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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" |
6bedfcbb | 27 | #include "parse-util.h" |
74b2466e | 28 | #include "resolved-link.h" |
07630cea LP |
29 | #include "string-util.h" |
30 | #include "strv.h" | |
74b2466e LP |
31 | |
32 | int link_new(Manager *m, Link **ret, int ifindex) { | |
33 | _cleanup_(link_freep) Link *l = NULL; | |
34 | int r; | |
35 | ||
36 | assert(m); | |
37 | assert(ifindex > 0); | |
38 | ||
d5099efc | 39 | r = hashmap_ensure_allocated(&m->links, NULL); |
74b2466e LP |
40 | if (r < 0) |
41 | return r; | |
42 | ||
43 | l = new0(Link, 1); | |
44 | if (!l) | |
45 | return -ENOMEM; | |
46 | ||
47 | l->ifindex = ifindex; | |
19b50b5b | 48 | l->llmnr_support = SUPPORT_YES; |
74b2466e LP |
49 | |
50 | r = hashmap_put(m->links, INT_TO_PTR(ifindex), l); | |
51 | if (r < 0) | |
52 | return r; | |
53 | ||
54 | l->manager = m; | |
55 | ||
56 | if (ret) | |
57 | *ret = l; | |
58 | l = NULL; | |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
63 | Link *link_free(Link *l) { | |
74b2466e LP |
64 | if (!l) |
65 | return NULL; | |
66 | ||
67 | while (l->addresses) | |
68 | link_address_free(l->addresses); | |
69 | ||
70 | if (l->manager) | |
71 | hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex)); | |
72 | ||
91b14d6f TG |
73 | while (l->dns_servers) { |
74 | DnsServer *s = l->dns_servers; | |
75 | ||
76 | LIST_REMOVE(servers, l->dns_servers, s); | |
77 | dns_server_unref(s); | |
78 | } | |
cab5b059 | 79 | |
74b2466e | 80 | dns_scope_free(l->unicast_scope); |
1716f6dc LP |
81 | dns_scope_free(l->llmnr_ipv4_scope); |
82 | dns_scope_free(l->llmnr_ipv6_scope); | |
74b2466e | 83 | |
74b2466e LP |
84 | free(l); |
85 | return NULL; | |
1716f6dc LP |
86 | } |
87 | ||
88 | static void link_allocate_scopes(Link *l) { | |
89 | int r; | |
90 | ||
91 | assert(l); | |
92 | ||
6073b6f2 | 93 | if (l->dns_servers) { |
1716f6dc LP |
94 | if (!l->unicast_scope) { |
95 | r = dns_scope_new(l->manager, &l->unicast_scope, l, DNS_PROTOCOL_DNS, AF_UNSPEC); | |
96 | if (r < 0) | |
da927ba9 | 97 | log_warning_errno(r, "Failed to allocate DNS scope: %m"); |
1716f6dc LP |
98 | } |
99 | } else | |
100 | l->unicast_scope = dns_scope_free(l->unicast_scope); | |
101 | ||
90ab5042 LP |
102 | if (link_relevant(l, AF_INET) && |
103 | l->llmnr_support != SUPPORT_NO && | |
db97a66a | 104 | l->manager->llmnr_support != SUPPORT_NO) { |
1716f6dc LP |
105 | if (!l->llmnr_ipv4_scope) { |
106 | r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET); | |
107 | if (r < 0) | |
da927ba9 | 108 | log_warning_errno(r, "Failed to allocate LLMNR IPv4 scope: %m"); |
1716f6dc LP |
109 | } |
110 | } else | |
111 | l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope); | |
112 | ||
90ab5042 LP |
113 | if (link_relevant(l, AF_INET6) && |
114 | l->llmnr_support != SUPPORT_NO && | |
115 | l->manager->llmnr_support != SUPPORT_NO && | |
db97a66a | 116 | socket_ipv6_is_supported()) { |
1716f6dc LP |
117 | if (!l->llmnr_ipv6_scope) { |
118 | r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6); | |
