File: | v150_1.c |
Warning: | line 2298, 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.media_state_change.local_state = s->local_media_state; |
1419 | report.media_state_change.remote_state = s->remote_media_state; |
1420 | break; |
1421 | case V150_1_STATUS_REASON_CONNECTION_STATE_CHANGED: |
1422 | report.connection_state_change.state = s->far.parms.connection_state; |
1423 | report.connection_state_change.cleardown_reason = s->far.parms.cleardown_reason; |
1424 | break; |
1425 | case V150_1_STATUS_REASON_CONNECTION_STATE_PHYSUP: |
1426 | report.physup_parameters.selmod = s->far.parms.selmod; |
1427 | report.physup_parameters.tdsr = s->far.parms.tdsr; |
1428 | report.physup_parameters.rdsr = s->far.parms.rdsr; |
1429 | |
1430 | report.physup_parameters.txsen = s->far.parms.txsen; |
1431 | report.physup_parameters.txsr = s->far.parms.txsr; |
1432 | report.physup_parameters.rxsen = s->far.parms.rxsen; |
1433 | report.physup_parameters.rxsr = s->far.parms.rxsr; |
1434 | break; |
1435 | case V150_1_STATUS_REASON_CONNECTION_STATE_CONNECTED: |
1436 | report.connect_parameters.selmod = s->far.parms.selmod; |
1437 | report.connect_parameters.tdsr = s->far.parms.tdsr; |
1438 | report.connect_parameters.rdsr = s->far.parms.rdsr; |
1439 | |
1440 | report.connect_parameters.selected_compression_direction = s->far.parms.selected_compression_direction; |
1441 | report.connect_parameters.selected_compression = s->far.parms.selected_compression; |
1442 | report.connect_parameters.selected_error_correction = s->far.parms.selected_error_correction; |
1443 | |
1444 | report.connect_parameters.compression_tx_dictionary_size = s->far.parms.compression_tx_dictionary_size; |
1445 | report.connect_parameters.compression_rx_dictionary_size = s->far.parms.compression_rx_dictionary_size; |
1446 | report.connect_parameters.compression_tx_string_length = s->far.parms.compression_tx_string_length; |
1447 | report.connect_parameters.compression_rx_string_length = s->far.parms.compression_rx_string_length; |
1448 | report.connect_parameters.compression_tx_history_size = s->far.parms.compression_tx_history_size; |
1449 | report.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.connect_parameters.i_raw_octet_available = true1; |
1453 | report.connect_parameters.i_raw_bit_available = s->far.parms.i_raw_bit_available; |
1454 | report.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.connect_parameters.i_octet_with_dlci_available = s->far.parms.i_octet_with_dlci_available; |
1458 | report.connect_parameters.i_octet_without_dlci_available = s->far.parms.i_octet_without_dlci_available; |
1459 | report.connect_parameters.i_char_stat_available = s->far.parms.i_char_stat_available; |
1460 | report.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.connect_parameters.i_octet_cs_available = s->far.parms.i_octet_cs_available; |
1463 | report.connect_parameters.i_char_stat_cs_available = s->far.parms.i_char_stat_cs_available; |
1464 | report.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.data_format_change.bits = 5 + ((s->far.parms.data_format_code >> 5) & 0x03); |
1468 | report.data_format_change.parity_code = (s->far.parms.data_format_code >> 2) & 0x07; |
1469 | report.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.break_received.source = s->far.break_source; |
1473 | report.break_received.type = s->far.break_type; |
1474 | report.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.busy_change.local_busy = s->near.parms.busy; |
1482 | report.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; |
Value stored to 'res' is never read | |
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; |
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 | } |
3573 | else |
3574 | { |
3575 | if ((buf[1] & 0x01) == 0) |
3576 | { |
3577 | if ((buf[2] & 0x01) == 0) |
3578 | span_log(&s->logging, SPAN_LOG_WARNING, "I_OCTET with DLCI has bad DLCI field\n"); |
3579 | /*endif*/ |
3580 | header = 3; |
3581 | s->far.parms.dlci = get_net_unaligned_uint16(&buf[1]); |
3582 | } |
3583 | else |
3584 | { |
3585 | header = 2; |
3586 | s->far.parms.dlci = buf[1]; |
3587 | } |
3588 | /*endif*/ |
3589 | } |
3590 | /*endif*/ |
3591 | } |
3592 | else |
3593 | { |
3594 | header = 1; |
3595 | } |
3596 | /*endif*/ |
3597 | if (len > header) |
3598 | { |
3599 | if (s->rx_data_handler) |
3600 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[header], len - header, -1); |
3601 | /*endif*/ |
3602 | } |
3603 | /*endif*/ |
3604 | return 0; |
3605 | } |
3606 | /*- End of function --------------------------------------------------------*/ |
3607 | |
3608 | static int v150_1_process_i_char_stat(v150_1_state_t *s, const uint8_t buf[], int len) |
3609 | { |
3610 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
3611 | { |
3612 | span_log(&s->logging, SPAN_LOG_WARNING, "I_CHAR-STAT received before CONNECT. Ignored.\n"); |
