Windows: Look for 8.3 name when doing a rename
[openafs.git] / src / WINNT / afsrdr / kernel / lib / AFSFileInfo.cpp
1 /*
2  * Copyright (c) 2008, 2009, 2010, 2011 Kernel Drivers, LLC.
3  * Copyright (c) 2009, 2010, 2011 Your File System, Inc.
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * - Redistributions of source code must retain the above copyright notice,
11  *   this list of conditions and the following disclaimer.
12  * - Redistributions in binary form must reproduce the above copyright
13  *   notice,
14  *   this list of conditions and the following disclaimer in the
15  *   documentation
16  *   and/or other materials provided with the distribution.
17  * - Neither the names of Kernel Drivers, LLC and Your File System, Inc.
18  *   nor the names of their contributors may be used to endorse or promote
19  *   products derived from this software without specific prior written
20  *   permission from Kernel Drivers, LLC and Your File System, Inc.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
23  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
25  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
26  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  */
34
35 //
36 // File: AFSFileInfo.cpp
37 //
38
39 #include "AFSCommon.h"
40
41 //
42 // Function: AFSQueryFileInfo
43 //
44 // Description:
45 //
46 //      This function is the dispatch handler for the IRP_MJ_QUERY_FILE_INFORMATION request
47 //
48 // Return:
49 //
50 //      A status is returned for the function
51 //
52
53 NTSTATUS
54 AFSQueryFileInfo( IN PDEVICE_OBJECT LibDeviceObject,
55                   IN PIRP Irp)
56 {
57
58     NTSTATUS ntStatus = STATUS_SUCCESS;
59     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
60     ULONG ulRequestType = 0;
61     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
62     AFSFcb *pFcb = NULL;
63     AFSCcb *pCcb = NULL;
64     PFILE_OBJECT pFileObject;
65     BOOLEAN bReleaseMain = FALSE;
66     LONG lLength;
67     FILE_INFORMATION_CLASS stFileInformationClass;
68     PVOID pBuffer;
69
70     __try
71     {
72
73         //
74         // Determine the type of request this request is
75         //
76
77         pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
78
79         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
80
81         if( pFcb == NULL)
82         {
83
84             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
85                           AFS_TRACE_LEVEL_ERROR,
86                           "AFSQueryFileInfo Attempted access (%08lX) when pFcb == NULL\n",
87                           Irp);
88
89             try_return( ntStatus = STATUS_INVALID_DEVICE_REQUEST);
90         }
91
92         lLength = (LONG)pIrpSp->Parameters.QueryFile.Length;
93         stFileInformationClass = pIrpSp->Parameters.QueryFile.FileInformationClass;
94         pBuffer = Irp->AssociatedIrp.SystemBuffer;
95
96         //
97         // Grab the main shared right off the bat
98         //
99
100         AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
101                       AFS_TRACE_LEVEL_VERBOSE,
102                       "AFSQueryFileInfo Acquiring Fcb lock %08lX SHARED %08lX\n",
103                       &pFcb->NPFcb->Resource,
104                       PsGetCurrentThread());
105
106         AFSAcquireShared( &pFcb->NPFcb->Resource,
107                           TRUE);
108
109         bReleaseMain = TRUE;
110
111         //
112         // Don't allow requests against IOCtl nodes
113         //
114
115         if( pFcb->Header.NodeTypeCode == AFS_SPECIAL_SHARE_FCB)
116         {
117
118             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
119                           AFS_TRACE_LEVEL_VERBOSE,
120                           "AFSQueryFileInfo Processing request against SpecialShare Fcb\n");
121
122             ntStatus = AFSProcessShareQueryInfo( Irp,
123                                                  pFcb,
124                                                  pCcb);
125
126             try_return( ntStatus);
127         }
128         else if( pFcb->Header.NodeTypeCode == AFS_IOCTL_FCB)
129         {
130             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
131                           AFS_TRACE_LEVEL_VERBOSE,
132                           "AFSQueryFileInfo request against PIOCtl Fcb\n");
133
134             ntStatus = AFSProcessPIOCtlQueryInfo( Irp,
135                                                   pFcb,
136                                                   pCcb,
137                                                   &lLength);
138
139             try_return( ntStatus);
140         }
141
142         //
143         // Process the request
144         //
145
146         switch( stFileInformationClass)
147         {
148
149             case FileAllInformation:
150             {
151
152                 PFILE_ALL_INFORMATION pAllInfo;
153
154                 //
155                 //  For the all information class we'll typecast a local
156                 //  pointer to the output buffer and then call the
157                 //  individual routines to fill in the buffer.
158                 //
159
160                 pAllInfo = (PFILE_ALL_INFORMATION)pBuffer;
161
162                 ntStatus = AFSQueryBasicInfo( Irp,
163                                               pCcb->DirectoryCB,
164                                               &pAllInfo->BasicInformation,
165                                               &lLength);
166
167                 if( !NT_SUCCESS( ntStatus))
168                 {
169
170                     try_return( ntStatus);
171                 }
172
173                 ntStatus = AFSQueryStandardInfo( Irp,
174                                                  pCcb->DirectoryCB,
175                                                  &pAllInfo->StandardInformation,
176                                                  &lLength);
177
178                 if( !NT_SUCCESS( ntStatus))
179                 {
180
181                     try_return( ntStatus);
182                 }
183
184                 ntStatus = AFSQueryInternalInfo( Irp,
185                                                  pFcb,
186                                                  &pAllInfo->InternalInformation,
187                                                  &lLength);
188
189                 if( !NT_SUCCESS( ntStatus))
190                 {
191
192                     try_return( ntStatus);
193                 }
194
195                 ntStatus = AFSQueryEaInfo( Irp,
196                                            pCcb->DirectoryCB,
197                                            &pAllInfo->EaInformation,
198                                            &lLength);
199
200                 if( !NT_SUCCESS( ntStatus))
201                 {
202
203                     try_return( ntStatus);
204                 }
205
206                 ntStatus = AFSQueryAccess( Irp,
207                                            pFcb,
208                                            &pAllInfo->AccessInformation,
209                                            &lLength);
210
211                 if( !NT_SUCCESS( ntStatus))
212                 {
213
214                     try_return( ntStatus);
215                 }
216
217                 ntStatus = AFSQueryPositionInfo( Irp,
218                                                  pFcb,
219                                                  &pAllInfo->PositionInformation,
220                                                  &lLength);
221
222                 if( !NT_SUCCESS( ntStatus))
223                 {
224
225                     try_return( ntStatus);
226                 }
227
228                 ntStatus = AFSQueryMode( Irp,
229                                          pFcb,
230                                          &pAllInfo->ModeInformation,
231                                          &lLength);
232
233                 if( !NT_SUCCESS( ntStatus))
234                 {
235
236                     try_return( ntStatus);
237                 }
238
239                 ntStatus = AFSQueryAlignment( Irp,
240                                               pFcb,
241                                               &pAllInfo->AlignmentInformation,
242                                               &lLength);
243
244                 if( !NT_SUCCESS( ntStatus))
245                 {
246
247                     try_return( ntStatus);
248                 }
249
250                 ntStatus = AFSQueryNameInfo( Irp,
251                                              pCcb->DirectoryCB,
252                                              &pAllInfo->NameInformation,
253                                              &lLength);
254
255                 if( !NT_SUCCESS( ntStatus))
256                 {
257
258                     try_return( ntStatus);
259                 }
260
261                 break;
262             }
263
264             case FileBasicInformation:
265             {
266
267                 ntStatus = AFSQueryBasicInfo( Irp,
268                                               pCcb->DirectoryCB,
269                                               (PFILE_BASIC_INFORMATION)pBuffer,
270                                               &lLength);
271
272                 break;
273             }
274
275             case FileStandardInformation:
276             {
277
278                 ntStatus = AFSQueryStandardInfo( Irp,
279                                                  pCcb->DirectoryCB,
280                                                  (PFILE_STANDARD_INFORMATION)pBuffer,
281                                                  &lLength);
282
283                 break;
284             }
285
286             case FileInternalInformation:
287             {
288
289                 ntStatus = AFSQueryInternalInfo( Irp,
290                                                  pFcb,
291                                                  (PFILE_INTERNAL_INFORMATION)pBuffer,
292                                                  &lLength);
293
294                 break;
295             }
296
297             case FileEaInformation:
298             {
299
300                 ntStatus = AFSQueryEaInfo( Irp,
301                                            pCcb->DirectoryCB,
302                                            (PFILE_EA_INFORMATION)pBuffer,
303                                            &lLength);
304
305                 break;
306             }
307
308             case FilePositionInformation:
309             {
310
311                 ntStatus = AFSQueryPositionInfo( Irp,
312                                       pFcb,
313                                       (PFILE_POSITION_INFORMATION)pBuffer,
314                                       &lLength);
315
316                 break;
317             }
318
319             case FileNameInformation:
320             {
321
322                 ntStatus = AFSQueryNameInfo( Irp,
323                                   pCcb->DirectoryCB,
324                                   (PFILE_NAME_INFORMATION)pBuffer,
325                                   &lLength);
326
327                 break;
328             }
329
330             case FileAlternateNameInformation:
331             {
332
333                 ntStatus = AFSQueryShortNameInfo( Irp,
334                                        pCcb->DirectoryCB,
335                                        (PFILE_NAME_INFORMATION)pBuffer,
336                                        &lLength);
337
338                 break;
339             }
340
341             case FileNetworkOpenInformation:
342             {
343
344                 ntStatus = AFSQueryNetworkInfo( Irp,
345                                      pCcb->DirectoryCB,
346                                      (PFILE_NETWORK_OPEN_INFORMATION)pBuffer,
347                                      &lLength);
348
349                 break;
350             }
351
352             case FileStreamInformation:
353             {
354
355                 ntStatus = AFSQueryStreamInfo( Irp,
356                                                pCcb->DirectoryCB,
357                                                (FILE_STREAM_INFORMATION *)pBuffer,
358                                                &lLength);
359
360                 break;
361             }
362
363
364             case FileAttributeTagInformation:
365             {
366
367                 ntStatus = AFSQueryAttribTagInfo( Irp,
368                                                   pCcb->DirectoryCB,
369                                                   (FILE_ATTRIBUTE_TAG_INFORMATION *)pBuffer,
370                                                   &lLength);
371
372                 break;
373             }
374
375             case FileRemoteProtocolInformation:
376             {
377
378                     ntStatus = AFSQueryRemoteProtocolInfo( Irp,
379                                                            pCcb->DirectoryCB,
380                                                            (FILE_REMOTE_PROTOCOL_INFORMATION *)pBuffer,
381                                                            &lLength);
382
383                 break;
384             }
385
386         default:
387
388                 ntStatus = STATUS_INVALID_PARAMETER;
389
390                 break;
391         }
392
393 try_exit:
394
395         Irp->IoStatus.Information = pIrpSp->Parameters.QueryFile.Length - lLength;
396
397         if( bReleaseMain)
398         {
399
400             AFSReleaseResource( &pFcb->NPFcb->Resource);
401         }
402
403         if( !NT_SUCCESS( ntStatus) &&
404             ntStatus != STATUS_INVALID_PARAMETER &&
405             ntStatus != STATUS_BUFFER_OVERFLOW)
406         {
407
408             if( pCcb != NULL &&
409                 pCcb->DirectoryCB != NULL)
410             {
411
412                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
413                               AFS_TRACE_LEVEL_ERROR,
414                               "AFSQueryFileInfo Failed to process request for %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
415                               &pCcb->DirectoryCB->NameInformation.FileName,
416                               pCcb->DirectoryCB->ObjectInformation->FileId.Cell,
417                               pCcb->DirectoryCB->ObjectInformation->FileId.Volume,
418                               pCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
419                               pCcb->DirectoryCB->ObjectInformation->FileId.Unique,
420                               ntStatus);
421             }
422         }
423     }
424     __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
