3 Copyright (C) 2010 Simon MORLAT (simon.morlat@free.fr)
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 #include "sal_eXosip2.h"
22 #include "offeranswer.h"
25 static void _osip_list_set_empty(osip_list_t *l, void (*freefunc)(void*)){
27 while((data=osip_list_get(l,0))!=NULL){
28 osip_list_remove(l,0);
33 void sal_get_default_local_ip(Sal *sal, int address_family,char *ip, size_t iplen){
34 if (eXosip_guess_localip(address_family,ip,iplen)<0){
35 /*default to something */
36 strncpy(ip,address_family==AF_INET6 ? "::1" : "127.0.0.1",iplen);
37 ms_error("Could not find default routable ip address !");
41 static SalOp * sal_find_register(Sal *sal, int rid){
44 for(elem=sal->registers;elem!=NULL;elem=elem->next){
45 op=(SalOp*)elem->data;
46 if (op->rid==rid) return op;
51 static void sal_add_register(Sal *sal, SalOp *op){
52 sal->registers=ms_list_append(sal->registers,op);
55 static void sal_remove_register(Sal *sal, int rid){
58 for(elem=sal->registers;elem!=NULL;elem=elem->next){
59 op=(SalOp*)elem->data;
61 sal->registers=ms_list_remove_link(sal->registers,elem);
67 static SalOp * sal_find_other(Sal *sal, osip_message_t *response){
70 osip_call_id_t *callid=osip_message_get_call_id(response);
72 ms_error("There is no call-id in this response !");
75 for(elem=sal->other_transactions;elem!=NULL;elem=elem->next){
76 op=(SalOp*)elem->data;
77 if (osip_call_id_match(callid,op->call_id)==0) return op;
82 static void sal_add_other(Sal *sal, SalOp *op, osip_message_t *request){
83 osip_call_id_t *callid=osip_message_get_call_id(request);
85 ms_error("There is no call id in the request !");
88 osip_call_id_clone(callid,&op->call_id);
89 sal->other_transactions=ms_list_append(sal->other_transactions,op);
92 static void sal_remove_other(Sal *sal, SalOp *op){
93 sal->other_transactions=ms_list_remove(sal->other_transactions,op);
97 static void sal_add_pending_auth(Sal *sal, SalOp *op){
98 sal->pending_auths=ms_list_append(sal->pending_auths,op);
102 static void sal_remove_pending_auth(Sal *sal, SalOp *op){
103 sal->pending_auths=ms_list_remove(sal->pending_auths,op);
106 void sal_exosip_fix_route(SalOp *op){
107 if (sal_op_get_route(op)!=NULL){
108 osip_route_t *rt=NULL;
109 osip_uri_param_t *lr_param=NULL;
111 osip_route_init(&rt);
112 if (osip_route_parse(rt,sal_op_get_route(op))<0){
113 ms_warning("Bad route %s!",sal_op_get_route(op));
114 sal_op_set_route(op,NULL);
116 /* check if the lr parameter is set , if not add it */
117 osip_uri_uparam_get_byname(rt->url, "lr", &lr_param);
120 osip_uri_uparam_add(rt->url,osip_strdup("lr"),NULL);
121 osip_route_to_str(rt,&tmproute);
122 sal_op_set_route(op,tmproute);
130 SalOp * sal_op_new(Sal *sal){
131 SalOp *op=ms_new(SalOp,1);
132 __sal_op_init(op,sal);
133 op->cid=op->did=op->tid=op->rid=op->nid=op->sid=-1;
135 op->supports_session_timers=FALSE;
136 op->sdp_offering=TRUE;
137 op->pending_auth=NULL;
144 void sal_op_release(SalOp *op){
146 sdp_message_free(op->sdp_answer);
147 if (op->pending_auth)
148 eXosip_event_free(op->pending_auth);
150 sal_remove_register(op->base.root,op->rid);
153 ms_message("Cleaning cid %i",op->cid);
154 eXosip_call_set_reference(op->cid,NULL);
157 sal_remove_out_subscribe(op->base.root,op);
160 sal_remove_in_subscribe(op->base.root,op);
162 if (op->pending_auth){
163 sal_remove_pending_auth(op->base.root,op);
166 sal_media_description_unref(op->result);
168 sal_remove_other(op->base.root,op);
169 osip_call_id_free(op->call_id);
174 static void _osip_trace_func(char *fi, int li, osip_trace_level_t level, char *chfr, va_list ap){
175 int ortp_level=ORTP_DEBUG;
181 ortp_level=ORTP_MESSAGE;
184 ortp_level=ORTP_WARNING;
188 ortp_level=ORTP_ERROR;
191 ortp_level=ORTP_FATAL;
193 case END_TRACE_LEVEL:
196 if (ortp_log_level_enabled(level)){
197 int len=strlen(chfr);
198 char *chfrdup=ortp_strdup(chfr);
199 /*need to remove endline*/
201 if (chfrdup[len-1]=='\n')
203 if (chfrdup[len-2]=='\r')
206 ortp_logv(ortp_level,chfrdup,ap);
213 static bool_t firsttime=TRUE;
215 osip_trace_initialize_func (OSIP_INFO4,&_osip_trace_func);
219 return ms_new0(Sal,1);
222 void sal_uninit(Sal* sal){
227 void sal_set_user_pointer(Sal *sal, void *user_data){
231 void *sal_get_user_pointer(const Sal *sal){
235 static void unimplemented_stub(){
236 ms_warning("Unimplemented SAL callback");
239 void sal_set_callbacks(Sal *ctx, const SalCallbacks *cbs){
240 memcpy(&ctx->callbacks,cbs,sizeof(*cbs));
241 if (ctx->callbacks.call_received==NULL)
242 ctx->callbacks.call_received=(SalOnCallReceived)unimplemented_stub;
243 if (ctx->callbacks.call_ringing==NULL)
244 ctx->callbacks.call_ringing=(SalOnCallRinging)unimplemented_stub;
