| File: | src/v150_1.c |
| Warning: | line 2425, column 5 Value stored to 'res' is never read |
| 1 | /* |
| 2 | * SpanDSP - a series of DSP components for telephony |
| 3 | * |
| 4 | * v150_1.c - An implementation of V.150.1. |
| 5 | * |
| 6 | * Written by Steve Underwood <steveu@coppice.org> |
| 7 | * |
| 8 | * Copyright (C) 2022, 2023 Steve Underwood |
| 9 | * |
| 10 | * All rights reserved. |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License version 2, as |
| 14 | * published by the Free Software Foundation. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | */ |
| 25 | |
| 26 | #if defined(HAVE_CONFIG_H1) |
| 27 | #include "config.h" |
| 28 | #endif |
| 29 | |
| 30 | #include <stdio.h> |
| 31 | #include <stdlib.h> |
| 32 | #include <sys/types.h> |
| 33 | #include <inttypes.h> |
| 34 | #include <memory.h> |
| 35 | #if defined(HAVE_STDBOOL_H1) |
| 36 | #include <stdbool.h> |
| 37 | #else |
| 38 | #include <spandsp/stdbool.h> |
| 39 | #endif |
| 40 | |
| 41 | #define SPANDSP_FULLY_DEFINE_SPRT_STATE_T |
| 42 | |
| 43 | #include "spandsp/telephony.h" |
| 44 | #include "spandsp/alloc.h" |
| 45 | #include "spandsp/unaligned.h" |
| 46 | #include "spandsp/logging.h" |
| 47 | #include "spandsp/async.h" |
| 48 | #include "spandsp/sprt.h" |
| 49 | #include "spandsp/v150_1.h" |
| 50 | #include "spandsp/v150_1_sse.h" |
| 51 | |
| 52 | #include "spandsp/private/logging.h" |
| 53 | #include "spandsp/private/sprt.h" |
| 54 | #include "spandsp/private/v150_1_sse.h" |
| 55 | #include "spandsp/private/v150_1.h" |
| 56 | |
| 57 | #include "v150_1_local.h" |
| 58 | |
| 59 | /* Terminology |
| 60 | |
| 61 | V.150.1 has several components. The terms used for these are: |
| 62 | |
| 63 | Signalling state events (SSE) |
| 64 | An RTP payload type which encodes indications of changes between audio, FoIP, MoIP, and ToIP modes. |
| 65 | In SDP this is referred to as v150fw. |
| 66 | Simple packet relay transport (SPRT) |
| 67 | A hybrid unreliable plus reliable packet over UDP protocol, compatible with sending RTP to and from the |
| 68 | same UDP port. You can also find the term IP-TLP associated wtih this protocol. In SDP this is referred |
| 69 | to udpsprt. |
| 70 | The actual V.150.1 modem relay protocol. |
| 71 | These are are messages which typically pass across an SPRT transport. In SDP this is referred to as v150mr. |
| 72 | */ |
| 73 | |
| 74 | /* A Cisco box in V.150.1 mode is quite fussy about what it receives to trigger it into a V.8 exchange with an attached |
| 75 | modem. |
| 76 | |
| 77 | Simply sending a bunch of /ANSam RFC3733/RFC4734 packets gets you nowhere, but this does contradict what RFC4734 |
| 78 | says. |
| 79 | |
| 80 | Waiting 200ms after answer, sending 450ms of ANSam, then switching to sending /ANSam until a v150fw packet |
| 81 | arrives, then sending /ANSam-end, sounds compliant, but a Cisco doesn't like that. It would never happen connected |
| 82 | to a real modem, as it takes a while to detect ANSam, and be sure the AM part if really there. A real modem |
| 83 | connected to a Cisco causes the Cisco to send something like 200ms of ANSam, before the switch to /ANSam. Trying |
| 84 | to mimic that gets you farther. |
| 85 | |
| 86 | When I failed to send /ANSam-end at the end of my tone the Cisco behaved quirkily. However, when I call into the |
| 87 | Cisco, it just stops sending /ANSam, and never seems to send any /ANSam-end packets. |
| 88 | |
| 89 | Cisco seems to consistently accept the following as a valid ANSamPR, resulting in a v150fw CM packet being received |
| 90 | from the Cisco: |
| 91 | ANSWER |
| 92 | Send 40ms to several seconds of silence |
| 93 | Send 11 to 20 ANSam packets at 20ms per packet |
| 94 | 22 fails, and you get an v150fw AA message, instead of a CM message. This is reasonable, as the phase |
| 95 | reversal is almost late, and if you consider the sending end would need some time to detect the |
| 96 | initial tone, its really quite late. |
| 97 | 21 acts really quirky, and you may get nothing back. The Cisco seems to get really messed up. No RTP or |
| 98 | SPRT comes from it until the calling hangs up. |
| 99 | Values between 1 and 10 seem quirky. 10 fails, and you get an v150fw AA message, instead of a CM message. |
| 100 | Some values between 1 and 10 often work OK, while others give an AA. |
| 101 | Send sustained /ANSam at 20ms per packet, until... |
| 102 | ..... v150fw packet received |
| 103 | Send 4 /ANSam end packets at 20ms intervals |
| 104 | */ |
| 105 | |
| 106 | /* A Cisco box has the following parameters: |
| 107 | |
| 108 | modem relay latency <milliseconds> |
| 109 | Specifies the estimated one-way delay across the IP network. |
| 110 | Range is 100 to 1000. Default is 200. |
| 111 | |
| 112 | modem relay sse redundancy interval <milliseconds> |
| 113 | Specifies the timer value for redundant transmission of SSEs. |
| 114 | Range is 5ms to 50ms. Default is 20ms. |
| 115 | |
| 116 | modem relay sse redundancy packet <number> |
| 117 | Specifies the SSE packet transmission count before disconnecting. |
| 118 | Range is 1 to 5 packets. Default is 3. |
| 119 | |
| 120 | modem relay sse t1 <milliseconds> |
| 121 | Specifies the repeat interval, in milliseconds (ms), for initial audio SSEs used for resetting the SSE protocol state machine (clearing the call) following error recovery. |
| 122 | Range is 500ms to 3000ms. Default is 1000ms. |
| 123 | |
| 124 | modem relay sse retries <value> |
| 125 | Specifies the number of SSE packet retries, repeated every t1 interval, before disconnecting. |
| 126 | Range is 0 to 5. Default is 5. |
| 127 | |
| 128 | modem relay sprt retries <value> |
| 129 | Specifies the number of SPRT packet retries, repeated every t1 interval, before disconnecting. |
| 130 | Range is 0 to 10. Default is 10. |
| 131 | |
| 132 | modem relay sprt v14 receive playback hold-time <milliseconds> |
| 133 | Configures the time, in ms, to hold incoming data in the V.14 receive queue. |
| 134 | Range is 20ms to 250ms. Default is 50ms. |
| 135 | |
| 136 | modem relay sprt v14 transmit hold-time <milliseconds> |
| 137 | Configures the time to wait, in ms, after the first character is ready before sending |
| 138 | the SPRT packet. |
| 139 | Range is 10ms to 30ms. Default is 20ms. |
| 140 | |
| 141 | modem relay sprt v14 transmit maximum hold-count <characters> |
| 142 | Configures the number of V.14 characters to be received on the modem interface that will |
| 143 | trigger sending an SPRT packet. |
| 144 | Range is 8 to 128. Default is 16. |
| 145 | */ |
| 146 | |
| 147 | /* |
| 148 | |
| 149 | There are two defined versions of a modem relay gateway: |
| 150 | |
| 151 | U-MR: A Universal Modem Relay |
| 152 | |
| 153 | A U-MR needs to support V.92 digital, V.90 digital, V.34, V.32bis, V.32, V.22bis, V.22, V.23 and V.21 |
| 154 | |
| 155 | V-MR: A V.8 Modem Relay |
| 156 | A V-MR doesn't have to support any specific set of modulations. Instead, V.8 is used to negotiate a |
| 157 | common one. Inter-gateway messages exchanged during call setup can be used for each end to inform the |
| 158 | other which modulations are supported. |
| 159 | |
| 160 | |
| 161 | The SPRT related SDP needs a entry like: |
| 162 | |
| 163 | a=fmtp:120 mr=1;mg=0;CDSCselect=1;jmdelay=no;versn=1.1 |
| 164 | |
| 165 | mr=0 for V-MR |
| 166 | =1 for U-MR |
| 167 | |
| 168 | mg=0 for no transcompression |
| 169 | =1 for single transcompression |
| 170 | =2 for double transcompression |
| 171 | |
| 172 | CDSCselect=1 for audio RFC4733 |
| 173 | =2 for VBD preferred |
| 174 | =3 for Mixed |
| 175 | |
| 176 | mrmods=1-4,10-12,14,17 |
| 177 | where 1 = V.34 duplex |
| 178 | 2 = V.34 half-duplex |
| 179 | 3 = V.32bis/V.32 |
| 180 | 4 = V.22bis/V.22 |
| 181 | 5 = V.17 |
| 182 | 6 = V.29 |
| 183 | 7 = V.27ter |
| 184 | 8 = V.26ter |
| 185 | 9 = V.26bis |
| 186 | 10 = V.23 duplex |
| 187 | 11 = V.23 half-duplex |
| 188 | 12 = V.21 |
| 189 | 13 = V.90 analogue |
| 190 | 14 = V.90 digital |
| 191 | 15 = V/91 |
| 192 | 16 = V.92 analogue |
| 193 | 17 = V.92 digital |
| 194 | |
| 195 | jmdelay=no JM delay not supported |
| 196 | =yes JM delay supported |
| 197 | |
| 198 | versn=1.1 This is optional. The current version is 1.1 |
| 199 | |
| 200 | txalgs=1 V.44 (V.42bis is always required, so is not listed in this tag) |
| 201 | =2 MNP5 |
| 202 | |
| 203 | v42bNumCodeWords=1024 |
| 204 | |
| 205 | v42bMaxStringLength=32 |
| 206 | |
| 207 | v44NumTxCodewords=1024 |
| 208 | |
| 209 | v44NumRxCodewords=1024 |
| 210 | |
| 211 | v44MaxTxStringLength=64 |
| 212 | |
| 213 | v44MaxRxStringLength=64 |
| 214 | |
| 215 | V44LenTxHistory=3072 |
| 216 | |
| 217 | V44LenRxHistory=3072 |
| 218 | |
| 219 | TCXpreference=1 |
| 220 | =2 |
| 221 | |
| 222 | |
| 223 | |
| 224 | a=sprtparm: 140 132 132 140 32 8 |
| 225 | |
| 226 | These are the maximum payload sizes for the 4 channels, and the maximum window sizes for |
| 227 | the two reliable channels. A '$' may be used for unspecified values. |
| 228 | |
| 229 | |
| 230 | a=vndpar: <vendorIDformat> <vendorID> <vendorSpecificDataTag> <vendorSpecificData> |
| 231 | |
| 232 | <vendorIDformat>=1 for T.35 |
| 233 | =2 for IANA private enterprise number |
| 234 | |
| 235 | <vendorID> |
| 236 | <vendorSpecificDataTag> |
| 237 | <vendorSpecificData> |
| 238 | |
| 239 | Voice band data (VBD) mode: |
| 240 | |
| 241 | |<----------------------------------- Data compression ------------------------------------->| |
| 242 | |<----------------------------------- Error correction ------------------------------------->| |
| 243 | |<-------------------------------------- Modulation ---------------------------------------->| |
| 244 | | |<---- Encapsulated G.711 ---->| | |
| 245 | | | | | |
| 246 | |<---------- PSTN ----------->|<-------Packet network ------>|<----------- PSTN ------------>| |
| 247 | |
| 248 | |
| 249 | The various modem relay error correction and compression scenarios: |
| 250 | |
| 251 | MR1 |
| 252 | |
| 253 | |<----------------------------------- Data compression --- --------------------------------->| |
| 254 | |<---- Error correction ----->| |<----- Error correction ------>| |
| 255 | |<------- Modulation -------->| |<-------- Modulation --------->| |
| 256 | | |<---- Reliable transport ---->| | |
| 257 | | | | | |
| 258 | |<---------- PSTN ----------->|<-------Packet network ------>|<----------- PSTN ------------>| |
| 259 | |
| 260 | |
| 261 | MR2 |
| 262 | |
| 263 | |<---- Data compression ----->| |<----- Data compression ------>| |
| 264 | |<---- Error correction ----->| |<----- Error correction ------>| |
| 265 | |<------- Modulation -------->| |<-------- Modulation --------->| |
| 266 | | |<------- MR2a or MR2b ------->| | |
| 267 | | | | | |
| 268 | |<---------- PSTN ----------->|<-------Packet network ------>|<----------- PSTN ------------>| |
| 269 | |
| 270 | MR2a: Reliable transport without data compression |
| 271 | MR2b: Reliable transport with data compression |
| 272 | |
| 273 | |
| 274 | |
| 275 | MR3 |
| 276 | |
| 277 | |<---- Data compression ----->|<-------------------- Data compression ---------------------->| |
| 278 | |<------------------- Data compression --------------------->|<----- Data compression ------>| |
| 279 | |<---- Error correction -0--->| |<----- Error correction ------>| |
| 280 | |<------- Modulation -------->| |<-------- Modulation --------->| |
| 281 | | |<---- Reliable transport ---->| | |
| 282 | | | | | |
| 283 | |<--------- PSTN ------------>|<------ Packet network ------>|<----------- PSTN ------------>| |
| 284 | |
| 285 | |
| 286 | |
| 287 | MR4 |
| 288 | |
| 289 | |<------------------- Data compression --------------------->|<----- Data compression ------>| |
| 290 | |<---- Error correction ----->| |<----- Error correction ------>| |
| 291 | |<------- Modulation -------->| |<-------- Modulation --------->| |
| 292 | | |<---- Reliable transport ---->| | |
| 293 | | | | | |
| 294 | |<---------- PSTN ----------->|<-------Packet network ------>|<----------- PSTN ------------>| |
| 295 | |
| 296 | */ |
| 297 | |
| 298 | /* Example call flows |
| 299 | |
| 300 | Establishing Modem Relay with V.32 Modem |
| 301 | |
| 302 | M1 G1 G2 M2 |
| 303 | | | | | |
| 304 | | | |<-------------ANS--------------| |
| 305 | | |<--------RFC4733 ANS----------| | |
| 306 | |<------------ANS-------------| | | |
| 307 | | | |<------------/ANS--------------| |
| 308 | | |<--------RFC4733 /ANS---------| | |
| 309 | |<-----------/ANS-------------| | | |
| 310 | | | | | |
| 311 | | | | | |
| 312 | |<<----- V.32 signals ------>>| | | |
| 313 | | |-------SSE MR(m,a) AA-------->| | |
| 314 | | | |<<------ V.32 signals ------->>| |
| 315 | | |<------SSE MR(m,m) p'---------| | |
| 316 | |<<----- V.32 signals ------>>| | | |
| 317 | | |-----------SPRT:INIT--------->|<<------ V.32 signals ------->>| |
| 318 | | | | | |
| 319 | | |<----------SPRT:INIT----------| | |
| 320 | |<<----- V.32 signals ------>>| |<<------ V.32 signals ------->>| |
| 321 | | |<--SPRT:MR_EVENT(PHYSUPv32)---| | |
| 322 | | | | | |
| 323 | | |---SPRT:MR_EVENT(PHYSUPv32)-->| | |
| 324 | | | | | |
| 325 | | |<------SPRT:CONNECT(v32)------| | |
| 326 | | | | | |
| 327 | | |-------SPRT:CONNECT(v32)----->| | |
| 328 | | | | | |
| 329 | |<<------ V.32 data -------->>|<<-------- SPRT:data ------->>|<<-------- V.32 data -------->>| |
| 330 | | | | | |
| 331 | | | | | |
| 332 | |
| 333 | |
| 334 | |
| 335 | Establishing Modem Relay with V.34 Modem |
| 336 | |
| 337 | M1 G1 G2 M2 |
| 338 | | | | | |
| 339 | | | |<-------------ANS--------------| |
| 340 | | |<--------RFC4733 ANS----------| | |
| 341 | |<-----------ANS--------------| | | |
| 342 | | | |<------------/ANS--------------| |
| 343 | | |<--------RFC4733 /ANS---------| | |
| 344 | |<----------/ANS--------------| | | |
| 345 | | | | | |
| 346 | |------------CM-------------->| | | |
| 347 | | |-----SSE MR(m,a) CM(v34)----->| | |
| 348 | | | |--------------CM-------------->| |
| 349 | | |<------SSE MR(m,m) p'---------| | |
| 350 | | | | | |
| 351 | | |-----------SPRT:INIT--------->| | |
| 352 | | | | | |
| 353 | | |<----------SPRT:INIT----------| | |
| 354 | | | |<-------------JM---------------| |
| 355 | | |<-----SPRT:JM_INFO(v34)-------| | |
| 356 | |<-----------JM---------------| | | |
| 357 | | | | | |
| 358 | |<<----- V.34 signals ------>>| |<<------ V.34 signals ------->>| |
| 359 | | |<--SPRT:MR_EVENT(PHYSUPv34)---| | |
| 360 | | | | | |
| 361 | | |---SPRT:MR_EVENT(PHYSUPv34)-->| | |
| 362 | | | | | |
| 363 | | |<------SPRT:CONNECT(v34)------| | |
| 364 | | | | | |
| 365 | | |-------SPRT:CONNECT(v34)----->| | |
| 366 | | | | | |
| 367 | |<<------ V.34 data -------->>|<<-------- SPRT:data ------->>|<<-------- V.34 data -------->>| |
| 368 | | | | | |
| 369 | | | | | |
| 370 | |
| 371 | |
| 372 | |
| 373 | Establishing Modem Relay with ITU V.34 Modem with no JM_INFO Message Sent from G2 Gateway |
| 374 | |
| 375 | M1 G1 G2 M2 |
| 376 | | | | | |
| 377 | | | |<-------------ANS--------------| |
| 378 | | |<--------RFC4733 ANS----------| | |
| 379 | |<-----------ANS--------------| | | |
| 380 | | | |<------------/ANS--------------| |
| 381 | | |<--------RFC4733 /ANS---------| | |
| 382 | |<----------/ANS--------------| | | |
| 383 | | | | | |
| 384 | |------------CM-------------->| | | |
| 385 | | |-----SSE MR(m,a) CM(v34)----->| | |
| 386 | |<-----------JM---------------| |--------------CM-------------->| |
| 387 | | |<------SSE MR(m,m) p'---------| | |
| 388 | | | | | |
| 389 | | |-----------SPRT:INIT--------->| | |
| 390 | | | | | |
| 391 | | |<----------SPRT:INIT----------| | |
| 392 | | | |<-------------JM---------------| |
| 393 | | | | | |
| 394 | |<<----- V.34 signals ------>>| |<<------ V.34 signals ------->>| |
| 395 | | |<--SPRT:MR_EVENT(PHYSUPv34)---| | |
| 396 | | | | | |
| 397 | | |---SPRT:MR_EVENT(PHYSUPv34)-->| | |
| 398 | | | | | |
| 399 | | |<------SPRT:CONNECT(v34)------| | |
| 400 | | | | | |
| 401 | | |-------SPRT:CONNECT(v34)----->| | |
| 402 | | | | | |
| 403 | |<<------- V.34 data ------->>|<<-------- SPRT:data ------->>|<<-------- V.34 data -------->>| |
| 404 | | | | | |
| 405 | | | | | |
| 406 | |
| 407 | |
| 408 | |
| 409 | |
| 410 | Establishing Modem Relay with ITU V.90 Modem |
| 411 | |
| 412 | M1 G1 G2 M2 |
| 413 | | | | | |
| 414 | | | |<-------------ANS--------------| |
| 415 | | |<--------RFC4733 ANS----------| | |
| 416 | |<------------ANS-------------| | | |
| 417 | | | |<------------/ANS--------------| |
| 418 | | |<--------RFC4733 /ANS---------| | |
| 419 | |<-----------/ANS-------------| | | |
| 420 | | | | | |
| 421 | |-------------CM------------->| | | |
| 422 | | |--SSE MR(m,a) CM(v90 or v92)->| | |
| 423 | | ` | |--------------CM-------------->| |
| 424 | | |<------SSE MR(m,m) p'---------| | |
| 425 | | | | | |
| 426 | | |-----------SPRT:INIT--------->| | |
| 427 | | | | | |
| 428 | | |<----------SPRT:INIT----------| | |
| 429 | | | |<-------------JM---------------| |
| 430 | | |<--SPRT:JM_INFO (v90 or v92)--| | |
| 431 | |<------------JM--------------| | | |
| 432 | | | | | |
| 433 | |<<----- V.90 signals ------>>| |<<------ V.90 signals ------->>| |
| 434 | | |<--SPRT:MR_EVENT(PHYSUPv90)---| | |
| 435 | | | | | |
| 436 | | |<------SPRT:CONNECT(v90)------| | |
| 437 | | | | | |
| 438 | | |---SPRT:MR_EVENT(PHYSUPv90)-->| | |
| 439 | | | | | |
| 440 | | |-------SPRT:CONNECT(v90)----->| | |
| 441 | | | | | |
| 442 | |<<------- V.90 data ------->>|<<-------- SPRT:data ------->>|<<-------- V.90 data -------->>| |
| 443 | | | | | |
| 444 | | | | | |
| 445 | |
| 446 | |
| 447 | |
| 448 | |
| 449 | Establishing Modem Relay with ITU V.92 Modem |
| 450 | |
| 451 | M1 G1 G2 M2 |
| 452 | | | | | |
| 453 | | | |<--------------ANS-------------| |
| 454 | | |<--------RFC4733 ANS----------| | |
| 455 | |<------------ANS-------------| | | |
| 456 | | | |<-------------/ANS-------------| |
| 457 | | |<--------RFC4733 /ANS---------| | |
| 458 | |<-----------/ANS-------------| | | |
| 459 | | | | | |
| 460 | |-------------CM------------->| | | |
| 461 | | |--SSE MR(m,a) CM(v90 or v92)->| | |
| 462 | | | |---------------CM------------->| |
| 463 | | |<------SSE MR(m,m) p'---------| | |
| 464 | | | | | |
| 465 | | |-----------SPRT:INIT--------->| | |
| 466 | | | | | |
| 467 | | |<----------SPRT:INIT----------| | |
| 468 | | | |<--------------JM--------------| |
| 469 | | |<--SPRT:JM_INFO (v90 or v92)--| | |
| 470 | |<------------JM--------------| | | |
| 471 | | | | | |
| 472 | |<<----- V.92 signals ------>>| |<<------- V.92 signals ------>>| |
| 473 | | |<--SPRT:MR_EVENT(PHYSUPv92)---| | |
| 474 | | | | | |
| 475 | | |<------SPRT:CONNECT(v92)------| | |
| 476 | | | | | |
| 477 | | |---SPRT:MR_EVENT(PHYSUPv92)-->| | |
| 478 | | | | | |
| 479 | | |-------SPRT:CONNECT(v90)----->| | |
| 480 | | | | | |
| 481 | |<<------- V.92 data ------->>|<<-------- SPRT:data ------->>|<<-------- V.92 data -------->>| |
| 482 | | | | | |
| 483 | | | | | |
| 484 | */ |
| 485 | |
| 486 | /* |
| 487 | telephone network |
| 488 | ^ |
| 489 | | |
| 490 | | |
| 491 | v |
| 492 | +-----------------------------------+ |
| 493 | | | |
| 494 | | Signal processing entity (SPE) | |
| 495 | | | |
| 496 | +-----------------------------------+ |
| 497 | | ^ |
| 498 | | | |
| 499 | Signal list 1 | | Signal list 2 |
| 500 | | | |
| 501 | v | |
| 502 | +-----------------------------------+ Signal list 5 +-----------------------------------+ |
| 503 | | | ----------------->| | |
| 504 | | SSE protocol state machine (P) | | Gateway state machine (s,s') | |
| 505 | | |<------------------| | |
| 506 | +-----------------------------------+ Signal list 6 +-----------------------------------+ |
| 507 | | ^ |
| 508 | | | |
| 509 | Signal list 3 | | Signal list 4 |
| 510 | | | |
| 511 | v | |
| 512 | +-----------------------------------+ |
| 513 | | | |
| 514 | | IP network processor | |
| 515 | | | |
| 516 | +-----------------------------------+ |
| 517 | ^ |
| 518 | | |
| 519 | | |
| 520 | v |
| 521 | IP network |
| 522 | */ |
| 523 | |
| 524 | /* |
| 525 | Table 31/V.150.1 - MoIP initial modes. |
| 526 | |
| 527 | <<<<<<<< Additional modes supported >>>>>>>> Starting mode |
| 528 | FoIP (T.38) and/or ToIP (V.151) VoIP |
| 529 | ----------------------------------------------------------------------------- |
| 530 | No No MoIP |
| 531 | No Yes VoIP |
| 532 | Yes No MoIP |
| 533 | Yes Yes VoIP |
| 534 | */ |
| 535 | |
| 536 | /* Used to verify if a message type is compatible with the transmission |
| 537 | control channel it arrives on */ |
| 538 | static uint8_t channel_check[25] = |
| 539 | { |
| 540 | 0x0F, /* V150_1_MSGID_NULL */ |
| 541 | 0x04, /* V150_1_MSGID_INIT */ |
| 542 | 0x04, /* V150_1_MSGID_XID_XCHG */ |
| 543 | 0x04, /* V150_1_MSGID_JM_INFO */ |
| 544 | 0x04, /* V150_1_MSGID_START_JM */ |
| 545 | 0x04, /* V150_1_MSGID_CONNECT */ |
| 546 | 0x0F, /* V150_1_MSGID_BREAK */ |
| 547 | 0x0F, /* V150_1_MSGID_BREAKACK */ |
| 548 | 0x04, /* V150_1_MSGID_MR_EVENT */ |
| 549 | 0x04, /* V150_1_MSGID_CLEARDOWN */ |
| 550 | 0x04, /* V150_1_MSGID_PROF_XCHG */ |
| 551 | 0x00, /* Reserved (11) */ |
| 552 | 0x00, /* Reserved (12) */ |
| 553 | 0x00, /* Reserved (13) */ |
| 554 | 0x00, /* Reserved (14) */ |
| 555 | 0x00, /* Reserved (15) */ |
| 556 | 0x0A, /* V150_1_MSGID_I_RAW_OCTET */ |
| 557 | 0x0A, /* V150_1_MSGID_I_RAW_BIT (optional) */ |
| 558 | 0x0A, /* V150_1_MSGID_I_OCTET */ |
| 559 | 0x0A, /* V150_1_MSGID_I_CHAR_STAT (optional) */ |
| 560 | 0x0A, /* V150_1_MSGID_I_CHAR_DYN (optional) */ |
| 561 | 0x0A, /* V150_1_MSGID_I_FRAME (optional) */ |
| 562 | 0x0A, /* V150_1_MSGID_I_OCTET_CS (optional) (this only makes sense for the SPRT_TCID_UNRELIABLE_SEQUENCED channel) */ |
