2 * Copyright (c) 2008, 2009, 2010, 2011 Kernel Drivers, LLC.
3 * Copyright (c) 2009, 2010, 2011 Your File System, Inc.
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7 * modification, are permitted provided that the following conditions
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36 // File: AFSCreate.cpp
39 #include "AFSCommon.h"
42 // Function: AFSCreate
46 // This function is the dispatch handler for the IRP_MJ_CREATE requests. It makes the determination to
47 // which interface this request is destined.
51 // A status is returned for the function. The Irp completion processing is handled in the specific
56 AFSCreate( IN PDEVICE_OBJECT LibDeviceObject,
60 NTSTATUS ntStatus = STATUS_SUCCESS;
61 IO_STACK_LOCATION *pIrpSp;
62 FILE_OBJECT *pFileObject = NULL;
67 pIrpSp = IoGetCurrentIrpStackLocation( Irp);
68 pFileObject = pIrpSp->FileObject;
70 if( pFileObject == NULL ||
71 pFileObject->FileName.Buffer == NULL)
74 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
75 AFS_TRACE_LEVEL_VERBOSE,
76 "AFSCreate (%08lX) Processing control device open request\n",
79 ntStatus = AFSControlDeviceCreate( Irp);
81 try_return( ntStatus);
84 if( AFSRDRDeviceObject == NULL)
87 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
88 AFS_TRACE_LEVEL_VERBOSE,
89 "AFSCreate (%08lX) Invalid request to open before library is initialized\n",
92 try_return( ntStatus = STATUS_DEVICE_NOT_READY);
95 ntStatus = AFSCommonCreate( AFSRDRDeviceObject,
102 __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
107 "EXCEPTION - AFSCreate\n");
109 ntStatus = STATUS_ACCESS_DENIED;
111 AFSDumpTraceFilesFnc();
115 // Complete the request
118 AFSCompleteRequest( Irp,
125 AFSCommonCreate( IN PDEVICE_OBJECT DeviceObject,
129 NTSTATUS ntStatus = STATUS_SUCCESS;
130 UNICODE_STRING uniFileName;
131 ULONG ulCreateDisposition = 0;
133 BOOLEAN bNoIntermediateBuffering = FALSE;
134 FILE_OBJECT *pFileObject = NULL;
135 IO_STACK_LOCATION *pIrpSp;
138 AFSDeviceExt *pDeviceExt = NULL;
139 BOOLEAN bOpenTargetDirectory = FALSE, bReleaseVolume = FALSE;
140 PACCESS_MASK pDesiredAccess = NULL;
141 UNICODE_STRING uniComponentName, uniPathName, uniRootFileName, uniParsedFileName;
142 UNICODE_STRING uniSubstitutedPathName;
143 UNICODE_STRING uniRelativeName;
144 AFSNameArrayHdr *pNameArray = NULL;
145 AFSVolumeCB *pVolumeCB = NULL;
146 AFSDirectoryCB *pParentDirectoryCB = NULL, *pDirectoryCB = NULL;
147 ULONG ulParseFlags = 0;
149 ULONG ulNameProcessingFlags = 0;
150 BOOLEAN bOpenedReparsePoint = FALSE;
156 pIrpSp = IoGetCurrentIrpStackLocation( Irp);
157 pDeviceExt = (AFSDeviceExt *)DeviceObject->DeviceExtension;
158 ulCreateDisposition = (pIrpSp->Parameters.Create.Options >> 24) & 0x000000ff;
159 ulOptions = pIrpSp->Parameters.Create.Options;
160 bNoIntermediateBuffering = BooleanFlagOn( ulOptions, FILE_NO_INTERMEDIATE_BUFFERING);
161 bOpenTargetDirectory = BooleanFlagOn( pIrpSp->Flags, SL_OPEN_TARGET_DIRECTORY);
162 pFileObject = pIrpSp->FileObject;
163 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
165 uniFileName.Length = uniFileName.MaximumLength = 0;
166 uniFileName.Buffer = NULL;
168 uniRootFileName.Length = uniRootFileName.MaximumLength = 0;
169 uniRootFileName.Buffer = NULL;
171 uniParsedFileName.Length = uniParsedFileName.MaximumLength = 0;
172 uniParsedFileName.Buffer = NULL;
174 uniSubstitutedPathName.Buffer = NULL;
175 uniSubstitutedPathName.Length = 0;
177 uniRelativeName.Buffer = NULL;
178 uniRelativeName.Length = 0;
180 if( AFSGlobalRoot == NULL)
182 try_return( ntStatus = STATUS_DEVICE_NOT_READY);
185 RtlZeroMemory( &stAuthGroup,
188 AFSRetrieveAuthGroupFnc( (ULONGLONG)PsGetCurrentProcessId(),
189 (ULONGLONG)PsGetCurrentThreadId(),
193 // If we are in shutdown mode then fail the request
196 if( BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
199 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
200 AFS_TRACE_LEVEL_WARNING,
201 "AFSCommonCreate (%08lX) Open request after shutdown\n",
204 try_return( ntStatus = STATUS_TOO_LATE);
207 if( !BooleanFlagOn( AFSGlobalRoot->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
210 ntStatus = AFSEnumerateGlobalRoot( &stAuthGroup);
212 if( !NT_SUCCESS( ntStatus))
215 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
216 AFS_TRACE_LEVEL_ERROR,
217 "AFSCommonCreate Failed to enumerate global root Status %08lX\n",
220 try_return( ntStatus);
225 // Go and parse the name for processing.
226 // If ulParseFlags is returned with AFS_PARSE_FLAG_FREE_FILE_BUFFER set,
227 // then we are responsible for releasing the uniRootFileName.Buffer.
230 ntStatus = AFSParseName( Irp,
240 if( !NT_SUCCESS( ntStatus))
243 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
244 uniFileName.Length > 0 ? AFS_TRACE_LEVEL_ERROR : AFS_TRACE_LEVEL_VERBOSE,
245 "AFSCommonCreate (%08lX) Failed to parse name \"%wZ\" Status %08lX\n",
250 try_return( ntStatus);
254 // Check for STATUS_REPARSE
257 if( ntStatus == STATUS_REPARSE)
261 // Update the information and return
264 Irp->IoStatus.Information = IO_REPARSE;
266 try_return( ntStatus);
270 // If the returned volume cb is NULL then we are dealing with the \\Server\GlobalRoot
274 if( pVolumeCB == NULL)
278 // Remove any leading or trailing slashes
281 if( uniFileName.Length >= sizeof( WCHAR) &&
282 uniFileName.Buffer[ (uniFileName.Length/sizeof( WCHAR)) - 1] == L'\\')
285 uniFileName.Length -= sizeof( WCHAR);
288 if( uniFileName.Length >= sizeof( WCHAR) &&
289 uniFileName.Buffer[ 0] == L'\\')
292 uniFileName.Buffer = &uniFileName.Buffer[ 1];
294 uniFileName.Length -= sizeof( WCHAR);
298 // If there is a remaining portion returned for this request then
299 // check if it is for the PIOCtl interface
302 if( uniFileName.Length > 0)
306 // We don't accept any other opens off of the AFS Root
309 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
312 // If this is an open on "_._AFS_IOCTL_._" then perform handling on it accordingly
315 if( RtlCompareUnicodeString( &AFSPIOCtlName,
320 ntStatus = AFSOpenIOCtlFcb( Irp,
322 AFSGlobalRoot->DirectoryCB,
326 if( !NT_SUCCESS( ntStatus))
329 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
330 AFS_TRACE_LEVEL_ERROR,
331 "AFSCommonCreate Failed to open root IOCtl Fcb Status %08lX\n",
335 else if( pParentDirectoryCB != NULL &&
336 pParentDirectoryCB->ObjectInformation->FileType == AFS_FILE_TYPE_SPECIAL_SHARE_NAME)
339 ntStatus = AFSOpenSpecialShareFcb( Irp,
345 if( !NT_SUCCESS( ntStatus))
348 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
349 AFS_TRACE_LEVEL_ERROR,
350 "AFSCommonCreate Failed to open special share Fcb Status %08lX\n",
355 try_return( ntStatus);
358 ntStatus = AFSOpenAFSRoot( Irp,
362 if( !NT_SUCCESS( ntStatus))
365 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
366 AFS_TRACE_LEVEL_ERROR,
367 "AFSCommonCreate Failed to open root Status %08lX\n",
370 lCount = InterlockedDecrement( &AFSGlobalRoot->DirectoryCB->OpenReferenceCount);
372 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
373 AFS_TRACE_LEVEL_VERBOSE,
374 "AFSCommonCreate Decrement1 count on &wZ DE %p Ccb %p Cnt %d\n",
375 &AFSGlobalRoot->DirectoryCB->NameInformation.FileName,
376 AFSGlobalRoot->DirectoryCB,
381 try_return( ntStatus);
385 // We have a reference on the root volume
388 bReleaseVolume = TRUE;
391 // Attempt to locate the node in the name tree if this is not a target
392 // open and the target is not the root
395 uniComponentName.Length = 0;
396 uniComponentName.Buffer = NULL;
398 if( uniFileName.Length > sizeof( WCHAR) ||
399 uniFileName.Buffer[ 0] != L'\\')
402 if( !AFSValidNameFormat( &uniFileName))
405 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
407 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
408 AFS_TRACE_LEVEL_VERBOSE,
409 "AFSCommonCreate (%08lX) Invalid name %wZ Status %08lX\n",
414 try_return( ntStatus);
418 // Opening a reparse point directly?
421 ulNameProcessingFlags = AFS_LOCATE_FLAGS_SUBSTITUTE_NAME;
423 if( BooleanFlagOn( ulOptions, FILE_OPEN_REPARSE_POINT))
425 ulNameProcessingFlags |= (AFS_LOCATE_FLAGS_NO_MP_TARGET_EVAL |
426 AFS_LOCATE_FLAGS_NO_SL_TARGET_EVAL |
427 AFS_LOCATE_FLAGS_NO_DFS_LINK_EVAL);
430 uniSubstitutedPathName = uniRootFileName;
432 ntStatus = AFSLocateNameEntry( &stAuthGroup,
437 ulNameProcessingFlags,
443 if( !NT_SUCCESS( ntStatus) &&
444 ntStatus != STATUS_OBJECT_NAME_NOT_FOUND)
447 if ( uniSubstitutedPathName.Buffer == uniRootFileName.Buffer)
449 uniSubstitutedPathName.Buffer = NULL;
453 // The routine above released the root while walking the
457 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
458 AFS_TRACE_LEVEL_VERBOSE,
459 "AFSCommonCreate (%08lX) Failed to locate name entry for %wZ Status %08lX\n",
465 // We released any root volume locks in the above on failure
468 bReleaseVolume = FALSE;
470 try_return( ntStatus);
474 // Check for STATUS_REPARSE
477 if( ntStatus == STATUS_REPARSE)
480 uniSubstitutedPathName.Buffer = NULL;
483 // Update the information and return
486 Irp->IoStatus.Information = IO_REPARSE;
489 // We released the volume lock above
492 bReleaseVolume = FALSE;
494 try_return( ntStatus);
498 // If we re-allocated the name, then update our substitute name
501 if( uniSubstitutedPathName.Buffer != uniRootFileName.Buffer)
504 uniSubstitutedPathName = uniRootFileName;
509 uniSubstitutedPathName.Buffer = NULL;
513 // Check for a symlink access
516 if( ntStatus == STATUS_OBJECT_NAME_NOT_FOUND &&
517 pParentDirectoryCB != NULL)
520 UNICODE_STRING uniFinalComponent;
522 uniFinalComponent.Length = 0;
523 uniFinalComponent.MaximumLength = 0;
524 uniFinalComponent.Buffer = NULL;
526 AFSRetrieveFinalComponent( &uniFileName,
529 ntStatus = AFSCheckSymlinkAccess( pParentDirectoryCB,
532 if( !NT_SUCCESS( ntStatus) &&
533 ntStatus != STATUS_OBJECT_NAME_NOT_FOUND)
536 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
537 AFS_TRACE_LEVEL_VERBOSE,
538 "AFSCommonCreate (%08lX) Failing access to symlink %wZ Status %08lX\n",
543 try_return( ntStatus);
549 // If we have no parent then this is a root open, be sure there is a directory entry
553 else if( pParentDirectoryCB == NULL &&
554 pDirectoryCB == NULL)
557 pDirectoryCB = pVolumeCB->DirectoryCB;
560 if( bOpenTargetDirectory)
564 // If we have a directory cb for the entry then dereference it and reference the parent
567 if( pDirectoryCB != NULL)
571 // Perform in this order to prevent thrashing
574 lCount = InterlockedIncrement( &pParentDirectoryCB->OpenReferenceCount);
576 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
577 AFS_TRACE_LEVEL_VERBOSE,
578 "AFSCommonCreate Increment1 count on %wZ DE %p Ccb %p Cnt %d\n",
579 &pParentDirectoryCB->NameInformation.FileName,
585 // Do NOT decrement the reference count on the pDirectoryCB yet.
