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RNDIS Version 5 for Windows XP, automatic driver load on Windows using ncm (#77)

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* rndis version 5 implementation for windows xp

* make windows pick the ncm usb ethernet driver automatically
This commit is contained in:
mfunkey 2022-01-20 07:44:46 +01:00 committed by GitHub
parent 3ab43edeb9
commit ba1f66db9c
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 20 additions and 6 deletions
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19
kvmd/apps/otg/__init__.py
View File

@ -113,7 +113,10 @@ def _create_serial(gadget_path: str, config_path: str) -> None:
def _create_ethernet(gadget_path: str, config_path: str, driver: str, host_mac: str, kvm_mac: str) -> None:
if host_mac and kvm_mac and host_mac == kvm_mac:
raise RuntimeError("Ethernet host_mac should not be equal to kvm_mac")
func_path = join(gadget_path, f"functions/{driver}.usb0")
drv = driver
if driver == "rndis5":
drv = "rndis"
func_path = join(gadget_path, f"functions/{drv}.usb0")
_mkdir(func_path)
if host_mac:
_write(join(func_path, "host_addr"), host_mac)
@ -130,7 +133,13 @@ def _create_ethernet(gadget_path: str, config_path: str, driver: str, host_mac:
_write(join(gadget_path, "os_desc/b_vendor_code"), "0xCD")
_write(join(gadget_path, "os_desc/qw_sign"), "MSFT100")
_symlink(config_path, join(gadget_path, "os_desc/c.1"))
_symlink(func_path, join(config_path, f"{driver}.usb0"))
if driver == "ncm":
_write(join(func_path, "os_desc/interface.ncm/compatible_id"), "WINNCM")
_write(join(gadget_path, "os_desc/use"), "1")
_write(join(gadget_path, "os_desc/b_vendor_code"), "0xCD")
_write(join(gadget_path, "os_desc/qw_sign"), "MSFT100")
_symlink(config_path, join(gadget_path, "os_desc/c.1"))
_symlink(func_path, join(config_path, f"{drv}.usb0"))
def _create_hid(gadget_path: str, config_path: str, instance: int, remote_wakeup: bool, hid: Hid) -> None:
@ -189,10 +198,12 @@ def _cmd_start(config: Section) -> None: # pylint: disable=too-many-statements
_write(join(gadget_path, "idVendor"), f"0x{config.otg.vendor_id:04X}")
_write(join(gadget_path, "idProduct"), f"0x{config.otg.product_id:04X}")
# bcdDevaev should be incremented any time there are breaking changes
# bcdDevice should be incremented any time there are breaking changes
# to this script so that the host OS sees it as a new device
# and re-enumerates everything rather than relying on cached values.
if config.otg.devices.ethernet.enabled and config.otg.devices.ethernet.driver == "rndis":
if config.otg.devices.ethernet.enabled and config.otg.devices.ethernet.driver == "ncm":
_write(join(gadget_path, "bcdDevice"), "0x0102")
elif config.otg.devices.ethernet.enabled and config.otg.devices.ethernet.driver == "rndis":
_write(join(gadget_path, "bcdDevice"), "0x0101")
else:
_write(join(gadget_path, "bcdDevice"), "0x0100")

5
kvmd/apps/otgnet/__init__.py
View File

@ -173,10 +173,13 @@ class _Service: # pylint: disable=too-many-instance-attributes
def __find_iface(self) -> str:
logger = get_logger()
drv = self.__driver
if self.__driver == "rndis5":
drv = "rndis"
path = env.SYSFS_PREFIX + os.path.join(
"/sys/kernel/config/usb_gadget",
self.__gadget,
f"functions/{self.__driver}.usb0/ifname",
f"functions/{drv}.usb0/ifname",
)
logger.info("Using OTG gadget %r ...", self.__gadget)
with open(path) as iface_file:

2
kvmd/validators/hw.py
View File

@ -55,4 +55,4 @@ def valid_otg_id(arg: Any) -> int:
def valid_otg_ethernet(arg: Any) -> str:
return check_string_in_list(arg, "OTG Ethernet driver", ["ecm", "eem", "ncm", "rndis"])
return check_string_in_list(arg, "OTG Ethernet driver", ["ecm", "eem", "ncm", "rndis", "rndis5"])