Merge pull request #317 from mofeng-git/dev

Dev

.github/workflows/build.yml

@@ -0,0 +1,189 @@
+name: Build
+
+on:
+  pull_request:
+  workflow_dispatch:
+    inputs:
+      publish_release:
+        description: Publish GitHub Release
+        required: false
+        default: false
+        type: boolean
+      release_tag:
+        description: Release tag name when publishing
+        required: false
+        default: ""
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  frontend:
+    runs-on: ubuntu-22.04
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+
+      - name: Build frontend
+        working-directory: web
+        run: |
+          npm install
+          npm run build
+
+      - name: Upload frontend dist
+        uses: actions/upload-artifact@v4
+        with:
+          name: web-dist
+          path: web/dist
+          if-no-files-found: error
+          retention-days: 7
+
+  deb:
+    runs-on: ubuntu-22.04
+    needs: frontend
+    timeout-minutes: 120
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download frontend dist
+        uses: actions/download-artifact@v4
+        with:
+          name: web-dist
+          path: web/dist
+
+      - uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache Rust dependencies
+        uses: Swatinem/rust-cache@v2
+        with:
+          # The Docker workflow builds the same targets with the same Cross images.
+          shared-key: linux-cross-release
+          key: ${{ hashFiles('Cross.toml', 'build/cross/Dockerfile.*') }}
+          cache-all-crates: true
+
+      - name: Install cross
+        run: cargo install cross --version 0.2.5 --locked
+
+      - name: Build linux binary
+        run: bash build/build-images.sh
+
+      - name: Package deb
+        run: bash build/package-deb.sh
+
+      - name: Upload deb
+        uses: actions/upload-artifact@v4
+        with:
+          name: one-kvm-deb
+          path: target/debian/*.deb
+          if-no-files-found: error
+          retention-days: 7
+
+  windows:
+    runs-on: windows-2022
+    needs: frontend
+    timeout-minutes: 120
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download frontend dist
+        uses: actions/download-artifact@v4
+        with:
+          name: web-dist
+          path: web/dist
+
+      - uses: dtolnay/rust-toolchain@stable
+
+      - name: Set up MSVC
+        uses: ilammy/msvc-dev-cmd@v1
+
+      - name: Prepare vcpkg and dependencies
+        shell: pwsh
+        run: |
+          $env:VCPKG_ROOT = "C:\vcpkg"
+          $env:VCPKG_DEFAULT_TRIPLET = "x64-windows-static"
+          $env:VCPKG_INSTALLED_DIR = Join-Path $pwd "vcpkg_installed"
+
+          if (-not (Test-Path $env:VCPKG_ROOT)) {
+            git clone https://github.com/microsoft/vcpkg $env:VCPKG_ROOT
+          }
+
+          & "$env:VCPKG_ROOT\bootstrap-vcpkg.bat" -disableMetrics
+          & "$env:VCPKG_ROOT\vcpkg.exe" install --triplet $env:VCPKG_DEFAULT_TRIPLET --x-install-root="$env:VCPKG_INSTALLED_DIR"
+
+          $tripletRoot = Join-Path $env:VCPKG_INSTALLED_DIR $env:VCPKG_DEFAULT_TRIPLET
+          $env:TURBOJPEG_SOURCE = "explicit"
+          $env:TURBOJPEG_LIB_DIR = Join-Path $tripletRoot "lib"
+          $env:TURBOJPEG_INCLUDE_DIR = Join-Path $tripletRoot "include"
+
+          "VCPKG_ROOT=$env:VCPKG_ROOT" | Out-File -FilePath $env:GITHUB_ENV -Append
+          "VCPKG_DEFAULT_TRIPLET=$env:VCPKG_DEFAULT_TRIPLET" | Out-File -FilePath $env:GITHUB_ENV -Append
+          "VCPKG_INSTALLED_DIR=$env:VCPKG_INSTALLED_DIR" | Out-File -FilePath $env:GITHUB_ENV -Append
+          "TURBOJPEG_SOURCE=$env:TURBOJPEG_SOURCE" | Out-File -FilePath $env:GITHUB_ENV -Append
+          "TURBOJPEG_LIB_DIR=$env:TURBOJPEG_LIB_DIR" | Out-File -FilePath $env:GITHUB_ENV -Append
+          "TURBOJPEG_INCLUDE_DIR=$env:TURBOJPEG_INCLUDE_DIR" | Out-File -FilePath $env:GITHUB_ENV -Append
+
+      - name: Cache Rust dependencies
+        uses: Swatinem/rust-cache@v2
+        with:
+          shared-key: windows-msvc-release
+          key: ${{ hashFiles('vcpkg.json', 'vcpkg-configuration.json') }}
+
+      - name: Build Windows exe
+        shell: pwsh
+        run: .\build\windows\build.ps1 -Configuration release -Package
+
+      - name: Upload exe
+        uses: actions/upload-artifact@v4
+        with:
+          name: one-kvm-windows-exe
+          path: target/x86_64-pc-windows-msvc/release/one-kvm_*.exe
+          if-no-files-found: error
+          retention-days: 7
+
+  release:
+    runs-on: ubuntu-22.04
+    needs: [deb, windows]
+    if: ${{ github.event_name == 'workflow_dispatch' && inputs.publish_release }}
+    timeout-minutes: 30
+    permissions:
+      contents: write
+    steps:
+      - name: Validate release tag
+        run: |
+          if [ -z "${{ inputs.release_tag }}" ]; then
+            echo "release_tag is required when publish_release is true"
+            exit 1
+          fi
+
+      - name: Download deb artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: one-kvm-deb
+          path: release-artifacts/deb
+
+      - name: Download exe artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: one-kvm-windows-exe
+          path: release-artifacts/windows
+
+      - name: Publish GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ inputs.release_tag }}
+          prerelease: true
+          generate_release_notes: true
+          files: |
+            release-artifacts/deb/*.deb
+            release-artifacts/windows/*.exe

.github/workflows/docker.yml

@@ -0,0 +1,91 @@
+name: Docker
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: Docker image tag
+        required: false
+        default: latest
+      platforms:
+        description: Docker platforms
+        required: false
+        default: linux/amd64,linux/arm64,linux/arm/v7
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+
+env:
+  CARGO_TERM_COLOR: always
+  DOCKER_PLATFORMS: ${{ github.event_name == 'workflow_dispatch' && inputs.platforms || 'linux/amd64,linux/arm64,linux/arm/v7' }}
+  DOCKER_TAG: ${{ github.event_name == 'workflow_dispatch' && inputs.tag || github.ref_name }}
+
+jobs:
+  docker:
+    runs-on: ubuntu-22.04
+    timeout-minutes: 360
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+
+      - uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache Rust dependencies
+        uses: Swatinem/rust-cache@v2
+        with:
+          # Reuse dependency artifacts produced by the deb job and vice versa.
+          shared-key: linux-cross-release
+          key: ${{ hashFiles('Cross.toml', 'build/cross/Dockerfile.*') }}
+          cache-all-crates: true
+
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y unzip xz-utils
+          cargo install cross --version 0.2.5 --locked
+
+      - name: Build frontend
+        working-directory: web
+        run: |
+          npm install
+          npm run build
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build linux binaries
+        run: bash build/build-images.sh
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          registry: docker.io
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Log in to Aliyun Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: registry.cn-hangzhou.aliyuncs.com
+          username: ${{ secrets.ALIYUN_USERNAME }}
+          password: ${{ secrets.ALIYUN_PASSWORD }}
+
+      - name: Publish Docker images
+        run: |
+          ./build/package-docker.sh --platform "$DOCKER_PLATFORMS" --registry docker.io/silentwind0 --tag "$DOCKER_TAG" --push
+          ./build/package-docker.sh --platform "$DOCKER_PLATFORMS" --registry registry.cn-hangzhou.aliyuncs.com/silentwind --tag "$DOCKER_TAG" --push
+          ./build/package-docker.sh --platform "$DOCKER_PLATFORMS" --registry docker.io/silentwind0 --variant full --tag "$DOCKER_TAG" --push
+          ./build/package-docker.sh --platform "$DOCKER_PLATFORMS" --registry registry.cn-hangzhou.aliyuncs.com/silentwind --variant full --tag "$DOCKER_TAG" --push

.gitignore

@@ -1,6 +1,5 @@
 # Rust
-/target/
-Cargo.lock
+target/
 
 # IDE
 .idea/
@@ -30,6 +29,8 @@ Thumbs.db
 
 # Build artifacts
 /dist/
+/build-staging
+/.tmp/
 
 # Frontend (built files)
 /web/node_modules/
@@ -40,3 +41,5 @@ CLAUDE.md
 # Secrets (compile-time configuration)
 secrets.toml
 .env
+/docs/
+web/package-lock.json

Cargo.toml

@@ -1,135 +1,212 @@
 [package]
 name = "one-kvm"
-version = "0.1.3"
+version = "0.2.8"
 edition = "2021"
 authors = ["SilentWind"]
 description = "A open and lightweight IP-KVM solution written in Rust"
-license = "GPL-2.0"
+license = "AGPL-3.0-only"
 repository = "https://github.com/mofeng-git/One-KVM"
 keywords = ["kvm", "ipkvm", "remote-management", "embedded"]
 categories = ["embedded", "network-programming"]
 
+[features]
+default = ["desktop"]
+desktop = [
+    "dep:tokio",
+    "dep:tokio-util",
+    "dep:axum",
+    "dep:axum-extra",
+    "dep:tower-http",
+    "dep:sqlx",
+    "dep:serde",
+    "dep:serde_json",
+    "dep:toml_edit",
+    "dep:tracing",
+    "dep:tracing-subscriber",
+    "dep:thiserror",
+    "dep:anyhow",
+    "dep:argon2",
+    "dep:rand",
+    "dep:totp-rs",
+    "dep:uuid",
+    "dep:base64",
+    "dep:nix",
+    "dep:reqwest",
+    "dep:urlencoding",
+    "dep:rust-embed",
+    "dep:mime_guess",
+    "dep:openssl",
+    "dep:rcgen",
+    "dep:axum-server",
+    "dep:clap",
+    "dep:time",
+    "dep:tempfile",
+    "dep:bytes",
+    "dep:bytemuck",
+    "dep:xxhash-rust",
+    "dep:async-stream",
+    "dep:futures",
+    "dep:tokio-tungstenite",
+    "dep:parking_lot",
+    "dep:arc-swap",
+    "dep:webrtc",
+    "dep:rtp",
+    "dep:rtsp-types",
+    "dep:sdp-types",
+    "dep:serialport",
+    "dep:async-trait",
+    "dep:libc",
+    "dep:ventoy-img",
+    "dep:protobuf",
+    "dep:sodiumoxide",
+    "dep:des",
+    "dep:sha2",
+    "dep:typeshare",
+    "dep:hwcodec",
+    "dep:libyuv",
+    "dep:turbojpeg",
+    "dep:audiopus",
+    "dep:v4l2r",
+    "dep:alsa",
+    "dep:gpio-cdev",
+    "dep:one-kvm-bluetooth-hid",
+    "dep:cpal",
+    "dep:windows-sys",
+]
 [dependencies]
 # Async runtime
-tokio = { version = "1", features = ["full"] }
-tokio-util = { version = "0.7", features = ["rt"] }
+tokio = { version = "1", features = ["fs", "io-util", "macros", "net", "process", "rt-multi-thread", "signal", "sync", "time"], optional = true }
+tokio-util = { version = "0.7", features = ["rt"], optional = true }
 
 # Web framework
-axum = { version = "0.8", features = ["ws", "multipart", "tokio"] }
-axum-extra = { version = "0.12", features = ["typed-header", "cookie"] }
-tower-http = { version = "0.6", features = ["fs", "cors", "trace", "compression-gzip"] }
+axum = { version = "0.8", features = ["ws", "multipart", "tokio"], optional = true }
+axum-extra = { version = "0.12", features = ["cookie"], optional = true }
+tower-http = { version = "0.6", features = ["cors", "trace", "set-header"], optional = true }
 
 # Database - Use bundled SQLite for static linking
-sqlx = { version = "0.8", features = ["runtime-tokio", "sqlite"] }
+sqlx = { version = "0.9", default-features = false, features = ["runtime-tokio", "sqlite-bundled"], optional = true }
 
 # Serialization
-serde = { version = "1", features = ["derive"] }
-serde_json = "1"
+serde = { version = "1", features = ["derive"], optional = true }
+serde_json = { version = "1", optional = true }
+toml_edit = { version = "0.25", optional = true }
 
 # Logging
-tracing = "0.1"
-tracing-subscriber = { version = "0.3", features = ["env-filter", "json"] }
+tracing = { version = "0.1", optional = true }
+tracing-subscriber = { version = "0.3", features = ["env-filter", "json", "tracing-log"], optional = true }
 
 # Error handling
-thiserror = "2"
-anyhow = "1"
+thiserror = { version = "2", optional = true }
+anyhow = { version = "1", optional = true }
 
 # Authentication
-argon2 = "0.5"
-rand = "0.9"
+argon2 = { version = "0.5", optional = true }
+rand = { version = "0.10", optional = true }
+totp-rs = { version = "5.7", features = ["gen_secret", "otpauth", "zeroize"], optional = true }
 
 # Utilities
-uuid = { version = "1", features = ["v4", "serde"] }
-chrono = { version = "0.4", features = ["serde"] }
-base64 = "0.22"
-nix = { version = "0.30", features = ["fs", "net", "hostname", "poll"] }
+uuid = { version = "1", features = ["v4", "serde"], optional = true }
+base64 = { version = "0.22", optional = true }
+tempfile = { version = "3", optional = true }
 
 # HTTP client (for URL downloads)
-# Use rustls by default, but allow native-tls for systems with older GLIBC
-reqwest = { version = "0.13", features = ["stream", "rustls"], default-features = false }
-urlencoding = "2"
+reqwest = { version = "0.13", features = ["stream", "native-tls-vendored", "json"], default-features = false, optional = true }
+urlencoding = { version = "2", optional = true }
 
 # Static file embedding
-rust-embed = { version = "8", features = ["compression"] }
-mime_guess = "2"
+rust-embed = { version = "8", features = ["compression", "debug-embed"], optional = true }
+mime_guess = { version = "2", optional = true }
 
 # TLS/HTTPS
-rustls = { version = "0.23", features = ["ring"] }
-rcgen = "0.14"
-axum-server = { version = "0.8", features = ["tls-rustls"] }
+openssl = { version = "0.10", features = ["vendored"], optional = true }
+rcgen = { version = "0.14", optional = true }
+axum-server = { version = "0.8", features = ["tls-openssl"], optional = true }
 
 # CLI argument parsing
-clap = { version = "4", features = ["derive"] }
+clap = { version = "4", features = ["derive"], optional = true }
 
-# Time
-time = "0.3"
-
-# Video capture (V4L2)
-v4l = "0.14"
-
-# JPEG encoding (libjpeg-turbo, SIMD accelerated)
-turbojpeg = "1.3"
+# Time (cookie max_age + RFC3339 timestamps)
+time = { version = "0.3", features = ["serde", "formatting", "parsing"], optional = true }
 
 # Bytes handling
-bytes = "1"
-bytemuck = { version = "1.24", features = ["derive"] }
+bytes = { version = "1", optional = true }
+bytemuck = { version = "1.24", features = ["derive"], optional = true }
 
 # Frame deduplication (hash-based comparison)
-xxhash-rust = { version = "0.8", features = ["xxh64"] }
+xxhash-rust = { version = "0.8", features = ["xxh64"], optional = true }
 
 # Async channels
-async-stream = "0.3"
-futures = "0.3"
+async-stream = { version = "0.3", optional = true }
+futures = { version = "0.3", optional = true }
 
 # WebSocket client (for ttyd proxy)
-tokio-tungstenite = "0.28"
+tokio-tungstenite = { version = "0.29", optional = true }
 
 # High-performance synchronization
-parking_lot = "0.12"
-arc-swap = "1.8"
+parking_lot = { version = "0.12", optional = true }
+arc-swap = { version = "1.8", optional = true }
 
 # WebRTC
-webrtc = "0.14"
-rtp = "0.14"
-
-# Audio (ALSA capture + Opus encoding)
-# Note: audiopus links to libopus.so (unavoidable for audio support)
-alsa = "0.11"
-audiopus = "0.2"
+webrtc = { version = "0.17", features = ["vendored-openssl"], optional = true }
+rtp = { version = "0.17", optional = true }
+rtsp-types = { version = "0.1", optional = true }
+sdp-types = { version = "0.1", optional = true }
 
 # HID (serial port for CH9329)
-serialport = "4"
-async-trait = "0.1"
-libc = "0.2"
+serialport = { version = "4", optional = true }
+async-trait = { version = "0.1", optional = true }
+libc = { version = "0.2", optional = true }
 
 # Ventoy bootable image support
-ventoy-img = { path = "libs/ventoy-img-rs" }
-
-# ATX (GPIO control)
-gpio-cdev = "0.6"
-
-# H264 hardware/software encoding (hwcodec from rustdesk)
-hwcodec = { path = "libs/hwcodec" }
+ventoy-img = { path = "libs/ventoy-img-rs", optional = true }
 
 # RustDesk protocol support
-protobuf = { version = "3.7", features = ["with-bytes"] }
-sodiumoxide = "0.2"
-sha2 = "0.10"
-
-# High-performance pixel format conversion (libyuv)
-libyuv = { path = "res/vcpkg/libyuv" }
-
+protobuf = { version = "3.7", features = ["with-bytes"], optional = true }
+sodiumoxide = { version = "0.2", optional = true }
+des = { version = "0.9", optional = true }
+sha2 = { version = "0.11", optional = true }
 # TypeScript type generation
-typeshare = "1.0"
+typeshare = { version = "1.0", optional = true }
 
-[dev-dependencies]
-tokio-test = "0.4"
-tempfile = "3"
+[target.'cfg(any(target_os = "linux", windows))'.dependencies]
+# Video encoding/decoding (FFmpeg/libjpeg-turbo/libyuv; available on Windows and Linux)
+hwcodec = { path = "libs/hwcodec", features = ["bytes"], optional = true }
+libyuv = { path = "res/vcpkg/libyuv", optional = true }
+turbojpeg = { version = "1.3", optional = true }
+# Note: audiopus links to libopus.so (unavoidable for audio support)
+audiopus = { version = "0.2", optional = true }
+
+[target.'cfg(target_os = "linux")'.dependencies]
+one-kvm-bluetooth-hid = { path = "libs/bluetooth-hid", optional = true }
+
+# Utilities
+nix = { version = "0.31", default-features = false, features = ["fs", "socket", "net", "hostname", "poll"], optional = true }
+
+# Video capture (V4L2)
+v4l2r = { path = "libs/v4l2r", optional = true }
+
+# Audio (ALSA capture)
+alsa = { version = "0.11", optional = true }
+
+# ATX (GPIO control)
+gpio-cdev = { version = "0.6", optional = true }
+
+[target.'cfg(windows)'.dependencies]
+cpal = { version = "0.18", default-features = false, optional = true }
+windows-sys = { version = "0.61", features = [
+    "Win32_Foundation",
+    "Win32_NetworkManagement_IpHelper",
+    "Win32_NetworkManagement_Ndis",
+    "Win32_Networking_WinSock",
+    "Win32_System_SystemInformation",
+    "Win32_System_Threading",
+], optional = true }
 
 [build-dependencies]
 protobuf-codegen = "3.7"
-toml = "0.9"
-cc = "1"
+
+[patch.crates-io]
+dtls = { path = "libs/dtls" }
 
 [profile.release]
 opt-level = 3

Cross.toml

@@ -1,5 +1,5 @@
 # Cross-compilation configuration for One-KVM
-# Uses pre-built custom Debian 11 based images for consistent build/runtime environment
+# Uses pre-built custom Debian 12 based images for consistent build/runtime environment
 # See: https://github.com/cross-rs/cross
 
 [build]

LICENSE

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+  A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate.  Many developers of free software are heartened and
+encouraged by the resulting cooperation.  However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+  The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community.  It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server.  Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+  An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals.  This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU Affero General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
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+
+  To "modify" a work means to copy from or adapt all or part of the work
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+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
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+public, and in some countries other activities as well.
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+  The "source code" for a work means the preferred form of the work
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+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
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+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
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+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
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+for you must do so exclusively on your behalf, under your direction
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+your copyrighted material outside their relationship with you.
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+  Conveying under any other circumstances is permitted solely under
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+makes it unnecessary.
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+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
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+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
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+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
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+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
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+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
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+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
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+
+    d) If the work has interactive user interfaces, each must display
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+    work need not make them do so.
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+  A compilation of a covered work with other separate and independent
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+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
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+
+    b) Convey the object code in, or embodied in, a physical product
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+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
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+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
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+    copy the object code is a network server, the Corresponding Source
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+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
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+typical or common use of that class of product, regardless of the status
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+
+  "Installation Information" for a User Product means any methods,
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+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
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+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
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+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

README.en.md

@@ -0,0 +1,251 @@
+<div align="center">
+  <h1>One-KVM</h1>
+  <p><strong>An open, lightweight IP-KVM stack in Rust — remote management down to BIOS level</strong></p>
+
+  <p><a href="README.md">简体中文</a> · <a href="README.en.md">English</a></p>
+
+  [![GitHub Release](https://img.shields.io/github/v/release/mofeng-git/One-KVM)](https://github.com/mofeng-git/One-KVM/releases)
+  [![GitHub stars](https://img.shields.io/github/stars/mofeng-git/One-KVM?style=social)](https://github.com/mofeng-git/One-KVM/stargazers)
+  [![GitHub forks](https://img.shields.io/github/forks/mofeng-git/One-KVM?style=social)](https://github.com/mofeng-git/One-KVM/network/members)
+  [![GitHub issues](https://img.shields.io/github/issues/mofeng-git/One-KVM)](https://github.com/mofeng-git/One-KVM/issues)
+</div>
+
+---
+
+## Overview
+
+**One-KVM (Rust)** is a lightweight IP-KVM solution written in Rust. It lets you manage servers and workstations over the network, including at BIOS level.
+
+Goals: an open, lightweight, easy-to-use IP-KVM stack.
+
+- **Open**: not tied to one hardware recipe; runs across many setups.
+- **Lightweight**: shipped as a binary with minimal moving parts for deployment.
+- **Easy to use**: no hand-edited config files required; settings are done in the web UI.
+
+For more information, see the [One-KVM Rust documentation](https://docs.one-kvm.cn/).
+
+> **One-KVM (Python)** is no longer maintained. If you still need it, see <https://github.com/mofeng-git/One-KVM/tree/python>.
+
+<div align="center">
+
+![One-KVM web console](https://one-kvm.cn/hero-app-effect.png)
+
+</div>
+
+## Features
+
+**Core**
+
+| Area | Capabilities |
+|------|----------------|
+| Video capture | HDMI USB / MIPI CSI / RK3588 HDMI IN; MJPEG and WebRTC (H.264 / H.265 / VP8 / VP9) |
+| Video encoding | VAAPI / QSV / RKMPP / V4L2 M2M hardware paths, with software fallback |
+| Keyboard & mouse | USB OTG HID or CH340 + CH9329 HID; absolute / relative mouse |
+| Virtual media | USB mass storage; ISO/IMG mount and Ventoy-style virtual USB |
+| ATX power | GPIO or USB relay; power control |
+| Audio | ALSA capture + Opus (HTTP / WebRTC) |
+
+## Installation
+
+Release artifacts are on [GitHub Releases](https://github.com/mofeng-git/One-KVM/releases). Below are short paths for common setups. For **system requirements, hardware, Docker env vars, USB OTG**, and full troubleshooting, see the [One-KVM documentation](https://docs.one-kvm.cn/) (Chinese; use a translator if needed).
+
+### Debian / Ubuntu (.deb)
+
+Download a `one-kvm_*.deb` matching your CPU architecture from Releases, then from the directory containing the package:
+
+```bash
+sudo apt update
+sudo apt install ./one-kvm_0.x.x_<arch>.deb
+```
+
+Replace the version and architecture in the filename with your actual file name.
+
+### Docker
+
+Images:
+
+- **one-kvm** — main app + ttyd  
+- **one-kvm-full** — same plus optional extras (e.g. gostc, easytier-core)
+
+Example:
+
+```bash
+docker run --name one-kvm -itd \
+  --privileged=true --restart unless-stopped \
+  -v /dev:/dev -v /sys:/sys \
+  --net=host \
+  silentwind0/one-kvm-full
+```
+
+If pulls are slow, use the Aliyun mirror, e.g. `registry.cn-hangzhou.aliyuncs.com/silentwind/one-kvm-full` (and `registry.cn-hangzhou.aliyuncs.com/silentwind/one-kvm` for the slim image).
+
+### fnOS NAS (Feiniu / 飞牛)
+
+One-KVM is listed in the fnOS **app store**; search and install on your NAS.
+
+### Web UI and first run
+
+Open `http://<device-ip>:8080` in a browser (**8420** after fnOS install). The first visit runs initial setup.
+
+## Reporting issues
+
+If something breaks:
+
+1. Open [GitHub Issues](https://github.com/mofeng-git/One-KVM/issues) or report in the project QQ group.  
+2. Include **useful** error messages and steps to reproduce.  
+3. Mention software version, hardware, and OS details.
+
+## Sponsorship
+
+One-KVM builds on many great open-source projects; a lot of time goes into testing and maintenance. If you find it useful, you can support development on **[Afdian (为爱发电)](https://afdian.com/a/silentwind)**.
+
+### Thanks
+
+<details>
+<summary><strong>Supporter list</strong></summary>
+
+- 浩龙的电子嵌入式之路
+
+- Tsuki
+
+- H_xiaoming
+
+- 0蓝蓝0
+
+- fairybl
+
+- Will
+
+- 自.知
+
+- 观棋不语٩ ི۶
+
+- 爱发电用户_a57a4
+
+- 爱发电用户_2c769
+
+- 霜序
+
+- 远方（闲鱼用户名：小远技术店铺）
+
+- 爱发电用户_399fc
+
+- 斐斐の
+
+- 爱发电用户_09451
+
+- 超高校级的錆鱼
+
+- 爱发电用户_08cff
+
+- guoke
+
+- mgt
+
+- 姜沢掵
+
+- ui_beam
+
+- 爱发电用户_c0dd7
+
+- 爱发电用户_dnjK
+
+- 忍者胖猪
+
+- 永遠の願い
+
+- 爱发电用户_GBrF
+
+- 爱发电用户_fd65c
+
+- 爱发电用户_vhNa
+
+- 爱发电用户_Xu6S
+
+- moss
+
+- woshididi
+
+- 爱发电用户_a0fd1
+
+- 爱发电用户_f6bH
+
+- 码农
+
+- 爱发电用户_6639f
+
+- jeron
+
+- 爱发电用户_CN7y
+
+- 爱发电用户_Up6w
+
+- 爱发电用户_e3202
+
+- 一语念白
+
+- 云边
+
+- 爱发电用户_5a711
+
+- 爱发电用户_9a706
+
+- T0m9ir1SUKI
+
+- 爱发电用户_56d52
+
+- 爱发电用户_3N6F
+
+- DUSK
+
+- 飘零
+
+- .
+
+- 饭太稀
+
+- 葱
+
+- MaxZ
+
+- 爱发电用户_c5f33
+
+- 爱发电用户_09386
+
+- 爱发电用户_JT6c
+
+- 爱发电用户_d3d9c
+
+- 爱发电用户_97b41
+
+- 偶然
+
+- 爱发电用户_dba45
+
+- 爱发电用户_d4f8b
+
+- 故人。
+
+- ......
+
+</details>
+
+### Sponsors
+
+**File hosting**
+
+- **[Huang1111 public-interest program](https://pan.huang1111.cn/s/mxkx3T1)** — login-free downloads
+
+**Cloud**
+
+- **[林枫云](https://www.dkdun.cn)** — project server sponsorship
+
+![林枫云](https://docs.one-kvm.cn/img/36076FEFF0898A80EBD5756D28F4076C.png)
+
+林枫云 offers premium network routes, high-frequency game servers, and high-bandwidth servers in China and abroad.
+
+- **[Beta Network](https://my.beita.cc/?ref=github_onekvm)** — project server sponsorship
+
+![BTBT](https://github.com/user-attachments/assets/c442d5f5-d72f-4a07-b9f4-400a6a0c3f1e)
+
+Remote computers, consumer GPU servers, and dedicated physical machines with fully automated online delivery.

README.md

@@ -2,77 +2,92 @@
   <h1>One-KVM</h1>
   <p><strong>Rust 编写的开放轻量 IP-KVM 解决方案，实现 BIOS 级远程管理</strong></p>
 
-  <p><a href="README.md">简体中文</a></p>
+  <p><a href="README.md">简体中文</a> · <a href="README.en.md">English</a></p>
 
+  [![GitHub Release](https://img.shields.io/github/v/release/mofeng-git/One-KVM)](https://github.com/mofeng-git/One-KVM/releases)
   [![GitHub stars](https://img.shields.io/github/stars/mofeng-git/One-KVM?style=social)](https://github.com/mofeng-git/One-KVM/stargazers)
   [![GitHub forks](https://img.shields.io/github/forks/mofeng-git/One-KVM?style=social)](https://github.com/mofeng-git/One-KVM/network/members)
   [![GitHub issues](https://img.shields.io/github/issues/mofeng-git/One-KVM)](https://github.com/mofeng-git/One-KVM/issues)
-
-  <p>
-    <a href="docs/README.md">📖 技术文档</a> •
-    <a href="#快速开始">⚡ 快速开始</a> •
-    <a href="#功能介绍">📊 功能介绍</a> •
-    <a href="#迁移说明">🔁 迁移说明</a>
-  </p>
 </div>
 
 ---
 
-## 📖 项目概述
+## 项目概述
 
 **One-KVM Rust** 是一个用 Rust 编写的轻量级 IP-KVM 解决方案，可通过网络远程管理服务器和工作站，实现 BIOS 级远程控制。
 
-项目目标：
+项目目标：提供一个开放、轻量、易用的 IPKVM 解决方案。
 
-- **开放**：不绑定特定硬件配置，尽量适配常见 Linux 设备
-- **轻量**：单二进制分发，部署过程更简单
-- **易用**：网页界面完成设备与参数配置，尽量减少手动改配置文件
+- **开放**：不绑定特定硬件配置，可在各类硬件环境中稳定运行。
+- **轻量**：以二进制文件形式分发，无繁杂的依赖项，部署过程简单。
+- **易用**：无需手动编辑配置文件，参数设置均可通过网页界面完成。
 
-> **注意：** One-KVM Rust 目前仍处于开发早期阶段，功能与细节会快速迭代，欢迎体验与反馈。
+更多内容可访问 [One-KVM Rust 文档站点](https://docs.one-kvm.cn/)。
 
-## 🔁 迁移说明
+> **One-KVM Python** 已停止开发，如有需要可访问 <https://github.com/mofeng-git/One-KVM/tree/python>。
 
-开发重心正在从 **One-KVM Python** 逐步转向 **One-KVM Rust**。
+<div align="center">
 
-- 如果你在使用 **One-KVM Python（基于 PiKVM）**，请查看 [One-KVM Python 文档](https://docs.one-kvm.cn/python/)
-- One-KVM Rust 相较于 One-KVM Python：**尚未适配 CSI HDMI 采集卡**、**不支持 VNC 访问**，仍处于开发早期阶段
+![One-KVM Web 控制台界面](https://one-kvm.cn/hero-app-effect.png)
 
-## 📊 功能介绍
+</div>
 
-### 核心功能
+## 功能介绍
 
-| 功能 | 说明 |
+**核心功能**
+
+| 功能 | 能力说明 |
 |------|------|
-| 视频采集 | HDMI USB 采集卡支持，提供 MJPEG / WebRTC（H.264/H.265/VP8/VP9） |
+| 视频采集 | HDMI USB /MIPI CSI/RK3588 HDMI IN 采集支持，提供 MJPEG / WebRTC（H.264/H.265/VP8/VP9） 视频流|
+| 视频编码 | VAAPI/QSV/RKMPP/V4L2M2M 硬件编码支持，以及软件编码兜底 |
 | 键鼠控制 | USB OTG HID 或 CH340 + CH9329 HID，支持绝对/相对鼠标模式 |
 | 虚拟媒体 | USB Mass Storage，支持 ISO/IMG 镜像挂载和 Ventoy 虚拟U盘模式 |
-| ATX 电源控制 | GPIO 控制电源/重启按钮 |
+| ATX 电源控制 | GPIO/USB 继电器，支持电源控制 |
 | 音频传输 | ALSA 采集 + Opus 编码（HTTP/WebRTC） |
 
-### 硬件编码
+## 安装使用
 
-支持自动检测和选择硬件加速：
+构建产物见 [GitHub Releases](https://github.com/mofeng-git/One-KVM/releases)。以下为常见安装方式的简要步骤；**系统要求、硬件准备、Docker 环境变量与 USB OTG 等完整说明**请查阅 [One-KVM Rust 文档站点](https://docs.one-kvm.cn/)。
 
-- **VAAPI**：Intel/AMD GPU
-- **RKMPP**：Rockchip SoC
-- **V4L2 M2M**：通用硬件编码器（尚未实现）
-- **软件编码**：CPU 编码
+### 使用 deb 安装（Debian / Ubuntu）
 
-### 扩展能力
+从 Releases 下载与本机架构匹配的 `one-kvm_*.deb`，在包所在目录执行：
 
-- Web UI 配置，多语言支持（中文/英文）
-- 内置 Web 终端（ttyd）内网穿透支持（gostc）、P2P 组网支持（EasyTier）、RustDesk 协议集成（用于跨平台远程访问能力扩展）
+```bash
+sudo apt update
+sudo apt install ./one-kvm_0.x.x_<arch>.deb
+```
 
-## ⚡ 安装使用
+将文件名中的版本号与架构替换为实际下载的包名。
 
-可以访问 [One-KVM Rust 文档站点](https://docs.one-kvm.cn/) 获取详细信息。
+### 使用 Docker
+
+镜像分为 **one-kvm**（One-KVM 主程序 + ttyd）与 **one-kvm-full**（另含 gostc、easytier-core 等可选扩展），按需选用。
+
+```bash
+docker run --name one-kvm -itd \
+  --privileged=true --restart unless-stopped \
+  -v /dev:/dev -v /sys:/sys \
+  --net=host \
+  silentwind0/one-kvm-full
+```
+
+拉取较慢时，可将镜像名替换为阿里云加速，例如 `registry.cn-hangzhou.aliyuncs.com/silentwind/one-kvm-full`（`one-kvm` 镜像同理，将 `silentwind0/one-kvm` 换为 `registry.cn-hangzhou.aliyuncs.com/silentwind/one-kvm`）。
+
+### 飞牛 NAS
+
+One-KVM 已上架飞牛 **应用市场**，在 NAS 上直接搜索安装即可。
+
+### 访问 Web 与首次配置
+
+浏览器访问 `http://<设备 IP>:8080`（飞牛 NAS 安装后为 8420 端口）。首次访问将引导完成初始配置。
 
 ## 报告问题
 
 如果您发现了问题，请：
 1. 使用 [GitHub Issues](https://github.com/mofeng-git/One-KVM/issues) 报告，或加入 QQ 群聊反馈。
-2. 提供详细的错误信息和复现步骤
-3. 包含您的硬件配置和系统信息
+2. 提供有帮助的错误信息和复现步骤
+3. 包含您使用的软件版本、硬件配置和系统信息
 
 ## 赞助支持
 
@@ -95,8 +110,6 @@
 
 - Will
 
-- 浩龙的电子嵌入式之路
-
 - 自.知
 
 - 观棋不语٩ ི۶
@@ -195,6 +208,18 @@
 
 - 爱发电用户_JT6c
 
+- 爱发电用户_d3d9c
+
+- 爱发电用户_97b41
+
+- 偶然
+
+- 爱发电用户_dba45
+
+- 爱发电用户_d4f8b
+
+- 故人。
+
 - ......
 
 </details>
@@ -208,8 +233,14 @@
 
 **云服务商**
 
-- **[林枫云](https://www.dkdun.cn)** - 赞助了本项目宁波大带宽服务器
+- **[林枫云](https://www.dkdun.cn)** - 赞助了本项目服务器
 
-![林枫云](https://docs.one-kvm.cn/img/36076FEFF0898A80EBD5756D28F4076C.png)
+  <img  height="128" alt="林枫云" src="https://docs.one-kvm.cn/img/36076FEFF0898A80EBD5756D28F4076C.png" />
 
-林枫云主营国内外地域的精品线路业务服务器、高主频游戏服务器和大带宽服务器。
+  林枫云主营国内外地域的精品线路业务服务器、高主频游戏服务器和大带宽服务器。
+
+- **[贝塔网络](https://my.beita.cc/?ref=github_onekvm)** - 赞助了本项目服务器
+
+  <img height="128" alt="BTBT" src="https://github.com/user-attachments/assets/c442d5f5-d72f-4a07-b9f4-400a6a0c3f1e" />
+
+  远程电脑、消费级GPU服务器、独服物理机，全自动在线交付。

build.rs

@@ -2,21 +2,6 @@ use std::fs;
 use std::path::Path;
 
 fn main() {
-    // Set BUILD_DATE environment variable for compile-time access
-    // Use system time to avoid adding chrono as a build dependency
-    let now = std::time::SystemTime::now();
-    let duration = now.duration_since(std::time::UNIX_EPOCH).unwrap();
-    let secs = duration.as_secs();
-
-    // Convert Unix timestamp to date (simplified calculation)
-    // Days since epoch
-    let days = secs / 86400;
-    // Calculate year, month, day from days since 1970-01-01
-    let (year, month, day) = days_to_ymd(days as i64);
-    let build_date = format!("{:04}-{:02}-{:02}", year, month, day);
-
-    println!("cargo:rustc-env=BUILD_DATE={}", build_date);
-
     // Compile protobuf files for RustDesk protocol
     compile_protos();
 
@@ -64,25 +49,6 @@ fn generate_secrets() {
 pub mod ice {
     /// Google public STUN server URL (hardcoded)
     pub const STUN_SERVER: &str = "stun:stun.l.google.com:19302";
-
-    /// TURN server URLs - not provided, users must configure their own
-    pub const TURN_URLS: &str = "";
-
-    /// TURN authentication username
-    pub const TURN_USERNAME: &str = "";
-
-    /// TURN authentication password
-    pub const TURN_PASSWORD: &str = "";
-
-    /// Always returns true since we have STUN
-    pub const fn is_configured() -> bool {
-        true
-    }
-
-    /// Always returns false since TURN is not provided
-    pub const fn has_turn() -> bool {
-        false
-    }
 }
 
 /// RustDesk public server configuration - NOT PROVIDED
@@ -105,19 +71,3 @@ pub mod rustdesk {
 
     fs::write(&dest_path, code).expect("Failed to write secrets_generated.rs");
 }
-
-/// Convert days since Unix epoch to year-month-day
-fn days_to_ymd(days: i64) -> (i32, u32, u32) {
-    // Algorithm from http://howardhinnant.github.io/date_algorithms.html
-    let z = days + 719468;
-    let era = if z >= 0 { z } else { z - 146096 } / 146097;
-    let doe = (z - era * 146097) as u32;
-    let yoe = (doe - doe / 1460 + doe / 36524 - doe / 146096) / 365;
-    let y = yoe as i64 + era * 400;
-    let doy = doe - (365 * yoe + yoe / 4 - yoe / 100);
-    let mp = (5 * doy + 2) / 153;
-    let d = doy - (153 * mp + 2) / 5 + 1;
-    let m = if mp < 10 { mp + 3 } else { mp - 9 };
-    let year = if m <= 2 { y + 1 } else { y };
-    (year as i32, m, d)
-}

build/Dockerfile.runtime

@@ -1,30 +1,43 @@
 # One-KVM Runtime Image
 # This Dockerfile only packages pre-compiled binaries (no compilation)
 # Used after cross-compiling with `cross build`
-# Using Debian 11 for maximum compatibility (GLIBC 2.31)
+# Using Debian 12 to match the build images (GLIBC 2.36)
 
 ARG TARGETPLATFORM=linux/amd64
 
-FROM debian:11-slim
+FROM debian:12-slim
 
 ARG TARGETPLATFORM
+ARG APT_MIRROR=
 
 # Install runtime dependencies in a single layer
 # All codec libraries (libx264, libx265, libopus) are now statically linked
 # Only hardware acceleration drivers and core system libraries remain dynamic
-RUN apt-get update && \
+# Set APT_MIRROR=mirrors.tuna.tsinghua.edu.cn to speed up builds in China
+RUN if [ -n "$APT_MIRROR" ]; then \
+        sed -i "s@deb.debian.org@${APT_MIRROR}@g" /etc/apt/sources.list.d/debian.sources; \
+    fi \
+    && sed -i 's/^Components: main$/Components: main contrib non-free non-free-firmware/' /etc/apt/sources.list.d/debian.sources && \
+    apt-get update && \
     apt-get install -y --no-install-recommends \
         # Core runtime (all platforms) - no codec libs needed
         ca-certificates \
+        # Bluetooth HID uses the host BlueZ system bus; btmgmt manages a dedicated adapter.
+        bluez \
         libudev1 \
         libasound2 \
+        # OTG Ethernet bridge control (nmcli talks to the host NetworkManager over D-Bus)
+        network-manager \
+        iproute2 \
+        iputils-ping \
         # v4l2 is handled by kernel, minimal userspace needed
         libv4l-0 \
         && \
     # Platform-specific hardware acceleration
     if [ "$TARGETPLATFORM" = "linux/amd64" ]; then \
         apt-get install -y --no-install-recommends \
-            libva2 libva-drm2 libva-x11-2 libx11-6 libxcb1 libxau6 libxdmcp6 libmfx1; \
+            libva2 libva-drm2 libva-x11-2 libx11-6 libxcb1 libxau6 libxdmcp6 libmfx1 \
+            i965-va-driver-shaders intel-media-va-driver-non-free vainfo; \
     elif [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
         apt-get install -y --no-install-recommends \
             libdrm2 libva2; \

build/Dockerfile.runtime-full

@@ -1,30 +1,43 @@
 # One-KVM Runtime Image (full)
 # This Dockerfile only packages pre-compiled binaries (no compilation)
 # Used after cross-compiling with `cross build`
-# Using Debian 11 for maximum compatibility (GLIBC 2.31)
+# Using Debian 12 to match the build images (GLIBC 2.36)
 
 ARG TARGETPLATFORM=linux/amd64
 
-FROM debian:11-slim
+FROM debian:12-slim
 
 ARG TARGETPLATFORM
+ARG APT_MIRROR=
 
 # Install runtime dependencies in a single layer
 # All codec libraries (libx264, libx265, libopus) are now statically linked
 # Only hardware acceleration drivers and core system libraries remain dynamic
-RUN apt-get update && \
+# Set APT_MIRROR=mirrors.tuna.tsinghua.edu.cn to speed up builds in China
+RUN if [ -n "$APT_MIRROR" ]; then \
+        sed -i "s@deb.debian.org@${APT_MIRROR}@g" /etc/apt/sources.list.d/debian.sources; \
+    fi \
+    && sed -i 's/^Components: main$/Components: main contrib non-free non-free-firmware/' /etc/apt/sources.list.d/debian.sources && \
+    apt-get update && \
     apt-get install -y --no-install-recommends \
         # Core runtime (all platforms) - no codec libs needed
         ca-certificates \
+        # Bluetooth HID uses the host BlueZ system bus; btmgmt manages a dedicated adapter.
+        bluez \
         libudev1 \
         libasound2 \
+        # OTG Ethernet bridge control (nmcli talks to the host NetworkManager over D-Bus)
+        network-manager \
+        iproute2 \
+        iputils-ping \
         # v4l2 is handled by kernel, minimal userspace needed
         libv4l-0 \
         && \
     # Platform-specific hardware acceleration
     if [ "$TARGETPLATFORM" = "linux/amd64" ]; then \
         apt-get install -y --no-install-recommends \
-            libva2 libva-drm2 libva-x11-2 libx11-6 libxcb1 libxau6 libxdmcp6 libmfx1; \
+            libva2 libva-drm2 libva-x11-2 libx11-6 libxcb1 libxau6 libxdmcp6 libmfx1 \
+            i965-va-driver-shaders intel-media-va-driver-non-free vainfo; \
     elif [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
         apt-get install -y --no-install-recommends \
             libdrm2 libva2; \

build/build-images.sh

@@ -19,6 +19,32 @@ ARCH_MAP=(
 build_arch() {
     local rust_target="$1"
 
+    case "${CHINAMIRRO:-}" in
+        1|true|TRUE|yes|YES|on|ON)
+            # Default Rust toolchain mirror is USTC (rsproxy.cn is unreachable via the
+            # Docker bridge on some networks because its CDN blocks the SNAT source IP).
+            local rust_dist="${RUSTUP_DIST_SERVER_MIRROR:-https://mirrors.ustc.edu.cn/rust-static}"
+            local rust_root="${RUSTUP_UPDATE_ROOT_MIRROR:-https://mirrors.ustc.edu.cn/rust-static/rustup}"
+            local crates_sparse="${CARGO_SPARSE_MIRROR:-sparse+https://mirrors.ustc.edu.cn/crates.io-index/}"
+            local crates_git="${CARGO_GIT_MIRROR:-https://mirrors.ustc.edu.cn/crates.io-index}"
+            local cross_build_opts="${CROSS_BUILD_OPTS:+$CROSS_BUILD_OPTS }--progress=plain --build-arg CHINAMIRRO=1 --build-arg GH_PROXY=${GH_PROXY:-https://ghfast.top/} --build-arg DEBIAN_IMAGE=${DEBIAN_IMAGE:-dockerproxy.net/library/debian:12}"
+            cross_build_opts="$cross_build_opts --build-arg HTTP_PROXY= --build-arg HTTPS_PROXY= --build-arg ALL_PROXY= --build-arg NO_PROXY="
+            cross_build_opts="$cross_build_opts --build-arg http_proxy= --build-arg https_proxy= --build-arg all_proxy= --build-arg no_proxy="
+            echo "=== China mirror acceleration: enabled ==="
+            echo "=== Building: $rust_target (via cross with custom Dockerfile) ==="
+            env \
+                CROSS_BUILD_OPTS="$cross_build_opts" \
+                CARGO_SOURCE_CRATES_IO_REPLACE_WITH=cn-mirror \
+                CARGO_SOURCE_CN-MIRROR_REGISTRY="$crates_sparse" \
+                CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse \
+                CARGO_NET_GIT_FETCH_WITH_CLI=true \
+                RUSTUP_DIST_SERVER="$rust_dist" \
+                RUSTUP_UPDATE_ROOT="$rust_root" \
+                cross build --release --target "$rust_target"
+            return
+            ;;
+    esac
+
     echo "=== Building: $rust_target (via cross with custom Dockerfile) ==="
     cross build --release --target "$rust_target"
 }
@@ -49,6 +75,7 @@ case "${1:-all}" in
         echo "Examples:"
         echo "  $0              # Build all"
         echo "  $0 x86_64       # Build x86_64 only"
+        echo "  CHINAMIRRO=1 $0 arm64  # Build with China mirrors"
         exit 0
         ;;
     *)
@@ -65,16 +92,4 @@ for target in "${ARCH_MAP[@]}"; do
     fi
 done
 echo ""
-echo "Static libraries:"
-for target in "${ARCH_MAP[@]}"; do
-    case "$target" in
-        x86_64-unknown-linux-gnu) gnu_target="x86_64-linux-gnu" ;;
-        aarch64-unknown-linux-gnu) gnu_target="aarch64-linux-gnu" ;;
-        armv7-unknown-linux-gnueabihf) gnu_target="armv7-linux-gnueabihf" ;;
-    esac
-    if [ -d "$PROJECT_DIR/target/one-kvm-libs/$gnu_target/lib" ]; then
-        echo "  $gnu_target: OK"
-    fi
-done
-echo ""
 echo "Next step: ./build/package-docker.sh or ./build/package-deb.sh"

build/cross/Dockerfile.arm64

@@ -1,17 +1,55 @@
-# Cross-compilation image for ARM64 based on Debian 11
-# Build on Debian 11 (GLIBC 2.31) for maximum runtime compatibility
+# Cross-compilation image for ARM64 based on Debian 12
+# Build on Debian 12 (GLIBC 2.36) to match the runtime images
 
-FROM debian:11
+ARG DEBIAN_IMAGE=debian:12
+FROM ${DEBIAN_IMAGE}
 
-# Set Rustup mirrors (Aliyun)
-ENV RUSTUP_UPDATE_ROOT=https://mirrors.aliyun.com/rustup/rustup \
-    RUSTUP_DIST_SERVER=https://mirrors.aliyun.com/rustup
+ARG CHINAMIRRO=0
+ARG GH_PROXY=https://gh-proxy.com/
+ARG RUSTUP_DIST_SERVER_CN=https://mirrors.ustc.edu.cn/rust-static
+ARG RUSTUP_UPDATE_ROOT_CN=https://mirrors.ustc.edu.cn/rust-static/rustup
+ARG CARGO_INDEX_CN=https://mirrors.ustc.edu.cn/crates.io-index
+ARG CARGO_REGISTRY_CN=sparse+https://mirrors.ustc.edu.cn/crates.io-index/
+ARG LIBJPEG_TURBO_VERSION=3.1.4.1
+ARG LIBYUV_REV=957f295ea946cbbd13fcfc46e7066f2efa801233
+ARG LIBVPX_VERSION=1.16.0
+ARG X265_VERSION=3.4
+ARG OPUS_VERSION=1.5.2
+ARG RKMPP_BRANCH=jellyfin-mpp
+ARG RKRGA_BRANCH=jellyfin-rga
+ARG FFMPEG_ROCKCHIP_REV=40c412daccf08164493da0de990eb99a8948116b
+
+# Optionally use China mirrors for builds in China.
+RUN if [ "$CHINAMIRRO" = "1" ]; then \
+        sed -i -E \
+            -e 's@http://deb.debian.org/debian([[:space:]]|$)@http://mirrors.tuna.tsinghua.edu.cn/debian\1@g' \
+            /etc/apt/sources.list.d/debian.sources; \
+    fi
 
 # Install Rust toolchain
 RUN apt-get update && apt-get install -y --no-install-recommends \
     curl \
     ca-certificates \
+    && if [ "$CHINAMIRRO" = "1" ]; then \
+        export RUSTUP_DIST_SERVER=${RUSTUP_DIST_SERVER_CN}; \
+        export RUSTUP_UPDATE_ROOT=${RUSTUP_UPDATE_ROOT_CN}; \
+    fi \
     && curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable \
+    && if [ "$CHINAMIRRO" = "1" ]; then \
+        mkdir -p /root/.cargo; \
+        printf '%s\n' \
+            '[source.crates-io]' \
+            "replace-with = 'cn-mirror-sparse'" \
+            '[source.cn-mirror]' \
+            "registry = '${CARGO_INDEX_CN}'" \
+            '[source.cn-mirror-sparse]' \
+            "registry = '${CARGO_REGISTRY_CN}'" \
+            '[registries.cn-mirror]' \
+            "index = '${CARGO_INDEX_CN}'" \
+            '[net]' \
+            'git-fetch-with-cli = true' \
+            > /root/.cargo/config.toml; \
+    fi \
     && rm -rf /var/lib/apt/lists/*
 
 ENV PATH="/root/.cargo/bin:${PATH}"
@@ -22,6 +60,7 @@ RUN dpkg --add-architecture arm64
 # Install cross-compiler and native build tools
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
+    patch \
     pkg-config \
     cmake \
     nasm \
@@ -31,7 +70,9 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     meson \
     ninja-build \
     wget \
+    xz-utils \
     file \
+    rsync \
     gcc-aarch64-linux-gnu \
     g++-aarch64-linux-gnu \
     libc6-dev-arm64-cross \
@@ -43,20 +84,29 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 
 # Install ARM64 development libraries (without VAAPI/X11 for ARM)
 RUN apt-get update && apt-get install -y --no-install-recommends \
+    libssl3 \
+    libssl3:arm64 \
     libasound2-dev:arm64 \
     libv4l-dev:arm64 \
     libudev-dev:arm64 \
     zlib1g-dev:arm64 \
+    linux-libc-dev:arm64 \
     # Note: libjpeg-turbo, libyuv, libvpx, libx264, libx265, libopus are built from source below for static linking
     libdrm-dev:arm64 \
     && rm -rf /var/lib/apt/lists/*
 
 # Build static libjpeg-turbo from source (cross-compile for ARM64)
-RUN git clone --depth 1 https://github.com/libjpeg-turbo/libjpeg-turbo /tmp/libjpeg-turbo \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init /tmp/libjpeg-turbo \
     && cd /tmp/libjpeg-turbo \
+    && git remote add origin "${github_prefix}https://github.com/libjpeg-turbo/libjpeg-turbo.git" \
+    && git fetch --depth 1 origin "refs/tags/${LIBJPEG_TURBO_VERSION}" \
+    && git checkout --detach FETCH_HEAD \
     && mkdir build && cd build \
     && cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
         -DCMAKE_INSTALL_PREFIX=/usr/aarch64-linux-gnu \
+        -DCMAKE_INSTALL_LIBDIR=lib \
         -DCMAKE_SYSTEM_NAME=Linux \
         -DCMAKE_SYSTEM_PROCESSOR=aarch64 \
         -DCMAKE_C_COMPILER=aarch64-linux-gnu-gcc \
@@ -66,8 +116,13 @@ RUN git clone --depth 1 https://github.com/libjpeg-turbo/libjpeg-turbo /tmp/libj
     && rm -rf /tmp/libjpeg-turbo
 
 # Build static libyuv from source (cross-compile for ARM64)
-RUN git clone --depth 1 https://github.com/lemenkov/libyuv /tmp/libyuv \
+RUN git init /tmp/libyuv \
     && cd /tmp/libyuv \
+    && github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git remote add origin "${github_prefix}https://github.com/lemenkov/libyuv" \
+    && git fetch --depth 1 origin ${LIBYUV_REV} \
+    && git checkout --detach FETCH_HEAD \
     && mkdir build && cd build \
     && cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
         -DCMAKE_INSTALL_PREFIX=/usr/aarch64-linux-gnu \
@@ -75,14 +130,24 @@ RUN git clone --depth 1 https://github.com/lemenkov/libyuv /tmp/libyuv \
         -DCMAKE_SYSTEM_PROCESSOR=aarch64 \
         -DCMAKE_C_COMPILER=aarch64-linux-gnu-gcc \
         -DCMAKE_CXX_COMPILER=aarch64-linux-gnu-g++ \
+        -DJPEG_FOUND=TRUE \
+        -DJPEG_INCLUDE_DIR=/usr/aarch64-linux-gnu/include \
+        -DJPEG_LIBRARY=/usr/aarch64-linux-gnu/lib/libjpeg.a \
+        -DCMAKE_C_FLAGS="-DHAVE_JPEG -I/usr/aarch64-linux-gnu/include" \
+        -DCMAKE_CXX_FLAGS="-DHAVE_JPEG -I/usr/aarch64-linux-gnu/include" \
     && make -j$(nproc) \
     && make install \
     && rm -rf /tmp/libyuv
 
 # Build static libvpx from source (cross-compile for ARM64)
 # CC/CXX/LD/AR must be environment variables, not configure arguments
-RUN git clone --depth 1 https://github.com/webmproject/libvpx /tmp/libvpx \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init /tmp/libvpx \
     && cd /tmp/libvpx \
+    && git remote add origin "${github_prefix}https://github.com/webmproject/libvpx.git" \
+    && git fetch --depth 1 origin "refs/tags/v${LIBVPX_VERSION}" \
+    && git checkout --detach FETCH_HEAD \
     && echo "=== libvpx: Configuring for ARM64 ===" \
     && export CC=aarch64-linux-gnu-gcc \
     && export CXX=aarch64-linux-gnu-g++ \
@@ -105,7 +170,9 @@ RUN git clone --depth 1 https://github.com/webmproject/libvpx /tmp/libvpx \
     && rm -rf /tmp/libvpx
 
 # Build static libx264 from source (cross-compile for ARM64)
-RUN git clone --depth 1 https://code.videolan.org/videolan/x264.git /tmp/x264 \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git clone --depth 1 "${github_prefix}https://github.com/mirror/x264.git" /tmp/x264 \
     && cd /tmp/x264 \
     && export CC=aarch64-linux-gnu-gcc \
     && export AR=aarch64-linux-gnu-ar \
@@ -121,12 +188,18 @@ RUN git clone --depth 1 https://code.videolan.org/videolan/x264.git /tmp/x264 \
     && rm -rf /tmp/x264
 
 # Build static libx265 from source (cross-compile for ARM64)
-RUN git clone --depth 1 https://bitbucket.org/multicoreware/x265_git /tmp/x265 \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init /tmp/x265 \
     && cd /tmp/x265 \
+    && git remote add origin "${github_prefix}https://github.com/videolan/x265.git" \
+    && git fetch --depth 1 origin "refs/tags/${X265_VERSION}" \
+    && git checkout --detach FETCH_HEAD \
     && cd source \
     && mkdir -p build \
     && cd build \
     && cmake .. -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_ASM_NASM_FLAGS="-w-macro-params-legacy" \
         -DCMAKE_INSTALL_PREFIX=/usr/aarch64-linux-gnu \
         -DCMAKE_SYSTEM_NAME=Linux \
         -DCMAKE_SYSTEM_PROCESSOR=aarch64 \
@@ -160,12 +233,15 @@ Cflags: -I\${includedir}
 EOF
 
 # Build static libopus from source (cross-compile for ARM64)
-RUN git clone --depth 1 https://github.com/xiph/opus /tmp/opus \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && wget -O /tmp/opus.tar.gz "${github_prefix}https://github.com/xiph/opus/releases/download/v${OPUS_VERSION}/opus-${OPUS_VERSION}.tar.gz" \
+    && tar -xzf /tmp/opus.tar.gz -C /tmp \
+    && mv "/tmp/opus-${OPUS_VERSION}" /tmp/opus \
     && cd /tmp/opus \
     && export CC=aarch64-linux-gnu-gcc \
     && export AR=aarch64-linux-gnu-ar \
     && export RANLIB=aarch64-linux-gnu-ranlib \
-    && ./autogen.sh \
     && ./configure \
         --prefix=/usr/aarch64-linux-gnu \
         --host=aarch64-linux-gnu \
@@ -173,13 +249,24 @@ RUN git clone --depth 1 https://github.com/xiph/opus /tmp/opus \
         --disable-doc \
     && make -j$(nproc) \
     && make install \
-    && rm -rf /tmp/opus
+    && rm -rf /tmp/opus /tmp/opus.tar.gz
+
+# Reject raw formats smaller than the requested frame before any V4L2 upload.
+COPY build/cross/patches/0001-v4l2-m2m-reject-undersized-encoder-format.patch /tmp/ffmpeg-v4l2-size.patch
 
 # Download and build FFmpeg with RKMPP support
 RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
-    && wget -q https://files.mofeng.run/src/image/other/ffmpeg.tar.gz \
-    && tar -xzf ffmpeg.tar.gz \
-    && cd ffmpeg \
+    && github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git clone --depth 1 --branch ${RKMPP_BRANCH} "${github_prefix}https://github.com/nyanmisaka/mpp.git" rkmpp \
+    && git clone --depth 1 --branch ${RKRGA_BRANCH} "${github_prefix}https://github.com/nyanmisaka/rk-mirrors.git" rkrga \
+    && git init ffmpeg-rockchip \
+    && cd ffmpeg-rockchip \
+    && git remote add origin "${github_prefix}https://github.com/nyanmisaka/ffmpeg-rockchip.git" \
+    && git fetch --depth 1 origin ${FFMPEG_ROCKCHIP_REV} \
+    && git checkout --detach FETCH_HEAD \
+    && patch -p1 < /tmp/ffmpeg-v4l2-size.patch \
+    && cd .. \
     # Build RKMPP
     && mkdir -p rkmpp/build && cd rkmpp/build \
     && cmake .. \
@@ -194,6 +281,7 @@ RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
     && make -j$(nproc) \
     && make install \
     && sed -i 's/^Libs:.*$/& -lstdc++ -lm -lpthread/' /usr/aarch64-linux-gnu/lib/pkgconfig/rockchip_mpp.pc \
+    && rm -f /usr/aarch64-linux-gnu/lib/librockchip_mpp.so* \
     && cd ../.. \
     # Build RKRGA - create cross file for meson
     && echo '[binaries]' > /tmp/aarch64-cross.txt \
@@ -221,6 +309,7 @@ RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
     && ar rcs /usr/aarch64-linux-gnu/lib/librga.a $(find build -name '*.o') \
     && ranlib /usr/aarch64-linux-gnu/lib/librga.a \
     && sed -i 's/^Libs:.*$/& -lstdc++ -lm -lpthread/' /usr/aarch64-linux-gnu/lib/pkgconfig/librga.pc \
+    && rm -f /usr/aarch64-linux-gnu/lib/librga.so* \
     && cd .. \
     # Create pkg-config wrapper for cross-compilation
     && echo '#!/bin/sh' > /tmp/aarch64-pkg-config \
@@ -309,7 +398,11 @@ RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
     && rm -rf /tmp/ffmpeg-build /tmp/aarch64-cross.txt /tmp/aarch64-pkg-config
 
 # Add Rust target
-RUN rustup target add aarch64-unknown-linux-gnu
+RUN if [ "$CHINAMIRRO" = "1" ]; then \
+        export RUSTUP_DIST_SERVER=${RUSTUP_DIST_SERVER_CN}; \
+        export RUSTUP_UPDATE_ROOT=${RUSTUP_UPDATE_ROOT_CN}; \
+    fi \
+    && rustup target add aarch64-unknown-linux-gnu
 
 # Configure environment for cross-compilation
 ENV CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc \
@@ -323,4 +416,4 @@ ENV CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc \
     LIBYUV_STATIC=1 \
     OPUS_STATIC=1 \
     PKG_CONFIG_ALL_STATIC=1 \
-    RUSTFLAGS="-C linker=aarch64-linux-gnu-gcc"
+    RUSTFLAGS="-C linker=aarch64-linux-gnu-gcc -C link-arg=-Wl,--allow-multiple-definition"

build/cross/Dockerfile.armv7

@@ -1,17 +1,55 @@
-# Cross-compilation image for ARMv7 based on Debian 11
-# Build on Debian 11 (GLIBC 2.31) for maximum runtime compatibility
+# Cross-compilation image for ARMv7 based on Debian 12
+# Build on Debian 12 (GLIBC 2.36) to match the runtime images
 
-FROM debian:11
+ARG DEBIAN_IMAGE=debian:12
+FROM ${DEBIAN_IMAGE}
 
-# Set Rustup mirrors (Aliyun)
-ENV RUSTUP_UPDATE_ROOT=https://mirrors.aliyun.com/rustup/rustup \
-    RUSTUP_DIST_SERVER=https://mirrors.aliyun.com/rustup
+ARG CHINAMIRRO=0
+ARG GH_PROXY=https://gh-proxy.com/
+ARG RUSTUP_DIST_SERVER_CN=https://mirrors.ustc.edu.cn/rust-static
+ARG RUSTUP_UPDATE_ROOT_CN=https://mirrors.ustc.edu.cn/rust-static/rustup
+ARG CARGO_INDEX_CN=https://mirrors.ustc.edu.cn/crates.io-index
+ARG CARGO_REGISTRY_CN=sparse+https://mirrors.ustc.edu.cn/crates.io-index/
+ARG LIBJPEG_TURBO_VERSION=3.1.4.1
+ARG LIBYUV_REV=957f295ea946cbbd13fcfc46e7066f2efa801233
+ARG LIBVPX_VERSION=1.16.0
+ARG X265_VERSION=3.4
+ARG OPUS_VERSION=1.5.2
+ARG RKMPP_BRANCH=jellyfin-mpp
+ARG RKRGA_BRANCH=jellyfin-rga
+ARG FFMPEG_ROCKCHIP_REV=40c412daccf08164493da0de990eb99a8948116b
+
+# Optionally use China mirrors for builds in China.
+RUN if [ "$CHINAMIRRO" = "1" ]; then \
+        sed -i -E \
+            -e 's@http://deb.debian.org/debian([[:space:]]|$)@http://mirrors.tuna.tsinghua.edu.cn/debian\1@g' \
+            /etc/apt/sources.list.d/debian.sources; \
+    fi
 
 # Install Rust toolchain
 RUN apt-get update && apt-get install -y --no-install-recommends \
     curl \
     ca-certificates \
+    && if [ "$CHINAMIRRO" = "1" ]; then \
+        export RUSTUP_DIST_SERVER=${RUSTUP_DIST_SERVER_CN}; \
+        export RUSTUP_UPDATE_ROOT=${RUSTUP_UPDATE_ROOT_CN}; \
+    fi \
     && curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable \
+    && if [ "$CHINAMIRRO" = "1" ]; then \
+        mkdir -p /root/.cargo; \
+        printf '%s\n' \
+            '[source.crates-io]' \
+            "replace-with = 'cn-mirror-sparse'" \
+            '[source.cn-mirror]' \
+            "registry = '${CARGO_INDEX_CN}'" \
+            '[source.cn-mirror-sparse]' \
+            "registry = '${CARGO_REGISTRY_CN}'" \
+            '[registries.cn-mirror]' \
+            "index = '${CARGO_INDEX_CN}'" \
+            '[net]' \
+            'git-fetch-with-cli = true' \
+            > /root/.cargo/config.toml; \
+    fi \
     && rm -rf /var/lib/apt/lists/*
 
 ENV PATH="/root/.cargo/bin:${PATH}"
@@ -22,6 +60,7 @@ RUN dpkg --add-architecture armhf
 # Install cross-compiler and native build tools
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
+    patch \
     pkg-config \
     cmake \
     nasm \
@@ -31,7 +70,9 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     meson \
     ninja-build \
     wget \
+    xz-utils \
     file \
+    rsync \
     gcc-arm-linux-gnueabihf \
     g++-arm-linux-gnueabihf \
     libc6-dev-armhf-cross \
@@ -43,19 +84,28 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 
 # Install ARMv7 development libraries (without VAAPI/X11 for ARM)
 RUN apt-get update && apt-get install -y --no-install-recommends \
+    libssl3 \
+    libssl3:armhf \
     libasound2-dev:armhf \
     libv4l-dev:armhf \
     libudev-dev:armhf \
+    linux-libc-dev:armhf \
     zlib1g-dev:armhf \
     libdrm-dev:armhf \
     && rm -rf /var/lib/apt/lists/*
 
 # Build static libjpeg-turbo from source (cross-compile for ARMv7)
-RUN git clone --depth 1 https://github.com/libjpeg-turbo/libjpeg-turbo /tmp/libjpeg-turbo \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init /tmp/libjpeg-turbo \
     && cd /tmp/libjpeg-turbo \
+    && git remote add origin "${github_prefix}https://github.com/libjpeg-turbo/libjpeg-turbo.git" \
+    && git fetch --depth 1 origin "refs/tags/${LIBJPEG_TURBO_VERSION}" \
+    && git checkout --detach FETCH_HEAD \
     && mkdir build && cd build \
     && cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
         -DCMAKE_INSTALL_PREFIX=/usr/arm-linux-gnueabihf \
+        -DCMAKE_INSTALL_LIBDIR=lib \
         -DCMAKE_SYSTEM_NAME=Linux \
         -DCMAKE_SYSTEM_PROCESSOR=arm \
         -DCMAKE_C_COMPILER=arm-linux-gnueabihf-gcc \
@@ -65,8 +115,13 @@ RUN git clone --depth 1 https://github.com/libjpeg-turbo/libjpeg-turbo /tmp/libj
     && rm -rf /tmp/libjpeg-turbo
 
 # Build static libyuv from source (cross-compile for ARMv7)
-RUN git clone --depth 1 https://github.com/lemenkov/libyuv /tmp/libyuv \
+RUN git init /tmp/libyuv \
     && cd /tmp/libyuv \
+    && github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git remote add origin "${github_prefix}https://github.com/lemenkov/libyuv" \
+    && git fetch --depth 1 origin ${LIBYUV_REV} \
+    && git checkout --detach FETCH_HEAD \
     && mkdir build && cd build \
     && cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
         -DCMAKE_INSTALL_PREFIX=/usr/arm-linux-gnueabihf \
@@ -74,13 +129,23 @@ RUN git clone --depth 1 https://github.com/lemenkov/libyuv /tmp/libyuv \
         -DCMAKE_SYSTEM_PROCESSOR=arm \
         -DCMAKE_C_COMPILER=arm-linux-gnueabihf-gcc \
         -DCMAKE_CXX_COMPILER=arm-linux-gnueabihf-g++ \
+        -DJPEG_FOUND=TRUE \
+        -DJPEG_INCLUDE_DIR=/usr/arm-linux-gnueabihf/include \
+        -DJPEG_LIBRARY=/usr/arm-linux-gnueabihf/lib/libjpeg.a \
+        -DCMAKE_C_FLAGS="-DHAVE_JPEG -I/usr/arm-linux-gnueabihf/include" \
+        -DCMAKE_CXX_FLAGS="-DHAVE_JPEG -I/usr/arm-linux-gnueabihf/include" \
     && make -j$(nproc) \
     && make install \
     && rm -rf /tmp/libyuv
 
 # Build static libvpx from source (cross-compile for ARMv7)
-RUN git clone --depth 1 https://github.com/webmproject/libvpx /tmp/libvpx \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init /tmp/libvpx \
     && cd /tmp/libvpx \
+    && git remote add origin "${github_prefix}https://github.com/webmproject/libvpx.git" \
+    && git fetch --depth 1 origin "refs/tags/v${LIBVPX_VERSION}" \
+    && git checkout --detach FETCH_HEAD \
     && export CC=arm-linux-gnueabihf-gcc \
     && export CXX=arm-linux-gnueabihf-g++ \
     && export LD=arm-linux-gnueabihf-ld \
@@ -97,7 +162,9 @@ RUN git clone --depth 1 https://github.com/webmproject/libvpx /tmp/libvpx \
     && rm -rf /tmp/libvpx
 
 # Build static libx264 from source (cross-compile for ARMv7)
-RUN git clone --depth 1 https://code.videolan.org/videolan/x264.git /tmp/x264 \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git clone --depth 1 "${github_prefix}https://github.com/mirror/x264.git" /tmp/x264 \
     && cd /tmp/x264 \
     && export CC=arm-linux-gnueabihf-gcc \
     && export AR=arm-linux-gnueabihf-ar \
@@ -114,12 +181,18 @@ RUN git clone --depth 1 https://code.videolan.org/videolan/x264.git /tmp/x264 \
     && rm -rf /tmp/x264
 
 # Build static libx265 from source (cross-compile for ARMv7)
-RUN git clone --depth 1 https://bitbucket.org/multicoreware/x265_git /tmp/x265 \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init /tmp/x265 \
     && cd /tmp/x265 \
+    && git remote add origin "${github_prefix}https://github.com/videolan/x265.git" \
+    && git fetch --depth 1 origin "refs/tags/${X265_VERSION}" \
+    && git checkout --detach FETCH_HEAD \
     && cd source \
     && mkdir -p build \
     && cd build \
     && cmake .. -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_ASM_NASM_FLAGS="-w-macro-params-legacy" \
         -DCMAKE_INSTALL_PREFIX=/usr/arm-linux-gnueabihf \
         -DCMAKE_SYSTEM_NAME=Linux \
         -DCMAKE_SYSTEM_PROCESSOR=arm \
@@ -149,12 +222,15 @@ Cflags: -I\${includedir}
 EOF
 
 # Build static libopus from source (cross-compile for ARMv7)
-RUN git clone --depth 1 https://github.com/xiph/opus /tmp/opus \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && wget -O /tmp/opus.tar.gz "${github_prefix}https://github.com/xiph/opus/releases/download/v${OPUS_VERSION}/opus-${OPUS_VERSION}.tar.gz" \
+    && tar -xzf /tmp/opus.tar.gz -C /tmp \
+    && mv "/tmp/opus-${OPUS_VERSION}" /tmp/opus \
     && cd /tmp/opus \
     && export CC=arm-linux-gnueabihf-gcc \
     && export AR=arm-linux-gnueabihf-ar \
     && export RANLIB=arm-linux-gnueabihf-ranlib \
-    && ./autogen.sh \
     && ./configure \
         --prefix=/usr/arm-linux-gnueabihf \
         --host=arm-linux-gnueabihf \
@@ -162,13 +238,24 @@ RUN git clone --depth 1 https://github.com/xiph/opus /tmp/opus \
         --disable-doc \
     && make -j$(nproc) \
     && make install \
-    && rm -rf /tmp/opus
+    && rm -rf /tmp/opus /tmp/opus.tar.gz
+
+# Reject raw formats smaller than the requested frame before any V4L2 upload.
+COPY build/cross/patches/0001-v4l2-m2m-reject-undersized-encoder-format.patch /tmp/ffmpeg-v4l2-size.patch
 
 # Download and build FFmpeg with RKMPP support
 RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
-    && wget -q https://files.mofeng.run/src/image/other/ffmpeg.tar.gz \
-    && tar -xzf ffmpeg.tar.gz \
-    && cd ffmpeg \
+    && github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git clone --depth 1 --branch ${RKMPP_BRANCH} "${github_prefix}https://github.com/nyanmisaka/mpp.git" rkmpp \
+    && git clone --depth 1 --branch ${RKRGA_BRANCH} "${github_prefix}https://github.com/nyanmisaka/rk-mirrors.git" rkrga \
+    && git init ffmpeg-rockchip \
+    && cd ffmpeg-rockchip \
+    && git remote add origin "${github_prefix}https://github.com/nyanmisaka/ffmpeg-rockchip.git" \
+    && git fetch --depth 1 origin ${FFMPEG_ROCKCHIP_REV} \
+    && git checkout --detach FETCH_HEAD \
+    && patch -p1 < /tmp/ffmpeg-v4l2-size.patch \
+    && cd .. \
     # Build RKMPP
     && mkdir -p rkmpp/build && cd rkmpp/build \
     && cmake .. \
@@ -183,6 +270,7 @@ RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
     && make -j$(nproc) \
     && make install \
     && sed -i 's/^Libs:.*$/& -lstdc++ -lm -lpthread/' /usr/arm-linux-gnueabihf/lib/pkgconfig/rockchip_mpp.pc \
+    && rm -f /usr/arm-linux-gnueabihf/lib/librockchip_mpp.so* \
     && cd ../.. \
     # Build RKRGA - create cross file for meson
     && echo '[binaries]' > /tmp/armhf-cross.txt \
@@ -210,6 +298,7 @@ RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
     && ar rcs /usr/arm-linux-gnueabihf/lib/librga.a $(find build -name '*.o') \
     && ranlib /usr/arm-linux-gnueabihf/lib/librga.a \
     && sed -i 's/^Libs:.*$/& -lstdc++ -lm -lpthread/' /usr/arm-linux-gnueabihf/lib/pkgconfig/librga.pc \
+    && rm -f /usr/arm-linux-gnueabihf/lib/librga.so* \
     && cd .. \
     # Create pkg-config wrapper for cross-compilation
     && echo '#!/bin/sh' > /tmp/armhf-pkg-config \
@@ -298,7 +387,11 @@ RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
     && rm -rf /tmp/ffmpeg-build /tmp/armhf-cross.txt /tmp/armhf-pkg-config
 
 # Add Rust target
-RUN rustup target add armv7-unknown-linux-gnueabihf
+RUN if [ "$CHINAMIRRO" = "1" ]; then \
+        export RUSTUP_DIST_SERVER=${RUSTUP_DIST_SERVER_CN}; \
+        export RUSTUP_UPDATE_ROOT=${RUSTUP_UPDATE_ROOT_CN}; \
+    fi \
+    && rustup target add armv7-unknown-linux-gnueabihf
 
 # Configure environment for cross-compilation
 ENV CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc \
@@ -312,7 +405,7 @@ ENV CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc \
     LIBYUV_STATIC=1 \
     OPUS_STATIC=1 \
     PKG_CONFIG_ALL_STATIC=1 \
-    RUSTFLAGS="-C linker=arm-linux-gnueabihf-gcc"
+    RUSTFLAGS="-C linker=arm-linux-gnueabihf-gcc -C link-arg=-Wl,--allow-multiple-definition"
 
 # Default command
 CMD ["bash"]

build/cross/Dockerfile.x86_64

@@ -1,17 +1,53 @@
-# Cross-compilation image for x86_64 based on Debian 11
-# Build on Debian 11 (GLIBC 2.31) for maximum runtime compatibility
+# Cross-compilation image for x86_64 based on Debian 12
+# Build on Debian 12 (GLIBC 2.36) to match the runtime images
 
-FROM debian:11
+ARG DEBIAN_IMAGE=debian:12
+FROM ${DEBIAN_IMAGE}
 
-# Set Rustup mirrors (Aliyun)
-ENV RUSTUP_UPDATE_ROOT=https://mirrors.aliyun.com/rustup/rustup \
-    RUSTUP_DIST_SERVER=https://mirrors.aliyun.com/rustup
+ARG CHINAMIRRO=0
+ARG GH_PROXY=https://gh-proxy.com/
+ARG RUSTUP_DIST_SERVER_CN=https://mirrors.ustc.edu.cn/rust-static
+ARG RUSTUP_UPDATE_ROOT_CN=https://mirrors.ustc.edu.cn/rust-static/rustup
+ARG CARGO_INDEX_CN=https://mirrors.ustc.edu.cn/crates.io-index
+ARG CARGO_REGISTRY_CN=sparse+https://mirrors.ustc.edu.cn/crates.io-index/
+ARG LIBJPEG_TURBO_VERSION=3.1.4.1
+ARG LIBYUV_REV=957f295ea946cbbd13fcfc46e7066f2efa801233
+ARG LIBVPX_VERSION=1.16.0
+ARG X265_VERSION=3.4
+ARG OPUS_VERSION=1.5.2
+ARG FFMPEG_ROCKCHIP_REV=40c412daccf08164493da0de990eb99a8948116b
+
+# Optionally use China mirrors for builds in China.
+RUN if [ "$CHINAMIRRO" = "1" ]; then \
+        sed -i -E \
+            -e 's@http://deb.debian.org/debian([[:space:]]|$)@http://mirrors.tuna.tsinghua.edu.cn/debian\1@g' \
+            /etc/apt/sources.list.d/debian.sources; \
+    fi
 
 # Install Rust toolchain
 RUN apt-get update && apt-get install -y --no-install-recommends \
     curl \
     ca-certificates \
+    && if [ "$CHINAMIRRO" = "1" ]; then \
+        export RUSTUP_DIST_SERVER=${RUSTUP_DIST_SERVER_CN}; \
+        export RUSTUP_UPDATE_ROOT=${RUSTUP_UPDATE_ROOT_CN}; \
+    fi \
     && curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable \
+    && if [ "$CHINAMIRRO" = "1" ]; then \
+        mkdir -p /root/.cargo; \
+        printf '%s\n' \
+            '[source.crates-io]' \
+            "replace-with = 'cn-mirror-sparse'" \
+            '[source.cn-mirror]' \
+            "registry = '${CARGO_INDEX_CN}'" \
+            '[source.cn-mirror-sparse]' \
+            "registry = '${CARGO_REGISTRY_CN}'" \
+            '[registries.cn-mirror]' \
+            "index = '${CARGO_INDEX_CN}'" \
+            '[net]' \
+            'git-fetch-with-cli = true' \
+            > /root/.cargo/config.toml; \
+    fi \
     && rm -rf /var/lib/apt/lists/*
 
 ENV PATH="/root/.cargo/bin:${PATH}"
@@ -29,6 +65,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libclang-dev \
     llvm \
     wget \
+    xz-utils \
+    rsync \
     # Autotools for libopus (requires autoreconf)
     autoconf \
     automake \
@@ -37,6 +75,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libasound2-dev \
     libv4l-dev \
     libudev-dev \
+    linux-libc-dev \
     zlib1g-dev \
     # Note: libjpeg-turbo, libx264, libx265, libopus are built from source below for static linking
     libva-dev \
@@ -50,36 +89,61 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     && rm -rf /var/lib/apt/lists/*
 
 # Build static libjpeg-turbo from source (needed by libyuv)
-RUN git clone --depth 1 https://github.com/libjpeg-turbo/libjpeg-turbo /tmp/libjpeg-turbo \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init /tmp/libjpeg-turbo \
     && cd /tmp/libjpeg-turbo \
+    && git remote add origin "${github_prefix}https://github.com/libjpeg-turbo/libjpeg-turbo.git" \
+    && git fetch --depth 1 origin "refs/tags/${LIBJPEG_TURBO_VERSION}" \
+    && git checkout --detach FETCH_HEAD \
     && mkdir build && cd build \
     && cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
+        -DCMAKE_INSTALL_PREFIX=/usr/local \
+        -DCMAKE_INSTALL_LIBDIR=lib \
         -DENABLE_SHARED=OFF -DENABLE_STATIC=ON \
     && make -j$(nproc) \
     && make install \
     && rm -rf /tmp/libjpeg-turbo
 
 # Build static libyuv from source (uses libjpeg-turbo headers)
-RUN git clone --depth 1 https://github.com/lemenkov/libyuv /tmp/libyuv \
+RUN git init /tmp/libyuv \
     && cd /tmp/libyuv \
+    && github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git remote add origin "${github_prefix}https://github.com/lemenkov/libyuv" \
+    && git fetch --depth 1 origin ${LIBYUV_REV} \
+    && git checkout --detach FETCH_HEAD \
     && mkdir build && cd build \
     && cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
+        -DJPEG_FOUND=TRUE \
+        -DJPEG_INCLUDE_DIR=/usr/local/include \
+        -DJPEG_LIBRARY=/usr/local/lib/libjpeg.a \
+        -DCMAKE_C_FLAGS="-DHAVE_JPEG -I/usr/local/include" \
+        -DCMAKE_CXX_FLAGS="-DHAVE_JPEG -I/usr/local/include" \
     && make -j$(nproc) \
     && make install \
     && rm -rf /tmp/libyuv
 
 # Build static libvpx from source
-RUN git clone --depth 1 https://github.com/webmproject/libvpx /tmp/libvpx \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init /tmp/libvpx \
     && cd /tmp/libvpx \
+    && git remote add origin "${github_prefix}https://github.com/webmproject/libvpx.git" \
+    && git fetch --depth 1 origin "refs/tags/v${LIBVPX_VERSION}" \
+    && git checkout --detach FETCH_HEAD \
     && ./configure \
         --enable-static --disable-shared --enable-pic \
         --disable-examples --disable-tools --disable-docs \
+        --disable-unit-tests \
     && make -j$(nproc) \
     && make install \
     && rm -rf /tmp/libvpx
 
 # Build static libx264 from source
-RUN git clone --depth 1 https://code.videolan.org/videolan/x264.git /tmp/x264 \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git clone --depth 1 "${github_prefix}https://github.com/mirror/x264.git" /tmp/x264 \
     && cd /tmp/x264 \
     && ./configure --enable-static --disable-cli \
     && make -j$(nproc) \
@@ -87,12 +151,18 @@ RUN git clone --depth 1 https://code.videolan.org/videolan/x264.git /tmp/x264 \
     && rm -rf /tmp/x264
 
 # Build static libx265 from source
-RUN git clone --depth 1 https://bitbucket.org/multicoreware/x265_git /tmp/x265 \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init /tmp/x265 \
     && cd /tmp/x265 \
+    && git remote add origin "${github_prefix}https://github.com/videolan/x265.git" \
+    && git fetch --depth 1 origin "refs/tags/${X265_VERSION}" \
+    && git checkout --detach FETCH_HEAD \
     && cd source \
     && mkdir -p build \
     && cd build \
     && cmake .. -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_ASM_NASM_FLAGS="-w-macro-params-legacy" \
         -DENABLE_SHARED=OFF \
         -DENABLE_CLI=OFF \
         -DBUILD_SHARED_LIBS=OFF \
@@ -117,21 +187,28 @@ Cflags: -I\${includedir}
 EOF
 
 # Build static libopus from source
-RUN git clone --depth 1 https://github.com/xiph/opus /tmp/opus \
+RUN github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && wget -O /tmp/opus.tar.gz "${github_prefix}https://github.com/xiph/opus/releases/download/v${OPUS_VERSION}/opus-${OPUS_VERSION}.tar.gz" \
+    && tar -xzf /tmp/opus.tar.gz -C /tmp \
+    && mv "/tmp/opus-${OPUS_VERSION}" /tmp/opus \
     && cd /tmp/opus \
-    && ./autogen.sh \
     && ./configure \
         --enable-static --disable-shared \
         --disable-doc \
     && make -j$(nproc) \
     && make install \
-    && rm -rf /tmp/opus
+    && rm -rf /tmp/opus /tmp/opus.tar.gz
 
 # Download and build FFmpeg with minimal configuration for encoding only
 RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
-    && wget -q https://files.mofeng.run/src/image/other/ffmpeg.tar.gz \
-    && tar -xzf ffmpeg.tar.gz \
-    && cd ffmpeg/ffmpeg-rockchip \
+    && github_prefix="" \
+    && if [ "$CHINAMIRRO" = "1" ]; then github_prefix="${GH_PROXY%/}/"; fi \
+    && git init ffmpeg-rockchip \
+    && cd ffmpeg-rockchip \
+    && git remote add origin "${github_prefix}https://github.com/nyanmisaka/ffmpeg-rockchip.git" \
+    && git fetch --depth 1 origin ${FFMPEG_ROCKCHIP_REV} \
+    && git checkout --detach FETCH_HEAD \
     && ./configure \
         --enable-gpl \
         --enable-version3 \
@@ -203,9 +280,13 @@ RUN mkdir -p /tmp/ffmpeg-build && cd /tmp/ffmpeg-build \
     && rm -rf /tmp/ffmpeg-build
 
 # Add Rust target
-RUN rustup target add x86_64-unknown-linux-gnu
+RUN if [ "$CHINAMIRRO" = "1" ]; then \
+        export RUSTUP_DIST_SERVER=${RUSTUP_DIST_SERVER_CN}; \
+        export RUSTUP_UPDATE_ROOT=${RUSTUP_UPDATE_ROOT_CN}; \
+    fi \
+    && rustup target add x86_64-unknown-linux-gnu
 
 # Configure environment for static linking
 ENV PKG_CONFIG_ALLOW_CROSS=1\
     FFMPEG_STATIC=1 \
-    LIBYUV_STATIC=1
+    LIBYUV_STATIC=1

build/cross/patches/0001-v4l2-m2m-reject-undersized-encoder-format.patch

@@ -0,0 +1,36 @@
+--- a/libavcodec/v4l2_m2m_enc.c
++++ b/libavcodec/v4l2_m2m_enc.c
+@@ -338,6 +338,7 @@
+     V4L2m2mPriv *priv = avctx->priv_data;
+     enum AVPixelFormat pix_fmt_output;
+     uint32_t v4l2_fmt_output;
++    unsigned int output_width, output_height;
+     int ret;
+ 
+     ret = ff_v4l2_m2m_create_context(priv, &s);
+@@ -370,6 +371,25 @@
+         v4l2_fmt_output = output->format.fmt.pix_mp.pixelformat;
+     else
+         v4l2_fmt_output = output->format.fmt.pix.pixelformat;
++
++    /* Drivers may clamp the requested raw format to their supported size.
++     * The software-frame upload still uses avctx/frame dimensions, so a
++     * smaller negotiated format would overrun the mapped output buffers.
++     * Allow upward alignment, but reject frames that do not fit.
++     */
++    if (V4L2_TYPE_IS_MULTIPLANAR(output->type)) {
++        output_width  = output->format.fmt.pix_mp.width;
++        output_height = output->format.fmt.pix_mp.height;
++    } else {
++        output_width  = output->format.fmt.pix.width;
++        output_height = output->format.fmt.pix.height;
++    }
++    if (output_width < avctx->width || output_height < avctx->height) {
++        av_log(avctx, AV_LOG_ERROR,
++               "Encoder cannot fit requested %dx%d frame in negotiated %ux%u format\n",
++               avctx->width, avctx->height, output_width, output_height);
++        return AVERROR(EINVAL);
++    }
+ 
+     pix_fmt_output = ff_v4l2_format_v4l2_to_avfmt(v4l2_fmt_output, AV_CODEC_ID_RAWVIDEO);
+     if (pix_fmt_output != avctx->pix_fmt) {

build/debian/control.tpl

@@ -6,6 +6,7 @@ Maintainer: SilentWind <admin@mofeng.run>
 Package: one-kvm
 Architecture: {arch}
 Depends: ${{auto}}, ca-certificates{distsuffix}
+Recommends: bluez
 Description: A open and lightweight IP-KVM solution written in Rust
  Enables BIOS-level remote management of servers and workstations.
  .
@@ -17,6 +18,7 @@ Description: A open and lightweight IP-KVM solution written in Rust
   * Hardware-accelerated video encoding (VAAPI, QSV, RKMPP)
   * WebRTC and MJPEG streaming with low latency
   * USB HID emulation via OTG gadget
+  * Classic Bluetooth keyboard and mouse via BlueZ
   * Mass storage device for ISO/IMG mounting
   * ATX power control via GPIO or USB relay
 Homepage: https://github.com/mofeng-git/One-KVM

build/debian/copyright

@@ -1,16 +1,130 @@
 Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Upstream-Name: one-kvm
-Source: https://github.com/mofeng-git/one-KVM
+Upstream-Contact: https://github.com/mofeng-git/One-KVM/issues
+Source: https://github.com/mofeng-git/One-KVM
 
 Files: *
 Copyright: 2025 One-KVM contributors
-License: GPL-2.0
+License: AGPL-3.0-only
+
+Files: protos/*
+Copyright: the RustDesk contributors
+           2025 One-KVM contributors
+License: AGPL-3.0-only
+Comment:
+ Protocol definition files derived from RustDesk
+ (https://github.com/rustdesk/rustdesk). Modified for One-KVM.
+ See protos/NOTICE for the full attribution.
+
+Files: src/rustdesk/*
+Copyright: the RustDesk contributors
+           2025 One-KVM contributors
+License: AGPL-3.0-only
+Comment:
+ Code derived from the RustDesk project, modified for One-KVM.
+ See src/rustdesk/NOTICE for the full attribution.
+
+Files: libs/hwcodec/*
+Copyright: the RustDesk contributors
+           2025 One-KVM contributors
+License: AGPL-3.0-only
+Comment:
+ Derived from the RustDesk hwcodec component. See libs/hwcodec/NOTICE.
+
+Files: libs/v4l2r/*
+Copyright: 2023-2024 Andrei Lytkin, Daniel Almeida, Collabora Ltd. and other v4l2r contributors
+License: Expat
 
 Files: libs/ventoy-img-rs/resources/*
 Copyright: Ventoy contributors
-License: GPL-2.0
+License: GPL-3.0+
+Comment:
+ Pre-built Ventoy boot files (boot.img, core.img.xz, ventoy.disk.img.xz).
+ Ventoy upstream: https://github.com/ventoy/Ventoy, licensed GPL-3.0-or-later.
 
