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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" | |
07630cea | 25 | |
ec2c5e43 | 26 | #include "missing.h" |
74b2466e | 27 | #include "resolved-link.h" |
07630cea LP |
28 | #include "string-util.h" |
29 | #include "strv.h" | |
74b2466e LP |
30 | |
31 | int link_new(Manager *m, Link **ret, int ifindex) { | |
32 | _cleanup_(link_freep) Link *l = NULL; | |
33 | int r; | |
34 | ||
35 | assert(m); | |
36 | assert(ifindex > 0); | |
37 | ||
d5099efc | 38 | r = hashmap_ensure_allocated(&m->links, NULL); |
74b2466e LP |
39 | if (r < 0) |
40 | return r; | |
41 | ||
42 | l = new0(Link, 1); | |
43 | if (!l) | |
44 | return -ENOMEM; | |
45 | ||
46 | l->ifindex = ifindex; | |
19b50b5b | 47 | l->llmnr_support = SUPPORT_YES; |
74b2466e LP |
48 | |
49 | r = hashmap_put(m->links, INT_TO_PTR(ifindex), l); | |
50 | if (r < 0) | |
51 | return r; | |
52 | ||
53 | l->manager = m; | |
54 | ||
55 | if (ret) | |
56 | *ret = l; | |
57 | l = NULL; | |
58 | ||
59 | return 0; | |
60 | } | |
61 | ||
62 | Link *link_free(Link *l) { | |
74b2466e LP |
63 | if (!l) |
64 | return NULL; | |
65 | ||
66 | while (l->addresses) | |
67 | link_address_free(l->addresses); | |
68 | ||
69 | if (l->manager) | |
70 | hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex)); | |
71 | ||
91b14d6f TG |
72 | while (l->dns_servers) { |
73 | DnsServer *s = l->dns_servers; | |
74 | ||
75 | LIST_REMOVE(servers, l->dns_servers, s); | |
76 | dns_server_unref(s); | |
77 | } | |
cab5b059 | 78 | |
74b2466e | 79 | dns_scope_free(l->unicast_scope); |
1716f6dc LP |
80 | dns_scope_free(l->llmnr_ipv4_scope); |
81 | dns_scope_free(l->llmnr_ipv6_scope); | |
74b2466e | 82 | |
74b2466e LP |
83 | free(l); |
84 | return NULL; | |
1716f6dc LP |
85 | } |
86 | ||
87 | static void link_allocate_scopes(Link *l) { | |
88 | int r; | |
89 | ||
90 | assert(l); | |
91 | ||
6073b6f2 | 92 | if (l->dns_servers) { |
1716f6dc LP |
93 | if (!l->unicast_scope) { |
94 | r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC); | |
95 | if (r < 0) | |
da927ba9 | 96 | log_warning_errno(r, "Failed to allocate DNS scope: %m"); |
1716f6dc LP |
97 | } |
98 | } else | |
99 | l->unicast_scope = dns_scope_free(l->unicast_scope); | |
100 | ||
90ab5042 LP |
101 | if (link_relevant(l, AF_INET) && |
102 | l->llmnr_support != SUPPORT_NO && | |
db97a66a | 103 | l->manager->llmnr_support != SUPPORT_NO) { |
1716f6dc LP |
104 | if (!l->llmnr_ipv4_scope) { |
105 | r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET); | |
106 | if (r < 0) | |
da927ba9 | 107 | log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m"); |
1716f6dc LP |
108 | } |
109 | } else | |
110 | l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope); | |
111 | ||
90ab5042 LP |
112 | if (link_relevant(l, AF_INET6) && |
113 | l->llmnr_support != SUPPORT_NO && | |
114 | l->manager->llmnr_support != SUPPORT_NO && | |
db97a66a | 115 | socket_ipv6_is_supported()) { |
1716f6dc LP |
116 | if (!l->llmnr_ipv6_scope) { |
117 | r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6); | |
118 | if (r < 0) | |
da927ba9 | 119 | log_warning_errno(r, "Failed to allocate LLMNR IPv6 scope: %m"); |
1716f6dc LP |
120 | } |
121 | } else | |
122 | l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope); | |
123 | } | |
74b2466e | 124 | |
ec2c5e43 | 125 | void link_add_rrs(Link *l, bool force_remove) { |
623a4c97 LP |
126 | LinkAddress *a; |
127 | ||
128 | LIST_FOREACH(addresses, a, l->addresses) | |
ec2c5e43 | 129 | link_address_add_rrs(a, force_remove); |
623a4c97 LP |
130 | } |
131 | ||
1c4baffc | 132 | int link_update_rtnl(Link *l, sd_netlink_message *m) { |
1716f6dc | 133 | const char *n = NULL; |
