16a9737578
Gather adapter management in adapter.h/.c (formerly devmgmt.h/.c) and unify HwID tests. Use "Namespace" namespace in all functions from namespace.h/.c. Fix char strings in LOG_... Signed-off-by: Simon Rozman <simon@rozman.si>
1464 lines
52 KiB
C
1464 lines
52 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright (C) 2018-2020 WireGuard LLC. All Rights Reserved.
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*/
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#include "pch.h"
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#define WAIT_FOR_REGISTRY_TIMEOUT 10000 /* ms */
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#define MAX_POOL_DEVICE_TYPE (MAX_POOL + 8) /* Should accommodate a pool name with " Tunnel" appended */
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static _locale_t Locale;
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/**
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* Retrieves driver information detail for a device information set or a particular device information element in the
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* device information set.
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*
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* @param DevInfo A handle to the device information set that contains a device information element that
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* represents the device for which to retrieve driver information.
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*
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* @param DevInfoData A pointer to a structure that specifies the device information element in DevInfo.
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*
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* @param DrvInfoData A pointer to a structure that specifies the driver information element that represents the
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* driver for which to retrieve details.
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*
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* @param DrvInfoDetailData A pointer to a structure that receives detailed information about the specified driver.
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* Must be released with HeapFree(GetProcessHeap(), 0, *DrvInfoDetailData) after use.
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*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
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*/
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WINTUN_STATUS
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AdapterGetDrvInfoDetail(
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_In_ HDEVINFO DevInfo,
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_In_opt_ SP_DEVINFO_DATA *DevInfoData,
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_In_ SP_DRVINFO_DATA_W *DrvInfoData,
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_Out_ SP_DRVINFO_DETAIL_DATA_W **DrvInfoDetailData)
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{
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HANDLE Heap = GetProcessHeap();
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DWORD Size = sizeof(SP_DRVINFO_DETAIL_DATA_W) + 0x100;
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DWORD Result;
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for (;;)
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{
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*DrvInfoDetailData = HeapAlloc(Heap, 0, Size);
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if (!*DrvInfoDetailData)
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{
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Result = ERROR_OUTOFMEMORY;
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goto out;
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}
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(*DrvInfoDetailData)->cbSize = sizeof(SP_DRVINFO_DETAIL_DATA_W);
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if (SetupDiGetDriverInfoDetailW(DevInfo, DevInfoData, DrvInfoData, *DrvInfoDetailData, Size, &Size))
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return ERROR_SUCCESS;
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Result = GetLastError();
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HeapFree(Heap, 0, *DrvInfoDetailData);
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if (Result != ERROR_INSUFFICIENT_BUFFER)
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{
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LOG_ERROR(L"Failed", Result);
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goto out;
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}
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}
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out:
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return Result;
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}
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/**
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* Retrieves a specified Plug and Play device property.
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*
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* @param DevInfo A handle to the device information set that contains a device information element that
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* represents the device for which to open a registry key.
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*
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* @param DevInfoData A pointer to a structure that specifies the device information element in DevInfo.
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*
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* @param Property The property to be retrieved. One of the SPDRP_* constants.
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*
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* @param ValueType A pointer to a variable that receives the data type of the property that is being retrieved.
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* This is one of the standard registry data types.
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*
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* @param Buf A pointer to a buffer that receives the property that is being retrieved. Must be released with
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* HeapFree(GetProcessHeap(), 0, *Buf) after use.
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*
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* @param BufLen On input, a hint of expected registry value size in bytes; on output, actual registry value size
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* in bytes.
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*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
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*/
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static WINTUN_STATUS
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GetDeviceRegistryProperty(
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_In_ HDEVINFO DevInfo,
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_In_ SP_DEVINFO_DATA *DevInfoData,
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_In_ DWORD Property,
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_Out_opt_ DWORD *ValueType,
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_Out_ void **Buf,
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_Inout_ DWORD *BufLen)
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{
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HANDLE Heap = GetProcessHeap();
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for (;;)
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{
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*Buf = HeapAlloc(Heap, 0, *BufLen);
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if (!*Buf)
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return ERROR_OUTOFMEMORY;
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if (SetupDiGetDeviceRegistryPropertyW(DevInfo, DevInfoData, Property, ValueType, *Buf, *BufLen, BufLen))
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return ERROR_SUCCESS;
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DWORD Result = GetLastError();
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HeapFree(Heap, 0, *Buf);
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if (Result != ERROR_INSUFFICIENT_BUFFER)
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return LOG_ERROR(L"Querying property failed", Result);
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}
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}
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/**
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* Retrieves a specified Plug and Play device property string.
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*
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* @param DevInfo A handle to the device information set that contains a device information element that
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* represents the device for which to open a registry key.
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*
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* @param DevInfoData A pointer to a structure that specifies the device information element in DevInfo.
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*
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* @param Property The property to be retrieved. One of the SPDRP_* constants.
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*
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* @param Buf A pointer to a string that receives the string that is being retrieved. Must be released with
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* HeapFree(GetProcessHeap(), 0, *Buf) after use.
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*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
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*/
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static WINTUN_STATUS
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GetDeviceRegistryString(
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_In_ HDEVINFO DevInfo,
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_In_ SP_DEVINFO_DATA *DevInfoData,
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_In_ DWORD Property,
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_Out_ WCHAR **Buf)
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{
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DWORD Result, ValueType, Size = 256 * sizeof(WCHAR);
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Result = GetDeviceRegistryProperty(DevInfo, DevInfoData, Property, &ValueType, Buf, &Size);
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if (Result != ERROR_SUCCESS)
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return Result;
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switch (ValueType)
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{
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case REG_SZ:
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case REG_EXPAND_SZ:
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case REG_MULTI_SZ:
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Result = RegistryGetString(Buf, Size / sizeof(WCHAR), ValueType);
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if (Result != ERROR_SUCCESS)
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HeapFree(GetProcessHeap(), 0, *Buf);
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return Result;
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default:
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LOG(WINTUN_LOG_ERR, L"Property is not a string");
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HeapFree(GetProcessHeap(), 0, *Buf);
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return ERROR_INVALID_DATATYPE;
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}
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}
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/**
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* Retrieves a specified Plug and Play device property multi-string.
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*
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* @param DevInfo A handle to the device information set that contains a device information element that
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* represents the device for which to open a registry key.
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*
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* @param DevInfoData A pointer to a structure that specifies the device information element in DevInfo.
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*
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* @param Property The property to be retrieved. One of the SPDRP_* constants.
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*
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* @param Buf A pointer to a multi-string that receives the string that is being retrieved. Must be released
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* with HeapFree(GetProcessHeap(), 0, *Buf) after use.
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*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
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*/
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static WINTUN_STATUS
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GetDeviceRegistryMultiString(
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_In_ HDEVINFO DevInfo,
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_In_ SP_DEVINFO_DATA *DevInfoData,
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_In_ DWORD Property,
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_Out_ WCHAR **Buf)
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{
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DWORD Result, ValueType, Size = 256 * sizeof(WCHAR);
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Result = GetDeviceRegistryProperty(DevInfo, DevInfoData, Property, &ValueType, Buf, &Size);
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if (Result != ERROR_SUCCESS)
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return Result;
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switch (ValueType)
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{
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case REG_SZ:
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case REG_EXPAND_SZ:
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case REG_MULTI_SZ:
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Result = RegistryGetMultiString(Buf, Size / sizeof(WCHAR), ValueType);
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if (Result != ERROR_SUCCESS)
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HeapFree(GetProcessHeap(), 0, *Buf);
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return Result;
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default:
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LOG(WINTUN_LOG_ERR, L"Property is not a string");
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HeapFree(GetProcessHeap(), 0, *Buf);
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return ERROR_INVALID_DATATYPE;
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}
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}
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/**
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* Tests if any of device compatible hardware IDs match ours.
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*
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* @param DevInfo A handle to the device information set that contains a device information element that
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* represents the device.
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*
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* @param DevInfoData A pointer to a structure that specifies the device information element in DevInfo.