| 563 | 0x0A, /* V150_1_MSGID_I_CHAR_STAT_CS (optional) (this only makes sense for the SPRT_TCID_UNRELIABLE_SEQUENCED channel) */ |
| 564 | 0x0A /* V150_1_MSGID_I_CHAR_DYN_CS (optional) (this only makes sense for the SPRT_TCID_UNRELIABLE_SEQUENCED channel) */ |
| 565 | }; |
| 566 | |
| 567 | static struct |
| 568 | { |
| 569 | uint16_t min_payload_bytes; |
| 570 | uint16_t max_payload_bytes; |
| 571 | } channel_parm_limits[SPRT_CHANNELS4] = |
| 572 | { |
| 573 | { |
| 574 | SPRT_MIN_TC0_PAYLOAD_BYTES140, |
| 575 | SPRT_MAX_TC0_PAYLOAD_BYTES256 |
| 576 | }, |
| 577 | { |
| 578 | SPRT_MIN_TC1_PAYLOAD_BYTES132, |
| 579 | SPRT_MAX_TC1_PAYLOAD_BYTES256 |
| 580 | }, |
| 581 | { |
| 582 | SPRT_MIN_TC2_PAYLOAD_BYTES132, |
| 583 | SPRT_MAX_TC2_PAYLOAD_BYTES256 |
| 584 | }, |
| 585 | { |
| 586 | SPRT_MIN_TC3_PAYLOAD_BYTES140, |
| 587 | SPRT_MAX_TC3_PAYLOAD_BYTES256 |
| 588 | } |
| 589 | }; |
| 590 | |
| 591 | static span_timestamp_t update_call_discrimination_timer(v150_1_state_t *s, span_timestamp_t timeout); |
| 592 | |
| 593 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_msg_id_to_str(int msg_id) |
| 594 | { |
| 595 | const char *res; |
| 596 | |
| 597 | res = "unknown"; |
| 598 | switch (msg_id) |
| 599 | { |
| 600 | case V150_1_MSGID_NULL: |
| 601 | res = "NULL"; |
| 602 | break; |
| 603 | case V150_1_MSGID_INIT: |
| 604 | res = "INIT"; |
| 605 | break; |
| 606 | case V150_1_MSGID_XID_XCHG: |
| 607 | res = "XID xchg"; |
| 608 | break; |
| 609 | case V150_1_MSGID_JM_INFO: |
| 610 | res = "JM info"; |
| 611 | break; |
| 612 | case V150_1_MSGID_START_JM: |
| 613 | res = "Start JM"; |
| 614 | break; |
| 615 | case V150_1_MSGID_CONNECT: |
| 616 | res = "Connect"; |
| 617 | break; |
| 618 | case V150_1_MSGID_BREAK: |
| 619 | res = "Break"; |
| 620 | break; |
| 621 | case V150_1_MSGID_BREAKACK: |
| 622 | res = "Break ack"; |
| 623 | break; |
| 624 | case V150_1_MSGID_MR_EVENT: |
| 625 | res = "MR event"; |
| 626 | break; |
| 627 | case V150_1_MSGID_CLEARDOWN: |
| 628 | res = "Cleardown"; |
| 629 | break; |
| 630 | case V150_1_MSGID_PROF_XCHG: |
| 631 | res = "Prof xchg"; |
| 632 | break; |
| 633 | case V150_1_MSGID_I_RAW_OCTET: |
| 634 | res = "I raw octet"; |
| 635 | break; |
| 636 | case V150_1_MSGID_I_RAW_BIT: |
| 637 | res = "I raw bit"; |
| 638 | break; |
| 639 | case V150_1_MSGID_I_OCTET: |
| 640 | res = "I octet"; |
| 641 | break; |
| 642 | case V150_1_MSGID_I_CHAR_STAT: |
| 643 | res = "I char stat"; |
| 644 | break; |
| 645 | case V150_1_MSGID_I_CHAR_DYN: |
| 646 | res = "I char dyn"; |
| 647 | break; |
| 648 | case V150_1_MSGID_I_FRAME: |
| 649 | res = "I frame"; |
| 650 | break; |
| 651 | case V150_1_MSGID_I_OCTET_CS: |
| 652 | res = "I octet cs"; |
| 653 | break; |
| 654 | case V150_1_MSGID_I_CHAR_STAT_CS: |
| 655 | res = "I char stat cs"; |
| 656 | break; |
| 657 | case V150_1_MSGID_I_CHAR_DYN_CS: |
| 658 | res = "I char dyn cs"; |
| 659 | break; |
| 660 | } |
| 661 | /*endswitch*/ |
| 662 | return res; |
| 663 | } |
| 664 | /*- End of function --------------------------------------------------------*/ |
| 665 | |
| 666 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_data_bits_to_str(int code) |
| 667 | { |
| 668 | const char *res; |
| 669 | |
| 670 | res = "unknown"; |
| 671 | switch (code) |
| 672 | { |
| 673 | case V150_1_DATA_BITS_5: |
| 674 | res = "5 bits"; |
| 675 | break; |
| 676 | case V150_1_DATA_BITS_6: |
| 677 | res = "6 bits"; |
| 678 | break; |
| 679 | case V150_1_DATA_BITS_7: |
| 680 | res = "7 bits"; |
| 681 | break; |
| 682 | case V150_1_DATA_BITS_8: |
| 683 | res = "8 bits"; |
| 684 | break; |
| 685 | } |
| 686 | /*endswitch*/ |
| 687 | return res; |
| 688 | } |
| 689 | /*- End of function --------------------------------------------------------*/ |
| 690 | |
| 691 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_parity_to_str(int code) |
| 692 | { |
| 693 | const char *res; |
| 694 | |
| 695 | res = "unknown"; |
| 696 | switch (code) |
| 697 | { |
| 698 | case V150_1_PARITY_UNKNOWN: |
| 699 | res = "unknown"; |
| 700 | break; |
| 701 | case V150_1_PARITY_NONE: |
| 702 | res = "none"; |
| 703 | break; |
| 704 | break; |
| 705 | case V150_1_PARITY_EVEN: |
| 706 | res = "even"; |
| 707 | break; |
| 708 | case V150_1_PARITY_ODD: |
| 709 | res = "odd"; |
| 710 | break; |
| 711 | case V150_1_PARITY_SPACE: |
| 712 | res = "space"; |
| 713 | break; |
| 714 | case V150_1_PARITY_MARK: |
| 715 | res = "mark"; |
| 716 | break; |
| 717 | } |
| 718 | /*endswitch*/ |
| 719 | return res; |
| 720 | } |
| 721 | /*- End of function --------------------------------------------------------*/ |
| 722 | |
| 723 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_stop_bits_to_str(int code) |
| 724 | { |
| 725 | const char *res; |
| 726 | |
| 727 | res = "unknown"; |
| 728 | switch (code) |
| 729 | { |
| 730 | case V150_1_STOP_BITS_1: |
| 731 | res = "1 bit"; |
| 732 | break; |
| 733 | case V150_1_STOP_BITS_2: |
| 734 | res = "2 bits"; |
| 735 | break; |
| 736 | } |
| 737 | /*endswitch*/ |
| 738 | return res; |
| 739 | } |
| 740 | /*- End of function --------------------------------------------------------*/ |
| 741 | |
| 742 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_mr_event_type_to_str(int type) |
| 743 | { |
| 744 | const char *res; |
| 745 | |
| 746 | res = "unknown"; |
| 747 | switch (type) |
| 748 | { |
| 749 | case V150_1_MR_EVENT_ID_NULL: |
| 750 | res = "NULL"; |
| 751 | break; |
| 752 | case V150_1_MR_EVENT_ID_RATE_RENEGOTIATION: |
| 753 | res = "Renegotiation"; |
| 754 | break; |
| 755 | case V150_1_MR_EVENT_ID_RETRAIN: |
| 756 | res = "Retrain"; |
| 757 | break; |
| 758 | case V150_1_MR_EVENT_ID_PHYSUP: |
| 759 | res = "Physically up"; |
| 760 | break; |
| 761 | } |
| 762 | /*endswitch*/ |
| 763 | return res; |
| 764 | } |
| 765 | /*- End of function --------------------------------------------------------*/ |
| 766 | |
| 767 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_cleardown_reason_to_str(int type) |
| 768 | { |
| 769 | const char *res; |
| 770 | |
| 771 | res = "unknown"; |
| 772 | switch (type) |
| 773 | { |
| 774 | case V150_1_CLEARDOWN_REASON_UNKNOWN: |
| 775 | res = "Unknown"; |
| 776 | break; |
| 777 | case V150_1_CLEARDOWN_REASON_PHYSICAL_LAYER_RELEASE: |
| 778 | res = "Physical layer release"; |
| 779 | break; |
| 780 | case V150_1_CLEARDOWN_REASON_LINK_LAYER_DISCONNECT: |
| 781 | res = "Link layer disconnect"; |
| 782 | break; |
| 783 | case V150_1_CLEARDOWN_REASON_DATA_COMPRESSION_DISCONNECT: |
| 784 | res = "Data compression disconnect"; |
| 785 | break; |
| 786 | case V150_1_CLEARDOWN_REASON_ABORT: |
| 787 | res = "Abort"; |
| 788 | break; |
| 789 | case V150_1_CLEARDOWN_REASON_ON_HOOK: |
| 790 | res = "On hook"; |
| 791 | break; |
| 792 | case V150_1_CLEARDOWN_REASON_NETWORK_LAYER_TERMINATION: |
| 793 | res = "Network layer termination"; |
| 794 | break; |
| 795 | case V150_1_CLEARDOWN_REASON_ADMINISTRATIVE: |
| 796 | res = "Administrative"; |
| 797 | break; |
| 798 | } |
| 799 | /*endswitch*/ |
| 800 | return res; |
| 801 | } |
| 802 | /*- End of function --------------------------------------------------------*/ |
| 803 | |
| 804 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_symbol_rate_to_str(int code) |
| 805 | { |
| 806 | const char *res; |
| 807 | |
| 808 | res = "unknown"; |
| 809 | switch (code) |
| 810 | { |
| 811 | case V150_1_SYMBOL_RATE_NULL: |
| 812 | res = "NULL"; |
| 813 | break; |
| 814 | case V150_1_SYMBOL_RATE_600: |
| 815 | res = "600 baud"; |
| 816 | break; |
| 817 | case V150_1_SYMBOL_RATE_1200: |
| 818 | res = "1200 baud"; |
| 819 | break; |
| 820 | case V150_1_SYMBOL_RATE_1600: |
| 821 | res = "1600 baud"; |
| 822 | break; |
| 823 | case V150_1_SYMBOL_RATE_2400: |
| 824 | res = "2400 baud"; |
| 825 | break; |
| 826 | case V150_1_SYMBOL_RATE_2743: |
| 827 | res = "2743 baud"; |
| 828 | break; |
| 829 | case V150_1_SYMBOL_RATE_3000: |
| 830 | res = "3000 baud"; |
| 831 | break; |
| 832 | case V150_1_SYMBOL_RATE_3200: |
| 833 | res = "3200 baud"; |
| 834 | break; |
| 835 | case V150_1_SYMBOL_RATE_3429: |
| 836 | res = "3429 baud"; |
| 837 | break; |
| 838 | case V150_1_SYMBOL_RATE_8000: |
| 839 | res = "8000 baud"; |
| 840 | break; |
| 841 | } |
| 842 | /*endswitch*/ |
| 843 | return res; |
| 844 | } |
| 845 | /*- End of function --------------------------------------------------------*/ |
| 846 | |
| 847 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_modulation_to_str(int modulation) |
| 848 | { |
| 849 | const char *res; |
| 850 | |
| 851 | res = "unknown"; |
| 852 | switch (modulation) |
| 853 | { |
| 854 | case V150_1_SELMOD_NULL: |
| 855 | res = "NULL"; |
| 856 | break; |
| 857 | case V150_1_SELMOD_V92: |
| 858 | res = "V.92"; |
| 859 | break; |
| 860 | case V150_1_SELMOD_V91: |
| 861 | res = "V.91"; |
| 862 | break; |
| 863 | case V150_1_SELMOD_V90: |
| 864 | res = "V90"; |
| 865 | break; |
| 866 | case V150_1_SELMOD_V34: |
| 867 | res = "V.34"; |
| 868 | break; |
| 869 | case V150_1_SELMOD_V32bis: |
| 870 | res = "V.32bis"; |
| 871 | break; |
| 872 | case V150_1_SELMOD_V32: |
| 873 | res = "V.32"; |
| 874 | break; |
| 875 | case V150_1_SELMOD_V22bis: |
| 876 | res = "V.22bis"; |
| 877 | break; |
| 878 | case V150_1_SELMOD_V22: |
| 879 | res = "V.22"; |
| 880 | break; |
| 881 | case V150_1_SELMOD_V17: |
| 882 | res = "V.17"; |
| 883 | break; |
| 884 | case V150_1_SELMOD_V29: |
| 885 | res = "V.29"; |
| 886 | break; |
| 887 | case V150_1_SELMOD_V27ter: |
| 888 | res = "V.27ter"; |
| 889 | break; |
| 890 | case V150_1_SELMOD_V26ter: |
| 891 | res = "V.26ter"; |
| 892 | break; |
| 893 | case V150_1_SELMOD_V26bis: |
| 894 | res = "V.26bis"; |
| 895 | break; |
| 896 | case V150_1_SELMOD_V23: |
| 897 | res = "V.23"; |
| 898 | break; |
| 899 | case V150_1_SELMOD_V21: |
| 900 | res = "V.21"; |
| 901 | break; |
| 902 | case V150_1_SELMOD_BELL212: |
| 903 | res = "Bell 212"; |
| 904 | break; |
| 905 | case V150_1_SELMOD_BELL103: |
| 906 | res = "Bell 103"; |
| 907 | break; |
| 908 | } |
| 909 | /*endswitch*/ |
| 910 | return res; |
| 911 | } |
| 912 | /*- End of function --------------------------------------------------------*/ |
| 913 | |
| 914 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_compression_to_str(int compression) |
| 915 | { |
| 916 | const char *res; |
| 917 | |
| 918 | res = "unknown"; |
| 919 | switch (compression) |
| 920 | { |
| 921 | case V150_1_COMPRESSION_NONE: |
| 922 | res = "None"; |
| 923 | break; |
| 924 | case V150_1_COMPRESSION_V42BIS: |
| 925 | res = "V.42bis"; |
| 926 | break; |
| 927 | case V150_1_COMPRESSION_V44: |
| 928 | res = "V.44"; |
| 929 | break; |
| 930 | case V150_1_COMPRESSION_MNP5: |
| 931 | res = "MNP5"; |
| 932 | break; |
| 933 | } |
| 934 | /*endswitch*/ |
| 935 | return res; |
| 936 | } |
| 937 | /*- End of function --------------------------------------------------------*/ |
| 938 | |
| 939 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_compression_direction_to_str(int direction) |
| 940 | { |
| 941 | const char *res; |
| 942 | |
| 943 | res = "unknown"; |
| 944 | switch (direction) |
| 945 | { |
| 946 | case V150_1_COMPRESS_NEITHER_WAY: |
| 947 | res = "Neither way"; |
| 948 | break; |
| 949 | case V150_1_COMPRESS_TX_ONLY: |
| 950 | res = "Tx only"; |
| 951 | break; |
| 952 | case V150_1_COMPRESS_RX_ONLY: |
| 953 | res = "Rx only"; |
| 954 | break; |
| 955 | case V150_1_COMPRESS_BIDIRECTIONAL: |
| 956 | res = "Bidirectional"; |
| 957 | break; |
| 958 | } |
| 959 | /*endswitch*/ |
| 960 | return res; |
| 961 | } |
| 962 | /*- End of function --------------------------------------------------------*/ |
| 963 | |
| 964 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_error_correction_to_str(int correction) |
| 965 | { |
| 966 | const char *res; |
| 967 | |
| 968 | res = "unknown"; |
| 969 | switch (correction) |
| 970 | { |
| 971 | case V150_1_ERROR_CORRECTION_NONE: |
| 972 | res = "None"; |
| 973 | break; |
| 974 | case V150_1_ERROR_CORRECTION_V42_LAPM: |
| 975 | res = "V.42 LAPM"; |
| 976 | break; |
| 977 | case V150_1_ERROR_CORRECTION_V42_ANNEX_A: |
| 978 | res = "V.42 annex A"; |
| 979 | break; |
| 980 | } |
| 981 | /*endswitch*/ |
| 982 | return res; |
| 983 | } |
| 984 | /*- End of function --------------------------------------------------------*/ |
| 985 | |
| 986 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_break_source_to_str(int source) |
| 987 | { |
| 988 | const char *res; |
| 989 | |
| 990 | res = "unknown"; |
| 991 | switch (source) |
| 992 | { |
| 993 | case V150_1_BREAK_SOURCE_V42_LAPM: |
| 994 | res = "V.42 LAPM"; |
| 995 | break; |
| 996 | case V150_1_BREAK_SOURCE_V42_ANNEX_A: |
| 997 | res = "V.42 annex A"; |
| 998 | break; |
| 999 | case V150_1_BREAK_SOURCE_V14: |
| 1000 | res = "V.14"; |
| 1001 | break; |
| 1002 | } |
| 1003 | /*endswitch*/ |
| 1004 | return res; |
| 1005 | } |
| 1006 | /*- End of function --------------------------------------------------------*/ |
| 1007 | |
| 1008 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_break_type_to_str(int type) |
| 1009 | { |
| 1010 | const char *res; |
| 1011 | |
| 1012 | res = "unknown"; |
| 1013 | switch (type) |
| 1014 | { |
| 1015 | case V150_1_BREAK_TYPE_NOT_APPLICABLE: |
| 1016 | res = "Non applicable"; |
| 1017 | break; |
| 1018 | case V150_1_BREAK_TYPE_DESTRUCTIVE_EXPEDITED: |
| 1019 | res = "Destructive, expedited"; |
| 1020 | break; |
| 1021 | case V150_1_BREAK_TYPE_NON_DESTRUCTIVE_EXPEDITED: |
| 1022 | res = "Non-destructive, expedited"; |
| 1023 | break; |
| 1024 | case V150_1_BREAK_TYPE_NON_DESTRUCTIVE_NON_EXPEDITED: |
| 1025 | res = "Non-destructive, non-expedited"; |
| 1026 | break; |
| 1027 | } |
| 1028 | /*endswitch*/ |
| 1029 | return res; |
| 1030 | } |
| 1031 | /*- End of function --------------------------------------------------------*/ |
| 1032 | |
| 1033 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_state_to_str(int state) |
| 1034 | { |
| 1035 | const char *res; |
| 1036 | |
| 1037 | res = "unknown"; |
| 1038 | switch (state) |
| 1039 | { |
| 1040 | case V150_1_STATE_IDLE: |
| 1041 | res = "Idle"; |
| 1042 | break; |
| 1043 | case V150_1_STATE_INITED: |
| 1044 | res = "Inited"; |
| 1045 | break; |
| 1046 | case V150_1_STATE_PHYSUP: |
| 1047 | res = "Physically up"; |
| 1048 | break; |
| 1049 | case V150_1_STATE_CONNECTED: |
| 1050 | res = "Connected"; |
| 1051 | break; |
| 1052 | } |
| 1053 | /*endswitch*/ |
| 1054 | return res; |
| 1055 | } |
| 1056 | /*- End of function --------------------------------------------------------*/ |
| 1057 | |
| 1058 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_status_reason_to_str(int status) |
| 1059 | { |
| 1060 | const char *res; |
| 1061 | |
| 1062 | res = "unknown"; |
| 1063 | switch (status) |
| 1064 | { |
| 1065 | case V150_1_STATUS_REASON_NULL: |
| 1066 | res = "NULL"; |
| 1067 | break; |
| 1068 | case V150_1_STATUS_REASON_MEDIA_STATE_CHANGED: |
| 1069 | res = "media state changed"; |
| 1070 | break; |
| 1071 | case V150_1_STATUS_REASON_CONNECTION_STATE_CHANGED: |
| 1072 | res = "connection state changed"; |
| 1073 | break; |
| 1074 | case V150_1_STATUS_REASON_DATA_FORMAT_CHANGED: |
| 1075 | res = "format changed"; |
| 1076 | break; |
| 1077 | case V150_1_STATUS_REASON_BREAK_RECEIVED: |
| 1078 | res = "break received"; |
| 1079 | break; |
| 1080 | case V150_1_STATUS_REASON_RATE_RETRAIN_RECEIVED: |
| 1081 | res = "retrain request received"; |
| 1082 | break; |
| 1083 | case V150_1_STATUS_REASON_RATE_RENEGOTIATION_RECEIVED: |
| 1084 | res = "rate renegotiation received"; |
| 1085 | break; |
| 1086 | case V150_1_STATUS_REASON_BUSY_CHANGED: |
| 1087 | res = "busy changed"; |
| 1088 | break; |
| 1089 | case V150_1_STATUS_REASON_CONNECTION_STATE_PHYSUP: |
| 1090 | res = "physically up"; |
| 1091 | break; |
| 1092 | case V150_1_STATUS_REASON_CONNECTION_STATE_CONNECTED: |
| 1093 | res = "connected"; |
| 1094 | break; |
| 1095 | } |
| 1096 | /*endswitch*/ |
| 1097 | return res; |
| 1098 | } |
| 1099 | /*- End of function --------------------------------------------------------*/ |
| 1100 | |
| 1101 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_jm_category_to_str(int category) |
| 1102 | { |
| 1103 | const char *res; |
| 1104 | |
| 1105 | res = "unknown"; |
| 1106 | switch (category) |
| 1107 | { |
| 1108 | case V150_1_JM_CATEGORY_ID_PROTOCOLS: |
| 1109 | res = "protocols"; |
| 1110 | break; |
| 1111 | case V150_1_JM_CATEGORY_ID_CALL_FUNCTION_1: |
| 1112 | res = "call function 1"; |
| 1113 | break; |
| 1114 | case V150_1_JM_CATEGORY_ID_MODULATION_MODES: |
| 1115 | res = "modulation modes"; |
| 1116 | break; |
| 1117 | case V150_1_JM_CATEGORY_ID_PSTN_ACCESS: |
| 1118 | res = "PSTN access"; |
| 1119 | break; |
| 1120 | case V150_1_JM_CATEGORY_ID_PCM_MODEM_AVAILABILITY: |
| 1121 | res = "PCM modem availability"; |
| 1122 | break; |
| 1123 | case V150_1_JM_CATEGORY_ID_EXTENSION: |
| 1124 | res = "extension"; |
| 1125 | break; |
| 1126 | } |
| 1127 | /*endswitch*/ |
| 1128 | return res; |
| 1129 | } |
| 1130 | /*- End of function --------------------------------------------------------*/ |
| 1131 | |
| 1132 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_jm_info_modulation_to_str(int modulation) |
| 1133 | { |
| 1134 | const char *res; |
| 1135 | |
| 1136 | res = "unknown"; |
| 1137 | switch (modulation) |
| 1138 | { |
| 1139 | case V150_1_JM_MODULATION_MODE_V34_AVAILABLE: |
| 1140 | res = "V.34"; |
| 1141 | break; |
| 1142 | case V150_1_JM_MODULATION_MODE_V34_HALF_DUPLEX_AVAILABLE: |
| 1143 | res = "V.34 half-duplex"; |
| 1144 | break; |
| 1145 | case V150_1_JM_MODULATION_MODE_V32_V32bis_AVAILABLE: |
| 1146 | res = "V.32bis/V,32"; |
| 1147 | break; |
| 1148 | case V150_1_JM_MODULATION_MODE_V22_V22bis_AVAILABLE: |
| 1149 | res = "V.22bis/V.22"; |
| 1150 | break; |
| 1151 | case V150_1_JM_MODULATION_MODE_V17_AVAILABLE: |
| 1152 | res = "V.17"; |
| 1153 | break; |
| 1154 | case V150_1_JM_MODULATION_MODE_V29_AVAILABLE: |
| 1155 | res = "V.29"; |
| 1156 | break; |
| 1157 | case V150_1_JM_MODULATION_MODE_V27ter_AVAILABLE: |
| 1158 | res = "V.27ter"; |
| 1159 | break; |
| 1160 | case V150_1_JM_MODULATION_MODE_V26ter_AVAILABLE: |
| 1161 | res = "V.26ter"; |
| 1162 | break; |
| 1163 | case V150_1_JM_MODULATION_MODE_V26bis_AVAILABLE: |
| 1164 | res = "V.26bis"; |
| 1165 | break; |
| 1166 | case V150_1_JM_MODULATION_MODE_V23_AVAILABLE: |
| 1167 | res = "V.23"; |
| 1168 | break; |
| 1169 | case V150_1_JM_MODULATION_MODE_V23_HALF_DUPLEX_AVAILABLE: |
| 1170 | res = "V.23 half-duplex"; |
| 1171 | break; |
| 1172 | case V150_1_JM_MODULATION_MODE_V21_AVAILABLE: |
| 1173 | res = "V.21"; |
| 1174 | break; |
| 1175 | } |
| 1176 | /*endswitch*/ |
| 1177 | return res; |
| 1178 | } |
| 1179 | /*- End of function --------------------------------------------------------*/ |
| 1180 | |
| 1181 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_signal_to_str(int modulation) |
| 1182 | { |
| 1183 | const char *res; |
| 1184 | |
| 1185 | res = "unknown"; |
| 1186 | switch (modulation) |
| 1187 | { |
| 1188 | case V150_1_SIGNAL_TONE_2100HZ: |
| 1189 | res = "2100Hz detected"; |
| 1190 | break; |
| 1191 | case V150_1_SIGNAL_TONE_2225HZ: |
| 1192 | res = "2225Hz detected"; |
| 1193 | break; |
| 1194 | case V150_1_SIGNAL_ANS: |
| 1195 | res = "V.25 ANS detected"; |
| 1196 | break; |
| 1197 | case V150_1_SIGNAL_ANS_PR: |
| 1198 | res = "V.25 ANS reversal detected"; |
| 1199 | break; |
| 1200 | case V150_1_SIGNAL_ANSAM: |
| 1201 | res = "V.8 ANSam detected"; |
| 1202 | break; |
| 1203 | case V150_1_SIGNAL_ANSAM_PR: |
| 1204 | res = "V.8 ANSam reversal detected"; |
| 1205 | break; |
| 1206 | case V150_1_SIGNAL_CI: |
| 1207 | res = "V.8 CI detected"; |
| 1208 | break; |
| 1209 | case V150_1_SIGNAL_CM: |
| 1210 | res = "V.8 CM detected"; |
| 1211 | break; |
| 1212 | case V150_1_SIGNAL_JM: |
| 1213 | res = "V.8 JM detected"; |
| 1214 | break; |
| 1215 | case V150_1_SIGNAL_V21_LOW: |
| 1216 | res = "V.21 low channel detected"; |
| 1217 | break; |
| 1218 | case V150_1_SIGNAL_V21_HIGH: |
| 1219 | res = "V.21 high channel detected"; |
| 1220 | break; |
| 1221 | case V150_1_SIGNAL_V23_LOW: |
| 1222 | res = "V.23 low channel detected"; |
| 1223 | break; |
| 1224 | case V150_1_SIGNAL_V23_HIGH: |
| 1225 | res = "V.23 high channel detected"; |
| 1226 | break; |
| 1227 | case V150_1_SIGNAL_SB1: |
| 1228 | res = "V.22bis scrambled ones detected"; |
| 1229 | break; |
| 1230 | case V150_1_SIGNAL_USB1: |
| 1231 | res = "V.22bis unscrambled ones detected"; |
| 1232 | break; |
| 1233 | case V150_1_SIGNAL_S1: |
| 1234 | res = "V.22bis S1 detected"; |
| 1235 | break; |
| 1236 | case V150_1_SIGNAL_AA: |
| 1237 | res = "V.32/V.32bis AA detected"; |
| 1238 | break; |
| 1239 | case V150_1_SIGNAL_AC: |
| 1240 | res = "V.32/V.32bis AC detected"; |
| 1241 | break; |
| 1242 | case V150_1_SIGNAL_CALL_DISCRIMINATION_TIMEOUT: |
| 1243 | res = "Call discrimination time-out"; |
| 1244 | break; |
| 1245 | case V150_1_SIGNAL_UNKNOWN: |
| 1246 | res = "unrecognised signal detected"; |
| 1247 | break; |
| 1248 | case V150_1_SIGNAL_SILENCE: |
| 1249 | res = "silence detected"; |
| 1250 | break; |
| 1251 | case V150_1_SIGNAL_ABORT: |
| 1252 | res = "SPE has initiated an abort request"; |
| 1253 | break; |
| 1254 | |
| 1255 | case V150_1_SIGNAL_ANS_GEN: |
| 1256 | res = "Generate V.25 ANS"; |
| 1257 | break; |
| 1258 | case V150_1_SIGNAL_ANS_PR_GEN: |
| 1259 | res = "Generate V.25 ANS reversal"; |
| 1260 | break; |
| 1261 | case V150_1_SIGNAL_ANSAM_GEN: |
| 1262 | res = "Generate V.8 ANSam"; |
| 1263 | break; |
| 1264 | case V150_1_SIGNAL_ANSAM_PR_GEN: |
| 1265 | res = "Generate V.8 ANSam reversal"; |
| 1266 | break; |
| 1267 | case V150_1_SIGNAL_2225HZ_GEN: |
| 1268 | res = "Generate 2225Hz"; |
