2 * Copyright (c) 2008, 2009, 2010, 2011 Kernel Drivers, LLC.
3 * Copyright (c) 2009, 2010, 2011 Your File System, Inc.
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7 * modification, are permitted provided that the following conditions
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36 // File: AFSNameSupport.cpp
39 #include "AFSCommon.h"
42 AFSLocateNameEntry( IN GUID *AuthGroup,
43 IN PFILE_OBJECT FileObject,
44 IN UNICODE_STRING *RootPathName,
45 IN UNICODE_STRING *ParsedPathName,
46 IN AFSNameArrayHdr *NameArray,
48 OUT AFSVolumeCB **VolumeCB,
49 IN OUT AFSDirectoryCB **ParentDirectoryCB,
50 OUT AFSDirectoryCB **DirectoryCB,
51 OUT PUNICODE_STRING ComponentName)
54 NTSTATUS ntStatus = STATUS_SUCCESS;
55 UNICODE_STRING uniPathName, uniComponentName, uniRemainingPath, uniSearchName, uniFullPathName;
57 AFSDirectoryCB *pDirEntry = NULL, *pParentDirEntry = NULL;
58 AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
59 UNICODE_STRING uniSysName;
60 ULONG ulSubstituteIndex = 0;
61 BOOLEAN bSubstituteName = FALSE;
62 AFSNameArrayHdr *pNameArray = NameArray;
63 BOOLEAN bAllocatedSymLinkBuffer = FALSE;
64 UNICODE_STRING uniRelativeName, uniNoOpName;
65 AFSObjectInfoCB *pCurrentObject = NULL;
66 AFSVolumeCB *pCurrentVolume = *VolumeCB;
67 BOOLEAN bReleaseCurrentVolume = TRUE;
68 BOOLEAN bSubstitutedName = FALSE;
73 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
74 AFS_TRACE_LEVEL_VERBOSE_2,
75 "AFSLocateNameEntry (FO: %08lX) Processing full name %wZ\n",
79 RtlInitUnicodeString( &uniSysName,
82 RtlInitUnicodeString( &uniRelativeName,
85 RtlInitUnicodeString( &uniNoOpName,
89 // Cleanup some parameters
92 if( ComponentName != NULL)
95 ComponentName->Length = 0;
96 ComponentName->MaximumLength = 0;
97 ComponentName->Buffer = NULL;
101 // We will parse through the filename, locating the directory nodes until we encounter a cache miss
102 // Starting at the root node
105 pParentDirEntry = NULL;
107 pDirEntry = *ParentDirectoryCB;
109 uniPathName = *ParsedPathName;
111 uniFullPathName = *RootPathName;
113 uniComponentName.Length = uniComponentName.MaximumLength = 0;
114 uniComponentName.Buffer = NULL;
116 uniRemainingPath.Length = uniRemainingPath.MaximumLength = 0;
117 uniRemainingPath.Buffer = NULL;
119 uniSearchName.Length = uniSearchName.MaximumLength = 0;
120 uniSearchName.Buffer = NULL;
122 ASSERT( pCurrentVolume->VolumeReferenceCount > 1);
128 // Check our total link count for this name array
131 if( pNameArray->LinkCount >= (LONG)pDevExt->Specific.RDR.MaxLinkCount)
134 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
137 pCurrentObject = pDirEntry->ObjectInformation;
139 KeQueryTickCount( &pCurrentObject->LastAccessCount);
142 // Check that the directory entry is not deleted or pending delete
145 if( BooleanFlagOn( pDirEntry->Flags, AFS_DIR_ENTRY_DELETED))
148 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
149 AFS_TRACE_LEVEL_ERROR,
150 "AFSLocateNameEntry (FO: %08lX) Deleted parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
152 &pDirEntry->NameInformation.FileName,
153 pCurrentObject->FileId.Cell,
154 pCurrentObject->FileId.Volume,
155 pCurrentObject->FileId.Vnode,
156 pCurrentObject->FileId.Unique,
159 try_return( ntStatus = STATUS_FILE_DELETED);
162 if( BooleanFlagOn( pDirEntry->Flags, AFS_DIR_ENTRY_PENDING_DELETE))
165 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
166 AFS_TRACE_LEVEL_ERROR,
167 "AFSLocateNameEntry (FO: %08lX) Delete pending on %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
169 &pDirEntry->NameInformation.FileName,
170 pCurrentObject->FileId.Cell,
171 pCurrentObject->FileId.Volume,
172 pCurrentObject->FileId.Vnode,
173 pCurrentObject->FileId.Unique,
176 try_return( ntStatus = STATUS_DELETE_PENDING);
180 // Check if the directory requires verification
183 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_VERIFY) &&
184 ( pCurrentObject->FileType != AFS_FILE_TYPE_DIRECTORY ||
185 !AFSIsEnumerationInProcess( pCurrentObject)))
188 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
189 AFS_TRACE_LEVEL_VERBOSE,
190 "AFSLocateNameEntry (FO: %08lX) Verifying parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
192 &pDirEntry->NameInformation.FileName,
193 pCurrentObject->FileId.Cell,
194 pCurrentObject->FileId.Volume,
195 pCurrentObject->FileId.Vnode,
196 pCurrentObject->FileId.Unique);
198 ntStatus = AFSVerifyEntry( AuthGroup,
201 if( !NT_SUCCESS( ntStatus))
204 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
205 AFS_TRACE_LEVEL_ERROR,
206 "AFSLocateNameEntry (FO: %08lX) Failed to verify parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
208 &pDirEntry->NameInformation.FileName,
209 pCurrentObject->FileId.Cell,
210 pCurrentObject->FileId.Volume,
211 pCurrentObject->FileId.Vnode,
212 pCurrentObject->FileId.Unique,
215 try_return( ntStatus);
220 // Ensure the parent node has been evaluated, if not then go do it now
223 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_NOT_EVALUATED) ||
224 pCurrentObject->FileType == AFS_FILE_TYPE_UNKNOWN)
227 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
228 AFS_TRACE_LEVEL_VERBOSE,
229 "AFSLocateNameEntry (FO: %08lX) Evaluating parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
231 &pDirEntry->NameInformation.FileName,
232 pCurrentObject->FileId.Cell,
233 pCurrentObject->FileId.Volume,
234 pCurrentObject->FileId.Vnode,
235 pCurrentObject->FileId.Unique);
237 ntStatus = AFSEvaluateNode( AuthGroup,
240 if( !NT_SUCCESS( ntStatus))
243 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
244 AFS_TRACE_LEVEL_ERROR,
245 "AFSLocateNameEntry (FO: %08lX) Failed to evaluate parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
247 &pDirEntry->NameInformation.FileName,
248 pCurrentObject->FileId.Cell,
249 pCurrentObject->FileId.Volume,
250 pCurrentObject->FileId.Vnode,
251 pCurrentObject->FileId.Unique,
254 try_return( ntStatus);
257 ClearFlag( pCurrentObject->Flags, AFS_OBJECT_FLAGS_NOT_EVALUATED);
261 // If this is a mount point or symlink then go get the real directory node
264 switch( pCurrentObject->FileType)
267 case AFS_FILE_TYPE_SYMLINK:
270 UNICODE_STRING uniTempName;
271 WCHAR *pTmpBuffer = NULL;
275 // Check if the flag is set to NOT evaluate a symlink
276 // and we are done with the parsing
279 if( BooleanFlagOn( Flags, AFS_LOCATE_FLAGS_NO_SL_TARGET_EVAL) &&
280 uniRemainingPath.Length == 0)
284 // Pass back the directory entries
287 *ParentDirectoryCB = pParentDirEntry;
289 *DirectoryCB = pDirEntry;
291 *VolumeCB = pCurrentVolume;
293 *RootPathName = uniFullPathName;
295 try_return( ntStatus);
298 AFSAcquireExcl( &pDirEntry->NonPaged->Lock,
301 if( pDirEntry->NameInformation.TargetName.Length == 0)
305 // We'll reset the DV to ensure we validate the metadata content
308 pCurrentObject->DataVersion.QuadPart = (ULONGLONG)-1;
310 SetFlag( pCurrentObject->Flags, AFS_OBJECT_FLAGS_VERIFY);
312 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
313 AFS_TRACE_LEVEL_VERBOSE,
314 "AFSLocateNameEntry (FO: %08lX) Verifying symlink parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
316 &pDirEntry->NameInformation.FileName,
317 pCurrentObject->FileId.Cell,
318 pCurrentObject->FileId.Volume,
319 pCurrentObject->FileId.Vnode,
320 pCurrentObject->FileId.Unique);
322 ntStatus = AFSVerifyEntry( AuthGroup,
325 if( !NT_SUCCESS( ntStatus))
328 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
329 AFS_TRACE_LEVEL_ERROR,
330 "AFSLocateNameEntry (FO: %08lX) Failed to verify symlink parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
332 &pDirEntry->NameInformation.FileName,
333 pCurrentObject->FileId.Cell,
334 pCurrentObject->FileId.Volume,
335 pCurrentObject->FileId.Vnode,
336 pCurrentObject->FileId.Unique,
339 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
341 try_return( ntStatus);
345 // If the type changed then reprocess this entry
348 if( pCurrentObject->FileType != AFS_FILE_TYPE_SYMLINK)
351 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
358 // If we were given a zero length target name then deny access to the entry
361 if( pDirEntry->NameInformation.TargetName.Length == 0)
364 ntStatus = STATUS_ACCESS_DENIED;
366 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
367 AFS_TRACE_LEVEL_ERROR,
368 "AFSLocateNameEntry (FO: %08lX) Failed to retrieve target name for symlink %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
370 &pDirEntry->NameInformation.FileName,
371 pCurrentObject->FileId.Cell,
372 pCurrentObject->FileId.Volume,
373 pCurrentObject->FileId.Vnode,
374 pCurrentObject->FileId.Unique,
377 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
379 try_return( ntStatus);
382 if( AFSIsRelativeName( &pDirEntry->NameInformation.TargetName))
385 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
386 AFS_TRACE_LEVEL_VERBOSE,
387 "AFSLocateNameEntry (FO: %08lX) Processing relative symlink target %wZ for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
389 &pDirEntry->NameInformation.TargetName,
390 &pDirEntry->NameInformation.FileName,
391 pCurrentObject->FileId.Cell,
392 pCurrentObject->FileId.Volume,
393 pCurrentObject->FileId.Vnode,
394 pCurrentObject->FileId.Unique);
397 // We'll substitute this name into the current process name
398 // starting at where we sit in the path
401 uniTempName.Length = 0;
402 uniTempName.MaximumLength = (USHORT)((char *)uniComponentName.Buffer - (char *)uniFullPathName.Buffer) +
403 pDirEntry->NameInformation.TargetName.Length +
405 uniRemainingPath.Length;
407 uniTempName.Buffer = (WCHAR *)AFSExAllocatePoolWithTag( PagedPool,
408 uniTempName.MaximumLength,
409 AFS_NAME_BUFFER_ONE_TAG);
411 if( uniTempName.Buffer == NULL)
414 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
416 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
420 // We have so first copy in the portion up to the component
424 RtlCopyMemory( uniTempName.Buffer,
425 uniFullPathName.Buffer,
426 (ULONG)((char *)uniComponentName.Buffer - (char *)uniFullPathName.Buffer));
428 uniTempName.Length = (USHORT)((char *)uniComponentName.Buffer - (char *)uniFullPathName.Buffer);
430 if( bAllocatedSymLinkBuffer ||
434 pTmpBuffer = uniFullPathName.Buffer;
437 bAllocatedSymLinkBuffer = TRUE;
440 // Have we parsed this name yet? Better have at least once ...
443 if( uniComponentName.Length == 0)
449 // Copy in the target name ...
452 RtlCopyMemory( &uniTempName.Buffer[ uniTempName.Length/sizeof( WCHAR)],
453 pDirEntry->NameInformation.TargetName.Buffer,
454 pDirEntry->NameInformation.TargetName.Length);
456 uniPathName.Buffer = &uniTempName.Buffer[ uniTempName.Length/sizeof( WCHAR)];
458 uniPathName.Length += pDirEntry->NameInformation.TargetName.Length;
459 uniPathName.MaximumLength = uniTempName.MaximumLength;
461 uniTempName.Length += pDirEntry->NameInformation.TargetName.Length;
464 // And now any remaining portion of the name
467 if( uniRemainingPath.Length > 0)
470 if( uniRemainingPath.Buffer[ 0] != L'\\')
473 uniRemainingPath.Buffer--;
474 uniRemainingPath.Length += sizeof( WCHAR);
476 uniPathName.Length += sizeof( WCHAR);
479 RtlCopyMemory( &uniTempName.Buffer[ uniTempName.Length/sizeof( WCHAR)],
480 uniRemainingPath.Buffer,
481 uniRemainingPath.Length);
483 uniTempName.Length += uniRemainingPath.Length;
486 uniFullPathName = uniTempName;
488 if( pTmpBuffer != NULL)
491 AFSExFreePool( pTmpBuffer);
494 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
497 // Dereference the current entry ..
500 InterlockedDecrement( &pDirEntry->OpenReferenceCount);
502 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
503 AFS_TRACE_LEVEL_VERBOSE,
504 "AFSLocateNameEntry Decrement1 count on %wZ DE %p Ccb %p Cnt %d\n",
505 &pDirEntry->NameInformation.FileName,
508 pDirEntry->OpenReferenceCount);
511 // OK, need to back up one entry for the correct parent since the current
512 // entry we are on is the symlink itself
515 pDirEntry = AFSBackupEntry( pNameArray);
518 // Increment our reference on this dir entry
521 InterlockedIncrement( &pDirEntry->OpenReferenceCount);
523 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
524 AFS_TRACE_LEVEL_VERBOSE,
525 "AFSLocateNameEntry Increment1 count on %wZ DE %p Ccb %p Cnt %d\n",
526 &pDirEntry->NameInformation.FileName,
529 pDirEntry->OpenReferenceCount);
531 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_ROOT_VOLUME))
534 pParentDirEntry = NULL;
539 pParentDirEntry = AFSGetParentEntry( pNameArray);
541 ASSERT( pParentDirEntry != pDirEntry);
547 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
548 AFS_TRACE_LEVEL_VERBOSE,
549 "AFSLocateNameEntry (FO: %08lX) Processing absolute symlink target %wZ for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
551 &pDirEntry->NameInformation.TargetName,
552 &pDirEntry->NameInformation.FileName,
553 pCurrentObject->FileId.Cell,
554 pCurrentObject->FileId.Volume,
555 pCurrentObject->FileId.Vnode,
556 pCurrentObject->FileId.Unique);
559 // We'll substitute this name into the current process name
560 // starting at where we sit in the path
563 uniTempName.Length = 0;
564 uniTempName.MaximumLength = pDirEntry->NameInformation.TargetName.Length +
566 uniRemainingPath.Length;
568 uniTempName.Buffer = (WCHAR *)AFSExAllocatePoolWithTag( PagedPool,
569 uniTempName.MaximumLength,
570 AFS_NAME_BUFFER_TWO_TAG);
572 if( uniTempName.Buffer == NULL)
575 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
577 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
580 if( bAllocatedSymLinkBuffer ||
584 pTmpBuffer = uniFullPathName.Buffer;
587 bAllocatedSymLinkBuffer = TRUE;
590 // Have we parsed this name yet? Better have at least once ...