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*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
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*/
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static WINTUN_STATUS
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IsOurAdapter(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData, _Out_ BOOL *IsOur)
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{
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WCHAR *Hwids;
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DWORD Result = GetDeviceRegistryMultiString(DevInfo, DevInfoData, SPDRP_HARDWAREID, &Hwids);
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if (Result != ERROR_SUCCESS)
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return LOG_ERROR(L"Failed to query hardware ID", Result);
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*IsOur = DriverIsOurHardwareID(Hwids);
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return ERROR_SUCCESS;
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}
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/**
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* Returns a handle to the adapter device object.
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*
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* @param InstanceId Adapter device instance ID.
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*
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* @param Handle Pointer to receive the adapter device object handle. Must be released with CloseHandle.
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*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
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*/
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static WINTUN_STATUS
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GetDeviceObject(_In_opt_z_ const WCHAR *InstanceId, _Out_ HANDLE *Handle)
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{
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HANDLE Heap = GetProcessHeap();
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ULONG InterfacesLen;
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DWORD Result = CM_Get_Device_Interface_List_SizeW(
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&InterfacesLen, (GUID *)&GUID_DEVINTERFACE_NET, (DEVINSTID_W)InstanceId, CM_GET_DEVICE_INTERFACE_LIST_PRESENT);
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if (Result != CR_SUCCESS)
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{
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LOG(WINTUN_LOG_ERR, L"Failed to get device associated device instances size");
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return ERROR_GEN_FAILURE;
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}
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WCHAR *Interfaces = HeapAlloc(Heap, 0, InterfacesLen * sizeof(WCHAR));
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if (!Interfaces)
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return ERROR_OUTOFMEMORY;
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Result = CM_Get_Device_Interface_ListW(
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(GUID *)&GUID_DEVINTERFACE_NET,
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(DEVINSTID_W)InstanceId,
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Interfaces,
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InterfacesLen,
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CM_GET_DEVICE_INTERFACE_LIST_PRESENT);
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if (Result != CR_SUCCESS)
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{
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LOG(WINTUN_LOG_ERR, L"Failed to get device associated device instances");
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Result = ERROR_GEN_FAILURE;
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goto cleanupBuf;
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}
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*Handle = CreateFileW(
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Interfaces,
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
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NULL,
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OPEN_EXISTING,
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0,
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NULL);
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Result = *Handle != INVALID_HANDLE_VALUE ? ERROR_SUCCESS : LOG_LAST_ERROR(L"Failed to connect to device");
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cleanupBuf:
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HeapFree(Heap, 0, Interfaces);
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return Result;
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}
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#define TUN_IOCTL_FORCE_CLOSE_HANDLES CTL_CODE(51820U, 0x971U, METHOD_NEITHER, FILE_READ_DATA | FILE_WRITE_DATA)
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/**
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* Closes all client handles to the Wintun adapter.
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*
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* @param DevInfo A handle to the device information set that contains a device information element that
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* represents the device.
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*
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* @param DevInfoData A pointer to a structure that specifies the device information element in DevInfo.
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*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
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*/
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static WINTUN_STATUS
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ForceCloseWintunAdapterHandle(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData)
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{
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DWORD Result = ERROR_SUCCESS;
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DWORD RequiredBytes;
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if (SetupDiGetDeviceInstanceIdW(DevInfo, DevInfoData, NULL, 0, &RequiredBytes) ||
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(Result = GetLastError()) != ERROR_INSUFFICIENT_BUFFER)
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return LOG_ERROR(L"Failed to query device instance ID size", Result);
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HANDLE Heap = GetProcessHeap();
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WCHAR *InstanceId = HeapAlloc(Heap, HEAP_ZERO_MEMORY, sizeof(*InstanceId) * RequiredBytes);
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if (!InstanceId)
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return ERROR_OUTOFMEMORY;
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if (!SetupDiGetDeviceInstanceIdW(DevInfo, DevInfoData, InstanceId, RequiredBytes, &RequiredBytes))
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{
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Result = LOG_LAST_ERROR(L"Failed to get device instance ID");
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goto out;
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}
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HANDLE NdisHandle;
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Result = GetDeviceObject(InstanceId, &NdisHandle);
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if (Result != ERROR_SUCCESS)
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{
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LOG_ERROR(L"Failed to get adapter device object", Result);
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goto out;
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}
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Result = DeviceIoControl(NdisHandle, TUN_IOCTL_FORCE_CLOSE_HANDLES, NULL, 0, NULL, 0, &RequiredBytes, NULL)
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? ERROR_SUCCESS
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: LOG_LAST_ERROR(L"Failed to perform ioctl");
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CloseHandle(NdisHandle);
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out:
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HeapFree(Heap, 0, InstanceId);
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return Result;
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}
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/**
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* Disables all Wintun adapters.
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*
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* @param DevInfo A handle to the device information set.
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*
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* @param DisabledAdapters Output list of disabled adapters. The adapters disabled are inserted in the list head.
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*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
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*/
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WINTUN_STATUS
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AdapterDisableAllOurs(_In_ HDEVINFO DevInfo, _Inout_ SP_DEVINFO_DATA_LIST **DisabledAdapters)
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{
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SP_PROPCHANGE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER),
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.InstallFunction = DIF_PROPERTYCHANGE },
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.StateChange = DICS_DISABLE,
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.Scope = DICS_FLAG_GLOBAL };
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DWORD Result = ERROR_SUCCESS;
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HANDLE Heap = GetProcessHeap();
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for (DWORD EnumIndex = 0;; ++EnumIndex)
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{
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SP_DEVINFO_DATA_LIST *DeviceNode = HeapAlloc(Heap, 0, sizeof(SP_DEVINFO_DATA_LIST));
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if (!DeviceNode)
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return ERROR_OUTOFMEMORY;
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DeviceNode->Data.cbSize = sizeof(SP_DEVINFO_DATA);
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if (!SetupDiEnumDeviceInfo(DevInfo, EnumIndex, &DeviceNode->Data))
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{
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if (GetLastError() == ERROR_NO_MORE_ITEMS)
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{
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HeapFree(Heap, 0, DeviceNode);
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break;
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}
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goto cleanupDeviceInfoData;
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}
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BOOL IsOur;
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if (IsOurAdapter(DevInfo, &DeviceNode->Data, &IsOur) != ERROR_SUCCESS || !IsOur)
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goto cleanupDeviceInfoData;
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ULONG Status, ProblemCode;
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if (CM_Get_DevNode_Status(&Status, &ProblemCode, DeviceNode->Data.DevInst, 0) != CR_SUCCESS ||
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((Status & DN_HAS_PROBLEM) && ProblemCode == CM_PROB_DISABLED))
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goto cleanupDeviceInfoData;
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LOG(WINTUN_LOG_INFO, L"Force closing all open handles for existing adapter");
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if (ForceCloseWintunAdapterHandle(DevInfo, &DeviceNode->Data) != ERROR_SUCCESS)
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LOG(WINTUN_LOG_WARN, L"Failed to force close adapter handles");
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Sleep(200);
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LOG(WINTUN_LOG_INFO, L"Disabling existing adapter");
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if (!SetupDiSetClassInstallParamsW(DevInfo, &DeviceNode->Data, &Params.ClassInstallHeader, sizeof(Params)) ||
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!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, DevInfo, &DeviceNode->Data))
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{
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LOG_LAST_ERROR(L"Unable to disable existing adapter");
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Result = Result != ERROR_SUCCESS ? Result : GetLastError();
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goto cleanupDeviceInfoData;
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}
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DeviceNode->Next = *DisabledAdapters;
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*DisabledAdapters = DeviceNode;
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continue;
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cleanupDeviceInfoData:
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HeapFree(Heap, 0, &DeviceNode->Data);
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}
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return Result;
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}
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/**
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* Enables all adapters.
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*
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* @param DevInfo A handle to the device information set.
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*
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* @param AdaptersToEnable Input list of adapters to enable.
