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8c71ec8f | 1 | /** @file\r |
2 | Internal file explorer functions for SecureBoot configuration module.\r | |
3 | \r | |
4 | Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>\r | |
5 | 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 "SecureBootConfigImpl.h"\r | |
16 | \r | |
17 | ///\r | |
18 | /// File system selection menu\r | |
19 | ///\r | |
20 | SECUREBOOT_MENU_OPTION FsOptionMenu = {\r | |
21 | SECUREBOOT_MENU_OPTION_SIGNATURE,\r | |
22 | {NULL},\r | |
23 | 0\r | |
24 | };\r | |
25 | \r | |
26 | ///\r | |
27 | /// Files and sub-directories in current directory menu\r | |
28 | ///\r | |
29 | SECUREBOOT_MENU_OPTION DirectoryMenu = {\r | |
30 | SECUREBOOT_MENU_OPTION_SIGNATURE,\r | |
31 | {NULL},\r | |
32 | 0\r | |
33 | };\r | |
34 | \r | |
35 | VOID *mStartOpCodeHandle = NULL;\r | |
36 | VOID *mEndOpCodeHandle = NULL;\r | |
37 | EFI_IFR_GUID_LABEL *mStartLabel = NULL;\r | |
38 | EFI_IFR_GUID_LABEL *mEndLabel = NULL;\r | |
39 | \r | |
40 | /**\r | |
41 | Duplicate a string.\r | |
42 | \r | |
43 | @param[in] Src The source string.\r | |
44 | \r | |
45 | @return A new string which is duplicated copy of the source,\r | |
46 | or NULL if there is not enough memory.\r | |
47 | \r | |
48 | **/\r | |
49 | CHAR16 *\r | |
50 | StrDuplicate (\r | |
51 | IN CHAR16 *Src\r | |
52 | )\r | |
53 | {\r | |
54 | CHAR16 *Dest;\r | |
55 | UINTN Size;\r | |
56 | \r | |
57 | Size = StrSize (Src);\r | |
58 | Dest = AllocateZeroPool (Size);\r | |
59 | ASSERT (Dest != NULL);\r | |
60 | if (Dest != NULL) {\r | |
61 | CopyMem (Dest, Src, Size);\r | |
62 | }\r | |
63 | \r | |
64 | return Dest;\r | |
65 | }\r | |
66 | \r | |
67 | /**\r | |
68 | Helper function called as part of the code needed to allocate \r | |
69 | the proper sized buffer for various EFI interfaces.\r | |
70 | \r | |
71 | @param[in, out] Status Current status\r | |
72 | @param[in, out] Buffer Current allocated buffer, or NULL\r | |
73 | @param[in] BufferSize Current buffer size needed\r | |
74 | \r | |
75 | @retval TRUE If the buffer was reallocated and the caller\r | |
76 | should try the API again.\r | |
77 | @retval FALSE The caller should not call this function again.\r | |
78 | \r | |
79 | **/\r | |
80 | BOOLEAN\r | |
81 | GrowBuffer (\r | |
82 | IN OUT EFI_STATUS *Status,\r | |
83 | IN OUT VOID **Buffer,\r | |
84 | IN UINTN BufferSize\r | |
85 | )\r | |
86 | {\r | |
87 | BOOLEAN TryAgain;\r | |
88 | \r | |
89 | //\r | |
90 | // If this is an initial request, buffer will be null with a new buffer size\r | |
91 | //\r | |
92 | if ((*Buffer == NULL) && (BufferSize != 0)) {\r | |
93 | *Status = EFI_BUFFER_TOO_SMALL;\r | |
94 | }\r | |
95 | //\r | |
96 | // If the status code is "buffer too small", resize the buffer\r | |
97 | //\r | |
98 | TryAgain = FALSE;\r | |
99 | if (*Status == EFI_BUFFER_TOO_SMALL) {\r | |
100 | \r | |
101 | if (*Buffer != NULL) {\r | |
102 | FreePool (*Buffer);\r | |
103 | }\r | |
104 | \r | |
105 | *Buffer = AllocateZeroPool (BufferSize);\r | |
106 | \r | |
107 | if (*Buffer != NULL) {\r | |
108 | TryAgain = TRUE;\r | |
109 | } else {\r | |
110 | *Status = EFI_OUT_OF_RESOURCES;\r | |
111 | }\r | |
112 | }\r | |
113 | //\r | |
114 | // If there's an error, free the buffer\r | |
115 | //\r | |
116 | if (!TryAgain && EFI_ERROR (*Status) && (*Buffer != NULL)) {\r | |
117 | FreePool (*Buffer);\r | |
118 | *Buffer = NULL;\r | |
119 | }\r | |
120 | \r | |
121 | return TryAgain;\r | |
122 | }\r | |
123 | \r | |
124 | /**\r | |
125 | Append file name to existing file name, and allocate a new buffer \r | |
126 | to hold the appended result.\r | |
127 | \r | |
128 | @param[in] Str1 The existing file name\r | |
129 | @param[in] Str2 The file name to be appended\r | |
130 | \r | |
131 | @return A new string with appended result.\r | |
132 | \r | |
133 | **/\r | |
134 | CHAR16 *\r | |
135 | AppendFileName (\r | |
136 | IN CHAR16 *Str1,\r | |
137 | IN CHAR16 *Str2\r | |
138 | )\r | |
139 | {\r | |
140 | UINTN Size1;\r | |
141 | UINTN Size2;\r | |
142 | CHAR16 *Str;\r | |
143 | CHAR16 *TmpStr;\r | |
144 | CHAR16 *Ptr;\r | |
145 | CHAR16 *LastSlash;\r | |
146 | \r | |
147 | Size1 = StrSize (Str1);\r | |
148 | Size2 = StrSize (Str2);\r | |
149 | Str = AllocateZeroPool (Size1 + Size2 + sizeof (CHAR16));\r | |
150 | ASSERT (Str != NULL);\r | |
151 | \r | |
152 | TmpStr = AllocateZeroPool (Size1 + Size2 + sizeof (CHAR16)); \r | |
153 | ASSERT (TmpStr != NULL);\r | |
154 | \r | |
155 | StrCat (Str, Str1);\r | |
156 | if (!((*Str == '\\') && (*(Str + 1) == 0))) {\r | |
157 | StrCat (Str, L"\\");\r | |
158 | }\r | |
159 | \r | |
160 | StrCat (Str, Str2);\r | |
161 | \r | |
162 | Ptr = Str;\r | |
163 | LastSlash = Str;\r | |
164 | while (*Ptr != 0) {\r | |
165 | if (*Ptr == '\\' && *(Ptr + 1) == '.' && *(Ptr + 2) == '.' && *(Ptr + 3) == L'\\') {\r | |
166 | //\r | |
167 | // Convert "\Name\..\" to "\"\r | |
168 | // DO NOT convert the .. if it is at the end of the string. This will\r | |
169 | // break the .. behavior in changing directories.\r | |
170 | //\r | |
171 | \r | |
172 | //\r | |
