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ecc722ad | 1 | /** @file\r |
2 | Internal file explorer functions for SecureBoot configuration module.\r | |
3 | \r | |
c2a65e23 | 4 | Copyright (c) 2012 - 2015, Intel Corporation. All rights reserved.<BR>\r |
ecc722ad | 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 | |
20333c6d | 68 | Helper function called as part of the code needed to allocate\r |
ecc722ad | 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 | |
20333c6d | 125 | Append file name to existing file name, and allocate a new buffer\r |
ecc722ad | 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 | |
c2a65e23 | 142 | UINTN BufferSize;\r |
ecc722ad | 143 | CHAR16 *Str;\r |
144 | CHAR16 *TmpStr;\r | |
145 | CHAR16 *Ptr;\r | |
146 | CHAR16 *LastSlash;\r | |
147 | \r | |
148 | Size1 = StrSize (Str1);\r | |
149 | Size2 = StrSize (Str2);\r | |
c2a65e23 ZL |
150 | BufferSize = Size1 + Size2 + sizeof (CHAR16);\r |
151 | Str = AllocateZeroPool (BufferSize);\r | |
ecc722ad | 152 | ASSERT (Str != NULL);\r |
153 | \r | |
c2a65e23 | 154 | TmpStr = AllocateZeroPool (BufferSize);\r |
ecc722ad | 155 | ASSERT (TmpStr != NULL);\r |
156 | \r | |
c2a65e23 ZL |
157 | StrCatS (Str, BufferSize / sizeof (CHAR16), Str1);\r |
158 | \r | |
ecc722ad | 159 | if (!((*Str == '\\') && (*(Str + 1) == 0))) {\r |
c2a65e23 | 160 | StrCatS (Str, BufferSize / sizeof (CHAR16), L"\\");\r |
ecc722ad | 161 | }\r |
162 | \r | |
c2a65e23 | 163 | StrCatS (Str, BufferSize / sizeof (CHAR16), Str2);\r |
ecc722ad | 164 | \r |
165 | Ptr = Str;\r | |
166 | LastSlash = Str;\r | |
167 | while (*Ptr != 0) {\r | |
168 | if (*Ptr == '\\' && *(Ptr + 1) == '.' && *(Ptr + 2) == '.' && *(Ptr + 3) == L'\\') {\r | |
169 | //\r | |
170 | // Convert "\Name\..\" to "\"\r | |
171 | // DO NOT convert the .. if it is at the end of the string. This will\r | |
172 | // break the .. behavior in changing directories.\r | |
173 | //\r | |
174 | \r | |
175 | //\r | |
c2a65e23 | 176 | // Use TmpStr as a backup, as StrCpyS in BaseLib does not handle copy of two strings\r |
ecc722ad | 177 | // that overlap.\r |
178 | //\r | |
c2a65e23 ZL |
179 | StrCpyS (TmpStr, BufferSize / sizeof (CHAR16), Ptr + 3);\r |
180 | StrCpyS (LastSlash, BufferSize / sizeof (CHAR16), TmpStr);\r | |
ecc722ad | 181 | Ptr = LastSlash;\r |
182 | } else if (*Ptr == '\\' && *(Ptr + 1) == '.' && *(Ptr + 2) == '\\') {\r | |
183 | //\r | |
184 | // Convert a "\.\" to a "\"\r | |
185 | //\r | |
186 | \r | |
187 | //\r | |
c2a65e23 | 188 | // Use TmpStr as a backup, as StrCpyS in BaseLib does not handle copy of two strings\r |
ecc722ad | 189 | // that overlap.\r |
190 | //\r | |
c2a65e23 ZL |
191 | StrCpyS (TmpStr, BufferSize / sizeof (CHAR16), Ptr + 2);\r |
192 | StrCpyS (Ptr, BufferSize / sizeof (CHAR16), TmpStr);\r | |
ecc722ad | 193 | Ptr = LastSlash;\r |
194 | } else if (*Ptr == '\\') {\r | |
195 | LastSlash = Ptr;\r | |
196 | }\r | |
197 | \r | |
198 | Ptr++;\r | |
199 | }\r | |
200 | \r | |
201 | FreePool (TmpStr);\r | |
20333c6d | 202 | \r |
ecc722ad | 203 | return Str;\r |
204 | }\r | |
205 | \r | |
206 | /**\r | |
207 | Create a SECUREBOOT_MENU_ENTRY, and stores it in a buffer allocated from the pool.\r | |
208 | \r | |
209 | @return The new menu entry or NULL of error happens.\r | |
210 | \r | |
211 | **/\r | |
212 | SECUREBOOT_MENU_ENTRY *\r | |
213 | CreateMenuEntry (\r | |
214 | VOID\r | |
215 | )\r | |
216 | {\r | |
217 | SECUREBOOT_MENU_ENTRY *MenuEntry;\r | |
218 | UINTN ContextSize;\r | |
219 | \r | |
220 | //\r | |
221 | // Create new menu entry\r | |
222 | //\r | |
223 | MenuEntry = AllocateZeroPool (sizeof (SECUREBOOT_MENU_ENTRY));\r | |
224 | if (MenuEntry == NULL) {\r | |
225 | return NULL;\r | |
226 | }\r | |
227 | \r | |
228 | ContextSize = sizeof (SECUREBOOT_FILE_CONTEXT);\r | |
229 | MenuEntry->FileContext = AllocateZeroPool (ContextSize);\r | |
230 | if (MenuEntry->FileContext == NULL) {\r | |
231 | FreePool (MenuEntry);\r | |
232 | return NULL;\r | |
233 | }\r | |
234 | \r | |
235 | MenuEntry->Signature = SECUREBOOT_MENU_ENTRY_SIGNATURE;\r | |
236 | \r | |
237 | return MenuEntry;\r | |
238 | }\r | |
239 | \r | |
240 | /**\r | |
241 | Get Menu Entry from the Menu Entry List by MenuNumber.\r | |
242 | \r | |
243 | If MenuNumber is great or equal to the number of Menu\r | |
244 | Entry in the list, then ASSERT.\r | |
245 | \r | |
246 | @param[in] MenuOption The Menu Entry List to read the menu entry.\r | |
247 | @param[in] MenuNumber The index of Menu Entry.\r | |
248 | \r | |
249 | @return The Menu Entry.\r | |
250 | \r | |
251 | **/\r | |
252 | SECUREBOOT_MENU_ENTRY *\r | |
253 | GetMenuEntry (\r | |
254 | IN SECUREBOOT_MENU_OPTION *MenuOption,\r | |
255 | IN UINTN MenuNumber\r | |
256 | )\r | |
257 | {\r | |
258 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
259 | UINTN Index;\r | |
