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74b2466e LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2014 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <net/if.h> | |
23 | ||
24 | #include "sd-network.h" | |
74b2466e | 25 | #include "strv.h" |
ec2c5e43 | 26 | #include "missing.h" |
74b2466e LP |
27 | #include "resolved-link.h" |
28 | ||
29 | int link_new(Manager *m, Link **ret, int ifindex) { | |
30 | _cleanup_(link_freep) Link *l = NULL; | |
31 | int r; | |
32 | ||
33 | assert(m); | |
34 | assert(ifindex > 0); | |
35 | ||
36 | r = hashmap_ensure_allocated(&m->links, NULL, NULL); | |
37 | if (r < 0) | |
38 | return r; | |
39 | ||
40 | l = new0(Link, 1); | |
41 | if (!l) | |
42 | return -ENOMEM; | |
43 | ||
44 | l->ifindex = ifindex; | |
19b50b5b | 45 | l->llmnr_support = SUPPORT_YES; |
74b2466e LP |
46 | |
47 | r = hashmap_put(m->links, INT_TO_PTR(ifindex), l); | |
48 | if (r < 0) | |
49 | return r; | |
50 | ||
51 | l->manager = m; | |
52 | ||
53 | if (ret) | |
54 | *ret = l; | |
55 | l = NULL; | |
56 | ||
57 | return 0; | |
58 | } | |
59 | ||
60 | Link *link_free(Link *l) { | |
61 | ||
62 | if (!l) | |
63 | return NULL; | |
64 | ||
65 | while (l->addresses) | |
66 | link_address_free(l->addresses); | |
67 | ||
68 | if (l->manager) | |
69 | hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex)); | |
70 | ||
71 | dns_scope_free(l->unicast_scope); | |
1716f6dc LP |
72 | dns_scope_free(l->llmnr_ipv4_scope); |
73 | dns_scope_free(l->llmnr_ipv6_scope); | |
74b2466e | 74 | |
6073b6f2 TG |
75 | while (l->dns_servers) |
76 | dns_server_free(l->dns_servers); | |
74b2466e LP |
77 | |
78 | free(l); | |
79 | return NULL; | |
1716f6dc LP |
80 | } |
81 | ||
82 | static void link_allocate_scopes(Link *l) { | |
83 | int r; | |
84 | ||
85 | assert(l); | |
86 | ||
6073b6f2 | 87 | if (l->dns_servers) { |
1716f6dc LP |
88 | if (!l->unicast_scope) { |
89 | r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC); | |
90 | if (r < 0) | |
91 | log_warning("Failed to allocate DNS scope: %s", strerror(-r)); | |
92 | } | |
93 | } else | |
94 | l->unicast_scope = dns_scope_free(l->unicast_scope); | |
95 | ||
90ab5042 LP |
96 | if (link_relevant(l, AF_INET) && |
97 | l->llmnr_support != SUPPORT_NO && | |
db97a66a | 98 | l->manager->llmnr_support != SUPPORT_NO) { |
1716f6dc LP |
99 | if (!l->llmnr_ipv4_scope) { |
100 | r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET); | |
101 | if (r < 0) | |
102 | log_warning("Failed to allocate LLMNR IPv4 scope: %s", strerror(-r)); | |
103 | } | |
104 | } else | |
105 | l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope); | |
106 | ||
90ab5042 LP |
107 | if (link_relevant(l, AF_INET6) && |
108 | l->llmnr_support != SUPPORT_NO && | |
109 | l->manager->llmnr_support != SUPPORT_NO && | |
db97a66a | 110 | socket_ipv6_is_supported()) { |
1716f6dc LP |
111 | if (!l->llmnr_ipv6_scope) { |
112 | r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6); | |
113 | if (r < 0) | |
114 | log_warning("Failed to allocate LLMNR IPv6 scope: %s", strerror(-r)); | |
115 | } | |
116 | } else | |
117 | l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope); | |
118 | } | |
74b2466e | 119 | |
ec2c5e43 | 120 | void link_add_rrs(Link *l, bool force_remove) { |
623a4c97 LP |
121 | LinkAddress *a; |
122 | ||
123 | LIST_FOREACH(addresses, a, l->addresses) | |
ec2c5e43 | 124 | link_address_add_rrs(a, force_remove); |
623a4c97 LP |
125 | } |
126 | ||
74b2466e | 127 | int link_update_rtnl(Link *l, sd_rtnl_message *m) { |
1716f6dc | 128 | const char *n = NULL; |
74b2466e LP |
129 | int r; |
130 | ||