593 if( uniComponentName.Length == 0)
599 // Copy in the target name ...
602 RtlCopyMemory( uniTempName.Buffer,
603 pDirEntry->NameInformation.TargetName.Buffer,
604 pDirEntry->NameInformation.TargetName.Length);
606 uniTempName.Length = pDirEntry->NameInformation.TargetName.Length;
609 // And now any remaining portion of the name
612 if( uniRemainingPath.Length > 0)
615 if( uniRemainingPath.Buffer[ 0] != L'\\')
618 uniRemainingPath.Buffer--;
619 uniRemainingPath.Length += sizeof( WCHAR);
622 RtlCopyMemory( &uniTempName.Buffer[ uniTempName.Length/sizeof( WCHAR)],
623 uniRemainingPath.Buffer,
624 uniRemainingPath.Length);
626 uniTempName.Length += uniRemainingPath.Length;
629 uniFullPathName = uniTempName;
631 uniPathName = uniTempName;
633 if( pTmpBuffer != NULL)
636 AFSExFreePool( pTmpBuffer);
639 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
642 // If our current volume is not the global root then make it so ...
645 if( pCurrentVolume != AFSGlobalRoot)
648 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
649 AFS_TRACE_LEVEL_VERBOSE,
650 "AFSLocateNameEntry (FO: %08lX) Current volume not global, resetting for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
652 &pDirEntry->NameInformation.FileName,
653 pCurrentObject->FileId.Cell,
654 pCurrentObject->FileId.Volume,
655 pCurrentObject->FileId.Vnode,
656 pCurrentObject->FileId.Unique);
658 InterlockedDecrement( &pCurrentVolume->VolumeReferenceCount);
660 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
661 AFS_TRACE_LEVEL_VERBOSE,
662 "AFSLocateNameEntry Decrement count on volume %08lX Cnt %d\n",
664 pCurrentVolume->VolumeReferenceCount);
666 AFSReleaseResource( pCurrentVolume->VolumeLock);
668 pCurrentVolume = AFSGlobalRoot;
670 AFSAcquireShared( pCurrentVolume->VolumeLock,
673 InterlockedIncrement( &pCurrentVolume->VolumeReferenceCount);
675 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
676 AFS_TRACE_LEVEL_VERBOSE,
677 "AFSLocateNameEntry Increment count on volume %08lX Cnt %d\n",
679 pCurrentVolume->VolumeReferenceCount);
683 // Dereference our current dir entry
686 InterlockedDecrement( &pDirEntry->OpenReferenceCount);
688 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
689 AFS_TRACE_LEVEL_VERBOSE,
690 "AFSLocateNameEntry Decrement2 count on %wZ DE %p Ccb %p Cnt %d\n",
691 &pDirEntry->NameInformation.FileName,
694 pDirEntry->OpenReferenceCount);
696 pDirEntry = pCurrentVolume->DirectoryCB;
699 // Reference the new dir entry
702 InterlockedIncrement( &pDirEntry->OpenReferenceCount);
704 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
705 AFS_TRACE_LEVEL_VERBOSE,
706 "AFSLocateNameEntry Increment2 count on %wZ DE %p Ccb %p Cnt %d\n",
707 &pDirEntry->NameInformation.FileName,
710 pDirEntry->OpenReferenceCount);
713 // Reset the name array
714 // Persist the link count in the name array
717 lLinkCount = pNameArray->LinkCount;
719 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
720 AFS_TRACE_LEVEL_VERBOSE,
721 "AFSLocateNameEntry (FO: %08lX) Resetting name array for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
723 &pDirEntry->NameInformation.FileName,
724 pCurrentObject->FileId.Cell,
725 pCurrentObject->FileId.Volume,
726 pCurrentObject->FileId.Vnode,
727 pCurrentObject->FileId.Unique);
729 AFSResetNameArray( pNameArray,
732 pNameArray->LinkCount = lLinkCount;
735 // Process over the \\<Global root> portion of the name
738 FsRtlDissectName( uniPathName,
742 if( RtlCompareUnicodeString( &uniComponentName,
747 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
748 AFS_TRACE_LEVEL_ERROR,
749 "AFSLocateNameEntry Name %wZ contains invalid server name\n",
753 // The correct response would be STATUS_OBJECT_PATH_INVALID
754 // but that prevents cmd.exe from performing a recursive
755 // directory enumeration when opening a directory entry
756 // that represents a symlink to an invalid path is discovered.
758 try_return( ntStatus = STATUS_OBJECT_PATH_NOT_FOUND);
761 uniPathName = uniRemainingPath;
763 pParentDirEntry = NULL;
767 // Increment our link count
770 InterlockedIncrement( &pNameArray->LinkCount);
775 case AFS_FILE_TYPE_MOUNTPOINT:
779 // Check if the flag is set to NOT evaluate a mount point
780 // and we are done with the parsing
783 if( BooleanFlagOn( Flags, AFS_LOCATE_FLAGS_NO_MP_TARGET_EVAL) &&
784 uniRemainingPath.Length == 0)
788 // Pass back the directory entries
791 *ParentDirectoryCB = pParentDirEntry;
793 *DirectoryCB = pDirEntry;
795 *VolumeCB = pCurrentVolume;
797 *RootPathName = uniFullPathName;
799 try_return( ntStatus);
802 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
803 AFS_TRACE_LEVEL_VERBOSE,
804 "AFSLocateNameEntry (FO: %08lX) Building MP target for parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
806 &pDirEntry->NameInformation.FileName,
807 pCurrentObject->FileId.Cell,
808 pCurrentObject->FileId.Volume,
809 pCurrentObject->FileId.Vnode,
810 pCurrentObject->FileId.Unique);
813 // Go retrieve the target entry for this node
814 // Release the current volume cb entry since we would
815 // have lock inversion in the following call
816 // Also decrement the ref count on the volume
819 ASSERT( pCurrentVolume->VolumeReferenceCount > 1);
821 InterlockedDecrement( &pCurrentVolume->VolumeReferenceCount);
823 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
824 AFS_TRACE_LEVEL_VERBOSE,
825 "AFSLocateNameEntry Decrement2 count on volume %08lX Cnt %d\n",
827 pCurrentVolume->VolumeReferenceCount);
829 AFSReleaseResource( pCurrentVolume->VolumeLock);
831 ntStatus = AFSBuildMountPointTarget( AuthGroup,
835 if( !NT_SUCCESS( ntStatus))
838 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
839 AFS_TRACE_LEVEL_ERROR,
840 "AFSLocateNameEntry (FO: %08lX) Failed to build MP target for parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
842 &pDirEntry->NameInformation.FileName,
843 pCurrentObject->FileId.Cell,
844 pCurrentObject->FileId.Volume,
845 pCurrentObject->FileId.Vnode,
846 pCurrentObject->FileId.Unique,
850 // We already decremented the current volume above
853 bReleaseCurrentVolume = FALSE;
855 try_return( ntStatus = STATUS_ACCESS_DENIED);
858 ASSERT( pCurrentVolume->VolumeReferenceCount > 1);
860 ASSERT( ExIsResourceAcquiredLite( pCurrentVolume->VolumeLock));
863 // Replace the current name for the mp with the volume root of the target
866 AFSReplaceCurrentElement( pNameArray,
867 pCurrentVolume->DirectoryCB);
870 // We want to restart processing here on the new parent ...
871 // Deref and ref count the entries
874 InterlockedDecrement( &pDirEntry->OpenReferenceCount);
876 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
877 AFS_TRACE_LEVEL_VERBOSE,
878 "AFSLocateNameEntry Decrement3 count on %wZ DE %p Ccb %p Cnt %d\n",
879 &pDirEntry->NameInformation.FileName,
882 pDirEntry->OpenReferenceCount);
884 pDirEntry = pCurrentVolume->DirectoryCB;
886 InterlockedIncrement( &pDirEntry->OpenReferenceCount);
888 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
889 AFS_TRACE_LEVEL_VERBOSE,
890 "AFSLocateNameEntry Increment3 count on %wZ DE %p Ccb %p Cnt %d\n",
891 &pDirEntry->NameInformation.FileName,
894 pDirEntry->OpenReferenceCount);
896 pParentDirEntry = NULL;
899 // Increment our link count
902 InterlockedIncrement( &pNameArray->LinkCount);
907 case AFS_FILE_TYPE_DFSLINK:
910 if( BooleanFlagOn( Flags, AFS_LOCATE_FLAGS_NO_DFS_LINK_EVAL))
914 // Pass back the directory entries
917 *ParentDirectoryCB = pParentDirEntry;
919 *DirectoryCB = pDirEntry;
921 *VolumeCB = pCurrentVolume;
923 *RootPathName = uniFullPathName;
925 try_return( ntStatus);
929 // This is a DFS link so we need to update the file name and return STATUS_REPARSE to the
930 // system for it to reevaluate it
933 if( FileObject != NULL)
936 ntStatus = AFSProcessDFSLink( pDirEntry,
944 // This is where we have been re-entered from an NP evaluation call via the BuildBranch()
948 ntStatus = STATUS_INVALID_PARAMETER;
951 if( ntStatus != STATUS_SUCCESS &&
952 ntStatus != STATUS_REPARSE)
955 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
956 AFS_TRACE_LEVEL_ERROR,
957 "AFSLocateNameEntry (FO: %08lX) Failed to process DFSLink parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
959 &pDirEntry->NameInformation.FileName,
960 pCurrentObject->FileId.Cell,
961 pCurrentObject->FileId.Volume,
962 pCurrentObject->FileId.Vnode,
963 pCurrentObject->FileId.Unique,
967 try_return( ntStatus);
970 case AFS_FILE_TYPE_UNKNOWN:
971 case AFS_FILE_TYPE_INVALID:
975 // Something was not processed ...
978 try_return( ntStatus = STATUS_ACCESS_DENIED);
981 } /* end of switch */
984 // If the parent is not initialized then do it now
987 if( pCurrentObject->FileType == AFS_FILE_TYPE_DIRECTORY &&
988 !BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
991 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
992 AFS_TRACE_LEVEL_VERBOSE,
993 "AFSLocateNameEntry (FO: %08lX) Enumerating parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
995 &pDirEntry->NameInformation.FileName,
996 pCurrentObject->FileId.Cell,
997 pCurrentObject->FileId.Volume,
998 pCurrentObject->FileId.Vnode,
999 pCurrentObject->FileId.Unique);
1001 AFSAcquireExcl( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1004 if( !BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
1007 ntStatus = AFSEnumerateDirectory( AuthGroup,
1011 if( !NT_SUCCESS( ntStatus))
1014 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1016 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1017 AFS_TRACE_LEVEL_ERROR,
1018 "AFSLocateNameEntry (FO: %08lX) Failed to enumerate parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1020 &pDirEntry->NameInformation.FileName,
1021 pCurrentObject->FileId.Cell,
1022 pCurrentObject->FileId.Volume,
1023 pCurrentObject->FileId.Vnode,
1024 pCurrentObject->FileId.Unique,
1027 try_return( ntStatus);
1030 SetFlag( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED);
1033 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1035 else if( pCurrentObject->FileType == AFS_FILE_TYPE_FILE)
1038 if( uniPathName.Length > 0)
1041 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1042 AFS_TRACE_LEVEL_ERROR,
1043 "AFSLocateNameEntry (FO: %08lX) Encountered file node %wZ FID %08lX-%08lX-%08lX-%08lX in path processing\n",
1045 &pDirEntry->NameInformation.FileName,
1046 pCurrentObject->FileId.Cell,
1047 pCurrentObject->FileId.Volume,
1048 pCurrentObject->FileId.Vnode,
1049 pCurrentObject->FileId.Unique);
1051 // The proper error code to return would be STATUS_OBJECT_PATH_INVALID because
1052 // one of the components of the path is not a directory. However, returning
1053 // that error prevents IIS 7 and 7.5 from being able to serve data out of AFS.
1054 // Instead IIS insists on treating the target file as if it is a directory containing
1055 // a potential web.config file. NTFS and LanMan return STATUS_OBJECT_PATH_NOT_FOUND.
1056 // AFS will follow suit.
