X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;ds=sidebyside;f=avahi-core%2Fserver.c;h=6d076d01e23a7e248f359af4fa3c72970d16823a;hb=7b7a022127d14b3a83d042c2aa52c76ec90554d2;hp=6ba8ea0ce7cde7bb1a537a3d411db62526790f1f;hpb=af548e38c2c282132ddac2a75a76218ff3be3175;p=catta diff --git a/avahi-core/server.c b/avahi-core/server.c index 6ba8ea0..6d076d0 100644 --- a/avahi-core/server.c +++ b/avahi-core/server.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -138,7 +139,7 @@ static void enum_aux_records(AvahiServer *s, AvahiInterface *i, const char *name for (e = avahi_hashmap_lookup(s->entries_by_key, k); e; e = e->by_key_next) if (!e->dead && avahi_entry_is_registered(s, e, i)) - callback(s, e->record, e->flags & AVAHI_ENTRY_UNIQUE, userdata); + callback(s, e->record, e->flags & AVAHI_PUBLISH_UNIQUE, userdata); avahi_key_unref(k); } @@ -165,7 +166,7 @@ void avahi_server_prepare_response(AvahiServer *s, AvahiInterface *i, AvahiEntry assert(i); assert(e); - avahi_record_list_push(s->record_list, e->record, e->flags & AVAHI_ENTRY_UNIQUE, unicast_response, auxiliary); + avahi_record_list_push(s->record_list, e->record, e->flags & AVAHI_PUBLISH_UNIQUE, unicast_response, auxiliary); } void avahi_server_prepare_matching_responses(AvahiServer *s, AvahiInterface *i, AvahiKey *k, int unicast_response) { @@ -267,7 +268,6 @@ static void incoming_probe(AvahiServer *s, AvahiRecord *record, AvahiInterface * } } - if (!ours) { if (won) @@ -296,7 +296,30 @@ static int handle_conflict(AvahiServer *s, AvahiInterface *i, AvahiRecord *recor for (e = avahi_hashmap_lookup(s->entries_by_key, record->key); e; e = n) { n = e->by_key_next; - if (e->dead || (!(e->flags & AVAHI_ENTRY_UNIQUE) && !unique)) + if (e->dead) + continue; + + /* Check if the incoming is a goodbye record */ + if (avahi_record_is_goodbye(record)) { + + if (avahi_record_equal_no_ttl(e->record, record)) { + char *t; + + /* Refresh */ + t = avahi_record_to_string(record); + avahi_log_debug("Recieved goodbye record for one of our records [%s]. Refreshing.", t); + avahi_server_prepare_matching_responses(s, i, e->record->key, 0); + + valid = 0; + avahi_free(t); + break; + } + + /* If the goodybe packet doesn't match one of our own RRs, we simply ignore it. */ + continue; + } + + if (!(e->flags & AVAHI_PUBLISH_UNIQUE) && !unique) continue; /* Either our entry or the other is intended to be unique, so let's check */ @@ -565,7 +588,7 @@ static void reflect_probe(AvahiServer *s, AvahiInterface *i, AvahiRecord *r) { avahi_interface_post_probe(j, r, 1); } -static void handle_query_packet(AvahiServer *s, AvahiDnsPacket *p, AvahiInterface *i, const AvahiAddress *a, uint16_t port, int legacy_unicast) { +static void handle_query_packet(AvahiServer *s, AvahiDnsPacket *p, AvahiInterface *i, const AvahiAddress *a, uint16_t port, int legacy_unicast, int from_local_iface) { size_t n; int is_probe; @@ -590,8 +613,10 @@ static void handle_query_packet(AvahiServer *s, AvahiDnsPacket *p, AvahiInterfac goto fail; } - if (!legacy_unicast) + if (!legacy_unicast && !from_local_iface) { reflect_query(s, i, key); + avahi_cache_start_poof(i->cache, key, a); + } if (avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ANCOUNT) == 0 && !(avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_FLAGS) & AVAHI_DNS_FLAG_TC)) @@ -603,40 +628,45 @@ static void handle_query_packet(AvahiServer *s, AvahiDnsPacket *p, AvahiInterfac avahi_key_unref(key); } - /* Known Answer Suppression */ - for (n = avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ANCOUNT); n > 0; n --) { - AvahiRecord *record; - int unique = 0; - - if (!(record = avahi_dns_packet_consume_record(p, &unique))) { - avahi_log_warn("Packet too short (2)"); - goto fail; - } + if (!legacy_unicast) { - if (handle_conflict(s, i, record, unique, a)) { - avahi_response_scheduler_suppress(i->response_scheduler, record, a); - avahi_record_list_drop(s->record_list, record); + /* Known Answer Suppression */ + for (n = avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ANCOUNT); n > 0; n --) { + AvahiRecord *record; + int unique = 0; + + if (!(record = avahi_dns_packet_consume_record(p, &unique))) { + avahi_log_warn("Packet too short (2)"); + goto fail; + } + + if (handle_conflict(s, i, record, unique, a)) { + avahi_response_scheduler_suppress(i->response_scheduler, record, a); + avahi_record_list_drop(s->record_list, record); + avahi_cache_stop_poof(i->cache, record, a); + } + + avahi_record_unref(record); } - avahi_record_unref(record); - } - - /* Probe record */ - for (n = avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_NSCOUNT); n > 0; n --) { - AvahiRecord *record; - int unique = 0; - - if (!(record = avahi_dns_packet_consume_record(p, &unique))) { - avahi_log_warn("Packet too short (3)"); - goto fail; - } - - if (!avahi_key_is_pattern(record->key)) { - reflect_probe(s, i, record); - incoming_probe(s, record, i); + /* Probe record */ + for (n = avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_NSCOUNT); n > 0; n --) { + AvahiRecord *record; + int unique = 0; + + if (!