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1 | /*++ @file\r |
2 | POSIX Pthreads to emulate APs and implement threads\r | |
3 | \r | |
4 | Copyright (c) 2011, Apple Inc. All rights reserved.\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 | \r | |
16 | #include "Host.h"\r | |
17 | \r | |
18 | \r | |
19 | #define EMU_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE SIGNATURE_32 ('E', 'P', 'f', 's')\r | |
20 | \r | |
21 | typedef struct {\r | |
22 | UINTN Signature;\r | |
23 | EMU_IO_THUNK_PROTOCOL *Thunk;\r | |
24 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL SimpleFileSystem;\r | |
25 | CHAR8 *FilePath;\r | |
26 | CHAR16 *VolumeLabel;\r | |
27 | BOOLEAN FileHandlesOpen;\r | |
28 | } EMU_SIMPLE_FILE_SYSTEM_PRIVATE;\r | |
29 | \r | |
30 | #define EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS(a) \\r | |
31 | CR (a, \\r | |
32 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE, \\r | |
33 | SimpleFileSystem, \\r | |
34 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE \\r | |
35 | )\r | |
36 | \r | |
37 | \r | |
38 | #define EMU_EFI_FILE_PRIVATE_SIGNATURE SIGNATURE_32 ('E', 'P', 'f', 'i')\r | |
39 | \r | |
40 | typedef struct {\r | |
41 | UINTN Signature;\r | |
42 | EMU_IO_THUNK_PROTOCOL *Thunk;\r | |
43 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *SimpleFileSystem;\r | |
44 | EFI_FILE_PROTOCOL EfiFile;\r | |
45 | int fd;\r | |
46 | DIR *Dir;\r | |
47 | BOOLEAN IsRootDirectory;\r | |
48 | BOOLEAN IsDirectoryPath;\r | |
49 | BOOLEAN IsOpenedByRead;\r | |
50 | char *FileName;\r | |
51 | struct dirent *Dirent;\r | |
52 | } EMU_EFI_FILE_PRIVATE;\r | |
53 | \r | |
54 | #define EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS(a) \\r | |
55 | CR (a, \\r | |
56 | EMU_EFI_FILE_PRIVATE, \\r | |
57 | EfiFile, \\r | |
58 | EMU_EFI_FILE_PRIVATE_SIGNATURE \\r | |
59 | )\r | |
60 | \r | |
61 | EFI_STATUS\r | |
62 | PosixFileGetInfo (\r | |
63 | IN EFI_FILE_PROTOCOL *This,\r | |
64 | IN EFI_GUID *InformationType,\r | |
65 | IN OUT UINTN *BufferSize,\r | |
66 | OUT VOID *Buffer\r | |
67 | );\r | |
68 | \r | |
69 | EFI_STATUS\r | |
70 | PosixFileSetInfo (\r | |
71 | IN EFI_FILE_PROTOCOL *This,\r | |
72 | IN EFI_GUID *InformationType,\r | |
73 | IN UINTN BufferSize,\r | |
74 | IN VOID *Buffer\r | |
75 | );\r | |
76 | \r | |
77 | \r | |
78 | EFI_FILE_PROTOCOL gPosixFileProtocol = {\r | |
79 | EFI_FILE_REVISION,\r | |
80 | GasketPosixFileOpen,\r | |
81 | GasketPosixFileCLose,\r | |
82 | GasketPosixFileDelete,\r | |
83 | GasketPosixFileRead,\r | |
84 | GasketPosixFileWrite,\r | |
85 | GasketPosixFileGetPossition,\r | |
86 | GasketPosixFileSetPossition,\r | |
87 | GasketPosixFileGetInfo,\r | |
88 | GasketPosixFileSetInfo,\r | |
89 | GasketPosixFileFlush\r | |
90 | };\r | |
91 | \r | |
92 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL gPosixFileSystemProtocol = {\r | |
93 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION,\r | |
94 | GasketPosixOpenVolume,\r | |
95 | };\r | |
96 | \r | |
97 | \r | |
98 | /**\r | |
99 | Open the root directory on a volume.\r | |
100 | \r | |
101 | @param This Protocol instance pointer.\r | |
102 | @param Root Returns an Open file handle for the root directory\r | |
103 | \r | |
104 | @retval EFI_SUCCESS The device was opened.\r | |
105 | @retval EFI_UNSUPPORTED This volume does not support the file system.\r | |
106 | @retval EFI_NO_MEDIA The device has no media.\r | |
107 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
108 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
109 | @retval EFI_ACCESS_DENIED The service denied access to the file.\r | |
110 | @retval EFI_OUT_OF_RESOURCES The volume was not opened due to lack of resources.\r | |
111 | \r | |
112 | **/\r | |
113 | EFI_STATUS\r | |
114 | PosixOpenVolume (\r | |
115 | IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This,\r | |
116 | OUT EFI_FILE_PROTOCOL **Root\r | |
117 | )\r | |
118 | {\r | |
119 | EFI_STATUS Status;\r | |
120 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *Private;\r | |
121 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
122 | \r | |
123 | Private = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (This);\r | |
124 | \r | |
125 | Status = EFI_OUT_OF_RESOURCES;\r | |
126 | PrivateFile = malloc (sizeof (EMU_EFI_FILE_PRIVATE));\r | |
127 | if (PrivateFile == NULL) {\r | |
128 | goto Done;\r | |
129 | }\r | |
130 | \r | |
131 | PrivateFile->FileName = malloc (AsciiStrSize (Private->FilePath));\r | |
132 | if (PrivateFile->FileName == NULL) {\r | |
133 | goto Done;\r | |
134 | }\r | |
135 | AsciiStrCpy (PrivateFile->FileName, Private->FilePath);\r | |
136 | \r | |
137 | PrivateFile->Signature = EMU_EFI_FILE_PRIVATE_SIGNATURE;\r | |
138 | PrivateFile->Thunk = Private->Thunk;\r | |
139 | PrivateFile->SimpleFileSystem = This;\r | |
140 | PrivateFile->IsRootDirectory = TRUE;\r | |
141 | PrivateFile->IsDirectoryPath = TRUE;\r | |
142 | PrivateFile->IsOpenedByRead = TRUE;\r | |
143 | \r | |
144 | CopyMem (&PrivateFile->EfiFile, &gPosixFileProtocol, sizeof (EFI_FILE_PROTOCOL));\r | |
145 | \r | |
146 | PrivateFile->fd = -1;\r | |
147 | PrivateFile->Dir = NULL;\r | |
148 | PrivateFile->Dirent = NULL;\r | |
149 | \r | |
150 | *Root = &PrivateFile->EfiFile;\r | |
151 | \r | |
152 | PrivateFile->Dir = opendir (PrivateFile->FileName);\r | |
153 | if (PrivateFile->Dir == NULL) {\r | |
154 | Status = EFI_ACCESS_DENIED;\r | |
155 | } else {\r | |
156 | Status = EFI_SUCCESS;\r | |
157 | }\r | |
158 | \r | |
159 | Done:\r | |
160 | if (EFI_ERROR (Status)) {\r | |
161 | if (PrivateFile != NULL) {\r | |
162 | if (PrivateFile->FileName != NULL) {\r | |
163 | free (PrivateFile->FileName);\r | |
164 | }\r | |
165 | \r | |
166 | free (PrivateFile);\r | |
167 | }\r | |
168 | \r | |
169 | *Root = NULL;\r | |
170 | }\r | |
171 | \r | |
172 | return Status;\r | |
173 | }\r | |
174 | \r | |
175 | \r | |
176 | EFI_STATUS\r | |
177 | ErrnoToEfiStatus ()\r | |
178 | {\r | |
179 | switch (errno) {\r | |
180 | case EACCES:\r | |
181 | return EFI_ACCESS_DENIED;\r | |
182 | \r | |
183 | case EDQUOT:\r | |
184 | case ENOSPC:\r | |
185 | return EFI_VOLUME_FULL;\r | |
186 | \r | |
187 | default:\r | |
188 | return EFI_DEVICE_ERROR;\r | |
189 | }\r | |
190 | }\r | |
191 | \r | |
192 | VOID\r | |
193 | CutPrefix (\r | |
194 | IN CHAR8 *Str,\r | |
195 | IN UINTN Count\r | |
196 | )\r | |
197 | {\r | |
198 | CHAR8 *Pointer;\r | |
199 | \r | |
200 | if (AsciiStrLen (Str) < Count) {\r | |
201 | ASSERT (0);\r | |
202 | }\r | |
203 | \r | |
204 | for (Pointer = Str; *(Pointer + Count); Pointer++) {\r | |
205 | *Pointer = *(Pointer + Count);\r | |
