1 /*****************************************************************************\
5 **---------------------------------------------------------------------------**
6 ** Copyright: Andreas Eversberg **
7 ** MNCC-Interface: Harald Welte **
11 \*****************************************************************************/
20 #include "gsm_audio.h"
25 #define SOCKET_RETRY_TIMER 5
27 //struct lcr_gsm *gsm = NULL;
31 /* names of MNCC-SAP */
32 static const struct _value_string {
36 { 0, "New call ref" },
37 { 1, "Codec negotiation" },
38 { MNCC_SETUP_REQ, "MNCC_SETUP_REQ" },
39 { MNCC_SETUP_IND, "MNCC_SETUP_IND" },
40 { MNCC_SETUP_RSP, "MNCC_SETUP_RSP" },
41 { MNCC_SETUP_CNF, "MNCC_SETUP_CNF" },
42 { MNCC_SETUP_COMPL_REQ, "MNCC_SETUP_COMPL_REQ" },
43 { MNCC_SETUP_COMPL_IND, "MNCC_SETUP_COMPL_IND" },
44 { MNCC_CALL_CONF_IND, "MNCC_CALL_CONF_IND" },
45 { MNCC_CALL_PROC_REQ, "MNCC_CALL_PROC_REQ" },
46 { MNCC_PROGRESS_REQ, "MNCC_PROGRESS_REQ" },
47 { MNCC_ALERT_REQ, "MNCC_ALERT_REQ" },
48 { MNCC_ALERT_IND, "MNCC_ALERT_IND" },
49 { MNCC_NOTIFY_REQ, "MNCC_NOTIFY_REQ" },
50 { MNCC_NOTIFY_IND, "MNCC_NOTIFY_IND" },
51 { MNCC_DISC_REQ, "MNCC_DISC_REQ" },
52 { MNCC_DISC_IND, "MNCC_DISC_IND" },
53 { MNCC_REL_REQ, "MNCC_REL_REQ" },
54 { MNCC_REL_IND, "MNCC_REL_IND" },
55 { MNCC_REL_CNF, "MNCC_REL_CNF" },
56 { MNCC_FACILITY_REQ, "MNCC_FACILITY_REQ" },
57 { MNCC_FACILITY_IND, "MNCC_FACILITY_IND" },
58 { MNCC_START_DTMF_IND, "MNCC_START_DTMF_IND" },
59 { MNCC_START_DTMF_RSP, "MNCC_START_DTMF_RSP" },
60 { MNCC_START_DTMF_REJ, "MNCC_START_DTMF_REJ" },
61 { MNCC_STOP_DTMF_IND, "MNCC_STOP_DTMF_IND" },
62 { MNCC_STOP_DTMF_RSP, "MNCC_STOP_DTMF_RSP" },
63 { MNCC_MODIFY_REQ, "MNCC_MODIFY_REQ" },
64 { MNCC_MODIFY_IND, "MNCC_MODIFY_IND" },
65 { MNCC_MODIFY_RSP, "MNCC_MODIFY_RSP" },
66 { MNCC_MODIFY_CNF, "MNCC_MODIFY_CNF" },
67 { MNCC_MODIFY_REJ, "MNCC_MODIFY_REJ" },
68 { MNCC_HOLD_IND, "MNCC_HOLD_IND" },
69 { MNCC_HOLD_CNF, "MNCC_HOLD_CNF" },
70 { MNCC_HOLD_REJ, "MNCC_HOLD_REJ" },
71 { MNCC_RETRIEVE_IND, "MNCC_RETRIEVE_IND" },
72 { MNCC_RETRIEVE_CNF, "MNCC_RETRIEVE_CNF" },
73 { MNCC_RETRIEVE_REJ, "MNCC_RETRIEVE_REJ" },
74 { MNCC_USERINFO_REQ, "MNCC_USERINFO_REQ" },
75 { MNCC_USERINFO_IND, "MNCC_USERINFO_IND" },
76 { MNCC_REJ_REQ, "MNCC_REJ_REQ" },
77 { MNCC_REJ_IND, "MNCC_REJ_IND" },
78 { MNCC_PROGRESS_IND, "MNCC_PROGRESS_IND" },
79 { MNCC_CALL_PROC_IND, "MNCC_CALL_PROC_IND" },
80 { MNCC_CALL_CONF_REQ, "MNCC_CALL_CONF_REQ" },
81 { MNCC_START_DTMF_REQ, "MNCC_START_DTMF_REQ" },
82 { MNCC_STOP_DTMF_REQ, "MNCC_STOP_DTMF_REQ" },
83 { MNCC_HOLD_REQ, "MNCC_HOLD_REQ " },
84 { MNCC_RETRIEVE_REQ, "MNCC_RETRIEVE_REQ" },
85 { MNCC_LCHAN_MODIFY, "MNCC_LCHAN_MODIFY" },
89 const char *mncc_name(int value)
93 while (mncc_names[i].name) {
94 if (mncc_names[i].msg_type == value)
95 return mncc_names[i].name;
101 static int mncc_send(struct lcr_gsm *lcr_gsm, int msg_type, void *data);
104 * create and send mncc message
106 struct gsm_mncc *create_mncc(int msg_type, unsigned int callref)
108 struct gsm_mncc *mncc;
110 mncc = (struct gsm_mncc *)MALLOC(sizeof(struct gsm_mncc));
111 mncc->msg_type = msg_type;
112 mncc->callref = callref;
115 int send_and_free_mncc(struct lcr_gsm *lcr_gsm, unsigned int msg_type, void *data)
120 ret = mncc_send(lcr_gsm, msg_type, data);
127 void Pgsm::send_mncc_rtp_connect(void)
129 struct gsm_mncc_rtp *nrtp;
131 nrtp = (struct gsm_mncc_rtp *) create_mncc(MNCC_RTP_CONNECT, p_g_callref);
132 nrtp->ip = p_g_rtp_ip_remote;
133 nrtp->port = p_g_rtp_port_remote;
134 switch (p_g_media_type) {
136 nrtp->payload_msg_type = GSM_TCHF_FRAME;
138 case MEDIA_TYPE_GSM_EFR:
139 nrtp->payload_msg_type = GSM_TCHF_FRAME_EFR;
142 nrtp->payload_msg_type = GSM_TCHF_FRAME_AMR;
144 case MEDIA_TYPE_GSM_HR:
145 nrtp->payload_msg_type = GSM_TCHF_FRAME_HR;
148 nrtp->payload_type = p_g_payload_type;
149 PDEBUG(DEBUG_GSM, "sending MNCC RTP connect with payload_msg_type=%x, payload_type=%d\n", nrtp->payload_msg_type, nrtp->payload_type);
