/* It is RECOMMENDED to only cancel INVITE request */ int generating_cancel (osip_message_t ** dest, osip_message_t * request_cancelled) { int i; osip_message_t *request; i = osip_message_init (&request); if (i != 0) return i; /* prepare the request-line */ osip_message_set_method (request, osip_strdup ("CANCEL")); osip_message_set_version (request, osip_strdup ("SIP/2.0")); osip_message_set_status_code (request, 0); osip_message_set_reason_phrase (request, NULL); i = osip_uri_clone (request_cancelled->req_uri, &(request->req_uri)); if (i != 0) { osip_message_free (request); *dest = NULL; return i; } i = osip_to_clone (request_cancelled->to, &(request->to)); if (i != 0) { osip_message_free (request); *dest = NULL; return i; } i = osip_from_clone (request_cancelled->from, &(request->from)); if (i != 0) { osip_message_free (request); *dest = NULL; return i; } /* set the cseq and call_id header */ i = osip_call_id_clone (request_cancelled->call_id, &(request->call_id)); if (i != 0) { osip_message_free (request); *dest = NULL; return i; } i = osip_cseq_clone (request_cancelled->cseq, &(request->cseq)); if (i != 0) { osip_message_free (request); *dest = NULL; return i; } osip_free (request->cseq->method); request->cseq->method = osip_strdup ("CANCEL"); if (request->cseq->method == NULL) { osip_message_free (request); *dest = NULL; return OSIP_NOMEM; } /* copy ONLY the top most Via Field (this method is also used by proxy) */ { osip_via_t *via; osip_via_t *via2; i = osip_message_get_via (request_cancelled, 0, &via); if (i < 0) { osip_message_free (request); *dest = NULL; return i; } i = osip_via_clone (via, &via2); if (i != 0) { osip_message_free (request); *dest = NULL; return i; } osip_list_add (&request->vias, via2, -1); } /* add the same route-set than in the previous request */ { int pos = 0; osip_route_t *route; osip_route_t *route2; while (!osip_list_eol (&request_cancelled->routes, pos)) { route = (osip_route_t *) osip_list_get (&request_cancelled->routes, pos); i = osip_route_clone (route, &route2); if (i != 0) { osip_message_free (request); *dest = NULL; return i; } osip_list_add (&request->routes, route2, -1); pos++; } } osip_message_set_max_forwards (request, "70"); /* a UA should start a request with 70 */ osip_message_set_user_agent (request, eXosip.user_agent); *dest = request; return OSIP_SUCCESS; }
osip_message_t *ict_create_ack(osip_transaction_t * ict, osip_message_t * response) { int i; osip_message_t *ack; i = osip_message_init(&ack); if (i != 0) return NULL; /* Section 17.1.1.3: Construction of the ACK request: */ i = osip_from_clone(response->from, &(ack->from)); if (i != 0) { osip_message_free(ack); return NULL; } i = osip_to_clone(response->to, &(ack->to)); /* include the tag! */ if (i != 0) { osip_message_free(ack); return NULL; } i = osip_call_id_clone(response->call_id, &(ack->call_id)); if (i != 0) { osip_message_free(ack); return NULL; } i = osip_cseq_clone(response->cseq, &(ack->cseq)); if (i != 0) { osip_message_free(ack); return NULL; } osip_free(ack->cseq->method); ack->cseq->method = osip_strdup("ACK"); if (ack->cseq->method == NULL) { osip_message_free(ack); return NULL; } ack->sip_method = (char *) osip_malloc(5); if (ack->sip_method == NULL) { osip_message_free(ack); return NULL; } sprintf(ack->sip_method, "ACK"); ack->sip_version = osip_strdup(ict->orig_request->sip_version); if (ack->sip_version == NULL) { osip_message_free(ack); return NULL; } ack->status_code = 0; ack->reason_phrase = NULL; /* MUST copy REQUEST-URI from Contact header! */ i = osip_uri_clone(ict->orig_request->req_uri, &(ack->req_uri)); if (i != 0) { osip_message_free(ack); return NULL; } /* ACK MUST contain only the TOP Via field from original request */ { osip_via_t *via; osip_via_t *orig_via; osip_message_get_via(ict->orig_request, 0, &orig_via); if (orig_via == NULL) { osip_message_free(ack); return NULL; } i = osip_via_clone(orig_via, &via); if (i != 0) { osip_message_free(ack); return NULL; } osip_list_add(&ack->vias, via, -1); } /* ack MUST contains the ROUTE headers field from the original request */ /* IS IT TRUE??? */ /* if the answers contains a set of route (or record route), then it */ /* should be used instead?? ......May be not..... */ { int pos = 0; osip_route_t *route; osip_route_t *orig_route; while (!osip_list_eol(&ict->orig_request->routes, pos)) { orig_route = (osip_route_t *) osip_list_get(&ict->orig_request->routes, pos); i = osip_route_clone(orig_route, &route); if (i != 0) { osip_message_free(ack); return NULL; } osip_list_add(&ack->routes, route, -1); pos++; } } /* may be we could add some other headers: */ /* For example "Max-Forward" */ return ack; }
static int dialog_fill_route_set (osip_dialog_t * dialog, osip_message_t * request) { /* if the pre-existing route set contains a "lr" (compliance with bis-08) then the req_uri should contains the remote target URI */ int i; int pos = 0; osip_uri_param_t *lr_param; osip_route_t *route; char *last_route; /* AMD bug: fixed 17/06/2002 */ route = (osip_route_t *) osip_list_get (&dialog->route_set, 0); osip_uri_uparam_get_byname (route->url, "lr", &lr_param); if (lr_param != NULL) /* the remote target URI is the req_uri! */ { i = osip_uri_clone (dialog->remote_contact_uri->url, &(request->req_uri)); if (i != 0) return i; /* "[request] MUST includes a Route header field containing the route set values in order." */ /* AMD bug: fixed 17/06/2002 */ pos = 0; /* first element is at index 0 */ while (!osip_list_eol (&dialog->route_set, pos)) { osip_route_t *route2; route = osip_list_get (&dialog->route_set, pos); i = osip_route_clone (route, &route2); if (i != 0) return i; osip_list_add (&request->routes, route2, -1); pos++; } return OSIP_SUCCESS; } /* if the first URI of route set does not contain "lr", the req_uri is set to the first uri of route set */ i = osip_uri_clone (route->url, &(request->req_uri)); if (i != 0) return i; /* add the route set */ /* "The UAC MUST add a route header field containing the remainder of the route set values in order. */ pos = 0; /* yes it is */ while (!osip_list_eol (&dialog->route_set, pos)) /* not the first one in the list */ { osip_route_t *route2; route = osip_list_get (&dialog->route_set, pos); i = osip_route_clone (route, &route2); if (i != 0) return i; if (!osip_list_eol (&dialog->route_set, pos + 1)) osip_list_add (&request->routes, route2, -1); else osip_route_free (route2); pos++; } /* The UAC MUST then place the remote target URI into the route header field as the last value */ i = osip_uri_to_str (dialog->remote_contact_uri->url, &last_route); if (i != 0) return i; i = osip_message_set_route (request, last_route); osip_free (last_route); if (i != 0) { return i; } /* route header and req_uri set */ return OSIP_SUCCESS; }
int osip_message_clone (const osip_message_t * sip, osip_message_t ** dest) { osip_message_t *copy; int pos = 0; int i; if (sip == NULL) return -1; *dest = NULL; i = osip_message_init (©); if (i != 0) return -1; copy->sip_method = osip_strdup (sip->sip_method); copy->sip_version = osip_strdup (sip->sip_version); copy->status_code = sip->status_code; copy->reason_phrase = osip_strdup (sip->reason_phrase); if (sip->req_uri != NULL) { i = osip_uri_clone (sip->req_uri, &(copy->req_uri)); if (i != 0) goto mc_error1; } { osip_accept_t *accept; osip_accept_t *accept2; pos = 0; while (!osip_list_eol (&sip->accepts, pos)) { accept = (osip_accept_t *) osip_list_get (&sip->accepts, pos); i = osip_accept_clone (accept, &accept2); if (i != 0) goto mc_error1; osip_list_add (©->accepts, accept2, -1); /* insert as last element */ pos++; } } { osip_accept_encoding_t *accept_encoding; osip_accept_encoding_t *accept_encoding2; pos = 0; while (!osip_list_eol (&sip->accept_encodings, pos)) { accept_encoding = (osip_accept_encoding_t *) osip_list_get (&sip->accept_encodings, pos); i = osip_accept_encoding_clone (accept_encoding, &accept_encoding2); if (i != 0) goto mc_error1; osip_list_add (©->accept_encodings, accept_encoding2, -1); pos++; } } { osip_accept_language_t *accept_language; osip_accept_language_t *accept_language2; pos = 0; while (!osip_list_eol (&sip->accept_languages, pos)) { accept_language = (osip_accept_language_t *) osip_list_get (&sip->accept_languages, pos); i = osip_accept_language_clone (accept_language, &accept_language2); if (i != 0) goto mc_error1; osip_list_add (©->accept_languages, accept_language2, -1); pos++; } } { osip_alert_info_t *alert_info; osip_alert_info_t *alert_info2; pos = 0; while (!osip_list_eol (&sip->alert_infos, pos)) { alert_info = (osip_alert_info_t *) osip_list_get (&sip->alert_infos, pos); i = osip_alert_info_clone (alert_info, &alert_info2); if (i != 0) goto mc_error1; osip_list_add (©->alert_infos, alert_info2, -1); pos++; } } { osip_allow_t *allow; osip_allow_t *allow2; pos = 0; while (!osip_list_eol (&sip->allows, pos)) { allow = (osip_allow_t *) osip_list_get (&sip->allows, pos); i = osip_allow_clone (allow, &allow2); if (i != 0) goto mc_error1; osip_list_add (©->allows, allow2, -1); pos++; } } { osip_authentication_info_t *authentication_info; osip_authentication_info_t *authentication_info2; pos = 0; while (!osip_list_eol (&sip->authentication_infos, pos)) { authentication_info = (osip_authentication_info_t *) osip_list_get (&sip-> authentication_infos, pos); i = osip_authentication_info_clone (authentication_info, &authentication_info2); if (i != 0) goto mc_error1; osip_list_add (©->authentication_infos, authentication_info2, -1); pos++; } } { osip_authorization_t *authorization; osip_authorization_t *authorization2; pos = 0; while (!osip_list_eol (&sip->authorizations, pos)) { authorization = (osip_authorization_t *) osip_list_get (&sip->authorizations, pos); i = osip_authorization_clone (authorization, &authorization2); if (i != 0) goto mc_error1; osip_list_add (©->authorizations, authorization2, -1); pos++; } } if (sip->call_id != NULL) { i = osip_call_id_clone (sip->call_id, &(copy->call_id)); if (i != 0) goto mc_error1; } { osip_call_info_t *call_info; osip_call_info_t *call_info2; pos = 0; while (!osip_list_eol (&sip->call_infos, pos)) { call_info = (osip_call_info_t *) osip_list_get (&sip->call_infos, pos); i = osip_call_info_clone (call_info, &call_info2); if (i != 0) goto mc_error1; osip_list_add (©->call_infos, call_info2, -1); pos++; } } { osip_contact_t *contact; osip_contact_t *contact2; pos = 0; while (!osip_list_eol (&sip->contacts, pos)) { contact = (osip_contact_t *) osip_list_get (&sip->contacts, pos); i = osip_contact_clone (contact, &contact2); if (i != 0) goto mc_error1; osip_list_add (©->contacts, contact2, -1); pos++; } } { osip_content_encoding_t *content_encoding; osip_content_encoding_t *content_encoding2; pos = 0; while (!osip_list_eol (&sip->content_encodings, pos)) { content_encoding = (osip_content_encoding_t *) osip_list_get (&sip->content_encodings, pos); i = osip_content_encoding_clone (content_encoding, &content_encoding2); if (i != 0) goto mc_error1; osip_list_add (©->content_encodings, content_encoding2, -1); pos++; } } if (sip->content_length != NULL) { i = osip_content_length_clone (sip->content_length, &(copy->content_length)); if (i != 0) goto mc_error1; } if (sip->content_type != NULL) { i = osip_content_type_clone (sip->content_type, &(copy->content_type)); if (i != 0) goto mc_error1; } if (sip->cseq != NULL) { i = osip_cseq_clone (sip->cseq, &(copy->cseq)); if (i != 0) goto mc_error1; } { osip_error_info_t *error_info; osip_error_info_t *error_info2; pos = 0; while (!osip_list_eol (&sip->error_infos, pos)) { error_info = (osip_error_info_t *) osip_list_get (&sip->error_infos, pos); i = osip_error_info_clone (error_info, &error_info2); if (i != 0) goto mc_error1; osip_list_add (©->error_infos, error_info2, -1); pos++; } } if (sip->from != NULL) { i = osip_from_clone (sip->from, &(copy->from)); if (i != 0) goto mc_error1; } if (sip->mime_version != NULL) { i = osip_mime_version_clone (sip->mime_version, &(copy->mime_version)); if (i != 0) goto mc_error1; } { osip_proxy_authenticate_t *proxy_authenticate; osip_proxy_authenticate_t *proxy_authenticate2; pos = 0; while (!osip_list_eol (&sip->proxy_authenticates, pos)) { proxy_authenticate = (osip_proxy_authenticate_t *) osip_list_get (&sip-> proxy_authenticates, pos); i = osip_proxy_authenticate_clone (proxy_authenticate, &proxy_authenticate2); if (i != 0) goto mc_error1; osip_list_add (©->proxy_authenticates, proxy_authenticate2, -1); pos++; } } { osip_proxy_authentication_info_t *proxy_authentication_info; osip_proxy_authentication_info_t *proxy_authentication_info2; pos = 0; while (!osip_list_eol (&sip->proxy_authentication_infos, pos)) { proxy_authentication_info = (osip_proxy_authentication_info_t *) osip_list_get (&sip-> proxy_authentication_infos, pos); i = osip_proxy_authentication_info_clone (proxy_authentication_info, &proxy_authentication_info2); if (i != 0) goto mc_error1; osip_list_add (©->proxy_authentication_infos, proxy_authentication_info2, -1); pos++; } } { osip_proxy_authorization_t *proxy_authorization; osip_proxy_authorization_t *proxy_authorization2; pos = 0; while (!osip_list_eol (&sip->proxy_authorizations, pos)) { proxy_authorization = (osip_proxy_authorization_t *) osip_list_get (&sip-> proxy_authorizations, pos); i = osip_proxy_authorization_clone (proxy_authorization, &proxy_authorization2); if (i != 0) goto mc_error1; osip_list_add (©->proxy_authorizations, proxy_authorization2, -1); pos++; } } { osip_record_route_t *record_route; osip_record_route_t *record_route2; pos = 0; while (!osip_list_eol (&sip->record_routes, pos)) { record_route = (osip_record_route_t *) osip_list_get (&sip->record_routes, pos); i = osip_record_route_clone (record_route, &record_route2); if (i != 0) goto mc_error1; osip_list_add (©->record_routes, record_route2, -1); pos++; } } { osip_route_t *route; osip_route_t *route2; pos = 0; while (!osip_list_eol (&sip->routes, pos)) { route = (osip_route_t *) osip_list_get (&sip->routes, pos); i = osip_route_clone (route, &route2); if (i != 0) goto mc_error1; osip_list_add (©->routes, route2, -1); pos++; } } if (sip->to != NULL) { i = osip_to_clone (sip->to, &(copy->to)); if (i != 0) goto mc_error1; } { osip_via_t *via; osip_via_t *via2; pos = 0; while (!osip_list_eol (&sip->vias, pos)) { via = (osip_via_t *) osip_list_get (&sip->vias, pos); i = osip_via_clone (via, &via2); if (i != 0) goto mc_error1; osip_list_add (©->vias, via2, -1); pos++; } } { osip_www_authenticate_t *www_authenticate; osip_www_authenticate_t *www_authenticate2; pos = 0; while (!osip_list_eol (&sip->www_authenticates, pos)) { www_authenticate = (osip_www_authenticate_t *) osip_list_get (&sip->www_authenticates, pos); i = osip_www_authenticate_clone (www_authenticate, &www_authenticate2); if (i != 0) goto mc_error1; osip_list_add (©->www_authenticates, www_authenticate2, -1); pos++; } } { osip_header_t *header; osip_header_t *header2; pos = 0; while (!osip_list_eol (&sip->headers, pos)) { header = (osip_header_t *) osip_list_get (&sip->headers, pos); i = osip_header_clone (header, &header2); if (i != 0) goto mc_error1; osip_list_add (©->headers, header2, -1); pos++; } } { osip_body_t *body; osip_body_t *body2; pos = 0; while (!osip_list_eol (&sip->bodies, pos)) { body = (osip_body_t *) osip_list_get (&sip->bodies, pos); i = osip_body_clone (body, &body2); if (i != 0) goto mc_error1; osip_list_add (©->bodies, body2, -1); pos++; } } copy->message_length = sip->message_length; copy->message = osip_strdup (sip->message); copy->message_property = sip->message_property; *dest = copy; return 0; mc_error1: osip_message_free (copy); return -1; }