245 if (ctx->callbacks.call_accepted==NULL)
246 ctx->callbacks.call_accepted=(SalOnCallAccepted)unimplemented_stub;
247 if (ctx->callbacks.call_failure==NULL)
248 ctx->callbacks.call_failure=(SalOnCallFailure)unimplemented_stub;
249 if (ctx->callbacks.call_terminated==NULL)
250 ctx->callbacks.call_terminated=(SalOnCallTerminated)unimplemented_stub;
251 if (ctx->callbacks.call_updated==NULL)
252 ctx->callbacks.call_updated=(SalOnCallUpdated)unimplemented_stub;
253 if (ctx->callbacks.auth_requested==NULL)
254 ctx->callbacks.auth_requested=(SalOnAuthRequested)unimplemented_stub;
255 if (ctx->callbacks.auth_success==NULL)
256 ctx->callbacks.auth_success=(SalOnAuthSuccess)unimplemented_stub;
257 if (ctx->callbacks.register_success==NULL)
258 ctx->callbacks.register_success=(SalOnRegisterSuccess)unimplemented_stub;
259 if (ctx->callbacks.register_failure==NULL)
260 ctx->callbacks.register_failure=(SalOnRegisterFailure)unimplemented_stub;
261 if (ctx->callbacks.dtmf_received==NULL)
262 ctx->callbacks.dtmf_received=(SalOnDtmfReceived)unimplemented_stub;
263 if (ctx->callbacks.notify==NULL)
264 ctx->callbacks.notify=(SalOnNotify)unimplemented_stub;
265 if (ctx->callbacks.subscribe_received==NULL)
266 ctx->callbacks.subscribe_received=(SalOnSubscribeReceived)unimplemented_stub;
267 if (ctx->callbacks.text_received==NULL)
268 ctx->callbacks.text_received=(SalOnTextReceived)unimplemented_stub;
269 if (ctx->callbacks.internal_message==NULL)
270 ctx->callbacks.internal_message=(SalOnInternalMsg)unimplemented_stub;
271 if (ctx->callbacks.ping_reply==NULL)
272 ctx->callbacks.ping_reply=(SalOnPingReply)unimplemented_stub;
275 int sal_listen_port(Sal *ctx, const char *addr, int port, SalTransport tr, int is_secure){
278 int proto=IPPROTO_UDP;
280 if (ctx->running) eXosip_quit();
283 eXosip_set_option(13,&err); /*13=EXOSIP_OPT_SRV_WITH_NAPTR, as it is an enum value, we can't use it unless we are sure of the
284 version of eXosip, which is not the case*/
285 /*see if it looks like an IPv6 address*/
286 ipv6=strchr(addr,':')!=NULL;
287 eXosip_enable_ipv6(ipv6);
289 if (tr!=SalTransportDatagram || is_secure){
290 ms_fatal("SIP over TCP or TLS or DTLS is not supported yet.");
294 err=eXosip_listen_addr(proto, addr, port, ipv6 ? PF_INET6 : PF_INET, 0);
298 void sal_set_user_agent(Sal *ctx, const char *user_agent){
299 eXosip_set_user_agent(user_agent);
302 void sal_use_session_timers(Sal *ctx, int expires){
303 ctx->session_expires=expires;
306 MSList *sal_get_pending_auths(Sal *sal){
307 return ms_list_copy(sal->pending_auths);
310 static int extract_received_rport(osip_message_t *msg, const char **received, int *rportval){
311 osip_via_t *via=NULL;
312 osip_generic_param_t *param=NULL;
315 osip_message_get_via(msg,0,&via);
317 osip_via_param_get_byname(via,"rport",¶m);
320 if (rport && rport[0]!='\0') *rportval=atoi(rport);
324 osip_via_param_get_byname(via,"received",¶m);
325 if (param) *received=param->gvalue;
330 static void set_sdp(osip_message_t *sip,sdp_message_t *msg){
334 sdp_message_to_str(msg,&sdp);
336 snprintf(clen,sizeof(clen),"%i",sdplen);
337 osip_message_set_body(sip,sdp,sdplen);
338 osip_message_set_content_type(sip,"application/sdp");
339 osip_message_set_content_length(sip,clen);
343 static void set_sdp_from_desc(osip_message_t *sip, const SalMediaDescription *desc){
344 sdp_message_t *msg=media_description_to_sdp(desc);
346 ms_error("Fail to print sdp message !");
350 sdp_message_free(msg);
353 static void sdp_process(SalOp *h){
354 ms_message("Doing SDP offer/answer process");
356 sal_media_description_unref(h->result);
358 h->result=sal_media_description_new();
359 if (h->sdp_offering){
360 offer_answer_initiate_outgoing(h->base.local_media,h->base.remote_media,h->result);
363 offer_answer_initiate_incoming(h->base.local_media,h->base.remote_media,h->result);
364 h->sdp_answer=media_description_to_sdp(h->result);
365 strcpy(h->result->addr,h->base.remote_media->addr);
366 for(i=0;i<h->result->nstreams;++i){
367 if (h->result->streams[i].port>0){
368 strcpy(h->result->streams[i].addr,h->base.remote_media->streams[i].addr);
369 h->result->streams[i].ptime=h->base.remote_media->streams[i].ptime;
370 h->result->streams[i].bandwidth=h->base.remote_media->streams[i].bandwidth;
371 h->result->streams[i].port=h->base.remote_media->streams[i].port;
378 int sal_call_set_local_media_description(SalOp *h, SalMediaDescription *desc){
380 sal_media_description_ref(desc);
381 if (h->base.local_media)
382 sal_media_description_unref(h->base.local_media);
383 h->base.local_media=desc;
387 int sal_call(SalOp *h, const char *from, const char *to){
389 osip_message_t *invite=NULL;