173 | // Use TmpStr as a backup, as StrCpy in BaseLib does not handle copy of two strings \r | |
174 | // that overlap.\r | |
175 | //\r | |
176 | StrCpy (TmpStr, Ptr + 3);\r | |
177 | StrCpy (LastSlash, TmpStr);\r | |
178 | Ptr = LastSlash;\r | |
179 | } else if (*Ptr == '\\' && *(Ptr + 1) == '.' && *(Ptr + 2) == '\\') {\r | |
180 | //\r | |
181 | // Convert a "\.\" to a "\"\r | |
182 | //\r | |
183 | \r | |
184 | //\r | |
185 | // Use TmpStr as a backup, as StrCpy in BaseLib does not handle copy of two strings \r | |
186 | // that overlap.\r | |
187 | //\r | |
188 | StrCpy (TmpStr, Ptr + 2);\r | |
189 | StrCpy (Ptr, TmpStr);\r | |
190 | Ptr = LastSlash;\r | |
191 | } else if (*Ptr == '\\') {\r | |
192 | LastSlash = Ptr;\r | |
193 | }\r | |
194 | \r | |
195 | Ptr++;\r | |
196 | }\r | |
197 | \r | |
198 | FreePool (TmpStr);\r | |
199 | \r | |
200 | return Str;\r | |
201 | }\r | |
202 | \r | |
203 | /**\r | |
204 | Create a SECUREBOOT_MENU_ENTRY, and stores it in a buffer allocated from the pool.\r | |
205 | \r | |
206 | @return The new menu entry or NULL of error happens.\r | |
207 | \r | |
208 | **/\r | |
209 | SECUREBOOT_MENU_ENTRY *\r | |
210 | CreateMenuEntry (\r | |
211 | VOID\r | |
212 | )\r | |
213 | {\r | |
214 | SECUREBOOT_MENU_ENTRY *MenuEntry;\r | |
215 | UINTN ContextSize;\r | |
216 | \r | |
217 | //\r | |
218 | // Create new menu entry\r | |
219 | //\r | |
220 | MenuEntry = AllocateZeroPool (sizeof (SECUREBOOT_MENU_ENTRY));\r | |
221 | if (MenuEntry == NULL) {\r | |
222 | return NULL;\r | |
223 | }\r | |
224 | \r | |
225 | ContextSize = sizeof (SECUREBOOT_FILE_CONTEXT);\r | |
226 | MenuEntry->FileContext = AllocateZeroPool (ContextSize);\r | |
227 | if (MenuEntry->FileContext == NULL) {\r | |
228 | FreePool (MenuEntry);\r | |
229 | return NULL;\r | |
230 | }\r | |
231 | \r | |
232 | MenuEntry->Signature = SECUREBOOT_MENU_ENTRY_SIGNATURE;\r | |
233 | \r | |
234 | return MenuEntry;\r | |
235 | }\r | |
236 | \r | |
237 | /**\r | |
238 | Get Menu Entry from the Menu Entry List by MenuNumber.\r | |
239 | \r | |
240 | If MenuNumber is great or equal to the number of Menu\r | |
241 | Entry in the list, then ASSERT.\r | |
242 | \r | |
243 | @param[in] MenuOption The Menu Entry List to read the menu entry.\r | |
244 | @param[in] MenuNumber The index of Menu Entry.\r | |
245 | \r | |
246 | @return The Menu Entry.\r | |
247 | \r | |
248 | **/\r | |
249 | SECUREBOOT_MENU_ENTRY *\r | |
250 | GetMenuEntry (\r | |
251 | IN SECUREBOOT_MENU_OPTION *MenuOption,\r | |
252 | IN UINTN MenuNumber\r | |
253 | )\r | |
254 | {\r | |
255 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
256 | UINTN Index;\r | |
257 | LIST_ENTRY *List;\r | |
258 | \r | |
259 | ASSERT (MenuNumber < MenuOption->MenuNumber);\r | |
260 | \r | |
261 | List = MenuOption->Head.ForwardLink;\r | |
262 | for (Index = 0; Index < MenuNumber; Index++) {\r | |
263 | List = List->ForwardLink;\r | |
264 | }\r | |
265 | \r | |
266 | NewMenuEntry = CR (List, SECUREBOOT_MENU_ENTRY, Link, SECUREBOOT_MENU_ENTRY_SIGNATURE);\r | |
267 | \r | |
268 | return NewMenuEntry;\r | |
269 | }\r | |
270 | \r | |
271 | /**\r | |
272 | Create string tokens for a menu from its help strings and display strings.\r | |
273 | \r | |
274 | @param[in] HiiHandle Hii Handle of the package to be updated.\r | |
275 | @param[in] MenuOption The Menu whose string tokens need to be created.\r | |
276 | \r | |
277 | **/\r | |
278 | VOID\r | |
279 | CreateMenuStringToken (\r | |
280 | IN EFI_HII_HANDLE HiiHandle,\r | |
281 | IN SECUREBOOT_MENU_OPTION *MenuOption\r | |
282 | )\r | |
283 | {\r | |
284 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
285 | UINTN Index;\r | |
286 | \r | |
287 | for (Index = 0; Index < MenuOption->MenuNumber; Index++) {\r | |
288 | NewMenuEntry = GetMenuEntry (MenuOption, Index);\r | |
289 | \r | |
290 | NewMenuEntry->DisplayStringToken = HiiSetString (\r | |
291 | HiiHandle,\r | |
292 | 0,\r | |
293 | NewMenuEntry->DisplayString,\r | |
294 | NULL\r | |
295 | );\r | |
296 | \r | |
297 | if (NewMenuEntry->HelpString == NULL) {\r | |
298 | NewMenuEntry->HelpStringToken = NewMenuEntry->DisplayStringToken;\r | |
299 | } else {\r | |
300 | NewMenuEntry->HelpStringToken = HiiSetString (\r | |
301 | HiiHandle,\r | |
302 | 0,\r | |
303 | NewMenuEntry->HelpString,\r | |
304 | NULL\r | |
305 | );\r | |
306 | }\r | |
307 | }\r | |
308 | }\r | |
309 | \r | |
310 | /**\r | |
311 | Free up all resources allocated for a SECUREBOOT_MENU_ENTRY.\r | |
312 | \r | |
313 | @param[in, out] MenuEntry A pointer to SECUREBOOT_MENU_ENTRY.\r | |
314 | \r | |
315 | **/\r | |
316 | VOID\r | |
317 | DestroyMenuEntry (\r | |
318 | IN OUT SECUREBOOT_MENU_ENTRY *MenuEntry\r | |
319 | )\r | |
320 | {\r | |
321 | SECUREBOOT_FILE_CONTEXT *FileContext;\r | |
322 | \r | |
323 | \r | |
324 | FileContext = (SECUREBOOT_FILE_CONTEXT *) MenuEntry->FileContext;\r | |
325 | \r | |
326 | if (!FileContext->IsRoot) {\r | |
327 | FreePool (FileContext->DevicePath);\r | |
328 | } else {\r | |
329 | if (FileContext->FHandle != NULL) {\r | |
330 | FileContext->FHandle->Close (FileContext->FHandle);\r | |
