Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 1 | /* MGCP Private Data */ |
| 2 | |
| 3 | /* |
Holger Hans Peter Freyther | 38e02c5 | 2012-10-22 18:09:35 +0200 | [diff] [blame] | 4 | * (C) 2009-2012 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 5 | * (C) 2009-2012 by On-Waves |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 6 | * All Rights Reserved |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 9 | * it under the terms of the GNU Affero General Public License as published by |
| 10 | * the Free Software Foundation; either version 3 of the License, or |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 16 | * GNU Affero General Public License for more details. |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 17 | * |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 18 | * You should have received a copy of the GNU Affero General Public License |
| 19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 20 | * |
| 21 | */ |
| 22 | |
Holger Hans Peter Freyther | f6b61e6 | 2014-05-22 17:06:14 +0200 | [diff] [blame] | 23 | #pragma once |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 24 | |
Holger Hans Peter Freyther | a611da8 | 2015-08-14 09:24:11 +0200 | [diff] [blame] | 25 | #include <string.h> |
| 26 | |
Pablo Neira Ayuso | 136f453 | 2011-03-22 16:47:59 +0100 | [diff] [blame] | 27 | #include <osmocom/core/select.h> |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 28 | |
| 29 | #define CI_UNUSED 0 |
| 30 | |
Holger Hans Peter Freyther | 98a3877 | 2010-08-03 02:27:21 +0800 | [diff] [blame] | 31 | enum mgcp_connection_mode { |
| 32 | MGCP_CONN_NONE = 0, |
| 33 | MGCP_CONN_RECV_ONLY = 1, |
| 34 | MGCP_CONN_SEND_ONLY = 2, |
| 35 | MGCP_CONN_RECV_SEND = MGCP_CONN_RECV_ONLY | MGCP_CONN_SEND_ONLY, |
Jacob Erlbeck | e35fd13 | 2014-01-16 16:50:40 +0100 | [diff] [blame] | 36 | MGCP_CONN_LOOPBACK = 4 | MGCP_CONN_RECV_SEND, |
Holger Hans Peter Freyther | 98a3877 | 2010-08-03 02:27:21 +0800 | [diff] [blame] | 37 | }; |
| 38 | |
Holger Hans Peter Freyther | 88ad772 | 2011-02-28 00:56:17 +0100 | [diff] [blame] | 39 | enum mgcp_trunk_type { |
| 40 | MGCP_TRUNK_VIRTUAL, |
| 41 | MGCP_TRUNK_E1, |
| 42 | }; |
| 43 | |
Jacob Erlbeck | 50079a1 | 2013-11-25 12:53:28 +0100 | [diff] [blame] | 44 | struct mgcp_rtp_stream_state { |
| 45 | uint32_t ssrc; |
| 46 | uint16_t last_seq; |
| 47 | uint32_t last_timestamp; |
| 48 | uint32_t err_ts_counter; |
| 49 | int32_t last_tsdelta; |
Jacob Erlbeck | eacc9b9 | 2014-01-30 21:01:35 +0100 | [diff] [blame] | 50 | uint32_t last_arrival_time; |
Jacob Erlbeck | 50079a1 | 2013-11-25 12:53:28 +0100 | [diff] [blame] | 51 | }; |
| 52 | |
Holger Hans Peter Freyther | 3186892 | 2010-08-03 11:59:04 +0000 | [diff] [blame] | 53 | struct mgcp_rtp_state { |
| 54 | int initialized; |
Jacob Erlbeck | 58340e5 | 2013-11-29 11:20:06 +0100 | [diff] [blame] | 55 | int patch_ssrc; |
Holger Hans Peter Freyther | 3186892 | 2010-08-03 11:59:04 +0000 | [diff] [blame] | 56 | |