131 | assert(l); | |
132 | assert(m); | |
133 | ||
134 | r = sd_rtnl_message_link_get_flags(m, &l->flags); | |
135 | if (r < 0) | |
136 | return r; | |
137 | ||
c5ed9316 | 138 | sd_rtnl_message_read_u32(m, IFLA_MTU, &l->mtu); |
1716f6dc LP |
139 | |
140 | if (sd_rtnl_message_read_string(m, IFLA_IFNAME, &n) >= 0) { | |
cc7844e7 | 141 | strncpy(l->name, n, sizeof(l->name)-1); |
1716f6dc LP |
142 | char_array_0(l->name); |
143 | } | |
144 | ||
145 | link_allocate_scopes(l); | |
ec2c5e43 | 146 | link_add_rrs(l, false); |
623a4c97 | 147 | |
74b2466e LP |
148 | return 0; |
149 | } | |
150 | ||
6073b6f2 | 151 | static int link_update_dns_servers(Link *l) { |
6f4dedb2 TG |
152 | _cleanup_strv_free_ char **nameservers = NULL; |
153 | char **nameserver; | |
74b2466e | 154 | DnsServer *s, *nx; |
6f4dedb2 | 155 | int r; |
74b2466e LP |
156 | |
157 | assert(l); | |
158 | ||
d6731e4c | 159 | r = sd_network_link_get_dns(l->ifindex, &nameservers); |
6f4dedb2 | 160 | if (r < 0) |
74b2466e | 161 | goto clear; |
74b2466e | 162 | |
5cb36f41 LP |
163 | LIST_FOREACH(servers, s, l->dns_servers) |
164 | s->marked = true; | |
165 | ||
6f4dedb2 TG |
166 | STRV_FOREACH(nameserver, nameservers) { |
167 | union in_addr_union a; | |
168 | int family; | |
74b2466e | 169 | |
6f4dedb2 TG |
170 | r = in_addr_from_string_auto(*nameserver, &family, &a); |
171 | if (r < 0) | |
172 | goto clear; | |
74b2466e | 173 | |
6f4dedb2 | 174 | s = link_find_dns_server(l, family, &a); |
74b2466e LP |
175 | if (s) |
176 | s->marked = false; | |
177 | else { | |
4e945a6f | 178 | r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, family, &a); |
74b2466e LP |
179 | if (r < 0) |
180 | goto clear; | |
181 | } | |
182 | } | |
183 | ||
6073b6f2 | 184 | LIST_FOREACH_SAFE(servers, s, nx, l->dns_servers) |
74b2466e LP |
185 | if (s->marked) |
186 | dns_server_free(s); | |
187 | ||
188 | return 0; | |
189 | ||
190 | clear: | |
6073b6f2 TG |
191 | while (l->dns_servers) |
192 | dns_server_free(l->dns_servers); | |
74b2466e LP |
193 | |
194 | return r; | |
195 | } | |
196 | ||
19b50b5b LP |
197 | static int link_update_llmnr_support(Link *l) { |
198 | _cleanup_free_ char *b = NULL; | |
199 | int r; | |
200 | ||
201 | assert(l); | |
202 | ||
d6731e4c | 203 | r = sd_network_link_get_llmnr(l->ifindex, &b); |
19b50b5b LP |
204 | if (r < 0) |
205 | goto clear; | |
206 | ||
207 | r = parse_boolean(b); | |
208 | if (r < 0) { | |
209 | if (streq(b, "resolve")) | |
210 | l->llmnr_support = SUPPORT_RESOLVE; | |
211 | else | |
212 | goto clear; | |
213 | ||
214 | } else if (r > 0) | |
215 | l->llmnr_support = SUPPORT_YES; | |
216 | else | |
217 | l->llmnr_support = SUPPORT_NO; | |
218 | ||
219 | return 0; | |
220 | ||
221 | clear: | |
222 | l->llmnr_support = SUPPORT_YES; | |
223 | return r; | |
224 | } | |
225 | ||
bda2c408 TG |
226 | static int link_update_domains(Link *l) { |
227 | int r; | |
228 | ||
229 | if (!l->unicast_scope) | |
230 | return 0; | |
231 | ||
232 | strv_free(l->unicast_scope->domains); | |
233 | l->unicast_scope->domains = NULL; | |
234 | ||
235 | r = sd_network_link_get_domains(l->ifindex, | |
236 | &l->unicast_scope->domains); | |
237 | if (r < 0) | |
238 | return r; | |
239 | ||
240 | return 0; | |
241 | } | |
242 | ||
74b2466e LP |
243 | int link_update_monitor(Link *l) { |
244 | assert(l); | |
245 | ||
6073b6f2 | 246 | link_update_dns_servers(l); |
19b50b5b | 247 | link_update_llmnr_support(l); |
1716f6dc | 248 | link_allocate_scopes(l); |
bda2c408 | 249 | link_update_domains(l); |
ec2c5e43 | 250 | link_add_rrs(l, false); |
74b2466e LP |
251 | |
252 | return 0; | |