1058 ntStatus = STATUS_OBJECT_PATH_NOT_FOUND;
1063 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1064 AFS_TRACE_LEVEL_VERBOSE,
1065 "AFSLocateNameEntry (FO: %08lX) Returning file %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1067 &pDirEntry->NameInformation.FileName,
1068 pCurrentObject->FileId.Cell,
1069 pCurrentObject->FileId.Volume,
1070 pCurrentObject->FileId.Vnode,
1071 pCurrentObject->FileId.Unique);
1074 // Pass back the directory entries
1077 *ParentDirectoryCB = pParentDirEntry;
1079 *DirectoryCB = pDirEntry;
1081 *VolumeCB = pCurrentVolume;
1083 *RootPathName = uniFullPathName;
1086 try_return( ntStatus);
1090 // If we are at the end of the processing, set our returned information and get out
1093 if( uniPathName.Length == 0)
1096 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1097 AFS_TRACE_LEVEL_VERBOSE,
1098 "AFSLocateNameEntry (FO: %08lX) Completed processing returning %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1100 &pDirEntry->NameInformation.FileName,
1101 pCurrentObject->FileId.Cell,
1102 pCurrentObject->FileId.Volume,
1103 pCurrentObject->FileId.Vnode,
1104 pCurrentObject->FileId.Unique);
1107 // Pass back the directory entries
1110 *ParentDirectoryCB = pParentDirEntry;
1112 *DirectoryCB = pDirEntry;
1114 *VolumeCB = pCurrentVolume;
1116 *RootPathName = uniFullPathName;
1118 try_return( ntStatus);
1122 // We may have returned to the top of the while( TRUE)
1124 if( bSubstituteName &&
1125 uniSearchName.Buffer != NULL)
1128 AFSExFreePool( uniSearchName.Buffer);
1130 bSubstituteName = FALSE;
1132 uniSearchName.Length = uniSearchName.MaximumLength = 0;
1133 uniSearchName.Buffer = NULL;
1136 ulSubstituteIndex = 1;
1138 ntStatus = STATUS_SUCCESS;
1141 // Get the next component name
1144 FsRtlDissectName( uniPathName,
1149 // Check for the . and .. in the path
1152 if( RtlCompareUnicodeString( &uniComponentName,
1157 uniPathName = uniRemainingPath;
1162 if( RtlCompareUnicodeString( &uniComponentName,
1167 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1168 AFS_TRACE_LEVEL_VERBOSE,
1169 "AFSLocateNameEntry (FO: %08lX) Backing up entry from %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1171 &pDirEntry->NameInformation.FileName,
1172 pCurrentObject->FileId.Cell,
1173 pCurrentObject->FileId.Volume,
1174 pCurrentObject->FileId.Vnode,
1175 pCurrentObject->FileId.Unique);
1178 // Need to back up one entry in the name array
1181 InterlockedDecrement( &pDirEntry->OpenReferenceCount);
1183 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1184 AFS_TRACE_LEVEL_VERBOSE,
1185 "AFSLocateNameEntry Decrement4 count on %wZ DE %p Ccb %p Cnt %d\n",
1186 &pDirEntry->NameInformation.FileName,
1189 pDirEntry->OpenReferenceCount);
1191 pDirEntry = AFSBackupEntry( NameArray);
1193 if( pDirEntry == NULL)
1196 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1197 AFS_TRACE_LEVEL_ERROR,
1198 "AFSLocateNameEntry AFSBackupEntry failed\n");
1200 try_return(ntStatus = STATUS_OBJECT_PATH_INVALID);
1203 InterlockedIncrement( &pDirEntry->OpenReferenceCount);
1205 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_ROOT_VOLUME))
1208 pParentDirEntry = NULL;
1213 pParentDirEntry = AFSGetParentEntry( pNameArray);
1215 ASSERT( pParentDirEntry != pDirEntry);
1218 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1219 AFS_TRACE_LEVEL_VERBOSE,
1220 "AFSLocateNameEntry Increment4 count on %wZ DE %p Ccb %p Cnt %d\n",
1221 &pDirEntry->NameInformation.FileName,
1224 pDirEntry->OpenReferenceCount);
1226 uniPathName = uniRemainingPath;
1232 // Update our pointers
1235 pParentDirEntry = pDirEntry;
1239 uniSearchName = uniComponentName;
1241 while( pDirEntry == NULL)
1245 // If the SearchName contains @SYS then we perform the substitution.
1246 // If there is no substitution we give up.
1249 if( !bSubstituteName &&
1250 FsRtlIsNameInExpression( &uniSysName,
1256 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1257 AFS_TRACE_LEVEL_VERBOSE_2,
1258 "AFSLocateNameEntry (FO: %08lX) Processing @SYS substitution for %wZ Index %08lX\n",
1263 ntStatus = AFSSubstituteSysName( &uniComponentName,
1267 if ( NT_SUCCESS( ntStatus))
1270 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1271 AFS_TRACE_LEVEL_VERBOSE_2,
1272 "AFSLocateNameEntry (FO: %08lX) Located substitution %wZ for %wZ Index %08lX\n",
1279 // Go reparse the name again
1282 bSubstituteName = TRUE;
1284 ulSubstituteIndex++; // For the next entry, if needed
1286 continue; // while( pDirEntry == NULL)
1291 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1292 AFS_TRACE_LEVEL_ERROR,
1293 "AFSLocateNameEntry (FO: %08lX) Failed to locate substitute string for %wZ Index %08lX Status %08lX\n",
1299 if( ntStatus == STATUS_OBJECT_NAME_NOT_FOUND)
1303 // Pass back the directory entries
1306 *ParentDirectoryCB = pParentDirEntry;
1308 *DirectoryCB = NULL;
1310 *VolumeCB = pCurrentVolume;
1312 if( ComponentName != NULL)
1315 *ComponentName = uniComponentName;
1318 *RootPathName = uniFullPathName;
1322 // We can't possibly have a pDirEntry since the lookup failed
1324 try_return( ntStatus);
1329 // Generate the CRC on the node and perform a case sensitive lookup
1332 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1333 AFS_TRACE_LEVEL_VERBOSE_2,
1334 "AFSLocateNameEntry (FO: %08lX) Searching for entry %wZ case sensitive\n",
1338 ulCRC = AFSGenerateCRC( &uniSearchName,
1341 AFSAcquireShared( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
1344 AFSLocateCaseSensitiveDirEntry( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
1348 if( pDirEntry == NULL)
1352 // Missed so perform a case insensitive lookup
1355 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1356 AFS_TRACE_LEVEL_VERBOSE_2,
1357 "AFSLocateNameEntry (FO: %08lX) Searching for entry %wZ case insensitive\n",
1361 ulCRC = AFSGenerateCRC( &uniSearchName,
1364 AFSLocateCaseInsensitiveDirEntry( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
1368 if( pDirEntry == NULL)
1372 // OK, if this component is a valid short name then try
1373 // a lookup in the short name tree
1376 if( RtlIsNameLegalDOS8Dot3( &uniSearchName,
1381 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1382 AFS_TRACE_LEVEL_VERBOSE_2,
1383 "AFSLocateNameEntry (FO: %08lX) Searching for entry %wZ short name\n",
1387 AFSLocateShortNameDirEntry( pParentDirEntry->ObjectInformation->Specific.Directory.ShortNameTree,
1392 if( pDirEntry == NULL)
1396 // If we substituted a name then reset our search name and try again
1399 if( bSubstituteName)
1402 AFSExFreePool( uniSearchName.Buffer);
1404 uniSearchName = uniComponentName;
1406 bSubstituteName = FALSE;
1408 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1410 continue; // while( pDirEntry == NULL)
1413 if( uniRemainingPath.Length > 0)
1416 ntStatus = STATUS_OBJECT_PATH_NOT_FOUND;
1421 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
1423 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1424 AFS_TRACE_LEVEL_VERBOSE,
1425 "AFSLocateNameEntry (FO: %08lX) Returning name not found for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1428 pCurrentObject->FileId.Cell,
1429 pCurrentObject->FileId.Volume,
1430 pCurrentObject->FileId.Vnode,
1431 pCurrentObject->FileId.Unique);
1434 // Pass back the directory entries
1437 *ParentDirectoryCB = pParentDirEntry;
1439 *DirectoryCB = NULL;
1441 *VolumeCB = pCurrentVolume;
1443 if( ComponentName != NULL)
1446 *ComponentName = uniComponentName;
1449 *RootPathName = uniFullPathName;
1452 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1455 // Node name not found so get out
1458 try_return( ntStatus); // while( pDirEntry == NULL)
1465 // Here we have a match on the case insensitive lookup for the name. If there
1466 // Is more than one link entry for this node then fail the lookup request
1469 if( !BooleanFlagOn( pDirEntry->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD) ||
1470 pDirEntry->CaseInsensitiveList.fLink != NULL)
1473 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1475 try_return(ntStatus = STATUS_OBJECT_NAME_COLLISION);
1480 if( pDirEntry != NULL)
1484 // If the verify flag is set on the parent and the current entry is deleted
1485 // revalidate the parent and search again.
1488 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_DELETED) &&
1489 BooleanFlagOn( pParentDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY))
1492 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1494 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1495 AFS_TRACE_LEVEL_VERBOSE,
1496 "AFSLocateNameEntry (FO: %08lX) Verifying(2) parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1498 &pParentDirEntry->NameInformation.FileName,
1499 pParentDirEntry->ObjectInformation->FileId.Cell,
1500 pParentDirEntry->ObjectInformation->FileId.Volume,
1501 pParentDirEntry->ObjectInformation->FileId.Vnode,
1502 pParentDirEntry->ObjectInformation->FileId.Unique);
1504 ntStatus = AFSVerifyEntry( AuthGroup,
1507 if( !NT_SUCCESS( ntStatus))
1510 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1511 AFS_TRACE_LEVEL_ERROR,
1512 "AFSLocateNameEntry (FO: %08lX) Failed to verify(2) parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1514 &pParentDirEntry->NameInformation.FileName,
1515 pParentDirEntry->ObjectInformation->FileId.Cell,
1516 pParentDirEntry->ObjectInformation->FileId.Volume,
1517 pParentDirEntry->ObjectInformation->FileId.Vnode,
1518 pParentDirEntry->ObjectInformation->FileId.Unique,
1521 try_return( ntStatus);
1524 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1525 AFS_TRACE_LEVEL_VERBOSE,
1526 "AFSLocateNameEntry (FO: %08lX) Reprocessing component %wZ in parent %wZ\n",
1529 &pParentDirEntry->NameInformation.FileName);
1538 // Increment our dir entry ref count
1541 InterlockedIncrement( &pDirEntry->OpenReferenceCount);
1543 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1544 AFS_TRACE_LEVEL_VERBOSE,
1545 "AFSLocateNameEntry Increment5 count on %wZ DE %p Ccb %p Cnt %d\n",
1546 &pDirEntry->NameInformation.FileName,
1549 pDirEntry->OpenReferenceCount);
1552 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1554 } // End while( pDirEntry == NULL)
1557 // If we have a dirEntry for this component, perform some basic validation on it
1560 if( pDirEntry != NULL &&
1561 BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_DELETED))
1564 pCurrentObject = pDirEntry->ObjectInformation;
1566 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1567 AFS_TRACE_LEVEL_ERROR,
1568 "AFSLocateNameEntry (FO: %08lX) Deleted parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1570 &pDirEntry->NameInformation.FileName,
1571 pCurrentObject->FileId.Cell,
1572 pCurrentObject->FileId.Volume,
1573 pCurrentObject->FileId.Vnode,
1574 pCurrentObject->FileId.Unique);
1577 // This entry was deleted through the invalidation call back so perform cleanup
1581 ASSERT( pCurrentObject->ParentObjectInformation != NULL);
1583 AFSAcquireExcl( pCurrentObject->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
1586 AFSAcquireExcl( pCurrentObject->VolumeCB->ObjectInfoTree.TreeLock,
1589 if( InterlockedDecrement( &pDirEntry->OpenReferenceCount) == 0)
1592 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1593 AFS_TRACE_LEVEL_VERBOSE,
1594 "AFSLocateNameEntry Deleting dir entry %08lX (%08lX) for %wZ\n",
1597 &pDirEntry->NameInformation.FileName);
1600 // Remove and delete the directory entry from the parent list
1603 AFSDeleteDirEntry( pCurrentObject->ParentObjectInformation,
1606 if( pCurrentObject->ObjectReferenceCount == 0)
1609 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_INSERTED_HASH_TREE))
1612 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1613 AFS_TRACE_LEVEL_VERBOSE,
1614 "AFSLocateNameEntry Removing object %08lX from volume tree\n",
1617 AFSRemoveHashEntry( &pCurrentObject->VolumeCB->ObjectInfoTree.TreeHead,
1618 &pCurrentObject->TreeEntry);
1620 ClearFlag( pCurrentObject->Flags, AFS_OBJECT_INSERTED_HASH_TREE);
1627 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1628 AFS_TRACE_LEVEL_VERBOSE,
1629 "AFSLocateNameEntry Setting DELETE flag in dir entry %p for %wZ\n",
1631 &pDirEntry->NameInformation.FileName);
1633 SetFlag( pDirEntry->Flags, AFS_DIR_ENTRY_DELETED);
1635 AFSRemoveNameEntry( pCurrentObject->ParentObjectInformation,
1639 AFSReleaseResource( pCurrentObject->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1641 AFSReleaseResource( pCurrentObject->VolumeCB->ObjectInfoTree.TreeLock);
1644 // We deleted the dir entry so check if there is any remaining portion
1645 // of the name to process.
1648 if( uniRemainingPath.Length > 0)
1650 ntStatus = STATUS_OBJECT_PATH_NOT_FOUND;
1655 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
1657 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1658 AFS_TRACE_LEVEL_VERBOSE,
1659 "AFSLocateNameEntry (FO: %08lX) Returning name not found(2) for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1662 pCurrentObject->FileId.Cell,
1663 pCurrentObject->FileId.Volume,
1664 pCurrentObject->FileId.Vnode,
1665 pCurrentObject->FileId.Unique);
1668 // Pass back the directory entries
1671 *ParentDirectoryCB = pParentDirEntry;
1673 *DirectoryCB = NULL;
1675 *VolumeCB = pCurrentVolume;
1677 if( ComponentName != NULL)
1680 *ComponentName = uniComponentName;
1683 *RootPathName = uniFullPathName;
1687 if( ntStatus != STATUS_SUCCESS)
1690 try_return( ntStatus);
1694 // Decrement the previous parent
1697 InterlockedDecrement( &pParentDirEntry->OpenReferenceCount);
1699 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1700 AFS_TRACE_LEVEL_VERBOSE,
1701 "AFSLocateNameEntry Decrement5 count on Parent %wZ DE %p Ccb %p Cnt %d\n",
1702 &pParentDirEntry->NameInformation.FileName,
1705 pParentDirEntry->OpenReferenceCount);
1708 // If we ended up substituting a name in the component then update
1709 // the full path and update the pointers
1712 if( bSubstituteName)
1715 BOOLEAN bRelativeOpen = FALSE;
1717 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1718 AFS_TRACE_LEVEL_VERBOSE_2,
1719 "AFSLocateNameEntry (FO: %08lX) Substituting %wZ into %wZ Index %08lX\n",
1725 if( FileObject != NULL &&
1726 FileObject->RelatedFileObject != NULL)
1729 bRelativeOpen = TRUE;
1733 // AFSSubstituteNameInPath will replace the uniFullPathName.Buffer
1734 // and free the prior Buffer contents but only if the fourth
1735 // parameter is TRUE.