425     {
426
427         AFSDbgLogMsg( 0,
428                       0,
429                       "EXCEPTION - AFSQueryFileInfo\n");
430
431         ntStatus = STATUS_UNSUCCESSFUL;
432
433         if( bReleaseMain)
434         {
435
436             AFSReleaseResource( &pFcb->NPFcb->Resource);
437         }
438     }
439
440     AFSCompleteRequest( Irp,
441                         ntStatus);
442
443     return ntStatus;
444 }
445
446 //
447 // Function: AFSSetFileInfo
448 //
449 // Description:
450 //
451 //      This function is the dispatch handler for the IRP_MJ_SET_FILE_INFORMATION request
452 //
453 // Return:
454 //
455 //      A status is returned for the function
456 //
457
458 NTSTATUS
459 AFSSetFileInfo( IN PDEVICE_OBJECT LibDeviceObject,
460                 IN PIRP Irp)
461 {
462
463     NTSTATUS ntStatus = STATUS_SUCCESS;
464     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
465     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
466     AFSFcb *pFcb = NULL;
467     AFSCcb *pCcb = NULL;
468     BOOLEAN bCompleteRequest = TRUE;
469     FILE_INFORMATION_CLASS FileInformationClass;
470     BOOLEAN bCanQueueRequest = FALSE;
471     PFILE_OBJECT pFileObject = NULL;
472     BOOLEAN bReleaseMain = FALSE;
473     BOOLEAN bUpdateFileInfo = FALSE;
474     AFSFileID stParentFileId;
475
476     __try
477     {
478
479         pFileObject = pIrpSp->FileObject;
480
481         pFcb = (AFSFcb *)pFileObject->FsContext;
482         pCcb = (AFSCcb *)pFileObject->FsContext2;
483
484         if( pFcb == NULL)
485         {
486
487             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
488                           AFS_TRACE_LEVEL_ERROR,
489                           "AFSSetFileInfo Attempted access (%08lX) when pFcb == NULL\n",
490                           Irp);
491
492             try_return( ntStatus = STATUS_INVALID_DEVICE_REQUEST);
493         }
494
495         bCanQueueRequest = !(IoIsOperationSynchronous( Irp) | (KeGetCurrentIrql() != PASSIVE_LEVEL));
496         FileInformationClass = pIrpSp->Parameters.SetFile.FileInformationClass;
497
498         //
499         // Grab the Fcb EXCL
500         //
501
502         AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
503                       AFS_TRACE_LEVEL_VERBOSE,
504                       "AFSSetFileInfo Acquiring Fcb lock %08lX EXCL %08lX\n",
505                       &pFcb->NPFcb->Resource,
506                       PsGetCurrentThread());
507
508         AFSAcquireExcl( &pFcb->NPFcb->Resource,
509                         TRUE);
510
511         bReleaseMain = TRUE;
512
513         //
514         // Don't allow requests against IOCtl nodes
515         //
516
517         if( pFcb->Header.NodeTypeCode == AFS_IOCTL_FCB)
518         {
519
520             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
521                           AFS_TRACE_LEVEL_ERROR,
522                           "AFSSetFileInfo Failing request against PIOCtl Fcb\n");
523
524             try_return( ntStatus = STATUS_INVALID_DEVICE_REQUEST);
525         }
526         else if( pFcb->Header.NodeTypeCode == AFS_SPECIAL_SHARE_FCB)
527         {
528
529             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
530                           AFS_TRACE_LEVEL_VERBOSE,
531                           "AFSSetFileInfo Processing request against SpecialShare Fcb\n");
532
533             ntStatus = AFSProcessShareSetInfo( Irp,
534                                                pFcb,
535                                                pCcb);
536
537             try_return( ntStatus);
538         }
539
540         if( BooleanFlagOn( pFcb->ObjectInformation->VolumeCB->VolumeInformation.Characteristics, FILE_READ_ONLY_DEVICE))
541         {
542
543             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
544                           AFS_TRACE_LEVEL_ERROR,
545                           "AFSSetFileInfo Request failed due to read only volume\n",
546                           Irp);
547
548             try_return( ntStatus = STATUS_ACCESS_DENIED);
549         }
550
551         //
552         // Ensure rename operations are synchronous
553         //
554
555         if( FileInformationClass == FileRenameInformation)
556         {
557
558             bCanQueueRequest = FALSE;
559         }
560
561         //
562         // Store away the parent fid
563         //
564
565         RtlZeroMemory( &stParentFileId,
566                        sizeof( AFSFileID));
567
568         if( pFcb->ObjectInformation->ParentObjectInformation != NULL)
569         {
570             stParentFileId = pFcb->ObjectInformation->ParentObjectInformation->FileId;
571         }
572
573         //
574         // Process the request
575         //
576
577         switch( FileInformationClass)
578         {
579
580             case FileBasicInformation:
581             {
582
583                 bUpdateFileInfo = TRUE;
584
585                 ntStatus = AFSSetBasicInfo( Irp,
586                                             pCcb->DirectoryCB);
587
588                 break;
589             }
590
591             case FileDispositionInformation:
592             {
593
594                 ntStatus = AFSSetDispositionInfo( Irp,
595                                                   pCcb->DirectoryCB);
596
597                 break;
598             }
599
600             case FileRenameInformation:
601             {
602
603                 ntStatus = AFSSetRenameInfo( Irp);
604
605                 break;
606             }
607
608             case FilePositionInformation:
609             {
610
611                 ntStatus = AFSSetPositionInfo( Irp,
612                                                pCcb->DirectoryCB);
613
614                 break;
615             }
616
617             case FileLinkInformation:
618             {
619
620                 ntStatus = STATUS_INVALID_DEVICE_REQUEST;
621
622                 break;
623             }
624
625             case FileAllocationInformation:
626             {
627
628                 ntStatus = AFSSetAllocationInfo( Irp,
629                                                  pCcb->DirectoryCB);
630
631                 break;
632             }
633
634             case FileEndOfFileInformation:
635             {
636
637                 ntStatus = AFSSetEndOfFileInfo( Irp,
638                                                 pCcb->DirectoryCB);
639
640                 break;
641             }
642
643             default:
644
645                 ntStatus = STATUS_INVALID_PARAMETER;
646
647                 break;
648         }
649
650 try_exit:
651
652         if( bReleaseMain)
653         {
654
655             AFSReleaseResource( &pFcb->NPFcb->Resource);
656         }
657
658         if( NT_SUCCESS( ntStatus) &&
659             bUpdateFileInfo)
660         {
661
662             ntStatus = AFSUpdateFileInformation( &stParentFileId,
663                                                  pFcb->ObjectInformation,
664                                                  &pFcb->AuthGroup);
665
666             if( !NT_SUCCESS( ntStatus))
667             {
668
669                 AFSAcquireExcl( &pFcb->NPFcb->Resource,
670                                 TRUE);
671
672                 //
673                 // Unwind the update and fail the request
674                 //
675
676                 AFSUnwindFileInfo( pFcb,
677                                    pCcb);
678
679                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
680                               AFS_TRACE_LEVEL_ERROR,
681                               "AFSSetFileInfo Failed to send file info update to service request for %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
682                               &pCcb->DirectoryCB->NameInformation.FileName,
683                               pCcb->DirectoryCB->ObjectInformation->FileId.Cell,
684                               pCcb->DirectoryCB->ObjectInformation->FileId.Volume,
685                               pCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
686                               pCcb->DirectoryCB->ObjectInformation->FileId.Unique,
687                               ntStatus);
688
689                 AFSReleaseResource( &pFcb->NPFcb->Resource);
690             }
691         }
692
693         if( !NT_SUCCESS( ntStatus))
694         {
695
696             if( pCcb != NULL &&
697                 pCcb->DirectoryCB != NULL)
698             {
699
700                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
701                               AFS_TRACE_LEVEL_ERROR,
702                               "AFSSetFileInfo Failed to process request for %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
703                               &pCcb->DirectoryCB->NameInformation.FileName,
704                               pCcb->DirectoryCB->ObjectInformation->FileId.Cell,
705                               pCcb->DirectoryCB->ObjectInformation->FileId.Volume,
706                               pCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
707                               pCcb->DirectoryCB->ObjectInformation->FileId.Unique,
708                               ntStatus);
709             }
710         }
711     }
712     __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
713     {
714
715         AFSDbgLogMsg( 0,
716                       0,
717                       "EXCEPTION - AFSSetFileInfo\n");
718
719         ntStatus = STATUS_UNSUCCESSFUL;
720     }
721
722     AFSCompleteRequest( Irp,
723                         ntStatus);
724
725     return ntStatus;
726 }
727
728 //
729 // Function: AFSQueryBasicInfo
730 //
731 // Description:
732 //
733 //      This function is the handler for the query basic information request
734 //
735 // Return:
736 //
737 //      A status is returned for the function
738 //
739
740 NTSTATUS
741 AFSQueryBasicInfo( IN PIRP Irp,
742                    IN AFSDirectoryCB *DirectoryCB,
743                    IN OUT PFILE_BASIC_INFORMATION Buffer,
744                    IN OUT PLONG Length)
745 {
746     NTSTATUS ntStatus = STATUS_SUCCESS;
747     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
748
749     if( *Length >= sizeof( FILE_BASIC_INFORMATION))
750     {
751
752         RtlZeroMemory( Buffer,
753                        *Length);
754
755         Buffer->CreationTime = DirectoryCB->ObjectInformation->CreationTime;
756         Buffer->LastAccessTime = DirectoryCB->ObjectInformation->LastAccessTime;
757         Buffer->LastWriteTime = DirectoryCB->ObjectInformation->LastWriteTime;
758         Buffer->ChangeTime = DirectoryCB->ObjectInformation->ChangeTime;
759         Buffer->FileAttributes = DirectoryCB->ObjectInformation->FileAttributes;
760
761         if( DirectoryCB->NameInformation.FileName.Buffer[ 0] == L'.' &&
762                  BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_HIDE_DOT_NAMES))
763         {
764
765             if ( Buffer->FileAttributes != FILE_ATTRIBUTE_NORMAL)
766             {
767
768                 Buffer->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
769             }
770             else
771             {
772
773                 Buffer->FileAttributes = FILE_ATTRIBUTE_HIDDEN;
774             }
775         }
776
777         *Length -= sizeof( FILE_BASIC_INFORMATION);
778     }
779     else
780     {
781
782         ntStatus = STATUS_BUFFER_TOO_SMALL;
783     }
784
785     return ntStatus;
786 }
787
788 NTSTATUS
789 AFSQueryStandardInfo( IN PIRP Irp,
790                       IN AFSDirectoryCB *DirectoryCB,
791                       IN OUT PFILE_STANDARD_INFORMATION Buffer,
792                       IN OUT PLONG Length)
793 {
794
795     NTSTATUS ntStatus = STATUS_SUCCESS;
796     AFSFileInfoCB stFileInformation;
797     AFSCcb *pCcb = NULL;
798     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
799
800     if( *Length >= sizeof( FILE_STANDARD_INFORMATION))
801     {
802
803         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
804
805         RtlZeroMemory( Buffer,
806                        *Length);
807
808         Buffer->NumberOfLinks = 1;
809         Buffer->DeletePending = BooleanFlagOn( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
810
811         RtlZeroMemory( &stFileInformation,
812                        sizeof( AFSFileInfoCB));
813
814         Buffer->AllocationSize.QuadPart = (ULONGLONG)((DirectoryCB->ObjectInformation->AllocationSize.QuadPart/PAGE_SIZE) + 1) * PAGE_SIZE;
815
816         Buffer->EndOfFile = DirectoryCB->ObjectInformation->EndOfFile;
817
818         Buffer->Directory = BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_DIRECTORY);
819
820         *Length -= sizeof( FILE_STANDARD_INFORMATION);
821     }
822     else
823     {
824
825         ntStatus = STATUS_BUFFER_TOO_SMALL;
826     }
827
828     return ntStatus;
829 }
830
831 NTSTATUS
832 AFSQueryInternalInfo( IN PIRP Irp,
833                       IN AFSFcb *Fcb,
834                       IN OUT PFILE_INTERNAL_INFORMATION Buffer,
835                       IN OUT PLONG Length)
836 {
837
838     NTSTATUS ntStatus = STATUS_SUCCESS;
839
840     if( *Length >= sizeof( FILE_INTERNAL_INFORMATION))
841     {
842
843         Buffer->IndexNumber.HighPart = Fcb->ObjectInformation->FileId.Volume;
844
845         Buffer->IndexNumber.LowPart = Fcb->ObjectInformation->FileId.Vnode;
846
847         *Length -= sizeof( FILE_INTERNAL_INFORMATION);
848     }
849     else
850     {
851
852         ntStatus = STATUS_BUFFER_TOO_SMALL;
853     }
854
855     return ntStatus;
856 }
857
858 NTSTATUS
859 AFSQueryEaInfo( IN PIRP Irp,
860                 IN AFSDirectoryCB *DirectoryCB,
861                 IN OUT PFILE_EA_INFORMATION Buffer,
862                 IN OUT PLONG Length)
863 {
864
865     NTSTATUS ntStatus = STATUS_SUCCESS;
866
867     RtlZeroMemory( Buffer,
868                    *Length);
869
870     if( *Length >= sizeof( FILE_EA_INFORMATION))
871     {
872
873         Buffer->EaSize = 0;
874
875         *Length -= sizeof( FILE_EA_INFORMATION);
876     }
877     else
878     {
879
880         ntStatus = STATUS_BUFFER_TOO_SMALL;
881     }
882
883     return ntStatus;
884 }
885
886 NTSTATUS
887 AFSQueryPositionInfo( IN PIRP Irp,
888                       IN AFSFcb *Fcb,
889                       IN OUT PFILE_POSITION_INFORMATION Buffer,
890                       IN OUT PLONG Length)
891 {
892
893     NTSTATUS ntStatus = STATUS_SUCCESS;
894     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
895
896     if( *Length >= sizeof( FILE_POSITION_INFORMATION))
897     {
898
899         RtlZeroMemory( Buffer,
900                        *Length);
901
902         Buffer->CurrentByteOffset.QuadPart = pIrpSp->FileObject->CurrentByteOffset.QuadPart;