260 | LIST_ENTRY *List;\r | |
261 | \r | |
262 | ASSERT (MenuNumber < MenuOption->MenuNumber);\r | |
263 | \r | |
264 | List = MenuOption->Head.ForwardLink;\r | |
265 | for (Index = 0; Index < MenuNumber; Index++) {\r | |
266 | List = List->ForwardLink;\r | |
267 | }\r | |
268 | \r | |
269 | NewMenuEntry = CR (List, SECUREBOOT_MENU_ENTRY, Link, SECUREBOOT_MENU_ENTRY_SIGNATURE);\r | |
270 | \r | |
271 | return NewMenuEntry;\r | |
272 | }\r | |
273 | \r | |
274 | /**\r | |
275 | Create string tokens for a menu from its help strings and display strings.\r | |
276 | \r | |
277 | @param[in] HiiHandle Hii Handle of the package to be updated.\r | |
278 | @param[in] MenuOption The Menu whose string tokens need to be created.\r | |
279 | \r | |
280 | **/\r | |
281 | VOID\r | |
282 | CreateMenuStringToken (\r | |
283 | IN EFI_HII_HANDLE HiiHandle,\r | |
284 | IN SECUREBOOT_MENU_OPTION *MenuOption\r | |
285 | )\r | |
286 | {\r | |
287 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
288 | UINTN Index;\r | |
289 | \r | |
290 | for (Index = 0; Index < MenuOption->MenuNumber; Index++) {\r | |
291 | NewMenuEntry = GetMenuEntry (MenuOption, Index);\r | |
292 | \r | |
293 | NewMenuEntry->DisplayStringToken = HiiSetString (\r | |
294 | HiiHandle,\r | |
295 | 0,\r | |
296 | NewMenuEntry->DisplayString,\r | |
297 | NULL\r | |
298 | );\r | |
299 | \r | |
300 | if (NewMenuEntry->HelpString == NULL) {\r | |
301 | NewMenuEntry->HelpStringToken = NewMenuEntry->DisplayStringToken;\r | |
302 | } else {\r | |
303 | NewMenuEntry->HelpStringToken = HiiSetString (\r | |
304 | HiiHandle,\r | |
305 | 0,\r | |
306 | NewMenuEntry->HelpString,\r | |
307 | NULL\r | |
308 | );\r | |
309 | }\r | |
310 | }\r | |
311 | }\r | |
312 | \r | |
313 | /**\r | |
314 | Free up all resources allocated for a SECUREBOOT_MENU_ENTRY.\r | |
315 | \r | |
316 | @param[in, out] MenuEntry A pointer to SECUREBOOT_MENU_ENTRY.\r | |
317 | \r | |
318 | **/\r | |
319 | VOID\r | |
320 | DestroyMenuEntry (\r | |
321 | IN OUT SECUREBOOT_MENU_ENTRY *MenuEntry\r | |
322 | )\r | |
323 | {\r | |
324 | SECUREBOOT_FILE_CONTEXT *FileContext;\r | |
325 | \r | |
326 | \r | |
327 | FileContext = (SECUREBOOT_FILE_CONTEXT *) MenuEntry->FileContext;\r | |
328 | \r | |
968e1431 | 329 | if (!FileContext->IsRoot && FileContext->DevicePath != NULL) {\r |
ecc722ad | 330 | FreePool (FileContext->DevicePath);\r |
331 | } else {\r | |
332 | if (FileContext->FHandle != NULL) {\r | |
333 | FileContext->FHandle->Close (FileContext->FHandle);\r | |
334 | }\r | |
335 | }\r | |
336 | \r | |
337 | if (FileContext->FileName != NULL) {\r | |
338 | FreePool (FileContext->FileName);\r | |
339 | }\r | |
340 | if (FileContext->Info != NULL) {\r | |
341 | FreePool (FileContext->Info);\r | |
342 | }\r | |
343 | \r | |
344 | FreePool (FileContext);\r | |
345 | \r | |
968e1431 | 346 | if (MenuEntry->DisplayString != NULL) {\r |
347 | FreePool (MenuEntry->DisplayString);\r | |
348 | }\r | |
ecc722ad | 349 | if (MenuEntry->HelpString != NULL) {\r |
350 | FreePool (MenuEntry->HelpString);\r | |
351 | }\r | |
352 | \r | |
353 | FreePool (MenuEntry);\r | |
354 | }\r | |
355 | \r | |
356 | /**\r | |
357 | Free resources allocated in Allocate Rountine.\r | |
358 | \r | |
359 | @param[in, out] MenuOption Menu to be freed\r | |
20333c6d | 360 | \r |
ecc722ad | 361 | **/\r |
362 | VOID\r | |
363 | FreeMenu (\r | |
364 | IN OUT SECUREBOOT_MENU_OPTION *MenuOption\r | |
365 | )\r | |
366 | {\r | |
367 | SECUREBOOT_MENU_ENTRY *MenuEntry;\r | |
368 | while (!IsListEmpty (&MenuOption->Head)) {\r | |
369 | MenuEntry = CR (\r | |
370 | MenuOption->Head.ForwardLink,\r | |
371 | SECUREBOOT_MENU_ENTRY,\r | |
372 | Link,\r | |
373 | SECUREBOOT_MENU_ENTRY_SIGNATURE\r | |
374 | );\r | |
375 | RemoveEntryList (&MenuEntry->Link);\r | |
376 | DestroyMenuEntry (MenuEntry);\r | |
377 | }\r | |
378 | MenuOption->MenuNumber = 0;\r | |
379 | }\r | |
380 | \r | |
381 | /**\r | |
382 | This function gets the file information from an open file descriptor, and stores it\r | |
383 | in a buffer allocated from pool.\r | |
384 | \r | |
385 | @param[in] FHand File Handle.\r | |
386 | \r | |
387 | @return A pointer to a buffer with file information or NULL is returned\r | |
388 | \r | |
389 | **/\r | |
390 | EFI_FILE_INFO *\r | |
391 | FileInfo (\r | |
392 | IN EFI_FILE_HANDLE FHand\r | |
393 | )\r | |
394 | {\r | |
395 | EFI_STATUS Status;\r | |
396 | EFI_FILE_INFO *Buffer;\r | |
397 | UINTN BufferSize;\r | |
398 | \r | |
399 | //\r | |
400 | // Initialize for GrowBuffer loop\r | |
401 | //\r | |
402 | Buffer = NULL;\r | |
403 | BufferSize = SIZE_OF_EFI_FILE_INFO + 200;\r | |
404 | \r | |
405 | //\r | |
406 | // Call the real function\r | |
407 | //\r | |
408 | while (GrowBuffer (&Status, (VOID **) &Buffer, BufferSize)) {\r | |
409 | Status = FHand->GetInfo (\r | |