331 | }\r | |
332 | }\r | |
333 | \r | |
334 | if (FileContext->FileName != NULL) {\r | |
335 | FreePool (FileContext->FileName);\r | |
336 | }\r | |
337 | if (FileContext->Info != NULL) {\r | |
338 | FreePool (FileContext->Info);\r | |
339 | }\r | |
340 | \r | |
341 | FreePool (FileContext);\r | |
342 | \r | |
343 | FreePool (MenuEntry->DisplayString);\r | |
344 | if (MenuEntry->HelpString != NULL) {\r | |
345 | FreePool (MenuEntry->HelpString);\r | |
346 | }\r | |
347 | \r | |
348 | FreePool (MenuEntry);\r | |
349 | }\r | |
350 | \r | |
351 | /**\r | |
352 | Free resources allocated in Allocate Rountine.\r | |
353 | \r | |
354 | @param[in, out] MenuOption Menu to be freed\r | |
355 | \r | |
356 | **/\r | |
357 | VOID\r | |
358 | FreeMenu (\r | |
359 | IN OUT SECUREBOOT_MENU_OPTION *MenuOption\r | |
360 | )\r | |
361 | {\r | |
362 | SECUREBOOT_MENU_ENTRY *MenuEntry;\r | |
363 | while (!IsListEmpty (&MenuOption->Head)) {\r | |
364 | MenuEntry = CR (\r | |
365 | MenuOption->Head.ForwardLink,\r | |
366 | SECUREBOOT_MENU_ENTRY,\r | |
367 | Link,\r | |
368 | SECUREBOOT_MENU_ENTRY_SIGNATURE\r | |
369 | );\r | |
370 | RemoveEntryList (&MenuEntry->Link);\r | |
371 | DestroyMenuEntry (MenuEntry);\r | |
372 | }\r | |
373 | MenuOption->MenuNumber = 0;\r | |
374 | }\r | |
375 | \r | |
376 | /**\r | |
377 | This function gets the file information from an open file descriptor, and stores it\r | |
378 | in a buffer allocated from pool.\r | |
379 | \r | |
380 | @param[in] FHand File Handle.\r | |
381 | \r | |
382 | @return A pointer to a buffer with file information or NULL is returned\r | |
383 | \r | |
384 | **/\r | |
385 | EFI_FILE_INFO *\r | |
386 | FileInfo (\r | |
387 | IN EFI_FILE_HANDLE FHand\r | |
388 | )\r | |
389 | {\r | |
390 | EFI_STATUS Status;\r | |
391 | EFI_FILE_INFO *Buffer;\r | |
392 | UINTN BufferSize;\r | |
393 | \r | |
394 | //\r | |
395 | // Initialize for GrowBuffer loop\r | |
396 | //\r | |
397 | Buffer = NULL;\r | |
398 | BufferSize = SIZE_OF_EFI_FILE_INFO + 200;\r | |
399 | \r | |
400 | //\r | |
401 | // Call the real function\r | |
402 | //\r | |
403 | while (GrowBuffer (&Status, (VOID **) &Buffer, BufferSize)) {\r | |
404 | Status = FHand->GetInfo (\r | |
405 | FHand,\r | |
406 | &gEfiFileInfoGuid,\r | |
407 | &BufferSize,\r | |
408 | Buffer\r | |
409 | );\r | |
410 | }\r | |
411 | \r | |
412 | return Buffer;\r | |
413 | }\r | |
414 | \r | |
415 | /**\r | |
416 | This function gets the file system information from an open file descriptor,\r | |
417 | and stores it in a buffer allocated from pool.\r | |
418 | \r | |
419 | @param[in] FHand The file handle.\r | |
420 | \r | |
421 | @return A pointer to a buffer with file information.\r | |
422 | @retval NULL is returned if failed to get Vaolume Label Info.\r | |
423 | \r | |
424 | **/\r | |
425 | EFI_FILE_SYSTEM_VOLUME_LABEL *\r | |
426 | FileSystemVolumeLabelInfo (\r | |
427 | IN EFI_FILE_HANDLE FHand\r | |
428 | )\r | |
429 | {\r | |
430 | EFI_STATUS Status;\r | |
431 | EFI_FILE_SYSTEM_VOLUME_LABEL *Buffer;\r | |
432 | UINTN BufferSize;\r | |
433 | //\r | |
434 | // Initialize for GrowBuffer loop\r | |
435 | //\r | |
436 | Buffer = NULL;\r | |
437 | BufferSize = SIZE_OF_EFI_FILE_SYSTEM_VOLUME_LABEL + 200;\r | |
438 | \r | |
439 | //\r | |
440 | // Call the real function\r | |
441 | //\r | |
442 | while (GrowBuffer (&Status, (VOID **) &Buffer, BufferSize)) {\r | |
443 | Status = FHand->GetInfo (\r | |
444 | FHand,\r | |
445 | &gEfiFileSystemVolumeLabelInfoIdGuid,\r | |
446 | &BufferSize,\r | |
447 | Buffer\r | |
448 | );\r | |
449 | }\r | |
450 | \r | |
451 | return Buffer;\r | |
452 | }\r | |
453 | \r | |
454 | /**\r | |
455 | This function will open a file or directory referenced by DevicePath.\r | |
456 | \r | |
457 | This function opens a file with the open mode according to the file path. The\r | |
458 | Attributes is valid only for EFI_FILE_MODE_CREATE.\r | |
459 | \r | |
460 | @param[in, out] FilePath On input, the device path to the file. \r | |
461 | On output, the remaining device path.\r | |
462 | @param[out] FileHandle Pointer to the file handle.\r | |
463 | @param[in] OpenMode The mode to open the file with.\r | |
464 | @param[in] Attributes The file's file attributes.\r | |
465 | \r | |
466 | @retval EFI_SUCCESS The information was set.\r | |
467 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r | |
468 | @retval EFI_UNSUPPORTED Could not open the file path.\r | |
469 | @retval EFI_NOT_FOUND The specified file could not be found on the\r | |
470 | device or the file system could not be found on\r | |
471 | the device.\r | |
472 | @retval EFI_NO_MEDIA The device has no medium.\r | |
473 | @retval EFI_MEDIA_CHANGED The device has a different medium in it or the\r | |
474 | medium is no longer supported.\r | |
475 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
476 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
477 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r | |
478 | @retval EFI_ACCESS_DENIED The file was opened read only.\r | |
479 | @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the\r | |