| 1269 | break; |
| 1270 | case V150_1_SIGNAL_CONCEAL_MODEM: |
| 1271 | res = "Block modem signal"; |
| 1272 | break; |
| 1273 | case V150_1_SIGNAL_BLOCK_2100HZ_TONE: |
| 1274 | res = "Block 2100Hz"; |
| 1275 | break; |
| 1276 | case V150_1_SIGNAL_AUTOMODE_ENABLE: |
| 1277 | res = "Enable automode"; |
| 1278 | break; |
| 1279 | |
| 1280 | case V150_1_SIGNAL_AUDIO_GEN: |
| 1281 | res = "Send audio state"; |
| 1282 | break; |
| 1283 | case V150_1_SIGNAL_FAX_RELAY_GEN: |
| 1284 | res = "Send fax relay state"; |
| 1285 | break; |
| 1286 | case V150_1_SIGNAL_INDETERMINATE_GEN: |
| 1287 | res = "Send indeterminate state"; |
| 1288 | break; |
| 1289 | case V150_1_SIGNAL_MODEM_RELAY_GEN: |
| 1290 | res = "Send modem relay state"; |
| 1291 | break; |
| 1292 | case V150_1_SIGNAL_TEXT_RELAY_GEN: |
| 1293 | res = "Send text relay state"; |
| 1294 | break; |
| 1295 | case V150_1_SIGNAL_VBD_GEN: |
| 1296 | res = "Send VBD state"; |
| 1297 | break; |
| 1298 | case V150_1_SIGNAL_RFC4733_ANS_GEN: |
| 1299 | res = "Send RFC4733 ANS"; |
| 1300 | break; |
| 1301 | case V150_1_SIGNAL_RFC4733_ANS_PR_GEN: |
| 1302 | res = "Send RFC4733 ANS reversal"; |
| 1303 | break; |
| 1304 | case V150_1_SIGNAL_RFC4733_ANSAM_GEN: |
| 1305 | res = "Send RFC4733 ANSam"; |
| 1306 | break; |
| 1307 | case V150_1_SIGNAL_RFC4733_ANSAM_PR_GEN: |
| 1308 | res = "Send RFC4733 ANSam reversal"; |
| 1309 | break; |
| 1310 | case V150_1_SIGNAL_RFC4733_TONE_GEN: |
| 1311 | res = "Send RFC4733 tone"; |
| 1312 | break; |
| 1313 | |
| 1314 | case V150_1_SIGNAL_AUDIO: |
| 1315 | res = "Audio state detected"; |
| 1316 | break; |
| 1317 | case V150_1_SIGNAL_FAX_RELAY: |
| 1318 | res = "Facsimile relay state detected"; |
| 1319 | break; |
| 1320 | case V150_1_SIGNAL_INDETERMINATE: |
| 1321 | res = "Indeterminate state detected"; |
| 1322 | break; |
| 1323 | case V150_1_SIGNAL_MODEM_RELAY: |
| 1324 | res = "Modem relay state detected"; |
| 1325 | break; |
| 1326 | case V150_1_SIGNAL_TEXT_RELAY: |
| 1327 | res = "Text relay state detected"; |
| 1328 | break; |
| 1329 | case V150_1_SIGNAL_VBD: |
| 1330 | res = "VBD state detected"; |
| 1331 | break; |
| 1332 | case V150_1_SIGNAL_RFC4733_ANS: |
| 1333 | res = "RFC4733 ANS event detected"; |
| 1334 | break; |
| 1335 | case V150_1_SIGNAL_RFC4733_ANS_PR: |
| 1336 | res = "RFC4733 ANS reversal detected"; |
| 1337 | break; |
| 1338 | case V150_1_SIGNAL_RFC4733_ANSAM: |
| 1339 | res = "RFC4733 ANSam detected"; |
| 1340 | break; |
| 1341 | case V150_1_SIGNAL_RFC4733_ANSAM_PR: |
| 1342 | res = "RFC4733 ANSam reversal detected"; |
| 1343 | break; |
| 1344 | case V150_1_SIGNAL_RFC4733_TONE: |
| 1345 | res = "RFC4733 tone detected"; |
| 1346 | break; |
| 1347 | |
| 1348 | case V150_1_SIGNAL_AUDIO_STATE: |
| 1349 | res = "Audio"; |
| 1350 | break; |
| 1351 | case V150_1_SIGNAL_FAX_RELAY_STATE: |
| 1352 | res = "Fax relay"; |
| 1353 | break; |
| 1354 | case V150_1_SIGNAL_INDETERMINATE_STATE: |
| 1355 | res = "Indeterminate"; |
| 1356 | break; |
| 1357 | case V150_1_SIGNAL_MODEM_RELAY_STATE: |
| 1358 | res = "Modem relay"; |
| 1359 | break; |
| 1360 | case V150_1_SIGNAL_TEXT_RELAY_STATE: |
| 1361 | res = "Text relay"; |
| 1362 | break; |
| 1363 | case V150_1_SIGNAL_VBD_STATE: |
| 1364 | res = "VBD"; |
| 1365 | break; |
| 1366 | |
| 1367 | case V150_1_SIGNAL_CALL_DISCRIMINATION_TIMER_EXPIRED: |
| 1368 | res = "Call discrimination timer exposed"; |
| 1369 | break; |
| 1370 | } |
| 1371 | /*endswitch*/ |
| 1372 | return res; |
| 1373 | } |
| 1374 | /*- End of function --------------------------------------------------------*/ |
| 1375 | |
| 1376 | SPAN_DECLARE(const char *)__attribute__((visibility("default"))) const char * v150_1_media_state_to_str(int state) |
| 1377 | { |
| 1378 | const char *res; |
| 1379 | |
| 1380 | res = "unknown"; |
| 1381 | switch (state) |
| 1382 | { |
| 1383 | case V150_1_MEDIA_STATE_INITIAL_AUDIO: |
| 1384 | res = "Initial Audio"; |
| 1385 | break; |
| 1386 | case V150_1_MEDIA_STATE_VOICE_BAND_DATA: |
| 1387 | res = "Voice Band Data (VBD)"; |
| 1388 | break; |
| 1389 | case V150_1_MEDIA_STATE_MODEM_RELAY: |
| 1390 | res = "Modem Relay"; |
| 1391 | break; |
| 1392 | case V150_1_MEDIA_STATE_FAX_RELAY: |
| 1393 | res = "Fax Relay"; |
| 1394 | break; |
| 1395 | case V150_1_MEDIA_STATE_TEXT_RELAY: |
| 1396 | res = "Text Relay"; |
| 1397 | break; |
| 1398 | case V150_1_MEDIA_STATE_TEXT_PROBE: |
| 1399 | res = "Text Probe"; |
| 1400 | break; |
| 1401 | case V150_1_MEDIA_STATE_INDETERMINATE: |
| 1402 | res = "Indeterminate"; |
| 1403 | break; |
| 1404 | } |
| 1405 | /*endswitch*/ |
| 1406 | return res; |
| 1407 | } |
| 1408 | /*- End of function --------------------------------------------------------*/ |
| 1409 | |
| 1410 | static int status_report(v150_1_state_t *s, int reason) |
| 1411 | { |
| 1412 | v150_1_status_t report; |
| 1413 | |
| 1414 | report.reason = reason; |
| 1415 | switch (reason) |
| 1416 | { |
| 1417 | case V150_1_STATUS_REASON_MEDIA_STATE_CHANGED: |
| 1418 | report.types.media_state_change.local_state = s->local_media_state; |
| 1419 | report.types.media_state_change.remote_state = s->remote_media_state; |
| 1420 | break; |
| 1421 | case V150_1_STATUS_REASON_CONNECTION_STATE_CHANGED: |
| 1422 | report.types.connection_state_change.state = s->far.parms.connection_state; |
| 1423 | report.types.connection_state_change.cleardown_reason = s->far.parms.cleardown_reason; |
| 1424 | break; |
| 1425 | case V150_1_STATUS_REASON_CONNECTION_STATE_PHYSUP: |
| 1426 | report.types.physup_parameters.selmod = s->far.parms.selmod; |
| 1427 | report.types.physup_parameters.tdsr = s->far.parms.tdsr; |
| 1428 | report.types.physup_parameters.rdsr = s->far.parms.rdsr; |
| 1429 | |
| 1430 | report.types.physup_parameters.txsen = s->far.parms.txsen; |
| 1431 | report.types.physup_parameters.txsr = s->far.parms.txsr; |
| 1432 | report.types.physup_parameters.rxsen = s->far.parms.rxsen; |
| 1433 | report.types.physup_parameters.rxsr = s->far.parms.rxsr; |
| 1434 | break; |
| 1435 | case V150_1_STATUS_REASON_CONNECTION_STATE_CONNECTED: |
| 1436 | report.types.connect_parameters.selmod = s->far.parms.selmod; |
| 1437 | report.types.connect_parameters.tdsr = s->far.parms.tdsr; |
| 1438 | report.types.connect_parameters.rdsr = s->far.parms.rdsr; |
| 1439 | |
| 1440 | report.types.connect_parameters.selected_compression_direction = s->far.parms.selected_compression_direction; |
| 1441 | report.types.connect_parameters.selected_compression = s->far.parms.selected_compression; |
| 1442 | report.types.connect_parameters.selected_error_correction = s->far.parms.selected_error_correction; |
| 1443 | |
| 1444 | report.types.connect_parameters.compression_tx_dictionary_size = s->far.parms.compression_tx_dictionary_size; |
| 1445 | report.types.connect_parameters.compression_rx_dictionary_size = s->far.parms.compression_rx_dictionary_size; |
| 1446 | report.types.connect_parameters.compression_tx_string_length = s->far.parms.compression_tx_string_length; |
| 1447 | report.types.connect_parameters.compression_rx_string_length = s->far.parms.compression_rx_string_length; |
| 1448 | report.types.connect_parameters.compression_tx_history_size = s->far.parms.compression_tx_history_size; |
| 1449 | report.types.connect_parameters.compression_rx_history_size = s->far.parms.compression_rx_history_size; |
| 1450 | |
| 1451 | /* I_RAW-OCTET is always available. There is no selection flag for it. */ |
| 1452 | report.types.connect_parameters.i_raw_octet_available = true1; |
| 1453 | report.types.connect_parameters.i_raw_bit_available = s->far.parms.i_raw_bit_available; |
| 1454 | report.types.connect_parameters.i_frame_available = s->far.parms.i_frame_available; |
| 1455 | /* I_OCTET is an oddity, as you need to know in advance whether there will be a DLCI field |
| 1456 | present. So, functionally its really like 2 different types of message. */ |
| 1457 | report.types.connect_parameters.i_octet_with_dlci_available = s->far.parms.i_octet_with_dlci_available; |
| 1458 | report.types.connect_parameters.i_octet_without_dlci_available = s->far.parms.i_octet_without_dlci_available; |
| 1459 | report.types.connect_parameters.i_char_stat_available = s->far.parms.i_char_stat_available; |
| 1460 | report.types.connect_parameters.i_char_dyn_available = s->far.parms.i_char_dyn_available; |
| 1461 | /* Unlike I_OCTET, I_OCTET-CS is only defined without a DLCI field. */ |
| 1462 | report.types.connect_parameters.i_octet_cs_available = s->far.parms.i_octet_cs_available; |
| 1463 | report.types.connect_parameters.i_char_stat_cs_available = s->far.parms.i_char_stat_cs_available; |
| 1464 | report.types.connect_parameters.i_char_dyn_cs_available = s->far.parms.i_char_dyn_cs_available; |
| 1465 | break; |
| 1466 | case V150_1_STATUS_REASON_DATA_FORMAT_CHANGED: |
| 1467 | report.types.data_format_change.bits = 5 + ((s->far.parms.data_format_code >> 5) & 0x03); |
| 1468 | report.types.data_format_change.parity_code = (s->far.parms.data_format_code >> 2) & 0x07; |
| 1469 | report.types.data_format_change.stop_bits = 1 + (s->far.parms.data_format_code & 0x03); |
| 1470 | break; |
| 1471 | case V150_1_STATUS_REASON_BREAK_RECEIVED: |
| 1472 | report.types.break_received.source = s->far.break_source; |
| 1473 | report.types.break_received.type = s->far.break_type; |
| 1474 | report.types.break_received.duration = s->far.break_duration*10; |
| 1475 | break; |
| 1476 | case V150_1_STATUS_REASON_RATE_RETRAIN_RECEIVED: |
| 1477 | break; |
| 1478 | case V150_1_STATUS_REASON_RATE_RENEGOTIATION_RECEIVED: |
| 1479 | break; |
| 1480 | case V150_1_STATUS_REASON_BUSY_CHANGED: |
| 1481 | report.types.busy_change.local_busy = s->near.parms.busy; |
| 1482 | report.types.busy_change.far_busy = s->far.parms.busy; |
| 1483 | break; |
| 1484 | } |
| 1485 | /*endswitch*/ |
| 1486 | if (s->rx_status_report_handler) |
| 1487 | s->rx_status_report_handler(s->rx_status_report_user_data, &report); |
| 1488 | /*endif*/ |
| 1489 | return 0; |
| 1490 | } |
| 1491 | /*- End of function --------------------------------------------------------*/ |
| 1492 | |
| 1493 | static int send_spe_signal(v150_1_state_t *s, int signal) |
| 1494 | { |
| 1495 | span_log(&s->logging, SPAN_LOG_FLOW, "Signal to SPE %s\n", v150_1_signal_to_str(signal)); |
| 1496 | return 0; |
| 1497 | } |
| 1498 | /*- End of function --------------------------------------------------------*/ |
| 1499 | |
| 1500 | static int send_ip_signal(v150_1_state_t *s, int signal) |
| 1501 | { |
| 1502 | span_log(&s->logging, SPAN_LOG_FLOW, "Signal to IP %s\n", v150_1_signal_to_str(signal)); |
| 1503 | return 0; |
| 1504 | } |
| 1505 | /*- End of function --------------------------------------------------------*/ |
| 1506 | |
| 1507 | static int stop_timer(v150_1_state_t *s) |
| 1508 | { |
| 1509 | span_log(&s->logging, SPAN_LOG_FLOW, "Stop timer\n"); |
| 1510 | return 0; |
| 1511 | } |
| 1512 | /*- End of function --------------------------------------------------------*/ |
| 1513 | |
| 1514 | static int generic_macro(v150_1_state_t *s, int signal, int ric) |
| 1515 | { |
| 1516 | span_timestamp_t now; |
| 1517 | |
| 1518 | /* Figure 25/V.150.1 */ |
| 1519 | span_log(&s->logging, |
| 1520 | SPAN_LOG_FLOW, |
| 1521 | "IP signal %s(%s, %s)\n", |
| 1522 | v150_1_media_state_to_str(s->local_media_state), |
| 1523 | v150_1_signal_to_str(signal), |
| 1524 | v150_1_sse_moip_ric_to_str(ric)); |
| 1525 | if (s->local_media_state == s->remote_media_state) |
| 1526 | { |
| 1527 | /* Stop the call discrimination timer */ |
| 1528 | s->call_discrimination_timer = 0; |
| 1529 | update_call_discrimination_timer(s, s->call_discrimination_timer); |
| 1530 | } |
| 1531 | else |
| 1532 | { |
| 1533 | /* Start the call discrimination timer */ |
| 1534 | if (s->call_discrimination_timer == 0) |
| 1535 | { |
| 1536 | now = update_call_discrimination_timer(s, ~0); |
| 1537 | s->call_discrimination_timer = now + s->call_discrimination_timeout; |
| 1538 | update_call_discrimination_timer(s, s->call_discrimination_timer); |
| 1539 | } |
| 1540 | /*endif*/ |
| 1541 | } |
| 1542 | /*endif*/ |
| 1543 | return 0; |
| 1544 | } |
| 1545 | /*- End of function --------------------------------------------------------*/ |
| 1546 | |
| 1547 | static void update_media_states(v150_1_state_t *s, int local, int remote) |
| 1548 | { |
| 1549 | if (local != s->local_media_state || remote != s->remote_media_state) |
| 1550 | { |
| 1551 | s->remote_media_state = remote; |
| 1552 | s->local_media_state = local; |
| 1553 | status_report(s, V150_1_STATUS_REASON_MEDIA_STATE_CHANGED); |
| 1554 | } |
| 1555 | /*endif*/ |
| 1556 | } |
| 1557 | /*- End of function --------------------------------------------------------*/ |
| 1558 | |
| 1559 | static int v150_1_figures_26_to_31(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1560 | { |
| 1561 | /* Figure 26/V.150.1 to 31/V.150.1 */ |
| 1562 | switch (signal) |
| 1563 | { |
| 1564 | case V150_1_SIGNAL_TONE_2100HZ: |
| 1565 | if (s->cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED |
| 1566 | || |
| 1567 | s->cdscselect == V150_1_CDSCSELECT_MIXED) |
| 1568 | { |
| 1569 | update_media_states(s, V150_1_MEDIA_STATE_VOICE_BAND_DATA, s->remote_media_state); |
| 1570 | //send ANS or ANSam |
| 1571 | generic_macro(s, V150_1_SIGNAL_ANS, 0); |
| 1572 | } |
| 1573 | else |
| 1574 | { |
| 1575 | send_spe_signal(s, V150_1_SIGNAL_BLOCK_2100HZ_TONE); |
| 1576 | } |
| 1577 | /*endif*/ |
| 1578 | break; |
| 1579 | case V150_1_SIGNAL_ANS: |
| 1580 | if (s->cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED |
| 1581 | || |
| 1582 | s->cdscselect == V150_1_CDSCSELECT_MIXED) |
| 1583 | { |
| 1584 | update_media_states(s, V150_1_MEDIA_STATE_VOICE_BAND_DATA, s->remote_media_state); |
| 1585 | generic_macro(s, V150_1_SIGNAL_ANS, 0); |
| 1586 | } |
| 1587 | else |
| 1588 | { |
| 1589 | generic_macro(s, V150_1_SIGNAL_RFC4733_ANS_GEN, 0); |
| 1590 | send_spe_signal(s, V150_1_SIGNAL_CONCEAL_MODEM); |
| 1591 | } |
| 1592 | /*endif*/ |
| 1593 | break; |
| 1594 | case V150_1_SIGNAL_ANSAM: |
| 1595 | if (s->cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED |
| 1596 | || |
| 1597 | s->cdscselect == V150_1_CDSCSELECT_MIXED) |
| 1598 | { |
| 1599 | update_media_states(s, V150_1_MEDIA_STATE_VOICE_BAND_DATA, s->remote_media_state); |
| 1600 | generic_macro(s, V150_1_SIGNAL_ANSAM, 0); |
| 1601 | } |
| 1602 | else |
| 1603 | { |
| 1604 | generic_macro(s, V150_1_SIGNAL_RFC4733_ANSAM_GEN, 0); |
| 1605 | send_spe_signal(s, V150_1_SIGNAL_CONCEAL_MODEM); |
| 1606 | } |
| 1607 | /*endif*/ |
| 1608 | break; |
| 1609 | case V150_1_SIGNAL_RFC4733_ANS: |
| 1610 | send_spe_signal(s, V150_1_SIGNAL_ANS_GEN); |
| 1611 | send_spe_signal(s, V150_1_SIGNAL_CONCEAL_MODEM); |
| 1612 | break; |
| 1613 | case V150_1_SIGNAL_RFC4733_ANSAM: |
| 1614 | send_spe_signal(s, V150_1_SIGNAL_ANSAM_GEN); |
| 1615 | send_spe_signal(s, V150_1_SIGNAL_CONCEAL_MODEM); |
| 1616 | break; |
| 1617 | case V150_1_SIGNAL_RFC4733_ANS_PR: |
| 1618 | send_spe_signal(s, V150_1_SIGNAL_ANS_PR_GEN); |
| 1619 | send_spe_signal(s, V150_1_SIGNAL_CONCEAL_MODEM); |
| 1620 | break; |
| 1621 | case V150_1_SIGNAL_RFC4733_ANSAM_PR: |
| 1622 | send_spe_signal(s, V150_1_SIGNAL_ANSAM_PR_GEN); |
| 1623 | send_spe_signal(s, V150_1_SIGNAL_CONCEAL_MODEM); |
| 1624 | break; |
| 1625 | case V150_1_SIGNAL_ANS_PR: |
| 1626 | break; |
| 1627 | case V150_1_SIGNAL_ANSAM_PR: |
| 1628 | break; |
| 1629 | case V150_1_SIGNAL_UNKNOWN: |
| 1630 | case V150_1_SIGNAL_CALL_DISCRIMINATION_TIMEOUT: |
| 1631 | if (s->cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED |
| 1632 | || |
| 1633 | s->cdscselect == V150_1_CDSCSELECT_MIXED) |
| 1634 | { |
| 1635 | update_media_states(s, V150_1_MEDIA_STATE_VOICE_BAND_DATA, s->remote_media_state); |
| 1636 | generic_macro(s, signal, 0); |
| 1637 | } |
| 1638 | /*endif*/ |
| 1639 | break; |
| 1640 | case V150_1_SIGNAL_VBD: |
| 1641 | if (s->cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED |
| 1642 | || |
| 1643 | s->cdscselect == V150_1_CDSCSELECT_MIXED) |
| 1644 | { |
| 1645 | update_media_states(s, V150_1_MEDIA_STATE_VOICE_BAND_DATA, V150_1_MEDIA_STATE_VOICE_BAND_DATA); |
| 1646 | generic_macro(s, signal, 0); |
| 1647 | } |
| 1648 | else |
| 1649 | { |
| 1650 | update_media_states(s, V150_1_MEDIA_STATE_VOICE_BAND_DATA, s->remote_media_state); |
| 1651 | generic_macro(s, signal, 0); |
| 1652 | } |
| 1653 | /*endif*/ |
| 1654 | break; |
| 1655 | case V150_1_SIGNAL_MODEM_RELAY: |
| 1656 | span_log(&s->logging, SPAN_LOG_FLOW, "Modem relay signal %s\n", v150_1_signal_to_str(signal)); |
| 1657 | break; |
| 1658 | case V150_1_SIGNAL_CM: |
| 1659 | span_log(&s->logging, SPAN_LOG_FLOW, "SPE signal %s\n", v150_1_signal_to_str(signal)); |
| 1660 | if (s->cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED |
| 1661 | || |
| 1662 | s->cdscselect == V150_1_CDSCSELECT_MIXED) |
| 1663 | { |
| 1664 | update_media_states(s, V150_1_MEDIA_STATE_VOICE_BAND_DATA, V150_1_MEDIA_STATE_MODEM_RELAY); |
| 1665 | generic_macro(s, V150_1_SIGNAL_MODEM_RELAY_GEN, V150_1_SSE_MOIP_RIC_V8_CM); |
| 1666 | } |
| 1667 | else |
| 1668 | { |
| 1669 | update_media_states(s, V150_1_MEDIA_STATE_MODEM_RELAY, V150_1_MEDIA_STATE_MODEM_RELAY); |
| 1670 | generic_macro(s, V150_1_SIGNAL_MODEM_RELAY_GEN, V150_1_SSE_MOIP_RIC_V8_CM); |
| 1671 | } |
| 1672 | /*endif*/ |
| 1673 | break; |
| 1674 | /*supported modulations */ |
| 1675 | default: |
| 1676 | span_log(&s->logging, SPAN_LOG_FLOW, "Unexpected signal %s\n", v150_1_signal_to_str(signal)); |
| 1677 | break; |
| 1678 | } |
| 1679 | /*endswitch*/ |
| 1680 | return 0; |
| 1681 | } |
| 1682 | /*- End of function --------------------------------------------------------*/ |
| 1683 | |
| 1684 | static int v150_1_figure_32(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1685 | { |
| 1686 | /* Figure 32/V.150.1 */ |
| 1687 | switch (signal) |
| 1688 | { |
| 1689 | case V150_1_SIGNAL_AUDIO: |
| 1690 | //send SSE p' |
| 1691 | generic_macro(s, signal, 0); |
| 1692 | break; |
| 1693 | default: |
| 1694 | span_log(&s->logging, SPAN_LOG_FLOW, "Unexpected signal %s\n", v150_1_signal_to_str(signal)); |
| 1695 | break; |
| 1696 | } |
| 1697 | /*endswitch*/ |
| 1698 | return 0; |
| 1699 | } |
| 1700 | /*- End of function --------------------------------------------------------*/ |
| 1701 | |
| 1702 | static int v150_1_figure_33(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1703 | { |
| 1704 | /* Figure 33/V.150.1 */ |
| 1705 | switch (signal) |
| 1706 | { |
| 1707 | case V150_1_SIGNAL_AUDIO: |
| 1708 | //send SSE p' |
| 1709 | generic_macro(s, signal, 0); |
| 1710 | break; |
| 1711 | default: |
| 1712 | span_log(&s->logging, SPAN_LOG_FLOW, "Unexpected signal %s\n", v150_1_signal_to_str(signal)); |
| 1713 | break; |
| 1714 | } |
| 1715 | /*endswitch*/ |
| 1716 | return 0; |
| 1717 | } |
| 1718 | /*- End of function --------------------------------------------------------*/ |
| 1719 | |
| 1720 | static int v150_1_figure_34(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1721 | { |
| 1722 | /* Figure 34/V.150.1 */ |
| 1723 | switch (signal) |
| 1724 | { |
| 1725 | case V150_1_SIGNAL_AUDIO: |
| 1726 | //send SSE p' |
| 1727 | generic_macro(s, signal, 0); |
| 1728 | break; |
| 1729 | case V150_1_SIGNAL_MODEM_RELAY: |
| 1730 | stop_timer(s); |
| 1731 | break; |
| 1732 | case V150_1_SIGNAL_VBD: |
| 1733 | //send SSE RC |
| 1734 | generic_macro(s, signal, 0); |
| 1735 | break; |
| 1736 | default: |
| 1737 | span_log(&s->logging, SPAN_LOG_FLOW, "Unexpected signal %s\n", v150_1_signal_to_str(signal)); |
| 1738 | break; |
| 1739 | } |
| 1740 | /*endswitch*/ |
| 1741 | return 0; |
| 1742 | } |
| 1743 | /*- End of function --------------------------------------------------------*/ |
| 1744 | |
| 1745 | static int v150_1_figure_35(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1746 | { |
| 1747 | /* Figure 35/V.150.1 */ |
| 1748 | switch (signal) |
| 1749 | { |
| 1750 | case V150_1_SIGNAL_JM: |
| 1751 | if (s->cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED |
| 1752 | || |
| 1753 | s->cdscselect == V150_1_CDSCSELECT_MIXED) |
| 1754 | { |
| 1755 | } |
| 1756 | else |
| 1757 | { |
| 1758 | } |
| 1759 | /*endif*/ |
| 1760 | break; |
| 1761 | case V150_1_SIGNAL_VBD: |
| 1762 | update_media_states(s, s->local_media_state, V150_1_MEDIA_STATE_VOICE_BAND_DATA); |
| 1763 | break; |
| 1764 | default: |
| 1765 | span_log(&s->logging, SPAN_LOG_FLOW, "Unexpected signal %s\n", v150_1_signal_to_str(signal)); |
| 1766 | break; |
| 1767 | } |
| 1768 | /*endswitch*/ |
| 1769 | return 0; |
| 1770 | } |
| 1771 | /*- End of function --------------------------------------------------------*/ |
| 1772 | |
| 1773 | static int v150_1_figure_36(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1774 | { |
| 1775 | /* Figure 36/V.150.1 */ |
| 1776 | switch (signal) |
| 1777 | { |
| 1778 | case V150_1_SIGNAL_AUDIO: |
| 1779 | update_media_states(s, V150_1_MEDIA_STATE_INITIAL_AUDIO, V150_1_MEDIA_STATE_VOICE_BAND_DATA); |
| 1780 | break; |
| 1781 | case V150_1_SIGNAL_MODEM_RELAY: |
| 1782 | stop_timer(s); |
| 1783 | break; |
| 1784 | case V150_1_SIGNAL_VBD: |
| 1785 | stop_timer(s); |
| 1786 | update_media_states(s, V150_1_MEDIA_STATE_INITIAL_AUDIO, V150_1_MEDIA_STATE_VOICE_BAND_DATA); |
| 1787 | // send sse p' |
| 1788 | generic_macro(s, signal, 0); |
| 1789 | break; |
| 1790 | default: |
| 1791 | span_log(&s->logging, SPAN_LOG_FLOW, "Unexpected signal %s\n", v150_1_signal_to_str(signal)); |
| 1792 | break; |
| 1793 | } |
| 1794 | /*endswitch*/ |
| 1795 | return 0; |
| 1796 | } |
| 1797 | /*- End of function --------------------------------------------------------*/ |
| 1798 | |
| 1799 | static int v150_1_figure_37(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1800 | { |