253 | } | |
254 | ||
0dd25fb9 | 255 | bool link_relevant(Link *l, int family) { |
1716f6dc | 256 | _cleanup_free_ char *state = NULL; |
74b2466e LP |
257 | LinkAddress *a; |
258 | ||
259 | assert(l); | |
260 | ||
ec2c5e43 LP |
261 | /* A link is relevant if it isn't a loopback or pointopoint |
262 | * device, has a link beat, can do multicast and has at least | |
263 | * one relevant IP address */ | |
264 | ||
265 | if (l->flags & (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_DORMANT)) | |
266 | return false; | |
74b2466e | 267 | |
ec2c5e43 | 268 | if ((l->flags & (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) != (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) |
74b2466e LP |
269 | return false; |
270 | ||
d6731e4c | 271 | sd_network_link_get_operational_state(l->ifindex, &state); |
1716f6dc | 272 | if (state && !STR_IN_SET(state, "unknown", "degraded", "routable")) |
74b2466e LP |
273 | return false; |
274 | ||
275 | LIST_FOREACH(addresses, a, l->addresses) | |
1716f6dc | 276 | if (a->family == family && link_address_relevant(a)) |
74b2466e LP |
277 | return true; |
278 | ||
279 | return false; | |
280 | } | |
281 | ||
623a4c97 | 282 | LinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) { |
74b2466e LP |
283 | LinkAddress *a; |
284 | ||
285 | assert(l); | |
286 | ||
1716f6dc LP |
287 | LIST_FOREACH(addresses, a, l->addresses) |
288 | if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr)) | |
74b2466e | 289 | return a; |
74b2466e LP |
290 | |
291 | return NULL; | |
292 | } | |
293 | ||
623a4c97 | 294 | DnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr) { |
6073b6f2 | 295 | DnsServer *s; |
74b2466e LP |
296 | |
297 | assert(l); | |
298 | ||
6073b6f2 | 299 | LIST_FOREACH(servers, s, l->dns_servers) |
1716f6dc | 300 | if (s->family == family && in_addr_equal(family, &s->address, in_addr)) |
74b2466e | 301 | return s; |
74b2466e LP |
302 | return NULL; |
303 | } | |
304 | ||
2c27fbca | 305 | DnsServer* link_set_dns_server(Link *l, DnsServer *s) { |
4e945a6f LP |
306 | assert(l); |
307 | ||
308 | if (l->current_dns_server == s) | |
309 | return s; | |
310 | ||
311 | if (s) { | |
312 | _cleanup_free_ char *ip = NULL; | |
313 | ||
314 | in_addr_to_string(s->family, &s->address, &ip); | |
315 | log_info("Switching to DNS server %s for interface %s.", strna(ip), l->name); | |
2c27fbca | 316 | } |
4e945a6f LP |
317 | |
318 | l->current_dns_server = s; | |
2c27fbca LP |
319 | |
320 | if (l->unicast_scope) | |
321 | dns_cache_flush(&l->unicast_scope->cache); | |
322 | ||
4e945a6f LP |
323 | return s; |
324 | } | |
325 | ||
74b2466e LP |
326 | DnsServer *link_get_dns_server(Link *l) { |
327 | assert(l); | |
328 | ||
329 | if (!l->current_dns_server) | |
4e945a6f | 330 | link_set_dns_server(l, l->dns_servers); |
74b2466e LP |
331 | |
332 | return l->current_dns_server; | |
333 | } | |
334 | ||
335 | void link_next_dns_server(Link *l) { | |
336 | assert(l); | |
337 | ||
74b2466e LP |
338 | if (!l->current_dns_server) |
339 | return; | |
340 | ||
341 | if (l->current_dns_server->servers_next) { | |
4e945a6f | 342 | link_set_dns_server(l, l->current_dns_server->servers_next); |
74b2466e LP |
343 | return; |
344 | } | |
345 | ||
4e945a6f | 346 | link_set_dns_server(l, l->dns_servers); |
74b2466e LP |
347 | } |
348 | ||
623a4c97 | 349 | int link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) { |
74b2466e LP |
350 | LinkAddress *a; |
351 | ||
352 | assert(l); | |
353 | assert(in_addr); | |
354 | ||
355 | a = new0(LinkAddress, 1); | |
356 | if (!a) | |
357 | return -ENOMEM; | |
358 | ||
