Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 1 | module MGCP_Templates { |
| 2 | |
Harald Welte | 35bb716 | 2018-01-03 21:07:52 +0100 | [diff] [blame] | 3 | /* MGCP Templates, building on top of MGCP_Types (Osmocom) and SDP_Types from Ericsson. |
| 4 | * |
| 5 | * (C) 2017 by Harald Welte <laforge@gnumonks.org> |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Released under the terms of GNU General Public License, Version 2 or |
| 9 | * (at your option) any later version. |
| 10 | */ |
| 11 | |
| 12 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 13 | import from MGCP_Types all; |
| 14 | import from SDP_Types all; |
| 15 | |
| 16 | function f_mgcp_par_append(inout template MgcpParameterList list, template MgcpParameter par) { |
| 17 | var integer len := lengthof(list); |
| 18 | list[len] := par; |
| 19 | } |
| 20 | |
| 21 | /* 3.2.2.6 Connection Mode (sendonly, recvonly, sendrecv, confrnce, inactive, loopback, |
| 22 | * conttest, netwloop, netwtest) */ |
| 23 | template MgcpParameter t_MgcpParConnMode(template MgcpConnectionMode mode) := { "M", mode }; |
| 24 | |
| 25 | /* 3.2.2.2 CallId: maximum 32 hex chars */ |
| 26 | template MgcpParameter ts_MgcpParCallId(MgcpCallId cid) := { |
| 27 | code := "C", |
| 28 | val := hex2str(cid) |
| 29 | }; |
| 30 | |
| 31 | /* 3.2.2.18 RequestIdentifier: Maximum 32 hex chars */ |
| 32 | template MgcpParameter ts_MgcpParReqId(MgcpRequestId rid) := { |
| 33 | code := "X", |
| 34 | val := hex2str(rid) |
| 35 | }; |
| 36 | |
Harald Welte | 363cb0a | 2018-01-30 19:35:53 +0100 | [diff] [blame] | 37 | /* 3.2.1.3 SpecificEndpointId */ |
| 38 | template MgcpParameter ts_MgcpParSpecEP(MgcpEndpoint ep) := { |
| 39 | code := "Z", |
| 40 | val := ep |
| 41 | }; |
| 42 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 43 | /* 3.2.2.10: LocalConnectionOptions (codec, packetization, bandwidth, ToS, eco, gain, silence, ...) */ |
| 44 | template MgcpParameter t_MgcpParLocConnOpt(template charstring lco) := { "L", lco }; |
| 45 | |
| 46 | /* 3.2.2.5: ConnectionId: maximum 32 hex chars */ |
| 47 | template MgcpParameter ts_MgcpParConnectionId(MgcpConnectionId cid) := { |
| 48 | code := "I", |
| 49 | val := hex2str(cid) |
| 50 | }; |
| 51 | |
Pau Espin Pedrol | b2c6b38 | 2019-05-14 13:40:49 +0200 | [diff] [blame] | 52 | /* Osmocom extension: X-Osmux: {*,%u} */ |
| 53 | template MgcpParameter ts_MgcpParOsmuxCID(MgcpOsmuxCID osmux_cid) := { |
| 54 | code := "X-OSMUX", |
| 55 | val := f_mgcp_osmux_cid_encode(osmux_cid) |
| 56 | }; |
| 57 | |
Pau Espin Pedrol | befd3aa | 2020-09-21 10:54:42 +0200 | [diff] [blame] | 58 | /* Osmocom extension: X-Osmux: {*,%u} */ |
| 59 | template MgcpParameter t_MgcpParOsmoIGN(template charstring val) := { |
| 60 | code := "X-OSMO-IGN", |
| 61 | val := val |
| 62 | }; |
| 63 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 64 | /* osmo-bsc_mgcp implements L/C/M/X only, osmo-mgw adds 'I' */ |
| 65 | /* SDP: osmo-bsc_mgcp implements Tx of v,o,s,c,t,m,a */ |
| 66 | |
Vadim Yanitskiy | 87ebd0b | 2022-06-28 03:58:33 +0700 | [diff] [blame] | 67 | template (value) MgcpResponse |
| 68 | ts_MgcpResp_Err(template (value) MgcpTransId trans_id, |
| 69 | template (value) MgcpResponseCode code, |