| 1801 | /* Figure 37/V.150.1 */ |
| 1802 | switch (signal) |
| 1803 | { |
| 1804 | case V150_1_SIGNAL_AUDIO: |
| 1805 | update_media_states(s, V150_1_MEDIA_STATE_INITIAL_AUDIO, V150_1_MEDIA_STATE_INITIAL_AUDIO); |
| 1806 | break; |
| 1807 | case V150_1_SIGNAL_MODEM_RELAY: |
| 1808 | stop_timer(s); |
| 1809 | break; |
| 1810 | case V150_1_SIGNAL_VBD: |
| 1811 | stop_timer(s); |
| 1812 | break; |
| 1813 | default: |
| 1814 | span_log(&s->logging, SPAN_LOG_FLOW, "Unexpected signal %s\n", v150_1_signal_to_str(signal)); |
| 1815 | break; |
| 1816 | } |
| 1817 | /*endswitch*/ |
| 1818 | return 0; |
| 1819 | } |
| 1820 | /*- End of function --------------------------------------------------------*/ |
| 1821 | |
| 1822 | static int v150_1_figure_38(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1823 | { |
| 1824 | /* Figure 38/V.150.1 */ |
| 1825 | switch (signal) |
| 1826 | { |
| 1827 | case V150_1_SIGNAL_AUDIO: |
| 1828 | update_media_states(s, V150_1_MEDIA_STATE_INITIAL_AUDIO, V150_1_MEDIA_STATE_INITIAL_AUDIO); |
| 1829 | break; |
| 1830 | case V150_1_SIGNAL_VBD: |
| 1831 | stop_timer(s); |
| 1832 | break; |
| 1833 | default: |
| 1834 | span_log(&s->logging, SPAN_LOG_FLOW, "Unexpected signal %s\n", v150_1_signal_to_str(signal)); |
| 1835 | break; |
| 1836 | } |
| 1837 | /*endswitch*/ |
| 1838 | return 0; |
| 1839 | } |
| 1840 | /*- End of function --------------------------------------------------------*/ |
| 1841 | |
| 1842 | static int v150_1_figure_39(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1843 | { |
| 1844 | /* Figure 39/V.150.1 */ |
| 1845 | switch (signal) |
| 1846 | { |
| 1847 | case V150_1_SIGNAL_MODEM_RELAY: |
| 1848 | break; |
| 1849 | case V150_1_SIGNAL_CM: |
| 1850 | break; |
| 1851 | case V150_1_SIGNAL_RFC4733_ANS: |
| 1852 | send_spe_signal(s, V150_1_SIGNAL_ANS_GEN); |
| 1853 | break; |
| 1854 | case V150_1_SIGNAL_RFC4733_ANSAM: |
| 1855 | send_spe_signal(s, V150_1_SIGNAL_ANSAM_GEN); |
| 1856 | break; |
| 1857 | case V150_1_SIGNAL_RFC4733_ANS_PR: |
| 1858 | send_spe_signal(s, V150_1_SIGNAL_ANS_GEN); |
| 1859 | break; |
| 1860 | case V150_1_SIGNAL_RFC4733_ANSAM_PR: |
| 1861 | send_spe_signal(s, V150_1_SIGNAL_ANSAM_GEN); |
| 1862 | break; |
| 1863 | case V150_1_SIGNAL_ANS: |
| 1864 | if (s->rfc4733_preferred) |
| 1865 | { |
| 1866 | generic_macro(s, V150_1_SIGNAL_RFC4733_ANS_GEN, 0); |
| 1867 | } |
| 1868 | else |
| 1869 | { |
| 1870 | /* Pass the audio through */ |
| 1871 | } |
| 1872 | /*endif*/ |
| 1873 | break; |
| 1874 | case V150_1_SIGNAL_ANSAM: |
| 1875 | if (s->rfc4733_preferred) |
| 1876 | { |
| 1877 | generic_macro(s, V150_1_SIGNAL_RFC4733_ANSAM_GEN, 0); |
| 1878 | } |
| 1879 | else |
| 1880 | { |
| 1881 | /* Pass the audio through */ |
| 1882 | } |
| 1883 | /*endif*/ |
| 1884 | break; |
| 1885 | case V150_1_SIGNAL_ANS_PR: |
| 1886 | if (s->rfc4733_preferred) |
| 1887 | { |
| 1888 | generic_macro(s, V150_1_SIGNAL_RFC4733_ANS_PR_GEN, 0); |
| 1889 | } |
| 1890 | else |
| 1891 | { |
| 1892 | /* Pass the audio through */ |
| 1893 | } |
| 1894 | /*endif*/ |
| 1895 | break; |
| 1896 | case V150_1_SIGNAL_ANSAM_PR: |
| 1897 | if (s->rfc4733_preferred) |
| 1898 | { |
| 1899 | generic_macro(s, V150_1_SIGNAL_RFC4733_ANSAM_PR_GEN, 0); |
| 1900 | } |
| 1901 | else |
| 1902 | { |
| 1903 | /* Pass the audio through */ |
| 1904 | } |
| 1905 | /*endif*/ |
| 1906 | break; |
| 1907 | default: |
| 1908 | span_log(&s->logging, SPAN_LOG_FLOW, "Unexpected signal %s\n", v150_1_signal_to_str(signal)); |
| 1909 | break; |
| 1910 | } |
| 1911 | /*endswitch*/ |
| 1912 | return 0; |
| 1913 | } |
| 1914 | /*- End of function --------------------------------------------------------*/ |
| 1915 | |
| 1916 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_state_machine(v150_1_state_t *s, int signal, const uint8_t *msg, int len) |
| 1917 | { |
| 1918 | span_log(&s->logging, |
| 1919 | SPAN_LOG_FLOW, |
| 1920 | "State machine - %s %s %s\n", |
| 1921 | v150_1_media_state_to_str(s->local_media_state), |
| 1922 | v150_1_media_state_to_str(s->remote_media_state), |
| 1923 | v150_1_signal_to_str(signal)); |
| 1924 | /* Figure 40/V.150.1, leading out to the other SDL figures */ |
| 1925 | switch (signal) |
| 1926 | { |
| 1927 | case V150_1_SIGNAL_SILENCE: |
| 1928 | if (s->local_media_state != V150_1_MEDIA_STATE_INITIAL_AUDIO |
| 1929 | || |
| 1930 | s->remote_media_state != V150_1_MEDIA_STATE_INITIAL_AUDIO) |
| 1931 | { |
| 1932 | s->remote_media_state = V150_1_MEDIA_STATE_INDETERMINATE; |
| 1933 | s->local_media_state = V150_1_MEDIA_STATE_INITIAL_AUDIO; |
| 1934 | status_report(s, V150_1_STATUS_REASON_MEDIA_STATE_CHANGED); |
| 1935 | generic_macro(s, signal, 0); |
| 1936 | } |
| 1937 | /*endif*/ |
| 1938 | break; |
| 1939 | case V150_1_SIGNAL_ABORT: |
| 1940 | s->remote_media_state = V150_1_MEDIA_STATE_INDETERMINATE; |
| 1941 | s->local_media_state = V150_1_MEDIA_STATE_INITIAL_AUDIO; |
| 1942 | status_report(s, V150_1_STATUS_REASON_MEDIA_STATE_CHANGED); |
| 1943 | generic_macro(s, signal, 0); |
| 1944 | break; |
| 1945 | case V150_1_SIGNAL_CALL_DISCRIMINATION_TIMER_EXPIRED: |
| 1946 | /* Time to give up with negotiation, and go with the flow */ |
| 1947 | s->remote_media_state = V150_1_MEDIA_STATE_INDETERMINATE; |
| 1948 | s->local_media_state = V150_1_MEDIA_STATE_INITIAL_AUDIO; |
| 1949 | status_report(s, V150_1_STATUS_REASON_MEDIA_STATE_CHANGED); |
| 1950 | break; |
| 1951 | default: |
| 1952 | switch (s->local_media_state) |
| 1953 | { |
| 1954 | case V150_1_MEDIA_STATE_INDETERMINATE: |
| 1955 | switch (s->remote_media_state) |
| 1956 | { |
| 1957 | case V150_1_MEDIA_STATE_INDETERMINATE: |
| 1958 | break; |
| 1959 | case V150_1_MEDIA_STATE_INITIAL_AUDIO: |
| 1960 | break; |
| 1961 | case V150_1_MEDIA_STATE_VOICE_BAND_DATA: |
| 1962 | break; |
| 1963 | case V150_1_MEDIA_STATE_FAX_RELAY: |
| 1964 | break; |
| 1965 | case V150_1_MEDIA_STATE_MODEM_RELAY: |
| 1966 | break; |
| 1967 | case V150_1_MEDIA_STATE_TEXT_RELAY: |
| 1968 | break; |
| 1969 | } |
| 1970 | /*endswitch*/ |
| 1971 | break; |
| 1972 | case V150_1_MEDIA_STATE_INITIAL_AUDIO: |
| 1973 | switch (s->remote_media_state) |
| 1974 | { |
| 1975 | case V150_1_MEDIA_STATE_INDETERMINATE: |
| 1976 | break; |
| 1977 | case V150_1_MEDIA_STATE_INITIAL_AUDIO: |
| 1978 | v150_1_figures_26_to_31(s, signal, msg, len); |
| 1979 | break; |
| 1980 | case V150_1_MEDIA_STATE_VOICE_BAND_DATA: |
| 1981 | v150_1_figure_33(s, signal, msg, len); |
| 1982 | break; |
| 1983 | case V150_1_MEDIA_STATE_FAX_RELAY: |
| 1984 | break; |
| 1985 | case V150_1_MEDIA_STATE_MODEM_RELAY: |
| 1986 | v150_1_figure_32(s, signal, msg, len); |
| 1987 | break; |
| 1988 | case V150_1_MEDIA_STATE_TEXT_RELAY: |
| 1989 | break; |
| 1990 | } |
| 1991 | /*endswitch*/ |
| 1992 | break; |
| 1993 | case V150_1_MEDIA_STATE_VOICE_BAND_DATA: |
| 1994 | switch (s->remote_media_state) |
| 1995 | { |
| 1996 | case V150_1_MEDIA_STATE_INDETERMINATE: |
| 1997 | break; |
| 1998 | case V150_1_MEDIA_STATE_INITIAL_AUDIO: |
| 1999 | v150_1_figure_37(s, signal, msg, len); |
| 2000 | break; |
| 2001 | case V150_1_MEDIA_STATE_VOICE_BAND_DATA: |
| 2002 | v150_1_figure_39(s, signal, msg, len); |
| 2003 | break; |
| 2004 | case V150_1_MEDIA_STATE_FAX_RELAY: |
| 2005 | break; |
| 2006 | case V150_1_MEDIA_STATE_MODEM_RELAY: |
| 2007 | v150_1_figure_38(s, signal, msg, len); |
| 2008 | break; |
| 2009 | case V150_1_MEDIA_STATE_TEXT_RELAY: |
| 2010 | break; |
| 2011 | } |
| 2012 | /*endswitch*/ |
| 2013 | break; |
| 2014 | case V150_1_MEDIA_STATE_FAX_RELAY: |
| 2015 | switch (s->remote_media_state) |
| 2016 | { |
| 2017 | case V150_1_MEDIA_STATE_INDETERMINATE: |
| 2018 | break; |
| 2019 | case V150_1_MEDIA_STATE_INITIAL_AUDIO: |
| 2020 | break; |
| 2021 | case V150_1_MEDIA_STATE_VOICE_BAND_DATA: |
| 2022 | break; |
| 2023 | case V150_1_MEDIA_STATE_FAX_RELAY: |
| 2024 | break; |
| 2025 | case V150_1_MEDIA_STATE_MODEM_RELAY: |
| 2026 | break; |
| 2027 | case V150_1_MEDIA_STATE_TEXT_RELAY: |
| 2028 | break; |
| 2029 | } |
| 2030 | /*endswitch*/ |
| 2031 | break; |
| 2032 | case V150_1_MEDIA_STATE_MODEM_RELAY: |
| 2033 | switch (s->remote_media_state) |
| 2034 | { |
| 2035 | case V150_1_MEDIA_STATE_INDETERMINATE: |
| 2036 | break; |
| 2037 | case V150_1_MEDIA_STATE_INITIAL_AUDIO: |
| 2038 | v150_1_figure_34(s, signal, msg, len); |
| 2039 | break; |
| 2040 | case V150_1_MEDIA_STATE_VOICE_BAND_DATA: |
| 2041 | v150_1_figure_36(s, signal, msg, len); |
| 2042 | break; |
| 2043 | case V150_1_MEDIA_STATE_FAX_RELAY: |
| 2044 | break; |
| 2045 | case V150_1_MEDIA_STATE_MODEM_RELAY: |
| 2046 | v150_1_figure_35(s, signal, msg, len); |
| 2047 | break; |
| 2048 | case V150_1_MEDIA_STATE_TEXT_RELAY: |
| 2049 | break; |
| 2050 | } |
| 2051 | /*endswitch*/ |
| 2052 | break; |
| 2053 | case V150_1_MEDIA_STATE_TEXT_RELAY: |
| 2054 | switch (s->remote_media_state) |
| 2055 | { |
| 2056 | case V150_1_MEDIA_STATE_INDETERMINATE: |
| 2057 | break; |
| 2058 | case V150_1_MEDIA_STATE_INITIAL_AUDIO: |
| 2059 | break; |
| 2060 | case V150_1_MEDIA_STATE_VOICE_BAND_DATA: |
| 2061 | break; |
| 2062 | case V150_1_MEDIA_STATE_FAX_RELAY: |
| 2063 | break; |
| 2064 | case V150_1_MEDIA_STATE_MODEM_RELAY: |
| 2065 | break; |
| 2066 | case V150_1_MEDIA_STATE_TEXT_RELAY: |
| 2067 | break; |
| 2068 | } |
| 2069 | /*endswitch*/ |
| 2070 | break; |
| 2071 | } |
| 2072 | /*endswitch*/ |
| 2073 | } |
| 2074 | /*endswitch*/ |
| 2075 | return 0; |
| 2076 | } |
| 2077 | /*- End of function --------------------------------------------------------*/ |
| 2078 | |
| 2079 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_bits_per_character(v150_1_state_t *s, int bits) |
| 2080 | { |
| 2081 | if (bits < 5 || bits > 8) |
| 2082 | return -1; |
| 2083 | /*endif*/ |
| 2084 | bits -= 5; |
| 2085 | s->near.parms.data_format_code &= 0x9F; |
| 2086 | s->near.parms.data_format_code |= ((bits << 5) & 0x60); |
| 2087 | return 0; |
| 2088 | } |
| 2089 | /*- End of function --------------------------------------------------------*/ |
| 2090 | |
| 2091 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_parity(v150_1_state_t *s, int mode) |
| 2092 | { |
| 2093 | s->near.parms.data_format_code &= 0xE3; |
| 2094 | s->near.parms.data_format_code |= ((mode << 2) & 0x1C); |
| 2095 | return 0; |
| 2096 | } |
| 2097 | /*- End of function --------------------------------------------------------*/ |
| 2098 | |
| 2099 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_stop_bits(v150_1_state_t *s, int bits) |
| 2100 | { |
| 2101 | if (bits < 1 || bits > 2) |
| 2102 | return -1; |
| 2103 | /*endif*/ |
| 2104 | bits -= 1; |
| 2105 | s->near.parms.data_format_code &= 0xFC; |
| 2106 | s->near.parms.data_format_code |= (bits & 0x03); |
| 2107 | return 0; |
| 2108 | } |
| 2109 | /*- End of function --------------------------------------------------------*/ |
| 2110 | |
| 2111 | static int select_info_msg_type(v150_1_state_t *s) |
| 2112 | { |
| 2113 | int i; |
| 2114 | |
| 2115 | /* Select the first available information message type we find in the preferences list */ |
| 2116 | for (i = 0; i < 10 && s->near.info_msg_preferences[i] >= 0; i++) |
| 2117 | { |
| 2118 | switch (s->near.info_msg_preferences[i]) |
| 2119 | { |
| 2120 | case V150_1_MSGID_I_RAW_OCTET: |
| 2121 | /* This is always supported */ |
| 2122 | s->near.info_stream_msg_id = s->near.info_msg_preferences[i]; |
| 2123 | return 0; |
| 2124 | case V150_1_MSGID_I_RAW_BIT: |
| 2125 | if (s->near.parms.i_raw_bit_available) |
| 2126 | { |
| 2127 | s->near.info_stream_msg_id = s->near.info_msg_preferences[i]; |
| 2128 | return 0; |
| 2129 | } |
| 2130 | /*endif*/ |
| 2131 | break; |
| 2132 | case V150_1_MSGID_I_OCTET: |
| 2133 | /* This is always supported */ |
| 2134 | s->near.info_stream_msg_id = s->near.info_msg_preferences[i]; |
| 2135 | return 0; |
| 2136 | case V150_1_MSGID_I_CHAR_STAT: |
| 2137 | if (s->near.parms.i_char_stat_available) |
| 2138 | { |
| 2139 | s->near.info_stream_msg_id = s->near.info_msg_preferences[i]; |
| 2140 | return 0; |
| 2141 | } |
| 2142 | /*endif*/ |
| 2143 | break; |
| 2144 | case V150_1_MSGID_I_CHAR_DYN: |
| 2145 | if (s->near.parms.i_char_dyn_available) |
| 2146 | { |
| 2147 | s->near.info_stream_msg_id = s->near.info_msg_preferences[i]; |
| 2148 | return 0; |
| 2149 | } |
| 2150 | /*endif*/ |
| 2151 | break; |
| 2152 | case V150_1_MSGID_I_FRAME: |
| 2153 | if (s->near.parms.i_frame_available) |
| 2154 | { |
| 2155 | s->near.info_stream_msg_id = s->near.info_msg_preferences[i]; |
| 2156 | return 0; |
| 2157 | } |
| 2158 | /*endif*/ |
| 2159 | break; |
| 2160 | case V150_1_MSGID_I_OCTET_CS: |
| 2161 | if (s->near.parms.i_octet_cs_available) |
| 2162 | { |
| 2163 | s->near.info_stream_msg_id = s->near.info_msg_preferences[i]; |
| 2164 | return 0; |
| 2165 | } |
| 2166 | /*endif*/ |
| 2167 | break; |
| 2168 | case V150_1_MSGID_I_CHAR_STAT_CS: |
| 2169 | if (s->near.parms.i_char_stat_cs_available) |
| 2170 | { |
| 2171 | s->near.info_stream_msg_id = s->near.info_msg_preferences[i]; |
| 2172 | return 0; |
| 2173 | } |
| 2174 | /*endif*/ |
| 2175 | break; |
| 2176 | case V150_1_MSGID_I_CHAR_DYN_CS: |
| 2177 | if (s->near.parms.i_char_dyn_cs_available) |
| 2178 | { |
| 2179 | s->near.info_stream_msg_id = s->near.info_msg_preferences[i]; |
| 2180 | return 0; |
| 2181 | } |
| 2182 | /*endif*/ |
| 2183 | break; |
| 2184 | default: |
| 2185 | s->near.info_stream_msg_id = -1; |
| 2186 | return -1; |
| 2187 | } |
| 2188 | /*endswitch*/ |
| 2189 | } |
| 2190 | /*endfor*/ |
| 2191 | s->near.info_stream_msg_id = -1; |
| 2192 | return -1; |
| 2193 | } |
| 2194 | /*- End of function --------------------------------------------------------*/ |
| 2195 | |
| 2196 | static void log_init(v150_1_state_t *s, v150_1_near_far_t *parms) |
| 2197 | { |
| 2198 | span_log(&s->logging, SPAN_LOG_FLOW, " Preferred non-error controlled Rx channel: %s\n", (parms->necrxch_option) ? "RSC" : "USC"); |
| 2199 | span_log(&s->logging, SPAN_LOG_FLOW, " Preferred error controlled Rx channel: %s\n", (parms->ecrxch_option) ? "USC" : "RSC"); |
| 2200 | span_log(&s->logging, SPAN_LOG_FLOW, " XID profile exchange %ssupported\n", (parms->xid_profile_exchange_supported) ? "" : "not "); |
| 2201 | span_log(&s->logging, SPAN_LOG_FLOW, " Asymmetric data types %ssupported\n", (parms->asymmetric_data_types_supported) ? "" : "not "); |
| 2202 | span_log(&s->logging, SPAN_LOG_FLOW, " I_RAW-CHAR supported\n"); |
| 2203 | span_log(&s->logging, SPAN_LOG_FLOW, " I_RAW-BIT %ssupported\n", (parms->i_raw_bit_supported) ? "" : "not "); |
| 2204 | span_log(&s->logging, SPAN_LOG_FLOW, " I_FRAME %ssupported\n", (parms->i_frame_supported) ? "" : "not "); |
| 2205 | span_log(&s->logging, SPAN_LOG_FLOW, " I_OCTET %s supported\n", (parms->dlci_supported) ? "(DLCI) " : "(no DLCI)"); |
| 2206 | span_log(&s->logging, SPAN_LOG_FLOW, " I_CHAR-STAT %ssupported\n", (parms->i_char_stat_supported) ? "" : "not "); |
| 2207 | span_log(&s->logging, SPAN_LOG_FLOW, " I_CHAR-DYN %ssupported\n", (parms->i_char_dyn_supported) ? "" : "not "); |
| 2208 | span_log(&s->logging, SPAN_LOG_FLOW, " I_OCTET-CS %ssupported\n", (parms->i_octet_cs_supported) ? "" : "not "); |
| 2209 | span_log(&s->logging, SPAN_LOG_FLOW, " I_CHAR-STAT-CS %ssupported\n", (parms->i_char_stat_cs_supported) ? "" : "not "); |
| 2210 | span_log(&s->logging, SPAN_LOG_FLOW, " I_CHAR-DYN-CS %ssupported\n", (parms->i_char_dyn_cs_supported) ? "" : "not "); |
| 2211 | } |
| 2212 | /*- End of function --------------------------------------------------------*/ |
| 2213 | |
| 2214 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_null(v150_1_state_t *s) |
| 2215 | { |
| 2216 | int res; |
| 2217 | uint8_t pkt[256]; |
| 2218 | |
| 2219 | res = -1; |
| 2220 | /* This isn't a real message. Its marked as reserved by the ITU-T in V.150.1 */ |
| 2221 | pkt[0] = V150_1_MSGID_NULL; |
| 2222 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, 1); |
| 2223 | span_log(&s->logging, SPAN_LOG_FLOW, "NULL sent\n"); |
| 2224 | return res; |
| 2225 | } |
| 2226 | /*- End of function --------------------------------------------------------*/ |
| 2227 | |
| 2228 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_init(v150_1_state_t *s) |
| 2229 | { |
| 2230 | int res; |
| 2231 | uint8_t i; |
| 2232 | uint8_t pkt[256]; |
| 2233 | |
| 2234 | res = -1; |
| 2235 | pkt[0] = V150_1_MSGID_INIT; |
| 2236 | /* At this stage we just tell the far end the things we support. */ |
| 2237 | i = 0; |
| 2238 | if (s->near.parms.necrxch_option) |
| 2239 | i |= 0x80; |
| 2240 | /*endif*/ |
| 2241 | if (s->near.parms.ecrxch_option) |
| 2242 | i |= 0x40; |
| 2243 | /*endif*/ |
| 2244 | if (s->near.parms.xid_profile_exchange_supported) |
| 2245 | i |= 0x20; |
| 2246 | /*endif*/ |
| 2247 | if (s->near.parms.asymmetric_data_types_supported) |
| 2248 | i |= 0x10; |
| 2249 | /*endif*/ |
| 2250 | if (s->near.parms.i_raw_bit_supported) |
| 2251 | i |= 0x08; |
| 2252 | /*endif*/ |
| 2253 | if (s->near.parms.i_frame_supported) |
| 2254 | i |= 0x04; |
| 2255 | /*endif*/ |
| 2256 | if (s->near.parms.i_char_stat_supported) |
| 2257 | i |= 0x02; |
| 2258 | /*endif*/ |
| 2259 | if (s->near.parms.i_char_dyn_supported) |
| 2260 | i |= 0x01; |
| 2261 | /*endif*/ |
| 2262 | pkt[1] = i; |
| 2263 | i = 0; |
| 2264 | if (s->near.parms.i_octet_cs_supported) |
| 2265 | i |= 0x80; |
| 2266 | /*endif*/ |
| 2267 | if (s->near.parms.i_char_stat_cs_supported) |
| 2268 | i |= 0x40; |
| 2269 | /*endif*/ |
| 2270 | if (s->near.parms.i_char_dyn_cs_supported) |
| 2271 | i |= 0x20; |
| 2272 | /*endif*/ |
| 2273 | pkt[2] = i; |
| 2274 | span_log(&s->logging, SPAN_LOG_FLOW, "Sending INIT\n"); |
| 2275 | log_init(s, &s->near.parms); |
| 2276 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, 3); |
| 2277 | if (res >= 0) |
| 2278 | { |
| 2279 | s->near.parms.connection_state = V150_1_STATE_INITED; |
| 2280 | if (s->far.parms.connection_state >= V150_1_STATE_INITED) |
| 2281 | { |
| 2282 | select_info_msg_type(s); |
| 2283 | s->joint_connection_state = V150_1_STATE_INITED; |
| 2284 | } |
| 2285 | /*endif*/ |
| 2286 | } |
| 2287 | /*endif*/ |
| 2288 | return res; |
| 2289 | } |
| 2290 | /*- End of function --------------------------------------------------------*/ |
| 2291 | |
| 2292 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_xid_xchg(v150_1_state_t *s) |
| 2293 | { |
| 2294 | int res; |
| 2295 | uint8_t i; |
| 2296 | uint8_t pkt[256]; |
| 2297 | |
| 2298 | res = -1; |
| 2299 | if (!s->far.parms.xid_profile_exchange_supported) |
| 2300 | return -1; |
| 2301 | /*endif*/ |
| 2302 | pkt[0] = V150_1_MSGID_XID_XCHG; |
| 2303 | pkt[1] = s->near.parms.ecp; |
| 2304 | i = 0; |
| 2305 | if (s->near.parms.v42bis_supported) |
| 2306 | i |= 0x80; |
| 2307 | /*endif*/ |
| 2308 | if (s->near.parms.v44_supported) |
| 2309 | i |= 0x40; |
| 2310 | /*endif*/ |
| 2311 | if (s->near.parms.mnp5_supported) |
| 2312 | i |= 0x20; |
| 2313 | /*endif*/ |
| 2314 | pkt[2] = i; |
| 2315 | if (s->near.parms.v42bis_supported) |
| 2316 | { |
| 2317 | pkt[3] = s->near.parms.v42bis_p0; |
| 2318 | put_net_unaligned_uint16(&pkt[4], s->near.parms.v42bis_p1); |
| 2319 | pkt[6] = s->near.parms.v42bis_p2; |
| 2320 | } |
| 2321 | else |
| 2322 | { |
| 2323 | memset(&pkt[3], 0, 4); |
| 2324 | } |
| 2325 | /*endif*/ |
| 2326 | if (s->near.parms.v44_supported) |
| 2327 | { |
| 2328 | pkt[7] = s->near.parms.v44_c0; |
| 2329 | pkt[8] = s->near.parms.v44_p0; |
| 2330 | put_net_unaligned_uint16(&pkt[9], s->near.parms.v44_p1t); |
| 2331 | put_net_unaligned_uint16(&pkt[11], s->near.parms.v44_p1r); |
| 2332 | pkt[13] = s->near.parms.v44_p2t; |
| 2333 | pkt[14] = s->near.parms.v44_p2r; |
| 2334 | put_net_unaligned_uint16(&pkt[15], s->near.parms.v44_p3t); |
| 2335 | put_net_unaligned_uint16(&pkt[17], s->near.parms.v44_p3r); |
| 2336 | } |
| 2337 | else |
| 2338 | { |
| 2339 | memset(&pkt[7], 0, 12); |
| 2340 | } |
| 2341 | /*endif*/ |
| 2342 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, 19); |
| 2343 | span_log(&s->logging, SPAN_LOG_FLOW, "XID xchg sent\n"); |
| 2344 | return res; |
| 2345 | } |
| 2346 | /*- End of function --------------------------------------------------------*/ |
| 2347 | |
| 2348 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_jm_info(v150_1_state_t *s) |
| 2349 | { |
| 2350 | int res; |
| 2351 | int i; |
| 2352 | int len; |
| 2353 | int bit; |
| 2354 | uint8_t pkt[256]; |
| 2355 | |
| 2356 | for (i = 0; i < 16; i++) |
| 2357 | { |
| 2358 | if (s->near.parms.jm_category_id_seen[i]) |
| 2359 | { |
| 2360 | span_log(&s->logging, |
| 2361 | SPAN_LOG_FLOW, |
| 2362 | " JM %s 0x%x\n", |
| 2363 | v150_1_jm_category_to_str(i), |
| 2364 | s->near.parms.jm_category_info[i]); |
| 2365 | } |
| 2366 | /*endif*/ |
| 2367 | } |
| 2368 | /*endfor*/ |
| 2369 | if (s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_MODULATION_MODES]) |
| 2370 | { |
| 2371 | for (i = 0; i < 16; i++) |
| 2372 | { |
| 2373 | bit = s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_MODULATION_MODES] & (0x8000 >> i); |
| 2374 | if (bit) |
| 2375 | { |
| 2376 | span_log(&s->logging, SPAN_LOG_FLOW, " JM %s\n", v150_1_jm_info_modulation_to_str(bit)); |
| 2377 | } |
| 2378 | /*endif*/ |
| 2379 | } |
| 2380 | /*endfor*/ |
| 2381 | } |
| 2382 | /*endif*/ |
| 2383 | res = -1; |
| 2384 | pkt[0] = V150_1_MSGID_JM_INFO; |
| 2385 | len = 1; |
| 2386 | for (i = 0; i < 16; i++) |
| 2387 | { |
| 2388 | if (s->near.parms.jm_category_id_seen[i]) |
| 2389 | { |
| 2390 | put_net_unaligned_uint16(&pkt[len], (i << 12) | (s->near.parms.jm_category_info[i] & 0x0FFF)); |
| 2391 | len += 2; |
| 2392 | } |
| 2393 | /*endif*/ |
| 2394 | } |
| 2395 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, len); |
| 2396 | span_log(&s->logging, SPAN_LOG_FLOW, "JM info sent\n"); |