410 | FHand,\r | |
411 | &gEfiFileInfoGuid,\r | |
412 | &BufferSize,\r | |
413 | Buffer\r | |
414 | );\r | |
415 | }\r | |
416 | \r | |
417 | return Buffer;\r | |
418 | }\r | |
419 | \r | |
420 | /**\r | |
421 | This function gets the file system information from an open file descriptor,\r | |
422 | and stores it in a buffer allocated from pool.\r | |
423 | \r | |
424 | @param[in] FHand The file handle.\r | |
425 | \r | |
426 | @return A pointer to a buffer with file information.\r | |
427 | @retval NULL is returned if failed to get Vaolume Label Info.\r | |
428 | \r | |
429 | **/\r | |
430 | EFI_FILE_SYSTEM_VOLUME_LABEL *\r | |
431 | FileSystemVolumeLabelInfo (\r | |
432 | IN EFI_FILE_HANDLE FHand\r | |
433 | )\r | |
434 | {\r | |
435 | EFI_STATUS Status;\r | |
436 | EFI_FILE_SYSTEM_VOLUME_LABEL *Buffer;\r | |
437 | UINTN BufferSize;\r | |
438 | //\r | |
439 | // Initialize for GrowBuffer loop\r | |
440 | //\r | |
441 | Buffer = NULL;\r | |
442 | BufferSize = SIZE_OF_EFI_FILE_SYSTEM_VOLUME_LABEL + 200;\r | |
443 | \r | |
444 | //\r | |
445 | // Call the real function\r | |
446 | //\r | |
447 | while (GrowBuffer (&Status, (VOID **) &Buffer, BufferSize)) {\r | |
448 | Status = FHand->GetInfo (\r | |
449 | FHand,\r | |
450 | &gEfiFileSystemVolumeLabelInfoIdGuid,\r | |
451 | &BufferSize,\r | |
452 | Buffer\r | |
453 | );\r | |
454 | }\r | |
455 | \r | |
456 | return Buffer;\r | |
457 | }\r | |
458 | \r | |
459 | /**\r | |
460 | This function will open a file or directory referenced by DevicePath.\r | |
461 | \r | |
462 | This function opens a file with the open mode according to the file path. The\r | |
463 | Attributes is valid only for EFI_FILE_MODE_CREATE.\r | |
464 | \r | |
20333c6d | 465 | @param[in, out] FilePath On input, the device path to the file.\r |
ecc722ad | 466 | On output, the remaining device path.\r |
467 | @param[out] FileHandle Pointer to the file handle.\r | |
468 | @param[in] OpenMode The mode to open the file with.\r | |
469 | @param[in] Attributes The file's file attributes.\r | |
470 | \r | |
471 | @retval EFI_SUCCESS The information was set.\r | |
472 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r | |
473 | @retval EFI_UNSUPPORTED Could not open the file path.\r | |
474 | @retval EFI_NOT_FOUND The specified file could not be found on the\r | |
475 | device or the file system could not be found on\r | |
476 | the device.\r | |
477 | @retval EFI_NO_MEDIA The device has no medium.\r | |
478 | @retval EFI_MEDIA_CHANGED The device has a different medium in it or the\r | |
479 | medium is no longer supported.\r | |
480 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
481 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
482 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r | |
483 | @retval EFI_ACCESS_DENIED The file was opened read only.\r | |
484 | @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the\r | |
485 | file.\r | |
486 | @retval EFI_VOLUME_FULL The volume is full.\r | |
487 | **/\r | |
488 | EFI_STATUS\r | |
489 | EFIAPI\r | |
490 | OpenFileByDevicePath(\r | |
491 | IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath,\r | |
492 | OUT EFI_FILE_HANDLE *FileHandle,\r | |
493 | IN UINT64 OpenMode,\r | |
494 | IN UINT64 Attributes\r | |
495 | )\r | |
496 | {\r | |
497 | EFI_STATUS Status;\r | |
498 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *EfiSimpleFileSystemProtocol;\r | |
499 | EFI_FILE_PROTOCOL *Handle1;\r | |
500 | EFI_FILE_PROTOCOL *Handle2;\r | |
20333c6d | 501 | EFI_HANDLE DeviceHandle;\r |
ecc722ad | 502 | \r |
503 | if ((FilePath == NULL || FileHandle == NULL)) {\r | |
504 | return EFI_INVALID_PARAMETER;\r | |
505 | }\r | |
506 | \r | |
507 | Status = gBS->LocateDevicePath (\r | |
508 | &gEfiSimpleFileSystemProtocolGuid,\r | |
509 | FilePath,\r | |
510 | &DeviceHandle\r | |
511 | );\r | |
512 | if (EFI_ERROR (Status)) {\r | |
513 | return Status;\r | |
514 | }\r | |
515 | \r | |
516 | Status = gBS->OpenProtocol(\r | |
517 | DeviceHandle,\r | |
518 | &gEfiSimpleFileSystemProtocolGuid,\r | |
519 | (VOID**)&EfiSimpleFileSystemProtocol,\r | |
520 | gImageHandle,\r | |
521 | NULL,\r | |
522 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
523 | );\r | |
524 | if (EFI_ERROR (Status)) {\r | |
525 | return Status;\r | |
526 | }\r | |
527 | \r | |
528 | Status = EfiSimpleFileSystemProtocol->OpenVolume(EfiSimpleFileSystemProtocol, &Handle1);\r | |
529 | if (EFI_ERROR (Status)) {\r | |
530 | FileHandle = NULL;\r | |
531 | return Status;\r | |
532 | }\r | |
533 | \r | |
534 | //\r | |
535 | // go down directories one node at a time.\r | |
536 | //\r | |
537 | while (!IsDevicePathEnd (*FilePath)) {\r | |
538 | //\r | |
539 | // For file system access each node should be a file path component\r | |
540 | //\r | |
541 | if (DevicePathType (*FilePath) != MEDIA_DEVICE_PATH ||\r | |