3613 | return -1; |
3614 | } |
3615 | /*endif*/ |
3616 | if (len < 2) |
3617 | { |
3618 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_CHAR-STAT message length %d\n", len); |
3619 | return -1; |
3620 | } |
3621 | /*endif*/ |
3622 | if (s->far.parms.data_format_code != buf[1]) |
3623 | { |
3624 | /* Every packet in a session should have the same data format code */ |
3625 | s->far.parms.data_format_code = buf[1]; |
3626 | status_report(s, V150_1_STATUS_REASON_DATA_FORMAT_CHANGED); |
3627 | } |
3628 | /*endif*/ |
3629 | if (len > 2) |
3630 | { |
3631 | if (s->rx_data_handler) |
3632 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[2], len - 2, -1); |
3633 | /*endif*/ |
3634 | } |
3635 | /*endif*/ |
3636 | return 0; |
3637 | } |
3638 | /*- End of function --------------------------------------------------------*/ |
3639 | |
3640 | static int v150_1_process_i_char_dyn(v150_1_state_t *s, const uint8_t buf[], int len) |
3641 | { |
3642 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
3643 | { |
3644 | span_log(&s->logging, SPAN_LOG_WARNING, "I_CHAR-DYN received before CONNECT. Ignored.\n"); |
3645 | return -1; |
3646 | } |
3647 | /*endif*/ |
3648 | if (len < 2) |
3649 | { |
3650 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_CHAR-DYN message length %d\n", len); |
3651 | return -1; |
3652 | } |
3653 | /*endif*/ |
3654 | if (s->far.parms.data_format_code != buf[1]) |
3655 | { |
3656 | s->far.parms.data_format_code = buf[1]; |
3657 | status_report(s, V150_1_STATUS_REASON_DATA_FORMAT_CHANGED); |
3658 | } |
3659 | /*endif*/ |
3660 | if (len > 2) |
3661 | { |
3662 | if (s->rx_data_handler) |
3663 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[2], len - 2, -1); |
3664 | /*endif*/ |
3665 | } |
3666 | /*endif*/ |
3667 | return 0; |
3668 | } |
3669 | /*- End of function --------------------------------------------------------*/ |
3670 | |
3671 | static int v150_1_process_i_frame(v150_1_state_t *s, const uint8_t buf[], int len) |
3672 | { |
3673 | int res; |
3674 | int data_frame_state; |
3675 | |
3676 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
3677 | { |
3678 | span_log(&s->logging, SPAN_LOG_WARNING, "I_FRAME received before CONNECT. Ignored.\n"); |
3679 | return -1; |
3680 | } |
3681 | /*endif*/ |
3682 | if (len < 2) |
3683 | { |
3684 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_FRAME message length %d\n", len); |
3685 | return -1; |
3686 | } |
3687 | /*endif*/ |
3688 | res = (buf[1] >> 2) & 0x3F; |
3689 | if (res) |
3690 | span_log(&s->logging, SPAN_LOG_WARNING, "I_FRAME with non-zero 'res' field\n"); |
3691 | /*endif*/ |
3692 | data_frame_state = buf[1] & 0x03; |
3693 | if (len > 2) |
3694 | { |
3695 | if (s->rx_data_handler) |
3696 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[2], len - 2, -1); |
3697 | /*endif*/ |
3698 | } |
3699 | /*endif*/ |
3700 | return 0; |
3701 | } |
3702 | /*- End of function --------------------------------------------------------*/ |
3703 | |
3704 | static int v150_1_process_i_octet_cs(v150_1_state_t *s, const uint8_t buf[], int len) |
3705 | { |
3706 | int fill; |
3707 | int character_seq_no; |
3708 | |
3709 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
3710 | { |
3711 | span_log(&s->logging, SPAN_LOG_WARNING, "I_OCTET-CS received before CONNECT. Ignored.\n"); |
3712 | return -1; |
3713 | } |
3714 | /*endif*/ |
3715 | if (len < 3) |
3716 | { |
3717 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_OCTET-CS message length %d\n", len); |
3718 | return -1; |
3719 | } |
3720 | /*endif*/ |
3721 | character_seq_no = get_net_unaligned_uint16(&buf[1]); |
3722 | /* Check for a gap in the data */ |
3723 | fill = (character_seq_no - s->far.parms.octet_cs_next_seq_no) & 0xFFFF; |
3724 | if (s->rx_data_handler) |
3725 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[3], len - 3, fill); |
3726 | /*endif*/ |
3727 | s->far.parms.octet_cs_next_seq_no = (character_seq_no + len - 3) & 0xFFFF; |
3728 | return 0; |
3729 | } |
3730 | /*- End of function --------------------------------------------------------*/ |
3731 | |
3732 | static int v150_1_process_i_char_stat_cs(v150_1_state_t *s, const uint8_t buf[], int len) |
3733 | { |
3734 | int fill; |
3735 | int character_seq_no; |
3736 | |
3737 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
3738 | { |
3739 | span_log(&s->logging, SPAN_LOG_WARNING, "I_CHAR-STAT-CS received before CONNECT. Ignored.\n"); |
3740 | return -1; |
3741 | } |
3742 | /*endif*/ |
3743 | if (len < 4) |
3744 | { |
3745 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_CHAR-STAT-CS message length %d\n", len); |
3746 | return -1; |
3747 | } |
3748 | /*endif*/ |
3749 | if (s->far.parms.data_format_code != buf[1]) |
3750 | { |
3751 | /* Every packet in a session should have the same data format code */ |
