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|
/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
dispatch.c
Abstract:
This module contains the dispatch routines for AFD.
Author:
David Treadwell (davidtr) 21-Feb-1992
Revision History:
--*/
#include "afdp.h"
NTSTATUS
AfdDispatchDeviceControl (
IN PIRP Irp,
IN PIO_STACK_LOCATION IrpSp
);
#ifdef ALLOC_PRAGMA
#pragma alloc_text( PAGEAFD, AfdDispatch )
#pragma alloc_text( PAGEAFD, AfdDispatchDeviceControl )
#endif
//
// Lookup table to verify incoming IOCTL codes.
//
ULONG AfdIoctlTable[] =
{
IOCTL_AFD_BIND,
IOCTL_AFD_CONNECT,
IOCTL_AFD_START_LISTEN,
IOCTL_AFD_WAIT_FOR_LISTEN,
IOCTL_AFD_ACCEPT,
IOCTL_AFD_RECEIVE,
IOCTL_AFD_RECEIVE_DATAGRAM,
IOCTL_AFD_SEND,
IOCTL_AFD_SEND_DATAGRAM,
IOCTL_AFD_POLL,
IOCTL_AFD_PARTIAL_DISCONNECT,
IOCTL_AFD_GET_ADDRESS,
IOCTL_AFD_QUERY_RECEIVE_INFO,
IOCTL_AFD_QUERY_HANDLES,
IOCTL_AFD_SET_INFORMATION,
IOCTL_AFD_GET_CONTEXT_LENGTH,
IOCTL_AFD_GET_CONTEXT,
IOCTL_AFD_SET_CONTEXT,
IOCTL_AFD_SET_CONNECT_DATA,
IOCTL_AFD_SET_CONNECT_OPTIONS,
IOCTL_AFD_SET_DISCONNECT_DATA,
IOCTL_AFD_SET_DISCONNECT_OPTIONS,
IOCTL_AFD_GET_CONNECT_DATA,
IOCTL_AFD_GET_CONNECT_OPTIONS,
IOCTL_AFD_GET_DISCONNECT_DATA,
IOCTL_AFD_GET_DISCONNECT_OPTIONS,
IOCTL_AFD_SIZE_CONNECT_DATA,
IOCTL_AFD_SIZE_CONNECT_OPTIONS,
IOCTL_AFD_SIZE_DISCONNECT_DATA,
IOCTL_AFD_SIZE_DISCONNECT_OPTIONS,
IOCTL_AFD_GET_INFORMATION,
IOCTL_AFD_TRANSMIT_FILE,
IOCTL_AFD_SUPER_ACCEPT,
IOCTL_AFD_EVENT_SELECT,
IOCTL_AFD_ENUM_NETWORK_EVENTS,
IOCTL_AFD_DEFER_ACCEPT,
IOCTL_AFD_WAIT_FOR_LISTEN_LIFO,
IOCTL_AFD_SET_QOS,
IOCTL_AFD_GET_QOS,
IOCTL_AFD_NO_OPERATION,
IOCTL_AFD_VALIDATE_GROUP,
IOCTL_AFD_GET_UNACCEPTED_CONNECT_DATA
#ifdef NT351
,IOCTL_AFD_QUEUE_APC
#endif
};
#define NUM_AFD_IOCTLS ( sizeof(AfdIoctlTable) / sizeof(AfdIoctlTable[0]) )
NTSTATUS
AfdDispatch (
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)
/*++
Routine Description:
This is the dispatch routine for AFD.
Arguments:
DeviceObject - Pointer to device object for target device
Irp - Pointer to I/O request packet
Return Value:
NTSTATUS -- Indicates whether the request was successfully queued.
--*/
{
PIO_STACK_LOCATION irpSp;
NTSTATUS status;
#if DBG
KIRQL oldIrql;
oldIrql = KeGetCurrentIrql( );
#endif
DeviceObject; // prevent compiler warnings
irpSp = IoGetCurrentIrpStackLocation( Irp );
switch ( irpSp->MajorFunction ) {
case IRP_MJ_DEVICE_CONTROL:
return AfdDispatchDeviceControl( Irp, irpSp );
case IRP_MJ_WRITE:
//
// Make the IRP look like a send IRP.
//
ASSERT( FIELD_OFFSET( IO_STACK_LOCATION, Parameters.Write.Length ) ==
FIELD_OFFSET( IO_STACK_LOCATION, Parameters.DeviceIoControl.OutputBufferLength ) );
ASSERT( FIELD_OFFSET( IO_STACK_LOCATION, Parameters.Write.Key ) ==
FIELD_OFFSET( IO_STACK_LOCATION, Parameters.DeviceIoControl.InputBufferLength ) );
irpSp->Parameters.Write.Key = 0;
status = AfdSend( Irp, irpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case IRP_MJ_READ:
//
// Make the IRP look like a receive IRP.
