| | 1 | /** @file\r |
| | 2 | MDE DXE Services Library provides functions that simplify the development of DXE Drivers. \r |
| | 3 | These functions help access data from sections of FFS files or from file path.\r |
| | 4 | \r |
| | 5 | Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>\r |
| | 6 | This program and the accompanying materials\r |
| | 7 | are licensed and made available under the terms and conditions of the BSD License\r |
| | 8 | which accompanies this distribution. The full text of the license may be found at\r |
| | 9 | http://opensource.org/licenses/bsd-license.php.\r |
| | 10 | \r |
| | 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| | 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| | 13 | \r |
| | 14 | **/\r |
| | 15 | \r |
| | 16 | #include <PiDxe.h>\r |
| | 17 | #include <Library/DebugLib.h>\r |
| | 18 | #include <Library/MemoryAllocationLib.h>\r |
| | 19 | #include <Library/UefiBootServicesTableLib.h>\r |
| | 20 | #include <Library/DevicePathLib.h>\r |
| | 21 | #include <Library/UefiLib.h>\r |
| | 22 | #include <Library/DxeServicesLib.h>\r |
| | 23 | #include <Protocol/FirmwareVolume2.h>\r |
| | 24 | #include <Protocol/LoadedImage.h>\r |
| | 25 | #include <Protocol/LoadFile2.h>\r |
| | 26 | #include <Protocol/LoadFile.h>\r |
| | 27 | #include <Protocol/SimpleFileSystem.h>\r |
| | 28 | #include <Guid/FileInfo.h>\r |
| | 29 | \r |
| | 30 | /**\r |
| | 31 | Identify the device handle from which the Image is loaded from. As this device handle is passed to\r |
| | 32 | GetSectionFromFv as the identifier for a Firmware Volume, an EFI_FIRMWARE_VOLUME2_PROTOCOL \r |
| | 33 | protocol instance should be located succesfully by calling gBS->HandleProtocol ().\r |
| | 34 | \r |
| | 35 | This function locates the EFI_LOADED_IMAGE_PROTOCOL instance installed\r |
| | 36 | on ImageHandle. It then returns EFI_LOADED_IMAGE_PROTOCOL.DeviceHandle.\r |
| | 37 | \r |
| | 38 | If ImageHandle is NULL, then ASSERT ();\r |
| | 39 | If failed to locate a EFI_LOADED_IMAGE_PROTOCOL on ImageHandle, then ASSERT ();\r |
| | 40 | \r |
| | 41 | @param ImageHandle The firmware allocated handle for UEFI image.\r |
| | 42 | \r |
| | 43 | @retval EFI_HANDLE The device handle from which the Image is loaded from.\r |
| | 44 | \r |
| | 45 | **/\r |
| | 46 | EFI_HANDLE\r |
| | 47 | InternalImageHandleToFvHandle (\r |
| | 48 | EFI_HANDLE ImageHandle\r |
| | 49 | )\r |
| | 50 | {\r |
| | 51 | EFI_STATUS Status;\r |
| | 52 | EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r |
| | 53 | \r |
| | 54 | ASSERT (ImageHandle != NULL);\r |
| | 55 | \r |
| | 56 | Status = gBS->HandleProtocol (\r |
| | 57 | (EFI_HANDLE *) ImageHandle,\r |
| | 58 | &gEfiLoadedImageProtocolGuid,\r |
| | 59 | (VOID **) &LoadedImage\r |
| | 60 | );\r |
| | 61 | \r |
| | 62 | ASSERT_EFI_ERROR (Status);\r |
| | 63 | \r |
| | 64 | return LoadedImage->DeviceHandle;\r |
| | 65 | \r |
| | 66 | }\r |
| | 67 | \r |
| | 68 | /**\r |
| | 69 | Allocate and fill a buffer from a Firmware Section identified by a Firmware File GUID name, a Firmware \r |
| | 70 | Section type and instance number from the specified Firmware Volume.\r |
| | 71 | \r |
| | 72 | This functions first locate the EFI_FIRMWARE_VOLUME2_PROTOCOL protocol instance on FvHandle in order to \r |
| | 73 | carry out the Firmware Volume read operation. The function then reads the Firmware Section found sepcifed \r |
| | 74 | by NameGuid, SectionType and SectionInstance. \r |
| | 75 | \r |
| | 76 | The details of this search order is defined in description of EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection () \r |
| | 77 | found in PI Specification.\r |
| | 78 | \r |
| | 79 | If SectionType is EFI_SECTION_TE, EFI_SECTION_TE is used as section type to start the search. If EFI_SECTION_TE section \r |
| | 80 | is not found, EFI_SECTION_PE32 will be used to try the search again. If no EFI_SECTION_PE32 section is found, EFI_NOT_FOUND \r |
| | 81 | is returned.\r |
| | 82 | \r |
| | 83 | The data and size is returned by Buffer and Size. The caller is responsible to free the Buffer allocated \r |
| | 84 | by this function. This function can be only called at TPL_NOTIFY and below.\r |
| | 85 | \r |
| | 86 | If FvHandle is NULL, then ASSERT ();\r |
| | 87 | If NameGuid is NULL, then ASSERT();\r |
| | 88 | If Buffer is NULL, then ASSERT();\r |
| | 89 | If Size is NULL, then ASSERT().\r |
| | 90 | \r |
| | 91 | @param FvHandle The device handle that contains a instance of \r |
| | 92 | EFI_FIRMWARE_VOLUME2_PROTOCOL instance.\r |
| | 93 | @param NameGuid The GUID name of a Firmware File.\r |
| | 94 | @param SectionType The Firmware Section type.\r |
| | 95 | @param SectionInstance The instance number of Firmware Section to \r |
| | 96 | read from starting from 0.\r |
| | 97 | @param Buffer On output, Buffer contains the the data read \r |