480 | file.\r | |
481 | @retval EFI_VOLUME_FULL The volume is full.\r | |
482 | **/\r | |
483 | EFI_STATUS\r | |
484 | EFIAPI\r | |
485 | OpenFileByDevicePath(\r | |
486 | IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath,\r | |
487 | OUT EFI_FILE_HANDLE *FileHandle,\r | |
488 | IN UINT64 OpenMode,\r | |
489 | IN UINT64 Attributes\r | |
490 | )\r | |
491 | {\r | |
492 | EFI_STATUS Status;\r | |
493 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *EfiSimpleFileSystemProtocol;\r | |
494 | EFI_FILE_PROTOCOL *Handle1;\r | |
495 | EFI_FILE_PROTOCOL *Handle2;\r | |
496 | EFI_HANDLE DeviceHandle; \r | |
497 | \r | |
498 | if ((FilePath == NULL || FileHandle == NULL)) {\r | |
499 | return EFI_INVALID_PARAMETER;\r | |
500 | }\r | |
501 | \r | |
502 | Status = gBS->LocateDevicePath (\r | |
503 | &gEfiSimpleFileSystemProtocolGuid,\r | |
504 | FilePath,\r | |
505 | &DeviceHandle\r | |
506 | );\r | |
507 | if (EFI_ERROR (Status)) {\r | |
508 | return Status;\r | |
509 | }\r | |
510 | \r | |
511 | Status = gBS->OpenProtocol(\r | |
512 | DeviceHandle,\r | |
513 | &gEfiSimpleFileSystemProtocolGuid,\r | |
514 | (VOID**)&EfiSimpleFileSystemProtocol,\r | |
515 | gImageHandle,\r | |
516 | NULL,\r | |
517 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
518 | );\r | |
519 | if (EFI_ERROR (Status)) {\r | |
520 | return Status;\r | |
521 | }\r | |
522 | \r | |
523 | Status = EfiSimpleFileSystemProtocol->OpenVolume(EfiSimpleFileSystemProtocol, &Handle1);\r | |
524 | if (EFI_ERROR (Status)) {\r | |
525 | FileHandle = NULL;\r | |
526 | return Status;\r | |
527 | }\r | |
528 | \r | |
529 | //\r | |
530 | // go down directories one node at a time.\r | |
531 | //\r | |
532 | while (!IsDevicePathEnd (*FilePath)) {\r | |
533 | //\r | |
534 | // For file system access each node should be a file path component\r | |
535 | //\r | |
536 | if (DevicePathType (*FilePath) != MEDIA_DEVICE_PATH ||\r | |
537 | DevicePathSubType (*FilePath) != MEDIA_FILEPATH_DP\r | |
538 | ) {\r | |
539 | FileHandle = NULL;\r | |
540 | return (EFI_INVALID_PARAMETER);\r | |
541 | }\r | |
542 | //\r | |
543 | // Open this file path node\r | |
544 | //\r | |
545 | Handle2 = Handle1;\r | |
546 | Handle1 = NULL;\r | |
547 | \r | |
548 | //\r | |
549 | // Try to test opening an existing file\r | |
550 | //\r | |
551 | Status = Handle2->Open (\r | |
552 | Handle2,\r | |
553 | &Handle1,\r | |
554 | ((FILEPATH_DEVICE_PATH*)*FilePath)->PathName,\r | |
555 | OpenMode &~EFI_FILE_MODE_CREATE,\r | |
556 | 0\r | |
557 | );\r | |
558 | \r | |
559 | //\r | |
560 | // see if the error was that it needs to be created\r | |
561 | //\r | |
562 | if ((EFI_ERROR (Status)) && (OpenMode != (OpenMode &~EFI_FILE_MODE_CREATE))) {\r | |
563 | Status = Handle2->Open (\r | |
564 | Handle2,\r | |
565 | &Handle1,\r | |
566 | ((FILEPATH_DEVICE_PATH*)*FilePath)->PathName,\r | |
567 | OpenMode,\r | |
568 | Attributes\r | |
569 | );\r | |
570 | }\r | |
571 | //\r | |
572 | // Close the last node\r | |
573 | //\r | |
574 | Handle2->Close (Handle2);\r | |
575 | \r | |
576 | if (EFI_ERROR(Status)) {\r | |
577 | return (Status);\r | |
578 | }\r | |
579 | \r | |
580 | //\r | |
581 | // Get the next node\r | |
582 | //\r | |
583 | *FilePath = NextDevicePathNode (*FilePath);\r | |
584 | }\r | |
585 | \r | |
586 | //\r | |
587 | // This is a weak spot since if the undefined SHELL_FILE_HANDLE format changes this must change also!\r | |
588 | //\r | |
589 | *FileHandle = (VOID*)Handle1;\r | |
590 | return EFI_SUCCESS;\r | |
591 | }\r | |
592 | \r | |
593 | /**\r | |
594 | Function opens and returns a file handle to the root directory of a volume.\r | |
595 | \r | |
596 | @param[in] DeviceHandle A handle for a device\r | |
597 | \r | |
598 | @return A valid file handle or NULL if error happens.\r | |
599 | \r | |
600 | **/\r | |
601 | EFI_FILE_HANDLE\r | |
602 | OpenRoot (\r | |
603 | IN EFI_HANDLE DeviceHandle\r | |
604 | )\r | |
605 | {\r | |
606 | EFI_STATUS Status;\r | |
607 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;\r | |
608 | EFI_FILE_HANDLE File;\r | |
609 | \r | |
610 | File = NULL;\r | |
611 | \r | |
612 | //\r | |
613 | // File the file system interface to the device\r | |
614 | //\r | |
615 | Status = gBS->HandleProtocol (\r | |
616 | DeviceHandle,\r | |
617 | &gEfiSimpleFileSystemProtocolGuid,\r | |
618 | (VOID *) &Volume\r | |
619 | );\r | |
620 | \r | |
621 | //\r | |
622 | // Open the root directory of the volume\r | |
623 | //\r | |
624 | if (!EFI_ERROR (Status)) {\r | |
625 | Status = Volume->OpenVolume (\r | |
626 | Volume,\r | |
627 | &File\r | |
628 | );\r | |
629 | }\r | |
630 | //\r | |
631 | // Done\r | |
632 | //\r | |
633 | return EFI_ERROR (Status) ? NULL : File;\r | |
634 | }\r | |
635 | \r | |
636 | /**\r | |
637 | This function builds the FsOptionMenu list which records all\r | |
638 | available file system in the system. They include all instances\r | |
639 | of EFI_SIMPLE_FILE_SYSTEM_PROTOCOL, all instances of EFI_LOAD_FILE_SYSTEM\r | |
640 | and all type of legacy boot device.\r | |
641 | \r | |
642 | @retval EFI_SUCCESS Success find the file system\r | |