1738 ntStatus = AFSSubstituteNameInPath( &uniFullPathName,
1743 bAllocatedSymLinkBuffer ||
1746 if( !NT_SUCCESS( ntStatus))
1749 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1750 AFS_TRACE_LEVEL_ERROR,
1751 "AFSLocateNameEntry (FO: %08lX) Failure to substitute %wZ into %wZ Index %08lX Status %08lX\n",
1758 try_return( ntStatus);
1762 // We have substituted a name into the buffer so if we do this again for this
1763 // path, we need to free up the buffer we allocated.
1766 bSubstitutedName = TRUE;
1770 // Update the search parameters
1773 uniPathName = uniRemainingPath;
1776 // Check if the is a SymLink entry but has no Target FileID or Name. In this
1777 // case it might be a DFS Link so let's go and evaluate it to be sure
1780 if( pCurrentObject->FileType == AFS_FILE_TYPE_SYMLINK &&
1781 pCurrentObject->TargetFileId.Vnode == 0 &&
1782 pCurrentObject->TargetFileId.Unique == 0 &&
1783 pDirEntry->NameInformation.TargetName.Length == 0)
1786 ntStatus = AFSValidateSymLink( AuthGroup,
1789 if( !NT_SUCCESS( ntStatus))
1792 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1793 AFS_TRACE_LEVEL_ERROR,
1794 "AFSLocateNameEntry (FO: %08lX) Failed to evaluate possible DFS Link %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1796 &pDirEntry->NameInformation.FileName,
1797 pCurrentObject->FileId.Cell,
1798 pCurrentObject->FileId.Volume,
1799 pCurrentObject->FileId.Vnode,
1800 pCurrentObject->FileId.Unique,
1803 try_return( ntStatus);
1808 // Update the name array
1811 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1812 AFS_TRACE_LEVEL_VERBOSE,
1813 "AFSLocateNameEntry (FO: %08lX) Inserting name array entry %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1815 &pDirEntry->NameInformation.FileName,
1816 pCurrentObject->FileId.Cell,
1817 pCurrentObject->FileId.Volume,
1818 pCurrentObject->FileId.Vnode,
1819 pCurrentObject->FileId.Unique);
1821 ntStatus = AFSInsertNextElement( pNameArray,
1824 if( !NT_SUCCESS( ntStatus))
1827 try_return( ntStatus);
1833 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1834 AFS_TRACE_LEVEL_VERBOSE,
1835 "AFSLocateNameEntry (FO: %08lX) Completed processing %wZ Status %08lX\n",
1840 if( ( !NT_SUCCESS( ntStatus) &&
1841 ntStatus != STATUS_OBJECT_NAME_NOT_FOUND) ||
1842 ntStatus == STATUS_REPARSE)
1845 if( pDirEntry != NULL)
1848 InterlockedDecrement( &pDirEntry->OpenReferenceCount);
1850 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1851 AFS_TRACE_LEVEL_VERBOSE,
1852 "AFSLocateNameEntry Decrement6 count on %wZ DE %p Ccb %p Cnt %d\n",
1853 &pDirEntry->NameInformation.FileName,
1856 pDirEntry->OpenReferenceCount);
1858 else if( pParentDirEntry != NULL)
1861 InterlockedDecrement( &pParentDirEntry->OpenReferenceCount);
1863 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1864 AFS_TRACE_LEVEL_VERBOSE,
1865 "AFSLocateNameEntry Decrement7 count on %wZ DE %p Ccb %p Cnt %d\n",
1866 &pParentDirEntry->NameInformation.FileName,
1869 pParentDirEntry->OpenReferenceCount);
1872 if( bReleaseCurrentVolume)
1875 ASSERT( pCurrentVolume->VolumeReferenceCount > 1);
1877 ASSERT( ExIsResourceAcquiredLite( pCurrentVolume->VolumeLock));
1879 InterlockedDecrement( &pCurrentVolume->VolumeReferenceCount);
1881 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
1882 AFS_TRACE_LEVEL_VERBOSE,
1883 "AFSLocateNameEntry Decrement3 count on volume %08lX Cnt %d\n",
1885 pCurrentVolume->VolumeReferenceCount);
1887 AFSReleaseResource( pCurrentVolume->VolumeLock);
1890 if( RootPathName->Buffer != uniFullPathName.Buffer)
1893 AFSExFreePool( uniFullPathName.Buffer);
1899 if( *ParentDirectoryCB != NULL)
1902 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1903 AFS_TRACE_LEVEL_VERBOSE,
1904 "AFSLocateNameEntry Count on Parent %wZ DE %p Ccb %p Cnt %d\n",
1905 &(*ParentDirectoryCB)->NameInformation.FileName,
1908 (*ParentDirectoryCB)->OpenReferenceCount);
1911 if( *DirectoryCB != NULL)
1914 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1915 AFS_TRACE_LEVEL_VERBOSE,
1916 "AFSLocateNameEntry Count on %wZ DE %p Ccb %p Cnt %d\n",
1917 &(*DirectoryCB)->NameInformation.FileName,
1920 (*DirectoryCB)->OpenReferenceCount);
1924 if( bSubstituteName &&
1925 uniSearchName.Buffer != NULL)
1928 AFSExFreePool( uniSearchName.Buffer);
1936 AFSCreateDirEntry( IN GUID *AuthGroup,
1937 IN AFSObjectInfoCB *ParentObjectInfo,
1938 IN AFSDirectoryCB *ParentDirCB,
1939 IN PUNICODE_STRING FileName,
1940 IN PUNICODE_STRING ComponentName,
1941 IN ULONG Attributes,
1942 IN OUT AFSDirectoryCB **DirEntry)
1945 NTSTATUS ntStatus = STATUS_SUCCESS;
1946 AFSDirectoryCB *pDirNode = NULL;
1947 UNICODE_STRING uniShortName;
1948 LARGE_INTEGER liFileSize = {0,0};
1953 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1954 AFS_TRACE_LEVEL_VERBOSE_2,
1955 "AFSCreateDirEntry Creating dir entry in parent %wZ FID %08lX-%08lX-%08lX-%08lX Component %wZ Attribs %08lX\n",
1956 &ParentDirCB->NameInformation.FileName,
1957 ParentObjectInfo->FileId.Cell,
1958 ParentObjectInfo->FileId.Volume,
1959 ParentObjectInfo->FileId.Vnode,
1960 ParentObjectInfo->FileId.Unique,
1965 // OK, before inserting the node into the parent tree, issue
1966 // the request to the service for node creation
1967 // We will need to drop the lock on the parent node since the create
1968 // could cause a callback into the file system to invalidate it's cache
1971 ntStatus = AFSNotifyFileCreate( AuthGroup,
1979 // If the returned status is STATUS_REPARSE then the entry exists
1980 // and we raced, get out.
1982 if( ntStatus == STATUS_REPARSE)
1985 *DirEntry = pDirNode;
1987 try_return( ntStatus = STATUS_SUCCESS);
1990 if( !NT_SUCCESS( ntStatus))
1993 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1994 AFS_TRACE_LEVEL_ERROR,
1995 "AFSCreateDirEntry Failed to create dir entry in parent %wZ FID %08lX-%08lX-%08lX-%08lX Component %wZ Attribs %08lX Status %08lX\n",
1996 &ParentDirCB->NameInformation.FileName,
1997 ParentObjectInfo->FileId.Cell,
1998 ParentObjectInfo->FileId.Volume,
1999 ParentObjectInfo->FileId.Vnode,
2000 ParentObjectInfo->FileId.Unique,
2005 try_return( ntStatus);
2008 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2009 AFS_TRACE_LEVEL_VERBOSE_2,
2010 "AFSCreateDirEntry Inserting dir entry in parent %wZ FID %08lX-%08lX-%08lX-%08lX Component %wZ\n",
2011 &ParentDirCB->NameInformation.FileName,
2012 ParentObjectInfo->FileId.Cell,
2013 ParentObjectInfo->FileId.Volume,
2014 ParentObjectInfo->FileId.Vnode,
2015 ParentObjectInfo->FileId.Unique,
2019 // Insert the directory node
2022 AFSInsertDirectoryNode( ParentObjectInfo,
2027 // Pass back the dir entry
2030 *DirEntry = pDirNode;
2041 AFSInsertDirectoryNode( IN AFSObjectInfoCB *ParentObjectInfo,
2042 IN AFSDirectoryCB *DirEntry,
2043 IN BOOLEAN InsertInEnumList)
2049 AFSAcquireExcl( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2053 // Insert the node into the directory node tree
2056 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2057 AFS_TRACE_LEVEL_VERBOSE,
2058 "AFSInsertDirectoryNode Insert DE %p for %wZ Clearing NOT_IN flag\n",
2060 &DirEntry->NameInformation.FileName);
2062 ClearFlag( DirEntry->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE);
2064 if( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead == NULL)
2067 ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead = DirEntry;
2069 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2070 AFS_TRACE_LEVEL_VERBOSE,
2071 "AFSInsertDirectoryNode Insert DE %p to head of case sensitive tree for %wZ\n",
2073 &DirEntry->NameInformation.FileName);
2078 AFSInsertCaseSensitiveDirEntry( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
2081 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2082 AFS_TRACE_LEVEL_VERBOSE,
2083 "AFSInsertDirectoryNode Insert DE %p to case sensitive tree for %wZ\n",
2085 &DirEntry->NameInformation.FileName);
2088 if( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead == NULL)
2091 ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead = DirEntry;
2093 SetFlag( DirEntry->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD);
2095 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2096 AFS_TRACE_LEVEL_VERBOSE,
2097 "AFSInsertDirectoryNode Insert DE %p to head of case insensitive tree for %wZ\n",
2099 &DirEntry->NameInformation.FileName);
2104 AFSInsertCaseInsensitiveDirEntry( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
2107 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2108 AFS_TRACE_LEVEL_VERBOSE,
2109 "AFSInsertDirectoryNode Insert DE %p to case insensitive tree for %wZ\n",
2111 &DirEntry->NameInformation.FileName);
2115 // Into the shortname tree
2118 if( DirEntry->Type.Data.ShortNameTreeEntry.HashIndex != 0)
2121 if( ParentObjectInfo->Specific.Directory.ShortNameTree == NULL)
2124 ParentObjectInfo->Specific.Directory.ShortNameTree = DirEntry;
2126 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2127 AFS_TRACE_LEVEL_VERBOSE,
2128 "AFSInsertDirectoryNode Insert DE %p to head of shortname tree for %wZ\n",
2130 &DirEntry->NameInformation.FileName);
2135 AFSInsertShortNameDirEntry( ParentObjectInfo->Specific.Directory.ShortNameTree,
2138 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2139 AFS_TRACE_LEVEL_VERBOSE,
2140 "AFSInsertDirectoryNode Insert DE %p to shortname tree for %wZ\n",
2142 &DirEntry->NameInformation.FileName);
2146 if( InsertInEnumList)
2150 // And insert the node into the directory list
2153 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2154 AFS_TRACE_LEVEL_VERBOSE,
2155 "AFSInsertDirectoryNode Inserting entry %08lX %wZ FID %08lX-%08lX-%08lX-%08lXStatus %08lX\n",
2157 &DirEntry->NameInformation.FileName,
2158 DirEntry->ObjectInformation->FileId.Cell,
2159 DirEntry->ObjectInformation->FileId.Volume,
2160 DirEntry->ObjectInformation->FileId.Vnode,
2161 DirEntry->ObjectInformation->FileId.Unique);
2163 if( ParentObjectInfo->Specific.Directory.DirectoryNodeListHead == NULL)
2166 ParentObjectInfo->Specific.Directory.DirectoryNodeListHead = DirEntry;
2171 ParentObjectInfo->Specific.Directory.DirectoryNodeListTail->ListEntry.fLink = (void *)DirEntry;
2173 DirEntry->ListEntry.bLink = (void *)ParentObjectInfo->Specific.Directory.DirectoryNodeListTail;
2176 ParentObjectInfo->Specific.Directory.DirectoryNodeListTail = DirEntry;
2178 SetFlag( DirEntry->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
2180 InterlockedIncrement( &ParentObjectInfo->Specific.Directory.DirectoryNodeCount);
2182 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
2183 AFS_TRACE_LEVEL_VERBOSE,
2184 "AFSInsertDirectoryNode Adding entry %wZ Inc Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
2185 &DirEntry->NameInformation.FileName,
2186 ParentObjectInfo->Specific.Directory.DirectoryNodeCount,
2187 ParentObjectInfo->FileId.Cell,
2188 ParentObjectInfo->FileId.Volume,
2189 ParentObjectInfo->FileId.Vnode,
2190 ParentObjectInfo->FileId.Unique);
2193 AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2200 AFSDeleteDirEntry( IN AFSObjectInfoCB *ParentObjectInfo,
2201 IN AFSDirectoryCB *DirEntry)
2204 NTSTATUS ntStatus = STATUS_SUCCESS;
2209 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2210 AFS_TRACE_LEVEL_VERBOSE,
2211 "AFSDeleteDirEntry Deleting dir entry in parent %08lX Entry %08lX %wZ FID %08lX-%08lX-%08lX-%08lX\n",
2214 &DirEntry->NameInformation.FileName,
2215 DirEntry->ObjectInformation->FileId.Cell,
2216 DirEntry->ObjectInformation->FileId.Volume,
2217 DirEntry->ObjectInformation->FileId.Vnode,
2218 DirEntry->ObjectInformation->FileId.Unique);
2220 AFSRemoveDirNodeFromParent( ParentObjectInfo,
2225 // Free up the name buffer if it was reallocated
2228 if( BooleanFlagOn( DirEntry->Flags, AFS_DIR_RELEASE_NAME_BUFFER))
2231 AFSExFreePool( DirEntry->NameInformation.FileName.Buffer);
2234 if( BooleanFlagOn( DirEntry->Flags, AFS_DIR_RELEASE_TARGET_NAME_BUFFER))
2237 AFSExFreePool( DirEntry->NameInformation.TargetName.Buffer);
2241 // Dereference the object for this dir entry
2244 ASSERT( DirEntry->ObjectInformation->ObjectReferenceCount > 0);
2246 InterlockedDecrement( &DirEntry->ObjectInformation->ObjectReferenceCount);
2248 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
2249 AFS_TRACE_LEVEL_VERBOSE,
2250 "AFSDeleteDirEntry Decrement count on object %08lX Cnt %d\n",
2251 DirEntry->ObjectInformation,
2252 DirEntry->ObjectInformation->ObjectReferenceCount);
2254 ExDeleteResourceLite( &DirEntry->NonPaged->Lock);
2256 AFSExFreePool( DirEntry->NonPaged);
2259 // Free up the dir entry
2262 AFSExFreePool( DirEntry);
2269 AFSRemoveDirNodeFromParent( IN AFSObjectInfoCB *ParentObjectInfo,
2270 IN AFSDirectoryCB *DirEntry,
2271 IN BOOLEAN RemoveFromEnumList)
2274 NTSTATUS ntStatus = STATUS_SUCCESS;
2280 ASSERT( ExIsResourceAcquiredExclusiveLite( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock));
2282 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2283 AFS_TRACE_LEVEL_VERBOSE,
2284 "AFSRemoveDirNodeFromParent Removing DirEntry %08lX %wZ FID %08lX-%08lX-%08lX-%08lX from Parent %08lX\n",
2286 &DirEntry->NameInformation.FileName,
2287 DirEntry->ObjectInformation->FileId.Cell,
2288 DirEntry->ObjectInformation->FileId.Volume,
2289 DirEntry->ObjectInformation->FileId.Vnode,
2290 DirEntry->ObjectInformation->FileId.Unique,