903
904         *Length -= sizeof( FILE_POSITION_INFORMATION);
905     }
906     else
907     {
908
909         ntStatus = STATUS_BUFFER_TOO_SMALL;
910     }
911
912     return ntStatus;
913 }
914
915 NTSTATUS
916 AFSQueryAccess( IN PIRP Irp,
917                 IN AFSFcb *Fcb,
918                 IN OUT PFILE_ACCESS_INFORMATION Buffer,
919                 IN OUT PLONG Length)
920 {
921
922     NTSTATUS ntStatus = STATUS_SUCCESS;
923
924     if( *Length >= sizeof( FILE_ACCESS_INFORMATION))
925     {
926
927         RtlZeroMemory( Buffer,
928                        *Length);
929
930         Buffer->AccessFlags = 0;
931
932         *Length -= sizeof( FILE_ACCESS_INFORMATION);
933     }
934     else
935     {
936
937         ntStatus = STATUS_BUFFER_TOO_SMALL;
938     }
939
940     return ntStatus;
941 }
942
943 NTSTATUS
944 AFSQueryMode( IN PIRP Irp,
945               IN AFSFcb *Fcb,
946               IN OUT PFILE_MODE_INFORMATION Buffer,
947               IN OUT PLONG Length)
948 {
949
950     NTSTATUS ntStatus = STATUS_SUCCESS;
951
952     if( *Length >= sizeof( FILE_MODE_INFORMATION))
953     {
954
955         RtlZeroMemory( Buffer,
956                        *Length);
957
958         Buffer->Mode = 0;
959
960         *Length -= sizeof( FILE_MODE_INFORMATION);
961     }
962     else
963     {
964
965         ntStatus = STATUS_BUFFER_TOO_SMALL;
966     }
967
968     return ntStatus;
969 }
970
971 NTSTATUS
972 AFSQueryAlignment( IN PIRP Irp,
973                    IN AFSFcb *Fcb,
974                    IN OUT PFILE_ALIGNMENT_INFORMATION Buffer,
975                    IN OUT PLONG Length)
976 {
977
978     NTSTATUS ntStatus = STATUS_SUCCESS;
979
980     if( *Length >= sizeof( FILE_ALIGNMENT_INFORMATION))
981     {
982
983         RtlZeroMemory( Buffer,
984                        *Length);
985
986         Buffer->AlignmentRequirement = 1;
987
988         *Length -= sizeof( FILE_ALIGNMENT_INFORMATION);
989     }
990     else
991     {
992
993         ntStatus = STATUS_BUFFER_TOO_SMALL;
994     }
995
996     return ntStatus;
997 }
998
999 NTSTATUS
1000 AFSQueryNameInfo( IN PIRP Irp,
1001                   IN AFSDirectoryCB *DirectoryCB,
1002                   IN OUT PFILE_NAME_INFORMATION Buffer,
1003                   IN OUT PLONG Length)
1004 {
1005
1006     NTSTATUS ntStatus = STATUS_SUCCESS;
1007     ULONG ulCopyLength = 0;
1008     ULONG cchCopied = 0;
1009     AFSFcb *pFcb = NULL;
1010     AFSCcb *pCcb = NULL;
1011     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1012     BOOLEAN bAddLeadingSlash = FALSE;
1013     BOOLEAN bAddTrailingSlash = FALSE;
1014     USHORT usFullNameLength = 0;
1015
1016     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
1017
1018     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1019
1020     if( *Length >= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
1021     {
1022
1023         RtlZeroMemory( Buffer,
1024                        *Length);
1025
1026         if( pCcb->FullFileName.Length == 0 ||
1027             pCcb->FullFileName.Buffer[ 0] != L'\\')
1028         {
1029             bAddLeadingSlash = TRUE;
1030         }
1031
1032         if( pFcb->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY &&
1033             pCcb->FullFileName.Length > 0 &&
1034             pCcb->FullFileName.Buffer[ (pCcb->FullFileName.Length/sizeof( WCHAR)) - 1] != L'\\')
1035         {
1036             bAddTrailingSlash = TRUE;
1037         }
1038
1039         usFullNameLength = sizeof( WCHAR) +
1040                                     AFSServerName.Length +
1041                                     pCcb->FullFileName.Length;
1042
1043         if( bAddLeadingSlash)
1044         {
1045             usFullNameLength += sizeof( WCHAR);
1046         }
1047
1048         if( bAddTrailingSlash)
1049         {
1050             usFullNameLength += sizeof( WCHAR);
1051         }
1052
1053         if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)usFullNameLength))
1054         {
1055
1056             ulCopyLength = (LONG)usFullNameLength;
1057         }
1058         else
1059         {
1060
1061             ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1062
1063             ntStatus = STATUS_BUFFER_OVERFLOW;
1064         }
1065
1066         Buffer->FileNameLength = (ULONG)usFullNameLength;
1067
1068         *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1069
1070         if( ulCopyLength > 0)
1071         {
1072
1073             Buffer->FileName[ 0] = L'\\';
1074             ulCopyLength -= sizeof( WCHAR);
1075
1076             *Length -= sizeof( WCHAR);
1077             cchCopied += 1;
1078
1079             if( ulCopyLength >= AFSServerName.Length)
1080             {
1081
1082                 RtlCopyMemory( &Buffer->FileName[ 1],
1083                                AFSServerName.Buffer,
1084                                AFSServerName.Length);
1085
1086                 ulCopyLength -= AFSServerName.Length;
1087                 *Length -= AFSServerName.Length;
1088                 cchCopied += AFSServerName.Length/sizeof( WCHAR);
1089
1090                 if ( ulCopyLength > 0 &&
1091                      bAddLeadingSlash)
1092                 {
1093
1094                     Buffer->FileName[ cchCopied] = L'\\';
1095
1096                     ulCopyLength -= sizeof( WCHAR);
1097                     *Length -= sizeof( WCHAR);
1098                     cchCopied++;
1099                 }
1100
1101                 if( ulCopyLength >= pCcb->FullFileName.Length)
1102                 {
1103
1104                     RtlCopyMemory( &Buffer->FileName[ cchCopied],
1105                                    pCcb->FullFileName.Buffer,
1106                                    pCcb->FullFileName.Length);
1107
1108                     ulCopyLength -= pCcb->FullFileName.Length;
1109                     *Length -= pCcb->FullFileName.Length;
1110                     cchCopied += pCcb->FullFileName.Length/sizeof( WCHAR);
1111
1112                     if( ulCopyLength > 0 &&
1113                         bAddTrailingSlash)
1114                     {
1115                         Buffer->FileName[ cchCopied] = L'\\';
1116
1117                         *Length -= sizeof( WCHAR);
1118                     }
1119                 }
1120                 else
1121                 {
1122
1123                     RtlCopyMemory( &Buffer->FileName[ cchCopied],
1124                                    pCcb->FullFileName.Buffer,
1125                                    ulCopyLength);
1126
1127                     *Length -= ulCopyLength;
1128                 }
1129             }
1130         }
1131     }
1132     else
1133     {
1134
1135         ntStatus = STATUS_BUFFER_TOO_SMALL;
1136     }
1137
1138     return ntStatus;
1139 }
1140
1141 NTSTATUS
1142 AFSQueryShortNameInfo( IN PIRP Irp,
1143                        IN AFSDirectoryCB *DirectoryCB,
1144                        IN OUT PFILE_NAME_INFORMATION Buffer,
1145                        IN OUT PLONG Length)
1146 {
1147
1148     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1149     ULONG ulCopyLength = 0;
1150
1151     RtlZeroMemory( Buffer,
1152                    *Length);
1153
1154     if( DirectoryCB->NameInformation.ShortNameLength == 0)
1155     {
1156
1157         //
1158         // The short name IS the long name
1159         //
1160
1161         if( *Length >= (LONG)FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
1162         {
1163
1164             if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)DirectoryCB->NameInformation.FileName.Length))
1165             {
1166
1167                 ulCopyLength = (LONG)DirectoryCB->NameInformation.FileName.Length;
1168
1169                 ntStatus = STATUS_SUCCESS;
1170             }
1171             else
1172             {
1173
1174                 ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1175
1176                 ntStatus = STATUS_BUFFER_OVERFLOW;
1177             }
1178
1179             Buffer->FileNameLength = DirectoryCB->NameInformation.FileName.Length;
1180
1181             *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1182
1183             if( ulCopyLength > 0)
1184             {
1185
1186                 RtlCopyMemory( Buffer->FileName,
1187                                DirectoryCB->NameInformation.FileName.Buffer,
1188                                ulCopyLength);
1189
1190                 *Length -= ulCopyLength;
1191             }
1192         }
1193     }
1194     else
1195     {
1196
1197         if( *Length >= (LONG)FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
1198         {
1199
1200             if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)DirectoryCB->NameInformation.FileName.Length))
1201             {
1202
1203                 ulCopyLength = (LONG)DirectoryCB->NameInformation.ShortNameLength;
1204
1205                 ntStatus = STATUS_SUCCESS;
1206             }
1207             else
1208             {
1209
1210                 ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1211
1212                 ntStatus = STATUS_BUFFER_OVERFLOW;
1213             }
1214
1215             Buffer->FileNameLength = DirectoryCB->NameInformation.ShortNameLength;
1216
1217             *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1218
1219             if( ulCopyLength > 0)
1220             {
1221
1222                 RtlCopyMemory( Buffer->FileName,
1223                                DirectoryCB->NameInformation.ShortName,
1224                                Buffer->FileNameLength);
1225
1226                 *Length -= ulCopyLength;
1227             }
1228         }
1229     }
1230
1231     return ntStatus;
1232 }
1233
1234 NTSTATUS
1235 AFSQueryNetworkInfo( IN PIRP Irp,
1236                      IN AFSDirectoryCB *DirectoryCB,
1237                      IN OUT PFILE_NETWORK_OPEN_INFORMATION Buffer,
1238                      IN OUT PLONG Length)
1239 {
1240
1241     NTSTATUS ntStatus = STATUS_SUCCESS;
1242     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1243
1244     RtlZeroMemory( Buffer,
1245                    *Length);
1246
1247     if( *Length >= sizeof( FILE_NETWORK_OPEN_INFORMATION))
1248     {
1249
1250         Buffer->CreationTime.QuadPart = DirectoryCB->ObjectInformation->CreationTime.QuadPart;
1251         Buffer->LastAccessTime.QuadPart = DirectoryCB->ObjectInformation->LastAccessTime.QuadPart;
1252         Buffer->LastWriteTime.QuadPart = DirectoryCB->ObjectInformation->LastWriteTime.QuadPart;
1253         Buffer->ChangeTime.QuadPart = DirectoryCB->ObjectInformation->ChangeTime.QuadPart;
1254
1255         Buffer->AllocationSize.QuadPart = DirectoryCB->ObjectInformation->AllocationSize.QuadPart;
1256         Buffer->EndOfFile.QuadPart = DirectoryCB->ObjectInformation->EndOfFile.QuadPart;
1257
1258         Buffer->FileAttributes = DirectoryCB->ObjectInformation->FileAttributes;
1259
1260         if( DirectoryCB->NameInformation.FileName.Buffer[ 0] == L'.' &&
1261             BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_HIDE_DOT_NAMES))
1262         {
1263
1264             if ( Buffer->FileAttributes != FILE_ATTRIBUTE_NORMAL)
1265             {
1266
1267                 Buffer->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
1268             }
1269             else
1270             {
1271
1272                 Buffer->FileAttributes = FILE_ATTRIBUTE_HIDDEN;
1273             }
1274         }
1275
1276         *Length -= sizeof( FILE_NETWORK_OPEN_INFORMATION);
1277     }
1278     else
1279     {
1280
1281         ntStatus = STATUS_BUFFER_TOO_SMALL;
1282     }
1283
1284     return ntStatus;
1285 }
1286
1287 NTSTATUS
1288 AFSQueryStreamInfo( IN PIRP Irp,
1289                     IN AFSDirectoryCB *DirectoryCB,
1290                     IN OUT FILE_STREAM_INFORMATION *Buffer,
1291                     IN OUT PLONG Length)
1292 {
1293
1294     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1295     ULONG ulCopyLength = 0;
1296     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1297
1298     if( *Length >= FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName))
1299     {
1300
1301         RtlZeroMemory( Buffer,
1302                        *Length);
1303
1304         Buffer->NextEntryOffset = 0;
1305
1306
1307         if( !BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_DIRECTORY))
1308         {
1309
1310             if( *Length >= (LONG)(FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName) + 14))  // ::$DATA
1311             {
1312
1313                 ulCopyLength = 14;
1314
1315                 ntStatus = STATUS_SUCCESS;
1316             }
1317             else
1318             {
1319
1320                 ulCopyLength = *Length - FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName);
1321
1322                 ntStatus = STATUS_BUFFER_OVERFLOW;
1323             }
1324
1325             Buffer->StreamNameLength = 14; // ::$DATA
1326
1327             Buffer->StreamSize.QuadPart = DirectoryCB->ObjectInformation->EndOfFile.QuadPart;
1328
1329             Buffer->StreamAllocationSize.QuadPart = DirectoryCB->ObjectInformation->AllocationSize.QuadPart;
1330
1331             *Length -= FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName);
1332
1333             if( ulCopyLength > 0)
1334             {
1335
1336                 RtlCopyMemory( Buffer->StreamName,
1337                                L"::$DATA",
1338                                ulCopyLength);
1339
1340                 *Length -= ulCopyLength;
1341             }
1342         }
1343         else
1344         {
1345
1346             Buffer->StreamNameLength = 0;       // No stream for a directory
1347
1348             // The response size is zero
1349
1350             ntStatus = STATUS_SUCCESS;
1351         }
1352     }
1353
1354     return ntStatus;
1355 }
1356
1357 NTSTATUS
1358 AFSQueryAttribTagInfo( IN PIRP Irp,
1359                        IN AFSDirectoryCB *DirectoryCB,
1360                        IN OUT FILE_ATTRIBUTE_TAG_INFORMATION *Buffer,
1361                        IN OUT PLONG Length)
1362 {
1363
1364     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1365     ULONG ulCopyLength = 0;
1366     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1367
1368     if( *Length >= sizeof( FILE_ATTRIBUTE_TAG_INFORMATION))
1369     {
1370
1371         RtlZeroMemory( Buffer,
1372                        *Length);
1373
1374         Buffer->FileAttributes = DirectoryCB->ObjectInformation->FileAttributes;
1375
1376         if( DirectoryCB->NameInformation.FileName.Buffer[ 0] == L'.' &&
1377             BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_HIDE_DOT_NAMES))
1378         {
1379
