| /* (C) 2017 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de> |
| * All Rights Reserved |
| * |
| * Author: Philipp Maier |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation; either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Affero General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #pragma once |
| |
| #include <osmocom/mgcp_client/mgcp_client.h> |
| #include <osmocom/msc/gsm_data.h> |
| |
| /* MGCP state handler context. This context information stores all information |
| * to handle the direction of the RTP streams via MGCP. There is one instance |
| * of this context struct per subscriber connection. |
| * (see also struct gsm_subscriber_connection) */ |
| struct mgcp_ctx { |
| /* FSM instance, which handles the connection switching procedure */ |
| struct osmo_fsm_inst *fsm; |
| |
| /* RTP endpoint string. This string identifies the endpoint |
| * on the MGW on which the RAN and CN connection is created. This |
| * endpoint number is assigned by the MGW. */ |
| char rtp_endpoint[MGCP_ENDPOINT_MAXLEN]; |
| |
| /* Call id of the current call. Will be derived from the callref |
| * of the transaction that is valid during the first CRCX. (The |
| * callref may change throughout the call) */ |
| unsigned int call_id; |
| |
| /* Set to true, when the context information is no longer needed */ |
| bool free_ctx; |
| |
| /* RTP connection identifiers */ |
| char conn_id_ran[MGCP_CONN_ID_LENGTH]; |
| char conn_id_cn[MGCP_CONN_ID_LENGTH]; |
| |
| /* Copy of the pointer and the data with context information |
| * needed to process the AoIP and MGCP requests (system data) */ |
| struct mgcp_client *mgcp; |
| struct gsm_trans *trans; |
| mgcp_trans_id_t mgw_pending_trans; |
| }; |
| |
| int msc_mgcp_call_assignment(struct gsm_trans *trans); |
| int msc_mgcp_ass_complete(struct gsm_subscriber_connection *conn, uint16_t port, char *addr); |
| int msc_mgcp_call_complete(struct gsm_trans *trans, uint16_t port, char *addr); |
| int msc_mgcp_call_release(struct gsm_trans *trans); |