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_TCH_FRAME_AMR;
144 case MEDIA_TYPE_GSM_HR:
145 nrtp->payload_msg_type = GSM_TCHH_FRAME;
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, interface)
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 p_callerinfo.itype = (interface->extension)?INFO_ITYPE_ISDN_EXTENSION:INFO_ITYPE_ISDN;
172 memset(&p_g_delete, 0, sizeof(p_g_delete));
173 add_work(&p_g_delete, delete_event, this, 0);
178 p_g_gsm_b_index = -1;
179 p_g_gsm_b_active = 0;
180 p_g_notify_pending = NULL;
181 p_g_setup_pending = NULL;
182 p_g_connect_pending = NULL;
183 p_g_decoder = gsm_audio_create();
184 p_g_encoder = gsm_audio_create();
185 if (!p_g_encoder || !p_g_decoder) {
186 PERROR("Failed to create GSM audio codec instance\n");
187 trigger_work(&p_g_delete);
190 p_g_tch_connected = 0;
193 PDEBUG(DEBUG_GSM, "Created new GSMPort(%s).\n", portname);
201 PDEBUG(DEBUG_GSM, "Destroyed GSM process(%s).\n", p_name);
203 del_work(&p_g_delete);
205 /* remove queued message */
206 if (p_g_notify_pending)
207 message_free(p_g_notify_pending);
208 if (p_g_setup_pending)
209 message_free(p_g_setup_pending);
210 if (p_g_connect_pending)
211 message_free(p_g_connect_pending);
215 gsm_audio_destroy(p_g_encoder);
217 gsm_audio_destroy(p_g_decoder);
221 /* receive encoded frame from gsm */
222 void Pgsm::frame_receive(void *arg)
224 struct gsm_data_frame *frame = (struct gsm_data_frame *)arg;
225 unsigned char data[160];
231 if (frame->msg_type != GSM_BAD_FRAME) {
232 if ((frame->data[0]>>4) != 0xd)
233 PERROR("received GSM frame with wrong magig 0x%x\n", frame->data[0]>>4);
236 gsm_audio_decode(p_g_decoder, frame->data, p_g_samples);
237 for (i = 0; i < 160; i++) {
238 data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
240 } else if (p_echotest) {
241 /* beep on bad frame */
242 for (i = 0; i < 160; i++) {
244 p_g_samples[i] = 15000;
246 p_g_samples[i] = -15000;
247 data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
250 /* repeat on bad frame */
251 for (i = 0; i < 160; i++) {
252 p_g_samples[i] = (p_g_samples[i] * 14) >> 4;
253 data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
259 record(data, 160, 0); // from down
261 tap(data, 160, 0); // from down
265 bridge_rx(data, 160);
268 bridge_tx(data, 160);
271 /* send traffic to gsm */
272 int Pgsm::bridge_rx(unsigned char *data, int len)
277 return audio_send(data, len);
280 int Pgsm::audio_send(unsigned char *data, int len)
282 unsigned char frame[33];
286 record(data, len, 1); // from up
288 tap(data, len, 1); // from up
290 /* encoder init failed */
294 /* (currently) not connected, so don't flood tch! */
295 if (!p_g_tch_connected)
298 /* write to rx buffer */
300 p_g_rxdata[p_g_rxpos++] = audio_law_to_s32[*data++];
301 if (p_g_rxpos == 160) {
305 gsm_audio_encode(p_g_encoder, p_g_rxdata, frame);
313 void Pgsm::frame_send(void *_frame)
315 unsigned char buffer[sizeof(struct gsm_data_frame) + 33];
316 struct gsm_data_frame *frame = (struct gsm_data_frame *)buffer;
318 frame->msg_type = GSM_TCHF_FRAME;
319 frame->callref = p_g_callref;
320 memcpy(frame->data, _frame, 33);
323 mncc_send(p_g_lcr_gsm, frame->msg_type, frame);
330 void gsm_trace_header(const char *interface_name, class Pgsm *port, unsigned int msg_type, int direction)
333 struct interface *interface = interface_first;
335 interface = getinterfacebyname(interface_name);
339 /* select message and primitive text */
340 SCPY(msgtext, mncc_name(msg_type));
344 switch(port->p_type) {
345 case PORT_TYPE_GSM_BS_OUT:
346 case PORT_TYPE_GSM_BS_IN:
347 SCAT(msgtext, " LCR<->BSC");
349 case PORT_TYPE_GSM_MS_OUT:
350 case PORT_TYPE_GSM_MS_IN:
351 SCAT(msgtext, " LCR<->MS");
355 SCAT(msgtext, " ----");
357 /* init trace with given values */
