projects / mirror_edk2.git / blame
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| 1c280088 | 1 | /** @file\r |
| b75a165d | 2 | MDE DXE Services Library provides functions that simplify the development of DXE Drivers. \r |
| 84716614 | 3 | These functions help access data from sections of FFS files or from file path.\r |
| 1c280088 | 4 | \r |
| 3556c7a2 | 5 | Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r |
| af2dc6a7 | 6 | This program and the accompanying materials are licensed and made available under \r |
| 7 | the terms and conditions of the BSD License that accompanies this distribution. \r | |
| 8 | The full text of the license may be found at\r | |
| 9 | http://opensource.org/licenses/bsd-license.php. \r | |
| 1c280088 | 10 | \r |
| af2dc6a7 | 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 | |
| 1c280088 | 13 | \r |
| 14 | **/\r | |
| 15 | \r | |
| 68167fed | 16 | #ifndef __DXE_SERVICES_LIB_H__\r |
| 17 | #define __DXE_SERVICES_LIB_H__\r | |
| b0d803fe | 18 | \r |
| 682cee4c LG |
19 | /**\r |
| 20 | Searches all the available firmware volumes and returns the first matching FFS section. \r | |
| 21 | \r | |
| 22 | This function searches all the firmware volumes for FFS files with FV file type specified by FileType\r | |
| 23 | The order that the firmware volumes is searched is not deterministic. For each available FV a search \r | |
| 24 | is made for FFS file of type FileType. If the FV contains more than one FFS file with the same FileType, \r | |
| 25 | the FileInstance instance will be the matched FFS file. For each FFS file found a search \r | |
| 26 | is made for FFS sections of type SectionType. If the FFS file contains at least SectionInstance instances \r | |
| 27 | of the FFS section specified by SectionType, then the SectionInstance instance is returned in Buffer. \r | |
| 28 | Buffer is allocated using AllocatePool(), and the size of the allocated buffer is returned in Size. \r | |
| 29 | It is the caller's responsibility to use FreePool() to free the allocated buffer. \r | |
| 30 | See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for details on how sections \r | |
| 31 | are retrieved from an FFS file based on SectionType and SectionInstance.\r | |
| 32 | \r | |
| 33 | If SectionType is EFI_SECTION_TE, and the search with an FFS file fails, \r | |
| 34 | the search will be retried with a section type of EFI_SECTION_PE32.\r | |
| 35 | This function must be called with a TPL <= TPL_NOTIFY.\r | |
| 36 | \r | |
| 37 | If Buffer is NULL, then ASSERT().\r | |
| 38 | If Size is NULL, then ASSERT().\r | |
| 39 | \r | |
| 40 | @param FileType Indicates the FV file type to search for within all available FVs.\r | |
| 41 | @param FileInstance Indicates which file instance within all available FVs specified by FileType.\r | |
| 42 | FileInstance starts from zero.\r | |
| 43 | @param SectionType Indicates the FFS section type to search for within the FFS file \r | |
| 44 | specified by FileType with FileInstance.\r | |
| 45 | @param SectionInstance Indicates which section instance within the FFS file \r | |
| 46 | specified by FileType with FileInstance to retrieve. SectionInstance starts from zero.\r | |
| 47 | @param Buffer On output, a pointer to a callee allocated buffer containing the FFS file section that was found.\r | |
| 48 | Is it the caller's responsibility to free this buffer using FreePool().\r | |
| 49 | @param Size On output, a pointer to the size, in bytes, of Buffer.\r | |
| 50 | \r | |
| 51 | @retval EFI_SUCCESS The specified FFS section was returned.\r | |
| 52 | @retval EFI_NOT_FOUND The specified FFS section could not be found.\r | |
| 53 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve the matching FFS section.\r | |
| 54 | @retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a device error.\r | |
| 55 | @retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the firmware volume that \r | |
| 56 | contains the matching FFS section does not allow reads.\r | |
| 57 | **/\r | |
