4 This file is part of avahi.
6 avahi is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
11 avahi is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
14 Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with avahi; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
27 #include <sys/socket.h>
28 #include <asm/types.h>
29 #include <linux/netlink.h>
30 #include <linux/rtnetlink.h>
35 #include <avahi-common/error.h>
36 #include <avahi-common/malloc.h>
46 static void update_address_rr(AvahiInterfaceMonitor *m, AvahiInterfaceAddress *a, int remove_rrs) {
50 if (m->list == LIST_DONE &&
51 avahi_interface_address_relevant(a) &&
53 m->server->config.publish_addresses &&
54 (m->server->state == AVAHI_SERVER_RUNNING ||
55 m->server->state == AVAHI_SERVER_REGISTERING)) {
57 /* Fill the entry group */
59 a->entry_group = avahi_s_entry_group_new(m->server, avahi_host_rr_entry_group_callback, NULL);
61 if (!a->entry_group) /* OOM */
64 if (avahi_s_entry_group_is_empty(a->entry_group)) {
66 avahi_address_snprint(t, sizeof(t), &a->address);
68 avahi_log_info("Registering new address %s on %s.", t, a->interface->hardware->name);
70 if (avahi_server_add_address(m->server, a->entry_group, a->interface->hardware->index, a->interface->protocol, 0, NULL, &a->address) < 0) {
71 avahi_log_warn(__FILE__": avahi_server_add_address() failed: %s", avahi_strerror(m->server->error));
72 avahi_s_entry_group_free(a->entry_group);
73 a->entry_group = NULL;
77 avahi_s_entry_group_commit(a->entry_group);
81 /* Clear the entry group */
83 if (a->entry_group && !avahi_s_entry_group_is_empty(a->entry_group)) {
85 avahi_address_snprint(t, sizeof(t), &a->address);
87 if (avahi_s_entry_group_get_state(a->entry_group) == AVAHI_ENTRY_GROUP_REGISTERING)
88 avahi_server_decrease_host_rr_pending(m->server);
90 avahi_log_info("Withdrawing address %s on %s.", t, a->interface->hardware->name);
92 avahi_s_entry_group_reset(a->entry_group);
97 static void update_interface_rr(AvahiInterfaceMonitor *m, AvahiInterface *i, int remove_rrs) {
98 AvahiInterfaceAddress *a;
103 for (a = i->addresses; a; a = a->address_next)
104 update_address_rr(m, a, remove_rrs);
107 static void update_hw_interface_rr(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, int remove_rrs) {
113 for (i = hw->interfaces; i; i = i->by_hardware_next)
114 update_interface_rr(m, i, remove_rrs);
116 if (m->list == LIST_DONE &&
118 m->server->config.publish_workstation &&
119 (m->server->state == AVAHI_SERVER_RUNNING ||
120 m->server->state == AVAHI_SERVER_REGISTERING)) {
122 if (!hw->entry_group)
123 hw->entry_group = avahi_s_entry_group_new(m->server, avahi_host_rr_entry_group_callback, NULL);
125 if (!hw->entry_group)
128 if (avahi_s_entry_group_is_empty(hw->entry_group)) {
132 if (!(t = avahi_format_mac_address(hw->mac_address, hw->mac_address_size)))
135 name = avahi_strdup_printf("%s [%s]", m->server->host_name, t);
141 if (avahi_server_add_service(m->server, hw->entry_group, hw->index, AVAHI_PROTO_UNSPEC, name, "_workstation._tcp", NULL, NULL, 9, NULL) < 0) {
142 avahi_log_warn(__FILE__": avahi_server_add_service() failed.");
143 avahi_s_entry_group_free(hw->entry_group);
144 hw->entry_group = NULL;
