1 /*
2 * Copyright (c) 2021 The Khronos Group Inc.
3 * Copyright (c) 2021 Valve Corporation
4 * Copyright (c) 2021 LunarG, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and/or associated documentation files (the "Materials"), to
8 * deal in the Materials without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Materials, and to permit persons to whom the Materials are
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice(s) and this permission notice shall be included in
14 * all copies or substantial portions of the Materials.
15 *
16 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19 *
20 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
23 * USE OR OTHER DEALINGS IN THE MATERIALS.
24 *
25 * Author: Charles Giessen <charles@lunarg.com>
26 */
27
28 // This needs to be defined first, or else we'll get redefinitions on NTSTATUS values
29 #if defined(_WIN32)
30 #define UMDF_USING_NTSTATUS
31 #include <ntstatus.h>
32 #endif
33
34 #include "shim.h"
35
36 #include "detours.h"
37
38 static PlatformShim platform_shim;
39
40 extern "C" {
41
42 static LibraryWrapper gdi32_dll;
43
44 using PFN_GetSidSubAuthority = PDWORD(__stdcall *)(PSID pSid, DWORD nSubAuthority);
45 static PFN_GetSidSubAuthority fpGetSidSubAuthority = GetSidSubAuthority;
46
ShimGetSidSubAuthority(PSID, DWORD)47 PDWORD __stdcall ShimGetSidSubAuthority(PSID, DWORD) { return &platform_shim.elevation_level; }
48
49 static PFN_LoaderEnumAdapters2 fpEnumAdapters2 = nullptr;
50 static PFN_LoaderQueryAdapterInfo fpQueryAdapterInfo = nullptr;
51
ShimEnumAdapters2(LoaderEnumAdapters2 *adapters)52 NTSTATUS APIENTRY ShimEnumAdapters2(LoaderEnumAdapters2 *adapters) {
53 if (adapters == nullptr) {
54 return STATUS_INVALID_PARAMETER;
55 }
56 if (platform_shim.d3dkmt_adapters.size() == 0) {
57 if (adapters->adapters != nullptr) adapters->adapter_count = 0;
58 return STATUS_SUCCESS;
59 }
60 if (adapters->adapters != nullptr) {
61 for (size_t i = 0; i < platform_shim.d3dkmt_adapters.size(); i++) {
62 adapters->adapters[i].handle = platform_shim.d3dkmt_adapters[i].hAdapter;
63 adapters->adapters[i].luid = platform_shim.d3dkmt_adapters[i].adapter_luid;
64 }
65 adapters->adapter_count = static_cast<ULONG>(platform_shim.d3dkmt_adapters.size());
66 } else {
67 adapters->adapter_count = static_cast<ULONG>(platform_shim.d3dkmt_adapters.size());
68 }
69 return STATUS_SUCCESS;
70 }
ShimQueryAdapterInfo(const LoaderQueryAdapterInfo *query_info)71 NTSTATUS APIENTRY ShimQueryAdapterInfo(const LoaderQueryAdapterInfo *query_info) {
72 if (query_info == nullptr || query_info->private_data == nullptr) {
73 return STATUS_INVALID_PARAMETER;
74 }
75 auto handle = query_info->handle;
76 auto it = std::find_if(platform_shim.d3dkmt_adapters.begin(), platform_shim.d3dkmt_adapters.end(),
77 [handle](D3DKMT_Adapter const &adapter) { return handle == adapter.hAdapter; });
78 if (it == platform_shim.d3dkmt_adapters.end()) {
79 return STATUS_INVALID_PARAMETER;
80 }
81 auto &adapter = *it;
82 auto *reg_info = reinterpret_cast<LoaderQueryRegistryInfo *>(query_info->private_data);
83
