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949f388f | 1 | /*++ @file |
2 | POSIX Pthreads to emulate APs and implement threads | |
3 | ||
4 | Copyright (c) 2011, Apple Inc. All rights reserved. | |
5 | This program and the accompanying materials | |
6 | are licensed and made available under the terms and conditions of the BSD License | |
7 | which accompanies this distribution. The full text of the license may be found at | |
8 | http://opensource.org/licenses/bsd-license.php | |
9 | ||
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | ||
13 | ||
14 | **/ | |
15 | ||
16 | #include "SecMain.h" | |
17 | ||
18 | ||
19 | #define EMU_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE SIGNATURE_32 ('E', 'P', 'f', 's') | |
20 | ||
21 | typedef struct { | |
22 | UINTN Signature; | |
23 | EMU_IO_THUNK_PROTOCOL *Thunk; | |
24 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL SimpleFileSystem; | |
25 | CHAR8 *FilePath; | |
26 | CHAR16 *VolumeLabel; | |
27 | BOOLEAN FileHandlesOpen; | |
28 | } EMU_SIMPLE_FILE_SYSTEM_PRIVATE; | |
29 | ||
30 | #define EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS(a) \ | |
31 | CR (a, \ | |
32 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE, \ | |
33 | SimpleFileSystem, \ | |
34 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE \ | |
35 | ) | |
36 | ||
37 | ||
38 | #define EMU_EFI_FILE_PRIVATE_SIGNATURE SIGNATURE_32 ('E', 'P', 'f', 'i') | |
39 | ||
40 | typedef struct { | |
41 | UINTN Signature; | |
42 | EMU_IO_THUNK_PROTOCOL *Thunk; | |
43 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *SimpleFileSystem; | |
44 | EFI_FILE_PROTOCOL EfiFile; | |
45 | int fd; | |
46 | DIR *Dir; | |
47 | BOOLEAN IsRootDirectory; | |
48 | BOOLEAN IsDirectoryPath; | |
49 | BOOLEAN IsOpenedByRead; | |
50 | char *FileName; | |
51 | struct dirent *Dirent; | |
52 | } EMU_EFI_FILE_PRIVATE; | |
53 | ||
54 | #define EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS(a) \ | |
55 | CR (a, \ | |
56 | EMU_EFI_FILE_PRIVATE, \ | |
57 | EfiFile, \ | |
58 | EMU_EFI_FILE_PRIVATE_SIGNATURE \ | |
59 | ) | |
60 | ||
61 | EFI_STATUS | |
62 | PosixFileGetInfo ( | |
63 | IN EFI_FILE_PROTOCOL *This, | |
64 | IN EFI_GUID *InformationType, | |
65 | IN OUT UINTN *BufferSize, | |
66 | OUT VOID *Buffer | |
67 | ); | |
68 | ||
69 | EFI_STATUS | |
70 | PosixFileSetInfo ( | |
71 | IN EFI_FILE_PROTOCOL *This, | |
72 | IN EFI_GUID *InformationType, | |
73 | IN UINTN BufferSize, | |
74 | IN VOID *Buffer | |
75 | ); | |
76 | ||
77 | ||
78 | EFI_FILE_PROTOCOL gPosixFileProtocol = { | |
79 | EFI_FILE_REVISION, | |
80 | GasketPosixFileOpen, | |
81 | GasketPosixFileCLose, | |
82 | GasketPosixFileDelete, | |
83 | GasketPosixFileRead, | |
84 | GasketPosixFileWrite, | |
85 | GasketPosixFileGetPossition, | |
86 | GasketPosixFileSetPossition, | |
87 | GasketPosixFileGetInfo, | |
88 | GasketPosixFileSetInfo, | |
89 | GasketPosixFileFlush | |
90 | }; | |
91 | ||
92 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL gPosixFileSystemProtocol = { | |
93 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION, | |
94 | GasketPosixOpenVolume, | |
95 | }; | |
96 | ||
97 | ||
98 | /** | |
99 | Open the root directory on a volume. | |
100 | ||
101 | @param This Protocol instance pointer. | |
102 | @param Root Returns an Open file handle for the root directory | |
103 | ||
104 | @retval EFI_SUCCESS The device was opened. | |
105 | @retval EFI_UNSUPPORTED This volume does not support the file system. | |
106 | @retval EFI_NO_MEDIA The device has no media. | |
107 | @retval EFI_DEVICE_ERROR The device reported an error. | |
108 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. | |
109 | @retval EFI_ACCESS_DENIED The service denied access to the file. | |
110 | @retval EFI_OUT_OF_RESOURCES The volume was not opened due to lack of resources. | |
111 | ||
112 | **/ | |
113 | EFI_STATUS | |
114 | PosixOpenVolume ( | |
115 | IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This, | |
116 | OUT EFI_FILE_PROTOCOL **Root | |
117 | ) | |
118 | { | |
119 | EFI_STATUS Status; | |
120 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *Private; | |
121 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
122 | ||
123 | Private = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (This); | |
124 | ||
125 | Status = EFI_OUT_OF_RESOURCES; | |
126 | PrivateFile = malloc (sizeof (EMU_EFI_FILE_PRIVATE)); | |
127 | if (PrivateFile == NULL) { | |
128 | goto Done; | |
129 | } | |
130 | ||
131 | PrivateFile->FileName = malloc (AsciiStrSize (Private->FilePath)); | |
132 | if (PrivateFile->FileName == NULL) { | |
133 | goto Done; | |
134 | } | |
135 | AsciiStrCpy (PrivateFile->FileName, Private->FilePath); | |
136 | ||
137 | PrivateFile->Signature = EMU_EFI_FILE_PRIVATE_SIGNATURE; | |
138 | PrivateFile->Thunk = Private->Thunk; | |
139 | PrivateFile->SimpleFileSystem = This; | |
140 | PrivateFile->IsRootDirectory = TRUE; | |
141 | PrivateFile->IsDirectoryPath = TRUE; | |
142 | PrivateFile->IsOpenedByRead = TRUE; | |
143 | ||
144 | CopyMem (&PrivateFile->EfiFile, &gPosixFileProtocol, sizeof (EFI_FILE_PROTOCOL)); | |
145 | ||
146 | PrivateFile->fd = -1; | |
147 | PrivateFile->Dir = NULL; | |
148 | PrivateFile->Dirent = NULL; | |
149 | ||
150 | *Root = &PrivateFile->EfiFile; | |
151 | ||
152 | PrivateFile->Dir = opendir (PrivateFile->FileName); | |
153 | if (PrivateFile->Dir == NULL) { | |
154 | Status = EFI_ACCESS_DENIED; | |
155 | } else { | |
156 | Status = EFI_SUCCESS; | |
157 | } | |
158 | ||
159 | Done: | |
160 | if (EFI_ERROR (Status)) { | |
161 | if (PrivateFile != NULL) { | |
162 | if (PrivateFile->FileName != NULL) { | |
163 | free (PrivateFile->FileName); | |
164 | } | |
165 | ||
166 | free (PrivateFile); | |
167 | } | |
168 | ||
169 | *Root = NULL; | |
170 | } | |
171 | ||
172 | return Status; | |
173 | } | |
174 | ||
175 | ||
176 | EFI_STATUS | |
177 | ErrnoToEfiStatus () | |
178 | { | |
179 | switch (errno) { | |
180 | case EACCES: | |
181 | return EFI_ACCESS_DENIED; | |
182 | ||
183 | case EDQUOT: | |
184 | case ENOSPC: | |
185 | return EFI_VOLUME_FULL; | |
186 | ||
187 | default: | |
188 | return EFI_DEVICE_ERROR; | |
189 | } | |
190 | } | |
191 | ||
192 | VOID | |
193 | CutPrefix ( | |