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*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
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*/
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WINTUN_STATUS
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AdapterEnableAll(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA_LIST *AdaptersToEnable)
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{
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SP_PROPCHANGE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER),
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.InstallFunction = DIF_PROPERTYCHANGE },
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.StateChange = DICS_ENABLE,
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.Scope = DICS_FLAG_GLOBAL };
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DWORD Result = ERROR_SUCCESS;
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for (SP_DEVINFO_DATA_LIST *DeviceNode = AdaptersToEnable; DeviceNode; DeviceNode = DeviceNode->Next)
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{
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LOG(WINTUN_LOG_INFO, L"Enabling existing adapter");
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if (!SetupDiSetClassInstallParamsW(DevInfo, &DeviceNode->Data, &Params.ClassInstallHeader, sizeof(Params)) ||
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!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, DevInfo, &DeviceNode->Data))
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{
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LOG_LAST_ERROR(L"Unable to enable existing adapter");
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Result = Result != ERROR_SUCCESS ? Result : GetLastError();
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}
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}
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return Result;
|
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}
|
|
|
|
/**
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|
* Removes all Wintun adapters.
|
|
*
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* @return ERROR_SUCCESS on success; Win32 error code otherwise.
|
|
*/
|
|
WINTUN_STATUS
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|
AdapterDeleteAllOurs()
|
|
{
|
|
DWORD Result = ERROR_SUCCESS;
|
|
HDEVINFO DevInfo = SetupDiGetClassDevsExW(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
|
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if (DevInfo == INVALID_HANDLE_VALUE)
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return LOG_LAST_ERROR(L"Failed to get present class devices");
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SP_REMOVEDEVICE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER),
|
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.InstallFunction = DIF_REMOVE },
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.Scope = DI_REMOVEDEVICE_GLOBAL };
|
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for (DWORD EnumIndex = 0;; ++EnumIndex)
|
|
{
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|
SP_DEVINFO_DATA DevInfoData = { .cbSize = sizeof(SP_DEVINFO_DATA) };
|
|
if (!SetupDiEnumDeviceInfo(DevInfo, EnumIndex, &DevInfoData))
|
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{
|
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if (GetLastError() == ERROR_NO_MORE_ITEMS)
|
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break;
|
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continue;
|
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}
|
|
|
|
BOOL IsOur;
|
|
if (IsOurAdapter(DevInfo, &DevInfoData, &IsOur) != ERROR_SUCCESS || !IsOur)
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continue;
|
|
|
|
LOG(WINTUN_LOG_INFO, L"Force closing all open handles for existing adapter");
|
|
if (ForceCloseWintunAdapterHandle(DevInfo, &DevInfoData) != ERROR_SUCCESS)
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LOG(WINTUN_LOG_WARN, L"Failed to force close adapter handles");
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Sleep(200);
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|
|
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LOG(WINTUN_LOG_INFO, L"Removing existing adapter");
|
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if (!SetupDiSetClassInstallParamsW(DevInfo, &DevInfoData, &Params.ClassInstallHeader, sizeof(Params)) ||
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!SetupDiCallClassInstaller(DIF_REMOVE, DevInfo, &DevInfoData))
|
|
{
|
|
LOG_LAST_ERROR(L"Unable to remove existing adapter");
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Result = Result != ERROR_SUCCESS ? Result : GetLastError();
|
|
}
|
|
}
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
return Result;
|
|
}
|
|
|
|
void
|
|
AdapterInit()
|
|
{
|
|
Locale = _wcreate_locale(LC_ALL, L"");
|
|
}
|
|
|
|
void
|
|
AdapterCleanup()
|
|
{
|
|
_free_locale(Locale);
|
|
}
|
|
|
|
/**
|
|
* Checks device install parameters if a system reboot is required.
|
|
*/
|
|
static BOOL
|
|
CheckReboot(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData)
|
|
{
|
|
SP_DEVINSTALL_PARAMS_W DevInstallParams = { .cbSize = sizeof(SP_DEVINSTALL_PARAMS_W) };
|
|
if (!SetupDiGetDeviceInstallParamsW(DevInfo, DevInfoData, &DevInstallParams))
|
|
{
|
|
LOG_LAST_ERROR(L"Retrieving device installation parameters failed");
|
|
return FALSE;
|
|
}
|
|
return (DevInstallParams.Flags & (DI_NEEDREBOOT | DI_NEEDRESTART)) != 0;
|
|
}
|
|
|
|
/**
|
|
* Sets device install parameters for a quiet installation.
|
|
*/
|
|
static WINTUN_STATUS
|
|
SetQuietInstall(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData)
|
|
{
|
|
SP_DEVINSTALL_PARAMS_W DevInstallParams = { .cbSize = sizeof(SP_DEVINSTALL_PARAMS_W) };
|
|
if (!SetupDiGetDeviceInstallParamsW(DevInfo, DevInfoData, &DevInstallParams))
|
|
return LOG_LAST_ERROR(L"Retrieving device installation parameters failed");
|
|
DevInstallParams.Flags |= DI_QUIETINSTALL;
|
|
if (!SetupDiSetDeviceInstallParamsW(DevInfo, DevInfoData, &DevInstallParams))
|
|
return LOG_LAST_ERROR(L"Setting device installation parameters failed");
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* Returns adapter GUID associated with device.
|
|
*
|
|
* @param DevInfo A handle to the device information set that contains a device information element that
|
|
* represents the device for which to open a registry key.
|
|
*
|
|
* @param DevInfoData A pointer to a structure that specifies the device information element in DevInfo.
|
|
*
|
|
* @param CfgInstanceID Pointer to a GUID to receive the adapter GUID.
|
|
*
|
|
* @return ERROR_SUCCESS on success; Win32 error code otherwise.
|
|
*/
|
|
static WINTUN_STATUS
|
|
GetNetCfgInstanceId(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData, _Out_ GUID *CfgInstanceID)
|
|
{
|
|
HKEY Key = SetupDiOpenDevRegKey(DevInfo, DevInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DRV, KEY_QUERY_VALUE);
|
|
if (Key == INVALID_HANDLE_VALUE)
|
|
return LOG_LAST_ERROR(L"Opening device registry key failed");
|
|
WCHAR *ValueStr;
|
|
DWORD Result = RegistryQueryString(Key, L"NetCfgInstanceId", &ValueStr);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query NetCfgInstanceId value", Result);
|
|
goto cleanupKey;
|
|
}
|
|
if (FAILED(CLSIDFromString(ValueStr, CfgInstanceID)))
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"NetCfgInstanceId is not a GUID");
|
|
Result = ERROR_INVALID_DATA;
|
|
}
|
|
else
|
|
Result = ERROR_SUCCESS;
|
|
HeapFree(GetProcessHeap(), 0, ValueStr);
|
|
cleanupKey:
|
|
RegCloseKey(Key);
|
|
return Result;
|
|
}
|
|
|
|
/**
|
|
* Returns device info list handle and adapter device info data.
|
|
*
|
|
* @param CfgInstanceID The adapter GUID.
|
|
*
|
|
* @param DevInfo A pointer to receive the handle of the device information set that contains a device information
|
|
* element that represents the device. Must be released with SetupDiDestroyDeviceInfoList(*DevInfo)
|
|
* after use.
|
|
*
|
|
* @param DevInfoData A pointer to a structure that receives specification of the device information element in
|
|
* DevInfo.
|
|
*
|
|
* @return ERROR_SUCCESS on success; ERROR_FILE_NOT_FOUND if the device is not found; Win32 error code otherwise.
|
|
*/
|
|
static WINTUN_STATUS
|
|
GetDevInfoData(_In_ const GUID *CfgInstanceID, _Out_ HDEVINFO *DevInfo, _Out_ SP_DEVINFO_DATA *DevInfoData)
|
|
{
|
|
*DevInfo = SetupDiGetClassDevsExW(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
|
|
if (!*DevInfo)
|
|
return LOG_LAST_ERROR(L"Failed to get present class devices");
|
|
for (DWORD EnumIndex = 0;; ++EnumIndex)
|
|
{
|
|
DevInfoData->cbSize = sizeof(SP_DEVINFO_DATA);
|
|
if (!SetupDiEnumDeviceInfo(*DevInfo, EnumIndex, DevInfoData))
|
|
{
|
|
if (GetLastError() == ERROR_NO_MORE_ITEMS)
|
|
break;
|
|
continue;
|
|
}
|
|
GUID CfgInstanceID2;
|
|
if (GetNetCfgInstanceId(*DevInfo, DevInfoData, &CfgInstanceID2) == ERROR_SUCCESS &&
|
|
!memcmp(CfgInstanceID, &CfgInstanceID2, sizeof(GUID)))
|
|
return ERROR_SUCCESS;
|
|
}
|
|
SetupDiDestroyDeviceInfoList(*DevInfo);
|
|
return ERROR_FILE_NOT_FOUND;
|
|
}
|
|
|
|
/**
|
|
* Removes numbered suffix from adapter name.
