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1 /**@file
2
3 Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
4 This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php
8
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11
12 Module Name:
13
14 WinNtSimpleFileSystem.c
15
16 Abstract:
17
18 Produce Simple File System abstractions for directories on your PC using Win32 APIs.
19 The configuration of what devices to mount or emulate comes from NT
20 environment variables. The variables must be visible to the Microsoft*
21 Developer Studio for them to work.
22
23 * Other names and brands may be claimed as the property of others.
24
25 **/
26
27 //
28 // The package level header files this module uses
29 //
30 #include <Uefi.h>
31 #include <WinNtDxe.h>
32 //
33 // The protocols, PPI and GUID defintions for this module
34 //
35 #include <Guid/FileSystemVolumeLabelInfo.h>
36 #include <Protocol/WinNtIo.h>
37 #include <Protocol/ComponentName.h>
38 #include <Guid/FileInfo.h>
39 #include <Protocol/DriverBinding.h>
40 #include <Guid/FileSystemInfo.h>
41 #include <Protocol/SimpleFileSystem.h>
42 //
43 // The Library classes this module consumes
44 //
45 #include <Library/DebugLib.h>
46 #include <Library/BaseLib.h>
47 #include <Library/UefiDriverEntryPoint.h>
48 #include <Library/UefiLib.h>
49 #include <Library/BaseMemoryLib.h>
50 #include <Library/UefiBootServicesTableLib.h>
51 #include <Library/MemoryAllocationLib.h>
52
53 #include "WinNtSimpleFileSystem.h"
54
55 EFI_DRIVER_BINDING_PROTOCOL gWinNtSimpleFileSystemDriverBinding = {
56 WinNtSimpleFileSystemDriverBindingSupported,
57 WinNtSimpleFileSystemDriverBindingStart,
58 WinNtSimpleFileSystemDriverBindingStop,
59 0xa,
60 NULL,
61 NULL
62 };
63
64 /**
65 The user Entry Point for module WinNtSimpleFileSystem. The user code starts with this function.
66
67 @param[in] ImageHandle The firmware allocated handle for the EFI image.
68 @param[in] SystemTable A pointer to the EFI System Table.
69
70 @retval EFI_SUCCESS The entry point is executed successfully.
71 @retval other Some error occurs when executing this entry point.
72
73 **/
74 EFI_STATUS
75 EFIAPI
76 InitializeWinNtSimpleFileSystem(
77 IN EFI_HANDLE ImageHandle,
78 IN EFI_SYSTEM_TABLE *SystemTable
79 )
80 {
81 EFI_STATUS Status;
82
83 //
84 // Install driver model protocol(s).
85 //
86 Status = EfiLibInstallDriverBindingComponentName2 (
87 ImageHandle,
88 SystemTable,
89 &gWinNtSimpleFileSystemDriverBinding,
90 ImageHandle,
91 &gWinNtSimpleFileSystemComponentName,
92 &gWinNtSimpleFileSystemComponentName2
93 );
94 ASSERT_EFI_ERROR (Status);
95
96
97 return Status;
98 }
99
100 CHAR16 *
101 EfiStrChr (
102 IN CHAR16 *Str,
103 IN CHAR16 Chr
104 )
105 /*++
106
107 Routine Description:
108
109 Locate the first occurance of a character in a string.
110
111 Arguments:
112
113 Str - Pointer to NULL terminated unicode string.
114 Chr - Character to locate.
115
116 Returns:
117
118 If Str is NULL, then NULL is returned.
119 If Chr is not contained in Str, then NULL is returned.
120 If Chr is contained in Str, then a pointer to the first occurance of Chr in Str is returned.
121
122 --*/
123 {
124 if (Str == NULL) {
125 return Str;
126 }
127
128 while (*Str != '\0' && *Str != Chr) {
129 ++Str;
130 }
131
132 return (*Str == Chr) ? Str : NULL;
133 }
134
135 BOOLEAN
136 IsZero (
137 IN VOID *Buffer,
138 IN UINTN Length
139 )
140 /*++
141
142 Routine Description:
143
144 TODO: Add function description
145
146 Arguments:
147
148 Buffer - TODO: add argument description
149 Length - TODO: add argument description
150
151 Returns:
152
153 TODO: add return values
154
155 --*/
156 {
157 if (Buffer == NULL || Length == 0) {
158 return FALSE;
159 }
160
161 if (*(UINT8 *) Buffer != 0) {
162 return FALSE;
163 }
164
165 if (Length > 1) {
166 if (!CompareMem (Buffer, (UINT8 *) Buffer + 1, Length - 1)) {
167 return FALSE;
168 }
169 }
170
171 return TRUE;
172 }
173
174 VOID
175 CutPrefix (
176 IN CHAR16 *Str,
177 IN UINTN Count
178 )
179 /*++
180
181 Routine Description:
182
183 TODO: Add function description
184
185 Arguments:
186
187 Str - TODO: add argument description
188 Count - TODO: add argument description
189
190 Returns:
191
192 TODO: add return values
193
194 --*/
195 {
196 CHAR16 *Pointer;
197
198 if (StrLen (Str) < Count) {
199 ASSERT (0);
200 }
201
202 if (Count != 0) {
203 for (Pointer = Str; *(Pointer + Count); Pointer++) {
204 *Pointer = *(Pointer + Count);
205 }
206 *Pointer = *(Pointer + Count);
207 }
208 }
209
210
211
212 EFI_STATUS
213 EFIAPI
214 WinNtSimpleFileSystemDriverBindingSupported (
215 IN EFI_DRIVER_BINDING_PROTOCOL *This,
216 IN EFI_HANDLE ControllerHandle,
217 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
218 )
219 /*++
220
221 Routine Description:
222
223 Check to see if the driver supports a given controller.
224
225 Arguments:
226
227 This - A pointer to an instance of the EFI_DRIVER_BINDING_PROTOCOL.
228
229 ControllerHandle - EFI handle of the controller to test.
230
231 RemainingDevicePath - Pointer to remaining portion of a device path.
232
233 Returns:
234
235 EFI_SUCCESS - The device specified by ControllerHandle and RemainingDevicePath is supported by the driver
236 specified by This.
237
238 EFI_ALREADY_STARTED - The device specified by ControllerHandle and RemainingDevicePath is already being managed by
239 the driver specified by This.
240
241 EFI_ACCESS_DENIED - The device specified by ControllerHandle and RemainingDevicePath is already being managed by
242 a different driver or an application that requires exclusive access.
243
244 EFI_UNSUPPORTED - The device specified by ControllerHandle and RemainingDevicePath is not supported by the
245 driver specified by This.
246
247 --*/
248 {
249 EFI_STATUS Status;
250 EFI_WIN_NT_IO_PROTOCOL *WinNtIo;
251
252 //
253 // Open the IO Abstraction(s) needed to perform the supported test
254 //
255 Status = gBS->OpenProtocol (
256 ControllerHandle,
257 &gEfiWinNtIoProtocolGuid,
258 (VOID **) &WinNtIo,
259 This->DriverBindingHandle,
260 ControllerHandle,
261 EFI_OPEN_PROTOCOL_BY_DRIVER
262 );
263 if (EFI_ERROR (Status)) {
264 return Status;
265 }
266
267 //
268 // Make sure GUID is for a File System handle.
269 //
270 Status = EFI_UNSUPPORTED;
271 if (CompareGuid (WinNtIo->TypeGuid, &gEfiWinNtFileSystemGuid)) {
272 Status = EFI_SUCCESS;
273 }
274
275 //
276 // Close the I/O Abstraction(s) used to perform the supported test
277 //
278 gBS->CloseProtocol (
279 ControllerHandle,
280 &gEfiWinNtIoProtocolGuid,
281 This->DriverBindingHandle,
282 ControllerHandle
283 );
284
285 return Status;
286 }
287
288 EFI_STATUS
289 EFIAPI
290 WinNtSimpleFileSystemDriverBindingStart (
291 IN EFI_DRIVER_BINDING_PROTOCOL *This,
292 IN EFI_HANDLE ControllerHandle,
293 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
294 )
295 /*++
296
297 Routine Description:
298
299 Starts a device controller or a bus controller.
300
301 Arguments:
302
303 This - A pointer to an instance of the EFI_DRIVER_BINDING_PROTOCOL.
304
305 ControllerHandle - EFI handle of the controller to start.
306
307 RemainingDevicePath - Pointer to remaining portion of a device path.
308
309 Returns:
310
311 EFI_SUCCESS - The device or bus controller has been started.
312
313 EFI_DEVICE_ERROR - The device could not be started due to a device failure.
314
315 EFI_OUT_OF_RESOURCES - The request could not be completed due to lack of resources.
316
317 --*/
318 {
319 EFI_STATUS Status;
320 EFI_WIN_NT_IO_PROTOCOL *WinNtIo;
321 WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE *Private;
322
323 Private = NULL;
324
325 //
326 // Open the IO Abstraction(s) needed
327 //
328 Status = gBS->OpenProtocol (
329 ControllerHandle,
330 &gEfiWinNtIoProtocolGuid,
331 (VOID **) &WinNtIo,
332 This->DriverBindingHandle,
333 ControllerHandle,
334 EFI_OPEN_PROTOCOL_BY_DRIVER
335 );
336 if (EFI_ERROR (Status)) {
337 return Status;
338 }
339
340 //
341 // Validate GUID
342 //
343 if (!CompareGuid (WinNtIo->TypeGuid, &gEfiWinNtFileSystemGuid)) {
344 Status = EFI_UNSUPPORTED;
345 goto Done;
346 }
347
348 Private = AllocatePool (sizeof (WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE));
349 if (Private == NULL) {
350 Status = EFI_OUT_OF_RESOURCES;
351
352 goto Done;
353 }
354
355 Private->Signature = WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE;
356 Private->WinNtThunk = WinNtIo->WinNtThunk;
357
358 Private->FilePath = WinNtIo->EnvString;
359
360 Private->VolumeLabel = AllocatePool (StrSize (L"EFI_EMULATED"));
361 if (Private->VolumeLabel == NULL) {
362 Status = EFI_OUT_OF_RESOURCES;
363 goto Done;
364 }
365
366 StrCpy (Private->VolumeLabel, L"EFI_EMULATED");
367
368 Private->SimpleFileSystem.Revision = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION;
369 Private->SimpleFileSystem.OpenVolume = WinNtSimpleFileSystemOpenVolume;
370
371 Private->WinNtThunk->SetErrorMode (SEM_FAILCRITICALERRORS);
372
373 Private->ControllerNameTable = NULL;
374
375 AddUnicodeString2 (
376 "eng",
377 gWinNtSimpleFileSystemComponentName.SupportedLanguages,
378 &Private->ControllerNameTable,
379 WinNtIo->EnvString,
380 TRUE
381 );
382 AddUnicodeString2 (
383 "en",
384 gWinNtSimpleFileSystemComponentName2.SupportedLanguages,
385 &Private->ControllerNameTable,
386 WinNtIo->EnvString,
387 FALSE
388 );
389
390
391 Status = gBS->InstallMultipleProtocolInterfaces (
392 &ControllerHandle,
393 &gEfiSimpleFileSystemProtocolGuid,
394 &Private->SimpleFileSystem,
395 NULL
396 );
397
398 Done:
399 if (EFI_ERROR (Status)) {
400
401 if (Private != NULL) {
402
403 FreeUnicodeStringTable (Private->ControllerNameTable);
404
405 FreePool (Private);
406 }
407
408 gBS->CloseProtocol (
409 ControllerHandle,
410 &gEfiWinNtIoProtocolGuid,
411 This->DriverBindingHandle,
412 ControllerHandle
413 );
414 }
415
416 return Status;
417 }
418
419 EFI_STATUS
420 EFIAPI
421 WinNtSimpleFileSystemDriverBindingStop (
422 IN EFI_DRIVER_BINDING_PROTOCOL *This,
423 IN EFI_HANDLE ControllerHandle,
424 IN UINTN NumberOfChildren,
425 IN EFI_HANDLE *ChildHandleBuffer
426 )