194 | IN CHAR8 *Str, | |
195 | IN UINTN Count | |
196 | ) | |
197 | { | |
198 | CHAR8 *Pointer; | |
199 | ||
200 | if (AsciiStrLen (Str) < Count) { | |
201 | ASSERT (0); | |
202 | } | |
203 | ||
204 | for (Pointer = Str; *(Pointer + Count); Pointer++) { | |
205 | *Pointer = *(Pointer + Count); | |
206 | } | |
207 | ||
208 | *Pointer = *(Pointer + Count); | |
209 | } | |
210 | ||
211 | ||
212 | VOID | |
213 | PosixSystemTimeToEfiTime ( | |
214 | IN time_t SystemTime, | |
215 | OUT EFI_TIME *Time | |
216 | ) | |
217 | { | |
218 | struct tm *tm; | |
219 | ||
220 | tm = gmtime (&SystemTime); | |
221 | Time->Year = tm->tm_year; | |
222 | Time->Month = tm->tm_mon + 1; | |
223 | Time->Day = tm->tm_mday; | |
224 | Time->Hour = tm->tm_hour; | |
225 | Time->Minute = tm->tm_min; | |
226 | Time->Second = tm->tm_sec; | |
227 | Time->Nanosecond = 0; | |
228 | ||
229 | Time->TimeZone = timezone; | |
230 | Time->Daylight = (daylight ? EFI_TIME_ADJUST_DAYLIGHT : 0) | (tm->tm_isdst > 0 ? EFI_TIME_IN_DAYLIGHT : 0); | |
231 | } | |
232 | ||
233 | ||
234 | EFI_STATUS | |
235 | UnixSimpleFileSystemFileInfo ( | |
236 | EMU_EFI_FILE_PRIVATE *PrivateFile, | |
237 | IN CHAR8 *FileName, | |
238 | IN OUT UINTN *BufferSize, | |
239 | OUT VOID *Buffer | |
240 | ) | |
241 | { | |
242 | EFI_STATUS Status; | |
243 | UINTN Size; | |
244 | UINTN NameSize; | |
245 | UINTN ResultSize; | |
246 | EFI_FILE_INFO *Info; | |
247 | CHAR8 *RealFileName; | |
248 | CHAR8 *TempPointer; | |
249 | CHAR16 *BufferFileName; | |
250 | struct stat buf; | |
251 | ||
252 | if (FileName != NULL) { | |
253 | RealFileName = FileName; | |
254 | } | |
255 | else if (PrivateFile->IsRootDirectory) { | |
256 | RealFileName = ""; | |
257 | } else { | |
258 | RealFileName = PrivateFile->FileName; | |
259 | } | |
260 | ||
261 | TempPointer = RealFileName; | |
262 | while (*TempPointer) { | |
263 | if (*TempPointer == '/') { | |
264 | RealFileName = TempPointer + 1; | |
265 | } | |
266 | ||
267 | TempPointer++; | |
268 | } | |
269 | ||
270 | Size = SIZE_OF_EFI_FILE_INFO; | |
271 | NameSize = AsciiStrSize (RealFileName) * 2; | |
272 | ResultSize = Size + NameSize; | |
273 | ||
274 | if (*BufferSize < ResultSize) { | |
275 | *BufferSize = ResultSize; | |
276 | return EFI_BUFFER_TOO_SMALL; | |
277 | } | |
278 | if (stat (FileName == NULL ? PrivateFile->FileName : FileName, &buf) < 0) { | |
279 | return EFI_DEVICE_ERROR; | |
280 | } | |
281 | ||
282 | Status = EFI_SUCCESS; | |
283 | ||
284 | Info = Buffer; | |
285 | ZeroMem (Info, ResultSize); | |
286 | ||
287 | Info->Size = ResultSize; | |
288 | Info->FileSize = buf.st_size; | |
289 | Info->PhysicalSize = MultU64x32 (buf.st_blocks, buf.st_blksize); | |
290 | ||
291 | PosixSystemTimeToEfiTime (buf.st_ctime, &Info->CreateTime); | |
292 | PosixSystemTimeToEfiTime (buf.st_atime, &Info->LastAccessTime); | |
293 | PosixSystemTimeToEfiTime (buf.st_mtime, &Info->ModificationTime); | |
294 | ||
295 | if (!(buf.st_mode & S_IWUSR)) { | |
296 | Info->Attribute |= EFI_FILE_READ_ONLY; | |
297 | } | |
298 | ||
299 | if (S_ISDIR(buf.st_mode)) { | |
300 | Info->Attribute |= EFI_FILE_DIRECTORY; | |
301 | } | |
302 | ||
303 | ||
304 | BufferFileName = (CHAR16 *)((CHAR8 *) Buffer + Size); | |
305 | while (*RealFileName) { | |
306 | *BufferFileName++ = *RealFileName++; | |
307 | } | |
308 | *BufferFileName = 0; | |
309 | ||
310 | *BufferSize = ResultSize; | |
311 | return Status; | |
312 | } | |
313 | ||
314 | BOOLEAN | |
315 | IsZero ( | |
316 | IN VOID *Buffer, | |
317 | IN UINTN Length | |
318 | ) | |
319 | { | |
320 | if (Buffer == NULL || Length == 0) { | |
321 | return FALSE; | |
322 | } | |
323 | ||
324 | if (*(UINT8 *) Buffer != 0) { | |
325 | return FALSE; | |
326 | } | |
327 | ||
328 | if (Length > 1) { | |
329 | if (!CompareMem (Buffer, (UINT8 *) Buffer + 1, Length - 1)) { | |
330 | return FALSE; | |
331 | } | |
332 | } | |
333 | ||
334 | return TRUE; | |
335 | } | |
336 | ||
337 | ||
338 | ||
339 | /** | |
340 | Opens a new file relative to the source file's location. | |
341 | ||
342 | @param This The protocol instance pointer. | |
343 | @param NewHandle Returns File Handle for FileName. | |
344 | @param FileName Null terminated string. "\", ".", and ".." are supported. | |
345 | @param OpenMode Open mode for file. | |
346 | @param Attributes Only used for EFI_FILE_MODE_CREATE. | |
347 | ||
348 | @retval EFI_SUCCESS The device was opened. | |
349 | @retval EFI_NOT_FOUND The specified file could not be found on the device. | |
350 | @retval EFI_NO_MEDIA The device has no media. | |
351 | @retval EFI_MEDIA_CHANGED The media has changed. | |
352 | @retval EFI_DEVICE_ERROR The device reported an error. | |
353 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. | |
354 | @retval EFI_ACCESS_DENIED The service denied access to the file. | |
355 | @retval EFI_OUT_OF_RESOURCES The volume was not opened due to lack of resources. | |
356 | @retval EFI_VOLUME_FULL The volume is full. | |
357 | ||
358 | **/ | |
359 | EFI_STATUS | |
360 | PosixFileOpen ( | |
361 | IN EFI_FILE_PROTOCOL *This, | |
362 | OUT EFI_FILE_PROTOCOL **NewHandle, | |
363 | IN CHAR16 *FileName, | |
364 | IN UINT64 OpenMode, | |
365 | IN UINT64 Attributes | |
366 | ) | |
367 | { | |
368 | EFI_FILE_PROTOCOL *Root; | |
369 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
370 | EMU_EFI_FILE_PRIVATE *NewPrivateFile; | |
371 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot; | |
372 | EFI_STATUS Status; | |
373 | CHAR16 *Src; | |
374 | char *Dst; | |
375 | CHAR8 *RealFileName; | |
376 | char *ParseFileName; | |
377 | char *GuardPointer; | |
378 | CHAR8 TempChar; | |
379 | UINTN Count; | |
380 | BOOLEAN TrailingDash; | |
381 | BOOLEAN LoopFinish; | |
382 | UINTN InfoSize; | |
383 | EFI_FILE_INFO *Info; | |
384 | struct stat finfo; | |
385 | int res; | |
386 | ||
387 | ||
388 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
389 | PrivateRoot = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem); | |
390 | NewPrivateFile = NULL; | |
391 | Status = EFI_OUT_OF_RESOURCES; | |
392 | ||
393 | // | |
394 | // BUGBUG: assume an open of root | |
395 | // if current location, return current data | |
396 | // | |
397 | if ((StrCmp (FileName, L"\\") == 0) || | |