150 send_and_free_mncc(p_g_lcr_gsm, nrtp->msg_type, nrtp);
153 static int delete_event(struct lcr_work *work, void *instance, int index);
158 Pgsm::Pgsm(int type, char *portname, struct port_settings *settings, struct interface *interface) : Port(type, portname, settings)
161 if (interface->is_tones == IS_YES)
164 if (interface->is_earlyb == IS_YES)
167 if (interface->rtp_bridge)
169 p_g_rtp_payloads = 0;
170 memset(&p_g_samples, 0, sizeof(p_g_samples));
171 SCPY(p_g_interface_name, interface->name);
172 p_callerinfo.itype = (interface->extension)?INFO_ITYPE_ISDN_EXTENSION:INFO_ITYPE_ISDN;
173 memset(&p_g_delete, 0, sizeof(p_g_delete));
174 add_work(&p_g_delete, delete_event, this, 0);
179 p_g_gsm_b_index = -1;
180 p_g_gsm_b_active = 0;
181 p_g_notify_pending = NULL;
182 p_g_setup_pending = NULL;
183 p_g_connect_pending = NULL;
184 p_g_decoder = gsm_audio_create();
185 p_g_encoder = gsm_audio_create();
186 if (!p_g_encoder || !p_g_decoder) {
187 PERROR("Failed to create GSM audio codec instance\n");
188 trigger_work(&p_g_delete);
191 p_g_tch_connected = 0;
194 PDEBUG(DEBUG_GSM, "Created new GSMPort(%s).\n", portname);
202 PDEBUG(DEBUG_GSM, "Destroyed GSM process(%s).\n", p_name);
204 del_work(&p_g_delete);
206 /* remove queued message */
207 if (p_g_notify_pending)
208 message_free(p_g_notify_pending);
209 if (p_g_setup_pending)
210 message_free(p_g_setup_pending);
211 if (p_g_connect_pending)
212 message_free(p_g_connect_pending);
216 gsm_audio_destroy(p_g_encoder);
218 gsm_audio_destroy(p_g_decoder);
222 /* receive encoded frame from gsm */
223 void Pgsm::frame_receive(void *arg)
225 struct gsm_data_frame *frame = (struct gsm_data_frame *)arg;
226 unsigned char data[160];
232 if (frame->msg_type != GSM_TCHF_BAD_FRAME) {
233 if ((frame->data[0]>>4) != 0xd)
234 PERROR("received GSM frame with wrong magig 0x%x\n", frame->data[0]>>4);
237 gsm_audio_decode(p_g_decoder, frame->data, p_g_samples);
238 for (i = 0; i < 160; i++) {
239 data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
241 } else if (p_echotest) {
242 /* beep on bad frame */
243 for (i = 0; i < 160; i++) {
245 p_g_samples[i] = 15000;
247 p_g_samples[i] = -15000;
248 data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
251 /* repeat on bad frame */
252 for (i = 0; i < 160; i++) {
253 p_g_samples[i] = (p_g_samples[i] * 14) >> 4;
254 data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
260 bridge_rx(data, 160);
263 bridge_tx(data, 160);
266 /* send traffic to gsm */
267 int Pgsm::bridge_rx(unsigned char *data, int len)
272 return audio_send(data, len);
275 int Pgsm::audio_send(unsigned char *data, int len)
277 unsigned char frame[33];
279 /* encoder init failed */
283 /* (currently) not connected, so don't flood tch! */
284 if (!p_g_tch_connected)
287 /* write to rx buffer */
289 p_g_rxdata[p_g_rxpos++] = audio_law_to_s32[*data++];
290 if (p_g_rxpos == 160) {
294 gsm_audio_encode(p_g_encoder, p_g_rxdata, frame);
302 void Pgsm::frame_send(void *_frame)
304 unsigned char buffer[sizeof(struct gsm_data_frame) + 33];
305 struct gsm_data_frame *frame = (struct gsm_data_frame *)buffer;
307 frame->msg_type = GSM_TCHF_FRAME;
308 frame->callref = p_g_callref;
309 memcpy(frame->data, _frame, 33);
312 mncc_send(p_g_lcr_gsm, frame->msg_type, frame);
319 void gsm_trace_header(const char *interface_name, class Pgsm *port, unsigned int msg_type, int direction)
322 struct interface *interface = interface_first;
324 interface = getinterfacebyname(interface_name);
328 /* select message and primitive text */
329 SCPY(msgtext, mncc_name(msg_type));
333 switch(port->p_type) {
334 case PORT_TYPE_GSM_BS_OUT:
335 case PORT_TYPE_GSM_BS_IN:
336 SCAT(msgtext, " LCR<->BSC");
338 case PORT_TYPE_GSM_MS_OUT:
339 case PORT_TYPE_GSM_MS_IN:
340 SCAT(msgtext, " LCR<->MS");
344 SCAT(msgtext, " ----");
346 /* init trace with given values */
