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94b17fa1 | 1 | /** @file\r |
2 | Provides interface to shell functionality for shell commands and applications.\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2009, Intel Corporation\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <Uefi.h>\r | |
16 | #include <Library/ShellLib.h>\r | |
17 | #include <Library/UefiBootServicesTableLib.h>\r | |
18 | #include <Library/BaseLib.h>\r | |
19 | #include <Library/BaseMemoryLib.h>\r | |
20 | #include <Library/DebugLib.h>\r | |
21 | #include <Library/MemoryAllocationLib.h>\r | |
22 | #include <Library/DevicePathLib.h>\r | |
d2b4564b | 23 | #include <Library/PcdLib.h>\r |
24 | #include <Library/FileHandleLib.h>\r | |
b1f95a06 | 25 | #include <Library/PrintLib.h>\r |
26 | #include <Library/UefiLib.h>\r | |
27 | \r | |
94b17fa1 | 28 | #include <Protocol/EfiShellEnvironment2.h>\r |
29 | #include <Protocol/EfiShellInterface.h>\r | |
30 | #include <Protocol/EfiShell.h>\r | |
31 | #include <Protocol/EfiShellParameters.h>\r | |
32 | #include <Protocol/SimpleFileSystem.h>\r | |
33 | \r | |
b1f95a06 | 34 | #include "UefiShellLib.h"\r |
d2b4564b | 35 | \r |
94b17fa1 | 36 | #define MAX_FILE_NAME_LEN 522 // (20 * (6+5+2))+1) unicode characters from EFI FAT spec (doubled for bytes)\r |
37 | #define FIND_XXXXX_FILE_BUFFER_SIZE (SIZE_OF_EFI_FILE_INFO + MAX_FILE_NAME_LEN)\r | |
38 | \r | |
d2b4564b | 39 | //\r |
40 | // This is not static since it's extern in the .h file\r | |
41 | //\r | |
42 | SHELL_PARAM_ITEM EmptyParamList[] = {\r | |
43 | {NULL, TypeMax}\r | |
44 | };\r | |
45 | \r | |
46 | //\r | |
47 | // Static file globals for the shell library\r | |
48 | //\r | |
49 | STATIC EFI_SHELL_ENVIRONMENT2 *mEfiShellEnvironment2;\r | |
50 | STATIC EFI_SHELL_INTERFACE *mEfiShellInterface;\r | |
51 | STATIC EFI_SHELL_PROTOCOL *mEfiShellProtocol;\r | |
52 | STATIC EFI_SHELL_PARAMETERS_PROTOCOL *mEfiShellParametersProtocol;\r | |
53 | STATIC EFI_HANDLE mEfiShellEnvironment2Handle;\r | |
54 | STATIC FILE_HANDLE_FUNCTION_MAP FileFunctionMap;\r | |
94b17fa1 | 55 | \r |
56 | /**\r | |
57 | helper function to find ShellEnvironment2 for constructor\r | |
58 | **/\r | |
59 | EFI_STATUS\r | |
60 | EFIAPI\r | |
61 | ShellFindSE2 (\r | |
62 | IN EFI_HANDLE ImageHandle\r | |
63 | )\r | |
64 | {\r | |
65 | EFI_STATUS Status;\r | |
66 | EFI_HANDLE *Buffer;\r | |
67 | UINTN BufferSize;\r | |
68 | UINTN HandleIndex;\r | |
69 | \r | |
70 | BufferSize = 0;\r | |
71 | Buffer = NULL;\r | |
72 | Status = gBS->OpenProtocol(ImageHandle, \r | |
73 | &gEfiShellEnvironment2Guid,\r | |
74 | (VOID **)&mEfiShellEnvironment2,\r | |
75 | ImageHandle,\r | |
76 | NULL,\r | |
77 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
78 | );\r | |
79 | //\r | |
80 | // look for the mEfiShellEnvironment2 protocol at a higher level\r | |
81 | //\r | |
82 | if (EFI_ERROR (Status) || !(CompareGuid (&mEfiShellEnvironment2->SESGuid, &gEfiShellEnvironment2ExtGuid) != FALSE &&\r | |
83 | (mEfiShellEnvironment2->MajorVersion > EFI_SHELL_MAJOR_VER ||\r | |
84 | (mEfiShellEnvironment2->MajorVersion == EFI_SHELL_MAJOR_VER && mEfiShellEnvironment2->MinorVersion >= EFI_SHELL_MINOR_VER)))) {\r | |
85 | //\r | |
86 | // figure out how big of a buffer we need.\r | |
87 | //\r | |
88 | Status = gBS->LocateHandle (ByProtocol,\r | |
89 | &gEfiShellEnvironment2Guid,\r | |
90 | NULL, // ignored for ByProtocol\r | |
91 | &BufferSize,\r | |
92 | Buffer\r | |
93 | );\r | |
94 | ASSERT(Status == EFI_BUFFER_TOO_SMALL);\r | |
95 | Buffer = (EFI_HANDLE*)AllocatePool(BufferSize);\r | |
96 | ASSERT(Buffer != NULL);\r | |
97 | Status = gBS->LocateHandle (ByProtocol,\r | |
98 | &gEfiShellEnvironment2Guid,\r | |
99 | NULL, // ignored for ByProtocol\r | |
100 | &BufferSize,\r | |
101 | Buffer\r | |
102 | );\r | |
103 | if (!EFI_ERROR (Status)) {\r | |
104 | //\r | |
105 | // now parse the list of returned handles\r | |
106 | //\r | |
107 | Status = EFI_NOT_FOUND;\r | |
108 | for (HandleIndex = 0; HandleIndex < (BufferSize/sizeof(Buffer[0])); HandleIndex++) {\r | |
109 | Status = gBS->OpenProtocol(Buffer[HandleIndex], \r | |
110 | &gEfiShellEnvironment2Guid,\r | |
111 | (VOID **)&mEfiShellEnvironment2,\r | |
112 | ImageHandle,\r | |
113 | NULL,\r | |
114 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
115 | );\r | |
116 | if (CompareGuid (&mEfiShellEnvironment2->SESGuid, &gEfiShellEnvironment2ExtGuid) != FALSE &&\r | |
117 | (mEfiShellEnvironment2->MajorVersion > EFI_SHELL_MAJOR_VER ||\r | |
118 | (mEfiShellEnvironment2->MajorVersion == EFI_SHELL_MAJOR_VER && mEfiShellEnvironment2->MinorVersion >= EFI_SHELL_MINOR_VER))) {\r | |
119 | mEfiShellEnvironment2Handle = Buffer[HandleIndex];\r | |
120 | Status = EFI_SUCCESS;\r | |
121 | break;\r | |
122 | }\r | |
123 | }\r | |
124 | }\r | |
125 | }\r | |
126 | if (Buffer != NULL) {\r | |
127 | FreePool (Buffer);\r | |
128 | }\r | |
129 | return (Status);\r | |
130 | }\r | |
131 | \r | |
94b17fa1 | 132 | EFI_STATUS\r |
133 | EFIAPI\r | |
d2b4564b | 134 | ShellLibConstructorWorker (\r |
94b17fa1 | 135 | IN EFI_HANDLE ImageHandle,\r |
136 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
d2b4564b | 137 | ){\r |
94b17fa1 | 138 | EFI_STATUS Status;\r |
139 | \r | |
94b17fa1 | 140 | //\r |
141 | // UEFI 2.0 shell interfaces (used preferentially)\r | |
142 | //\r | |
143 | Status = gBS->OpenProtocol(ImageHandle, \r | |
144 | &gEfiShellProtocolGuid,\r | |
145 | (VOID **)&mEfiShellProtocol,\r | |
146 | ImageHandle,\r | |
147 | NULL,\r | |
148 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
149 | );\r | |
150 | if (EFI_ERROR(Status)) {\r | |
151 | mEfiShellProtocol = NULL;\r | |
152 | }\r | |
153 | Status = gBS->OpenProtocol(ImageHandle, \r | |
154 | &gEfiShellParametersProtocolGuid,\r | |
155 | (VOID **)&mEfiShellParametersProtocol,\r | |
156 | ImageHandle,\r | |
157 | NULL,\r | |
158 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
159 | );\r | |
160 | if (EFI_ERROR(Status)) {\r | |
161 | mEfiShellParametersProtocol = NULL;\r | |
162 | }\r | |
163 | \r | |
164 | if (mEfiShellParametersProtocol == NULL || mEfiShellProtocol == NULL) {\r | |
165 | //\r | |
166 | // Moved to seperate function due to complexity\r | |
167 | //\r | |
168 | Status = ShellFindSE2(ImageHandle);\r | |
169 | \r | |
170 | if (EFI_ERROR(Status)) {\r | |
171 | DEBUG((DEBUG_ERROR, "Status: 0x%08x\r\n", Status));\r | |
172 | mEfiShellEnvironment2 = NULL;\r | |
173 | }\r | |
174 | Status = gBS->OpenProtocol(ImageHandle, \r | |
175 | &gEfiShellInterfaceGuid,\r | |
176 | (VOID **)&mEfiShellInterface,\r | |
177 | ImageHandle,\r | |
178 | NULL,\r | |
179 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
180 | );\r | |
181 | if (EFI_ERROR(Status)) {\r | |
182 | mEfiShellInterface = NULL;\r | |
183 | }\r | |
184 | }\r | |
185 | //\r | |
186 | // only success getting 2 of either the old or new, but no 1/2 and 1/2\r | |
187 | //\r | |
188 | if ((mEfiShellEnvironment2 != NULL && mEfiShellInterface != NULL) || \r | |
189 | (mEfiShellProtocol != NULL && mEfiShellParametersProtocol != NULL) ) {\r | |
d2b4564b | 190 | if (mEfiShellProtocol != NULL) {\r |
191 | FileFunctionMap.GetFileInfo = mEfiShellProtocol->GetFileInfo;\r | |
192 | FileFunctionMap.SetFileInfo = mEfiShellProtocol->SetFileInfo;\r | |
193 | FileFunctionMap.ReadFile = mEfiShellProtocol->ReadFile;\r | |
194 | FileFunctionMap.WriteFile = mEfiShellProtocol->WriteFile;\r | |
195 | FileFunctionMap.CloseFile = mEfiShellProtocol->CloseFile;\r | |
196 | FileFunctionMap.DeleteFile = mEfiShellProtocol->DeleteFile;\r | |
197 | FileFunctionMap.GetFilePosition = mEfiShellProtocol->GetFilePosition;\r | |
198 | FileFunctionMap.SetFilePosition = mEfiShellProtocol->SetFilePosition;\r | |
199 | FileFunctionMap.FlushFile = mEfiShellProtocol->FlushFile;\r | |
200 | FileFunctionMap.GetFileSize = mEfiShellProtocol->GetFileSize;\r | |
201 | } else {\r | |
202 | FileFunctionMap.GetFileInfo = FileHandleGetInfo;\r | |
203 | FileFunctionMap.SetFileInfo = FileHandleSetInfo;\r | |
204 | FileFunctionMap.ReadFile = FileHandleRead;\r | |
205 | FileFunctionMap.WriteFile = FileHandleWrite;\r | |
206 | FileFunctionMap.CloseFile = FileHandleClose;\r | |
207 | FileFunctionMap.DeleteFile = FileHandleDelete;\r | |
208 | FileFunctionMap.GetFilePosition = FileHandleGetPosition;\r | |
209 | FileFunctionMap.SetFilePosition = FileHandleSetPosition;\r | |
210 | FileFunctionMap.FlushFile = FileHandleFlush;\r | |
211 | FileFunctionMap.GetFileSize = FileHandleGetSize;\r | |
212 | }\r | |
94b17fa1 | 213 | return (EFI_SUCCESS);\r |
214 | }\r | |
215 | return (EFI_NOT_FOUND);\r | |
216 | }\r | |
d2b4564b | 217 | /**\r |
218 | Constructor for the Shell library.\r | |
219 | \r | |
220 | Initialize the library and determine if the underlying is a UEFI Shell 2.0 or an EFI shell.\r | |
221 | \r | |
222 | @param ImageHandle the image handle of the process\r | |
223 | @param SystemTable the EFI System Table pointer\r | |
224 | \r | |
225 | @retval EFI_SUCCESS the initialization was complete sucessfully\r | |
226 | @return others an error ocurred during initialization\r | |
227 | **/\r | |
228 | EFI_STATUS\r | |
229 | EFIAPI\r | |
230 | ShellLibConstructor (\r | |
231 | IN EFI_HANDLE ImageHandle,\r | |
232 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
233 | )\r | |
234 | {\r | |
235 | \r | |
236 | \r | |
237 | mEfiShellEnvironment2 = NULL;\r | |
238 | mEfiShellProtocol = NULL;\r | |
239 | mEfiShellParametersProtocol = NULL;\r | |
240 | mEfiShellInterface = NULL;\r | |
241 | mEfiShellEnvironment2Handle = NULL;\r | |
242 | \r | |
d2b4564b | 243 | //\r |
244 | // verify that auto initialize is not set false\r | |
245 | // \r | |
246 | if (PcdGetBool(PcdShellLibAutoInitialize) == 0) {\r | |
247 | return (EFI_SUCCESS);\r | |
248 | }\r | |
249 | \r | |
250 | return (ShellLibConstructorWorker(ImageHandle, SystemTable));\r | |
251 | }\r | |
94b17fa1 | 252 | \r |
253 | /**\r | |
254 | Destructory for the library. free any resources.\r | |
255 | **/\r | |
256 | EFI_STATUS\r | |
257 | EFIAPI\r | |
258 | ShellLibDestructor (\r | |
259 | IN EFI_HANDLE ImageHandle,\r | |
260 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
261 | )\r | |
262 | {\r | |
263 | if (mEfiShellEnvironment2 != NULL) {\r | |
264 | gBS->CloseProtocol(mEfiShellEnvironment2Handle==NULL?ImageHandle:mEfiShellEnvironment2Handle,\r | |
265 | &gEfiShellEnvironment2Guid,\r | |
266 | ImageHandle,\r | |
267 | NULL);\r | |
d2b4564b | 268 | mEfiShellEnvironment2 = NULL;\r |
94b17fa1 | 269 | }\r |
270 | if (mEfiShellInterface != NULL) {\r | |
271 | gBS->CloseProtocol(ImageHandle,\r | |
272 | &gEfiShellInterfaceGuid,\r | |
273 | ImageHandle,\r | |
274 | NULL); \r | |