(record = avahi_dns_packet_consume_record(p, &unique))) { + avahi_log_warn("Packet too short (3)"); + goto fail; + } + + if (!avahi_key_is_pattern(record->key)) { + if (!from_local_iface) + reflect_probe(s, i, record); + incoming_probe(s, record, i); + } + + avahi_record_unref(record); } - - avahi_record_unref(record); } if (!avahi_record_list_is_empty(s->record_list)) @@ -648,7 +678,7 @@ fail: avahi_record_list_flush(s->record_list); } -static void handle_response_packet(AvahiServer *s, AvahiDnsPacket *p, AvahiInterface *i, const AvahiAddress *a) { +static void handle_response_packet(AvahiServer *s, AvahiDnsPacket *p, AvahiInterface *i, const AvahiAddress *a, int from_local_iface) { unsigned n; assert(s); @@ -675,7 +705,8 @@ static void handle_response_packet(AvahiServer *s, AvahiDnsPacket *p, AvahiInter /* avahi_free(txt); */ if (handle_conflict(s, i, record, cache_flush, a)) { - reflect_response(s, i, record, cache_flush); + if (!from_local_iface) + reflect_response(s, i, record, cache_flush); avahi_cache_update(i->cache, record, cache_flush, a); avahi_response_scheduler_incoming(i->response_scheduler, record, cache_flush); } @@ -713,9 +744,10 @@ static AvahiLegacyUnicastReflectSlot* allocate_slot(AvahiServer *s) { if (!(slot = avahi_new(AvahiLegacyUnicastReflectSlot, 1))) return NULL; /* OOM */ - slot = s->legacy_unicast_reflect_slots[idx]; + s->legacy_unicast_reflect_slots[idx] = slot; slot->id = s->legacy_unicast_reflect_id++; slot->server = s; + return slot; } @@ -785,7 +817,7 @@ static void reflect_legacy_unicast_query_packet(AvahiServer *s, AvahiDnsPacket * assert(i); assert(a); assert(port > 0); - assert(i->protocol == a->family); + assert(i->protocol == a->proto); if (!s->config.enable_reflector) return; @@ -873,14 +905,27 @@ static int is_mdns_mcast_address(const AvahiAddress *a) { AvahiAddress b; assert(a); - avahi_address_parse(a->family == AVAHI_PROTO_INET ? AVAHI_IPV4_MCAST_GROUP : AVAHI_IPV6_MCAST_GROUP, a->family, &b); + avahi_address_parse(a->proto == AVAHI_PROTO_INET ? AVAHI_IPV4_MCAST_GROUP : AVAHI_IPV6_MCAST_GROUP, a->proto, &b); return avahi_address_cmp(a, &b) == 0; } +static int originates_from_local_iface(AvahiServer *s, AvahiIfIndex iface, const AvahiAddress *a, uint16_t port) { + assert(s); + assert(iface != AVAHI_IF_UNSPEC); + assert(a); + + /* If it isn't the MDNS port it can't be generated by us */ + if (port != AVAHI_MDNS_PORT) + return 0; + + return avahi_interface_has_address(s->monitor, iface, a); +} + static void dispatch_packet(AvahiServer *s, AvahiDnsPacket *p, const struct sockaddr *sa, AvahiAddress *dest, AvahiIfIndex iface, int ttl) { AvahiInterface *i; AvahiAddress a; uint16_t port; + int from_local_iface = 0; assert(s); assert(p); @@ -888,7 +933,7 @@ static void dispatch_packet(AvahiServer *s, AvahiDnsPacket *p, const struct sock assert(dest); assert(iface > 0); - if (!(i = avahi_interface_monitor_get_interface(s->monitor, iface, sa->sa_family)) || + if (!(i = avahi_interface_monitor_get_interface(s->monitor, iface, avahi_af_to_proto(sa->sa_family))) || !avahi_interface_relevant(i)) { avahi_log_warn("Recieved packet from invalid interface."); return; @@ -907,7 +952,11 @@ static void dispatch_packet(AvahiServer *s, AvahiDnsPacket *p, const struct sock /* This originates from our local reflector, so let's ignore it */ return; - if (avahi_dns_packet_is_valid(p) < 0) { + /* We don't want to reflect local traffic, so we check if this packet is generated locally. */ + if (s->config.enable_reflector) + from_local_iface = originates_from_local_iface(s, iface, &a, port); + + if (avahi_dns_packet_check_valid_multicast(p) < 0) { avahi_log_warn("Recieved invalid packet."); return; } @@ -935,7 +984,7 @@ static void dispatch_packet(AvahiServer *s, AvahiDnsPacket *p, const struct sock if (legacy_unicast) reflect_legacy_unicast_query_packet(s, p, i, &a, port); - handle_query_packet(s, p, i, &a, port, legacy_unicast); + handle_query_packet(s, p, i, &a, port, legacy_unicast, from_local_iface); /* avahi_log_debug("Handled query"); */ } else { @@ -962,15 +1011,14 @@ static void dispatch_packet(AvahiServer *s, AvahiDnsPacket *p, const struct sock return; } - handle_response_packet(s, p, i, &a); + handle_response_packet(s, p, i, &a, from_local_iface); /* avahi_log_debug("Handled response"); */ } } -static void dispatch_legacy_unicast_packet(AvahiServer *s, AvahiDnsPacket *p, const struct sockaddr *sa, AvahiIfIndex iface, int ttl) { +static void dispatch_legacy_unicast_packet(AvahiServer *s, AvahiDnsPacket *p, const struct sockaddr *sa, AvahiIfIndex iface) { AvahiInterface *i, *j; AvahiAddress a; - uint16_t port; AvahiLegacyUnicastReflectSlot *slot; assert(s); @@ -978,7 +1026,7 @@ static void dispatch_legacy_unicast_packet(AvahiServer *s, AvahiDnsPacket *p, co assert(sa); assert(iface > 0); - if (!(i = avahi_interface_monitor_get_interface(s->monitor, iface, sa->sa_family)) || + if (!