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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 | ||
d5099efc | 36 | r = hashmap_ensure_allocated(&m->links, NULL); |
74b2466e LP |
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) { | |
74b2466e LP |
61 | if (!l) |
62 | return NULL; | |
63 | ||
64 | while (l->addresses) | |
65 | link_address_free(l->addresses); | |
66 | ||
67 | if (l->manager) | |
68 | hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex)); | |
69 | ||
91b14d6f TG |
70 | while (l->dns_servers) { |
71 | DnsServer *s = l->dns_servers; | |
72 | ||
73 | LIST_REMOVE(servers, l->dns_servers, s); | |
74 | dns_server_unref(s); | |
75 | } | |
cab5b059 | 76 | |
74b2466e | 77 | dns_scope_free(l->unicast_scope); |
1716f6dc LP |
78 | dns_scope_free(l->llmnr_ipv4_scope); |
79 | dns_scope_free(l->llmnr_ipv6_scope); | |
74b2466e | 80 | |
74b2466e LP |
81 | free(l); |
82 | return NULL; | |
1716f6dc LP |
83 | } |
84 | ||
85 | static void link_allocate_scopes(Link *l) { | |
86 | int r; | |
87 | ||
88 | assert(l); | |
89 | ||
6073b6f2 | 90 | if (l->dns_servers) { |
1716f6dc LP |
91 | if (!l->unicast_scope) { |
92 | r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC); | |
93 | if (r < 0) | |
da927ba9 | 94 | log_warning_errno(r, "Failed to allocate DNS scope: %m"); |
1716f6dc LP |
95 | } |
96 | } else | |
97 | l->unicast_scope = dns_scope_free(l->unicast_scope); | |
98 | ||
90ab5042 LP |
99 | if (link_relevant(l, AF_INET) && |
100 | l->llmnr_support != SUPPORT_NO && | |
db97a66a | 101 | l->manager->llmnr_support != SUPPORT_NO) { |
1716f6dc LP |
102 | if (!l->llmnr_ipv4_scope) { |
103 | r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET); | |
104 | if (r < 0) | |
da927ba9 | 105 | log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m"); |
1716f6dc LP |
106 | } |
107 | } else | |
108 | l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope); | |
109 | ||
90ab5042 LP |
110 | if (link_relevant(l, AF_INET6) && |
111 | l->llmnr_support != SUPPORT_NO && | |
112 | l->manager->llmnr_support != SUPPORT_NO && | |
db97a66a | 113 | socket_ipv6_is_supported()) { |
1716f6dc LP |
114 | if (!l->llmnr_ipv6_scope) { |
115 | r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6); | |
116 | if (r < 0) | |
da927ba9 | 117 | log_warning_errno(r, "Failed to allocate LLMNR IPv6 scope: %m"); |
1716f6dc LP |
118 | } |
119 | } else | |
120 | l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope); | |
121 | } | |
74b2466e | 122 | |
ec2c5e43 | 123 | void link_add_rrs(Link *l, bool force_remove) { |
623a4c97 LP |
124 | LinkAddress *a; |
125 | ||
126 | LIST_FOREACH(addresses, a, l->addresses) | |
ec2c5e43 | 127 | link_address_add_rrs(a, force_remove); |
623a4c97 LP |
128 | } |
129 | ||
1c4baffc | 130 | int link_update_rtnl(Link *l, sd_netlink_message *m) { |
1716f6dc | 131 | const char *n = NULL; |
74b2466e LP |
132 | int r; |
133 | ||
134 | assert(l); | |
135 | assert(m); | |
136 | ||
137 | r = sd_rtnl_message_link_get_flags(m, &l->flags); | |
138 | if (r < 0) | |
139 | return r; | |
140 | ||
1c4baffc | 141 | sd_netlink_message_read_u32(m, IFLA_MTU, &l->mtu); |
1716f6dc | 142 | |
1c4baffc | 143 | if (sd_netlink_message_read_string(m, IFLA_IFNAME, &n) >= 0) { |
cc7844e7 | 144 | strncpy(l->name, n, sizeof(l->name)-1); |
1716f6dc LP |
145 | char_array_0(l->name); |
146 | } | |
147 | ||
148 | link_allocate_scopes(l); | |
ec2c5e43 | 149 | link_add_rrs(l, false); |
623a4c97 | 150 | |
74b2466e LP |
151 | return 0; |
152 | } | |
153 | ||