206 | }\r | |
207 | \r | |
208 | *Pointer = *(Pointer + Count);\r | |
209 | }\r | |
210 | \r | |
211 | \r | |
212 | VOID\r | |
213 | PosixSystemTimeToEfiTime (\r | |
214 | IN time_t SystemTime,\r | |
215 | OUT EFI_TIME *Time\r | |
216 | )\r | |
217 | {\r | |
218 | struct tm *tm;\r | |
219 | \r | |
220 | tm = gmtime (&SystemTime);\r | |
221 | Time->Year = tm->tm_year;\r | |
222 | Time->Month = tm->tm_mon + 1;\r | |
223 | Time->Day = tm->tm_mday;\r | |
224 | Time->Hour = tm->tm_hour;\r | |
225 | Time->Minute = tm->tm_min;\r | |
226 | Time->Second = tm->tm_sec;\r | |
227 | Time->Nanosecond = 0;\r | |
228 | \r | |
229 | Time->TimeZone = timezone;\r | |
230 | Time->Daylight = (daylight ? EFI_TIME_ADJUST_DAYLIGHT : 0) | (tm->tm_isdst > 0 ? EFI_TIME_IN_DAYLIGHT : 0);\r | |
231 | }\r | |
232 | \r | |
233 | \r | |
234 | EFI_STATUS\r | |
235 | UnixSimpleFileSystemFileInfo (\r | |
236 | EMU_EFI_FILE_PRIVATE *PrivateFile,\r | |
237 | IN CHAR8 *FileName,\r | |
238 | IN OUT UINTN *BufferSize,\r | |
239 | OUT VOID *Buffer\r | |
240 | )\r | |
241 | {\r | |
242 | EFI_STATUS Status;\r | |
243 | UINTN Size;\r | |
244 | UINTN NameSize;\r | |
245 | UINTN ResultSize;\r | |
246 | EFI_FILE_INFO *Info;\r | |
247 | CHAR8 *RealFileName;\r | |
248 | CHAR8 *TempPointer;\r | |
249 | CHAR16 *BufferFileName;\r | |
250 | struct stat buf;\r | |
251 | \r | |
252 | if (FileName != NULL) {\r | |
253 | RealFileName = FileName;\r | |
254 | } else if (PrivateFile->IsRootDirectory) {\r | |
255 | RealFileName = "";\r | |
256 | } else {\r | |
257 | RealFileName = PrivateFile->FileName;\r | |
258 | }\r | |
259 | \r | |
260 | TempPointer = RealFileName;\r | |
261 | while (*TempPointer) {\r | |
262 | if (*TempPointer == '/') {\r | |
263 | RealFileName = TempPointer + 1;\r | |
264 | }\r | |
265 | \r | |
266 | TempPointer++;\r | |
267 | }\r | |
268 | \r | |
269 | Size = SIZE_OF_EFI_FILE_INFO;\r | |
270 | NameSize = AsciiStrSize (RealFileName) * 2;\r | |
271 | ResultSize = Size + NameSize;\r | |
272 | \r | |
273 | if (*BufferSize < ResultSize) {\r | |
274 | *BufferSize = ResultSize;\r | |
275 | return EFI_BUFFER_TOO_SMALL;\r | |
276 | }\r | |
277 | if (stat (FileName == NULL ? PrivateFile->FileName : FileName, &buf) < 0) {\r | |
278 | return EFI_DEVICE_ERROR;\r | |
279 | }\r | |
280 | \r | |
281 | Status = EFI_SUCCESS;\r | |
282 | \r | |
283 | Info = Buffer;\r | |
284 | ZeroMem (Info, ResultSize);\r | |
285 | \r | |
286 | Info->Size = ResultSize;\r | |
287 | Info->FileSize = buf.st_size;\r | |
288 | Info->PhysicalSize = MultU64x32 (buf.st_blocks, buf.st_blksize);\r | |
289 | \r | |
290 | PosixSystemTimeToEfiTime (buf.st_ctime, &Info->CreateTime);\r | |
291 | PosixSystemTimeToEfiTime (buf.st_atime, &Info->LastAccessTime);\r | |
292 | PosixSystemTimeToEfiTime (buf.st_mtime, &Info->ModificationTime);\r | |
293 | \r | |
294 | if (!(buf.st_mode & S_IWUSR)) {\r | |
295 | Info->Attribute |= EFI_FILE_READ_ONLY;\r | |
296 | }\r | |
297 | \r | |
298 | if (S_ISDIR(buf.st_mode)) {\r | |
299 | Info->Attribute |= EFI_FILE_DIRECTORY;\r | |
300 | }\r | |
301 | \r | |
302 | \r | |
303 | BufferFileName = (CHAR16 *)((CHAR8 *) Buffer + Size);\r | |
304 | while (*RealFileName) {\r | |
305 | *BufferFileName++ = *RealFileName++;\r | |
306 | }\r | |
307 | *BufferFileName = 0;\r | |
308 | \r | |
309 | *BufferSize = ResultSize;\r | |
310 | return Status;\r | |
311 | }\r | |
312 | \r | |
313 | BOOLEAN\r | |
314 | IsZero (\r | |
315 | IN VOID *Buffer,\r | |
316 | IN UINTN Length\r | |
317 | )\r | |
318 | {\r | |
319 | if (Buffer == NULL || Length == 0) {\r | |
320 | return FALSE;\r | |
321 | }\r | |
322 | \r | |
323 | if (*(UINT8 *) Buffer != 0) {\r | |
324 | return FALSE;\r | |
325 | }\r | |
326 | \r | |
327 | if (Length > 1) {\r | |
328 | if (!CompareMem (Buffer, (UINT8 *) Buffer + 1, Length - 1)) {\r | |
329 | return FALSE;\r | |
330 | }\r | |
331 | }\r | |
332 | \r | |
333 | return TRUE;\r | |
334 | }\r | |
335 | \r | |
336 | \r | |
337 | \r | |
338 | /**\r | |
339 | Opens a new file relative to the source file's location.\r | |
340 | \r | |
341 | @param This The protocol instance pointer.\r | |
342 | @param NewHandle Returns File Handle for FileName.\r | |
343 | @param FileName Null terminated string. "\", ".", and ".." are supported.\r | |
344 | @param OpenMode Open mode for file.\r | |
345 | @param Attributes Only used for EFI_FILE_MODE_CREATE.\r | |
346 | \r | |
347 | @retval EFI_SUCCESS The device was opened.\r | |
348 | @retval EFI_NOT_FOUND The specified file could not be found on the device.\r | |
349 | @retval EFI_NO_MEDIA The device has no media.\r | |
350 | @retval EFI_MEDIA_CHANGED The media has changed.\r | |
351 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
352 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
353 | @retval EFI_ACCESS_DENIED The service denied access to the file.\r | |
354 | @retval EFI_OUT_OF_RESOURCES The volume was not opened due to lack of resources.\r | |
355 | @retval EFI_VOLUME_FULL The volume is full.\r | |
356 | \r | |
357 | **/\r | |
358 | EFI_STATUS\r | |
359 | PosixFileOpen (\r | |
360 | IN EFI_FILE_PROTOCOL *This,\r | |
361 | OUT EFI_FILE_PROTOCOL **NewHandle,\r | |
362 | IN CHAR16 *FileName,\r | |
363 | IN UINT64 OpenMode,\r | |
364 | IN UINT64 Attributes\r | |
365 | )\r | |
366 | {\r | |
367 | EFI_FILE_PROTOCOL *Root;\r | |
368 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
369 | EMU_EFI_FILE_PRIVATE *NewPrivateFile;\r | |
370 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;\r | |
371 | EFI_STATUS Status;\r | |
372 | CHAR16 *Src;\r | |
373 | char *Dst;\r | |
374 | CHAR8 *RealFileName;\r | |
375 | char *ParseFileName;\r | |
376 | char *GuardPointer;\r | |
377 | CHAR8 TempChar;\r | |
378 | UINTN Count;\r | |
379 | BOOLEAN TrailingDash;\r | |
380 | BOOLEAN LoopFinish;\r | |
381 | UINTN InfoSize;\r | |
382 | EFI_FILE_INFO *Info;\r | |
383 | struct stat finfo;\r | |
384 | int res;\r | |
385 | \r | |
386 | \r | |
387 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
388 | PrivateRoot = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);\r | |
389 | NewPrivateFile = NULL;\r | |
390 | Status = EFI_OUT_OF_RESOURCES;\r | |
391 | \r | |
392 | //\r | |
393 | // BUGBUG: assume an open of root\r | |
394 | // if current location, return current data\r | |
395 | //\r | |
396 | TrailingDash = FALSE;\r | |
397 | if ((StrCmp (FileName, L"\\") == 0) ||\r | |
398 | (StrCmp (FileName, L".") == 0 && PrivateFile->IsRootDirectory)) {\r | |
399 | OpenRoot:\r | |
400 | Status = PosixOpenVolume (PrivateFile->SimpleFileSystem, &Root);\r | |
401 | NewPrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (Root);\r | |
