static int _sal_op_send_request_with_contact(SalOp* op, belle_sip_request_t* request, bool_t add_contact) { belle_sip_client_transaction_t* client_transaction; belle_sip_provider_t* prov=op->base.root->prov; belle_sip_uri_t* outbound_proxy=NULL; belle_sip_header_contact_t* contact; int result =-1; belle_sip_uri_t *next_hop_uri=NULL; if (add_contact && !belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(request),belle_sip_header_contact_t)) { contact = sal_op_create_contact(op); belle_sip_message_set_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_HEADER(contact)); } /*keep existing*/ _sal_op_add_custom_headers(op, (belle_sip_message_t*)request); if (!op->dialog || belle_sip_dialog_get_state(op->dialog) == BELLE_SIP_DIALOG_NULL) { /*don't put route header if dialog is in confirmed state*/ const MSList *elem=sal_op_get_route_addresses(op); const char *transport; const char *method=belle_sip_request_get_method(request); belle_sip_listening_point_t *udplp=belle_sip_provider_get_listening_point(prov,"UDP"); if (elem) { outbound_proxy=belle_sip_header_address_get_uri((belle_sip_header_address_t*)elem->data); next_hop_uri=outbound_proxy; }else{ next_hop_uri=(belle_sip_uri_t*)belle_sip_object_clone((belle_sip_object_t*)belle_sip_request_get_uri(request)); } transport=belle_sip_uri_get_transport_param(next_hop_uri); if (transport==NULL){ /*compatibility mode: by default it should be udp as not explicitely set and if no udp listening point is available, then use * the first available transport*/ if (!belle_sip_uri_is_secure(next_hop_uri)){ if (udplp==NULL){ if (belle_sip_provider_get_listening_point(prov,"TCP")!=NULL){ transport="tcp"; }else if (belle_sip_provider_get_listening_point(prov,"TLS")!=NULL ){ transport="tls"; } } if (transport){ belle_sip_message("Transport is not specified, using %s because UDP is not available.",transport); belle_sip_uri_set_transport_param(next_hop_uri,transport); } } }else{ #ifdef TUNNEL_ENABLED if (udplp && BELLE_SIP_OBJECT_IS_INSTANCE_OF(udplp,belle_sip_tunnel_listening_point_t)){ /* our tunnel mode only supports UDP. Force transport to be set to UDP */ belle_sip_uri_set_transport_param(next_hop_uri,"udp"); } #endif } if ((strcmp(method,"REGISTER")==0 || strcmp(method,"SUBSCRIBE")==0) && transport && (strcasecmp(transport,"TCP")==0 || strcasecmp(transport,"TLS")==0)){ /*RFC 5923: add 'alias' parameter to tell the server that we want it to keep the connection for future requests*/ belle_sip_header_via_t *via=belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(request),belle_sip_header_via_t); belle_sip_parameters_set_parameter(BELLE_SIP_PARAMETERS(via),"alias",NULL); } } client_transaction = belle_sip_provider_create_client_transaction(prov,request); belle_sip_transaction_set_application_data(BELLE_SIP_TRANSACTION(client_transaction),sal_op_ref(op)); if (op->pending_client_trans) belle_sip_object_unref(op->pending_client_trans); op->pending_client_trans=client_transaction; /*update pending inv for being able to cancel*/ belle_sip_object_ref(op->pending_client_trans); if (belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(request),belle_sip_header_user_agent_t)==NULL) belle_sip_message_add_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_HEADER(op->base.root->user_agent)); if (!belle_sip_message_get_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_AUTHORIZATION) && !belle_sip_message_get_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_PROXY_AUTHORIZATION)) { /*hmm just in case we already have authentication param in cache*/ belle_sip_provider_add_authorization(op->base.root->prov,request,NULL,NULL,NULL,op->base.realm); } result = belle_sip_client_transaction_send_request_to(client_transaction,next_hop_uri/*might be null*/); /*update call id if not set yet for this OP*/ if (result == 0 && !op->base.call_id) { op->base.call_id=ms_strdup(belle_sip_header_call_id_get_call_id(BELLE_SIP_HEADER_CALL_ID(belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(request), belle_sip_header_call_id_t)))); } return result; }
