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,
59 UNREFERENCED_PARAMETER(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 (%p) 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 (%p) 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, uniRootFileName, uniParsedFileName;
142 UNICODE_STRING uniSubstitutedPathName;
143 UNICODE_STRING uniRelativeName;
144 AFSNameArrayHdr *pNameArray = NULL;
145 AFSVolumeCB *pVolumeCB = NULL;
146 LONG VolumeReferenceReason = AFS_VOLUME_REFERENCE_INVALID;
147 AFSVolumeCB *pNewVolumeCB = NULL;
148 LONG NewVolumeReferenceReason = AFS_VOLUME_REFERENCE_INVALID;
149 AFSDirectoryCB *pParentDirectoryCB = NULL, *pDirectoryCB = NULL;
150 AFSDirectoryCB *pNewParentDirectoryCB = NULL;
151 BOOLEAN bReleaseParentDir = FALSE, bReleaseDir = FALSE;
152 ULONG ulParseFlags = 0;
153 GUID stAuthGroup = {0};
154 ULONG ulNameProcessingFlags = 0;
155 BOOLEAN bOpenedReparsePoint = FALSE;
161 pIrpSp = IoGetCurrentIrpStackLocation( Irp);
162 pDeviceExt = (AFSDeviceExt *)DeviceObject->DeviceExtension;
163 ulCreateDisposition = (pIrpSp->Parameters.Create.Options >> 24) & 0x000000ff;
164 ulOptions = pIrpSp->Parameters.Create.Options;
165 bNoIntermediateBuffering = BooleanFlagOn( ulOptions, FILE_NO_INTERMEDIATE_BUFFERING);
166 bOpenTargetDirectory = BooleanFlagOn( pIrpSp->Flags, SL_OPEN_TARGET_DIRECTORY);
167 pFileObject = pIrpSp->FileObject;
168 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
170 uniFileName.Length = uniFileName.MaximumLength = 0;
171 uniFileName.Buffer = NULL;
173 uniRootFileName.Length = uniRootFileName.MaximumLength = 0;
174 uniRootFileName.Buffer = NULL;
176 uniParsedFileName.Length = uniParsedFileName.MaximumLength = 0;
177 uniParsedFileName.Buffer = NULL;
179 uniSubstitutedPathName.Buffer = NULL;
180 uniSubstitutedPathName.Length = 0;
182 uniRelativeName.Buffer = NULL;
183 uniRelativeName.Length = 0;
185 if( AFSGlobalRoot == NULL)
187 try_return( ntStatus = STATUS_DEVICE_NOT_READY);
190 RtlZeroMemory( &stAuthGroup,
193 AFSRetrieveAuthGroupFnc( (ULONGLONG)PsGetCurrentProcessId(),
194 (ULONGLONG)PsGetCurrentThreadId(),
198 // If we are in shutdown mode then fail the request
201 if( BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
204 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
205 AFS_TRACE_LEVEL_WARNING,
206 "AFSCommonCreate (%p) Open request after shutdown\n",
209 try_return( ntStatus = STATUS_TOO_LATE);
212 if( !BooleanFlagOn( AFSGlobalRoot->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
215 ntStatus = AFSEnumerateGlobalRoot( &stAuthGroup);
217 if( !NT_SUCCESS( ntStatus))
220 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
221 AFS_TRACE_LEVEL_ERROR,
222 "AFSCommonCreate Failed to enumerate global root Status %08lX\n",
225 try_return( ntStatus);
230 // Go and parse the name for processing.
231 // If ulParseFlags is returned with AFS_PARSE_FLAG_FREE_FILE_BUFFER set,
232 // then we are responsible for releasing the uniRootFileName.Buffer.
235 ntStatus = AFSParseName( Irp,
245 if( !NT_SUCCESS( ntStatus))
248 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
249 uniFileName.Length > 0 ? AFS_TRACE_LEVEL_ERROR : AFS_TRACE_LEVEL_VERBOSE,
250 "AFSCommonCreate (%p) Failed to parse name \"%wZ\" Status %08lX\n",
255 try_return( ntStatus);
259 // Check for STATUS_REPARSE
262 if( ntStatus == STATUS_REPARSE)
266 // Update the information and return
269 Irp->IoStatus.Information = IO_REPARSE;
271 try_return( ntStatus);
274 if ( pParentDirectoryCB != NULL)
277 bReleaseParentDir = TRUE;
281 // If the returned volume cb is NULL then we are dealing with the \\Server\GlobalRoot
285 if( pVolumeCB == NULL)
289 // Remove any leading or trailing slashes
292 if( uniFileName.Length >= sizeof( WCHAR) &&
293 uniFileName.Buffer[ (uniFileName.Length/sizeof( WCHAR)) - 1] == L'\\')
296 uniFileName.Length -= sizeof( WCHAR);
299 if( uniFileName.Length >= sizeof( WCHAR) &&
300 uniFileName.Buffer[ 0] == L'\\')
303 uniFileName.Buffer = &uniFileName.Buffer[ 1];
305 uniFileName.Length -= sizeof( WCHAR);
309 // If there is a remaining portion returned for this request then
310 // check if it is for the PIOCtl interface
313 if( uniFileName.Length > 0)
317 // We don't accept any other opens off of the AFS Root
320 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
323 // If this is an open on "_._AFS_IOCTL_._" then perform handling on it accordingly
326 if( RtlCompareUnicodeString( &AFSPIOCtlName,
332 // AFSOpenIOCtlFcb does not free a DirOpenReferenceCount for
333 // AFSGlobalRoot->DirectoryCB.
336 ntStatus = AFSOpenIOCtlFcb( Irp,
338 AFSGlobalRoot->DirectoryCB,
342 if( !NT_SUCCESS( ntStatus))
345 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
346 AFS_TRACE_LEVEL_ERROR,
347 "AFSCommonCreate Failed to open root IOCtl Fcb Status %08lX\n",
351 else if( pParentDirectoryCB != NULL)
354 if( pParentDirectoryCB->ObjectInformation->FileType == AFS_FILE_TYPE_SPECIAL_SHARE_NAME)
357 ntStatus = AFSOpenSpecialShareFcb( Irp,
363 if( !NT_SUCCESS( ntStatus))
366 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
367 AFS_TRACE_LEVEL_ERROR,
368 "AFSCommonCreate Failed to open special share Fcb Status %08lX\n",
374 try_return( ntStatus);
377 ntStatus = AFSOpenAFSRoot( Irp,
381 if( !NT_SUCCESS( ntStatus))
384 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
385 AFS_TRACE_LEVEL_ERROR,
386 "AFSCommonCreate Failed to open root Status %08lX\n",
390 try_return( ntStatus);
394 // We have a reference on the root volume
397 VolumeReferenceReason = AFS_VOLUME_REFERENCE_PARSE_NAME;
399 bReleaseVolume = TRUE;
402 // Attempt to locate the node in the name tree if this is not a target
403 // open and the target is not the root
406 uniComponentName.Length = 0;
407 uniComponentName.Buffer = NULL;
409 if( uniFileName.Length > sizeof( WCHAR) ||
410 uniFileName.Buffer[ 0] != L'\\')
413 if( !AFSValidNameFormat( &uniFileName))
416 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
418 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
419 AFS_TRACE_LEVEL_VERBOSE,
420 "AFSCommonCreate (%p) Invalid name %wZ Status %08lX\n",
425 try_return( ntStatus);
429 // Opening a reparse point directly?
432 ulNameProcessingFlags = AFS_LOCATE_FLAGS_SUBSTITUTE_NAME;
434 if( BooleanFlagOn( ulOptions, FILE_OPEN_REPARSE_POINT))
436 ulNameProcessingFlags |= (AFS_LOCATE_FLAGS_NO_MP_TARGET_EVAL |
437 AFS_LOCATE_FLAGS_NO_SL_TARGET_EVAL |
438 AFS_LOCATE_FLAGS_NO_DFS_LINK_EVAL);
441 uniSubstitutedPathName = uniRootFileName;
443 ntStatus = AFSLocateNameEntry( &stAuthGroup,
448 ulNameProcessingFlags,
452 &NewVolumeReferenceReason,
453 &pNewParentDirectoryCB,
458 // AFSLocateNameEntry returns pNewVolumeCB with a reference held
459 // even if pVolumeCB == pNewVolumeCB. It is always safe to release
460 // the reference on pVolumeCB that was held prior to the call.
461 // If pVolumeCB == pNewVolumeCB, the reference from AFSLocateNameEntry
462 // will be released second.
465 lCount = AFSVolumeDecrement( pVolumeCB,
466 VolumeReferenceReason);
468 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
469 AFS_TRACE_LEVEL_VERBOSE,
470 "AFSCommonCreate Decrement count on volume %p Reason %u Cnt %d\n",
472 VolumeReferenceReason,
475 pVolumeCB = pNewVolumeCB;
479 VolumeReferenceReason = NewVolumeReferenceReason;
481 NewVolumeReferenceReason = AFS_VOLUME_REFERENCE_INVALID;
483 bReleaseVolume = (pVolumeCB != NULL);
486 // AFSLocateNameEntry does not alter the reference count of
487 // pParentDirectoryCB and it returns pNewParentDirectoryCB with
491 if ( bReleaseParentDir)
494 lCount = InterlockedDecrement( &pParentDirectoryCB->DirOpenReferenceCount);
496 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
497 AFS_TRACE_LEVEL_VERBOSE,
498 "AFSCommonCreate DecrementX count on %wZ DE %p Ccb %p Cnt %d\n",
499 &pParentDirectoryCB->NameInformation.FileName,
505 pParentDirectoryCB = pNewParentDirectoryCB;
507 pNewParentDirectoryCB = NULL;
509 bReleaseParentDir = (pParentDirectoryCB != NULL);
517 if( !NT_SUCCESS( ntStatus) &&
518 ntStatus != STATUS_OBJECT_NAME_NOT_FOUND)
521 if ( uniSubstitutedPathName.Buffer == uniRootFileName.Buffer)
523 uniSubstitutedPathName.Buffer = NULL;
527 // AFSLocateNameEntry released the Parent while walking the
531 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
532 AFS_TRACE_LEVEL_VERBOSE,
533 "AFSCommonCreate (%p) Failed to locate name entry for %wZ Status %08lX\n",
538 try_return( ntStatus);
542 // Check for STATUS_REPARSE
545 if( ntStatus == STATUS_REPARSE)
548 uniSubstitutedPathName.Buffer = NULL;
551 // Update the information and return
554 Irp->IoStatus.Information = IO_REPARSE;
556 try_return( ntStatus);
560 // If we re-allocated the name, then update our substitute name
563 if( uniSubstitutedPathName.Buffer != uniRootFileName.Buffer)
566 uniSubstitutedPathName = uniRootFileName;
571 uniSubstitutedPathName.Buffer = NULL;
575 // Check for a symlink access
578 if( ntStatus == STATUS_OBJECT_NAME_NOT_FOUND &&
579 pParentDirectoryCB != NULL)
583 // pParentDirectoryCB DirOpenReferenceCount is still held
586 UNICODE_STRING uniFinalComponent;
588 uniFinalComponent.Length = 0;
589 uniFinalComponent.MaximumLength = 0;
590 uniFinalComponent.Buffer = NULL;
592 AFSRetrieveFinalComponent( &uniFileName,
595 ntStatus = AFSCheckSymlinkAccess( pParentDirectoryCB,
598 if( !NT_SUCCESS( ntStatus) &&
599 ntStatus != STATUS_OBJECT_NAME_NOT_FOUND)
602 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
603 AFS_TRACE_LEVEL_VERBOSE,
604 "AFSCommonCreate (%p) Failing access to symlink %wZ Status %08lX\n",
609 try_return( ntStatus);
615 // If we have no parent then this is a root open, be sure there is a directory entry
619 else if( pParentDirectoryCB == NULL &&
620 pDirectoryCB == NULL)
623 pDirectoryCB = pVolumeCB->DirectoryCB;
625 lCount = InterlockedIncrement( &pDirectoryCB->DirOpenReferenceCount);
627 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
628 AFS_TRACE_LEVEL_VERBOSE,
629 "AFSCommonCreate Increment0 count on %wZ DE %p Ccb %p Cnt %d\n",
630 &pDirectoryCB->NameInformation.FileName,
638 if( bOpenTargetDirectory)
642 // If we have a directory cb for the entry then dereference it and reference the parent
645 if( pDirectoryCB != NULL)
648 if ( !bReleaseParentDir)
652 // Perform in this order to prevent thrashing
655 lCount = InterlockedIncrement( &pParentDirectoryCB->DirOpenReferenceCount);
657 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
658 AFS_TRACE_LEVEL_VERBOSE,
659 "AFSCommonCreate Increment1 count on %wZ DE %p Ccb %p Cnt %d\n",
660 &pParentDirectoryCB->NameInformation.FileName,
665 bReleaseParentDir = TRUE;
669 // Do NOT decrement the reference count on the pDirectoryCB yet.
