NTSTATUS
FatFsdCleanup (
IN PVOLUME_DEVICE_OBJECT VolumeDeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine implements the FSD part of closing down a handle to a
file object.
Arguments:
VolumeDeviceObject - Supplies the volume device object where the
file being Cleanup exists
Irp - Supplies the Irp being processed
Return Value:
NTSTATUS - The FSD status for the IRP
--*/
{
NTSTATUS Status;
PIRP_CONTEXT IrpContext = NULL;
BOOLEAN TopLevel;
#if __NDAS_FAT__
if ((PVOID)FatControlDeviceObject == VolumeDeviceObject) {
Status = Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = FILE_OPENED;
IoCompleteRequest( Irp, IO_DISK_INCREMENT );
return Status;
}
#endif
//
// If we were called with our file system device object instead of a
// volume device object, just complete this request with STATUS_SUCCESS
//
if ( FatDeviceIsFatFsdo( VolumeDeviceObject)) {
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = FILE_OPENED;
IoCompleteRequest( Irp, IO_DISK_INCREMENT );
return STATUS_SUCCESS;
}
DebugTrace(+1, Dbg, "FatFsdCleanup\n", 0);
//
// Call the common Cleanup routine, with blocking allowed.
//
FsRtlEnterFileSystem();
TopLevel = FatIsIrpTopLevel( Irp );
#if __NDAS_FAT__
do {
try {
if (IrpContext == NULL) {
IrpContext = FatCreateIrpContext( Irp, TRUE );
IrpContext->TopLevel = TopLevel;
#if __NDAS_FAT_PRIMARY__
{
ULONG_PTR stackBottom;
ULONG_PTR stackTop;
BOOLEAN ValidPrimaryRequest = FALSE;
PPRIMARY_REQUEST_INFO primaryRequestInfo;
PIO_STACK_LOCATION irpSp = IoGetCurrentIrpStackLocation( Irp );
//primaryRequestInfo = (PPRIMARY_REQUEST_INFO)FatGetTopLevelContext()->SavedTopLevelIrp;
primaryRequestInfo = (PPRIMARY_REQUEST_INFO)IoGetTopLevelIrp();
IoGetStackLimits( &stackTop, &stackBottom );
if ( (ULONG_PTR)primaryRequestInfo <= stackBottom - sizeof(PRIMARY_REQUEST_INFO) &&
(ULONG_PTR) primaryRequestInfo >= stackTop &&
(!FlagOn( (ULONG_PTR) primaryRequestInfo, 0x3 )) &&
primaryRequestInfo->PrimaryTag == 0xe2027482) {
ValidPrimaryRequest = TRUE;
}
if (ValidPrimaryRequest) {
//ASSERT( FatIsTopLevelRequest(IrpContext) );
IoSetTopLevelIrp( NULL );
TopLevel = FatIsIrpTopLevel( Irp );
ClearFlag( IrpContext->Flags, IRP_CONTEXT_FLAG_RECURSIVE_CALL );
if (IsListEmpty(&VolumeDeviceObject->PrimarySessionQueue))
ASSERT( FALSE );
IrpContext->PrimaryRequestInfo = *primaryRequestInfo;
DebugTrace2( 0, Dbg, ("primaryRequestInfo = %p\n", primaryRequestInfo) );
}
}
#endif
}
#if __NDAS_FAT_SECONDARY__
if (IS_SECONDARY_FILEOBJECT(IoGetCurrentIrpStackLocation(Irp)->FileObject)) {
BOOLEAN secondaryResourceAcquired = FALSE;
BOOLEAN secondaryRecoveryResourceAcquired = FALSE;
ASSERT( FatIsTopLevelRequest(IrpContext) );
SetFlag( IrpContext->NdFatFlags, ND_FAT_IRP_CONTEXT_FLAG_SECONDARY_CONTEXT );
SetFlag( IrpContext->NdFatFlags, ND_FAT_IRP_CONTEXT_FLAG_SECONDARY_FILE );
Status = STATUS_SUCCESS;
while (TRUE) {
ASSERT( secondaryRecoveryResourceAcquired == FALSE );
ASSERT( secondaryResourceAcquired == FALSE );
if (FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ||
FlagOn(VolumeDeviceObject->Secondary->Flags, SECONDARY_FLAG_RECONNECTING)) {
if (!FlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT)) {
Status = FatFsdPostRequest( IrpContext, Irp );
break;
}
}
if (FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED)) {
secondaryRecoveryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( IrpContext,
&VolumeDeviceObject->Secondary->RecoveryResource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