| 70 | template (value) charstring string := "FAIL") := { |
| 71 | line := { |
| 72 | code := code, |
| 73 | trans_id := trans_id, |
| 74 | string := string |
| 75 | }, |
| 76 | params := {}, |
| 77 | sdp := omit |
| 78 | } |
| 79 | template MgcpResponse |
| 80 | tr_MgcpResp_Err(template (present) MgcpResponseCode code) := { |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 81 | line := { |
| 82 | code := code, |
| 83 | trans_id := ?, |
| 84 | string := ? |
| 85 | }, |
| 86 | params := {}, |
| 87 | sdp := omit |
| 88 | } |
| 89 | |
| 90 | template MgcpCommandLine t_MgcpCmdLine(template charstring verb, template MgcpTransId trans_id, template charstring ep) := { |
| 91 | verb := verb, |
| 92 | trans_id := trans_id, |
| 93 | ep := ep, |
| 94 | ver := "1.0" |
| 95 | }; |
| 96 | |
Pau Espin Pedrol | b26d446 | 2023-06-15 11:38:02 +0200 | [diff] [blame] | 97 | template MgcpCommand ts_AUEP(MgcpTransId trans_id, charstring ep) := { |
| 98 | line := t_MgcpCmdLine("AUEP", trans_id, ep), |
| 99 | params := omit, |
| 100 | sdp := omit |
| 101 | } |
| 102 | |
| 103 | template MgcpResponse tr_AUEP_ACK := { |
| 104 | line := { |
| 105 | code := "200", |
| 106 | trans_id := ?, |
| 107 | string := "OK" |
| 108 | }, |
| 109 | params:= *, |
| 110 | sdp := omit |
| 111 | } |
| 112 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 113 | template MgcpCommand ts_CRCX(MgcpTransId trans_id, charstring ep, MgcpConnectionMode mode, MgcpCallId call_id, template SDP_Message sdp := omit) := { |
| 114 | line := t_MgcpCmdLine("CRCX", trans_id, ep), |
| 115 | params := { |
| 116 | t_MgcpParConnMode(mode), |
| 117 | ts_MgcpParCallId(call_id), |
| 118 | //t_MgcpParReqId(omit), |
Daniel Willmann | fbef714 | 2017-11-30 13:16:14 +0100 | [diff] [blame] | 119 | t_MgcpParLocConnOpt("p:20, a:AMR") |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 120 | }, |
| 121 | sdp := sdp |
| 122 | } |
| 123 | |
Philipp Maier | 45635f4 | 2018-06-05 17:28:02 +0200 | [diff] [blame] | 124 | template MgcpCommand ts_CRCX_no_lco(MgcpTransId trans_id, charstring ep, MgcpConnectionMode mode, MgcpCallId call_id, template SDP_Message sdp := omit) := { |
| 125 | line := t_MgcpCmdLine("CRCX", trans_id, ep), |
| 126 | params := { |
| 127 | t_MgcpParConnMode(mode), |
| 128 | ts_MgcpParCallId(call_id) |
| 129 | }, |
| 130 | sdp := sdp |
| 131 | } |
| 132 | |
Pau Espin Pedrol | b2c6b38 | 2019-05-14 13:40:49 +0200 | [diff] [blame] | 133 | template MgcpCommand ts_CRCX_osmux(MgcpTransId trans_id, charstring ep, MgcpConnectionMode mode, MgcpCallId call_id, MgcpOsmuxCID osmux_cid, template SDP_Message sdp := omit) := { |
| 134 | line := t_MgcpCmdLine("CRCX", trans_id, ep), |
| 135 | params := { |
| 136 | t_MgcpParConnMode(mode), |
| 137 | ts_MgcpParCallId(call_id), |
| 138 | //t_MgcpParReqId(omit), |
| 139 | t_MgcpParLocConnOpt("p:20, a:AMR"), |
| 140 | ts_MgcpParOsmuxCID(osmux_cid) |
| 141 | }, |
| 142 | sdp := sdp |
| 143 | } |
| 144 | |
Daniel Willmann | fdb4868 | 2022-02-08 16:22:59 +0100 | [diff] [blame] | 145 | template MgcpCommand tr_CRCX(template MgcpEndpoint ep := ?, template SDP_Message sdp := *) := { |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 146 | line := t_MgcpCmdLine("CRCX", ?, ep), |