670 // The BackupEntry below might drop the count to zero leaving
671 // the entry subject to being deleted and we need some of the
672 // contents during later processing
675 AFSBackupEntry( pNameArray);
679 // OK, open the target directory
682 if( uniComponentName.Length == 0)
684 AFSRetrieveFinalComponent( &uniFileName,
688 ntStatus = AFSOpenTargetDirectory( Irp,
696 if( !NT_SUCCESS( ntStatus))
699 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
700 AFS_TRACE_LEVEL_ERROR,
701 "AFSCommonCreate Failed to open target directory %wZ Status %08lX\n",
702 &pParentDirectoryCB->NameInformation.FileName,
706 try_return( ntStatus);
709 if ( BooleanFlagOn( ulOptions, FILE_OPEN_REPARSE_POINT))
712 if( pDirectoryCB == NULL ||
713 !BooleanFlagOn( pDirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_REPARSE_POINT))
715 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
716 AFS_TRACE_LEVEL_VERBOSE,
717 "AFSCommonCreate (%p) Reparse open request but attribute not set for %wZ DirCB %p Type %08lX\n",
721 pDirectoryCB ? pDirectoryCB->ObjectInformation->FileType : 0);
725 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
726 AFS_TRACE_LEVEL_VERBOSE,
727 "AFSCommonCreate (%p) Opening as reparse point %wZ Type %08lX\n",
730 pDirectoryCB->ObjectInformation->FileType);
732 bOpenedReparsePoint = TRUE;
737 // Based on the options passed in, process the file accordingly.
740 if( ulCreateDisposition == FILE_CREATE ||
741 ( ( ulCreateDisposition == FILE_OPEN_IF ||
742 ulCreateDisposition == FILE_OVERWRITE_IF) &&
743 pDirectoryCB == NULL))
746 if( uniComponentName.Length == 0 ||
747 pDirectoryCB != NULL)
751 // We traversed the entire path so we found each entry,
752 // fail with collision
755 if( pDirectoryCB != NULL)
758 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
759 AFS_TRACE_LEVEL_VERBOSE,
760 "AFSCommonCreate Object name collision on create of %wZ Status %08lX\n",
761 &pDirectoryCB->NameInformation.FileName,
767 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
768 AFS_TRACE_LEVEL_VERBOSE,
769 "AFSCommonCreate Object name collision on create Status %08lX\n",
773 try_return( ntStatus = STATUS_OBJECT_NAME_COLLISION);
777 // OK, go and create the node
780 ntStatus = AFSProcessCreate( Irp,
790 if( !NT_SUCCESS( ntStatus))
793 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
794 AFS_TRACE_LEVEL_ERROR,
795 "AFSCommonCreate Failed to create of %wZ in directory %wZ Status %08lX\n",
797 &pParentDirectoryCB->NameInformation.FileName,
801 try_return( ntStatus);
805 // We should not have an extra component except for PIOCtl opens
808 if( uniComponentName.Length > 0)
812 // If this is an open on "_._AFS_IOCTL_._" then perform handling on it accordingly
815 if( RtlCompareUnicodeString( &AFSPIOCtlName,
821 // AFSOpenIOCtlFcb does not free a DirOpenReferenceCount for
822 // pParentDirectoryCB.
825 ntStatus = AFSOpenIOCtlFcb( Irp,
831 if( !NT_SUCCESS( ntStatus))
834 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
835 AFS_TRACE_LEVEL_ERROR,
836 "AFSCommonCreate Failed to IOCtl open on %wZ Status %08lX\n",
844 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
845 AFS_TRACE_LEVEL_VERBOSE,
846 "AFSCommonCreate (%p) File %wZ name not found\n",
850 ntStatus = STATUS_OBJECT_NAME_NOT_FOUND;
853 try_return( ntStatus);
857 // For root opens the parent will be NULL
860 if( pParentDirectoryCB == NULL)
864 // Check for the delete on close flag for the root
867 if( BooleanFlagOn( ulOptions, FILE_DELETE_ON_CLOSE ))
870 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
871 AFS_TRACE_LEVEL_ERROR,
872 "AFSCommonCreate (%p) Attempt to open root as delete on close\n",
875 try_return( ntStatus = STATUS_CANNOT_DELETE);
879 // If this is the target directory, then bail
882 if( bOpenTargetDirectory)
885 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
886 AFS_TRACE_LEVEL_ERROR,
887 "AFSCommonCreate (%p) Attempt to open root as target directory\n",
890 try_return( ntStatus = STATUS_INVALID_PARAMETER);
894 // Go and open the root of the volume
897 ntStatus = AFSOpenRoot( Irp,
903 if( !NT_SUCCESS( ntStatus))
906 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
907 AFS_TRACE_LEVEL_ERROR,
908 "AFSCommonCreate Failed to open volume root %08lX-%08lX Status %08lX\n",
909 pVolumeCB->ObjectInformation.FileId.Cell,
910 pVolumeCB->ObjectInformation.FileId.Volume,
914 try_return( ntStatus);
918 // At this point if we have no pDirectoryCB it was not found.
921 if( pDirectoryCB == NULL)
924 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
925 AFS_TRACE_LEVEL_ERROR,
926 "AFSCommonCreate Failing access to %wZ Name not found\n",
929 try_return( ntStatus = STATUS_OBJECT_NAME_NOT_FOUND);
932 if( ulCreateDisposition == FILE_OVERWRITE ||
933 ulCreateDisposition == FILE_SUPERSEDE ||
934 ulCreateDisposition == FILE_OVERWRITE_IF)
938 // Go process a file for overwrite or supersede.
941 ntStatus = AFSProcessOverwriteSupersede( DeviceObject,
950 if( !NT_SUCCESS( ntStatus))
953 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
954 AFS_TRACE_LEVEL_ERROR,
955 "AFSCommonCreate Failed overwrite/supersede on %wZ Status %08lX\n",
956 &pDirectoryCB->NameInformation.FileName,
960 try_return( ntStatus);
964 // Trying to open the file
967 ntStatus = AFSProcessOpen( Irp,
975 if( !NT_SUCCESS( ntStatus))
978 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
979 AFS_TRACE_LEVEL_ERROR,
980 "AFSCommonCreate Failed open on %wZ Status %08lX\n",
981 &pDirectoryCB->NameInformation.FileName,
987 if( NT_SUCCESS( ntStatus) &&
988 ntStatus != STATUS_REPARSE)
994 AFSAcquireExcl( &pCcb->NPCcb->CcbLock,
997 RtlCopyMemory( &pCcb->AuthGroup,
1002 // If we have a substitute name, then use it
1005 if( uniSubstitutedPathName.Buffer != NULL)
1008 pCcb->FullFileName = uniSubstitutedPathName;
1010 SetFlag( pCcb->Flags, CCB_FLAG_FREE_FULL_PATHNAME);
1012 ClearFlag( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER);
1017 pCcb->FullFileName = uniRootFileName;
1019 if( BooleanFlagOn( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER))
1022 SetFlag( pCcb->Flags, CCB_FLAG_FREE_FULL_PATHNAME);
1024 ClearFlag( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER);
1028 if( bOpenedReparsePoint)
1030 SetFlag( pCcb->Flags, CCB_FLAG_MASK_OPENED_REPARSE_POINT);
1033 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1034 AFS_TRACE_LEVEL_VERBOSE,
1035 "AFSCommonCreate Count on %wZ DE %p Ccb %p Cnt %d\n",
1036 &pCcb->DirectoryCB->NameInformation.FileName,
1039 lCount = pCcb->DirectoryCB->DirOpenReferenceCount);
1041 ASSERT( lCount >= 0);
1043 pCcb->CurrentDirIndex = 0;
1045 if( !BooleanFlagOn( ulParseFlags, AFS_PARSE_FLAG_ROOT_ACCESS))
1048 SetFlag( pCcb->Flags, CCB_FLAG_RETURN_RELATIVE_ENTRIES);
1052 // Save off the name array for this instance
1055 pCcb->NameArray = pNameArray;
1059 AFSReleaseResource( &pCcb->NPCcb->CcbLock);
1063 // If we make it here then init the FO for the request.
1066 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1067 AFS_TRACE_LEVEL_VERBOSE_2,
1068 "AFSCommonCreate (%p) FileObject %p FsContext %p FsContext2 %p\n",
1074 pFileObject->FsContext = (void *)pFcb;
1076 pFileObject->FsContext2 = (void *)pCcb;
1081 ASSERT( pFcb->OpenHandleCount > 0);
1083 ClearFlag( pFcb->Flags, AFS_FCB_FILE_CLOSED);
1086 // For files perform additional processing
1089 switch( pFcb->Header.NodeTypeCode)
1096 pFileObject->SectionObjectPointer = &pFcb->NPFcb->SectionObjectPointers;
1101 // If the user did not request nobuffering then mark the FO as cacheable
1104 if( bNoIntermediateBuffering)
1107 pFileObject->Flags |= FO_NO_INTERMEDIATE_BUFFERING;
1112 pFileObject->Flags |= FO_CACHE_SUPPORTED;
1116 // If the file was opened for execution then we need to set the bit in the FO
1119 if( BooleanFlagOn( *pDesiredAccess,
1123 SetFlag( pFileObject->Flags, FO_FILE_FAST_IO_READ);
1127 // Update the last access time
1130 KeQuerySystemTime( &pFcb->ObjectInformation->LastAccessTime);
1141 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1142 AFS_TRACE_LEVEL_ERROR,
1143 "AFSCommonCreate (%p) Returning with NULL Fcb FileObject %p FsContext %p FsContext2 %p\n",
1152 if( NT_SUCCESS( ntStatus) &&
1153 ntStatus == STATUS_REPARSE)
1156 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1157 AFS_TRACE_LEVEL_ERROR,
1158 "AFSCommonCreate (%p) STATUS_REPARSE FileObject %p FsContext %p FsContext2 %p\n",
1166 // Free up the sub name if we have one
1169 if( uniSubstitutedPathName.Buffer != NULL)
1172 AFSExFreePoolWithTag( uniSubstitutedPathName.Buffer, 0);
1174 ClearFlag( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER);
1179 // Free up the name array ...