349 port?numberrize_callerinfo(port->p_callerinfo.id, port->p_callerinfo.ntype, options.national, options.international):NULL,
350 port?port->p_dialinginfo.id:NULL,
353 port?port->p_serial:0,
357 /* modify lchan to given payload type */
358 void Pgsm::modify_lchan(int media_type)
360 struct gsm_mncc *mode;
362 /* already modified to that payload type */
363 if (p_g_media_type == media_type)
366 p_g_media_type = media_type;
367 gsm_trace_header(p_g_interface_name, this, MNCC_LCHAN_MODIFY, DIRECTION_OUT);
368 mode = create_mncc(MNCC_LCHAN_MODIFY, p_g_callref);
369 switch (media_type) {
370 case MEDIA_TYPE_GSM_EFR:
371 add_trace("speech", "version", "EFR given");
372 mode->lchan_mode = 0x21; /* GSM V2 */
375 add_trace("speech", "version", "AMR given");
376 mode->lchan_mode = 0x41; /* GSM V3 */
378 case MEDIA_TYPE_GSM_HR:
379 add_trace("speech", "version", "Half Rate given");
380 mode->lchan_mode = 0x05; /* GSM V1 HR */
383 add_trace("speech", "version", "Full Rate given");
384 mode->lchan_mode = 0x01; /* GSM V1 */
386 mode->lchan_type = 0x02; /* FIXME: unused */
387 add_trace("mode", NULL, "0x%02x", mode->lchan_mode);
389 send_and_free_mncc(p_g_lcr_gsm, mode->msg_type, mode);
392 /* CALL PROCEEDING INDICATION (from network) */
393 void Pgsm::call_proc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
395 struct lcr_msg *message;
396 struct gsm_mncc *frame;
398 gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
401 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROCEEDING);
402 message_put(message);
404 new_state(PORT_STATE_OUT_PROCEEDING);
406 if (p_g_earlyb && !p_g_tch_connected) { /* only if ... */
407 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
409 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
410 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
411 p_g_tch_connected = 1;
415 /* ALERTING INDICATION */
416 void Pgsm::alert_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
418 struct lcr_msg *message;
419 struct gsm_mncc *frame;
421 gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
424 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_ALERTING);
425 message_put(message);
427 new_state(PORT_STATE_OUT_ALERTING);
429 if (p_g_earlyb && !p_g_tch_connected) { /* only if ... */
430 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
432 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
433 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
434 p_g_tch_connected = 1;
438 /* CONNECT INDICATION */
439 void Pgsm::setup_cnf(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
441 struct gsm_mncc *resp, *frame;
442 struct lcr_msg *message;
444 SCPY(p_connectinfo.id, mncc->connected.number);
445 SCPY(p_connectinfo.imsi, mncc->imsi);
446 p_connectinfo.present = INFO_PRESENT_ALLOWED;
447 p_connectinfo.screen = INFO_SCREEN_NETWORK;
448 p_connectinfo.ntype = INFO_NTYPE_UNKNOWN;
449 SCPY(p_connectinfo.interface, p_g_interface_name);
451 gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
452 if (p_connectinfo.id[0])
453 add_trace("connect", "number", "%s", p_connectinfo.id);
454 else if (mncc->imsi[0])
455 SPRINT(p_connectinfo.id, "imsi-%s", p_connectinfo.imsi);
457 add_trace("connect", "imsi", "%s", p_connectinfo.imsi);
461 gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_COMPL_REQ, DIRECTION_OUT);
462 resp = create_mncc(MNCC_SETUP_COMPL_REQ, p_g_callref);
464 send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
466 new_state(PORT_STATE_CONNECT);
468 if (!p_g_tch_connected) { /* only if ... */
469 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
471 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
472 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
473 p_g_tch_connected = 1;
476 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CONNECT);
477 memcpy(&message->param.connectinfo, &p_connectinfo, sizeof(struct connect_info));
479 /* if we have a bridge, but not yet modified, the phone accepts out requested payload.
