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 bridge_rx(data, 160);
262 bridge_tx(data, 160);
265 /* send traffic to gsm */
266 int Pgsm::bridge_rx(unsigned char *data, int len)
271 return audio_send(data, len);
274 int Pgsm::audio_send(unsigned char *data, int len)
276 unsigned char frame[33];
278 /* encoder init failed */
282 /* (currently) not connected, so don't flood tch! */
283 if (!p_g_tch_connected)
286 /* write to rx buffer */
288 p_g_rxdata[p_g_rxpos++] = audio_law_to_s32[*data++];
289 if (p_g_rxpos == 160) {
293 gsm_audio_encode(p_g_encoder, p_g_rxdata, frame);
301 void Pgsm::frame_send(void *_frame)
303 unsigned char buffer[sizeof(struct gsm_data_frame) + 33];
304 struct gsm_data_frame *frame = (struct gsm_data_frame *)buffer;
306 frame->msg_type = GSM_TCHF_FRAME;
307 frame->callref = p_g_callref;
308 memcpy(frame->data, _frame, 33);
311 mncc_send(p_g_lcr_gsm, frame->msg_type, frame);
318 void gsm_trace_header(const char *interface_name, class Pgsm *port, unsigned int msg_type, int direction)
321 struct interface *interface = interface_first;
323 interface = getinterfacebyname(interface_name);
327 /* select message and primitive text */
328 SCPY(msgtext, mncc_name(msg_type));
332 switch(port->p_type) {
333 case PORT_TYPE_GSM_BS_OUT:
334 case PORT_TYPE_GSM_BS_IN:
335 SCAT(msgtext, " LCR<->BSC");
337 case PORT_TYPE_GSM_MS_OUT:
338 case PORT_TYPE_GSM_MS_IN:
339 SCAT(msgtext, " LCR<->MS");
343 SCAT(msgtext, " ----");
345 /* init trace with given values */
348 port?numberrize_callerinfo(port->p_callerinfo.id, port->p_callerinfo.ntype, options.national, options.international):NULL,
349 port?port->p_dialinginfo.id:NULL,
352 port?port->p_serial:0,
356 /* modify lchan to given payload type */
357 void Pgsm::modify_lchan(int media_type)
359 struct gsm_mncc *mode;
361 /* already modified to that payload type */
362 if (p_g_media_type == media_type)
365 p_g_media_type = media_type;
366 gsm_trace_header(p_interface_name, this, MNCC_LCHAN_MODIFY, DIRECTION_OUT);
367 mode = create_mncc(MNCC_LCHAN_MODIFY, p_g_callref);
368 switch (media_type) {
369 case MEDIA_TYPE_GSM_EFR:
370 add_trace("speech", "version", "EFR given");
371 mode->lchan_mode = 0x21; /* GSM V2 */
374 add_trace("speech", "version", "AMR given");
375 mode->lchan_mode = 0x41; /* GSM V3 */
378 add_trace("speech", "version", "Full/Half Rate given");
379 mode->lchan_mode = 0x01; /* GSM V1 */
381 mode->lchan_type = 0x02; /* FIXME: unused */
382 add_trace("mode", NULL, "0x%02x", mode->lchan_mode);
384 send_and_free_mncc(p_g_lcr_gsm, mode->msg_type, mode);
387 /* CALL PROCEEDING INDICATION (from network) */
388 void Pgsm::call_proc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
390 struct lcr_msg *message;
391 struct gsm_mncc *frame;
393 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
396 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROCEEDING);
397 message_put(message);
399 new_state(PORT_STATE_OUT_PROCEEDING);
401 if (p_g_earlyb && !p_g_tch_connected) { /* only if ... */
402 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
404 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
405 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
406 p_g_tch_connected = 1;
410 /* ALERTING INDICATION */
411 void Pgsm::alert_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
413 struct lcr_msg *message;
414 struct gsm_mncc *frame;
416 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
419 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_ALERTING);
420 message_put(message);
422 new_state(PORT_STATE_OUT_ALERTING);
424 if (p_g_earlyb && !p_g_tch_connected) { /* only if ... */