//
ASSERT( FIELD_OFFSET( IO_STACK_LOCATION, Parameters.Read.Length ) ==
FIELD_OFFSET( IO_STACK_LOCATION, Parameters.DeviceIoControl.OutputBufferLength ) );
ASSERT( FIELD_OFFSET( IO_STACK_LOCATION, Parameters.Read.Key ) ==
FIELD_OFFSET( IO_STACK_LOCATION, Parameters.DeviceIoControl.InputBufferLength ) );
irpSp->Parameters.Read.Key = 0;
status = AfdReceive( Irp, irpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case IRP_MJ_CREATE:
status = AfdCreate( Irp, irpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
return status;
case IRP_MJ_CLEANUP:
status = AfdCleanup( Irp, irpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case IRP_MJ_CLOSE:
status = AfdClose( Irp, irpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
default:
KdPrint(( "AfdDispatch: Invalid major function %lx\n",
irpSp->MajorFunction ));
Irp->IoStatus.Status = STATUS_NOT_IMPLEMENTED;
IoCompleteRequest( Irp, AfdPriorityBoost );
return STATUS_NOT_IMPLEMENTED;
}
} // AfdDispatch
NTSTATUS
AfdDispatchDeviceControl (
IN PIRP Irp,
IN PIO_STACK_LOCATION IrpSp
)
/*++
Routine Description:
This is the dispatch routine for AFD IOCTLs.
Arguments:
Irp - Pointer to I/O request packet.
IrpSp - pointer to the stack location to use for this request.
Return Value:
NTSTATUS -- Indicates whether the request was successfully queued.
--*/
{
ULONG code;
ULONG request;
NTSTATUS status;
#if DBG
KIRQL oldIrql;
oldIrql = KeGetCurrentIrql( );
#endif
//
// Extract the IOCTL control code and process the request.
//
code = IrpSp->Parameters.DeviceIoControl.IoControlCode;
request = _AFD_REQUEST(code);
if( _AFD_BASE(code) == FSCTL_AFD_BASE &&
request < NUM_AFD_IOCTLS &&
AfdIoctlTable[request] == code ) {
switch( request ) {
case AFD_SEND:
status = AfdSend( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_SEND_DATAGRAM:
status = AfdSendDatagram( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_RECEIVE:
status = AfdReceive( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_RECEIVE_DATAGRAM:
status = AfdReceiveDatagram( Irp, IrpSp, 0, 0 );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_TRANSMIT_FILE:
status = AfdTransmitFile( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_BIND:
status = AfdBind( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_CONNECT:
return AfdConnect( Irp, IrpSp );
case AFD_START_LISTEN:
status = AfdStartListen( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_WAIT_FOR_LISTEN:
case AFD_WAIT_FOR_LISTEN_LIFO:
status = AfdWaitForListen( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_ACCEPT:
status = AfdAccept( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_PARTIAL_DISCONNECT:
status = AfdPartialDisconnect( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_GET_ADDRESS:
status = AfdGetAddress( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_POLL:
status = AfdPoll( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_QUERY_RECEIVE_INFO:
status = AfdQueryReceiveInformation( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_QUERY_HANDLES:
status = AfdQueryHandles( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_GET_CONTEXT_LENGTH:
status = AfdGetContextLength( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_GET_CONTEXT:
status = AfdGetContext( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_SET_CONTEXT:
status = AfdSetContext( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_SET_INFORMATION:
status = AfdSetInformation( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_GET_INFORMATION:
status = AfdGetInformation( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_SET_CONNECT_DATA:
case AFD_SET_CONNECT_OPTIONS:
case AFD_SET_DISCONNECT_DATA:
case AFD_SET_DISCONNECT_OPTIONS:
case AFD_SIZE_CONNECT_DATA:
case AFD_SIZE_CONNECT_OPTIONS:
case AFD_SIZE_DISCONNECT_DATA:
case AFD_SIZE_DISCONNECT_OPTIONS:
status = AfdSetConnectData( Irp, IrpSp, code );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_GET_CONNECT_DATA:
case AFD_GET_CONNECT_OPTIONS:
case AFD_GET_DISCONNECT_DATA:
case AFD_GET_DISCONNECT_OPTIONS:
status = AfdGetConnectData( Irp, IrpSp, code );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_SUPER_ACCEPT:
status = AfdSuperAccept( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_EVENT_SELECT :
status = AfdEventSelect( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql() == LOW_LEVEL );
return status;
case AFD_ENUM_NETWORK_EVENTS :
status = AfdEnumNetworkEvents( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql() == LOW_LEVEL );
return status;
case AFD_DEFER_ACCEPT:
status = AfdDeferAccept( Irp, IrpSp );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_SET_QOS :
status = AfdSetQos( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_GET_QOS :
status = AfdGetQos( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_NO_OPERATION :
status = AfdNoOperation( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_VALIDATE_GROUP :
status = AfdValidateGroup( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
case AFD_GET_UNACCEPTED_CONNECT_DATA :
status = AfdGetUnacceptedConnectData( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql( ) == oldIrql );
return status;
#ifdef NT351
case AFD_QUEUE_APC :
status = AfdQueueUserApc( Irp, IrpSp );
Irp->IoStatus.Status = status;
IoCompleteRequest( Irp, AfdPriorityBoost );
ASSERT( KeGetCurrentIrql() == LOW_LEVEL );
return status;
#endif // NT351
}
}
//
// If we made it this far, then the ioctl is invalid.
//
KdPrint((
"AfdDispatchDeviceControl: invalid IOCTL %08lX\n",
code
));
Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
IoCompleteRequest( Irp, AfdPriorityBoost );
return STATUS_INVALID_DEVICE_REQUEST;
} // AfdDispatchDeviceControl
|