Harald Welte | 9002957 | 2017-11-24 23:39:50 +0100 | [diff] [blame] | 147 | params := *, |
Daniel Willmann | fdb4868 | 2022-02-08 16:22:59 +0100 | [diff] [blame] | 148 | sdp := sdp |
Harald Welte | 9002957 | 2017-11-24 23:39:50 +0100 | [diff] [blame] | 149 | } |
| 150 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 151 | template MgcpResponse tr_CRCX_ACK := { |
| 152 | line := { |
| 153 | code := "200", |
Harald Welte | 51f34ad | 2017-11-24 20:40:43 +0100 | [diff] [blame] | 154 | trans_id := ?, |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 155 | string := "OK" |
| 156 | }, |
| 157 | params:= { { "I", ? }, *}, |
| 158 | sdp := ? |
| 159 | } |
| 160 | |
Pau Espin Pedrol | b2c6b38 | 2019-05-14 13:40:49 +0200 | [diff] [blame] | 161 | template MgcpResponse tr_CRCX_ACK_osmux := { |
| 162 | line := { |
| 163 | code := "200", |
| 164 | trans_id := ?, |
| 165 | string := "OK" |
| 166 | }, |
| 167 | params:= { { "I", ? }, {"X-OSMUX", ?}, *}, |
| 168 | sdp := ? |
| 169 | } |
| 170 | |
Harald Welte | 9002957 | 2017-11-24 23:39:50 +0100 | [diff] [blame] | 171 | template MgcpResponse ts_CRCX_ACK(MgcpTransId trans_id, MgcpConnectionId conn_id, template SDP_Message sdp := omit) := { |
| 172 | line := { |
| 173 | code := "200", |
| 174 | trans_id := trans_id, |
| 175 | string := "OK" |
| 176 | }, |
| 177 | params:= { ts_MgcpParConnectionId(conn_id) }, |
| 178 | sdp := sdp |
| 179 | } |
| 180 | |
Pau Espin Pedrol | c6a53db | 2019-05-20 19:31:47 +0200 | [diff] [blame] | 181 | template MgcpResponse ts_CRCX_ACK_osmux(MgcpTransId trans_id, MgcpConnectionId conn_id, MgcpOsmuxCID osmux_cid, template SDP_Message sdp := omit) := { |
| 182 | line := { |
| 183 | code := "200", |
| 184 | trans_id := trans_id, |
| 185 | string := "OK" |
| 186 | }, |
| 187 | params:= { |
| 188 | ts_MgcpParConnectionId(conn_id), |
| 189 | ts_MgcpParOsmuxCID(osmux_cid) |
| 190 | }, |
| 191 | sdp := sdp |
| 192 | } |
| 193 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 194 | template MgcpCommand ts_MDCX(MgcpTransId trans_id, charstring ep, MgcpConnectionMode mode, MgcpCallId call_id, MgcpConnectionId conn_id, template SDP_Message sdp := omit) := { |
| 195 | line := t_MgcpCmdLine("MDCX", trans_id, ep), |
| 196 | params := { |
| 197 | t_MgcpParConnMode(mode), |
| 198 | ts_MgcpParCallId(call_id), |
| 199 | ts_MgcpParConnectionId(conn_id), |
| 200 | //t_MgcpParReqId(omit), |
Daniel Willmann | fbef714 | 2017-11-30 13:16:14 +0100 | [diff] [blame] | 201 | t_MgcpParLocConnOpt("p:20, a:AMR") |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 202 | }, |
| 203 | sdp := sdp |
| 204 | } |
| 205 | |
Pau Espin Pedrol | b2c6b38 | 2019-05-14 13:40:49 +0200 | [diff] [blame] | 206 | template MgcpCommand ts_MDCX_osmux(MgcpTransId trans_id, charstring ep, MgcpConnectionMode mode, MgcpCallId call_id, MgcpConnectionId conn_id, MgcpOsmuxCID osmux_cid, template SDP_Message sdp := omit) := { |
| 207 | line := t_MgcpCmdLine("MDCX", trans_id, ep), |
| 208 | params := { |
| 209 | t_MgcpParConnMode(mode), |
| 210 | ts_MgcpParCallId(call_id), |
| 211 | ts_MgcpParConnectionId(conn_id), |
| 212 | //t_MgcpParReqId(omit), |
| 213 | t_MgcpParLocConnOpt("p:20, a:AMR"), |
| 214 | ts_MgcpParOsmuxCID(osmux_cid) |
| 215 | }, |
| 216 | sdp := sdp |