-License: GPL-2.0
+Files: res/vcpkg/libyuv/*
+Copyright: The LibYuv Project Authors
+License: BSD-3-Clause
+
+Files: third-party/ffmpeg
+Copyright: FFmpeg developers and contributors
+License: GPL-2.0+
+Comment:
+ FFmpeg is built with --enable-gpl --enable-version3 and linked against
+ x264/x265; the resulting build is GPL-compatible with the AGPL-3.0 main
+ program. Upstream: https://ffmpeg.org/
+ The Linux builds use nyanmisaka/ffmpeg-rockchip at the commit pinned by
+ FFMPEG_ROCKCHIP_REV in build/cross/Dockerfile.*.
+
+Files: third-party/x264
+Copyright: x264 LLC and x264 contributors
+License: GPL-2.0+
+Comment: Upstream: https://www.videolan.org/developers/x264.html
+
+Files: third-party/x265
+Copyright: MulticoreWare, Inc. and x265 contributors
+License: GPL-2.0+
+Comment: Upstream: https://www.x265.org/
+
+Files: third-party/libvpx
+Copyright: The WebM Project authors
+License: BSD-3-Clause
+Comment: Upstream: https://www.webmproject.org/code/
+
+Files: third-party/libopus
+Copyright: Opus contributors
+License: BSD-3-Clause
+Comment: Upstream: https://opus-codec.org/
+
+Files: third-party/libjpeg-turbo
+Copyright: D. R. Commander and other libjpeg-turbo contributors
+License: BSD-3-Clause
+Comment: Upstream: https://libjpeg-turbo.org/
+
+Files: third-party/libsodium
+Copyright: 2013-2025 Frank Denis
+License: Expat
+Comment: Upstream: https://libsodium.gitbook.io/
+
+Files: third-party/sqlite
+Copyright: 1994-2010 Hipp, Wyrick & Company, Inc.
+License: SQLite-public-domain
+Comment: Upstream: https://www.sqlite.org/
+
+License: AGPL-3.0-only
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License.
+ .
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU Affero General Public License for more details.
+ .
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ .
+ On Debian systems, the full text of the GNU Affero General Public License
+ version 3 can be found in the file `/usr/share/common-licenses/AGPL-3'.
+
+License: GPL-3.0+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+ .
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ .
+ You should have received a copy of the GNU General Public License
+ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ .
+ On Debian systems, the full text of the GNU General Public License
+ version 3 can be found in the file `/usr/share/common-licenses/GPL-3'.
+
+License: GPL-2.0+
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 2 of the License, or
@@ -22,8 +136,61 @@ License: GPL-2.0
  GNU General Public License for more details.
  .
  You should have received a copy of the GNU General Public License
- along with this program.  If not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ .
+ On Debian systems, the full text of the GNU General Public License
+ version 2 can be found in the file `/usr/share/common-licenses/GPL-2'.
 
-On Debian systems, the full text of the GNU General Public License
-version 2 can be found in the file `/usr/share/common-licenses/GPL-2'.
+License: Expat
+ Permission is hereby granted, free of charge, to any person obtaining a
+ copy of this software and associated documentation files (the "Software"),
+ to deal in the Software without restriction, including without limitation
+ the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ and/or sell copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following conditions:
+ .
+ The above copyright notice and this permission notice shall be included
+ in all copies or substantial portions of the Software.
+ .
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ DEALINGS IN THE SOFTWARE.
+
+License: BSD-3-Clause
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ .
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ .
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ .
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+ .
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+License: SQLite-public-domain
+ The author disclaims copyright to this source code.  In place of a legal
+ notice, here is a blessing:
+ .
+ May you do good and not evil.
+ May you find forgiveness for yourself and understand yourself.
+ May you share freely, never taking more than you give.

build/init.sh

@@ -4,6 +4,68 @@
 
 set -e
 
+detect_intel_libva_driver() {
+    if [ -n "${LIBVA_DRIVER_NAME:-}" ]; then
+        echo "[INFO] Using preconfigured LIBVA_DRIVER_NAME=$LIBVA_DRIVER_NAME"
+        return
+    fi
+
+    if [ "$(uname -m)" != "x86_64" ]; then
+        return
+    fi
+
+    local devices=()
+    if [ -n "${LIBVA_DEVICE:-}" ]; then
+        devices=("$LIBVA_DEVICE")
+    else
+        shopt -s nullglob
+        devices=(/dev/dri/renderD*)
+        shopt -u nullglob
+    fi
+
+    if [ ${#devices[@]} -eq 0 ]; then
+        return
+    fi
+
+    local device=""
+    local node=""
+    local vendor=""
+    local driver=""
+
+    for device in "${devices[@]}"; do
+        if [ ! -e "$device" ]; then
+            continue
+        fi
+
+        node="$(basename "$device")"
+        vendor=""
+        if [ -r "/sys/class/drm/$node/device/vendor" ]; then
+            vendor="$(cat "/sys/class/drm/$node/device/vendor")"
+        fi
+
+        if [ -n "$vendor" ] && [ "$vendor" != "0x8086" ]; then
+            echo "[INFO] Skipping VA-API probe for $device (vendor=$vendor)"
+            continue
+        fi
+
+        for driver in iHD i965; do
+            if LIBVA_DRIVER_NAME="$driver" vainfo --display drm --device "$device" >/dev/null 2>&1; then
+                export LIBVA_DRIVER_NAME="$driver"
+                if [ -n "$vendor" ]; then
+                    echo "[INFO] Detected Intel VA-API driver '$driver' on $device (vendor=$vendor)"
+                else
+                    echo "[INFO] Detected Intel VA-API driver '$driver' on $device"
+                fi
+                return
+            fi
+        done
+    done
+
+    echo "[WARN] Unable to auto-detect an Intel VA-API driver; leaving LIBVA_DRIVER_NAME unset"
+}
+
+detect_intel_libva_driver
+
 # Start one-kvm with default options.
 # Additional options can be passed via environment variables.
 

build/one-kvm.service

@@ -1,12 +1,14 @@
 [Unit]
 Description=One-KVM IP-KVM Service
 Documentation=https://github.com/mofeng-git/One-KVM
-After=network.target
+After=network-online.target bluetooth.service
 Wants=network-online.target
 
 [Service]
 Type=simple
 User=root
+# Example for older Intel GPUs:
+# Environment=LIBVA_DRIVER_NAME=i965
 ExecStart=/usr/bin/one-kvm
 Restart=on-failure
 RestartSec=5

build/package-deb.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 # Build deb packages from pre-compiled binaries
-# Binaries are compiled once on Debian 11 (GLIBC 2.31) via build-images.sh
+# Binaries are compiled once on Debian 12 (GLIBC 2.36) via build-images.sh
 # This script packages them directly on the host using dpkg-deb
 # Usage: ./build/build-deb.sh [arch]
 # Example: ./build/build-deb.sh aarch64
@@ -125,8 +125,8 @@ EOF
     chmod 755 "$PKG_DIR/DEBIAN/prerm"
 
     # Create control file
-    BASE_DEPS="libc6 (>= 2.31), libgcc-s1, libstdc++6, libasound2 (>= 1.1), libdrm2 (>= 2.4)"
-    AMD64_DEPS="libva2 (>= 2.0), libva-drm2 (>= 2.10), libva-x11-2 (>= 2.10), libmfx1 (>= 21.1), libx11-6 (>= 1.6), libxcb1 (>= 1.14)"
+    BASE_DEPS="libc6 (>= 2.36), libgcc-s1, libstdc++6, libasound2t64 (>= 1.1) | libasound2 (>= 1.1), libdrm2 (>= 2.4)"
+    AMD64_DEPS="libva2 (>= 2.0), libva-drm2 (>= 2.10), libva-x11-2 (>= 2.10), libmfx-gen1.2 (>= 22.0) | libmfx1 (>= 21.1), libx11-6 (>= 1.6), libxcb1 (>= 1.14), i965-va-driver-shaders (>= 2.4), intel-media-va-driver-non-free (>= 21.1)"
     DEPS="$BASE_DEPS"
     if [ "$DEB_ARCH" = "amd64" ]; then
         DEPS="$DEPS, $AMD64_DEPS"
@@ -139,10 +139,11 @@ Section: admin
 Priority: optional
 Architecture: $DEB_ARCH
 Depends: $DEPS
+Recommends: bluez
 Maintainer: SilentWind <admin@mofeng.run>
 Description: A open and lightweight IP-KVM solution
  Enables BIOS-level remote management of servers and workstations.
- Built on Debian 11, compatible with Debian 11+, Ubuntu 20.04+.
+ Built on Debian 12, compatible with Debian 12+, Ubuntu 24.04+.
 EOF
 
     # Build deb directly on host

build/package-docker.sh

@@ -204,9 +204,21 @@ get_tool_urls() {
 }
 
 # Download tools for a platform
+# Set CURL_PROXY=http://host:port to route GitHub downloads through an HTTP proxy
+# Set GHPROXY_PREFIX=https://ghfast.top/ to prefix GitHub URLs instead
 download_tools() {
     local platform="$1"
     local staging="$2"
+    local curl_proxy=()
+    if [ -n "${CURL_PROXY:-}" ]; then
+        curl_proxy=(-x "$CURL_PROXY")
+    fi
+    dl() {
+        # dl <url> <output>
+        local url="$1"
+        [ -n "${GHPROXY_PREFIX:-}" ] && url="${GHPROXY_PREFIX%/}/$url"
+        curl -fsSL "${curl_proxy[@]}" "$url" -o "$2"
+    }
 
     get_tool_urls "$platform"
 
@@ -214,14 +226,14 @@ download_tools() {
 
     # ttyd
     if [ ! -f "$staging/ttyd" ]; then
-        curl -fsSL "$TTYD_URL" -o "$staging/ttyd"
+        dl "$TTYD_URL" "$staging/ttyd"
         chmod +x "$staging/ttyd"
     fi
 
     if [ "$INCLUDE_THIRD_PARTY" = true ]; then
         # gostc
         if [ ! -f "$staging/gostc" ]; then
-            curl -fsSL "$GOSTC_URL" -o /tmp/gostc.tar.gz
+            dl "$GOSTC_URL" /tmp/gostc.tar.gz
             tar -xzf /tmp/gostc.tar.gz -C "$staging"
             chmod +x "$staging/gostc"
             rm /tmp/gostc.tar.gz
@@ -229,7 +241,7 @@ download_tools() {
 
         # easytier
         if [ ! -f "$staging/easytier-core" ]; then
-            curl -fsSL "$EASYTIER_URL" -o /tmp/easytier.zip
+            dl "$EASYTIER_URL" /tmp/easytier.zip
             unzip -o /tmp/easytier.zip -d /tmp/easytier
             cp "/tmp/easytier/$EASYTIER_DIR/easytier-core" "$staging/easytier-core"
             chmod +x "$staging/easytier-core"
@@ -311,9 +323,16 @@ build_for_platform() {
 
     local build_cmd="docker buildx build --platform $platform"
     build_cmd="$build_cmd --build-arg TARGETPLATFORM=$platform"
+    if [ -n "${APT_MIRROR:-}" ]; then
+        build_cmd="$build_cmd --build-arg APT_MIRROR=$APT_MIRROR"
+    fi
 
     if [ "$PUSH" = true ]; then
         build_cmd="$build_cmd --push"
+        # Aliyun ACR rejects the OCI artifact manifests used by BuildKit attestations.
+        if [[ "$REGISTRY" == registry.cn-*.aliyuncs.com/* ]]; then
+            build_cmd="$build_cmd --provenance=false --sbom=false"
+        fi
     elif [ "$LOAD" = true ]; then
         build_cmd="$build_cmd --load"
     fi

build/windows/build.ps1

@@ -0,0 +1,87 @@
+param(
+    [string]$Configuration = "debug",
+    [string]$Target = "x86_64-pc-windows-msvc",
+    [string]$Triplet = "x64-windows-static",
+    [string]$VcpkgRoot = $env:VCPKG_ROOT,
+    [string]$VcpkgInstalledRoot = $env:VCPKG_INSTALLED_DIR,
+    [switch]$NoDefaultFeatures,
+    [string[]]$Features = @(),
+    [switch]$Package,
+    [Parameter(ValueFromRemainingArguments = $true)]
+    [string[]]$CargoArgs = @()
+)
+
+$ErrorActionPreference = "Stop"
+
+$repoRoot = Resolve-Path (Join-Path $PSScriptRoot "..\..")
+Set-Location $repoRoot
+
+if ([string]::IsNullOrWhiteSpace($VcpkgRoot)) {
+    $VcpkgRoot = Join-Path (Split-Path $repoRoot -Parent) "vcpkg"
+}
+
+$VcpkgRoot = [System.IO.Path]::GetFullPath($VcpkgRoot)
+if ([string]::IsNullOrWhiteSpace($VcpkgInstalledRoot)) {
+    $VcpkgInstalledRoot = Join-Path $VcpkgRoot "installed"
+}
+
+$VcpkgInstalledRoot = [System.IO.Path]::GetFullPath($VcpkgInstalledRoot)
+$vcpkgTripletRoot = Join-Path $VcpkgInstalledRoot $Triplet
+$turbojpegLibDir = Join-Path $vcpkgTripletRoot "lib"
+$turbojpegIncludeDir = Join-Path $vcpkgTripletRoot "include"
+
+if (-not (Test-Path $VcpkgRoot)) {
+    throw "VCPKG_ROOT does not exist: $VcpkgRoot. Run build/windows/bootstrap-vcpkg.ps1 first."
+}
+
+if (-not (Test-Path $turbojpegLibDir) -or -not (Test-Path $turbojpegIncludeDir)) {
+    throw "vcpkg triplet is not installed at $vcpkgTripletRoot. Run build/windows/bootstrap-vcpkg.ps1 first."
+}
+
+$env:VCPKG_ROOT = $VcpkgRoot
+$env:VCPKG_DEFAULT_TRIPLET = $Triplet
+$env:VCPKG_INSTALLED_DIR = $VcpkgInstalledRoot
+$env:TURBOJPEG_SOURCE = "explicit"
+$env:TURBOJPEG_LIB_DIR = $turbojpegLibDir
+$env:TURBOJPEG_INCLUDE_DIR = $turbojpegIncludeDir
+
+$cargoCommand = @("build", "--target", $Target)
+
+if ($Configuration -eq "release") {
+    $cargoCommand += "--release"
+} elseif ($Configuration -ne "debug") {
+    throw "Unsupported configuration '$Configuration'. Use 'debug' or 'release'."
+}
+
+if ($NoDefaultFeatures) {
+    $cargoCommand += "--no-default-features"
+}
+
+if ($Features.Count -gt 0) {
+    $cargoCommand += "--features"
+    $cargoCommand += ($Features -join ",")
+}
+
+$cargoCommand += $CargoArgs
+
+cargo @cargoCommand
+
+if ($Package) {
+    $metadata = cargo metadata --no-deps --format-version 1 | ConvertFrom-Json
+    $packageInfo = $metadata.packages | Where-Object { $_.name -eq "one-kvm" } | Select-Object -First 1
+
+    if ($null -eq $packageInfo -or [string]::IsNullOrWhiteSpace($packageInfo.version)) {
+        throw "Failed to resolve version from Cargo metadata"
+    }
+
+    $sourcePath = Join-Path $repoRoot "target/$Target/release/one-kvm.exe"
+    $targetName = "one-kvm_{0}_amd64.exe" -f $packageInfo.version
+    $targetPath = Join-Path $repoRoot "target/$Target/release/$targetName"
+
+    if (-not (Test-Path $sourcePath)) {
+        throw "Windows binary not found: $sourcePath"
+    }
+
+    Copy-Item $sourcePath $targetPath
+    Write-Host $targetPath
+}

docs/README.md

@@ -1,130 +0,0 @@
-# One-KVM 技术文档
-
-本目录包含 One-KVM 项目的完整技术文档。
-
-## 文档结构
-
-```
-docs/
-├── README.md                 # 本文件 - 文档索引
-├── system-architecture.md    # 系统架构文档
-├── tech-stack.md            # 技术栈文档
-└── modules/                 # 模块文档
-    ├── video.md            # 视频模块
-    ├── hid.md              # HID 模块
-    ├── otg.md              # OTG 模块
-    ├── msd.md              # MSD 模块
-    ├── atx.md              # ATX 模块
-    ├── audio.md            # 音频模块
-    ├── webrtc.md           # WebRTC 模块
-    ├── rustdesk.md         # RustDesk 模块
-    ├── auth.md             # 认证模块
-    ├── config.md           # 配置模块
-    ├── events.md           # 事件模块
-    └── web.md              # Web 模块
-```
-
-## 快速导航
-
-### 核心文档
-
-| 文档 | 描述 |
-|------|------|
-| [系统架构](./system-architecture.md) | 整体架构设计、数据流、模块依赖 |
-| [技术栈](./tech-stack.md) | 使用的技术、库和开发规范 |
-
-### 功能模块
-
-| 模块 | 描述 | 关键文件 |
-|------|------|---------|
-| [Video](./modules/video.md) | 视频采集和编码 | `src/video/` |
-| [HID](./modules/hid.md) | 键盘鼠标控制 | `src/hid/` |
-| [OTG](./modules/otg.md) | USB Gadget 管理 | `src/otg/` |
-| [MSD](./modules/msd.md) | 虚拟存储设备 | `src/msd/` |
-| [ATX](./modules/atx.md) | 电源控制 | `src/atx/` |
-| [Audio](./modules/audio.md) | 音频采集编码 | `src/audio/` |
-| [WebRTC](./modules/webrtc.md) | WebRTC 流媒体 | `src/webrtc/` |
-| [RustDesk](./modules/rustdesk.md) | RustDesk 协议集成 | `src/rustdesk/` |
-
-### 基础设施
-
-| 模块 | 描述 | 关键文件 |
-|------|------|---------|
-| [Auth](./modules/auth.md) | 认证和会话 | `src/auth/` |
-| [Config](./modules/config.md) | 配置管理 | `src/config/` |
-| [Events](./modules/events.md) | 事件系统 | `src/events/` |
-| [Web](./modules/web.md) | HTTP API | `src/web/` |
-
-## 架构概览
-
-```
-┌─────────────────────────────────────────────────────────────────┐
-│                      One-KVM System                              │
-├─────────────────────────────────────────────────────────────────┤
-│                                                                  │
-│  ┌──────────────────────────────────────────────────────────┐   │
-│  │                 Web Frontend (Vue3)                       │   │
-│  └──────────────────────────────────────────────────────────┘   │
-│                              │                                   │
-│                              ▼                                   │
-│  ┌──────────────────────────────────────────────────────────┐   │
-│  │                   Axum Web Server                         │   │
-│  └──────────────────────────────────────────────────────────┘   │
-│                              │                                   │
-│                              ▼                                   │
-│  ┌──────────────────────────────────────────────────────────┐   │
-│  │                     AppState                              │   │
-│  │  ┌────────┐ ┌────────┐ ┌────────┐ ┌────────┐            │   │
-│  │  │ Video  │ │  HID   │ │  MSD   │ │  ATX   │            │   │
-│  │  │ Module │ │ Module │ │ Module │ │ Module │            │   │
-│  │  └────────┘ └────────┘ └────────┘ └────────┘            │   │
-│  │  ┌────────┐ ┌────────┐ ┌────────┐ ┌────────┐            │   │
-│  │  │ Audio  │ │ WebRTC │ │RustDesk│ │ Events │            │   │
-│  │  │ Module │ │ Module │ │ Module │ │  Bus   │            │   │
-│  │  └────────┘ └────────┘ └────────┘ └────────┘            │   │
-│  └──────────────────────────────────────────────────────────┘   │
-│                              │                                   │
-│                              ▼                                   │
-│  ┌──────────────────────────────────────────────────────────┐   │
-│  │                  Hardware Layer                           │   │
-│  │  V4L2 │ USB OTG │ GPIO │ ALSA │ Network                  │   │
-│  └──────────────────────────────────────────────────────────┘   │
-│                                                                  │
-└─────────────────────────────────────────────────────────────────┘
-```
-
-## 关键特性
-
-- **单一二进制**: Web UI + 后端一体化部署
-- **双流模式**: WebRTC (H264/H265/VP8/VP9) + MJPEG
-- **USB OTG**: 虚拟键鼠、虚拟存储
-- **硬件加速**: VAAPI/RKMPP/V4L2 M2M
-- **RustDesk**: 跨平台远程访问
-- **无配置文件**: SQLite 配置存储
-
-## 目标平台
-
-| 平台 | 架构 | 用途 |
-|------|------|------|
-| aarch64-unknown-linux-gnu | ARM64 | 主要目标 |
-| armv7-unknown-linux-gnueabihf | ARMv7 | 备选 |
-| x86_64-unknown-linux-gnu | x86-64 | 开发/测试 |
-
-## 快速开始
-
-```bash
-# 构建前端
-cd web && npm install && npm run build && cd ..
-
-# 构建后端
-cargo build --release
-
-# 运行
-./target/release/one-kvm --enable-https
-```
-
-## 相关链接
-
-- [项目仓库](https://github.com/mofeng-git/One-KVM)
-- [开发计划](./DEVELOPMENT_PLAN.md)
-- [项目目标](./PROJECT_GOALS.md)

docs/macos-drag-compatibility.md

@@ -0,0 +1,24 @@
+# macOS 拖拽兼容模式（实验性）
+
+适用于 OTG 和 CH9329 后端的绝对鼠标输入。遇到目标 Mac 上拖拽只能移动一小段便停止时，可在设置页的 HID 配置中开启「macOS 拖拽兼容模式」。默认关闭。
+
+配置字段为 `hid.mouse_macos_drag`，旧 PR 的 `ch9329_macos_drag` 字段仍可作为读取别名。OTG 必须同时启用相对鼠标和绝对鼠标接口，否则配置保存会被拒绝。CH9329 同时启用 Linux 兼容开关时，此模式优先。
+
+## 报告行为
+
+- 未按键时仍使用绝对坐标定位。
+- 从绝对输入开始的拖拽：按下使用绝对报告，移动和滚轮使用相对报告，释放时先更新相对按钮状态，再发送绝对按钮释放。
+- 按键报告的通道保持到所有按钮释放，不随拖拽期间的输入模式切换而改变。
+- 从相对输入开始的点击、拖拽继续使用相对按钮报告；此选项不修复原生相对模式的点击兼容问题。
+- 位移从原始 15 位输入坐标换算，累计小数余量，大位移按单包范围分包并保留总量及方向。
+- 运行时使用当前视频采集尺寸，并在 HID 重载后恢复尺寸；视频尚未提供尺寸时使用配置尺寸。
+
+## 验证范围与限制
+
+本次 OTG 扩展及位移换算修改没有 macOS 实机验证。原 PR 作者对旧 CH9329 实现的实机反馈不能视为本版本已经验证。
+
+本地自动化覆盖位移累计/分包、1080p/4K 换算、往返移动、滚轮、输入模式切换、复位、CH9329 命令队列、OTG 临时文件模拟端点及配置校验。临时文件测试仅验证写出的字节，不验证 USB 枚举或目标系统的事件解释。
+
+相对位移受 macOS 鼠标速度、加速、显示缩放及多屏布局影响，无法保证与绝对定位逐像素一致。松手报告携带最后的客户端绝对坐标，仍可能出现落点偏移或光标跳位；大位移分包也可能增加低波特率串口延迟。
+
+后续实机验证应分别覆盖两个后端：窗口/文件/文本拖拽，快速及慢速移动，滚轮和多按钮组合，1080p/4K 与缩放显示，输入模式切换、断开重连、精确落点。异常时关闭此选项恢复默认行为。

docs/modules/atx.md

@@ -1,484 +0,0 @@
-# ATX 模块文档
-
-## 1. 模块概述
-
-ATX 模块提供电源控制功能，通过 GPIO 或 USB 继电器控制目标计算机的电源和重置按钮。
-
-### 1.1 主要功能
-
-- 电源按钮控制
-- 重置按钮控制
-- 电源 LED 状态监视
-- Wake-on-LAN 支持
-- 多后端支持 (GPIO/USB 继电器)
-
-### 1.2 文件结构
-
-```
-src/atx/
-├── mod.rs              # 模块导出
-├── controller.rs       # AtxController (11KB)
-├── executor.rs         # 动作执行器 (10KB)
-├── types.rs            # 类型定义 (7KB)
-├── led.rs              # LED 监视 (5KB)
-└── wol.rs              # Wake-on-LAN (5KB)
-```
-
----
-
-## 2. 架构设计
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                          ATX Architecture                                    │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-                Web API
-                   │
-                   ▼
-         ┌─────────────────┐
-         │  AtxController  │
-         │ (controller.rs) │
-         └────────┬────────┘
-                  │
-    ┌─────────────┼─────────────┐
-    │             │             │
-    ▼             ▼             ▼
-┌────────┐  ┌────────┐    ┌────────┐
-│ Power  │  │ Reset  │    │  LED   │
-│Executor│  │Executor│    │Monitor │
-└───┬────┘  └───┬────┘    └───┬────┘
-    │           │             │
-    ▼           ▼             ▼
-┌────────┐  ┌────────┐    ┌────────┐
-│ GPIO   │  │ GPIO   │    │ GPIO   │
-│ or USB │  │ or USB │    │  Input │
-│ Relay  │  │ Relay  │    │        │
-└───┬────┘  └───┬────┘    └───┬────┘
-    │           │             │
-    └───────────┼─────────────┘
-                │
-                ▼
-        ┌───────────────┐
-        │   Target PC   │
-        │ (ATX Header)  │
-        └───────────────┘
-```
-
----
-
-## 3. 核心组件
-
-### 3.1 AtxController (controller.rs)
-
-```rust
-pub struct AtxController {
-    /// 电源按钮配置
-    power: Arc<AtxButton>,
-
-    /// 重置按钮配置
-    reset: Arc<AtxButton>,
-
-    /// LED 监视器
-    led_monitor: Arc<RwLock<Option<LedMonitor>>>,
-
-    /// WoL 控制器
-    wol: Arc<RwLock<Option<WolController>>>,
-
-    /// 当前状态
-    state: Arc<RwLock<AtxState>>,
-
-    /// 事件总线
-    events: Arc<EventBus>,
-}
-
-impl AtxController {
-    /// 创建控制器
-    pub fn new(config: &AtxConfig, events: Arc<EventBus>) -> Result<Self>;
-
-    /// 短按电源按钮 (开机/正常关机)
-    pub async fn power_short_press(&self) -> Result<()>;
-
-    /// 长按电源按钮 (强制关机)
-    pub async fn power_long_press(&self) -> Result<()>;
-
-    /// 按重置按钮
-    pub async fn reset_press(&self) -> Result<()>;
-
-    /// 获取电源状态
-    pub fn power_state(&self) -> PowerState;
-
-    /// 发送 WoL 魔术包
-    pub async fn wake_on_lan(&self, mac: &str) -> Result<()>;
-
-    /// 获取状态
-    pub fn state(&self) -> AtxState;
-
-    /// 重新加载配置
-    pub async fn reload(&self, config: &AtxConfig) -> Result<()>;
-}
-
-pub struct AtxState {
-    /// 是否可用
-    pub available: bool,
-
-    /// 电源是否开启
-    pub power_on: bool,
-
-    /// 最后操作时间
-    pub last_action: Option<DateTime<Utc>>,
-
-    /// 错误信息
-    pub error: Option<String>,
-}
-
-pub enum PowerState {
-    On,
-    Off,
-    Unknown,
-}
-```
-
-### 3.2 AtxButton (executor.rs)
-
-```rust
-pub struct AtxButton {
-    /// 按钮名称
-    name: String,
-
-    /// 驱动类型
-    driver: AtxDriverType,
-
-    /// GPIO 句柄
-    gpio: Option<LineHandle>,
-
-    /// USB 继电器句柄
-    relay: Option<UsbRelay>,
-
-    /// 配置
-    config: AtxKeyConfig,
-}
-
-impl AtxButton {
-    /// 创建按钮
-    pub fn new(name: &str, config: &AtxKeyConfig) -> Result<Self>;
-
-    /// 短按 (100ms)
-    pub async fn short_press(&self) -> Result<()>;
-
-    /// 长按 (3000ms)
-    pub async fn long_press(&self) -> Result<()>;
-
-    /// 自定义按压时间
-    pub async fn press(&self, duration: Duration) -> Result<()>;
-
-    /// 设置输出状态
-    fn set_output(&self, high: bool) -> Result<()>;
-}
-
-pub enum AtxDriverType {
-    /// GPIO 直连
-    Gpio,
-
-    /// USB 继电器
-    UsbRelay,
-
-    /// 禁用
-    None,
-}
-```
-
-### 3.3 LedMonitor (led.rs)
-
-```rust
-pub struct LedMonitor {
-    /// GPIO 引脚
-    pin: u32,
-
-    /// GPIO 句柄
-    line: LineHandle,
-
-    /// 当前状态
-    state: Arc<AtomicBool>,
-
-    /// 监视任务
-    monitor_task: Option<JoinHandle<()>>,
-}
-
-impl LedMonitor {
-    /// 创建监视器
-    pub fn new(config: &AtxLedConfig) -> Result<Self>;
-
-    /// 启动监视
-    pub fn start(&mut self, events: Arc<EventBus>) -> Result<()>;
-
-    /// 停止监视
-    pub fn stop(&mut self);
-
-    /// 获取当前状态
-    pub fn state(&self) -> bool;
-}
-```
-
-### 3.4 WolController (wol.rs)
-
-```rust
-pub struct WolController {
-    /// 网络接口
-    interface: String,
-
-    /// 广播地址
-    broadcast_addr: SocketAddr,
-}
-
-impl WolController {
-    /// 创建控制器
-    pub fn new(interface: Option<&str>) -> Result<Self>;
-
-    /// 发送 WoL 魔术包
-    pub async fn wake(&self, mac: &str) -> Result<()>;
-
-    /// 构建魔术包
-    fn build_magic_packet(mac: &[u8; 6]) -> [u8; 102];
-
-    /// 解析 MAC 地址
-    fn parse_mac(mac: &str) -> Result<[u8; 6]>;
-}
-```
-
----
-
-## 4. 配置
-
-```rust
-#[derive(Serialize, Deserialize)]
-#[typeshare]
-pub struct AtxConfig {
-    /// 是否启用
-    pub enabled: bool,
-
-    /// 电源按钮配置
-    pub power: AtxKeyConfig,
-
-    /// 重置按钮配置
-    pub reset: AtxKeyConfig,
-
-    /// LED 监视配置
-    pub led: AtxLedConfig,
-
-    /// WoL 配置
-    pub wol: WolConfig,
-}
-
-#[derive(Serialize, Deserialize)]
-#[typeshare]
-pub struct AtxKeyConfig {
-    /// 驱动类型
-    pub driver: AtxDriverType,
-
-    /// GPIO 芯片 (如 /dev/gpiochip0)
-    pub gpio_chip: Option<String>,
-
-    /// GPIO 引脚号
-    pub gpio_pin: Option<u32>,
-
-    /// USB 继电器设备
-    pub relay_device: Option<String>,
-
-    /// 继电器通道
-    pub relay_channel: Option<u8>,
-
-    /// 激活电平
-    pub active_level: ActiveLevel,
-}
-
-#[derive(Serialize, Deserialize)]
-#[typeshare]
-pub struct AtxLedConfig {
-    /// 是否启用
-    pub enabled: bool,
-
-    /// GPIO 芯片
-    pub gpio_chip: Option<String>,
-
-    /// GPIO 引脚号
-    pub gpio_pin: Option<u32>,
-
-    /// 激活电平
-    pub active_level: ActiveLevel,
-}
-
-pub enum ActiveLevel {
-    High,
-    Low,
-}
-
-impl Default for AtxConfig {
-    fn default() -> Self {
-        Self {
-            enabled: false,
-            power: AtxKeyConfig::default(),
-            reset: AtxKeyConfig::default(),
-            led: AtxLedConfig::default(),
-            wol: WolConfig::default(),
-        }
-    }
-}
-```
-
----
-
-## 5. API 端点
-
-| 端点 | 方法 | 描述 |
-|------|------|------|
-| `/api/atx/status` | GET | 获取 ATX 状态 |
-| `/api/atx/power/short` | POST | 短按电源 |
-| `/api/atx/power/long` | POST | 长按电源 |
-| `/api/atx/reset` | POST | 按重置 |
-| `/api/atx/wol` | POST | 发送 WoL |
-
-### 响应格式
-
-```json
-// GET /api/atx/status
-{
-    "available": true,
-    "power_on": true,
-    "last_action": "2024-01-15T10:30:00Z",
-    "error": null
-}
-
-// POST /api/atx/wol
-// Request: { "mac": "00:11:22:33:44:55" }
-{
-    "success": true
-}
-```
-
----
-
-## 6. 硬件连接
-
-### 6.1 GPIO 直连
-
-```
-One-KVM Device                 Target PC
-┌─────────────┐               ┌─────────────┐
-│   GPIO Pin  │───────────────│ Power SW    │
-│   (Output)  │               │             │
-└─────────────┘               └─────────────┘
-
-接线说明:
-- GPIO 引脚连接到 ATX 电源按钮
-- 使用光耦或继电器隔离 (推荐)
-- 注意电平匹配
-```
-
-### 6.2 USB 继电器
-
-```
-One-KVM Device                 USB Relay                Target PC
-┌─────────────┐               ┌─────────────┐          ┌─────────────┐
-│    USB      │───────────────│   Relay     │──────────│ Power SW    │
-│             │               │             │          │             │
-└─────────────┘               └─────────────┘          └─────────────┘
-
-优点:
-- 完全隔离
-- 无需担心电平问题
-- 更安全
-```
-
----
-
-## 7. 事件
-
-```rust
-pub enum SystemEvent {
-    AtxStateChanged {
-        power_on: bool,
-        last_action: Option<String>,
-        error: Option<String>,
-    },
-
-    AtxActionPerformed {
-        action: String,  // "power_short" | "power_long" | "reset" | "wol"
-        success: bool,
-    },
-}
-```
-
----
-
-## 8. 错误处理
-
-```rust
-#[derive(Debug, thiserror::Error)]
-pub enum AtxError {
-    #[error("ATX not available")]
-    NotAvailable,
-
-    #[error("GPIO error: {0}")]
-    GpioError(String),
-
-    #[error("Relay error: {0}")]
-    RelayError(String),
-
-    #[error("WoL error: {0}")]
-    WolError(String),
-
-    #[error("Invalid MAC address: {0}")]
-    InvalidMac(String),
-
-    #[error("Operation in progress")]
-    Busy,
-}
-```
-
----
-
-## 9. 使用示例
-
-```rust
-let atx = AtxController::new(&config, events)?;
-
-// 开机
-atx.power_short_press().await?;
-
-// 检查状态
-tokio::time::sleep(Duration::from_secs(5)).await;
-if atx.power_state() == PowerState::On {
-    println!("PC is now on");
-}
-
-// 强制关机
-atx.power_long_press().await?;
-
-// 重置
-atx.reset_press().await?;
-
-// Wake-on-LAN
-atx.wake_on_lan("00:11:22:33:44:55").await?;
-```
-
----
-
-## 10. 常见问题
-
-### Q: GPIO 无法控制?
-
-1. 检查引脚配置
-2. 检查权限 (`/dev/gpiochip*`)
-3. 检查接线
-
-### Q: LED 状态不正确?
-
-1. 检查 active_level 配置
-2. 检查 GPIO 输入模式
-
-### Q: WoL 不工作?
-
-1. 检查目标 PC BIOS 设置
-2. 检查网卡支持
-3. 检查网络广播

docs/modules/audio.md

@@ -1,463 +0,0 @@
-# Audio 模块文档
-
-## 1. 模块概述
-
-Audio 模块负责音频采集和编码，支持 ALSA 采集和 Opus 编码。
-
-### 1.1 主要功能
-
-- ALSA 音频采集
-- Opus 编码
-- 多质量配置
-- WebSocket/WebRTC 传输
-
-### 1.2 文件结构
-
-```
-src/audio/
-├── mod.rs              # 模块导出
-├── controller.rs       # AudioController (15KB)
-├── capture.rs          # ALSA 采集 (12KB)
-├── encoder.rs          # Opus 编码 (8KB)
-├── shared_pipeline.rs  # 共享管道 (15KB)
-├── monitor.rs          # 健康监视 (11KB)
-└── device.rs           # 设备枚举 (8KB)
-```
-
----
-
-## 2. 架构设计
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                         Audio Architecture                                   │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-ALSA Device (hw:0,0)
-        │
-        │ PCM 48kHz/16bit/Stereo
-        ▼
-┌─────────────────┐
-│ AudioCapturer   │
-│  (capture.rs)   │
-└────────┬────────┘
-         │
-         ▼
-┌─────────────────────────────────────────┐
-│         SharedAudioPipeline             │
-│  ┌─────────────────────────────────┐   │
-│  │      Opus Encoder               │   │
-│  │   48kHz → 24-96 kbps            │   │
-│  └─────────────────────────────────┘   │
-└────────────────┬────────────────────────┘
-                 │
-       ┌─────────┴─────────┐
-       │                   │
-       ▼                   ▼
-┌─────────────┐    ┌─────────────┐
-│  WebSocket  │    │   WebRTC    │
-│   Stream    │    │ Audio Track │
-└─────────────┘    └─────────────┘
-```
-
----
-
-## 3. 核心组件
-
-### 3.1 AudioController (controller.rs)
-
-```rust
-pub struct AudioController {
-    /// 采集器
-    capturer: Arc<RwLock<Option<AudioCapturer>>>,
-
-    /// 共享管道
-    pipeline: Arc<SharedAudioPipeline>,
-
-    /// 配置
-    config: Arc<RwLock<AudioConfig>>,
-
-    /// 状态
-    state: Arc<RwLock<AudioState>>,
-
-    /// 事件总线
-    events: Arc<EventBus>,
-}
-
-impl AudioController {
-    /// 创建控制器
-    pub fn new(config: &AudioConfig, events: Arc<EventBus>) -> Result<Self>;
-
-    /// 启动音频
-    pub async fn start(&self) -> Result<()>;
-
-    /// 停止音频
-    pub async fn stop(&self) -> Result<()>;
-
-    /// 订阅音频帧
-    pub fn subscribe(&self) -> broadcast::Receiver<AudioFrame>;
-
-    /// 获取状态
-    pub fn status(&self) -> AudioStatus;
-
-    /// 设置质量
-    pub fn set_quality(&self, quality: AudioQuality) -> Result<()>;
-
-    /// 列出设备
-    pub fn list_devices(&self) -> Vec<AudioDeviceInfo>;
-
-    /// 重新加载配置
-    pub async fn reload(&self, config: &AudioConfig) -> Result<()>;
-}
-
-pub struct AudioStatus {
-    pub enabled: bool,
-    pub streaming: bool,
-    pub device: Option<String>,
-    pub sample_rate: u32,
-    pub channels: u16,
-    pub bitrate: u32,
-    pub error: Option<String>,
-}
-```
-
-### 3.2 AudioCapturer (capture.rs)
-
-```rust
-pub struct AudioCapturer {
-    /// PCM 句柄
-    pcm: PCM,
-
-    /// 设备名
-    device: String,
-
-    /// 采样率
-    sample_rate: u32,
-
-    /// 通道数
-    channels: u16,
-
-    /// 帧大小
-    frame_size: usize,
-
-    /// 运行状态
-    running: AtomicBool,
-}
-
-impl AudioCapturer {
-    /// 打开设备
-    pub fn open(device: &str, config: &CaptureConfig) -> Result<Self>;
-
-    /// 读取音频帧
-    pub fn read_frame(&self) -> Result<Vec<i16>>;
-
-    /// 启动采集
-    pub fn start(&self) -> Result<()>;
-
-    /// 停止采集
-    pub fn stop(&self);
-
-    /// 是否运行中
-    pub fn is_running(&self) -> bool;
-}
-
-pub struct CaptureConfig {
-    pub sample_rate: u32,   // 48000
-    pub channels: u16,      // 2
-    pub frame_size: usize,  // 960 (20ms)
-    pub buffer_size: usize, // 4800
-}
-```
-
-### 3.3 OpusEncoder (encoder.rs)
-
-```rust
-pub struct OpusEncoder {
-    /// Opus 编码器
-    encoder: audiopus::Encoder,
-
-    /// 采样率
-    sample_rate: u32,
-
-    /// 通道数
-    channels: u16,
-
-    /// 帧大小
-    frame_size: usize,
-
-    /// 码率
-    bitrate: u32,
-}
-
-impl OpusEncoder {
-    /// 创建编码器
-    pub fn new(quality: AudioQuality) -> Result<Self>;
-
-    /// 编码 PCM 数据
-    pub fn encode(&mut self, pcm: &[i16]) -> Result<Vec<u8>>;
-
-    /// 设置码率
-    pub fn set_bitrate(&mut self, bitrate: u32) -> Result<()>;
-
-    /// 获取码率
-    pub fn bitrate(&self) -> u32;
-
-    /// 重置编码器
-    pub fn reset(&mut self) -> Result<()>;
-}
-```
-
-### 3.4 SharedAudioPipeline (shared_pipeline.rs)
-
-```rust
-pub struct SharedAudioPipeline {
-    /// 采集器
-    capturer: Arc<RwLock<Option<AudioCapturer>>>,
-
-    /// 编码器
-    encoder: Arc<Mutex<OpusEncoder>>,
-
-    /// 广播通道
-    tx: broadcast::Sender<AudioFrame>,
-
-    /// 采集任务
-    capture_task: Arc<RwLock<Option<JoinHandle<()>>>>,
-
-    /// 配置
-    config: Arc<RwLock<AudioConfig>>,
-}
-
-impl SharedAudioPipeline {
-    /// 创建管道
-    pub fn new(config: &AudioConfig) -> Result<Self>;
-
-    /// 启动管道
-    pub async fn start(&self) -> Result<()>;
-
-    /// 停止管道
-    pub async fn stop(&self) -> Result<()>;
-
-    /// 订阅音频帧
-    pub fn subscribe(&self) -> broadcast::Receiver<AudioFrame>;
-
-    /// 获取统计
-    pub fn stats(&self) -> PipelineStats;
-}
-
-pub struct AudioFrame {
-    /// Opus 数据
-    pub data: Bytes,
-
-    /// 时间戳
-    pub timestamp: u64,
-
-    /// 帧序号
-    pub sequence: u64,
-}
-```
-
----
-
-## 4. 音频质量
-
-```rust
-pub enum AudioQuality {
-    /// 24 kbps - 最低带宽
-    VeryLow,
-
-    /// 48 kbps - 低带宽
-    Low,
-
-    /// 64 kbps - 中等
-    Medium,
-
-    /// 96 kbps - 高质量
-    High,
-}
-
-impl AudioQuality {
-    pub fn bitrate(&self) -> u32 {
-        match self {
-            Self::VeryLow => 24000,
-            Self::Low => 48000,
-            Self::Medium => 64000,
-            Self::High => 96000,
-        }
-    }
-}
-```
-
----
-
-## 5. 配置
-
-```rust
-#[derive(Serialize, Deserialize)]
-#[typeshare]
-pub struct AudioConfig {
-    /// 是否启用
-    pub enabled: bool,
-
-    /// 设备名
-    pub device: Option<String>,
-
-    /// 音频质量
-    pub quality: AudioQuality,
-
-    /// 自动启动
-    pub auto_start: bool,
-}
-
-impl Default for AudioConfig {
-    fn default() -> Self {
-        Self {
-            enabled: true,
-            device: None,  // 使用默认设备
-            quality: AudioQuality::Medium,
-            auto_start: false,
-        }
-    }
-}
-```
-
----
-
-## 6. API 端点
-
-| 端点 | 方法 | 描述 |
-|------|------|------|
-| `/api/audio/status` | GET | 获取音频状态 |
-| `/api/audio/start` | POST | 启动音频 |
-| `/api/audio/stop` | POST | 停止音频 |
-| `/api/audio/devices` | GET | 列出设备 |
-| `/api/audio/quality` | GET | 获取质量 |
-| `/api/audio/quality` | POST | 设置质量 |
-| `/api/ws/audio` | WS | 音频流 |
-
-### 响应格式
-
-```json
-// GET /api/audio/status
-{
-    "enabled": true,
-    "streaming": true,
-    "device": "hw:0,0",
-    "sample_rate": 48000,
-    "channels": 2,
-    "bitrate": 64000,
-    "error": null
-}
-
-// GET /api/audio/devices
-{
-    "devices": [
-        {
-            "name": "hw:0,0",
-            "description": "USB Audio Device",
-            "is_default": true
-        }
-    ]
-}
-```
-
----
-
-## 7. WebSocket 音频流
-
-```javascript
-// 连接 WebSocket
-const ws = new WebSocket('/api/ws/audio');
-ws.binaryType = 'arraybuffer';
-
-// 初始化 Opus 解码器
-const decoder = new OpusDecoder();
-
-// 接收音频帧
-ws.onmessage = (event) => {
-    const frame = new Uint8Array(event.data);
-    const pcm = decoder.decode(frame);
-    audioContext.play(pcm);
-};
-```
-
----
-
-## 8. 事件
-
-```rust
-pub enum SystemEvent {
-    AudioStateChanged {
-        enabled: bool,
-        streaming: bool,
-        device: Option<String>,
-        error: Option<String>,
-    },
-}
-```
-
----
-
-## 9. 错误处理
-
-```rust
-#[derive(Debug, thiserror::Error)]
-pub enum AudioError {
-    #[error("Device not found: {0}")]
-    DeviceNotFound(String),
-
-    #[error("Device busy: {0}")]
-    DeviceBusy(String),
-
-    #[error("ALSA error: {0}")]
-    AlsaError(String),
-
-    #[error("Encoder error: {0}")]
-    EncoderError(String),
-
-    #[error("Not streaming")]
-    NotStreaming,
-}
-```
-
----
-
-## 10. 使用示例
-
-```rust
-let controller = AudioController::new(&config, events)?;
-
-// 启动音频
-controller.start().await?;
-
-// 订阅音频帧
-let mut rx = controller.subscribe();
-while let Ok(frame) = rx.recv().await {
-    // 处理 Opus 数据
-    send_to_client(frame.data);
-}
-
-// 停止
-controller.stop().await?;
-```
-
----
-
-## 11. 常见问题
-
-### Q: 找不到音频设备?
-
-1. 检查 ALSA 配置
-2. 运行 `arecord -l`
-3. 检查权限
-
-### Q: 音频延迟高?
-
-1. 减小帧大小
-2. 降低质量
-3. 检查网络
-
-### Q: 音频断断续续?
-
-1. 增大缓冲区
-2. 检查 CPU 负载
-3. 使用更低质量

docs/modules/auth.md

@@ -1,340 +0,0 @@
-# Auth 模块文档
-
-## 1. 模块概述
-
-Auth 模块提供用户认证和会话管理功能。
-
-### 1.1 主要功能
-
-- 用户管理
-- 密码哈希 (Argon2)
-- 会话管理
-- 认证中间件
-- 权限控制
-
-### 1.2 文件结构
-
-```
-src/auth/
-├── mod.rs              # 模块导出
-├── user.rs             # 用户管理 (5KB)
-├── session.rs          # 会话管理 (4KB)
-├── password.rs         # 密码哈希 (1KB)
-└── middleware.rs       # 中间件 (4KB)
-```
-
----
-
-## 2. 核心组件
-
-### 2.1 UserStore (user.rs)
-
-```rust
-pub struct UserStore {
-    db: Pool<Sqlite>,
-}
-
-impl UserStore {
-    /// 创建存储
-    pub async fn new(db: Pool<Sqlite>) -> Result<Self>;
-
-    /// 创建用户
-    pub async fn create_user(&self, user: &CreateUser) -> Result<User>;
-
-    /// 获取用户
-    pub async fn get_user(&self, id: &str) -> Result<Option<User>>;
-
-    /// 按用户名获取
-    pub async fn get_by_username(&self, username: &str) -> Result<Option<User>>;
-
-    /// 更新用户
-    pub async fn update_user(&self, id: &str, update: &UpdateUser) -> Result<()>;
-
-    /// 删除用户
-    pub async fn delete_user(&self, id: &str) -> Result<()>;
-
-    /// 列出用户
-    pub async fn list_users(&self) -> Result<Vec<User>>;
-
-    /// 验证密码
-    pub async fn verify_password(&self, username: &str, password: &str) -> Result<Option<User>>;
-
-    /// 更新密码
-    pub async fn update_password(&self, id: &str, new_password: &str) -> Result<()>;
-
-    /// 检查是否需要初始化
-    pub async fn needs_setup(&self) -> Result<bool>;
-}
-
-pub struct User {
-    pub id: String,
-    pub username: String,
-    pub role: UserRole,
-    pub created_at: DateTime<Utc>,
-}
-
-pub enum UserRole {
-    Admin,
-    User,
-}
-
-pub struct CreateUser {
-    pub username: String,
-    pub password: String,
-    pub role: UserRole,
-}
-```
-
-### 2.2 SessionStore (session.rs)
-
-```rust
-pub struct SessionStore {
-    /// 会话映射
-    sessions: RwLock<HashMap<String, Session>>,
-
-    /// 会话超时
-    timeout: Duration,
-}
-
-impl SessionStore {
-    /// 创建存储
-    pub fn new(timeout: Duration) -> Self;
-
-    /// 创建会话
-    pub fn create_session(&self, user: &User) -> String;
-
-    /// 获取会话
-    pub fn get_session(&self, token: &str) -> Option<Session>;
-
-    /// 删除会话
-    pub fn delete_session(&self, token: &str);
-
-    /// 清理过期会话
-    pub fn cleanup_expired(&self);
-
-    /// 刷新会话
-    pub fn refresh_session(&self, token: &str) -> bool;
-}
-
-pub struct Session {
-    pub token: String,
-    pub user_id: String,
-    pub username: String,
-    pub role: UserRole,
-    pub created_at: Instant,
-    pub last_active: Instant,
-}
-```
-
-### 2.3 密码哈希 (password.rs)
-
-```rust
-/// 哈希密码
-pub fn hash_password(password: &str) -> Result<String> {
-    let salt = SaltString::generate(&mut OsRng);
-    let argon2 = Argon2::default();
-    let hash = argon2
-        .hash_password(password.as_bytes(), &salt)?
-        .to_string();
-    Ok(hash)
-}
-
-/// 验证密码
-pub fn verify_password(password: &str, hash: &str) -> Result<bool> {
-    let parsed_hash = PasswordHash::new(hash)?;
-    Ok(Argon2::default()
-        .verify_password(password.as_bytes(), &parsed_hash)
-        .is_ok())
-}
-```
-
-### 2.4 认证中间件 (middleware.rs)
-
-```rust
-pub async fn auth_middleware(
-    State(state): State<Arc<AppState>>,
-    cookies: Cookies,
-    request: Request,
-    next: Next,
-) -> Response {
-    // 获取 session token
-    let token = cookies
-        .get("session_id")
-        .map(|c| c.value().to_string());
-
-    // 验证会话
-    let session = token
-        .and_then(|t| state.sessions.get_session(&t));
-
-    if let Some(session) = session {
-        // 将用户信息注入请求
-        let mut request = request;
-        request.extensions_mut().insert(session);
-        next.run(request).await
-    } else {
-        StatusCode::UNAUTHORIZED.into_response()
-    }
-}
-
-pub async fn admin_middleware(
-    session: Extension<Session>,
-    request: Request,
-    next: Next,
-) -> Response {
-    if session.role == UserRole::Admin {
-        next.run(request).await
-    } else {
-        StatusCode::FORBIDDEN.into_response()
-    }
-}
-```
-
----
-
-## 3. API 端点
-
-| 端点 | 方法 | 权限 | 描述 |
-|------|------|------|------|
-| `/api/auth/login` | POST | Public | 登录 |
-| `/api/auth/logout` | POST | User | 登出 |
-| `/api/auth/check` | GET | User | 检查认证 |
-| `/api/auth/password` | POST | User | 修改密码 |
-| `/api/users` | GET | Admin | 列出用户 |
-| `/api/users` | POST | Admin | 创建用户 |
-| `/api/users/:id` | DELETE | Admin | 删除用户 |
-| `/api/setup/init` | POST | Public | 初始化设置 |
-
-### 请求/响应格式
-
-```json
-// POST /api/auth/login
-// Request:
-{
-    "username": "admin",
-    "password": "password123"
-}
-
-// Response:
-{
-    "user": {
-        "id": "uuid",
-        "username": "admin",
-        "role": "admin"
-    }
-}
-
-// GET /api/auth/check
-{
-    "authenticated": true,
-    "user": {
-        "id": "uuid",
-        "username": "admin",
-        "role": "admin"
-    }
-}
-```
-
----
-
-## 4. 配置
-
-```rust
-#[derive(Serialize, Deserialize)]
-#[typeshare]
-pub struct AuthConfig {
-    /// 会话超时 (秒)
-    pub session_timeout_secs: u64,
-
-    /// 是否启用认证
-    pub enabled: bool,
-}
-
-impl Default for AuthConfig {
-    fn default() -> Self {
-        Self {
-            session_timeout_secs: 86400,  // 24 小时
-            enabled: true,
-        }
-    }
-}
-```
-
----
-
-## 5. 安全特性
-
-### 5.1 密码存储
-
-- Argon2id 哈希
-- 随机盐值
-- 不可逆
-
-### 5.2 会话安全
-
-- 随机 token (UUID v4)
-- HTTPOnly Cookie
-- 会话超时
-- 自动清理
-
-### 5.3 权限控制
-
-- 两级权限: Admin / User
-- 中间件检查
-- 敏感操作需 Admin
-
----
-
-## 6. 使用示例
-
-```rust
-// 创建用户
-let user = users.create_user(&CreateUser {
-    username: "admin".to_string(),
-    password: "password123".to_string(),
-    role: UserRole::Admin,
-}).await?;
-
-// 验证密码
-if let Some(user) = users.verify_password("admin", "password123").await? {
-    // 创建会话
-    let token = sessions.create_session(&user);
-
-    // 设置 Cookie
-    cookies.add(Cookie::build("session_id", token)
-        .http_only(true)
-        .path("/")
-        .finish());
-}
-
-// 获取会话
-if let Some(session) = sessions.get_session(&token) {
-    println!("User: {}", session.username);
-}
-```
-
----
-
-## 7. 错误处理
-
-```rust
-#[derive(Debug, thiserror::Error)]
-pub enum AuthError {
-    #[error("Invalid credentials")]
-    InvalidCredentials,
-
-    #[error("User not found")]
-    UserNotFound,
-
-    #[error("User already exists")]
-    UserExists,
-
-    #[error("Session expired")]
-    SessionExpired,
-
-    #[error("Permission denied")]
-    PermissionDenied,
-
-    #[error("Setup required")]
-    SetupRequired,
-}
-```

docs/modules/config.md

@@ -1,755 +0,0 @@
-# Config 模块文档
-
-## 1. 模块概述
-
-Config 模块提供配置管理功能，所有配置存储在 SQLite 数据库中，使用 ArcSwap 实现无锁读取，提供高性能配置访问。
-
-### 1.1 主要功能
-
-- SQLite 配置存储（持久化）
-- 无锁配置读取（ArcSwap）
-- 类型安全的配置结构
-- 配置变更通知（broadcast channel）
-- TypeScript 类型生成（typeshare）
-- RESTful API（按功能域分离）
-
-### 1.2 文件结构
-
-```
-src/config/
-├── mod.rs              # 模块导出
-├── schema.rs           # 配置结构定义（包含所有子配置）
-└── store.rs            # SQLite 存储与无锁缓存
-```
-
----
-
-## 2. 核心组件
-
-### 2.1 ConfigStore (store.rs)
-
-配置存储使用 **ArcSwap** 实现无锁读取，提供接近零成本的配置访问性能：
-
-```rust
-pub struct ConfigStore {
-    pool: Pool<Sqlite>,
-    /// 无锁缓存，使用 ArcSwap 实现零成本读取
-    cache: Arc<ArcSwap<AppConfig>>,
-    /// 配置变更通知通道
-    change_tx: broadcast::Sender<ConfigChange>,
-}
-
-impl ConfigStore {
-    /// 创建存储
-    pub async fn new(db_path: &Path) -> Result<Self>;
-
-    /// 获取当前配置（无锁，零拷贝）
-    ///
-    /// 返回 Arc<AppConfig>，高效共享无需克隆
-    /// 这是一个无锁操作，开销极小
-    pub fn get(&self) -> Arc<AppConfig>;
-
-    /// 设置完整配置
-    pub async fn set(&self, config: AppConfig) -> Result<()>;
-
-    /// 使用闭包更新配置
-    ///
-    /// 读-修改-写模式。并发更新时，最后的写入获胜。
-    /// 对于不频繁的用户触发配置更改来说是可接受的。
-    pub async fn update<F>(&self, f: F) -> Result<()>
-    where
-        F: FnOnce(&mut AppConfig);
-
-    /// 订阅配置变更事件
-    pub fn subscribe(&self) -> broadcast::Receiver<ConfigChange>;
-
-    /// 检查系统是否已初始化（无锁）
-    pub fn is_initialized(&self) -> bool;
-
-    /// 获取数据库连接池（用于会话管理）
-    pub fn pool(&self) -> &Pool<Sqlite>;
-}
-```
-
-**性能特点**：
-- `get()` 是无锁读取操作，返回 `Arc<AppConfig>`，无需克隆
-- 配置读取频率远高于写入，ArcSwap 优化了读取路径
-- 写入操作先持久化到数据库，再原子性更新内存缓存
-- 使用 broadcast channel 通知配置变更，支持多订阅者
-
-**数据库连接池配置**：
-```rust
-SqlitePoolOptions::new()
-    .max_connections(2)           // SQLite 单写模式，2 个连接足够
-    .acquire_timeout(Duration::from_secs(5))
-    .idle_timeout(Duration::from_secs(300))
-```
-
-### 2.2 AppConfig (schema.rs)
-
-主应用配置结构，包含所有子系统的配置：
-
-```rust
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[serde(default)]
-#[typeshare]
-pub struct AppConfig {
-    /// 初始设置是否完成
-    pub initialized: bool,
-
-    /// 认证配置
-    pub auth: AuthConfig,
-
-    /// 视频采集配置
-    pub video: VideoConfig,
-
-    /// HID（键盘/鼠标）配置
-    pub hid: HidConfig,
-
-    /// MSD（大容量存储）配置
-    pub msd: MsdConfig,
-
-    /// ATX 电源控制配置
-    pub atx: AtxConfig,
-
-    /// 音频配置
-    pub audio: AudioConfig,
-
-    /// 流媒体配置
-    pub stream: StreamConfig,
-
-    /// Web 服务器配置
-    pub web: WebConfig,
-
-    /// 扩展配置（ttyd, gostc, easytier）
-    pub extensions: ExtensionsConfig,
-
-    /// RustDesk 远程访问配置
-    pub rustdesk: RustDeskConfig,
-}
-```
-
-### 2.3 主要子配置结构
-
-#### AuthConfig - 认证配置
-
-```rust
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[serde(default)]
-#[typeshare]
-pub struct AuthConfig {
-    /// 会话超时时间（秒）
-    pub session_timeout_secs: u32,  // 默认 86400（24小时）
-    /// 启用双因素认证
-    pub totp_enabled: bool,
-    /// TOTP 密钥（加密存储）
-    pub totp_secret: Option<String>,
-}
-```
-
-#### VideoConfig - 视频采集配置
-
-```rust
-#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
-#[serde(default)]
-#[typeshare]
-pub struct VideoConfig {
-    /// 视频设备路径（如 /dev/video0）
-    pub device: Option<String>,
-    /// 像素格式（如 "MJPEG", "YUYV", "NV12"）
-    pub format: Option<String>,
-    /// 分辨率宽度
-    pub width: u32,      // 默认 1920
-    /// 分辨率高度
-    pub height: u32,     // 默认 1080
-    /// 帧率
-    pub fps: u32,        // 默认 30
-    /// JPEG 质量（1-100）
-    pub quality: u32,    // 默认 80
-}
-```
-
-#### HidConfig - HID 配置
-
-```rust
-#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
-#[serde(default)]
-#[typeshare]
-pub struct HidConfig {
-    /// HID 后端类型
-    pub backend: HidBackend,  // Otg | Ch9329 | None
-    /// OTG 键盘设备路径
-    pub otg_keyboard: String,  // 默认 "/dev/hidg0"
-    /// OTG 鼠标设备路径
-    pub otg_mouse: String,     // 默认 "/dev/hidg1"
-    /// OTG UDC（USB 设备控制器）名称
-    pub otg_udc: Option<String>,
-    /// OTG USB 设备描述符配置
-    pub otg_descriptor: OtgDescriptorConfig,
-    /// CH9329 串口路径
-    pub ch9329_port: String,   // 默认 "/dev/ttyUSB0"
-    /// CH9329 波特率
-    pub ch9329_baudrate: u32,  // 默认 9600
-    /// 鼠标模式：绝对定位或相对定位
-    pub mouse_absolute: bool,  // 默认 true
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
-#[typeshare]
-pub struct OtgDescriptorConfig {
-    pub vendor_id: u16,        // 默认 0x1d6b（Linux Foundation）
-    pub product_id: u16,       // 默认 0x0104
-    pub manufacturer: String,  // 默认 "One-KVM"
-    pub product: String,       // 默认 "One-KVM USB Device"
-    pub serial_number: Option<String>,
-}
-```
-
-#### StreamConfig - 流媒体配置
-
-```rust
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[serde(default)]
-#[typeshare]
-pub struct StreamConfig {
-    /// 流模式（WebRTC | Mjpeg）
-    pub mode: StreamMode,
-    /// 编码器类型
-    pub encoder: EncoderType,  // Auto | Software | Vaapi | Nvenc | Qsv | Amf | Rkmpp | V4l2m2m
-    /// 码率预设（Speed | Balanced | Quality）
-    pub bitrate_preset: BitratePreset,
-    /// 自定义 STUN 服务器
-    pub stun_server: Option<String>,  // 默认 "stun:stun.l.google.com:19302"
-    /// 自定义 TURN 服务器
-    pub turn_server: Option<String>,
-    /// TURN 用户名
-    pub turn_username: Option<String>,
-    /// TURN 密码（加密存储，不通过 API 暴露）
-    pub turn_password: Option<String>,
-    /// 无客户端时自动暂停
-    #[typeshare(skip)]
-    pub auto_pause_enabled: bool,
-    /// 自动暂停延迟（秒）
-    #[typeshare(skip)]
-    pub auto_pause_delay_secs: u64,
-    /// 客户端超时清理（秒）
-    #[typeshare(skip)]
-    pub client_timeout_secs: u64,
-}
-```
-
-#### MsdConfig - 大容量存储配置
-
-```rust
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[serde(default)]
-#[typeshare]
-pub struct MsdConfig {
-    /// 启用 MSD 功能
-    pub enabled: bool,          // 默认 true
-    /// ISO/IMG 镜像存储路径
-    pub images_path: String,    // 默认 "./data/msd/images"
-    /// Ventoy 启动驱动器文件路径
-    pub drive_path: String,     // 默认 "./data/msd/ventoy.img"
-    /// 虚拟驱动器大小（MB，最小 1024）
-    pub virtual_drive_size_mb: u32,  // 默认 16384（16GB）
-}
-```
-
-#### AtxConfig - ATX 电源控制配置
-
-```rust
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[serde(default)]
-#[typeshare]
-pub struct AtxConfig {
-    /// 启用 ATX 功能
-    pub enabled: bool,
-    /// 电源按钮配置（短按和长按共用）
-    pub power: AtxKeyConfig,
-    /// 重置按钮配置
-    pub reset: AtxKeyConfig,
-    /// LED 检测配置（可选）
-    pub led: AtxLedConfig,
-    /// WOL 数据包使用的网络接口（空字符串 = 自动）
-    pub wol_interface: String,
-}
-```
-
-#### AudioConfig - 音频配置
-
-```rust
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[serde(default)]
-#[typeshare]
-pub struct AudioConfig {
-    /// 启用音频采集
-    pub enabled: bool,          // 默认 false
-    /// ALSA 设备名称
-    pub device: String,         // 默认 "default"
-    /// 音频质量预设："voice" | "balanced" | "high"
-    pub quality: String,        // 默认 "balanced"
-}
-```
-
-**注意**：采样率固定为 48000Hz，声道固定为 2（立体声），这是 Opus 编码和 WebRTC 的最佳配置。
-
-#### WebConfig - Web 服务器配置
-
-```rust
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[serde(default)]
-#[typeshare]
-pub struct WebConfig {
-    /// HTTP 端口
-    pub http_port: u16,         // 默认 8080
-    /// HTTPS 端口
-    pub https_port: u16,        // 默认 8443
-    /// 绑定地址
-    pub bind_address: String,   // 默认 "0.0.0.0"
-    /// 启用 HTTPS
-    pub https_enabled: bool,    // 默认 false
-    /// 自定义 SSL 证书路径
-    pub ssl_cert_path: Option<String>,
-    /// 自定义 SSL 密钥路径
-    pub ssl_key_path: Option<String>,
-}
-```
-
----
-
-## 3. TypeScript 类型生成
-
-使用 `#[typeshare]` 属性自动生成 TypeScript 类型：
-
-```rust
-#[derive(Serialize, Deserialize)]
-#[typeshare]
-pub struct VideoConfig {
-    pub device: Option<String>,
-    pub width: u32,
-    pub height: u32,
-}
-```
-
-生成的 TypeScript：
-
-```typescript
-export interface VideoConfig {
-    device?: string;
-    width: number;
-    height: number;
-}
-```
-
-生成命令：
-
-```bash
-./scripts/generate-types.sh
-# 或
-typeshare src --lang=typescript --output-file=web/src/types/generated.ts
-```
-
----
-
-## 4. API 端点
-
-所有配置端点均需要 **Admin** 权限，采用 RESTful 设计，按功能域分离。
-
-### 4.1 全局配置
-
-| 端点 | 方法 | 权限 | 描述 |
-|------|------|------|------|
-| `/api/config` | GET | Admin | 获取完整配置（敏感信息已过滤） |
-| `/api/config` | POST | Admin | 更新完整配置（已废弃，请使用按域 PATCH） |
-
-### 4.2 分域配置端点
-
-| 端点 | 方法 | 权限 | 描述 |
-|------|------|------|------|
-| `/api/config/video` | GET | Admin | 获取视频配置 |
-| `/api/config/video` | PATCH | Admin | 更新视频配置（部分更新） |
-| `/api/config/stream` | GET | Admin | 获取流配置 |
-| `/api/config/stream` | PATCH | Admin | 更新流配置（部分更新） |
-| `/api/config/hid` | GET | Admin | 获取 HID 配置 |
-| `/api/config/hid` | PATCH | Admin | 更新 HID 配置（部分更新） |
-| `/api/config/msd` | GET | Admin | 获取 MSD 配置 |
-| `/api/config/msd` | PATCH | Admin | 更新 MSD 配置（部分更新） |
-| `/api/config/atx` | GET | Admin | 获取 ATX 配置 |
-| `/api/config/atx` | PATCH | Admin | 更新 ATX 配置（部分更新） |
-| `/api/config/audio` | GET | Admin | 获取音频配置 |
-| `/api/config/audio` | PATCH | Admin | 更新音频配置（部分更新） |
-| `/api/config/web` | GET | Admin | 获取 Web 服务器配置 |
-| `/api/config/web` | PATCH | Admin | 更新 Web 服务器配置（部分更新） |
-
-### 4.3 RustDesk 配置端点
-
-| 端点 | 方法 | 权限 | 描述 |
-|------|------|------|------|
-| `/api/config/rustdesk` | GET | Admin | 获取 RustDesk 配置 |
-| `/api/config/rustdesk` | PATCH | Admin | 更新 RustDesk 配置 |
-| `/api/config/rustdesk/status` | GET | Admin | 获取 RustDesk 服务状态 |
-| `/api/config/rustdesk/password` | GET | Admin | 获取设备密码 |
-| `/api/config/rustdesk/regenerate-id` | POST | Admin | 重新生成设备 ID |
-| `/api/config/rustdesk/regenerate-password` | POST | Admin | 重新生成设备密码 |
-
-### 4.4 请求/响应示例
-
-#### 获取视频配置
-
-```bash
-GET /api/config/video
-```
-
-响应：
-```json
-{
-    "device": "/dev/video0",
-    "format": "MJPEG",
-    "width": 1920,
-    "height": 1080,
-    "fps": 30,
-    "quality": 80
-}
-```
-
-#### 部分更新视频配置
-
-```bash
-PATCH /api/config/video
-Content-Type: application/json
-
-{
-    "width": 1280,
-    "height": 720,
-    "fps": 60
-}
-```
-
-响应：更新后的完整 VideoConfig
-```json
-{
-    "device": "/dev/video0",
-    "format": "MJPEG",
-    "width": 1280,
-    "height": 720,
-    "fps": 60,
-    "quality": 80
-}
-```
-
-**注意**：
-- 所有 PATCH 请求都支持部分更新，只需要提供要修改的字段
-- 未提供的字段保持原有值不变
-- 更新后返回完整的配置对象
-- 配置变更会自动触发相关组件重载
-
----
-
-## 5. 配置变更通知
-
-ConfigStore 提供 broadcast channel 用于配置变更通知：
-
-```rust
-/// 配置变更事件
-#[derive(Debug, Clone)]
-pub struct ConfigChange {
-    pub key: String,
-}
-
-// 订阅配置变更
-let mut rx = config_store.subscribe();
-
-// 监听变更事件
-while let Ok(change) = rx.recv().await {
-    println!("配置 {} 已更新", change.key);
-    // 重载相关组件
-}
-```
-
-**工作流程**：
-1. 调用 `config_store.set()` 或 `config_store.update()`
-2. 配置写入数据库（持久化）
-3. 原子性更新内存缓存（ArcSwap）
-4. 发送 `ConfigChange` 事件到 broadcast channel
-5. 各组件的订阅者接收事件并执行重载逻辑
-
-**组件重载示例**：
-```rust
-// VideoStreamManager 监听配置变更
-let mut config_rx = config_store.subscribe();
-tokio::spawn(async move {
-    while let Ok(change) = config_rx.recv().await {
-        if change.key == "app_config" {
-            video_manager.reload().await;
-        }
-    }
-});
-```
-
----
-
-## 6. 数据库结构
-
-ConfigStore 使用 SQLite 存储配置和其他系统数据：
-
-### 6.1 配置表
-
-```sql
-CREATE TABLE IF NOT EXISTS config (
-    key TEXT PRIMARY KEY,
-    value TEXT NOT NULL,
-    updated_at TEXT NOT NULL DEFAULT (datetime('now'))
-);
-```
-
-配置以 JSON 格式存储：
-```sql
--- 应用配置
-key: 'app_config'
-value: '{"initialized": true, "video": {...}, "hid": {...}, ...}'
-```
-
-### 6.2 用户表
-
-```sql
-CREATE TABLE IF NOT EXISTS users (
-    id TEXT PRIMARY KEY,
-    username TEXT NOT NULL UNIQUE,
-    password_hash TEXT NOT NULL,
-    is_admin INTEGER NOT NULL DEFAULT 0,
-    created_at TEXT NOT NULL DEFAULT (datetime('now')),
-    updated_at TEXT NOT NULL DEFAULT (datetime('now'))
-);
-```
-
-### 6.3 会话表
-
-```sql
-CREATE TABLE IF NOT EXISTS sessions (
-    id TEXT PRIMARY KEY,
-    user_id TEXT NOT NULL,
-    created_at TEXT NOT NULL DEFAULT (datetime('now')),
-    expires_at TEXT NOT NULL,
-    data TEXT
-);
-```
-
-### 6.4 API 令牌表
-
-```sql
-CREATE TABLE IF NOT EXISTS api_tokens (
-    id TEXT PRIMARY KEY,
-    name TEXT NOT NULL,
-    token_hash TEXT NOT NULL,
-    permissions TEXT NOT NULL,
-    expires_at TEXT,
-    created_at TEXT NOT NULL DEFAULT (datetime('now')),
-    last_used TEXT
-);
-```
-
-**存储特点**：
-- 所有配置存储在单个 JSON 文本中（`app_config` key）
-- 每次配置更新都更新整个 JSON，简化事务处理
-- 使用 `ON CONFLICT` 实现 upsert 操作
-- 连接池大小为 2（1 读 + 1 写），适合嵌入式环境
-
----
-
-## 7. 使用示例
-
-### 7.1 基本用法
-
-```rust
-use crate::config::ConfigStore;
-use std::path::Path;
-
-// 创建配置存储
-let config_store = ConfigStore::new(Path::new("./data/config.db")).await?;
-
-// 获取配置（无锁，零拷贝）
-let config = config_store.get();
-println!("视频设备: {:?}", config.video.device);
-println!("是否已初始化: {}", config.initialized);
-
-// 检查是否已初始化
-if !config_store.is_initialized() {
-    println!("系统尚未初始化，请完成初始设置");
-}
-```
-
-### 7.2 更新配置
-
-```rust
-// 方式 1: 使用闭包更新（推荐）
-config_store.update(|config| {
-    config.video.width = 1280;
-    config.video.height = 720;
-    config.video.fps = 60;
-}).await?;
-
-// 方式 2: 整体替换
-let mut new_config = (*config_store.get()).clone();
-new_config.stream.mode = StreamMode::WebRTC;
-new_config.stream.encoder = EncoderType::Rkmpp;
-config_store.set(new_config).await?;
-```
-
-### 7.3 订阅配置变更
-
-```rust
-// 在组件中监听配置变更
-let config_store = state.config.clone();
-let mut rx = config_store.subscribe();
-
-tokio::spawn(async move {
-    while let Ok(change) = rx.recv().await {
-        tracing::info!("配置 {} 已变更", change.key);
-
-        // 重新加载配置
-        let config = config_store.get();
-
-        // 执行重载逻辑
-        if let Err(e) = reload_component(&config).await {
-            tracing::error!("重载组件失败: {}", e);
-        }
-    }
-});
-```
-
-### 7.4 在 Handler 中使用
-
-```rust
-use axum::{extract::State, Json};
-use std::sync::Arc;
-
-use crate::config::VideoConfig;
-use crate::state::AppState;
-
-// 获取视频配置
-pub async fn get_video_config(
-    State(state): State<Arc<AppState>>
-) -> Json<VideoConfig> {
-    let config = state.config.get();
-    Json(config.video.clone())
-}
-
-// 更新视频配置
-pub async fn update_video_config(
-    State(state): State<Arc<AppState>>,
-    Json(update): Json<VideoConfig>,
-) -> Result<Json<VideoConfig>> {
-    // 更新配置
-    state.config.update(|config| {
-        config.video = update;
-    }).await?;
-
-    // 返回更新后的配置
-    let config = state.config.get();
-    Ok(Json(config.video.clone()))
-}
-```
-
-### 7.5 访问数据库连接池
-
-```rust
-// ConfigStore 还提供数据库连接池访问
-// 用于用户管理、会话管理等功能
-
-let pool = config_store.pool();
-
-// 查询用户
-let user: Option<User> = sqlx::query_as(
-    "SELECT * FROM users WHERE username = ?"
-)
-.bind(username)
-.fetch_optional(pool)
-.await?;
-```
-
----
-
-## 8. 默认配置
-
-系统首次运行时会自动创建默认配置：
-
-```rust
-impl Default for AppConfig {
-    fn default() -> Self {
-        Self {
-            initialized: false,  // 需要通过初始设置向导完成
-            auth: AuthConfig {
-                session_timeout_secs: 86400,  // 24小时
-                totp_enabled: false,
-                totp_secret: None,
-            },
-            video: VideoConfig {
-                device: None,      // 自动检测
-                format: None,      // 自动检测或使用 MJPEG
-                width: 1920,
-                height: 1080,
-                fps: 30,
-                quality: 80,
-            },
-            stream: StreamConfig {
-                mode: StreamMode::Mjpeg,
-                encoder: EncoderType::Auto,
-                bitrate_preset: BitratePreset::Balanced,
-                stun_server: Some("stun:stun.l.google.com:19302".to_string()),
-                turn_server: None,
-                turn_username: None,
-                turn_password: None,
-                auto_pause_enabled: false,
-                auto_pause_delay_secs: 10,
-                client_timeout_secs: 30,
-            },
-            hid: HidConfig {
-                backend: HidBackend::None,  // 需要用户手动启用
-                otg_keyboard: "/dev/hidg0".to_string(),
-                otg_mouse: "/dev/hidg1".to_string(),
-                otg_udc: None,              // 自动检测
-                otg_descriptor: OtgDescriptorConfig::default(),
-                ch9329_port: "/dev/ttyUSB0".to_string(),
-                ch9329_baudrate: 9600,
-                mouse_absolute: true,
-            },
-            msd: MsdConfig {
-                enabled: true,
-                images_path: "./data/msd/images".to_string(),
-                drive_path: "./data/msd/ventoy.img".to_string(),
-                virtual_drive_size_mb: 16384,  // 16GB
-            },
-            atx: AtxConfig {
-                enabled: false,  // 需要用户配置硬件绑定
-                power: AtxKeyConfig::default(),
-                reset: AtxKeyConfig::default(),
-                led: AtxLedConfig::default(),
-                wol_interface: String::new(),  // 自动检测
-            },
-            audio: AudioConfig {
-                enabled: false,
-                device: "default".to_string(),
-                quality: "balanced".to_string(),
-            },
-            web: WebConfig {
-                http_port: 8080,
-                https_port: 8443,
-                bind_address: "0.0.0.0".to_string(),
-                https_enabled: false,
-                ssl_cert_path: None,
-                ssl_key_path: None,
-            },
-            extensions: ExtensionsConfig::default(),
-            rustdesk: RustDeskConfig::default(),
-        }
-    }
-}
-```
-
-**配置初始化流程**：
-1. 用户首次访问 Web UI，系统检测到 `initialized = false`
-2. 重定向到初始设置向导（`/setup`）
-3. 用户设置管理员账户、选择视频设备等
-4. 完成设置后，`initialized` 设为 `true`
-5. 后续可通过设置页面（`/settings`）修改各项配置