542 | DevicePathSubType (*FilePath) != MEDIA_FILEPATH_DP\r | |
543 | ) {\r | |
544 | FileHandle = NULL;\r | |
545 | return (EFI_INVALID_PARAMETER);\r | |
546 | }\r | |
547 | //\r | |
548 | // Open this file path node\r | |
549 | //\r | |
550 | Handle2 = Handle1;\r | |
551 | Handle1 = NULL;\r | |
552 | \r | |
553 | //\r | |
554 | // Try to test opening an existing file\r | |
555 | //\r | |
556 | Status = Handle2->Open (\r | |
557 | Handle2,\r | |
558 | &Handle1,\r | |
559 | ((FILEPATH_DEVICE_PATH*)*FilePath)->PathName,\r | |
560 | OpenMode &~EFI_FILE_MODE_CREATE,\r | |
561 | 0\r | |
562 | );\r | |
563 | \r | |
564 | //\r | |
565 | // see if the error was that it needs to be created\r | |
566 | //\r | |
567 | if ((EFI_ERROR (Status)) && (OpenMode != (OpenMode &~EFI_FILE_MODE_CREATE))) {\r | |
568 | Status = Handle2->Open (\r | |
569 | Handle2,\r | |
570 | &Handle1,\r | |
571 | ((FILEPATH_DEVICE_PATH*)*FilePath)->PathName,\r | |
572 | OpenMode,\r | |
573 | Attributes\r | |
574 | );\r | |
575 | }\r | |
576 | //\r | |
577 | // Close the last node\r | |
578 | //\r | |
579 | Handle2->Close (Handle2);\r | |
580 | \r | |
581 | if (EFI_ERROR(Status)) {\r | |
582 | return (Status);\r | |
583 | }\r | |
584 | \r | |
585 | //\r | |
586 | // Get the next node\r | |
587 | //\r | |
588 | *FilePath = NextDevicePathNode (*FilePath);\r | |
589 | }\r | |
590 | \r | |
591 | //\r | |
592 | // This is a weak spot since if the undefined SHELL_FILE_HANDLE format changes this must change also!\r | |
593 | //\r | |
594 | *FileHandle = (VOID*)Handle1;\r | |
595 | return EFI_SUCCESS;\r | |
596 | }\r | |
597 | \r | |
598 | /**\r | |
599 | Function opens and returns a file handle to the root directory of a volume.\r | |
600 | \r | |
601 | @param[in] DeviceHandle A handle for a device\r | |
602 | \r | |
603 | @return A valid file handle or NULL if error happens.\r | |
604 | \r | |
605 | **/\r | |
606 | EFI_FILE_HANDLE\r | |
607 | OpenRoot (\r | |
608 | IN EFI_HANDLE DeviceHandle\r | |
609 | )\r | |
610 | {\r | |
611 | EFI_STATUS Status;\r | |
612 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;\r | |
613 | EFI_FILE_HANDLE File;\r | |
614 | \r | |
615 | File = NULL;\r | |
616 | \r | |
617 | //\r | |
618 | // File the file system interface to the device\r | |
619 | //\r | |
620 | Status = gBS->HandleProtocol (\r | |
621 | DeviceHandle,\r | |
622 | &gEfiSimpleFileSystemProtocolGuid,\r | |
623 | (VOID *) &Volume\r | |
624 | );\r | |
625 | \r | |
626 | //\r | |
627 | // Open the root directory of the volume\r | |
628 | //\r | |
629 | if (!EFI_ERROR (Status)) {\r | |
630 | Status = Volume->OpenVolume (\r | |
631 | Volume,\r | |
632 | &File\r | |
633 | );\r | |
634 | }\r | |
635 | //\r | |
636 | // Done\r | |
637 | //\r | |
638 | return EFI_ERROR (Status) ? NULL : File;\r | |
639 | }\r | |
640 | \r | |
641 | /**\r | |
642 | This function builds the FsOptionMenu list which records all\r | |
643 | available file system in the system. They include all instances\r | |
644 | of EFI_SIMPLE_FILE_SYSTEM_PROTOCOL, all instances of EFI_LOAD_FILE_SYSTEM\r | |
645 | and all type of legacy boot device.\r | |
646 | \r | |
647 | @retval EFI_SUCCESS Success find the file system\r | |
648 | @retval EFI_OUT_OF_RESOURCES Can not create menu entry\r | |
649 | \r | |
650 | **/\r | |
651 | EFI_STATUS\r | |
652 | FindFileSystem (\r | |
653 | VOID\r | |
654 | )\r | |
655 | {\r | |
656 | UINTN NoBlkIoHandles;\r | |
657 | UINTN NoSimpleFsHandles;\r | |
ecc722ad | 658 | EFI_HANDLE *BlkIoHandle;\r |
659 | EFI_HANDLE *SimpleFsHandle;\r | |
660 | UINT16 *VolumeLabel;\r | |
661 | EFI_BLOCK_IO_PROTOCOL *BlkIo;\r | |
662 | UINTN Index;\r | |
663 | EFI_STATUS Status;\r | |
664 | SECUREBOOT_MENU_ENTRY *MenuEntry;\r | |
665 | SECUREBOOT_FILE_CONTEXT *FileContext;\r | |
666 | UINT16 *TempStr;\r | |
667 | UINTN OptionNumber;\r | |
668 | VOID *Buffer;\r | |
669 | \r | |
670 | BOOLEAN RemovableMedia;\r | |
671 | \r | |
672 | \r | |
673 | NoSimpleFsHandles = 0;\r | |
ecc722ad | 674 | OptionNumber = 0;\r |
675 | InitializeListHead (&FsOptionMenu.Head);\r | |
676 | \r | |
677 | //\r | |
678 | // Locate Handles that support BlockIo protocol\r | |
679 | //\r | |
680 | Status = gBS->LocateHandleBuffer (\r | |
681 | ByProtocol,\r | |
682 | &gEfiBlockIoProtocolGuid,\r | |
683 | NULL,\r | |
684 | &NoBlkIoHandles,\r | |
685 | &BlkIoHandle\r | |
686 | );\r | |
687 | if (!EFI_ERROR (Status)) {\r | |
688 | \r | |
689 | for (Index = 0; Index < NoBlkIoHandles; Index++) {\r | |
690 | Status = gBS->HandleProtocol (\r | |
691 | BlkIoHandle[Index],\r | |
692 | &gEfiBlockIoProtocolGuid,\r | |
693 | (VOID **) &BlkIo\r | |
694 | );\r | |
695 | \r | |
696 | if (EFI_ERROR (Status)) {\r | |
697 | continue;\r | |
698 | }\r | |
699 | \r | |
700 | //\r | |
701 | // Issue a dummy read to trigger reinstall of BlockIo protocol for removable media\r | |
