2 * Copyright (c) 2008, 2009, 2010, 2011 Kernel Drivers, LLC.
3 * Copyright (c) 2009, 2010, 2011 Your File System, Inc.
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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 AFSObjectInfoCB *pParentObjectInfo = NULL;
67 AFSVolumeCB *pCurrentVolume = *VolumeCB;
68 BOOLEAN bReleaseCurrentVolume = TRUE;
69 BOOLEAN bSubstitutedName = FALSE;
75 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
76 AFS_TRACE_LEVEL_VERBOSE_2,
77 "AFSLocateNameEntry (FO: %08lX) Processing full name %wZ\n",
81 RtlInitUnicodeString( &uniSysName,
84 RtlInitUnicodeString( &uniRelativeName,
87 RtlInitUnicodeString( &uniNoOpName,
91 // Cleanup some parameters
94 if( ComponentName != NULL)
97 ComponentName->Length = 0;
98 ComponentName->MaximumLength = 0;
99 ComponentName->Buffer = NULL;
103 // We will parse through the filename, locating the directory nodes until we encounter a cache miss
104 // Starting at the root node
107 pParentDirEntry = NULL;
109 pDirEntry = *ParentDirectoryCB;
111 uniPathName = *ParsedPathName;
113 uniFullPathName = *RootPathName;
115 uniComponentName.Length = uniComponentName.MaximumLength = 0;
116 uniComponentName.Buffer = NULL;
118 uniRemainingPath.Length = uniRemainingPath.MaximumLength = 0;
119 uniRemainingPath.Buffer = NULL;
121 uniSearchName.Length = uniSearchName.MaximumLength = 0;
122 uniSearchName.Buffer = NULL;
124 ASSERT( pCurrentVolume->VolumeReferenceCount > 1);
130 // Check our total link count for this name array
133 if( pNameArray->LinkCount >= (LONG)pDevExt->Specific.RDR.MaxLinkCount)
136 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
139 pCurrentObject = pDirEntry->ObjectInformation;
141 KeQueryTickCount( &pCurrentObject->LastAccessCount);
144 // Check that the directory entry is not deleted or pending delete
147 if( BooleanFlagOn( pDirEntry->Flags, AFS_DIR_ENTRY_DELETED))
150 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
151 AFS_TRACE_LEVEL_ERROR,
152 "AFSLocateNameEntry (FO: %08lX) Deleted parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
154 &pDirEntry->NameInformation.FileName,
155 pCurrentObject->FileId.Cell,
156 pCurrentObject->FileId.Volume,
157 pCurrentObject->FileId.Vnode,
158 pCurrentObject->FileId.Unique,
159 STATUS_FILE_DELETED);
161 try_return( ntStatus = STATUS_FILE_DELETED);
164 if( BooleanFlagOn( pDirEntry->Flags, AFS_DIR_ENTRY_PENDING_DELETE))
167 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
168 AFS_TRACE_LEVEL_ERROR,
169 "AFSLocateNameEntry (FO: %08lX) Delete pending on %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
171 &pDirEntry->NameInformation.FileName,
172 pCurrentObject->FileId.Cell,
173 pCurrentObject->FileId.Volume,
174 pCurrentObject->FileId.Vnode,
175 pCurrentObject->FileId.Unique,
176 STATUS_DELETE_PENDING);
178 try_return( ntStatus = STATUS_DELETE_PENDING);
182 // Check if the directory requires verification
185 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_VERIFY) &&
186 ( pCurrentObject->FileType != AFS_FILE_TYPE_DIRECTORY ||
187 !AFSIsEnumerationInProcess( pCurrentObject)))
190 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
191 AFS_TRACE_LEVEL_VERBOSE,
192 "AFSLocateNameEntry (FO: %08lX) Verifying parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
194 &pDirEntry->NameInformation.FileName,
195 pCurrentObject->FileId.Cell,
196 pCurrentObject->FileId.Volume,
197 pCurrentObject->FileId.Vnode,
198 pCurrentObject->FileId.Unique);
201 // Directory TreeLock should be exclusively held
204 AFSAcquireExcl( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
207 ntStatus = AFSVerifyEntry( AuthGroup,
210 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
212 if( !NT_SUCCESS( ntStatus))
215 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
216 AFS_TRACE_LEVEL_ERROR,
217 "AFSLocateNameEntry (FO: %08lX) Failed to verify parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
219 &pDirEntry->NameInformation.FileName,
220 pCurrentObject->FileId.Cell,
221 pCurrentObject->FileId.Volume,
222 pCurrentObject->FileId.Vnode,
223 pCurrentObject->FileId.Unique,
226 try_return( ntStatus);
231 // Ensure the parent node has been evaluated, if not then go do it now
234 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_NOT_EVALUATED) ||
235 pCurrentObject->FileType == AFS_FILE_TYPE_UNKNOWN)
238 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
239 AFS_TRACE_LEVEL_VERBOSE,
240 "AFSLocateNameEntry (FO: %08lX) Evaluating parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
242 &pDirEntry->NameInformation.FileName,
243 pCurrentObject->FileId.Cell,
244 pCurrentObject->FileId.Volume,
245 pCurrentObject->FileId.Vnode,
246 pCurrentObject->FileId.Unique);
248 ntStatus = AFSEvaluateNode( AuthGroup,
251 if( !NT_SUCCESS( ntStatus))
254 if ( ntStatus == STATUS_NOT_A_DIRECTORY)
257 if ( pCurrentObject->ParentObjectInformation == NULL)
260 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
261 AFS_TRACE_LEVEL_ERROR,
262 "AFSLocateNameEntry (FO: %08lX) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX PARENT NULL Status %08lX\n",
264 &pDirEntry->NameInformation.FileName,
265 pCurrentObject->FileId.Cell,
266 pCurrentObject->FileId.Volume,
267 pCurrentObject->FileId.Vnode,
268 pCurrentObject->FileId.Unique,
274 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
275 AFS_TRACE_LEVEL_ERROR,
276 "AFSLocateNameEntry (FO: %08lX) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX PARENT %08lX-%08lX-%08lX-%08lX Status %08lX\n",
278 &pDirEntry->NameInformation.FileName,
279 pCurrentObject->FileId.Cell,
280 pCurrentObject->FileId.Volume,
281 pCurrentObject->FileId.Vnode,
282 pCurrentObject->FileId.Unique,
283 pCurrentObject->ParentObjectInformation->FileId.Cell,
284 pCurrentObject->ParentObjectInformation->FileId.Volume,
285 pCurrentObject->ParentObjectInformation->FileId.Vnode,
286 pCurrentObject->ParentObjectInformation->FileId.Unique,
292 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
293 AFS_TRACE_LEVEL_ERROR,
294 "AFSLocateNameEntry (FO: %08lX) Failed to evaluate parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
296 &pDirEntry->NameInformation.FileName,
297 pCurrentObject->FileId.Cell,
298 pCurrentObject->FileId.Volume,
299 pCurrentObject->FileId.Vnode,
300 pCurrentObject->FileId.Unique,
304 try_return( ntStatus);
307 ClearFlag( pCurrentObject->Flags, AFS_OBJECT_FLAGS_NOT_EVALUATED);
311 // If this is a mount point or symlink then go get the real directory node
314 switch( pCurrentObject->FileType)
317 case AFS_FILE_TYPE_SYMLINK:
320 UNICODE_STRING uniTempName;
321 WCHAR *pTmpBuffer = NULL;
325 // Check if the flag is set to NOT evaluate a symlink
326 // and we are done with the parsing
329 if( BooleanFlagOn( Flags, AFS_LOCATE_FLAGS_NO_SL_TARGET_EVAL) &&
330 uniRemainingPath.Length == 0)
334 // Pass back the directory entries
337 *ParentDirectoryCB = pParentDirEntry;
339 *DirectoryCB = pDirEntry;
341 *VolumeCB = pCurrentVolume;
343 *RootPathName = uniFullPathName;
345 try_return( ntStatus);
348 AFSAcquireExcl( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
351 AFSAcquireExcl( &pDirEntry->NonPaged->Lock,
354 if( pDirEntry->NameInformation.TargetName.Length == 0)
358 // We'll reset the DV to ensure we validate the metadata content
361 pCurrentObject->DataVersion.QuadPart = (ULONGLONG)-1;
363 SetFlag( pCurrentObject->Flags, AFS_OBJECT_FLAGS_VERIFY);
365 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
366 AFS_TRACE_LEVEL_VERBOSE,
367 "AFSLocateNameEntry (FO: %08lX) Verifying symlink parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
369 &pDirEntry->NameInformation.FileName,
370 pCurrentObject->FileId.Cell,
371 pCurrentObject->FileId.Volume,
372 pCurrentObject->FileId.Vnode,
373 pCurrentObject->FileId.Unique);
376 // Directory TreeLock should be exclusively held
379 ntStatus = AFSVerifyEntry( AuthGroup,
382 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
384 if( !NT_SUCCESS( ntStatus))
387 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
388 AFS_TRACE_LEVEL_ERROR,
389 "AFSLocateNameEntry (FO: %08lX) Failed to verify symlink parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
391 &pDirEntry->NameInformation.FileName,
392 pCurrentObject->FileId.Cell,
393 pCurrentObject->FileId.Volume,
394 pCurrentObject->FileId.Vnode,
395 pCurrentObject->FileId.Unique,
398 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
400 try_return( ntStatus);
404 // If the type changed then reprocess this entry
407 if( pCurrentObject->FileType != AFS_FILE_TYPE_SYMLINK)
410 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
418 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
422 // If we were given a zero length target name then deny access to the entry
425 if( pDirEntry->NameInformation.TargetName.Length == 0)
428 ntStatus = STATUS_REPARSE_POINT_NOT_RESOLVED;
430 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
431 AFS_TRACE_LEVEL_ERROR,
432 "AFSLocateNameEntry (FO: %08lX) Failed to retrieve target name for symlink %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
434 &pDirEntry->NameInformation.FileName,
435 pCurrentObject->FileId.Cell,
436 pCurrentObject->FileId.Volume,
437 pCurrentObject->FileId.Vnode,
438 pCurrentObject->FileId.Unique,
441 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
443 try_return( ntStatus);
446 if( AFSIsRelativeName( &pDirEntry->NameInformation.TargetName))
449 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
450 AFS_TRACE_LEVEL_VERBOSE,
451 "AFSLocateNameEntry (FO: %08lX) Processing relative symlink target %wZ for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
453 &pDirEntry->NameInformation.TargetName,
454 &pDirEntry->NameInformation.FileName,
455 pCurrentObject->FileId.Cell,
456 pCurrentObject->FileId.Volume,
457 pCurrentObject->FileId.Vnode,
458 pCurrentObject->FileId.Unique);
461 // We'll substitute this name into the current process name
462 // starting at where we sit in the path
465 uniTempName.Length = 0;
466 uniTempName.MaximumLength = (USHORT)((char *)uniComponentName.Buffer - (char *)uniFullPathName.Buffer) +
467 pDirEntry->NameInformation.TargetName.Length +
469 uniRemainingPath.Length;
471 uniTempName.Buffer = (WCHAR *)AFSExAllocatePoolWithTag( PagedPool,
472 uniTempName.MaximumLength,
473 AFS_NAME_BUFFER_ONE_TAG);
475 if( uniTempName.Buffer == NULL)
478 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
480 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
484 // We have so first copy in the portion up to the component
488 RtlCopyMemory( uniTempName.Buffer,
489 uniFullPathName.Buffer,
490 (ULONG)((char *)uniComponentName.Buffer - (char *)uniFullPathName.Buffer));
492 uniTempName.Length = (USHORT)((char *)uniComponentName.Buffer - (char *)uniFullPathName.Buffer);
494 if( bAllocatedSymLinkBuffer ||
498 pTmpBuffer = uniFullPathName.Buffer;
501 bAllocatedSymLinkBuffer = TRUE;
504 // Have we parsed this name yet? Better have at least once ...
507 if( uniComponentName.Length == 0)
513 // Copy in the target name ...
516 RtlCopyMemory( &uniTempName.Buffer[ uniTempName.Length/sizeof( WCHAR)],
517 pDirEntry->NameInformation.TargetName.Buffer,
518 pDirEntry->NameInformation.TargetName.Length);
520 uniPathName.Buffer = &uniTempName.Buffer[ uniTempName.Length/sizeof( WCHAR)];
522 uniPathName.Length += pDirEntry->NameInformation.TargetName.Length;
523 uniPathName.MaximumLength = uniTempName.MaximumLength;
525 uniTempName.Length += pDirEntry->NameInformation.TargetName.Length;
528 // And now any remaining portion of the name
531 if( uniRemainingPath.Length > 0)
534 if( uniRemainingPath.Buffer[ 0] != L'\\')
537 uniRemainingPath.Buffer--;
538 uniRemainingPath.Length += sizeof( WCHAR);
540 uniPathName.Length += sizeof( WCHAR);
543 RtlCopyMemory( &uniTempName.Buffer[ uniTempName.Length/sizeof( WCHAR)],
544 uniRemainingPath.Buffer,
545 uniRemainingPath.Length);
547 uniTempName.Length += uniRemainingPath.Length;
550 uniFullPathName = uniTempName;
552 if( pTmpBuffer != NULL)
555 AFSExFreePoolWithTag( pTmpBuffer, 0);
558 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
561 // Dereference the current entry ..
564 lCount = InterlockedDecrement( &pDirEntry->OpenReferenceCount);
566 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
567 AFS_TRACE_LEVEL_VERBOSE,
568 "AFSLocateNameEntry Decrement1 count on %wZ DE %p Ccb %p Cnt %d\n",
569 &pDirEntry->NameInformation.FileName,
575 // OK, need to back up one entry for the correct parent since the current
576 // entry we are on is the symlink itself
579 pDirEntry = AFSBackupEntry( pNameArray);
582 // Increment our reference on this dir entry
585 lCount = InterlockedIncrement( &pDirEntry->OpenReferenceCount);
587 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
588 AFS_TRACE_LEVEL_VERBOSE,
589 "AFSLocateNameEntry Increment1 count on %wZ DE %p Ccb %p Cnt %d\n",
590 &pDirEntry->NameInformation.FileName,
595 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_ROOT_VOLUME))
598 pParentDirEntry = NULL;
603 pParentDirEntry = AFSGetParentEntry( pNameArray);
605 ASSERT( pParentDirEntry != pDirEntry);
611 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
612 AFS_TRACE_LEVEL_VERBOSE,
613 "AFSLocateNameEntry (FO: %08lX) Processing absolute symlink target %wZ for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
615 &pDirEntry->NameInformation.TargetName,
616 &pDirEntry->NameInformation.FileName,
617 pCurrentObject->FileId.Cell,
618 pCurrentObject->FileId.Volume,
619 pCurrentObject->FileId.Vnode,
620 pCurrentObject->FileId.Unique);
623 // We'll substitute this name into the current process name
624 // starting at where we sit in the path
627 uniTempName.Length = 0;
628 uniTempName.MaximumLength = pDirEntry->NameInformation.TargetName.Length +
630 uniRemainingPath.Length;
632 uniTempName.Buffer = (WCHAR *)AFSExAllocatePoolWithTag( PagedPool,
633 uniTempName.MaximumLength,
634 AFS_NAME_BUFFER_TWO_TAG);
636 if( uniTempName.Buffer == NULL)
639 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
641 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
644 if( bAllocatedSymLinkBuffer ||
648 pTmpBuffer = uniFullPathName.Buffer;
651 bAllocatedSymLinkBuffer = TRUE;
654 // Have we parsed this name yet? Better have at least once ...