586 // The BackupEntry below might drop the count to zero leaving
587 // the entry subject to being deleted and we need some of the
588 // contents during later processing
591 AFSBackupEntry( pNameArray);
595 // OK, open the target directory
598 if( uniComponentName.Length == 0)
600 AFSRetrieveFinalComponent( &uniFileName,
604 ntStatus = AFSOpenTargetDirectory( Irp,
611 if( pDirectoryCB != NULL)
614 // It is now safe to drop the Reference Count
616 lCount = InterlockedDecrement( &pDirectoryCB->OpenReferenceCount);
618 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
619 AFS_TRACE_LEVEL_VERBOSE,
620 "AFSCommonCreate Decrement2 count on %wZ DE %p Ccb %p Cnt %d\n",
621 &pDirectoryCB->NameInformation.FileName,
627 if( !NT_SUCCESS( ntStatus))
630 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
631 AFS_TRACE_LEVEL_ERROR,
632 "AFSCommonCreate Failed to open target directory %wZ Status %08lX\n",
633 &pParentDirectoryCB->NameInformation.FileName,
637 // Decrement the reference on the parent
640 lCount = InterlockedDecrement( &pParentDirectoryCB->OpenReferenceCount);
642 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
643 AFS_TRACE_LEVEL_VERBOSE,
644 "AFSCommonCreate Decrement3 count on %wZ DE %p Ccb %p Cnt %d\n",
645 &pParentDirectoryCB->NameInformation.FileName,
651 try_return( ntStatus);
654 if ( BooleanFlagOn( ulOptions, FILE_OPEN_REPARSE_POINT))
657 if( pDirectoryCB == NULL ||
658 !BooleanFlagOn( pDirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_REPARSE_POINT))
660 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
661 AFS_TRACE_LEVEL_VERBOSE,
662 "AFSCommonCreate (%08lX) Reparse open request but attribute not set for %wZ DirCB %p Type %08lX\n",
666 pDirectoryCB ? pDirectoryCB->ObjectInformation->FileType : 0);
670 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
671 AFS_TRACE_LEVEL_VERBOSE,
672 "AFSCommonCreate (%08lX) Opening as reparse point %wZ Type %08lX\n",
675 pDirectoryCB->ObjectInformation->FileType);
677 bOpenedReparsePoint = TRUE;
682 // Based on the options passed in, process the file accordingly.
685 if( ulCreateDisposition == FILE_CREATE ||
686 ( ( ulCreateDisposition == FILE_OPEN_IF ||
687 ulCreateDisposition == FILE_OVERWRITE_IF) &&
688 pDirectoryCB == NULL))
692 BooleanFlagOn( pVolumeCB->VolumeInformation.Characteristics, FILE_READ_ONLY_DEVICE))
695 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
696 AFS_TRACE_LEVEL_VERBOSE,
697 "AFSCommonCreate ReadOnly Device on create Status %08lX\n",
700 InterlockedDecrement( &pParentDirectoryCB->OpenReferenceCount);
702 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
703 AFS_TRACE_LEVEL_VERBOSE,
704 "AFSCommonCreate Decrement13 count on %wZ DE %p Ccb %p Cnt %d\n",
705 &pParentDirectoryCB->NameInformation.FileName,
708 pParentDirectoryCB->OpenReferenceCount);
710 try_return( ntStatus = STATUS_MEDIA_WRITE_PROTECTED);
713 if( uniComponentName.Length == 0 ||
714 pDirectoryCB != NULL)
718 // We traversed the entire path so we found each entry,
719 // fail with collision
722 if( pDirectoryCB != NULL)
725 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
726 AFS_TRACE_LEVEL_VERBOSE,
727 "AFSCommonCreate Object name collision on create of %wZ Status %08lX\n",
728 &pDirectoryCB->NameInformation.FileName,
731 lCount = InterlockedDecrement( &pDirectoryCB->OpenReferenceCount);
733 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
734 AFS_TRACE_LEVEL_VERBOSE,
735 "AFSCommonCreate Decrement4 count on %wZ DE %p Ccb %p Cnt %d\n",
736 &pDirectoryCB->NameInformation.FileName,
744 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
745 AFS_TRACE_LEVEL_VERBOSE,
746 "AFSCommonCreate Object name collision on create Status %08lX\n",
749 InterlockedDecrement( &pParentDirectoryCB->OpenReferenceCount);
751 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
752 AFS_TRACE_LEVEL_VERBOSE,
753 "AFSCommonCreate Decrement5 count on %wZ DE %p Ccb %p Cnt %d\n",
754 &pParentDirectoryCB->NameInformation.FileName,
757 pParentDirectoryCB->OpenReferenceCount);
760 try_return( ntStatus = STATUS_OBJECT_NAME_COLLISION);
764 // OK, go and create the node
767 ntStatus = AFSProcessCreate( Irp,
777 if( !NT_SUCCESS( ntStatus))
780 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
781 AFS_TRACE_LEVEL_ERROR,
782 "AFSCommonCreate Failed to create of %wZ in directory %wZ Status %08lX\n",
784 &pParentDirectoryCB->NameInformation.FileName,
789 // Dereference the parent entry
792 lCount = InterlockedDecrement( &pParentDirectoryCB->OpenReferenceCount);
794 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
795 AFS_TRACE_LEVEL_VERBOSE,
796 "AFSCreate Decrement6 count on %wZ DE %p Ccb %p Cnt %d\n",
797 &pParentDirectoryCB->NameInformation.FileName,
802 try_return( ntStatus);
806 // We should not have an extra component except for PIOCtl opens
809 if( uniComponentName.Length > 0)
813 // If this is an open on "_._AFS_IOCTL_._" then perform handling on it accordingly
816 if( RtlCompareUnicodeString( &AFSPIOCtlName,
821 ntStatus = AFSOpenIOCtlFcb( Irp,
827 if( !NT_SUCCESS( ntStatus))
830 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
831 AFS_TRACE_LEVEL_ERROR,
832 "AFSCommonCreate Failed to IOCtl open on %wZ Status %08lX\n",
840 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
841 AFS_TRACE_LEVEL_VERBOSE,
842 "AFSCommonCreate (%08lX) File %wZ name not found\n",
846 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
849 if( !NT_SUCCESS( ntStatus))
853 // Dereference the parent entry
856 if( pDirectoryCB != NULL)
859 lCount = InterlockedDecrement( &pDirectoryCB->OpenReferenceCount);
861 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
862 AFS_TRACE_LEVEL_VERBOSE,
863 "AFSCommonCreate Decrement7a count on %wZ DE %p Ccb %p Cnt %d\n",
864 &pDirectoryCB->NameInformation.FileName,
872 lCount = InterlockedDecrement( &pParentDirectoryCB->OpenReferenceCount);
874 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
875 AFS_TRACE_LEVEL_VERBOSE,
876 "AFSCommonCreate Decrement7b count on %wZ DE %p Ccb %p Cnt %d\n",
877 &pParentDirectoryCB->NameInformation.FileName,
884 try_return( ntStatus);
888 // For root opens the parent will be NULL
891 if( pParentDirectoryCB == NULL)
895 // Check for the delete on close flag for the root
898 if( BooleanFlagOn( ulOptions, FILE_DELETE_ON_CLOSE ))
901 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
902 AFS_TRACE_LEVEL_ERROR,
903 "AFSCommonCreate (%08lX) Attempt to open root as delete on close\n",
906 lCount = InterlockedDecrement( &pDirectoryCB->OpenReferenceCount);
908 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
909 AFS_TRACE_LEVEL_VERBOSE,
910 "AFSCommonCreate Decrement8 count on %wZ DE %p Ccb %p Cnt %d\n",
911 &pDirectoryCB->NameInformation.FileName,
916 try_return( ntStatus = STATUS_CANNOT_DELETE);
920 // If this is the target directory, then bail
923 if( bOpenTargetDirectory)
926 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
927 AFS_TRACE_LEVEL_ERROR,
928 "AFSCommonCreate (%08lX) Attempt to open root as target directory\n",
931 lCount = InterlockedDecrement( &pDirectoryCB->OpenReferenceCount);
933 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
934 AFS_TRACE_LEVEL_VERBOSE,
935 "AFSCommonCreate Decrement9 count on %wZ DE %p Ccb %p Cnt %d\n",
936 &pDirectoryCB->NameInformation.FileName,
941 try_return( ntStatus = STATUS_INVALID_PARAMETER);
945 // Go and open the root of the volume
948 ntStatus = AFSOpenRoot( Irp,
954 if( !NT_SUCCESS( ntStatus))
957 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
958 AFS_TRACE_LEVEL_ERROR,
959 "AFSCommonCreate Failed to open volume root %08lX-%08lX Status %08lX\n",
960 pVolumeCB->ObjectInformation.FileId.Cell,
961 pVolumeCB->ObjectInformation.FileId.Volume,
964 lCount = InterlockedDecrement( &pDirectoryCB->OpenReferenceCount);
966 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
967 AFS_TRACE_LEVEL_VERBOSE,
968 "AFSCommonCreate Decrement10 count on %wZ DE %p Ccb %p Cnt %d\n",
969 &pDirectoryCB->NameInformation.FileName,
975 try_return( ntStatus);
979 // At this point if we have no pDirectoryCB it was not found.
982 if( pDirectoryCB == NULL)
985 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
986 AFS_TRACE_LEVEL_ERROR,
987 "AFSCommonCreate Failing access to %wZ\n",
990 try_return( ntStatus = STATUS_OBJECT_NAME_NOT_FOUND);
993 if( ulCreateDisposition == FILE_OVERWRITE ||
994 ulCreateDisposition == FILE_SUPERSEDE ||
995 ulCreateDisposition == FILE_OVERWRITE_IF)
999 // Go process a file for overwrite or supersede.