| 217 | } |
| 218 | |
Daniel Willmann | fdb4868 | 2022-02-08 16:22:59 +0100 | [diff] [blame] | 219 | template MgcpCommand tr_MDCX(template SDP_Message sdp := *) := { |
Harald Welte | 9002957 | 2017-11-24 23:39:50 +0100 | [diff] [blame] | 220 | line := t_MgcpCmdLine("MDCX", ?, ?), |
| 221 | params := *, |
Daniel Willmann | fdb4868 | 2022-02-08 16:22:59 +0100 | [diff] [blame] | 222 | sdp := sdp |
Harald Welte | 9002957 | 2017-11-24 23:39:50 +0100 | [diff] [blame] | 223 | } |
| 224 | |
Harald Welte | bb7523b | 2018-03-29 08:52:01 +0200 | [diff] [blame] | 225 | template MgcpResponse tr_MDCX_ACK := { |
| 226 | line := { |
| 227 | code := "200", |
| 228 | trans_id := ?, |
| 229 | string := "OK" |
| 230 | }, |
| 231 | params := *, |
| 232 | sdp := ? |
| 233 | } |
| 234 | |
Harald Welte | 9002957 | 2017-11-24 23:39:50 +0100 | [diff] [blame] | 235 | template MgcpResponse ts_MDCX_ACK(MgcpTransId trans_id, MgcpConnectionId conn_id, template SDP_Message sdp := omit) := ts_CRCX_ACK(trans_id, conn_id, sdp); |
Pau Espin Pedrol | a65697d | 2019-05-21 12:54:39 +0200 | [diff] [blame] | 236 | template MgcpResponse ts_MDCX_ACK_osmux(MgcpTransId trans_id, MgcpConnectionId conn_id, MgcpOsmuxCID osmux_cid, template SDP_Message sdp := omit) := ts_CRCX_ACK_osmux(trans_id, conn_id, osmux_cid, sdp); |
Harald Welte | 9002957 | 2017-11-24 23:39:50 +0100 | [diff] [blame] | 237 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 238 | /* have a function that generates a template, rather than a template in order to handle |
| 239 | * optional parameters */ |
| 240 | function ts_DLCX(MgcpTransId trans_id, charstring ep, template MgcpCallId call_id := omit, |
| 241 | template MgcpConnectionId conn_id := omit) return template MgcpCommand { |
| 242 | var template MgcpCommand cmd; |
| 243 | cmd.line := t_MgcpCmdLine("DLCX", trans_id, ep); |
| 244 | cmd.params := {}; |
| 245 | cmd.sdp := omit; |
| 246 | if (isvalue(call_id)) { |
| 247 | f_mgcp_par_append(cmd.params, ts_MgcpParCallId(valueof(call_id))); |
| 248 | if (isvalue(conn_id)) { |
| 249 | f_mgcp_par_append(cmd.params, ts_MgcpParConnectionId(valueof(conn_id))); |
| 250 | } |
| 251 | } |
| 252 | return cmd; |
| 253 | } |
| 254 | |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 255 | template MgcpCommand tr_DLCX(template MgcpEndpoint ep := ?) := { |
| 256 | line := t_MgcpCmdLine("DLCX", ?, ep), |
Harald Welte | 9002957 | 2017-11-24 23:39:50 +0100 | [diff] [blame] | 257 | params := *, |
| 258 | sdp := * |
| 259 | } |
| 260 | |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 261 | template MgcpResponse tr_DLCX_ACK := { |
| 262 | line := { |
Daniel Willmann | 961e5c9 | 2017-11-30 16:37:40 +0100 | [diff] [blame] | 263 | code := ("200", "250"), |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 264 | trans_id := ?, |
| 265 | string := "OK" |
| 266 | }, |
| 267 | params:= *, |
| 268 | sdp := * |
| 269 | } |
| 270 | |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 271 | template MgcpResponse ts_DLCX_ACK2(MgcpTransId trans_id) := { |
| 272 | line := { |
| 273 | code := "250", |
| 274 | trans_id := trans_id, |
| 275 | string := "OK" |
| 276 | }, |
| 277 | params:= { /* list of ConnectionIDs */ }, |
| 278 | sdp := omit |
| 279 | } |