| | 98 | from the section in the Firmware File found.\r |
| | 99 | @param Size On output, the size of Buffer.\r |
| | 100 | \r |
| | 101 | @retval EFI_SUCCESS The image is found and data and size is returned.\r |
| | 102 | @retval EFI_NOT_FOUND The image specified by NameGuid and SectionType \r |
| | 103 | can't be found.\r |
| | 104 | @retval EFI_OUT_OF_RESOURCES There were not enough resources to allocate the \r |
| | 105 | output data buffer or complete the operations.\r |
| | 106 | @retval EFI_DEVICE_ERROR A hardware error occurs during reading from the \r |
| | 107 | Firmware Volume.\r |
| | 108 | @retval EFI_ACCESS_DENIED The firmware volume containing the searched \r |
| | 109 | Firmware File is configured to disallow reads.\r |
| | 110 | \r |
| | 111 | **/\r |
| | 112 | EFI_STATUS\r |
| | 113 | InternalGetSectionFromFv (\r |
| | 114 | IN EFI_HANDLE FvHandle,\r |
| | 115 | IN CONST EFI_GUID *NameGuid,\r |
| | 116 | IN EFI_SECTION_TYPE SectionType,\r |
| | 117 | IN UINTN SectionInstance,\r |
| | 118 | OUT VOID **Buffer,\r |
| | 119 | OUT UINTN *Size\r |
| | 120 | )\r |
| | 121 | {\r |
| | 122 | EFI_STATUS Status;\r |
| | 123 | EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;\r |
| | 124 | UINT32 AuthenticationStatus;\r |
| | 125 | \r |
| | 126 | ASSERT (NameGuid != NULL);\r |
| | 127 | ASSERT (Buffer != NULL);\r |
| | 128 | ASSERT (Size != NULL);\r |
| | 129 | \r |
| | 130 | ASSERT (FvHandle != NULL);\r |
| | 131 | \r |
| | 132 | Status = gBS->HandleProtocol (\r |
| | 133 | FvHandle,\r |
| | 134 | &gEfiFirmwareVolume2ProtocolGuid,\r |
| | 135 | (VOID **) &Fv\r |
| | 136 | );\r |
| | 137 | if (EFI_ERROR (Status)) {\r |
| | 138 | return EFI_NOT_FOUND;\r |
| | 139 | }\r |
| | 140 | \r |
| | 141 | //\r |
| | 142 | // Read desired section content in NameGuid file\r |
| | 143 | //\r |
| | 144 | *Buffer = NULL;\r |
| | 145 | *Size = 0;\r |
| | 146 | Status = Fv->ReadSection (\r |
| | 147 | Fv,\r |
| | 148 | NameGuid,\r |
| | 149 | SectionType,\r |
| | 150 | SectionInstance,\r |
| | 151 | Buffer,\r |
| | 152 | Size,\r |
| | 153 | &AuthenticationStatus\r |
| | 154 | );\r |
| | 155 | \r |
| | 156 | if (EFI_ERROR (Status) && (SectionType == EFI_SECTION_TE)) {\r |
| | 157 | //\r |
| | 158 | // Try reading PE32 section, if the required section is TE type \r |
| | 159 | //\r |
| | 160 | *Buffer = NULL;\r |
| | 161 | *Size = 0;\r |
| | 162 | Status = Fv->ReadSection (\r |
| | 163 | Fv,\r |
| | 164 | NameGuid,\r |
| | 165 | EFI_SECTION_PE32,\r |
| | 166 | SectionInstance,\r |
| | 167 | Buffer,\r |
| | 168 | Size,\r |
| | 169 | &AuthenticationStatus\r |
| | 170 | );\r |
| | 171 | }\r |
| | 172 | \r |
| | 173 | return Status;\r |
| | 174 | }\r |
| | 175 | \r |
| | 176 | /**\r |
| | 177 | Searches all the available firmware volumes and returns the first matching FFS section. \r |
| | 178 | \r |
| | 179 | This function searches all the firmware volumes for FFS files with FV file type specified by FileType\r |
| | 180 | The order that the firmware volumes is searched is not deterministic. For each available FV a search \r |
| | 181 | is made for FFS file of type FileType. If the FV contains more than one FFS file with the same FileType, \r |
| | 182 | the FileInstance instance will be the matched FFS file. For each FFS file found a search \r |
| | 183 | is made for FFS sections of type SectionType. If the FFS file contains at least SectionInstance instances \r |
| | 184 | of the FFS section specified by SectionType, then the SectionInstance instance is returned in Buffer. \r |
| | 185 | Buffer is allocated using AllocatePool(), and the size of the allocated buffer is returned in Size. \r |
| | 186 | It is the caller's responsibility to use FreePool() to free the allocated buffer. \r |
| | 187 | See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for details on how sections \r |
| | 188 | are retrieved from an FFS file based on SectionType and SectionInstance.\r |
| | 189 | \r |
| | 190 | If SectionType is EFI_SECTION_TE, and the search with an FFS file fails, \r |
| | 191 | the search will be retried with a section type of EFI_SECTION_PE32.\r |
| | 192 | This function must be called with a TPL <= TPL_NOTIFY.\r |
| | 193 | \r |
| | 194 | If Buffer is NULL, then ASSERT().\r |
| | 195 | If Size is NULL, then ASSERT().\r |
| | 196 | \r |
| | 197 | @param FileType Indicates the FV file type to search for within all \r |
| | 198 | available FVs.\r |
| | 199 | @param FileInstance Indicates which file instance within all available \r |
| | 200 | FVs specified by FileType.\r |
| | 201 | FileInstance starts from zero.\r |
| | 202 | @param SectionType Indicates the FFS section type to search for \r |
| | 203 | within the FFS file \r |
| | 204 | specified by FileType with FileInstance.\r |
| | 205 | @param SectionInstance Indicates which section instance within the FFS file \r |