425 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
427 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
428 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
429 p_g_tch_connected = 1;
433 /* CONNECT INDICATION */
434 void Pgsm::setup_cnf(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
436 struct gsm_mncc *resp, *frame;
437 struct lcr_msg *message;
439 SCPY(p_connectinfo.id, mncc->connected.number);
440 SCPY(p_connectinfo.imsi, mncc->imsi);
441 p_connectinfo.present = INFO_PRESENT_ALLOWED;
442 p_connectinfo.screen = INFO_SCREEN_NETWORK;
443 p_connectinfo.ntype = INFO_NTYPE_UNKNOWN;
444 SCPY(p_connectinfo.interface, p_interface_name);
446 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
447 if (p_connectinfo.id[0])
448 add_trace("connect", "number", "%s", p_connectinfo.id);
449 else if (mncc->imsi[0])
450 SPRINT(p_connectinfo.id, "imsi-%s", p_connectinfo.imsi);
452 add_trace("connect", "imsi", "%s", p_connectinfo.imsi);
456 gsm_trace_header(p_interface_name, this, MNCC_SETUP_COMPL_REQ, DIRECTION_OUT);
457 resp = create_mncc(MNCC_SETUP_COMPL_REQ, p_g_callref);
459 send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
461 new_state(PORT_STATE_CONNECT);
463 if (!p_g_tch_connected) { /* only if ... */
464 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
466 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
467 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
468 p_g_tch_connected = 1;
471 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CONNECT);
472 memcpy(&message->param.connectinfo, &p_connectinfo, sizeof(struct connect_info));
474 /* if we have a bridge, but not yet modified, the phone accepts out requested payload.
475 * we force the first in list */
476 if (p_g_rtp_bridge) {
477 if (!p_g_media_type) {
478 /* modify to first given type */
479 modify_lchan(p_g_rtp_media_types[0]);
480 /* also set payload type */
481 p_g_payload_type = p_g_rtp_payload_types[0];
483 message->param.connectinfo.rtpinfo.media_types[0] = p_g_media_type;
484 message->param.connectinfo.rtpinfo.payload_types[0] = p_g_payload_type;
485 message->param.connectinfo.rtpinfo.payloads = 1;
488 if (p_g_rtp_bridge) {
489 struct gsm_mncc_rtp *rtp;
491 PDEBUG(DEBUG_GSM, "Request RTP peer info, before forwarding connect msg\n");
492 p_g_connect_pending = message;
493 rtp = (struct gsm_mncc_rtp *) create_mncc(MNCC_RTP_CREATE, p_g_callref);
494 send_and_free_mncc(p_g_lcr_gsm, rtp->msg_type, rtp);
496 message_put(message);
499 /* CONNECT ACK INDICATION */
500 void Pgsm::setup_compl_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
502 struct gsm_mncc *frame;
504 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
507 new_state(PORT_STATE_CONNECT);
509 if (!p_g_tch_connected) { /* only if ... */
510 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
512 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
513 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
514 p_g_tch_connected = 1;
518 /* DISCONNECT INDICATION */
519 void Pgsm::disc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
521 struct lcr_msg *message;
522 int cause = 16, location = 0;
523 struct gsm_mncc *resp;
525 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
526 if (mncc->fields & MNCC_F_CAUSE) {
527 location = mncc->cause.location;
528 cause = mncc->cause.value;
529 add_trace("cause", "coding", "%d", mncc->cause.coding);
530 add_trace("cause", "location", "%d", location);
531 add_trace("cause", "value", "%d", cause);
536 resp = create_mncc(MNCC_REL_REQ, p_g_callref);
537 gsm_trace_header(p_interface_name, this, MNCC_REL_REQ, DIRECTION_OUT);
539 resp->fields |= MNCC_F_CAUSE;
540 resp->cause.coding = 3;