84 std::vector<std::wstring> *paths = nullptr;
85 if (wcsstr(reg_info->value_name, L"DriverName") != nullptr) { // looking for drivers
86 paths = &adapter.driver_paths;
87 } else if (wcsstr(reg_info->value_name, L"ImplicitLayers") != nullptr) { // looking for implicit layers
88 paths = &adapter.implicit_layer_paths;
89 } else if (wcsstr(reg_info->value_name, L"ExplicitLayers") != nullptr) { // looking for explicit layers
90 paths = &adapter.explicit_layer_paths;
91 }
92
93 reg_info->status = LOADER_QUERY_REGISTRY_STATUS_SUCCESS;
94 if (reg_info->output_value_size == 0) {
95 ULONG size = 2; // final null terminator
96 for (auto const &path : *paths) size = static_cast<ULONG>(path.length() * sizeof(wchar_t));
97 // size in bytes, so multiply path size by two and add 2 for the null terminator
98 reg_info->output_value_size = size;
99 if (size != 2) {
100 // only want to write data if there is path data to write
101 reg_info->status = LOADER_QUERY_REGISTRY_STATUS_BUFFER_OVERFLOW;
102 }
103 } else if (reg_info->output_value_size > 2) {
104 size_t index = 0;
105 for (auto const &path : *paths) {
106 for (auto w : path) {
107 reg_info->output_string[index++] = w;
108 }
109 reg_info->output_string[index++] = L'\0';
110 }
111 // make sure there is a null terminator
112 reg_info->output_string[index++] = L'\0';
113
114 reg_info->status = LOADER_QUERY_REGISTRY_STATUS_SUCCESS;
115 }
116
117 return STATUS_SUCCESS;
118 }
119
120 // clang-format off
121 static CONFIGRET(WINAPI *REAL_CM_Get_Device_ID_List_SizeW)(PULONG pulLen, PCWSTR pszFilter, ULONG ulFlags) = CM_Get_Device_ID_List_SizeW;
122 static CONFIGRET(WINAPI *REAL_CM_Get_Device_ID_ListW)(PCWSTR pszFilter, PZZWSTR Buffer, ULONG BufferLen, ULONG ulFlags) = CM_Get_Device_ID_ListW;
123 static CONFIGRET(WINAPI *REAL_CM_Locate_DevNodeW)(PDEVINST pdnDevInst, DEVINSTID_W pDeviceID, ULONG ulFlags) = CM_Locate_DevNodeW;
124 static CONFIGRET(WINAPI *REAL_CM_Get_DevNode_Status)(PULONG pulStatus, PULONG pulProblemNumber, DEVINST dnDevInst, ULONG ulFlags) = CM_Get_DevNode_Status;
125 static CONFIGRET(WINAPI *REAL_CM_Get_Device_IDW)(DEVINST dnDevInst, PWSTR Buffer, ULONG BufferLen, ULONG ulFlags) = CM_Get_Device_IDW;
126 static CONFIGRET(WINAPI *REAL_CM_Get_Child)(PDEVINST pdnDevInst, DEVINST dnDevInst, ULONG ulFlags) = CM_Get_Child;
127 static CONFIGRET(WINAPI *REAL_CM_Get_DevNode_Registry_PropertyW)(DEVINST dnDevInst, ULONG ulProperty, PULONG pulRegDataType, PVOID Buffer, PULONG pulLength, ULONG ulFlags) = CM_Get_DevNode_Registry_PropertyW;
128 static CONFIGRET(WINAPI *REAL_CM_Get_Sibling)(PDEVINST pdnDevInst, DEVINST dnDevInst, ULONG ulFlags) = CM_Get_Sibling;
129 // clang-format on
130
SHIM_CM_Get_Device_ID_List_SizeW(PULONG pulLen, [[maybe_unused]] PCWSTR pszFilter, [[maybe_unused]] ULONG ulFlags)131 CONFIGRET WINAPI SHIM_CM_Get_Device_ID_List_SizeW(PULONG pulLen, [[maybe_unused]] PCWSTR pszFilter,
132 [[maybe_unused]] ULONG ulFlags) {
133 if (pulLen == nullptr) {
134 return CR_INVALID_POINTER;
135 }
136 *pulLen = static_cast<ULONG>(platform_shim.CM_device_ID_list.size());
137 return CR_SUCCESS;
138 }
