X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-core%2Fserver.c;h=27142982f7273b2b7fb13b8b5194c04f312b5530;hb=57a30ff663414e1799a9b991a3e4eac148a8131e;hp=ca5da5d1161940cc06b3f94d5264efbdf9850a1f;hpb=b789f76475170c84fce85383279aa8f683ad1ff9;p=catta diff --git a/avahi-core/server.c b/avahi-core/server.c index ca5da5d..2714298 100644 --- a/avahi-core/server.c +++ b/avahi-core/server.c @@ -31,10 +31,12 @@ #include #include #include +#include #include #include #include +#include #include "server.h" #include "iface.h" @@ -266,7 +268,6 @@ static void incoming_probe(AvahiServer *s, AvahiRecord *record, AvahiInterface * } } - if (!ours) { if (won) @@ -295,7 +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_ENTRY_UNIQUE) && !unique) continue; /* Either our entry or the other is intended to be unique, so let's check */ @@ -564,7 +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; @@ -589,7 +613,7 @@ 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); if (avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ANCOUNT) == 0 && @@ -602,40 +626,44 @@ 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_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)) @@ -647,7 +675,7 @@ 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); @@ -674,7 +702,8 @@ 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); } @@ -712,9 +741,10 @@ 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; } @@ -784,7 +814,7 @@ 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; @@ -872,14 +902,27 @@ 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); @@ -887,7 +930,7 @@ 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; @@ -906,7 +949,11 @@ 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; } @@ -934,7 +981,7 @@ 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 { @@ -961,15 +1008,14 @@ 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); @@ -977,7 +1023,7 @@ 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; @@ -985,14 +1031,13 @@ 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; } @@ -1002,7 +1047,7 @@ 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; @@ -1031,38 +1076,37 @@ 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) { @@ -1202,10 +1246,14 @@ static void register_stuff(AvahiServer *s) { assert(s); server_set_state(s, AVAHI_SERVER_REGISTERING); + s->n_host_rr_pending ++; /** Make sure that the state isn't changed tp AVAHI_SERVER_RUNNING too early */ + register_hinfo(s); register_browse_domain(s); avahi_update_host_rrs(s->monitor, 0); + s->n_host_rr_pending --; + if (s->n_host_rr_pending == 0) server_set_state(s, AVAHI_SERVER_RUNNING); } @@ -1284,24 +1332,28 @@ 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; } -AvahiServer *avahi_server_new(AvahiPoll *poll_api, const AvahiServerConfig *sc, AvahiServerCallback callback, void* userdata, int *error) { +AvahiServer *avahi_server_new(const AvahiPoll *poll_api, const AvahiServerConfig *sc, AvahiServerCallback callback, void* userdata, int *error) { AvahiServer *s; int e; @@ -1335,6 +1387,7 @@ AvahiServer *avahi_server_new(AvahiPoll *poll_api, const AvahiServerConfig *sc, return NULL; } + s->n_host_rr_pending = 0; s->need_entry_cleanup = 0; s->need_group_cleanup = 0; @@ -1361,6 +1414,19 @@ AvahiServer *avahi_server_new(AvahiPoll *poll_api, const AvahiServerConfig *sc, 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(); @@ -1390,15 +1456,7 @@ AvahiServer *avahi_server_new(AvahiPoll *poll_api, const AvahiServerConfig *sc, 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); @@ -1417,31 +1475,54 @@ 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); @@ -1467,15 +1548,14 @@ static int check_record_conflict(AvahiServer *s, AvahiIfIndex interface, AvahiPr if ((flags & AVAHI_ENTRY_ALLOWMUTIPLE) && (e->flags & AVAHI_ENTRY_ALLOWMUTIPLE) ) 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; @@ -1577,6 +1657,9 @@ 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; } @@ -1632,7 +1715,7 @@ int avahi_server_add_address( goto fail; } - if (a->family == AVAHI_PROTO_INET) { + if (a->proto == AVAHI_PROTO_INET) { char *reverse; AvahiRecord *r; @@ -1660,7 +1743,7 @@ int avahi_server_add_address( 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); @@ -1800,6 +1883,22 @@ 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, @@ -1870,6 +1969,8 @@ static int server_add_service_strlst_nocopy( if (ret < 0) goto fail; + strlst = add_magic_cookie(s, strlst); + ret = server_add_txt_strlst_nocopy(s, g, interface, protocol, AVAHI_ENTRY_UNIQUE, AVAHI_DEFAULT_TTL, svc_name, strlst); strlst = NULL; @@ -1987,12 +2088,12 @@ 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); + assert(address->proto == AVAHI_PROTO_INET || address->proto == AVAHI_PROTO_INET6); if (port == 0) return avahi_server_set_errno(s, AVAHI_ERR_INVALID_PORT); @@ -2000,12 +2101,14 @@ int avahi_server_add_dns_server_address( 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 (address->proto == AVAHI_PROTO_INET) { + hexstring(h, sizeof(h), &address->data, sizeof(AvahiIPv4Address)); + snprintf(n, sizeof(n), "ip-%s.%s", h, s->domain_name); 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, s->domain_name); 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; } @@ -2340,6 +2443,9 @@ 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; return c; } @@ -2386,3 +2492,85 @@ 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)) { + 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; +}