119 | if (r < 0) | |
da927ba9 | 120 | log_warning_errno(r, "Failed to allocate LLMNR IPv6 scope: %m"); |
1716f6dc LP |
121 | } |
122 | } else | |
123 | l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope); | |
124 | } | |
74b2466e | 125 | |
ec2c5e43 | 126 | void link_add_rrs(Link *l, bool force_remove) { |
623a4c97 LP |
127 | LinkAddress *a; |
128 | ||
129 | LIST_FOREACH(addresses, a, l->addresses) | |
ec2c5e43 | 130 | link_address_add_rrs(a, force_remove); |
623a4c97 LP |
131 | } |
132 | ||
1c4baffc | 133 | int link_update_rtnl(Link *l, sd_netlink_message *m) { |
1716f6dc | 134 | const char *n = NULL; |
74b2466e LP |
135 | int r; |
136 | ||
137 | assert(l); | |
138 | assert(m); | |
139 | ||
140 | r = sd_rtnl_message_link_get_flags(m, &l->flags); | |
141 | if (r < 0) | |
142 | return r; | |
143 | ||
1c4baffc | 144 | sd_netlink_message_read_u32(m, IFLA_MTU, &l->mtu); |
1716f6dc | 145 | |
1c4baffc | 146 | if (sd_netlink_message_read_string(m, IFLA_IFNAME, &n) >= 0) { |
cc7844e7 | 147 | strncpy(l->name, n, sizeof(l->name)-1); |
1716f6dc LP |
148 | char_array_0(l->name); |
149 | } | |
150 | ||
151 | link_allocate_scopes(l); | |
ec2c5e43 | 152 | link_add_rrs(l, false); |
623a4c97 | 153 | |
74b2466e LP |
154 | return 0; |
155 | } | |
156 | ||
6073b6f2 | 157 | static int link_update_dns_servers(Link *l) { |
6f4dedb2 TG |
158 | _cleanup_strv_free_ char **nameservers = NULL; |
159 | char **nameserver; | |
74b2466e | 160 | DnsServer *s, *nx; |
6f4dedb2 | 161 | int r; |
74b2466e LP |
162 | |
163 | assert(l); | |
164 | ||
d6731e4c | 165 | r = sd_network_link_get_dns(l->ifindex, &nameservers); |
6f4dedb2 | 166 | if (r < 0) |
74b2466e | 167 | goto clear; |
74b2466e | 168 | |
5cb36f41 LP |
169 | LIST_FOREACH(servers, s, l->dns_servers) |
170 | s->marked = true; | |
171 | ||
6f4dedb2 TG |
172 | STRV_FOREACH(nameserver, nameservers) { |
173 | union in_addr_union a; | |
174 | int family; | |
74b2466e | 175 | |
6f4dedb2 TG |
176 | r = in_addr_from_string_auto(*nameserver, &family, &a); |
177 | if (r < 0) | |
178 | goto clear; | |
74b2466e | 179 | |
6f4dedb2 | 180 | s = link_find_dns_server(l, family, &a); |
74b2466e LP |
181 | if (s) |
182 | s->marked = false; | |
183 | else { | |
4e945a6f | 184 | r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, family, &a); |
74b2466e LP |
185 | if (r < 0) |
186 | goto clear; | |
187 | } | |
188 | } | |
189 | ||
6073b6f2 | 190 | LIST_FOREACH_SAFE(servers, s, nx, l->dns_servers) |
91b14d6f TG |
191 | if (s->marked) { |
192 | LIST_REMOVE(servers, l->dns_servers, s); | |
193 | dns_server_unref(s); | |
194 | } | |
74b2466e LP |
195 | |
196 | return 0; | |
197 | ||
198 | clear: | |
91b14d6f TG |
199 | while (l->dns_servers) { |
200 | s = l->dns_servers; | |
201 | ||
202 | LIST_REMOVE(servers, l->dns_servers, s); | |
203 | dns_server_unref(s); | |
204 | } | |
74b2466e LP |
205 | |
206 | return r; | |
207 | } | |
208 | ||
19b50b5b LP |
209 | static int link_update_llmnr_support(Link *l) { |
210 | _cleanup_free_ char *b = NULL; | |
211 | int r; | |
212 | ||
213 | assert(l); | |
214 | ||
d6731e4c | 215 | r = sd_network_link_get_llmnr(l->ifindex, &b); |