390 sal_op_set_from(h,from);
392 sal_exosip_fix_route(h);
393 err=eXosip_call_build_initial_invite(&invite,to,from,sal_op_get_route(h),"Phone call");
395 ms_error("Could not create call.");
398 if (h->base.contact){
399 _osip_list_set_empty(&invite->contacts,(void (*)(void*))osip_contact_free);
400 osip_message_set_contact(invite,h->base.contact);
402 if (h->base.root->session_expires!=0){
403 osip_message_set_header(invite, "Session-expires", "200");
404 osip_message_set_supported(invite, "timer");
406 if (h->base.local_media){
407 h->sdp_offering=TRUE;
408 set_sdp_from_desc(invite,h->base.local_media);
409 }else h->sdp_offering=FALSE;
411 err=eXosip_call_send_initial_invite(invite);
415 ms_error("Fail to send invite !");
418 eXosip_call_set_reference(h->cid,h);
423 int sal_call_notify_ringing(SalOp *h){
425 eXosip_call_send_answer(h->tid,180,NULL);
430 int sal_call_accept(SalOp * h){
432 const char *contact=sal_op_get_contact(h);
434 int err=eXosip_call_build_answer(h->tid,200,&msg);
435 if (err<0 || msg==NULL){
436 ms_error("Fail to build answer for call: err=%i",err);
439 if (h->base.root->session_expires!=0){
440 if (h->supports_session_timers) osip_message_set_supported(msg, "timer");
444 _osip_list_set_empty(&msg->contacts,(void (*)(void*))osip_contact_free);
445 osip_message_set_contact(msg,contact);
448 if (h->base.local_media){
449 /*this is the case where we received an invite without SDP*/
450 if (h->sdp_offering) {
451 set_sdp_from_desc(msg,h->base.local_media);
454 set_sdp(msg,h->sdp_answer);
457 ms_error("You are accepting a call but not defined any media capabilities !");
459 eXosip_call_send_answer(h->tid,200,msg);
463 int sal_call_decline(SalOp *h, SalReason reason, const char *redirect){
464 if (reason==SalReasonBusy){
466 eXosip_call_send_answer(h->tid,486,NULL);
469 else if (reason==SalReasonTemporarilyUnavailable){
471 eXosip_call_send_answer(h->tid,480,NULL);
473 }else if (reason==SalReasonDoNotDisturb){
475 eXosip_call_send_answer(h->tid,600,NULL);
477 }else if (reason==SalReasonMedia){
479 eXosip_call_send_answer(h->tid,415,NULL);
481 }else if (redirect!=NULL && reason==SalReasonRedirect){
484 if (strstr(redirect,"sip:")!=0) code=302;
487 eXosip_call_build_answer(h->tid,code,&msg);
488 osip_message_set_contact(msg,redirect);
489 eXosip_call_send_answer(h->tid,code,msg);
491 }else sal_call_terminate(h);
495 SalMediaDescription * sal_call_get_final_media_description(SalOp *h){
496 if (h->base.local_media && h->base.remote_media && !h->result){
502 int sal_ping(SalOp *op, const char *from, const char *to){
503 osip_message_t *options=NULL;
505 sal_op_set_from(op,from);
506 sal_op_set_to(op,to);
507 eXosip_options_build_request (&options, sal_op_get_to(op),
508 sal_op_get_from(op),sal_op_get_route(op));
510 if (op->base.root->session_expires!=0){
511 osip_message_set_header(options, "Session-expires", "200");
512 osip_message_set_supported(options, "timer");
514 sal_add_other(sal_op_get_sal(op),op,options);
515 return eXosip_options_send_request(options);
520 int sal_refer(SalOp *h, const char *refer_to){
521 osip_message_t *msg=NULL;
524 eXosip_call_build_refer(h->did,refer_to, &msg);
525 if (msg) err=eXosip_call_send_request(h->did, msg);
531 int sal_call_send_dtmf(SalOp *h, char dtmf){
532 osip_message_t *msg=NULL;
537 eXosip_call_build_info(h->did,&msg);
539 snprintf(dtmf_body, sizeof(dtmf_body), "Signal=%c\r\nDuration=250\r\n", dtmf);
540 osip_message_set_body(msg,dtmf_body,strlen(dtmf_body));
541 osip_message_set_content_type(msg,"application/dtmf-relay");
542 snprintf(clen,sizeof(clen),"%lu",(unsigned long)strlen(dtmf_body));
543 osip_message_set_content_length(msg,clen);
544 eXosip_call_send_request(h->did,msg);
550 int sal_call_terminate(SalOp *h){
552 eXosip_call_terminate(h->cid,h->did);
553 eXosip_call_set_reference(h->cid,NULL);
558 void sal_op_authenticate(SalOp *h, const SalAuthInfo *info){
559 if (h->pending_auth){
561 if (info->userid==NULL || info->userid[0]=='\0') userid=info->username;
562 else userid=info->userid;
563 ms_message("Authentication info for %s %s added to eXosip", info->username,info->realm);
564 eXosip_add_authentication_info (info->username,userid,
565 info->password, NULL,info->realm);
567 eXosip_default_action(h->pending_auth);
569 ms_message("eXosip_default_action() done");
570 eXosip_clear_authentication_info();
571 eXosip_event_free(h->pending_auth);
572 sal_remove_pending_auth(sal_op_get_sal(h),h);
573 h->pending_auth=NULL;
577 static void set_network_origin(SalOp *op, osip_message_t *req){
578 const char *received=NULL;
581 if (extract_received_rport(req,&received,&rport)!=0){
582 osip_via_t *via=NULL;