427 /*++
428
429 Routine Description:
430
431 TODO: Add function description
432
433 Arguments:
434
435 This - A pointer to an instance of the EFI_DRIVER_BINDING_PROTOCOL.
436
437 ControllerHandle - A handle to the device to be stopped.
438
439 NumberOfChildren - The number of child device handles in ChildHandleBuffer.
440
441 ChildHandleBuffer - An array of child device handles to be freed.
442
443 Returns:
444
445 EFI_SUCCESS - The device has been stopped.
446
447 EFI_DEVICE_ERROR - The device could not be stopped due to a device failure.
448
449 --*/
450 // TODO: EFI_UNSUPPORTED - add return value to function comment
451 {
452 EFI_STATUS Status;
453 EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *SimpleFileSystem;
454 WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE *Private;
455
456 //
457 // Get our context back
458 //
459 Status = gBS->OpenProtocol (
460 ControllerHandle,
461 &gEfiSimpleFileSystemProtocolGuid,
462 (VOID **) &SimpleFileSystem,
463 This->DriverBindingHandle,
464 ControllerHandle,
465 EFI_OPEN_PROTOCOL_GET_PROTOCOL
466 );
467 if (EFI_ERROR (Status)) {
468 return EFI_UNSUPPORTED;
469 }
470
471 Private = WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (SimpleFileSystem);
472
473 //
474 // Uninstall the Simple File System Protocol from ControllerHandle
475 //
476 Status = gBS->UninstallMultipleProtocolInterfaces (
477 ControllerHandle,
478 &gEfiSimpleFileSystemProtocolGuid,
479 &Private->SimpleFileSystem,
480 NULL
481 );
482 if (!EFI_ERROR (Status)) {
483 Status = gBS->CloseProtocol (
484 ControllerHandle,
485 &gEfiWinNtIoProtocolGuid,
486 This->DriverBindingHandle,
487 ControllerHandle
488 );
489 }
490
491 if (!EFI_ERROR (Status)) {
492 //
493 // Free our instance data
494 //
495 FreeUnicodeStringTable (Private->ControllerNameTable);
496
497 FreePool (Private);
498 }
499
500 return Status;
501 }
502
503 EFI_STATUS
504 EFIAPI
505 WinNtSimpleFileSystemOpenVolume (
506 IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This,
507 OUT EFI_FILE_PROTOCOL **Root
508 )
509 /*++
510
511 Routine Description:
512
513 Open the root directory on a volume.
514
515 Arguments:
516
517 This - A pointer to the volume to open.
518
519 Root - A pointer to storage for the returned opened file handle of the root directory.
520
521 Returns:
522
523 EFI_SUCCESS - The volume was opened.
524
525 EFI_UNSUPPORTED - The volume does not support the requested file system type.
526
527 EFI_NO_MEDIA - The device has no media.
528
529 EFI_DEVICE_ERROR - The device reported an error.
530
531 EFI_VOLUME_CORRUPTED - The file system structures are corrupted.
532
533 EFI_ACCESS_DENIED - The service denied access to the file.
534
535 EFI_OUT_OF_RESOURCES - The file volume could not be opened due to lack of resources.
536
537 EFI_MEDIA_CHANGED - The device has new media or the media is no longer supported.
538
539 --*/
540 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
541 {
542 EFI_STATUS Status;
543 WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE *Private;
544 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
545 EFI_TPL OldTpl;
546 CHAR16 *TempFileName;
547 UINTN Size;
548
549 if (This == NULL || Root == NULL) {
550 return EFI_INVALID_PARAMETER;
551 }
552
553 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
554
555 Private = WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (This);
556
557 PrivateFile = AllocatePool (sizeof (WIN_NT_EFI_FILE_PRIVATE));
558 if (PrivateFile == NULL) {
559 Status = EFI_OUT_OF_RESOURCES;
560 goto Done;
561 }
562
563 PrivateFile->FileName = AllocatePool (StrSize (Private->FilePath));
564 if (PrivateFile->FileName == NULL) {
565 Status = EFI_OUT_OF_RESOURCES;
566 goto Done;
567 }
568
569 PrivateFile->FilePath = AllocatePool (StrSize (Private->FilePath));
570 if (PrivateFile->FilePath == NULL) {
571 Status = EFI_OUT_OF_RESOURCES;
572 goto Done;
573 }
574
575 StrCpy (PrivateFile->FilePath, Private->FilePath);
576 StrCpy (PrivateFile->FileName, PrivateFile->FilePath);
577 PrivateFile->Signature = WIN_NT_EFI_FILE_PRIVATE_SIGNATURE;
578 PrivateFile->WinNtThunk = Private->WinNtThunk;
579 PrivateFile->SimpleFileSystem = This;
580 PrivateFile->IsRootDirectory = TRUE;
581 PrivateFile->IsDirectoryPath = TRUE;
582 PrivateFile->IsOpenedByRead = TRUE;
583 PrivateFile->EfiFile.Revision = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION;
584 PrivateFile->EfiFile.Open = WinNtSimpleFileSystemOpen;
585 PrivateFile->EfiFile.Close = WinNtSimpleFileSystemClose;
586 PrivateFile->EfiFile.Delete = WinNtSimpleFileSystemDelete;
587 PrivateFile->EfiFile.Read = WinNtSimpleFileSystemRead;
588 PrivateFile->EfiFile.Write = WinNtSimpleFileSystemWrite;
589 PrivateFile->EfiFile.GetPosition = WinNtSimpleFileSystemGetPosition;
590 PrivateFile->EfiFile.SetPosition = WinNtSimpleFileSystemSetPosition;
591 PrivateFile->EfiFile.GetInfo = WinNtSimpleFileSystemGetInfo;
592 PrivateFile->EfiFile.SetInfo = WinNtSimpleFileSystemSetInfo;
593 PrivateFile->EfiFile.Flush = WinNtSimpleFileSystemFlush;
594 PrivateFile->IsValidFindBuf = FALSE;
595
596 //
597 // Set DirHandle
598 //
599 PrivateFile->DirHandle = PrivateFile->WinNtThunk->CreateFile (
600 PrivateFile->FilePath,
601 GENERIC_READ,
602 FILE_SHARE_READ | FILE_SHARE_WRITE,
603 NULL,
604 OPEN_EXISTING,
605 FILE_FLAG_BACKUP_SEMANTICS,
606 NULL
607 );
608
609 if (PrivateFile->DirHandle == INVALID_HANDLE_VALUE) {
610 Status = EFI_NOT_FOUND;
611 goto Done;
612 }
613
614 //
615 // Find the first file under it
616 //
617 Size = StrSize (PrivateFile->FilePath);
618 Size += StrSize (L"\\*");
619 Status = gBS->AllocatePool (
620 EfiBootServicesData,
621 Size,
622 (VOID **)&TempFileName
623 );
624 if (EFI_ERROR (Status)) {
625 goto Done;
626 }
627 StrCpy (TempFileName, PrivateFile->FilePath);
628 StrCat (TempFileName, L"\\*");
629
630 PrivateFile->LHandle = PrivateFile->WinNtThunk->FindFirstFile (TempFileName, &PrivateFile->FindBuf);
631 FreePool (TempFileName);
632
633 if (PrivateFile->LHandle == INVALID_HANDLE_VALUE) {
634 PrivateFile->IsValidFindBuf = FALSE;
635 } else {
636 PrivateFile->IsValidFindBuf = TRUE;
637 }
638 *Root = &PrivateFile->EfiFile;
639
640 Status = EFI_SUCCESS;
641
642 Done:
643 if (EFI_ERROR (Status)) {
644 if (PrivateFile) {
645 if (PrivateFile->FileName) {
646 FreePool (PrivateFile->FileName);
647 }
648
649 if (PrivateFile->FilePath) {
650 FreePool (PrivateFile->FilePath);
651 }
652
653 FreePool (PrivateFile);
654 }
655 }
656
657 gBS->RestoreTPL (OldTpl);
658
659 return Status;
660 }
661
662 /**
663 Count the number of Leading Dot in FileNameToken.
664
665 @param FileNameToken A string representing a token in the path name.
666
667 @return UINTN The number of leading dot in the name.
668
669 **/
670 UINTN
671 CountLeadingDots (
672 IN CONST CHAR16 * FileNameToken
673 )
674 {
675 UINTN Num;
676
677 Num = 0;
678 while (*FileNameToken == L'.') {
679 Num++;
680 FileNameToken++;
681 }
682
683 return Num;
684 }
685
686 BOOLEAN
687 IsFileNameTokenValid (
688 IN CONST CHAR16 * FileNameToken
689 )
690 {
691 UINTN Num;
692 if (StrStr (FileNameToken, L"/") != NULL) {
693 //
694 // No L'/' in file name.
695 //
696 return FALSE;
697 } else {
698 //
699 // If Token has all dot, the number should not exceed 2
700 //
701 Num = CountLeadingDots (FileNameToken);
702
703 if (Num == StrLen (FileNameToken)) {
704 //
705 // If the FileNameToken only contains a number of L'.'.
706 //
707 if (Num > 2) {
708 return FALSE;
709 }
710 }
711 }
712
713 return TRUE;
714 }
715
716 /**
717 Return the first string token found in the indirect pointer a String named by FileName.
718
719 On input, FileName is a indirect pointer pointing to a String.
720 On output, FileName is a updated to point to the next character after the first
721 found L"\" or NULL if there is no L"\" found.
722
723 @param FileName A indirect pointer pointing to a FileName.
724
725 @return Token The first string token found before a L"\".
726
727 **/
728 CHAR16 *
729 GetNextFileNameToken (
730 IN OUT CONST CHAR16 ** FileName
731 )
732 {
733 CHAR16 *SlashPos;
734 CHAR16 *Token;
735 UINTN Offset;
736 ASSERT (**FileName != L'\\');
737 ASSERT (**FileName != L'\0');
738
739 SlashPos = StrStr (*FileName, L"\\");
740 if (SlashPos == NULL) {
741 Token = AllocateCopyPool (StrSize(*FileName), *FileName);
742 *FileName = NULL;
743 } else {
744 Offset = SlashPos - *FileName;
745 Token = AllocateZeroPool ((Offset + 1) * sizeof (CHAR16));
746 StrnCpy (Token, *FileName, Offset);
747 //
748 // Point *FileName to the next character after L'\'.
749 //
750 *FileName = *FileName + Offset + 1;
751 //
752 // If *FileName is an empty string, then set *FileName to NULL
753 //
754 if (**FileName == L'\0') {
755 *FileName = NULL;
756 }
757 }
758
759 return Token;
760 }
761
762 /**
763 Check if a FileName contains only Valid Characters.
764
765 If FileName contains only a single L'\', return TRUE.
766 If FileName contains two adjacent L'\', return FALSE.
767 If FileName conatins L'/' , return FALSE.
768 If FielName contains more than two dots seperated with other FileName characters
769 by L'\', return FALSE. For example, L'.\...\filename.txt' is invalid path name. But L'..TwoDots\filename.txt' is valid path name.
770
771 @param FileName The File Name String to check.
772
773 @return TRUE FileName only contains valid characters.
774 @return FALSE FileName contains at least one invalid character.
775
776 **/
777
778 BOOLEAN
779 IsFileNameValid (
780 IN CONST CHAR16 *FileName
781 )
782 {
783 CHAR16 *Token;
784 BOOLEAN Valid;
785
786 //
787 // If FileName is just L'\', then it is a valid pathname.
788 //
789 if (StrCmp (FileName, L"\\") == 0) {
790 return TRUE;
791 }
792 //
793 // We don't support two or more adjacent L'\'.
794 //
795 if (StrStr (FileName, L"\\\\") != NULL) {
796 return FALSE;
797 }
798
799 //
800 // Is FileName has a leading L"\", skip to next character.
801 //
802 if (FileName [0] == L'\\') {
803 FileName++;
804 }
805
806 do {
807 Token = GetNextFileNameToken (&FileName);
808 Valid = IsFileNameTokenValid (Token);
809 FreePool (Token);
810
811 if (!Valid)
812 return FALSE;
813 } while (FileName != NULL);
814
815 return TRUE;
816 }
817
818 EFI_STATUS
819 EFIAPI
820 WinNtSimpleFileSystemOpen (
821 IN EFI_FILE_PROTOCOL *This,
822 OUT EFI_FILE_PROTOCOL **NewHandle,
823 IN CHAR16 *FileName,
824 IN UINT64 OpenMode,
825 IN UINT64 Attributes
826 )
827 /*++
828
829 Routine Description:
830
831 Open a file relative to the source file location.
832
833 Arguments:
834
835 This - A pointer to the source file location.
836
837 NewHandle - Pointer to storage for the new file handle.
838
839 FileName - Pointer to the file name to be opened.
840
841 OpenMode - File open mode information.
842
843 Attributes - File creation attributes.
844
845 Returns:
846
847 EFI_SUCCESS - The file was opened.
848
849 EFI_NOT_FOUND - The file could not be found in the volume.
850
851 EFI_NO_MEDIA - The device has no media.
852
853 EFI_MEDIA_CHANGED - The device has new media or the media is no longer supported.
854
855 EFI_DEVICE_ERROR - The device reported an error.
856
857 EFI_VOLUME_CORRUPTED - The file system structures are corrupted.
858
859 EFI_WRITE_PROTECTED - The volume or file is write protected.
860
861 EFI_ACCESS_DENIED - The service denied access to the file.
862
863 EFI_OUT_OF_RESOURCES - Not enough resources were available to open the file.
864
865 EFI_VOLUME_FULL - There is not enough space left to create the new file.
866
867 --*/
868 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
869 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
870 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
871 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
872 {
873 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
874 WIN_NT_EFI_FILE_PRIVATE *NewPrivateFile;
875 WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;
876 EFI_STATUS Status;
877 CHAR16 *RealFileName;
878 CHAR16 *TempFileName;
879 CHAR16 *ParseFileName;
880 CHAR16 *GuardPointer;
881 CHAR16 TempChar;
882 DWORD LastError;
883 UINTN Count;
884 BOOLEAN LoopFinish;
885 UINTN InfoSize;
886 EFI_FILE_INFO *Info;
887 UINTN Size;
888
889 //
890 // Check for obvious invalid parameters.