402 | goto Done;\r | |
403 | }\r | |
404 | \r | |
405 | if (FileName[StrLen (FileName) - 1] == L'\\') {\r | |
406 | TrailingDash = TRUE;\r | |
407 | FileName[StrLen (FileName) - 1] = 0;\r | |
408 | }\r | |
409 | \r | |
410 | //\r | |
411 | // Attempt to open the file\r | |
412 | //\r | |
413 | NewPrivateFile = malloc (sizeof (EMU_EFI_FILE_PRIVATE));\r | |
414 | if (NewPrivateFile == NULL) {\r | |
415 | goto Done;\r | |
416 | }\r | |
417 | \r | |
418 | CopyMem (NewPrivateFile, PrivateFile, sizeof (EMU_EFI_FILE_PRIVATE));\r | |
419 | \r | |
420 | NewPrivateFile->FileName = malloc (AsciiStrSize (PrivateFile->FileName) + 1 + StrLen (FileName) + 1);\r | |
421 | if (NewPrivateFile->FileName == NULL) {\r | |
422 | goto Done;\r | |
423 | }\r | |
424 | \r | |
425 | if (*FileName == L'\\') {\r | |
426 | AsciiStrCpy (NewPrivateFile->FileName, PrivateRoot->FilePath);\r | |
427 | // Skip first '\'.\r | |
428 | Src = FileName + 1;\r | |
429 | } else {\r | |
430 | AsciiStrCpy (NewPrivateFile->FileName, PrivateFile->FileName);\r | |
431 | Src = FileName;\r | |
432 | }\r | |
433 | Dst = NewPrivateFile->FileName + AsciiStrLen (NewPrivateFile->FileName);\r | |
434 | GuardPointer = NewPrivateFile->FileName + AsciiStrLen (PrivateRoot->FilePath);\r | |
435 | *Dst++ = '/';\r | |
436 | // Convert unicode to ascii and '\' to '/'\r | |
437 | while (*Src) {\r | |
438 | if (*Src == '\\') {\r | |
439 | *Dst++ = '/';\r | |
440 | } else {\r | |
441 | *Dst++ = *Src;\r | |
442 | }\r | |
443 | Src++;\r | |
444 | }\r | |
445 | *Dst = 0;\r | |
446 | \r | |
447 | \r | |
448 | //\r | |
449 | // Get rid of . and .., except leading . or ..\r | |
450 | //\r | |
451 | \r | |
452 | //\r | |
453 | // GuardPointer protect simplefilesystem root path not be destroyed\r | |
454 | //\r | |
455 | \r | |
456 | LoopFinish = FALSE;\r | |
457 | while (!LoopFinish) {\r | |
458 | LoopFinish = TRUE;\r | |
459 | \r | |
460 | for (ParseFileName = GuardPointer; *ParseFileName; ParseFileName++) {\r | |
461 | if (*ParseFileName == '.' &&\r | |
462 | (*(ParseFileName + 1) == 0 || *(ParseFileName + 1) == '/') &&\r | |
463 | *(ParseFileName - 1) == '/'\r | |
464 | ) {\r | |
465 | \r | |
466 | //\r | |
467 | // cut /.\r | |
468 | //\r | |
469 | CutPrefix (ParseFileName - 1, 2);\r | |
470 | LoopFinish = FALSE;\r | |
471 | break;\r | |
472 | }\r | |
473 | \r | |
474 | if (*ParseFileName == '.' &&\r | |
475 | *(ParseFileName + 1) == '.' &&\r | |
476 | (*(ParseFileName + 2) == 0 || *(ParseFileName + 2) == '/') &&\r | |
477 | *(ParseFileName - 1) == '/'\r | |
478 | ) {\r | |
479 | \r | |
480 | ParseFileName--;\r | |
481 | Count = 3;\r | |
482 | \r | |
483 | while (ParseFileName != GuardPointer) {\r | |
484 | ParseFileName--;\r | |
485 | Count++;\r | |
486 | if (*ParseFileName == '/') {\r | |
487 | break;\r | |
488 | }\r | |
489 | }\r | |
490 | \r | |
491 | //\r | |
492 | // cut /.. and its left directory\r | |
493 | //\r | |
494 | CutPrefix (ParseFileName, Count);\r | |
495 | LoopFinish = FALSE;\r | |
496 | break;\r | |
497 | }\r | |
498 | }\r | |
499 | }\r | |
500 | \r | |
501 | if (AsciiStrCmp (NewPrivateFile->FileName, PrivateRoot->FilePath) == 0) {\r | |
502 | NewPrivateFile->IsRootDirectory = TRUE;\r | |
503 | free (NewPrivateFile->FileName);\r | |
504 | free (NewPrivateFile);\r | |
505 | goto OpenRoot;\r | |
506 | }\r | |
507 | \r | |
508 | RealFileName = NewPrivateFile->FileName + AsciiStrLen(NewPrivateFile->FileName) - 1;\r | |
509 | while (RealFileName > NewPrivateFile->FileName && *RealFileName != '/') {\r | |
510 | RealFileName--;\r | |
511 | }\r | |
512 | \r | |
513 | TempChar = *(RealFileName - 1);\r | |
514 | *(RealFileName - 1) = 0;\r | |
515 | *(RealFileName - 1) = TempChar;\r | |
516 | \r | |
517 | \r | |
518 | //\r | |
519 | // Test whether file or directory\r | |
520 | //\r | |
521 | NewPrivateFile->IsRootDirectory = FALSE;\r | |
522 | NewPrivateFile->fd = -1;\r | |
523 | NewPrivateFile->Dir = NULL;\r | |
524 | if (OpenMode & EFI_FILE_MODE_CREATE) {\r | |
525 | if (Attributes & EFI_FILE_DIRECTORY) {\r | |
526 | NewPrivateFile->IsDirectoryPath = TRUE;\r | |
527 | } else {\r | |
528 | NewPrivateFile->IsDirectoryPath = FALSE;\r | |
529 | }\r | |
530 | } else {\r | |
531 | res = stat (NewPrivateFile->FileName, &finfo);\r | |
532 | if (res == 0 && S_ISDIR(finfo.st_mode)) {\r | |
533 | NewPrivateFile->IsDirectoryPath = TRUE;\r | |
534 | } else {\r | |
535 | NewPrivateFile->IsDirectoryPath = FALSE;\r | |
536 | }\r | |
537 | }\r | |
538 | \r | |
539 | if (OpenMode & EFI_FILE_MODE_WRITE) {\r | |
540 | NewPrivateFile->IsOpenedByRead = FALSE;\r | |
541 | } else {\r | |
542 | NewPrivateFile->IsOpenedByRead = TRUE;\r | |
543 | }\r | |
544 | \r | |
545 | Status = EFI_SUCCESS;\r | |
546 | \r | |
547 | //\r | |
548 | // deal with directory\r | |
549 | //\r | |
550 | if (NewPrivateFile->IsDirectoryPath) {\r | |
551 | if ((OpenMode & EFI_FILE_MODE_CREATE)) {\r | |
552 | //\r | |
553 | // Create a directory\r | |
554 | //\r | |
555 | if (mkdir (NewPrivateFile->FileName, 0777) != 0) {\r | |
556 | if (errno != EEXIST) {\r | |
557 | //free (TempFileName);\r | |
558 | Status = EFI_ACCESS_DENIED;\r | |
559 | goto Done;\r | |
560 | }\r | |
561 | }\r | |
562 | }\r | |
563 | \r | |
564 | NewPrivateFile->Dir = opendir (NewPrivateFile->FileName);\r | |
565 | if (NewPrivateFile->Dir == NULL) {\r | |
566 | if (errno == EACCES) {\r | |
567 | Status = EFI_ACCESS_DENIED;\r | |
568 | } else {\r | |
569 | Status = EFI_NOT_FOUND;\r | |
570 | }\r | |
571 | \r | |
572 | goto Done;\r | |
573 | }\r | |
574 | \r | |
575 | } else {\r | |
576 | //\r | |
577 | // deal with file\r | |
578 | //\r | |
579 | NewPrivateFile->fd = open (\r | |
580 | NewPrivateFile->FileName,\r | |
581 | ((OpenMode & EFI_FILE_MODE_CREATE) ? O_CREAT : 0) | (NewPrivateFile->IsOpenedByRead ? O_RDONLY : O_RDWR),\r | |
582 | 0666\r | |
583 | );\r | |
584 | if (NewPrivateFile->fd < 0) {\r | |
585 | if (errno == ENOENT) {\r | |
586 | Status = EFI_NOT_FOUND;\r | |
587 | } else {\r | |
588 | Status = EFI_ACCESS_DENIED;\r | |
589 | }\r | |
590 | }\r | |
591 | }\r | |
592 | \r | |
593 | if ((OpenMode & EFI_FILE_MODE_CREATE) && Status == EFI_SUCCESS) {\r | |
594 | //\r | |
595 | // Set the attribute\r | |
596 | //\r | |
597 | InfoSize = 0;\r | |
598 | Info = NULL;\r | |
599 | Status = PosixFileGetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, &InfoSize, Info);\r | |
600 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
601 | Status = EFI_DEVICE_ERROR;\r | |
602 | goto Done;\r | |
603 | }\r | |
604 | \r | |
605 | Info = malloc (InfoSize);\r | |
606 | if (Info == NULL) {\r | |
