63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
/* (C) 2017 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* All Rights Reserved
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*
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* Author: Philipp Maier
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#include <osmocom/mgcp_client/mgcp_common.h>
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#include <osmocom/mgcp_client/mgcp_client.h>
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/* MGCP state handler context. This context information stores all information
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* to handle the direction of the RTP streams via MGCP. There is one instance
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* of this context struct per subscriber connection.
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* (see also struct osmo_bsc_sccp_con) */
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struct mgcp_ctx {
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/* FSM instance, which handles the connection switching procedure */
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struct osmo_fsm_inst *fsm;
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/* RTP endpoint number. This number number identifies the endpoint
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* on the MGW on which the BTS and NET connection is created. This
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* endpoint number is assigned and released automatically. */
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uint16_t rtp_endpoint;
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/* RTP connection identifiers */
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char conn_id_bts[MGCP_CONN_ID_LENGTH];
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char conn_id_net[MGCP_CONN_ID_LENGTH];
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/* Copy of the pointer and the data with context information
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* needed to process the AoIP and MGCP requests (system data) */
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struct mgcp_client *mgcp;
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struct gsm_subscriber_connection *conn;
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enum gsm48_chan_mode chan_mode;
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bool full_rate;
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struct gsm_lchan *lchan;
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struct gsm_lchan *ho_lchan;
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struct msgb *resp;
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mgcp_trans_id_t mgw_pending_trans;
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};
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void mgcp_init(struct gsm_network *net);
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struct mgcp_ctx *mgcp_assignm_req(void *ctx, struct mgcp_client *mgcp,
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struct gsm_subscriber_connection *conn,
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enum gsm48_chan_mode chan_mode, bool full_rate);
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void mgcp_clear_complete(struct mgcp_ctx *mgcp_ctx, struct msgb *resp);
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void mgcp_ass_complete(struct mgcp_ctx *mgcp_ctx, struct gsm_lchan *lchan);
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void mgcp_free_ctx(struct mgcp_ctx *mgcp_ctx);
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