360 port?numberrize_callerinfo(port->p_callerinfo.id, port->p_callerinfo.ntype, options.national, options.international):NULL,
361 port?port->p_dialinginfo.id:NULL,
364 port?port->p_serial:0,
368 /* modify lchan to given payload type */
369 void Pgsm::modify_lchan(int media_type)
371 struct gsm_mncc *mode;
373 /* already modified to that payload type */
374 if (p_g_media_type == media_type)
377 p_g_media_type = media_type;
378 gsm_trace_header(p_interface_name, this, MNCC_LCHAN_MODIFY, DIRECTION_OUT);
379 mode = create_mncc(MNCC_LCHAN_MODIFY, p_g_callref);
380 switch (media_type) {
381 case MEDIA_TYPE_GSM_EFR:
382 add_trace("speech", "version", "EFR given");
383 mode->lchan_mode = 0x21; /* GSM V2 */
386 add_trace("speech", "version", "AMR given");
387 mode->lchan_mode = 0x41; /* GSM V3 */
390 add_trace("speech", "version", "Full/Half Rate given");
391 mode->lchan_mode = 0x01; /* GSM V1 */
393 mode->lchan_type = 0x02; /* FIXME: unused */
394 add_trace("mode", NULL, "0x%02x", mode->lchan_mode);
396 send_and_free_mncc(p_g_lcr_gsm, mode->msg_type, mode);
399 /* CALL PROCEEDING INDICATION (from network) */
400 void Pgsm::call_proc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
402 struct lcr_msg *message;
403 struct gsm_mncc *frame;
405 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
408 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROCEEDING);
409 message_put(message);
411 new_state(PORT_STATE_OUT_PROCEEDING);
413 if (p_g_earlyb && !p_g_tch_connected) { /* only if ... */
414 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
416 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
417 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
418 p_g_tch_connected = 1;
422 /* ALERTING INDICATION */
423 void Pgsm::alert_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
425 struct lcr_msg *message;
426 struct gsm_mncc *frame;
428 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
431 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_ALERTING);
432 message_put(message);
434 new_state(PORT_STATE_OUT_ALERTING);
436 if (p_g_earlyb && !p_g_tch_connected) { /* only if ... */
437 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
439 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
440 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
441 p_g_tch_connected = 1;
445 /* CONNECT INDICATION */
446 void Pgsm::setup_cnf(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
448 struct gsm_mncc *resp, *frame;
449 struct lcr_msg *message;
451 SCPY(p_connectinfo.id, mncc->connected.number);
452 SCPY(p_connectinfo.imsi, mncc->imsi);
453 p_connectinfo.present = INFO_PRESENT_ALLOWED;
454 p_connectinfo.screen = INFO_SCREEN_NETWORK;
455 p_connectinfo.ntype = INFO_NTYPE_UNKNOWN;
456 SCPY(p_connectinfo.interface, p_interface_name);
458 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
459 if (p_connectinfo.id[0])
460 add_trace("connect", "number", "%s", p_connectinfo.id);
461 else if (mncc->imsi[0])
462 SPRINT(p_connectinfo.id, "imsi-%s", p_connectinfo.imsi);
464 add_trace("connect", "imsi", "%s", p_connectinfo.imsi);
468 gsm_trace_header(p_interface_name, this, MNCC_SETUP_COMPL_REQ, DIRECTION_OUT);
469 resp = create_mncc(MNCC_SETUP_COMPL_REQ, p_g_callref);
471 send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
473 new_state(PORT_STATE_CONNECT);
475 if (!p_g_tch_connected) { /* only if ... */
476 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
478 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
479 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
480 p_g_tch_connected = 1;
483 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CONNECT);
484 memcpy(&message->param.connectinfo, &p_connectinfo, sizeof(struct connect_info));
486 /* if we have a bridge, but not yet modified, the phone accepts out requested payload.