584 osip_message_get_via(req,0,&via);
585 received=osip_via_get_host(via);
586 tmp=osip_via_get_port(via);
587 if (tmp) rport=atoi(tmp);
589 snprintf(origin,sizeof(origin)-1,"sip:%s:%i",received,rport);
590 __sal_op_set_network_origin(op,origin);
593 static void inc_new_call(Sal *sal, eXosip_event_t *ev){
594 SalOp *op=sal_op_new(sal);
595 osip_from_t *from,*to;
597 sdp_message_t *sdp=eXosip_get_sdp_info(ev->request);
599 set_network_origin(op,ev->request);
602 op->sdp_offering=FALSE;
603 op->base.remote_media=sal_media_description_new();
604 sdp_to_media_description(sdp,op->base.remote_media);
605 sdp_message_free(sdp);
606 }else op->sdp_offering=TRUE;
608 from=osip_message_get_from(ev->request);
609 to=osip_message_get_to(ev->request);
610 osip_from_to_str(from,&tmp);
611 sal_op_set_from(op,tmp);
613 osip_from_to_str(to,&tmp);
614 sal_op_set_to(op,tmp);
621 eXosip_call_set_reference(op->cid,op);
622 sal->callbacks.call_received(op);
625 static void handle_reinvite(Sal *sal, eXosip_event_t *ev){
626 SalOp *op=(SalOp*)ev->external_reference;
628 osip_message_t *msg=NULL;
631 ms_warning("Reinvite for non-existing operation !");
636 sdp=eXosip_get_sdp_info(ev->request);
637 if (op->base.remote_media){
638 sal_media_description_unref(op->base.remote_media);
639 op->base.remote_media=NULL;
642 eXosip_call_build_answer(ev->tid,200,&msg);
644 if (msg==NULL) return;
645 if (op->base.root->session_expires!=0){
646 if (op->supports_session_timers) osip_message_set_supported(msg, "timer");
648 if (op->base.contact){
649 _osip_list_set_empty(&msg->contacts,(void (*)(void*))osip_contact_free);
650 osip_message_set_contact(msg,op->base.contact);
653 op->sdp_offering=FALSE;
654 op->base.remote_media=sal_media_description_new();
655 sdp_to_media_description(sdp,op->base.remote_media);
656 sdp_message_free(sdp);
658 set_sdp(msg,op->sdp_answer);
660 op->sdp_offering=TRUE;
661 set_sdp_from_desc(msg,op->base.local_media);
664 eXosip_call_send_answer(ev->tid,200,msg);
668 static void handle_ack(Sal *sal, eXosip_event_t *ev){
669 SalOp *op=(SalOp*)ev->external_reference;
673 ms_warning("ack for non-existing call !");
676 sdp=eXosip_get_sdp_info(ev->ack);
678 op->base.remote_media=sal_media_description_new();
679 sdp_to_media_description(sdp,op->base.remote_media);
681 sdp_message_free(sdp);
684 sal->callbacks.call_updated(op);
687 sal->callbacks.call_ack(op);
691 static void update_contact_from_response(SalOp *op, osip_message_t *response){
692 const char *received;
694 if (extract_received_rport(response,&received,&rport)==0){
695 const char *contact=sal_op_get_contact(op);
697 /*no contact given yet, use from instead*/
698 contact=sal_op_get_from(op);
701 SalAddress *addr=sal_address_new(contact);
703 sal_address_set_domain(addr,received);
704 sal_address_set_port_int(addr,rport);
705 tmp=sal_address_as_string(addr);
706 ms_message("Contact address updated to %s for this dialog",tmp);
707 sal_op_set_contact(op,tmp);
713 static int call_proceeding(Sal *sal, eXosip_event_t *ev){
714 SalOp *op=(SalOp*)ev->external_reference;
717 ms_warning("This call has been canceled.");
719 eXosip_call_terminate(ev->cid,ev->did);
726 /* update contact if received and rport are set by the server
727 note: will only be used by remote for next INVITE, if any...*/
728 update_contact_from_response(op,ev->response);
732 static void call_ringing(Sal *sal, eXosip_event_t *ev){
735 if (call_proceeding(sal, ev)==-1) return;
736 op=(SalOp*)ev->external_reference;
737 sdp=eXosip_get_sdp_info(ev->response);
739 op->base.remote_media=sal_media_description_new();
740 sdp_to_media_description(sdp,op->base.remote_media);
741 sdp_message_free(sdp);
742 if (op->base.local_media) sdp_process(op);
744 sal->callbacks.call_ringing(op);
747 static void call_accepted(Sal *sal, eXosip_event_t *ev){
749 osip_message_t *msg=NULL;
753 op=(SalOp*)ev->external_reference;
755 ms_error("A closed call is accepted ?");
758 sdp=eXosip_get_sdp_info(ev->response);
760 op->base.remote_media=sal_media_description_new();
761 sdp_to_media_description(sdp,op->base.remote_media);
762 sdp_message_free(sdp);
763 if (op->base.local_media) sdp_process(op);
765 eXosip_call_build_ack(ev->did,&msg);
766 contact=sal_op_get_contact(op);
768 _osip_list_set_empty(&msg->contacts,(void (*)(void*))osip_contact_free);
769 osip_message_set_contact(msg,contact);
772 set_sdp(msg,op->sdp_answer);
773 eXosip_call_send_ack(ev->did,msg);
774 sal->callbacks.call_accepted(op);
777 static void call_terminated(Sal *sal, eXosip_event_t *ev){
780 op=(SalOp*)ev->external_reference;
782 ms_warning("Call terminated for already closed call ?");
785 osip_from_to_str(ev->request->from,&from);