docs/modules/events.md

@@ -1,353 +0,0 @@
-# Events 模块文档
-
-## 1. 模块概述
-
-Events 模块提供事件总线功能，用于模块间通信和状态广播。
-
-### 1.1 主要功能
-
-- 事件发布/订阅
-- 多订阅者广播
-- WebSocket 事件推送
-- 状态变更通知
-
-### 1.2 文件结构
-
-```
-src/events/
-└── mod.rs              # EventBus 实现
-```
-
----
-
-## 2. 架构设计
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                          Event System                                        │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-┌────────────────┐ ┌────────────────┐ ┌────────────────┐
-│     Video      │ │      HID       │ │     Audio      │
-│    Module      │ │    Module      │ │    Module      │
-└───────┬────────┘ └───────┬────────┘ └───────┬────────┘
-        │                  │                  │
-        │   publish()      │   publish()      │   publish()
-        └──────────────────┼──────────────────┘
-                           │
-                           ▼
-                ┌─────────────────────┐
-                │      EventBus       │
-                │ (broadcast channel) │
-                └──────────┬──────────┘
-                           │
-         ┌─────────────────┼─────────────────┐
-         │                 │                 │
-         │   subscribe()   │   subscribe()   │
-         ▼                 ▼                 ▼
-┌────────────────┐ ┌────────────────┐ ┌────────────────┐
-│   WebSocket    │ │   DeviceInfo   │ │   Internal     │
-│   Handler      │ │  Broadcaster   │ │    Tasks       │
-└────────────────┘ └────────────────┘ └────────────────┘
-```
-
----
-
-## 3. 核心组件
-
-### 3.1 EventBus
-
-```rust
-pub struct EventBus {
-    /// 广播发送器
-    tx: broadcast::Sender<SystemEvent>,
-}
-
-impl EventBus {
-    /// 创建事件总线
-    pub fn new() -> Self {
-        let (tx, _) = broadcast::channel(1024);
-        Self { tx }
-    }
-
-    /// 发布事件
-    pub fn publish(&self, event: SystemEvent) {
-        let _ = self.tx.send(event);
-    }
-
-    /// 订阅事件
-    pub fn subscribe(&self) -> broadcast::Receiver<SystemEvent> {
-        self.tx.subscribe()
-    }
-}
-```
-
-### 3.2 SystemEvent
-
-```rust
-#[derive(Clone, Debug, Serialize)]
-pub enum SystemEvent {
-    // 视频事件
-    StreamStateChanged {
-        state: String,
-        device: Option<String>,
-        resolution: Option<Resolution>,
-        fps: Option<f32>,
-    },
-
-    VideoDeviceChanged {
-        added: Vec<String>,
-        removed: Vec<String>,
-    },
-
-    // HID 事件
-    HidStateChanged {
-        backend: String,
-        initialized: bool,
-        keyboard_connected: bool,
-        mouse_connected: bool,
-        mouse_mode: String,
-        error: Option<String>,
-    },
-
-    // MSD 事件
-    MsdStateChanged {
-        mode: String,
-        connected: bool,
-        image: Option<String>,
-        error: Option<String>,
-    },
-
-    MsdDownloadProgress {
-        download_id: String,
-        downloaded: u64,
-        total: u64,
-        speed: u64,
-    },
-
-    // ATX 事件
-    AtxStateChanged {
-        power_on: bool,
-        last_action: Option<String>,
-        error: Option<String>,
-    },
-
-    // 音频事件
-    AudioStateChanged {
-        enabled: bool,
-        streaming: bool,
-        device: Option<String>,
-        error: Option<String>,
-    },
-
-    // 配置事件
-    ConfigChanged {
-        section: String,
-    },
-
-    // 设备信息汇总
-    DeviceInfo {
-        video: VideoInfo,
-        hid: HidInfo,
-        msd: MsdInfo,
-        atx: AtxInfo,
-        audio: AudioInfo,
-    },
-
-    // 系统错误
-    SystemError {
-        module: String,
-        severity: String,
-        message: String,
-    },
-
-    // RustDesk 事件
-    RustDeskStatusChanged {
-        status: String,
-        device_id: Option<String>,
-        error: Option<String>,
-    },
-
-    RustDeskConnectionOpened {
-        connection_id: String,
-        peer_id: String,
-    },
-
-    RustDeskConnectionClosed {
-        connection_id: String,
-        peer_id: String,
-        reason: String,
-    },
-}
-```
-
----
-
-## 4. 设备信息广播器
-
-在 `main.rs` 中启动的后台任务：
-
-```rust
-pub fn spawn_device_info_broadcaster(
-    state: Arc<AppState>,
-    events: Arc<EventBus>,
-) -> JoinHandle<()> {
-    tokio::spawn(async move {
-        let mut rx = events.subscribe();
-        let mut debounce = tokio::time::interval(Duration::from_millis(100));
-        let mut pending = false;
-
-        loop {
-            tokio::select! {
-                // 收到事件
-                result = rx.recv() => {
-                    if result.is_ok() {
-                        pending = true;
-                    }
-                }
-
-                // 防抖定时器
-                _ = debounce.tick() => {
-                    if pending {
-                        pending = false;
-                        // 收集设备信息
-                        let device_info = state.get_device_info().await;
-                        // 广播
-                        events.publish(SystemEvent::DeviceInfo(device_info));
-                    }
-                }
-            }
-        }
-    })
-}
-```
-
----
-
-## 5. WebSocket 事件推送
-
-```rust
-pub async fn ws_handler(
-    ws: WebSocketUpgrade,
-    State(state): State<Arc<AppState>>,
-) -> impl IntoResponse {
-    ws.on_upgrade(|socket| handle_ws(socket, state))
-}
-
-async fn handle_ws(mut socket: WebSocket, state: Arc<AppState>) {
-    let mut rx = state.events.subscribe();
-
-    loop {
-        tokio::select! {
-            // 发送事件给客户端
-            result = rx.recv() => {
-                if let Ok(event) = result {
-                    let json = serde_json::to_string(&event).unwrap();
-                    if socket.send(Message::Text(json)).await.is_err() {
-                        break;
-                    }
-                }
-            }
-
-            // 接收客户端消息
-            msg = socket.recv() => {
-                match msg {
-                    Some(Ok(Message::Close(_))) | None => break,
-                    _ => {}
-                }
-            }
-        }
-    }
-}
-```
-
----
-
-## 6. 使用示例
-
-### 6.1 发布事件
-
-```rust
-// 视频模块发布状态变更
-events.publish(SystemEvent::StreamStateChanged {
-    state: "streaming".to_string(),
-    device: Some("/dev/video0".to_string()),
-    resolution: Some(Resolution { width: 1920, height: 1080 }),
-    fps: Some(30.0),
-});
-
-// HID 模块发布状态变更
-events.publish(SystemEvent::HidStateChanged {
-    backend: "otg".to_string(),
-    initialized: true,
-    keyboard_connected: true,
-    mouse_connected: true,
-    mouse_mode: "absolute".to_string(),
-    error: None,
-});
-```
-
-### 6.2 订阅事件
-
-```rust
-let mut rx = events.subscribe();
-
-loop {
-    match rx.recv().await {
-        Ok(SystemEvent::StreamStateChanged { state, .. }) => {
-            println!("Stream state: {}", state);
-        }
-        Ok(SystemEvent::HidStateChanged { backend, .. }) => {
-            println!("HID backend: {}", backend);
-        }
-        Err(_) => break,
-    }
-}
-```
-
----
-
-## 7. 前端事件处理
-
-```typescript
-// 连接 WebSocket
-const ws = new WebSocket('/api/ws');
-
-ws.onmessage = (event) => {
-    const data = JSON.parse(event.data);
-
-    switch (data.type) {
-        case 'StreamStateChanged':
-            updateStreamStatus(data);
-            break;
-        case 'HidStateChanged':
-            updateHidStatus(data);
-            break;
-        case 'MsdStateChanged':
-            updateMsdStatus(data);
-            break;
-        case 'DeviceInfo':
-            updateAllDevices(data);
-            break;
-    }
-};
-```
-
----
-
-## 8. 最佳实践
-
-### 8.1 事件粒度
-
-- 使用细粒度事件便于精确更新
-- DeviceInfo 用于初始化和定期同步
-
-### 8.2 防抖
-
-- 使用 100ms 防抖避免事件风暴
-- 合并多个快速变更
-
-### 8.3 错误处理
-
-- 发布失败静默忽略 (fire-and-forget)
-- 订阅者断开自动清理

docs/modules/msd.md

@@ -1,617 +0,0 @@
-# MSD 模块文档
-
-## 1. 模块概述
-
-MSD (Mass Storage Device) 模块提供虚拟存储设备功能，允许将 ISO/IMG 镜像作为 USB 存储设备挂载到目标计算机。
-
-### 1.1 主要功能
-
-- ISO/IMG 镜像挂载
-- 镜像下载管理
-- Ventoy 多 ISO 启动盘
-- 热插拔支持
-- 下载进度追踪
-
-### 1.2 文件结构
-
-```
-src/msd/
-├── mod.rs              # 模块导出
-├── controller.rs       # MsdController (20KB)
-├── image.rs            # 镜像管理 (21KB)
-├── ventoy_drive.rs     # Ventoy 驱动 (24KB)
-├── monitor.rs          # 健康监视 (9KB)
-└── types.rs            # 类型定义 (6KB)
-```
-
----
-
-## 2. 架构设计
-
-### 2.1 整体架构
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                          MSD Architecture                                    │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-                    Web API
-                       │
-                       ▼
-              ┌─────────────────┐
-              │  MsdController  │
-              │ (controller.rs) │
-              └────────┬────────┘
-                       │
-         ┌─────────────┼─────────────┐
-         │             │             │
-         ▼             ▼             ▼
-┌─────────────┐ ┌───────────┐ ┌───────────┐
-│   Image     │ │  Ventoy   │ │    OTG    │
-│  Manager    │ │   Drive   │ │  Service  │
-│ (image.rs)  │ │(ventoy.rs)│ │           │
-└──────┬──────┘ └─────┬─────┘ └─────┬─────┘
-       │              │             │
-       ▼              ▼             ▼
-┌─────────────┐ ┌───────────┐ ┌───────────┐
-│  /data/     │ │  exFAT    │ │  MSD      │
-│  images/    │ │  Drive    │ │ Function  │
-└─────────────┘ └───────────┘ └───────────┘
-                                    │
-                                    ▼
-                            ┌───────────────┐
-                            │  Target PC    │
-                            │  (USB Drive)  │
-                            └───────────────┘
-```
-
-### 2.2 MSD 模式
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                            MSD Modes                                         │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-┌─────────────────────────────────────────────────────────────────────────────┐
-│  Image Mode                                                                  │
-│  ┌───────────┐                                                              │
-│  │ ISO/IMG   │ ──► MSD LUN ──► Target PC sees single drive                 │
-│  │ File      │                                                              │
-│  └───────────┘                                                              │
-│  特点:                                                                       │
-│  - 单个镜像文件                                                              │
-│  - 直接挂载                                                                  │
-│  - 适合系统安装                                                              │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-┌─────────────────────────────────────────────────────────────────────────────┐
-│  Ventoy Mode                                                                 │
-│  ┌───────────┐                                                              │
-│  │  ISO 1    │                                                              │
-│  ├───────────┤      ┌───────────┐                                          │
-│  │  ISO 2    │ ──►  │  Ventoy   │ ──► Target PC sees bootable drive       │
-│  ├───────────┤      │  Drive    │     with ISO selection menu              │
-│  │  ISO 3    │      └───────────┘                                          │
-│  └───────────┘                                                              │
-│  特点:                                                                       │
-│  - 多个 ISO 文件                                                             │
-│  - exFAT 文件系统                                                            │
-│  - 启动菜单选择                                                              │
-└─────────────────────────────────────────────────────────────────────────────┘
-```
-
----
-
-## 3. 核心组件
-
-### 3.1 MsdController (controller.rs)
-
-MSD 控制器主类。
-
-```rust
-pub struct MsdController {
-    /// 当前状态
-    state: Arc<RwLock<MsdState>>,
-
-    /// 镜像管理器
-    image_manager: Arc<ImageManager>,
-
-    /// Ventoy 驱动器
-    ventoy_drive: Arc<RwLock<Option<VentoyDrive>>>,
-
-    /// OTG 服务
-    otg_service: Arc<OtgService>,
-
-    /// MSD 函数句柄
-    msd_function: Arc<RwLock<Option<MsdFunction>>>,
-
-    /// 事件总线
-    events: Arc<EventBus>,
-
-    /// 数据目录
-    data_dir: PathBuf,
-}
-
-impl MsdController {
-    /// 创建控制器
-    pub async fn new(
-        otg_service: Arc<OtgService>,
-        data_dir: PathBuf,
-        events: Arc<EventBus>,
-    ) -> Result<Arc<Self>>;
-
-    /// 获取状态
-    pub fn state(&self) -> MsdState;
-
-    /// 连接 MSD
-    pub async fn connect(&self) -> Result<()>;
-
-    /// 断开 MSD
-    pub async fn disconnect(&self) -> Result<()>;
-
-    /// 切换到镜像模式
-    pub async fn set_image(&self, image_id: &str) -> Result<()>;
-
-    /// 切换到 Ventoy 模式
-    pub async fn set_ventoy(&self) -> Result<()>;
-
-    /// 清除当前挂载
-    pub async fn clear(&self) -> Result<()>;
-
-    /// 列出镜像
-    pub fn list_images(&self) -> Vec<ImageInfo>;
-
-    /// 上传镜像
-    pub async fn upload_image(&self, name: &str, data: Bytes) -> Result<ImageInfo>;
-
-    /// 从 URL 下载镜像
-    pub async fn download_image(&self, url: &str) -> Result<String>;
-
-    /// 删除镜像
-    pub async fn delete_image(&self, image_id: &str) -> Result<()>;
-
-    /// 获取下载进度
-    pub fn get_download_progress(&self, download_id: &str) -> Option<DownloadProgress>;
-}
-
-pub struct MsdState {
-    /// 是否可用
-    pub available: bool,
-
-    /// 当前模式
-    pub mode: MsdMode,
-
-    /// 是否已连接
-    pub connected: bool,
-
-    /// 当前镜像信息
-    pub current_image: Option<ImageInfo>,
-
-    /// 驱动器信息
-    pub drive_info: Option<DriveInfo>,
-
-    /// 错误信息
-    pub error: Option<String>,
-}
-
-pub enum MsdMode {
-    /// 未激活
-    None,
-
-    /// 单镜像模式
-    Image,
-
-    /// Ventoy 模式
-    Drive,
-}
-```
-
-### 3.2 ImageManager (image.rs)
-
-镜像文件管理器。
-
-```rust
-pub struct ImageManager {
-    /// 镜像目录
-    images_dir: PathBuf,
-
-    /// 镜像列表缓存
-    images: RwLock<HashMap<String, ImageInfo>>,
-
-    /// 下载任务
-    downloads: RwLock<HashMap<String, DownloadTask>>,
-
-    /// HTTP 客户端
-    http_client: reqwest::Client,
-}
-
-impl ImageManager {
-    /// 创建管理器
-    pub fn new(images_dir: PathBuf) -> Result<Self>;
-
-    /// 扫描镜像目录
-    pub fn scan_images(&self) -> Result<Vec<ImageInfo>>;
-
-    /// 获取镜像信息
-    pub fn get_image(&self, id: &str) -> Option<ImageInfo>;
-
-    /// 添加镜像
-    pub async fn add_image(&self, name: &str, data: Bytes) -> Result<ImageInfo>;
-
-    /// 删除镜像
-    pub fn delete_image(&self, id: &str) -> Result<()>;
-
-    /// 开始下载
-    pub async fn start_download(&self, url: &str) -> Result<String>;
-
-    /// 取消下载
-    pub fn cancel_download(&self, download_id: &str) -> Result<()>;
-
-    /// 获取下载进度
-    pub fn get_download_progress(&self, download_id: &str) -> Option<DownloadProgress>;
-
-    /// 验证镜像文件
-    fn validate_image(path: &Path) -> Result<ImageFormat>;
-}
-
-pub struct ImageInfo {
-    /// 唯一 ID
-    pub id: String,
-
-    /// 文件名
-    pub name: String,
-
-    /// 文件大小
-    pub size: u64,
-
-    /// 格式
-    pub format: ImageFormat,
-
-    /// 创建时间
-    pub created_at: DateTime<Utc>,
-
-    /// 下载状态
-    pub download_status: Option<DownloadStatus>,
-}
-
-pub enum ImageFormat {
-    /// ISO 光盘镜像
-    Iso,
-
-    /// 原始磁盘镜像
-    Img,
-
-    /// 未知格式
-    Unknown,
-}
-
-pub struct DownloadProgress {
-    /// 已下载字节
-    pub downloaded: u64,
-
-    /// 总字节数
-    pub total: u64,
-
-    /// 下载速度 (bytes/sec)
-    pub speed: u64,
-
-    /// 预计剩余时间
-    pub eta_secs: u64,
-
-    /// 状态
-    pub status: DownloadStatus,
-}
-
-pub enum DownloadStatus {
-    Pending,
-    Downloading,
-    Completed,
-    Failed(String),
-    Cancelled,
-}
-```
-
-### 3.3 VentoyDrive (ventoy_drive.rs)
-
-Ventoy 可启动驱动器管理。
-
-```rust
-pub struct VentoyDrive {
-    /// 驱动器路径
-    drive_path: PathBuf,
-
-    /// 镜像路径
-    images: Vec<PathBuf>,
-
-    /// 容量
-    capacity: u64,
-
-    /// 已用空间
-    used: u64,
-}
-
-impl VentoyDrive {
-    /// 创建 Ventoy 驱动器
-    pub fn create(drive_path: PathBuf, capacity: u64) -> Result<Self>;
-
-    /// 添加 ISO
-    pub fn add_iso(&mut self, iso_path: &Path) -> Result<()>;
-
-    /// 移除 ISO
-    pub fn remove_iso(&mut self, name: &str) -> Result<()>;
-
-    /// 列出 ISO
-    pub fn list_isos(&self) -> Vec<String>;
-
-    /// 获取驱动器信息
-    pub fn info(&self) -> DriveInfo;
-
-    /// 获取驱动器路径
-    pub fn path(&self) -> &Path;
-}
-
-pub struct DriveInfo {
-    /// 容量
-    pub capacity: u64,
-
-    /// 已用空间
-    pub used: u64,
-
-    /// 可用空间
-    pub available: u64,
-
-    /// ISO 列表
-    pub isos: Vec<String>,
-}
-```
-
----
-
-## 4. 类型定义
-
-### 4.1 MSD 配置
-
-```rust
-#[derive(Serialize, Deserialize)]
-#[typeshare]
-pub struct MsdConfig {
-    /// 是否启用 MSD
-    pub enabled: bool,
-
-    /// 镜像目录
-    pub images_dir: Option<String>,
-
-    /// 默认模式
-    pub default_mode: MsdMode,
-
-    /// Ventoy 容量 (MB)
-    pub ventoy_capacity_mb: u32,
-}
-
-impl Default for MsdConfig {
-    fn default() -> Self {
-        Self {
-            enabled: true,
-            images_dir: None,
-            default_mode: MsdMode::None,
-            ventoy_capacity_mb: 4096,  // 4GB
-        }
-    }
-}
-```
-
----
-
-## 5. API 端点
-
-| 端点 | 方法 | 描述 |
-|------|------|------|
-| `/api/msd/status` | GET | 获取 MSD 状态 |
-| `/api/msd/connect` | POST | 连接 MSD |
-| `/api/msd/disconnect` | POST | 断开 MSD |
-| `/api/msd/images` | GET | 列出镜像 |
-| `/api/msd/images` | POST | 上传镜像 |
-| `/api/msd/images/:id` | DELETE | 删除镜像 |
-| `/api/msd/images/download` | POST | 从 URL 下载 |
-| `/api/msd/images/download/:id` | GET | 获取下载进度 |
-| `/api/msd/images/download/:id` | DELETE | 取消下载 |
-| `/api/msd/set-image` | POST | 设置当前镜像 |
-| `/api/msd/set-ventoy` | POST | 设置 Ventoy 模式 |
-| `/api/msd/clear` | POST | 清除挂载 |
-
-### 响应格式
-
-```json
-// GET /api/msd/status
-{
-    "available": true,
-    "mode": "image",
-    "connected": true,
-    "current_image": {
-        "id": "abc123",
-        "name": "ubuntu-22.04.iso",
-        "size": 4700000000,
-        "format": "iso"
-    },
-    "drive_info": null,
-    "error": null
-}
-
-// GET /api/msd/images
-{
-    "images": [
-        {
-            "id": "abc123",
-            "name": "ubuntu-22.04.iso",
-            "size": 4700000000,
-            "format": "iso",
-            "created_at": "2024-01-15T10:30:00Z"
-        }
-    ]
-}
-
-// POST /api/msd/images/download
-// Request: { "url": "https://example.com/image.iso" }
-// Response: { "download_id": "xyz789" }
-
-// GET /api/msd/images/download/xyz789
-{
-    "downloaded": 1234567890,
-    "total": 4700000000,
-    "speed": 12345678,
-    "eta_secs": 280,
-    "status": "downloading"
-}
-```
-
----
-
-## 6. 事件
-
-```rust
-pub enum SystemEvent {
-    MsdStateChanged {
-        mode: MsdMode,
-        connected: bool,
-        image: Option<String>,
-        error: Option<String>,
-    },
-
-    MsdDownloadProgress {
-        download_id: String,
-        progress: DownloadProgress,
-    },
-
-    MsdDownloadComplete {
-        download_id: String,
-        image_id: String,
-        success: bool,
-        error: Option<String>,
-    },
-}
-```
-
----
-
-## 7. 错误处理
-
-```rust
-#[derive(Debug, thiserror::Error)]
-pub enum MsdError {
-    #[error("MSD not available")]
-    NotAvailable,
-
-    #[error("Already connected")]
-    AlreadyConnected,
-
-    #[error("Not connected")]
-    NotConnected,
-
-    #[error("Image not found: {0}")]
-    ImageNotFound(String),
-
-    #[error("Invalid image format: {0}")]
-    InvalidFormat(String),
-
-    #[error("Download failed: {0}")]
-    DownloadFailed(String),
-
-    #[error("Storage full")]
-    StorageFull,
-
-    #[error("OTG error: {0}")]
-    OtgError(String),
-
-    #[error("IO error: {0}")]
-    IoError(#[from] std::io::Error),
-}
-```
-
----
-
-## 8. 使用示例
-
-### 8.1 挂载 ISO 镜像
-
-```rust
-let msd = MsdController::new(otg_service, data_dir, events).await?;
-
-// 列出镜像
-let images = msd.list_images();
-println!("Available images: {:?}", images);
-
-// 设置镜像
-msd.set_image("abc123").await?;
-
-// 连接到目标 PC
-msd.connect().await?;
-
-// 目标 PC 现在可以看到 USB 驱动器...
-
-// 断开连接
-msd.disconnect().await?;
-```
-
-### 8.2 从 URL 下载
-
-```rust
-// 开始下载
-let download_id = msd.download_image("https://example.com/ubuntu.iso").await?;
-
-// 监控进度
-loop {
-    if let Some(progress) = msd.get_download_progress(&download_id) {
-        println!("Progress: {}%", progress.downloaded * 100 / progress.total);
-
-        if matches!(progress.status, DownloadStatus::Completed) {
-            break;
-        }
-    }
-    tokio::time::sleep(Duration::from_secs(1)).await;
-}
-```
-
-### 8.3 使用 Ventoy 模式
-
-```rust
-// 切换到 Ventoy 模式
-msd.set_ventoy().await?;
-
-// 获取驱动器信息
-let state = msd.state();
-if let Some(drive_info) = state.drive_info {
-    println!("Capacity: {} MB", drive_info.capacity / 1024 / 1024);
-    println!("ISOs: {:?}", drive_info.isos);
-}
-
-// 连接
-msd.connect().await?;
-```
-
----
-
-## 9. 常见问题
-
-### Q: 镜像无法挂载?
-
-1. 检查镜像文件完整性
-2. 确认文件格式正确
-3. 检查存储空间
-
-### Q: 目标 PC 不识别?
-
-1. 检查 USB 连接
-2. 尝试重新连接
-3. 查看目标 PC 的设备管理器
-
-### Q: 下载速度慢?
-
-1. 检查网络连接
-2. 使用更近的镜像源
-3. 检查磁盘 I/O
-
-### Q: Ventoy 启动失败?
-
-1. 检查目标 PC BIOS 设置
-2. 尝试不同的启动模式
-3. 确认 ISO 文件支持 Ventoy

docs/modules/otg.md

@@ -1,667 +0,0 @@
-# OTG 模块文档
-
-## 1. 模块概述
-
-OTG (On-The-Go) 模块负责管理 Linux USB Gadget，为 HID 和 MSD 功能提供统一的 USB 设备管理。
-
-### 1.1 主要功能
-
-- USB Gadget 生命周期管理
-- HID 函数配置 (键盘、鼠标)
-- MSD 函数配置 (虚拟存储)
-- ConfigFS 操作
-- UDC 绑定/解绑
-
-### 1.2 文件结构
-
-```
-src/otg/
-├── mod.rs              # 模块导出
-├── service.rs          # OtgService (17KB)
-├── manager.rs          # OtgGadgetManager (12KB)
-├── hid.rs              # HID Function (7KB)
-├── msd.rs              # MSD Function (14KB)
-├── configfs.rs         # ConfigFS 操作 (4KB)
-├── endpoint.rs         # 端点分配 (2KB)
-└── report_desc.rs      # HID 报告描述符 (6KB)
-```
-
----
-
-## 2. 架构设计
-
-### 2.1 设计目标
-
-解决 HID 和 MSD 共享同一个 USB Gadget 的所有权问题：
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                         OTG Ownership Model                                  │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-              ┌─────────────────┐
-              │   OtgService    │ ◄── 唯一所有者
-              │  (service.rs)   │
-              └────────┬────────┘
-                       │
-         ┌─────────────┼─────────────┐
-         │             │             │
-         ▼             ▼             ▼
-   enable_hid()   enable_msd()   状态查询
-         │             │
-         └──────┬──────┘
-                │
-                ▼
-         ┌─────────────────┐
-         │OtgGadgetManager │
-         │  (manager.rs)   │
-         └────────┬────────┘
-                  │
-    ┌─────────────┼─────────────┐
-    │             │             │
-    ▼             ▼             ▼
-┌───────┐   ┌───────┐   ┌───────┐
-│ HID   │   │ MSD   │   │ UDC   │
-│ Func  │   │ Func  │   │ Bind  │
-└───────┘   └───────┘   └───────┘
-```
-
-### 2.2 ConfigFS 结构
-
-```
-/sys/kernel/config/usb_gadget/one-kvm/
-├── idVendor                    # 0x05ac (Apple)
-├── idProduct                   # 0x0001
-├── bcdDevice                   # 0x0100
-├── bcdUSB                      # 0x0200
-├── bMaxPacketSize0             # 64
-│
-├── strings/
-│   └── 0x409/                  # English
-│       ├── manufacturer        # "One-KVM"
-│       ├── product             # "KVM Device"
-│       └── serialnumber        # UUID
-│
-├── configs/
-│   └── c.1/
-│       ├── MaxPower            # 500
-│       ├── strings/
-│       │   └── 0x409/
-│       │       └── configuration  # "Config 1"
-│       └── (function symlinks)
-│
-├── functions/
-│   ├── hid.usb0/               # 键盘
-│   │   ├── protocol            # 1 (keyboard)
-│   │   ├── subclass            # 1 (boot)
-│   │   ├── report_length       # 8
-│   │   └── report_desc         # (binary)
-│   │
-│   ├── hid.usb1/               # 相对鼠标
-│   │   ├── protocol            # 2 (mouse)
-│   │   ├── subclass            # 1 (boot)
-│   │   ├── report_length       # 4
-│   │   └── report_desc         # (binary)
-│   │
-│   ├── hid.usb2/               # 绝对鼠标
-│   │   ├── protocol            # 2 (mouse)
-│   │   ├── subclass            # 0 (none)
-│   │   ├── report_length       # 6
-│   │   └── report_desc         # (binary)
-│   │
-│   └── mass_storage.usb0/      # 虚拟存储
-│       ├── stall               # 1
-│       └── lun.0/
-│           ├── cdrom           # 1 (ISO mode)
-│           ├── ro              # 1 (read-only)
-│           ├── removable       # 1
-│           ├── nofua           # 1
-│           └── file            # /path/to/image.iso
-│
-└── UDC                         # UDC 设备名
-```
-
----
-
-## 3. 核心组件
-
-### 3.1 OtgService (service.rs)
-
-OTG 服务主类，提供统一的 USB Gadget 管理接口。
-
-```rust
-pub struct OtgService {
-    /// Gadget 管理器
-    manager: Arc<Mutex<OtgGadgetManager>>,
-
-    /// 当前状态
-    state: Arc<RwLock<OtgServiceState>>,
-
-    /// HID 函数句柄
-    hid_function: Arc<RwLock<Option<HidFunction>>>,
-
-    /// MSD 函数句柄
-    msd_function: Arc<RwLock<Option<MsdFunction>>>,
-
-    /// 请求计数器 (lock-free)
-    pending_requests: AtomicU8,
-}
-
-impl OtgService {
-    /// 创建服务
-    pub fn new() -> Result<Self>;
-
-    /// 启用 HID 功能
-    pub async fn enable_hid(&self) -> Result<HidDevicePaths>;
-
-    /// 禁用 HID 功能
-    pub async fn disable_hid(&self) -> Result<()>;
-
-    /// 启用 MSD 功能
-    pub async fn enable_msd(&self) -> Result<MsdFunction>;
-
-    /// 禁用 MSD 功能
-    pub async fn disable_msd(&self) -> Result<()>;
-
-    /// 获取状态
-    pub fn state(&self) -> OtgServiceState;
-
-    /// 检查 HID 是否启用
-    pub fn is_hid_enabled(&self) -> bool;
-
-    /// 检查 MSD 是否启用
-    pub fn is_msd_enabled(&self) -> bool;
-}
-
-pub struct OtgServiceState {
-    /// Gadget 是否激活
-    pub gadget_active: bool,
-
-    /// HID 是否启用
-    pub hid_enabled: bool,
-
-    /// MSD 是否启用
-    pub msd_enabled: bool,
-
-    /// HID 设备路径
-    pub hid_paths: Option<HidDevicePaths>,
-
-    /// 错误信息
-    pub error: Option<String>,
-}
-
-pub struct HidDevicePaths {
-    pub keyboard: PathBuf,        // /dev/hidg0
-    pub mouse_relative: PathBuf,  // /dev/hidg1
-    pub mouse_absolute: PathBuf,  // /dev/hidg2
-}
-```
-
-### 3.2 OtgGadgetManager (manager.rs)
-
-Gadget 生命周期管理器。
-
-```rust
-pub struct OtgGadgetManager {
-    /// Gadget 路径
-    gadget_path: PathBuf,
-
-    /// UDC 设备名
-    udc_name: Option<String>,
-
-    /// 是否已创建
-    created: bool,
-
-    /// 是否已绑定
-    bound: bool,
-
-    /// 端点分配器
-    endpoint_allocator: EndpointAllocator,
-}
-
-impl OtgGadgetManager {
-    /// 创建管理器
-    pub fn new() -> Result<Self>;
-
-    /// 创建 Gadget
-    pub fn create_gadget(&mut self, config: &GadgetConfig) -> Result<()>;
-
-    /// 销毁 Gadget
-    pub fn destroy_gadget(&mut self) -> Result<()>;
-
-    /// 绑定 UDC
-    pub fn bind_udc(&mut self) -> Result<()>;
-
-    /// 解绑 UDC
-    pub fn unbind_udc(&mut self) -> Result<()>;
-
-    /// 添加函数
-    pub fn add_function(&mut self, func: &dyn GadgetFunction) -> Result<()>;
-
-    /// 移除函数
-    pub fn remove_function(&mut self, func: &dyn GadgetFunction) -> Result<()>;
-
-    /// 链接函数到配置
-    pub fn link_function(&self, func: &dyn GadgetFunction) -> Result<()>;
-
-    /// 取消链接函数
-    pub fn unlink_function(&self, func: &dyn GadgetFunction) -> Result<()>;
-
-    /// 检测可用 UDC
-    fn detect_udc() -> Result<String>;
-}
-
-pub struct GadgetConfig {
-    pub name: String,            // "one-kvm"
-    pub vendor_id: u16,          // 0x05ac
-    pub product_id: u16,         // 0x0001
-    pub manufacturer: String,    // "One-KVM"
-    pub product: String,         // "KVM Device"
-    pub serial: String,          // UUID
-}
-```
-
-### 3.3 HID Function (hid.rs)
-
-```rust
-pub struct HidFunction {
-    /// 键盘函数
-    keyboard: HidFunctionConfig,
-
-    /// 相对鼠标函数
-    mouse_relative: HidFunctionConfig,
-
-    /// 绝对鼠标函数
-    mouse_absolute: HidFunctionConfig,
-}
-
-pub struct HidFunctionConfig {
-    /// 函数名
-    pub name: String,            // "hid.usb0"
-
-    /// 协议
-    pub protocol: u8,            // 1=keyboard, 2=mouse
-
-    /// 子类
-    pub subclass: u8,            // 1=boot, 0=none
-
-    /// 报告长度
-    pub report_length: u8,
-
-    /// 报告描述符
-    pub report_desc: Vec<u8>,
-}
-
-impl HidFunction {
-    /// 创建 HID 函数
-    pub fn new() -> Self;
-
-    /// 获取键盘报告描述符
-    pub fn keyboard_report_desc() -> Vec<u8>;
-
-    /// 获取相对鼠标报告描述符
-    pub fn mouse_relative_report_desc() -> Vec<u8>;
-
-    /// 获取绝对鼠标报告描述符
-    pub fn mouse_absolute_report_desc() -> Vec<u8>;
-}
-
-impl GadgetFunction for HidFunction {
-    fn name(&self) -> &str;
-    fn function_type(&self) -> &str;  // "hid"
-    fn configure(&self, path: &Path) -> Result<()>;
-}
-```
-
-### 3.4 MSD Function (msd.rs)
-
-```rust
-pub struct MsdFunction {
-    /// 函数名
-    name: String,
-
-    /// LUN 配置
-    luns: Vec<MsdLun>,
-}
-
-pub struct MsdLun {
-    /// LUN 编号
-    pub lun_id: u8,
-
-    /// 镜像文件路径
-    pub file: Option<PathBuf>,
-
-    /// 是否 CD-ROM 模式
-    pub cdrom: bool,
-
-    /// 是否只读
-    pub readonly: bool,
-
-    /// 是否可移除
-    pub removable: bool,
-}
-
-impl MsdFunction {
-    /// 创建 MSD 函数
-    pub fn new() -> Self;
-
-    /// 设置镜像文件
-    pub fn set_image(&mut self, path: &Path, cdrom: bool) -> Result<()>;
-
-    /// 清除镜像
-    pub fn clear_image(&mut self) -> Result<()>;
-
-    /// 弹出介质
-    pub fn eject(&mut self) -> Result<()>;
-}
-
-impl GadgetFunction for MsdFunction {
-    fn name(&self) -> &str;
-    fn function_type(&self) -> &str;  // "mass_storage"
-    fn configure(&self, path: &Path) -> Result<()>;
-}
-```
-
-### 3.5 ConfigFS 操作 (configfs.rs)
-
-```rust
-pub struct ConfigFs;
-
-impl ConfigFs {
-    /// ConfigFS 根路径
-    const ROOT: &'static str = "/sys/kernel/config/usb_gadget";
-
-    /// 创建目录
-    pub fn mkdir(path: &Path) -> Result<()>;
-
-    /// 删除目录
-    pub fn rmdir(path: &Path) -> Result<()>;
-
-    /// 写入文件
-    pub fn write_file(path: &Path, content: &str) -> Result<()>;
-
-    /// 写入二进制文件
-    pub fn write_binary(path: &Path, data: &[u8]) -> Result<()>;
-
-    /// 读取文件
-    pub fn read_file(path: &Path) -> Result<String>;
-
-    /// 创建符号链接
-    pub fn symlink(target: &Path, link: &Path) -> Result<()>;
-
-    /// 删除符号链接
-    pub fn unlink(path: &Path) -> Result<()>;
-
-    /// 列出目录
-    pub fn list_dir(path: &Path) -> Result<Vec<String>>;
-}
-```
-
-### 3.6 端点分配 (endpoint.rs)
-
-```rust
-pub struct EndpointAllocator {
-    /// 已使用的端点
-    used_endpoints: HashSet<u8>,
-
-    /// 最大端点数
-    max_endpoints: u8,
-}
-
-impl EndpointAllocator {
-    /// 创建分配器
-    pub fn new(max_endpoints: u8) -> Self;
-
-    /// 分配端点
-    pub fn allocate(&mut self, count: u8) -> Result<Vec<u8>>;
-
-    /// 释放端点
-    pub fn release(&mut self, endpoints: &[u8]);
-
-    /// 检查可用端点数
-    pub fn available(&self) -> u8;
-}
-```
-
-### 3.7 报告描述符 (report_desc.rs)
-
-```rust
-pub struct ReportDescriptor;
-
-impl ReportDescriptor {
-    /// 标准键盘报告描述符
-    pub fn keyboard() -> Vec<u8> {
-        vec![
-            0x05, 0x01,        // Usage Page (Generic Desktop)
-            0x09, 0x06,        // Usage (Keyboard)
-            0xA1, 0x01,        // Collection (Application)
-            0x05, 0x07,        //   Usage Page (Key Codes)
-            0x19, 0xE0,        //   Usage Minimum (224)
-            0x29, 0xE7,        //   Usage Maximum (231)
-            0x15, 0x00,        //   Logical Minimum (0)
-            0x25, 0x01,        //   Logical Maximum (1)
-            0x75, 0x01,        //   Report Size (1)
-            0x95, 0x08,        //   Report Count (8)
-            0x81, 0x02,        //   Input (Data, Variable, Absolute)
-            0x95, 0x01,        //   Report Count (1)
-            0x75, 0x08,        //   Report Size (8)
-            0x81, 0x01,        //   Input (Constant)
-            0x95, 0x06,        //   Report Count (6)
-            0x75, 0x08,        //   Report Size (8)
-            0x15, 0x00,        //   Logical Minimum (0)
-            0x25, 0x65,        //   Logical Maximum (101)
-            0x05, 0x07,        //   Usage Page (Key Codes)
-            0x19, 0x00,        //   Usage Minimum (0)
-            0x29, 0x65,        //   Usage Maximum (101)
-            0x81, 0x00,        //   Input (Data, Array)
-            0xC0,              // End Collection
-        ]
-    }
-
-    /// 相对鼠标报告描述符
-    pub fn mouse_relative() -> Vec<u8>;
-
-    /// 绝对鼠标报告描述符
-    pub fn mouse_absolute() -> Vec<u8>;
-}
-```
-
----
-
-## 4. 生命周期管理
-
-### 4.1 初始化流程
-
-```
-OtgService::new()
-    │
-    ├── 检测 UDC 设备
-    │   └── 读取 /sys/class/udc/
-    │
-    ├── 创建 OtgGadgetManager
-    │
-    └── 初始化状态
-
-enable_hid()
-    │
-    ├── 检查 Gadget 是否存在
-    │   └── 如不存在，创建 Gadget
-    │
-    ├── 创建 HID 函数
-    │   ├── hid.usb0 (键盘)
-    │   ├── hid.usb1 (相对鼠标)
-    │   └── hid.usb2 (绝对鼠标)
-    │
-    ├── 配置函数
-    │   └── 写入报告描述符
-    │
-    ├── 链接函数到配置
-    │
-    ├── 绑定 UDC (如未绑定)
-    │
-    └── 等待设备节点出现
-        └── /dev/hidg0, hidg1, hidg2
-```
-
-### 4.2 清理流程
-
-```
-disable_hid()
-    │
-    ├── 检查是否有其他函数使用
-    │
-    ├── 如果只有 HID，解绑 UDC
-    │
-    ├── 取消链接 HID 函数
-    │
-    └── 删除 HID 函数目录
-
-disable_msd()
-    │
-    ├── 同上...
-    │
-    └── 如果没有任何函数，销毁 Gadget
-```
-
----
-
-## 5. 配置
-
-### 5.1 OTG 配置
-
-```rust
-#[derive(Serialize, Deserialize)]
-#[typeshare]
-pub struct OtgConfig {
-    /// 是否启用 OTG
-    pub enabled: bool,
-
-    /// 厂商 ID
-    pub vendor_id: u16,
-
-    /// 产品 ID
-    pub product_id: u16,
-
-    /// 厂商名称
-    pub manufacturer: String,
-
-    /// 产品名称
-    pub product: String,
-}
-
-impl Default for OtgConfig {
-    fn default() -> Self {
-        Self {
-            enabled: true,
-            vendor_id: 0x05ac,  // Apple
-            product_id: 0x0001,
-            manufacturer: "One-KVM".to_string(),
-            product: "KVM Device".to_string(),
-        }
-    }
-}
-```
-
----
-
-## 6. 错误处理
-
-```rust
-#[derive(Debug, thiserror::Error)]
-pub enum OtgError {
-    #[error("No UDC device found")]
-    NoUdcDevice,
-
-    #[error("Gadget already exists")]
-    GadgetExists,
-
-    #[error("Gadget not found")]
-    GadgetNotFound,
-
-    #[error("Function already exists: {0}")]
-    FunctionExists(String),
-
-    #[error("UDC busy")]
-    UdcBusy,
-
-    #[error("ConfigFS error: {0}")]
-    ConfigFsError(String),
-
-    #[error("Permission denied: {0}")]
-    PermissionDenied(String),
-
-    #[error("Device node not found: {0}")]
-    DeviceNodeNotFound(String),
-}
-```
-
----
-
-## 7. 使用示例
-
-### 7.1 启用 HID
-
-```rust
-let otg = OtgService::new()?;
-
-// 启用 HID
-let paths = otg.enable_hid().await?;
-println!("Keyboard: {:?}", paths.keyboard);
-println!("Mouse relative: {:?}", paths.mouse_relative);
-println!("Mouse absolute: {:?}", paths.mouse_absolute);
-
-// 使用设备...
-
-// 禁用 HID
-otg.disable_hid().await?;
-```
-
-### 7.2 启用 MSD
-
-```rust
-let otg = OtgService::new()?;
-
-// 启用 MSD
-let mut msd = otg.enable_msd().await?;
-
-// 挂载 ISO
-msd.set_image(Path::new("/data/ubuntu.iso"), true)?;
-
-// 弹出
-msd.eject()?;
-
-// 禁用 MSD
-otg.disable_msd().await?;
-```
-
----
-
-## 8. 常见问题
-
-### Q: 找不到 UDC 设备?
-
-1. 检查内核是否支持 USB Gadget
-2. 加载必要的内核模块:
-   ```bash
-   modprobe libcomposite
-   modprobe usb_f_hid
-   modprobe usb_f_mass_storage
-   ```
-3. 检查 `/sys/class/udc/` 目录
-
-### Q: 权限错误?
-
-1. 以 root 运行
-2. 或配置 udev 规则
-
-### Q: 设备节点不出现?
-
-1. 检查 UDC 是否正确绑定
-2. 查看 `dmesg` 日志
-3. 检查 ConfigFS 配置
-
-### Q: 目标 PC 不识别?
-
-1. 检查 USB 线缆
-2. 检查报告描述符
-3. 使用 `lsusb` 确认设备

docs/modules/web.md

@@ -1,428 +0,0 @@
-# Web 模块文档
-
-## 1. 模块概述
-
-Web 模块提供 HTTP API 和静态文件服务。
-
-### 1.1 主要功能
-
-- REST API
-- WebSocket
-- 静态文件服务
-- 认证中间件
-- CORS 支持
-
-### 1.2 文件结构
-
-```
-src/web/
-├── mod.rs              # 模块导出
-├── routes.rs           # 路由定义 (9KB)
-├── ws.rs               # WebSocket (8KB)
-├── audio_ws.rs         # 音频 WebSocket (8KB)
-├── static_files.rs     # 静态文件 (6KB)
-└── handlers/           # API 处理器
-    ├── mod.rs
-    └── config/
-        ├── mod.rs
-        ├── apply.rs
-        ├── types.rs
-        └── rustdesk.rs
-```
-
----
-
-## 2. 路由结构
-
-### 2.1 公共路由 (无认证)
-
-| 路由 | 方法 | 描述 |
-|------|------|------|
-| `/health` | GET | 健康检查 |
-| `/auth/login` | POST | 登录 |
-| `/setup` | GET | 获取设置状态 |
-| `/setup/init` | POST | 初始化设置 |
-
-### 2.2 用户路由 (需认证)
-
-| 路由 | 方法 | 描述 |
-|------|------|------|
-| `/info` | GET | 系统信息 |
-| `/devices` | GET | 设备列表 |
-| `/stream/*` | * | 流控制 |
-| `/webrtc/*` | * | WebRTC 信令 |
-| `/hid/*` | * | HID 控制 |
-| `/audio/*` | * | 音频控制 |
-| `/ws` | WS | 事件 WebSocket |
-| `/ws/audio` | WS | 音频 WebSocket |
-
-### 2.3 管理员路由 (需 Admin)
-
-| 路由 | 方法 | 描述 |
-|------|------|------|
-| `/config/*` | * | 配置管理 |
-| `/msd/*` | * | MSD 操作 |
-| `/atx/*` | * | ATX 控制 |
-| `/extensions/*` | * | 扩展管理 |
-| `/rustdesk/*` | * | RustDesk |
-| `/users/*` | * | 用户管理 |
-
----
-
-## 3. 路由定义
-
-```rust
-pub fn create_router(state: Arc<AppState>) -> Router {
-    Router::new()
-        // 公共路由
-        .route("/health", get(handlers::health))
-        .route("/auth/login", post(handlers::login))
-        .route("/setup", get(handlers::setup_status))
-        .route("/setup/init", post(handlers::setup_init))
-
-        // 用户路由
-        .nest("/api", user_routes())
-
-        // 管理员路由
-        .nest("/api/admin", admin_routes())
-
-        // 静态文件
-        .fallback(static_files::serve)
-
-        // 中间件
-        .layer(CorsLayer::permissive())
-        .layer(CompressionLayer::new())
-        .layer(TraceLayer::new_for_http())
-
-        // 状态
-        .with_state(state)
-}
-
-fn user_routes() -> Router {
-    Router::new()
-        .route("/info", get(handlers::system_info))
-        .route("/devices", get(handlers::list_devices))
-
-        // 流控制
-        .route("/stream/status", get(handlers::stream_status))
-        .route("/stream/start", post(handlers::stream_start))
-        .route("/stream/stop", post(handlers::stream_stop))
-        .route("/stream/mjpeg", get(handlers::mjpeg_stream))
-
-        // WebRTC
-        .route("/webrtc/session", post(handlers::webrtc_create_session))
-        .route("/webrtc/offer", post(handlers::webrtc_offer))
-        .route("/webrtc/ice", post(handlers::webrtc_ice))
-        .route("/webrtc/close", post(handlers::webrtc_close))
-
-        // HID
-        .route("/hid/status", get(handlers::hid_status))
-        .route("/hid/reset", post(handlers::hid_reset))
-
-        // WebSocket
-        .route("/ws", get(handlers::ws_handler))
-        .route("/ws/audio", get(handlers::audio_ws_handler))
-
-        // 认证中间件
-        .layer(middleware::from_fn(auth_middleware))
-}
-
-fn admin_routes() -> Router {
-    Router::new()
-        // 配置
-        .route("/config", get(handlers::config::get_config))
-        .route("/config", patch(handlers::config::update_config))
-
-        // MSD
-        .route("/msd/status", get(handlers::msd_status))
-        .route("/msd/connect", post(handlers::msd_connect))
-
-        // ATX
-        .route("/atx/status", get(handlers::atx_status))
-        .route("/atx/power/short", post(handlers::atx_power_short))
-
-        // 认证中间件
-        .layer(middleware::from_fn(auth_middleware))
-        .layer(middleware::from_fn(admin_middleware))
-}
-```
-
----
-
-## 4. 静态文件服务
-
-```rust
-#[derive(RustEmbed)]
-#[folder = "web/dist"]
-#[include = "*.html"]
-#[include = "*.js"]
-#[include = "*.css"]
-#[include = "assets/*"]
-struct Assets;
-
-pub async fn serve(uri: Uri) -> impl IntoResponse {
-    let path = uri.path().trim_start_matches('/');
-
-    // 尝试获取文件
-    if let Some(content) = Assets::get(path) {
-        let mime = mime_guess::from_path(path)
-            .first_or_octet_stream();
-
-        return (
-            [(header::CONTENT_TYPE, mime.as_ref())],
-            content.data.into_owned(),
-        ).into_response();
-    }
-
-    // SPA 回退到 index.html
-    if let Some(content) = Assets::get("index.html") {
-        return (
-            [(header::CONTENT_TYPE, "text/html")],
-            content.data.into_owned(),
-        ).into_response();
-    }
-
-    StatusCode::NOT_FOUND.into_response()
-}
-```
-
----
-
-## 5. WebSocket 处理
-
-### 5.1 事件 WebSocket (ws.rs)
-
-```rust
-pub async fn ws_handler(
-    ws: WebSocketUpgrade,
-    State(state): State<Arc<AppState>>,
-) -> impl IntoResponse {
-    ws.on_upgrade(|socket| handle_ws(socket, state))
-}
-
-async fn handle_ws(mut socket: WebSocket, state: Arc<AppState>) {
-    // 发送初始设备信息
-    let device_info = state.get_device_info().await;
-    let json = serde_json::to_string(&device_info).unwrap();
-    let _ = socket.send(Message::Text(json)).await;
-
-    // 订阅事件
-    let mut rx = state.events.subscribe();
-
-    loop {
-        tokio::select! {
-            // 发送事件
-            result = rx.recv() => {
-                if let Ok(event) = result {
-                    let json = serde_json::to_string(&event).unwrap();
-                    if socket.send(Message::Text(json)).await.is_err() {
-                        break;
-                    }
-                }
-            }
-
-            // 接收消息 (心跳/关闭)
-            msg = socket.recv() => {
-                match msg {
-                    Some(Ok(Message::Ping(data))) => {
-                        let _ = socket.send(Message::Pong(data)).await;
-                    }
-                    Some(Ok(Message::Close(_))) | None => break,
-                    _ => {}
-                }
-            }
-        }
-    }
-}
-```
-
-### 5.2 音频 WebSocket (audio_ws.rs)
-
-```rust
-pub async fn audio_ws_handler(
-    ws: WebSocketUpgrade,
-    State(state): State<Arc<AppState>>,
-) -> impl IntoResponse {
-    ws.on_upgrade(|socket| handle_audio_ws(socket, state))
-}
-
-async fn handle_audio_ws(mut socket: WebSocket, state: Arc<AppState>) {
-    // 订阅音频帧
-    let mut rx = state.audio.subscribe();
-
-    loop {
-        tokio::select! {
-            // 发送音频帧
-            result = rx.recv() => {
-                if let Ok(frame) = result {
-                    if socket.send(Message::Binary(frame.data.to_vec())).await.is_err() {
-                        break;
-                    }
-                }
-            }
-
-            // 处理关闭
-            msg = socket.recv() => {
-                match msg {
-                    Some(Ok(Message::Close(_))) | None => break,
-                    _ => {}
-                }
-            }
-        }
-    }
-}
-```
-
----
-
-## 6. MJPEG 流
-
-```rust
-pub async fn mjpeg_stream(
-    State(state): State<Arc<AppState>>,
-) -> impl IntoResponse {
-    let boundary = "frame";
-
-    // 订阅视频帧
-    let rx = state.stream_manager.subscribe_mjpeg();
-
-    // 创建流
-    let stream = async_stream::stream! {
-        let mut rx = rx;
-        while let Ok(frame) = rx.recv().await {
-            let header = format!(
-                "--{}\r\nContent-Type: image/jpeg\r\nContent-Length: {}\r\n\r\n",
-                boundary,
-                frame.data.len()
-            );
-            yield Ok::<_, std::io::Error>(Bytes::from(header));
-            yield Ok(frame.data.clone());
-            yield Ok(Bytes::from("\r\n"));
-        }
-    };
-
-    (
-        [(
-            header::CONTENT_TYPE,
-            format!("multipart/x-mixed-replace; boundary={}", boundary),
-        )],
-        Body::from_stream(stream),
-    )
-}
-```
-
----
-
-## 7. 错误处理
-
-```rust
-impl IntoResponse for AppError {
-    fn into_response(self) -> Response {
-        let (status, message) = match self {
-            AppError::AuthError => (StatusCode::UNAUTHORIZED, "Authentication failed"),
-            AppError::Unauthorized => (StatusCode::UNAUTHORIZED, "Unauthorized"),
-            AppError::Forbidden => (StatusCode::FORBIDDEN, "Forbidden"),
-            AppError::NotFound(msg) => (StatusCode::NOT_FOUND, msg.as_str()),
-            AppError::BadRequest(msg) => (StatusCode::BAD_REQUEST, msg.as_str()),
-            AppError::Internal(err) => {
-                tracing::error!("Internal error: {:?}", err);
-                (StatusCode::INTERNAL_SERVER_ERROR, "Internal server error")
-            }
-            // ...
-        };
-
-        (status, Json(json!({ "error": message }))).into_response()
-    }
-}
-```
-
----
-
-## 8. 请求提取器
-
-```rust
-// 从 Cookie 获取会话
-pub struct AuthUser(pub Session);
-
-#[async_trait]
-impl<S> FromRequestParts<S> for AuthUser
-where
-    S: Send + Sync,
-{
-    type Rejection = AppError;
-
-    async fn from_request_parts(parts: &mut Parts, state: &S) -> Result<Self, Self::Rejection> {
-        let cookies = Cookies::from_request_parts(parts, state).await?;
-        let token = cookies
-            .get("session_id")
-            .map(|c| c.value().to_string())
-            .ok_or(AppError::Unauthorized)?;
-
-        let state = parts.extensions.get::<Arc<AppState>>().unwrap();
-        let session = state.sessions
-            .get_session(&token)
-            .ok_or(AppError::Unauthorized)?;
-
-        Ok(AuthUser(session))
-    }
-}
-```
-
----
-
-## 9. 中间件
-
-### 9.1 认证中间件
-
-```rust
-pub async fn auth_middleware(
-    State(state): State<Arc<AppState>>,
-    cookies: Cookies,
-    mut request: Request,
-    next: Next,
-) -> Response {
-    let token = cookies
-        .get("session_id")
-        .map(|c| c.value().to_string());
-
-    if let Some(session) = token.and_then(|t| state.sessions.get_session(&t)) {
-        request.extensions_mut().insert(session);
-        next.run(request).await
-    } else {
-        StatusCode::UNAUTHORIZED.into_response()
-    }
-}
-```
-
-### 9.2 Admin 中间件
-
-```rust
-pub async fn admin_middleware(
-    Extension(session): Extension<Session>,
-    request: Request,
-    next: Next,
-) -> Response {
-    if session.role == UserRole::Admin {
-        next.run(request).await
-    } else {
-        StatusCode::FORBIDDEN.into_response()
-    }
-}
-```
-
----
-
-## 10. HTTPS 支持
-
-```rust
-// 使用 axum-server 提供 TLS
-let tls_config = RustlsConfig::from_pem_file(cert_path, key_path).await?;
-
-axum_server::bind_rustls(addr, tls_config)
-    .serve(app.into_make_service())
-    .await?;
-
-// 或自动生成自签名证书
-let (cert, key) = generate_self_signed_cert()?;
-let tls_config = RustlsConfig::from_pem(cert, key).await?;
-```

docs/modules/webrtc.md

@@ -1,789 +0,0 @@
-# WebRTC 模块文档
-
-## 1. 模块概述
-
-WebRTC 模块提供低延迟的实时音视频流传输，支持多种视频编码格式和 DataChannel HID 控制。
-
-### 1.1 主要功能
-
-- WebRTC 会话管理
-- 多编码器支持 (H264/H265/VP8/VP9)
-- 音频轨道 (Opus)
-- DataChannel HID
-- ICE/STUN/TURN 支持
-
-### 1.2 文件结构
-
-```
-src/webrtc/
-├── mod.rs                  # 模块导出
-├── webrtc_streamer.rs      # 统一管理器 (35KB)
-├── universal_session.rs    # 会话管理 (32KB)
-├── unified_video_track.rs  # 统一视频轨道 (15KB)
-├── video_track.rs          # 视频轨道 (19KB)
-├── rtp.rs                  # RTP 打包 (24KB)
-├── h265_payloader.rs       # H265 RTP (15KB)
-├── peer.rs                 # PeerConnection (17KB)
-├── config.rs               # 配置 (3KB)
-├── signaling.rs            # 信令 (5KB)
-├── session.rs              # 会话基类 (8KB)
-└── track.rs                # 轨道基类 (11KB)
-```
-
----
-
-## 2. 架构设计
-
-### 2.1 整体架构
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                         WebRTC Architecture                                  │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-                Browser
-                   │
-                   │ HTTP Signaling
-                   ▼
-         ┌─────────────────┐
-         │ WebRtcStreamer  │
-         │(webrtc_streamer)│
-         └────────┬────────┘
-                  │
-    ┌─────────────┼─────────────┐
-    │             │             │
-    ▼             ▼             ▼
-┌────────┐  ┌────────┐    ┌────────┐
-│Session │  │Session │    │Session │
-│   1    │  │   2    │    │   N    │
-└───┬────┘  └───┬────┘    └───┬────┘
-    │           │             │
-    ├───────────┼─────────────┤
-    │           │             │
-    ▼           ▼             ▼
-┌─────────────────────────────────────┐
-│       SharedVideoPipeline           │
-│  ┌─────┐ ┌─────┐ ┌─────┐ ┌─────┐  │
-│  │H264 │ │H265 │ │VP8  │ │VP9  │  │
-│  └─────┘ └─────┘ └─────┘ └─────┘  │
-└─────────────────────────────────────┘
-                  │
-                  ▼
-         ┌────────────────┐
-         │ VideoCapturer  │
-         └────────────────┘
-```
-
-### 2.2 会话生命周期
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                      Session Lifecycle                                       │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-1. 创建会话
-   POST /webrtc/session
-        │
-        ▼
-   ┌─────────────────┐
-   │ Create Session  │
-   │ Generate ID     │
-   └────────┬────────┘
-            │
-            ▼
-   { session_id: "..." }
-
-2. 发送 Offer
-   POST /webrtc/offer
-   { session_id, codec, offer_sdp }
-        │
-        ▼
-   ┌─────────────────┐
-   │ Process Offer   │
-   │ Create Answer   │
-   │ Setup Tracks    │
-   └────────┬────────┘
-            │
-            ▼
-   { answer_sdp, ice_candidates }
-
-3. ICE 候选
-   POST /webrtc/ice
-   { session_id, candidate }
-        │
-        ▼
-   ┌─────────────────┐
-   │ Add ICE         │
-   │ Candidate       │
-   └─────────────────┘
-
-4. 连接建立
-   ┌─────────────────┐
-   │ DTLS Handshake  │
-   │ SRTP Setup      │
-   │ DataChannel     │
-   └────────┬────────┘
-            │
-            ▼
-   开始传输视频/音频
-
-5. 关闭会话
-   POST /webrtc/close
-   { session_id }
-        │
-        ▼
-   ┌─────────────────┐
-   │ Cleanup         │
-   │ Release         │
-   └─────────────────┘
-```
-
----
-
-## 3. 核心组件
-
-### 3.1 WebRtcStreamer (webrtc_streamer.rs)
-
-WebRTC 服务主类。
-
-```rust
-pub struct WebRtcStreamer {
-    /// 会话映射
-    sessions: Arc<RwLock<HashMap<String, Arc<UniversalSession>>>>,
-
-    /// 共享视频管道
-    video_pipeline: Arc<SharedVideoPipeline>,
-
-    /// 共享音频管道
-    audio_pipeline: Arc<SharedAudioPipeline>,
-
-    /// HID 控制器
-    hid: Arc<HidController>,
-
-    /// 配置
-    config: WebRtcConfig,
-
-    /// 事件总线
-    events: Arc<EventBus>,
-}
-
-impl WebRtcStreamer {
-    /// 创建流服务
-    pub async fn new(
-        video_pipeline: Arc<SharedVideoPipeline>,
-        audio_pipeline: Arc<SharedAudioPipeline>,
-        hid: Arc<HidController>,
-        config: WebRtcConfig,
-        events: Arc<EventBus>,
-    ) -> Result<Self>;
-
-    /// 创建会话
-    pub async fn create_session(&self) -> Result<String>;
-
-    /// 处理 Offer
-    pub async fn process_offer(
-        &self,
-        session_id: &str,
-        offer: &str,
-        codec: VideoCodec,
-    ) -> Result<OfferResponse>;
-
-    /// 添加 ICE 候选
-    pub async fn add_ice_candidate(
-        &self,
-        session_id: &str,
-        candidate: &str,
-    ) -> Result<()>;
-
-    /// 关闭会话
-    pub async fn close_session(&self, session_id: &str) -> Result<()>;
-
-    /// 获取会话列表
-    pub fn list_sessions(&self) -> Vec<SessionInfo>;
-
-    /// 获取统计信息
-    pub fn get_stats(&self) -> WebRtcStats;
-}
-
-pub struct OfferResponse {
-    pub answer_sdp: String,
-    pub ice_candidates: Vec<String>,
-}
-
-pub struct WebRtcStats {
-    pub active_sessions: usize,
-    pub total_bytes_sent: u64,
-    pub avg_bitrate: u32,
-}
-```
-
-### 3.2 UniversalSession (universal_session.rs)
-
-单个 WebRTC 会话。
-
-```rust
-pub struct UniversalSession {
-    /// 会话 ID
-    id: String,
-
-    /// PeerConnection
-    peer: Arc<RTCPeerConnection>,
-
-    /// 视频轨道
-    video_track: Arc<UniversalVideoTrack>,
-
-    /// 音频轨道
-    audio_track: Option<Arc<dyn TrackLocal>>,
-
-    /// HID DataChannel
-    hid_channel: Arc<RwLock<Option<Arc<RTCDataChannel>>>>,
-
-    /// HID 处理器
-    hid_handler: Arc<HidDataChannelHandler>,
-
-    /// 状态
-    state: Arc<RwLock<SessionState>>,
-
-    /// 编码器类型
-    codec: VideoCodec,
-}
-
-impl UniversalSession {
-    /// 创建会话
-    pub async fn new(
-        id: String,
-        config: &WebRtcConfig,
-        video_pipeline: Arc<SharedVideoPipeline>,
-        audio_pipeline: Arc<SharedAudioPipeline>,
-        hid_handler: Arc<HidDataChannelHandler>,
-        codec: VideoCodec,
-    ) -> Result<Self>;
-
-    /// 处理 Offer SDP
-    pub async fn handle_offer(&self, offer_sdp: &str) -> Result<String>;
-
-    /// 添加 ICE 候选
-    pub async fn add_ice_candidate(&self, candidate: &str) -> Result<()>;
-
-    /// 获取 ICE 候选
-    pub fn get_ice_candidates(&self) -> Vec<String>;
-
-    /// 关闭会话
-    pub async fn close(&self) -> Result<()>;
-
-    /// 获取状态
-    pub fn state(&self) -> SessionState;
-
-    /// 获取统计
-    pub fn stats(&self) -> SessionStats;
-}
-
-pub enum SessionState {
-    New,
-    Connecting,
-    Connected,
-    Disconnected,
-    Failed,
-    Closed,
-}
-
-pub struct SessionStats {
-    pub bytes_sent: u64,
-    pub packets_sent: u64,
-    pub bitrate: u32,
-    pub frame_rate: f32,
-    pub round_trip_time: Duration,
-}
-```
-
-### 3.3 VideoTrack (video_track.rs)
-
-视频轨道封装。
-
-```rust
-pub struct UniversalVideoTrack {
-    /// 轨道 ID
-    id: String,
-
-    /// 编码类型
-    codec: VideoCodec,
-
-    /// RTP 发送器
-    rtp_sender: Arc<RtpSender>,
-
-    /// 帧计数
-    frame_count: AtomicU64,
-
-    /// 统计
-    stats: Arc<RwLock<TrackStats>>,
-}
-
-impl UniversalVideoTrack {
-    /// 创建轨道
-    pub fn new(id: &str, codec: VideoCodec) -> Result<Self>;
-
-    /// 发送编码帧
-    pub async fn send_frame(&self, frame: &EncodedFrame) -> Result<()>;
-
-    /// 获取 RTP 参数
-    pub fn rtp_params(&self) -> RtpParameters;
-
-    /// 获取统计
-    pub fn stats(&self) -> TrackStats;
-}
-
-pub struct TrackStats {
-    pub frames_sent: u64,
-    pub bytes_sent: u64,
-    pub packets_sent: u64,
-    pub packet_loss: f32,
-}
-```
-
-### 3.4 RTP 打包 (rtp.rs)
-
-RTP 协议实现。
-
-```rust
-pub struct RtpPacketizer {
-    /// SSRC
-    ssrc: u32,
-
-    /// 序列号
-    sequence: u16,
-
-    /// 时间戳
-    timestamp: u32,
-
-    /// 负载类型
-    payload_type: u8,
-
-    /// 时钟频率
-    clock_rate: u32,
-}
-
-impl RtpPacketizer {
-    /// 创建打包器
-    pub fn new(codec: VideoCodec) -> Self;
-
-    /// 打包 H264 帧
-    pub fn packetize_h264(&mut self, frame: &[u8], keyframe: bool) -> Vec<Vec<u8>>;
-
-    /// 打包 VP8 帧
-    pub fn packetize_vp8(&mut self, frame: &[u8], keyframe: bool) -> Vec<Vec<u8>>;
-
-    /// 打包 VP9 帧
-    pub fn packetize_vp9(&mut self, frame: &[u8], keyframe: bool) -> Vec<Vec<u8>>;
-
-    /// 打包 Opus 帧
-    pub fn packetize_opus(&mut self, frame: &[u8]) -> Vec<u8>;
-}
-
-/// H264 NAL 单元分片
-pub struct H264Fragmenter;
-
-impl H264Fragmenter {
-    /// 分片大于 MTU 的 NAL
-    pub fn fragment(nal: &[u8], mtu: usize) -> Vec<Vec<u8>>;
-
-    /// 创建 STAP-A 聚合
-    pub fn aggregate(nals: &[&[u8]]) -> Vec<u8>;
-}
-```
-
-### 3.5 H265 打包器 (h265_payloader.rs)
-
-H265/HEVC RTP 打包。
-
-```rust
-pub struct H265Payloader {
-    /// MTU 大小
-    mtu: usize,
-}
-
-impl H265Payloader {
-    /// 创建打包器
-    pub fn new(mtu: usize) -> Self;
-
-    /// 打包 H265 帧
-    pub fn packetize(&self, frame: &[u8]) -> Vec<Vec<u8>>;
-
-    /// 分析 NAL 单元类型
-    fn get_nal_type(nal: &[u8]) -> u8;
-
-    /// 是否需要分片
-    fn needs_fragmentation(&self, nal: &[u8]) -> bool;
-}
-```
-
----
-
-## 4. 信令协议
-
-### 4.1 创建会话
-
-```
-POST /api/webrtc/session
-Content-Type: application/json
-
-{}
-
-Response:
-{
-    "session_id": "abc123-def456"
-}
-```
-
-### 4.2 发送 Offer
-
-```
-POST /api/webrtc/offer
-Content-Type: application/json
-
-{
-    "session_id": "abc123-def456",
-    "video_codec": "h264",
-    "enable_audio": true,
-    "offer_sdp": "v=0\r\no=- ..."
-}
-
-Response:
-{
-    "answer_sdp": "v=0\r\no=- ...",
-    "ice_candidates": [
-        "candidate:1 1 UDP ...",
-        "candidate:2 1 TCP ..."
-    ]
-}
-```
-
-### 4.3 ICE 候选
-
-```
-POST /api/webrtc/ice
-Content-Type: application/json
-
-{
-    "session_id": "abc123-def456",
-    "candidate": "candidate:1 1 UDP ..."
-}
-
-Response:
-{
-    "success": true
-}
-```
-
-### 4.4 关闭会话
-
-```
-POST /api/webrtc/close
-Content-Type: application/json
-
-{
-    "session_id": "abc123-def456"
-}
-
-Response:
-{
-    "success": true
-}
-```
-
----
-
-## 5. 配置
-
-```rust
-#[derive(Serialize, Deserialize)]
-#[typeshare]
-pub struct WebRtcConfig {
-    /// STUN 服务器
-    pub stun_servers: Vec<String>,
-
-    /// TURN 服务器
-    pub turn_servers: Vec<TurnServer>,
-
-    /// 默认编码器
-    pub default_codec: VideoCodec,
-
-    /// 码率 (kbps)
-    pub bitrate_kbps: u32,
-
-    /// GOP 大小
-    pub gop_size: u32,
-
-    /// 启用音频
-    pub enable_audio: bool,
-
-    /// 启用 DataChannel HID
-    pub enable_datachannel_hid: bool,
-}
-
-pub struct TurnServer {
-    pub url: String,
-    pub username: String,
-    pub password: String,
-}
-
-impl Default for WebRtcConfig {
-    fn default() -> Self {
-        Self {
-            stun_servers: vec!["stun:stun.l.google.com:19302".to_string()],
-            turn_servers: vec![],
-            default_codec: VideoCodec::H264,
-            bitrate_kbps: 2000,
-            gop_size: 60,
-            enable_audio: true,
-            enable_datachannel_hid: true,
-        }
-    }
-}
-```
-
----
-
-## 6. DataChannel HID
-
-### 6.1 消息格式
-
-```javascript
-// 键盘事件
-{
-    "type": "keyboard",
-    "keys": ["KeyA", "KeyB"],
-    "modifiers": {
-        "ctrl": false,
-        "shift": true,
-        "alt": false,
-        "meta": false
-    }
-}
-
-// 鼠标事件
-{
-    "type": "mouse",
-    "x": 16384,
-    "y": 16384,
-    "button": "left",
-    "event": "press"
-}
-
-// 鼠标模式
-{
-    "type": "mouse_mode",
-    "mode": "absolute"
-}
-```
-
-### 6.2 处理流程
-
-```
-DataChannel Message
-        │
-        ▼
-┌─────────────────┐
-│Parse JSON Event │
-└────────┬────────┘
-         │
-         ▼
-┌─────────────────┐
-│HidDataChannel   │
-│   Handler       │
-└────────┬────────┘
-         │
-         ▼
-┌─────────────────┐
-│ HidController   │
-└────────┬────────┘
-         │
-         ▼
-    USB/Serial
-```
-
----
-
-## 7. 支持的编码器
-
-| 编码器 | RTP 负载类型 | 时钟频率 | 硬件加速 |
-|--------|-------------|---------|---------|
-| H264 | 96 (动态) | 90000 | VAAPI/RKMPP/V4L2 |
-| H265 | 97 (动态) | 90000 | VAAPI |
-| VP8 | 98 (动态) | 90000 | VAAPI |
-| VP9 | 99 (动态) | 90000 | VAAPI |
-| Opus | 111 (动态) | 48000 | 无 (软件) |
-
----
-
-## 8. 错误处理
-
-```rust
-#[derive(Debug, thiserror::Error)]
-pub enum WebRtcError {
-    #[error("Session not found: {0}")]
-    SessionNotFound(String),
-
-    #[error("Session already exists")]
-    SessionExists,
-
-    #[error("Invalid SDP: {0}")]
-    InvalidSdp(String),
-
-    #[error("Codec not supported: {0}")]
-    CodecNotSupported(String),
-
-    #[error("ICE failed")]
-    IceFailed,
-
-    #[error("DTLS failed")]
-    DtlsFailed,
-
-    #[error("Track error: {0}")]
-    TrackError(String),
-
-    #[error("Connection closed")]
-    ConnectionClosed,
-}
-```
-
----
-
-## 9. 使用示例
-
-### 9.1 创建会话
-
-```rust
-let streamer = WebRtcStreamer::new(
-    video_pipeline,
-    audio_pipeline,
-    hid,
-    WebRtcConfig::default(),
-    events,
-).await?;
-
-// 创建会话
-let session_id = streamer.create_session().await?;
-
-// 处理 Offer
-let response = streamer.process_offer(
-    &session_id,
-    &offer_sdp,
-    VideoCodec::H264,
-).await?;
-
-println!("Answer: {}", response.answer_sdp);
-```
-
-### 9.2 前端连接
-
-```javascript
-// 创建 PeerConnection
-const pc = new RTCPeerConnection({
-    iceServers: [{ urls: 'stun:stun.l.google.com:19302' }]
-});
-
-// 创建 DataChannel
-const hidChannel = pc.createDataChannel('hid');
-
-// 创建 Offer
-const offer = await pc.createOffer();
-await pc.setLocalDescription(offer);
-
-// 发送到服务器
-const response = await fetch('/api/webrtc/offer', {
-    method: 'POST',
-    body: JSON.stringify({
-        session_id,
-        video_codec: 'h264',
-        offer_sdp: offer.sdp
-    })
-});
-
-const { answer_sdp, ice_candidates } = await response.json();
-
-// 设置 Answer
-await pc.setRemoteDescription({ type: 'answer', sdp: answer_sdp });
-
-// 添加 ICE 候选
-for (const candidate of ice_candidates) {
-    await pc.addIceCandidate({ candidate });
-}
-```
-
----
-
-## 10. 管道重启机制
-
-当码率或编码器配置变更时，视频管道需要重启。WebRTC 模块实现了自动重连机制：
-
-### 10.1 重启流程
-
-```
-用户修改码率/编码器
-        │
-        ▼
-┌─────────────────────┐
-│ set_bitrate_preset  │
-│ 1. 保存 frame_tx    │  ← 关键：在停止前保存
-│ 2. 停止旧管道       │
-│ 3. 等待清理         │
-│ 4. 恢复 frame_tx    │
-│ 5. 创建新管道       │
-│ 6. 重连所有会话     │
-└─────────────────────┘
-        │
-        ▼
-所有 WebRTC 会话自动恢复
-```
-
-### 10.2 关键代码
-
-```rust
-pub async fn set_bitrate_preset(self: &Arc<Self>, preset: BitratePreset) -> Result<()> {
-    // 保存 frame_tx (监控任务会在管道停止后清除它)
-    let saved_frame_tx = self.video_frame_tx.read().await.clone();
-
-    // 停止管道
-    pipeline.stop();
-    tokio::time::sleep(Duration::from_millis(100)).await;
-
-    // 恢复 frame_tx 并重建管道
-    if let Some(tx) = saved_frame_tx {
-        *self.video_frame_tx.write().await = Some(tx.clone());
-        let pipeline = self.ensure_video_pipeline(tx).await?;
-
-        // 重连所有会话
-        for session in sessions {
-            session.start_from_video_pipeline(pipeline.subscribe(), ...).await;
-        }
-    }
-}
-```
-
----
-
-## 11. 常见问题
-
-### Q: 连接超时?
-
-1. 检查 STUN/TURN 配置
-2. 检查防火墙设置
-3. 尝试使用 TURN 中继
-
-### Q: 视频卡顿?
-
-1. 降低分辨率/码率
-2. 检查网络带宽
-3. 使用硬件编码
-
-### Q: 音频不同步?
-
-1. 检查时间戳同步
-2. 调整缓冲区大小
-3. 使用 NTP 同步
-
-### Q: 切换码率后视频静止?
-
-1. 检查管道重启逻辑是否正确保存了 `video_frame_tx`
-2. 确认会话重连成功
-3. 查看日志中是否有 "Reconnecting session" 信息

docs/report/hwcodec/00-architecture.md

@@ -1,477 +0,0 @@
-# hwcodec 技术架构报告
-
-## 1. 项目概述
-
-hwcodec 是一个基于 FFmpeg 的硬件视频编解码库，来源于 RustDesk 项目并针对 One-KVM 进行了深度定制优化。该库专注于 IP-KVM 场景，提供 Windows 和 Linux 平台的 GPU 加速视频编码能力。
-
-### 1.1 项目位置
-
-```
-libs/hwcodec/
-├── src/          # Rust 源代码
-└── cpp/          # C++ 源代码
-```
-
-### 1.2 核心特性
-
-- **多编解码格式支持**: H.264, H.265 (HEVC), VP8, VP9, MJPEG
-- **硬件加速**: NVENC, AMF, Intel QSV (Windows), VAAPI, RKMPP, V4L2 M2M (Linux)
-- **跨平台**: Windows, Linux (x86_64, ARM64, ARMv7)
-- **低延迟优化**: 专为实时流媒体场景设计
-- **Rust/C++ 混合架构**: Rust 提供安全的上层 API，C++ 实现底层编解码逻辑
-- **IP-KVM 专用**: 解码仅支持 MJPEG（采集卡输出格式），编码支持多种硬件加速
-
-## 2. 架构设计
-
-### 2.1 整体架构图
-
-```
-┌─────────────────────────────────────────────────────────────┐
-│                     Rust API Layer                          │
-│  ┌─────────────────────────────────────────────────────────┐│
-│  │                    ffmpeg_ram module                     ││
-│  │              (encode.rs + decode.rs)                     ││
-│  └──────────────────────────┬──────────────────────────────┘│
-├─────────────────────────────┼───────────────────────────────┤
-│                             │                               │
-│                  FFI Bindings (bindgen)                     │
-│                             ▼                               │
-├─────────────────────────────────────────────────────────────┤
-│                     C++ Core Layer                          │
-│  ┌─────────────────────────────────────────────────────────┐│
-│  │               ffmpeg_ram (encode/decode)                 ││
-│  └──────────────────────────┬──────────────────────────────┘│
-├─────────────────────────────┼───────────────────────────────┤
-│                             │                               │
-│                             ▼                               │
-│  ┌──────────────────────────────────────────────────────┐   │
-│  │                    FFmpeg Libraries                   │   │
-│  │  libavcodec │ libavutil │ libavformat │ libswscale   │   │
-│  └──────────────────────────────────────────────────────┘   │
-│                             │                               │
-├─────────────────────────────┼───────────────────────────────┤
-│         Hardware Acceleration Backends                      │
-│  ┌────────┐ ┌─────┐ ┌─────┐ ┌───────┐ ┌───────┐ ┌───────┐  │
-│  │ NVENC  │ │ AMF │ │ QSV │ │ VAAPI │ │ RKMPP │ │V4L2M2M│  │
-│  └────────┘ └─────┘ └─────┘ └───────┘ └───────┘ └───────┘  │
-└─────────────────────────────────────────────────────────────┘
-```
-
-### 2.2 模块职责
-
-| 模块 | 职责 | 关键文件 |
-|------|------|----------|
-| `ffmpeg_ram` | 基于 RAM 的软件/硬件编解码 | `src/ffmpeg_ram/` |
-| `common` | 公共定义和 GPU 检测 | `src/common.rs` |
-| `ffmpeg` | FFmpeg 日志和初始化 | `src/ffmpeg.rs` |
-
-## 3. 模块详细分析
-
-### 3.1 库入口 (lib.rs)
-
-```rust
-// libs/hwcodec/src/lib.rs
-pub mod common;
-pub mod ffmpeg;
-pub mod ffmpeg_ram;
-```
-
-**功能**:
-- 导出所有子模块
-- 提供 C 日志回调函数
-
-### 3.2 公共模块 (common.rs)
-
-**核心类型**:
-
-```rust
-pub enum Driver {
-    NV,      // NVIDIA
-    AMF,     // AMD
-    MFX,     // Intel
-    FFMPEG,  // 软件编码
-}
-```
-
-**GPU 检测函数**:
-
-| 平台 | 检测函数 | 检测方式 |
-|------|----------|----------|
-| Linux | `linux_support_nv()` | 加载 libcuda.so + libnvidia-encode.so |
-| Linux | `linux_support_amd()` | 检查 `libamfrt64.so.1` |
-| Linux | `linux_support_intel()` | 检查 `libvpl.so`/`libmfx.so` |
-| Linux | `linux_support_rkmpp()` | 检查 `/dev/mpp_service` |
-| Linux | `linux_support_v4l2m2m()` | 检查 `/dev/video*` 设备 |
-
-### 3.3 FFmpeg RAM 编码模块
-
-#### 3.3.1 Rust 层 (src/ffmpeg_ram/)
-
-**CodecInfo 结构体**:
-
-```rust
-pub struct CodecInfo {
-    pub name: String,           // 编码器名称如 "h264_nvenc"
-    pub mc_name: Option<String>, // MediaCodec 名称 (Android)
-    pub format: DataFormat,      // H264/H265/VP8/VP9/MJPEG
-    pub priority: i32,           // 优先级 (Best=0, Good=1, Normal=2, Soft=3, Bad=4)
-    pub hwdevice: AVHWDeviceType, // 硬件设备类型
-}
-```
-
-**EncodeContext 结构体**:
-
-```rust
-pub struct EncodeContext {
-    pub name: String,          // 编码器名称
-    pub width: i32,            // 视频宽度
-    pub height: i32,           // 视频高度
-    pub pixfmt: AVPixelFormat, // 像素格式 (NV12/YUV420P)
-    pub align: i32,            // 内存对齐
-    pub fps: i32,              // 帧率
-    pub gop: i32,              // GOP 大小
-    pub rc: RateControl,       // 码率控制模式
-    pub quality: Quality,      // 质量级别
-    pub kbs: i32,              // 目标码率 (kbps)
-    pub q: i32,                // 量化参数
-    pub thread_count: i32,     // 线程数
-}
-```
-
-**Encoder 类**:
-
-```rust
-pub struct Encoder {
-    codec: *mut c_void,           // C++ 编码器指针
-    frames: *mut Vec<EncodeFrame>, // 编码输出帧
-    pub ctx: EncodeContext,
-    pub linesize: Vec<i32>,       // 行大小
-    pub offset: Vec<i32>,         // 平面偏移
-    pub length: i32,              // 总数据长度
-}
-```
-
-**核心方法**:
-
-| 方法 | 功能 |
-|------|------|
-| `Encoder::new()` | 创建编码器实例 |
-| `Encoder::encode()` | 编码一帧 YUV 数据 |
-| `Encoder::set_bitrate()` | 动态调整码率 |
-| `Encoder::request_keyframe()` | 请求下一帧为关键帧 |
-| `Encoder::available_encoders()` | 检测系统可用编码器 |
-
-#### 3.3.2 C++ 层 (cpp/ffmpeg_ram/)
-
-**FFmpegRamEncoder 类** (ffmpeg_ram_encode.cpp):
-
-```cpp
-class FFmpegRamEncoder {
-    AVCodecContext *c_ = NULL;     // FFmpeg 编码上下文
-    AVFrame *frame_ = NULL;        // 输入帧
-    AVPacket *pkt_ = NULL;         // 编码输出包
-    AVBufferRef *hw_device_ctx_;   // 硬件设备上下文
-    AVFrame *hw_frame_ = NULL;     // 硬件帧
-    bool force_keyframe_ = false;  // 强制关键帧标志
-
-    // 主要方法
-    bool init(int *linesize, int *offset, int *length);
-    int encode(const uint8_t *data, int length, const void *obj, uint64_t ms);
-    int do_encode(AVFrame *frame, const void *obj, int64_t ms);
-    int set_hwframe_ctx();         // 设置硬件帧上下文
-};
-```
-
-**编码流程**:
-
-```
-输入 YUV 数据
-      │
-      ▼
-fill_frame() - 填充 AVFrame 数据指针
-      │
-      ├──▶ (软件编码) 直接使用 frame_
-      │
-      └──▶ (硬件编码) av_hwframe_transfer_data() 传输到 GPU
-                            │
-                            ▼
-                    使用 hw_frame_
-                            │
-                            ▼
-              avcodec_send_frame() - 发送帧到编码器
-                            │
-                            ▼
-              avcodec_receive_packet() - 获取编码数据
-                            │
-                            ▼
-                    callback() - 回调输出
-```
-
-### 3.4 FFmpeg RAM 解码模块
-
-**IP-KVM 专用设计**: 解码器仅支持 MJPEG 软件解码，因为 IP-KVM 场景中视频采集卡输出的是 MJPEG 格式。
-
-**Decoder 类**:
-
-```rust
-pub struct Decoder {
-    codec: *mut c_void,
-    frames: *mut Vec<DecodeFrame>,
-    pub ctx: DecodeContext,
-}
-
-pub struct DecodeFrame {
-    pub pixfmt: AVPixelFormat,
-    pub width: i32,
-    pub height: i32,
-    pub data: Vec<Vec<u8>>,   // Y, U, V 平面数据
-    pub linesize: Vec<i32>,
-    pub key: bool,
-}
-```
-
-**available_decoders()**: 仅返回 MJPEG 软件解码器
-
-```rust
-pub fn available_decoders() -> Vec<CodecInfo> {
-    vec![CodecInfo {
-        name: "mjpeg".to_owned(),
-        format: MJPEG,
-        hwdevice: AV_HWDEVICE_TYPE_NONE,
-        priority: Priority::Best as _,
-        ..Default::default()
-    }]
-}
-```
-
-**C++ 实现** (ffmpeg_ram_decode.cpp):
-
-```cpp
-class FFmpegRamDecoder {
-    AVCodecContext *c_ = NULL;
-    AVFrame *frame_ = NULL;      // 解码输出帧
-    AVPacket *pkt_ = NULL;
-
-    int do_decode(const void *obj);
-};
-```
-
-**解码流程**:
-
-```
-输入 MJPEG 数据
-      │
-      ▼
-avcodec_send_packet() - 发送数据到解码器
-      │
-      ▼
-avcodec_receive_frame() - 获取解码帧 (YUV420P)
-      │
-      ▼
-callback() - 回调输出
-```
-
-## 4. 硬件加速支持
-
-### 4.1 支持的硬件加速后端
-
-| 后端 | 厂商 | 平台 | 编码器名称 |
-|------|------|------|-----------|
-| NVENC | NVIDIA | Windows/Linux | h264_nvenc, hevc_nvenc |
-| AMF | AMD | Windows/Linux | h264_amf, hevc_amf |
-| QSV | Intel | Windows | h264_qsv, hevc_qsv |
-| VAAPI | 通用 | Linux | h264_vaapi, hevc_vaapi, vp8_vaapi, vp9_vaapi |
-| RKMPP | Rockchip | Linux | h264_rkmpp, hevc_rkmpp |
-| V4L2 M2M | ARM SoC | Linux | h264_v4l2m2m, hevc_v4l2m2m |
-
-### 4.2 硬件检测逻辑 (Linux)
-
-```cpp
-// libs/hwcodec/cpp/common/platform/linux/linux.cpp
-
-// NVIDIA 检测 - 简化的动态库检测
-int linux_support_nv() {
-    void *handle = dlopen("libcuda.so.1", RTLD_LAZY);
-    if (!handle) handle = dlopen("libcuda.so", RTLD_LAZY);
-    if (!handle) return -1;
-    dlclose(handle);
-
-    handle = dlopen("libnvidia-encode.so.1", RTLD_LAZY);
-    if (!handle) handle = dlopen("libnvidia-encode.so", RTLD_LAZY);
-    if (!handle) return -1;
-    dlclose(handle);
-    return 0;
-}
-
-// AMD 检测 - 检查 AMF 运行时库
-int linux_support_amd() {
-    void *handle = dlopen("libamfrt64.so.1", RTLD_LAZY);
-    if (!handle) return -1;
-    dlclose(handle);
-    return 0;
-}
-
-// Intel 检测 - 检查 VPL/MFX 库
-int linux_support_intel() {
-    const char *libs[] = {"libvpl.so", "libmfx.so", ...};
-    // 任一成功加载则返回 0
-}
-
-// Rockchip MPP 检测 - 检查设备节点
-int linux_support_rkmpp() {
-    if (access("/dev/mpp_service", F_OK) == 0) return 0;
-    if (access("/dev/rga", F_OK) == 0) return 0;
-    return -1;
-}
-
-// V4L2 M2M 检测 - 检查视频设备
-int linux_support_v4l2m2m() {
-    const char *devices[] = {"/dev/video10", "/dev/video11", ...};
-    // 任一设备可打开则返回 0
-}
-```
-
-### 4.3 编码器优先级系统
-
-```rust
-pub enum Priority {
-    Best = 0,    // 最高优先级 (硬件加速)
-    Good = 1,    // 良好 (VAAPI, 部分硬件)
-    Normal = 2,  // 普通
-    Soft = 3,    // 软件编码
-    Bad = 4,     // 最低优先级
-}
-```
-
-**优先级分配**:
-
-| 编码器 | 优先级 |
-|--------|--------|
-| h264_nvenc, hevc_nvenc | Best (0) |
-| h264_amf, hevc_amf | Best (0) |
-| h264_qsv, hevc_qsv | Best (0) |
-| h264_rkmpp, hevc_rkmpp | Best (0) |
-| h264_vaapi, hevc_vaapi | Good (1) |
-| h264_v4l2m2m, hevc_v4l2m2m | Good (1) |
-| h264 (x264), hevc (x265) | Soft (3) |
-
-### 4.4 低延迟优化配置
-
-```cpp
-// libs/hwcodec/cpp/common/util.cpp
-
-bool set_lantency_free(void *priv_data, const std::string &name) {
-    // NVENC: 禁用延迟缓冲
-    if (name.find("nvenc") != std::string::npos) {
-        av_opt_set(priv_data, "delay", "0", 0);
-    }
-    // AMF: 设置查询超时
-    if (name.find("amf") != std::string::npos) {
-        av_opt_set(priv_data, "query_timeout", "1000", 0);
-    }
-    // QSV/VAAPI: 设置异步深度为 1
-    if (name.find("qsv") != std::string::npos ||
-        name.find("vaapi") != std::string::npos) {
-        av_opt_set(priv_data, "async_depth", "1", 0);
-    }
-    // libvpx: 实时模式
-    if (name.find("libvpx") != std::string::npos) {
-        av_opt_set(priv_data, "deadline", "realtime", 0);
-        av_opt_set_int(priv_data, "cpu-used", 6, 0);
-        av_opt_set_int(priv_data, "lag-in-frames", 0, 0);
-    }
-    return true;
-}
-```
-
-## 5. 构建系统
-
-### 5.1 Cargo.toml 配置
-
-```toml
-[package]
-name = "hwcodec"
-version = "0.8.0"
-edition = "2021"
-description = "Hardware video codec for IP-KVM (Windows/Linux)"
-
-[features]
-default = []
-
-[dependencies]
-log = "0.4"
-serde_derive = "1.0"
-serde = "1.0"
-serde_json = "1.0"
-
-[build-dependencies]
-cc = "1.0"      # C++ 编译
-bindgen = "0.59" # FFI 绑定生成
-```
-
-### 5.2 构建流程 (build.rs)
-
-```
-build.rs
-    │
-    ├── build_common()
-    │   ├── 生成 common_ffi.rs (bindgen)
-    │   ├── 编译平台相关 C++ 代码
-    │   └── 链接系统库 (stdc++)
-    │
-    └── ffmpeg::build_ffmpeg()
-        ├── 生成 ffmpeg_ffi.rs
-        ├── 链接 FFmpeg 库 (VCPKG 或 pkg-config)
-        └── build_ffmpeg_ram()
-            └── 编译 ffmpeg_ram_encode.cpp, ffmpeg_ram_decode.cpp
-```
-
-### 5.3 FFmpeg 链接方式
-
-| 方式 | 平台 | 条件 |
-|------|------|------|
-| VCPKG 静态链接 | 跨平台 | 设置 `VCPKG_ROOT` 环境变量 |
-| pkg-config 动态链接 | Linux | 默认方式 |
-
-## 6. 与原版 hwcodec 的区别
-
-针对 One-KVM IP-KVM 场景，对原版 RustDesk hwcodec 进行了以下简化：
-
-### 6.1 移除的功能
-
-| 移除项 | 原因 |
-|--------|------|
-| VRAM 模块 | IP-KVM 不需要 GPU 显存直接编解码 |
-| Mux 模块 | IP-KVM 不需要录制到文件 |
-| macOS 支持 | IP-KVM 目标平台不包含 macOS |
-| Android 支持 | IP-KVM 目标平台不包含 Android |
-| 外部 SDK | 简化构建，减少依赖 |
-| 多格式解码 | IP-KVM 仅需 MJPEG 解码 |
-
-### 6.2 保留的功能
-
-| 保留项 | 用途 |
-|--------|------|
-| FFmpeg RAM 编码 | WebRTC 视频编码 |
-| FFmpeg RAM 解码 | MJPEG 采集卡解码 |
-| 硬件加速编码 | 低延迟高效编码 |
-| 软件编码后备 | 无硬件加速时的兜底方案 |
-
-### 6.3 代码量对比
-
-| 指标 | 原版 | 简化版 | 减少 |
-|------|------|--------|------|
-| 外部 SDK | ~9MB | 0 | 100% |
-| C++ 文件 | ~30 | ~10 | ~67% |
-| Rust 模块 | 6 | 3 | 50% |
-
-## 7. 总结
-
-hwcodec 库通过 Rust/C++ 混合架构，在保证内存安全的同时实现了高性能的视频编解码。针对 One-KVM IP-KVM 场景的优化设计特点包括:
-
-1. **精简的编解码器 API**: 解码仅支持 MJPEG，编码支持多种硬件加速
-2. **自动硬件检测**: 运行时自动检测并选择最优的硬件加速后端
-3. **优先级系统**: 基于质量和性能为不同编码器分配优先级
-4. **低延迟优化**: 针对实时流媒体场景进行了专门优化
-5. **简化的构建系统**: 无需外部 SDK，仅依赖系统 FFmpeg
-6. **Windows/Linux 跨平台**: 支持 x86_64、ARM64、ARMv7 架构