19b50b5b LP |
216 | if (r < 0) |
217 | goto clear; | |
218 | ||
219 | r = parse_boolean(b); | |
220 | if (r < 0) { | |
221 | if (streq(b, "resolve")) | |
222 | l->llmnr_support = SUPPORT_RESOLVE; | |
223 | else | |
224 | goto clear; | |
225 | ||
226 | } else if (r > 0) | |
227 | l->llmnr_support = SUPPORT_YES; | |
228 | else | |
229 | l->llmnr_support = SUPPORT_NO; | |
230 | ||
231 | return 0; | |
232 | ||
233 | clear: | |
234 | l->llmnr_support = SUPPORT_YES; | |
235 | return r; | |
236 | } | |
237 | ||
bda2c408 TG |
238 | static int link_update_domains(Link *l) { |
239 | int r; | |
240 | ||
241 | if (!l->unicast_scope) | |
242 | return 0; | |
243 | ||
6796073e | 244 | l->unicast_scope->domains = strv_free(l->unicast_scope->domains); |
bda2c408 TG |
245 | |
246 | r = sd_network_link_get_domains(l->ifindex, | |
247 | &l->unicast_scope->domains); | |
248 | if (r < 0) | |
249 | return r; | |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
74b2466e LP |
254 | int link_update_monitor(Link *l) { |
255 | assert(l); | |
256 | ||
6073b6f2 | 257 | link_update_dns_servers(l); |
19b50b5b | 258 | link_update_llmnr_support(l); |
1716f6dc | 259 | link_allocate_scopes(l); |
bda2c408 | 260 | link_update_domains(l); |
ec2c5e43 | 261 | link_add_rrs(l, false); |
74b2466e LP |
262 | |
263 | return 0; | |
264 | } | |
265 | ||
0dd25fb9 | 266 | bool link_relevant(Link *l, int family) { |
1716f6dc | 267 | _cleanup_free_ char *state = NULL; |
74b2466e LP |
268 | LinkAddress *a; |
269 | ||
270 | assert(l); | |
271 | ||
ec2c5e43 LP |
272 | /* A link is relevant if it isn't a loopback or pointopoint |
273 | * device, has a link beat, can do multicast and has at least | |
274 | * one relevant IP address */ | |
275 | ||
276 | if (l->flags & (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_DORMANT)) | |
277 | return false; | |
74b2466e | 278 | |
ec2c5e43 | 279 | if ((l->flags & (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) != (IFF_UP|IFF_LOWER_UP|IFF_MULTICAST)) |
74b2466e LP |
280 | return false; |
281 | ||
d6731e4c | 282 | sd_network_link_get_operational_state(l->ifindex, &state); |
1716f6dc | 283 | if (state && !STR_IN_SET(state, "unknown", "degraded", "routable")) |
74b2466e LP |
284 | return false; |
285 | ||
286 | LIST_FOREACH(addresses, a, l->addresses) | |
1716f6dc | 287 | if (a->family == family && link_address_relevant(a)) |
74b2466e LP |
288 | return true; |
289 | ||
290 | return false; | |
291 | } | |
292 | ||
623a4c97 | 293 | LinkAddress *link_find_address(Link *l, int family, const union in_addr_union *in_addr) { |
74b2466e LP |
294 | LinkAddress *a; |
295 | ||
296 | assert(l); | |
297 | ||
1716f6dc LP |
298 | LIST_FOREACH(addresses, a, l->addresses) |
299 | if (a->family == family && in_addr_equal(family, &a->in_addr, in_addr)) | |
74b2466e | 300 | return a; |
74b2466e LP |
301 | |
302 | return NULL; | |
303 | } | |
304 | ||
623a4c97 | 305 | DnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr) { |
6073b6f2 | 306 | DnsServer *s; |
74b2466e LP |
307 | |
308 | assert(l); | |
309 | ||