487 * we force the first in list */
488 if (p_g_rtp_bridge) {
489 if (!p_g_media_type) {
490 /* modify to first given type */
491 modify_lchan(p_g_rtp_media_types[0]);
492 /* also set payload type */
493 p_g_payload_type = p_g_rtp_payload_types[0];
495 message->param.connectinfo.rtpinfo.media_types[0] = p_g_media_type;
496 message->param.connectinfo.rtpinfo.payload_types[0] = p_g_payload_type;
497 message->param.connectinfo.rtpinfo.payloads = 1;
500 if (p_g_rtp_bridge) {
501 struct gsm_mncc_rtp *rtp;
503 PDEBUG(DEBUG_GSM, "Request RTP peer info, before forwarding connect msg\n");
504 p_g_connect_pending = message;
505 rtp = (struct gsm_mncc_rtp *) create_mncc(MNCC_RTP_CREATE, p_g_callref);
506 send_and_free_mncc(p_g_lcr_gsm, rtp->msg_type, rtp);
508 message_put(message);
511 /* CONNECT ACK INDICATION */
512 void Pgsm::setup_compl_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
514 struct gsm_mncc *frame;
516 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
519 new_state(PORT_STATE_CONNECT);
521 if (!p_g_tch_connected) { /* only if ... */
522 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
524 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
525 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
526 p_g_tch_connected = 1;
530 /* DISCONNECT INDICATION */
531 void Pgsm::disc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
533 struct lcr_msg *message;
534 int cause = 16, location = 0;
535 struct gsm_mncc *resp;
537 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
538 if (mncc->fields & MNCC_F_CAUSE) {
539 location = mncc->cause.location;
540 cause = mncc->cause.value;
541 add_trace("cause", "coding", "%d", mncc->cause.coding);
542 add_trace("cause", "location", "%d", location);
543 add_trace("cause", "value", "%d", cause);
548 resp = create_mncc(MNCC_REL_REQ, p_g_callref);
549 gsm_trace_header(p_interface_name, this, MNCC_REL_REQ, DIRECTION_OUT);
551 resp->fields |= MNCC_F_CAUSE;
552 resp->cause.coding = 3;
553 resp->cause.location = 1;
554 resp->cause.value = cause;
555 add_trace("cause", "coding", "%d", resp->cause.coding);
556 add_trace("cause", "location", "%d", resp->cause.location);
557 add_trace("cause", "value", "%d", resp->cause.value);
560 send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
562 /* sending release to endpoint */
563 while(p_epointlist) {
564 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
565 message->param.disconnectinfo.cause = cause;
566 message->param.disconnectinfo.location = location;
567 message_put(message);
569 free_epointlist(p_epointlist);
571 new_state(PORT_STATE_RELEASE);
572 trigger_work(&p_g_delete);
575 /* CC_RELEASE INDICATION */
576 void Pgsm::rel_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
578 int location = 0, cause = 16;
579 struct lcr_msg *message;
581 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
582 if (mncc->fields & MNCC_F_CAUSE) {
583 location = mncc->cause.location;
584 cause = mncc->cause.value;
585 add_trace("cause", "coding", "%d", mncc->cause.coding);
586 add_trace("cause", "location", "%d", mncc->cause.location);
587 add_trace("cause", "value", "%d", mncc->cause.value);
591 /* sending release to endpoint */
592 while(p_epointlist) {
593 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
594 message->param.disconnectinfo.cause = cause;
