guacamole-spice-protocol/src/protocols/rdp/guac_rdpdr/rdpdr_messages.c

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-rdp.
*
* The Initial Developer of the Original Code is
* Michael Jumper.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include <pthread.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/svc_plugin.h>
#include <guacamole/client.h>
#include "rdpdr_service.h"
#include "rdpdr_messages.h"
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#include "rdpdr_printer.h"
#include "client.h"
static void guac_rdpdr_send_client_announce_reply(guac_rdpdrPlugin* rdpdr,
unsigned int major, unsigned int minor, unsigned int client_id) {
STREAM* output_stream = stream_new(12);
/* Write header */
stream_write_uint16(output_stream, RDPDR_CTYP_CORE);
stream_write_uint16(output_stream, PAKID_CORE_CLIENTID_CONFIRM);
/* Write content */
stream_write_uint16(output_stream, major);
stream_write_uint16(output_stream, minor);
stream_write_uint32(output_stream, client_id);
svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream);
}
static void guac_rdpdr_send_client_name_request(guac_rdpdrPlugin* rdpdr, const char* name) {
int name_bytes = strlen(name) + 1;
STREAM* output_stream = stream_new(16 + name_bytes);
/* Write header */
stream_write_uint16(output_stream, RDPDR_CTYP_CORE);
stream_write_uint16(output_stream, PAKID_CORE_CLIENT_NAME);
/* Write content */
stream_write_uint32(output_stream, 0); /* ASCII */
stream_write_uint32(output_stream, 0); /* 0 required by RDPDR spec */
stream_write_uint32(output_stream, name_bytes);
stream_write(output_stream, name, name_bytes);
svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream);
}
static void guac_rdpdr_send_client_capability(guac_rdpdrPlugin* rdpdr) {
STREAM* output_stream = stream_new(256);
guac_client_log_info(rdpdr->client, "Sending capabilities...");
/* Write header */
stream_write_uint16(output_stream, RDPDR_CTYP_CORE);
stream_write_uint16(output_stream, PAKID_CORE_CLIENT_CAPABILITY);
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/* Capability count + padding */
stream_write_uint16(output_stream, 2);
stream_write_uint16(output_stream, 0); /* Padding */
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/* General capability header */
stream_write_uint16(output_stream, CAP_GENERAL_TYPE);
stream_write_uint16(output_stream, 44);
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stream_write_uint32(output_stream, GENERAL_CAPABILITY_VERSION_02);
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/* General capability data */
stream_write_uint32(output_stream, GUAC_OS_TYPE); /* osType - required to be ignored */
stream_write_uint32(output_stream, 0); /* osVersion */
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stream_write_uint16(output_stream, RDP_CLIENT_MAJOR_ALL); /* protocolMajor */
stream_write_uint16(output_stream, RDP_CLIENT_MINOR_5_2); /* protocolMinor */
stream_write_uint32(output_stream, 0xFFFF); /* ioCode1 */
stream_write_uint32(output_stream, 0); /* ioCode2 */
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stream_write_uint32(output_stream,
RDPDR_DEVICE_REMOVE_PDUS
| RDPDR_CLIENT_DISPLAY_NAME
| RDPDR_USER_LOGGEDON_PDU); /* extendedPDU */
stream_write_uint32(output_stream, 0); /* extraFlags1 */
stream_write_uint32(output_stream, 0); /* extraFlags2 */
stream_write_uint32(output_stream, 0); /* SpecialTypeDeviceCap */
/* Printer support header */
stream_write_uint16(output_stream, CAP_PRINTER_TYPE);
stream_write_uint16(output_stream, 8);
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stream_write_uint32(output_stream, PRINT_CAPABILITY_VERSION_01);
svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream);
guac_client_log_info(rdpdr->client, "Capabilities sent.");
}
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static void guac_rdpdr_send_client_device_list_announce_request(guac_rdpdrPlugin* rdpdr) {
STREAM* output_stream = stream_new(256);
/* Write header */
stream_write_uint16(output_stream, RDPDR_CTYP_CORE);
stream_write_uint16(output_stream, PAKID_CORE_DEVICELIST_ANNOUNCE);
/* Only one device for now */
stream_write_uint32(output_stream, 1);
/* Printer header */
guac_client_log_info(rdpdr->client, "Sending printer");
stream_write_uint32(output_stream, RDPDR_DTYP_PRINT);
stream_write_uint32(output_stream, GUAC_PRINTER_DEVICE_ID);
stream_write(output_stream, "PRN1\0\0\0\0", 8); /* DOS name */
/* Printer data */
stream_write_uint32(output_stream, 24 + GUAC_PRINTER_DRIVER_LENGTH + GUAC_PRINTER_NAME_LENGTH);
stream_write_uint32(output_stream,
RDPDR_PRINTER_ANNOUNCE_FLAG_DEFAULTPRINTER
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| RDPDR_PRINTER_ANNOUNCE_FLAG_NETWORKPRINTER);
stream_write_uint32(output_stream, 0); /* reserved - must be 0 */
stream_write_uint32(output_stream, 0); /* PnPName length (PnPName is ultimately ignored) */
stream_write_uint32(output_stream, GUAC_PRINTER_DRIVER_LENGTH); /* DriverName length */