1182 if( pNameArray != NULL)
1185 AFSFreeNameArray( pNameArray);
1188 if( BooleanFlagOn( ulParseFlags, AFS_PARSE_FLAG_FREE_FILE_BUFFER))
1191 AFSExFreePoolWithTag( uniRootFileName.Buffer, 0);
1197 lCount = AFSVolumeDecrement( pVolumeCB,
1198 VolumeReferenceReason);
1200 AFSDbgLogMsg( AFS_SUBSYSTEM_VOLUME_REF_COUNTING,
1201 AFS_TRACE_LEVEL_VERBOSE,
1202 "AFSCommonCreate Decrement count on Volume %08lX Reason %u Cnt %d\n",
1204 VolumeReferenceReason,
1212 // Release the reference from AFSLocateNameEntry
1215 lCount = InterlockedDecrement( &pDirectoryCB->DirOpenReferenceCount);
1217 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1218 AFS_TRACE_LEVEL_VERBOSE,
1219 "AFSCommonCreate Decrement count on %wZ DE %p Ccb %p Cnt %d\n",
1220 &pDirectoryCB->NameInformation.FileName,
1225 ASSERT( lCount >= 0);
1228 if ( bReleaseParentDir)
1232 // Release the reference from AFSLocateNameEntry
1235 lCount = InterlockedDecrement( &pParentDirectoryCB->DirOpenReferenceCount);
1237 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1238 AFS_TRACE_LEVEL_VERBOSE,
1239 "AFSCommonCreate Decrement count on %wZ DE %p Ccb %p Cnt %d\n",
1240 &pParentDirectoryCB->NameInformation.FileName,
1245 ASSERT( lCount >= 0);
1249 // Setup the Irp for completion, the Information has been set previously
1252 Irp->IoStatus.Status = ntStatus;
1259 AFSOpenAFSRoot( IN PIRP Irp,
1264 NTSTATUS ntStatus = STATUS_SUCCESS;
1271 // Initialize the Ccb for the file.
1274 ntStatus = AFSInitCcb( Ccb,
1275 AFSGlobalRoot->DirectoryCB,
1279 if( !NT_SUCCESS( ntStatus))
1282 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1283 AFS_TRACE_LEVEL_ERROR,
1284 "AFSOpenAFSRoot (%p) Failed to allocate Ccb\n",
1287 try_return( ntStatus);
1291 // Increment the open count on this Fcb
1294 lCount = InterlockedIncrement( &AFSGlobalRoot->RootFcb->OpenReferenceCount);
1296 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1297 AFS_TRACE_LEVEL_VERBOSE,
1298 "AFSOpenAFSRoot Increment count on Fcb %p Cnt %d\n",
1299 AFSGlobalRoot->RootFcb,
1302 lCount = InterlockedIncrement( &AFSGlobalRoot->RootFcb->OpenHandleCount);
1304 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1305 AFS_TRACE_LEVEL_VERBOSE,
1306 "AFSOpenAFSRoot Increment handle count on Fcb %p Cnt %d\n",
1307 AFSGlobalRoot->RootFcb,
1310 *Fcb = AFSGlobalRoot->RootFcb;
1313 // Return the open result for this file
1316 Irp->IoStatus.Information = FILE_OPENED;
1327 AFSOpenRoot( IN PIRP Irp,
1328 IN AFSVolumeCB *VolumeCB,
1330 OUT AFSFcb **RootFcb,
1334 NTSTATUS ntStatus = STATUS_SUCCESS;
1335 PFILE_OBJECT pFileObject = NULL;
1336 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1337 PACCESS_MASK pDesiredAccess = NULL;
1338 USHORT usShareAccess;
1340 BOOLEAN bAllocatedCcb = FALSE;
1341 BOOLEAN bReleaseFcb = FALSE;
1342 AFSFileOpenCB stOpenCB;
1343 AFSFileOpenResultCB stOpenResultCB;
1344 ULONG ulResultLen = 0;
1350 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
1351 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
1352 ulOptions = pIrpSp->Parameters.Create.Options;
1354 pFileObject = pIrpSp->FileObject;
1356 if( BooleanFlagOn( ulOptions, FILE_NON_DIRECTORY_FILE))
1359 ntStatus = STATUS_FILE_IS_A_DIRECTORY;
1361 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1362 AFS_TRACE_LEVEL_ERROR,
1363 "AFSOpenRoot (%p) Attempt to open root as file Status %08lX\n",
1367 try_return( ntStatus);
1371 // Check if we should go and retrieve updated information for the node
1374 ntStatus = AFSValidateEntry( VolumeCB->DirectoryCB,
1379 if( !NT_SUCCESS( ntStatus))
1382 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1383 AFS_TRACE_LEVEL_ERROR,
1384 "AFSOpenRoot (%p) Failed to validate root entry Status %08lX\n",
1388 try_return( ntStatus);
1392 // Check with the service that we can open the file
1395 RtlZeroMemory( &stOpenCB,
1396 sizeof( AFSFileOpenCB));
1398 stOpenCB.DesiredAccess = *pDesiredAccess;
1400 stOpenCB.ShareAccess = usShareAccess;
1402 stOpenResultCB.GrantedAccess = 0;
1404 ulResultLen = sizeof( AFSFileOpenResultCB);
1406 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_OPEN_FILE,
1407 AFS_REQUEST_FLAG_SYNCHRONOUS | AFS_REQUEST_FLAG_HOLD_FID,
1410 &VolumeCB->ObjectInformation.FileId,
1412 sizeof( AFSFileOpenCB),
1413 (void *)&stOpenResultCB,
1416 if( !NT_SUCCESS( ntStatus))
1419 UNICODE_STRING uniGUID;
1422 uniGUID.MaximumLength = 0;
1423 uniGUID.Buffer = NULL;
1425 if( AuthGroup != NULL)
1427 RtlStringFromGUID( *AuthGroup,
1431 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1432 AFS_TRACE_LEVEL_ERROR,
1433 "AFSOpenRoot (%p) Failed open in service volume %08lX-%08lX AuthGroup %wZ Status %08lX\n",
1435 VolumeCB->ObjectInformation.FileId.Cell,
1436 VolumeCB->ObjectInformation.FileId.Volume,
1440 if( AuthGroup != NULL)
1442 RtlFreeUnicodeString( &uniGUID);
1445 try_return( ntStatus);
1449 // If the entry is not initialized then do it now
1452 if( !BooleanFlagOn( VolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
1455 AFSAcquireExcl( VolumeCB->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock,
1458 if( !BooleanFlagOn( VolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED))
1461 ntStatus = AFSEnumerateDirectory( AuthGroup,
1462 &VolumeCB->ObjectInformation,
1465 if( !NT_SUCCESS( ntStatus))
1468 AFSReleaseResource( VolumeCB->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
1470 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1471 AFS_TRACE_LEVEL_ERROR,
1472 "AFSOpenRoot (%p) Failed to enumerate directory Status %08lX\n",
1476 try_return( ntStatus);
1479 SetFlag( VolumeCB->ObjectInformation.Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED);
1482 AFSReleaseResource( VolumeCB->ObjectInformation.Specific.Directory.DirectoryNodeHdr.TreeLock);
1486 // If the root fcb has been initialized then check access otherwise
1487 // init the volume fcb
1490 ntStatus = AFSInitRootFcb( (ULONGLONG)PsGetCurrentProcessId(),
1493 if( !NT_SUCCESS( ntStatus))
1496 try_return( ntStatus);
1499 lCount = InterlockedIncrement( &VolumeCB->RootFcb->OpenReferenceCount);
1501 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1502 AFS_TRACE_LEVEL_VERBOSE,
1503 "AFSOpenRoot Increment count on Fcb %p Cnt %d\n",
1510 // If there are current opens on the Fcb, check the access.
1513 if( VolumeCB->RootFcb->OpenHandleCount > 0)
1516 ntStatus = IoCheckShareAccess( *pDesiredAccess,
1519 &VolumeCB->RootFcb->ShareAccess,
1522 if( !NT_SUCCESS( ntStatus))
1525 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1526 AFS_TRACE_LEVEL_ERROR,
1527 "AFSOpenRoot (%p) Access check failure Status %08lX\n",
1531 try_return( ntStatus);
1536 // Initialize the Ccb for the file.