docs/report/hwcodec/01-api-reference.md

@@ -1,481 +0,0 @@
-# hwcodec 编解码器 API 详解
-
-## 1. 编码器 API
-
-### 1.1 编码器初始化
-
-#### EncodeContext 参数
-
-```rust
-pub struct EncodeContext {
-    pub name: String,          // 编码器名称
-    pub mc_name: Option<String>, // MediaCodec 名称 (保留字段)
-    pub width: i32,            // 视频宽度 (必须为偶数)
-    pub height: i32,           // 视频高度 (必须为偶数)
-    pub pixfmt: AVPixelFormat, // 像素格式
-    pub align: i32,            // 内存对齐 (通常为 0 或 32)
-    pub fps: i32,              // 帧率
-    pub gop: i32,              // GOP 大小 (关键帧间隔)
-    pub rc: RateControl,       // 码率控制模式
-    pub quality: Quality,      // 编码质量
-    pub kbs: i32,              // 目标码率 (kbps)
-    pub q: i32,                // 量化参数 (CQ 模式)
-    pub thread_count: i32,     // 编码线程数
-}
-```
-
-#### 参数说明
-
-| 参数 | 类型 | 说明 | 推荐值 |
-|------|------|------|--------|
-| `name` | String | FFmpeg 编码器名称 | 见下表 |
-| `width` | i32 | 视频宽度 | 1920 |
-| `height` | i32 | 视频高度 | 1080 |
-| `pixfmt` | AVPixelFormat | 像素格式 | NV12 / YUV420P |
-| `align` | i32 | 内存对齐 | 0 (自动) |
-| `fps` | i32 | 帧率 | 30 |
-| `gop` | i32 | GOP 大小 | 30 (1秒) |
-| `rc` | RateControl | 码率控制 | CBR / VBR |
-| `quality` | Quality | 质量级别 | Medium |
-| `kbs` | i32 | 码率 (kbps) | 2000-8000 |
-| `thread_count` | i32 | 线程数 | 4 |
-
-#### 编码器名称对照表
-
-| 名称 | 格式 | 加速 | 平台 |
-|------|------|------|------|
-| `h264_nvenc` | H.264 | NVIDIA GPU | Windows/Linux |
-| `hevc_nvenc` | H.265 | NVIDIA GPU | Windows/Linux |
-| `h264_amf` | H.264 | AMD GPU | Windows/Linux |
-| `hevc_amf` | H.265 | AMD GPU | Windows/Linux |
-| `h264_qsv` | H.264 | Intel QSV | Windows |
-| `hevc_qsv` | H.265 | Intel QSV | Windows |
-| `h264_vaapi` | H.264 | VAAPI | Linux |
-| `hevc_vaapi` | H.265 | VAAPI | Linux |
-| `vp8_vaapi` | VP8 | VAAPI | Linux |
-| `vp9_vaapi` | VP9 | VAAPI | Linux |
-| `h264_rkmpp` | H.264 | Rockchip MPP | Linux |
-| `hevc_rkmpp` | H.265 | Rockchip MPP | Linux |
-| `h264_v4l2m2m` | H.264 | V4L2 M2M | Linux |
-| `hevc_v4l2m2m` | H.265 | V4L2 M2M | Linux |
-| `h264` | H.264 | 软件 (x264) | 全平台 |
-| `hevc` | H.265 | 软件 (x265) | 全平台 |
-| `libvpx` | VP8 | 软件 | 全平台 |
-| `libvpx-vp9` | VP9 | 软件 | 全平台 |
-| `mjpeg` | MJPEG | 软件 | 全平台 |
-
-### 1.2 创建编码器
-
-```rust
-use hwcodec::ffmpeg_ram::encode::{Encoder, EncodeContext};
-use hwcodec::ffmpeg::{AVPixelFormat};
-use hwcodec::common::{RateControl, Quality};
-
-let ctx = EncodeContext {
-    name: "h264_vaapi".to_string(),
-    mc_name: None,
-    width: 1920,
-    height: 1080,
-    pixfmt: AVPixelFormat::AV_PIX_FMT_NV12,
-    align: 0,
-    fps: 30,
-    gop: 30,
-    rc: RateControl::RC_CBR,
-    quality: Quality::Quality_Medium,
-    kbs: 4000,
-    q: 0,
-    thread_count: 4,
-};
-
-let encoder = Encoder::new(ctx)?;
-println!("Linesize: {:?}", encoder.linesize);
-println!("Offset: {:?}", encoder.offset);
-println!("Buffer length: {}", encoder.length);
-```
-
-### 1.3 编码帧
-
-```rust
-// 准备 YUV 数据
-let yuv_data: Vec<u8> = prepare_yuv_frame();
-
-// 编码
-let pts_ms: i64 = 0; // 时间戳 (毫秒)
-match encoder.encode(&yuv_data, pts_ms) {
-    Ok(frames) => {
-        for frame in frames.iter() {
-            println!("Encoded: {} bytes, pts={}, key={}",
-                     frame.data.len(), frame.pts, frame.key);
-            // 发送 frame.data
-        }
-    }
-    Err(code) => {
-        eprintln!("Encode error: {}", code);
-    }
-}
-```
-
-### 1.4 动态调整码率
-
-```rust
-// 动态调整到 6000 kbps
-encoder.set_bitrate(6000)?;
-```
-
-### 1.5 请求关键帧
-
-```rust
-// 下一帧强制编码为 IDR 帧
-encoder.request_keyframe();
-```
-
-### 1.6 检测可用编码器
-
-```rust
-use hwcodec::ffmpeg_ram::encode::{Encoder, EncodeContext};
-use hwcodec::ffmpeg_ram::CodecInfo;
-
-let ctx = EncodeContext {
-    name: String::new(),
-    mc_name: None,
-    width: 1920,
-    height: 1080,
-    pixfmt: AVPixelFormat::AV_PIX_FMT_NV12,
-    align: 0,
-    fps: 30,
-    gop: 30,
-    rc: RateControl::RC_DEFAULT,
-    quality: Quality::Quality_Default,
-    kbs: 4000,
-    q: 0,
-    thread_count: 4,
-};
-
-let available_encoders = Encoder::available_encoders(ctx, None);
-for encoder in available_encoders {
-    println!("Available: {} (format: {:?}, priority: {})",
-             encoder.name, encoder.format, encoder.priority);
-}
-```
-
-## 2. 解码器 API
-
-### 2.1 IP-KVM 专用设计
-
-在 One-KVM IP-KVM 场景中，解码器仅支持 MJPEG 软件解码。这是因为视频采集卡输出的格式是 MJPEG，不需要其他格式的硬件解码支持。
-
-### 2.2 解码器初始化
-
-#### DecodeContext 参数
-
-```rust
-pub struct DecodeContext {
-    pub name: String,           // 解码器名称 ("mjpeg")
-    pub device_type: AVHWDeviceType, // 硬件设备类型 (NONE)
-    pub thread_count: i32,      // 解码线程数
-}
-```
-
-### 2.3 创建解码器
-
-```rust
-use hwcodec::ffmpeg_ram::decode::{Decoder, DecodeContext};
-use hwcodec::ffmpeg::AVHWDeviceType;
-
-let ctx = DecodeContext {
-    name: "mjpeg".to_string(),
-    device_type: AVHWDeviceType::AV_HWDEVICE_TYPE_NONE,
-    thread_count: 4,
-};
-
-let decoder = Decoder::new(ctx)?;
-```
-
-### 2.4 解码帧
-
-```rust
-// 输入 MJPEG 编码数据
-let mjpeg_data: Vec<u8> = receive_mjpeg_frame();
-
-match decoder.decode(&mjpeg_data) {
-    Ok(frames) => {
-        for frame in frames.iter() {
-            println!("Decoded: {}x{}, format={:?}, key={}",
-                     frame.width, frame.height, frame.pixfmt, frame.key);
-
-            // 访问 YUV 数据
-            let y_plane = &frame.data[0];
-            let u_plane = &frame.data[1];
-            let v_plane = &frame.data[2];
-        }
-    }
-    Err(code) => {
-        eprintln!("Decode error: {}", code);
-    }
-}
-```
-
-### 2.5 DecodeFrame 结构体
-
-```rust
-pub struct DecodeFrame {
-    pub pixfmt: AVPixelFormat,  // 输出像素格式
-    pub width: i32,             // 帧宽度
-    pub height: i32,            // 帧高度
-    pub data: Vec<Vec<u8>>,     // 平面数据 [Y, U, V] 或 [Y, UV]
-    pub linesize: Vec<i32>,     // 每个平面的行字节数
-    pub key: bool,              // 是否为关键帧
-}
-```
-
-#### 像素格式与平面布局
-
-| 像素格式 | 平面数 | data[0] | data[1] | data[2] |
-|----------|--------|---------|---------|---------|
-| `YUV420P` | 3 | Y | U | V |
-| `YUVJ420P` | 3 | Y | U | V |
-| `YUV422P` | 3 | Y | U | V |
-| `NV12` | 2 | Y | UV (交错) | - |
-| `NV21` | 2 | Y | VU (交错) | - |
-
-### 2.6 获取可用解码器
-
-```rust
-use hwcodec::ffmpeg_ram::decode::Decoder;
-
-let available_decoders = Decoder::available_decoders();
-for decoder in available_decoders {
-    println!("Available: {} (format: {:?}, hwdevice: {:?})",
-             decoder.name, decoder.format, decoder.hwdevice);
-}
-
-// 输出:
-// Available: mjpeg (format: MJPEG, hwdevice: AV_HWDEVICE_TYPE_NONE)
-```
-
-## 3. 码率控制模式
-
-### 3.1 RateControl 枚举
-
-```rust
-pub enum RateControl {
-    RC_DEFAULT,  // 使用编码器默认
-    RC_CBR,      // 恒定码率
-    RC_VBR,      // 可变码率
-    RC_CQ,       // 恒定质量 (需设置 q 参数)
-}
-```
-
-### 3.2 模式说明
-
-| 模式 | 说明 | 适用场景 |
-|------|------|----------|
-| `RC_CBR` | 码率恒定，质量随场景变化 | 网络带宽受限 |
-| `RC_VBR` | 质量优先，码率波动 | 本地存储 |
-| `RC_CQ` | 恒定质量，码率波动大 | 质量敏感场景 |
-
-### 3.3 各编码器支持情况
-
-| 编码器 | CBR | VBR | CQ |
-|--------|-----|-----|-----|
-| nvenc | ✓ | ✓ | ✓ |
-| amf | ✓ | ✓ (低延迟) | ✗ |
-| qsv | ✓ | ✓ | ✗ |
-| vaapi | ✓ | ✓ | ✗ |
-
-## 4. 质量等级
-
-### 4.1 Quality 枚举
-
-```rust
-pub enum Quality {
-    Quality_Default, // 使用编码器默认
-    Quality_High,    // 高质量 (慢速)
-    Quality_Medium,  // 中等质量 (平衡)
-    Quality_Low,     // 低质量 (快速)
-}
-```
-
-### 4.2 编码器预设映射
-
-| 质量 | nvenc | amf | qsv |
-|------|-------|-----|-----|
-| High | - | quality | veryslow |
-| Medium | p4 | balanced | medium |
-| Low | p1 | speed | veryfast |
-
-## 5. 错误处理
-
-### 5.1 错误码
-
-| 错误码 | 常量 | 说明 |
-|--------|------|------|
-| 0 | `HWCODEC_SUCCESS` | 成功 |
-| -1 | `HWCODEC_ERR_COMMON` | 通用错误 |
-| -2 | `HWCODEC_ERR_HEVC_COULD_NOT_FIND_POC` | HEVC 解码参考帧丢失 |
-
-### 5.2 常见错误处理
-
-```rust
-match encoder.encode(&yuv_data, pts) {
-    Ok(frames) => {
-        // 处理编码帧
-    }
-    Err(-1) => {
-        eprintln!("编码失败，可能是输入数据格式错误");
-    }
-    Err(code) => {
-        eprintln!("未知错误: {}", code);
-    }
-}
-```
-
-## 6. 最佳实践
-
-### 6.1 编码器选择策略
-
-```rust
-fn select_best_encoder(
-    width: i32,
-    height: i32,
-    format: DataFormat
-) -> Option<String> {
-    let ctx = EncodeContext {
-        width,
-        height,
-        pixfmt: AVPixelFormat::AV_PIX_FMT_NV12,
-        // ... 其他参数
-    };
-
-    let encoders = Encoder::available_encoders(ctx, None);
-
-    // 按优先级排序，选择最佳
-    encoders.into_iter()
-        .filter(|e| e.format == format)
-        .min_by_key(|e| e.priority)
-        .map(|e| e.name)
-}
-```
-
-### 6.2 帧内存布局
-
-```rust
-// 获取 NV12 帧布局信息
-let (linesize, offset, length) = ffmpeg_linesize_offset_length(
-    AVPixelFormat::AV_PIX_FMT_NV12,
-    1920,
-    1080,
-    0,  // align
-)?;
-
-// 分配缓冲区
-let mut buffer = vec![0u8; length as usize];
-
-// 填充 Y 平面: buffer[0..offset[0]]
-// 填充 UV 平面: buffer[offset[0]..length]
-```
-
-### 6.3 关键帧控制
-
-```rust
-let mut frame_count = 0;
-
-loop {
-    // 每 30 帧强制一个关键帧
-    if frame_count % 30 == 0 {
-        encoder.request_keyframe();
-    }
-
-    encoder.encode(&yuv_data, pts)?;
-    frame_count += 1;
-}
-```
-
-### 6.4 线程安全
-
-```rust
-// Decoder 实现了 Send + Sync
-unsafe impl Send for Decoder {}
-unsafe impl Sync for Decoder {}
-
-// 可以安全地在多线程间传递
-let decoder = Arc::new(Mutex::new(Decoder::new(ctx)?));
-```
-
-## 7. IP-KVM 典型使用场景
-
-### 7.1 视频采集和转码流程
-
-```
-USB 采集卡 (MJPEG)
-       │
-       ▼
-┌─────────────────┐
-│ MJPEG Decoder   │ ◄── Decoder::new("mjpeg")
-│ (软件解码)      │
-└────────┬────────┘
-         │ YUV420P
-         ▼
-┌─────────────────┐
-│ H264 Encoder    │ ◄── Encoder::new("h264_vaapi")
-│ (硬件加速)      │
-└────────┬────────┘
-         │ H264 NAL
-         ▼
-    WebRTC 传输
-```
-
-### 7.2 完整示例
-
-```rust
-use hwcodec::ffmpeg_ram::decode::{Decoder, DecodeContext};
-use hwcodec::ffmpeg_ram::encode::{Encoder, EncodeContext};
-use hwcodec::ffmpeg::AVHWDeviceType;
-
-// 创建 MJPEG 解码器
-let decode_ctx = DecodeContext {
-    name: "mjpeg".to_string(),
-    device_type: AVHWDeviceType::AV_HWDEVICE_TYPE_NONE,
-    thread_count: 4,
-};
-let mut decoder = Decoder::new(decode_ctx)?;
-
-// 检测并选择最佳编码器
-let encode_ctx = EncodeContext {
-    name: String::new(),
-    width: 1920,
-    height: 1080,
-    // ...
-};
-let available = Encoder::available_encoders(encode_ctx.clone(), None);
-let best_h264 = available.iter()
-    .filter(|e| e.format == DataFormat::H264)
-    .min_by_key(|e| e.priority)
-    .expect("No H264 encoder available");
-
-// 使用最佳编码器创建实例
-let encode_ctx = EncodeContext {
-    name: best_h264.name.clone(),
-    ..encode_ctx
-};
-let mut encoder = Encoder::new(encode_ctx)?;
-
-// 处理循环
-loop {
-    let mjpeg_frame = capture_frame();
-
-    // 解码 MJPEG -> YUV
-    let decoded = decoder.decode(&mjpeg_frame)?;
-
-    // 编码 YUV -> H264
-    for frame in decoded {
-        let yuv_data = frame.data.concat();
-        let encoded = encoder.encode(&yuv_data, pts)?;
-
-        // 发送编码数据
-        for packet in encoded {
-            send_to_webrtc(packet.data);
-        }
-    }
-}
-```

docs/report/hwcodec/02-hardware-acceleration.md

@@ -1,561 +0,0 @@
-# hwcodec 硬件加速详解
-
-## 1. 硬件加速架构
-
-### 1.1 整体流程
-
-```
-┌─────────────────────────────────────────────────────────────┐
-│                     应用层 (Rust)                           │
-│  ┌─────────────────────────────────────────────────────────┐│
-│  │ Encoder::available_encoders() → 自动检测可用硬件编码器   ││
-│  └─────────────────────────────────────────────────────────┘│
-└────────────────────────────┬────────────────────────────────┘
-                             │
-                             ▼
-┌─────────────────────────────────────────────────────────────┐
-│                   硬件检测层 (C++)                          │
-│  ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────────────┐│
-│  │linux_    │ │linux_    │ │linux_    │ │linux_support_    ││
-│  │support_nv│ │support_  │ │support_  │ │rkmpp/v4l2m2m     ││
-│  └────┬─────┘ │amd       │ │intel     │ └─────────┬────────┘│
-│       │       └────┬─────┘ └────┬─────┘           │         │
-└───────┼────────────┼────────────┼─────────────────┼─────────┘
-        │            │            │                 │
-        ▼            ▼            ▼                 ▼
-┌───────────┐ ┌───────────┐ ┌───────────┐ ┌───────────────────┐
-│ CUDA/     │ │ AMF       │ │ VPL/MFX   │ │ 设备节点检测       │
-│ NVENC     │ │ Runtime   │ │ Library   │ │ /dev/mpp_service  │
-│ 动态库    │ │ 动态库    │ │ 动态库    │ │ /dev/video*       │
-└───────────┘ └───────────┘ └───────────┘ └───────────────────┘
-```
-
-### 1.2 编码器测试验证
-
-每个检测到的硬件编码器都会进行实际编码测试：
-
-```rust
-// libs/hwcodec/src/ffmpeg_ram/encode.rs
-
-// 生成测试用 YUV 数据
-let yuv = Encoder::dummy_yuv(ctx.clone())?;
-
-// 尝试创建编码器并编码测试帧
-match Encoder::new(c) {
-    Ok(mut encoder) => {
-        let start = std::time::Instant::now();
-        match encoder.encode(&yuv, 0) {
-            Ok(frames) => {
-                let elapsed = start.elapsed().as_millis();
-                // 验证: 必须产生 1 帧且为关键帧，且在超时时间内完成
-                if frames.len() == 1 && frames[0].key == 1
-                   && elapsed < TEST_TIMEOUT_MS {
-                    res.push(codec);
-                }
-            }
-            Err(_) => { /* 编码失败，跳过 */ }
-        }
-    }
-    Err(_) => { /* 创建失败，跳过 */ }
-}
-```
-
-## 2. NVIDIA NVENC/NVDEC
-
-### 2.1 检测机制 (Linux)
-
-使用简化的动态库检测方法，无需 CUDA SDK 依赖：
-
-```cpp
-// libs/hwcodec/cpp/common/platform/linux/linux.cpp
-
-int linux_support_nv() {
-    // 检测 CUDA 运行时库
-    void *handle = dlopen("libcuda.so.1", RTLD_LAZY);
-    if (!handle) {
-        handle = dlopen("libcuda.so", RTLD_LAZY);
-    }
-    if (!handle) {
-        LOG_TRACE("NVIDIA: libcuda.so not found");
-        return -1;
-    }
-    dlclose(handle);
-
-    // 检测 NVENC 编码库
-    handle = dlopen("libnvidia-encode.so.1", RTLD_LAZY);
-    if (!handle) {
-        handle = dlopen("libnvidia-encode.so", RTLD_LAZY);
-    }
-    if (!handle) {
-        LOG_TRACE("NVIDIA: libnvidia-encode.so not found");
-        return -1;
-    }
-    dlclose(handle);
-
-    LOG_TRACE("NVIDIA: driver support detected");
-    return 0;
-}
-```
-
-### 2.2 编码配置
-
-```cpp
-// libs/hwcodec/cpp/common/util.cpp
-
-// NVENC 低延迟配置
-if (name.find("nvenc") != std::string::npos) {
-    // 禁用编码延迟
-    av_opt_set(priv_data, "delay", "0", 0);
-}
-
-// GPU 选择
-if (name.find("nvenc") != std::string::npos) {
-    av_opt_set_int(priv_data, "gpu", gpu_index, 0);
-}
-
-// 质量预设
-switch (quality) {
-    case Quality_Medium:
-        av_opt_set(priv_data, "preset", "p4", 0);
-        break;
-    case Quality_Low:
-        av_opt_set(priv_data, "preset", "p1", 0);
-        break;
-}
-
-// 码率控制
-av_opt_set(priv_data, "rc", "cbr", 0);  // 或 "vbr"
-```
-
-### 2.3 环境变量
-
-| 变量 | 说明 |
-|------|------|
-| `RUSTDESK_HWCODEC_NVENC_GPU` | 指定使用的 GPU 索引 (-1 = 自动) |
-
-### 2.4 依赖库
-
-- `libcuda.so` / `libcuda.so.1` - CUDA 运行时
-- `libnvidia-encode.so` / `libnvidia-encode.so.1` - NVENC 编码器
-
-## 3. AMD AMF
-
-### 3.1 检测机制 (Linux)
-
-```cpp
-// libs/hwcodec/cpp/common/platform/linux/linux.cpp
-
-int linux_support_amd() {
-#if defined(__x86_64__) || defined(__aarch64__)
-    #define AMF_DLL_NAMEA "libamfrt64.so.1"
-#else
-    #define AMF_DLL_NAMEA "libamfrt32.so.1"
-#endif
-
-    void *handle = dlopen(AMF_DLL_NAMEA, RTLD_LAZY);
-    if (!handle) {
-        return -1;  // AMF 不可用
-    }
-    dlclose(handle);
-    return 0;  // AMF 可用
-}
-```
-
-### 3.2 编码配置
-
-```cpp
-// libs/hwcodec/cpp/common/util.cpp
-
-// AMF 低延迟配置
-if (name.find("amf") != std::string::npos) {
-    av_opt_set(priv_data, "query_timeout", "1000", 0);
-}
-
-// 质量预设
-switch (quality) {
-    case Quality_High:
-        av_opt_set(priv_data, "quality", "quality", 0);
-        break;
-    case Quality_Medium:
-        av_opt_set(priv_data, "quality", "balanced", 0);
-        break;
-    case Quality_Low:
-        av_opt_set(priv_data, "quality", "speed", 0);
-        break;
-}
-
-// 码率控制
-av_opt_set(priv_data, "rc", "cbr", 0);      // 恒定码率
-av_opt_set(priv_data, "rc", "vbr_latency", 0);  // 低延迟 VBR
-```
-
-### 3.3 依赖库
-
-- `libamfrt64.so.1` (64位) 或 `libamfrt32.so.1` (32位)
-
-## 4. Intel QSV/MFX
-
-### 4.1 检测机制 (Linux)
-
-```cpp
-// libs/hwcodec/cpp/common/platform/linux/linux.cpp
-
-int linux_support_intel() {
-    const char *libs[] = {
-        "libvpl.so",           // oneVPL (新版)
-        "libmfx.so",           // Media SDK
-        "libmfx-gen.so.1.2",   // 新驱动
-        "libmfxhw64.so.1"      // 旧版驱动
-    };
-
-    for (size_t i = 0; i < sizeof(libs) / sizeof(libs[0]); i++) {
-        void *handle = dlopen(libs[i], RTLD_LAZY);
-        if (handle) {
-            dlclose(handle);
-            return 0;  // 找到可用库
-        }
-    }
-    return -1;  // Intel MFX 不可用
-}
-```
-
-### 4.2 编码配置
-
-```cpp
-// libs/hwcodec/cpp/common/util.cpp
-
-// QSV 低延迟配置
-if (name.find("qsv") != std::string::npos) {
-    av_opt_set(priv_data, "async_depth", "1", 0);
-}
-
-// QSV 特殊码率配置
-if (name.find("qsv") != std::string::npos) {
-    c->rc_max_rate = c->bit_rate;
-    c->bit_rate--;  // 实现 CBR 效果
-}
-
-// 质量预设
-switch (quality) {
-    case Quality_High:
-        av_opt_set(priv_data, "preset", "veryslow", 0);
-        break;
-    case Quality_Medium:
-        av_opt_set(priv_data, "preset", "medium", 0);
-        break;
-    case Quality_Low:
-        av_opt_set(priv_data, "preset", "veryfast", 0);
-        break;
-}
-
-// 严格标准兼容性 (用于某些特殊设置)
-c->strict_std_compliance = FF_COMPLIANCE_UNOFFICIAL;
-```
-
-### 4.3 限制
-
-- QSV 不支持 `YUV420P` 像素格式，必须使用 `NV12`
-- 在 One-KVM 简化版中仅 Windows 平台完全支持
-
-## 5. VAAPI (Linux)
-
-### 5.1 工作原理
-
-VAAPI (Video Acceleration API) 是 Linux 上的通用硬件视频加速接口：
-
-```
-┌─────────────────────────────────────────────────────────────┐
-│                    Application                               │
-├─────────────────────────────────────────────────────────────┤
-│                    FFmpeg libavcodec                         │
-├─────────────────────────────────────────────────────────────┤
-│                    VAAPI (libva)                             │
-├──────────────┬──────────────┬──────────────┬────────────────┤
-│ Intel i965   │ Intel iHD    │ AMD radeonsi │ NVIDIA VDPAU   │
-│ (Gen8-)      │ (Gen9+)      │              │ (via wrapper)  │
-├──────────────┴──────────────┴──────────────┴────────────────┤
-│                    Kernel DRM Driver                         │
-├──────────────┬──────────────┬──────────────┬────────────────┤
-│ i915         │ amdgpu       │ nvidia       │ ...            │
-└──────────────┴──────────────┴──────────────┴────────────────┘
-```
-
-### 5.2 编码配置
-
-```cpp
-// libs/hwcodec/cpp/common/util.cpp
-
-// VAAPI 低延迟配置
-if (name.find("vaapi") != std::string::npos) {
-    av_opt_set(priv_data, "async_depth", "1", 0);
-}
-```
-
-### 5.3 硬件上下文初始化
-
-```cpp
-// libs/hwcodec/cpp/ffmpeg_ram/ffmpeg_ram_encode.cpp
-
-// 检测 VAAPI 编码器
-if (name_.find("vaapi") != std::string::npos) {
-    hw_device_type_ = AV_HWDEVICE_TYPE_VAAPI;
-    hw_pixfmt_ = AV_PIX_FMT_VAAPI;
-}
-
-// 创建硬件设备上下文
-ret = av_hwdevice_ctx_create(&hw_device_ctx_, hw_device_type_,
-                             NULL,  // 使用默认设备
-                             NULL, 0);
-
-// 设置硬件帧上下文
-set_hwframe_ctx();
-
-// 分配硬件帧
-hw_frame_ = av_frame_alloc();
-av_hwframe_get_buffer(c_->hw_frames_ctx, hw_frame_, 0);
-```
-
-### 5.4 编码流程
-
-```
-输入 YUV (CPU 内存)
-       │
-       ▼
-av_hwframe_transfer_data(hw_frame_, frame_, 0)  // CPU → GPU
-       │
-       ▼
-avcodec_send_frame(c_, hw_frame_)  // 发送 GPU 帧
-       │
-       ▼
-avcodec_receive_packet(c_, pkt_)   // 获取编码数据
-       │
-       ▼
-编码数据 (CPU 内存)
-```
-
-### 5.5 依赖库
-
-- `libva.so` - VAAPI 核心库
-- `libva-drm.so` - DRM 后端
-- `libva-x11.so` - X11 后端 (可选)
-
-## 6. Rockchip MPP
-
-### 6.1 检测机制
-
-```cpp
-// libs/hwcodec/cpp/common/platform/linux/linux.cpp
-
-int linux_support_rkmpp() {
-    // 检测 MPP 服务设备
-    if (access("/dev/mpp_service", F_OK) == 0) {
-        LOG_TRACE("RKMPP: Found /dev/mpp_service");
-        return 0;  // MPP 可用
-    }
-    // 备用: 检测 RGA 设备
-    if (access("/dev/rga", F_OK) == 0) {
-        LOG_TRACE("RKMPP: Found /dev/rga");
-        return 0;  // MPP 可能可用
-    }
-    LOG_TRACE("RKMPP: No Rockchip MPP device found");
-    return -1;  // MPP 不可用
-}
-```
-
-### 6.2 支持的编码器
-
-| 编码器 | 优先级 | 说明 |
-|--------|--------|------|
-| `h264_rkmpp` | Best (0) | H.264 硬件编码 |
-| `hevc_rkmpp` | Best (0) | H.265 硬件编码 |
-
-### 6.3 适用设备
-
-- Rockchip RK3328 (Onecloud, Chainedbox)
-- Rockchip RK3399/RK3588 系列
-- 其他 Rockchip SoC
-
-## 7. V4L2 M2M
-
-### 7.1 检测机制
-
-```cpp
-// libs/hwcodec/cpp/common/platform/linux/linux.cpp
-
-int linux_support_v4l2m2m() {
-    const char *m2m_devices[] = {
-        "/dev/video10",  // 常见 M2M 编码设备
-        "/dev/video11",  // 常见 M2M 解码设备
-        "/dev/video0",   // 某些 SoC 使用
-    };
-
-    for (size_t i = 0; i < sizeof(m2m_devices) / sizeof(m2m_devices[0]); i++) {
-        if (access(m2m_devices[i], F_OK) == 0) {
-            int fd = open(m2m_devices[i], O_RDWR | O_NONBLOCK);
-            if (fd >= 0) {
-                close(fd);
-                LOG_TRACE("V4L2 M2M: Found device " + m2m_devices[i]);
-                return 0;  // V4L2 M2M 可用
-            }
-        }
-    }
-    LOG_TRACE("V4L2 M2M: No M2M device found");
-    return -1;
-}
-```
-
-### 7.2 支持的编码器
-
-| 编码器 | 优先级 | 说明 |
-|--------|--------|------|
-| `h264_v4l2m2m` | Good (1) | H.264 V4L2 编码 |
-| `hevc_v4l2m2m` | Good (1) | H.265 V4L2 编码 |
-
-### 7.3 适用设备
-
-- 通用 ARM SoC (Allwinner, Amlogic 等)
-- 支持 V4L2 M2M API 的设备
-
-## 8. 硬件加速优先级
-
-### 8.1 优先级定义
-
-```rust
-pub enum Priority {
-    Best = 0,    // 专用硬件编码器
-    Good = 1,    // 通用硬件加速
-    Normal = 2,  // 基本硬件支持
-    Soft = 3,    // 软件编码
-    Bad = 4,     // 最低优先级
-}
-```
-
-### 8.2 各编码器优先级
-
-| 优先级 | 编码器 |
-|--------|--------|
-| Best (0) | nvenc, amf, qsv, rkmpp |
-| Good (1) | vaapi, v4l2m2m |
-| Soft (3) | x264, x265, libvpx |
-
-### 8.3 选择策略
-
-```rust
-// libs/hwcodec/src/ffmpeg_ram/mod.rs
-
-pub fn prioritized(coders: Vec<CodecInfo>) -> CodecInfos {
-    // 对于每种格式，选择优先级最高的编码器
-    for coder in coders {
-        match coder.format {
-            DataFormat::H264 => {
-                if h264.is_none() || h264.priority > coder.priority {
-                    h264 = Some(coder);
-                }
-            }
-            // ... 其他格式类似
-        }
-    }
-}
-```
-
-## 9. 故障排除
-
-### 9.1 NVIDIA
-
-```bash
-# 检查 NVIDIA 驱动
-nvidia-smi
-
-# 检查 NVENC 支持
-ls /dev/nvidia*
-
-# 检查 CUDA 库
-ldconfig -p | grep cuda
-ldconfig -p | grep nvidia-encode
-```
-
-### 9.2 AMD
-
-```bash
-# 检查 AMD 驱动
-lspci | grep AMD
-
-# 检查 AMF 库
-ldconfig -p | grep amf
-```
-
-### 9.3 Intel
-
-```bash
-# 检查 Intel 驱动
-vainfo
-
-# 检查 MFX 库
-ldconfig -p | grep mfx
-ldconfig -p | grep vpl
-```
-
-### 9.4 VAAPI
-
-```bash
-# 安装 vainfo
-sudo apt install vainfo
-
-# 检查 VAAPI 支持
-vainfo
-
-# 输出示例:
-# libva info: VA-API version 1.14.0
-# libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
-# vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics
-# vainfo: Supported profile and entrypoints
-#       VAProfileH264Main               : VAEntrypointVLD
-#       VAProfileH264Main               : VAEntrypointEncSlice
-#       ...
-```
-
-### 9.5 Rockchip MPP
-
-```bash
-# 检查 MPP 设备
-ls -la /dev/mpp_service
-ls -la /dev/rga
-
-# 检查 MPP 库
-ldconfig -p | grep rockchip_mpp
-```
-
-### 9.6 V4L2 M2M
-
-```bash
-# 列出 V4L2 设备
-v4l2-ctl --list-devices
-
-# 检查设备能力
-v4l2-ctl -d /dev/video10 --all
-```
-
-## 10. 性能优化建议
-
-### 10.1 编码器选择
-
-1. **优先使用硬件编码**: NVENC > AMF > QSV > VAAPI > V4L2 M2M > 软件
-2. **ARM 设备**: 优先检测 RKMPP，其次 V4L2 M2M
-3. **x86 设备**: 根据 GPU 厂商自动选择
-
-### 10.2 低延迟配置
-
-所有硬件编码器都启用了低延迟优化：
-
-| 编码器 | 配置 |
-|--------|------|
-| NVENC | `delay=0` |
-| AMF | `query_timeout=1000` |
-| QSV | `async_depth=1` |
-| VAAPI | `async_depth=1` |
-| libvpx | `deadline=realtime`, `cpu-used=6` |
-
-### 10.3 码率控制
-
-- **实时流**: 推荐 CBR 模式，保证稳定码率
-- **GOP 大小**: 建议 30-60 帧 (1-2秒)，平衡延迟和压缩效率

docs/report/hwcodec/03-build-integration.md

@@ -1,477 +0,0 @@
-# hwcodec 构建系统与集成指南
-
-## 1. 项目结构
-
-```
-libs/hwcodec/
-├── Cargo.toml           # 包配置
-├── Cargo.lock           # 依赖锁定
-├── build.rs             # 构建脚本
-└── src/                 # Rust 源码
-    ├── lib.rs           # 库入口
-    ├── common.rs        # 公共定义
-    ├── ffmpeg.rs        # FFmpeg 集成
-    └── ffmpeg_ram/      # RAM 编解码
-        ├── mod.rs
-        ├── encode.rs
-        └── decode.rs
-└── cpp/                 # C++ 源码
-    ├── common/          # 公共代码
-    │   ├── log.cpp
-    │   ├── log.h
-    │   ├── util.cpp
-    │   ├── util.h
-    │   ├── callback.h
-    │   ├── common.h
-    │   └── platform/
-    │       ├── linux/
-    │       │   ├── linux.cpp
-    │       │   └── linux.h
-    │       └── win/
-    │           ├── win.cpp
-    │           └── win.h
-    ├── ffmpeg_ram/      # FFmpeg RAM 实现
-    │   ├── ffmpeg_ram_encode.cpp
-    │   ├── ffmpeg_ram_decode.cpp
-    │   └── ffmpeg_ram_ffi.h
-    └── yuv/             # YUV 处理
-        └── yuv.cpp
-```
-
-## 2. Cargo 配置
-
-### 2.1 Cargo.toml
-
-```toml
-[package]
-name = "hwcodec"
-version = "0.8.0"
-edition = "2021"
-description = "Hardware video codec for IP-KVM (Windows/Linux)"
-
-[features]
-default = []
-
-[dependencies]
-log = "0.4"              # 日志
-serde_derive = "1.0"     # 序列化派生宏
-serde = "1.0"            # 序列化
-serde_json = "1.0"       # JSON 序列化
-
-[build-dependencies]
-cc = "1.0"               # C++ 编译
-bindgen = "0.59"         # FFI 绑定生成
-
-[dev-dependencies]
-env_logger = "0.10"      # 日志输出
-```
-
-### 2.2 与原版的区别
-
-| 特性 | 原版 (RustDesk) | 简化版 (One-KVM) |
-|------|-----------------|------------------|
-| `vram` feature | ✓ | ✗ (已移除) |
-| 外部 SDK | 需要 | 不需要 |
-| 版本号 | 0.7.1 | 0.8.0 |
-| 目标平台 | Windows/Linux/macOS/Android | Windows/Linux |
-
-### 2.3 使用方式
-
-```toml
-# 在 One-KVM 项目中使用
-[dependencies]
-hwcodec = { path = "libs/hwcodec" }
-```
-
-## 3. 构建脚本详解 (build.rs)
-
-### 3.1 主入口
-
-```rust
-fn main() {
-    let manifest_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
-    let mut builder = Build::new();
-
-    // 1. 构建公共模块
-    build_common(&mut builder);
-
-    // 2. 构建 FFmpeg 相关模块
-    ffmpeg::build_ffmpeg(&mut builder);
-
-    // 3. 编译生成静态库
-    builder.static_crt(true).compile("hwcodec");
-}
-```
-
-### 3.2 公共模块构建
-
-```rust
-fn build_common(builder: &mut Build) {
-    let common_dir = manifest_dir.join("cpp").join("common");
-
-    // 生成 FFI 绑定
-    bindgen::builder()
-        .header(common_dir.join("common.h"))
-        .header(common_dir.join("callback.h"))
-        .rustified_enum("*")
-        .generate()
-        .write_to_file(OUT_DIR.join("common_ffi.rs"));
-
-    // 平台相关代码
-    #[cfg(windows)]
-    builder.file(common_dir.join("platform/win/win.cpp"));
-
-    #[cfg(target_os = "linux")]
-    builder.file(common_dir.join("platform/linux/linux.cpp"));
-
-    // 工具代码
-    builder.files([
-        common_dir.join("log.cpp"),
-        common_dir.join("util.cpp"),
-    ]);
-}
-```
-
-### 3.3 FFmpeg 模块构建
-
-```rust
-mod ffmpeg {
-    pub fn build_ffmpeg(builder: &mut Build) {
-        // 生成 FFmpeg FFI 绑定
-        ffmpeg_ffi();
-
-        // 链接 FFmpeg 库
-        if let Ok(vcpkg_root) = std::env::var("VCPKG_ROOT") {
-            link_vcpkg(builder, vcpkg_root.into());
-        } else {
-            link_system_ffmpeg(builder);  // pkg-config
-        }
-
-        // 链接系统库
-        link_os();
-
-        // 构建 FFmpeg RAM 模块
-        build_ffmpeg_ram(builder);
-    }
-}
-```
-
-### 3.4 FFmpeg 链接方式
-
-#### VCPKG (跨平台静态链接)
-
-```rust
-fn link_vcpkg(builder: &mut Build, path: PathBuf) -> PathBuf {
-    // 目标平台识别
-    let target = match (target_os, target_arch) {
-        ("windows", "x86_64") => "x64-windows-static",
-        ("linux", arch) => format!("{}-linux", arch),
-        _ => panic!("unsupported platform"),
-    };
-
-    let lib_path = path.join("installed").join(target).join("lib");
-
-    // 链接 FFmpeg 静态库
-    println!("cargo:rustc-link-search=native={}", lib_path);
-    ["avcodec", "avutil", "avformat"].iter()
-        .for_each(|lib| println!("cargo:rustc-link-lib=static={}", lib));
-}
-```
-
-#### pkg-config (Linux 动态链接)
-
-```rust
-fn link_system_ffmpeg(builder: &mut Build) {
-    let libs = ["libavcodec", "libavutil", "libavformat", "libswscale"];
-
-    for lib in &libs {
-        // 获取编译标志
-        let cflags = Command::new("pkg-config")
-            .args(["--cflags", lib])
-            .output()?;
-
-        // 获取链接标志
-        let libs = Command::new("pkg-config")
-            .args(["--libs", lib])
-            .output()?;
-
-        // 解析并应用
-        for flag in libs.split_whitespace() {
-            if flag.starts_with("-L") {
-                println!("cargo:rustc-link-search=native={}", &flag[2..]);
-            } else if flag.starts_with("-l") {
-                println!("cargo:rustc-link-lib={}", &flag[2..]);
-            }
-        }
-    }
-}
-```
-
-### 3.5 系统库链接
-
-```rust
-fn link_os() {
-    let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
-
-    let libs: Vec<&str> = match target_os.as_str() {
-        "windows" => vec!["User32", "bcrypt", "ole32", "advapi32"],
-        "linux" => vec!["drm", "X11", "stdc++", "z"],
-        _ => panic!("unsupported os"),
-    };
-
-    for lib in libs {
-        println!("cargo:rustc-link-lib={}", lib);
-    }
-}
-```
-
-## 4. FFI 绑定生成
-
-### 4.1 bindgen 配置
-
-```rust
-bindgen::builder()
-    .header("path/to/header.h")
-    .rustified_enum("*")           // 生成 Rust 枚举
-    .parse_callbacks(Box::new(Callbacks))  // 自定义回调
-    .generate()
-    .write_to_file(OUT_DIR.join("ffi.rs"));
-```
-
-### 4.2 自定义派生
-
-```rust
-#[derive(Debug)]
-struct CommonCallbacks;
-
-impl bindgen::callbacks::ParseCallbacks for CommonCallbacks {
-    fn add_derives(&self, name: &str) -> Vec<String> {
-        // 为特定类型添加序列化支持
-        match name {
-            "DataFormat" | "SurfaceFormat" | "API" => {
-                vec!["Serialize".to_string(), "Deserialize".to_string()]
-            }
-            _ => vec![],
-        }
-    }
-}
-```
-
-### 4.3 生成的文件
-
-| 文件 | 来源 | 内容 |
-|------|------|------|
-| `common_ffi.rs` | `common.h`, `callback.h` | 枚举、常量、回调类型 |
-| `ffmpeg_ffi.rs` | `ffmpeg_ffi.h` | FFmpeg 日志级别、函数 |
-| `ffmpeg_ram_ffi.rs` | `ffmpeg_ram_ffi.h` | 编解码器函数 |
-
-## 5. 平台构建指南
-
-### 5.1 Linux 构建
-
-```bash
-# 安装 FFmpeg 开发库
-sudo apt install libavcodec-dev libavformat-dev libavutil-dev libswscale-dev
-
-# 安装其他依赖
-sudo apt install libdrm-dev libx11-dev pkg-config
-
-# 安装 clang (bindgen 需要)
-sudo apt install clang libclang-dev
-
-# 构建
-cargo build --release -p hwcodec
-```
-
-### 5.2 Windows 构建 (VCPKG)
-
-```powershell
-# 安装 VCPKG
-git clone https://github.com/microsoft/vcpkg
-cd vcpkg
-./bootstrap-vcpkg.bat
-
-# 安装 FFmpeg
-./vcpkg install ffmpeg:x64-windows-static
-
-# 设置环境变量
-$env:VCPKG_ROOT = "C:\path\to\vcpkg"
-
-# 构建
-cargo build --release -p hwcodec
-```
-
-### 5.3 交叉编译
-
-```bash
-# 安装 cross
-cargo install cross --git https://github.com/cross-rs/cross
-
-# ARM64 Linux
-cross build --release -p hwcodec --target aarch64-unknown-linux-gnu
-
-# ARMv7 Linux
-cross build --release -p hwcodec --target armv7-unknown-linux-gnueabihf
-```
-
-## 6. 集成到 One-KVM
-
-### 6.1 依赖配置
-
-```toml
-# Cargo.toml
-[dependencies]
-hwcodec = { path = "libs/hwcodec" }
-```
-
-### 6.2 使用示例
-
-```rust
-use hwcodec::ffmpeg_ram::encode::{Encoder, EncodeContext};
-use hwcodec::ffmpeg_ram::decode::{Decoder, DecodeContext};
-use hwcodec::ffmpeg::{AVPixelFormat, AVHWDeviceType};
-
-// 检测可用编码器
-let encoders = Encoder::available_encoders(ctx, None);
-
-// 创建编码器
-let encoder = Encoder::new(EncodeContext {
-    name: "h264_vaapi".to_string(),
-    width: 1920,
-    height: 1080,
-    pixfmt: AVPixelFormat::AV_PIX_FMT_NV12,
-    fps: 30,
-    gop: 30,
-    kbs: 4000,
-    // ...
-})?;
-
-// 编码
-let frames = encoder.encode(&yuv_data, pts_ms)?;
-
-// 创建 MJPEG 解码器 (IP-KVM 专用)
-let decoder = Decoder::new(DecodeContext {
-    name: "mjpeg".to_string(),
-    device_type: AVHWDeviceType::AV_HWDEVICE_TYPE_NONE,
-    thread_count: 4,
-})?;
-
-// 解码
-let frames = decoder.decode(&mjpeg_data)?;
-```
-
-### 6.3 日志集成
-
-```rust
-// hwcodec 使用 log crate，与 One-KVM 日志系统兼容
-use log::{debug, info, warn, error};
-
-// C++ 层日志通过回调传递到 Rust
-#[no_mangle]
-pub extern "C" fn hwcodec_av_log_callback(level: i32, message: *const c_char) {
-    // 转发到 Rust log 系统
-    match level {
-        AV_LOG_ERROR => error!("{}", message),
-        AV_LOG_WARNING => warn!("{}", message),
-        AV_LOG_INFO => info!("{}", message),
-        AV_LOG_DEBUG => debug!("{}", message),
-        _ => {}
-    }
-}
-```
-
-## 7. 故障排除
-
-### 7.1 编译错误
-
-**FFmpeg 未找到**:
-```
-error: pkg-config failed for libavcodec
-```
-解决: 安装 FFmpeg 开发库
-```bash
-sudo apt install libavcodec-dev libavformat-dev libavutil-dev libswscale-dev
-```
-
-**bindgen 错误**:
-```
-error: failed to run custom build command for `hwcodec`
-```
-解决: 安装 clang
-```bash
-sudo apt install clang libclang-dev
-```
-
-### 7.2 链接错误
-
-**符号未定义**:
-```
-undefined reference to `av_log_set_level'
-```
-解决: 检查 FFmpeg 库链接顺序，确保 pkg-config 正确配置
-
-**动态库未找到**:
-```
-error while loading shared libraries: libavcodec.so.59
-```
-解决:
-```bash
-sudo ldconfig
-# 或设置 LD_LIBRARY_PATH
-export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
-```
-
-### 7.3 运行时错误
-
-**硬件编码器不可用**:
-```
-Encoder h264_vaapi test failed
-```
-检查:
-1. 驱动是否正确安装: `vainfo`
-2. 权限是否足够: `ls -la /dev/dri/`
-3. 用户是否在 video 组: `groups`
-
-**解码失败**:
-```
-avcodec_receive_frame failed, ret = -11
-```
-解决: 这通常表示需要更多输入数据 (EAGAIN)，是正常行为
-
-## 8. 与原版 RustDesk hwcodec 的构建差异
-
-### 8.1 移除的构建步骤
-
-| 步骤 | 原因 |
-|------|------|
-| `build_mux()` | 移除了 Mux 模块 |
-| `build_ffmpeg_vram()` | 移除了 VRAM 模块 |
-| `sdk::build_sdk()` | 移除了外部 SDK 依赖 |
-| macOS 框架链接 | 移除了 macOS 支持 |
-| Android NDK 链接 | 移除了 Android 支持 |
-
-### 8.2 简化的构建流程
-
-```
-原版构建流程:
-build.rs
-├── build_common()
-├── ffmpeg::build_ffmpeg()
-│   ├── build_ffmpeg_ram()
-│   ├── build_ffmpeg_vram()  [已移除]
-│   └── build_mux()          [已移除]
-└── sdk::build_sdk()         [已移除]
-
-简化版构建流程:
-build.rs
-├── build_common()
-└── ffmpeg::build_ffmpeg()
-    └── build_ffmpeg_ram()
-```
-
-### 8.3 优势
-
-1. **更快的编译**: 无需编译外部 SDK 代码
-2. **更少的依赖**: 无需下载 ~9MB 的外部 SDK
-3. **更简单的维护**: 代码量减少约 67%
-4. **更小的二进制**: 不包含未使用的功能

docs/report/rustdesk/00-overview.md

@@ -1,69 +0,0 @@
-# RustDesk 通信协议技术报告
-
-## 概述
-
-本报告详细分析 RustDesk 远程桌面软件的客户端与服务器之间的通信协议，包括 Rendezvous 服务器（hbbs）、Relay 服务器（hbbr）以及客户端之间的 P2P 连接机制。
-
-## 文档结构
-
-| 文档 | 内容 |
-|------|------|
-| [01-architecture.md](01-architecture.md) | 整体架构设计 |
-| [02-rendezvous-protocol.md](02-rendezvous-protocol.md) | Rendezvous 服务器协议 |
-| [03-relay-protocol.md](03-relay-protocol.md) | Relay 服务器协议 |
-| [04-p2p-connection.md](04-p2p-connection.md) | P2P 连接流程 |
-| [05-message-format.md](05-message-format.md) | 消息格式定义 |
-| [06-encryption.md](06-encryption.md) | 加密机制 |
-| [07-nat-traversal.md](07-nat-traversal.md) | NAT 穿透技术 |
-| [08-onekvm-comparison.md](08-onekvm-comparison.md) | **One-KVM 实现对比分析** |
-
-## 核心组件
-
-### 1. Rendezvous Server (hbbs)
-- **功能**: ID 注册、Peer 发现、NAT 类型检测、连接协调
-- **端口**: 21116 (TCP/UDP), 21115 (NAT 测试), 21118 (WebSocket)
-- **源文件**: `rustdesk-server/src/rendezvous_server.rs`
-
-### 2. Relay Server (hbbr)
-- **功能**: 当 P2P 连接失败时提供数据中转
-- **端口**: 21117 (TCP), 21119 (WebSocket)
-- **源文件**: `rustdesk-server/src/relay_server.rs`
-
-### 3. 客户端 (RustDesk)
-- **功能**: 远程桌面控制、文件传输、屏幕共享
-- **核心模块**:
-  - `rendezvous_mediator.rs` - 与 Rendezvous 服务器通信
-  - `client.rs` - 客户端连接逻辑
-  - `server/connection.rs` - 被控端连接处理
-
-## 协议栈
-
-```
-┌─────────────────────────────────────────┐
-│            Application Layer            │
-│   (Video/Audio/Keyboard/Mouse/File)     │
-├─────────────────────────────────────────┤
-│            Message Layer                │
-│         (Protobuf Messages)             │
-├─────────────────────────────────────────┤
-│           Security Layer                │
-│    (Sodium: X25519 + ChaCha20)          │
-├─────────────────────────────────────────┤
-│           Transport Layer               │
-│   (TCP/UDP/WebSocket/KCP)               │
-└─────────────────────────────────────────┘
-```
-
-## 关键技术特点
-
-1. **混合连接模式**: 优先尝试 P2P 直连，失败后自动切换到 Relay 中转
-2. **多协议支持**: TCP、UDP、WebSocket、KCP
-3. **端到端加密**: 使用 libsodium 实现的 X25519 密钥交换和 ChaCha20-Poly1305 对称加密
-4. **NAT 穿透**: 支持 UDP 打洞和 TCP 打洞技术
-5. **服务器签名**: 可选的服务器公钥签名验证，防止中间人攻击
-
-## 版本信息
-
-- 分析基于 RustDesk 最新版本源码
-- Protocol Buffer 版本: proto3
-- 加密库: libsodium (sodiumoxide)

docs/report/rustdesk/01-architecture.md

@@ -1,218 +0,0 @@
-# RustDesk 架构设计
-
-## 系统架构图
-
-```
-                                    ┌──────────────────────┐
-                                    │   Rendezvous Server  │
-                                    │       (hbbs)         │
-                                    │  Port: 21116         │
-                                    └──────────┬───────────┘
-                                               │
-                    ┌──────────────────────────┼──────────────────────────┐
-                    │                          │                          │
-                    ▼                          ▼                          ▼
-            ┌───────────────┐          ┌───────────────┐          ┌───────────────┐
-            │   Client A    │          │   Client B    │          │   Client C    │
-            │   (控制端)     │          │   (被控端)     │          │   (被控端)     │
-            └───────┬───────┘          └───────┬───────┘          └───────────────┘
-                    │                          │
-                    │    P2P Connection        │
-                    │◄────────────────────────►│
-                    │                          │
-                    │   (如果 P2P 失败)         │
-                    │          │               │
-                    │          ▼               │
-                    │  ┌───────────────┐       │
-                    └─►│  Relay Server │◄──────┘
-                       │    (hbbr)     │
-                       │  Port: 21117  │
-                       └───────────────┘
-```
-
-## 服务器组件详解
-
-### Rendezvous Server (hbbs)
-
-**监听端口：**
-| 端口 | 协议 | 用途 |
-|------|------|------|
-| 21116 | TCP | 主要通信端口，处理 punch hole 请求 |
-| 21116 | UDP | Peer 注册、NAT 类型检测 |
-| 21115 | TCP | NAT 测试专用端口 |
-| 21118 | WebSocket | Web 客户端支持 |
-
-**核心数据结构：**
-
-```rust
-// rustdesk-server/src/rendezvous_server.rs:64-83
-pub struct RendezvousServer {
-    tcp_punch: Arc<Mutex<HashMap<SocketAddr, Sink>>>,  // TCP punch hole 连接
-    pm: PeerMap,                                        // Peer 映射表
-    tx: Sender,                                         // 消息发送通道
-    relay_servers: Arc<RelayServers>,                  // 可用 Relay 服务器列表
-    relay_servers0: Arc<RelayServers>,                 // 原始 Relay 服务器列表
-    rendezvous_servers: Arc<Vec<String>>,              // Rendezvous 服务器列表
-    inner: Arc<Inner>,                                  // 内部配置
-}
-
-struct Inner {
-    serial: i32,                      // 配置序列号
-    version: String,                  // 软件版本
-    software_url: String,             // 软件更新 URL
-    mask: Option<Ipv4Network>,        // LAN 掩码
-    local_ip: String,                 // 本地 IP
-    sk: Option<sign::SecretKey>,      // 服务器签名密钥
-}
-```
-
-**Peer 数据结构：**
-
-```rust
-// rustdesk-server/src/peer.rs:32-42
-pub struct Peer {
-    pub socket_addr: SocketAddr,   // 最后注册的地址
-    pub last_reg_time: Instant,    // 最后注册时间
-    pub guid: Vec<u8>,             // 数据库 GUID
-    pub uuid: Bytes,               // 设备 UUID
-    pub pk: Bytes,                 // 公钥
-    pub info: PeerInfo,            // Peer 信息
-    pub reg_pk: (u32, Instant),    // 注册频率限制
-}
-```
-
-### Relay Server (hbbr)
-
-**监听端口：**
-| 端口 | 协议 | 用途 |
-|------|------|------|
-| 21117 | TCP | 主要中转端口 |
-| 21119 | WebSocket | Web 客户端支持 |
-
-**核心特性：**
-
-```rust
-// rustdesk-server/src/relay_server.rs:40-44
-static DOWNGRADE_THRESHOLD_100: AtomicUsize = AtomicUsize::new(66);        // 降级阈值
-static DOWNGRADE_START_CHECK: AtomicUsize = AtomicUsize::new(1_800_000);   // 检测开始时间(ms)
-static LIMIT_SPEED: AtomicUsize = AtomicUsize::new(32 * 1024 * 1024);      // 限速(bit/s)
-static TOTAL_BANDWIDTH: AtomicUsize = AtomicUsize::new(1024 * 1024 * 1024);// 总带宽
-static SINGLE_BANDWIDTH: AtomicUsize = AtomicUsize::new(128 * 1024 * 1024);// 单连接带宽
-```
-
-## 客户端架构
-
-### 核心模块
-
-```
-rustdesk/src/
-├── rendezvous_mediator.rs  # Rendezvous 服务器通信
-├── client.rs               # 控制端核心逻辑
-├── server/
-│   ├── mod.rs              # 被控端服务
-│   ├── connection.rs       # 连接处理
-│   ├── video_service.rs    # 视频服务
-│   ├── audio_service.rs    # 音频服务
-│   └── input_service.rs    # 输入服务
-├── common.rs               # 通用函数（加密、解密）
-└── platform/               # 平台特定代码
-```
-
-### RendezvousMediator
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:44-50
-pub struct RendezvousMediator {
-    addr: TargetAddr<'static>,   // 服务器地址
-    host: String,                // 服务器主机名
-    host_prefix: String,         // 主机前缀
-    keep_alive: i32,             // 保活间隔
-}
-```
-
-**两种连接模式：**
-
-1. **UDP 模式** (默认):
-   - 用于 Peer 注册和心跳
-   - 更低延迟
-   - 可能被某些防火墙阻止
-
-2. **TCP 模式**:
-   - 用于代理环境
-   - WebSocket 模式
-   - 更可靠
-
-## 连接流程概述
-
-### 被控端启动流程
-
-```
-1. 生成设备 ID 和密钥对
-2. 连接 Rendezvous Server
-3. 发送 RegisterPeer 消息
-4. 如果需要，发送 RegisterPk 注册公钥
-5. 定期发送心跳保持在线状态
-6. 等待 PunchHole 或 RequestRelay 请求
-```
-
-### 控制端连接流程
-
-```
-1. 输入目标设备 ID
-2. 连接 Rendezvous Server
-3. 发送 PunchHoleRequest 消息
-4. 根据响应决定连接方式:
-   a. 直连 (P2P): 使用 PunchHole 信息尝试打洞
-   b. 局域网: 使用 LocalAddr 信息直连
-   c. 中转: 通过 Relay Server 连接
-5. 建立安全加密通道
-6. 发送 LoginRequest 进行身份验证
-7. 开始远程控制会话
-```
-
-## 数据流
-
-### 视频流
-
-```
-被控端                              控制端
-  │                                  │
-  │  VideoFrame (H264/VP9/...)       │
-  ├─────────────────────────────────►│
-  │                                  │
-  │  加密 → 传输 → 解密 → 解码 → 显示 │
-```
-
-### 输入流
-
-```
-控制端                              被控端
-  │                                  │
-  │  MouseEvent/KeyEvent             │
-  ├─────────────────────────────────►│
-  │                                  │
-  │  加密 → 传输 → 解密 → 模拟输入    │
-```
-
-## 高可用设计
-
-### 多服务器支持
-
-- 客户端可配置多个 Rendezvous Server
-- 自动选择延迟最低的服务器
-- 连接失败时自动切换备用服务器
-
-### Relay Server 选择
-
-- 支持配置多个 Relay Server
-- 轮询算法分配负载
-- 定期检查 Relay Server 可用性
-
-### 重连机制
-
-```rust
-// 连接超时和重试参数
-const REG_INTERVAL: i64 = 12_000;      // 注册间隔 12 秒
-const REG_TIMEOUT: i32 = 30_000;       // 注册超时 30 秒
-const CONNECT_TIMEOUT: u64 = 18_000;   // 连接超时 18 秒
-```

docs/report/rustdesk/02-rendezvous-protocol.md

@@ -1,438 +0,0 @@
-# Rendezvous 服务器协议
-
-## 概述
-
-Rendezvous Server（hbbs）是 RustDesk 的核心协调服务器，负责：
-- Peer ID 注册和发现
-- 公钥存储和分发
-- NAT 类型检测
-- P2P 连接协调（打洞辅助）
-- Relay Server 分配
-
-## 协议消息定义
-
-所有消息使用 Protocol Buffers 定义在 `protos/rendezvous.proto`：
-
-```protobuf
-message RendezvousMessage {
-  oneof union {
-    RegisterPeer register_peer = 6;
-    RegisterPeerResponse register_peer_response = 7;
-    PunchHoleRequest punch_hole_request = 8;
-    PunchHole punch_hole = 9;
-    PunchHoleSent punch_hole_sent = 10;
-    PunchHoleResponse punch_hole_response = 11;
-    FetchLocalAddr fetch_local_addr = 12;
-    LocalAddr local_addr = 13;
-    ConfigUpdate configure_update = 14;
-    RegisterPk register_pk = 15;
-    RegisterPkResponse register_pk_response = 16;
-    SoftwareUpdate software_update = 17;
-    RequestRelay request_relay = 18;
-    RelayResponse relay_response = 19;
-    TestNatRequest test_nat_request = 20;
-    TestNatResponse test_nat_response = 21;
-    PeerDiscovery peer_discovery = 22;
-    OnlineRequest online_request = 23;
-    OnlineResponse online_response = 24;
-    KeyExchange key_exchange = 25;
-    HealthCheck hc = 26;
-  }
-}
-```
-
-## 核心流程
-
-### 1. Peer 注册流程
-
-**客户端 → 服务器：RegisterPeer**
-
-```protobuf
-message RegisterPeer {
-  string id = 1;      // Peer ID (如 "123456789")
-  int32 serial = 2;   // 配置序列号
-}
-```
-
-**服务器处理逻辑：**
-
-```rust
-// rustdesk-server/src/rendezvous_server.rs:318-333
-Some(rendezvous_message::Union::RegisterPeer(rp)) => {
-    if !rp.id.is_empty() {
-        log::trace!("New peer registered: {:?} {:?}", &rp.id, &addr);
-        self.update_addr(rp.id, addr, socket).await?;
-        // 如果服务器配置更新，发送 ConfigUpdate
-        if self.inner.serial > rp.serial {
-            let mut msg_out = RendezvousMessage::new();
-            msg_out.set_configure_update(ConfigUpdate {
-                serial: self.inner.serial,
-                rendezvous_servers: (*self.rendezvous_servers).clone(),
-                ..Default::default()
-            });
-            socket.send(&msg_out, addr).await?;
-        }
-    }
-}
-```
-
-**服务器 → 客户端：RegisterPeerResponse**
-
-```protobuf
-message RegisterPeerResponse {
-  bool request_pk = 2;  // 是否需要注册公钥
-}
-```
-
-### 2. 公钥注册流程
-
-当服务器检测到 Peer 的公钥为空或 IP 变化时，会请求注册公钥。
-
-**客户端 → 服务器：RegisterPk**
-
-```protobuf
-message RegisterPk {
-  string id = 1;       // Peer ID
-  bytes uuid = 2;      // 设备 UUID
-  bytes pk = 3;        // Ed25519 公钥
-  string old_id = 4;   // 旧 ID（如果更换）
-}
-```
-
-**服务器处理逻辑：**
-
-```rust
-// rustdesk-server/src/rendezvous_server.rs:334-418
-Some(rendezvous_message::Union::RegisterPk(rk)) => {
-    // 验证 UUID 和公钥
-    if rk.uuid.is_empty() || rk.pk.is_empty() {
-        return Ok(());
-    }
-    let id = rk.id;
-    let ip = addr.ip().to_string();
-
-    // ID 长度检查
-    if id.len() < 6 {
-        return send_rk_res(socket, addr, UUID_MISMATCH).await;
-    }
-
-    // IP 封锁检查
-    if !self.check_ip_blocker(&ip, &id).await {
-        return send_rk_res(socket, addr, TOO_FREQUENT).await;
-    }
-
-    // UUID 匹配验证
-    let peer = self.pm.get_or(&id).await;
-    // ... UUID 验证逻辑 ...
-
-    // 更新数据库
-    if changed {
-        self.pm.update_pk(id, peer, addr, rk.uuid, rk.pk, ip).await;
-    }
-
-    // 发送成功响应
-    msg_out.set_register_pk_response(RegisterPkResponse {
-        result: register_pk_response::Result::OK.into(),
-        ..Default::default()
-    });
-}
-```
-
-**服务器 → 客户端：RegisterPkResponse**
-
-```protobuf
-message RegisterPkResponse {
-  enum Result {
-    OK = 0;
-    UUID_MISMATCH = 2;
-    ID_EXISTS = 3;
-    TOO_FREQUENT = 4;
-    INVALID_ID_FORMAT = 5;
-    NOT_SUPPORT = 6;
-    SERVER_ERROR = 7;
-  }
-  Result result = 1;
-  int32 keep_alive = 2;  // 心跳间隔
-}
-```
-
-### 3. Punch Hole 请求流程
-
-当控制端要连接被控端时，首先发送 PunchHoleRequest。
-
-**控制端 → 服务器：PunchHoleRequest**
-
-```protobuf
-message PunchHoleRequest {
-  string id = 1;           // 目标 Peer ID
-  NatType nat_type = 2;    // 请求方的 NAT 类型
-  string licence_key = 3;  // 许可证密钥
-  ConnType conn_type = 4;  // 连接类型
-  string token = 5;        // 认证令牌
-  string version = 6;      // 客户端版本
-}
-
-enum NatType {
-  UNKNOWN_NAT = 0;
-  ASYMMETRIC = 1;
-  SYMMETRIC = 2;
-}
-
-enum ConnType {
-  DEFAULT_CONN = 0;
-  FILE_TRANSFER = 1;
-  PORT_FORWARD = 2;
-  RDP = 3;
-  VIEW_CAMERA = 4;
-}
-```
-
-**服务器处理逻辑：**
-
-```rust
-// rustdesk-server/src/rendezvous_server.rs:674-765
-async fn handle_punch_hole_request(...) {
-    // 1. 验证许可证密钥
-    if !key.is_empty() && ph.licence_key != key {
-        return Ok((PunchHoleResponse { failure: LICENSE_MISMATCH }, None));
-    }
-
-    // 2. 查找目标 Peer
-    if let Some(peer) = self.pm.get(&id).await {
-        let (elapsed, peer_addr) = peer.read().await;
-
-        // 3. 检查在线状态
-        if elapsed >= REG_TIMEOUT {
-            return Ok((PunchHoleResponse { failure: OFFLINE }, None));
-        }
-
-        // 4. 判断是否同一局域网
-        let same_intranet = (peer_is_lan && is_lan) ||
-                            (peer_addr.ip() == addr.ip());
-
-        if same_intranet {
-            // 请求获取本地地址
-            msg_out.set_fetch_local_addr(FetchLocalAddr {
-                socket_addr: AddrMangle::encode(addr).into(),
-                relay_server,
-            });
-        } else {
-            // 发送 Punch Hole 请求给被控端
-            msg_out.set_punch_hole(PunchHole {
-                socket_addr: AddrMangle::encode(addr).into(),
-                nat_type: ph.nat_type,
-                relay_server,
-            });
-        }
-        return Ok((msg_out, Some(peer_addr)));
-    }
-
-    // Peer 不存在
-    Ok((PunchHoleResponse { failure: ID_NOT_EXIST }, None))
-}
-```
-
-**服务器 → 被控端：PunchHole 或 FetchLocalAddr**
-
-```protobuf
-message PunchHole {
-  bytes socket_addr = 1;    // 控制端地址（编码）
-  string relay_server = 2;  // Relay 服务器地址
-  NatType nat_type = 3;     // 控制端 NAT 类型
-}
-
-message FetchLocalAddr {
-  bytes socket_addr = 1;    // 控制端地址（编码）
-  string relay_server = 2;  // Relay 服务器地址
-}
-```
-
-### 4. 被控端响应流程
-
-**被控端 → 服务器：PunchHoleSent 或 LocalAddr**
-
-```protobuf
-message PunchHoleSent {
-  bytes socket_addr = 1;    // 控制端地址
-  string id = 2;            // 被控端 ID
-  string relay_server = 3;  // Relay 服务器
-  NatType nat_type = 4;     // 被控端 NAT 类型
-  string version = 5;       // 客户端版本
-}
-
-message LocalAddr {
-  bytes socket_addr = 1;    // 控制端地址
-  bytes local_addr = 2;     // 被控端本地地址
-  string relay_server = 3;  // Relay 服务器
-  string id = 4;            // 被控端 ID
-  string version = 5;       // 客户端版本
-}
-```
-
-**服务器 → 控制端：PunchHoleResponse**
-
-```protobuf
-message PunchHoleResponse {
-  bytes socket_addr = 1;    // 被控端地址
-  bytes pk = 2;             // 被控端公钥（已签名）
-  enum Failure {
-    ID_NOT_EXIST = 0;
-    OFFLINE = 2;
-    LICENSE_MISMATCH = 3;
-    LICENSE_OVERUSE = 4;
-  }
-  Failure failure = 3;
-  string relay_server = 4;
-  oneof union {
-    NatType nat_type = 5;
-    bool is_local = 6;      // 是否为局域网连接
-  }
-  string other_failure = 7;
-  int32 feedback = 8;
-}
-```
-
-### 5. Relay 请求流程
-
-当 P2P 连接失败或 NAT 类型不支持打洞时，使用 Relay。
-
-**客户端 → 服务器：RequestRelay**
-
-```protobuf
-message RequestRelay {
-  string id = 1;            // 目标 Peer ID
-  string uuid = 2;          // 连接 UUID（用于配对）
-  bytes socket_addr = 3;    // 本端地址
-  string relay_server = 4;  // 指定的 Relay 服务器
-  bool secure = 5;          // 是否使用加密
-  string licence_key = 6;   // 许可证密钥
-  ConnType conn_type = 7;   // 连接类型
-  string token = 8;         // 认证令牌
-}
-```
-
-**服务器 → 客户端：RelayResponse**
-
-```protobuf
-message RelayResponse {
-  bytes socket_addr = 1;    // 对端地址
-  string uuid = 2;          // 连接 UUID
-  string relay_server = 3;  // Relay 服务器地址
-  oneof union {
-    string id = 4;          // 对端 ID
-    bytes pk = 5;           // 对端公钥
-  }
-  string refuse_reason = 6; // 拒绝原因
-  string version = 7;       // 版本
-  int32 feedback = 9;
-}
-```
-
-## NAT 类型检测
-
-**客户端 → 服务器：TestNatRequest**
-
-```protobuf
-message TestNatRequest {
-  int32 serial = 1;  // 配置序列号
-}
-```
-
-**服务器 → 客户端：TestNatResponse**
-
-```protobuf
-message TestNatResponse {
-  int32 port = 1;           // 观测到的源端口
-  ConfigUpdate cu = 2;      // 配置更新
-}
-```
-
-NAT 检测原理：
-1. 客户端同时向主端口（21116）和 NAT 测试端口（21115）发送请求
-2. 比较两次响应中观测到的源端口
-3. 如果端口一致，则为 ASYMMETRIC NAT（适合打洞）
-4. 如果端口不一致，则为 SYMMETRIC NAT（需要 Relay）
-
-## 地址编码
-
-RustDesk 使用 `AddrMangle` 对 SocketAddr 进行编码：
-
-```rust
-// 编码示例
-// IPv4: 4 bytes IP + 2 bytes port = 6 bytes
-// IPv6: 16 bytes IP + 2 bytes port = 18 bytes
-pub fn encode(addr: SocketAddr) -> Vec<u8>;
-pub fn decode(bytes: &[u8]) -> SocketAddr;
-```
-
-## 安全机制
-
-### 服务器签名
-
-当服务器配置了私钥时，会对 Peer 的公钥进行签名：
-
-```rust
-// rustdesk-server/src/rendezvous_server.rs:1160-1182
-async fn get_pk(&mut self, version: &str, id: String) -> Bytes {
-    if version.is_empty() || self.inner.sk.is_none() {
-        Bytes::new()
-    } else {
-        match self.pm.get(&id).await {
-            Some(peer) => {
-                let pk = peer.read().await.pk.clone();
-                // 使用服务器私钥签名 IdPk
-                sign::sign(
-                    &IdPk { id, pk, ..Default::default() }
-                        .write_to_bytes()
-                        .unwrap_or_default(),
-                    self.inner.sk.as_ref().unwrap(),
-                ).into()
-            }
-            _ => Bytes::new(),
-        }
-    }
-}
-```
-
-### IP 封锁
-
-服务器实现了 IP 封锁机制防止滥用：
-
-```rust
-// rustdesk-server/src/rendezvous_server.rs:866-894
-async fn check_ip_blocker(&self, ip: &str, id: &str) -> bool {
-    let mut lock = IP_BLOCKER.lock().await;
-    if let Some(old) = lock.get_mut(ip) {
-        // 每秒请求超过 30 次则封锁
-        if counter.0 > 30 {
-            return false;
-        }
-        // 每天超过 300 个不同 ID 则封锁
-        if counter.0.len() > 300 {
-            return !is_new;
-        }
-    }
-    true
-}
-```
-
-## 时序图
-
-### 完整连接建立流程
-
-```
-控制端              Rendezvous Server           被控端
-  │                       │                       │
-  │  PunchHoleRequest     │                       │
-  ├──────────────────────►│                       │
-  │                       │    PunchHole          │
-  │                       ├──────────────────────►│
-  │                       │                       │
-  │                       │    PunchHoleSent      │
-  │                       │◄──────────────────────┤
-  │  PunchHoleResponse    │                       │
-  │◄──────────────────────┤                       │
-  │                       │                       │
-  │  ─────────── P2P Connection ──────────────────│
-  │◄─────────────────────────────────────────────►│
-```