6073b6f2 | 310 | LIST_FOREACH(servers, s, l->dns_servers) |
1716f6dc | 311 | if (s->family == family && in_addr_equal(family, &s->address, in_addr)) |
74b2466e | 312 | return s; |
74b2466e LP |
313 | return NULL; |
314 | } | |
315 | ||
2c27fbca | 316 | DnsServer* link_set_dns_server(Link *l, DnsServer *s) { |
4e945a6f LP |
317 | assert(l); |
318 | ||
319 | if (l->current_dns_server == s) | |
320 | return s; | |
321 | ||
322 | if (s) { | |
323 | _cleanup_free_ char *ip = NULL; | |
324 | ||
325 | in_addr_to_string(s->family, &s->address, &ip); | |
326 | log_info("Switching to DNS server %s for interface %s.", strna(ip), l->name); | |
2c27fbca | 327 | } |
4e945a6f LP |
328 | |
329 | l->current_dns_server = s; | |
2c27fbca LP |
330 | |
331 | if (l->unicast_scope) | |
332 | dns_cache_flush(&l->unicast_scope->cache); | |
333 | ||
4e945a6f LP |
334 | return s; |
335 | } | |
336 | ||
74b2466e LP |
337 | DnsServer *link_get_dns_server(Link *l) { |
338 | assert(l); | |
339 | ||
340 | if (!l->current_dns_server) | |
4e945a6f | 341 | link_set_dns_server(l, l->dns_servers); |
74b2466e LP |
342 | |
343 | return l->current_dns_server; | |
344 | } | |
345 | ||
346 | void link_next_dns_server(Link *l) { | |
347 | assert(l); | |
348 | ||
74b2466e LP |
349 | if (!l->current_dns_server) |
350 | return; | |
351 | ||
352 | if (l->current_dns_server->servers_next) { | |
4e945a6f | 353 | link_set_dns_server(l, l->current_dns_server->servers_next); |
74b2466e LP |
354 | return; |
355 | } | |
356 | ||
4e945a6f | 357 | link_set_dns_server(l, l->dns_servers); |
74b2466e LP |
358 | } |
359 | ||
623a4c97 | 360 | int link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr) { |
74b2466e LP |
361 | LinkAddress *a; |
362 | ||
363 | assert(l); | |
364 | assert(in_addr); | |
365 | ||
366 | a = new0(LinkAddress, 1); | |
367 | if (!a) | |
368 | return -ENOMEM; | |
369 | ||
370 | a->family = family; | |
371 | a->in_addr = *in_addr; | |
372 | ||
373 | a->link = l; | |
374 | LIST_PREPEND(addresses, l->addresses, a); | |
375 | ||
376 | if (ret) | |
377 | *ret = a; | |
378 | ||
379 | return 0; | |
380 | } | |
381 | ||
382 | LinkAddress *link_address_free(LinkAddress *a) { | |
383 | if (!a) | |
384 | return NULL; | |
385 | ||
623a4c97 | 386 | if (a->link) { |
74b2466e LP |
387 | LIST_REMOVE(addresses, a->link->addresses, a); |
388 | ||
623a4c97 | 389 | if (a->llmnr_address_rr) { |
623a4c97 LP |
390 | if (a->family == AF_INET && a->link->llmnr_ipv4_scope) |
391 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr); | |
392 | else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope) | |
393 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr); | |
623a4c97 LP |
394 | } |
395 | ||
396 | if (a->llmnr_ptr_rr) { | |
397 | if (a->family == AF_INET && a->link->llmnr_ipv4_scope) | |
398 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr); | |
399 | else if (a->family == AF_INET6 && a->link->llmnr_ipv6_scope) | |
400 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr); | |
623a4c97 LP |
401 | } |
402 | } | |
403 | ||
ec2c5e43 LP |
404 | dns_resource_record_unref(a->llmnr_address_rr); |