2293 if( !BooleanFlagOn( DirEntry->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE))
2296 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2297 AFS_TRACE_LEVEL_VERBOSE,
2298 "AFSRemoveDirNodeFromParent Removing DirEntry %08lX name %wZ\n",
2300 &DirEntry->NameInformation.FileName);
2302 AFSRemoveNameEntry( ParentObjectInfo,
2308 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2309 AFS_TRACE_LEVEL_VERBOSE,
2310 "AFSRemoveDirNodeFromParent DE %p for %wZ NOT removing entry due to flag set\n",
2312 &DirEntry->NameInformation.FileName);
2316 if( RemoveFromEnumList &&
2317 BooleanFlagOn( DirEntry->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST))
2321 // And remove the entry from the enumeration list
2324 if( DirEntry->ListEntry.fLink == NULL)
2327 ParentObjectInfo->Specific.Directory.DirectoryNodeListTail = (AFSDirectoryCB *)DirEntry->ListEntry.bLink;
2332 ((AFSDirectoryCB *)DirEntry->ListEntry.fLink)->ListEntry.bLink = DirEntry->ListEntry.bLink;
2335 if( DirEntry->ListEntry.bLink == NULL)
2338 ParentObjectInfo->Specific.Directory.DirectoryNodeListHead = (AFSDirectoryCB *)DirEntry->ListEntry.fLink;
2343 ((AFSDirectoryCB *)DirEntry->ListEntry.bLink)->ListEntry.fLink = DirEntry->ListEntry.fLink;
2346 ASSERT( ParentObjectInfo->Specific.Directory.DirectoryNodeCount > 0);
2348 InterlockedDecrement( &ParentObjectInfo->Specific.Directory.DirectoryNodeCount);
2350 ClearFlag( DirEntry->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
2352 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
2353 AFS_TRACE_LEVEL_VERBOSE,
2354 "AFSRemoveDirNodeFromParent Removing entry %wZ Dec Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
2355 &DirEntry->NameInformation.FileName,
2356 ParentObjectInfo->Specific.Directory.DirectoryNodeCount,
2357 ParentObjectInfo->FileId.Cell,
2358 ParentObjectInfo->FileId.Volume,
2359 ParentObjectInfo->FileId.Vnode,
2360 ParentObjectInfo->FileId.Unique);
2362 DirEntry->ListEntry.fLink = NULL;
2363 DirEntry->ListEntry.bLink = NULL;
2371 AFSFixupTargetName( IN OUT PUNICODE_STRING FileName,
2372 IN OUT PUNICODE_STRING TargetFileName)
2375 NTSTATUS ntStatus = STATUS_SUCCESS;
2376 UNICODE_STRING uniFileName;
2382 // We will process backwards from the end of the name looking
2383 // for the first \ we encounter
2386 uniFileName.Length = FileName->Length;
2387 uniFileName.MaximumLength = FileName->MaximumLength;
2389 uniFileName.Buffer = FileName->Buffer;
2394 if( uniFileName.Buffer[ (uniFileName.Length/sizeof( WCHAR)) - 1] == L'\\')
2398 // Subtract one more character off of the filename if it is not the root
2401 if( uniFileName.Length > sizeof( WCHAR))
2404 uniFileName.Length -= sizeof( WCHAR);
2408 // Now build up the target name
2411 TargetFileName->Length = FileName->Length - uniFileName.Length;
2414 // If we are not on the root then fixup the name
2417 if( uniFileName.Length > sizeof( WCHAR))
2420 TargetFileName->Length -= sizeof( WCHAR);
2422 TargetFileName->Buffer = &uniFileName.Buffer[ (uniFileName.Length/sizeof( WCHAR)) + 1];
2427 TargetFileName->Buffer = &uniFileName.Buffer[ uniFileName.Length/sizeof( WCHAR)];
2431 // Fixup the passed back filename length
2434 FileName->Length = uniFileName.Length;
2436 TargetFileName->MaximumLength = TargetFileName->Length;
2441 uniFileName.Length -= sizeof( WCHAR);
2449 AFSParseName( IN PIRP Irp,
2451 OUT PUNICODE_STRING FileName,
2452 OUT PUNICODE_STRING ParsedFileName,
2453 OUT PUNICODE_STRING RootFileName,
2454 OUT ULONG *ParseFlags,
2455 OUT AFSVolumeCB **VolumeCB,
2456 OUT AFSDirectoryCB **ParentDirectoryCB,
2457 OUT AFSNameArrayHdr **NameArray)
2460 NTSTATUS ntStatus = STATUS_SUCCESS;
2461 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2462 AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
2463 UNICODE_STRING uniFullName, uniComponentName, uniRemainingPath;
2465 AFSDirectoryCB *pDirEntry = NULL, *pShareDirEntry = NULL, *pTargetDirEntry = NULL;
2466 USHORT usIndex = 0, usDriveIndex = 0;
2467 AFSCcb *pRelatedCcb = NULL;
2468 AFSNameArrayHdr *pNameArray = NULL, *pRelatedNameArray = NULL;
2469 USHORT usComponentIndex = 0;
2470 USHORT usComponentLength = 0;
2471 AFSVolumeCB *pVolumeCB = NULL;
2472 AFSFcb *pRelatedFcb = NULL;
2473 BOOLEAN bReleaseTreeLock = FALSE;
2474 BOOLEAN bIsAllShare = FALSE;
2480 // Indicate we are opening a root ...
2483 *ParseFlags = AFS_PARSE_FLAG_ROOT_ACCESS;
2485 if( pIrpSp->FileObject->RelatedFileObject != NULL)
2488 pRelatedFcb = (AFSFcb *)pIrpSp->FileObject->RelatedFileObject->FsContext;
2490 pRelatedCcb = (AFSCcb *)pIrpSp->FileObject->RelatedFileObject->FsContext2;
2492 pRelatedNameArray = pRelatedCcb->NameArray;
2494 uniFullName = pIrpSp->FileObject->FileName;
2496 ASSERT( pRelatedFcb != NULL);
2499 // No wild cards in the name
2502 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2503 AFS_TRACE_LEVEL_VERBOSE_2,
2504 "AFSParseName (%08lX) Relative open for %wZ FID %08lX-%08lX-%08lX-%08lX component %wZ\n",
2506 &pRelatedCcb->DirectoryCB->NameInformation.FileName,
2507 pRelatedCcb->DirectoryCB->ObjectInformation->FileId.Cell,
2508 pRelatedCcb->DirectoryCB->ObjectInformation->FileId.Volume,
2509 pRelatedCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
2510 pRelatedCcb->DirectoryCB->ObjectInformation->FileId.Unique,
2513 if( FsRtlDoesNameContainWildCards( &uniFullName))
2516 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2517 AFS_TRACE_LEVEL_ERROR,
2518 "AFSParseName (%08lX) Component %wZ contains wild cards\n",
2522 try_return( ntStatus = STATUS_OBJECT_NAME_INVALID);
2525 pVolumeCB = pRelatedFcb->ObjectInformation->VolumeCB;
2527 pDirEntry = pRelatedCcb->DirectoryCB;
2529 *FileName = pIrpSp->FileObject->FileName;
2532 // Grab the root node exclusive before returning
2535 AFSAcquireExcl( pVolumeCB->VolumeLock,
2538 if( BooleanFlagOn( pVolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_OBJECT_INVALID) ||
2539 BooleanFlagOn( pVolumeCB->Flags, AFS_VOLUME_FLAGS_OFFLINE))
2543 // The volume has been taken off line so fail the access
2546 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2547 AFS_TRACE_LEVEL_ERROR,
2548 "AFSParseName (%08lX) Volume %08lX:%08lX OFFLINE/INVALID\n",
2550 pVolumeCB->ObjectInformation.FileId.Cell,
2551 pVolumeCB->ObjectInformation.FileId.Volume);
2553 AFSReleaseResource( pVolumeCB->VolumeLock);
2555 try_return( ntStatus = STATUS_DEVICE_NOT_READY);
2558 if( BooleanFlagOn( pVolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_VERIFY))
2561 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2562 AFS_TRACE_LEVEL_VERBOSE,
2563 "AFSParseName (%08lX) Verifying root of volume %08lX:%08lX\n",
2565 pVolumeCB->ObjectInformation.FileId.Cell,
2566 pVolumeCB->ObjectInformation.FileId.Volume);
2568 ntStatus = AFSVerifyVolume( (ULONGLONG)PsGetCurrentProcessId(),
2571 if( !NT_SUCCESS( ntStatus))
2574 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2575 AFS_TRACE_LEVEL_ERROR,
2576 "AFSParseName (%08lX) Failed verification of root Status %08lX\n",
2580 AFSReleaseResource( pVolumeCB->VolumeLock);
2582 try_return( ntStatus);
2586 AFSConvertToShared( pVolumeCB->VolumeLock);
2588 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY))
2591 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2592 AFS_TRACE_LEVEL_VERBOSE,
2593 "AFSParseName (%08lX) Verifying parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
2595 &pDirEntry->NameInformation.FileName,
2596 pDirEntry->ObjectInformation->FileId.Cell,
2597 pDirEntry->ObjectInformation->FileId.Volume,
2598 pDirEntry->ObjectInformation->FileId.Vnode,
2599 pDirEntry->ObjectInformation->FileId.Unique);
2601 ntStatus = AFSVerifyEntry( AuthGroup,
2604 if( !NT_SUCCESS( ntStatus))
2607 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2608 AFS_TRACE_LEVEL_VERBOSE,
2609 "AFSParseName (%08lX) Failed verification of parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
2611 &pDirEntry->NameInformation.FileName,
2612 pDirEntry->ObjectInformation->FileId.Cell,
2613 pDirEntry->ObjectInformation->FileId.Volume,
2614 pDirEntry->ObjectInformation->FileId.Vnode,
2615 pDirEntry->ObjectInformation->FileId.Unique,
2618 AFSReleaseResource( pVolumeCB->VolumeLock);
2620 try_return( ntStatus);
2625 // Create our full path name buffer
2628 uniFullName.MaximumLength = pRelatedCcb->FullFileName.Length +
2630 pIrpSp->FileObject->FileName.Length +
2633 uniFullName.Length = 0;
2635 uniFullName.Buffer = (WCHAR *)AFSExAllocatePoolWithTag( PagedPool,
2636 uniFullName.MaximumLength,
2637 AFS_NAME_BUFFER_THREE_TAG);
2639 if( uniFullName.Buffer == NULL)
2642 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2643 AFS_TRACE_LEVEL_ERROR,
2644 "AFSParseName (%08lX) Failed to allocate full name buffer\n",
2647 AFSReleaseResource( pVolumeCB->VolumeLock);
2649 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2652 RtlZeroMemory( uniFullName.Buffer,
2653 uniFullName.MaximumLength);
2655 RtlCopyMemory( uniFullName.Buffer,
2656 pRelatedCcb->FullFileName.Buffer,
2657 pRelatedCcb->FullFileName.Length);
2659 uniFullName.Length = pRelatedCcb->FullFileName.Length;
2661 usComponentIndex = (USHORT)(uniFullName.Length/sizeof( WCHAR));
2663 usComponentLength = pIrpSp->FileObject->FileName.Length;
2665 if( uniFullName.Buffer[ (uniFullName.Length/sizeof( WCHAR)) - 1] != L'\\' &&
2666 pIrpSp->FileObject->FileName.Length > 0 &&
2667 pIrpSp->FileObject->FileName.Buffer[ 0] != L'\\' &&
2668 pIrpSp->FileObject->FileName.Buffer[ 0] != L':')
2671 uniFullName.Buffer[ (uniFullName.Length/sizeof( WCHAR))] = L'\\';
2673 uniFullName.Length += sizeof( WCHAR);
2675 usComponentLength += sizeof( WCHAR);
2678 if( pIrpSp->FileObject->FileName.Length > 0)
2681 RtlCopyMemory( &uniFullName.Buffer[ uniFullName.Length/sizeof( WCHAR)],
2682 pIrpSp->FileObject->FileName.Buffer,
2683 pIr
\epSp->FileObject->FileName.Length);
2685 uniFullName.Length += pIrpSp->FileObject->FileName.Length;
2688 *RootFileName = uniFullName;
2691 // We populate up to the current parent
2694 if( pRelatedNameArray == NULL)
2698 // Init and populate our name array
2701 pNameArray = AFSInitNameArray( NULL,
2704 if( pNameArray == NULL)
2707 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2708 AFS_TRACE_LEVEL_VERBOSE,
2709 "AFSParseName (%08lX) Failed to initialize name array\n",
2712 AFSExFreePool( uniFullName.Buffer);
2714 AFSReleaseResource( pVolumeCB->VolumeLock);
2716 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2719 ntStatus = AFSPopulateNameArray( pNameArray,
2721 pRelatedCcb->DirectoryCB);
2727 // Init and populate our name array
2730 pNameArray = AFSInitNameArray( NULL,
2731 pRelatedNameArray->MaxElementCount);
2733 if( pNameArray == NULL)
2736 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2737 AFS_TRACE_LEVEL_VERBOSE,
2738 "AFSParseName (%08lX) Failed to initialize name array\n",
2741 AFSExFreePool( uniFullName.Buffer);
2743 AFSReleaseResource( pVolumeCB->VolumeLock);
2745 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2748 ntStatus = AFSPopulateNameArrayFromRelatedArray( pNameArray,
2750 pRelatedCcb->DirectoryCB);
2753 if( !NT_SUCCESS( ntStatus))
2756 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2757 AFS_TRACE_LEVEL_VERBOSE,
2758 "AFSParseName (%08lX) Failed to populate name array\n",
2761 AFSExFreePool( uniFullName.Buffer);
2763 AFSReleaseResource( pVolumeCB->VolumeLock);
2765 try_return( ntStatus);
2768 ParsedFileName->Length = usComponentLength;
2769 ParsedFileName->MaximumLength = uniFullName.MaximumLength;
2771 ParsedFileName->Buffer = &uniFullName.Buffer[ usComponentIndex];
2774 // Indicate to caller that RootFileName must be freed
2777 SetFlag( *ParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER);
2779 *NameArray = pNameArray;
2781 *VolumeCB = pVolumeCB;
2784 // Increment our volume reference count
2787 InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
2789 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
2790 AFS_TRACE_LEVEL_VERBOSE,
2791 "AFSParseName Increment count on volume %08lX Cnt %d\n",
2793 pVolumeCB->VolumeReferenceCount);
2795 *ParentDirectoryCB = pDirEntry;
2797 InterlockedIncrement( &pDirEntry->OpenReferenceCount);
2799 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
2800 AFS_TRACE_LEVEL_VERBOSE,
2801 "AFSParseName Increment1 count on %wZ DE %p Ccb %p Cnt %d\n",
2802 &pDirEntry->NameInformation.FileName,
2805 pDirEntry->OpenReferenceCount);
2807 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2808 AFS_TRACE_LEVEL_VERBOSE_2,
2809 "AFSParseName (%08lX) Returning full name %wZ\n",
2813 try_return( ntStatus);
2817 // No wild cards in the name
2820 uniFullName = pIrpSp->FileObject->FileName;
2822 if( FsRtlDoesNameContainWildCards( &uniFullName) ||
2823 uniFullName.Length < AFSServerName.Length)
2826 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2827 AFS_TRACE_LEVEL_ERROR,
2828 "AFSParseName (%08lX) Name %wZ contains wild cards or too short\n",
2832 try_return( ntStatus = STATUS_OBJECT_NAME_INVALID);
2836 // The name is a fully qualified name. Parse out the server/share names and
2837 // point to the root qualified name
2838 // First thing is to locate the server name
2841 FsRtlDissectName( uniFullName,
2845 uniFullName = uniRemainingPath;
2848 // This component is the server name we are serving
2851 if( RtlCompareUnicodeString( &uniComponentName,
2857 // Drive letter based name?