607 | goto Done;\r | |
608 | }\r | |
609 | \r | |
610 | Status = PosixFileGetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, &InfoSize, Info);\r | |
611 | if (EFI_ERROR (Status)) {\r | |
612 | goto Done;\r | |
613 | }\r | |
614 | \r | |
615 | Info->Attribute = Attributes;\r | |
616 | PosixFileSetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, InfoSize, Info);\r | |
617 | \r | |
618 | free (Info);\r | |
619 | }\r | |
620 | \r | |
621 | Done: ;\r | |
622 | if (TrailingDash) {\r | |
623 | FileName[StrLen (FileName) + 1] = 0;\r | |
624 | FileName[StrLen (FileName)] = L'\\';\r | |
625 | }\r | |
626 | \r | |
627 | if (EFI_ERROR (Status)) {\r | |
628 | if (NewPrivateFile) {\r | |
629 | if (NewPrivateFile->FileName) {\r | |
630 | free (NewPrivateFile->FileName);\r | |
631 | }\r | |
632 | \r | |
633 | free (NewPrivateFile);\r | |
634 | }\r | |
635 | } else {\r | |
636 | *NewHandle = &NewPrivateFile->EfiFile;\r | |
637 | }\r | |
638 | \r | |
639 | return Status;\r | |
640 | }\r | |
641 | \r | |
642 | \r | |
643 | \r | |
644 | /**\r | |
645 | Close the file handle\r | |
646 | \r | |
647 | @param This Protocol instance pointer.\r | |
648 | \r | |
649 | @retval EFI_SUCCESS The device was opened.\r | |
650 | \r | |
651 | **/\r | |
652 | EFI_STATUS\r | |
653 | PosixFileCLose (\r | |
654 | IN EFI_FILE_PROTOCOL *This\r | |
655 | )\r | |
656 | {\r | |
657 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
658 | \r | |
659 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
660 | \r | |
661 | if (PrivateFile->fd >= 0) {\r | |
662 | close (PrivateFile->fd);\r | |
663 | }\r | |
664 | if (PrivateFile->Dir != NULL) {\r | |
665 | closedir (PrivateFile->Dir);\r | |
666 | }\r | |
667 | \r | |
668 | PrivateFile->fd = -1;\r | |
669 | PrivateFile->Dir = NULL;\r | |
670 | \r | |
671 | if (PrivateFile->FileName) {\r | |
672 | free (PrivateFile->FileName);\r | |
673 | }\r | |
674 | \r | |
675 | free (PrivateFile);\r | |
676 | \r | |
677 | return EFI_SUCCESS;\r | |
678 | }\r | |
679 | \r | |
680 | \r | |
681 | /**\r | |
682 | Close and delete the file handle.\r | |
683 | \r | |
684 | @param This Protocol instance pointer.\r | |
685 | \r | |
686 | @retval EFI_SUCCESS The device was opened.\r | |
687 | @retval EFI_WARN_DELETE_FAILURE The handle was closed but the file was not deleted.\r | |
688 | \r | |
689 | **/\r | |
690 | EFI_STATUS\r | |
691 | PosixFileDelete (\r | |
692 | IN EFI_FILE_PROTOCOL *This\r | |
693 | )\r | |
694 | {\r | |
695 | EFI_STATUS Status;\r | |
696 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
697 | \r | |
698 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
699 | Status = EFI_WARN_DELETE_FAILURE;\r | |
700 | \r | |
701 | if (PrivateFile->IsDirectoryPath) {\r | |
702 | if (PrivateFile->Dir != NULL) {\r | |
703 | closedir (PrivateFile->Dir);\r | |
704 | PrivateFile->Dir = NULL;\r | |
705 | }\r | |
706 | \r | |
707 | if (rmdir (PrivateFile->FileName) == 0) {\r | |
708 | Status = EFI_SUCCESS;\r | |
709 | }\r | |
710 | } else {\r | |
711 | close (PrivateFile->fd);\r | |
712 | PrivateFile->fd = -1;\r | |
713 | \r | |
714 | if (!PrivateFile->IsOpenedByRead) {\r | |
715 | if (!unlink (PrivateFile->FileName)) {\r | |
716 | Status = EFI_SUCCESS;\r | |
717 | }\r | |
718 | }\r | |
719 | }\r | |
720 | \r | |
721 | free (PrivateFile->FileName);\r | |
722 | free (PrivateFile);\r | |
723 | \r | |
724 | return Status;\r | |
725 | }\r | |
726 | \r | |
727 | \r | |
728 | /**\r | |
729 | Read data from the file.\r | |
730 | \r | |
731 | @param This Protocol instance pointer.\r | |
732 | @param BufferSize On input size of buffer, on output amount of data in buffer.\r | |
733 | @param Buffer The buffer in which data is read.\r | |
734 | \r | |
735 | @retval EFI_SUCCESS Data was read.\r | |
736 | @retval EFI_NO_MEDIA The device has no media.\r | |
737 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
738 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
739 | @retval EFI_BUFFER_TO_SMALL BufferSize is too small. BufferSize contains required size.\r | |
740 | \r | |
741 | **/\r | |
742 | EFI_STATUS\r | |
743 | PosixFileRead (\r | |
744 | IN EFI_FILE_PROTOCOL *This,\r | |
745 | IN OUT UINTN *BufferSize,\r | |
746 | OUT VOID *Buffer\r | |
747 | )\r | |
748 | {\r | |
749 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
750 | EFI_STATUS Status;\r | |
751 | int Res;\r | |
752 | UINTN Size;\r | |
753 | UINTN NameSize;\r | |
754 | UINTN ResultSize;\r | |
755 | CHAR8 *FullFileName;\r | |
756 | \r | |
757 | \r | |
758 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
759 | \r | |
760 | if (!PrivateFile->IsDirectoryPath) {\r | |
761 | if (PrivateFile->fd < 0) {\r | |
762 | Status = EFI_DEVICE_ERROR;\r | |
763 | goto Done;\r | |
764 | }\r | |
765 | \r | |
766 | Res = read (PrivateFile->fd, Buffer, *BufferSize);\r | |
767 | if (Res < 0) {\r | |
768 | Status = EFI_DEVICE_ERROR;\r | |
769 | goto Done;\r | |
770 | }\r | |
771 | *BufferSize = Res;\r | |
772 | Status = EFI_SUCCESS;\r | |
773 | goto Done;\r | |
774 | }\r | |
775 | \r | |
776 | //\r | |
777 | // Read on a directory.\r | |
778 | //\r | |
779 | if (PrivateFile->Dir == NULL) {\r | |
780 | Status = EFI_DEVICE_ERROR;\r | |
781 | goto Done;\r | |
782 | }\r | |
783 | \r | |
784 | if (PrivateFile->Dirent == NULL) {\r | |
785 | PrivateFile->Dirent = readdir (PrivateFile->Dir);\r | |
786 | if (PrivateFile->Dirent == NULL) {\r | |
787 | *BufferSize = 0;\r | |
788 | Status = EFI_SUCCESS;\r | |
789 | goto Done;\r | |
790 | }\r | |
791 | }\r | |
792 | \r | |
793 | Size = SIZE_OF_EFI_FILE_INFO;\r | |
794 | NameSize = AsciiStrLen (PrivateFile->Dirent->d_name) + 1;\r | |
795 | ResultSize = Size + 2 * NameSize;\r | |
796 | \r | |
797 | if (*BufferSize < ResultSize) {\r | |
798 | *BufferSize = ResultSize;\r | |
799 | Status = EFI_BUFFER_TOO_SMALL;\r | |
800 | goto Done;\r | |
801 | }\r | |
802 | Status = EFI_SUCCESS;\r | |
803 | \r | |
804 | *BufferSize = ResultSize;\r | |
805 | \r | |
806 | FullFileName = malloc (AsciiStrLen(PrivateFile->FileName) + 1 + NameSize);\r | |
807 | if (FullFileName == NULL) {\r | |
808 | Status = EFI_OUT_OF_RESOURCES;\r | |
809 | goto Done;\r | |
810 | }\r | |
811 | \r | |
812 | AsciiStrCpy (FullFileName, PrivateFile->FileName);\r | |
813 | AsciiStrCat (FullFileName, "/");\r | |
814 | AsciiStrCat (FullFileName, PrivateFile->Dirent->d_name);\r | |
815 | Status = UnixSimpleFileSystemFileInfo (\r | |
816 | PrivateFile,\r | |
817 | FullFileName,\r | |
818 | BufferSize,\r | |
819 | Buffer\r | |
820 | );\r | |
821 | free (FullFileName);\r | |
822 | \r | |
823 | PrivateFile->Dirent = NULL;\r | |
824 | \r | |