| | 206 | specified by FileType with FileInstance to retrieve. \r |
| | 207 | SectionInstance starts from zero.\r |
| | 208 | @param Buffer On output, a pointer to a callee allocated buffer \r |
| | 209 | containing the FFS file section that was found.\r |
| | 210 | Is it the caller's responsibility to free this \r |
| | 211 | buffer using FreePool().\r |
| | 212 | @param Size On output, a pointer to the size, in bytes, of Buffer.\r |
| | 213 | \r |
| | 214 | @retval EFI_SUCCESS The specified FFS section was returned.\r |
| | 215 | @retval EFI_NOT_FOUND The specified FFS section could not be found.\r |
| | 216 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve \r |
| | 217 | the matching FFS section.\r |
| | 218 | @retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a \r |
| | 219 | device error.\r |
| | 220 | @retval EFI_ACCESS_DENIED The FFS section could not be retrieves because \r |
| | 221 | the firmware volume that \r |
| | 222 | contains the matching FFS section does not allow reads.\r |
| | 223 | **/\r |
| | 224 | EFI_STATUS\r |
| | 225 | EFIAPI\r |
| | 226 | GetSectionFromAnyFvByFileType (\r |
| | 227 | IN EFI_FV_FILETYPE FileType,\r |
| | 228 | IN UINTN FileInstance,\r |
| | 229 | IN EFI_SECTION_TYPE SectionType,\r |
| | 230 | IN UINTN SectionInstance,\r |
| | 231 | OUT VOID **Buffer,\r |
| | 232 | OUT UINTN *Size\r |
| | 233 | )\r |
| | 234 | {\r |
| | 235 | EFI_STATUS Status;\r |
| | 236 | EFI_HANDLE *HandleBuffer;\r |
| | 237 | UINTN HandleCount;\r |
| | 238 | UINTN IndexFv;\r |
| | 239 | UINTN IndexFile;\r |
| | 240 | UINTN Key;\r |
| | 241 | EFI_GUID NameGuid;\r |
| | 242 | EFI_FV_FILE_ATTRIBUTES Attributes;\r |
| | 243 | EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;\r |
| | 244 | \r |
| | 245 | //\r |
| | 246 | // Locate all available FVs.\r |
| | 247 | //\r |
| | 248 | HandleBuffer = NULL;\r |
| | 249 | Status = gBS->LocateHandleBuffer (\r |
| | 250 | ByProtocol,\r |
| | 251 | &gEfiFirmwareVolume2ProtocolGuid,\r |
| | 252 | NULL,\r |
| | 253 | &HandleCount,\r |
| | 254 | &HandleBuffer\r |
| | 255 | );\r |
| | 256 | if (EFI_ERROR (Status)) {\r |
| | 257 | return Status;\r |
| | 258 | }\r |
| | 259 | \r |
| | 260 | //\r |
| | 261 | // Go through FVs one by one to find the required section data.\r |
| | 262 | //\r |
| | 263 | for (IndexFv = 0; IndexFv < HandleCount; IndexFv++) {\r |
| | 264 | Status = gBS->HandleProtocol (\r |
| | 265 | HandleBuffer[IndexFv],\r |
| | 266 | &gEfiFirmwareVolume2ProtocolGuid,\r |
| | 267 | (VOID **)&Fv\r |
| | 268 | );\r |
| | 269 | if (EFI_ERROR (Status)) {\r |
| | 270 | continue;\r |
| | 271 | }\r |
| | 272 | \r |
| | 273 | //\r |
| | 274 | // Use Firmware Volume 2 Protocol to search for a file of type FileType in all FVs.\r |
| | 275 | //\r |
| | 276 | IndexFile = FileInstance + 1;\r |
| | 277 | Key = 0;\r |
| | 278 | do {\r |
| | 279 | Status = Fv->GetNextFile (Fv, &Key, &FileType, &NameGuid, &Attributes, Size);\r |
| | 280 | if (EFI_ERROR (Status)) {\r |
| | 281 | break;\r |
| | 282 | }\r |
| | 283 | IndexFile --;\r |
| | 284 | } while (IndexFile > 0);\r |
| | 285 | \r |
| | 286 | //\r |
| | 287 | // Fv File with the required FV file type is found.\r |
| | 288 | // Search the section file in the found FV file.\r |
| | 289 | //\r |
| | 290 | if (IndexFile == 0) {\r |
| | 291 | Status = InternalGetSectionFromFv (\r |
| | 292 | HandleBuffer[IndexFv], \r |
| | 293 | &NameGuid,\r |
| | 294 | SectionType,\r |
| | 295 | SectionInstance,\r |
| | 296 | Buffer,\r |
| | 297 | Size\r |
| | 298 | );\r |
| | 299 | \r |
| | 300 | if (!EFI_ERROR (Status)) {\r |
| | 301 | goto Done;\r |
| | 302 | }\r |
| | 303 | }\r |
| | 304 | }\r |
| | 305 | \r |
| | 306 | //\r |
| | 307 | // The required FFS section file is not found. \r |
| | 308 | //\r |
| | 309 | if (IndexFv == HandleCount) {\r |
| | 310 | Status = EFI_NOT_FOUND;\r |
| | 311 | }\r |
| | 312 | \r |
| | 313 | Done:\r |
| | 314 | if (HandleBuffer != NULL) { \r |
| | 315 | FreePool(HandleBuffer);\r |
| | 316 | }\r |
| | 317 | \r |
| | 318 | return Status;\r |
| | 319 | }\r |
| | 320 | \r |
| | 321 | /**\r |
| | 322 | Searches all the availables firmware volumes and returns the first matching FFS section. \r |
| | 323 | \r |
| | 324 | This function searches all the firmware volumes for FFS files with an FFS filename specified by NameGuid. \r |
| | 325 | The order that the firmware volumes is searched is not deterministic. For each FFS file found a search \r |
| | 326 | is made for FFS sections of type SectionType. If the FFS file contains at least SectionInstance instances \r |
| | 327 | of the FFS section specified by SectionType, then the SectionInstance instance is returned in Buffer. \r |
| | 328 | Buffer is allocated using AllocatePool(), and the size of the allocated buffer is returned in Size. \r |
| | 329 | It is the caller's responsibility to use FreePool() to free the allocated buffer. \r |