146 avahi_s_entry_group_commit(hw->entry_group);
153 if (hw->entry_group && !avahi_s_entry_group_is_empty(hw->entry_group)) {
155 if (avahi_s_entry_group_get_state(hw->entry_group) == AVAHI_ENTRY_GROUP_REGISTERING)
156 avahi_server_decrease_host_rr_pending(m->server);
158 avahi_s_entry_group_reset(hw->entry_group);
163 static void free_address(AvahiInterfaceMonitor *m, AvahiInterfaceAddress *a) {
166 assert(a->interface);
168 update_address_rr(m, a, 1);
169 AVAHI_LLIST_REMOVE(AvahiInterfaceAddress, address, a->interface->addresses, a);
172 avahi_s_entry_group_free(a->entry_group);
177 static void free_interface(AvahiInterfaceMonitor *m, AvahiInterface *i, int send_goodbye) {
181 avahi_goodbye_interface(m->server, i, send_goodbye);
182 avahi_response_scheduler_force(i->response_scheduler);
184 assert(!i->announcements);
186 update_interface_rr(m, i, 1);
189 free_address(m, i->addresses);
191 avahi_response_scheduler_free(i->response_scheduler);
192 avahi_query_scheduler_free(i->query_scheduler);
193 avahi_probe_scheduler_free(i->probe_scheduler);
194 avahi_cache_free(i->cache);
196 AVAHI_LLIST_REMOVE(AvahiInterface, interface, m->interfaces, i);
197 AVAHI_LLIST_REMOVE(AvahiInterface, by_hardware, i->hardware->interfaces, i);
202 static void free_hw_interface(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, int send_goodbye) {
206 update_hw_interface_rr(m, hw, 1);
208 while (hw->interfaces)
209 free_interface(m, hw->interfaces, send_goodbye);
212 avahi_s_entry_group_free(hw->entry_group);
214 AVAHI_LLIST_REMOVE(AvahiHwInterface, hardware, m->hw_interfaces, hw);
215 avahi_hashmap_remove(m->hashmap, &hw->index);
217 avahi_free(hw->name);
221 static AvahiInterfaceAddress* get_address(AvahiInterfaceMonitor *m, AvahiInterface *i, const AvahiAddress *raddr) {
222 AvahiInterfaceAddress *ia;
228 for (ia = i->addresses; ia; ia = ia->address_next)
229 if (avahi_address_cmp(&ia->address, raddr) == 0)
235 static int netlink_list_items(AvahiNetlink *nl, uint16_t type, unsigned *ret_seq) {
237 struct rtgenmsg *gen;
240 memset(&req, 0, sizeof(req));
241 n = (struct nlmsghdr*) req;
242 n->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg));
243 n->nlmsg_type = type;
244 n->nlmsg_flags = NLM_F_ROOT/*|NLM_F_MATCH*/|NLM_F_REQUEST;
248 memset(gen, 0, sizeof(struct rtgenmsg));
249 gen->rtgen_family = AF_UNSPEC;
251 return avahi_netlink_send(nl, n, ret_seq);
254 static void new_interface(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, AvahiProtocol protocol) {
259 assert(protocol != AVAHI_PROTO_UNSPEC);
261 if (!(i = avahi_new(AvahiInterface, 1)))
266 i->protocol = protocol;
269 AVAHI_LLIST_HEAD_INIT(AvahiInterfaceAddress, i->addresses);
270 AVAHI_LLIST_HEAD_INIT(AvahiAnnouncement, i->announcements);
272 i->cache = avahi_cache_new(m->server, i);
273 i->response_scheduler = avahi_response_scheduler_new(i);
274 i->query_scheduler = avahi_query_scheduler_new(i);
275 i->probe_scheduler = avahi_probe_scheduler_new(i);
277 if (!i->cache || !i->response_scheduler || !i->query_scheduler || !i->probe_scheduler)
280 AVAHI_LLIST_PREPEND(AvahiInterface, by_hardware, hw->interfaces, i);
281 AVAHI_LLIST_PREPEND(AvahiInterface, interface, m->interfaces, i);
288 avahi_cache_free(i->cache);