SHIM_CM_Get_Device_ID_ListW([[maybe_unused]] PCWSTR pszFilter, PZZWSTR Buffer, ULONG BufferLen, [[maybe_unused]] ULONG ulFlags)139 CONFIGRET WINAPI SHIM_CM_Get_Device_ID_ListW([[maybe_unused]] PCWSTR pszFilter, PZZWSTR Buffer, ULONG BufferLen,
140 [[maybe_unused]] ULONG ulFlags) {
141 if (Buffer != NULL) {
142 if (BufferLen < platform_shim.CM_device_ID_list.size()) return CR_BUFFER_SMALL;
143 for (size_t i = 0; i < BufferLen; i++) {
144 Buffer[i] = platform_shim.CM_device_ID_list[i];
145 }
146 }
147 return CR_SUCCESS;
148 }
149 // TODO
SHIM_CM_Locate_DevNodeW(PDEVINST, DEVINSTID_W, ULONG)150 CONFIGRET WINAPI SHIM_CM_Locate_DevNodeW(PDEVINST, DEVINSTID_W, ULONG) { return CR_FAILURE; }
151 // TODO
SHIM_CM_Get_DevNode_Status(PULONG, PULONG, DEVINST, ULONG)152 CONFIGRET WINAPI SHIM_CM_Get_DevNode_Status(PULONG, PULONG, DEVINST, ULONG) { return CR_FAILURE; }
153 // TODO
SHIM_CM_Get_Device_IDW(DEVINST, PWSTR, ULONG, ULONG)154 CONFIGRET WINAPI SHIM_CM_Get_Device_IDW(DEVINST, PWSTR, ULONG, ULONG) { return CR_FAILURE; }
155 // TODO
SHIM_CM_Get_Child(PDEVINST, DEVINST, ULONG)156 CONFIGRET WINAPI SHIM_CM_Get_Child(PDEVINST, DEVINST, ULONG) { return CR_FAILURE; }
157 // TODO
SHIM_CM_Get_DevNode_Registry_PropertyW(DEVINST, ULONG, PULONG, PVOID, PULONG, ULONG)158 CONFIGRET WINAPI SHIM_CM_Get_DevNode_Registry_PropertyW(DEVINST, ULONG, PULONG, PVOID, PULONG, ULONG) { return CR_FAILURE; }
159 // TODO
SHIM_CM_Get_Sibling(PDEVINST, DEVINST, ULONG)160 CONFIGRET WINAPI SHIM_CM_Get_Sibling(PDEVINST, DEVINST, ULONG) { return CR_FAILURE; }
161
162 static LibraryWrapper dxgi_module;
163 typedef HRESULT(APIENTRY *PFN_CreateDXGIFactory1)(REFIID riid, void **ppFactory);
164
165 PFN_CreateDXGIFactory1 RealCreateDXGIFactory1;
166
ShimGetDesc1(IDXGIAdapter1 *pAdapter, _Out_ DXGI_ADAPTER_DESC1 *pDesc)167 HRESULT __stdcall ShimGetDesc1(IDXGIAdapter1 *pAdapter,
168 /* [annotation][out] */
169 _Out_ DXGI_ADAPTER_DESC1 *pDesc) {
170 if (pAdapter == nullptr || pDesc == nullptr) return DXGI_ERROR_INVALID_CALL;
171
172 for (const auto &[index, adapter] : platform_shim.dxgi_adapters) {
173 if (&adapter.adapter_instance == pAdapter) {
174 *pDesc = adapter.desc1;
175 return S_OK;
176 }
177 }
178 return DXGI_ERROR_INVALID_CALL;
179 }
ShimIDXGIFactory1Release(IDXGIFactory1 *)180 ULONG __stdcall ShimIDXGIFactory1Release(IDXGIFactory1 *) { return S_OK; }
ShimIDXGIFactory6Release(IDXGIFactory6 *)181 ULONG __stdcall ShimIDXGIFactory6Release(IDXGIFactory6 *) { return S_OK; }
ShimRelease(IDXGIAdapter1 *)182 ULONG __stdcall ShimRelease(IDXGIAdapter1 *) { return S_OK; }
183
setup_and_get_IDXGIAdapter1(DXGIAdapter &adapter)184 IDXGIAdapter1 *setup_and_get_IDXGIAdapter1(DXGIAdapter &adapter) {
185 adapter.adapter_vtbl_instance.GetDesc1 = ShimGetDesc1;
186 adapter.adapter_vtbl_instance.Release = ShimRelease;
187 adapter.adapter_instance.lpVtbl = &adapter.adapter_vtbl_instance;
188 return &adapter.adapter_instance;
189 }
190
ShimEnumAdapters1_1([[maybe_unused]] IDXGIFactory1 *This, UINT Adapter, _COM_Outptr_ IDXGIAdapter1 **ppAdapter)191 HRESULT __stdcall ShimEnumAdapters1_1([[maybe_unused]] IDXGIFactory1 *This,