2860 uniFullName = pIrpSp->FileObject->FileName;
2862 while( usIndex < uniFullName.Length/sizeof( WCHAR))
2865 if( uniFullName.Buffer[ usIndex] == L':')
2868 uniFullName.Buffer = &uniFullName.Buffer[ usIndex + 2];
2870 uniFullName.Length -= (usIndex + 2) * sizeof( WCHAR);
2872 usDriveIndex = usIndex - 1;
2881 // Do we have the right server name now?
2884 FsRtlDissectName( uniFullName,
2888 uniFullName = uniRemainingPath;
2891 // This component is the server name we are serving
2894 if( RtlCompareUnicodeString( &uniComponentName,
2899 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2900 AFS_TRACE_LEVEL_ERROR,
2901 "AFSParseName (%08lX) Name %wZ does not have server name\n",
2903 &pIrpSp->FileObject->FileName);
2905 try_return( ntStatus = STATUS_BAD_NETWORK_NAME);
2909 // Validate this drive letter is actively mapped
2912 if( usDriveIndex > 0 &&
2913 !AFSIsDriveMapped( pIrpSp->FileObject->FileName.Buffer[ usDriveIndex]))
2916 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2917 AFS_TRACE_LEVEL_ERROR,
2918 "AFSParseName (%08lX) Name %wZ contains invalid drive mapping\n",
2920 &pIrpSp->FileObject->FileName);
2922 try_return( ntStatus = STATUS_BAD_NETWORK_NAME);
2926 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2927 AFS_TRACE_LEVEL_VERBOSE_2,
2928 "AFSParseName (%08lX) Processing full name %wZ\n",
2932 if( uniFullName.Length > 0 &&
2933 uniFullName.Buffer[ (uniFullName.Length/sizeof( WCHAR)) - 1] == L'\\')
2936 uniFullName.Length -= sizeof( WCHAR);
2940 // Be sure we are online and ready to go
2943 AFSAcquireExcl( AFSGlobalRoot->VolumeLock,
2946 if( BooleanFlagOn( AFSGlobalRoot->ObjectInformation.Flags, AFS_OBJECT_FLAGS_OBJECT_INVALID) ||
2947 BooleanFlagOn( AFSGlobalRoot->Flags, AFS_VOLUME_FLAGS_OFFLINE))
2951 // The volume has been taken off line so fail the access
2954 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2955 AFS_TRACE_LEVEL_ERROR,
2956 "AFSParseName (%08lX) Volume %08lX:%08lX OFFLINE/INVALID\n",
2958 AFSGlobalRoot->ObjectInformation.FileId.Cell,
2959 AFSGlobalRoot->ObjectInformation.FileId.Volume);
2961 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
2963 try_return( ntStatus = STATUS_DEVICE_NOT_READY);
2966 if( BooleanFlagOn( AFSGlobalRoot->ObjectInformation.Flags, AFS_OBJECT_FLAGS_VERIFY))
2969 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2970 AFS_TRACE_LEVEL_VERBOSE,
2971 "AFSParseName (%08lX) Verifying root of volume %08lX:%08lX\n",
2973 AFSGlobalRoot->ObjectInformation.FileId.Cell,
2974 AFSGlobalRoot->ObjectInformation.FileId.Volume);
2976 ntStatus = AFSVerifyVolume( (ULONGLONG)PsGetCurrentProcessId(),
2979 if( !NT_SUCCESS( ntStatus))
2982 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2983 AFS_TRACE_LEVEL_ERROR,
2984 "AFSParseName (%08lX) Failed verification of root Status %08lX\n",
2988 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
2990 try_return( ntStatus);
2994 if( !BooleanFlagOn( AFSGlobalRoot->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
2997 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2998 AFS_TRACE_LEVEL_VERBOSE,
2999 "AFSParseName (%08lX) Enumerating global root of volume %08lX:%08lX\n",
3001 AFSGlobalRoot->ObjectInformation.FileId.Cell,
3002 AFSGlobalRoot->ObjectInformation.FileId.Volume);
3004 ntStatus = AFSEnumerateGlobalRoot( AuthGroup);
3006 if( !NT_SUCCESS( ntStatus))
3009 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3010 AFS_TRACE_LEVEL_ERROR,
3011 "AFSParseName (%08lX) Failed enumeraiton of root Status %08lX\n",
3015 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3017 try_return( ntStatus);
3022 // Check for the \\Server access and return it as though it where \\Server\Globalroot
3025 if( uniRemainingPath.Buffer == NULL ||
3026 ( uniRemainingPath.Length == sizeof( WCHAR) &&
3027 uniRemainingPath.Buffer[ 0] == L'\\'))
3030 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3031 AFS_TRACE_LEVEL_VERBOSE_2,
3032 "AFSParseName (%08lX) Returning global root access\n",
3035 InterlockedIncrement( &AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
3037 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3038 AFS_TRACE_LEVEL_VERBOSE,
3039 "AFSParseName Increment2 count on %wZ DE %p Ccb %p Cnt %d\n",
3040 &AFSGlobalRoot->DirectoryCB->NameInformation.FileName,
3041 AFSGlobalRoot->DirectoryCB,
3043 AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
3045 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3049 FileName->Length = 0;
3050 FileName->MaximumLength = 0;
3051 FileName->Buffer = NULL;
3053 try_return( ntStatus = STATUS_SUCCESS);
3056 *RootFileName = uniFullName;
3059 // Include the starting \ in the root name
3062 if( RootFileName->Buffer[ 0] != L'\\')
3064 RootFileName->Buffer--;
3065 RootFileName->Length += sizeof( WCHAR);
3066 RootFileName->MaximumLength += sizeof( WCHAR);
3070 // Get the 'share' name
3073 FsRtlDissectName( uniFullName,
3078 // If this is the ALL access then perform some additional processing
3081 if( RtlCompareUnicodeString( &uniComponentName,
3089 // If there is nothing else then get out
3092 if( uniRemainingPath.Buffer == NULL ||
3093 uniRemainingPath.Length == 0 ||
3094 ( uniRemainingPath.Length == sizeof( WCHAR) &&
3095 uniRemainingPath.Buffer[ 0] == L'\\'))
3098 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3099 AFS_TRACE_LEVEL_VERBOSE_2,
3100 "AFSParseName (%08lX) Returning global root access\n",
3103 InterlockedIncrement( &AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
3105 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3106 AFS_TRACE_LEVEL_VERBOSE,
3107 "AFSParseName Increment3 count on %wZ DE %p Ccb %p Cnt %d\n",
3108 &AFSGlobalRoot->DirectoryCB->NameInformation.FileName,
3109 AFSGlobalRoot->DirectoryCB,
3111 AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
3113 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3117 FileName->Length = 0;
3118 FileName->MaximumLength = 0;
3119 FileName->Buffer = NULL;
3121 try_return( ntStatus = STATUS_SUCCESS);
3125 // Process the name again to strip off the ALL portion
3128 uniFullName = uniRemainingPath;
3130 FsRtlDissectName( uniFullName,
3135 // Check for the PIOCtl name
3138 if( RtlCompareUnicodeString( &uniComponentName,
3143 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3144 AFS_TRACE_LEVEL_VERBOSE_2,
3145 "AFSParseName (%08lX) Returning root PIOCtl access\n",
3148 InterlockedIncrement( &AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
3150 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3151 AFS_TRACE_LEVEL_VERBOSE,
3152 "AFSParseName Increment4 count on %wZ DE %p Ccb %p Cnt %d\n",
3153 &AFSGlobalRoot->DirectoryCB->NameInformation.FileName,
3154 AFSGlobalRoot->DirectoryCB,
3156 AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
3158 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3160 ClearFlag( *ParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS);
3164 *FileName = AFSPIOCtlName;
3166 try_return( ntStatus = STATUS_SUCCESS);
3169 else if( (pDirEntry = AFSGetSpecialShareNameEntry( &uniComponentName,
3170 &uniRemainingPath)) != NULL)
3173 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3174 AFS_TRACE_LEVEL_VERBOSE_2,
3175 "AFSParseName (%08lX) Returning root share name %wZ access\n",
3179 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3182 // Add in the full share name to pass back
3185 if( uniRemainingPath.Buffer != NULL)
3189 // This routine strips off the leading slash so add it back in
3192 uniRemainingPath.Buffer--;
3193 uniRemainingPath.Length += sizeof( WCHAR);
3194 uniRemainingPath.MaximumLength += sizeof( WCHAR);
3197 // And the cell name
3200 uniRemainingPath.Buffer -= (uniComponentName.Length/sizeof( WCHAR));
3201 uniRemainingPath.Length += uniComponentName.Length;
3202 uniRemainingPath.MaximumLength += uniComponentName.Length;
3204 uniComponentName = uniRemainingPath;
3209 *FileName = uniComponentName;
3211 *ParentDirectoryCB = pDirEntry;
3213 ClearFlag( *ParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS);
3215 InterlockedIncrement( &pDirEntry->OpenReferenceCount);
3217 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3218 AFS_TRACE_LEVEL_VERBOSE,
3219 "AFSParseName Increment5 count on %wZ DE %p Ccb %p Cnt %d\n",
3220 &pDirEntry->NameInformation.FileName,
3223 pDirEntry->OpenReferenceCount);
3225 try_return( ntStatus = STATUS_SUCCESS);
3229 // Determine the 'share' we are accessing
3232 ulCRC = AFSGenerateCRC( &uniComponentName,
3235 AFSAcquireShared( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock,
3238 bReleaseTreeLock = TRUE;
3240 AFSLocateCaseSensitiveDirEntry( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
3244 if( pDirEntry == NULL)
3247 ulCRC = AFSGenerateCRC( &uniComponentName,
3250 AFSLocateCaseInsensitiveDirEntry( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
3254 if( pDirEntry == NULL)
3258 // OK, if this component is a valid short name then try
3259 // a lookup in the short name tree
3262 if( RtlIsNameLegalDOS8Dot3( &uniComponentName,
3267 AFSLocateShortNameDirEntry( AFSGlobalRoot->ObjectInformation.Specific.Directory.ShortNameTree,
3272 if( pDirEntry == NULL)
3276 // Check with the service whether it is a valid cell name
3279 AFSReleaseResource( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
3281 bReleaseTreeLock = FALSE;
3283 ntStatus = AFSCheckCellName( AuthGroup,
3287 if( !NT_SUCCESS( ntStatus))
3289 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3292 uniRemainingPath.Length == 0 &&
3293 ntStatus == STATUS_OBJECT_PATH_NOT_FOUND)
3296 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
3299 try_return( ntStatus);
3305 if( bReleaseTreeLock)
3307 AFSReleaseResource( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
3311 // Be sure we are starting from the correct volume
3314 if( pDirEntry->ObjectInformation->VolumeCB != AFSGlobalRoot)
3318 // We dropped the global root in the CheckCellName routine which is the
3319 // only way we can be here
3322 pVolumeCB = pDirEntry->ObjectInformation->VolumeCB;
3325 // In this case don't add back in the 'share' name since that is where we are
3326 // starting. Just put the leading slash back in
3329 if( uniRemainingPath.Buffer != NULL)
3332 uniRemainingPath.Buffer--;
3333 uniRemainingPath.Length += sizeof( WCHAR);
3334 uniRemainingPath.MaximumLength += sizeof( WCHAR);
3336 if( uniRemainingPath.Length > sizeof( WCHAR))
3339 ClearFlag( *ParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS);
3343 // Pass back the parent being the root of the volume
3346 *ParentDirectoryCB = pVolumeCB->DirectoryCB;
3352 // Pass back a root slash
3355 uniRemainingPath = uniComponentName;
3357 uniRemainingPath.Buffer--;
3358 uniRemainingPath.Length = sizeof( WCHAR);
3359 uniRemainingPath.MaximumLength = sizeof( WCHAR);
3362 // This is a root open so pass back no parent
3365 *ParentDirectoryCB = NULL;
3371 pVolumeCB = AFSGlobalRoot;
3374 // Add back in the 'share' portion of the name since we will parse it out on return
3377 if( uniRemainingPath.Buffer != NULL)
3381 // This routine strips off the leading slash so add it back in
3384 uniRemainingPath.Buffer--;
3385 uniRemainingPath.Length += sizeof( WCHAR);
3386 uniRemainingPath.MaximumLength += sizeof( WCHAR);
3388 if( uniRemainingPath.Length > sizeof( WCHAR))
3391 ClearFlag( *ParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS);
3395 // And the cell name
3398 uniRemainingPath.Buffer -= (uniComponentName.Length/sizeof( WCHAR));
3399 uniRemainingPath.Length += uniComponentName.Length;
3400 uniRemainingPath.MaximumLength += uniComponentName.Length;
3405 uniRemainingPath = uniComponentName;
3409 // And the leading slash again ...
