9  * RFC 6763 - DNS-Based Service Discovery\n
129 /* Lookup for service types */
131 /* Lookup for instances of service */
133 /* Lookup for location of service instance */
135 /* Lookup for text info on service instance */
143 /** Description of a service */
147   /** Name of service, like 'myweb' */
149   /** Type of service, like '_http' */
150   char service[MDNS_LABEL_MAXLEN + 1];  member
159   /** Port of the service */
234   /* Reply bitmask per service */
438  * @param service The service to build TXT record for
441 mdns_prepare_txtdata(struct mdns_service *service)  in mdns_prepare_txtdata()  argument
443   memset(&service->txtdata, 0, sizeof(struct mdns_domain));  in mdns_prepare_txtdata()
444   if (service->txt_fn) {  in mdns_prepare_txtdata()
445     service->txt_fn(service, service->txt_userdata);  in mdns_prepare_txtdata()
578  * Build domain name for a service
580  * @param service The service struct, containing service name, type and protocol
581  * @param include_name Whether to include the service name in the domain
582  * @return ERR_OK if domain was written. If service name is included,
587 mdns_build_service_domain(struct mdns_domain *domain, struct mdns_service *service, int include_nam…  in mdns_build_service_domain()  argument
592     res = mdns_domain_add_label(domain, service->name, (u8_t)strlen(service->name));  in mdns_build_service_domain()
595   res = mdns_domain_add_label(domain, service->service, (u8_t)strlen(service->service));  in mdns_build_service_domain()
597 …res = mdns_domain_add_label(domain, dnssd_protos[service->proto], (u8_t)strlen(dnssd_protos[servic…  in mdns_build_service_domain()
672  * Check which replies we should send for a service based on question
673  * @param service A registered MDNS service
678 check_service(struct mdns_service *service, struct mdns_rr_info *rr)  in check_service()  argument
692     /* Request for all service types */  in check_service()
696   res = mdns_build_service_domain(&mydomain, service, 0);  in check_service()
699     /* Request for the instance of my service */  in check_service()
703   res = mdns_build_service_domain(&mydomain, service, 1);  in check_service()
705     /* Request for info about my service */  in check_service()
1158 mdns_add_servicetype_ptr_answer(struct mdns_outpacket *reply, struct mdns_service *service)  in mdns_add_servicetype_ptr_answer()  argument
1161   mdns_build_service_domain(&service_type, service, 0);  in mdns_add_servicetype_ptr_answer()
1163   LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with service type PTR record\n"));  in mdns_add_servicetype_ptr_answer()
1164 …return mdns_add_answer(reply, &service_dnssd, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, 0, service->dns_ttl,…  in mdns_add_servicetype_ptr_answer()
1169 mdns_add_servicename_ptr_answer(struct mdns_outpacket *reply, struct mdns_service *service)  in mdns_add_servicename_ptr_answer()  argument
1172   mdns_build_service_domain(&service_type, service, 0);  in mdns_add_servicename_ptr_answer()
1173   mdns_build_service_domain(&service_instance, service, 1);  in mdns_add_servicename_ptr_answer()
1174   LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Responding with service name PTR record\n"));  in mdns_add_servicename_ptr_answer()
1175 …return mdns_add_answer(reply, &service_type, DNS_RRTYPE_PTR, DNS_RRCLASS_IN, 0, service->dns_ttl, …  in mdns_add_servicename_ptr_answer()
1180 …uct mdns_outpacket *reply, u16_t cache_flush, struct mdns_host *mdns, struct mdns_service *service)  in mdns_add_srv_answer()  argument
1184   mdns_build_service_domain(&service_instance, service, 1);  in mdns_add_srv_answer()
1195   srvdata[2] = lwip_htons(service->port);  in mdns_add_srv_answer()
1197 …add_answer(reply, &service_instance, DNS_RRTYPE_SRV, DNS_RRCLASS_IN, cache_flush, service->dns_ttl,  in mdns_add_srv_answer()
1203 mdns_add_txt_answer(struct mdns_outpacket *reply, u16_t cache_flush, struct mdns_service *service)  in mdns_add_txt_answer()  argument
1206   mdns_build_service_domain(&service_instance, service, 1);  in mdns_add_txt_answer()
1207   mdns_prepare_txtdata(service);  in mdns_add_txt_answer()
1209 …add_answer(reply, &service_instance, DNS_RRTYPE_TXT, DNS_RRCLASS_IN, cache_flush, service->dns_ttl,  in mdns_add_txt_answer()
1210                          (u8_t *) &service->txtdata.name, service->txtdata.length, NULL);  in mdns_add_txt_answer()