192 /* [in] */ UINT Adapter,
193 /* [annotation][out] */
194 _COM_Outptr_ IDXGIAdapter1 **ppAdapter) {
195 if (Adapter >= platform_shim.dxgi_adapters.size()) {
196 return DXGI_ERROR_INVALID_CALL;
197 }
198 if (ppAdapter != nullptr) {
199 *ppAdapter = setup_and_get_IDXGIAdapter1(platform_shim.dxgi_adapters.at(Adapter));
200 }
201 return S_OK;
202 }
203
ShimEnumAdapters1_6([[maybe_unused]] IDXGIFactory6 *This, UINT Adapter, _COM_Outptr_ IDXGIAdapter1 **ppAdapter)204 HRESULT __stdcall ShimEnumAdapters1_6([[maybe_unused]] IDXGIFactory6 *This,
205 /* [in] */ UINT Adapter,
206 /* [annotation][out] */
207 _COM_Outptr_ IDXGIAdapter1 **ppAdapter) {
208 if (Adapter >= platform_shim.dxgi_adapters.size()) {
209 return DXGI_ERROR_INVALID_CALL;
210 }
211 if (ppAdapter != nullptr) {
212 *ppAdapter = setup_and_get_IDXGIAdapter1(platform_shim.dxgi_adapters.at(Adapter));
213 }
214 return S_OK;
215 }
216
ShimEnumAdapterByGpuPreference([[maybe_unused]] IDXGIFactory6 *This, _In_ UINT Adapter, [[maybe_unused]] _In_ DXGI_GPU_PREFERENCE GpuPreference, [[maybe_unused]] _In_ REFIID riid, _COM_Outptr_ void **ppvAdapter)217 HRESULT __stdcall ShimEnumAdapterByGpuPreference([[maybe_unused]] IDXGIFactory6 *This, _In_ UINT Adapter,
218 [[maybe_unused]] _In_ DXGI_GPU_PREFERENCE GpuPreference,
219 [[maybe_unused]] _In_ REFIID riid, _COM_Outptr_ void **ppvAdapter) {
220 if (Adapter >= platform_shim.dxgi_adapters.size()) {
221 return DXGI_ERROR_NOT_FOUND;
222 }
223 // loader always uses DXGI_GPU_PREFERENCE_UNSPECIFIED
224 // Update the shim if this isn't the case
225 assert(GpuPreference == DXGI_GPU_PREFERENCE::DXGI_GPU_PREFERENCE_UNSPECIFIED &&
226 "Test shim assumes the GpuPreference is unspecified.");
227 if (ppvAdapter != nullptr) {
228 *ppvAdapter = setup_and_get_IDXGIAdapter1(platform_shim.dxgi_adapters.at(Adapter));
229 }
230 return S_OK;
231 }
232
get_IDXGIFactory1()233 static IDXGIFactory1 *get_IDXGIFactory1() {
234 static IDXGIFactory1Vtbl vtbl{};
235 vtbl.EnumAdapters1 = ShimEnumAdapters1_1;
236 vtbl.Release = ShimIDXGIFactory1Release;
237 static IDXGIFactory1 factory{};
238 factory.lpVtbl = &vtbl;
239 return &factory;
240 }
241
get_IDXGIFactory6()242 static IDXGIFactory6 *get_IDXGIFactory6() {
243 static IDXGIFactory6Vtbl vtbl{};
244 vtbl.EnumAdapters1 = ShimEnumAdapters1_6;
245 vtbl.EnumAdapterByGpuPreference = ShimEnumAdapterByGpuPreference;
246 vtbl.Release = ShimIDXGIFactory6Release;
247 static IDXGIFactory6 factory{};
248 factory.lpVtbl = &vtbl;
249 return &factory;
250 }
251
ShimCreateDXGIFactory1(REFIID riid, void **ppFactory)252 HRESULT __stdcall ShimCreateDXGIFactory1(REFIID riid, void **ppFactory) {
253 if (riid == IID_IDXGIFactory1) {
254 auto *factory = get_IDXGIFactory1();
255 *ppFactory = factory;
256 return S_OK;
257 }
258 if (riid == IID_IDXGIFactory6) {
259 auto *factory = get_IDXGIFactory6();
260 *ppFactory = factory;
261 return S_OK;
262 }
263 assert(false && "new riid, update shim code to handle");
264 return S_FALSE;
265 }
266
267 // Windows Registry shims
268 using PFN_RegOpenKeyExA = LSTATUS(__stdcall *)(HKEY hKey, LPCSTR lpSubKey, DWORD ulOptions, REGSAM samDesired, PHKEY phkResult);