541 resp->cause.location = 1;
542 resp->cause.value = cause;
543 add_trace("cause", "coding", "%d", resp->cause.coding);
544 add_trace("cause", "location", "%d", resp->cause.location);
545 add_trace("cause", "value", "%d", resp->cause.value);
548 send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
550 /* sending release to endpoint */
551 while(p_epointlist) {
552 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
553 message->param.disconnectinfo.cause = cause;
554 message->param.disconnectinfo.location = location;
555 message_put(message);
557 free_epointlist(p_epointlist);
559 new_state(PORT_STATE_RELEASE);
560 trigger_work(&p_g_delete);
563 /* CC_RELEASE INDICATION */
564 void Pgsm::rel_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
566 int location = 0, cause = 16;
567 struct lcr_msg *message;
569 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
570 if (mncc->fields & MNCC_F_CAUSE) {
571 location = mncc->cause.location;
572 cause = mncc->cause.value;
573 add_trace("cause", "coding", "%d", mncc->cause.coding);
574 add_trace("cause", "location", "%d", mncc->cause.location);
575 add_trace("cause", "value", "%d", mncc->cause.value);
579 /* sending release to endpoint */
580 while(p_epointlist) {
581 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
582 message->param.disconnectinfo.cause = cause;
583 message->param.disconnectinfo.location = location;
584 message_put(message);
586 free_epointlist(p_epointlist);
588 new_state(PORT_STATE_RELEASE);
589 trigger_work(&p_g_delete);
592 /* NOTIFY INDICATION */
593 void Pgsm::notify_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
595 struct lcr_msg *message;
597 gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
598 add_trace("notify", NULL, "%d", mncc->notify);
601 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_NOTIFY);
602 message->param.notifyinfo.notify = mncc->notify;
603 message_put(message);
607 void Pgsm::message_notify(unsigned int epoint_id, int message_id, union parameter *param)
609 struct gsm_mncc *mncc;
612 // printf("if = %d\n", param->notifyinfo.notify);
613 if (param->notifyinfo.notify>INFO_NOTIFY_NONE) {
614 notify = param->notifyinfo.notify & 0x7f;
615 if (p_state!=PORT_STATE_CONNECT /*&& p_state!=PORT_STATE_IN_PROCEEDING*/ && p_state!=PORT_STATE_IN_ALERTING) {
616 /* queue notification */
617 if (p_g_notify_pending)
618 message_free(p_g_notify_pending);
619 p_g_notify_pending = message_create(ACTIVE_EPOINT(p_epointlist), p_serial, EPOINT_TO_PORT, message_id);
620 memcpy(&p_g_notify_pending->param, param, sizeof(union parameter));
622 /* sending notification */
623 gsm_trace_header(p_interface_name, this, MNCC_NOTIFY_REQ, DIRECTION_OUT);
624 add_trace("notify", NULL, "%d", notify);
626 mncc = create_mncc(MNCC_NOTIFY_REQ, p_g_callref);
627 mncc->notify = notify;
628 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
633 /* RTP create indication */
634 void Pgsm::rtp_create_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
636 struct gsm_mncc_rtp *rtp = (struct gsm_mncc_rtp *) mncc;
638 /* send queued setup, as we received remote RTP info */
639 if (p_g_setup_pending) {
640 struct lcr_msg *message;
642 message = p_g_setup_pending;
643 PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) forwarding setup\n", rtp->ip, rtp->port);
644 message->param.setup.rtpinfo.ip = rtp->ip;
645 message->param.setup.rtpinfo.port = rtp->port;
646 message_put(message);
647 p_g_setup_pending = NULL;
649 if (p_g_connect_pending) {
650 PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) connecting RTP... \n", rtp->ip, rtp->port);
651 send_mncc_rtp_connect();
