1887 lines
65 KiB
C
1887 lines
65 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 "adapter.h"
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#include "elevate.h"
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#include "entry.h"
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#include "logger.h"
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#include "namespace.h"
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#include "nci.h"
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#include "ntdll.h"
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#include "registry.h"
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#include "resource.h"
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#include "wintun-inf.h"
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#include <Windows.h>
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#include <winternl.h>
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#define _NTDEF_ /* TODO: figure out how to include ntsecapi and winternal together without requiring this */
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#include <cfgmgr32.h>
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#include <devguid.h>
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#include <iphlpapi.h>
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#include <ndisguid.h>
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#include <NTSecAPI.h>
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#include <SetupAPI.h>
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#include <Shlwapi.h>
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#include <wchar.h>
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#include <initguid.h> /* Keep these two at bottom in this order, so that we only generate extra GUIDs for devpkey. The other keys we'll get from uuid.lib like usual. */
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#include <devpkey.h>
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#pragma warning(disable : 4221) /* nonstandard: address of automatic in initializer */
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#define WAIT_FOR_REGISTRY_TIMEOUT 10000 /* ms */
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#define MAX_POOL_DEVICE_TYPE (WINTUN_MAX_POOL + 8) /* Should accommodate a pool name with " Tunnel" appended */
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#if defined(_M_IX86)
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# define IMAGE_FILE_PROCESS IMAGE_FILE_MACHINE_I386
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#elif defined(_M_AMD64)
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# define IMAGE_FILE_PROCESS IMAGE_FILE_MACHINE_AMD64
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#elif defined(_M_ARM)
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# define IMAGE_FILE_PROCESS IMAGE_FILE_MACHINE_ARMNT
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#elif defined(_M_ARM64)
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# define IMAGE_FILE_PROCESS IMAGE_FILE_MACHINE_ARM64
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#else
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# error Unsupported architecture
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#endif
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typedef struct _SP_DEVINFO_DATA_LIST
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{
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SP_DEVINFO_DATA Data;
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struct _SP_DEVINFO_DATA_LIST *Next;
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} SP_DEVINFO_DATA_LIST;
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static USHORT NativeMachine = IMAGE_FILE_PROCESS;
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static _Return_type_success_(return != NULL) SP_DRVINFO_DETAIL_DATA_W *GetAdapterDrvInfoDetail(
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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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{
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DWORD Size = sizeof(SP_DRVINFO_DETAIL_DATA_W) + 0x100;
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for (;;)
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{
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SP_DRVINFO_DETAIL_DATA_W *DrvInfoDetailData = Alloc(Size);
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if (!DrvInfoDetailData)
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return NULL;
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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 DrvInfoDetailData;
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DWORD LastError = GetLastError();
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Free(DrvInfoDetailData);
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if (LastError != ERROR_INSUFFICIENT_BUFFER)
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{
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SetLastError(LOG_ERROR(L"Failed", LastError));
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return NULL;
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}
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}
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}
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static _Return_type_success_(return != NULL) void *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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_Inout_ DWORD *BufLen)
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{
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for (;;)
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{
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BYTE *Data = Alloc(*BufLen);
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if (!Data)
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return NULL;
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if (SetupDiGetDeviceRegistryPropertyW(DevInfo, DevInfoData, Property, ValueType, Data, *BufLen, BufLen))
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return Data;
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DWORD LastError = GetLastError();
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Free(Data);
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if (LastError != ERROR_INSUFFICIENT_BUFFER)
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{
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SetLastError(LOG_ERROR(L"Querying property failed", LastError));
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return NULL;
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}
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}
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}
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static _Return_type_success_(return != NULL)
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WCHAR *GetDeviceRegistryString(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData, _In_ DWORD Property)
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{
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DWORD LastError, ValueType, Size = 256 * sizeof(WCHAR);
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WCHAR *Buf = GetDeviceRegistryProperty(DevInfo, DevInfoData, Property, &ValueType, &Size);
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if (!Buf)
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return NULL;
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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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if (RegistryGetString(&Buf, Size / sizeof(WCHAR), ValueType))
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return Buf;
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LastError = GetLastError();
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break;
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default:
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LOG(WINTUN_LOG_ERR, L"Property is not a string");
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LastError = ERROR_INVALID_DATATYPE;
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}
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Free(Buf);
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SetLastError(LastError);
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return NULL;
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}
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static _Return_type_success_(return != NULL)
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WCHAR *GetDeviceRegistryMultiString(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData, _In_ DWORD Property)
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{
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DWORD LastError, ValueType, Size = 256 * sizeof(WCHAR);
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WCHAR *Buf = GetDeviceRegistryProperty(DevInfo, DevInfoData, Property, &ValueType, &Size);
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if (!Buf)
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return NULL;
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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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if (RegistryGetMultiString(&Buf, Size / sizeof(WCHAR), ValueType))
