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 (a->interface->announcing &&
51 m->list == LIST_DONE &&
52 avahi_interface_address_relevant(a) &&
54 m->server->config.publish_addresses &&
55 (m->server->state == AVAHI_SERVER_RUNNING ||
56 m->server->state == AVAHI_SERVER_REGISTERING)) {
58 /* Fill the entry group */
60 a->entry_group = avahi_s_entry_group_new(m->server, avahi_host_rr_entry_group_callback, NULL);
62 if (!a->entry_group) /* OOM */
65 if (avahi_s_entry_group_is_empty(a->entry_group)) {
67 avahi_address_snprint(t, sizeof(t), &a->address);
69 avahi_log_info("Registering new address %s on %s.", t, a->interface->hardware->name);
71 if (avahi_server_add_address(m->server, a->entry_group, a->interface->hardware->index, a->interface->protocol, 0, NULL, &a->address) < 0) {
72 avahi_log_warn(__FILE__": avahi_server_add_address() failed: %s", avahi_strerror(m->server->error));
73 avahi_s_entry_group_free(a->entry_group);
74 a->entry_group = NULL;
78 avahi_s_entry_group_commit(a->entry_group);
82 /* Clear the entry group */
84 if (a->entry_group && !avahi_s_entry_group_is_empty(a->entry_group)) {
86 avahi_address_snprint(t, sizeof(t), &a->address);
88 if (avahi_s_entry_group_get_state(a->entry_group) == AVAHI_ENTRY_GROUP_REGISTERING &&
89 m->server->state == AVAHI_SERVER_REGISTERING)
90 avahi_server_decrease_host_rr_pending(m->server);
92 avahi_log_info("Withdrawing address %s on %s.", t, a->interface->hardware->name);
94 avahi_s_entry_group_reset(a->entry_group);
99 static void update_interface_rr(AvahiInterfaceMonitor *m, AvahiInterface *i, int remove_rrs) {
100 AvahiInterfaceAddress *a;
105 for (a = i->addresses; a; a = a->address_next)
106 update_address_rr(m, a, remove_rrs);
109 static void update_hw_interface_rr(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, int remove_rrs) {
115 for (i = hw->interfaces; i; i = i->by_hardware_next)
116 update_interface_rr(m, i, remove_rrs);
118 if (m->list == LIST_DONE &&
120 m->server->config.publish_workstation &&
121 (m->server->state == AVAHI_SERVER_RUNNING ||
122 m->server->state == AVAHI_SERVER_REGISTERING)) {
124 if (!hw->entry_group)
125 hw->entry_group = avahi_s_entry_group_new(m->server, avahi_host_rr_entry_group_callback, NULL);
127 if (!hw->entry_group)
130 if (avahi_s_entry_group_is_empty(hw->entry_group)) {
134 if (!(t = avahi_format_mac_address(hw->mac_address, hw->mac_address_size)))
137 name = avahi_strdup_printf("%s [%s]", m->server->host_name, t);
143 if (avahi_server_add_service(m->server, hw->entry_group, hw->index, AVAHI_PROTO_UNSPEC, name, "_workstation._tcp", NULL, NULL, 9, NULL) < 0) {
144 avahi_log_warn(__FILE__": avahi_server_add_service() failed.");
145 avahi_s_entry_group_free(hw->entry_group);
146 hw->entry_group = NULL;
148 avahi_s_entry_group_commit(hw->entry_group);
155 if (hw->entry_group && !avahi_s_entry_group_is_empty(hw->entry_group)) {
157 if (avahi_s_entry_group_get_state(hw->entry_group) == AVAHI_ENTRY_GROUP_REGISTERING)
158 avahi_server_decrease_host_rr_pending(m->server);
160 avahi_s_entry_group_reset(hw->entry_group);
165 static void free_address(AvahiInterfaceMonitor *m, AvahiInterfaceAddress *a) {