1002 ntStatus = AFSProcessOverwriteSupersede( DeviceObject,
1011 if( !NT_SUCCESS( ntStatus))
1014 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1015 AFS_TRACE_LEVEL_ERROR,
1016 "AFSCommonCreate Failed overwrite/supersede on %wZ Status %08lX\n",
1017 &pDirectoryCB->NameInformation.FileName,
1020 lCount = InterlockedDecrement( &pDirectoryCB->OpenReferenceCount);
1022 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1023 AFS_TRACE_LEVEL_VERBOSE,
1024 "AFSCommonCreate Decrement11 count on %wZ DE %p Ccb %p Cnt %d\n",
1025 &pDirectoryCB->NameInformation.FileName,
1031 try_return( ntStatus);
1035 // Trying to open the file
1038 ntStatus = AFSProcessOpen( Irp,
1046 if( !NT_SUCCESS( ntStatus))
1049 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1050 AFS_TRACE_LEVEL_ERROR,
1051 "AFSCommonCreate Failed open on %wZ Status %08lX\n",
1052 &pDirectoryCB->NameInformation.FileName,
1055 lCount = InterlockedDecrement( &pDirectoryCB->OpenReferenceCount);
1057 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1058 AFS_TRACE_LEVEL_VERBOSE,
1059 "AFSCommonCreate Decrement12 count on %wZ DE %p Ccb %p Cnt %d\n",
1060 &pDirectoryCB->NameInformation.FileName,
1068 if( NT_SUCCESS( ntStatus) &&
1069 ntStatus != STATUS_REPARSE)
1075 AFSAcquireExcl( &pCcb->NPCcb->CcbLock,
1078 RtlCopyMemory( &pCcb->AuthGroup,
1083 // If we have a substitute name, then use it
1086 if( uniSubstitutedPathName.Buffer != NULL)
1089 pCcb->FullFileName = uniSubstitutedPathName;
1091 SetFlag( pCcb->Flags, CCB_FLAG_FREE_FULL_PATHNAME);
1093 ClearFlag( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER);
1098 pCcb->FullFileName = uniRootFileName;
1100 if( BooleanFlagOn( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER))
1103 SetFlag( pCcb->Flags, CCB_FLAG_FREE_FULL_PATHNAME);
1105 ClearFlag( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER);
1109 if( bOpenedReparsePoint)
1111 SetFlag( pCcb->Flags, CCB_FLAG_MASK_OPENED_REPARSE_POINT);
1114 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1115 AFS_TRACE_LEVEL_VERBOSE,
1116 "AFSCommonCreate Count on %wZ DE %p Ccb %p Cnt %d\n",
1117 &pCcb->DirectoryCB->NameInformation.FileName,
1120 pCcb->DirectoryCB->OpenReferenceCount);
1122 ASSERT( pCcb->DirectoryCB->OpenReferenceCount > 0);
1124 pCcb->CurrentDirIndex = 0;
1126 if( !BooleanFlagOn( ulParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS))
1129 SetFlag( pCcb->Flags, CCB_FLAG_RETURN_RELATIVE_ENTRIES);
1133 // Save off the name array for this instance
1136 pCcb->NameArray = pNameArray;
1140 AFSReleaseResource( &pCcb->NPCcb->CcbLock);
1144 // If we make it here then init the FO for the request.
1147 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1148 AFS_TRACE_LEVEL_VERBOSE_2,
1149 "AFSCommonCreate (%08lX) FileObject %08lX FsContext %08lX FsContext2 %08lX\n",
1155 pFileObject->FsContext = (void *)pFcb;
1157 pFileObject->FsContext2 = (void *)pCcb;
1162 ASSERT( pFcb->OpenHandleCount > 0);
1164 ClearFlag( pFcb->Flags, AFS_FCB_FILE_CLOSED);
1167 // For files perform additional processing
1170 switch( pFcb->Header.NodeTypeCode)
1177 pFileObject->SectionObjectPointer = &pFcb->NPFcb->SectionObjectPointers;
1182 // If the user did not request nobuffering then mark the FO as cacheable
1185 if( bNoIntermediateBuffering)
1188 pFileObject->Flags |= FO_NO_INTERMEDIATE_BUFFERING;
1193 pFileObject->Flags |= FO_CACHE_SUPPORTED;
1197 // If the file was opened for execution then we need to set the bit in the FO
1200 if( BooleanFlagOn( *pDesiredAccess,
1204 SetFlag( pFileObject->Flags, FO_FILE_FAST_IO_READ);
1208 // Update the last access time
1211 KeQuerySystemTime( &pFcb->ObjectInformation->LastAccessTime);
1222 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1223 AFS_TRACE_LEVEL_ERROR,
1224 "AFSCommonCreate (%08lX) Returning with NULL Fcb FileObject %08lX FsContext %08lX FsContext2 %08lX\n",
1233 if( NT_SUCCESS( ntStatus) &&
1234 ntStatus == STATUS_REPARSE)
1237 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1238 AFS_TRACE_LEVEL_ERROR,
1239 "AFSCommonCreate (%08lX) STATUS_REPARSE FileObject %08lX FsContext %08lX FsContext2 %08lX\n",
1247 // Free up the sub name if we have one
1250 if( uniSubstitutedPathName.Buffer != NULL)
1253 AFSExFreePoolWithTag( uniSubstitutedPathName.Buffer, 0);
1255 ClearFlag( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER);
1260 // Free up the name array ...
1263 if( pNameArray != NULL)
1266 AFSFreeNameArray( pNameArray);
1269 if( BooleanFlagOn( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER))
1272 AFSExFreePoolWithTag( uniRootFileName.Buffer, 0);
1278 lCount = InterlockedDecrement( &pVolumeCB->VolumeReferenceCount);
1280 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
1281 AFS_TRACE_LEVEL_VERBOSE,
1282 "AFSCommonCreate Decrement count on Volume %08lX Cnt %d\n",
1288 // Setup the Irp for completion, the Information has been set previously
1291 Irp->IoStatus.Status = ntStatus;
1298 AFSOpenAFSRoot( IN PIRP Irp,
1303 NTSTATUS ntStatus = STATUS_SUCCESS;
1310 // Initialize the Ccb for the file.
1313 ntStatus = AFSInitCcb( Ccb);
1315 if( !NT_SUCCESS( ntStatus))
1318 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1319 AFS_TRACE_LEVEL_ERROR,
1320 "AFSOpenAFSRoot (%08lX) Failed to allocate Ccb\n",
1323 try_return( ntStatus);
1330 (*Ccb)->DirectoryCB = AFSGlobalRoot->DirectoryCB;
1333 // Increment the open count on this Fcb
1336 lCount = InterlockedIncrement( &AFSGlobalRoot->RootFcb->OpenReferenceCount);
1338 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1339 AFS_TRACE_LEVEL_VERBOSE,
1340 "AFSOpenAFSRoot Increment count on Fcb %08lX Cnt %d\n",
1341 AFSGlobalRoot->RootFcb,
1344 lCount = InterlockedIncrement( &AFSGlobalRoot->RootFcb->OpenHandleCount);
1346 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1347 AFS_TRACE_LEVEL_VERBOSE,
1348 "AFSOpenAFSRoot Increment handle count on Fcb %08lX Cnt %d\n",
1349 AFSGlobalRoot->RootFcb,
1352 *Fcb = AFSGlobalRoot->RootFcb;
1355 // Return the open result for this file
1358 Irp->IoStatus.Information = FILE_OPENED;
1369 AFSOpenRoot( IN PIRP Irp,
1370 IN AFSVolumeCB *VolumeCB,
1372 OUT AFSFcb **RootFcb,
1376 NTSTATUS ntStatus = STATUS_SUCCESS;
1377 PFILE_OBJECT pFileObject = NULL;
1378 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1379 PACCESS_MASK pDesiredAccess = NULL;
1380 USHORT usShareAccess;
1382 BOOLEAN bAllocatedCcb = FALSE;
1383 BOOLEAN bReleaseFcb = FALSE;
1384 AFSFileOpenCB stOpenCB;
1385 AFSFileOpenResultCB stOpenResultCB;
1386 ULONG ulResultLen = 0;
1392 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
1393 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
1394 ulOptions = pIrpSp->Parameters.Create.Options;
1396 pFileObject = pIrpSp->FileObject;
1398 if( BooleanFlagOn( ulOptions, FILE_NON_DIRECTORY_FILE))
1401 ntStatus = STATUS_FILE_IS_A_DIRECTORY;
1403 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1404 AFS_TRACE_LEVEL_ERROR,
1405 "AFSOpenRoot (%08lX) Attempt to open root as file Status %08lX\n",
1409 try_return( ntStatus);
1413 // Check if we should go and retrieve updated information for the node
1416 ntStatus = AFSValidateEntry( VolumeCB->DirectoryCB,
1420 if( !NT_SUCCESS( ntStatus))
1423 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1424 AFS_TRACE_LEVEL_ERROR,
1425 "AFSOpenRoot (%08lX) Failed to validate root entry Status %08lX\n",
1429 try_return( ntStatus);
1433 // Check with the service that we can open the file
1436 RtlZeroMemory( &stOpenCB,
1437 sizeof( AFSFileOpenCB));
1439 stOpenCB.DesiredAccess = *pDesiredAccess;
1441 stOpenCB.ShareAccess = usShareAccess;
1443 stOpenResultCB.GrantedAccess = 0;
1445 ulResultLen = sizeof( AFSFileOpenResultCB);
1447 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_OPEN_FILE,
1448 AFS_REQUEST_FLAG_SYNCHRONOUS | AFS_REQUEST_FLAG_HOLD_FID,
1451 &VolumeCB->ObjectInformation.FileId,
1453 sizeof( AFSFileOpenCB),
1454 (void *)&stOpenResultCB,
1457 if( !NT_SUCCESS( ntStatus))
1460 UNICODE_STRING uniGUID;
1463 uniGUID.MaximumLength = 0;
1464 uniGUID.Buffer = NULL;
1466 if( AuthGroup != NULL)
1468 RtlStringFromGUID( *AuthGroup,
1472 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1473 AFS_TRACE_LEVEL_ERROR,
1474 "AFSOpenRoot (%08lX) Failed open in service volume %08lX-%08lX AuthGroup %wZ Status %08lX\n",
1476 VolumeCB->ObjectInformation.FileId.Cell,
1477 VolumeCB->ObjectInformation.FileId.Volume,
1481 if( AuthGroup != NULL)
1483 RtlFreeUnicodeString( &uniGUID);
1486 try_return( ntStatus);
1490 // If the entry is not initialized then do it now
1493 if( !BooleanFlagOn( VolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
1496 AFSAcquireExcl( VolumeCB->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock,
1499 if( !BooleanFlagOn( VolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
1502 ntStatus = AFSEnumerateDirectory( AuthGroup,
1503 &VolumeCB->ObjectInformation,
1506 if( !NT_SUCCESS( ntStatus))
1509 AFSReleaseResource( VolumeCB->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
1511 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1512 AFS_TRACE_LEVEL_ERROR,
1513 "AFSOpenRoot (%08lX) Failed to enumerate directory Status %08lX\n",
1517 try_return( ntStatus);
1520 SetFlag( VolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED);
1523 AFSReleaseResource( VolumeCB->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
1527 // If the root fcb has been initialized then check access otherwise
1528 // init the volume fcb
1531 if( VolumeCB->RootFcb == NULL)
1534 ntStatus = AFSInitRootFcb( (ULONGLONG)PsGetCurrentProcessId(),
1537 if( !NT_SUCCESS( ntStatus))
1540 try_return( ntStatus);
1546 AFSAcquireExcl( VolumeCB->RootFcb->Header.Resource,
1553 // If there are current opens on the Fcb, check the access.
1556 if( VolumeCB->RootFcb->OpenHandleCount > 0)
1559 ntStatus = IoCheckShareAccess( *pDesiredAccess,
1562 &VolumeCB->RootFcb->ShareAccess,
1565 if( !NT_SUCCESS( ntStatus))
1568 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1569 AFS_TRACE_LEVEL_ERROR,
1570 "AFSOpenRoot (%08lX) Access check failure Status %08lX\n",
1574 try_return( ntStatus);
1579 // Initialize the Ccb for the file.
