/*++
Copyright (c) 1991-1998 Microsoft Corporation
Module Name:
ioctl.c
Abstract:
Author:
Neil Sandlin (neilsa) 26-Apr-99
Environment:
Kernel mode only.
--*/
#include "pch.h"
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE,MemCardDeviceControl)
#endif
NTSTATUS
MemCardDeviceControl(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This routine is called by the I/O system to perform a device I/O
control function.
Arguments:
DeviceObject - a pointer to the object that represents the device
that I/O is to be done on.
Irp - a pointer to the I/O Request Packet for this request.
Return Value:
STATUS_SUCCESS or STATUS_PENDING if recognized I/O control code,
STATUS_INVALID_DEVICE_REQUEST otherwise.
--*/
{
PIO_STACK_LOCATION irpSp;
PMEMCARD_EXTENSION memcardExtension;
PDISK_GEOMETRY outputBuffer;
NTSTATUS status;
ULONG outputBufferLength;
UCHAR i;
ULONG formatExParametersSize;
PFORMAT_EX_PARAMETERS formatExParameters;
MemCardDump( MEMCARDIOCTL, ("MemCard: IOCTL entered\n") );
memcardExtension = DeviceObject->DeviceExtension;
irpSp = IoGetCurrentIrpStackLocation( Irp );
//
// If the device has been removed we will just fail this request outright.
//
if ( memcardExtension->IsRemoved ) {
Irp->IoStatus.Information = 0;
Irp->IoStatus.Status = STATUS_DELETE_PENDING;
IoCompleteRequest( Irp, IO_NO_INCREMENT );
return STATUS_DELETE_PENDING;
}
//
// If the device hasn't been started we will let the IOCTL through. This
// is another hack for ACPI.
//
if (!memcardExtension->IsStarted) {
IoSkipCurrentIrpStackLocation( Irp );
return IoCallDriver( memcardExtension->TargetObject, Irp );
}
switch( irpSp->Parameters.DeviceIoControl.IoControlCode ) {
case IOCTL_MOUNTDEV_QUERY_DEVICE_NAME: {
PMOUNTDEV_NAME mountName;
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL_MOUNTDEV_QUERY_DEVICE_NAME\n",
DeviceObject, Irp));
ASSERT(memcardExtension->DeviceName.Buffer);
if ( irpSp->Parameters.DeviceIoControl.OutputBufferLength <
sizeof(MOUNTDEV_NAME) ) {
status = STATUS_INVALID_PARAMETER;
break;
}
mountName = Irp->AssociatedIrp.SystemBuffer;
mountName->NameLength = memcardExtension->DeviceName.Length;
if ( irpSp->Parameters.DeviceIoControl.OutputBufferLength <
sizeof(USHORT) + mountName->NameLength) {
status = STATUS_BUFFER_OVERFLOW;
Irp->IoStatus.Information = sizeof(MOUNTDEV_NAME);
break;
}
RtlCopyMemory( mountName->Name, memcardExtension->DeviceName.Buffer,
mountName->NameLength);
status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof(USHORT) + mountName->NameLength;
break;
}
case IOCTL_MOUNTDEV_QUERY_UNIQUE_ID: {
PMOUNTDEV_UNIQUE_ID uniqueId;
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL_MOUNTDEV_QUERY_UNIQUE_ID\n",
DeviceObject, Irp));
if ( !memcardExtension->InterfaceString.Buffer ||
irpSp->Parameters.DeviceIoControl.OutputBufferLength <
sizeof(MOUNTDEV_UNIQUE_ID)) {
status = STATUS_INVALID_PARAMETER;
break;
}
uniqueId = Irp->AssociatedIrp.SystemBuffer;
uniqueId->UniqueIdLength =
memcardExtension->InterfaceString.Length;
if (irpSp->Parameters.DeviceIoControl.OutputBufferLength <
sizeof(USHORT) + uniqueId->UniqueIdLength) {
status = STATUS_BUFFER_OVERFLOW;
Irp->IoStatus.Information = sizeof(MOUNTDEV_UNIQUE_ID);
break;
}
RtlCopyMemory( uniqueId->UniqueId,
memcardExtension->InterfaceString.Buffer,
uniqueId->UniqueIdLength );
status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof(USHORT) +
uniqueId->UniqueIdLength;
break;
}
case IOCTL_MOUNTDEV_QUERY_SUGGESTED_LINK_NAME: {
MemCardDump(MEMCARDIOCTL,("MemCard: DO %.8x Irp %.8x IOCTL_MOUNTDEV_QUERY_SUGGESTED_LINK_NAME\n",
DeviceObject, Irp));
status = STATUS_INVALID_DEVICE_REQUEST;
break;
}
case IOCTL_DISK_GET_MEDIA_TYPES: {
ULONG ByteCapacity;
MemCardDump(MEMCARDIOCTL,("MemCard: DO %.8x Irp %.8x IOCTL_DISK_GET_MEDIA_TYPES\n",
DeviceObject, Irp));
outputBufferLength = irpSp->Parameters.DeviceIoControl.OutputBufferLength;
outputBuffer = (PDISK_GEOMETRY) Irp->AssociatedIrp.SystemBuffer;
//
// Make sure that the input buffer has enough room to return
// at least one descriptions of a supported media type.
