diff options
Diffstat (limited to 'setupapihost/host.c')
| -rw-r--r-- | setupapihost/host.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/setupapihost/host.c b/setupapihost/host.c new file mode 100644 index 0000000..e930358 --- /dev/null +++ b/setupapihost/host.c @@ -0,0 +1,184 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (C) 2018-2021 WireGuard LLC. All Rights Reserved. + */ + +#include <windows.h> +#include <delayimp.h> +#include <setupapi.h> +#include <devguid.h> +#include <shellapi.h> +#include <intsafe.h> +#include <stdlib.h> + +#define EXPORT comment(linker, "/EXPORT:" __FUNCTION__ "=" __FUNCDNAME__) + +static FARPROC WINAPI +DelayedLoadLibraryHook(unsigned dliNotify, PDelayLoadInfo pdli) +{ + if (dliNotify != dliNotePreLoadLibrary) + return NULL; + HMODULE Library = LoadLibraryExA(pdli->szDll, NULL, LOAD_LIBRARY_SEARCH_SYSTEM32); + if (!Library) + abort(); + return (FARPROC)Library; +} + +const PfnDliHook __pfnDliNotifyHook2 = DelayedLoadLibraryHook; + +static DWORD +WriteFormatted(_In_ DWORD StdHandle, _In_z_ LPCWSTR Template, ...) +{ + LPWSTR FormattedMessage = NULL; + DWORD Size; + va_list Arguments; + va_start(Arguments, Template); + DWORD Len = FormatMessageW( + FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER, + Template, + 0, + 0, + (VOID *)&FormattedMessage, + 0, + &Arguments); + if (SUCCEEDED(DWordMult(Len, sizeof(*FormattedMessage), &Size))) + WriteFile(GetStdHandle(StdHandle), FormattedMessage, Size, &Size, NULL); + else + Size = 0; + LocalFree(FormattedMessage); + va_end(Arguments); + return Size / sizeof(*FormattedMessage); +} + +VOID __stdcall RemoveInstance(HWND hwnd, HINSTANCE hinst, LPSTR lpszCmdLine, int nCmdShow) +{ +#pragma EXPORT + + DWORD LastError = ERROR_SUCCESS; + int Argc; + LPWSTR *Argv = CommandLineToArgvW(GetCommandLineW(), &Argc); + + if (Argc < 3) + goto cleanup; + WCHAR *InstanceId = Argv[2]; + + HDEVINFO DevInfo = SetupDiCreateDeviceInfoListExW(&GUID_DEVCLASS_NET, NULL, NULL, NULL); + if (DevInfo == INVALID_HANDLE_VALUE) + { + LastError = GetLastError(); + goto cleanup; + } + SP_DEVINFO_DATA DevInfoData = { .cbSize = sizeof(DevInfoData) }; + if (!SetupDiOpenDeviceInfoW(DevInfo, InstanceId, NULL, DIOD_INHERIT_CLASSDRVS, &DevInfoData)) + { + LastError = GetLastError(); + goto cleanupDevInfo; + } + SP_REMOVEDEVICE_PARAMS RemoveDeviceParams = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER), + .InstallFunction = DIF_REMOVE }, + .Scope = DI_REMOVEDEVICE_GLOBAL }; + if (!SetupDiSetClassInstallParamsW( + DevInfo, &DevInfoData, &RemoveDeviceParams.ClassInstallHeader, sizeof(RemoveDeviceParams)) || + !SetupDiCallClassInstaller(DIF_REMOVE, DevInfo, &DevInfoData)) + { + LastError = GetLastError(); + goto cleanupDevInfo; + } + +cleanupDevInfo: + SetupDiDestroyDeviceInfoList(DevInfo); +cleanup: + LocalFree(Argv); + + WriteFormatted(STD_OUTPUT_HANDLE, L"%1!X!", LastError); +} + +VOID __stdcall EnableInstance(HWND hwnd, HINSTANCE hinst, LPSTR lpszCmdLine, int nCmdShow) +{ +#pragma EXPORT + + DWORD LastError = ERROR_SUCCESS; + int Argc; + LPWSTR *Argv = CommandLineToArgvW(GetCommandLineW(), &Argc); + + if (Argc < 3) + goto cleanup; + WCHAR *InstanceId = Argv[2]; + + HDEVINFO DevInfo = SetupDiCreateDeviceInfoListExW(&GUID_DEVCLASS_NET, NULL, NULL, NULL); + if (DevInfo == INVALID_HANDLE_VALUE) + { + LastError = GetLastError(); + goto cleanup; + } + SP_DEVINFO_DATA DevInfoData = { .cbSize = sizeof(DevInfoData) }; + if (!SetupDiOpenDeviceInfoW(DevInfo, InstanceId, NULL, DIOD_INHERIT_CLASSDRVS, &DevInfoData)) + { + LastError = GetLastError(); + goto cleanupDevInfo; + } + SP_PROPCHANGE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER), + .InstallFunction = DIF_PROPERTYCHANGE }, + .StateChange = DICS_ENABLE, + .Scope = DICS_FLAG_GLOBAL }; + if (!SetupDiSetClassInstallParamsW(DevInfo, &DevInfoData, &Params.ClassInstallHeader, sizeof(Params)) || + !SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, DevInfo, &DevInfoData)) + { + LastError = GetLastError(); + goto cleanupDevInfo; + } + +cleanupDevInfo: + SetupDiDestroyDeviceInfoList(DevInfo); +cleanup: + LocalFree(Argv); + + WriteFormatted(STD_OUTPUT_HANDLE, L"%1!X!", LastError); +} + +VOID __stdcall DisableInstance(HWND hwnd, HINSTANCE hinst, LPSTR lpszCmdLine, int nCmdShow) +{ +#pragma EXPORT + + DWORD LastError = ERROR_SUCCESS; + int Argc; + LPWSTR *Argv = CommandLineToArgvW(GetCommandLineW(), &Argc); + + if (Argc < 3) + goto cleanup; + WCHAR *InstanceId = Argv[2]; + + HDEVINFO DevInfo = SetupDiCreateDeviceInfoListExW(&GUID_DEVCLASS_NET, NULL, NULL, NULL); + if (DevInfo == INVALID_HANDLE_VALUE) + { + LastError = GetLastError(); + goto cleanup; + } + SP_DEVINFO_DATA DevInfoData = { .cbSize = sizeof(DevInfoData) }; + if (!SetupDiOpenDeviceInfoW(DevInfo, InstanceId, NULL, DIOD_INHERIT_CLASSDRVS, &DevInfoData)) + { + LastError = GetLastError(); + goto cleanupDevInfo; + } + SP_PROPCHANGE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER), + .InstallFunction = DIF_PROPERTYCHANGE }, + .StateChange = DICS_DISABLE, + .Scope = DICS_FLAG_GLOBAL }; + if (!SetupDiSetClassInstallParamsW(DevInfo, &DevInfoData, &Params.ClassInstallHeader, sizeof(Params)) || + !SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, DevInfo, &DevInfoData)) + { + LastError = GetLastError(); + goto cleanupDevInfo; + } + +cleanupDevInfo: + SetupDiDestroyDeviceInfoList(DevInfo); +cleanup: + LocalFree(Argv); + + WriteFormatted(STD_OUTPUT_HANDLE, L"%1!X!", LastError); +} + +#if NTDDI_VERSION == NTDDI_WIN7 +#include "host_win7.h" +#endif |