3752 | s->far.parms.data_format_code = buf[1]; |
3753 | status_report(s, V150_1_STATUS_REASON_DATA_FORMAT_CHANGED); |
3754 | } |
3755 | /*endif*/ |
3756 | character_seq_no = get_net_unaligned_uint16(&buf[2]); |
3757 | /* Check for a gap in the data */ |
3758 | fill = (character_seq_no - s->far.parms.octet_cs_next_seq_no) & 0xFFFF; |
3759 | if (s->rx_data_handler) |
3760 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[4], len - 4, fill); |
3761 | /*endif*/ |
3762 | s->far.parms.octet_cs_next_seq_no = (character_seq_no + len - 4) & 0xFFFF; |
3763 | return 0; |
3764 | } |
3765 | /*- End of function --------------------------------------------------------*/ |
3766 | |
3767 | static int v150_1_process_i_char_dyn_cs(v150_1_state_t *s, const uint8_t buf[], int len) |
3768 | { |
3769 | int fill; |
3770 | int character_seq_no; |
3771 | |
3772 | if (s->joint_connection_state != V150_1_STATE_CONNECTED) |
3773 | { |
3774 | span_log(&s->logging, SPAN_LOG_WARNING, "I_CHAR-DYN-CS received before CONNECT. Ignored.\n"); |
3775 | return -1; |
3776 | } |
3777 | /*endif*/ |
3778 | if (len < 4) |
3779 | { |
3780 | span_log(&s->logging, SPAN_LOG_WARNING, "Invalid I_CHAR-DYN-CS message length %d\n", len); |
3781 | return -1; |
3782 | } |
3783 | /*endif*/ |
3784 | if (s->far.parms.data_format_code != buf[1]) |
3785 | { |
3786 | s->far.parms.data_format_code = buf[1]; |
3787 | status_report(s, V150_1_STATUS_REASON_DATA_FORMAT_CHANGED); |
3788 | } |
3789 | /*endif*/ |
3790 | character_seq_no = get_net_unaligned_uint16(&buf[2]); |
3791 | /* Check for a gap in the data */ |
3792 | fill = (character_seq_no - s->far.parms.octet_cs_next_seq_no) & 0xFFFF; |
3793 | if (s->rx_data_handler) |
3794 | s->rx_data_handler(s->rx_data_handler_user_data, &buf[4], len - 4, fill); |
3795 | /*endif*/ |
3796 | s->far.parms.octet_cs_next_seq_no = (character_seq_no + len - 4) & 0xFFFF; |
3797 | return 0; |
3798 | } |
3799 | /*- End of function --------------------------------------------------------*/ |
3800 | |
3801 | static int process_rx_sprt_msg(void *user_data, int chan, int seq_no, const uint8_t buf[], int len) |
3802 | { |
3803 | int res; |
3804 | int msg_id; |
3805 | v150_1_state_t *s; |
3806 | |
3807 | s = (v150_1_state_t *) user_data; |
3808 | |
3809 | span_log(&s->logging, SPAN_LOG_FLOW, "%s (%d) seq %d\n", sprt_transmission_channel_to_str(chan), chan, seq_no); |
3810 | span_log_buf(&s->logging, SPAN_LOG_FLOW, "", buf, len); |
3811 | |
3812 | if (chan < SPRT_TCID_MIN || chan > SPRT_TCID_MAX) |
3813 | { |
3814 | span_log(&s->logging, SPAN_LOG_ERROR, "Packet arrived on invalid channel %d\n", chan); |
3815 | return -1; |
3816 | } |
3817 | /*endif*/ |
3818 | if ((buf[0] & 0x80)) |
3819 | { |
3820 | span_log(&s->logging, SPAN_LOG_FLOW, "Don't know how to handle this\n"); |
3821 | return -1; |
3822 | } |
3823 | /*endif*/ |
3824 | msg_id = buf[0] & 0x7F; |
3825 | 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); |
3826 | |
3827 | if (msg_id < sizeof(channel_check)) |
3828 | { |
3829 | if ((channel_check[msg_id] & (1 << chan)) == 0) |
3830 | { |
3831 | span_log(&s->logging, SPAN_LOG_FLOW, "Bad channel for message ID %d\n", msg_id); |
3832 | return -1; |
3833 | } |
3834 | /*endif*/ |
3835 | } |
3836 | /*endif*/ |
3837 | |
3838 | switch (msg_id) |
3839 | { |
3840 | case V150_1_MSGID_NULL: |
3841 | res = v150_1_process_null(s, buf, len); |
3842 | break; |
3843 | case V150_1_MSGID_INIT: |
3844 | res = v150_1_process_init(s, buf, len); |
3845 | break; |
3846 | case V150_1_MSGID_XID_XCHG: |
3847 | res = v150_1_process_xid_xchg(s, buf, len); |
3848 | break; |
3849 | case V150_1_MSGID_JM_INFO: |
3850 | res = v150_1_process_jm_info(s, buf, len); |
3851 | break; |
3852 | case V150_1_MSGID_START_JM: |
3853 | res = v150_1_process_start_jm(s, buf, len); |
3854 | break; |
3855 | case V150_1_MSGID_CONNECT: |
3856 | res = v150_1_process_connect(s, buf, len); |
3857 | break; |
3858 | case V150_1_MSGID_BREAK: |
3859 | res = v150_1_process_break(s, buf, len); |
3860 | break; |
3861 | case V150_1_MSGID_BREAKACK: |
3862 | res = v150_1_process_break_ack(s, buf, len); |
3863 | break; |
3864 | case V150_1_MSGID_MR_EVENT: |
3865 | res = v150_1_process_mr_event(s, buf, len); |
3866 | break; |
3867 | case V150_1_MSGID_CLEARDOWN: |
3868 | res = v150_1_process_cleardown(s, buf, len); |
3869 | break; |
3870 | case V150_1_MSGID_PROF_XCHG: |
3871 | res = v150_1_process_prof_xchg(s, buf, len); |
3872 | break; |
3873 | case V150_1_MSGID_I_RAW_OCTET: |
3874 | res = v150_1_process_i_raw_octet(s, buf, len); |
3875 | break; |
3876 | case V150_1_MSGID_I_RAW_BIT: |
3877 | res = v150_1_process_i_raw_bit(s, buf, len); |
3878 | break; |
3879 | case V150_1_MSGID_I_OCTET: |
3880 | res = v150_1_process_i_octet(s, buf, len); |
3881 | break; |
3882 | case V150_1_MSGID_I_CHAR_STAT: |