359 | a->family = family; | |
360 | a->in_addr = *in_addr; | |
361 | ||
362 | a->link = l; | |
363 | LIST_PREPEND(addresses, l->addresses, a); | |
364 | ||
365 | if (ret) | |
366 | *ret = a; | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | LinkAddress *link_address_free(LinkAddress *a) { | |
372 | if (!a) | |
373 | return NULL; | |
374 | ||
623a4c97 | 375 | if (a->link) { |
74b2466e LP |
376 | LIST_REMOVE(addresses, a->link->addresses, a); |
377 | ||
623a4c97 | 378 | if (a->llmnr_address_rr) { |
623a4c97 LP |
379 | if (a->family == AF_INET && a->link->llmnr_ipv4_scope) |
380 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr); | |
381 | else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope) | |
382 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr); | |
623a4c97 LP |
383 | } |
384 | ||
385 | if (a->llmnr_ptr_rr) { | |
386 | if (a->family == AF_INET && a->link->llmnr_ipv4_scope) | |
387 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr); | |
388 | else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope) | |
389 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr); | |
623a4c97 LP |
390 | } |
391 | } | |
392 | ||
ec2c5e43 LP |
393 | dns_resource_record_unref(a->llmnr_address_rr); |
394 | dns_resource_record_unref(a->llmnr_ptr_rr); | |
395 | ||
74b2466e LP |
396 | free(a); |
397 | return NULL; | |
398 | } | |
399 | ||
ec2c5e43 | 400 | void link_address_add_rrs(LinkAddress *a, bool force_remove) { |
623a4c97 LP |
401 | int r; |
402 | ||
403 | assert(a); | |
404 | ||
ec2c5e43 | 405 | if (a->family == AF_INET) { |
623a4c97 | 406 | |
4e945a6f LP |
407 | if (!force_remove && |
408 | link_address_relevant(a) && | |
409 | a->link->llmnr_ipv4_scope && | |
19b50b5b | 410 | a->link->llmnr_support == SUPPORT_YES && |
4e945a6f LP |
411 | a->link->manager->llmnr_support == SUPPORT_YES) { |
412 | ||
623a4c97 | 413 | if (!a->link->manager->host_ipv4_key) { |
ec2c5e43 LP |
414 | a->link->manager->host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->hostname); |
415 | if (!a->link->manager->host_ipv4_key) { | |
416 | r = -ENOMEM; | |
417 | goto fail; | |
418 | } | |
623a4c97 | 419 | } |
623a4c97 | 420 | |
623a4c97 | 421 | if (!a->llmnr_address_rr) { |
ec2c5e43 LP |
422 | a->llmnr_address_rr = dns_resource_record_new(a->link->manager->host_ipv4_key); |
423 | if (!a->llmnr_address_rr) { | |
424 | r = -ENOMEM; | |
425 | goto fail; | |
426 | } | |
427 | ||
428 | a->llmnr_address_rr->a.in_addr = a->in_addr.in; | |
429 | a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL; | |
623a4c97 LP |
430 | } |
431 | ||
ec2c5e43 LP |
432 | if (!a->llmnr_ptr_rr) { |
433 | r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->hostname); | |
434 | if (r < 0) | |
435 | goto fail; | |
623a4c97 | 436 | |
ec2c5e43 LP |
437 | a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL; |
438 | } | |
623a4c97 | 439 | |
ec2c5e43 | 440 | r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_address_rr, true); |
623a4c97 | 441 | if (r < 0) |
cc7844e7 | 442 | log_warning("Failed to add A record to LLMNR zone: %s", strerror(-r)); |
623a4c97 | 443 | |
ec2c5e43 | 444 | r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_ptr_rr, false); |
623a4c97 | 445 | if (r < 0) |
cc7844e7 | 446 | log_warning("Failed to add IPv6 PTR record to LLMNR zone: %s", strerror(-r)); |
623a4c97 | 447 | } else { |
ec2c5e43 LP |
448 | if (a->llmnr_address_rr) { |
449 | if (a->link->llmnr_ipv4_scope) | |
450 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr); | |
451 | a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr); | |
452 | } | |
453 | ||