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return Buf;
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LastError = GetLastError();
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break;
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default:
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LOG(WINTUN_LOG_ERR, L"Property is not a string");
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LastError = ERROR_INVALID_DATATYPE;
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}
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Free(Buf);
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SetLastError(LastError);
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return NULL;
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}
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static BOOL
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IsOurHardwareID(_In_z_ const WCHAR *Hwids)
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{
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for (; Hwids[0]; Hwids += wcslen(Hwids) + 1)
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if (!_wcsicmp(Hwids, WINTUN_HWID))
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return TRUE;
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return FALSE;
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}
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static BOOL
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IsOurAdapter(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData)
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{
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WCHAR *Hwids = GetDeviceRegistryMultiString(DevInfo, DevInfoData, SPDRP_HARDWAREID);
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if (!Hwids)
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{
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LOG_LAST_ERROR(L"Failed to get hardware ID");
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return FALSE;
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}
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BOOL IsOurs = IsOurHardwareID(Hwids);
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Free(Hwids);
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return IsOurs;
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}
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static _Return_type_success_(return != INVALID_HANDLE_VALUE) HANDLE OpenDeviceObject(_In_opt_z_ const WCHAR *InstanceId)
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{
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ULONG InterfacesLen;
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DWORD LastError = CM_MapCrToWin32Err(
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CM_Get_Device_Interface_List_SizeW(
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&InterfacesLen,
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(GUID *)&GUID_DEVINTERFACE_NET,
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(DEVINSTID_W)InstanceId,
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CM_GET_DEVICE_INTERFACE_LIST_PRESENT),
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ERROR_GEN_FAILURE);
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if (LastError != ERROR_SUCCESS)
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{
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SetLastError(LOG_ERROR(L"Failed to query associated instances size", LastError));
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return INVALID_HANDLE_VALUE;
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}
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WCHAR *Interfaces = Alloc(InterfacesLen * sizeof(WCHAR));
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if (!Interfaces)
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return INVALID_HANDLE_VALUE;
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HANDLE Handle = INVALID_HANDLE_VALUE;
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LastError = CM_MapCrToWin32Err(
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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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ERROR_GEN_FAILURE);
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if (LastError != ERROR_SUCCESS)
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{
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LOG_ERROR(L"Failed to get associated instances", LastError);
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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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LastError = Handle != INVALID_HANDLE_VALUE ? ERROR_SUCCESS : LOG_LAST_ERROR(L"Failed to connect to adapter");
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cleanupBuf:
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Free(Interfaces);
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if (LastError != ERROR_SUCCESS)
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SetLastError(LastError);
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return Handle;
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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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static _Return_type_success_(return != FALSE) BOOL
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ForceCloseWintunAdapterHandle(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData)
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{
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DWORD LastError = ERROR_SUCCESS;
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DWORD RequiredBytes;
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if (SetupDiGetDeviceInstanceIdW(DevInfo, DevInfoData, NULL, 0, &RequiredBytes) ||
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(LastError = GetLastError()) != ERROR_INSUFFICIENT_BUFFER)
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{
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LOG_ERROR(L"Failed to query instance ID size", LastError);
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return FALSE;
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}
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WCHAR *InstanceId = Zalloc(sizeof(*InstanceId) * RequiredBytes);
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if (!InstanceId)
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return FALSE;
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if (!SetupDiGetDeviceInstanceIdW(DevInfo, DevInfoData, InstanceId, RequiredBytes, &RequiredBytes))
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{
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LastError = LOG_LAST_ERROR(L"Failed to get instance ID");
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goto cleanupInstanceId;
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}
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HANDLE NdisHandle = OpenDeviceObject(InstanceId);
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if (NdisHandle == INVALID_HANDLE_VALUE)
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{
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LastError = LOG(WINTUN_LOG_ERR, L"Failed to get adapter object");
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goto cleanupInstanceId;
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}
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if (DeviceIoControl(NdisHandle, TUN_IOCTL_FORCE_CLOSE_HANDLES, NULL, 0, NULL, 0, &RequiredBytes, NULL))
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{
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LastError = ERROR_SUCCESS;
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Sleep(200);
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}
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else if (GetLastError() == ERROR_NOTHING_TO_TERMINATE)
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LastError = ERROR_SUCCESS;
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else
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LastError = LOG_LAST_ERROR(L"Failed to perform ioctl");
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CloseHandle(NdisHandle);
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cleanupInstanceId:
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Free(InstanceId);
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return RET_ERROR(TRUE, LastError);
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}
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static _Return_type_success_(return != FALSE) BOOL
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DisableAllOurAdapters(_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 LastError = ERROR_SUCCESS;
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for (DWORD EnumIndex = 0;; ++EnumIndex)
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{
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SP_DEVINFO_DATA_LIST *DeviceNode = Alloc(sizeof(SP_DEVINFO_DATA_LIST));
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if (!DeviceNode)
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return FALSE;