static int belle_sip_refresher_refresh_internal(belle_sip_refresher_t* refresher, int expires, int auth_mandatory, belle_sip_list_t** auth_infos, belle_sip_uri_t *requri) { belle_sip_request_t*old_request=belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(refresher->transaction)); belle_sip_response_t*old_response=belle_sip_transaction_get_response(BELLE_SIP_TRANSACTION(refresher->transaction)); belle_sip_dialog_t* dialog = refresher->dialog; belle_sip_client_transaction_t* client_transaction; belle_sip_request_t* request; belle_sip_header_expires_t* expires_header; belle_sip_uri_t* preset_route=refresher->transaction->preset_route; belle_sip_provider_t* prov=refresher->transaction->base.provider; belle_sip_header_contact_t* contact; /*first remove timer if any*/ if (expires >=0) { refresher->target_expires=expires; } else { /*-1 keep last value*/ } if (!dialog) { const belle_sip_transaction_state_t state=belle_sip_transaction_get_state(BELLE_SIP_TRANSACTION(refresher->transaction)); /*create new request*/ if (belle_sip_transaction_state_is_transient(state)) { /*operation pending, cannot update authorization headers*/ belle_sip_header_cseq_t* cseq; belle_sip_message("Refresher [%p] already has transaction [%p] in state [%s]" ,refresher ,refresher->transaction ,belle_sip_transaction_state_to_string(state)); if (strcmp(belle_sip_request_get_method(old_request),"PUBLISH")==0) { belle_sip_message("Refresher [%p] new publish is delayed to end of ongoing transaction" ,refresher); refresher->publish_pending = TRUE; return 0; } else { request=belle_sip_request_clone_with_body(belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(refresher->transaction))); cseq=belle_sip_message_get_header_by_type(request,belle_sip_header_cseq_t); belle_sip_header_cseq_set_seq_number(cseq,belle_sip_header_cseq_get_seq_number(cseq)+1); } } else { request=belle_sip_client_transaction_create_authenticated_request(refresher->transaction,auth_infos,refresher->realm); } if (requri){ /*case where we are redirected*/ belle_sip_request_set_uri(request,requri); /*remove auth headers, they are not valid for new destination*/ belle_sip_message_remove_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_AUTHORIZATION); belle_sip_message_remove_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_PROXY_AUTHORIZATION); } } else { switch (belle_sip_dialog_get_state(dialog)) { case BELLE_SIP_DIALOG_CONFIRMED: { if (belle_sip_dialog_request_pending(dialog)){ belle_sip_message("Cannot refresh now, there is a pending request in the dialog."); return -1; } request=belle_sip_dialog_create_request_from(dialog,old_request); if (strcmp(belle_sip_request_get_method(request),"SUBSCRIBE")==0) { belle_sip_header_content_type_t *content_type; /*put expire header*/ if (!(expires_header = belle_sip_message_get_header_by_type(request,belle_sip_header_expires_t))) { expires_header = belle_sip_header_expires_new(); belle_sip_message_add_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_HEADER(expires_header)); } if ((content_type = belle_sip_message_get_header_by_type(request, belle_sip_header_content_type_t)) && strcasecmp("application", belle_sip_header_content_type_get_type(content_type)) == 0 && strcasecmp("resource-lists+xml", belle_sip_header_content_type_get_subtype(content_type)) == 0) { /*rfc5367 3.2. Subsequent SUBSCRIBE Requests ... At this point, there are no semantics associated with resource-list bodies in subsequent SUBSCRIBE requests (although future extensions can define them). Therefore, UACs SHOULD NOT include resource-list bodies in subsequent SUBSCRIBE requests to a resource list server. */ belle_sip_message("Removing body, content type and content length for refresher [%p]",refresher); belle_sip_message_set_body(BELLE_SIP_MESSAGE(request), NULL, 0); belle_sip_message_remove_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_CONTENT_TYPE); belle_sip_message_remove_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_CONTENT_LENGTH); } } belle_sip_provider_add_authorization(prov,request,old_response,NULL,auth_infos,refresher->realm); break; } case BELLE_SIP_DIALOG_TERMINATED: { if (refresher->first_acknoleged_request) { char tmp[11]; belle_sip_message("Dialog [%p] is in state terminated, recreating a new one for refresher [%p]",dialog,refresher); request = refresher->first_acknoleged_request; belle_sip_header_cseq_set_seq_number(belle_sip_message_get_header_by_type(request,belle_sip_header_cseq_t) ,20); belle_sip_parameters_remove_parameter(BELLE_SIP_PARAMETERS(belle_sip_message_get_header_by_type(request,belle_sip_header_to_t)),"tag"); belle_sip_header_call_id_set_call_id( belle_sip_message_get_header_by_type(request,belle_sip_header_call_id_t) , belle_sip_random_token(tmp,sizeof(tmp))); break; } /*else nop, error case*/ } default: { belle_sip_error("Unexpected dialog state [%s] for dialog [%p], cannot refresh [%s]" ,belle_sip_dialog_state_to_string(belle_sip_dialog_get_state(dialog)) ,dialog ,belle_sip_request_get_method(old_request)); return -1; } } } if (auth_mandatory && auth_infos && belle_sip_list_find_custom(*auth_infos, unfilled_auth_info, NULL)) { belle_sip_message("Auth info not found for this refresh operation on [%p]",refresher); if (request) belle_sip_object_unref(request); return -1; } refresher->on_io_error=0; /*reset this flag*/ /*update expires in any cases*/ expires_header = belle_sip_message_get_header_by_type(request,belle_sip_header_expires_t); if (expires_header) belle_sip_header_expires_set_expires(expires_header,refresher->target_expires); contact=belle_sip_message_get_header_by_type(request,belle_sip_header_contact_t); if (contact && belle_sip_header_contact_get_expires(contact)>=0) belle_sip_header_contact_set_expires(contact,refresher->target_expires); /*update the Date header if it exists*/ { belle_sip_header_date_t *date=belle_sip_message_get_header_by_type(request,belle_sip_header_date_t); if (date){ time_t curtime=time(NULL); belle_sip_header_date_set_time(date,&curtime); } } client_transaction = belle_sip_provider_create_client_transaction(prov,request); client_transaction->base.is_internal=1; belle_sip_transaction_set_application_data(BELLE_SIP_TRANSACTION(client_transaction),refresher); if (request == refresher->first_acknoleged_request) { /*request is now ref by transaction so no need to keepo it*/ belle_sip_object_unref(refresher->first_acknoleged_request); refresher->first_acknoleged_request = NULL; } switch (belle_sip_transaction_get_state(BELLE_SIP_TRANSACTION(refresher->transaction))) { case BELLE_SIP_TRANSACTION_INIT: case BELLE_SIP_TRANSACTION_CALLING: case BELLE_SIP_TRANSACTION_TRYING: /*very early state, we can assume nobody will answer, stop retransmiting*/ belle_sip_transaction_terminate(BELLE_SIP_TRANSACTION(refresher->transaction)); break; default: /*we preserve the transaction "as is"*/ break; } /*update reference transaction for next refresh*/ belle_sip_object_unref(refresher->transaction); refresher->transaction=client_transaction; belle_sip_object_ref(refresher->transaction); if (belle_sip_client_transaction_send_request_to(client_transaction,requri?requri:preset_route)) { /*send imediatly to requri in case of redirect*/ belle_sip_error("Cannot send refresh method [%s] for refresher [%p]" ,belle_sip_request_get_method(request) ,refresher); return -1; } if (expires==0) belle_sip_refresher_stop_internal(refresher,0); /*unregister transaction must be preserved*/ return 0; }
static void process_request_event(void *op_base, const belle_sip_request_event_t *event) { SalOp* op = (SalOp*)op_base; belle_sip_server_transaction_t* server_transaction=NULL; belle_sdp_session_description_t* sdp; belle_sip_request_t* req = belle_sip_request_event_get_request(event); belle_sip_dialog_state_t dialog_state; belle_sip_response_t* resp; belle_sip_header_t* call_info; const char *method=belle_sip_request_get_method(req); bool_t is_update=FALSE; if (strcmp("ACK",method)!