595 message->param.disconnectinfo.location = location;
596 message_put(message);
598 free_epointlist(p_epointlist);
600 new_state(PORT_STATE_RELEASE);
601 trigger_work(&p_g_delete);
604 /* NOTIFY INDICATION */
605 void Pgsm::notify_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
607 struct lcr_msg *message;
609 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
610 add_trace("notify", NULL, "%d", mncc->notify);
613 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_NOTIFY);
614 message->param.notifyinfo.notify = mncc->notify;
615 message_put(message);
619 void Pgsm::message_notify(unsigned int epoint_id, int message_id, union parameter *param)
621 struct gsm_mncc *mncc;
624 // printf("if = %d\n", param->notifyinfo.notify);
625 if (param->notifyinfo.notify>INFO_NOTIFY_NONE) {
626 notify = param->notifyinfo.notify & 0x7f;
627 if (p_state!=PORT_STATE_CONNECT /*&& p_state!=PORT_STATE_IN_PROCEEDING*/ && p_state!=PORT_STATE_IN_ALERTING) {
628 /* queue notification */
629 if (p_g_notify_pending)
630 message_free(p_g_notify_pending);
631 p_g_notify_pending = message_create(ACTIVE_EPOINT(p_epointlist), p_serial, EPOINT_TO_PORT, message_id);
632 memcpy(&p_g_notify_pending->param, param, sizeof(union parameter));
634 /* sending notification */
635 gsm_trace_header(p_interface_name, this, MNCC_NOTIFY_REQ, DIRECTION_OUT);
636 add_trace("notify", NULL, "%d", notify);
638 mncc = create_mncc(MNCC_NOTIFY_REQ, p_g_callref);
639 mncc->notify = notify;
640 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
645 /* RTP create indication */
646 void Pgsm::rtp_create_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
648 struct gsm_mncc_rtp *rtp = (struct gsm_mncc_rtp *) mncc;
650 /* send queued setup, as we received remote RTP info */
651 if (p_g_setup_pending) {
652 struct lcr_msg *message;
654 message = p_g_setup_pending;
655 PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) forwarding setup\n", rtp->ip, rtp->port);
656 message->param.setup.rtpinfo.ip = rtp->ip;
657 message->param.setup.rtpinfo.port = rtp->port;
658 message_put(message);
659 p_g_setup_pending = NULL;
661 if (p_g_connect_pending) {
662 PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) connecting RTP... \n", rtp->ip, rtp->port);
663 send_mncc_rtp_connect();
667 /* RTP connect indication */
668 void Pgsm::rtp_connect_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
670 struct lcr_msg *message;
671 struct gsm_mncc_rtp *rtp = (struct gsm_mncc_rtp *) mncc;
673 if (p_g_connect_pending) {
674 message = p_g_connect_pending;
675 PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) forwarding connect\n", rtp->ip, rtp->port);
676 message->param.connectinfo.rtpinfo.ip = rtp->ip;
677 message->param.connectinfo.rtpinfo.port = rtp->port;
678 message_put(message);
679 p_g_connect_pending = NULL;
683 /* MESSAGE_PROGRESS */
684 void Pgsm::message_progress(unsigned int epoint_id, int message_id, union parameter *param)
686 if (param->progressinfo.progress == 8) {
687 PDEBUG(DEBUG_GSM, "Remote provides tones for us\n");
691 if (param->progressinfo.rtpinfo.port) {
692 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]);
694 /* modify channel to givne type, also sets media type */
695 modify_lchan(param->progressinfo.rtpinfo.media_types[0]);