1380             if ( Buffer->FileAttributes != FILE_ATTRIBUTE_NORMAL)
1381             {
1382
1383                 Buffer->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
1384             }
1385             else
1386             {
1387
1388                 Buffer->FileAttributes = FILE_ATTRIBUTE_HIDDEN;
1389             }
1390         }
1391
1392         if( BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_REPARSE_POINT))
1393         {
1394             Buffer->ReparseTag = IO_REPARSE_TAG_OPENAFS_DFS;
1395         }
1396
1397         *Length -= sizeof( FILE_ATTRIBUTE_TAG_INFORMATION);
1398
1399         ntStatus = STATUS_SUCCESS;
1400     }
1401
1402     return ntStatus;
1403 }
1404
1405 NTSTATUS
1406 AFSQueryRemoteProtocolInfo( IN PIRP Irp,
1407                             IN AFSDirectoryCB *DirectoryCB,
1408                             IN OUT FILE_REMOTE_PROTOCOL_INFORMATION *Buffer,
1409                             IN OUT PLONG Length)
1410 {
1411
1412     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1413     ULONG ulCopyLength = 0;
1414     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1415
1416     if( *Length >= sizeof( FILE_REMOTE_PROTOCOL_INFORMATION))
1417     {
1418
1419         RtlZeroMemory( Buffer,
1420                        *Length);
1421
1422         Buffer->StructureVersion = 1;
1423
1424         Buffer->StructureSize = sizeof(FILE_REMOTE_PROTOCOL_INFORMATION);
1425
1426         Buffer->Protocol = WNNC_NET_OPENAFS;
1427
1428         Buffer->ProtocolMajorVersion = 3;
1429
1430         Buffer->ProtocolMinorVersion = 0;
1431
1432         Buffer->ProtocolRevision = 0;
1433
1434         *Length -= sizeof( FILE_REMOTE_PROTOCOL_INFORMATION);
1435
1436         ntStatus = STATUS_SUCCESS;
1437     }
1438
1439     return ntStatus;
1440 }
1441
1442 NTSTATUS
1443 AFSSetBasicInfo( IN PIRP Irp,
1444                  IN AFSDirectoryCB *DirectoryCB)
1445 {
1446     NTSTATUS ntStatus = STATUS_SUCCESS;
1447     PFILE_BASIC_INFORMATION pBuffer;
1448     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1449     ULONG ulNotifyFilter = 0;
1450     AFSCcb *pCcb = NULL;
1451
1452     __Enter
1453     {
1454
1455         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1456
1457         pBuffer = (PFILE_BASIC_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
1458
1459         pCcb->FileUnwindInfo.FileAttributes = (ULONG)-1;
1460
1461         if( pBuffer->FileAttributes != (ULONGLONG)0)
1462         {
1463
1464             if( DirectoryCB->ObjectInformation->Fcb->Header.NodeTypeCode == AFS_FILE_FCB &&
1465                 BooleanFlagOn( pBuffer->FileAttributes, FILE_ATTRIBUTE_DIRECTORY))
1466             {
1467
1468                 try_return( ntStatus = STATUS_INVALID_PARAMETER);
1469             }
1470
1471             if( DirectoryCB->ObjectInformation->Fcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
1472             {
1473
1474                 pBuffer->FileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
1475             }
1476
1477             pCcb->FileUnwindInfo.FileAttributes = DirectoryCB->ObjectInformation->FileAttributes;
1478
1479             DirectoryCB->ObjectInformation->FileAttributes = pBuffer->FileAttributes;
1480
1481             ulNotifyFilter |= FILE_NOTIFY_CHANGE_ATTRIBUTES;
1482
1483             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED);
1484         }
1485
1486         pCcb->FileUnwindInfo.CreationTime.QuadPart = (ULONGLONG)-1;
1487
1488         if( pBuffer->CreationTime.QuadPart != (ULONGLONG)-1 &&
1489             pBuffer->CreationTime.QuadPart != (ULONGLONG)0)
1490         {
1491
1492             pCcb->FileUnwindInfo.CreationTime.QuadPart = DirectoryCB->ObjectInformation->CreationTime.QuadPart;
1493
1494             DirectoryCB->ObjectInformation->CreationTime.QuadPart = pBuffer->CreationTime.QuadPart;
1495
1496             ulNotifyFilter |= FILE_NOTIFY_CHANGE_CREATION;
1497
1498             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CREATE_TIME);
1499         }
1500
1501         pCcb->FileUnwindInfo.LastAccessTime.QuadPart = (ULONGLONG)-1;
1502
1503         if( pBuffer->LastAccessTime.QuadPart != (ULONGLONG)-1 &&
1504             pBuffer->LastAccessTime.QuadPart != (ULONGLONG)0)
1505         {
1506
1507             pCcb->FileUnwindInfo.LastAccessTime.QuadPart = DirectoryCB->ObjectInformation->LastAccessTime.QuadPart;
1508
1509             DirectoryCB->ObjectInformation->LastAccessTime.QuadPart = pBuffer->LastAccessTime.QuadPart;
1510
1511             ulNotifyFilter |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
1512
1513             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_ACCESS_TIME);
1514         }
1515
1516         pCcb->FileUnwindInfo.LastWriteTime.QuadPart = (ULONGLONG)-1;
1517
1518         if( pBuffer->LastWriteTime.QuadPart != (ULONGLONG)-1 &&
1519             pBuffer->LastWriteTime.QuadPart != (ULONGLONG)0)
1520         {
1521
1522             pCcb->FileUnwindInfo.LastWriteTime.QuadPart = DirectoryCB->ObjectInformation->LastWriteTime.QuadPart;
1523
1524             DirectoryCB->ObjectInformation->LastWriteTime.QuadPart = pBuffer->LastWriteTime.QuadPart;
1525
1526             ulNotifyFilter |= FILE_NOTIFY_CHANGE_LAST_WRITE;
1527
1528             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_LAST_WRITE_TIME);
1529         }
1530
1531         pCcb->FileUnwindInfo.ChangeTime.QuadPart = (ULONGLONG)-1;
1532
1533         if( pBuffer->ChangeTime.QuadPart != (ULONGLONG)-1 &&
1534             pBuffer->ChangeTime.QuadPart != (ULONGLONG)0)
1535         {
1536
1537             pCcb->FileUnwindInfo.ChangeTime.QuadPart = DirectoryCB->ObjectInformation->ChangeTime.QuadPart;
1538
1539             DirectoryCB->ObjectInformation->ChangeTime.QuadPart = pBuffer->ChangeTime.QuadPart;
1540
1541             ulNotifyFilter |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
1542
1543             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CHANGE_TIME);
1544         }
1545
1546         if( ulNotifyFilter > 0)
1547         {
1548
1549             if( DirectoryCB->ObjectInformation->ParentObjectInformation != NULL)
1550             {
1551
1552                 AFSFsRtlNotifyFullReportChange( DirectoryCB->ObjectInformation->ParentObjectInformation,
1553                                                 pCcb,
1554                                                 (ULONG)ulNotifyFilter,
1555                                                 (ULONG)FILE_ACTION_MODIFIED);
1556             }
1557         }
1558
1559 try_exit:
1560
1561         NOTHING;
1562     }
1563
1564     return ntStatus;
1565 }
1566
1567 NTSTATUS
1568 AFSSetDispositionInfo( IN PIRP Irp,
1569                        IN AFSDirectoryCB *DirectoryCB)
1570 {
1571     NTSTATUS ntStatus = STATUS_SUCCESS;
1572     PFILE_DISPOSITION_INFORMATION pBuffer;
1573     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1574     AFSFcb *pFcb = NULL;
1575     AFSCcb *pCcb = NULL;
1576
1577     __Enter
1578     {
1579
1580         pBuffer = (PFILE_DISPOSITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
1581
1582         pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
1583
1584         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1585
1586         //
1587         // Can't delete the root
1588         //
1589
1590         if( pFcb->Header.NodeTypeCode == AFS_ROOT_FCB)
1591         {
1592
1593             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1594                           AFS_TRACE_LEVEL_ERROR,
1595                           "AFSSetDispositionInfo Attempt to delete root entry\n");
1596
1597             try_return( ntStatus = STATUS_CANNOT_DELETE);
1598         }
1599
1600         //
1601         // If the file is read only then do not allow the delete
1602         //
1603
1604         if( BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_READONLY))
1605         {
1606
1607             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1608                           AFS_TRACE_LEVEL_ERROR,
1609                           "AFSSetDispositionInfo Attempt to delete read only entry %wZ\n",
1610                           &DirectoryCB->NameInformation.FileName);
1611
1612             try_return( ntStatus = STATUS_CANNOT_DELETE);
1613         }
1614
1615         if( pBuffer->DeleteFile)
1616         {
1617
1618             //
1619             // Check if the caller can delete the file
1620             //
1621
1622             ntStatus = AFSNotifyDelete( DirectoryCB,
1623                                         TRUE);
1624
1625             if( !NT_SUCCESS( ntStatus))
1626             {
1627
1628                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1629                               AFS_TRACE_LEVEL_ERROR,
1630                               "AFSSetDispositionInfo Cannot delete entry %wZ Status %08lX\n",
1631                               &DirectoryCB->NameInformation.FileName,
1632                               ntStatus);
1633
1634                 try_return( ntStatus);
1635             }
1636
1637             if( pFcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
1638             {
1639
1640                 //
1641                 // Check if this is a directory that there are not currently other opens
1642                 //
1643
1644                 if( pFcb->ObjectInformation->Specific.Directory.ChildOpenHandleCount > 0)
1645                 {
1646
1647                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1648                                   AFS_TRACE_LEVEL_ERROR,
1649                                   "AFSSetDispositionInfo Attempt to delete directory %wZ with open %u handles\n",
1650                                   &DirectoryCB->NameInformation.FileName,
1651                                   pFcb->ObjectInformation->Specific.Directory.ChildOpenHandleCount);
1652
1653                     try_return( ntStatus = STATUS_DIRECTORY_NOT_EMPTY);
1654                 }
1655
1656                 if( !AFSIsDirectoryEmptyForDelete( pFcb))
1657                 {
1658
1659                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1660                                   AFS_TRACE_LEVEL_ERROR,
1661                                   "AFSSetDispositionInfo Attempt to delete non-empty directory %wZ\n",
1662                                   &DirectoryCB->NameInformation.FileName);
1663
1664                     try_return( ntStatus = STATUS_DIRECTORY_NOT_EMPTY);
1665                 }
1666             }
1667             else
1668             {
1669
1670                 //
1671                 // Attempt to flush any outstanding data
1672                 //
1673
1674                 if( !MmFlushImageSection( &pFcb->NPFcb->SectionObjectPointers,
1675                                           MmFlushForDelete))
1676                 {
1677
1678                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1679                                   AFS_TRACE_LEVEL_ERROR,
1680                                   "AFSSetDispositionInfo Failed to flush image section for delete Entry %wZ\n",
1681                                   &DirectoryCB->NameInformation.FileName);
1682
1683                     try_return( ntStatus = STATUS_CANNOT_DELETE);
1684                 }
1685
1686                 //
1687                 // Purge the cache as well
1688                 //
1689
1690                 if( pFcb->NPFcb->SectionObjectPointers.DataSectionObject != NULL)
1691                 {
1692
1693                     CcPurgeCacheSection( &pFcb->NPFcb->SectionObjectPointers,
1694                                          NULL,
1695                                          0,
1696                                          TRUE);
1697                 }
1698             }
1699
1700             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1701                           AFS_TRACE_LEVEL_VERBOSE,
1702                           "AFSSetDispositionInfo Setting PENDING_DELETE on DirEntry  %p Name %wZ\n",
1703                           DirectoryCB,
1704                           &DirectoryCB->NameInformation.FileName);
1705
1706             SetFlag( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
1707         }
1708         else
1709         {
1710
1711             ClearFlag( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
1712         }
1713
1714         //
1715         // OK, should be good to go, set the flag in the file object
1716         //
1717
1718         pIrpSp->FileObject->DeletePending = pBuffer->DeleteFile;
1719
1720 try_exit:
1721
1722         NOTHING;
1723     }
1724
1725     return ntStatus;
1726 }
1727
1728 NTSTATUS
1729 AFSSetRenameInfo( IN PIRP Irp)
1730 {
1731
1732     NTSTATUS ntStatus = STATUS_SUCCESS;
1733     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1734     IO_STATUS_BLOCK stIoSb = {0,0};
1735     AFSFcb *pSrcFcb = NULL, *pTargetDcb = NULL, *pTargetFcb = NULL;
1736     AFSCcb *pSrcCcb = NULL, *pTargetDirCcb = NULL;
1737     PFILE_OBJECT pSrcFileObj = pIrpSp->FileObject;
1738     PFILE_OBJECT pTargetFileObj = pIrpSp->Parameters.SetFile.FileObject;
1739     PFILE_RENAME_INFORMATION pRenameInfo = NULL;
1740     UNICODE_STRING uniTargetName, uniSourceName;
1741     BOOLEAN bReplaceIfExists = FALSE;
1742     UNICODE_STRING uniShortName;
1743     AFSDirectoryCB *pTargetDirEntry = NULL;
1744     ULONG ulTargetCRC = 0;
1745     BOOLEAN bTargetEntryExists = FALSE;
1746     AFSObjectInfoCB *pSrcObject = NULL, *pTargetObject = NULL;
1747     AFSObjectInfoCB *pSrcParentObject = NULL, *pTargetParentObject = NULL;
1748     AFSFileID stNewFid, stTmpTargetFid;
1749     UNICODE_STRING uniTmpTargetName;
1750     BOOLEAN bReplaceTmpTargetEntry = FALSE;
1751     ULONG ulNotificationAction = 0, ulNotifyFilter = 0;
1752     UNICODE_STRING uniFullTargetPath;
1753     BOOLEAN bCommonParent = FALSE;
1754     ULONG oldFileIndex;
1755
1756     __Enter
1757     {
1758
1759         bReplaceIfExists = pIrpSp->Parameters.SetFile.ReplaceIfExists;
1760
1761         pSrcFcb = (AFSFcb *)pSrcFileObj->FsContext;
1762         pSrcCcb = (AFSCcb *)pSrcFileObj->FsContext2;
1763
1764         pSrcObject = pSrcFcb->ObjectInformation;
1765
1766         uniTmpTargetName.Length = 0;
1767         uniTmpTargetName.MaximumLength = 0;
1768         uniTmpTargetName.Buffer = NULL;
1769
1770         //
1771         // Perform some basic checks to ensure FS integrity
1772         //
1773
1774         if( pSrcFcb->Header.NodeTypeCode == AFS_ROOT_FCB)
1775         {
1776
1777             //
1778             // Can't rename the root directory
1779             //
1780
1781             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1782                           AFS_TRACE_LEVEL_ERROR,