1582 ntStatus = AFSInitCcb( Ccb);
1584 if( !NT_SUCCESS( ntStatus))
1587 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1588 AFS_TRACE_LEVEL_ERROR,
1589 "AFSOpenRoot (%08lX) Failed to allocate Ccb Status %08lX\n",
1593 try_return( ntStatus);
1596 bAllocatedCcb = TRUE;
1602 (*Ccb)->DirectoryCB = VolumeCB->DirectoryCB;
1604 (*Ccb)->GrantedAccess = *pDesiredAccess;
1607 // OK, update the share access on the fileobject
1610 if( VolumeCB->RootFcb->OpenHandleCount > 0)
1613 IoUpdateShareAccess( pFileObject,
1614 &VolumeCB->RootFcb->ShareAccess);
1623 IoSetShareAccess( *pDesiredAccess,
1626 &VolumeCB->RootFcb->ShareAccess);
1630 // Increment the open count on this Fcb
1633 lCount = InterlockedIncrement( &VolumeCB->RootFcb->OpenReferenceCount);
1635 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1636 AFS_TRACE_LEVEL_VERBOSE,
1637 "AFSOpenRoot Increment count on Fcb %08lX Cnt %d\n",
1641 lCount = InterlockedIncrement( &VolumeCB->RootFcb->OpenHandleCount);
1643 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1644 AFS_TRACE_LEVEL_VERBOSE,
1645 "AFSOpenRoot Increment handle count on Fcb %08lX Cnt %d\n",
1650 // Indicate the object is held
1653 SetFlag( VolumeCB->ObjectInformation.Flags, AFS_OBJECT_HELD_IN_SERVICE);
1656 // Return the open result for this file
1659 Irp->IoStatus.Information = FILE_OPENED;
1661 *RootFcb = VolumeCB->RootFcb;
1668 AFSReleaseResource( VolumeCB->RootFcb->Header.Resource);
1671 if( !NT_SUCCESS( ntStatus))
1683 Irp->IoStatus.Information = 0;
1691 AFSProcessCreate( IN PIRP Irp,
1693 IN AFSVolumeCB *VolumeCB,
1694 IN AFSDirectoryCB *ParentDirCB,
1695 IN PUNICODE_STRING FileName,
1696 IN PUNICODE_STRING ComponentName,
1697 IN PUNICODE_STRING FullFileName,
1702 NTSTATUS ntStatus = STATUS_SUCCESS;
1703 PFILE_OBJECT pFileObject = NULL;
1704 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1705 ULONG ulOptions = 0;
1706 ULONG ulShareMode = 0;
1708 ULONG ulAttributes = 0;
1709 LARGE_INTEGER liAllocationSize = {0,0};
1710 BOOLEAN bFileCreated = FALSE, bReleaseFcb = FALSE, bAllocatedCcb = FALSE;
1711 PACCESS_MASK pDesiredAccess = NULL;
1712 USHORT usShareAccess;
1713 AFSDirectoryCB *pDirEntry = NULL;
1714 AFSObjectInfoCB *pParentObjectInfo = NULL;
1715 AFSObjectInfoCB *pObjectInfo = NULL;
1721 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
1722 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
1724 pFileObject = pIrpSp->FileObject;
1727 // Extract out the options
1730 ulOptions = pIrpSp->Parameters.Create.Options;
1733 // We pass all attributes they want to apply to the file to the create
1736 ulAttributes = pIrpSp->Parameters.Create.FileAttributes;
1739 // If this is a directory create then set the attribute correctly
1742 if( ulOptions & FILE_DIRECTORY_FILE)
1745 ulAttributes |= FILE_ATTRIBUTE_DIRECTORY;
1748 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1749 AFS_TRACE_LEVEL_VERBOSE,
1750 "AFSProcessCreate (%08lX) Creating file %wZ Attributes %08lX\n",
1755 if( BooleanFlagOn( VolumeCB->VolumeInformation.Characteristics, FILE_READ_ONLY_DEVICE))
1758 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1759 AFS_TRACE_LEVEL_ERROR,
1760 "AFSProcessCreate Request failed due to read only volume %wZ\n",
1763 try_return( ntStatus = STATUS_MEDIA_WRITE_PROTECTED);
1766 pParentObjectInfo = ParentDirCB->ObjectInformation;
1769 // Allocate and insert the direntry into the parent node
1772 ntStatus = AFSCreateDirEntry( AuthGroup,
1780 if( !NT_SUCCESS( ntStatus))
1783 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1784 AFS_TRACE_LEVEL_ERROR,
1785 "AFSProcessCreate (%08lX) Failed to create directory entry %wZ Status %08lX\n",
1790 try_return( ntStatus);
1793 bFileCreated = TRUE;
1795 pObjectInfo = pDirEntry->ObjectInformation;
1797 if( BooleanFlagOn( pObjectInfo->Flags, AFS_OBJECT_FLAGS_NOT_EVALUATED) ||
1798 pObjectInfo->FileType == AFS_FILE_TYPE_UNKNOWN)
1801 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1802 AFS_TRACE_LEVEL_VERBOSE,
1803 "AFSProcessCreate (%08lX) Evaluating object %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1805 &pDirEntry->NameInformation.FileName,
1806 pObjectInfo->FileId.Cell,
1807 pObjectInfo->FileId.Volume,
1808 pObjectInfo->FileId.Vnode,
1809 pObjectInfo->FileId.Unique);
1811 ntStatus = AFSEvaluateNode( AuthGroup,
1814 if( !NT_SUCCESS( ntStatus))
1817 if ( ntStatus == STATUS_NOT_A_DIRECTORY)
1820 if ( pParentObjectInfo == pObjectInfo->ParentObjectInformation)
1823 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1824 AFS_TRACE_LEVEL_ERROR,
1825 "AFSProcessCreate (%08lX) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX PARENT %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1827 &pDirEntry->NameInformation.FileName,
1828 pObjectInfo->FileId.Cell,
1829 pObjectInfo->FileId.Volume,
1830 pObjectInfo->FileId.Vnode,
1831 pObjectInfo->FileId.Unique,
1832 pParentObjectInfo->FileId.Cell,
1833 pParentObjectInfo->FileId.Volume,
1834 pParentObjectInfo->FileId.Vnode,
1835 pParentObjectInfo->FileId.Unique,
1838 else if ( pObjectInfo->ParentObjectInformation == NULL)
1841 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1842 AFS_TRACE_LEVEL_ERROR,
1843 "AFSProcessCreate (%08lX) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX PARENT %08lX-%08lX-%08lX-%08lX != NULL Status %08lX\n",
1845 &pDirEntry->NameInformation.FileName,
1846 pObjectInfo->FileId.Cell,
1847 pObjectInfo->FileId.Volume,
1848 pObjectInfo->FileId.Vnode,
1849 pObjectInfo->FileId.Unique,
1850 pParentObjectInfo->FileId.Cell,
1851 pParentObjectInfo->FileId.Volume,
1852 pParentObjectInfo->FileId.Vnode,
1853 pParentObjectInfo->FileId.Unique,
1859 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1860 AFS_TRACE_LEVEL_ERROR,
1861 "AFSProcessCreate (%08lX) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX PARENT %08lX-%08lX-%08lX-%08lX != %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1863 &pDirEntry->NameInformation.FileName,
1864 pObjectInfo->FileId.Cell,
1865 pObjectInfo->FileId.Volume,
1866 pObjectInfo->FileId.Vnode,
1867 pObjectInfo->FileId.Unique,
1868 pParentObjectInfo->FileId.Cell,
1869 pParentObjectInfo->FileId.Volume,
1870 pParentObjectInfo->FileId.Vnode,
1871 pParentObjectInfo->FileId.Unique,
1872 pObjectInfo->ParentObjectInformation->FileId.Cell,
1873 pObjectInfo->ParentObjectInformation->FileId.Volume,
1874 pObjectInfo->ParentObjectInformation->FileId.Vnode,
1875 pObjectInfo->ParentObjectInformation->FileId.Unique,
1882 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1883 AFS_TRACE_LEVEL_ERROR,
1884 "AFSProcessCreate (%08lX) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1886 &pDirEntry->NameInformation.FileName,
1887 pObjectInfo->FileId.Cell,
1888 pObjectInfo->FileId.Volume,
1889 pObjectInfo->FileId.Vnode,
1890 pObjectInfo->FileId.Unique,
1894 try_return( ntStatus);
1897 ClearFlag( pObjectInfo->Flags, AFS_OBJECT_FLAGS_NOT_EVALUATED);
1901 // We may have raced and the Fcb is already created
1905 // Allocate and initialize the Fcb for the file.
1908 ntStatus = AFSInitFcb( pDirEntry);
1910 *Fcb = pObjectInfo->Fcb;
1912 if( !NT_SUCCESS( ntStatus))
1915 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1916 AFS_TRACE_LEVEL_ERROR,
1917 "AFSProcessCreate (%08lX) Failed to initialize fcb %wZ Status %08lX\n",
1922 try_return( ntStatus);
1925 ntStatus = STATUS_SUCCESS;
1928 // Increment the open count on this Fcb
1931 lCount = InterlockedIncrement( &(*Fcb)->OpenReferenceCount);
1933 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1934 AFS_TRACE_LEVEL_VERBOSE,
1935 "AFSProcessCreate Increment count on Fcb %08lX Cnt %d\n",
1942 // Initialize the Ccb for the file.
1945 ntStatus = AFSInitCcb( Ccb);
1947 if( !NT_SUCCESS( ntStatus))
1950 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1951 AFS_TRACE_LEVEL_ERROR,
1952 "AFSProcessCreate (%08lX) Failed to initialize ccb %wZ Status %08lX\n",
1957 try_return( ntStatus);
1960 bAllocatedCcb = TRUE;
1963 // Initialize the Ccb
1966 (*Ccb)->DirectoryCB = pDirEntry;
1968 (*Ccb)->GrantedAccess = *pDesiredAccess;
1971 // If this is a file, update the headers filesizes.