if (!FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ) {
SecondaryReleaseResourceLite( IrpContext, &VolumeDeviceObject->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( IrpContext,
&VolumeDeviceObject->Secondary->Resource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
try {
SessionRecovery( VolumeDeviceObject->Secondary, IrpContext );
} finally {
SecondaryReleaseResourceLite( IrpContext, &VolumeDeviceObject->Secondary->Resource );
secondaryResourceAcquired = FALSE;
SecondaryReleaseResourceLite( IrpContext, &VolumeDeviceObject->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
}
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceSharedLite( IrpContext,
&VolumeDeviceObject->Secondary->Resource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
if (secondaryResourceAcquired == FALSE) {
ASSERT( FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ||
FlagOn(VolumeDeviceObject->Secondary->Flags, SECONDARY_FLAG_RECONNECTING) );
continue;
}
break;
}
if (Status == STATUS_SUCCESS) {
try {
Status = FatCommonCleanup( IrpContext, Irp );
} finally {
ASSERT( ExIsResourceAcquiredSharedLite(&VolumeDeviceObject->Secondary->Resource) );
SecondaryReleaseResourceLite( NULL, &VolumeDeviceObject->Secondary->Resource );
}
}
} else
Status = FatCommonCleanup( IrpContext, Irp );
#else
Status = FatCommonCleanup( IrpContext, Irp );
#endif
} except(FatExceptionFilter( IrpContext, GetExceptionInformation() )) {
//
// We had some trouble trying to perform the requested
// operation, so we'll abort the I/O request with
// the error status that we get back from the
// execption code
//
Status = FatProcessException( IrpContext, Irp, GetExceptionCode() );
}
} while (Status == STATUS_CANT_WAIT);
NTSTATUS
FatFsdFlushBuffers (
IN PVOLUME_DEVICE_OBJECT VolumeDeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine implements the FSD part of Flush buffers.
Arguments:
VolumeDeviceObject - Supplies the volume device object where the
file being flushed exists
Irp - Supplies the Irp being processed
Return Value:
NTSTATUS - The FSD status for the IRP
--*/
{
NTSTATUS Status;
PIRP_CONTEXT IrpContext = NULL;
BOOLEAN TopLevel;
PAGED_CODE();
DebugTrace(+1, Dbg, "FatFsdFlushBuffers\n", 0);
//
// Call the common Cleanup routine, with blocking allowed if synchronous
//
FsRtlEnterFileSystem();
TopLevel = FatIsIrpTopLevel( Irp );
#ifdef __ND_FAT__
do {
try {
if (IrpContext == NULL) {
IrpContext = FatCreateIrpContext( Irp, CanFsdWait(Irp) );
IrpContext->TopLevel = TopLevel;
}
#ifdef __ND_FAT_SECONDARY__
if (IS_SECONDARY_FILEOBJECT(IoGetCurrentIrpStackLocation(Irp)->FileObject)) {
BOOLEAN secondaryResourceAcquired = FALSE;
BOOLEAN secondaryRecoveryResourceAcquired = FALSE;
ASSERT( FatIsTopLevelRequest(IrpContext) );
#ifdef __ND_FAT_DBG__
ASSERT( FlagOn(IrpContext->NdFatFlags, ND_FAT_IRP_CONTEXT_FLAG_SECONDARY_FILE) );
#endif
Status = STATUS_SUCCESS;
while (TRUE) {
ASSERT( secondaryRecoveryResourceAcquired == FALSE );
ASSERT( secondaryResourceAcquired == FALSE );
if (FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ||
FlagOn(VolumeDeviceObject->Secondary->Flags, SECONDARY_FLAG_RECONNECTING)) {
if(!FlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT)) {
Status = FatFsdPostRequest( IrpContext, Irp );
break;
}
}
if (FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED)) {
secondaryRecoveryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( IrpContext,