3883 | res = v150_1_process_i_char_stat(s, buf, len); |
3884 | break; |
3885 | case V150_1_MSGID_I_CHAR_DYN: |
3886 | res = v150_1_process_i_char_dyn(s, buf, len); |
3887 | break; |
3888 | case V150_1_MSGID_I_FRAME: |
3889 | res = v150_1_process_i_frame(s, buf, len); |
3890 | break; |
3891 | case V150_1_MSGID_I_OCTET_CS: |
3892 | res = v150_1_process_i_octet_cs(s, buf, len); |
3893 | break; |
3894 | case V150_1_MSGID_I_CHAR_STAT_CS: |
3895 | res = v150_1_process_i_char_stat_cs(s, buf, len); |
3896 | break; |
3897 | case V150_1_MSGID_I_CHAR_DYN_CS: |
3898 | res = v150_1_process_i_char_dyn_cs(s, buf, len); |
3899 | break; |
3900 | default: |
3901 | span_log(&s->logging, SPAN_LOG_FLOW, "Bad msg ID %d\n", msg_id); |
3902 | res = -1; |
3903 | break; |
3904 | } |
3905 | /*endswitch*/ |
3906 | if (res < 0) |
3907 | span_log(&s->logging, SPAN_LOG_FLOW, "Bad message\n"); |
3908 | /*endif*/ |
3909 | return res; |
3910 | } |
3911 | /*- End of function --------------------------------------------------------*/ |
3912 | |
3913 | 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) |
3914 | { |
3915 | process_rx_sprt_msg((void *) s, chan, seq_no, buf, len); |
3916 | return 0; |
3917 | } |
3918 | /*- End of function --------------------------------------------------------*/ |
3919 | |
3920 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_local_busy(v150_1_state_t *s, bool_Bool busy) |
3921 | { |
3922 | bool_Bool previous_busy; |
3923 | |
3924 | previous_busy = s->near.parms.busy; |
3925 | s->near.parms.busy = busy; |
3926 | return previous_busy; |
3927 | } |
3928 | /*- End of function --------------------------------------------------------*/ |
3929 | |
3930 | SPAN_DECLARE(bool)__attribute__((visibility("default"))) _Bool v150_1_get_far_busy_status(v150_1_state_t *s) |
3931 | { |
3932 | return s->far.parms.busy; |
3933 | } |
3934 | /*- End of function --------------------------------------------------------*/ |
3935 | |
3936 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_local_tc_payload_bytes(v150_1_state_t *s, int channel, int max_len) |
3937 | { |
3938 | if (channel < SPRT_TCID_MIN || channel > SPRT_TCID_MAX) |
3939 | return -1; |
3940 | /*endif*/ |
3941 | if (max_len < channel_parm_limits[channel].min_payload_bytes |
3942 | || |
3943 | max_len > channel_parm_limits[channel].max_payload_bytes) |
3944 | { |
3945 | return -1; |
3946 | } |
3947 | /*endif*/ |
3948 | s->near.max_payload_bytes[channel] = max_len; |
3949 | return 0; |
3950 | } |
3951 | /*- End of function --------------------------------------------------------*/ |
3952 | |
3953 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_get_local_tc_payload_bytes(v150_1_state_t *s, int channel) |
3954 | { |
3955 | if (channel < SPRT_TCID_MIN || channel > SPRT_TCID_MAX) |
3956 | return -1; |
3957 | /*endif*/ |
3958 | return s->near.max_payload_bytes[channel]; |
3959 | } |
3960 | /*- End of function --------------------------------------------------------*/ |
3961 | |
3962 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_info_stream_tx_mode(v150_1_state_t *s, int channel, int msg_id) |
3963 | { |
3964 | if (channel < SPRT_TCID_MIN || channel > SPRT_TCID_MAX) |
3965 | return -1; |
3966 | /*endif*/ |
3967 | switch (msg_id) |
3968 | { |
3969 | case V150_1_MSGID_I_RAW_OCTET: |
3970 | case V150_1_MSGID_I_RAW_BIT: |
3971 | case V150_1_MSGID_I_OCTET: |
3972 | case V150_1_MSGID_I_CHAR_STAT: |
3973 | case V150_1_MSGID_I_CHAR_DYN: |
3974 | case V150_1_MSGID_I_FRAME: |
3975 | case V150_1_MSGID_I_OCTET_CS: |
3976 | case V150_1_MSGID_I_CHAR_STAT_CS: |
3977 | case V150_1_MSGID_I_CHAR_DYN_CS: |
3978 | s->near.info_stream_channel = channel; |
3979 | s->near.info_stream_msg_id = msg_id; |
3980 | break; |
3981 | default: |
3982 | return -1; |
3983 | } |
3984 | return 0; |
3985 | } |
3986 | /*- End of function --------------------------------------------------------*/ |
3987 | |
3988 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_info_stream_msg_priorities(v150_1_state_t *s, int msg_ids[]) |
3989 | { |
3990 | int i; |
3991 | |
3992 | /* Check the list is valid */ |
3993 | for (i = 0; i < 10 && msg_ids[i] >= 0; i++) |
3994 | { |
3995 | switch(msg_ids[i]) |
3996 | { |
3997 | case V150_1_MSGID_I_RAW_OCTET: |
3998 | case V150_1_MSGID_I_RAW_BIT: |
3999 | case V150_1_MSGID_I_OCTET: |
4000 | case V150_1_MSGID_I_CHAR_STAT: |
4001 | case V150_1_MSGID_I_CHAR_DYN: |
4002 | case V150_1_MSGID_I_FRAME: |
4003 | case V150_1_MSGID_I_OCTET_CS: |
4004 | case V150_1_MSGID_I_CHAR_STAT_CS: |
4005 | case V150_1_MSGID_I_CHAR_DYN_CS: |
4006 | /* OK */ |
4007 | break; |
4008 | default: |
4009 | return -1; |
4010 | } |
4011 | /*endswitch*/ |
4012 | } |
4013 | /*endfor*/ |
4014 | for (i = 0; i < 10 && msg_ids[i] >= 0; i++) |
4015 | { |
4016 | s->near.info_msg_preferences[i] = msg_ids[i]; |
4017 | } |
4018 | /*endfor*/ |
4019 | if (i < 10) |