657 if( uniComponentName.Length == 0)
663 // Copy in the target name ...
666 RtlCopyMemory( uniTempName.Buffer,
667 pDirEntry->NameInformation.TargetName.Buffer,
668 pDirEntry->NameInformation.TargetName.Length);
670 uniTempName.Length = pDirEntry->NameInformation.TargetName.Length;
673 // And now any remaining portion of the name
676 if( uniRemainingPath.Length > 0)
679 if( uniRemainingPath.Buffer[ 0] != L'\\')
682 uniRemainingPath.Buffer--;
683 uniRemainingPath.Length += sizeof( WCHAR);
686 RtlCopyMemory( &uniTempName.Buffer[ uniTempName.Length/sizeof( WCHAR)],
687 uniRemainingPath.Buffer,
688 uniRemainingPath.Length);
690 uniTempName.Length += uniRemainingPath.Length;
693 uniFullPathName = uniTempName;
695 uniPathName = uniTempName;
697 if( pTmpBuffer != NULL)
700 AFSExFreePoolWithTag( pTmpBuffer, 0);
703 AFSReleaseResource( &pDirEntry->NonPaged->Lock);
706 // If our current volume is not the global root then make it so ...
709 if( pCurrentVolume != AFSGlobalRoot)
712 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
713 AFS_TRACE_LEVEL_VERBOSE,
714 "AFSLocateNameEntry (FO: %08lX) Current volume not global, resetting for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
716 &pDirEntry->NameInformation.FileName,
717 pCurrentObject->FileId.Cell,
718 pCurrentObject->FileId.Volume,
719 pCurrentObject->FileId.Vnode,
720 pCurrentObject->FileId.Unique);
722 lCount = InterlockedDecrement( &pCurrentVolume->VolumeReferenceCount);
724 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
725 AFS_TRACE_LEVEL_VERBOSE,
726 "AFSLocateNameEntry Decrement count on volume %08lX Cnt %d\n",
730 pCurrentVolume = AFSGlobalRoot;
732 lCount = InterlockedIncrement( &pCurrentVolume->VolumeReferenceCount);
734 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
735 AFS_TRACE_LEVEL_VERBOSE,
736 "AFSLocateNameEntry Increment count on volume %08lX Cnt %d\n",
742 // Dereference our current dir entry
745 lCount = InterlockedDecrement( &pDirEntry->OpenReferenceCount);
747 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
748 AFS_TRACE_LEVEL_VERBOSE,
749 "AFSLocateNameEntry Decrement2 count on %wZ DE %p Ccb %p Cnt %d\n",
750 &pDirEntry->NameInformation.FileName,
755 pDirEntry = pCurrentVolume->DirectoryCB;
758 // Reference the new dir entry
761 lCount = InterlockedIncrement( &pDirEntry->OpenReferenceCount);
763 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
764 AFS_TRACE_LEVEL_VERBOSE,
765 "AFSLocateNameEntry Increment2 count on %wZ DE %p Ccb %p Cnt %d\n",
766 &pDirEntry->NameInformation.FileName,
772 // Reset the name array
773 // Persist the link count in the name array
776 lLinkCount = pNameArray->LinkCount;
778 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
779 AFS_TRACE_LEVEL_VERBOSE,
780 "AFSLocateNameEntry (FO: %08lX) Resetting name array for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
782 &pDirEntry->NameInformation.FileName,
783 pCurrentObject->FileId.Cell,
784 pCurrentObject->FileId.Volume,
785 pCurrentObject->FileId.Vnode,
786 pCurrentObject->FileId.Unique);
788 AFSResetNameArray( pNameArray,
791 pNameArray->LinkCount = lLinkCount;
794 // Process over the \\<Global root> portion of the name
797 FsRtlDissectName( uniPathName,
801 if( RtlCompareUnicodeString( &uniComponentName,
806 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
807 AFS_TRACE_LEVEL_ERROR,
808 "AFSLocateNameEntry Name %wZ contains invalid server name\n",
812 // The correct response would be STATUS_OBJECT_PATH_INVALID
813 // but that prevents cmd.exe from performing a recursive
814 // directory enumeration when opening a directory entry
815 // that represents a symlink to an invalid path is discovered.
817 try_return( ntStatus = STATUS_OBJECT_PATH_NOT_FOUND);
820 uniPathName = uniRemainingPath;
822 pParentDirEntry = NULL;
826 // Increment our link count
829 lCount = InterlockedIncrement( &pNameArray->LinkCount);
834 case AFS_FILE_TYPE_MOUNTPOINT:
838 // Check if the flag is set to NOT evaluate a mount point
839 // and we are done with the parsing
842 if( BooleanFlagOn( Flags, AFS_LOCATE_FLAGS_NO_MP_TARGET_EVAL) &&
843 uniRemainingPath.Length == 0)
847 // Pass back the directory entries
850 *ParentDirectoryCB = pParentDirEntry;
852 *DirectoryCB = pDirEntry;
854 *VolumeCB = pCurrentVolume;
856 *RootPathName = uniFullPathName;
858 try_return( ntStatus);
861 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
862 AFS_TRACE_LEVEL_VERBOSE,
863 "AFSLocateNameEntry (FO: %08lX) Building MP target for parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
865 &pDirEntry->NameInformation.FileName,
866 pCurrentObject->FileId.Cell,
867 pCurrentObject->FileId.Volume,
868 pCurrentObject->FileId.Vnode,
869 pCurrentObject->FileId.Unique);
872 // Go retrieve the target entry for this node
873 // Release the current volume cb entry since we would
874 // have lock inversion in the following call
875 // Also decrement the ref count on the volume
878 ASSERT( pCurrentVolume->VolumeReferenceCount > 1);
880 lCount = InterlockedDecrement( &pCurrentVolume->VolumeReferenceCount);
882 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
883 AFS_TRACE_LEVEL_VERBOSE,
884 "AFSLocateNameEntry Decrement2 count on volume %08lX Cnt %d\n",
886 pCurrentVolume->VolumeReferenceCount);
888 ntStatus = AFSBuildMountPointTarget( AuthGroup,
892 if( !NT_SUCCESS( ntStatus))
895 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
896 AFS_TRACE_LEVEL_ERROR,
897 "AFSLocateNameEntry (FO: %08lX) Failed to build MP target for parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
899 &pDirEntry->NameInformation.FileName,
900 pCurrentObject->FileId.Cell,
901 pCurrentObject->FileId.Volume,
902 pCurrentObject->FileId.Vnode,
903 pCurrentObject->FileId.Unique,
907 // We already decremented the current volume above
910 bReleaseCurrentVolume = FALSE;
912 try_return( ntStatus);
915 ASSERT( pCurrentVolume->VolumeReferenceCount > 1);
918 // The name array stores both the mount point and the target.
919 // Insert the target.
922 AFSInsertNextElement( pNameArray,
923 pCurrentVolume->DirectoryCB);
926 // We want to restart processing here on the new parent ...
927 // Deref and ref count the entries
930 lCount = InterlockedDecrement( &pDirEntry->OpenReferenceCount);
932 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
933 AFS_TRACE_LEVEL_VERBOSE,
934 "AFSLocateNameEntry Decrement3 count on %wZ DE %p Ccb %p Cnt %d\n",
935 &pDirEntry->NameInformation.FileName,
940 pDirEntry = pCurrentVolume->DirectoryCB;
942 lCount = InterlockedIncrement( &pDirEntry->OpenReferenceCount);
944 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
945 AFS_TRACE_LEVEL_VERBOSE,
946 "AFSLocateNameEntry Increment3 count on %wZ DE %p Ccb %p Cnt %d\n",
947 &pDirEntry->NameInformation.FileName,
952 pParentDirEntry = NULL;
955 // Increment our link count
958 lCount = InterlockedIncrement( &pNameArray->LinkCount);
963 case AFS_FILE_TYPE_DFSLINK:
966 if( BooleanFlagOn( Flags, AFS_LOCATE_FLAGS_NO_DFS_LINK_EVAL))
970 // Pass back the directory entries
973 *ParentDirectoryCB = pParentDirEntry;
975 *DirectoryCB = pDirEntry;
977 *VolumeCB = pCurrentVolume;
979 *RootPathName = uniFullPathName;
981 try_return( ntStatus);
985 // This is a DFS link so we need to update the file name and return STATUS_REPARSE to the
986 // system for it to reevaluate it
989 if( FileObject != NULL)
992 ntStatus = AFSProcessDFSLink( pDirEntry,
1001 // This is where we have been re-entered from an NP evaluation call via the BuildBranch()
1005 ntStatus = STATUS_INVALID_PARAMETER;
1008 if( ntStatus != STATUS_SUCCESS &&
1009 ntStatus != STATUS_REPARSE)
1012 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1013 AFS_TRACE_LEVEL_ERROR,
1014 "AFSLocateNameEntry (FO: %08lX) Failed to process DFSLink parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1016 &pDirEntry->NameInformation.FileName,
1017 pCurrentObject->FileId.Cell,
1018 pCurrentObject->FileId.Volume,
1019 pCurrentObject->FileId.Vnode,
1020 pCurrentObject->FileId.Unique,
1024 try_return( ntStatus);
1027 case AFS_FILE_TYPE_UNKNOWN:
1028 case AFS_FILE_TYPE_INVALID:
1032 // Something was not processed ...
1035 try_return( ntStatus = STATUS_ACCESS_DENIED);
1038 } /* end of switch */
1041 // If the parent is not initialized then do it now
1044 if( pCurrentObject->FileType == AFS_FILE_TYPE_DIRECTORY &&
1045 !BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
1048 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1049 AFS_TRACE_LEVEL_VERBOSE,
1050 "AFSLocateNameEntry (FO: %08lX) Enumerating parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1052 &pDirEntry->NameInformation.FileName,
1053 pCurrentObject->FileId.Cell,
1054 pCurrentObject->FileId.Volume,
1055 pCurrentObject->FileId.Vnode,
1056 pCurrentObject->FileId.Unique);
1058 AFSAcquireExcl( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1061 if( !BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
1064 ntStatus = AFSEnumerateDirectory( AuthGroup,
1068 if( !NT_SUCCESS( ntStatus))
1071 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1073 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1074 AFS_TRACE_LEVEL_ERROR,
1075 "AFSLocateNameEntry (FO: %08lX) Failed to enumerate parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1077 &pDirEntry->NameInformation.FileName,
1078 pCurrentObject->FileId.Cell,
1079 pCurrentObject->FileId.Volume,
1080 pCurrentObject->FileId.Vnode,
1081 pCurrentObject->FileId.Unique,
1084 try_return( ntStatus);
1087 SetFlag( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED);
1090 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1092 else if( pCurrentObject->FileType == AFS_FILE_TYPE_FILE)
1095 if( uniPathName.Length > 0)
1098 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1099 AFS_TRACE_LEVEL_ERROR,
1100 "AFSLocateNameEntry (FO: %08lX) Encountered file node %wZ FID %08lX-%08lX-%08lX-%08lX in path processing\n",
1102 &pDirEntry->NameInformation.FileName,
1103 pCurrentObject->FileId.Cell,
1104 pCurrentObject->FileId.Volume,
1105 pCurrentObject->FileId.Vnode,
1106 pCurrentObject->FileId.Unique);
1108 // The proper error code to return would be STATUS_OBJECT_PATH_INVALID because
1109 // one of the components of the path is not a directory. However, returning
1110 // that error prevents IIS 7 and 7.5 from being able to serve data out of AFS.
1111 // Instead IIS insists on treating the target file as if it is a directory containing
1112 // a potential web.config file. NTFS and LanMan return STATUS_OBJECT_PATH_NOT_FOUND.
1113 // AFS will follow suit.
1115 ntStatus = STATUS_OBJECT_PATH_NOT_FOUND;
1120 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1121 AFS_TRACE_LEVEL_VERBOSE,
1122 "AFSLocateNameEntry (FO: %08lX) Returning file %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1124 &pDirEntry->NameInformation.FileName,
1125 pCurrentObject->FileId.Cell,
1126 pCurrentObject->FileId.Volume,
1127 pCurrentObject->FileId.Vnode,
1128 pCurrentObject->FileId.Unique);
1131 // Pass back the directory entries
1134 *ParentDirectoryCB = pParentDirEntry;
1136 *DirectoryCB = pDirEntry;
1138 *VolumeCB = pCurrentVolume;
1140 *RootPathName = uniFullPathName;
1143 try_return( ntStatus);
1147 // If we are at the end of the processing, set our returned information and get out
1150 if( uniPathName.Length == 0)
1153 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1154 AFS_TRACE_LEVEL_VERBOSE,
1155 "AFSLocateNameEntry (FO: %08lX) Completed processing returning %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1157 &pDirEntry->NameInformation.FileName,
1158 pCurrentObject->FileId.Cell,
1159 pCurrentObject->FileId.Volume,
1160 pCurrentObject->FileId.Vnode,
1161 pCurrentObject->FileId.Unique);
1164 // Pass back the directory entries
1167 *ParentDirectoryCB = pParentDirEntry;
1169 *DirectoryCB = pDirEntry;
1171 *VolumeCB = pCurrentVolume;
1173 *RootPathName = uniFullPathName;
1175 try_return( ntStatus);
1179 // We may have returned to the top of the while( TRUE)
1181 if( bSubstituteName &&
1182 uniSearchName.Buffer != NULL)
1185 AFSExFreePoolWithTag( uniSearchName.Buffer, 0);
1187 bSubstituteName = FALSE;
1189 uniSearchName.Length = uniSearchName.MaximumLength = 0;
1190 uniSearchName.Buffer = NULL;
1193 ulSubstituteIndex = 1;
1195 ntStatus = STATUS_SUCCESS;
1198 // Get the next component name
1201 FsRtlDissectName( uniPathName,
1206 // Check for the . and .. in the path
1209 if( RtlCompareUnicodeString( &uniComponentName,
1214 uniPathName = uniRemainingPath;
1219 if( RtlCompareUnicodeString( &uniComponentName,
1224 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1225 AFS_TRACE_LEVEL_VERBOSE,
1226 "AFSLocateNameEntry (FO: %08lX) Backing up entry from %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1228 &pDirEntry->NameInformation.FileName,
1229 pCurrentObject->FileId.Cell,
1230 pCurrentObject->FileId.Volume,
1231 pCurrentObject->FileId.Vnode,
1232 pCurrentObject->FileId.Unique);
1235 // Need to back up one entry in the name array
1237 lCount = InterlockedDecrement( &pDirEntry->OpenReferenceCount);
1239 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1240 AFS_TRACE_LEVEL_VERBOSE,
1241 "AFSLocateNameEntry Decrement4 count on %wZ DE %p Ccb %p Cnt %d\n",
1242 &pDirEntry->NameInformation.FileName,
1247 pDirEntry = AFSBackupEntry( NameArray);
1249 if( pDirEntry == NULL)
1252 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1253 AFS_TRACE_LEVEL_ERROR,
1254 "AFSLocateNameEntry AFSBackupEntry failed\n");
1256 try_return(ntStatus = STATUS_OBJECT_PATH_INVALID);
1259 lCount = InterlockedIncrement( &pDirEntry->OpenReferenceCount);
1261 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_ROOT_VOLUME))
1264 pParentDirEntry = NULL;
1269 pParentDirEntry = AFSGetParentEntry( pNameArray);
1271 ASSERT( pParentDirEntry != pDirEntry);
1274 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1275 AFS_TRACE_LEVEL_VERBOSE,
1276 "AFSLocateNameEntry Increment4 count on %wZ DE %p Ccb %p Cnt %d\n",
1277 &pDirEntry->NameInformation.FileName,
1280 pDirEntry->OpenReferenceCount);
1282 uniPathName = uniRemainingPath;
1288 // Update our pointers
1291 pParentDirEntry = pDirEntry;
1295 uniSearchName = uniComponentName;
1297 while( pDirEntry == NULL)
1301 // If the SearchName contains @SYS then we perform the substitution.