=0){ /*ACK does'nt create srv transaction*/ server_transaction = belle_sip_provider_create_server_transaction(op->base.root->prov,belle_sip_request_event_get_request(event)); belle_sip_object_ref(server_transaction); belle_sip_transaction_set_application_data(BELLE_SIP_TRANSACTION(server_transaction),sal_op_ref(op)); } if (strcmp("INVITE",method)==0) { if (op->pending_server_trans) belle_sip_object_unref(op->pending_server_trans); /*updating pending invite transaction*/ op->pending_server_trans=server_transaction; belle_sip_object_ref(op->pending_server_trans); } if (strcmp("UPDATE",method)==0) { if (op->pending_update_server_trans) belle_sip_object_unref(op->pending_update_server_trans); /*updating pending update transaction*/ op->pending_update_server_trans=server_transaction; belle_sip_object_ref(op->pending_update_server_trans); } if (!op->dialog) { set_or_update_dialog(op,belle_sip_provider_create_dialog(op->base.root->prov,BELLE_SIP_TRANSACTION(op->pending_server_trans))); ms_message("new incoming call from [%s] to [%s]",sal_op_get_from(op),sal_op_get_to(op)); } dialog_state=belle_sip_dialog_get_state(op->dialog); switch(dialog_state) { case BELLE_SIP_DIALOG_NULL: { if (strcmp("INVITE",method)==0) { if (!op->replaces && (op->replaces=belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(req),belle_sip_header_replaces_t))) { belle_sip_object_ref(op->replaces); } else if(op->replaces) { ms_warning("replace header already set"); } if (process_sdp_for_invite(op,req) == 0) { if ((call_info=belle_sip_message_get_header(BELLE_SIP_MESSAGE(req),"Call-Info"))) { if( strstr(belle_sip_header_get_unparsed_value(call_info),"answer-after=") != NULL) { op->auto_answer_asked=TRUE; ms_message("The caller asked to automatically answer the call(Emergency?)\n"); } } op->base.root->callbacks.call_received(op); } break; } /* else same behavior as for EARLY state*/ } case BELLE_SIP_DIALOG_EARLY: { //hmm probably a cancel if (strcmp("CANCEL",method)==0) { if(belle_sip_request_event_get_server_transaction(event)) { /*first answer 200 ok to cancel*/ belle_sip_server_transaction_send_response(server_transaction ,sal_op_create_response_from_request(op,req,200)); /*terminate invite transaction*/ call_terminated(op ,op->pending_server_trans ,belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(op->pending_server_trans)),487); } else { /*call leg does not exist*/ belle_sip_server_transaction_send_response(server_transaction ,sal_op_create_response_from_request(op,req,481)); } } else if (strcmp("PRACK",method)==0) { resp=sal_op_create_response_from_request(op,req,200); belle_sip_server_transaction_send_response(server_transaction,resp); } else if (strcmp("UPDATE",method)==0) { sal_op_reset_descriptions(op); if (process_sdp_for_invite(op,req)==0) op->base.root->callbacks.call_updating(op,TRUE); } else { belle_sip_error("Unexpected method [%s] for dialog state BELLE_SIP_DIALOG_EARLY",belle_sip_request_get_method(req)); unsupported_method(server_transaction,req); } break; } case BELLE_SIP_DIALOG_CONFIRMED: /*great ACK received*/ if (strcmp("ACK",method)==0) { if (op->sdp_offering){ SalReason reason; if (extract_sdp(op,BELLE_SIP_MESSAGE(req),&sdp,&reason)==0){ if (sdp){ if (op->base.remote_media) sal_media_description_unref(op->base.remote_media); op->base.remote_media=sal_media_description_new(); sdp_to_media_description(sdp,op->base.remote_media); sdp_process(op); belle_sip_object_unref(sdp); }else{ ms_warning("SDP expected in ACK but not found."); } } } op->base.root->callbacks.call_ack(op); } else if(strcmp("BYE",method)==0) { resp=sal_op_create_response_from_request(op,req,200); belle_sip_server_transaction_send_response(server_transaction,resp); op->base.root->callbacks.call_terminated(op,op->dir==SalOpDirIncoming?sal_op_get_from(op):sal_op_get_to(op)); op->state=SalOpStateTerminating; /*call end not notified by dialog deletion because transaction can end before dialog*/ } else if(strcmp("INVITE",method)==0 || (is_update=(strcmp("UPDATE",method)==0)) ) { if (is_update && !belle_sip_message_get_body(BELLE_SIP_MESSAGE(req))) { /*session timer case*/ /*session expire should be handled. to be done when real session timer (rfc4028) will be implemented*/ resp=sal_op_create_response_from_request(op,req,200); belle_sip_server_transaction_send_response(server_transaction,resp); belle_sip_object_unref(op->pending_update_server_trans); op->pending_update_server_trans=NULL; } else { /*re-invite*/ sal_op_reset_descriptions(op); if (process_sdp_for_invite(op,req)==0) op->base.root->callbacks.call_updating(op,is_update); } } else if (strcmp("INFO",method)==0){ if (belle_sip_message_get_body(BELLE_SIP_MESSAGE(req)) && strstr(belle_sip_message_get_body(BELLE_SIP_MESSAGE(req)),"picture_fast_update")) { /*vfu request*/ ms_message("Receiving VFU request on op [%p]",op); if (op->base.root->callbacks.vfu_request){ op->base.root->callbacks.vfu_request(op); } }else{ SalBody salbody; if (sal_op_get_body(op,(belle_sip_message_t*)req,&salbody)) { if (sal_body_has_type(&salbody,"application","dtmf-relay")){ char tmp[10]; if (sal_lines_get_value(salbody.data, "Signal",tmp, sizeof(tmp))){ op->base.root->callbacks.dtmf_received(op,tmp[0]); } }else op->base.root->callbacks.info_received(op,&salbody); } else { op->base.root->callbacks.info_received(op,NULL); } } resp=sal_op_create_response_from_request(op,req,200); belle_sip_server_transaction_send_response(server_transaction,resp); }else if (strcmp("REFER",method)==0) { sal_op_process_refer(op,event,server_transaction); } else if (strcmp("NOTIFY",method)==0) { sal_op_call_process_notify(op,event,server_transaction); } else if (strcmp("OPTIONS",method)==0) { resp=sal_op_create_response_from_request(op,req,200); belle_sip_server_transaction_send_response(server_transaction,resp); } else if (strcmp("CANCEL",method)==0) { /*call leg does not exist because 200ok already sent*/ belle_sip_server_transaction_send_response(server_transaction,sal_op_create_response_from_request(op,req,481)); } else if (strcmp("MESSAGE",method)==0){ sal_process_incoming_message(op,event); }else{ ms_error("unexpected method [%s] for dialog [%p]",belle_sip_request_get_method(req),op->dialog); unsupported_method(server_transaction,req); } break; default: ms_error("unexpected dialog state [%s]",belle_sip_dialog_state_to_string(dialog_state)); break; } if (server_transaction) belle_sip_object_unref(server_transaction); }
static void process_request_event(void *op_base, const belle_sip_request_event_t *event) { SalOp* op = (SalOp*)op_base; belle_sip_server_transaction_t* server_transaction=NULL; belle_sdp_session_description_t* sdp; belle_sip_request_t* req = belle_sip_request_event_get_request(event); belle_sip_dialog_state_t dialog_state; belle_sip_response_t* resp; belle_sip_header_t* call_info; if (strcmp("ACK",belle_sip_request_get_method(req))!=0){ /*ACK does'nt create srv transaction*/ server_transaction = belle_sip_provider_create_server_transaction(op->base.root->prov,belle_sip_request_event_get_request(event)); belle_sip_object_ref(server_transaction); belle_sip_transaction_set_application_data(BELLE_SIP_TRANSACTION(server_transaction),op); sal_op_ref(op); } if (strcmp("INVITE",belle_sip_request_get_method(req))==0) { if (op->pending_server_trans) belle_sip_object_unref(op->pending_server_trans); /*updating pending invite transaction*/ op->pending_server_trans=server_transaction; belle_sip_object_ref(op->pending_server_trans); } if (!op->dialog) { set_or_update_dialog(op,belle_sip_provider_create_dialog(op->base.root->prov,BELLE_SIP_TRANSACTION(op->pending_server_trans))); ms_message("new incoming call from [%s] to [%s]",sal_op_get_from(op),sal_op_get_to(op)); } dialog_state=belle_sip_dialog_get_state(op->dialog); switch(dialog_state) { case BELLE_SIP_DIALOG_NULL: { if (strcmp("INVITE",belle_sip_request_get_method(req))==0) { if (!op->replaces && (op->replaces=belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(req),belle_sip_header_replaces_t))) { belle_sip_object_ref(op->replaces); } else if(op->replaces) { ms_warning("replace header already set"); } process_sdp_for_invite(op,req); if ((call_info=belle_sip_message_get_header(BELLE_SIP_MESSAGE(req),"Call-Info"))) { if( strstr(belle_sip_header_extension_get_value(BELLE_SIP_HEADER_EXTENSION(call_info)),"answer-after=") != NULL) { op->auto_answer_asked=TRUE; ms_message("The caller asked to automatically answer the call(Emergency?)