d2b4564b | 275 | mEfiShellInterface = NULL;\r |
94b17fa1 | 276 | }\r |
277 | if (mEfiShellProtocol != NULL) {\r | |
278 | gBS->CloseProtocol(ImageHandle,\r | |
279 | &gEfiShellProtocolGuid,\r | |
280 | ImageHandle,\r | |
d2b4564b | 281 | NULL); \r |
282 | mEfiShellProtocol = NULL;\r | |
94b17fa1 | 283 | }\r |
284 | if (mEfiShellParametersProtocol != NULL) {\r | |
285 | gBS->CloseProtocol(ImageHandle,\r | |
286 | &gEfiShellParametersProtocolGuid,\r | |
287 | ImageHandle,\r | |
288 | NULL); \r | |
d2b4564b | 289 | mEfiShellParametersProtocol = NULL;\r |
94b17fa1 | 290 | }\r |
d2b4564b | 291 | mEfiShellEnvironment2Handle = NULL;\r |
94b17fa1 | 292 | return (EFI_SUCCESS);\r |
293 | }\r | |
d2b4564b | 294 | \r |
295 | /**\r | |
296 | This function causes the shell library to initialize itself. If the shell library\r | |
297 | is already initialized it will de-initialize all the current protocol poitners and\r | |
298 | re-populate them again.\r | |
299 | \r | |
300 | When the library is used with PcdShellLibAutoInitialize set to true this function\r | |
301 | will return EFI_SUCCESS and perform no actions.\r | |
302 | \r | |
303 | This function is intended for internal access for shell commands only.\r | |
304 | \r | |
305 | @retval EFI_SUCCESS the initialization was complete sucessfully\r | |
306 | \r | |
307 | **/\r | |
308 | EFI_STATUS\r | |
309 | EFIAPI\r | |
310 | ShellInitialize (\r | |
311 | ) {\r | |
312 | //\r | |
313 | // if auto initialize is not false then skip\r | |
314 | //\r | |
315 | if (PcdGetBool(PcdShellLibAutoInitialize) != 0) {\r | |
316 | return (EFI_SUCCESS);\r | |
317 | }\r | |
318 | \r | |
319 | //\r | |
320 | // deinit the current stuff\r | |
321 | //\r | |
322 | ASSERT_EFI_ERROR(ShellLibDestructor(gImageHandle, gST));\r | |
323 | \r | |
324 | //\r | |
325 | // init the new stuff\r | |
326 | //\r | |
327 | return (ShellLibConstructorWorker(gImageHandle, gST));\r | |
328 | }\r | |
329 | \r | |
94b17fa1 | 330 | /**\r |
331 | This function will retrieve the information about the file for the handle \r | |
332 | specified and store it in allocated pool memory.\r | |
333 | \r | |
69817bf8 | 334 | This function allocates a buffer to store the file's information. It is the \r |
335 | caller's responsibility to free the buffer\r | |
94b17fa1 | 336 | \r |
337 | @param FileHandle The file handle of the file for which information is \r | |
338 | being requested.\r | |
339 | \r | |
340 | @retval NULL information could not be retrieved.\r | |
341 | \r | |
342 | @return the information about the file\r | |
343 | **/\r | |
344 | EFI_FILE_INFO*\r | |
345 | EFIAPI\r | |
346 | ShellGetFileInfo (\r | |
347 | IN EFI_FILE_HANDLE FileHandle\r | |
348 | )\r | |
349 | {\r | |
d2b4564b | 350 | return (FileFunctionMap.GetFileInfo(FileHandle));\r |
94b17fa1 | 351 | }\r |
352 | \r | |
353 | /**\r | |
354 | This function will set the information about the file for the opened handle \r | |
355 | specified.\r | |
356 | \r | |
357 | @param FileHandle The file handle of the file for which information \r | |
358 | is being set\r | |
359 | \r | |
360 | @param FileInfo The infotmation to set.\r | |
361 | \r | |
362 | @retval EFI_SUCCESS The information was set.\r | |
363 | @retval EFI_UNSUPPORTED The InformationType is not known.\r | |
364 | @retval EFI_NO_MEDIA The device has no medium.\r | |
365 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
366 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
367 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r | |
368 | @retval EFI_ACCESS_DENIED The file was opened read only.\r | |
369 | @retval EFI_VOLUME_FULL The volume is full.\r | |
370 | **/\r | |
371 | EFI_STATUS\r | |
372 | EFIAPI\r | |
373 | ShellSetFileInfo (\r | |
374 | IN EFI_FILE_HANDLE FileHandle,\r | |
375 | IN EFI_FILE_INFO *FileInfo\r | |
376 | )\r | |
377 | {\r | |
d2b4564b | 378 | return (FileFunctionMap.SetFileInfo(FileHandle, FileInfo));\r |
94b17fa1 | 379 | } \r |
380 | \r | |
381 | /**\r | |
382 | This function will open a file or directory referenced by DevicePath.\r | |
383 | \r | |
384 | This function opens a file with the open mode according to the file path. The \r | |
385 | Attributes is valid only for EFI_FILE_MODE_CREATE.\r | |
386 | \r | |
387 | @param FilePath on input the device path to the file. On output \r | |
388 | the remaining device path.\r | |
389 | @param DeviceHandle pointer to the system device handle.\r | |
390 | @param FileHandle pointer to the file handle.\r | |
391 | @param OpenMode the mode to open the file with.\r | |
392 | @param Attributes the file's file attributes.\r | |
393 | \r | |
394 | @retval EFI_SUCCESS The information was set.\r | |
395 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r | |
396 | @retval EFI_UNSUPPORTED Could not open the file path. \r | |
397 | @retval EFI_NOT_FOUND The specified file could not be found on the \r | |
398 | device or the file system could not be found on \r | |
399 | the device.\r | |
400 | @retval EFI_NO_MEDIA The device has no medium.\r | |
401 | @retval EFI_MEDIA_CHANGED The device has a different medium in it or the \r | |
402 | medium is no longer supported.\r | |
403 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
404 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
405 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r | |
406 | @retval EFI_ACCESS_DENIED The file was opened read only.\r | |
407 | @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the \r | |
408 | file.\r | |
409 | @retval EFI_VOLUME_FULL The volume is full.\r | |
410 | **/\r | |
411 | EFI_STATUS\r | |
412 | EFIAPI\r | |
413 | ShellOpenFileByDevicePath(\r | |
414 | IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath,\r | |
415 | OUT EFI_HANDLE *DeviceHandle,\r | |
416 | OUT EFI_FILE_HANDLE *FileHandle,\r | |
417 | IN UINT64 OpenMode,\r | |
418 | IN UINT64 Attributes\r | |
419 | )\r | |
420 | {\r | |
421 | CHAR16 *FileName;\r | |
422 | EFI_STATUS Status;\r | |
423 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *EfiSimpleFileSystemProtocol;\r | |
424 | EFI_FILE_HANDLE LastHandle;\r | |
425 | \r | |
426 | //\r | |
427 | // ASERT for FileHandle, FilePath, and DeviceHandle being NULL\r | |
428 | //\r | |
429 | ASSERT(FilePath != NULL);\r | |
430 | ASSERT(FileHandle != NULL);\r | |
431 | ASSERT(DeviceHandle != NULL);\r | |
432 | // \r | |
433 | // which shell interface should we use\r | |
434 | //\r | |
435 | if (mEfiShellProtocol != NULL) {\r | |
436 | //\r | |
437 | // use UEFI Shell 2.0 method.\r | |
438 | //\r | |
439 | FileName = mEfiShellProtocol->GetFilePathFromDevicePath(*FilePath);\r | |
440 | if (FileName == NULL) {\r | |
441 | return (EFI_INVALID_PARAMETER);\r | |
442 | }\r | |
443 | Status = ShellOpenFileByName(FileName, FileHandle, OpenMode, Attributes);\r | |
444 | FreePool(FileName);\r | |
445 | return (Status);\r | |
d2b4564b | 446 | } \r |
447 | \r | |
448 | \r | |
449 | //\r | |
450 | // use old shell method.\r | |
451 | //\r | |
452 | Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, \r | |
453 | FilePath, \r | |
454 | DeviceHandle);\r | |
455 | if (EFI_ERROR (Status)) {\r | |
456 | return Status;\r | |
457 | }\r | |
458 | Status = gBS->OpenProtocol(*DeviceHandle,\r | |
459 | &gEfiSimpleFileSystemProtocolGuid,\r | |
b1f95a06 | 460 | (VOID**)&EfiSimpleFileSystemProtocol,\r |
d2b4564b | 461 | gImageHandle,\r |
462 | NULL,\r | |
463 | EFI_OPEN_PROTOCOL_GET_PROTOCOL);\r | |
464 | if (EFI_ERROR (Status)) {\r | |
465 | return Status;\r | |
466 | }\r | |
467 | Status = EfiSimpleFileSystemProtocol->OpenVolume(EfiSimpleFileSystemProtocol, FileHandle);\r | |
468 | if (EFI_ERROR (Status)) {\r | |
469 | FileHandle = NULL;\r | |
470 | return Status;\r | |
471 | }\r | |
472 | \r | |
473 | //\r | |
474 | // go down directories one node at a time.\r | |
475 | //\r | |
476 | while (!IsDevicePathEnd (*FilePath)) {\r | |
94b17fa1 | 477 | //\r |
d2b4564b | 478 | // For file system access each node should be a file path component\r |
94b17fa1 | 479 | //\r |
d2b4564b | 480 | if (DevicePathType (*FilePath) != MEDIA_DEVICE_PATH ||\r |
481 | DevicePathSubType (*FilePath) != MEDIA_FILEPATH_DP\r | |
482 | ) {\r | |
94b17fa1 | 483 | FileHandle = NULL;\r |
d2b4564b | 484 | return (EFI_INVALID_PARAMETER);\r |
94b17fa1 | 485 | }\r |
d2b4564b | 486 | //\r |
487 | // Open this file path node\r | |
488 | //\r | |
489 | LastHandle = *FileHandle;\r | |
490 | *FileHandle = NULL;\r | |
94b17fa1 | 491 | \r |
492 | //\r | |
d2b4564b | 493 | // Try to test opening an existing file\r |
94b17fa1 | 494 | //\r |
d2b4564b | 495 | Status = LastHandle->Open (\r |
496 | LastHandle,\r | |
497 | FileHandle,\r | |
498 | ((FILEPATH_DEVICE_PATH*)*FilePath)->PathName,\r | |
499 | OpenMode &~EFI_FILE_MODE_CREATE,\r | |
500 | 0\r | |
501 | );\r | |
94b17fa1 | 502 | \r |
d2b4564b | 503 | //\r |
504 | // see if the error was that it needs to be created\r | |
505 | //\r | |
506 | if ((EFI_ERROR (Status)) && (OpenMode != (OpenMode &~EFI_FILE_MODE_CREATE))) {\r | |
94b17fa1 | 507 | Status = LastHandle->Open (\r |
508 | LastHandle,\r | |
509 | FileHandle,\r | |
510 | ((FILEPATH_DEVICE_PATH*)*FilePath)->PathName,\r | |
d2b4564b | 511 | OpenMode,\r |
512 | Attributes\r | |
94b17fa1 | 513 | );\r |
d2b4564b | 514 | }\r |
515 | //\r | |
516 | // Close the last node\r | |
517 | //\r | |
518 | LastHandle->Close (LastHandle);\r | |
94b17fa1 | 519 | \r |
d2b4564b | 520 | if (EFI_ERROR(Status)) {\r |
521 | return (Status);\r | |
94b17fa1 | 522 | }\r |
d2b4564b | 523 | \r |
524 | //\r | |
525 | // Get the next node\r | |
526 | //\r | |
527 | *FilePath = NextDevicePathNode (*FilePath);\r | |
94b17fa1 | 528 | }\r |
d2b4564b | 529 | return (EFI_SUCCESS);\r |
94b17fa1 | 530 | }\r |
531 | \r | |
532 | /**\r | |
533 | This function will open a file or directory referenced by filename.\r | |
534 | \r | |
69817bf8 | 535 | If return is EFI_SUCCESS, the Filehandle is the opened file's handle; \r |
94b17fa1 | 536 | otherwise, the Filehandle is NULL. The Attributes is valid only for \r |
537 | EFI_FILE_MODE_CREATE.\r | |
538 | \r | |
539 | if FileNAme is NULL then ASSERT()\r | |
540 | \r | |
541 | @param FileName pointer to file name\r | |
542 | @param FileHandle pointer to the file handle.\r | |
543 | @param OpenMode the mode to open the file with.\r | |
544 | @param Attributes the file's file attributes.\r | |
545 | \r | |
546 | @retval EFI_SUCCESS The information was set.\r | |
547 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r | |
548 | @retval EFI_UNSUPPORTED Could not open the file path. \r | |
549 | @retval EFI_NOT_FOUND The specified file could not be found on the \r | |
550 | device or the file system could not be found \r | |