480 * we force the first in list */
481 if (p_g_rtp_bridge) {
482 if (!p_g_media_type) {
483 /* modify to first given type */
484 modify_lchan(p_g_rtp_media_types[0]);
485 /* also set payload type */
486 p_g_payload_type = p_g_rtp_payload_types[0];
488 message->param.connectinfo.rtpinfo.media_types[0] = p_g_media_type;
489 message->param.connectinfo.rtpinfo.payload_types[0] = p_g_payload_type;
490 message->param.connectinfo.rtpinfo.payloads = 1;
493 if (p_g_rtp_bridge) {
494 struct gsm_mncc_rtp *rtp;
496 PDEBUG(DEBUG_GSM, "Request RTP peer info, before forwarding connect msg\n");
497 p_g_connect_pending = message;
498 rtp = (struct gsm_mncc_rtp *) create_mncc(MNCC_RTP_CREATE, p_g_callref);
499 send_and_free_mncc(p_g_lcr_gsm, rtp->msg_type, rtp);
501 message_put(message);
504 /* CONNECT ACK INDICATION */
505 void Pgsm::setup_compl_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
507 struct gsm_mncc *frame;
509 gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
512 new_state(PORT_STATE_CONNECT);
514 if (!p_g_tch_connected) { /* only if ... */
515 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
517 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
518 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
519 p_g_tch_connected = 1;
523 /* DISCONNECT INDICATION */
524 void Pgsm::disc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
526 struct lcr_msg *message;
527 int cause = 16, location = 0;
528 struct gsm_mncc *resp;
530 gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
531 if (mncc->fields & MNCC_F_CAUSE) {
532 location = mncc->cause.location;
533 cause = mncc->cause.value;
534 add_trace("cause", "coding", "%d", mncc->cause.coding);
535 add_trace("cause", "location", "%d", location);
536 add_trace("cause", "value", "%d", cause);
541 resp = create_mncc(MNCC_REL_REQ, p_g_callref);
542 gsm_trace_header(p_g_interface_name, this, MNCC_REL_REQ, DIRECTION_OUT);
544 resp->fields |= MNCC_F_CAUSE;
545 resp->cause.coding = 3;
546 resp->cause.location = 1;
547 resp->cause.value = cause;
548 add_trace("cause", "coding", "%d", resp->cause.coding);
549 add_trace("cause", "location", "%d", resp->cause.location);
550 add_trace("cause", "value", "%d", resp->cause.value);
553 send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
555 /* sending release to endpoint */
556 while(p_epointlist) {
557 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
558 message->param.disconnectinfo.cause = cause;
559 message->param.disconnectinfo.location = location;
560 message_put(message);
562 free_epointlist(p_epointlist);
564 new_state(PORT_STATE_RELEASE);
565 trigger_work(&p_g_delete);
568 /* CC_RELEASE INDICATION */
569 void Pgsm::rel_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
571 int location = 0, cause = 16;
572 struct lcr_msg *message;
574 gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
575 if (mncc->fields & MNCC_F_CAUSE) {
576 location = mncc->cause.location;
577 cause = mncc->cause.value;
578 add_trace("cause", "coding", "%d", mncc->cause.coding);
579 add_trace("cause", "location", "%d", mncc->cause.location);
580 add_trace("cause", "value", "%d", mncc->cause.value);
584 /* sending release to endpoint */
585 while(p_epointlist) {
586 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
587 message->param.disconnectinfo.cause = cause;
588 message->param.disconnectinfo.location = location;
589 message_put(message);
591 free_epointlist(p_epointlist);
593 new_state(PORT_STATE_RELEASE);
594 trigger_work(&p_g_delete);
597 /* NOTIFY INDICATION */
598 void Pgsm::notify_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
600 struct lcr_msg *message;
602 gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
603 add_trace("notify", NULL, "%d", mncc->notify);
606 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_NOTIFY);
607 message->param.notifyinfo.notify = mncc->notify;