docs/report/rustdesk/03-relay-protocol.md

@@ -1,318 +0,0 @@
-# Relay 服务器协议
-
-## 概述
-
-Relay Server（hbbr）是 RustDesk 的数据中转服务器，当 P2P 连接无法建立时（如双方都在 Symmetric NAT 后面），所有通信数据通过 Relay Server 转发。
-
-## 服务器架构
-
-### 监听端口
-
-| 端口 | 协议 | 用途 |
-|------|------|------|
-| 21117 | TCP | 主要中转端口 |
-| 21119 | WebSocket | Web 客户端支持 |
-
-### 核心配置
-
-```rust
-// rustdesk-server/src/relay_server.rs:40-46
-static DOWNGRADE_THRESHOLD_100: AtomicUsize = AtomicUsize::new(66);        // 0.66
-static DOWNGRADE_START_CHECK: AtomicUsize = AtomicUsize::new(1_800_000);   // 30分钟 (ms)
-static LIMIT_SPEED: AtomicUsize = AtomicUsize::new(32 * 1024 * 1024);      // 32 Mb/s
-static TOTAL_BANDWIDTH: AtomicUsize = AtomicUsize::new(1024 * 1024 * 1024);// 1024 Mb/s
-static SINGLE_BANDWIDTH: AtomicUsize = AtomicUsize::new(128 * 1024 * 1024);// 128 Mb/s
-const BLACKLIST_FILE: &str = "blacklist.txt";
-const BLOCKLIST_FILE: &str = "blocklist.txt";
-```
-
-## 连接配对机制
-
-### 配对原理
-
-Relay Server 使用 UUID 来配对两个客户端的连接：
-
-1. 第一个客户端连接并发送 `RequestRelay` 消息（包含 UUID）
-2. 服务器将该连接存储在等待队列中
-3. 第二个客户端使用相同的 UUID 连接
-4. 服务器将两个连接配对，开始转发数据
-
-### 配对流程
-
-```rust
-// rustdesk-server/src/relay_server.rs:425-462
-async fn make_pair_(stream: impl StreamTrait, addr: SocketAddr, key: &str, limiter: Limiter) {
-    let mut stream = stream;
-    if let Ok(Some(Ok(bytes))) = timeout(30_000, stream.recv()).await {
-        if let Ok(msg_in) = RendezvousMessage::parse_from_bytes(&bytes) {
-            if let Some(rendezvous_message::Union::RequestRelay(rf)) = msg_in.union {
-                // 验证许可证密钥
-                if !key.is_empty() && rf.licence_key != key {
-                    log::warn!("Relay authentication failed from {}", addr);
-                    return;
-                }
-
-                if !rf.uuid.is_empty() {
-                    // 尝试查找配对
-                    let mut peer = PEERS.lock().await.remove(&rf.uuid);
-                    if let Some(peer) = peer.as_mut() {
-                        // 找到配对，开始中转
-                        log::info!("Relay request {} got paired", rf.uuid);
-                        relay(addr, &mut stream, peer, limiter).await;
-                    } else {
-                        // 没找到，存储等待配对
-                        log::info!("New relay request {} from {}", rf.uuid, addr);
-                        PEERS.lock().await.insert(rf.uuid.clone(), Box::new(stream));
-                        sleep(30.).await;  // 等待 30 秒
-                        PEERS.lock().await.remove(&rf.uuid);  // 超时移除
-                    }
-                }
-            }
-        }
-    }
-}
-```
-
-## 数据转发
-
-### 转发逻辑
-
-```rust
-// rustdesk-server/src/relay_server.rs:464-566
-async fn relay(
-    addr: SocketAddr,
-    stream: &mut impl StreamTrait,
-    peer: &mut Box<dyn StreamTrait>,
-    total_limiter: Limiter,
-) -> ResultType<()> {
-    let limiter = <Limiter>::new(SINGLE_BANDWIDTH.load(Ordering::SeqCst) as f64);
-    let blacklist_limiter = <Limiter>::new(LIMIT_SPEED.load(Ordering::SeqCst) as _);
-
-    loop {
-        tokio::select! {
-            // 从 peer 接收数据，发送给 stream
-            res = peer.recv() => {
-                if let Some(Ok(bytes)) = res {
-                    // 带宽限制
-                    if blacked || downgrade {
-                        blacklist_limiter.consume(bytes.len() * 8).await;
-                    } else {
-                        limiter.consume(bytes.len() * 8).await;
-                    }
-                    total_limiter.consume(bytes.len() * 8).await;
-                    stream.send_raw(bytes.into()).await?;
-                } else {
-                    break;
-                }
-            },
-            // 从 stream 接收数据，发送给 peer
-            res = stream.recv() => {
-                if let Some(Ok(bytes)) = res {
-                    // 带宽限制
-                    limiter.consume(bytes.len() * 8).await;
-                    total_limiter.consume(bytes.len() * 8).await;
-                    peer.send_raw(bytes.into()).await?;
-                } else {
-                    break;
-                }
-            },
-            _ = timer.tick() => {
-                // 超时检测
-                if last_recv_time.elapsed().as_secs() > 30 {
-                    bail!("Timeout");
-                }
-            }
-        }
-
-        // 降级检测
-        if elapsed > DOWNGRADE_START_CHECK && total > elapsed * downgrade_threshold {
-            downgrade = true;
-            log::info!("Downgrade {}, exceed threshold", id);
-        }
-    }
-    Ok(())
-}
-```
-
-### 原始模式
-
-当两端都支持原始模式时，跳过 protobuf 解析以提高性能：
-
-```rust
-// rustdesk-server/src/relay_server.rs:440-444
-if !stream.is_ws() && !peer.is_ws() {
-    peer.set_raw();
-    stream.set_raw();
-    log::info!("Both are raw");
-}
-```
-
-## 带宽控制
-
-### 多级限速
-
-1. **总带宽限制**：整个服务器的总带宽
-2. **单连接限制**：每个中转连接的带宽
-3. **黑名单限速**：对黑名单 IP 的特殊限制
-
-### 降级机制
-
-当连接持续占用高带宽时，会触发降级：
-
-```rust
-// 条件：
-// 1. 连接时间 > DOWNGRADE_START_CHECK (30分钟)
-// 2. 平均带宽 > SINGLE_BANDWIDTH * 0.66
-// 降级后使用 LIMIT_SPEED (32 Mb/s) 限速
-if elapsed > DOWNGRADE_START_CHECK.load(Ordering::SeqCst)
-    && !downgrade
-    && total > elapsed * downgrade_threshold
-{
-    downgrade = true;
-}
-```
-
-## 安全控制
-
-### 黑名单
-
-用于限速特定 IP：
-
-```
-# blacklist.txt
-192.168.1.100
-10.0.0.50
-```
-
-### 封锁名单
-
-用于完全拒绝特定 IP：
-
-```
-# blocklist.txt
-1.2.3.4
-5.6.7.8
-```
-
-### 运行时管理命令
-
-通过本地 TCP 连接（仅限 localhost）发送命令：
-
-```rust
-// rustdesk-server/src/relay_server.rs:152-324
-match fds.next() {
-    Some("h") => // 帮助
-    Some("blacklist-add" | "ba") => // 添加黑名单
-    Some("blacklist-remove" | "br") => // 移除黑名单
-    Some("blacklist" | "b") => // 查看黑名单
-    Some("blocklist-add" | "Ba") => // 添加封锁名单
-    Some("blocklist-remove" | "Br") => // 移除封锁名单
-    Some("blocklist" | "B") => // 查看封锁名单
-    Some("downgrade-threshold" | "dt") => // 设置降级阈值
-    Some("downgrade-start-check" | "t") => // 设置降级检测时间
-    Some("limit-speed" | "ls") => // 设置限速
-    Some("total-bandwidth" | "tb") => // 设置总带宽
-    Some("single-bandwidth" | "sb") => // 设置单连接带宽
-    Some("usage" | "u") => // 查看使用统计
-}
-```
-
-## 协议消息
-
-### RequestRelay
-
-用于建立中转连接的请求消息：
-
-```protobuf
-message RequestRelay {
-  string id = 1;            // 目标 Peer ID
-  string uuid = 2;          // 连接 UUID（配对用）
-  bytes socket_addr = 3;    // 本端地址
-  string relay_server = 4;  // Relay 服务器
-  bool secure = 5;          // 是否加密
-  string licence_key = 6;   // 许可证密钥
-  ConnType conn_type = 7;   // 连接类型
-  string token = 8;         // 认证令牌
-}
-```
-
-## 时序图
-
-### 中转连接建立
-
-```
-客户端 A                  Relay Server                  客户端 B
-   │                          │                            │
-   │   RequestRelay(uuid)     │                            │
-   ├─────────────────────────►│                            │
-   │                          │                            │
-   │                          │  (存储等待配对)              │
-   │                          │                            │
-   │                          │        RequestRelay(uuid)  │
-   │                          │◄───────────────────────────┤
-   │                          │                            │
-   │                          │  (配对成功)                 │
-   │                          │                            │
-   │  ◄────────── 数据转发 ─────────────────────────────────►│
-   │                          │                            │
-```
-
-### 数据转发
-
-```
-客户端 A           Relay Server           客户端 B
-   │                    │                    │
-   │ ────[数据]───────► │                    │
-   │                    │ ────[数据]───────► │
-   │                    │                    │
-   │                    │ ◄───[数据]──────── │
-   │ ◄───[数据]──────── │                    │
-   │                    │                    │
-```
-
-## 性能优化
-
-### 零拷贝
-
-使用 `Bytes` 类型减少内存拷贝：
-
-```rust
-async fn send_raw(&mut self, bytes: Bytes) -> ResultType<()>;
-```
-
-### WebSocket 支持
-
-支持 WebSocket 协议以穿越防火墙：
-
-```rust
-#[async_trait]
-impl StreamTrait for tokio_tungstenite::WebSocketStream<TcpStream> {
-    async fn recv(&mut self) -> Option<Result<BytesMut, Error>> {
-        if let Some(msg) = self.next().await {
-            match msg {
-                Ok(tungstenite::Message::Binary(bytes)) => {
-                    Some(Ok(bytes[..].into()))
-                }
-                // ...
-            }
-        }
-    }
-}
-```
-
-## 监控指标
-
-服务器跟踪以下指标：
-
-| 指标 | 说明 |
-|------|------|
-| elapsed | 连接持续时间 (ms) |
-| total | 总传输数据量 (bit) |
-| highest | 最高瞬时速率 (kb/s) |
-| speed | 当前速率 (kb/s) |
-
-通过 `usage` 命令查看：
-
-```
-192.168.1.100:12345: 3600s 1024.00MB 50000kb/s 45000kb/s 42000kb/s
-```

docs/report/rustdesk/04-p2p-connection.md

@@ -1,424 +0,0 @@
-# P2P 连接流程
-
-## 概述
-
-RustDesk 优先尝试建立 P2P 直连，只有在直连失败时才使用 Relay 中转。P2P 连接支持多种方式：
-- TCP 打洞
-- UDP 打洞（KCP）
-- 局域网直连
-- IPv6 直连
-
-## 连接决策流程
-
-```
-                              开始连接
-                                 │
-                                 ▼
-                         ┌──────────────┐
-                         │ 是否强制 Relay？│
-                         └──────┬───────┘
-                           是   │   否
-                     ┌─────────┴─────────┐
-                     ▼                   ▼
-              使用 Relay           检查 NAT 类型
-                                        │
-                         ┌──────────────┴──────────────┐
-                         │                             │
-                         ▼                             ▼
-                  双方都是对称 NAT？            有一方是可穿透 NAT
-                         │                             │
-                    是   │                             │
-                         ▼                             ▼
-                  使用 Relay                  尝试 P2P 连接
-                                                      │
-                                        ┌─────────────┴─────────────┐
-                                        │                           │
-                                        ▼                           ▼
-                                 同一局域网？                  不同网络
-                                        │                           │
-                                   是   │                           │
-                                        ▼                           ▼
-                               局域网直连                      尝试打洞
-                                                                   │
-                                                    ┌──────────────┴──────────────┐
-                                                    │                             │
-                                                    ▼                             ▼
-                                            TCP 打洞成功？                  UDP 打洞成功？
-                                                    │                             │
-                                               是   │   否                   是   │   否
-                                                    ▼    │                        ▼    │
-                                            TCP P2P 连接  └───────────► KCP P2P 连接   │
-                                                                                       ▼
-                                                                               使用 Relay
-```
-
-## 客户端连接入口
-
-```rust
-// rustdesk/src/client.rs:188-230
-impl Client {
-    pub async fn start(
-        peer: &str,
-        key: &str,
-        token: &str,
-        conn_type: ConnType,
-        interface: impl Interface,
-    ) -> ResultType<...> {
-        // 检查是否为 IP 直连
-        if hbb_common::is_ip_str(peer) {
-            return connect_tcp_local(check_port(peer, RELAY_PORT + 1), None, CONNECT_TIMEOUT).await;
-        }
-
-        // 检查是否为域名:端口格式
-        if hbb_common::is_domain_port_str(peer) {
-            return connect_tcp_local(peer, None, CONNECT_TIMEOUT).await;
-        }
-
-        // 通过 Rendezvous Server 连接
-        let (rendezvous_server, servers, _) = crate::get_rendezvous_server(1_000).await;
-        Self::_start_inner(peer, key, token, conn_type, interface, rendezvous_server, servers).await
-    }
-}
-```
-
-## 被控端处理连接请求
-
-### 处理 PunchHole 消息
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:554-619
-async fn handle_punch_hole(&self, ph: PunchHole, server: ServerPtr) -> ResultType<()> {
-    let peer_addr = AddrMangle::decode(&ph.socket_addr);
-    let relay_server = self.get_relay_server(ph.relay_server);
-
-    // 判断是否需要 Relay
-    if ph.nat_type.enum_value() == Ok(NatType::SYMMETRIC)
-        || Config::get_nat_type() == NatType::SYMMETRIC as i32
-        || relay
-    {
-        // 使用 Relay
-        let uuid = Uuid::new_v4().to_string();
-        return self.create_relay(ph.socket_addr, relay_server, uuid, server, true, true).await;
-    }
-
-    // 尝试 UDP 打洞
-    if ph.udp_port > 0 {
-        peer_addr.set_port(ph.udp_port as u16);
-        self.punch_udp_hole(peer_addr, server, msg_punch).await?;
-        return Ok(());
-    }
-
-    // 尝试 TCP 打洞
-    log::debug!("Punch tcp hole to {:?}", peer_addr);
-    let socket = {
-        let socket = connect_tcp(&*self.host, CONNECT_TIMEOUT).await?;
-        let local_addr = socket.local_addr();
-        // 关键步骤：尝试连接对方，让 NAT 建立映射
-        allow_err!(socket_client::connect_tcp_local(peer_addr, Some(local_addr), 30).await);
-        socket
-    };
-
-    // 发送 PunchHoleSent 告知 Rendezvous Server
-    let mut msg_out = Message::new();
-    msg_out.set_punch_hole_sent(PunchHoleSent {
-        socket_addr: ph.socket_addr,
-        id: Config::get_id(),
-        relay_server,
-        nat_type: nat_type.into(),
-        version: crate::VERSION.to_owned(),
-    });
-    socket.send_raw(msg_out.write_to_bytes()?).await?;
-
-    // 接受控制端连接
-    crate::accept_connection(server.clone(), socket, peer_addr, true).await;
-    Ok(())
-}
-```
-
-### 处理 FetchLocalAddr（局域网连接）
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:481-552
-async fn handle_intranet(&self, fla: FetchLocalAddr, server: ServerPtr) -> ResultType<()> {
-    let peer_addr = AddrMangle::decode(&fla.socket_addr);
-    let relay_server = self.get_relay_server(fla.relay_server.clone());
-
-    // 尝试局域网直连
-    if is_ipv4(&self.addr) && !relay && !config::is_disable_tcp_listen() {
-        if let Err(err) = self.handle_intranet_(fla.clone(), server.clone(), relay_server.clone()).await {
-            log::debug!("Failed to handle intranet: {:?}, will try relay", err);
-        } else {
-            return Ok(());
-        }
-    }
-
-    // 局域网直连失败，使用 Relay
-    let uuid = Uuid::new_v4().to_string();
-    self.create_relay(fla.socket_addr, relay_server, uuid, server, true, true).await
-}
-
-async fn handle_intranet_(&self, fla: FetchLocalAddr, server: ServerPtr, relay_server: String) -> ResultType<()> {
-    let peer_addr = AddrMangle::decode(&fla.socket_addr);
-    let mut socket = connect_tcp(&*self.host, CONNECT_TIMEOUT).await?;
-    let local_addr = socket.local_addr();
-
-    // 发送本地地址给 Rendezvous Server
-    let mut msg_out = Message::new();
-    msg_out.set_local_addr(LocalAddr {
-        id: Config::get_id(),
-        socket_addr: AddrMangle::encode(peer_addr).into(),
-        local_addr: AddrMangle::encode(local_addr).into(),
-        relay_server,
-        version: crate::VERSION.to_owned(),
-    });
-    socket.send_raw(msg_out.write_to_bytes()?).await?;
-
-    // 接受连接
-    crate::accept_connection(server.clone(), socket, peer_addr, true).await;
-    Ok(())
-}
-```
-
-## UDP 打洞 (KCP)
-
-### 打洞原理
-
-UDP 打洞利用 NAT 的端口映射特性：
-
-1. A 向 Rendezvous Server 注册，NAT 创建映射 `A_internal:port1 → A_external:port2`
-2. B 同样注册，创建映射 `B_internal:port3 → B_external:port4`
-3. A 向 B 的外部地址发送 UDP 包，A 的 NAT 创建到 B 的映射
-4. B 向 A 的外部地址发送 UDP 包，B 的 NAT 创建到 A 的映射
-5. 如果 NAT 不是 Symmetric 类型，双方的包可以到达对方
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:621-642
-async fn punch_udp_hole(
-    &self,
-    peer_addr: SocketAddr,
-    server: ServerPtr,
-    msg_punch: PunchHoleSent,
-) -> ResultType<()> {
-    let mut msg_out = Message::new();
-    msg_out.set_punch_hole_sent(msg_punch);
-    let (socket, addr) = new_direct_udp_for(&self.host).await?;
-    let data = msg_out.write_to_bytes()?;
-
-    // 发送到 Rendezvous Server
-    socket.send_to(&data, addr).await?;
-
-    // 多次尝试发送以增加成功率
-    let socket_cloned = socket.clone();
-    tokio::spawn(async move {
-        for _ in 0..2 {
-            let tm = (hbb_common::time_based_rand() % 20 + 10) as f32 / 1000.;
-            hbb_common::sleep(tm).await;
-            socket.send_to(&data, addr).await.ok();
-        }
-    });
-
-    // 等待对方连接
-    udp_nat_listen(socket_cloned.clone(), peer_addr, peer_addr, server).await?;
-    Ok(())
-}
-```
-
-### KCP 协议
-
-RustDesk 在 UDP 上使用 KCP 协议提供可靠传输：
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:824-851
-async fn udp_nat_listen(
-    socket: Arc<tokio::net::UdpSocket>,
-    peer_addr: SocketAddr,
-    peer_addr_v4: SocketAddr,
-    server: ServerPtr,
-) -> ResultType<()> {
-    socket.connect(peer_addr).await?;
-
-    // 执行 UDP 打洞
-    let res = crate::punch_udp(socket.clone(), true).await?;
-
-    // 建立 KCP 流
-    let stream = crate::kcp_stream::KcpStream::accept(
-        socket,
-        Duration::from_millis(CONNECT_TIMEOUT as _),
-        res,
-    ).await?;
-
-    // 创建连接
-    crate::server::create_tcp_connection(server, stream.1, peer_addr_v4, true).await?;
-    Ok(())
-}
-```
-
-## TCP 打洞
-
-### 原理
-
-TCP 打洞比 UDP 更难，因为 TCP 需要三次握手。基本思路：
-
-1. A 和 B 都尝试同时向对方发起连接
-2. 第一个 SYN 包会被对方的 NAT 丢弃（因为没有映射）
-3. 但这个 SYN 包会在 A 的 NAT 上创建映射
-4. 当 B 的 SYN 包到达 A 的 NAT 时，由于已有映射，会被转发给 A
-5. 连接建立
-
-### 实现
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:604-617
-log::debug!("Punch tcp hole to {:?}", peer_addr);
-let mut socket = {
-    let socket = connect_tcp(&*self.host, CONNECT_TIMEOUT).await?;
-    let local_addr = socket.local_addr();
-    // 关键：使用相同的本地地址尝试连接对方
-    // 这会在 NAT 上创建映射，使对方的连接请求能够到达
-    allow_err!(socket_client::connect_tcp_local(peer_addr, Some(local_addr), 30).await);
-    socket
-};
-```
-
-## Relay 连接
-
-当 P2P 失败时，使用 Relay：
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:434-479
-async fn create_relay(
-    &self,
-    socket_addr: Vec<u8>,
-    relay_server: String,
-    uuid: String,
-    server: ServerPtr,
-    secure: bool,
-    initiate: bool,
-) -> ResultType<()> {
-    let peer_addr = AddrMangle::decode(&socket_addr);
-    log::info!(
-        "create_relay requested from {:?}, relay_server: {}, uuid: {}, secure: {}",
-        peer_addr, relay_server, uuid, secure,
-    );
-
-    // 连接 Rendezvous Server 发送 RelayResponse
-    let mut socket = connect_tcp(&*self.host, CONNECT_TIMEOUT).await?;
-    let mut msg_out = Message::new();
-    let mut rr = RelayResponse {
-        socket_addr: socket_addr.into(),
-        version: crate::VERSION.to_owned(),
-        ..Default::default()
-    };
-    if initiate {
-        rr.uuid = uuid.clone();
-        rr.relay_server = relay_server.clone();
-        rr.set_id(Config::get_id());
-    }
-    msg_out.set_relay_response(rr);
-    socket.send(&msg_out).await?;
-
-    // 连接 Relay Server
-    crate::create_relay_connection(
-        server,
-        relay_server,
-        uuid,
-        peer_addr,
-        secure,
-        is_ipv4(&self.addr),
-    ).await;
-    Ok(())
-}
-```
-
-## IPv6 支持
-
-RustDesk 优先尝试 IPv6 连接：
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:808-822
-async fn start_ipv6(
-    peer_addr_v6: SocketAddr,
-    peer_addr_v4: SocketAddr,
-    server: ServerPtr,
-) -> bytes::Bytes {
-    crate::test_ipv6().await;
-    if let Some((socket, local_addr_v6)) = crate::get_ipv6_socket().await {
-        let server = server.clone();
-        tokio::spawn(async move {
-            allow_err!(udp_nat_listen(socket.clone(), peer_addr_v6, peer_addr_v4, server).await);
-        });
-        return local_addr_v6;
-    }
-    Default::default()
-}
-```
-
-## 连接状态机
-
-```
-          ┌─────────────────────────────────────────┐
-          │                                         │
-          ▼                                         │
-    ┌───────────┐                              ┌────┴────┐
-    │ 等待连接   │──────PunchHoleRequest──────►│正在连接  │
-    └───────────┘                              └────┬────┘
-                                                   │
-                    ┌──────────────────────────────┼──────────────────────────────┐
-                    │                              │                              │
-                    ▼                              ▼                              ▼
-             ┌────────────┐                ┌─────────────┐                ┌─────────────┐
-             │ P2P TCP    │                │ P2P UDP/KCP │                │   Relay     │
-             │ 连接中     │                │ 连接中      │                │   连接中     │
-             └─────┬──────┘                └──────┬──────┘                └──────┬──────┘
-                   │                              │                              │
-          成功     │   失败                成功   │   失败                 成功   │   失败
-                   │    │                        │    │                         │    │
-                   ▼    │                        ▼    │                         ▼    │
-            ┌──────────┐│                 ┌──────────┐│                  ┌──────────┐│
-            │已连接     ││                 │已连接     ││                  │已连接     ││
-            │(直连)    ││                 │(UDP)     ││                  │(中转)    ││
-            └──────────┘│                 └──────────┘│                  └──────────┘│
-                        │                             │                              │
-                        └──────────────►尝试 Relay◄───┘                              │
-                                            │                                        │
-                                            └────────────────────────────────────────┘
-```
-
-## 直接连接模式
-
-用户可以配置允许直接 TCP 连接（不经过 Rendezvous Server）：
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:727-792
-async fn direct_server(server: ServerPtr) {
-    let mut listener = None;
-    let mut port = get_direct_port();  // 默认 21118
-
-    loop {
-        let disabled = !option2bool(OPTION_DIRECT_SERVER, &Config::get_option(OPTION_DIRECT_SERVER));
-
-        if !disabled && listener.is_none() {
-            match hbb_common::tcp::listen_any(port as _).await {
-                Ok(l) => {
-                    listener = Some(l);
-                    log::info!("Direct server listening on: {:?}", l.local_addr());
-                }
-                Err(err) => {
-                    log::error!("Failed to start direct server: {}", err);
-                }
-            }
-        }
-
-        if let Some(l) = listener.as_mut() {
-            if let Ok(Ok((stream, addr))) = hbb_common::timeout(1000, l.accept()).await {
-                stream.set_nodelay(true).ok();
-                log::info!("direct access from {}", addr);
-                let server = server.clone();
-                tokio::spawn(async move {
-                    crate::server::create_tcp_connection(server, stream, addr, false).await
-                });
-            }
-        }
-    }
-}
-```

docs/report/rustdesk/05-message-format.md

@@ -1,574 +0,0 @@
-# 消息格式定义
-
-## 概述
-
-RustDesk 使用 Protocol Buffers (protobuf) 定义所有网络消息格式。主要有两个 proto 文件：
-
-- `rendezvous.proto` - Rendezvous/Relay 服务器通信消息
-- `message.proto` - 客户端之间通信消息
-
-## Rendezvous 消息 (rendezvous.proto)
-
-### 顶层消息
-
-```protobuf
-message RendezvousMessage {
-  oneof union {
-    RegisterPeer register_peer = 6;
-    RegisterPeerResponse register_peer_response = 7;
-    PunchHoleRequest punch_hole_request = 8;
-    PunchHole punch_hole = 9;
-    PunchHoleSent punch_hole_sent = 10;
-    PunchHoleResponse punch_hole_response = 11;
-    FetchLocalAddr fetch_local_addr = 12;
-    LocalAddr local_addr = 13;
-    ConfigUpdate configure_update = 14;
-    RegisterPk register_pk = 15;
-    RegisterPkResponse register_pk_response = 16;
-    SoftwareUpdate software_update = 17;
-    RequestRelay request_relay = 18;
-    RelayResponse relay_response = 19;
-    TestNatRequest test_nat_request = 20;
-    TestNatResponse test_nat_response = 21;
-    PeerDiscovery peer_discovery = 22;
-    OnlineRequest online_request = 23;
-    OnlineResponse online_response = 24;
-    KeyExchange key_exchange = 25;
-    HealthCheck hc = 26;
-  }
-}
-```
-
-### 注册相关
-
-```protobuf
-// Peer 注册
-message RegisterPeer {
-  string id = 1;      // Peer ID
-  int32 serial = 2;   // 配置序列号
-}
-
-message RegisterPeerResponse {
-  bool request_pk = 2;  // 是否需要注册公钥
-}
-
-// 公钥注册
-message RegisterPk {
-  string id = 1;       // Peer ID
-  bytes uuid = 2;      // 设备 UUID
-  bytes pk = 3;        // Ed25519 公钥
-  string old_id = 4;   // 旧 ID
-}
-
-message RegisterPkResponse {
-  enum Result {
-    OK = 0;
-    UUID_MISMATCH = 2;
-    ID_EXISTS = 3;
-    TOO_FREQUENT = 4;
-    INVALID_ID_FORMAT = 5;
-    NOT_SUPPORT = 6;
-    SERVER_ERROR = 7;
-  }
-  Result result = 1;
-  int32 keep_alive = 2;
-}
-```
-
-### 连接协调相关
-
-```protobuf
-// 连接类型
-enum ConnType {
-  DEFAULT_CONN = 0;
-  FILE_TRANSFER = 1;
-  PORT_FORWARD = 2;
-  RDP = 3;
-  VIEW_CAMERA = 4;
-}
-
-// NAT 类型
-enum NatType {
-  UNKNOWN_NAT = 0;
-  ASYMMETRIC = 1;   // 可打洞
-  SYMMETRIC = 2;    // 需要中转
-}
-
-// Punch Hole 请求
-message PunchHoleRequest {
-  string id = 1;           // 目标 Peer ID
-  NatType nat_type = 2;
-  string licence_key = 3;
-  ConnType conn_type = 4;
-  string token = 5;
-  string version = 6;
-}
-
-// Punch Hole 响应
-message PunchHoleResponse {
-  bytes socket_addr = 1;      // 目标地址
-  bytes pk = 2;               // 公钥（已签名）
-  enum Failure {
-    ID_NOT_EXIST = 0;
-    OFFLINE = 2;
-    LICENSE_MISMATCH = 3;
-    LICENSE_OVERUSE = 4;
-  }
-  Failure failure = 3;
-  string relay_server = 4;
-  oneof union {
-    NatType nat_type = 5;
-    bool is_local = 6;
-  }
-  string other_failure = 7;
-  int32 feedback = 8;
-}
-
-// 服务器转发给被控端
-message PunchHole {
-  bytes socket_addr = 1;      // 控制端地址
-  string relay_server = 2;
-  NatType nat_type = 3;
-}
-
-// 被控端发送给服务器
-message PunchHoleSent {
-  bytes socket_addr = 1;
-  string id = 2;
-  string relay_server = 3;
-  NatType nat_type = 4;
-  string version = 5;
-}
-```
-
-### Relay 相关
-
-```protobuf
-// Relay 请求
-message RequestRelay {
-  string id = 1;
-  string uuid = 2;          // 配对 UUID
-  bytes socket_addr = 3;
-  string relay_server = 4;
-  bool secure = 5;
-  string licence_key = 6;
-  ConnType conn_type = 7;
-  string token = 8;
-}
-
-// Relay 响应
-message RelayResponse {
-  bytes socket_addr = 1;
-  string uuid = 2;
-  string relay_server = 3;
-  oneof union {
-    string id = 4;
-    bytes pk = 5;
-  }
-  string refuse_reason = 6;
-  string version = 7;
-  int32 feedback = 9;
-}
-```
-
-## 会话消息 (message.proto)
-
-### 顶层消息
-
-```protobuf
-message Message {
-  oneof union {
-    SignedId signed_id = 3;
-    PublicKey public_key = 4;
-    TestDelay test_delay = 5;
-    VideoFrame video_frame = 6;
-    LoginRequest login_request = 7;
-    LoginResponse login_response = 8;
-    Hash hash = 9;
-    MouseEvent mouse_event = 10;
-    AudioFrame audio_frame = 11;
-    CursorData cursor_data = 12;
-    CursorPosition cursor_position = 13;
-    uint64 cursor_id = 14;
-    KeyEvent key_event = 15;
-    Clipboard clipboard = 16;
-    FileAction file_action = 17;
-    FileResponse file_response = 18;
-    Misc misc = 19;
-    Cliprdr cliprdr = 20;
-    MessageBox message_box = 21;
-    SwitchSidesResponse switch_sides_response = 22;
-    VoiceCallRequest voice_call_request = 23;
-    VoiceCallResponse voice_call_response = 24;
-    PeerInfo peer_info = 25;
-    PointerDeviceEvent pointer_device_event = 26;
-    Auth2FA auth_2fa = 27;
-    MultiClipboards multi_clipboards = 28;
-  }
-}
-```
-
-### 认证相关
-
-```protobuf
-// ID 和公钥
-message IdPk {
-  string id = 1;
-  bytes pk = 2;
-}
-
-// 密钥交换
-message PublicKey {
-  bytes asymmetric_value = 1;  // X25519 公钥
-  bytes symmetric_value = 2;   // 加密的对称密钥
-}
-
-// 签名的 ID
-message SignedId {
-  bytes id = 1;  // 签名的 IdPk
-}
-
-// 密码哈希挑战
-message Hash {
-  string salt = 1;
-  string challenge = 2;
-}
-
-// 登录请求
-message LoginRequest {
-  string username = 1;
-  bytes password = 2;         // 加密的密码
-  string my_id = 4;
-  string my_name = 5;
-  OptionMessage option = 6;
-  oneof union {
-    FileTransfer file_transfer = 7;
-    PortForward port_forward = 8;
-    ViewCamera view_camera = 15;
-  }
-  bool video_ack_required = 9;
-  uint64 session_id = 10;
-  string version = 11;
-  OSLogin os_login = 12;
-  string my_platform = 13;
-  bytes hwid = 14;
-}
-
-// 登录响应
-message LoginResponse {
-  oneof union {
-    string error = 1;
-    PeerInfo peer_info = 2;
-  }
-  bool enable_trusted_devices = 3;
-}
-
-// 2FA 认证
-message Auth2FA {
-  string code = 1;
-  bytes hwid = 2;
-}
-```
-
-### 视频相关
-
-```protobuf
-// 编码后的视频帧
-message EncodedVideoFrame {
-  bytes data = 1;
-  bool key = 2;     // 是否关键帧
-  int64 pts = 3;    // 时间戳
-}
-
-message EncodedVideoFrames {
-  repeated EncodedVideoFrame frames = 1;
-}
-
-// 视频帧
-message VideoFrame {
-  oneof union {
-    EncodedVideoFrames vp9s = 6;
-    RGB rgb = 7;
-    YUV yuv = 8;
-    EncodedVideoFrames h264s = 10;
-    EncodedVideoFrames h265s = 11;
-    EncodedVideoFrames vp8s = 12;
-    EncodedVideoFrames av1s = 13;
-  }
-  int32 display = 14;  // 显示器索引
-}
-
-// 显示信息
-message DisplayInfo {
-  sint32 x = 1;
-  sint32 y = 2;
-  int32 width = 3;
-  int32 height = 4;
-  string name = 5;
-  bool online = 6;
-  bool cursor_embedded = 7;
-  Resolution original_resolution = 8;
-  double scale = 9;
-}
-```
-
-### 输入相关
-
-```protobuf
-// 鼠标事件
-message MouseEvent {
-  int32 mask = 1;      // 按钮掩码
-  sint32 x = 2;
-  sint32 y = 3;
-  repeated ControlKey modifiers = 4;
-}
-
-// 键盘事件
-message KeyEvent {
-  bool down = 1;       // 按下/释放
-  bool press = 2;      // 单击
-  oneof union {
-    ControlKey control_key = 3;
-    uint32 chr = 4;         // 字符码
-    uint32 unicode = 5;     // Unicode
-    string seq = 6;         // 字符序列
-    uint32 win2win_hotkey = 7;
-  }
-  repeated ControlKey modifiers = 8;
-  KeyboardMode mode = 9;
-}
-
-// 键盘模式
-enum KeyboardMode {
-  Legacy = 0;
-  Map = 1;
-  Translate = 2;
-  Auto = 3;
-}
-
-// 控制键枚举（部分）
-enum ControlKey {
-  Unknown = 0;
-  Alt = 1;
-  Backspace = 2;
-  CapsLock = 3;
-  Control = 4;
-  Delete = 5;
-  // ... 更多按键
-  CtrlAltDel = 100;
-  LockScreen = 101;
-}
-```
-
-### 音频相关
-
-```protobuf
-// 音频格式
-message AudioFormat {
-  uint32 sample_rate = 1;
-  uint32 channels = 2;
-}
-
-// 音频帧
-message AudioFrame {
-  bytes data = 1;  // Opus 编码数据
-}
-```
-
-### 剪贴板相关
-
-```protobuf
-// 剪贴板格式
-enum ClipboardFormat {
-  Text = 0;
-  Rtf = 1;
-  Html = 2;
-  ImageRgba = 21;
-  ImagePng = 22;
-  ImageSvg = 23;
-  Special = 31;
-}
-
-// 剪贴板内容
-message Clipboard {
-  bool compress = 1;
-  bytes content = 2;
-  int32 width = 3;
-  int32 height = 4;
-  ClipboardFormat format = 5;
-  string special_name = 6;
-}
-
-message MultiClipboards {
-  repeated Clipboard clipboards = 1;
-}
-```
-
-### 文件传输相关
-
-```protobuf
-// 文件操作
-message FileAction {
-  oneof union {
-    ReadDir read_dir = 1;
-    FileTransferSendRequest send = 2;
-    FileTransferReceiveRequest receive = 3;
-    FileDirCreate create = 4;
-    FileRemoveDir remove_dir = 5;
-    FileRemoveFile remove_file = 6;
-    ReadAllFiles all_files = 7;
-    FileTransferCancel cancel = 8;
-    FileTransferSendConfirmRequest send_confirm = 9;
-    FileRename rename = 10;
-    ReadEmptyDirs read_empty_dirs = 11;
-  }
-}
-
-// 文件响应
-message FileResponse {
-  oneof union {
-    FileDirectory dir = 1;
-    FileTransferBlock block = 2;
-    FileTransferError error = 3;
-    FileTransferDone done = 4;
-    FileTransferDigest digest = 5;
-    ReadEmptyDirsResponse empty_dirs = 6;
-  }
-}
-
-// 文件传输块
-message FileTransferBlock {
-  int32 id = 1;
-  sint32 file_num = 2;
-  bytes data = 3;
-  bool compressed = 4;
-  uint32 blk_id = 5;
-}
-
-// 文件条目
-message FileEntry {
-  FileType entry_type = 1;
-  string name = 2;
-  bool is_hidden = 3;
-  uint64 size = 4;
-  uint64 modified_time = 5;
-}
-```
-
-### 杂项消息
-
-```protobuf
-message Misc {
-  oneof union {
-    ChatMessage chat_message = 4;
-    SwitchDisplay switch_display = 5;
-    PermissionInfo permission_info = 6;
-    OptionMessage option = 7;
-    AudioFormat audio_format = 8;
-    string close_reason = 9;
-    bool refresh_video = 10;
-    bool video_received = 12;
-    BackNotification back_notification = 13;
-    bool restart_remote_device = 14;
-    // ... 更多选项
-  }
-}
-
-// Peer 信息
-message PeerInfo {
-  string username = 1;
-  string hostname = 2;
-  string platform = 3;
-  repeated DisplayInfo displays = 4;
-  int32 current_display = 5;
-  bool sas_enabled = 6;
-  string version = 7;
-  Features features = 9;
-  SupportedEncoding encoding = 10;
-  SupportedResolutions resolutions = 11;
-  string platform_additions = 12;
-  WindowsSessions windows_sessions = 13;
-}
-
-// 选项消息
-message OptionMessage {
-  enum BoolOption {
-    NotSet = 0;
-    No = 1;
-    Yes = 2;
-  }
-  ImageQuality image_quality = 1;
-  BoolOption lock_after_session_end = 2;
-  BoolOption show_remote_cursor = 3;
-  BoolOption privacy_mode = 4;
-  BoolOption block_input = 5;
-  int32 custom_image_quality = 6;
-  BoolOption disable_audio = 7;
-  BoolOption disable_clipboard = 8;
-  BoolOption enable_file_transfer = 9;
-  SupportedDecoding supported_decoding = 10;
-  int32 custom_fps = 11;
-  // ... 更多选项
-}
-```
-
-## 消息编码
-
-### 长度前缀
-
-TCP 传输时使用长度前缀编码：
-
-```rust
-// hbb_common/src/bytes_codec.rs
-pub struct BytesCodec {
-    state: DecodeState,
-    raw: bool,
-}
-
-impl Decoder for BytesCodec {
-    type Item = BytesMut;
-    type Error = std::io::Error;
-
-    fn decode(&mut self, buf: &mut BytesMut) -> Result<Option<BytesMut>, Self::Error> {
-        if self.raw {
-            // 原始模式：直接返回数据
-            if buf.is_empty() {
-                Ok(None)
-            } else {
-                Ok(Some(buf.split()))
-            }
-        } else {
-            // 标准模式：4 字节长度前缀 + 数据
-            match self.state {
-                DecodeState::Head => {
-                    if buf.len() < 4 {
-                        return Ok(None);
-                    }
-                    let len = u32::from_le_bytes([buf[0], buf[1], buf[2], buf[3]]) as usize;
-                    buf.advance(4);
-                    self.state = DecodeState::Data(len);
-                    self.decode(buf)
-                }
-                DecodeState::Data(len) => {
-                    if buf.len() < len {
-                        return Ok(None);
-                    }
-                    let data = buf.split_to(len);
-                    self.state = DecodeState::Head;
-                    Ok(Some(data))
-                }
-            }
-        }
-    }
-}
-```
-
-### 加密模式
-
-当启用加密时，消息结构为：
-
-```
-┌─────────────┬─────────────┬─────────────────────────┐
-│  Length(4)  │  Nonce(8)   │  Encrypted Data(N)      │
-└─────────────┴─────────────┴─────────────────────────┘
-```

docs/report/rustdesk/06-encryption.md

@@ -1,342 +0,0 @@
-# 加密机制
-
-## 概述
-
-RustDesk 使用 libsodium (sodiumoxide) 库实现端到端加密，主要包含：
-
-- **Ed25519**: 用于身份签名和验证
-- **X25519**: 用于密钥交换
-- **ChaCha20-Poly1305**: 用于对称加密
-
-## 密钥类型
-
-### 1. 身份密钥对 (Ed25519)
-
-用于 Peer 身份认证和签名：
-
-```rust
-// 生成密钥对
-use sodiumoxide::crypto::sign;
-let (pk, sk) = sign::gen_keypair();
-// pk: sign::PublicKey (32 bytes)
-// sk: sign::SecretKey (64 bytes)
-```
-
-### 2. 服务器签名密钥
-
-Rendezvous Server 可以配置签名密钥，用于签名 Peer 公钥：
-
-```rust
-// rustdesk-server/src/rendezvous_server.rs:1185-1210
-fn get_server_sk(key: &str) -> (String, Option<sign::SecretKey>) {
-    let mut out_sk = None;
-    let mut key = key.to_owned();
-
-    // 如果是 base64 编码的私钥
-    if let Ok(sk) = base64::decode(&key) {
-        if sk.len() == sign::SECRETKEYBYTES {
-            log::info!("The key is a crypto private key");
-            key = base64::encode(&sk[(sign::SECRETKEYBYTES / 2)..]);  // 公钥部分
-            let mut tmp = [0u8; sign::SECRETKEYBYTES];
-            tmp[..].copy_from_slice(&sk);
-            out_sk = Some(sign::SecretKey(tmp));
-        }
-    }
-
-    // 如果是占位符，生成新密钥对
-    if key.is_empty() || key == "-" || key == "_" {
-        let (pk, sk) = crate::common::gen_sk(0);
-        out_sk = sk;
-        if !key.is_empty() {
-            key = pk;
-        }
-    }
-
-    if !key.is_empty() {
-        log::info!("Key: {}", key);
-    }
-    (key, out_sk)
-}
-```
-
-### 3. 会话密钥 (X25519 + ChaCha20)
-
-用于客户端之间的加密通信：
-
-```rust
-// hbb_common/src/tcp.rs:27-28
-#[derive(Clone)]
-pub struct Encrypt(pub Key, pub u64, pub u64);
-// Key: secretbox::Key (32 bytes)
-// u64: 发送计数器
-// u64: 接收计数器
-```
-
-## 密钥交换流程
-
-### 1. 身份验证
-
-客户端首先交换签名的身份：
-
-```protobuf
-message IdPk {
-  string id = 1;   // Peer ID
-  bytes pk = 2;    // Ed25519 公钥
-}
-
-message SignedId {
-  bytes id = 1;    // 签名的 IdPk (by server or self)
-}
-```
-
-### 2. X25519 密钥交换
-
-使用 X25519 ECDH 生成共享密钥：
-
-```rust
-// 生成临时密钥对
-use sodiumoxide::crypto::box_;
-let (our_pk, our_sk) = box_::gen_keypair();
-
-// 计算共享密钥
-let shared_secret = box_::curve25519xsalsa20poly1305::scalarmult(&our_sk, &their_pk);
-
-// 派生对称密钥
-let symmetric_key = secretbox::Key::from_slice(&shared_secret[..32]).unwrap();
-```
-
-### 3. 对称密钥消息
-
-```protobuf
-message PublicKey {
-  bytes asymmetric_value = 1;  // X25519 公钥
-  bytes symmetric_value = 2;   // 加密的对称密钥（用于额外安全）
-}
-```
-
-## 会话加密
-
-### 加密实现
-
-```rust
-// hbb_common/src/tcp.rs
-impl Encrypt {
-    pub fn new(key: Key) -> Self {
-        Self(key, 0, 0)  // 初始化计数器为 0
-    }
-
-    // 加密
-    pub fn enc(&mut self, data: &[u8]) -> Vec<u8> {
-        self.1 += 1;  // 递增发送计数器
-        let nonce = self.get_nonce(self.1);
-        let encrypted = secretbox::seal(data, &nonce, &self.0);
-
-        // 格式: nonce (8 bytes) + encrypted data
-        let mut result = Vec::with_capacity(8 + encrypted.len());
-        result.extend_from_slice(&self.1.to_le_bytes());
-        result.extend_from_slice(&encrypted);
-        result
-    }
-
-    // 解密
-    pub fn dec(&mut self, data: &mut BytesMut) -> io::Result<()> {
-        if data.len() < 8 + secretbox::MACBYTES {
-            return Err(io::Error::new(io::ErrorKind::InvalidData, "too short"));
-        }
-
-        // 提取 nonce
-        let counter = u64::from_le_bytes(data[..8].try_into().unwrap());
-
-        // 防重放攻击检查
-        if counter <= self.2 {
-            return Err(io::Error::new(io::ErrorKind::InvalidData, "replay attack"));
-        }
-        self.2 = counter;
-
-        let nonce = self.get_nonce(counter);
-        let plaintext = secretbox::open(&data[8..], &nonce, &self.0)
-            .map_err(|_| io::Error::new(io::ErrorKind::InvalidData, "decrypt failed"))?;
-
-        data.clear();
-        data.extend_from_slice(&plaintext);
-        Ok(())
-    }
-
-    fn get_nonce(&self, counter: u64) -> Nonce {
-        let mut nonce = [0u8; 24];
-        nonce[..8].copy_from_slice(&counter.to_le_bytes());
-        Nonce(nonce)
-    }
-}
-```
-
-### 消息格式
-
-加密后的消息结构：
-
-```
-┌──────────────────┬─────────────────────────────────────────┐
-│   Counter (8B)   │   Encrypted Data + MAC (N+16 bytes)     │
-└──────────────────┴─────────────────────────────────────────┘
-```
-
-## 密码验证
-
-### 挑战-响应机制
-
-被控端生成随机盐和挑战，控制端计算哈希响应：
-
-```protobuf
-message Hash {
-  string salt = 1;       // 随机盐
-  string challenge = 2;  // 随机挑战
-}
-```
-
-### 密码处理
-
-```rust
-// 客户端计算密码哈希
-fn get_password_hash(password: &str, salt: &str) -> Vec<u8> {
-    let mut hasher = Sha256::new();
-    hasher.update(password.as_bytes());
-    hasher.update(salt.as_bytes());
-    hasher.finalize().to_vec()
-}
-
-// 发送加密的密码（使用对称密钥加密）
-fn encrypt_password(password_hash: &[u8], symmetric_key: &Key) -> Vec<u8> {
-    secretbox::seal(password_hash, &nonce, symmetric_key)
-}
-```
-
-## 服务器公钥验证
-
-### 签名验证
-
-如果 Rendezvous Server 配置了密钥，会签名 Peer 公钥：
-
-```rust
-// 服务器签名 IdPk
-let signed_id_pk = sign::sign(
-    &IdPk { id, pk, ..Default::default() }
-        .write_to_bytes()?,
-    &server_sk,
-);
-
-// 客户端验证
-fn verify_server_signature(signed_pk: &[u8], server_pk: &sign::PublicKey) -> Option<IdPk> {
-    if let Ok(verified) = sign::verify(signed_pk, server_pk) {
-        return IdPk::parse_from_bytes(&verified).ok();
-    }
-    None
-}
-```
-
-### 客户端获取服务器公钥
-
-```rust
-pub async fn get_rs_pk(id: &str) -> ResultType<(String, sign::PublicKey)> {
-    // 从配置或 Rendezvous Server 获取公钥
-    let key = Config::get_option("key");
-    if !key.is_empty() {
-        if let Ok(pk) = base64::decode(&key) {
-            if pk.len() == sign::PUBLICKEYBYTES {
-                return Ok((key, sign::PublicKey::from_slice(&pk).unwrap()));
-            }
-        }
-    }
-    // ... 从服务器获取
-}
-```
-
-## TCP 连接加密
-
-### 安全 TCP 握手
-
-```rust
-// rustdesk/src/common.rs
-pub async fn secure_tcp(conn: &mut Stream, key: &str) -> ResultType<()> {
-    // 1. 生成临时 X25519 密钥对
-    let (our_pk, our_sk) = box_::gen_keypair();
-
-    // 2. 发送我们的公钥
-    let mut msg = Message::new();
-    msg.set_public_key(PublicKey {
-        asymmetric_value: our_pk.0.to_vec().into(),
-        ..Default::default()
-    });
-    conn.send(&msg).await?;
-
-    // 3. 接收对方公钥
-    let msg = conn.next_timeout(CONNECT_TIMEOUT).await?
-        .ok_or_else(|| anyhow!("timeout"))?;
-    let their_pk = msg.get_public_key();
-
-    // 4. 计算共享密钥
-    let shared = box_::curve25519xsalsa20poly1305::scalarmult(
-        &our_sk,
-        &box_::PublicKey::from_slice(&their_pk.asymmetric_value)?,
-    );
-
-    // 5. 设置加密
-    conn.set_key(secretbox::Key::from_slice(&shared[..32]).unwrap());
-    Ok(())
-}
-```
-
-## 安全特性
-
-### 1. 前向保密
-
-每个会话使用临时密钥对，即使长期密钥泄露，历史会话仍然安全。
-
-### 2. 重放攻击防护
-
-使用递增计数器作为 nonce 的一部分，拒绝旧的或重复的消息。
-
-### 3. 中间人攻击防护
-
-- 服务器签名 Peer 公钥
-- 可配置服务器公钥验证
-
-### 4. 密码暴力破解防护
-
-- 使用盐和多次哈希
-- 服务器端限流
-
-## 加密算法参数
-
-| 算法 | 密钥大小 | Nonce 大小 | MAC 大小 |
-|------|----------|------------|----------|
-| Ed25519 | 64 bytes (private), 32 bytes (public) | N/A | 64 bytes |
-| X25519 | 32 bytes | N/A | N/A |
-| ChaCha20-Poly1305 | 32 bytes | 24 bytes | 16 bytes |
-
-## 密钥生命周期
-
-```
-┌─────────────────────────────────────────────────────────────┐
-│                     长期密钥 (Ed25519)                        │
-│  ┌─────────────────┐                                        │
-│  │ 设备首次启动时生成 │                                        │
-│  │ 存储在配置文件中  │                                        │
-│  └─────────────────┘                                        │
-└─────────────────────────────────────────────────────────────┘
-                              │
-                              ▼
-┌─────────────────────────────────────────────────────────────┐
-│                     会话密钥 (X25519)                        │
-│  ┌─────────────────┐    ┌─────────────────┐                 │
-│  │ 每次连接时生成    │───►│ 用于密钥协商     │                 │
-│  │ 临时密钥对       │    │ 派生对称密钥     │                 │
-│  └─────────────────┘    └─────────────────┘                 │
-│                              │                              │
-│                              ▼                              │
-│  ┌─────────────────────────────────────────────────────┐   │
-│  │              对称密钥 (ChaCha20-Poly1305)            │   │
-│  │              用于会话中的所有消息加密                   │   │
-│  │              会话结束时销毁                            │   │
-│  └─────────────────────────────────────────────────────┘   │
-└─────────────────────────────────────────────────────────────┘
-```

docs/report/rustdesk/07-nat-traversal.md

@@ -1,410 +0,0 @@
-# NAT 穿透技术
-
-## 概述
-
-RustDesk 实现了多种 NAT 穿透技术，以在不同网络环境下建立 P2P 连接：
-
-- NAT 类型检测
-- UDP 打洞
-- TCP 打洞
-- Relay 中转（作为后备）
-
-## NAT 类型
-
-### 分类
-
-```protobuf
-enum NatType {
-  UNKNOWN_NAT = 0;   // 未知
-  ASYMMETRIC = 1;    // 非对称 NAT (Cone NAT) - 可打洞
-  SYMMETRIC = 2;     // 对称 NAT - 通常需要 Relay
-}
-```
-
-### NAT 类型说明
-
-| 类型 | 描述 | 可打洞 |
-|------|------|--------|
-| Full Cone | 外部端口固定，任何外部主机可访问 | ✅ 最容易 |
-| Restricted Cone | 外部端口固定，仅允许曾发送过数据的 IP | ✅ 容易 |
-| Port Restricted Cone | 外部端口固定，仅允许曾发送过数据的 IP:Port | ✅ 可能 |
-| Symmetric | 每个目标地址使用不同外部端口 | ❌ 困难 |
-
-## NAT 类型检测
-
-### 检测原理
-
-RustDesk 使用双端口检测法：
-
-1. 客户端向 Rendezvous Server 的主端口 (21116) 发送 TestNatRequest
-2. 同时向 NAT 测试端口 (21115) 发送 TestNatRequest
-3. 比较两次响应中观测到的源端口
-
-```
-客户端                    Rendezvous Server
-   │                           │
-   │   TestNatRequest ────────►│ Port 21116
-   │                           │
-   │   TestNatRequest ────────►│ Port 21115
-   │                           │
-   │◄──────── TestNatResponse  │ (包含观测到的源端口)
-   │                           │
-   │                           │
-   │ 比较两次源端口             │
-   │ 相同 → ASYMMETRIC         │
-   │ 不同 → SYMMETRIC           │
-```
-
-### 实现代码
-
-**客户端发送检测请求：**
-
-```rust
-// rustdesk/src/lib.rs
-pub fn test_nat_type() {
-    tokio::spawn(async move {
-        let rendezvous_server = Config::get_rendezvous_servers().first().cloned();
-        if let Some(host) = rendezvous_server {
-            // 连接主端口
-            let host = check_port(&host, RENDEZVOUS_PORT);
-
-            // 连接 NAT 测试端口
-            let host2 = crate::increase_port(&host, -1);
-
-            // 发送测试请求
-            let mut msg = RendezvousMessage::new();
-            msg.set_test_nat_request(TestNatRequest {
-                serial: Config::get_serial(),
-            });
-
-            // 收集两次响应的端口
-            let port1 = send_and_get_port(&host, &msg).await;
-            let port2 = send_and_get_port(&host2, &msg).await;
-
-            // 判断 NAT 类型
-            let nat_type = if port1 == port2 {
-                NatType::ASYMMETRIC  // 可打洞
-            } else {
-                NatType::SYMMETRIC   // 需要 Relay
-            };
-
-            Config::set_nat_type(nat_type as i32);
-        }
-    });
-}
-```
-
-**服务器响应：**
-
-```rust
-// rustdesk-server/src/rendezvous_server.rs:1080-1087
-Some(rendezvous_message::Union::TestNatRequest(_)) => {
-    let mut msg_out = RendezvousMessage::new();
-    msg_out.set_test_nat_response(TestNatResponse {
-        port: addr.port() as _,  // 返回观测到的源端口
-        ..Default::default()
-    });
-    stream.send(&msg_out).await.ok();
-}
-```
-
-## UDP 打洞
-
-### 原理
-
-UDP 打洞利用 NAT 的端口映射机制：
-
-```
-    A (内网)                                             B (内网)
-       │                                                    │
-       │ ──► NAT_A ──► Internet ──► NAT_B ──► (丢弃)        │
-       │                                                    │
-       │                                                    │
-       │ (NAT_A 创建了映射 A:port → A_ext:port_a)           │
-       │                                                    │
-       │                                                    │
-       │ (丢弃) ◄── NAT_A ◄── Internet ◄── NAT_B ◄── │
-       │                                                    │
-       │                                                    │
-       │ (NAT_B 创建了映射 B:port → B_ext:port_b)           │
-       │                                                    │
-       │ ──► NAT_A ──► Internet ──► NAT_B ──► │
-       │ (NAT_A 的映射存在，包被转发)                        │
-       │                                                    │
-       │ ◄── NAT_A ◄── Internet ◄── NAT_B ◄── │
-       │ (NAT_B 的映射存在，包被转发)                        │
-       │                                                    │
-       │ ◄───────── 双向通信建立 ──────────► │
-```
-
-### 实现
-
-**被控端打洞：**
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:621-642
-async fn punch_udp_hole(
-    &self,
-    peer_addr: SocketAddr,
-    server: ServerPtr,
-    msg_punch: PunchHoleSent,
-) -> ResultType<()> {
-    let mut msg_out = Message::new();
-    msg_out.set_punch_hole_sent(msg_punch);
-
-    // 创建 UDP socket
-    let (socket, addr) = new_direct_udp_for(&self.host).await?;
-    let data = msg_out.write_to_bytes()?;
-
-    // 发送到 Rendezvous Server（会转发给控制端）
-    socket.send_to(&data, addr).await?;
-
-    // 多次发送以增加成功率
-    let socket_cloned = socket.clone();
-    tokio::spawn(async move {
-        for _ in 0..2 {
-            let tm = (hbb_common::time_based_rand() % 20 + 10) as f32 / 1000.;
-            hbb_common::sleep(tm).await;
-            socket.send_to(&data, addr).await.ok();
-        }
-    });
-
-    // 等待对方连接
-    udp_nat_listen(socket_cloned, peer_addr, peer_addr, server).await?;
-    Ok(())
-}
-```
-
-**UDP 监听和 KCP 建立：**
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:824-851
-async fn udp_nat_listen(
-    socket: Arc<tokio::net::UdpSocket>,
-    peer_addr: SocketAddr,
-    peer_addr_v4: SocketAddr,
-    server: ServerPtr,
-) -> ResultType<()> {
-    // 连接到对方地址
-    socket.connect(peer_addr).await?;
-
-    // 执行 UDP 打洞
-    let res = crate::punch_udp(socket.clone(), true).await?;
-
-    // 建立 KCP 可靠传输层
-    let stream = crate::kcp_stream::KcpStream::accept(
-        socket,
-        Duration::from_millis(CONNECT_TIMEOUT as _),
-        res,
-    ).await?;
-
-    // 创建连接
-    crate::server::create_tcp_connection(server, stream.1, peer_addr_v4, true).await?;
-    Ok(())
-}
-```
-
-### KCP 协议
-
-RustDesk 在 UDP 上使用 KCP 提供可靠传输，KCP 特点：
-
-- 更激进的重传策略
-- 更低的延迟
-- 可配置的可靠性级别
-
-## TCP 打洞
-
-### 原理
-
-TCP 打洞比 UDP 困难，因为 TCP 需要三次握手。技巧是让双方同时发起连接：
-
-```
-    A                       NAT_A     NAT_B                       B
-    │                         │         │                         │
-    │ ─── SYN ───────────────►│─────────│────► (丢弃，无映射)     │
-    │                         │         │                         │
-    │ (NAT_A 创建到 B 的映射)  │         │                         │
-    │                         │         │                         │
-    │ (丢弃，无映射) ◄─────────│─────────│◄─── SYN ───────────── │
-    │                         │         │                         │
-    │                         │         │ (NAT_B 创建到 A 的映射)  │
-    │                         │         │                         │
-    │ ─── SYN ───────────────►│─────────│────► SYN ───────────► │
-    │                         │         │ (映射存在，转发成功)     │
-    │                         │         │                         │
-    │ ◄─── SYN+ACK ──────────│─────────│◄─── SYN+ACK ───────── │
-    │                         │         │                         │
-    │ ─── ACK ───────────────►│─────────│────► ACK ───────────► │
-    │                         │         │                         │
-    │ ◄─────────── 连接建立 ─────────────────────────────────────►│
-```
-
-### 实现
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:604-617
-log::debug!("Punch tcp hole to {:?}", peer_addr);
-let mut socket = {
-    // 1. 先连接 Rendezvous Server 获取本地地址
-    let socket = connect_tcp(&*self.host, CONNECT_TIMEOUT).await?;
-    let local_addr = socket.local_addr();
-
-    // 2. 用相同的本地地址尝试连接对方
-    // 这会在 NAT 上创建映射
-    // 虽然连接会失败，但映射已建立
-    allow_err!(socket_client::connect_tcp_local(peer_addr, Some(local_addr), 30).await);
-
-    socket
-};
-
-// 3. 发送 PunchHoleSent 通知服务器
-// 服务器会转发给控制端
-let mut msg_out = Message::new();
-msg_out.set_punch_hole_sent(msg_punch);
-socket.send_raw(msg_out.write_to_bytes()?).await?;
-
-// 4. 等待控制端连接
-// 由于已有映射，控制端的连接可以成功
-crate::accept_connection(server.clone(), socket, peer_addr, true).await;
-```
-
-## 局域网直连
-
-### 检测同一局域网
-
-```rust
-// rustdesk-server/src/rendezvous_server.rs:721-728
-let same_intranet: bool = !ws
-    && (peer_is_lan && is_lan || {
-        match (peer_addr, addr) {
-            (SocketAddr::V4(a), SocketAddr::V4(b)) => a.ip() == b.ip(),
-            (SocketAddr::V6(a), SocketAddr::V6(b)) => a.ip() == b.ip(),
-            _ => false,
-        }
-    });
-```
-
-### 局域网连接流程
-
-```
-控制端              Rendezvous Server              被控端
-   │                       │                          │
-   │ PunchHoleRequest ────►│                          │
-   │                       │                          │
-   │                       │ (检测到同一局域网)         │
-   │                       │                          │
-   │                       │    FetchLocalAddr ──────►│
-   │                       │                          │
-   │                       │◄────── LocalAddr ────────│
-   │                       │   (包含被控端内网地址)     │
-   │                       │                          │
-   │◄─ PunchHoleResponse ──│                          │
-   │  (is_local=true)      │                          │
-   │  (socket_addr=内网地址)│                          │
-   │                       │                          │
-   │ ─────────── 直接连接内网地址 ────────────────────►│
-```
-
-## IPv6 支持
-
-IPv6 通常不需要 NAT 穿透，但 RustDesk 仍支持 IPv6 打洞以处理有状态防火墙：
-
-```rust
-// rustdesk/src/rendezvous_mediator.rs:808-822
-async fn start_ipv6(
-    peer_addr_v6: SocketAddr,
-    peer_addr_v4: SocketAddr,
-    server: ServerPtr,
-) -> bytes::Bytes {
-    crate::test_ipv6().await;
-    if let Some((socket, local_addr_v6)) = crate::get_ipv6_socket().await {
-        let server = server.clone();
-        tokio::spawn(async move {
-            allow_err!(udp_nat_listen(socket.clone(), peer_addr_v6, peer_addr_v4, server).await);
-        });
-        return local_addr_v6;
-    }
-    Default::default()
-}
-```
-
-## 连接策略决策树
-
-```
-                         开始连接
-                            │
-                            ▼
-                   ┌───────────────┐
-                   │  NAT 类型检测  │
-                   └───────┬───────┘
-                           │
-           ┌───────────────┼───────────────┐
-           │               │               │
-           ▼               ▼               ▼
-      ASYMMETRIC       UNKNOWN        SYMMETRIC
-           │               │               │
-           ▼               ▼               │
-     ┌──────────┐    ┌──────────┐         │
-     │ 尝试 UDP  │    │ 尝试 TCP  │         │
-     │ 打洞     │    │ 打洞     │         │
-     └────┬─────┘    └────┬─────┘         │
-          │               │               │
-     成功  │  失败    成功  │  失败         │
-          ▼    │          ▼    │          │
-     ┌────────┐│     ┌────────┐│          │
-     │UDP P2P ││     │TCP P2P ││          │
-     └────────┘│     └────────┘│          │
-               │               │          │
-               └───────┬───────┘          │
-                       │                  │
-                       ▼                  │
-               ┌───────────────┐          │
-               │   使用 Relay   │◄─────────┘
-               └───────────────┘
-```
-
-## 性能优化
-
-### 多路径尝试
-
-RustDesk 同时尝试多种连接方式，选择最快成功的：
-
-```rust
-// rustdesk/src/client.rs:342-364
-let mut connect_futures = Vec::new();
-
-// 同时尝试 UDP 和 TCP
-if udp.0.is_some() {
-    connect_futures.push(Self::_start_inner(..., udp).boxed());
-}
-connect_futures.push(Self::_start_inner(..., (None, None)).boxed());
-
-// 使用 select_ok 选择第一个成功的
-match select_ok(connect_futures).await {
-    Ok(conn) => Ok(conn),
-    Err(e) => Err(e),
-}
-```
-
-### 超时控制
-
-```rust
-const CONNECT_TIMEOUT: u64 = 18_000;  // 18 秒
-const REG_TIMEOUT: i32 = 30_000;      // 30 秒
-
-// 连接超时处理
-if let Ok(Ok((stream, addr))) = timeout(CONNECT_TIMEOUT, socket.accept()).await {
-    // 连接成功
-} else {
-    // 超时，尝试其他方式
-}
-```
-
-## 常见问题和解决方案
-
-| 问题 | 原因 | 解决方案 |
-|------|------|----------|
-| 双 Symmetric NAT | 两端都是对称 NAT | 使用 Relay |
-| 防火墙阻止 UDP | 企业防火墙 | 使用 TCP 或 WebSocket |
-| 端口预测失败 | NAT 端口分配不规律 | 多次尝试或使用 Relay |
-| IPv6 不通 | ISP 或防火墙问题 | 回退到 IPv4 |

docs/report/rustdesk/08-onekvm-comparison.md

@@ -1,401 +0,0 @@
-# RustDesk 协议 vs One-KVM 实现对比分析
-
-本文档对比分析 RustDesk 原始协议与 One-KVM 的实现差异。
-
-## 1. 概述
-
-One-KVM 作为 IP-KVM 解决方案，只实现了 RustDesk 协议的**被控端（Controlled）** 功能，不实现控制端（Controller）功能。这是设计决策，因为 KVM 设备只需要接收远程控制，不需要控制其他设备。
-
-### 架构差异
-
-| 方面 | RustDesk 原版 | One-KVM |
-|------|---------------|---------|
-| 角色 | 双向（控制端+被控端） | 单向（仅被控端） |
-| 连接方式 | P2P + Relay | 仅 Relay (TCP) |
-| NAT 穿透 | UDP/TCP 打洞 + TURN | 不支持 |
-| 传输协议 | UDP/TCP | 仅 TCP |
-
-## 2. 已实现功能
-
-### 2.1 Rendezvous 协议 (hbbs 通信)
-
-| 消息类型 | 实现状态 | 备注 |
-|----------|----------|------|
-| RegisterPeer | ✅ 已实现 | 注册设备到服务器 |
-| RegisterPeerResponse | ✅ 已实现 | 处理注册响应 |
-| RegisterPk | ✅ 已实现 | 注册公钥 |
-| RegisterPkResponse | ✅ 已实现 | 处理公钥注册响应 |
-| PunchHoleSent | ✅ 已实现 | 响应打洞请求 |
-| FetchLocalAddr | ✅ 已实现 | 获取本地地址 |
-| LocalAddr | ✅ 已实现 | 返回本地地址 |
-| RequestRelay | ✅ 已实现 | 请求中继连接 |
-| RelayResponse | ✅ 已实现 | 处理中继响应 |
-| ConfigUpdate | ✅ 已实现 | 接收配置更新 |
-
-**实现文件**: `src/rustdesk/rendezvous.rs` (~829 行)
-
-```rust
-// 核心结构
-pub struct RendezvousMediator {
-    config: RustDeskConfig,
-    key_pair: KeyPair,
-    signing_key: SigningKeyPair,
-    socket: UdpSocket,
-    status: Arc<RwLock<RendezvousStatus>>,
-    // ...
-}
-```
-
-### 2.2 连接协议 (客户端连接)
-
-| 消息类型 | 实现状态 | 备注 |
-|----------|----------|------|
-| SignedId | ✅ 已实现 | 签名身份验证 |
-| PublicKey | ✅ 已实现 | 公钥交换 |
-| Hash | ✅ 已实现 | 哈希挑战响应 |
-| LoginRequest | ✅ 已实现 | 登录认证 |
-| LoginResponse | ✅ 已实现 | 登录响应 |
-| TestDelay | ✅ 已实现 | 延迟测试 |
-| VideoFrame | ✅ 已实现 | 视频帧发送 |
-| AudioFrame | ✅ 已实现 | 音频帧发送 |
-| CursorData | ✅ 已实现 | 光标图像 |
-| CursorPosition | ✅ 已实现 | 光标位置 |
-| MouseEvent | ✅ 已实现 | 鼠标事件接收 |
-| KeyEvent | ✅ 已实现 | 键盘事件接收 |
-
-**实现文件**: `src/rustdesk/connection.rs` (~1349 行)
-
-```rust
-// 连接状态机
-pub enum ConnectionState {
-    WaitingForSignedId,
-    WaitingForPublicKey,
-    WaitingForHash,
-    WaitingForLogin,
-    Authenticated,
-    Streaming,
-}
-```
-
-### 2.3 加密模块
-
-| 功能 | 实现状态 | 备注 |
-|------|----------|------|
-| Curve25519 密钥对 | ✅ 已实现 | 用于加密 |
-| Ed25519 签名密钥对 | ✅ 已实现 | 用于签名 |
-| Ed25519 → Curve25519 转换 | ✅ 已实现 | 密钥派生 |
-| XSalsa20-Poly1305 | ✅ 已实现 | 会话加密 (secretbox) |
-| 密码哈希 | ✅ 已实现 | 单重/双重 SHA256 |
-| 会话密钥协商 | ✅ 已实现 | 对称密钥派生 |
-
-**实现文件**: `src/rustdesk/crypto.rs` (~468 行)
-
-```rust
-// 密钥对结构
-pub struct KeyPair {
-    secret_key: [u8; 32],  // Curve25519 私钥
-    public_key: [u8; 32],  // Curve25519 公钥
-}
-
-pub struct SigningKeyPair {
-    secret_key: [u8; 64],  // Ed25519 私钥
-    public_key: [u8; 32],  // Ed25519 公钥
-}
-```
-
-### 2.4 视频/音频流
-
-| 编码格式 | 实现状态 | 备注 |
-|----------|----------|------|
-| H.264 | ✅ 已实现 | 主要格式 |
-| H.265/HEVC | ✅ 已实现 | 高效编码 |
-| VP8 | ✅ 已实现 | WebRTC 兼容 |
-| VP9 | ✅ 已实现 | 高质量 |
-| AV1 | ✅ 已实现 | 新一代编码 |
-| Opus 音频 | ✅ 已实现 | 低延迟音频 |
-
-**实现文件**: `src/rustdesk/frame_adapters.rs` (~316 行)
-
-### 2.5 HID 事件
-
-| 功能 | 实现状态 | 备注 |
-|------|----------|------|
-| 鼠标移动 | ✅ 已实现 | 绝对/相对坐标 |
-| 鼠标按键 | ✅ 已实现 | 左/中/右键 |
-| 鼠标滚轮 | ✅ 已实现 | 垂直滚动 |
-| 键盘按键 | ✅ 已实现 | 按下/释放 |
-| 控制键映射 | ✅ 已实现 | ControlKey → USB HID |
-| X11 键码映射 | ✅ 已实现 | X11 → USB HID |
-
-**实现文件**: `src/rustdesk/hid_adapter.rs` (~386 行)
-
-### 2.6 协议帧编码
-
-| 功能 | 实现状态 | 备注 |
-|------|----------|------|
-| BytesCodec | ✅ 已实现 | 变长帧编码 |
-| 1-4 字节头 | ✅ 已实现 | 根据长度自动选择 |
-| 最大 1GB 消息 | ✅ 已实现 | 与原版一致 |
-
-**实现文件**: `src/rustdesk/bytes_codec.rs` (~253 行)
-
-## 3. 未实现功能
-
-### 3.1 NAT 穿透相关
-
-| 功能 | 原因 |
-|------|------|
-| UDP 打洞 | One-KVM 仅使用 TCP 中继 |
-| TCP 打洞 | 同上 |
-| STUN/TURN | 不需要 NAT 类型检测 |
-| TestNat | 同上 |
-| P2P 直连 | 设计简化，仅支持中继 |
-
-### 3.2 客户端发起功能
-
-| 功能 | 原因 |
-|------|------|
-| PunchHole (发起) | KVM 只接收连接 |
-| RelayRequest | 同上 |
-| ConnectPeer | 同上 |
-| OnlineRequest | 不需要查询其他设备 |
-
-### 3.3 文件传输
-
-| 功能 | 原因 |
-|------|------|
-| FileTransfer | 超出 KVM 功能范围 |
-| FileAction | 同上 |
-| FileResponse | 同上 |
-| FileTransferBlock | 同上 |
-
-### 3.4 高级功能
-
-| 功能 | 原因 |
-|------|------|
-| 剪贴板同步 | 超出 KVM 功能范围 |
-| 多显示器切换 | One-KVM 使用单一视频源 |
-| 虚拟显示器 | 不适用 |
-| 端口转发 | 超出 KVM 功能范围 |
-| 语音通话 | 不需要 |
-| RDP 输入 | 不需要 |
-| 插件系统 | 不支持 |
-| 软件更新 | One-KVM 有自己的更新机制 |
-
-### 3.5 权限协商
-
-| 功能 | 原因 |
-|------|------|
-| Option 消息 | One-KVM 假设完全控制权限 |
-| 权限请求 | 同上 |
-| PermissionInfo | 同上 |
-
-## 4. 实现差异
-
-### 4.1 连接模式
-
-**RustDesk 原版:**
-```
-客户端 ──UDP打洞──> 被控端 (P2P 优先)
-       └──Relay──> 被控端 (回退)
-```
-
-**One-KVM:**
-```
-RustDesk客户端 ──TCP中继──> hbbr服务器 ──> One-KVM设备
-```
-
-One-KVM 只支持 TCP 中继连接，不支持 P2P 直连。这简化了实现，但可能增加延迟。
-
-### 4.2 会话加密
-
-**RustDesk 原版:**
-- 支持 ChaCha20-Poly1305 (流式)
-- 支持 XSalsa20-Poly1305 (secretbox)
-- 动态协商加密方式
-
-**One-KVM:**
-- 仅支持 XSalsa20-Poly1305 (secretbox)
-- 使用序列号作为 nonce
-
-```rust
-// One-KVM 的加密实现
-fn encrypt_message(&mut self, plaintext: &[u8]) -> Vec<u8> {
-    let nonce = make_nonce(&self.send_nonce);
-    self.send_nonce = self.send_nonce.wrapping_add(1);
-    secretbox::seal(plaintext, &nonce, &self.session_key)
-}
-```
-
-### 4.3 视频流方向
-
-**RustDesk 原版:**
-- 双向视频流（可控制和被控制）
-- 远程桌面捕获
-
-**One-KVM:**
-- 单向视频流（仅发送）
-- 从 V4L2 设备捕获
-- 集成到 One-KVM 的 VideoStreamManager
-
-```rust
-// One-KVM 视频流集成
-pub async fn start_video_stream(&self, state: &AppState) {
-    let stream_manager = &state.video_stream_manager;
-    // 从 One-KVM 的视频管理器获取帧
-}
-```
-
-### 4.4 HID 事件处理
-
-**RustDesk 原版:**
-- 转发到远程系统的输入子系统
-- 使用 enigo 或 uinput
-
-**One-KVM:**
-- 转发到 USB OTG/HID 设备
-- 控制物理 KVM 目标机器
-
-```rust
-// One-KVM HID 适配
-pub fn convert_mouse_event(event: &RustDeskMouseEvent) -> Option<OneKvmMouseEvent> {
-    // 转换 RustDesk 鼠标事件到 One-KVM HID 事件
-}
-
-pub fn convert_key_event(event: &RustDeskKeyEvent) -> Option<OneKvmKeyEvent> {
-    // 转换 RustDesk 键盘事件到 One-KVM HID 事件
-}
-```
-
-### 4.5 配置管理
-
-**RustDesk 原版:**
-- 使用 TOML/JSON 配置文件
-- 硬编码默认值
-
-**One-KVM:**
-- 集成到 SQLite 配置系统
-- Web UI 管理
-- 使用 typeshare 生成 TypeScript 类型
-
-```rust
-#[typeshare]
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct RustDeskConfig {
-    pub enabled: bool,
-    pub rendezvous_server: String,
-    pub device_id: String,
-    // ...
-}
-```
-
-### 4.6 设备 ID 生成
-
-**RustDesk 原版:**
-- 基于 MAC 地址和硬件信息
-- 固定便携式 ID
-
-**One-KVM:**
-- 随机生成 9 位数字
-- 存储在配置中
-
-```rust
-pub fn generate_device_id() -> String {
-    let mut rng = rand::thread_rng();
-    let id: u32 = rng.gen_range(100_000_000..999_999_999);
-    id.to_string()
-}
-```
-
-## 5. 协议兼容性
-
-### 5.1 完全兼容
-
-| 功能 | 说明 |
-|------|------|
-| Rendezvous 注册 | 可与官方 hbbs 服务器通信 |
-| 中继连接 | 可通过官方 hbbr 服务器中继 |
-| 加密握手 | 与 RustDesk 客户端兼容 |
-| 视频编码 | 支持所有主流编码格式 |
-| HID 事件 | 接收标准 RustDesk 输入事件 |
-
-### 5.2 部分兼容
-
-| 功能 | 说明 |
-|------|------|
-| 密码认证 | 仅支持设备密码，不支持一次性密码 |
-| 会话加密 | 仅 XSalsa20-Poly1305 |
-
-### 5.3 不兼容
-
-| 功能 | 说明 |
-|------|------|
-| P2P 连接 | 客户端必须通过中继连接 |
-| 文件传输 | 不支持 |
-| 剪贴板 | 不支持 |
-
-## 6. 代码结构对比
-
-### RustDesk 原版结构
-
-```
-rustdesk/
-├── libs/hbb_common/     # 公共库
-│   ├── protos/          # Protobuf 定义
-│   └── src/
-├── src/
-│   ├── server/          # 被控端服务
-│   ├── client/          # 控制端
-│   ├── ui/              # 用户界面
-│   └── rendezvous_mediator.rs
-```
-
-### One-KVM 结构
-
-```
-src/rustdesk/
-├── mod.rs               # 模块导出
-├── config.rs            # 配置类型 (~164 行)
-├── crypto.rs            # 加密模块 (~468 行)
-├── bytes_codec.rs       # 帧编码 (~253 行)
-├── protocol.rs          # 消息辅助 (~170 行)
-├── rendezvous.rs        # Rendezvous 中介 (~829 行)
-├── connection.rs        # 连接处理 (~1349 行)
-├── hid_adapter.rs       # HID 转换 (~386 行)
-└── frame_adapters.rs    # 视频/音频适配 (~316 行)
-```
-
-**总计**: ~3935 行代码
-
-## 7. 总结
-
-### 实现率统计
-
-| 类别 | RustDesk 功能数 | One-KVM 实现数 | 实现率 |
-|------|-----------------|----------------|--------|
-| Rendezvous 协议 | 15+ | 10 | ~67% |
-| 连接协议 | 30+ | 12 | ~40% |
-| 加密功能 | 8 | 6 | 75% |
-| 视频/音频 | 6 | 6 | 100% |
-| HID 功能 | 6 | 6 | 100% |
-
-### 设计理念
-
-One-KVM 的 RustDesk 实现专注于 **IP-KVM 核心功能**:
-
-1. **精简**: 只实现必要的被控端功能
-2. **可靠**: 使用 TCP 中继保证连接稳定性
-3. **集成**: 与 One-KVM 现有视频/HID 系统无缝集成
-4. **安全**: 完整实现加密和认证机制
-
-### 客户端兼容性
-
-One-KVM 可与标准 RustDesk 客户端配合使用:
-- RustDesk 桌面客户端 (Windows/macOS/Linux)
-- RustDesk 移动客户端 (Android/iOS)
-- RustDesk Web 客户端
-
-只需确保:
-1. 配置相同的 Rendezvous 服务器
-2. 使用设备 ID 和密码连接
-3. 客户端支持中继连接