551 | on the device.\r | |
552 | @retval EFI_NO_MEDIA The device has no medium.\r | |
553 | @retval EFI_MEDIA_CHANGED The device has a different medium in it or the \r | |
554 | medium is no longer supported.\r | |
555 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
556 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
557 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r | |
558 | @retval EFI_ACCESS_DENIED The file was opened read only.\r | |
559 | @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the \r | |
560 | file.\r | |
561 | @retval EFI_VOLUME_FULL The volume is full.\r | |
562 | **/\r | |
563 | EFI_STATUS\r | |
564 | EFIAPI\r | |
565 | ShellOpenFileByName(\r | |
566 | IN CHAR16 *FileName,\r | |
567 | OUT EFI_FILE_HANDLE *FileHandle,\r | |
568 | IN UINT64 OpenMode,\r | |
569 | IN UINT64 Attributes\r | |
570 | )\r | |
571 | {\r | |
572 | EFI_HANDLE DeviceHandle;\r | |
573 | EFI_DEVICE_PATH_PROTOCOL *FilePath;\r | |
b1f95a06 | 574 | EFI_STATUS Status;\r |
575 | EFI_FILE_INFO *FileInfo;\r | |
94b17fa1 | 576 | \r |
577 | //\r | |
578 | // ASSERT if FileName is NULL\r | |
579 | //\r | |
580 | ASSERT(FileName != NULL);\r | |
581 | \r | |
582 | if (mEfiShellProtocol != NULL) {\r | |
583 | //\r | |
584 | // Use UEFI Shell 2.0 method\r | |
585 | //\r | |
b1f95a06 | 586 | Status = mEfiShellProtocol->OpenFileByName(FileName,\r |
587 | FileHandle,\r | |
588 | OpenMode);\r | |
589 | if (!EFI_ERROR(Status)){\r | |
590 | FileInfo = FileHandleGetInfo(*FileHandle);\r | |
591 | ASSERT(FileInfo != NULL);\r | |
592 | FileInfo->Attribute = Attributes;\r | |
593 | Status = FileHandleSetInfo(*FileHandle, FileInfo);\r | |
594 | }\r | |
595 | return (Status);\r | |
94b17fa1 | 596 | } \r |
597 | //\r | |
598 | // Using EFI Shell version\r | |
599 | // this means convert name to path and call that function\r | |
600 | // since this will use EFI method again that will open it.\r | |
601 | //\r | |
602 | ASSERT(mEfiShellEnvironment2 != NULL);\r | |
603 | FilePath = mEfiShellEnvironment2->NameToPath (FileName);\r | |
604 | if (FileDevicePath != NULL) {\r | |
605 | return (ShellOpenFileByDevicePath(&FilePath,\r | |
606 | &DeviceHandle,\r | |
607 | FileHandle,\r | |
608 | OpenMode,\r | |
609 | Attributes ));\r | |
610 | }\r | |
611 | return (EFI_DEVICE_ERROR);\r | |
612 | }\r | |
613 | /**\r | |
614 | This function create a directory\r | |
615 | \r | |
616 | If return is EFI_SUCCESS, the Filehandle is the opened directory's handle; \r | |
617 | otherwise, the Filehandle is NULL. If the directory already existed, this \r | |
618 | function opens the existing directory.\r | |
619 | \r | |
620 | @param DirectoryName pointer to directory name\r | |
621 | @param FileHandle pointer to the file handle.\r | |
622 | \r | |
623 | @retval EFI_SUCCESS The information was set.\r | |
624 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r | |
625 | @retval EFI_UNSUPPORTED Could not open the file path. \r | |
626 | @retval EFI_NOT_FOUND The specified file could not be found on the \r | |
627 | device or the file system could not be found \r | |
628 | on the device.\r | |
629 | @retval EFI_NO_MEDIA The device has no medium.\r | |
630 | @retval EFI_MEDIA_CHANGED The device has a different medium in it or the \r | |
631 | medium is no longer supported.\r | |
632 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
633 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
634 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r | |
635 | @retval EFI_ACCESS_DENIED The file was opened read only.\r | |
636 | @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the \r | |
637 | file.\r | |
638 | @retval EFI_VOLUME_FULL The volume is full.\r | |
639 | @sa ShellOpenFileByName\r | |
640 | **/\r | |
641 | EFI_STATUS\r | |
642 | EFIAPI\r | |
643 | ShellCreateDirectory(\r | |
644 | IN CHAR16 *DirectoryName,\r | |
645 | OUT EFI_FILE_HANDLE *FileHandle\r | |
646 | )\r | |
647 | {\r | |
648 | //\r | |
649 | // this is a pass thru to the open file function with sepcific open mode and attributes\r | |
650 | //\r | |
651 | return (ShellOpenFileByName(DirectoryName,\r | |
652 | FileHandle,\r | |
653 | EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_CREATE,\r | |
654 | EFI_FILE_DIRECTORY\r | |
655 | ));\r | |
656 | }\r | |
657 | \r | |
658 | /**\r | |
659 | This function reads information from an opened file.\r | |
660 | \r | |
661 | If FileHandle is not a directory, the function reads the requested number of \r | |
69817bf8 | 662 | bytes from the file at the file's current position and returns them in Buffer. \r |
94b17fa1 | 663 | If the read goes beyond the end of the file, the read length is truncated to the\r |
69817bf8 | 664 | end of the file. The file's current position is increased by the number of bytes \r |
94b17fa1 | 665 | returned. If FileHandle is a directory, the function reads the directory entry \r |
69817bf8 | 666 | at the file's current position and returns the entry in Buffer. If the Buffer \r |
94b17fa1 | 667 | is not large enough to hold the current directory entry, then \r |
668 | EFI_BUFFER_TOO_SMALL is returned and the current file position is not updated. \r | |
669 | BufferSize is set to be the size of the buffer needed to read the entry. On \r | |
670 | success, the current position is updated to the next directory entry. If there \r | |
671 | are no more directory entries, the read returns a zero-length buffer. \r | |
672 | EFI_FILE_INFO is the structure returned as the directory entry.\r | |
673 | \r | |
674 | @param FileHandle the opened file handle\r | |
675 | @param BufferSize on input the size of buffer in bytes. on return \r | |
676 | the number of bytes written.\r | |
677 | @param Buffer the buffer to put read data into.\r | |
678 | \r | |
679 | @retval EFI_SUCCESS Data was read.\r | |
680 | @retval EFI_NO_MEDIA The device has no media.\r | |
681 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
682 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
683 | @retval EFI_BUFFER_TO_SMALL Buffer is too small. ReadSize contains required \r | |
684 | size.\r | |
685 | \r | |
686 | **/\r | |
687 | EFI_STATUS\r | |
688 | EFIAPI\r | |
689 | ShellReadFile(\r | |
690 | IN EFI_FILE_HANDLE FileHandle,\r | |
691 | IN OUT UINTN *BufferSize,\r | |
692 | OUT VOID *Buffer\r | |
693 | )\r | |
694 | {\r | |
d2b4564b | 695 | return (FileFunctionMap.ReadFile(FileHandle, BufferSize, Buffer));\r |
94b17fa1 | 696 | }\r |
697 | \r | |
698 | \r | |
699 | /**\r | |
700 | Write data to a file.\r | |
701 | \r | |
702 | This function writes the specified number of bytes to the file at the current \r | |
703 | file position. The current file position is advanced the actual number of bytes \r | |
704 | written, which is returned in BufferSize. Partial writes only occur when there \r | |
69817bf8 | 705 | has been a data error during the write attempt (such as "volume space full"). \r |
94b17fa1 | 706 | The file is automatically grown to hold the data if required. Direct writes to \r |
707 | opened directories are not supported.\r | |
708 | \r | |
709 | @param FileHandle The opened file for writing\r | |
710 | @param BufferSize on input the number of bytes in Buffer. On output\r | |
711 | the number of bytes written.\r | |
712 | @param Buffer the buffer containing data to write is stored.\r | |
713 | \r | |
714 | @retval EFI_SUCCESS Data was written.\r | |
715 | @retval EFI_UNSUPPORTED Writes to an open directory are not supported.\r | |
716 | @retval EFI_NO_MEDIA The device has no media.\r | |
717 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
718 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
719 | @retval EFI_WRITE_PROTECTED The device is write-protected.\r | |
720 | @retval EFI_ACCESS_DENIED The file was open for read only.\r | |
721 | @retval EFI_VOLUME_FULL The volume is full.\r | |
722 | **/\r | |
723 | EFI_STATUS\r | |
724 | EFIAPI\r | |
725 | ShellWriteFile(\r | |
726 | IN EFI_FILE_HANDLE FileHandle,\r | |
727 | IN OUT UINTN *BufferSize,\r | |
728 | IN VOID *Buffer\r | |
729 | )\r | |
730 | {\r | |
d2b4564b | 731 | return (FileFunctionMap.WriteFile(FileHandle, BufferSize, Buffer));\r |
94b17fa1 | 732 | }\r |
733 | \r | |
734 | /** \r | |
735 | Close an open file handle.\r | |
736 | \r | |
69817bf8 | 737 | This function closes a specified file handle. All "dirty" cached file data is \r |
94b17fa1 | 738 | flushed to the device, and the file is closed. In all cases the handle is \r |
739 | closed.\r | |
740 | \r | |
741 | @param FileHandle the file handle to close.\r | |
742 | \r | |
743 | @retval EFI_SUCCESS the file handle was closed sucessfully.\r | |
744 | **/\r | |
745 | EFI_STATUS\r | |
746 | EFIAPI\r | |
747 | ShellCloseFile (\r | |
748 | IN EFI_FILE_HANDLE *FileHandle\r | |
749 | )\r | |
750 | {\r | |
d2b4564b | 751 | return (FileFunctionMap.CloseFile(*FileHandle));\r |
94b17fa1 | 752 | }\r |
753 | \r | |
754 | /**\r | |
755 | Delete a file and close the handle\r | |
756 | \r | |
757 | This function closes and deletes a file. In all cases the file handle is closed.\r | |
758 | If the file cannot be deleted, the warning code EFI_WARN_DELETE_FAILURE is \r | |
759 | returned, but the handle is still closed.\r | |
760 | \r | |
761 | @param FileHandle the file handle to delete\r | |
762 | \r | |
763 | @retval EFI_SUCCESS the file was closed sucessfully\r | |
764 | @retval EFI_WARN_DELETE_FAILURE the handle was closed, but the file was not \r | |
765 | deleted\r | |
766 | @retval INVALID_PARAMETER One of the parameters has an invalid value.\r | |
767 | **/\r | |
768 | EFI_STATUS\r | |
769 | EFIAPI\r | |
770 | ShellDeleteFile (\r | |
771 | IN EFI_FILE_HANDLE *FileHandle\r | |
772 | )\r | |
773 | {\r | |
d2b4564b | 774 | return (FileFunctionMap.DeleteFile(*FileHandle));\r |
94b17fa1 | 775 | }\r |
776 | \r | |
777 | /**\r | |
778 | Set the current position in a file.\r | |
779 | \r | |
780 | This function sets the current file position for the handle to the position \r | |
781 | supplied. With the exception of seeking to position 0xFFFFFFFFFFFFFFFF, only\r | |
782 | absolute positioning is supported, and seeking past the end of the file is \r | |
783 | allowed (a subsequent write would grow the file). Seeking to position \r | |
784 | 0xFFFFFFFFFFFFFFFF causes the current position to be set to the end of the file.\r | |
785 | If FileHandle is a directory, the only position that may be set is zero. This \r | |
786 | has the effect of starting the read process of the directory entries over.\r | |
787 | \r | |
788 | @param FileHandle The file handle on which the position is being set\r | |
789 | @param Position Byte position from begining of file\r | |
