static BOOL wf_auto_reconnect(freerdp* instance)
{
wfContext* wfc = (wfContext *)instance->context;
UINT32 num_retries = 0;
UINT32 max_retries = instance->settings->AutoReconnectMaxRetries;
/* Only auto reconnect on network disconnects. */
if (freerdp_error_info(instance) != 0)
return FALSE;
/* A network disconnect was detected */
WLog_ERR(TAG, "Network disconnect!");
if (!instance->settings->AutoReconnectionEnabled)
{
/* No auto-reconnect - just quit */
return FALSE;
}
/* Perform an auto-reconnect. */
for (;;)
{
/* Quit retrying if max retries has been exceeded */
if (num_retries++ >= max_retries)
return FALSE;
/* Attempt the next reconnect */
WLog_INFO(TAG, "Attempting reconnect (%u of %u)", num_retries, max_retries);
if (freerdp_reconnect(instance))
{
return TRUE;
}
Sleep(5000);
}
WLog_ERR(TAG, "Maximum reconnect retries exceeded");
return FALSE;
}
void guac_rdp_client_abort(guac_client* client) {
/*
* NOTE: The RDP status codes translated here are documented within
* [MS-RDPBCGR], section 2.2.5.1.1: "Set Error Info PDU Data", in the
* description of the "errorInfo" field.
*
* https://msdn.microsoft.com/en-us/library/cc240544.aspx
*/
guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
freerdp* rdp_inst = rdp_client->rdp_inst;
guac_protocol_status status;
const char* message;
/* Read disconnect reason code from connection */
int error_info = freerdp_error_info(rdp_inst);
/* Translate reason code into Guacamole protocol status */
switch (error_info) {
/* Normal disconnect */
case 0x0: /* ERRINFO_SUCCESS */
status = GUAC_PROTOCOL_STATUS_SUCCESS;
message = "Disconnected.";
break;
/* Forced disconnect (possibly by admin) */
case 0x1: /* ERRINFO_RPC_INITIATED_DISCONNECT */
status = GUAC_PROTOCOL_STATUS_SESSION_CLOSED;
message = "Forcibly disconnected.";
break;
/* The user was logged off (possibly by admin) */
case 0x2: /* ERRINFO_RPC_INITIATED_LOGOFF */
status = GUAC_PROTOCOL_STATUS_SESSION_CLOSED;
message = "Logged off.";
break;
/* The user was idle long enough that the RDP server disconnected */
case 0x3: /* ERRINFO_IDLE_TIMEOUT */
status = GUAC_PROTOCOL_STATUS_SESSION_TIMEOUT;
message = "Idle session time limit exceeded.";
break;
/* The user's session has been active for too long */
case 0x4: /* ERRINFO_LOGON_TIMEOUT */
status = GUAC_PROTOCOL_STATUS_SESSION_CLOSED;
message = "Active session time limit exceeded.";
break;
/* Another user logged on, disconnecting this user */
case 0x5: /* ERRINFO_DISCONNECTED_BY_OTHER_CONNECTION */
status = GUAC_PROTOCOL_STATUS_SESSION_CONFLICT;
message = "Disconnected by other connection.";
break;
/* The RDP server is refusing to service the connection */
case 0x6: /* ERRINFO_OUT_OF_MEMORY */
case 0x7: /* ERRINFO_SERVER_DENIED_CONNECTION */
status = GUAC_PROTOCOL_STATUS_UPSTREAM_UNAVAILABLE;
message = "Server refused connection.";
break;
/* The user does not have permission to connect */
case 0x9: /* ERRINFO_SERVER_INSUFFICIENT_PRIVILEGES */
status = GUAC_PROTOCOL_STATUS_CLIENT_FORBIDDEN;
message = "Insufficient privileges.";
break;
/* The user's credentials have expired */
case 0xA: /* ERRINFO_SERVER_FRESH_CREDENTIALS_REQUIRED */
status = GUAC_PROTOCOL_STATUS_CLIENT_FORBIDDEN;
message = "Credentials expired.";
break;
/* The user manually disconnected using an administrative tool within
* the session */
case 0xB: /* ERRINFO_RPC_INITIATED_DISCONNECT_BYUSER */
status = GUAC_PROTOCOL_STATUS_SUCCESS;
message = "Manually disconnected.";
break;
/* The user manually logged off */
case 0xC: /* ERRINFO_LOGOFF_BY_USER */
status = GUAC_PROTOCOL_STATUS_SUCCESS;
message = "Manually logged off.";
break;
/* Unimplemented/unknown disconnect reason code */
default:
status = GUAC_PROTOCOL_STATUS_UPSTREAM_ERROR;
message = "Upstream error.";
}
/* Send error code if an error occurred */
if (status != GUAC_PROTOCOL_STATUS_SUCCESS) {
guac_protocol_send_error(client->socket, message, status);
guac_socket_flush(client->socket);
}
/* Log human-readable description of disconnect at info level */
guac_client_log(client, GUAC_LOG_INFO, "RDP server closed connection: %s",
message);
/* Log internal disconnect reason code at debug level */
if (error_info)
guac_client_log(client, GUAC_LOG_DEBUG, "Disconnect reason "
"code: 0x%X.", error_info);
/* Abort connection */
guac_client_stop(client);
}