608 message_put(message);
612 void Pgsm::message_notify(unsigned int epoint_id, int message_id, union parameter *param)
614 struct gsm_mncc *mncc;
617 // printf("if = %d\n", param->notifyinfo.notify);
618 if (param->notifyinfo.notify>INFO_NOTIFY_NONE) {
619 notify = param->notifyinfo.notify & 0x7f;
620 if (p_state!=PORT_STATE_CONNECT /*&& p_state!=PORT_STATE_IN_PROCEEDING*/ && p_state!=PORT_STATE_IN_ALERTING) {
621 /* queue notification */
622 if (p_g_notify_pending)
623 message_free(p_g_notify_pending);
624 p_g_notify_pending = message_create(ACTIVE_EPOINT(p_epointlist), p_serial, EPOINT_TO_PORT, message_id);
625 memcpy(&p_g_notify_pending->param, param, sizeof(union parameter));
627 /* sending notification */
628 gsm_trace_header(p_g_interface_name, this, MNCC_NOTIFY_REQ, DIRECTION_OUT);
629 add_trace("notify", NULL, "%d", notify);
631 mncc = create_mncc(MNCC_NOTIFY_REQ, p_g_callref);
632 mncc->notify = notify;
633 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
638 /* RTP create indication */
639 void Pgsm::rtp_create_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
641 struct gsm_mncc_rtp *rtp = (struct gsm_mncc_rtp *) mncc;
643 /* send queued setup, as we received remote RTP info */
644 if (p_g_setup_pending) {
645 struct lcr_msg *message;
647 message = p_g_setup_pending;
648 PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) forwarding setup\n", rtp->ip, rtp->port);
649 message->param.setup.rtpinfo.ip = rtp->ip;
650 message->param.setup.rtpinfo.port = rtp->port;
651 message_put(message);
652 p_g_setup_pending = NULL;
654 if (p_g_connect_pending) {
655 PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) connecting RTP... \n", rtp->ip, rtp->port);
656 send_mncc_rtp_connect();
660 /* RTP connect indication */
661 void Pgsm::rtp_connect_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
663 struct lcr_msg *message;
664 struct gsm_mncc_rtp *rtp = (struct gsm_mncc_rtp *) mncc;
666 if (p_g_connect_pending) {
667 message = p_g_connect_pending;
668 PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) forwarding connect\n", rtp->ip, rtp->port);
669 message->param.connectinfo.rtpinfo.ip = rtp->ip;
670 message->param.connectinfo.rtpinfo.port = rtp->port;
671 message_put(message);
672 p_g_connect_pending = NULL;
676 /* MESSAGE_PROGRESS */
677 void Pgsm::message_progress(unsigned int epoint_id, int message_id, union parameter *param)
679 if (param->progressinfo.progress == 8) {
680 PDEBUG(DEBUG_GSM, "Remote provides tones for us\n");
684 if (param->progressinfo.rtpinfo.port) {
685 PDEBUG(DEBUG_GSM, "PROGRESS with RTP peer info, sent to BSC (%08x,%d) with media %d, pt %d\n", param->progressinfo.rtpinfo.ip, param->progressinfo.rtpinfo.port, param->progressinfo.rtpinfo.media_types[0], param->progressinfo.rtpinfo.payload_types[0]);
687 /* modify channel to givne type, also sets media type */
688 modify_lchan(param->progressinfo.rtpinfo.media_types[0]);
691 p_g_rtp_ip_remote = param->progressinfo.rtpinfo.ip;
692 p_g_rtp_port_remote = param->progressinfo.rtpinfo.port;
693 /* p_g_media_type is already set by modify_lchan() */
694 p_g_payload_type = param->progressinfo.rtpinfo.payload_types[0];
695 send_mncc_rtp_connect();
699 /* MESSAGE_ALERTING */
700 void Pgsm::message_alerting(unsigned int epoint_id, int message_id, union parameter *param)
702 struct gsm_mncc *mncc;
705 gsm_trace_header(p_g_interface_name, this, MNCC_ALERT_REQ, DIRECTION_OUT);
706 mncc = create_mncc(MNCC_ALERT_REQ, p_g_callref);
708 mncc->fields |= MNCC_F_PROGRESS;
709 mncc->progress.coding = 3; /* GSM */
710 mncc->progress.location = 1;
711 mncc->progress.descr = 8;
712 add_trace("progress", "coding", "%d", mncc->progress.coding);
713 add_trace("progress", "location", "%d", mncc->progress.location);
714 add_trace("progress", "descr", "%d", mncc->progress.descr);
717 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