| 2397 | return res; |
| 2398 | } |
| 2399 | /*- End of function --------------------------------------------------------*/ |
| 2400 | |
| 2401 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_start_jm(v150_1_state_t *s) |
| 2402 | { |
| 2403 | int res; |
| 2404 | uint8_t pkt[256]; |
| 2405 | |
| 2406 | res = -1; |
| 2407 | if (s->near.parms.connection_state != V150_1_STATE_IDLE) |
| 2408 | { |
| 2409 | pkt[0] = V150_1_MSGID_START_JM; |
| 2410 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, 1); |
| 2411 | span_log(&s->logging, SPAN_LOG_FLOW, "Start JM sent\n"); |
| 2412 | } |
| 2413 | /*endif*/ |
| 2414 | return res; |
| 2415 | } |
| 2416 | /*- End of function --------------------------------------------------------*/ |
| 2417 | |
| 2418 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_connect(v150_1_state_t *s) |
| 2419 | { |
| 2420 | int res; |
| 2421 | int available_data_types; |
| 2422 | int len; |
| 2423 | uint8_t pkt[256]; |
| 2424 | |
| 2425 | res = -1; |
Value stored to 'res' is never read | |
| 2426 | pkt[0] = V150_1_MSGID_CONNECT; |
| 2427 | pkt[1] = (s->near.parms.selmod << 2) | s->near.parms.selected_compression_direction; |
| 2428 | pkt[2] = (s->near.parms.selected_compression << 4) | s->near.parms.selected_error_correction; |
| 2429 | put_net_unaligned_uint16(&pkt[3], s->near.parms.tdsr); |
| 2430 | put_net_unaligned_uint16(&pkt[5], s->near.parms.rdsr); |
| 2431 | |
| 2432 | available_data_types = 0; |
| 2433 | if (s->near.parms.i_octet_with_dlci_available) |
| 2434 | available_data_types |= 0x8000; |
| 2435 | /*endif*/ |
| 2436 | if (s->near.parms.i_octet_without_dlci_available) |
| 2437 | available_data_types |= 0x4000; |
| 2438 | /*endif*/ |
| 2439 | if (s->near.parms.i_raw_bit_available) |
| 2440 | available_data_types |= 0x2000; |
| 2441 | /*endif*/ |
| 2442 | if (s->near.parms.i_frame_available) |
| 2443 | available_data_types |= 0x1000; |
| 2444 | /*endif*/ |
| 2445 | if (s->near.parms.i_char_stat_available) |
| 2446 | available_data_types |= 0x0800; |
| 2447 | /*endif*/ |
| 2448 | if (s->near.parms.i_char_dyn_available) |
| 2449 | available_data_types |= 0x0400; |
| 2450 | /*endif*/ |
| 2451 | if (s->near.parms.i_octet_cs_available) |
| 2452 | available_data_types |= 0x0200; |
| 2453 | /*endif*/ |
| 2454 | if (s->near.parms.i_char_stat_cs_available) |
| 2455 | available_data_types |= 0x0100; |
| 2456 | /*endif*/ |
| 2457 | if (s->near.parms.i_char_dyn_cs_available) |
| 2458 | available_data_types |= 0x0080; |
| 2459 | /*endif*/ |
| 2460 | put_net_unaligned_uint16(&pkt[7], available_data_types); |
| 2461 | len = 9; |
| 2462 | if (s->near.parms.selected_compression == V150_1_COMPRESSION_V42BIS || s->near.parms.selected_compression == V150_1_COMPRESSION_V44) |
| 2463 | { |
| 2464 | /* This is only included if V.42bis or V.44 is selected. For no compression, or MNP5 this is omitted */ |
| 2465 | put_net_unaligned_uint16(&pkt[9], s->near.parms.compression_tx_dictionary_size); |
| 2466 | put_net_unaligned_uint16(&pkt[11], s->near.parms.compression_rx_dictionary_size); |
| 2467 | pkt[13] = s->near.parms.compression_tx_string_length; |
| 2468 | pkt[14] = s->near.parms.compression_rx_string_length; |
| 2469 | len += 6; |
| 2470 | } |
| 2471 | /*endif*/ |
| 2472 | if (s->near.parms.selected_compression == V150_1_COMPRESSION_V44) |
| 2473 | { |
| 2474 | /* This is only included if V.44 is selected. For no compression, MNP5, or V.42bis this is omitted */ |
| 2475 | put_net_unaligned_uint16(&pkt[15], s->near.parms.compression_tx_history_size); |
| 2476 | put_net_unaligned_uint16(&pkt[15], s->near.parms.compression_rx_history_size); |
| 2477 | len += 4; |
| 2478 | } |
| 2479 | /*endif*/ |
| 2480 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, len); |
| 2481 | if (res >= 0) |
| 2482 | { |
| 2483 | s->near.parms.connection_state = V150_1_STATE_CONNECTED; |
| 2484 | if (s->near.parms.connection_state >= V150_1_STATE_CONNECTED) |
| 2485 | s->joint_connection_state = V150_1_STATE_CONNECTED; |
| 2486 | /*endif*/ |
| 2487 | span_log(&s->logging, SPAN_LOG_FLOW, "Connect sent\n"); |
| 2488 | } |
| 2489 | /*endif*/ |
| 2490 | return res; |
| 2491 | } |
| 2492 | /*- End of function --------------------------------------------------------*/ |
| 2493 | |
| 2494 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_break(v150_1_state_t *s, int source, int type, int duration) |
| 2495 | { |
| 2496 | int res; |
| 2497 | uint8_t pkt[256]; |
| 2498 | |
| 2499 | res = -1; |
| 2500 | if (s->near.parms.connection_state != V150_1_STATE_IDLE) |
| 2501 | { |
| 2502 | pkt[0] = V150_1_MSGID_BREAK; |
| 2503 | pkt[1] = (source << 4) | type; |
| 2504 | pkt[2] = duration/10; |
| 2505 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, 3); |
| 2506 | if (res >= 0) |
| 2507 | { |
| 2508 | span_log(&s->logging, SPAN_LOG_FLOW, "Break sent\n"); |
| 2509 | } |
| 2510 | /*endif*/ |
| 2511 | } |
| 2512 | /*endif*/ |
| 2513 | return res; |
| 2514 | } |
| 2515 | /*- End of function --------------------------------------------------------*/ |
| 2516 | |
| 2517 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_break_ack(v150_1_state_t *s) |
| 2518 | { |
| 2519 | int res; |
| 2520 | uint8_t pkt[256]; |
| 2521 | |
| 2522 | res = -1; |
| 2523 | if (s->near.parms.connection_state != V150_1_STATE_IDLE) |
| 2524 | { |
| 2525 | pkt[0] = V150_1_MSGID_BREAKACK; |
| 2526 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, 1); |
| 2527 | if (res >= 0) |
| 2528 | { |
| 2529 | span_log(&s->logging, SPAN_LOG_FLOW, "Break ACK sent\n"); |
| 2530 | } |
| 2531 | /*endif*/ |
| 2532 | } |
| 2533 | /*endif*/ |
| 2534 | return res; |
| 2535 | } |
| 2536 | /*- End of function --------------------------------------------------------*/ |
| 2537 | |
| 2538 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_mr_event(v150_1_state_t *s, int event_id) |
| 2539 | { |
| 2540 | int res; |
| 2541 | int len; |
| 2542 | uint8_t i; |
| 2543 | uint8_t pkt[256]; |
| 2544 | |
| 2545 | res = -1; |
| 2546 | pkt[0] = V150_1_MSGID_MR_EVENT; |
| 2547 | pkt[1] = event_id; |
| 2548 | switch (event_id) |
| 2549 | { |
| 2550 | case V150_1_MR_EVENT_ID_RETRAIN: |
| 2551 | pkt[2] = V150_1_MR_EVENT_REASON_NULL; |
| 2552 | len = 3; |
| 2553 | s->near.parms.connection_state = V150_1_STATE_RETRAIN; |
| 2554 | s->joint_connection_state = V150_1_STATE_RETRAIN; |
| 2555 | break; |
| 2556 | case V150_1_MR_EVENT_ID_RATE_RENEGOTIATION: |
| 2557 | pkt[2] = V150_1_MR_EVENT_REASON_NULL; |
| 2558 | len = 3; |
| 2559 | s->near.parms.connection_state = V150_1_STATE_RATE_RENEGOTIATION; |
| 2560 | s->joint_connection_state = V150_1_STATE_RATE_RENEGOTIATION; |
| 2561 | break; |
| 2562 | case V150_1_MR_EVENT_ID_PHYSUP: |
| 2563 | pkt[2] = 0; |
| 2564 | i = (s->near.parms.selmod << 2); |
| 2565 | if (s->near.parms.txsen) |
| 2566 | i |= 0x02; |
| 2567 | /*endif*/ |
| 2568 | if (s->near.parms.rxsen) |
| 2569 | i |= 0x01; |
| 2570 | /*endif*/ |
| 2571 | pkt[3] = i; |
| 2572 | put_net_unaligned_uint16(&pkt[4], s->near.parms.tdsr); |
| 2573 | put_net_unaligned_uint16(&pkt[4], s->near.parms.rdsr); |
| 2574 | pkt[8] = (s->near.parms.txsen) ? s->near.parms.txsr : V150_1_SYMBOL_RATE_NULL; |
| 2575 | pkt[9] = (s->near.parms.rxsen) ? s->near.parms.rxsr : V150_1_SYMBOL_RATE_NULL; |
| 2576 | len = 10; |
| 2577 | s->near.parms.connection_state = V150_1_STATE_PHYSUP; |
| 2578 | if (s->far.parms.connection_state >= V150_1_STATE_PHYSUP) |
| 2579 | s->joint_connection_state = V150_1_STATE_PHYSUP; |
| 2580 | /*endif*/ |
| 2581 | break; |
| 2582 | case V150_1_MR_EVENT_ID_NULL: |
| 2583 | default: |
| 2584 | pkt[2] = 0; |
| 2585 | len = 3; |
| 2586 | break; |
| 2587 | } |
| 2588 | /*endswitch*/ |
| 2589 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, len); |
| 2590 | if (res >= 0) |
| 2591 | { |
| 2592 | span_log(&s->logging, SPAN_LOG_FLOW, "MR-event %s (%d) sent\n", v150_1_mr_event_type_to_str(event_id), event_id); |
| 2593 | } |
| 2594 | /*endif*/ |
| 2595 | return res; |
| 2596 | } |
| 2597 | /*- End of function --------------------------------------------------------*/ |
| 2598 | |
| 2599 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_cleardown(v150_1_state_t *s, int reason) |
| 2600 | { |
| 2601 | int res; |
| 2602 | uint8_t pkt[256]; |
| 2603 | |
| 2604 | res = -1; |
| 2605 | |
| 2606 | if (s->near.parms.connection_state != V150_1_STATE_IDLE) |
| 2607 | { |
| 2608 | pkt[0] = V150_1_MSGID_CLEARDOWN; |
| 2609 | pkt[1] = reason; |
| 2610 | pkt[2] = 0; /* Vendor tag */ |
| 2611 | pkt[3] = 0; /* Vendor info */ |
| 2612 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, 4); |
| 2613 | if (res >= 0) |
| 2614 | { |
| 2615 | s->near.parms.connection_state = V150_1_STATE_IDLE; |
| 2616 | span_log(&s->logging, SPAN_LOG_FLOW, "Cleardown sent\n"); |
| 2617 | } |
| 2618 | /*endif*/ |
| 2619 | } |
| 2620 | /*endif*/ |
| 2621 | return res; |
| 2622 | } |
| 2623 | /*- End of function --------------------------------------------------------*/ |
| 2624 | |
| 2625 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_prof_xchg(v150_1_state_t *s) |
| 2626 | { |
| 2627 | int res; |
| 2628 | uint8_t i; |
| 2629 | uint8_t pkt[256]; |
| 2630 | |
| 2631 | res = -1; |
| 2632 | pkt[0] = V150_1_MSGID_PROF_XCHG; |
| 2633 | i = 0; |
| 2634 | if (s->near.parms.v42_lapm_supported) |
| 2635 | i |= 0x40; |
| 2636 | /*endif*/ |
| 2637 | if (s->near.parms.v42_annex_a_supported) |
| 2638 | i |= 0x10; |
| 2639 | /*endif*/ |
| 2640 | if (s->near.parms.v44_supported) |
| 2641 | i |= 0x04; |
| 2642 | /*endif*/ |
| 2643 | if (s->near.parms.v42bis_supported) |
| 2644 | i |= 0x01; |
| 2645 | /*endif*/ |
| 2646 | pkt[1] = i; |
| 2647 | i = 0; |
| 2648 | if (s->near.parms.mnp5_supported) |
| 2649 | i |= 0x40; |
| 2650 | /*endif*/ |
| 2651 | pkt[2] = i; |
| 2652 | if (s->near.parms.v42bis_supported) |
| 2653 | { |
| 2654 | pkt[3] = s->near.parms.v42bis_p0; |
| 2655 | put_net_unaligned_uint16(&pkt[4], s->near.parms.v42bis_p1); |
| 2656 | pkt[6] = s->near.parms.v42bis_p2; |
| 2657 | } |
| 2658 | else |
| 2659 | { |
| 2660 | memset(&pkt[3], 0, 4); |
| 2661 | } |
| 2662 | /*endif*/ |
| 2663 | if (s->near.parms.v44_supported) |
| 2664 | { |
| 2665 | pkt[7] = s->near.parms.v44_c0; |
| 2666 | pkt[8] = s->near.parms.v44_p0; |
| 2667 | put_net_unaligned_uint16(&pkt[9], s->near.parms.v44_p1t); |
| 2668 | put_net_unaligned_uint16(&pkt[11], s->near.parms.v44_p1r); |
| 2669 | pkt[13] = s->near.parms.v44_p2t; |
| 2670 | pkt[14] = s->near.parms.v44_p2r; |
| 2671 | put_net_unaligned_uint16(&pkt[15], s->near.parms.v44_p3t); |
| 2672 | put_net_unaligned_uint16(&pkt[17], s->near.parms.v44_p3r); |
| 2673 | } |
| 2674 | else |
| 2675 | { |
| 2676 | memset(&pkt[7], 0, 12); |
| 2677 | } |
| 2678 | /*endif*/ |
| 2679 | res = sprt_tx(&s->sprt, SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED, pkt, 19); |
| 2680 | span_log(&s->logging, SPAN_LOG_FLOW, "Prof xchg sent\n"); |
| 2681 | return res; |
| 2682 | } |
| 2683 | /*- End of function --------------------------------------------------------*/ |
| 2684 | |
| 2685 | static int v150_1_build_i_raw_octet(v150_1_state_t *s, uint8_t pkt[], int max_len, const uint8_t buf[], int len) |
| 2686 | { |
| 2687 | if (len > max_len - 3) |
| 2688 | return -1; |
| 2689 | /*endif*/ |
| 2690 | pkt[0] = V150_1_MSGID_I_RAW_OCTET; |
| 2691 | pkt[1] = 0x80 | 0x02; /* L */ |
| 2692 | pkt[2] = 0x02; /* N */ |
| 2693 | memcpy(&pkt[3], buf, len); |
| 2694 | len += 3; |
| 2695 | return len; |
| 2696 | } |
| 2697 | /*- End of function --------------------------------------------------------*/ |
| 2698 | |
| 2699 | static int v150_1_build_i_raw_bit(v150_1_state_t *s, uint8_t pkt[], int max_len, const uint8_t buf[], int len) |
| 2700 | { |
| 2701 | if (!s->far.parms.i_raw_bit_available) |
| 2702 | return -1; |
| 2703 | /*endif*/ |
| 2704 | if (len > max_len - 3) |
| 2705 | return -1; |
| 2706 | /*endif*/ |
| 2707 | pkt[0] = V150_1_MSGID_I_RAW_BIT; |
| 2708 | pkt[1] = 0x80 | 0x02; /* L */ |
| 2709 | pkt[2] = 0x02; /* N */ |
| 2710 | memcpy(&pkt[3], buf, len); |
| 2711 | len += 3; |
| 2712 | return len; |
| 2713 | } |
| 2714 | /*- End of function --------------------------------------------------------*/ |
| 2715 | |
| 2716 | static int v150_1_build_i_octet(v150_1_state_t *s, uint8_t pkt[], int max_len, const uint8_t buf[], int len) |
| 2717 | { |
| 2718 | int header; |
| 2719 | |
| 2720 | if (!s->far.parms.i_octet_without_dlci_available && !s->far.parms.i_octet_with_dlci_available) |
| 2721 | return -1; |
| 2722 | /*endif*/ |
| 2723 | if (len > max_len - 3) |
| 2724 | return -1; |
| 2725 | /*endif*/ |
| 2726 | pkt[0] = V150_1_MSGID_I_OCTET; |
| 2727 | if (s->far.parms.i_octet_with_dlci_available) |
| 2728 | { |
| 2729 | /* The DLCI may be one or two octets long. */ |
| 2730 | if ((s->near.parms.dlci & 0x01) == 0) |
| 2731 | { |
| 2732 | pkt[1] = s->near.parms.dlci & 0xFF; |
| 2733 | header = 2; |
| 2734 | } |
| 2735 | else |
| 2736 | { |
| 2737 | put_net_unaligned_uint16(&pkt[1], s->near.parms.dlci); |
| 2738 | header = 3; |
| 2739 | } |
| 2740 | /*endif*/ |
| 2741 | } |
| 2742 | else |
| 2743 | { |
| 2744 | header = 1; |
| 2745 | } |
| 2746 | /*endif*/ |
| 2747 | memcpy(&pkt[header], buf, len); |
| 2748 | len += header; |
| 2749 | return len; |
| 2750 | } |
| 2751 | /*- End of function --------------------------------------------------------*/ |
| 2752 | |
| 2753 | static int v150_1_build_i_char_stat(v150_1_state_t *s, uint8_t pkt[], int max_len, const uint8_t buf[], int len) |
| 2754 | { |
| 2755 | if (!s->far.parms.i_char_stat_available) |
| 2756 | return -1; |
| 2757 | /*endif*/ |
| 2758 | if (len > max_len - 2) |
| 2759 | return -1; |
| 2760 | /*endif*/ |
| 2761 | pkt[0] = V150_1_MSGID_I_CHAR_STAT; |
| 2762 | pkt[1] = s->near.parms.data_format_code; |
| 2763 | memcpy(&pkt[2], buf, len); |
| 2764 | len += 2; |
| 2765 | return len; |
| 2766 | } |
| 2767 | /*- End of function --------------------------------------------------------*/ |
| 2768 | |
| 2769 | static int v150_1_build_i_char_dyn(v150_1_state_t *s, uint8_t pkt[], int max_len, const uint8_t buf[], int len) |
| 2770 | { |
| 2771 | if (!s->far.parms.i_char_dyn_available) |
| 2772 | return -1; |
| 2773 | /*endif*/ |
| 2774 | if (len > max_len - 2) |
| 2775 | return -1; |
| 2776 | /*endif*/ |
| 2777 | pkt[0] = V150_1_MSGID_I_CHAR_DYN; |
| 2778 | pkt[1] = s->near.parms.data_format_code; |
| 2779 | memcpy(&pkt[2], buf, len); |
| 2780 | len += 2; |
| 2781 | return len; |
| 2782 | } |
| 2783 | /*- End of function --------------------------------------------------------*/ |
| 2784 | |
| 2785 | static int v150_1_build_i_frame(v150_1_state_t *s, uint8_t pkt[], int max_len, const uint8_t buf[], int len) |
| 2786 | { |
| 2787 | int data_frame_state; |
| 2788 | |
| 2789 | data_frame_state = 0; |
| 2790 | |
| 2791 | if (!s->far.parms.i_frame_available) |
| 2792 | return -1; |
| 2793 | /*endif*/ |
| 2794 | if (len > max_len - 2) |
| 2795 | return -1; |
| 2796 | /*endif*/ |
| 2797 | pkt[0] = V150_1_MSGID_I_FRAME; |
| 2798 | pkt[1] = data_frame_state & 0x03; |
| 2799 | memcpy(&pkt[2], buf, len); |
| 2800 | len += 2; |
| 2801 | return len; |
| 2802 | } |
| 2803 | /*- End of function --------------------------------------------------------*/ |
| 2804 | |
| 2805 | static int v150_1_build_i_octet_cs(v150_1_state_t *s, uint8_t pkt[], int max_len, const uint8_t buf[], int len) |
| 2806 | { |
| 2807 | if (!s->far.parms.i_octet_cs_available) |
| 2808 | return -1; |
| 2809 | /*endif*/ |
| 2810 | if (len > max_len - 3) |
| 2811 | return -1; |
| 2812 | /*endif*/ |
| 2813 | pkt[0] = V150_1_MSGID_I_OCTET_CS; |
| 2814 | put_net_unaligned_uint16(&pkt[1], s->near.parms.octet_cs_next_seq_no & 0xFFFF); |
| 2815 | memcpy(&pkt[3], buf, len); |
| 2816 | s->near.parms.octet_cs_next_seq_no += len; |
| 2817 | len += 3; |
| 2818 | return len; |
| 2819 | } |
| 2820 | /*- End of function --------------------------------------------------------*/ |
| 2821 | |
| 2822 | static int v150_1_build_i_char_stat_cs(v150_1_state_t *s, uint8_t pkt[], int max_len, const uint8_t buf[], int len) |
| 2823 | { |
| 2824 | if (!s->far.parms.i_char_stat_cs_available) |
| 2825 | return -1; |
| 2826 | /*endif*/ |
| 2827 | if (len > max_len - 4) |
| 2828 | return -1; |
| 2829 | /*endif*/ |
| 2830 | pkt[0] = V150_1_MSGID_I_CHAR_STAT_CS; |
| 2831 | pkt[1] = s->near.parms.data_format_code; |
| 2832 | put_net_unaligned_uint16(&pkt[2], s->near.parms.octet_cs_next_seq_no & 0xFFFF); |
| 2833 | memcpy(&pkt[4], buf, len); |
| 2834 | len += 4; |
| 2835 | s->near.parms.octet_cs_next_seq_no += len; |
| 2836 | return len; |
| 2837 | } |
| 2838 | /*- End of function --------------------------------------------------------*/ |
| 2839 | |
| 2840 | static int v150_1_build_i_char_dyn_cs(v150_1_state_t *s, uint8_t pkt[], int max_len, const uint8_t buf[], int len) |
| 2841 | { |
| 2842 | if (!s->far.parms.i_char_dyn_cs_available) |
| 2843 | return -1; |
| 2844 | /*endif*/ |
| 2845 | if (len > max_len - 4) |
| 2846 | return -1; |
| 2847 | /*endif*/ |
| 2848 | pkt[0] = V150_1_MSGID_I_CHAR_DYN_CS; |
| 2849 | pkt[1] = s->near.parms.data_format_code; |
| 2850 | put_net_unaligned_uint16(&pkt[2], s->near.parms.octet_cs_next_seq_no & 0xFFFF); |
| 2851 | memcpy(&pkt[4], buf, len); |
| 2852 | s->near.parms.octet_cs_next_seq_no += len; |
| 2853 | len += 4; |
| 2854 | return len; |
| 2855 | } |
| 2856 | /*- End of function --------------------------------------------------------*/ |
| 2857 | |
| 2858 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_tx_info_stream(v150_1_state_t *s, const uint8_t buf[], int len) |
| 2859 | { |
| 2860 | uint8_t pkt[256]; |
| 2861 | int max_len; |
| 2862 | int res; |
| 2863 | |
| 2864 | max_len = s->near.max_payload_bytes[s->near.info_stream_channel]; |
| 2865 | switch (s->near.info_stream_msg_id) |
| 2866 | { |
| 2867 | case V150_1_MSGID_I_RAW_OCTET: |
| 2868 | res = v150_1_build_i_raw_octet(s, pkt, max_len, buf, len); |
| 2869 | break; |
| 2870 | case V150_1_MSGID_I_RAW_BIT: |
| 2871 | res = v150_1_build_i_raw_bit(s, pkt, max_len, buf, len); |
| 2872 | break; |
| 2873 | case V150_1_MSGID_I_OCTET: |
| 2874 | res = v150_1_build_i_octet(s, pkt, max_len, buf, len); |
| 2875 | break; |
| 2876 | case V150_1_MSGID_I_CHAR_STAT: |
| 2877 | res = v150_1_build_i_char_stat(s, pkt, max_len, buf, len); |
| 2878 | break; |
| 2879 | case V150_1_MSGID_I_CHAR_DYN: |
| 2880 | res = v150_1_build_i_char_dyn(s, pkt, max_len, buf, len); |
| 2881 | break; |
| 2882 | case V150_1_MSGID_I_FRAME: |
| 2883 | res = v150_1_build_i_frame(s, pkt, max_len, buf, len); |
| 2884 | break; |
| 2885 | case V150_1_MSGID_I_OCTET_CS: |
| 2886 | res = v150_1_build_i_octet_cs(s, pkt, max_len, buf, len); |
| 2887 | break; |
| 2888 | case V150_1_MSGID_I_CHAR_STAT_CS: |
| 2889 | res = v150_1_build_i_char_stat_cs(s, pkt, max_len, buf, len); |
| 2890 | break; |
| 2891 | case V150_1_MSGID_I_CHAR_DYN_CS: |
| 2892 | res = v150_1_build_i_char_dyn_cs(s, pkt, max_len, buf, len); |
| 2893 | break; |
| 2894 | default: |
| 2895 | res = -1; |
| 2896 | break; |
| 2897 | } |
| 2898 | /*endswitch*/ |
| 2899 | if (res >= 0) |
| 2900 | { |
| 2901 | res = sprt_tx(&s->sprt, s->near.info_stream_channel, pkt, res); |
| 2902 | } |
| 2903 | else |
| 2904 | { |
| 2905 | span_log(&s->logging, SPAN_LOG_FLOW, "Bad message\n"); |
| 2906 | } |
| 2907 | /*endif*/ |
| 2908 | return res; |
| 2909 | } |
| 2910 | /*- End of function --------------------------------------------------------*/ |
| 2911 | |
| 2912 | static int v150_1_process_null(v150_1_state_t *s, const uint8_t buf[], int len) |
| 2913 | { |
| 2914 | if (len != 1) |
| 2915 | return -1; |
| 2916 | return 0; |
| 2917 | } |
| 2918 | /*- End of function --------------------------------------------------------*/ |
| 2919 | |
| 2920 | static int v150_1_process_init(v150_1_state_t *s, const uint8_t buf[], int len) |
| 2921 | { |
| 2922 | if (len != 3) |
| 2923 | { |
| 2924 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid INIT message length %d\n", len); |
| 2925 | return -1; |
| 2926 | } |
| 2927 | /*endif*/ |
| 2928 | /* Just capture what the far end says about its capabilities */ |
| 2929 | s->far.parms.necrxch_option = (buf[1] & 0x80) != 0; |
| 2930 | s->far.parms.ecrxch_option = (buf[1] & 0x40) != 0; |
| 2931 | s->far.parms.xid_profile_exchange_supported = (buf[1] & 0x20) != 0; |
| 2932 | s->far.parms.asymmetric_data_types_supported = (buf[1] & 0x10) != 0; |
| 2933 | s->far.parms.i_raw_bit_supported = (buf[1] & 0x08) != 0; |
| 2934 | s->far.parms.i_frame_supported = (buf[1] & 0x04) != 0; |
| 2935 | s->far.parms.i_char_stat_supported = (buf[1] & 0x02) != 0; |
| 2936 | s->far.parms.i_char_dyn_supported = (buf[1] & 0x01) != 0; |
| 2937 | s->far.parms.i_octet_cs_supported = (buf[2] & 0x80) != 0; |
| 2938 | s->far.parms.i_char_stat_cs_supported = (buf[2] & 0x40) != 0; |
| 2939 | s->far.parms.i_char_dyn_cs_supported = (buf[2] & 0x20) != 0; |
| 2940 | |
| 2941 | /* Now sift out what will be available, because both ends support the features */ |
| 2942 | s->near.parms.i_raw_bit_available = s->near.parms.i_raw_bit_supported && s->far.parms.i_raw_bit_supported; |
| 2943 | s->near.parms.i_frame_available = s->near.parms.i_frame_supported && s->far.parms.i_frame_supported; |
| 2944 | s->near.parms.i_octet_with_dlci_available = s->near.parms.dlci_supported; |
| 2945 | s->near.parms.i_octet_without_dlci_available = !s->near.parms.dlci_supported; |
| 2946 | s->near.parms.i_char_stat_available = s->near.parms.i_char_stat_supported && s->far.parms.i_char_stat_supported; |
| 2947 | s->near.parms.i_char_dyn_available = s->near.parms.i_char_dyn_supported && s->far.parms.i_char_dyn_supported; |
| 2948 | s->near.parms.i_octet_cs_available = s->near.parms.i_octet_cs_supported && s->far.parms.i_octet_cs_supported; |
