| a405b86d |
1 | /** @file\r |
| 2 | Provides interface to shell internal functions for shell commands.\r |
| 3 | \r |
| 4 | This library is for use ONLY by shell commands linked into the shell application.\r |
| 5 | This library will not funciton if it is used for UEFI Shell 2.0 Applications.\r |
| 6 | \r |
| 7 | Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r |
| 8 | This program and the accompanying materials\r |
| 9 | are licensed and made available under the terms and conditions of the BSD License\r |
| 10 | which accompanies this distribution. The full text of the license may be found at\r |
| 11 | http://opensource.org/licenses/bsd-license.php.\r |
| 12 | \r |
| 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 15 | \r |
| 16 | **/\r |
| 17 | \r |
| 18 | #ifndef _SHELL_COMMAND_LIB_\r |
| 19 | #define _SHELL_COMMAND_LIB_\r |
| 20 | \r |
| 21 | #include <Uefi.h>\r |
| 22 | #include <ShellBase.h>\r |
| 23 | \r |
| 24 | #include <Protocol/EfiShell.h>\r |
| 25 | #include <Protocol/EfiShellParameters.h>\r |
| 26 | #include <Protocol/UnicodeCollation.h>\r |
| 27 | #include <Protocol/DevicePathToText.h>\r |
| 28 | #include <Protocol/SimpleFileSystem.h>\r |
| 29 | \r |
| 30 | #include <Library/UefiBootServicesTableLib.h>\r |
| 31 | \r |
| 32 | //\r |
| 33 | // The extern global protocol poionters.\r |
| 34 | //\r |
| 35 | extern EFI_SHELL_PROTOCOL *gEfiShellProtocol;\r |
| 36 | extern EFI_SHELL_PARAMETERS_PROTOCOL *gEfiShellParametersProtocol;\r |
| 37 | extern EFI_UNICODE_COLLATION_PROTOCOL *gUnicodeCollation;\r |
| 38 | extern EFI_DEVICE_PATH_TO_TEXT_PROTOCOL *gDevPathToText;\r |
| 39 | extern CONST CHAR16* SupportLevel[];\r |
| 40 | \r |
| 41 | //\r |
| 42 | // The map list objects.\r |
| 43 | //\r |
| 44 | typedef struct {\r |
| 45 | LIST_ENTRY Link;\r |
| 46 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 47 | CHAR16 *MapName;\r |
| 48 | CHAR16 *CurrentDirectoryPath;\r |
| 49 | UINT64 Flags;\r |
| 50 | } SHELL_MAP_LIST;\r |
| 51 | /// List of Mappings - DeviceName and Drive Letter(ism).\r |
| 52 | extern SHELL_MAP_LIST gShellMapList;\r |
| 53 | /// Pointer to node of current directory in the mMapList.\r |
| 54 | extern SHELL_MAP_LIST *gShellCurDir;\r |
| 55 | \r |
| 56 | /**\r |
| 57 | Returns the help MAN fileName for a given shell command.\r |
| 58 | \r |
| 59 | @retval !NULL The unicode string of the MAN filename.\r |
| 60 | @retval NULL An error ocurred.\r |
| 61 | \r |
| 62 | **/\r |
| 63 | typedef\r |
| 64 | CONST CHAR16 *\r |
| 65 | (EFIAPI *SHELL_GET_MAN_FILENAME)(\r |
| 66 | VOID\r |
| 67 | );\r |
| 68 | \r |
| 69 | /**\r |
| 70 | Runs a shell command on a given command line.\r |
| 71 | \r |
| 72 | The specific operation of a given shell command is specified in the UEFI Shell\r |
| 73 | Specification 2.0, or in the source of the given command.\r |
| 74 | \r |
| 75 | Upon completion of the command run the shell protocol and environment variables\r |
| 76 | may have been updated due to the operation.\r |
| 77 | \r |
| 78 | @param[in] ImageHandle The ImageHandle to the app, or NULL if\r |
| 79 | the command built into shell.\r |
| 80 | @param[in] SystemTable The pointer to the system table.\r |
| 81 | \r |
| 82 | @retval RETURN_SUCCESS The shell command was sucessful.\r |
| 83 | @retval RETURN_UNSUPPORTED The command is not supported.\r |
| 84 | **/\r |
| 85 | typedef\r |
| 86 | SHELL_STATUS\r |
| 87 | (EFIAPI *SHELL_RUN_COMMAND)(\r |
| 88 | IN EFI_HANDLE ImageHandle,\r |
| 89 | IN EFI_SYSTEM_TABLE *SystemTable\r |
| 90 | );\r |
| 91 | \r |
| 92 | /**\r |
| 93 | Registers the handlers of type SHELL_RUN_COMMAND and\r |