168 assert(a->interface);
170 update_address_rr(m, a, 1);
171 AVAHI_LLIST_REMOVE(AvahiInterfaceAddress, address, a->interface->addresses, a);
174 avahi_s_entry_group_free(a->entry_group);
179 static void free_interface(AvahiInterfaceMonitor *m, AvahiInterface *i, int send_goodbye) {
183 avahi_goodbye_interface(m->server, i, send_goodbye);
184 avahi_response_scheduler_force(i->response_scheduler);
186 assert(!i->announcements);
188 update_interface_rr(m, i, 1);
191 free_address(m, i->addresses);
193 avahi_response_scheduler_free(i->response_scheduler);
194 avahi_query_scheduler_free(i->query_scheduler);
195 avahi_probe_scheduler_free(i->probe_scheduler);
196 avahi_cache_free(i->cache);
198 AVAHI_LLIST_REMOVE(AvahiInterface, interface, m->interfaces, i);
199 AVAHI_LLIST_REMOVE(AvahiInterface, by_hardware, i->hardware->interfaces, i);
204 static void free_hw_interface(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, int send_goodbye) {
208 update_hw_interface_rr(m, hw, 1);
210 while (hw->interfaces)
211 free_interface(m, hw->interfaces, send_goodbye);
214 avahi_s_entry_group_free(hw->entry_group);
216 AVAHI_LLIST_REMOVE(AvahiHwInterface, hardware, m->hw_interfaces, hw);
217 avahi_hashmap_remove(m->hashmap, &hw->index);
219 avahi_free(hw->name);
223 static AvahiInterfaceAddress* get_address(AvahiInterfaceMonitor *m, AvahiInterface *i, const AvahiAddress *raddr) {
224 AvahiInterfaceAddress *ia;
230 for (ia = i->addresses; ia; ia = ia->address_next)
231 if (avahi_address_cmp(&ia->address, raddr) == 0)
237 static int netlink_list_items(AvahiNetlink *nl, uint16_t type, unsigned *ret_seq) {
239 struct rtgenmsg *gen;
242 memset(&req, 0, sizeof(req));
243 n = (struct nlmsghdr*) req;
244 n->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg));
245 n->nlmsg_type = type;
246 n->nlmsg_flags = NLM_F_ROOT|NLM_F_REQUEST;
250 memset(gen, 0, sizeof(struct rtgenmsg));
251 gen->rtgen_family = AF_UNSPEC;
253 return avahi_netlink_send(nl, n, ret_seq);
256 static void new_interface(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, AvahiProtocol protocol) {
261 assert(protocol != AVAHI_PROTO_UNSPEC);
263 if (!(i = avahi_new(AvahiInterface, 1)))
268 i->protocol = protocol;
271 AVAHI_LLIST_HEAD_INIT(AvahiInterfaceAddress, i->addresses);
272 AVAHI_LLIST_HEAD_INIT(AvahiAnnouncement, i->announcements);
274 i->cache = avahi_cache_new(m->server, i);
275 i->response_scheduler = avahi_response_scheduler_new(i);
276 i->query_scheduler = avahi_query_scheduler_new(i);
277 i->probe_scheduler = avahi_probe_scheduler_new(i);
279 if (!i->cache || !i->response_scheduler || !i->query_scheduler || !i->probe_scheduler)
282 AVAHI_LLIST_PREPEND(AvahiInterface, by_hardware, hw->interfaces, i);
283 AVAHI_LLIST_PREPEND(AvahiInterface, interface, m->interfaces, i);
290 avahi_cache_free(i->cache);
291 if (i->response_scheduler)
292 avahi_response_scheduler_free(i->response_scheduler);
293 if (i->query_scheduler)
294 avahi_query_scheduler_free(i->query_scheduler);
295 if (i->probe_scheduler)
296 avahi_probe_scheduler_free(i->probe_scheduler);
301 static void check_interface_relevant(AvahiInterfaceMonitor *m, AvahiInterface *i) {