289 if (i->response_scheduler)
290 avahi_response_scheduler_free(i->response_scheduler);
291 if (i->query_scheduler)
292 avahi_query_scheduler_free(i->query_scheduler);
293 if (i->probe_scheduler)
294 avahi_probe_scheduler_free(i->probe_scheduler);
299 static void check_interface_relevant(AvahiInterfaceMonitor *m, AvahiInterface *i) {
305 b = avahi_interface_relevant(i);
307 if (m->list == LIST_DONE && b && !i->announcing) {
308 avahi_log_info("New relevant interface %s.%i.", i->hardware->name, i->protocol);
310 if (i->protocol == AVAHI_PROTO_INET)
311 avahi_mdns_mcast_join_ipv4(m->server->fd_ipv4, i->hardware->index);
312 if (i->protocol == AVAHI_PROTO_INET6)
313 avahi_mdns_mcast_join_ipv6(m->server->fd_ipv6, i->hardware->index);
316 avahi_announce_interface(m->server, i);
317 avahi_browser_new_interface(m->server, i);
318 } else if (!b && i->announcing) {
319 avahi_log_info("Interface %s.%i no longer relevant.", i->hardware->name, i->protocol);
321 if (i->protocol == AVAHI_PROTO_INET)
322 avahi_mdns_mcast_leave_ipv4(m->server->fd_ipv4, i->hardware->index);
323 if (i->protocol == AVAHI_PROTO_INET6)
324 avahi_mdns_mcast_leave_ipv6(m->server->fd_ipv6, i->hardware->index);
326 avahi_goodbye_interface(m->server, i, 0);
327 avahi_response_scheduler_clear(i->response_scheduler);
328 avahi_query_scheduler_clear(i->query_scheduler);
329 avahi_probe_scheduler_clear(i->probe_scheduler);
330 avahi_cache_flush(i->cache);
336 static void check_hw_interface_relevant(AvahiInterfaceMonitor *m, AvahiHwInterface *hw) {
342 for (i = hw->interfaces; i; i = i->by_hardware_next)
343 check_interface_relevant(m, i);
346 static void check_all_interfaces_relevant(AvahiInterfaceMonitor *m) {
350 for (i = m->interfaces; i; i = i->interface_next)
351 check_interface_relevant(m, i);
354 static void netlink_callback(AvahiNetlink *nl, struct nlmsghdr *n, void* userdata) {
355 AvahiInterfaceMonitor *m = userdata;
359 assert(m->netlink == nl);
361 if (n->nlmsg_type == RTM_NEWLINK) {
362 struct ifinfomsg *ifinfomsg = NLMSG_DATA(n);
363 AvahiHwInterface *hw;
364 struct rtattr *a = NULL;
367 if (ifinfomsg->ifi_family != AF_UNSPEC)
370 if (!(hw = avahi_hashmap_lookup(m->hashmap, &ifinfomsg->ifi_index))) {
372 if (!(hw = avahi_new(AvahiHwInterface, 1)))
379 hw->index = (AvahiIfIndex) ifinfomsg->ifi_index;
380 hw->mac_address_size = 0;
381 hw->entry_group = NULL;
383 AVAHI_LLIST_HEAD_INIT(AvahiInterface, hw->interfaces);
384 AVAHI_LLIST_PREPEND(AvahiHwInterface, hardware, m->hw_interfaces, hw);
386 avahi_hashmap_insert(m->hashmap, &hw->index, hw);
388 if (m->server->fd_ipv4 >= 0)
389 new_interface(m, hw, AVAHI_PROTO_INET);
390 if (m->server->fd_ipv6 >= 0)
391 new_interface(m, hw, AVAHI_PROTO_INET6);
394 hw->flags = ifinfomsg->ifi_flags;
396 l = NLMSG_PAYLOAD(n, sizeof(struct ifinfomsg));
397 a = IFLA_RTA(ifinfomsg);
399 while (RTA_OK(a, l)) {
400 switch(a->rta_type) {
402 avahi_free(hw->name);
403 hw->name = avahi_strndup(RTA_DATA(a), RTA_PAYLOAD(a));
407 assert(RTA_PAYLOAD(a) == sizeof(unsigned int));
408 hw->mtu = *((unsigned int*) RTA_DATA(a));
412 hw->mac_address_size = RTA_PAYLOAD(a);
413 if (hw->mac_address_size > AVAHI_MAX_MAC_ADDRESS)
414 hw->mac_address_size = AVAHI_MAX_MAC_ADDRESS;