891 //
892 if (This == NULL || NewHandle == NULL || FileName == NULL) {
893 return EFI_INVALID_PARAMETER;
894 }
895
896 switch (OpenMode) {
897 case EFI_FILE_MODE_CREATE | EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE:
898 if (Attributes &~EFI_FILE_VALID_ATTR) {
899 return EFI_INVALID_PARAMETER;
900 }
901
902 if (Attributes & EFI_FILE_READ_ONLY) {
903 return EFI_INVALID_PARAMETER;
904 }
905
906 //
907 // fall through
908 //
909 case EFI_FILE_MODE_READ:
910 case EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE:
911 break;
912
913 default:
914 return EFI_INVALID_PARAMETER;
915 }
916
917 //
918 // Init local variables
919 //
920 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
921 PrivateRoot = WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);
922 NewPrivateFile = NULL;
923
924 //
925 // Allocate buffer for FileName as the passed in FileName may be read only
926 //
927 TempFileName = AllocatePool (StrSize (FileName));
928 if (TempFileName == NULL) {
929 return EFI_OUT_OF_RESOURCES;
930 }
931 StrCpy (TempFileName, FileName);
932 FileName = TempFileName;
933
934 if (FileName[StrLen (FileName) - 1] == L'\\') {
935 FileName[StrLen (FileName) - 1] = 0;
936 }
937
938 //
939 // If file name does not equal to "." or ".." and not trailed with "\..",
940 // then we trim the leading/trailing blanks and trailing dots
941 //
942 if (StrCmp (FileName, L".") != 0 && StrCmp (FileName, L"..") != 0 &&
943 ((StrLen (FileName) >= 3) ? (StrCmp (&FileName[StrLen (FileName) - 3], L"\\..") != 0) : TRUE)) {
944 //
945 // Trim leading blanks
946 //
947 Count = 0;
948 for (TempFileName = FileName;
949 *TempFileName != 0 && *TempFileName == L' ';
950 TempFileName++) {
951 Count++;
952 }
953 CutPrefix (FileName, Count);
954 //
955 // Trim trailing blanks
956 //
957 for (TempFileName = FileName + StrLen (FileName) - 1;
958 TempFileName >= FileName && (*TempFileName == L' ');
959 TempFileName--) {
960 ;
961 }
962 *(TempFileName + 1) = 0;
963 }
964
965 //
966 // Attempt to open the file
967 //
968 NewPrivateFile = AllocatePool (sizeof (WIN_NT_EFI_FILE_PRIVATE));
969 if (NewPrivateFile == NULL) {
970 Status = EFI_OUT_OF_RESOURCES;
971 goto Done;
972 }
973
974 CopyMem (NewPrivateFile, PrivateFile, sizeof (WIN_NT_EFI_FILE_PRIVATE));
975
976 NewPrivateFile->FilePath = AllocatePool (StrSize (PrivateFile->FileName));
977 if (NewPrivateFile->FilePath == NULL) {
978 Status = EFI_OUT_OF_RESOURCES;
979 goto Done;
980 }
981
982 if (PrivateFile->IsDirectoryPath) {
983 StrCpy (NewPrivateFile->FilePath, PrivateFile->FileName);
984 } else {
985 StrCpy (NewPrivateFile->FilePath, PrivateFile->FilePath);
986 }
987
988 Size = StrSize (NewPrivateFile->FilePath);
989 Size += StrSize (L"\\");
990 Size += StrSize (FileName);
991 NewPrivateFile->FileName = AllocatePool (Size);
992 if (NewPrivateFile->FileName == NULL) {
993 Status = EFI_OUT_OF_RESOURCES;
994 goto Done;
995 }
996
997 if (*FileName == L'\\') {
998 StrCpy (NewPrivateFile->FileName, PrivateRoot->FilePath);
999 StrCat (NewPrivateFile->FileName, L"\\");
1000 StrCat (NewPrivateFile->FileName, FileName + 1);
1001 } else {
1002 StrCpy (NewPrivateFile->FileName, NewPrivateFile->FilePath);
1003 if (StrCmp (FileName, L"") != 0) {
1004 //
1005 // In case the filename becomes empty, especially after trimming dots and blanks
1006 //
1007 StrCat (NewPrivateFile->FileName, L"\\");
1008 StrCat (NewPrivateFile->FileName, FileName);
1009 }
1010 }
1011
1012 if (!IsFileNameValid (NewPrivateFile->FileName)) {
1013 Status = EFI_NOT_FOUND;
1014 goto Done;
1015 }
1016
1017 //
1018 // Get rid of . and .., except leading . or ..
1019 //
1020
1021 //
1022 // GuardPointer protect simplefilesystem root path not be destroyed
1023 //
1024 GuardPointer = NewPrivateFile->FileName + StrLen (PrivateRoot->FilePath);
1025
1026 LoopFinish = FALSE;
1027
1028 while (!LoopFinish) {
1029
1030 LoopFinish = TRUE;
1031
1032 for (ParseFileName = GuardPointer; *ParseFileName; ParseFileName++) {
1033 if (*ParseFileName == L'.' &&
1034 (*(ParseFileName + 1) == 0 || *(ParseFileName + 1) == L'\\') &&
1035 *(ParseFileName - 1) == L'\\'
1036 ) {
1037
1038 //
1039 // cut \.
1040 //
1041 CutPrefix (ParseFileName - 1, 2);
1042 LoopFinish = FALSE;
1043 break;
1044 }
1045
1046 if (*ParseFileName == L'.' &&
1047 *(ParseFileName + 1) == L'.' &&
1048 (*(ParseFileName + 2) == 0 || *(ParseFileName + 2) == L'\\') &&
1049 *(ParseFileName - 1) == L'\\'
1050 ) {
1051
1052 ParseFileName--;
1053 Count = 3;
1054
1055 while (ParseFileName != GuardPointer) {
1056 ParseFileName--;
1057 Count++;
1058 if (*ParseFileName == L'\\') {
1059 break;
1060 }
1061 }
1062
1063 //
1064 // cut \.. and its left directory
1065 //
1066 CutPrefix (ParseFileName, Count);
1067 LoopFinish = FALSE;
1068 break;
1069 }
1070 }
1071 }
1072
1073 RealFileName = NewPrivateFile->FileName;
1074 while (EfiStrChr (RealFileName, L'\\') != NULL) {
1075 RealFileName = EfiStrChr (RealFileName, L'\\') + 1;
1076 }
1077
1078 TempChar = 0;
1079 if (RealFileName != NewPrivateFile->FileName) {
1080 TempChar = *(RealFileName - 1);
1081 *(RealFileName - 1) = 0;
1082 }
1083
1084 FreePool (NewPrivateFile->FilePath);
1085 NewPrivateFile->FilePath = NULL;
1086 NewPrivateFile->FilePath = AllocatePool (StrSize (NewPrivateFile->FileName));
1087 if (NewPrivateFile->FilePath == NULL) {
1088 Status = EFI_OUT_OF_RESOURCES;
1089 goto Done;
1090 }
1091
1092 StrCpy (NewPrivateFile->FilePath, NewPrivateFile->FileName);
1093 if (TempChar != 0) {
1094 *(RealFileName - 1) = TempChar;
1095 }
1096
1097 NewPrivateFile->IsRootDirectory = FALSE;
1098
1099 //
1100 // Test whether file or directory
1101 //
1102 if (OpenMode & EFI_FILE_MODE_CREATE) {
1103 if (Attributes & EFI_FILE_DIRECTORY) {
1104 NewPrivateFile->IsDirectoryPath = TRUE;
1105 } else {
1106 NewPrivateFile->IsDirectoryPath = FALSE;
1107 }
1108 } else {
1109 NewPrivateFile->LHandle = INVALID_HANDLE_VALUE;
1110 NewPrivateFile->LHandle = NewPrivateFile->WinNtThunk->CreateFile (
1111 NewPrivateFile->FileName,
1112 GENERIC_READ,
1113 FILE_SHARE_READ | FILE_SHARE_WRITE,
1114 NULL,
1115 OPEN_EXISTING,
1116 0,
1117 NULL
1118 );
1119
1120 if (NewPrivateFile->LHandle != INVALID_HANDLE_VALUE) {
1121 NewPrivateFile->IsDirectoryPath = FALSE;
1122 NewPrivateFile->WinNtThunk->CloseHandle (NewPrivateFile->LHandle);
1123 } else {
1124 NewPrivateFile->IsDirectoryPath = TRUE;
1125 }
1126
1127 NewPrivateFile->LHandle = INVALID_HANDLE_VALUE;
1128 }
1129
1130 if (OpenMode & EFI_FILE_MODE_WRITE) {
1131 NewPrivateFile->IsOpenedByRead = FALSE;
1132 } else {
1133 NewPrivateFile->IsOpenedByRead = TRUE;
1134 }
1135
1136 Status = EFI_SUCCESS;
1137
1138 //
1139 // deal with directory
1140 //
1141 if (NewPrivateFile->IsDirectoryPath) {
1142
1143 Size = StrSize (NewPrivateFile->FileName);
1144 Size += StrSize (L"\\*");
1145 TempFileName = AllocatePool (Size);
1146 if (TempFileName == NULL) {
1147 Status = EFI_OUT_OF_RESOURCES;
1148 goto Done;
1149 }
1150
1151 StrCpy (TempFileName, NewPrivateFile->FileName);
1152
1153 if ((OpenMode & EFI_FILE_MODE_CREATE)) {
1154 //
1155 // Create a directory
1156 //
1157 if (!NewPrivateFile->WinNtThunk->CreateDirectory (TempFileName, NULL)) {
1158
1159 LastError = PrivateFile->WinNtThunk->GetLastError ();
1160 if (LastError != ERROR_ALREADY_EXISTS) {
1161 FreePool (TempFileName);
1162 Status = EFI_ACCESS_DENIED;
1163 goto Done;
1164 }
1165 }
1166 }
1167
1168 NewPrivateFile->DirHandle = NewPrivateFile->WinNtThunk->CreateFile (
1169 TempFileName,
1170 NewPrivateFile->IsOpenedByRead ? GENERIC_READ : (GENERIC_READ | GENERIC_WRITE),
1171 FILE_SHARE_READ | FILE_SHARE_WRITE,
1172 NULL,
1173 OPEN_EXISTING,
1174 FILE_FLAG_BACKUP_SEMANTICS,
1175 NULL
1176 );
1177
1178 if (NewPrivateFile->DirHandle == INVALID_HANDLE_VALUE) {
1179
1180 NewPrivateFile->DirHandle = NewPrivateFile->WinNtThunk->CreateFile (
1181 TempFileName,
1182 GENERIC_READ,
1183 FILE_SHARE_READ | FILE_SHARE_WRITE,
1184 NULL,
1185 OPEN_EXISTING,
1186 FILE_FLAG_BACKUP_SEMANTICS,
1187 NULL
1188 );
1189
1190 if (NewPrivateFile->DirHandle != INVALID_HANDLE_VALUE) {
1191 NewPrivateFile->WinNtThunk->CloseHandle (NewPrivateFile->DirHandle);
1192 NewPrivateFile->DirHandle = INVALID_HANDLE_VALUE;
1193 Status = EFI_ACCESS_DENIED;
1194 } else {
1195 Status = EFI_NOT_FOUND;
1196 }
1197
1198 FreePool (TempFileName);
1199 goto Done;
1200 }
1201
1202 //
1203 // Find the first file under it
1204 //
1205 StrCat (TempFileName, L"\\*");
1206 NewPrivateFile->LHandle = NewPrivateFile->WinNtThunk->FindFirstFile (TempFileName, &NewPrivateFile->FindBuf);
1207 FreePool (TempFileName);
1208
1209 if (NewPrivateFile->LHandle == INVALID_HANDLE_VALUE) {
1210 NewPrivateFile->IsValidFindBuf = FALSE;
1211 } else {
1212 NewPrivateFile->IsValidFindBuf = TRUE;
1213 }