307 b = avahi_interface_relevant(i);
309 if (m->list == LIST_DONE && b && !i->announcing) {
310 avahi_log_info("New relevant interface %s.%s.", i->hardware->name, avahi_proto_to_string(i->protocol));
312 if (i->protocol == AVAHI_PROTO_INET)
313 avahi_mdns_mcast_join_ipv4(m->server->fd_ipv4, i->hardware->index);
314 if (i->protocol == AVAHI_PROTO_INET6)
315 avahi_mdns_mcast_join_ipv6(m->server->fd_ipv6, i->hardware->index);
318 avahi_announce_interface(m->server, i);
319 avahi_browser_new_interface(m->server, i);
320 } else if (!b && i->announcing) {
321 avahi_log_info("Interface %s.%s no longer relevant.", i->hardware->name, avahi_proto_to_string(i->protocol));
323 if (i->protocol == AVAHI_PROTO_INET)
324 avahi_mdns_mcast_leave_ipv4(m->server->fd_ipv4, i->hardware->index);
325 if (i->protocol == AVAHI_PROTO_INET6)
326 avahi_mdns_mcast_leave_ipv6(m->server->fd_ipv6, i->hardware->index);
328 avahi_goodbye_interface(m->server, i, 0);
329 avahi_response_scheduler_clear(i->response_scheduler);
330 avahi_query_scheduler_clear(i->query_scheduler);
331 avahi_probe_scheduler_clear(i->probe_scheduler);
332 avahi_cache_flush(i->cache);
338 static void check_hw_interface_relevant(AvahiInterfaceMonitor *m, AvahiHwInterface *hw) {
344 for (i = hw->interfaces; i; i = i->by_hardware_next)
345 check_interface_relevant(m, i);
348 static void check_all_interfaces_relevant(AvahiInterfaceMonitor *m) {
352 for (i = m->interfaces; i; i = i->interface_next)
353 check_interface_relevant(m, i);
356 static void netlink_callback(AvahiNetlink *nl, struct nlmsghdr *n, void* userdata) {
357 AvahiInterfaceMonitor *m = userdata;
361 assert(m->netlink == nl);
363 if (n->nlmsg_type == RTM_NEWLINK) {
364 struct ifinfomsg *ifinfomsg = NLMSG_DATA(n);
365 AvahiHwInterface *hw;
366 struct rtattr *a = NULL;
369 if (ifinfomsg->ifi_family != AF_UNSPEC)
372 if (!(hw = avahi_hashmap_lookup(m->hashmap, &ifinfomsg->ifi_index))) {
374 if (!(hw = avahi_new(AvahiHwInterface, 1)))
381 hw->index = (AvahiIfIndex) ifinfomsg->ifi_index;
382 hw->mac_address_size = 0;
383 hw->entry_group = NULL;
385 AVAHI_LLIST_HEAD_INIT(AvahiInterface, hw->interfaces);
386 AVAHI_LLIST_PREPEND(AvahiHwInterface, hardware, m->hw_interfaces, hw);
388 avahi_hashmap_insert(m->hashmap, &hw->index, hw);
390 if (m->server->fd_ipv4 >= 0)
391 new_interface(m, hw, AVAHI_PROTO_INET);
392 if (m->server->fd_ipv6 >= 0)
393 new_interface(m, hw, AVAHI_PROTO_INET6);
396 hw->flags = ifinfomsg->ifi_flags;
398 l = NLMSG_PAYLOAD(n, sizeof(struct ifinfomsg));
399 a = IFLA_RTA(ifinfomsg);
401 while (RTA_OK(a, l)) {
402 switch(a->rta_type) {
404 avahi_free(hw->name);
405 hw->name = avahi_strndup(RTA_DATA(a), RTA_PAYLOAD(a));
409 assert(RTA_PAYLOAD(a) == sizeof(unsigned int));
410 hw->mtu = *((unsigned int*) RTA_DATA(a));
414 hw->mac_address_size = RTA_PAYLOAD(a);
415 if (hw->mac_address_size > AVAHI_MAX_MAC_ADDRESS)
416 hw->mac_address_size = AVAHI_MAX_MAC_ADDRESS;
418 memcpy(hw->mac_address, RTA_DATA(a), hw->mac_address_size);
429 check_hw_interface_relevant(m, hw);
430 update_hw_interface_rr(m, hw, 0);
432 } else if (n->nlmsg_type == RTM_DELLINK) {
433 struct ifinfomsg *ifinfomsg = NLMSG_DATA(n);