|
|
*/
|
|
static void
|
|
RemoveNumberedSuffix(_In_z_ const WCHAR *Name, _Out_ WCHAR *Removed)
|
|
{
|
|
size_t Len = wcslen(Name);
|
|
if (Len && (Name[Len - 1] < L'0' || Name[Len - 1] > L'9'))
|
|
{
|
|
wmemcpy(Removed, Name, Len + 1);
|
|
return;
|
|
}
|
|
for (size_t i = Len; i--;)
|
|
{
|
|
if (Name[i] >= L'0' && Name[i] <= L'9')
|
|
continue;
|
|
if (Name[i] == L' ')
|
|
{
|
|
wmemcpy(Removed, Name, i);
|
|
Removed[i] = 0;
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
wmemcpy(Removed, Name, Len + 1);
|
|
}
|
|
|
|
/**
|
|
* Returns pool-specific device type name.
|
|
*/
|
|
static void
|
|
GetPoolDeviceTypeName(_In_z_count_c_(MAX_POOL) const WCHAR *Pool, _Out_cap_c_(MAX_POOL_DEVICE_TYPE) WCHAR *Name)
|
|
{
|
|
_snwprintf_s(Name, MAX_POOL_DEVICE_TYPE, _TRUNCATE, L"%.*s Tunnel", MAX_POOL, Pool);
|
|
}
|
|
|
|
/**
|
|
* Checks if SPDRP_DEVICEDESC or SPDRP_FRIENDLYNAME match device type name.
|
|
*/
|
|
static WINTUN_STATUS
|
|
IsPoolMember(
|
|
_In_z_count_c_(MAX_POOL) const WCHAR *Pool,
|
|
_In_ HDEVINFO DevInfo,
|
|
_In_ SP_DEVINFO_DATA *DevInfoData,
|
|
_Out_ BOOL *IsMember)
|
|
{
|
|
HANDLE Heap = GetProcessHeap();
|
|
WCHAR *DeviceDesc, *FriendlyName;
|
|
DWORD Result = GetDeviceRegistryString(DevInfo, DevInfoData, SPDRP_DEVICEDESC, &DeviceDesc);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query device description property", Result);
|
|
return Result;
|
|
}
|
|
Result = GetDeviceRegistryString(DevInfo, DevInfoData, SPDRP_FRIENDLYNAME, &FriendlyName);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query friendly name property", Result);
|
|
goto cleanupDeviceDesc;
|
|
}
|
|
WCHAR PoolDeviceTypeName[MAX_POOL_DEVICE_TYPE];
|
|
GetPoolDeviceTypeName(Pool, PoolDeviceTypeName);
|
|
if (!_wcsicmp_l(FriendlyName, PoolDeviceTypeName, Locale) || !_wcsicmp_l(DeviceDesc, PoolDeviceTypeName, Locale))
|
|
{
|
|
*IsMember = TRUE;
|
|
goto cleanupFriendlyName;
|
|
}
|
|
RemoveNumberedSuffix(FriendlyName, FriendlyName);
|
|
RemoveNumberedSuffix(DeviceDesc, DeviceDesc);
|
|
if (!_wcsicmp_l(FriendlyName, PoolDeviceTypeName, Locale) || !_wcsicmp_l(DeviceDesc, PoolDeviceTypeName, Locale))
|
|
{
|
|
*IsMember = TRUE;
|
|
goto cleanupFriendlyName;
|
|
}
|
|
*IsMember = FALSE;
|
|
cleanupFriendlyName:
|
|
HeapFree(Heap, 0, FriendlyName);
|
|
cleanupDeviceDesc:
|
|
HeapFree(Heap, 0, DeviceDesc);
|
|
return Result;
|
|
}
|
|
|
|
/**
|
|
* Creates a Wintun adapter descriptor and populates it from the device's registry key.
|
|
*
|
|
* @param DevInfo A handle to the device information set that contains a device information element that
|
|
* represents the device for which to open a registry key.
|
|
*
|
|
* @param DevInfoData A pointer to a structure that specifies the device information element in DevInfo.
|
|
*
|
|
* @param Pool Name of the adapter pool.
|
|
*
|
|
* @param Adapter Pointer to a handle to receive the adapter descriptor. Must be released with
|
|
* HeapFree(GetProcessHeap(), 0, *Adapter).
|
|
*
|
|
* @return ERROR_SUCCESS on success; ERROR_INVALID_DATATYPE or ERROR_INVALID_DATA on any invalid registry values; Win32
|
|
* error code otherwise.
|
|
*/
|
|
static WINTUN_STATUS
|
|
CreateAdapterData(
|
|
_In_z_count_c_(MAX_POOL) const WCHAR *Pool,
|
|
_In_ HDEVINFO DevInfo,
|
|
_In_ SP_DEVINFO_DATA *DevInfoData,
|
|
_Out_ WINTUN_ADAPTER **Adapter)
|
|
{
|
|
DWORD Result;
|
|
|
|
/* Open HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\<class>\<id> registry key. */
|
|
HKEY Key = SetupDiOpenDevRegKey(DevInfo, DevInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DRV, KEY_QUERY_VALUE);
|
|
if (Key == INVALID_HANDLE_VALUE)
|
|
return LOG_LAST_ERROR(L"Opening device registry key failed");
|
|
|
|
HANDLE Heap = GetProcessHeap();
|
|
*Adapter = HeapAlloc(Heap, 0, sizeof(WINTUN_ADAPTER));
|
|
if (!*Adapter)
|
|
{
|
|
Result = ERROR_OUTOFMEMORY;
|
|
goto cleanupKey;
|
|
}
|
|
|
|
/* Read the NetCfgInstanceId value and convert to GUID. */
|
|
WCHAR *ValueStr;
|
|
Result = RegistryQueryString(Key, L"NetCfgInstanceId", &ValueStr);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query NetCfgInstanceId value", Result);
|
|
goto cleanupAdapter;
|
|
}
|
|
if (FAILED(CLSIDFromString(ValueStr, &(*Adapter)->CfgInstanceID)))
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"NetCfgInstanceId is not a GUID");
|
|
HeapFree(Heap, 0, ValueStr);
|
|
Result = ERROR_INVALID_DATA;
|
|
goto cleanupAdapter;
|
|
}
|
|
HeapFree(Heap, 0, ValueStr);
|
|
|
|
/* Read the NetLuidIndex value. */
|
|
Result = RegistryQueryDWORD(Key, L"NetLuidIndex", &(*Adapter)->LuidIndex);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query NetLuidIndex value", Result);
|
|
goto cleanupAdapter;
|
|
}
|
|
|
|
/* Read the NetLuidIndex value. */
|
|
Result = RegistryQueryDWORD(Key, L"*IfType", &(*Adapter)->IfType);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query *IfType value", Result);
|
|
goto cleanupAdapter;
|
|
}
|
|
|
|
DWORD Size;
|
|
if (!SetupDiGetDeviceInstanceIdW(
|
|
DevInfo, DevInfoData, (*Adapter)->DevInstanceID, _countof((*Adapter)->DevInstanceID), &Size))
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Failed to get device instance ID");
|
|
goto cleanupAdapter;
|
|
}
|
|
|
|
wcsncpy_s((*Adapter)->Pool, _countof((*Adapter)->Pool), Pool, _TRUNCATE);
|
|
Result = ERROR_SUCCESS;
|
|
|
|
cleanupAdapter:
|
|
if (Result != ERROR_SUCCESS)
|
|
HeapFree(Heap, 0, *Adapter);
|
|
cleanupKey:
|
|
RegCloseKey(Key);
|
|
return Result;
|
|
}
|
|
|
|
/**
|
|
* Returns the device-level registry key path.
|
|
*/
|
|
static void
|
|
GetDeviceRegPath(_In_ const WINTUN_ADAPTER *Adapter, _Out_cap_c_(MAX_REG_PATH) WCHAR *Path)
|
|
{
|
|
_snwprintf_s(
|
|
Path,
|
|
MAX_REG_PATH,
|
|
_TRUNCATE,
|
|
L"SYSTEM\\CurrentControlSet\\Enum\\%.*s",
|
|
MAX_INSTANCE_ID,
|
|
Adapter->DevInstanceID);
|
|
}
|
|
|
|
/**
|
|
* Returns the adapter-specific TCP/IP network registry key path.