docs/system-architecture.md

@@ -1,920 +0,0 @@
-# One-KVM 系统架构文档
-
-## 1. 项目概述
-
-One-KVM 是一个用 Rust 编写的轻量级、开源 IP-KVM 解决方案。它提供 BIOS 级别的远程服务器管理能力，支持视频流、键鼠控制、虚拟存储、电源管理和音频等功能。
-
-### 1.1 核心特性
-
-- **单一二进制部署**：Web UI + 后端一体化，无需额外配置文件
-- **双流模式**：支持 WebRTC（H264/H265/VP8/VP9）和 MJPEG 两种流模式
-- **USB OTG**：虚拟键鼠、虚拟存储、虚拟网卡
-- **ATX 电源控制**：GPIO/USB 继电器
-- **RustDesk 协议集成**：支持跨平台访问
-- **Vue3 SPA 前端**：支持中文/英文
-- **SQLite 配置存储**：无需配置文件
-
-### 1.2 目标平台
-
-| 平台 | 架构 | 用途 |
-|------|------|------|
-| aarch64-unknown-linux-gnu | ARM64 | 主要目标（Rockchip RK3328 等） |
-| armv7-unknown-linux-gnueabihf | ARMv7 | 备选平台 |
-| x86_64-unknown-linux-gnu | x86-64 | 开发/测试环境 |
-
----
-
-## 2. 系统架构图
-
-### 2.1 整体架构
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                              One-KVM System                                  │
-├─────────────────────────────────────────────────────────────────────────────┤
-│                                                                              │
-│  ┌─────────────────────────────────────────────────────────────────────┐   │
-│  │                        Web Frontend (Vue3)                           │   │
-│  │  ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐  │   │
-│  │  │ Console  │ │ Settings │ │  Login   │ │  Setup   │ │ Virtual  │  │   │
-│  │  │   View   │ │   View   │ │   View   │ │   View   │ │ Keyboard │  │   │
-│  │  └──────────┘ └──────────┘ └──────────┘ └──────────┘ └──────────┘  │   │
-│  │                                │                                     │   │
-│  │              ┌─────────────────┴─────────────────┐                  │   │
-│  │              │        Pinia State Store          │                  │   │
-│  │              └─────────────────┬─────────────────┘                  │   │
-│  │                                │                                     │   │
-│  │  ┌──────────────────────────────────────────────────────────────┐  │   │
-│  │  │                      API Client Layer                         │  │   │
-│  │  │  HTTP REST  │  WebSocket  │  WebRTC Signaling  │  MJPEG      │  │   │
-│  │  └──────────────────────────────────────────────────────────────┘  │   │
-│  └─────────────────────────────────────────────────────────────────────┘   │
-│                                    │                                        │
-│                                    │ HTTP/WS/WebRTC                         │
-│                                    ▼                                        │
-│  ┌─────────────────────────────────────────────────────────────────────┐   │
-│  │                     Axum Web Server (routes.rs)                      │   │
-│  │  ┌───────────┐ ┌───────────┐ ┌───────────┐ ┌───────────┐           │   │
-│  │  │  Public   │ │   User    │ │   Admin   │ │  Static   │           │   │
-│  │  │  Routes   │ │  Routes   │ │  Routes   │ │  Files    │           │   │
-│  │  └───────────┘ └───────────┘ └───────────┘ └───────────┘           │   │
-│  └─────────────────────────────────────────────────────────────────────┘   │
-│                                    │                                        │
-│                                    ▼                                        │
-│  ┌─────────────────────────────────────────────────────────────────────┐   │
-│  │                       AppState (state.rs)                            │   │
-│  │  ┌─────────────────────────────────────────────────────────────┐    │   │
-│  │  │                    Central State Hub                         │    │   │
-│  │  │  ┌────────────┐ ┌────────────┐ ┌────────────┐              │    │   │
-│  │  │  │ConfigStore │ │SessionStore│ │ UserStore  │              │    │   │
-│  │  │  │  (SQLite)  │ │  (Memory)  │ │  (SQLite)  │              │    │   │
-│  │  │  └────────────┘ └────────────┘ └────────────┘              │    │   │
-│  │  │                                                              │    │   │
-│  │  │  ┌────────────┐ ┌────────────┐ ┌────────────┐              │    │   │
-│  │  │  │  EventBus  │ │ OtgService │ │ Extensions │              │    │   │
-│  │  │  │ (Broadcast)│ │   (USB)    │ │  Manager   │              │    │   │
-│  │  │  └────────────┘ └────────────┘ └────────────┘              │    │   │
-│  │  └─────────────────────────────────────────────────────────────┘    │   │
-│  └─────────────────────────────────────────────────────────────────────┘   │
-│                                    │                                        │
-│      ┌─────────────────────────────┼─────────────────────────────┐         │
-│      │                             │                             │         │
-│      ▼                             ▼                             ▼         │
-│  ┌────────────┐             ┌────────────┐             ┌────────────┐      │
-│  │   Video    │             │    HID     │             │   Audio    │      │
-│  │  Module    │             │  Module    │             │  Module    │      │
-│  ├────────────┤             ├────────────┤             ├────────────┤      │
-│  │ Capture    │             │ Controller │             │ Capture    │      │
-│  │ Encoder    │             │ OTG Backend│             │ Encoder    │      │
-│  │ Streamer   │             │ CH9329     │             │ Pipeline   │      │
-│  │ Pipeline   │             │ Monitor    │             │ (Opus)     │      │
-│  │ Manager    │             │ DataChan   │             │ Shared     │      │
-│  └────────────┘             └────────────┘             └────────────┘      │
-│        │                           │                          │            │
-│        └───────────────────────────┼──────────────────────────┘            │
-│                                    │                                        │
-│      ┌─────────────────────────────┼─────────────────────────────┐         │
-│      │                             │                             │         │
-│      ▼                             ▼                             ▼         │
-│  ┌────────────┐             ┌────────────┐             ┌────────────┐      │
-│  │    MSD     │             │    ATX     │             │  RustDesk  │      │
-│  │  Module    │             │  Module    │             │  Module    │      │
-│  ├────────────┤             ├────────────┤             ├────────────┤      │
-│  │ Controller │             │ Controller │             │  Service   │      │
-│  │ Image Mgr  │             │ Executor   │             │ Rendezvous │      │
-│  │ Ventoy     │             │ LED Monitor│             │ Connection │      │
-│  │ Drive      │             │ WOL        │             │ Protocol   │      │
-│  └────────────┘             └────────────┘             └────────────┘      │
-│                                                                             │
-└─────────────────────────────────────────────────────────────────────────────┘
-                                    │
-                                    ▼
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                            Hardware Layer                                    │
-├─────────────────────────────────────────────────────────────────────────────┤
-│  ┌────────────┐  ┌────────────┐  ┌────────────┐  ┌────────────┐            │
-│  │ V4L2 Video │  │  USB OTG   │  │   GPIO     │  │   ALSA     │            │
-│  │   Device   │  │  Gadget    │  │  Sysfs     │  │   Audio    │            │
-│  │/dev/video* │  │ ConfigFS   │  │            │  │            │            │
-│  └────────────┘  └────────────┘  └────────────┘  └────────────┘            │
-└─────────────────────────────────────────────────────────────────────────────┘
-```
-
-### 2.2 数据流架构
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                              Data Flow Overview                              │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-                        ┌─────────────────┐
-                        │   Target PC     │
-                        └────────┬────────┘
-                                 │
-        ┌────────────────────────┼────────────────────────┐
-        │                        │                        │
-        ▼                        ▼                        ▼
-┌───────────────┐      ┌───────────────┐      ┌───────────────┐
-│  HDMI Capture │      │   USB Port    │      │   GPIO/Relay  │
-│    Card       │      │  (OTG Mode)   │      │   (ATX)       │
-└───────┬───────┘      └───────┬───────┘      └───────┬───────┘
-        │                      │                      │
-        ▼                      ▼                      ▼
-┌───────────────┐      ┌───────────────┐      ┌───────────────┐
-│  /dev/video0  │      │  /dev/hidg*   │      │  /sys/class/  │
-│  (V4L2)       │      │  (USB Gadget) │      │  gpio/gpio*   │
-└───────┬───────┘      └───────┬───────┘      └───────┬───────┘
-        │                      │                      │
-        ▼                      ▼                      ▼
-┌─────────────────────────────────────────────────────────────┐
-│                    One-KVM Application                       │
-│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐         │
-│  │   Video     │  │    HID      │  │    ATX      │         │
-│  │  Pipeline   │  │ Controller  │  │ Controller  │         │
-│  └─────┬───────┘  └─────┬───────┘  └─────┬───────┘         │
-│        │                │                │                  │
-│        ▼                ▼                ▼                  │
-│  ┌───────────────────────────────────────────────────────┐ │
-│  │                   Event Bus                            │ │
-│  │              (tokio broadcast channel)                 │ │
-│  └───────────────────────────────────────────────────────┘ │
-│        │                │                │                  │
-│        ▼                ▼                ▼                  │
-│  ┌─────────────────────────────────────────────────────┐   │
-│  │                 Web Server (Axum)                    │   │
-│  │  ┌──────────┐ ┌──────────┐ ┌──────────┐            │   │
-│  │  │  MJPEG   │ │  WebRTC  │ │WebSocket │            │   │
-│  │  │  Stream  │ │  Stream  │ │  Events  │            │   │
-│  │  └──────────┘ └──────────┘ └──────────┘            │   │
-│  └─────────────────────────────────────────────────────┘   │
-└─────────────────────────────────────────────────────────────┘
-        │                      │                      │
-        ▼                      ▼                      ▼
-┌─────────────────────────────────────────────────────────────┐
-│                    Client Browser                            │
-│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐         │
-│  │   Video     │  │    Input    │  │   Control   │         │
-│  │  Display    │  │  Events     │  │   Panel     │         │
-│  └─────────────┘  └─────────────┘  └─────────────┘         │
-└─────────────────────────────────────────────────────────────┘
-```
-
----
-
-## 3. 模块依赖关系
-
-### 3.1 模块层次图
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                            Application Layer                                 │
-├─────────────────────────────────────────────────────────────────────────────┤
-│  main.rs ──► state.rs ──► web/routes.rs                                     │
-│                 │                                                            │
-│     ┌───────────┼───────────┬───────────┬───────────┬───────────┐          │
-│     │           │           │           │           │           │          │
-│     ▼           ▼           ▼           ▼           ▼           ▼          │
-│  ┌──────┐  ┌──────┐   ┌──────┐   ┌──────┐   ┌──────┐   ┌──────┐          │
-│  │video/│  │ hid/ │   │ msd/ │   │ atx/ │   │audio/│   │webrtc│          │
-│  └──┬───┘  └──┬───┘   └──┬───┘   └──┬───┘   └──┬───┘   └──┬───┘          │
-│     │         │          │          │          │          │               │
-│     │         └──────────┼──────────┘          │          │               │
-│     │                    │                     │          │               │
-│     │              ┌─────▼─────┐               │          │               │
-│     │              │   otg/    │               │          │               │
-│     │              │ (OtgSvc)  │               │          │               │
-│     │              └───────────┘               │          │               │
-│     │                                          │          │               │
-│     └──────────────────────────────────────────┼──────────┘               │
-│                                                │                          │
-├─────────────────────────────────────────────────────────────────────────────┤
-│                           Infrastructure Layer                               │
-├─────────────────────────────────────────────────────────────────────────────┤
-│  ┌──────────┐  ┌──────────┐  ┌──────────┐  ┌──────────┐                    │
-│  │ config/  │  │  auth/   │  │ events/  │  │extensions│                    │
-│  │(ConfigSt)│  │(Session) │  │(EventBus)│  │(ExtMgr)  │                    │
-│  └──────────┘  └──────────┘  └──────────┘  └──────────┘                    │
-│                                                                              │
-│  ┌───────────────────────────────────────────────────────────┐             │
-│  │                    rustdesk/ (RustDeskService)             │             │
-│  │  connection.rs │ rendezvous.rs │ crypto.rs │ protocol.rs   │             │
-│  └───────────────────────────────────────────────────────────┘             │
-└─────────────────────────────────────────────────────────────────────────────┘
-```
-
-### 3.2 依赖矩阵
-
-| 模块 | 依赖的模块 |
-|------|-----------|
-| `main.rs` | state, config, auth, video, hid, msd, atx, audio, webrtc, web, rustdesk, events |
-| `state.rs` | config, auth, video, hid, msd, atx, audio, webrtc, rustdesk, events, otg |
-| `video/` | events, hwcodec (外部) |
-| `hid/` | otg, events |
-| `msd/` | otg, events |
-| `atx/` | events |
-| `audio/` | events |
-| `webrtc/` | video, audio, hid, events |
-| `web/` | state, auth, config, video, hid, msd, atx, audio, webrtc, events |
-| `rustdesk/` | video, audio, hid, events |
-| `otg/` | (无内部依赖) |
-| `config/` | (无内部依赖) |
-| `auth/` | config |
-| `events/` | (无内部依赖) |
-
----
-
-## 4. 核心组件详解
-
-### 4.1 AppState (state.rs)
-
-AppState 是整个应用的状态中枢，通过 `Arc` 包装的方式在所有 handler 之间共享。
-
-```rust
-pub struct AppState {
-    // 配置和存储
-    config: ConfigStore,              // SQLite 配置存储
-    sessions: SessionStore,           // 会话存储（内存）
-    users: UserStore,                 // SQLite 用户存储
-
-    // 核心服务
-    otg_service: Arc<OtgService>,     // USB Gadget 统一管理（HID/MSD 生命周期协调者）
-    stream_manager: Arc<VideoStreamManager>,  // 视频流管理器（MJPEG/WebRTC）
-    hid: Arc<HidController>,          // HID 控制器（键鼠控制）
-    msd: Arc<RwLock<Option<MsdController>>>,  // MSD 控制器（可选，虚拟U盘）
-    atx: Arc<RwLock<Option<AtxController>>>,  // ATX 控制器（可选，电源控制）
-    audio: Arc<AudioController>,      // 音频控制器（ALSA + Opus）
-    rustdesk: Arc<RwLock<Option<Arc<RustDeskService>>>>,  // RustDesk（可选，远程访问）
-    extensions: Arc<ExtensionManager>,// 扩展管理器（ttyd, gostc, easytier）
-
-    // 通信和生命周期
-    events: Arc<EventBus>,            // 事件总线（tokio broadcast channel）
-    shutdown_tx: broadcast::Sender<()>,  // 关闭信号
-    data_dir: PathBuf,                // 数据目录
-}
-```
-
-### 4.2 视频流管道
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                         Video Pipeline Architecture                          │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-┌───────────────────┐
-│  V4L2 Device      │
-│  /dev/video0      │
-└─────────┬─────────┘
-          │ Raw MJPEG/YUYV/NV12
-          ▼
-┌───────────────────┐
-│  VideoCapturer    │  ◄─── src/video/capture.rs
-│  (capture.rs)     │
-└─────────┬─────────┘
-          │ VideoFrame
-          ▼
-┌───────────────────────────────────────────────────────────────────────────┐
-│                        SharedVideoPipeline                                 │
-│  ┌─────────────────────────────────────────────────────────────────────┐  │
-│  │                          Decode Stage                                │  │
-│  │  ┌─────────────┐                                                    │  │
-│  │  │ MJPEG → YUV │  turbojpeg / VAAPI                                 │  │
-│  │  └─────────────┘                                                    │  │
-│  └─────────────────────────────────────────────────────────────────────┘  │
-│                              │                                             │
-│                              ▼                                             │
-│  ┌─────────────────────────────────────────────────────────────────────┐  │
-│  │                         Convert Stage                                │  │
-│  │  ┌─────────────┐                                                    │  │
-│  │  │YUV → Target │  libyuv (SIMD accelerated)                         │  │
-│  │  │   Format    │                                                    │  │
-│  │  └─────────────┘                                                    │  │
-│  └─────────────────────────────────────────────────────────────────────┘  │
-│                              │                                             │
-│                              ▼                                             │
-│  ┌─────────────────────────────────────────────────────────────────────┐  │
-│  │                         Encode Stage                                 │  │
-│  │  ┌────────┐ ┌────────┐ ┌────────┐ ┌────────┐                       │  │
-│  │  │  H264  │ │  H265  │ │  VP8   │ │  VP9   │                       │  │
-│  │  │Encoder │ │Encoder │ │Encoder │ │Encoder │                       │  │
-│  │  └────────┘ └────────┘ └────────┘ └────────┘                       │  │
-│  │      │ (VAAPI/RKMPP/V4L2 M2M/Software)                              │  │
-│  └─────────────────────────────────────────────────────────────────────┘  │
-└───────────────────────────────────────────────────────────────────────────┘
-          │
-          ├──────────────────────────────┬──────────────────────────────┐
-          │                              │                              │
-          ▼                              ▼                              ▼
-┌───────────────────┐          ┌───────────────────┐          ┌───────────────────┐
-│  MJPEG Streamer   │          │  WebRTC Streamer  │          │ RustDesk Service  │
-│  (HTTP Stream)    │          │  (RTP Packets)    │          │  (P2P Stream)     │
-│                   │          │                   │          │                   │
-│  - HTTP/1.1       │          │  - DataChannel    │          │  - TCP/UDP Relay  │
-│  - multipart/x-   │          │  - SRTP           │          │  - NaCl Encrypted │
-│    mixed-replace  │          │  - ICE/STUN/TURN  │          │  - Rendezvous     │
-└───────────────────┘          └───────────────────┘          └───────────────────┘
-        │                              │                              │
-        ▼                              ▼                              ▼
-┌───────────────────────────────────────────────────────────────────────────┐
-│                              Clients                                       │
-│  ┌─────────────┐        ┌─────────────┐        ┌─────────────────────┐   │
-│  │   Browser   │        │   Browser   │        │   RustDesk Client   │   │
-│  │   (MJPEG)   │        │  (WebRTC)   │        │  (Desktop/Mobile)   │   │
-│  └─────────────┘        └─────────────┘        └─────────────────────┘   │
-└───────────────────────────────────────────────────────────────────────────┘
-```
-
-### 4.3 OTG 服务架构
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                           OTG Service Architecture                           │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                            OtgService (service.rs)                           │
-│  ┌─────────────────────────────────────────────────────────────────────┐   │
-│  │                      Public Interface                                │   │
-│  │  enable_hid()  │  disable_hid()  │  enable_msd()  │  disable_msd() │   │
-│  └─────────────────────────────────────────────────────────────────────┘   │
-│                                    │                                        │
-│                                    ▼                                        │
-│  ┌─────────────────────────────────────────────────────────────────────┐   │
-│  │                    OtgGadgetManager (manager.rs)                     │   │
-│  │  ┌───────────────────────────────────────────────────────────────┐  │   │
-│  │  │                   Gadget Lifecycle                             │  │   │
-│  │  │  create_gadget() │ destroy_gadget() │ bind_udc() │ unbind()   │  │   │
-│  │  └───────────────────────────────────────────────────────────────┘  │   │
-│  └─────────────────────────────────────────────────────────────────────┘   │
-│                                    │                                        │
-│           ┌────────────────────────┼────────────────────────┐              │
-│           │                        │                        │              │
-│           ▼                        ▼                        ▼              │
-│  ┌─────────────────┐     ┌─────────────────┐     ┌─────────────────┐      │
-│  │  HID Function   │     │  MSD Function   │     │ Endpoint Alloc  │      │
-│  │    (hid.rs)     │     │    (msd.rs)     │     │ (endpoint.rs)   │      │
-│  └─────────────────┘     └─────────────────┘     └─────────────────┘      │
-│           │                        │                                        │
-│           ▼                        ▼                                        │
-│  ┌─────────────────────────────────────────────────────────────────────┐   │
-│  │                       ConfigFS Operations                            │   │
-│  │  /sys/kernel/config/usb_gadget/one-kvm/                             │   │
-│  │  ├── idVendor, idProduct, strings/                                   │   │
-│  │  ├── configs/c.1/                                                    │   │
-│  │  │   └── functions/ (symlinks)                                       │   │
-│  │  └── functions/                                                      │   │
-│  │      ├── hid.usb0, hid.usb1, hid.usb2                               │   │
-│  │      └── mass_storage.usb0                                           │   │
-│  └─────────────────────────────────────────────────────────────────────┘   │
-└─────────────────────────────────────────────────────────────────────────────┘
-                                    │
-                                    ▼
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                              Linux Kernel                                    │
-│  ┌─────────────────┐     ┌─────────────────┐                               │
-│  │   /dev/hidg*    │     │  Mass Storage   │                               │
-│  │  (HID devices)  │     │    Backend      │                               │
-│  └─────────────────┘     └─────────────────┘                               │
-└─────────────────────────────────────────────────────────────────────────────┘
-```
-
-### 4.4 事件系统架构
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                           Event System Architecture                          │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                          Event Producers                                     │
-├─────────────────────────────────────────────────────────────────────────────┤
-│  ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐         │
-│  │  Video   │ │   HID    │ │   MSD    │ │   ATX    │ │  Audio   │         │
-│  │ Module   │ │ Module   │ │ Module   │ │ Module   │ │ Module   │         │
-│  └────┬─────┘ └────┬─────┘ └────┬─────┘ └────┬─────┘ └────┬─────┘         │
-│       │            │            │            │            │               │
-│       └────────────┴────────────┼────────────┴────────────┘               │
-│                                 │                                          │
-│                                 ▼                                          │
-│  ┌─────────────────────────────────────────────────────────────────────┐  │
-│  │                          EventBus                                    │  │
-│  │                   (tokio broadcast channel)                          │  │
-│  │  ┌───────────────────────────────────────────────────────────────┐  │  │
-│  │  │                    SystemEvent Enum                            │  │  │
-│  │  │  StreamStateChanged │ HidStateChanged │ MsdStateChanged       │  │  │
-│  │  │  AtxStateChanged │ AudioStateChanged │ DeviceInfo │ Error     │  │  │
-│  │  └───────────────────────────────────────────────────────────────┘  │  │
-│  └─────────────────────────────────────────────────────────────────────┘  │
-│                                 │                                          │
-│       ┌─────────────────────────┼─────────────────────────┐               │
-│       │                         │                         │               │
-│       ▼                         ▼                         ▼               │
-│  ┌──────────┐            ┌──────────┐            ┌──────────┐            │
-│  │WebSocket │            │ DeviceInfo│            │ Internal │            │
-│  │ Clients  │            │Broadcaster│            │  Tasks   │            │
-│  └──────────┘            └──────────┘            └──────────┘            │
-│                                                                           │
-└─────────────────────────────────────────────────────────────────────────────┘
-```
-
----
-
-## 5. 初始化流程
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                         Application Startup Flow                             │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-main()
-   │
-   ├──► Parse CLI Arguments (clap)
-   │      - address, port, data_dir
-   │      - enable_https, ssl_cert, ssl_key
-   │      - verbosity (-v, -vv, -vvv)
-   │
-   ├──► Initialize Logging (tracing)
-   │
-   ├──► Create/Open SQLite Database
-   │      └─► ConfigStore::new()
-   │      └─► UserStore::new()
-   │      └─► SessionStore::new()
-   │
-   ├──► Initialize Core Services
-   │      │
-   │      ├──► EventBus::new()
-   │      │      └─► Create tokio broadcast channel
-   │      │
-   │      ├──► OtgService::new()
-   │      │      └─► Detect UDC device (/sys/class/udc)
-   │      │      └─► Initialize OtgGadgetManager
-   │      │
-   │      ├──► HidController::new()
-   │      │      └─► Detect backend type (OTG/CH9329/None)
-   │      │      └─► Create controller with optional OtgService
-   │      │
-   │      ├──► HidController::init()
-   │      │      └─► Request HID function from OtgService
-   │      │      └─► Create HID devices (/dev/hidg0-3)
-   │      │      └─► Open device files with O_NONBLOCK
-   │      │      └─► Initialize HidHealthMonitor
-   │      │
-   │      ├──► MsdController::init() (if configured)
-   │      │      └─► Request MSD function from OtgService
-   │      │      └─► Create mass storage device
-   │      │      └─► Initialize Ventoy drive (if available)
-   │      │
-   │      ├──► AtxController::init() (if configured)
-   │      │      └─► Setup GPIO pins or USB relay
-   │      │
-   │      ├──► AudioController::init()
-   │      │      └─► Open ALSA device
-   │      │      └─► Initialize Opus encoder
-   │      │
-   │      ├──► VideoStreamManager::new()
-   │      │      └─► Initialize SharedVideoPipeline
-   │      │      └─► Setup encoder registry (H264/H265/VP8/VP9)
-   │      │      └─► Detect hardware acceleration (VAAPI/RKMPP/V4L2 M2M)
-   │      │
-   │      └──► RustDeskService::new() (if configured)
-   │             └─► Load/generate device ID and keys
-   │             └─► Connect to rendezvous server
-   │
-   ├──► Create AppState
-   │      └─► Wrap all services in Arc<>
-   │
-   ├──► Spawn Background Tasks
-   │      ├──► spawn_device_info_broadcaster()
-   │      ├──► extension_health_check_task()
-   │      └──► rustdesk_reconnect_task()
-   │
-   ├──► Create Axum Router
-   │      └─► create_router(app_state)
-   │
-   └──► Start HTTP/HTTPS Server
-          └─► axum::serve() or axum_server with TLS
-```
-
----
-
-## 6. 目录结构
-
-```
-One-KVM-RUST/
-├── src/                              # Rust 源代码
-│   ├── main.rs                      # 应用入口点
-│   ├── lib.rs                       # 库导出
-│   ├── state.rs                     # AppState 定义
-│   ├── error.rs                     # 错误类型定义
-│   │
-│   ├── video/                       # 视频模块
-│   │   ├── mod.rs
-│   │   ├── capture.rs              # V4L2 采集
-│   │   ├── streamer.rs             # 视频流服务
-│   │   ├── stream_manager.rs       # 流管理器
-│   │   ├── shared_video_pipeline.rs # 共享视频管道
-│   │   ├── format.rs               # 像素格式
-│   │   ├── frame.rs                # 视频帧
-│   │   ├── convert.rs              # 格式转换
-│   │   └── encoder/                # 编码器
-│   │       ├── mod.rs
-│   │       ├── traits.rs
-│   │       ├── h264.rs
-│   │       ├── h265.rs
-│   │       ├── vp8.rs
-│   │       ├── vp9.rs
-│   │       └── jpeg.rs
-│   │
-│   ├── hid/                         # HID 模块
-│   │   ├── mod.rs                  # HidController（主控制器）
-│   │   ├── backend.rs              # HidBackend trait 和 HidBackendType
-│   │   ├── otg.rs                  # OTG 后端（USB Gadget HID）
-│   │   ├── ch9329.rs               # CH9329 串口后端
-│   │   ├── consumer.rs             # Consumer Control usage codes
-│   │   ├── keymap.rs               # JS keyCode → USB HID 转换表
-│   │   ├── types.rs                # 事件类型定义
-│   │   ├── monitor.rs              # HidHealthMonitor（错误跟踪与恢复）
-│   │   ├── datachannel.rs          # DataChannel 二进制协议解析
-│   │   └── websocket.rs            # WebSocket 二进制协议适配
-│   │
-│   ├── otg/                         # USB OTG 模块
-│   │   ├── mod.rs
-│   │   ├── service.rs              # OtgService
-│   │   ├── manager.rs              # GadgetManager
-│   │   ├── hid.rs                  # HID Function
-│   │   ├── msd.rs                  # MSD Function
-│   │   ├── configfs.rs             # ConfigFS 操作
-│   │   ├── endpoint.rs             # 端点分配
-│   │   └── report_desc.rs          # HID 报告描述符
-│   │
-│   ├── msd/                         # MSD 模块
-│   │   ├── mod.rs
-│   │   ├── controller.rs           # MsdController
-│   │   ├── image.rs                # 镜像管理
-│   │   ├── ventoy_drive.rs         # Ventoy 驱动
-│   │   ├── monitor.rs              # 健康监视
-│   │   └── types.rs                # 类型定义
-│   │
-│   ├── atx/                         # ATX 模块
-│   │   ├── mod.rs
-│   │   ├── controller.rs           # AtxController
-│   │   ├── executor.rs             # 动作执行器
-│   │   ├── types.rs                # 类型定义
-│   │   ├── led.rs                  # LED 监视
-│   │   └── wol.rs                  # Wake-on-LAN
-│   │
-│   ├── audio/                       # 音频模块
-│   │   ├── mod.rs
-│   │   ├── controller.rs           # AudioController
-│   │   ├── capture.rs              # ALSA 采集
-│   │   ├── encoder.rs              # Opus 编码
-│   │   ├── shared_pipeline.rs      # 共享管道
-│   │   ├── monitor.rs              # 健康监视
-│   │   └── device.rs               # 设备枚举
-│   │
-│   ├── webrtc/                      # WebRTC 模块
-│   │   ├── mod.rs
-│   │   ├── webrtc_streamer.rs      # WebRTC 管理器
-│   │   ├── universal_session.rs    # 会话管理
-│   │   ├── video_track.rs          # 视频轨道
-│   │   ├── rtp.rs                  # RTP 打包
-│   │   ├── h265_payloader.rs       # H265 RTP
-│   │   ├── peer.rs                 # PeerConnection
-│   │   ├── config.rs               # 配置
-│   │   ├── signaling.rs            # 信令
-│   │   └── track.rs                # 轨道基类
-│   │
-│   ├── auth/                        # 认证模块
-│   │   ├── mod.rs
-│   │   ├── user.rs                 # 用户管理
-│   │   ├── session.rs              # 会话管理
-│   │   ├── password.rs             # 密码哈希
-│   │   └── middleware.rs           # Axum 中间件
-│   │
-│   ├── config/                      # 配置模块
-│   │   ├── mod.rs
-│   │   ├── schema.rs               # 配置结构定义
-│   │   └── store.rs                # SQLite 存储
-│   │
-│   ├── events/                      # 事件模块
-│   │   └── mod.rs                  # EventBus
-│   │
-│   ├── rustdesk/                    # RustDesk 模块
-│   │   ├── mod.rs                  # RustDeskService
-│   │   ├── connection.rs           # 连接管理
-│   │   ├── rendezvous.rs           # 渲染服务器通信
-│   │   ├── crypto.rs               # NaCl 加密
-│   │   ├── config.rs               # 配置
-│   │   ├── hid_adapter.rs          # HID 适配
-│   │   ├── frame_adapters.rs       # 帧格式转换
-│   │   ├── protocol.rs             # 协议包装
-│   │   └── bytes_codec.rs          # 帧编码
-│   │
-│   ├── extensions/                  # 扩展模块
-│   │   └── mod.rs                  # ExtensionManager
-│   │
-│   ├── web/                         # Web 模块
-│   │   ├── mod.rs
-│   │   ├── routes.rs               # 路由定义
-│   │   ├── ws.rs                   # WebSocket
-│   │   ├── audio_ws.rs             # 音频 WebSocket
-│   │   ├── static_files.rs         # 静态文件
-│   │   └── handlers/               # API 处理器
-│   │       ├── mod.rs
-│   │       └── config/
-│   │
-│   ├── stream/                      # MJPEG 流
-│   │   └── mod.rs
-│   │
-│   └── utils/                       # 工具函数
-│       └── mod.rs
-│
-├── web/                             # Vue3 前端
-│   ├── src/
-│   │   ├── views/                  # 页面组件
-│   │   ├── components/             # UI 组件
-│   │   ├── api/                    # API 客户端
-│   │   ├── stores/                 # Pinia 状态
-│   │   ├── router/                 # 路由配置
-│   │   ├── i18n/                   # 国际化
-│   │   └── types/                  # TypeScript 类型
-│   └── package.json
-│
-├── libs/                            # 外部库
-│   ├── hwcodec/                    # 硬件视频编码
-│   └── ventoy-img-rs/              # Ventoy 支持
-│
-├── protos/                          # Protobuf 定义
-│   ├── message.proto               # RustDesk 消息
-│   └── rendezvous.proto            # RustDesk 渲染
-│
-├── docs/                            # 文档
-├── scripts/                         # 脚本
-├── Cargo.toml                       # Rust 配置
-├── build.rs                         # 构建脚本
-└── README.md
-```
-
----
-
-## 7. 安全架构
-
-### 7.1 认证流程
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                         Authentication Flow                                  │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-┌───────────┐        ┌───────────┐        ┌───────────┐        ┌───────────┐
-│  Client   │        │  Axum     │        │  Auth     │        │  SQLite   │
-│  Browser  │        │  Server   │        │  Module   │        │  Database │
-└─────┬─────┘        └─────┬─────┘        └─────┬─────┘        └─────┬─────┘
-      │                    │                    │                    │
-      │  POST /auth/login  │                    │                    │
-      │  {username, pass}  │                    │                    │
-      │───────────────────►│                    │                    │
-      │                    │  verify_user()     │                    │
-      │                    │───────────────────►│                    │
-      │                    │                    │  SELECT user       │
-      │                    │                    │───────────────────►│
-      │                    │                    │◄───────────────────│
-      │                    │                    │                    │
-      │                    │                    │  Argon2 verify     │
-      │                    │                    │  ────────────►     │
-      │                    │                    │                    │
-      │                    │  session_token     │                    │
-      │                    │◄───────────────────│                    │
-      │                    │                    │                    │
-      │  Set-Cookie:       │                    │                    │
-      │  session_id=token  │                    │                    │
-      │◄───────────────────│                    │                    │
-      │                    │                    │                    │
-      │  GET /api/...      │                    │                    │
-      │  Cookie: session   │                    │                    │
-      │───────────────────►│                    │                    │
-      │                    │  validate_session()│                    │
-      │                    │───────────────────►│                    │
-      │                    │  user_info         │                    │
-      │                    │◄───────────────────│                    │
-      │                    │                    │                    │
-      │  Response          │                    │                    │
-      │◄───────────────────│                    │                    │
-```
-
-### 7.2 权限层级
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                          Permission Levels                                   │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-┌─────────────────────────────────────────────────────────────────────────────┐
-│  Public (No Auth)                                                            │
-│  ├── GET /health                                                             │
-│  ├── POST /auth/login                                                        │
-│  ├── GET /setup                                                              │
-│  └── POST /setup/init                                                        │
-├─────────────────────────────────────────────────────────────────────────────┤
-│  User (Authenticated)                                                        │
-│  ├── GET /info                     (系统信息)                                │
-│  ├── GET /devices                  (设备列表)                                │
-│  ├── GET/POST /stream/*            (流控制)                                  │
-│  ├── POST /webrtc/*                (WebRTC 信令)                            │
-│  ├── POST /hid/*                   (HID 控制)                               │
-│  ├── POST /audio/*                 (音频控制)                               │
-│  └── WebSocket endpoints           (实时通信)                               │
-├─────────────────────────────────────────────────────────────────────────────┤
-│  Admin (Admin Role)                                                          │
-│  ├── GET/PATCH /config/*           (配置管理)                               │
-│  ├── POST /msd/*                   (MSD 操作)                               │
-│  ├── POST /atx/*                   (电源控制)                               │
-│  ├── POST /extensions/*            (扩展管理)                               │
-│  ├── POST /rustdesk/*              (RustDesk 配置)                          │
-│  └── POST /users/*                 (用户管理)                               │
-└─────────────────────────────────────────────────────────────────────────────┘
-```
-
----
-
-## 8. 部署架构
-
-### 8.1 单机部署
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                         Single Binary Deployment                             │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-┌─────────────────────────────────────────────────────────────────────────────┐
-│  ARM64 Device (e.g., Rockchip RK3328)                                       │
-│  ┌───────────────────────────────────────────────────────────────────────┐ │
-│  │  one-kvm (single binary, ~15MB)                                        │ │
-│  │  ┌─────────────────────────────────────────────────────────────────┐  │ │
-│  │  │  Embedded Assets (rust-embed, gzip compressed)                   │  │ │
-│  │  │  - index.html, app.js, app.css, assets/*                        │  │ │
-│  │  └─────────────────────────────────────────────────────────────────┘  │ │
-│  │  ┌─────────────────────────────────────────────────────────────────┐  │ │
-│  │  │  Runtime Data (data_dir)                                         │  │ │
-│  │  │  - one-kvm.db (SQLite)                                          │  │ │
-│  │  │  - images/ (MSD images)                                          │  │ │
-│  │  │  - certs/ (SSL certificates)                                     │  │ │
-│  │  └─────────────────────────────────────────────────────────────────┘  │ │
-│  └───────────────────────────────────────────────────────────────────────┘ │
-│                                                                             │
-│  Hardware Connections:                                                      │
-│  ┌───────────────────┐  ┌───────────────────┐  ┌───────────────────┐      │
-│  │  HDMI Input       │  │  USB OTG Port     │  │  GPIO Header      │      │
-│  │  (/dev/video0)    │  │  (USB Gadget)     │  │  (ATX Control)    │      │
-│  └───────────────────┘  └───────────────────┘  └───────────────────┘      │
-└─────────────────────────────────────────────────────────────────────────────┘
-                          │
-                          │ USB Cable
-                          ▼
-┌─────────────────────────────────────────────────────────────────────────────┐
-│  Target PC                                                                   │
-│  - Receives USB HID events (keyboard/mouse)                                 │
-│  - Provides HDMI video output                                               │
-│  - Can boot from virtual USB drive                                          │
-└─────────────────────────────────────────────────────────────────────────────┘
-```
-
-### 8.2 网络拓扑
-
-```
-┌─────────────────────────────────────────────────────────────────────────────┐
-│                           Network Topology                                   │
-└─────────────────────────────────────────────────────────────────────────────┘
-
-                    Internet
-                        │
-                        │
-            ┌───────────┴───────────┐
-            │                       │
-            ▼                       ▼
-    ┌───────────────┐       ┌───────────────┐
-    │   RustDesk    │       │    Client     │
-    │   Server      │       │   Browser     │
-    │  (hbbs/hbbr)  │       │               │
-    └───────────────┘       └───────────────┘
-            │                       │
-            │                       │
-            └───────────┬───────────┘
-                        │
-                   ┌────┴────┐
-                   │  Router │
-                   │   NAT   │
-                   └────┬────┘
-                        │
-              Local Network
-                        │
-            ┌───────────┴───────────┐
-            │                       │
-            ▼                       ▼
-    ┌───────────────┐       ┌───────────────┐
-    │   One-KVM     │───────│  Target PC    │
-    │   Device      │  USB  │               │
-    │  :8080/:8443  │  HID  │               │
-    └───────────────┘       └───────────────┘
-
-Access Methods:
-1. Local: http://one-kvm.local:8080
-2. HTTPS: https://one-kvm.local:8443
-3. RustDesk: Via RustDesk client with device ID
-```
-
----
-
-## 9. 扩展点
-
-### 9.1 添加新编码器
-
-```rust
-// 1. 实现 Encoder trait
-impl Encoder for MyEncoder {
-    fn encode(&mut self, frame: &VideoFrame) -> Result<Vec<u8>>;
-    fn codec(&self) -> Codec;
-    fn bitrate(&self) -> u32;
-    // ...
-}
-
-// 2. 在 registry 中注册
-encoder_registry.register("my-encoder", || Box::new(MyEncoder::new()));
-```
-
-### 9.2 添加新 HID 后端
-
-```rust
-// 1. 在 backend.rs 中定义新后端类型
-#[derive(Clone, Debug, Serialize, Deserialize)]
-#[serde(tag = "type", rename_all = "lowercase")]
-pub enum HidBackendType {
-    Otg,
-    Ch9329 { port: String, baud_rate: u32 },
-    MyBackend { /* 配置参数 */ },  // 新增
-    None,
-}
-
-// 2. 实现 HidBackend trait
-#[async_trait]
-impl HidBackend for MyBackend {
-    fn name(&self) -> &'static str { "MyBackend" }
-    async fn init(&self) -> Result<()> { /* ... */ }
-    async fn send_keyboard(&self, event: KeyboardEvent) -> Result<()> { /* ... */ }
-    async fn send_mouse(&self, event: MouseEvent) -> Result<()> { /* ... */ }
-    async fn send_consumer(&self, event: ConsumerEvent) -> Result<()> { /* ... */ }
-    async fn reset(&self) -> Result<()> { /* ... */ }
-    async fn shutdown(&self) -> Result<()> { /* ... */ }
-    fn supports_absolute_mouse(&self) -> bool { true }
-    fn screen_resolution(&self) -> Option<(u32, u32)> { None }
-    fn set_screen_resolution(&mut self, width: u32, height: u32) { /* ... */ }
-}
-
-// 3. 在 HidController::init() 中添加分支
-match backend_type {
-    HidBackendType::MyBackend { /* params */ } => {
-        Box::new(MyBackend::new(/* params */)?)
-    }
-    // ...
-}
-```
-
-### 9.3 添加新扩展
-
-```rust
-// 通过 ExtensionManager 管理外部进程
-extension_manager.register("my-extension", ExtensionConfig {
-    command: "my-binary",
-    args: vec!["--port", "9000"],
-    health_check: HealthCheckConfig::Http { url: "http://localhost:9000/health" },
-});
-```
-
----
-
-## 10. 参考资料
-
-- [Axum Web Framework](https://github.com/tokio-rs/axum)
-- [webrtc-rs](https://github.com/webrtc-rs/webrtc)
-- [V4L2 Documentation](https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/v4l2.html)
-- [Linux USB Gadget](https://www.kernel.org/doc/html/latest/usb/gadget_configfs.html)
-- [RustDesk Protocol](https://github.com/rustdesk/rustdesk)

libs/bluetooth-hid/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "one-kvm-bluetooth-hid"
+version = "0.1.0"
+edition = "2021"
+license = "AGPL-3.0-only"
+
+[dependencies]
+bluer = { version = "0.17", features = ["bluetoothd", "l2cap"] }
+dbus = { version = "0.9", features = ["vendored"] }
+tokio = { version = "1", features = ["rt-multi-thread", "macros", "sync", "time", "process"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+dbus-crossroads = "0.5"
+dbus-tokio = "0.7"
+libc = "0.2"
+tracing = "0.1"

libs/bluetooth-hid/examples/pairing_probe.rs

@@ -0,0 +1,49 @@
+//! Explicit hardware regression: opens a 10-second pairing window without
+//! removing existing bonds or sending input. Stop the production HID first.
+use one_kvm_bluetooth_hid::{Action, Config, Peripheral};
+use std::time::Duration;
+
+#[tokio::main]
+async fn main() -> Result<(), String> {
+    let peripheral = Peripheral::start(Config {
+        adapter: "hci0".into(),
+        name: "One-KVM HID".into(),
+        peer: None,
+    })?;
+    let result = async {
+        for _ in 0..50 {
+            if peripheral.status().initialized {
+                break;
+            }
+            tokio::time::sleep(Duration::from_millis(100)).await;
+        }
+        let before = peripheral.status();
+        if !before.initialized {
+            return Err(format!("Initialization failed: {:?}", before.error));
+        }
+        if !before
+            .devices
+            .iter()
+            .any(|d| Some(&d.address) == before.peer.as_ref() && d.paired)
+        {
+            return Err("This regression needs an existing bonded computer".into());
+        }
+        peripheral.action(Action::Pair(10)).await?;
+        tokio::time::sleep(Duration::from_secs(1)).await;
+        let open = peripheral.status();
+        println!("open: {}", serde_json::to_string(&open).unwrap());
+        if open.pairing_seconds == 0 {
+            return Err("Existing bond prematurely closed pairing".into());
+        }
+        tokio::time::sleep(Duration::from_secs(10)).await;
+        let expired = peripheral.status();
+        println!("expired: {}", serde_json::to_string(&expired).unwrap());
+        if expired.pairing_seconds != 0 || expired.peer != before.peer {
+            return Err("Window did not expire while preserving the bonded peer".into());
+        }
+        Ok(())
+    }
+    .await;
+    let cleanup = peripheral.shutdown().await;
+    result.and(cleanup)
+}

libs/bluetooth-hid/examples/probe.rs

@@ -0,0 +1,24 @@
+//! Native hardware smoke check. Registers for 12 seconds, sends no input,
+//! opens no pairing window, then restores the adapter configuration.
+use one_kvm_bluetooth_hid::{Config, Peripheral};
+use std::time::Duration;
+#[tokio::main]
+async fn main() -> Result<(), String> {
+    let peripheral = Peripheral::start(Config {
+        adapter: "hci0".into(),
+        name: "One-KVM HID".into(),
+        peer: None,
+    })?;
+    let mut initialized = false;
+    for _ in 0..12 {
+        tokio::time::sleep(Duration::from_secs(1)).await;
+        let status = peripheral.status();
+        initialized |= status.initialized;
+        println!("{}", serde_json::to_string(&status).unwrap());
+    }
+    peripheral.shutdown().await?;
+    if !initialized {
+        return Err("Native BlueZ peripheral never initialized".into());
+    }
+    Ok(())
+}

libs/bluetooth-hid/src/agent.rs

@@ -0,0 +1,236 @@
+use crate::Shared;
+use dbus::{channel::MatchingReceiver, message::MatchRule, nonblock::Proxy, Path};
+use dbus_crossroads::Crossroads;
+use std::{
+    sync::Arc,
+    time::{Duration, Instant},
+};
+
+const PATH: &str = "/org/onekvm/bluetooth/agent";
+pub struct Agent {
+    connection: Arc<dbus::nonblock::SyncConnection>,
+    task: tokio::task::JoinHandle<()>,
+}
+impl Agent {
+    pub async fn register(shared: Arc<Shared>, adapter: String) -> Result<Self, String> {
+        let (resource, connection) =
+            dbus_tokio::connection::new_system_sync().map_err(|e| e.to_string())?;
+        let task = tokio::spawn(async move {
+            let _ = resource.await;
+        });
+        let mut cr = Crossroads::new();
+        let iface = cr.register("org.bluez.Agent1", |b| {
+            b.method("Release", (), (), |_, _: &mut (), ()| Ok(()));
+            b.method("Cancel", (), (), |_, _: &mut (), ()| Ok(()));
+            let state = shared.clone();
+            let name = adapter.clone();
+            b.method(
+                "RequestAuthorization",
+                ("device",),
+                (),
+                move |_, _: &mut (), (path,): (Path<'static>,)| {
+                    authorize(&state, &name, &path, true)
+                },
+            );
+            let state = shared.clone();
+            let name = adapter.clone();
+            b.method(
+                "RequestConfirmation",
+                ("device", "passkey"),
+                (),
+                move |_, _: &mut (), (path, _): (Path<'static>, u32)| {
+                    authorize(&state, &name, &path, true)
+                },
+            );
+            b.method(
+                "AuthorizeService",
+                ("device", "uuid"),
+                (),
+                move |_, _: &mut (), (path, uuid): (Path<'static>, String)| {
+                    if !matches!(uuid.as_str(), "00001124-0000-1000-8000-00805f9b34fb") {
+                        return Err(dbus::MethodErr::from((
+                            "org.bluez.Error.Rejected",
+                            "Not an HID service",
+                        )));
+                    }
+                    authorize(&shared, &adapter, &path, false)
+                },
+            );
+        });
+        cr.insert(PATH, &[iface], ());
+        let profile = cr.register("org.bluez.Profile1", |b| {
+            b.method("Release", (), (), |_, _: &mut (), ()| Ok(()));
+            b.method(
+                "RequestDisconnection",
+                ("device",),
+                (),
+                |_, _: &mut (), (_device,): (Path<'static>,)| Ok(()),
+            );
+            b.method(
+                "NewConnection",
+                ("device", "fd", "properties"),
+                (),
+                |_,
+                 _: &mut (),
+                 (_device, _fd, _props): (
+                    Path<'static>,
+                    dbus::arg::OwnedFd,
+                    dbus::arg::PropMap,
+                )| {
+                    // This profile only publishes SDP. Our L2CAP sockets own both HID channels.
+                    Err::<(), _>(dbus::MethodErr::from((
+                        "org.bluez.Error.Rejected",
+                        "Unexpected profile connection",
+                    )))
+                },
+            );
+        });
+        cr.insert("/org/onekvm/bluetooth/profile", &[profile], ());
+        connection.start_receive(
+            MatchRule::new_method_call(),
+            Box::new(move |msg, conn| {
+                let _ = cr.handle_message(msg, conn);
+                true
+            }),
+        );
+        let agent = Self { connection, task };
+        let proxy = Proxy::new(
+            "org.bluez",
+            "/org/bluez",
+            Duration::from_secs(5),
+            agent.connection.clone(),
+        );
+        let result: Result<(), dbus::Error> = proxy
+            .method_call(
+                "org.bluez.AgentManager1",
+                "RegisterAgent",
+                (Path::from(PATH), "NoInputNoOutput"),
+            )
+            .await;
+        if let Err(error) = result {
+            return Err(error.to_string());
+        }
+        let result: Result<(), dbus::Error> = proxy
+            .method_call(
+                "org.bluez.AgentManager1",
+                "RequestDefaultAgent",
+                (Path::from(PATH),),
+            )
+            .await;
+        result.map_err(|e| e.to_string())?;
+        let mut options: dbus::arg::PropMap = std::collections::HashMap::new();
+        options.insert(
+            "ServiceRecord".into(),
+            dbus::arg::Variant(Box::new(crate::protocol::sdp())),
+        );
+        options.insert(
+            "Role".into(),
+            dbus::arg::Variant(Box::new("server".to_string())),
+        );
+        options.insert(
+            "RequireAuthentication".into(),
+            dbus::arg::Variant(Box::new(true)),
+        );
+        options.insert(
+            "RequireAuthorization".into(),
+            dbus::arg::Variant(Box::new(false)),
+        );
+        let result: Result<(), dbus::Error> = proxy
+            .method_call(
+                "org.bluez.ProfileManager1",
+                "RegisterProfile",
+                (
+                    Path::from("/org/onekvm/bluetooth/profile"),
+                    crate::protocol::HID_UUID,
+                    options,
+                ),
+            )
+            .await;
+        result.map_err(|e| format!("Register HID SDP: {e}"))?;
+        Ok(agent)
+    }
+}
+impl Drop for Agent {
+    fn drop(&mut self) {
+        self.task.abort();
+    }
+}
+fn authorize(
+    shared: &Shared,
+    adapter: &str,
+    path: &str,
+    pairing: bool,
+) -> Result<(), dbus::MethodErr> {
+    let rejected = || {
+        dbus::MethodErr::from((
+            "org.bluez.Error.Rejected",
+            "Open pairing in One-KVM or select the paired computer",
+        ))
+    };
+    let prefix = format!("/org/bluez/{adapter}/dev_");
+    let address = path
+        .strip_prefix(&prefix)
+        .ok_or_else(rejected)?
+        .replace('_', ":");
+    let mut state = shared.state.lock().unwrap();
+    if pairing
+        && !state
+            .pairing_until
+            .is_some_and(|until| until > Instant::now())
+    {
+        return Err(rejected());
+    }
+    if state.peer.as_ref().is_some_and(|peer| peer != &address) {
+        return Err(rejected());
+    }
+    if state.peer.is_none() {
+        if !pairing || state.bonded_before_pairing.contains(&address) {
+            return Err(rejected());
+        }
+        state.peer = Some(address);
+    }
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn existing_unrelated_bond_cannot_be_adopted_by_agent_callback() {
+        let shared = Shared::new(None);
+        {
+            let mut state = shared.state.lock().unwrap();
+            state.pairing_until = Some(Instant::now() + Duration::from_secs(120));
+            state
+                .bonded_before_pairing
+                .insert("10:6F:D9:66:97:88".into());
+        }
+        assert!(authorize(
+            &shared,
+            "hci0",
+            "/org/bluez/hci0/dev_10_6F_D9_66_97_88",
+            true
+        )
+        .is_err());
+        assert!(shared.state.lock().unwrap().peer.is_none());
+    }
+    #[test]
+    fn only_pair_during_window_and_pin_first_peer() {
+        let state = Shared::new(None);
+        let first = "/org/bluez/hci0/dev_10_6F_D9_66_97_88";
+        assert!(authorize(&state, "hci0", first, true).is_err());
+        state.state.lock().unwrap().pairing_until = Some(Instant::now() + Duration::from_secs(60));
+        assert!(authorize(&state, "hci0", first, true).is_ok());
+        assert!(authorize(
+            &state,
+            "hci0",
+            "/org/bluez/hci0/dev_10_6F_D9_66_97_89",
+            true
+        )
+        .is_err());
+        assert!(authorize(&state, "hci1", first, true).is_err());
+        state.state.lock().unwrap().pairing_until = None;
+        assert!(authorize(&state, "hci0", first, false).is_ok());
+        assert!(authorize(&state, "hci0", first, true).is_err());
+    }
+}

libs/bluetooth-hid/src/bonds.rs

@@ -0,0 +1,145 @@
+//! Only bonds explicitly owned by this HID peripheral may be removed.
+use bluer::{Adapter, Session};
+use std::{future::Future, pin::Pin};
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct Bond {
+    pub adapter: String,
+    pub peer: String,
+    pub pending: bool,
+}
+pub type Operation<'a, T> = Pin<Box<dyn Future<Output = Result<T, String>> + Send + 'a>>;
+pub trait BondStore: Send + Sync {
+    fn list(&self) -> Operation<'_, Vec<Bond>>;
+    fn save(&self, bond: Bond) -> Operation<'_, ()>;
+    fn remove(&self, bond: Bond) -> Operation<'_, ()>;
+}
+
+pub async fn clean_adapter(store: &dyn BondStore, adapter: &Adapter) -> Result<(), String> {
+    let address = adapter
+        .address()
+        .await
+        .map_err(|e| e.to_string())?
+        .to_string();
+    clean_owned(store, &address, |peer| async move {
+        let peer = peer.parse().map_err(|_| "Invalid stored HID peer")?;
+        if adapter
+            .device_addresses()
+            .await
+            .map_err(|e| e.to_string())?
+            .contains(&peer)
+        {
+            adapter
+                .remove_device(peer)
+                .await
+                .map_err(|e| e.to_string())?;
+        }
+        Ok(())
+    })
+    .await
+}
+
+async fn clean_owned<F, Fut>(
+    store: &dyn BondStore,
+    address: &str,
+    mut remove: F,
+) -> Result<(), String>
+where
+    F: FnMut(String) -> Fut,
+    Fut: Future<Output = Result<(), String>>,
+{
+    for bond in store
+        .list()
+        .await?
+        .into_iter()
+        .filter(|b| b.pending && b.adapter == address)
+    {
+        remove(bond.peer.clone()).await?;
+        // Keep the tombstone until BlueZ confirms removal; retry safely after interruption.
+        store.remove(bond).await?;
+    }
+    Ok(())
+}
+
+pub async fn reset(store: &dyn BondStore, explicit: Vec<Bond>) -> Result<(), String> {
+    let session = Session::new().await.map_err(|e| e.to_string())?;
+    let mut owned = store.list().await?;
+    owned.extend(explicit);
+    for mut bond in owned {
+        bond.pending = true;
+        store.save(bond).await?;
+    }
+    for name in session.adapter_names().await.map_err(|e| e.to_string())? {
+        clean_adapter(store, &session.adapter(&name).map_err(|e| e.to_string())?).await?;
+    }
+    // Records for absent adapters remain pending and are cleaned before their next use.
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::sync::Mutex;
+    #[derive(Default)]
+    struct Memory(Mutex<Vec<Bond>>);
+    impl BondStore for Memory {
+        fn list(&self) -> Operation<'_, Vec<Bond>> {
+            Box::pin(async { Ok(self.0.lock().unwrap().clone()) })
+        }
+        fn save(&self, bond: Bond) -> Operation<'_, ()> {
+            Box::pin(async move {
+                let mut rows = self.0.lock().unwrap();
+                rows.retain(|b| b.adapter != bond.adapter || b.peer != bond.peer);
+                rows.push(bond);
+                Ok(())
+            })
+        }
+        fn remove(&self, bond: Bond) -> Operation<'_, ()> {
+            Box::pin(async move {
+                self.0.lock().unwrap().retain(|b| b != &bond);
+                Ok(())
+            })
+        }
+    }
+    fn bond(adapter: &str, peer: &str, pending: bool) -> Bond {
+        Bond {
+            adapter: adapter.into(),
+            peer: peer.into(),
+            pending,
+        }
+    }
+    #[tokio::test]
+    async fn cleanup_only_removes_owned_pending_bonds_on_the_selected_hardware() {
+        let current = bond("adapter-A", "host-1", true);
+        let absent = bond("adapter-B", "host-2", true);
+        let retained = bond("adapter-A", "host-3", false);
+        let store = Memory(Mutex::new(vec![current, absent.clone(), retained.clone()]));
+        let removed = Mutex::new(Vec::new());
+        clean_owned(&store, "adapter-A", |peer| {
+            removed.lock().unwrap().push(peer);
+            async { Ok(()) }
+        })
+        .await
+        .unwrap();
+        assert_eq!(*removed.lock().unwrap(), vec!["host-1"]);
+        assert_eq!(store.list().await.unwrap(), vec![absent, retained]);
+    }
+    #[tokio::test]
+    async fn cleanup_failure_keeps_tombstone_and_is_reported() {
+        let record = bond("adapter-A", "host-1", true);
+        let store = Memory(Mutex::new(vec![record.clone()]));
+        assert_eq!(
+            clean_owned(&store, "adapter-A", |_| async {
+                Err("BlueZ denied removal".into())
+            })
+            .await
+            .unwrap_err(),
+            "BlueZ denied removal"
+        );
+        assert_eq!(store.list().await.unwrap(), vec![record]);
+        clean_owned(&store, "adapter-A", |_| async { Ok(()) })
+            .await
+            .unwrap();
+        assert!(store.list().await.unwrap().is_empty());
+    }
+}

libs/bluetooth-hid/src/controller.rs

@@ -0,0 +1,135 @@
+//! Exclusive controller ownership. No BLE switching or power cycling.
+use std::{
+    fs::{File, OpenOptions},
+    os::{fd::AsRawFd, unix::fs::OpenOptionsExt},
+    process::Stdio,
+    time::Duration,
+};
+use tokio::process::Command;
+pub struct Controller {
+    _lock: File,
+    adapter: String,
+    old_class: (u8, u8),
+    old_connectable: bool,
+}
+async fn run_once(adapter: &str, args: &[&str]) -> Result<String, String> {
+    let mut cmd = Command::new("btmgmt");
+    cmd.arg("--index")
+        .arg(adapter.trim_start_matches("hci"))
+        .args(args)
+        .stdin(Stdio::piped())
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped())
+        .kill_on_drop(true);
+    let mut child = cmd
+        .spawn()
+        .map_err(|e| format!("Install bluez/btmgmt: {e}"))?;
+    // BlueZ 5.55's btmgmt exits on stdin EOF, even with a command argument.
+    // Keep a pipe open until it finishes; systemd normally supplies /dev/null.
+    let stdin = child.stdin.take();
+    let result = tokio::time::timeout(Duration::from_secs(5), child.wait_with_output())
+        .await
+        .map_err(|_| "btmgmt timeout")?
+        .map_err(|e| format!("Install bluez/btmgmt: {e}"))?;
+    drop(stdin);
+    let text = String::from_utf8_lossy(&result.stdout).into_owned();
+    if !result.status.success()
+        || !result.stderr.is_empty()
+        || text.to_lowercase().contains("failed")
+    {
+        return Err(format!(
+            "btmgmt {}: {text} {}",
+            args.join(" "),
+            String::from_utf8_lossy(&result.stderr)
+        ));
+    }
+    Ok(text)
+}
+async fn run(adapter: &str, args: &[&str]) -> Result<String, String> {
+    // BlueZ updates the EIR/class asynchronously after registering SDP.
+    // Kernel management rejects a simultaneous class change with Busy.
+    for attempt in 0..5 {
+        match run_once(adapter, args).await {
+            Err(error) if error.contains("(Busy)") && attempt < 4 => {
+                tokio::time::sleep(Duration::from_millis(200)).await;
+            }
+            result => return result,
+        }
+    }
+    unreachable!()
+}
+impl Controller {
+    pub async fn acquire(adapter: &str) -> Result<Self, String> {
+        let lock = OpenOptions::new()
+            .read(true)
+            .write(true)
+            .create(true)
+            .truncate(false)
+            .mode(0o600)
+            .custom_flags(libc::O_NOFOLLOW)
+            .open(format!("/run/one-kvm-bluetooth-{adapter}.lock"))
+            .map_err(|e| e.to_string())?;
+        if unsafe { libc::flock(lock.as_raw_fd(), libc::LOCK_EX | libc::LOCK_NB) } != 0 {
+            return Err("Bluetooth adapter already owned by One-KVM".into());
+        }
+        let info = run(adapter, &["info"]).await?;
+        let settings = info
+            .lines()
+            .find_map(|l| l.trim().strip_prefix("current settings:"))
+            .ok_or("Cannot read Bluetooth settings")?;
+        if !settings.split_whitespace().any(|s| s == "br/edr") {
+            return Err(
+                "Classic Bluetooth disabled; enable BR/EDR with btmgmt before using HID".into(),
+            );
+        }
+        let class = info
+            .split_whitespace()
+            .skip_while(|s| *s != "class")
+            .nth(1)
+            .ok_or("Missing Bluetooth class")?;
+        let class =
+            u32::from_str_radix(class.trim_start_matches("0x"), 16).map_err(|e| e.to_string())?;
+        Ok(Self {
+            _lock: lock,
+            adapter: adapter.into(),
+            old_class: (((class >> 8) & 0x1f) as u8, (class & 0xfc) as u8),
+            old_connectable: settings.split_whitespace().any(|s| s == "connectable"),
+        })
+    }
+    pub async fn configure(&self) -> Result<(), String> {
+        run(&self.adapter, &["class", "5", "192"]).await?;
+        run(&self.adapter, &["connectable", "on"]).await?;
+        Ok(())
+    }
+    pub async fn restore(&self) -> Result<(), String> {
+        let mut errors = vec![];
+        if let Err(e) = run(
+            &self.adapter,
+            &[
+                "class",
+                &self.old_class.0.to_string(),
+                &self.old_class.1.to_string(),
+            ],
+        )
+        .await
+        {
+            errors.push(e);
+        }
+        if let Err(e) = run(
+            &self.adapter,
+            &[
+                "connectable",
+                if self.old_connectable { "on" } else { "off" },
+            ],
+        )
+        .await
+        {
+            errors.push(e);
+        }
+        if errors.is_empty() {
+            Ok(())
+        } else {
+            Err(errors.join("; "))
+        }
+    }
+}

libs/bluetooth-hid/src/lib.rs

@@ -0,0 +1,964 @@
+//! Classic Bluetooth HID peripheral: SDP + L2CAP. Linux/BlueZ only.
+mod agent;
+pub mod bonds;
+mod controller;
+mod protocol;
+
+use bluer::{
+    l2cap::{Security, SecurityLevel, SeqPacket, SeqPacketListener, Socket, SocketAddr},
+    Adapter, Address, AddressType, Session,
+};
+use serde::{Deserialize, Serialize};
+use std::{
+    collections::HashSet,
+    sync::{Arc, Mutex},
+    time::{Duration, Instant},
+};
+use tokio::sync::{mpsc, oneshot, watch, Mutex as AsyncMutex};
+
+#[derive(Debug, Clone)]
+pub struct Config {
+    pub adapter: String,
+    pub name: String,
+    pub peer: Option<String>,
+}
+impl Config {
+    pub fn validate(&self) -> Result<(), String> {
+        if !self
+            .adapter
+            .strip_prefix("hci")
+            .is_some_and(|n| !n.is_empty() && n.bytes().all(|c| c.is_ascii_digit()))
+        {
+            return Err("Bluetooth adapter must be hci followed by an index".into());
+        }
+        if self.name.is_empty() || self.name.len() > 64 || self.name.chars().any(char::is_control) {
+            return Err(
+                "Bluetooth name must contain 1–64 UTF-8 bytes without control characters".into(),
+            );
+        }
+        if let Some(peer) = &self.peer {
+            peer.parse::<Address>()
+                .map_err(|_| "Invalid Bluetooth peer address")?;
+        }
+        Ok(())
+    }
+}
+#[derive(Debug, Default, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct Status {
+    pub initialized: bool,
+    pub connected: bool,
+    pub ready: bool,
+    pub adapter: String,
+    pub adapter_address: String,
+    pub peer: Option<String>,
+    pub pairing_seconds: u32,
+    pub control_connected: bool,
+    pub interrupt_connected: bool,
+    pub leds: u8,
+    pub generation: u64,
+    pub error: Option<String>,
+    pub devices: Vec<Device>,
+}
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct Device {
+    pub address: String,
+    pub name: String,
+    pub paired: bool,
+    pub connected: bool,
+}
+#[derive(Debug, Clone, Copy)]
+pub enum Report {
+    Keyboard,
+    Mouse,
+    Consumer,
+}
+impl Report {
+    fn len(self) -> usize {
+        match self {
+            Self::Keyboard => 8,
+            Self::Mouse => 4,
+            Self::Consumer => 2,
+        }
+    }
+    fn id(self) -> u8 {
+        match self {
+            Self::Keyboard => 1,
+            Self::Mouse => 2,
+            Self::Consumer => 3,
+        }
+    }
+}
+struct State {
+    peer: Option<String>,
+    pairing_until: Option<Instant>,
+    bonded_before_pairing: HashSet<String>,
+}
+impl State {
+    fn observe_bond(&mut self, address: &str, paired: bool) {
+        // Just Works may complete without an Agent1 authorization callback.
+        // Adopt only a new bond from our explicit window, respecting a pinned peer.
+        if paired
+            && self.peer.is_none()
+            && self
+                .pairing_until
+                .is_some_and(|until| until > Instant::now())
+            && !self.bonded_before_pairing.contains(address)
+        {
+            self.peer = Some(address.to_owned());
+            tracing::info!(
+                peer = address,
+                "Bluetooth HID selected newly bonded computer"
+            );
+        }
+    }
+    fn close_pairing(&mut self, paired: bool, fallback: Option<String>) {
+        self.pairing_until = None;
+        if !paired {
+            self.peer = fallback;
+        }
+    }
+    fn pairing_completed(&self, selected_paired: bool) -> bool {
+        selected_paired
+            && self
+                .peer
+                .as_ref()
+                .is_some_and(|peer| !self.bonded_before_pairing.contains(peer))
+    }
+}
+struct Shared {
+    state: Mutex<State>,
+}
+impl Shared {
+    fn new(peer: Option<String>) -> Self {
+        Self {
+            state: Mutex::new(State {
+                peer,
+                pairing_until: None,
+                bonded_before_pairing: HashSet::new(),
+            }),
+        }
+    }
+    fn allowed(&self, address: Address) -> bool {
+        self.state.lock().unwrap().peer.as_deref() == Some(address.to_string().as_str())
+    }
+}
+pub enum Action {
+    Pair(u32),
+    ClosePairing,
+    Forget,
+    Disconnect,
+    Reset,
+}
+enum Command {
+    Report(Report, Vec<u8>),
+    Action(Action),
+    Stop,
+}
+struct Request {
+    command: Command,
+    result: oneshot::Sender<Result<(), String>>,
+    expires: Instant,
+}
+pub struct Peripheral {
+    tx: mpsc::Sender<Request>,
+    status: watch::Receiver<Status>,
+    task: AsyncMutex<Option<tokio::task::JoinHandle<()>>>,
+}
+impl Peripheral {
+    pub fn start(config: Config) -> Result<Self, String> {
+        Self::start_with_store(config, None)
+    }
+    pub fn start_with_store(
+        config: Config,
+        bonds: Option<Arc<dyn bonds::BondStore>>,
+    ) -> Result<Self, String> {
+        config.validate()?;
+        let (tx, rx) = mpsc::channel(64);
+        let (state_tx, status) = watch::channel(Status {
+            adapter: config.adapter.clone(),
+            ..Default::default()
+        });
+        let task = tokio::spawn(supervise(config, bonds, rx, state_tx));
+        Ok(Self {
+            tx,
+            status,
+            task: AsyncMutex::new(Some(task)),
+        })
+    }
+    pub fn status(&self) -> Status {
+        self.status.borrow().clone()
+    }
+    pub fn subscribe(&self) -> watch::Receiver<Status> {
+        self.status.clone()
+    }
+    async fn request(&self, command: Command, duration: Duration) -> Result<(), String> {
+        let (result, rx) = oneshot::channel();
+        let request = Request {
+            command,
+            result,
+            expires: Instant::now() + duration,
+        };
+        self.tx
+            .try_send(request)
+            .map_err(|_| "Bluetooth input queue unavailable or full".to_string())?;
+        tokio::time::timeout(duration, rx)
+            .await
+            .map_err(|_| "Bluetooth operation timed out".to_string())?
+            .map_err(|_| "Bluetooth worker stopped".to_string())?
+    }
+    pub async fn send(&self, report: Report, value: Vec<u8>) -> Result<(), String> {
+        if value.len() != report.len() {
+            return Err("Invalid HID report size".into());
+        }
+        self.request(Command::Report(report, value), Duration::from_millis(500))
+            .await
+    }
+    pub async fn action(&self, action: Action) -> Result<(), String> {
+        self.request(Command::Action(action), Duration::from_secs(15))
+            .await
+    }
+    pub async fn shutdown(&self) -> Result<(), String> {
+        if let Some(task) = self.task.lock().await.take() {
+            let result = self.request(Command::Stop, Duration::from_secs(45)).await;
+            // Do not abort: the worker must restore the radio before a backend switch.
+            task.await.map_err(|e| e.to_string())?;
+            result
+        } else {
+            Ok(())
+        }
+    }
+}
+
+fn listen(address: Address, psm: u16) -> Result<SeqPacketListener, String> {
+    let socket = Socket::<SeqPacket>::new_seq_packet().map_err(|e| e.to_string())?;
+    socket
+        .set_security(Security {
+            level: SecurityLevel::Medium,
+            key_size: 0,
+        })
+        .map_err(|e| e.to_string())?;
+    socket.bind(SocketAddr::new(address,AddressType::BrEdr,psm))
+        .map_err(|e|format!("Cannot bind classic HID PSM 0x{psm:02x}: {e}. Disable BlueZ input plugin; see Bluetooth HID setup."))?;
+    socket.listen(2).map_err(|e| e.to_string())
+}
+struct Runtime {
+    adapter: Adapter,
+    _session: Session,
+    shared: Arc<Shared>,
+    agent: Option<agent::Agent>,
+    controller: controller::Controller,
+    listeners: [SeqPacketListener; 2],
+    channels: [Option<Arc<SeqPacket>>; 2],
+    channel_peer: Option<Address>,
+    partial_since: Option<Instant>,
+    hid: protocol::HidProtocol,
+    generation: u64,
+    old_pairable: bool,
+    old_powered: bool,
+    old_alias: String,
+    old_discoverable: bool,
+    old_discoverable_timeout: u32,
+    old_pairable_timeout: u32,
+    config: Config,
+    bonds: Option<Arc<dyn bonds::BondStore>>,
+    recorded_peer: Option<String>,
+}
+impl Runtime {
+    async fn open(
+        config: &Config,
+        bonds: Option<Arc<dyn bonds::BondStore>>,
+    ) -> Result<Self, String> {
+        let controller = controller::Controller::acquire(&config.adapter).await?;
+        let session = Session::new().await.map_err(|e| e.to_string())?;
+        let adapter = session
+            .adapter(&config.adapter)
+            .map_err(|e| e.to_string())?;
+        let address = adapter.address().await.map_err(|e| e.to_string())?;
+        let mut config = config.clone();
+        if let Some(store) = &bonds {
+            bonds::clean_adapter(store.as_ref(), &adapter).await?;
+            if config.peer.is_none() {
+                config.peer = store
+                    .list()
+                    .await?
+                    .into_iter()
+                    .find(|bond| bond.adapter == address.to_string() && !bond.pending)
+                    .map(|bond| bond.peer);
+            }
+        }
+        // Acquire BOTH channels before changing adapter state. Conflict is a startup error.
+        let listeners = [listen(address, 0x11)?, listen(address, 0x13)?];
+        let old_powered = adapter.is_powered().await.map_err(|e| e.to_string())?;
+        let old_pairable = adapter.is_pairable().await.map_err(|e| e.to_string())?;
+        let old_alias = adapter.alias().await.map_err(|e| e.to_string())?;
+        let old_discoverable = adapter.is_discoverable().await.map_err(|e| e.to_string())?;
+        let old_discoverable_timeout = adapter
+            .discoverable_timeout()
+            .await
+            .map_err(|e| e.to_string())?;
+        let old_pairable_timeout = adapter
+            .pairable_timeout()
+            .await
+            .map_err(|e| e.to_string())?;
+        let shared = Arc::new(Shared::new(
+            config.peer.as_ref().map(|p| p.to_ascii_uppercase()),
+        ));
+        let mut runtime = Self {
+            adapter,
+            _session: session,
+            shared,
+            agent: None,
+            controller,
+            listeners,
+            channels: [None, None],
+            channel_peer: None,
+            partial_since: None,
+            hid: Default::default(),
+            generation: 0,
+            old_pairable,
+            old_powered,
+            old_alias,
+            old_discoverable,
+            old_discoverable_timeout,
+            old_pairable_timeout,
+            config: config.clone(),
+            bonds,
+            recorded_peer: None,
+        };
+        if let Err(e) = runtime.setup().await {
+            let restore = runtime.close().await;
+            return Err(format!("{e}; cleanup: {restore:?}"));
+        }
+        Ok(runtime)
+    }
+    async fn setup(&mut self) -> Result<(), String> {
+        self.adapter
+            .set_powered(true)
+            .await
+            .map_err(|e| e.to_string())?;
+        self.adapter
+            .set_discoverable(false)
+            .await
+            .map_err(|e| e.to_string())?;
+        self.adapter
+            .set_pairable(false)
+            .await
+            .map_err(|e| e.to_string())?;
+        self.adapter
+            .set_alias(self.config.name.clone())
+            .await
+            .map_err(|e| e.to_string())?;
+        self.agent =
+            Some(agent::Agent::register(self.shared.clone(), self.config.adapter.clone()).await?);
+        self.controller.configure().await?;
+        self.public(None).await?;
+        Ok(())
+    }
+    async fn public(&self, seconds: Option<u32>) -> Result<(), String> {
+        if let Some(seconds) = seconds {
+            self.adapter
+                .set_pairable_timeout(seconds)
+                .await
+                .map_err(|e| e.to_string())?;
+            self.adapter
+                .set_discoverable_timeout(seconds)
+                .await
+                .map_err(|e| e.to_string())?;
+            self.adapter
+                .set_pairable(true)
+                .await
+                .map_err(|e| e.to_string())?;
+            if let Err(e) = self.adapter.set_discoverable(true).await {
+                let _ = self.adapter.set_pairable(false).await;
+                return Err(e.to_string());
+            }
+        } else {
+            self.adapter
+                .set_discoverable(false)
+                .await
+                .map_err(|e| e.to_string())?;
+            self.adapter
+                .set_pairable(false)
+                .await
+                .map_err(|e| e.to_string())?;
+        }
+        Ok(())
+    }
+    fn drop_channels(&mut self) {
+        for socket in self.channels.iter_mut().filter_map(Option::take) {
+            let _ = socket.shutdown(std::net::Shutdown::Both);
+        }
+        self.channel_peer = None;
+        self.partial_since = None;
+        self.hid = Default::default();
+        self.generation = self.generation.wrapping_add(1);
+    }
+    async fn packet(&self, index: usize, data: &[u8]) -> Result<(), String> {
+        let socket = self.channels[index]
+            .as_ref()
+            .ok_or("Classic HID channel not connected")?;
+        let sent = tokio::time::timeout(Duration::from_millis(250), socket.send(data))
+            .await
+            .map_err(|_| "HID send timeout")?
+            .map_err(|e| e.to_string())?;
+        if sent != data.len() {
+            return Err("Short HID packet write".into());
+        }
+        Ok(())
+    }
+    async fn release(&mut self) {
+        for packet in self.hid.release() {
+            if self.channels[1].is_some() && self.packet(1, &packet).await.is_err() {
+                self.drop_channels();
+                break;
+            }
+        }
+        self.generation = self.generation.wrapping_add(1);
+    }
+    async fn accept(
+        &mut self,
+        index: usize,
+        socket: SeqPacket,
+        peer: SocketAddr,
+    ) -> Result<(), String> {
+        if peer.addr_type != AddressType::BrEdr {
+            return Ok(());
+        }
+        // A host can open HID channels before the next status poll.
+        let paired = self
+            .adapter
+            .device(peer.addr)
+            .map_err(|e| e.to_string())?
+            .is_paired()
+            .await
+            .map_err(|e| e.to_string())?;
+        self.shared
+            .state
+            .lock()
+            .unwrap()
+            .observe_bond(&peer.addr.to_string(), paired);
+        if !self.shared.allowed(peer.addr) {
+            return Ok(());
+        }
+        if self.channel_peer.is_some_and(|p| p != peer.addr) || self.channels[index].is_some() {
+            return Ok(());
+        }
+        // Kernel BT_SECURITY_MEDIUM negotiates encryption before accept completes.
+        if socket
+            .as_ref()
+            .security()
+            .map_err(|e| e.to_string())?
+            .key_size
+            < 7
+        {
+            return Ok(());
+        }
+        self.channel_peer = Some(peer.addr);
+        self.channels[index] = Some(Arc::new(socket));
+        if self.channels.iter().all(Option::is_some) {
+            self.partial_since = None;
+            self.release().await;
+        } else {
+            self.partial_since = Some(Instant::now());
+        }
+        Ok(())
+    }
+    async fn status(&mut self) -> Result<Status, String> {
+        if !self.adapter.is_powered().await.map_err(|e| e.to_string())? {
+            return Err("Bluetooth adapter powered off".into());
+        }
+        // A daemon restart loses the SDP registration even if the adapter comes back powered.
+        if !self
+            .adapter
+            .uuids()
+            .await
+            .map_err(|e| e.to_string())?
+            .unwrap_or_default()
+            .iter()
+            .any(|id| id.to_string() == protocol::HID_UUID)
+        {
+            return Err("Classic HID SDP registration lost; restarting Bluetooth backend".into());
+        }
+        let mut status = Status {
+            initialized: true,
+            adapter: self.config.adapter.clone(),
+            adapter_address: self
+                .adapter
+                .address()
+                .await
+                .map_err(|e| e.to_string())?
+                .to_string(),
+            ..Default::default()
+        };
+        for address in self
+            .adapter
+            .device_addresses()
+            .await
+            .map_err(|e| e.to_string())?
+        {
+            let device = self.adapter.device(address).map_err(|e| e.to_string())?;
+            let connected = device.is_connected().await.unwrap_or(false);
+            let paired = device.is_paired().await.unwrap_or(false);
+            self.shared
+                .state
+                .lock()
+                .unwrap()
+                .observe_bond(&address.to_string(), paired);
+            if paired || connected {
+                status.devices.push(Device {
+                    address: address.to_string(),
+                    name: device.alias().await.unwrap_or_default(),
+                    paired,
+                    connected,
+                });
+            }
+        }
+        status.devices.sort_by(|a, b| a.address.cmp(&b.address));
+        let (peer, until) = {
+            let state = self.shared.state.lock().unwrap();
+            (state.peer.clone(), state.pairing_until)
+        };
+        status.peer = peer.clone();
+        let selected = status
+            .devices
+            .iter()
+            .find(|device| Some(&device.address) == peer.as_ref());
+        let selected_paired = selected.is_some_and(|device| device.paired);
+        if selected_paired && self.recorded_peer != peer {
+            if let (Some(store), Some(peer)) = (&self.bonds, &peer) {
+                store
+                    .save(bonds::Bond {
+                        adapter: status.adapter_address.clone(),
+                        peer: peer.clone(),
+                        pending: false,
+                    })
+                    .await?;
+                self.recorded_peer = Some(peer.clone());
+            }
+        }
+        status.connected = selected.is_some_and(|device| device.paired && device.connected);
+        if self.channels.iter().any(Option::is_some)
+            && (!status.connected
+                || self
+                    .partial_since
+                    .is_some_and(|time| time.elapsed() > Duration::from_secs(10)))
+        {
+            self.drop_channels();
+        }
+        if let Some(until) = until {
+            let completed = self
+                .shared
+                .state
+                .lock()
+                .unwrap()
+                .pairing_completed(selected_paired);
+            if until <= Instant::now() || completed {
+                {
+                    let mut state = self.shared.state.lock().unwrap();
+                    state.close_pairing(
+                        selected_paired,
+                        self.config.peer.as_ref().map(|p| p.to_ascii_uppercase()),
+                    );
+                    status.peer = state.peer.clone();
+                }
+                self.public(None).await?;
+                tracing::info!(reason = if completed { "bonded" } else { "expired" }, peer = ?status.peer, "Bluetooth HID pairing window closed");
+            } else {
+                status.pairing_seconds =
+                    until.saturating_duration_since(Instant::now()).as_secs() as u32 + 1;
+            }
+        }
+        status.control_connected = self.channels[0].is_some();
+        status.interrupt_connected = self.channels[1].is_some();
+        status.ready = status.connected
+            && status.control_connected
+            && status.interrupt_connected
+            && !self.hid.suspended;
+        status.leds = self.hid.leds;
+        status.generation = self.generation;
+        Ok(status)
+    }
+    async fn forget(&mut self) -> Result<(), String> {
+        self.release().await;
+        self.drop_channels();
+        let peer = self.shared.state.lock().unwrap().peer.clone();
+        if let Some(peer) = &peer {
+            let address = peer.parse().map_err(|_| "Invalid peer")?;
+            if self
+                .adapter
+                .device_addresses()
+                .await
+                .map_err(|e| e.to_string())?
+                .contains(&address)
+            {
+                self.adapter
+                    .remove_device(address)
+                    .await
+                    .map_err(|e| e.to_string())?;
+            }
+            self.shared
+                .state
+                .lock()
+                .unwrap()
+                .bonded_before_pairing
+                .remove(peer);
+            tracing::info!(%peer, "Bluetooth HID forgot computer");
+        }
+        if let Some(store) = &self.bonds {
+            let address = self
+                .adapter
+                .address()
+                .await
+                .map_err(|e| e.to_string())?
+                .to_string();
+            for bond in store
+                .list()
+                .await?
+                .into_iter()
+                .filter(|b| b.adapter == address && Some(&b.peer) == peer.as_ref())
+            {
+                store.remove(bond).await?;
+            }
+        }
+        self.recorded_peer = None;
+        self.config.peer = None;
+        self.shared.state.lock().unwrap().peer = None;
+        Ok(())
+    }
+    async fn incoming(&mut self, index: usize, data: &[u8]) -> Result<(), String> {
+        if index == 1 {
+            self.hid.output(data);
+            return Ok(());
+        }
+        let result = self.hid.control(data);
+        if let Some(reply) = result.reply {
+            self.packet(0, &reply).await?;
+        }
+        if result.reset {
+            self.release().await;
+        }
+        if result.unplug {
+            self.forget().await?;
+        }
+        Ok(())
+    }
+    async fn execute(&mut self, command: Command) -> Result<(), String> {
+        match command {
+            Command::Report(kind, value) => {
+                let peer = self.channel_peer.ok_or("Classic HID is not connected")?;
+                if !self.shared.allowed(peer) || self.channels.iter().any(Option::is_none) {
+                    return Err("Classic HID channels are not ready".into());
+                }
+                let device = self.adapter.device(peer).map_err(|e| e.to_string())?;
+                if !device.is_paired().await.unwrap_or(false)
+                    || !device.is_connected().await.unwrap_or(false)
+                {
+                    self.drop_channels();
+                    return Err("Selected Bluetooth computer disconnected".into());
+                }
+                let packet = self.hid.input(kind, &value)?;
+                if let Err(e) = self.packet(1, &packet).await {
+                    self.drop_channels();
+                    return Err(e);
+                }
+            }
+            Command::Action(Action::Pair(seconds)) => {
+                if !(10..=300).contains(&seconds) {
+                    return Err("Pairing window must be 10–300 seconds".into());
+                }
+                let mut bonded = HashSet::new();
+                for address in self
+                    .adapter
+                    .device_addresses()
+                    .await
+                    .map_err(|e| e.to_string())?
+                {
+                    if self
+                        .adapter
+                        .device(address)
+                        .map_err(|e| e.to_string())?
+                        .is_paired()
+                        .await
+                        .map_err(|e| e.to_string())?
+                    {
+                        bonded.insert(address.to_string());
+                    }
+                }
+                {
+                    let mut state = self.shared.state.lock().unwrap();
+                    // Preserve the original baseline when extending an open window.
+                    if !state
+                        .pairing_until
+                        .is_some_and(|until| until > Instant::now())
+                    {
+                        state.bonded_before_pairing = bonded;
+                    }
+                    state.pairing_until =
+                        Some(Instant::now() + Duration::from_secs(seconds.into()));
+                }
+                if let Err(e) = self.public(Some(seconds)).await {
+                    self.shared.state.lock().unwrap().pairing_until = None;
+                    return Err(e);
+                }
+                tracing::info!(seconds, "Bluetooth HID pairing window opened");
+            }
+            Command::Action(Action::ClosePairing) => {
+                self.public(None).await?;
+                let peer = self.shared.state.lock().unwrap().peer.clone();
+                let paired = if let Some(peer) = peer {
+                    self.adapter
+                        .device(peer.parse().map_err(|_| "Invalid HID peer")?)
+                        .map_err(|e| e.to_string())?
+                        .is_paired()
+                        .await
+                        .map_err(|e| e.to_string())?
+                } else {
+                    false
+                };
+                self.shared
+                    .state
+                    .lock()
+                    .unwrap()
+                    .close_pairing(paired, self.config.peer.clone());
+                tracing::info!(reason = "manual", "Bluetooth HID pairing window closed");
+            }
+            Command::Action(Action::Forget) => self.forget().await?,
+            Command::Action(Action::Disconnect) => {
+                self.release().await;
+                self.drop_channels();
+                let peer = self.shared.state.lock().unwrap().peer.clone();
+                if let Some(peer) = peer {
+                    self.adapter
+                        .device(peer.parse().map_err(|_| "Invalid peer")?)
+                        .map_err(|e| e.to_string())?
+                        .disconnect()
+                        .await
+                        .map_err(|e| e.to_string())?;
+                }
+            }
+            Command::Action(Action::Reset) => self.release().await,
+            Command::Stop => {}
+        }
+        Ok(())
+    }
+    async fn close(&mut self) -> Result<(), String> {
+        self.release().await;
+        self.drop_channels();
+        self.agent.take();
+        tokio::time::sleep(Duration::from_millis(100)).await;
+        let mut errors = vec![];
+        if let Err(e) = self.adapter.set_discoverable(false).await {
+            errors.push(e.to_string());
+        }
+        if let Err(e) = self.controller.restore().await {
+            errors.push(e);
+        }
+        if let Err(e) = self.adapter.set_alias(self.old_alias.clone()).await {
+            errors.push(e.to_string());
+        }
+        if let Err(e) = self
+            .adapter
+            .set_discoverable_timeout(self.old_discoverable_timeout)
+            .await
+        {
+            errors.push(e.to_string());
+        }
+        if let Err(e) = self
+            .adapter
+            .set_pairable_timeout(self.old_pairable_timeout)
+            .await
+        {
+            errors.push(e.to_string());
+        }
+        if let Err(e) = self.adapter.set_pairable(self.old_pairable).await {
+            errors.push(e.to_string());
+        }
+        if let Err(e) = self.adapter.set_discoverable(self.old_discoverable).await {
+            errors.push(e.to_string());
+        }
+        if let Err(e) = self.adapter.set_powered(self.old_powered).await {
+            errors.push(e.to_string());
+        }
+        if errors.is_empty() {
+            Ok(())
+        } else {
+            Err(errors.join("; "))
+        }
+    }
+}
+async fn receive(socket: Option<Arc<SeqPacket>>, buffer: &mut [u8]) -> std::io::Result<usize> {
+    match socket {
+        Some(socket) => socket.recv(buffer).await,
+        None => std::future::pending().await,
+    }
+}
+async fn supervise(
+    config: Config,
+    bonds: Option<Arc<dyn bonds::BondStore>>,
+    mut rx: mpsc::Receiver<Request>,
+    tx: watch::Sender<Status>,
+) {
+    let mut generation = 0;
+    loop {
+        let mut runtime = match Runtime::open(&config, bonds.clone()).await {
+            Ok(runtime) => runtime,
+            Err(error) => {
+                tx.send_replace(Status {
+                    adapter: config.adapter.clone(),
+                    error: Some(error.clone()),
+                    generation,
+                    ..Default::default()
+                });
+                let delay = tokio::time::sleep(Duration::from_secs(5));
+                tokio::pin!(delay);
+                loop {
+                    tokio::select! {_=&mut delay=>break,request=rx.recv()=>{
+                        let Some(request)=request else{return;};
+                        if matches!(request.command,Command::Stop){let _=request.result.send(Ok(()));return;}
+                        let _=request.result.send(Err(error.clone()));
+                    }}
+                }
+                continue;
+            }
+        };
+        runtime.generation = generation;
+        let mut timer = tokio::time::interval(Duration::from_millis(500));
+        let failure = loop {
+            let ctl = runtime.channels[0].clone();
+            let intr = runtime.channels[1].clone();
+            let mut ctl_buffer = [0; 1024];
+            let mut intr_buffer = [0; 1024];
+            tokio::select! {
+                accepted=runtime.listeners[0].accept()=>{match accepted{Ok((socket,peer))=>{if let Err(e)=runtime.accept(0,socket,peer).await{break e;}},Err(e)=>break e.to_string()}}
+                accepted=runtime.listeners[1].accept()=>{match accepted{Ok((socket,peer))=>{if let Err(e)=runtime.accept(1,socket,peer).await{break e;}},Err(e)=>break e.to_string()}}
+                read=receive(ctl,&mut ctl_buffer)=>{match read{Ok(n)if n>0=>{if runtime.incoming(0,&ctl_buffer[..n]).await.is_err(){runtime.drop_channels();}},_=>runtime.drop_channels()}}
+                read=receive(intr,&mut intr_buffer)=>{match read{Ok(n)if n>0=>{if runtime.incoming(1,&intr_buffer[..n]).await.is_err(){runtime.drop_channels();}},_=>runtime.drop_channels()}}
+                _=timer.tick()=>{match runtime.status().await{Ok(status)=>{tx.send_if_modified(|old|{if *old!=status{*old=status;true}else{false}});},Err(e)=>break e}}
+                request=rx.recv()=>{
+                    let Some(request)=request else{let _=runtime.close().await;return;};
+                    if matches!(request.command,Command::Stop){let result=runtime.close().await;tx.send_replace(Status{adapter:config.adapter.clone(),..Default::default()});let _=request.result.send(result);return;}
+                    if request.expires<=Instant::now()||request.result.is_closed(){runtime.release().await;continue;}
+                    let action = matches!(&request.command, Command::Action(_));
+                    let result=runtime.execute(request.command).await;
+                    if result.is_err(){runtime.release().await;}
+                    if action {
+                        if let Ok(status) = runtime.status().await { tx.send_replace(status); }
+                    }
+                    let _=request.result.send(result);
+                }
+            }
+        };
+        let restore = runtime.close().await;
+        generation = runtime.generation.wrapping_add(1);
+        tx.send_replace(Status {
+            adapter: config.adapter.clone(),
+            error: Some(format!("{failure}; cleanup: {restore:?}")),
+            generation,
+            ..Default::default()
+        });
+        drop(runtime);
+        tokio::time::sleep(Duration::from_secs(2)).await;
+    }
+}
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn closing_pairing_preserves_completed_bonds_but_releases_unpaired_targets() {
+        let shared = Shared::new(Some("10:6F:D9:66:97:88".into()));
+        let mut state = shared.state.lock().unwrap();
+        state.pairing_until = Some(Instant::now() + Duration::from_secs(120));
+        state.close_pairing(true, None);
+        assert_eq!(state.peer.as_deref(), Some("10:6F:D9:66:97:88"));
+        assert!(state.pairing_until.is_none());
+        state.close_pairing(false, None);
+        assert!(state.peer.is_none());
+    }
+    #[test]
+    fn configuration_validation() {
+        let mut c = Config {
+            adapter: "hci0".into(),
+            name: "One-KVM".into(),
+            peer: None,
+        };
+        assert!(c.validate().is_ok());
+        c.adapter = "hci0;reboot".into();
+        assert!(c.validate().is_err());
+        c.adapter = "hci1".into();
+        c.peer = Some("bogus".into());
+        assert!(c.validate().is_err());
+    }
+    #[test]
+    fn peer_isolation() {
+        let state = Shared::new(Some("10:6F:D9:66:97:88".into()));
+        assert!(state.allowed("10:6F:D9:66:97:88".parse().unwrap()));
+        assert!(!state.allowed("10:6F:D9:66:97:89".parse().unwrap()));
+    }
+    #[test]
+    fn new_bond_without_agent_callback_completes_pairing() {
+        let shared = Shared::new(None);
+        let mut state = shared.state.lock().unwrap();
+        state.pairing_until = Some(Instant::now() + Duration::from_secs(120));
+        let peer = "10:6F:D9:66:97:88";
+        state.observe_bond(peer, false);
+        assert_eq!(state.peer, None);
+        state.observe_bond(peer, true);
+        assert_eq!(state.peer.as_deref(), Some(peer));
+        assert!(state.pairing_completed(true));
+        // A second computer cannot replace the one selected in this window.
+        state.observe_bond("10:6F:D9:66:97:89", true);
+        assert_eq!(state.peer.as_deref(), Some(peer));
+    }
+    #[test]
+    fn old_bond_does_not_finish_a_new_window() {
+        let peer = "10:6F:D9:66:97:88";
+        let shared = Shared::new(Some(peer.into()));
+        let mut state = shared.state.lock().unwrap();
+        state.pairing_until = Some(Instant::now() + Duration::from_secs(120));
+        state.bonded_before_pairing.insert(peer.into());
+        state.observe_bond(peer, true);
+        assert!(!state.pairing_completed(true));
+        state.peer = None;
+        state.observe_bond(peer, true);
+        assert_eq!(state.peer, None);
+    }
+    #[test]
+    fn bond_observation_respects_closed_window_and_pinned_peer() {
+        let peer = "10:6F:D9:66:97:88";
+        let shared = Shared::new(None);
+        let mut state = shared.state.lock().unwrap();
+        state.observe_bond(peer, true);
+        assert_eq!(state.peer, None);
+        state.pairing_until = Some(Instant::now() - Duration::from_secs(1));
+        state.observe_bond(peer, true);
+        assert_eq!(state.peer, None);
+        state.pairing_until = Some(Instant::now() + Duration::from_secs(120));
+        state.peer = Some("10:6F:D9:66:97:89".into());
+        state.observe_bond(peer, true);
+        assert_eq!(state.peer.as_deref(), Some("10:6F:D9:66:97:89"));
+    }
+}
+
+#[derive(Serialize)]
+pub struct AdapterInfo {
+    pub name: String,
+    pub address: String,
+    pub powered: bool,
+}
+pub async fn adapters() -> Result<Vec<AdapterInfo>, String> {
+    let session = Session::new().await.map_err(|e| e.to_string())?;
+    let mut output = vec![];
+    for name in session.adapter_names().await.map_err(|e| e.to_string())? {
+        let adapter = session.adapter(&name).map_err(|e| e.to_string())?;
+        output.push(AdapterInfo {
+            name,
+            address: adapter
+                .address()
+                .await
+                .map_err(|e| e.to_string())?
+                .to_string(),
+            powered: adapter.is_powered().await.map_err(|e| e.to_string())?,
+        });
+    }
+    Ok(output)
+}