702 | //\r | |
703 | if (BlkIo->Media->RemovableMedia) {\r | |
704 | Buffer = AllocateZeroPool (BlkIo->Media->BlockSize);\r | |
705 | if (NULL == Buffer) {\r | |
706 | FreePool (BlkIoHandle);\r | |
707 | return EFI_OUT_OF_RESOURCES;\r | |
708 | }\r | |
709 | \r | |
710 | BlkIo->ReadBlocks (\r | |
711 | BlkIo,\r | |
712 | BlkIo->Media->MediaId,\r | |
713 | 0,\r | |
714 | BlkIo->Media->BlockSize,\r | |
715 | Buffer\r | |
716 | );\r | |
717 | FreePool (Buffer);\r | |
718 | }\r | |
719 | }\r | |
720 | FreePool (BlkIoHandle);\r | |
721 | }\r | |
722 | \r | |
723 | //\r | |
724 | // Locate Handles that support Simple File System protocol\r | |
725 | //\r | |
726 | Status = gBS->LocateHandleBuffer (\r | |
727 | ByProtocol,\r | |
728 | &gEfiSimpleFileSystemProtocolGuid,\r | |
729 | NULL,\r | |
730 | &NoSimpleFsHandles,\r | |
731 | &SimpleFsHandle\r | |
732 | );\r | |
733 | if (!EFI_ERROR (Status)) {\r | |
734 | //\r | |
735 | // Find all the instances of the File System prototocol\r | |
736 | //\r | |
737 | for (Index = 0; Index < NoSimpleFsHandles; Index++) {\r | |
738 | Status = gBS->HandleProtocol (\r | |
739 | SimpleFsHandle[Index],\r | |
740 | &gEfiBlockIoProtocolGuid,\r | |
741 | (VOID **) &BlkIo\r | |
742 | );\r | |
743 | if (EFI_ERROR (Status)) {\r | |
744 | //\r | |
745 | // If no block IO exists assume it's NOT a removable media\r | |
746 | //\r | |
747 | RemovableMedia = FALSE;\r | |
748 | } else {\r | |
749 | //\r | |
750 | // If block IO exists check to see if it's remobable media\r | |
751 | //\r | |
752 | RemovableMedia = BlkIo->Media->RemovableMedia;\r | |
753 | }\r | |
754 | \r | |
755 | //\r | |
756 | // Allocate pool for this instance.\r | |
757 | //\r | |
758 | MenuEntry = CreateMenuEntry ();\r | |
759 | if (NULL == MenuEntry) {\r | |
760 | FreePool (SimpleFsHandle);\r | |
761 | return EFI_OUT_OF_RESOURCES;\r | |
762 | }\r | |
763 | \r | |
764 | FileContext = (SECUREBOOT_FILE_CONTEXT *) MenuEntry->FileContext;\r | |
765 | \r | |
766 | FileContext->Handle = SimpleFsHandle[Index];\r | |
767 | MenuEntry->OptionNumber = Index;\r | |
768 | FileContext->FHandle = OpenRoot (FileContext->Handle);\r | |
769 | if (FileContext->FHandle == NULL) {\r | |
770 | DestroyMenuEntry (MenuEntry);\r | |
771 | continue;\r | |
772 | }\r | |
773 | \r | |
774 | MenuEntry->HelpString = DevicePathToStr (DevicePathFromHandle (FileContext->Handle));\r | |
775 | FileContext->Info = FileSystemVolumeLabelInfo (FileContext->FHandle);\r | |
776 | FileContext->FileName = StrDuplicate (L"\\");\r | |
777 | FileContext->DevicePath = FileDevicePath (\r | |
778 | FileContext->Handle,\r | |
779 | FileContext->FileName\r | |
780 | );\r | |
781 | FileContext->IsDir = TRUE;\r | |
782 | FileContext->IsRoot = TRUE;\r | |
783 | FileContext->IsRemovableMedia = RemovableMedia;\r | |
784 | FileContext->IsLoadFile = FALSE;\r | |
785 | \r | |
786 | //\r | |
787 | // Get current file system's Volume Label\r | |
788 | //\r | |
789 | if (FileContext->Info == NULL) {\r | |
790 | VolumeLabel = L"NO FILE SYSTEM INFO";\r | |
791 | } else {\r | |
792 | if (FileContext->Info->VolumeLabel == NULL) {\r | |
793 | VolumeLabel = L"NULL VOLUME LABEL";\r | |
794 | } else {\r | |
795 | VolumeLabel = FileContext->Info->VolumeLabel;\r | |
796 | if (*VolumeLabel == 0x0000) {\r | |
797 | VolumeLabel = L"NO VOLUME LABEL";\r | |
798 | }\r | |
799 | }\r | |
800 | }\r | |
801 | \r | |
802 | TempStr = MenuEntry->HelpString;\r | |
803 | MenuEntry->DisplayString = AllocateZeroPool (MAX_CHAR);\r | |
804 | ASSERT (MenuEntry->DisplayString != NULL);\r | |
805 | UnicodeSPrint (\r | |
806 | MenuEntry->DisplayString,\r | |
807 | MAX_CHAR,\r | |
808 | L"%s, [%s]",\r | |
809 | VolumeLabel,\r | |
810 | TempStr\r | |
811 | );\r | |
812 | OptionNumber++;\r | |
813 | InsertTailList (&FsOptionMenu.Head, &MenuEntry->Link);\r | |
814 | }\r | |
815 | }\r | |
816 | \r | |
817 | if (NoSimpleFsHandles != 0) {\r | |
818 | FreePool (SimpleFsHandle);\r | |
819 | }\r | |
20333c6d | 820 | \r |
ecc722ad | 821 | //\r |
822 | // Remember how many file system options are here\r | |
823 | //\r | |
824 | FsOptionMenu.MenuNumber = OptionNumber;\r | |
825 | return EFI_SUCCESS;\r | |
826 | }\r | |
827 | \r | |
828 | \r | |
829 | /**\r | |
20333c6d | 830 | Find files under the current directory. All files and sub-directories\r |
ecc722ad | 831 | in current directory will be stored in DirectoryMenu for future use.\r |
832 | \r | |
833 | @param[in] MenuEntry The Menu Entry.\r | |
834 | \r | |
835 | @retval EFI_SUCCESS Get files from current dir successfully.\r | |
836 | @return Other Can't get files from current dir.\r | |
837 | \r | |
838 | **/\r | |
839 | EFI_STATUS\r | |
840 | FindFiles (\r | |
841 | IN SECUREBOOT_MENU_ENTRY *MenuEntry\r | |
842 | )\r | |
843 | {\r | |
844 | EFI_FILE_HANDLE NewDir;\r | |