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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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Free(DeviceNode);
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break;
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}
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goto cleanupDeviceNode;
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}
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if (!IsOurAdapter(DevInfo, &DeviceNode->Data))
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goto cleanupDeviceNode;
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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 cleanupDeviceNode;
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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))
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LOG(WINTUN_LOG_WARN, L"Failed to force close adapter handles");
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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"Failed to disable existing adapter");
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LastError = LastError != ERROR_SUCCESS ? LastError : GetLastError();
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goto cleanupDeviceNode;
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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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cleanupDeviceNode:
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Free(DeviceNode);
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}
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return RET_ERROR(TRUE, LastError);
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}
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static _Return_type_success_(return != FALSE) BOOL
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EnableAllOurAdapters(_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 LastError = 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"Failed to enable existing adapter");
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LastError = LastError != ERROR_SUCCESS ? LastError : GetLastError();
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}
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}
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return RET_ERROR(TRUE, LastError);
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}
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void
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AdapterInit(void)
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{
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if (!MAYBE_WOW64)
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return;
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typedef BOOL(WINAPI * IsWow64Process2_t)(
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_In_ HANDLE hProcess, _Out_ USHORT * pProcessMachine, _Out_opt_ USHORT * pNativeMachine);
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HANDLE Kernel32;
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IsWow64Process2_t IsWow64Process2;
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USHORT ProcessMachine;
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if ((Kernel32 = GetModuleHandleW(L"kernel32.dll")) == NULL ||
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(IsWow64Process2 = (IsWow64Process2_t)GetProcAddress(Kernel32, "IsWow64Process2")) == NULL ||
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!IsWow64Process2(GetCurrentProcess(), &ProcessMachine, &NativeMachine))
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{
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BOOL IsWoW64;
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NativeMachine =
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IsWow64Process(GetCurrentProcess(), &IsWoW64) && IsWoW64 ? IMAGE_FILE_MACHINE_AMD64 : IMAGE_FILE_PROCESS;
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}
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}
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static BOOL
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CheckReboot(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData)
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{
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SP_DEVINSTALL_PARAMS_W DevInstallParams = { .cbSize = sizeof(SP_DEVINSTALL_PARAMS_W) };
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if (!SetupDiGetDeviceInstallParamsW(DevInfo, DevInfoData, &DevInstallParams))
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{
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LOG_LAST_ERROR(L"Retrieving device installation parameters failed");
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return FALSE;
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}
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SetLastError(ERROR_SUCCESS);
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return (DevInstallParams.Flags & (DI_NEEDREBOOT | DI_NEEDRESTART)) != 0;
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}
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static _Return_type_success_(return != FALSE) BOOL
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SetQuietInstall(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData)
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{
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SP_DEVINSTALL_PARAMS_W DevInstallParams = { .cbSize = sizeof(SP_DEVINSTALL_PARAMS_W) };
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if (!SetupDiGetDeviceInstallParamsW(DevInfo, DevInfoData, &DevInstallParams))
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{
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LOG_LAST_ERROR(L"Retrieving device installation parameters failed");
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return FALSE;
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}
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DevInstallParams.Flags |= DI_QUIETINSTALL;
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if (!SetupDiSetDeviceInstallParamsW(DevInfo, DevInfoData, &DevInstallParams))
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{
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LOG_LAST_ERROR(L"Setting device installation parameters failed");
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return FALSE;
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}
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return TRUE;
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}
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static _Return_type_success_(return != FALSE) BOOL
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GetNetCfgInstanceId(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData, _Out_ GUID *CfgInstanceID)
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{
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HKEY Key = SetupDiOpenDevRegKey(DevInfo, DevInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DRV, KEY_QUERY_VALUE);
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if (Key == INVALID_HANDLE_VALUE)
|
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{
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LOG_LAST_ERROR(L"Opening device registry key failed");
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return FALSE;
|
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}
|
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DWORD LastError = ERROR_SUCCESS;
|
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WCHAR *ValueStr = RegistryQueryString(Key, L"NetCfgInstanceId", TRUE);
|
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if (!ValueStr)
|
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{
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LastError = LOG(WINTUN_LOG_ERR, L"Failed to get NetCfgInstanceId");
|
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goto cleanupKey;
|
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}
|
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if (FAILED(CLSIDFromString(ValueStr, CfgInstanceID)))
|
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{
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LOG(WINTUN_LOG_ERR, L"NetCfgInstanceId is not a GUID");
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LastError = ERROR_INVALID_DATA;
|
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}
|
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Free(ValueStr);
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cleanupKey:
|
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RegCloseKey(Key);
|
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return RET_ERROR(TRUE, LastError);
|
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}
|
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|
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static _Return_type_success_(return != FALSE) BOOL
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GetDevInfoData(_In_ const GUID *CfgInstanceID, _Out_ HDEVINFO *DevInfo, _Out_ SP_DEVINFO_DATA *DevInfoData)
|
|
{
|
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*DevInfo = SetupDiGetClassDevsExW(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
|
|
if (!*DevInfo)