&VolumeDeviceObject->Secondary->RecoveryResource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
if (!FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ) {
SecondaryReleaseResourceLite( IrpContext, &VolumeDeviceObject->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( IrpContext,
&VolumeDeviceObject->Secondary->Resource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
try {
SessionRecovery( VolumeDeviceObject->Secondary, IrpContext );
} finally {
SecondaryReleaseResourceLite( IrpContext, &VolumeDeviceObject->Secondary->Resource );
secondaryResourceAcquired = FALSE;
SecondaryReleaseResourceLite( IrpContext, &VolumeDeviceObject->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
}
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceSharedLite( IrpContext,
&VolumeDeviceObject->Secondary->Resource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
if (secondaryResourceAcquired == FALSE) {
ASSERT( FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ||
FlagOn(VolumeDeviceObject->Secondary->Flags, SECONDARY_FLAG_RECONNECTING) );
continue;
}
break;
}
if (Status == STATUS_SUCCESS) {
try {
Status = FatCommonFlushBuffers( IrpContext, Irp );
} finally {
ASSERT( ExIsResourceAcquiredSharedLite(&VolumeDeviceObject->Secondary->Resource) );
SecondaryReleaseResourceLite( NULL, &VolumeDeviceObject->Secondary->Resource );
}
}
} else
Status = FatCommonFlushBuffers( IrpContext, Irp );
#else
Status = FatCommonFlushBuffers( IrpContext, Irp );
#endif
break;
} except(FatExceptionFilter( IrpContext, GetExceptionInformation() )) {
//
// We had some trouble trying to perform the requested
// operation, so we'll abort the I/O request with
// the error status that we get back from the
// execption code
//
Status = FatProcessException( IrpContext, Irp, GetExceptionCode() );
}
} while (Status == STATUS_CANT_WAIT);
VOID
FatFspDispatch (
IN PVOID Context
)
/*++
Routine Description:
This is the main FSP thread routine that is executed to receive
and dispatch IRP requests. Each FSP thread begins its execution here.
There is one thread created at system initialization time and subsequent
threads created as needed.
Arguments:
Context - Supplies the thread id.
Return Value:
None - This routine never exits
--*/
{
NTSTATUS Status;
PIRP Irp;
PIRP_CONTEXT IrpContext;
PIO_STACK_LOCATION IrpSp;
BOOLEAN VcbDeleted;
PVOLUME_DEVICE_OBJECT VolDo;
IrpContext = (PIRP_CONTEXT)Context;
Irp = IrpContext->OriginatingIrp;
IrpSp = IoGetCurrentIrpStackLocation( Irp );
//
// Now because we are the Fsp we will force the IrpContext to
// indicate true on Wait.
//
SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT | IRP_CONTEXT_FLAG_IN_FSP);
//
// If this request has an associated volume device object, remember it.
//
if ( IrpSp->FileObject != NULL ) {
VolDo = CONTAINING_RECORD( IrpSp->DeviceObject,
VOLUME_DEVICE_OBJECT,
DeviceObject );
} else {
VolDo = NULL;
}
//
// Now case on the function code. For each major function code,
// either call the appropriate FSP routine or case on the minor
// function and then call the FSP routine. The FSP routine that
// we call is responsible for completing the IRP, and not us.
// That way the routine can complete the IRP and then continue
// post processing as required. For example, a read can be
// satisfied right away and then read can be done.
//
// We'll do all of the work within an exception handler that
// will be invoked if ever some underlying operation gets into
// trouble (e.g., if FatReadSectorsSync has trouble).
