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Annotation of truecrypt/driver/ntrawdv.c, revision 1.1

1.1     ! root        1: /* Copyright (C) 2004 TrueCrypt Team, truecrypt.org
        !             2:    This product uses components written by Paul Le Roux <[email protected]> */
        !             3: 
        !             4: #include "TCdefs.h"
        !             5: #include "crypto.h"
        !             6: #include "fat.h"
        !             7: #include "volumes.h"
        !             8: 
        !             9: #include "apidrvr.h"
        !            10: #include "ntdriver.h"
        !            11: #include "ntvol.h"
        !            12: #include "ntrawdv.h"
        !            13: 
        !            14: #pragma warning( disable : 4127 )
        !            15: 
        !            16: NTSTATUS
        !            17: TCSendIRP_RawDevice (PDEVICE_OBJECT DeviceObject,
        !            18:                      PEXTENSION Extension,
        !            19:                      PVOID pUserBuffer,
        !            20:                      ULONG uFlags,
        !            21:                      UCHAR uMajorFunction,
        !            22:                      PIRP Irp)
        !            23: {
        !            24:        PIO_STACK_LOCATION irpSp;
        !            25:        PIO_STACK_LOCATION irpNextSp;
        !            26:        NTSTATUS ntStatus;
        !            27: 
        !            28:        if (uFlags);            /* Remove compiler warning */
        !            29: 
        !            30: //     Dump ("Sending IRP...\n");
        !            31: 
        !            32:        irpSp = IoGetCurrentIrpStackLocation (Irp);
        !            33:        irpNextSp = IoGetNextIrpStackLocation (Irp);
        !            34: 
        !            35:        irpSp->MajorFunction = uMajorFunction;
        !            36:        irpSp->DeviceObject = DeviceObject;
        !            37:        irpSp->FileObject = Extension->pfoDeviceFile;
        !            38: 
        !            39:        /* Copy our flags down one level, this is to get the proper
        !            40:           removable-media handling */
        !            41:        irpNextSp->Flags = irpSp->Flags;
        !            42: 
        !            43:        /* Setup the lower drivers stack location */
        !            44:        irpNextSp->MajorFunction = irpSp->MajorFunction;
        !            45:        irpNextSp->MinorFunction = irpSp->MinorFunction;
        !            46:        irpNextSp->DeviceObject = irpSp->DeviceObject;
        !            47:        irpNextSp->FileObject = irpSp->FileObject;
        !            48:        /* Copy over io parameters, this is a union, so it handles
        !            49:           deviceiocontrol & read/write */
        !            50:        irpNextSp->Parameters.Read.Length = irpSp->Parameters.Read.Length;
        !            51:        irpNextSp->Parameters.Read.ByteOffset = irpSp->Parameters.Read.ByteOffset;
        !            52:        irpNextSp->Parameters.Read.Key = irpSp->Parameters.Read.Key;
        !            53: 
        !            54:        IoSetCompletionRoutine (Irp, TCCompletion, pUserBuffer, TRUE, TRUE, TRUE);
        !            55:        ntStatus = IoCallDriver (Extension->pFsdDevice, Irp);
        !            56: 
        !            57: //     Dump ("IRP Sent!\n");
        !            58:        return ntStatus;
        !            59: }

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