719 new_state(PORT_STATE_IN_ALERTING);
721 if (p_g_tones && !p_g_tch_connected) { /* only if ... */
722 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
724 mncc = create_mncc(MNCC_FRAME_RECV, p_g_callref);
725 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
726 p_g_tch_connected = 1;
730 /* MESSAGE_CONNECT */
731 void Pgsm::message_connect(unsigned int epoint_id, int message_id, union parameter *param)
733 struct gsm_mncc *mncc;
735 /* copy connected information */
736 memcpy(&p_connectinfo, ¶m->connectinfo, sizeof(p_connectinfo));
737 /* screen outgoing caller id */
738 do_screen(1, p_connectinfo.id, sizeof(p_connectinfo.id), &p_connectinfo.ntype, &p_connectinfo.present, p_g_interface_name);
741 mncc = create_mncc(MNCC_SETUP_RSP, p_g_callref);
742 gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_RSP, DIRECTION_OUT);
743 /* caller information */
744 mncc->fields |= MNCC_F_CONNECTED;
745 mncc->connected.plan = 1;
746 switch (p_callerinfo.ntype) {
747 case INFO_NTYPE_UNKNOWN:
748 mncc->connected.type = 0x0;
750 case INFO_NTYPE_INTERNATIONAL:
751 mncc->connected.type = 0x1;
753 case INFO_NTYPE_NATIONAL:
754 mncc->connected.type = 0x2;
756 case INFO_NTYPE_SUBSCRIBER:
757 mncc->connected.type = 0x4;
759 default: /* INFO_NTYPE_NOTPRESENT */
760 mncc->fields &= ~MNCC_F_CONNECTED;
763 switch (p_callerinfo.screen) {
764 case INFO_SCREEN_USER:
765 mncc->connected.screen = 0;
767 default: /* INFO_SCREEN_NETWORK */
768 mncc->connected.screen = 3;
771 switch (p_callerinfo.present) {
772 case INFO_PRESENT_ALLOWED:
773 mncc->connected.present = 0;
775 case INFO_PRESENT_RESTRICTED:
776 mncc->connected.present = 1;
778 default: /* INFO_PRESENT_NOTAVAIL */
779 mncc->connected.present = 2;
782 if (mncc->fields & MNCC_F_CONNECTED) {
783 SCPY(mncc->connected.number, p_connectinfo.id);
784 add_trace("connected", "type", "%d", mncc->connected.type);
785 add_trace("connected", "plan", "%d", mncc->connected.plan);
786 add_trace("connected", "present", "%d", mncc->connected.present);
787 add_trace("connected", "screen", "%d", mncc->connected.screen);
788 add_trace("connected", "number", "%s", mncc->connected.number);
791 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
793 new_state(PORT_STATE_CONNECT_WAITING);
795 if (param->connectinfo.rtpinfo.port) {
796 PDEBUG(DEBUG_GSM, "CONNECT with RTP peer info, sent to BSC (%08x,%d)\n", param->connectinfo.rtpinfo.ip, param->connectinfo.rtpinfo.port);
798 /* modify channel to givne type, also sets media type */
799 modify_lchan(param->connectinfo.rtpinfo.media_types[0]);
802 p_g_rtp_ip_remote = param->connectinfo.rtpinfo.ip;
803 p_g_rtp_port_remote = param->connectinfo.rtpinfo.port;
804 /* p_g_media_type is already set by modify_lchan() */
805 p_g_payload_type = param->connectinfo.rtpinfo.payload_types[0];
806 send_mncc_rtp_connect();
810 /* MESSAGE_DISCONNECT */
811 void Pgsm::message_disconnect(unsigned int epoint_id, int message_id, union parameter *param)
813 struct gsm_mncc *mncc;
815 /* send disconnect */
816 mncc = create_mncc(MNCC_DISC_REQ, p_g_callref);
817 gsm_trace_header(p_g_interface_name, this, MNCC_DISC_REQ, DIRECTION_OUT);
819 mncc->fields |= MNCC_F_PROGRESS;
820 mncc->progress.coding = 3; /* GSM */
821 mncc->progress.location = 1;
822 mncc->progress.descr = 8;
823 add_trace("progress", "coding", "%d", mncc->progress.coding);
824 add_trace("progress", "location", "%d", mncc->progress.location);
825 add_trace("progress", "descr", "%d", mncc->progress.descr);
827 mncc->fields |= MNCC_F_CAUSE;
828 mncc->cause.coding = 3;
829 mncc->cause.location = param->disconnectinfo.location;
830 mncc->cause.value = param->disconnectinfo.cause;
831 add_trace("cause", "coding", "%d", mncc->cause.coding);
832 add_trace("cause", "location", "%d", mncc->cause.location);
833 add_trace("cause", "value", "%d", mncc->cause.value);