(i = avahi_interface_monitor_get_interface(s->monitor, iface, avahi_af_to_proto(sa->sa_family))) || !avahi_interface_relevant(i)) { avahi_log_warn("Recieved packet from invalid interface."); return; @@ -986,14 +1034,13 @@ static void dispatch_legacy_unicast_packet(AvahiServer *s, AvahiDnsPacket *p, co /* avahi_log_debug("new legacy unicast packet recieved on interface '%s.%i'.", i->hardware->name, i->protocol); */ - port = avahi_port_from_sockaddr(sa); avahi_address_from_sockaddr(sa, &a); if (avahi_address_is_ipv4_in_ipv6(&a)) /* This is an IPv4 address encapsulated in IPv6, so let's ignore it. */ return; - if (avahi_dns_packet_is_valid(p) < 0 || avahi_dns_packet_is_query(p)) { + if (avahi_dns_packet_check_valid(p) < 0 || avahi_dns_packet_is_query(p)) { avahi_log_warn("Recieved invalid packet."); return; } @@ -1003,7 +1050,7 @@ static void dispatch_legacy_unicast_packet(AvahiServer *s, AvahiDnsPacket *p, co return; } - if (!(j = avahi_interface_monitor_get_interface(s->monitor, slot->interface, slot->address.family)) || + if (!(j = avahi_interface_monitor_get_interface(s->monitor, slot->interface, slot->address.proto)) || !avahi_interface_relevant(j)) return; @@ -1032,38 +1079,37 @@ static void socket_event(AvahiWatch *w, int fd, AvahiWatchEvent events, void *us if (events & AVAHI_WATCH_IN) { if (fd == s->fd_ipv4) { - dest.family = AVAHI_PROTO_INET; + dest.proto = AVAHI_PROTO_INET; if ((p = avahi_recv_dns_packet_ipv4(s->fd_ipv4, &sa, &dest.data.ipv4, &iface, &ttl))) { dispatch_packet(s, p, (struct sockaddr*) &sa, &dest, iface, ttl); avahi_dns_packet_free(p); } } else if (fd == s->fd_ipv6) { - dest.family = AVAHI_PROTO_INET6; + dest.proto = AVAHI_PROTO_INET6; if ((p = avahi_recv_dns_packet_ipv6(s->fd_ipv6, &sa6, &dest.data.ipv6, &iface, &ttl))) { dispatch_packet(s, p, (struct sockaddr*) &sa6, &dest, iface, ttl); avahi_dns_packet_free(p); } } else if (fd == s->fd_legacy_unicast_ipv4) { - dest.family = AVAHI_PROTO_INET; + dest.proto = AVAHI_PROTO_INET; if ((p = avahi_recv_dns_packet_ipv4(s->fd_legacy_unicast_ipv4, &sa, &dest.data.ipv4, &iface, &ttl))) { - dispatch_legacy_unicast_packet(s, p, (struct sockaddr*) &sa, iface, ttl); + dispatch_legacy_unicast_packet(s, p, (struct sockaddr*) &sa, iface); avahi_dns_packet_free(p); } } else if (fd == s->fd_legacy_unicast_ipv6) { - dest.family = AVAHI_PROTO_INET6; + dest.proto = AVAHI_PROTO_INET6; if ((p = avahi_recv_dns_packet_ipv6(s->fd_legacy_unicast_ipv6, &sa6, &dest.data.ipv6, &iface, &ttl))) { - dispatch_legacy_unicast_packet(s, p, (struct sockaddr*) &sa6, iface, ttl); + dispatch_legacy_unicast_packet(s, p, (struct sockaddr*) &sa6, iface); avahi_dns_packet_free(p); } } cleanup_dead(s); - } else { - assert(0); - } + } else + abort(); } static void server_set_state(AvahiServer *s, AvahiServerState state) { @@ -1149,7 +1195,7 @@ static void register_hinfo(AvahiServer *s) { r->data.hinfo.cpu = avahi_strdup(avahi_strup(utsname.machine)); r->data.hinfo.os = avahi_strdup(avahi_strup(utsname.sysname)); - if (avahi_server_add(s, s->hinfo_entry_group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_ENTRY_UNIQUE, r) < 0) { + if (avahi_server_add(s, s->hinfo_entry_group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_PUBLISH_UNIQUE, r) < 0) { avahi_log_warn("Failed to add HINFO RR: %s", avahi_strerror(s->error)); return; } @@ -1168,10 +1214,10 @@ static void register_localhost(AvahiServer *s) { /* Add localhost entries */ avahi_address_parse("127.0.0.1", AVAHI_PROTO_INET, &a); - avahi_server_add_address(s, NULL, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_ENTRY_NOPROBE|AVAHI_ENTRY_NOANNOUNCE, "localhost", &a); + avahi_server_add_address(s, NULL, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_PUBLISH_NO_PROBE|AVAHI_PUBLISH_NO_ANNOUNCE, "localhost", &a); avahi_address_parse("::1", AVAHI_PROTO_INET6, &a); - avahi_server_add_address(s, NULL, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_ENTRY_NOPROBE|AVAHI_ENTRY_NOANNOUNCE, "ip6-localhost", &a); + avahi_server_add_address(s, NULL, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_PUBLISH_NO_PROBE|AVAHI_PUBLISH_NO_ANNOUNCE, "ip6-localhost", &a); } static void register_browse_domain(AvahiServer *s) { @@ -1278,8 +1324,8 @@ static int valid_server_config(const AvahiServerConfig *sc) { static int setup_sockets(AvahiServer *s) { assert(s); - s->fd_ipv4 = s->config.use_ipv4 ? avahi_open_socket_ipv4() : -1; - s->fd_ipv6 = s->config.use_ipv6 ? avahi_open_socket_ipv6() : -1; + s->fd_ipv4 = s->config.use_ipv4 ? avahi_open_socket_ipv4(s->config.disallow_other_stacks) : -1; + s->fd_ipv6 = s->config.use_ipv6 ? avahi_open_socket_ipv6(s->config.disallow_other_stacks) : -1; if (s->fd_ipv6 < 0 && s->fd_ipv4 < 0) return AVAHI_ERR_NO_NETWORK; @@ -1289,20 +1335,24 @@ static int setup_sockets(AvahiServer *s) { else if (s->fd_ipv6 < 0 && s->config.use_ipv6) avahi_log_notice("Failed to create IPv6 socket, proceeding in IPv4 only mode"); - s->fd_legacy_unicast_ipv4 = s->fd_ipv4 >= 0 && s->config.enable_reflector ? avahi_open_legacy_unicast_socket_ipv4() : -1; - s->fd_legacy_unicast_ipv6 = s->fd_ipv6 >= 0 && s->config.enable_reflector ? avahi_open_legacy_unicast_socket_ipv6() : -1; - - s->watch_ipv4 = s->watch_ipv6 = s->watch_legacy_unicast_ipv4 = s->watch_legacy_unicast_ipv6 = NULL; + s->fd_legacy_unicast_ipv4 = s->fd_ipv4 >= 0 && s->config.enable_reflector ? avahi_open_unicast_socket_ipv4() : -1; + s->fd_legacy_unicast_ipv6 = s->fd_ipv6 >= 0 && s->config.enable_reflector ? avahi_open_unicast_socket_ipv6() : -1; + + s->watch_ipv4 = + s->watch_ipv6 = + s->watch_legacy_unicast_ipv4 = + s->watch_legacy_unicast_ipv6 = NULL; if (s->fd_ipv4 >= 0) s->watch_ipv4 = s->poll_api->watch_new(s->poll_api, s->fd_ipv4, AVAHI_WATCH_IN, socket_event, s); if (s->fd_ipv6 >= 0) s->watch_ipv6 = s->poll_api->watch_new(s->poll_api, s->fd_ipv6, AVAHI_WATCH_IN, socket_event, s); + if (s->fd_legacy_unicast_ipv4 >= 0) s->watch_legacy_unicast_ipv4 = s->poll_api->watch_new(s->poll_api, s->fd_legacy_unicast_ipv4, AVAHI_WATCH_IN, socket_event, s); if (s->fd_legacy_unicast_ipv6 >= 0) s->watch_legacy_unicast_ipv6 = s->poll_api->watch_new(s->poll_api, s->fd_legacy_unicast_ipv6, AVAHI_WATCH_IN, socket_event, s); - + return 0; } @@ -1340,6 +1390,7 @@ AvahiServer *avahi_server_new(const AvahiPoll *poll_api, const AvahiServerConfig return NULL; } + s->n_host_rr_pending = 0; s->need_entry_cleanup = 0; s->need_group_cleanup = 0; @@ -1366,6 +1417,18 @@ AvahiServer *avahi_server_new(const AvahiPoll *poll_api, const AvahiServerConfig s->legacy_unicast_reflect_slots = NULL; s->legacy_unicast_reflect_id = 0; + + if (s->config.enable_wide_area) { + s->wide_area_lookup_engine = avahi_wide_area_engine_new(s); + avahi_wide_area_set_servers(s->wide_area_lookup_engine, s->config.wide_area_servers, s->config.n_wide_area_servers); + } else + s->wide_area_lookup_engine = NULL; + + s->multicast_lookup_engine = avahi_multicast_lookup_engine_new(s); + + do { + s->local_service_cookie = (uint32_t) rand() * (uint32_t) rand(); + } while (s->local_service_cookie == AVAHI_SERVICE_COOKIE_INVALID); /* Get host name */ s->host_name = s->config.host_name ? avahi_normalize_name(s->config.host_name) : avahi_get_host_name(); @@ -1395,15 +1458,7 @@ AvahiServer *avahi_server_new(const AvahiPoll *poll_api, const AvahiServerConfig void avahi_server_free(AvahiServer* s) { assert(s); - while(s->entries) - free_entry(s, s->entries); - - avahi_interface_monitor_free(s->monitor); - - while (s->groups) - free_group(s, s->groups); - - free_slots(s); + /* Remove all browsers */ while (s->dns_server_browsers) avahi_s_dns_server_browser_free(s->dns_server_browsers); @@ -1422,31 +1477,54 @@ void avahi_server_free(AvahiServer* s) { while (s->record_browsers) avahi_s_record_browser_destroy(s->record_browsers); - avahi_hashmap_free(s->record_browser_hashmap); - avahi_hashmap_free(s->entries_by_key); + /* Remove all locally rgeistered stuff */ - avahi_time_event_queue_free(s->time_event_queue); + while(s->entries) + free_entry(s, s->entries); + + avahi_interface_monitor_free(s->monitor); + + while (s->groups) + free_group(s, s->groups); + + free_slots(s); + avahi_hashmap_free(s->entries_by_key); avahi_record_list_free(s->record_list); + avahi_hashmap_free(s->record_browser_hashmap); + + if (s->wide_area_lookup_engine) + avahi_wide_area_engine_free(s->wide_area_lookup_engine); + avahi_multicast_lookup_engine_free(s->multicast_lookup_engine); + avahi_time_event_queue_free(s->time_event_queue); + + /* Free watches */ + if (s->watch_ipv4) s->poll_api->watch_free(s->watch_ipv4); if (s->watch_ipv6) s->poll_api->watch_free(s->watch_ipv6); + if (s->watch_legacy_unicast_ipv4) s->poll_api->watch_free(s->watch_legacy_unicast_ipv4); if (s->watch_legacy_unicast_ipv6) s->poll_api->watch_free(s->watch_legacy_unicast_ipv6); + + /* Free sockets */ if (s->fd_ipv4 >= 0) close(s->fd_ipv4); if (s->fd_ipv6 >= 0) close(s->fd_ipv6); + if (s->fd_legacy_unicast_ipv4 >= 0) close(s->fd_legacy_unicast_ipv4); if (s->fd_legacy_unicast_ipv6 >= 0) close(s->fd_legacy_unicast_ipv6); - + + /* Free other stuff */ + avahi_free(s->host_name); avahi_free(s->domain_name); avahi_free(s->host_name_fqdn); @@ -1456,7 +1534,7 @@ void avahi_server_free(AvahiServer* s) { avahi_free(s); } -static int check_record_conflict(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, AvahiRecord *r, AvahiEntryFlags flags) { +static int check_record_conflict(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, AvahiRecord *r, AvahiPublishFlags flags) { AvahiEntry *e; assert(s); @@ -1466,21 +1544,20 @@ static int check_record_conflict(AvahiServer *s, AvahiIfIndex interface, AvahiPr if (e->dead) continue; - if (!(flags & AVAHI_ENTRY_UNIQUE) && !(e->flags & AVAHI_ENTRY_UNIQUE)) + if (!(flags & AVAHI_PUBLISH_UNIQUE) && !