698 p_g_rtp_ip_remote = param->progressinfo.rtpinfo.ip;
699 p_g_rtp_port_remote = param->progressinfo.rtpinfo.port;
700 /* p_g_media_type is already set by modify_lchan() */
701 p_g_payload_type = param->progressinfo.rtpinfo.payload_types[0];
702 send_mncc_rtp_connect();
706 /* MESSAGE_ALERTING */
707 void Pgsm::message_alerting(unsigned int epoint_id, int message_id, union parameter *param)
709 struct gsm_mncc *mncc;
712 gsm_trace_header(p_interface_name, this, MNCC_ALERT_REQ, DIRECTION_OUT);
713 mncc = create_mncc(MNCC_ALERT_REQ, p_g_callref);
715 mncc->fields |= MNCC_F_PROGRESS;
716 mncc->progress.coding = 3; /* GSM */
717 mncc->progress.location = 1;
718 mncc->progress.descr = 8;
719 add_trace("progress", "coding", "%d", mncc->progress.coding);
720 add_trace("progress", "location", "%d", mncc->progress.location);
721 add_trace("progress", "descr", "%d", mncc->progress.descr);
724 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
726 new_state(PORT_STATE_IN_ALERTING);
728 if (p_g_tones && !p_g_tch_connected) { /* only if ... */
729 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
731 mncc = create_mncc(MNCC_FRAME_RECV, p_g_callref);
732 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
733 p_g_tch_connected = 1;
737 /* MESSAGE_CONNECT */
738 void Pgsm::message_connect(unsigned int epoint_id, int message_id, union parameter *param)
740 struct gsm_mncc *mncc;
742 /* copy connected information */
743 memcpy(&p_connectinfo, ¶m->connectinfo, sizeof(p_connectinfo));
744 /* screen outgoing caller id */
745 do_screen(1, p_connectinfo.id, sizeof(p_connectinfo.id), &p_connectinfo.ntype, &p_connectinfo.present, p_interface_name);
748 mncc = create_mncc(MNCC_SETUP_RSP, p_g_callref);
749 gsm_trace_header(p_interface_name, this, MNCC_SETUP_RSP, DIRECTION_OUT);
750 /* caller information */
751 mncc->fields |= MNCC_F_CONNECTED;
752 mncc->connected.plan = 1;
753 switch (p_callerinfo.ntype) {
754 case INFO_NTYPE_UNKNOWN:
755 mncc->connected.type = 0x0;
757 case INFO_NTYPE_INTERNATIONAL:
758 mncc->connected.type = 0x1;
760 case INFO_NTYPE_NATIONAL:
761 mncc->connected.type = 0x2;
763 case INFO_NTYPE_SUBSCRIBER:
764 mncc->connected.type = 0x4;
766 default: /* INFO_NTYPE_NOTPRESENT */
767 mncc->fields &= ~MNCC_F_CONNECTED;
770 switch (p_callerinfo.screen) {
771 case INFO_SCREEN_USER:
772 mncc->connected.screen = 0;
774 default: /* INFO_SCREEN_NETWORK */
775 mncc->connected.screen = 3;
778 switch (p_callerinfo.present) {
779 case INFO_PRESENT_ALLOWED:
780 mncc->connected.present = 0;
782 case INFO_PRESENT_RESTRICTED:
783 mncc->connected.present = 1;
785 default: /* INFO_PRESENT_NOTAVAIL */
786 mncc->connected.present = 2;
789 if (mncc->fields & MNCC_F_CONNECTED) {
790 SCPY(mncc->connected.number, p_connectinfo.id);
791 add_trace("connected", "type", "%d", mncc->connected.type);
792 add_trace("connected", "plan", "%d", mncc->connected.plan);
793 add_trace("connected", "present", "%d", mncc->connected.present);
794 add_trace("connected", "screen", "%d", mncc->connected.screen);
795 add_trace("connected", "number", "%s", mncc->connected.number);
798 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
800 new_state(PORT_STATE_CONNECT_WAITING);
802 if (param->connectinfo.rtpinfo.port) {
803 PDEBUG(DEBUG_GSM, "CONNECT with RTP peer info, sent to BSC (%08x,%d)\n", param->connectinfo.rtpinfo.ip, param->connectinfo.rtpinfo.port);
