mirror of
https://github.com/reactos/reactos.git
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a7532a398b
- Add directory path parsing which tries to find existing FCBs for path names. - Add a framework for creating DCBs during path dissection. Currently just prints out path names. - Cleanup fcb.c, Alexey Vlasov's version was great, but it is a bit different from what I want to implement now. svn path=/trunk/; revision=43225
296 lines
7.2 KiB
C
296 lines
7.2 KiB
C
#include <ntifs.h>
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#include <ntdddisk.h>
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#include <debug.h>
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#include <pseh/pseh2.h>
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#include "fullfat.h"
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#include <fat.h>
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#include <fatstruc.h>
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#define Add2Ptr(P,I,T) ((T)((PUCHAR)(P) + (I)))
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#define PtrOffset(B,O) ((ULONG)((ULONG_PTR)(O) - (ULONG_PTR)(B)))
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#define TAG_CCB 'BCCV'
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#define TAG_FCB 'BCFV'
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#define TAG_IRP 'PRIV'
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#define TAG_VFAT 'TAFV'
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/* Global resource acquire/release */
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#define FatAcquireExclusiveGlobal(IrpContext) \
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( \
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ExAcquireResourceExclusiveLite(&FatGlobalData.Resource, \
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(IrpContext)->Flags & IRPCONTEXT_CANWAIT) \
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)
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#define FatAcquireSharedGlobal(IrpContext) \
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( \
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ExAcquireResourceSharedLite(&FatGlobalData.Resource, \
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(IrpContext)->Flags & IRPCONTEXT_CANWAIT) \
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)
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#define FatReleaseGlobal(IrpContext) \
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{ \
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ExReleaseResourceLite(&(FatGlobalData.Resource)); \
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}
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/* ------------------------------------------------------ shutdown.c */
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DRIVER_DISPATCH FatShutdown;
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NTSTATUS NTAPI
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FatShutdown(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* -------------------------------------------------------- volume.c */
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NTSTATUS NTAPI
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FatQueryVolumeInfo(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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NTSTATUS NTAPI
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FatSetVolumeInfo(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* ------------------------------------------------------ blockdev.c */
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NTSTATUS
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NTAPI
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FatPerformLboIo(
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IN PFAT_IRP_CONTEXT IrpContext,
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IN PLARGE_INTEGER Offset,
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IN SIZE_T Length);
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NTSTATUS
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FatPerformVirtualNonCachedIo(
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IN PFAT_IRP_CONTEXT IrpContext,
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IN PFCB Fcb,
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IN PLARGE_INTEGER Offset,
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IN SIZE_T Length);
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PVOID
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FatMapUserBuffer(
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IN OUT PIRP Irp);
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/* ----------------------------------------------------------- dir.c */
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NTSTATUS NTAPI
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FatDirectoryControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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VOID NTAPI
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FatCreateRootDcb(IN PFAT_IRP_CONTEXT IrpContext,
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IN PVCB Vcb);
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/* -------------------------------------------------------- create.c */
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NTSTATUS NTAPI
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FatCreate(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* --------------------------------------------------------- close.c */
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NTSTATUS NTAPI
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FatClose(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* ------------------------------------------------------- cleanup.c */
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NTSTATUS NTAPI
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FatCleanup(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* --------------------------------------------------------- fastio.c */
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VOID
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FatInitFastIoRoutines(PFAST_IO_DISPATCH FastIoDispatch);
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BOOLEAN NTAPI
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FatAcquireForLazyWrite(IN PVOID Context,
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IN BOOLEAN Wait);
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VOID NTAPI
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FatReleaseFromLazyWrite(IN PVOID Context);
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BOOLEAN NTAPI
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FatAcquireForReadAhead(IN PVOID Context,
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IN BOOLEAN Wait);
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VOID NTAPI
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FatReleaseFromReadAhead(IN PVOID Context);
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BOOLEAN NTAPI
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FatNoopAcquire(IN PVOID Context,
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IN BOOLEAN Wait);
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VOID NTAPI
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FatNoopRelease(IN PVOID Context);
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/* --------------------------------------------------------- fastfat.c */
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PFAT_IRP_CONTEXT NTAPI
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FatBuildIrpContext(PIRP Irp, BOOLEAN CanWait);
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VOID NTAPI
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FatDestroyIrpContext(PFAT_IRP_CONTEXT IrpContext);
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VOID
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NTAPI
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FatQueueRequest(IN PFAT_IRP_CONTEXT IrpContext,
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IN PFAT_OPERATION_HANDLER OperationHandler);
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VOID NTAPI
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FatCompleteRequest(PFAT_IRP_CONTEXT IrpContext OPTIONAL,
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PIRP Irp OPTIONAL,
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NTSTATUS Status);
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BOOLEAN NTAPI
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FatAcquireExclusiveVcb(IN PFAT_IRP_CONTEXT IrpContext,
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IN PVCB Vcb);
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VOID NTAPI
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FatReleaseVcb(IN PFAT_IRP_CONTEXT IrpContext,
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IN PVCB Vcb);
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TYPE_OF_OPEN
