- /* Called whenever a new services becomes available on the LAN or is removed from the LAN */
-
- switch (event)
- {
- case AVAHI_BROWSER_FAILURE:
- fprintf(stderr, "(Browser) %s\n", avahi_strerror(avahi_server_errno(mesh->avahi_server)));
- avahi_simple_poll_quit(mesh->avahi_poll);
- return;
-
- case AVAHI_BROWSER_NEW:
- fprintf(stderr, "(Browser) NEW: service '%s' of type '%s' in domain '%s'\n", name, type, domain);
- /* We ignore the returned resolver object. In the callback
- function we free it. If the server is terminated before
- the callback function is called the server will free
- the resolver for us. */
- if (!(avahi_s_service_resolver_new(mesh->avahi_server, interface, protocol, name, type, domain, AVAHI_PROTO_UNSPEC, 0, discovery_resolve_callback, mesh)))
- fprintf(stderr, "Failed to resolve service '%s': %s\n", name, avahi_strerror(avahi_server_errno(mesh->avahi_server)));
- break;
-
- case AVAHI_BROWSER_REMOVE:
- fprintf(stderr, "(Browser) REMOVE: service '%s' of type '%s' in domain '%s'\n", name, type, domain);
- break;
-
- case AVAHI_BROWSER_ALL_FOR_NOW:
- case AVAHI_BROWSER_CACHE_EXHAUSTED:
- fprintf(stderr, "(Browser) %s\n", event == AVAHI_BROWSER_CACHE_EXHAUSTED ? "CACHE_EXHAUSTED" : "ALL_FOR_NOW");
- break;
- }
+ // asserts
+ assert(resolver != NULL);
+ assert(mesh != NULL);
+ assert(mesh->catta_server != NULL);
+
+ /* Called whenever a service has been resolved successfully or timed out */
+ switch(event) {
+ case CATTA_RESOLVER_FAILURE:
+ // asserts
+ assert(name != NULL);
+ assert(type != NULL);
+ assert(domain != NULL);
+ break;
+
+ case CATTA_RESOLVER_FOUND: {
+ // asserts
+ assert(name != NULL);
+ assert(type != NULL);
+ assert(domain != NULL);
+ assert(host_name != NULL);
+ assert(address != NULL);
+ assert(txt != NULL);
+
+ // retrieve fingerprint
+ CattaStringList *node_name_li = catta_string_list_find(txt, MESHLINK_MDNS_NAME_KEY);
+ CattaStringList *node_fp_li = catta_string_list_find(txt, MESHLINK_MDNS_FINGERPRINT_KEY);
+
+ if(node_name_li != NULL && node_fp_li != NULL) {
+ char *node_name = (char *)catta_string_list_get_text(node_name_li) + strlen(MESHLINK_MDNS_NAME_KEY);
+ char *node_fp = (char *)catta_string_list_get_text(node_fp_li) + strlen(MESHLINK_MDNS_FINGERPRINT_KEY);
+
+ if(node_name[0] == '=' && node_fp[0] == '=') {
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+
+ node_name += 1;
+ node_fp += 1;
+
+ meshlink_node_t *node = meshlink_get_node(mesh, node_name);
+
+ if(node != NULL) {
+ logger(mesh, MESHLINK_INFO, "Node %s is part of the mesh network.\n", node->name);
+
+ sockaddr_t naddress;
+ memset(&naddress, 0, sizeof(naddress));
+
+ switch(address->proto) {
+ case CATTA_PROTO_INET: {
+ naddress.in.sin_family = AF_INET;
+ naddress.in.sin_port = htons(port);
+ naddress.in.sin_addr.s_addr = address->data.ipv4.address;
+ }
+ break;
+
+ case CATTA_PROTO_INET6: {
+ naddress.in6.sin6_family = AF_INET6;
+ naddress.in6.sin6_port = htons(port);
+ memcpy(naddress.in6.sin6_addr.s6_addr, address->data.ipv6.address, sizeof(naddress.in6.sin6_addr.s6_addr));
+ }
+ break;
+
+ default:
+ naddress.unknown.family = AF_UNKNOWN;
+ break;
+ }
+
+ if(naddress.unknown.family != AF_UNKNOWN) {
+ meshlink_hint_address(mesh, (meshlink_node_t *)node, (struct sockaddr *)&naddress);
+
+ node_t *n = (node_t *)node;
+
+ if(n->connection && n->connection->outgoing) {
+ n->connection->outgoing->timeout = 0;
+
+ if(n->connection->outgoing->ev.cb) {
+ timeout_set(&mesh->loop, &n->connection->outgoing->ev, &(struct timeval) {
+ 0, 0
+ });
+ }
+
+ n->connection->last_ping_time = 0;
+ }
+
+ } else {
+ logger(mesh, MESHLINK_WARNING, "Could not resolve node %s to a known address family type.\n", node->name);
+ }
+ } else {
+ logger(mesh, MESHLINK_WARNING, "Node %s is not part of the mesh network.\n", node_name);
+ }
+
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+ }
+ }
+ }
+ break;
+ }
+
+ catta_s_service_resolver_free(resolver);