74b2466e LP |
134 | int r; |
135 | ||
136 | assert(l); | |
137 | assert(m); | |
138 | ||
139 | r = sd_rtnl_message_link_get_flags(m, &l->flags); | |
140 | if (r < 0) | |
141 | return r; | |
142 | ||
1c4baffc | 143 | sd_netlink_message_read_u32(m, IFLA_MTU, &l->mtu); |
1716f6dc | 144 | |
1c4baffc | 145 | if (sd_netlink_message_read_string(m, IFLA_IFNAME, &n) >= 0) { |
cc7844e7 | 146 | strncpy(l->name, n, sizeof(l->name)-1); |
1716f6dc LP |
147 | char_array_0(l->name); |
148 | } | |
149 | ||
150 | link_allocate_scopes(l); | |
ec2c5e43 | 151 | link_add_rrs(l, false); |
623a4c97 | 152 | |
74b2466e LP |
153 | return 0; |
154 | } | |
155 | ||
6073b6f2 | 156 | static int link_update_dns_servers(Link *l) { |
6f4dedb2 TG |
157 | _cleanup_strv_free_ char **nameservers = NULL; |
158 | char **nameserver; | |
74b2466e | 159 | DnsServer *s, *nx; |
6f4dedb2 | 160 | int r; |
74b2466e LP |
161 | |
162 | assert(l); | |
163 | ||
d6731e4c | 164 | r = sd_network_link_get_dns(l->ifindex, &nameservers); |
6f4dedb2 | 165 | if (r < 0) |
74b2466e | 166 | goto clear; |
74b2466e | 167 | |
5cb36f41 LP |
168 | LIST_FOREACH(servers, s, l->dns_servers) |
169 | s->marked = true; | |
170 | ||
6f4dedb2 TG |
171 | STRV_FOREACH(nameserver, nameservers) { |
172 | union in_addr_union a; | |
173 | int family; | |
74b2466e | 174 | |
6f4dedb2 TG |
175 | r = in_addr_from_string_auto(*nameserver, &family, &a); |
176 | if (r < 0) | |
177 | goto clear; | |
74b2466e | 178 | |
6f4dedb2 | 179 | s = link_find_dns_server(l, family, &a); |
74b2466e LP |
180 | if (s) |
181 | s->marked = false; | |
182 | else { | |
4e945a6f | 183 | r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, family, &a); |
74b2466e LP |
184 | if (r < 0) |
185 | goto clear; | |
186 | } | |
187 | } | |
188 | ||
6073b6f2 | 189 | LIST_FOREACH_SAFE(servers, s, nx, l->dns_servers) |
91b14d6f TG |
190 | if (s->marked) { |
191 | LIST_REMOVE(servers, l->dns_servers, s); | |
192 | dns_server_unref(s); | |
193 | } | |
74b2466e LP |
194 | |
195 | return 0; | |
196 | ||
197 | clear: | |
91b14d6f TG |
198 | while (l->dns_servers) { |
199 | s = l->dns_servers; | |
200 | ||
201 | LIST_REMOVE(servers, l->dns_servers, s); | |
202 | dns_server_unref(s); | |
203 | } | |
74b2466e LP |
204 | |
205 | return r; | |
206 | } | |
207 | ||
19b50b5b LP |
208 | static int link_update_llmnr_support(Link *l) { |
209 | _cleanup_free_ char *b = NULL; | |
210 | int r; | |
211 | ||
212 | assert(l); | |
213 | ||
d6731e4c | 214 | r = sd_network_link_get_llmnr(l->ifindex, &b); |
19b50b5b LP |
215 | if (r < 0) |
216 | goto clear; | |
217 | ||
218 | r = parse_boolean(b); | |
219 | if (r < 0) { | |
220 | if (streq(b, "resolve")) | |
221 | l->llmnr_support = SUPPORT_RESOLVE; | |
222 | else | |
223 | goto clear; | |
224 | ||
225 | } else if (r > 0) | |
226 | l->llmnr_support = SUPPORT_YES; | |
227 | else | |
228 | l->llmnr_support = SUPPORT_NO; | |
229 | ||
230 | return 0; | |
231 | ||
232 | clear: | |
233 | l->llmnr_support = SUPPORT_YES; | |
234 | return r; | |
235 | } | |
236 | ||
bda2c408 TG |
237 | static int link_update_domains(Link *l) { |
238 | int r; | |
239 | ||
240 | if (!l->unicast_scope) | |
241 | return 0; | |
242 | ||
6796073e | 243 | l->unicast_scope->domains = strv_free(l->unicast_scope->domains); |
bda2c408 TG |
244 | |
245 | r = sd_network_link_get_domains(l->ifindex, | |
246 | &l->unicast_scope->domains); | |
247 | if (r < 0) | |
248 | return r; | |
249 | ||
250 | return 0; | |
251 | } | |
252 | ||
74b2466e LP |
253 | int link_update_monitor(Link *l) { |
254 | assert(l); | |
255 | ||
6073b6f2 | 256 | link_update_dns_servers(l); |
19b50b5b | 257 | link_update_llmnr_support(l); |