| 94 | SHELL_GET_MAN_FILENAME for each shell command.\r |
| 95 | \r |
| 96 | If the ShellSupportLevel is greater than the value of\r |
| 97 | PcdShellSupportLevel, then return RETURN_UNSUPPORTED.\r |
| 98 | \r |
| 99 | Registers the the handlers specified by GetHelpInfoHandler and CommandHandler\r |
| 100 | with the command specified by CommandString. If the command named by\r |
| 101 | CommandString has already been registered, then return\r |
| 102 | RETURN_ALREADY_STARTED.\r |
| 103 | \r |
| 104 | If there are not enough resources available to register the handlers, then\r |
| 105 | RETURN_OUT_OF_RESOURCES is returned.\r |
| 106 | \r |
| 107 | If CommandString is NULL, then ASSERT().\r |
| 108 | If GetHelpInfoHandler is NULL, then ASSERT().\r |
| 109 | If CommandHandler is NULL, then ASSERT().\r |
| 110 | If ProfileName is NULL, then ASSERT().\r |
| 111 | \r |
| 112 | @param[in] CommandString The pointer to the command name. This is the\r |
| 113 | name to look for on the command line in\r |
| 114 | the shell.\r |
| 115 | @param[in] CommandHandler The pointer to a function that runs the\r |
| 116 | specified command.\r |
| 117 | @param[in] GetManFileName The pointer to a function that provides man\r |
| 118 | filename.\r |
| 119 | @param[in] ShellMinSupportLevel The minimum Shell Support Level which has this\r |
| 120 | function.\r |
| 121 | @param[in] ProfileName The profile name to require for support of this\r |
| 122 | function.\r |
| 123 | @param[in] CanAffectLE Indicates whether this command's return value\r |
| 124 | can change the LASTERROR environment variable.\r |
| 125 | @param[in] HiiHandle The handle of this command's HII entry.\r |
| 126 | @param[in] ManFormatHelp The HII locator for the help text.\r |
| 127 | \r |
| 128 | @retval RETURN_SUCCESS The handlers were registered.\r |
| 129 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources available to\r |
| 130 | register the shell command.\r |
| 131 | @retval RETURN_UNSUPPORTED The ShellMinSupportLevel was higher than the\r |
| 132 | currently allowed support level.\r |
| 133 | @retval RETURN_ALREADY_STARTED The CommandString represents a command that\r |
| 134 | is already registered. Only one handler set for\r |
| 135 | a given command is allowed.\r |
| 136 | @sa SHELL_GET_MAN_FILENAME\r |
| 137 | @sa SHELL_RUN_COMMAND\r |
| 138 | **/\r |
| 139 | RETURN_STATUS\r |
| 140 | EFIAPI\r |
| 141 | ShellCommandRegisterCommandName (\r |
| 142 | IN CONST CHAR16 *CommandString,\r |
| 143 | IN SHELL_RUN_COMMAND CommandHandler,\r |
| 144 | IN SHELL_GET_MAN_FILENAME GetManFileName,\r |
| 145 | IN UINT32 ShellMinSupportLevel,\r |
| 146 | IN CONST CHAR16 *ProfileName,\r |
| 147 | IN CONST BOOLEAN CanAffectLE,\r |
| 148 | IN CONST EFI_HANDLE HiiHandle,\r |
| 149 | IN CONST EFI_STRING_ID ManFormatHelp\r |
| 150 | );\r |
| 151 | \r |
| 152 | /**\r |
| 153 | Checks if a command string has been registered for CommandString, and if so, it runs\r |
| 154 | the previously registered handler for that command with the command line.\r |
| 155 | \r |
| 156 | If CommandString is NULL, then ASSERT().\r |
| 157 | \r |
| 158 | If Sections is specified, then each section name listed will be compared in a case sensitive\r |
| 159 | manner to the section names described in Appendix B UEFI Shell 2.0 Specification. If the section exists,\r |
| 160 | it is appended to the returned help text. If the section does not exist, no\r |
| 161 | information is returned. If Sections is NULL, then all help text information\r |
| 162 | available is returned.\r |
| 163 | \r |