416 memcpy(hw->mac_address, RTA_DATA(a), hw->mac_address_size);
427 update_hw_interface_rr(m, hw, 0);
428 check_hw_interface_relevant(m, hw);
430 } else if (n->nlmsg_type == RTM_DELLINK) {
431 struct ifinfomsg *ifinfomsg = NLMSG_DATA(n);
432 AvahiHwInterface *hw;
434 if (ifinfomsg->ifi_family != AF_UNSPEC)
437 if (!(hw = avahi_interface_monitor_get_hw_interface(m, (AvahiIfIndex) ifinfomsg->ifi_index)))
440 free_hw_interface(m, hw, 0);
442 } else if (n->nlmsg_type == RTM_NEWADDR || n->nlmsg_type == RTM_DELADDR) {
444 struct ifaddrmsg *ifaddrmsg = NLMSG_DATA(n);
446 struct rtattr *a = NULL;
451 if (ifaddrmsg->ifa_family != AVAHI_PROTO_INET && ifaddrmsg->ifa_family != AVAHI_PROTO_INET6)
454 if (!(i = (AvahiInterface*) avahi_interface_monitor_get_interface(m, (AvahiIfIndex) ifaddrmsg->ifa_index, (AvahiProtocol) ifaddrmsg->ifa_family)))
457 raddr.family = (AvahiProtocol) ifaddrmsg->ifa_family;
459 l = NLMSG_PAYLOAD(n, sizeof(struct ifaddrmsg));
460 a = IFA_RTA(ifaddrmsg);
462 while (RTA_OK(a, l)) {
464 switch(a->rta_type) {
466 if ((raddr.family == AVAHI_PROTO_INET6 && RTA_PAYLOAD(a) != 16) ||
467 (raddr.family == AVAHI_PROTO_INET && RTA_PAYLOAD(a) != 4))
470 memcpy(raddr.data.data, RTA_DATA(a), RTA_PAYLOAD(a));
485 if (n->nlmsg_type == RTM_NEWADDR) {
486 AvahiInterfaceAddress *addr;
488 if (!(addr = get_address(m, i, &raddr))) {
489 if (!(addr = avahi_new(AvahiInterfaceAddress, 1)))
493 addr->address = raddr;
495 addr->entry_group = NULL;
497 AVAHI_LLIST_PREPEND(AvahiInterfaceAddress, address, i->addresses, addr);
500 addr->flags = ifaddrmsg->ifa_flags;
501 addr->scope = ifaddrmsg->ifa_scope;
502 addr->prefix_len = ifaddrmsg->ifa_prefixlen;
504 AvahiInterfaceAddress *addr;
506 if (!(addr = get_address(m, i, &raddr)))
509 free_address(m, addr);
512 update_interface_rr(m, i, 0);
513 check_interface_relevant(m, i);
515 } else if (n->nlmsg_type == NLMSG_DONE) {
517 if (m->list == LIST_IFACE) {
519 if (netlink_list_items(m->netlink, RTM_GETADDR, &m->query_addr_seq) < 0) {
520 avahi_log_warn("NETLINK: Failed to list addrs: %s", strerror(errno));
529 if (m->list == LIST_DONE) {
530 check_all_interfaces_relevant(m);
531 avahi_update_host_rrs(m, 0);
532 avahi_log_info("Network interface enumeration completed.");
535 } else if (n->nlmsg_type == NLMSG_ERROR && (n->nlmsg_seq == m->query_link_seq || n->nlmsg_seq == m->query_addr_seq)) {
536 struct nlmsgerr *e = NLMSG_DATA (n);
539 avahi_log_warn("NETLINK: Failed to browse: %s", strerror(-e->error));
543 AvahiInterfaceMonitor *avahi_interface_monitor_new(AvahiServer *s) {
544 AvahiInterfaceMonitor *m = NULL;
546 if (!(m = avahi_new0(AvahiInterfaceMonitor, 1)))
547 return NULL; /* OOM */
550 if (!(m->netlink = avahi_netlink_new(s->poll_api, RTMGRP_LINK|RTMGRP_IPV4_IFADDR|RTMGRP_IPV6_IFADDR, netlink_callback, m)))
553 m->hashmap = avahi_hashmap_new(avahi_int_hash, avahi_int_equal, NULL, NULL);
555 AVAHI_LLIST_HEAD_INIT(AvahiInterface, m->interfaces);
556 AVAHI_LLIST_HEAD_INIT(AvahiHwInterface, m->hw_interfaces);
558 if (netlink_list_items(m->netlink, RTM_GETLINK, &m->query_link_seq) < 0)
561 m->list = LIST_IFACE;
566 avahi_interface_monitor_free(m);
570 void avahi_interface_monitor_sync(AvahiInterfaceMonitor *m) {
573 while (m->list != LIST_DONE) {