libs/bluetooth-hid/src/protocol.rs

@@ -0,0 +1,267 @@
+//! Classic HIDP framing and report descriptor.
+use crate::Report;
+pub const MAP: &[u8] = &[
+    0x05, 0x01, 0x09, 0x06, 0xa1, 0x01, 0x85, 0x01, 0x05, 0x07, 0x19, 0xe0, 0x29, 0xe7, 0x15, 0x00,
+    0x25, 0x01, 0x75, 0x01, 0x95, 0x08, 0x81, 0x02, 0x95, 0x01, 0x75, 0x08, 0x81, 0x01, 0x95, 0x05,
+    0x75, 0x01, 0x05, 0x08, 0x19, 0x01, 0x29, 0x05, 0x91, 0x02, 0x95, 0x01, 0x75, 0x03, 0x91, 0x01,
+    0x95, 0x06, 0x75, 0x08, 0x15, 0x00, 0x25, 0x65, 0x05, 0x07, 0x19, 0x00, 0x29, 0x65, 0x81, 0x00,
+    0xc0, 0x05, 0x01, 0x09, 0x02, 0xa1, 0x01, 0x85, 0x02, 0x09, 0x01, 0xa1, 0x00, 0x05, 0x09, 0x19,
+    0x01, 0x29, 0x05, 0x15, 0x00, 0x25, 0x01, 0x95, 0x05, 0x75, 0x01, 0x81, 0x02, 0x95, 0x01, 0x75,
+    0x03, 0x81, 0x01, 0x05, 0x01, 0x09, 0x30, 0x09, 0x31, 0x09, 0x38, 0x15, 0x81, 0x25, 0x7f, 0x75,
+    0x08, 0x95, 0x03, 0x81, 0x06, 0xc0, 0xc0, 0x05, 0x0c, 0x09, 0x01, 0xa1, 0x01, 0x85, 0x03, 0x15,
+    0x00, 0x26, 0xff, 0x03, 0x19, 0x00, 0x2a, 0xff, 0x03, 0x75, 0x10, 0x95, 0x01, 0x81, 0x00, 0xc0,
+];
+
+pub const HID_UUID: &str = "00001124-0000-1000-8000-00805f9b34fb";
+pub fn sdp() -> String {
+    let hex: String = MAP.iter().map(|byte| format!("{byte:02x}")).collect();
+    format!(
+        r#"<?xml version="1.0"?>
+<record>
+  <attribute id="0x0001"><sequence><uuid value="0x1124"/></sequence></attribute>
+  <attribute id="0x0004"><sequence><sequence><uuid value="0x0100"/><uint16 value="0x0011"/></sequence><sequence><uuid value="0x0011"/></sequence></sequence></attribute>
+  <attribute id="0x0005"><sequence><uuid value="0x1002"/></sequence></attribute>
+  <attribute id="0x0006"><sequence><uint16 value="0x656e"/><uint16 value="0x006a"/><uint16 value="0x0100"/></sequence></attribute>
+  <attribute id="0x0009"><sequence><sequence><uuid value="0x1124"/><uint16 value="0x0100"/></sequence></sequence></attribute>
+  <attribute id="0x000d"><sequence><sequence><sequence><uuid value="0x0100"/><uint16 value="0x0013"/></sequence><sequence><uuid value="0x0011"/></sequence></sequence></sequence></attribute>
+  <attribute id="0x0100"><text value="One-KVM Keyboard and Mouse"/></attribute>
+  <attribute id="0x0101"><text value="Classic Bluetooth HID"/></attribute>
+  <attribute id="0x0102"><text value="One-KVM"/></attribute>
+  <attribute id="0x0200"><uint16 value="0x0100"/></attribute>
+  <attribute id="0x0201"><uint16 value="0x0111"/></attribute>
+  <attribute id="0x0202"><uint8 value="0xc0"/></attribute>
+  <attribute id="0x0203"><uint8 value="0x00"/></attribute>
+  <attribute id="0x0204"><boolean value="false"/></attribute>
+  <attribute id="0x0205"><boolean value="false"/></attribute>
+  <attribute id="0x0206"><sequence><sequence><uint8 value="0x22"/><text encoding="hex" value="{hex}"/></sequence></sequence></attribute>
+  <attribute id="0x0207"><sequence><sequence><uint16 value="0x0409"/><uint16 value="0x0100"/></sequence></sequence></attribute>
+  <attribute id="0x0209"><boolean value="false"/></attribute>
+  <attribute id="0x020a"><boolean value="false"/></attribute>
+  <attribute id="0x020b"><uint16 value="0x0100"/></attribute>
+  <attribute id="0x020c"><uint16 value="0x0c80"/></attribute>
+  <attribute id="0x020d"><boolean value="true"/></attribute>
+  <attribute id="0x020e"><boolean value="true"/></attribute>
+</record>"#
+    )
+}
+#[derive(Debug, Default)]
+pub struct HidProtocol {
+    pub boot: bool,
+    pub suspended: bool,
+    pub leds: u8,
+    pub keyboard: [u8; 8],
+    pub buttons: u8,
+    pub consumer: [u8; 2],
+}
+#[derive(Debug, Default, PartialEq, Eq)]
+pub struct ControlResult {
+    pub reply: Option<Vec<u8>>,
+    pub unplug: bool,
+    pub reset: bool,
+}
+impl HidProtocol {
+    pub fn input(&mut self, kind: Report, value: &[u8]) -> Result<Vec<u8>, String> {
+        if value.len() != kind.len() {
+            return Err("Invalid HID report length".into());
+        }
+        if self.suspended {
+            return Err("Bluetooth HID is suspended".into());
+        }
+        let mut packet = vec![0xa1, kind.id()];
+        match kind {
+            Report::Keyboard => {
+                self.keyboard.copy_from_slice(value);
+                packet.extend_from_slice(value);
+            }
+            Report::Mouse => {
+                self.buttons = value[0];
+                packet.extend_from_slice(&value[..if self.boot { 3 } else { 4 }]);
+                if self.boot {
+                    packet[2] &= 7;
+                }
+            }
+            Report::Consumer if !self.boot => {
+                self.consumer.copy_from_slice(value);
+                packet.extend_from_slice(value);
+            }
+            Report::Consumer => return Err("Consumer keys unavailable in boot protocol".into()),
+        }
+        Ok(packet)
+    }
+    pub fn release(&mut self) -> Vec<Vec<u8>> {
+        self.keyboard = [0; 8];
+        self.buttons = 0;
+        self.consumer = [0; 2];
+        let mut packets = vec![
+            vec![0xa1, 1, 0, 0, 0, 0, 0, 0, 0, 0],
+            if self.boot {
+                vec![0xa1, 2, 0, 0, 0]
+            } else {
+                vec![0xa1, 2, 0, 0, 0, 0]
+            },
+        ];
+        if !self.boot {
+            packets.push(vec![0xa1, 3, 0, 0]);
+        }
+        packets
+    }
+    pub fn output(&mut self, data: &[u8]) -> bool {
+        if data.len() == 3 && data[0] == 0xa2 && data[1] == 1 {
+            self.leds = data[2] & 0x1f;
+            true
+        } else {
+            false
+        }
+    }
+    pub fn control(&mut self, data: &[u8]) -> ControlResult {
+        let mut result = ControlResult::default();
+        let handshake = |code| ControlResult {
+            reply: Some(vec![code]),
+            ..Default::default()
+        };
+        let Some(&header) = data.first() else {
+            return handshake(4);
+        };
+        match header {
+            0x13 if data.len() == 1 => {
+                self.suspended = true;
+                result.reset = true;
+            }
+            0x14 if data.len() == 1 => {
+                self.suspended = false;
+                result.reset = true;
+            }
+            0x15 if data.len() == 1 => {
+                result.unplug = true;
+            }
+            0x11 | 0x12 if data.len() == 1 => {
+                self.suspended = false;
+                result.reset = true;
+            }
+            0x60 if data.len() == 1 => {
+                result.reply = Some(vec![0xa0, if self.boot { 0 } else { 1 }]);
+            }
+            0x70 | 0x71 if data.len() == 1 => {
+                self.boot = header == 0x70;
+                result.reply = Some(vec![0]);
+                result.reset = true;
+            }
+            0x52 if data.len() == 3 && data[1] == 1 => {
+                self.leds = data[2] & 0x1f;
+                return handshake(0);
+            }
+            0x41 | 0x49 | 0x42 | 0x4a => {
+                let sized = header & 8 != 0;
+                if data.len() != if sized { 4 } else { 2 } {
+                    return handshake(4);
+                }
+                let mut report = vec![0xa0 | (header & 3), data[1]];
+                match (header & 3, data[1]) {
+                    (1, 1) => report.extend(self.keyboard),
+                    (1, 2) => report.extend(if self.boot {
+                        vec![self.buttons & 7, 0, 0]
+                    } else {
+                        vec![self.buttons, 0, 0, 0]
+                    }),
+                    (1, 3) if !self.boot => report.extend(self.consumer),
+                    (2, 1) => report.push(self.leds),
+                    _ => return handshake(2),
+                }
+                if sized {
+                    report.truncate(1 + u16::from_le_bytes([data[2], data[3]]) as usize);
+                }
+                result.reply = Some(report);
+            }
+            _ => return handshake(3), // ERR_UNSUPPORTED_REQUEST
+        }
+        result
+    }
+}
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn classic_frames_and_boot_protocol() {
+        let mut hid = HidProtocol::default();
+        assert_eq!(
+            hid.input(Report::Keyboard, &[2, 0, 4, 0, 0, 0, 0, 0])
+                .unwrap(),
+            [0xa1, 1, 2, 0, 4, 0, 0, 0, 0, 0]
+        );
+        assert_eq!(hid.control(&[0x60]).reply.unwrap(), [0xa0, 1]);
+        assert_eq!(hid.control(&[0x70]).reply.unwrap(), [0]);
+        assert_eq!(
+            hid.input(Report::Mouse, &[0x1f, 127, 128, 1]).unwrap(),
+            [0xa1, 2, 7, 127, 128]
+        );
+        assert!(hid.input(Report::Consumer, &[0, 0]).is_err());
+        assert!(hid.input(Report::Keyboard, &[0]).is_err());
+    }
+    #[test]
+    fn led_read_write_and_errors() {
+        let mut hid = HidProtocol::default();
+        assert!(hid.output(&[0xa2, 1, 3]));
+        assert_eq!(hid.leds, 3);
+        assert_eq!(hid.control(&[0x42, 1]).reply.unwrap(), [0xa2, 1, 3]);
+        assert_eq!(hid.control(&[0x52, 1, 2]).reply.unwrap(), [0]);
+        assert_eq!(hid.leds, 2);
+        assert_eq!(hid.control(&[0x41, 99]).reply.unwrap(), [2]);
+        assert_eq!(hid.control(&[0x41]).reply.unwrap(), [4]);
+        assert_eq!(hid.control(&[0x90, 0]).reply.unwrap(), [3]);
+        assert_eq!(
+            hid.control(&[0x49, 1, 3, 0]).reply.unwrap(),
+            [0xa1, 1, 0, 0]
+        );
+    }
+    #[test]
+    fn suspend_reset_and_virtual_unplug() {
+        let mut hid = HidProtocol::default();
+        assert!(hid.control(&[0x13]).reset);
+        assert!(hid.input(Report::Mouse, &[0; 4]).is_err());
+        assert!(hid.control(&[0x14]).reset);
+        assert!(hid.input(Report::Mouse, &[0; 4]).is_ok());
+        assert!(hid.control(&[0x15]).unplug);
+        hid.keyboard[2] = 4;
+        hid.buttons = 1;
+        assert_eq!(hid.release().len(), 3);
+        assert_eq!(hid.keyboard, [0; 8]);
+        assert_eq!(hid.buttons, 0);
+    }
+    #[test]
+    fn sdp_describes_both_classic_channels() {
+        let record = sdp();
+        assert!(record.contains("uuid value=\"0x1124\""));
+        assert!(record.contains("uint16 value=\"0x0011\""));
+        assert!(record.contains("uint16 value=\"0x0013\""));
+        assert!(!record.contains("0x1812"));
+    }
+    #[test]
+    fn descriptor_report_sizes() {
+        let (mut pos, mut size, mut count, mut id, mut depth) = (0, 0, 0, 0, 0);
+        let mut input = [0; 4];
+        let mut output = [0; 4];
+        while pos < MAP.len() {
+            let prefix = MAP[pos];
+            pos += 1;
+            let length = [0, 1, 2, 4][(prefix & 3) as usize];
+            let mut value = 0;
+            for i in 0..length {
+                value |= (MAP[pos + i] as usize) << (8 * i);
+            }
+            pos += length;
+            match ((prefix >> 2) & 3, prefix >> 4) {
+                (1, 7) => size = value,
+                (1, 8) => id = value,
+                (1, 9) => count = value,
+                (0, 8) => input[id] += size * count,
+                (0, 9) => output[id] += size * count,
+                (0, 10) => depth += 1,
+                (0, 12) => depth -= 1,
+                _ => {}
+            }
+        }
+        assert_eq!(depth, 0);
+        assert_eq!(input, [0, 64, 32, 16]);
+        assert_eq!(output, [0, 8, 0, 0]);
+    }
+}

libs/dtls/Cargo.toml

@@ -0,0 +1,155 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2021"
+name = "dtls"
+version = "0.17.2"
+authors = ["Rain Liu <yliu@webrtc.rs>"]
+build = false
+autolib = false
+autobins = false
+autoexamples = false
+autotests = false
+autobenches = false
+description = "A pure Rust implementation of DTLS"
+homepage = "https://webrtc.rs"
+documentation = "https://docs.rs/dtls"
+readme = "README.md"
+license = "MIT/Apache-2.0"
+repository = "https://github.com/webrtc-rs/webrtc/tree/master/dtls"
+
+[features]
+pem = ["dep:pem"]
+
+[lib]
+name = "dtls"
+path = "src/lib.rs"
+
+[dependencies.aes]
+version = "0.8"
+
+[dependencies.aes-gcm]
+version = "0.10"
+
+[dependencies.async-trait]
+version = "0.1"
+
+[dependencies.bytecheck]
+version = "0.8"
+
+[dependencies.byteorder]
+version = "1"
+
+[dependencies.cbc]
+version = "0.1"
+features = [
+    "block-padding",
+    "alloc",
+]
+
+[dependencies.ccm]
+version = "0.5"
+
+[dependencies.chacha20poly1305]
+version = "0.10.1"
+
+[dependencies.der-parser]
+version = "9.0"
+
+[dependencies.hmac]
+version = "0.12"
+
+[dependencies.log]
+version = "0.4"
+
+[dependencies.p256]
+version = "0.13"
+features = [
+    "default",
+    "ecdh",
+    "ecdsa",
+]
+
+[dependencies.p384]
+version = "0.13"
+
+[dependencies.pem]
+version = "3"
+optional = true
+
+[dependencies.portable-atomic]
+version = "1.6"
+
+[dependencies.rand]
+version = "0.9"
+
+[dependencies.rand_core]
+version = "0.6"
+
+[dependencies.rcgen]
+version = "0.13"
+
+[dependencies.ring]
+version = "0.17.14"
+
+[dependencies.rkyv]
+version = "0.8"
+
+[dependencies.openssl]
+version = "0.10"
+features = ["vendored"]
+
+[dependencies.rustls-pki-types]
+version = "1"
+
+[dependencies.sec1]
+version = "0.7"
+features = ["std"]
+
+[dependencies.sha1]
+version = "0.10"
+
+[dependencies.sha2]
+version = "0.10"
+
+[dependencies.thiserror]
+version = "1"
+
+[dependencies.tokio]
+version = "1.32.0"
+features = [
+    "fs",
+    "io-util",
+    "io-std",
+    "macros",
+    "net",
+    "parking_lot",
+    "rt",
+    "rt-multi-thread",
+    "sync",
+    "time",
+]
+
+[dependencies.util]
+version = "0.17.1"
+features = ["conn"]
+default-features = false
+package = "webrtc-util"
+
+[dependencies.x25519-dalek]
+version = "2"
+features = ["static_secrets"]
+
+[dependencies.x509-parser]
+version = "0.16"
+
+[dev-dependencies]

libs/dtls/LICENSE-APACHE

@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+   "License" shall mean the terms and conditions for use, reproduction,
+   and distribution as defined by Sections 1 through 9 of this document.
+
+   "Licensor" shall mean the copyright owner or entity authorized by
+   the copyright owner that is granting the License.
+
+   "Legal Entity" shall mean the union of the acting entity and all
+   other entities that control, are controlled by, or are under common
+   control with that entity. For the purposes of this definition,
+   "control" means (i) the power, direct or indirect, to cause the
+   direction or management of such entity, whether by contract or
+   otherwise, or (ii) ownership of fifty percent (50%) or more of the
+   outstanding shares, or (iii) beneficial ownership of such entity.
+
+   "You" (or "Your") shall mean an individual or Legal Entity
+   exercising permissions granted by this License.
+
+   "Source" form shall mean the preferred form for making modifications,
+   including but not limited to software source code, documentation
+   source, and configuration files.
+
+   "Object" form shall mean any form resulting from mechanical
+   transformation or translation of a Source form, including but
+   not limited to compiled object code, generated documentation,
+   and conversions to other media types.
+
+   "Work" shall mean the work of authorship, whether in Source or
+   Object form, made available under the License, as indicated by a
+   copyright notice that is included in or attached to the work
+   (an example is provided in the Appendix below).
+
+   "Derivative Works" shall mean any work, whether in Source or Object
+   form, that is based on (or derived from) the Work and for which the
+   editorial revisions, annotations, elaborations, or other modifications
+   represent, as a whole, an original work of authorship. For the purposes
+   of this License, Derivative Works shall not include works that remain
+   separable from, or merely link (or bind by name) to the interfaces of,
+   the Work and Derivative Works thereof.
+
+   "Contribution" shall mean any work of authorship, including
+   the original version of the Work and any modifications or additions
+   to that Work or Derivative Works thereof, that is intentionally
+   submitted to Licensor for inclusion in the Work by the copyright owner
+   or by an individual or Legal Entity authorized to submit on behalf of
+   the copyright owner. For the purposes of this definition, "submitted"
+   means any form of electronic, verbal, or written communication sent
+   to the Licensor or its representatives, including but not limited to
+   communication on electronic mailing lists, source code control systems,
+   and issue tracking systems that are managed by, or on behalf of, the
+   Licensor for the purpose of discussing and improving the Work, but
+   excluding communication that is conspicuously marked or otherwise
+   designated in writing by the copyright owner as "Not a Contribution."
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+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

libs/dtls/LICENSE-MIT

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 WebRTC.rs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

libs/dtls/README.md

@@ -0,0 +1,20 @@
+# DTLS certificate verification backend
+
+This directory contains `dtls` 0.17.2 from the crates.io release of webrtc-rs.
+The original MIT and Apache-2.0 licenses are preserved.
+
+One-KVM patches only certificate-chain verification and its configuration to
+use vendored OpenSSL instead of rustls/WebPKI. DTLS flights, record protection,
+certificate signatures, SRTP negotiation and the application fingerprint check
+remain unchanged. `rustls-pki-types` remains a certificate-data representation,
+not a TLS implementation.
+
+`certificate_verifier.rs` implements trust-anchor, purpose, certificate-validity
+and DNS/IP identity checks. Server names do not fall back to the certificate
+subject, and partial-label wildcards are rejected. No trust checks are skipped
+by this backend. The upstream application-controlled `insecure_skip_verify`
+policy is preserved, including WebRTC's separate certificate fingerprint check.
+Authentication security level 2 rejects weak RSA keys and SHA-1 leaf signatures.
+
+Run `cargo test --manifest-path libs/dtls/Cargo.toml --lib` after updating this
+fork, and verify the application dependency tree contains no `rustls` engine.

libs/dtls/src/alert/alert_test.rs

@@ -0,0 +1,50 @@
+use std::io::{BufReader, BufWriter};
+
+use super::*;
+use crate::error::Error;
+
+#[test]
+fn test_alert() -> Result<()> {
+    let tests = vec![
+        (
+            "Valid Alert",
+            vec![0x02, 0x0A],
+            Alert {
+                alert_level: AlertLevel::Fatal,
+                alert_description: AlertDescription::UnexpectedMessage,
+            },
+            None,
+        ),
+        (
+            "Invalid alert length",
+            vec![0x00],
+            Alert {
+                alert_level: AlertLevel::Invalid,
+                alert_description: AlertDescription::Invalid,
+            },
+            Some(Error::Other("io".to_owned())),
+        ),
+    ];
+
+    for (name, data, wanted, unmarshal_error) in tests {
+        let mut reader = BufReader::new(data.as_slice());
+        let result = Alert::unmarshal(&mut reader);
+
+        if let Some(err) = unmarshal_error {
+            assert!(result.is_err(), "{name} expected error: {err}");
+        } else if let Ok(alert) = result {
+            assert_eq!(wanted, alert, "{name} expected {wanted}, but got {alert}");
+
+            let mut data2: Vec<u8> = vec![];
+            {
+                let mut writer = BufWriter::<&mut Vec<u8>>::new(data2.as_mut());
+                alert.marshal(&mut writer)?;
+            }
+            assert_eq!(data, data2, "{name} expected {data:?}, but got {data2:?}");
+        } else {
+            assert!(result.is_ok(), "{name} expected Ok, but has error");
+        }
+    }
+
+    Ok(())
+}

libs/dtls/src/alert/mod.rs

@@ -0,0 +1,189 @@
+#[cfg(test)]
+mod alert_test;
+
+use std::fmt;
+use std::io::{Read, Write};
+
+use byteorder::{ReadBytesExt, WriteBytesExt};
+
+use super::content::*;
+use crate::error::Result;
+
+#[derive(Copy, Clone, PartialEq, Debug)]
+pub(crate) enum AlertLevel {
+    Warning = 1,
+    Fatal = 2,
+    Invalid,
+}
+
+impl fmt::Display for AlertLevel {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match *self {
+            AlertLevel::Warning => write!(f, "LevelWarning"),
+            AlertLevel::Fatal => write!(f, "LevelFatal"),
+            _ => write!(f, "Invalid alert level"),
+        }
+    }
+}
+
+impl From<u8> for AlertLevel {
+    fn from(val: u8) -> Self {
+        match val {
+            1 => AlertLevel::Warning,
+            2 => AlertLevel::Fatal,
+            _ => AlertLevel::Invalid,
+        }
+    }
+}
+
+#[derive(Copy, Clone, PartialEq, Debug)]
+pub(crate) enum AlertDescription {
+    CloseNotify = 0,
+    UnexpectedMessage = 10,
+    BadRecordMac = 20,
+    DecryptionFailed = 21,
+    RecordOverflow = 22,
+    DecompressionFailure = 30,
+    HandshakeFailure = 40,
+    NoCertificate = 41,
+    BadCertificate = 42,
+    UnsupportedCertificate = 43,
+    CertificateRevoked = 44,
+    CertificateExpired = 45,
+    CertificateUnknown = 46,
+    IllegalParameter = 47,
+    UnknownCa = 48,
+    AccessDenied = 49,
+    DecodeError = 50,
+    DecryptError = 51,
+    ExportRestriction = 60,
+    ProtocolVersion = 70,
+    InsufficientSecurity = 71,
+    InternalError = 80,
+    UserCanceled = 90,
+    NoRenegotiation = 100,
+    UnsupportedExtension = 110,
+    UnknownPskIdentity = 115,
+    Invalid,
+}
+
+impl fmt::Display for AlertDescription {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match *self {
+            AlertDescription::CloseNotify => write!(f, "CloseNotify"),
+            AlertDescription::UnexpectedMessage => write!(f, "UnexpectedMessage"),
+            AlertDescription::BadRecordMac => write!(f, "BadRecordMac"),
+            AlertDescription::DecryptionFailed => write!(f, "DecryptionFailed"),
+            AlertDescription::RecordOverflow => write!(f, "RecordOverflow"),
+            AlertDescription::DecompressionFailure => write!(f, "DecompressionFailure"),
+            AlertDescription::HandshakeFailure => write!(f, "HandshakeFailure"),
+            AlertDescription::NoCertificate => write!(f, "NoCertificate"),
+            AlertDescription::BadCertificate => write!(f, "BadCertificate"),
+            AlertDescription::UnsupportedCertificate => write!(f, "UnsupportedCertificate"),
+            AlertDescription::CertificateRevoked => write!(f, "CertificateRevoked"),
+            AlertDescription::CertificateExpired => write!(f, "CertificateExpired"),
+            AlertDescription::CertificateUnknown => write!(f, "CertificateUnknown"),
+            AlertDescription::IllegalParameter => write!(f, "IllegalParameter"),
+            AlertDescription::UnknownCa => write!(f, "UnknownCA"),
+            AlertDescription::AccessDenied => write!(f, "AccessDenied"),
+            AlertDescription::DecodeError => write!(f, "DecodeError"),
+            AlertDescription::DecryptError => write!(f, "DecryptError"),
+            AlertDescription::ExportRestriction => write!(f, "ExportRestriction"),
+            AlertDescription::ProtocolVersion => write!(f, "ProtocolVersion"),
+            AlertDescription::InsufficientSecurity => write!(f, "InsufficientSecurity"),
+            AlertDescription::InternalError => write!(f, "InternalError"),
+            AlertDescription::UserCanceled => write!(f, "UserCanceled"),
+            AlertDescription::NoRenegotiation => write!(f, "NoRenegotiation"),
+            AlertDescription::UnsupportedExtension => write!(f, "UnsupportedExtension"),
+            AlertDescription::UnknownPskIdentity => write!(f, "UnknownPskIdentity"),
+            _ => write!(f, "Invalid alert description"),
+        }
+    }
+}
+
+impl From<u8> for AlertDescription {
+    fn from(val: u8) -> Self {
+        match val {
+            0 => AlertDescription::CloseNotify,
+            10 => AlertDescription::UnexpectedMessage,
+            20 => AlertDescription::BadRecordMac,
+            21 => AlertDescription::DecryptionFailed,
+            22 => AlertDescription::RecordOverflow,
+            30 => AlertDescription::DecompressionFailure,
+            40 => AlertDescription::HandshakeFailure,
+            41 => AlertDescription::NoCertificate,
+            42 => AlertDescription::BadCertificate,
+            43 => AlertDescription::UnsupportedCertificate,
+            44 => AlertDescription::CertificateRevoked,
+            45 => AlertDescription::CertificateExpired,
+            46 => AlertDescription::CertificateUnknown,
+            47 => AlertDescription::IllegalParameter,
+            48 => AlertDescription::UnknownCa,
+            49 => AlertDescription::AccessDenied,
+            50 => AlertDescription::DecodeError,
+            51 => AlertDescription::DecryptError,
+            60 => AlertDescription::ExportRestriction,
+            70 => AlertDescription::ProtocolVersion,
+            71 => AlertDescription::InsufficientSecurity,
+            80 => AlertDescription::InternalError,
+            90 => AlertDescription::UserCanceled,
+            100 => AlertDescription::NoRenegotiation,
+            110 => AlertDescription::UnsupportedExtension,
+            115 => AlertDescription::UnknownPskIdentity,
+            _ => AlertDescription::Invalid,
+        }
+    }
+}
+
+// One of the content types supported by the TLS record layer is the
+// alert type.  Alert messages convey the severity of the message
+// (warning or fatal) and a description of the alert.  Alert messages
+// with a level of fatal result in the immediate termination of the
+// connection.  In this case, other connections corresponding to the
+// session may continue, but the session identifier MUST be invalidated,
+// preventing the failed session from being used to establish new
+// connections.  Like other messages, alert messages are encrypted and
+// compressed, as specified by the current connection state.
+/// ## Specifications
+///
+/// * [RFC 5246 §7.2]
+///
+/// [RFC 5246 §7.2]: https://tools.ietf.org/html/rfc5246#section-7.2
+#[derive(Copy, Clone, PartialEq, Debug)]
+pub struct Alert {
+    pub(crate) alert_level: AlertLevel,
+    pub(crate) alert_description: AlertDescription,
+}
+
+impl fmt::Display for Alert {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "Alert {}: {}", self.alert_level, self.alert_description)
+    }
+}
+
+impl Alert {
+    pub fn content_type(&self) -> ContentType {
+        ContentType::Alert
+    }
+
+    pub fn size(&self) -> usize {
+        2
+    }
+
+    pub fn marshal<W: Write>(&self, writer: &mut W) -> Result<()> {
+        writer.write_u8(self.alert_level as u8)?;
+        writer.write_u8(self.alert_description as u8)?;
+
+        Ok(writer.flush()?)
+    }
+
+    pub fn unmarshal<R: Read>(reader: &mut R) -> Result<Self> {
+        let alert_level = reader.read_u8()?.into();
+        let alert_description = reader.read_u8()?.into();
+
+        Ok(Alert {
+            alert_level,
+            alert_description,
+        })
+    }
+}

libs/dtls/src/application_data.rs

@@ -0,0 +1,41 @@
+use std::io::{Read, Write};
+
+use super::content::*;
+use crate::error::Result;
+
+// Application data messages are carried by the record layer and are
+// fragmented, compressed, and encrypted based on the current connection
+// state.  The messages are treated as transparent data to the record
+// layer.
+/// ## Specifications
+///
+/// * [RFC 5246 §10]
+///
+/// [RFC 5246 §10]: https://tools.ietf.org/html/rfc5246#section-10
+#[derive(Clone, PartialEq, Eq, Debug)]
+pub struct ApplicationData {
+    pub data: Vec<u8>,
+}
+
+impl ApplicationData {
+    pub fn content_type(&self) -> ContentType {
+        ContentType::ApplicationData
+    }
+
+    pub fn size(&self) -> usize {
+        self.data.len()
+    }
+
+    pub fn marshal<W: Write>(&self, writer: &mut W) -> Result<()> {
+        writer.write_all(&self.data)?;
+
+        Ok(writer.flush()?)
+    }
+
+    pub fn unmarshal<R: Read>(reader: &mut R) -> Result<Self> {
+        let mut data: Vec<u8> = vec![];
+        reader.read_to_end(&mut data)?;
+
+        Ok(ApplicationData { data })
+    }
+}

libs/dtls/src/certificate_verifier.rs

@@ -0,0 +1,378 @@
+use openssl::stack::Stack;
+use openssl::x509::store::X509StoreBuilder;
+use openssl::x509::verify::{X509CheckFlags, X509VerifyParam};
+use openssl::x509::{X509PurposeId, X509StoreContext, X509};
+use rustls_pki_types::{CertificateDer, ServerName};
+
+use crate::error::{Error, Result};
+
+#[derive(Clone, Debug, Default)]
+pub struct RootCertStore {
+    certificates: Vec<X509>,
+}
+
+impl RootCertStore {
+    pub fn empty() -> Self {
+        Self::default()
+    }
+
+    pub fn add(&mut self, certificate: CertificateDer<'_>) -> Result<()> {
+        self.certificates
+            .push(X509::from_der(certificate.as_ref()).map_err(openssl_error)?);
+        Ok(())
+    }
+}
+
+pub(crate) struct CertificateVerifier {
+    roots: RootCertStore,
+}
+
+impl CertificateVerifier {
+    pub(crate) fn new(roots: RootCertStore) -> Self {
+        Self { roots }
+    }
+
+    pub(crate) fn verify_client_cert(
+        &self,
+        end_entity: &CertificateDer<'_>,
+        intermediates: &[CertificateDer<'_>],
+    ) -> Result<()> {
+        self.verify(end_entity, intermediates, X509PurposeId::SSL_CLIENT, None)
+    }
+
+    pub(crate) fn verify_server_cert(
+        &self,
+        end_entity: &CertificateDer<'_>,
+        intermediates: &[CertificateDer<'_>],
+        server_name: &str,
+    ) -> Result<()> {
+        ServerName::try_from(server_name).map_err(|error| Error::Other(error.to_string()))?;
+        self.verify(
+            end_entity,
+            intermediates,
+            X509PurposeId::SSL_SERVER,
+            Some(server_name),
+        )
+    }
+
+    fn verify(
+        &self,
+        end_entity: &CertificateDer<'_>,
+        intermediates: &[CertificateDer<'_>],
+        purpose: X509PurposeId,
+        server_name: Option<&str>,
+    ) -> Result<()> {
+        let leaf = X509::from_der(end_entity.as_ref()).map_err(openssl_error)?;
+        let mut chain = Stack::new().map_err(openssl_error)?;
+        for certificate in intermediates {
+            chain
+                .push(X509::from_der(certificate.as_ref()).map_err(openssl_error)?)
+                .map_err(openssl_error)?;
+        }
+        let mut parameters = X509VerifyParam::new().map_err(openssl_error)?;
+        parameters.set_auth_level(2);
+        parameters.set_purpose(purpose).map_err(openssl_error)?;
+        parameters.set_hostflags(
+            X509CheckFlags::NO_PARTIAL_WILDCARDS | X509CheckFlags::NEVER_CHECK_SUBJECT,
+        );
+        if let Some(server_name) = server_name {
+            if let Ok(address) = server_name.parse() {
+                parameters.set_ip(address).map_err(openssl_error)?;
+            } else {
+                parameters.set_host(server_name).map_err(openssl_error)?;
+            }
+        }
+        let mut store = X509StoreBuilder::new().map_err(openssl_error)?;
+        store.set_param(&parameters).map_err(openssl_error)?;
+        for certificate in &self.roots.certificates {
+            store.add_cert(certificate.clone()).map_err(openssl_error)?;
+        }
+        let store = store.build();
+        let mut context = X509StoreContext::new().map_err(openssl_error)?;
+        context
+            .init(&store, &leaf, &chain, |context| {
+                if context.verify_cert()? {
+                    Ok(None)
+                } else {
+                    Ok(Some(context.error().to_string()))
+                }
+            })
+            .map_err(openssl_error)?
+            .map_or(Ok(()), |error| Err(Error::Other(error)))
+    }
+}
+
+fn openssl_error(error: openssl::error::ErrorStack) -> Error {
+    Error::Other(error.to_string())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use rcgen::{BasicConstraints, CertificateParams, ExtendedKeyUsagePurpose, IsCa, KeyPair};
+
+    fn signed_leaf(
+        parameters: CertificateParams,
+    ) -> (CertificateVerifier, CertificateDer<'static>) {
+        let mut issuer_parameters = CertificateParams::new(Vec::<String>::new()).unwrap();
+        issuer_parameters
+            .distinguished_name
+            .push(rcgen::DnType::CommonName, "test root");
+        issuer_parameters.is_ca = IsCa::Ca(BasicConstraints::Unconstrained);
+        let issuer_key = KeyPair::generate().unwrap();
+        let issuer = issuer_parameters.self_signed(&issuer_key).unwrap();
+        let leaf_key = KeyPair::generate().unwrap();
+        let leaf = parameters
+            .signed_by(&leaf_key, &issuer, &issuer_key)
+            .unwrap();
+        let mut roots = RootCertStore::empty();
+        roots.add(issuer.der().clone()).unwrap();
+        (CertificateVerifier::new(roots), leaf.der().clone())
+    }
+
+    #[test]
+    fn trusted_server_matches_dns_and_ip_subject_alternative_names() {
+        let parameters =
+            CertificateParams::new(vec!["localhost".into(), "127.0.0.1".into()]).unwrap();
+        let (verifier, leaf) = signed_leaf(parameters);
+        verifier
+            .verify_server_cert(&leaf, &[], "localhost")
+            .unwrap();
+        assert!(verifier.verify_server_cert(&leaf, &[], "127.0.0.1").is_ok());
+        assert!(verifier
+            .verify_server_cert(&leaf, &[], "wrong.local")
+            .is_err());
+        assert!(verifier
+            .verify_server_cert(&leaf, &[], "127.0.0.2")
+            .is_err());
+        assert!(verifier.verify_server_cert(&leaf, &[], "").is_err());
+    }
+
+    #[test]
+    fn rejects_untrusted_and_tampered_certificates() {
+        let (verifier, leaf) =
+            signed_leaf(CertificateParams::new(vec!["localhost".into()]).unwrap());
+        let untrusted = CertificateVerifier::new(RootCertStore::empty());
+        assert!(untrusted
+            .verify_server_cert(&leaf, &[], "localhost")
+            .is_err());
+        let mut tampered = leaf.as_ref().to_vec();
+        let last = tampered.len() - 1;
+        tampered[last] ^= 1;
+        assert!(verifier
+            .verify_server_cert(&CertificateDer::from(tampered), &[], "localhost")
+            .is_err());
+        assert!(verifier
+            .verify_server_cert(&CertificateDer::from(vec![0]), &[], "localhost")
+            .is_err());
+    }
+
+    #[test]
+    fn rejects_expired_certificate_and_wrong_extended_key_usage() {
+        let mut expired = CertificateParams::new(vec!["localhost".into()]).unwrap();
+        expired.not_before = rcgen::date_time_ymd(2019, 1, 1);
+        expired.not_after = rcgen::date_time_ymd(2020, 1, 1);
+        let (verifier, leaf) = signed_leaf(expired);
+        assert!(verifier
+            .verify_server_cert(&leaf, &[], "localhost")
+            .is_err());
+        let mut server_only = CertificateParams::new(vec!["localhost".into()]).unwrap();
+        server_only.extended_key_usages = vec![ExtendedKeyUsagePurpose::ServerAuth];
+        let (verifier, leaf) = signed_leaf(server_only);
+        verifier
+            .verify_server_cert(&leaf, &[], "localhost")
+            .unwrap();
+        assert!(verifier.verify_client_cert(&leaf, &[]).is_err());
+        let mut client_only = CertificateParams::new(vec!["localhost".into()]).unwrap();
+        client_only.extended_key_usages = vec![ExtendedKeyUsagePurpose::ClientAuth];
+        let (verifier, leaf) = signed_leaf(client_only);
+        assert!(verifier.verify_client_cert(&leaf, &[]).is_ok());
+        assert!(verifier
+            .verify_server_cert(&leaf, &[], "localhost")
+            .is_err());
+    }
+
+    #[test]
+    fn does_not_fall_back_to_common_name_or_partial_wildcard() {
+        let mut parameters = CertificateParams::new(Vec::<String>::new()).unwrap();
+        parameters
+            .distinguished_name
+            .push(rcgen::DnType::CommonName, "localhost");
+        let (verifier, leaf) = signed_leaf(parameters);
+        assert!(verifier
+            .verify_server_cert(&leaf, &[], "localhost")
+            .is_err());
+        let (verifier, leaf) =
+            signed_leaf(CertificateParams::new(vec!["local*.example".into()]).unwrap());
+        assert!(verifier
+            .verify_server_cert(&leaf, &[], "localhost.example")
+            .is_err());
+    }
+
+    #[test]
+    fn rejects_weak_rsa_keys_and_sha1_leaf_signatures() {
+        use openssl::asn1::Asn1Time;
+        use openssl::hash::MessageDigest;
+        use openssl::pkey::PKey;
+        use openssl::rsa::Rsa;
+        use openssl::x509::extension::{BasicConstraints, SubjectAlternativeName};
+        use openssl::x509::X509NameBuilder;
+
+        let issuer_key = PKey::from_rsa(Rsa::generate(2048).unwrap()).unwrap();
+        let mut issuer_name = X509NameBuilder::new().unwrap();
+        issuer_name
+            .append_entry_by_text("CN", "strong root")
+            .unwrap();
+        let issuer_name = issuer_name.build();
+        let mut issuer = X509::builder().unwrap();
+        issuer.set_version(2).unwrap();
+        issuer.set_subject_name(&issuer_name).unwrap();
+        issuer.set_issuer_name(&issuer_name).unwrap();
+        issuer.set_pubkey(&issuer_key).unwrap();
+        issuer
+            .set_not_before(&Asn1Time::days_from_now(0).unwrap())
+            .unwrap();
+        issuer
+            .set_not_after(&Asn1Time::days_from_now(1).unwrap())
+            .unwrap();
+        issuer
+            .append_extension(BasicConstraints::new().critical().ca().build().unwrap())
+            .unwrap();
+        issuer.sign(&issuer_key, MessageDigest::sha256()).unwrap();
+        let issuer = issuer.build();
+        let mut roots = RootCertStore::empty();
+        roots
+            .add(CertificateDer::from(issuer.to_der().unwrap()))
+            .unwrap();
+        let verifier = CertificateVerifier::new(roots);
+        for (bits, digest, expected) in [
+            (2048, MessageDigest::sha256(), true),
+            (1024, MessageDigest::sha256(), false),
+            (2048, MessageDigest::sha1(), false),
+        ] {
+            let leaf_key = PKey::from_rsa(Rsa::generate(bits).unwrap()).unwrap();
+            let mut leaf_name = X509NameBuilder::new().unwrap();
+            leaf_name.append_entry_by_text("CN", "localhost").unwrap();
+            let leaf_name = leaf_name.build();
+            let mut leaf = X509::builder().unwrap();
+            leaf.set_version(2).unwrap();
+            leaf.set_subject_name(&leaf_name).unwrap();
+            leaf.set_issuer_name(issuer.subject_name()).unwrap();
+            leaf.set_pubkey(&leaf_key).unwrap();
+            leaf.set_not_before(&Asn1Time::days_from_now(0).unwrap())
+                .unwrap();
+            leaf.set_not_after(&Asn1Time::days_from_now(1).unwrap())
+                .unwrap();
+            let names = SubjectAlternativeName::new()
+                .dns("localhost")
+                .build(&leaf.x509v3_context(Some(&issuer), None))
+                .unwrap();
+            leaf.append_extension(names).unwrap();
+            leaf.sign(&issuer_key, digest).unwrap();
+            let leaf = CertificateDer::from(leaf.build().to_der().unwrap());
+            assert_eq!(
+                verifier.verify_server_cert(&leaf, &[], "localhost").is_ok(),
+                expected
+            );
+        }
+    }
+
+    #[tokio::test]
+    async fn dtls_handshake_preserves_mutual_certificate_authentication() {
+        use crate::config::{ClientAuthType, Config};
+        use crate::conn::DTLSConn;
+        use crate::crypto::Certificate;
+        use std::sync::Arc;
+        use std::time::Duration;
+
+        let client_certificate =
+            Certificate::generate_self_signed(vec!["localhost".into()]).unwrap();
+        let server_certificate =
+            Certificate::generate_self_signed(vec!["localhost".into()]).unwrap();
+        let mut client_roots = RootCertStore::empty();
+        client_roots
+            .add(server_certificate.certificate[0].clone())
+            .unwrap();
+        let mut server_roots = RootCertStore::empty();
+        server_roots
+            .add(client_certificate.certificate[0].clone())
+            .unwrap();
+        let client_socket = Arc::new(tokio::net::UdpSocket::bind("127.0.0.1:0").await.unwrap());
+        let server_socket = Arc::new(tokio::net::UdpSocket::bind("127.0.0.1:0").await.unwrap());
+        client_socket
+            .connect(server_socket.local_addr().unwrap())
+            .await
+            .unwrap();
+        server_socket
+            .connect(client_socket.local_addr().unwrap())
+            .await
+            .unwrap();
+        let client_config = Config {
+            certificates: vec![client_certificate],
+            roots_cas: client_roots,
+            server_name: "localhost".into(),
+            ..Default::default()
+        };
+        let server_config = Config {
+            certificates: vec![server_certificate],
+            client_cas: server_roots,
+            client_auth: ClientAuthType::RequireAndVerifyClientCert,
+            ..Default::default()
+        };
+        let (client, server) = tokio::time::timeout(Duration::from_secs(10), async {
+            tokio::try_join!(
+                DTLSConn::new(client_socket, client_config, true, None),
+                DTLSConn::new(server_socket, server_config, false, None),
+            )
+        })
+        .await
+        .unwrap()
+        .unwrap();
+        client
+            .write(b"authenticated", Some(Duration::from_secs(5)))
+            .await
+            .unwrap();
+        let mut buffer = [0; 64];
+        let count = server
+            .read(&mut buffer, Some(Duration::from_secs(5)))
+            .await
+            .unwrap();
+        assert_eq!(&buffer[..count], b"authenticated");
+        client.close().await.unwrap();
+        server.close().await.unwrap();
+    }
+
+    #[test]
+    fn verifies_intermediate_chain_without_implicitly_trusting_it() {
+        let mut root_parameters = CertificateParams::new(Vec::<String>::new()).unwrap();
+        root_parameters
+            .distinguished_name
+            .push(rcgen::DnType::CommonName, "test root");
+        root_parameters.is_ca = IsCa::Ca(BasicConstraints::Unconstrained);
+        let root_key = KeyPair::generate().unwrap();
+        let root = root_parameters.self_signed(&root_key).unwrap();
+        let mut intermediate_parameters = CertificateParams::new(Vec::<String>::new()).unwrap();
+        intermediate_parameters
+            .distinguished_name
+            .push(rcgen::DnType::CommonName, "test intermediate");
+        intermediate_parameters.is_ca = IsCa::Ca(BasicConstraints::Constrained(0));
+        let intermediate_key = KeyPair::generate().unwrap();
+        let intermediate = intermediate_parameters
+            .signed_by(&intermediate_key, &root, &root_key)
+            .unwrap();
+        let leaf_key = KeyPair::generate().unwrap();
+        let leaf = CertificateParams::new(vec!["localhost".into()])
+            .unwrap()
+            .signed_by(&leaf_key, &intermediate, &intermediate_key)
+            .unwrap();
+        let mut roots = RootCertStore::empty();
+        roots.add(root.der().clone()).unwrap();
+        let verifier = CertificateVerifier::new(roots);
+        assert!(verifier
+            .verify_server_cert(leaf.der(), &[intermediate.der().clone()], "localhost")
+            .is_ok());
+        assert!(verifier
+            .verify_server_cert(leaf.der(), &[], "localhost")
+            .is_err());
+    }
+}

libs/dtls/src/change_cipher_spec/change_cipher_spec_test.rs

@@ -0,0 +1,37 @@
+use std::io::{BufReader, BufWriter};
+
+use super::*;
+
+#[test]
+fn test_change_cipher_spec_round_trip() -> Result<()> {
+    let c = ChangeCipherSpec {};
+    let mut raw = vec![];
+    {
+        let mut writer = BufWriter::<&mut Vec<u8>>::new(raw.as_mut());
+        c.marshal(&mut writer)?;
+    }
+
+    let mut reader = BufReader::new(raw.as_slice());
+    let cnew = ChangeCipherSpec::unmarshal(&mut reader)?;
+    assert_eq!(
+        c, cnew,
+        "ChangeCipherSpec round trip: got {cnew:?}, want {c:?}"
+    );
+
+    Ok(())
+}
+
+#[test]
+fn test_change_cipher_spec_invalid() -> Result<()> {
+    let data = vec![0x00];
+
+    let mut reader = BufReader::new(data.as_slice());
+    let result = ChangeCipherSpec::unmarshal(&mut reader);
+
+    match result {
+        Ok(_) => panic!("must be error"),
+        Err(err) => assert_eq!(err.to_string(), Error::ErrInvalidCipherSpec.to_string()),
+    };
+
+    Ok(())
+}

libs/dtls/src/change_cipher_spec/mod.rs

@@ -0,0 +1,46 @@
+#[cfg(test)]
+mod change_cipher_spec_test;
+
+use std::io::{Read, Write};
+
+use byteorder::{ReadBytesExt, WriteBytesExt};
+
+use super::content::*;
+use super::error::*;
+
+// The change cipher spec protocol exists to signal transitions in
+// ciphering strategies.  The protocol consists of a single message,
+// which is encrypted and compressed under the current (not the pending)
+// connection state.  The message consists of a single byte of value 1.
+/// ## Specifications
+///
+/// * [RFC 5246 §7.1]
+///
+/// [RFC 5246 §7.1]: https://tools.ietf.org/html/rfc5246#section-7.1
+#[derive(Clone, PartialEq, Eq, Debug)]
+pub struct ChangeCipherSpec;
+
+impl ChangeCipherSpec {
+    pub fn content_type(&self) -> ContentType {
+        ContentType::ChangeCipherSpec
+    }
+
+    pub fn size(&self) -> usize {
+        1
+    }
+
+    pub fn marshal<W: Write>(&self, writer: &mut W) -> Result<()> {
+        writer.write_u8(0x01)?;
+
+        Ok(writer.flush()?)
+    }
+
+    pub fn unmarshal<R: Read>(reader: &mut R) -> Result<Self> {
+        let data = reader.read_u8()?;
+        if data != 0x01 {
+            return Err(Error::ErrInvalidCipherSpec);
+        }
+
+        Ok(ChangeCipherSpec {})
+    }
+}

libs/dtls/src/cipher_suite/cipher_suite_aes_128_ccm.rs

@@ -0,0 +1,112 @@
+use super::*;
+use crate::client_certificate_type::ClientCertificateType;
+use crate::crypto::crypto_ccm::{CryptoCcm, CryptoCcmTagLen};
+use crate::prf::*;
+
+#[derive(Clone)]
+pub struct CipherSuiteAes128Ccm {
+    ccm: Option<CryptoCcm>,
+    client_certificate_type: ClientCertificateType,
+    id: CipherSuiteId,
+    psk: bool,
+    crypto_ccm_tag_len: CryptoCcmTagLen,
+}
+
+impl CipherSuiteAes128Ccm {
+    const PRF_MAC_LEN: usize = 0;
+    const PRF_KEY_LEN: usize = 16;
+    const PRF_IV_LEN: usize = 4;
+
+    pub fn new(
+        client_certificate_type: ClientCertificateType,
+        id: CipherSuiteId,
+        psk: bool,
+        crypto_ccm_tag_len: CryptoCcmTagLen,
+    ) -> Self {
+        CipherSuiteAes128Ccm {
+            ccm: None,
+            client_certificate_type,
+            id,
+            psk,
+            crypto_ccm_tag_len,
+        }
+    }
+}
+
+impl CipherSuite for CipherSuiteAes128Ccm {
+    fn to_string(&self) -> String {
+        format!("{}", self.id)
+    }
+
+    fn id(&self) -> CipherSuiteId {
+        self.id
+    }
+
+    fn certificate_type(&self) -> ClientCertificateType {
+        self.client_certificate_type
+    }
+
+    fn hash_func(&self) -> CipherSuiteHash {
+        CipherSuiteHash::Sha256
+    }
+
+    fn is_psk(&self) -> bool {
+        self.psk
+    }
+
+    fn is_initialized(&self) -> bool {
+        self.ccm.is_some()
+    }
+
+    fn init(
+        &mut self,
+        master_secret: &[u8],
+        client_random: &[u8],
+        server_random: &[u8],
+        is_client: bool,
+    ) -> Result<()> {
+        let keys = prf_encryption_keys(
+            master_secret,
+            client_random,
+            server_random,
+            CipherSuiteAes128Ccm::PRF_MAC_LEN,
+            CipherSuiteAes128Ccm::PRF_KEY_LEN,
+            CipherSuiteAes128Ccm::PRF_IV_LEN,
+            self.hash_func(),
+        )?;
+
+        if is_client {
+            self.ccm = Some(CryptoCcm::new(
+                &self.crypto_ccm_tag_len,
+                &keys.client_write_key,
+                &keys.client_write_iv,
+                &keys.server_write_key,
+                &keys.server_write_iv,
+            ));
+        } else {
+            self.ccm = Some(CryptoCcm::new(
+                &self.crypto_ccm_tag_len,
+                &keys.server_write_key,
+                &keys.server_write_iv,
+                &keys.client_write_key,
+                &keys.client_write_iv,
+            ));
+        }
+
+        Ok(())
+    }
+
+    fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>> {
+        let ccm = self.ccm.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to encrypt".to_owned(),
+        ))?;
+        ccm.encrypt(pkt_rlh, raw)
+    }
+
+    fn decrypt(&self, input: &[u8]) -> Result<Vec<u8>> {
+        let ccm = self.ccm.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to decrypt".to_owned(),
+        ))?;
+        ccm.decrypt(input)
+    }
+}

libs/dtls/src/cipher_suite/cipher_suite_aes_128_gcm_sha256.rs

@@ -0,0 +1,107 @@
+use super::*;
+use crate::crypto::crypto_gcm::*;
+use crate::prf::*;
+
+#[derive(Clone)]
+pub struct CipherSuiteAes128GcmSha256 {
+    gcm: Option<CryptoGcm>,
+    rsa: bool,
+}
+
+impl CipherSuiteAes128GcmSha256 {
+    const PRF_MAC_LEN: usize = 0;
+    const PRF_KEY_LEN: usize = 16;
+    const PRF_IV_LEN: usize = 4;
+
+    pub fn new(rsa: bool) -> Self {
+        CipherSuiteAes128GcmSha256 { gcm: None, rsa }
+    }
+}
+
+impl CipherSuite for CipherSuiteAes128GcmSha256 {
+    fn to_string(&self) -> String {
+        if self.rsa {
+            "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256".to_owned()
+        } else {
+            "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256".to_owned()
+        }
+    }
+
+    fn id(&self) -> CipherSuiteId {
+        if self.rsa {
+            CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_128_Gcm_Sha256
+        } else {
+            CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Gcm_Sha256
+        }
+    }
+
+    fn certificate_type(&self) -> ClientCertificateType {
+        if self.rsa {
+            ClientCertificateType::RsaSign
+        } else {
+            ClientCertificateType::EcdsaSign
+        }
+    }
+
+    fn hash_func(&self) -> CipherSuiteHash {
+        CipherSuiteHash::Sha256
+    }
+
+    fn is_psk(&self) -> bool {
+        false
+    }
+
+    fn is_initialized(&self) -> bool {
+        self.gcm.is_some()
+    }
+
+    fn init(
+        &mut self,
+        master_secret: &[u8],
+        client_random: &[u8],
+        server_random: &[u8],
+        is_client: bool,
+    ) -> Result<()> {
+        let keys = prf_encryption_keys(
+            master_secret,
+            client_random,
+            server_random,
+            CipherSuiteAes128GcmSha256::PRF_MAC_LEN,
+            CipherSuiteAes128GcmSha256::PRF_KEY_LEN,
+            CipherSuiteAes128GcmSha256::PRF_IV_LEN,
+            self.hash_func(),
+        )?;
+
+        if is_client {
+            self.gcm = Some(CryptoGcm::new(
+                &keys.client_write_key,
+                &keys.client_write_iv,
+                &keys.server_write_key,
+                &keys.server_write_iv,
+            ));
+        } else {
+            self.gcm = Some(CryptoGcm::new(
+                &keys.server_write_key,
+                &keys.server_write_iv,
+                &keys.client_write_key,
+                &keys.client_write_iv,
+            ));
+        }
+
+        Ok(())
+    }
+
+    fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>> {
+        let cg = self.gcm.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to encrypt".to_owned(),
+        ))?;
+        cg.encrypt(pkt_rlh, raw)
+    }
+
+    fn decrypt(&self, input: &[u8]) -> Result<Vec<u8>> {
+        let cg = self.gcm.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to decrypt".to_owned(),
+        ))?;
+        cg.decrypt(input)
+    }
+}

libs/dtls/src/cipher_suite/cipher_suite_aes_256_cbc_sha.rs

@@ -0,0 +1,107 @@
+use super::*;
+use crate::crypto::crypto_cbc::*;
+use crate::prf::*;
+
+#[derive(Clone)]
+pub struct CipherSuiteAes256CbcSha {
+    cbc: Option<CryptoCbc>,
+    rsa: bool,
+}
+
+impl CipherSuiteAes256CbcSha {
+    const PRF_MAC_LEN: usize = 20;
+    const PRF_KEY_LEN: usize = 32;
+    const PRF_IV_LEN: usize = 16;
+
+    pub fn new(rsa: bool) -> Self {
+        CipherSuiteAes256CbcSha { cbc: None, rsa }
+    }
+}
+
+impl CipherSuite for CipherSuiteAes256CbcSha {
+    fn to_string(&self) -> String {
+        if self.rsa {
+            "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA".to_owned()
+        } else {
+            "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA".to_owned()
+        }
+    }
+
+    fn id(&self) -> CipherSuiteId {
+        if self.rsa {
+            CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_256_Cbc_Sha
+        } else {
+            CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_256_Cbc_Sha
+        }
+    }
+
+    fn certificate_type(&self) -> ClientCertificateType {
+        if self.rsa {
+            ClientCertificateType::RsaSign
+        } else {
+            ClientCertificateType::EcdsaSign
+        }
+    }
+
+    fn hash_func(&self) -> CipherSuiteHash {
+        CipherSuiteHash::Sha256
+    }
+
+    fn is_psk(&self) -> bool {
+        false
+    }
+
+    fn is_initialized(&self) -> bool {
+        self.cbc.is_some()
+    }
+
+    fn init(
+        &mut self,
+        master_secret: &[u8],
+        client_random: &[u8],
+        server_random: &[u8],
+        is_client: bool,
+    ) -> Result<()> {
+        let keys = prf_encryption_keys(
+            master_secret,
+            client_random,
+            server_random,
+            CipherSuiteAes256CbcSha::PRF_MAC_LEN,
+            CipherSuiteAes256CbcSha::PRF_KEY_LEN,
+            CipherSuiteAes256CbcSha::PRF_IV_LEN,
+            self.hash_func(),
+        )?;
+
+        if is_client {
+            self.cbc = Some(CryptoCbc::new(
+                &keys.client_write_key,
+                &keys.client_mac_key,
+                &keys.server_write_key,
+                &keys.server_mac_key,
+            )?);
+        } else {
+            self.cbc = Some(CryptoCbc::new(
+                &keys.server_write_key,
+                &keys.server_mac_key,
+                &keys.client_write_key,
+                &keys.client_mac_key,
+            )?);
+        }
+
+        Ok(())
+    }
+
+    fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>> {
+        let cg = self.cbc.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to encrypt".to_owned(),
+        ))?;
+        cg.encrypt(pkt_rlh, raw)
+    }
+
+    fn decrypt(&self, input: &[u8]) -> Result<Vec<u8>> {
+        let cg = self.cbc.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to decrypt".to_owned(),
+        ))?;
+        cg.decrypt(input)
+    }
+}

libs/dtls/src/cipher_suite/cipher_suite_chacha20_poly1305_sha256.rs

@@ -0,0 +1,107 @@
+use super::*;
+use crate::crypto::crypto_chacha20::*;
+use crate::prf::*;
+
+#[derive(Clone)]
+pub struct CipherSuiteChaCha20Poly1305Sha256 {
+    rsa: bool,
+    cipher: Option<CryptoChaCha20>,
+}
+
+impl CipherSuiteChaCha20Poly1305Sha256 {
+    const PRF_MAC_LEN: usize = 0;
+    const PRF_KEY_LEN: usize = 32;
+    const PRF_IV_LEN: usize = 12;
+
+    pub fn new(rsa: bool) -> Self {
+        CipherSuiteChaCha20Poly1305Sha256 { rsa, cipher: None }
+    }
+}
+
+impl CipherSuite for CipherSuiteChaCha20Poly1305Sha256 {
+    fn to_string(&self) -> String {
+        if self.rsa {
+            "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256".to_owned()
+        } else {
+            "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256".to_owned()
+        }
+    }
+
+    fn id(&self) -> CipherSuiteId {
+        if self.rsa {
+            CipherSuiteId::Tls_Ecdhe_Rsa_With_ChaCha20_Poly1305_Sha256
+        } else {
+            CipherSuiteId::Tls_Ecdhe_Ecdsa_With_ChaCha20_Poly1305_Sha256
+        }
+    }
+
+    fn certificate_type(&self) -> ClientCertificateType {
+        if self.rsa {
+            ClientCertificateType::RsaSign
+        } else {
+            ClientCertificateType::EcdsaSign
+        }
+    }
+
+    fn hash_func(&self) -> CipherSuiteHash {
+        CipherSuiteHash::Sha256
+    }
+
+    fn is_psk(&self) -> bool {
+        false
+    }
+
+    fn is_initialized(&self) -> bool {
+        self.cipher.is_some()
+    }
+
+    fn init(
+        &mut self,
+        master_secret: &[u8],
+        client_random: &[u8],
+        server_random: &[u8],
+        is_client: bool,
+    ) -> Result<()> {
+        let keys = prf_encryption_keys(
+            master_secret,
+            client_random,
+            server_random,
+            CipherSuiteChaCha20Poly1305Sha256::PRF_MAC_LEN,
+            CipherSuiteChaCha20Poly1305Sha256::PRF_KEY_LEN,
+            CipherSuiteChaCha20Poly1305Sha256::PRF_IV_LEN,
+            self.hash_func(),
+        )?;
+
+        if is_client {
+            self.cipher = Some(CryptoChaCha20::new(
+                &keys.client_write_key,
+                &keys.client_write_iv,
+                &keys.server_write_key,
+                &keys.server_write_iv,
+            ));
+        } else {
+            self.cipher = Some(CryptoChaCha20::new(
+                &keys.server_write_key,
+                &keys.server_write_iv,
+                &keys.client_write_key,
+                &keys.client_write_iv,
+            ));
+        }
+
+        Ok(())
+    }
+
+    fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>> {
+        let cg = self.cipher.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to encrypt".to_owned(),
+        ))?;
+        cg.encrypt(pkt_rlh, raw)
+    }
+
+    fn decrypt(&self, input: &[u8]) -> Result<Vec<u8>> {
+        let cg = self.cipher.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to decrypt".to_owned(),
+        ))?;
+        cg.decrypt(input)
+    }
+}

libs/dtls/src/cipher_suite/cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm.rs

@@ -0,0 +1,12 @@
+use super::*;
+use crate::cipher_suite::cipher_suite_aes_128_ccm::CipherSuiteAes128Ccm;
+use crate::crypto::crypto_ccm::CryptoCcmTagLen;
+
+pub fn new_cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm() -> CipherSuiteAes128Ccm {
+    CipherSuiteAes128Ccm::new(
+        ClientCertificateType::EcdsaSign,
+        CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm,
+        false,
+        CryptoCcmTagLen::CryptoCcmTagLength,
+    )
+}

libs/dtls/src/cipher_suite/cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm8.rs

@@ -0,0 +1,12 @@
+use super::*;
+use crate::cipher_suite::cipher_suite_aes_128_ccm::CipherSuiteAes128Ccm;
+use crate::crypto::crypto_ccm::CryptoCcmTagLen;
+
+pub fn new_cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm8() -> CipherSuiteAes128Ccm {
+    CipherSuiteAes128Ccm::new(
+        ClientCertificateType::EcdsaSign,
+        CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm_8,
+        false,
+        CryptoCcmTagLen::CryptoCcm8TagLength,
+    )
+}

libs/dtls/src/cipher_suite/cipher_suite_tls_psk_with_aes_128_ccm.rs

@@ -0,0 +1,12 @@
+use super::*;
+use crate::cipher_suite::cipher_suite_aes_128_ccm::CipherSuiteAes128Ccm;
+use crate::crypto::crypto_ccm::CryptoCcmTagLen;
+
+pub fn new_cipher_suite_tls_psk_with_aes_128_ccm() -> CipherSuiteAes128Ccm {
+    CipherSuiteAes128Ccm::new(
+        ClientCertificateType::Unsupported,
+        CipherSuiteId::Tls_Psk_With_Aes_128_Ccm,
+        true,
+        CryptoCcmTagLen::CryptoCcmTagLength,
+    )
+}

libs/dtls/src/cipher_suite/cipher_suite_tls_psk_with_aes_128_ccm8.rs

@@ -0,0 +1,12 @@
+use super::*;
+use crate::cipher_suite::cipher_suite_aes_128_ccm::CipherSuiteAes128Ccm;
+use crate::crypto::crypto_ccm::CryptoCcmTagLen;
+
+pub fn new_cipher_suite_tls_psk_with_aes_128_ccm8() -> CipherSuiteAes128Ccm {
+    CipherSuiteAes128Ccm::new(
+        ClientCertificateType::Unsupported,
+        CipherSuiteId::Tls_Psk_With_Aes_128_Ccm_8,
+        true,
+        CryptoCcmTagLen::CryptoCcm8TagLength,
+    )
+}

libs/dtls/src/cipher_suite/cipher_suite_tls_psk_with_aes_128_gcm_sha256.rs

@@ -0,0 +1,90 @@
+use super::*;
+use crate::crypto::crypto_gcm::*;
+use crate::prf::*;
+
+#[derive(Clone, Default)]
+pub struct CipherSuiteTlsPskWithAes128GcmSha256 {
+    gcm: Option<CryptoGcm>,
+}
+
+impl CipherSuiteTlsPskWithAes128GcmSha256 {
+    const PRF_MAC_LEN: usize = 0;
+    const PRF_KEY_LEN: usize = 16;
+    const PRF_IV_LEN: usize = 4;
+}
+
+impl CipherSuite for CipherSuiteTlsPskWithAes128GcmSha256 {
+    fn to_string(&self) -> String {
+        "TLS_PSK_WITH_AES_128_GCM_SHA256".to_owned()
+    }
+
+    fn id(&self) -> CipherSuiteId {
+        CipherSuiteId::Tls_Psk_With_Aes_128_Gcm_Sha256
+    }
+
+    fn certificate_type(&self) -> ClientCertificateType {
+        ClientCertificateType::Unsupported
+    }
+
+    fn hash_func(&self) -> CipherSuiteHash {
+        CipherSuiteHash::Sha256
+    }
+
+    fn is_psk(&self) -> bool {
+        true
+    }
+
+    fn is_initialized(&self) -> bool {
+        self.gcm.is_some()
+    }
+
+    fn init(
+        &mut self,
+        master_secret: &[u8],
+        client_random: &[u8],
+        server_random: &[u8],
+        is_client: bool,
+    ) -> Result<()> {
+        let keys = prf_encryption_keys(
+            master_secret,
+            client_random,
+            server_random,
+            CipherSuiteTlsPskWithAes128GcmSha256::PRF_MAC_LEN,
+            CipherSuiteTlsPskWithAes128GcmSha256::PRF_KEY_LEN,
+            CipherSuiteTlsPskWithAes128GcmSha256::PRF_IV_LEN,
+            self.hash_func(),
+        )?;
+
+        if is_client {
+            self.gcm = Some(CryptoGcm::new(
+                &keys.client_write_key,
+                &keys.client_write_iv,
+                &keys.server_write_key,
+                &keys.server_write_iv,
+            ));
+        } else {
+            self.gcm = Some(CryptoGcm::new(
+                &keys.server_write_key,
+                &keys.server_write_iv,
+                &keys.client_write_key,
+                &keys.client_write_iv,
+            ));
+        }
+
+        Ok(())
+    }
+
+    fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>> {
+        let cg = self.gcm.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to encrypt".to_owned(),
+        ))?;
+        cg.encrypt(pkt_rlh, raw)
+    }
+
+    fn decrypt(&self, input: &[u8]) -> Result<Vec<u8>> {
+        let cg = self.gcm.as_ref().ok_or(Error::Other(
+            "CipherSuite has not been initialized, unable to decrypt".to_owned(),
+        ))?;
+        cg.decrypt(input)
+    }
+}

libs/dtls/src/cipher_suite/mod.rs

@@ -0,0 +1,287 @@
+pub mod cipher_suite_aes_128_ccm;
+pub mod cipher_suite_aes_128_gcm_sha256;
+pub mod cipher_suite_aes_256_cbc_sha;
+pub mod cipher_suite_chacha20_poly1305_sha256;
+pub mod cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm;
+pub mod cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm8;
+pub mod cipher_suite_tls_psk_with_aes_128_ccm;
+pub mod cipher_suite_tls_psk_with_aes_128_ccm8;
+pub mod cipher_suite_tls_psk_with_aes_128_gcm_sha256;
+
+use std::fmt;
+use std::marker::{Send, Sync};
+
+use cipher_suite_aes_128_gcm_sha256::*;
+use cipher_suite_aes_256_cbc_sha::*;
+use cipher_suite_chacha20_poly1305_sha256::*;
+use cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm::*;
+use cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm8::*;
+use cipher_suite_tls_psk_with_aes_128_ccm::*;
+use cipher_suite_tls_psk_with_aes_128_ccm8::*;
+use cipher_suite_tls_psk_with_aes_128_gcm_sha256::*;
+
+use super::client_certificate_type::*;
+use super::error::*;
+use super::record_layer::record_layer_header::*;
+
+// CipherSuiteID is an ID for our supported CipherSuites
+// Supported Cipher Suites
+#[allow(non_camel_case_types)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub enum CipherSuiteId {
+    // AES-128-CCM
+    Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm = 0xc0ac,
+    Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm_8 = 0xc0ae,
+
+    // AES-128-GCM-SHA256
+    Tls_Ecdhe_Ecdsa_With_Aes_128_Gcm_Sha256 = 0xc02b,
+    Tls_Ecdhe_Rsa_With_Aes_128_Gcm_Sha256 = 0xc02f,
+
+    // AES-256-CBC-SHA
+    Tls_Ecdhe_Ecdsa_With_Aes_256_Cbc_Sha = 0xc00a,
+    Tls_Ecdhe_Rsa_With_Aes_256_Cbc_Sha = 0xc014,
+
+    Tls_Psk_With_Aes_128_Ccm = 0xc0a4,
+    Tls_Psk_With_Aes_128_Ccm_8 = 0xc0a8,
+    Tls_Psk_With_Aes_128_Gcm_Sha256 = 0x00a8,
+
+    // CHACHA20_POLY1305_SHA256
+    Tls_Ecdhe_Rsa_With_ChaCha20_Poly1305_Sha256 = 0xcca8,
+    Tls_Ecdhe_Ecdsa_With_ChaCha20_Poly1305_Sha256 = 0xcca9,
+
+    Unsupported,
+}
+
+impl fmt::Display for CipherSuiteId {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match *self {
+            CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm => {
+                write!(f, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM")
+            }
+            CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm_8 => {
+                write!(f, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8")
+            }
+            CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Gcm_Sha256 => {
+                write!(f, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256")
+            }
+            CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_128_Gcm_Sha256 => {
+                write!(f, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256")
+            }
+            CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_256_Cbc_Sha => {
+                write!(f, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA")
+            }
+            CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_256_Cbc_Sha => {
+                write!(f, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA")
+            }
+            CipherSuiteId::Tls_Psk_With_Aes_128_Ccm => write!(f, "TLS_PSK_WITH_AES_128_CCM"),
+            CipherSuiteId::Tls_Psk_With_Aes_128_Ccm_8 => write!(f, "TLS_PSK_WITH_AES_128_CCM_8"),
+            CipherSuiteId::Tls_Psk_With_Aes_128_Gcm_Sha256 => {
+                write!(f, "TLS_PSK_WITH_AES_128_GCM_SHA256")
+            }
+            CipherSuiteId::Tls_Ecdhe_Rsa_With_ChaCha20_Poly1305_Sha256 => {
+                write!(f, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256")
+            }
+            CipherSuiteId::Tls_Ecdhe_Ecdsa_With_ChaCha20_Poly1305_Sha256 => {
+                write!(f, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256")
+            }
+
+            _ => write!(f, "Unsupported CipherSuiteID"),
+        }
+    }
+}
+
+impl From<u16> for CipherSuiteId {
+    fn from(val: u16) -> Self {
+        match val {
+            // AES-128-CCM
+            0xc0ac => CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm,
+            0xc0ae => CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm_8,
+
+            // AES-128-GCM-SHA256
+            0xc02b => CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Gcm_Sha256,
+            0xc02f => CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_128_Gcm_Sha256,
+
+            // AES-256-CBC-SHA
+            0xc00a => CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_256_Cbc_Sha,
+            0xc014 => CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_256_Cbc_Sha,
+
+            0xc0a4 => CipherSuiteId::Tls_Psk_With_Aes_128_Ccm,
+            0xc0a8 => CipherSuiteId::Tls_Psk_With_Aes_128_Ccm_8,
+            0x00a8 => CipherSuiteId::Tls_Psk_With_Aes_128_Gcm_Sha256,
+
+            // CHACHA20_POLY1305_SHA256
+            0xcca8 => CipherSuiteId::Tls_Ecdhe_Rsa_With_ChaCha20_Poly1305_Sha256,
+            0xcca9 => CipherSuiteId::Tls_Ecdhe_Ecdsa_With_ChaCha20_Poly1305_Sha256,
+
+            _ => CipherSuiteId::Unsupported,
+        }
+    }
+}
+
+impl From<&str> for CipherSuiteId {
+    fn from(val: &str) -> Self {
+        match val {
+            "TLS_ECDHE_ECDSA_WITH_AES_128_CCM" => CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm,
+            "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8" => {
+                CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm_8
+            }
+            "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" => {
+                CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Gcm_Sha256
+            }
+            "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256" => {
+                CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_128_Gcm_Sha256
+            }
+            "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA" => {
+                CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_256_Cbc_Sha
+            }
+            "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA" => {
+                CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_256_Cbc_Sha
+            }
+            "TLS_PSK_WITH_AES_128_CCM" => CipherSuiteId::Tls_Psk_With_Aes_128_Ccm,
+            "TLS_PSK_WITH_AES_128_CCM_8" => CipherSuiteId::Tls_Psk_With_Aes_128_Ccm_8,
+            "TLS_PSK_WITH_AES_128_GCM_SHA256" => CipherSuiteId::Tls_Psk_With_Aes_128_Gcm_Sha256,
+            "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" => {
+                CipherSuiteId::Tls_Ecdhe_Rsa_With_ChaCha20_Poly1305_Sha256
+            }
+            "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" => {
+                CipherSuiteId::Tls_Ecdhe_Ecdsa_With_ChaCha20_Poly1305_Sha256
+            }
+            _ => CipherSuiteId::Unsupported,
+        }
+    }
+}
+
+#[derive(Copy, Clone, Debug)]
+pub enum CipherSuiteHash {
+    Sha256,
+}
+
+impl CipherSuiteHash {
+    pub(crate) fn size(&self) -> usize {
+        match *self {
+            CipherSuiteHash::Sha256 => 32,
+        }
+    }
+}
+
+pub trait CipherSuite {
+    fn to_string(&self) -> String;
+    fn id(&self) -> CipherSuiteId;
+    fn certificate_type(&self) -> ClientCertificateType;
+    fn hash_func(&self) -> CipherSuiteHash;
+    fn is_psk(&self) -> bool;
+    fn is_initialized(&self) -> bool;
+
+    // Generate the internal encryption state
+    fn init(
+        &mut self,
+        master_secret: &[u8],
+        client_random: &[u8],
+        server_random: &[u8],
+        is_client: bool,
+    ) -> Result<()>;
+
+    fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>>;
+    fn decrypt(&self, input: &[u8]) -> Result<Vec<u8>>;
+}
+
+// Taken from https://www.iana.org/assignments/tls-parameters/tls-parameters.xml
+// A cipher_suite is a specific combination of key agreement, cipher and MAC
+// function.
+pub fn cipher_suite_for_id(id: CipherSuiteId) -> Result<Box<dyn CipherSuite + Send + Sync>> {
+    match id {
+        CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm => {
+            Ok(Box::new(new_cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm()))
+        }
+        CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Ccm_8 => Ok(Box::new(
+            new_cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm8(),
+        )),
+        CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_128_Gcm_Sha256 => {
+            Ok(Box::new(CipherSuiteAes128GcmSha256::new(false)))
+        }
+        CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_128_Gcm_Sha256 => {
+            Ok(Box::new(CipherSuiteAes128GcmSha256::new(true)))
+        }
+        CipherSuiteId::Tls_Ecdhe_Rsa_With_Aes_256_Cbc_Sha => {
+            Ok(Box::new(CipherSuiteAes256CbcSha::new(true)))
+        }
+        CipherSuiteId::Tls_Ecdhe_Ecdsa_With_Aes_256_Cbc_Sha => {
+            Ok(Box::new(CipherSuiteAes256CbcSha::new(false)))
+        }
+        CipherSuiteId::Tls_Psk_With_Aes_128_Ccm => {
+            Ok(Box::new(new_cipher_suite_tls_psk_with_aes_128_ccm()))
+        }
+        CipherSuiteId::Tls_Psk_With_Aes_128_Ccm_8 => {
+            Ok(Box::new(new_cipher_suite_tls_psk_with_aes_128_ccm8()))
+        }
+        CipherSuiteId::Tls_Psk_With_Aes_128_Gcm_Sha256 => {
+            Ok(Box::<CipherSuiteTlsPskWithAes128GcmSha256>::default())
+        }
+        CipherSuiteId::Tls_Ecdhe_Rsa_With_ChaCha20_Poly1305_Sha256 => {
+            Ok(Box::new(CipherSuiteChaCha20Poly1305Sha256::new(true)))
+        }
+        CipherSuiteId::Tls_Ecdhe_Ecdsa_With_ChaCha20_Poly1305_Sha256 => {
+            Ok(Box::new(CipherSuiteChaCha20Poly1305Sha256::new(false)))
+        }
+
+        _ => Err(Error::ErrInvalidCipherSuite),
+    }
+}
+
+// CipherSuites we support in order of preference
+pub(crate) fn default_cipher_suites() -> Vec<Box<dyn CipherSuite + Send + Sync>> {
+    vec![
+        Box::new(CipherSuiteAes128GcmSha256::new(false)),
+        Box::new(CipherSuiteAes256CbcSha::new(false)),
+        Box::new(CipherSuiteAes128GcmSha256::new(true)),
+        Box::new(CipherSuiteAes256CbcSha::new(true)),
+        Box::new(CipherSuiteChaCha20Poly1305Sha256::new(false)),
+    ]
+}
+
+fn all_cipher_suites() -> Vec<Box<dyn CipherSuite + Send + Sync>> {
+    vec![
+        Box::new(new_cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm()),
+        Box::new(new_cipher_suite_tls_ecdhe_ecdsa_with_aes_128_ccm8()),
+        Box::new(CipherSuiteAes128GcmSha256::new(false)),
+        Box::new(CipherSuiteAes128GcmSha256::new(true)),
+        Box::new(CipherSuiteAes256CbcSha::new(false)),
+        Box::new(CipherSuiteAes256CbcSha::new(true)),
+        Box::new(new_cipher_suite_tls_psk_with_aes_128_ccm()),
+        Box::new(new_cipher_suite_tls_psk_with_aes_128_ccm8()),
+        Box::<CipherSuiteTlsPskWithAes128GcmSha256>::default(),
+        Box::new(CipherSuiteChaCha20Poly1305Sha256::new(false)),
+        Box::new(CipherSuiteChaCha20Poly1305Sha256::new(true)),
+    ]
+}
+
+fn cipher_suites_for_ids(ids: &[CipherSuiteId]) -> Result<Vec<Box<dyn CipherSuite + Send + Sync>>> {
+    let mut cipher_suites = vec![];
+    for id in ids {
+        cipher_suites.push(cipher_suite_for_id(*id)?);
+    }
+    Ok(cipher_suites)
+}
+
+pub(crate) fn parse_cipher_suites(
+    user_selected_suites: &[CipherSuiteId],
+    exclude_psk: bool,
+    exclude_non_psk: bool,
+) -> Result<Vec<Box<dyn CipherSuite + Send + Sync>>> {
+    let cipher_suites = if !user_selected_suites.is_empty() {
+        cipher_suites_for_ids(user_selected_suites)?
+    } else {
+        default_cipher_suites()
+    };
+
+    let filtered_cipher_suites: Vec<Box<dyn CipherSuite + Send + Sync>> = cipher_suites
+        .into_iter()
+        .filter(|c| !((exclude_psk && c.is_psk()) || (exclude_non_psk && !c.is_psk())))
+        .collect();
+
+    if filtered_cipher_suites.is_empty() {
+        Err(Error::ErrNoAvailableCipherSuites)
+    } else {
+        Ok(filtered_cipher_suites)
+    }
+}

libs/dtls/src/client_certificate_type.rs

@@ -0,0 +1,16 @@
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub enum ClientCertificateType {
+    RsaSign = 1,
+    EcdsaSign = 64,
+    Unsupported,
+}
+
+impl From<u8> for ClientCertificateType {
+    fn from(val: u8) -> Self {
+        match val {
+            1 => ClientCertificateType::RsaSign,
+            64 => ClientCertificateType::EcdsaSign,
+            _ => ClientCertificateType::Unsupported,
+        }
+    }
+}

libs/dtls/src/compression_methods.rs

@@ -0,0 +1,60 @@
+use std::io::{Read, Write};
+
+use byteorder::{ReadBytesExt, WriteBytesExt};
+
+use crate::error::Result;
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub enum CompressionMethodId {
+    Null = 0,
+    Unsupported,
+}
+
+impl From<u8> for CompressionMethodId {
+    fn from(val: u8) -> Self {
+        match val {
+            0 => CompressionMethodId::Null,
+            _ => CompressionMethodId::Unsupported,
+        }
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct CompressionMethods {
+    pub ids: Vec<CompressionMethodId>,
+}
+
+impl CompressionMethods {
+    pub fn size(&self) -> usize {
+        1 + self.ids.len()
+    }
+
+    pub fn marshal<W: Write>(&self, writer: &mut W) -> Result<()> {
+        writer.write_u8(self.ids.len() as u8)?;
+
+        for id in &self.ids {
+            writer.write_u8(*id as u8)?;
+        }
+
+        Ok(writer.flush()?)
+    }
+
+    pub fn unmarshal<R: Read>(reader: &mut R) -> Result<Self> {
+        let compression_methods_count = reader.read_u8()? as usize;
+        let mut ids = vec![];
+        for _ in 0..compression_methods_count {
+            let id = reader.read_u8()?.into();
+            if id != CompressionMethodId::Unsupported {
+                ids.push(id);
+            }
+        }
+
+        Ok(CompressionMethods { ids })
+    }
+}
+
+pub fn default_compression_methods() -> CompressionMethods {
+    CompressionMethods {
+        ids: vec![CompressionMethodId::Null],
+    }
+}