786 eXosip_call_set_reference(ev->cid,NULL);
788 sal->callbacks.call_terminated(op,from);
792 static void call_released(Sal *sal, eXosip_event_t *ev){
794 op=(SalOp*)ev->external_reference;
800 sal->callbacks.call_failure(op,SalErrorNoResponse,SalReasonUnknown,NULL);
803 static int get_auth_data_from_response(osip_message_t *resp, const char **realm, const char **username){
804 const char *prx_realm=NULL,*www_realm=NULL;
805 osip_proxy_authenticate_t *prx_auth;
806 osip_www_authenticate_t *www_auth;
808 *username=osip_uri_get_username(resp->from->url);
809 prx_auth=(osip_proxy_authenticate_t*)osip_list_get(&resp->proxy_authenticates,0);
810 www_auth=(osip_proxy_authenticate_t*)osip_list_get(&resp->www_authenticates,0);
812 prx_realm=osip_proxy_authenticate_get_realm(prx_auth);
814 www_realm=osip_www_authenticate_get_realm(www_auth);
818 }else if (www_realm){
826 static int get_auth_data_from_request(osip_message_t *msg, const char **realm, const char **username){
827 osip_authorization_t *auth=NULL;
828 osip_proxy_authorization_t *prx_auth=NULL;
830 *username=osip_uri_get_username(msg->from->url);
831 osip_message_get_authorization(msg, 0, &auth);
833 *realm=osip_authorization_get_realm(auth);
836 osip_message_get_proxy_authorization(msg,0,&prx_auth);
838 *realm=osip_proxy_authorization_get_realm(prx_auth);
844 static int get_auth_data(eXosip_event_t *ev, const char **realm, const char **username){
845 if (ev->response && get_auth_data_from_response(ev->response,realm,username)==0) return 0;
846 if (ev->request && get_auth_data_from_request(ev->request,realm,username)==0) return 0;
850 int sal_op_get_auth_requested(SalOp *op, const char **realm, const char **username){
851 if (op->pending_auth){
852 return get_auth_data(op->pending_auth,realm,username);
857 static SalOp *find_op(Sal *sal, eXosip_event_t *ev){
858 if (ev->external_reference)
859 return (SalOp*)ev->external_reference;
861 return sal_find_register(sal,ev->rid);
863 if (ev->response) return sal_find_other(sal,ev->response);
867 static bool_t process_authentication(Sal *sal, eXosip_event_t *ev){
869 const char *username,*realm;
872 ms_warning("No operation associated with this authentication !");
875 if (get_auth_data(ev,&realm,&username)==0){
876 if (op->pending_auth!=NULL)
877 eXosip_event_free(op->pending_auth);
879 sal_add_pending_auth (sal,op);
880 sal->callbacks.auth_requested(op,realm,username);
886 static void authentication_ok(Sal *sal, eXosip_event_t *ev){
888 const char *username,*realm;
891 ms_warning("No operation associated with this authentication_ok!");
894 if (get_auth_data(ev,&realm,&username)==0){
895 sal->callbacks.auth_success(op,realm,username);
899 static bool_t call_failure(Sal *sal, eXosip_event_t *ev){
902 const char *reason=NULL;
903 SalError error=SalErrorUnknown;
904 SalReason sr=SalReasonUnknown;
906 op=(SalOp*)ev->external_reference;
909 ms_warning("Call failure reported for a closed call, ignored.");
914 code=osip_message_get_status_code(ev->response);
915 reason=osip_message_get_reason_phrase(ev->response);
921 return process_authentication(sal,ev);
924 error=SalErrorUnknown;
927 error=SalErrorFailure;
928 sr=SalReasonNotFound;
931 error=SalErrorFailure;
935 eXosip_default_action(ev);
939 error=SalErrorFailure;
940 sr=SalReasonTemporarilyUnavailable;
942 error=SalErrorFailure;
948 error=SalErrorFailure;
949 sr=SalReasonDoNotDisturb;
952 error=SalErrorFailure;
953 sr=SalReasonDeclined;
957 error=SalErrorFailure;
959 }else error=SalErrorNoResponse;
961 if (code!=487) sal->callbacks.call_failure(op,error,sr,reason);
966 static void process_media_control_xml(Sal *sal, eXosip_event_t *ev){
967 SalOp *op=(SalOp*)ev->external_reference;
968 osip_body_t *body=NULL;
971 ms_warning("media control xml received without operation context!");
975 osip_message_get_body(ev->request,0,&body);
976 if (body && body->body!=NULL &&
977 strstr(body->body,"picture_fast_update")){
978 osip_message_t *ans=NULL;
979 ms_message("Receiving VFU request !");
980 if (sal->callbacks.vfu_request){
981 sal->callbacks.vfu_request(op);
982 eXosip_call_build_answer(ev->tid,200,&ans);
984 eXosip_call_send_answer(ev->tid,200,ans);
989 static void process_dtmf_relay(Sal *sal, eXosip_event_t *ev){
990 SalOp *op=(SalOp*)ev->external_reference;
991 osip_body_t *body=NULL;
994 ms_warning("media dtmf relay received without operation context!");
998 osip_message_get_body(ev->request,0,&body);
999 if (body && body->body!=NULL){
1000 osip_message_t *ans=NULL;
1001 const char *name=strstr(body->body,"Signal");
1002 if (name==NULL) name=strstr(body->body,"signal");
1004 ms_warning("Could not extract the dtmf name from the SIP INFO.");