4020 | s->near.info_msg_preferences[i] = -1; |
4021 | /*endif*/ |
4022 | return 0; |
4023 | } |
4024 | /*- End of function --------------------------------------------------------*/ |
4025 | |
4026 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_modulation(v150_1_state_t *s, int modulation) |
4027 | { |
4028 | s->near.parms.selmod = modulation; |
4029 | return 0; |
4030 | } |
4031 | /*- End of function --------------------------------------------------------*/ |
4032 | |
4033 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_compression_direction(v150_1_state_t *s, int compression_direction) |
4034 | { |
4035 | s->near.parms.selected_compression_direction = compression_direction; |
4036 | return 0; |
4037 | } |
4038 | /*- End of function --------------------------------------------------------*/ |
4039 | |
4040 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_compression(v150_1_state_t *s, int compression) |
4041 | { |
4042 | s->near.parms.selected_compression = compression; |
4043 | return 0; |
4044 | } |
4045 | /*- End of function --------------------------------------------------------*/ |
4046 | |
4047 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_compression_parameters(v150_1_state_t *s, |
4048 | int tx_dictionary_size, |
4049 | int rx_dictionary_size, |
4050 | int tx_string_length, |
4051 | int rx_string_length, |
4052 | int tx_history_size, |
4053 | int rx_history_size) |
4054 | { |
4055 | s->near.parms.compression_tx_dictionary_size = tx_dictionary_size; |
4056 | s->near.parms.compression_rx_dictionary_size = rx_dictionary_size; |
4057 | s->near.parms.compression_tx_string_length = tx_string_length; |
4058 | s->near.parms.compression_rx_string_length = rx_string_length; |
4059 | /* These are only relevant for V.44 */ |
4060 | s->near.parms.compression_tx_history_size = tx_history_size; |
4061 | s->near.parms.compression_rx_history_size = rx_history_size; |
4062 | return 0; |
4063 | } |
4064 | /*- End of function --------------------------------------------------------*/ |
4065 | |
4066 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_error_correction(v150_1_state_t *s, int error_correction) |
4067 | { |
4068 | s->near.parms.selected_error_correction = error_correction; |
4069 | return 0; |
4070 | } |
4071 | /*- End of function --------------------------------------------------------*/ |
4072 | |
4073 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_tx_symbol_rate(v150_1_state_t *s, bool_Bool enable, int rate) |
4074 | { |
4075 | s->near.parms.txsen = enable; |
4076 | s->near.parms.txsr = (enable) ? rate : 0; |
4077 | return 0; |
4078 | } |
4079 | /*- End of function --------------------------------------------------------*/ |
4080 | |
4081 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_rx_symbol_rate(v150_1_state_t *s, bool_Bool enable, int rate) |
4082 | { |
4083 | s->near.parms.rxsen = enable; |
4084 | s->near.parms.rxsr = (enable) ? rate : 0; |
4085 | return 0; |
4086 | } |
4087 | /*- End of function --------------------------------------------------------*/ |
4088 | |
4089 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_tx_data_signalling_rate(v150_1_state_t *s, int rate) |
4090 | { |
4091 | s->near.parms.tdsr = rate; |
4092 | return 0; |
4093 | } |
4094 | /*- End of function --------------------------------------------------------*/ |
4095 | |
4096 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_set_rx_data_signalling_rate(v150_1_state_t *s, int rate) |
4097 | { |
4098 | s->near.parms.rdsr = rate; |
4099 | return 0; |
4100 | } |
4101 | /*- End of function --------------------------------------------------------*/ |
4102 | |
4103 | static void set_joint_cdscselect(v150_1_state_t *s) |
4104 | { |
4105 | /* See Table 32/V.150.1 */ |
4106 | if (s->near.parms.cdscselect == V150_1_CDSCSELECT_INDETERMINATE |
4107 | || |
4108 | s->far.parms.cdscselect == V150_1_CDSCSELECT_INDETERMINATE) |
4109 | { |
4110 | s->cdscselect = V150_1_CDSCSELECT_INDETERMINATE; |
4111 | } |
4112 | else if (s->near.parms.cdscselect == V150_1_CDSCSELECT_AUDIO_RFC4733 |
4113 | || |
4114 | s->far.parms.cdscselect == V150_1_CDSCSELECT_AUDIO_RFC4733) |
4115 | { |
4116 | s->cdscselect = V150_1_CDSCSELECT_AUDIO_RFC4733; |
4117 | } |
4118 | else if (s->near.parms.cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED |
4119 | || |
4120 | s->far.parms.cdscselect == V150_1_CDSCSELECT_VBD_PREFERRED) |
4121 | { |
4122 | s->cdscselect = V150_1_CDSCSELECT_VBD_PREFERRED; |
4123 | } |
4124 | else |
4125 | { |
4126 | s->cdscselect = V150_1_CDSCSELECT_MIXED; |
4127 | } |
4128 | /*endif*/ |
4129 | } |
4130 | /*- End of function --------------------------------------------------------*/ |
4131 | |
4132 | SPAN_DECLARE(void)__attribute__((visibility("default"))) void v150_1_set_near_cdscselect(v150_1_state_t *s, v150_1_cdscselect_t select) |