//
while ( TRUE ) {
DebugTrace(0, Dbg, "FatFspDispatch: Irp = 0x%08lx\n", Irp);
//
// If this Irp was top level, note it in our thread local storage.
//
FsRtlEnterFileSystem();
if ( FlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_RECURSIVE_CALL) ) {
IoSetTopLevelIrp( (PIRP)FSRTL_FSP_TOP_LEVEL_IRP );
} else {
IoSetTopLevelIrp( Irp );
}
#ifdef __ND_FAT__
do {
#ifdef __ND_FAT_SECONDARY__
BOOLEAN secondaryResourceAcquired = FALSE;
#endif
try {
#ifdef __ND_FAT_SECONDARY__
Status = STATUS_SUCCESS;
if (Irp && IS_SECONDARY_FILEOBJECT(IoGetCurrentIrpStackLocation(Irp)->FileObject)) {
BOOLEAN secondaryRecoveryResourceAcquired = FALSE;
ASSERT( FatIsTopLevelRequest(IrpContext) );
#ifdef __ND_FAT_DBG__
ASSERT( FlagOn(IrpContext->NdFatFlags, ND_FAT_IRP_CONTEXT_FLAG_SECONDARY_FILE) );
#endif
while (TRUE) {
ASSERT( secondaryRecoveryResourceAcquired == FALSE );
ASSERT( secondaryResourceAcquired == FALSE );
if (FlagOn(VolDo->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED)) {
secondaryRecoveryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( IrpContext,
&VolDo->Secondary->RecoveryResource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
if (!FlagOn(VolDo->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ) {
SecondaryReleaseResourceLite( IrpContext, &VolDo->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( IrpContext,
&VolDo->Secondary->Resource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
try {
SessionRecovery( VolDo->Secondary, IrpContext );
} finally {
SecondaryReleaseResourceLite( IrpContext, &VolDo->Secondary->Resource );
secondaryResourceAcquired = FALSE;
SecondaryReleaseResourceLite( IrpContext, &VolDo->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
}
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceSharedLite( IrpContext,
&VolDo->Secondary->Resource,
BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT) );
ASSERT( secondaryResourceAcquired == TRUE );
break;
}
}
#endif
switch ( IrpContext->MajorFunction ) {
//
// For Create Operation,
//
case IRP_MJ_CREATE:
(VOID) FatCommonCreate( IrpContext, Irp );
break;
//
// For close operations. We do a little kludge here in case
// this close causes a volume to go away. It will NULL the
// VolDo local variable so that we will not try to look at
// the overflow queue.
//
case IRP_MJ_CLOSE:
{
PVCB Vcb;
PFCB Fcb;
PCCB Ccb;
TYPE_OF_OPEN TypeOfOpen;
//
// Extract and decode the file object
//
TypeOfOpen = FatDecodeFileObject( IrpSp->FileObject, &Vcb, &Fcb, &Ccb );
//
// Do the close. We have a slightly different format
// for this call because of the async closes.
//
Status = FatCommonClose( Vcb,
Fcb,
Ccb,
TypeOfOpen,
TRUE,
&VcbDeleted );
//
// If the VCB was deleted, do not try to access it later.