398 | (StrCmp (FileName, L".") == 0 && PrivateFile->IsRootDirectory)) { | |
399 | OpenRoot: | |
400 | Status = PosixOpenVolume (PrivateFile->SimpleFileSystem, &Root); | |
401 | NewPrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (Root); | |
402 | goto Done; | |
403 | } | |
404 | ||
405 | TrailingDash = FALSE; | |
406 | if (FileName[StrLen (FileName) - 1] == L'\\') { | |
407 | TrailingDash = TRUE; | |
408 | FileName[StrLen (FileName) - 1] = 0; | |
409 | } | |
410 | ||
411 | // | |
412 | // Attempt to open the file | |
413 | // | |
414 | NewPrivateFile = malloc (sizeof (EMU_EFI_FILE_PRIVATE)); | |
415 | if (NewPrivateFile == NULL) { | |
416 | goto Done; | |
417 | } | |
418 | ||
419 | CopyMem (NewPrivateFile, PrivateFile, sizeof (EMU_EFI_FILE_PRIVATE)); | |
420 | ||
421 | NewPrivateFile->FileName = malloc (AsciiStrSize (PrivateFile->FileName) + 1 + StrLen (FileName) + 1); | |
422 | if (NewPrivateFile->FileName == NULL) { | |
423 | goto Done; | |
424 | } | |
425 | ||
426 | if (*FileName == L'\\') { | |
427 | AsciiStrCpy (NewPrivateFile->FileName, PrivateRoot->FilePath); | |
428 | // Skip first '\'. | |
429 | Src = FileName + 1; | |
430 | } else { | |
431 | AsciiStrCpy (NewPrivateFile->FileName, PrivateFile->FileName); | |
432 | Src = FileName; | |
433 | } | |
434 | Dst = NewPrivateFile->FileName + AsciiStrLen (NewPrivateFile->FileName); | |
435 | GuardPointer = NewPrivateFile->FileName + AsciiStrLen (PrivateRoot->FilePath); | |
436 | *Dst++ = '/'; | |
437 | // Convert unicode to ascii and '\' to '/' | |
438 | while (*Src) { | |
439 | if (*Src == '\\') { | |
440 | *Dst++ = '/'; | |
441 | } else { | |
442 | *Dst++ = *Src; | |
443 | } | |
444 | Src++; | |
445 | } | |
446 | *Dst = 0; | |
447 | ||
448 | ||
449 | // | |
450 | // Get rid of . and .., except leading . or .. | |
451 | // | |
452 | ||
453 | // | |
454 | // GuardPointer protect simplefilesystem root path not be destroyed | |
455 | // | |
456 | ||
457 | LoopFinish = FALSE; | |
458 | while (!LoopFinish) { | |
459 | LoopFinish = TRUE; | |
460 | ||
461 | for (ParseFileName = GuardPointer; *ParseFileName; ParseFileName++) { | |
462 | if (*ParseFileName == '.' && | |
463 | (*(ParseFileName + 1) == 0 || *(ParseFileName + 1) == '/') && | |
464 | *(ParseFileName - 1) == '/' | |
465 | ) { | |
466 | ||
467 | // | |
468 | // cut /. | |
469 | // | |
470 | CutPrefix (ParseFileName - 1, 2); | |
471 | LoopFinish = FALSE; | |
472 | break; | |
473 | } | |
474 | ||
475 | if (*ParseFileName == '.' && | |
476 | *(ParseFileName + 1) == '.' && | |
477 | (*(ParseFileName + 2) == 0 || *(ParseFileName + 2) == '/') && | |
478 | *(ParseFileName - 1) == '/' | |
479 | ) { | |
480 | ||
481 | ParseFileName--; | |
482 | Count = 3; | |
483 | ||
484 | while (ParseFileName != GuardPointer) { | |
485 | ParseFileName--; | |
486 | Count++; | |
487 | if (*ParseFileName == '/') { | |
488 | break; | |
489 | } | |
490 | } | |
491 | ||
492 | // | |
493 | // cut /.. and its left directory | |
494 | // | |
495 | CutPrefix (ParseFileName, Count); | |
496 | LoopFinish = FALSE; | |
497 | break; | |
498 | } | |
499 | } | |
500 | } | |
501 | ||
502 | if (AsciiStrCmp (NewPrivateFile->FileName, PrivateRoot->FilePath) == 0) { | |
503 | NewPrivateFile->IsRootDirectory = TRUE; | |
504 | free (NewPrivateFile->FileName); | |
505 | free (NewPrivateFile); | |
506 | goto OpenRoot; | |
507 | } | |
508 | ||
509 | RealFileName = NewPrivateFile->FileName + AsciiStrLen(NewPrivateFile->FileName) - 1; | |
510 | while (RealFileName > NewPrivateFile->FileName && *RealFileName != '/') { | |
511 | RealFileName--; | |
512 | } | |
513 | ||
514 | TempChar = *(RealFileName - 1); | |
515 | *(RealFileName - 1) = 0; | |
516 | *(RealFileName - 1) = TempChar; | |
517 | ||
518 | ||
519 | // | |
520 | // Test whether file or directory | |
521 | // | |
522 | NewPrivateFile->IsRootDirectory = FALSE; | |
523 | NewPrivateFile->fd = -1; | |
524 | NewPrivateFile->Dir = NULL; | |
525 | if (OpenMode & EFI_FILE_MODE_CREATE) { | |
526 | if (Attributes & EFI_FILE_DIRECTORY) { | |
527 | NewPrivateFile->IsDirectoryPath = TRUE; | |
528 | } else { | |
529 | NewPrivateFile->IsDirectoryPath = FALSE; | |
530 | } | |
531 | } else { | |
532 | res = stat (NewPrivateFile->FileName, &finfo); | |
533 | if (res == 0 && S_ISDIR(finfo.st_mode)) { | |
534 | NewPrivateFile->IsDirectoryPath = TRUE; | |
535 | } else { | |
536 | NewPrivateFile->IsDirectoryPath = FALSE; | |
537 | } | |
538 | } | |
539 | ||
540 | if (OpenMode & EFI_FILE_MODE_WRITE) { | |
541 | NewPrivateFile->IsOpenedByRead = FALSE; | |
542 | } else { | |
543 | NewPrivateFile->IsOpenedByRead = TRUE; | |
544 | } | |
545 | ||
546 | Status = EFI_SUCCESS; | |
547 | ||
548 | // | |
549 | // deal with directory | |
550 | // | |
551 | if (NewPrivateFile->IsDirectoryPath) { | |
552 | if ((OpenMode & EFI_FILE_MODE_CREATE)) { | |
553 | // | |
554 | // Create a directory | |
555 | // | |
556 | if (mkdir (NewPrivateFile->FileName, 0777) != 0) { | |
557 | if (errno != EEXIST) { | |
558 | //free (TempFileName); | |
559 | Status = EFI_ACCESS_DENIED; | |
560 | goto Done; | |
561 | } | |
562 | } | |
563 | } | |
564 | ||
565 | NewPrivateFile->Dir = opendir (NewPrivateFile->FileName); | |
566 | if (NewPrivateFile->Dir == NULL) { | |
567 | if (errno == EACCES) { | |
568 | Status = EFI_ACCESS_DENIED; | |
569 | } else { | |
570 | Status = EFI_NOT_FOUND; | |
571 | } | |
572 | ||
573 | goto Done; | |
574 | } | |
575 | ||
576 | } else { | |
577 | // | |
578 | // deal with file | |
579 | // | |
580 | NewPrivateFile->fd = open ( | |
581 | NewPrivateFile->FileName, | |
582 | ((OpenMode & EFI_FILE_MODE_CREATE) ? O_CREAT : 0) | (NewPrivateFile->IsOpenedByRead ? O_RDONLY : O_RDWR), | |
583 | 0666 | |
584 | ); | |
585 | if (NewPrivateFile->fd < 0) { | |
586 | if (errno == ENOENT) { | |
587 | Status = EFI_NOT_FOUND; | |
588 | } else { | |
589 | Status = EFI_ACCESS_DENIED; | |
590 | } | |
591 | } | |
592 | } | |
593 | ||
594 | if ((OpenMode & EFI_FILE_MODE_CREATE) && Status == EFI_SUCCESS) { | |
595 | // | |
596 | // Set the attribute | |
597 | // | |
598 | InfoSize = 0; | |
599 | Info = NULL; | |
600 | Status = PosixFileGetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, &InfoSize, Info); | |