(e->flags & AVAHI_PUBLISH_UNIQUE)) continue; - if ((flags & AVAHI_ENTRY_ALLOWMUTIPLE) && (e->flags & AVAHI_ENTRY_ALLOWMUTIPLE) ) + if ((flags & AVAHI_PUBLISH_ALLOW_MULTIPLE) && (e->flags & AVAHI_PUBLISH_ALLOW_MULTIPLE) ) continue; - if (interface <= 0 || - e->interface <= 0 || - e->interface == interface || - protocol == AVAHI_PROTO_UNSPEC || - e->protocol == AVAHI_PROTO_UNSPEC || - e->protocol == protocol) + if ((interface <= 0 || + e->interface <= 0 || + e->interface == interface) && + (protocol == AVAHI_PROTO_UNSPEC || + e->protocol == AVAHI_PROTO_UNSPEC || + e->protocol == protocol)) return -1; - } return 0; @@ -1491,7 +1568,7 @@ int avahi_server_add( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, - AvahiEntryFlags flags, + AvahiPublishFlags flags, AvahiRecord *r) { AvahiEntry *e, *t; @@ -1499,6 +1576,18 @@ int avahi_server_add( assert(s); assert(r); + if (!AVAHI_IF_VALID(interface)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_INTERFACE); + + if (!AVAHI_PROTO_VALID(protocol)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_PROTOCOL); + + if (!AVAHI_FLAGS_VALID(flags, AVAHI_PUBLISH_NO_ANNOUNCE|AVAHI_PUBLISH_NO_PROBE|AVAHI_PUBLISH_UNIQUE|AVAHI_PUBLISH_ALLOW_MULTIPLE|AVAHI_PUBLISH_IS_PROXY)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_FLAGS); + + if (!avahi_is_valid_domain_name(r->key->name)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_HOST_NAME); + if (r->ttl == 0) return avahi_server_set_errno(s, AVAHI_ERR_INVALID_TTL); @@ -1512,7 +1601,7 @@ int avahi_server_add( return avahi_server_set_errno(s, AVAHI_ERR_LOCAL_COLLISION); if (!(e = avahi_new(AvahiEntry, 1))) - return avahi_server_set_errno(s, AVAHI_ERR_NO_NETWORK); + return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); e->server = s; e->record = avahi_record_ref(r); @@ -1582,6 +1671,9 @@ int avahi_server_dump(AvahiServer *s, AvahiDumpCallback callback, void* userdata } avahi_dump_caches(s->monitor, callback, userdata); + + if (s->wide_area_lookup_engine) + avahi_wide_area_cache_dump(s->wide_area_lookup_engine, callback, userdata); return AVAHI_OK; } @@ -1590,7 +1682,7 @@ int avahi_server_add_ptr( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, - AvahiEntryFlags flags, + AvahiPublishFlags flags, uint32_t ttl, const char *name, const char *dest) { @@ -1601,7 +1693,13 @@ int avahi_server_add_ptr( assert(s); assert(dest); - if (!(r = avahi_record_new_full(name ? name : s->host_name_fqdn, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR, ttl))) + if ((name && !avahi_is_valid_domain_name(name)) || !avahi_is_valid_domain_name(dest)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_HOST_NAME); + + if (!name) + name = s->host_name_fqdn; + + if (!(r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR, ttl))) return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); r->data.ptr.name = avahi_normalize_name(dest); @@ -1615,30 +1713,38 @@ int avahi_server_add_address( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, - AvahiEntryFlags flags, + AvahiPublishFlags flags, const char *name, AvahiAddress *a) { char *n = NULL; int ret = AVAHI_OK; + assert(s); assert(a); - if (name) { + if (!AVAHI_IF_VALID(interface)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_INTERFACE); + + if (!AVAHI_PROTO_VALID(protocol) || !AVAHI_PROTO_VALID(a->proto)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_PROTOCOL); + + if (!AVAHI_FLAGS_VALID(flags, AVAHI_PUBLISH_NO_REVERSE|AVAHI_PUBLISH_NO_ANNOUNCE|AVAHI_PUBLISH_NO_PROBE)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_FLAGS); + + if (name && !avahi_is_valid_domain_name(name)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_HOST_NAME); + + if (!name) + name = s->host_name_fqdn; + else { if (!(n = avahi_normalize_name(name))) return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); name = n; - } else - name = s->host_name_fqdn; - - if (!avahi_is_valid_domain_name(name)) { - ret = avahi_server_set_errno(s, AVAHI_ERR_INVALID_HOST_NAME); - goto fail; } - if (a->family == AVAHI_PROTO_INET) { - char *reverse; + if (a->proto == AVAHI_PROTO_INET) { AvahiRecord *r; if (!(r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_A, AVAHI_DEFAULT_TTL_HOST_NAME))) { @@ -1647,25 +1753,28 @@ int avahi_server_add_address( } r->data.a.address = a->data.ipv4; - ret = avahi_server_add(s, g, interface, protocol, flags | AVAHI_ENTRY_UNIQUE | AVAHI_ENTRY_ALLOWMUTIPLE, r); + ret = avahi_server_add(s, g, interface, protocol, (flags & ~ AVAHI_PUBLISH_NO_REVERSE) | AVAHI_PUBLISH_UNIQUE | AVAHI_PUBLISH_ALLOW_MULTIPLE, r); avahi_record_unref(r); if (ret < 0) goto fail; - - if (!(reverse = avahi_reverse_lookup_name_ipv4(&a->data.ipv4))) { - ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); - goto fail; - } - - ret = avahi_server_add_ptr(s, g, interface, protocol, flags | AVAHI_ENTRY_UNIQUE, AVAHI_DEFAULT_TTL_HOST_NAME, reverse, name); - avahi_free(reverse); + if (!(flags & AVAHI_PUBLISH_NO_REVERSE)) { + char *reverse; + + if (!(reverse = avahi_reverse_lookup_name_ipv4(&a->data.ipv4))) { + ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); + goto fail; + } + + ret = avahi_server_add_ptr(s, g, interface, protocol, flags | AVAHI_PUBLISH_UNIQUE, AVAHI_DEFAULT_TTL_HOST_NAME, reverse, name); + avahi_free(reverse); + } + } else { - char *reverse; AvahiRecord *r; - assert(a->family == AVAHI_PROTO_INET6); + assert(a->proto == AVAHI_PROTO_INET6); if (!