//
if (VcbDeleted) {
VolDo = NULL;
}
ASSERT(Status == STATUS_SUCCESS);
FatCompleteRequest( IrpContext, Irp, Status );
break;
}
//
// For read operations
//
case IRP_MJ_READ:
(VOID) FatCommonRead( IrpContext, Irp );
break;
//
// For write operations,
//
case IRP_MJ_WRITE:
(VOID) FatCommonWrite( IrpContext, Irp );
break;
//
// For Query Information operations,
//
case IRP_MJ_QUERY_INFORMATION:
(VOID) FatCommonQueryInformation( IrpContext, Irp );
break;
//
// For Set Information operations,
//
case IRP_MJ_SET_INFORMATION:
(VOID) FatCommonSetInformation( IrpContext, Irp );
break;
//
// For Query EA operations,
//
case IRP_MJ_QUERY_EA:
(VOID) FatCommonQueryEa( IrpContext, Irp );
break;
//
// For Set EA operations,
//
case IRP_MJ_SET_EA:
(VOID) FatCommonSetEa( IrpContext, Irp );
break;
//
// For Flush buffers operations,
//
case IRP_MJ_FLUSH_BUFFERS:
(VOID) FatCommonFlushBuffers( IrpContext, Irp );
break;
//
// For Query Volume Information operations,
//
case IRP_MJ_QUERY_VOLUME_INFORMATION:
(VOID) FatCommonQueryVolumeInfo( IrpContext, Irp );
break;
//
// For Set Volume Information operations,
//
case IRP_MJ_SET_VOLUME_INFORMATION:
(VOID) FatCommonSetVolumeInfo( IrpContext, Irp );
break;
//
// For File Cleanup operations,
//
case IRP_MJ_CLEANUP:
(VOID) FatCommonCleanup( IrpContext, Irp );
break;
//
// For Directory Control operations,
//
case IRP_MJ_DIRECTORY_CONTROL:
(VOID) FatCommonDirectoryControl( IrpContext, Irp );
break;
//
// For File System Control operations,
//
case IRP_MJ_FILE_SYSTEM_CONTROL:
(VOID) FatCommonFileSystemControl( IrpContext, Irp );
break;
//
// For Lock Control operations,
//
case IRP_MJ_LOCK_CONTROL:
(VOID) FatCommonLockControl( IrpContext, Irp );
break;
//
// For Device Control operations,
//
case IRP_MJ_DEVICE_CONTROL:
(VOID) FatCommonDeviceControl( IrpContext, Irp );
break;
//
// For the Shutdown operation,
//
case IRP_MJ_SHUTDOWN:
(VOID) FatCommonShutdown( IrpContext, Irp );
break;
//
// For plug and play operations.
//
case IRP_MJ_PNP:
//
// I don't believe this should ever occur, but allow for the unexpected.
//
(VOID) FatCommonPnp( IrpContext, Irp );
break;
//
// For any other major operations, return an invalid
// request.
//
default:
FatCompleteRequest( IrpContext, Irp, STATUS_INVALID_DEVICE_REQUEST );
break;
}
#ifdef __ND_FAT_SECONDARY__
if (secondaryResourceAcquired) {
SecondaryReleaseResourceLite( NULL, &VolDo->Secondary->Resource );
secondaryResourceAcquired = FALSE;
}
#endif
} except(FatExceptionFilter( IrpContext, GetExceptionInformation() )) {
#ifdef __ND_FAT_SECONDARY__
if (secondaryResourceAcquired) {
SecondaryReleaseResourceLite( NULL, &VolDo->Secondary->Resource );
secondaryResourceAcquired = FALSE;
}
#endif
//
// We had some trouble trying to perform the requested
// operation, so we'll abort the I/O request with
// the error status that we get back from the
// execption code.
//
Status = FatProcessException( IrpContext, Irp, GetExceptionCode() );
}
} while (Status == STATUS_CANT_WAIT);
NTSTATUS
NtfsFsdLockControl (
IN PVOLUME_DEVICE_OBJECT VolumeDeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine implements the FSD part of Lock Control.
Arguments:
VolumeDeviceObject - Supplies the volume device object where the
file exists
Irp - Supplies the Irp being processed
Return Value:
NTSTATUS - The FSD status for the IRP
--*/
{
TOP_LEVEL_CONTEXT TopLevelContext;
PTOP_LEVEL_CONTEXT ThreadTopLevelContext;
NTSTATUS Status = STATUS_SUCCESS;
PIRP_CONTEXT IrpContext = NULL;
#if __NDAS_NTFS__
if ((PVOID)NdasNtfsControlDeviceObject == VolumeDeviceObject) {
Status = Irp->IoStatus.Status = STATUS_NOT_SUPPORTED;
Irp->IoStatus.Information = 0;
IoCompleteRequest( Irp, IO_DISK_INCREMENT );
return Status;
}
#endif
ASSERT_IRP( Irp );
UNREFERENCED_PARAMETER( VolumeDeviceObject );
PAGED_CODE();
DebugTrace( +1, Dbg, ("NtfsFsdLockControl\n") );
//
// Call the common Lock Control routine
//
FsRtlEnterFileSystem();
ThreadTopLevelContext = NtfsInitializeTopLevelIrp( &TopLevelContext, FALSE, FALSE );
do {
try {
//
// We are either initiating this request or retrying it.