845 | EFI_FILE_HANDLE Dir;\r | |
846 | EFI_FILE_INFO *DirInfo;\r | |
847 | UINTN BufferSize;\r | |
848 | UINTN DirBufferSize;\r | |
849 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
850 | SECUREBOOT_FILE_CONTEXT *FileContext;\r | |
851 | SECUREBOOT_FILE_CONTEXT *NewFileContext;\r | |
852 | UINTN Pass;\r | |
853 | EFI_STATUS Status;\r | |
854 | UINTN OptionNumber;\r | |
855 | \r | |
856 | FileContext = (SECUREBOOT_FILE_CONTEXT *) MenuEntry->FileContext;\r | |
857 | Dir = FileContext->FHandle;\r | |
858 | OptionNumber = 0;\r | |
859 | //\r | |
860 | // Open current directory to get files from it\r | |
861 | //\r | |
862 | Status = Dir->Open (\r | |
863 | Dir,\r | |
864 | &NewDir,\r | |
865 | FileContext->FileName,\r | |
866 | EFI_FILE_READ_ONLY,\r | |
867 | 0\r | |
868 | );\r | |
869 | if (!FileContext->IsRoot) {\r | |
870 | Dir->Close (Dir);\r | |
871 | }\r | |
872 | \r | |
873 | if (EFI_ERROR (Status)) {\r | |
874 | return Status;\r | |
875 | }\r | |
876 | \r | |
877 | DirInfo = FileInfo (NewDir);\r | |
878 | if (DirInfo == NULL) {\r | |
879 | return EFI_NOT_FOUND;\r | |
880 | }\r | |
881 | \r | |
882 | if ((DirInfo->Attribute & EFI_FILE_DIRECTORY) == 0) {\r | |
883 | return EFI_INVALID_PARAMETER;\r | |
884 | }\r | |
885 | \r | |
886 | FileContext->DevicePath = FileDevicePath (\r | |
887 | FileContext->Handle,\r | |
888 | FileContext->FileName\r | |
889 | );\r | |
890 | \r | |
891 | DirBufferSize = sizeof (EFI_FILE_INFO) + 1024;\r | |
892 | DirInfo = AllocateZeroPool (DirBufferSize);\r | |
893 | if (DirInfo == NULL) {\r | |
894 | return EFI_OUT_OF_RESOURCES;\r | |
895 | }\r | |
20333c6d | 896 | \r |
ecc722ad | 897 | //\r |
898 | // Get all files in current directory\r | |
899 | // Pass 1 to get Directories\r | |
900 | // Pass 2 to get files that are EFI images\r | |
901 | //\r | |
902 | for (Pass = 1; Pass <= 2; Pass++) {\r | |
903 | NewDir->SetPosition (NewDir, 0);\r | |
904 | for (;;) {\r | |
905 | BufferSize = DirBufferSize;\r | |
906 | Status = NewDir->Read (NewDir, &BufferSize, DirInfo);\r | |
907 | if (EFI_ERROR (Status) || BufferSize == 0) {\r | |
908 | break;\r | |
909 | }\r | |
910 | \r | |
911 | if (((DirInfo->Attribute & EFI_FILE_DIRECTORY) != 0 && Pass == 2) ||\r | |
912 | ((DirInfo->Attribute & EFI_FILE_DIRECTORY) == 0 && Pass == 1)\r | |
913 | ) {\r | |
914 | //\r | |
915 | // Pass 1 is for Directories\r | |
916 | // Pass 2 is for file names\r | |
917 | //\r | |
918 | continue;\r | |
919 | }\r | |
920 | \r | |
921 | NewMenuEntry = CreateMenuEntry ();\r | |
922 | if (NULL == NewMenuEntry) {\r | |
923 | return EFI_OUT_OF_RESOURCES;\r | |
924 | }\r | |
925 | \r | |
926 | NewFileContext = (SECUREBOOT_FILE_CONTEXT *) NewMenuEntry->FileContext;\r | |
927 | NewFileContext->Handle = FileContext->Handle;\r | |
928 | NewFileContext->FileName = AppendFileName (\r | |
929 | FileContext->FileName,\r | |
930 | DirInfo->FileName\r | |
931 | );\r | |
932 | NewFileContext->FHandle = NewDir;\r | |
933 | NewFileContext->DevicePath = FileDevicePath (\r | |
934 | NewFileContext->Handle,\r | |
935 | NewFileContext->FileName\r | |
936 | );\r | |
937 | NewMenuEntry->HelpString = NULL;\r | |
20333c6d | 938 | \r |
ecc722ad | 939 | NewFileContext->IsDir = (BOOLEAN) ((DirInfo->Attribute & EFI_FILE_DIRECTORY) == EFI_FILE_DIRECTORY);\r |
940 | if (NewFileContext->IsDir) {\r | |
941 | BufferSize = StrLen (DirInfo->FileName) * 2 + 6;\r | |
942 | NewMenuEntry->DisplayString = AllocateZeroPool (BufferSize);\r | |
943 | \r | |
944 | UnicodeSPrint (\r | |
945 | NewMenuEntry->DisplayString,\r | |
946 | BufferSize,\r | |
947 | L"<%s>",\r | |
948 | DirInfo->FileName\r | |
949 | );\r | |
950 | \r | |
951 | } else {\r | |
952 | NewMenuEntry->DisplayString = StrDuplicate (DirInfo->FileName);\r | |
953 | }\r | |
954 | \r | |
955 | NewFileContext->IsRoot = FALSE;\r | |
956 | NewFileContext->IsLoadFile = FALSE;\r | |
957 | NewFileContext->IsRemovableMedia = FALSE;\r | |
958 | \r | |
959 | NewMenuEntry->OptionNumber = OptionNumber;\r | |
960 | OptionNumber++;\r | |
961 | InsertTailList (&DirectoryMenu.Head, &NewMenuEntry->Link);\r | |
962 | }\r | |
963 | }\r | |
964 | \r | |
965 | DirectoryMenu.MenuNumber = OptionNumber;\r | |
966 | FreePool (DirInfo);\r | |
967 | return EFI_SUCCESS;\r | |
968 | }\r | |
969 | \r | |
970 | /**\r | |
971 | Refresh the global UpdateData structure.\r | |
972 | \r | |
973 | **/\r | |
974 | VOID\r | |
975 | RefreshUpdateData (\r | |
976 | VOID\r | |
977 | )\r | |
978 | {\r | |
979 | //\r | |
980 | // Free current updated date\r | |
20333c6d | 981 | //\r |
ecc722ad | 982 | if (mStartOpCodeHandle != NULL) {\r |
983 | HiiFreeOpCodeHandle (mStartOpCodeHandle);\r | |
984 | }\r | |
985 | \r | |
986 | //\r | |
987 | // Create new OpCode Handle\r | |
988 | //\r | |
989 | mStartOpCodeHandle = HiiAllocateOpCodeHandle ();\r | |
990 | \r | |
991 | //\r | |
