diff options
Diffstat (limited to 'include/mgcp/mgcp_internal.h')
| -rw-r--r-- | include/mgcp/mgcp_internal.h | 111 |
1 files changed, 83 insertions, 28 deletions
diff --git a/include/mgcp/mgcp_internal.h b/include/mgcp/mgcp_internal.h index b156aea..3197543 100644 --- a/include/mgcp/mgcp_internal.h +++ b/include/mgcp/mgcp_internal.h @@ -1,13 +1,13 @@ /* MGCP Private Data */ /* - * (C) 2009-2010 by Holger Hans Peter Freyther <zecke@selfish.org> - * (C) 2009-2010 by On-Waves + * (C) 2009-2011 by Holger Hans Peter Freyther <zecke@selfish.org> + * (C) 2009-2011 by On-Waves * All Rights Reserved * - * This program is free software: you can redistribute it and/or modify + * 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 + * 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, @@ -35,6 +35,11 @@ enum mgcp_connection_mode { MGCP_CONN_LOOPBACK = 4, }; +enum mgcp_trunk_type { + MGCP_TRUNK_VIRTUAL, + MGCP_TRUNK_E1, +}; + struct mgcp_rtp_state { int initialized; int patch; @@ -48,47 +53,82 @@ struct mgcp_rtp_state { int32_t timestamp_offset; }; -struct mgcp_endpoint { - uint32_t ci; - char *callid; - char *local_options; - int conn_mode; - int orig_mode; +struct mgcp_rtp_end { + /* statistics */ + unsigned int packets; + struct in_addr addr; - int bts_payload_type; - int net_payload_type; + /* in network byte order */ + int rtp_port, rtcp_port; - /* the local rtp port we are binding to */ - int rtp_port; + int payload_type; /* - * 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 + * Each end has a socket... */ - struct bsc_fd local_rtp; - struct bsc_fd local_rtcp; + struct bsc_fd rtp; + struct bsc_fd rtcp; + + int local_port; + int local_alloc; +}; - struct in_addr remote; - struct in_addr bts; +enum { + MGCP_TAP_BTS_IN, + MGCP_TAP_BTS_OUT, + MGCP_TAP_NET_IN, + MGCP_TAP_NET_OUT, - /* in network byte order */ - int net_rtp, net_rtcp; - int bts_rtp, bts_rtcp; + /* last element */ + MGCP_TAP_COUNT +}; + +struct mgcp_rtp_tap { + int enabled; + struct sockaddr_in forward; +}; + +struct mgcp_endpoint { + int allocated; + uint32_t ci; + char *callid; + char *local_options; + int conn_mode; + int orig_mode; /* backpointer */ struct mgcp_config *cfg; + struct mgcp_trunk_config *tcfg; - /* statistics */ - unsigned int in_bts; - unsigned int in_remote; + /* port status for bts/net */ + struct mgcp_rtp_end bts_end; + struct mgcp_rtp_end net_end; + + /* + * For transcoding we will send from the local_port + * of trans_bts and it will arrive at trans_net from + * where we will forward it to the network. + */ + struct mgcp_rtp_end trans_bts; + struct mgcp_rtp_end trans_net; + int is_transcoded; /* sequence bits */ struct mgcp_rtp_state net_state; struct mgcp_rtp_state bts_state; + + /* SSRC/seq/ts patching for loop */ + int allow_patch; + + /* tap for the endpoint */ + struct mgcp_rtp_tap taps[MGCP_TAP_COUNT]; + + /* Special MGW handling */ + unsigned int audio_port; + int block_processing; }; -#define ENDPOINT_NUMBER(endp) abs(endp - endp->cfg->endpoints) +#define ENDPOINT_NUMBER(endp) abs(endp - endp->tcfg->endpoints) struct mgcp_msg_ptr { unsigned int start; @@ -99,5 +139,20 @@ 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); +int mgcp_bind_bts_rtp_port(struct mgcp_endpoint *endp, int rtp_port); +int mgcp_bind_net_rtp_port(struct mgcp_endpoint *endp, int rtp_port); +int mgcp_bind_trans_bts_rtp_port(struct mgcp_endpoint *enp, int rtp_port); +int mgcp_bind_trans_net_rtp_port(struct mgcp_endpoint *enp, int rtp_port); +int mgcp_free_rtp_port(struct mgcp_rtp_end *end); + +/* For transcoding we need to manage an in and an output that are connected */ +static inline int endp_back_channel(int endpoint) +{ + return endpoint + 60; +} + +struct mgcp_trunk_config *mgcp_trunk_alloc(struct mgcp_config *cfg, int index); +struct mgcp_trunk_config *mgcp_trunk_num(struct mgcp_config *cfg, int index); + #endif |