| 58 | EFI_STATUS\r | |
| 59 | EFIAPI\r | |
| 60 | GetSectionFromAnyFvByFileType (\r | |
| 61 | IN EFI_FV_FILETYPE FileType,\r | |
| 62 | IN UINTN FileInstance,\r | |
| 63 | IN EFI_SECTION_TYPE SectionType,\r | |
| 64 | IN UINTN SectionInstance,\r | |
| 65 | OUT VOID **Buffer,\r | |
| 66 | OUT UINTN *Size\r | |
| 67 | );\r | |
| 68 | \r | |
| b0d803fe | 69 | /**\r |
| 1a2f870c | 70 | Searches all the available firmware volumes and returns the first matching FFS section. \r |
| b75a165d LG |
71 | \r |
| 72 | This function searches all the firmware volumes for FFS files with an FFS filename specified by NameGuid. \r | |
| 1a2f870c | 73 | The order in which the firmware volumes are searched is not deterministic. For each FFS file found, a search \r |
| b75a165d LG |
74 | is made for FFS sections of type SectionType. If the FFS file contains at least SectionInstance instances \r |
| 75 | of the FFS section specified by SectionType, then the SectionInstance instance is returned in Buffer. \r | |
| 76 | Buffer is allocated using AllocatePool(), and the size of the allocated buffer is returned in Size. \r | |
| 77 | It is the caller's responsibility to use FreePool() to free the allocated buffer. \r | |
| 78 | See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for details on how sections \r | |
| 79 | are retrieved from an FFS file based on SectionType and SectionInstance.\r | |
| 80 | \r | |
| 81 | If SectionType is EFI_SECTION_TE, and the search with an FFS file fails, \r | |
| 82 | the search will be retried with a section type of EFI_SECTION_PE32.\r | |
| 83 | This function must be called with a TPL <= TPL_NOTIFY.\r | |
| 84 | \r | |
| 85 | If NameGuid is NULL, then ASSERT().\r | |
| 86 | If Buffer is NULL, then ASSERT().\r | |
| ff197efb | 87 | If Size is NULL, then ASSERT().\r |
| 88 | \r | |
| ff197efb | 89 | \r |
| af2dc6a7 | 90 | @param NameGuid A pointer to to the FFS filename GUID to search for \r |
| 91 | within any of the firmware volumes in the platform. \r | |
| 92 | @param SectionType Indicates the FFS section type to search for within \r | |
| 93 | the FFS file specified by NameGuid.\r | |
| 94 | @param SectionInstance Indicates which section instance within the FFS file \r | |
| 95 | specified by NameGuid to retrieve.\r | |
| 96 | @param Buffer On output, a pointer to a callee-allocated buffer \r | |
| 97 | containing the FFS file section that was found. \r | |
| 98 | It is the caller's responsibility to free this \r | |
| 99 | buffer using FreePool().\r | |
| b75a165d LG |
100 | @param Size On output, a pointer to the size, in bytes, of Buffer.\r |
| 101 | \r | |
| 102 | @retval EFI_SUCCESS The specified FFS section was returned.\r | |
| 103 | @retval EFI_NOT_FOUND The specified FFS section could not be found.\r | |
| af2dc6a7 | 104 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve \r |
| 105 | the matching FFS section.\r | |
| 106 | @retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a \r | |
| 107 | device error.\r | |
| 108 | @retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the \r | |
| 109 | firmware volume that contains the matching FFS \r | |
| 110 | section does not allow reads.\r | |
| f80b0830 | 111 | **/\r |
| b0d803fe | 112 | EFI_STATUS\r |
| 113 | EFIAPI\r | |
| fdbee2e4 | 114 | GetSectionFromAnyFv (\r |
| b0d803fe | 115 | IN CONST EFI_GUID *NameGuid,\r |
| 116 | IN EFI_SECTION_TYPE SectionType,\r | |
| ff197efb | 117 | IN UINTN SectionInstance,\r |
| b0d803fe | 118 | OUT VOID **Buffer,\r |
| 119 | OUT UINTN *Size\r | |
| ed66e1bc | 120 | );\r |
| b0d803fe | 121 | \r |
| 122 | /**\r | |
| b75a165d LG |
123 | Searches the firmware volume that the currently executing module was loaded from and returns the first matching FFS section. \r |
| 124 | \r | |
| 125 | This function searches the firmware volume that the currently executing module was loaded \r | |
| 1a2f870c | 126 | from for an FFS file with an FFS filename specified by NameGuid. If the FFS file is found, a search \r |
| b75a165d LG |