434 AvahiHwInterface *hw;
436 if (ifinfomsg->ifi_family != AF_UNSPEC)
439 if (!(hw = avahi_interface_monitor_get_hw_interface(m, (AvahiIfIndex) ifinfomsg->ifi_index)))
442 free_hw_interface(m, hw, 0);
444 } else if (n->nlmsg_type == RTM_NEWADDR || n->nlmsg_type == RTM_DELADDR) {
446 struct ifaddrmsg *ifaddrmsg = NLMSG_DATA(n);
448 struct rtattr *a = NULL;
453 if (ifaddrmsg->ifa_family != AF_INET && ifaddrmsg->ifa_family != AF_INET6)
456 if (!(i = (AvahiInterface*) avahi_interface_monitor_get_interface(m, (AvahiIfIndex) ifaddrmsg->ifa_index, avahi_af_to_proto(ifaddrmsg->ifa_family))))
459 raddr.proto = avahi_af_to_proto(ifaddrmsg->ifa_family);
461 l = NLMSG_PAYLOAD(n, sizeof(struct ifaddrmsg));
462 a = IFA_RTA(ifaddrmsg);
464 while (RTA_OK(a, l)) {
466 switch(a->rta_type) {
468 if ((raddr.proto == AVAHI_PROTO_INET6 && RTA_PAYLOAD(a) != 16) ||
469 (raddr.proto == AVAHI_PROTO_INET && RTA_PAYLOAD(a) != 4))
472 memcpy(raddr.data.data, RTA_DATA(a), RTA_PAYLOAD(a));
487 if (n->nlmsg_type == RTM_NEWADDR) {
488 AvahiInterfaceAddress *addr;
490 if (!(addr = get_address(m, i, &raddr))) {
491 if (!(addr = avahi_new(AvahiInterfaceAddress, 1)))
495 addr->address = raddr;
497 addr->entry_group = NULL;
499 AVAHI_LLIST_PREPEND(AvahiInterfaceAddress, address, i->addresses, addr);
502 addr->flags = ifaddrmsg->ifa_flags;
503 addr->scope = ifaddrmsg->ifa_scope;
504 addr->prefix_len = ifaddrmsg->ifa_prefixlen;
506 AvahiInterfaceAddress *addr;
508 if (!(addr = get_address(m, i, &raddr)))
511 free_address(m, addr);
514 check_interface_relevant(m, i);
515 update_interface_rr(m, i, 0);
517 } else if (n->nlmsg_type == NLMSG_DONE) {
519 if (m->list == LIST_IFACE) {
521 if (netlink_list_items(m->netlink, RTM_GETADDR, &m->query_addr_seq) < 0) {
522 avahi_log_warn("NETLINK: Failed to list addrs: %s", strerror(errno));
531 if (m->list == LIST_DONE) {
532 check_all_interfaces_relevant(m);
533 avahi_update_host_rrs(m, 0);
534 avahi_log_info("Network interface enumeration completed.");
537 } else if (n->nlmsg_type == NLMSG_ERROR && (n->nlmsg_seq == m->query_link_seq || n->nlmsg_seq == m->query_addr_seq)) {
538 struct nlmsgerr *e = NLMSG_DATA (n);
541 avahi_log_warn("NETLINK: Failed to browse: %s", strerror(-e->error));
545 AvahiInterfaceMonitor *avahi_interface_monitor_new(AvahiServer *s) {
546 AvahiInterfaceMonitor *m = NULL;
548 if (!(m = avahi_new0(AvahiInterfaceMonitor, 1)))
549 return NULL; /* OOM */
552 if (!(m->netlink = avahi_netlink_new(s->poll_api, RTMGRP_LINK|RTMGRP_IPV4_IFADDR|RTMGRP_IPV6_IFADDR, netlink_callback, m)))
555 m->hashmap = avahi_hashmap_new(avahi_int_hash, avahi_int_equal, NULL, NULL);
557 AVAHI_LLIST_HEAD_INIT(AvahiInterface, m->interfaces);
558 AVAHI_LLIST_HEAD_INIT(AvahiHwInterface, m->hw_interfaces);
560 if (netlink_list_items(m->netlink, RTM_GETLINK, &m->query_link_seq) < 0)
563 m->list = LIST_IFACE;
568 avahi_interface_monitor_free(m);
572 void avahi_interface_monitor_sync(AvahiInterfaceMonitor *m) {
575 while (m->list != LIST_DONE) {
576 if (!avahi_netlink_work(m->netlink, 1))
581 void avahi_interface_monitor_free(AvahiInterfaceMonitor *m) {
584 while (m->hw_interfaces)