|
|
*/
|
|
static void
|
|
GetTcpipAdapterRegPath(_In_ const WINTUN_ADAPTER *Adapter, _Out_cap_c_(MAX_REG_PATH) WCHAR *Path)
|
|
{
|
|
WCHAR Guid[MAX_GUID_STRING_LEN];
|
|
_snwprintf_s(
|
|
Path,
|
|
MAX_REG_PATH,
|
|
_TRUNCATE,
|
|
L"SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Adapters\\%.*s",
|
|
StringFromGUID2(&Adapter->CfgInstanceID, Guid, _countof(Guid)),
|
|
Guid);
|
|
}
|
|
|
|
/**
|
|
* Returns the interface-specific TCP/IP network registry key path.
|
|
*/
|
|
static WINTUN_STATUS
|
|
GetTcpipInterfaceRegPath(_In_ const WINTUN_ADAPTER *Adapter, _Out_cap_c_(MAX_REG_PATH) WCHAR *Path)
|
|
{
|
|
DWORD Result;
|
|
HKEY TcpipAdapterRegKey;
|
|
WCHAR TcpipAdapterRegPath[MAX_REG_PATH];
|
|
GetTcpipAdapterRegPath(Adapter, TcpipAdapterRegPath);
|
|
Result = RegOpenKeyExW(HKEY_LOCAL_MACHINE, TcpipAdapterRegPath, 0, KEY_QUERY_VALUE, &TcpipAdapterRegKey);
|
|
if (Result != ERROR_SUCCESS)
|
|
return LOG_ERROR(L"Failed to open registry key", Result);
|
|
WCHAR *Paths;
|
|
Result = RegistryQueryString(TcpipAdapterRegKey, L"IpConfig", &Paths);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query IpConfig value", Result);
|
|
goto cleanupTcpipAdapterRegKey;
|
|
}
|
|
if (!Paths[0])
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"IpConfig is empty");
|
|
Result = ERROR_INVALID_DATA;
|
|
goto cleanupPaths;
|
|
}
|
|
_snwprintf_s(Path, MAX_REG_PATH, _TRUNCATE, L"SYSTEM\\CurrentControlSet\\Services\\%s", Paths);
|
|
cleanupPaths:
|
|
HeapFree(GetProcessHeap(), 0, Paths);
|
|
cleanupTcpipAdapterRegKey:
|
|
RegCloseKey(TcpipAdapterRegKey);
|
|
return Result;
|
|
}
|
|
|
|
/**
|
|
* Releases Wintun adapter resources.
|
|
*
|
|
* @param Adapter Adapter handle obtained with WintunGetAdapter or WintunCreateAdapter.
|
|
*/
|
|
void WINAPI
|
|
WintunFreeAdapter(_In_ WINTUN_ADAPTER *Adapter)
|
|
{
|
|
HeapFree(GetProcessHeap(), 0, Adapter);
|
|
}
|
|
|
|
/**
|
|
* Finds a Wintun adapter by its name.
|
|
*
|
|
* @param Pool Name of the adapter pool.
|
|
*
|
|
* @param Name Adapter name.
|
|
*
|
|
* @param Adapter Pointer to a handle to receive the adapter handle. Must be released with WintunFreeAdapter.
|
|
*
|
|
* @return ERROR_SUCCESS on success; ERROR_FILE_NOT_FOUND if adapter with given name is not found; ERROR_ALREADY_EXISTS
|
|
* if adapter is found but not a Wintun-class or not a member of the pool; Win32 error code otherwise
|
|
*/
|
|
WINTUN_STATUS WINAPI
|
|
WintunGetAdapter(
|
|
_In_z_count_c_(MAX_POOL) const WCHAR *Pool,
|
|
_In_z_count_c_(MAX_ADAPTER_NAME) const WCHAR *Name,
|
|
_Out_ WINTUN_ADAPTER **Adapter)
|
|
{
|
|
DWORD Result;
|
|
HANDLE Mutex = NamespaceTakeMutex(Pool);
|
|
if (!Mutex)
|
|
return ERROR_INVALID_HANDLE;
|
|
|
|
HDEVINFO DevInfo = SetupDiGetClassDevsExW(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
|
|
if (DevInfo == INVALID_HANDLE_VALUE)
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Failed to get present class devices");
|
|
goto cleanupMutex;
|
|
}
|
|
|
|
for (DWORD EnumIndex = 0;; ++EnumIndex)
|
|
{
|
|
SP_DEVINFO_DATA DevInfoData = { .cbSize = sizeof(SP_DEVINFO_DATA) };
|
|
if (!SetupDiEnumDeviceInfo(DevInfo, EnumIndex, &DevInfoData))
|
|
{
|
|
if (GetLastError() == ERROR_NO_MORE_ITEMS)
|
|
break;
|
|
continue;
|
|
}
|
|
|
|
GUID CfgInstanceID;
|
|
if (GetNetCfgInstanceId(DevInfo, &DevInfoData, &CfgInstanceID) != ERROR_SUCCESS)
|
|
continue;
|
|
|
|
/* TODO: is there a better way than comparing ifnames? */
|
|
WCHAR Name2[MAX_ADAPTER_NAME];
|
|
if (NciGetConnectionName(&CfgInstanceID, Name2, sizeof(Name2), NULL) != ERROR_SUCCESS)
|
|
continue;
|
|
Name2[_countof(Name2) - 1] = 0;
|
|
if (_wcsicmp_l(Name, Name2, Locale))
|
|
{
|
|
RemoveNumberedSuffix(Name2, Name2);
|
|
if (_wcsicmp_l(Name, Name2, Locale))
|
|
continue;
|
|
}
|
|
|
|
/* Check the Hardware ID to make sure it's a real Wintun device. */
|
|
BOOL IsOur;
|
|
Result = IsOurAdapter(DevInfo, &DevInfoData, &IsOur);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to determine hardware ID", Result);
|
|
goto cleanupDevInfo;
|
|
}
|
|
if (!IsOur)
|
|
{
|
|
LOG_ERROR(L"Foreign adapter with the same name exists", Result);
|
|
Result = ERROR_ALREADY_EXISTS;
|
|
goto cleanupDevInfo;
|
|
}
|
|
|
|
BOOL IsMember;
|
|
Result = IsPoolMember(Pool, DevInfo, &DevInfoData, &IsMember);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to determine pool membership", Result);
|
|
goto cleanupDevInfo;
|
|
}
|
|
if (!IsMember)
|
|
{
|
|
LOG_ERROR(L"Wintun adapter with the same name exists in another pool", Result);
|
|
Result = ERROR_ALREADY_EXISTS;
|
|
goto cleanupDevInfo;
|
|
}
|
|
|
|
Result = CreateAdapterData(Pool, DevInfo, &DevInfoData, Adapter);
|
|
if (Result != ERROR_SUCCESS)
|
|
LOG_ERROR(L"Failed to create adapter data", Result);
|
|
|
|
goto cleanupDevInfo;
|
|
}
|
|
Result = ERROR_FILE_NOT_FOUND;
|
|
cleanupDevInfo:
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
cleanupMutex:
|
|
NamespaceReleaseMutex(Mutex);
|
|
return Result;
|
|
}
|
|
|
|
/**
|
|
* Returns the name of the Wintun adapter.
|
|
*/
|
|
WINTUN_STATUS WINAPI
|
|
WintunGetAdapterName(_In_ const WINTUN_ADAPTER *Adapter, _Out_cap_c_(MAX_ADAPTER_NAME) WCHAR *Name)
|
|
{
|
|
return NciGetConnectionName(&Adapter->CfgInstanceID, Name, MAX_ADAPTER_NAME * sizeof(WCHAR), NULL);
|
|
}
|
|
|
|
static WINTUN_STATUS
|
|
ConvertInterfaceAliasToGuid(_In_z_ const WCHAR *Name, _Out_ GUID *Guid)
|
|
{
|
|
NET_LUID Luid;
|
|
DWORD Result = ConvertInterfaceAliasToLuid(Name, &Luid);
|
|
if (Result != NO_ERROR)
|
|
return LOG_ERROR(L"Failed convert interface alias name to the locally unique identifier", Result);
|
|
return ConvertInterfaceLuidToGuid(&Luid, Guid);
|
|
}
|
|
|
|
/**
|
|
* Sets name of the Wintun adapter.