127 | is made for FFS sections of type SectionType. If the FFS file contains at least SectionInstance \r |
| 128 | instances of the FFS section specified by SectionType, then the SectionInstance instance is returned in Buffer.\r | |
| 129 | Buffer is allocated using AllocatePool(), and the size of the allocated buffer is returned in Size. \r | |
| 130 | It is the caller's responsibility to use FreePool() to free the allocated buffer. \r | |
| 131 | See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for details on how sections are retrieved from \r | |
| 132 | an FFS file based on SectionType and SectionInstance.\r | |
| 133 | \r | |
| 134 | If the currently executing module was not loaded from a firmware volume, then EFI_NOT_FOUND is returned.\r | |
| 135 | If SectionType is EFI_SECTION_TE, and the search with an FFS file fails, \r | |
| 136 | the search will be retried with a section type of EFI_SECTION_PE32.\r | |
| 137 | \r | |
| 138 | This function must be called with a TPL <= TPL_NOTIFY.\r | |
| 139 | If NameGuid is NULL, then ASSERT().\r | |
| 140 | If Buffer is NULL, then ASSERT().\r | |
| ff197efb | 141 | If Size is NULL, then ASSERT().\r |
| 142 | \r | |
| af2dc6a7 | 143 | @param NameGuid A pointer to to the FFS filename GUID to search for \r |
| 144 | within the firmware volumes that the currently \r | |
| 145 | executing module was loaded from.\r | |
| 146 | @param SectionType Indicates the FFS section type to search for within \r | |
| 147 | the FFS file specified by NameGuid.\r | |
| 148 | @param SectionInstance Indicates which section instance within the FFS \r | |
| 149 | file specified by NameGuid to retrieve.\r | |
| 150 | @param Buffer On output, a pointer to a callee allocated buffer \r | |
| 151 | containing the FFS file section that was found. \r | |
| 152 | It is the caller's responsibility to free this buffer \r | |
| 153 | using FreePool().\r | |
| b75a165d LG |
154 | @param Size On output, a pointer to the size, in bytes, of Buffer.\r |
| 155 | \r | |
| 156 | \r | |
| 157 | @retval EFI_SUCCESS The specified FFS section was returned.\r | |
| 158 | @retval EFI_NOT_FOUND The specified FFS section could not be found.\r | |
| af2dc6a7 | 159 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve \r |
| 160 | the matching FFS section.\r | |
| 161 | @retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a \r | |
| 162 | device error.\r | |
| 163 | @retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the \r | |
| 164 | firmware volume that contains the matching FFS \r | |
| 165 | section does not allow reads. \r | |
| f80b0830 | 166 | **/\r |
| b0d803fe | 167 | EFI_STATUS\r |
| 168 | EFIAPI\r | |
| fdbee2e4 | 169 | GetSectionFromFv (\r |
| b0d803fe | 170 | IN CONST EFI_GUID *NameGuid,\r |
| 171 | IN EFI_SECTION_TYPE SectionType,\r | |
| ff197efb | 172 | IN UINTN SectionInstance,\r |
| b0d803fe | 173 | OUT VOID **Buffer,\r |
| 174 | OUT UINTN *Size\r | |
| ed66e1bc | 175 | );\r |
| b0d803fe | 176 | \r |
| 177 | \r | |
| 178 | /**\r | |
| b75a165d LG |
179 | Searches the FFS file the the currently executing module was loaded from and returns the first matching FFS section.\r |
| 180 | \r | |
| 181 | This function searches the FFS file that the currently executing module was loaded from for a FFS sections of type SectionType.\r | |
| 182 | If the FFS file contains at least SectionInstance instances of the FFS section specified by SectionType, \r | |
| 183 | then the SectionInstance instance is returned in Buffer. Buffer is allocated using AllocatePool(), \r | |
| 184 | and the size of the allocated buffer is returned in Size. It is the caller's responsibility \r | |
| 185 | to use FreePool() to free the allocated buffer. See EFI_FIRMWARE_VOLUME2_PROTOCOL.ReadSection() for \r | |
| 186 | details on how sections are retrieved from an FFS file based on SectionType and SectionInstance.\r | |
| 187 | \r | |
| 188 | If the currently executing module was not loaded from an FFS file, then EFI_NOT_FOUND is returned.\r | |