| 164 | @param[in] CommandString The pointer to the command name. This is the name\r |
| 165 | found on the command line in the shell.\r |
| 166 | @param[in,out] RetVal The pointer to the return value from the command handler.\r |
| 167 | \r |
| 168 | @param[in,out] CanAffectLE Indicates whether this command's return value\r |
| 169 | needs to be placed into LASTERROR environment variable.\r |
| 170 | \r |
| 171 | @retval RETURN_SUCCESS The handler was run.\r |
| 172 | @retval RETURN_NOT_FOUND The CommandString did not match a registered\r |
| 173 | command name.\r |
| 174 | @sa SHELL_RUN_COMMAND\r |
| 175 | **/\r |
| 176 | RETURN_STATUS\r |
| 177 | EFIAPI\r |
| 178 | ShellCommandRunCommandHandler (\r |
| 179 | IN CONST CHAR16 *CommandString,\r |
| 180 | IN OUT SHELL_STATUS *RetVal,\r |
| 181 | IN OUT BOOLEAN *CanAffectLE OPTIONAL\r |
| 182 | );\r |
| 183 | \r |
| 184 | /**\r |
| 185 | Checks if a command string has been registered for CommandString, and if so, it\r |
| 186 | returns the MAN filename specified for that command.\r |
| 187 | \r |
| 188 | If CommandString is NULL, then ASSERT().\r |
| 189 | \r |
| 190 | @param[in] CommandString The pointer to the command name. This is the name\r |
| 191 | found on the command line in the shell.\r |
| 192 | \r |
| 193 | @retval NULL The CommandString was not a registered command.\r |
| 194 | @retval other The name of the MAN file.\r |
| 195 | @sa SHELL_GET_MAN_FILENAME\r |
| 196 | **/\r |
| 197 | CONST CHAR16*\r |
| 198 | EFIAPI\r |
| 199 | ShellCommandGetManFileNameHandler (\r |
| 200 | IN CONST CHAR16 *CommandString\r |
| 201 | );\r |
| 202 | \r |
| 203 | \r |
| 204 | typedef struct {\r |
| 205 | LIST_ENTRY Link;\r |
| 206 | CHAR16 *CommandString;\r |
| 207 | } COMMAND_LIST;\r |
| 208 | \r |
| 209 | /**\r |
| 210 | Get the list of all available shell internal commands. This is a linked list,\r |
| 211 | via the LIST_ENTRY structure. Enumerate through it using the BaseLib linked\r |
| 212 | list functions. Do not modify the values.\r |
| 213 | \r |
| 214 | @return A linked list of all available shell commands.\r |
| 215 | **/\r |
| 216 | CONST COMMAND_LIST*\r |
| 217 | EFIAPI\r |
| 218 | ShellCommandGetCommandList (\r |
| 219 | VOID\r |
| 220 | );\r |
| 221 | \r |
| 222 | typedef struct {\r |
| 223 | LIST_ENTRY Link;\r |
| 224 | CHAR16 *CommandString;\r |
| 225 | CHAR16 *Alias;\r |
| 226 | } ALIAS_LIST;\r |
| 227 | \r |
| 228 | /**\r |
| 229 | Registers aliases to be set as part of the initialization of the shell application.\r |
| 230 | \r |
| 231 | If Command is NULL, then ASSERT().\r |
| 232 | If Alias is NULL, then ASSERT().\r |
| 233 | \r |
| 234 | @param[in] Command The pointer to the Command.\r |
| 235 | @param[in] Alias The pointer to Alias.\r |
| 236 | \r |
| 237 | @retval RETURN_SUCCESS The handlers were registered.\r |
| 238 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources available to\r |
| 239 | register the shell command.\r |
| 240 | **/\r |
| 241 | RETURN_STATUS\r |
| 242 | EFIAPI\r |
| 243 | ShellCommandRegisterAlias (\r |
| 244 | IN CONST CHAR16 *Command,\r |
| 245 | IN CONST CHAR16 *Alias\r |
| 246 | );\r |
| 247 | \r |
| 248 | /**\r |
| 249 | Get the list of all shell alias commands. This is a linked list,\r |
| 250 | via LIST_ENTRY structure. Enumerate through it using the BaseLib linked\r |
| 251 | list functions. Do not modify the values.\r |
| 252 | \r |
| 253 | @return A linked list of all requested shell aliases.\r |
| 254 | **/\r |
| 255 | CONST ALIAS_LIST*\r |
| 256 | EFIAPI\r |
| 257 | ShellCommandGetInitAliasList (\r |
| 258 | VOID\r |
| 259 | );\r |
| 260 | \r |
| 261 | /**\r |