stream_write_uint32(output_stream, GUAC_PRINTER_NAME_LENGTH); /* PrinterName length */
stream_write_uint32(output_stream, 0); /* CachedFields length */
stream_write(output_stream, GUAC_PRINTER_DRIVER, GUAC_PRINTER_DRIVER_LENGTH);
stream_write(output_stream, GUAC_PRINTER_NAME, GUAC_PRINTER_NAME_LENGTH);
svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream);
guac_client_log_info(rdpdr->client, "All supported devices sent.");
}
void guac_rdpdr_process_server_announce(guac_rdpdrPlugin* rdpdr,
STREAM* input_stream) {
unsigned int major, minor, client_id;
stream_read_uint16(input_stream, major);
stream_read_uint16(input_stream, minor);
stream_read_uint32(input_stream, client_id);
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/* Must choose own client ID if minor not >= 12 */
if (minor < 12)
client_id = random() & 0xFFFF;
guac_client_log_info(rdpdr->client, "Connected to RDPDR %u.%u as client 0x%04x", major, minor, client_id);
/* Respond to announce */
guac_rdpdr_send_client_announce_reply(rdpdr, major, minor, client_id);
/* Name request */
guac_rdpdr_send_client_name_request(rdpdr, "Guacamole RDP");
}
void guac_rdpdr_process_clientid_confirm(guac_rdpdrPlugin* rdpdr, STREAM* input_stream) {
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guac_client_log_info(rdpdr->client, "Client ID confirmed");
}
void guac_rdpdr_process_device_reply(guac_rdpdrPlugin* rdpdr, STREAM* input_stream) {
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unsigned int device_id, ntstatus;
int severity, c, n, facility, code;
stream_read_uint32(input_stream, device_id);
stream_read_uint32(input_stream, ntstatus);
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severity = (ntstatus & 0xC0000000) >> 30;
c = (ntstatus & 0x20000000) >> 29;
n = (ntstatus & 0x10000000) >> 28;
facility = (ntstatus & 0x0FFF0000) >> 16;
code = ntstatus & 0x0000FFFF;
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/* Log error / information */
if (device_id == GUAC_PRINTER_DEVICE_ID) {
if (severity == 0x0)
guac_client_log_info(rdpdr->client, "Printer connected successfully");
else
guac_client_log_error(rdpdr->client, "Problem connecting printer: "
"severity=0x%x, c=0x%x, n=0x%x, facility=0x%x, code=0x%x",
severity, c, n, facility, code);
}
else
guac_client_log_error(rdpdr->client, "Unknown device ID: 0x%08x", device_id);
}
void guac_rdpdr_process_device_iorequest(guac_rdpdrPlugin* rdpdr, STREAM* input_stream) {
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int device_id, completion_id, major_func, minor_func;
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/* Read header */
stream_read_uint32(input_stream, device_id);
stream_seek(input_stream, 4); /* file_id - currently skipped (not used in printer) */
stream_read_uint32(input_stream, completion_id);
stream_read_uint32(input_stream, major_func);
stream_read_uint32(input_stream, minor_func);
/* If printer, run printer handlers */
if (device_id == GUAC_PRINTER_DEVICE_ID) {
switch (major_func) {
/* Print job create */
case IRP_MJ_CREATE:
guac_rdpdr_process_print_job_create(rdpdr, input_stream, completion_id);
break;
/* Printer job write */
case IRP_MJ_WRITE:
guac_rdpdr_process_print_job_write(rdpdr, input_stream, completion_id);
break;
/* Printer job close */
case IRP_MJ_CLOSE:
guac_rdpdr_process_print_job_close(rdpdr, input_stream, completion_id);
break;
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/* Log unknown */
default:
guac_client_log_error(rdpdr->client, "Unknown printer I/O request function: 0x%x/0x%x",
major_func, minor_func);
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}
}
else
guac_client_log_error(rdpdr->client, "Unknown device ID: 0x%08x", device_id);
}
void guac_rdpdr_process_server_capability(guac_rdpdrPlugin* rdpdr, STREAM* input_stream) {
int count;
int i;
/* Read header */
stream_read_uint16(input_stream, count);
stream_seek(input_stream, 2);
/* Parse capabilities */
for (i=0; i<count; i++) {
int type;
int length;
stream_read_uint16(input_stream, type);
stream_read_uint16(input_stream, length);
/* Ignore all for now */
guac_client_log_info(rdpdr->client, "Ignoring server capability set type=0x%04x, length=%i", type, length);
stream_seek(input_stream, length - 4);
}
/* Send own capabilities */
guac_rdpdr_send_client_capability(rdpdr);
}
void guac_rdpdr_process_user_loggedon(guac_rdpdrPlugin* rdpdr, STREAM* input_stream) {
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guac_client_log_info(rdpdr->client, "User logged on");
guac_rdpdr_send_client_device_list_announce_request(rdpdr);
}
void guac_rdpdr_process_prn_cache_data(guac_rdpdrPlugin* rdpdr, STREAM* input_stream) {
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guac_client_log_info(rdpdr->client, "Ignoring printer cached configuration data");
}
void guac_rdpdr_process_prn_using_xps(guac_rdpdrPlugin* rdpdr, STREAM* input_stream) {
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guac_client_log_info(rdpdr->client, "Printer unexpectedly switched to XPS mode");
}