1716f6dc | 258 | link_allocate_scopes(l); |
bda2c408 | 259 | link_update_domains(l); |
ec2c5e43 | 260 | link_add_rrs(l, false); |
74b2466e LP |
261 | |
262 | return 0; | |
263 | } | |
264 | ||
0dd25fb9 | 265 | bool link_relevant(Link *l, int family) { |
1716f6dc | 266 | _cleanup_free_ char *state = NULL; |
74b2466e LP |
267 | LinkAddress *a; |
268 | ||
269 | assert(l); | |
270 | ||
ec2c5e43 LP |
271 | /* A link is relevant if it isn't a loopback or pointopoint |
272 | * device, has a link beat, can do multicast and has at least | |
273 | * one relevant IP address */ | |
274 | ||
275 | if (l->flags & (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_DORMANT)) | |
276 | return false; | |
74b2466e | 277 | |
ec2c5e43 | 278 | if ((l->flags & (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) != (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) |
74b2466e LP |
279 | return false; |
280 | ||
d6731e4c | 281 | sd_network_link_get_operational_state(l->ifindex, &state); |
1716f6dc | 282 | if (state && !STR_IN_SET(state, "unknown", "degraded", "routable")) |
74b2466e LP |
283 | return false; |
284 | ||
285 | LIST_FOREACH(addresses, a, l->addresses) | |
1716f6dc | 286 | if (a->family == family && link_address_relevant(a)) |
74b2466e LP |
287 | return true; |
288 | ||
289 | return false; | |
290 | } | |
291 | ||
623a4c97 | 292 | LinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) { |
74b2466e LP |
293 | LinkAddress *a; |
294 | ||
295 | assert(l); | |
296 | ||
1716f6dc LP |
297 | LIST_FOREACH(addresses, a, l->addresses) |
298 | if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr)) | |
74b2466e | 299 | return a; |
74b2466e LP |
300 | |
301 | return NULL; | |
302 | } | |
303 | ||
623a4c97 | 304 | DnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr) { |
6073b6f2 | 305 | DnsServer *s; |
74b2466e LP |
306 | |
307 | assert(l); | |
308 | ||
6073b6f2 | 309 | LIST_FOREACH(servers, s, l->dns_servers) |
1716f6dc | 310 | if (s->family == family && in_addr_equal(family, &s->address, in_addr)) |
74b2466e | 311 | return s; |
74b2466e LP |
312 | return NULL; |
313 | } | |
314 | ||
2c27fbca | 315 | DnsServer* link_set_dns_server(Link *l, DnsServer *s) { |
4e945a6f LP |
316 | assert(l); |
317 | ||
318 | if (l->current_dns_server == s) | |
319 | return s; | |
320 | ||
321 | if (s) { | |
322 | _cleanup_free_ char *ip = NULL; | |
323 | ||
324 | in_addr_to_string(s->family, &s->address, &ip); | |
325 | log_info("Switching to DNS server %s for interface %s.", strna(ip), l->name); | |
2c27fbca | 326 | } |
4e945a6f LP |
327 | |
328 | l->current_dns_server = s; | |
2c27fbca LP |
329 | |
330 | if (l->unicast_scope) | |
331 | dns_cache_flush(&l->unicast_scope->cache); | |
332 | ||
4e945a6f LP |
333 | return s; |
334 | } | |
335 | ||
74b2466e LP |
336 | DnsServer *link_get_dns_server(Link *l) { |
337 | assert(l); | |
338 | ||
339 | if (!l->current_dns_server) | |
4e945a6f | 340 | link_set_dns_server(l, l->dns_servers); |
74b2466e LP |
341 | |
342 | return l->current_dns_server; | |
343 | } | |
344 | ||
345 | void link_next_dns_server(Link *l) { | |
346 | assert(l); | |
347 | ||
74b2466e LP |
348 | if (!l->current_dns_server) |
349 | return; | |
350 | ||
351 | if (l->current_dns_server->servers_next) { | |
4e945a6f | 352 | link_set_dns_server(l, l->current_dns_server->servers_next); |
74b2466e LP |
353 | return; |
354 | } | |
355 | ||
4e945a6f | 356 | link_set_dns_server(l, l->dns_servers); |
74b2466e LP |
357 | } |
358 | ||
623a4c97 | 359 | int link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) { |
74b2466e LP |
360 | LinkAddress *a; |
361 | ||
362 | assert(l); | |
363 | assert(in_addr); | |
364 | ||