Holger Hans Peter Freyther | 6aa882b | 2010-08-03 14:35:50 +0000 | [diff] [blame] | 57 | uint32_t orig_ssrc; |
Holger Hans Peter Freyther | ed3a661 | 2012-10-22 17:08:48 +0200 | [diff] [blame] | 58 | |
Holger Hans Peter Freyther | 6aa882b | 2010-08-03 14:35:50 +0000 | [diff] [blame] | 59 | int seq_offset; |
Holger Hans Peter Freyther | ed3a661 | 2012-10-22 17:08:48 +0200 | [diff] [blame] | 60 | |
Holger Hans Peter Freyther | 6aa882b | 2010-08-03 14:35:50 +0000 | [diff] [blame] | 61 | int32_t timestamp_offset; |
Jacob Erlbeck | 30ce422 | 2013-12-05 12:02:15 +0100 | [diff] [blame] | 62 | uint32_t packet_duration; |
Jacob Erlbeck | 50079a1 | 2013-11-25 12:53:28 +0100 | [diff] [blame] | 63 | |
| 64 | struct mgcp_rtp_stream_state in_stream; |
| 65 | struct mgcp_rtp_stream_state out_stream; |
Holger Hans Peter Freyther | a5a59c9 | 2014-10-06 20:04:42 +0200 | [diff] [blame] | 66 | |
| 67 | /* jitter and packet loss calculation */ |
| 68 | int stats_initialized; |
| 69 | uint16_t stats_base_seq; |
| 70 | uint16_t stats_max_seq; |
| 71 | uint32_t stats_ssrc; |
| 72 | uint32_t stats_jitter; |
| 73 | int32_t stats_transit; |
| 74 | int stats_cycles; |
Holger Hans Peter Freyther | 3186892 | 2010-08-03 11:59:04 +0000 | [diff] [blame] | 75 | }; |
Holger Hans Peter Freyther | 98a3877 | 2010-08-03 02:27:21 +0800 | [diff] [blame] | 76 | |
Holger Hans Peter Freyther | cac2438 | 2014-09-01 10:35:55 +0200 | [diff] [blame] | 77 | struct mgcp_rtp_codec { |
| 78 | uint32_t rate; |
| 79 | int channels; |
| 80 | uint32_t frame_duration_num; |
| 81 | uint32_t frame_duration_den; |
| 82 | |
| 83 | int payload_type; |
| 84 | char *audio_name; |
| 85 | char *subtype_name; |
| 86 | }; |
| 87 | |
Holger Hans Peter Freyther | a17d701 | 2010-08-05 01:34:51 +0800 | [diff] [blame] | 88 | struct mgcp_rtp_end { |
| 89 | /* statistics */ |
| 90 | unsigned int packets; |
Holger Hans Peter Freyther | 952f752 | 2012-09-12 11:38:37 +0200 | [diff] [blame] | 91 | unsigned int octets; |
Jacob Erlbeck | 0970bab | 2013-12-19 12:13:32 +0100 | [diff] [blame] | 92 | unsigned int dropped_packets; |
Holger Hans Peter Freyther | a17d701 | 2010-08-05 01:34:51 +0800 | [diff] [blame] | 93 | struct in_addr addr; |
| 94 | |
| 95 | /* in network byte order */ |
| 96 | int rtp_port, rtcp_port; |
| 97 | |
Holger Hans Peter Freyther | cac2438 | 2014-09-01 10:35:55 +0200 | [diff] [blame] | 98 | /* audio codec information */ |
| 99 | struct mgcp_rtp_codec codec; |
Holger Hans Peter Freyther | e46bc27 | 2014-09-01 10:50:22 +0200 | [diff] [blame] | 100 | struct mgcp_rtp_codec alt_codec; /* TODO/XXX: make it generic */ |
Holger Hans Peter Freyther | cac2438 | 2014-09-01 10:35:55 +0200 | [diff] [blame] | 101 | |
Holger Hans Peter Freyther | 5ea1bc7 | 2012-09-03 00:07:39 +0200 | [diff] [blame] | 102 | /* per endpoint data */ |
Jacob Erlbeck | 72c3090 | 2013-11-25 15:23:35 +0100 | [diff] [blame] | 103 | int frames_per_packet; |