574 if (!avahi_netlink_work(m->netlink, 1))
579 void avahi_interface_monitor_free(AvahiInterfaceMonitor *m) {
582 while (m->hw_interfaces)
583 free_hw_interface(m, m->hw_interfaces, 1);
585 assert(!m->interfaces);
589 avahi_netlink_free(m->netlink);
592 avahi_hashmap_free(m->hashmap);
598 AvahiInterface* avahi_interface_monitor_get_interface(AvahiInterfaceMonitor *m, AvahiIfIndex idx, AvahiProtocol protocol) {
599 AvahiHwInterface *hw;
604 assert(protocol != AVAHI_PROTO_UNSPEC);
606 if (!(hw = avahi_interface_monitor_get_hw_interface(m, idx)))
609 for (i = hw->interfaces; i; i = i->by_hardware_next)
610 if (i->protocol == protocol)
616 AvahiHwInterface* avahi_interface_monitor_get_hw_interface(AvahiInterfaceMonitor *m, AvahiIfIndex idx) {
620 return avahi_hashmap_lookup(m->hashmap, &idx);
623 void avahi_interface_send_packet_unicast(AvahiInterface *i, AvahiDnsPacket *p, const AvahiAddress *a, uint16_t port) {
628 if (!avahi_interface_relevant(i))
631 assert(!a || a->family == i->protocol);
634 /* avahi_log_debug("unicast sending on '%s.%i' to %s:%u", i->hardware->name, i->protocol, avahi_address_snprint(t, sizeof(t), a), port); */
636 /* avahi_log_debug("multicast sending on '%s.%i'", i->hardware->name, i->protocol); */
638 if (i->protocol == AVAHI_PROTO_INET && i->monitor->server->fd_ipv4 >= 0)
639 avahi_send_dns_packet_ipv4(i->monitor->server->fd_ipv4, i->hardware->index, p, a ? &a->data.ipv4 : NULL, port);
640 else if (i->protocol == AVAHI_PROTO_INET6 && i->monitor->server->fd_ipv6 >= 0)
641 avahi_send_dns_packet_ipv6(i->monitor->server->fd_ipv6, i->hardware->index, p, a ? &a->data.ipv6 : NULL, port);
644 void avahi_interface_send_packet(AvahiInterface *i, AvahiDnsPacket *p) {
648 avahi_interface_send_packet_unicast(i, p, NULL, 0);
651 int avahi_interface_post_query(AvahiInterface *i, AvahiKey *key, int immediately) {
655 if (avahi_interface_relevant(i))
656 return avahi_query_scheduler_post(i->query_scheduler, key, immediately);
661 int avahi_interface_post_response(AvahiInterface *i, AvahiRecord *record, int flush_cache, const AvahiAddress *querier, int immediately) {
665 if (avahi_interface_relevant(i))
666 return avahi_response_scheduler_post(i->response_scheduler, record, flush_cache, querier, immediately);
671 int avahi_interface_post_probe(AvahiInterface *i, AvahiRecord *record, int immediately) {
675 if (avahi_interface_relevant(i))
676 return avahi_probe_scheduler_post(i->probe_scheduler, record, immediately);
681 int avahi_dump_caches(AvahiInterfaceMonitor *m, AvahiDumpCallback callback, void* userdata) {
685 for (i = m->interfaces; i; i = i->interface_next) {
686 if (avahi_interface_relevant(i)) {
688 snprintf(ln, sizeof(ln), ";;; INTERFACE %s.%i ;;;", i->hardware->name, i->protocol);
689 callback(ln, userdata);
690 if (avahi_cache_dump(i->cache, callback, userdata) < 0)
698 int avahi_interface_relevant(AvahiInterface *i) {
699 AvahiInterfaceAddress *a;
700 int relevant_address;
704 relevant_address = 0;
706 for (a = i->addresses; a; a = a->address_next)
707 if (avahi_interface_address_relevant(a)) {
708 relevant_address = 1;
712 /* avahi_log_debug("%p. iface-relevant: %i %i %i %i %i %i", i, relevant_address, */