405 | dns_resource_record_unref(a->llmnr_ptr_rr); | |
406 | ||
74b2466e LP |
407 | free(a); |
408 | return NULL; | |
409 | } | |
410 | ||
ec2c5e43 | 411 | void link_address_add_rrs(LinkAddress *a, bool force_remove) { |
623a4c97 LP |
412 | int r; |
413 | ||
414 | assert(a); | |
415 | ||
ec2c5e43 | 416 | if (a->family == AF_INET) { |
623a4c97 | 417 | |
4e945a6f LP |
418 | if (!force_remove && |
419 | link_address_relevant(a) && | |
420 | a->link->llmnr_ipv4_scope && | |
19b50b5b | 421 | a->link->llmnr_support == SUPPORT_YES && |
4e945a6f LP |
422 | a->link->manager->llmnr_support == SUPPORT_YES) { |
423 | ||
78c6a153 LP |
424 | if (!a->link->manager->llmnr_host_ipv4_key) { |
425 | a->link->manager->llmnr_host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->llmnr_hostname); | |
426 | if (!a->link->manager->llmnr_host_ipv4_key) { | |
ec2c5e43 LP |
427 | r = -ENOMEM; |
428 | goto fail; | |
429 | } | |
623a4c97 | 430 | } |
623a4c97 | 431 | |
623a4c97 | 432 | if (!a->llmnr_address_rr) { |
78c6a153 | 433 | a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv4_key); |
ec2c5e43 LP |
434 | if (!a->llmnr_address_rr) { |
435 | r = -ENOMEM; | |
436 | goto fail; | |
437 | } | |
438 | ||
439 | a->llmnr_address_rr->a.in_addr = a->in_addr.in; | |
440 | a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL; | |
623a4c97 LP |
441 | } |
442 | ||
ec2c5e43 | 443 | if (!a->llmnr_ptr_rr) { |
78c6a153 | 444 | r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname); |
ec2c5e43 LP |
445 | if (r < 0) |
446 | goto fail; | |
623a4c97 | 447 | |
ec2c5e43 LP |
448 | a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL; |
449 | } | |
623a4c97 | 450 | |
ec2c5e43 | 451 | r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_address_rr, true); |
623a4c97 | 452 | if (r < 0) |
da927ba9 | 453 | log_warning_errno(r, "Failed to add A record to LLMNR zone: %m"); |
623a4c97 | 454 | |
ec2c5e43 | 455 | r = dns_zone_put(&a->link->llmnr_ipv4_scope->zone, a->link->llmnr_ipv4_scope, a->llmnr_ptr_rr, false); |
623a4c97 | 456 | if (r < 0) |
da927ba9 | 457 | log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m"); |
623a4c97 | 458 | } else { |
ec2c5e43 LP |
459 | if (a->llmnr_address_rr) { |
460 | if (a->link->llmnr_ipv4_scope) | |
461 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_address_rr); | |
462 | a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr); | |
463 | } | |
464 | ||
465 | if (a->llmnr_ptr_rr) { | |
466 | if (a->link->llmnr_ipv4_scope) | |
467 | dns_zone_remove_rr(&a->link->llmnr_ipv4_scope->zone, a->llmnr_ptr_rr); | |
468 | a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); | |
469 | } | |
623a4c97 LP |
470 | } |
471 | } | |
472 | ||
ec2c5e43 | 473 | if (a->family == AF_INET6) { |
623a4c97 | 474 | |
4e945a6f LP |
475 | if (!force_remove && |
476 | link_address_relevant(a) && | |
477 | a->link->llmnr_ipv6_scope && | |
19b50b5b | 478 | a->link->llmnr_support == SUPPORT_YES && |
4e945a6f LP |
479 | a->link->manager->llmnr_support == SUPPORT_YES) { |
480 | ||
78c6a153 LP |
481 | if (!a->link->manager->llmnr_host_ipv6_key) { |