1214 } else {
1215 //
1216 // deal with file
1217 //
1218 if (!NewPrivateFile->IsOpenedByRead) {
1219 NewPrivateFile->LHandle = NewPrivateFile->WinNtThunk->CreateFile (
1220 NewPrivateFile->FileName,
1221 GENERIC_READ | GENERIC_WRITE,
1222 FILE_SHARE_READ | FILE_SHARE_WRITE,
1223 NULL,
1224 (OpenMode & EFI_FILE_MODE_CREATE) ? OPEN_ALWAYS : OPEN_EXISTING,
1225 0,
1226 NULL
1227 );
1228
1229 if (NewPrivateFile->LHandle == INVALID_HANDLE_VALUE) {
1230 NewPrivateFile->LHandle = NewPrivateFile->WinNtThunk->CreateFile (
1231 NewPrivateFile->FileName,
1232 GENERIC_READ,
1233 FILE_SHARE_READ | FILE_SHARE_WRITE,
1234 NULL,
1235 OPEN_EXISTING,
1236 0,
1237 NULL
1238 );
1239
1240 if (NewPrivateFile->LHandle == INVALID_HANDLE_VALUE) {
1241 Status = EFI_NOT_FOUND;
1242 } else {
1243 Status = EFI_ACCESS_DENIED;
1244 NewPrivateFile->WinNtThunk->CloseHandle (NewPrivateFile->LHandle);
1245 NewPrivateFile->LHandle = INVALID_HANDLE_VALUE;
1246 }
1247 }
1248 } else {
1249 NewPrivateFile->LHandle = NewPrivateFile->WinNtThunk->CreateFile (
1250 NewPrivateFile->FileName,
1251 GENERIC_READ,
1252 FILE_SHARE_READ | FILE_SHARE_WRITE,
1253 NULL,
1254 OPEN_EXISTING,
1255 0,
1256 NULL
1257 );
1258
1259 if (NewPrivateFile->LHandle == INVALID_HANDLE_VALUE) {
1260 Status = EFI_NOT_FOUND;
1261 }
1262 }
1263 }
1264
1265 if ((OpenMode & EFI_FILE_MODE_CREATE) && Status == EFI_SUCCESS) {
1266 //
1267 // Set the attribute
1268 //
1269 InfoSize = 0;
1270 Info = NULL;
1271
1272 Status = WinNtSimpleFileSystemGetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, &InfoSize, Info);
1273
1274 if (Status != EFI_BUFFER_TOO_SMALL) {
1275 Status = EFI_DEVICE_ERROR;
1276 goto Done;
1277 }
1278
1279 Info = AllocatePool (InfoSize);
1280 if (Info == NULL) {
1281 Status = EFI_OUT_OF_RESOURCES;
1282 goto Done;
1283 }
1284
1285 Status = WinNtSimpleFileSystemGetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, &InfoSize, Info);
1286
1287 if (EFI_ERROR (Status)) {
1288 FreePool (Info);
1289 goto Done;
1290 }
1291
1292 Info->Attribute = Attributes;
1293
1294 WinNtSimpleFileSystemSetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, InfoSize, Info);
1295 FreePool (Info);
1296 }
1297
1298 Done:
1299 FreePool (FileName);
1300
1301 if (EFI_ERROR (Status)) {
1302 if (NewPrivateFile) {
1303 if (NewPrivateFile->FileName) {
1304 FreePool (NewPrivateFile->FileName);
1305 }
1306
1307 if (NewPrivateFile->FilePath) {
1308 FreePool (NewPrivateFile->FilePath);
1309 }
1310
1311 FreePool (NewPrivateFile);
1312 }
1313 } else {
1314 *NewHandle = &NewPrivateFile->EfiFile;
1315 if (StrCmp (NewPrivateFile->FileName, PrivateRoot->FilePath) == 0) {
1316 NewPrivateFile->IsRootDirectory = TRUE;
1317 }
1318 }
1319
1320 return Status;
1321 }
1322
1323 EFI_STATUS
1324 EFIAPI
1325 WinNtSimpleFileSystemClose (
1326 IN EFI_FILE_PROTOCOL *This
1327 )
1328 /*++
1329
1330 Routine Description:
1331
1332 Close the specified file handle.
1333
1334 Arguments:
1335
1336 This - Pointer to a returned opened file handle.
1337
1338 Returns:
1339
1340 EFI_SUCCESS - The file handle has been closed.
1341
1342 --*/
1343 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
1344 {
1345 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
1346 EFI_TPL OldTpl;
1347
1348 if (This == NULL) {
1349 return EFI_INVALID_PARAMETER;
1350 }
1351
1352 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
1353
1354 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
1355
1356 if (PrivateFile->LHandle != INVALID_HANDLE_VALUE) {
1357 if (PrivateFile->IsDirectoryPath) {
1358 PrivateFile->WinNtThunk->FindClose (PrivateFile->LHandle);
1359 } else {
1360 PrivateFile->WinNtThunk->CloseHandle (PrivateFile->LHandle);
1361 }
1362
1363 PrivateFile->LHandle = INVALID_HANDLE_VALUE;
1364 }
1365
1366 if (PrivateFile->IsDirectoryPath && PrivateFile->DirHandle != INVALID_HANDLE_VALUE) {
1367 PrivateFile->WinNtThunk->CloseHandle (PrivateFile->DirHandle);
1368 PrivateFile->DirHandle = INVALID_HANDLE_VALUE;
1369 }
1370
1371 if (PrivateFile->FileName) {
1372 FreePool (PrivateFile->FileName);
1373 }
1374
1375 if (PrivateFile->FilePath) {
1376 FreePool (PrivateFile->FilePath);
1377 }
1378
1379 FreePool (PrivateFile);
1380
1381 gBS->RestoreTPL (OldTpl);
1382
1383 return EFI_SUCCESS;
1384 }
1385
1386 EFI_STATUS
1387 EFIAPI
1388 WinNtSimpleFileSystemDelete (
1389 IN EFI_FILE_PROTOCOL *This
1390 )
1391 /*++
1392
1393 Routine Description:
1394
1395 Close and delete a file.
1396
1397 Arguments:
1398
1399 This - Pointer to a returned opened file handle.
1400
1401 Returns:
1402
1403 EFI_SUCCESS - The file handle was closed and deleted.
1404
1405 EFI_WARN_DELETE_FAILURE - The handle was closed but could not be deleted.
1406
1407 --*/
1408 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
1409 {
1410 EFI_STATUS Status;
1411 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
1412 EFI_TPL OldTpl;
1413
1414 if (This == NULL) {
1415 return EFI_INVALID_PARAMETER;
1416 }
1417
1418 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
1419
1420 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
1421
1422 Status = EFI_WARN_DELETE_FAILURE;
1423
1424 if (PrivateFile->IsDirectoryPath) {
1425 if (PrivateFile->LHandle != INVALID_HANDLE_VALUE) {
1426 PrivateFile->WinNtThunk->FindClose (PrivateFile->LHandle);
1427 }
1428
1429 if (PrivateFile->DirHandle != INVALID_HANDLE_VALUE) {
1430 PrivateFile->WinNtThunk->CloseHandle (PrivateFile->DirHandle);
1431 PrivateFile->DirHandle = INVALID_HANDLE_VALUE;
1432 }
1433
1434 if (PrivateFile->WinNtThunk->RemoveDirectory (PrivateFile->FileName)) {
1435 Status = EFI_SUCCESS;
1436 }
1437 } else {
1438 PrivateFile->WinNtThunk->CloseHandle (PrivateFile->LHandle);
1439 PrivateFile->LHandle = INVALID_HANDLE_VALUE;
1440
1441 if (!PrivateFile->IsOpenedByRead) {
1442 if (PrivateFile->WinNtThunk->DeleteFile (PrivateFile->FileName)) {
1443 Status = EFI_SUCCESS;
1444 }
1445 }
1446 }
1447
1448 FreePool (PrivateFile->FileName);
1449 FreePool (PrivateFile->FilePath);
1450 FreePool (PrivateFile);
1451
1452 gBS->RestoreTPL (OldTpl);
1453
1454 return Status;
1455 }
1456
1457 VOID
1458 WinNtSystemTimeToEfiTime (
1459 IN SYSTEMTIME *SystemTime,
1460 IN TIME_ZONE_INFORMATION *TimeZone,
1461 OUT EFI_TIME *Time
1462 )
1463 /*++
1464
1465 Routine Description:
1466
1467 TODO: Add function description
1468
1469 Arguments:
1470
1471 SystemTime - TODO: add argument description
1472 TimeZone - TODO: add argument description
1473 Time - TODO: add argument description
1474
1475 Returns:
1476
1477 TODO: add return values
1478
1479 --*/
1480 {
1481 Time->Year = (UINT16) SystemTime->wYear;
1482 Time->Month = (UINT8) SystemTime->wMonth;
1483 Time->Day = (UINT8) SystemTime->wDay;
1484 Time->Hour = (UINT8) SystemTime->wHour;
1485 Time->Minute = (UINT8) SystemTime->wMinute;
1486 Time->Second = (UINT8) SystemTime->wSecond;
1487 Time->Nanosecond = (UINT32) SystemTime->wMilliseconds * 1000000;
1488 Time->TimeZone = (INT16) TimeZone->Bias;
1489
1490 if (TimeZone->StandardDate.wMonth) {
1491 Time->Daylight = EFI_TIME_ADJUST_DAYLIGHT;
1492 }
1493 }
1494
1495 /**
1496 Convert the FileTime to EfiTime.
1497
1498 @param PrivateFile Pointer to WIN_NT_EFI_FILE_PRIVATE.
1499 @param TimeZone Pointer to the current time zone.
1500 @param FileTime Pointer to file time.
1501 @param EfiTime Pointer to EFI time.
1502 **/
1503 VOID
1504 WinNtFileTimeToEfiTime (
1505 IN CONST WIN_NT_EFI_FILE_PRIVATE *PrivateFile,
1506 IN TIME_ZONE_INFORMATION *TimeZone,
1507 IN CONST FILETIME *FileTime,
1508 OUT EFI_TIME *EfiTime
1509 )
1510 {
1511 FILETIME TempFileTime;
1512 SYSTEMTIME SystemTime;
1513
1514 PrivateFile->WinNtThunk->FileTimeToLocalFileTime (FileTime, &TempFileTime);
1515 PrivateFile->WinNtThunk->FileTimeToSystemTime (&TempFileTime, &SystemTime);
1516 WinNtSystemTimeToEfiTime (&SystemTime, TimeZone, EfiTime);
1517 }
1518
1519 EFI_STATUS
1520 EFIAPI
1521 WinNtSimpleFileSystemRead (
1522 IN EFI_FILE_PROTOCOL *This,
1523 IN OUT UINTN *BufferSize,
1524 OUT VOID *Buffer
1525 )
1526 /*++
1527
1528 Routine Description:
1529
1530 Read data from a file.
1531
1532 Arguments:
1533
1534 This - Pointer to a returned open file handle.
1535
1536 BufferSize - On input, the size of the Buffer. On output, the number of bytes stored in the Buffer.
1537
1538 Buffer - Pointer to the first byte of the read Buffer.
1539
1540 Returns:
1541
1542 EFI_SUCCESS - The data was read.
1543
1544 EFI_NO_MEDIA - The device has no media.
1545
1546 EFI_DEVICE_ERROR - The device reported an error.
1547
1548 EFI_VOLUME_CORRUPTED - The file system structures are corrupted.
1549
1550 EFI_BUFFER_TOO_SMALL - The supplied buffer size was too small to store the current directory entry.
1551 *BufferSize has been updated with the size needed to complete the request.