Jacob Erlbeck | f6ec0e9 | 2013-12-04 10:30:11 +0100 | [diff] [blame] | 104 | uint32_t packet_duration_ms; |
Holger Hans Peter Freyther | 5ea1bc7 | 2012-09-03 00:07:39 +0200 | [diff] [blame] | 105 | char *fmtp_extra; |
Jacob Erlbeck | 0970bab | 2013-12-19 12:13:32 +0100 | [diff] [blame] | 106 | int output_enabled; |
Jacob Erlbeck | 42a833e | 2014-04-14 10:31:47 +0200 | [diff] [blame] | 107 | int force_output_ptime; |
Holger Hans Peter Freyther | 58ff219 | 2010-08-05 03:08:35 +0800 | [diff] [blame] | 108 | |
Jacob Erlbeck | db2d431 | 2013-12-03 14:43:34 +0100 | [diff] [blame] | 109 | /* RTP patching */ |
Jacob Erlbeck | e2292f3 | 2013-12-03 15:13:12 +0100 | [diff] [blame] | 110 | int force_constant_ssrc; /* -1: always, 0: don't, 1: once */ |
Jacob Erlbeck | 4bbddc6 | 2013-12-18 12:54:51 +0100 | [diff] [blame] | 111 | int force_aligned_timing; |
Jacob Erlbeck | a0d64ce | 2014-03-13 14:24:52 +0100 | [diff] [blame] | 112 | void *rtp_process_data; |
Jacob Erlbeck | db2d431 | 2013-12-03 14:43:34 +0100 | [diff] [blame] | 113 | |
Holger Hans Peter Freyther | c492127 | 2010-08-05 03:37:22 +0800 | [diff] [blame] | 114 | /* |
| 115 | * Each end has a socket... |
| 116 | */ |
Pablo Neira Ayuso | 4db9299 | 2011-05-06 12:11:23 +0200 | [diff] [blame] | 117 | struct osmo_fd rtp; |
| 118 | struct osmo_fd rtcp; |
Holger Hans Peter Freyther | c492127 | 2010-08-05 03:37:22 +0800 | [diff] [blame] | 119 | |
Holger Hans Peter Freyther | 58ff219 | 2010-08-05 03:08:35 +0800 | [diff] [blame] | 120 | int local_port; |
Holger Hans Peter Freyther | f138f91 | 2010-08-05 08:08:17 +0800 | [diff] [blame] | 121 | int local_alloc; |
Holger Hans Peter Freyther | a17d701 | 2010-08-05 01:34:51 +0800 | [diff] [blame] | 122 | }; |
| 123 | |
Holger Hans Peter Freyther | 260d6ed | 2010-08-06 01:12:21 +0800 | [diff] [blame] | 124 | enum { |
| 125 | MGCP_TAP_BTS_IN, |
| 126 | MGCP_TAP_BTS_OUT, |
| 127 | MGCP_TAP_NET_IN, |
| 128 | MGCP_TAP_NET_OUT, |
| 129 | |
| 130 | /* last element */ |
| 131 | MGCP_TAP_COUNT |
| 132 | }; |
| 133 | |
| 134 | struct mgcp_rtp_tap { |
| 135 | int enabled; |
| 136 | struct sockaddr_in forward; |
| 137 | }; |
| 138 | |
Jacob Erlbeck | 2c2ca4d | 2013-12-09 14:32:03 +0100 | [diff] [blame] | 139 | struct mgcp_lco { |
| 140 | char *string; |
Jacob Erlbeck | 452c183 | 2014-05-09 19:42:17 +0200 | [diff] [blame] | 141 | char *codec; |
Jacob Erlbeck | 2c2ca4d | 2013-12-09 14:32:03 +0100 | [diff] [blame] | 142 | int pkt_period_min; /* time in ms */ |
| 143 | int pkt_period_max; /* time in ms */ |
| 144 | }; |
| 145 | |
Pablo Neira Ayuso | 46bd424 | 2013-07-08 05:09:46 +0200 | [diff] [blame] | 146 | enum mgcp_type { |
| 147 | MGCP_RTP_DEFAULT = 0, |
| 148 | MGCP_RTP_TRANSCODED, |
Pablo Neira Ayuso | cab6e75 | 2014-02-05 18:56:17 +0100 | [diff] [blame] | 149 | MGCP_OSMUX_BSC, |
| 150 | MGCP_OSMUX_BSC_NAT, |
Pablo Neira Ayuso | 46bd424 | 2013-07-08 05:09:46 +0200 | [diff] [blame] | 151 | }; |
| 152 | |