| 262 | Determine if a given alias is on the list of built in aliases.\r |
| 263 | \r |
| 264 | @param[in] Alias The alias to test for.\r |
| 265 | \r |
| 266 | @retval TRUE The alias is a built in alias.\r |
| 267 | @retval FALSE The alias is not a built in alias.\r |
| 268 | **/\r |
| 269 | BOOLEAN\r |
| 270 | EFIAPI\r |
| 271 | ShellCommandIsOnAliasList (\r |
| 272 | IN CONST CHAR16 *Alias\r |
| 273 | );\r |
| 274 | \r |
| 275 | /**\r |
| 276 | Checks if a command is already on the list.\r |
| 277 | \r |
| 278 | @param[in] CommandString The command string to check for on the list.\r |
| 279 | \r |
| 280 | @retval TRUE CommandString represents a registered command.\r |
| 281 | @retval FALSE CommandString does not represent a registered command.\r |
| 282 | **/\r |
| 283 | BOOLEAN\r |
| 284 | EFIAPI\r |
| 285 | ShellCommandIsCommandOnList (\r |
| 286 | IN CONST CHAR16 *CommandString\r |
| 287 | );\r |
| 288 | \r |
| 289 | /**\r |
| 290 | Get the help text for a command.\r |
| 291 | \r |
| 292 | @param[in] CommandString The command name.\r |
| 293 | \r |
| 294 | @retval NULL No help text was found.\r |
| 295 | @return The string of the help text. The caller required to free.\r |
| 296 | **/\r |
| 297 | CHAR16*\r |
| 298 | EFIAPI\r |
| 299 | ShellCommandGetCommandHelp (\r |
| 300 | IN CONST CHAR16 *CommandString\r |
| 301 | );\r |
| 302 | \r |
| 303 | /**\r |
| 304 | Function to make sure that the above pointers are valid.\r |
| 305 | **/\r |
| 306 | EFI_STATUS\r |
| 307 | EFIAPI\r |
| 308 | CommandInit (\r |
| 309 | VOID\r |
| 310 | );\r |
| 311 | \r |
| 312 | /**\r |
| 313 | Function to determine current state of ECHO. Echo determines if lines from scripts\r |
| 314 | and ECHO commands are enabled.\r |
| 315 | \r |
| 316 | @retval TRUE Echo is currently enabled.\r |
| 317 | @retval FALSE Echo is currently disabled.\r |
| 318 | **/\r |
| 319 | BOOLEAN\r |
| 320 | EFIAPI\r |
| 321 | ShellCommandGetEchoState (\r |
| 322 | VOID\r |
| 323 | );\r |
| 324 | \r |
| 325 | /**\r |
| 326 | Function to set current state of ECHO. Echo determines if lines from scripts\r |
| 327 | and ECHO commands are enabled.\r |
| 328 | \r |
| 329 | @param[in] State TRUE to enable Echo, FALSE otherwise.\r |
| 330 | **/\r |
| 331 | VOID\r |
| 332 | EFIAPI\r |
| 333 | ShellCommandSetEchoState (\r |
| 334 | IN BOOLEAN State\r |
| 335 | );\r |
| 336 | \r |
| 337 | \r |
| 338 | \r |
| 339 | /**\r |
| 340 | Indicate that the current shell or script should exit.\r |
| 341 | \r |
| 342 | @param[in] ScriptOnly TRUE if exiting a script; FALSE otherwise.\r |
| 343 | **/\r |
| 344 | VOID\r |
| 345 | EFIAPI\r |
| 346 | ShellCommandRegisterExit (\r |
| 347 | IN BOOLEAN ScriptOnly\r |
| 348 | );\r |
| 349 | \r |
| 350 | /**\r |
| 351 | Retrieve the Exit indicator.\r |
| 352 | \r |
| 353 | @retval TRUE Exit was indicated.\r |
| 354 | @retval FALSE Exit was not indicated.\r |
| 355 | **/\r |
| 356 | BOOLEAN\r |
| 357 | EFIAPI\r |
| 358 | ShellCommandGetExit (\r |
| 359 | VOID\r |
| 360 | );\r |
| 361 | \r |
| 362 | /**\r |
| 363 | Retrieve the Exit script indicator.\r |
| 364 | \r |
| 365 | If ShellCommandGetExit returns FALSE, then the return from this is undefined.\r |
| 366 | \r |
| 367 | @retval TRUE ScriptOnly was indicated.\r |
| 368 | @retval FALSE ScriptOnly was not indicated.\r |
| 369 | **/\r |
| 370 | BOOLEAN\r |
| 371 | EFIAPI\r |
| 372 | ShellCommandGetScriptExit (\r |
| 373 | VOID\r |
| 374 | );\r |
| 375 | \r |
| 376 | typedef struct {\r |
| 377 | LIST_ENTRY Link; ///< List enumerator items.\r |
| 378 | UINTN Line; ///< What line of the script file this was on.\r |