1974 if( (*Fcb)->Header.NodeTypeCode == AFS_FILE_FCB)
1978 // Update the sizes with the information passed in
1981 (*Fcb)->Header.AllocationSize.QuadPart = pObjectInfo->AllocationSize.QuadPart;
1982 (*Fcb)->Header.FileSize.QuadPart = pObjectInfo->EndOfFile.QuadPart;
1983 (*Fcb)->Header.ValidDataLength.QuadPart = pObjectInfo->EndOfFile.QuadPart;
1986 // Notify the system of the addition
1989 AFSFsRtlNotifyFullReportChange( pParentObjectInfo,
1991 (ULONG)FILE_NOTIFY_CHANGE_FILE_NAME,
1992 (ULONG)FILE_ACTION_ADDED);
1994 (*Fcb)->NPFcb->Specific.File.ExtentsRequestStatus = STATUS_SUCCESS;
1996 else if( (*Fcb)->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
2000 // This is a new directory node so indicate it has been enumerated
2003 SetFlag( pObjectInfo->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED);
2006 // And the parent directory entry
2009 KeQuerySystemTime( &pParentObjectInfo->ChangeTime);
2012 // Notify the system of the addition
2015 AFSFsRtlNotifyFullReportChange( pParentObjectInfo,
2017 (ULONG)FILE_NOTIFY_CHANGE_DIR_NAME,
2018 (ULONG)FILE_ACTION_ADDED);
2020 else if( (*Fcb)->Header.NodeTypeCode == AFS_MOUNT_POINT_FCB ||
2021 (*Fcb)->Header.NodeTypeCode == AFS_SYMBOLIC_LINK_FCB ||
2022 (*Fcb)->Header.NodeTypeCode == AFS_DFS_LINK_FCB ||
2023 (*Fcb)->Header.NodeTypeCode == AFS_INVALID_FCB)
2027 // And the parent directory entry
2030 KeQuerySystemTime( &pParentObjectInfo->ChangeTime);
2033 // Notify the system of the addition
2036 AFSFsRtlNotifyFullReportChange( pParentObjectInfo,
2038 (ULONG)FILE_NOTIFY_CHANGE_DIR_NAME,
2039 (ULONG)FILE_ACTION_ADDED);
2043 // Save off the access for the open
2046 IoSetShareAccess( *pDesiredAccess,
2049 &(*Fcb)->ShareAccess);
2051 lCount = InterlockedIncrement( &(*Fcb)->OpenHandleCount);
2053 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2054 AFS_TRACE_LEVEL_VERBOSE,
2055 "AFSProcessCreate Increment handle count on Fcb %08lX Cnt %d\n",
2060 // Increment the open reference and handle on the parent node
2063 lCount = InterlockedIncrement( &pObjectInfo->ParentObjectInformation->Specific.Directory.ChildOpenHandleCount);
2065 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2066 AFS_TRACE_LEVEL_VERBOSE,
2067 "AFSProcessCreate Increment child open handle count on Parent object %08lX Cnt %d\n",
2068 pObjectInfo->ParentObjectInformation,
2071 lCount = InterlockedIncrement( &pObjectInfo->ParentObjectInformation->Specific.Directory.ChildOpenReferenceCount);
2073 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2074 AFS_TRACE_LEVEL_VERBOSE,
2075 "AFSProcessCreate Increment child open ref count on Parent object %08lX Cnt %d\n",
2076 pObjectInfo->ParentObjectInformation,
2079 if( ulOptions & FILE_DELETE_ON_CLOSE)
2083 // Mark it for delete on close
2086 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2087 AFS_TRACE_LEVEL_VERBOSE,
2088 "AFSProcessCreate (%08lX) Setting PENDING_DELETE flag in DirEntry %p Name %wZ\n",
2093 SetFlag( pDirEntry->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
2097 // Indicate the object is locked in the service
2100 SetFlag( pObjectInfo->Flags, AFS_OBJECT_HELD_IN_SERVICE);
2103 // Return the open result for this file
2106 Irp->IoStatus.Information = FILE_CREATED;
2111 // If we created the Fcb we need to release the resources
2117 if( !NT_SUCCESS( ntStatus))
2120 // Decrement the open count on this Fcb
2123 lCount = InterlockedDecrement( &(*Fcb)->OpenReferenceCount);
2125 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2126 AFS_TRACE_LEVEL_VERBOSE,
2127 "AFSProcessCreate Decrement count on Fcb %08lX Cnt %d\n",
2132 AFSReleaseResource( &(*Fcb)->NPFcb->Resource);
2135 if( !NT_SUCCESS( ntStatus))
2141 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2142 AFS_TRACE_LEVEL_VERBOSE,
2143 "AFSProcessCreate Create failed, removing DE %p from aprent object %p Status %08lX\n",
2149 // Remove the dir entry from the parent
2152 AFSAcquireExcl( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2155 SetFlag( pDirEntry->Flags, AFS_DIR_ENTRY_DELETED);
2157 AFSNotifyDelete( pDirEntry,
2162 // Decrement the reference added during initialization of the DE
2165 lCount = InterlockedDecrement( &pDirEntry->OpenReferenceCount);
2167 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
2168 AFS_TRACE_LEVEL_VERBOSE,
2169 "AFSProcessCreate Decrement count on %wZ DE %p Cnt %d\n",
2170 &pDirEntry->NameInformation.FileName,
2175 // Pull the directory entry from the parent
2178 AFSRemoveDirNodeFromParent( pParentObjectInfo,
2180 FALSE); // Leave it in the enum list so the worker cleans it up
2183 // Tag the parent as needing verification
2186 SetFlag( pParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2188 pParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2190 AFSReleaseResource( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2201 // Fcb will be freed by AFSPrimaryVolumeWorker thread
2214 AFSOpenTargetDirectory( IN PIRP Irp,
2215 IN AFSVolumeCB *VolumeCB,
2216 IN AFSDirectoryCB *ParentDirectoryCB,
2217 IN AFSDirectoryCB *TargetDirectoryCB,
2218 IN UNICODE_STRING *TargetName,
2223 NTSTATUS ntStatus = STATUS_SUCCESS;
2224 PFILE_OBJECT pFileObject = NULL;
2225 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2226 PACCESS_MASK pDesiredAccess = NULL;
2227 USHORT usShareAccess;
2228 BOOLEAN bAllocatedCcb = FALSE;
2229 BOOLEAN bReleaseFcb = FALSE;
2230 AFSObjectInfoCB *pParentObject = NULL, *pTargetObject = NULL;
2231 UNICODE_STRING uniTargetName;
2237 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
2238 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
2240 pFileObject = pIrpSp->FileObject;
2242 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2243 AFS_TRACE_LEVEL_VERBOSE,
2244 "AFSOpenTargetDirectory (%08lX) Processing file %wZ\n",
2248 pParentObject = ParentDirectoryCB->ObjectInformation;
2250 if( pParentObject->FileType != AFS_FILE_TYPE_DIRECTORY)
2253 try_return( ntStatus = STATUS_INVALID_PARAMETER);
2257 // Make sure we have an Fcb for the access
2260 // Allocate and initialize the Fcb for the file.
2263 ntStatus = AFSInitFcb( ParentDirectoryCB);
2265 *Fcb = pParentObject->Fcb;
2267 if( !NT_SUCCESS( ntStatus))
2270 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2271 AFS_TRACE_LEVEL_ERROR,
2272 "AFSOpenTargetDirectory (%08lX) Failed to initialize fcb %wZ Status %08lX\n",
2274 &ParentDirectoryCB->NameInformation.FileName,
2277 try_return( ntStatus);
2280 ntStatus = STATUS_SUCCESS;
2283 // Increment the open count on this Fcb
2286 lCount = InterlockedIncrement( &pParentObject->Fcb->OpenReferenceCount);
2288 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2289 AFS_TRACE_LEVEL_VERBOSE,
2290 "AFSOpenTargetDirectory Increment count on Fcb %08lX Cnt %d\n",
2297 // If there are current opens on the Fcb, check the access.
2300 if( pParentObject->Fcb->OpenHandleCount > 0)
2303 ntStatus = IoCheckShareAccess( *pDesiredAccess,
2306 &pParentObject->Fcb->ShareAccess,
2309 if( !NT_SUCCESS( ntStatus))
2312 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2313 AFS_TRACE_LEVEL_ERROR,
2314 "AFSOpenTargetDirectory (%08lX) Access check failure %wZ Status %08lX\n",
2316 &ParentDirectoryCB->NameInformation.FileName,
2319 try_return( ntStatus);
2324 // Initialize the Ccb for the file.
2327 ntStatus = AFSInitCcb( Ccb);
2329 if( !NT_SUCCESS( ntStatus))
2332 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2333 AFS_TRACE_LEVEL_ERROR,
2334 "AFSOpenTargetDirectory (%08lX) Failed to initialize ccb %wZ Status %08lX\n",
2336 &ParentDirectoryCB->NameInformation.FileName,
2339 try_return( ntStatus);
2342 bAllocatedCcb = TRUE;
2345 // Initialize the Ccb
2348 (*Ccb)->DirectoryCB = ParentDirectoryCB;
2350 (*Ccb)->GrantedAccess = *pDesiredAccess;
2352 if( TargetDirectoryCB != NULL &&
2353 FsRtlAreNamesEqual( &TargetDirectoryCB->NameInformation.FileName,
2359 Irp->IoStatus.Information = FILE_EXISTS;
2361 uniTargetName = TargetDirectoryCB->NameInformation.FileName;
2366 Irp->IoStatus.Information = FILE_DOES_NOT_EXIST;
2368 uniTargetName = *TargetName;
2372 // Update the filename in the fileobject for rename processing
2375 RtlCopyMemory( pFileObject->FileName.Buffer,
2376 uniTargetName.Buffer,
2377 uniTargetName.Length);
2379 pFileObject->FileName.Length = uniTargetName.Length;
2382 // OK, update the share access on the fileobject
2385 if( pParentObject->Fcb->OpenHandleCount > 0)
2388 IoUpdateShareAccess( pFileObject,
2389 &pParentObject->Fcb->ShareAccess);
2398 IoSetShareAccess( *pDesiredAccess,
2401 &pParentObject->Fcb->ShareAccess);
2404 lCount = InterlockedIncrement( &pParentObject->Fcb->OpenHandleCount);
2406 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2407 AFS_TRACE_LEVEL_VERBOSE,
2408 "AFSOpenTargetDirectory Increment handle count on Fcb %08lX Cnt %d\n",
2413 // Increment the open reference and handle on the parent node
2416 if( pParentObject->ParentObjectInformation != NULL)
2419 lCount = InterlockedIncrement( &pParentObject->ParentObjectInformation->Specific.Directory.ChildOpenHandleCount);
2421 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2422 AFS_TRACE_LEVEL_VERBOSE,
2423 "AFSOpenTargetDirectory Increment child open handle count on Parent object %08lX Cnt %d\n",
2424 pParentObject->ParentObjectInformation,
2427 lCount = InterlockedIncrement( &pParentObject->ParentObjectInformation->Specific.Directory.ChildOpenReferenceCount);
2429 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2430 AFS_TRACE_LEVEL_VERBOSE,
2431 "AFSOpenTargetDirectory Increment child open ref count on Parent object %08lX Cnt %d\n",
2432 pParentObject->ParentObjectInformation,
2441 if( !NT_SUCCESS( ntStatus))
2444 // Decrement the open count on this Fcb
2447 lCount = InterlockedDecrement( &pParentObject->Fcb->OpenReferenceCount);
2449 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2450 AFS_TRACE_LEVEL_VERBOSE,
2451 "AFSOpenTargetDirectory Decrement count on Fcb %08lX Cnt %d\n",
2456 AFSReleaseResource( &pParentObject->Fcb->NPFcb->Resource);
2459 if( !NT_SUCCESS( ntStatus))
2472 // Fcb will be freed by AFSPrimaryVolumeWorker thread
2483 AFSProcessOpen( IN PIRP Irp,
2485 IN AFSVolumeCB *VolumeCB,
2486 IN AFSDirectoryCB *ParentDirCB,
2487 IN AFSDirectoryCB *DirectoryCB,
2492 NTSTATUS ntStatus = STATUS_SUCCESS;
2493 PFILE_OBJECT pFileObject = NULL;
2494 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2495 PACCESS_MASK pDesiredAccess = NULL;
2496 USHORT usShareAccess;
2497 BOOLEAN bAllocatedCcb = FALSE, bReleaseFcb = FALSE;
2498 ULONG ulAdditionalFlags = 0, ulOptions = 0;
2499 AFSFileOpenCB stOpenCB;
2500 AFSFileOpenResultCB stOpenResultCB;
2501 ULONG ulResultLen = 0;
2502 AFSObjectInfoCB *pParentObjectInfo = NULL;
2503 AFSObjectInfoCB *pObjectInfo = NULL;
2504 ULONG ulFileAccess = 0;
2505 AFSFileAccessReleaseCB stReleaseFileAccess;
2511 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
2512 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
2514 pFileObject = pIrpSp->FileObject;
2516 pParentObjectInfo = ParentDirCB->ObjectInformation;
2518 pObjectInfo = DirectoryCB->ObjectInformation;
2521 // Check if the entry is pending a deletion
2524 if( BooleanFlagOn( DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE))
2527 ntStatus = STATUS_DELETE_PENDING;
2529 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2530 AFS_TRACE_LEVEL_ERROR,
2531 "AFSProcessOpen (%08lX) Entry pending delete %wZ Status %08lX\n",
2533 &DirectoryCB->NameInformation.FileName,
2536 try_return( ntStatus);