Pablo Neira Ayuso | cab6e75 | 2014-02-05 18:56:17 +0100 | [diff] [blame] | 153 | #include <openbsc/osmux.h> |
| 154 | |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 155 | struct mgcp_endpoint { |
Holger Hans Peter Freyther | 39a97e2 | 2010-08-06 18:03:11 +0800 | [diff] [blame] | 156 | int allocated; |
Holger Hans Peter Freyther | 4634013 | 2010-08-06 08:26:54 +0800 | [diff] [blame] | 157 | uint32_t ci; |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 158 | char *callid; |
Jacob Erlbeck | 2c2ca4d | 2013-12-09 14:32:03 +0100 | [diff] [blame] | 159 | struct mgcp_lco local_options; |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 160 | int conn_mode; |
Holger Hans Peter Freyther | c597a4e | 2010-08-03 02:57:02 +0800 | [diff] [blame] | 161 | int orig_mode; |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 162 | |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 163 | /* backpointer */ |
| 164 | struct mgcp_config *cfg; |
Holger Hans Peter Freyther | 88ad772 | 2011-02-28 00:56:17 +0100 | [diff] [blame] | 165 | struct mgcp_trunk_config *tcfg; |
Holger Hans Peter Freyther | b4b135e | 2010-04-07 09:37:17 +0200 | [diff] [blame] | 166 | |
Holger Hans Peter Freyther | a17d701 | 2010-08-05 01:34:51 +0800 | [diff] [blame] | 167 | /* port status for bts/net */ |
| 168 | struct mgcp_rtp_end bts_end; |
| 169 | struct mgcp_rtp_end net_end; |
Holger Hans Peter Freyther | 2126233 | 2010-11-01 20:53:31 +0100 | [diff] [blame] | 170 | |
Holger Hans Peter Freyther | bd7b3c5 | 2010-11-01 21:04:54 +0100 | [diff] [blame] | 171 | /* |
| 172 | * For transcoding we will send from the local_port |
| 173 | * of trans_bts and it will arrive at trans_net from |
| 174 | * where we will forward it to the network. |
| 175 | */ |
| 176 | struct mgcp_rtp_end trans_bts; |
Holger Hans Peter Freyther | 2126233 | 2010-11-01 20:53:31 +0100 | [diff] [blame] | 177 | struct mgcp_rtp_end trans_net; |
Pablo Neira Ayuso | 46bd424 | 2013-07-08 05:09:46 +0200 | [diff] [blame] | 178 | enum mgcp_type type; |
Holger Hans Peter Freyther | 380b871 | 2010-07-29 02:38:39 +0800 | [diff] [blame] | 179 | |
| 180 | /* sequence bits */ |
Holger Hans Peter Freyther | 3186892 | 2010-08-03 11:59:04 +0000 | [diff] [blame] | 181 | struct mgcp_rtp_state net_state; |
| 182 | struct mgcp_rtp_state bts_state; |
Holger Hans Peter Freyther | 6357a8e | 2010-08-05 12:07:00 +0000 | [diff] [blame] | 183 | |
Holger Hans Peter Freyther | ce55361 | 2012-12-07 15:04:07 +0100 | [diff] [blame] | 184 | /* fields for re-transmission */ |
| 185 | char *last_trans; |
| 186 | char *last_response; |
| 187 | |
Holger Hans Peter Freyther | 260d6ed | 2010-08-06 01:12:21 +0800 | [diff] [blame] | 188 | /* tap for the endpoint */ |
| 189 | struct mgcp_rtp_tap taps[MGCP_TAP_COUNT]; |
Pablo Neira Ayuso | cab6e75 | 2014-02-05 18:56:17 +0100 | [diff] [blame] | 190 | |
Pablo Neira Ayuso | 63650bb | 2014-08-26 13:31:53 +0200 | [diff] [blame] | 191 | struct { |
