| /* 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 General Public License as published by |
| * the Free Software Foundation; either version 2 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| #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_rtp_end { |
| /* statistics */ |
| unsigned int packets; |
| struct in_addr addr; |
| |
| /* in network byte order */ |
| int rtp_port, rtcp_port; |
| |
| int payload_type; |
| |
| int local_port; |
| }; |
| |
| struct mgcp_endpoint { |
| int ci; |
| char *callid; |
| char *local_options; |
| int conn_mode; |
| int orig_mode; |
| |
| /* |
| * 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; |
| |
| /* backpointer */ |
| struct mgcp_config *cfg; |
| |
| /* port status for bts/net */ |
| struct mgcp_rtp_end bts_end; |
| struct mgcp_rtp_end net_end; |
| |
| /* 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 |