3412 uniRemainingPath.Buffer--;
3413 uniRemainingPath.Length += sizeof( WCHAR);
3414 uniRemainingPath.MaximumLength += sizeof( WCHAR);
3416 InterlockedIncrement( &pVolumeCB->DirectoryCB->OpenReferenceCount);
3418 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3419 AFS_TRACE_LEVEL_VERBOSE,
3420 "AFSParseName Increment6 count on %wZ DE %p Ccb %p Cnt %d\n",
3421 &pVolumeCB->DirectoryCB->NameInformation.FileName,
3422 pVolumeCB->DirectoryCB,
3424 pVolumeCB->DirectoryCB->OpenReferenceCount);
3427 // Pass back the parent being the volume root
3430 *ParentDirectoryCB = pVolumeCB->DirectoryCB;
3434 // We only need the volume shared at this point
3437 AFSConvertToShared( pVolumeCB->VolumeLock);
3440 // Init our name array
3443 pNameArray = AFSInitNameArray( pVolumeCB->DirectoryCB,
3446 if( pNameArray == NULL)
3449 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3450 AFS_TRACE_LEVEL_VERBOSE,
3451 "AFSParseName (%08lX) Failed to initialize name array\n",
3454 AFSReleaseResource( pVolumeCB->VolumeLock);
3456 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3460 // Return the remaining portion as the file name
3463 *FileName = uniRemainingPath;
3465 *ParsedFileName = uniRemainingPath;
3467 *NameArray = pNameArray;
3469 *VolumeCB = pVolumeCB;
3472 // Increment our reference on the volume
3475 InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
3477 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
3478 AFS_TRACE_LEVEL_VERBOSE,
3479 "AFSParseName Increment2 count on global volume %08lX Cnt %d\n",
3481 pVolumeCB->VolumeReferenceCount);
3485 if( NT_SUCCESS( ntStatus))
3488 if( *ParentDirectoryCB != NULL)
3491 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3492 AFS_TRACE_LEVEL_VERBOSE,
3493 "AFSParseName Count on %wZ DE %p Ccb %p Cnt %d\n",
3494 &(*ParentDirectoryCB)->NameInformation.FileName,
3497 (*ParentDirectoryCB)->OpenReferenceCount);
3501 if( *VolumeCB != NULL)
3504 ASSERT( (*VolumeCB)->VolumeReferenceCount > 1);
3507 if( ntStatus != STATUS_SUCCESS)
3510 if( pNameArray != NULL)
3513 AFSFreeNameArray( pNameArray);
3522 AFSCheckCellName( IN GUID *AuthGroup,
3523 IN UNICODE_STRING *CellName,
3524 OUT AFSDirectoryCB **ShareDirEntry)
3527 NTSTATUS ntStatus = STATUS_SUCCESS;
3528 UNICODE_STRING uniName;
3530 AFSDirEnumEntry *pDirEnumEntry = NULL;
3531 AFSDeviceExt *pDevExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
3532 AFSDirHdr *pDirHdr = &AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr;
3533 AFSDirectoryCB *pDirNode = NULL;
3534 UNICODE_STRING uniDirName, uniTargetName;
3535 AFSVolumeCB *pVolumeCB = NULL;
3541 // Look for some default names we will not handle
3544 RtlInitUnicodeString( &uniName,
3547 if( RtlCompareUnicodeString( &uniName,
3552 try_return( ntStatus = STATUS_NO_SUCH_FILE);
3555 RtlInitUnicodeString( &uniName,
3558 if( RtlCompareUnicodeString( &uniName,
3563 try_return( ntStatus = STATUS_NO_SUCH_FILE);
3566 RtlInitUnicodeString( &uniName,
3569 if( RtlCompareUnicodeString( &uniName,
3574 try_return( ntStatus = STATUS_NO_SUCH_FILE);
3577 RtlInitUnicodeString( &uniName,
3580 if( RtlCompareUnicodeString( &uniName,
3585 try_return( ntStatus = STATUS_NO_SUCH_FILE);
3589 // OK, ask the CM about this component name
3592 stFileID = AFSGlobalRoot->ObjectInformation.FileId;
3594 ntStatus = AFSEvaluateTargetByName( AuthGroup,
3599 if( !NT_SUCCESS( ntStatus))
3602 try_return( ntStatus);
3606 // OK, we have a dir enum entry back so add it to the root node
3609 uniDirName = *CellName;
3611 uniTargetName.Length = (USHORT)pDirEnumEntry->TargetNameLength;
3612 uniTargetName.MaximumLength = uniTargetName.Length;
3613 uniTargetName.Buffer = (WCHAR *)((char *)pDirEnumEntry + pDirEnumEntry->TargetNameOffset);
3616 // Is this entry a root volume entry?
3619 if( pDirEnumEntry->FileId.Cell != AFSGlobalRoot->ObjectInformation.FileId.Cell ||
3620 pDirEnumEntry->FileId.Volume != AFSGlobalRoot->ObjectInformation.FileId.Volume)
3624 // We have the global root on entry so drop it now
3627 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3630 // Build the root volume entry
3633 ntStatus = AFSBuildRootVolume( AuthGroup,
3634 &pDirEnumEntry->FileId,
3637 if( !NT_SUCCESS( ntStatus))
3641 // On failure this routine is expecting to hold the global root
3644 AFSAcquireShared( AFSGlobalRoot->VolumeLock,
3647 try_return( ntStatus);
3650 *ShareDirEntry = pVolumeCB->DirectoryCB;
3652 InterlockedIncrement( &pVolumeCB->DirectoryCB->OpenReferenceCount);
3654 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3655 AFS_TRACE_LEVEL_VERBOSE,
3656 "AFSCheckCellName Increment1 count on %wZ DE %p Ccb %p Cnt %d\n",
3657 &pVolumeCB->DirectoryCB->NameInformation.FileName,
3658 pVolumeCB->DirectoryCB,
3660 pVolumeCB->DirectoryCB->OpenReferenceCount);
3662 InterlockedDecrement( &pVolumeCB->VolumeReferenceCount);
3667 pDirNode = AFSInitDirEntry( &AFSGlobalRoot->ObjectInformation,
3671 (ULONG)InterlockedIncrement( &pDirHdr->ContentIndex));
3673 if( pDirNode == NULL)
3676 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3680 // Init the short name if we have one
3683 if( pDirEnumEntry->ShortNameLength > 0)
3686 pDirNode->NameInformation.ShortNameLength = pDirEnumEntry->ShortNameLength;
3688 RtlCopyMemory( pDirNode->NameInformation.ShortName,
3689 pDirEnumEntry->ShortName,
3690 pDirNode->NameInformation.ShortNameLength);
3693 AFSAcquireExcl( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock,
3697 // Insert the node into the name tree
3700 ASSERT( ExIsResourceAcquiredExclusiveLite( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock));
3702 if( pDirHdr->CaseSensitiveTreeHead == NULL)
3705 pDirHdr->CaseSensitiveTreeHead = pDirNode;
3710 AFSInsertCaseSensitiveDirEntry( pDirHdr->CaseSensitiveTreeHead,
3714 if( pDirHdr->CaseInsensitiveTreeHead == NULL)
3717 pDirHdr->CaseInsensitiveTreeHead = pDirNode;
3719 SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD);
3724 AFSInsertCaseInsensitiveDirEntry( pDirHdr->CaseInsensitiveTreeHead,
3728 if( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListHead == NULL)
3731 AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListHead = pDirNode;
3736 AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListTail->ListEntry.fLink = pDirNode;
3738 pDirNode->ListEntry.bLink = AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListTail;
3741 AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListTail = pDirNode;
3743 SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
3745 InterlockedIncrement( &AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeCount);
3747 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
3748 AFS_TRACE_LEVEL_VERBOSE,
3749 "AFSCheckCellName Adding entry %wZ Inc Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
3750 &pDirNode->NameInformation.FileName,
3751 AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeCount,
3752 AFSGlobalRoot->ObjectInformation.FileId.Cell,
3753 AFSGlobalRoot->ObjectInformation.FileId.Volume,
3754 AFSGlobalRoot->ObjectInformation.FileId.Vnode,
3755 AFSGlobalRoot->ObjectInformation.FileId.Unique);
3757 InterlockedIncrement( &pDirNode->OpenReferenceCount);
3759 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3760 AFS_TRACE_LEVEL_VERBOSE,
3761 "AFSCheckCellName Increment2 count on %wZ DE %p Ccb %p Cnt %d\n",
3762 &pDirNode->NameInformation.FileName,
3765 pDirNode->OpenReferenceCount);
3767 AFSReleaseResource( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
3770 // Pass back the dir node
3773 *ShareDirEntry = pDirNode;
3778 if( pDirEnumEntry != NULL)
3781 AFSExFreePool( pDirEnumEntry);
3789 AFSBuildMountPointTarget( IN GUID *AuthGroup,
3790 IN AFSDirectoryCB *DirectoryCB,
3791 OUT AFSVolumeCB **TargetVolumeCB)
3794 NTSTATUS ntStatus = STATUS_SUCCESS;
3795 AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
3796 AFSDirEnumEntry *pDirEntry = NULL;
3797 AFSDirectoryCB *pDirNode = NULL;
3798 UNICODE_STRING uniDirName, uniTargetName;
3799 ULONGLONG ullIndex = 0;
3800 AFSVolumeCB *pVolumeCB = NULL;
3801 AFSFileID stTargetFileID;
3807 // Loop on each entry, building the chain until we encounter the final target
3810 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3811 AFS_TRACE_LEVEL_VERBOSE_2,
3812 "AFSBuildMountPointTarget Building target directory for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
3813 &DirectoryCB->NameInformation.FileName,
3814 DirectoryCB->ObjectInformation->FileId.Cell,
3815 DirectoryCB->ObjectInformation->FileId.Volume,
3816 DirectoryCB->ObjectInformation->FileId.Vnode,
3817 DirectoryCB->ObjectInformation->FileId.Unique);
3820 // Do we need to evaluate the node?
3823 //if( DirectoryCB->ObjectInformation->TargetFileId.Vnode == 0 &&
3824 // DirectoryCB->ObjectInformation->TargetFileId.Unique == 0)
3828 // Go evaluate the current target to get the target fid
3831 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3832 AFS_TRACE_LEVEL_VERBOSE_2,
3833 "AFSBuildMountPointTarget Evaluating target %wZ FID %08lX-%08lX-%08lX-%08lX\n",
3834 &DirectoryCB->NameInformation.FileName,
3835 DirectoryCB->ObjectInformation->FileId.Cell,
3836 DirectoryCB->ObjectInformation->FileId.Volume,
3837 DirectoryCB->ObjectInformation->FileId.Vnode,
3838 DirectoryCB->ObjectInformation->FileId.Unique);
3840 ntStatus = AFSEvaluateTargetByID( DirectoryCB->ObjectInformation,
3845 if( !NT_SUCCESS( ntStatus))
3848 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3849 AFS_TRACE_LEVEL_ERROR,
3850 "AFSBuildMountPointTarget Failed to evaluate target %wZ Status %08lX\n",
3851 &DirectoryCB->NameInformation.FileName,
3853 try_return( ntStatus);
3856 if( pDirEntry->TargetFileId.Vnode == 0 &&
3857 pDirEntry->TargetFileId.Unique == 0)
3860 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3861 AFS_TRACE_LEVEL_ERROR,
3862 "AFSBuildMountPointTarget Target %wZ FID %08lX-%08lX-%08lX-%08lX service returned zero FID\n",
3863 &DirectoryCB->NameInformation.FileName,
3864 DirectoryCB->ObjectInformation->FileId.Cell,
3865 DirectoryCB->ObjectInformation->FileId.Volume,
3866 DirectoryCB->ObjectInformation->FileId.Vnode,
3867 DirectoryCB->ObjectInformation->FileId.Unique);
3869 try_return( ntStatus = STATUS_ACCESS_DENIED);
3872 AFSAcquireExcl( &DirectoryCB->NonPaged->Lock,
3875 ntStatus = AFSUpdateTargetName( &DirectoryCB->NameInformation.TargetName,
3876 &DirectoryCB->Flags,
3877 (WCHAR *)((char *)pDirEntry + pDirEntry->TargetNameOffset),
3878 (USHORT)pDirEntry->TargetNameLength);
3880 if( !NT_SUCCESS( ntStatus))
3883 AFSReleaseResource( &DirectoryCB->NonPaged->Lock);
3885 try_return( ntStatus);
3888 AFSReleaseResource( &DirectoryCB->NonPaged->Lock);
3890 DirectoryCB->ObjectInformation->TargetFileId = pDirEntry->TargetFileId;
3893 stTargetFileID = DirectoryCB->ObjectInformation->TargetFileId;
3896 // Try to locate this FID. First the volume then the
3900 ullIndex = AFSCreateHighIndex( &stTargetFileID);
3902 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
3903 AFS_TRACE_LEVEL_VERBOSE,
3904 "AFSBuildMountPointTarget Acquiring RDR VolumeTreeLock lock %08lX EXCL %08lX\n",
3905 &pDevExt->Specific.RDR.VolumeTreeLock,
3906 PsGetCurrentThread());
3908 AFSAcquireShared( &pDevExt->Specific.RDR.VolumeTreeLock,
3911 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3912 AFS_TRACE_LEVEL_VERBOSE_2,
3913 "AFSBuildMountPointTarget Locating volume for target %I64X\n",
3916 ntStatus = AFSLocateHashEntry( pDevExt->Specific.RDR.VolumeTree.TreeHead,
3918 (AFSBTreeEntry **)&pVolumeCB);
3921 // We can be processing a request for a target that is on a volume
3922 // we have never seen before.