| 280 | |
| 281 | |
| 282 | |
Harald Welte | 9002957 | 2017-11-24 23:39:50 +0100 | [diff] [blame] | 283 | template MgcpResponse ts_DLCX_ACK(MgcpTransId trans_id, MgcpConnectionId conn_id, template SDP_Message sdp := omit) := ts_CRCX_ACK(trans_id, conn_id, sdp); |
| 284 | |
Harald Welte | e98bb2e | 2017-11-29 12:09:48 +0100 | [diff] [blame] | 285 | template MgcpCommand tr_RSIP := { |
| 286 | line := t_MgcpCmdLine("RSIP", ?, ?), |
| 287 | params := *, |
| 288 | sdp := * |
| 289 | } |
| 290 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 291 | /* SDP Templates */ |
| 292 | template SDP_Origin ts_SDP_origin(charstring addr, charstring session_id, |
| 293 | charstring session_version := "1", |
| 294 | charstring addr_type := "IP4", |
| 295 | charstring user_name := "-") := { |
| 296 | user_name := user_name, |
| 297 | session_id := session_id, |
| 298 | session_version := session_version, |
| 299 | net_type := "IN", |
| 300 | addr_type := addr_type, |
| 301 | addr := addr |
| 302 | } |
| 303 | |
| 304 | template SDP_connection ts_SDP_connection_IP(charstring addr, charstring addr_type := "IP4", |
| 305 | template integer ttl := omit, |
| 306 | template integer num_of_addr := omit) :={ |
| 307 | net_type := "IN", |
| 308 | addr_type := addr_type, |
| 309 | conn_addr := { |
| 310 | addr := addr, |
| 311 | ttl := ttl, |
| 312 | num_of_addr := num_of_addr |
| 313 | } |
| 314 | } |
| 315 | |
Daniel Willmann | fdb4868 | 2022-02-08 16:22:59 +0100 | [diff] [blame] | 316 | template SDP_connection tr_SDP_connection_IP(template charstring addr, template charstring addr_type := ?, |
| 317 | template integer ttl := *, |
| 318 | template integer num_of_addr := *) := { |
| 319 | net_type := "IN", |
| 320 | addr_type := addr_type, |
| 321 | conn_addr := { |
| 322 | addr := addr, |
| 323 | ttl := ttl, |
| 324 | num_of_addr := num_of_addr |
| 325 | } |
| 326 | } |
| 327 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 328 | template SDP_time ts_SDP_time(charstring beg, charstring end) := { |
| 329 | time_field := { |
| 330 | start_time := beg, |
| 331 | stop_time := end |
| 332 | }, |
| 333 | time_repeat := omit |
| 334 | } |
| 335 | |
| 336 | template SDP_media_desc ts_SDP_media_desc(integer port_number, SDP_fmt_list fmts, |
| 337 | SDP_attribute_list attributes) := { |
| 338 | media_field := { |
| 339 | media := "audio", |
| 340 | ports := { |
| 341 | port_number := port_number, |
| 342 | num_of_ports := omit |
| 343 | }, |
| 344 | transport := "RTP/AVP", |
| 345 | fmts := fmts |
| 346 | }, |
| 347 | information := omit, |
| 348 | connections := omit, |
| 349 | bandwidth := omit, |
| 350 | key := omit, |
| 351 | attributes := attributes |
| 352 | } |
| 353 | |
Daniel Willmann | fdb4868 | 2022-02-08 16:22:59 +0100 | [diff] [blame] | 354 | template SDP_media_desc tr_SDP_media_desc(template integer port_number := ?, |
| 355 | template SDP_fmt_list fmts := ?, |
| 356 | template SDP_attribute_list attributes := ?) := { |
| 357 | media_field := { |
| 358 | media := "audio", |
| 359 | ports := { |
| 360 | port_number := port_number, |
| 361 | num_of_ports := omit |
| 362 | }, |
| 363 | transport := "RTP/AVP", |
| 364 | fmts := fmts |
| 365 | }, |
| 366 | information := *, |