365 | a = new0(LinkAddress, 1); | |
366 | if (!a) | |
367 | return -ENOMEM; | |
368 | ||
369 | a->family = family; | |
370 | a->in_addr = *in_addr; | |
371 | ||
372 | a->link = l; | |
373 | LIST_PREPEND(addresses, l->addresses, a); | |
374 | ||
375 | if (ret) | |
376 | *ret = a; | |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
381 | LinkAddress *link_address_free(LinkAddress *a) { | |
382 | if (!a) | |
383 | return NULL; | |
384 | ||
623a4c97 | 385 | if (a->link) { |
74b2466e LP |
386 | LIST_REMOVE(addresses, a->link->addresses, a); |
387 | ||
623a4c97 | 388 | if (a->llmnr_address_rr) { |
623a4c97 LP |
389 | if (a->family == AF_INET && a->link->llmnr_ipv4_scope) |
390 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr); | |
391 | else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope) | |
392 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr); | |
623a4c97 LP |
393 | } |
394 | ||
395 | if (a->llmnr_ptr_rr) { | |
396 | if (a->family == AF_INET && a->link->llmnr_ipv4_scope) | |
397 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr); | |
398 | else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope) | |
399 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr); | |
623a4c97 LP |
400 | } |
401 | } | |
402 | ||
ec2c5e43 LP |
403 | dns_resource_record_unref(a->llmnr_address_rr); |
404 | dns_resource_record_unref(a->llmnr_ptr_rr); | |
405 | ||
74b2466e LP |
406 | free(a); |
407 | return NULL; | |
408 | } | |
409 | ||
ec2c5e43 | 410 | void link_address_add_rrs(LinkAddress *a, bool force_remove) { |
623a4c97 LP |
411 | int r; |
412 | ||
413 | assert(a); | |
414 | ||
ec2c5e43 | 415 | if (a->family == AF_INET) { |
623a4c97 | 416 | |
4e945a6f LP |
417 | if (!force_remove && |
418 | link_address_relevant(a) && | |
419 | a->link->llmnr_ipv4_scope && | |
19b50b5b | 420 | a->link->llmnr_support == SUPPORT_YES && |
4e945a6f LP |
421 | a->link->manager->llmnr_support == SUPPORT_YES) { |
422 | ||
78c6a153 LP |
423 | if (!a->link->manager->llmnr_host_ipv4_key) { |
424 | a->link->manager->llmnr_host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->llmnr_hostname); | |
425 | if (!a->link->manager->llmnr_host_ipv4_key) { | |
ec2c5e43 LP |
426 | r = -ENOMEM; |
427 | goto fail; | |
428 | } | |
623a4c97 | 429 | } |
623a4c97 | 430 | |
623a4c97 | 431 | if (!a->llmnr_address_rr) { |
78c6a153 | 432 | a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv4_key); |
ec2c5e43 LP |
433 | if (!a->llmnr_address_rr) { |
434 | r = -ENOMEM; | |
435 | goto fail; | |
436 | } | |
437 | ||
438 | a->llmnr_address_rr->a.in_addr = a->in_addr.in; | |
439 | a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL; | |
623a4c97 LP |
440 | } |
441 | ||
ec2c5e43 | 442 | if (!a->llmnr_ptr_rr) { |
78c6a153 | 443 | r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname); |
ec2c5e43 LP |
444 | if (r < 0) |
445 | goto fail; | |
623a4c97 | 446 | |
ec2c5e43 LP |
447 | a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL; |
448 | } | |
623a4c97 | 449 | |
ec2c5e43 | 450 | r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_address_rr, true); |
623a4c97 | 451 | if (r < 0) |
da927ba9 | 452 | log_warning_errno(r, "Failed to add A record to LLMNR zone: %m"); |
623a4c97 | 453 | |
ec2c5e43 | 454 | r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_ptr_rr, false); |
623a4c97 | 455 | if (r < 0) |
da927ba9 | 456 | log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m"); |
623a4c97 | 457 | } else { |
ec2c5e43 LP |
458 | if (a->llmnr_address_rr) { |
459 | if (a->link->llmnr_ipv4_scope) | |
460 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr); | |
461 | a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr); | |