1552
1553 --*/
1554 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
1555 {
1556 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
1557 EFI_STATUS Status;
1558 UINTN Size;
1559 UINTN NameSize;
1560 UINTN ResultSize;
1561 UINTN Index;
1562 EFI_FILE_INFO *Info;
1563 WCHAR *pw;
1564 TIME_ZONE_INFORMATION TimeZone;
1565 EFI_FILE_INFO *FileInfo;
1566 UINT64 Pos;
1567 UINT64 FileSize;
1568 UINTN FileInfoSize;
1569 EFI_TPL OldTpl;
1570
1571 if (This == NULL || BufferSize == NULL) {
1572 return EFI_INVALID_PARAMETER;
1573 }
1574
1575 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
1576
1577 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
1578
1579 if (PrivateFile->LHandle == INVALID_HANDLE_VALUE) {
1580 Status = EFI_DEVICE_ERROR;
1581 goto Done;
1582 }
1583
1584 if (!PrivateFile->IsDirectoryPath) {
1585
1586 if (This->GetPosition (This, &Pos) != EFI_SUCCESS) {
1587 Status = EFI_DEVICE_ERROR;
1588 goto Done;
1589 }
1590
1591 FileInfoSize = SIZE_OF_EFI_FILE_SYSTEM_INFO;
1592 FileInfo = AllocatePool (FileInfoSize);
1593
1594 Status = This->GetInfo (
1595 This,
1596 &gEfiFileInfoGuid,
1597 &FileInfoSize,
1598 FileInfo
1599 );
1600
1601 if (Status == EFI_BUFFER_TOO_SMALL) {
1602 FreePool (FileInfo);
1603 FileInfo = AllocatePool (FileInfoSize);
1604 Status = This->GetInfo (
1605 This,
1606 &gEfiFileInfoGuid,
1607 &FileInfoSize,
1608 FileInfo
1609 );
1610 }
1611
1612 if (EFI_ERROR (Status)) {
1613 Status = EFI_DEVICE_ERROR;
1614 goto Done;
1615 }
1616
1617 FileSize = FileInfo->FileSize;
1618
1619 FreePool (FileInfo);
1620
1621 if (Pos >= FileSize) {
1622 *BufferSize = 0;
1623 if (Pos == FileSize) {
1624 Status = EFI_SUCCESS;
1625 goto Done;
1626 } else {
1627 Status = EFI_DEVICE_ERROR;
1628 goto Done;
1629 }
1630 }
1631
1632 Status = PrivateFile->WinNtThunk->ReadFile (
1633 PrivateFile->LHandle,
1634 Buffer,
1635 (DWORD)*BufferSize,
1636 (LPDWORD)BufferSize,
1637 NULL
1638 ) ? EFI_SUCCESS : EFI_DEVICE_ERROR;
1639 goto Done;
1640 }
1641
1642 //
1643 // Read on a directory. Perform a find next
1644 //
1645 if (!PrivateFile->IsValidFindBuf) {
1646 *BufferSize = 0;
1647 Status = EFI_SUCCESS;
1648 goto Done;
1649 }
1650
1651 Size = SIZE_OF_EFI_FILE_INFO;
1652
1653 NameSize = StrSize (PrivateFile->FindBuf.cFileName);
1654
1655 ResultSize = Size + NameSize;
1656
1657 Status = EFI_BUFFER_TOO_SMALL;
1658
1659 if (*BufferSize >= ResultSize) {
1660 Status = EFI_SUCCESS;
1661
1662 Info = Buffer;
1663 ZeroMem (Info, ResultSize);
1664
1665 Info->Size = ResultSize;
1666
1667 PrivateFile->WinNtThunk->GetTimeZoneInformation (&TimeZone);
1668 WinNtFileTimeToEfiTime (PrivateFile, &TimeZone, &PrivateFile->FindBuf.ftCreationTime, &Info->CreateTime);
1669 WinNtFileTimeToEfiTime (PrivateFile, &TimeZone, &PrivateFile->FindBuf.ftLastAccessTime, &Info->LastAccessTime);
1670 WinNtFileTimeToEfiTime (PrivateFile, &TimeZone, &PrivateFile->FindBuf.ftLastWriteTime, &Info->ModificationTime);
1671
1672 Info->FileSize = PrivateFile->FindBuf.nFileSizeLow;
1673
1674 Info->PhysicalSize = PrivateFile->FindBuf.nFileSizeLow;
1675
1676 if (PrivateFile->FindBuf.dwFileAttributes & FILE_ATTRIBUTE_ARCHIVE) {
1677 Info->Attribute |= EFI_FILE_ARCHIVE;
1678 }
1679
1680 if (PrivateFile->FindBuf.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) {
1681 Info->Attribute |= EFI_FILE_HIDDEN;
1682 }
1683
1684 if (PrivateFile->FindBuf.dwFileAttributes & FILE_ATTRIBUTE_SYSTEM) {
1685 Info->Attribute |= EFI_FILE_SYSTEM;
1686 }
1687
1688 if (PrivateFile->FindBuf.dwFileAttributes & FILE_ATTRIBUTE_READONLY) {
1689 Info->Attribute |= EFI_FILE_READ_ONLY;
1690 }
1691
1692 if (PrivateFile->FindBuf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
1693 Info->Attribute |= EFI_FILE_DIRECTORY;
1694 }
1695
1696 NameSize = NameSize / sizeof (WCHAR);
1697
1698 pw = (WCHAR *) (((CHAR8 *) Buffer) + Size);
1699
1700 for (Index = 0; Index < NameSize; Index++) {
1701 pw[Index] = PrivateFile->FindBuf.cFileName[Index];
1702 }
1703
1704 if (PrivateFile->WinNtThunk->FindNextFile (PrivateFile->LHandle, &PrivateFile->FindBuf)) {
1705 PrivateFile->IsValidFindBuf = TRUE;
1706 } else {
1707 PrivateFile->IsValidFindBuf = FALSE;
1708 }
1709 }
1710
1711 *BufferSize = ResultSize;
1712
1713 Done:
1714 gBS->RestoreTPL (OldTpl);
1715 return Status;
1716 }
1717
1718 EFI_STATUS
1719 EFIAPI
1720 WinNtSimpleFileSystemWrite (
1721 IN EFI_FILE_PROTOCOL *This,
1722 IN OUT UINTN *BufferSize,
1723 IN VOID *Buffer
1724 )
1725 /*++
1726
1727 Routine Description:
1728
1729 Write data to a file.
1730
1731 Arguments:
1732
1733 This - Pointer to an opened file handle.
1734
1735 BufferSize - On input, the number of bytes in the Buffer to write to the file. On output, the number of bytes
1736 of data written to the file.
1737
1738 Buffer - Pointer to the first by of data in the buffer to write to the file.
1739
1740 Returns:
1741
1742 EFI_SUCCESS - The data was written to the file.
1743
1744 EFI_UNSUPPORTED - Writes to an open directory are not supported.
1745
1746 EFI_NO_MEDIA - The device has no media.
1747
1748 EFI_DEVICE_ERROR - The device reported an error.
1749
1750 EFI_VOLUME_CORRUPTED - The file system structures are corrupt.
1751
1752 EFI_WRITE_PROTECTED - The file, directory, volume, or device is write protected.
1753
1754 EFI_ACCESS_DENIED - The file was opened read-only.
1755
1756 EFI_VOLUME_FULL - The volume is full.
1757
1758 --*/
1759 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
1760 {
1761 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
1762 EFI_STATUS Status;
1763 EFI_TPL OldTpl;
1764
1765 if (This == NULL || BufferSize == NULL || Buffer == NULL) {
1766 return EFI_INVALID_PARAMETER;
1767 }
1768
1769 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
1770
1771 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
1772
1773 if (PrivateFile->LHandle == INVALID_HANDLE_VALUE) {
1774 Status = EFI_DEVICE_ERROR;
1775 goto Done;
1776 }
1777
1778 if (PrivateFile->IsDirectoryPath) {
1779 Status = EFI_UNSUPPORTED;
1780 goto Done;
1781 }
1782
1783 if (PrivateFile->IsOpenedByRead) {
1784 Status = EFI_ACCESS_DENIED;
1785 goto Done;
1786 }
1787
1788 Status = PrivateFile->WinNtThunk->WriteFile (
1789 PrivateFile->LHandle,
1790 Buffer,
1791 (DWORD)*BufferSize,
1792 (LPDWORD)BufferSize,
1793 NULL
1794 ) ? EFI_SUCCESS : EFI_DEVICE_ERROR;
1795
1796 Done:
1797 gBS->RestoreTPL (OldTpl);
1798 return Status;
1799
1800 //
1801 // bugbug: need to access windows error reporting
1802 //
1803 }
1804
1805 EFI_STATUS
1806 EFIAPI
1807 WinNtSimpleFileSystemSetPosition (
1808 IN EFI_FILE_PROTOCOL *This,
1809 IN UINT64 Position
1810 )
1811 /*++
1812
1813 Routine Description:
1814
1815 Set a file's current position.
1816
1817 Arguments:
1818
1819 This - Pointer to an opened file handle.
1820
1821 Position - The byte position from the start of the file to set.
1822
1823 Returns:
1824
1825 EFI_SUCCESS - The file position has been changed.
1826
1827 EFI_UNSUPPORTED - The seek request for non-zero is not supported for directories.
1828
1829 --*/
1830 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
1831 {
1832 EFI_STATUS Status;
1833 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
1834 UINT32 PosLow;
1835 UINT32 PosHigh;
1836 CHAR16 *FileName;
1837 EFI_TPL OldTpl;
1838 UINTN Size;
1839
1840 if (This == NULL) {
1841 return EFI_INVALID_PARAMETER;
1842 }
1843
1844 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
1845
1846 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
1847
1848 if (PrivateFile->IsDirectoryPath) {
1849 if (Position != 0) {
1850 Status = EFI_UNSUPPORTED;
1851 goto Done;
1852 }
1853
1854 Size = StrSize (PrivateFile->FileName);
1855 Size += StrSize (L"\\*");
1856 FileName = AllocatePool (Size);
1857 if (FileName == NULL) {
1858 Status = EFI_OUT_OF_RESOURCES;
1859 goto Done;
1860 }
1861
1862 StrCpy (FileName, PrivateFile->FileName);
1863 StrCat (FileName, L"\\*");
1864
1865 if (PrivateFile->LHandle != INVALID_HANDLE_VALUE) {
1866 PrivateFile->WinNtThunk->FindClose (PrivateFile->LHandle);
1867 }
1868
1869 PrivateFile->LHandle = PrivateFile->WinNtThunk->FindFirstFile (FileName, &PrivateFile->FindBuf);
1870
1871 if (PrivateFile->LHandle == INVALID_HANDLE_VALUE) {
1872 PrivateFile->IsValidFindBuf = FALSE;
1873 } else {
1874 PrivateFile->IsValidFindBuf = TRUE;
1875 }
1876
1877 FreePool (FileName);
1878
1879 Status = (PrivateFile->LHandle == INVALID_HANDLE_VALUE) ? EFI_DEVICE_ERROR : EFI_SUCCESS;
1880 } else {
1881 if (Position == (UINT64) -1) {
1882 PosLow = PrivateFile->WinNtThunk->SetFilePointer (PrivateFile->LHandle, (ULONG) 0, NULL, FILE_END);
1883 } else {
1884 PosHigh = (UINT32) RShiftU64 (Position, 32);
1885
1886 PosLow = PrivateFile->WinNtThunk->SetFilePointer (PrivateFile->LHandle, (ULONG) Position, (PLONG)&PosHigh, FILE_BEGIN);
1887 }
1888
1889 Status = (PosLow == 0xFFFFFFFF) ? EFI_DEVICE_ERROR : EFI_SUCCESS;
1890 }
1891
1892 Done:
1893 gBS->RestoreTPL (OldTpl);
1894 return Status;
1895 }
1896
1897 EFI_STATUS
1898 EFIAPI
1899 WinNtSimpleFileSystemGetPosition (
1900 IN EFI_FILE_PROTOCOL *This,
1901 OUT UINT64 *Position
1902 )