| 367 | connections := *, |
| 368 | bandwidth := *, |
| 369 | key := *, |
| 370 | attributes := attributes |
| 371 | } |
| 372 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 373 | /* master template for generating SDP based in template arguments */ |
| 374 | template SDP_Message ts_SDP(charstring local_addr, charstring remote_addr, |
| 375 | charstring session_id, charstring session_version, |
| 376 | integer rtp_port, SDP_fmt_list fmts, |
| 377 | SDP_attribute_list attributes) := { |
| 378 | protocol_version := 0, |
Pau Espin Pedrol | 384e949 | 2020-09-03 17:05:19 +0200 | [diff] [blame] | 379 | origin := ts_SDP_origin(local_addr, session_id, session_version, f_mgcp_addr2addrtype(local_addr)), |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 380 | session_name := "-", |
| 381 | information := omit, |
| 382 | uri := omit, |
| 383 | emails := omit, |
| 384 | phone_numbers := omit, |
Pau Espin Pedrol | 384e949 | 2020-09-03 17:05:19 +0200 | [diff] [blame] | 385 | connection := ts_SDP_connection_IP(remote_addr, f_mgcp_addr2addrtype(remote_addr)), |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 386 | bandwidth := omit, |
| 387 | times := { ts_SDP_time("0","0") }, |
| 388 | timezone_adjustments := omit, |
| 389 | key := omit, |
| 390 | attributes := omit, |
| 391 | media_list := { ts_SDP_media_desc(rtp_port, fmts, attributes) } |
| 392 | } |
| 393 | |
Daniel Willmann | fdb4868 | 2022-02-08 16:22:59 +0100 | [diff] [blame] | 394 | template SDP_Message tr_SDP(template charstring remote_addr := ?, template integer rtp_port := ?) := { |
| 395 | protocol_version := 0, |
| 396 | origin := ?, |
| 397 | session_name := ?, |
| 398 | information := *, |
| 399 | uri := *, |
| 400 | emails := *, |
| 401 | phone_numbers := *, |
| 402 | connection := tr_SDP_connection_IP(remote_addr, ?), |
| 403 | bandwidth := *, |
| 404 | times := ?, |
| 405 | timezone_adjustments := *, |
| 406 | key := *, |
| 407 | attributes := *, |
| 408 | media_list := { tr_SDP_media_desc(rtp_port) } |
| 409 | } |
| 410 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 411 | template SDP_attribute ts_SDP_rtpmap(integer fmt, charstring val) := { |
| 412 | rtpmap := { |
| 413 | attr_value := int2str(fmt) & " " & val |
| 414 | } |
| 415 | } |
| 416 | template SDP_attribute ts_SDP_ptime(integer p) := { |
| 417 | ptime := { |
| 418 | attr_value := int2str(p) |
| 419 | } |
| 420 | } |
Philipp Maier | c8c0b40 | 2019-03-07 10:48:45 +0100 | [diff] [blame] | 421 | template SDP_attribute ts_SDP_fmtp(integer fmt, charstring val) := { |
| 422 | fmtp := { |
| 423 | attr_value := int2str(fmt) & " " & val |
| 424 | } |
| 425 | } |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 426 | |
Pau Espin Pedrol | 384e949 | 2020-09-03 17:05:19 +0200 | [diff] [blame] | 427 | function f_mgcp_addr2addrtype(charstring addr) return charstring { |
| 428 | for (var integer i := 0; i < lengthof(addr); i := i + 1) { |
| 429 | if (addr[i] == ":") { |
| 430 | return "IP6"; |
| 431 | } |
| 432 | } |
| 433 | return "IP4"; |
| 434 | } |
| 435 | |
Pau Espin Pedrol | b2c6b38 | 2019-05-14 13:40:49 +0200 | [diff] [blame] | 436 | /* -1 is wildcard, positive is translated as string */ |