1007 name+=strlen("signal");
1008 if (sscanf(name," = %1s",tmp)==1){
1009 ms_message("Receiving dtmf %s via SIP INFO.",tmp);
1010 if (sal->callbacks.dtmf_received != NULL)
1011 sal->callbacks.dtmf_received(op, tmp[0]);
1014 eXosip_call_build_answer(ev->tid,200,&ans);
1016 eXosip_call_send_answer(ev->tid,200,ans);
1020 static void call_message_new(Sal *sal, eXosip_event_t *ev){
1021 osip_message_t *ans=NULL;
1023 if (MSG_IS_INFO(ev->request)){
1024 osip_content_type_t *ct;
1025 ct=osip_message_get_content_type(ev->request);
1026 if (ct && ct->subtype){
1027 if (strcmp(ct->subtype,"media_control+xml")==0)
1028 process_media_control_xml(sal,ev);
1029 else if (strcmp(ct->subtype,"dtmf-relay")==0)
1030 process_dtmf_relay(sal,ev);
1032 ms_message("Unhandled SIP INFO.");
1033 /*send an "Not implemented" answer*/
1035 eXosip_call_build_answer(ev->tid,501,&ans);
1037 eXosip_call_send_answer(ev->tid,501,ans);
1041 /*empty SIP INFO, probably to test we are alive. Send an empty answer*/
1043 eXosip_call_build_answer(ev->tid,200,&ans);
1045 eXosip_call_send_answer(ev->tid,200,ans);
1049 }else ms_warning("call_message_new: No request ?");
1052 static void inc_update(Sal *sal, eXosip_event_t *ev){
1053 osip_message_t *msg=NULL;
1054 ms_message("Processing incoming UPDATE");
1056 eXosip_message_build_answer(ev->tid,200,&msg);
1058 eXosip_message_send_answer(ev->tid,200,msg);
1062 static bool_t comes_from_local_if(osip_message_t *msg){
1063 osip_via_t *via=NULL;
1064 osip_message_get_via(msg,0,&via);
1067 host=osip_via_get_host(via);
1068 if (strcmp(host,"127.0.0.1")==0 || strcmp(host,"::1")==0){
1069 osip_generic_param_t *param=NULL;
1070 osip_via_param_get_byname(via,"received",¶m);
1071 if (param==NULL) return TRUE;
1072 if (param->gvalue &&
1073 (strcmp(param->gvalue,"127.0.0.1")==0 || strcmp(param->gvalue,"::1")==0)){
1081 static void text_received(Sal *sal, eXosip_event_t *ev){
1082 osip_body_t *body=NULL;
1083 char *from=NULL,*msg;
1085 osip_message_get_body(ev->request,0,&body);
1087 ms_error("Could not get text message from SIP body");
1091 osip_from_to_str(ev->request->from,&from);
1092 sal->callbacks.text_received(sal,from,msg);
1096 static void other_request(Sal *sal, eXosip_event_t *ev){
1097 ms_message("in other_request");
1098 if (ev->request==NULL) return;
1099 if (strcmp(ev->request->sip_method,"MESSAGE")==0){
1100 text_received(sal,ev);
1101 eXosip_message_send_answer(ev->tid,200,NULL);
1102 }else if (strcmp(ev->request->sip_method,"OPTIONS")==0){
1103 osip_message_t *options=NULL;
1104 eXosip_options_build_answer(ev->tid,200,&options);
1105 osip_message_set_allow(options,"INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, SUBSCRIBE, NOTIFY, INFO");
1106 osip_message_set_accept(options,"application/sdp");
1107 eXosip_options_send_answer(ev->tid,200,options);
1108 }else if (strcmp(ev->request->sip_method,"WAKEUP")==0
1109 && comes_from_local_if(ev->request)) {
1110 eXosip_message_send_answer(ev->tid,200,NULL);
1111 ms_message("Receiving WAKEUP request !");
1112 sal->callbacks.internal_message(sal,"WAKEUP");
1113 }else if (strncmp(ev->request->sip_method, "REFER", 5) == 0){
1114 ms_message("Receiving REFER request !");
1115 if (comes_from_local_if(ev->request)) {
1116 osip_header_t *h=NULL;
1117 osip_message_header_get_byname(ev->request,"Refer-To",0,&h);
1118 eXosip_message_send_answer(ev->tid,200,NULL);
1120 sal->callbacks.refer_received(sal,NULL,h->hvalue);
1122 }else ms_warning("Ignored REFER not coming from this local loopback interface.");
1123 }else if (strncmp(ev->request->sip_method, "UPDATE", 6) == 0){
1128 osip_message_to_str(ev->request,&tmp,&msglen);
1130 ms_message("Unsupported request received:\n%s",tmp);
1133 /*answer with a 501 Not implemented*/
1134 eXosip_message_send_answer(ev->tid,501,NULL);
1138 static bool_t register_again_with_updated_contact(SalOp *op, osip_message_t *orig_request, osip_message_t *last_answer){
1139 osip_message_t *msg;
1140 const char *received;
1142 osip_contact_t *ctt=NULL;
1146 if (extract_received_rport(last_answer,&received,&rport)==-1) return FALSE;
1147 osip_message_get_contact(orig_request,0,&ctt);
1148 if (strcmp(ctt->url->host,received)==0){
1149 /*ip address matches, check ports*/
1150 const char *contact_port=ctt->url->port;
1151 if (contact_port==NULL || contact_port[0]=='\0')
1152 contact_port="5060";
1153 if (atoi(contact_port)==rport){
1154 ms_message("Register has up to date contact, doing nothing.");
1156 }else ms_message("ports do not match, need to update the register (%s <> %i)", contact_port,rport);
1160 eXosip_register_build_register(op->rid,op->expires,&msg);