1539 ntStatus = AFSInitCcb( Ccb,
1540 VolumeCB->DirectoryCB,
1544 if( !NT_SUCCESS( ntStatus))
1547 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1548 AFS_TRACE_LEVEL_ERROR,
1549 "AFSOpenRoot (%p) Failed to allocate Ccb Status %08lX\n",
1553 try_return( ntStatus);
1556 bAllocatedCcb = TRUE;
1559 // OK, update the share access on the fileobject
1562 if( VolumeCB->RootFcb->OpenHandleCount > 0)
1565 IoUpdateShareAccess( pFileObject,
1566 &VolumeCB->RootFcb->ShareAccess);
1575 IoSetShareAccess( *pDesiredAccess,
1578 &VolumeCB->RootFcb->ShareAccess);
1582 // Increment the open count on this Fcb
1585 lCount = InterlockedIncrement( &VolumeCB->RootFcb->OpenHandleCount);
1587 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1588 AFS_TRACE_LEVEL_VERBOSE,
1589 "AFSOpenRoot Increment handle count on Fcb %p Cnt %d\n",
1594 // Indicate the object is held
1597 SetFlag( VolumeCB->ObjectInformation.Flags, AFS_OBJECT_HELD_IN_SERVICE);
1600 // Return the open result for this file
1603 Irp->IoStatus.Information = FILE_OPENED;
1605 *RootFcb = VolumeCB->RootFcb;
1611 if ( !NT_SUCCESS( ntStatus))
1614 lCount = InterlockedDecrement( &VolumeCB->RootFcb->OpenReferenceCount);
1616 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1617 AFS_TRACE_LEVEL_VERBOSE,
1618 "AFSOpenRoot Decrement count on Fcb %p Cnt %d\n",
1623 AFSReleaseResource( VolumeCB->RootFcb->Header.Resource);
1626 if( !NT_SUCCESS( ntStatus))
1638 Irp->IoStatus.Information = 0;
1646 AFSProcessCreate( IN PIRP Irp,
1648 IN AFSVolumeCB *VolumeCB,
1649 IN AFSDirectoryCB *ParentDirCB,
1650 IN PUNICODE_STRING FileName,
1651 IN PUNICODE_STRING ComponentName,
1652 IN PUNICODE_STRING FullFileName,
1657 NTSTATUS ntStatus = STATUS_SUCCESS;
1658 PFILE_OBJECT pFileObject = NULL;
1659 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1660 ULONG ulOptions = 0;
1661 ULONG ulAttributes = 0;
1662 BOOLEAN bFileCreated = FALSE, bReleaseFcb = FALSE, bAllocatedCcb = FALSE;
1663 PACCESS_MASK pDesiredAccess = NULL;
1664 USHORT usShareAccess;
1665 AFSDirectoryCB *pDirEntry = NULL;
1666 AFSObjectInfoCB *pParentObjectInfo = NULL;
1667 AFSObjectInfoCB *pObjectInfo = NULL;
1673 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
1674 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
1676 pFileObject = pIrpSp->FileObject;
1679 // Extract out the options
1682 ulOptions = pIrpSp->Parameters.Create.Options;
1685 // We pass all attributes they want to apply to the file to the create
1688 ulAttributes = pIrpSp->Parameters.Create.FileAttributes;
1691 // If this is a directory create then set the attribute correctly
1694 if( ulOptions & FILE_DIRECTORY_FILE)
1697 ulAttributes |= FILE_ATTRIBUTE_DIRECTORY;
1700 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1701 AFS_TRACE_LEVEL_VERBOSE,
1702 "AFSProcessCreate (%p) Creating file %wZ Attributes %08lX\n",
1707 if( BooleanFlagOn( VolumeCB->VolumeInformation.Characteristics, FILE_READ_ONLY_DEVICE))
1710 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1711 AFS_TRACE_LEVEL_ERROR,
1712 "AFSProcessCreate Request failed due to read only volume %wZ\n",
1715 try_return( ntStatus = STATUS_MEDIA_WRITE_PROTECTED);
1718 pParentObjectInfo = ParentDirCB->ObjectInformation;
1721 // Allocate and insert the direntry into the parent node
1724 ntStatus = AFSCreateDirEntry( AuthGroup,
1732 if( !NT_SUCCESS( ntStatus))
1735 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1736 AFS_TRACE_LEVEL_ERROR,
1737 "AFSProcessCreate (%p) Failed to create directory entry %wZ Status %08lX\n",
1742 try_return( ntStatus);
1745 bFileCreated = TRUE;
1747 pObjectInfo = pDirEntry->ObjectInformation;
1749 if( BooleanFlagOn( pObjectInfo->Flags, AFS_OBJECT_FLAGS_NOT_EVALUATED) ||
1750 pObjectInfo->FileType == AFS_FILE_TYPE_UNKNOWN)
1753 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1754 AFS_TRACE_LEVEL_VERBOSE,
1755 "AFSProcessCreate (%p) Evaluating object %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1757 &pDirEntry->NameInformation.FileName,
1758 pObjectInfo->FileId.Cell,
1759 pObjectInfo->FileId.Volume,
1760 pObjectInfo->FileId.Vnode,
1761 pObjectInfo->FileId.Unique);
1763 ntStatus = AFSEvaluateNode( AuthGroup,
1766 if( !NT_SUCCESS( ntStatus))
1769 if ( ntStatus == STATUS_NOT_A_DIRECTORY)
1772 if ( !BooleanFlagOn( pObjectInfo->Flags, AFS_OBJECT_FLAGS_PARENT_FID))
1775 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1776 AFS_TRACE_LEVEL_ERROR,
1777 "AFSProcessCreate (%p) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX PARENT %08lX-%08lX-%08lX-%08lX != NULL Status %08lX\n",
1779 &pDirEntry->NameInformation.FileName,
1780 pObjectInfo->FileId.Cell,
1781 pObjectInfo->FileId.Volume,
1782 pObjectInfo->FileId.Vnode,
1783 pObjectInfo->FileId.Unique,
1784 pParentObjectInfo->FileId.Cell,
1785 pParentObjectInfo->FileId.Volume,
1786 pParentObjectInfo->FileId.Vnode,
1787 pParentObjectInfo->FileId.Unique,
1790 else if ( AFSIsEqualFID( &pParentObjectInfo->FileId, &pObjectInfo->ParentFileId))
1793 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1794 AFS_TRACE_LEVEL_ERROR,
1795 "AFSProcessCreate (%p) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX PARENT %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1797 &pDirEntry->NameInformation.FileName,
1798 pObjectInfo->FileId.Cell,
1799 pObjectInfo->FileId.Volume,
1800 pObjectInfo->FileId.Vnode,
1801 pObjectInfo->FileId.Unique,
1802 pParentObjectInfo->FileId.Cell,
1803 pParentObjectInfo->FileId.Volume,
1804 pParentObjectInfo->FileId.Vnode,
1805 pParentObjectInfo->FileId.Unique,
1811 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1812 AFS_TRACE_LEVEL_ERROR,
1813 "AFSProcessCreate (%p) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX PARENT %08lX-%08lX-%08lX-%08lX != %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1815 &pDirEntry->NameInformation.FileName,
1816 pObjectInfo->FileId.Cell,
1817 pObjectInfo->FileId.Volume,
1818 pObjectInfo->FileId.Vnode,
1819 pObjectInfo->FileId.Unique,
1820 pParentObjectInfo->FileId.Cell,
1821 pParentObjectInfo->FileId.Volume,
1822 pParentObjectInfo->FileId.Vnode,
1823 pParentObjectInfo->FileId.Unique,
1824 pObjectInfo->ParentFileId.Cell,
1825 pObjectInfo->ParentFileId.Volume,
1826 pObjectInfo->ParentFileId.Vnode,
1827 pObjectInfo->ParentFileId.Unique,
1834 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1835 AFS_TRACE_LEVEL_ERROR,
1836 "AFSProcessCreate (%p) Failed to evaluate object %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1838 &pDirEntry->NameInformation.FileName,
1839 pObjectInfo->FileId.Cell,
1840 pObjectInfo->FileId.Volume,
1841 pObjectInfo->FileId.Vnode,
1842 pObjectInfo->FileId.Unique,
1846 try_return( ntStatus);
1849 ClearFlag( pObjectInfo->Flags, AFS_OBJECT_FLAGS_NOT_EVALUATED);
1852 ASSERT( BooleanFlagOn( pObjectInfo->Flags, AFS_OBJECT_FLAGS_PARENT_FID) &&
1853 AFSIsEqualFID( &pParentObjectInfo->FileId, &pObjectInfo->ParentFileId));
1856 // We may have raced and the Fcb is already created
1860 // Allocate and initialize the Fcb for the file.
1863 ntStatus = AFSInitFcb( pDirEntry);
1865 *Fcb = pObjectInfo->Fcb;
1867 if( !NT_SUCCESS( ntStatus))
1870 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1871 AFS_TRACE_LEVEL_ERROR,
1872 "AFSProcessCreate (%p) Failed to initialize fcb %wZ Status %08lX\n",
1877 try_return( ntStatus);
1880 ntStatus = STATUS_SUCCESS;
1883 // Increment the open count on this Fcb
1886 lCount = InterlockedIncrement( &(*Fcb)->OpenReferenceCount);
1888 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
1889 AFS_TRACE_LEVEL_VERBOSE,
1890 "AFSProcessCreate Increment count on Fcb %p Cnt %d\n",
1897 // Initialize the Ccb for the file.
1900 ntStatus = AFSInitCcb( Ccb,
1905 if( !NT_SUCCESS( ntStatus))
1908 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1909 AFS_TRACE_LEVEL_ERROR,
1910 "AFSProcessCreate (%p) Failed to initialize ccb %wZ Status %08lX\n",
1915 try_return( ntStatus);
1918 bAllocatedCcb = TRUE;
1921 // If this is a file, update the headers filesizes.
1924 if( (*Fcb)->Header.NodeTypeCode == AFS_FILE_FCB)
1928 // Update the sizes with the information passed in
1931 (*Fcb)->Header.AllocationSize.QuadPart = pObjectInfo->AllocationSize.QuadPart;
1932 (*Fcb)->Header.FileSize.QuadPart = pObjectInfo->EndOfFile.QuadPart;
1933 (*Fcb)->Header.ValidDataLength.QuadPart = pObjectInfo->EndOfFile.QuadPart;
1936 // Notify the system of the addition
1939 AFSFsRtlNotifyFullReportChange( pParentObjectInfo,
1941 (ULONG)FILE_NOTIFY_CHANGE_FILE_NAME,
1942 (ULONG)FILE_ACTION_ADDED);
1944 (*Fcb)->NPFcb->Specific.File.ExtentsRequestStatus = STATUS_SUCCESS;
1946 else if( (*Fcb)->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
1950 // This is a new directory node so indicate it has been enumerated
1953 SetFlag( pObjectInfo->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED);
1956 // And the parent directory entry
1959 KeQuerySystemTime( &pParentObjectInfo->ChangeTime);
1962 // Notify the system of the addition
1965 AFSFsRtlNotifyFullReportChange( pParentObjectInfo,
1967 (ULONG)FILE_NOTIFY_CHANGE_DIR_NAME,
1968 (ULONG)FILE_ACTION_ADDED);
1970 else if( (*Fcb)->Header.NodeTypeCode == AFS_MOUNT_POINT_FCB ||
1971 (*Fcb)->Header.NodeTypeCode == AFS_SYMBOLIC_LINK_FCB ||
1972 (*Fcb)->Header.NodeTypeCode == AFS_DFS_LINK_FCB ||
1973 (*Fcb)->Header.NodeTypeCode == AFS_INVALID_FCB)
1977 // And the parent directory entry
1980 KeQuerySystemTime( &pParentObjectInfo->ChangeTime);
1983 // Notify the system of the addition
1986 AFSFsRtlNotifyFullReportChange( pParentObjectInfo,
1988 (ULONG)FILE_NOTIFY_CHANGE_DIR_NAME,
1989 (ULONG)FILE_ACTION_ADDED);
1993 // Save off the access for the open
1996 IoSetShareAccess( *pDesiredAccess,
1999 &(*Fcb)->ShareAccess);
2001 lCount = InterlockedIncrement( &(*Fcb)->OpenHandleCount);
2003 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2004 AFS_TRACE_LEVEL_VERBOSE,
2005 "AFSProcessCreate Increment handle count on Fcb %p Cnt %d\n",
2010 // Increment the open reference and handle on the parent node
2013 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenHandleCount);
2015 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
2016 AFS_TRACE_LEVEL_VERBOSE,
2017 "AFSProcessCreate Increment child open handle count on Parent object %p Cnt %d\n",
2021 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenReferenceCount);
2023 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2024 AFS_TRACE_LEVEL_VERBOSE,
2025 "AFSProcessCreate Increment child open ref count on Parent object %p Cnt %d\n",
2029 if( ulOptions & FILE_DELETE_ON_CLOSE)
2033 // Mark it for delete on close
2036 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2037 AFS_TRACE_LEVEL_VERBOSE,
2038 "AFSProcessCreate (%p) Setting PENDING_DELETE flag in DirEntry %p Name %wZ\n",
2043 SetFlag( pDirEntry->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
2047 // Indicate the object is locked in the service
2050 SetFlag( pObjectInfo->Flags, AFS_OBJECT_HELD_IN_SERVICE);
2053 // Return the open result for this file
2056 Irp->IoStatus.Information = FILE_CREATED;
2061 // If we created the Fcb we need to release the resources
2067 if( !NT_SUCCESS( ntStatus))
2070 // Decrement the open count on this Fcb
2073 lCount = InterlockedDecrement( &(*Fcb)->OpenReferenceCount);
2075 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2076 AFS_TRACE_LEVEL_VERBOSE,
2077 "AFSProcessCreate Decrement count on Fcb %p Cnt %d\n",
2082 AFSReleaseResource( &(*Fcb)->NPFcb->Resource);
2089 // Decrement the reference added during initialization of the DE
2090 // AFSInitCcb allocates its own reference count.
