FreeRDP/channels/rdpdr/rdpdr_main.c
2012-02-09 20:04:27 -05:00

318 lines
8.5 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol client.
* File System Virtual Channel
*
* Copyright 2010-2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
* Copyright 2010-2011 Vic Lee
*
* 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.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <freerdp/constants.h>
#include <freerdp/types.h>
#include <freerdp/utils/memory.h>
#include <freerdp/utils/stream.h>
#include <freerdp/utils/unicode.h>
#include <freerdp/utils/svc_plugin.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "rdpdr_types.h"
#include "rdpdr_constants.h"
#include "rdpdr_capabilities.h"
#include "devman.h"
#include "irp.h"
#include "rdpdr_main.h"
static void rdpdr_process_connect(rdpSvcPlugin* plugin)
{
rdpdrPlugin* rdpdr = (rdpdrPlugin*) plugin;
RDP_PLUGIN_DATA* data;
rdpdr->devman = devman_new(plugin);
data = (RDP_PLUGIN_DATA*) plugin->channel_entry_points.pExtendedData;
while (data && data->size > 0)
{
if (strcmp((char*) data->data[0], "clientname") == 0)
{
strncpy(rdpdr->computerName, (char*) data->data[1], sizeof(rdpdr->computerName) - 1);
DEBUG_SVC("computerName %s", rdpdr->computerName);
}
else
{
devman_load_device_service(rdpdr->devman, data);
}
data = (RDP_PLUGIN_DATA*) (((void*) data) + data->size);
}
}
static void rdpdr_process_server_announce_request(rdpdrPlugin* rdpdr, STREAM* data_in)
{
stream_read_uint16(data_in, rdpdr->versionMajor);
stream_read_uint16(data_in, rdpdr->versionMinor);
stream_read_uint32(data_in, rdpdr->clientID);
DEBUG_SVC("version %d.%d clientID %d", rdpdr->versionMajor, rdpdr->versionMinor, rdpdr->clientID);
}
static void rdpdr_send_client_announce_reply(rdpdrPlugin* rdpdr)
{
STREAM* data_out;
data_out = stream_new(12);
stream_write_uint16(data_out, RDPDR_CTYP_CORE);
stream_write_uint16(data_out, PAKID_CORE_CLIENTID_CONFIRM);
stream_write_uint16(data_out, rdpdr->versionMajor);
stream_write_uint16(data_out, rdpdr->versionMinor);
stream_write_uint32(data_out, rdpdr->clientID);
svc_plugin_send((rdpSvcPlugin*) rdpdr, data_out);
}
static void rdpdr_send_client_name_request(rdpdrPlugin* rdpdr)
{
char* s;
STREAM* data_out;
UNICONV* uniconv;
size_t computerNameLenW;
uniconv = freerdp_uniconv_new();
if (!rdpdr->computerName[0])
gethostname(rdpdr->computerName, sizeof(rdpdr->computerName) - 1);
s = freerdp_uniconv_out(uniconv, rdpdr->computerName, &computerNameLenW);
data_out = stream_new(16 + computerNameLenW + 2);
stream_write_uint16(data_out, RDPDR_CTYP_CORE);
stream_write_uint16(data_out, PAKID_CORE_CLIENT_NAME);
stream_write_uint32(data_out, 1); /* unicodeFlag, 0 for ASCII and 1 for Unicode */
stream_write_uint32(data_out, 0); /* codePage, must be set to zero */
stream_write_uint32(data_out, computerNameLenW + 2); /* computerNameLen, including null terminator */
stream_write(data_out, s, computerNameLenW);
stream_write_uint16(data_out, 0); /* null terminator */
xfree(s);
freerdp_uniconv_free(uniconv);
svc_plugin_send((rdpSvcPlugin*) rdpdr, data_out);
}
static void rdpdr_process_server_clientid_confirm(rdpdrPlugin* rdpdr, STREAM* data_in)
{
uint16 versionMajor;
uint16 versionMinor;
uint32 clientID;
stream_read_uint16(data_in, versionMajor);
stream_read_uint16(data_in, versionMinor);
stream_read_uint32(data_in, clientID);
if (versionMajor != rdpdr->versionMajor || versionMinor != rdpdr->versionMinor)
{
DEBUG_WARN("unmatched version %d.%d", versionMajor, versionMinor);
rdpdr->versionMajor = versionMajor;
rdpdr->versionMinor = versionMinor;
}
if (clientID != rdpdr->clientID)
{
DEBUG_WARN("unmatched clientID %d", clientID);
rdpdr->clientID = clientID;
}
}
static void rdpdr_send_device_list_announce_request(rdpdrPlugin* rdpdr, boolean user_loggedon)
{
int i;
int pos;
uint8 c;
uint32 count;
int data_len;
int count_pos;
STREAM* data_out;
DEVICE* device;
LIST_ITEM* item;
data_out = stream_new(256);
stream_write_uint16(data_out, RDPDR_CTYP_CORE);