2540 // Extract out the options
2543 ulOptions = pIrpSp->Parameters.Create.Options;
2546 // Check if we should go and retrieve updated information for the node
2549 ntStatus = AFSValidateEntry( DirectoryCB,
2553 if( !NT_SUCCESS( ntStatus))
2556 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2557 AFS_TRACE_LEVEL_ERROR,
2558 "AFSProcessOpen (%08lX) Failed to validate entry %wZ Status %08lX\n",
2560 &DirectoryCB->NameInformation.FileName,
2563 try_return( ntStatus);
2567 // If this is marked for delete on close then be sure we can delete the entry
2570 if( BooleanFlagOn( ulOptions, FILE_DELETE_ON_CLOSE))
2573 ntStatus = AFSNotifyDelete( DirectoryCB,
2577 if( !NT_SUCCESS( ntStatus))
2580 ntStatus = STATUS_CANNOT_DELETE;
2582 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2583 AFS_TRACE_LEVEL_ERROR,
2584 "AFSProcessOpen (%08lX) Cannot delete entry %wZ marked for delete on close Status %08lX\n",
2586 &DirectoryCB->NameInformation.FileName,
2589 try_return( ntStatus);
2594 // Be sure we have an Fcb for the current object
2597 ntStatus = AFSInitFcb( DirectoryCB);
2599 if( !NT_SUCCESS( ntStatus))
2602 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2603 AFS_TRACE_LEVEL_ERROR,
2604 "AFSProcessOpen (%08lX) Failed to init fcb on %wZ Status %08lX\n",
2606 &DirectoryCB->NameInformation.FileName,
2609 try_return( ntStatus);
2612 ntStatus = STATUS_SUCCESS;
2615 // AFSInitFcb returns the Fcb resource held
2621 // Increment the open count on this Fcb
2624 lCount = InterlockedIncrement( &pObjectInfo->Fcb->OpenReferenceCount);
2626 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2627 AFS_TRACE_LEVEL_VERBOSE,
2628 "AFSProcessOpen Increment2 count on Fcb %08lX Cnt %d\n",
2633 // Check access on the entry
2636 if( pObjectInfo->Fcb->OpenHandleCount > 0)
2639 ntStatus = IoCheckShareAccess( *pDesiredAccess,
2642 &pObjectInfo->Fcb->ShareAccess,
2645 if( !NT_SUCCESS( ntStatus))
2648 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2649 AFS_TRACE_LEVEL_ERROR,
2650 "AFSProcessOpen (%08lX) Failed to check share access on %wZ Status %08lX\n",
2652 &DirectoryCB->NameInformation.FileName,
2655 try_return( ntStatus);
2660 // Additional checks
2663 if( pObjectInfo->Fcb->Header.NodeTypeCode == AFS_FILE_FCB)
2667 // If the caller is asking for write access then try to flush the image section
2670 if( FlagOn( *pDesiredAccess, FILE_WRITE_DATA) ||
2671 BooleanFlagOn(ulOptions, FILE_DELETE_ON_CLOSE))
2674 if( !MmFlushImageSection( &pObjectInfo->Fcb->NPFcb->SectionObjectPointers,
2678 ntStatus = BooleanFlagOn(ulOptions, FILE_DELETE_ON_CLOSE) ? STATUS_CANNOT_DELETE :
2679 STATUS_SHARING_VIOLATION;
2681 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2682 AFS_TRACE_LEVEL_ERROR,
2683 "AFSProcessOpen (%08lX) Failed to flush image section %wZ Status %08lX\n",
2685 &DirectoryCB->NameInformation.FileName,
2688 try_return( ntStatus);
2692 if( BooleanFlagOn( ulOptions, FILE_DIRECTORY_FILE))
2695 ntStatus = STATUS_NOT_A_DIRECTORY;
2697 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2698 AFS_TRACE_LEVEL_ERROR,
2699 "AFSProcessOpen (%08lX) Attempt to open file as directory %wZ Status %08lX\n",
2701 &DirectoryCB->NameInformation.FileName,
2704 try_return( ntStatus);
2707 pObjectInfo->Fcb->NPFcb->Specific.File.ExtentsRequestStatus = STATUS_SUCCESS;
2709 else if( pObjectInfo->Fcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB ||
2710 pObjectInfo->Fcb->Header.NodeTypeCode == AFS_ROOT_FCB)
2713 if( BooleanFlagOn( ulOptions, FILE_NON_DIRECTORY_FILE))
2716 ntStatus = STATUS_FILE_IS_A_DIRECTORY;
2718 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2719 AFS_TRACE_LEVEL_ERROR,
2720 "AFSProcessOpen (%08lX) Attempt to open directory as file %wZ Status %08lX\n",
2722 &DirectoryCB->NameInformation.FileName,
2725 try_return( ntStatus);
2728 else if( pObjectInfo->Fcb->Header.NodeTypeCode == AFS_MOUNT_POINT_FCB ||
2729 pObjectInfo->Fcb->Header.NodeTypeCode == AFS_SYMBOLIC_LINK_FCB ||
2730 pObjectInfo->Fcb->Header.NodeTypeCode == AFS_DFS_LINK_FCB ||
2731 pObjectInfo->Fcb->Header.NodeTypeCode == AFS_INVALID_FCB)
2738 try_return( ntStatus = STATUS_UNSUCCESSFUL);
2742 // Check with the service that we can open the file
2745 stOpenCB.ParentId = pParentObjectInfo->FileId;
2747 stOpenCB.DesiredAccess = *pDesiredAccess;
2749 stOpenCB.ShareAccess = usShareAccess;
2751 stOpenCB.ProcessId = (ULONGLONG)PsGetCurrentProcessId();
2753 stOpenCB.Identifier = (ULONGLONG)pFileObject;
2755 stOpenResultCB.GrantedAccess = 0;
2757 ulResultLen = sizeof( AFSFileOpenResultCB);
2759 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_OPEN_FILE,
2760 AFS_REQUEST_FLAG_SYNCHRONOUS | AFS_REQUEST_FLAG_HOLD_FID,
2762 &DirectoryCB->NameInformation.FileName,
2763 &pObjectInfo->FileId,
2765 sizeof( AFSFileOpenCB),
2766 (void *)&stOpenResultCB,
2769 if( !NT_SUCCESS( ntStatus))
2772 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2773 AFS_TRACE_LEVEL_ERROR,
2774 "AFSProcessOpen (%08lX) Failed open in service %wZ Status %08lX\n",
2776 &DirectoryCB->NameInformation.FileName,
2779 try_return( ntStatus);
2783 // Save the granted access in case we need to release it below
2786 ulFileAccess = stOpenResultCB.FileAccess;
2789 // Check if there is a conflict
2792 if( !AFSCheckAccess( *pDesiredAccess,
2793 stOpenResultCB.GrantedAccess,
2794 BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_DIRECTORY)))
2797 ntStatus = STATUS_ACCESS_DENIED;
2799 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2800 AFS_TRACE_LEVEL_ERROR,
2801 "AFSProcessOpen (%08lX) Failed to check access from service Desired %08lX Granted %08lX Entry %wZ Status %08lX\n",
2804 stOpenResultCB.GrantedAccess,
2805 &DirectoryCB->NameInformation.FileName,
2808 try_return( ntStatus);
2812 // Initialize the Ccb for the file.
2815 ntStatus = AFSInitCcb( Ccb);
2817 if( !NT_SUCCESS( ntStatus))
2820 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2821 AFS_TRACE_LEVEL_ERROR,
2822 "AFSProcessOpen (%08lX) Failed to initialize ccb %wZ Status %08lX\n",
2824 &DirectoryCB->NameInformation.FileName,
2827 try_return( ntStatus);
2830 bAllocatedCcb = TRUE;
2832 (*Ccb)->DirectoryCB = DirectoryCB;
2834 (*Ccb)->FileAccess = ulFileAccess;
2836 (*Ccb)->GrantedAccess = *pDesiredAccess;
2839 // Perform the access check on the target if this is a mount point or symlink
2842 if( pObjectInfo->Fcb->OpenHandleCount > 0)
2845 IoUpdateShareAccess( pFileObject,
2846 &pObjectInfo->Fcb->ShareAccess);
2855 IoSetShareAccess( *pDesiredAccess,
2858 &pObjectInfo->Fcb->ShareAccess);
2861 lCount = InterlockedIncrement( &pObjectInfo->Fcb->OpenHandleCount);
2863 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2864 AFS_TRACE_LEVEL_VERBOSE,
2865 "AFSProcessOpen Increment handle count on Fcb %08lX Cnt %d\n",
2870 // Increment the open reference and handle on the parent node
2873 lCount = InterlockedIncrement( &pObjectInfo->ParentObjectInformation->Specific.Directory.ChildOpenHandleCount);
2875 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2876 AFS_TRACE_LEVEL_VERBOSE,
2877 "AFSProcessOpen Increment child open handle count on Parent object %08lX Cnt %d\n",
2878 pObjectInfo->ParentObjectInformation,
2881 lCount = InterlockedIncrement( &pObjectInfo->ParentObjectInformation->Specific.Directory.ChildOpenReferenceCount);
2883 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2884 AFS_TRACE_LEVEL_VERBOSE,
2885 "AFSProcessOpen Increment child open ref count on Parent object %08lX Cnt %d\n",
2886 pObjectInfo->ParentObjectInformation,
2889 if( BooleanFlagOn( ulOptions, FILE_DELETE_ON_CLOSE))
2893 // Mark it for delete on close
2896 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2897 AFS_TRACE_LEVEL_VERBOSE,
2898 "AFSProcessOpen (%08lX) Setting PENDING_DELETE flag in DirEntry %p Name %wZ\n",
2901 &DirectoryCB->NameInformation.FileName);
2903 SetFlag( DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
2907 // Indicate the object is held
2910 SetFlag( pObjectInfo->Flags, AFS_OBJECT_HELD_IN_SERVICE);
2913 // Return the open result for this file
2916 Irp->IoStatus.Information = FILE_OPENED;
2918 *Fcb = pObjectInfo->Fcb;
2925 if( !NT_SUCCESS( ntStatus))
2928 // Decrement the open count on this Fcb
2931 lCount = InterlockedDecrement( &pObjectInfo->Fcb->OpenReferenceCount);
2933 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2934 AFS_TRACE_LEVEL_VERBOSE,
2935 "AFSProcessOpen Decrement2 count on Fcb %08lX Cnt %d\n",
2940 AFSReleaseResource( pObjectInfo->Fcb->Header.Resource);
2943 if( !NT_SUCCESS( ntStatus))
2946 if ( ulFileAccess > 0)
2949 stReleaseFileAccess.ProcessId = (ULONGLONG)PsGetCurrentProcessId();
2951 stReleaseFileAccess.FileAccess = ulFileAccess;
2953 stReleaseFileAccess.Identifier = (ULONGLONG)pFileObject;
2955 AFSProcessRequest( AFS_REQUEST_TYPE_RELEASE_FILE_ACCESS,
2956 AFS_REQUEST_FLAG_SYNCHRONOUS,
2958 &DirectoryCB->NameInformation.FileName,
2959 &pObjectInfo->FileId,
2960 (void *)&stReleaseFileAccess,
2961 sizeof( AFSFileAccessReleaseCB),
2976 // Fcb will be freed by AFSPrimaryVolumeWorker thread
2987 AFSProcessOverwriteSupersede( IN PDEVICE_OBJECT DeviceObject,
2989 IN AFSVolumeCB *VolumeCB,
2991 IN AFSDirectoryCB *ParentDirCB,
2992 IN AFSDirectoryCB *DirectoryCB,
2997 NTSTATUS ntStatus = STATUS_SUCCESS;
2998 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2999 PFILE_OBJECT pFileObject = NULL;
3000 LARGE_INTEGER liZero = {0,0};
3001 BOOLEAN bReleasePaging = FALSE, bReleaseFcb = FALSE;
3002 ULONG ulAttributes = 0;
3003 LARGE_INTEGER liTime;
3004 ULONG ulCreateDisposition = 0;
3005 BOOLEAN bAllocatedCcb = FALSE;
3006 PACCESS_MASK pDesiredAccess = NULL;
3007 USHORT usShareAccess;
3008 AFSObjectInfoCB *pParentObjectInfo = NULL;
3009 AFSObjectInfoCB *pObjectInfo = NULL;
3011 LARGE_INTEGER liSaveSize;
3012 LARGE_INTEGER liSaveVDL;
3013 LARGE_INTEGER liSaveAlloc;
3018 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
3020 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
3022 pFileObject = pIrpSp->FileObject;
3024 ulAttributes = pIrpSp->Parameters.Create.FileAttributes;
3026 ulCreateDisposition = (pIrpSp->Parameters.Create.Options >> 24) & 0x000000ff;
3028 if( BooleanFlagOn( VolumeCB->VolumeInformation.Characteristics, FILE_READ_ONLY_DEVICE))
3031 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3032 AFS_TRACE_LEVEL_ERROR,
3033 "AFSProcessOverwriteSupersede Request failed on %wZ due to read only volume\n",
3035 &DirectoryCB->NameInformation.FileName);
3037 try_return( ntStatus = STATUS_MEDIA_WRITE_PROTECTED);
3040 pParentObjectInfo = ParentDirCB->ObjectInformation;
3042 pObjectInfo = DirectoryCB->ObjectInformation;
3045 // Check if we should go and retrieve updated information for the node
3048 ntStatus = AFSValidateEntry( DirectoryCB,
3052 if( !NT_SUCCESS( ntStatus))
3055 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3056 AFS_TRACE_LEVEL_ERROR,
3057 "AFSProcessOverwriteSupersede (%08lX) Failed to validate entry %wZ Status %08lX\n",
3059 &DirectoryCB->NameInformation.FileName,
3062 try_return( ntStatus);
3066 // Be sure we have an Fcb for the object block
3069 ntStatus = AFSInitFcb( DirectoryCB);
3071 *Fcb = pObjectInfo->Fcb;
3073 if( !NT_SUCCESS( ntStatus))
3076 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3077 AFS_TRACE_LEVEL_ERROR,
3078 "AFSProcessOverwriteSupersede (%08lX) Failed to initialize fcb %wZ Status %08lX\n",
3080 &DirectoryCB->NameInformation.FileName,
3083 try_return( ntStatus);
3086 ntStatus = STATUS_SUCCESS;
3089 // Increment the open count on this Fcb.