| 379 | CHAR16 *Cl; ///< The original command line.\r |
| 380 | VOID *Data; ///< The data structure format dependant upon Command. (not always used)\r |
| 381 | BOOLEAN Reset; ///< Reset the command (it must be treated like a initial run (but it may have data already))\r |
| 382 | } SCRIPT_COMMAND_LIST;\r |
| 383 | \r |
| 384 | typedef struct {\r |
| 385 | CHAR16 *ScriptName; ///< The filename of this script.\r |
| 386 | CHAR16 **Argv; ///< The parmameters to the script file.\r |
| 387 | UINTN Argc; ///< The count of parameters.\r |
| 388 | LIST_ENTRY CommandList; ///< The script converted to a list of commands (SCRIPT_COMMAND_LIST objects).\r |
| 389 | SCRIPT_COMMAND_LIST *CurrentCommand; ///< The command currently being operated. If !=NULL must be a member of CommandList.\r |
| 390 | LIST_ENTRY SubstList; ///< A list of current script loop alias' (ALIAS_LIST objects) (Used for the for %-based replacement).\r |
| 391 | } SCRIPT_FILE;\r |
| 392 | \r |
| 393 | /**\r |
| 394 | Function to return a pointer to the currently running script file object.\r |
| 395 | \r |
| 396 | @retval NULL A script file is not currently running.\r |
| 397 | @return A pointer to the current script file object.\r |
| 398 | **/\r |
| 399 | SCRIPT_FILE*\r |
| 400 | EFIAPI\r |
| 401 | ShellCommandGetCurrentScriptFile (\r |
| 402 | VOID\r |
| 403 | );\r |
| 404 | \r |
| 405 | /**\r |
| 406 | Function to set a new script as the currently running one.\r |
| 407 | \r |
| 408 | This function will correctly stack and unstack nested scripts.\r |
| 409 | \r |
| 410 | @param[in] Script The pointer to new script information structure. If NULL,\r |
| 411 | it removes and de-allocates the topmost Script structure.\r |
| 412 | \r |
| 413 | @return A pointer to the current running script file after this\r |
| 414 | change. It is NULL if removing the final script.\r |
| 415 | **/\r |
| 416 | SCRIPT_FILE*\r |
| 417 | EFIAPI\r |
| 418 | ShellCommandSetNewScript (\r |
| 419 | IN SCRIPT_FILE *Script OPTIONAL\r |
| 420 | );\r |
| 421 | \r |
| 422 | /**\r |
| 423 | Function to get the current Profile string.\r |
| 424 | \r |
| 425 | This is used to retrieve what profiles were installed.\r |
| 426 | \r |
| 427 | @retval NULL There are no installed profiles.\r |
| 428 | @return A semicolon-delimited list of profiles.\r |
| 429 | **/\r |
| 430 | CONST CHAR16 *\r |
| 431 | EFIAPI\r |
| 432 | ShellCommandGetProfileList (\r |
| 433 | VOID\r |
| 434 | );\r |
| 435 | \r |
| 436 | typedef enum {\r |
| 437 | MappingTypeFileSystem,\r |
| 438 | MappingTypeBlockIo,\r |
| 439 | MappingTypeMax\r |
| 440 | } SHELL_MAPPING_TYPE;\r |
| 441 | \r |
| 442 | /**\r |
| 443 | Function to generate the next default mapping name.\r |
| 444 | \r |
| 445 | If the return value is not NULL then it must be callee freed.\r |
| 446 | \r |
| 447 | @param Type What kind of mapping name to make.\r |
| 448 | \r |
| 449 | @retval NULL a memory allocation failed.\r |
| 450 | @return a new map name string\r |
| 451 | **/\r |
| 452 | CHAR16*\r |
| 453 | EFIAPI\r |
| 454 | ShellCommandCreateNewMappingName(\r |
| 455 | IN CONST SHELL_MAPPING_TYPE Type\r |
| 456 | );\r |
| 457 | \r |
| 458 | /**\r |
| 459 | Function to initialize the table for creating consistent map names.\r |
| 460 | \r |
| 461 | @param[out] Table The pointer to pointer to pointer to DevicePathProtocol object.\r |
| 462 | \r |
| 463 | @retval EFI_SUCCESS The table was created successfully.\r |
| 464 | **/\r |
| 465 | EFI_STATUS\r |
| 466 | EFIAPI\r |
| 467 | ShellCommandConsistMappingInitialize (\r |
| 468 | EFI_DEVICE_PATH_PROTOCOL ***Table\r |
| 469 | );\r |
| 470 | \r |
| 471 | /**\r |