| | 330 | See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for details on how sections \r |
| | 331 | are retrieved from an FFS file based on SectionType and SectionInstance.\r |
| | 332 | \r |
| | 333 | If SectionType is EFI_SECTION_TE, and the search with an FFS file fails, \r |
| | 334 | the search will be retried with a section type of EFI_SECTION_PE32.\r |
| | 335 | This function must be called with a TPL <= TPL_NOTIFY.\r |
| | 336 | \r |
| | 337 | If NameGuid is NULL, then ASSERT().\r |
| | 338 | If Buffer is NULL, then ASSERT().\r |
| | 339 | If Size is NULL, then ASSERT().\r |
| | 340 | \r |
| | 341 | \r |
| | 342 | @param NameGuid A pointer to to the FFS filename GUID to search for \r |
| | 343 | within any of the firmware volumes in the platform. \r |
| | 344 | @param SectionType Indicates the FFS section type to search for within \r |
| | 345 | the FFS file specified by NameGuid.\r |
| | 346 | @param SectionInstance Indicates which section instance within the FFS file \r |
| | 347 | specified by NameGuid to retrieve.\r |
| | 348 | @param Buffer On output, a pointer to a callee allocated buffer \r |
| | 349 | containing the FFS file section that was found. \r |
| | 350 | Is it the caller's responsibility to free this buffer \r |
| | 351 | using FreePool().\r |
| | 352 | @param Size On output, a pointer to the size, in bytes, of Buffer.\r |
| | 353 | \r |
| | 354 | @retval EFI_SUCCESS The specified FFS section was returned.\r |
| | 355 | @retval EFI_NOT_FOUND The specified FFS section could not be found.\r |
| | 356 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to \r |
| | 357 | retrieve the matching FFS section.\r |
| | 358 | @retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a \r |
| | 359 | device error.\r |
| | 360 | @retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the \r |
| | 361 | firmware volume that \r |
| | 362 | contains the matching FFS section does not allow reads.\r |
| | 363 | **/\r |
| | 364 | EFI_STATUS\r |
| | 365 | EFIAPI\r |
| | 366 | GetSectionFromAnyFv (\r |
| | 367 | IN CONST EFI_GUID *NameGuid,\r |
| | 368 | IN EFI_SECTION_TYPE SectionType,\r |
| | 369 | IN UINTN SectionInstance,\r |
| | 370 | OUT VOID **Buffer,\r |
| | 371 | OUT UINTN *Size\r |
| | 372 | )\r |
| | 373 | {\r |
| | 374 | EFI_STATUS Status;\r |
| | 375 | EFI_HANDLE *HandleBuffer;\r |
| | 376 | UINTN HandleCount;\r |
| | 377 | UINTN Index;\r |
| | 378 | EFI_HANDLE FvHandle;\r |
| | 379 | \r |
| | 380 | //\r |
| | 381 | // Search the FV that contain the caller's FFS first.\r |
| | 382 | // FV builder can choose to build FFS into the this FV\r |
| | 383 | // so that this implementation of GetSectionFromAnyFv\r |
| | 384 | // will locate the FFS faster.\r |
| | 385 | //\r |
| | 386 | FvHandle = InternalImageHandleToFvHandle (gImageHandle);\r |
| | 387 | Status = InternalGetSectionFromFv (\r |
| | 388 | FvHandle,\r |
| | 389 | NameGuid,\r |
| | 390 | SectionType,\r |
| | 391 | SectionInstance,\r |
| | 392 | Buffer,\r |
| | 393 | Size\r |
| | 394 | );\r |
| | 395 | if (!EFI_ERROR (Status)) {\r |
| | 396 | return EFI_SUCCESS;\r |
| | 397 | }\r |
| | 398 | \r |
| | 399 | HandleBuffer = NULL;\r |
| | 400 | Status = gBS->LocateHandleBuffer (\r |
| | 401 | ByProtocol,\r |
| | 402 | &gEfiFirmwareVolume2ProtocolGuid,\r |
| | 403 | NULL,\r |
| | 404 | &HandleCount,\r |
| | 405 | &HandleBuffer\r |
| | 406 | );\r |
| | 407 | if (EFI_ERROR (Status)) {\r |
| | 408 | goto Done;\r |
| | 409 | }\r |
| | 410 | \r |
| | 411 | for (Index = 0; Index < HandleCount; Index++) {\r |
| | 412 | //\r |
| | 413 | // Skip the FV that contain the caller's FFS\r |
| | 414 | //\r |
| | 415 | if (HandleBuffer[Index] != FvHandle) {\r |
| | 416 | Status = InternalGetSectionFromFv (\r |
| | 417 | HandleBuffer[Index], \r |
| | 418 | NameGuid, \r |
| | 419 | SectionType, \r |
| | 420 | SectionInstance,\r |
| | 421 | Buffer, \r |
| | 422 | Size\r |
| | 423 | );\r |
| | 424 | \r |
| | 425 | if (!EFI_ERROR (Status)) {\r |
| | 426 | goto Done;\r |
| | 427 | }\r |
| | 428 | }\r |
| | 429 | \r |
| | 430 | }\r |
| | 431 | \r |
| | 432 | if (Index == HandleCount) {\r |
| | 433 | Status = EFI_NOT_FOUND;\r |
| | 434 | }\r |
| | 435 | \r |
| | 436 | Done:\r |
| | 437 | \r |
| | 438 | if (HandleBuffer != NULL) { \r |
| | 439 | FreePool(HandleBuffer);\r |
| | 440 | }\r |
| | 441 | return Status;\r |
| | 442 | \r |
| | 443 | }\r |
| | 444 | \r |
| | 445 | /**\r |
| | 446 | Searches the firmware volume that the currently executing module was loaded from and returns the first matching FFS section. \r |
| | 447 | \r |
| | 448 | This function searches the firmware volume that the currently executing module was loaded \r |
| | 449 | from for an FFS file with an FFS filename specified by NameGuid. If the FFS file is found a search \r |