libs/dtls/src/config.rs

@@ -0,0 +1,193 @@
+use std::future::Future;
+use std::pin::Pin;
+use std::sync::Arc;
+
+use tokio::time::Duration;
+
+use crate::cipher_suite::*;
+use crate::crypto::*;
+use crate::error::*;
+use crate::extension::extension_use_srtp::SrtpProtectionProfile;
+use crate::handshaker::VerifyPeerCertificateFn;
+use crate::signature_hash_algorithm::SignatureScheme;
+
+/// Config is used to configure a DTLS client or server.
+/// After a Config is passed to a DTLS function it must not be modified.
+#[derive(Clone)]
+pub struct Config {
+    /// certificates contains certificate chain to present to the other side of the connection.
+    /// Server MUST set this if psk is non-nil
+    /// client SHOULD sets this so CertificateRequests can be handled if psk is non-nil
+    pub certificates: Vec<Certificate>,
+
+    /// cipher_suites is a list of supported cipher suites.
+    /// If cipher_suites is nil, a default list is used
+    pub cipher_suites: Vec<CipherSuiteId>,
+
+    /// signature_schemes contains the signature and hash schemes that the peer requests to verify.
+    pub signature_schemes: Vec<SignatureScheme>,
+
+    /// srtp_protection_profiles are the supported protection profiles
+    /// Clients will send this via use_srtp and assert that the server properly responds
+    /// Servers will assert that clients send one of these profiles and will respond as needed
+    pub srtp_protection_profiles: Vec<SrtpProtectionProfile>,
+
+    /// client_auth determines the server's policy for
+    /// TLS Client Authentication. The default is NoClientCert.
+    pub client_auth: ClientAuthType,
+
+    /// extended_master_secret determines if the "Extended Master Secret" extension
+    /// should be disabled, requested, or required (default requested).
+    pub extended_master_secret: ExtendedMasterSecretType,
+
+    /// flight_interval controls how often we send outbound handshake messages
+    /// defaults to time.Second
+    pub flight_interval: Duration,
+
+    /// psk sets the pre-shared key used by this DTLS connection
+    /// If psk is non-nil only psk cipher_suites will be used
+    pub psk: Option<PskCallback>,
+    pub psk_identity_hint: Option<Vec<u8>>,
+
+    /// insecure_skip_verify controls whether a client verifies the
+    /// server's certificate chain and host name.
+    /// If insecure_skip_verify is true, TLS accepts any certificate
+    /// presented by the server and any host name in that certificate.
+    /// In this mode, TLS is susceptible to man-in-the-middle attacks.
+    /// This should be used only for testing.
+    pub insecure_skip_verify: bool,
+
+    /// insecure_hashes allows the use of hashing algorithms that are known
+    /// to be vulnerable.
+    pub insecure_hashes: bool,
+
+    /// insecure_verification allows the use of verification algorithms that are
+    /// known to be vulnerable or deprecated
+    pub insecure_verification: bool,
+    /// VerifyPeerCertificate, if not nil, is called after normal
+    /// certificate verification by either a client or server. It
+    /// receives the certificate provided by the peer and also a flag
+    /// that tells if normal verification has succeeded. If it returns a
+    /// non-nil error, the handshake is aborted and that error results.
+    ///
+    /// If normal verification fails then the handshake will abort before
+    /// considering this callback. If normal verification is disabled by
+    /// setting insecure_skip_verify, or (for a server) when client_auth is
+    /// RequestClientCert or RequireAnyClientCert, then this callback will
+    /// be considered but the verifiedChains will always be nil.
+    pub verify_peer_certificate: Option<VerifyPeerCertificateFn>,
+
+    /// roots_cas defines the set of root certificate authorities
+    /// that one peer uses when verifying the other peer's certificates.
+    /// If RootCAs is nil, TLS uses the host's root CA set.
+    /// Used by Client to verify server's certificate
+    pub roots_cas: crate::certificate_verifier::RootCertStore,
+
+    /// client_cas defines the set of root certificate authorities
+    /// that servers use if required to verify a client certificate
+    /// by the policy in client_auth.
+    /// Used by Server to verify client's certificate
+    pub client_cas: crate::certificate_verifier::RootCertStore,
+
+    /// server_name is used to verify the hostname on the returned
+    /// certificates unless insecure_skip_verify is given.
+    pub server_name: String,
+
+    /// mtu is the length at which handshake messages will be fragmented to
+    /// fit within the maximum transmission unit (default is 1200 bytes)
+    pub mtu: usize,
+
+    /// replay_protection_window is the size of the replay attack protection window.
+    /// Duplication of the sequence number is checked in this window size.
+    /// Packet with sequence number older than this value compared to the latest
+    /// accepted packet will be discarded. (default is 64)
+    pub replay_protection_window: usize,
+}
+
+impl Default for Config {
+    fn default() -> Self {
+        Config {
+            certificates: vec![],
+            cipher_suites: vec![],
+            signature_schemes: vec![],
+            srtp_protection_profiles: vec![],
+            client_auth: ClientAuthType::default(),
+            extended_master_secret: ExtendedMasterSecretType::default(),
+            flight_interval: Duration::default(),
+            psk: None,
+            psk_identity_hint: None,
+            insecure_skip_verify: false,
+            insecure_hashes: false,
+            insecure_verification: false,
+            verify_peer_certificate: None,
+            roots_cas: crate::certificate_verifier::RootCertStore::empty(),
+            client_cas: crate::certificate_verifier::RootCertStore::empty(),
+            server_name: String::default(),
+            mtu: 0,
+            replay_protection_window: 0,
+        }
+    }
+}
+
+pub(crate) const DEFAULT_MTU: usize = 1200; // bytes
+
+// PSKCallback is called once we have the remote's psk_identity_hint.
+// If the remote provided none it will be nil
+pub(crate) type PskCallback =
+    Arc<dyn (Fn(&[u8]) -> Pin<Box<dyn Future<Output = Result<Vec<u8>>> + Send>>) + Send + Sync>;
+
+// ClientAuthType declares the policy the server will follow for
+// TLS Client Authentication.
+#[derive(Default, Copy, Clone, PartialEq, Eq)]
+pub enum ClientAuthType {
+    #[default]
+    NoClientCert = 0,
+    RequestClientCert = 1,
+    RequireAnyClientCert = 2,
+    VerifyClientCertIfGiven = 3,
+    RequireAndVerifyClientCert = 4,
+}
+
+// ExtendedMasterSecretType declares the policy the client and server
+// will follow for the Extended Master Secret extension
+#[derive(Default, PartialEq, Eq, Copy, Clone)]
+pub enum ExtendedMasterSecretType {
+    #[default]
+    Request = 0,
+    Require = 1,
+    Disable = 2,
+}
+
+pub(crate) fn validate_config(is_client: bool, config: &Config) -> Result<()> {
+    if is_client && config.psk.is_some() && config.psk_identity_hint.is_none() {
+        return Err(Error::ErrPskAndIdentityMustBeSetForClient);
+    }
+
+    if !is_client && config.psk.is_none() && config.certificates.is_empty() {
+        return Err(Error::ErrServerMustHaveCertificate);
+    }
+
+    if !config.certificates.is_empty() && config.psk.is_some() {
+        return Err(Error::ErrPskAndCertificate);
+    }
+
+    if config.psk_identity_hint.is_some() && config.psk.is_none() {
+        return Err(Error::ErrIdentityNoPsk);
+    }
+
+    for cert in &config.certificates {
+        match cert.private_key.kind {
+            CryptoPrivateKeyKind::Ed25519(_) => {}
+            CryptoPrivateKeyKind::Ecdsa256(_) => {}
+            _ => return Err(Error::ErrInvalidPrivateKey),
+        }
+    }
+
+    parse_cipher_suites(
+        &config.cipher_suites,
+        config.psk.is_none(),
+        config.psk.is_some(),
+    )?;
+
+    Ok(())
+}

libs/dtls/src/content.rs

@@ -0,0 +1,85 @@
+use std::io::{Read, Write};
+
+use super::alert::*;
+use super::application_data::*;
+use super::change_cipher_spec::*;
+use super::handshake::*;
+use crate::error::*;
+
+/// ## Specifications
+///
+/// * [RFC 4346 §6.2.1]
+///
+/// [RFC 4346 §6.2.1]: https://tools.ietf.org/html/rfc4346#section-6.2.1
+#[derive(Default, Copy, Clone, PartialEq, Eq, Debug)]
+pub enum ContentType {
+    ChangeCipherSpec = 20,
+    Alert = 21,
+    Handshake = 22,
+    ApplicationData = 23,
+    #[default]
+    Invalid,
+}
+
+impl From<u8> for ContentType {
+    fn from(val: u8) -> Self {
+        match val {
+            20 => ContentType::ChangeCipherSpec,
+            21 => ContentType::Alert,
+            22 => ContentType::Handshake,
+            23 => ContentType::ApplicationData,
+            _ => ContentType::Invalid,
+        }
+    }
+}
+
+#[derive(PartialEq, Debug, Clone)]
+pub enum Content {
+    ChangeCipherSpec(ChangeCipherSpec),
+    Alert(Alert),
+    Handshake(Handshake),
+    ApplicationData(ApplicationData),
+}
+
+impl Content {
+    pub fn content_type(&self) -> ContentType {
+        match self {
+            Content::ChangeCipherSpec(c) => c.content_type(),
+            Content::Alert(c) => c.content_type(),
+            Content::Handshake(c) => c.content_type(),
+            Content::ApplicationData(c) => c.content_type(),
+        }
+    }
+
+    pub fn size(&self) -> usize {
+        match self {
+            Content::ChangeCipherSpec(c) => c.size(),
+            Content::Alert(c) => c.size(),
+            Content::Handshake(c) => c.size(),
+            Content::ApplicationData(c) => c.size(),
+        }
+    }
+
+    pub fn marshal<W: Write>(&self, writer: &mut W) -> Result<()> {
+        match self {
+            Content::ChangeCipherSpec(c) => c.marshal(writer),
+            Content::Alert(c) => c.marshal(writer),
+            Content::Handshake(c) => c.marshal(writer),
+            Content::ApplicationData(c) => c.marshal(writer),
+        }
+    }
+
+    pub fn unmarshal<R: Read>(content_type: ContentType, reader: &mut R) -> Result<Self> {
+        match content_type {
+            ContentType::ChangeCipherSpec => Ok(Content::ChangeCipherSpec(
+                ChangeCipherSpec::unmarshal(reader)?,
+            )),
+            ContentType::Alert => Ok(Content::Alert(Alert::unmarshal(reader)?)),
+            ContentType::Handshake => Ok(Content::Handshake(Handshake::unmarshal(reader)?)),
+            ContentType::ApplicationData => Ok(Content::ApplicationData(
+                ApplicationData::unmarshal(reader)?,
+            )),
+            _ => Err(Error::ErrInvalidContentType),
+        }
+    }
+}

libs/dtls/src/crypto/crypto_cbc.rs

@@ -0,0 +1,136 @@
+// AES-CBC (Cipher Block Chaining)
+// First historic block cipher for AES.
+// CBC mode is insecure and must not be used. It’s been progressively deprecated and
+// removed from SSL libraries.
+// Introduced with TLS 1.0 year 2002. Superseded by GCM in TLS 1.2 year 2008.
+// Removed in TLS 1.3 year 2018.
+// RFC 3268 year 2002 https://tools.ietf.org/html/rfc3268
+
+// https://github.com/RustCrypto/block-ciphers
+
+use aes::cipher::{BlockDecryptMut, BlockEncryptMut, KeyIvInit};
+use p256::elliptic_curve::subtle::ConstantTimeEq;
+use rand::Rng;
+use std::io::Cursor;
+use std::ops::Not;
+
+use super::padding::DtlsPadding;
+use crate::content::*;
+use crate::error::*;
+use crate::prf::*;
+use crate::record_layer::record_layer_header::*;
+type Aes256CbcEnc = cbc::Encryptor<aes::Aes256>;
+type Aes256CbcDec = cbc::Decryptor<aes::Aes256>;
+
+// State needed to handle encrypted input/output
+#[derive(Clone)]
+pub struct CryptoCbc {
+    local_key: Vec<u8>,
+    remote_key: Vec<u8>,
+    write_mac: Vec<u8>,
+    read_mac: Vec<u8>,
+}
+
+impl CryptoCbc {
+    const BLOCK_SIZE: usize = 16;
+    const MAC_SIZE: usize = 20;
+
+    pub fn new(
+        local_key: &[u8],
+        local_mac: &[u8],
+        remote_key: &[u8],
+        remote_mac: &[u8],
+    ) -> Result<Self> {
+        Ok(CryptoCbc {
+            local_key: local_key.to_vec(),
+            write_mac: local_mac.to_vec(),
+
+            remote_key: remote_key.to_vec(),
+            read_mac: remote_mac.to_vec(),
+        })
+    }
+
+    pub fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>> {
+        let mut payload = raw[RECORD_LAYER_HEADER_SIZE..].to_vec();
+        let raw = &raw[..RECORD_LAYER_HEADER_SIZE];
+
+        // Generate + Append MAC
+        let h = pkt_rlh;
+
+        let mac = prf_mac(
+            h.epoch,
+            h.sequence_number,
+            h.content_type,
+            h.protocol_version,
+            &payload,
+            &self.write_mac,
+        )?;
+        payload.extend_from_slice(&mac);
+
+        let mut iv: Vec<u8> = vec![0; Self::BLOCK_SIZE];
+        rand::rng().fill(iv.as_mut_slice());
+
+        let write_cbc = Aes256CbcEnc::new_from_slices(&self.local_key, &iv)?;
+        let encrypted = write_cbc.encrypt_padded_vec_mut::<DtlsPadding>(&payload);
+
+        // Prepend unencrypte header with encrypted payload
+        let mut r = vec![];
+        r.extend_from_slice(raw);
+        r.extend_from_slice(&iv);
+        r.extend_from_slice(&encrypted);
+
+        let r_len = (r.len() - RECORD_LAYER_HEADER_SIZE) as u16;
+        r[RECORD_LAYER_HEADER_SIZE - 2..RECORD_LAYER_HEADER_SIZE]
+            .copy_from_slice(&r_len.to_be_bytes());
+
+        Ok(r)
+    }
+
+    pub fn decrypt(&self, r: &[u8]) -> Result<Vec<u8>> {
+        let mut reader = Cursor::new(r);
+        let h = RecordLayerHeader::unmarshal(&mut reader)?;
+        if h.content_type == ContentType::ChangeCipherSpec {
+            // Nothing to encrypt with ChangeCipherSpec
+            return Ok(r.to_vec());
+        }
+
+        if r.len() < RECORD_LAYER_HEADER_SIZE + Self::BLOCK_SIZE {
+            return Err(Error::ErrInvalidPacketLength);
+        }
+
+        let body = &r[RECORD_LAYER_HEADER_SIZE..];
+        let iv = &body[0..Self::BLOCK_SIZE];
+        let body = &body[Self::BLOCK_SIZE..];
+
+        if body.is_empty() || !body.len().is_multiple_of(Self::BLOCK_SIZE) {
+            return Err(Error::ErrInvalidPacketLength);
+        }
+
+        let read_cbc = Aes256CbcDec::new_from_slices(&self.remote_key, iv)?;
+
+        let decrypted = read_cbc
+            .decrypt_padded_vec_mut::<DtlsPadding>(body)
+            .map_err(|_| Error::ErrInvalidPacketLength)?;
+
+        let recv_mac = &decrypted[decrypted.len() - Self::MAC_SIZE..];
+        let decrypted = &decrypted[0..decrypted.len() - Self::MAC_SIZE];
+        let mac = prf_mac(
+            h.epoch,
+            h.sequence_number,
+            h.content_type,
+            h.protocol_version,
+            decrypted,
+            &self.read_mac,
+        )?;
+
+        if recv_mac.ct_eq(&mac).not().into() {
+            return Err(Error::ErrInvalidMac);
+        }
+
+        let mut d = Vec::with_capacity(RECORD_LAYER_HEADER_SIZE + decrypted.len());
+        d.extend_from_slice(&r[..RECORD_LAYER_HEADER_SIZE]);
+        d.extend_from_slice(decrypted);
+
+        Ok(d)
+    }
+}

libs/dtls/src/crypto/crypto_ccm.rs

@@ -0,0 +1,188 @@
+// AES-CCM (Counter with CBC-MAC)
+// Alternative to GCM mode.
+// Available in OpenSSL as of TLS 1.3 (2018), but disabled by default.
+// Two AES computations per block, thus expected to be somewhat slower than AES-GCM.
+// RFC 6655 year 2012 https://tools.ietf.org/html/rfc6655
+// Much lower adoption, probably because it came after GCM and offer no significant benefit.
+
+// https://github.com/RustCrypto/AEADs
+// https://docs.rs/ccm/0.3.0/ccm/ Or https://crates.io/crates/aes-ccm?
+
+use std::io::Cursor;
+
+use aes::Aes128;
+use ccm::aead::generic_array::GenericArray;
+use ccm::aead::AeadInPlace;
+use ccm::consts::{U12, U16, U8};
+use ccm::Ccm;
+use ccm::KeyInit;
+use rand::Rng;
+
+use super::*;
+use crate::content::*;
+use crate::error::*;
+use crate::record_layer::record_layer_header::*;
+
+const CRYPTO_CCM_8_TAG_LENGTH: usize = 8;
+const CRYPTO_CCM_TAG_LENGTH: usize = 16;
+const CRYPTO_CCM_NONCE_LENGTH: usize = 12;
+
+type AesCcm8 = Ccm<Aes128, U8, U12>;
+type AesCcm = Ccm<Aes128, U16, U12>;
+
+#[derive(Clone)]
+pub enum CryptoCcmTagLen {
+    CryptoCcm8TagLength,
+    CryptoCcmTagLength,
+}
+
+enum CryptoCcmType {
+    CryptoCcm8(AesCcm8),
+    CryptoCcm(AesCcm),
+}
+
+// State needed to handle encrypted input/output
+pub struct CryptoCcm {
+    local_ccm: CryptoCcmType,
+    remote_ccm: CryptoCcmType,
+    local_write_iv: Vec<u8>,
+    remote_write_iv: Vec<u8>,
+    // used by clone()
+    local_write_key: Vec<u8>,
+    remote_write_key: Vec<u8>,
+}
+
+impl Clone for CryptoCcm {
+    fn clone(&self) -> Self {
+        match self.local_ccm {
+            CryptoCcmType::CryptoCcm(_) => Self::new(
+                &CryptoCcmTagLen::CryptoCcmTagLength,
+                &self.local_write_key,
+                &self.local_write_iv,
+                &self.remote_write_key,
+                &self.remote_write_iv,
+            ),
+            CryptoCcmType::CryptoCcm8(_) => Self::new(
+                &CryptoCcmTagLen::CryptoCcm8TagLength,
+                &self.local_write_key,
+                &self.local_write_iv,
+                &self.remote_write_key,
+                &self.remote_write_iv,
+            ),
+        }
+    }
+}
+
+impl CryptoCcm {
+    pub fn new(
+        tag_len: &CryptoCcmTagLen,
+        local_key: &[u8],
+        local_write_iv: &[u8],
+        remote_key: &[u8],
+        remote_write_iv: &[u8],
+    ) -> Self {
+        let key = GenericArray::from_slice(local_key);
+        let local_ccm = match tag_len {
+            CryptoCcmTagLen::CryptoCcmTagLength => CryptoCcmType::CryptoCcm(AesCcm::new(key)),
+            CryptoCcmTagLen::CryptoCcm8TagLength => CryptoCcmType::CryptoCcm8(AesCcm8::new(key)),
+        };
+
+        let key = GenericArray::from_slice(remote_key);
+        let remote_ccm = match tag_len {
+            CryptoCcmTagLen::CryptoCcmTagLength => CryptoCcmType::CryptoCcm(AesCcm::new(key)),
+            CryptoCcmTagLen::CryptoCcm8TagLength => CryptoCcmType::CryptoCcm8(AesCcm8::new(key)),
+        };
+
+        CryptoCcm {
+            local_ccm,
+            local_write_key: local_key.to_vec(),
+            local_write_iv: local_write_iv.to_vec(),
+            remote_ccm,
+            remote_write_key: remote_key.to_vec(),
+            remote_write_iv: remote_write_iv.to_vec(),
+        }
+    }
+
+    pub fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>> {
+        let payload = &raw[RECORD_LAYER_HEADER_SIZE..];
+        let raw = &raw[..RECORD_LAYER_HEADER_SIZE];
+
+        let mut nonce = vec![0u8; CRYPTO_CCM_NONCE_LENGTH];
+        nonce[..4].copy_from_slice(&self.local_write_iv[..4]);
+        rand::rng().fill(&mut nonce[4..]);
+        let nonce = GenericArray::from_slice(&nonce);
+
+        let additional_data = generate_aead_additional_data(pkt_rlh, payload.len());
+
+        let mut buffer: Vec<u8> = Vec::new();
+        buffer.extend_from_slice(payload);
+
+        match &self.local_ccm {
+            CryptoCcmType::CryptoCcm(ccm) => {
+                ccm.encrypt_in_place(nonce, &additional_data, &mut buffer)
+                    .map_err(|e| Error::Other(e.to_string()))?;
+            }
+            CryptoCcmType::CryptoCcm8(ccm8) => {
+                ccm8.encrypt_in_place(nonce, &additional_data, &mut buffer)
+                    .map_err(|e| Error::Other(e.to_string()))?;
+            }
+        }
+
+        let mut r = Vec::with_capacity(raw.len() + nonce.len() + buffer.len());
+
+        r.extend_from_slice(raw);
+        r.extend_from_slice(&nonce[4..]);
+        r.extend_from_slice(&buffer);
+
+        // Update recordLayer size to include explicit nonce
+        let r_len = (r.len() - RECORD_LAYER_HEADER_SIZE) as u16;
+        r[RECORD_LAYER_HEADER_SIZE - 2..RECORD_LAYER_HEADER_SIZE]
+            .copy_from_slice(&r_len.to_be_bytes());
+
+        Ok(r)
+    }
+
+    pub fn decrypt(&self, r: &[u8]) -> Result<Vec<u8>> {
+        let mut reader = Cursor::new(r);
+        let h = RecordLayerHeader::unmarshal(&mut reader)?;
+        if h.content_type == ContentType::ChangeCipherSpec {
+            // Nothing to encrypt with ChangeCipherSpec
+            return Ok(r.to_vec());
+        }
+
+        if r.len() <= (RECORD_LAYER_HEADER_SIZE + 8) {
+            return Err(Error::ErrNotEnoughRoomForNonce);
+        }
+
+        let mut nonce = vec![];
+        nonce.extend_from_slice(&self.remote_write_iv[..4]);
+        nonce.extend_from_slice(&r[RECORD_LAYER_HEADER_SIZE..RECORD_LAYER_HEADER_SIZE + 8]);
+        let nonce = GenericArray::from_slice(&nonce);
+
+        let out = &r[RECORD_LAYER_HEADER_SIZE + 8..];
+
+        let mut buffer: Vec<u8> = Vec::new();
+        buffer.extend_from_slice(out);
+
+        match &self.remote_ccm {
+            CryptoCcmType::CryptoCcm(ccm) => {
+                let additional_data =
+                    generate_aead_additional_data(&h, out.len() - CRYPTO_CCM_TAG_LENGTH);
+                ccm.decrypt_in_place(nonce, &additional_data, &mut buffer)
+                    .map_err(|e| Error::Other(e.to_string()))?;
+            }
+            CryptoCcmType::CryptoCcm8(ccm8) => {
+                let additional_data =
+                    generate_aead_additional_data(&h, out.len() - CRYPTO_CCM_8_TAG_LENGTH);
+                ccm8.decrypt_in_place(nonce, &additional_data, &mut buffer)
+                    .map_err(|e| Error::Other(e.to_string()))?;
+            }
+        }
+
+        let mut d = Vec::with_capacity(RECORD_LAYER_HEADER_SIZE + buffer.len());
+        d.extend_from_slice(&r[..RECORD_LAYER_HEADER_SIZE]);
+        d.extend_from_slice(&buffer);
+
+        Ok(d)
+    }
+}

libs/dtls/src/crypto/crypto_chacha20.rs

@@ -0,0 +1,123 @@
+use std::io::Cursor;
+
+use chacha20poly1305::aead::generic_array::GenericArray;
+use chacha20poly1305::aead::AeadInPlace;
+use chacha20poly1305::{ChaCha20Poly1305, KeyInit};
+
+use super::*;
+use crate::content::*;
+use crate::error::*;
+use crate::record_layer::record_layer_header::*; // what about Aes256Gcm?
+
+const CRYPTO_CHACHA20_TAG_LENGTH: usize = 16;
+const CRYPTO_CHACHA20_NONCE_LENGTH: usize = 12;
+
+// State needed to handle encrypted input/output
+#[derive(Clone)]
+pub struct CryptoChaCha20 {
+    local_cc: ChaCha20Poly1305,
+    remote_cc: ChaCha20Poly1305,
+    local_key: Vec<u8>,
+    remote_key: Vec<u8>,
+    local_write_iv: Vec<u8>,
+    remote_write_iv: Vec<u8>,
+}
+
+fn noncegen(nonce: &mut [u8], epoch: u16, seqnum: u64) {
+    let epoch: u64 = epoch.into();
+    let seqnum = (seqnum & 0xFFFFFFFFFFFF) | (epoch << 48);
+    for i in 0..8 {
+        nonce[i + 4] ^= ((seqnum >> (8 * (7 - i))) & 0xFF) as u8;
+    }
+}
+
+impl CryptoChaCha20 {
+    pub fn new(
+        local_key: &[u8],
+        local_write_iv: &[u8],
+        remote_key: &[u8],
+        remote_write_iv: &[u8],
+    ) -> Self {
+        let key = GenericArray::from_slice(local_key);
+        let local_cc = ChaCha20Poly1305::new(key);
+
+        let key = GenericArray::from_slice(remote_key);
+        let remote_cc = ChaCha20Poly1305::new(key);
+
+        CryptoChaCha20 {
+            local_cc,
+            local_write_iv: local_write_iv.to_vec(),
+            remote_cc,
+            local_key: local_key.to_vec(),
+            remote_key: remote_key.to_vec(),
+            remote_write_iv: remote_write_iv.to_vec(),
+        }
+    }
+
+    pub fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>> {
+        let payload = &raw[RECORD_LAYER_HEADER_SIZE..];
+        let raw = &raw[..RECORD_LAYER_HEADER_SIZE];
+
+        let mut nonce = vec![0u8; CRYPTO_CHACHA20_NONCE_LENGTH];
+        nonce[..CRYPTO_CHACHA20_NONCE_LENGTH]
+            .copy_from_slice(&self.local_write_iv[..CRYPTO_CHACHA20_NONCE_LENGTH]);
+
+        noncegen(&mut nonce[..], pkt_rlh.epoch, pkt_rlh.sequence_number);
+        let nonce = GenericArray::from_slice(&nonce);
+
+        let additional_data = generate_aead_additional_data(pkt_rlh, payload.len());
+
+        let mut buffer: Vec<u8> = Vec::new();
+        buffer.extend_from_slice(payload);
+
+        let tag = self
+            .local_cc
+            .encrypt_in_place_detached(nonce, &additional_data, &mut buffer)
+            .map_err(|e| Error::Other(e.to_string()))?;
+
+        let mut r = Vec::with_capacity(raw.len() + buffer.len() + tag.len());
+        r.extend_from_slice(raw);
+        r.extend_from_slice(&buffer);
+        r.extend_from_slice(&tag);
+
+        // Update recordLayer size to include explicit nonce
+        let r_len = (r.len() - RECORD_LAYER_HEADER_SIZE) as u16;
+        r[RECORD_LAYER_HEADER_SIZE - 2..RECORD_LAYER_HEADER_SIZE]
+            .copy_from_slice(&r_len.to_be_bytes());
+
+        Ok(r)
+    }
+
+    pub fn decrypt(&self, r: &[u8]) -> Result<Vec<u8>> {
+        let mut reader = Cursor::new(r);
+        let h = RecordLayerHeader::unmarshal(&mut reader)?;
+        if h.content_type == ContentType::ChangeCipherSpec {
+            // Nothing to encrypt with ChangeCipherSpec
+            return Ok(r.to_vec());
+        }
+
+        let mut nonce = vec![];
+        nonce.extend_from_slice(&self.remote_write_iv[..]);
+
+        noncegen(&mut nonce[..], h.epoch, h.sequence_number);
+        let nonce = GenericArray::from_slice(&nonce);
+
+        let out = &r[RECORD_LAYER_HEADER_SIZE..];
+
+        let additional_data =
+            generate_aead_additional_data(&h, out.len() - CRYPTO_CHACHA20_TAG_LENGTH);
+
+        let mut buffer: Vec<u8> = Vec::new();
+        buffer.extend_from_slice(out);
+
+        self.remote_cc
+            .decrypt_in_place(nonce, &additional_data, &mut buffer)
+            .map_err(|e| Error::Other(e.to_string()))?;
+
+        let mut d = Vec::with_capacity(RECORD_LAYER_HEADER_SIZE + buffer.len());
+        d.extend_from_slice(&r[..RECORD_LAYER_HEADER_SIZE]);
+        d.extend_from_slice(&buffer);
+
+        Ok(d)
+    }
+}

libs/dtls/src/crypto/crypto_gcm.rs

@@ -0,0 +1,119 @@
+// AES-GCM (Galois Counter Mode)
+// The most widely used block cipher worldwide.
+// Mandatory as of TLS 1.2 (2008) and used by default by most clients.
+// RFC 5288 year 2008 https://tools.ietf.org/html/rfc5288
+
+// https://github.com/RustCrypto/AEADs
+// https://docs.rs/aes-gcm/0.8.0/aes_gcm/
+
+use std::io::Cursor;
+
+use aes_gcm::aead::generic_array::GenericArray;
+use aes_gcm::aead::AeadInPlace;
+use aes_gcm::{Aes128Gcm, KeyInit};
+use rand::Rng;
+
+use super::*;
+use crate::content::*;
+use crate::error::*;
+use crate::record_layer::record_layer_header::*; // what about Aes256Gcm?
+
+const CRYPTO_GCM_TAG_LENGTH: usize = 16;
+const CRYPTO_GCM_NONCE_LENGTH: usize = 12;
+
+// State needed to handle encrypted input/output
+#[derive(Clone)]
+pub struct CryptoGcm {
+    local_gcm: Aes128Gcm,
+    remote_gcm: Aes128Gcm,
+    local_write_iv: Vec<u8>,
+    remote_write_iv: Vec<u8>,
+}
+
+impl CryptoGcm {
+    pub fn new(
+        local_key: &[u8],
+        local_write_iv: &[u8],
+        remote_key: &[u8],
+        remote_write_iv: &[u8],
+    ) -> Self {
+        let key = GenericArray::from_slice(local_key);
+        let local_gcm = Aes128Gcm::new(key);
+
+        let key = GenericArray::from_slice(remote_key);
+        let remote_gcm = Aes128Gcm::new(key);
+
+        CryptoGcm {
+            local_gcm,
+            local_write_iv: local_write_iv.to_vec(),
+            remote_gcm,
+            remote_write_iv: remote_write_iv.to_vec(),
+        }
+    }
+
+    pub fn encrypt(&self, pkt_rlh: &RecordLayerHeader, raw: &[u8]) -> Result<Vec<u8>> {
+        let payload = &raw[RECORD_LAYER_HEADER_SIZE..];
+        let raw = &raw[..RECORD_LAYER_HEADER_SIZE];
+
+        let mut nonce = vec![0u8; CRYPTO_GCM_NONCE_LENGTH];
+        nonce[..4].copy_from_slice(&self.local_write_iv[..4]);
+        rand::rng().fill(&mut nonce[4..]);
+        let nonce = GenericArray::from_slice(&nonce);
+
+        let additional_data = generate_aead_additional_data(pkt_rlh, payload.len());
+
+        let mut buffer: Vec<u8> = Vec::new();
+        buffer.extend_from_slice(payload);
+
+        self.local_gcm
+            .encrypt_in_place(nonce, &additional_data, &mut buffer)
+            .map_err(|e| Error::Other(e.to_string()))?;
+
+        let mut r = Vec::with_capacity(raw.len() + nonce.len() + buffer.len());
+        r.extend_from_slice(raw);
+        r.extend_from_slice(&nonce[4..]);
+        r.extend_from_slice(&buffer);
+
+        // Update recordLayer size to include explicit nonce
+        let r_len = (r.len() - RECORD_LAYER_HEADER_SIZE) as u16;
+        r[RECORD_LAYER_HEADER_SIZE - 2..RECORD_LAYER_HEADER_SIZE]
+            .copy_from_slice(&r_len.to_be_bytes());
+
+        Ok(r)
+    }
+
+    pub fn decrypt(&self, r: &[u8]) -> Result<Vec<u8>> {
+        let mut reader = Cursor::new(r);
+        let h = RecordLayerHeader::unmarshal(&mut reader)?;
+        if h.content_type == ContentType::ChangeCipherSpec {
+            // Nothing to encrypt with ChangeCipherSpec
+            return Ok(r.to_vec());
+        }
+
+        if r.len() <= (RECORD_LAYER_HEADER_SIZE + 8) {
+            return Err(Error::ErrNotEnoughRoomForNonce);
+        }
+
+        let mut nonce = vec![];
+        nonce.extend_from_slice(&self.remote_write_iv[..4]);
+        nonce.extend_from_slice(&r[RECORD_LAYER_HEADER_SIZE..RECORD_LAYER_HEADER_SIZE + 8]);
+        let nonce = GenericArray::from_slice(&nonce);
+
+        let out = &r[RECORD_LAYER_HEADER_SIZE + 8..];
+
+        let additional_data = generate_aead_additional_data(&h, out.len() - CRYPTO_GCM_TAG_LENGTH);
+
+        let mut buffer: Vec<u8> = Vec::new();
+        buffer.extend_from_slice(out);
+
+        self.remote_gcm
+            .decrypt_in_place(nonce, &additional_data, &mut buffer)
+            .map_err(|e| Error::Other(e.to_string()))?;
+
+        let mut d = Vec::with_capacity(RECORD_LAYER_HEADER_SIZE + buffer.len());
+        d.extend_from_slice(&r[..RECORD_LAYER_HEADER_SIZE]);
+        d.extend_from_slice(&buffer);
+
+        Ok(d)
+    }
+}

libs/dtls/src/crypto/crypto_test.rs

@@ -0,0 +1,221 @@
+use std::io::Cursor;
+
+use x509_parser::pem::Pem;
+
+use super::crypto_ccm::*;
+use super::*;
+use crate::content::ContentType;
+use crate::record_layer::record_layer_header::{ProtocolVersion, RECORD_LAYER_HEADER_SIZE};
+
+const RAW_PRIVATE_KEY: &str = "
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
+";
+
+#[test]
+fn test_generate_key_signature() -> Result<()> {
+    let reader = Cursor::new(RAW_PRIVATE_KEY.as_bytes());
+    let pem = match Pem::read(reader) {
+        Ok((pem, _)) => pem,
+        Err(_) => return Err(Error::Other("Pem::read error".to_owned())),
+    };
+    //let private_key = rsa::RSAPrivateKey::from_pkcs1(&pem.contents)?;
+
+    let client_random = vec![
+        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
+        0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
+        0x1e, 0x1f,
+    ];
+    let server_random = vec![
+        0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e,
+        0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d,
+        0x8e, 0x8f,
+    ];
+    let public_key = vec![
+        0x20, 0x9f, 0xd7, 0xad, 0x6d, 0xcf, 0xf4, 0x29, 0x8d, 0xd3, 0xf9, 0x6d, 0x5b, 0x1b, 0x2a,
+        0xf9, 0x10, 0xa0, 0x53, 0x5b, 0x14, 0x88, 0xd7, 0xf8, 0xfa, 0xbb, 0x34, 0x9a, 0x98, 0x28,
+        0x80, 0xb6, 0x15,
+    ];
+    let expected_signature = vec![
+        0x6f, 0x47, 0x97, 0x85, 0xcc, 0x76, 0x50, 0x93, 0xbd, 0xe2, 0x6a, 0x69, 0x0b, 0xc3, 0x03,
+        0xd1, 0xb7, 0xe4, 0xab, 0x88, 0x7b, 0xa6, 0x52, 0x80, 0xdf, 0xaa, 0x25, 0x7a, 0xdb, 0x29,
+        0x32, 0xe4, 0xd8, 0x28, 0x28, 0xb3, 0xe8, 0x04, 0x3c, 0x38, 0x16, 0xfc, 0x78, 0xe9, 0x15,
+        0x7b, 0xc5, 0xbd, 0x7d, 0xfc, 0xcd, 0x83, 0x00, 0x57, 0x4a, 0x3c, 0x23, 0x85, 0x75, 0x6b,
+        0x37, 0xd5, 0x89, 0x72, 0x73, 0xf0, 0x44, 0x8c, 0x00, 0x70, 0x1f, 0x6e, 0xa2, 0x81, 0xd0,
+        0x09, 0xc5, 0x20, 0x36, 0xab, 0x23, 0x09, 0x40, 0x1f, 0x4d, 0x45, 0x96, 0x62, 0xbb, 0x81,
+        0xb0, 0x30, 0x72, 0xad, 0x3a, 0x0a, 0xac, 0x31, 0x63, 0x40, 0x52, 0x0a, 0x27, 0xf3, 0x34,
+        0xde, 0x27, 0x7d, 0xb7, 0x54, 0xff, 0x0f, 0x9f, 0x5a, 0xfe, 0x07, 0x0f, 0x4e, 0x9f, 0x53,
+        0x04, 0x34, 0x62, 0xf4, 0x30, 0x74, 0x83, 0x35, 0xfc, 0xe4, 0x7e, 0xbf, 0x5a, 0xc4, 0x52,
+        0xd0, 0xea, 0xf9, 0x61, 0x4e, 0xf5, 0x1c, 0x0e, 0x58, 0x02, 0x71, 0xfb, 0x1f, 0x34, 0x55,
+        0xe8, 0x36, 0x70, 0x3c, 0xc1, 0xcb, 0xc9, 0xb7, 0xbb, 0xb5, 0x1c, 0x44, 0x9a, 0x6d, 0x88,
+        0x78, 0x98, 0xd4, 0x91, 0x2e, 0xeb, 0x98, 0x81, 0x23, 0x30, 0x73, 0x39, 0x43, 0xd5, 0xbb,
+        0x70, 0x39, 0xba, 0x1f, 0xdb, 0x70, 0x9f, 0x91, 0x83, 0x56, 0xc2, 0xde, 0xed, 0x17, 0x6d,
+        0x2c, 0x3e, 0x21, 0xea, 0x36, 0xb4, 0x91, 0xd8, 0x31, 0x05, 0x60, 0x90, 0xfd, 0xc6, 0x74,
+        0xa9, 0x7b, 0x18, 0xfc, 0x1c, 0x6a, 0x1c, 0x6e, 0xec, 0xd3, 0xc1, 0xc0, 0x0d, 0x11, 0x25,
+        0x48, 0x37, 0x3d, 0x45, 0x11, 0xa2, 0x31, 0x14, 0x0a, 0x66, 0x9f, 0xd8, 0xac, 0x74, 0xa2,
+        0xcd, 0xc8, 0x79, 0xb3, 0x9e, 0xc6, 0x66, 0x25, 0xcf, 0x2c, 0x87, 0x5e, 0x5c, 0x36, 0x75,
+        0x86,
+    ];
+
+    let signature = generate_key_signature(
+        &client_random,
+        &server_random,
+        &public_key,
+        NamedCurve::X25519,
+        &CryptoPrivateKey {
+            kind: CryptoPrivateKeyKind::Rsa256(
+                ring::rsa::KeyPair::from_der(&pem.contents)
+                    .map_err(|e| Error::Other(e.to_string()))?,
+            ),
+            serialized_der: pem.contents.clone(),
+        }, //hashAlgorithmSHA256,
+    )?;
+
+    assert_eq!(
+        signature, expected_signature,
+        "Signature generation failed \nexp {expected_signature:?} \nactual {signature:?} "
+    );
+
+    Ok(())
+}
+
+#[test]
+fn test_ccm_encryption_and_decryption() -> Result<()> {
+    let key = vec![
+        0x18, 0x78, 0xac, 0xc2, 0x2a, 0xd8, 0xbd, 0xd8, 0xc6, 0x01, 0xa6, 0x17, 0x12, 0x6f, 0x63,
+        0x54,
+    ];
+    let iv = vec![0x0e, 0xb2, 0x09, 0x06];
+
+    let ccm = CryptoCcm::new(&CryptoCcmTagLen::CryptoCcmTagLength, &key, &iv, &key, &iv);
+
+    let rlh = RecordLayerHeader {
+        content_type: ContentType::ApplicationData,
+        protocol_version: ProtocolVersion {
+            major: 0xfe,
+            minor: 0xff,
+        },
+        epoch: 0,
+        sequence_number: 18,
+        content_len: 3,
+    };
+
+    let raw = vec![
+        0x17, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x03, 0xff, 0xaa,
+        0xbb,
+    ];
+
+    let cipher_text = ccm.encrypt(&rlh, &raw)?;
+
+    assert_eq!(
+        &cipher_text[RECORD_LAYER_HEADER_SIZE - 2..RECORD_LAYER_HEADER_SIZE],
+        [0, 27],
+        "RecordLayer size updating failed \nexp: {:?} \nactual {:?} ",
+        [0, 27],
+        &cipher_text[RECORD_LAYER_HEADER_SIZE - 2..RECORD_LAYER_HEADER_SIZE]
+    );
+
+    let plain_text = ccm.decrypt(&cipher_text)?;
+
+    assert_eq!(
+        raw[RECORD_LAYER_HEADER_SIZE..],
+        plain_text[RECORD_LAYER_HEADER_SIZE..],
+        "Decryption failed \nexp: {:?} \nactual {:?} ",
+        &raw[RECORD_LAYER_HEADER_SIZE..],
+        &plain_text[RECORD_LAYER_HEADER_SIZE..]
+    );
+
+    Ok(())
+}
+
+#[test]
+fn test_certificate_verify() -> Result<()> {
+    let plain_text: Vec<u8> = vec![
+        0x6f, 0x47, 0x97, 0x85, 0xcc, 0x76, 0x50, 0x93, 0xbd, 0xe2, 0x6a, 0x69, 0x0b, 0xc3, 0x03,
+        0xd1, 0xb7, 0xe4, 0xab, 0x88, 0x7b, 0xa6, 0x52, 0x80, 0xdf, 0xaa, 0x25, 0x7a, 0xdb, 0x29,
+        0x32, 0xe4, 0xd8, 0x28, 0x28, 0xb3, 0xe8, 0x04, 0x3c, 0x38, 0x16, 0xfc, 0x78, 0xe9, 0x15,
+        0x7b, 0xc5, 0xbd, 0x7d, 0xfc, 0xcd, 0x83, 0x00, 0x57, 0x4a, 0x3c, 0x23, 0x85, 0x75, 0x6b,
+        0x37, 0xd5, 0x89, 0x72, 0x73, 0xf0, 0x44, 0x8c, 0x00, 0x70, 0x1f, 0x6e, 0xa2, 0x81, 0xd0,
+        0x09, 0xc5, 0x20, 0x36, 0xab, 0x23, 0x09, 0x40, 0x1f, 0x4d, 0x45, 0x96, 0x62, 0xbb, 0x81,
+        0xb0, 0x30, 0x72, 0xad, 0x3a, 0x0a, 0xac, 0x31, 0x63, 0x40, 0x52, 0x0a, 0x27, 0xf3, 0x34,
+        0xde, 0x27, 0x7d, 0xb7, 0x54, 0xff, 0x0f, 0x9f, 0x5a, 0xfe, 0x07, 0x0f, 0x4e, 0x9f, 0x53,
+        0x04, 0x34, 0x62, 0xf4, 0x30, 0x74, 0x83, 0x35, 0xfc, 0xe4, 0x7e, 0xbf, 0x5a, 0xc4, 0x52,
+        0xd0, 0xea, 0xf9, 0x61, 0x4e, 0xf5, 0x1c, 0x0e, 0x58, 0x02, 0x71, 0xfb, 0x1f, 0x34, 0x55,
+        0xe8, 0x36, 0x70, 0x3c, 0xc1, 0xcb, 0xc9, 0xb7, 0xbb, 0xb5, 0x1c, 0x44, 0x9a, 0x6d, 0x88,
+        0x78, 0x98, 0xd4, 0x91, 0x2e, 0xeb, 0x98, 0x81, 0x23, 0x30, 0x73, 0x39, 0x43, 0xd5, 0xbb,
+        0x70, 0x39, 0xba, 0x1f, 0xdb, 0x70, 0x9f, 0x91, 0x83, 0x56, 0xc2, 0xde, 0xed, 0x17, 0x6d,
+        0x2c, 0x3e, 0x21, 0xea, 0x36, 0xb4, 0x91, 0xd8, 0x31, 0x05, 0x60, 0x90, 0xfd, 0xc6, 0x74,
+        0xa9, 0x7b, 0x18, 0xfc, 0x1c, 0x6a, 0x1c, 0x6e, 0xec, 0xd3, 0xc1, 0xc0, 0x0d, 0x11, 0x25,
+        0x48, 0x37, 0x3d, 0x45, 0x11, 0xa2, 0x31, 0x14, 0x0a, 0x66, 0x9f, 0xd8, 0xac, 0x74, 0xa2,
+        0xcd, 0xc8, 0x79, 0xb3, 0x9e, 0xc6, 0x66, 0x25, 0xcf, 0x2c, 0x87, 0x5e, 0x5c, 0x36, 0x75,
+        0x86,
+    ];
+
+    //test ECDSA256
+    let certificate_ecdsa256 = Certificate::generate_self_signed(vec!["localhost".to_owned()])?;
+    let cert_verify_ecdsa256 =
+        generate_certificate_verify(&plain_text, &certificate_ecdsa256.private_key)?;
+    verify_certificate_verify(
+        &plain_text,
+        &SignatureHashAlgorithm {
+            hash: HashAlgorithm::Sha256,
+            signature: SignatureAlgorithm::Ecdsa,
+        },
+        &cert_verify_ecdsa256,
+        &certificate_ecdsa256
+            .certificate
+            .iter()
+            .map(|x| x.as_ref().to_owned())
+            .collect::<Vec<Vec<u8>>>(),
+        false,
+    )?;
+
+    //test ED25519
+    let certificate_ed25519 = Certificate::generate_self_signed_with_alg(
+        vec!["localhost".to_owned()],
+        &rcgen::PKCS_ED25519,
+    )?;
+    let cert_verify_ed25519 =
+        generate_certificate_verify(&plain_text, &certificate_ed25519.private_key)?;
+    verify_certificate_verify(
+        &plain_text,
+        &SignatureHashAlgorithm {
+            hash: HashAlgorithm::Sha256,
+            signature: SignatureAlgorithm::Ed25519,
+        },
+        &cert_verify_ed25519,
+        &certificate_ed25519
+            .certificate
+            .iter()
+            .map(|x| x.as_ref().to_owned())
+            .collect::<Vec<Vec<u8>>>(),
+        false,
+    )?;
+
+    Ok(())
+}

libs/dtls/src/crypto/mod.rs

@@ -0,0 +1,514 @@
+#[cfg(test)]
+mod crypto_test;
+
+pub mod crypto_cbc;
+pub mod crypto_ccm;
+pub mod crypto_chacha20;
+pub mod crypto_gcm;
+pub mod padding;
+
+use std::convert::TryFrom;
+use std::sync::Arc;
+
+use der_parser::oid;
+use der_parser::oid::Oid;
+
+use crate::certificate_verifier::CertificateVerifier;
+use rustls_pki_types::CertificateDer;
+
+use rcgen::{generate_simple_self_signed, CertifiedKey, KeyPair};
+use ring::rand::SystemRandom;
+use ring::signature::{EcdsaKeyPair, Ed25519KeyPair};
+
+use crate::curve::named_curve::*;
+use crate::error::*;
+use crate::record_layer::record_layer_header::*;
+use crate::signature_hash_algorithm::{HashAlgorithm, SignatureAlgorithm, SignatureHashAlgorithm};
+
+/// A X.509 certificate(s) used to authenticate a DTLS connection.
+#[derive(Clone, PartialEq, Debug)]
+pub struct Certificate {
+    /// DER-encoded certificates.
+    pub certificate: Vec<CertificateDer<'static>>,
+    /// Private key.
+    pub private_key: CryptoPrivateKey,
+}
+
+impl Certificate {
+    /// Generate a self-signed certificate.
+    ///
+    /// See [`rcgen::generate_simple_self_signed`].
+    pub fn generate_self_signed(subject_alt_names: impl Into<Vec<String>>) -> Result<Self> {
+        let CertifiedKey { cert, key_pair } =
+            generate_simple_self_signed(subject_alt_names).unwrap();
+        Ok(Certificate {
+            certificate: vec![cert.der().to_owned()],
+            private_key: CryptoPrivateKey::try_from(&key_pair)?,
+        })
+    }
+
+    /// Generate a self-signed certificate with the given algorithm.
+    ///
+    /// See [`rcgen::Certificate::from_params`].
+    pub fn generate_self_signed_with_alg(
+        subject_alt_names: impl Into<Vec<String>>,
+        alg: &'static rcgen::SignatureAlgorithm,
+    ) -> Result<Self> {
+        let params = rcgen::CertificateParams::new(subject_alt_names).unwrap();
+        let key_pair = rcgen::KeyPair::generate_for(alg).unwrap();
+        let cert = params.self_signed(&key_pair).unwrap();
+
+        Ok(Certificate {
+            certificate: vec![cert.der().to_owned()],
+            private_key: CryptoPrivateKey::try_from(&key_pair)?,
+        })
+    }
+
+    /// Parses a certificate from the ASCII PEM format.
+    #[cfg(feature = "pem")]
+    pub fn from_pem(pem_str: &str) -> Result<Self> {
+        let mut pems = pem::parse_many(pem_str).map_err(|e| Error::InvalidPEM(e.to_string()))?;
+        if pems.len() < 2 {
+            return Err(Error::InvalidPEM(format!(
+                "expected at least two PEM blocks, got {}",
+                pems.len()
+            )));
+        }
+        if pems[0].tag() != "PRIVATE_KEY" {
+            return Err(Error::InvalidPEM(format!(
+                "invalid tag (expected: 'PRIVATE_KEY', got: '{}')",
+                pems[0].tag()
+            )));
+        }
+
+        let keypair = KeyPair::try_from(pems[0].contents())
+            .map_err(|e| Error::InvalidPEM(format!("can't decode keypair: {e}")))?;
+
+        let mut rustls_certs = Vec::new();
+        for p in pems.drain(1..) {
+            if p.tag() != "CERTIFICATE" {
+                return Err(Error::InvalidPEM(format!(
+                    "invalid tag (expected: 'CERTIFICATE', got: '{}')",
+                    p.tag()
+                )));
+            }
+            rustls_certs.push(CertificateDer::from(p.contents().to_vec()));
+        }
+
+        Ok(Certificate {
+            certificate: rustls_certs,
+            private_key: CryptoPrivateKey::try_from(&keypair)?,
+        })
+    }
+
+    /// Serializes the certificate (including the private key) in PKCS#8 format in PEM.
+    #[cfg(feature = "pem")]
+    pub fn serialize_pem(&self) -> String {
+        let mut data = vec![pem::Pem::new(
+            "PRIVATE_KEY".to_string(),
+            self.private_key.serialized_der.clone(),
+        )];
+        for rustls_cert in &self.certificate {
+            data.push(pem::Pem::new(
+                "CERTIFICATE".to_string(),
+                rustls_cert.as_ref(),
+            ));
+        }
+        pem::encode_many(&data)
+    }
+}
+
+pub(crate) fn value_key_message(
+    client_random: &[u8],
+    server_random: &[u8],
+    public_key: &[u8],
+    named_curve: NamedCurve,
+) -> Vec<u8> {
+    let mut server_ecdh_params = vec![0u8; 4];
+    server_ecdh_params[0] = 3; // named curve
+    server_ecdh_params[1..3].copy_from_slice(&(named_curve as u16).to_be_bytes());
+    server_ecdh_params[3] = public_key.len() as u8;
+
+    let mut plaintext = vec![];
+    plaintext.extend_from_slice(client_random);
+    plaintext.extend_from_slice(server_random);
+    plaintext.extend_from_slice(&server_ecdh_params);
+    plaintext.extend_from_slice(public_key);
+
+    plaintext
+}
+
+/// Either ED25519, ECDSA or RSA keypair.
+#[derive(Debug)]
+pub enum CryptoPrivateKeyKind {
+    Ed25519(Ed25519KeyPair),
+    Ecdsa256(EcdsaKeyPair),
+    Rsa256(ring::rsa::KeyPair),
+}
+
+/// Private key.
+#[derive(Debug)]
+pub struct CryptoPrivateKey {
+    /// Keypair.
+    pub kind: CryptoPrivateKeyKind,
+    /// DER-encoded keypair.
+    pub serialized_der: Vec<u8>,
+}
+
+impl PartialEq for CryptoPrivateKey {
+    fn eq(&self, other: &Self) -> bool {
+        if self.serialized_der != other.serialized_der {
+            return false;
+        }
+
+        matches!(
+            (&self.kind, &other.kind),
+            (
+                CryptoPrivateKeyKind::Rsa256(_),
+                CryptoPrivateKeyKind::Rsa256(_)
+            ) | (
+                CryptoPrivateKeyKind::Ecdsa256(_),
+                CryptoPrivateKeyKind::Ecdsa256(_)
+            ) | (
+                CryptoPrivateKeyKind::Ed25519(_),
+                CryptoPrivateKeyKind::Ed25519(_)
+            )
+        )
+    }
+}
+
+impl Clone for CryptoPrivateKey {
+    fn clone(&self) -> Self {
+        match self.kind {
+            CryptoPrivateKeyKind::Ed25519(_) => CryptoPrivateKey {
+                kind: CryptoPrivateKeyKind::Ed25519(
+                    Ed25519KeyPair::from_pkcs8_maybe_unchecked(&self.serialized_der).unwrap(),
+                ),
+                serialized_der: self.serialized_der.clone(),
+            },
+            CryptoPrivateKeyKind::Ecdsa256(_) => CryptoPrivateKey {
+                kind: CryptoPrivateKeyKind::Ecdsa256(
+                    EcdsaKeyPair::from_pkcs8(
+                        &ring::signature::ECDSA_P256_SHA256_ASN1_SIGNING,
+                        &self.serialized_der,
+                        &SystemRandom::new(),
+                    )
+                    .unwrap(),
+                ),
+                serialized_der: self.serialized_der.clone(),
+            },
+            CryptoPrivateKeyKind::Rsa256(_) => CryptoPrivateKey {
+                kind: CryptoPrivateKeyKind::Rsa256(
+                    ring::rsa::KeyPair::from_pkcs8(&self.serialized_der).unwrap(),
+                ),
+                serialized_der: self.serialized_der.clone(),
+            },
+        }
+    }
+}
+
+impl TryFrom<&KeyPair> for CryptoPrivateKey {
+    type Error = Error;
+
+    fn try_from(key_pair: &KeyPair) -> Result<Self> {
+        Self::from_key_pair(key_pair)
+    }
+}
+
+impl CryptoPrivateKey {
+    pub fn from_key_pair(key_pair: &KeyPair) -> Result<Self> {
+        let serialized_der = key_pair.serialize_der();
+        if key_pair.is_compatible(&rcgen::PKCS_ED25519) {
+            Ok(CryptoPrivateKey {
+                kind: CryptoPrivateKeyKind::Ed25519(
+                    Ed25519KeyPair::from_pkcs8_maybe_unchecked(&serialized_der)
+                        .map_err(|e| Error::Other(e.to_string()))?,
+                ),
+                serialized_der,
+            })
+        } else if key_pair.is_compatible(&rcgen::PKCS_ECDSA_P256_SHA256) {
+            Ok(CryptoPrivateKey {
+                kind: CryptoPrivateKeyKind::Ecdsa256(
+                    EcdsaKeyPair::from_pkcs8(
+                        &ring::signature::ECDSA_P256_SHA256_ASN1_SIGNING,
+                        &serialized_der,
+                        &SystemRandom::new(),
+                    )
+                    .map_err(|e| Error::Other(e.to_string()))?,
+                ),
+                serialized_der,
+            })
+        } else if key_pair.is_compatible(&rcgen::PKCS_RSA_SHA256) {
+            Ok(CryptoPrivateKey {
+                kind: CryptoPrivateKeyKind::Rsa256(
+                    ring::rsa::KeyPair::from_pkcs8(&serialized_der)
+                        .map_err(|e| Error::Other(e.to_string()))?,
+                ),
+                serialized_der,
+            })
+        } else {
+            Err(Error::Other("Unsupported key_pair".to_owned()))
+        }
+    }
+}
+
+// If the client provided a "signature_algorithms" extension, then all
+// certificates provided by the server MUST be signed by a
+// hash/signature algorithm pair that appears in that extension
+//
+// https://tools.ietf.org/html/rfc5246#section-7.4.2
+pub(crate) fn generate_key_signature(
+    client_random: &[u8],
+    server_random: &[u8],
+    public_key: &[u8],
+    named_curve: NamedCurve,
+    private_key: &CryptoPrivateKey, /*, hash_algorithm: HashAlgorithm*/
+) -> Result<Vec<u8>> {
+    let msg = value_key_message(client_random, server_random, public_key, named_curve);
+    let signature = match &private_key.kind {
+        CryptoPrivateKeyKind::Ed25519(kp) => kp.sign(&msg).as_ref().to_vec(),
+        CryptoPrivateKeyKind::Ecdsa256(kp) => {
+            let system_random = SystemRandom::new();
+            kp.sign(&system_random, &msg)
+                .map_err(|e| Error::Other(e.to_string()))?
+                .as_ref()
+                .to_vec()
+        }
+        CryptoPrivateKeyKind::Rsa256(kp) => {
+            let system_random = SystemRandom::new();
+            let mut signature = vec![0; kp.public().modulus_len()];
+            kp.sign(
+                &ring::signature::RSA_PKCS1_SHA256,
+                &system_random,
+                &msg,
+                &mut signature,
+            )
+            .map_err(|e| Error::Other(e.to_string()))?;
+
+            signature
+        }
+    };
+
+    Ok(signature)
+}
+
+// add OID_ED25519 which is not defined in x509_parser
+pub const OID_ED25519: Oid<'static> = oid!(1.3.101 .112);
+pub const OID_ECDSA: Oid<'static> = oid!(1.2.840 .10045 .2 .1);
+
+fn verify_signature(
+    message: &[u8],
+    hash_algorithm: &SignatureHashAlgorithm,
+    remote_key_signature: &[u8],
+    raw_certificates: &[Vec<u8>],
+    insecure_verification: bool,
+) -> Result<()> {
+    if raw_certificates.is_empty() {
+        return Err(Error::ErrLengthMismatch);
+    }
+
+    let (_, certificate) = x509_parser::parse_x509_certificate(&raw_certificates[0])
+        .map_err(|e| Error::Other(e.to_string()))?;
+
+    let verify_alg: &dyn ring::signature::VerificationAlgorithm = match hash_algorithm.signature {
+        SignatureAlgorithm::Ed25519 => &ring::signature::ED25519,
+        SignatureAlgorithm::Ecdsa if hash_algorithm.hash == HashAlgorithm::Sha256 => {
+            &ring::signature::ECDSA_P256_SHA256_ASN1
+        }
+        SignatureAlgorithm::Ecdsa if hash_algorithm.hash == HashAlgorithm::Sha384 => {
+            &ring::signature::ECDSA_P384_SHA384_ASN1
+        }
+        SignatureAlgorithm::Rsa if hash_algorithm.hash == HashAlgorithm::Sha1 => {
+            &ring::signature::RSA_PKCS1_1024_8192_SHA1_FOR_LEGACY_USE_ONLY
+        }
+        SignatureAlgorithm::Rsa if (hash_algorithm.hash == HashAlgorithm::Sha256) => {
+            if remote_key_signature.len() < 256 && insecure_verification {
+                &ring::signature::RSA_PKCS1_1024_8192_SHA256_FOR_LEGACY_USE_ONLY
+            } else {
+                &ring::signature::RSA_PKCS1_2048_8192_SHA256
+            }
+        }
+        SignatureAlgorithm::Rsa if hash_algorithm.hash == HashAlgorithm::Sha384 => {
+            &ring::signature::RSA_PKCS1_2048_8192_SHA384
+        }
+        SignatureAlgorithm::Rsa if hash_algorithm.hash == HashAlgorithm::Sha512 => {
+            if remote_key_signature.len() < 256 && insecure_verification {
+                &ring::signature::RSA_PKCS1_1024_8192_SHA512_FOR_LEGACY_USE_ONLY
+            } else {
+                &ring::signature::RSA_PKCS1_2048_8192_SHA512
+            }
+        }
+        _ => return Err(Error::ErrKeySignatureVerifyUnimplemented),
+    };
+
+    log::trace!("Picked an algorithm {verify_alg:?}");
+
+    let public_key = ring::signature::UnparsedPublicKey::new(
+        verify_alg,
+        certificate
+            .tbs_certificate
+            .subject_pki
+            .subject_public_key
+            .data,
+    );
+
+    public_key
+        .verify(message, remote_key_signature)
+        .map_err(|e| Error::Other(e.to_string()))?;
+
+    Ok(())
+}
+
+pub(crate) fn verify_key_signature(
+    message: &[u8],
+    hash_algorithm: &SignatureHashAlgorithm,
+    remote_key_signature: &[u8],
+    raw_certificates: &[Vec<u8>],
+    insecure_verification: bool,
+) -> Result<()> {
+    verify_signature(
+        message,
+        hash_algorithm,
+        remote_key_signature,
+        raw_certificates,
+        insecure_verification,
+    )
+}
+
+// If the server has sent a CertificateRequest message, the client MUST send the Certificate
+// message.  The ClientKeyExchange message is now sent, and the content
+// of that message will depend on the public key algorithm selected
+// between the ClientHello and the ServerHello.  If the client has sent
+// a certificate with signing ability, a digitally-signed
+// CertificateVerify message is sent to explicitly verify possession of
+// the private key in the certificate.
+// https://tools.ietf.org/html/rfc5246#section-7.3
+pub(crate) fn generate_certificate_verify(
+    handshake_bodies: &[u8],
+    private_key: &CryptoPrivateKey, /*, hashAlgorithm hashAlgorithm*/
+) -> Result<Vec<u8>> {
+    let signature = match &private_key.kind {
+        CryptoPrivateKeyKind::Ed25519(kp) => kp.sign(handshake_bodies).as_ref().to_vec(),
+        CryptoPrivateKeyKind::Ecdsa256(kp) => {
+            let system_random = SystemRandom::new();
+            kp.sign(&system_random, handshake_bodies)
+                .map_err(|e| Error::Other(e.to_string()))?
+                .as_ref()
+                .to_vec()
+        }
+        CryptoPrivateKeyKind::Rsa256(kp) => {
+            let system_random = SystemRandom::new();
+            let mut signature = vec![0; kp.public().modulus_len()];
+            kp.sign(
+                &ring::signature::RSA_PKCS1_SHA256,
+                &system_random,
+                handshake_bodies,
+                &mut signature,
+            )
+            .map_err(|e| Error::Other(e.to_string()))?;
+
+            signature
+        }
+    };
+
+    Ok(signature)
+}
+
+pub(crate) fn verify_certificate_verify(
+    handshake_bodies: &[u8],
+    hash_algorithm: &SignatureHashAlgorithm,
+    remote_key_signature: &[u8],
+    raw_certificates: &[Vec<u8>],
+    insecure_verification: bool,
+) -> Result<()> {
+    verify_signature(
+        handshake_bodies,
+        hash_algorithm,
+        remote_key_signature,
+        raw_certificates,
+        insecure_verification,
+    )
+}
+
+pub(crate) fn load_certs(raw_certificates: &[Vec<u8>]) -> Result<Vec<CertificateDer<'static>>> {
+    if raw_certificates.is_empty() {
+        return Err(Error::ErrLengthMismatch);
+    }
+
+    let mut certs = vec![];
+    for raw_cert in raw_certificates {
+        let cert = CertificateDer::from(raw_cert.to_vec());
+        certs.push(cert);
+    }
+
+    Ok(certs)
+}
+
+pub(crate) fn verify_client_cert(
+    raw_certificates: &[Vec<u8>],
+    cert_verifier: &Arc<CertificateVerifier>,
+) -> Result<Vec<CertificateDer<'static>>> {
+    let chains = load_certs(raw_certificates)?;
+
+    let (end_entity, intermediates) = chains
+        .split_first()
+        .ok_or(Error::ErrClientCertificateRequired)?;
+
+    match cert_verifier.verify_client_cert(end_entity, intermediates) {
+        Ok(_) => {}
+        Err(err) => return Err(Error::Other(err.to_string())),
+    };
+
+    Ok(chains)
+}
+
+pub(crate) fn verify_server_cert(
+    raw_certificates: &[Vec<u8>],
+    cert_verifier: &Arc<CertificateVerifier>,
+    server_name: &str,
+) -> Result<Vec<CertificateDer<'static>>> {
+    let chains = load_certs(raw_certificates)?;
+
+    let (end_entity, intermediates) = chains
+        .split_first()
+        .ok_or(Error::ErrServerMustHaveCertificate)?;
+    match cert_verifier.verify_server_cert(end_entity, intermediates, server_name) {
+        Ok(_) => {}
+        Err(err) => return Err(Error::Other(err.to_string())),
+    };
+
+    Ok(chains)
+}
+
+pub(crate) fn generate_aead_additional_data(h: &RecordLayerHeader, payload_len: usize) -> Vec<u8> {
+    let mut additional_data = vec![0u8; 13];
+    // SequenceNumber MUST be set first
+    // we only want uint48, clobbering an extra 2 (using uint64, rust doesn't have uint48)
+    additional_data[..8].copy_from_slice(&h.sequence_number.to_be_bytes());
+    additional_data[..2].copy_from_slice(&h.epoch.to_be_bytes());
+    additional_data[8] = h.content_type as u8;
+    additional_data[9] = h.protocol_version.major;
+    additional_data[10] = h.protocol_version.minor;
+    additional_data[11..].copy_from_slice(&(payload_len as u16).to_be_bytes());
+
+    additional_data
+}
+
+#[cfg(test)]
+mod test {
+    #[cfg(feature = "pem")]
+    use super::*;
+
+    #[cfg(feature = "pem")]
+    #[test]
+    fn test_certificate_serialize_pem_and_from_pem() -> crate::error::Result<()> {
+        let cert = Certificate::generate_self_signed(vec!["webrtc.rs".to_owned()])?;
+
+        let pem = cert.serialize_pem();
+        let loaded_cert = Certificate::from_pem(&pem)?;
+
+        assert_eq!(loaded_cert, cert);
+
+        Ok(())
+    }
+}

libs/dtls/src/crypto/padding.rs

@@ -0,0 +1,122 @@
+use cbc::cipher::block_padding::{PadType, RawPadding, UnpadError};
+use core::panic;
+
+pub enum DtlsPadding {}
+/// Reference: RFC5246, 6.2.3.2
+impl RawPadding for DtlsPadding {
+    const TYPE: PadType = PadType::Reversible;
+
+    fn raw_pad(block: &mut [u8], pos: usize) {
+        if pos >= block.len() {
+            panic!("`pos` is bigger or equal to block size");
+        }
+
+        let padding_length = block.len() - pos - 1;
+        if padding_length > 255 {
+            panic!("block size is too big for DTLS");
+        }
+
+        set(&mut block[pos..], padding_length as u8);
+    }
+
+    fn raw_unpad(data: &[u8]) -> Result<&[u8], UnpadError> {
+        let padding_length = data.last().copied().unwrap_or(1) as usize;
+        if padding_length + 1 > data.len() {
+            return Err(UnpadError);
+        }
+
+        let padding_begin = data.len() - padding_length - 1;
+
+        if data[padding_begin..data.len() - 1]
+            .iter()
+            .any(|&byte| byte as usize != padding_length)
+        {
+            return Err(UnpadError);
+        }
+
+        Ok(&data[0..padding_begin])
+    }
+}
+
+/// Sets all bytes in `dst` equal to `value`
+#[inline(always)]
+fn set(dst: &mut [u8], value: u8) {
+    // SAFETY: we overwrite valid memory behind `dst`
+    // note: loop is not used here because it produces
+    // unnecessary branch which tests for zero-length slices
+    unsafe {
+        core::ptr::write_bytes(dst.as_mut_ptr(), value, dst.len());
+    }
+}
+
+#[cfg(test)]
+pub mod tests {
+    use rand::Rng;
+
+    use super::*;
+
+    #[test]
+    fn padding_length_is_amount_of_bytes_excluding_the_padding_length_itself() -> Result<(), ()> {
+        for original_length in 0..128 {
+            for padding_length in 0..(256 - original_length) {
+                let mut block = vec![0; original_length + padding_length + 1];
+                rand::rng().fill(&mut block[0..original_length]);
+                let original = block[0..original_length].to_vec();
+                DtlsPadding::raw_pad(&mut block, original_length);
+
+                for byte in block[original_length..].iter() {
+                    assert_eq!(*byte as usize, padding_length);
+                }
+                assert_eq!(block[0..original_length], original);
+            }
+        }
+
+        Ok(())
+    }
+
+    #[test]
+    #[should_panic]
+    fn full_block_is_padding_error() {
+        for original_length in 0..256 {
+            let mut block = vec![0; original_length];
+            DtlsPadding::raw_pad(&mut block, original_length);
+        }
+    }
+
+    #[test]
+    #[should_panic]
+    fn padding_length_bigger_than_255_is_a_pad_error() {
+        let padding_length = 256;
+        for original_length in 0..128 {
+            let mut block = vec![0; original_length + padding_length + 1];
+            DtlsPadding::raw_pad(&mut block, original_length);
+        }
+    }
+
+    #[test]
+    fn empty_block_is_unpadding_error() {
+        let r = DtlsPadding::raw_unpad(&[]);
+        assert!(r.is_err());
+    }
+
+    #[test]
+    fn padding_too_big_for_block_is_unpadding_error() {
+        let r = DtlsPadding::raw_unpad(&[1]);
+        assert!(r.is_err());
+    }
+
+    #[test]
+    fn one_of_the_padding_bytes_with_value_different_than_padding_length_is_unpadding_error() {
+        for padding_length in 0..16 {
+            for invalid_byte in 0..padding_length {
+                let mut block = vec![0; padding_length + 1];
+                DtlsPadding::raw_pad(&mut block, 0);
+
+                assert_eq!(DtlsPadding::raw_unpad(&block).ok(), Some(&[][..]));
+                block[invalid_byte] = (padding_length - 1) as u8;
+                let r = DtlsPadding::raw_unpad(&block);
+                assert!(r.is_err());
+            }
+        }
+    }
+}

libs/dtls/src/curve/mod.rs

@@ -0,0 +1,17 @@
+pub mod named_curve;
+
+// https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-10
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub enum EllipticCurveType {
+    NamedCurve = 0x03,
+    Unsupported,
+}
+
+impl From<u8> for EllipticCurveType {
+    fn from(val: u8) -> Self {
+        match val {
+            0x03 => EllipticCurveType::NamedCurve,
+            _ => EllipticCurveType::Unsupported,
+        }
+    }
+}

libs/dtls/src/curve/named_curve.rs

@@ -0,0 +1,83 @@
+use rand_core::OsRng; // requires 'getrandom' feature
+
+use crate::error::*;
+
+// https://www.iana.org/assignments/tls-parameters/tls-parameters.xml#tls-parameters-8
+#[repr(u16)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub enum NamedCurve {
+    Unsupported = 0x0000,
+    P256 = 0x0017,
+    P384 = 0x0018,
+    X25519 = 0x001d,
+}
+
+impl From<u16> for NamedCurve {
+    fn from(val: u16) -> Self {
+        match val {
+            0x0017 => NamedCurve::P256,
+            0x0018 => NamedCurve::P384,
+            0x001d => NamedCurve::X25519,
+            _ => NamedCurve::Unsupported,
+        }
+    }
+}
+
+pub(crate) enum NamedCurvePrivateKey {
+    EphemeralSecretP256(p256::ecdh::EphemeralSecret),
+    EphemeralSecretP384(p384::ecdh::EphemeralSecret),
+    StaticSecretX25519(x25519_dalek::StaticSecret),
+}
+
+pub struct NamedCurveKeypair {
+    pub(crate) curve: NamedCurve,
+    pub(crate) public_key: Vec<u8>,
+    pub(crate) private_key: NamedCurvePrivateKey,
+}
+
+fn elliptic_curve_keypair(curve: NamedCurve) -> Result<NamedCurveKeypair> {
+    let (public_key, private_key) = match curve {
+        NamedCurve::P256 => {
+            let secret_key = p256::ecdh::EphemeralSecret::random(&mut OsRng);
+            let public_key = p256::EncodedPoint::from(secret_key.public_key());
+            (
+                public_key.as_bytes().to_vec(),
+                NamedCurvePrivateKey::EphemeralSecretP256(secret_key),
+            )
+        }
+        NamedCurve::P384 => {
+            let secret_key = p384::ecdh::EphemeralSecret::random(&mut OsRng);
+            let public_key = p384::EncodedPoint::from(secret_key.public_key());
+            (
+                public_key.as_bytes().to_vec(),
+                NamedCurvePrivateKey::EphemeralSecretP384(secret_key),
+            )
+        }
+        NamedCurve::X25519 => {
+            let secret_key = x25519_dalek::StaticSecret::random_from_rng(OsRng);
+            let public_key = x25519_dalek::PublicKey::from(&secret_key);
+            (
+                public_key.as_bytes().to_vec(),
+                NamedCurvePrivateKey::StaticSecretX25519(secret_key),
+            )
+        }
+        _ => return Err(Error::ErrInvalidNamedCurve),
+    };
+
+    Ok(NamedCurveKeypair {
+        curve,
+        public_key,
+        private_key,
+    })
+}
+
+impl NamedCurve {
+    pub fn generate_keypair(&self) -> Result<NamedCurveKeypair> {
+        match *self {
+            NamedCurve::X25519 => elliptic_curve_keypair(NamedCurve::X25519),
+            NamedCurve::P256 => elliptic_curve_keypair(NamedCurve::P256),
+            NamedCurve::P384 => elliptic_curve_keypair(NamedCurve::P384),
+            _ => Err(Error::ErrInvalidNamedCurve),
+        }
+    }
+}

libs/dtls/src/error.rs

@@ -0,0 +1,223 @@
+use std::io;
+use std::string::FromUtf8Error;
+
+use thiserror::Error;
+use tokio::sync::mpsc::error::SendError as MpscSendError;
+use util::KeyingMaterialExporterError;
+
+pub type Result<T> = std::result::Result<T, Error>;
+
+#[derive(Debug, Error, PartialEq)]
+#[non_exhaustive]
+pub enum Error {
+    #[error("conn is closed")]
+    ErrConnClosed,
+    #[error("read/write timeout")]
+    ErrDeadlineExceeded,
+    #[error("buffer is too small")]
+    ErrBufferTooSmall,
+    #[error("context is not supported for export_keying_material")]
+    ErrContextUnsupported,
+    #[error("packet is too short")]
+    ErrDtlspacketInvalidLength,
+    #[error("handshake is in progress")]
+    ErrHandshakeInProgress,
+    #[error("invalid content type")]
+    ErrInvalidContentType,
+    #[error("invalid mac")]
+    ErrInvalidMac,
+    #[error("packet length and declared length do not match")]
+    ErrInvalidPacketLength,
+    #[error("export_keying_material can not be used with a reserved label")]
+    ErrReservedExportKeyingMaterial,
+    #[error("client sent certificate verify but we have no certificate to verify")]
+    ErrCertificateVerifyNoCertificate,
+    #[error("client+server do not support any shared cipher suites")]
+    ErrCipherSuiteNoIntersection,
+    #[error("server hello can not be created without a cipher suite")]
+    ErrCipherSuiteUnset,
+    #[error("client sent certificate but did not verify it")]
+    ErrClientCertificateNotVerified,
+    #[error("server required client verification, but got none")]
+    ErrClientCertificateRequired,
+    #[error("server responded with SRTP Profile we do not support")]
+    ErrClientNoMatchingSrtpProfile,
+    #[error("client required Extended Master Secret extension, but server does not support it")]
+    ErrClientRequiredButNoServerEms,
+    #[error("server hello can not be created without a compression method")]
+    ErrCompressionMethodUnset,
+    #[error("client+server cookie does not match")]
+    ErrCookieMismatch,
+    #[error("cookie must not be longer then 255 bytes")]
+    ErrCookieTooLong,
+    #[error("PSK Identity Hint provided but PSK is nil")]
+    ErrIdentityNoPsk,
+    #[error("no certificate provided")]
+    ErrInvalidCertificate,
+    #[error("cipher spec invalid")]
+    ErrInvalidCipherSpec,
+    #[error("invalid or unknown cipher suite")]
+    ErrInvalidCipherSuite,
+    #[error("unable to determine if ClientKeyExchange is a public key or PSK Identity")]
+    ErrInvalidClientKeyExchange,
+    #[error("invalid or unknown compression method")]
+    ErrInvalidCompressionMethod,
+    #[error("ECDSA signature contained zero or negative values")]
+    ErrInvalidEcdsasignature,
+    #[error("invalid or unknown elliptic curve type")]
+    ErrInvalidEllipticCurveType,
+    #[error("invalid extension type")]
+    ErrInvalidExtensionType,
+    #[error("invalid hash algorithm")]
+    ErrInvalidHashAlgorithm,
+    #[error("invalid named curve")]
+    ErrInvalidNamedCurve,
+    #[error("invalid private key type")]
+    ErrInvalidPrivateKey,
+    #[error("named curve and private key type does not match")]
+    ErrNamedCurveAndPrivateKeyMismatch,
+    #[error("invalid server name format")]
+    ErrInvalidSniFormat,
+    #[error("invalid signature algorithm")]
+    ErrInvalidSignatureAlgorithm,
+    #[error("expected and actual key signature do not match")]
+    ErrKeySignatureMismatch,
+    #[error("Conn can not be created with a nil nextConn")]
+    ErrNilNextConn,
+    #[error("connection can not be created, no CipherSuites satisfy this Config")]
+    ErrNoAvailableCipherSuites,
+    #[error("connection can not be created, no SignatureScheme satisfy this Config")]
+    ErrNoAvailableSignatureSchemes,
+    #[error("no certificates configured")]
+    ErrNoCertificates,
+    #[error("no config provided")]
+    ErrNoConfigProvided,
+    #[error("client requested zero or more elliptic curves that are not supported by the server")]
+    ErrNoSupportedEllipticCurves,
+    #[error("unsupported protocol version")]
+    ErrUnsupportedProtocolVersion,
+    #[error("Certificate and PSK provided")]
+    ErrPskAndCertificate,
+    #[error("PSK and PSK Identity Hint must both be set for client")]
+    ErrPskAndIdentityMustBeSetForClient,
+    #[error("SRTP support was requested but server did not respond with use_srtp extension")]
+    ErrRequestedButNoSrtpExtension,
+    #[error("Certificate is mandatory for server")]
+    ErrServerMustHaveCertificate,
+    #[error("client requested SRTP but we have no matching profiles")]
+    ErrServerNoMatchingSrtpProfile,
+    #[error(
+        "server requires the Extended Master Secret extension, but the client does not support it"
+    )]
+    ErrServerRequiredButNoClientEms,
+    #[error("expected and actual verify data does not match")]
+    ErrVerifyDataMismatch,
+    #[error("handshake message unset, unable to marshal")]
+    ErrHandshakeMessageUnset,
+    #[error("invalid flight number")]
+    ErrInvalidFlight,
+    #[error("unable to generate key signature, unimplemented")]
+    ErrKeySignatureGenerateUnimplemented,
+    #[error("unable to verify key signature, unimplemented")]
+    ErrKeySignatureVerifyUnimplemented,
+    #[error("data length and declared length do not match")]
+    ErrLengthMismatch,
+    #[error("buffer not long enough to contain nonce")]
+    ErrNotEnoughRoomForNonce,
+    #[error("feature has not been implemented yet")]
+    ErrNotImplemented,
+    #[error("sequence number overflow")]
+    ErrSequenceNumberOverflow,
+    #[error("unable to marshal fragmented handshakes")]
+    ErrUnableToMarshalFragmented,
+    #[error("invalid state machine transition")]
+    ErrInvalidFsmTransition,
+    #[error("ApplicationData with epoch of 0")]
+    ErrApplicationDataEpochZero,
+    #[error("unhandled contentType")]
+    ErrUnhandledContextType,
+    #[error("context canceled")]
+    ErrContextCanceled,
+    #[error("empty fragment")]
+    ErrEmptyFragment,
+    #[error("Alert is Fatal or Close Notify")]
+    ErrAlertFatalOrClose,
+
+    #[error(
+        "Fragment buffer overflow. New size {new_size} is greater than specified max {max_size}"
+    )]
+    ErrFragmentBufferOverflow { new_size: usize, max_size: usize },
+
+    #[error("{0}")]
+    Io(#[source] IoError),
+    #[error("{0}")]
+    Util(#[from] util::Error),
+    #[error("utf8: {0}")]
+    Utf8(#[from] FromUtf8Error),
+    #[error("{0}")]
+    Sec1(#[source] sec1::Error),
+    #[error("{0}")]
+    Aes(#[from] aes::cipher::InvalidLength),
+    #[error("{0}")]
+    P256(#[source] P256Error),
+    #[error("{0}")]
+    RcGen(#[from] rcgen::Error),
+    #[error("mpsc send: {0}")]
+    MpscSend(String),
+    #[error("keying material: {0}")]
+    KeyingMaterial(#[from] KeyingMaterialExporterError),
+
+    /// Error parsing a given PEM string.
+    #[error("invalid PEM: {0}")]
+    InvalidPEM(String),
+
+    #[allow(non_camel_case_types)]
+    #[error("{0}")]
+    Other(String),
+}
+
+#[derive(Debug, Error)]
+#[error("io error: {0}")]
+pub struct IoError(#[from] pub io::Error);
+
+// Workaround for wanting PartialEq for io::Error.
+impl PartialEq for IoError {
+    fn eq(&self, other: &Self) -> bool {
+        self.0.kind() == other.0.kind()
+    }
+}
+
+impl From<io::Error> for Error {
+    fn from(e: io::Error) -> Self {
+        Error::Io(IoError(e))
+    }
+}
+
+impl From<sec1::Error> for Error {
+    fn from(e: sec1::Error) -> Self {
+        Error::Sec1(e)
+    }
+}
+
+#[derive(Debug, Error)]
+#[error("{0}")]
+pub struct P256Error(#[source] p256::elliptic_curve::Error);
+
+impl PartialEq for P256Error {
+    fn eq(&self, _: &Self) -> bool {
+        false
+    }
+}
+
+impl From<p256::elliptic_curve::Error> for Error {
+    fn from(e: p256::elliptic_curve::Error) -> Self {
+        Error::P256(P256Error(e))
+    }
+}
+
+// Because Tokio SendError is parameterized, we sadly lose the backtrace.
+impl<T> From<MpscSendError<T>> for Error {
+    fn from(e: MpscSendError<T>) -> Self {
+        Error::MpscSend(e.to_string())
+    }
+}

libs/dtls/src/extension/extension_server_name.rs

@@ -0,0 +1,56 @@
+#[cfg(test)]
+mod extension_server_name_test;
+
+use std::io::{Read, Write};
+
+use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
+
+use super::*;
+
+const EXTENSION_SERVER_NAME_TYPE_DNSHOST_NAME: u8 = 0;
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct ExtensionServerName {
+    pub(crate) server_name: String,
+}
+
+impl ExtensionServerName {
+    pub fn extension_value(&self) -> ExtensionValue {
+        ExtensionValue::ServerName
+    }
+
+    pub fn size(&self) -> usize {
+        //TODO: check how to do cryptobyte?
+        2 + 2 + 1 + 2 + self.server_name.len()
+    }
+
+    pub fn marshal<W: Write>(&self, writer: &mut W) -> Result<()> {
+        //TODO: check how to do cryptobyte?
+        writer.write_u16::<BigEndian>(2 + 1 + 2 + self.server_name.len() as u16)?;
+        writer.write_u16::<BigEndian>(1 + 2 + self.server_name.len() as u16)?;
+        writer.write_u8(EXTENSION_SERVER_NAME_TYPE_DNSHOST_NAME)?;
+        writer.write_u16::<BigEndian>(self.server_name.len() as u16)?;
+        writer.write_all(self.server_name.as_bytes())?;
+
+        Ok(writer.flush()?)
+    }
+
+    pub fn unmarshal<R: Read>(reader: &mut R) -> Result<Self> {
+        //TODO: check how to do cryptobyte?
+        let _ = reader.read_u16::<BigEndian>()? as usize;
+        let _ = reader.read_u16::<BigEndian>()? as usize;
+
+        let name_type = reader.read_u8()?;
+        if name_type != EXTENSION_SERVER_NAME_TYPE_DNSHOST_NAME {
+            return Err(Error::ErrInvalidSniFormat);
+        }
+
+        let buf_len = reader.read_u16::<BigEndian>()? as usize;
+        let mut buf: Vec<u8> = vec![0u8; buf_len];
+        reader.read_exact(&mut buf)?;
+
+        let server_name = String::from_utf8(buf)?;
+
+        Ok(ExtensionServerName { server_name })
+    }
+}

libs/dtls/src/extension/extension_server_name/extension_server_name_test.rs

@@ -0,0 +1,26 @@
+use std::io::{BufReader, BufWriter};
+
+use super::*;
+
+#[test]
+fn test_extension_server_name() -> Result<()> {
+    let extension = ExtensionServerName {
+        server_name: "test.domain".to_owned(),
+    };
+
+    let mut raw = vec![];
+    {
+        let mut writer = BufWriter::<&mut Vec<u8>>::new(raw.as_mut());
+        extension.marshal(&mut writer)?;
+    }
+
+    let mut reader = BufReader::new(raw.as_slice());
+    let new_extension = ExtensionServerName::unmarshal(&mut reader)?;
+
+    assert_eq!(
+        new_extension, extension,
+        "extensionServerName marshal: got {new_extension:?} expected {extension:?}",
+    );
+
+    Ok(())
+}

libs/dtls/src/extension/extension_supported_elliptic_curves.rs

@@ -0,0 +1,50 @@
+#[cfg(test)]
+mod extension_supported_elliptic_curves_test;
+
+use super::*;
+use crate::curve::named_curve::*;
+
+const EXTENSION_SUPPORTED_GROUPS_HEADER_SIZE: usize = 6;
+
+/// ## Specifications
+///
+/// * [RFC 8422 §5.1.1]
+///
+/// [RFC 8422 §5.1.1]: https://tools.ietf.org/html/rfc8422#section-5.1.1
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct ExtensionSupportedEllipticCurves {
+    pub elliptic_curves: Vec<NamedCurve>,
+}
+
+impl ExtensionSupportedEllipticCurves {
+    pub fn extension_value(&self) -> ExtensionValue {
+        ExtensionValue::SupportedEllipticCurves
+    }
+
+    pub fn size(&self) -> usize {
+        2 + 2 + self.elliptic_curves.len() * 2
+    }
+
+    pub fn marshal<W: Write>(&self, writer: &mut W) -> Result<()> {
+        writer.write_u16::<BigEndian>(2 + 2 * self.elliptic_curves.len() as u16)?;
+        writer.write_u16::<BigEndian>(2 * self.elliptic_curves.len() as u16)?;
+        for v in &self.elliptic_curves {
+            writer.write_u16::<BigEndian>(*v as u16)?;
+        }
+
+        Ok(writer.flush()?)
+    }
+
+    pub fn unmarshal<R: Read>(reader: &mut R) -> Result<Self> {
+        let _ = reader.read_u16::<BigEndian>()?;
+
+        let group_count = reader.read_u16::<BigEndian>()? as usize / 2;
+        let mut elliptic_curves = vec![];
+        for _ in 0..group_count {
+            let elliptic_curve = reader.read_u16::<BigEndian>()?.into();
+            elliptic_curves.push(elliptic_curve);
+        }
+
+        Ok(ExtensionSupportedEllipticCurves { elliptic_curves })
+    }
+}