1903 /*++
1904
1905 Routine Description:
1906
1907 Get a file's current position.
1908
1909 Arguments:
1910
1911 This - Pointer to an opened file handle.
1912
1913 Position - Pointer to storage for the current position.
1914
1915 Returns:
1916
1917 EFI_SUCCESS - The file position has been reported.
1918
1919 EFI_UNSUPPORTED - Not valid for directories.
1920
1921 --*/
1922 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
1923 {
1924 EFI_STATUS Status;
1925 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
1926 INT32 PositionHigh;
1927 UINT64 PosHigh64;
1928 EFI_TPL OldTpl;
1929
1930 if (This == NULL || Position == NULL) {
1931 return EFI_INVALID_PARAMETER;
1932 }
1933
1934 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
1935 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
1936
1937 PositionHigh = 0;
1938 PosHigh64 = 0;
1939
1940 if (PrivateFile->IsDirectoryPath) {
1941
1942 Status = EFI_UNSUPPORTED;
1943 goto Done;
1944
1945 } else {
1946
1947 PositionHigh = 0;
1948 *Position = PrivateFile->WinNtThunk->SetFilePointer (
1949 PrivateFile->LHandle,
1950 0,
1951 (PLONG)&PositionHigh,
1952 FILE_CURRENT
1953 );
1954
1955 Status = *Position == 0xffffffff ? EFI_DEVICE_ERROR : EFI_SUCCESS;
1956 if (EFI_ERROR (Status)) {
1957 goto Done;
1958 }
1959
1960 PosHigh64 = PositionHigh;
1961 *Position += LShiftU64 (PosHigh64, 32);
1962 }
1963
1964 Done:
1965 gBS->RestoreTPL (OldTpl);
1966 return Status;
1967 }
1968
1969 EFI_STATUS
1970 WinNtSimpleFileSystemFileInfo (
1971 IN WIN_NT_EFI_FILE_PRIVATE *PrivateFile,
1972 IN OUT UINTN *BufferSize,
1973 OUT VOID *Buffer
1974 )
1975 /*++
1976
1977 Routine Description:
1978
1979 TODO: Add function description
1980
1981 Arguments:
1982
1983 PrivateFile - TODO: add argument description
1984 BufferSize - TODO: add argument description
1985 Buffer - TODO: add argument description
1986
1987 Returns:
1988
1989 TODO: add return values
1990
1991 --*/
1992 {
1993 EFI_STATUS Status;
1994 UINTN Size;
1995 UINTN NameSize;
1996 UINTN ResultSize;
1997 EFI_FILE_INFO *Info;
1998 BY_HANDLE_FILE_INFORMATION FileInfo;
1999 CHAR16 *RealFileName;
2000 CHAR16 *TempPointer;
2001 TIME_ZONE_INFORMATION TimeZone;
2002
2003 Size = SIZE_OF_EFI_FILE_INFO;
2004
2005 RealFileName = PrivateFile->FileName;
2006 TempPointer = RealFileName;
2007 while (*TempPointer) {
2008 if (*TempPointer == '\\') {
2009 RealFileName = TempPointer + 1;
2010 }
2011
2012 TempPointer++;
2013 }
2014 NameSize = StrSize (RealFileName);
2015
2016 ResultSize = Size + NameSize;
2017
2018 Status = EFI_BUFFER_TOO_SMALL;
2019 if (*BufferSize >= ResultSize) {
2020 Status = EFI_SUCCESS;
2021
2022 Info = Buffer;
2023 ZeroMem (Info, ResultSize);
2024
2025 Info->Size = ResultSize;
2026 PrivateFile->WinNtThunk->GetFileInformationByHandle (
2027 PrivateFile->IsDirectoryPath ? PrivateFile->DirHandle : PrivateFile->LHandle,
2028 &FileInfo
2029 );
2030 Info->FileSize = FileInfo.nFileSizeLow;
2031 Info->PhysicalSize = Info->FileSize;
2032
2033 PrivateFile->WinNtThunk->GetTimeZoneInformation (&TimeZone);
2034 WinNtFileTimeToEfiTime (PrivateFile, &TimeZone, &FileInfo.ftCreationTime, &Info->CreateTime);
2035 WinNtFileTimeToEfiTime (PrivateFile, &TimeZone, &FileInfo.ftLastAccessTime, &Info->LastAccessTime);
2036 WinNtFileTimeToEfiTime (PrivateFile, &TimeZone, &FileInfo.ftLastWriteTime, &Info->ModificationTime);
2037
2038 if (FileInfo.dwFileAttributes & FILE_ATTRIBUTE_ARCHIVE) {
2039 Info->Attribute |= EFI_FILE_ARCHIVE;
2040 }
2041
2042 if (FileInfo.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) {
2043 Info->Attribute |= EFI_FILE_HIDDEN;
2044 }
2045
2046 if (FileInfo.dwFileAttributes & FILE_ATTRIBUTE_READONLY) {
2047 Info->Attribute |= EFI_FILE_READ_ONLY;
2048 }
2049
2050 if (FileInfo.dwFileAttributes & FILE_ATTRIBUTE_SYSTEM) {
2051 Info->Attribute |= EFI_FILE_SYSTEM;
2052 }
2053
2054 if (FileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
2055 Info->Attribute |= EFI_FILE_DIRECTORY;
2056 }
2057
2058 if (PrivateFile->IsDirectoryPath) {
2059 Info->Attribute |= EFI_FILE_DIRECTORY;
2060 }
2061
2062 if (PrivateFile->IsRootDirectory) {
2063 *((CHAR8 *) Buffer + Size) = 0;
2064 } else {
2065 CopyMem ((CHAR8 *) Buffer + Size, RealFileName, NameSize);
2066 }
2067 }
2068
2069 *BufferSize = ResultSize;
2070 return Status;
2071 }
2072
2073 EFI_STATUS
2074 EFIAPI
2075 WinNtSimpleFileSystemGetInfo (
2076 IN EFI_FILE_PROTOCOL *This,
2077 IN EFI_GUID *InformationType,
2078 IN OUT UINTN *BufferSize,
2079 OUT VOID *Buffer
2080 )
2081 /*++
2082
2083 Routine Description:
2084
2085 Return information about a file or volume.
2086
2087 Arguments:
2088
2089 This - Pointer to an opened file handle.
2090
2091 InformationType - GUID describing the type of information to be returned.
2092
2093 BufferSize - On input, the size of the information buffer. On output, the number of bytes written to the
2094 information buffer.
2095
2096 Buffer - Pointer to the first byte of the information buffer.
2097
2098 Returns:
2099
2100 EFI_SUCCESS - The requested information has been written into the buffer.
2101
2102 EFI_UNSUPPORTED - The InformationType is not known.
2103
2104 EFI_NO_MEDIA - The device has no media.
2105
2106 EFI_DEVICE_ERROR - The device reported an error.
2107
2108 EFI_VOLUME_CORRUPTED - The file system structures are corrupt.
2109
2110 EFI_BUFFER_TOO_SMALL - The buffer size was too small to contain the requested information. The buffer size has
2111 been updated with the size needed to complete the requested operation.
2112
2113 --*/
2114 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
2115 {
2116 EFI_STATUS Status;
2117 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
2118 EFI_FILE_SYSTEM_INFO *FileSystemInfoBuffer;
2119 UINT32 SectorsPerCluster;
2120 UINT32 BytesPerSector;
2121 UINT32 FreeClusters;
2122 UINT32 TotalClusters;
2123 UINT32 BytesPerCluster;
2124 CHAR16 *DriveName;
2125 BOOLEAN DriveNameFound;
2126 BOOL NtStatus;
2127 UINTN Index;
2128 WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;
2129 EFI_TPL OldTpl;
2130
2131 if (This == NULL || InformationType == NULL || BufferSize == NULL) {
2132 return EFI_INVALID_PARAMETER;
2133 }
2134
2135 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
2136
2137 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
2138 PrivateRoot = WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);
2139
2140 Status = EFI_UNSUPPORTED;
2141
2142 if (CompareGuid (InformationType, &gEfiFileInfoGuid)) {
2143 Status = WinNtSimpleFileSystemFileInfo (PrivateFile, BufferSize, Buffer);
2144 }
2145
2146 if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {
2147 if (*BufferSize < SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel)) {
2148 *BufferSize = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel);
2149 Status = EFI_BUFFER_TOO_SMALL;
2150 goto Done;
2151 }
2152
2153 FileSystemInfoBuffer = (EFI_FILE_SYSTEM_INFO *) Buffer;
2154 FileSystemInfoBuffer->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel);
2155 FileSystemInfoBuffer->ReadOnly = FALSE;
2156
2157 //
2158 // Try to get the drive name
2159 //
2160 DriveNameFound = FALSE;
2161 DriveName = AllocatePool (StrSize (PrivateFile->FilePath) + 1);
2162 if (DriveName == NULL) {
2163 Status = EFI_OUT_OF_RESOURCES;
2164 goto Done;
2165 }
2166
2167 StrCpy (DriveName, PrivateFile->FilePath);
2168 for (Index = 0; DriveName[Index] != 0 && DriveName[Index] != ':'; Index++) {
2169 ;
2170 }
2171
2172 if (DriveName[Index] == ':') {
2173 DriveName[Index + 1] = '\\';
2174 DriveName[Index + 2] = 0;
2175 DriveNameFound = TRUE;
2176 } else if (DriveName[0] == '\\' && DriveName[1] == '\\') {
2177 for (Index = 2; DriveName[Index] != 0 && DriveName[Index] != '\\'; Index++) {
2178 ;
2179 }
2180
2181 if (DriveName[Index] == '\\') {
2182 DriveNameFound = TRUE;
2183 for (Index++; DriveName[Index] != 0 && DriveName[Index] != '\\'; Index++) {
2184 ;
2185 }
2186
2187 DriveName[Index] = '\\';
2188 DriveName[Index + 1] = 0;
2189 }
2190 }
2191
2192 //
2193 // Try GetDiskFreeSpace first
2194 //
2195 NtStatus = PrivateFile->WinNtThunk->GetDiskFreeSpace (
2196 DriveNameFound ? DriveName : NULL,
2197 (LPDWORD)&SectorsPerCluster,
2198 (LPDWORD)&BytesPerSector,
2199 (LPDWORD)&FreeClusters,
2200 (LPDWORD)&TotalClusters
2201 );
2202 if (DriveName) {
2203 FreePool (DriveName);
2204 }
2205
2206 if (NtStatus) {
2207 //
2208 // Succeeded
2209 //
2210 BytesPerCluster = BytesPerSector * SectorsPerCluster;
2211 FileSystemInfoBuffer->VolumeSize = MultU64x32 (TotalClusters, BytesPerCluster);
2212 FileSystemInfoBuffer->FreeSpace = MultU64x32 (FreeClusters, BytesPerCluster);
2213 FileSystemInfoBuffer->BlockSize = BytesPerCluster;
2214
2215 } else {
2216 //
2217 // try GetDiskFreeSpaceEx then
2218 //
2219 FileSystemInfoBuffer->BlockSize = 0;
2220 NtStatus = PrivateFile->WinNtThunk->GetDiskFreeSpaceEx (
2221 PrivateFile->FilePath,
2222 (PULARGE_INTEGER) (&FileSystemInfoBuffer->FreeSpace),
2223 (PULARGE_INTEGER) (&FileSystemInfoBuffer->VolumeSize),
2224 NULL
2225 );
2226 if (!NtStatus) {
2227 Status = EFI_DEVICE_ERROR;
2228 goto Done;
2229 }
2230 }
2231
2232 StrCpy ((CHAR16 *) FileSystemInfoBuffer->VolumeLabel, PrivateRoot->VolumeLabel);
2233 *BufferSize = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel);
2234 Status = EFI_SUCCESS;
2235 }
2236
2237 if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) {
2238 if (*BufferSize < StrSize (PrivateRoot->VolumeLabel)) {
2239 *BufferSize = StrSize (PrivateRoot->VolumeLabel);
2240 Status = EFI_BUFFER_TOO_SMALL;
2241 goto Done;
2242 }
2243
2244 StrCpy ((CHAR16 *) Buffer, PrivateRoot->VolumeLabel);
2245 *BufferSize = StrSize (PrivateRoot->VolumeLabel);
2246 Status = EFI_SUCCESS;
2247 }
2248
2249 Done:
2250 gBS->RestoreTPL (OldTpl);
2251 return Status;
2252 }
2253
2254 EFI_STATUS
2255 EFIAPI
2256 WinNtSimpleFileSystemSetInfo (
2257 IN EFI_FILE_PROTOCOL*This,
2258 IN EFI_GUID *InformationType,
2259 IN UINTN BufferSize,
2260 IN VOID *Buffer
2261 )