|
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{
|
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LOG_LAST_ERROR(L"Failed to get present adapters");
|
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return FALSE;
|
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}
|
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for (DWORD EnumIndex = 0;; ++EnumIndex)
|
|
{
|
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DevInfoData->cbSize = sizeof(SP_DEVINFO_DATA);
|
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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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}
|
|
GUID CfgInstanceID2;
|
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if (GetNetCfgInstanceId(*DevInfo, DevInfoData, &CfgInstanceID2) &&
|
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!memcmp(CfgInstanceID, &CfgInstanceID2, sizeof(GUID)))
|
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return TRUE;
|
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}
|
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SetupDiDestroyDeviceInfoList(*DevInfo);
|
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SetLastError(ERROR_FILE_NOT_FOUND);
|
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return FALSE;
|
|
}
|
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|
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static void
|
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RemoveNumberedSuffix(_Inout_z_ WCHAR *Name)
|
|
{
|
|
for (size_t i = wcslen(Name); i--;)
|
|
{
|
|
if ((Name[i] < L'0' || Name[i] > L'9') && !iswspace(Name[i]))
|
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return;
|
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Name[i] = 0;
|
|
}
|
|
}
|
|
|
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static _Return_type_success_(return != FALSE) BOOL
|
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GetPoolDeviceTypeName(_In_z_ const WCHAR *Pool, _Out_cap_c_(MAX_POOL_DEVICE_TYPE) WCHAR *Name)
|
|
{
|
|
if (_snwprintf_s(Name, MAX_POOL_DEVICE_TYPE, _TRUNCATE, L"%s Tunnel", Pool) == -1)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Pool name too long");
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
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static BOOL
|
|
IsPoolMember(_In_z_ const WCHAR *Pool, _In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData)
|
|
{
|
|
WCHAR *DeviceDesc = GetDeviceRegistryString(DevInfo, DevInfoData, SPDRP_DEVICEDESC);
|
|
WCHAR *FriendlyName = GetDeviceRegistryString(DevInfo, DevInfoData, SPDRP_FRIENDLYNAME);
|
|
DWORD LastError = ERROR_SUCCESS;
|
|
BOOL Ret = FALSE;
|
|
WCHAR PoolDeviceTypeName[MAX_POOL_DEVICE_TYPE];
|
|
if (!GetPoolDeviceTypeName(Pool, PoolDeviceTypeName))
|
|
{
|
|
LastError = GetLastError();
|
|
goto cleanupNames;
|
|
}
|
|
Ret = (FriendlyName && !_wcsicmp(FriendlyName, PoolDeviceTypeName)) ||
|
|
(DeviceDesc && !_wcsicmp(DeviceDesc, PoolDeviceTypeName));
|
|
if (Ret)
|
|
goto cleanupNames;
|
|
if (FriendlyName)
|
|
RemoveNumberedSuffix(FriendlyName);
|
|
if (DeviceDesc)
|
|
RemoveNumberedSuffix(DeviceDesc);
|
|
Ret = (FriendlyName && !_wcsicmp(FriendlyName, PoolDeviceTypeName)) ||
|
|
(DeviceDesc && !_wcsicmp(DeviceDesc, PoolDeviceTypeName));
|
|
cleanupNames:
|
|
Free(FriendlyName);
|
|
Free(DeviceDesc);
|
|
SetLastError(LastError);
|
|
return Ret;
|
|
}
|
|
|
|
static _Return_type_success_(return != NULL) WINTUN_ADAPTER
|
|
*CreateAdapterData(_In_z_ const WCHAR *Pool, _In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA *DevInfoData)
|
|
{
|
|
/* 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)
|
|
{
|
|
LOG_LAST_ERROR(L"Opening device registry key failed");
|
|
return NULL;
|
|
}
|
|
|
|
DWORD LastError;
|
|
WINTUN_ADAPTER *Adapter = Alloc(sizeof(WINTUN_ADAPTER));
|
|
if (!Adapter)
|
|
{
|
|
LastError = GetLastError();
|
|
goto cleanupKey;
|
|
}
|
|
|
|
WCHAR *ValueStr = RegistryQueryString(Key, L"NetCfgInstanceId", TRUE);
|
|
if (!ValueStr)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to get NetCfgInstanceId");
|
|
goto cleanupAdapter;
|
|
}
|
|
if (FAILED(CLSIDFromString(ValueStr, &Adapter->CfgInstanceID)))
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"NetCfgInstanceId is not Adapter GUID");
|
|
Free(ValueStr);
|
|
LastError = ERROR_INVALID_DATA;
|
|
goto cleanupAdapter;
|
|
}
|
|
Free(ValueStr);
|
|
|
|
if (!RegistryQueryDWORD(Key, L"NetLuidIndex", &Adapter->LuidIndex, TRUE))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to get NetLuidIndex");
|
|
goto cleanupAdapter;
|
|
}
|
|
|
|
if (!RegistryQueryDWORD(Key, L"*IfType", &Adapter->IfType, TRUE))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to get *IfType");
|
|
goto cleanupAdapter;
|
|
}
|
|
|
|
DWORD Size;
|
|
if (!SetupDiGetDeviceInstanceIdW(
|
|
DevInfo, DevInfoData, Adapter->DevInstanceID, _countof(Adapter->DevInstanceID), &Size))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to get instance ID");
|
|
goto cleanupAdapter;
|
|
}
|
|
|
|
if (wcsncpy_s(Adapter->Pool, _countof(Adapter->Pool), Pool, _TRUNCATE) == STRUNCATE)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Pool name too long");
|
|
LastError = ERROR_INVALID_PARAMETER;
|
|
goto cleanupAdapter;
|
|
}
|
|
RegCloseKey(Key);
|
|
return Adapter;
|
|
|
|
cleanupAdapter:
|
|
Free(Adapter);
|
|
cleanupKey:
|
|
RegCloseKey(Key);
|
|
SetLastError(LastError);
|
|
return NULL;
|
|
}
|
|
|
|
static _Return_type_success_(return != FALSE) BOOL
|
|
GetDeviceRegPath(_In_ const WINTUN_ADAPTER *Adapter, _Out_cap_c_(MAX_REG_PATH) WCHAR *Path)
|
|
{
|
|
if (_snwprintf_s(
|
|
Path,
|
|
MAX_REG_PATH,
|
|
_TRUNCATE,
|
|
L"SYSTEM\\CurrentControlSet\\Enum\\%.*s",
|
|
MAX_INSTANCE_ID,
|
|
Adapter->DevInstanceID) == -1)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Registry path too long");
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
void WINAPI
|
|
WintunFreeAdapter(_In_ WINTUN_ADAPTER *Adapter)
|
|
{
|
|
Free(Adapter);
|
|
}
|
|
|
|
_Return_type_success_(return != NULL) WINTUN_ADAPTER *WINAPI
|
|
WintunOpenAdapter(_In_z_ const WCHAR *Pool, _In_z_ const WCHAR *Name)
|
|
{
|
|
if (!ElevateToSystem())
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to impersonate SYSTEM user");
|
|
return NULL;
|
|
}
|
|
DWORD LastError;
|
|
WINTUN_ADAPTER *Adapter = NULL;
|
|
HANDLE Mutex = NamespaceTakePoolMutex(Pool);
|
|
if (!Mutex)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to take pool mutex");
|
|
goto cleanupToken;
|
|
}
|
|
|
|
HDEVINFO DevInfo = SetupDiGetClassDevsExW(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
|
|
if (DevInfo == INVALID_HANDLE_VALUE)
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to get present adapters");
|
|
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))
|
|
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(Name, Name2))
|
|
{
|
|
RemoveNumberedSuffix(Name2);
|
|
if (_wcsicmp(Name, Name2))
|
|
continue;
|
|
}
|
|
|
|
/* Check the Hardware ID to make sure it's a real Wintun device. */
|
|
if (!IsOurAdapter(DevInfo, &DevInfoData))
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Foreign adapter with the same name exists");
|
|
LastError = ERROR_ALREADY_EXISTS;
|
|
goto cleanupDevInfo;
|
|
}
|
|
|
|
if (!IsPoolMember(Pool, DevInfo, &DevInfoData))
|
|
{
|
|
if ((LastError = GetLastError()) == ERROR_SUCCESS)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Wintun adapter with the same name exists in another pool");
|
|
LastError = ERROR_ALREADY_EXISTS;
|
|
goto cleanupDevInfo;
|
|
}
|
|
else
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to get pool membership");
|
|
goto cleanupDevInfo;
|
|
}
|
|
}
|
|
|
|
Adapter = CreateAdapterData(Pool, DevInfo, &DevInfoData);
|
|
LastError = Adapter ? ERROR_SUCCESS : LOG(WINTUN_LOG_ERR, L"Failed to create adapter data");
|
|
goto cleanupDevInfo;
|
|
}
|
|
LastError = ERROR_FILE_NOT_FOUND;
|
|
cleanupDevInfo:
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
cleanupMutex:
|
|
NamespaceReleaseMutex(Mutex);
|
|
cleanupToken:
|
|
RevertToSelf();
|
|
SetLastError(LastError);
|
|
return Adapter;
|
|
}
|
|
|
|
_Return_type_success_(return != FALSE) BOOL WINAPI
|
|
WintunGetAdapterName(_In_ const WINTUN_ADAPTER *Adapter, _Out_cap_c_(MAX_ADAPTER_NAME) WCHAR *Name)
|
|
{
|
|
DWORD LastError = NciGetConnectionName(&Adapter->CfgInstanceID, Name, MAX_ADAPTER_NAME * sizeof(WCHAR), NULL);
|
|
if (LastError != ERROR_SUCCESS)
|
|
{
|
|
SetLastError(LOG_ERROR(L"Failed to get name", LastError));
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static _Return_type_success_(return != FALSE) BOOL
|
|
ConvertInterfaceAliasToGuid(_In_z_ const WCHAR *Name, _Out_ GUID *Guid)
|
|
{
|
|
NET_LUID Luid;
|
|
DWORD LastError = ConvertInterfaceAliasToLuid(Name, &Luid);
|
|
if (LastError != NO_ERROR)
|
|
{
|
|
SetLastError(LOG_ERROR(L"Failed convert interface alias name to the locally unique identifier", LastError));
|
|
return FALSE;
|
|
}
|
|
LastError = ConvertInterfaceLuidToGuid(&Luid, Guid);
|
|
if (LastError != NO_ERROR)
|
|
{
|
|
SetLastError(LOG_ERROR(L"Failed convert interface locally to globally unique identifier", LastError));
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
_Return_type_success_(return != FALSE) BOOL WINAPI
|
|
WintunSetAdapterName(_In_ const WINTUN_ADAPTER *Adapter, _In_z_ const WCHAR *Name)
|
|
{
|
|
DWORD LastError;
|
|
const int MaxSuffix = 1000;
|
|