1302 // If there is no substitution we give up.
1305 if( !bSubstituteName &&
1306 FsRtlIsNameInExpression( &uniSysName,
1312 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1313 AFS_TRACE_LEVEL_VERBOSE_2,
1314 "AFSLocateNameEntry (FO: %08lX) Processing @SYS substitution for %wZ Index %08lX\n",
1319 ntStatus = AFSSubstituteSysName( &uniComponentName,
1323 if ( NT_SUCCESS( ntStatus))
1326 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1327 AFS_TRACE_LEVEL_VERBOSE_2,
1328 "AFSLocateNameEntry (FO: %08lX) Located substitution %wZ for %wZ Index %08lX\n",
1335 // Go reparse the name again
1338 bSubstituteName = TRUE;
1340 ulSubstituteIndex++; // For the next entry, if needed
1342 continue; // while( pDirEntry == NULL)
1347 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1348 AFS_TRACE_LEVEL_ERROR,
1349 "AFSLocateNameEntry (FO: %08lX) Failed to locate substitute string for %wZ Index %08lX Status %08lX\n",
1355 if( ntStatus == STATUS_OBJECT_NAME_NOT_FOUND)
1359 // Pass back the directory entries
1362 *ParentDirectoryCB = pParentDirEntry;
1364 *DirectoryCB = NULL;
1366 *VolumeCB = pCurrentVolume;
1368 if( ComponentName != NULL)
1371 *ComponentName = uniComponentName;
1374 *RootPathName = uniFullPathName;
1378 // We can't possibly have a pDirEntry since the lookup failed
1380 try_return( ntStatus);
1385 // Generate the CRC on the node and perform a case sensitive lookup
1388 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1389 AFS_TRACE_LEVEL_VERBOSE_2,
1390 "AFSLocateNameEntry (FO: %08lX) Searching for entry %wZ case sensitive\n",
1394 ulCRC = AFSGenerateCRC( &uniSearchName,
1397 AFSAcquireShared( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
1400 AFSLocateCaseSensitiveDirEntry( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
1404 if( pDirEntry == NULL)
1408 // Missed so perform a case insensitive lookup
1411 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1412 AFS_TRACE_LEVEL_VERBOSE_2,
1413 "AFSLocateNameEntry (FO: %08lX) Searching for entry %wZ case insensitive\n",
1417 ulCRC = AFSGenerateCRC( &uniSearchName,
1420 AFSLocateCaseInsensitiveDirEntry( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
1424 if( pDirEntry == NULL)
1428 // OK, if this component is a valid short name then try
1429 // a lookup in the short name tree
1432 if( !BooleanFlagOn( pDevExt->DeviceFlags, AFS_DEVICE_FLAG_DISABLE_SHORTNAMES) &&
1433 RtlIsNameLegalDOS8Dot3( &uniSearchName,
1438 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1439 AFS_TRACE_LEVEL_VERBOSE_2,
1440 "AFSLocateNameEntry (FO: %08lX) Searching for entry %wZ short name\n",
1444 AFSLocateShortNameDirEntry( pParentDirEntry->ObjectInformation->Specific.Directory.ShortNameTree,
1449 if( pDirEntry == NULL)
1453 // If we substituted a name then reset our search name and try again
1456 if( bSubstituteName)
1459 AFSExFreePoolWithTag( uniSearchName.Buffer, 0);
1461 uniSearchName = uniComponentName;
1463 bSubstituteName = FALSE;
1465 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1467 continue; // while( pDirEntry == NULL)
1470 if( uniRemainingPath.Length > 0)
1473 ntStatus = STATUS_OBJECT_PATH_NOT_FOUND;
1478 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
1480 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1481 AFS_TRACE_LEVEL_VERBOSE,
1482 "AFSLocateNameEntry (FO: %08lX) Returning name not found for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1485 pCurrentObject->FileId.Cell,
1486 pCurrentObject->FileId.Volume,
1487 pCurrentObject->FileId.Vnode,
1488 pCurrentObject->FileId.Unique);
1491 // Pass back the directory entries
1494 *ParentDirectoryCB = pParentDirEntry;
1496 *DirectoryCB = NULL;
1498 *VolumeCB = pCurrentVolume;
1500 if( ComponentName != NULL)
1503 *ComponentName = uniComponentName;
1506 *RootPathName = uniFullPathName;
1509 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1512 // Node name not found so get out
1515 try_return( ntStatus); // while( pDirEntry == NULL)
1522 // Here we have a match on the case insensitive lookup for the name. If there
1523 // Is more than one link entry for this node then fail the lookup request
1526 if( !BooleanFlagOn( pDirEntry->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD) ||
1527 pDirEntry->CaseInsensitiveList.fLink != NULL)
1530 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1532 try_return(ntStatus = STATUS_OBJECT_NAME_COLLISION);
1537 if( pDirEntry != NULL)
1541 // If the verify flag is set on the parent and the current entry is deleted
1542 // revalidate the parent and search again.
1545 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_DELETED) &&
1546 BooleanFlagOn( pParentDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY))
1549 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1551 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1552 AFS_TRACE_LEVEL_VERBOSE,
1553 "AFSLocateNameEntry (FO: %08lX) Verifying(2) parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1555 &pParentDirEntry->NameInformation.FileName,
1556 pParentDirEntry->ObjectInformation->FileId.Cell,
1557 pParentDirEntry->ObjectInformation->FileId.Volume,
1558 pParentDirEntry->ObjectInformation->FileId.Vnode,
1559 pParentDirEntry->ObjectInformation->FileId.Unique);
1562 // Directory TreeLock should be exclusively held
1565 AFSAcquireExcl( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
1568 ntStatus = AFSVerifyEntry( AuthGroup,
1571 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1573 if( !NT_SUCCESS( ntStatus))
1576 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1577 AFS_TRACE_LEVEL_ERROR,
1578 "AFSLocateNameEntry (FO: %08lX) Failed to verify(2) parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1580 &pParentDirEntry->NameInformation.FileName,
1581 pParentDirEntry->ObjectInformation->FileId.Cell,
1582 pParentDirEntry->ObjectInformation->FileId.Volume,
1583 pParentDirEntry->ObjectInformation->FileId.Vnode,
1584 pParentDirEntry->ObjectInformation->FileId.Unique,
1587 try_return( ntStatus);
1590 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1591 AFS_TRACE_LEVEL_VERBOSE,
1592 "AFSLocateNameEntry (FO: %08lX) Reprocessing component %wZ in parent %wZ\n",
1595 &pParentDirEntry->NameInformation.FileName);
1604 // Increment our dir entry ref count
1607 lCount = InterlockedIncrement( &pDirEntry->OpenReferenceCount);
1609 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1610 AFS_TRACE_LEVEL_VERBOSE,
1611 "AFSLocateNameEntry Increment5 count on %wZ DE %p Ccb %p Cnt %d\n",
1612 &pDirEntry->NameInformation.FileName,
1618 AFSReleaseResource( pParentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1620 } // End while( pDirEntry == NULL)
1623 // If we have a dirEntry for this component, perform some basic validation on it
1626 if( pDirEntry != NULL &&
1627 BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_DELETED))
1630 pCurrentObject = pDirEntry->ObjectInformation;
1632 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1633 AFS_TRACE_LEVEL_ERROR,
1634 "AFSLocateNameEntry (FO: %08lX) Deleted entry %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1636 &pDirEntry->NameInformation.FileName,
1637 pCurrentObject->FileId.Cell,
1638 pCurrentObject->FileId.Volume,
1639 pCurrentObject->FileId.Vnode,
1640 pCurrentObject->FileId.Unique);
1643 // This entry was deleted through the invalidation call back so perform cleanup
1647 pParentObjectInfo = pCurrentObject->ParentObjectInformation;
1649 ASSERT( pParentObjectInfo != NULL);
1651 AFSAcquireExcl( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
1654 AFSAcquireExcl( pCurrentObject->VolumeCB->ObjectInfoTree.TreeLock,
1657 lCount = InterlockedDecrement( &pDirEntry->OpenReferenceCount);
1662 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING|AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1663 AFS_TRACE_LEVEL_VERBOSE,
1664 "AFSLocateNameEntry Deleting dir entry %08lX (%08lX) for %wZ\n",
1667 &pDirEntry->NameInformation.FileName);
1670 // Remove and delete the directory entry from the parent list
1673 AFSDeleteDirEntry( pParentObjectInfo,
1676 AFSAcquireShared( &pCurrentObject->NonPagedInfo->ObjectInfoLock,
1679 if( pCurrentObject->ObjectReferenceCount <= 0)
1682 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_INSERTED_HASH_TREE))
1685 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1686 AFS_TRACE_LEVEL_VERBOSE,
1687 "AFSLocateNameEntry Removing object %08lX from volume tree\n",
1690 AFSRemoveHashEntry( &pCurrentObject->VolumeCB->ObjectInfoTree.TreeHead,
1691 &pCurrentObject->TreeEntry);
1693 ClearFlag( pCurrentObject->Flags, AFS_OBJECT_INSERTED_HASH_TREE);
1697 AFSReleaseResource( &pCurrentObject->NonPagedInfo->ObjectInfoLock);
1702 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1703 AFS_TRACE_LEVEL_VERBOSE,
1704 "AFSLocateNameEntry Setting DELETE flag in dir entry %p for %wZ\n",
1706 &pDirEntry->NameInformation.FileName);
1708 SetFlag( pDirEntry->Flags, AFS_DIR_ENTRY_DELETED);
1710 AFSRemoveNameEntry( pParentObjectInfo,
1714 AFSReleaseResource( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
1716 AFSReleaseResource( pCurrentObject->VolumeCB->ObjectInfoTree.TreeLock);
1719 // We deleted the dir entry so check if there is any remaining portion
1720 // of the name to process.
1723 if( uniRemainingPath.Length > 0)
1725 ntStatus = STATUS_OBJECT_PATH_NOT_FOUND;
1730 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
1732 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1733 AFS_TRACE_LEVEL_VERBOSE,
1734 "AFSLocateNameEntry (FO: %08lX) Returning name not found(2) for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1737 pCurrentObject->FileId.Cell,
1738 pCurrentObject->FileId.Volume,
1739 pCurrentObject->FileId.Vnode,
1740 pCurrentObject->FileId.Unique);
1743 // Pass back the directory entries
1746 *ParentDirectoryCB = pParentDirEntry;
1748 *DirectoryCB = NULL;
1750 *VolumeCB = pCurrentVolume;
1752 if( ComponentName != NULL)
1755 *ComponentName = uniComponentName;
1758 *RootPathName = uniFullPathName;
1762 if( ntStatus != STATUS_SUCCESS)
1765 try_return( ntStatus);
1769 // Decrement the previous parent
1772 lCount = InterlockedDecrement( &pParentDirEntry->OpenReferenceCount);
1774 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1775 AFS_TRACE_LEVEL_VERBOSE,
1776 "AFSLocateNameEntry Decrement5 count on Parent %wZ DE %p Ccb %p Cnt %d\n",
1777 &pParentDirEntry->NameInformation.FileName,
1783 // If we ended up substituting a name in the component then update
1784 // the full path and update the pointers
1787 if( bSubstituteName)
1790 BOOLEAN bRelativeOpen = FALSE;
1792 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1793 AFS_TRACE_LEVEL_VERBOSE_2,
1794 "AFSLocateNameEntry (FO: %08lX) Substituting %wZ into %wZ Index %08lX\n",
1800 if( FileObject != NULL &&
1801 FileObject->RelatedFileObject != NULL)
1804 bRelativeOpen = TRUE;
1808 // AFSSubstituteNameInPath will replace the uniFullPathName.Buffer
1809 // and free the prior Buffer contents but only if the fourth
1810 // parameter is TRUE.
1813 ntStatus = AFSSubstituteNameInPath( &uniFullPathName,
1818 bAllocatedSymLinkBuffer ||
1821 if( !NT_SUCCESS( ntStatus))
1824 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1825 AFS_TRACE_LEVEL_ERROR,
1826 "AFSLocateNameEntry (FO: %08lX) Failure to substitute %wZ into %wZ Index %08lX Status %08lX\n",
1833 try_return( ntStatus);
1837 // We have substituted a name into the buffer so if we do this again for this
1838 // path, we need to free up the buffer we allocated.