454 | if (a->llmnr_ptr_rr) { | |
455 | if (a->link->llmnr_ipv4_scope) | |
456 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr); | |
457 | a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); | |
458 | } | |
623a4c97 LP |
459 | } |
460 | } | |
461 | ||
ec2c5e43 | 462 | if (a->family == AF_INET6) { |
623a4c97 | 463 | |
4e945a6f LP |
464 | if (!force_remove && |
465 | link_address_relevant(a) && | |
466 | a->link->llmnr_ipv6_scope && | |
19b50b5b | 467 | a->link->llmnr_support == SUPPORT_YES && |
4e945a6f LP |
468 | a->link->manager->llmnr_support == SUPPORT_YES) { |
469 | ||
623a4c97 | 470 | if (!a->link->manager->host_ipv6_key) { |
ec2c5e43 LP |
471 | a->link->manager->host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->hostname); |
472 | if (!a->link->manager->host_ipv6_key) { | |
473 | r = -ENOMEM; | |
474 | goto fail; | |
475 | } | |
623a4c97 | 476 | } |
623a4c97 | 477 | |
623a4c97 | 478 | if (!a->llmnr_address_rr) { |
ec2c5e43 LP |
479 | a->llmnr_address_rr = dns_resource_record_new(a->link->manager->host_ipv6_key); |
480 | if (!a->llmnr_address_rr) { | |
481 | r = -ENOMEM; | |
482 | goto fail; | |
483 | } | |
484 | ||
485 | a->llmnr_address_rr->aaaa.in6_addr = a->in_addr.in6; | |
486 | a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL; | |
623a4c97 LP |
487 | } |
488 | ||
ec2c5e43 LP |
489 | if (!a->llmnr_ptr_rr) { |
490 | r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->hostname); | |
491 | if (r < 0) | |
492 | goto fail; | |
623a4c97 | 493 | |
ec2c5e43 LP |
494 | a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL; |
495 | } | |
623a4c97 | 496 | |
ec2c5e43 | 497 | r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_address_rr, true); |
623a4c97 | 498 | if (r < 0) |
ec2c5e43 | 499 | log_warning("Failed to add AAAA record to LLMNR zone: %s", strerror(-r)); |
623a4c97 | 500 | |
ec2c5e43 | 501 | r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_ptr_rr, false); |
623a4c97 | 502 | if (r < 0) |
ec2c5e43 | 503 | log_warning("Failed to add IPv6 PTR record to LLMNR zone: %s", strerror(-r)); |
623a4c97 | 504 | } else { |
ec2c5e43 LP |
505 | if (a->llmnr_address_rr) { |
506 | if (a->link->llmnr_ipv6_scope) | |
507 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr); | |
508 | a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr); | |
509 | } | |
510 | ||
511 | if (a->llmnr_ptr_rr) { | |
512 | if (a->link->llmnr_ipv6_scope) | |
513 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr); | |
514 | a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); | |
515 | } | |
623a4c97 LP |
516 | } |
517 | } | |
518 | ||
519 | return; | |
520 | ||
521 | fail: | |
522 | log_debug("Failed to update address RRs: %s", strerror(-r)); | |
523 | } | |
524 | ||
74b2466e LP |
525 | int link_address_update_rtnl(LinkAddress *a, sd_rtnl_message *m) { |
526 | int r; | |
527 | assert(a); | |
528 | assert(m); | |
529 | ||
530 | r = sd_rtnl_message_addr_get_flags(m, &a->flags); | |
531 | if (r < 0) | |
532 | return r; | |
533 | ||
1716f6dc | 534 | sd_rtnl_message_addr_get_scope(m, &a->scope); |
74b2466e | 535 | |
1716f6dc | 536 | link_allocate_scopes(a->link); |
ec2c5e43 | 537 | link_add_rrs(a->link, false); |
623a4c97 | 538 | |
74b2466e LP |
539 | return 0; |
540 | } | |
541 | ||
542 | bool link_address_relevant(LinkAddress *a) { | |
543 | assert(a); | |
544 | ||
7b85d72f | 545 | if (a->flags & (IFA_F_DEPRECATED|IFA_F_TENTATIVE)) |
74b2466e LP |
546 | return false; |
547 | ||
548 | if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE)) | |
549 | return false; | |
550 | ||
551 | return true; | |
552 | } |