\n"); } } op->base.root->callbacks.call_received(op); break; } /* else same behavior as for EARLY state*/ } case BELLE_SIP_DIALOG_EARLY: { //hmm probably a cancel if (strcmp("CANCEL",belle_sip_request_get_method(req))==0) { if(belle_sip_request_event_get_server_transaction(event)) { /*first answer 200 ok to cancel*/ belle_sip_server_transaction_send_response(server_transaction ,sal_op_create_response_from_request(op,req,200)); /*terminate invite transaction*/ call_terminated(op ,op->pending_server_trans ,belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(op->pending_server_trans)),487); } else { /*call leg does not exist*/ belle_sip_server_transaction_send_response(server_transaction ,sal_op_create_response_from_request(op,req,481)); } } else if (strcmp("PRACK",belle_sip_request_get_method(req))==0) { resp=sal_op_create_response_from_request(op,req,200); belle_sip_server_transaction_send_response(server_transaction,resp); } else { belle_sip_error("Unexpected method [%s] for dialog state BELLE_SIP_DIALOG_EARLY",belle_sip_request_get_method(req)); unsupported_method(server_transaction,req); } break; } case BELLE_SIP_DIALOG_CONFIRMED: /*great ACK received*/ if (strcmp("ACK",belle_sip_request_get_method(req))==0) { if (op->sdp_offering){ if ((sdp=belle_sdp_session_description_create(BELLE_SIP_MESSAGE(req)))){ if (op->base.remote_media) sal_media_description_unref(op->base.remote_media); op->base.remote_media=sal_media_description_new(); sdp_to_media_description(sdp,op->base.remote_media); sdp_process(op); belle_sip_object_unref(sdp); } } /*FIXME if (op->reinvite){ op->reinvite=FALSE; }*/ op->base.root->callbacks.call_ack(op); } else if(strcmp("BYE",belle_sip_request_get_method(req))==0) { resp=sal_op_create_response_from_request(op,req,200); belle_sip_server_transaction_send_response(server_transaction,resp); op->base.root->callbacks.call_terminated(op,op->dir==SalOpDirIncoming?sal_op_get_from(op):sal_op_get_to(op)); op->state=SalOpStateTerminating; /*call end not notified by dialog deletion because transaction can end before dialog*/ } else if(strcmp("INVITE",belle_sip_request_get_method(req))==0) { /*re-invite*/ if (op->base.remote_media){ sal_media_description_unref(op->base.remote_media); op->base.remote_media=NULL; } if (op->result){ sal_media_description_unref(op->result); op->result=NULL; } process_sdp_for_invite(op,req); op->base.root->callbacks.call_updating(op); } else if (strcmp("INFO",belle_sip_request_get_method(req))==0){ if (belle_sip_message_get_body(BELLE_SIP_MESSAGE(req)) && strstr(belle_sip_message_get_body(BELLE_SIP_MESSAGE(req)),"picture_fast_update")) { /*vfu request*/ ms_message("Receiving VFU request on op [%p]",op); if (op->base.root->callbacks.vfu_request){ op->base.root->callbacks.vfu_request(op); } }else{ SalBody salbody; if (sal_op_get_body(op,(belle_sip_message_t*)req,&salbody)) { op->base.root->callbacks.info_received(op,&salbody); } else { op->base.root->callbacks.info_received(op,NULL); } } resp=sal_op_create_response_from_request(op,req,200); belle_sip_server_transaction_send_response(server_transaction,resp); }else if (strcmp("REFER",belle_sip_request_get_method(req))==0) { sal_op_process_refer(op,event,server_transaction); } else if (strcmp("NOTIFY",belle_sip_request_get_method(req))==0) { sal_op_call_process_notify(op,event,server_transaction); } else if (strcmp("OPTIONS",belle_sip_request_get_method(req))==0) { resp=sal_op_create_response_from_request(op,req,200); belle_sip_server_transaction_send_response(server_transaction,resp); } else if (strcmp("CANCEL",belle_sip_request_get_method(req))==0) { /*call leg does not exist because 200ok already sent*/ belle_sip_server_transaction_send_response( server_transaction ,sal_op_create_response_from_request(op,req,481)); } else{ ms_error("unexpected method [%s] for dialog [%p]",belle_sip_request_get_method(req),op->dialog); unsupported_method(server_transaction,req); } break; default: { ms_error("unexpected dialog state [%s]",belle_sip_dialog_state_to_string(dialog_state)); } /* no break */ } if (server_transaction) belle_sip_object_unref(server_transaction); }