1783                           "AFSSetRenameInfo Attempt to rename root entry\n");
1784
1785             try_return( ntStatus = STATUS_INVALID_PARAMETER);
1786         }
1787
1788         if( pSrcFcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
1789         {
1790
1791             //
1792             // If there are any open children then fail the rename
1793             //
1794
1795             if( pSrcFcb->ObjectInformation->Specific.Directory.ChildOpenHandleCount > 0)
1796             {
1797
1798                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1799                               AFS_TRACE_LEVEL_ERROR,
1800                               "AFSSetRenameInfo Attempt to rename directory with open children %wZ\n",
1801                               &pSrcCcb->DirectoryCB->NameInformation.FileName);
1802
1803                 try_return( ntStatus = STATUS_ACCESS_DENIED);
1804             }
1805         }
1806         else
1807         {
1808
1809             if( pSrcFcb->OpenHandleCount > 1)
1810             {
1811
1812                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1813                               AFS_TRACE_LEVEL_ERROR,
1814                               "AFSSetRenameInfo Attempt to rename directory with open references %wZ\n",
1815                               &pSrcCcb->DirectoryCB->NameInformation.FileName);
1816
1817                 try_return( ntStatus = STATUS_ACCESS_DENIED);
1818             }
1819         }
1820
1821         //
1822         // Resolve the target fileobject
1823         //
1824
1825         if( pTargetFileObj == NULL)
1826         {
1827
1828             //
1829             // This is a simple rename. Here the target directory is the same as the source parent directory
1830             // and the name is retrieved from the system buffer information
1831             //
1832
1833             pRenameInfo = (PFILE_RENAME_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
1834
1835             pTargetParentObject = pSrcFcb->ObjectInformation->ParentObjectInformation;
1836
1837             pTargetDcb = pTargetParentObject->Fcb;
1838
1839             uniTargetName.Length = (USHORT)pRenameInfo->FileNameLength;
1840             uniTargetName.Buffer = (PWSTR)&pRenameInfo->FileName;
1841         }
1842         else
1843         {
1844
1845             //
1846             // So here we have the target directory taken from the targetfile object
1847             //
1848
1849             pTargetDcb = (AFSFcb *)pTargetFileObj->FsContext;
1850
1851             pTargetDirCcb = (AFSCcb *)pTargetFileObj->FsContext2;
1852
1853             pTargetParentObject = (AFSObjectInfoCB *)pTargetDcb->ObjectInformation;
1854
1855             //
1856             // Grab the target name which we setup in the IRP_MJ_CREATE handler. By how we set this up
1857             // it is only the target component of the rename operation
1858             //
1859
1860             uniTargetName = *((PUNICODE_STRING)&pTargetFileObj->FileName);
1861         }
1862
1863         //
1864         // We do not allow cross-volume renames to occur
1865         //
1866
1867         if( pTargetParentObject->VolumeCB != pSrcObject->VolumeCB)
1868         {
1869
1870             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1871                           AFS_TRACE_LEVEL_ERROR,
1872                           "AFSSetRenameInfo Attempt to rename directory to different volume %wZ\n",
1873                           &pSrcCcb->DirectoryCB->NameInformation.FileName);
1874
1875             try_return( ntStatus = STATUS_NOT_SAME_DEVICE);
1876         }
1877
1878         //
1879         // If the target exists be sure the ReplaceIfExists flag is set
1880         //
1881
1882         AFSAcquireShared( pTargetParentObject->VolumeCB->VolumeLock,
1883                           TRUE);
1884
1885         ulTargetCRC = AFSGenerateCRC( &uniTargetName,
1886                                       FALSE);
1887
1888         AFSAcquireShared( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1889                           TRUE);
1890
1891         AFSLocateCaseSensitiveDirEntry( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
1892                                         ulTargetCRC,
1893                                         &pTargetDirEntry);
1894
1895         if( pTargetDirEntry == NULL)
1896         {
1897
1898             //
1899             // Missed so perform a case insensitive lookup
1900             //
1901
1902             ulTargetCRC = AFSGenerateCRC( &uniTargetName,
1903                                           TRUE);
1904
1905             AFSLocateCaseInsensitiveDirEntry( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
1906                                               ulTargetCRC,
1907                                               &pTargetDirEntry);
1908         }
1909
1910         if( pTargetDirEntry == NULL && RtlIsNameLegalDOS8Dot3( &uniTargetName,
1911                                                                NULL,
1912                                                                NULL))
1913         {
1914             //
1915             // Try the short name
1916             //
1917             AFSLocateShortNameDirEntry( pTargetParentObject->Specific.Directory.ShortNameTree,
1918                                         ulTargetCRC,
1919                                         &pTargetDirEntry);
1920         }
1921         //
1922         // Increment our ref count on the dir entry
1923         //
1924
1925         if( pTargetDirEntry != NULL)
1926         {
1927             InterlockedIncrement( &pTargetDirEntry->OpenReferenceCount);
1928         }
1929
1930         AFSReleaseResource( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1931
1932         if( pTargetDirEntry != NULL)
1933         {
1934
1935             if( !bReplaceIfExists)
1936             {
1937
1938                 AFSReleaseResource( pTargetParentObject->VolumeCB->VolumeLock);
1939
1940                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1941                               AFS_TRACE_LEVEL_ERROR,
1942                               "AFSSetRenameInfo Attempt to rename directory with target collision %wZ Target %wZ\n",
1943                               &pSrcCcb->DirectoryCB->NameInformation.FileName,
1944                               &pTargetDirEntry->NameInformation.FileName);
1945
1946                 try_return( ntStatus = STATUS_OBJECT_NAME_COLLISION);
1947             }
1948
1949             bTargetEntryExists = TRUE;
1950         }
1951
1952         AFSReleaseResource( pTargetParentObject->VolumeCB->VolumeLock);
1953
1954         //
1955         // Extract off the final component name from the Fcb
1956         //
1957
1958         uniSourceName.Length = (USHORT)pSrcCcb->DirectoryCB->NameInformation.FileName.Length;
1959         uniSourceName.MaximumLength = uniSourceName.Length;
1960
1961         uniSourceName.Buffer = pSrcCcb->DirectoryCB->NameInformation.FileName.Buffer;
1962
1963         //
1964         // The quick check to see if they are not really performing a rename
1965         // Do the names match? Only do this where the parent directories are
1966         // the same
1967         //
1968
1969         if( pTargetParentObject == pSrcFcb->ObjectInformation->ParentObjectInformation)
1970         {
1971
1972             bCommonParent = TRUE;
1973
1974             if( FsRtlAreNamesEqual( &uniTargetName,
1975                                     &uniSourceName,
1976                                     TRUE,
1977                                     NULL))
1978             {
1979
1980                 //
1981                 // Check for case only rename
1982                 //
1983
1984                 if( !FsRtlAreNamesEqual( &uniTargetName,
1985                                          &uniSourceName,
1986                                          FALSE,
1987                                          NULL))
1988                 {
1989
1990                     //
1991                     // Just move in the new case form of the name
1992                     //
1993
1994                     RtlCopyMemory( pSrcCcb->DirectoryCB->NameInformation.FileName.Buffer,
1995                                    uniTargetName.Buffer,
1996                                    uniTargetName.Length);
1997                 }
1998
1999                 try_return( ntStatus = STATUS_SUCCESS);
2000             }
2001         }
2002         else
2003         {
2004
2005             bCommonParent = FALSE;
2006         }
2007
2008         //
2009         // If the target name exists then we need to 'move' the target before
2010         // sending the rename to the service
2011         //
2012
2013         if( bReplaceIfExists &&
2014             pTargetDirEntry != NULL)
2015         {
2016
2017             //
2018             // What we will do is temporarily rename the file to a tmp file
2019             // so we can back out if anything fails below
2020             // First thing is to remove the original target from the parent
2021             //
2022
2023             AFSAcquireExcl( pTargetDirEntry->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
2024                             TRUE);
2025
2026             AFSRemoveDirNodeFromParent( pTargetDirEntry->ObjectInformation->ParentObjectInformation,
2027                                         pTargetDirEntry,
2028                                         TRUE);
2029
2030             AFSReleaseResource( pTargetDirEntry->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
2031
2032             pTargetDirEntry->FileIndex = (ULONG)InterlockedIncrement( &pTargetDirEntry->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.ContentIndex);
2033
2034             uniTmpTargetName.Length = 0;
2035             uniTmpTargetName.MaximumLength = uniTargetName.Length + (4 * sizeof( WCHAR));
2036
2037             uniTmpTargetName.Buffer = (WCHAR *)AFSExAllocatePoolWithTag( PagedPool,
2038                                                                          uniTmpTargetName.MaximumLength,
2039                                                                          AFS_GENERIC_MEMORY_11_TAG);
2040
2041             if( uniTmpTargetName.Buffer == NULL)
2042             {
2043
2044                 //
2045                 // Re-insert the entry
2046                 //
2047
2048                 AFSInsertDirectoryNode( pTargetDirEntry->ObjectInformation->ParentObjectInformation,
2049                                         pTargetDirEntry,
2050                                         TRUE);
2051
2052                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2053                               AFS_TRACE_LEVEL_ERROR,
2054                               "AFSSetRenameInfo Failed tmp buffer allocation during rename of %wZ\n",
2055                               &pSrcCcb->DirectoryCB->NameInformation.FileName);
2056
2057                 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2058             }
2059
2060             RtlZeroMemory( uniTmpTargetName.Buffer,
2061                            uniTmpTargetName.MaximumLength);
2062
2063             uniTmpTargetName.Length = uniTargetName.Length;
2064
2065             RtlCopyMemory( uniTmpTargetName.Buffer,
2066                            uniTargetName.Buffer,
2067                            uniTmpTargetName.Length);
2068
2069             RtlCopyMemory( &uniTmpTargetName.Buffer[ uniTmpTargetName.Length/sizeof( WCHAR)],
2070                            L".tmp",
2071                            4 * sizeof( WCHAR));
2072
2073             uniTmpTargetName.Length += (4 * sizeof( WCHAR));
2074
2075             ntStatus = AFSNotifyRename( pTargetDirEntry->ObjectInformation,
2076                                         pTargetDirEntry->ObjectInformation->ParentObjectInformation,
2077                                         pTargetDcb->ObjectInformation,
2078                                         pTargetDirEntry,
2079                                         &uniTmpTargetName,
2080                                         &stTmpTargetFid);
2081
2082             if( !NT_SUCCESS( ntStatus))
2083             {
2084
2085                 //
2086                 // Re-insert the entry
2087                 //
2088
2089                 AFSInsertDirectoryNode( pTargetDirEntry->ObjectInformation->ParentObjectInformation,
2090                                         pTargetDirEntry,
2091                                         TRUE);
2092
2093                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2094                               AFS_TRACE_LEVEL_ERROR,
2095                               "AFSSetRenameInfo Failed rename of %wZ to tmp %wZ Status %08lX\n",
2096                               &pSrcCcb->DirectoryCB->NameInformation.FileName,
2097                               &uniTmpTargetName,
2098                               ntStatus);
2099
2100                 try_return( ntStatus);
2101             }
2102
2103             //
2104             // Indicate we need to replace this entry if any failure occurs below
2105             //
2106
2107             bReplaceTmpTargetEntry = TRUE;
2108         }
2109
2110         //
2111         // We need to remove the DirEntry from the parent node, update the index
2112         // and reinsert it into the parent tree. Note that for entries with the
2113         // same parent we do not pull the node from the enumeration list
2114         //
2115
2116         AFSAcquireExcl( pSrcFcb->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
2117                         TRUE);
2118
2119         AFSRemoveDirNodeFromParent( pSrcFcb->ObjectInformation->ParentObjectInformation,
2120                                     pSrcCcb->DirectoryCB,
2121                                     !bCommonParent);
2122
2123         AFSReleaseResource( pSrcFcb->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
2124
2125         oldFileIndex = pSrcCcb->DirectoryCB->FileIndex;
2126         if( !bCommonParent)
2127         {
2128
2129             //
2130             // We always need to update the FileIndex since this entry will be put at the 'end'
2131             // of the enumeraiton list. If we don't it will cause recursion ... We do this
2132             // here to cover any failures which might occur below
2133             //
2134
2135             pSrcCcb->DirectoryCB->FileIndex =
2136                             (ULONG)InterlockedIncrement( &pTargetDcb->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.ContentIndex);
2137         }
2138
2139         //
2140         // OK, this is a simple rename. Issue the rename
2141         // request to the service.