WCHAR AvailableName[MAX_ADAPTER_NAME];
|
|
if (wcsncpy_s(AvailableName, _countof(AvailableName), Name, _TRUNCATE) == STRUNCATE)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Adapter name too long");
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
for (int i = 0;; ++i)
|
|
{
|
|
LastError = NciSetConnectionName(&Adapter->CfgInstanceID, AvailableName);
|
|
if (LastError == ERROR_DUP_NAME)
|
|
{
|
|
GUID Guid2;
|
|
if (ConvertInterfaceAliasToGuid(AvailableName, &Guid2))
|
|
{
|
|
for (int j = 0; j < MaxSuffix; ++j)
|
|
{
|
|
WCHAR Proposal[MAX_ADAPTER_NAME];
|
|
if (_snwprintf_s(Proposal, _countof(Proposal), _TRUNCATE, L"%s %d", Name, j + 1) == -1)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Adapter name too long");
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
if (_wcsnicmp(Proposal, AvailableName, MAX_ADAPTER_NAME) == 0)
|
|
continue;
|
|
DWORD LastError2 = NciSetConnectionName(&Guid2, Proposal);
|
|
if (LastError2 == ERROR_DUP_NAME)
|
|
continue;
|
|
if (LastError2 == ERROR_SUCCESS)
|
|
{
|
|
LastError = NciSetConnectionName(&Adapter->CfgInstanceID, AvailableName);
|
|
if (LastError == ERROR_SUCCESS)
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (LastError == ERROR_SUCCESS)
|
|
break;
|
|
if (i >= MaxSuffix || LastError != ERROR_DUP_NAME)
|
|
{
|
|
SetLastError(LOG_ERROR(L"Setting adapter name failed", LastError));
|
|
return FALSE;
|
|
}
|
|
if (_snwprintf_s(AvailableName, _countof(AvailableName), _TRUNCATE, L"%s %d", Name, i + 1) == -1)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Adapter name too long");
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* TODO: This should use NetSetup2 so that it doesn't get unset. */
|
|
HKEY DeviceRegKey;
|
|
WCHAR DeviceRegPath[MAX_REG_PATH];
|
|
if (!GetDeviceRegPath(Adapter, DeviceRegPath))
|
|
return FALSE;
|
|
LastError = RegOpenKeyExW(HKEY_LOCAL_MACHINE, DeviceRegPath, 0, KEY_SET_VALUE, &DeviceRegKey);
|
|
if (LastError != ERROR_SUCCESS)
|
|
{
|
|
SetLastError(LOG_ERROR(L"Failed to open registry key", LastError));
|
|
return FALSE;
|
|
}
|
|
WCHAR PoolDeviceTypeName[MAX_POOL_DEVICE_TYPE];
|
|
if (!GetPoolDeviceTypeName(Adapter->Pool, PoolDeviceTypeName))
|
|
{
|
|
LastError = GetLastError();
|
|
goto cleanupDeviceRegKey;
|
|
}
|
|
LastError = RegSetKeyValueW(
|
|
DeviceRegKey,
|
|
NULL,
|
|
L"FriendlyName",
|
|
REG_SZ,
|
|
PoolDeviceTypeName,
|
|
(DWORD)((wcslen(PoolDeviceTypeName) + 1) * sizeof(WCHAR)));
|
|
if (LastError != ERROR_SUCCESS)
|
|
LOG_ERROR(L"Failed to set FriendlyName", LastError);
|
|
cleanupDeviceRegKey:
|
|
RegCloseKey(DeviceRegKey);
|
|
return RET_ERROR(TRUE, LastError);
|
|
}
|
|
|
|
void WINAPI
|
|
WintunGetAdapterLUID(_In_ const WINTUN_ADAPTER *Adapter, _Out_ NET_LUID *Luid)
|
|
{
|
|
Luid->Info.Reserved = 0;
|
|
Luid->Info.NetLuidIndex = Adapter->LuidIndex;
|
|
Luid->Info.IfType = Adapter->IfType;
|
|
}
|
|
|
|
_Return_type_success_(return != INVALID_HANDLE_VALUE) HANDLE WINAPI
|
|
AdapterOpenDeviceObject(_In_ const WINTUN_ADAPTER *Adapter)
|
|
{
|
|
return OpenDeviceObject(Adapter->DevInstanceID);
|
|
}
|
|
|
|
static BOOL
|
|
HaveWHQL(void)
|
|
{
|
|
if (HAVE_WHQL)
|
|
{
|
|
DWORD MajorVersion;
|
|
RtlGetNtVersionNumbers(&MajorVersion, NULL, NULL);
|
|
return MajorVersion >= 10;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static _Return_type_success_(return != FALSE) BOOL InstallCertificate(_In_z_ const WCHAR *SignedResource)
|
|
{
|
|
LOG(WINTUN_LOG_INFO, L"Trusting code signing certificate");
|
|
DWORD SizeResource;
|
|
const void *LockedResource = ResourceGetAddress(SignedResource, &SizeResource);
|
|
if (!LockedResource)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to locate resource");
|
|
return FALSE;
|
|
}
|
|
const CERT_BLOB CertBlob = { .cbData = SizeResource, .pbData = (BYTE *)LockedResource };
|
|
HCERTSTORE QueriedStore;
|
|
if (!CryptQueryObject(
|
|
CERT_QUERY_OBJECT_BLOB,
|
|
&CertBlob,
|
|
CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED_EMBED,
|
|
CERT_QUERY_FORMAT_FLAG_ALL,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
&QueriedStore,
|
|
0,
|
|
NULL))
|
|
{
|
|
LOG_LAST_ERROR(L"Failed to find certificate");
|
|
return FALSE;
|
|
}
|
|
DWORD LastError = ERROR_SUCCESS;
|
|
HCERTSTORE TrustedStore =
|
|
CertOpenStore(CERT_STORE_PROV_SYSTEM, 0, 0, CERT_SYSTEM_STORE_LOCAL_MACHINE, L"TrustedPublisher");
|
|
if (!TrustedStore)
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to open store");
|
|
goto cleanupQueriedStore;
|
|
}
|
|
LPSTR CodeSigningOid[] = { szOID_PKIX_KP_CODE_SIGNING };
|
|
CERT_ENHKEY_USAGE EnhancedUsage = { .cUsageIdentifier = 1, .rgpszUsageIdentifier = CodeSigningOid };
|
|
for (const CERT_CONTEXT *CertContext = NULL; (CertContext = CertFindCertificateInStore(
|
|
QueriedStore,
|
|
X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
|
|
CERT_FIND_EXT_ONLY_ENHKEY_USAGE_FLAG,
|
|
CERT_FIND_ENHKEY_USAGE,
|
|
&EnhancedUsage,
|
|
CertContext)) != NULL;)
|
|
{
|
|
CERT_EXTENSION *Ext = CertFindExtension(
|
|
szOID_BASIC_CONSTRAINTS2, CertContext->pCertInfo->cExtension, CertContext->pCertInfo->rgExtension);
|
|
CERT_BASIC_CONSTRAINTS2_INFO Constraints;
|
|
DWORD Size = sizeof(Constraints);
|
|
if (Ext &&
|
|
CryptDecodeObjectEx(
|
|
X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
|
|
szOID_BASIC_CONSTRAINTS2,
|
|
Ext->Value.pbData,
|
|
Ext->Value.cbData,
|
|
0,
|
|
NULL,
|
|
&Constraints,
|
|
&Size) &&
|
|
!Constraints.fCA)
|
|
if (!CertAddCertificateContextToStore(TrustedStore, CertContext, CERT_STORE_ADD_REPLACE_EXISTING, NULL))
|
|
{
|
|
LOG_LAST_ERROR(L"Failed to add certificate to store");
|
|
LastError = LastError != ERROR_SUCCESS ? LastError : GetLastError();
|
|
}
|
|
}
|
|
CertCloseStore(TrustedStore, 0);
|
|
cleanupQueriedStore:
|
|
CertCloseStore(QueriedStore, 0);
|
|
return RET_ERROR(TRUE, LastError);
|
|
}
|
|
|
|
static BOOL
|
|
IsOurDrvInfoDetail(_In_ const SP_DRVINFO_DETAIL_DATA_W *DrvInfoDetailData)
|
|
{
|
|
if (DrvInfoDetailData->CompatIDsOffset > 1 && !_wcsicmp(DrvInfoDetailData->HardwareID, WINTUN_HWID))
|
|
return TRUE;
|
|
if (DrvInfoDetailData->CompatIDsLength &&
|
|
IsOurHardwareID(DrvInfoDetailData->HardwareID + DrvInfoDetailData->CompatIDsOffset))
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
static BOOL
|
|
IsNewer(
|
|
_In_ const FILETIME *DriverDate1,
|
|
_In_ DWORDLONG DriverVersion1,
|
|
_In_ const FILETIME *DriverDate2,
|
|
_In_ DWORDLONG DriverVersion2)
|
|
{
|
|
if (DriverDate1->dwHighDateTime > DriverDate2->dwHighDateTime)
|
|
return TRUE;
|
|
if (DriverDate1->dwHighDateTime < DriverDate2->dwHighDateTime)
|
|
return FALSE;
|
|
|
|
if (DriverDate1->dwLowDateTime > DriverDate2->dwLowDateTime)
|
|
return TRUE;
|
|
if (DriverDate1->dwLowDateTime < DriverDate2->dwLowDateTime)
|
|
return FALSE;
|
|
|
|
if (DriverVersion1 > DriverVersion2)
|
|
return TRUE;
|
|
if (DriverVersion1 < DriverVersion2)
|
|
return FALSE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static _Return_type_success_(return != FALSE) BOOL
|
|
GetTcpipAdapterRegPath(_In_ const WINTUN_ADAPTER *Adapter, _Out_cap_c_(MAX_REG_PATH) WCHAR *Path)
|
|
{
|
|
WCHAR Guid[MAX_GUID_STRING_LEN];
|
|
if (_snwprintf_s(
|
|
Path,
|
|
MAX_REG_PATH,
|
|
_TRUNCATE,
|
|
L"SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Adapters\\%.*s",
|
|
StringFromGUID2(&Adapter->CfgInstanceID, Guid, _countof(Guid)),
|
|
Guid) == -1)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Registry path too long");
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static _Return_type_success_(return != FALSE) BOOL
|
|
GetTcpipInterfaceRegPath(_In_ const WINTUN_ADAPTER *Adapter, _Out_cap_c_(MAX_REG_PATH) WCHAR *Path)
|
|
{
|
|
HKEY TcpipAdapterRegKey;
|
|
WCHAR TcpipAdapterRegPath[MAX_REG_PATH];
|
|
if (!GetTcpipAdapterRegPath(Adapter, TcpipAdapterRegPath))
|
|
return FALSE;
|
|
DWORD LastError = RegOpenKeyExW(HKEY_LOCAL_MACHINE, TcpipAdapterRegPath, 0, KEY_QUERY_VALUE, &TcpipAdapterRegKey);
|
|
if (LastError != ERROR_SUCCESS)
|
|
{
|
|
SetLastError(LOG_ERROR(L"Failed to open registry key", LastError));
|
|
return FALSE;
|
|
}
|
|
WCHAR *Paths = RegistryQueryString(TcpipAdapterRegKey, L"IpConfig", TRUE);
|
|
if (!Paths)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to get IpConfig");
|
|
goto cleanupTcpipAdapterRegKey;
|
|
}
|
|
if (!Paths[0])
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"IpConfig is empty");
|
|
LastError = ERROR_INVALID_DATA;
|
|
goto cleanupPaths;
|
|
}
|
|
if (_snwprintf_s(Path, MAX_REG_PATH, _TRUNCATE, L"SYSTEM\\CurrentControlSet\\Services\\%s", Paths) == -1)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Registry path too long");
|
|
LastError = ERROR_INVALID_PARAMETER;
|
|
goto cleanupPaths;
|
|
}
|
|
cleanupPaths:
|
|
Free(Paths);
|
|
cleanupTcpipAdapterRegKey:
|
|
RegCloseKey(TcpipAdapterRegKey);
|
|
return RET_ERROR(TRUE, LastError);
|
|
}
|
|
|
|
static _Return_type_success_(return != 0) DWORD VersionOfFile(_In_z_ const WCHAR *Filename)
|
|
{
|
|
DWORD Zero;
|
|
DWORD Len = GetFileVersionInfoSizeW(Filename, &Zero);
|
|
if (!Len)
|
|
{
|
|
LOG_LAST_ERROR(L"Failed to query version info size");
|
|
return 0;
|
|
}
|
|
VOID *VersionInfo = Alloc(Len);
|
|
if (!VersionInfo)
|
|
return 0;
|
|
DWORD LastError = ERROR_SUCCESS, Version = 0;
|
|
VS_FIXEDFILEINFO *FixedInfo;
|
|
UINT FixedInfoLen = sizeof(*FixedInfo);
|
|
if (!GetFileVersionInfoW(Filename, 0, Len, VersionInfo))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to get version info");