482 | a->link->manager->llmnr_host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->llmnr_hostname); | |
483 | if (!a->link->manager->llmnr_host_ipv6_key) { | |
ec2c5e43 LP |
484 | r = -ENOMEM; |
485 | goto fail; | |
486 | } | |
623a4c97 | 487 | } |
623a4c97 | 488 | |
623a4c97 | 489 | if (!a->llmnr_address_rr) { |
78c6a153 | 490 | a->llmnr_address_rr = dns_resource_record_new(a->link->manager->llmnr_host_ipv6_key); |
ec2c5e43 LP |
491 | if (!a->llmnr_address_rr) { |
492 | r = -ENOMEM; | |
493 | goto fail; | |
494 | } | |
495 | ||
496 | a->llmnr_address_rr->aaaa.in6_addr = a->in_addr.in6; | |
497 | a->llmnr_address_rr->ttl = LLMNR_DEFAULT_TTL; | |
623a4c97 LP |
498 | } |
499 | ||
ec2c5e43 | 500 | if (!a->llmnr_ptr_rr) { |
78c6a153 | 501 | r = dns_resource_record_new_reverse(&a->llmnr_ptr_rr, a->family, &a->in_addr, a->link->manager->llmnr_hostname); |
ec2c5e43 LP |
502 | if (r < 0) |
503 | goto fail; | |
623a4c97 | 504 | |
ec2c5e43 LP |
505 | a->llmnr_ptr_rr->ttl = LLMNR_DEFAULT_TTL; |
506 | } | |
623a4c97 | 507 | |
ec2c5e43 | 508 | r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_address_rr, true); |
623a4c97 | 509 | if (r < 0) |
da927ba9 | 510 | log_warning_errno(r, "Failed to add AAAA record to LLMNR zone: %m"); |
623a4c97 | 511 | |
ec2c5e43 | 512 | r = dns_zone_put(&a->link->llmnr_ipv6_scope->zone, a->link->llmnr_ipv6_scope, a->llmnr_ptr_rr, false); |
623a4c97 | 513 | if (r < 0) |
da927ba9 | 514 | log_warning_errno(r, "Failed to add IPv6 PTR record to LLMNR zone: %m"); |
623a4c97 | 515 | } else { |
ec2c5e43 LP |
516 | if (a->llmnr_address_rr) { |
517 | if (a->link->llmnr_ipv6_scope) | |
518 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_address_rr); | |
519 | a->llmnr_address_rr = dns_resource_record_unref(a->llmnr_address_rr); | |
520 | } | |
521 | ||
522 | if (a->llmnr_ptr_rr) { | |
523 | if (a->link->llmnr_ipv6_scope) | |
524 | dns_zone_remove_rr(&a->link->llmnr_ipv6_scope->zone, a->llmnr_ptr_rr); | |
525 | a->llmnr_ptr_rr = dns_resource_record_unref(a->llmnr_ptr_rr); | |
526 | } | |
623a4c97 LP |
527 | } |
528 | } | |
529 | ||
530 | return; | |
531 | ||
532 | fail: | |
da927ba9 | 533 | log_debug_errno(r, "Failed to update address RRs: %m"); |
623a4c97 LP |
534 | } |
535 | ||
1c4baffc | 536 | int link_address_update_rtnl(LinkAddress *a, sd_netlink_message *m) { |
74b2466e LP |
537 | int r; |
538 | assert(a); | |
539 | assert(m); | |
540 | ||
541 | r = sd_rtnl_message_addr_get_flags(m, &a->flags); | |
542 | if (r < 0) | |
543 | return r; | |
544 | ||
1716f6dc | 545 | sd_rtnl_message_addr_get_scope(m, &a->scope); |
74b2466e | 546 | |
1716f6dc | 547 | link_allocate_scopes(a->link); |
ec2c5e43 | 548 | link_add_rrs(a->link, false); |
623a4c97 | 549 | |
74b2466e LP |
550 | return 0; |
551 | } | |
552 | ||
553 | bool link_address_relevant(LinkAddress *a) { | |
554 | assert(a); | |
555 | ||
7b85d72f | 556 | if (a->flags & (IFA_F_DEPRECATED|IFA_F_TENTATIVE)) |
74b2466e LP |
557 | return false; |
558 | ||
559 | if (IN_SET(a->scope, RT_SCOPE_HOST, RT_SCOPE_NOWHERE)) | |
560 | return false; | |
561 | ||
562 | return true; | |
563 | } |