Pablo Neira Ayuso | b769f3c | 2014-08-27 17:02:52 +0200 | [diff] [blame] | 192 | /* Osmux state: disabled, activating, active */ |
| 193 | enum osmux_state state; |
| 194 | /* Allocated Osmux circuit ID for this endpoint */ |
Holger Hans Peter Freyther | 1afe7c7 | 2015-10-04 11:11:11 +0200 | [diff] [blame] | 195 | int allocated_cid; |
| 196 | /* Used Osmux circuit ID for this endpoint */ |
Pablo Neira Ayuso | b769f3c | 2014-08-27 17:02:52 +0200 | [diff] [blame] | 197 | uint8_t cid; |
| 198 | /* handle to batch messages */ |
| 199 | struct osmux_in_handle *in; |
Pablo Neira Ayuso | 63650bb | 2014-08-26 13:31:53 +0200 | [diff] [blame] | 200 | /* handle to unbatch messages */ |
| 201 | struct osmux_out_handle out; |
Pablo Neira Ayuso | ee11bc0 | 2014-09-17 12:33:09 +0200 | [diff] [blame] | 202 | /* statistics */ |
| 203 | struct { |
| 204 | uint32_t chunks; |
| 205 | uint32_t octets; |
| 206 | } stats; |
Pablo Neira Ayuso | 63650bb | 2014-08-26 13:31:53 +0200 | [diff] [blame] | 207 | } osmux; |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 208 | }; |
| 209 | |
Holger Hans Peter Freyther | a611da8 | 2015-08-14 09:24:11 +0200 | [diff] [blame] | 210 | #define for_each_line(line, save) \ |
| 211 | for (line = strline_r(NULL, &save); line;\ |
| 212 | line = strline_r(NULL, &save)) |
| 213 | |
| 214 | static inline char *strline_r(char *str, char **saveptr) |
| 215 | { |
| 216 | char *result; |
| 217 | |
| 218 | if (str) |
| 219 | *saveptr = str; |
| 220 | |
| 221 | result = *saveptr; |
| 222 | |
| 223 | if (*saveptr != NULL) { |
| 224 | *saveptr = strpbrk(*saveptr, "\r\n"); |
| 225 | |
| 226 | if (*saveptr != NULL) { |
| 227 | char *eos = *saveptr; |
| 228 | |
| 229 | if ((*saveptr)[0] == '\r' && (*saveptr)[1] == '\n') |
| 230 | (*saveptr)++; |
| 231 | (*saveptr)++; |
| 232 | if ((*saveptr)[0] == '\0') |
| 233 | *saveptr = NULL; |
| 234 | |
| 235 | *eos = '\0'; |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | return result; |
| 240 | } |
| 241 | |
| 242 | |
| 243 | |
Holger Hans Peter Freyther | 3815942 | 2015-05-02 10:02:38 +0200 | [diff] [blame] | 244 | #define ENDPOINT_NUMBER(endp) abs((int)(endp - endp->tcfg->endpoints)) |
Holger Hans Peter Freyther | 7bdc637 | 2010-02-20 21:21:02 +0100 | [diff] [blame] | 245 | |
Holger Hans Peter Freyther | a611da8 | 2015-08-14 09:24:11 +0200 | [diff] [blame] | 246 | /** |
| 247 | * Internal structure while parsing a request |
| 248 | */ |
| 249 | struct mgcp_parse_data { |
| 250 | struct mgcp_config *cfg; |
| 251 | struct mgcp_endpoint *endp; |
| 252 | char *trans; |
| 253 | char *save; |
| 254 | int found; |
Holger Hans Peter Freyther | f2f1591 | 2010-04-01 03:27:04 +0200 | [diff] [blame] | 255 | }; |
| 256 | |
Holger Hans Peter Freyther | b844b87 | 2010-04-21 21:25:13 +0800 | [diff] [blame] | 257 | int mgcp_send_dummy(struct mgcp_endpoint *endp); |
Holger Hans Peter Freyther | bb89aa1 | 2010-08-05 03:29:33 +0800 | [diff] [blame] | 258 | int mgcp_bind_bts_rtp_port(struct mgcp_endpoint *endp, int rtp_port); |