1841 bSubstitutedName = TRUE;
1845 // Update the search parameters
1848 uniPathName = uniRemainingPath;
1851 // Check if the is a SymLink entry but has no Target FileID or Name. In this
1852 // case it might be a DFS Link so let's go and evaluate it to be sure
1855 if( pCurrentObject->FileType == AFS_FILE_TYPE_SYMLINK &&
1856 pCurrentObject->TargetFileId.Vnode == 0 &&
1857 pCurrentObject->TargetFileId.Unique == 0 &&
1858 pDirEntry->NameInformation.TargetName.Length == 0)
1861 ntStatus = AFSValidateSymLink( AuthGroup,
1864 if( !NT_SUCCESS( ntStatus))
1867 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1868 AFS_TRACE_LEVEL_ERROR,
1869 "AFSLocateNameEntry (FO: %08lX) Failed to evaluate possible DFS Link %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1871 &pDirEntry->NameInformation.FileName,
1872 pCurrentObject->FileId.Cell,
1873 pCurrentObject->FileId.Volume,
1874 pCurrentObject->FileId.Vnode,
1875 pCurrentObject->FileId.Unique,
1878 try_return( ntStatus);
1883 // Update the name array
1886 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1887 AFS_TRACE_LEVEL_VERBOSE,
1888 "AFSLocateNameEntry (FO: %08lX) Inserting name array entry %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1890 &pDirEntry->NameInformation.FileName,
1891 pCurrentObject->FileId.Cell,
1892 pCurrentObject->FileId.Volume,
1893 pCurrentObject->FileId.Vnode,
1894 pCurrentObject->FileId.Unique);
1896 ntStatus = AFSInsertNextElement( pNameArray,
1899 if( !NT_SUCCESS( ntStatus))
1902 try_return( ntStatus);
1908 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1909 AFS_TRACE_LEVEL_VERBOSE,
1910 "AFSLocateNameEntry (FO: %08lX) Completed processing %wZ Status %08lX\n",
1915 if( ( !NT_SUCCESS( ntStatus) &&
1916 ntStatus != STATUS_OBJECT_NAME_NOT_FOUND) ||
1917 ntStatus == STATUS_REPARSE)
1920 if( pDirEntry != NULL)
1923 lCount = InterlockedDecrement( &pDirEntry->OpenReferenceCount);
1925 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1926 AFS_TRACE_LEVEL_VERBOSE,
1927 "AFSLocateNameEntry Decrement6 count on %wZ DE %p Ccb %p Cnt %d\n",
1928 &pDirEntry->NameInformation.FileName,
1933 else if( pParentDirEntry != NULL)
1936 lCount = InterlockedDecrement( &pParentDirEntry->OpenReferenceCount);
1938 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1939 AFS_TRACE_LEVEL_VERBOSE,
1940 "AFSLocateNameEntry Decrement7 count on %wZ DE %p Ccb %p Cnt %d\n",
1941 &pParentDirEntry->NameInformation.FileName,
1947 if( bReleaseCurrentVolume)
1950 ASSERT( pCurrentVolume->VolumeReferenceCount > 1);
1952 lCount = InterlockedDecrement( &pCurrentVolume->VolumeReferenceCount);
1954 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
1955 AFS_TRACE_LEVEL_VERBOSE,
1956 "AFSLocateNameEntry Decrement3 count on volume %08lX Cnt %d\n",
1961 if( RootPathName->Buffer != uniFullPathName.Buffer)
1964 AFSExFreePoolWithTag( uniFullPathName.Buffer, 0);
1970 if( *ParentDirectoryCB != NULL)
1973 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1974 AFS_TRACE_LEVEL_VERBOSE,
1975 "AFSLocateNameEntry Count on Parent %wZ DE %p Ccb %p Cnt %d\n",
1976 &(*ParentDirectoryCB)->NameInformation.FileName,
1979 (*ParentDirectoryCB)->OpenReferenceCount);
1982 if( *DirectoryCB != NULL)
1985 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1986 AFS_TRACE_LEVEL_VERBOSE,
1987 "AFSLocateNameEntry Count on %wZ DE %p Ccb %p Cnt %d\n",
1988 &(*DirectoryCB)->NameInformation.FileName,
1991 (*DirectoryCB)->OpenReferenceCount);
1995 if( bSubstituteName &&
1996 uniSearchName.Buffer != NULL)
1999 AFSExFreePoolWithTag( uniSearchName.Buffer, 0);
2007 AFSCreateDirEntry( IN GUID *AuthGroup,
2008 IN AFSObjectInfoCB *ParentObjectInfo,
2009 IN AFSDirectoryCB *ParentDirCB,
2010 IN PUNICODE_STRING FileName,
2011 IN PUNICODE_STRING ComponentName,
2012 IN ULONG Attributes,
2013 IN OUT AFSDirectoryCB **DirEntry)
2016 NTSTATUS ntStatus = STATUS_SUCCESS;
2017 AFSDirectoryCB *pDirNode = NULL, *pExistingDirNode = NULL;
2018 UNICODE_STRING uniShortName;
2019 LARGE_INTEGER liFileSize = {0,0};
2025 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2026 AFS_TRACE_LEVEL_VERBOSE_2,
2027 "AFSCreateDirEntry Creating dir entry in parent %wZ FID %08lX-%08lX-%08lX-%08lX Component %wZ Attribs %08lX\n",
2028 &ParentDirCB->NameInformation.FileName,
2029 ParentObjectInfo->FileId.Cell,
2030 ParentObjectInfo->FileId.Volume,
2031 ParentObjectInfo->FileId.Vnode,
2032 ParentObjectInfo->FileId.Unique,
2037 // OK, before inserting the node into the parent tree, issue
2038 // the request to the service for node creation
2039 // We will need to drop the lock on the parent node since the create
2040 // could cause a callback into the file system to invalidate it's cache
2043 ntStatus = AFSNotifyFileCreate( AuthGroup,
2051 // If the returned status is STATUS_REPARSE then the entry exists
2052 // and we raced, get out.
2054 if( ntStatus == STATUS_REPARSE)
2057 *DirEntry = pDirNode;
2059 try_return( ntStatus = STATUS_SUCCESS);
2062 if( !NT_SUCCESS( ntStatus))
2065 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2066 AFS_TRACE_LEVEL_ERROR,
2067 "AFSCreateDirEntry Failed to create dir entry in parent %wZ FID %08lX-%08lX-%08lX-%08lX Component %wZ Attribs %08lX Status %08lX\n",
2068 &ParentDirCB->NameInformation.FileName,
2069 ParentObjectInfo->FileId.Cell,
2070 ParentObjectInfo->FileId.Volume,
2071 ParentObjectInfo->FileId.Vnode,
2072 ParentObjectInfo->FileId.Unique,
2077 try_return( ntStatus);
2080 AFSAcquireExcl( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2084 // Before attempting to insert the new entry, check if we need to validate the parent
2087 if( BooleanFlagOn( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY))
2090 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2091 AFS_TRACE_LEVEL_VERBOSE,
2092 "AFSCreateDirEntry Verifying parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
2093 &ParentDirCB->NameInformation.FileName,
2094 ParentObjectInfo->FileId.Cell,
2095 ParentObjectInfo->FileId.Volume,
2096 ParentObjectInfo->FileId.Vnode,
2097 ParentObjectInfo->FileId.Unique);
2099 ntStatus = AFSVerifyEntry( AuthGroup,
2102 if( !NT_SUCCESS( ntStatus))
2105 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2106 AFS_TRACE_LEVEL_ERROR,
2107 "AFSCreateDirEntry Failed to verify parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
2108 &ParentDirCB->NameInformation.FileName,
2109 ParentObjectInfo->FileId.Cell,
2110 ParentObjectInfo->FileId.Volume,
2111 ParentObjectInfo->FileId.Vnode,
2112 ParentObjectInfo->FileId.Unique,
2115 AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2117 try_return( ntStatus);
2122 // Check for the entry in the event we raced with some other thread
2125 AFSLocateCaseSensitiveDirEntry( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
2126 (ULONG)pDirNode->CaseSensitiveTreeEntry.HashIndex,
2129 if( pExistingDirNode != NULL)
2131 if (AFSIsEqualFID( &pDirNode->ObjectInformation->FileId,
2132 &pExistingDirNode->ObjectInformation->FileId))
2135 AFSDeleteDirEntry( ParentObjectInfo,
2138 lCount = InterlockedIncrement( &pExistingDirNode->OpenReferenceCount);
2140 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
2141 AFS_TRACE_LEVEL_VERBOSE,
2142 "AFSCreateDirEntry Increment count on %wZ DE %p Cnt %d\n",
2143 &pExistingDirNode->NameInformation.FileName,
2147 *DirEntry = pExistingDirNode;
2149 AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2151 try_return( ntStatus = STATUS_SUCCESS);
2157 // Need to tear down this entry and rebuild it below
2160 if( pExistingDirNode->OpenReferenceCount == 0)
2163 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2164 AFS_TRACE_LEVEL_VERBOSE,
2165 "AFSCreateDirEntry Different FIDs - Deleting DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
2167 &pExistingDirNode->NameInformation.FileName,
2168 pExistingDirNode->ObjectInformation->FileId.Cell,
2169 pExistingDirNode->ObjectInformation->FileId.Volume,
2170 pExistingDirNode->ObjectInformation->FileId.Vnode,
2171 pExistingDirNode->ObjectInformation->FileId.Unique,
2172 pDirNode->ObjectInformation->FileId.Cell,
2173 pDirNode->ObjectInformation->FileId.Volume,
2174 pDirNode->ObjectInformation->FileId.Vnode,
2175 pDirNode->ObjectInformation->FileId.Unique);
2177 AFSDeleteDirEntry( ParentObjectInfo,
2183 SetFlag( pExistingDirNode->Flags, AFS_DIR_ENTRY_DELETED);
2185 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2186 AFS_TRACE_LEVEL_VERBOSE,
2187 "AFSCreateDirEntry Different FIDs - Removing DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
2189 &pExistingDirNode->NameInformation.FileName,
2190 pExistingDirNode->ObjectInformation->FileId.Cell,
2191 pExistingDirNode->ObjectInformation->FileId.Volume,
2192 pExistingDirNode->ObjectInformation->FileId.Vnode,
2193 pExistingDirNode->ObjectInformation->FileId.Unique,
2194 pDirNode->ObjectInformation->FileId.Cell,
2195 pDirNode->ObjectInformation->FileId.Volume,
2196 pDirNode->ObjectInformation->FileId.Vnode,
2197 pDirNode->ObjectInformation->FileId.Unique);
2199 AFSRemoveNameEntry( ParentObjectInfo,
2206 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2207 AFS_TRACE_LEVEL_VERBOSE_2,
2208 "AFSCreateDirEntry Inserting dir entry in parent %wZ FID %08lX-%08lX-%08lX-%08lX Component %wZ\n",
2209 &ParentDirCB->NameInformation.FileName,
2210 ParentObjectInfo->FileId.Cell,
2211 ParentObjectInfo->FileId.Volume,
2212 ParentObjectInfo->FileId.Vnode,
2213 ParentObjectInfo->FileId.Unique,
2217 // Insert the directory node
2220 AFSInsertDirectoryNode( ParentObjectInfo,
2224 lCount = InterlockedIncrement( &pDirNode->OpenReferenceCount);
2226 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
2227 AFS_TRACE_LEVEL_VERBOSE,
2228 "AFSCreateDirEntry Increment2 count on %wZ DE %p Cnt %d\n",
2229 &pDirNode->NameInformation.FileName,
2234 // Pass back the dir entry
2237 *DirEntry = pDirNode;
2239 AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2250 AFSInsertDirectoryNode( IN AFSObjectInfoCB *ParentObjectInfo,
2251 IN AFSDirectoryCB *DirEntry,
2252 IN BOOLEAN InsertInEnumList)
2260 ASSERT( ExIsResourceAcquiredExclusiveLite( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock));
2263 // Insert the node into the directory node tree
2266 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2267 AFS_TRACE_LEVEL_VERBOSE,
2268 "AFSInsertDirectoryNode Insert DE %p for %wZ Clearing NOT_IN flag\n",
2270 &DirEntry->NameInformation.FileName);
2272 ClearFlag( DirEntry->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE);
2274 if( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead == NULL)
2277 ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead = DirEntry;
2279 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2280 AFS_TRACE_LEVEL_VERBOSE,
2281 "AFSInsertDirectoryNode Insert DE %p to head of case sensitive tree for %wZ\n",
2283 &DirEntry->NameInformation.FileName);
2288 AFSInsertCaseSensitiveDirEntry( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
2291 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2292 AFS_TRACE_LEVEL_VERBOSE,
2293 "AFSInsertDirectoryNode Insert DE %p to case sensitive tree for %wZ\n",
2295 &DirEntry->NameInformation.FileName);
2298 if( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead == NULL)
2301 ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead = DirEntry;
2303 SetFlag( DirEntry->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD);
2305 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2306 AFS_TRACE_LEVEL_VERBOSE,
2307 "AFSInsertDirectoryNode Insert DE %p to head of case insensitive tree for %wZ\n",
2309 &DirEntry->NameInformation.FileName);
2314 AFSInsertCaseInsensitiveDirEntry( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
2317 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2318 AFS_TRACE_LEVEL_VERBOSE,
2319 "AFSInsertDirectoryNode Insert DE %p to case insensitive tree for %wZ\n",
2321 &DirEntry->NameInformation.FileName);
2325 // Into the shortname tree
2328 if( DirEntry->Type.Data.ShortNameTreeEntry.HashIndex != 0)
2331 if( ParentObjectInfo->Specific.Directory.ShortNameTree == NULL)
2334 ParentObjectInfo->Specific.Directory.ShortNameTree = DirEntry;
2336 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2337 AFS_TRACE_LEVEL_VERBOSE,
2338 "AFSInsertDirectoryNode Insert DE %p to head of shortname tree for %wZ\n",
2340 &DirEntry->NameInformation.FileName);
2342 SetFlag( DirEntry->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
2347 if( !NT_SUCCESS( AFSInsertShortNameDirEntry( ParentObjectInfo->Specific.Directory.ShortNameTree,
2350 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2351 AFS_TRACE_LEVEL_VERBOSE,
2352 "AFSInsertDirectoryNode Failed to insert DE %p to shortname tree for %wZ\n",
2354 &DirEntry->NameInformation.FileName);
2358 SetFlag( DirEntry->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
2360 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2361 AFS_TRACE_LEVEL_VERBOSE,
2362 "AFSInsertDirectoryNode Insert DE %p to shortname tree for %wZ\n",
2364 &DirEntry->NameInformation.FileName);
2369 if( InsertInEnumList)
2373 // And insert the node into the directory list
2376 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2377 AFS_TRACE_LEVEL_VERBOSE,
2378 "AFSInsertDirectoryNode Inserting entry %08lX %wZ FID %08lX-%08lX-%08lX-%08lX\n",
2380 &DirEntry->NameInformation.FileName,
2381 DirEntry->ObjectInformation->FileId.Cell,
2382 DirEntry->ObjectInformation->FileId.Volume,
2383 DirEntry->ObjectInformation->FileId.Vnode,
2384 DirEntry->ObjectInformation->FileId.Unique);
2386 if( ParentObjectInfo->Specific.Directory.DirectoryNodeListHead == NULL)
2389 ParentObjectInfo->Specific.Directory.DirectoryNodeListHead = DirEntry;
2394 ParentObjectInfo->Specific.Directory.DirectoryNodeListTail->ListEntry.fLink = (void *)DirEntry;
2396 DirEntry->ListEntry.bLink = (void *)ParentObjectInfo->Specific.Directory.DirectoryNodeListTail;
2399 ParentObjectInfo->Specific.Directory.DirectoryNodeListTail = DirEntry;
2401 SetFlag( DirEntry->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
2403 lCount = InterlockedIncrement( &ParentObjectInfo->Specific.Directory.DirectoryNodeCount);
2405 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
2406 AFS_TRACE_LEVEL_VERBOSE,
2407 "AFSInsertDirectoryNode Adding entry %wZ Inc Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
2408 &DirEntry->NameInformation.FileName,
2410 ParentObjectInfo->FileId.Cell,
2411 ParentObjectInfo->FileId.Volume,
2412 ParentObjectInfo->FileId.Vnode,
2413 ParentObjectInfo->FileId.Unique);
2421 AFSDeleteDirEntry( IN AFSObjectInfoCB *ParentObjectInfo,
2422 IN AFSDirectoryCB *DirEntry)
2425 NTSTATUS ntStatus = STATUS_SUCCESS;
2431 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2432 AFS_TRACE_LEVEL_VERBOSE,
2433 "AFSDeleteDirEntry Deleting dir entry in parent %08lX Entry %08lX %wZ FID %08lX-%08lX-%08lX-%08lX\n",
2436 &DirEntry->NameInformation.FileName,
2437 DirEntry->ObjectInformation->FileId.Cell,
2438 DirEntry->ObjectInformation->FileId.Volume,
2439 DirEntry->ObjectInformation->FileId.Vnode,
2440 DirEntry->ObjectInformation->FileId.Unique);