2093 lCount = InterlockedDecrement( &pDirEntry->DirOpenReferenceCount);
2095 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
2096 AFS_TRACE_LEVEL_VERBOSE,
2097 "AFSProcessCreate Decrement count on %wZ DE %p Cnt %d\n",
2098 &pDirEntry->NameInformation.FileName,
2102 ASSERT( lCount >= 0);
2105 if( !NT_SUCCESS( ntStatus))
2111 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2112 AFS_TRACE_LEVEL_VERBOSE,
2113 "AFSProcessCreate Create failed, removing DE %p from parent object %p Status %08lX\n",
2119 // Remove the dir entry from the parent
2122 AFSAcquireExcl( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2125 SetFlag( pDirEntry->Flags, AFS_DIR_ENTRY_DELETED);
2127 AFSNotifyDelete( pDirEntry,
2132 // Pull the directory entry from the parent
2135 AFSRemoveDirNodeFromParent( pParentObjectInfo,
2137 FALSE); // Leave it in the enum list so the worker cleans it up
2140 // Tag the parent as needing verification
2143 SetFlag( pParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2145 pParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2147 AFSReleaseResource( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2158 // Fcb will be freed by AFSPrimaryVolumeWorker thread
2171 AFSOpenTargetDirectory( IN PIRP Irp,
2172 IN AFSVolumeCB *VolumeCB,
2173 IN AFSDirectoryCB *ParentDirectoryCB,
2174 IN AFSDirectoryCB *TargetDirectoryCB,
2175 IN UNICODE_STRING *TargetName,
2179 UNREFERENCED_PARAMETER(VolumeCB);
2180 NTSTATUS ntStatus = STATUS_SUCCESS;
2181 PFILE_OBJECT pFileObject = NULL;
2182 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2183 PACCESS_MASK pDesiredAccess = NULL;
2184 USHORT usShareAccess;
2185 BOOLEAN bAllocatedCcb = FALSE;
2186 BOOLEAN bReleaseFcb = FALSE;
2187 AFSObjectInfoCB *pParentObject = NULL;
2188 AFSObjectInfoCB *pGrandParentObject = NULL;
2189 UNICODE_STRING uniTargetName;
2195 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
2196 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
2198 pFileObject = pIrpSp->FileObject;
2200 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2201 AFS_TRACE_LEVEL_VERBOSE,
2202 "AFSOpenTargetDirectory (%p) Processing file %wZ\n",
2206 pParentObject = ParentDirectoryCB->ObjectInformation;
2208 if( pParentObject->FileType != AFS_FILE_TYPE_DIRECTORY)
2211 try_return( ntStatus = STATUS_INVALID_PARAMETER);
2215 // Make sure we have an Fcb for the access
2218 // Allocate and initialize the Fcb for the file.
2221 ntStatus = AFSInitFcb( ParentDirectoryCB);
2223 *Fcb = pParentObject->Fcb;
2225 if( !NT_SUCCESS( ntStatus))
2228 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2229 AFS_TRACE_LEVEL_ERROR,
2230 "AFSOpenTargetDirectory (%p) Failed to initialize fcb %wZ Status %08lX\n",
2232 &ParentDirectoryCB->NameInformation.FileName,
2235 try_return( ntStatus);
2238 ntStatus = STATUS_SUCCESS;
2241 // Increment the open count on this Fcb
2244 lCount = InterlockedIncrement( &pParentObject->Fcb->OpenReferenceCount);
2246 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2247 AFS_TRACE_LEVEL_VERBOSE,
2248 "AFSOpenTargetDirectory Increment count on Fcb %p Cnt %d\n",
2255 // If there are current opens on the Fcb, check the access.
2258 if( pParentObject->Fcb->OpenHandleCount > 0)
2261 ntStatus = IoCheckShareAccess( *pDesiredAccess,
2264 &pParentObject->Fcb->ShareAccess,
2267 if( !NT_SUCCESS( ntStatus))
2270 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2271 AFS_TRACE_LEVEL_ERROR,
2272 "AFSOpenTargetDirectory (%p) Access check failure %wZ Status %08lX\n",
2274 &ParentDirectoryCB->NameInformation.FileName,
2277 try_return( ntStatus);
2282 // Initialize the Ccb for the file.
2285 ntStatus = AFSInitCcb( Ccb,
2290 if( !NT_SUCCESS( ntStatus))
2293 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2294 AFS_TRACE_LEVEL_ERROR,
2295 "AFSOpenTargetDirectory (%p) Failed to initialize ccb %wZ Status %08lX\n",
2297 &ParentDirectoryCB->NameInformation.FileName,
2300 try_return( ntStatus);
2303 bAllocatedCcb = TRUE;
2305 if( TargetDirectoryCB != NULL &&
2306 FsRtlAreNamesEqual( &TargetDirectoryCB->NameInformation.FileName,
2312 Irp->IoStatus.Information = FILE_EXISTS;
2314 uniTargetName = TargetDirectoryCB->NameInformation.FileName;
2319 Irp->IoStatus.Information = FILE_DOES_NOT_EXIST;
2321 uniTargetName = *TargetName;
2325 // Update the filename in the fileobject for rename processing
2328 RtlCopyMemory( pFileObject->FileName.Buffer,
2329 uniTargetName.Buffer,
2330 uniTargetName.Length);
2332 pFileObject->FileName.Length = uniTargetName.Length;
2335 // OK, update the share access on the fileobject
2338 if( pParentObject->Fcb->OpenHandleCount > 0)
2341 IoUpdateShareAccess( pFileObject,
2342 &pParentObject->Fcb->ShareAccess);
2351 IoSetShareAccess( *pDesiredAccess,
2354 &pParentObject->Fcb->ShareAccess);
2357 lCount = InterlockedIncrement( &pParentObject->Fcb->OpenHandleCount);
2359 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2360 AFS_TRACE_LEVEL_VERBOSE,
2361 "AFSOpenTargetDirectory Increment handle count on Fcb %p Cnt %d\n",
2366 // Increment the open reference and handle on the parent node
2369 if( BooleanFlagOn( pParentObject->Flags, AFS_OBJECT_FLAGS_PARENT_FID))
2372 pGrandParentObject = AFSFindObjectInfo( pParentObject->VolumeCB,
2373 &pParentObject->ParentFileId);
2375 if ( pGrandParentObject)
2378 lCount = InterlockedIncrement( &pGrandParentObject->Specific.Directory.ChildOpenHandleCount);
2380 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
2381 AFS_TRACE_LEVEL_VERBOSE,
2382 "AFSOpenTargetDirectory Increment child open handle count on Parent object %p Cnt %d\n",
2386 lCount = InterlockedIncrement( &pGrandParentObject->Specific.Directory.ChildOpenReferenceCount);
2388 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
2389 AFS_TRACE_LEVEL_VERBOSE,
2390 "AFSOpenTargetDirectory Increment child open ref count on Parent object %p Cnt %d\n",
2394 AFSReleaseObjectInfo( &pGrandParentObject);
2403 if( !NT_SUCCESS( ntStatus))
2406 // Decrement the open count on this Fcb
2409 lCount = InterlockedDecrement( &pParentObject->Fcb->OpenReferenceCount);
2411 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2412 AFS_TRACE_LEVEL_VERBOSE,
2413 "AFSOpenTargetDirectory Decrement count on Fcb %p Cnt %d\n",
2418 AFSReleaseResource( &pParentObject->Fcb->NPFcb->Resource);
2421 if( !NT_SUCCESS( ntStatus))
2434 // Fcb will be freed by AFSPrimaryVolumeWorker thread
2445 AFSProcessOpen( IN PIRP Irp,
2447 IN AFSVolumeCB *VolumeCB,
2448 IN AFSDirectoryCB *ParentDirCB,
2449 IN AFSDirectoryCB *DirectoryCB,
2453 UNREFERENCED_PARAMETER(VolumeCB);
2454 NTSTATUS ntStatus = STATUS_SUCCESS;
2455 PFILE_OBJECT pFileObject = NULL;
2456 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2457 PACCESS_MASK pDesiredAccess = NULL;
2458 USHORT usShareAccess;
2459 BOOLEAN bAllocatedCcb = FALSE, bReleaseFcb = FALSE;
2460 ULONG ulOptions = 0;
2461 AFSFileOpenCB stOpenCB;
2462 AFSFileOpenResultCB stOpenResultCB;
2463 ULONG ulResultLen = 0;
2464 AFSObjectInfoCB *pParentObjectInfo = NULL;
2465 AFSObjectInfoCB *pObjectInfo = NULL;
2466 ULONG ulFileAccess = 0;
2467 AFSFileAccessReleaseCB stReleaseFileAccess;
2473 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
2474 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
2476 pFileObject = pIrpSp->FileObject;
2478 pParentObjectInfo = ParentDirCB->ObjectInformation;
2480 pObjectInfo = DirectoryCB->ObjectInformation;
2482 ASSERT( BooleanFlagOn( pObjectInfo->Flags, AFS_OBJECT_FLAGS_PARENT_FID) &&
2483 AFSIsEqualFID( &pParentObjectInfo->FileId, &pObjectInfo->ParentFileId));
2486 // Check if the entry is pending a deletion
2489 if( BooleanFlagOn( DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE))
2492 ntStatus = STATUS_DELETE_PENDING;
2494 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2495 AFS_TRACE_LEVEL_ERROR,
2496 "AFSProcessOpen (%p) Entry pending delete %wZ Status %08lX\n",
2498 &DirectoryCB->NameInformation.FileName,
2501 try_return( ntStatus);
2505 // Extract out the options
2508 ulOptions = pIrpSp->Parameters.Create.Options;
2511 // Check if we should go and retrieve updated information for the node
2514 ntStatus = AFSValidateEntry( DirectoryCB,
2519 if( !NT_SUCCESS( ntStatus))
2522 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2523 AFS_TRACE_LEVEL_ERROR,
2524 "AFSProcessOpen (%p) Failed to validate entry %wZ Status %08lX\n",
2526 &DirectoryCB->NameInformation.FileName,
2529 try_return( ntStatus);
2533 // If this is marked for delete on close then be sure we can delete the entry
2536 if( BooleanFlagOn( ulOptions, FILE_DELETE_ON_CLOSE))
2539 ntStatus = AFSNotifyDelete( DirectoryCB,
2543 if( !NT_SUCCESS( ntStatus))
2546 ntStatus = STATUS_CANNOT_DELETE;
2548 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2549 AFS_TRACE_LEVEL_ERROR,
2550 "AFSProcessOpen (%p) Cannot delete entry %wZ marked for delete on close Status %08lX\n",
2552 &DirectoryCB->NameInformation.FileName,
2555 try_return( ntStatus);
2560 // Be sure we have an Fcb for the current object
2563 ntStatus = AFSInitFcb( DirectoryCB);
2565 if( !NT_SUCCESS( ntStatus))
2568 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2569 AFS_TRACE_LEVEL_ERROR,
2570 "AFSProcessOpen (%p) Failed to init fcb on %wZ Status %08lX\n",
2572 &DirectoryCB->NameInformation.FileName,
2575 try_return( ntStatus);
2578 ntStatus = STATUS_SUCCESS;
2581 // AFSInitFcb returns the Fcb resource held
2587 // Increment the open count on this Fcb
2590 lCount = InterlockedIncrement( &pObjectInfo->Fcb->OpenReferenceCount);
2592 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2593 AFS_TRACE_LEVEL_VERBOSE,
2594 "AFSProcessOpen Increment2 count on Fcb %p Cnt %d\n",
2599 // Check access on the entry
2602 if( pObjectInfo->Fcb->OpenHandleCount > 0)
2605 ntStatus = IoCheckShareAccess( *pDesiredAccess,
2608 &pObjectInfo->Fcb->ShareAccess,
2611 if( !NT_SUCCESS( ntStatus))
2614 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2615 AFS_TRACE_LEVEL_ERROR,