6073b6f2 | 154 | static int link_update_dns_servers(Link *l) { |
6f4dedb2 TG |
155 | _cleanup_strv_free_ char **nameservers = NULL; |
156 | char **nameserver; | |
74b2466e | 157 | DnsServer *s, *nx; |
6f4dedb2 | 158 | int r; |
74b2466e LP |
159 | |
160 | assert(l); | |
161 | ||
d6731e4c | 162 | r = sd_network_link_get_dns(l->ifindex, &nameservers); |
6f4dedb2 | 163 | if (r < 0) |
74b2466e | 164 | goto clear; |
74b2466e | 165 | |
5cb36f41 LP |
166 | LIST_FOREACH(servers, s, l->dns_servers) |
167 | s->marked = true; | |
168 | ||
6f4dedb2 TG |
169 | STRV_FOREACH(nameserver, nameservers) { |
170 | union in_addr_union a; | |
171 | int family; | |
74b2466e | 172 | |
6f4dedb2 TG |
173 | r = in_addr_from_string_auto(*nameserver, &family, &a); |
174 | if (r < 0) | |
175 | goto clear; | |
74b2466e | 176 | |
6f4dedb2 | 177 | s = link_find_dns_server(l, family, &a); |
74b2466e LP |
178 | if (s) |
179 | s->marked = false; | |
180 | else { | |
4e945a6f | 181 | r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, family, &a); |
74b2466e LP |
182 | if (r < 0) |
183 | goto clear; | |
184 | } | |
185 | } | |
186 | ||
6073b6f2 | 187 | LIST_FOREACH_SAFE(servers, s, nx, l->dns_servers) |
91b14d6f TG |
188 | if (s->marked) { |
189 | LIST_REMOVE(servers, l->dns_servers, s); | |
190 | dns_server_unref(s); | |
191 | } | |
74b2466e LP |
192 | |
193 | return 0; | |
194 | ||
195 | clear: | |
91b14d6f TG |
196 | while (l->dns_servers) { |
197 | s = l->dns_servers; | |
198 | ||
199 | LIST_REMOVE(servers, l->dns_servers, s); | |
200 | dns_server_unref(s); | |
201 | } | |
74b2466e LP |
202 | |
203 | return r; | |
204 | } | |
205 | ||
19b50b5b LP |
206 | static int link_update_llmnr_support(Link *l) { |
207 | _cleanup_free_ char *b = NULL; | |
208 | int r; | |
209 | ||
210 | assert(l); | |
211 | ||
d6731e4c | 212 | r = sd_network_link_get_llmnr(l->ifindex, &b); |
19b50b5b LP |
213 | if (r < 0) |
214 | goto clear; | |
215 | ||
216 | r = parse_boolean(b); | |
217 | if (r < 0) { | |
218 | if (streq(b, "resolve")) | |
219 | l->llmnr_support = SUPPORT_RESOLVE; | |
220 | else | |
221 | goto clear; | |
222 | ||
223 | } else if (r > 0) | |
224 | l->llmnr_support = SUPPORT_YES; | |
225 | else | |
226 | l->llmnr_support = SUPPORT_NO; | |
227 | ||
228 | return 0; | |
229 | ||
230 | clear: | |
231 | l->llmnr_support = SUPPORT_YES; | |
232 | return r; | |
233 | } | |
234 | ||
bda2c408 TG |
235 | static int link_update_domains(Link *l) { |
236 | int r; | |
237 | ||
238 | if (!l->unicast_scope) | |
239 | return 0; | |
240 | ||
241 | strv_free(l->unicast_scope->domains); | |
242 | l->unicast_scope->domains = NULL; | |
243 | ||
244 | r = sd_network_link_get_domains(l->ifindex, | |
245 | &l->unicast_scope->domains); | |
246 | if (r < 0) | |
247 | return r; | |
248 | ||
249 | return 0; | |
250 | } | |
251 | ||
74b2466e LP |
252 | int link_update_monitor(Link *l) { |
253 | assert(l); | |
254 | ||
6073b6f2 | 255 | link_update_dns_servers(l); |
19b50b5b | 256 | link_update_llmnr_support(l); |
1716f6dc | 257 | link_allocate_scopes(l); |
bda2c408 | 258 | link_update_domains(l); |
ec2c5e43 | 259 | link_add_rrs(l, false); |
74b2466e LP |
260 | |
261 | return 0; | |
262 | } | |
263 | ||
0dd25fb9 | 264 | bool link_relevant(Link *l, int family) { |
1716f6dc | 265 | _cleanup_free_ char *state = NULL; |
74b2466e LP |
266 | LinkAddress *a; |
267 | ||
268 | assert(l); | |
269 | ||
ec2c5e43 LP |
270 | /* A link is relevant if it isn't a loopback or pointopoint |