805 /* modify channel to givne type, also sets media type */
806 modify_lchan(param->connectinfo.rtpinfo.media_types[0]);
809 p_g_rtp_ip_remote = param->connectinfo.rtpinfo.ip;
810 p_g_rtp_port_remote = param->connectinfo.rtpinfo.port;
811 /* p_g_media_type is already set by modify_lchan() */
812 p_g_payload_type = param->connectinfo.rtpinfo.payload_types[0];
813 send_mncc_rtp_connect();
817 /* MESSAGE_DISCONNECT */
818 void Pgsm::message_disconnect(unsigned int epoint_id, int message_id, union parameter *param)
820 struct gsm_mncc *mncc;
822 /* send disconnect */
823 mncc = create_mncc(MNCC_DISC_REQ, p_g_callref);
824 gsm_trace_header(p_interface_name, this, MNCC_DISC_REQ, DIRECTION_OUT);
826 mncc->fields |= MNCC_F_PROGRESS;
827 mncc->progress.coding = 3; /* GSM */
828 mncc->progress.location = 1;
829 mncc->progress.descr = 8;
830 add_trace("progress", "coding", "%d", mncc->progress.coding);
831 add_trace("progress", "location", "%d", mncc->progress.location);
832 add_trace("progress", "descr", "%d", mncc->progress.descr);
834 mncc->fields |= MNCC_F_CAUSE;
835 mncc->cause.coding = 3;
836 mncc->cause.location = param->disconnectinfo.location;
837 mncc->cause.value = param->disconnectinfo.cause;
838 add_trace("cause", "coding", "%d", mncc->cause.coding);
839 add_trace("cause", "location", "%d", mncc->cause.location);
840 add_trace("cause", "value", "%d", mncc->cause.value);
842 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
844 new_state(PORT_STATE_OUT_DISCONNECT);
846 if (p_g_tones && !p_g_tch_connected) { /* only if ... */
847 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
849 mncc = create_mncc(MNCC_FRAME_RECV, p_g_callref);
850 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
851 p_g_tch_connected = 1;
856 /* MESSAGE_RELEASE */
857 void Pgsm::message_release(unsigned int epoint_id, int message_id, union parameter *param)
859 struct gsm_mncc *mncc;
862 mncc = create_mncc(MNCC_REL_REQ, p_g_callref);
863 gsm_trace_header(p_interface_name, this, MNCC_REL_REQ, DIRECTION_OUT);
864 mncc->fields |= MNCC_F_CAUSE;
865 mncc->cause.coding = 3;
866 mncc->cause.location = param->disconnectinfo.location;
867 mncc->cause.value = param->disconnectinfo.cause;
868 add_trace("cause", "coding", "%d", mncc->cause.coding);
869 add_trace("cause", "location", "%d", mncc->cause.location);
870 add_trace("cause", "value", "%d", mncc->cause.value);
872 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
874 new_state(PORT_STATE_RELEASE);
875 trigger_work(&p_g_delete);
880 * endpoint sends messages to the port
882 int Pgsm::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
886 if (Port::message_epoint(epoint_id, message_id, param))
890 case MESSAGE_NOTIFY: /* display and notifications */
892 message_notify(epoint_id, message_id, param);
895 // case MESSAGE_FACILITY: /* facility message */
896 // message_facility(epoint_id, message_id, param);
899 case MESSAGE_PROCEEDING: /* message not handles */
903 case MESSAGE_PROGRESS:
905 message_progress(epoint_id, message_id, param);
908 case MESSAGE_ALERTING: /* call of endpoint is ringing */
910 if (p_state!=PORT_STATE_IN_PROCEEDING)
912 message_alerting(epoint_id, message_id, param);
913 if (p_g_notify_pending) {
914 /* send pending notify message during connect */