| 2949 | s->near.parms.i_char_stat_cs_available = s->near.parms.i_char_stat_cs_supported && s->far.parms.i_char_stat_cs_supported; |
| 2950 | s->near.parms.i_char_dyn_cs_available = s->near.parms.i_char_dyn_cs_supported && s->far.parms.i_char_dyn_cs_supported; |
| 2951 | |
| 2952 | if (s->far.parms.connection_state >= V150_1_STATE_INITED) |
| 2953 | select_info_msg_type(s); |
| 2954 | /*endif*/ |
| 2955 | span_log(&s->logging, SPAN_LOG_FLOW, "Received INIT\n"); |
| 2956 | log_init(s, &s->far.parms); |
| 2957 | |
| 2958 | s->far.parms.connection_state = V150_1_STATE_INITED; |
| 2959 | if (s->near.parms.connection_state >= V150_1_STATE_INITED) |
| 2960 | s->joint_connection_state = V150_1_STATE_INITED; |
| 2961 | /*endif*/ |
| 2962 | status_report(s, V150_1_STATUS_REASON_CONNECTION_STATE_CHANGED); |
| 2963 | return 0; |
| 2964 | } |
| 2965 | /*- End of function --------------------------------------------------------*/ |
| 2966 | |
| 2967 | static int v150_1_process_xid_xchg(v150_1_state_t *s, const uint8_t buf[], int len) |
| 2968 | { |
| 2969 | if (s->joint_connection_state < V150_1_STATE_INITED) |
| 2970 | { |
| 2971 | span_log(&s->logging, SPAN_LOG_WARNING, "XID_XCHG received before INIT. Ignored.\n"); |
| 2972 | return -1; |
| 2973 | } |
| 2974 | /*endif*/ |
| 2975 | if (len != 19) |
| 2976 | { |
| 2977 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid XID_XCHG message length %d\n", len); |
| 2978 | return -1; |
| 2979 | } |
| 2980 | /*endif*/ |
| 2981 | s->far.parms.ecp = buf[1]; |
| 2982 | |
| 2983 | s->far.parms.v42bis_supported = (buf[2] & 0x80) != 0; |
| 2984 | s->far.parms.v44_supported = (buf[2] & 0x40) != 0; |
| 2985 | s->far.parms.mnp5_supported = (buf[2] & 0x20) != 0; |
| 2986 | |
| 2987 | s->far.parms.v42bis_p0 = buf[3]; |
| 2988 | s->far.parms.v42bis_p1 = get_net_unaligned_uint16(&buf[4]); |
| 2989 | s->far.parms.v42bis_p2 = buf[6]; |
| 2990 | s->far.parms.v44_c0 = buf[7]; |
| 2991 | s->far.parms.v44_p0 = buf[8]; |
| 2992 | s->far.parms.v44_p1t = get_net_unaligned_uint16(&buf[9]); |
| 2993 | s->far.parms.v44_p1r = get_net_unaligned_uint16(&buf[11]); |
| 2994 | s->far.parms.v44_p2t = buf[13]; |
| 2995 | s->far.parms.v44_p2r = buf[14]; |
| 2996 | s->far.parms.v44_p3t = get_net_unaligned_uint16(&buf[15]); |
| 2997 | s->far.parms.v44_p3r = get_net_unaligned_uint16(&buf[17]); |
| 2998 | |
| 2999 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42bis %ssupported\n", (s->far.parms.v42bis_supported) ? "" : "not "); |
| 3000 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 %ssupported\n", (s->far.parms.v44_supported) ? "" : "not "); |
| 3001 | span_log(&s->logging, SPAN_LOG_FLOW, " MNP5 %ssupported\n", (s->far.parms.mnp5_supported) ? "" : "not "); |
| 3002 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42bis P0 %d\n", s->far.parms.v42bis_p0); |
| 3003 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42bis P1 %d\n", s->far.parms.v42bis_p1); |
| 3004 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42bis P2 %d\n", s->far.parms.v42bis_p2); |
| 3005 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 C0 %d\n", s->far.parms.v44_c0); |
| 3006 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P1 %d\n", s->far.parms.v44_p0); |
| 3007 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P1T %d\n", s->far.parms.v44_p1t); |
| 3008 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P1R %d\n", s->far.parms.v44_p1r); |
| 3009 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P2T %d\n", s->far.parms.v44_p2t); |
| 3010 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P2R %d\n", s->far.parms.v44_p2r); |
| 3011 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P3T %d\n", s->far.parms.v44_p3t); |
| 3012 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P3R %d\n", s->far.parms.v44_p3r); |
| 3013 | |
| 3014 | /* TODO: */ |
| 3015 | return 0; |
| 3016 | } |
| 3017 | /*- End of function --------------------------------------------------------*/ |
| 3018 | |
| 3019 | static int v150_1_process_jm_info(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3020 | { |
| 3021 | int i; |
| 3022 | int id; |
| 3023 | int bit; |
| 3024 | |
| 3025 | if (s->joint_connection_state < V150_1_STATE_INITED) |
| 3026 | { |
| 3027 | span_log(&s->logging, SPAN_LOG_WARNING, "JM_INFO received before INIT. Ignored.\n"); |
| 3028 | return -1; |
| 3029 | } |
| 3030 | /*endif*/ |
| 3031 | /* The length must be even */ |
| 3032 | if ((len & 1) != 1) |
| 3033 | { |
| 3034 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid JM_INFO message length %d\n", len); |
| 3035 | return -1; |
| 3036 | } |
| 3037 | /*endif*/ |
| 3038 | for (i = 1; i < len; i += 2) |
| 3039 | { |
| 3040 | id = (buf[i] >> 4) & 0x0F; |
| 3041 | s->far.parms.jm_category_id_seen[id] = true1; |
| 3042 | s->far.parms.jm_category_info[id] = get_net_unaligned_uint16(&buf[i]) & 0x0FFF; |
| 3043 | } |
| 3044 | /*endfor*/ |
| 3045 | for (i = 0; i < 16; i++) |
| 3046 | { |
| 3047 | if (s->far.parms.jm_category_id_seen[i]) |
| 3048 | { |
| 3049 | span_log(&s->logging, |
| 3050 | SPAN_LOG_WARNING, |
| 3051 | " JM %s 0x%x\n", |
| 3052 | v150_1_jm_category_to_str(i), |
| 3053 | s->far.parms.jm_category_info[i]); |
| 3054 | } |
| 3055 | /*endif*/ |
| 3056 | } |
| 3057 | /*endfor*/ |
| 3058 | if (s->far.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_MODULATION_MODES]) |
| 3059 | { |
| 3060 | for (i = 0; i < 16; i++) |
| 3061 | { |
| 3062 | bit = s->far.parms.jm_category_info[V150_1_JM_CATEGORY_ID_MODULATION_MODES] & (0x8000 >> i); |
| 3063 | if (bit) |
| 3064 | { |
| 3065 | span_log(&s->logging, SPAN_LOG_FLOW, " JM %s\n", v150_1_jm_info_modulation_to_str(bit)); |
| 3066 | } |
| 3067 | /*endif*/ |
| 3068 | } |
| 3069 | /*endfor*/ |
| 3070 | } |
| 3071 | /*endif*/ |
| 3072 | |
| 3073 | /* TODO: */ |
| 3074 | return 0; |
| 3075 | } |
| 3076 | /*- End of function --------------------------------------------------------*/ |
| 3077 | |
| 3078 | static int v150_1_process_start_jm(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3079 | { |
| 3080 | if (s->joint_connection_state < V150_1_STATE_INITED) |
| 3081 | { |
| 3082 | span_log(&s->logging, SPAN_LOG_WARNING, "START_JM received before INIT. Ignored.\n"); |
| 3083 | return -1; |
| 3084 | } |
| 3085 | /*endif*/ |
| 3086 | if (len > 1) |
| 3087 | { |
| 3088 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid START_JM message length %d\n", len); |
| 3089 | return -1; |
| 3090 | } |
| 3091 | /*endif*/ |
| 3092 | |
| 3093 | /* TODO: */ |
| 3094 | return 0; |
| 3095 | } |
| 3096 | /*- End of function --------------------------------------------------------*/ |
| 3097 | |
| 3098 | static int v150_1_process_connect(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3099 | { |
| 3100 | int available_data_types; |
| 3101 | |
| 3102 | if (s->joint_connection_state < V150_1_STATE_INITED) |
| 3103 | { |
| 3104 | span_log(&s->logging, SPAN_LOG_WARNING, "CONNECT received before INIT. Ignored.\n"); |
| 3105 | return -1; |
| 3106 | } |
| 3107 | /*endif*/ |
| 3108 | if (len < 9 || len > 19) |
| 3109 | { |
| 3110 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid CONNECT message length %d\n", len); |
| 3111 | return -1; |
| 3112 | } |
| 3113 | /*endif*/ |
| 3114 | s->far.parms.selmod = (buf[1] >> 2) & 0x3F; |
| 3115 | s->far.parms.selected_compression_direction = buf[1] & 0x03; |
| 3116 | s->far.parms.selected_compression = (buf[2] >> 4) & 0x0F; |
| 3117 | s->far.parms.selected_error_correction = buf[2] & 0x0F; |
| 3118 | s->far.parms.tdsr = get_net_unaligned_uint16(&buf[3]); |
| 3119 | s->far.parms.rdsr = get_net_unaligned_uint16(&buf[5]); |
| 3120 | |
| 3121 | available_data_types = get_net_unaligned_uint16(&buf[7]); |
| 3122 | s->far.parms.i_octet_with_dlci_available = (available_data_types & 0x8000) != 0; |
| 3123 | s->far.parms.i_octet_without_dlci_available = (available_data_types & 0x4000) != 0; |
| 3124 | s->far.parms.i_raw_bit_available = (available_data_types & 0x2000) != 0; |
| 3125 | s->far.parms.i_frame_available = (available_data_types & 0x1000) != 0; |
| 3126 | s->far.parms.i_char_stat_available = (available_data_types & 0x0800) != 0; |
| 3127 | s->far.parms.i_char_dyn_available = (available_data_types & 0x0400) != 0; |
| 3128 | s->far.parms.i_octet_cs_available = (available_data_types & 0x0200) != 0; |
| 3129 | s->far.parms.i_char_stat_cs_available = (available_data_types & 0x0100) != 0; |
| 3130 | s->far.parms.i_char_dyn_cs_available = (available_data_types & 0x0080) != 0; |
| 3131 | |
| 3132 | span_log(&s->logging, SPAN_LOG_FLOW, " Modulation %s\n", v150_1_modulation_to_str(s->far.parms.selmod)); |
| 3133 | span_log(&s->logging, SPAN_LOG_FLOW, " Compression direction %s\n", v150_1_compression_direction_to_str(s->far.parms.selected_compression_direction)); |
| 3134 | span_log(&s->logging, SPAN_LOG_FLOW, " Compression %s\n", v150_1_compression_to_str(s->far.parms.selected_compression)); |
| 3135 | span_log(&s->logging, SPAN_LOG_FLOW, " Error correction %s\n", v150_1_error_correction_to_str(s->far.parms.selected_error_correction)); |
| 3136 | span_log(&s->logging, SPAN_LOG_FLOW, " Tx data rate %d\n", s->far.parms.tdsr); |
| 3137 | span_log(&s->logging, SPAN_LOG_FLOW, " Rx data rate %d\n", s->far.parms.rdsr); |
| 3138 | |
| 3139 | span_log(&s->logging, SPAN_LOG_FLOW, " I_RAW-CHAR available\n"); |
| 3140 | span_log(&s->logging, SPAN_LOG_FLOW, " I_RAW-BIT %savailable\n", (s->far.parms.i_raw_bit_available) ? "" : "not "); |
| 3141 | span_log(&s->logging, SPAN_LOG_FLOW, " I_FRAME %savailable\n", (s->far.parms.i_frame_available) ? "" : "not "); |
| 3142 | if (s->far.parms.i_octet_without_dlci_available || s->far.parms.i_octet_without_dlci_available) |
| 3143 | { |
| 3144 | if (s->far.parms.i_octet_without_dlci_available) |
| 3145 | span_log(&s->logging, SPAN_LOG_FLOW, " I_OCTET (no DLCI) available\n"); |
| 3146 | /*endif*/ |
| 3147 | if (s->far.parms.i_octet_with_dlci_available) |
| 3148 | span_log(&s->logging, SPAN_LOG_FLOW, " I_OCTET (DLCI) available\n"); |
| 3149 | /*endif*/ |
| 3150 | } |
| 3151 | else |
| 3152 | { |
| 3153 | span_log(&s->logging, SPAN_LOG_FLOW, " I_OCTET not available\n"); |
| 3154 | } |
| 3155 | /*endif*/ |
| 3156 | span_log(&s->logging, SPAN_LOG_FLOW, " I_CHAR-STAT %savailable\n", (s->far.parms.i_char_stat_available) ? "" : "not "); |
| 3157 | span_log(&s->logging, SPAN_LOG_FLOW, " I_CHAR-DYN %savailable\n", (s->far.parms.i_char_dyn_available) ? "" : "not "); |
| 3158 | span_log(&s->logging, SPAN_LOG_FLOW, " I_OCTET-CS %savailable\n", (s->far.parms.i_octet_cs_available) ? "" : "not "); |
| 3159 | span_log(&s->logging, SPAN_LOG_FLOW, " I_CHAR-STAT-CS %savailable\n", (s->far.parms.i_char_stat_cs_available) ? "" : "not "); |
| 3160 | span_log(&s->logging, SPAN_LOG_FLOW, " I_CHAR-DYN-CS %savailable\n", (s->far.parms.i_char_dyn_cs_available) ? "" : "not "); |
| 3161 | |
| 3162 | if (len >= 15 |
| 3163 | && |
| 3164 | (s->far.parms.selected_compression == V150_1_COMPRESSION_V42BIS || s->far.parms.selected_compression == V150_1_COMPRESSION_V44)) |
| 3165 | { |
| 3166 | /* Selected_compression should be V150_1_COMPRESSION_V42BIS or V150_1_COMPRESSION_V44 */ |
| 3167 | s->far.parms.compression_tx_dictionary_size = get_net_unaligned_uint16(&buf[9]); |
| 3168 | s->far.parms.compression_rx_dictionary_size = get_net_unaligned_uint16(&buf[11]); |
| 3169 | s->far.parms.compression_tx_string_length = buf[13]; |
| 3170 | s->far.parms.compression_rx_string_length = buf[14]; |
| 3171 | |
| 3172 | span_log(&s->logging, SPAN_LOG_FLOW, " Tx dictionary size %d\n", s->far.parms.compression_tx_dictionary_size); |
| 3173 | span_log(&s->logging, SPAN_LOG_FLOW, " Rx dictionary size %d\n", s->far.parms.compression_rx_dictionary_size); |
| 3174 | span_log(&s->logging, SPAN_LOG_FLOW, " Tx string length %d\n", s->far.parms.compression_tx_string_length); |
| 3175 | span_log(&s->logging, SPAN_LOG_FLOW, " Rx string length %d\n", s->far.parms.compression_rx_string_length); |
| 3176 | } |
| 3177 | else |
| 3178 | { |
| 3179 | s->far.parms.compression_tx_dictionary_size = 0; |
| 3180 | s->far.parms.compression_rx_dictionary_size = 0; |
| 3181 | s->far.parms.compression_tx_string_length = 0; |
| 3182 | s->far.parms.compression_rx_string_length = 0; |
| 3183 | } |
| 3184 | /*endif*/ |
| 3185 | |
| 3186 | if (len >= 19 |
| 3187 | && |
| 3188 | s->far.parms.selected_compression == V150_1_COMPRESSION_V44) |
| 3189 | { |
| 3190 | /* Selected_compression should be V150_1_COMPRESSION_V44 */ |
| 3191 | s->far.parms.compression_tx_history_size = get_net_unaligned_uint16(&buf[15]); |
| 3192 | s->far.parms.compression_rx_history_size = get_net_unaligned_uint16(&buf[17]); |
| 3193 | |
| 3194 | span_log(&s->logging, SPAN_LOG_FLOW, " Tx history size %d\n", s->far.parms.compression_tx_history_size); |
| 3195 | span_log(&s->logging, SPAN_LOG_FLOW, " Rx history size %d\n", s->far.parms.compression_rx_history_size); |
| 3196 | } |
| 3197 | else |
| 3198 | { |
| 3199 | s->far.parms.compression_tx_history_size = 0; |
| 3200 | s->far.parms.compression_rx_history_size = 0; |
| 3201 | } |
| 3202 | /*endif*/ |
| 3203 | |
| 3204 | s->far.parms.connection_state = V150_1_STATE_CONNECTED; |
| 3205 | if (s->near.parms.connection_state >= V150_1_STATE_CONNECTED) |
| 3206 | s->joint_connection_state = V150_1_STATE_CONNECTED; |
| 3207 | /*endif*/ |
| 3208 | status_report(s, V150_1_STATUS_REASON_CONNECTION_STATE_CONNECTED); |
| 3209 | return 0; |
| 3210 | } |
| 3211 | /*- End of function --------------------------------------------------------*/ |
| 3212 | |
| 3213 | static int v150_1_process_break(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3214 | { |
| 3215 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3216 | { |
| 3217 | span_log(&s->logging, SPAN_LOG_WARNING, "BREAK received before CONNECT. Ignored.\n"); |
| 3218 | return -1; |
| 3219 | } |
| 3220 | /*endif*/ |
| 3221 | if (len != 3) |
| 3222 | { |
| 3223 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid BREAK message length %d\n", len); |
| 3224 | return -1; |
| 3225 | } |
| 3226 | /*endif*/ |
| 3227 | |
| 3228 | s->far.break_source = (buf[1] >> 4) & 0x0F; |
| 3229 | s->far.break_type = buf[1] & 0x0F; |
| 3230 | s->far.break_duration = buf[2]; |
| 3231 | span_log(&s->logging, SPAN_LOG_FLOW, "Break source %s\n", v150_1_break_source_to_str(s->far.break_source)); |
| 3232 | span_log(&s->logging, SPAN_LOG_FLOW, "Break type %s\n", v150_1_break_type_to_str(s->far.break_type)); |
| 3233 | span_log(&s->logging, SPAN_LOG_FLOW, "Break len %d ms\n", s->far.break_duration*10); |
| 3234 | status_report(s, V150_1_STATUS_REASON_BREAK_RECEIVED); |
| 3235 | return 0; |
| 3236 | } |
| 3237 | /*- End of function --------------------------------------------------------*/ |
| 3238 | |
| 3239 | static int v150_1_process_break_ack(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3240 | { |
| 3241 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3242 | { |
| 3243 | span_log(&s->logging, SPAN_LOG_WARNING, "BREAKACK received before CONNECT. Ignored.\n"); |
| 3244 | return -1; |
| 3245 | } |
| 3246 | /*endif*/ |
| 3247 | if (len != 1) |
| 3248 | { |
| 3249 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid BREAKACK message length %d\n", len); |
| 3250 | return -1; |
| 3251 | } |
| 3252 | /*endif*/ |
| 3253 | |
| 3254 | return 0; |
| 3255 | } |
| 3256 | /*- End of function --------------------------------------------------------*/ |
| 3257 | |
| 3258 | static int v150_1_process_mr_event(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3259 | { |
| 3260 | int event; |
| 3261 | int reason; |
| 3262 | |
| 3263 | if (s->joint_connection_state < V150_1_STATE_INITED) |
| 3264 | { |
| 3265 | span_log(&s->logging, SPAN_LOG_WARNING, "MR-EVENT received before INIT. Ignored.\n"); |
| 3266 | return -1; |
| 3267 | } |
| 3268 | /*endif*/ |
| 3269 | if (len < 3) |
| 3270 | { |
| 3271 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid MR_EVENT message length %d\n", len); |
| 3272 | return -1; |
| 3273 | } |
| 3274 | /*endif*/ |
| 3275 | |
| 3276 | event = buf[1]; |
| 3277 | span_log(&s->logging, SPAN_LOG_FLOW, "MR-event %s (%d) received\n", v150_1_mr_event_type_to_str(event), event); |
| 3278 | switch (event) |
| 3279 | { |
| 3280 | case V150_1_MR_EVENT_ID_NULL: |
| 3281 | if (len != 3) |
| 3282 | { |
| 3283 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid MR-event message length %d\n", len); |
| 3284 | return -1; |
| 3285 | } |
| 3286 | /*endif*/ |
| 3287 | break; |
| 3288 | case V150_1_MR_EVENT_ID_RATE_RENEGOTIATION: |
| 3289 | case V150_1_MR_EVENT_ID_RETRAIN: |
| 3290 | if (len != 3) |
| 3291 | { |
| 3292 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid MR-event message length %d\n", len); |
| 3293 | return -1; |
| 3294 | } |
| 3295 | /*endif*/ |
| 3296 | reason = buf[2]; |
| 3297 | span_log(&s->logging, SPAN_LOG_FLOW, " Reason %d\n", reason); |
| 3298 | if (event == V150_1_MR_EVENT_ID_RETRAIN) |
| 3299 | { |
| 3300 | s->far.parms.connection_state = V150_1_STATE_RETRAIN; |
| 3301 | s->joint_connection_state = V150_1_STATE_RETRAIN; |
| 3302 | status_report(s, V150_1_STATUS_REASON_RATE_RETRAIN_RECEIVED); |
| 3303 | } |
| 3304 | else |
| 3305 | { |
| 3306 | s->far.parms.connection_state = V150_1_STATE_RATE_RENEGOTIATION; |
| 3307 | s->joint_connection_state = V150_1_STATE_RATE_RENEGOTIATION; |
| 3308 | status_report(s, V150_1_STATUS_REASON_RATE_RENEGOTIATION_RECEIVED); |
| 3309 | } |
| 3310 | /*endif*/ |
| 3311 | break; |
| 3312 | case V150_1_MR_EVENT_ID_PHYSUP: |
| 3313 | if (len != 10) |
| 3314 | { |
| 3315 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid MR-event message length %d\n", len); |
| 3316 | return -1; |
| 3317 | } |
| 3318 | /*endif*/ |
| 3319 | s->far.parms.selmod = (buf[3] >> 2) & 0x3F; |
| 3320 | s->far.parms.txsen = (buf[3] & 0x02) != 0; |
| 3321 | s->far.parms.rxsen = (buf[3] & 0x01) != 0; |
| 3322 | s->far.parms.tdsr = get_net_unaligned_uint16(&buf[4]); |
| 3323 | s->far.parms.rdsr = get_net_unaligned_uint16(&buf[6]); |
| 3324 | s->far.parms.txsr = buf[8]; |
| 3325 | s->far.parms.rxsr = buf[9]; |
| 3326 | |
| 3327 | span_log(&s->logging, SPAN_LOG_FLOW, " Selected modulation %s\n", v150_1_modulation_to_str(s->far.parms.selmod)); |
| 3328 | span_log(&s->logging, SPAN_LOG_FLOW, " Tx data signalling rate %d\n", s->far.parms.tdsr); |
| 3329 | span_log(&s->logging, SPAN_LOG_FLOW, " Rx data signalling rate %d\n", s->far.parms.rdsr); |
| 3330 | if (s->far.parms.txsen) |
| 3331 | span_log(&s->logging, SPAN_LOG_FLOW, " Tx symbol rate %s\n", v150_1_symbol_rate_to_str(s->far.parms.txsr)); |
| 3332 | /*endif*/ |
| 3333 | if (s->far.parms.rxsen) |
| 3334 | span_log(&s->logging, SPAN_LOG_FLOW, " Rx symbol rate %s\n", v150_1_symbol_rate_to_str(s->far.parms.rxsr)); |
| 3335 | /*endif*/ |
| 3336 | |
| 3337 | /* TODO: report these parameters */ |
| 3338 | |
| 3339 | s->far.parms.connection_state = V150_1_STATE_PHYSUP; |
| 3340 | if (s->near.parms.connection_state >= V150_1_STATE_PHYSUP) |
| 3341 | s->joint_connection_state = V150_1_STATE_PHYSUP; |
| 3342 | /*endif*/ |
| 3343 | status_report(s, V150_1_STATUS_REASON_CONNECTION_STATE_PHYSUP); |
| 3344 | break; |
| 3345 | default: |
| 3346 | span_log(&s->logging, SPAN_LOG_WARNING, "Unknown MR-event type %d received\n", event); |
| 3347 | break; |
| 3348 | } |
| 3349 | /*endif*/ |
| 3350 | return 0; |
| 3351 | } |
| 3352 | /*- End of function --------------------------------------------------------*/ |
| 3353 | |
| 3354 | static int v150_1_process_cleardown(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3355 | { |
| 3356 | if (s->joint_connection_state < V150_1_STATE_INITED) |
| 3357 | { |
| 3358 | span_log(&s->logging, SPAN_LOG_WARNING, "CLEARDOWN received before INIT. Ignored.\n"); |
| 3359 | return -1; |
| 3360 | } |
| 3361 | /*endif*/ |
| 3362 | if (len != 4) |
| 3363 | { |
| 3364 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid CLEARDOWN message length %d\n", len); |
| 3365 | return -1; |
| 3366 | } |
| 3367 | /*endif*/ |
| 3368 | |
| 3369 | s->far.parms.cleardown_reason = buf[1]; |
| 3370 | span_log(&s->logging, |
| 3371 | SPAN_LOG_FLOW, |
| 3372 | " Reason %s\n", |
| 3373 | v150_1_cleardown_reason_to_str(s->far.parms.cleardown_reason)); |
| 3374 | // vendor = buf[2]; |
| 3375 | // vendor_info = buf[3]; |
| 3376 | /* A cleardown moves everything back to square one. */ |
| 3377 | s->far.parms.connection_state = V150_1_STATE_IDLE; |
| 3378 | status_report(s, V150_1_STATUS_REASON_CONNECTION_STATE_CHANGED); |
| 3379 | return 0; |
| 3380 | } |
| 3381 | /*- End of function --------------------------------------------------------*/ |
| 3382 | |
| 3383 | static int v150_1_process_prof_xchg(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3384 | { |
| 3385 | if (s->joint_connection_state < V150_1_STATE_INITED) |
| 3386 | { |
| 3387 | span_log(&s->logging, SPAN_LOG_WARNING, "PROF_XCHG received before INIT. Ignored.\n"); |
| 3388 | return -1; |
| 3389 | } |
| 3390 | /*endif*/ |
| 3391 | if (len != 19) |
| 3392 | { |
| 3393 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid PROF_XCHG message length %d\n", len); |
| 3394 | return -1; |
| 3395 | } |
| 3396 | /*endif*/ |
| 3397 | |
| 3398 | /* The following have 3 way options - no, yes and unknown */ |
| 3399 | s->far.parms.v42_lapm_supported = (buf[1] & 0xC0) == 0x40; |
| 3400 | s->far.parms.v42_annex_a_supported = (buf[1] & 0x30) == 0x10; |
| 3401 | s->far.parms.v44_supported = (buf[1] & 0x0C) == 0x04; |
| 3402 | s->far.parms.v42bis_supported = (buf[1] & 0x03) == 0x01; |
| 3403 | s->far.parms.mnp5_supported = (buf[2] & 0xC0) == 0x40; |
| 3404 | |
| 3405 | s->far.parms.v42bis_p0 = buf[3]; |
| 3406 | s->far.parms.v42bis_p1 = get_net_unaligned_uint16(&buf[4]); |