2616 "AFSProcessOpen (%p) Failed to check share access on %wZ Status %08lX\n",
2618 &DirectoryCB->NameInformation.FileName,
2621 try_return( ntStatus);
2626 // Additional checks
2629 if( pObjectInfo->Fcb->Header.NodeTypeCode == AFS_FILE_FCB)
2633 // If the caller is asking for write access then try to flush the image section
2636 if( FlagOn( *pDesiredAccess, FILE_WRITE_DATA) ||
2637 BooleanFlagOn(ulOptions, FILE_DELETE_ON_CLOSE))
2642 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
2643 AFS_TRACE_LEVEL_VERBOSE,
2644 "AFSProcessOpen Acquiring Fcb SectionObject lock %p EXCL %08lX\n",
2645 &pObjectInfo->Fcb->NPFcb->SectionObjectResource,
2646 PsGetCurrentThread());
2648 AFSAcquireExcl( &pObjectInfo->Fcb->NPFcb->SectionObjectResource,
2651 bMmFlushed = MmFlushImageSection( &pObjectInfo->Fcb->NPFcb->SectionObjectPointers,
2654 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
2655 AFS_TRACE_LEVEL_VERBOSE,
2656 "AFSProcessOpen Releasing Fcb SectionObject lock %p EXCL %08lX\n",
2657 &pObjectInfo->Fcb->NPFcb->SectionObjectResource,
2658 PsGetCurrentThread());
2660 AFSReleaseResource( &pObjectInfo->Fcb->NPFcb->SectionObjectResource);
2665 ntStatus = BooleanFlagOn(ulOptions, FILE_DELETE_ON_CLOSE) ? STATUS_CANNOT_DELETE :
2666 STATUS_SHARING_VIOLATION;
2668 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2669 AFS_TRACE_LEVEL_ERROR,
2670 "AFSProcessOpen (%p) Failed to flush image section %wZ Status %08lX\n",
2672 &DirectoryCB->NameInformation.FileName,
2675 try_return( ntStatus);
2679 if( BooleanFlagOn( ulOptions, FILE_DIRECTORY_FILE))
2682 ntStatus = STATUS_NOT_A_DIRECTORY;
2684 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2685 AFS_TRACE_LEVEL_ERROR,
2686 "AFSProcessOpen (%p) Attempt to open file as directory %wZ Status %08lX\n",
2688 &DirectoryCB->NameInformation.FileName,
2691 try_return( ntStatus);
2694 pObjectInfo->Fcb->NPFcb->Specific.File.ExtentsRequestStatus = STATUS_SUCCESS;
2696 else if( pObjectInfo->Fcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB ||
2697 pObjectInfo->Fcb->Header.NodeTypeCode == AFS_ROOT_FCB)
2700 if( BooleanFlagOn( ulOptions, FILE_NON_DIRECTORY_FILE))
2703 ntStatus = STATUS_FILE_IS_A_DIRECTORY;
2705 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2706 AFS_TRACE_LEVEL_ERROR,
2707 "AFSProcessOpen (%p) Attempt to open directory as file %wZ Status %08lX\n",
2709 &DirectoryCB->NameInformation.FileName,
2712 try_return( ntStatus);
2715 else if( pObjectInfo->Fcb->Header.NodeTypeCode == AFS_MOUNT_POINT_FCB ||
2716 pObjectInfo->Fcb->Header.NodeTypeCode == AFS_SYMBOLIC_LINK_FCB ||
2717 pObjectInfo->Fcb->Header.NodeTypeCode == AFS_DFS_LINK_FCB ||
2718 pObjectInfo->Fcb->Header.NodeTypeCode == AFS_INVALID_FCB)
2725 try_return( ntStatus = STATUS_UNSUCCESSFUL);
2729 // Check with the service that we can open the file
2732 stOpenCB.ParentId = pParentObjectInfo->FileId;
2734 stOpenCB.DesiredAccess = *pDesiredAccess;
2736 stOpenCB.ShareAccess = usShareAccess;
2738 stOpenCB.ProcessId = (ULONGLONG)PsGetCurrentProcessId();
2740 stOpenCB.Identifier = (ULONGLONG)pFileObject;
2742 stOpenResultCB.GrantedAccess = 0;
2744 ulResultLen = sizeof( AFSFileOpenResultCB);
2746 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_OPEN_FILE,
2747 AFS_REQUEST_FLAG_SYNCHRONOUS | AFS_REQUEST_FLAG_HOLD_FID,
2749 &DirectoryCB->NameInformation.FileName,
2750 &pObjectInfo->FileId,
2752 sizeof( AFSFileOpenCB),
2753 (void *)&stOpenResultCB,
2756 if( !NT_SUCCESS( ntStatus))
2759 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2760 AFS_TRACE_LEVEL_ERROR,
2761 "AFSProcessOpen (%p) Failed open in service %wZ Status %08lX\n",
2763 &DirectoryCB->NameInformation.FileName,
2766 try_return( ntStatus);
2770 // Save the granted access in case we need to release it below
2773 ulFileAccess = stOpenResultCB.FileAccess;
2776 // Check if there is a conflict
2779 if( !AFSCheckAccess( *pDesiredAccess,
2780 stOpenResultCB.GrantedAccess,
2781 BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_DIRECTORY)))
2784 ntStatus = STATUS_ACCESS_DENIED;
2786 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2787 AFS_TRACE_LEVEL_ERROR,
2788 "AFSProcessOpen (%p) Failed to check access from service Desired %08lX Granted %08lX Entry %wZ Status %08lX\n",
2791 stOpenResultCB.GrantedAccess,
2792 &DirectoryCB->NameInformation.FileName,
2795 try_return( ntStatus);
2799 // Initialize the Ccb for the file.
2802 ntStatus = AFSInitCcb( Ccb,
2807 if( !NT_SUCCESS( ntStatus))
2810 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2811 AFS_TRACE_LEVEL_ERROR,
2812 "AFSProcessOpen (%p) Failed to initialize ccb %wZ Status %08lX\n",
2814 &DirectoryCB->NameInformation.FileName,
2817 try_return( ntStatus);
2820 bAllocatedCcb = TRUE;
2823 // Perform the access check on the target if this is a mount point or symlink
2826 if( pObjectInfo->Fcb->OpenHandleCount > 0)
2829 IoUpdateShareAccess( pFileObject,
2830 &pObjectInfo->Fcb->ShareAccess);
2839 IoSetShareAccess( *pDesiredAccess,
2842 &pObjectInfo->Fcb->ShareAccess);
2845 lCount = InterlockedIncrement( &pObjectInfo->Fcb->OpenHandleCount);
2847 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2848 AFS_TRACE_LEVEL_VERBOSE,
2849 "AFSProcessOpen Increment handle count on Fcb %p Cnt %d\n",
2854 // Increment the open reference and handle on the parent node
2857 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenHandleCount);
2859 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
2860 AFS_TRACE_LEVEL_VERBOSE,
2861 "AFSProcessOpen Increment child open handle count on Parent object %p Cnt %d\n",
2865 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenReferenceCount);
2867 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
2868 AFS_TRACE_LEVEL_VERBOSE,
2869 "AFSProcessOpen Increment child open ref count on Parent object %p Cnt %d\n",
2873 if( BooleanFlagOn( ulOptions, FILE_DELETE_ON_CLOSE))
2877 // Mark it for delete on close
2880 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2881 AFS_TRACE_LEVEL_VERBOSE,
2882 "AFSProcessOpen (%p) Setting PENDING_DELETE flag in DirEntry %p Name %wZ\n",
2885 &DirectoryCB->NameInformation.FileName);
2887 SetFlag( DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
2891 // Indicate the object is held
2894 SetFlag( pObjectInfo->Flags, AFS_OBJECT_HELD_IN_SERVICE);
2897 // Return the open result for this file
2900 Irp->IoStatus.Information = FILE_OPENED;
2902 *Fcb = pObjectInfo->Fcb;
2909 if( !NT_SUCCESS( ntStatus))
2912 // Decrement the open count on this Fcb
2915 lCount = InterlockedDecrement( &pObjectInfo->Fcb->OpenReferenceCount);
2917 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2918 AFS_TRACE_LEVEL_VERBOSE,
2919 "AFSProcessOpen Decrement2 count on Fcb %p Cnt %d\n",
2924 AFSReleaseResource( pObjectInfo->Fcb->Header.Resource);
2927 if( !NT_SUCCESS( ntStatus))
2930 if ( ulFileAccess > 0)
2933 stReleaseFileAccess.ProcessId = (ULONGLONG)PsGetCurrentProcessId();
2935 stReleaseFileAccess.FileAccess = ulFileAccess;
2937 stReleaseFileAccess.Identifier = (ULONGLONG)pFileObject;
2939 AFSProcessRequest( AFS_REQUEST_TYPE_RELEASE_FILE_ACCESS,
2940 AFS_REQUEST_FLAG_SYNCHRONOUS,
2942 &DirectoryCB->NameInformation.FileName,
2943 &pObjectInfo->FileId,
2944 (void *)&stReleaseFileAccess,
2945 sizeof( AFSFileAccessReleaseCB),
2960 // Fcb will be freed by AFSPrimaryVolumeWorker thread
2971 AFSProcessOverwriteSupersede( IN PDEVICE_OBJECT DeviceObject,
2973 IN AFSVolumeCB *VolumeCB,
2975 IN AFSDirectoryCB *ParentDirCB,
2976 IN AFSDirectoryCB *DirectoryCB,
2980 UNREFERENCED_PARAMETER(DeviceObject);
2981 NTSTATUS ntStatus = STATUS_SUCCESS;
2982 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2983 PFILE_OBJECT pFileObject = NULL;
2984 LARGE_INTEGER liZero = {0,0};
2985 BOOLEAN bReleasePaging = FALSE, bReleaseFcb = FALSE;
2986 ULONG ulAttributes = 0;
2987 ULONG ulCreateDisposition = 0;
2988 BOOLEAN bAllocatedCcb = FALSE;
2989 BOOLEAN bUserMapped = FALSE;
2990 PACCESS_MASK pDesiredAccess = NULL;
2991 USHORT usShareAccess;
2992 AFSObjectInfoCB *pParentObjectInfo = NULL;
2993 AFSObjectInfoCB *pObjectInfo = NULL;
2995 LARGE_INTEGER liSaveSize;
2996 LARGE_INTEGER liSaveVDL;
2997 LARGE_INTEGER liSaveAlloc;
3002 pDesiredAccess = &pIrpSp->Parameters.Create.SecurityContext->DesiredAccess;
3004 usShareAccess = pIrpSp->Parameters.Create.ShareAccess;
3006 pFileObject = pIrpSp->FileObject;
3008 ulAttributes = pIrpSp->Parameters.Create.FileAttributes;
3010 ulCreateDisposition = (pIrpSp->Parameters.Create.Options >> 24) & 0x000000ff;
3012 if( BooleanFlagOn( VolumeCB->VolumeInformation.Characteristics, FILE_READ_ONLY_DEVICE))
3015 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3016 AFS_TRACE_LEVEL_ERROR,
3017 "AFSProcessOverwriteSupersede Request failed on %wZ due to read only volume\n",
3019 &DirectoryCB->NameInformation.FileName);
3021 try_return( ntStatus = STATUS_MEDIA_WRITE_PROTECTED);
3024 pParentObjectInfo = ParentDirCB->ObjectInformation;
3026 pObjectInfo = DirectoryCB->ObjectInformation;
3028 ASSERT( BooleanFlagOn( pObjectInfo->Flags, AFS_OBJECT_FLAGS_PARENT_FID) &&
3029 AFSIsEqualFID( &pParentObjectInfo->FileId, &pObjectInfo->ParentFileId));
3032 // Check if we should go and retrieve updated information for the node
3035 ntStatus = AFSValidateEntry( DirectoryCB,
3040 if( !NT_SUCCESS( ntStatus))
3043 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3044 AFS_TRACE_LEVEL_ERROR,
3045 "AFSProcessOverwriteSupersede (%p) Failed to validate entry %wZ Status %08lX\n",
3047 &DirectoryCB->NameInformation.FileName,
3050 try_return( ntStatus);
3054 // Be sure we have an Fcb for the object block
3057 ntStatus = AFSInitFcb( DirectoryCB);
3059 *Fcb = pObjectInfo->Fcb;
3061 if( !NT_SUCCESS( ntStatus))
3064 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3065 AFS_TRACE_LEVEL_ERROR,
3066 "AFSProcessOverwriteSupersede (%p) Failed to initialize fcb %wZ Status %08lX\n",
3068 &DirectoryCB->NameInformation.FileName,
3071 try_return( ntStatus);
3074 ntStatus = STATUS_SUCCESS;
3077 // Increment the open count on this Fcb.