| 472 | Function to uninitialize the table for creating consistent map names.\r |
| 473 | \r |
| 474 | The parameter must have been received from ShellCommandConsistMappingInitialize.\r |
| 475 | \r |
| 476 | @param[out] Table The pointer to pointer to DevicePathProtocol object.\r |
| 477 | \r |
| 478 | @retval EFI_SUCCESS The table was deleted successfully.\r |
| 479 | **/\r |
| 480 | EFI_STATUS\r |
| 481 | EFIAPI\r |
| 482 | ShellCommandConsistMappingUnInitialize (\r |
| 483 | EFI_DEVICE_PATH_PROTOCOL **Table\r |
| 484 | );\r |
| 485 | \r |
| 486 | /**\r |
| 487 | Create a consistent mapped name for the device specified by DevicePath \r |
| 488 | based on the Table.\r |
| 489 | \r |
| 490 | This must be called after ShellCommandConsistMappingInitialize() and \r |
| 491 | before ShellCommandConsistMappingUnInitialize() is called.\r |
| 492 | \r |
| 493 | @param[in] DeviecPath The pointer to the dev path for the device.\r |
| 494 | @param[in] Table The Table of mapping information.\r |
| 495 | \r |
| 496 | @retval NULL A consistent mapped name could not be created.\r |
| 497 | @return A pointer to a string allocated from pool with the device name.\r |
| 498 | **/\r |
| 499 | CHAR16*\r |
| 500 | EFIAPI\r |
| 501 | ShellCommandConsistMappingGenMappingName (\r |
| 502 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r |
| 503 | IN EFI_DEVICE_PATH_PROTOCOL **Table\r |
| 504 | );\r |
| 505 | \r |
| 506 | /**\r |
| 507 | Function to search the list of mappings for the first matching node on the\r |
| 508 | list based on the MapKey.\r |
| 509 | \r |
| 510 | @param[in] MapKey The pointer to the string key to search for in the map.\r |
| 511 | \r |
| 512 | @return the node on the list.\r |
| 513 | **/\r |
| 514 | SHELL_MAP_LIST*\r |
| 515 | EFIAPI\r |
| 516 | ShellCommandFindMapItem (\r |
| 517 | IN CONST CHAR16 *MapKey\r |
| 518 | );\r |
| 519 | \r |
| 520 | /**\r |
| 521 | Function to add a map node to the list of map items and update the "path" environment variable (optionally).\r |
| 522 | \r |
| 523 | If Path is TRUE (during initialization only), the path environment variable will also be updated to include\r |
| 524 | default paths on the new map name...\r |
| 525 | \r |
| 526 | Path should be FALSE when this function is called from the protocol SetMap function.\r |
| 527 | \r |
| 528 | @param[in] Name The human readable mapped name.\r |
| 529 | @param[in] DevicePath The Device Path for this map.\r |
| 530 | @param[in] Flags The Flags attribute for this map item.\r |
| 531 | @param[in] Path TRUE to update path, FALSE to skip this step (should only be TRUE during initialization).\r |
| 532 | \r |
| 533 | @retval EFI_SUCCESS The addition was sucessful.\r |
| 534 | @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r |
| 535 | @retval EFI_INVALID_PARAMETER A parameter was invalid.\r |
| 536 | **/\r |
| 537 | EFI_STATUS\r |
| 538 | EFIAPI\r |
| 539 | ShellCommandAddMapItemAndUpdatePath(\r |
| 540 | IN CONST CHAR16 *Name,\r |
| 541 | IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r |
| 542 | IN CONST UINT64 Flags,\r |
| 543 | IN CONST BOOLEAN Path\r |
| 544 | );\r |
| 545 | \r |
| 546 | /**\r |
| 547 | Creates the default map names for each device path in the system with\r |
| 548 | a protocol depending on the Type.\r |
| 549 | \r |
| 550 | Also sets up the default path environment variable if Type is FileSystem.\r |
| 551 | \r |
| 552 | @retval EFI_SUCCESS All map names were created sucessfully.\r |
| 553 | @retval EFI_NOT_FOUND No protocols were found in the system.\r |
| 554 | @return Error returned from gBS->LocateHandle().\r |