|
|
goto out;
|
|
}
|
|
if (!VerQueryValueW(VersionInfo, L"\\", &FixedInfo, &FixedInfoLen))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to get version info root");
|
|
goto out;
|
|
}
|
|
Version = FixedInfo->dwFileVersionMS;
|
|
if (!Version)
|
|
{
|
|
LOG(WINTUN_LOG_WARN, L"Determined version of file, but was v0.0, so returning failure");
|
|
LastError = ERROR_VERSION_PARSE_ERROR;
|
|
}
|
|
out:
|
|
Free(VersionInfo);
|
|
return RET_ERROR(Version, LastError);
|
|
}
|
|
|
|
static _Return_type_success_(return != FALSE) BOOL
|
|
CreateTemporaryDirectory(_Out_cap_c_(MAX_PATH) WCHAR *RandomTempSubDirectory)
|
|
{
|
|
WCHAR WindowsDirectory[MAX_PATH];
|
|
if (!GetWindowsDirectoryW(WindowsDirectory, _countof(WindowsDirectory)))
|
|
{
|
|
LOG_LAST_ERROR(L"Failed to get Windows folder");
|
|
return FALSE;
|
|
}
|
|
WCHAR WindowsTempDirectory[MAX_PATH];
|
|
if (!PathCombineW(WindowsTempDirectory, WindowsDirectory, L"Temp"))
|
|
{
|
|
SetLastError(ERROR_BUFFER_OVERFLOW);
|
|
return FALSE;
|
|
}
|
|
UCHAR RandomBytes[32] = { 0 };
|
|
#pragma warning(suppress : 6387)
|
|
if (!RtlGenRandom(RandomBytes, sizeof(RandomBytes)))
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to generate random");
|
|
SetLastError(ERROR_GEN_FAILURE);
|
|
return FALSE;
|
|
}
|
|
WCHAR RandomSubDirectory[sizeof(RandomBytes) * 2 + 1];
|
|
for (int i = 0; i < sizeof(RandomBytes); ++i)
|
|
swprintf_s(&RandomSubDirectory[i * 2], 3, L"%02x", RandomBytes[i]);
|
|
if (!PathCombineW(RandomTempSubDirectory, WindowsTempDirectory, RandomSubDirectory))
|
|
{
|
|
SetLastError(ERROR_BUFFER_OVERFLOW);
|
|
return FALSE;
|
|
}
|
|
if (!CreateDirectoryW(RandomTempSubDirectory, &SecurityAttributes))
|
|
{
|
|
LOG_LAST_ERROR(L"Failed to create temporary folder");
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static DWORD WINAPI
|
|
MaybeGetRunningDriverVersion(BOOL ReturnOneIfRunningInsteadOfVersion)
|
|
{
|
|
PRTL_PROCESS_MODULES Modules;
|
|
ULONG BufferSize = 128 * 1024;
|
|
for (;;)
|
|
{
|
|
Modules = Alloc(BufferSize);
|
|
if (!Modules)
|
|
return 0;
|
|
NTSTATUS Status = NtQuerySystemInformation(SystemModuleInformation, Modules, BufferSize, &BufferSize);
|
|
if (NT_SUCCESS(Status))
|
|
break;
|
|
Free(Modules);
|
|
if (Status == STATUS_INFO_LENGTH_MISMATCH)
|
|
continue;
|
|
LOG(WINTUN_LOG_ERR, L"Failed to enumerate drivers");
|
|
SetLastError(RtlNtStatusToDosError(Status));
|
|
return 0;
|
|
}
|
|
DWORD LastError = ERROR_SUCCESS, Version = 0;
|
|
for (ULONG i = Modules->NumberOfModules; i-- > 0;)
|
|
{
|
|
const char *NtPath = (const char *)Modules->Modules[i].FullPathName;
|
|
if (!_stricmp(&NtPath[Modules->Modules[i].OffsetToFileName], "wintun.sys"))
|
|
{
|
|
if (ReturnOneIfRunningInsteadOfVersion)
|
|
{
|
|
Version = 1;
|
|
goto cleanupModules;
|
|
}
|
|
WCHAR FilePath[MAX_PATH * 3 + 15];
|
|
if (_snwprintf_s(FilePath, _countof(FilePath), _TRUNCATE, L"\\\\?\\GLOBALROOT%S", NtPath) == -1)
|
|
continue;
|
|
Version = VersionOfFile(FilePath);
|
|
if (!Version)
|
|
LastError = GetLastError();
|
|
goto cleanupModules;
|
|
}
|
|
}
|
|
LastError = ERROR_FILE_NOT_FOUND;
|
|
cleanupModules:
|
|
Free(Modules);
|
|
return RET_ERROR(Version, LastError);
|
|
}
|
|
|
|
DWORD WINAPI
|
|
WintunGetRunningDriverVersion(void)
|
|
{
|
|
return MaybeGetRunningDriverVersion(FALSE);
|
|
}
|
|
|
|
static BOOL
|
|
EnsureWintunUnloaded(void)
|
|
{
|
|
BOOL Loaded;
|
|
for (int i = 0; (Loaded = MaybeGetRunningDriverVersion(TRUE) != 0) != FALSE && i < 300; ++i)
|
|
Sleep(50);
|
|
return !Loaded;
|
|
}
|
|
|
|
static _Return_type_success_(return != FALSE) BOOL SelectDriver(
|
|
_In_ HDEVINFO DevInfo,
|
|
_In_opt_ SP_DEVINFO_DATA *DevInfoData,
|
|
_Inout_ SP_DEVINSTALL_PARAMS_W *DevInstallParams)
|
|
{
|
|
static const FILETIME OurDriverDate = WINTUN_INF_FILETIME;
|
|
static const DWORDLONG OurDriverVersion = WINTUN_INF_VERSION;
|
|
HANDLE DriverInstallationLock = NamespaceTakeDriverInstallationMutex();
|
|
if (!DriverInstallationLock)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to take driver installation mutex");
|
|
return FALSE;
|
|
}
|
|
DWORD LastError;
|
|
if (!SetupDiBuildDriverInfoList(DevInfo, DevInfoData, SPDIT_COMPATDRIVER))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed building driver info list");
|
|
goto cleanupDriverInstallationLock;
|
|
}
|
|
BOOL DestroyDriverInfoListOnCleanup = TRUE;
|
|
FILETIME DriverDate = { 0 };
|
|
DWORDLONG DriverVersion = 0;
|
|
HDEVINFO DevInfoExistingAdapters = INVALID_HANDLE_VALUE;
|
|
SP_DEVINFO_DATA_LIST *ExistingAdapters = NULL;
|
|
for (DWORD EnumIndex = 0;; ++EnumIndex)
|
|
{
|
|
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;
|
|
}
|
|
SP_DRVINFO_DETAIL_DATA_W *DrvInfoDetailData = GetAdapterDrvInfoDetail(DevInfo, DevInfoData, &DrvInfoData);
|
|
if (!DrvInfoDetailData)
|
|
{
|
|
LOG(WINTUN_LOG_WARN, L"Failed getting driver info detail");
|
|
continue;
|
|
}
|
|
if (!IsOurDrvInfoDetail(DrvInfoDetailData))
|
|
goto next;
|
|
if (IsNewer(&OurDriverDate, OurDriverVersion, &DrvInfoData.DriverDate, DrvInfoData.DriverVersion))
|
|
{
|
|
if (DevInfoExistingAdapters == INVALID_HANDLE_VALUE)
|
|
{
|
|
DevInfoExistingAdapters =
|
|
SetupDiGetClassDevsExW(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
|
|
if (DevInfoExistingAdapters == INVALID_HANDLE_VALUE)
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to get present adapters");
|
|
Free(DrvInfoDetailData);
|
|
goto cleanupExistingAdapters;
|
|
}
|
|
_Analysis_assume_(DevInfoExistingAdapters != NULL);
|
|
DisableAllOurAdapters(DevInfoExistingAdapters, &ExistingAdapters);
|
|
LOG(WINTUN_LOG_INFO, L"Waiting for existing driver to unload from kernel");
|
|
if (!EnsureWintunUnloaded())
|
|
LOG(WINTUN_LOG_WARN,
|
|
L"Failed to unload existing driver, which means a reboot will likely be required");
|
|
}
|
|
LOG(WINTUN_LOG_INFO, L"Removing existing driver");
|
|
if (!SetupUninstallOEMInfW(PathFindFileNameW(DrvInfoDetailData->InfFileName), SUOI_FORCEDELETE, NULL))
|
|
LOG_LAST_ERROR(L"Unable to remove existing driver");
|
|
goto next;
|
|
}
|
|
if (!IsNewer(&DrvInfoData.DriverDate, DrvInfoData.DriverVersion, &DriverDate, DriverVersion))
|
|
goto next;
|
|
if (!SetupDiSetSelectedDriverW(DevInfo, DevInfoData, &DrvInfoData))
|
|
{
|
|
LOG_LAST_ERROR(L"Failed to select driver");
|
|
goto next;
|
|
}
|
|
DriverDate = DrvInfoData.DriverDate;
|
|
DriverVersion = DrvInfoData.DriverVersion;
|
|
next:
|
|
Free(DrvInfoDetailData);
|
|
}
|
|
|
|
if (DriverVersion)
|
|
{
|
|
LastError = ERROR_SUCCESS;
|
|
DestroyDriverInfoListOnCleanup = FALSE;
|
|
goto cleanupExistingAdapters;
|
|
}
|
|
|
|
WCHAR RandomTempSubDirectory[MAX_PATH];
|
|
if (!CreateTemporaryDirectory(RandomTempSubDirectory))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to create temporary folder");
|
|
goto cleanupExistingAdapters;
|
|
}
|
|
|
|
WCHAR CatPath[MAX_PATH] = { 0 };
|
|
WCHAR SysPath[MAX_PATH] = { 0 };
|
|
WCHAR InfPath[MAX_PATH] = { 0 };
|
|
if (!PathCombineW(CatPath, RandomTempSubDirectory, L"wintun.cat") ||
|
|
!PathCombineW(SysPath, RandomTempSubDirectory, L"wintun.sys") ||
|
|
!PathCombineW(InfPath, RandomTempSubDirectory, L"wintun.inf"))
|
|
{
|
|
LastError = ERROR_BUFFER_OVERFLOW;
|
|
goto cleanupDirectory;
|
|
}
|
|
|
|
BOOL UseWHQL = HaveWHQL();
|
|
if (!UseWHQL && !InstallCertificate(L"wintun.cat"))
|
|
LOG(WINTUN_LOG_WARN, L"Failed to install code signing certificate");
|
|
|
|
LOG(WINTUN_LOG_INFO, L"Extracting driver");
|
|
if (!ResourceCopyToFile(CatPath, UseWHQL ? L"wintun-whql.cat" : L"wintun.cat") ||
|
|
!ResourceCopyToFile(SysPath, UseWHQL ? L"wintun-whql.sys" : L"wintun.sys") ||
|
|
!ResourceCopyToFile(InfPath, UseWHQL ? L"wintun-whql.inf" : L"wintun.inf"))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to extract driver");
|
|
goto cleanupDelete;
|
|
}
|
|
LOG(WINTUN_LOG_INFO, L"Installing driver");
|
|
WCHAR InfStorePath[MAX_PATH];
|
|
if (!SetupCopyOEMInfW(InfPath, NULL, SPOST_NONE, 0, InfStorePath, MAX_PATH, NULL, NULL))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Could not install driver to store");
|
|
goto cleanupDelete;
|
|
}
|
|
_Analysis_assume_nullterminated_(InfStorePath);
|
|
|
|
SetupDiDestroyDriverInfoList(DevInfo, DevInfoData, SPDIT_COMPATDRIVER);
|
|
DestroyDriverInfoListOnCleanup = FALSE;
|
|
DevInstallParams->Flags |= DI_ENUMSINGLEINF;
|
|
if (wcsncpy_s(DevInstallParams->DriverPath, _countof(DevInstallParams->DriverPath), InfStorePath, _TRUNCATE) ==
|
|
STRUNCATE)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Inf path too long");
|
|
LastError = ERROR_INVALID_PARAMETER;
|
|
goto cleanupDelete;
|
|
}
|
|
if (!SetupDiSetDeviceInstallParamsW(DevInfo, DevInfoData, DevInstallParams))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Setting device installation parameters failed");
|
|
goto cleanupDelete;
|
|
}
|
|
if (!SetupDiBuildDriverInfoList(DevInfo, DevInfoData, SPDIT_COMPATDRIVER))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed rebuilding driver info list");
|
|
goto cleanupDelete;
|
|
}
|
|
DestroyDriverInfoListOnCleanup = TRUE;
|
|
SP_DRVINFO_DATA_W DrvInfoData = { .cbSize = sizeof(SP_DRVINFO_DATA_W) };
|
|
if (!SetupDiEnumDriverInfoW(DevInfo, DevInfoData, SPDIT_COMPATDRIVER, 0, &DrvInfoData))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to get driver");
|
|
goto cleanupDelete;
|
|
}
|
|
if (!SetupDiSetSelectedDriverW(DevInfo, DevInfoData, &DrvInfoData))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to set driver");