(r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_AAAA, AVAHI_DEFAULT_TTL_HOST_NAME))) { ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); @@ -1673,30 +1782,34 @@ int avahi_server_add_address( } r->data.aaaa.address = a->data.ipv6; - ret = avahi_server_add(s, g, interface, protocol, flags | AVAHI_ENTRY_UNIQUE | AVAHI_ENTRY_ALLOWMUTIPLE, r); + ret = avahi_server_add(s, g, interface, protocol, (flags & ~ AVAHI_PUBLISH_NO_REVERSE) | AVAHI_PUBLISH_UNIQUE | AVAHI_PUBLISH_ALLOW_MULTIPLE, r); avahi_record_unref(r); if (ret < 0) goto fail; - if (!(reverse = avahi_reverse_lookup_name_ipv6_arpa(&a->data.ipv6))) { - ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); - goto fail; - } - - ret = avahi_server_add_ptr(s, g, interface, protocol, flags | AVAHI_ENTRY_UNIQUE, AVAHI_DEFAULT_TTL_HOST_NAME, reverse, name); - avahi_free(reverse); + if (!(flags & AVAHI_PUBLISH_NO_REVERSE)) { + char *reverse; - if (ret < 0) - goto fail; - - if (!(reverse = avahi_reverse_lookup_name_ipv6_int(&a->data.ipv6))) { - ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); - goto fail; + if (!(reverse = avahi_reverse_lookup_name_ipv6_arpa(&a->data.ipv6))) { + ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); + goto fail; + } + + ret = avahi_server_add_ptr(s, g, interface, protocol, flags | AVAHI_PUBLISH_UNIQUE, AVAHI_DEFAULT_TTL_HOST_NAME, reverse, name); + avahi_free(reverse); + + if (ret < 0) + goto fail; + + if (!(reverse = avahi_reverse_lookup_name_ipv6_int(&a->data.ipv6))) { + ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); + goto fail; + } + + ret = avahi_server_add_ptr(s, g, interface, protocol, flags | AVAHI_PUBLISH_UNIQUE, AVAHI_DEFAULT_TTL_HOST_NAME, reverse, name); + avahi_free(reverse); } - - ret = avahi_server_add_ptr(s, g, interface, protocol, flags | AVAHI_ENTRY_UNIQUE, AVAHI_DEFAULT_TTL_HOST_NAME, reverse, name); - avahi_free(reverse); } fail: @@ -1711,7 +1824,7 @@ static int server_add_txt_strlst_nocopy( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, - AvahiEntryFlags flags, + AvahiPublishFlags flags, uint32_t ttl, const char *name, AvahiStringList *strlst) { @@ -1720,7 +1833,7 @@ static int server_add_txt_strlst_nocopy( int ret; assert(s); - + if (!(r = avahi_record_new_full(name ? name : s->host_name_fqdn, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_TXT, ttl))) return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); @@ -1736,7 +1849,7 @@ int avahi_server_add_txt_strlst( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, - AvahiEntryFlags flags, + AvahiPublishFlags flags, uint32_t ttl, const char *name, AvahiStringList *strlst) { @@ -1751,7 +1864,7 @@ int avahi_server_add_txt_va( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, - AvahiEntryFlags flags, + AvahiPublishFlags flags, uint32_t ttl, const char *name, va_list va) { @@ -1766,7 +1879,7 @@ int avahi_server_add_txt( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, - AvahiEntryFlags flags, + AvahiPublishFlags flags, uint32_t ttl, const char *name, ...) { @@ -1805,11 +1918,28 @@ static void escape_service_name(char *d, size_t size, const char *s) { *(d++) = 0; } +static AvahiStringList *add_magic_cookie( + AvahiServer *s, + AvahiStringList *strlst) { + + assert(s); + + if (!s->config.add_service_cookie) + return strlst; + + if (avahi_string_list_find(strlst, AVAHI_SERVICE_COOKIE)) + /* This string list already contains a magic cookie */ + return strlst; + + return avahi_string_list_add_printf(strlst, AVAHI_SERVICE_COOKIE"=%u", s->local_service_cookie); +} + static int server_add_service_strlst_nocopy( AvahiServer *s, AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, + AvahiPublishFlags flags, const char *name, const char *type, const char *domain, @@ -1826,6 +1956,15 @@ static int server_add_service_strlst_nocopy( assert(type); assert(name); + if (!AVAHI_IF_VALID(interface)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_INTERFACE); + + if (!AVAHI_PROTO_VALID(protocol)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_PROTOCOL); + + if (!AVAHI_FLAGS_VALID(flags, AVAHI_PUBLISH_NO_COOKIE|AVAHI_PUBLISH_IS_PROXY)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_FLAGS); + if (!avahi_is_valid_service_name(name)) return avahi_server_set_errno(s, AVAHI_ERR_INVALID_SERVICE_NAME); @@ -1856,7 +1995,7 @@ static int server_add_service_strlst_nocopy( snprintf(ptr_name, sizeof(ptr_name), "%s.%s", t, d); snprintf(svc_name, sizeof(svc_name), "%s.%s.%s", ename, t, d); - if ((ret = avahi_server_add_ptr(s, g, interface, protocol, AVAHI_ENTRY_NULL, AVAHI_DEFAULT_TTL, ptr_name, svc_name)) < 0) + if ((ret = avahi_server_add_ptr(s, g, interface, protocol, flags & AVAHI_PUBLISH_IS_PROXY, AVAHI_DEFAULT_TTL, ptr_name, svc_name)) < 0) goto fail; if (!(r = avahi_record_new_full(svc_name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_SRV, AVAHI_DEFAULT_TTL_HOST_NAME))) { @@ -1869,20 +2008,23 @@ static int server_add_service_strlst_nocopy( r->data.srv.port = port; r->data.srv.name = h; h = NULL; - ret = avahi_server_add(s, g, interface, protocol, AVAHI_ENTRY_UNIQUE, r); + ret = avahi_server_add(s, g, interface, protocol, (flags & AVAHI_PUBLISH_IS_PROXY) | AVAHI_PUBLISH_UNIQUE, r); avahi_record_unref(r); if (ret < 0) goto fail; - ret = server_add_txt_strlst_nocopy(s, g, interface, protocol, AVAHI_ENTRY_UNIQUE, AVAHI_DEFAULT_TTL, svc_name, strlst); + if (!