915 message_notify(ACTIVE_EPOINT(p_epointlist), p_g_notify_pending->type, &p_g_notify_pending->param);
916 message_free(p_g_notify_pending);
917 p_g_notify_pending = NULL;
921 case MESSAGE_CONNECT: /* call of endpoint is connected */
923 if (p_state!=PORT_STATE_IN_PROCEEDING
924 && p_state!=PORT_STATE_IN_ALERTING)
926 message_connect(epoint_id, message_id, param);
927 if (p_g_notify_pending) {
928 /* send pending notify message during connect */
929 message_notify(ACTIVE_EPOINT(p_epointlist), p_g_notify_pending->type, &p_g_notify_pending->param);
930 message_free(p_g_notify_pending);
931 p_g_notify_pending = NULL;
935 case MESSAGE_DISCONNECT: /* call has been disconnected */
937 if (p_state!=PORT_STATE_IN_PROCEEDING
938 && p_state!=PORT_STATE_IN_ALERTING
939 && p_state!=PORT_STATE_OUT_SETUP
940 && p_state!=PORT_STATE_OUT_OVERLAP
941 && p_state!=PORT_STATE_OUT_PROCEEDING
942 && p_state!=PORT_STATE_OUT_ALERTING
943 && p_state!=PORT_STATE_CONNECT
944 && p_state!=PORT_STATE_CONNECT_WAITING)
946 message_disconnect(epoint_id, message_id, param);
949 case MESSAGE_RELEASE: /* release isdn port */
951 if (p_state==PORT_STATE_RELEASE)
953 message_release(epoint_id, message_id, param);
961 /* deletes only if l3id is release, otherwhise it will be triggered then */
962 static int delete_event(struct lcr_work *work, void *instance, int index)
964 class Pgsm *gsmport = (class Pgsm *)instance;
988 static int mncc_q_enqueue(struct lcr_gsm *lcr_gsm, struct gsm_mncc *mncc, unsigned int len)
990 struct mncc_q_entry *qe;
992 qe = (struct mncc_q_entry *) MALLOC(sizeof(*qe)+sizeof(*mncc)+len);
998 memcpy(qe->data, mncc, len);
1000 /* in case of empty list ... */
1001 if (!lcr_gsm->mncc_q_hd && !lcr_gsm->mncc_q_tail) {
1002 /* the list head and tail both point to the new qe */
1003 lcr_gsm->mncc_q_hd = lcr_gsm->mncc_q_tail = qe;
1005 /* append to tail of list */
1006 lcr_gsm->mncc_q_tail->next = qe;
1007 lcr_gsm->mncc_q_tail = qe;
1010 lcr_gsm->mncc_lfd.when |= LCR_FD_WRITE;
1015 static struct mncc_q_entry *mncc_q_dequeue(struct lcr_gsm *lcr_gsm)
1017 struct mncc_q_entry *qe = lcr_gsm->mncc_q_hd;
1021 /* dequeue the successfully sent message */
1022 lcr_gsm->mncc_q_hd = qe->next;
1025 if (qe == lcr_gsm->mncc_q_tail)
1026 lcr_gsm->mncc_q_tail = NULL;
1031 /* routine called by LCR code if it wants to send a message to OpenBSC */
1032 static int mncc_send(struct lcr_gsm *lcr_gsm, int msg_type, void *data)
1036 /* FIXME: the caller should provide this */
1038 case GSM_TCHF_FRAME:
1039 len = sizeof(struct gsm_data_frame) + 33;
1042 len = sizeof(struct gsm_mncc);
1046 return mncc_q_enqueue(lcr_gsm, (struct gsm_mncc *)data, len);
1049 /* close MNCC socket */
1050 static int mncc_fd_close(struct lcr_gsm *lcr_gsm, struct lcr_fd *lfd)
1053 class Pgsm *pgsm = NULL;
1054 struct lcr_msg *message;
1056 PERROR("Lost MNCC socket, retrying in %u seconds\n", SOCKET_RETRY_TIMER);
1061 /* free all the calls that were running through the MNCC interface */
1064 if ((port->p_type & PORT_CLASS_mISDN_MASK) == PORT_CLASS_GSM) {
1065 pgsm = (class Pgsm *)port;
1066 if (pgsm->p_g_lcr_gsm == lcr_gsm) {
1067 message = message_create(pgsm->p_serial, ACTIVE_EPOINT(pgsm->p_epointlist), PORT_TO_EPOINT, MESSAGE_RELEASE);
1068 message->param.disconnectinfo.cause = 27; // temp. unavail.