|
|
goto cleanupDelete;
|
|
}
|
|
LastError = ERROR_SUCCESS;
|
|
DestroyDriverInfoListOnCleanup = FALSE;
|
|
|
|
cleanupDelete:
|
|
DeleteFileW(CatPath);
|
|
DeleteFileW(SysPath);
|
|
DeleteFileW(InfPath);
|
|
cleanupDirectory:
|
|
RemoveDirectoryW(RandomTempSubDirectory);
|
|
cleanupExistingAdapters:
|
|
if (ExistingAdapters)
|
|
{
|
|
EnableAllOurAdapters(DevInfoExistingAdapters, ExistingAdapters);
|
|
while (ExistingAdapters)
|
|
{
|
|
SP_DEVINFO_DATA_LIST *Next = ExistingAdapters->Next;
|
|
Free(ExistingAdapters);
|
|
ExistingAdapters = Next;
|
|
}
|
|
}
|
|
if (DevInfoExistingAdapters != INVALID_HANDLE_VALUE)
|
|
SetupDiDestroyDeviceInfoList(DevInfoExistingAdapters);
|
|
if (DestroyDriverInfoListOnCleanup)
|
|
SetupDiDestroyDriverInfoList(DevInfo, DevInfoData, SPDIT_COMPATDRIVER);
|
|
cleanupDriverInstallationLock:
|
|
NamespaceReleaseMutex(DriverInstallationLock);
|
|
return RET_ERROR(TRUE, LastError);
|
|
}
|
|
|
|
static _Return_type_success_(return != NULL) WINTUN_ADAPTER *CreateAdapter(
|
|
_In_z_ const WCHAR *Pool,
|
|
_In_z_ const WCHAR *Name,
|
|
_In_opt_ const GUID *RequestedGUID,
|
|
_Inout_ BOOL *RebootRequired)
|
|
{
|
|
LOG(WINTUN_LOG_INFO, L"Creating adapter");
|
|
|
|
HDEVINFO DevInfo = SetupDiCreateDeviceInfoListExW(&GUID_DEVCLASS_NET, NULL, NULL, NULL);
|
|
if (DevInfo == INVALID_HANDLE_VALUE)
|
|
{
|
|
LOG_LAST_ERROR(L"Creating empty device information set failed");
|
|
return NULL;
|
|
}
|
|
DWORD LastError;
|
|
WINTUN_ADAPTER *Adapter = NULL;
|
|
WCHAR ClassName[MAX_CLASS_NAME_LEN];
|
|
if (!SetupDiClassNameFromGuidExW(&GUID_DEVCLASS_NET, ClassName, _countof(ClassName), NULL, NULL, NULL))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Retrieving class name associated with class GUID failed");
|
|
goto cleanupDevInfo;
|
|
}
|
|
|
|
WCHAR PoolDeviceTypeName[MAX_POOL_DEVICE_TYPE];
|
|
if (!GetPoolDeviceTypeName(Pool, PoolDeviceTypeName))
|
|
{
|
|
LastError = GetLastError();
|
|
goto cleanupDevInfo;
|
|
}
|
|
SP_DEVINFO_DATA DevInfoData = { .cbSize = sizeof(SP_DEVINFO_DATA) };
|
|
if (!SetupDiCreateDeviceInfoW(
|
|
DevInfo, ClassName, &GUID_DEVCLASS_NET, PoolDeviceTypeName, NULL, DICD_GENERATE_ID, &DevInfoData))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Creating new device information element failed");
|
|
goto cleanupDevInfo;
|
|
}
|
|
SP_DEVINSTALL_PARAMS_W DevInstallParams = { .cbSize = sizeof(SP_DEVINSTALL_PARAMS_W) };
|
|
if (!SetupDiGetDeviceInstallParamsW(DevInfo, &DevInfoData, &DevInstallParams))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Retrieving device installation parameters failed");
|
|
goto cleanupDevInfo;
|
|
}
|
|
DevInstallParams.Flags |= DI_QUIETINSTALL;
|
|
if (!SetupDiSetDeviceInstallParamsW(DevInfo, &DevInfoData, &DevInstallParams))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Setting device installation parameters failed");
|
|
goto cleanupDevInfo;
|
|
}
|
|
if (!SetupDiSetSelectedDevice(DevInfo, &DevInfoData))
|
|
{
|
|
LastError = 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)))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed setting hardware ID");
|
|
goto cleanupDevInfo;
|
|
}
|
|
|
|
if (!SelectDriver(DevInfo, &DevInfoData, &DevInstallParams))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to select driver");
|
|
goto cleanupDevInfo;
|
|
}
|
|
|
|
HANDLE Mutex = NamespaceTakePoolMutex(Pool);
|
|
if (!Mutex)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to take pool mutex");
|
|
goto cleanupDriverInfoList;
|
|
}
|
|
|
|
if (!SetupDiCallClassInstaller(DIF_REGISTERDEVICE, DevInfo, &DevInfoData))
|
|
{
|
|
LastError = 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)
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to open device-specific registry key");
|
|
goto cleanupDevice;
|
|
}
|
|
if (RequestedGUID)
|
|
{
|
|
WCHAR RequestedGUIDStr[MAX_GUID_STRING_LEN];
|
|
LastError = RegSetValueExW(
|
|
NetDevRegKey,
|
|
L"NetSetupAnticipatedInstanceId",
|
|
0,
|
|
REG_SZ,
|
|
(const BYTE *)RequestedGUIDStr,
|
|
StringFromGUID2(RequestedGUID, RequestedGUIDStr, _countof(RequestedGUIDStr)) * sizeof(WCHAR));
|
|
if (LastError != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to set NetSetupAnticipatedInstanceId", LastError);
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
}
|
|
|
|
if (!SetupDiCallClassInstaller(DIF_INSTALLINTERFACES, DevInfo, &DevInfoData))
|
|
LOG_LAST_ERROR(L"Installing interfaces failed");
|
|
|
|
if (!SetupDiCallClassInstaller(DIF_INSTALLDEVICE, DevInfo, &DevInfoData))
|
|
{
|
|
LastError = 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))))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to set adapter 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 = RegistryQueryStringWait(NetDevRegKey, L"NetCfgInstanceId", WAIT_FOR_REGISTRY_TIMEOUT);
|
|
if (!DummyStr)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to get NetCfgInstanceId");
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
Free(DummyStr);
|
|
DWORD DummyDWORD;
|
|
if (!RegistryQueryDWORDWait(NetDevRegKey, L"NetLuidIndex", WAIT_FOR_REGISTRY_TIMEOUT, &DummyDWORD))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to get NetLuidIndex");
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
if (!RegistryQueryDWORDWait(NetDevRegKey, L"*IfType", WAIT_FOR_REGISTRY_TIMEOUT, &DummyDWORD))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to get *IfType");
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
|
|
Adapter = CreateAdapterData(Pool, DevInfo, &DevInfoData);
|
|
if (!Adapter)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to create adapter data");
|
|
goto cleanupNetDevRegKey;
|
|
}
|
|
|
|
HKEY TcpipAdapterRegKey;
|
|
WCHAR TcpipAdapterRegPath[MAX_REG_PATH];
|
|
if (!GetTcpipAdapterRegPath(Adapter, TcpipAdapterRegPath))
|
|
{
|
|
LastError = GetLastError();
|
|
goto cleanupAdapter;
|
|
}
|
|
TcpipAdapterRegKey = RegistryOpenKeyWait(
|
|
HKEY_LOCAL_MACHINE, TcpipAdapterRegPath, KEY_QUERY_VALUE | KEY_NOTIFY, WAIT_FOR_REGISTRY_TIMEOUT);
|
|
if (!TcpipAdapterRegKey)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to open adapter-specific TCP/IP interface registry key");
|
|
goto cleanupAdapter;
|
|
}
|
|
DummyStr = RegistryQueryStringWait(TcpipAdapterRegKey, L"IpConfig", WAIT_FOR_REGISTRY_TIMEOUT);
|
|
if (!DummyStr)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to get IpConfig");
|
|
goto cleanupTcpipAdapterRegKey;
|
|
}
|
|
Free(DummyStr);
|
|
|
|
HKEY TcpipInterfaceRegKey;
|
|
WCHAR TcpipInterfaceRegPath[MAX_REG_PATH];
|
|
if (!GetTcpipInterfaceRegPath(Adapter, TcpipInterfaceRegPath))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to determine interface-specific TCP/IP network registry key path");
|
|
goto cleanupTcpipAdapterRegKey;
|
|
}
|
|
TcpipInterfaceRegKey = RegistryOpenKeyWait(
|
|
HKEY_LOCAL_MACHINE, TcpipInterfaceRegPath, KEY_QUERY_VALUE | KEY_SET_VALUE, WAIT_FOR_REGISTRY_TIMEOUT);
|
|
if (!TcpipInterfaceRegKey)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to open interface-specific TCP/IP network registry key");
|
|
goto cleanupTcpipAdapterRegKey;
|
|
}
|
|
|
|
static const DWORD EnableDeadGWDetect = 0;
|
|
LastError = RegSetKeyValueW(
|
|
TcpipInterfaceRegKey, NULL, L"EnableDeadGWDetect", REG_DWORD, &EnableDeadGWDetect, sizeof(EnableDeadGWDetect));
|
|
if (LastError != ERROR_SUCCESS)
|
|
{
|
|
LOG_ERROR(L"Failed to set EnableDeadGWDetect", LastError);
|
|
goto cleanupTcpipInterfaceRegKey;
|
|
}
|
|
|
|
if (!WintunSetAdapterName(Adapter, Name))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to set adapter name");
|
|
goto cleanupTcpipInterfaceRegKey;
|
|
}
|
|
|
|
DEVPROPTYPE PropertyType;
|
|
for (int Tries = 0; Tries < 1000; ++Tries)
|
|
{
|
|
NTSTATUS ProblemStatus;
|
|
if (SetupDiGetDevicePropertyW(
|
|
DevInfo,
|
|
&DevInfoData,
|
|
&DEVPKEY_Device_ProblemStatus,
|
|
&PropertyType,
|
|
(PBYTE)&ProblemStatus,
|
|
sizeof(ProblemStatus),
|
|
NULL,
|
|
0) &&
|
|
PropertyType == DEVPROP_TYPE_NTSTATUS)
|
|
{
|
|
LastError = RtlNtStatusToDosError(ProblemStatus);
|
|
_Analysis_assume_(LastError != ERROR_SUCCESS);
|
|
if (ProblemStatus != STATUS_PNP_DEVICE_CONFIGURATION_PENDING || Tries == 999)
|
|
{
|
|
LOG_ERROR(L"Failed to setup adapter", LastError);
|
|
goto cleanupTcpipInterfaceRegKey;
|
|
}
|
|
Sleep(10);
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
LastError = ERROR_SUCCESS;
|
|
|
|
cleanupTcpipInterfaceRegKey:
|
|
RegCloseKey(TcpipInterfaceRegKey);
|
|
cleanupTcpipAdapterRegKey:
|
|
RegCloseKey(TcpipAdapterRegKey);
|
|
cleanupAdapter:
|
|
if (LastError != ERROR_SUCCESS)
|
|
{
|
|
Free(Adapter);
|
|
Adapter = NULL;
|
|
}
|
|
cleanupNetDevRegKey:
|
|
RegCloseKey(NetDevRegKey);
|
|
cleanupDevice:
|
|
if (LastError != 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);
|
|
}
|
|
NamespaceReleaseMutex(Mutex);
|
|
cleanupDriverInfoList:
|
|
SetupDiDestroyDriverInfoList(DevInfo, &DevInfoData, SPDIT_COMPATDRIVER);
|
|
cleanupDevInfo:
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
return RET_ERROR(Adapter, LastError);
|
|
}
|
|
|
|
static _Return_type_success_(return != NULL)
|
|
WINTUN_ADAPTER *GetAdapter(_In_z_ const WCHAR *Pool, _In_ const GUID *CfgInstanceID)
|
|
{
|
|
HANDLE Mutex = NamespaceTakePoolMutex(Pool);
|
|
if (!Mutex)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to take pool mutex");
|
|
return NULL;
|
|
}
|
|
DWORD LastError;
|
|