585 free_hw_interface(m, m->hw_interfaces, 1);
587 assert(!m->interfaces);
591 avahi_netlink_free(m->netlink);
594 avahi_hashmap_free(m->hashmap);
600 AvahiInterface* avahi_interface_monitor_get_interface(AvahiInterfaceMonitor *m, AvahiIfIndex idx, AvahiProtocol protocol) {
601 AvahiHwInterface *hw;
606 assert(protocol != AVAHI_PROTO_UNSPEC);
608 if (!(hw = avahi_interface_monitor_get_hw_interface(m, idx)))
611 for (i = hw->interfaces; i; i = i->by_hardware_next)
612 if (i->protocol == protocol)
618 AvahiHwInterface* avahi_interface_monitor_get_hw_interface(AvahiInterfaceMonitor *m, AvahiIfIndex idx) {
622 return avahi_hashmap_lookup(m->hashmap, &idx);
625 void avahi_interface_send_packet_unicast(AvahiInterface *i, AvahiDnsPacket *p, const AvahiAddress *a, uint16_t port) {
630 if (!avahi_interface_relevant(i))
633 assert(!a || a->proto == i->protocol);
636 /* avahi_log_debug("unicast sending on '%s.%i' to %s:%u", i->hardware->name, i->protocol, avahi_address_snprint(t, sizeof(t), a), port); */
638 /* avahi_log_debug("multicast sending on '%s.%i'", i->hardware->name, i->protocol); */
640 if (i->protocol == AVAHI_PROTO_INET && i->monitor->server->fd_ipv4 >= 0)
641 avahi_send_dns_packet_ipv4(i->monitor->server->fd_ipv4, i->hardware->index, p, a ? &a->data.ipv4 : NULL, port);
642 else if (i->protocol == AVAHI_PROTO_INET6 && i->monitor->server->fd_ipv6 >= 0)
643 avahi_send_dns_packet_ipv6(i->monitor->server->fd_ipv6, i->hardware->index, p, a ? &a->data.ipv6 : NULL, port);
646 void avahi_interface_send_packet(AvahiInterface *i, AvahiDnsPacket *p) {
650 avahi_interface_send_packet_unicast(i, p, NULL, 0);
653 int avahi_interface_post_query(AvahiInterface *i, AvahiKey *key, int immediately) {
657 if (avahi_interface_relevant(i))
658 return avahi_query_scheduler_post(i->query_scheduler, key, immediately);
663 int avahi_interface_post_response(AvahiInterface *i, AvahiRecord *record, int flush_cache, const AvahiAddress *querier, int immediately) {
667 if (avahi_interface_relevant(i))
668 return avahi_response_scheduler_post(i->response_scheduler, record, flush_cache, querier, immediately);
673 int avahi_interface_post_probe(AvahiInterface *i, AvahiRecord *record, int immediately) {
677 if (avahi_interface_relevant(i))
678 return avahi_probe_scheduler_post(i->probe_scheduler, record, immediately);
683 int avahi_dump_caches(AvahiInterfaceMonitor *m, AvahiDumpCallback callback, void* userdata) {
687 for (i = m->interfaces; i; i = i->interface_next) {
688 if (avahi_interface_relevant(i)) {
690 snprintf(ln, sizeof(ln), ";;; INTERFACE %s.%s ;;;", i->hardware->name, avahi_proto_to_string(i->protocol));
691 callback(ln, userdata);
692 if (avahi_cache_dump(i->cache, callback, userdata) < 0)
700 int avahi_interface_relevant(AvahiInterface *i) {
701 AvahiInterfaceAddress *a;
702 int relevant_address;
706 relevant_address = 0;
708 for (a = i->addresses; a; a = a->address_next)
709 if (avahi_interface_address_relevant(a)) {
710 relevant_address = 1;
714 /* avahi_log_debug("%p. iface-relevant: %i %i %i %i %i %i", i, relevant_address, */
715 /* (i->hardware->flags & IFF_UP), */
716 /* (i->hardware->flags & IFF_RUNNING), */