//
if (outputBufferLength < (sizeof(DISK_GEOMETRY))) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
//
// Assume success, although we might modify it to a buffer
// overflow warning below (if the buffer isn't big enough
// to hold ALL of the media descriptions).
//
status = STATUS_SUCCESS;
i = 0;
Irp->IoStatus.Information = 0;
//
// Fill in capacities from 512K to 8M
//
for (ByteCapacity = 0x80000; ByteCapacity <= 0x800000; ByteCapacity*=2) {
if (outputBufferLength < (sizeof(DISK_GEOMETRY) + Irp->IoStatus.Information)) {
status = STATUS_BUFFER_OVERFLOW;
break;
}
outputBuffer->MediaType = FixedMedia;
outputBuffer->Cylinders.LowPart = ByteCapacity / (8 * 2 * 512);
outputBuffer->Cylinders.HighPart = 0;
outputBuffer->TracksPerCylinder = 2;
outputBuffer->SectorsPerTrack = 8;
outputBuffer->BytesPerSector = 512;
MemCardDump( MEMCARDIOCTL, ("MemCard: Cyls=%x\n", outputBuffer->Cylinders.LowPart));
outputBuffer++;
Irp->IoStatus.Information += sizeof( DISK_GEOMETRY );
}
break;
}
case IOCTL_DISK_CHECK_VERIFY:
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL_DISK_CHECK_VERIFY\n",
DeviceObject, Irp));
status = STATUS_SUCCESS;
break;
case IOCTL_DISK_GET_DRIVE_GEOMETRY: {
PDISK_GEOMETRY outputBuffer = (PDISK_GEOMETRY) Irp->AssociatedIrp.SystemBuffer;
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL_DISK_GET_DRIVE_GEOMETRY\n",
DeviceObject, Irp));
if ( irpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof( DISK_GEOMETRY ) ) {
status = STATUS_INVALID_PARAMETER;
break;
}
status = STATUS_SUCCESS;
if (!memcardExtension->ByteCapacity) {
//
// Just zero out everything. The
// caller shouldn't look at it.
//
outputBuffer->MediaType = Unknown;
outputBuffer->Cylinders.LowPart = 0;
outputBuffer->Cylinders.HighPart = 0;
outputBuffer->TracksPerCylinder = 0;
outputBuffer->SectorsPerTrack = 0;
outputBuffer->BytesPerSector = 0;
} else {
//
// Return the geometry of the current
// media.