4133 | { |
4134 | s->near.parms.cdscselect = select; |
4135 | set_joint_cdscselect(s); |
4136 | } |
4137 | /*- End of function --------------------------------------------------------*/ |
4138 | |
4139 | SPAN_DECLARE(void)__attribute__((visibility("default"))) void v150_1_set_far_cdscselect(v150_1_state_t *s, v150_1_cdscselect_t select) |
4140 | { |
4141 | s->far.parms.cdscselect = select; |
4142 | set_joint_cdscselect(s); |
4143 | } |
4144 | /*- End of function --------------------------------------------------------*/ |
4145 | |
4146 | SPAN_DECLARE(void)__attribute__((visibility("default"))) void v150_1_set_call_discrimination_timeout(v150_1_state_t *s, int timeout) |
4147 | { |
4148 | s->call_discrimination_timeout = timeout; |
4149 | } |
4150 | /*- End of function --------------------------------------------------------*/ |
4151 | |
4152 | SPAN_DECLARE(logging_state_t *)__attribute__((visibility("default"))) logging_state_t * v150_1_get_logging_state(v150_1_state_t *s) |
4153 | { |
4154 | return &s->logging; |
4155 | } |
4156 | /*- End of function --------------------------------------------------------*/ |
4157 | |
4158 | int sse_status_handler(v150_1_state_t *s, int status) |
4159 | { |
4160 | span_log(&s->logging, SPAN_LOG_FLOW, "SSE status event %s\n", v150_1_sse_status_to_str(status)); |
4161 | return 0; |
4162 | } |
4163 | /*- End of function --------------------------------------------------------*/ |
4164 | |
4165 | static void sprt_status_handler(void *user_data, int status) |
4166 | { |
4167 | v150_1_state_t *s; |
4168 | |
4169 | s = (v150_1_state_t *) user_data; |
4170 | span_log(&s->logging, SPAN_LOG_FLOW, "SPRT status event %d\n", status); |
4171 | } |
4172 | /*- End of function --------------------------------------------------------*/ |
4173 | |
4174 | static void call_discrimination_timer_expired(v150_1_state_t *s, span_timestamp_t now) |
4175 | { |
4176 | v150_1_state_machine(s, V150_1_SIGNAL_CALL_DISCRIMINATION_TIMER_EXPIRED, NULL((void*)0), 0); |
4177 | } |
4178 | /*- End of function --------------------------------------------------------*/ |
4179 | |
4180 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_timer_expired(v150_1_state_t *s, span_timestamp_t now) |
4181 | { |
4182 | span_log(&s->logging, SPAN_LOG_FLOW, "V.150.1 timer expired at %lu\n", now); |
4183 | |
4184 | if (now < s->latest_timer) |
4185 | { |
4186 | span_log(&s->logging, SPAN_LOG_FLOW, "V.150.1 timer returned %luus early\n", s->latest_timer - now); |
4187 | /* Request the same timeout point again. */ |
4188 | if (s->timer_handler) |
4189 | s->timer_handler(s->timer_user_data, s->latest_timer); |
4190 | /*endif*/ |
4191 | return 0; |
4192 | } |
4193 | /*endif*/ |
4194 | |
4195 | if (s->call_discrimination_timer != 0 && s->call_discrimination_timer <= now) |
4196 | { |
4197 | span_log(&s->logging, SPAN_LOG_FLOW, "Call discrimination timer expired\n"); |
4198 | call_discrimination_timer_expired(s, now); |
4199 | } |
4200 | /*endif*/ |
4201 | if (s->sse_timer != 0 && s->sse_timer <= now) |
4202 | { |
4203 | span_log(&s->logging, SPAN_LOG_FLOW, "SSE timer expired\n"); |
4204 | v150_1_sse_timer_expired(s, now); |
4205 | } |
4206 | /*endif*/ |
4207 | if (s->sprt_timer != 0 && s->sprt_timer <= now) |
4208 | { |
4209 | span_log(&s->logging, SPAN_LOG_FLOW, "SPRT timer expired\n"); |
4210 | sprt_timer_expired(&s->sprt, now); |
4211 | } |
4212 | /*endif*/ |
4213 | return 0; |
4214 | } |
4215 | /*- End of function --------------------------------------------------------*/ |
4216 | |
4217 | static span_timestamp_t select_timer(v150_1_state_t *s) |
4218 | { |
4219 | span_timestamp_t shortest; |
4220 | int shortest_is; |
4221 | |
4222 | /* Find the earliest expiring of the active timers, and set the timeout to that. */ |
4223 | shortest = ~0; |
4224 | shortest_is = 0; |
4225 | if (s->sprt_timer && s->sprt_timer < shortest) |
4226 | { |
4227 | shortest = s->sprt_timer; |
4228 | shortest_is = 0; |
4229 | } |
4230 | /*endif*/ |
4231 | if (s->sse_timer && s->sse_timer < shortest) |
4232 | { |
4233 | shortest = s->sse_timer; |
4234 | shortest_is = 1; |
4235 | } |
4236 | /*endif*/ |
4237 | if (s->call_discrimination_timer && s->call_discrimination_timer < shortest) |
4238 | { |
4239 | shortest = s->call_discrimination_timer; |
4240 | shortest_is = 2; |
4241 | } |
4242 | /*endif*/ |
4243 | |
4244 | /* If we haven't shrunk shortest from maximum, we have no timer to set, so we stop the timer, |
4245 | if its set. */ |
4246 | if (shortest == ~0) |
4247 | shortest = 0; |
4248 | /*endif*/ |
4249 | span_log(&s->logging, SPAN_LOG_FLOW, "Update timer to %lu (%d)\n", shortest, shortest_is); |
4250 | s->latest_timer = shortest; |
4251 | return shortest; |
4252 | } |
4253 | /*- End of function --------------------------------------------------------*/ |