2442 AFSRemoveDirNodeFromParent( ParentObjectInfo,
2447 // Free up the name buffer if it was reallocated
2450 if( BooleanFlagOn( DirEntry->Flags, AFS_DIR_RELEASE_NAME_BUFFER))
2453 AFSExFreePoolWithTag( DirEntry->NameInformation.FileName.Buffer, 0);
2456 if( BooleanFlagOn( DirEntry->Flags, AFS_DIR_RELEASE_TARGET_NAME_BUFFER))
2459 AFSExFreePoolWithTag( DirEntry->NameInformation.TargetName.Buffer, 0);
2463 // Dereference the object for this dir entry
2466 ASSERT( DirEntry->ObjectInformation->ObjectReferenceCount > 0);
2468 lCount = AFSObjectInfoDecrement( DirEntry->ObjectInformation);
2472 SetFlag( DirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_DELETED);
2475 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
2476 AFS_TRACE_LEVEL_VERBOSE,
2477 "AFSDeleteDirEntry Decrement count on object %08lX Cnt %d\n",
2478 DirEntry->ObjectInformation,
2481 ExDeleteResourceLite( &DirEntry->NonPaged->Lock);
2483 AFSExFreePoolWithTag( DirEntry->NonPaged, AFS_DIR_ENTRY_NP_TAG);
2486 // Free up the dir entry
2489 AFSExFreePoolWithTag( DirEntry, AFS_DIR_ENTRY_TAG);
2496 AFSRemoveDirNodeFromParent( IN AFSObjectInfoCB *ParentObjectInfo,
2497 IN AFSDirectoryCB *DirEntry,
2498 IN BOOLEAN RemoveFromEnumList)
2501 NTSTATUS ntStatus = STATUS_SUCCESS;
2508 ASSERT( ExIsResourceAcquiredExclusiveLite( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock));
2510 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2511 AFS_TRACE_LEVEL_VERBOSE,
2512 "AFSRemoveDirNodeFromParent Removing DirEntry %08lX %wZ FID %08lX-%08lX-%08lX-%08lX from Parent %08lX\n",
2514 &DirEntry->NameInformation.FileName,
2515 DirEntry->ObjectInformation->FileId.Cell,
2516 DirEntry->ObjectInformation->FileId.Volume,
2517 DirEntry->ObjectInformation->FileId.Vnode,
2518 DirEntry->ObjectInformation->FileId.Unique,
2521 if( !BooleanFlagOn( DirEntry->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE))
2524 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2525 AFS_TRACE_LEVEL_VERBOSE,
2526 "AFSRemoveDirNodeFromParent Removing DirEntry %08lX name %wZ\n",
2528 &DirEntry->NameInformation.FileName);
2530 AFSRemoveNameEntry( ParentObjectInfo,
2536 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2537 AFS_TRACE_LEVEL_VERBOSE,
2538 "AFSRemoveDirNodeFromParent DE %p for %wZ NOT removing entry due to flag set\n",
2540 &DirEntry->NameInformation.FileName);
2544 if( RemoveFromEnumList &&
2545 BooleanFlagOn( DirEntry->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST))
2549 // And remove the entry from the enumeration list
2552 if( DirEntry->ListEntry.fLink == NULL)
2555 ParentObjectInfo->Specific.Directory.DirectoryNodeListTail = (AFSDirectoryCB *)DirEntry->ListEntry.bLink;
2560 ((AFSDirectoryCB *)DirEntry->ListEntry.fLink)->ListEntry.bLink = DirEntry->ListEntry.bLink;
2563 if( DirEntry->ListEntry.bLink == NULL)
2566 ParentObjectInfo->Specific.Directory.DirectoryNodeListHead = (AFSDirectoryCB *)DirEntry->ListEntry.fLink;
2571 ((AFSDirectoryCB *)DirEntry->ListEntry.bLink)->ListEntry.fLink = DirEntry->ListEntry.fLink;
2574 ASSERT( ParentObjectInfo->Specific.Directory.DirectoryNodeCount > 0);
2576 lCount = InterlockedDecrement( &ParentObjectInfo->Specific.Directory.DirectoryNodeCount);
2578 ClearFlag( DirEntry->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
2580 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
2581 AFS_TRACE_LEVEL_VERBOSE,
2582 "AFSRemoveDirNodeFromParent Removing entry %wZ Dec Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
2583 &DirEntry->NameInformation.FileName,
2585 ParentObjectInfo->FileId.Cell,
2586 ParentObjectInfo->FileId.Volume,
2587 ParentObjectInfo->FileId.Vnode,
2588 ParentObjectInfo->FileId.Unique);
2590 DirEntry->ListEntry.fLink = NULL;
2591 DirEntry->ListEntry.bLink = NULL;
2599 AFSFixupTargetName( IN OUT PUNICODE_STRING FileName,
2600 IN OUT PUNICODE_STRING TargetFileName)
2603 NTSTATUS ntStatus = STATUS_SUCCESS;
2604 UNICODE_STRING uniFileName;
2610 // We will process backwards from the end of the name looking
2611 // for the first \ we encounter
2614 uniFileName.Length = FileName->Length;
2615 uniFileName.MaximumLength = FileName->MaximumLength;
2617 uniFileName.Buffer = FileName->Buffer;
2622 if( uniFileName.Buffer[ (uniFileName.Length/sizeof( WCHAR)) - 1] == L'\\')
2626 // Subtract one more character off of the filename if it is not the root
2629 if( uniFileName.Length > sizeof( WCHAR))
2632 uniFileName.Length -= sizeof( WCHAR);
2636 // Now build up the target name
2639 TargetFileName->Length = FileName->Length - uniFileName.Length;
2642 // If we are not on the root then fixup the name
2645 if( uniFileName.Length > sizeof( WCHAR))
2648 TargetFileName->Length -= sizeof( WCHAR);
2650 TargetFileName->Buffer = &uniFileName.Buffer[ (uniFileName.Length/sizeof( WCHAR)) + 1];
2655 TargetFileName->Buffer = &uniFileName.Buffer[ uniFileName.Length/sizeof( WCHAR)];
2659 // Fixup the passed back filename length
2662 FileName->Length = uniFileName.Length;
2664 TargetFileName->MaximumLength = TargetFileName->Length;
2669 uniFileName.Length -= sizeof( WCHAR);
2677 AFSParseName( IN PIRP Irp,
2679 OUT PUNICODE_STRING FileName,
2680 OUT PUNICODE_STRING ParsedFileName,
2681 OUT PUNICODE_STRING RootFileName,
2682 OUT ULONG *ParseFlags,
2683 OUT AFSVolumeCB **VolumeCB,
2684 OUT AFSDirectoryCB **ParentDirectoryCB,
2685 OUT AFSNameArrayHdr **NameArray)
2688 NTSTATUS ntStatus = STATUS_SUCCESS;
2689 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2690 AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
2691 UNICODE_STRING uniFullName, uniComponentName, uniRemainingPath;
2693 AFSDirectoryCB *pDirEntry = NULL, *pShareDirEntry = NULL, *pTargetDirEntry = NULL;
2694 USHORT usIndex = 0, usDriveIndex = 0;
2695 AFSCcb *pRelatedCcb = NULL;
2696 AFSNameArrayHdr *pNameArray = NULL, *pRelatedNameArray = NULL;
2697 USHORT usComponentIndex = 0;
2698 USHORT usComponentLength = 0;
2699 AFSVolumeCB *pVolumeCB = NULL;
2700 AFSFcb *pRelatedFcb = NULL;
2701 BOOLEAN bReleaseTreeLock = FALSE;
2702 BOOLEAN bIsAllShare = FALSE;
2709 // Indicate we are opening a root ...
2712 *ParseFlags = AFS_PARSE_FLAG_ROOT_ACCESS;
2714 if( pIrpSp->FileObject->RelatedFileObject != NULL)
2717 pRelatedFcb = (AFSFcb *)pIrpSp->FileObject->RelatedFileObject->FsContext;
2719 pRelatedCcb = (AFSCcb *)pIrpSp->FileObject->RelatedFileObject->FsContext2;
2721 pRelatedNameArray = pRelatedCcb->NameArray;
2723 uniFullName = pIrpSp->FileObject->FileName;
2725 ASSERT( pRelatedFcb != NULL);
2728 // No wild cards in the name
2731 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2732 AFS_TRACE_LEVEL_VERBOSE_2,
2733 "AFSParseName (%08lX) Relative open for %wZ FID %08lX-%08lX-%08lX-%08lX component %wZ\n",
2735 &pRelatedCcb->DirectoryCB->NameInformation.FileName,
2736 pRelatedCcb->DirectoryCB->ObjectInformation->FileId.Cell,
2737 pRelatedCcb->DirectoryCB->ObjectInformation->FileId.Volume,
2738 pRelatedCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
2739 pRelatedCcb->DirectoryCB->ObjectInformation->FileId.Unique,
2742 if( FsRtlDoesNameContainWildCards( &uniFullName))
2745 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2746 AFS_TRACE_LEVEL_ERROR,
2747 "AFSParseName (%08lX) Component %wZ contains wild cards\n",
2751 try_return( ntStatus = STATUS_OBJECT_NAME_INVALID);
2754 pVolumeCB = pRelatedFcb->ObjectInformation->VolumeCB;
2756 pDirEntry = pRelatedCcb->DirectoryCB;
2758 *FileName = pIrpSp->FileObject->FileName;
2761 // Grab the root node while checking state
2764 AFSAcquireShared( pVolumeCB->VolumeLock,
2767 if( BooleanFlagOn( pVolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_OBJECT_INVALID) ||
2768 BooleanFlagOn( pVolumeCB->Flags, AFS_VOLUME_FLAGS_OFFLINE))
2772 // The volume has been taken off line so fail the access
2775 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2776 AFS_TRACE_LEVEL_ERROR,
2777 "AFSParseName (%08lX) Volume %08lX:%08lX OFFLINE/INVALID\n",
2779 pVolumeCB->ObjectInformation.FileId.Cell,
2780 pVolumeCB->ObjectInformation.FileId.Volume);
2782 AFSReleaseResource( pVolumeCB->VolumeLock);
2784 try_return( ntStatus = STATUS_DEVICE_NOT_READY);
2787 if( BooleanFlagOn( pVolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_VERIFY))
2790 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2791 AFS_TRACE_LEVEL_VERBOSE,
2792 "AFSParseName (%08lX) Verifying root of volume %08lX:%08lX\n",
2794 pVolumeCB->ObjectInformation.FileId.Cell,
2795 pVolumeCB->ObjectInformation.FileId.Volume);
2797 ntStatus = AFSVerifyVolume( (ULONGLONG)PsGetCurrentProcessId(),
2800 if( !NT_SUCCESS( ntStatus))
2803 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2804 AFS_TRACE_LEVEL_ERROR,
2805 "AFSParseName (%08lX) Failed verification of root Status %08lX\n",
2809 AFSReleaseResource( pVolumeCB->VolumeLock);
2811 try_return( ntStatus);
2815 AFSReleaseResource( pVolumeCB->VolumeLock);
2817 if( BooleanFlagOn( pDirEntry->ObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY))
2820 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2821 AFS_TRACE_LEVEL_VERBOSE,
2822 "AFSParseName (%08lX) Verifying parent %wZ FID %08lX-%08lX-%08lX-%08lX\n",
2824 &pDirEntry->NameInformation.FileName,
2825 pDirEntry->ObjectInformation->FileId.Cell,
2826 pDirEntry->ObjectInformation->FileId.Volume,
2827 pDirEntry->ObjectInformation->FileId.Vnode,
2828 pDirEntry->ObjectInformation->FileId.Unique);
2831 // Directory TreeLock should be exclusively held
2834 AFSAcquireExcl( pDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
2837 ntStatus = AFSVerifyEntry( AuthGroup,
2840 AFSReleaseResource( pDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
2842 if( !NT_SUCCESS( ntStatus))
2845 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2846 AFS_TRACE_LEVEL_VERBOSE,
2847 "AFSParseName (%08lX) Failed verification of parent %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
2849 &pDirEntry->NameInformation.FileName,
2850 pDirEntry->ObjectInformation->FileId.Cell,
2851 pDirEntry->ObjectInformation->FileId.Volume,
2852 pDirEntry->ObjectInformation->FileId.Vnode,
2853 pDirEntry->ObjectInformation->FileId.Unique,
2856 try_return( ntStatus);
2861 // Create our full path name buffer
2864 uniFullName.MaximumLength = pRelatedCcb->FullFileName.Length +
2866 pIrpSp->FileObject->FileName.Length +
2869 uniFullName.Length = 0;
2871 uniFullName.Buffer = (WCHAR *)AFSExAllocatePoolWithTag( PagedPool,
2872 uniFullName.MaximumLength,
2873 AFS_NAME_BUFFER_THREE_TAG);
2875 if( uniFullName.Buffer == NULL)
2878 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2879 AFS_TRACE_LEVEL_ERROR,
2880 "AFSParseName (%08lX) Failed to allocate full name buffer\n",
2883 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2886 RtlZeroMemory( uniFullName.Buffer,
2887 uniFullName.MaximumLength);
2889 RtlCopyMemory( uniFullName.Buffer,
2890 pRelatedCcb->FullFileName.Buffer,
2891 pRelatedCcb->FullFileName.Length);
2893 uniFullName.Length = pRelatedCcb->FullFileName.Length;
2895 usComponentIndex = (USHORT)(uniFullName.Length/sizeof( WCHAR));
2897 usComponentLength = pIrpSp->FileObject->FileName.Length;
2899 if( uniFullName.Buffer[ (uniFullName.Length/sizeof( WCHAR)) - 1] != L'\\' &&
2900 pIrpSp->FileObject->FileName.Length > 0 &&
2901 pIrpSp->FileObject->FileName.Buffer[ 0] != L'\\' &&
2902 pIrpSp->FileObject->FileName.Buffer[ 0] != L':')
2905 uniFullName.Buffer[ (uniFullName.Length/sizeof( WCHAR))] = L'\\';
2907 uniFullName.Length += sizeof( WCHAR);
2909 usComponentLength += sizeof( WCHAR);
2912 if( pIrpSp->FileObject->FileName.Length > 0)
2915 RtlCopyMemory( &uniFullName.Buffer[ uniFullName.Length/sizeof( WCHAR)],
2916 pIrpSp->FileObject->FileName.Buffer,
2917 pIr
\epSp->FileObject->FileName.Length);
2919 uniFullName.Length += pIrpSp->FileObject->FileName.Length;
2922 *RootFileName = uniFullName;
2925 // We populate up to the current parent
2928 if( pRelatedNameArray == NULL)
2932 // Init and populate our name array
2935 pNameArray = AFSInitNameArray( NULL,
2938 if( pNameArray == NULL)
2941 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2942 AFS_TRACE_LEVEL_VERBOSE,
2943 "AFSParseName (%08lX) Failed to initialize name array\n",
2946 AFSExFreePoolWithTag( uniFullName.Buffer, 0);
2948 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2951 ntStatus = AFSPopulateNameArray( pNameArray,
2953 pRelatedCcb->DirectoryCB);
2959 // Init and populate our name array
2962 pNameArray = AFSInitNameArray( NULL,
2963 pRelatedNameArray->MaxElementCount);
2965 if( pNameArray == NULL)
2968 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2969 AFS_TRACE_LEVEL_VERBOSE,
2970 "AFSParseName (%08lX) Failed to initialize name array\n",
2973 AFSExFreePoolWithTag( uniFullName.Buffer, 0);
2975 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2978 ntStatus = AFSPopulateNameArrayFromRelatedArray( pNameArray,
2980 pRelatedCcb->DirectoryCB);
2983 if( !NT_SUCCESS( ntStatus))
2986 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2987 AFS_TRACE_LEVEL_VERBOSE,
2988 "AFSParseName (%08lX) Failed to populate name array\n",
2991 AFSExFreePoolWithTag( uniFullName.Buffer, 0);
2993 try_return( ntStatus);
2996 ParsedFileName->Length = usComponentLength;
2997 ParsedFileName->MaximumLength = uniFullName.MaximumLength;
2999 ParsedFileName->Buffer = &uniFullName.Buffer[ usComponentIndex];
3002 // Indicate to caller that RootFileName must be freed
3005 SetFlag( *ParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER);
3007 *NameArray = pNameArray;
3009 *VolumeCB = pVolumeCB;
3012 // Increment our volume reference count
3015 lCount = InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
3017 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
3018 AFS_TRACE_LEVEL_VERBOSE,
3019 "AFSParseName Increment count on volume %08lX Cnt %d\n",
3023 *ParentDirectoryCB = pDirEntry;
3025 lCount = InterlockedIncrement( &pDirEntry->OpenReferenceCount);
3027 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3028 AFS_TRACE_LEVEL_VERBOSE,
3029 "AFSParseName Increment1 count on %wZ DE %p Ccb %p Cnt %d\n",
3030 &pDirEntry->NameInformation.FileName,
3035 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3036 AFS_TRACE_LEVEL_VERBOSE_2,
3037 "AFSParseName (%08lX) Returning full name %wZ\n",
3041 try_return( ntStatus);
3045 // No wild cards in the name
3048 uniFullName = pIrpSp->FileObject->FileName;
3050 if( FsRtlDoesNameContainWildCards( &uniFullName) ||
3051 uniFullName.Length < AFSServerName.Length)
3054 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3055 AFS_TRACE_LEVEL_ERROR,
3056 "AFSParseName (%08lX) Name %wZ contains wild cards or too short\n",
3060 try_return( ntStatus = STATUS_OBJECT_NAME_INVALID);
3064 // The name is a fully qualified name. Parse out the server/share names and
3065 // point to the root qualified name
3066 // First thing is to locate the server name
3069 FsRtlDissectName( uniFullName,
3073 uniFullName = uniRemainingPath;
3076 // This component is the server name we are serving
3079 if( RtlCompareUnicodeString( &uniComponentName,
3085 // Drive letter based name?