643 | @retval EFI_OUT_OF_RESOURCES Can not create menu entry\r | |
644 | \r | |
645 | **/\r | |
646 | EFI_STATUS\r | |
647 | FindFileSystem (\r | |
648 | VOID\r | |
649 | )\r | |
650 | {\r | |
651 | UINTN NoBlkIoHandles;\r | |
652 | UINTN NoSimpleFsHandles;\r | |
653 | UINTN NoLoadFileHandles;\r | |
654 | EFI_HANDLE *BlkIoHandle;\r | |
655 | EFI_HANDLE *SimpleFsHandle;\r | |
656 | UINT16 *VolumeLabel;\r | |
657 | EFI_BLOCK_IO_PROTOCOL *BlkIo;\r | |
658 | UINTN Index;\r | |
659 | EFI_STATUS Status;\r | |
660 | SECUREBOOT_MENU_ENTRY *MenuEntry;\r | |
661 | SECUREBOOT_FILE_CONTEXT *FileContext;\r | |
662 | UINT16 *TempStr;\r | |
663 | UINTN OptionNumber;\r | |
664 | VOID *Buffer;\r | |
665 | \r | |
666 | BOOLEAN RemovableMedia;\r | |
667 | \r | |
668 | \r | |
669 | NoSimpleFsHandles = 0;\r | |
670 | NoLoadFileHandles = 0;\r | |
671 | OptionNumber = 0;\r | |
672 | InitializeListHead (&FsOptionMenu.Head);\r | |
673 | \r | |
674 | //\r | |
675 | // Locate Handles that support BlockIo protocol\r | |
676 | //\r | |
677 | Status = gBS->LocateHandleBuffer (\r | |
678 | ByProtocol,\r | |
679 | &gEfiBlockIoProtocolGuid,\r | |
680 | NULL,\r | |
681 | &NoBlkIoHandles,\r | |
682 | &BlkIoHandle\r | |
683 | );\r | |
684 | if (!EFI_ERROR (Status)) {\r | |
685 | \r | |
686 | for (Index = 0; Index < NoBlkIoHandles; Index++) {\r | |
687 | Status = gBS->HandleProtocol (\r | |
688 | BlkIoHandle[Index],\r | |
689 | &gEfiBlockIoProtocolGuid,\r | |
690 | (VOID **) &BlkIo\r | |
691 | );\r | |
692 | \r | |
693 | if (EFI_ERROR (Status)) {\r | |
694 | continue;\r | |
695 | }\r | |
696 | \r | |
697 | //\r | |
698 | // Issue a dummy read to trigger reinstall of BlockIo protocol for removable media\r | |
699 | //\r | |
700 | if (BlkIo->Media->RemovableMedia) {\r | |
701 | Buffer = AllocateZeroPool (BlkIo->Media->BlockSize);\r | |
702 | if (NULL == Buffer) {\r | |
703 | FreePool (BlkIoHandle);\r | |
704 | return EFI_OUT_OF_RESOURCES;\r | |
705 | }\r | |
706 | \r | |
707 | BlkIo->ReadBlocks (\r | |
708 | BlkIo,\r | |
709 | BlkIo->Media->MediaId,\r | |
710 | 0,\r | |
711 | BlkIo->Media->BlockSize,\r | |
712 | Buffer\r | |
713 | );\r | |
714 | FreePool (Buffer);\r | |
715 | }\r | |
716 | }\r | |
717 | FreePool (BlkIoHandle);\r | |
718 | }\r | |
719 | \r | |
720 | //\r | |
721 | // Locate Handles that support Simple File System protocol\r | |
722 | //\r | |
723 | Status = gBS->LocateHandleBuffer (\r | |
724 | ByProtocol,\r | |
725 | &gEfiSimpleFileSystemProtocolGuid,\r | |
726 | NULL,\r | |
727 | &NoSimpleFsHandles,\r | |
728 | &SimpleFsHandle\r | |
729 | );\r | |
730 | if (!EFI_ERROR (Status)) {\r | |
731 | //\r | |
732 | // Find all the instances of the File System prototocol\r | |
733 | //\r | |
734 | for (Index = 0; Index < NoSimpleFsHandles; Index++) {\r | |
735 | Status = gBS->HandleProtocol (\r | |
736 | SimpleFsHandle[Index],\r | |
737 | &gEfiBlockIoProtocolGuid,\r | |
738 | (VOID **) &BlkIo\r | |
739 | );\r | |
740 | if (EFI_ERROR (Status)) {\r | |
741 | //\r | |
742 | // If no block IO exists assume it's NOT a removable media\r | |
743 | //\r | |
744 | RemovableMedia = FALSE;\r | |
745 | } else {\r | |
746 | //\r | |
747 | // If block IO exists check to see if it's remobable media\r | |
748 | //\r | |
749 | RemovableMedia = BlkIo->Media->RemovableMedia;\r | |
750 | }\r | |
751 | \r | |
752 | //\r | |
753 | // Allocate pool for this instance.\r | |
754 | //\r | |
755 | MenuEntry = CreateMenuEntry ();\r | |
756 | if (NULL == MenuEntry) {\r | |
757 | FreePool (SimpleFsHandle);\r | |
758 | return EFI_OUT_OF_RESOURCES;\r | |
759 | }\r | |
760 | \r | |
761 | FileContext = (SECUREBOOT_FILE_CONTEXT *) MenuEntry->FileContext;\r | |
762 | \r | |
763 | FileContext->Handle = SimpleFsHandle[Index];\r | |
764 | MenuEntry->OptionNumber = Index;\r | |
765 | FileContext->FHandle = OpenRoot (FileContext->Handle);\r | |
766 | if (FileContext->FHandle == NULL) {\r | |
767 | DestroyMenuEntry (MenuEntry);\r | |
768 | continue;\r | |
769 | }\r | |
770 | \r | |
771 | MenuEntry->HelpString = DevicePathToStr (DevicePathFromHandle (FileContext->Handle));\r | |
772 | FileContext->Info = FileSystemVolumeLabelInfo (FileContext->FHandle);\r | |
773 | FileContext->FileName = StrDuplicate (L"\\");\r | |
774 | FileContext->DevicePath = FileDevicePath (\r | |
775 | FileContext->Handle,\r | |
776 | FileContext->FileName\r | |
777 | );\r | |
778 | FileContext->IsDir = TRUE;\r | |
779 | FileContext->IsRoot = TRUE;\r | |
780 | FileContext->IsRemovableMedia = RemovableMedia;\r | |
781 | FileContext->IsLoadFile = FALSE;\r | |
782 | \r | |
783 | //\r | |
784 | // Get current file system's Volume Label\r | |
785 | //\r | |
786 | if (FileContext->Info == NULL) {\r | |
787 | VolumeLabel = L"NO FILE SYSTEM INFO";\r | |
788 | } else {\r | |
789 | if (FileContext->Info->VolumeLabel == NULL) {\r | |
790 | VolumeLabel = L"NULL VOLUME LABEL";\r | |
791 | } else {\r | |
792 | VolumeLabel = FileContext->Info->VolumeLabel;\r | |
793 | if (*VolumeLabel == 0x0000) {\r | |
794 | VolumeLabel = L"NO VOLUME LABEL";\r | |
795 | }\r | |
796 | }\r | |
797 | }\r | |
798 | \r | |