790 | \r | |
791 | @retval EFI_SUCCESS Operation completed sucessfully.\r | |
792 | @retval EFI_UNSUPPORTED the seek request for non-zero is not valid on \r | |
793 | directories.\r | |
794 | @retval INVALID_PARAMETER One of the parameters has an invalid value.\r | |
795 | **/\r | |
796 | EFI_STATUS\r | |
797 | EFIAPI\r | |
798 | ShellSetFilePosition (\r | |
799 | IN EFI_FILE_HANDLE FileHandle,\r | |
800 | IN UINT64 Position\r | |
801 | )\r | |
802 | {\r | |
d2b4564b | 803 | return (FileFunctionMap.SetFilePosition(FileHandle, Position));\r |
94b17fa1 | 804 | }\r |
805 | \r | |
806 | /** \r | |
807 | Gets a file's current position\r | |
808 | \r | |
809 | This function retrieves the current file position for the file handle. For \r | |
810 | directories, the current file position has no meaning outside of the file \r | |
811 | system driver and as such the operation is not supported. An error is returned\r | |
812 | if FileHandle is a directory.\r | |
813 | \r | |
814 | @param FileHandle The open file handle on which to get the position.\r | |
815 | @param Position Byte position from begining of file.\r | |
816 | \r | |
817 | @retval EFI_SUCCESS the operation completed sucessfully.\r | |
818 | @retval INVALID_PARAMETER One of the parameters has an invalid value.\r | |
819 | @retval EFI_UNSUPPORTED the request is not valid on directories.\r | |
820 | **/\r | |
821 | EFI_STATUS\r | |
822 | EFIAPI\r | |
823 | ShellGetFilePosition (\r | |
824 | IN EFI_FILE_HANDLE FileHandle,\r | |
825 | OUT UINT64 *Position\r | |
826 | )\r | |
827 | {\r | |
d2b4564b | 828 | return (FileFunctionMap.GetFilePosition(FileHandle, Position));\r |
94b17fa1 | 829 | }\r |
830 | /**\r | |
831 | Flushes data on a file\r | |
832 | \r | |
833 | This function flushes all modified data associated with a file to a device.\r | |
834 | \r | |
835 | @param FileHandle The file handle on which to flush data\r | |
836 | \r | |
837 | @retval EFI_SUCCESS The data was flushed.\r | |
838 | @retval EFI_NO_MEDIA The device has no media.\r | |
839 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
840 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
841 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r | |
842 | @retval EFI_ACCESS_DENIED The file was opened for read only.\r | |
843 | **/\r | |
844 | EFI_STATUS\r | |
845 | EFIAPI\r | |
846 | ShellFlushFile (\r | |
847 | IN EFI_FILE_HANDLE FileHandle\r | |
848 | )\r | |
849 | {\r | |
d2b4564b | 850 | return (FileFunctionMap.FlushFile(FileHandle));\r |
94b17fa1 | 851 | }\r |
852 | \r | |
853 | /**\r | |
854 | Retrieves the first file from a directory\r | |
855 | \r | |
69817bf8 | 856 | This function opens a directory and gets the first file's info in the \r |
94b17fa1 | 857 | directory. Caller can use ShellFindNextFile() to get other files. When \r |
858 | complete the caller is responsible for calling FreePool() on Buffer.\r | |
859 | \r | |
860 | @param DirHandle The file handle of the directory to search\r | |
861 | @param Buffer Pointer to buffer for file's information\r | |
862 | \r | |
863 | @retval EFI_SUCCESS Found the first file.\r | |
864 | @retval EFI_NOT_FOUND Cannot find the directory.\r | |
865 | @retval EFI_NO_MEDIA The device has no media.\r | |
866 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
867 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
868 | @return Others status of ShellGetFileInfo, ShellSetFilePosition,\r | |
869 | or ShellReadFile\r | |
870 | **/\r | |
871 | EFI_STATUS\r | |
872 | EFIAPI\r | |
873 | ShellFindFirstFile (\r | |
874 | IN EFI_FILE_HANDLE DirHandle,\r | |
d2b4564b | 875 | OUT EFI_FILE_INFO **Buffer\r |
94b17fa1 | 876 | )\r |
877 | {\r | |
94b17fa1 | 878 | //\r |
d2b4564b | 879 | // pass to file handle lib\r |
94b17fa1 | 880 | //\r |
d2b4564b | 881 | return (FileHandleFindFirstFile(DirHandle, Buffer));\r |
94b17fa1 | 882 | }\r |
883 | /**\r | |
884 | Retrieves the next file in a directory.\r | |
885 | \r | |
886 | To use this function, caller must call the LibFindFirstFile() to get the \r | |
887 | first file, and then use this function get other files. This function can be \r | |
888 | called for several times to get each file's information in the directory. If \r | |
889 | the call of ShellFindNextFile() got the last file in the directory, the next \r | |
890 | call of this function has no file to get. *NoFile will be set to TRUE and the \r | |
891 | Buffer memory will be automatically freed. \r | |
892 | \r | |
893 | @param DirHandle the file handle of the directory\r | |
894 | @param Buffer pointer to buffer for file's information\r | |
895 | @param NoFile pointer to boolean when last file is found\r | |
896 | \r | |
897 | @retval EFI_SUCCESS Found the next file, or reached last file\r | |
898 | @retval EFI_NO_MEDIA The device has no media.\r | |
899 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
900 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
901 | **/\r | |
902 | EFI_STATUS\r | |
903 | EFIAPI\r | |
904 | ShellFindNextFile(\r | |
905 | IN EFI_FILE_HANDLE DirHandle,\r | |
906 | OUT EFI_FILE_INFO *Buffer,\r | |
907 | OUT BOOLEAN *NoFile\r | |
908 | )\r | |
909 | {\r | |
94b17fa1 | 910 | //\r |
d2b4564b | 911 | // pass to file handle lib\r |
94b17fa1 | 912 | //\r |
d2b4564b | 913 | return (FileHandleFindNextFile(DirHandle, Buffer, NoFile));\r |
94b17fa1 | 914 | }\r |
915 | /**\r | |
916 | Retrieve the size of a file.\r | |
917 | \r | |
918 | if FileHandle is NULL then ASSERT()\r | |
919 | if Size is NULL then ASSERT()\r | |
920 | \r | |
69817bf8 | 921 | This function extracts the file size info from the FileHandle's EFI_FILE_INFO \r |
94b17fa1 | 922 | data.\r |
923 | \r | |
924 | @param FileHandle file handle from which size is retrieved\r | |
925 | @param Size pointer to size\r | |
926 | \r | |
927 | @retval EFI_SUCCESS operation was completed sucessfully\r | |
928 | @retval EFI_DEVICE_ERROR cannot access the file\r | |
929 | **/\r | |
930 | EFI_STATUS\r | |
931 | EFIAPI\r | |
932 | ShellGetFileSize (\r | |
933 | IN EFI_FILE_HANDLE FileHandle,\r | |
934 | OUT UINT64 *Size\r | |
935 | )\r | |
936 | {\r | |
d2b4564b | 937 | return (FileFunctionMap.GetFileSize(FileHandle, Size));\r |
94b17fa1 | 938 | }\r |
939 | /**\r | |
940 | Retrieves the status of the break execution flag\r | |
941 | \r | |
942 | this function is useful to check whether the application is being asked to halt by the shell.\r | |
943 | \r | |
944 | @retval TRUE the execution break is enabled\r | |
945 | @retval FALSE the execution break is not enabled\r | |
946 | **/\r | |
947 | BOOLEAN\r | |
948 | EFIAPI\r | |
949 | ShellGetExecutionBreakFlag(\r | |
950 | VOID\r | |
951 | )\r | |
952 | {\r | |
953 | // \r | |
954 | // Check for UEFI Shell 2.0 protocols\r | |
955 | //\r | |
956 | if (mEfiShellProtocol != NULL) {\r | |
957 | \r | |
958 | //\r | |
959 | // We are using UEFI Shell 2.0; see if the event has been triggered\r | |
960 | //\r | |
961 | if (gBS->CheckEvent(mEfiShellProtocol->ExecutionBreak) != EFI_SUCCESS) {\r | |
962 | return (FALSE);\r | |
963 | }\r | |
964 | return (TRUE);\r | |
965 | } \r | |
966 | \r | |
967 | //\r | |
968 | // using EFI Shell; call the function to check\r | |
969 | //\r | |
970 | ASSERT(mEfiShellEnvironment2 != NULL);\r | |
971 | return (mEfiShellEnvironment2->GetExecutionBreak());\r | |
972 | }\r | |
973 | /**\r | |
974 | return the value of an environment variable\r | |
975 | \r | |
976 | this function gets the value of the environment variable set by the \r | |
977 | ShellSetEnvironmentVariable function\r | |
978 | \r | |
979 | @param EnvKey The key name of the environment variable.\r | |
980 | \r | |
981 | @retval NULL the named environment variable does not exist.\r | |
982 | @return != NULL pointer to the value of the environment variable\r | |
983 | **/\r | |
984 | CONST CHAR16*\r | |
985 | EFIAPI\r | |
986 | ShellGetEnvironmentVariable (\r | |
987 | IN CHAR16 *EnvKey\r | |
988 | )\r | |
989 | {\r | |
990 | // \r | |
991 | // Check for UEFI Shell 2.0 protocols\r | |
992 | //\r | |
993 | if (mEfiShellProtocol != NULL) {\r | |
994 | return (mEfiShellProtocol->GetEnv(EnvKey));\r | |
995 | }\r | |
996 | \r | |
997 | //\r | |
998 | // ASSERT that we must have EFI shell\r | |
999 | //\r | |
1000 | ASSERT(mEfiShellEnvironment2 != NULL);\r | |
1001 | \r | |
1002 | //\r | |
1003 | // using EFI Shell\r | |
1004 | //\r | |
1005 | return (mEfiShellEnvironment2->GetEnv(EnvKey));\r | |
1006 | }\r | |
1007 | /**\r | |
1008 | set the value of an environment variable\r | |
1009 | \r | |
1010 | This function changes the current value of the specified environment variable. If the\r | |
1011 | environment variable exists and the Value is an empty string, then the environment\r | |
1012 | variable is deleted. If the environment variable exists and the Value is not an empty\r | |
1013 | string, then the value of the environment variable is changed. If the environment\r | |
1014 | variable does not exist and the Value is an empty string, there is no action. If the\r | |
1015 | environment variable does not exist and the Value is a non-empty string, then the\r | |
1016 | environment variable is created and assigned the specified value.\r | |
1017 | \r | |
1018 | This is not supported pre-UEFI Shell 2.0.\r | |
1019 | \r | |
1020 | @param EnvKey The key name of the environment variable.\r | |
1021 | @param EnvVal The Value of the environment variable\r | |
1022 | @param Volatile Indicates whether the variable is non-volatile (FALSE) or volatile (TRUE).\r | |
1023 | \r | |
1024 | @retval EFI_SUCCESS the operation was completed sucessfully\r | |
1025 | @retval EFI_UNSUPPORTED This operation is not allowed in pre UEFI 2.0 Shell environments\r | |
1026 | **/\r | |
1027 | EFI_STATUS\r | |
1028 | EFIAPI\r | |
1029 | ShellSetEnvironmentVariable (\r | |
1030 | IN CONST CHAR16 *EnvKey,\r | |
1031 | IN CONST CHAR16 *EnvVal,\r | |
1032 | IN BOOLEAN Volatile\r | |
1033 | )\r | |
1034 | {\r | |
1035 | // \r | |
1036 | // Check for UEFI Shell 2.0 protocols\r | |
1037 | //\r | |
1038 | if (mEfiShellProtocol != NULL) {\r | |
1039 | return (mEfiShellProtocol->SetEnv(EnvKey, EnvVal, Volatile));\r | |
1040 | } \r | |
1041 | \r | |
1042 | //\r | |
1043 | // This feature does not exist under EFI shell\r | |
1044 | //\r | |
1045 | return (EFI_UNSUPPORTED);\r | |
1046 | }\r | |
1047 | /**\r | |
1048 | cause the shell to parse and execute a command line.\r | |
1049 | \r | |
1050 | This function creates a nested instance of the shell and executes the specified\r | |
1051 | command (CommandLine) with the specified environment (Environment). Upon return,\r | |
1052 | the status code returned by the specified command is placed in StatusCode.\r | |