3088 uniFullName = pIrpSp->FileObject->FileName;
3090 while( usIndex < uniFullName.Length/sizeof( WCHAR))
3093 if( uniFullName.Buffer[ usIndex] == L':')
3096 uniFullName.Buffer = &uniFullName.Buffer[ usIndex + 2];
3098 uniFullName.Length -= (usIndex + 2) * sizeof( WCHAR);
3100 usDriveIndex = usIndex - 1;
3109 // Do we have the right server name now?
3112 FsRtlDissectName( uniFullName,
3116 uniFullName = uniRemainingPath;
3119 // This component is the server name we are serving
3122 if( RtlCompareUnicodeString( &uniComponentName,
3127 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3128 AFS_TRACE_LEVEL_ERROR,
3129 "AFSParseName (%08lX) Name %wZ does not have server name\n",
3131 &pIrpSp->FileObject->FileName);
3133 try_return( ntStatus = STATUS_BAD_NETWORK_NAME);
3137 // Validate this drive letter is actively mapped
3140 if( usDriveIndex > 0 &&
3141 !AFSIsDriveMapped( pIrpSp->FileObject->FileName.Buffer[ usDriveIndex]))
3144 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3145 AFS_TRACE_LEVEL_ERROR,
3146 "AFSParseName (%08lX) Name %wZ contains invalid drive mapping\n",
3148 &pIrpSp->FileObject->FileName);
3150 try_return( ntStatus = STATUS_BAD_NETWORK_NAME);
3154 if( FsRtlDoesNameContainWildCards( &uniFullName))
3157 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3158 AFS_TRACE_LEVEL_ERROR,
3159 "AFSParseName (%08lX) Component %wZ contains wild cards\n",
3163 try_return( ntStatus = STATUS_OBJECT_NAME_INVALID);
3166 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3167 AFS_TRACE_LEVEL_VERBOSE_2,
3168 "AFSParseName (%08lX) Processing full name %wZ\n",
3172 if( uniFullName.Length > 0 &&
3173 uniFullName.Buffer[ (uniFullName.Length/sizeof( WCHAR)) - 1] == L'\\')
3176 uniFullName.Length -= sizeof( WCHAR);
3180 // Be sure we are online and ready to go
3183 AFSAcquireShared( AFSGlobalRoot->VolumeLock,
3186 if( BooleanFlagOn( AFSGlobalRoot->ObjectInformation.Flags, AFS_OBJECT_FLAGS_OBJECT_INVALID) ||
3187 BooleanFlagOn( AFSGlobalRoot->Flags, AFS_VOLUME_FLAGS_OFFLINE))
3191 // The volume has been taken off line so fail the access
3194 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3195 AFS_TRACE_LEVEL_ERROR,
3196 "AFSParseName (%08lX) Volume %08lX:%08lX OFFLINE/INVALID\n",
3198 AFSGlobalRoot->ObjectInformation.FileId.Cell,
3199 AFSGlobalRoot->ObjectInformation.FileId.Volume);
3201 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3203 try_return( ntStatus = STATUS_DEVICE_NOT_READY);
3206 if( BooleanFlagOn( AFSGlobalRoot->ObjectInformation.Flags, AFS_OBJECT_FLAGS_VERIFY))
3209 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3210 AFS_TRACE_LEVEL_VERBOSE,
3211 "AFSParseName (%08lX) Verifying root of volume %08lX:%08lX\n",
3213 AFSGlobalRoot->ObjectInformation.FileId.Cell,
3214 AFSGlobalRoot->ObjectInformation.FileId.Volume);
3216 ntStatus = AFSVerifyVolume( (ULONGLONG)PsGetCurrentProcessId(),
3219 if( !NT_SUCCESS( ntStatus))
3222 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3223 AFS_TRACE_LEVEL_ERROR,
3224 "AFSParseName (%08lX) Failed verification of root Status %08lX\n",
3228 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3230 try_return( ntStatus);
3234 AFSReleaseResource( AFSGlobalRoot->VolumeLock);
3236 if( !BooleanFlagOn( AFSGlobalRoot->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
3239 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3240 AFS_TRACE_LEVEL_VERBOSE,
3241 "AFSParseName (%08lX) Enumerating global root of volume %08lX:%08lX\n",
3243 AFSGlobalRoot->ObjectInformation.FileId.Cell,
3244 AFSGlobalRoot->ObjectInformation.FileId.Volume);
3246 ntStatus = AFSEnumerateGlobalRoot( AuthGroup);
3248 if( !NT_SUCCESS( ntStatus))
3251 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3252 AFS_TRACE_LEVEL_ERROR,
3253 "AFSParseName (%08lX) Failed enumeraiton of root Status %08lX\n",
3257 try_return( ntStatus);
3262 // Check for the \\Server access and return it as though it where \\Server\Globalroot
3265 if( uniRemainingPath.Buffer == NULL ||
3266 ( uniRemainingPath.Length == sizeof( WCHAR) &&
3267 uniRemainingPath.Buffer[ 0] == L'\\'))
3270 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3271 AFS_TRACE_LEVEL_VERBOSE_2,
3272 "AFSParseName (%08lX) Returning global root access\n",
3275 lCount = InterlockedIncrement( &AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
3277 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3278 AFS_TRACE_LEVEL_VERBOSE,
3279 "AFSParseName Increment2 count on %wZ DE %p Ccb %p Cnt %d\n",
3280 &AFSGlobalRoot->DirectoryCB->NameInformation.FileName,
3281 AFSGlobalRoot->DirectoryCB,
3287 FileName->Length = 0;
3288 FileName->MaximumLength = 0;
3289 FileName->Buffer = NULL;
3291 try_return( ntStatus = STATUS_SUCCESS);
3294 *RootFileName = uniFullName;
3297 // Include the starting \ in the root name
3300 if( RootFileName->Buffer[ 0] != L'\\')
3302 RootFileName->Buffer--;
3303 RootFileName->Length += sizeof( WCHAR);
3304 RootFileName->MaximumLength += sizeof( WCHAR);
3308 // Get the 'share' name
3311 FsRtlDissectName( uniFullName,
3315 if( FsRtlDoesNameContainWildCards( &uniFullName))
3318 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3319 AFS_TRACE_LEVEL_ERROR,
3320 "AFSParseName (%08lX) Component %wZ contains wild cards\n",
3324 try_return( ntStatus = STATUS_OBJECT_NAME_INVALID);
3328 // If this is the ALL access then perform some additional processing
3331 if( uniComponentName.Length == 0 ||
3332 RtlCompareUnicodeString( &uniComponentName,
3340 // If there is nothing else then get out
3343 if( uniRemainingPath.Buffer == NULL ||
3344 uniRemainingPath.Length == 0 ||
3345 ( uniRemainingPath.Length == sizeof( WCHAR) &&
3346 uniRemainingPath.Buffer[ 0] == L'\\'))
3349 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3350 AFS_TRACE_LEVEL_VERBOSE_2,
3351 "AFSParseName (%08lX) Returning global root access\n",
3354 lCount = InterlockedIncrement( &AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
3356 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3357 AFS_TRACE_LEVEL_VERBOSE,
3358 "AFSParseName Increment3 count on %wZ DE %p Ccb %p Cnt %d\n",
3359 &AFSGlobalRoot->DirectoryCB->NameInformation.FileName,
3360 AFSGlobalRoot->DirectoryCB,
3366 FileName->Length = 0;
3367 FileName->MaximumLength = 0;
3368 FileName->Buffer = NULL;
3370 try_return( ntStatus = STATUS_SUCCESS);
3374 // Process the name again to strip off the ALL portion
3377 uniFullName = uniRemainingPath;
3379 FsRtlDissectName( uniFullName,
3384 // Check for the PIOCtl name
3387 if( RtlCompareUnicodeString( &uniComponentName,
3392 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3393 AFS_TRACE_LEVEL_VERBOSE_2,
3394 "AFSParseName (%08lX) Returning root PIOCtl access\n",
3397 lCount = InterlockedIncrement( &AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
3399 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3400 AFS_TRACE_LEVEL_VERBOSE,
3401 "AFSParseName Increment4 count on %wZ DE %p Ccb %p Cnt %d\n",
3402 &AFSGlobalRoot->DirectoryCB->NameInformation.FileName,
3403 AFSGlobalRoot->DirectoryCB,
3407 ClearFlag( *ParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS);
3411 *FileName = AFSPIOCtlName;
3413 try_return( ntStatus = STATUS_SUCCESS);
3416 else if( (pDirEntry = AFSGetSpecialShareNameEntry( &uniComponentName,
3417 &uniRemainingPath)) != NULL)
3420 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3421 AFS_TRACE_LEVEL_VERBOSE_2,
3422 "AFSParseName (%08lX) Returning root share name %wZ access\n",
3427 // Add in the full share name to pass back
3430 if( uniRemainingPath.Buffer != NULL)
3434 // This routine strips off the leading slash so add it back in
3437 uniRemainingPath.Buffer--;
3438 uniRemainingPath.Length += sizeof( WCHAR);
3439 uniRemainingPath.MaximumLength += sizeof( WCHAR);
3442 // And the cell name
3445 uniRemainingPath.Buffer -= (uniComponentName.Length/sizeof( WCHAR));
3446 uniRemainingPath.Length += uniComponentName.Length;
3447 uniRemainingPath.MaximumLength += uniComponentName.Length;
3449 uniComponentName = uniRemainingPath;
3454 *FileName = uniComponentName;
3456 *ParentDirectoryCB = pDirEntry;
3458 ClearFlag( *ParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS);
3460 lCount = InterlockedIncrement( &pDirEntry->OpenReferenceCount);
3462 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3463 AFS_TRACE_LEVEL_VERBOSE,
3464 "AFSParseName Increment5 count on %wZ DE %p Ccb %p Cnt %d\n",
3465 &pDirEntry->NameInformation.FileName,
3470 try_return( ntStatus = STATUS_SUCCESS);
3474 // Determine the 'share' we are accessing
3477 ulCRC = AFSGenerateCRC( &uniComponentName,
3480 AFSAcquireShared( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock,
3483 bReleaseTreeLock = TRUE;
3485 AFSLocateCaseSensitiveDirEntry( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
3489 if( pDirEntry == NULL)
3492 ulCRC = AFSGenerateCRC( &uniComponentName,
3495 AFSLocateCaseInsensitiveDirEntry( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
3499 if( pDirEntry == NULL)
3503 // OK, if this component is a valid short name then try
3504 // a lookup in the short name tree
3507 if( !BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_DISABLE_SHORTNAMES) &&
3508 RtlIsNameLegalDOS8Dot3( &uniComponentName,
3513 AFSLocateShortNameDirEntry( AFSGlobalRoot->ObjectInformation.Specific.Directory.ShortNameTree,
3518 if( pDirEntry == NULL)
3522 // Check with the service whether it is a valid cell name
3525 AFSReleaseResource( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
3527 bReleaseTreeLock = FALSE;
3529 ntStatus = AFSCheckCellName( AuthGroup,
3533 if( !NT_SUCCESS( ntStatus))
3537 uniRemainingPath.Length == 0 &&
3538 ntStatus == STATUS_OBJECT_PATH_NOT_FOUND)
3541 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
3544 try_return( ntStatus);
3550 if( bReleaseTreeLock)
3552 AFSReleaseResource( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
3557 // Be sure we are starting from the correct volume
3560 if( pDirEntry->ObjectInformation->VolumeCB != AFSGlobalRoot)
3564 // We dropped the global root in the CheckCellName routine which is the
3565 // only way we can be here
3568 pVolumeCB = pDirEntry->ObjectInformation->VolumeCB;
3571 // Init our name array
3574 pNameArray = AFSInitNameArray( AFSGlobalRoot->DirectoryCB,
3577 if( pNameArray == NULL)
3580 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3581 AFS_TRACE_LEVEL_VERBOSE,
3582 "AFSParseName (%08lX) Failed to initialize name array\n",
3585 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3588 ntStatus = AFSInsertNextElement( pNameArray,
3589 pVolumeCB->DirectoryCB);
3594 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3595 AFS_TRACE_LEVEL_VERBOSE,
3596 "AFSParseName (%08lX) Failed to insert name array element\n",
3599 try_return( ntStatus);
3603 // In this case don't add back in the 'share' name since that is where we are
3604 // starting. Just put the leading slash back in
3607 if( uniRemainingPath.Buffer != NULL)
3610 uniRemainingPath.Buffer--;
3611 uniRemainingPath.Length += sizeof( WCHAR);
3612 uniRemainingPath.MaximumLength += sizeof( WCHAR);
3614 if( uniRemainingPath.Length > sizeof( WCHAR))
3617 ClearFlag( *ParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS);
3621 // Pass back the parent being the root of the volume
3624 *ParentDirectoryCB = pVolumeCB->DirectoryCB;
3630 // Pass back a root slash
3633 uniRemainingPath = uniComponentName;
3635 uniRemainingPath.Buffer--;
3636 uniRemainingPath.Length = sizeof( WCHAR);
3637 uniRemainingPath.MaximumLength = sizeof( WCHAR);
3640 // This is a root open so pass back no parent
3643 *ParentDirectoryCB = NULL;
3649 pVolumeCB = AFSGlobalRoot;
3652 // Init our name array
3655 pNameArray = AFSInitNameArray( AFSGlobalRoot->DirectoryCB,
3657 if( pNameArray == NULL)
3660 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3661 AFS_TRACE_LEVEL_VERBOSE,
3662 "AFSParseName (%08lX) Failed to initialize name array\n",
3665 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3669 // Add back in the 'share' portion of the name since we will parse it out on return
3672 if( uniRemainingPath.Buffer != NULL)
3676 // This routine strips off the leading slash so add it back in
3679 uniRemainingPath.Buffer--;
3680 uniRemainingPath.Length += sizeof( WCHAR);
3681 uniRemainingPath.MaximumLength += sizeof( WCHAR);
3683 if( uniRemainingPath.Length > sizeof( WCHAR))
3686 ClearFlag( *ParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS);
3690 // And the cell name
3693 uniRemainingPath.Buffer -= (uniComponentName.Length/sizeof( WCHAR));
3694 uniRemainingPath.Length += uniComponentName.Length;
3695 uniRemainingPath.MaximumLength += uniComponentName.Length;
3700 uniRemainingPath = uniComponentName;
3704 // And the leading slash again ...