825 | Done:\r | |
826 | return Status;\r | |
827 | }\r | |
828 | \r | |
829 | \r | |
830 | \r | |
831 | /**\r | |
832 | Write data to a file.\r | |
833 | \r | |
834 | @param This Protocol instance pointer.\r | |
835 | @param BufferSize On input size of buffer, on output amount of data in buffer.\r | |
836 | @param Buffer The buffer in which data to write.\r | |
837 | \r | |
838 | @retval EFI_SUCCESS Data was written.\r | |
839 | @retval EFI_UNSUPPORTED Writes to Open directory are not supported.\r | |
840 | @retval EFI_NO_MEDIA The device has no media.\r | |
841 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
842 | @retval EFI_DEVICE_ERROR An attempt was made to write to a deleted file.\r | |
843 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
844 | @retval EFI_WRITE_PROTECTED The device is write protected.\r | |
845 | @retval EFI_ACCESS_DENIED The file was open for read only.\r | |
846 | @retval EFI_VOLUME_FULL The volume is full.\r | |
847 | \r | |
848 | **/\r | |
849 | EFI_STATUS\r | |
850 | PosixFileWrite (\r | |
851 | IN EFI_FILE_PROTOCOL *This,\r | |
852 | IN OUT UINTN *BufferSize,\r | |
853 | IN VOID *Buffer\r | |
854 | )\r | |
855 | {\r | |
856 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
857 | int Res;\r | |
858 | \r | |
859 | \r | |
860 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
861 | \r | |
862 | if (PrivateFile->fd < 0) {\r | |
863 | return EFI_DEVICE_ERROR;\r | |
864 | }\r | |
865 | \r | |
866 | if (PrivateFile->IsDirectoryPath) {\r | |
867 | return EFI_UNSUPPORTED;\r | |
868 | }\r | |
869 | \r | |
870 | if (PrivateFile->IsOpenedByRead) {\r | |
871 | return EFI_ACCESS_DENIED;\r | |
872 | }\r | |
873 | \r | |
874 | Res = write (PrivateFile->fd, Buffer, *BufferSize);\r | |
875 | if (Res == (UINTN)-1) {\r | |
876 | return ErrnoToEfiStatus ();\r | |
877 | }\r | |
878 | \r | |
879 | *BufferSize = Res;\r | |
880 | return EFI_SUCCESS;\r | |
881 | }\r | |
882 | \r | |
883 | \r | |
884 | \r | |
885 | /**\r | |
886 | Set a files current position\r | |
887 | \r | |
888 | @param This Protocol instance pointer.\r | |
889 | @param Position Byte position from the start of the file.\r | |
890 | \r | |
891 | @retval EFI_SUCCESS Data was written.\r | |
892 | @retval EFI_UNSUPPORTED Seek request for non-zero is not valid on open.\r | |
893 | \r | |
894 | **/\r | |
895 | EFI_STATUS\r | |
896 | PosixFileSetPossition (\r | |
897 | IN EFI_FILE_PROTOCOL *This,\r | |
898 | IN UINT64 Position\r | |
899 | )\r | |
900 | {\r | |
901 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
902 | off_t Pos;\r | |
903 | \r | |
904 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
905 | \r | |
906 | if (PrivateFile->IsDirectoryPath) {\r | |
907 | if (Position != 0) {\r | |
908 | return EFI_UNSUPPORTED;\r | |
909 | }\r | |
910 | \r | |
911 | if (PrivateFile->Dir == NULL) {\r | |
912 | return EFI_DEVICE_ERROR;\r | |
913 | }\r | |
914 | rewinddir (PrivateFile->Dir);\r | |
915 | return EFI_SUCCESS;\r | |
916 | } else {\r | |
917 | if (Position == (UINT64) -1) {\r | |
918 | Pos = lseek (PrivateFile->fd, 0, SEEK_END);\r | |
919 | } else {\r | |
920 | Pos = lseek (PrivateFile->fd, Position, SEEK_SET);\r | |
921 | }\r | |
922 | if (Pos == (off_t)-1) {\r | |
923 | return ErrnoToEfiStatus ();\r | |
924 | }\r | |
925 | return EFI_SUCCESS;\r | |
926 | }\r | |
927 | }\r | |
928 | \r | |
929 | \r | |
930 | \r | |
931 | /**\r | |
932 | Get a file's current position\r | |
933 | \r | |
934 | @param This Protocol instance pointer.\r | |
935 | @param Position Byte position from the start of the file.\r | |
936 | \r | |
937 | @retval EFI_SUCCESS Data was written.\r | |
938 | @retval EFI_UNSUPPORTED Seek request for non-zero is not valid on open..\r | |
939 | \r | |
940 | **/\r | |
941 | EFI_STATUS\r | |
942 | PosixFileGetPossition (\r | |
943 | IN EFI_FILE_PROTOCOL *This,\r | |
944 | OUT UINT64 *Position\r | |
945 | )\r | |
946 | {\r | |
947 | EFI_STATUS Status;\r | |
948 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
949 | \r | |
950 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
951 | \r | |
952 | if (PrivateFile->IsDirectoryPath) {\r | |
953 | Status = EFI_UNSUPPORTED;\r | |
954 | } else {\r | |
955 | *Position = (UINT64)lseek (PrivateFile->fd, 0, SEEK_CUR);\r | |
956 | Status = (*Position == (UINT64) -1) ? ErrnoToEfiStatus () : EFI_SUCCESS;\r | |
957 | }\r | |
958 | \r | |
959 | return Status;\r | |
960 | }\r | |
961 | \r | |
962 | \r | |
963 | /**\r | |
964 | Get information about a file.\r | |
965 | \r | |
966 | @param This Protocol instance pointer.\r | |
967 | @param InformationType Type of information to return in Buffer.\r | |
968 | @param BufferSize On input size of buffer, on output amount of data in buffer.\r | |
969 | @param Buffer The buffer to return data.\r | |
970 | \r | |
971 | @retval EFI_SUCCESS Data was returned.\r | |
972 | @retval EFI_UNSUPPORTED InformationType is not supported.\r | |
973 | @retval EFI_NO_MEDIA The device has no media.\r | |
974 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
975 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
976 | @retval EFI_WRITE_PROTECTED The device is write protected.\r | |
977 | @retval EFI_ACCESS_DENIED The file was open for read only.\r | |
978 | @retval EFI_BUFFER_TOO_SMALL Buffer was too small; required size returned in BufferSize.\r | |
979 | \r | |
980 | **/\r | |
981 | EFI_STATUS\r | |
982 | PosixFileGetInfo (\r | |
983 | IN EFI_FILE_PROTOCOL *This,\r | |
984 | IN EFI_GUID *InformationType,\r | |
985 | IN OUT UINTN *BufferSize,\r | |
986 | OUT VOID *Buffer\r | |
987 | )\r | |
988 | {\r | |
989 | EFI_STATUS Status;\r | |
990 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
991 | EFI_FILE_SYSTEM_INFO *FileSystemInfoBuffer;\r | |
992 | int UnixStatus;\r | |
993 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;\r | |
994 | struct statfs buf;\r | |
995 | \r | |
996 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
997 | PrivateRoot = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);\r | |
998 | \r | |
999 | Status = EFI_SUCCESS;\r | |
1000 | if (CompareGuid (InformationType, &gEfiFileInfoGuid)) {\r | |
1001 | Status = UnixSimpleFileSystemFileInfo (PrivateFile, NULL, BufferSize, Buffer);\r | |
1002 | } else if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {\r | |
1003 | if (*BufferSize < SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel)) {\r | |
1004 | *BufferSize = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel);\r | |
1005 | return EFI_BUFFER_TOO_SMALL;\r | |
1006 | }\r | |
1007 | \r | |
1008 | UnixStatus = statfs (PrivateFile->FileName, &buf);\r | |
