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Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.
This commit is contained in:
Colin Finck
parent
b94e2d8ca0
commit
c2c66aff7d
24198 changed files with 0 additions and 37285 deletions
273
drivers/filesystems/ext2/src/except.c
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273
drivers/filesystems/ext2/src/except.c
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/*
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* COPYRIGHT: See COPYRIGHT.TXT
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* PROJECT: Ext2 File System Driver for WinNT/2K/XP
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* FILE: except.c
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* PROGRAMMER: Matt Wu <mattwu@163.com>
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* HOMEPAGE: http://www.ext2fsd.com
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* UPDATE HISTORY:
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*/
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/* INCLUDES *****************************************************************/
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#include "ext2fs.h"
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/* GLOBALS ***************************************************************/
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extern PEXT2_GLOBAL Ext2Global;
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/* DEFINITIONS *************************************************************/
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NTSTATUS
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Ext2ExceptionFilter (
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IN PEXT2_IRP_CONTEXT IrpContext,
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IN PEXCEPTION_POINTERS ExceptionPointer
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)
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{
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NTSTATUS Status = EXCEPTION_EXECUTE_HANDLER;
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NTSTATUS ExceptionCode;
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PEXCEPTION_RECORD ExceptRecord;
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ExceptRecord = ExceptionPointer->ExceptionRecord;
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ExceptionCode = ExceptRecord->ExceptionCode;
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DbgPrint("-------------------------------------------------------------\n");
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DbgPrint("Exception happends in Ext2Fsd (code %xh):\n", ExceptionCode);
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DbgPrint(".exr %p;.cxr %p;\n", ExceptionPointer->ExceptionRecord,
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ExceptionPointer->ContextRecord);
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DbgPrint("-------------------------------------------------------------\n");
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DbgBreak();
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//
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// Check IrpContext is valid or not
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//
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if (IrpContext) {
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if ((IrpContext->Identifier.Type != EXT2ICX) ||
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(IrpContext->Identifier.Size != sizeof(EXT2_IRP_CONTEXT))) {
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DbgBreak();
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IrpContext = NULL;
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} else if (IrpContext->DeviceObject) {
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PEXT2_VCB Vcb = NULL;
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Vcb = (PEXT2_VCB) IrpContext->DeviceObject->DeviceExtension;
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if (NULL == Vcb) {
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Status = EXCEPTION_EXECUTE_HANDLER;
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} else {
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if (Vcb->Identifier.Type == EXT2VCB && !IsMounted(Vcb)) {
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Status = EXCEPTION_EXECUTE_HANDLER;
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}
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}
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}
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} else {
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if (FsRtlIsNtstatusExpected(ExceptionCode)) {
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return EXCEPTION_EXECUTE_HANDLER;
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} else {
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Ext2BugCheck( EXT2_BUGCHK_EXCEPT, (ULONG_PTR)ExceptRecord,
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(ULONG_PTR)ExceptionPointer->ContextRecord,
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(ULONG_PTR)ExceptRecord->ExceptionAddress );
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}
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}
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if (IrpContext) {
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SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
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}
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if ( Status == EXCEPTION_EXECUTE_HANDLER ||
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FsRtlIsNtstatusExpected(ExceptionCode)) {
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//
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// If the exception is expected execute our handler
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//
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DEBUG(DL_ERR, ( "Ext2ExceptionFilter: Catching exception %xh\n",
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ExceptionCode));
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Status = EXCEPTION_EXECUTE_HANDLER;
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if (IrpContext) {
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IrpContext->ExceptionInProgress = TRUE;
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IrpContext->ExceptionCode = ExceptionCode;
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}
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} else {
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//
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// Continue search for an higher level exception handler
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//
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DEBUG(DL_ERR, ( "Ext2ExceptionFilter: Passing on exception %#x\n",
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ExceptionCode));
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Status = EXCEPTION_CONTINUE_SEARCH;
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if (IrpContext) {
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Ext2FreeIrpContext(IrpContext);
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}
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}
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return Status;
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}
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NTSTATUS
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Ext2ExceptionHandler (IN PEXT2_IRP_CONTEXT IrpContext)
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{
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NTSTATUS Status;
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if (IrpContext) {
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if ( (IrpContext->Identifier.Type != EXT2ICX) ||
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(IrpContext->Identifier.Size != sizeof(EXT2_IRP_CONTEXT))) {
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DbgBreak();
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return STATUS_UNSUCCESSFUL;
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}
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Status = IrpContext->ExceptionCode;
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if (IrpContext->Irp) {