3707 uniRemainingPath.Buffer--;
3708 uniRemainingPath.Length += sizeof( WCHAR);
3709 uniRemainingPath.MaximumLength += sizeof( WCHAR);
3711 lCount = InterlockedIncrement( &pVolumeCB->DirectoryCB->OpenReferenceCount);
3713 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3714 AFS_TRACE_LEVEL_VERBOSE,
3715 "AFSParseName Increment6 count on %wZ DE %p Ccb %p Cnt %d\n",
3716 &pVolumeCB->DirectoryCB->NameInformation.FileName,
3717 pVolumeCB->DirectoryCB,
3719 lCount = pVolumeCB->DirectoryCB->OpenReferenceCount);
3722 // Pass back the parent being the volume root
3725 *ParentDirectoryCB = pVolumeCB->DirectoryCB;
3730 // Return the remaining portion as the file name
3733 *FileName = uniRemainingPath;
3735 *ParsedFileName = uniRemainingPath;
3737 *NameArray = pNameArray;
3739 *VolumeCB = pVolumeCB;
3742 // Increment our reference on the volume
3745 lCount = InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
3747 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
3748 AFS_TRACE_LEVEL_VERBOSE,
3749 "AFSParseName Increment2 count on global volume %08lX Cnt %d\n",
3755 if( NT_SUCCESS( ntStatus))
3758 if( *ParentDirectoryCB != NULL)
3761 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3762 AFS_TRACE_LEVEL_VERBOSE,
3763 "AFSParseName Count on %wZ DE %p Ccb %p Cnt %d\n",
3764 &(*ParentDirectoryCB)->NameInformation.FileName,
3767 (*ParentDirectoryCB)->OpenReferenceCount);
3771 if( *VolumeCB != NULL)
3773 ASSERT( (*VolumeCB)->VolumeReferenceCount > 1);
3776 if( ntStatus != STATUS_SUCCESS)
3779 if( pNameArray != NULL)
3782 AFSFreeNameArray( pNameArray);
3791 AFSCheckCellName( IN GUID *AuthGroup,
3792 IN UNICODE_STRING *CellName,
3793 OUT AFSDirectoryCB **ShareDirEntry)
3796 NTSTATUS ntStatus = STATUS_SUCCESS;
3797 UNICODE_STRING uniName;
3798 AFSDirEnumEntry *pDirEnumEntry = NULL;
3799 AFSDeviceExt *pDevExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
3800 AFSDirHdr *pDirHdr = &AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr;
3801 AFSDirectoryCB *pDirNode = NULL;
3802 UNICODE_STRING uniDirName, uniTargetName;
3803 AFSVolumeCB *pVolumeCB = NULL;
3810 // Look for some default names we will not handle
3813 RtlInitUnicodeString( &uniName,
3816 if( RtlCompareUnicodeString( &uniName,
3821 try_return( ntStatus = STATUS_NO_SUCH_FILE);
3824 RtlInitUnicodeString( &uniName,
3827 if( RtlCompareUnicodeString( &uniName,
3832 try_return( ntStatus = STATUS_NO_SUCH_FILE);
3835 RtlInitUnicodeString( &uniName,
3838 if( RtlCompareUnicodeString( &uniName,
3843 try_return( ntStatus = STATUS_NO_SUCH_FILE);
3846 RtlInitUnicodeString( &uniName,
3849 if( RtlCompareUnicodeString( &uniName,
3854 try_return( ntStatus = STATUS_NO_SUCH_FILE);
3858 // OK, ask the CM about this component name
3861 ntStatus = AFSEvaluateTargetByName( AuthGroup,
3862 &AFSGlobalRoot->ObjectInformation,
3866 if( !NT_SUCCESS( ntStatus))
3869 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3870 AFS_TRACE_LEVEL_WARNING,
3871 "AFSCheckCellName entry %wZ does not exist parent FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
3873 AFSGlobalRoot->ObjectInformation.FileId.Cell,
3874 AFSGlobalRoot->ObjectInformation.FileId.Volume,
3875 AFSGlobalRoot->ObjectInformation.FileId.Vnode,
3876 AFSGlobalRoot->ObjectInformation.FileId.Unique,
3879 try_return( ntStatus);
3883 // OK, we have a dir enum entry back so add it to the root node
3886 uniDirName = *CellName;
3888 uniTargetName.Length = (USHORT)pDirEnumEntry->TargetNameLength;
3889 uniTargetName.MaximumLength = uniTargetName.Length;
3890 uniTargetName.Buffer = (WCHAR *)((char *)pDirEnumEntry + pDirEnumEntry->TargetNameOffset);
3893 // Is this entry a root volume entry?
3896 if( pDirEnumEntry->FileId.Cell != AFSGlobalRoot->ObjectInformation.FileId.Cell ||
3897 pDirEnumEntry->FileId.Volume != AFSGlobalRoot->ObjectInformation.FileId.Volume)
3901 // Build the root volume entry
3904 ntStatus = AFSBuildRootVolume( AuthGroup,
3905 &pDirEnumEntry->FileId,
3908 if( !NT_SUCCESS( ntStatus))
3910 try_return( ntStatus);
3913 *ShareDirEntry = pVolumeCB->DirectoryCB;
3915 lCount = InterlockedIncrement( &pVolumeCB->DirectoryCB->OpenReferenceCount);
3917 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3918 AFS_TRACE_LEVEL_VERBOSE,
3919 "AFSCheckCellName Increment1 count on %wZ DE %p Ccb %p Cnt %d\n",
3920 &pVolumeCB->DirectoryCB->NameInformation.FileName,
3921 pVolumeCB->DirectoryCB,
3925 lCount = InterlockedDecrement( &pVolumeCB->VolumeReferenceCount);
3930 lCount = InterlockedIncrement( &pDirHdr->ContentIndex);
3932 pDirNode = AFSInitDirEntry( &AFSGlobalRoot->ObjectInformation,
3938 if( pDirNode == NULL)
3941 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3945 // Init the short name if we have one
3948 if( pDirEnumEntry->ShortNameLength > 0)
3951 pDirNode->NameInformation.ShortNameLength = pDirEnumEntry->ShortNameLength;
3953 RtlCopyMemory( pDirNode->NameInformation.ShortName,
3954 pDirEnumEntry->ShortName,
3955 pDirNode->NameInformation.ShortNameLength);
3958 AFSAcquireExcl( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock,
3962 // Insert the node into the name tree
3965 ASSERT( ExIsResourceAcquiredExclusiveLite( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock));
3967 if( pDirHdr->CaseSensitiveTreeHead == NULL)
3970 pDirHdr->CaseSensitiveTreeHead = pDirNode;
3975 if( !NT_SUCCESS( AFSInsertCaseSensitiveDirEntry( pDirHdr->CaseSensitiveTreeHead,
3979 AFSDeleteDirEntry( &AFSGlobalRoot->ObjectInformation,
3982 AFSReleaseResource( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
3984 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3988 ClearFlag( pDirNode->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE);
3990 if( pDirHdr->CaseInsensitiveTreeHead == NULL)
3993 pDirHdr->CaseInsensitiveTreeHead = pDirNode;
3995 SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD);
4000 AFSInsertCaseInsensitiveDirEntry( pDirHdr->CaseInsensitiveTreeHead,
4004 if( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListHead == NULL)
4007 AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListHead = pDirNode;
4012 AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListTail->ListEntry.fLink = pDirNode;
4014 pDirNode->ListEntry.bLink = AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListTail;
4017 AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeListTail = pDirNode;
4019 SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
4021 lCount = InterlockedIncrement( &AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeCount);
4023 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
4024 AFS_TRACE_LEVEL_VERBOSE,
4025 "AFSCheckCellName Adding entry %wZ Inc Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
4026 &pDirNode->NameInformation.FileName,
4028 AFSGlobalRoot->ObjectInformation.FileId.Cell,
4029 AFSGlobalRoot->ObjectInformation.FileId.Volume,
4030 AFSGlobalRoot->ObjectInformation.FileId.Vnode,
4031 AFSGlobalRoot->ObjectInformation.FileId.Unique);
4033 lCount = InterlockedIncrement( &pDirNode->OpenReferenceCount);
4035 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
4036 AFS_TRACE_LEVEL_VERBOSE,
4037 "AFSCheckCellName Increment2 count on %wZ DE %p Ccb %p Cnt %d\n",
4038 &pDirNode->NameInformation.FileName,
4043 AFSReleaseResource( AFSGlobalRoot->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
4046 // Pass back the dir node
4049 *ShareDirEntry = pDirNode;
4054 if( pDirEnumEntry != NULL)
4057 AFSExFreePoolWithTag( pDirEnumEntry, AFS_GENERIC_MEMORY_31_TAG);
4065 AFSBuildMountPointTarget( IN GUID *AuthGroup,
4066 IN AFSDirectoryCB *DirectoryCB,
4067 OUT AFSVolumeCB **TargetVolumeCB)
4070 NTSTATUS ntStatus = STATUS_SUCCESS;
4071 AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
4072 AFSDirEnumEntry *pDirEntry = NULL;
4073 AFSDirectoryCB *pDirNode = NULL;
4074 UNICODE_STRING uniDirName, uniTargetName;
4075 ULONGLONG ullIndex = 0;
4076 AFSVolumeCB *pVolumeCB = NULL;
4077 AFSFileID stTargetFileID;
4079 BOOLEAN bReleaseVolumeLock = FALSE;
4085 // Loop on each entry, building the chain until we encounter the final target
4088 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4089 AFS_TRACE_LEVEL_VERBOSE_2,
4090 "AFSBuildMountPointTarget Building target directory for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
4091 &DirectoryCB->NameInformation.FileName,
4092 DirectoryCB->ObjectInformation->FileId.Cell,
4093 DirectoryCB->ObjectInformation->FileId.Volume,
4094 DirectoryCB->ObjectInformation->FileId.Vnode,
4095 DirectoryCB->ObjectInformation->FileId.Unique);
4098 // Do we need to evaluate the node?
4101 //if( DirectoryCB->ObjectInformation->TargetFileId.Vnode == 0 &&
4102 // DirectoryCB->ObjectInformation->TargetFileId.Unique == 0)
4106 // Go evaluate the current target to get the target fid
4109 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4110 AFS_TRACE_LEVEL_VERBOSE_2,
4111 "AFSBuildMountPointTarget Evaluating target %wZ FID %08lX-%08lX-%08lX-%08lX\n",
4112 &DirectoryCB->NameInformation.FileName,
4113 DirectoryCB->ObjectInformation->FileId.Cell,
4114 DirectoryCB->ObjectInformation->FileId.Volume,
4115 DirectoryCB->ObjectInformation->FileId.Vnode,
4116 DirectoryCB->ObjectInformation->FileId.Unique);
4118 ntStatus = AFSEvaluateTargetByID( DirectoryCB->ObjectInformation,
4123 if( !NT_SUCCESS( ntStatus))
4126 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4127 AFS_TRACE_LEVEL_ERROR,
4128 "AFSBuildMountPointTarget Failed to evaluate target %wZ Status %08lX\n",
4129 &DirectoryCB->NameInformation.FileName,
4131 try_return( ntStatus);
4134 if( pDirEntry->TargetFileId.Vnode == 0 &&
4135 pDirEntry->TargetFileId.Unique == 0)
4138 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4139 AFS_TRACE_LEVEL_ERROR,
4140 "AFSBuildMountPointTarget Target %wZ FID %08lX-%08lX-%08lX-%08lX service returned zero FID\n",
4141 &DirectoryCB->NameInformation.FileName,
4142 DirectoryCB->ObjectInformation->FileId.Cell,
4143 DirectoryCB->ObjectInformation->FileId.Volume,
4144 DirectoryCB->ObjectInformation->FileId.Vnode,
4145 DirectoryCB->ObjectInformation->FileId.Unique);
4147 try_return( ntStatus = STATUS_REPARSE_POINT_NOT_RESOLVED);
4150 AFSAcquireExcl( &DirectoryCB->NonPaged->Lock,
4153 ntStatus = AFSUpdateTargetName( &DirectoryCB->NameInformation.TargetName,
4154 &DirectoryCB->Flags,
4155 (WCHAR *)((char *)pDirEntry + pDirEntry->TargetNameOffset),
4156 (USHORT)pDirEntry->TargetNameLength);
4158 if( !NT_SUCCESS( ntStatus))
4161 AFSReleaseResource( &DirectoryCB->NonPaged->Lock);
4163 try_return( ntStatus);
4166 AFSReleaseResource( &DirectoryCB->NonPaged->Lock);
4168 DirectoryCB->ObjectInformation->TargetFileId = pDirEntry->TargetFileId;
4171 stTargetFileID = DirectoryCB->ObjectInformation->TargetFileId;
4174 // Try to locate this FID. First the volume then the
4178 ullIndex = AFSCreateHighIndex( &stTargetFileID);
4180 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
4181 AFS_TRACE_LEVEL_VERBOSE,
4182 "AFSBuildMountPointTarget Acquiring RDR VolumeTreeLock lock %08lX EXCL %08lX\n",
4183 &pDevExt->Specific.RDR.VolumeTreeLock,
4184 PsGetCurrentThread());
4186 AFSAcquireShared( &pDevExt->Specific.RDR.VolumeTreeLock,
4189 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4190 AFS_TRACE_LEVEL_VERBOSE_2,
4191 "AFSBuildMountPointTarget Locating volume for target %I64X\n",
4194 ntStatus = AFSLocateHashEntry( pDevExt->Specific.RDR.VolumeTree.TreeHead,
4196 (AFSBTreeEntry **)&pVolumeCB);
4199 // We can be processing a request for a target that is on a volume
4200 // we have never seen before.