|
|
*/
|
|
WINTUN_STATUS WINAPI
|
|
WintunSetAdapterName(_In_ const WINTUN_ADAPTER *Adapter, _In_z_count_c_(MAX_ADAPTER_NAME) const WCHAR *Name)
|
|
{
|
|
DWORD Result;
|
|
const int MaxSuffix = 1000;
|
|
WCHAR AvailableName[MAX_ADAPTER_NAME];
|
|
wcsncpy_s(AvailableName, _countof(AvailableName), Name, _TRUNCATE);
|
|
for (int i = 0;; ++i)
|
|
{
|
|
Result = NciSetConnectionName(&Adapter->CfgInstanceID, AvailableName);
|
|
if (Result == ERROR_DUP_NAME)
|
|
{
|
|
GUID Guid2;
|
|
DWORD Result2 = ConvertInterfaceAliasToGuid(AvailableName, &Guid2);
|
|
if (Result2 == ERROR_SUCCESS)
|
|
{
|
|
for (int j = 0; j < MaxSuffix; ++j)
|
|
{
|
|
WCHAR Proposal[MAX_ADAPTER_NAME];
|
|
_snwprintf_s(Proposal, _countof(Proposal), _TRUNCATE, L"%.*s %d", MAX_ADAPTER_NAME, Name, j + 1);
|
|
if (_wcsnicmp(Proposal, AvailableName, MAX_ADAPTER_NAME) == 0)
|
|
continue;
|
|
Result2 = NciSetConnectionName(&Guid2, Proposal);
|
|
if (Result2 == ERROR_DUP_NAME)
|
|
continue;
|
|
if (Result2 == ERROR_SUCCESS)
|
|
{
|
|
Result = NciSetConnectionName(&Adapter->CfgInstanceID, AvailableName);
|
|
if (Result == ERROR_SUCCESS)
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (Result == ERROR_SUCCESS)
|
|
break;
|
|
if (i > MaxSuffix || Result != ERROR_DUP_NAME)
|
|
return LOG_ERROR(L"Setting adapter name failed", Result);
|
|
_snwprintf_s(AvailableName, _countof(AvailableName), _TRUNCATE, L"%.*s %d", MAX_ADAPTER_NAME, Name, i + 1);
|
|
}
|
|
|
|
/* TODO: This should use NetSetup2 so that it doesn't get unset. */
|
|
HKEY DeviceRegKey;
|
|
WCHAR DeviceRegPath[MAX_REG_PATH];
|
|
GetDeviceRegPath(Adapter, DeviceRegPath);
|
|
Result = RegOpenKeyExW(HKEY_LOCAL_MACHINE, DeviceRegPath, 0, KEY_SET_VALUE, &DeviceRegKey);
|
|
if (Result != ERROR_SUCCESS)
|
|
return LOG_ERROR(L"Failed to open registry key", Result);
|
|
WCHAR PoolDeviceTypeName[MAX_POOL_DEVICE_TYPE];
|
|
GetPoolDeviceTypeName(Adapter->Pool, PoolDeviceTypeName);
|
|
Result = RegSetKeyValueW(
|
|
DeviceRegKey,
|
|
NULL,
|
|
L"FriendlyName",
|
|
REG_SZ,
|
|
PoolDeviceTypeName,
|
|
(DWORD)((wcslen(PoolDeviceTypeName) + 1) * sizeof(WCHAR)));
|
|
RegCloseKey(DeviceRegKey);
|
|
return Result;
|
|
}
|
|
|
|
/**
|
|
* Returns the GUID of the adapter.
|
|
*
|
|
* @param Adapter Adapter handle obtained with WintunGetAdapter or WintunCreateAdapter
|
|
*
|
|
* @param Guid Pointer to GUID to receive adapter ID.
|
|
*/
|
|
void WINAPI
|
|
WintunGetAdapterGUID(_In_ const WINTUN_ADAPTER *Adapter, _Out_ GUID *Guid)
|
|
{
|
|
memcpy(Guid, &Adapter->CfgInstanceID, sizeof(GUID));
|
|
}
|
|
|
|
/**
|
|
* Returns the LUID of the adapter.
|
|
*
|
|
* @param Adapter Adapter handle obtained with WintunGetAdapter or WintunCreateAdapter
|
|
*
|
|
* @param Luid Pointer to LUID to receive adapter LUID.
|
|
*/
|
|
void WINAPI
|
|
WintunGetAdapterLUID(_In_ const WINTUN_ADAPTER *Adapter, _Out_ LUID *Luid)
|
|
{
|
|
*(LONGLONG *)Luid = (((LONGLONG)Adapter->LuidIndex & ((1 << 24) - 1)) << 24) |
|
|
(((LONGLONG)Adapter->IfType & ((1 << 16) - 1)) << 48);
|
|
}
|
|
|
|
/**
|
|
* Returns a handle to the adapter device object.
|
|
*
|
|
* @param Adapter Adapter handle obtained with WintunGetAdapter or WintunCreateAdapter.
|
|
*
|
|
* @param Handle Pointer to receive the adapter device object handle. Must be released with CloseHandle.
|
|
*
|
|
* @return ERROR_SUCCESS on success; Win32 error code otherwise.
|
|
*/
|
|
WINTUN_STATUS WINAPI
|
|
WintunGetAdapterDeviceObject(_In_ const WINTUN_ADAPTER *Adapter, _Out_ HANDLE *Handle)
|
|
{
|
|
return GetDeviceObject(Adapter->DevInstanceID, Handle);
|
|
}
|
|
|
|
/**
|
|
* @return TRUE if DrvInfoData date and version is newer than supplied parameters.
|
|
*/
|
|
static BOOL
|
|
IsNewer(_In_ const SP_DRVINFO_DATA_W *DrvInfoData, _In_ const FILETIME *DriverDate, _In_ DWORDLONG DriverVersion)
|
|
{
|
|
if (DrvInfoData->DriverDate.dwHighDateTime > DriverDate->dwHighDateTime)
|
|
return TRUE;
|
|
if (DrvInfoData->DriverDate.dwHighDateTime < DriverDate->dwHighDateTime)
|
|
return FALSE;
|
|
|
|
if (DrvInfoData->DriverDate.dwLowDateTime > DriverDate->dwLowDateTime)
|
|
return TRUE;
|
|
if (DrvInfoData->DriverDate.dwLowDateTime < DriverDate->dwLowDateTime)
|
|
return FALSE;
|
|
|
|
if (DrvInfoData->DriverVersion > DriverVersion)
|
|
return TRUE;
|
|
if (DrvInfoData->DriverVersion < DriverVersion)
|
|
return FALSE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* Creates a Wintun adapter.
|
|
*
|
|
* @param Pool Name of the adapter pool.
|
|
*
|
|
* @param Name The requested name of the adapter.
|
|
*
|
|
* @param RequestedGUID The GUID of the created network adapter, which then influences NLA generation
|
|
* deterministically. If it is set to NULL, the GUID is chosen by the system at random, and hence
|
|
* a new NLA entry is created for each new adapter. It is called "requested" GUID because the API
|
|
* it uses is completely undocumented, and so there could be minor interesting complications with
|
|
* its usage.
|
|
*
|
|
* @param Adapter Pointer to a handle to receive the adapter handle. Must be released with
|
|
* WintunFreeAdapter.
|
|
*
|
|
* @param RebootRequired Pointer to a boolean flag to be set to TRUE in case SetupAPI suggests a reboot. Must be
|
|
* initialised to FALSE manually before this function is called.
|
|
*
|
|
* @return ERROR_SUCCESS on success; Win32 error code otherwise.
