217 lines
6.5 KiB
C
217 lines
6.5 KiB
C
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is libguac-client-rdp.
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*
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* The Initial Developer of the Original Code is
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* Michael Jumper.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <stdlib.h>
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#include <string.h>
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#include <freerdp/constants.h>
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#include <freerdp/utils/svc_plugin.h>
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#ifdef ENABLE_WINPR
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#include <winpr/stream.h>
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#include <winpr/wtypes.h>
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#else
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#include "compat/winpr-stream.h"
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#include "compat/winpr-wtypes.h"
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#endif
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#include <guacamole/client.h>
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#include "rdpdr_service.h"
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#include "rdpdr_messages.h"
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#include "rdpdr_printer.h"
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#include "rdpdr_fs.h"
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#include "client.h"
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/**
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* Entry point for RDPDR virtual channel.
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*/
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int VirtualChannelEntry(PCHANNEL_ENTRY_POINTS pEntryPoints) {
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/* Allocate plugin */
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guac_rdpdrPlugin* rdpdr =
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(guac_rdpdrPlugin*) calloc(1, sizeof(guac_rdpdrPlugin));
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/* Init channel def */
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strcpy(rdpdr->plugin.channel_def.name, "rdpdr");
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rdpdr->plugin.channel_def.options =
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CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP | CHANNEL_OPTION_COMPRESS_RDP;
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/* Set callbacks */
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rdpdr->plugin.connect_callback = guac_rdpdr_process_connect;
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rdpdr->plugin.receive_callback = guac_rdpdr_process_receive;
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rdpdr->plugin.event_callback = guac_rdpdr_process_event;
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rdpdr->plugin.terminate_callback = guac_rdpdr_process_terminate;
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/* Finish init */
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svc_plugin_init((rdpSvcPlugin*) rdpdr, pEntryPoints);
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return 1;
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}
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/*
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* Service Handlers
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*/
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void guac_rdpdr_process_connect(rdpSvcPlugin* plugin) {
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/* Get RDPDR plugin */
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guac_rdpdrPlugin* rdpdr = (guac_rdpdrPlugin*) plugin;
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/* Get client from plugin parameters */
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guac_client* client = (guac_client*)
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plugin->channel_entry_points.pExtendedData;
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/* NULL out pExtendedData so we don't lose our guac_client due to an
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* automatic free() within libfreerdp */
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plugin->channel_entry_points.pExtendedData = NULL;
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/* Get data from client */
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rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
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/* Init plugin */
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rdpdr->client = client;
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rdpdr->devices_registered = 0;
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/* Register printer if enabled */
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if (client_data->settings.printing_enabled)
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guac_rdpdr_register_printer(rdpdr);
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guac_rdpdr_register_fs(rdpdr);
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/* Log that printing, etc. has been loaded */
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guac_client_log_info(client, "guacdr connected.");
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}
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void guac_rdpdr_process_terminate(rdpSvcPlugin* plugin) {
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guac_rdpdrPlugin* rdpdr = (guac_rdpdrPlugin*) plugin;
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int i;
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for (i=0; i<rdpdr->devices_registered; i++) {
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guac_rdpdr_device* device = &(rdpdr->devices[i]);
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guac_client_log_info(rdpdr->client, "Unloading device %i (%s)",
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device->device_id, device->device_name);
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device->free_handler(device);
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}
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free(plugin);
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}
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void guac_rdpdr_process_event(rdpSvcPlugin* plugin, wMessage* event) {
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freerdp_event_free(event);
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}
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void guac_rdpdr_process_receive(rdpSvcPlugin* plugin,
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wStream* input_stream) {
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guac_rdpdrPlugin* rdpdr = (guac_rdpdrPlugin*) plugin;
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int component;
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int packet_id;
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/* Read header */
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Stream_Read_UINT16(input_stream, component);
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Stream_Read_UINT16(input_stream, packet_id);
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/* Core component */
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if (component == RDPDR_CTYP_CORE) {
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/* Dispatch handlers based on packet ID */
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switch (packet_id) {
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case PAKID_CORE_SERVER_ANNOUNCE:
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guac_rdpdr_process_server_announce(rdpdr, input_stream);
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break;
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case PAKID_CORE_CLIENTID_CONFIRM:
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guac_rdpdr_process_clientid_confirm(rdpdr, input_stream);
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break;
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case PAKID_CORE_DEVICE_REPLY:
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guac_rdpdr_process_device_reply(rdpdr, input_stream);
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break;
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case PAKID_CORE_DEVICE_IOREQUEST:
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guac_rdpdr_process_device_iorequest(rdpdr, input_stream);
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break;
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case PAKID_CORE_SERVER_CAPABILITY:
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guac_rdpdr_process_server_capability(rdpdr, input_stream);
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break;
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case PAKID_CORE_USER_LOGGEDON:
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guac_rdpdr_process_user_loggedon(rdpdr, input_stream);
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break;
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default:
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guac_client_log_info(rdpdr->client, "Ignoring RDPDR core packet with unexpected ID: 0x%04x", packet_id);
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}
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} /* end if core */
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/* Printer component */
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else if (component == RDPDR_CTYP_PRN) {
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/* Dispatch handlers based on packet ID */
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switch (packet_id) {
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case PAKID_PRN_CACHE_DATA:
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guac_rdpdr_process_prn_cache_data(rdpdr, input_stream);
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break;
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case PAKID_PRN_USING_XPS:
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guac_rdpdr_process_prn_using_xps(rdpdr, input_stream);
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break;
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default:
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guac_client_log_info(rdpdr->client, "Ignoring RDPDR printer packet with unexpected ID: 0x%04x", packet_id);
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}
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} /* end if printer */
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else
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guac_client_log_info(rdpdr->client, "Ignoring packet for unknown RDPDR component: 0x%04x", component);
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}
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