601 | if (Status != EFI_BUFFER_TOO_SMALL) { | |
602 | Status = EFI_DEVICE_ERROR; | |
603 | goto Done; | |
604 | } | |
605 | ||
606 | Info = malloc (InfoSize); | |
607 | if (Info == NULL) { | |
608 | goto Done; | |
609 | } | |
610 | ||
611 | Status = PosixFileGetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, &InfoSize, Info); | |
612 | if (EFI_ERROR (Status)) { | |
613 | goto Done; | |
614 | } | |
615 | ||
616 | Info->Attribute = Attributes; | |
617 | PosixFileSetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, InfoSize, Info); | |
618 | ||
619 | free (Info); | |
620 | } | |
621 | ||
622 | Done: ; | |
623 | if (TrailingDash) { | |
624 | FileName[StrLen (FileName) + 1] = 0; | |
625 | FileName[StrLen (FileName)] = L'\\'; | |
626 | } | |
627 | ||
628 | if (EFI_ERROR (Status)) { | |
629 | if (NewPrivateFile) { | |
630 | if (NewPrivateFile->FileName) { | |
631 | free (NewPrivateFile->FileName); | |
632 | } | |
633 | ||
634 | free (NewPrivateFile); | |
635 | } | |
636 | } else { | |
637 | *NewHandle = &NewPrivateFile->EfiFile; | |
638 | } | |
639 | ||
640 | return Status; | |
641 | } | |
642 | ||
643 | ||
644 | ||
645 | /** | |
646 | Close the file handle | |
647 | ||
648 | @param This Protocol instance pointer. | |
649 | ||
650 | @retval EFI_SUCCESS The device was opened. | |
651 | ||
652 | **/ | |
653 | EFI_STATUS | |
654 | PosixFileCLose ( | |
655 | IN EFI_FILE_PROTOCOL *This | |
656 | ) | |
657 | { | |
658 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
659 | ||
660 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
661 | ||
662 | if (PrivateFile->fd >= 0) { | |
663 | close (PrivateFile->fd); | |
664 | } | |
665 | if (PrivateFile->Dir != NULL) { | |
666 | closedir (PrivateFile->Dir); | |
667 | } | |
668 | ||
669 | PrivateFile->fd = -1; | |
670 | PrivateFile->Dir = NULL; | |
671 | ||
672 | if (PrivateFile->FileName) { | |
673 | free (PrivateFile->FileName); | |
674 | } | |
675 | ||
676 | free (PrivateFile); | |
677 | ||
678 | return EFI_SUCCESS; | |
679 | } | |
680 | ||
681 | ||
682 | /** | |
683 | Close and delete the file handle. | |
684 | ||
685 | @param This Protocol instance pointer. | |
686 | ||
687 | @retval EFI_SUCCESS The device was opened. | |
688 | @retval EFI_WARN_DELETE_FAILURE The handle was closed but the file was not deleted. | |
689 | ||
690 | **/ | |
691 | EFI_STATUS | |
692 | PosixFileDelete ( | |
693 | IN EFI_FILE_PROTOCOL *This | |
694 | ) | |
695 | { | |
696 | EFI_STATUS Status; | |
697 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
698 | ||
699 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
700 | Status = EFI_WARN_DELETE_FAILURE; | |
701 | ||
702 | if (PrivateFile->IsDirectoryPath) { | |
703 | if (PrivateFile->Dir != NULL) { | |
704 | closedir (PrivateFile->Dir); | |
705 | PrivateFile->Dir = NULL; | |
706 | } | |
707 | ||
708 | if (rmdir (PrivateFile->FileName) == 0) { | |
709 | Status = EFI_SUCCESS; | |
710 | } | |
711 | } else { | |
712 | close (PrivateFile->fd); | |
713 | PrivateFile->fd = -1; | |
714 | ||
715 | if (!PrivateFile->IsOpenedByRead) { | |
716 | if (!unlink (PrivateFile->FileName)) { | |
717 | Status = EFI_SUCCESS; | |
718 | } | |
719 | } | |
720 | } | |
721 | ||
722 | free (PrivateFile->FileName); | |
723 | free (PrivateFile); | |
724 | ||
725 | return Status; | |
726 | } | |
727 | ||
728 | ||
729 | /** | |
730 | Read data from the file. | |
731 | ||
732 | @param This Protocol instance pointer. | |
733 | @param BufferSize On input size of buffer, on output amount of data in buffer. | |
734 | @param Buffer The buffer in which data is read. | |
735 | ||
736 | @retval EFI_SUCCESS Data was read. | |
737 | @retval EFI_NO_MEDIA The device has no media. | |
738 | @retval EFI_DEVICE_ERROR The device reported an error. | |
739 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. | |
740 | @retval EFI_BUFFER_TO_SMALL BufferSize is too small. BufferSize contains required size. | |
741 | ||
742 | **/ | |
743 | EFI_STATUS | |
744 | PosixFileRead ( | |
745 | IN EFI_FILE_PROTOCOL *This, | |
746 | IN OUT UINTN *BufferSize, | |
747 | OUT VOID *Buffer | |
748 | ) | |
749 | { | |
750 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
751 | EFI_STATUS Status; | |
752 | int Res; | |
753 | UINTN Size; | |
754 | UINTN NameSize; | |
755 | UINTN ResultSize; | |
756 | CHAR8 *FullFileName; | |
757 | ||
758 | ||
759 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
760 | ||
761 | if (!PrivateFile->IsDirectoryPath) { | |
762 | if (PrivateFile->fd < 0) { | |
763 | Status = EFI_DEVICE_ERROR; | |
764 | goto Done; | |
765 | } | |
766 | ||
767 | Res = read (PrivateFile->fd, Buffer, *BufferSize); | |
768 | if (Res < 0) { | |
769 | Status = EFI_DEVICE_ERROR; | |
770 | goto Done; | |
771 | } | |
772 | *BufferSize = Res; | |
773 | Status = EFI_SUCCESS; | |
774 | goto Done; | |
775 | } | |
776 | ||
777 | // | |
778 | // Read on a directory. | |
779 | // | |
780 | if (PrivateFile->Dir == NULL) { | |
781 | Status = EFI_DEVICE_ERROR; | |
782 | goto Done; | |
783 | } | |
784 | ||
785 | if (PrivateFile->Dirent == NULL) { | |
786 | PrivateFile->Dirent = readdir (PrivateFile->Dir); | |
787 | if (PrivateFile->Dirent == NULL) { | |
788 | *BufferSize = 0; | |
789 | Status = EFI_SUCCESS; | |
790 | goto Done; | |
791 | } | |
792 | } | |
793 | ||
794 | Size = SIZE_OF_EFI_FILE_INFO; | |
795 | NameSize = AsciiStrLen (PrivateFile->Dirent->d_name) + 1; | |
796 | ResultSize = Size + 2 * NameSize; | |
797 | ||
798 | if (*BufferSize < ResultSize) { | |
799 | *BufferSize = ResultSize; | |
800 | Status = EFI_BUFFER_TOO_SMALL; | |
801 | goto Done; | |
802 | } | |
803 | Status = EFI_SUCCESS; | |
804 | ||
805 | *BufferSize = ResultSize; | |
806 | ||
807 | FullFileName = malloc (AsciiStrLen(PrivateFile->FileName) + 1 + NameSize); | |
808 | if (FullFileName == NULL) { | |
809 | Status = EFI_OUT_OF_RESOURCES; | |
810 | goto Done; | |
811 | } | |
812 | ||
813 | AsciiStrCpy (FullFileName, PrivateFile->FileName); | |
814 | AsciiStrCat (FullFileName, "/"); | |
815 | AsciiStrCat (FullFileName, PrivateFile->Dirent->d_name); | |
816 | Status = UnixSimpleFileSystemFileInfo ( | |
817 | PrivateFile, | |
818 | FullFileName, | |
819 | BufferSize, | |
820 | Buffer | |
821 | ); | |