|
|
*/
|
|
WINTUN_STATUS WINAPI
|
|
WintunCreateAdapter(
|
|
_In_z_count_c_(MAX_POOL) const WCHAR *Pool,
|
|
_In_z_count_c_(MAX_ADAPTER_NAME) const WCHAR *Name,
|
|
_In_opt_ const GUID *RequestedGUID,
|
|
_Out_ WINTUN_ADAPTER **Adapter,
|
|
_Inout_ BOOL *RebootRequired)
|
|
{
|
|
DWORD Result;
|
|
HANDLE Mutex = NamespaceTakeMutex(Pool);
|
|
if (!Mutex)
|
|
return ERROR_INVALID_HANDLE;
|
|
|
|
HDEVINFO DevInfo = SetupDiCreateDeviceInfoListExW(&GUID_DEVCLASS_NET, NULL, NULL, NULL);
|
|
if (DevInfo == INVALID_HANDLE_VALUE)
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Creating empty device information set failed");
|
|
goto cleanupMutex;
|
|
}
|
|
|
|
WCHAR ClassName[MAX_CLASS_NAME_LEN];
|
|
if (!SetupDiClassNameFromGuidExW(&GUID_DEVCLASS_NET, ClassName, _countof(ClassName), NULL, NULL, NULL))
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Retrieving class name associated with class GUID failed");
|
|
goto cleanupDevInfo;
|
|
}
|
|
|
|
HANDLE Heap = GetProcessHeap();
|
|
WCHAR PoolDeviceTypeName[MAX_POOL_DEVICE_TYPE];
|
|
GetPoolDeviceTypeName(Pool, PoolDeviceTypeName);
|
|
SP_DEVINFO_DATA DevInfoData = { .cbSize = sizeof(SP_DEVINFO_DATA) };
|
|
if (!SetupDiCreateDeviceInfoW(
|
|
DevInfo, ClassName, &GUID_DEVCLASS_NET, PoolDeviceTypeName, NULL, DICD_GENERATE_ID, &DevInfoData))
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Creating new device information element failed");
|
|
goto cleanupDevInfo;
|
|
}
|
|
SetQuietInstall(DevInfo, &DevInfoData);
|
|
|
|
if (!SetupDiSetSelectedDevice(DevInfo, &DevInfoData))
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Failed selecting device");
|
|
goto cleanupDevInfo;
|
|
}
|
|
|
|
static const WCHAR Hwids[_countof(WINTUN_HWID) + 1 /*Multi-string terminator*/] = WINTUN_HWID;
|
|
if (!SetupDiSetDeviceRegistryPropertyW(DevInfo, &DevInfoData, SPDRP_HARDWAREID, (const BYTE *)Hwids, sizeof(Hwids)))
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Failed setting hardware ID");
|
|
goto cleanupDevInfo;
|
|
}
|
|
if (!SetupDiBuildDriverInfoList(DevInfo, &DevInfoData, SPDIT_COMPATDRIVER)) /* TODO: This takes ~510ms */
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Failed building driver info list");
|
|
goto cleanupDevInfo;
|
|
}
|
|
|
|
FILETIME DriverDate = { 0, 0 };
|
|
DWORDLONG DriverVersion = 0;
|
|
for (DWORD EnumIndex = 0;; ++EnumIndex) /* TODO: This loop takes ~600ms */
|
|
{
|
|
SP_DRVINFO_DATA_W DrvInfoData = { .cbSize = sizeof(SP_DRVINFO_DATA_W) };
|
|
if (!SetupDiEnumDriverInfoW(DevInfo, &DevInfoData, SPDIT_COMPATDRIVER, EnumIndex, &DrvInfoData))
|
|
{
|
|
if (GetLastError() == ERROR_NO_MORE_ITEMS)
|
|
break;
|
|
continue;
|
|
}
|
|
|
|
/* Check the driver version first, since the check is trivial and will save us iterating over hardware IDs for
|
|
* any driver versioned prior our best match. */
|
|
if (!IsNewer(&DrvInfoData, &DriverDate, DriverVersion))
|
|
continue;
|
|
|
|
SP_DRVINFO_DETAIL_DATA_W *DrvInfoDetailData;
|
|
if (AdapterGetDrvInfoDetail(DevInfo, &DevInfoData, &DrvInfoData, &DrvInfoDetailData) != ERROR_SUCCESS)
|
|
continue;
|
|
if (!DriverIsOurDrvInfoDetail(DrvInfoDetailData))
|
|
{
|
|
HeapFree(Heap, 0, DrvInfoDetailData);
|
|
continue;
|
|
}
|
|
HeapFree(Heap, 0, DrvInfoDetailData);
|
|
|
|
if (!SetupDiSetSelectedDriverW(DevInfo, &DevInfoData, &DrvInfoData))
|
|
continue;
|
|
|
|
DriverDate = DrvInfoData.DriverDate;
|
|
DriverVersion = DrvInfoData.DriverVersion;
|
|
}
|
|
|
|
if (!DriverVersion)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"No appropriate drivers found");
|
|
Result = ERROR_FILE_NOT_FOUND;
|
|
goto cleanupDriverInfoList;
|
|
}
|
|
|
|
if (!SetupDiCallClassInstaller(DIF_REGISTERDEVICE, DevInfo, &DevInfoData))
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Registering device failed");
|
|
goto cleanupDevice;
|
|
}
|
|
if (!SetupDiCallClassInstaller(DIF_REGISTER_COINSTALLERS, DevInfo, &DevInfoData))
|
|
LOG_LAST_ERROR(L"Registering coinstallers failed");
|
|
|
|
HKEY NetDevRegKey = INVALID_HANDLE_VALUE;
|
|
const int PollTimeout = 50 /* ms */;
|
|
for (int i = 0; NetDevRegKey == INVALID_HANDLE_VALUE && i < WAIT_FOR_REGISTRY_TIMEOUT / PollTimeout; ++i)
|
|
{
|
|
if (i)
|
|
Sleep(PollTimeout);
|
|
NetDevRegKey = SetupDiOpenDevRegKey(
|
|
DevInfo, &DevInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DRV, KEY_SET_VALUE | KEY_QUERY_VALUE | KEY_NOTIFY);
|
|
}
|
|
if (NetDevRegKey == INVALID_HANDLE_VALUE)
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Failed to open device-specific registry key");
|
|
goto cleanupDevice;
|
|
}
|
|
if (RequestedGUID)
|
|
{
|
|
WCHAR RequestedGUIDStr[MAX_GUID_STRING_LEN];
|
|
Result = RegSetValueExW(
|
|
NetDevRegKey,
|
|
L"NetSetupAnticipatedInstanceId",
|
|
0,
|
|
REG_SZ,
|
|
(const BYTE *)RequestedGUIDStr,
|
|
StringFromGUID2(RequestedGUID, RequestedGUIDStr, _countof(RequestedGUIDStr)) * sizeof(WCHAR));
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_LAST_ERROR(L"Failed to set NetSetupAnticipatedInstanceId");
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
}
|
|
|
|
if (!SetupDiCallClassInstaller(DIF_INSTALLINTERFACES, DevInfo, &DevInfoData))
|
|
LOG_LAST_ERROR(L"Installing interfaces failed");
|
|
|
|
if (!SetupDiCallClassInstaller(DIF_INSTALLDEVICE, DevInfo, &DevInfoData))
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Installing device failed");
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
*RebootRequired = *RebootRequired || CheckReboot(DevInfo, &DevInfoData);
|
|
|
|
if (!SetupDiSetDeviceRegistryPropertyW(
|
|
DevInfo,
|
|
&DevInfoData,
|
|
SPDRP_DEVICEDESC,
|
|
(const BYTE *)PoolDeviceTypeName,
|
|
(DWORD)((wcslen(PoolDeviceTypeName) + 1) * sizeof(WCHAR))))
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Failed to set device description");
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
|
|
/* DIF_INSTALLDEVICE returns almost immediately, while the device installation continues in the background. It might
|
|
* take a while, before all registry keys and values are populated. */
|
|
WCHAR *DummyStr;
|
|
Result = RegistryQueryStringWait(NetDevRegKey, L"NetCfgInstanceId", WAIT_FOR_REGISTRY_TIMEOUT, &DummyStr);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query NetCfgInstanceId value", Result);
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
HeapFree(Heap, 0, DummyStr);
|
|
DWORD DummyDWORD;
|
|
Result = RegistryQueryDWORDWait(NetDevRegKey, L"NetLuidIndex", WAIT_FOR_REGISTRY_TIMEOUT, &DummyDWORD);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query NetLuidIndex value", Result);