799 | TempStr = MenuEntry->HelpString;\r | |
800 | MenuEntry->DisplayString = AllocateZeroPool (MAX_CHAR);\r | |
801 | ASSERT (MenuEntry->DisplayString != NULL);\r | |
802 | UnicodeSPrint (\r | |
803 | MenuEntry->DisplayString,\r | |
804 | MAX_CHAR,\r | |
805 | L"%s, [%s]",\r | |
806 | VolumeLabel,\r | |
807 | TempStr\r | |
808 | );\r | |
809 | OptionNumber++;\r | |
810 | InsertTailList (&FsOptionMenu.Head, &MenuEntry->Link);\r | |
811 | }\r | |
812 | }\r | |
813 | \r | |
814 | if (NoSimpleFsHandles != 0) {\r | |
815 | FreePool (SimpleFsHandle);\r | |
816 | }\r | |
817 | \r | |
818 | //\r | |
819 | // Remember how many file system options are here\r | |
820 | //\r | |
821 | FsOptionMenu.MenuNumber = OptionNumber;\r | |
822 | return EFI_SUCCESS;\r | |
823 | }\r | |
824 | \r | |
825 | \r | |
826 | /**\r | |
827 | Find files under the current directory. All files and sub-directories \r | |
828 | in current directory will be stored in DirectoryMenu for future use.\r | |
829 | \r | |
830 | @param[in] MenuEntry The Menu Entry.\r | |
831 | \r | |
832 | @retval EFI_SUCCESS Get files from current dir successfully.\r | |
833 | @return Other Can't get files from current dir.\r | |
834 | \r | |
835 | **/\r | |
836 | EFI_STATUS\r | |
837 | FindFiles (\r | |
838 | IN SECUREBOOT_MENU_ENTRY *MenuEntry\r | |
839 | )\r | |
840 | {\r | |
841 | EFI_FILE_HANDLE NewDir;\r | |
842 | EFI_FILE_HANDLE Dir;\r | |
843 | EFI_FILE_INFO *DirInfo;\r | |
844 | UINTN BufferSize;\r | |
845 | UINTN DirBufferSize;\r | |
846 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
847 | SECUREBOOT_FILE_CONTEXT *FileContext;\r | |
848 | SECUREBOOT_FILE_CONTEXT *NewFileContext;\r | |
849 | UINTN Pass;\r | |
850 | EFI_STATUS Status;\r | |
851 | UINTN OptionNumber;\r | |
852 | \r | |
853 | FileContext = (SECUREBOOT_FILE_CONTEXT *) MenuEntry->FileContext;\r | |
854 | Dir = FileContext->FHandle;\r | |
855 | OptionNumber = 0;\r | |
856 | //\r | |
857 | // Open current directory to get files from it\r | |
858 | //\r | |
859 | Status = Dir->Open (\r | |
860 | Dir,\r | |
861 | &NewDir,\r | |
862 | FileContext->FileName,\r | |
863 | EFI_FILE_READ_ONLY,\r | |
864 | 0\r | |
865 | );\r | |
866 | if (!FileContext->IsRoot) {\r | |
867 | Dir->Close (Dir);\r | |
868 | }\r | |
869 | \r | |
870 | if (EFI_ERROR (Status)) {\r | |
871 | return Status;\r | |
872 | }\r | |
873 | \r | |
874 | DirInfo = FileInfo (NewDir);\r | |
875 | if (DirInfo == NULL) {\r | |
876 | return EFI_NOT_FOUND;\r | |
877 | }\r | |
878 | \r | |
879 | if ((DirInfo->Attribute & EFI_FILE_DIRECTORY) == 0) {\r | |
880 | return EFI_INVALID_PARAMETER;\r | |
881 | }\r | |
882 | \r | |
883 | FileContext->DevicePath = FileDevicePath (\r | |
884 | FileContext->Handle,\r | |
885 | FileContext->FileName\r | |
886 | );\r | |
887 | \r | |
888 | DirBufferSize = sizeof (EFI_FILE_INFO) + 1024;\r | |
889 | DirInfo = AllocateZeroPool (DirBufferSize);\r | |
890 | if (DirInfo == NULL) {\r | |
891 | return EFI_OUT_OF_RESOURCES;\r | |
892 | }\r | |
893 | \r | |
894 | //\r | |
895 | // Get all files in current directory\r | |
896 | // Pass 1 to get Directories\r | |
897 | // Pass 2 to get files that are EFI images\r | |
898 | //\r | |
899 | for (Pass = 1; Pass <= 2; Pass++) {\r | |
900 | NewDir->SetPosition (NewDir, 0);\r | |
901 | for (;;) {\r | |
902 | BufferSize = DirBufferSize;\r | |
903 | Status = NewDir->Read (NewDir, &BufferSize, DirInfo);\r | |
904 | if (EFI_ERROR (Status) || BufferSize == 0) {\r | |
905 | break;\r | |
906 | }\r | |
907 | \r | |
908 | if (((DirInfo->Attribute & EFI_FILE_DIRECTORY) != 0 && Pass == 2) ||\r | |
909 | ((DirInfo->Attribute & EFI_FILE_DIRECTORY) == 0 && Pass == 1)\r | |
910 | ) {\r | |
911 | //\r | |
912 | // Pass 1 is for Directories\r | |
913 | // Pass 2 is for file names\r | |
914 | //\r | |
915 | continue;\r | |
916 | }\r | |
917 | \r | |
918 | NewMenuEntry = CreateMenuEntry ();\r | |
919 | if (NULL == NewMenuEntry) {\r | |
920 | return EFI_OUT_OF_RESOURCES;\r | |
921 | }\r | |
922 | \r | |
923 | NewFileContext = (SECUREBOOT_FILE_CONTEXT *) NewMenuEntry->FileContext;\r | |
924 | NewFileContext->Handle = FileContext->Handle;\r | |
925 | NewFileContext->FileName = AppendFileName (\r | |
926 | FileContext->FileName,\r | |
927 | DirInfo->FileName\r | |
928 | );\r | |
929 | NewFileContext->FHandle = NewDir;\r | |
930 | NewFileContext->DevicePath = FileDevicePath (\r | |
931 | NewFileContext->Handle,\r | |
932 | NewFileContext->FileName\r | |
933 | );\r | |
934 | NewMenuEntry->HelpString = NULL;\r | |
935 | \r | |
936 | NewFileContext->IsDir = (BOOLEAN) ((DirInfo->Attribute & EFI_FILE_DIRECTORY) == EFI_FILE_DIRECTORY);\r | |
937 | if (NewFileContext->IsDir) {\r | |
938 | BufferSize = StrLen (DirInfo->FileName) * 2 + 6;\r | |
939 | NewMenuEntry->DisplayString = AllocateZeroPool (BufferSize);\r | |
940 | \r | |
941 | UnicodeSPrint (\r | |
942 | NewMenuEntry->DisplayString,\r | |
943 | BufferSize,\r | |
944 | L"<%s>",\r | |
945 | DirInfo->FileName\r | |
946 | );\r | |
947 | \r | |
948 | } else {\r | |
949 | NewMenuEntry->DisplayString = StrDuplicate (DirInfo->FileName);\r | |
950 | }\r | |