4254 | |
4255 | static span_timestamp_t update_call_discrimination_timer(v150_1_state_t *s, span_timestamp_t timeout) |
4256 | { |
4257 | span_timestamp_t res; |
4258 | |
4259 | if (timeout != ~0) |
4260 | { |
4261 | s->call_discrimination_timer = timeout; |
4262 | timeout = select_timer(s); |
4263 | } |
4264 | /*endif*/ |
4265 | res = 0; |
4266 | if (s->timer_handler) |
4267 | res = s->timer_handler(s->timer_user_data, timeout); |
4268 | /*endif*/ |
4269 | return res; |
4270 | } |
4271 | /*- End of function --------------------------------------------------------*/ |
4272 | |
4273 | span_timestamp_t update_sse_timer(void *user_data, span_timestamp_t timeout) |
4274 | { |
4275 | v150_1_state_t *s; |
4276 | span_timestamp_t res; |
4277 | |
4278 | s = (v150_1_state_t *) user_data; |
4279 | if (timeout != ~0) |
4280 | { |
4281 | s->sse_timer = timeout; |
4282 | timeout = select_timer(s); |
4283 | } |
4284 | /*endif*/ |
4285 | res = 0; |
4286 | if (s->timer_handler) |
4287 | res = s->timer_handler(s->timer_user_data, timeout); |
4288 | /*endif*/ |
4289 | return res; |
4290 | } |
4291 | /*- End of function --------------------------------------------------------*/ |
4292 | |
4293 | static span_timestamp_t update_sprt_timer(void *user_data, span_timestamp_t timeout) |
4294 | { |
4295 | v150_1_state_t *s; |
4296 | span_timestamp_t res; |
4297 | |
4298 | s = (v150_1_state_t *) user_data; |
4299 | if (timeout != ~0) |
4300 | { |
4301 | s->sprt_timer = timeout; |
4302 | timeout = select_timer(s); |
4303 | } |
4304 | /*endif*/ |
4305 | res = 0; |
4306 | if (s->timer_handler) |
4307 | res = s->timer_handler(s->timer_user_data, timeout); |
4308 | /*endif*/ |
4309 | return res; |
4310 | } |
4311 | /*- End of function --------------------------------------------------------*/ |
4312 | |
4313 | SPAN_DECLARE(v150_1_state_t *)__attribute__((visibility("default"))) v150_1_state_t * v150_1_init(v150_1_state_t *s, |
4314 | sprt_tx_packet_handler_t sprt_tx_packet_handler, |
4315 | void *sprt_tx_packet_handler_user_data, |
4316 | uint8_t sprt_tx_payload_type, |
4317 | uint8_t sprt_rx_payload_type, |
4318 | v150_1_sse_tx_packet_handler_t sse_tx_packet_handler, |
4319 | void *sse_tx_packet_user_data, |
4320 | v150_1_timer_handler_t v150_1_timer_handler, |
4321 | void *v150_1_timer_user_data, |
4322 | v150_1_rx_data_handler_t rx_data_handler, |
4323 | void *rx_data_handler_user_data, |
4324 | v150_1_rx_status_report_handler_t rx_status_report_handler, |
4325 | void *rx_status_report_user_data, |
4326 | v150_1_spe_signal_handler_t spe_signal_handler, |
4327 | void *spe_signal_handler_user_data) |
4328 | { |
4329 | if (sprt_tx_packet_handler == NULL((void*)0) || rx_data_handler == NULL((void*)0) || rx_status_report_handler == NULL((void*)0)) |
4330 | return NULL((void*)0); |
4331 | /*endif*/ |
4332 | if (s == NULL((void*)0)) |
4333 | { |
4334 | if ((s = (v150_1_state_t *) span_alloc(sizeof(*s))) == NULL((void*)0)) |
4335 | return NULL((void*)0); |
4336 | /*endif*/ |
4337 | } |
4338 | /*endif*/ |
4339 | memset(s, 0, sizeof(*s)); |
4340 | |
4341 | span_log_init(&s->logging, SPAN_LOG_NONE, NULL((void*)0)); |
4342 | span_log_set_protocol(&s->logging, "V.150.1"); |
4343 | |
4344 | s->near.max_payload_bytes[SPRT_TCID_UNRELIABLE_UNSEQUENCED] = SPRT_DEFAULT_TC0_PAYLOAD_BYTES140; |
4345 | s->near.max_payload_bytes[SPRT_TCID_RELIABLE_SEQUENCED] = SPRT_DEFAULT_TC1_PAYLOAD_BYTES132; |
4346 | s->near.max_payload_bytes[SPRT_TCID_EXPEDITED_RELIABLE_SEQUENCED] = SPRT_DEFAULT_TC2_PAYLOAD_BYTES132; |
4347 | s->near.max_payload_bytes[SPRT_TCID_UNRELIABLE_SEQUENCED] = SPRT_DEFAULT_TC3_PAYLOAD_BYTES140; |
4348 | |
4349 | s->near.parms.v42bis_p0 = 3; |
4350 | s->near.parms.v42bis_p1 = 512; |
4351 | s->near.parms.v42bis_p2 = 6; |
4352 | s->near.parms.v44_c0 = 0; |
4353 | s->near.parms.v44_p0 = 0; |
4354 | s->near.parms.v44_p1t = 0; |
4355 | s->near.parms.v44_p1r = 0; |
4356 | s->near.parms.v44_p2t = 0; |
4357 | s->near.parms.v44_p2r = 0; |
4358 | s->near.parms.v44_p3t = 0; |
4359 | s->near.parms.v44_p3r = 0; |
4360 | |
4361 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_CALL_FUNCTION_1] = true1; |
4362 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_CALL_FUNCTION_1] = V150_1_JM_CALL_FUNCTION_V_SERIES; |
4363 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_MODULATION_MODES] = true1; |
4364 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_MODULATION_MODES] = |
4365 | V150_1_JM_MODULATION_MODE_V34_AVAILABLE |
4366 | | V150_1_JM_MODULATION_MODE_V32_V32bis_AVAILABLE |
4367 | | V150_1_JM_MODULATION_MODE_V22_V22bis_AVAILABLE |
4368 | | V150_1_JM_MODULATION_MODE_V21_AVAILABLE; |
4369 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_PROTOCOLS] = true1; |
4370 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_PROTOCOLS] = V150_1_JM_PROTOCOL_V42_LAPM; |