655 /* RTP connect indication */
656 void Pgsm::rtp_connect_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
658 struct lcr_msg *message;
659 struct gsm_mncc_rtp *rtp = (struct gsm_mncc_rtp *) mncc;
661 if (p_g_connect_pending) {
662 message = p_g_connect_pending;
663 PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) forwarding connect\n", rtp->ip, rtp->port);
664 message->param.connectinfo.rtpinfo.ip = rtp->ip;
665 message->param.connectinfo.rtpinfo.port = rtp->port;
666 message_put(message);
667 p_g_connect_pending = NULL;
671 /* MESSAGE_PROGRESS */
672 void Pgsm::message_progress(unsigned int epoint_id, int message_id, union parameter *param)
674 if (param->progressinfo.progress == 8) {
675 PDEBUG(DEBUG_GSM, "Remote provides tones for us\n");
679 if (param->progressinfo.rtpinfo.port) {
680 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]);
682 /* modify channel to givne type, also sets media type */
683 modify_lchan(param->progressinfo.rtpinfo.media_types[0]);
686 p_g_rtp_ip_remote = param->progressinfo.rtpinfo.ip;
687 p_g_rtp_port_remote = param->progressinfo.rtpinfo.port;
688 /* p_g_media_type is already set by modify_lchan() */
689 p_g_payload_type = param->progressinfo.rtpinfo.payload_types[0];
690 send_mncc_rtp_connect();
694 /* MESSAGE_ALERTING */
695 void Pgsm::message_alerting(unsigned int epoint_id, int message_id, union parameter *param)
697 struct gsm_mncc *mncc;
700 gsm_trace_header(p_interface_name, this, MNCC_ALERT_REQ, DIRECTION_OUT);
701 mncc = create_mncc(MNCC_ALERT_REQ, p_g_callref);
703 mncc->fields |= MNCC_F_PROGRESS;
704 mncc->progress.coding = 3; /* GSM */
705 mncc->progress.location = 1;
706 mncc->progress.descr = 8;
707 add_trace("progress", "coding", "%d", mncc->progress.coding);
708 add_trace("progress", "location", "%d", mncc->progress.location);
709 add_trace("progress", "descr", "%d", mncc->progress.descr);
712 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
714 new_state(PORT_STATE_IN_ALERTING);
716 if (p_g_tones && !p_g_tch_connected) { /* only if ... */
717 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
719 mncc = create_mncc(MNCC_FRAME_RECV, p_g_callref);
720 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
721 p_g_tch_connected = 1;
725 /* MESSAGE_CONNECT */
726 void Pgsm::message_connect(unsigned int epoint_id, int message_id, union parameter *param)
728 struct gsm_mncc *mncc;
730 /* copy connected information */
731 memcpy(&p_connectinfo, ¶m->connectinfo, sizeof(p_connectinfo));
732 /* screen outgoing caller id */
733 do_screen(1, p_connectinfo.id, sizeof(p_connectinfo.id), &p_connectinfo.ntype, &p_connectinfo.present, p_interface_name);
736 mncc = create_mncc(MNCC_SETUP_RSP, p_g_callref);
737 gsm_trace_header(p_interface_name, this, MNCC_SETUP_RSP, DIRECTION_OUT);
738 /* caller information */
739 mncc->fields |= MNCC_F_CONNECTED;
740 mncc->connected.plan = 1;
741 switch (p_callerinfo.ntype) {
742 case INFO_NTYPE_UNKNOWN:
743 mncc->connected.type = 0x0;
745 case INFO_NTYPE_INTERNATIONAL:
746 mncc->connected.type = 0x1;
748 case INFO_NTYPE_NATIONAL:
749 mncc->connected.type = 0x2;
751 case INFO_NTYPE_SUBSCRIBER:
752 mncc->connected.type = 0x4;
754 default: /* INFO_NTYPE_NOTPRESENT */
755 mncc->fields &= ~MNCC_F_CONNECTED;
758 switch (p_callerinfo.screen) {
759 case INFO_SCREEN_USER:
760 mncc->connected.screen = 0;
762 default: /* INFO_SCREEN_NETWORK */
763 mncc->connected.screen = 3;
766 switch (p_callerinfo.present) {
767 case INFO_PRESENT_ALLOWED:
768 mncc->connected.present = 0;
770 case INFO_PRESENT_RESTRICTED:
771 mncc->connected.present = 1;
773 default: /* INFO_PRESENT_NOTAVAIL */
774 mncc->connected.present = 2;