717 /* !(i->hardware->flags & IFF_LOOPBACK), */
718 /* (i->hardware->flags & IFF_MULTICAST), */
719 /* !(i->hardware->flags & IFF_POINTOPOINT)); */
722 (i->hardware->flags & IFF_UP) &&
723 (!i->monitor->server->config.use_iff_running || (i->hardware->flags & IFF_RUNNING)) &&
724 !(i->hardware->flags & IFF_LOOPBACK) &&
725 (i->hardware->flags & IFF_MULTICAST) &&
726 !(i->hardware->flags & IFF_POINTOPOINT) &&
730 int avahi_interface_address_relevant(AvahiInterfaceAddress *a) {
731 AvahiInterfaceAddress *b;
734 /* Publish public IP addresses */
735 if (a->scope == RT_SCOPE_UNIVERSE ||
736 a->scope == RT_SCOPE_SITE)
739 if (a->scope == RT_SCOPE_LINK) {
741 /* Publish link local IP addresses if they are the only ones on the link */
742 for (b = a->interface->addresses; b; b = b->address_next) {
746 if (b->scope == RT_SCOPE_UNIVERSE ||
747 b->scope == RT_SCOPE_SITE)
757 int avahi_interface_match(AvahiInterface *i, AvahiIfIndex idx, AvahiProtocol protocol) {
760 if (idx > 0 && idx != i->hardware->index)
763 if (protocol != AVAHI_PROTO_UNSPEC && protocol != i->protocol)
769 void avahi_interface_monitor_walk(AvahiInterfaceMonitor *m, AvahiIfIndex interface, AvahiProtocol protocol, AvahiInterfaceMonitorWalkCallback callback, void* userdata) {
774 if (protocol != AVAHI_PROTO_UNSPEC) {
777 if ((i = avahi_interface_monitor_get_interface(m, interface, protocol)))
778 callback(m, i, userdata);
781 AvahiHwInterface *hw;
784 if ((hw = avahi_interface_monitor_get_hw_interface(m, interface)))
785 for (i = hw->interfaces; i; i = i->by_hardware_next)
786 if (avahi_interface_match(i, interface, protocol))
787 callback(m, i, userdata);
793 for (i = m->interfaces; i; i = i->interface_next)
794 if (avahi_interface_match(i, interface, protocol))
795 callback(m, i, userdata);
799 void avahi_update_host_rrs(AvahiInterfaceMonitor *m, int remove_rrs) {
800 AvahiHwInterface *hw;
804 for (hw = m->hw_interfaces; hw; hw = hw->hardware_next)
805 update_hw_interface_rr(m, hw, remove_rrs);
808 int avahi_address_is_local(AvahiInterfaceMonitor *m, const AvahiAddress *a) {
810 AvahiInterfaceAddress *ia;
814 for (i = m->interfaces; i; i = i->interface_next)
815 for (ia = i->addresses; ia; ia = ia->address_next)
816 if (avahi_address_cmp(a, &ia->address) == 0)
822 int avahi_interface_address_on_link(AvahiInterface *i, const AvahiAddress *a) {
823 AvahiInterfaceAddress *ia;
828 if (a->proto != i->protocol)
831 for (ia = i->addresses; ia; ia = ia->address_next) {
833 if (a->proto == AVAHI_PROTO_INET) {
836 m = ~(((uint32_t) -1) >> ia->prefix_len);
838 if ((ntohl(a->data.ipv4.address) & m) == (ntohl(ia->address.data.ipv4.address) & m))
843 assert(a->proto == AVAHI_PROTO_INET6);
847 for (j = 0; j < 16; j++) {
861 if ((a->data.ipv6.address[j] & m) != (ia->address.data.ipv6.address[j] & m))
870 int avahi_interface_has_address(AvahiInterfaceMonitor *m, AvahiIfIndex iface, const AvahiAddress *a) {
872 AvahiInterfaceAddress *j;
875 assert(iface != AVAHI_IF_UNSPEC);
878 if (!(i = avahi_interface_monitor_get_interface(m, iface, a->proto)))
881 for (j = i->addresses; j; j = j->address_next)
882 if (avahi_address_cmp(a, &j->address) == 0)