822 | free (FullFileName); | |
823 | ||
824 | PrivateFile->Dirent = NULL; | |
825 | ||
826 | Done: | |
827 | return Status; | |
828 | } | |
829 | ||
830 | ||
831 | ||
832 | /** | |
833 | Write data to a file. | |
834 | ||
835 | @param This Protocol instance pointer. | |
836 | @param BufferSize On input size of buffer, on output amount of data in buffer. | |
837 | @param Buffer The buffer in which data to write. | |
838 | ||
839 | @retval EFI_SUCCESS Data was written. | |
840 | @retval EFI_UNSUPPORTED Writes to Open directory are not supported. | |
841 | @retval EFI_NO_MEDIA The device has no media. | |
842 | @retval EFI_DEVICE_ERROR The device reported an error. | |
843 | @retval EFI_DEVICE_ERROR An attempt was made to write to a deleted file. | |
844 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. | |
845 | @retval EFI_WRITE_PROTECTED The device is write protected. | |
846 | @retval EFI_ACCESS_DENIED The file was open for read only. | |
847 | @retval EFI_VOLUME_FULL The volume is full. | |
848 | ||
849 | **/ | |
850 | EFI_STATUS | |
851 | PosixFileWrite ( | |
852 | IN EFI_FILE_PROTOCOL *This, | |
853 | IN OUT UINTN *BufferSize, | |
854 | IN VOID *Buffer | |
855 | ) | |
856 | { | |
857 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
858 | int Res; | |
859 | ||
860 | ||
861 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
862 | ||
863 | if (PrivateFile->fd < 0) { | |
864 | return EFI_DEVICE_ERROR; | |
865 | } | |
866 | ||
867 | if (PrivateFile->IsDirectoryPath) { | |
868 | return EFI_UNSUPPORTED; | |
869 | } | |
870 | ||
871 | if (PrivateFile->IsOpenedByRead) { | |
872 | return EFI_ACCESS_DENIED; | |
873 | } | |
874 | ||
875 | Res = write (PrivateFile->fd, Buffer, *BufferSize); | |
876 | if (Res == (UINTN)-1) { | |
877 | return ErrnoToEfiStatus (); | |
878 | } | |
879 | ||
880 | *BufferSize = Res; | |
881 | return EFI_SUCCESS; | |
882 | } | |
883 | ||
884 | ||
885 | ||
886 | /** | |
887 | Set a files current position | |
888 | ||
889 | @param This Protocol instance pointer. | |
890 | @param Position Byte position from the start of the file. | |
891 | ||
892 | @retval EFI_SUCCESS Data was written. | |
893 | @retval EFI_UNSUPPORTED Seek request for non-zero is not valid on open. | |
894 | ||
895 | **/ | |
896 | EFI_STATUS | |
897 | PosixFileSetPossition ( | |
898 | IN EFI_FILE_PROTOCOL *This, | |
899 | IN UINT64 Position | |
900 | ) | |
901 | { | |
902 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
903 | off_t Pos; | |
904 | ||
905 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
906 | ||
907 | if (PrivateFile->IsDirectoryPath) { | |
908 | if (Position != 0) { | |
909 | return EFI_UNSUPPORTED; | |
910 | } | |
911 | ||
912 | if (PrivateFile->Dir == NULL) { | |
913 | return EFI_DEVICE_ERROR; | |
914 | } | |
915 | rewinddir (PrivateFile->Dir); | |
916 | return EFI_SUCCESS; | |
917 | } else { | |
918 | if (Position == (UINT64) -1) { | |
919 | Pos = lseek (PrivateFile->fd, 0, SEEK_END); | |
920 | } else { | |
921 | Pos = lseek (PrivateFile->fd, Position, SEEK_SET); | |
922 | } | |
923 | if (Pos == (off_t)-1) { | |
924 | return ErrnoToEfiStatus (); | |
925 | } | |
926 | return EFI_SUCCESS; | |
927 | } | |
928 | } | |
929 | ||
930 | ||
931 | ||
932 | /** | |
933 | Get a file's current position | |
934 | ||
935 | @param This Protocol instance pointer. | |
936 | @param Position Byte position from the start of the file. | |
937 | ||
938 | @retval EFI_SUCCESS Data was written. | |
939 | @retval EFI_UNSUPPORTED Seek request for non-zero is not valid on open.. | |
940 | ||
941 | **/ | |
942 | EFI_STATUS | |
943 | PosixFileGetPossition ( | |
944 | IN EFI_FILE_PROTOCOL *This, | |
945 | OUT UINT64 *Position | |
946 | ) | |
947 | { | |
948 | EFI_STATUS Status; | |
949 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
950 | ||
951 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
952 | ||
953 | if (PrivateFile->IsDirectoryPath) { | |
954 | Status = EFI_UNSUPPORTED; | |
955 | } else { | |
956 | *Position = (UINT64)lseek (PrivateFile->fd, 0, SEEK_CUR); | |
957 | Status = (*Position == (UINT64) -1) ? ErrnoToEfiStatus () : EFI_SUCCESS; | |
958 | } | |
959 | ||
960 | return Status; | |
961 | } | |
962 | ||
963 | ||
964 | /** | |
965 | Get information about a file. | |
966 | ||
967 | @param This Protocol instance pointer. | |
968 | @param InformationType Type of information to return in Buffer. | |
969 | @param BufferSize On input size of buffer, on output amount of data in buffer. | |
970 | @param Buffer The buffer to return data. | |
971 | ||
972 | @retval EFI_SUCCESS Data was returned. | |
973 | @retval EFI_UNSUPPORTED InformationType is not supported. | |
974 | @retval EFI_NO_MEDIA The device has no media. | |
975 | @retval EFI_DEVICE_ERROR The device reported an error. | |
976 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. | |
977 | @retval EFI_WRITE_PROTECTED The device is write protected. | |
978 | @retval EFI_ACCESS_DENIED The file was open for read only. | |
979 | @retval EFI_BUFFER_TOO_SMALL Buffer was too small; required size returned in BufferSize. | |
980 | ||
981 | **/ | |
982 | EFI_STATUS | |
983 | PosixFileGetInfo ( | |
984 | IN EFI_FILE_PROTOCOL *This, | |
985 | IN EFI_GUID *InformationType, | |
986 | IN OUT UINTN *BufferSize, | |
987 | OUT VOID *Buffer | |
988 | ) | |
989 | { | |
990 | EFI_STATUS Status; | |
991 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
992 | EFI_FILE_SYSTEM_INFO *FileSystemInfoBuffer; | |
993 | int UnixStatus; | |
994 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot; | |
995 | struct statfs buf; | |
996 | ||
997 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
998 | PrivateRoot = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem); | |
999 | ||
1000 | Status = EFI_SUCCESS; | |
1001 | if (CompareGuid (InformationType, &gEfiFileInfoGuid)) { | |
1002 | Status = UnixSimpleFileSystemFileInfo (PrivateFile, NULL, BufferSize, Buffer); | |
1003 | } else if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) { | |
1004 | if (*BufferSize < SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel)) { | |
1005 | *BufferSize = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel); | |
1006 | return EFI_BUFFER_TOO_SMALL; | |
