104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
/* MGCP Private Data */
|
|
|
|
/*
|
|
* (C) 2009-2010 by Holger Hans Peter Freyther <zecke@selfish.org>
|
|
* (C) 2009-2010 by On-Waves
|
|
* All Rights Reserved
|
|
*
|
|
* 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/>.
|
|
*
|
|
*/
|
|
|
|
#ifndef OPENBSC_MGCP_DATA_H
|
|
#define OPENBSC_MGCP_DATA_H
|
|
|
|
#include <osmocore/select.h>
|
|
|
|
#define CI_UNUSED 0
|
|
|
|
enum mgcp_connection_mode {
|
|
MGCP_CONN_NONE = 0,
|
|
MGCP_CONN_RECV_ONLY = 1,
|
|
MGCP_CONN_SEND_ONLY = 2,
|
|
MGCP_CONN_RECV_SEND = MGCP_CONN_RECV_ONLY | MGCP_CONN_SEND_ONLY,
|
|
MGCP_CONN_LOOPBACK = 4,
|
|
};
|
|
|
|
struct mgcp_rtp_state {
|
|
int initialized;
|
|
int patch;
|
|
|
|
uint32_t orig_ssrc;
|
|
uint32_t ssrc;
|
|
uint16_t seq_no;
|
|
int lost_no;
|
|
int seq_offset;
|
|
uint32_t last_timestamp;
|
|
int32_t timestamp_offset;
|
|
};
|
|
|
|
struct mgcp_endpoint {
|
|
uint32_t ci;
|
|
char *callid;
|
|
char *local_options;
|
|
int conn_mode;
|
|
int orig_mode;
|
|
|
|
int bts_payload_type;
|
|
int net_payload_type;
|
|
|
|
/* the local rtp port we are binding to */
|
|
int rtp_port;
|
|
|
|
/*
|
|
* RTP mangling:
|
|
* - we get RTP and RTCP to us and need to forward to the BTS
|
|
* - we get RTP and RTCP from the BTS and forward to the network
|
|
*/
|
|
struct bsc_fd local_rtp;
|
|
struct bsc_fd local_rtcp;
|
|
|
|
struct in_addr remote;
|
|
struct in_addr bts;
|
|
|
|
/* in network byte order */
|
|
int net_rtp, net_rtcp;
|
|
int bts_rtp, bts_rtcp;
|
|
|
|
/* backpointer */
|
|
struct mgcp_config *cfg;
|
|
|
|
/* statistics */
|
|
unsigned int in_bts;
|
|
unsigned int in_remote;
|
|
|
|
/* sequence bits */
|
|
struct mgcp_rtp_state net_state;
|
|
struct mgcp_rtp_state bts_state;
|
|
};
|
|
|
|
#define ENDPOINT_NUMBER(endp) abs(endp - endp->cfg->endpoints)
|
|
|
|
struct mgcp_msg_ptr {
|
|
unsigned int start;
|
|
unsigned int length;
|
|
};
|
|
|
|
int mgcp_analyze_header(struct mgcp_config *cfg, struct msgb *msg,
|
|
struct mgcp_msg_ptr *ptr, int size,
|
|
const char **transaction_id, struct mgcp_endpoint **endp);
|
|
int mgcp_send_dummy(struct mgcp_endpoint *endp);
|
|
|
|
#endif
|