| 189 | If SectionType is EFI_SECTION_TE, and the search with an FFS file fails, \r | |
| 190 | the search will be retried with a section type of EFI_SECTION_PE32.\r | |
| 191 | This function must be called with a TPL <= TPL_NOTIFY.\r | |
| 192 | \r | |
| 193 | If Buffer is NULL, then ASSERT().\r | |
| ff197efb | 194 | If Size is NULL, then ASSERT().\r |
| 195 | \r | |
| b75a165d | 196 | \r |
| af2dc6a7 | 197 | @param SectionType Indicates the FFS section type to search for within \r |
| 198 | the FFS file that the currently executing module \r | |
| 199 | was loaded from.\r | |
| 200 | @param SectionInstance Indicates which section instance to retrieve within \r | |
| 201 | the FFS file that the currently executing module \r | |
| 202 | was loaded from.\r | |
| 203 | @param Buffer On output, a pointer to a callee allocated buffer \r | |
| 204 | containing the FFS file section that was found. \r | |
| 205 | It is the caller's responsibility to free this buffer \r | |
| 206 | using FreePool().\r | |
| b75a165d LG |
207 | @param Size On output, a pointer to the size, in bytes, of Buffer.\r |
| 208 | \r | |
| 209 | @retval EFI_SUCCESS The specified FFS section was returned.\r | |
| 210 | @retval EFI_NOT_FOUND The specified FFS section could not be found.\r | |
| af2dc6a7 | 211 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to retrieve \r |
| 212 | the matching FFS section.\r | |
| 213 | @retval EFI_DEVICE_ERROR The FFS section could not be retrieves due to a \r | |
| 214 | device error.\r | |
| 215 | @retval EFI_ACCESS_DENIED The FFS section could not be retrieves because the \r | |
| 216 | firmware volume that contains the matching FFS \r | |
| 217 | section does not allow reads. \r | |
| b0d803fe | 218 | \r |
| f80b0830 | 219 | **/\r |
| b0d803fe | 220 | EFI_STATUS\r |
| 221 | EFIAPI\r | |
| fdbee2e4 | 222 | GetSectionFromFfs (\r |
| b0d803fe | 223 | IN EFI_SECTION_TYPE SectionType,\r |
| ff197efb | 224 | IN UINTN SectionInstance,\r |
| b0d803fe | 225 | OUT VOID **Buffer,\r |
| 226 | OUT UINTN *Size\r | |
| ed66e1bc | 227 | );\r |
| 1c280088 | 228 | \r |
| 84716614 LG |
229 | \r |
| 230 | /**\r | |
| 231 | Get the image file buffer data and buffer size by its device path. \r | |
| 232 | \r | |
| 233 | Access the file either from a firmware volume, from a file system interface, \r | |
| 234 | or from the load file interface.\r | |
| 235 | \r | |
| 236 | Allocate memory to store the found image. The caller is responsible to free memory.\r | |
| 237 | \r | |
| 3556c7a2 | 238 | If FilePath is NULL, then NULL is returned.\r |
| 84716614 LG |
239 | If FileSize is NULL, then NULL is returned.\r |
| 240 | If AuthenticationStatus is NULL, then NULL is returned.\r | |
| 241 | \r | |
| af2dc6a7 | 242 | @param[in] BootPolicy The policy for Open Image File.If TRUE, \r |
| 243 | indicates that the request originates from \r | |
| 244 | the boot manager, and that the boot manager is\r | |
| 245 | attempting to load FilePath as a boot selection. \r | |
| 246 | If FALSE, then FilePath must match an exact \r | |
| 247 | file to be loaded.\r | |
| 248 | @param[in] FilePath Pointer to the device path of the file that is abstracted to\r | |
| ea6898b9 | 249 | the file buffer.\r |
| 250 | @param[out] FileSize Pointer to the size of the abstracted file buffer.\r | |
| 3556c7a2 | 251 | @param[out] AuthenticationStatus Pointer to the authentication status.\r |
| 84716614 | 252 | \r |
| 3556c7a2 | 253 | @retval NULL FilePath is NULL, or FileSize is NULL, or AuthenticationStatus is NULL, or the file can't be found.\r |
| 84716614 LG |
254 | @retval other The abstracted file buffer. The caller is responsible to free memory.\r |
| 255 | **/\r | |
| 256 | VOID *\r | |
| 257 | EFIAPI\r | |
| 258 | GetFileBufferByFilePath (\r | |
| 259 | IN BOOLEAN BootPolicy,\r | |
| 260 | IN CONST EFI_DEVICE_PATH_PROTOCOL *FilePath,\r | |
| 261 | OUT UINTN *FileSize,\r | |
| 262 | OUT UINT32 *AuthenticationStatus\r | |
| 263 | );\r | |
| 264 | \r | |
| 1c280088 | 265 | #endif\r |
| 266 | \r |