1163 ms_warning("Fail to create a contact updated register.");
1166 osip_message_get_contact(msg,0,&ctt);
1167 if (ctt->url->host!=NULL){
1168 osip_free(ctt->url->host);
1170 ctt->url->host=osip_strdup(received);
1171 if (ctt->url->port!=NULL){
1172 osip_free(ctt->url->port);
1174 snprintf(port,sizeof(port),"%i",rport);
1175 ctt->url->port=osip_strdup(port);
1176 eXosip_register_send_register(op->rid,msg);
1178 osip_contact_to_str(ctt,&tmp);
1179 sal_op_set_contact(op,tmp);
1180 ms_message("Resending new register with updated contact %s",tmp);
1185 static void registration_success(Sal *sal, eXosip_event_t *ev){
1186 SalOp *op=sal_find_register(sal,ev->rid);
1187 osip_header_t *h=NULL;
1190 ms_error("Receiving register response for unknown operation");
1193 osip_message_get_expires(ev->request,0,&h);
1194 if (h!=NULL && atoi(h->hvalue)!=0){
1196 if (!register_again_with_updated_contact(op,ev->request,ev->response)){
1197 sal->callbacks.register_success(op,registered);
1199 }else registered=FALSE;
1202 static bool_t registration_failure(Sal *sal, eXosip_event_t *ev){
1204 const char *reason=NULL;
1205 SalOp *op=sal_find_register(sal,ev->rid);
1206 SalReason sr=SalReasonUnknown;
1207 SalError se=SalErrorUnknown;
1210 ms_error("Receiving register failure for unknown operation");
1214 status_code=osip_message_get_status_code(ev->response);
1215 reason=osip_message_get_reason_phrase(ev->response);
1217 switch(status_code){
1220 return process_authentication(sal,ev);
1223 /* if contact is up to date, process the failure, otherwise resend a new register with
1224 updated contact first, just in case the faillure is due to incorrect contact */
1225 if (register_again_with_updated_contact(op,ev->request,ev->response))
1226 return TRUE; /*we are retrying with an updated contact*/
1227 if (status_code==403){
1229 sr=SalReasonForbidden;
1230 }else if (status_code==0){
1231 se=SalErrorNoResponse;
1233 sal->callbacks.register_failure(op,se,sr,reason);
1238 static void other_request_reply(Sal *sal,eXosip_event_t *ev){
1239 SalOp *op=find_op(sal,ev);
1242 ms_warning("other_request_reply(): Receiving response to unknown request.");
1246 update_contact_from_response(op,ev->response);
1247 sal->callbacks.ping_reply(op);
1251 static bool_t process_event(Sal *sal, eXosip_event_t *ev){
1253 case EXOSIP_CALL_ANSWERED:
1254 ms_message("CALL_ANSWERED\n");
1255 call_accepted(sal,ev);
1256 authentication_ok(sal,ev);
1258 case EXOSIP_CALL_CLOSED:
1259 case EXOSIP_CALL_CANCELLED:
1260 ms_message("CALL_CLOSED or CANCELLED\n");
1261 call_terminated(sal,ev);
1263 case EXOSIP_CALL_TIMEOUT:
1264 case EXOSIP_CALL_NOANSWER:
1265 ms_message("CALL_TIMEOUT or NOANSWER\n");
1266 return call_failure(sal,ev);
1268 case EXOSIP_CALL_REQUESTFAILURE:
1269 case EXOSIP_CALL_GLOBALFAILURE:
1270 case EXOSIP_CALL_SERVERFAILURE:
1271 ms_message("CALL_REQUESTFAILURE or GLOBALFAILURE or SERVERFAILURE\n");
1272 return call_failure(sal,ev);
1274 case EXOSIP_CALL_INVITE:
1275 ms_message("CALL_NEW\n");
1276 inc_new_call(sal,ev);
1278 case EXOSIP_CALL_REINVITE:
1279 handle_reinvite(sal,ev);
1281 case EXOSIP_CALL_ACK:
1282 ms_message("CALL_ACK");
1285 case EXOSIP_CALL_REDIRECTED:
1286 ms_message("CALL_REDIRECTED");
1287 eXosip_default_action(ev);
1289 case EXOSIP_CALL_PROCEEDING:
1290 ms_message("CALL_PROCEEDING");
1291 call_proceeding(sal,ev);
1293 case EXOSIP_CALL_RINGING:
1294 ms_message("CALL_RINGING");
1295 call_ringing(sal,ev);
1297 case EXOSIP_CALL_MESSAGE_NEW:
1298 ms_message("EXOSIP_CALL_MESSAGE_NEW");
1299 call_message_new(sal,ev);
1301 case EXOSIP_CALL_MESSAGE_REQUESTFAILURE:
1302 if (ev->did<0 && ev->response &&
1303 (ev->response->status_code==407 || ev->response->status_code==401)){
1304 return process_authentication(sal,ev);
1307 case EXOSIP_IN_SUBSCRIPTION_NEW:
1308 ms_message("CALL_SUBSCRIPTION_NEW ");
1309 sal_exosip_subscription_recv(sal,ev);
1311 case EXOSIP_IN_SUBSCRIPTION_RELEASED:
1312 ms_message("CALL_SUBSCRIPTION_NEW ");
1313 sal_exosip_in_subscription_closed(sal,ev);
1315 case EXOSIP_SUBSCRIPTION_UPDATE:
1316 ms_message("CALL_SUBSCRIPTION_UPDATE");
1318 case EXOSIP_SUBSCRIPTION_NOTIFY:
1319 ms_message("CALL_SUBSCRIPTION_NOTIFY");
1320 sal_exosip_notify_recv(sal,ev);
1322 case EXOSIP_SUBSCRIPTION_ANSWERED:
1323 ms_message("EXOSIP_SUBSCRIPTION_ANSWERED, ev->sid=%i, ev->did=%i\n",ev->sid,ev->did);
1324 sal_exosip_subscription_answered(sal,ev);
1326 case EXOSIP_SUBSCRIPTION_CLOSED:
1327 ms_message("EXOSIP_SUBSCRIPTION_CLOSED\n");
1328 sal_exosip_subscription_closed(sal,ev);
1330 case EXOSIP_SUBSCRIPTION_REQUESTFAILURE: /**< announce a request failure */
1331 if (ev->response && (ev->response->status_code == 407 || ev->response->status_code == 401)){