//
outputBuffer->MediaType = FixedMedia;
outputBuffer->Cylinders.HighPart = 0;
outputBuffer->Cylinders.LowPart = memcardExtension->ByteCapacity / (8 * 2 * 512);
outputBuffer->TracksPerCylinder = 2;
outputBuffer->SectorsPerTrack = 8;
outputBuffer->BytesPerSector = 512;
}
MemCardDump( MEMCARDIOCTL, ("MemCard: Capacity=%.8x => Cyl=%x\n",
memcardExtension->ByteCapacity, outputBuffer->Cylinders.LowPart));
Irp->IoStatus.Information = sizeof( DISK_GEOMETRY );
break;
}
case IOCTL_DISK_IS_WRITABLE: {
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL_DISK_IS_WRITABLE\n",
DeviceObject, Irp));
if ((memcardExtension->PcmciaInterface.IsWriteProtected)(memcardExtension->UnderlyingPDO)) {
status = STATUS_INVALID_PARAMETER;
} else {
status = STATUS_SUCCESS;
}
break;
}
case IOCTL_DISK_VERIFY: {
PVERIFY_INFORMATION verifyInformation = Irp->AssociatedIrp.SystemBuffer;
if (irpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(VERIFY_INFORMATION)) {
status = STATUS_INVALID_PARAMETER;
break;
}
//NOTE: not implemented
Irp->IoStatus.Information = verifyInformation->Length;
status = STATUS_SUCCESS;
break;
}
case IOCTL_DISK_GET_DRIVE_LAYOUT: {
PDRIVE_LAYOUT_INFORMATION outputBuffer = (PDRIVE_LAYOUT_INFORMATION) Irp->AssociatedIrp.SystemBuffer;
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL_DISK_GET_DRIVE_LAYOUT\n",
DeviceObject, Irp));
if ( irpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(DRIVE_LAYOUT_INFORMATION) ) {
status = STATUS_INVALID_PARAMETER;
break;
}
RtlZeroMemory(outputBuffer, sizeof(DRIVE_LAYOUT_INFORMATION));
outputBuffer->PartitionCount = 1;
outputBuffer->PartitionEntry[0].StartingOffset.LowPart = 512;
outputBuffer->PartitionEntry[0].PartitionLength.LowPart = memcardExtension->ByteCapacity;
outputBuffer->PartitionEntry[0].RecognizedPartition = TRUE;
status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof(DRIVE_LAYOUT_INFORMATION);
break;
}
case IOCTL_DISK_GET_PARTITION_INFO: {
PPARTITION_INFORMATION outputBuffer = (PPARTITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL_DISK_GET_PARTITION_INFO\n",
DeviceObject, Irp));
if ( irpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof( PARTITION_INFORMATION ) ) {
status = STATUS_INVALID_PARAMETER;
break;
}
RtlZeroMemory(outputBuffer, sizeof(PARTITION_INFORMATION));
outputBuffer->RecognizedPartition = TRUE;
outputBuffer->StartingOffset.LowPart = 512;
outputBuffer->PartitionLength.LowPart = memcardExtension->ByteCapacity;
status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof( PARTITION_INFORMATION );
break;
}
case IOCTL_DISK_SET_DRIVE_LAYOUT:
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL_DISK_SET_DRIVE_LAYOUT\n",
DeviceObject, Irp));
case IOCTL_MOUNTMGR_CHANGE_NOTIFY:
case IOCTL_MOUNTDEV_LINK_CREATED:
case IOCTL_MOUNTDEV_LINK_DELETED:
default: {
MemCardDump(MEMCARDIOCTL,
("MemCard: IOCTL - unsupported device request %.8x\n", irpSp->Parameters.DeviceIoControl.IoControlCode));
status = STATUS_INVALID_DEVICE_REQUEST;
break;
//IoSkipCurrentIrpStackLocation( Irp );
//status = IoCallDriver( memcardExtension->TargetObject, Irp );
//return status;
}
}
if ( status != STATUS_PENDING ) {
Irp->IoStatus.Status = status;
if (!NT_SUCCESS( status ) && IoIsErrorUserInduced( status )) {
IoSetHardErrorOrVerifyDevice( Irp, DeviceObject );
}
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL comp %.8x\n", DeviceObject, Irp, status));
IoCompleteRequest( Irp, IO_NO_INCREMENT );
}
MemCardDump( MEMCARDIOCTL, ("MemCard: DO %.8x Irp %.8x IOCTL <-- %.8x \n", DeviceObject, Irp, status));
return status;
}