| 3407 | s->far.parms.v42bis_p2 = buf[6]; |
| 3408 | s->far.parms.v44_c0 = buf[7]; |
| 3409 | s->far.parms.v44_p0 = buf[8]; |
| 3410 | s->far.parms.v44_p1t = get_net_unaligned_uint16(&buf[9]); |
| 3411 | s->far.parms.v44_p1r = get_net_unaligned_uint16(&buf[11]); |
| 3412 | s->far.parms.v44_p2t = buf[13]; |
| 3413 | s->far.parms.v44_p2r = buf[14]; |
| 3414 | s->far.parms.v44_p3t = get_net_unaligned_uint16(&buf[15]); |
| 3415 | s->far.parms.v44_p3r = get_net_unaligned_uint16(&buf[17]); |
| 3416 | |
| 3417 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42 LAPM %ssupported\n", (s->far.parms.v42_lapm_supported) ? "" : "not "); |
| 3418 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42 Annex A %ssupported\n", (s->far.parms.v42_annex_a_supported) ? "" : "not "); |
| 3419 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 %ssupported\n", (s->far.parms.v44_supported) ? "" : "not "); |
| 3420 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42bis %ssupported\n", (s->far.parms.v42bis_supported) ? "" : "not "); |
| 3421 | span_log(&s->logging, SPAN_LOG_FLOW, " MNP5 %ssupported\n", (s->far.parms.mnp5_supported) ? "" : "not "); |
| 3422 | |
| 3423 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42bis P0 %d\n", s->far.parms.v42bis_p0); |
| 3424 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42bis P1 %d\n", s->far.parms.v42bis_p1); |
| 3425 | span_log(&s->logging, SPAN_LOG_FLOW, " V.42bis P2 %d\n", s->far.parms.v42bis_p2); |
| 3426 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 C0 %d\n", s->far.parms.v44_c0); |
| 3427 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P1 %d\n", s->far.parms.v44_p0); |
| 3428 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P1T %d\n", s->far.parms.v44_p1t); |
| 3429 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P1R %d\n", s->far.parms.v44_p1r); |
| 3430 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P2T %d\n", s->far.parms.v44_p2t); |
| 3431 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P2R %d\n", s->far.parms.v44_p2r); |
| 3432 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P3T %d\n", s->far.parms.v44_p3t); |
| 3433 | span_log(&s->logging, SPAN_LOG_FLOW, " V.44 P3R %d\n", s->far.parms.v44_p3r); |
| 3434 | |
| 3435 | /* TODO: */ |
| 3436 | return 0; |
| 3437 | } |
| 3438 | /*- End of function --------------------------------------------------------*/ |
| 3439 | |
| 3440 | static int v150_1_process_i_raw_octet(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3441 | { |
| 3442 | int i; |
| 3443 | int l; |
| 3444 | int n; |
| 3445 | int header; |
| 3446 | |
| 3447 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3448 | { |
| 3449 | span_log(&s->logging, SPAN_LOG_WARNING, "I_RAW-OCTET received before CONNECT. Ignored.\n"); |
| 3450 | return -1; |
| 3451 | } |
| 3452 | /*endif*/ |
| 3453 | if (len < 2) |
| 3454 | { |
| 3455 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_RAW-OCTET message length %d\n", len); |
| 3456 | return -1; |
| 3457 | } |
| 3458 | /*endif*/ |
| 3459 | l = buf[1] & 0x7F; |
| 3460 | if ((buf[1] & 0x80) != 0) |
| 3461 | { |
| 3462 | n = 1; |
| 3463 | header = 1; |
| 3464 | } |
| 3465 | else |
| 3466 | { |
| 3467 | n = buf[1] + 2; |
| 3468 | header = 2; |
| 3469 | } |
| 3470 | /*endif*/ |
| 3471 | if (len != l + header) |
| 3472 | { |
| 3473 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_RAW-OCTET message length %d\n", len); |
| 3474 | return -1; |
| 3475 | } |
| 3476 | /*endif*/ |
| 3477 | for (i = 0; i < n; i++) |
| 3478 | { |
| 3479 | if (s->rx_data_handler) |
| 3480 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[header], len - header, -1); |
| 3481 | /*endif*/ |
| 3482 | } |
| 3483 | /*endif*/ |
| 3484 | return 0; |
| 3485 | } |
| 3486 | /*- End of function --------------------------------------------------------*/ |
| 3487 | |
| 3488 | static int v150_1_process_i_raw_bit(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3489 | { |
| 3490 | int i; |
| 3491 | int l; |
| 3492 | int p; |
| 3493 | int n; |
| 3494 | int header; |
| 3495 | |
| 3496 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3497 | { |
| 3498 | span_log(&s->logging, SPAN_LOG_WARNING, "I_RAW-BIT received before CONNECT. Ignored.\n"); |
| 3499 | return -1; |
| 3500 | } |
| 3501 | /*endif*/ |
| 3502 | if (len < 2) |
| 3503 | { |
| 3504 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_RAW-BIT message length %d\n", len); |
| 3505 | return -1; |
| 3506 | } |
| 3507 | /*endif*/ |
| 3508 | if ((buf[1] & 0x80) == 0) |
| 3509 | { |
| 3510 | if ((buf[1] & 0x40) == 0) |
| 3511 | { |
| 3512 | l = buf[1] & 0x3F; |
| 3513 | p = 0; |
| 3514 | } |
| 3515 | else |
| 3516 | { |
| 3517 | l = (buf[1] >> 3) & 0x07; |
| 3518 | p = buf[1] & 0x07; |
| 3519 | } |
| 3520 | /*endif*/ |
| 3521 | n = 1; |
| 3522 | header = 1; |
| 3523 | } |
| 3524 | else |
| 3525 | { |
| 3526 | l = (buf[1] >> 3) & 0x0F; |
| 3527 | p = buf[1] & 0x07; |
| 3528 | n = buf[2] + 2; |
| 3529 | header = 2; |
| 3530 | } |
| 3531 | /*endif*/ |
| 3532 | if (len != l + header) |
| 3533 | { |
| 3534 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_RAW-BIT message length %d\n", len); |
| 3535 | return -1; |
| 3536 | } |
| 3537 | /*endif*/ |
| 3538 | for (i = 0; i < n; i++) |
| 3539 | { |
| 3540 | if (s->rx_data_handler) |
| 3541 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[header], len - header, -1); |
| 3542 | /*endif*/ |
| 3543 | } |
| 3544 | /*endfor*/ |
| 3545 | return 0; |
| 3546 | } |
| 3547 | /*- End of function --------------------------------------------------------*/ |
| 3548 | |
| 3549 | static int v150_1_process_i_octet(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3550 | { |
| 3551 | int header; |
| 3552 | |
| 3553 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3554 | { |
| 3555 | span_log(&s->logging, SPAN_LOG_WARNING, "I_OCTET received before CONNECT. Ignored.\n"); |
| 3556 | return -1; |
| 3557 | } |
| 3558 | /*endif*/ |
| 3559 | if (len < 2) |
| 3560 | { |
| 3561 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_OCTET message length %d\n", len); |
| 3562 | return -1; |
| 3563 | } |
| 3564 | /*endif*/ |
| 3565 | if (s->far.parms.i_octet_with_dlci_available) |
| 3566 | { |
| 3567 | /* DLCI is one or two bytes (usually just 1). The low bit of each byte is an extension |
| 3568 | bit, allowing for a variable number of bytes. */ |
| 3569 | if (len < 2) |
| 3570 | { |
| 3571 | span_log(&s->logging, SPAN_LOG_WARNING, "I_OCTET with DLCI has no DLCI field\n"); |
| 3572 | header = 1000; |
| 3573 | } |
| 3574 | else |
| 3575 | { |
| 3576 | if ((buf[1] & 0x01) == 0) |
| 3577 | { |
| 3578 | if ((buf[2] & 0x01) == 0) |
| 3579 | span_log(&s->logging, SPAN_LOG_WARNING, "I_OCTET with DLCI has bad DLCI field\n"); |
| 3580 | /*endif*/ |
| 3581 | header = 3; |
| 3582 | s->far.parms.dlci = get_net_unaligned_uint16(&buf[1]); |
| 3583 | } |
| 3584 | else |
| 3585 | { |
| 3586 | header = 2; |
| 3587 | s->far.parms.dlci = buf[1]; |
| 3588 | } |
| 3589 | /*endif*/ |
| 3590 | } |
| 3591 | /*endif*/ |
| 3592 | } |
| 3593 | else |
| 3594 | { |
| 3595 | header = 1; |
| 3596 | } |
| 3597 | /*endif*/ |
| 3598 | if (len > header) |
| 3599 | { |
| 3600 | if (s->rx_data_handler) |
| 3601 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[header], len - header, -1); |
| 3602 | /*endif*/ |
| 3603 | } |
| 3604 | /*endif*/ |
| 3605 | return 0; |
| 3606 | } |
| 3607 | /*- End of function --------------------------------------------------------*/ |
| 3608 | |
| 3609 | static int v150_1_process_i_char_stat(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3610 | { |
| 3611 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3612 | { |
| 3613 | span_log(&s->logging, SPAN_LOG_WARNING, "I_CHAR-STAT received before CONNECT. Ignored.\n"); |
| 3614 | return -1; |
| 3615 | } |
| 3616 | /*endif*/ |
| 3617 | if (len < 2) |
| 3618 | { |
| 3619 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_CHAR-STAT message length %d\n", len); |
| 3620 | return -1; |
| 3621 | } |
| 3622 | /*endif*/ |
| 3623 | if (s->far.parms.data_format_code != buf[1]) |
| 3624 | { |
| 3625 | /* Every packet in a session should have the same data format code */ |
| 3626 | s->far.parms.data_format_code = buf[1]; |
| 3627 | status_report(s, V150_1_STATUS_REASON_DATA_FORMAT_CHANGED); |
| 3628 | } |
| 3629 | /*endif*/ |
| 3630 | if (len > 2) |
| 3631 | { |
| 3632 | if (s->rx_data_handler) |
| 3633 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[2], len - 2, -1); |
| 3634 | /*endif*/ |
| 3635 | } |
| 3636 | /*endif*/ |
| 3637 | return 0; |
| 3638 | } |
| 3639 | /*- End of function --------------------------------------------------------*/ |
| 3640 | |
| 3641 | static int v150_1_process_i_char_dyn(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3642 | { |
| 3643 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3644 | { |
| 3645 | span_log(&s->logging, SPAN_LOG_WARNING, "I_CHAR-DYN received before CONNECT. Ignored.\n"); |
| 3646 | return -1; |
| 3647 | } |
| 3648 | /*endif*/ |
| 3649 | if (len < 2) |
| 3650 | { |
| 3651 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_CHAR-DYN message length %d\n", len); |
| 3652 | return -1; |
| 3653 | } |
| 3654 | /*endif*/ |
| 3655 | if (s->far.parms.data_format_code != buf[1]) |
| 3656 | { |
| 3657 | s->far.parms.data_format_code = buf[1]; |
| 3658 | status_report(s, V150_1_STATUS_REASON_DATA_FORMAT_CHANGED); |
| 3659 | } |
| 3660 | /*endif*/ |
| 3661 | if (len > 2) |
| 3662 | { |
| 3663 | if (s->rx_data_handler) |
| 3664 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[2], len - 2, -1); |
| 3665 | /*endif*/ |
| 3666 | } |
| 3667 | /*endif*/ |
| 3668 | return 0; |
| 3669 | } |
| 3670 | /*- End of function --------------------------------------------------------*/ |
| 3671 | |
| 3672 | static int v150_1_process_i_frame(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3673 | { |
| 3674 | int res; |
| 3675 | int data_frame_state; |
| 3676 | |
| 3677 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3678 | { |
| 3679 | span_log(&s->logging, SPAN_LOG_WARNING, "I_FRAME received before CONNECT. Ignored.\n"); |
| 3680 | return -1; |
| 3681 | } |
| 3682 | /*endif*/ |
| 3683 | if (len < 2) |
| 3684 | { |
| 3685 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_FRAME message length %d\n", len); |
| 3686 | return -1; |
| 3687 | } |
| 3688 | /*endif*/ |
| 3689 | res = (buf[1] >> 2) & 0x3F; |
| 3690 | if (res) |
| 3691 | span_log(&s->logging, SPAN_LOG_WARNING, "I_FRAME with non-zero 'res' field\n"); |
| 3692 | /*endif*/ |
| 3693 | data_frame_state = buf[1] & 0x03; |
| 3694 | if (len > 2) |
| 3695 | { |
| 3696 | if (s->rx_data_handler) |
| 3697 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[2], len - 2, -1); |
| 3698 | /*endif*/ |
| 3699 | } |
| 3700 | /*endif*/ |
| 3701 | return 0; |
| 3702 | } |
| 3703 | /*- End of function --------------------------------------------------------*/ |
| 3704 | |
| 3705 | static int v150_1_process_i_octet_cs(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3706 | { |
| 3707 | int fill; |
| 3708 | int character_seq_no; |
| 3709 | |
| 3710 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3711 | { |
| 3712 | span_log(&s->logging, SPAN_LOG_WARNING, "I_OCTET-CS received before CONNECT. Ignored.\n"); |
| 3713 | return -1; |
| 3714 | } |
| 3715 | /*endif*/ |
| 3716 | if (len < 3) |
| 3717 | { |
| 3718 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_OCTET-CS message length %d\n", len); |
| 3719 | return -1; |
| 3720 | } |
| 3721 | /*endif*/ |
| 3722 | character_seq_no = get_net_unaligned_uint16(&buf[1]); |
| 3723 | /* Check for a gap in the data */ |
| 3724 | fill = (character_seq_no - s->far.parms.octet_cs_next_seq_no) & 0xFFFF; |
| 3725 | if (s->rx_data_handler) |
| 3726 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[3], len - 3, fill); |
| 3727 | /*endif*/ |
| 3728 | s->far.parms.octet_cs_next_seq_no = (character_seq_no + len - 3) & 0xFFFF; |
| 3729 | return 0; |
| 3730 | } |
| 3731 | /*- End of function --------------------------------------------------------*/ |
| 3732 | |
| 3733 | static int v150_1_process_i_char_stat_cs(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3734 | { |
| 3735 | int fill; |
| 3736 | int character_seq_no; |
| 3737 | |
| 3738 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3739 | { |
| 3740 | span_log(&s->logging, SPAN_LOG_WARNING, "I_CHAR-STAT-CS received before CONNECT. Ignored.\n"); |
| 3741 | return -1; |
| 3742 | } |
| 3743 | /*endif*/ |
| 3744 | if (len < 4) |
| 3745 | { |
| 3746 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_CHAR-STAT-CS message length %d\n", len); |
| 3747 | return -1; |
| 3748 | } |
| 3749 | /*endif*/ |
| 3750 | if (s->far.parms.data_format_code != buf[1]) |
| 3751 | { |
| 3752 | /* Every packet in a session should have the same data format code */ |
| 3753 | s->far.parms.data_format_code = buf[1]; |
| 3754 | status_report(s, V150_1_STATUS_REASON_DATA_FORMAT_CHANGED); |
| 3755 | } |
| 3756 | /*endif*/ |
| 3757 | character_seq_no = get_net_unaligned_uint16(&buf[2]); |
| 3758 | /* Check for a gap in the data */ |
| 3759 | fill = (character_seq_no - s->far.parms.octet_cs_next_seq_no) & 0xFFFF; |
| 3760 | if (s->rx_data_handler) |
| 3761 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[4], len - 4, fill); |
| 3762 | /*endif*/ |
| 3763 | s->far.parms.octet_cs_next_seq_no = (character_seq_no + len - 4) & 0xFFFF; |
| 3764 | return 0; |
| 3765 | } |
| 3766 | /*- End of function --------------------------------------------------------*/ |
| 3767 | |
| 3768 | static int v150_1_process_i_char_dyn_cs(v150_1_state_t *s, const uint8_t buf[], int len) |
| 3769 | { |
| 3770 | int fill; |
| 3771 | int character_seq_no; |
| 3772 | |
| 3773 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
| 3774 | { |
| 3775 | span_log(&s->logging, SPAN_LOG_WARNING, "I_CHAR-DYN-CS received before CONNECT. Ignored.\n"); |
| 3776 | return -1; |
| 3777 | } |
| 3778 | /*endif*/ |
| 3779 | if (len < 4) |
| 3780 | { |
| 3781 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_CHAR-DYN-CS message length %d\n", len); |
| 3782 | return -1; |
| 3783 | } |
| 3784 | /*endif*/ |
| 3785 | if (s->far.parms.data_format_code != buf[1]) |
| 3786 | { |
| 3787 | s->far.parms.data_format_code = buf[1]; |
| 3788 | status_report(s, V150_1_STATUS_REASON_DATA_FORMAT_CHANGED); |
| 3789 | } |
| 3790 | /*endif*/ |
| 3791 | character_seq_no = get_net_unaligned_uint16(&buf[2]); |
| 3792 | /* Check for a gap in the data */ |
| 3793 | fill = (character_seq_no - s->far.parms.octet_cs_next_seq_no) & 0xFFFF; |
| 3794 | if (s->rx_data_handler) |
| 3795 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[4], len - 4, fill); |
| 3796 | /*endif*/ |
| 3797 | s->far.parms.octet_cs_next_seq_no = (character_seq_no + len - 4) & 0xFFFF; |
| 3798 | return 0; |
| 3799 | } |
| 3800 | /*- End of function --------------------------------------------------------*/ |
| 3801 | |
| 3802 | static int process_rx_sprt_msg(void *user_data, int chan, int seq_no, const uint8_t buf[], int len) |
| 3803 | { |
| 3804 | int res; |
| 3805 | int msg_id; |
| 3806 | v150_1_state_t *s; |
| 3807 | |
| 3808 | s = (v150_1_state_t *) user_data; |
| 3809 | |
| 3810 | span_log(&s->logging, SPAN_LOG_FLOW, "%s (%d) seq %d\n", sprt_transmission_channel_to_str(chan), chan, seq_no); |
| 3811 | span_log_buf(&s->logging, SPAN_LOG_FLOW, "", buf, len); |
| 3812 | |
| 3813 | if (chan < SPRT_TCID_MIN || chan > SPRT_TCID_MAX) |
| 3814 | { |
| 3815 | span_log(&s->logging, SPAN_LOG_ERROR, "Packet arrived on invalid channel %d\n", chan); |
| 3816 | return -1; |
| 3817 | } |
| 3818 | /*endif*/ |
| 3819 | if ((buf[0] & 0x80)) |
| 3820 | { |
| 3821 | span_log(&s->logging, SPAN_LOG_FLOW, "Don't know how to handle this\n"); |
| 3822 | return -1; |
| 3823 | } |
| 3824 | /*endif*/ |
| 3825 | msg_id = buf[0] & 0x7F; |
| 3826 | span_log(&s->logging, SPAN_LOG_FLOW, "Message %s received on channel %d, seq no %d\n", v150_1_msg_id_to_str(msg_id), chan, seq_no); |
| 3827 | |
| 3828 | if (msg_id < sizeof(channel_check)) |
| 3829 | { |
| 3830 | if ((channel_check[msg_id] & (1 << chan)) == 0) |
| 3831 | { |
| 3832 | span_log(&s->logging, SPAN_LOG_FLOW, "Bad channel for message ID %d\n", msg_id); |
| 3833 | return -1; |
| 3834 | } |
| 3835 | /*endif*/ |
| 3836 | } |
| 3837 | /*endif*/ |
| 3838 | |
| 3839 | switch (msg_id) |
| 3840 | { |
| 3841 | case V150_1_MSGID_NULL: |
| 3842 | res = v150_1_process_null(s, buf, len); |
| 3843 | break; |
| 3844 | case V150_1_MSGID_INIT: |
| 3845 | res = v150_1_process_init(s, buf, len); |
| 3846 | break; |
| 3847 | case V150_1_MSGID_XID_XCHG: |
| 3848 | res = v150_1_process_xid_xchg(s, buf, len); |
| 3849 | break; |
| 3850 | case V150_1_MSGID_JM_INFO: |
| 3851 | res = v150_1_process_jm_info(s, buf, len); |
| 3852 | break; |
| 3853 | case V150_1_MSGID_START_JM: |
| 3854 | res = v150_1_process_start_jm(s, buf, len); |
| 3855 | break; |
| 3856 | case V150_1_MSGID_CONNECT: |
| 3857 | res = v150_1_process_connect(s, buf, len); |
| 3858 | break; |
| 3859 | case V150_1_MSGID_BREAK: |
| 3860 | res = v150_1_process_break(s, buf, len); |
| 3861 | break; |
| 3862 | case V150_1_MSGID_BREAKACK: |
| 3863 | res = v150_1_process_break_ack(s, buf, len); |
| 3864 | break; |
| 3865 | case V150_1_MSGID_MR_EVENT: |
| 3866 | res = v150_1_process_mr_event(s, buf, len); |
| 3867 | break; |
| 3868 | case V150_1_MSGID_CLEARDOWN: |
| 3869 | res = v150_1_process_cleardown(s, buf, len); |
| 3870 | break; |
| 3871 | case V150_1_MSGID_PROF_XCHG: |
| 3872 | res = v150_1_process_prof_xchg(s, buf, len); |
| 3873 | break; |
| 3874 | case V150_1_MSGID_I_RAW_OCTET: |
| 3875 | res = v150_1_process_i_raw_octet(s, buf, len); |
| 3876 | break; |
| 3877 | case V150_1_MSGID_I_RAW_BIT: |
| 3878 | res = v150_1_process_i_raw_bit(s, buf, len); |
| 3879 | break; |
| 3880 | case V150_1_MSGID_I_OCTET: |
| 3881 | res = v150_1_process_i_octet(s, buf, len); |
| 3882 | break; |
| 3883 | case V150_1_MSGID_I_CHAR_STAT: |
| 3884 | res = v150_1_process_i_char_stat(s, buf, len); |
| 3885 | break; |
| 3886 | case V150_1_MSGID_I_CHAR_DYN: |
| 3887 | res = v150_1_process_i_char_dyn(s, buf, len); |
| 3888 | break; |
| 3889 | case V150_1_MSGID_I_FRAME: |
| 3890 | res = v150_1_process_i_frame(s, buf, len); |
| 3891 | break; |
| 3892 | case V150_1_MSGID_I_OCTET_CS: |
| 3893 | res = v150_1_process_i_octet_cs(s, buf, len); |
| 3894 | break; |
| 3895 | case V150_1_MSGID_I_CHAR_STAT_CS: |
| 3896 | res = v150_1_process_i_char_stat_cs(s, buf, len); |
| 3897 | break; |
| 3898 | case V150_1_MSGID_I_CHAR_DYN_CS: |
| 3899 | res = v150_1_process_i_char_dyn_cs(s, buf, len); |
| 3900 | break; |
| 3901 | default: |
| 3902 | span_log(&s->logging, SPAN_LOG_FLOW, "Bad msg ID %d\n", msg_id); |
| 3903 | res = -1; |
| 3904 | break; |
| 3905 | } |
| 3906 | /*endswitch*/ |
| 3907 | if (res < 0) |
| 3908 | span_log(&s->logging, SPAN_LOG_FLOW, "Bad message\n"); |
| 3909 | /*endif*/ |
| 3910 | return res; |
| 3911 | } |
| 3912 | /*- End of function --------------------------------------------------------*/ |
| 3913 | |
| 3914 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_test_rx_sprt_msg(v150_1_state_t *s, int chan, int seq_no, const uint8_t buf[], int len) |
| 3915 | { |
| 3916 | process_rx_sprt_msg((void *) s, chan, seq_no, buf, len); |
| 3917 | return 0; |
| 3918 | } |
| 3919 | /*- End of function --------------------------------------------------------*/ |
| 3920 | |
| 3921 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_local_busy(v150_1_state_t *s, bool_Bool busy) |
| 3922 | { |
| 3923 | bool_Bool previous_busy; |
| 3924 | |
| 3925 | previous_busy = s->near.parms.busy; |
| 3926 | s->near.parms.busy = busy; |
| 3927 | return previous_busy; |
| 3928 | } |
| 3929 | /*- End of function --------------------------------------------------------*/ |
| 3930 | |
| 3931 | SPAN_DECLARE(bool)__attribute__((visibility("default"))) _Bool v150_1_get_far_busy_status(v150_1_state_t *s) |
| 3932 | { |
| 3933 | return s->far.parms.busy; |
| 3934 | } |
| 3935 | /*- End of function --------------------------------------------------------*/ |
| 3936 | |
| 3937 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_local_tc_payload_bytes(v150_1_state_t *s, int channel, int max_len) |
| 3938 | { |
| 3939 | if (channel < SPRT_TCID_MIN || channel > SPRT_TCID_MAX) |
| 3940 | return -1; |
| 3941 | /*endif*/ |
| 3942 | if (max_len < channel_parm_limits[channel].min_payload_bytes |
| 3943 | || |
| 3944 | max_len > channel_parm_limits[channel].max_payload_bytes) |
| 3945 | { |
| 3946 | return -1; |
| 3947 | } |
| 3948 | /*endif*/ |
| 3949 | s->near.max_payload_bytes[channel] = max_len; |
| 3950 | return 0; |
| 3951 | } |
| 3952 | /*- End of function --------------------------------------------------------*/ |
| 3953 | |
| 3954 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_get_local_tc_payload_bytes(v150_1_state_t *s, int channel) |
| 3955 | { |
| 3956 | if (channel < SPRT_TCID_MIN || channel > SPRT_TCID_MAX) |
| 3957 | return -1; |
| 3958 | /*endif*/ |
| 3959 | return s->near.max_payload_bytes[channel]; |
| 3960 | } |
| 3961 | /*- End of function --------------------------------------------------------*/ |
| 3962 | |
| 3963 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_info_stream_tx_mode(v150_1_state_t *s, int channel, int msg_id) |
| 3964 | { |
| 3965 | if (channel < SPRT_TCID_MIN || channel > SPRT_TCID_MAX) |
| 3966 | return -1; |
| 3967 | /*endif*/ |
| 3968 | switch (msg_id) |
| 3969 | { |
| 3970 | case V150_1_MSGID_I_RAW_OCTET: |
| 3971 | case V150_1_MSGID_I_RAW_BIT: |
| 3972 | case V150_1_MSGID_I_OCTET: |
| 3973 | case V150_1_MSGID_I_CHAR_STAT: |
| 3974 | case V150_1_MSGID_I_CHAR_DYN: |
| 3975 | case V150_1_MSGID_I_FRAME: |
