145 lines
5.1 KiB
C
145 lines
5.1 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 "error.h"
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#include "rdp.h"
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#include <freerdp/freerdp.h>
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#include <guacamole/client.h>
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#include <guacamole/protocol.h>
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#include <guacamole/socket.h>
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void guac_rdp_client_abort(guac_client* client) {
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/*
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* NOTE: The RDP status codes translated here are documented within
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* [MS-RDPBCGR], section 2.2.5.1.1: "Set Error Info PDU Data", in the
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* description of the "errorInfo" field.
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*
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* https://msdn.microsoft.com/en-us/library/cc240544.aspx
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*/
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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freerdp* rdp_inst = rdp_client->rdp_inst;
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guac_protocol_status status;
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const char* message;
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/* Read disconnect reason code from connection */
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int error_info = freerdp_error_info(rdp_inst);
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/* Translate reason code into Guacamole protocol status */
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switch (error_info) {
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/* Normal disconnect */
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case 0x0: /* ERRINFO_SUCCESS */
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status = GUAC_PROTOCOL_STATUS_SUCCESS;
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message = "Disconnected.";
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break;
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/* Forced disconnect (possibly by admin) */
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case 0x1: /* ERRINFO_RPC_INITIATED_DISCONNECT */
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status = GUAC_PROTOCOL_STATUS_SESSION_CLOSED;
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message = "Forcibly disconnected.";
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break;
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/* The user was logged off (possibly by admin) */
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case 0x2: /* ERRINFO_RPC_INITIATED_LOGOFF */
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status = GUAC_PROTOCOL_STATUS_SESSION_CLOSED;
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message = "Logged off.";
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break;
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/* The user was idle long enough that the RDP server disconnected */
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case 0x3: /* ERRINFO_IDLE_TIMEOUT */
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status = GUAC_PROTOCOL_STATUS_SESSION_TIMEOUT;
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message = "Idle session time limit exceeded.";
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break;
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/* The user's session has been active for too long */
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case 0x4: /* ERRINFO_LOGON_TIMEOUT */
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status = GUAC_PROTOCOL_STATUS_SESSION_CLOSED;
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message = "Active session time limit exceeded.";
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break;
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/* Another user logged on, disconnecting this user */
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case 0x5: /* ERRINFO_DISCONNECTED_BY_OTHER_CONNECTION */
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status = GUAC_PROTOCOL_STATUS_SESSION_CONFLICT;
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message = "Disconnected by other connection.";
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break;
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/* The RDP server is refusing to service the connection */
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case 0x6: /* ERRINFO_OUT_OF_MEMORY */
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case 0x7: /* ERRINFO_SERVER_DENIED_CONNECTION */
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status = GUAC_PROTOCOL_STATUS_UPSTREAM_UNAVAILABLE;
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message = "Server refused connection.";
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break;
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/* The user does not have permission to connect */
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case 0x9: /* ERRINFO_SERVER_INSUFFICIENT_PRIVILEGES */
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status = GUAC_PROTOCOL_STATUS_CLIENT_FORBIDDEN;
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message = "Insufficient privileges.";
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break;
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/* The user's credentials have expired */
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case 0xA: /* ERRINFO_SERVER_FRESH_CREDENTIALS_REQUIRED */
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status = GUAC_PROTOCOL_STATUS_CLIENT_FORBIDDEN;
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message = "Credentials expired.";
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break;
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/* The user manually disconnected using an administrative tool within
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* the session */
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case 0xB: /* ERRINFO_RPC_INITIATED_DISCONNECT_BYUSER */
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status = GUAC_PROTOCOL_STATUS_SUCCESS;
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message = "Manually disconnected.";
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break;
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/* The user manually logged off */
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case 0xC: /* ERRINFO_LOGOFF_BY_USER */
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status = GUAC_PROTOCOL_STATUS_SUCCESS;
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message = "Manually logged off.";
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break;
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/* Unimplemented/unknown disconnect reason code */
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default:
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status = GUAC_PROTOCOL_STATUS_UPSTREAM_ERROR;
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message = "Upstream error.";
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}
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/* Send error code if an error occurred */
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if (status != GUAC_PROTOCOL_STATUS_SUCCESS) {
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guac_protocol_send_error(client->socket, message, status);
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guac_socket_flush(client->socket);
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}
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/* Log human-readable description of disconnect at info level */
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guac_client_log(client, GUAC_LOG_INFO, "RDP server closed connection: %s",
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message);
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/* Log internal disconnect reason code at debug level */
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if (error_info)
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guac_client_log(client, GUAC_LOG_DEBUG, "Disconnect reason "
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"code: 0x%X.", error_info);
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/* Abort connection */
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guac_client_stop(client);
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}
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