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/* SPDX-License-Identifier: GPL-2.0
*
* Copyright (C) 2018-2020 WireGuard LLC. All Rights Reserved.
*/
#include "pch.h"
#pragma warning(disable : 4221) /* nonstandard: address of automatic in initializer */
BOOL
DriverIsOurHardwareID(_In_z_ const WCHAR *Hwids)
{
for (; Hwids[0]; Hwids += wcslen(Hwids) + 1)
if (!_wcsicmp(Hwids, WINTUN_HWID))
return TRUE;
return FALSE;
}
BOOL
DriverIsOurDrvInfoDetail(_In_ const SP_DRVINFO_DETAIL_DATA_W *DrvInfoDetailData)
{
return DrvInfoDetailData->CompatIDsOffset > 1 && !_wcsicmp(DrvInfoDetailData->HardwareID, WINTUN_HWID) ||
DrvInfoDetailData->CompatIDsLength &&
DriverIsOurHardwareID(DrvInfoDetailData->HardwareID + DrvInfoDetailData->CompatIDsOffset);
}
#if defined(HAVE_EV) || defined(HAVE_WHQL)
WINTUN_STATUS
DriverRemoveAllOurs(void)
{
HDEVINFO DevInfo = SetupDiGetClassDevsW(&GUID_DEVCLASS_NET, NULL, NULL, 0);
if (!DevInfo)
return LOG_LAST_ERROR(L"Failed to request device information");
DWORD Result = ERROR_SUCCESS;
if (!SetupDiBuildDriverInfoList(DevInfo, NULL, SPDIT_CLASSDRIVER))
{
Result = LOG_LAST_ERROR(L"Failed to build list of drivers");
goto cleanupDeviceInfoSet;
}
for (DWORD EnumIndex = 0;; ++EnumIndex)
{
SP_DRVINFO_DATA_W DrvInfoData = { .cbSize = sizeof(DrvInfoData) };
if (!SetupDiEnumDriverInfoW(DevInfo, NULL, SPDIT_CLASSDRIVER, EnumIndex, &DrvInfoData))
{
if (GetLastError() == ERROR_NO_MORE_ITEMS)
break;
continue;
}
SP_DRVINFO_DETAIL_DATA_W *DrvInfoDetailData;
if (AdapterGetDrvInfoDetail(DevInfo, NULL, &DrvInfoData, &DrvInfoDetailData) != ERROR_SUCCESS)
{
LOG(WINTUN_LOG_WARN, L"Failed getting driver info detail");
continue;
}
if (!DriverIsOurDrvInfoDetail(DrvInfoDetailData))
{
HeapFree(ModuleHeap, 0, DrvInfoDetailData);
continue;
}
PathStripPathW(DrvInfoDetailData->InfFileName);
LOG(WINTUN_LOG_INFO, L"Removing existing driver");
if (!SetupUninstallOEMInfW(DrvInfoDetailData->InfFileName, SUOI_FORCEDELETE, NULL))
{
LOG_LAST_ERROR(L"Unable to remove existing driver");
Result = Result != ERROR_SUCCESS ? Result : GetLastError();
}
HeapFree(ModuleHeap, 0, DrvInfoDetailData);
}
SetupDiDestroyDriverInfoList(DevInfo, NULL, SPDIT_CLASSDRIVER);
cleanupDeviceInfoSet:
SetupDiDestroyDeviceInfoList(DevInfo);
return Result;
}
#endif
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