713 /* (i->hardware->flags & IFF_UP), */
714 /* (i->hardware->flags & IFF_RUNNING), */
715 /* !(i->hardware->flags & IFF_LOOPBACK), */
716 /* (i->hardware->flags & IFF_MULTICAST), */
717 /* !(i->hardware->flags & IFF_POINTOPOINT)); */
720 (i->hardware->flags & IFF_UP) &&
721 (!i->monitor->server->config.use_iff_running || (i->hardware->flags & IFF_RUNNING)) &&
722 !(i->hardware->flags & IFF_LOOPBACK) &&
723 (i->hardware->flags & IFF_MULTICAST) &&
724 !(i->hardware->flags & IFF_POINTOPOINT) &&
728 int avahi_interface_address_relevant(AvahiInterfaceAddress *a) {
729 AvahiInterfaceAddress *b;
732 /* Publish public IP addresses */
733 if (a->scope == RT_SCOPE_UNIVERSE ||
734 a->scope == RT_SCOPE_SITE)
737 if (a->scope == RT_SCOPE_LINK) {
739 /* Publish link local IP addresses if they are the only ones on the link */
740 for (b = a->interface->addresses; b; b = b->address_next) {
744 if (b->scope == RT_SCOPE_UNIVERSE ||
745 b->scope == RT_SCOPE_SITE)
755 int avahi_interface_match(AvahiInterface *i, AvahiIfIndex idx, AvahiProtocol protocol) {
758 if (idx > 0 && idx != i->hardware->index)
761 if (protocol != AVAHI_PROTO_UNSPEC && protocol != i->protocol)
767 void avahi_interface_monitor_walk(AvahiInterfaceMonitor *m, AvahiIfIndex interface, AvahiProtocol protocol, AvahiInterfaceMonitorWalkCallback callback, void* userdata) {
772 if (protocol != AVAHI_PROTO_UNSPEC) {
775 if ((i = avahi_interface_monitor_get_interface(m, interface, protocol)))
776 callback(m, i, userdata);
779 AvahiHwInterface *hw;
782 if ((hw = avahi_interface_monitor_get_hw_interface(m, interface)))
783 for (i = hw->interfaces; i; i = i->by_hardware_next)
784 if (avahi_interface_match(i, interface, protocol))
785 callback(m, i, userdata);
791 for (i = m->interfaces; i; i = i->interface_next)
792 if (avahi_interface_match(i, interface, protocol))
793 callback(m, i, userdata);
797 void avahi_update_host_rrs(AvahiInterfaceMonitor *m, int remove_rrs) {
798 AvahiHwInterface *hw;
802 for (hw = m->hw_interfaces; hw; hw = hw->hardware_next)
803 update_hw_interface_rr(m, hw, remove_rrs);
806 int avahi_address_is_local(AvahiInterfaceMonitor *m, const AvahiAddress *a) {
808 AvahiInterfaceAddress *ia;
812 for (i = m->interfaces; i; i = i->interface_next)
813 for (ia = i->addresses; ia; ia = ia->address_next)
814 if (avahi_address_cmp(a, &ia->address) == 0)
820 int avahi_interface_address_on_link(AvahiInterface *i, const AvahiAddress *a) {
821 AvahiInterfaceAddress *ia;
826 if (a->family != i->protocol)
829 for (ia = i->addresses; ia; ia = ia->address_next) {
831 if (a->family == AVAHI_PROTO_INET) {
834 m = ~(((uint32_t) -1) >> ia->prefix_len);
836 if ((ntohl(a->data.ipv4.address) & m) == (ntohl(ia->address.data.ipv4.address) & m))
841 assert(a->family == AVAHI_PROTO_INET6);
845 for (j = 0; j < 16; j++) {
859 if ((a->data.ipv6.address[j] & m) != (ia->address.data.ipv6.address[j] & m))
868 int avahi_interface_has_address(AvahiInterfaceMonitor *m, AvahiIfIndex iface, const AvahiAddress *a) {
870 AvahiInterfaceAddress *j;
873 assert(iface != AVAHI_IF_UNSPEC);
876 if (!(i = avahi_interface_monitor_get_interface(m, iface, a->family)))
879 for (j = i->addresses; j; j = j->address_next)
880 if (avahi_address_cmp(a, &j->address) == 0)