| 437 | function f_mgcp_osmux_cid_encode(MgcpOsmuxCID osmux_cid) return charstring { |
| 438 | if (osmux_cid == -1) { |
| 439 | return "*"; |
| 440 | } |
| 441 | return int2str(osmux_cid); |
| 442 | } |
| 443 | |
| 444 | function f_mgcp_osmux_cid_decode(charstring osmux_cid) return MgcpOsmuxCID { |
| 445 | if (osmux_cid == "*") { |
| 446 | return -1; |
| 447 | } |
| 448 | return str2int(osmux_cid); |
| 449 | } |
| 450 | |
Neels Hofmeyr | 2ca1ab4 | 2019-03-08 03:45:43 +0100 | [diff] [blame] | 451 | function f_mgcp_contains_par(MgcpMessage msg, MgcpInfoCode code) return boolean { |
| 452 | var MgcpParameterList pars; |
| 453 | if (ischosen(msg.command)) { |
| 454 | pars := msg.command.params; |
| 455 | } else { |
| 456 | pars := msg.response.params; |
| 457 | } |
| 458 | for (var integer i := 0; i < lengthof(pars); i := i + 1) { |
| 459 | var MgcpParameter par := pars[i]; |
| 460 | if (par.code == code) { |
| 461 | return true; |
| 462 | } |
| 463 | } |
| 464 | return false; |
| 465 | } |
| 466 | |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 467 | function f_mgcp_extract_par(MgcpMessage msg, MgcpInfoCode code) return charstring { |
| 468 | var MgcpParameterList pars; |
| 469 | if (ischosen(msg.command)) { |
| 470 | pars := msg.command.params; |
| 471 | } else { |
| 472 | pars := msg.response.params; |
| 473 | } |
| 474 | for (var integer i := 0; i < lengthof(pars); i := i + 1) { |
| 475 | var MgcpParameter par := pars[i]; |
| 476 | if (par.code == code) { |
| 477 | return par.val; |
Harald Welte | 4c11d56 | 2017-11-24 23:39:00 +0100 | [diff] [blame] | 478 | } |
| 479 | } |
Daniel Willmann | e4ff537 | 2018-07-05 17:35:03 +0200 | [diff] [blame] | 480 | setverdict(fail, "Could not extract parameters for code ", code); |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 481 | return ""; |
| 482 | } |
| 483 | |
Harald Welte | 1fe7481 | 2018-01-29 21:57:26 +0100 | [diff] [blame] | 484 | function f_MgcpResp_extract_par(MgcpResponse resp, MgcpInfoCode code) return charstring { |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 485 | var MgcpMessage msg := { |
| 486 | response := resp |
| 487 | } |
Harald Welte | 1fe7481 | 2018-01-29 21:57:26 +0100 | [diff] [blame] | 488 | return f_mgcp_extract_par(msg, code); |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 489 | } |
| 490 | |
Harald Welte | 1fe7481 | 2018-01-29 21:57:26 +0100 | [diff] [blame] | 491 | function f_MgcpCmd_extract_par(MgcpCommand cmd, MgcpInfoCode code) return charstring { |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 492 | var MgcpMessage msg := { |
| 493 | command := cmd |
| 494 | } |
Harald Welte | 1fe7481 | 2018-01-29 21:57:26 +0100 | [diff] [blame] | 495 | return f_mgcp_extract_par(msg, code); |
Harald Welte | 4c11d56 | 2017-11-24 23:39:00 +0100 | [diff] [blame] | 496 | } |
| 497 | |
Neels Hofmeyr | 2ca1ab4 | 2019-03-08 03:45:43 +0100 | [diff] [blame] | 498 | function f_MgcpCmd_contains_par(MgcpCommand cmd, MgcpInfoCode code) return boolean { |
| 499 | var MgcpMessage msg := { |
| 500 | command := cmd |
| 501 | } |
| 502 | return f_mgcp_contains_par(msg, code); |
| 503 | } |
| 504 | |
Harald Welte | 1fe7481 | 2018-01-29 21:57:26 +0100 | [diff] [blame] | 505 | function f_MgcpResp_extract_conn_id(MgcpResponse resp) return MgcpConnectionId { |