| | 450 | is made for FFS sections of type SectionType. If the FFS file contains at least SectionInstance \r |
| | 451 | instances of the FFS section specified by SectionType, then the SectionInstance instance is returned in Buffer.\r |
| | 452 | Buffer is allocated using AllocatePool(), and the size of the allocated buffer is returned in Size. \r |
| | 453 | It is the caller's responsibility to use FreePool() to free the allocated buffer. \r |
| | 454 | See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for details on how sections are retrieved from \r |
| | 455 | an FFS file based on SectionType and SectionInstance.\r |
| | 456 | \r |
| | 457 | If the currently executing module was not loaded from a firmware volume, then EFI_NOT_FOUND is returned.\r |
| | 458 | If SectionType is EFI_SECTION_TE, and the search with an FFS file fails, \r |
| | 459 | the search will be retried with a section type of EFI_SECTION_PE32.\r |
| | 460 | \r |
| | 461 | This function must be called with a TPL <= TPL_NOTIFY.\r |
| | 462 | If NameGuid is NULL, then ASSERT().\r |
| | 463 | If Buffer is NULL, then ASSERT().\r |
| | 464 | If Size is NULL, then ASSERT().\r |
| | 465 | \r |
| | 466 | @param NameGuid A pointer to to the FFS filename GUID to search for \r |
| | 467 | within the firmware volumes that the currently \r |
| | 468 | executing module was loaded from.\r |
| | 469 | @param SectionType Indicates the FFS section type to search for within \r |
| | 470 | the FFS file specified by NameGuid.\r |
| | 471 | @param SectionInstance Indicates which section instance within the FFS file \r |
| | 472 | specified by NameGuid to retrieve.\r |
| | 473 | @param Buffer On output, a pointer to a callee allocated buffer \r |
| | 474 | containing the FFS file section that was found. \r |
| | 475 | Is it the caller's responsibility to free this buffer \r |
| | 476 | using FreePool().\r |
| | 477 | @param Size On output, a pointer to the size, in bytes, of Buffer.\r |
| | 478 | \r |
| | 479 | \r |
| | 480 | @retval EFI_SUCCESS The specified FFS section was returned.\r |
| | 481 | @retval EFI_NOT_FOUND The specified FFS section could not be found.\r |
| | 482 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve \r |
| | 483 | the matching FFS section.\r |
| | 484 | @retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a \r |
| | 485 | device error.\r |
| | 486 | @retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the \r |
| | 487 | firmware volume that contains the matching FFS \r |
| | 488 | section does not allow reads. \r |
| | 489 | **/\r |
| | 490 | EFI_STATUS\r |
| | 491 | EFIAPI\r |
| | 492 | GetSectionFromFv (\r |
| | 493 | IN CONST EFI_GUID *NameGuid,\r |
| | 494 | IN EFI_SECTION_TYPE SectionType,\r |
| | 495 | IN UINTN SectionInstance,\r |
| | 496 | OUT VOID **Buffer,\r |
| | 497 | OUT UINTN *Size\r |
| | 498 | )\r |
| | 499 | {\r |
| | 500 | return InternalGetSectionFromFv (\r |
| | 501 | InternalImageHandleToFvHandle(gImageHandle),\r |
| | 502 | NameGuid,\r |
| | 503 | SectionType,\r |
| | 504 | SectionInstance,\r |
| | 505 | Buffer,\r |
| | 506 | Size\r |
| | 507 | );\r |
| | 508 | }\r |
| | 509 | \r |
| | 510 | \r |
| | 511 | /**\r |
| | 512 | Searches the FFS file the the currently executing module was loaded from and returns the first matching FFS section.\r |
| | 513 | \r |
| | 514 | This function searches the FFS file that the currently executing module was loaded from for a FFS sections of type SectionType.\r |
| | 515 | If the FFS file contains at least SectionInstance instances of the FFS section specified by SectionType, \r |
| | 516 | then the SectionInstance instance is returned in Buffer. Buffer is allocated using AllocatePool(), \r |
| | 517 | and the size of the allocated buffer is returned in Size. It is the caller's responsibility \r |
| | 518 | to use FreePool() to free the allocated buffer. See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for \r |
| | 519 | details on how sections are retrieved from an FFS file based on SectionType and SectionInstance.\r |
| | 520 | \r |
| | 521 | If the currently executing module was not loaded from an FFS file, then EFI_NOT_FOUND is returned.\r |
| | 522 | If SectionType is EFI_SECTION_TE, and the search with an FFS file fails, \r |
| | 523 | the search will be retried with a section type of EFI_SECTION_PE32.\r |
| | 524 | This function must be called with a TPL <= TPL_NOTIFY.\r |
| | 525 | \r |
| | 526 | If Buffer is NULL, then ASSERT().\r |
| | 527 | If Size is NULL, then ASSERT().\r |
| | 528 | \r |
| | 529 | \r |
| | 530 | @param SectionType Indicates the FFS section type to search for within \r |
| | 531 | the FFS file that the currently executing module \r |
| | 532 | was loaded from.\r |
| | 533 | @param SectionInstance Indicates which section instance to retrieve within \r |
| | 534 | the FFS file that the currently executing module \r |