Holger Hans Peter Freyther | 314584a | 2010-08-05 04:10:21 +0800 | [diff] [blame] | 259 | int mgcp_bind_net_rtp_port(struct mgcp_endpoint *endp, int rtp_port); |
Holger Hans Peter Freyther | bd7b3c5 | 2010-11-01 21:04:54 +0100 | [diff] [blame] | 260 | int mgcp_bind_trans_bts_rtp_port(struct mgcp_endpoint *enp, int rtp_port); |
| 261 | int mgcp_bind_trans_net_rtp_port(struct mgcp_endpoint *enp, int rtp_port); |
Holger Hans Peter Freyther | f138f91 | 2010-08-05 08:08:17 +0800 | [diff] [blame] | 262 | int mgcp_free_rtp_port(struct mgcp_rtp_end *end); |
Holger Hans Peter Freyther | f2f1591 | 2010-04-01 03:27:04 +0200 | [diff] [blame] | 263 | |
Holger Hans Peter Freyther | bd7b3c5 | 2010-11-01 21:04:54 +0100 | [diff] [blame] | 264 | /* For transcoding we need to manage an in and an output that are connected */ |
| 265 | static inline int endp_back_channel(int endpoint) |
| 266 | { |
| 267 | return endpoint + 60; |
| 268 | } |
| 269 | |
Holger Hans Peter Freyther | 0e939fe | 2011-02-28 12:11:02 +0100 | [diff] [blame] | 270 | struct mgcp_trunk_config *mgcp_trunk_alloc(struct mgcp_config *cfg, int index); |
| 271 | struct mgcp_trunk_config *mgcp_trunk_num(struct mgcp_config *cfg, int index); |
| 272 | |
Jacob Erlbeck | db2d431 | 2013-12-03 14:43:34 +0100 | [diff] [blame] | 273 | void mgcp_rtp_end_config(struct mgcp_endpoint *endp, int expect_ssrc_change, |
| 274 | struct mgcp_rtp_end *rtp); |
Jacob Erlbeck | f6ec0e9 | 2013-12-04 10:30:11 +0100 | [diff] [blame] | 275 | uint32_t mgcp_rtp_packet_duration(struct mgcp_endpoint *endp, |
| 276 | struct mgcp_rtp_end *rtp); |
Jacob Erlbeck | db2d431 | 2013-12-03 14:43:34 +0100 | [diff] [blame] | 277 | |
Holger Hans Peter Freyther | 38e02c5 | 2012-10-22 18:09:35 +0200 | [diff] [blame] | 278 | void mgcp_state_calc_loss(struct mgcp_rtp_state *s, struct mgcp_rtp_end *, |
| 279 | uint32_t *expected, int *loss); |
Holger Hans Peter Freyther | cb306a6 | 2012-10-24 21:22:47 +0200 | [diff] [blame] | 280 | uint32_t mgcp_state_calc_jitter(struct mgcp_rtp_state *); |
Holger Hans Peter Freyther | 38e02c5 | 2012-10-22 18:09:35 +0200 | [diff] [blame] | 281 | |
Jacob Erlbeck | a0d64ce | 2014-03-13 14:24:52 +0100 | [diff] [blame] | 282 | /* payload processing default functions */ |
Jacob Erlbeck | 42a833e | 2014-04-14 10:31:47 +0200 | [diff] [blame] | 283 | int mgcp_rtp_processing_default(struct mgcp_endpoint *endp, struct mgcp_rtp_end *dst_end, |
Jacob Erlbeck | a0d64ce | 2014-03-13 14:24:52 +0100 | [diff] [blame] | 284 | char *data, int *len, int buf_size); |
| 285 | |
| 286 | int mgcp_setup_rtp_processing_default(struct mgcp_endpoint *endp, |
| 287 | struct mgcp_rtp_end *dst_end, |
| 288 | struct mgcp_rtp_end *src_end); |
| 289 | |
Jacob Erlbeck | 168ca00 | 2014-03-17 12:40:07 +0100 | [diff] [blame] | 290 | void mgcp_get_net_downlink_format_default(struct mgcp_endpoint *endp, |
| 291 | int *payload_type, |