1009 | if (UnixStatus < 0) {\r | |
1010 | return EFI_DEVICE_ERROR;\r | |
1011 | }\r | |
1012 | \r | |
1013 | FileSystemInfoBuffer = (EFI_FILE_SYSTEM_INFO *) Buffer;\r | |
1014 | FileSystemInfoBuffer->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel);\r | |
1015 | FileSystemInfoBuffer->ReadOnly = FALSE;\r | |
1016 | \r | |
1017 | //\r | |
1018 | // Succeeded\r | |
1019 | //\r | |
1020 | FileSystemInfoBuffer->VolumeSize = MultU64x32 (buf.f_blocks, buf.f_bsize);\r | |
1021 | FileSystemInfoBuffer->FreeSpace = MultU64x32 (buf.f_bavail, buf.f_bsize);\r | |
1022 | FileSystemInfoBuffer->BlockSize = buf.f_bsize;\r | |
1023 | \r | |
1024 | \r | |
1025 | StrCpy ((CHAR16 *) FileSystemInfoBuffer->VolumeLabel, PrivateRoot->VolumeLabel);\r | |
1026 | *BufferSize = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel);\r | |
1027 | \r | |
1028 | } else if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) {\r | |
1029 | if (*BufferSize < StrSize (PrivateRoot->VolumeLabel)) {\r | |
1030 | *BufferSize = StrSize (PrivateRoot->VolumeLabel);\r | |
1031 | return EFI_BUFFER_TOO_SMALL;\r | |
1032 | }\r | |
1033 | \r | |
1034 | StrCpy ((CHAR16 *) Buffer, PrivateRoot->VolumeLabel);\r | |
1035 | *BufferSize = StrSize (PrivateRoot->VolumeLabel);\r | |
1036 | \r | |
1037 | }\r | |
1038 | \r | |
1039 | return Status;\r | |
1040 | }\r | |
1041 | \r | |
1042 | \r | |
1043 | /**\r | |
1044 | Set information about a file\r | |
1045 | \r | |
1046 | @param File Protocol instance pointer.\r | |
1047 | @param InformationType Type of information in Buffer.\r | |
1048 | @param BufferSize Size of buffer.\r | |
1049 | @param Buffer The data to write.\r | |
1050 | \r | |
1051 | @retval EFI_SUCCESS Data was returned.\r | |
1052 | @retval EFI_UNSUPPORTED InformationType is not supported.\r | |
1053 | @retval EFI_NO_MEDIA The device has no media.\r | |
1054 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
1055 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
1056 | @retval EFI_WRITE_PROTECTED The device is write protected.\r | |
1057 | @retval EFI_ACCESS_DENIED The file was open for read only.\r | |
1058 | \r | |
1059 | **/\r | |
1060 | EFI_STATUS\r | |
1061 | PosixFileSetInfo (\r | |
1062 | IN EFI_FILE_PROTOCOL *This,\r | |
1063 | IN EFI_GUID *InformationType,\r | |
1064 | IN UINTN BufferSize,\r | |
1065 | IN VOID *Buffer\r | |
1066 | )\r | |
1067 | {\r | |
1068 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;\r | |
1069 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
1070 | EFI_FILE_INFO *OldFileInfo;\r | |
1071 | EFI_FILE_INFO *NewFileInfo;\r | |
1072 | EFI_STATUS Status;\r | |
1073 | UINTN OldInfoSize;\r | |
1074 | mode_t NewAttr;\r | |
1075 | struct stat OldAttr;\r | |
1076 | CHAR8 *OldFileName;\r | |
1077 | CHAR8 *NewFileName;\r | |
1078 | CHAR8 *CharPointer;\r | |
1079 | BOOLEAN AttrChangeFlag;\r | |
1080 | BOOLEAN NameChangeFlag;\r | |
1081 | BOOLEAN SizeChangeFlag;\r | |
1082 | BOOLEAN TimeChangeFlag;\r | |
1083 | struct tm NewLastAccessSystemTime;\r | |
1084 | struct tm NewLastWriteSystemTime;\r | |
1085 | EFI_FILE_SYSTEM_INFO *NewFileSystemInfo;\r | |
1086 | CHAR8 *AsciiFilePtr;\r | |
1087 | CHAR16 *UnicodeFilePtr;\r | |
1088 | int UnixStatus;\r | |
1089 | struct utimbuf Utime;\r | |
1090 | \r | |
1091 | \r | |
1092 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
1093 | PrivateRoot = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);\r | |
1094 | errno = 0;\r | |
1095 | Status = EFI_UNSUPPORTED;\r | |
1096 | OldFileInfo = NewFileInfo = NULL;\r | |
1097 | OldFileName = NewFileName = NULL;\r | |
1098 | AttrChangeFlag = NameChangeFlag = SizeChangeFlag = TimeChangeFlag = FALSE;\r | |
1099 | \r | |
1100 | //\r | |
1101 | // Set file system information.\r | |
1102 | //\r | |
1103 | if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {\r | |
1104 | if (BufferSize < (SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel))) {\r | |
1105 | Status = EFI_BAD_BUFFER_SIZE;\r | |
1106 | goto Done;\r | |
1107 | }\r | |
1108 | \r | |
1109 | NewFileSystemInfo = (EFI_FILE_SYSTEM_INFO *) Buffer;\r | |
1110 | \r | |
1111 | free (PrivateRoot->VolumeLabel);\r | |
1112 | \r | |
1113 | PrivateRoot->VolumeLabel = malloc (StrSize (NewFileSystemInfo->VolumeLabel));\r | |
1114 | if (PrivateRoot->VolumeLabel == NULL) {\r | |
1115 | goto Done;\r | |
1116 | }\r | |
1117 | \r | |
1118 | StrCpy (PrivateRoot->VolumeLabel, NewFileSystemInfo->VolumeLabel);\r | |
1119 | \r | |
1120 | Status = EFI_SUCCESS;\r | |
1121 | goto Done;\r | |
1122 | }\r | |
1123 | \r | |
1124 | //\r | |
1125 | // Set volume label information.\r | |
1126 | //\r | |
1127 | if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) {\r | |
1128 | if (BufferSize < StrSize (PrivateRoot->VolumeLabel)) {\r | |
1129 | Status = EFI_BAD_BUFFER_SIZE;\r | |
1130 | goto Done;\r | |
1131 | }\r | |
1132 | \r | |
1133 | StrCpy (PrivateRoot->VolumeLabel, (CHAR16 *) Buffer);\r | |
1134 | \r | |
1135 | Status = EFI_SUCCESS;\r | |
1136 | goto Done;\r | |
1137 | }\r | |
1138 | \r | |
1139 | if (!CompareGuid (InformationType, &gEfiFileInfoGuid)) {\r | |
1140 | Status = EFI_UNSUPPORTED;\r | |
1141 | goto Done;\r | |
1142 | }\r | |
1143 | \r | |
1144 | if (BufferSize < SIZE_OF_EFI_FILE_INFO) {\r | |
1145 | Status = EFI_BAD_BUFFER_SIZE;\r | |
1146 | goto Done;\r | |
1147 | }\r | |
1148 | \r | |
1149 | //\r | |
1150 | // Set file/directory information.\r | |
1151 | //\r | |
1152 | \r | |
1153 | //\r | |
1154 | // Check for invalid set file information parameters.\r | |
1155 | //\r | |
1156 | NewFileInfo = (EFI_FILE_INFO *) Buffer;\r | |
1157 | if (NewFileInfo->Size <= sizeof (EFI_FILE_INFO) ||\r | |
1158 | (NewFileInfo->Attribute &~(EFI_FILE_VALID_ATTR)) ||\r | |
1159 | (sizeof (UINTN) == 4 && NewFileInfo->Size > 0xFFFFFFFF)\r | |
1160 | ) {\r | |
1161 | Status = EFI_INVALID_PARAMETER;\r | |
1162 | goto Done;\r | |
1163 | }\r | |
1164 | \r | |
1165 | //\r | |
1166 | // Get current file information so we can determine what kind\r | |
1167 | // of change request this is.\r | |
1168 | //\r | |
1169 | OldInfoSize = 0;\r | |
1170 | Status = UnixSimpleFileSystemFileInfo (PrivateFile, NULL, &OldInfoSize, NULL);\r | |
1171 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
1172 | Status = EFI_DEVICE_ERROR;\r | |
1173 | goto Done;\r | |
1174 | }\r | |
1175 | \r | |
1176 | OldFileInfo = malloc (OldInfoSize);\r | |
1177 | if (OldFileInfo == NULL) {\r | |
1178 | goto Done;\r | |
1179 | }\r | |
1180 | \r | |
1181 | Status = UnixSimpleFileSystemFileInfo (PrivateFile, NULL, &OldInfoSize, OldFileInfo);\r | |
1182 | if (EFI_ERROR (Status)) {\r | |
1183 | goto Done;\r | |