//
if (IrpContext == NULL) {
//
// Allocate and initialize the Irp.
//
NtfsInitializeIrpContext( Irp, CanFsdWait( Irp ), &IrpContext );
//
// Initialize the thread top level structure, if needed.
//
NtfsUpdateIrpContextWithTopLevel( IrpContext, ThreadTopLevelContext );
} else if (Status == STATUS_LOG_FILE_FULL) {
NtfsCheckpointForLogFileFull( IrpContext );
}
#if __NDAS_NTFS_SECONDARY__
if (IS_SECONDARY_FILEOBJECT(IoGetCurrentIrpStackLocation(Irp)->FileObject)) {
BOOLEAN secondaryResourceAcquired = FALSE;
BOOLEAN secondaryRecoveryResourceAcquired = FALSE;
ASSERT( NtfsIsTopLevelRequest(IrpContext) );
#if __NDAS_NTFS_DBG__
ASSERT( FlagOn(IrpContext->NdNtfsFlags, ND_NTFS_IRP_CONTEXT_FLAG_SECONDARY_FILE) );
#endif
Status = STATUS_SUCCESS;
while (TRUE) {
ASSERT( secondaryRecoveryResourceAcquired == FALSE );
ASSERT( secondaryResourceAcquired == FALSE );
if (FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ||
FlagOn(VolumeDeviceObject->Secondary->Flags, SECONDARY_FLAG_RECONNECTING)) {
if (!FlagOn(IrpContext->State, IRP_CONTEXT_STATE_WAIT)) {
Status = NtfsPostRequest( IrpContext, Irp );
break;
}
}
if (FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED)) {
secondaryRecoveryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( IrpContext,
&VolumeDeviceObject->Secondary->RecoveryResource,
BooleanFlagOn(IrpContext->State, IRP_CONTEXT_STATE_WAIT) );
if (!FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ) {
SecondaryReleaseResourceLite( IrpContext, &VolumeDeviceObject->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( IrpContext,
&VolumeDeviceObject->Secondary->Resource,
BooleanFlagOn(IrpContext->State, IRP_CONTEXT_STATE_WAIT) );
try {
SessionRecovery( VolumeDeviceObject->Secondary, IrpContext );
} finally {
SecondaryReleaseResourceLite( IrpContext, &VolumeDeviceObject->Secondary->Resource );
secondaryResourceAcquired = FALSE;
SecondaryReleaseResourceLite( IrpContext, &VolumeDeviceObject->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
}
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceSharedLite( IrpContext,
&VolumeDeviceObject->Secondary->Resource,
BooleanFlagOn(IrpContext->State, IRP_CONTEXT_STATE_WAIT) );
if (secondaryResourceAcquired == FALSE) {
ASSERT( FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ||
FlagOn(VolumeDeviceObject->Secondary->Flags, SECONDARY_FLAG_RECONNECTING) );
continue;
}
break;
}
if (Status == STATUS_SUCCESS) {
try {
Status = NtfsCommonLockControl( IrpContext, Irp );
} finally {
ASSERT( ExIsResourceAcquiredSharedLite(&VolumeDeviceObject->Secondary->Resource) );
SecondaryReleaseResourceLite( NULL, &VolumeDeviceObject->Secondary->Resource );
}
}
} else
Status = NtfsCommonLockControl( IrpContext, Irp );
#else
Status = NtfsCommonLockControl( IrpContext, Irp );
#endif
break;
} except(NtfsExceptionFilter( IrpContext, GetExceptionInformation() )) {
//
// We had some trouble trying to perform the requested
// operation, so we'll abort the I/O request with
// the error status that we get back from the
// execption code
//
Status = NtfsProcessException( IrpContext, Irp, GetExceptionCode() );
}
} while (Status == STATUS_CANT_WAIT ||
VOID
FatFspClose (
IN PVCB Vcb OPTIONAL
)
/*++
Routine Description:
This routine implements the FSP part of Close.
