FreeRDP/channels/rdpdr/client/rdpdr_capabilities.c
2013-03-21 15:19:33 -04:00

191 lines
5.9 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Device Redirection Virtual Channel
*
* Copyright 2010-2011 Vic Lee
* Copyright 2010-2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <freerdp/utils/stream.h>
#include <freerdp/utils/svc_plugin.h>
#include "rdpdr_main.h"
#include "rdpdr_capabilities.h"
/* Output device redirection capability set header */
static void rdpdr_write_capset_header(wStream* data_out, UINT16 capabilityType, UINT16 capabilityLength, UINT32 version)
{
stream_write_UINT16(data_out, capabilityType);
stream_write_UINT16(data_out, capabilityLength);
stream_write_UINT32(data_out, version);
}
/* Output device direction general capability set */
static void rdpdr_write_general_capset(rdpdrPlugin* rdpdr, wStream* data_out)
{
rdpdr_write_capset_header(data_out, CAP_GENERAL_TYPE, 44, GENERAL_CAPABILITY_VERSION_02);
stream_write_UINT32(data_out, 0); /* osType, ignored on receipt */
stream_write_UINT32(data_out, 0); /* osVersion, unused and must be set to zero */
stream_write_UINT16(data_out, 1); /* protocolMajorVersion, must be set to 1 */
stream_write_UINT16(data_out, RDPDR_MINOR_RDP_VERSION_5_2); /* protocolMinorVersion */
stream_write_UINT32(data_out, 0x0000FFFF); /* ioCode1 */
stream_write_UINT32(data_out, 0); /* ioCode2, must be set to zero, reserved for future use */
stream_write_UINT32(data_out, RDPDR_DEVICE_REMOVE_PDUS | RDPDR_CLIENT_DISPLAY_NAME_PDU | RDPDR_USER_LOGGEDON_PDU); /* extendedPDU */
stream_write_UINT32(data_out, ENABLE_ASYNCIO); /* extraFlags1 */
stream_write_UINT32(data_out, 0); /* extraFlags2, must be set to zero, reserved for future use */
stream_write_UINT32(data_out, 0); /* SpecialTypeDeviceCap, number of special devices to be redirected before logon */
}
/* Process device direction general capability set */
static void rdpdr_process_general_capset(rdpdrPlugin* rdpdr, wStream* data_in)
{
UINT16 capabilityLength;
stream_read_UINT16(data_in, capabilityLength);
stream_seek(data_in, capabilityLength - 4);
}
/* Output printer direction capability set */
static void rdpdr_write_printer_capset(rdpdrPlugin* rdpdr, wStream* data_out)
{
rdpdr_write_capset_header(data_out, CAP_PRINTER_TYPE, 8, PRINT_CAPABILITY_VERSION_01);
}
/* Process printer direction capability set */
static void rdpdr_process_printer_capset(rdpdrPlugin* rdpdr, wStream* data_in)
{
UINT16 capabilityLength;
stream_read_UINT16(data_in, capabilityLength);
stream_seek(data_in, capabilityLength - 4);
}
/* Output port redirection capability set */
static void rdpdr_write_port_capset(rdpdrPlugin* rdpdr, wStream* data_out)
{
rdpdr_write_capset_header(data_out, CAP_PORT_TYPE, 8, PORT_CAPABILITY_VERSION_01);
}
/* Process port redirection capability set */
static void rdpdr_process_port_capset(rdpdrPlugin* rdpdr, wStream* data_in)
{
UINT16 capabilityLength;
stream_read_UINT16(data_in, capabilityLength);
stream_seek(data_in, capabilityLength - 4);
}
/* Output drive redirection capability set */
static void rdpdr_write_drive_capset(rdpdrPlugin* rdpdr, wStream* data_out)
{
rdpdr_write_capset_header(data_out, CAP_DRIVE_TYPE, 8, DRIVE_CAPABILITY_VERSION_02);
}
/* Process drive redirection capability set */
static void rdpdr_process_drive_capset(rdpdrPlugin* rdpdr, wStream* data_in)
{
UINT16 capabilityLength;
stream_read_UINT16(data_in, capabilityLength);
stream_seek(data_in, capabilityLength - 4);
}
/* Output smart card redirection capability set */
static void rdpdr_write_smartcard_capset(rdpdrPlugin* rdpdr, wStream* data_out)
{
rdpdr_write_capset_header(data_out, CAP_SMARTCARD_TYPE, 8, SMARTCARD_CAPABILITY_VERSION_01);
}
/* Process smartcard redirection capability set */
static void rdpdr_process_smartcard_capset(rdpdrPlugin* rdpdr, wStream* data_in)
{
UINT16 capabilityLength;
stream_read_UINT16(data_in, capabilityLength);
stream_seek(data_in, capabilityLength - 4);
}
void rdpdr_process_capability_request(rdpdrPlugin* rdpdr, wStream* data_in)
{
UINT16 i;
UINT16 numCapabilities;
UINT16 capabilityType;
stream_read_UINT16(data_in, numCapabilities);
stream_seek(data_in, 2); /* pad (2 bytes) */
for(i = 0; i < numCapabilities; i++)
{
stream_read_UINT16(data_in, capabilityType);
switch (capabilityType)
{
case CAP_GENERAL_TYPE:
rdpdr_process_general_capset(rdpdr, data_in);
break;
case CAP_PRINTER_TYPE:
rdpdr_process_printer_capset(rdpdr, data_in);
break;
case CAP_PORT_TYPE:
rdpdr_process_port_capset(rdpdr, data_in);
break;
case CAP_DRIVE_TYPE:
rdpdr_process_drive_capset(rdpdr, data_in);
break;
case CAP_SMARTCARD_TYPE:
rdpdr_process_smartcard_capset(rdpdr, data_in);
break;
default:
DEBUG_WARN("Unknown capabilityType %d", capabilityType);
break;
}
}
}
void rdpdr_send_capability_response(rdpdrPlugin* rdpdr)
{
wStream* data_out;
data_out = stream_new(256);
stream_write_UINT16(data_out, RDPDR_CTYP_CORE);
stream_write_UINT16(data_out, PAKID_CORE_CLIENT_CAPABILITY);
stream_write_UINT16(data_out, 5); /* numCapabilities */
stream_write_UINT16(data_out, 0); /* pad */
rdpdr_write_general_capset(rdpdr, data_out);
rdpdr_write_printer_capset(rdpdr, data_out);
rdpdr_write_port_capset(rdpdr, data_out);
rdpdr_write_drive_capset(rdpdr, data_out);
rdpdr_write_smartcard_capset(rdpdr, data_out);
svc_plugin_send((rdpSvcPlugin*)rdpdr, data_out);
}