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sys: FspIrpContext*

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This commit is contained in:
Bill Zissimopoulos 2015-12-07 13:19:17 -08:00
parent 6fcab43120
commit 253de21708
5 changed files with 17 additions and 14 deletions
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5
src/sys/create.c
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@ -346,7 +346,7 @@ NTSTATUS FspFsvolCreatePrepare(
} }
/* send the user-mode handle to the user-mode file system */ /* send the user-mode handle to the user-mode file system */
Irp->Tail.Overlay.DriverContext[1] = UserModeAccessToken; FspIrpContextHandle(Irp) = UserModeAccessToken;
Request->Req.Create.AccessToken = (UINT_PTR)UserModeAccessToken; Request->Req.Create.AccessToken = (UINT_PTR)UserModeAccessToken;
FSP_LEAVE_IOP(); FSP_LEAVE_IOP();
@ -388,8 +388,7 @@ VOID FspFsvolCreateComplete(
ULONG Flags = IrpSp->Flags; ULONG Flags = IrpSp->Flags;
KPROCESSOR_MODE RequestorMode = KPROCESSOR_MODE RequestorMode =
FlagOn(Flags, SL_FORCE_ACCESS_CHECK) ? UserMode : Irp->RequestorMode; FlagOn(Flags, SL_FORCE_ACCESS_CHECK) ? UserMode : Irp->RequestorMode;
BOOLEAN HasTrailingBackslash = BOOLEAN HasTrailingBackslash = 0 != FspIrpContextRequest(Irp)->Req.Create.HasTrailingBackslash;
0 != ((FSP_FSCTL_TRANSACT_REQ *)Irp->Tail.Overlay.DriverContext[0])->Req.Create.HasTrailingBackslash;
FSP_FILE_CONTEXT *FsContext = FileObject->FsContext; FSP_FILE_CONTEXT *FsContext = FileObject->FsContext;
ACCESS_MASK GrantedAccess; ACCESS_MASK GrantedAccess;
BOOLEAN Inserted = FALSE; BOOLEAN Inserted = FALSE;

4
src/sys/driver.h
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@ -263,6 +263,10 @@ PIRP FspIoqEndProcessingIrp(FSP_IOQ *Ioq, UINT_PTR IrpHint);
/* I/O processing */ /* I/O processing */
#define FSP_FSCTL_WORK \ #define FSP_FSCTL_WORK \
CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0x800 + 'W', METHOD_NEITHER, FILE_ANY_ACCESS) CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0x800 + 'W', METHOD_NEITHER, FILE_ANY_ACCESS)
#define FspIrpContextRequest(Irp) \
(*(FSP_FSCTL_TRANSACT_REQ **)&(Irp)->Tail.Overlay.DriverContext[0])
#define FspIrpContextHandle(Irp) \
(*(HANDLE *)&(Irp)->Tail.Overlay.DriverContext[1])
NTSTATUS FspIopCreateRequest( NTSTATUS FspIopCreateRequest(
PIRP Irp, PUNICODE_STRING FileName, ULONG ExtraSize, FSP_FSCTL_TRANSACT_REQ **PRequest); PIRP Irp, PUNICODE_STRING FileName, ULONG ExtraSize, FSP_FSCTL_TRANSACT_REQ **PRequest);
NTSTATUS FspIopPostWorkRequest(PDEVICE_OBJECT DeviceObject, FSP_FSCTL_TRANSACT_REQ *Request); NTSTATUS FspIopPostWorkRequest(PDEVICE_OBJECT DeviceObject, FSP_FSCTL_TRANSACT_REQ *Request);

2
src/sys/fsctl.c
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@ -391,7 +391,7 @@ retry:
ASSERT((PUINT8)Request + FSP_FSCTL_TRANSACT_REQ_SIZEMAX <= SystemBufferEnd); ASSERT((PUINT8)Request + FSP_FSCTL_TRANSACT_REQ_SIZEMAX <= SystemBufferEnd);
for (;;) for (;;)
{ {
PendingIrpRequest = PendingIrp->Tail.Overlay.DriverContext[0]; PendingIrpRequest = FspIrpContextRequest(PendingIrp);
Result = FspIopDispatchPrepare(PendingIrp, PendingIrpRequest); Result = FspIopDispatchPrepare(PendingIrp, PendingIrpRequest);
if (!NT_SUCCESS(Result)) if (!NT_SUCCESS(Result))