| | 535 | was loaded from.\r |
| | 536 | @param Buffer On output, a pointer to a callee allocated buffer \r |
| | 537 | containing the FFS file section that was found. \r |
| | 538 | Is it the caller's responsibility to free this buffer \r |
| | 539 | using FreePool().\r |
| | 540 | @param Size On output, a pointer to the size, in bytes, of Buffer.\r |
| | 541 | \r |
| | 542 | @retval EFI_SUCCESS The specified FFS section was returned.\r |
| | 543 | @retval EFI_NOT_FOUND The specified FFS section could not be found.\r |
| | 544 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve \r |
| | 545 | the matching FFS section.\r |
| | 546 | @retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a \r |
| | 547 | device error.\r |
| | 548 | @retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the \r |
| | 549 | firmware volume that contains the matching FFS \r |
| | 550 | section does not allow reads. \r |
| | 551 | \r |
| | 552 | **/\r |
| | 553 | EFI_STATUS\r |
| | 554 | EFIAPI\r |
| | 555 | GetSectionFromFfs (\r |
| | 556 | IN EFI_SECTION_TYPE SectionType,\r |
| | 557 | IN UINTN SectionInstance,\r |
| | 558 | OUT VOID **Buffer,\r |
| | 559 | OUT UINTN *Size\r |
| | 560 | )\r |
| | 561 | {\r |
| | 562 | return InternalGetSectionFromFv(\r |
| | 563 | InternalImageHandleToFvHandle(gImageHandle),\r |
| | 564 | &gEfiCallerIdGuid,\r |
| | 565 | SectionType,\r |
| | 566 | SectionInstance,\r |
| | 567 | Buffer,\r |
| | 568 | Size\r |
| | 569 | );\r |
| | 570 | }\r |
| | 571 | \r |
| | 572 | \r |
| | 573 | /**\r |
| | 574 | Get the image file buffer data and buffer size by its device path. \r |
| | 575 | \r |
| | 576 | Access the file either from a firmware volume, from a file system interface, \r |
| | 577 | or from the load file interface.\r |
| | 578 | \r |
| | 579 | Allocate memory to store the found image. The caller is responsible to free memory.\r |
| | 580 | \r |
| | 581 | If File is NULL, then NULL is returned.\r |
| | 582 | If FileSize is NULL, then NULL is returned.\r |
| | 583 | If AuthenticationStatus is NULL, then NULL is returned.\r |
| | 584 | \r |
| | 585 | @param[in] BootPolicy Policy for Open Image File.If TRUE, indicates \r |
| | 586 | that the request originates from the boot \r |
| | 587 | manager, and that the boot manager is\r |
| | 588 | attempting to load FilePath as a boot\r |
| | 589 | selection. If FALSE, then FilePath must \r |
| | 590 | match an exact file to be loaded.\r |
| | 591 | @param[in] FilePath The pointer to the device path of the file\r |
| | 592 | that is absracted to the file buffer.\r |
| | 593 | @param[out] FileSize The pointer to the size of the abstracted \r |
| | 594 | file buffer.\r |
| | 595 | @param[out] AuthenticationStatus The pointer to a caller-allocated UINT32 \r |
| | 596 | in which the authentication status is returned.\r |
| | 597 | \r |
| | 598 | @retval NULL File is NULL, or FileSize is NULL. Or, the file can't be found.\r |
| | 599 | @retval other The abstracted file buffer. The caller is responsible to free memory.\r |
| | 600 | **/\r |
| | 601 | VOID *\r |
| | 602 | EFIAPI\r |
| | 603 | GetFileBufferByFilePath (\r |
| | 604 | IN BOOLEAN BootPolicy,\r |
| | 605 | IN CONST EFI_DEVICE_PATH_PROTOCOL *FilePath,\r |
| | 606 | OUT UINTN *FileSize,\r |
| | 607 | OUT UINT32 *AuthenticationStatus\r |
| | 608 | )\r |
| | 609 | {\r |
| | 610 | EFI_DEVICE_PATH_PROTOCOL *DevicePathNode;\r |
| | 611 | EFI_DEVICE_PATH_PROTOCOL *OrigDevicePathNode;\r |
| | 612 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePathNode;\r |
| | 613 | EFI_HANDLE Handle;\r |
| | 614 | EFI_GUID *FvNameGuid;\r |
| | 615 | EFI_FIRMWARE_VOLUME2_PROTOCOL *FwVol;\r |
| | 616 | EFI_SECTION_TYPE SectionType;\r |
| | 617 | UINT8 *ImageBuffer;\r |
| | 618 | UINTN ImageBufferSize;\r |
| | 619 | EFI_FV_FILETYPE Type;\r |
| | 620 | EFI_FV_FILE_ATTRIBUTES Attrib;\r |
| | 621 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;\r |
| | 622 | EFI_FILE_HANDLE FileHandle;\r |
| | 623 | EFI_FILE_HANDLE LastHandle;\r |
| | 624 | EFI_FILE_INFO *FileInfo;\r |
| | 625 | UINTN FileInfoSize;\r |
| | 626 | EFI_LOAD_FILE_PROTOCOL *LoadFile;\r |
| | 627 | EFI_LOAD_FILE2_PROTOCOL *LoadFile2;\r |
| | 628 | EFI_STATUS Status;\r |
| | 629 | \r |
| | 630 | //\r |
| | 631 | // Check input File device path.\r |
| | 632 | //\r |
| | 633 | if (FilePath == NULL || FileSize == NULL || AuthenticationStatus == NULL) {\r |
| | 634 | return NULL;\r |
| | 635 | }\r |
| | 636 | \r |
| | 637 | //\r |
| | 638 | // Init local variable\r |
| | 639 | //\r |
| | 640 | TempDevicePathNode = NULL;\r |
| | 641 | FvNameGuid = NULL;\r |
| | 642 | FileInfo = NULL;\r |
| | 643 | FileHandle = NULL;\r |
| | 644 | ImageBuffer = NULL;\r |
| | 645 | ImageBufferSize = 0;\r |
| | 646 | *AuthenticationStatus = 0;\r |
| | 647 | \r |
| | 648 | //\r |
| | 649 | // Copy File Device Path\r |
| | 650 | //\r |