| 506 | return str2hex(f_MgcpResp_extract_par(resp, "I")); |
| 507 | } |
| 508 | |
| 509 | function f_MgcpCmd_extract_call_id(MgcpCommand cmd) return MgcpCallId { |
| 510 | return str2hex(f_MgcpCmd_extract_par(cmd, "C")); |
| 511 | } |
| 512 | |
| 513 | function f_MgcpCmd_extract_conn_id(MgcpCommand cmd) return MgcpConnectionId { |
| 514 | return str2hex(f_MgcpCmd_extract_par(cmd, "I")); |
| 515 | } |
| 516 | |
Pau Espin Pedrol | b2c6b38 | 2019-05-14 13:40:49 +0200 | [diff] [blame] | 517 | function f_MgcpCmd_extract_osmux_cid(MgcpCommand cmd) return MgcpOsmuxCID { |
| 518 | return f_mgcp_osmux_cid_decode(f_MgcpCmd_extract_par(cmd, "X-OSMUX")); |
| 519 | } |
| 520 | |
Harald Welte | 1fe7481 | 2018-01-29 21:57:26 +0100 | [diff] [blame] | 521 | |
Harald Welte | 4c11d56 | 2017-11-24 23:39:00 +0100 | [diff] [blame] | 522 | function f_mgcp_alloc_tid() return MgcpTransId { |
| 523 | return int2str(float2int(rnd()*2147483647.0)); |
| 524 | } |
| 525 | |
| 526 | function f_mgcp_alloc_call_id() return MgcpCallId { |
| 527 | return int2hex(float2int(rnd()*2147483647.0), 8); |
| 528 | } |
| 529 | |
| 530 | function f_mgcp_alloc_conn_id() return MgcpConnectionId { |
| 531 | return int2hex(float2int(rnd()*2147483647.0), 8); |
| 532 | } |
| 533 | |
Harald Welte | bb5a121 | 2018-01-26 10:34:44 +0100 | [diff] [blame] | 534 | /* those verbs that related to a connection (and hence have ConnectionId) */ |
| 535 | template MgcpVerb tr_MgcpVerb_ConnectionOriented := ("CRCX", "MDCX", "DLCX", "AUCX"); |
| 536 | /* entire command template matching only connection oriented verbs */ |
| 537 | template MgcpCommand tr_MgcpCommand_CO := { |
| 538 | line := { |
| 539 | verb := tr_MgcpVerb_ConnectionOriented, |
| 540 | trans_id := ?, |
| 541 | ep := ?, |
| 542 | ver := ? |
| 543 | }, |
| 544 | params := *, |
| 545 | sdp := * |
| 546 | } |
| 547 | |
Neels Hofmeyr | ac7526d | 2019-10-15 16:54:37 +0200 | [diff] [blame] | 548 | function f_mgcp_find_param_entry(MgcpParameterList pars, MgcpInfoCode code, out charstring ret) |
| 549 | return boolean { |
| 550 | for (var integer i := 0; i < sizeof(pars); i := i+1) { |
| 551 | if (pars[i].code == code) { |
| 552 | ret := pars[i].val; |
| 553 | return true; |
| 554 | } |
| 555 | } |
| 556 | return false; |
| 557 | } |
| 558 | |
Harald Welte | 363cb0a | 2018-01-30 19:35:53 +0100 | [diff] [blame] | 559 | function f_mgcp_find_param(MgcpMessage msg, MgcpInfoCode code, out charstring ret) |
| 560 | return boolean { |
| 561 | var MgcpParameterList pars; |
| 562 | if (ischosen(msg.command)) { |
| 563 | pars := msg.command.params; |
| 564 | } else { |
| 565 | pars := msg.response.params; |
| 566 | } |
Neels Hofmeyr | ac7526d | 2019-10-15 16:54:37 +0200 | [diff] [blame] | 567 | return f_mgcp_find_param_entry(pars, code, ret); |
Harald Welte | 363cb0a | 2018-01-30 19:35:53 +0100 | [diff] [blame] | 568 | } |
| 569 | |
| 570 | /* template to determine if a MGCP endpoint is a wildcard endpoint */ |
| 571 | template charstring t_MGCP_EP_wildcard := (pattern "\*@*", pattern "rtpbridge/\*@*"); |
| 572 | |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 573 | |
Harald Welte | 4029e8c | 2017-11-23 22:00:42 +0100 | [diff] [blame] | 574 | } |