Arguments:
Vcb - If present, tells us to only close file objects opened on the
specified volume.
Return Value:
None.
--*/
{
PCLOSE_CONTEXT CloseContext;
PVCB CurrentVcb = NULL;
PVCB LastVcb = NULL;
BOOLEAN FreeContext;
ULONG LoopsWithVcbHeld;
DebugTrace(+1, Dbg, "FatFspClose\n", 0);
//
// Set the top level IRP for the true FSP operation.
//
if (!ARGUMENT_PRESENT( Vcb )) {
IoSetTopLevelIrp( (PIRP)FSRTL_FSP_TOP_LEVEL_IRP );
}
while (CloseContext = FatRemoveClose(Vcb, LastVcb)) {
#ifdef __ND_FAT_SECONDARY__
NTSTATUS Status;
#endif
//
// If we are in the FSP (i.e. Vcb == NULL), then try to keep ahead of
// creates by doing several closes with one acquisition of the Vcb.
//
// Note that we cannot be holding the Vcb on entry to FatCommonClose
// if this is last close as we will try to acquire FatData, and
// worse the volume (and therefore the Vcb) may go away.
//
if (!ARGUMENT_PRESENT(Vcb)) {
if (!FatData.ShutdownStarted) {
if (CloseContext->Vcb != CurrentVcb) {
LoopsWithVcbHeld = 0;
//
// Release a previously held Vcb, if any.
//
if (CurrentVcb != NULL) {
ExReleaseResourceLite( &CurrentVcb->Resource);
}
//
// Get the new Vcb.
//
CurrentVcb = CloseContext->Vcb;
(VOID)ExAcquireResourceExclusiveLite( &CurrentVcb->Resource, TRUE );
} else {
//
// Share the resource occasionally if we seem to be finding a lot
// of closes for a single volume.
//
if (++LoopsWithVcbHeld >= 20) {
if (ExGetSharedWaiterCount( &CurrentVcb->Resource ) +
ExGetExclusiveWaiterCount( &CurrentVcb->Resource )) {
ExReleaseResourceLite( &CurrentVcb->Resource);
(VOID)ExAcquireResourceExclusiveLite( &CurrentVcb->Resource, TRUE );
}
LoopsWithVcbHeld = 0;
}
}
//
// Now check the Open count. We may be about to delete this volume!
//
// The test below must be <= 1 because there could still be outstanding
// stream references on this VCB that are not counted in the OpenFileCount.
// For example if there are no open files OpenFileCount could be zero and we would
// not release the resource here. The call to FatCommonClose() below may cause
// the VCB to be torn down and we will try to release memory we don't
// own later.
//
if (CurrentVcb->OpenFileCount <= 1) {
ExReleaseResourceLite( &CurrentVcb->Resource);
CurrentVcb = NULL;
}
//
// If shutdown has started while processing our list, drop the
// current Vcb resource.
//
} else if (CurrentVcb != NULL) {
ExReleaseResourceLite( &CurrentVcb->Resource);
CurrentVcb = NULL;
}
}
LastVcb = CurrentVcb;
//
// Call the common Close routine. Protected in a try {} except {}
//
try {
//
// The close context either is in the CCB, automatically freed,
// or was from pool for a metadata fileobject, CCB is NULL, and
// we'll need to free it.