(flags & AVAHI_PUBLISH_NO_COOKIE)) + strlst = add_magic_cookie(s, strlst); + + ret = server_add_txt_strlst_nocopy(s, g, interface, protocol, (flags & AVAHI_PUBLISH_IS_PROXY) | AVAHI_PUBLISH_UNIQUE, AVAHI_DEFAULT_TTL, svc_name, strlst); strlst = NULL; if (ret < 0) goto fail; snprintf(enum_ptr, sizeof(enum_ptr), "_services._dns-sd._udp.%s", d); - ret = avahi_server_add_ptr(s, g, interface, protocol, AVAHI_ENTRY_NULL, AVAHI_DEFAULT_TTL, enum_ptr, ptr_name); + ret = avahi_server_add_ptr(s, g, interface, protocol, (flags & AVAHI_PUBLISH_IS_PROXY), AVAHI_DEFAULT_TTL, enum_ptr, ptr_name); fail: @@ -1900,6 +2042,7 @@ int avahi_server_add_service_strlst( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, + AvahiPublishFlags flags, const char *name, const char *type, const char *domain, @@ -1911,7 +2054,7 @@ int avahi_server_add_service_strlst( assert(type); assert(name); - return server_add_service_strlst_nocopy(s, g, interface, protocol, name, type, domain, host, port, avahi_string_list_copy(strlst)); + return server_add_service_strlst_nocopy(s, g, interface, protocol, flags, name, type, domain, host, port, avahi_string_list_copy(strlst)); } int avahi_server_add_service_va( @@ -1919,6 +2062,7 @@ int avahi_server_add_service_va( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, + AvahiPublishFlags flags, const char *name, const char *type, const char *domain, @@ -1930,7 +2074,7 @@ int avahi_server_add_service_va( assert(type); assert(name); - return server_add_service_strlst_nocopy(s, g, interface, protocol, name, type, domain, host, port, avahi_string_list_new_va(va)); + return server_add_service_strlst_nocopy(s, g, interface, protocol, flags, name, type, domain, host, port, avahi_string_list_new_va(va)); } int avahi_server_add_service( @@ -1938,6 +2082,7 @@ int avahi_server_add_service( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, + AvahiPublishFlags flags, const char *name, const char *type, const char *domain, @@ -1953,7 +2098,7 @@ int avahi_server_add_service( assert(name); va_start(va, port); - ret = avahi_server_add_service_va(s, g, interface, protocol, name, type, domain, host, port, va); + ret = avahi_server_add_service_va(s, g, interface, protocol, flags, name, type, domain, host, port, va); va_end(va); return ret; } @@ -1985,6 +2130,7 @@ int avahi_server_add_dns_server_address( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, + AvahiPublishFlags flags, const char *domain, AvahiDNSServerType type, const AvahiAddress *address, @@ -1992,25 +2138,37 @@ int avahi_server_add_dns_server_address( AvahiRecord *r; int ret; - char n[64] = "ip-"; + char n[64], h[64]; assert(s); assert(address); - assert(type == AVAHI_DNS_SERVER_UPDATE || type == AVAHI_DNS_SERVER_RESOLVE); - assert(address->family == AVAHI_PROTO_INET || address->family == AVAHI_PROTO_INET6); + if (!AVAHI_IF_VALID(interface)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_INTERFACE); + + if (!AVAHI_PROTO_VALID(protocol) || !AVAHI_PROTO_VALID(address->proto)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_PROTOCOL); + + if (!AVAHI_FLAGS_VALID(flags, 0) || (type != AVAHI_DNS_SERVER_UPDATE && type != AVAHI_DNS_SERVER_RESOLVE)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_FLAGS); + if (port == 0) return avahi_server_set_errno(s, AVAHI_ERR_INVALID_PORT); if (domain && !avahi_is_valid_domain_name(domain)) return avahi_server_set_errno(s, AVAHI_ERR_INVALID_DOMAIN_NAME); - if (address->family == AVAHI_PROTO_INET) { - hexstring(n+3, sizeof(n)-3, &address->data, 4); + if (!domain) + domain = s->domain_name; + + if (address->proto == AVAHI_PROTO_INET) { + hexstring(h, sizeof(h), &address->data, sizeof(AvahiIPv4Address)); + snprintf(n, sizeof(n), "ip-%s.%s", h, domain); r = avahi_record_new_full(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_A, AVAHI_DEFAULT_TTL_HOST_NAME); r->data.a.address = address->data.ipv4; } else { - hexstring(n+3, sizeof(n)-3, &address->data, 6); + hexstring(h, sizeof(h), &address->data, sizeof(AvahiIPv6Address)); + snprintf(n, sizeof(n), "ip6-%s.%s", h, domain); r = avahi_record_new_full(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_AAAA, AVAHI_DEFAULT_TTL_HOST_NAME); r->data.aaaa.address = address->data.ipv6; } @@ -2018,13 +2176,13 @@ int avahi_server_add_dns_server_address( if (!r) return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); - ret = avahi_server_add(s, g, interface, protocol, AVAHI_ENTRY_UNIQUE | AVAHI_ENTRY_ALLOWMUTIPLE, r); + ret = avahi_server_add(s, g, interface, protocol, AVAHI_PUBLISH_UNIQUE | AVAHI_PUBLISH_ALLOW_MULTIPLE, r); avahi_record_unref(r); if (ret < 0) return ret; - return avahi_server_add_dns_server_name(s, g, interface, protocol, domain, type, n, port); + return avahi_server_add_dns_server_name(s, g, interface, protocol, flags, domain, type, n, port); } int avahi_server_add_dns_server_name( @@ -2032,6 +2190,7 @@ int