3092 lCount = InterlockedIncrement( &pObjectInfo->Fcb->OpenReferenceCount);
3094 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3095 AFS_TRACE_LEVEL_VERBOSE,
3096 "AFSProcessOverwriteSupersede Increment2 count on Fcb %08lX Cnt %d\n",
3103 // Check access on the entry
3106 if( pObjectInfo->Fcb->OpenHandleCount > 0)
3109 ntStatus = IoCheckShareAccess( *pDesiredAccess,
3112 &pObjectInfo->Fcb->ShareAccess,
3115 if( !NT_SUCCESS( ntStatus))
3118 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3119 AFS_TRACE_LEVEL_ERROR,
3120 "AFSProcessOverwriteSupersede (%08lX) Access check failure %wZ Status %08lX\n",
3122 &DirectoryCB->NameInformation.FileName,
3125 try_return( ntStatus);
3130 // Before we actually truncate, check to see if the purge
3131 // is going to fail.
3134 if( !MmCanFileBeTruncated( &pObjectInfo->Fcb->NPFcb->SectionObjectPointers,
3138 ntStatus = STATUS_USER_MAPPED_FILE;
3140 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3141 AFS_TRACE_LEVEL_ERROR,
3142 "AFSProcessOverwriteSupersede (%08lX) File user mapped %wZ Status %08lX\n",
3144 &DirectoryCB->NameInformation.FileName,
3147 try_return( ntStatus);
3151 // Initialize the Ccb for the file.
3154 ntStatus = AFSInitCcb( Ccb);
3156 if( !NT_SUCCESS( ntStatus))
3159 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3160 AFS_TRACE_LEVEL_ERROR,
3161 "AFSProcessOverwriteSupersede (%08lX) Failed to initialize ccb %wZ Status %08lX\n",
3163 &DirectoryCB->NameInformation.FileName,
3166 try_return( ntStatus);
3169 bAllocatedCcb = TRUE;
3172 // Initialize the Ccb
3175 (*Ccb)->DirectoryCB = DirectoryCB;
3177 (*Ccb)->GrantedAccess = *pDesiredAccess;
3180 // Set the file length to zero
3183 AFSAcquireExcl( pObjectInfo->Fcb->Header.PagingIoResource,
3186 bReleasePaging = TRUE;
3188 liSaveSize = pObjectInfo->Fcb->Header.FileSize;
3189 liSaveAlloc = pObjectInfo->Fcb->Header.AllocationSize;
3190 liSaveVDL = pObjectInfo->Fcb->Header.ValidDataLength;
3192 pObjectInfo->Fcb->Header.FileSize.QuadPart = 0;
3193 pObjectInfo->Fcb->Header.ValidDataLength.QuadPart = 0;
3194 pObjectInfo->Fcb->Header.AllocationSize.QuadPart = 0;
3196 pObjectInfo->EndOfFile.QuadPart = 0;
3197 pObjectInfo->AllocationSize.QuadPart = 0;
3200 // Trim down the extents. We do this BEFORE telling the service
3201 // the file is truncated since there is a potential race between
3202 // a worker thread releasing extents and us trimming
3205 AFSTrimExtents( pObjectInfo->Fcb,
3206 &pObjectInfo->Fcb->Header.FileSize);
3208 KeQuerySystemTime( &pObjectInfo->ChangeTime);
3210 KeQuerySystemTime( &pObjectInfo->LastAccessTime);
3212 KeQuerySystemTime( &pObjectInfo->LastWriteTime);
3215 // Set the update flag accordingly
3218 SetFlag( pObjectInfo->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED |
3219 AFS_FCB_FLAG_UPDATE_CREATE_TIME |
3220 AFS_FCB_FLAG_UPDATE_CHANGE_TIME |
3221 AFS_FCB_FLAG_UPDATE_ACCESS_TIME |
3222 AFS_FCB_FLAG_UPDATE_LAST_WRITE_TIME);
3224 ntStatus = AFSUpdateFileInformation( &pParentObjectInfo->FileId,
3228 if( !NT_SUCCESS( ntStatus))
3231 pObjectInfo->Fcb->Header.ValidDataLength = liSaveVDL;
3232 pObjectInfo->Fcb->Header.FileSize = liSaveSize;
3233 pObjectInfo->Fcb->Header.AllocationSize = liSaveAlloc;
3234 pObjectInfo->Fcb->ObjectInformation->EndOfFile = liSaveSize;
3235 pObjectInfo->Fcb->ObjectInformation->AllocationSize = liSaveAlloc;
3237 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3238 AFS_TRACE_LEVEL_ERROR,
3239 "AFSProcessOverwriteSupersede (%08lX) Failed to update file information %wZ Status %08lX\n",
3241 &DirectoryCB->NameInformation.FileName,
3244 try_return( ntStatus);
3247 ulAttributes |= FILE_ATTRIBUTE_ARCHIVE;
3249 if( ulCreateDisposition == FILE_SUPERSEDE)
3252 pObjectInfo->FileAttributes = ulAttributes;
3258 pObjectInfo->FileAttributes |= ulAttributes;
3262 // Save off the access for the open
3265 if( pObjectInfo->Fcb->OpenHandleCount > 0)
3268 IoUpdateShareAccess( pFileObject,
3269 &pObjectInfo->Fcb->ShareAccess);
3278 IoSetShareAccess( *pDesiredAccess,
3281 &pObjectInfo->Fcb->ShareAccess);
3285 // Return the correct action
3288 if( ulCreateDisposition == FILE_SUPERSEDE)
3291 Irp->IoStatus.Information = FILE_SUPERSEDED;
3296 Irp->IoStatus.Information = FILE_OVERWRITTEN;
3299 lCount = InterlockedIncrement( &pObjectInfo->Fcb->OpenHandleCount);
3301 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3302 AFS_TRACE_LEVEL_VERBOSE,
3303 "AFSProcessOverwriteSupersede Increment handle count on Fcb %08lX Cnt %d\n",
3308 // Increment the open reference and handle on the parent node
3311 lCount = InterlockedIncrement( &pObjectInfo->ParentObjectInformation->Specific.Directory.ChildOpenHandleCount);
3313 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3314 AFS_TRACE_LEVEL_VERBOSE,
3315 "AFSProcessOverwriteSupersede Increment child open handle count on Parent object %08lX Cnt %d\n",
3316 pObjectInfo->ParentObjectInformation,
3319 lCount = InterlockedIncrement( &pObjectInfo->ParentObjectInformation->Specific.Directory.ChildOpenReferenceCount);
3321 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3322 AFS_TRACE_LEVEL_VERBOSE,
3323 "AFSProcessOverwriteSupersede Increment child open ref count on Parent object %08lX Cnt %d\n",
3324 pObjectInfo->ParentObjectInformation,
3327 AFSReleaseResource( pObjectInfo->Fcb->Header.Resource);
3329 bReleaseFcb = FALSE;
3331 *Fcb = pObjectInfo->Fcb;
3334 // Now that the Fcb->Resource has been dropped
3335 // we can call CcSetFileSizes. We are still holding
3336 // the PagingIoResource
3339 pFileObject->SectionObjectPointer = &pObjectInfo->Fcb->NPFcb->SectionObjectPointers;
3341 pFileObject->FsContext = (void *)pObjectInfo->Fcb;
3343 pFileObject->FsContext2 = (void *)*Ccb;
3345 CcSetFileSizes( pFileObject,
3346 (PCC_FILE_SIZES)&pObjectInfo->Fcb->Header.AllocationSize);
3353 AFSReleaseResource( pObjectInfo->Fcb->Header.PagingIoResource);
3359 if( !NT_SUCCESS( ntStatus))
3362 // Decrement the open count on this Fcb.
