/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 "rdpdr_messages.h" #include "rdpdr_service.h" #include #include #ifdef ENABLE_WINPR #include #else #include "compat/winpr-stream.h" #endif #include #include 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(rdpdr->client, GUAC_LOG_INFO, "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(rdpdr->client, GUAC_LOG_INFO, "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; idevices_registered; i++) { guac_rdpdr_device* device = &(rdpdr->devices[i]); device->announce_handler(device, output_stream, i); guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Registered device %i (%s)", device->device_id, device->device_name); } svc_plugin_send((rdpSvcPlugin*) rdpdr, output_stream); guac_client_log(rdpdr->client, GUAC_LOG_INFO, "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(rdpdr->client, GUAC_LOG_INFO, "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(rdpdr->client, GUAC_LOG_INFO, "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(rdpdr->client, GUAC_LOG_INFO, "Device %i (%s) connected successfully", device_id, rdpdr->devices[device_id].device_name); else guac_client_log(rdpdr->client, GUAC_LOG_ERROR, "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(rdpdr->client, GUAC_LOG_ERROR, "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(rdpdr->client, GUAC_LOG_ERROR, "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; iclient, GUAC_LOG_INFO, "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(rdpdr->client, GUAC_LOG_INFO, "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(rdpdr->client, GUAC_LOG_INFO, "Ignoring printer cached configuration data"); } void guac_rdpdr_process_prn_using_xps(guac_rdpdrPlugin* rdpdr, wStream* input_stream) { guac_client_log(rdpdr->client, GUAC_LOG_INFO, "Printer unexpectedly switched to XPS mode"); }