4371 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_PSTN_ACCESS] = true1; |
4372 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_PSTN_ACCESS] = 0; |
4373 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_PCM_MODEM_AVAILABILITY] = false0; |
4374 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_PCM_MODEM_AVAILABILITY] = 0; |
4375 | s->near.parms.jm_category_id_seen[V150_1_JM_CATEGORY_ID_EXTENSION] = false0; |
4376 | s->near.parms.jm_category_info[V150_1_JM_CATEGORY_ID_EXTENSION] = 0; |
4377 | |
4378 | s->near.parms.selmod = V150_1_SELMOD_NULL; |
4379 | s->near.parms.selected_compression_direction = V150_1_COMPRESS_NEITHER_WAY; |
4380 | s->near.parms.selected_compression = V150_1_COMPRESSION_NONE; |
4381 | s->near.parms.selected_error_correction = V150_1_ERROR_CORRECTION_NONE; |
4382 | s->near.parms.tdsr = 0; |
4383 | s->near.parms.rdsr = 0; |
4384 | s->near.parms.txsen = false0; |
4385 | s->near.parms.txsr = V150_1_SYMBOL_RATE_NULL; |
4386 | s->near.parms.rxsen = false0; |
4387 | s->near.parms.rxsr = V150_1_SYMBOL_RATE_NULL; |
4388 | |
4389 | /* Set default values that suit V.42bis */ |
4390 | s->near.parms.compression_tx_dictionary_size = 512; |
4391 | s->near.parms.compression_rx_dictionary_size = 512; |
4392 | s->near.parms.compression_tx_string_length = 6; |
4393 | s->near.parms.compression_rx_string_length = 6; |
4394 | s->near.parms.compression_tx_history_size = 0; |
4395 | s->near.parms.compression_rx_history_size = 0; |
4396 | |
4397 | s->near.parms.ecp = V150_1_ERROR_CORRECTION_V42_LAPM; |
4398 | s->near.parms.v42_lapm_supported = true1; |
4399 | s->near.parms.v42_annex_a_supported = false0; /* This will never be supported, as it was removed from the V.42 spec in 2002. */ |
4400 | s->near.parms.v42bis_supported = true1; |
4401 | s->near.parms.v44_supported = false0; |
4402 | s->near.parms.mnp5_supported = false0; |
4403 | |
4404 | s->near.parms.necrxch_option = false0; |
4405 | s->near.parms.ecrxch_option = true1; |
4406 | s->near.parms.xid_profile_exchange_supported = false0; |
4407 | s->near.parms.asymmetric_data_types_supported = false0; |
4408 | |
4409 | s->near.parms.i_raw_bit_supported = false0; |
4410 | s->near.parms.i_frame_supported = false0; |
4411 | s->near.parms.i_char_stat_supported = false0; |
4412 | s->near.parms.i_char_dyn_supported = false0; |
4413 | s->near.parms.i_octet_cs_supported = true1; |
4414 | s->near.parms.i_char_stat_cs_supported = false0; |
4415 | s->near.parms.i_char_dyn_cs_supported = false0; |
4416 | |
4417 | /* Set a default character format. */ |
4418 | s->near.parms.data_format_code = (V150_1_DATA_BITS_7 << 6) |
4419 | | (V150_1_PARITY_EVEN << 3) |
4420 | | V150_1_STOP_BITS_1; |
4421 | s->far.parms.data_format_code = -1; |
4422 | |
4423 | s->remote_media_state = V150_1_MEDIA_STATE_INITIAL_AUDIO; |
4424 | s->local_media_state = V150_1_MEDIA_STATE_INITIAL_AUDIO; |
4425 | |
4426 | s->call_discrimination_timeout = V150_1_CALL_DISCRIMINATION_DEFAULT_TIMEOUT60000000; |
4427 | |
4428 | s->near.parms.sprt_subsession_id = 0; |
4429 | s->near.parms.sprt_payload_type = sprt_tx_payload_type; |
4430 | s->far.parms.sprt_payload_type = sprt_rx_payload_type; |
4431 | |
4432 | s->rx_data_handler = rx_data_handler; |
4433 | s->rx_data_handler_user_data = rx_data_handler_user_data; |
4434 | s->rx_status_report_handler = rx_status_report_handler; |
4435 | s->rx_status_report_user_data = rx_status_report_user_data; |
4436 | |
4437 | s->timer_handler = v150_1_timer_handler; |
4438 | s->timer_user_data = v150_1_timer_user_data; |
4439 | |
4440 | v150_1_sse_init(s, |
4441 | sse_tx_packet_handler, |
4442 | sse_tx_packet_user_data); |
4443 | |
4444 | sprt_init(&s->sprt, |
4445 | s->near.parms.sprt_subsession_id, |
4446 | s->near.parms.sprt_payload_type, |
4447 | s->far.parms.sprt_payload_type, |
4448 | NULL((void*)0) /* Use default params */, |
4449 | sprt_tx_packet_handler, |
4450 | sprt_tx_packet_handler_user_data, |
4451 | process_rx_sprt_msg, |
4452 | s, |
4453 | update_sprt_timer, |
4454 | s, |
4455 | sprt_status_handler, |
4456 | s); |
4457 | |
4458 | return s; |
4459 | } |
4460 | /*- End of function --------------------------------------------------------*/ |
4461 | |
4462 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_release(v150_1_state_t *s) |
4463 | { |
4464 | return 0; |
4465 | } |
4466 | /*- End of function --------------------------------------------------------*/ |
4467 | |
4468 | SPAN_DECLARE(int)__attribute__((visibility("default"))) int v150_1_free(v150_1_state_t *s) |
4469 | { |
4470 | int ret; |
4471 | |
4472 | ret = v150_1_release(s); |
4473 | span_free(s); |
4474 | return ret; |
4475 | } |
4476 | /*- End of function --------------------------------------------------------*/ |
4477 | /*- End of file ------------------------------------------------------------*/ |