3080 lCount = InterlockedIncrement( &pObjectInfo->Fcb->OpenReferenceCount);
3082 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3083 AFS_TRACE_LEVEL_VERBOSE,
3084 "AFSProcessOverwriteSupersede Increment2 count on Fcb %p Cnt %d\n",
3091 // Check access on the entry
3094 if( pObjectInfo->Fcb->OpenHandleCount > 0)
3097 ntStatus = IoCheckShareAccess( *pDesiredAccess,
3100 &pObjectInfo->Fcb->ShareAccess,
3103 if( !NT_SUCCESS( ntStatus))
3106 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3107 AFS_TRACE_LEVEL_ERROR,
3108 "AFSProcessOverwriteSupersede (%p) Access check failure %wZ Status %08lX\n",
3110 &DirectoryCB->NameInformation.FileName,
3113 try_return( ntStatus);
3117 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
3118 AFS_TRACE_LEVEL_VERBOSE,
3119 "AFSProcessOverwriteSupercede Acquiring Fcb SectionObject lock %p EXCL %08lX\n",
3120 &pObjectInfo->Fcb->NPFcb->SectionObjectResource,
3121 PsGetCurrentThread());
3123 AFSAcquireExcl( &pObjectInfo->Fcb->NPFcb->SectionObjectResource,
3127 // Before we actually truncate, check to see if the purge
3128 // is going to fail.
3131 bUserMapped = !MmCanFileBeTruncated( &pObjectInfo->Fcb->NPFcb->SectionObjectPointers,
3134 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
3135 AFS_TRACE_LEVEL_VERBOSE,
3136 "AFSProcessOverwriteSupercede Releasing Fcb SectionObject lock %p EXCL %08lX\n",
3137 &pObjectInfo->Fcb->NPFcb->SectionObjectResource,
3138 PsGetCurrentThread());
3140 AFSReleaseResource( &pObjectInfo->Fcb->NPFcb->SectionObjectResource);
3145 ntStatus = STATUS_USER_MAPPED_FILE;
3147 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3148 AFS_TRACE_LEVEL_ERROR,
3149 "AFSProcessOverwriteSupersede (%p) File user mapped %wZ Status %08lX\n",
3151 &DirectoryCB->NameInformation.FileName,
3154 try_return( ntStatus);
3158 // Initialize the Ccb for the file.
3161 ntStatus = AFSInitCcb( Ccb,
3166 if( !NT_SUCCESS( ntStatus))
3169 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3170 AFS_TRACE_LEVEL_ERROR,
3171 "AFSProcessOverwriteSupersede (%p) Failed to initialize ccb %wZ Status %08lX\n",
3173 &DirectoryCB->NameInformation.FileName,
3176 try_return( ntStatus);
3179 bAllocatedCcb = TRUE;
3182 // Set the file length to zero
3185 AFSAcquireExcl( pObjectInfo->Fcb->Header.PagingIoResource,
3188 bReleasePaging = TRUE;
3190 liSaveSize = pObjectInfo->Fcb->Header.FileSize;
3191 liSaveAlloc = pObjectInfo->Fcb->Header.AllocationSize;
3192 liSaveVDL = pObjectInfo->Fcb->Header.ValidDataLength;
3194 pObjectInfo->Fcb->Header.FileSize.QuadPart = 0;
3195 pObjectInfo->Fcb->Header.ValidDataLength.QuadPart = 0;
3196 pObjectInfo->Fcb->Header.AllocationSize.QuadPart = 0;
3198 pObjectInfo->EndOfFile.QuadPart = 0;
3199 pObjectInfo->AllocationSize.QuadPart = 0;
3202 // Trim down the extents. We do this BEFORE telling the service
3203 // the file is truncated since there is a potential race between
3204 // a worker thread releasing extents and us trimming
3207 AFSTrimExtents( pObjectInfo->Fcb,
3208 &pObjectInfo->Fcb->Header.FileSize);
3210 KeQuerySystemTime( &pObjectInfo->ChangeTime);
3212 KeQuerySystemTime( &pObjectInfo->LastAccessTime);
3214 KeQuerySystemTime( &pObjectInfo->LastWriteTime);
3217 // Set the update flag accordingly
3220 SetFlag( pObjectInfo->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED |
3221 AFS_FCB_FLAG_UPDATE_CREATE_TIME |
3222 AFS_FCB_FLAG_UPDATE_CHANGE_TIME |
3223 AFS_FCB_FLAG_UPDATE_ACCESS_TIME |
3224 AFS_FCB_FLAG_UPDATE_LAST_WRITE_TIME);
3226 ntStatus = AFSUpdateFileInformation( &pParentObjectInfo->FileId,
3230 if( !NT_SUCCESS( ntStatus))
3233 pObjectInfo->Fcb->Header.ValidDataLength = liSaveVDL;
3234 pObjectInfo->Fcb->Header.FileSize = liSaveSize;
3235 pObjectInfo->Fcb->Header.AllocationSize = liSaveAlloc;
3236 pObjectInfo->Fcb->ObjectInformation->EndOfFile = liSaveSize;
3237 pObjectInfo->Fcb->ObjectInformation->AllocationSize = liSaveAlloc;
3239 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3240 AFS_TRACE_LEVEL_ERROR,
3241 "AFSProcessOverwriteSupersede (%p) Failed to update file information %wZ Status %08lX\n",
3243 &DirectoryCB->NameInformation.FileName,
3246 try_return( ntStatus);
3249 ulAttributes |= FILE_ATTRIBUTE_ARCHIVE;
3251 if( ulCreateDisposition == FILE_SUPERSEDE)
3254 pObjectInfo->FileAttributes = ulAttributes;
3260 pObjectInfo->FileAttributes |= ulAttributes;
3264 // Save off the access for the open
3267 if( pObjectInfo->Fcb->OpenHandleCount > 0)
3270 IoUpdateShareAccess( pFileObject,
3271 &pObjectInfo->Fcb->ShareAccess);
3280 IoSetShareAccess( *pDesiredAccess,
3283 &pObjectInfo->Fcb->ShareAccess);
3287 // Return the correct action
3290 if( ulCreateDisposition == FILE_SUPERSEDE)
3293 Irp->IoStatus.Information = FILE_SUPERSEDED;
3298 Irp->IoStatus.Information = FILE_OVERWRITTEN;
3301 lCount = InterlockedIncrement( &pObjectInfo->Fcb->OpenHandleCount);
3303 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3304 AFS_TRACE_LEVEL_VERBOSE,
3305 "AFSProcessOverwriteSupersede Increment handle count on Fcb %p Cnt %d\n",
3310 // Increment the open reference and handle on the parent node
3313 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenHandleCount);
3315 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
3316 AFS_TRACE_LEVEL_VERBOSE,
3317 "AFSProcessOverwriteSupersede Increment child open handle count on Parent object %p Cnt %d\n",
3321 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenReferenceCount);
3323 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
3324 AFS_TRACE_LEVEL_VERBOSE,
3325 "AFSProcessOverwriteSupersede Increment child open ref count on Parent object %p Cnt %d\n",
3329 AFSReleaseResource( pObjectInfo->Fcb->Header.Resource);
3331 bReleaseFcb = FALSE;
3333 *Fcb = pObjectInfo->Fcb;
3336 // Now that the Fcb->Resource has been dropped
3337 // we can call CcSetFileSizes. We are still holding
3338 // the PagingIoResource
3341 pFileObject->SectionObjectPointer = &pObjectInfo->Fcb->NPFcb->SectionObjectPointers;
3343 pFileObject->FsContext = (void *)pObjectInfo->Fcb;
3345 pFileObject->FsContext2 = (void *)*Ccb;
3347 CcSetFileSizes( pFileObject,
3348 (PCC_FILE_SIZES)&pObjectInfo->Fcb->Header.AllocationSize);
3355 AFSReleaseResource( pObjectInfo->Fcb->Header.PagingIoResource);
3361 if( !NT_SUCCESS( ntStatus))
3364 // Decrement the open count on this Fcb.