271 | * device, has a link beat, can do multicast and has at least | |
272 | * one relevant IP address */ | |
273 | ||
274 | if (l->flags & (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_DORMANT)) | |
275 | return false; | |
74b2466e | 276 | |
ec2c5e43 | 277 | if ((l->flags & (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) != (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) |
74b2466e LP |
278 | return false; |
279 | ||
d6731e4c | 280 | sd_network_link_get_operational_state(l->ifindex, &state); |
1716f6dc | 281 | if (state && !STR_IN_SET(state, "unknown", "degraded", "routable")) |
74b2466e LP |
282 | return false; |
283 | ||
284 | LIST_FOREACH(addresses, a, l->addresses) | |
1716f6dc | 285 | if (a->family == family && link_address_relevant(a)) |
74b2466e LP |
286 | return true; |
287 | ||
288 | return false; | |
289 | } | |
290 | ||
623a4c97 | 291 | LinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) { |
74b2466e LP |
292 | LinkAddress *a; |
293 | ||
294 | assert(l); | |
295 | ||
1716f6dc LP |
296 | LIST_FOREACH(addresses, a, l->addresses) |
297 | if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr)) | |
74b2466e | 298 | return a; |
74b2466e LP |
299 | |
300 | return NULL; | |
301 | } | |
302 | ||
623a4c97 | 303 | DnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr) { |
6073b6f2 | 304 | DnsServer *s; |
74b2466e LP |
305 | |
306 | assert(l); | |
307 | ||
6073b6f2 | 308 | LIST_FOREACH(servers, s, l->dns_servers) |
1716f6dc | 309 | if (s->family == family && in_addr_equal(family, &s->address, in_addr)) |
74b2466e | 310 | return s; |
74b2466e LP |
311 | return NULL; |
312 | } | |
313 | ||
2c27fbca | 314 | DnsServer* link_set_dns_server(Link *l, DnsServer *s) { |
4e945a6f LP |
315 | assert(l); |
316 | ||
317 | if (l->current_dns_server == s) | |
318 | return s; | |
319 | ||
320 | if (s) { | |
321 | _cleanup_free_ char *ip = NULL; | |
322 | ||
323 | in_addr_to_string(s->family, &s->address, &ip); | |
324 | log_info("Switching to DNS server %s for interface %s.", strna(ip), l->name); | |
2c27fbca | 325 | } |
4e945a6f LP |
326 | |
327 | l->current_dns_server = s; | |
2c27fbca LP |
328 | |
329 | if (l->unicast_scope) | |
330 | dns_cache_flush(&l->unicast_scope->cache); | |
331 | ||
4e945a6f LP |
332 | return s; |
333 | } | |
334 | ||
74b2466e LP |
335 | DnsServer *link_get_dns_server(Link *l) { |
336 | assert(l); | |
337 | ||
338 | if (!l->current_dns_server) | |
4e945a6f | 339 | link_set_dns_server(l, l->dns_servers); |
74b2466e LP |
340 | |
341 | return l->current_dns_server; | |
342 | } | |
343 | ||
344 | void link_next_dns_server(Link *l) { | |
345 | assert(l); | |
346 | ||
74b2466e LP |
347 | if (!l->current_dns_server) |
348 | return; | |
349 | ||
350 | if (l->current_dns_server->servers_next) { | |
4e945a6f | 351 | link_set_dns_server(l, l->current_dns_server->servers_next); |
74b2466e LP |
352 | return; |
353 | } | |
354 | ||
4e945a6f | 355 | link_set_dns_server(l, l->dns_servers); |
74b2466e LP |
356 | } |
357 | ||
623a4c97 | 358 | int link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) { |
74b2466e LP |
359 | LinkAddress *a; |
360 | ||
361 | assert(l); | |
362 | assert(in_addr); | |
363 | ||
364 | a = new0(LinkAddress, 1); | |
365 | if (!a) | |
366 | return -ENOMEM; | |
367 | ||
368 | a->family = family; | |
369 | a->in_addr = *in_addr; | |
370 | ||
371 | a->link = l; | |
372 | LIST_PREPEND(addresses, l->addresses, a); | |
373 | ||
374 | if (ret) | |
375 | *ret = a; | |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