1053 | If Environment is NULL, then the current environment is used and all changes made\r | |
1054 | by the commands executed will be reflected in the current environment. If the\r | |
1055 | Environment is non-NULL, then the changes made will be discarded.\r | |
1056 | The CommandLine is executed from the current working directory on the current\r | |
1057 | device.\r | |
1058 | \r | |
1059 | EnvironmentVariables and Status are only supported for UEFI Shell 2.0.\r | |
1060 | Output is only supported for pre-UEFI Shell 2.0\r | |
1061 | \r | |
1062 | @param ImageHandle Parent image that is starting the operation\r | |
1063 | @param CommandLine pointer to null terminated command line.\r | |
1064 | @param Output true to display debug output. false to hide it.\r | |
1065 | @param EnvironmentVariables optional pointer to array of environment variables\r | |
1066 | in the form "x=y". if NULL current set is used.\r | |
1067 | @param Status the status of the run command line.\r | |
1068 | \r | |
1069 | @retval EFI_SUCCESS the operation completed sucessfully. Status\r | |
1070 | contains the status code returned.\r | |
1071 | @retval EFI_INVALID_PARAMETER a parameter contains an invalid value\r | |
1072 | @retval EFI_OUT_OF_RESOURCES out of resources\r | |
1073 | @retval EFI_UNSUPPORTED the operation is not allowed.\r | |
1074 | **/\r | |
1075 | EFI_STATUS\r | |
1076 | EFIAPI\r | |
1077 | ShellExecute (\r | |
1078 | IN EFI_HANDLE *ParentHandle,\r | |
1079 | IN CHAR16 *CommandLine OPTIONAL,\r | |
1080 | IN BOOLEAN Output OPTIONAL,\r | |
1081 | IN CHAR16 **EnvironmentVariables OPTIONAL,\r | |
1082 | OUT EFI_STATUS *Status OPTIONAL\r | |
1083 | )\r | |
1084 | {\r | |
1085 | // \r | |
1086 | // Check for UEFI Shell 2.0 protocols\r | |
1087 | //\r | |
1088 | if (mEfiShellProtocol != NULL) {\r | |
1089 | //\r | |
1090 | // Call UEFI Shell 2.0 version (not using Output parameter)\r | |
1091 | //\r | |
1092 | return (mEfiShellProtocol->Execute(ParentHandle,\r | |
1093 | CommandLine,\r | |
1094 | EnvironmentVariables,\r | |
1095 | Status));\r | |
1096 | } \r | |
1097 | //\r | |
1098 | // ASSERT that we must have EFI shell\r | |
1099 | //\r | |
1100 | ASSERT(mEfiShellEnvironment2 != NULL);\r | |
1101 | //\r | |
1102 | // Call EFI Shell version (not using EnvironmentVariables or Status parameters)\r | |
1103 | // Due to oddity in the EFI shell we want to dereference the ParentHandle here\r | |
1104 | //\r | |
1105 | return (mEfiShellEnvironment2->Execute(*ParentHandle, \r | |
1106 | CommandLine, \r | |
1107 | Output));\r | |
1108 | }\r | |
1109 | /**\r | |
1110 | Retreives the current directory path\r | |
1111 | \r | |
69817bf8 | 1112 | If the DeviceName is NULL, it returns the current device's current directory \r |
94b17fa1 | 1113 | name. If the DeviceName is not NULL, it returns the current directory name \r |
1114 | on specified drive.\r | |
1115 | \r | |
1116 | @param DeviceName the name of the drive to get directory on\r | |
1117 | \r | |
1118 | @retval NULL the directory does not exist\r | |
1119 | @return != NULL the directory\r | |
1120 | **/\r | |
1121 | CONST CHAR16*\r | |
1122 | EFIAPI\r | |
1123 | ShellGetCurrentDir (\r | |
1124 | IN CHAR16 *DeviceName OPTIONAL\r | |
1125 | )\r | |
1126 | {\r | |
1127 | // \r | |
1128 | // Check for UEFI Shell 2.0 protocols\r | |
1129 | //\r | |
1130 | if (mEfiShellProtocol != NULL) {\r | |
1131 | return (mEfiShellProtocol->GetCurDir(DeviceName));\r | |
1132 | } \r | |
1133 | //\r | |
1134 | // ASSERT that we must have EFI shell\r | |
1135 | //\r | |
1136 | ASSERT(mEfiShellEnvironment2 != NULL);\r | |
1137 | return (mEfiShellEnvironment2->CurDir(DeviceName));\r | |
1138 | }\r | |
1139 | /**\r | |
1140 | sets (enabled or disabled) the page break mode\r | |
1141 | \r | |
1142 | when page break mode is enabled the screen will stop scrolling \r | |
1143 | and wait for operator input before scrolling a subsequent screen.\r | |
1144 | \r | |
1145 | @param CurrentState TRUE to enable and FALSE to disable\r | |
1146 | **/\r | |
1147 | VOID \r | |
1148 | EFIAPI\r | |
1149 | ShellSetPageBreakMode (\r | |
1150 | IN BOOLEAN CurrentState\r | |
1151 | )\r | |
1152 | {\r | |
1153 | //\r | |
1154 | // check for enabling\r | |
1155 | //\r | |
1156 | if (CurrentState != 0x00) {\r | |
1157 | // \r | |
1158 | // check for UEFI Shell 2.0\r | |
1159 | //\r | |
1160 | if (mEfiShellProtocol != NULL) {\r | |
1161 | //\r | |
1162 | // Enable with UEFI 2.0 Shell\r | |
1163 | //\r | |
1164 | mEfiShellProtocol->EnablePageBreak();\r | |
1165 | return;\r | |
1166 | } else {\r | |
1167 | // \r | |
1168 | // ASSERT that must have EFI Shell\r | |
1169 | //\r | |
1170 | ASSERT(mEfiShellEnvironment2 != NULL);\r | |
1171 | //\r | |
1172 | // Enable with EFI Shell\r | |
1173 | //\r | |
1174 | mEfiShellEnvironment2->EnablePageBreak (DEFAULT_INIT_ROW, DEFAULT_AUTO_LF);\r | |
1175 | return;\r | |
1176 | }\r | |
1177 | } else {\r | |
1178 | // \r | |
1179 | // check for UEFI Shell 2.0\r | |
1180 | //\r | |
1181 | if (mEfiShellProtocol != NULL) {\r | |
1182 | //\r | |
1183 | // Disable with UEFI 2.0 Shell\r | |
1184 | //\r | |
1185 | mEfiShellProtocol->DisablePageBreak();\r | |
1186 | return;\r | |
1187 | } else {\r | |
1188 | // \r | |
1189 | // ASSERT that must have EFI Shell\r | |
1190 | //\r | |
1191 | ASSERT(mEfiShellEnvironment2 != NULL);\r | |
1192 | //\r | |
1193 | // Disable with EFI Shell\r | |
1194 | //\r | |
1195 | mEfiShellEnvironment2->DisablePageBreak ();\r | |
1196 | return;\r | |
1197 | }\r | |
1198 | }\r | |
1199 | }\r | |
1200 | \r | |
1201 | ///\r | |
1202 | /// version of EFI_SHELL_FILE_INFO struct, except has no CONST pointers.\r | |
1203 | /// This allows for the struct to be populated.\r | |
1204 | ///\r | |
1205 | typedef struct {\r | |
d2b4564b | 1206 | LIST_ENTRY Link;\r |
94b17fa1 | 1207 | EFI_STATUS Status;\r |
1208 | CHAR16 *FullName;\r | |
1209 | CHAR16 *FileName;\r | |
1210 | EFI_FILE_HANDLE Handle;\r | |
1211 | EFI_FILE_INFO *Info;\r | |
1212 | } EFI_SHELL_FILE_INFO_NO_CONST;\r | |
1213 | \r | |
1214 | /**\r | |
1215 | Converts a EFI shell list of structures to the coresponding UEFI Shell 2.0 type of list.\r | |
1216 | \r | |
1217 | if OldStyleFileList is NULL then ASSERT()\r | |
1218 | \r | |
1219 | this function will convert a SHELL_FILE_ARG based list into a callee allocated \r | |
1220 | EFI_SHELL_FILE_INFO based list. it is up to the caller to free the memory via\r | |
1221 | the ShellCloseFileMetaArg function.\r | |
1222 | \r | |
1223 | @param FileList the EFI shell list type\r | |
1224 | \r | |
1225 | @retval the resultant head of the double linked new format list;\r | |
1226 | **/\r | |
1227 | LIST_ENTRY*\r | |
1228 | EFIAPI\r | |
1229 | InternalShellConvertFileListType (\r | |
d2b4564b | 1230 | LIST_ENTRY *FileList\r |
94b17fa1 | 1231 | )\r |
1232 | {\r | |
1233 | LIST_ENTRY *ListHead;\r | |
1234 | SHELL_FILE_ARG *OldInfo;\r | |
d2b4564b | 1235 | LIST_ENTRY *Link;\r |
94b17fa1 | 1236 | EFI_SHELL_FILE_INFO_NO_CONST *NewInfo;\r |
1237 | \r | |
1238 | //\r | |
1239 | // ASSERT that FileList is not NULL\r | |
1240 | //\r | |
1241 | ASSERT(FileList != NULL);\r | |
1242 | \r | |
1243 | //\r | |
1244 | // Allocate our list head and initialize the list\r | |
1245 | //\r | |
d2b4564b | 1246 | ListHead = AllocateZeroPool(sizeof(LIST_ENTRY));\r |
94b17fa1 | 1247 | ASSERT (ListHead != NULL);\r |
1248 | ListHead = InitializeListHead (ListHead);\r | |
1249 | \r | |
1250 | //\r | |
1251 | // enumerate through each member of the old list and copy\r | |
1252 | //\r | |
d2b4564b | 1253 | for (Link = FileList->ForwardLink; Link != FileList; Link = Link->ForwardLink) {\r |
94b17fa1 | 1254 | OldInfo = CR (Link, SHELL_FILE_ARG, Link, SHELL_FILE_ARG_SIGNATURE);\r |
1255 | \r | |
1256 | //\r | |
1257 | // make sure the old list was valid\r | |
1258 | //\r | |
1259 | ASSERT(OldInfo != NULL); \r | |
1260 | ASSERT(OldInfo->Info != NULL);\r | |
1261 | ASSERT(OldInfo->FullName != NULL);\r | |
1262 | ASSERT(OldInfo->FileName != NULL);\r | |
1263 | \r | |
1264 | //\r | |
1265 | // allocate a new EFI_SHELL_FILE_INFO object\r | |
1266 | //\r | |
1267 | NewInfo = AllocateZeroPool(sizeof(EFI_SHELL_FILE_INFO));\r | |
1268 | \r | |
1269 | // \r | |
1270 | // copy the simple items\r | |
1271 | //\r | |
1272 | NewInfo->Handle = OldInfo->Handle;\r | |
1273 | NewInfo->Status = OldInfo->Status;\r | |
1274 | \r | |
d2b4564b | 1275 | // old shell checks for 0 not NULL\r |
1276 | OldInfo->Handle = 0;\r | |
1277 | \r | |
94b17fa1 | 1278 | //\r |
1279 | // allocate new space to copy strings and structure\r | |
1280 | //\r | |
1281 | NewInfo->FullName = AllocateZeroPool(StrSize(OldInfo->FullName));\r | |
1282 | NewInfo->FileName = AllocateZeroPool(StrSize(OldInfo->FileName));\r | |
1283 | NewInfo->Info = AllocateZeroPool((UINTN)OldInfo->Info->Size);\r | |
1284 | \r | |
1285 | //\r | |
1286 | // make sure all the memory allocations were sucessful\r | |
1287 | //\r | |
1288 | ASSERT(NewInfo->FullName != NULL);\r | |
1289 | ASSERT(NewInfo->FileName != NULL);\r | |
1290 | ASSERT(NewInfo->Info != NULL);\r | |
1291 | \r | |
1292 | //\r | |
1293 | // Copt the strings and structure\r | |
1294 | //\r | |
1295 | StrCpy(NewInfo->FullName, OldInfo->FullName);\r | |
1296 | StrCpy(NewInfo->FileName, OldInfo->FileName);\r | |
1297 | gBS->CopyMem (NewInfo->Info, OldInfo->Info, (UINTN)OldInfo->Info->Size);\r | |
1298 | \r | |
1299 | //\r | |
1300 | // add that to the list\r | |
1301 | //\r | |
1302 | InsertTailList(ListHead, (LIST_ENTRY*)NewInfo);\r | |
1303 | }\r | |
1304 | return (ListHead);\r | |
1305 | }\r | |
1306 | /**\r | |
1307 | Opens a group of files based on a path.\r | |
1308 | \r | |
1309 | This function uses the Arg to open all the matching files. Each matched \r | |
1310 | file has a SHELL_FILE_ARG structure to record the file information. These \r | |
1311 | structures are placed on the list ListHead. Users can get the SHELL_FILE_ARG \r | |
1312 | structures from ListHead to access each file. This function supports wildcards\r | |
1313 | and will process '?' and '*' as such. the list must be freed with a call to \r | |
1314 | ShellCloseFileMetaArg().\r | |
1315 | \r | |
1316 | This function will fail if called sequentially without freeing the list in the middle.\r | |
1317 | \r | |
1318 | @param Arg pointer to path string\r | |
1319 | @param OpenMode mode to open files with\r | |
1320 | @param ListHead head of linked list of results\r | |
1321 | \r | |
1322 | @retval EFI_SUCCESS the operation was sucessful and the list head \r | |
1323 | contains the list of opened files\r | |
1324 | #retval EFI_UNSUPPORTED a previous ShellOpenFileMetaArg must be closed first.\r | |