1184 | }\r | |
1185 | \r | |
1186 | OldFileName = malloc (AsciiStrSize (PrivateFile->FileName));\r | |
1187 | if (OldFileInfo == NULL) {\r | |
1188 | goto Done;\r | |
1189 | }\r | |
1190 | \r | |
1191 | AsciiStrCpy (OldFileName, PrivateFile->FileName);\r | |
1192 | \r | |
1193 | //\r | |
1194 | // Make full pathname from new filename and rootpath.\r | |
1195 | //\r | |
1196 | if (NewFileInfo->FileName[0] == '\\') {\r | |
1197 | NewFileName = malloc (AsciiStrLen (PrivateRoot->FilePath) + 1 + StrLen (NewFileInfo->FileName) + 1);\r | |
1198 | if (NewFileName == NULL) {\r | |
1199 | goto Done;\r | |
1200 | }\r | |
1201 | \r | |
1202 | AsciiStrCpy (NewFileName, PrivateRoot->FilePath);\r | |
1203 | AsciiFilePtr = NewFileName + AsciiStrLen(NewFileName);\r | |
1204 | UnicodeFilePtr = NewFileInfo->FileName + 1;\r | |
1205 | *AsciiFilePtr++ ='/';\r | |
1206 | } else {\r | |
1207 | NewFileName = malloc (AsciiStrLen (PrivateFile->FileName) + 2 + StrLen (NewFileInfo->FileName) + 1);\r | |
1208 | if (NewFileName == NULL) {\r | |
1209 | goto Done;\r | |
1210 | }\r | |
1211 | \r | |
1212 | AsciiStrCpy (NewFileName, PrivateRoot->FilePath);\r | |
1213 | AsciiFilePtr = NewFileName + AsciiStrLen(NewFileName);\r | |
1214 | if ((AsciiFilePtr[-1] != '/') && (NewFileInfo->FileName[0] != '/')) {\r | |
1215 | // make sure there is a / between Root FilePath and NewFileInfo Filename\r | |
1216 | AsciiFilePtr[0] = '/';\r | |
1217 | AsciiFilePtr[1] = '\0';\r | |
1218 | AsciiFilePtr++;\r | |
1219 | }\r | |
1220 | UnicodeFilePtr = NewFileInfo->FileName;\r | |
1221 | }\r | |
1222 | // Convert to ascii.\r | |
1223 | while (*UnicodeFilePtr) {\r | |
1224 | *AsciiFilePtr++ = *UnicodeFilePtr++;\r | |
1225 | }\r | |
1226 | *AsciiFilePtr = 0;\r | |
1227 | \r | |
1228 | //\r | |
1229 | // Is there an attribute change request?\r | |
1230 | //\r | |
1231 | if (NewFileInfo->Attribute != OldFileInfo->Attribute) {\r | |
1232 | if ((NewFileInfo->Attribute & EFI_FILE_DIRECTORY) != (OldFileInfo->Attribute & EFI_FILE_DIRECTORY)) {\r | |
1233 | Status = EFI_INVALID_PARAMETER;\r | |
1234 | goto Done;\r | |
1235 | }\r | |
1236 | \r | |
1237 | AttrChangeFlag = TRUE;\r | |
1238 | }\r | |
1239 | \r | |
1240 | //\r | |
1241 | // Is there a name change request?\r | |
1242 | // bugbug: - Should really use EFI_UNICODE_COLLATION_PROTOCOL\r | |
1243 | //\r | |
1244 | if (StrCmp (NewFileInfo->FileName, OldFileInfo->FileName)) {\r | |
1245 | NameChangeFlag = TRUE;\r | |
1246 | }\r | |
1247 | \r | |
1248 | //\r | |
1249 | // Is there a size change request?\r | |
1250 | //\r | |
1251 | if (NewFileInfo->FileSize != OldFileInfo->FileSize) {\r | |
1252 | SizeChangeFlag = TRUE;\r | |
1253 | }\r | |
1254 | \r | |
1255 | //\r | |
1256 | // Is there a time stamp change request?\r | |
1257 | //\r | |
1258 | if (!IsZero (&NewFileInfo->CreateTime, sizeof (EFI_TIME)) &&\r | |
1259 | CompareMem (&NewFileInfo->CreateTime, &OldFileInfo->CreateTime, sizeof (EFI_TIME))\r | |
1260 | ) {\r | |
1261 | TimeChangeFlag = TRUE;\r | |
1262 | } else if (!IsZero (&NewFileInfo->LastAccessTime, sizeof (EFI_TIME)) &&\r | |
1263 | CompareMem (&NewFileInfo->LastAccessTime, &OldFileInfo->LastAccessTime, sizeof (EFI_TIME))\r | |
1264 | ) {\r | |
1265 | TimeChangeFlag = TRUE;\r | |
1266 | } else if (!IsZero (&NewFileInfo->ModificationTime, sizeof (EFI_TIME)) &&\r | |
1267 | CompareMem (&NewFileInfo->ModificationTime, &OldFileInfo->ModificationTime, sizeof (EFI_TIME))\r | |
1268 | ) {\r | |
1269 | TimeChangeFlag = TRUE;\r | |
1270 | }\r | |
1271 | \r | |
1272 | //\r | |
1273 | // All done if there are no change requests being made.\r | |
1274 | //\r | |
1275 | if (!(AttrChangeFlag || NameChangeFlag || SizeChangeFlag || TimeChangeFlag)) {\r | |
1276 | Status = EFI_SUCCESS;\r | |
1277 | goto Done;\r | |
1278 | }\r | |
1279 | \r | |
1280 | //\r | |
1281 | // Set file or directory information.\r | |
1282 | //\r | |
1283 | if (stat (OldFileName, &OldAttr) != 0) {\r | |
1284 | Status = ErrnoToEfiStatus ();\r | |
1285 | goto Done;\r | |
1286 | }\r | |
1287 | \r | |
1288 | //\r | |
1289 | // Name change.\r | |
1290 | //\r | |
1291 | if (NameChangeFlag) {\r | |
1292 | //\r | |
1293 | // Close the handles first\r | |
1294 | //\r | |
1295 | if (PrivateFile->IsOpenedByRead) {\r | |
1296 | Status = EFI_ACCESS_DENIED;\r | |
1297 | goto Done;\r | |
1298 | }\r | |
1299 | \r | |
1300 | for (CharPointer = NewFileName; *CharPointer != 0 && *CharPointer != L'/'; CharPointer++) {\r | |
1301 | }\r | |
1302 | \r | |
1303 | if (*CharPointer != 0) {\r | |
1304 | Status = EFI_ACCESS_DENIED;\r | |
1305 | goto Done;\r | |
1306 | }\r | |
1307 | \r | |
1308 | UnixStatus = rename (OldFileName, NewFileName);\r | |
1309 | if (UnixStatus == 0) {\r | |
1310 | //\r | |
1311 | // modify file name\r | |
1312 | //\r | |
1313 | free (PrivateFile->FileName);\r | |
1314 | \r | |
1315 | PrivateFile->FileName = malloc (AsciiStrSize (NewFileName));\r | |
1316 | if (PrivateFile->FileName == NULL) {\r | |
1317 | goto Done;\r | |
1318 | }\r | |
1319 | \r | |
1320 | AsciiStrCpy (PrivateFile->FileName, NewFileName);\r | |
1321 | } else {\r | |
1322 | Status = EFI_DEVICE_ERROR;\r | |
1323 | goto Done;\r | |
1324 | }\r | |
1325 | }\r | |
1326 | \r | |
1327 | //\r | |
1328 | // Size change\r | |
1329 | //\r | |
1330 | if (SizeChangeFlag) {\r | |
1331 | if (PrivateFile->IsDirectoryPath) {\r | |
1332 | Status = EFI_UNSUPPORTED;\r | |
1333 | goto Done;\r | |
1334 | }\r | |
1335 | \r | |
1336 | if (PrivateFile->IsOpenedByRead || OldFileInfo->Attribute & EFI_FILE_READ_ONLY) {\r | |
1337 | Status = EFI_ACCESS_DENIED;\r | |
1338 | goto Done;\r | |
1339 | }\r | |
1340 | \r | |
1341 | if (ftruncate (PrivateFile->fd, NewFileInfo->FileSize) != 0) {\r | |
1342 | Status = ErrnoToEfiStatus ();\r | |
1343 | goto Done;\r | |
1344 | }\r | |
1345 | \r | |
1346 | }\r | |
1347 | \r | |
1348 | //\r | |
1349 | // Time change\r | |
1350 | //\r | |
1351 | if (TimeChangeFlag) {\r | |
1352 | NewLastAccessSystemTime.tm_year = NewFileInfo->LastAccessTime.Year;\r | |
1353 | NewLastAccessSystemTime.tm_mon = NewFileInfo->LastAccessTime.Month;\r | |
1354 | NewLastAccessSystemTime.tm_mday = NewFileInfo->LastAccessTime.Day;\r | |
1355 | NewLastAccessSystemTime.tm_hour = NewFileInfo->LastAccessTime.Hour;\r | |
1356 | NewLastAccessSystemTime.tm_min = NewFileInfo->LastAccessTime.Minute;\r | |
1357 | NewLastAccessSystemTime.tm_sec = NewFileInfo->LastAccessTime.Second;\r | |
1358 | NewLastAccessSystemTime.tm_isdst = 0;\r | |
1359 | \r | |
1360 | Utime.actime = mktime (&NewLastAccessSystemTime);\r | |
1361 | \r | |
1362 | NewLastWriteSystemTime.tm_year = NewFileInfo->ModificationTime.Year;\r | |