951 | \r | |
952 | NewFileContext->IsRoot = FALSE;\r | |
953 | NewFileContext->IsLoadFile = FALSE;\r | |
954 | NewFileContext->IsRemovableMedia = FALSE;\r | |
955 | \r | |
956 | NewMenuEntry->OptionNumber = OptionNumber;\r | |
957 | OptionNumber++;\r | |
958 | InsertTailList (&DirectoryMenu.Head, &NewMenuEntry->Link);\r | |
959 | }\r | |
960 | }\r | |
961 | \r | |
962 | DirectoryMenu.MenuNumber = OptionNumber;\r | |
963 | FreePool (DirInfo);\r | |
964 | return EFI_SUCCESS;\r | |
965 | }\r | |
966 | \r | |
967 | /**\r | |
968 | Refresh the global UpdateData structure.\r | |
969 | \r | |
970 | **/\r | |
971 | VOID\r | |
972 | RefreshUpdateData (\r | |
973 | VOID\r | |
974 | )\r | |
975 | {\r | |
976 | //\r | |
977 | // Free current updated date\r | |
978 | // \r | |
979 | if (mStartOpCodeHandle != NULL) {\r | |
980 | HiiFreeOpCodeHandle (mStartOpCodeHandle);\r | |
981 | }\r | |
982 | \r | |
983 | //\r | |
984 | // Create new OpCode Handle\r | |
985 | //\r | |
986 | mStartOpCodeHandle = HiiAllocateOpCodeHandle ();\r | |
987 | \r | |
988 | //\r | |
989 | // Create Hii Extend Label OpCode as the start opcode\r | |
990 | //\r | |
991 | mStartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r | |
992 | mStartOpCodeHandle,\r | |
993 | &gEfiIfrTianoGuid,\r | |
994 | NULL,\r | |
995 | sizeof (EFI_IFR_GUID_LABEL)\r | |
996 | );\r | |
997 | mStartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r | |
998 | }\r | |
999 | \r | |
1000 | /**\r | |
1001 | Update the File Explore page.\r | |
1002 | \r | |
1003 | @param[in] HiiHandle Hii Handle of the package to be updated.\r | |
1004 | @param[in] MenuOption The Menu whose string tokens need to be updated.\r | |
1005 | @param[in] FeCurrentState Current file explorer state.\r | |
1006 | \r | |
1007 | **/\r | |
1008 | VOID\r | |
1009 | UpdateFileExplorePage (\r | |
1010 | IN EFI_HII_HANDLE HiiHandle,\r | |
1011 | IN SECUREBOOT_MENU_OPTION *MenuOption,\r | |
1012 | IN FILE_EXPLORER_STATE FeCurrentState\r | |
1013 | )\r | |
1014 | {\r | |
1015 | UINTN Index;\r | |
1016 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
1017 | SECUREBOOT_FILE_CONTEXT *NewFileContext;\r | |
1018 | EFI_FORM_ID FormId;\r | |
1019 | EFI_FORM_ID FileFormId;\r | |
1020 | \r | |
1021 | if (FeCurrentState == FileExplorerStateEnrollPkFile) {\r | |
1022 | FormId = SECUREBOOT_ADD_PK_FILE_FORM_ID;\r | |
1023 | FileFormId = FORM_FILE_EXPLORER_ID_PK;\r | |
1024 | } else if (FeCurrentState == FileExplorerStateEnrollKekFile) {\r | |
1025 | FormId = FORMID_ENROLL_KEK_FORM;\r | |
1026 | FileFormId = FORM_FILE_EXPLORER_ID_KEK;\r | |
1027 | } else if (FeCurrentState == FileExplorerStateEnrollSignatureFileToDb) {\r | |
1028 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DB;\r | |
1029 | FileFormId = FORM_FILE_EXPLORER_ID_DB;\r | |
1030 | } else if (FeCurrentState == FileExplorerStateEnrollSignatureFileToDbx) {\r | |
1031 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DBX;\r | |
1032 | FileFormId = FORM_FILE_EXPLORER_ID_DBX;\r | |
1033 | } else {\r | |
1034 | return;\r | |
1035 | }\r | |
1036 | \r | |
1037 | NewMenuEntry = NULL;\r | |
1038 | NewFileContext = NULL;\r | |
1039 | \r | |
1040 | RefreshUpdateData ();\r | |
1041 | mStartLabel->Number = FORM_FILE_EXPLORER_ID;\r | |
1042 | \r | |
1043 | for (Index = 0; Index < MenuOption->MenuNumber; Index++) {\r | |
1044 | NewMenuEntry = GetMenuEntry (MenuOption, Index);\r | |
1045 | NewFileContext = (SECUREBOOT_FILE_CONTEXT *) NewMenuEntry->FileContext;\r | |
1046 | \r | |
1047 | if (NewFileContext->IsDir) {\r | |
1048 | //\r | |
1049 | // Create Text opcode for directory.\r | |
1050 | //\r | |
1051 | HiiCreateActionOpCode (\r | |
1052 | mStartOpCodeHandle,\r | |
1053 | (UINT16) (FILE_OPTION_OFFSET + Index),\r | |
1054 | NewMenuEntry->DisplayStringToken,\r | |
1055 | STRING_TOKEN (STR_NULL),\r | |
1056 | EFI_IFR_FLAG_CALLBACK,\r | |
1057 | 0\r | |
1058 | );\r | |
1059 | } else {\r | |
1060 | \r | |
1061 | //\r | |
1062 | // Create Goto opcode for file.\r | |
1063 | //\r | |
1064 | HiiCreateGotoOpCode (\r | |
1065 | mStartOpCodeHandle,\r | |
1066 | FormId,\r | |
1067 | NewMenuEntry->DisplayStringToken,\r | |
1068 | STRING_TOKEN (STR_NULL),\r | |
1069 | EFI_IFR_FLAG_CALLBACK,\r | |
1070 | (UINT16) (FILE_OPTION_OFFSET + Index)\r | |
1071 | );\r | |
1072 | }\r | |
1073 | }\r | |
1074 | \r | |
1075 | HiiUpdateForm (\r | |
1076 | HiiHandle,\r | |
1077 | &gSecureBootConfigFormSetGuid,\r | |
1078 | FileFormId,\r | |
1079 | mStartOpCodeHandle, // Label FORM_FILE_EXPLORER_ID\r | |
1080 | mEndOpCodeHandle // LABEL_END\r | |
1081 | );\r | |
1082 | }\r | |
1083 | \r | |
1084 | /**\r | |
1085 | Update the file explorer page with the refreshed file system.\r | |
1086 | \r | |
1087 | @param[in] PrivateData Module private data.\r | |
1088 | @param[in] KeyValue Key value to identify the type of data to expect.\r | |
1089 | \r | |
1090 | @retval TRUE Inform the caller to create a callback packet to exit file explorer.\r | |
1091 | @retval FALSE Indicate that there is no need to exit file explorer.\r | |
1092 | \r | |
1093 | **/\r | |
1094 | BOOLEAN\r | |