| 555 | \r |
| 556 | @sa LocateHandle\r |
| 557 | **/\r |
| 558 | EFI_STATUS\r |
| 559 | EFIAPI\r |
| 560 | ShellCommandCreateInitialMappingsAndPaths(\r |
| 561 | VOID\r |
| 562 | );\r |
| 563 | \r |
| 564 | /**\r |
| 565 | Function to standardize the directory indicators to \ characters.\r |
| 566 | \r |
| 567 | @param[in,out] Path The pointer to the path string to fix.\r |
| 568 | \r |
| 569 | @retval NULL The operation failed.\r |
| 570 | @return The Path pointer.\r |
| 571 | **/\r |
| 572 | CHAR16*\r |
| 573 | EFIAPI\r |
| 574 | ShellCommandCleanPath (\r |
| 575 | IN OUT CHAR16 *Path\r |
| 576 | );\r |
| 577 | \r |
| 578 | /**\r |
| 579 | Converts a SHELL_FILE_HANDLE to an EFI_FILE_PROTOCOL*.\r |
| 580 | \r |
| 581 | @param[in] Handle The SHELL_FILE_HANDLE to convert.\r |
| 582 | \r |
| 583 | @return a EFI_FILE_PROTOCOL* representing the same file.\r |
| 584 | **/\r |
| 585 | EFI_FILE_PROTOCOL*\r |
| 586 | EFIAPI\r |
| 587 | ConvertShellHandleToEfiFileProtocol(\r |
| 588 | IN CONST SHELL_FILE_HANDLE Handle\r |
| 589 | );\r |
| 590 | \r |
| 591 | /**\r |
| 592 | Remove a SHELL_FILE_HANDLE frmo the list of SHELL_FILE_HANDLES.\r |
| 593 | \r |
| 594 | @param[in] Handle The SHELL_FILE_HANDLE to remove.\r |
| 595 | \r |
| 596 | @retval TRUE The item was removed.\r |
| 597 | @retval FALSE The item was not found.\r |
| 598 | **/\r |
| 599 | BOOLEAN\r |
| 600 | EFIAPI\r |
| 601 | ShellFileHandleRemove(\r |
| 602 | IN CONST SHELL_FILE_HANDLE Handle\r |
| 603 | );\r |
| 604 | \r |
| 605 | /**\r |
| 606 | Converts a EFI_FILE_PROTOCOL* to an SHELL_FILE_HANDLE.\r |
| 607 | \r |
| 608 | @param[in] Handle The pointer to EFI_FILE_PROTOCOL to convert.\r |
| 609 | @param[in] Path The path to the file for verification.\r |
| 610 | \r |
| 611 | @return a SHELL_FILE_HANDLE representing the same file.\r |
| 612 | **/\r |
| 613 | SHELL_FILE_HANDLE\r |
| 614 | EFIAPI\r |
| 615 | ConvertEfiFileProtocolToShellHandle(\r |
| 616 | IN CONST EFI_FILE_PROTOCOL *Handle,\r |
| 617 | IN CONST CHAR16 *Path\r |
| 618 | );\r |
| 619 | \r |
| 620 | /**\r |
| 621 | Find the path that was logged with the specified SHELL_FILE_HANDLE.\r |
| 622 | \r |
| 623 | @param[in] Handle The SHELL_FILE_HANDLE to query on.\r |
| 624 | \r |
| 625 | @return A pointer to the path for the file.\r |
| 626 | **/\r |
| 627 | CONST CHAR16*\r |
| 628 | EFIAPI\r |
| 629 | ShellFileHandleGetPath(\r |
| 630 | IN CONST SHELL_FILE_HANDLE Handle\r |
| 631 | );\r |
| 632 | \r |
| 633 | \r |
| 634 | /**\r |
| 635 | Function to determine if a SHELL_FILE_HANDLE is at the end of the file.\r |
| 636 | \r |
| 637 | This will NOT work on directories.\r |
| 638 | \r |
| 639 | If Handle is NULL, then ASSERT.\r |
| 640 | \r |
| 641 | @param[in] Handle the file handle\r |
| 642 | \r |
| 643 | @retval TRUE the position is at the end of the file\r |
| 644 | @retval FALSE the position is not at the end of the file\r |
| 645 | **/\r |
| 646 | BOOLEAN\r |
| 647 | EFIAPI\r |
| 648 | ShellFileHandleEof(\r |
| 649 | IN SHELL_FILE_HANDLE Handle\r |
| 650 | );\r |
| 651 | \r |
| 652 | /**\r |
| 653 | Function to read a single line from a SHELL_FILE_HANDLE. The \n is not included in the returned\r |
| 654 | buffer. The returned buffer must be callee freed.\r |
| 655 | \r |
| 656 | If the position upon start is 0, then the Ascii Boolean will be set. This should be\r |
| 657 | maintained and not changed for all operations with the same file.\r |
| 658 | \r |
| 659 | @param[in] Handle SHELL_FILE_HANDLE to read from.\r |
| 660 | @param[in,out] Ascii Boolean value for indicating whether the file is\r |
| 661 | Ascii (TRUE) or UCS2 (FALSE).\r |