1007 | } | |
1008 | ||
1009 | UnixStatus = statfs (PrivateFile->FileName, &buf); | |
1010 | if (UnixStatus < 0) { | |
1011 | return EFI_DEVICE_ERROR; | |
1012 | } | |
1013 | ||
1014 | FileSystemInfoBuffer = (EFI_FILE_SYSTEM_INFO *) Buffer; | |
1015 | FileSystemInfoBuffer->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel); | |
1016 | FileSystemInfoBuffer->ReadOnly = FALSE; | |
1017 | ||
1018 | // | |
1019 | // Succeeded | |
1020 | // | |
1021 | FileSystemInfoBuffer->VolumeSize = MultU64x32 (buf.f_blocks, buf.f_bsize); | |
1022 | FileSystemInfoBuffer->FreeSpace = MultU64x32 (buf.f_bavail, buf.f_bsize); | |
1023 | FileSystemInfoBuffer->BlockSize = buf.f_bsize; | |
1024 | ||
1025 | ||
1026 | StrCpy ((CHAR16 *) FileSystemInfoBuffer->VolumeLabel, PrivateRoot->VolumeLabel); | |
1027 | *BufferSize = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel); | |
1028 | ||
1029 | } else if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) { | |
1030 | if (*BufferSize < StrSize (PrivateRoot->VolumeLabel)) { | |
1031 | *BufferSize = StrSize (PrivateRoot->VolumeLabel); | |
1032 | return EFI_BUFFER_TOO_SMALL; | |
1033 | } | |
1034 | ||
1035 | StrCpy ((CHAR16 *) Buffer, PrivateRoot->VolumeLabel); | |
1036 | *BufferSize = StrSize (PrivateRoot->VolumeLabel); | |
1037 | ||
1038 | } | |
1039 | ||
1040 | return Status; | |
1041 | } | |
1042 | ||
1043 | ||
1044 | /** | |
1045 | Set information about a file | |
1046 | ||
1047 | @param File Protocol instance pointer. | |
1048 | @param InformationType Type of information in Buffer. | |
1049 | @param BufferSize Size of buffer. | |
1050 | @param Buffer The data to write. | |
1051 | ||
1052 | @retval EFI_SUCCESS Data was returned. | |
1053 | @retval EFI_UNSUPPORTED InformationType is not supported. | |
1054 | @retval EFI_NO_MEDIA The device has no media. | |
1055 | @retval EFI_DEVICE_ERROR The device reported an error. | |
1056 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. | |
1057 | @retval EFI_WRITE_PROTECTED The device is write protected. | |
1058 | @retval EFI_ACCESS_DENIED The file was open for read only. | |
1059 | ||
1060 | **/ | |
1061 | EFI_STATUS | |
1062 | PosixFileSetInfo ( | |
1063 | IN EFI_FILE_PROTOCOL *This, | |
1064 | IN EFI_GUID *InformationType, | |
1065 | IN UINTN BufferSize, | |
1066 | IN VOID *Buffer | |
1067 | ) | |
1068 | { | |
1069 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot; | |
1070 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
1071 | EFI_FILE_INFO *OldFileInfo; | |
1072 | EFI_FILE_INFO *NewFileInfo; | |
1073 | EFI_STATUS Status; | |
1074 | UINTN OldInfoSize; | |
1075 | mode_t NewAttr; | |
1076 | struct stat OldAttr; | |
1077 | CHAR8 *OldFileName; | |
1078 | CHAR8 *NewFileName; | |
1079 | CHAR8 *CharPointer; | |
1080 | BOOLEAN AttrChangeFlag; | |
1081 | BOOLEAN NameChangeFlag; | |
1082 | BOOLEAN SizeChangeFlag; | |
1083 | BOOLEAN TimeChangeFlag; | |
1084 | struct tm NewLastAccessSystemTime; | |
1085 | struct tm NewLastWriteSystemTime; | |
1086 | EFI_FILE_SYSTEM_INFO *NewFileSystemInfo; | |
1087 | CHAR8 *AsciiFilePtr; | |
1088 | CHAR16 *UnicodeFilePtr; | |
1089 | int UnixStatus; | |
1090 | struct utimbuf Utime; | |
1091 | ||
1092 | ||
1093 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
1094 | PrivateRoot = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem); | |
1095 | errno = 0; | |
1096 | Status = EFI_UNSUPPORTED; | |
1097 | OldFileInfo = NewFileInfo = NULL; | |
1098 | OldFileName = NewFileName = NULL; | |
1099 | AttrChangeFlag = NameChangeFlag = SizeChangeFlag = TimeChangeFlag = FALSE; | |
1100 | ||
1101 | // | |
1102 | // Set file system information. | |
1103 | // | |
1104 | if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) { | |
1105 | if (BufferSize < (SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel))) { | |
1106 | Status = EFI_BAD_BUFFER_SIZE; | |
1107 | goto Done; | |
1108 | } | |
1109 | ||
1110 | NewFileSystemInfo = (EFI_FILE_SYSTEM_INFO *) Buffer; | |
1111 | ||
1112 | free (PrivateRoot->VolumeLabel); | |
1113 | ||
1114 | PrivateRoot->VolumeLabel = malloc (StrSize (NewFileSystemInfo->VolumeLabel)); | |
1115 | if (PrivateRoot->VolumeLabel == NULL) { | |
1116 | goto Done; | |
1117 | } | |
1118 | ||
1119 | StrCpy (PrivateRoot->VolumeLabel, NewFileSystemInfo->VolumeLabel); | |
1120 | ||
1121 | Status = EFI_SUCCESS; | |
1122 | goto Done; | |
1123 | } | |
1124 | ||
1125 | // | |
1126 | // Set volume label information. | |
1127 | // | |
1128 | if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) { | |
1129 | if (BufferSize < StrSize (PrivateRoot->VolumeLabel)) { | |
1130 | Status = EFI_BAD_BUFFER_SIZE; | |
1131 | goto Done; | |
1132 | } | |
1133 | ||
1134 | StrCpy (PrivateRoot->VolumeLabel, (CHAR16 *) Buffer); | |
1135 | ||
1136 | Status = EFI_SUCCESS; | |
1137 | goto Done; | |
1138 | } | |
1139 | ||
1140 | if (!CompareGuid (InformationType, &gEfiFileInfoGuid)) { | |
1141 | Status = EFI_UNSUPPORTED; | |
1142 | goto Done; | |
1143 | } | |
1144 | ||
1145 | if (BufferSize < SIZE_OF_EFI_FILE_INFO) { | |
1146 | Status = EFI_BAD_BUFFER_SIZE; | |
1147 | goto Done; | |
1148 | } | |
1149 | ||
1150 | // | |
1151 | // Set file/directory information. | |
1152 | // | |
1153 | ||
1154 | // | |
1155 | // Check for invalid set file information parameters. | |
1156 | // | |
1157 | NewFileInfo = (EFI_FILE_INFO *) Buffer; | |
1158 | if (NewFileInfo->Size <= sizeof (EFI_FILE_INFO) || | |
1159 | (NewFileInfo->Attribute &~(EFI_FILE_VALID_ATTR)) || | |
1160 | (sizeof (UINTN) == 4 && NewFileInfo->Size > 0xFFFFFFFF) | |
1161 | ) { | |
1162 | Status = EFI_INVALID_PARAMETER; | |
1163 | goto Done; | |
1164 | } | |
1165 | ||
1166 | // | |
1167 | // Get current file information so we can determine what kind | |
1168 | // of change request this is. | |
1169 | // | |
1170 | OldInfoSize = 0; | |
1171 | Status = UnixSimpleFileSystemFileInfo (PrivateFile, NULL, &OldInfoSize, NULL); | |
1172 | if (Status != EFI_BUFFER_TOO_SMALL) { | |
1173 | Status = EFI_DEVICE_ERROR; | |
1174 | goto Done; | |
1175 | } | |
1176 | ||
1177 | OldFileInfo = malloc (OldInfoSize); | |
1178 | if (OldFileInfo == NULL) { | |
1179 | goto Done; | |
1180 | } | |
1181 | ||
1182 | Status = UnixSimpleFileSystemFileInfo (PrivateFile, NULL, &OldInfoSize, OldFileInfo); | |
