mirror of
https://github.com/reactos/reactos.git
synced 2024-12-27 09:34:43 +00:00
199 lines
4 KiB
C
199 lines
4 KiB
C
/*++
|
|
|
|
Copyright (c) 1989-2000 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
DevCtrl.c
|
|
|
|
Abstract:
|
|
|
|
This module implements the File System Device Control routines for Cdfs
|
|
called by the dispatch driver.
|
|
|
|
|
|
--*/
|
|
|
|
#include "cdprocs.h"
|
|
|
|
//
|
|
// The Bug check file id for this module
|
|
//
|
|
|
|
#define BugCheckFileId (CDFS_BUG_CHECK_DEVCTRL)
|
|
|
|
//
|
|
// Local support routines
|
|
//
|
|
|
|
// Tell prefast this is a completion routine
|
|
IO_COMPLETION_ROUTINE CdDevCtrlCompletionRoutine;
|
|
|
|
NTSTATUS
|
|
NTAPI /* ReactOS Change: GCC Does not support STDCALL by default */
|
|
CdDevCtrlCompletionRoutine (
|
|
_In_ PDEVICE_OBJECT DeviceObject,
|
|
_In_ PIRP Irp,
|
|
_In_reads_opt_(_Inexpressible_("varies")) PVOID Contxt
|
|
);
|
|
|
|
#ifdef ALLOC_PRAGMA
|
|
#pragma alloc_text(PAGE, CdCommonDevControl)
|
|
#endif
|
|
|
|
|
|
NTSTATUS
|
|
CdCommonDevControl (
|
|
_Inout_ PIRP_CONTEXT IrpContext,
|
|
_Inout_ PIRP Irp
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Arguments:
|
|
|
|
Return Value:
|
|
|
|
--*/
|
|
|
|
{
|
|
NTSTATUS Status;
|
|
|
|
TYPE_OF_OPEN TypeOfOpen;
|
|
PFCB Fcb;
|
|
PCCB Ccb;
|
|
|
|
PIO_STACK_LOCATION IrpSp;
|
|
PIO_STACK_LOCATION NextIrpSp;
|
|
|
|
PAGED_CODE();
|
|
|
|
//
|
|
// Extract and decode the file object.
|
|
//
|
|
|
|
IrpSp = IoGetCurrentIrpStackLocation( Irp );
|
|
|
|
TypeOfOpen = CdDecodeFileObject( IrpContext,
|
|
IrpSp->FileObject,
|
|
&Fcb,
|
|
&Ccb );
|
|
|
|
//
|
|
// The only type of opens we accept are user volume opens.
|
|
//
|
|
|
|
if (TypeOfOpen != UserVolumeOpen) {
|
|
|
|
CdCompleteRequest( IrpContext, Irp, STATUS_INVALID_PARAMETER );
|
|
return STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (IrpSp->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_READ_TOC) {
|
|
|
|
//
|
|
// Verify the Vcb in this case to detect if the volume has changed.
|
|
//
|
|
|
|
CdVerifyVcb( IrpContext, Fcb->Vcb );
|
|
|
|
//
|
|
// Handle the case of the disk type ourselves.
|
|
//
|
|
|
|
} else if (IrpSp->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_DISK_TYPE) {
|
|
|
|
//
|
|
// Verify the Vcb in this case to detect if the volume has changed.
|
|
//
|
|
|
|
CdVerifyVcb( IrpContext, Fcb->Vcb );
|
|
|
|
//
|
|
// Check the size of the output buffer.
|
|
//
|
|
|
|
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof( CDROM_DISK_DATA )) {
|
|
|
|
CdCompleteRequest( IrpContext, Irp, STATUS_BUFFER_TOO_SMALL );
|
|
return STATUS_BUFFER_TOO_SMALL;
|
|
}
|
|
|
|
//
|
|
// Copy the data from the Vcb.
|
|
//
|
|
|
|
((PCDROM_DISK_DATA) Irp->AssociatedIrp.SystemBuffer)->DiskData = Fcb->Vcb->DiskFlags;
|
|
|
|
Irp->IoStatus.Information = sizeof( CDROM_DISK_DATA );
|
|
CdCompleteRequest( IrpContext, Irp, STATUS_SUCCESS );
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
//
|
|
// Get the next stack location, and copy over the stack parameter
|
|
// information.
|
|
//
|
|
|
|
NextIrpSp = IoGetNextIrpStackLocation( Irp );
|
|
|
|
*NextIrpSp = *IrpSp;
|
|
|
|
//
|
|
// Set up the completion routine
|
|
//
|
|
|
|
IoSetCompletionRoutine( Irp,
|
|
CdDevCtrlCompletionRoutine,
|
|
NULL,
|
|
TRUE,
|
|
TRUE,
|
|
TRUE );
|
|
|
|
//
|
|
// Send the request.
|
|
//
|
|
|
|
Status = IoCallDriver( IrpContext->Vcb->TargetDeviceObject, Irp );
|
|
|
|
//
|
|
// Cleanup our Irp Context. The driver has completed the Irp.
|
|
//
|
|
|
|
CdCompleteRequest( IrpContext, NULL, STATUS_SUCCESS );
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
//
|
|
// Local support routine
|
|
//
|
|
|
|
NTSTATUS
|
|
NTAPI /* ReactOS Change: GCC Does not support STDCALL by default */
|
|
CdDevCtrlCompletionRoutine (
|
|
_In_ PDEVICE_OBJECT DeviceObject,
|
|
_In_ PIRP Irp,
|
|
_In_reads_opt_(_Inexpressible_("varies")) PVOID Contxt
|
|
)
|
|
|
|
{
|
|
//
|
|
// Add the hack-o-ramma to fix formats.
|
|
//
|
|
|
|
if (Irp->PendingReturned) {
|
|
|
|
IoMarkIrpPending( Irp );
|
|
}
|
|
|
|
return STATUS_SUCCESS;
|
|
|
|
UNREFERENCED_PARAMETER( DeviceObject );
|
|
UNREFERENCED_PARAMETER( Contxt );
|
|
}
|
|
|
|
|