| 292 | const char**subtype_name, |
| 293 | const char**fmtp_extra); |
| 294 | |
Holger Hans Peter Freyther | 05d481a | 2014-10-06 21:01:26 +0200 | [diff] [blame] | 295 | /* internal RTP Annex A counting */ |
| 296 | void mgcp_rtp_annex_count(struct mgcp_endpoint *endp, struct mgcp_rtp_state *state, |
| 297 | const uint16_t seq, const int32_t transit, |
| 298 | const uint32_t ssrc); |
| 299 | |
Holger Hans Peter Freyther | 9be675e | 2015-01-21 11:39:47 +0100 | [diff] [blame] | 300 | int mgcp_set_ip_tos(int fd, int tos); |
| 301 | |
Pablo Neira Ayuso | cab6e75 | 2014-02-05 18:56:17 +0100 | [diff] [blame] | 302 | enum { |
| 303 | MGCP_DEST_NET = 0, |
| 304 | MGCP_DEST_BTS, |
| 305 | }; |
| 306 | |
Holger Hans Peter Freyther | a611da8 | 2015-08-14 09:24:11 +0200 | [diff] [blame] | 307 | |
Pablo Neira Ayuso | cab6e75 | 2014-02-05 18:56:17 +0100 | [diff] [blame] | 308 | #define MGCP_DUMMY_LOAD 0x23 |
Holger Hans Peter Freyther | bd7b3c5 | 2010-11-01 21:04:54 +0100 | [diff] [blame] | 309 | |
Holger Hans Peter Freyther | a611da8 | 2015-08-14 09:24:11 +0200 | [diff] [blame] | 310 | |
| 311 | /** |
| 312 | * SDP related information |
| 313 | */ |
| 314 | /* Assume audio frame length of 20ms */ |
| 315 | #define DEFAULT_RTP_AUDIO_FRAME_DUR_NUM 20 |
| 316 | #define DEFAULT_RTP_AUDIO_FRAME_DUR_DEN 1000 |
| 317 | #define DEFAULT_RTP_AUDIO_PACKET_DURATION_MS 20 |
| 318 | #define DEFAULT_RTP_AUDIO_DEFAULT_RATE 8000 |
| 319 | #define DEFAULT_RTP_AUDIO_DEFAULT_CHANNELS 1 |
| 320 | |
| 321 | #define PTYPE_UNDEFINED (-1) |
Holger Hans Peter Freyther | aeadf26 | 2015-08-14 15:43:06 +0200 | [diff] [blame] | 322 | int mgcp_parse_sdp_data(struct mgcp_endpoint *endp, struct mgcp_rtp_end *rtp, struct mgcp_parse_data *p); |
Holger Hans Peter Freyther | a611da8 | 2015-08-14 09:24:11 +0200 | [diff] [blame] | 323 | int mgcp_set_audio_info(void *ctx, struct mgcp_rtp_codec *codec, |
| 324 | int payload_type, const char *audio_name); |
Holger Hans Peter Freyther | e6ed009 | 2015-08-20 14:58:19 +0200 | [diff] [blame] | 325 | |
| 326 | |
| 327 | /** |
| 328 | * Internal network related |
| 329 | */ |
| 330 | static inline const char *mgcp_net_src_addr(struct mgcp_endpoint *endp) |
| 331 | { |
Holger Hans Peter Freyther | f3316e3 | 2015-10-12 09:37:35 +0200 | [diff] [blame] | 332 | if (endp->cfg->net_ports.bind_addr) |
| 333 | return endp->cfg->net_ports.bind_addr; |
Holger Hans Peter Freyther | e6ed009 | 2015-08-20 14:58:19 +0200 | [diff] [blame] | 334 | return endp->cfg->source_addr; |
| 335 | } |
| 336 | |
| 337 | static inline const char *mgcp_bts_src_addr(struct mgcp_endpoint *endp) |
| 338 | { |
Holger Hans Peter Freyther | f3316e3 | 2015-10-12 09:37:35 +0200 | [diff] [blame] | 339 | if (endp->cfg->bts_ports.bind_addr) |
| 340 | return endp->cfg->bts_ports.bind_addr; |
Holger Hans Peter Freyther | e6ed009 | 2015-08-20 14:58:19 +0200 | [diff] [blame] | 341 | return endp->cfg->source_addr; |
| 342 | } |