1325 | *ListHead is set to NULL.\r | |
1326 | @return != EFI_SUCCESS the operation failed\r | |
1327 | \r | |
1328 | @sa InternalShellConvertFileListType\r | |
1329 | **/\r | |
1330 | EFI_STATUS\r | |
1331 | EFIAPI\r | |
1332 | ShellOpenFileMetaArg (\r | |
1333 | IN CHAR16 *Arg,\r | |
1334 | IN UINT64 OpenMode,\r | |
1335 | IN OUT EFI_SHELL_FILE_INFO **ListHead\r | |
1336 | )\r | |
1337 | {\r | |
1338 | EFI_STATUS Status;\r | |
1339 | LIST_ENTRY *EmptyNode;\r | |
d2b4564b | 1340 | LIST_ENTRY *mOldStyleFileList;\r |
1341 | \r | |
94b17fa1 | 1342 | //\r |
1343 | // ASSERT that Arg and ListHead are not NULL\r | |
1344 | //\r | |
1345 | ASSERT(Arg != NULL);\r | |
1346 | ASSERT(ListHead != NULL);\r | |
1347 | \r | |
1348 | // \r | |
1349 | // Check for UEFI Shell 2.0 protocols\r | |
1350 | //\r | |
1351 | if (mEfiShellProtocol != NULL) {\r | |
1352 | return (mEfiShellProtocol->OpenFileList(Arg, \r | |
1353 | OpenMode, \r | |
1354 | ListHead));\r | |
1355 | } \r | |
1356 | \r | |
1357 | //\r | |
1358 | // ASSERT that we must have EFI shell\r | |
1359 | //\r | |
1360 | ASSERT(mEfiShellEnvironment2 != NULL);\r | |
1361 | \r | |
1362 | //\r | |
1363 | // allocate memory for old list head\r | |
1364 | //\r | |
d2b4564b | 1365 | mOldStyleFileList = (LIST_ENTRY*)AllocatePool(sizeof(LIST_ENTRY));\r |
94b17fa1 | 1366 | ASSERT(mOldStyleFileList != NULL);\r |
1367 | \r | |
1368 | //\r | |
1369 | // make sure the list head is initialized\r | |
1370 | //\r | |
1371 | InitializeListHead((LIST_ENTRY*)mOldStyleFileList);\r | |
1372 | \r | |
1373 | //\r | |
1374 | // Get the EFI Shell list of files\r | |
1375 | //\r | |
1376 | Status = mEfiShellEnvironment2->FileMetaArg(Arg, mOldStyleFileList);\r | |
1377 | if (EFI_ERROR(Status)) {\r | |
1378 | *ListHead = NULL;\r | |
1379 | return (Status);\r | |
1380 | }\r | |
1381 | \r | |
1382 | //\r | |
1383 | // Convert that to equivalent of UEFI Shell 2.0 structure\r | |
1384 | //\r | |
1385 | EmptyNode = InternalShellConvertFileListType(mOldStyleFileList);\r | |
1386 | \r | |
d2b4564b | 1387 | //\r |
1388 | // Free the EFI Shell version that was converted.\r | |
1389 | //\r | |
1390 | ASSERT_EFI_ERROR(mEfiShellEnvironment2->FreeFileList(mOldStyleFileList));\r | |
1391 | FreePool(mOldStyleFileList);\r | |
1392 | mOldStyleFileList = NULL;\r | |
1393 | \r | |
94b17fa1 | 1394 | //\r |
1395 | // remove the empty head of the list\r | |
1396 | //\r | |
1397 | *ListHead = (EFI_SHELL_FILE_INFO*)RemoveEntryList(EmptyNode);\r | |
1398 | FreePool(EmptyNode); \r | |
1399 | \r | |
1400 | return (Status);\r | |
1401 | }\r | |
1402 | /**\r | |
1403 | Free the linked list returned from ShellOpenFileMetaArg\r | |
1404 | \r | |
1405 | if ListHead is NULL then ASSERT()\r | |
1406 | \r | |
1407 | @param ListHead the pointer to free\r | |
1408 | \r | |
1409 | @retval EFI_SUCCESS the operation was sucessful\r | |
1410 | **/\r | |
1411 | EFI_STATUS\r | |
1412 | EFIAPI\r | |
1413 | ShellCloseFileMetaArg (\r | |
1414 | IN OUT EFI_SHELL_FILE_INFO **ListHead\r | |
1415 | )\r | |
1416 | {\r | |
1417 | LIST_ENTRY *Node;\r | |
1418 | \r | |
1419 | //\r | |
1420 | // ASSERT that ListHead is not NULL\r | |
1421 | //\r | |
1422 | ASSERT(ListHead != NULL);\r | |
1423 | \r | |
1424 | // \r | |
1425 | // Check for UEFI Shell 2.0 protocols\r | |
1426 | //\r | |
1427 | if (mEfiShellProtocol != NULL) {\r | |
1428 | return (mEfiShellProtocol->FreeFileList(ListHead));\r | |
1429 | } else {\r | |
94b17fa1 | 1430 | //\r |
1431 | // Since this is EFI Shell version we need to free our internally made copy \r | |
1432 | // of the list\r | |
1433 | //\r | |
1434 | for (Node = GetFirstNode((LIST_ENTRY*)*ListHead) ; IsListEmpty((LIST_ENTRY*)*ListHead) == FALSE ; Node = GetFirstNode((LIST_ENTRY*)*ListHead)) {\r | |
1435 | RemoveEntryList(Node);\r | |
d2b4564b | 1436 | ((EFI_SHELL_FILE_INFO_NO_CONST*)Node)->Handle->Close(((EFI_SHELL_FILE_INFO_NO_CONST*)Node)->Handle);\r |
94b17fa1 | 1437 | FreePool(((EFI_SHELL_FILE_INFO_NO_CONST*)Node)->FullName);\r |
1438 | FreePool(((EFI_SHELL_FILE_INFO_NO_CONST*)Node)->FileName);\r | |
1439 | FreePool(((EFI_SHELL_FILE_INFO_NO_CONST*)Node)->Info);\r | |
1440 | FreePool((EFI_SHELL_FILE_INFO_NO_CONST*)Node);\r | |
1441 | }\r | |
1442 | return EFI_SUCCESS;\r | |
1443 | }\r | |
1444 | }\r | |
1445 | \r | |
1446 | typedef struct {\r | |
d2b4564b | 1447 | LIST_ENTRY List;\r |
94b17fa1 | 1448 | CHAR16 *Name;\r |
1449 | ParamType Type;\r | |
1450 | CHAR16 *Value;\r | |
1451 | UINTN OriginalPosition;\r | |
1452 | } SHELL_PARAM_PACKAGE;\r | |
1453 | \r | |
1454 | /**\r | |
1455 | Checks the list of valid arguments and returns TRUE if the item was found. If the \r | |
1456 | return value is TRUE then the type parameter is set also.\r | |
1457 | \r | |
1458 | if CheckList is NULL then ASSERT();\r | |
1459 | if Name is NULL then ASSERT();\r | |
1460 | if Type is NULL then ASSERT();\r | |
1461 | \r | |
1462 | @param Type pointer to type of parameter if it was found\r | |
1463 | @param Name pointer to Name of parameter found\r | |
1464 | @param CheckList List to check against\r | |
1465 | \r | |
1466 | @retval TRUE the Parameter was found. Type is valid.\r | |
1467 | @retval FALSE the Parameter was not found. Type is not valid.\r | |
1468 | **/\r | |
1469 | BOOLEAN\r | |
1470 | EFIAPI\r | |
d2b4564b | 1471 | InternalIsOnCheckList (\r |
94b17fa1 | 1472 | IN CONST CHAR16 *Name,\r |
1473 | IN CONST SHELL_PARAM_ITEM *CheckList,\r | |
1474 | OUT ParamType *Type\r | |
1475 | )\r | |
1476 | {\r | |
1477 | SHELL_PARAM_ITEM *TempListItem;\r | |
1478 | \r | |
1479 | //\r | |
1480 | // ASSERT that all 3 pointer parameters aren't NULL\r | |
1481 | //\r | |
1482 | ASSERT(CheckList != NULL);\r | |
1483 | ASSERT(Type != NULL);\r | |
1484 | ASSERT(Name != NULL);\r | |
1485 | \r | |
d2b4564b | 1486 | //\r |
1487 | // question mark and page break mode are always supported\r | |
1488 | //\r | |
1489 | if ((StrCmp(Name, L"-?") == 0) ||\r | |
1490 | (StrCmp(Name, L"-b") == 0)\r | |
1491 | ) {\r | |
1492 | return (TRUE);\r | |
1493 | }\r | |
1494 | \r | |
94b17fa1 | 1495 | //\r |
1496 | // Enumerate through the list\r | |
1497 | //\r | |
1498 | for (TempListItem = (SHELL_PARAM_ITEM*)CheckList ; TempListItem->Name != NULL ; TempListItem++) {\r | |
1499 | //\r | |
1500 | // If the Name matches set the type and return TRUE\r | |
1501 | //\r | |
1502 | if (StrCmp(Name, TempListItem->Name) == 0) {\r | |
1503 | *Type = TempListItem->Type;\r | |
1504 | return (TRUE);\r | |
1505 | }\r | |
1506 | }\r | |
1507 | return (FALSE);\r | |
1508 | }\r | |
1509 | /**\r | |
d2b4564b | 1510 | Checks the string for indicators of "flag" status. this is a leading '/', '-', or '+'\r |
94b17fa1 | 1511 | \r |
1512 | @param Name pointer to Name of parameter found\r | |
1513 | \r | |
1514 | @retval TRUE the Parameter is a flag.\r | |
1515 | @retval FALSE the Parameter not a flag\r | |
1516 | **/\r | |
1517 | BOOLEAN\r | |
1518 | EFIAPI\r | |
d2b4564b | 1519 | InternalIsFlag (\r |
94b17fa1 | 1520 | IN CONST CHAR16 *Name\r |
1521 | )\r | |
1522 | {\r | |
1523 | //\r | |
1524 | // ASSERT that Name isn't NULL\r | |
1525 | //\r | |
1526 | ASSERT(Name != NULL);\r | |
1527 | \r | |
1528 | //\r | |
1529 | // If the Name has a / or - as the first character return TRUE\r | |
1530 | //\r | |
d2b4564b | 1531 | if ((Name[0] == L'/') || \r |
1532 | (Name[0] == L'-') ||\r | |
1533 | (Name[0] == L'+')\r | |
1534 | ) {\r | |
94b17fa1 | 1535 | return (TRUE);\r |
1536 | }\r | |
1537 | return (FALSE);\r | |
1538 | }\r | |
1539 | \r | |
1540 | /**\r | |
1541 | Checks the command line arguments passed against the list of valid ones. \r | |
1542 | \r | |
1543 | If no initialization is required, then return RETURN_SUCCESS.\r | |
1544 | \r | |
1545 | @param CheckList pointer to list of parameters to check\r | |
1546 | @param CheckPackage pointer to pointer to list checked values\r | |
1547 | @param ProblemParam optional pointer to pointer to unicode string for \r | |
d2b4564b | 1548 | the paramater that caused failure. If used then the\r |
1549 | caller is responsible for freeing the memory.\r | |
94b17fa1 | 1550 | @param AutoPageBreak will automatically set PageBreakEnabled for "b" parameter\r |
1551 | @param Argc Count of parameters in Argv\r | |
1552 | @param Argv pointer to array of parameters\r | |
1553 | \r | |
1554 | @retval EFI_SUCCESS The operation completed sucessfully.\r | |
1555 | @retval EFI_OUT_OF_RESOURCES A memory allocation failed\r | |
1556 | @retval EFI_INVALID_PARAMETER A parameter was invalid\r | |
1557 | @retval EFI_VOLUME_CORRUPTED the command line was corrupt. an argument was \r | |
1558 | duplicated. the duplicated command line argument \r | |
1559 | was returned in ProblemParam if provided.\r | |
1560 | @retval EFI_NOT_FOUND a argument required a value that was missing. \r | |
1561 | the invalid command line argument was returned in\r | |
1562 | ProblemParam if provided.\r | |
1563 | **/\r | |
1564 | EFI_STATUS\r | |
1565 | EFIAPI\r | |
1566 | InternalCommandLineParse (\r | |
1567 | IN CONST SHELL_PARAM_ITEM *CheckList,\r | |
1568 | OUT LIST_ENTRY **CheckPackage,\r | |
1569 | OUT CHAR16 **ProblemParam OPTIONAL,\r | |
1570 | IN BOOLEAN AutoPageBreak,\r | |
1571 | IN CONST CHAR16 **Argv,\r | |
1572 | IN UINTN Argc\r | |
1573 | )\r | |
1574 | {\r | |
1575 | UINTN LoopCounter;\r | |
1576 | UINTN Count;\r | |
1577 | ParamType CurrentItemType;\r | |
1578 | SHELL_PARAM_PACKAGE *CurrentItemPackage;\r | |
1579 | BOOLEAN GetItemValue;\r | |
1580 | \r | |
1581 | CurrentItemPackage = NULL;\r | |
1582 | \r | |
1583 | //\r | |
1584 | // ASSERTs\r | |
1585 | //\r | |
1586 | ASSERT(CheckList != NULL);\r | |
1587 | ASSERT(Argv != NULL);\r | |
1588 | \r | |
1589 | Count = 0;\r | |
1590 | GetItemValue = FALSE;\r | |
1591 | \r | |
1592 | //\r | |
1593 | // If there is only 1 item we dont need to do anything\r | |
1594 | //\r | |
1595 | if (Argc <= 1) {\r | |
1596 | *CheckPackage = NULL;\r | |
1597 | return (EFI_SUCCESS);\r | |
1598 | }\r | |
1599 | \r | |
1600 | //\r | |
1601 | // initialize the linked list\r | |
1602 | //\r | |
1603 | *CheckPackage = (LIST_ENTRY*)AllocateZeroPool(sizeof(LIST_ENTRY));\r | |
1604 | InitializeListHead(*CheckPackage);\r | |
1605 | \r | |
1606 | //\r | |
1607 | // loop through each of the arguments\r | |
1608 | //\r | |
1609 | for (LoopCounter = 0 ; LoopCounter < Argc ; ++LoopCounter) {\r | |
1610 | if (Argv[LoopCounter] == NULL) {\r | |
1611 | //\r | |
1612 | // do nothing for NULL argv\r | |
1613 | //\r | |
d2b4564b | 1614 | } else if (InternalIsOnCheckList(Argv[LoopCounter], CheckList, &CurrentItemType) == TRUE) {\r |
94b17fa1 | 1615 | //\r |
1616 | // this is a flag\r | |
