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

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/*
* Copyright (C) 2013 Glyptodon LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "config.h"
#include "client.h"
#include "rdpdr_messages.h"
#include "rdpdr_printer.h"
#include "rdpdr_service.h"
#include <pthread.h>
#include <stdlib.h>
#include <string.h>
#include <freerdp/constants.h>
#include <freerdp/utils/svc_plugin.h>
#include <guacamole/client.h>
#ifdef ENABLE_WINPR
#include <winpr/stream.h>
#include <winpr/wtypes.h>
#else
#include "compat/winpr-stream.h"
#include "compat/winpr-wtypes.h"
#endif
static void guac_rdpdr_send_client_announce_reply(guac_rdpdrPlugin* rdpdr,
unsigned int major, unsigned int minor, unsigned int client_id) {
wStream* output_stream = Stream_New(NULL, 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;
wStream* output_stream = Stream_New(NULL, 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) {
wStream* output_stream = Stream_New(NULL, 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);
/* Capability count + padding */
Stream_Write_UINT16(output_stream, 3);
Stream_Write_UINT16(output_stream, 0); /* Padding */
/* General capability header */
Stream_Write_UINT16(output_stream, CAP_GENERAL_TYPE);
Stream_Write_UINT16(output_stream, 44);
Stream_Write_UINT32(output_stream, GENERAL_CAPABILITY_VERSION_02);
/* General capability data */
Stream_Write_UINT32(output_stream, GUAC_OS_TYPE); /* osType - required to be ignored */
Stream_Write_UINT32(output_stream, 0); /* osVersion */
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 */
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);
Stream_Write_UINT32(output_stream, PRINT_CAPABILITY_VERSION_01);
/* Drive support header */
Stream_Write_UINT16(output_stream, CAP_DRIVE_TYPE);
Stream_Write_UINT16(output_stream, 8);
Stream_Write_UINT32(output_stream, DRIVE_CAPABILITY_VERSION_02);
svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream);
guac_client_log_info(rdpdr->client, "Capabilities sent.");
}
static void guac_rdpdr_send_client_device_list_announce_request(guac_rdpdrPlugin* rdpdr) {
int i;
wStream* output_stream = Stream_New(NULL, 256);
/* Write header */
Stream_Write_UINT16(output_stream, RDPDR_CTYP_CORE);
Stream_Write_UINT16(output_stream, PAKID_CORE_DEVICELIST_ANNOUNCE);
/* List devices */
Stream_Write_UINT32(output_stream, rdpdr->devices_registered);
for (i=0; i<rdpdr->devices_registered; i++) {
guac_rdpdr_device* device = &(rdpdr->devices[i]);
device->announce_handler(device, output_stream, i);
guac_client_log_info(rdpdr->client, "Registered device %i (%s)",
device->device_id, device->device_name);
}
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,
wStream* 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);
/* 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, wStream* input_stream) {
guac_client_log_info(rdpdr->client, "Client ID confirmed");
}
void guac_rdpdr_process_device_reply(guac_rdpdrPlugin* rdpdr, wStream* input_stream) {
unsigned int device_id, ntstatus;
int severity, c, n, facility, code;
Stream_Read_UINT32(input_stream, device_id);
Stream_Read_UINT32(input_stream, ntstatus);
severity = (ntstatus & 0xC0000000) >> 30;
c = (ntstatus & 0x20000000) >> 29;
n = (ntstatus & 0x10000000) >> 28;
facility = (ntstatus & 0x0FFF0000) >> 16;
code = ntstatus & 0x0000FFFF;
/* Log error / information */
if (device_id < rdpdr->devices_registered) {
if (severity == 0x0)
guac_client_log_info(rdpdr->client, "Device %i (%s) connected successfully",
device_id, rdpdr->devices[device_id].device_name);
else
guac_client_log_error(rdpdr->client, "Problem connecting device %i (%s): "
"severity=0x%x, c=0x%x, n=0x%x, facility=0x%x, code=0x%x",
device_id, rdpdr->devices[device_id].device_name,
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, wStream* input_stream) {
int device_id, file_id, completion_id, major_func, minor_func;
/* Read header */
Stream_Read_UINT32(input_stream, device_id);
Stream_Read_UINT32(input_stream, file_id);
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 >= 0 && device_id < rdpdr->devices_registered) {
/* Call handler on device */
guac_rdpdr_device* device = &(rdpdr->devices[device_id]);
device->iorequest_handler(device, input_stream,
file_id, completion_id, major_func, minor_func);
}
else
guac_client_log_error(rdpdr->client, "Unknown device ID: 0x%08x", device_id);
}
void guac_rdpdr_process_server_capability(guac_rdpdrPlugin* rdpdr, wStream* 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, wStream* input_stream) {
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, wStream* input_stream) {
guac_client_log_info(rdpdr->client, "Ignoring printer cached configuration data");
}
void guac_rdpdr_process_prn_using_xps(guac_rdpdrPlugin* rdpdr, wStream* input_stream) {
guac_client_log_info(rdpdr->client, "Printer unexpectedly switched to XPS mode");
}
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