462 | } | |
463 | ||
464 | if (a->llmnr_ptr_rr) { | |
465 | if (a->link->llmnr_ipv4_scope) | |
466 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr); | |
467 | a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); | |
468 | } | |
623a4c97 LP |
469 | } |
470 | } | |
471 | ||
ec2c5e43 | 472 | if (a->family == AF_INET6) { |
623a4c97 | 473 | |
4e945a6f LP |
474 | if (!force_remove && |
475 | link_address_relevant(a) && | |
476 | a->link->llmnr_ipv6_scope && | |
19b50b5b | 477 | a->link->llmnr_support == SUPPORT_YES && |
4e945a6f LP |
478 | a->link->manager->llmnr_support == SUPPORT_YES) { |
479 | ||
78c6a153 LP |
480 | if (!a->link->manager->llmnr_host_ipv6_key) { |
481 | a->link->manager->llmnr_host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->llmnr_hostname); | |
482 | if (!a->link->manager->llmnr_host_ipv6_key) { | |
ec2c5e43 LP |
483 | r = -ENOMEM; |
484 | goto fail; | |
485 | } | |
623a4c97 | 486 | } |
623a4c97 | 487 | |
623a4c97 | 488 | if (!a->llmnr_address_rr) { |
78c6a153 | 489 | a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv6_key); |
ec2c5e43 LP |
490 | if (!a->llmnr_address_rr) { |
491 | r = -ENOMEM; | |
492 | goto fail; | |
493 | } | |
494 | ||
495 | a->llmnr_address_rr->aaaa.in6_addr = a->in_addr.in6; | |
496 | a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL; | |
623a4c97 LP |
497 | } |
498 | ||
ec2c5e43 | 499 | if (!a->llmnr_ptr_rr) { |
78c6a153 | 500 | r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname); |
ec2c5e43 LP |
501 | if (r < 0) |
502 | goto fail; | |
623a4c97 | 503 | |
ec2c5e43 LP |
504 | a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL; |
505 | } | |
623a4c97 | 506 | |
ec2c5e43 | 507 | r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_address_rr, true); |
623a4c97 | 508 | if (r < 0) |
da927ba9 | 509 | log_warning_errno(r, "Failed to add AAAA record to LLMNR zone: %m"); |
623a4c97 | 510 | |
ec2c5e43 | 511 | r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_ptr_rr, false); |
623a4c97 | 512 | if (r < 0) |
da927ba9 | 513 | log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m"); |
623a4c97 | 514 | } else { |
ec2c5e43 LP |
515 | if (a->llmnr_address_rr) { |
516 | if (a->link->llmnr_ipv6_scope) | |
517 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr); | |
518 | a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr); | |
519 | } | |
520 | ||
521 | if (a->llmnr_ptr_rr) { | |
522 | if (a->link->llmnr_ipv6_scope) | |
523 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr); | |
524 | a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); | |
525 | } | |
623a4c97 LP |
526 | } |
527 | } | |
528 | ||
529 | return; | |
530 | ||
531 | fail: | |
da927ba9 | 532 | log_debug_errno(r, "Failed to update address RRs: %m"); |
623a4c97 LP |
533 | } |
534 | ||
1c4baffc | 535 | int link_address_update_rtnl(LinkAddress *a, sd_netlink_message *m) { |
74b2466e LP |
536 | int r; |
537 | assert(a); | |
538 | assert(m); | |
539 | ||
540 | r = sd_rtnl_message_addr_get_flags(m, &a->flags); | |
541 | if (r < 0) | |
542 | return r; | |
543 | ||
1716f6dc | 544 | sd_rtnl_message_addr_get_scope(m, &a->scope); |
74b2466e | 545 | |
1716f6dc | 546 | link_allocate_scopes(a->link); |
ec2c5e43 | 547 | link_add_rrs(a->link, false); |
623a4c97 | 548 | |
74b2466e LP |
549 | return 0; |
550 | } | |
551 | ||
552 | bool link_address_relevant(LinkAddress *a) { | |
553 | assert(a); | |
554 | ||
7b85d72f | 555 | if (a->flags & (IFA_F_DEPRECATED|IFA_F_TENTATIVE)) |
74b2466e LP |
556 | return false; |
557 | ||
558 | if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE)) | |
559 | return false; | |
560 | ||
561 | return true; | |
562 | } |