269 static PFN_RegOpenKeyExA fpRegOpenKeyExA = RegOpenKeyExA;
270 using PFN_RegQueryValueExA = LSTATUS(__stdcall *)(HKEY hKey, LPCSTR lpValueName, LPDWORD lpReserved, LPDWORD lpType, LPBYTE lpData,
271 LPDWORD lpcbData);
272 static PFN_RegQueryValueExA fpRegQueryValueExA = RegQueryValueExA;
273 using PFN_RegEnumValueA = LSTATUS(__stdcall *)(HKEY hKey, DWORD dwIndex, LPSTR lpValueName, LPDWORD lpcchValueName,
274 LPDWORD lpReserved, LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData);
275 static PFN_RegEnumValueA fpRegEnumValueA = RegEnumValueA;
276
277 using PFN_RegCloseKey = LSTATUS(__stdcall *)(HKEY hKey);
278 static PFN_RegCloseKey fpRegCloseKey = RegCloseKey;
279
ShimRegOpenKeyExA(HKEY hKey, LPCSTR lpSubKey, [[maybe_unused]] DWORD ulOptions, [[maybe_unused]] REGSAM samDesired, PHKEY phkResult)280 LSTATUS __stdcall ShimRegOpenKeyExA(HKEY hKey, LPCSTR lpSubKey, [[maybe_unused]] DWORD ulOptions,
281 [[maybe_unused]] REGSAM samDesired, PHKEY phkResult) {
282 if (HKEY_LOCAL_MACHINE != hKey && HKEY_CURRENT_USER != hKey) return ERROR_BADKEY;
283 std::string hive = "";
284 if (HKEY_LOCAL_MACHINE == hKey)
285 hive = "HKEY_LOCAL_MACHINE";
286 else if (HKEY_CURRENT_USER == hKey)
287 hive = "HKEY_CURRENT_USER";
288 if (hive == "") return ERROR_ACCESS_DENIED;
289
290 platform_shim.created_keys.emplace_back(platform_shim.created_key_count++, hive + "\\" + lpSubKey);
291 *phkResult = platform_shim.created_keys.back().get();
292 return 0;
293 }
get_path_of_created_key(HKEY hKey)294 const std::string *get_path_of_created_key(HKEY hKey) {
295 for (const auto &key : platform_shim.created_keys) {
296 if (key.key == hKey) {
297 return &key.path;
298 }
299 }
300 return nullptr;
301 }
get_registry_vector(std::string const &path)302 std::vector<RegistryEntry> *get_registry_vector(std::string const &path) {
303 if (path == "HKEY_LOCAL_MACHINE\\" VK_DRIVERS_INFO_REGISTRY_LOC) return &platform_shim.hkey_local_machine_drivers;
304 if (path == "HKEY_LOCAL_MACHINE\\" VK_ELAYERS_INFO_REGISTRY_LOC) return &platform_shim.hkey_local_machine_explicit_layers;
305 if (path == "HKEY_LOCAL_MACHINE\\" VK_ILAYERS_INFO_REGISTRY_LOC) return &platform_shim.hkey_local_machine_implicit_layers;
306 if (path == "HKEY_CURRENT_USER\\" VK_ELAYERS_INFO_REGISTRY_LOC) return &platform_shim.hkey_current_user_explicit_layers;
307 if (path == "HKEY_CURRENT_USER\\" VK_ILAYERS_INFO_REGISTRY_LOC) return &platform_shim.hkey_current_user_implicit_layers;
308 if (path == "HKEY_LOCAL_MACHINE\\" VK_SETTINGS_INFO_REGISTRY_LOC) return &platform_shim.hkey_local_machine_settings;
309 if (path == "HKEY_CURRENT_USER\\" VK_SETTINGS_INFO_REGISTRY_LOC) return &platform_shim.hkey_current_user_settings;
310 return nullptr;
311 }
ShimRegQueryValueExA(HKEY, LPCSTR, LPDWORD, LPDWORD, LPBYTE, LPDWORD)312 LSTATUS __stdcall ShimRegQueryValueExA(HKEY, LPCSTR, LPDWORD, LPDWORD, LPBYTE, LPDWORD) {
313 // TODO:
314 return ERROR_SUCCESS;
315 }