777 if (mncc->fields & MNCC_F_CONNECTED) {
778 SCPY(mncc->connected.number, p_connectinfo.id);
779 add_trace("connected", "type", "%d", mncc->connected.type);
780 add_trace("connected", "plan", "%d", mncc->connected.plan);
781 add_trace("connected", "present", "%d", mncc->connected.present);
782 add_trace("connected", "screen", "%d", mncc->connected.screen);
783 add_trace("connected", "number", "%s", mncc->connected.number);
786 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
788 new_state(PORT_STATE_CONNECT_WAITING);
790 if (param->connectinfo.rtpinfo.port) {
791 PDEBUG(DEBUG_GSM, "CONNECT with RTP peer info, sent to BSC (%08x,%d)\n", param->connectinfo.rtpinfo.ip, param->connectinfo.rtpinfo.port);
793 /* modify channel to givne type, also sets media type */
794 modify_lchan(param->connectinfo.rtpinfo.media_types[0]);
797 p_g_rtp_ip_remote = param->connectinfo.rtpinfo.ip;
798 p_g_rtp_port_remote = param->connectinfo.rtpinfo.port;
799 /* p_g_media_type is already set by modify_lchan() */
800 p_g_payload_type = param->connectinfo.rtpinfo.payload_types[0];
801 send_mncc_rtp_connect();
805 /* MESSAGE_DISCONNECT */
806 void Pgsm::message_disconnect(unsigned int epoint_id, int message_id, union parameter *param)
808 struct gsm_mncc *mncc;
810 /* send disconnect */
811 mncc = create_mncc(MNCC_DISC_REQ, p_g_callref);
812 gsm_trace_header(p_interface_name, this, MNCC_DISC_REQ, DIRECTION_OUT);
814 mncc->fields |= MNCC_F_PROGRESS;
815 mncc->progress.coding = 3; /* GSM */
816 mncc->progress.location = 1;
817 mncc->progress.descr = 8;
818 add_trace("progress", "coding", "%d", mncc->progress.coding);
819 add_trace("progress", "location", "%d", mncc->progress.location);
820 add_trace("progress", "descr", "%d", mncc->progress.descr);
822 mncc->fields |= MNCC_F_CAUSE;
823 mncc->cause.coding = 3;
824 mncc->cause.location = param->disconnectinfo.location;
825 mncc->cause.value = param->disconnectinfo.cause;
826 add_trace("cause", "coding", "%d", mncc->cause.coding);
827 add_trace("cause", "location", "%d", mncc->cause.location);
828 add_trace("cause", "value", "%d", mncc->cause.value);
830 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
832 new_state(PORT_STATE_OUT_DISCONNECT);
834 if (p_g_tones && !p_g_tch_connected) { /* only if ... */
835 gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
837 mncc = create_mncc(MNCC_FRAME_RECV, p_g_callref);
838 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
839 p_g_tch_connected = 1;
844 /* MESSAGE_RELEASE */
845 void Pgsm::message_release(unsigned int epoint_id, int message_id, union parameter *param)
847 struct gsm_mncc *mncc;
850 mncc = create_mncc(MNCC_REL_REQ, p_g_callref);
851 gsm_trace_header(p_interface_name, this, MNCC_REL_REQ, DIRECTION_OUT);
852 mncc->fields |= MNCC_F_CAUSE;
853 mncc->cause.coding = 3;
854 mncc->cause.location = param->disconnectinfo.location;
855 mncc->cause.value = param->disconnectinfo.cause;
856 add_trace("cause", "coding", "%d", mncc->cause.coding);
857 add_trace("cause", "location", "%d", mncc->cause.location);
858 add_trace("cause", "value", "%d", mncc->cause.value);
860 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
862 new_state(PORT_STATE_RELEASE);
863 trigger_work(&p_g_delete);
868 * endpoint sends messages to the port
870 int Pgsm::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
874 if (Port::message_epoint(epoint_id, message_id, param))
878 case MESSAGE_NOTIFY: /* display and notifications */
880 message_notify(epoint_id, message_id, param);
883 // case MESSAGE_FACILITY: /* facility message */
884 // message_facility(epoint_id, message_id, param);