992 | // Create Hii Extend Label OpCode as the start opcode\r | |
993 | //\r | |
994 | mStartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r | |
995 | mStartOpCodeHandle,\r | |
996 | &gEfiIfrTianoGuid,\r | |
997 | NULL,\r | |
998 | sizeof (EFI_IFR_GUID_LABEL)\r | |
999 | );\r | |
1000 | mStartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r | |
1001 | }\r | |
1002 | \r | |
1003 | /**\r | |
1004 | Update the File Explore page.\r | |
1005 | \r | |
1006 | @param[in] HiiHandle Hii Handle of the package to be updated.\r | |
1007 | @param[in] MenuOption The Menu whose string tokens need to be updated.\r | |
1008 | @param[in] FeCurrentState Current file explorer state.\r | |
1009 | \r | |
1010 | **/\r | |
1011 | VOID\r | |
1012 | UpdateFileExplorePage (\r | |
1013 | IN EFI_HII_HANDLE HiiHandle,\r | |
1014 | IN SECUREBOOT_MENU_OPTION *MenuOption,\r | |
1015 | IN FILE_EXPLORER_STATE FeCurrentState\r | |
1016 | )\r | |
1017 | {\r | |
1018 | UINTN Index;\r | |
1019 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
1020 | SECUREBOOT_FILE_CONTEXT *NewFileContext;\r | |
1021 | EFI_FORM_ID FormId;\r | |
1022 | EFI_FORM_ID FileFormId;\r | |
1023 | \r | |
1024 | if (FeCurrentState == FileExplorerStateEnrollPkFile) {\r | |
1025 | FormId = SECUREBOOT_ADD_PK_FILE_FORM_ID;\r | |
1026 | FileFormId = FORM_FILE_EXPLORER_ID_PK;\r | |
1027 | } else if (FeCurrentState == FileExplorerStateEnrollKekFile) {\r | |
1028 | FormId = FORMID_ENROLL_KEK_FORM;\r | |
1029 | FileFormId = FORM_FILE_EXPLORER_ID_KEK;\r | |
1030 | } else if (FeCurrentState == FileExplorerStateEnrollSignatureFileToDb) {\r | |
1031 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DB;\r | |
1032 | FileFormId = FORM_FILE_EXPLORER_ID_DB;\r | |
1033 | } else if (FeCurrentState == FileExplorerStateEnrollSignatureFileToDbx) {\r | |
1034 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DBX;\r | |
1035 | FileFormId = FORM_FILE_EXPLORER_ID_DBX;\r | |
20333c6d QL |
1036 | } else if (FeCurrentState == FileExplorerStateEnrollSignatureFileToDbt) {\r |
1037 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DBT;\r | |
1038 | FileFormId = FORM_FILE_EXPLORER_ID_DBT;\r | |
ecc722ad | 1039 | } else {\r |
1040 | return;\r | |
1041 | }\r | |
1042 | \r | |
1043 | NewMenuEntry = NULL;\r | |
1044 | NewFileContext = NULL;\r | |
1045 | \r | |
1046 | RefreshUpdateData ();\r | |
1047 | mStartLabel->Number = FORM_FILE_EXPLORER_ID;\r | |
1048 | \r | |
1049 | for (Index = 0; Index < MenuOption->MenuNumber; Index++) {\r | |
1050 | NewMenuEntry = GetMenuEntry (MenuOption, Index);\r | |
1051 | NewFileContext = (SECUREBOOT_FILE_CONTEXT *) NewMenuEntry->FileContext;\r | |
1052 | \r | |
1053 | if (NewFileContext->IsDir) {\r | |
1054 | //\r | |
1055 | // Create Text opcode for directory.\r | |
1056 | //\r | |
1057 | HiiCreateActionOpCode (\r | |
1058 | mStartOpCodeHandle,\r | |
1059 | (UINT16) (FILE_OPTION_OFFSET + Index),\r | |
1060 | NewMenuEntry->DisplayStringToken,\r | |
1061 | STRING_TOKEN (STR_NULL),\r | |
1062 | EFI_IFR_FLAG_CALLBACK,\r | |
1063 | 0\r | |
1064 | );\r | |
1065 | } else {\r | |
1066 | \r | |
1067 | //\r | |
1068 | // Create Goto opcode for file.\r | |
1069 | //\r | |
1070 | HiiCreateGotoOpCode (\r | |
1071 | mStartOpCodeHandle,\r | |
1072 | FormId,\r | |
1073 | NewMenuEntry->DisplayStringToken,\r | |
1074 | STRING_TOKEN (STR_NULL),\r | |
1075 | EFI_IFR_FLAG_CALLBACK,\r | |
c93bcb7e | 1076 | (UINT16) (FILE_OPTION_GOTO_OFFSET + Index)\r |
ecc722ad | 1077 | );\r |
1078 | }\r | |
1079 | }\r | |
1080 | \r | |
1081 | HiiUpdateForm (\r | |
1082 | HiiHandle,\r | |
1083 | &gSecureBootConfigFormSetGuid,\r | |
1084 | FileFormId,\r | |
1085 | mStartOpCodeHandle, // Label FORM_FILE_EXPLORER_ID\r | |
1086 | mEndOpCodeHandle // LABEL_END\r | |
1087 | );\r | |
1088 | }\r | |
1089 | \r | |
1090 | /**\r | |
1091 | Update the file explorer page with the refreshed file system.\r | |
1092 | \r | |
1093 | @param[in] PrivateData Module private data.\r | |
1094 | @param[in] KeyValue Key value to identify the type of data to expect.\r | |
1095 | \r | |
1096 | @retval TRUE Inform the caller to create a callback packet to exit file explorer.\r | |
1097 | @retval FALSE Indicate that there is no need to exit file explorer.\r | |
1098 | \r | |
1099 | **/\r | |
1100 | BOOLEAN\r | |
1101 | UpdateFileExplorer (\r | |
1102 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData,\r | |
1103 | IN UINT16 KeyValue\r | |
1104 | )\r | |
1105 | {\r | |
1106 | UINT16 FileOptionMask;\r | |
1107 | SECUREBOOT_MENU_ENTRY *NewMenuEntry;\r | |
1108 | SECUREBOOT_FILE_CONTEXT *NewFileContext;\r | |
1109 | EFI_FORM_ID FormId;\r | |
1110 | BOOLEAN ExitFileExplorer;\r | |
1111 | EFI_STATUS Status;\r | |
1112 | EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;\r | |
1113 | \r | |
1114 | NewMenuEntry = NULL;\r | |