380 | LinkAddress *link_address_free(LinkAddress *a) { | |
381 | if (!a) | |
382 | return NULL; | |
383 | ||
623a4c97 | 384 | if (a->link) { |
74b2466e LP |
385 | LIST_REMOVE(addresses, a->link->addresses, a); |
386 | ||
623a4c97 | 387 | if (a->llmnr_address_rr) { |
623a4c97 LP |
388 | if (a->family == AF_INET && a->link->llmnr_ipv4_scope) |
389 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr); | |
390 | else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope) | |
391 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr); | |
623a4c97 LP |
392 | } |
393 | ||
394 | if (a->llmnr_ptr_rr) { | |
395 | if (a->family == AF_INET && a->link->llmnr_ipv4_scope) | |
396 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr); | |
397 | else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope) | |
398 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr); | |
623a4c97 LP |
399 | } |
400 | } | |
401 | ||
ec2c5e43 LP |
402 | dns_resource_record_unref(a->llmnr_address_rr); |
403 | dns_resource_record_unref(a->llmnr_ptr_rr); | |
404 | ||
74b2466e LP |
405 | free(a); |
406 | return NULL; | |
407 | } | |
408 | ||
ec2c5e43 | 409 | void link_address_add_rrs(LinkAddress *a, bool force_remove) { |
623a4c97 LP |
410 | int r; |
411 | ||
412 | assert(a); | |
413 | ||
ec2c5e43 | 414 | if (a->family == AF_INET) { |
623a4c97 | 415 | |
4e945a6f LP |
416 | if (!force_remove && |
417 | link_address_relevant(a) && | |
418 | a->link->llmnr_ipv4_scope && | |
19b50b5b | 419 | a->link->llmnr_support == SUPPORT_YES && |
4e945a6f LP |
420 | a->link->manager->llmnr_support == SUPPORT_YES) { |
421 | ||
78c6a153 LP |
422 | if (!a->link->manager->llmnr_host_ipv4_key) { |
423 | a->link->manager->llmnr_host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->llmnr_hostname); | |
424 | if (!a->link->manager->llmnr_host_ipv4_key) { | |
ec2c5e43 LP |
425 | r = -ENOMEM; |
426 | goto fail; | |
427 | } | |
623a4c97 | 428 | } |
623a4c97 | 429 | |
623a4c97 | 430 | if (!a->llmnr_address_rr) { |
78c6a153 | 431 | a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv4_key); |
ec2c5e43 LP |
432 | if (!a->llmnr_address_rr) { |
433 | r = -ENOMEM; | |
434 | goto fail; | |
435 | } | |
436 | ||
437 | a->llmnr_address_rr->a.in_addr = a->in_addr.in; | |
438 | a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL; | |
623a4c97 LP |
439 | } |
440 | ||
ec2c5e43 | 441 | if (!a->llmnr_ptr_rr) { |
78c6a153 | 442 | r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname); |
ec2c5e43 LP |
443 | if (r < 0) |
444 | goto fail; | |
623a4c97 | 445 | |
ec2c5e43 LP |
446 | a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL; |
447 | } | |
623a4c97 | 448 | |
ec2c5e43 | 449 | r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_address_rr, true); |
623a4c97 | 450 | if (r < 0) |
da927ba9 | 451 | log_warning_errno(r, "Failed to add A record to LLMNR zone: %m"); |
623a4c97 | 452 | |
ec2c5e43 | 453 | r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_ptr_rr, false); |
623a4c97 | 454 | if (r < 0) |
da927ba9 | 455 | log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m"); |
623a4c97 | 456 | } else { |
ec2c5e43 LP |
457 | if (a->llmnr_address_rr) { |
458 | if (a->link->llmnr_ipv4_scope) | |
459 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr); | |
460 | a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr); | |
461 | } | |
462 | ||
463 | if (a->llmnr_ptr_rr) { | |
464 | if (a->link->llmnr_ipv4_scope) | |
465 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr); | |