1617 | //\r | |
1618 | CurrentItemPackage = AllocatePool(sizeof(SHELL_PARAM_PACKAGE));\r | |
1619 | ASSERT(CurrentItemPackage != NULL);\r | |
1620 | CurrentItemPackage->Name = AllocatePool(StrSize(Argv[LoopCounter]));\r | |
1621 | ASSERT(CurrentItemPackage->Name != NULL);\r | |
1622 | StrCpy(CurrentItemPackage->Name, Argv[LoopCounter]);\r | |
1623 | CurrentItemPackage->Type = CurrentItemType;\r | |
1624 | CurrentItemPackage->OriginalPosition = (UINTN)(-1);\r | |
b1f95a06 | 1625 | CurrentItemPackage->Value = NULL;\r |
94b17fa1 | 1626 | \r |
1627 | //\r | |
1628 | // Does this flag require a value\r | |
1629 | //\r | |
1630 | if (CurrentItemPackage->Type == TypeValue) {\r | |
1631 | //\r | |
1632 | // trigger the next loop to populate the value of this item\r | |
1633 | //\r | |
1634 | GetItemValue = TRUE; \r | |
1635 | } else {\r | |
1636 | //\r | |
1637 | // this item has no value expected; we are done\r | |
1638 | //\r | |
b1f95a06 | 1639 | InsertHeadList(*CheckPackage, (LIST_ENTRY*)CurrentItemPackage);\r |
94b17fa1 | 1640 | }\r |
b1f95a06 | 1641 | } else if (GetItemValue == TRUE && InternalIsFlag(Argv[LoopCounter]) == FALSE) {\r |
1642 | ASSERT(CurrentItemPackage != NULL);\r | |
1643 | //\r | |
1644 | // get the item VALUE for the previous flag\r | |
1645 | //\r | |
1646 | GetItemValue = FALSE;\r | |
1647 | CurrentItemPackage->Value = AllocateZeroPool(StrSize(Argv[LoopCounter]));\r | |
1648 | ASSERT(CurrentItemPackage->Value != NULL);\r | |
1649 | StrCpy(CurrentItemPackage->Value, Argv[LoopCounter]);\r | |
1650 | InsertHeadList(*CheckPackage, (LIST_ENTRY*)CurrentItemPackage);\r | |
1651 | } else if (InternalIsFlag(Argv[LoopCounter]) == FALSE) {\r | |
1652 | //\r | |
1653 | // add this one as a non-flag\r | |
1654 | //\r | |
1655 | CurrentItemPackage = AllocatePool(sizeof(SHELL_PARAM_PACKAGE));\r | |
1656 | ASSERT(CurrentItemPackage != NULL);\r | |
1657 | CurrentItemPackage->Name = NULL;\r | |
1658 | CurrentItemPackage->Type = TypePosition;\r | |
1659 | CurrentItemPackage->Value = AllocatePool(StrSize(Argv[LoopCounter]));\r | |
1660 | ASSERT(CurrentItemPackage->Value != NULL);\r | |
1661 | StrCpy(CurrentItemPackage->Value, Argv[LoopCounter]);\r | |
1662 | CurrentItemPackage->OriginalPosition = Count++;\r | |
1663 | InsertHeadList(*CheckPackage, (LIST_ENTRY*)CurrentItemPackage);\r | |
94b17fa1 | 1664 | } else if (ProblemParam) {\r |
1665 | //\r | |
1666 | // this was a non-recognised flag... error!\r | |
1667 | //\r | |
d2b4564b | 1668 | *ProblemParam = AllocatePool(StrSize(Argv[LoopCounter]));\r |
1669 | ASSERT(*ProblemParam != NULL);\r | |
1670 | StrCpy(*ProblemParam, Argv[LoopCounter]);\r | |
94b17fa1 | 1671 | ShellCommandLineFreeVarList(*CheckPackage);\r |
1672 | *CheckPackage = NULL;\r | |
1673 | return (EFI_VOLUME_CORRUPTED);\r | |
1674 | } else {\r | |
1675 | ShellCommandLineFreeVarList(*CheckPackage);\r | |
1676 | *CheckPackage = NULL;\r | |
1677 | return (EFI_VOLUME_CORRUPTED);\r | |
1678 | }\r | |
1679 | }\r | |
1680 | //\r | |
1681 | // support for AutoPageBreak\r | |
1682 | //\r | |
1683 | if (AutoPageBreak && ShellCommandLineGetFlag(*CheckPackage, L"-b")) {\r | |
1684 | ShellSetPageBreakMode(TRUE);\r | |
1685 | }\r | |
1686 | return (EFI_SUCCESS);\r | |
1687 | }\r | |
1688 | \r | |
1689 | /**\r | |
1690 | Checks the command line arguments passed against the list of valid ones. \r | |
1691 | Optionally removes NULL values first.\r | |
1692 | \r | |
1693 | If no initialization is required, then return RETURN_SUCCESS.\r | |
1694 | \r | |
1695 | @param CheckList pointer to list of parameters to check\r | |
1696 | @param CheckPackage pointer to pointer to list checked values\r | |
1697 | @param ProblemParam optional pointer to pointer to unicode string for \r | |
1698 | the paramater that caused failure.\r | |
1699 | @param AutoPageBreak will automatically set PageBreakEnabled for "b" parameter\r | |
1700 | \r | |
1701 | @retval EFI_SUCCESS The operation completed sucessfully.\r | |
1702 | @retval EFI_OUT_OF_RESOURCES A memory allocation failed\r | |
1703 | @retval EFI_INVALID_PARAMETER A parameter was invalid\r | |
1704 | @retval EFI_VOLUME_CORRUPTED the command line was corrupt. an argument was \r | |
1705 | duplicated. the duplicated command line argument \r | |
1706 | was returned in ProblemParam if provided.\r | |
1707 | @retval EFI_DEVICE_ERROR the commands contained 2 opposing arguments. one\r | |
1708 | of the command line arguments was returned in \r | |
1709 | ProblemParam if provided.\r | |
1710 | @retval EFI_NOT_FOUND a argument required a value that was missing. \r | |
1711 | the invalid command line argument was returned in\r | |
1712 | ProblemParam if provided.\r | |
1713 | **/\r | |
1714 | EFI_STATUS\r | |
1715 | EFIAPI\r | |
1716 | ShellCommandLineParse (\r | |
1717 | IN CONST SHELL_PARAM_ITEM *CheckList,\r | |
1718 | OUT LIST_ENTRY **CheckPackage,\r | |
1719 | OUT CHAR16 **ProblemParam OPTIONAL,\r | |
1720 | IN BOOLEAN AutoPageBreak\r | |
1721 | )\r | |
1722 | {\r | |
1723 | // \r | |
1724 | // ASSERT that CheckList and CheckPackage aren't NULL\r | |
1725 | //\r | |
1726 | ASSERT(CheckList != NULL);\r | |
1727 | ASSERT(CheckPackage != NULL);\r | |
1728 | \r | |
1729 | // \r | |
1730 | // Check for UEFI Shell 2.0 protocols\r | |
1731 | //\r | |
1732 | if (mEfiShellParametersProtocol != NULL) {\r | |
1733 | return (InternalCommandLineParse(CheckList, \r | |
1734 | CheckPackage, \r | |
1735 | ProblemParam, \r | |
1736 | AutoPageBreak, \r | |
08d7f8e8 | 1737 | (CONST CHAR16**) mEfiShellParametersProtocol->Argv,\r |
94b17fa1 | 1738 | mEfiShellParametersProtocol->Argc ));\r |
1739 | }\r | |
1740 | \r | |
1741 | // \r | |
1742 | // ASSERT That EFI Shell is not required\r | |
1743 | //\r | |
1744 | ASSERT (mEfiShellInterface != NULL);\r | |
1745 | return (InternalCommandLineParse(CheckList, \r | |
1746 | CheckPackage, \r | |
1747 | ProblemParam, \r | |
1748 | AutoPageBreak, \r | |
08d7f8e8 | 1749 | (CONST CHAR16**) mEfiShellInterface->Argv,\r |
94b17fa1 | 1750 | mEfiShellInterface->Argc ));\r |
1751 | }\r | |
1752 | \r | |
1753 | /**\r | |
1754 | Frees shell variable list that was returned from ShellCommandLineParse.\r | |
1755 | \r | |
1756 | This function will free all the memory that was used for the CheckPackage\r | |
1757 | list of postprocessed shell arguments.\r | |
1758 | \r | |
1759 | this function has no return value.\r | |
1760 | \r | |
1761 | if CheckPackage is NULL, then return\r | |
1762 | \r | |
1763 | @param CheckPackage the list to de-allocate\r | |
1764 | **/\r | |
1765 | VOID\r | |
1766 | EFIAPI\r | |
1767 | ShellCommandLineFreeVarList (\r | |
1768 | IN LIST_ENTRY *CheckPackage\r | |
1769 | )\r | |
1770 | {\r | |
1771 | LIST_ENTRY *Node;\r | |
1772 | \r | |
1773 | //\r | |
1774 | // check for CheckPackage == NULL\r | |
1775 | //\r | |
1776 | if (CheckPackage == NULL) {\r | |
1777 | return;\r | |
1778 | }\r | |
1779 | \r | |
1780 | //\r | |
1781 | // for each node in the list\r | |
1782 | //\r | |
1783 | for (Node = GetFirstNode(CheckPackage); Node != CheckPackage ; Node = GetFirstNode(CheckPackage)) {\r | |
1784 | //\r | |
1785 | // Remove it from the list\r | |
1786 | //\r | |
1787 | RemoveEntryList(Node);\r | |
1788 | \r | |
1789 | //\r | |
1790 | // if it has a name free the name\r | |
1791 | //\r | |
1792 | if (((SHELL_PARAM_PACKAGE*)Node)->Name != NULL) {\r | |
1793 | FreePool(((SHELL_PARAM_PACKAGE*)Node)->Name);\r | |
1794 | }\r | |
1795 | \r | |
1796 | //\r | |
1797 | // if it has a value free the value\r | |
1798 | //\r | |
1799 | if (((SHELL_PARAM_PACKAGE*)Node)->Value != NULL) {\r | |
1800 | FreePool(((SHELL_PARAM_PACKAGE*)Node)->Value);\r | |
1801 | }\r | |
1802 | \r | |
1803 | //\r | |
1804 | // free the node structure\r | |
1805 | //\r | |
1806 | FreePool((SHELL_PARAM_PACKAGE*)Node);\r | |
1807 | }\r | |
1808 | //\r | |
1809 | // free the list head node\r | |
1810 | //\r | |
1811 | FreePool(CheckPackage);\r | |
1812 | }\r | |
1813 | /**\r | |
1814 | Checks for presence of a flag parameter\r | |
1815 | \r | |
1816 | flag arguments are in the form of "-<Key>" or "/<Key>", but do not have a value following the key\r | |
1817 | \r | |
1818 | if CheckPackage is NULL then return FALSE.\r | |
1819 | if KeyString is NULL then ASSERT()\r | |
1820 | \r | |
1821 | @param CheckPackage The package of parsed command line arguments\r | |
1822 | @param KeyString the Key of the command line argument to check for\r | |
1823 | \r | |
1824 | @retval TRUE the flag is on the command line\r | |
1825 | @retval FALSE the flag is not on the command line\r | |
1826 | **/\r | |
1827 | BOOLEAN\r | |
1828 | EFIAPI\r | |
1829 | ShellCommandLineGetFlag (\r | |
1830 | IN CONST LIST_ENTRY *CheckPackage,\r | |
1831 | IN CHAR16 *KeyString\r | |
1832 | )\r | |
1833 | {\r | |
1834 | LIST_ENTRY *Node;\r | |
1835 | \r | |
1836 | //\r | |
1837 | // ASSERT that both CheckPackage and KeyString aren't NULL\r | |
1838 | //\r | |
1839 | ASSERT(KeyString != NULL);\r | |
1840 | \r | |
1841 | //\r | |
1842 | // return FALSE for no package\r | |
1843 | //\r | |
1844 | if (CheckPackage == NULL) {\r | |
1845 | return (FALSE);\r | |
1846 | }\r | |
1847 | \r | |
1848 | //\r | |
1849 | // enumerate through the list of parametrs\r | |
1850 | //\r | |
323f53ff | 1851 | for (Node = GetFirstNode(CheckPackage) ; !IsNull (CheckPackage, Node) ; Node = GetNextNode(CheckPackage, Node) ) {\r |
94b17fa1 | 1852 | //\r |
1853 | // If the Name matches, return TRUE (and there may be NULL name)\r | |
1854 | //\r | |
1855 | if (((SHELL_PARAM_PACKAGE*)Node)->Name != NULL) {\r | |
1856 | if (StrCmp(KeyString, ((SHELL_PARAM_PACKAGE*)Node)->Name) == 0) {\r | |
1857 | return (TRUE);\r | |
1858 | }\r | |
1859 | }\r | |
1860 | }\r | |
1861 | return (FALSE);\r | |
1862 | }\r | |
1863 | /**\r | |
1864 | returns value from command line argument\r | |
1865 | \r | |
1866 | value parameters are in the form of "-<Key> value" or "/<Key> value"\r | |
1867 | \r | |
1868 | if CheckPackage is NULL, then return NULL;\r | |
1869 | \r | |
1870 | @param CheckPackage The package of parsed command line arguments\r | |
1871 | @param KeyString the Key of the command line argument to check for\r | |
1872 | \r | |
1873 | @retval NULL the flag is not on the command line\r | |
1874 | @return !=NULL pointer to unicode string of the value\r | |
1875 | **/\r | |
1876 | CONST CHAR16*\r | |
1877 | EFIAPI\r | |
1878 | ShellCommandLineGetValue (\r | |
1879 | IN CONST LIST_ENTRY *CheckPackage,\r | |
1880 | IN CHAR16 *KeyString\r | |
1881 | )\r | |
1882 | {\r | |
1883 | LIST_ENTRY *Node;\r | |
1884 | \r | |
1885 | //\r | |
1886 | // check for CheckPackage == NULL\r | |
1887 | //\r | |