4203 if( pVolumeCB == NULL)
4207 // Locking is held correctly in init routine
4210 AFSReleaseResource( &pDevExt->Specific.RDR.VolumeTreeLock);
4213 // Go init the root of the volume
4216 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4217 AFS_TRACE_LEVEL_VERBOSE_2,
4218 "AFSBuildMountPointTarget Initializing root for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
4219 &DirectoryCB->NameInformation.FileName,
4220 DirectoryCB->ObjectInformation->FileId.Cell,
4221 DirectoryCB->ObjectInformation->FileId.Volume,
4222 DirectoryCB->ObjectInformation->FileId.Vnode,
4223 DirectoryCB->ObjectInformation->FileId.Unique);
4225 ntStatus = AFSInitVolume( AuthGroup,
4229 if( !NT_SUCCESS( ntStatus))
4232 try_return( ntStatus);
4236 // pVolumeCB->VolumeLock held exclusive and
4237 // pVolumeCB->VolumeReferenceCount has been incremented
4238 // pVolumeCB->RootFcb == NULL
4241 bReleaseVolumeLock = TRUE;
4247 // AFSInitVolume returns with a VolumeReferenceCount
4248 // obtain one to match
4251 lCount = InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
4253 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
4254 AFS_TRACE_LEVEL_VERBOSE,
4255 "AFSBuildMountPointTarget Increment count on volume %08lX Cnt %d\n",
4259 AFSReleaseResource( &pDevExt->Specific.RDR.VolumeTreeLock);
4262 if( pVolumeCB->RootFcb == NULL)
4265 if ( bReleaseVolumeLock == FALSE)
4268 AFSAcquireExcl( pVolumeCB->VolumeLock,
4271 bReleaseVolumeLock = TRUE;
4275 // Initialize the root fcb for this volume
4278 ntStatus = AFSInitRootFcb( (ULONGLONG)PsGetCurrentProcessId(),
4281 if( !NT_SUCCESS( ntStatus))
4284 lCount = InterlockedDecrement( &pVolumeCB->VolumeReferenceCount);
4286 AFSReleaseResource( pVolumeCB->VolumeLock);
4288 try_return( ntStatus);
4292 // Drop the lock acquired above
4295 AFSReleaseResource( &pVolumeCB->RootFcb->NPFcb->Resource);
4298 if ( bReleaseVolumeLock == TRUE)
4301 AFSReleaseResource( pVolumeCB->VolumeLock);
4304 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4305 AFS_TRACE_LEVEL_VERBOSE_2,
4306 "AFSBuildMountPointTarget Evaluated target of %wZ FID %08lX-%08lX-%08lX-%08lX as root volume\n",
4307 &pVolumeCB->DirectoryCB->NameInformation.FileName,
4308 pVolumeCB->ObjectInformation.FileId.Cell,
4309 pVolumeCB->ObjectInformation.FileId.Volume,
4310 pVolumeCB->ObjectInformation.FileId.Vnode,
4311 pVolumeCB->ObjectInformation.FileId.Unique);
4313 *TargetVolumeCB = pVolumeCB;
4320 AFSExFreePoolWithTag( pDirEntry, AFS_GENERIC_MEMORY_2_TAG);
4328 AFSBuildRootVolume( IN GUID *AuthGroup,
4329 IN AFSFileID *FileId,
4330 OUT AFSVolumeCB **TargetVolumeCB)
4333 NTSTATUS ntStatus = STATUS_SUCCESS;
4334 AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
4335 AFSDirectoryCB *pDirNode = NULL;
4336 UNICODE_STRING uniDirName, uniTargetName;
4337 ULONGLONG ullIndex = 0;
4338 AFSVolumeCB *pVolumeCB = NULL;
4340 BOOLEAN bReleaseVolumeLock = FALSE;
4345 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4346 AFS_TRACE_LEVEL_VERBOSE_2,
4347 "AFSBuildRootVolume Building target volume for FID %08lX-%08lX-%08lX-%08lX\n",
4353 ullIndex = AFSCreateHighIndex( FileId);
4355 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
4356 AFS_TRACE_LEVEL_VERBOSE,
4357 "AFSBuildRootVolume Acquiring RDR VolumeTreeLock lock %08lX EXCL %08lX\n",
4358 &pDevExt->Specific.RDR.VolumeTreeLock,
4359 PsGetCurrentThread());
4361 AFSAcquireShared( &pDevExt->Specific.RDR.VolumeTreeLock,
4364 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4365 AFS_TRACE_LEVEL_VERBOSE_2,
4366 "AFSBuildRootVolume Locating volume for target %I64X\n",
4369 ntStatus = AFSLocateHashEntry( pDevExt->Specific.RDR.VolumeTree.TreeHead,
4371 (AFSBTreeEntry **)&pVolumeCB);
4374 // We can be processing a request for a target that is on a volume
4375 // we have never seen before.
4378 if( pVolumeCB == NULL)
4382 // Locking is held correctly in init routine
4385 AFSReleaseResource( &pDevExt->Specific.RDR.VolumeTreeLock);
4388 // Go init the root of the volume
4391 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4392 AFS_TRACE_LEVEL_VERBOSE_2,
4393 "AFSBuildRootVolume Initializing root for FID %08lX-%08lX-%08lX-%08lX\n",
4399 ntStatus = AFSInitVolume( AuthGroup,
4403 if( !NT_SUCCESS( ntStatus))
4406 try_return( ntStatus);
4410 // pVolumeCB->VolumeLock is held exclusive
4411 // pVolumeCB->VolumeReferenceCount has been incremented
4412 // pVolumeCB->RootFcb == NULL
4415 bReleaseVolumeLock = TRUE;
4421 // AFSInitVolume returns with a VolumeReferenceCount
4422 // obtain one to match
4425 lCount = InterlockedIncrement( &pVolumeCB->VolumeReferenceCount);
4427 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
4428 AFS_TRACE_LEVEL_VERBOSE,
4429 "AFSBuildRootVolume Increment count on volume %08lX Cnt %d\n",
4433 AFSReleaseResource( &pDevExt->Specific.RDR.VolumeTreeLock);
4437 if( pVolumeCB->RootFcb == NULL)
4440 if ( bReleaseVolumeLock == FALSE)
4443 AFSAcquireExcl( pVolumeCB->VolumeLock,
4446 bReleaseVolumeLock = TRUE;
4450 // Initialize the root fcb for this volume
4453 ntStatus = AFSInitRootFcb( (ULONGLONG)PsGetCurrentProcessId(),
4456 if( !NT_SUCCESS( ntStatus))
4459 lCount = InterlockedDecrement( &pVolumeCB->VolumeReferenceCount);
4461 AFSReleaseResource( pVolumeCB->VolumeLock);
4463 try_return( ntStatus);
4467 // Drop the lock acquired above
4470 AFSReleaseResource( &pVolumeCB->RootFcb->NPFcb->Resource);
4473 if ( bReleaseVolumeLock == TRUE)
4476 AFSReleaseResource( pVolumeCB->VolumeLock);
4479 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4480 AFS_TRACE_LEVEL_VERBOSE_2,
4481 "AFSBuildRootVolume Evaluated target of %wZ FID %08lX-%08lX-%08lX-%08lX as root volume\n",
4482 &pVolumeCB->DirectoryCB->NameInformation.FileName,
4483 pVolumeCB->ObjectInformation.FileId.Cell,
4484 pVolumeCB->ObjectInformation.FileId.Volume,
4485 pVolumeCB->ObjectInformation.FileId.Vnode,
4486 pVolumeCB->ObjectInformation.FileId.Unique);
4488 *TargetVolumeCB = pVolumeCB;
4499 AFSProcessDFSLink( IN AFSDirectoryCB *DirEntry,
4500 IN PFILE_OBJECT FileObject,
4501 IN UNICODE_STRING *RemainingPath,
4505 NTSTATUS ntStatus = STATUS_INVALID_DEVICE_REQUEST;
4506 UNICODE_STRING uniReparseName;
4507 UNICODE_STRING uniMUPDeviceName;
4508 AFSDirEnumEntry *pDirEntry = NULL;
4514 // Build up the name to reparse
4517 RtlInitUnicodeString( &uniMUPDeviceName,
4520 uniReparseName.Length = 0;
4521 uniReparseName.Buffer = NULL;
4524 // Be sure we have a target name
4527 if( DirEntry->NameInformation.TargetName.Length == 0)
4530 ntStatus = AFSEvaluateTargetByID( DirEntry->ObjectInformation,
4535 if( !NT_SUCCESS( ntStatus) ||
4536 pDirEntry->TargetNameLength == 0)
4539 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4540 AFS_TRACE_LEVEL_ERROR,
4541 "AFSProcessDFSLink EvaluateTargetByID failed for Fcb %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
4542 &DirEntry->NameInformation.FileName,
4543 DirEntry->ObjectInformation->FileId.Cell,
4544 DirEntry->ObjectInformation->FileId.Volume,
4545 DirEntry->ObjectInformation->FileId.Vnode,
4546 DirEntry->ObjectInformation->FileId.Unique,
4549 if( NT_SUCCESS( ntStatus))
4552 ntStatus = STATUS_REPARSE_POINT_NOT_RESOLVED;
4555 try_return( ntStatus);
4559 // Update the target name
4562 AFSAcquireExcl( &DirEntry->NonPaged->Lock,
4565 ntStatus = AFSUpdateTargetName( &DirEntry->NameInformation.TargetName,
4567 (WCHAR *)((char *)pDirEntry + pDirEntry->TargetNameOffset),
4568 (USHORT)pDirEntry->TargetNameLength);
4570 if( !NT_SUCCESS( ntStatus))
4573 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4574 AFS_TRACE_LEVEL_ERROR,
4575 "AFSProcessDFSLink UpdateTargetName failed for Fcb %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
4576 &DirEntry->NameInformation.FileName,
4577 DirEntry->ObjectInformation->FileId.Cell,
4578 DirEntry->ObjectInformation->FileId.Volume,
4579 DirEntry->ObjectInformation->FileId.Vnode,
4580 DirEntry->ObjectInformation->FileId.Unique,
4583 AFSReleaseResource( &DirEntry->NonPaged->Lock);
4585 try_return( ntStatus);
4588 AFSConvertToShared( &DirEntry->NonPaged->Lock);
4592 AFSAcquireShared( &DirEntry->NonPaged->Lock,
4596 uniReparseName.MaximumLength = uniMUPDeviceName.Length +
4598 DirEntry->NameInformation.TargetName.Length +
4601 if( RemainingPath != NULL &&
4602 RemainingPath->Length > 0)
4605 uniReparseName.MaximumLength += RemainingPath->Length;
4609 // Allocate the reparse buffer
4612 uniReparseName.Buffer = (WCHAR *)AFSExAllocatePoolWithTag( PagedPool,
4613 uniReparseName.MaximumLength,
4614 AFS_REPARSE_NAME_TAG);
4616 if( uniReparseName.Buffer == NULL)
4619 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4620 AFS_TRACE_LEVEL_ERROR,
4621 "AFSProcessDFSLink uniReparseName.Buffer == NULL Fcb %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
4622 &DirEntry->NameInformation.FileName,
4623 DirEntry->ObjectInformation->FileId.Cell,
4624 DirEntry->ObjectInformation->FileId.Volume,
4625 DirEntry->ObjectInformation->FileId.Vnode,
4626 DirEntry->ObjectInformation->FileId.Unique,
4627 STATUS_INSUFFICIENT_RESOURCES);
4629 AFSReleaseResource( &DirEntry->NonPaged->Lock);
4631 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
4635 // Start building the name
4638 RtlCopyMemory( uniReparseName.Buffer,
4639 uniMUPDeviceName.Buffer,
4640 uniMUPDeviceName.Length);
4642 uniReparseName.Length = uniMUPDeviceName.Length;
4644 if( DirEntry->NameInformation.TargetName.Buffer[ 0] != L'\\')
4647 uniReparseName.Buffer[ uniReparseName.Length/sizeof( WCHAR)] = L'\\';
4649 uniReparseName.Length += sizeof( WCHAR);
4652 RtlCopyMemory( &uniReparseName.Buffer[ uniReparseName.Length/sizeof( WCHAR)],
4653 DirEntry->NameInformation.TargetName.Buffer,
4654 DirEntry->NameInformation.TargetName.Length);
4656 uniReparseName.Length += DirEntry->NameInformation.TargetName.Length;
4658 AFSReleaseResource( &DirEntry->NonPaged->Lock);
4660 if( RemainingPath != NULL &&
4661 RemainingPath->Length > 0)
4664 if( uniReparseName.Buffer[ (uniReparseName.Length/sizeof( WCHAR)) - 1] != L'\\' &&
4665 RemainingPath->Buffer[ 0] != L'\\')
4668 uniReparseName.Buffer[ uniReparseName.Length/sizeof( WCHAR)] = L'\\';
4670 uniReparseName.Length += sizeof( WCHAR);
4673 RtlCopyMemory( &uniReparseName.Buffer[ uniReparseName.Length/sizeof( WCHAR)],
4674 RemainingPath->Buffer,
4675 RemainingPath->Length);
4677 uniReparseName.Length += RemainingPath->Length;
4681 // Update the name in the file object
4684 if( FileObject->FileName.Buffer != NULL)
4687 AFSExFreePoolWithTag( FileObject->FileName.Buffer, 0);
4690 FileObject->FileName = uniReparseName;
4692 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
4693 AFS_TRACE_LEVEL_VERBOSE,
4694 "AFSProcessDFSLink Reparsing access to Fcb %wZ FID %08lX-%08lX-%08lX-%08lX to %wZ\n",
4695 &DirEntry->NameInformation.FileName,
4696 DirEntry->ObjectInformation->FileId.Cell,
4697 DirEntry->ObjectInformation->FileId.Volume,
4698 DirEntry->ObjectInformation->FileId.Vnode,
4699 DirEntry->ObjectInformation->FileId.Unique,
4703 // Return status reparse ...
4706 ntStatus = STATUS_REPARSE;
4713 AFSExFreePoolWithTag( pDirEntry, AFS_GENERIC_MEMORY_2_TAG);