276 lines
9.6 KiB
C
276 lines
9.6 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include "config.h"
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#include "rdpdr_messages.h"
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#include "rdpdr_service.h"
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#include <freerdp/utils/svc_plugin.h>
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#include <guacamole/client.h>
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#ifdef ENABLE_WINPR
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#include <winpr/stream.h>
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#else
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#include "compat/winpr-stream.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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static void guac_rdpdr_send_client_announce_reply(guac_rdpdrPlugin* rdpdr,
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unsigned int major, unsigned int minor, unsigned int client_id) {
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wStream* output_stream = Stream_New(NULL, 12);
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/* Write header */
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Stream_Write_UINT16(output_stream, RDPDR_CTYP_CORE);
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Stream_Write_UINT16(output_stream, PAKID_CORE_CLIENTID_CONFIRM);
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/* Write content */
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Stream_Write_UINT16(output_stream, major);
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Stream_Write_UINT16(output_stream, minor);
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Stream_Write_UINT32(output_stream, client_id);
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svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream);
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}
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static void guac_rdpdr_send_client_name_request(guac_rdpdrPlugin* rdpdr, const char* name) {
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int name_bytes = strlen(name) + 1;
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wStream* output_stream = Stream_New(NULL, 16 + name_bytes);
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/* Write header */
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Stream_Write_UINT16(output_stream, RDPDR_CTYP_CORE);
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Stream_Write_UINT16(output_stream, PAKID_CORE_CLIENT_NAME);
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/* Write content */
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Stream_Write_UINT32(output_stream, 0); /* ASCII */
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Stream_Write_UINT32(output_stream, 0); /* 0 required by RDPDR spec */
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Stream_Write_UINT32(output_stream, name_bytes);
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Stream_Write(output_stream, name, name_bytes);
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svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream);
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}
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static void guac_rdpdr_send_client_capability(guac_rdpdrPlugin* rdpdr) {
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wStream* output_stream = Stream_New(NULL, 256);
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Sending capabilities...");
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/* Write header */
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Stream_Write_UINT16(output_stream, RDPDR_CTYP_CORE);
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Stream_Write_UINT16(output_stream, PAKID_CORE_CLIENT_CAPABILITY);
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/* Capability count + padding */
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Stream_Write_UINT16(output_stream, 3);
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Stream_Write_UINT16(output_stream, 0); /* Padding */
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/* General capability header */
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Stream_Write_UINT16(output_stream, CAP_GENERAL_TYPE);
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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 */
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Stream_Write_UINT32(output_stream, GUAC_OS_TYPE); /* osType - required to be ignored */
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Stream_Write_UINT32(output_stream, 0); /* osVersion */
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Stream_Write_UINT16(output_stream, RDP_CLIENT_MAJOR_ALL); /* protocolMajor */
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Stream_Write_UINT16(output_stream, RDP_CLIENT_MINOR_5_2); /* protocolMinor */
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Stream_Write_UINT32(output_stream, 0xFFFF); /* ioCode1 */
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Stream_Write_UINT32(output_stream, 0); /* ioCode2 */
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Stream_Write_UINT32(output_stream,
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RDPDR_DEVICE_REMOVE_PDUS
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| RDPDR_CLIENT_DISPLAY_NAME
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| RDPDR_USER_LOGGEDON_PDU); /* extendedPDU */
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Stream_Write_UINT32(output_stream, 0); /* extraFlags1 */
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Stream_Write_UINT32(output_stream, 0); /* extraFlags2 */
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Stream_Write_UINT32(output_stream, 0); /* SpecialTypeDeviceCap */
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/* Printer support header */
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Stream_Write_UINT16(output_stream, CAP_PRINTER_TYPE);
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Stream_Write_UINT16(output_stream, 8);
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Stream_Write_UINT32(output_stream, PRINT_CAPABILITY_VERSION_01);
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/* Drive support header */
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Stream_Write_UINT16(output_stream, CAP_DRIVE_TYPE);
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Stream_Write_UINT16(output_stream, 8);
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Stream_Write_UINT32(output_stream, DRIVE_CAPABILITY_VERSION_02);
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svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream);
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Capabilities sent.");
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}
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static void guac_rdpdr_send_client_device_list_announce_request(guac_rdpdrPlugin* rdpdr) {
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int i;
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wStream* output_stream = Stream_New(NULL, 256);
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/* Write header */
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Stream_Write_UINT16(output_stream, RDPDR_CTYP_CORE);
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Stream_Write_UINT16(output_stream, PAKID_CORE_DEVICELIST_ANNOUNCE);
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/* List devices */
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Stream_Write_UINT32(output_stream, rdpdr->devices_registered);
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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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device->announce_handler(device, output_stream, i);
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Registered device %i (%s)",
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device->device_id, device->device_name);
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}
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svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream);
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "All supported devices sent.");