stream_write_uint16(data_out, PAKID_CORE_DEVICELIST_ANNOUNCE);
count_pos = stream_get_pos(data_out);
count = 0;
stream_seek_uint32(data_out); /* deviceCount */
for (item = rdpdr->devman->devices->head; item; item = item->next)
{
device = (DEVICE*) item->data;
/**
* 1. versionMinor 0x0005 doesn't send PAKID_CORE_USER_LOGGEDON
* so all devices should be sent regardless of user_loggedon
* 2. smartcard devices should be always sent
* 3. other devices are sent only after user_loggedon
*/
if (rdpdr->versionMinor == 0x0005 ||
device->type == RDPDR_DTYP_SMARTCARD ||
user_loggedon)
{
data_len = (device->data == NULL ? 0 : stream_get_length(device->data));
stream_check_size(data_out, 20 + data_len);
stream_write_uint32(data_out, device->type); /* deviceType */
stream_write_uint32(data_out, device->id); /* deviceID */
strncpy((char*) stream_get_tail(data_out), device->name, 8);
for (i = 0; i < 8; i++)
{
stream_peek_uint8(data_out, c);
if (c > 0x7F)
stream_write_uint8(data_out, '_');
else
stream_seek_uint8(data_out);
}
stream_write_uint32(data_out, data_len);
if (data_len > 0)
stream_write(data_out, stream_get_data(device->data), data_len);
count++;
printf("registered device #%d: %s (type=%d id=%d)\n",
count, device->name, device->type, device->id);
}
}
pos = stream_get_pos(data_out);
stream_set_pos(data_out, count_pos);
stream_write_uint32(data_out, count);
stream_set_pos(data_out, pos);
stream_seal(data_out);
svc_plugin_send((rdpSvcPlugin*) rdpdr, data_out);
}
static boolean rdpdr_process_irp(rdpdrPlugin* rdpdr, STREAM* data_in)
{
IRP* irp;
irp = irp_new(rdpdr->devman, data_in);
if (irp == NULL)
return false;
IFCALL(irp->device->IRPRequest, irp->device, irp);
return true;
}
static void rdpdr_process_receive(rdpSvcPlugin* plugin, STREAM* data_in)
{
rdpdrPlugin* rdpdr = (rdpdrPlugin*) plugin;
uint16 component;
uint16 packetID;
uint32 deviceID;
uint32 status;
stream_read_uint16(data_in, component);
stream_read_uint16(data_in, packetID);
if (component == RDPDR_CTYP_CORE)
{
switch (packetID)
{
case PAKID_CORE_SERVER_ANNOUNCE:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_SERVER_ANNOUNCE");
rdpdr_process_server_announce_request(rdpdr, data_in);
rdpdr_send_client_announce_reply(rdpdr);
rdpdr_send_client_name_request(rdpdr);
break;
case PAKID_CORE_SERVER_CAPABILITY:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_SERVER_CAPABILITY");
rdpdr_process_capability_request(rdpdr, data_in);
rdpdr_send_capability_response(rdpdr);
break;
case PAKID_CORE_CLIENTID_CONFIRM:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_CLIENTID_CONFIRM");
rdpdr_process_server_clientid_confirm(rdpdr, data_in);
rdpdr_send_device_list_announce_request(rdpdr, false);
break;
case PAKID_CORE_USER_LOGGEDON:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_USER_LOGGEDON");
rdpdr_send_device_list_announce_request(rdpdr, true);
break;
case PAKID_CORE_DEVICE_REPLY:
/* connect to a specific resource */
stream_read_uint32(data_in, deviceID);
stream_read_uint32(data_in, status);
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_DEVICE_REPLY (deviceID=%d status=0x%08X)", deviceID, status);
break;
case PAKID_CORE_DEVICE_IOREQUEST:
DEBUG_SVC("RDPDR_CTYP_CORE / PAKID_CORE_DEVICE_IOREQUEST");
if (rdpdr_process_irp(rdpdr, data_in))
data_in = NULL;
break;
default:
DEBUG_WARN("RDPDR_CTYP_CORE / unknown packetID: 0x%02X", packetID);
break;
}
}
else if (component == RDPDR_CTYP_PRN)
{
DEBUG_SVC("RDPDR_CTYP_PRN");
}
else
{
DEBUG_WARN("RDPDR component: 0x%02X packetID: 0x%02X\n", component, packetID);
}
stream_free(data_in);
}
static void rdpdr_process_event(rdpSvcPlugin* plugin, RDP_EVENT* event)
{
freerdp_event_free(event);
}
static void rdpdr_process_terminate(rdpSvcPlugin* plugin)
{
rdpdrPlugin* rdpdr = (rdpdrPlugin*) plugin;
devman_free(rdpdr->devman);
xfree(plugin);
}
DEFINE_SVC_PLUGIN(rdpdr, "rdpdr",
CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP |
CHANNEL_OPTION_COMPRESS_RDP)