WINTUN_ADAPTER *Adapter = NULL;
|
|
HDEVINFO DevInfo;
|
|
SP_DEVINFO_DATA DevInfoData;
|
|
if (!GetDevInfoData(CfgInstanceID, &DevInfo, &DevInfoData))
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to locate adapter");
|
|
goto cleanupMutex;
|
|
}
|
|
Adapter = CreateAdapterData(Pool, DevInfo, &DevInfoData);
|
|
LastError = Adapter ? ERROR_SUCCESS : LOG(WINTUN_LOG_ERR, L"Failed to create adapter data");
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
cleanupMutex:
|
|
NamespaceReleaseMutex(Mutex);
|
|
return RET_ERROR(Adapter, LastError);
|
|
}
|
|
|
|
#include "rundll32_i.c"
|
|
|
|
_Return_type_success_(return != NULL) WINTUN_ADAPTER *WINAPI WintunCreateAdapter(
|
|
_In_z_ const WCHAR *Pool,
|
|
_In_z_ const WCHAR *Name,
|
|
_In_opt_ const GUID *RequestedGUID,
|
|
_Out_opt_ BOOL *RebootRequired)
|
|
{
|
|
if (!ElevateToSystem())
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to impersonate SYSTEM user");
|
|
return NULL;
|
|
}
|
|
BOOL DummyRebootRequired;
|
|
if (!RebootRequired)
|
|
RebootRequired = &DummyRebootRequired;
|
|
*RebootRequired = FALSE;
|
|
DWORD LastError;
|
|
WINTUN_ADAPTER *Adapter;
|
|
if (MAYBE_WOW64 && NativeMachine != IMAGE_FILE_PROCESS)
|
|
{
|
|
Adapter = CreateAdapterViaRundll32(Pool, Name, RequestedGUID, RebootRequired);
|
|
LastError = Adapter ? ERROR_SUCCESS : GetLastError();
|
|
goto cleanupToken;
|
|
}
|
|
Adapter = CreateAdapter(Pool, Name, RequestedGUID, RebootRequired);
|
|
LastError = Adapter ? ERROR_SUCCESS : GetLastError();
|
|
cleanupToken:
|
|
RevertToSelf();
|
|
return RET_ERROR(Adapter, LastError);
|
|
}
|
|
|
|
_Return_type_success_(return != FALSE) BOOL WINAPI WintunDeleteAdapter(
|
|
_In_ const WINTUN_ADAPTER *Adapter,
|
|
_In_ BOOL ForceCloseSessions,
|
|
_Out_opt_ BOOL *RebootRequired)
|
|
{
|
|
if (!ElevateToSystem())
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to impersonate SYSTEM user");
|
|
return FALSE;
|
|
}
|
|
BOOL DummyRebootRequired;
|
|
if (!RebootRequired)
|
|
RebootRequired = &DummyRebootRequired;
|
|
*RebootRequired = FALSE;
|
|
DWORD LastError;
|
|
if (MAYBE_WOW64 && NativeMachine != IMAGE_FILE_PROCESS)
|
|
{
|
|
LastError =
|
|
DeleteAdapterViaRundll32(Adapter, ForceCloseSessions, RebootRequired) ? ERROR_SUCCESS : GetLastError();
|
|
goto cleanupToken;
|
|
}
|
|
|
|
HANDLE Mutex = NamespaceTakePoolMutex(Adapter->Pool);
|
|
if (!Mutex)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to take pool mutex");
|
|
goto cleanupToken;
|
|
}
|
|
|
|
HDEVINFO DevInfo;
|
|
SP_DEVINFO_DATA DevInfoData;
|
|
if (!GetDevInfoData(&Adapter->CfgInstanceID, &DevInfo, &DevInfoData))
|
|
{
|
|
if ((LastError = GetLastError()) == ERROR_FILE_NOT_FOUND)
|
|
LastError = ERROR_SUCCESS;
|
|
else
|
|
LOG(WINTUN_LOG_ERR, L"Failed to get adapter info data");
|
|
goto cleanupMutex;
|
|
}
|
|
|
|
if (ForceCloseSessions && !ForceCloseWintunAdapterHandle(DevInfo, &DevInfoData))
|
|
LOG(WINTUN_LOG_WARN, L"Failed to force close adapter handles");
|
|
|
|
SetQuietInstall(DevInfo, &DevInfoData);
|
|
SP_REMOVEDEVICE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER),
|
|
.InstallFunction = DIF_REMOVE },
|
|
.Scope = DI_REMOVEDEVICE_GLOBAL };
|
|
if ((!SetupDiSetClassInstallParamsW(DevInfo, &DevInfoData, &Params.ClassInstallHeader, sizeof(Params)) ||
|
|
!SetupDiCallClassInstaller(DIF_REMOVE, DevInfo, &DevInfoData)) &&
|
|
GetLastError() != ERROR_NO_SUCH_DEVINST)
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to remove existing adapter");
|
|
goto cleanupDevInfo;
|
|
}
|
|
LastError = ERROR_SUCCESS;
|
|
cleanupDevInfo:
|
|
*RebootRequired = *RebootRequired || CheckReboot(DevInfo, &DevInfoData);
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
cleanupMutex:
|
|
NamespaceReleaseMutex(Mutex);
|
|
cleanupToken:
|
|
RevertToSelf();
|
|
return RET_ERROR(TRUE, LastError);
|
|
}
|
|
|
|
static _Return_type_success_(return != FALSE) BOOL
|
|
DeleteAllOurAdapters(_In_ const WCHAR Pool[WINTUN_MAX_POOL], _Inout_ BOOL *RebootRequired)
|
|
{
|
|
HANDLE Mutex = NamespaceTakePoolMutex(Pool);
|
|
if (!Mutex)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to take pool mutex");
|
|
return FALSE;
|
|
}
|
|
DWORD LastError = ERROR_SUCCESS;
|
|
HDEVINFO DevInfo = SetupDiGetClassDevsExW(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
|
|
if (DevInfo == INVALID_HANDLE_VALUE)
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to get present adapters");
|
|
goto cleanupMutex;
|
|
}
|
|
SP_REMOVEDEVICE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER),
|
|
.InstallFunction = DIF_REMOVE },
|
|
.Scope = DI_REMOVEDEVICE_GLOBAL };
|
|
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;
|
|
}
|
|
|
|
if (!IsOurAdapter(DevInfo, &DevInfoData) || !IsPoolMember(Pool, DevInfo, &DevInfoData))
|
|
continue;
|
|
|
|
LOG(WINTUN_LOG_INFO, L"Force closing all open handles for existing adapter");
|
|
if (!ForceCloseWintunAdapterHandle(DevInfo, &DevInfoData))
|
|
LOG(WINTUN_LOG_WARN, L"Failed to force close adapter handles");
|
|
|
|
LOG(WINTUN_LOG_INFO, L"Removing existing adapter");
|
|
if ((!SetupDiSetClassInstallParamsW(DevInfo, &DevInfoData, &Params.ClassInstallHeader, sizeof(Params)) ||
|
|
!SetupDiCallClassInstaller(DIF_REMOVE, DevInfo, &DevInfoData)) &&
|
|
GetLastError() != ERROR_NO_SUCH_DEVINST)
|
|
{
|
|
LOG_LAST_ERROR(L"Failed to remove existing adapter");
|
|
LastError = LastError != ERROR_SUCCESS ? LastError : GetLastError();
|
|
}
|
|
*RebootRequired = *RebootRequired || CheckReboot(DevInfo, &DevInfoData);
|
|
}
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
cleanupMutex:
|
|
NamespaceReleaseMutex(Mutex);
|
|
return RET_ERROR(TRUE, LastError);
|
|
}
|
|
|
|
_Return_type_success_(return != FALSE) BOOL WINAPI
|
|
WintunDeletePoolDriver(_In_z_ const WCHAR *Pool, _Out_opt_ BOOL *RebootRequired)
|
|
{
|
|
if (!ElevateToSystem())
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to impersonate SYSTEM user");
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL DummyRebootRequired;
|
|
if (!RebootRequired)
|
|
RebootRequired = &DummyRebootRequired;
|
|
*RebootRequired = FALSE;
|
|
|
|
DWORD LastError = ERROR_SUCCESS;
|
|
if (MAYBE_WOW64 && NativeMachine != IMAGE_FILE_PROCESS)
|
|
{
|
|
LastError = DeletePoolDriverViaRundll32(Pool, RebootRequired) ? ERROR_SUCCESS : GetLastError();
|
|
goto cleanupToken;
|
|
}
|
|
|
|
if (!DeleteAllOurAdapters(Pool, RebootRequired))
|
|
{
|
|
LastError = GetLastError();
|
|
goto cleanupToken;
|
|
}
|
|
|
|
HANDLE DriverInstallationLock = NamespaceTakeDriverInstallationMutex();
|
|
if (!DriverInstallationLock)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to take driver installation mutex");
|
|
goto cleanupToken;
|
|
}
|
|
HDEVINFO DeviceInfoSet = SetupDiGetClassDevsW(&GUID_DEVCLASS_NET, NULL, NULL, 0);
|
|
if (!DeviceInfoSet)
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to get adapter information");
|
|
goto cleanupDriverInstallationLock;
|
|
}
|
|
if (!SetupDiBuildDriverInfoList(DeviceInfoSet, NULL, SPDIT_CLASSDRIVER))
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed building driver info list");
|
|
goto cleanupDeviceInfoSet;
|
|
}
|
|
for (DWORD EnumIndex = 0;; ++EnumIndex)
|
|
{
|
|
SP_DRVINFO_DATA_W DriverInfo = { .cbSize = sizeof(DriverInfo) };
|
|
if (!SetupDiEnumDriverInfoW(DeviceInfoSet, NULL, SPDIT_CLASSDRIVER, EnumIndex, &DriverInfo))
|
|
{
|
|
if (GetLastError() == ERROR_NO_MORE_ITEMS)
|
|
break;
|
|
continue;
|
|
}
|
|
SP_DRVINFO_DETAIL_DATA_W *DriverDetail = GetAdapterDrvInfoDetail(DeviceInfoSet, NULL, &DriverInfo);
|
|
if (!DriverDetail)
|
|
continue;
|
|
if (!_wcsicmp(DriverDetail->HardwareID, WINTUN_HWID))
|
|
{
|
|
LOG(WINTUN_LOG_INFO, L"Removing existing driver");
|
|
if (!SetupUninstallOEMInfW(PathFindFileNameW(DriverDetail->InfFileName), 0, NULL))
|
|
{
|
|
LOG_LAST_ERROR(L"Unable to remove existing driver");
|
|
LastError = LastError != ERROR_SUCCESS ? LastError : GetLastError();
|
|
}
|
|
}
|
|
Free(DriverDetail);
|
|
}
|
|
SetupDiDestroyDriverInfoList(DeviceInfoSet, NULL, SPDIT_CLASSDRIVER);
|
|
cleanupDeviceInfoSet:
|
|
SetupDiDestroyDeviceInfoList(DeviceInfoSet);
|
|
cleanupDriverInstallationLock:
|
|
NamespaceReleaseMutex(DriverInstallationLock);
|
|
cleanupToken:
|
|
RevertToSelf();
|
|
return RET_ERROR(TRUE, LastError);
|
|
}
|
|
|
|
_Return_type_success_(return != FALSE) BOOL WINAPI
|
|
WintunEnumAdapters(_In_z_ const WCHAR *Pool, _In_ WINTUN_ENUM_CALLBACK Func, _In_ LPARAM Param)
|
|
{
|
|
HANDLE Mutex = NamespaceTakePoolMutex(Pool);
|
|
if (!Mutex)
|
|
{
|
|
LOG(WINTUN_LOG_ERR, L"Failed to take pool mutex");
|
|
return FALSE;
|
|
}
|
|
DWORD LastError = ERROR_SUCCESS;
|
|
HDEVINFO DevInfo = SetupDiGetClassDevsExW(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
|
|
if (DevInfo == INVALID_HANDLE_VALUE)
|
|
{
|
|
LastError = LOG_LAST_ERROR(L"Failed to get present adapters");
|
|
goto cleanupMutex;
|
|
}
|
|
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;
|
|
}
|
|
|
|
if (!IsOurAdapter(DevInfo, &DevInfoData) || !IsPoolMember(Pool, DevInfo, &DevInfoData))
|
|
continue;
|
|
|
|
WINTUN_ADAPTER *Adapter = CreateAdapterData(Pool, DevInfo, &DevInfoData);
|
|
if (!Adapter)
|
|
{
|
|
LastError = LOG(WINTUN_LOG_ERR, L"Failed to create adapter data");
|
|
break;
|
|
}
|
|
Continue = Func(Adapter, Param);
|
|
Free(Adapter);
|
|
}
|
|
SetupDiDestroyDeviceInfoList(DevInfo);
|
|
cleanupMutex:
|
|
NamespaceReleaseMutex(Mutex);
|
|
return RET_ERROR(TRUE, LastError);
|
|
}
|