1253   struct mdns_service *service;  in mdns_send_outpacket()  local
1305   /* Write answers to service questions */  in mdns_send_outpacket()
1307     service = mdns->services[i];  in mdns_send_outpacket()
1308     if (!service) {  in mdns_send_outpacket()
1313       res = mdns_add_servicetype_ptr_answer(outpkt, service);  in mdns_send_outpacket()
1321       res = mdns_add_servicename_ptr_answer(outpkt, service);  in mdns_send_outpacket()
1329       res = mdns_add_srv_answer(outpkt, outpkt->cache_flush, mdns, service);  in mdns_send_outpacket()
1337       res = mdns_add_txt_answer(outpkt, outpkt->cache_flush, service);  in mdns_send_outpacket()
1347     service = mdns->services[i];  in mdns_send_outpacket()
1348     if (!service) {  in mdns_send_outpacket()
1353       /* Our service instance requested, include SRV & TXT  in mdns_send_outpacket()
1356         res = mdns_add_srv_answer(outpkt, outpkt->cache_flush, mdns, service);  in mdns_send_outpacket()
1364         res = mdns_add_txt_answer(outpkt, outpkt->cache_flush, service);  in mdns_send_outpacket()
1372     /* If service instance, SRV, record or an IP address is requested,  in mdns_send_outpacket()
1496   struct mdns_service *service;  in mdns_handle_question()  local
1527       service = mdns->services[i];  in mdns_handle_question()
1528       if (!service) {  in mdns_handle_question()
1531       reply.serv_replies[i] |= check_service(service, &q.info);  in mdns_handle_question()
1617       service = mdns->services[i];  in mdns_handle_question()
1618       if (!service) {  in mdns_handle_question()
1621       match = reply.serv_replies[i] & check_service(service, &ans.info);  in mdns_handle_question()
1622       if (match && (ans.ttl > (service->dns_ttl / 2))) {  in mdns_handle_question()
1634               res = mdns_build_service_domain(&my_ans, service, 0);  in mdns_handle_question()
1636                 LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: service type PTR\n"));  in mdns_handle_question()
1641               res = mdns_build_service_domain(&my_ans, service, 1);  in mdns_handle_question()
1643                 LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Skipping known answer: service name PTR\n"));  in mdns_handle_question()
1668             if (len != sizeof(field16) || lwip_ntohs(field16) != service->port) {  in mdns_handle_question()
1682           mdns_prepare_txtdata(service);  in mdns_handle_question()
1683           if (service->txtdata.length == ans.rd_length &&  in mdns_handle_question()
1684               pbuf_memcmp(pkt->pbuf, ans.rd_offset, service->txtdata.name, ans.rd_length) == 0) {  in mdns_handle_question()
1926     struct mdns_service *service = mdns->services[i];  in mdns_resp_remove_netif()  local
1927     if (service) {  in mdns_resp_remove_netif()
1928       mem_free(service);  in mdns_resp_remove_netif()
1947  * Add a service to the selected network interface.
1948  * @param netif The network interface to publish this service on
1949  * @param name The name of the service
1950  * @param service The service type, like "_http"
1951  * @param proto The service protocol, DNSSD_PROTO_TCP for TCP ("_tcp") and DNSSD_PROTO_UDP
1953  * @param port The port the service listens to
1954  * @param dns_ttl Validity time in seconds to send out for service data in DNS replies
1958  * @return ERR_OK if the service was added to the netif, an err_t otherwise
1961 mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_prot…  in mdns_resp_add_service()  argument
1973 …LWIP_ERROR("mdns_resp_add_service: Service too long", (strlen(service) <= MDNS_LABEL_MAXLEN), retu…  in mdns_resp_add_service()
1982 …LWIP_ERROR("mdns_resp_add_service: Service list full (increase MDNS_MAX_SERVICES)", (slot >= 0), r…  in mdns_resp_add_service()
1990   MEMCPY(&srv->service, service, LWIP_MIN(MDNS_LABEL_MAXLEN, strlen(service)));  in mdns_resp_add_service()
2014  * @param service The service provided to the get_txt callback
2020 mdns_resp_add_service_txtitem(struct mdns_service *service, const char *txt, u8_t txt_len)  in mdns_resp_add_service_txtitem()  argument
2022   LWIP_ASSERT("mdns_resp_add_service_txtitem: service != NULL", service);  in mdns_resp_add_service_txtitem()
2025   return mdns_domain_add_label(&service->txtdata, txt, txt_len);  in mdns_resp_add_service_txtitem()