1115 | NewFileContext = NULL;\r | |
1116 | ExitFileExplorer = FALSE;\r | |
1117 | FileOptionMask = (UINT16) (FILE_OPTION_MASK & KeyValue);\r | |
1118 | \r | |
1119 | if (PrivateData->FeDisplayContext == FileExplorerDisplayUnknown) {\r | |
1120 | //\r | |
1121 | // First in, display file system.\r | |
1122 | //\r | |
1123 | FreeMenu (&FsOptionMenu);\r | |
1124 | FindFileSystem ();\r | |
20333c6d | 1125 | \r |
ecc722ad | 1126 | CreateMenuStringToken (PrivateData->HiiHandle, &FsOptionMenu);\r |
1127 | UpdateFileExplorePage (PrivateData->HiiHandle, &FsOptionMenu, PrivateData->FeCurrentState);\r | |
1128 | \r | |
1129 | PrivateData->FeDisplayContext = FileExplorerDisplayFileSystem;\r | |
1130 | } else {\r | |
1131 | if (PrivateData->FeDisplayContext == FileExplorerDisplayFileSystem) {\r | |
1132 | NewMenuEntry = GetMenuEntry (&FsOptionMenu, FileOptionMask);\r | |
1133 | } else if (PrivateData->FeDisplayContext == FileExplorerDisplayDirectory) {\r | |
1134 | NewMenuEntry = GetMenuEntry (&DirectoryMenu, FileOptionMask);\r | |
1135 | }\r | |
1136 | \r | |
1137 | NewFileContext = (SECUREBOOT_FILE_CONTEXT *) NewMenuEntry->FileContext;\r | |
1138 | \r | |
1139 | if (NewFileContext->IsDir ) {\r | |
0b716fd7 ED |
1140 | PrivateData->FeDisplayContext = FileExplorerDisplayDirectory;\r |
1141 | \r | |
1142 | RemoveEntryList (&NewMenuEntry->Link);\r | |
ecc722ad | 1143 | FreeMenu (&DirectoryMenu);\r |
1144 | Status = FindFiles (NewMenuEntry);\r | |
1145 | if (EFI_ERROR (Status)) {\r | |
1146 | ExitFileExplorer = TRUE;\r | |
1147 | goto OnExit;\r | |
1148 | }\r | |
1149 | CreateMenuStringToken (PrivateData->HiiHandle, &DirectoryMenu);\r | |
0b716fd7 ED |
1150 | DestroyMenuEntry (NewMenuEntry);\r |
1151 | \r | |
ecc722ad | 1152 | UpdateFileExplorePage (PrivateData->HiiHandle, &DirectoryMenu, PrivateData->FeCurrentState);\r |
1153 | \r | |
1154 | } else {\r | |
1155 | if (PrivateData->FeCurrentState == FileExplorerStateEnrollPkFile) {\r | |
1156 | FormId = SECUREBOOT_ADD_PK_FILE_FORM_ID;\r | |
1157 | } else if (PrivateData->FeCurrentState == FileExplorerStateEnrollKekFile) {\r | |
1158 | FormId = FORMID_ENROLL_KEK_FORM;\r | |
1159 | } else if (PrivateData->FeCurrentState == FileExplorerStateEnrollSignatureFileToDb) {\r | |
1160 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DB;\r | |
1161 | } else if (PrivateData->FeCurrentState == FileExplorerStateEnrollSignatureFileToDbx) {\r | |
1162 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DBX;\r | |
20333c6d QL |
1163 | } else if (PrivateData->FeCurrentState == FileExplorerStateEnrollSignatureFileToDbt) {\r |
1164 | FormId = SECUREBOOT_ENROLL_SIGNATURE_TO_DBT;\r | |
ecc722ad | 1165 | } else {\r |
1166 | return FALSE;\r | |
1167 | }\r | |
1168 | \r | |
1169 | PrivateData->MenuEntry = NewMenuEntry;\r | |
1170 | PrivateData->FileContext->FileName = NewFileContext->FileName;\r | |
20333c6d | 1171 | \r |
ecc722ad | 1172 | TmpDevicePath = NewFileContext->DevicePath;\r |
1173 | OpenFileByDevicePath (\r | |
1174 | &TmpDevicePath,\r | |
1175 | &PrivateData->FileContext->FHandle,\r | |
1176 | EFI_FILE_MODE_READ,\r | |
1177 | 0\r | |
1178 | );\r | |
1179 | \r | |
1180 | //\r | |
1181 | // Create Subtitle op-code for the display string of the option.\r | |
1182 | //\r | |
1183 | RefreshUpdateData ();\r | |
1184 | mStartLabel->Number = FormId;\r | |
1185 | \r | |
1186 | HiiCreateSubTitleOpCode (\r | |
1187 | mStartOpCodeHandle,\r | |
1188 | NewMenuEntry->DisplayStringToken,\r | |
1189 | 0,\r | |
1190 | 0,\r | |
1191 | 0\r | |
1192 | );\r | |
1193 | \r | |
1194 | HiiUpdateForm (\r | |
1195 | PrivateData->HiiHandle,\r | |
1196 | &gSecureBootConfigFormSetGuid,\r | |
1197 | FormId,\r | |
1198 | mStartOpCodeHandle, // Label FormId\r | |
1199 | mEndOpCodeHandle // LABEL_END\r | |
1200 | );\r | |
1201 | }\r | |
1202 | }\r | |
1203 | \r | |
1204 | OnExit:\r | |
1205 | return ExitFileExplorer;\r | |
1206 | }\r | |
1207 | \r | |
1208 | /**\r | |
20333c6d | 1209 | Clean up the dynamic opcode at label and form specified by both LabelId.\r |
ecc722ad | 1210 | \r |
1211 | @param[in] LabelId It is both the Form ID and Label ID for opcode deletion.\r | |
1212 | @param[in] PrivateData Module private data.\r | |
1213 | \r | |
1214 | **/\r | |
1215 | VOID\r | |
1216 | CleanUpPage (\r | |
1217 | IN UINT16 LabelId,\r | |
1218 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData\r | |
1219 | )\r | |
1220 | {\r | |
1221 | RefreshUpdateData ();\r | |
1222 | \r | |
1223 | //\r | |
1224 | // Remove all op-codes from dynamic page\r | |
1225 | //\r | |
1226 | mStartLabel->Number = LabelId;\r | |
1227 | HiiUpdateForm (\r | |
1228 | PrivateData->HiiHandle,\r | |
1229 | &gSecureBootConfigFormSetGuid,\r | |
1230 | LabelId,\r | |
1231 | mStartOpCodeHandle, // Label LabelId\r | |
1232 | mEndOpCodeHandle // LABEL_END\r | |
1233 | );\r | |
1234 | }\r |