1332 return process_authentication(sal,ev);
1334 case EXOSIP_SUBSCRIPTION_SERVERFAILURE:
1335 case EXOSIP_SUBSCRIPTION_GLOBALFAILURE:
1336 sal_exosip_subscription_closed(sal,ev);
1338 case EXOSIP_CALL_RELEASED:
1339 ms_message("CALL_RELEASED\n");
1340 call_released(sal, ev);
1342 case EXOSIP_REGISTRATION_FAILURE:
1343 ms_message("REGISTRATION_FAILURE\n");
1344 return registration_failure(sal,ev);
1346 case EXOSIP_REGISTRATION_SUCCESS:
1347 authentication_ok(sal,ev);
1348 registration_success(sal,ev);
1350 case EXOSIP_MESSAGE_NEW:
1351 other_request(sal,ev);
1353 case EXOSIP_MESSAGE_PROCEEDING:
1354 case EXOSIP_MESSAGE_ANSWERED:
1355 case EXOSIP_MESSAGE_REDIRECTED:
1356 case EXOSIP_MESSAGE_SERVERFAILURE:
1357 case EXOSIP_MESSAGE_GLOBALFAILURE:
1358 other_request_reply(sal,ev);
1360 case EXOSIP_MESSAGE_REQUESTFAILURE:
1361 if (ev->response && (ev->response->status_code == 407 || ev->response->status_code == 401)){
1362 return process_authentication(sal,ev);
1366 ms_message("Unhandled exosip event ! %i",ev->type);
1372 int sal_iterate(Sal *sal){
1374 while((ev=eXosip_event_wait(0,0))!=NULL){
1375 if (process_event(sal,ev))
1376 eXosip_event_free(ev);
1379 eXosip_automatic_refresh();
1384 int sal_register(SalOp *h, const char *proxy, const char *from, int expires){
1385 osip_message_t *msg;
1386 sal_op_set_route(h,proxy);
1389 h->rid=eXosip_register_build_initial_register(from,proxy,sal_op_get_contact(h),expires,&msg);
1390 sal_add_register(h->base.root,h);
1393 eXosip_register_build_register(h->rid,expires,&msg);
1395 eXosip_register_send_register(h->rid,msg);
1401 int sal_unregister(SalOp *h){
1402 osip_message_t *msg=NULL;
1404 eXosip_register_build_register(h->rid,0,&msg);
1405 if (msg) eXosip_register_send_register(h->rid,msg);
1406 else ms_warning("Could not build unREGISTER !");
1413 SalAddress * sal_address_new(const char *uri){
1415 osip_from_init(&from);
1416 if (osip_from_parse(from,uri)!=0){
1417 osip_from_free(from);
1420 return (SalAddress*)from;
1423 SalAddress * sal_address_clone(const SalAddress *addr){
1424 osip_from_t *ret=NULL;
1425 osip_from_clone((osip_from_t*)addr,&ret);
1426 return (SalAddress*)ret;
1429 #define null_if_empty(s) (((s)!=NULL && (s)[0]!='\0') ? (s) : NULL )
1431 const char *sal_address_get_scheme(const SalAddress *addr){
1432 const osip_from_t *u=(const osip_from_t*)addr;
1433 return null_if_empty(u->url->scheme);
1436 const char *sal_address_get_display_name(const SalAddress* addr){
1437 const osip_from_t *u=(const osip_from_t*)addr;
1438 return null_if_empty(u->displayname);
1441 const char *sal_address_get_username(const SalAddress *addr){
1442 const osip_from_t *u=(const osip_from_t*)addr;
1443 return null_if_empty(u->url->username);
1446 const char *sal_address_get_domain(const SalAddress *addr){
1447 const osip_from_t *u=(const osip_from_t*)addr;
1448 return null_if_empty(u->url->host);
1451 void sal_address_set_display_name(SalAddress *addr, const char *display_name){
1452 osip_from_t *u=(osip_from_t*)addr;
1453 if (u->displayname!=NULL){
1454 osip_free(u->displayname);
1455 u->displayname=NULL;
1457 if (display_name!=NULL)
1458 u->displayname=osip_strdup(display_name);
1461 void sal_address_set_username(SalAddress *addr, const char *username){
1462 osip_from_t *uri=(osip_from_t*)addr;
1463 if (uri->url->username!=NULL){
1464 osip_free(uri->url->username);
1465 uri->url->username=NULL;
1468 uri->url->username=osip_strdup(username);
1471 void sal_address_set_domain(SalAddress *addr, const char *host){
1472 osip_from_t *uri=(osip_from_t*)addr;
1473 if (uri->url->host!=NULL){
1474 osip_free(uri->url->host);
1475 uri->url->host=NULL;
1478 uri->url->host=osip_strdup(host);
1481 void sal_address_set_port(SalAddress *addr, const char *port){
1482 osip_from_t *uri=(osip_from_t*)addr;
1483 if (uri->url->port!=NULL){
1484 osip_free(uri->url->port);
1485 uri->url->port=NULL;
1488 uri->url->port=osip_strdup(port);
1491 void sal_address_set_port_int(SalAddress *uri, int port){
1494 /*this is the default, special case to leave the port field blank*/
1495 sal_address_set_port(uri,NULL);
1498 snprintf(tmp,sizeof(tmp),"%i",port);
1499 sal_address_set_port(uri,tmp);
1502 void sal_address_clean(SalAddress *addr){
1503 osip_generic_param_freelist(& ((osip_from_t*)addr)->gen_params);
1506 char *sal_address_as_string(const SalAddress *u){
1508 osip_from_to_str((osip_from_t*)u,&tmp);
1514 char *sal_address_as_string_uri_only(const SalAddress *u){
1515 char *tmp=NULL,*ret;
1516 osip_uri_to_str(((osip_from_t*)u)->url,&tmp);
1522 void sal_address_destroy(SalAddress *u){
1523 osip_from_free((osip_from_t*)u);