ShimRegEnumValueA(HKEY hKey, DWORD dwIndex, LPSTR lpValueName, LPDWORD lpcchValueName, [[maybe_unused]] LPDWORD lpReserved, [[maybe_unused]] LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData)316 LSTATUS __stdcall ShimRegEnumValueA(HKEY hKey, DWORD dwIndex, LPSTR lpValueName, LPDWORD lpcchValueName,
317 [[maybe_unused]] LPDWORD lpReserved, [[maybe_unused]] LPDWORD lpType, LPBYTE lpData,
318 LPDWORD lpcbData) {
319 const std::string *path = get_path_of_created_key(hKey);
320 if (path == nullptr) return ERROR_NO_MORE_ITEMS;
321
322 const auto *location_ptr = get_registry_vector(*path);
323 if (location_ptr == nullptr) return ERROR_NO_MORE_ITEMS;
324 const auto &location = *location_ptr;
325 if (dwIndex >= location.size()) return ERROR_NO_MORE_ITEMS;
326
327 if (*lpcchValueName < location[dwIndex].name.size()) return ERROR_NO_MORE_ITEMS;
328 for (size_t i = 0; i < location[dwIndex].name.size(); i++) {
329 lpValueName[i] = location[dwIndex].name[i];
330 }
331 lpValueName[location[dwIndex].name.size()] = '\0';
332 *lpcchValueName = static_cast<DWORD>(location[dwIndex].name.size() + 1);
333 if (*lpcbData < sizeof(DWORD)) return ERROR_NO_MORE_ITEMS;
334 DWORD *lpcbData_dword = reinterpret_cast<DWORD *>(lpData);
335 *lpcbData_dword = location[dwIndex].value;
336 *lpcbData = sizeof(DWORD);
337 return ERROR_SUCCESS;
338 }
ShimRegCloseKey(HKEY hKey)339 LSTATUS __stdcall ShimRegCloseKey(HKEY hKey) {
340 for (size_t i = 0; i < platform_shim.created_keys.size(); i++) {
341 if (platform_shim.created_keys[i].get() == hKey) {
342 platform_shim.created_keys.erase(platform_shim.created_keys.begin() + i);
343 return ERROR_SUCCESS;
344 }
345 }
346 return ERROR_SUCCESS;
347 }
348
349 // Windows app package shims
350 using PFN_GetPackagesByPackageFamily = LONG(WINAPI *)(PCWSTR, UINT32 *, PWSTR *, UINT32 *, WCHAR *);
351 static PFN_GetPackagesByPackageFamily fpGetPackagesByPackageFamily = GetPackagesByPackageFamily;
352 using PFN_GetPackagePathByFullName = LONG(WINAPI *)(PCWSTR, UINT32 *, PWSTR);
353 static PFN_GetPackagePathByFullName fpGetPackagePathByFullName = GetPackagePathByFullName;
354
355 static constexpr wchar_t package_full_name[] = L"ThisIsARandomStringSinceTheNameDoesn'tMatter";
ShimGetPackagesByPackageFamily(_In_ PCWSTR packageFamilyName, _Inout_ UINT32 *count, _Out_writes_opt_(*count) PWSTR *packageFullNames, _Inout_ UINT32 *bufferLength, _Out_writes_opt_(*bufferLength) WCHAR *buffer)356 LONG WINAPI ShimGetPackagesByPackageFamily(_In_ PCWSTR packageFamilyName, _Inout_ UINT32 *count,
357 _Out_writes_opt_(*count) PWSTR *packageFullNames, _Inout_ UINT32 *bufferLength,
358 _Out_writes_opt_(*bufferLength) WCHAR *buffer) {
359 if (!packageFamilyName || !count || !bufferLength) return ERROR_INVALID_PARAMETER;
360 if (!platform_shim.app_package_path.empty() && wcscmp(packageFamilyName, L"Microsoft.D3DMappingLayers_8wekyb3d8bbwe") == 0) {
361 if (*count > 0 && !packageFullNames) return ERROR_INVALID_PARAMETER;
362 if (*bufferLength > 0 && !buffer) return ERROR_INVALID_PARAMETER;
363 if (*count > 1) return ERROR_INVALID_PARAMETER;
364 bool too_small = *count < 1 || *bufferLength < ARRAYSIZE(package_full_name);
365 *count = 1;