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
Result = RegistryQueryDWORDWait(NetDevRegKey, L"*IfType", WAIT_FOR_REGISTRY_TIMEOUT, &DummyDWORD);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query *IfType value", Result);
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
|
|
Result = CreateAdapterData(Pool, DevInfo, &DevInfoData, Adapter);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to create adapter data", Result);
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
|
|
HKEY TcpipAdapterRegKey;
|
|
WCHAR TcpipAdapterRegPath[MAX_REG_PATH];
|
|
GetTcpipAdapterRegPath(*Adapter, TcpipAdapterRegPath);
|
|
Result = RegistryOpenKeyWait(
|
|
HKEY_LOCAL_MACHINE,
|
|
TcpipAdapterRegPath,
|
|
KEY_QUERY_VALUE | KEY_NOTIFY,
|
|
WAIT_FOR_REGISTRY_TIMEOUT,
|
|
&TcpipAdapterRegKey);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to open adapter-specific TCP/IP adapter registry key", Result);
|
|
goto cleanupAdapter;
|
|
}
|
|
Result = RegistryQueryStringWait(TcpipAdapterRegKey, L"IpConfig", WAIT_FOR_REGISTRY_TIMEOUT, &DummyStr);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to query IpConfig value", Result);
|
|
goto cleanupTcpipAdapterRegKey;
|
|
}
|
|
HeapFree(Heap, 0, DummyStr);
|
|
|
|
HKEY TcpipInterfaceRegKey;
|
|
WCHAR TcpipInterfaceRegPath[MAX_REG_PATH];
|
|
Result = GetTcpipInterfaceRegPath(*Adapter, TcpipInterfaceRegPath);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to determine interface-specific TCP/IP network registry key path", Result);
|
|
goto cleanupTcpipAdapterRegKey;
|
|
}
|
|
Result = RegistryOpenKeyWait(
|
|
HKEY_LOCAL_MACHINE,
|
|
TcpipInterfaceRegPath,
|
|
KEY_QUERY_VALUE | KEY_SET_VALUE,
|
|
WAIT_FOR_REGISTRY_TIMEOUT,
|
|
&TcpipInterfaceRegKey);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to open interface-specific TCP/IP network registry key", Result);
|
|
goto cleanupTcpipAdapterRegKey;
|
|
}
|
|
|
|
static const DWORD EnableDeadGWDetect = 0;
|
|
Result = RegSetKeyValueW(
|
|
TcpipInterfaceRegKey, NULL, L"EnableDeadGWDetect", REG_DWORD, &EnableDeadGWDetect, sizeof(EnableDeadGWDetect));
|
|
if (Result != ERROR_SUCCESS)
|
|
LOG_ERROR(L"Failed to set EnableDeadGWDetect", Result);
|
|
|
|
Result = WintunSetAdapterName(*Adapter, Name);
|
|
if (Result != ERROR_SUCCESS)
|
|
LOG_ERROR(L"Failed to set adapter name", Result);
|
|
RegCloseKey(TcpipInterfaceRegKey);
|
|
cleanupTcpipAdapterRegKey:
|
|
RegCloseKey(TcpipAdapterRegKey);
|
|
cleanupAdapter:
|
|
if (Result != ERROR_SUCCESS)
|
|
HeapFree(Heap, 0, *Adapter);
|
|
cleanupNetDevRegKey:
|
|
RegCloseKey(NetDevRegKey);
|
|
cleanupDevice:
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
/* The adapter failed to install, or the adapter ID was unobtainable. Clean-up. */
|
|
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))
|
|
*RebootRequired = *RebootRequired || CheckReboot(DevInfo, &DevInfoData);
|
|
}
|
|
cleanupDriverInfoList:
|
|
SetupDiDestroyDriverInfoList(DevInfo, &DevInfoData, SPDIT_COMPATDRIVER);
|
|
cleanupDevInfo:
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
cleanupMutex:
|
|
NamespaceReleaseMutex(Mutex);
|
|
return Result;
|
|
}
|
|
|
|
/**
|
|
* Deletes a Wintun adapter.
|
|
*
|
|
* @param Adapter Adapter handle obtained with WintunGetAdapter or WintunCreateAdapter.
|
|
*
|
|
* @param RebootRequired Pointer to a boolean flag to be set to TRUE in case SetupAPI suggests a reboot. Must be
|
|
* initialised to FALSE manually before this function is called.
|
|
*
|
|
* @return ERROR_SUCCESS on success or the adapter was not found; Win32 error code otherwise.
|
|
*/
|
|
WINTUN_STATUS WINAPI
|
|
WintunDeleteAdapter(_In_ const WINTUN_ADAPTER *Adapter, _Inout_ BOOL *RebootRequired)
|
|
{
|
|
HDEVINFO DevInfo;
|
|
SP_DEVINFO_DATA DevInfoData;
|
|
DWORD Result = GetDevInfoData(&Adapter->CfgInstanceID, &DevInfo, &DevInfoData);
|
|
if (Result == ERROR_FILE_NOT_FOUND)
|
|
return ERROR_SUCCESS;
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to get device info data", Result);
|
|
return Result;
|
|
}
|
|
SetQuietInstall(DevInfo, &DevInfoData);
|
|
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))
|
|
*RebootRequired = *RebootRequired || CheckReboot(DevInfo, &DevInfoData);
|
|
else
|
|
Result = LOG_LAST_ERROR(L"Unable to remove existing adapter");
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
return Result;
|
|
}
|
|
|
|
/**
|
|
* Enumerates all Wintun adapters.
|
|
*
|
|
* @param Pool Name of the adapter pool.
|
|
*
|
|
* @param Func Callback function. To continue enumeration, the callback function must return TRUE; to stop
|
|
* enumeration, it must return FALSE.
|
|
*
|
|
* @param Param An application-defined value to be passed to the callback function.
|
|
*
|
|
* @return ERROR_SUCCESS on success; Win32 error code otherwise.
|
|
*/
|
|
WINTUN_STATUS WINAPI
|
|
WintunEnumAdapters(_In_z_count_c_(MAX_POOL) const WCHAR *Pool, _In_ WINTUN_ENUM_FUNC Func, _In_ LPARAM Param)
|
|
{
|
|
HANDLE Mutex = NamespaceTakeMutex(Pool);
|
|
if (!Mutex)
|
|
return ERROR_INVALID_HANDLE;
|
|
DWORD Result = ERROR_SUCCESS;
|
|
HDEVINFO DevInfo = SetupDiGetClassDevsExW(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
|
|
if (DevInfo == INVALID_HANDLE_VALUE)
|
|
{
|
|
Result = LOG_LAST_ERROR(L"Failed to get present class devices");
|
|
goto cleanupMutex;
|
|
}
|
|
HANDLE Heap = GetProcessHeap();
|
|
BOOL Continue = TRUE;
|
|
for (DWORD EnumIndex = 0; Continue; ++EnumIndex)
|
|
{
|
|
SP_DEVINFO_DATA DevInfoData = { .cbSize = sizeof(SP_DEVINFO_DATA) };
|
|
if (!SetupDiEnumDeviceInfo(DevInfo, EnumIndex, &DevInfoData))
|
|
{
|
|
if (GetLastError() == ERROR_NO_MORE_ITEMS)
|
|
break;
|
|
continue;
|
|
}
|
|
|
|
BOOL IsOur;
|
|
Result = IsOurAdapter(DevInfo, &DevInfoData, &IsOur);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to determine hardware ID", Result);
|
|
break;
|
|
}
|
|
if (!IsOur)
|
|
continue;
|
|
|
|
BOOL IsMember;
|
|
Result = IsPoolMember(Pool, DevInfo, &DevInfoData, &IsMember);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to determine pool membership", Result);
|
|
break;
|
|
}
|
|
if (!IsMember)
|
|
continue;
|
|
|
|
WINTUN_ADAPTER *Adapter;
|
|
Result = CreateAdapterData(Pool, DevInfo, &DevInfoData, &Adapter);
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to create adapter data", Result);
|
|
break;
|
|
}
|
|
Continue = Func(Adapter, Param);
|
|
HeapFree(Heap, 0, Adapter);
|
|
}
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
cleanupMutex:
|
|
NamespaceReleaseMutex(Mutex);
|
|
return Result;
|
|
}
|