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//
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// Check if this error is a result of user actions
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//
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PEXT2_VCB Vcb = NULL;
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PIRP Irp = IrpContext->Irp;
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PIO_STACK_LOCATION IrpSp;
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IrpSp = IoGetCurrentIrpStackLocation(Irp);
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Vcb = (PEXT2_VCB) IrpContext->DeviceObject->DeviceExtension;
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if (NULL == Vcb) {
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Status = STATUS_INVALID_PARAMETER;
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} else if (Vcb->Identifier.Type != EXT2VCB) {
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Status = STATUS_INVALID_PARAMETER;
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} else if (!IsMounted(Vcb)) {
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if (IsFlagOn(Vcb->Flags, VCB_DEVICE_REMOVED)) {
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Status = STATUS_NO_SUCH_DEVICE;
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} else {
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Status = STATUS_VOLUME_DISMOUNTED;
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}
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} else {
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/* queue it again if our request is at top level */
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if (IrpContext->IsTopLevel &&
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((Status == STATUS_CANT_WAIT) ||
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((Status == STATUS_VERIFY_REQUIRED) &&
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(KeGetCurrentIrql() >= APC_LEVEL)))) {
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Status = Ext2QueueRequest(IrpContext);
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}
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}
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if (Status == STATUS_PENDING) {
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goto errorout;
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}
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Irp->IoStatus.Status = Status;
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if (IoIsErrorUserInduced(Status)) {
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//
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// Now we will generate a pop-up to user
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//
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PDEVICE_OBJECT RealDevice;
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PVPB Vpb = NULL;
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PETHREAD Thread;
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if (IrpSp->FileObject != NULL) {
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Vpb = IrpSp->FileObject->Vpb;
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}
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//
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// Get the initial thread
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//
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Thread = Irp->Tail.Overlay.Thread;
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RealDevice = IoGetDeviceToVerify( Thread );
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if (RealDevice == NULL) {
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//
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// Get current thread
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//
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Thread = PsGetCurrentThread();
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RealDevice = IoGetDeviceToVerify( Thread );
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ASSERT( RealDevice != NULL );
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}
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Status = IrpContext->ExceptionCode;
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if (RealDevice != NULL) {
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if (IrpContext->ExceptionCode == STATUS_VERIFY_REQUIRED) {
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Status = IoVerifyVolume (RealDevice, FALSE);
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ExAcquireResourceSharedLite(&Vcb->MainResource, TRUE);
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if (NT_SUCCESS(Status) && (!IsMounted(Vcb) ||
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IsFlagOn(Vcb->Flags, VCB_DISMOUNT_PENDING))) {
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Status = STATUS_WRONG_VOLUME;
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}
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ExReleaseResourceLite(&Vcb->MainResource);
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if (Ext2CheckDismount(IrpContext, Vcb, FALSE)) {
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Ext2CompleteIrpContext( IrpContext, STATUS_VOLUME_DISMOUNTED);
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Status = STATUS_VOLUME_DISMOUNTED;
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Irp = NULL;
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goto errorout;
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}
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if ( (IrpContext->MajorFunction == IRP_MJ_CREATE) &&
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(IrpContext->FileObject->RelatedFileObject == NULL) &&
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((Status == STATUS_SUCCESS) || (Status == STATUS_WRONG_VOLUME))) {
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Irp->IoStatus.Information = IO_REMOUNT;
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Ext2CompleteIrpContext( IrpContext, STATUS_REPARSE);
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Status = STATUS_REPARSE;
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Irp = NULL;
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}
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if (Irp) {
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if (!NT_SUCCESS(Status)) {
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IoSetHardErrorOrVerifyDevice(Irp, RealDevice);
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ASSERT (STATUS_VERIFY_REQUIRED != Status);
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Ext2NormalizeAndRaiseStatus(IrpContext, Status);
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}
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Status = Ext2QueueRequest(IrpContext);
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}
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goto errorout;
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} else {
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Status = STATUS_PENDING;
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IoMarkIrpPending( Irp );
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IoRaiseHardError( Irp, Vpb, RealDevice );
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IoSetDeviceToVerify( Thread, NULL );
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goto release_context;
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}
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}
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}
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Ext2CompleteRequest(Irp, FALSE, IO_NO_INCREMENT);
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}
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release_context:
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Ext2FreeIrpContext(IrpContext);
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} else {
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Status = STATUS_INVALID_PARAMETER;
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}
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errorout:
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return Status;
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}
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