mirror of
https://github.com/reactos/reactos.git
synced 2024-08-14 15:16:27 +00:00
200 lines
4 KiB
C
Executable file
200 lines
4 KiB
C
Executable file
/*++
|
||
|
||
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 );
|
||
}
|
||
|
||
|