avahi_server_add_dns_server_name( AvahiSEntryGroup *g, AvahiIfIndex interface, AvahiProtocol protocol, + AvahiPublishFlags flags, const char *domain, AvahiDNSServerType type, const char *name, @@ -2043,8 +2202,16 @@ int avahi_server_add_dns_server_name( assert(s); assert(name); - assert(type == AVAHI_DNS_SERVER_UPDATE || type == AVAHI_DNS_SERVER_RESOLVE); + if (!AVAHI_IF_VALID(interface)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_INTERFACE); + + if (!AVAHI_PROTO_VALID(protocol)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_PROTOCOL); + + if (!AVAHI_FLAGS_VALID(flags, 0) || (type != AVAHI_DNS_SERVER_UPDATE && type != AVAHI_DNS_SERVER_RESOLVE)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_FLAGS); + if (port == 0) return avahi_server_set_errno(s, AVAHI_ERR_INVALID_PORT); @@ -2053,7 +2220,6 @@ int avahi_server_add_dns_server_name( if (domain && !avahi_is_valid_domain_name(domain)) return avahi_server_set_errno(s, AVAHI_ERR_INVALID_DOMAIN_NAME); - if (!domain) domain = s->domain_name; @@ -2077,7 +2243,7 @@ int avahi_server_add_dns_server_name( r->data.srv.weight = 0; r->data.srv.port = port; r->data.srv.name = n; - ret = avahi_server_add(s, g, interface, protocol, AVAHI_ENTRY_NULL, r); + ret = avahi_server_add(s, g, interface, protocol, AVAHI_PUBLISH_NULL, r); avahi_record_unref(r); return ret; @@ -2108,6 +2274,22 @@ void avahi_s_entry_group_change_state(AvahiSEntryGroup *g, AvahiEntryGroupState assert(state <= AVAHI_ENTRY_GROUP_COLLISION); + if (g->state == AVAHI_ENTRY_GROUP_ESTABLISHED) { + + /* If the entry group was established for a time longer then + * 5s, reset the establishment trial counter */ + + if (avahi_age(&g->established_at) > 5000000) + g->n_register_try = 0; + } + + if (state == AVAHI_ENTRY_GROUP_ESTABLISHED) + + /* If the entry group is now established, remember the time + * this happened */ + + gettimeofday(&g->established_at, NULL); + g->state = state; if (g->callback) @@ -2230,26 +2412,23 @@ void avahi_s_entry_group_reset(AvahiSEntryGroup *g) { AvahiEntry *e; assert(g); - if (g->register_time_event) { - avahi_time_event_free(g->register_time_event); - g->register_time_event = NULL; - } - for (e = g->entries; e; e = e->by_group_next) { if (!e->dead) { avahi_goodbye_entry(g->server, e, 1); e->dead = 1; } } + g->server->need_entry_cleanup = 1; if (g->register_time_event) { avahi_time_event_free(g->register_time_event); g->register_time_event = NULL; } - g->server->need_entry_cleanup = 1; g->n_probing = 0; + gettimeofday(&g->register_time, NULL); + avahi_s_entry_group_change_state(g, AVAHI_ENTRY_GROUP_UNCOMMITED); } @@ -2345,6 +2524,10 @@ AvahiServerConfig* avahi_server_config_init(AvahiServerConfig *c) { c->use_iff_running = 0; c->enable_reflector = 0; c->reflect_ipv = 0; + c->add_service_cookie = 1; + c->enable_wide_area = 0; + c->n_wide_area_servers = 0; + c->disallow_other_stacks = 0; return c; } @@ -2391,3 +2574,86 @@ int avahi_server_set_errno(AvahiServer *s, int error) { return s->error = error; } +uint32_t avahi_server_get_local_service_cookie(AvahiServer *s) { + assert(s); + + return s->local_service_cookie; +} + +int avahi_server_is_service_local(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, const char *name, const char *type, const char*domain) { + AvahiKey *key = NULL; + char *d, *t; + char ename[64], n[256]; + int ret; + AvahiEntry *e; + + assert(s); + assert(name); + assert(type); + assert(domain); + + if (!avahi_is_valid_service_name(name)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_SERVICE_NAME); + + if (!avahi_is_valid_service_type(type)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_SERVICE_TYPE); + + if (domain && !avahi_is_valid_domain_name(domain)) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_DOMAIN_NAME); + + escape_service_name(ename, sizeof(ename), name); + + if (!(d = avahi_normalize_name(domain)) || + !(t = avahi_normalize_name(type))) { + ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); + goto fail; + } + snprintf(n, sizeof(n), "%s.%s.%s", ename, t, d); + + if (!(key = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_SRV))) { + ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); + goto fail; + } + + ret = 0; + + for (e = avahi_hashmap_lookup(s->entries_by_key, key); e; e = e->by_key_next) { + + if ((e->interface == interface || e->interface <= 0 || interface <= 0) && + (e->protocol == protocol || e->protocol == AVAHI_PROTO_UNSPEC || protocol == AVAHI_PROTO_UNSPEC) && + !(e->flags & AVAHI_PUBLISH_IS_PROXY)) { + ret = 1; + break; + } + } + + avahi_key_unref(key); + + avahi_free(d); + avahi_free(t); + + return ret; + +fail: + if (d) + avahi_free(d); + + if (t) + avahi_free(t); + + if (key) + avahi_key_unref(key); + + return ret; +} + +/** Set the wide area DNS servers */ +int avahi_server_set_wide_area_servers(AvahiServer *s, const AvahiAddress *a, unsigned n) { + assert(s); + + if (!s->wide_area_lookup_engine) + return avahi_server_set_errno(s, AVAHI_ERR_INVALID_CONFIG); + + avahi_wide_area_set_servers(s->wide_area_lookup_engine, a, n); + return AVAHI_OK; +}