835 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
837 new_state(PORT_STATE_OUT_DISCONNECT);
839 if (p_g_tones && !p_g_tch_connected) { /* only if ... */
840 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
842 mncc = create_mncc(MNCC_FRAME_RECV, p_g_callref);
843 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
844 p_g_tch_connected = 1;
849 /* MESSAGE_RELEASE */
850 void Pgsm::message_release(unsigned int epoint_id, int message_id, union parameter *param)
852 struct gsm_mncc *mncc;
855 mncc = create_mncc(MNCC_REL_REQ, p_g_callref);
856 gsm_trace_header(p_g_interface_name, this, MNCC_REL_REQ, DIRECTION_OUT);
857 mncc->fields |= MNCC_F_CAUSE;
858 mncc->cause.coding = 3;
859 mncc->cause.location = param->disconnectinfo.location;
860 mncc->cause.value = param->disconnectinfo.cause;
861 add_trace("cause", "coding", "%d", mncc->cause.coding);
862 add_trace("cause", "location", "%d", mncc->cause.location);
863 add_trace("cause", "value", "%d", mncc->cause.value);
865 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
867 new_state(PORT_STATE_RELEASE);
868 trigger_work(&p_g_delete);
873 * endpoint sends messages to the port
875 int Pgsm::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
879 if (Port::message_epoint(epoint_id, message_id, param))
883 case MESSAGE_NOTIFY: /* display and notifications */
885 message_notify(epoint_id, message_id, param);
888 // case MESSAGE_FACILITY: /* facility message */
889 // message_facility(epoint_id, message_id, param);
892 case MESSAGE_PROCEEDING: /* message not handles */
896 case MESSAGE_PROGRESS:
898 message_progress(epoint_id, message_id, param);
901 case MESSAGE_ALERTING: /* call of endpoint is ringing */
903 if (p_state!=PORT_STATE_IN_PROCEEDING)
905 message_alerting(epoint_id, message_id, param);
906 if (p_g_notify_pending) {
907 /* send pending notify message during connect */
908 message_notify(ACTIVE_EPOINT(p_epointlist), p_g_notify_pending->type, &p_g_notify_pending->param);
909 message_free(p_g_notify_pending);
910 p_g_notify_pending = NULL;
914 case MESSAGE_CONNECT: /* call of endpoint is connected */
916 if (p_state!=PORT_STATE_IN_PROCEEDING
917 && p_state!=PORT_STATE_IN_ALERTING)
919 message_connect(epoint_id, message_id, param);
920 if (p_g_notify_pending) {
921 /* send pending notify message during connect */
922 message_notify(ACTIVE_EPOINT(p_epointlist), p_g_notify_pending->type, &p_g_notify_pending->param);
923 message_free(p_g_notify_pending);
924 p_g_notify_pending = NULL;
928 case MESSAGE_DISCONNECT: /* call has been disconnected */
930 if (p_state!=PORT_STATE_IN_PROCEEDING
931 && p_state!=PORT_STATE_IN_ALERTING
932 && p_state!=PORT_STATE_OUT_SETUP
933 && p_state!=PORT_STATE_OUT_OVERLAP
934 && p_state!=PORT_STATE_OUT_PROCEEDING
935 && p_state!=PORT_STATE_OUT_ALERTING
936 && p_state!=PORT_STATE_CONNECT
937 && p_state!=PORT_STATE_CONNECT_WAITING)
939 message_disconnect(epoint_id, message_id, param);
942 case MESSAGE_RELEASE: /* release isdn port */
944 if (p_state==PORT_STATE_RELEASE)
946 message_release(epoint_id, message_id, param);
954 /* deletes only if l3id is release, otherwhise it will be triggered then */
955 static int delete_event(struct lcr_work *work, void *instance, int index)
957 class Pgsm *gsmport = (class Pgsm *)instance;
981 static int mncc_q_enqueue(struct lcr_gsm *lcr_gsm, struct gsm_mncc *mncc, unsigned int len)
983 struct mncc_q_entry *qe;
985 qe = (struct mncc_q_entry *) MALLOC(sizeof(*qe)+sizeof(*mncc)+len);
991 memcpy(qe->data, mncc, len);
993 /* in case of empty list ... */
994 if (!lcr_gsm->mncc_q_hd && !lcr_gsm->mncc_q_tail) {
995 /* the list head and tail both point to the new qe */
996 lcr_gsm->mncc_q_hd = lcr_gsm->mncc_q_tail = qe;
998 /* append to tail of list */
999 lcr_gsm->mncc_q_tail->next = qe;
1000 lcr_gsm->mncc_q_tail = qe;
1003 lcr_gsm->mncc_lfd.when |= LCR_FD_WRITE;