1183 | if (EFI_ERROR (Status)) { | |
1184 | goto Done; | |
1185 | } | |
1186 | ||
1187 | OldFileName = malloc (AsciiStrSize (PrivateFile->FileName)); | |
1188 | if (OldFileInfo == NULL) { | |
1189 | goto Done; | |
1190 | } | |
1191 | ||
1192 | AsciiStrCpy (OldFileName, PrivateFile->FileName); | |
1193 | ||
1194 | // | |
1195 | // Make full pathname from new filename and rootpath. | |
1196 | // | |
1197 | if (NewFileInfo->FileName[0] == '\\') { | |
1198 | NewFileName = malloc (AsciiStrLen (PrivateRoot->FilePath) + 1 + StrLen (NewFileInfo->FileName) + 1); | |
1199 | if (NewFileName == NULL) { | |
1200 | goto Done; | |
1201 | } | |
1202 | ||
1203 | AsciiStrCpy (NewFileName, PrivateRoot->FilePath); | |
1204 | AsciiFilePtr = NewFileName + AsciiStrLen(NewFileName); | |
1205 | UnicodeFilePtr = NewFileInfo->FileName + 1; | |
1206 | *AsciiFilePtr++ ='/'; | |
1207 | } else { | |
1208 | NewFileName = malloc (AsciiStrLen (PrivateFile->FileName) + 2 + StrLen (NewFileInfo->FileName) + 1); | |
1209 | if (NewFileName == NULL) { | |
1210 | goto Done; | |
1211 | } | |
1212 | ||
1213 | AsciiStrCpy (NewFileName, PrivateRoot->FilePath); | |
1214 | AsciiFilePtr = NewFileName + AsciiStrLen(NewFileName); | |
1215 | if ((AsciiFilePtr[-1] != '/') && (NewFileInfo->FileName[0] != '/')) { | |
1216 | // make sure there is a / between Root FilePath and NewFileInfo Filename | |
1217 | AsciiFilePtr[0] = '/'; | |
1218 | AsciiFilePtr[1] = '\0'; | |
1219 | AsciiFilePtr++; | |
1220 | } | |
1221 | UnicodeFilePtr = NewFileInfo->FileName; | |
1222 | } | |
1223 | // Convert to ascii. | |
1224 | while (*UnicodeFilePtr) { | |
1225 | *AsciiFilePtr++ = *UnicodeFilePtr++; | |
1226 | } | |
1227 | *AsciiFilePtr = 0; | |
1228 | ||
1229 | // | |
1230 | // Is there an attribute change request? | |
1231 | // | |
1232 | if (NewFileInfo->Attribute != OldFileInfo->Attribute) { | |
1233 | if ((NewFileInfo->Attribute & EFI_FILE_DIRECTORY) != (OldFileInfo->Attribute & EFI_FILE_DIRECTORY)) { | |
1234 | Status = EFI_INVALID_PARAMETER; | |
1235 | goto Done; | |
1236 | } | |
1237 | ||
1238 | AttrChangeFlag = TRUE; | |
1239 | } | |
1240 | ||
1241 | // | |
1242 | // Is there a name change request? | |
1243 | // bugbug: - Should really use EFI_UNICODE_COLLATION_PROTOCOL | |
1244 | // | |
1245 | if (StrCmp (NewFileInfo->FileName, OldFileInfo->FileName)) { | |
1246 | NameChangeFlag = TRUE; | |
1247 | } | |
1248 | ||
1249 | // | |
1250 | // Is there a size change request? | |
1251 | // | |
1252 | if (NewFileInfo->FileSize != OldFileInfo->FileSize) { | |
1253 | SizeChangeFlag = TRUE; | |
1254 | } | |
1255 | ||
1256 | // | |
1257 | // Is there a time stamp change request? | |
1258 | // | |
1259 | if (!IsZero (&NewFileInfo->CreateTime, sizeof (EFI_TIME)) && | |
1260 | CompareMem (&NewFileInfo->CreateTime, &OldFileInfo->CreateTime, sizeof (EFI_TIME)) | |
1261 | ) { | |
1262 | TimeChangeFlag = TRUE; | |
1263 | } else if (!IsZero (&NewFileInfo->LastAccessTime, sizeof (EFI_TIME)) && | |
1264 | CompareMem (&NewFileInfo->LastAccessTime, &OldFileInfo->LastAccessTime, sizeof (EFI_TIME)) | |
1265 | ) { | |
1266 | TimeChangeFlag = TRUE; | |
1267 | } else if (!IsZero (&NewFileInfo->ModificationTime, sizeof (EFI_TIME)) && | |
1268 | CompareMem (&NewFileInfo->ModificationTime, &OldFileInfo->ModificationTime, sizeof (EFI_TIME)) | |
1269 | ) { | |
1270 | TimeChangeFlag = TRUE; | |
1271 | } | |
1272 | ||
1273 | // | |
1274 | // All done if there are no change requests being made. | |
1275 | // | |
1276 | if (!(AttrChangeFlag || NameChangeFlag || SizeChangeFlag || TimeChangeFlag)) { | |
1277 | Status = EFI_SUCCESS; | |
1278 | goto Done; | |
1279 | } | |
1280 | ||
1281 | // | |
1282 | // Set file or directory information. | |
1283 | // | |
1284 | if (stat (OldFileName, &OldAttr) != 0) { | |
1285 | Status = ErrnoToEfiStatus (); | |
1286 | goto Done; | |
1287 | } | |
1288 | ||
1289 | // | |
1290 | // Name change. | |
1291 | // | |
1292 | if (NameChangeFlag) { | |
1293 | // | |
1294 | // Close the handles first | |
1295 | // | |
1296 | if (PrivateFile->IsOpenedByRead) { | |
1297 | Status = EFI_ACCESS_DENIED; | |
1298 | goto Done; | |
1299 | } | |
1300 | ||
1301 | for (CharPointer = NewFileName; *CharPointer != 0 && *CharPointer != L'/'; CharPointer++) { | |
1302 | } | |
1303 | ||
1304 | if (*CharPointer != 0) { | |
1305 | Status = EFI_ACCESS_DENIED; | |
1306 | goto Done; | |
1307 | } | |
1308 | ||
1309 | UnixStatus = rename (OldFileName, NewFileName); | |
1310 | if (UnixStatus == 0) { | |
1311 | // | |
1312 | // modify file name | |
1313 | // | |
1314 | free (PrivateFile->FileName); | |
1315 | ||
1316 | PrivateFile->FileName = malloc (AsciiStrSize (NewFileName)); | |
1317 | if (PrivateFile->FileName == NULL) { | |
1318 | goto Done; | |
1319 | } | |
1320 | ||
1321 | AsciiStrCpy (PrivateFile->FileName, NewFileName); | |
1322 | } else { | |
1323 | Status = EFI_DEVICE_ERROR; | |
1324 | goto Done; | |
1325 | } | |
1326 | } | |
1327 | ||
1328 | // | |
1329 | // Size change | |
1330 | // | |
1331 | if (SizeChangeFlag) { | |
1332 | if (PrivateFile->IsDirectoryPath) { | |
1333 | Status = EFI_UNSUPPORTED; | |
1334 | goto Done; | |
1335 | } | |
1336 | ||
1337 | if (PrivateFile->IsOpenedByRead || OldFileInfo->Attribute & EFI_FILE_READ_ONLY) { | |
1338 | Status = EFI_ACCESS_DENIED; | |
1339 | goto Done; | |
1340 | } | |
1341 | ||
1342 | if (ftruncate (PrivateFile->fd, NewFileInfo->FileSize) != 0) { | |
1343 | Status = ErrnoToEfiStatus (); | |
1344 | goto Done; | |
1345 | } | |
1346 | ||
1347 | } | |
1348 | ||
1349 | // | |
1350 | // Time change | |
1351 | // | |
1352 | if (TimeChangeFlag) { | |
1353 | NewLastAccessSystemTime.tm_year = NewFileInfo->LastAccessTime.Year; | |
1354 | NewLastAccessSystemTime.tm_mon = NewFileInfo->LastAccessTime.Month; | |
1355 | NewLastAccessSystemTime.tm_mday = NewFileInfo->LastAccessTime.Day; | |
1356 | NewLastAccessSystemTime.tm_hour = NewFileInfo->LastAccessTime.Hour; | |
1357 | NewLastAccessSystemTime.tm_min = NewFileInfo->LastAccessTime.Minute; | |
1358 | NewLastAccessSystemTime.tm_sec = NewFileInfo->LastAccessTime.Second; | |
1359 | NewLastAccessSystemTime.tm_isdst = 0; | |
1360 | ||
1361 | Utime.actime = mktime (&NewLastAccessSystemTime); | |