| | 651 | OrigDevicePathNode = DuplicateDevicePath (FilePath);\r |
| | 652 | if (OrigDevicePathNode == NULL) {\r |
| | 653 | return NULL;\r |
| | 654 | }\r |
| | 655 | \r |
| | 656 | //\r |
| | 657 | // Check whether this device path support FV2 protocol.\r |
| | 658 | // Is so, this device path may contain a Image.\r |
| | 659 | //\r |
| | 660 | DevicePathNode = OrigDevicePathNode;\r |
| | 661 | Status = gBS->LocateDevicePath (&gEfiFirmwareVolume2ProtocolGuid, &DevicePathNode, &Handle);\r |
| | 662 | if (!EFI_ERROR (Status)) {\r |
| | 663 | //\r |
| | 664 | // For FwVol File system there is only a single file name that is a GUID.\r |
| | 665 | //\r |
| | 666 | FvNameGuid = EfiGetNameGuidFromFwVolDevicePathNode ((CONST MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) DevicePathNode);\r |
| | 667 | if (FvNameGuid == NULL) {\r |
| | 668 | Status = EFI_INVALID_PARAMETER;\r |
| | 669 | } else {\r |
| | 670 | //\r |
| | 671 | // Read image from the firmware file\r |
| | 672 | //\r |
| | 673 | Status = gBS->HandleProtocol (Handle, &gEfiFirmwareVolume2ProtocolGuid, (VOID**)&FwVol);\r |
| | 674 | if (!EFI_ERROR (Status)) {\r |
| | 675 | SectionType = EFI_SECTION_PE32;\r |
| | 676 | ImageBuffer = NULL;\r |
| | 677 | Status = FwVol->ReadSection (\r |
| | 678 | FwVol,\r |
| | 679 | FvNameGuid,\r |
| | 680 | SectionType,\r |
| | 681 | 0,\r |
| | 682 | (VOID **)&ImageBuffer,\r |
| | 683 | &ImageBufferSize,\r |
| | 684 | AuthenticationStatus\r |
| | 685 | );\r |
| | 686 | if (EFI_ERROR (Status)) {\r |
| | 687 | //\r |
| | 688 | // Try a raw file, since a PE32 SECTION does not exist\r |
| | 689 | //\r |
| | 690 | if (ImageBuffer != NULL) {\r |
| | 691 | FreePool (ImageBuffer);\r |
| | 692 | *AuthenticationStatus = 0;\r |
| | 693 | }\r |
| | 694 | ImageBuffer = NULL;\r |
| | 695 | Status = FwVol->ReadFile (\r |
| | 696 | FwVol,\r |
| | 697 | FvNameGuid,\r |
| | 698 | (VOID **)&ImageBuffer,\r |
| | 699 | &ImageBufferSize,\r |
| | 700 | &Type,\r |
| | 701 | &Attrib,\r |
| | 702 | AuthenticationStatus\r |
| | 703 | );\r |
| | 704 | }\r |
| | 705 | }\r |
| | 706 | }\r |
| | 707 | goto Finish;\r |
| | 708 | }\r |
| | 709 | \r |
| | 710 | //\r |
| | 711 | // Attempt to access the file via a file system interface\r |
| | 712 | //\r |
| | 713 | DevicePathNode = OrigDevicePathNode;\r |
| | 714 | Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &DevicePathNode, &Handle);\r |
| | 715 | if (!EFI_ERROR (Status)) {\r |
| | 716 | Status = gBS->HandleProtocol (Handle, &gEfiSimpleFileSystemProtocolGuid, (VOID**)&Volume);\r |
| | 717 | if (!EFI_ERROR (Status)) {\r |
| | 718 | //\r |
| | 719 | // Open the Volume to get the File System handle\r |
| | 720 | //\r |
| | 721 | Status = Volume->OpenVolume (Volume, &FileHandle);\r |
| | 722 | if (!EFI_ERROR (Status)) {\r |
| | 723 | //\r |
| | 724 | // Duplicate the device path to avoid the access to unaligned device path node.\r |
| | 725 | // Because the device path consists of one or more FILE PATH MEDIA DEVICE PATH\r |
| | 726 | // nodes, It assures the fields in device path nodes are 2 byte aligned.\r |
| | 727 | //\r |
| | 728 | TempDevicePathNode = DuplicateDevicePath (DevicePathNode);\r |
| | 729 | if (TempDevicePathNode == NULL) {\r |
| | 730 | FileHandle->Close (FileHandle);\r |
| | 731 | Status = EFI_OUT_OF_RESOURCES;\r |
| | 732 | goto Finish;\r |
| | 733 | }\r |
| | 734 | //\r |
| | 735 | // Parse each MEDIA_FILEPATH_DP node. There may be more than one, since the\r |
| | 736 | // directory information and filename can be seperate. The goal is to inch\r |
| | 737 | // our way down each device path node and close the previous node\r |
| | 738 | //\r |
| | 739 | DevicePathNode = TempDevicePathNode;\r |
| | 740 | while (!IsDevicePathEnd (DevicePathNode) && !EFI_ERROR (Status)) {\r |
| | 741 | if (DevicePathType (DevicePathNode) != MEDIA_DEVICE_PATH ||\r |
| | 742 | DevicePathSubType (DevicePathNode) != MEDIA_FILEPATH_DP) {\r |
| | 743 | Status = EFI_UNSUPPORTED;\r |
| | 744 | break;\r |
| | 745 | }\r |
| | 746 | \r |
| | 747 | LastHandle = FileHandle;\r |
| | 748 | FileHandle = NULL;\r |
| | 749 | \r |
| | 750 | Status = LastHandle->Open (\r |
| | 751 | LastHandle,\r |
| | 752 | &FileHandle,\r |
| | 753 | ((FILEPATH_DEVICE_PATH *) DevicePathNode)->PathName,\r |
| | 754 | EFI_FILE_MODE_READ,\r |
| | 755 | 0\r |
| | 756 | );\r |
| | 757 | \r |
| | 758 | //\r |
| | 759 | // Close the previous node\r |
| | 760 | //\r |
| | 761 | LastHandle->Close (LastHandle);\r |
| | 762 | \r |
| | 763 | DevicePathNode = NextDevicePathNode (DevicePathNode);\r |
| | 764 | }\r |
| | 765 | \r |
| | 766 | if (!EFI_ERROR (Status)) {\r |
| | 767 | //\r |
| | 768 | // We have found the file. Now we need to read it. Before we can read the file we need to\r |
| | 769 | // figure out how big the file is.\r |
| | 770 | //\r |
| | 771 | FileInfo = NULL;\r |
| | 772 | FileInfoSize = 0;\r |