2142         //
2143
2144         ntStatus = AFSNotifyRename( pSrcFcb->ObjectInformation,
2145                                     pSrcFcb->ObjectInformation->ParentObjectInformation,
2146                                     pTargetDcb->ObjectInformation,
2147                                     pSrcCcb->DirectoryCB,
2148                                     &uniTargetName,
2149                                     &stNewFid);
2150
2151         if( !NT_SUCCESS( ntStatus))
2152         {
2153
2154             //
2155             // Attempt to re-insert the directory entry
2156             //
2157
2158             pSrcCcb->DirectoryCB->FileIndex = oldFileIndex;
2159             AFSInsertDirectoryNode( pSrcFcb->ObjectInformation->ParentObjectInformation,
2160                                     pSrcCcb->DirectoryCB,
2161                                     !bCommonParent);
2162
2163             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2164                           AFS_TRACE_LEVEL_ERROR,
2165                           "AFSSetRenameInfo Failed rename of %wZ to target %wZ Status %08lX\n",
2166                           &pSrcCcb->DirectoryCB->NameInformation.FileName,
2167                           &uniTargetName,
2168                           ntStatus);
2169
2170             try_return( ntStatus);
2171         }
2172
2173         //
2174         // Set the notification up for the source file
2175         //
2176
2177         if( pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation == pTargetParentObject &&
2178             !bReplaceTmpTargetEntry)
2179         {
2180
2181             ulNotificationAction = FILE_ACTION_RENAMED_OLD_NAME;
2182         }
2183         else
2184         {
2185
2186             ulNotificationAction = FILE_ACTION_REMOVED;
2187         }
2188
2189         if( pSrcCcb->DirectoryCB->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY)
2190         {
2191
2192             ulNotifyFilter = FILE_NOTIFY_CHANGE_DIR_NAME;
2193         }
2194         else
2195         {
2196
2197             ulNotifyFilter = FILE_NOTIFY_CHANGE_FILE_NAME;
2198         }
2199
2200         AFSFsRtlNotifyFullReportChange( pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation,
2201                                         pSrcCcb,
2202                                         (ULONG)ulNotifyFilter,
2203                                         (ULONG)ulNotificationAction);
2204
2205         //
2206         // Update the name in the dir entry.
2207         //
2208
2209         ntStatus = AFSUpdateDirEntryName( pSrcCcb->DirectoryCB,
2210                                           &uniTargetName);
2211
2212         if( !NT_SUCCESS( ntStatus))
2213         {
2214
2215             //
2216             // Attempt to re-insert the directory entry
2217             //
2218
2219             pSrcCcb->DirectoryCB->FileIndex = oldFileIndex;
2220             AFSInsertDirectoryNode( pSrcFcb->ObjectInformation->ParentObjectInformation,
2221                                     pSrcCcb->DirectoryCB,
2222                                     !bCommonParent);
2223
2224             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2225                           AFS_TRACE_LEVEL_ERROR,
2226                           "AFSSetRenameInfo Failed update of dir entry %wZ to target %wZ Status %08lX\n",
2227                           &pSrcCcb->DirectoryCB->NameInformation.FileName,
2228                           &uniTargetName,
2229                           ntStatus);
2230
2231             try_return( ntStatus);
2232         }
2233
2234         //
2235         // Update the object information block, if needed
2236         //
2237
2238         if( !AFSIsEqualFID( &pSrcObject->FileId,
2239                             &stNewFid))
2240         {
2241
2242             //
2243             // Remove the old information entry
2244             //
2245
2246             AFSAcquireExcl( pSrcObject->VolumeCB->ObjectInfoTree.TreeLock,
2247                             TRUE);
2248
2249             AFSRemoveHashEntry( &pSrcObject->VolumeCB->ObjectInfoTree.TreeHead,
2250                                 &pSrcObject->TreeEntry);
2251
2252             RtlCopyMemory( &pSrcObject->FileId,
2253                            &stNewFid,
2254                            sizeof( AFSFileID));
2255
2256             //
2257             // Insert the entry into the new object table.
2258             //
2259
2260             pSrcObject->TreeEntry.HashIndex = AFSCreateLowIndex( &pSrcObject->FileId);
2261
2262             if( pSrcObject->VolumeCB->ObjectInfoTree.TreeHead == NULL)
2263             {
2264
2265                 pSrcObject->VolumeCB->ObjectInfoTree.TreeHead = &pSrcObject->TreeEntry;
2266             }
2267             else
2268             {
2269
2270                 AFSInsertHashEntry( pSrcObject->VolumeCB->ObjectInfoTree.TreeHead,
2271                                     &pSrcObject->TreeEntry);
2272             }
2273
2274             AFSReleaseResource( pSrcObject->VolumeCB->ObjectInfoTree.TreeLock);
2275         }
2276
2277         //
2278         // Update the hash values for the name trees.
2279         //
2280
2281         pSrcCcb->DirectoryCB->CaseSensitiveTreeEntry.HashIndex = AFSGenerateCRC( &pSrcCcb->DirectoryCB->NameInformation.FileName,
2282                                                                                  FALSE);
2283
2284         pSrcCcb->DirectoryCB->CaseInsensitiveTreeEntry.HashIndex = AFSGenerateCRC( &pSrcCcb->DirectoryCB->NameInformation.FileName,
2285                                                                                    TRUE);
2286
2287         if( pSrcCcb->DirectoryCB->NameInformation.ShortNameLength > 0)
2288         {
2289
2290             uniShortName.Length = pSrcCcb->DirectoryCB->NameInformation.ShortNameLength;
2291             uniShortName.Buffer = pSrcCcb->DirectoryCB->NameInformation.ShortName;
2292
2293             pSrcCcb->DirectoryCB->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
2294                                                                                            TRUE);
2295         }
2296         else
2297         {
2298
2299             pSrcCcb->DirectoryCB->Type.Data.ShortNameTreeEntry.HashIndex = 0;
2300         }
2301
2302         if( !bCommonParent)
2303         {
2304
2305             //
2306             // Update the file index for the object in the new parent
2307             //
2308
2309             pSrcCcb->DirectoryCB->FileIndex = (ULONG)InterlockedIncrement( &pTargetParentObject->Specific.Directory.DirectoryNodeHdr.ContentIndex);
2310         }
2311
2312         //
2313         // Re-insert the directory entry
2314         //
2315
2316         AFSInsertDirectoryNode( pTargetParentObject,
2317                                 pSrcCcb->DirectoryCB,
2318                                 !bCommonParent);
2319
2320         //
2321         // Update the parent pointer in the source object if they are different
2322         //
2323
2324         if( pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation != pTargetParentObject)
2325         {
2326
2327             InterlockedDecrement( &pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation->Specific.Directory.ChildOpenHandleCount);
2328
2329             InterlockedDecrement( &pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation->Specific.Directory.ChildOpenReferenceCount);
2330
2331             InterlockedIncrement( &pTargetParentObject->Specific.Directory.ChildOpenHandleCount);
2332
2333             InterlockedIncrement( &pTargetParentObject->Specific.Directory.ChildOpenReferenceCount);
2334
2335             pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation = pTargetParentObject;
2336
2337             ulNotificationAction = FILE_ACTION_ADDED;
2338         }
2339         else
2340         {
2341
2342             ulNotificationAction = FILE_ACTION_RENAMED_NEW_NAME;
2343         }
2344
2345         //
2346         // Now update the notification for the target file
2347         //
2348
2349         AFSFsRtlNotifyFullReportChange( pTargetParentObject->ParentObjectInformation,
2350                                         pSrcCcb,
2351                                         (ULONG)ulNotifyFilter,
2352                                         (ULONG)ulNotificationAction);
2353
2354         //
2355         // If we performed the rename of the target because it existed, we now need to
2356         // delete the tmp target we created above
2357         //
2358
2359         if( bReplaceTmpTargetEntry)
2360         {
2361
2362             RtlCopyMemory( &pTargetDirEntry->ObjectInformation->FileId,
2363                            &stTmpTargetFid,
2364                            sizeof( AFSFileID));
2365
2366             //
2367             // Update the name in the dir entry
2368             //
2369
2370             ntStatus = AFSUpdateDirEntryName( pTargetDirEntry,
2371                                               &uniTmpTargetName);
2372
2373             if( !NT_SUCCESS( ntStatus))
2374             {
2375
2376                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2377                               AFS_TRACE_LEVEL_ERROR,
2378                               "AFSSetRenameInfo Failed update of target dir entry %wZ to tmp %wZ Status %08lX\n",
2379                               &pTargetDirEntry->NameInformation.FileName,
2380                               &uniTmpTargetName,
2381                               ntStatus);
2382
2383                 try_return( ntStatus);
2384             }
2385
2386             ntStatus = AFSNotifyDelete( pTargetDirEntry,
2387                                         FALSE);
2388
2389             if( !NT_SUCCESS( ntStatus))
2390             {
2391
2392                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2393                               AFS_TRACE_LEVEL_VERBOSE,
2394                               "AFSSetRenameInfo object deletion failure dir entry %p name %wZ to tmp %wZ\n",
2395                               pTargetDirEntry,
2396                               &pTargetDirEntry->NameInformation.FileName,
2397                               &uniTmpTargetName);
2398
2399                 try_return( ntStatus);
2400             }
2401
2402             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2403                           AFS_TRACE_LEVEL_VERBOSE,
2404                           "AFSSetRenameInfo Setting DELETE flag in dir entry %p name %wZ to tmp %wZ\n",
2405                           pTargetDirEntry,
2406                           &pTargetDirEntry->NameInformation.FileName,
2407                           &uniTmpTargetName);
2408
2409             SetFlag( pTargetDirEntry->Flags, AFS_DIR_ENTRY_DELETED);
2410
2411             //
2412             // Try and purge the cache map if this is a file
2413             //
2414
2415             if( pTargetDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_FILE &&
2416                 pTargetDirEntry->ObjectInformation->Fcb != NULL &&
2417                 pTargetDirEntry->OpenReferenceCount > 1)
2418             {
2419
2420                 pTargetFcb = pTargetDirEntry->ObjectInformation->Fcb;
2421
2422                 AFSAcquireExcl( &pTargetFcb->NPFcb->Resource,
2423                                 TRUE);
2424
2425                 //
2426                 // Try and flush the cache map
2427                 //
2428
2429                 if( !MmFlushImageSection( &pTargetFcb->NPFcb->SectionObjectPointers,
2430                                           MmFlushForDelete))
2431                 {
2432
2433                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2434                                   AFS_TRACE_LEVEL_ERROR,
2435                                   "AFSSetRenameInfo Failed to flush section for deleted temp file %wZ\n",
2436                                   &pTargetDirEntry->NameInformation.FileName);
2437                 }
2438
2439                 AFSReleaseResource( &pTargetFcb->NPFcb->Resource);
2440             }
2441
2442             ASSERT( pTargetDirEntry->OpenReferenceCount > 0);
2443
2444             InterlockedDecrement( &pTargetDirEntry->OpenReferenceCount);
2445
2446             if( pTargetDirEntry->OpenReferenceCount == 0)
2447             {
2448
2449                 SetFlag( pTargetDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_DELETED);
2450
2451                 ASSERT( BooleanFlagOn( pTargetDirEntry->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE));
2452
2453                 //
2454                 // Free up the name buffer if it was reallocated
2455                 //
2456
2457                 if( BooleanFlagOn( pTargetDirEntry->Flags, AFS_DIR_RELEASE_NAME_BUFFER))
2458                 {
2459
2460                     AFSExFreePool( pTargetDirEntry->NameInformation.FileName.Buffer);
2461                 }
2462
2463                 if( BooleanFlagOn( pTargetDirEntry->Flags, AFS_DIR_RELEASE_TARGET_NAME_BUFFER))
2464                 {
2465
2466                     AFSExFreePool( pTargetDirEntry->NameInformation.TargetName.Buffer);
2467                 }
2468
2469                 //
2470                 // Dereference the object for this dir entry
2471                 //
2472
2473                 ASSERT( pTargetDirEntry->ObjectInformation->ObjectReferenceCount > 0);
2474
2475                 InterlockedDecrement( &pTargetDirEntry->ObjectInformation->ObjectReferenceCount);
2476
2477                 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
2478                               AFS_TRACE_LEVEL_VERBOSE,
2479                               "AFSSetRenameInfo Decrement3 count on object %08lX Cnt %d\n",
2480                               pTargetDirEntry->ObjectInformation,
2481                               pTargetDirEntry->ObjectInformation->ObjectReferenceCount);
2482
2483                 //
2484                 // Free up the dir entry
2485                 //
2486
2487                 ExDeleteResourceLite( &pTargetDirEntry->NonPaged->Lock);
2488
2489                 AFSExFreePool( pTargetDirEntry->NonPaged);
2490
2491                 AFSExFreePool( pTargetDirEntry);
2492             }
2493
2494             pTargetDirEntry = NULL;
2495         }
2496
2497 try_exit:
2498
2499
2500         if( !NT_SUCCESS( ntStatus))
2501         {
2502
2503             if( bReplaceTmpTargetEntry)
2504             {
2505
2506                 AFSNotifyRename( pTargetDirEntry->ObjectInformation,
2507                                  pTargetDirEntry->ObjectInformation->ParentObjectInformation,
2508                                  pTargetDcb->ObjectInformation,
2509                                  pTargetDirEntry,
2510                                  &uniTargetName,
2511                                  &stTmpTargetFid);
2512
2513                 //
2514                 // Replace the target entry
2515                 //
2516
2517                 AFSAcquireExcl( pTargetDirEntry->ObjectInformation->VolumeCB->ObjectInfoTree.TreeLock,
2518                                 TRUE);
2519
2520                 if( pTargetDirEntry->ObjectInformation->VolumeCB->ObjectInfoTree.TreeHead == NULL)
2521                 {
2522
2523                     pTargetDirEntry->ObjectInformation->VolumeCB->ObjectInfoTree.TreeHead = &pTargetDirEntry->ObjectInformation->TreeEntry;
2524                 }
2525                 else
2526                 {
2527                     AFSInsertHashEntry( pTargetDirEntry->ObjectInformation->VolumeCB->ObjectInfoTree.TreeHead,
2528                                         &pTargetDirEntry->ObjectInformation->TreeEntry);
2529                 }
2530
2531                 AFSReleaseResource( pTargetDirEntry->ObjectInformation->VolumeCB->ObjectInfoTree.TreeLock);
2532
2533                 //
2534                 // We always need to update the FileIndex since this entry will be put at the 'end'
2535                 // of the enumeraiton list. If we don't it will cause recursion ...