887 case MESSAGE_PROCEEDING: /* message not handles */
891 case MESSAGE_PROGRESS:
893 message_progress(epoint_id, message_id, param);
896 case MESSAGE_ALERTING: /* call of endpoint is ringing */
898 if (p_state!=PORT_STATE_IN_PROCEEDING)
900 message_alerting(epoint_id, message_id, param);
901 if (p_g_notify_pending) {
902 /* send pending notify message during connect */
903 message_notify(ACTIVE_EPOINT(p_epointlist), p_g_notify_pending->type, &p_g_notify_pending->param);
904 message_free(p_g_notify_pending);
905 p_g_notify_pending = NULL;
909 case MESSAGE_CONNECT: /* call of endpoint is connected */
911 if (p_state!=PORT_STATE_IN_PROCEEDING
912 && p_state!=PORT_STATE_IN_ALERTING)
914 message_connect(epoint_id, message_id, param);
915 if (p_g_notify_pending) {
916 /* send pending notify message during connect */
917 message_notify(ACTIVE_EPOINT(p_epointlist), p_g_notify_pending->type, &p_g_notify_pending->param);
918 message_free(p_g_notify_pending);
919 p_g_notify_pending = NULL;
923 case MESSAGE_DISCONNECT: /* call has been disconnected */
925 if (p_state!=PORT_STATE_IN_PROCEEDING
926 && p_state!=PORT_STATE_IN_ALERTING
927 && p_state!=PORT_STATE_OUT_SETUP
928 && p_state!=PORT_STATE_OUT_OVERLAP
929 && p_state!=PORT_STATE_OUT_PROCEEDING
930 && p_state!=PORT_STATE_OUT_ALERTING
931 && p_state!=PORT_STATE_CONNECT
932 && p_state!=PORT_STATE_CONNECT_WAITING)
934 message_disconnect(epoint_id, message_id, param);
937 case MESSAGE_RELEASE: /* release isdn port */
939 if (p_state==PORT_STATE_RELEASE)
941 message_release(epoint_id, message_id, param);
949 /* deletes only if l3id is release, otherwhise it will be triggered then */
950 static int delete_event(struct lcr_work *work, void *instance, int index)
952 class Pgsm *gsmport = (class Pgsm *)instance;
976 static int mncc_q_enqueue(struct lcr_gsm *lcr_gsm, struct gsm_mncc *mncc, unsigned int len)
978 struct mncc_q_entry *qe;
980 qe = (struct mncc_q_entry *) MALLOC(sizeof(*qe)+sizeof(*mncc)+len);
986 memcpy(qe->data, mncc, len);
988 /* in case of empty list ... */
989 if (!lcr_gsm->mncc_q_hd && !lcr_gsm->mncc_q_tail) {
990 /* the list head and tail both point to the new qe */
991 lcr_gsm->mncc_q_hd = lcr_gsm->mncc_q_tail = qe;
993 /* append to tail of list */
994 lcr_gsm->mncc_q_tail->next = qe;
995 lcr_gsm->mncc_q_tail = qe;
998 lcr_gsm->mncc_lfd.when |= LCR_FD_WRITE;
1003 static struct mncc_q_entry *mncc_q_dequeue(struct lcr_gsm *lcr_gsm)
1005 struct mncc_q_entry *qe = lcr_gsm->mncc_q_hd;
1009 /* dequeue the successfully sent message */
1010 lcr_gsm->mncc_q_hd = qe->next;
1013 if (qe == lcr_gsm->mncc_q_tail)
1014 lcr_gsm->mncc_q_tail = NULL;
1019 /* routine called by LCR code if it wants to send a message to OpenBSC */
1020 static int mncc_send(struct lcr_gsm *lcr_gsm, int msg_type, void *data)
1024 /* FIXME: the caller should provide this */
1026 case GSM_TCHF_FRAME:
1027 len = sizeof(struct gsm_data_frame) + 33;
1030 len = sizeof(struct gsm_mncc);
1034 return mncc_q_enqueue(lcr_gsm, (struct gsm_mncc *)data, len);
1037 /* close MNCC socket */
1038 static int mncc_fd_close(struct lcr_gsm *lcr_gsm, struct lcr_fd *lfd)
1041 class Pgsm *pgsm = NULL;
1042 struct lcr_msg *message;
1044 PERROR("Lost MNCC socket, retrying in %u seconds\n", SOCKET_RETRY_TIMER);
1049 /* free all the calls that were running through the MNCC interface */
1052 if ((port->p_type & PORT_CLASS_mISDN_MASK) == PORT_CLASS_GSM) {
1053 pgsm = (class Pgsm *)port;
1054 if (pgsm->p_g_lcr_gsm == lcr_gsm) {
1055 message = message_create(pgsm->p_serial, ACTIVE_EPOINT(pgsm->p_epointlist), PORT_TO_EPOINT, MESSAGE_RELEASE);
1056 message->param.disconnectinfo.cause = 27; // temp. unavail.