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NTAPI
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FatDecodeFileObject(IN PFILE_OBJECT FileObject,
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OUT PVCB *Vcb,
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OUT PFCB *FcbOrDcb,
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OUT PCCB *Ccb);
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/* --------------------------------------------------------- fcb.c */
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PFCB NTAPI
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FatFindFcb(PFAT_IRP_CONTEXT IrpContext,
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PRTL_SPLAY_LINKS *RootNode,
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PSTRING AnsiName,
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PBOOLEAN IsDosName);
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/* --------------------------------------------------------- fullfat.c */
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FF_T_SINT32
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FatWriteBlocks(FF_T_UINT8 *pBuffer, FF_T_UINT32 SectorAddress, FF_T_UINT32 Count, void *pParam);
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FF_T_SINT32
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FatReadBlocks(FF_T_UINT8 *pBuffer, FF_T_UINT32 SectorAddress, FF_T_UINT32 Count, void *pParam);
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/* --------------------------------------------------------- lock.c */
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NTSTATUS NTAPI
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FatLockControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* --------------------------------------------------------- fsctl.c */
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NTSTATUS NTAPI
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FatFileSystemControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* --------------------------------------------------------- finfo.c */
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NTSTATUS NTAPI FatQueryInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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NTSTATUS NTAPI FatSetInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* --------------------------------------------------------- iface.c */
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NTSTATUS
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NTAPI
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DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath);
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/* ----------------------------------------------------------- fat.c */
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PVOID
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FatPinPage(
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PFAT_PAGE_CONTEXT Context,
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LONGLONG ByteOffset);
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PVOID
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FatPinNextPage(
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PFAT_PAGE_CONTEXT Context);
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NTSTATUS
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FatInitializeVcb(
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IN PFAT_IRP_CONTEXT IrpContext,
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IN PVCB Vcb,
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IN PDEVICE_OBJECT TargetDeviceObject,
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IN PVPB Vpb);
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VOID
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FatUninitializeVcb(
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IN PVCB Vcb);
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ULONG
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FatScanFat(
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IN PFCB Fcb,
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IN LONGLONG Vbo, OUT PLONGLONG Lbo,
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IN OUT PLONGLONG Length,
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OUT PULONG Index,
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IN BOOLEAN CanWait);
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/* ------------------------------------------------------ device.c */
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NTSTATUS NTAPI
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FatDeviceControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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NTSTATUS
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FatPerformDevIoCtrl(PDEVICE_OBJECT DeviceObject,
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ULONG ControlCode,
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PVOID InputBuffer,
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ULONG InputBufferSize,
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PVOID OutputBuffer,
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ULONG OutputBufferSize,
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BOOLEAN Override);
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/* ------------------------------------------------------ direntry.c */
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VOID
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FatFindDirent(IN OUT PFAT_FIND_DIRENT_CONTEXT Context,
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OUT PDIR_ENTRY* Dirent,
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OUT PUNICODE_STRING LongFileName OPTIONAL);
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VOID
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FatEnumerateDirents(IN OUT PFAT_ENUM_DIRENT_CONTEXT Context,
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IN SIZE_T Offset);
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VOID
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FatQueryFileTimes(OUT PLARGE_INTEGER FileTimes,
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IN PDIR_ENTRY Dirent);
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/* ----------------------------------------------------------- fcb.c */
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PFCB
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FatLookupFcbByName(
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IN PFCB ParentFcb,
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IN PUNICODE_STRING Name);
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BOOLEAN
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FatLinkFcbNames(
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IN PFCB ParentFcb,
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IN PFCB Fcb);
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VOID
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FatUnlinkFcbNames(
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IN PFCB ParentFcb,
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IN PFCB Fcb);
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NTSTATUS
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FatCreateFcb(
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OUT PFCB* CreatedFcb,
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IN PFAT_IRP_CONTEXT IrpContext,
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IN PFCB ParentFcb,
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IN PDIR_ENTRY Dirent,
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IN PUNICODE_STRING FileName,
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IN PUNICODE_STRING LongFileName OPTIONAL);
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NTSTATUS
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FatOpenFcb(
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OUT PFCB* Fcb,
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IN PFAT_IRP_CONTEXT IrpContext,
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IN PFCB ParentFcb,
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IN PUNICODE_STRING FileName);
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/* ------------------------------------------------------------ rw.c */
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NTSTATUS NTAPI
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FatRead(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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NTSTATUS NTAPI
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FatWrite(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* ------------------------------------------------------------- flush.c */
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NTSTATUS NTAPI
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FatFlushBuffers(PDEVICE_OBJECT DeviceObject, PIRP Irp);
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/* EOF */
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