2262 /*++
2263
2264 Routine Description:
2265
2266 Set information about a file or volume.
2267
2268 Arguments:
2269
2270 This - Pointer to an opened file handle.
2271
2272 InformationType - GUID identifying the type of information to set.
2273
2274 BufferSize - Number of bytes of data in the information buffer.
2275
2276 Buffer - Pointer to the first byte of data in the information buffer.
2277
2278 Returns:
2279
2280 EFI_SUCCESS - The file or volume information has been updated.
2281
2282 EFI_UNSUPPORTED - The information identifier is not recognised.
2283
2284 EFI_NO_MEDIA - The device has no media.
2285
2286 EFI_DEVICE_ERROR - The device reported an error.
2287
2288 EFI_VOLUME_CORRUPTED - The file system structures are corrupt.
2289
2290 EFI_WRITE_PROTECTED - The file, directory, volume, or device is write protected.
2291
2292 EFI_ACCESS_DENIED - The file was opened read-only.
2293
2294 EFI_VOLUME_FULL - The volume is full.
2295
2296 EFI_BAD_BUFFER_SIZE - The buffer size is smaller than the type indicated by InformationType.
2297
2298 --*/
2299 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
2300 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
2301 {
2302 WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;
2303 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
2304 EFI_FILE_INFO *OldFileInfo;
2305 EFI_FILE_INFO *NewFileInfo;
2306 EFI_STATUS Status;
2307 UINTN OldInfoSize;
2308 INTN NtStatus;
2309 UINT32 NewAttr;
2310 UINT32 OldAttr;
2311 CHAR16 *OldFileName;
2312 CHAR16 *NewFileName;
2313 CHAR16 *TempFileName;
2314 CHAR16 *CharPointer;
2315 BOOLEAN AttrChangeFlag;
2316 BOOLEAN NameChangeFlag;
2317 BOOLEAN SizeChangeFlag;
2318 BOOLEAN TimeChangeFlag;
2319 UINT64 CurPos;
2320 SYSTEMTIME NewCreationSystemTime;
2321 SYSTEMTIME NewLastAccessSystemTime;
2322 SYSTEMTIME NewLastWriteSystemTime;
2323 FILETIME NewCreationFileTime;
2324 FILETIME NewLastAccessFileTime;
2325 FILETIME NewLastWriteFileTime;
2326 WIN32_FIND_DATA FindBuf;
2327 EFI_FILE_SYSTEM_INFO *NewFileSystemInfo;
2328 EFI_TPL OldTpl;
2329 UINTN Size;
2330
2331 //
2332 // Check for invalid parameters.
2333 //
2334 if (This == NULL || InformationType == NULL || BufferSize == 0 || Buffer == NULL) {
2335 return EFI_INVALID_PARAMETER;
2336 }
2337
2338 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
2339
2340 //
2341 // Initialise locals.
2342 //
2343 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
2344 PrivateRoot = WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);
2345
2346 Status = EFI_UNSUPPORTED;
2347 OldFileInfo = NewFileInfo = NULL;
2348 OldFileName = NewFileName = NULL;
2349 AttrChangeFlag = NameChangeFlag = SizeChangeFlag = TimeChangeFlag = FALSE;
2350
2351 //
2352 // Set file system information.
2353 //
2354 if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {
2355 NewFileSystemInfo = (EFI_FILE_SYSTEM_INFO *) Buffer;
2356 if (BufferSize < SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (NewFileSystemInfo->VolumeLabel)) {
2357 Status = EFI_BAD_BUFFER_SIZE;
2358 goto Done;
2359 }
2360
2361
2362 FreePool (PrivateRoot->VolumeLabel);
2363 PrivateRoot->VolumeLabel = AllocatePool (StrSize (NewFileSystemInfo->VolumeLabel));
2364 if (PrivateRoot->VolumeLabel == NULL) {
2365 Status = EFI_OUT_OF_RESOURCES;
2366 goto Done;
2367 }
2368
2369 StrCpy (PrivateRoot->VolumeLabel, NewFileSystemInfo->VolumeLabel);
2370
2371 Status = EFI_SUCCESS;
2372 goto Done;
2373 }
2374
2375 //
2376 // Set volume label information.
2377 //
2378 if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) {
2379 if (BufferSize < StrSize (PrivateRoot->VolumeLabel)) {
2380 Status = EFI_BAD_BUFFER_SIZE;
2381 goto Done;
2382 }
2383
2384 StrCpy (PrivateRoot->VolumeLabel, (CHAR16 *) Buffer);
2385
2386 Status = EFI_SUCCESS;
2387 goto Done;
2388 }
2389
2390 if (!CompareGuid (InformationType, &gEfiFileInfoGuid)) {
2391 Status = EFI_UNSUPPORTED;
2392 goto Done;
2393 }
2394
2395 if (BufferSize < SIZE_OF_EFI_FILE_INFO) {
2396 Status = EFI_BAD_BUFFER_SIZE;
2397 goto Done;
2398 }
2399
2400 //
2401 // Set file/directory information.
2402 //
2403
2404 //
2405 // Check for invalid set file information parameters.
2406 //
2407 NewFileInfo = (EFI_FILE_INFO *) Buffer;
2408
2409 if ((NewFileInfo->Size <= SIZE_OF_EFI_FILE_INFO) ||
2410 (NewFileInfo->Attribute &~(EFI_FILE_VALID_ATTR)) ||
2411 (sizeof (UINTN) == 4 && NewFileInfo->Size > 0xFFFFFFFF)
2412 ) {
2413 Status = EFI_INVALID_PARAMETER;
2414 goto Done;
2415 }
2416
2417 //
2418 // bugbug: - This is not safe. We need something like EfiStrMaxSize()
2419 // that would have an additional parameter that would be the size
2420 // of the string array just in case there are no NULL characters in
2421 // the string array.
2422 //
2423 //
2424 // Get current file information so we can determine what kind
2425 // of change request this is.
2426 //
2427 OldInfoSize = 0;
2428 Status = WinNtSimpleFileSystemFileInfo (PrivateFile, &OldInfoSize, NULL);
2429
2430 if (Status != EFI_BUFFER_TOO_SMALL) {
2431 Status = EFI_DEVICE_ERROR;
2432 goto Done;
2433 }
2434
2435 OldFileInfo = AllocatePool (OldInfoSize);
2436 if (OldFileInfo == NULL) {
2437 Status = EFI_OUT_OF_RESOURCES;
2438 goto Done;
2439 }
2440
2441 Status = WinNtSimpleFileSystemFileInfo (PrivateFile, &OldInfoSize, OldFileInfo);
2442
2443 if (EFI_ERROR (Status)) {
2444 goto Done;
2445 }
2446
2447 OldFileName = AllocatePool (StrSize (PrivateFile->FileName));
2448 if (OldFileName == NULL) {
2449 Status = EFI_OUT_OF_RESOURCES;
2450 goto Done;
2451 }
2452
2453 StrCpy (OldFileName, PrivateFile->FileName);
2454
2455 //
2456 // Make full pathname from new filename and rootpath.
2457 //
2458 if (NewFileInfo->FileName[0] == '\\') {
2459 Size = StrSize (PrivateRoot->FilePath);
2460 Size += StrSize (L"\\");
2461 Size += StrSize (NewFileInfo->FileName);
2462 NewFileName = AllocatePool (Size);
2463 if (NewFileName == NULL) {
2464 Status = EFI_OUT_OF_RESOURCES;
2465 goto Done;
2466 }
2467
2468 StrCpy (NewFileName, PrivateRoot->FilePath);
2469 StrCat (NewFileName, L"\\");
2470 StrCat (NewFileName, NewFileInfo->FileName + 1);
2471 } else {
2472 Size = StrSize (PrivateFile->FilePath);
2473 Size += StrSize (L"\\");
2474 Size += StrSize (NewFileInfo->FileName);
2475 NewFileName = AllocatePool (Size);
2476 if (NewFileName == NULL) {
2477 Status = EFI_OUT_OF_RESOURCES;
2478 goto Done;
2479 }
2480
2481 StrCpy (NewFileName, PrivateFile->FilePath);
2482 StrCat (NewFileName, L"\\");
2483 StrCat (NewFileName, NewFileInfo->FileName);
2484 }
2485
2486 //
2487 // Is there an attribute change request?
2488 //
2489 if (NewFileInfo->Attribute != OldFileInfo->Attribute) {
2490 if ((NewFileInfo->Attribute & EFI_FILE_DIRECTORY) != (OldFileInfo->Attribute & EFI_FILE_DIRECTORY)) {
2491 Status = EFI_INVALID_PARAMETER;
2492 goto Done;
2493 }
2494
2495 AttrChangeFlag = TRUE;
2496 }
2497
2498 //
2499 // Is there a name change request?
2500 // bugbug: - Need EfiStrCaseCmp()
2501 //
2502 if (StrCmp (NewFileInfo->FileName, OldFileInfo->FileName)) {
2503 NameChangeFlag = TRUE;
2504 }
2505
2506 //
2507 // Is there a size change request?
2508 //
2509 if (NewFileInfo->FileSize != OldFileInfo->FileSize) {
2510 SizeChangeFlag = TRUE;
2511 }
2512
2513 //
2514 // Is there a time stamp change request?
2515 //
2516 if (!IsZero (&NewFileInfo->CreateTime, sizeof (EFI_TIME)) &&
2517 CompareMem (&NewFileInfo->CreateTime, &OldFileInfo->CreateTime, sizeof (EFI_TIME))
2518 ) {
2519 TimeChangeFlag = TRUE;
2520 } else if (!IsZero (&NewFileInfo->LastAccessTime, sizeof (EFI_TIME)) &&
2521 CompareMem (&NewFileInfo->LastAccessTime, &OldFileInfo->LastAccessTime, sizeof (EFI_TIME))
2522 ) {
2523 TimeChangeFlag = TRUE;
2524 } else if (!IsZero (&NewFileInfo->ModificationTime, sizeof (EFI_TIME)) &&
2525 CompareMem (&NewFileInfo->ModificationTime, &OldFileInfo->ModificationTime, sizeof (EFI_TIME))
2526 ) {
2527 TimeChangeFlag = TRUE;
2528 }
2529
2530 //
2531 // All done if there are no change requests being made.
2532 //
2533 if (!(AttrChangeFlag || NameChangeFlag || SizeChangeFlag || TimeChangeFlag)) {
2534 Status = EFI_SUCCESS;
2535 goto Done;
2536 }
2537
2538 //
2539 // Set file or directory information.
2540 //
2541 OldAttr = PrivateFile->WinNtThunk->GetFileAttributes (OldFileName);
2542
2543 //
2544 // Name change.