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}
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void guac_rdpdr_process_server_announce(guac_rdpdrPlugin* rdpdr,
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wStream* input_stream) {
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unsigned int major, minor, client_id;
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Stream_Read_UINT16(input_stream, major);
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Stream_Read_UINT16(input_stream, minor);
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Stream_Read_UINT32(input_stream, client_id);
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/* Must choose own client ID if minor not >= 12 */
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if (minor < 12)
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client_id = random() & 0xFFFF;
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Connected to RDPDR %u.%u as client 0x%04x", major, minor, client_id);
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/* Respond to announce */
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guac_rdpdr_send_client_announce_reply(rdpdr, major, minor, client_id);
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/* Name request */
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guac_rdpdr_send_client_name_request(rdpdr, "Guacamole RDP");
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}
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void guac_rdpdr_process_clientid_confirm(guac_rdpdrPlugin* rdpdr, wStream* input_stream) {
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Client ID confirmed");
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}
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void guac_rdpdr_process_device_reply(guac_rdpdrPlugin* rdpdr, wStream* input_stream) {
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unsigned int device_id, ntstatus;
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int severity, c, n, facility, code;
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Stream_Read_UINT32(input_stream, device_id);
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Stream_Read_UINT32(input_stream, ntstatus);
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severity = (ntstatus & 0xC0000000) >> 30;
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c = (ntstatus & 0x20000000) >> 29;
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n = (ntstatus & 0x10000000) >> 28;
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facility = (ntstatus & 0x0FFF0000) >> 16;
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code = ntstatus & 0x0000FFFF;
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/* Log error / information */
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if (device_id < rdpdr->devices_registered) {
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if (severity == 0x0)
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Device %i (%s) connected successfully",
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device_id, rdpdr->devices[device_id].device_name);
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else
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guac_client_log(rdpdr->client, GUAC_LOG_ERROR, "Problem connecting device %i (%s): "
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"severity=0x%x, c=0x%x, n=0x%x, facility=0x%x, code=0x%x",
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device_id, rdpdr->devices[device_id].device_name,
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severity, c, n, facility, code);
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}
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else
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guac_client_log(rdpdr->client, GUAC_LOG_ERROR, "Unknown device ID: 0x%08x", device_id);
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}
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void guac_rdpdr_process_device_iorequest(guac_rdpdrPlugin* rdpdr, wStream* input_stream) {
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int device_id, file_id, completion_id, major_func, minor_func;
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/* Read header */
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Stream_Read_UINT32(input_stream, device_id);
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Stream_Read_UINT32(input_stream, file_id);
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Stream_Read_UINT32(input_stream, completion_id);
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Stream_Read_UINT32(input_stream, major_func);
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Stream_Read_UINT32(input_stream, minor_func);
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/* If printer, run printer handlers */
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if (device_id >= 0 && device_id < rdpdr->devices_registered) {
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/* Call handler on device */
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guac_rdpdr_device* device = &(rdpdr->devices[device_id]);
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device->iorequest_handler(device, input_stream,
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file_id, completion_id, major_func, minor_func);
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}
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else
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guac_client_log(rdpdr->client, GUAC_LOG_ERROR, "Unknown device ID: 0x%08x", device_id);
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}
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void guac_rdpdr_process_server_capability(guac_rdpdrPlugin* rdpdr, wStream* input_stream) {
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int count;
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int i;
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/* Read header */
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Stream_Read_UINT16(input_stream, count);
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Stream_Seek(input_stream, 2);
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/* Parse capabilities */
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for (i=0; i<count; i++) {
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int type;
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int length;
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Stream_Read_UINT16(input_stream, type);
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Stream_Read_UINT16(input_stream, length);
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/* Ignore all for now */
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Ignoring server capability set type=0x%04x, length=%i", type, length);
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Stream_Seek(input_stream, length - 4);
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}
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/* Send own capabilities */
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guac_rdpdr_send_client_capability(rdpdr);
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}
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void guac_rdpdr_process_user_loggedon(guac_rdpdrPlugin* rdpdr, wStream* input_stream) {
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "User logged on");
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guac_rdpdr_send_client_device_list_announce_request(rdpdr);
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}
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void guac_rdpdr_process_prn_cache_data(guac_rdpdrPlugin* rdpdr, wStream* input_stream) {
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Ignoring printer cached configuration data");
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}
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void guac_rdpdr_process_prn_using_xps(guac_rdpdrPlugin* rdpdr, wStream* input_stream) {
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guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Printer unexpectedly switched to XPS mode");
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}
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