| 3976 | case V150_1_MSGID_I_OCTET_CS: |
| 3977 | case V150_1_MSGID_I_CHAR_STAT_CS: |
| 3978 | case V150_1_MSGID_I_CHAR_DYN_CS: |
| 3979 | s->near.info_stream_channel = channel; |
| 3980 | s->near.info_stream_msg_id = msg_id; |
| 3981 | break; |
| 3982 | default: |
| 3983 | return -1; |
| 3984 | } |
| 3985 | return 0; |
| 3986 | } |
| 3987 | /*- End of function --------------------------------------------------------*/ |
| 3988 | |
| 3989 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_info_stream_msg_priorities(v150_1_state_t *s, int msg_ids[]) |
| 3990 | { |
| 3991 | int i; |
| 3992 | |
| 3993 | /* Check the list is valid */ |
| 3994 | for (i = 0; i < 10 && msg_ids[i] >= 0; i++) |
| 3995 | { |
| 3996 | switch(msg_ids[i]) |
| 3997 | { |
| 3998 | case V150_1_MSGID_I_RAW_OCTET: |
| 3999 | case V150_1_MSGID_I_RAW_BIT: |
| 4000 | case V150_1_MSGID_I_OCTET: |
| 4001 | case V150_1_MSGID_I_CHAR_STAT: |
| 4002 | case V150_1_MSGID_I_CHAR_DYN: |
| 4003 | case V150_1_MSGID_I_FRAME: |
| 4004 | case V150_1_MSGID_I_OCTET_CS: |
| 4005 | case V150_1_MSGID_I_CHAR_STAT_CS: |
| 4006 | case V150_1_MSGID_I_CHAR_DYN_CS: |
| 4007 | /* OK */ |
| 4008 | break; |
| 4009 | default: |
| 4010 | return -1; |
| 4011 | } |
| 4012 | /*endswitch*/ |
| 4013 | } |
| 4014 | /*endfor*/ |
| 4015 | for (i = 0; i < 10 && msg_ids[i] >= 0; i++) |
| 4016 | { |
| 4017 | s->near.info_msg_preferences[i] = msg_ids[i]; |
| 4018 | } |
| 4019 | /*endfor*/ |
| 4020 | if (i < 10) |
| 4021 | s->near.info_msg_preferences[i] = -1; |
| 4022 | /*endif*/ |
| 4023 | return 0; |
| 4024 | } |
| 4025 | /*- End of function --------------------------------------------------------*/ |
| 4026 | |
| 4027 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_modulation(v150_1_state_t *s, int modulation) |
| 4028 | { |
| 4029 | s->near.parms.selmod = modulation; |
| 4030 | return 0; |
| 4031 | } |
| 4032 | /*- End of function --------------------------------------------------------*/ |
| 4033 | |
| 4034 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_compression_direction(v150_1_state_t *s, int compression_direction) |
| 4035 | { |
| 4036 | s->near.parms.selected_compression_direction = compression_direction; |
| 4037 | return 0; |
| 4038 | } |
| 4039 | /*- End of function --------------------------------------------------------*/ |
| 4040 | |
| 4041 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_compression(v150_1_state_t *s, int compression) |
| 4042 | { |
| 4043 | s->near.parms.selected_compression = compression; |
| 4044 | return 0; |
| 4045 | } |
| 4046 | /*- End of function --------------------------------------------------------*/ |
| 4047 | |
| 4048 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_compression_parameters(v150_1_state_t *s, |
| 4049 | int tx_dictionary_size, |
| 4050 | int rx_dictionary_size, |
| 4051 | int tx_string_length, |
| 4052 | int rx_string_length, |
| 4053 | int tx_history_size, |
| 4054 | int rx_history_size) |
| 4055 | { |
| 4056 | s->near.parms.compression_tx_dictionary_size = tx_dictionary_size; |
| 4057 | s->near.parms.compression_rx_dictionary_size = rx_dictionary_size; |
| 4058 | s->near.parms.compression_tx_string_length = tx_string_length; |
| 4059 | s->near.parms.compression_rx_string_length = rx_string_length; |
| 4060 | /* These are only relevant for V.44 */ |
| 4061 | s->near.parms.compression_tx_history_size = tx_history_size; |
| 4062 | s->near.parms.compression_rx_history_size = rx_history_size; |
| 4063 | return 0; |
| 4064 | } |
| 4065 | /*- End of function --------------------------------------------------------*/ |
| 4066 | |
| 4067 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_error_correction(v150_1_state_t *s, int error_correction) |
| 4068 | { |
| 4069 | s->near.parms.selected_error_correction = error_correction; |
| 4070 | return 0; |
| 4071 | } |
| 4072 | /*- End of function --------------------------------------------------------*/ |
| 4073 | |
| 4074 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_tx_symbol_rate(v150_1_state_t *s, bool_Bool enable, int rate) |
| 4075 | { |
| 4076 | s->near.parms.txsen = enable; |
| 4077 | s->near.parms.txsr = (enable) ? rate : 0; |
| 4078 | return 0; |
| 4079 | } |
| 4080 | /*- End of function --------------------------------------------------------*/ |
| 4081 | |
| 4082 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_rx_symbol_rate(v150_1_state_t *s, bool_Bool enable, int rate) |
| 4083 | { |
| 4084 | s->near.parms.rxsen = enable; |
| 4085 | s->near.parms.rxsr = (enable) ? rate : 0; |
| 4086 | return 0; |
| 4087 | } |
| 4088 | /*- End of function --------------------------------------------------------*/ |
| 4089 | |
| 4090 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_tx_data_signalling_rate(v150_1_state_t *s, int rate) |
| 4091 | { |
| 4092 | s->near.parms.tdsr = rate; |
| 4093 | return 0; |
| 4094 | } |
| 4095 | /*- End of function --------------------------------------------------------*/ |
| 4096 | |
| 4097 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_rx_data_signalling_rate(v150_1_state_t *s, int rate) |
| 4098 | { |
| 4099 | s->near.parms.rdsr = rate; |
| 4100 | return 0; |
| 4101 | } |
| 4102 | /*- End of function --------------------------------------------------------*/ |
| 4103 | |
| 4104 | static void set_joint_cdscselect(v150_1_state_t *s) |
| 4105 | { |
| 4106 | /* See Table 32/V.150.1 */ |
| 4107 | if (s->near.parms.cdscselect == V150_1_CDSCSELECT_INDETERMINATE |
| 4108 | || |
| 4109 | s->far.parms.cdscselect == V150_1_CDSCSELECT_INDETERMINATE) |
| 4110 | { |
| 4111 | s->cdscselect = V150_1_CDSCSELECT_INDETERMINATE; |
| 4112 | } |
| 4113 | else if (s->near.parms.cdscselect == V150_1_CDSCSELECT_AUDIO_RFC4733 |
| 4114 | || |
| 4115 | s->far.parms.cdscselect == V150_1_CDSCSELECT_AUDIO_RFC4733) |
| 4116 | { |
| 4117 | s->cdscselect = V150_1_CDSCSELECT_AUDIO_RFC4733; |
| 4118 | } |
| 4119 | else if (s->near.parms.cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED |
| 4120 | || |
| 4121 | s->far.parms.cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED) |
| 4122 | { |
| 4123 | s->cdscselect = V150_1_CDSCSELECT_VBD_PREFERRED; |
| 4124 | } |
| 4125 | else |
| 4126 | { |
| 4127 | s->cdscselect = V150_1_CDSCSELECT_MIXED; |
| 4128 | } |
| 4129 | /*endif*/ |
| 4130 | } |
| 4131 | /*- End of function --------------------------------------------------------*/ |
| 4132 | |
| 4133 | SPAN_DECLARE(void)__attribute__((visibility("default"))) void v150_1_set_near_cdscselect(v150_1_state_t *s, v150_1_cdscselect_t select) |
| 4134 | { |
| 4135 | s->near.parms.cdscselect = select; |
| 4136 | set_joint_cdscselect(s); |
| 4137 | } |
| 4138 | /*- End of function --------------------------------------------------------*/ |
| 4139 | |
| 4140 | SPAN_DECLARE(void)__attribute__((visibility("default"))) void v150_1_set_far_cdscselect(v150_1_state_t *s, v150_1_cdscselect_t select) |
| 4141 | { |
| 4142 | s->far.parms.cdscselect = select; |
| 4143 | set_joint_cdscselect(s); |
| 4144 | } |
| 4145 | /*- End of function --------------------------------------------------------*/ |
| 4146 | |
| 4147 | SPAN_DECLARE(void)__attribute__((visibility("default"))) void v150_1_set_call_discrimination_timeout(v150_1_state_t *s, int timeout) |
| 4148 | { |
| 4149 | s->call_discrimination_timeout = timeout; |
| 4150 | } |
| 4151 | /*- End of function --------------------------------------------------------*/ |
| 4152 | |
| 4153 | SPAN_DECLARE(logging_state_t *)__attribute__((visibility("default"))) logging_state_t * v150_1_get_logging_state(v150_1_state_t *s) |
| 4154 | { |
| 4155 | return &s->logging; |
| 4156 | } |
| 4157 | /*- End of function --------------------------------------------------------*/ |
| 4158 | |
| 4159 | int sse_status_handler(v150_1_state_t *s, int status) |
| 4160 | { |
| 4161 | span_log(&s->logging, SPAN_LOG_FLOW, "SSE status event %s\n", v150_1_sse_status_to_str(status)); |
| 4162 | return 0; |
| 4163 | } |
| 4164 | /*- End of function --------------------------------------------------------*/ |
| 4165 | |
| 4166 | static void sprt_status_handler(void *user_data, int status) |
| 4167 | { |
| 4168 | v150_1_state_t *s; |
| 4169 | |
| 4170 | s = (v150_1_state_t *) user_data; |
| 4171 | span_log(&s->logging, SPAN_LOG_FLOW, "SPRT status event %d\n", status); |
| 4172 | } |
| 4173 | /*- End of function --------------------------------------------------------*/ |
| 4174 | |
| 4175 | static void call_discrimination_timer_expired(v150_1_state_t *s, span_timestamp_t now) |
| 4176 | { |
| 4177 | v150_1_state_machine(s, V150_1_SIGNAL_CALL_DISCRIMINATION_TIMER_EXPIRED, NULL((void*)0), 0); |
| 4178 | } |
| 4179 | /*- End of function --------------------------------------------------------*/ |
| 4180 | |
| 4181 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_timer_expired(v150_1_state_t *s, span_timestamp_t now) |
| 4182 | { |
| 4183 | span_log(&s->logging, SPAN_LOG_FLOW, "V.150.1 timer expired at %lu\n", now); |
| 4184 | |
| 4185 | if (now < s->latest_timer) |
| 4186 | { |
| 4187 | span_log(&s->logging, SPAN_LOG_FLOW, "V.150.1 timer returned %luus early\n", s->latest_timer - now); |
| 4188 | /* Request the same timeout point again. */ |
| 4189 | if (s->timer_handler) |
| 4190 | s->timer_handler(s->timer_user_data, s->latest_timer); |
| 4191 | /*endif*/ |
| 4192 | return 0; |
| 4193 | } |
| 4194 | /*endif*/ |
| 4195 | |
| 4196 | if (s->call_discrimination_timer != 0 && s->call_discrimination_timer <= now) |
| 4197 | { |
| 4198 | span_log(&s->logging, SPAN_LOG_FLOW, "Call discrimination timer expired\n"); |
| 4199 | call_discrimination_timer_expired(s, now); |
| 4200 | } |
| 4201 | /*endif*/ |
| 4202 | if (s->sse_timer != 0 && s->sse_timer <= now) |
| 4203 | { |
| 4204 | span_log(&s->logging, SPAN_LOG_FLOW, "SSE timer expired\n"); |
| 4205 | v150_1_sse_timer_expired(s, now); |
| 4206 | } |
| 4207 | /*endif*/ |
| 4208 | if (s->sprt_timer != 0 && s->sprt_timer <= now) |
| 4209 | { |
| 4210 | span_log(&s->logging, SPAN_LOG_FLOW, "SPRT timer expired\n"); |
| 4211 | sprt_timer_expired(&s->sprt, now); |
| 4212 | } |
| 4213 | /*endif*/ |
| 4214 | return 0; |
| 4215 | } |
| 4216 | /*- End of function --------------------------------------------------------*/ |
| 4217 | |
| 4218 | static span_timestamp_t select_timer(v150_1_state_t *s) |
| 4219 | { |
| 4220 | span_timestamp_t shortest; |
| 4221 | int shortest_is; |
| 4222 | |
| 4223 | /* Find the earliest expiring of the active timers, and set the timeout to that. */ |
| 4224 | shortest = ~0; |
| 4225 | shortest_is = 0; |
| 4226 | if (s->sprt_timer && s->sprt_timer < shortest) |
| 4227 | { |
| 4228 | shortest = s->sprt_timer; |
| 4229 | shortest_is = 0; |
| 4230 | } |
| 4231 | /*endif*/ |
| 4232 | if (s->sse_timer && s->sse_timer < shortest) |
| 4233 | { |
| 4234 | shortest = s->sse_timer; |
| 4235 | shortest_is = 1; |
| 4236 | } |
| 4237 | /*endif*/ |
| 4238 | if (s->call_discrimination_timer && s->call_discrimination_timer < shortest) |
| 4239 | { |
| 4240 | shortest = s->call_discrimination_timer; |
| 4241 | shortest_is = 2; |
| 4242 | } |
| 4243 | /*endif*/ |
| 4244 | |
| 4245 | /* If we haven't shrunk shortest from maximum, we have no timer to set, so we stop the timer, |
| 4246 | if its set. */ |
| 4247 | if (shortest == ~0) |
| 4248 | shortest = 0; |
| 4249 | /*endif*/ |
| 4250 | span_log(&s->logging, SPAN_LOG_FLOW, "Update timer to %lu (%d)\n", shortest, shortest_is); |
| 4251 | s->latest_timer = shortest; |
| 4252 | return shortest; |
| 4253 | } |
| 4254 | /*- End of function --------------------------------------------------------*/ |
| 4255 | |
| 4256 | static span_timestamp_t update_call_discrimination_timer(v150_1_state_t *s, span_timestamp_t timeout) |
| 4257 | { |
| 4258 | span_timestamp_t res; |
| 4259 | |
| 4260 | if (timeout != ~0) |
| 4261 | { |
| 4262 | s->call_discrimination_timer = timeout; |
| 4263 | timeout = select_timer(s); |
| 4264 | } |
| 4265 | /*endif*/ |
| 4266 | res = 0; |
| 4267 | if (s->timer_handler) |
| 4268 | res = s->timer_handler(s->timer_user_data, timeout); |
| 4269 | /*endif*/ |
| 4270 | return res; |
| 4271 | } |
| 4272 | /*- End of function --------------------------------------------------------*/ |
| 4273 | |
| 4274 | span_timestamp_t update_sse_timer(void *user_data, span_timestamp_t timeout) |
| 4275 | { |
| 4276 | v150_1_state_t *s; |
| 4277 | span_timestamp_t res; |
| 4278 | |
| 4279 | s = (v150_1_state_t *) user_data; |
| 4280 | if (timeout != ~0) |
| 4281 | { |
| 4282 | s->sse_timer = timeout; |
| 4283 | timeout = select_timer(s); |
| 4284 | } |
| 4285 | /*endif*/ |
| 4286 | res = 0; |
| 4287 | if (s->timer_handler) |
| 4288 | res = s->timer_handler(s->timer_user_data, timeout); |
| 4289 | /*endif*/ |
| 4290 | return res; |
| 4291 | } |
| 4292 | /*- End of function --------------------------------------------------------*/ |
| 4293 | |
| 4294 | static span_timestamp_t update_sprt_timer(void *user_data, span_timestamp_t timeout) |
| 4295 | { |
| 4296 | v150_1_state_t *s; |
| 4297 | span_timestamp_t res; |
| 4298 | |
| 4299 | s = (v150_1_state_t *) user_data; |
| 4300 | if (timeout != ~0) |
| 4301 | { |
| 4302 | s->sprt_timer = timeout; |
| 4303 | timeout = select_timer(s); |
| 4304 | } |
| 4305 | /*endif*/ |
| 4306 | res = 0; |
| 4307 | if (s->timer_handler) |
| 4308 | res = s->timer_handler(s->timer_user_data, timeout); |
| 4309 | /*endif*/ |
| 4310 | return res; |
| 4311 | } |
| 4312 | /*- End of function --------------------------------------------------------*/ |
| 4313 | |
| 4314 | SPAN_DECLARE(v150_1_state_t *)__attribute__((visibility("default"))) v150_1_state_t * v150_1_init(v150_1_state_t *s, |
| 4315 | sprt_tx_packet_handler_t sprt_tx_packet_handler, |
| 4316 | void *sprt_tx_packet_handler_user_data, |
| 4317 | uint8_t sprt_tx_payload_type, |
| 4318 | uint8_t sprt_rx_payload_type, |
| 4319 | v150_1_sse_tx_packet_handler_t sse_tx_packet_handler, |
| 4320 | void *sse_tx_packet_user_data, |
| 4321 | v150_1_timer_handler_t v150_1_timer_handler, |
| 4322 | void *v150_1_timer_user_data, |
| 4323 | v150_1_rx_data_handler_t rx_data_handler, |
| 4324 | void *rx_data_handler_user_data, |
| 4325 | v150_1_rx_status_report_handler_t rx_status_report_handler, |
| 4326 | void *rx_status_report_user_data, |
| 4327 | v150_1_spe_signal_handler_t spe_signal_handler, |
| 4328 | void *spe_signal_handler_user_data) |
| 4329 | { |
| 4330 | if (sprt_tx_packet_handler == NULL((void*)0) || rx_data_handler == NULL((void*)0) || rx_status_report_handler == NULL((void*)0)) |
| 4331 | return NULL((void*)0); |
| 4332 | /*endif*/ |
| 4333 | if (s == NULL((void*)0)) |
| 4334 | { |
| 4335 | if ((s = (v150_1_state_t *) span_alloc(sizeof(*s))) == NULL((void*)0)) |
| 4336 | return NULL((void*)0); |
| 4337 | /*endif*/ |
| 4338 | } |
| 4339 | /*endif*/ |
| 4340 | memset(s, 0, sizeof(*s)); |
| 4341 | |
| 4342 | span_log_init(&s->logging, SPAN_LOG_NONE, NULL((void*)0)); |
| 4343 | span_log_set_protocol(&s->logging, "V.150.1"); |
| 4344 | |
| 4345 | s->near.max_payload_bytes[SPRT_TCID_UNRELIABLE_UNSEQUENCED] = SPRT_DEFAULT_TC0_PAYLOAD_BYTES140; |
| 4346 | s->near.max_payload_bytes[SPRT_TCID_RELIABLE_SEQUENCED] = SPRT_DEFAULT_TC1_PAYLOAD_BYTES132; |
| 4347 | s->near.max_payload_bytes[SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED] = SPRT_DEFAULT_TC2_PAYLOAD_BYTES132; |
| 4348 | s->near.max_payload_bytes[SPRT_TCID_UNRELIABLE_SEQUENCED] = SPRT_DEFAULT_TC3_PAYLOAD_BYTES140; |
| 4349 | |
| 4350 | s->near.parms.v42bis_p0 = 3; |
| 4351 | s->near.parms.v42bis_p1 = 512; |
| 4352 | s->near.parms.v42bis_p2 = 6; |
| 4353 | s->near.parms.v44_c0 = 0; |
| 4354 | s->near.parms.v44_p0 = 0; |
| 4355 | s->near.parms.v44_p1t = 0; |
| 4356 | s->near.parms.v44_p1r = 0; |
| 4357 | s->near.parms.v44_p2t = 0; |
| 4358 | s->near.parms.v44_p2r = 0; |
| 4359 | s->near.parms.v44_p3t = 0; |
| 4360 | s->near.parms.v44_p3r = 0; |
| 4361 | |
| 4362 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_CALL_FUNCTION_1] = true1; |
| 4363 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_CALL_FUNCTION_1] = V150_1_JM_CALL_FUNCTION_V_SERIES; |
| 4364 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_MODULATION_MODES] = true1; |
| 4365 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_MODULATION_MODES] = |
| 4366 | V150_1_JM_MODULATION_MODE_V34_AVAILABLE |
| 4367 | | V150_1_JM_MODULATION_MODE_V32_V32bis_AVAILABLE |
| 4368 | | V150_1_JM_MODULATION_MODE_V22_V22bis_AVAILABLE |
| 4369 | | V150_1_JM_MODULATION_MODE_V21_AVAILABLE; |
| 4370 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_PROTOCOLS] = true1; |
| 4371 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_PROTOCOLS] = V150_1_JM_PROTOCOL_V42_LAPM; |
| 4372 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_PSTN_ACCESS] = true1; |
| 4373 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_PSTN_ACCESS] = 0; |
| 4374 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_PCM_MODEM_AVAILABILITY] = false0; |
| 4375 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_PCM_MODEM_AVAILABILITY] = 0; |
| 4376 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_EXTENSION] = false0; |
| 4377 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_EXTENSION] = 0; |
| 4378 | |
| 4379 | s->near.parms.selmod = V150_1_SELMOD_NULL; |
| 4380 | s->near.parms.selected_compression_direction = V150_1_COMPRESS_NEITHER_WAY; |
| 4381 | s->near.parms.selected_compression = V150_1_COMPRESSION_NONE; |
| 4382 | s->near.parms.selected_error_correction = V150_1_ERROR_CORRECTION_NONE; |
| 4383 | s->near.parms.tdsr = 0; |
| 4384 | s->near.parms.rdsr = 0; |
| 4385 | s->near.parms.txsen = false0; |
| 4386 | s->near.parms.txsr = V150_1_SYMBOL_RATE_NULL; |
| 4387 | s->near.parms.rxsen = false0; |
| 4388 | s->near.parms.rxsr = V150_1_SYMBOL_RATE_NULL; |
| 4389 | |
| 4390 | /* Set default values that suit V.42bis */ |
| 4391 | s->near.parms.compression_tx_dictionary_size = 512; |
| 4392 | s->near.parms.compression_rx_dictionary_size = 512; |
| 4393 | s->near.parms.compression_tx_string_length = 6; |
| 4394 | s->near.parms.compression_rx_string_length = 6; |
| 4395 | s->near.parms.compression_tx_history_size = 0; |
| 4396 | s->near.parms.compression_rx_history_size = 0; |
| 4397 | |
| 4398 | s->near.parms.ecp = V150_1_ERROR_CORRECTION_V42_LAPM; |
| 4399 | s->near.parms.v42_lapm_supported = true1; |
| 4400 | s->near.parms.v42_annex_a_supported = false0; /* This will never be supported, as it was removed from the V.42 spec in 2002. */ |
| 4401 | s->near.parms.v42bis_supported = true1; |
| 4402 | s->near.parms.v44_supported = false0; |
| 4403 | s->near.parms.mnp5_supported = false0; |
| 4404 | |
| 4405 | s->near.parms.necrxch_option = false0; |
| 4406 | s->near.parms.ecrxch_option = true1; |
| 4407 | s->near.parms.xid_profile_exchange_supported = false0; |
| 4408 | s->near.parms.asymmetric_data_types_supported = false0; |
| 4409 | |
| 4410 | s->near.parms.i_raw_bit_supported = false0; |
| 4411 | s->near.parms.i_frame_supported = false0; |
| 4412 | s->near.parms.i_char_stat_supported = false0; |
| 4413 | s->near.parms.i_char_dyn_supported = false0; |
| 4414 | s->near.parms.i_octet_cs_supported = true1; |
| 4415 | s->near.parms.i_char_stat_cs_supported = false0; |
| 4416 | s->near.parms.i_char_dyn_cs_supported = false0; |
| 4417 | |
| 4418 | /* Set a default character format. */ |
| 4419 | s->near.parms.data_format_code = (V150_1_DATA_BITS_7 << 6) |
| 4420 | | (V150_1_PARITY_EVEN << 3) |
| 4421 | | V150_1_STOP_BITS_1; |
| 4422 | s->far.parms.data_format_code = -1; |
| 4423 | |
| 4424 | s->remote_media_state = V150_1_MEDIA_STATE_INITIAL_AUDIO; |
| 4425 | s->local_media_state = V150_1_MEDIA_STATE_INITIAL_AUDIO; |
| 4426 | |
| 4427 | s->call_discrimination_timeout = V150_1_CALL_DISCRIMINATION_DEFAULT_TIMEOUT60000000; |
| 4428 | |
| 4429 | s->near.parms.sprt_subsession_id = 0; |
| 4430 | s->near.parms.sprt_payload_type = sprt_tx_payload_type; |
| 4431 | s->far.parms.sprt_payload_type = sprt_rx_payload_type; |
| 4432 | |
| 4433 | s->rx_data_handler = rx_data_handler; |
| 4434 | s->rx_data_handler_user_data = rx_data_handler_user_data; |
| 4435 | s->rx_status_report_handler = rx_status_report_handler; |
| 4436 | s->rx_status_report_user_data = rx_status_report_user_data; |
| 4437 | |
| 4438 | s->timer_handler = v150_1_timer_handler; |
| 4439 | s->timer_user_data = v150_1_timer_user_data; |
| 4440 | |
| 4441 | v150_1_sse_init(s, |
| 4442 | sse_tx_packet_handler, |
| 4443 | sse_tx_packet_user_data); |
| 4444 | |
| 4445 | sprt_init(&s->sprt, |
| 4446 | s->near.parms.sprt_subsession_id, |
| 4447 | s->near.parms.sprt_payload_type, |
| 4448 | s->far.parms.sprt_payload_type, |
| 4449 | NULL((void*)0) /* Use default params */, |
| 4450 | sprt_tx_packet_handler, |
| 4451 | sprt_tx_packet_handler_user_data, |
| 4452 | process_rx_sprt_msg, |
| 4453 | s, |
| 4454 | update_sprt_timer, |
| 4455 | s, |
| 4456 | sprt_status_handler, |
| 4457 | s); |
| 4458 | |
| 4459 | return s; |
| 4460 | } |
| 4461 | /*- End of function --------------------------------------------------------*/ |
| 4462 | |
| 4463 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_release(v150_1_state_t *s) |
| 4464 | { |
| 4465 | return 0; |
| 4466 | } |
| 4467 | /*- End of function --------------------------------------------------------*/ |
| 4468 | |
| 4469 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_free(v150_1_state_t *s) |
| 4470 | { |
| 4471 | int ret; |
| 4472 | |
| 4473 | ret = v150_1_release(s); |
| 4474 | span_free(s); |
| 4475 | return ret; |
| 4476 | } |
| 4477 | /*- End of function --------------------------------------------------------*/ |
| 4478 | /*- End of file ------------------------------------------------------------*/ |