1008 static struct mncc_q_entry *mncc_q_dequeue(struct lcr_gsm *lcr_gsm)
1010 struct mncc_q_entry *qe = lcr_gsm->mncc_q_hd;
1014 /* dequeue the successfully sent message */
1015 lcr_gsm->mncc_q_hd = qe->next;
1018 if (qe == lcr_gsm->mncc_q_tail)
1019 lcr_gsm->mncc_q_tail = NULL;
1024 /* routine called by LCR code if it wants to send a message to OpenBSC */
1025 static int mncc_send(struct lcr_gsm *lcr_gsm, int msg_type, void *data)
1029 /* FIXME: the caller should provide this */
1031 case GSM_TCHF_FRAME:
1032 len = sizeof(struct gsm_data_frame) + 33;
1035 len = sizeof(struct gsm_mncc);
1039 return mncc_q_enqueue(lcr_gsm, (struct gsm_mncc *)data, len);
1042 /* close MNCC socket */
1043 static int mncc_fd_close(struct lcr_gsm *lcr_gsm, struct lcr_fd *lfd)
1046 class Pgsm *pgsm = NULL;
1047 struct lcr_msg *message;
1049 PERROR("Lost MNCC socket, retrying in %u seconds\n", SOCKET_RETRY_TIMER);
1054 /* free all the calls that were running through the MNCC interface */
1057 if ((port->p_type & PORT_CLASS_mISDN_MASK) == PORT_CLASS_GSM) {
1058 pgsm = (class Pgsm *)port;
1059 if (pgsm->p_g_lcr_gsm == lcr_gsm) {
1060 message = message_create(pgsm->p_serial, ACTIVE_EPOINT(pgsm->p_epointlist), PORT_TO_EPOINT, MESSAGE_RELEASE);
1061 message->param.disconnectinfo.cause = 27; // temp. unavail.
1062 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
1063 message_put(message);
1064 pgsm->new_state(PORT_STATE_RELEASE);
1065 trigger_work(&pgsm->p_g_delete);
1071 /* flush the queue */
1072 while (mncc_q_dequeue(lcr_gsm))
1075 /* start the re-connect timer */
1076 schedule_timer(&lcr_gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
1081 /* write to OpenBSC via MNCC socket */
1082 static int mncc_fd_write(struct lcr_fd *lfd, void *inst, int idx)
1084 struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
1085 struct mncc_q_entry *qe, *qe2;
1089 qe = lcr_gsm->mncc_q_hd;
1091 lfd->when &= ~LCR_FD_WRITE;
1094 rc = write(lfd->fd, qe->data, qe->len);
1096 return mncc_fd_close(lcr_gsm, lfd);
1099 if (rc < (int)qe->len)
1101 /* dequeue the successfully sent message */
1102 qe2 = mncc_q_dequeue(lcr_gsm);
1109 /* read from OpenBSC via MNCC socket */
1110 static int mncc_fd_read(struct lcr_fd *lfd, void *inst, int idx)
1112 struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
1114 static char buf[sizeof(struct gsm_mncc)+1024];
1115 struct gsm_mncc *mncc_prim = (struct gsm_mncc *) buf;
1117 memset(buf, 0, sizeof(buf));
1118 rc = recv(lfd->fd, buf, sizeof(buf), 0);
1120 return mncc_fd_close(lcr_gsm, lfd);
1124 /* Hand the MNCC message into LCR */
1125 switch (lcr_gsm->type) {
1127 case LCR_GSM_TYPE_NETWORK:
1128 return message_bsc(lcr_gsm, mncc_prim->msg_type, mncc_prim);
1131 case LCR_GSM_TYPE_MS:
1132 return message_ms(lcr_gsm, mncc_prim->msg_type, mncc_prim);
1139 /* file descriptor callback if we can read or write form MNCC socket */
1140 static int mncc_fd_cb(struct lcr_fd *lfd, unsigned int what, void *inst, int idx)
1144 if (what & LCR_FD_READ)
1145 rc = mncc_fd_read(lfd, inst, idx);
1149 if (what & LCR_FD_WRITE)
1150 rc = mncc_fd_write(lfd, inst, idx);
1155 int mncc_socket_retry_cb(struct lcr_timer *timer, void *inst, int index)
1157 struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
1160 lcr_gsm->mncc_lfd.fd = -1;
1162 fd = socket(PF_UNIX, SOCK_SEQPACKET, 0);
1164 PERROR("Cannot create SEQPACKET socket, giving up!\n");
1168 rc = connect(fd, (struct sockaddr *) &lcr_gsm->sun,
1169 sizeof(lcr_gsm->sun));
1171 PERROR("Could not connect to MNCC socket %s, "
1172 "retrying in %u seconds\n", lcr_gsm->sun.sun_path,
1173 SOCKET_RETRY_TIMER);
1175 schedule_timer(&lcr_gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
1177 PDEBUG(DEBUG_GSM, "Connected to MNCC socket %s!\n", lcr_gsm->sun.sun_path);
1178 lcr_gsm->mncc_lfd.fd = fd;
1179 register_fd(&lcr_gsm->mncc_lfd, LCR_FD_READ, &mncc_fd_cb, lcr_gsm, 0);