| | 773 | Status = FileHandle->GetInfo (\r |
| | 774 | FileHandle,\r |
| | 775 | &gEfiFileInfoGuid,\r |
| | 776 | &FileInfoSize,\r |
| | 777 | FileInfo\r |
| | 778 | );\r |
| | 779 | \r |
| | 780 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
| | 781 | FileInfo = AllocatePool (FileInfoSize);\r |
| | 782 | if (FileInfo == NULL) {\r |
| | 783 | Status = EFI_OUT_OF_RESOURCES;\r |
| | 784 | } else {\r |
| | 785 | Status = FileHandle->GetInfo (\r |
| | 786 | FileHandle,\r |
| | 787 | &gEfiFileInfoGuid,\r |
| | 788 | &FileInfoSize,\r |
| | 789 | FileInfo\r |
| | 790 | );\r |
| | 791 | }\r |
| | 792 | }\r |
| | 793 | \r |
| | 794 | if (!EFI_ERROR (Status) && (FileInfo != NULL)) {\r |
| | 795 | //\r |
| | 796 | // Allocate space for the file\r |
| | 797 | //\r |
| | 798 | ImageBuffer = AllocatePool ((UINTN)FileInfo->FileSize);\r |
| | 799 | if (ImageBuffer == NULL) {\r |
| | 800 | Status = EFI_OUT_OF_RESOURCES;\r |
| | 801 | } else {\r |
| | 802 | //\r |
| | 803 | // Read the file into the buffer we allocated\r |
| | 804 | //\r |
| | 805 | ImageBufferSize = (UINTN)FileInfo->FileSize;\r |
| | 806 | Status = FileHandle->Read (FileHandle, &ImageBufferSize, ImageBuffer);\r |
| | 807 | }\r |
| | 808 | }\r |
| | 809 | }\r |
| | 810 | //\r |
| | 811 | // Close the file and Free FileInfo and TempDevicePathNode since we are done\r |
| | 812 | // \r |
| | 813 | if (FileInfo != NULL) {\r |
| | 814 | FreePool (FileInfo);\r |
| | 815 | }\r |
| | 816 | if (FileHandle != NULL) {\r |
| | 817 | FileHandle->Close (FileHandle);\r |
| | 818 | }\r |
| | 819 | FreePool (TempDevicePathNode);\r |
| | 820 | }\r |
| | 821 | }\r |
| | 822 | goto Finish;\r |
| | 823 | }\r |
| | 824 | \r |
| | 825 | //\r |
| | 826 | // Attempt to access the file via LoadFile2 interface\r |
| | 827 | //\r |
| | 828 | if (!BootPolicy) {\r |
| | 829 | DevicePathNode = OrigDevicePathNode;\r |
| | 830 | Status = gBS->LocateDevicePath (&gEfiLoadFile2ProtocolGuid, &DevicePathNode, &Handle);\r |
| | 831 | if (!EFI_ERROR (Status)) {\r |
| | 832 | Status = gBS->HandleProtocol (Handle, &gEfiLoadFile2ProtocolGuid, (VOID**)&LoadFile2);\r |
| | 833 | if (!EFI_ERROR (Status)) {\r |
| | 834 | //\r |
| | 835 | // Call LoadFile2 with the correct buffer size\r |
| | 836 | //\r |
| | 837 | ImageBufferSize = 0;\r |
| | 838 | ImageBuffer = NULL;\r |
| | 839 | Status = LoadFile2->LoadFile (\r |
| | 840 | LoadFile2,\r |
| | 841 | DevicePathNode,\r |
| | 842 | FALSE,\r |
| | 843 | &ImageBufferSize,\r |
| | 844 | ImageBuffer\r |
| | 845 | );\r |
| | 846 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
| | 847 | ImageBuffer = AllocatePool (ImageBufferSize);\r |
| | 848 | if (ImageBuffer == NULL) {\r |
| | 849 | Status = EFI_OUT_OF_RESOURCES;\r |
| | 850 | } else {\r |
| | 851 | Status = LoadFile2->LoadFile (\r |
| | 852 | LoadFile2,\r |
| | 853 | DevicePathNode,\r |
| | 854 | FALSE,\r |
| | 855 | &ImageBufferSize,\r |
| | 856 | ImageBuffer\r |
| | 857 | );\r |
| | 858 | }\r |
| | 859 | }\r |
| | 860 | }\r |
| | 861 | goto Finish;\r |
| | 862 | }\r |
| | 863 | }\r |
| | 864 | \r |
| | 865 | //\r |
| | 866 | // Attempt to access the file via LoadFile interface\r |
| | 867 | //\r |
| | 868 | DevicePathNode = OrigDevicePathNode;\r |
| | 869 | Status = gBS->LocateDevicePath (&gEfiLoadFileProtocolGuid, &DevicePathNode, &Handle);\r |
| | 870 | if (!EFI_ERROR (Status)) {\r |
| | 871 | Status = gBS->HandleProtocol (Handle, &gEfiLoadFileProtocolGuid, (VOID**)&LoadFile);\r |
| | 872 | if (!EFI_ERROR (Status)) {\r |
| | 873 | //\r |
| | 874 | // Call LoadFile with the correct buffer size\r |
| | 875 | //\r |
| | 876 | ImageBufferSize = 0;\r |
| | 877 | ImageBuffer = NULL;\r |
| | 878 | Status = LoadFile->LoadFile (\r |
| | 879 | LoadFile,\r |
| | 880 | DevicePathNode,\r |
| | 881 | BootPolicy,\r |
| | 882 | &ImageBufferSize,\r |
| | 883 | ImageBuffer\r |
| | 884 | );\r |
| | 885 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
| | 886 | ImageBuffer = AllocatePool (ImageBufferSize);\r |
| | 887 | if (ImageBuffer == NULL) {\r |
| | 888 | Status = EFI_OUT_OF_RESOURCES;\r |
| | 889 | } else {\r |
| | 890 | Status = LoadFile->LoadFile (\r |
| | 891 | LoadFile,\r |
| | 892 | DevicePathNode,\r |
| | 893 | BootPolicy,\r |
| | 894 | &ImageBufferSize,\r |
| | 895 | ImageBuffer\r |
| | 896 | );\r |
| | 897 | }\r |
| | 898 | }\r |
| | 899 | }\r |
| | 900 | }\r |
| | 901 | \r |
| | 902 | Finish:\r |
| | 903 | \r |
| | 904 | if (EFI_ERROR (Status)) {\r |
| | 905 | if (ImageBuffer != NULL) {\r |
| | 906 | FreePool (ImageBuffer);\r |
| | 907 | ImageBuffer = NULL;\r |
| | 908 | }\r |
| | 909 | *FileSize = 0;\r |
| | 910 | } else {\r |
| | 911 | *FileSize = ImageBufferSize;\r |
| | 912 | }\r |
| | 913 | \r |
| | 914 | FreePool (OrigDevicePathNode);\r |
| | 915 | \r |
| | 916 | return ImageBuffer;\r |
| | 917 | }\r |
projects / mirror_edk2.git / blame_incremental