1888 | if (CheckPackage == NULL) {\r | |
1889 | return (NULL);\r | |
1890 | }\r | |
1891 | \r | |
1892 | //\r | |
1893 | // enumerate through the list of parametrs\r | |
1894 | //\r | |
323f53ff | 1895 | for (Node = GetFirstNode(CheckPackage) ; !IsNull (CheckPackage, Node) ; Node = GetNextNode(CheckPackage, Node) ) {\r |
94b17fa1 | 1896 | //\r |
1897 | // If the Name matches, return the value (name can be NULL)\r | |
1898 | //\r | |
1899 | if (((SHELL_PARAM_PACKAGE*)Node)->Name != NULL) {\r | |
1900 | if (StrCmp(KeyString, ((SHELL_PARAM_PACKAGE*)Node)->Name) == 0) {\r | |
1901 | return (((SHELL_PARAM_PACKAGE*)Node)->Value);\r | |
1902 | }\r | |
1903 | }\r | |
1904 | }\r | |
1905 | return (NULL);\r | |
1906 | }\r | |
1907 | /**\r | |
1908 | returns raw value from command line argument\r | |
1909 | \r | |
1910 | raw value parameters are in the form of "value" in a specific position in the list\r | |
1911 | \r | |
1912 | if CheckPackage is NULL, then return NULL;\r | |
1913 | \r | |
1914 | @param CheckPackage The package of parsed command line arguments\r | |
1915 | @param Position the position of the value \r | |
1916 | \r | |
1917 | @retval NULL the flag is not on the command line\r | |
1918 | @return !=NULL pointer to unicode string of the value\r | |
1919 | **/\r | |
1920 | CONST CHAR16*\r | |
1921 | EFIAPI\r | |
1922 | ShellCommandLineGetRawValue (\r | |
1923 | IN CONST LIST_ENTRY *CheckPackage,\r | |
1924 | IN UINT32 Position\r | |
1925 | )\r | |
1926 | {\r | |
1927 | LIST_ENTRY *Node;\r | |
1928 | \r | |
1929 | //\r | |
1930 | // check for CheckPackage == NULL\r | |
1931 | //\r | |
1932 | if (CheckPackage == NULL) {\r | |
1933 | return (NULL);\r | |
1934 | }\r | |
1935 | \r | |
1936 | //\r | |
1937 | // enumerate through the list of parametrs\r | |
1938 | //\r | |
323f53ff | 1939 | for (Node = GetFirstNode(CheckPackage) ; !IsNull (CheckPackage, Node) ; Node = GetNextNode(CheckPackage, Node) ) {\r |
94b17fa1 | 1940 | //\r |
1941 | // If the position matches, return the value\r | |
1942 | //\r | |
1943 | if (((SHELL_PARAM_PACKAGE*)Node)->OriginalPosition == Position) {\r | |
1944 | return (((SHELL_PARAM_PACKAGE*)Node)->Value);\r | |
1945 | }\r | |
1946 | }\r | |
1947 | return (NULL);\r | |
b1f95a06 | 1948 | }\r |
975136ab | 1949 | /**\r |
1950 | This is a find and replace function. it will return the NewString as a copy of \r | |
1951 | SourceString with each instance of FindTarget replaced with ReplaceWith.\r | |
1952 | \r | |
1953 | If the string would grow bigger than NewSize it will halt and return error.\r | |
1954 | \r | |
1955 | @param[in] SourceString String with source buffer\r | |
1956 | @param[in][out] NewString String with resultant buffer\r | |
1957 | @param[in] NewSize Size in bytes of NewString\r | |
1958 | @param[in] FindTarget String to look for\r | |
1959 | @param[in[ ReplaceWith String to replace FindTarget with\r | |
1960 | \r | |
1961 | @retval EFI_INVALID_PARAMETER SourceString was NULL\r | |
1962 | @retval EFI_INVALID_PARAMETER NewString was NULL\r | |
1963 | @retval EFI_INVALID_PARAMETER FindTarget was NULL\r | |
1964 | @retval EFI_INVALID_PARAMETER ReplaceWith was NULL\r | |
1965 | @retval EFI_INVALID_PARAMETER FindTarget had length < 1\r | |
1966 | @retval EFI_INVALID_PARAMETER SourceString had length < 1\r | |
1967 | @retval EFI_BUFFER_TOO_SMALL NewSize was less than the minimum size to hold \r | |
1968 | the new string (truncation occurred)\r | |
1969 | @retval EFI_SUCCESS the string was sucessfully copied with replacement\r | |
1970 | **/\r | |
1971 | \r | |
1972 | EFI_STATUS\r | |
1973 | EFIAPI\r | |
1974 | CopyReplace(\r | |
1975 | IN CHAR16 CONST *SourceString,\r | |
1976 | IN CHAR16 *NewString,\r | |
1977 | IN UINTN NewSize,\r | |
1978 | IN CONST CHAR16 *FindTarget,\r | |
1979 | IN CONST CHAR16 *ReplaceWith\r | |
1980 | ){\r | |
1981 | if ( (SourceString == NULL)\r | |
1982 | || (NewString == NULL)\r | |
1983 | || (FindTarget == NULL)\r | |
1984 | || (ReplaceWith == NULL)\r | |
1985 | || (StrLen(FindTarget) < 1)\r | |
1986 | || (StrLen(SourceString) < 1)\r | |
1987 | ){\r | |
1988 | return (EFI_INVALID_PARAMETER);\r | |
1989 | }\r | |
1990 | NewString = SetMem16(NewString, NewSize, L'\0');\r | |
1991 | while (*SourceString != L'\0') {\r | |
1992 | if (StrnCmp(SourceString, FindTarget, StrLen(FindTarget)) == 0) {\r | |
1993 | SourceString += StrLen(FindTarget);\r | |
1994 | if (StrSize(NewString) + (StrLen(ReplaceWith)*sizeof(CHAR16)) > NewSize) {\r | |
1995 | return (EFI_BUFFER_TOO_SMALL);\r | |
1996 | }\r | |
1997 | StrCat(NewString, ReplaceWith);\r | |
1998 | } else {\r | |
1999 | if (StrSize(NewString) + sizeof(CHAR16) > NewSize) {\r | |
2000 | return (EFI_BUFFER_TOO_SMALL);\r | |
2001 | }\r | |
2002 | StrnCat(NewString, SourceString, 1);\r | |
2003 | SourceString++;\r | |
2004 | }\r | |
2005 | }\r | |
2006 | return (EFI_SUCCESS);\r | |
2007 | }\r | |
b1f95a06 | 2008 | \r |
2009 | /**\r | |
2010 | Print at a specific location on the screen.\r | |
2011 | \r | |
f1b87e7a | 2012 | This function will move the cursor to a given screen location and print the specified string\r |
b1f95a06 | 2013 | \r |
2014 | If -1 is specified for either the Row or Col the current screen location for BOTH \r | |
f1b87e7a | 2015 | will be used.\r |
b1f95a06 | 2016 | \r |
2017 | if either Row or Col is out of range for the current console, then ASSERT\r | |
2018 | if Format is NULL, then ASSERT\r | |
2019 | \r | |
2020 | In addition to the standard %-based flags as supported by UefiLib Print() this supports \r | |
2021 | the following additional flags:\r | |
2022 | %N - Set output attribute to normal\r | |
2023 | %H - Set output attribute to highlight\r | |
2024 | %E - Set output attribute to error\r | |
2025 | %B - Set output attribute to blue color\r | |
2026 | %V - Set output attribute to green color\r | |
2027 | \r | |
2028 | Note: The background color is controlled by the shell command cls.\r | |
2029 | \r | |
2030 | @param[in] Row the row to print at\r | |
2031 | @param[in] Col the column to print at\r | |
2032 | @param[in] Format the format string\r | |
2033 | \r | |
2034 | @return the number of characters printed to the screen\r | |
2035 | **/\r | |
2036 | \r | |
2037 | UINTN\r | |
2038 | EFIAPI\r | |
2039 | ShellPrintEx(\r | |
2040 | IN INT32 Col OPTIONAL,\r | |
2041 | IN INT32 Row OPTIONAL,\r | |
2042 | IN CONST CHAR16 *Format,\r | |
2043 | ...\r | |
2044 | ){\r | |
2045 | VA_LIST Marker;\r | |
2046 | UINTN BufferSize;\r | |
975136ab | 2047 | CHAR16 *PostReplaceFormat;\r |
2048 | CHAR16 *PostReplaceFormat2;\r | |
b1f95a06 | 2049 | UINTN Return;\r |
f1b87e7a | 2050 | \r |
b1f95a06 | 2051 | EFI_STATUS Status;\r |
975136ab | 2052 | UINTN NormalAttribute;\r |
2053 | CHAR16 *ResumeLocation;\r | |
2054 | CHAR16 *FormatWalker;\r | |
2055 | \r | |
2056 | VA_START (Marker, Format);\r | |
b1f95a06 | 2057 | \r |
2058 | BufferSize = (PcdGet32 (PcdUefiLibMaxPrintBufferSize) + 1) * sizeof (CHAR16);\r | |
975136ab | 2059 | PostReplaceFormat = AllocateZeroPool (BufferSize);\r |
2060 | ASSERT (PostReplaceFormat != NULL);\r | |
2061 | PostReplaceFormat2 = AllocateZeroPool (BufferSize);\r | |
2062 | ASSERT (PostReplaceFormat2 != NULL);\r | |
b1f95a06 | 2063 | \r |
975136ab | 2064 | //\r |
2065 | // Back and forth each time fixing up 1 of our flags...\r | |
2066 | //\r | |
2067 | Status = CopyReplace(Format, PostReplaceFormat, BufferSize, L"%N", L"%%N");\r | |
2068 | ASSERT_EFI_ERROR(Status);\r | |
2069 | Status = CopyReplace(PostReplaceFormat, PostReplaceFormat2, BufferSize, L"%E", L"%%E");\r | |
2070 | ASSERT_EFI_ERROR(Status);\r | |
2071 | Status = CopyReplace(PostReplaceFormat2, PostReplaceFormat, BufferSize, L"%H", L"%%H");\r | |
2072 | ASSERT_EFI_ERROR(Status);\r | |
2073 | Status = CopyReplace(PostReplaceFormat, PostReplaceFormat2, BufferSize, L"%B", L"%%B");\r | |
2074 | ASSERT_EFI_ERROR(Status);\r | |
2075 | Status = CopyReplace(PostReplaceFormat2, PostReplaceFormat, BufferSize, L"%V", L"%%V");\r | |
2076 | ASSERT_EFI_ERROR(Status);\r | |
2077 | \r | |
2078 | //\r | |
2079 | // Use the last buffer from replacing to print from...\r | |
2080 | //\r | |
2081 | Return = UnicodeVSPrint (PostReplaceFormat2, BufferSize, PostReplaceFormat, Marker);\r | |
2082 | \r | |
2083 | FreePool(PostReplaceFormat);\r | |
b1f95a06 | 2084 | \r |
2085 | if (Col != -1 && Row != -1) {\r | |
b1f95a06 | 2086 | Status = gST->ConOut->SetCursorPosition(gST->ConOut, Col, Row);\r |
2087 | ASSERT_EFI_ERROR(Status);\r | |
975136ab | 2088 | }\r |
2089 | \r | |
2090 | NormalAttribute = gST->ConOut->Mode->Attribute;\r | |
2091 | FormatWalker = PostReplaceFormat2;\r | |
2092 | while (*FormatWalker != L'\0') {\r | |
2093 | //\r | |
2094 | // Find the next attribute change request\r | |
2095 | //\r | |
2096 | ResumeLocation = StrStr(FormatWalker, L"%");\r | |
2097 | if (ResumeLocation != NULL) {\r | |
2098 | *ResumeLocation = L'\0';\r | |
2099 | }\r | |
2100 | //\r | |
2101 | // print the current FormatWalker string\r | |
2102 | //\r | |
2103 | Status = gST->ConOut->OutputString(gST->ConOut, FormatWalker);\r | |
b1f95a06 | 2104 | ASSERT_EFI_ERROR(Status);\r |
975136ab | 2105 | //\r |
2106 | // update the attribute\r | |
2107 | //\r | |
2108 | if (ResumeLocation != NULL) {\r | |
2109 | switch (*(ResumeLocation+1)) {\r | |
2110 | case (L'N'):\r | |
2111 | gST->ConOut->SetAttribute(gST->ConOut, NormalAttribute);\r | |
2112 | break;\r | |
2113 | case (L'E'):\r | |
2114 | gST->ConOut->SetAttribute(gST->ConOut, EFI_TEXT_ATTR(EFI_YELLOW, ((NormalAttribute&(BIT4|BIT5|BIT6))>>4)));\r | |
2115 | break;\r | |
2116 | case (L'H'):\r | |
2117 | gST->ConOut->SetAttribute(gST->ConOut, EFI_TEXT_ATTR(EFI_WHITE, ((NormalAttribute&(BIT4|BIT5|BIT6))>>4)));\r | |
2118 | break;\r | |
2119 | case (L'B'):\r | |
2120 | gST->ConOut->SetAttribute(gST->ConOut, EFI_TEXT_ATTR(EFI_BLUE, ((NormalAttribute&(BIT4|BIT5|BIT6))>>4)));\r | |
2121 | break;\r | |
2122 | case (L'V'):\r | |
2123 | gST->ConOut->SetAttribute(gST->ConOut, EFI_TEXT_ATTR(EFI_GREEN, ((NormalAttribute&(BIT4|BIT5|BIT6))>>4)));\r | |
2124 | break;\r | |
2125 | default:\r | |
2126 | ASSERT(FALSE);\r | |
2127 | break;\r | |
2128 | }\r | |
2129 | } else {\r | |
2130 | //\r | |
2131 | // reset to normal now...\r | |
2132 | //\r | |
2133 | gST->ConOut->SetAttribute(gST->ConOut, NormalAttribute);\r | |
2134 | break;\r | |
2135 | }\r | |
2136 | \r | |
2137 | //\r | |
2138 | // update FormatWalker to Resume + 2 (skip the % and the indicator)\r | |
2139 | //\r | |
2140 | FormatWalker = ResumeLocation + 2;\r | |
2141 | }\r | |
b1f95a06 | 2142 | \r |
975136ab | 2143 | FreePool(PostReplaceFormat2);\r |
2144 | \r | |
b1f95a06 | 2145 | return (Return);\r |
94b17fa1 | 2146 | } |