3367 lCount = InterlockedDecrement( &pObjectInfo->Fcb->OpenReferenceCount);
3369 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3370 AFS_TRACE_LEVEL_VERBOSE,
3371 "AFSProcessOverwriteSupersede Decrement2 count on Fcb %p Cnt %d\n",
3376 AFSReleaseResource( pObjectInfo->Fcb->Header.Resource);
3379 if( !NT_SUCCESS( ntStatus))
3392 // Fcb will be freed by AFSPrimaryVolumeWorker thread
3403 AFSControlDeviceCreate( IN PIRP Irp)
3406 NTSTATUS ntStatus = STATUS_SUCCESS;
3411 if ( KernelMode == Irp->RequestorMode) {
3413 // For now, just let the open happen
3415 Irp->IoStatus.Information = FILE_OPENED;
3420 // Not from usermode, All access must be via
3421 // the FS component (which will do the
3424 ntStatus = STATUS_ACCESS_DENIED;
3432 // AFSOpenIOCtlFcb does not release a DirOpenReferenceCount on
3437 AFSOpenIOCtlFcb( IN PIRP Irp,
3439 IN AFSDirectoryCB *ParentDirCB,
3444 NTSTATUS ntStatus = STATUS_SUCCESS;
3445 PFILE_OBJECT pFileObject = NULL;
3446 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
3447 BOOLEAN bReleaseFcb = FALSE, bAllocatedCcb = FALSE;
3448 AFSPIOCtlOpenCloseRequestCB stPIOCtlOpen;
3450 AFSObjectInfoCB *pParentObjectInfo = NULL;
3456 pFileObject = pIrpSp->FileObject;
3458 pParentObjectInfo = ParentDirCB->ObjectInformation;
3461 // If we haven't initialized the PIOCtl DirectoryCB for this directory then do it now
3464 if( pParentObjectInfo->Specific.Directory.PIOCtlDirectoryCB == NULL)
3467 ntStatus = AFSInitPIOCtlDirectoryCB( pParentObjectInfo);
3469 if( !NT_SUCCESS( ntStatus))
3472 try_return( ntStatus);
3477 // Allocate and initialize the Fcb for the file.
3480 ntStatus = AFSInitFcb( pParentObjectInfo->Specific.Directory.PIOCtlDirectoryCB);
3482 *Fcb = pParentObjectInfo->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb;
3484 if( !NT_SUCCESS( ntStatus))
3487 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3488 AFS_TRACE_LEVEL_ERROR,
3489 "AFSOpenIOCtlFcb (%p) Failed to initialize fcb Status %08lX\n",
3493 try_return( ntStatus);
3496 ntStatus = STATUS_SUCCESS;
3499 // Increment the open reference and handle on the node
3502 lCount = InterlockedIncrement( &(*Fcb)->OpenReferenceCount);
3504 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3505 AFS_TRACE_LEVEL_VERBOSE,
3506 "AFSOpenIOCtlFcb Increment count on Fcb %p Cnt %d\n",
3513 // Initialize the Ccb for the file.
3516 ntStatus = AFSInitCcb( Ccb,
3517 pParentObjectInfo->Specific.Directory.PIOCtlDirectoryCB,
3521 if( !NT_SUCCESS( ntStatus))
3524 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3525 AFS_TRACE_LEVEL_ERROR,
3526 "AFSOpenIOCtlFcb (%p) Failed to initialize ccb Status %08lX\n",
3530 try_return( ntStatus);
3533 bAllocatedCcb = TRUE;
3536 // Set the PIOCtl index
3539 (*Ccb)->RequestID = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.OpenRequestIndex);
3541 RtlZeroMemory( &stPIOCtlOpen,
3542 sizeof( AFSPIOCtlOpenCloseRequestCB));
3544 stPIOCtlOpen.RequestId = (*Ccb)->RequestID;
3546 stPIOCtlOpen.RootId = pParentObjectInfo->VolumeCB->ObjectInformation.FileId;
3548 RtlZeroMemory( &stFileID,
3549 sizeof( AFSFileID));
3552 // The parent directory FID of the node
3555 stFileID = pParentObjectInfo->FileId;
3558 // Issue the open request to the service
3561 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIOCTL_OPEN,
3562 AFS_REQUEST_FLAG_SYNCHRONOUS,
3566 (void *)&stPIOCtlOpen,
3567 sizeof( AFSPIOCtlOpenCloseRequestCB),
3571 if( !NT_SUCCESS( ntStatus))
3574 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
3575 AFS_TRACE_LEVEL_ERROR,
3576 "AFSOpenIOCtlFcb (%p) Failed service open Status %08lX\n",
3580 try_return( ntStatus);
3584 // Increment the handle on the node
3587 lCount = InterlockedIncrement( &(*Fcb)->OpenHandleCount);
3589 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3590 AFS_TRACE_LEVEL_VERBOSE,
3591 "AFSOpenIOCtlFcb Increment handle count on Fcb %p Cnt %d\n",
3596 // Increment the open reference and handle on the parent node
3599 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenHandleCount);
3601 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
3602 AFS_TRACE_LEVEL_VERBOSE,
3603 "AFSOpenIOCtlFcb Increment child open handle count on Parent object %p Cnt %d\n",
3607 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenReferenceCount);
3609 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
3610 AFS_TRACE_LEVEL_VERBOSE,
3611 "AFSOpenIOCtlFcb Increment child open ref count on Parent object %p Cnt %d\n",
3616 // Return the open result for this file
3619 Irp->IoStatus.Information = FILE_OPENED;
3624 // If we created the Fcb we need to release the resources
3630 if( !NT_SUCCESS( ntStatus))
3633 // Decrement the open reference and handle on the node
3636 lCount = InterlockedDecrement( &(*Fcb)->OpenReferenceCount);
3638 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3639 AFS_TRACE_LEVEL_VERBOSE,
3640 "AFSOpenIOCtlFcb Decrement count on Fcb %p Cnt %d\n",
3645 AFSReleaseResource( &(*Fcb)->NPFcb->Resource);
3648 if( !NT_SUCCESS( ntStatus))
3661 // Fcb will be freed by AFSPrimaryVolumeWorker thread
3672 AFSOpenSpecialShareFcb( IN PIRP Irp,
3674 IN AFSDirectoryCB *DirectoryCB,
3679 NTSTATUS ntStatus = STATUS_SUCCESS;
3680 PFILE_OBJECT pFileObject = NULL;
3681 PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
3682 BOOLEAN bReleaseFcb = FALSE, bAllocatedCcb = FALSE, bAllocateFcb = FALSE;
3683 AFSObjectInfoCB *pObjectInfo = NULL;
3684 AFSObjectInfoCB *pParentObjectInfo = NULL;
3685 AFSPipeOpenCloseRequestCB stPipeOpen;
3691 pFileObject = pIrpSp->FileObject;
3693 AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3694 AFS_TRACE_LEVEL_VERBOSE_2,
3695 "AFSOpenSpecialShareFcb (%p) Processing Share %wZ open\n",
3697 &DirectoryCB->NameInformation.FileName);
3699 pObjectInfo = DirectoryCB->ObjectInformation;
3701 if ( BooleanFlagOn( pObjectInfo->Flags, AFS_OBJECT_FLAGS_PARENT_FID))
3704 pParentObjectInfo = AFSFindObjectInfo( pObjectInfo->VolumeCB,
3705 &pObjectInfo->ParentFileId);
3708 if( DirectoryCB->ObjectInformation->Fcb == NULL)
3712 // Allocate and initialize the Fcb for the file.
3715 ntStatus = AFSInitFcb( DirectoryCB);
3717 *Fcb = pObjectInfo->Fcb;
3719 if( !NT_SUCCESS( ntStatus))
3722 AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3723 AFS_TRACE_LEVEL_ERROR,
3724 "AFSOpenSpecialShareFcb (%p) Failed to initialize fcb Status %08lX\n",
3728 try_return( ntStatus);
3731 if ( ntStatus != STATUS_REPARSE)
3734 bAllocateFcb = TRUE;
3737 ntStatus = STATUS_SUCCESS;
3742 *Fcb = pObjectInfo->Fcb;
3744 AFSAcquireExcl( &(*Fcb)->NPFcb->Resource,
3749 // Increment the open count on this Fcb
3752 lCount = InterlockedIncrement( &(*Fcb)->OpenReferenceCount);
3754 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3755 AFS_TRACE_LEVEL_VERBOSE,
3756 "AFSOpenSpecialShareFcb Increment count on Fcb %p Cnt %d\n",
3763 // Initialize the Ccb for the file.
3766 ntStatus = AFSInitCcb( Ccb,
3771 if( !NT_SUCCESS( ntStatus))
3774 AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3775 AFS_TRACE_LEVEL_ERROR,
3776 "AFSOpenSpecialShareFcb (%p) Failed to initialize ccb Status %08lX\n",
3780 try_return( ntStatus);
3783 bAllocatedCcb = TRUE;
3786 // Call the service to open the share
3789 (*Ccb)->RequestID = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.OpenRequestIndex);
3791 RtlZeroMemory( &stPipeOpen,
3792 sizeof( AFSPipeOpenCloseRequestCB));
3794 stPipeOpen.RequestId = (*Ccb)->RequestID;
3796 stPipeOpen.RootId = pParentObjectInfo->VolumeCB->ObjectInformation.FileId;
3799 // Issue the open request to the service
3802 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_OPEN,
3803 AFS_REQUEST_FLAG_SYNCHRONOUS,
3805 &DirectoryCB->NameInformation.FileName,
3807 (void *)&stPipeOpen,
3808 sizeof( AFSPipeOpenCloseRequestCB),
3812 if( !NT_SUCCESS( ntStatus))
3815 AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3816 AFS_TRACE_LEVEL_ERROR,
3817 "AFSOpenSpecialShareFcb (%p) Failed service open Status %08lX\n",
3821 try_return( ntStatus);
3824 lCount = InterlockedIncrement( &(*Fcb)->OpenHandleCount);
3826 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3827 AFS_TRACE_LEVEL_VERBOSE,
3828 "AFSOpenSpecialShareFcb Increment handle count on Fcb %p Cnt %d\n",
3833 // Increment the open reference and handle on the parent node
3836 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenHandleCount);
3838 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
3839 AFS_TRACE_LEVEL_VERBOSE,
3840 "AFSOpenSpecialShareFcb Increment child open handle count on Parent object %p Cnt %d\n",
3844 lCount = InterlockedIncrement( &pParentObjectInfo->Specific.Directory.ChildOpenReferenceCount);
3846 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
3847 AFS_TRACE_LEVEL_VERBOSE,
3848 "AFSOpenSpecialShareFcb Increment child open ref count on Parent object %p Cnt %d\n",
3853 // Return the open result for this file
3856 Irp->IoStatus.Information = FILE_OPENED;
3863 if( !NT_SUCCESS( ntStatus))
3866 // Decrement the open count on this Fcb
3869 lCount = InterlockedDecrement( &(*Fcb)->OpenReferenceCount);
3871 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
3872 AFS_TRACE_LEVEL_VERBOSE,
3873 "AFSOpenSpecialShareFcb Decrement count on Fcb %p Cnt %d\n",
3878 AFSReleaseResource( &(*Fcb)->NPFcb->Resource);
3881 if( !NT_SUCCESS( ntStatus))
3897 // Need to tear down this Fcb since it is not in the tree for the worker thread
3900 AFSAcquireExcl( &DirectoryCB->ObjectInformation->NonPagedInfo->ObjectInfoLock,
3903 AFSRemoveFcb( &DirectoryCB->ObjectInformation->Fcb);
3905 AFSReleaseResource( &DirectoryCB->ObjectInformation->NonPagedInfo->ObjectInfoLock);