1362 | ||
1363 | NewLastWriteSystemTime.tm_year = NewFileInfo->ModificationTime.Year; | |
1364 | NewLastWriteSystemTime.tm_mon = NewFileInfo->ModificationTime.Month; | |
1365 | NewLastWriteSystemTime.tm_mday = NewFileInfo->ModificationTime.Day; | |
1366 | NewLastWriteSystemTime.tm_hour = NewFileInfo->ModificationTime.Hour; | |
1367 | NewLastWriteSystemTime.tm_min = NewFileInfo->ModificationTime.Minute; | |
1368 | NewLastWriteSystemTime.tm_sec = NewFileInfo->ModificationTime.Second; | |
1369 | NewLastWriteSystemTime.tm_isdst = 0; | |
1370 | ||
1371 | Utime.modtime = mktime (&NewLastWriteSystemTime); | |
1372 | ||
1373 | if (Utime.actime == (time_t)-1 || Utime.modtime == (time_t)-1) { | |
1374 | goto Done; | |
1375 | } | |
1376 | ||
1377 | if (utime (PrivateFile->FileName, &Utime) == -1) { | |
1378 | Status = ErrnoToEfiStatus (); | |
1379 | goto Done; | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | // | |
1384 | // No matter about AttrChangeFlag, Attribute must be set. | |
1385 | // Because operation before may cause attribute change. | |
1386 | // | |
1387 | NewAttr = OldAttr.st_mode; | |
1388 | ||
1389 | if (NewFileInfo->Attribute & EFI_FILE_READ_ONLY) { | |
1390 | NewAttr &= ~(S_IRUSR | S_IRGRP | S_IROTH); | |
1391 | } else { | |
1392 | NewAttr |= S_IRUSR; | |
1393 | } | |
1394 | ||
1395 | if (chmod (NewFileName, NewAttr) != 0) { | |
1396 | Status = ErrnoToEfiStatus (); | |
1397 | } | |
1398 | ||
1399 | Done: | |
1400 | if (OldFileInfo != NULL) { | |
1401 | free (OldFileInfo); | |
1402 | } | |
1403 | ||
1404 | if (OldFileName != NULL) { | |
1405 | free (OldFileName); | |
1406 | } | |
1407 | ||
1408 | if (NewFileName != NULL) { | |
1409 | free (NewFileName); | |
1410 | } | |
1411 | ||
1412 | return Status; | |
1413 | } | |
1414 | ||
1415 | ||
1416 | /** | |
1417 | Flush data back for the file handle. | |
1418 | ||
1419 | @param This Protocol instance pointer. | |
1420 | ||
1421 | @retval EFI_SUCCESS Data was written. | |
1422 | @retval EFI_UNSUPPORTED Writes to Open directory are not supported. | |
1423 | @retval EFI_NO_MEDIA The device has no media. | |
1424 | @retval EFI_DEVICE_ERROR The device reported an error. | |
1425 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. | |
1426 | @retval EFI_WRITE_PROTECTED The device is write protected. | |
1427 | @retval EFI_ACCESS_DENIED The file was open for read only. | |
1428 | @retval EFI_VOLUME_FULL The volume is full. | |
1429 | ||
1430 | **/ | |
1431 | EFI_STATUS | |
1432 | PosixFileFlush ( | |
1433 | IN EFI_FILE_PROTOCOL *This | |
1434 | ) | |
1435 | { | |
1436 | EMU_EFI_FILE_PRIVATE *PrivateFile; | |
1437 | ||
1438 | ||
1439 | PrivateFile = EMU_EFI_FILE_PRIVATE_DATA_FROM_THIS (This); | |
1440 | ||
1441 | if (PrivateFile->IsDirectoryPath) { | |
1442 | return EFI_UNSUPPORTED; | |
1443 | } | |
1444 | ||
1445 | if (PrivateFile->IsOpenedByRead) { | |
1446 | return EFI_ACCESS_DENIED; | |
1447 | } | |
1448 | ||
1449 | if (PrivateFile->fd < 0) { | |
1450 | return EFI_DEVICE_ERROR; | |
1451 | } | |
1452 | ||
1453 | if (fsync (PrivateFile->fd) != 0) { | |
1454 | return ErrnoToEfiStatus (); | |
1455 | } | |
1456 | ||
1457 | return EFI_SUCCESS; | |
1458 | } | |
1459 | ||
1460 | ||
1461 | ||
1462 | EFI_STATUS | |
1463 | PosixFileSystmeThunkOpen ( | |
1464 | IN EMU_IO_THUNK_PROTOCOL *This | |
1465 | ) | |
1466 | { | |
1467 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *Private; | |
1468 | UINTN i; | |
1469 | ||
1470 | if (This->Private != NULL) { | |
1471 | return EFI_ALREADY_STARTED; | |
1472 | } | |
1473 | ||
1474 | if (!CompareGuid (This->Protocol, &gEfiSimpleFileSystemProtocolGuid)) { | |
1475 | return EFI_UNSUPPORTED; | |
1476 | } | |
1477 | ||
1478 | Private = malloc (sizeof (EMU_SIMPLE_FILE_SYSTEM_PRIVATE)); | |
1479 | if (Private == NULL) { | |
1480 | return EFI_OUT_OF_RESOURCES; | |
1481 | } | |
1482 | ||
1483 | Private->FilePath = malloc (StrLen (This->ConfigString) + 1); | |
1484 | if (Private->FilePath == NULL) { | |
1485 | free (Private); | |
1486 | return EFI_OUT_OF_RESOURCES; | |
1487 | } | |
1488 | ||
1489 | // Convert Unicode to Ascii | |
1490 | for (i = 0; This->ConfigString[i] != 0; i++) { | |
1491 | Private->FilePath[i] = This->ConfigString[i]; | |
1492 | } | |
1493 | Private->FilePath[i] = 0; | |
1494 | ||
1495 | ||
0c493bf4 | 1496 | Private->VolumeLabel = malloc (StrSize (L"EFI_EMULATED")); |
949f388f | 1497 | if (Private->VolumeLabel == NULL) { |
1498 | free (Private->FilePath); | |
1499 | free (Private); | |
1500 | return EFI_OUT_OF_RESOURCES; | |
1501 | } | |
1502 | StrCpy (Private->VolumeLabel, L"EFI_EMULATED"); | |
1503 | ||
1504 | Private->Signature = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE; | |
1505 | Private->Thunk = This; | |
1506 | CopyMem (&Private->SimpleFileSystem, &gPosixFileSystemProtocol, sizeof (Private->SimpleFileSystem)); | |
1507 | Private->FileHandlesOpen = FALSE; | |
1508 | ||
1509 | This->Interface = &Private->SimpleFileSystem; | |
1510 | This->Private = Private; | |
1511 | return EFI_SUCCESS; | |
1512 | } | |
1513 | ||
1514 | ||
1515 | EFI_STATUS | |
1516 | PosixFileSystmeThunkClose ( | |
1517 | IN EMU_IO_THUNK_PROTOCOL *This | |
1518 | ) | |
1519 | { | |
1520 | EMU_SIMPLE_FILE_SYSTEM_PRIVATE *Private; | |
1521 | ||
1522 | if (!CompareGuid (This->Protocol, &gEfiSimpleFileSystemProtocolGuid)) { | |
1523 | return EFI_UNSUPPORTED; | |
1524 | } | |
1525 | ||
1526 | Private = This->Private; | |
1527 | ||
1528 | if (Private->FileHandlesOpen) { | |
1529 | // | |
1530 | // Close only supported if all the EFI_FILE_HANDLEs have been closed. | |
1531 | // | |
1532 | return EFI_NOT_READY; | |
1533 | } | |
1534 | ||
1535 | if (This->Private != NULL) { | |
033d0e5f | 1536 | if (Private->VolumeLabel != NULL) { |
949f388f | 1537 | free (Private->VolumeLabel); |
1538 | } | |
1539 | free (This->Private); | |
1540 | } | |
1541 | ||
1542 | return EFI_SUCCESS; | |
1543 | } | |
1544 | ||
1545 | ||
1546 | EMU_IO_THUNK_PROTOCOL gPosixFileSystemThunkIo = { | |
1547 | &gEfiSimpleFileSystemProtocolGuid, | |
1548 | NULL, | |
1549 | NULL, | |
1550 | 0, | |
1551 | GasketPosixFileSystmeThunkOpen, | |
1552 | GasketPosixFileSystmeThunkClose, | |
1553 | NULL | |
1554 | }; | |
1555 | ||
1556 |