3925 if( pVolumeCB == NULL)
3929 // Locking is held correctly in init routine
3932 AFSReleaseResource( &pDevExt->Specific.RDR.VolumeTreeLock);
3935 // Go init the root of the volume
3938 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3939 AFS_TRACE_LEVEL_VERBOSE_2,
3940 "AFSBuildMountPointTarget Initializing root for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
3941 &DirectoryCB->NameInformation.FileName,
3942 DirectoryCB->ObjectInformation->FileId.Cell,
3943 DirectoryCB->ObjectInformation->FileId.Volume,
3944 DirectoryCB->ObjectInformation->FileId.Vnode,
3945 DirectoryCB->ObjectInformation->FileId.Unique);
3947 ntStatus = AFSInitVolume( AuthGroup,
3951 if( !NT_SUCCESS( ntStatus))
3954 try_return( ntStatus);
3961 // Check if this volume has been deleted or taken offline
3964 if( BooleanFlagOn( pVolumeCB->Flags, AFS_VOLUME_FLAGS_OFFLINE))
3967 AFSReleaseResource( &pDevExt->Specific.RDR.VolumeTreeLock);
3969 try_return( ntStatus = STATUS_FILE_IS_OFFLINE);
3973 // Just to ensure that things don't get torn down AND we don't create a
3974 // deadlock with invalidation
3977 InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
3979 AFSReleaseResource( &pDevExt->Specific.RDR.VolumeTreeLock);
3981 AFSAcquireExcl( pVolumeCB->VolumeLock,
3984 InterlockedDecrement( &pVolumeCB->VolumeReferenceCount);
3987 if( pVolumeCB->RootFcb == NULL)
3991 // Initialize the root fcb for this volume
3994 ntStatus = AFSInitRootFcb( (ULONGLONG)PsGetCurrentProcessId(),
3997 if( !NT_SUCCESS( ntStatus))
4000 AFSReleaseResource( pVolumeCB->VolumeLock);
4002 try_return( ntStatus);
4006 // Drop the lock acquired above
4009 AFSReleaseResource( &pVolumeCB->RootFcb->NPFcb->Resource);
4012 AFSConvertToShared( pVolumeCB->VolumeLock);
4014 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4015 AFS_TRACE_LEVEL_VERBOSE_2,
4016 "AFSBuildMountPointTarget Evaluated target of %wZ FID %08lX-%08lX-%08lX-%08lX as root volume\n",
4017 &pVolumeCB->DirectoryCB->NameInformation.FileName,
4018 pVolumeCB->ObjectInformation.FileId.Cell,
4019 pVolumeCB->ObjectInformation.FileId.Volume,
4020 pVolumeCB->ObjectInformation.FileId.Vnode,
4021 pVolumeCB->ObjectInformation.FileId.Unique);
4023 InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
4025 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
4026 AFS_TRACE_LEVEL_VERBOSE,
4027 "AFSBuildMountPointTarget Increment count on volume %08lX Cnt %d\n",
4029 pVolumeCB->VolumeReferenceCount);
4031 *TargetVolumeCB = pVolumeCB;
4038 AFSExFreePool( pDirEntry);
4046 AFSBuildRootVolume( IN GUID *AuthGroup,
4047 IN AFSFileID *FileId,
4048 OUT AFSVolumeCB **TargetVolumeCB)
4051 NTSTATUS ntStatus = STATUS_SUCCESS;
4052 AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
4053 AFSDirectoryCB *pDirNode = NULL;
4054 UNICODE_STRING uniDirName, uniTargetName;
4055 ULONGLONG ullIndex = 0;
4056 AFSVolumeCB *pVolumeCB = NULL;
4061 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4062 AFS_TRACE_LEVEL_VERBOSE_2,
4063 "AFSBuildRootVolume Building target volume for FID %08lX-%08lX-%08lX-%08lX\n",
4069 ullIndex = AFSCreateHighIndex( FileId);
4071 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
4072 AFS_TRACE_LEVEL_VERBOSE,
4073 "AFSBuildRootVolume Acquiring RDR VolumeTreeLock lock %08lX EXCL %08lX\n",
4074 &pDevExt->Specific.RDR.VolumeTreeLock,
4075 PsGetCurrentThread());
4077 AFSAcquireShared( &pDevExt->Specific.RDR.VolumeTreeLock,
4080 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4081 AFS_TRACE_LEVEL_VERBOSE_2,
4082 "AFSBuildRootVolume Locating volume for target %I64X\n",
4085 ntStatus = AFSLocateHashEntry( pDevExt->Specific.RDR.VolumeTree.TreeHead,
4087 (AFSBTreeEntry **)&pVolumeCB);
4090 // We can be processing a request for a target that is on a volume
4091 // we have never seen before.
4094 if( pVolumeCB == NULL)
4098 // Locking is held correctly in init routine
4101 AFSReleaseResource( &pDevExt->Specific.RDR.VolumeTreeLock);
4104 // Go init the root of the volume
4107 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4108 AFS_TRACE_LEVEL_VERBOSE_2,
4109 "AFSBuildRootVolume Initializing root for FID %08lX-%08lX-%08lX-%08lX\n",
4115 ntStatus = AFSInitVolume( AuthGroup,
4119 if( !NT_SUCCESS( ntStatus))
4122 try_return( ntStatus);
4129 // Just to ensure that things don't get torn down AND we don't create a
4130 // deadlock with invalidation
4133 InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
4135 AFSReleaseResource( &pDevExt->Specific.RDR.VolumeTreeLock);
4137 AFSAcquireExcl( pVolumeCB->VolumeLock,
4140 InterlockedDecrement( &pVolumeCB->VolumeReferenceCount);
4144 if( pVolumeCB->RootFcb == NULL)
4148 // Initialize the root fcb for this volume
4151 ntStatus = AFSInitRootFcb( (ULONGLONG)PsGetCurrentProcessId(),
4154 if( !NT_SUCCESS( ntStatus))
4157 AFSReleaseResource( pVolumeCB->VolumeLock);
4159 try_return( ntStatus);
4163 // Drop the lock acquired above
4166 AFSReleaseResource( &pVolumeCB->RootFcb->NPFcb->Resource);
4169 AFSConvertToShared( pVolumeCB->VolumeLock);
4171 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4172 AFS_TRACE_LEVEL_VERBOSE_2,
4173 "AFSBuildRootVolume Evaluated target of %wZ FID %08lX-%08lX-%08lX-%08lX as root volume\n",
4174 &pVolumeCB->DirectoryCB->NameInformation.FileName,
4175 pVolumeCB->ObjectInformation.FileId.Cell,
4176 pVolumeCB->ObjectInformation.FileId.Volume,
4177 pVolumeCB->ObjectInformation.FileId.Vnode,
4178 pVolumeCB->ObjectInformation.FileId.Unique);
4180 InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
4182 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
4183 AFS_TRACE_LEVEL_VERBOSE,
4184 "AFSBuildRootVolume Increment count on volume %08lX Cnt %d\n",
4186 pVolumeCB->VolumeReferenceCount);
4188 *TargetVolumeCB = pVolumeCB;
4199 AFSProcessDFSLink( IN AFSDirectoryCB *DirEntry,
4200 IN PFILE_OBJECT FileObject,
4201 IN UNICODE_STRING *RemainingPath)
4204 NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST;
4205 UNICODE_STRING uniReparseName;
4206 UNICODE_STRING uniMUPDeviceName;
4207 AFSDirEnumEntry *pDirEntry = NULL;
4208 GUID *pAuthGroup = NULL;
4214 // Build up the name to reparse
4217 RtlInitUnicodeString( &uniMUPDeviceName,
4220 uniReparseName.Length = 0;
4221 uniReparseName.Buffer = NULL;
4224 // Be sure we have a target name
4227 if( DirEntry->NameInformation.TargetName.Length == 0)
4230 if( DirEntry->ObjectInformation->Fcb != NULL)
4232 pAuthGroup = &DirEntry->ObjectInformation->Fcb->AuthGroup;
4235 ntStatus = AFSEvaluateTargetByID( DirEntry->ObjectInformation,
4240 if( !NT_SUCCESS( ntStatus) ||
4241 pDirEntry->TargetNameLength == 0)
4244 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4245 AFS_TRACE_LEVEL_ERROR,
4246 "AFSProcessDFSLink EvaluateTargetByID failed for Fcb %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
4247 &DirEntry->NameInformation.FileName,
4248 DirEntry->ObjectInformation->FileId.Cell,
4249 DirEntry->ObjectInformation->FileId.Volume,
4250 DirEntry->ObjectInformation->FileId.Vnode,
4251 DirEntry->ObjectInformation->FileId.Unique,
4254 if( NT_SUCCESS( ntStatus))
4257 ntStatus = STATUS_ACCESS_DENIED;
4260 try_return( ntStatus);
4264 // Update the target name
4267 AFSAcquireExcl( &DirEntry->NonPaged->Lock,
4270 ntStatus = AFSUpdateTargetName( &DirEntry->NameInformation.TargetName,
4272 (WCHAR *)((char *)pDirEntry + pDirEntry->TargetNameOffset),
4273 (USHORT)pDirEntry->TargetNameLength);
4275 if( !NT_SUCCESS( ntStatus))
4278 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4279 AFS_TRACE_LEVEL_ERROR,
4280 "AFSProcessDFSLink UpdateTargetName failed for Fcb %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
4281 &DirEntry->NameInformation.FileName,
4282 DirEntry->ObjectInformation->FileId.Cell,
4283 DirEntry->ObjectInformation->FileId.Volume,
4284 DirEntry->ObjectInformation->FileId.Vnode,
4285 DirEntry->ObjectInformation->FileId.Unique,
4288 AFSReleaseResource( &DirEntry->NonPaged->Lock);
4290 try_return( ntStatus);
4293 AFSConvertToShared( &DirEntry->NonPaged->Lock);
4297 AFSAcquireShared( &DirEntry->NonPaged->Lock,
4301 uniReparseName.MaximumLength = uniMUPDeviceName.Length +
4303 DirEntry->NameInformation.TargetName.Length +
4306 if( RemainingPath != NULL &&
4307 RemainingPath->Length > 0)
4310 uniReparseName.MaximumLength += RemainingPath->Length;
4314 // Allocate the reparse buffer
4317 uniReparseName.Buffer = (WCHAR *)AFSExAllocatePoolWithTag( PagedPool,
4318 uniReparseName.MaximumLength,
4319 AFS_REPARSE_NAME_TAG);
4321 if( uniReparseName.Buffer == NULL)
4324 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4325 AFS_TRACE_LEVEL_ERROR,
4326 "AFSProcessDFSLink uniReparseName.Buffer == NULL Fcb %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
4327 &DirEntry->NameInformation.FileName,
4328 DirEntry->ObjectInformation->FileId.Cell,
4329 DirEntry->ObjectInformation->FileId.Volume,
4330 DirEntry->ObjectInformation->FileId.Vnode,
4331 DirEntry->ObjectInformation->FileId.Unique,
4332 STATUS_INSUFFICIENT_RESOURCES);
4334 AFSReleaseResource( &DirEntry->NonPaged->Lock);
4336 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
4340 // Start building the name
4343 RtlCopyMemory( uniReparseName.Buffer,
4344 uniMUPDeviceName.Buffer,
4345 uniMUPDeviceName.Length);
4347 uniReparseName.Length = uniMUPDeviceName.Length;
4349 if( DirEntry->NameInformation.TargetName.Buffer[ 0] != L'\\')
4352 uniReparseName.Buffer[ uniReparseName.Length/sizeof( WCHAR)] = L'\\';
4354 uniReparseName.Length += sizeof( WCHAR);
4357 RtlCopyMemory( &uniReparseName.Buffer[ uniReparseName.Length/sizeof( WCHAR)],
4358 DirEntry->NameInformation.TargetName.Buffer,
4359 DirEntry->NameInformation.TargetName.Length);
4361 uniReparseName.Length += DirEntry->NameInformation.TargetName.Length;
4363 AFSReleaseResource( &DirEntry->NonPaged->Lock);
4365 if( RemainingPath != NULL &&
4366 RemainingPath->Length > 0)
4369 if( uniReparseName.Buffer[ (uniReparseName.Length/sizeof( WCHAR)) - 1] != L'\\' &&
4370 RemainingPath->Buffer[ 0] != L'\\')
4373 uniReparseName.Buffer[ uniReparseName.Length/sizeof( WCHAR)] = L'\\';
4375 uniReparseName.Length += sizeof( WCHAR);
4378 RtlCopyMemory( &uniReparseName.Buffer[ uniReparseName.Length/sizeof( WCHAR)],
4379 RemainingPath->Buffer,
4380 RemainingPath->Length);
4382 uniReparseName.Length += RemainingPath->Length;
4386 // Update the name in the file object
4389 if( FileObject->FileName.Buffer != NULL)
4392 AFSExFreePool( FileObject->FileName.Buffer);
4395 FileObject->FileName = uniReparseName;
4397 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4398 AFS_TRACE_LEVEL_VERBOSE,
4399 "AFSProcessDFSLink Reparsing access to Fcb %wZ FID %08lX-%08lX-%08lX-%08lX to %wZ\n",
4400 &DirEntry->NameInformation.FileName,
4401 DirEntry->ObjectInformation->FileId.Cell,
4402 DirEntry->ObjectInformation->FileId.Volume,
4403 DirEntry->ObjectInformation->FileId.Vnode,
4404 DirEntry->ObjectInformation->FileId.Unique,
4408 // Return status reparse ...
4411 ntStatus = STATUS_REPARSE;
4418 AFSExFreePool( pDirEntry);