2536                 //
2537
2538                 pTargetDirEntry->FileIndex = (ULONG)InterlockedIncrement( &pTargetDirEntry->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.ContentIndex);
2539
2540                 AFSInsertDirectoryNode( pTargetDirEntry->ObjectInformation->ParentObjectInformation,
2541                                         pTargetDirEntry,
2542                                         TRUE);
2543             }
2544         }
2545
2546         if( pTargetDirEntry != NULL)
2547         {
2548
2549             InterlockedDecrement( &pTargetDirEntry->OpenReferenceCount);
2550         }
2551
2552         if( uniTmpTargetName.Buffer != NULL)
2553         {
2554
2555             AFSExFreePool( uniTmpTargetName.Buffer);
2556         }
2557     }
2558
2559     return ntStatus;
2560 }
2561
2562 NTSTATUS
2563 AFSSetPositionInfo( IN PIRP Irp,
2564                     IN AFSDirectoryCB *DirectoryCB)
2565 {
2566     NTSTATUS ntStatus = STATUS_SUCCESS;
2567     PFILE_POSITION_INFORMATION pBuffer;
2568     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2569
2570     pBuffer = (PFILE_POSITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2571
2572     pIrpSp->FileObject->CurrentByteOffset.QuadPart = pBuffer->CurrentByteOffset.QuadPart;
2573
2574     return ntStatus;
2575 }
2576
2577 NTSTATUS
2578 AFSSetAllocationInfo( IN PIRP Irp,
2579                       IN AFSDirectoryCB *DirectoryCB)
2580 {
2581     NTSTATUS ntStatus = STATUS_SUCCESS;
2582     PFILE_ALLOCATION_INFORMATION pBuffer;
2583     BOOLEAN bReleasePaging = FALSE;
2584     BOOLEAN bTellCc = FALSE;
2585     BOOLEAN bTellService = FALSE;
2586     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2587     PFILE_OBJECT pFileObject = pIrpSp->FileObject;
2588     AFSFcb *pFcb = NULL;
2589     AFSCcb *pCcb = NULL;
2590     LARGE_INTEGER liSaveAlloc;
2591     LARGE_INTEGER liSaveFileSize;
2592     LARGE_INTEGER liSaveVDL;
2593
2594     pBuffer = (PFILE_ALLOCATION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2595
2596     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
2597
2598     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
2599
2600     //
2601     // save values to put back
2602     //
2603     liSaveAlloc = pFcb->Header.AllocationSize;
2604     liSaveFileSize = pFcb->Header.FileSize;
2605     liSaveVDL = pFcb->Header.ValidDataLength;
2606
2607     if( pFcb->Header.AllocationSize.QuadPart == pBuffer->AllocationSize.QuadPart ||
2608         pIrpSp->Parameters.SetFile.AdvanceOnly)
2609     {
2610         return STATUS_SUCCESS ;
2611     }
2612
2613     if( pFcb->Header.AllocationSize.QuadPart > pBuffer->AllocationSize.QuadPart)
2614     {
2615         //
2616         // Truncating the file
2617         //
2618         if( !MmCanFileBeTruncated( pFileObject->SectionObjectPointer,
2619                                    &pBuffer->AllocationSize))
2620         {
2621
2622             ntStatus = STATUS_USER_MAPPED_FILE ;
2623         }
2624         else
2625         {
2626             //
2627             // If this is a truncation we need to grab the paging IO resource.
2628             //
2629             AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
2630                           AFS_TRACE_LEVEL_VERBOSE,
2631                           "AFSSetAllocationInfo Acquiring Fcb PagingIo lock %08lX EXCL %08lX\n",
2632                           &pFcb->NPFcb->PagingResource,
2633                           PsGetCurrentThread());
2634
2635             AFSAcquireExcl( &pFcb->NPFcb->PagingResource,
2636                             TRUE);
2637
2638             bReleasePaging = TRUE;
2639
2640
2641             pFcb->Header.AllocationSize = pBuffer->AllocationSize;
2642
2643             pFcb->ObjectInformation->AllocationSize = pBuffer->AllocationSize;
2644
2645             //
2646             // Tell Cc that Allocation is moved.
2647             //
2648             bTellCc = TRUE;
2649
2650             if( pFcb->Header.FileSize.QuadPart > pBuffer->AllocationSize.QuadPart)
2651             {
2652                 //
2653                 // We are pulling the EOF back as well so we need to tell
2654                 // the service.
2655                 //
2656                 bTellService = TRUE;
2657
2658                 pFcb->Header.FileSize = pBuffer->AllocationSize;
2659
2660                 pFcb->ObjectInformation->EndOfFile = pBuffer->AllocationSize;
2661             }
2662
2663         }
2664     }
2665     else
2666     {
2667         //
2668         // Tell Cc if allocation is increased.
2669         //
2670         bTellCc = pBuffer->AllocationSize.QuadPart > pFcb->Header.AllocationSize.QuadPart;
2671
2672         pFcb->Header.AllocationSize = pBuffer->AllocationSize;
2673
2674         pFcb->ObjectInformation->AllocationSize = pBuffer->AllocationSize;
2675     }
2676
2677     //
2678     // Now Tell the server if we have to
2679     //
2680     if (bTellService)
2681     {
2682         ntStatus = AFSUpdateFileInformation( &pFcb->ObjectInformation->ParentObjectInformation->FileId,
2683                                              pFcb->ObjectInformation,
2684                                              &pFcb->AuthGroup);
2685     }
2686
2687     if (NT_SUCCESS(ntStatus))
2688     {
2689         //
2690         // Trim extents if we told the service - the update has done an implicit
2691         // trim at the service.
2692         //
2693         if (bTellService)
2694         {
2695             AFSTrimExtents( pFcb,
2696                             &pFcb->Header.FileSize);
2697         }
2698
2699         KeQuerySystemTime( &pFcb->ObjectInformation->ChangeTime);
2700
2701         SetFlag( pFcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CHANGE_TIME);
2702
2703         if (bTellCc &&
2704             CcIsFileCached( pFileObject))
2705         {
2706             CcSetFileSizes( pFileObject,
2707                             (PCC_FILE_SIZES)&pFcb->Header.AllocationSize);
2708         }
2709     }
2710     else
2711     {
2712         //
2713         // Put the saved values back
2714         //
2715         pFcb->Header.ValidDataLength = liSaveVDL;
2716         pFcb->Header.FileSize = liSaveFileSize;
2717         pFcb->Header.AllocationSize = liSaveAlloc;
2718         pFcb->ObjectInformation->EndOfFile = liSaveFileSize;
2719         pFcb->ObjectInformation->AllocationSize = liSaveAlloc;
2720     }
2721
2722     if( bReleasePaging)
2723     {
2724
2725         AFSReleaseResource( &pFcb->NPFcb->PagingResource);
2726     }
2727
2728     return ntStatus;
2729 }
2730
2731 NTSTATUS
2732 AFSSetEndOfFileInfo( IN PIRP Irp,
2733                      IN AFSDirectoryCB *DirectoryCB)
2734 {
2735     NTSTATUS ntStatus = STATUS_SUCCESS;
2736     PFILE_END_OF_FILE_INFORMATION pBuffer;
2737     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2738     PFILE_OBJECT pFileObject = pIrpSp->FileObject;
2739     LARGE_INTEGER liSaveSize;
2740     LARGE_INTEGER liSaveVDL;
2741     LARGE_INTEGER liSaveAlloc;
2742     BOOLEAN bModified = FALSE;
2743     BOOLEAN bReleasePaging = FALSE;
2744     BOOLEAN bTruncated = FALSE;
2745     AFSFcb *pFcb = NULL;
2746     AFSCcb *pCcb = NULL;
2747
2748     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
2749
2750     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
2751
2752     pBuffer = (PFILE_END_OF_FILE_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2753
2754     liSaveSize = pFcb->Header.FileSize;
2755     liSaveAlloc = pFcb->Header.AllocationSize;
2756     liSaveVDL = pFcb->Header.ValidDataLength;
2757
2758     if( pFcb->Header.FileSize.QuadPart != pBuffer->EndOfFile.QuadPart &&
2759         !pIrpSp->Parameters.SetFile.AdvanceOnly)
2760     {
2761
2762         if( pBuffer->EndOfFile.QuadPart < pFcb->Header.FileSize.QuadPart)
2763         {
2764
2765             // Truncating the file
2766             if( !MmCanFileBeTruncated( pFileObject->SectionObjectPointer,
2767                                        &pBuffer->EndOfFile))
2768             {
2769
2770                 ntStatus = STATUS_USER_MAPPED_FILE;
2771             }
2772             else
2773             {
2774                 //
2775                 // If this is a truncation we need to grab the paging
2776                 // IO resource.
2777                 //
2778                 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
2779                               AFS_TRACE_LEVEL_VERBOSE,
2780                               "AFSSetAllocationInfo Acquiring Fcb PagingIo lock %08lX EXCL %08lX\n",
2781                               &pFcb->NPFcb->PagingResource,
2782                               PsGetCurrentThread());
2783
2784                 AFSAcquireExcl( &pFcb->NPFcb->PagingResource,
2785                                 TRUE);
2786
2787                 bReleasePaging = TRUE;
2788
2789                 pFcb->Header.AllocationSize = pBuffer->EndOfFile;
2790
2791                 pFcb->Header.FileSize = pBuffer->EndOfFile;
2792
2793                 pFcb->ObjectInformation->EndOfFile = pBuffer->EndOfFile;
2794
2795                 pFcb->ObjectInformation->AllocationSize = pBuffer->EndOfFile;
2796
2797                 if( pFcb->Header.ValidDataLength.QuadPart > pFcb->Header.FileSize.QuadPart)
2798                 {
2799
2800                     pFcb->Header.ValidDataLength = pFcb->Header.FileSize;
2801                 }
2802
2803                 bTruncated = TRUE;
2804
2805                 bModified = TRUE;
2806             }
2807         }
2808         else
2809         {
2810             //
2811             // extending the file, move EOF
2812             //
2813
2814             pFcb->Header.FileSize = pBuffer->EndOfFile;
2815
2816             pFcb->ObjectInformation->EndOfFile = pBuffer->EndOfFile;
2817
2818             if (pFcb->Header.FileSize.QuadPart > pFcb->Header.AllocationSize.QuadPart)
2819             {
2820                 //
2821                 // And Allocation as needed.
2822                 //
2823                 pFcb->Header.AllocationSize = pBuffer->EndOfFile;
2824
2825                 pFcb->ObjectInformation->AllocationSize = pBuffer->EndOfFile;
2826             }
2827
2828             bModified = TRUE;
2829         }
2830     }
2831
2832     if (bModified)
2833     {
2834
2835         KeQuerySystemTime( &pFcb->ObjectInformation->ChangeTime);
2836
2837         SetFlag( pFcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CHANGE_TIME);
2838
2839         //
2840         // Tell the server
2841         //
2842
2843         ntStatus = AFSUpdateFileInformation( &pFcb->ObjectInformation->ParentObjectInformation->FileId,
2844                                              pFcb->ObjectInformation,
2845                                              &pFcb->AuthGroup);
2846
2847         if( NT_SUCCESS(ntStatus))
2848         {
2849             //
2850             // We are now good to go so tell CC.
