mirror of
https://github.com/mofeng-git/One-KVM.git
synced 2025-12-12 01:00:29 +08:00
87 lines
3.4 KiB
Python
87 lines
3.4 KiB
Python
# ========================================================================== #
|
|
# #
|
|
# KVMD - The main PiKVM daemon. #
|
|
# #
|
|
# Copyright (C) 2018-2022 Maxim Devaev <mdevaev@gmail.com> #
|
|
# #
|
|
# 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/>. #
|
|
# #
|
|
# ========================================================================== #
|
|
|
|
|
|
import os
|
|
import errno
|
|
|
|
from typing import List
|
|
|
|
from .... import usb
|
|
|
|
from .. import MsdOperationError
|
|
|
|
|
|
# =====
|
|
class MsdDriveLockedError(MsdOperationError):
|
|
def __init__(self) -> None:
|
|
super().__init__("MSD drive is locked on IO operation")
|
|
|
|
|
|
# =====
|
|
class Drive:
|
|
def __init__(self, gadget: str, instance: int, lun: int) -> None:
|
|
func = f"mass_storage.usb{instance}"
|
|
self.__profile_func_path = usb.get_gadget_path(gadget, usb.G_PROFILE, func)
|
|
self.__profile_path = usb.get_gadget_path(gadget, usb.G_PROFILE)
|
|
self.__lun_path = usb.get_gadget_path(gadget, usb.G_FUNCTIONS, func, f"lun.{lun}")
|
|
|
|
def is_enabled(self) -> bool:
|
|
return os.path.exists(self.__profile_func_path)
|
|
|
|
def get_watchable_paths(self) -> List[str]:
|
|
return [self.__lun_path, self.__profile_path]
|
|
|
|
# =====
|
|
|
|
def set_image_path(self, path: str) -> None:
|
|
self.__set_param("file", path)
|
|
|
|
def get_image_path(self) -> str:
|
|
return self.__get_param("file")
|
|
|
|
def set_cdrom_flag(self, flag: bool) -> None:
|
|
self.__set_param("cdrom", str(int(flag)))
|
|
|
|
def get_cdrom_flag(self) -> bool:
|
|
return bool(int(self.__get_param("cdrom")))
|
|
|
|
def set_rw_flag(self, flag: bool) -> None:
|
|
self.__set_param("ro", str(int(not flag)))
|
|
|
|
def get_rw_flag(self) -> bool:
|
|
return (not int(self.__get_param("ro")))
|
|
|
|
# =====
|
|
|
|
def __get_param(self, param: str) -> str:
|
|
with open(os.path.join(self.__lun_path, param)) as param_file:
|
|
return param_file.read().strip()
|
|
|
|
def __set_param(self, param: str, value: str) -> None:
|
|
try:
|
|
with open(os.path.join(self.__lun_path, param), "w") as param_file:
|
|
param_file.write(value + "\n")
|
|
except OSError as err:
|
|
if err.errno == errno.EBUSY:
|
|
raise MsdDriveLockedError()
|
|
raise
|