4
src/sys/idevctl.c
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@ -42,7 +42,7 @@ static NTSTATUS FspFsvolInternalDeviceControl(
/* associate the passed Request with our Irp; acquire ownership of the Request */ /* associate the passed Request with our Irp; acquire ownership of the Request */
Request->Hint = (UINT_PTR)Irp; Request->Hint = (UINT_PTR)Irp;
Irp->Tail.Overlay.DriverContext[0] = Request; FspIrpContextRequest(Irp) = Request;
if (!FspIoqPostIrp(&FsvrtDeviceExtension->Ioq, Irp)) if (!FspIoqPostIrp(&FsvrtDeviceExtension->Ioq, Irp))
{ {
@ -51,7 +51,7 @@ static NTSTATUS FspFsvolInternalDeviceControl(
/* disocciate the Request from our Irp; release ownership back to caller */ /* disocciate the Request from our Irp; release ownership back to caller */
Request->Hint = 0; Request->Hint = 0;
Irp->Tail.Overlay.DriverContext[0] = 0; FspIrpContextRequest(Irp) = 0;
Result = STATUS_CANCELLED; Result = STATUS_CANCELLED;
goto exit; goto exit;

16
src/sys/iop.c
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@ -58,7 +58,7 @@ NTSTATUS FspIopCreateRequest(
} }
if (0 != Irp) if (0 != Irp)
Irp->Tail.Overlay.DriverContext[0] = Request; FspIrpContextRequest(Irp) = Request;
*PRequest = Request; *PRequest = Request;
return STATUS_SUCCESS; return STATUS_SUCCESS;
@ -125,24 +125,24 @@ VOID FspIopCompleteIrpEx(PIRP Irp, NTSTATUS Result, BOOLEAN DeviceRelease)
ASSERT(STATUS_PENDING != Result); ASSERT(STATUS_PENDING != Result);
ASSERT(0 == Irp->Tail.Overlay.DriverContext[3]); ASSERT(0 == Irp->Tail.Overlay.DriverContext[3]);
if (0 != Irp->Tail.Overlay.DriverContext[0]) if (0 != FspIrpContextRequest(Irp))
{ {
FspIopDeleteRequest(Irp->Tail.Overlay.DriverContext[0]); FspIopDeleteRequest(FspIrpContextRequest(Irp));
Irp->Tail.Overlay.DriverContext[0] = 0; FspIrpContextRequest(Irp) = 0;
} }
if (0 != Irp->Tail.Overlay.DriverContext[1]) if (0 != FspIrpContextHandle(Irp))
{ {
#if DBG #if DBG
NTSTATUS Result0; NTSTATUS Result0;
Result0 = ObCloseHandle(Irp->Tail.Overlay.DriverContext[1], KernelMode); Result0 = ObCloseHandle(FspIrpContextHandle(Irp), KernelMode);
if (!NT_SUCCESS(Result0)) if (!NT_SUCCESS(Result0))
DEBUGLOG("ObCloseHandle() = %s", NtStatusSym(Result0)); DEBUGLOG("ObCloseHandle() = %s", NtStatusSym(Result0));
#else #else
ObCloseHandle(Irp->Tail.Overlay.DriverContext[1], KernelMode); ObCloseHandle(FspIrpContextHandle(Irp), KernelMode);
#endif #endif
Irp->Tail.Overlay.DriverContext[1] = 0; FspIrpContextHandle(Irp) = 0;
} }
PDEVICE_OBJECT DeviceObject = IoGetCurrentIrpStackLocation(Irp)->DeviceObject; PDEVICE_OBJECT DeviceObject = IoGetCurrentIrpStackLocation(Irp)->DeviceObject;