2851             //
2852             CcSetFileSizes( pFileObject,
2853                             (PCC_FILE_SIZES)&pFcb->Header.AllocationSize);
2854
2855             //
2856             // And give up those extents
2857             //
2858             if( bTruncated)
2859             {
2860
2861                 AFSTrimExtents( pFcb,
2862                                 &pFcb->Header.FileSize);
2863             }
2864         }
2865         else
2866         {
2867             pFcb->Header.ValidDataLength = liSaveVDL;
2868             pFcb->Header.FileSize = liSaveSize;
2869             pFcb->Header.AllocationSize = liSaveAlloc;
2870             pFcb->ObjectInformation->EndOfFile = liSaveSize;
2871             pFcb->ObjectInformation->AllocationSize = liSaveAlloc;
2872         }
2873     }
2874
2875     if( bReleasePaging)
2876     {
2877
2878         AFSReleaseResource( &pFcb->NPFcb->PagingResource);
2879     }
2880
2881     return ntStatus;
2882 }
2883
2884 NTSTATUS
2885 AFSProcessShareSetInfo( IN IRP *Irp,
2886                         IN AFSFcb *Fcb,
2887                         IN AFSCcb *Ccb)
2888 {
2889
2890     NTSTATUS ntStatus = STATUS_SUCCESS;
2891     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2892     ULONG ulOutputBufferLen = 0, ulInputBufferLen;
2893     FILE_INFORMATION_CLASS ulFileInformationClass;
2894     void *pPipeInfo = NULL;
2895
2896     __Enter
2897     {
2898         ulFileInformationClass = pIrpSp->Parameters.SetFile.FileInformationClass;
2899
2900         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2901                       AFS_TRACE_LEVEL_VERBOSE,
2902                       "AFSProcessShareSetInfo On pipe %wZ Class %08lX\n",
2903                       &Ccb->DirectoryCB->NameInformation.FileName,
2904                       ulFileInformationClass);
2905
2906         pPipeInfo = AFSLockSystemBuffer( Irp,
2907                                          pIrpSp->Parameters.SetFile.Length);
2908
2909         if( pPipeInfo == NULL)
2910         {
2911
2912             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2913                           AFS_TRACE_LEVEL_ERROR,
2914                           "AFSProcessShareSetInfo Failed to lock buffer on pipe %wZ\n",
2915                           &Ccb->DirectoryCB->NameInformation.FileName);
2916
2917             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2918         }
2919
2920         //
2921         // Send the request to the service
2922         //
2923
2924         ntStatus = AFSNotifySetPipeInfo( Ccb,
2925                                          (ULONG)ulFileInformationClass,
2926                                          pIrpSp->Parameters.SetFile.Length,
2927                                          pPipeInfo);
2928
2929         if( !NT_SUCCESS( ntStatus))
2930         {
2931
2932             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2933                           AFS_TRACE_LEVEL_ERROR,
2934                           "AFSProcessShareSetInfo Failed to send request to service on pipe %wZ Status %08lX\n",
2935                           &Ccb->DirectoryCB->NameInformation.FileName,
2936                           ntStatus);
2937
2938             try_return( ntStatus);
2939         }
2940
2941         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2942                       AFS_TRACE_LEVEL_VERBOSE,
2943                       "AFSProcessShareSetInfo Completed request on pipe %wZ Class %08lX\n",
2944                       &Ccb->DirectoryCB->NameInformation.FileName,
2945                       ulFileInformationClass);
2946
2947 try_exit:
2948
2949         NOTHING;
2950     }
2951
2952     return ntStatus;
2953 }
2954
2955 NTSTATUS
2956 AFSProcessShareQueryInfo( IN IRP *Irp,
2957                           IN AFSFcb *Fcb,
2958                           IN AFSCcb *Ccb)
2959 {
2960
2961     NTSTATUS ntStatus = STATUS_SUCCESS;
2962     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2963     ULONG ulOutputBufferLen = 0, ulInputBufferLen;
2964     FILE_INFORMATION_CLASS ulFileInformationClass;
2965     void *pPipeInfo = NULL;
2966
2967     __Enter
2968     {
2969
2970         ulFileInformationClass = pIrpSp->Parameters.QueryFile.FileInformationClass;
2971
2972         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2973                       AFS_TRACE_LEVEL_VERBOSE,
2974                       "AFSProcessShareQueryInfo On pipe %wZ Class %08lX\n",
2975                       &Ccb->DirectoryCB->NameInformation.FileName,
2976                       ulFileInformationClass);
2977
2978         pPipeInfo = AFSLockSystemBuffer( Irp,
2979                                          pIrpSp->Parameters.QueryFile.Length);
2980
2981         if( pPipeInfo == NULL)
2982         {
2983
2984             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2985                           AFS_TRACE_LEVEL_ERROR,
2986                           "AFSProcessShareQueryInfo Failed to lock buffer on pipe %wZ\n",
2987                           &Ccb->DirectoryCB->NameInformation.FileName);
2988
2989             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2990         }
2991
2992         //
2993         // Send the request to the service
2994         //
2995
2996         ntStatus = AFSNotifyQueryPipeInfo( Ccb,
2997                                            (ULONG)ulFileInformationClass,
2998                                            pIrpSp->Parameters.QueryFile.Length,
2999                                            pPipeInfo,
3000                                            (ULONG *)&Irp->IoStatus.Information);
3001
3002         if( !NT_SUCCESS( ntStatus))
3003         {
3004
3005             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3006                           AFS_TRACE_LEVEL_ERROR,
3007                           "AFSProcessShareQueryInfo Failed to send request to service on pipe %wZ Status %08lX\n",
3008                           &Ccb->DirectoryCB->NameInformation.FileName,
3009                           ntStatus);
3010
3011             try_return( ntStatus);
3012         }
3013
3014         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3015                       AFS_TRACE_LEVEL_VERBOSE,
3016                       "AFSProcessShareQueryInfo Completed request on pipe %wZ Class %08lX\n",
3017                       &Ccb->DirectoryCB->NameInformation.FileName,
3018                       ulFileInformationClass);
3019
3020 try_exit:
3021
3022         NOTHING;
3023     }
3024
3025     return ntStatus;
3026 }
3027
3028 NTSTATUS
3029 AFSProcessPIOCtlQueryInfo( IN IRP *Irp,
3030                            IN AFSFcb *Fcb,
3031                            IN AFSCcb *Ccb,
3032                            IN OUT LONG *Length)
3033 {
3034
3035     NTSTATUS ntStatus = STATUS_SUCCESS;
3036     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
3037     FILE_INFORMATION_CLASS ulFileInformationClass;
3038
3039     __Enter
3040     {
3041
3042         ulFileInformationClass = pIrpSp->Parameters.QueryFile.FileInformationClass;
3043
3044         switch( ulFileInformationClass)
3045         {
3046
3047             case FileBasicInformation:
3048             {
3049
3050                 if ( *Length >= sizeof( FILE_BASIC_INFORMATION))
3051                 {
3052                     PFILE_BASIC_INFORMATION pBasic = (PFILE_BASIC_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
3053
3054                     pBasic->CreationTime.QuadPart = 0;
3055                     pBasic->LastAccessTime.QuadPart = 0;
3056                     pBasic->ChangeTime.QuadPart = 0;
3057                     pBasic->LastWriteTime.QuadPart = 0;
3058                     pBasic->FileAttributes = FILE_ATTRIBUTE_SYSTEM;
3059
3060                     *Length -= sizeof( FILE_BASIC_INFORMATION);
3061                 }
3062                 else
3063                 {
3064                     ntStatus = STATUS_BUFFER_OVERFLOW;
3065                 }
3066
3067                 break;
3068             }
3069
3070             case FileStandardInformation:
3071             {
3072
3073                 if ( *Length >= sizeof( FILE_STANDARD_INFORMATION))
3074                 {
3075                     PFILE_STANDARD_INFORMATION pStandard = (PFILE_STANDARD_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
3076
3077                     pStandard->NumberOfLinks = 1;
3078                     pStandard->DeletePending = 0;
3079                     pStandard->AllocationSize.QuadPart = 4096;
3080                     pStandard->EndOfFile.QuadPart = 4096;
3081                     pStandard->Directory = 0;
3082
3083                     *Length -= sizeof( FILE_STANDARD_INFORMATION);
3084                 }
3085                 else
3086                 {
3087                     ntStatus = STATUS_BUFFER_OVERFLOW;
3088                 }
3089
3090                 break;
3091             }
3092
3093             case FileNameInformation:
3094             {
3095
3096                 ULONG ulCopyLength = 0;
3097                 AFSFcb *pFcb = NULL;
3098                 AFSCcb *pCcb = NULL;
3099                 USHORT usFullNameLength = 0;
3100                 PFILE_NAME_INFORMATION pNameInfo = (PFILE_NAME_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
3101                 UNICODE_STRING uniName;
3102
3103                 pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
3104                 pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
3105
3106                 if( *Length < FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
3107                 {
3108                     ntStatus = STATUS_BUFFER_TOO_SMALL;
3109                     break;
3110                 }
3111
3112                 RtlZeroMemory( pNameInfo,
3113                                *Length);
3114
3115                 usFullNameLength = sizeof( WCHAR) +
3116                                             AFSServerName.Length +
3117                                             pCcb->FullFileName.Length;
3118
3119                 if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)usFullNameLength))
3120                 {
3121                     ulCopyLength = (LONG)usFullNameLength;
3122                 }
3123                 else
3124                 {
3125                     ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
3126                     ntStatus = STATUS_BUFFER_OVERFLOW;
3127                 }
3128
3129                 pNameInfo->FileNameLength = (ULONG)usFullNameLength;
3130
3131                 *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
3132
3133                 if( ulCopyLength > 0)
3134                 {
3135
3136                     pNameInfo->FileName[ 0] = L'\\';
3137                     ulCopyLength -= sizeof( WCHAR);
3138
3139                     *Length -= sizeof( WCHAR);
3140
3141                     if( ulCopyLength >= AFSServerName.Length)
3142                     {
3143
3144                         RtlCopyMemory( &pNameInfo->FileName[ 1],
3145                                        AFSServerName.Buffer,
3146                                        AFSServerName.Length);
3147
3148                         ulCopyLength -= AFSServerName.Length;
3149                         *Length -= AFSServerName.Length;
3150
3151                         if( ulCopyLength >= pCcb->FullFileName.Length)
3152                         {
3153
3154                             RtlCopyMemory( &pNameInfo->FileName[ 1 + (AFSServerName.Length/sizeof( WCHAR))],
3155                                            pCcb->FullFileName.Buffer,
3156                                            pCcb->FullFileName.Length);
3157
3158                             ulCopyLength -= pCcb->FullFileName.Length;
3159                             *Length -= pCcb->FullFileName.Length;
3160
3161                             uniName.Length = (USHORT)pNameInfo->FileNameLength;
3162                             uniName.MaximumLength = uniName.Length;
3163                             uniName.Buffer = pNameInfo->FileName;
3164                         }
3165                         else
3166                         {
3167
3168                             RtlCopyMemory( &pNameInfo->FileName[ 1 + (AFSServerName.Length/sizeof( WCHAR))],
3169                                            pCcb->FullFileName.Buffer,
3170                                            ulCopyLength);
3171
3172                             *Length -= ulCopyLength;
3173
3174                             uniName.Length = (USHORT)(sizeof( WCHAR) + AFSServerName.Length + ulCopyLength);
3175                             uniName.MaximumLength = uniName.Length;
3176                             uniName.Buffer = pNameInfo->FileName;
3177                         }
3178
3179                         AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3180                                       AFS_TRACE_LEVEL_VERBOSE,
3181                                       "AFSProcessPIOCtlQueryInfo (FileNameInformation) Returning %wZ\n",
3182                                       &uniName);
3183                     }
3184                 }
3185
3186                 break;
3187             }
3188
3189             case FileInternalInformation:
3190             {
3191
3192                 PFILE_INTERNAL_INFORMATION pInternalInfo = (PFILE_INTERNAL_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
3193
3194                 if( *Length >= sizeof( FILE_INTERNAL_INFORMATION))
3195                 {
3196
3197                     pInternalInfo->IndexNumber.HighPart = 0;
3198
3199                     pInternalInfo->IndexNumber.LowPart = 0;
3200
3201                     *Length -= sizeof( FILE_INTERNAL_INFORMATION);
3202                 }
3203                 else
3204                 {
3205
3206                     ntStatus = STATUS_BUFFER_TOO_SMALL;
3207                 }
3208
3209                 break;
3210             }
3211
3212             default:
3213             {
3214                 ntStatus = STATUS_INVALID_PARAMETER;
3215
3216                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3217                               AFS_TRACE_LEVEL_WARNING,
3218                               "AFSProcessPIOCtlQueryInfo Not handling request %08lX\n",
3219                               ulFileInformationClass);
3220
3221                 break;
3222             }
3223         }
3224     }
3225
3226     return ntStatus;
3227 }
3228