366 *bufferLength = ARRAYSIZE(package_full_name);
367 if (too_small) return ERROR_INSUFFICIENT_BUFFER;
368
369 for (size_t i = 0; i < sizeof(package_full_name) / sizeof(wchar_t); i++) {
370 if (i >= *bufferLength) {
371 break;
372 }
373 buffer[i] = package_full_name[i];
374 }
375 *packageFullNames = buffer;
376 return 0;
377 }
378 *count = 0;
379 *bufferLength = 0;
380 return 0;
381 }
382
383 LONG WINAPI ShimGetPackagePathByFullName(_In_ PCWSTR packageFullName, _Inout_ UINT32 *pathLength,
384 _Out_writes_opt_(*pathLength) PWSTR path) {
385 if (!packageFullName || !pathLength) return ERROR_INVALID_PARAMETER;
386 if (*pathLength > 0 && !path) return ERROR_INVALID_PARAMETER;
387 if (wcscmp(packageFullName, package_full_name) != 0) {
388 *pathLength = 0;
389 return 0;
390 }
391 if (*pathLength < platform_shim.app_package_path.size() + 1) {
392 *pathLength = static_cast<UINT32>(platform_shim.app_package_path.size() + 1);
393 return ERROR_INSUFFICIENT_BUFFER;
394 }
395 for (size_t i = 0; i < platform_shim.app_package_path.length(); i++) {
396 if (i >= *pathLength) {
397 break;
398 }
399 path[i] = platform_shim.app_package_path.c_str()[i];
400 }
401 return 0;
402 }
403
404 // Initialization
405 void WINAPI DetourFunctions() {
406 if (!gdi32_dll) {
407 gdi32_dll = LibraryWrapper("gdi32.dll");
408 fpEnumAdapters2 = gdi32_dll.get_symbol("D3DKMTEnumAdapters2");
409 if (fpEnumAdapters2 == nullptr) {
410 std::cerr << "Failed to load D3DKMTEnumAdapters2\n";
411 return;
412 }
413 fpQueryAdapterInfo = gdi32_dll.get_symbol("D3DKMTQueryAdapterInfo");
414 if (fpQueryAdapterInfo == nullptr) {
415 std::cerr << "Failed to load D3DKMTQueryAdapterInfo\n";
416 return;
417 }
418 }
419 if (!dxgi_module) {
420 TCHAR systemPath[MAX_PATH] = "";
421 GetSystemDirectory(systemPath, MAX_PATH);
422 StringCchCat(systemPath, MAX_PATH, TEXT("\\dxgi.dll"));
423 dxgi_module = LibraryWrapper(systemPath);
424 RealCreateDXGIFactory1 = dxgi_module.get_symbol("CreateDXGIFactory1");
425 if (RealCreateDXGIFactory1 == nullptr) {
426 std::cerr << "Failed to load CreateDXGIFactory1\n";
427 }
428 }
429
430 DetourRestoreAfterWith();
431
432 DetourTransactionBegin();
433 DetourUpdateThread(GetCurrentThread());
434 DetourAttach(&(PVOID &)fpGetSidSubAuthority, (PVOID)ShimGetSidSubAuthority);
435 DetourAttach(&(PVOID &)fpEnumAdapters2, (PVOID)ShimEnumAdapters2);
436 DetourAttach(&(PVOID &)fpQueryAdapterInfo, (PVOID)ShimQueryAdapterInfo);
437 DetourAttach(&(PVOID &)REAL_CM_Get_Device_ID_List_SizeW, (PVOID)SHIM_CM_Get_Device_ID_List_SizeW);
438 DetourAttach(&(PVOID &)REAL_CM_Get_Device_ID_ListW, (PVOID)SHIM_CM_Get_Device_ID_ListW);
439 DetourAttach(&(PVOID &)REAL_CM_Get_Device_ID_ListW, (PVOID)SHIM_CM_Get_Device_ID_ListW);
440 DetourAttach(&(PVOID &)REAL_CM_Locate_DevNodeW, (PVOID)SHIM_CM_Locate_DevNodeW);
441 DetourAttach(&(PVOID &)REAL_CM_Get_DevNode_Status, (PVOID)SHIM_CM_Get_DevNode_Status);
442 DetourAttach(&(PVOID &)REAL_CM_Get_Device_IDW, (PVOID)SHIM_CM_Get_Device_IDW);
443 DetourAttach(&(PVOID &)REAL_CM_Get_Child, (PVOID)SHIM_CM_Get_Child);