1057 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
1058 message_put(message);
1059 pgsm->new_state(PORT_STATE_RELEASE);
1060 trigger_work(&pgsm->p_g_delete);
1066 /* flush the queue */
1067 while (mncc_q_dequeue(lcr_gsm))
1070 /* start the re-connect timer */
1071 schedule_timer(&lcr_gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
1076 /* write to OpenBSC via MNCC socket */
1077 static int mncc_fd_write(struct lcr_fd *lfd, void *inst, int idx)
1079 struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
1080 struct mncc_q_entry *qe, *qe2;
1084 qe = lcr_gsm->mncc_q_hd;
1086 lfd->when &= ~LCR_FD_WRITE;
1089 rc = write(lfd->fd, qe->data, qe->len);
1091 return mncc_fd_close(lcr_gsm, lfd);
1094 if (rc < (int)qe->len)
1096 /* dequeue the successfully sent message */
1097 qe2 = mncc_q_dequeue(lcr_gsm);
1104 /* read from OpenBSC via MNCC socket */
1105 static int mncc_fd_read(struct lcr_fd *lfd, void *inst, int idx)
1107 struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
1109 static char buf[sizeof(struct gsm_mncc)+1024];
1110 struct gsm_mncc *mncc_prim = (struct gsm_mncc *) buf;
1112 memset(buf, 0, sizeof(buf));
1113 rc = recv(lfd->fd, buf, sizeof(buf), 0);
1115 return mncc_fd_close(lcr_gsm, lfd);
1119 /* Hand the MNCC message into LCR */
1120 switch (lcr_gsm->type) {
1122 case LCR_GSM_TYPE_NETWORK:
1123 return message_bsc(lcr_gsm, mncc_prim->msg_type, mncc_prim);
1126 case LCR_GSM_TYPE_MS:
1127 return message_ms(lcr_gsm, mncc_prim->msg_type, mncc_prim);
1134 /* file descriptor callback if we can read or write form MNCC socket */
1135 static int mncc_fd_cb(struct lcr_fd *lfd, unsigned int what, void *inst, int idx)
1139 if (what & LCR_FD_READ)
1140 rc = mncc_fd_read(lfd, inst, idx);
1144 if (what & LCR_FD_WRITE)
1145 rc = mncc_fd_write(lfd, inst, idx);
1150 int mncc_socket_retry_cb(struct lcr_timer *timer, void *inst, int index)
1152 struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
1155 lcr_gsm->mncc_lfd.fd = -1;
1157 fd = socket(PF_UNIX, SOCK_SEQPACKET, 0);
1159 PERROR("Cannot create SEQPACKET socket, giving up!\n");
1163 rc = connect(fd, (struct sockaddr *) &lcr_gsm->sun,
1164 sizeof(lcr_gsm->sun));
1166 PERROR("Could not connect to MNCC socket %s, "
1167 "retrying in %u seconds\n", lcr_gsm->sun.sun_path,
1168 SOCKET_RETRY_TIMER);
1170 schedule_timer(&lcr_gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
1172 PDEBUG(DEBUG_GSM, "Connected to MNCC socket %s!\n", lcr_gsm->sun.sun_path);
1173 lcr_gsm->mncc_lfd.fd = fd;
1174 register_fd(&lcr_gsm->mncc_lfd, LCR_FD_READ, &mncc_fd_cb, lcr_gsm, 0);