2545 //
2546 if (NameChangeFlag) {
2547 //
2548 // Close the handles first
2549 //
2550 if (PrivateFile->IsOpenedByRead) {
2551 Status = EFI_ACCESS_DENIED;
2552 goto Done;
2553 }
2554
2555 for (CharPointer = NewFileName; *CharPointer != 0 && *CharPointer != L'/'; CharPointer++) {
2556 }
2557
2558 if (*CharPointer != 0) {
2559 Status = EFI_ACCESS_DENIED;
2560 goto Done;
2561 }
2562
2563 if (PrivateFile->LHandle != INVALID_HANDLE_VALUE) {
2564 if (PrivateFile->IsDirectoryPath) {
2565 PrivateFile->WinNtThunk->FindClose (PrivateFile->LHandle);
2566 } else {
2567 PrivateFile->WinNtThunk->CloseHandle (PrivateFile->LHandle);
2568 PrivateFile->LHandle = INVALID_HANDLE_VALUE;
2569 }
2570 }
2571
2572 if (PrivateFile->IsDirectoryPath && PrivateFile->DirHandle != INVALID_HANDLE_VALUE) {
2573 PrivateFile->WinNtThunk->CloseHandle (PrivateFile->DirHandle);
2574 PrivateFile->DirHandle = INVALID_HANDLE_VALUE;
2575 }
2576
2577 NtStatus = PrivateFile->WinNtThunk->MoveFile (OldFileName, NewFileName);
2578
2579 if (NtStatus) {
2580 //
2581 // modify file name
2582 //
2583 FreePool (PrivateFile->FileName);
2584
2585 PrivateFile->FileName = AllocatePool (StrSize (NewFileName));
2586 if (PrivateFile->FileName == NULL) {
2587 Status = EFI_OUT_OF_RESOURCES;
2588 goto Done;
2589 }
2590
2591 StrCpy (PrivateFile->FileName, NewFileName);
2592
2593 Size = StrSize (NewFileName);
2594 Size += StrSize (L"\\*");
2595 TempFileName = AllocatePool (Size);
2596
2597 StrCpy (TempFileName, NewFileName);
2598
2599 if (!PrivateFile->IsDirectoryPath) {
2600 PrivateFile->LHandle = PrivateFile->WinNtThunk->CreateFile (
2601 TempFileName,
2602 PrivateFile->IsOpenedByRead ? GENERIC_READ : GENERIC_READ | GENERIC_WRITE,
2603 FILE_SHARE_READ | FILE_SHARE_WRITE,
2604 NULL,
2605 OPEN_EXISTING,
2606 0,
2607 NULL
2608 );
2609
2610 FreePool (TempFileName);
2611
2612 //
2613 // Flush buffers just in case
2614 //
2615 if (PrivateFile->WinNtThunk->FlushFileBuffers (PrivateFile->LHandle) == 0) {
2616 Status = EFI_DEVICE_ERROR;
2617 goto Done;
2618 }
2619 } else {
2620 PrivateFile->DirHandle = PrivateFile->WinNtThunk->CreateFile (
2621 TempFileName,
2622 PrivateFile->IsOpenedByRead ? GENERIC_READ : GENERIC_READ | GENERIC_WRITE,
2623 FILE_SHARE_READ | FILE_SHARE_WRITE,
2624 NULL,
2625 OPEN_EXISTING,
2626 FILE_FLAG_BACKUP_SEMANTICS,
2627 NULL
2628 );
2629
2630 StrCat (TempFileName, L"\\*");
2631 PrivateFile->LHandle = PrivateFile->WinNtThunk->FindFirstFile (TempFileName, &FindBuf);
2632
2633 FreePool (TempFileName);
2634 }
2635 } else {
2636 Status = EFI_ACCESS_DENIED;
2637 Reopen: ;
2638
2639 NtStatus = PrivateFile->WinNtThunk->SetFileAttributes (OldFileName, OldAttr);
2640
2641 if (!NtStatus) {
2642 goto Done;
2643 }
2644
2645 Size = StrSize (OldFileName);
2646 Size += StrSize (L"\\*");
2647 TempFileName = AllocatePool (Size);
2648
2649 StrCpy (TempFileName, OldFileName);
2650
2651 if (!PrivateFile->IsDirectoryPath) {
2652 PrivateFile->LHandle = PrivateFile->WinNtThunk->CreateFile (
2653 TempFileName,
2654 PrivateFile->IsOpenedByRead ? GENERIC_READ : GENERIC_READ | GENERIC_WRITE,
2655 FILE_SHARE_READ | FILE_SHARE_WRITE,
2656 NULL,
2657 OPEN_EXISTING,
2658 0,
2659 NULL
2660 );
2661 } else {
2662 PrivateFile->DirHandle = PrivateFile->WinNtThunk->CreateFile (
2663 TempFileName,
2664 PrivateFile->IsOpenedByRead ? GENERIC_READ : GENERIC_READ | GENERIC_WRITE,
2665 FILE_SHARE_READ | FILE_SHARE_WRITE,
2666 NULL,
2667 OPEN_EXISTING,
2668 FILE_FLAG_BACKUP_SEMANTICS,
2669 NULL
2670 );
2671
2672 StrCat (TempFileName, L"\\*");
2673 PrivateFile->LHandle = PrivateFile->WinNtThunk->FindFirstFile (TempFileName, &FindBuf);
2674 }
2675
2676 FreePool (TempFileName);
2677
2678 goto Done;
2679
2680 }
2681 }
2682
2683 //
2684 // Size change
2685 //
2686 if (SizeChangeFlag) {
2687 if (PrivateFile->IsDirectoryPath) {
2688 Status = EFI_UNSUPPORTED;
2689 goto Done;
2690 }
2691
2692 if (PrivateFile->IsOpenedByRead || OldFileInfo->Attribute & EFI_FILE_READ_ONLY) {
2693 Status = EFI_ACCESS_DENIED;
2694 goto Done;
2695 }
2696
2697 Status = This->GetPosition (This, &CurPos);
2698 if (EFI_ERROR (Status)) {
2699 goto Done;
2700 }
2701
2702 Status = This->SetPosition (This, NewFileInfo->FileSize);
2703 if (EFI_ERROR (Status)) {
2704 goto Done;
2705 }
2706
2707 if (PrivateFile->WinNtThunk->SetEndOfFile (PrivateFile->LHandle) == 0) {
2708 Status = EFI_DEVICE_ERROR;
2709 goto Done;
2710 }
2711
2712 Status = This->SetPosition (This, CurPos);
2713 if (EFI_ERROR (Status)) {
2714 goto Done;
2715 }
2716 }
2717
2718 //
2719 // Time change
2720 //
2721 if (TimeChangeFlag) {
2722
2723 NewCreationSystemTime.wYear = NewFileInfo->CreateTime.Year;
2724 NewCreationSystemTime.wMonth = NewFileInfo->CreateTime.Month;
2725 NewCreationSystemTime.wDay = NewFileInfo->CreateTime.Day;
2726 NewCreationSystemTime.wHour = NewFileInfo->CreateTime.Hour;
2727 NewCreationSystemTime.wMinute = NewFileInfo->CreateTime.Minute;
2728 NewCreationSystemTime.wSecond = NewFileInfo->CreateTime.Second;
2729 NewCreationSystemTime.wMilliseconds = 0;
2730
2731 if (!PrivateFile->WinNtThunk->SystemTimeToFileTime (
2732 &NewCreationSystemTime,
2733 &NewCreationFileTime
2734 )) {
2735 goto Done;
2736 }
2737
2738 if (!PrivateFile->WinNtThunk->LocalFileTimeToFileTime (
2739 &NewCreationFileTime,
2740 &NewCreationFileTime
2741 )) {
2742 goto Done;
2743 }
2744
2745 NewLastAccessSystemTime.wYear = NewFileInfo->LastAccessTime.Year;
2746 NewLastAccessSystemTime.wMonth = NewFileInfo->LastAccessTime.Month;
2747 NewLastAccessSystemTime.wDay = NewFileInfo->LastAccessTime.Day;
2748 NewLastAccessSystemTime.wHour = NewFileInfo->LastAccessTime.Hour;
2749 NewLastAccessSystemTime.wMinute = NewFileInfo->LastAccessTime.Minute;
2750 NewLastAccessSystemTime.wSecond = NewFileInfo->LastAccessTime.Second;
2751 NewLastAccessSystemTime.wMilliseconds = 0;
2752
2753 if (!PrivateFile->WinNtThunk->SystemTimeToFileTime (
2754 &NewLastAccessSystemTime,
2755 &NewLastAccessFileTime
2756 )) {
2757 goto Done;
2758 }
2759
2760 if (!PrivateFile->WinNtThunk->LocalFileTimeToFileTime (
2761 &NewLastAccessFileTime,
2762 &NewLastAccessFileTime
2763 )) {
2764 goto Done;
2765 }
2766
2767 NewLastWriteSystemTime.wYear = NewFileInfo->ModificationTime.Year;
2768 NewLastWriteSystemTime.wMonth = NewFileInfo->ModificationTime.Month;
2769 NewLastWriteSystemTime.wDay = NewFileInfo->ModificationTime.Day;
2770 NewLastWriteSystemTime.wHour = NewFileInfo->ModificationTime.Hour;
2771 NewLastWriteSystemTime.wMinute = NewFileInfo->ModificationTime.Minute;
2772 NewLastWriteSystemTime.wSecond = NewFileInfo->ModificationTime.Second;
2773 NewLastWriteSystemTime.wMilliseconds = 0;
2774
2775 if (!PrivateFile->WinNtThunk->SystemTimeToFileTime (
2776 &NewLastWriteSystemTime,
2777 &NewLastWriteFileTime
2778 )) {
2779 goto Done;
2780 }
2781
2782 if (!PrivateFile->WinNtThunk->LocalFileTimeToFileTime (
2783 &NewLastWriteFileTime,
2784 &NewLastWriteFileTime
2785 )) {
2786 goto Done;
2787 }
2788
2789 if (!PrivateFile->WinNtThunk->SetFileTime (
2790 PrivateFile->IsDirectoryPath ? PrivateFile->DirHandle : PrivateFile->LHandle,
2791 &NewCreationFileTime,
2792 &NewLastAccessFileTime,
2793 &NewLastWriteFileTime
2794 )) {
2795 Status = EFI_DEVICE_ERROR;
2796 goto Done;
2797 }
2798
2799 }
2800
2801 //
2802 // No matter about AttrChangeFlag, Attribute must be set.
2803 // Because operation before may cause attribute change.
2804 //
2805 NewAttr = OldAttr;
2806
2807 if (NewFileInfo->Attribute & EFI_FILE_ARCHIVE) {
2808 NewAttr |= FILE_ATTRIBUTE_ARCHIVE;
2809 } else {
2810 NewAttr &= ~FILE_ATTRIBUTE_ARCHIVE;
2811 }
2812
2813 if (NewFileInfo->Attribute & EFI_FILE_HIDDEN) {
2814 NewAttr |= FILE_ATTRIBUTE_HIDDEN;
2815 } else {
2816 NewAttr &= ~FILE_ATTRIBUTE_HIDDEN;
2817 }
2818
2819 if (NewFileInfo->Attribute & EFI_FILE_SYSTEM) {
2820 NewAttr |= FILE_ATTRIBUTE_SYSTEM;
2821 } else {
2822 NewAttr &= ~FILE_ATTRIBUTE_SYSTEM;
2823 }
2824
2825 if (NewFileInfo->Attribute & EFI_FILE_READ_ONLY) {
2826 NewAttr |= FILE_ATTRIBUTE_READONLY;
2827 } else {
2828 NewAttr &= ~FILE_ATTRIBUTE_READONLY;
2829 }
2830
2831 NtStatus = PrivateFile->WinNtThunk->SetFileAttributes (NewFileName, NewAttr);
2832
2833 if (!NtStatus) {
2834 Status = EFI_DEVICE_ERROR;
2835 goto Reopen;
2836 }
2837
2838 Done:
2839 if (OldFileInfo != NULL) {
2840 FreePool (OldFileInfo);
2841 }
2842
2843 if (OldFileName != NULL) {
2844 FreePool (OldFileName);
2845 }
2846
2847 if (NewFileName != NULL) {
2848 FreePool (NewFileName);
2849 }
2850
2851 gBS->RestoreTPL (OldTpl);
2852 return Status;
2853 }
2854
2855 EFI_STATUS
2856 EFIAPI
2857 WinNtSimpleFileSystemFlush (
2858 IN EFI_FILE_PROTOCOL *This
2859 )
2860 /*++
2861
2862 Routine Description:
2863
2864 Flush all modified data to the media.
2865
2866 Arguments:
2867
2868 This - Pointer to an opened file handle.
2869
2870 Returns:
2871
2872 EFI_SUCCESS - The data has been flushed.
2873
2874 EFI_NO_MEDIA - The device has no media.
2875
2876 EFI_DEVICE_ERROR - The device reported an error.
2877
2878 EFI_VOLUME_CORRUPTED - The file system structures have been corrupted.
2879
2880 EFI_WRITE_PROTECTED - The file, directory, volume, or device is write protected.
2881
2882 EFI_ACCESS_DENIED - The file was opened read-only.
2883
2884 EFI_VOLUME_FULL - The volume is full.
2885
2886 --*/
2887 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
2888 {
2889 BY_HANDLE_FILE_INFORMATION FileInfo;
2890 WIN_NT_EFI_FILE_PRIVATE *PrivateFile;
2891 EFI_STATUS Status;
2892 EFI_TPL OldTpl;
2893
2894 if (This == NULL) {
2895 return EFI_INVALID_PARAMETER;
2896 }
2897
2898 OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
2899
2900 PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);
2901
2902 if (PrivateFile->LHandle == INVALID_HANDLE_VALUE) {
2903 Status = EFI_DEVICE_ERROR;
2904 goto Done;
2905 }
2906
2907 if (PrivateFile->IsDirectoryPath) {
2908 Status = EFI_SUCCESS;
2909 goto Done;
2910 }
2911
2912 if (PrivateFile->IsOpenedByRead) {
2913 Status = EFI_ACCESS_DENIED;
2914 goto Done;
2915 }
2916
2917 PrivateFile->WinNtThunk->GetFileInformationByHandle (PrivateFile->LHandle, &FileInfo);
2918
2919 if (FileInfo.dwFileAttributes & FILE_ATTRIBUTE_READONLY) {
2920 Status = EFI_ACCESS_DENIED;
2921 goto Done;
2922 }
2923
2924 Status = PrivateFile->WinNtThunk->FlushFileBuffers (PrivateFile->LHandle) ? EFI_SUCCESS : EFI_DEVICE_ERROR;
2925
2926 Done:
2927 gBS->RestoreTPL (OldTpl);
2928 return Status;
2929 //
2930 // bugbug: - Use Windows error reporting.
2931 //
2932 }
2933
2934
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