444 DetourAttach(&(PVOID &)REAL_CM_Get_DevNode_Registry_PropertyW, (PVOID)SHIM_CM_Get_DevNode_Registry_PropertyW);
445 DetourAttach(&(PVOID &)REAL_CM_Get_Sibling, (PVOID)SHIM_CM_Get_Sibling);
446 DetourAttach(&(PVOID &)RealCreateDXGIFactory1, (PVOID)ShimCreateDXGIFactory1);
447 DetourAttach(&(PVOID &)fpRegOpenKeyExA, (PVOID)ShimRegOpenKeyExA);
448 DetourAttach(&(PVOID &)fpRegQueryValueExA, (PVOID)ShimRegQueryValueExA);
449 DetourAttach(&(PVOID &)fpRegEnumValueA, (PVOID)ShimRegEnumValueA);
450 DetourAttach(&(PVOID &)fpRegCloseKey, (PVOID)ShimRegCloseKey);
451 DetourAttach(&(PVOID &)fpGetPackagesByPackageFamily, (PVOID)ShimGetPackagesByPackageFamily);
452 DetourAttach(&(PVOID &)fpGetPackagePathByFullName, (PVOID)ShimGetPackagePathByFullName);
453 LONG error = DetourTransactionCommit();
454
455 if (error != NO_ERROR) {
456 std::cerr << "simple" << DETOURS_STRINGIFY(DETOURS_BITS) << ".dll:"
457 << " Error detouring function(): " << error << "\n";
458 }
459 }
460
461 void DetachFunctions() {
462 DetourTransactionBegin();
463 DetourUpdateThread(GetCurrentThread());
464 DetourDetach(&(PVOID &)fpGetSidSubAuthority, (PVOID)ShimGetSidSubAuthority);
465 DetourDetach(&(PVOID &)fpEnumAdapters2, (PVOID)ShimEnumAdapters2);
466 DetourDetach(&(PVOID &)fpQueryAdapterInfo, (PVOID)ShimQueryAdapterInfo);
467 DetourDetach(&(PVOID &)REAL_CM_Get_Device_ID_List_SizeW, (PVOID)SHIM_CM_Get_Device_ID_List_SizeW);
468 DetourDetach(&(PVOID &)REAL_CM_Get_Device_ID_ListW, (PVOID)SHIM_CM_Get_Device_ID_ListW);
469 DetourDetach(&(PVOID &)REAL_CM_Locate_DevNodeW, (PVOID)SHIM_CM_Locate_DevNodeW);
470 DetourDetach(&(PVOID &)REAL_CM_Get_DevNode_Status, (PVOID)SHIM_CM_Get_DevNode_Status);
471 DetourDetach(&(PVOID &)REAL_CM_Get_Device_IDW, (PVOID)SHIM_CM_Get_Device_IDW);
472 DetourDetach(&(PVOID &)REAL_CM_Get_Child, (PVOID)SHIM_CM_Get_Child);
473 DetourDetach(&(PVOID &)REAL_CM_Get_DevNode_Registry_PropertyW, (PVOID)SHIM_CM_Get_DevNode_Registry_PropertyW);
474 DetourDetach(&(PVOID &)REAL_CM_Get_Sibling, (PVOID)SHIM_CM_Get_Sibling);
475 DetourDetach(&(PVOID &)RealCreateDXGIFactory1, (PVOID)ShimCreateDXGIFactory1);
476 DetourDetach(&(PVOID &)fpRegOpenKeyExA, (PVOID)ShimRegOpenKeyExA);
477 DetourDetach(&(PVOID &)fpRegQueryValueExA, (PVOID)ShimRegQueryValueExA);
478 DetourDetach(&(PVOID &)fpRegEnumValueA, (PVOID)ShimRegEnumValueA);
479 DetourDetach(&(PVOID &)fpRegCloseKey, (PVOID)ShimRegCloseKey);
480 DetourDetach(&(PVOID &)fpGetPackagesByPackageFamily, (PVOID)ShimGetPackagesByPackageFamily);
481 DetourDetach(&(PVOID &)fpGetPackagePathByFullName, (PVOID)ShimGetPackagePathByFullName);
482 DetourTransactionCommit();
483 }
484
485 BOOL WINAPI DllMain([[maybe_unused]] HINSTANCE hinst, DWORD dwReason, [[maybe_unused]] LPVOID reserved) {
486 if (DetourIsHelperProcess()) {
487 return TRUE;
488 }
489
490 if (dwReason == DLL_PROCESS_ATTACH) {
491 DetourFunctions();
492 } else if (dwReason == DLL_PROCESS_DETACH) {
493 DetachFunctions();
494 }
495 return TRUE;
496 }
497 FRAMEWORK_EXPORT PlatformShim *get_platform_shim(std::vector<fs::FolderManager> *folders) {
498 platform_shim = PlatformShim(folders);
499 return &platform_shim;
500 }
501 }
502