3365 lCount = InterlockedDecrement( &pObjectInfo->Fcb->OpenReferenceCount);
3367 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3368 AFS_TRACE_LEVEL_VERBOSE,
3369 "AFSProcessOverwriteSupersede Decrement2 count on Fcb %08lX Cnt %d\n",
3374 AFSReleaseResource( pObjectInfo->Fcb->Header.Resource);
3377 if( !NT_SUCCESS( ntStatus))
3390 // Fcb will be freed by AFSPrimaryVolumeWorker thread
3401 AFSControlDeviceCreate( IN PIRP Irp)
3404 NTSTATUS ntStatus = STATUS_SUCCESS;
3410 // For now, jsut let the open happen
3413 Irp->IoStatus.Information = FILE_OPENED;
3420 AFSOpenIOCtlFcb( IN PIRP Irp,
3422 IN AFSDirectoryCB *ParentDirCB,
3427 NTSTATUS ntStatus = STATUS_SUCCESS;
3428 PFILE_OBJECT pFileObject = NULL;
3429 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
3430 BOOLEAN bReleaseFcb = FALSE, bAllocatedCcb = FALSE;
3431 UNICODE_STRING uniFullFileName;
3432 AFSPIOCtlOpenCloseRequestCB stPIOCtlOpen;
3434 AFSObjectInfoCB *pParentObjectInfo = NULL;
3440 pFileObject = pIrpSp->FileObject;
3442 pParentObjectInfo = ParentDirCB->ObjectInformation;
3445 // If we haven't initialized the PIOCtl DirectoryCB for this directory then do it now
3448 if( pParentObjectInfo->Specific.Directory.PIOCtlDirectoryCB == NULL)
3451 ntStatus = AFSInitPIOCtlDirectoryCB( pParentObjectInfo);
3453 if( !NT_SUCCESS( ntStatus))
3456 try_return( ntStatus);
3461 // Allocate and initialize the Fcb for the file.
3464 ntStatus = AFSInitFcb( pParentObjectInfo->Specific.Directory.PIOCtlDirectoryCB);
3466 *Fcb = pParentObjectInfo->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb;
3468 if( !NT_SUCCESS( ntStatus))
3471 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3472 AFS_TRACE_LEVEL_ERROR,
3473 "AFSOpenIOCtlFcb (%08lX) Failed to initialize fcb Status %08lX\n",
3477 try_return( ntStatus);
3480 ntStatus = STATUS_SUCCESS;
3483 // Increment the open reference and handle on the node
3486 lCount = InterlockedIncrement( &(*Fcb)->OpenReferenceCount);
3488 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3489 AFS_TRACE_LEVEL_VERBOSE,
3490 "AFSOpenIOCtlFcb Increment count on Fcb %08lX Cnt %d\n",
3497 // Initialize the Ccb for the file.
3500 ntStatus = AFSInitCcb( Ccb);
3502 if( !NT_SUCCESS( ntStatus))
3505 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3506 AFS_TRACE_LEVEL_ERROR,
3507 "AFSOpenIOCtlFcb (%08lX) Failed to initialize ccb Status %08lX\n",
3511 try_return( ntStatus);
3514 bAllocatedCcb = TRUE;
3520 (*Ccb)->DirectoryCB = pParentObjectInfo->Specific.Directory.PIOCtlDirectoryCB;
3523 // Set the PIOCtl index
3526 (*Ccb)->RequestID = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.OpenRequestIndex);
3528 RtlZeroMemory( &stPIOCtlOpen,
3529 sizeof( AFSPIOCtlOpenCloseRequestCB));
3531 stPIOCtlOpen.RequestId = (*Ccb)->RequestID;
3533 stPIOCtlOpen.RootId = pParentObjectInfo->VolumeCB->ObjectInformation.FileId;
3535 RtlZeroMemory( &stFileID,
3536 sizeof( AFSFileID));
3539 // The parent directory FID of the node
3542 stFileID = pParentObjectInfo->FileId;
3545 // Issue the open request to the service
3548 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIOCTL_OPEN,
3549 AFS_REQUEST_FLAG_SYNCHRONOUS,
3553 (void *)&stPIOCtlOpen,
3554 sizeof( AFSPIOCtlOpenCloseRequestCB),
3558 if( !NT_SUCCESS( ntStatus))
3561 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3562 AFS_TRACE_LEVEL_ERROR,
3563 "AFSOpenIOCtlFcb (%08lX) Failed service open Status %08lX\n",
3567 try_return( ntStatus);
3571 // Reference the directory entry
3574 lCount = InterlockedIncrement( &((*Ccb)->DirectoryCB->OpenReferenceCount));
3576 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3577 AFS_TRACE_LEVEL_VERBOSE,
3578 "AFSOpenIOCtlFcb Increment count on %wZ DE %p Ccb %p Cnt %d\n",
3579 &(*Ccb)->DirectoryCB->NameInformation.FileName,
3580 (*Ccb)->DirectoryCB,
3585 // Increment the handle on the node
3588 lCount = InterlockedIncrement( &(*Fcb)->OpenHandleCount);
3590 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3591 AFS_TRACE_LEVEL_VERBOSE,
3592 "AFSOpenIOCtlFcb Increment handle count on Fcb %08lX Cnt %d\n",
3597 // Increment the open reference and handle on the parent node
3600 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenHandleCount);
3602 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3603 AFS_TRACE_LEVEL_VERBOSE,
3604 "AFSOpenIOCtlFcb Increment child open handle count on Parent object %08lX Cnt %d\n",
3608 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenReferenceCount);
3610 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3611 AFS_TRACE_LEVEL_VERBOSE,
3612 "AFSOpenIOCtlFcb Increment child open ref count on Parent object %08lX Cnt %d\n",
3617 // Return the open result for this file
3620 Irp->IoStatus.Information = FILE_OPENED;
3625 //Dereference the passed in parent since the returned dir entry
3626 // is already referenced
3629 lCount = InterlockedDecrement( &ParentDirCB->OpenReferenceCount);
3631 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
3632 AFS_TRACE_LEVEL_VERBOSE,
3633 "AFSOpenIOCtlFcb Decrement count on %wZ DE %p Ccb %p Cnt %d\n",
3634 &ParentDirCB->NameInformation.FileName,
3640 // If we created the Fcb we need to release the resources
3646 if( !NT_SUCCESS( ntStatus))
3649 // Decrement the open reference and handle on the node
3652 lCount = InterlockedDecrement( &(*Fcb)->OpenReferenceCount);
3654 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3655 AFS_TRACE_LEVEL_VERBOSE,
3656 "AFSOpenIOCtlFcb Decrement count on Fcb %08lX Cnt %d\n",
3661 AFSReleaseResource( &(*Fcb)->NPFcb->Resource);
3664 if( !NT_SUCCESS( ntStatus))
3677 // Fcb will be freed by AFSPrimaryVolumeWorker thread
3688 AFSOpenSpecialShareFcb( IN PIRP Irp,
3690 IN AFSDirectoryCB *DirectoryCB,
3695 NTSTATUS ntStatus = STATUS_SUCCESS;
3696 PFILE_OBJECT pFileObject = NULL;
3697 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
3698 BOOLEAN bReleaseFcb = FALSE, bAllocatedCcb = FALSE, bAllocateFcb = FALSE;
3699 AFSObjectInfoCB *pParentObjectInfo = NULL;
3700 AFSPipeOpenCloseRequestCB stPipeOpen;
3706 pFileObject = pIrpSp->FileObject;
3708 AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3709 AFS_TRACE_LEVEL_VERBOSE_2,
3710 "AFSOpenSpecialShareFcb (%08lX) Processing Share %wZ open\n",
3712 &DirectoryCB->NameInformation.FileName);
3714 pParentObjectInfo = DirectoryCB->ObjectInformation->ParentObjectInformation;
3716 if( DirectoryCB->ObjectInformation->Fcb == NULL)
3720 // Allocate and initialize the Fcb for the file.
3723 ntStatus = AFSInitFcb( DirectoryCB);
3725 *Fcb = DirectoryCB->ObjectInformation->Fcb;
3727 if( !NT_SUCCESS( ntStatus))
3730 AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3731 AFS_TRACE_LEVEL_ERROR,
3732 "AFSOpenSpecialShareFcb (%08lX) Failed to initialize fcb Status %08lX\n",
3736 try_return( ntStatus);
3739 if ( ntStatus != STATUS_REPARSE)
3742 bAllocateFcb = TRUE;
3745 ntStatus = STATUS_SUCCESS;
3750 *Fcb = DirectoryCB->ObjectInformation->Fcb;
3752 AFSAcquireExcl( &(*Fcb)->NPFcb->Resource,
3757 // Increment the open count on this Fcb
3760 lCount = InterlockedIncrement( &(*Fcb)->OpenReferenceCount);
3762 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3763 AFS_TRACE_LEVEL_VERBOSE,
3764 "AFSOpenSpecialShareFcb Increment count on Fcb %08lX Cnt %d\n",
3771 // Initialize the Ccb for the file.
3774 ntStatus = AFSInitCcb( Ccb);
3776 if( !NT_SUCCESS( ntStatus))
3779 AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3780 AFS_TRACE_LEVEL_ERROR,
3781 "AFSOpenSpecialShareFcb (%08lX) Failed to initialize ccb Status %08lX\n",
3785 try_return( ntStatus);
3788 bAllocatedCcb = TRUE;
3794 (*Ccb)->DirectoryCB = DirectoryCB;
3797 // Call the service to open the share
3800 (*Ccb)->RequestID = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.OpenRequestIndex);
3802 RtlZeroMemory( &stPipeOpen,
3803 sizeof( AFSPipeOpenCloseRequestCB));
3805 stPipeOpen.RequestId = (*Ccb)->RequestID;
3807 stPipeOpen.RootId = pParentObjectInfo->VolumeCB->ObjectInformation.FileId;
3810 // Issue the open request to the service
3813 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_OPEN,
3814 AFS_REQUEST_FLAG_SYNCHRONOUS,
3816 &DirectoryCB->NameInformation.FileName,
3818 (void *)&stPipeOpen,
3819 sizeof( AFSPipeOpenCloseRequestCB),
3823 if( !NT_SUCCESS( ntStatus))
3826 AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3827 AFS_TRACE_LEVEL_ERROR,
3828 "AFSOpenSpecialShareFcb (%08lX) Failed service open Status %08lX\n",
3832 try_return( ntStatus);
3835 lCount = InterlockedIncrement( &(*Fcb)->OpenHandleCount);
3837 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3838 AFS_TRACE_LEVEL_VERBOSE,
3839 "AFSOpenSpecialShareFcb Increment handle count on Fcb %08lX Cnt %d\n",
3844 // Increment the open reference and handle on the parent node
3847 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenHandleCount);
3849 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3850 AFS_TRACE_LEVEL_VERBOSE,
3851 "AFSOpenSpecialShareFcb Increment child open handle count on Parent object %08lX Cnt %d\n",
3855 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenReferenceCount);
3857 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3858 AFS_TRACE_LEVEL_VERBOSE,
3859 "AFSOpenSpecialShareFcb Increment child open ref count on Parent object %08lX Cnt %d\n",
3864 // Return the open result for this file
3867 Irp->IoStatus.Information = FILE_OPENED;
3874 if( !NT_SUCCESS( ntStatus))
3877 // Decrement the open count on this Fcb
3880 lCount = InterlockedDecrement( &(*Fcb)->OpenReferenceCount);
3882 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3883 AFS_TRACE_LEVEL_VERBOSE,
3884 "AFSOpenSpecialShareFcb Decrement count on Fcb %08lX Cnt %d\n",
3889 AFSReleaseResource( &(*Fcb)->NPFcb->Resource);
3892 if( !NT_SUCCESS( ntStatus))
3908 // Need to tear down this Fcb since it is not in the tree for the worker thread
3911 AFSAcquireExcl( &DirectoryCB->ObjectInformation->NonPagedInfo->ObjectInfoLock,
3914 AFSRemoveFcb( &DirectoryCB->ObjectInformation->Fcb);
3916 AFSReleaseResource( &DirectoryCB->ObjectInformation->NonPagedInfo->ObjectInfoLock);