Files

72 lines
3.0 KiB
Python
Raw Permalink Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
#!/usr/bin/env python3
"""Диагностика открытия HID-устройства через IOKit напрямую (ctypes).
Берёт путь устройства из hidapi (DevSrvsID:<entry_id> = registry entry ID),
открывает сервис через IORegistryEntryIDMatching + IOHIDDeviceCreate (как
делает сам hidapi) и печатает точный код IOReturn от IOHIDDeviceOpen:
- 0x00000000 — успех (права есть, проблема в hidapi)
- 0xE00002C1 — kIOReturnNotPrivileged (нет разрешения Input Monitoring)
- другой код — иная причина (см. коды IOKit, iokit_common_err).
"""
import ctypes
import ctypes.util
import re
import sys
import hid
iokit = ctypes.CDLL(ctypes.util.find_library("IOKit"))
cf = ctypes.CDLL(ctypes.util.find_library("CoreFoundation"))
# прототипы функций
iokit.IOServiceGetMatchingService.argtypes = [ctypes.c_int, ctypes.c_void_p]
iokit.IOServiceGetMatchingService.restype = ctypes.c_uint
iokit.IORegistryEntryIDMatching.argtypes = [ctypes.c_longlong]
iokit.IORegistryEntryIDMatching.restype = ctypes.c_void_p
iokit.IOObjectRelease.argtypes = [ctypes.c_uint]
iokit.IOObjectRelease.restype = ctypes.c_int
iokit.IOHIDDeviceCreate.argtypes = [ctypes.c_void_p, ctypes.c_uint]
iokit.IOHIDDeviceCreate.restype = ctypes.c_void_p
iokit.IOHIDDeviceOpen.argtypes = [ctypes.c_void_p, ctypes.c_int]
iokit.IOHIDDeviceOpen.restype = ctypes.c_int
iokit.IOHIDDeviceClose.argtypes = [ctypes.c_void_p, ctypes.c_int]
iokit.IOHIDDeviceClose.restype = ctypes.c_int
cf.CFRelease.argtypes = [ctypes.c_void_p]
def main():
"""Найти iface0 клавиатуры через hidapi и открыть её сервис в IOKit."""
paths = [i["path"].decode() for i in hid.enumerate(0x0C45, 0x8006)
if i["interface_number"] == 0]
if not paths:
raise SystemExit("устройство 0C45:8006 не найдено через hidapi")
m = re.fullmatch(r"DevSrvsID:(\d+)", paths[0])
if not m:
raise SystemExit(f"неожиданный формат пути: {paths[0]!r}")
entry_id = int(m.group(1))
service = iokit.IOServiceGetMatchingService(
0, iokit.IORegistryEntryIDMatching(entry_id))
if not service:
raise SystemExit(f"сервис с entry_id {entry_id} не найден в реестре")
print(f"сервис найден: {service:#x}")
dev = iokit.IOHIDDeviceCreate(None, service)
iokit.IOObjectRelease(service)
if not dev:
raise SystemExit("IOHIDDeviceCreate вернул NULL")
print("IOHIDDeviceCreate: ok")
r = iokit.IOHIDDeviceOpen(dev, 0) # kIOHIDOptionsTypeNone
meaning = {0x00000000: "OK (права есть)",
0xE00002C1: "NotPrivileged — нет разрешения Input Monitoring",
}.get(r, "см. коды IOKit (iokit_common_err)")
print(f"IOHIDDeviceOpen: {r:#010x} ({meaning})")
if r == 0:
iokit.IOHIDDeviceClose(dev, 0)
cf.CFRelease(dev)
if __name__ == "__main__":
main()