1069 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
1070 message_put(message);
1071 pgsm->new_state(PORT_STATE_RELEASE);
1072 trigger_work(&pgsm->p_g_delete);
1078 /* flush the queue */
1079 while (mncc_q_dequeue(lcr_gsm))
1082 /* start the re-connect timer */
1083 schedule_timer(&lcr_gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
1088 /* write to OpenBSC via MNCC socket */
1089 static int mncc_fd_write(struct lcr_fd *lfd, void *inst, int idx)
1091 struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
1092 struct mncc_q_entry *qe, *qe2;
1096 qe = lcr_gsm->mncc_q_hd;
1098 lfd->when &= ~LCR_FD_WRITE;
1101 rc = write(lfd->fd, qe->data, qe->len);
1103 return mncc_fd_close(lcr_gsm, lfd);
1106 if (rc < (int)qe->len)
1108 /* dequeue the successfully sent message */
1109 qe2 = mncc_q_dequeue(lcr_gsm);
1116 /* read from OpenBSC via MNCC socket */
1117 static int mncc_fd_read(struct lcr_fd *lfd, void *inst, int idx)
1119 struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
1121 static char buf[sizeof(struct gsm_mncc)+1024];
1122 struct gsm_mncc *mncc_prim = (struct gsm_mncc *) buf;
1124 memset(buf, 0, sizeof(buf));
1125 rc = recv(lfd->fd, buf, sizeof(buf), 0);
1127 return mncc_fd_close(lcr_gsm, lfd);
1131 /* Hand the MNCC message into LCR */
1132 switch (lcr_gsm->type) {
1134 case LCR_GSM_TYPE_NETWORK:
1135 return message_bsc(lcr_gsm, mncc_prim->msg_type, mncc_prim);
1138 case LCR_GSM_TYPE_MS:
1139 return message_ms(lcr_gsm, mncc_prim->msg_type, mncc_prim);
1146 /* file descriptor callback if we can read or write form MNCC socket */
1147 static int mncc_fd_cb(struct lcr_fd *lfd, unsigned int what, void *inst, int idx)
1151 if (what & LCR_FD_READ)
1152 rc = mncc_fd_read(lfd, inst, idx);
1156 if (what & LCR_FD_WRITE)
1157 rc = mncc_fd_write(lfd, inst, idx);
1162 int mncc_socket_retry_cb(struct lcr_timer *timer, void *inst, int index)
1164 struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
1167 lcr_gsm->mncc_lfd.fd = -1;
1169 fd = socket(PF_UNIX, SOCK_SEQPACKET, 0);
1171 PERROR("Cannot create SEQPACKET socket, giving up!\n");
1175 rc = connect(fd, (struct sockaddr *) &lcr_gsm->sun,
1176 sizeof(lcr_gsm->sun));
1178 PERROR("Could not connect to MNCC socket %s, "
1179 "retrying in %u seconds\n", lcr_gsm->sun.sun_path,
1180 SOCKET_RETRY_TIMER);
1182 schedule_timer(&lcr_gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
1184 PDEBUG(DEBUG_GSM, "Connected to MNCC socket %s!\n", lcr_gsm->sun.sun_path);
1185 lcr_gsm->mncc_lfd.fd = fd;
1186 register_fd(&lcr_gsm->mncc_lfd, LCR_FD_READ, &mncc_fd_cb, lcr_gsm, 0);