1363 | NewLastWriteSystemTime.tm_mon = NewFileInfo->ModificationTime.Month;\r | |
1364 | NewLastWriteSystemTime.tm_mday = NewFileInfo->ModificationTime.Day;\r | |
1365 | NewLastWriteSystemTime.tm_hour = NewFileInfo->ModificationTime.Hour;\r | |
1366 | NewLastWriteSystemTime.tm_min = NewFileInfo->ModificationTime.Minute;\r | |
1367 | NewLastWriteSystemTime.tm_sec = NewFileInfo->ModificationTime.Second;\r | |
1368 | NewLastWriteSystemTime.tm_isdst = 0;\r | |
1369 | \r | |
1370 | Utime.modtime = mktime (&NewLastWriteSystemTime);\r | |
1371 | \r | |
1372 | if (Utime.actime == (time_t)-1 || Utime.modtime == (time_t)-1) {\r | |
1373 | goto Done;\r | |
1374 | }\r | |
1375 | \r | |
1376 | if (utime (PrivateFile->FileName, &Utime) == -1) {\r | |
1377 | Status = ErrnoToEfiStatus ();\r | |
1378 | goto Done;\r | |
1379 | }\r | |
1380 | }\r | |
1381 | \r | |
1382 | //\r | |
1383 | // No matter about AttrChangeFlag, Attribute must be set.\r | |
1384 | // Because operation before may cause attribute change.\r | |
1385 | //\r | |
1386 | NewAttr = OldAttr.st_mode;\r | |
1387 | \r | |
1388 | if (NewFileInfo->Attribute & EFI_FILE_READ_ONLY) {\r | |
1389 | NewAttr &= ~(S_IRUSR | S_IRGRP | S_IROTH);\r | |
1390 | } else {\r | |
1391 | NewAttr |= S_IRUSR;\r | |
1392 | }\r | |
1393 | \r | |
1394 | if (chmod (NewFileName, NewAttr) != 0) {\r | |
1395 | Status = ErrnoToEfiStatus ();\r | |
1396 | }\r | |
1397 | \r | |
1398 | Done:\r | |
1399 | if (OldFileInfo != NULL) {\r | |
1400 | free (OldFileInfo);\r | |
1401 | }\r | |
1402 | \r | |
1403 | if (OldFileName != NULL) {\r | |
1404 | free (OldFileName);\r | |
1405 | }\r | |
1406 | \r | |
1407 | if (NewFileName != NULL) {\r | |
1408 | free (NewFileName);\r | |
1409 | }\r | |
1410 | \r | |
1411 | return Status;\r | |
1412 | }\r | |
1413 | \r | |
1414 | \r | |
1415 | /**\r | |
1416 | Flush data back for the file handle.\r | |
1417 | \r | |
1418 | @param This Protocol instance pointer.\r | |
1419 | \r | |
1420 | @retval EFI_SUCCESS Data was written.\r | |
1421 | @retval EFI_UNSUPPORTED Writes to Open directory are not supported.\r | |
1422 | @retval EFI_NO_MEDIA The device has no media.\r | |
1423 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
1424 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
1425 | @retval EFI_WRITE_PROTECTED The device is write protected.\r | |
1426 | @retval EFI_ACCESS_DENIED The file was open for read only.\r | |
1427 | @retval EFI_VOLUME_FULL The volume is full.\r | |
1428 | \r | |
1429 | **/\r | |
1430 | EFI_STATUS\r | |
1431 | PosixFileFlush (\r | |
1432 | IN EFI_FILE_PROTOCOL *This\r | |
1433 | )\r | |
1434 | {\r | |
1435 | EMU_EFI_FILE_PRIVATE *PrivateFile;\r | |
1436 | \r | |
1437 | \r | |
1438 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r | |
1439 | \r | |
1440 | if (PrivateFile->IsDirectoryPath) {\r | |
1441 | return EFI_UNSUPPORTED;\r | |
1442 | }\r | |
1443 | \r | |
1444 | if (PrivateFile->IsOpenedByRead) {\r | |
1445 | return EFI_ACCESS_DENIED;\r | |
1446 | }\r | |
1447 | \r | |
1448 | if (PrivateFile->fd < 0) {\r | |
1449 | return EFI_DEVICE_ERROR;\r | |
1450 | }\r | |
1451 | \r | |
1452 | if (fsync (PrivateFile->fd) != 0) {\r | |
1453 | return ErrnoToEfiStatus ();\r | |
1454 | }\r | |
1455 | \r | |
1456 | return EFI_SUCCESS;\r | |
1457 | }\r | |
1458 | \r | |
1459 | \r | |
1460 | \r | |
1461 | EFI_STATUS\r | |
1462 | PosixFileSystmeThunkOpen (\r | |
1463 | IN EMU_IO_THUNK_PROTOCOL *This\r | |
1464 | )\r | |
1465 | {\r | |
1466 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *Private;\r | |
1467 | UINTN i;\r | |
1468 | \r | |
1469 | if (This->Private != NULL) {\r | |
1470 | return EFI_ALREADY_STARTED;\r | |
1471 | }\r | |
1472 | \r | |
1473 | if (!CompareGuid (This->Protocol, &gEfiSimpleFileSystemProtocolGuid)) {\r | |
1474 | return EFI_UNSUPPORTED;\r | |
1475 | }\r | |
1476 | \r | |
1477 | Private = malloc (sizeof (EMU_SIMPLE_FILE_SYSTEM_PRIVATE));\r | |
1478 | if (Private == NULL) {\r | |
1479 | return EFI_OUT_OF_RESOURCES;\r | |
1480 | }\r | |
1481 | \r | |
1482 | Private->FilePath = malloc (StrLen (This->ConfigString) + 1);\r | |
1483 | if (Private->FilePath == NULL) {\r | |
1484 | free (Private);\r | |
1485 | return EFI_OUT_OF_RESOURCES;\r | |
1486 | }\r | |
1487 | \r | |
1488 | // Convert Unicode to Ascii\r | |
1489 | for (i = 0; This->ConfigString[i] != 0; i++) {\r | |
1490 | Private->FilePath[i] = This->ConfigString[i];\r | |
1491 | }\r | |
1492 | Private->FilePath[i] = 0;\r | |
1493 | \r | |
1494 | \r | |
1495 | Private->VolumeLabel = malloc (StrSize (L"EFI_EMULATED"));\r | |
1496 | if (Private->VolumeLabel == NULL) {\r | |
1497 | free (Private->FilePath);\r | |
1498 | free (Private);\r | |
1499 | return EFI_OUT_OF_RESOURCES;\r | |
1500 | }\r | |
1501 | StrCpy (Private->VolumeLabel, L"EFI_EMULATED");\r | |
1502 | \r | |
1503 | Private->Signature = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE;\r | |
1504 | Private->Thunk = This;\r | |
1505 | CopyMem (&Private->SimpleFileSystem, &gPosixFileSystemProtocol, sizeof (Private->SimpleFileSystem));\r | |
1506 | Private->FileHandlesOpen = FALSE;\r | |
1507 | \r | |
1508 | This->Interface = &Private->SimpleFileSystem;\r | |
1509 | This->Private = Private;\r | |
1510 | return EFI_SUCCESS;\r | |
1511 | }\r | |
1512 | \r | |
1513 | \r | |
1514 | EFI_STATUS\r | |
1515 | PosixFileSystmeThunkClose (\r | |
1516 | IN EMU_IO_THUNK_PROTOCOL *This\r | |
1517 | )\r | |
1518 | {\r | |
1519 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *Private;\r | |
1520 | \r | |
1521 | if (!CompareGuid (This->Protocol, &gEfiSimpleFileSystemProtocolGuid)) {\r | |
1522 | return EFI_UNSUPPORTED;\r | |
1523 | }\r | |
1524 | \r | |
1525 | Private = This->Private;\r | |
1526 | \r | |
1527 | if (Private->FileHandlesOpen) {\r | |
1528 | //\r | |
1529 | // Close only supported if all the EFI_FILE_HANDLEs have been closed.\r | |
1530 | //\r | |
1531 | return EFI_NOT_READY;\r | |
1532 | }\r | |
1533 | \r | |
1534 | if (This->Private != NULL) {\r | |
1535 | if (Private->VolumeLabel != NULL) {\r | |
1536 | free (Private->VolumeLabel);\r | |
1537 | }\r | |
1538 | free (This->Private);\r | |
1539 | This->Private = NULL;\r | |
1540 | }\r | |
1541 | \r | |
1542 | return EFI_SUCCESS;\r | |
1543 | }\r | |
1544 | \r | |
1545 | \r | |
1546 | EMU_IO_THUNK_PROTOCOL gPosixFileSystemThunkIo = {\r | |
1547 | &gEfiSimpleFileSystemProtocolGuid,\r | |
1548 | NULL,\r | |
1549 | NULL,\r | |
1550 | 0,\r | |
1551 | GasketPosixFileSystmeThunkOpen,\r | |
1552 | GasketPosixFileSystmeThunkClose,\r | |
1553 | NULL\r | |
1554 | };\r | |
1555 | \r | |
1556 | \r |