466 | a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); | |
467 | } | |
623a4c97 LP |
468 | } |
469 | } | |
470 | ||
ec2c5e43 | 471 | if (a->family == AF_INET6) { |
623a4c97 | 472 | |
4e945a6f LP |
473 | if (!force_remove && |
474 | link_address_relevant(a) && | |
475 | a->link->llmnr_ipv6_scope && | |
19b50b5b | 476 | a->link->llmnr_support == SUPPORT_YES && |
4e945a6f LP |
477 | a->link->manager->llmnr_support == SUPPORT_YES) { |
478 | ||
78c6a153 LP |
479 | if (!a->link->manager->llmnr_host_ipv6_key) { |
480 | a->link->manager->llmnr_host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->llmnr_hostname); | |
481 | if (!a->link->manager->llmnr_host_ipv6_key) { | |
ec2c5e43 LP |
482 | r = -ENOMEM; |
483 | goto fail; | |
484 | } | |
623a4c97 | 485 | } |
623a4c97 | 486 | |
623a4c97 | 487 | if (!a->llmnr_address_rr) { |
78c6a153 | 488 | a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv6_key); |
ec2c5e43 LP |
489 | if (!a->llmnr_address_rr) { |
490 | r = -ENOMEM; | |
491 | goto fail; | |
492 | } | |
493 | ||
494 | a->llmnr_address_rr->aaaa.in6_addr = a->in_addr.in6; | |
495 | a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL; | |
623a4c97 LP |
496 | } |
497 | ||
ec2c5e43 | 498 | if (!a->llmnr_ptr_rr) { |
78c6a153 | 499 | r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname); |
ec2c5e43 LP |
500 | if (r < 0) |
501 | goto fail; | |
623a4c97 | 502 | |
ec2c5e43 LP |
503 | a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL; |
504 | } | |
623a4c97 | 505 | |
ec2c5e43 | 506 | r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_address_rr, true); |
623a4c97 | 507 | if (r < 0) |
da927ba9 | 508 | log_warning_errno(r, "Failed to add AAAA record to LLMNR zone: %m"); |
623a4c97 | 509 | |
ec2c5e43 | 510 | r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_ptr_rr, false); |
623a4c97 | 511 | if (r < 0) |
da927ba9 | 512 | log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m"); |
623a4c97 | 513 | } else { |
ec2c5e43 LP |
514 | if (a->llmnr_address_rr) { |
515 | if (a->link->llmnr_ipv6_scope) | |
516 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr); | |
517 | a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr); | |
518 | } | |
519 | ||
520 | if (a->llmnr_ptr_rr) { | |
521 | if (a->link->llmnr_ipv6_scope) | |
522 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr); | |
523 | a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); | |
524 | } | |
623a4c97 LP |
525 | } |
526 | } | |
527 | ||
528 | return; | |
529 | ||
530 | fail: | |
da927ba9 | 531 | log_debug_errno(r, "Failed to update address RRs: %m"); |
623a4c97 LP |
532 | } |
533 | ||
1c4baffc | 534 | int link_address_update_rtnl(LinkAddress *a, sd_netlink_message *m) { |
74b2466e LP |
535 | int r; |
536 | assert(a); | |
537 | assert(m); | |
538 | ||
539 | r = sd_rtnl_message_addr_get_flags(m, &a->flags); | |
540 | if (r < 0) | |
541 | return r; | |
542 | ||
1716f6dc | 543 | sd_rtnl_message_addr_get_scope(m, &a->scope); |
74b2466e | 544 | |
1716f6dc | 545 | link_allocate_scopes(a->link); |
ec2c5e43 | 546 | link_add_rrs(a->link, false); |
623a4c97 | 547 | |
74b2466e LP |
548 | return 0; |
549 | } | |
550 | ||
551 | bool link_address_relevant(LinkAddress *a) { | |
552 | assert(a); | |
553 | ||
7b85d72f | 554 | if (a->flags & (IFA_F_DEPRECATED|IFA_F_TENTATIVE)) |
74b2466e LP |
555 | return false; |
556 | ||
557 | if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE)) | |
558 | return false; | |
559 | ||
560 | return true; | |
561 | } |