//
FreeContext = CloseContext->Free;
#ifdef __ND_FAT_SECONDARY__
if (CloseContext->Fcb && FlagOn(CloseContext->Fcb->NdFatFlags, ND_FAT_FCB_FLAG_SECONDARY)) {
PVOLUME_DEVICE_OBJECT VolumeDeviceObject = (CONTAINING_RECORD(CloseContext->Vcb, VOLUME_DEVICE_OBJECT, Vcb));
BOOLEAN secondaryResourceAcquired = FALSE;
BOOLEAN secondaryRecoveryResourceAcquired = FALSE;
ASSERT( FreeContext == FALSE );
Status = STATUS_SUCCESS;
while (TRUE) {
ASSERT( secondaryRecoveryResourceAcquired == FALSE );
ASSERT( secondaryResourceAcquired == FALSE );
if (FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED)) {
if (FlagOn(VolumeDeviceObject->Vcb.NdFatFlags, ND_FAT_VCB_FLAG_TRY_CLOSE_FILES)) {
Status = STATUS_CANT_WAIT;
break;
}
secondaryRecoveryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( NULL,
&VolumeDeviceObject->Secondary->RecoveryResource,
TRUE );
if (!FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ) {
SecondaryReleaseResourceLite( NULL, &VolumeDeviceObject->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceExclusiveLite( NULL,
&VolumeDeviceObject->Secondary->Resource,
TRUE );
try {
SessionRecovery( VolumeDeviceObject->Secondary, NULL );
} finally {
SecondaryReleaseResourceLite( NULL, &VolumeDeviceObject->Secondary->Resource );
secondaryResourceAcquired = FALSE;
SecondaryReleaseResourceLite( NULL, &VolumeDeviceObject->Secondary->RecoveryResource );
secondaryRecoveryResourceAcquired = FALSE;
}
continue;
}
secondaryResourceAcquired
= SecondaryAcquireResourceSharedLite( NULL,
&VolumeDeviceObject->Secondary->Resource,
TRUE );
if (secondaryResourceAcquired == FALSE) {
ASSERT( FlagOn(VolumeDeviceObject->Secondary->Thread.Flags, SECONDARY_THREAD_FLAG_REMOTE_DISCONNECTED) ||
FlagOn(VolumeDeviceObject->Secondary->Flags, SECONDARY_FLAG_RECONNECTING) );
continue;
}
break;
}
if (Status == STATUS_SUCCESS) {
try {
Status = FatCommonClose( CloseContext->Vcb,
CloseContext->Fcb,
(FreeContext ? NULL :
CONTAINING_RECORD( CloseContext, CCB, CloseContext)),
CloseContext->TypeOfOpen,
TRUE,
NULL );
} finally {
ASSERT( ExIsResourceAcquiredSharedLite(&VolumeDeviceObject->Secondary->Resource) );
SecondaryReleaseResourceLite( NULL, &VolumeDeviceObject->Secondary->Resource );
}
}
} else
Status = FatCommonClose( CloseContext->Vcb,
CloseContext->Fcb,
(FreeContext ? NULL :
CONTAINING_RECORD( CloseContext, CCB, CloseContext)),
CloseContext->TypeOfOpen,
TRUE,
NULL );
#else
(VOID)FatCommonClose( CloseContext->Vcb,
CloseContext->Fcb,
(FreeContext ? NULL :
CONTAINING_RECORD( CloseContext, CCB, CloseContext)),
CloseContext->TypeOfOpen,
TRUE,
NULL );
#endif
} except(FatExceptionFilter( NULL, GetExceptionInformation() )) {
//
// Ignore anything we expect.
//
NOTHING;
}
//
// Drop the context if it came from pool.
//
#ifdef __ND_FAT_SECONDARY__
if (Status == STATUS_CANT_WAIT) {
ASSERT( FreeContext == FALSE );
ASSERT( CloseContext->Fcb && FlagOn(CloseContext->Fcb->FcbState, FCB_STATE_DELAY_CLOSE) );
FatQueueClose( CloseContext,
(BOOLEAN)(CloseContext->Fcb && FlagOn(CloseContext->Fcb->FcbState, FCB_STATE_DELAY_CLOSE)) );
break;
}
if (FreeContext) {
ExFreePool( CloseContext );
}
#else
if (FreeContext) {
ExFreePool( CloseContext );
}
#endif
}