1095 | UpdateFileExplorer (\r | |
1096 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData,\r | |
1097 | IN UINT16 KeyValue\r | |
1098 | )\r | |
1099 | {\r | |
1100 | UINT16 FileOptionMask;\r | |
1101 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
1102 | SECUREBOOT_FILE_CONTEXT *NewFileContext;\r | |
1103 | EFI_FORM_ID FormId;\r | |
1104 | BOOLEAN ExitFileExplorer;\r | |
1105 | EFI_STATUS Status;\r | |
1106 | EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;\r | |
1107 | \r | |
1108 | NewMenuEntry = NULL;\r | |
1109 | NewFileContext = NULL;\r | |
1110 | ExitFileExplorer = FALSE;\r | |
1111 | FileOptionMask = (UINT16) (FILE_OPTION_MASK & KeyValue);\r | |
1112 | \r | |
1113 | if (PrivateData->FeDisplayContext == FileExplorerDisplayUnknown) {\r | |
1114 | //\r | |
1115 | // First in, display file system.\r | |
1116 | //\r | |
1117 | FreeMenu (&FsOptionMenu);\r | |
1118 | FindFileSystem ();\r | |
1119 | \r | |
1120 | CreateMenuStringToken (PrivateData->HiiHandle, &FsOptionMenu);\r | |
1121 | UpdateFileExplorePage (PrivateData->HiiHandle, &FsOptionMenu, PrivateData->FeCurrentState);\r | |
1122 | \r | |
1123 | PrivateData->FeDisplayContext = FileExplorerDisplayFileSystem;\r | |
1124 | } else {\r | |
1125 | if (PrivateData->FeDisplayContext == FileExplorerDisplayFileSystem) {\r | |
1126 | NewMenuEntry = GetMenuEntry (&FsOptionMenu, FileOptionMask);\r | |
1127 | } else if (PrivateData->FeDisplayContext == FileExplorerDisplayDirectory) {\r | |
1128 | NewMenuEntry = GetMenuEntry (&DirectoryMenu, FileOptionMask);\r | |
1129 | }\r | |
1130 | \r | |
1131 | NewFileContext = (SECUREBOOT_FILE_CONTEXT *) NewMenuEntry->FileContext;\r | |
1132 | \r | |
1133 | if (NewFileContext->IsDir ) {\r | |
1134 | PrivateData->FeDisplayContext = FileExplorerDisplayDirectory;\r | |
1135 | \r | |
1136 | RemoveEntryList (&NewMenuEntry->Link);\r | |
1137 | FreeMenu (&DirectoryMenu);\r | |
1138 | Status = FindFiles (NewMenuEntry);\r | |
1139 | if (EFI_ERROR (Status)) {\r | |
1140 | ExitFileExplorer = TRUE;\r | |
1141 | goto OnExit;\r | |
1142 | }\r | |
1143 | CreateMenuStringToken (PrivateData->HiiHandle, &DirectoryMenu);\r | |
1144 | DestroyMenuEntry (NewMenuEntry);\r | |
1145 | \r | |
1146 | UpdateFileExplorePage (PrivateData->HiiHandle, &DirectoryMenu, PrivateData->FeCurrentState);\r | |
1147 | \r | |
1148 | } else {\r | |
1149 | if (PrivateData->FeCurrentState == FileExplorerStateEnrollPkFile) {\r | |
1150 | FormId = SECUREBOOT_ADD_PK_FILE_FORM_ID;\r | |
1151 | } else if (PrivateData->FeCurrentState == FileExplorerStateEnrollKekFile) {\r | |
1152 | FormId = FORMID_ENROLL_KEK_FORM;\r | |
1153 | } else if (PrivateData->FeCurrentState == FileExplorerStateEnrollSignatureFileToDb) {\r | |
1154 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DB;\r | |
1155 | } else if (PrivateData->FeCurrentState == FileExplorerStateEnrollSignatureFileToDbx) {\r | |
1156 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DBX;\r | |
1157 | } else {\r | |
1158 | return FALSE;\r | |
1159 | }\r | |
1160 | \r | |
1161 | PrivateData->MenuEntry = NewMenuEntry;\r | |
1162 | PrivateData->FileContext->FileName = NewFileContext->FileName;\r | |
1163 | \r | |
1164 | TmpDevicePath = NewFileContext->DevicePath;\r | |
1165 | OpenFileByDevicePath (\r | |
1166 | &TmpDevicePath,\r | |
1167 | &PrivateData->FileContext->FHandle,\r | |
1168 | EFI_FILE_MODE_READ,\r | |
1169 | 0\r | |
1170 | );\r | |
1171 | \r | |
1172 | //\r | |
1173 | // Create Subtitle op-code for the display string of the option.\r | |
1174 | //\r | |
1175 | RefreshUpdateData ();\r | |
1176 | mStartLabel->Number = FormId;\r | |
1177 | \r | |
1178 | HiiCreateSubTitleOpCode (\r | |
1179 | mStartOpCodeHandle,\r | |
1180 | NewMenuEntry->DisplayStringToken,\r | |
1181 | 0,\r | |
1182 | 0,\r | |
1183 | 0\r | |
1184 | );\r | |
1185 | \r | |
1186 | HiiUpdateForm (\r | |
1187 | PrivateData->HiiHandle,\r | |
1188 | &gSecureBootConfigFormSetGuid,\r | |
1189 | FormId,\r | |
1190 | mStartOpCodeHandle, // Label FormId\r | |
1191 | mEndOpCodeHandle // LABEL_END\r | |
1192 | );\r | |
1193 | }\r | |
1194 | }\r | |
1195 | \r | |
1196 | OnExit:\r | |
1197 | return ExitFileExplorer;\r | |
1198 | }\r | |
1199 | \r | |
1200 | /**\r | |
1201 | Clean up the dynamic opcode at label and form specified by both LabelId. \r | |
1202 | \r | |
1203 | @param[in] LabelId It is both the Form ID and Label ID for opcode deletion.\r | |
1204 | @param[in] PrivateData Module private data.\r | |
1205 | \r | |
1206 | **/\r | |
1207 | VOID\r | |
1208 | CleanUpPage (\r | |
1209 | IN UINT16 LabelId,\r | |
1210 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData\r | |
1211 | )\r | |
1212 | {\r | |
1213 | RefreshUpdateData ();\r | |
1214 | \r | |
1215 | //\r | |
1216 | // Remove all op-codes from dynamic page\r | |
1217 | //\r | |
1218 | mStartLabel->Number = LabelId;\r | |
1219 | HiiUpdateForm (\r | |
1220 | PrivateData->HiiHandle,\r | |
1221 | &gSecureBootConfigFormSetGuid,\r | |
1222 | LabelId,\r | |
1223 | mStartOpCodeHandle, // Label LabelId\r | |
1224 | mEndOpCodeHandle // LABEL_END\r | |
1225 | );\r | |
1226 | }\r | |
1227 | \r |