| 662 | \r |
| 663 | @return The line of text from the file.\r |
| 664 | \r |
| 665 | @sa ShellFileHandleReadLine\r |
| 666 | **/\r |
| 667 | CHAR16*\r |
| 668 | EFIAPI\r |
| 669 | ShellFileHandleReturnLine(\r |
| 670 | IN SHELL_FILE_HANDLE Handle,\r |
| 671 | IN OUT BOOLEAN *Ascii\r |
| 672 | );\r |
| 673 | \r |
| 674 | /**\r |
| 675 | Function to read a single line (up to but not including the \n) from a SHELL_FILE_HANDLE.\r |
| 676 | \r |
| 677 | If the position upon start is 0, then the Ascii Boolean will be set. This should be\r |
| 678 | maintained and not changed for all operations with the same file.\r |
| 679 | \r |
| 680 | @param[in] Handle SHELL_FILE_HANDLE to read from.\r |
| 681 | @param[in,out] Buffer The pointer to buffer to read into.\r |
| 682 | @param[in,out] Size The pointer to number of bytes in Buffer.\r |
| 683 | @param[in] Truncate If the buffer is large enough, this has no effect.\r |
| 684 | If the buffer is is too small and Truncate is TRUE,\r |
| 685 | the line will be truncated.\r |
| 686 | If the buffer is is too small and Truncate is FALSE,\r |
| 687 | then no read will occur.\r |
| 688 | \r |
| 689 | @param[in,out] Ascii Boolean value for indicating whether the file is\r |
| 690 | Ascii (TRUE) or UCS2 (FALSE).\r |
| 691 | \r |
| 692 | @retval EFI_SUCCESS The operation was successful. The line is stored in\r |
| 693 | Buffer.\r |
| 694 | @retval EFI_INVALID_PARAMETER Handle was NULL.\r |
| 695 | @retval EFI_INVALID_PARAMETER Size was NULL.\r |
| 696 | @retval EFI_BUFFER_TOO_SMALL Size was not large enough to store the line.\r |
| 697 | Size was updated to the minimum space required.\r |
| 698 | @sa ShellFileHandleRead\r |
| 699 | **/\r |
| 700 | EFI_STATUS\r |
| 701 | EFIAPI\r |
| 702 | ShellFileHandleReadLine(\r |
| 703 | IN SHELL_FILE_HANDLE Handle,\r |
| 704 | IN OUT CHAR16 *Buffer,\r |
| 705 | IN OUT UINTN *Size,\r |
| 706 | IN BOOLEAN Truncate,\r |
| 707 | IN OUT BOOLEAN *Ascii\r |
| 708 | );\r |
| 709 | \r |
| 710 | typedef struct {\r |
| 711 | LIST_ENTRY Link;\r |
| 712 | void *Buffer;\r |
| 713 | } BUFFER_LIST;\r |
| 714 | \r |
| 715 | /**\r |
| 716 | Frees any BUFFER_LIST defined type.\r |
| 717 | \r |
| 718 | @param[in] List The pointer to the list head.\r |
| 719 | **/\r |
| 720 | VOID\r |
| 721 | EFIAPI\r |
| 722 | FreeBufferList (\r |
| 723 | IN BUFFER_LIST *List\r |
| 724 | );\r |
| 725 | \r |
| 726 | /**\r |
| 727 | Chops off last directory or file entry in a path by changing the last '\' to a CHAR_NULL\r |
| 728 | \r |
| 729 | @param[in,out] PathToReturn The pointer to the path to modify.\r |
| 730 | \r |
| 731 | @retval FALSE No directory was found to chop off.\r |
| 732 | @retval TRUE A directory was chopped off.\r |
| 733 | **/\r |
| 734 | BOOLEAN\r |
| 735 | EFIAPI\r |
| 736 | ChopLastSlash(\r |
| 737 | IN OUT CHAR16 *PathToReturn\r |
| 738 | );\r |
| 739 | \r |
| 740 | /**\r |
| 741 | Function to clean up paths. Removes the following items:\r |
| 742 | single periods in the path (no need for the current directory tag)\r |
| 743 | double periods in the path and removes a single parent directory.\r |
| 744 | \r |
| 745 | This will be done inline and the resultant string may be be 'too big'.\r |
| 746 | \r |
| 747 | @param[in] PathToReturn The pointer to the string containing the path.\r |
| 748 | \r |
| 749 | @return PathToReturn is always returned.\r |
| 750 | **/\r |
| 751 | CHAR16*\r |
| 752 | EFIAPI\r |
| 753 | CleanPath(\r |
| 754 | IN CHAR16 *PathToReturn\r |
| 755 | );\r |
| 756 | \r |
| 757 | #endif //_SHELL_COMMAND_LIB_\r |
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