]> git.ipfire.org Git - thirdparty/systemd.git/blame - src/network/networkd-radv.c
projects / thirdparty / systemd.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
network: radv introduce sd_radv_prefix_get_prefix
[thirdparty/systemd.git] / src / network / networkd-radv.c
CommitLineData
53e1b683 1/* SPDX-License-Identifier: LGPL-2.1+ */
091214b6 2/***
810adae9 3 Copyright © 2017 Intel Corporation. All rights reserved.
091214b6
PF		 4***/
5
6#include <netinet/icmp6.h>
7#include <arpa/inet.h>
8
ca5ad760 9#include "dns-domain.h"
091214b6 10#include "networkd-address.h"
c555a358 11#include "networkd-manager.h"
091214b6 12#include "networkd-radv.h"
6e849e95 13#include "parse-util.h"
091214b6 14#include "sd-radv.h"
6e849e95 15#include "string-util.h"
6b1dec66 16#include "string-table.h"
51517f9e 17#include "strv.h"
6e849e95 18
6e849e95
PF		 19void prefix_free(Prefix *prefix) {
20 if (!prefix)
21 return;
22
23 if (prefix->network) {
24 LIST_REMOVE(prefixes, prefix->network->static_prefixes, prefix);
25 assert(prefix->network->n_static_prefixes > 0);
26 prefix->network->n_static_prefixes--;
27
ecee0abe 28 if (prefix->section)
6e849e95
PF		 29 hashmap_remove(prefix->network->prefixes_by_section,
30 prefix->section);
31 }
32
ecee0abe 33 network_config_section_free(prefix->section);
471e126b 34 sd_radv_prefix_unref(prefix->radv_prefix);
6e849e95
PF		 35
36 free(prefix);
37}
38
95081e08 39static int prefix_new(Prefix **ret) {
15b8332e 40 _cleanup_(prefix_freep) Prefix *prefix = NULL;
6e849e95
PF		 41
42 prefix = new0(Prefix, 1);
43 if (!prefix)
44 return -ENOMEM;
45
46 if (sd_radv_prefix_new(&prefix->radv_prefix) < 0)
47 return -ENOMEM;
48
ae2a15bc 49 *ret = TAKE_PTR(prefix);
6e849e95
PF		 50
51 return 0;
52}
53
9560e5b3
YW		 54static int prefix_new_static(Network *network, const char *filename,
55 unsigned section_line, Prefix **ret) {
8e766630
LP		 56 _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL;
57 _cleanup_(prefix_freep) Prefix *prefix = NULL;
6e849e95
PF		 58 int r;
59
60 assert(network);
61 assert(ret);
62 assert(!!filename == (section_line > 0));
63
64 if (filename) {
65 r = network_config_section_new(filename, section_line, &n);
66 if (r < 0)
67 return r;
68
69 if (section_line) {
70 prefix = hashmap_get(network->prefixes_by_section, n);
71 if (prefix) {
1cc6c93a 72 *ret = TAKE_PTR(prefix);
6e849e95
PF		 73
74 return 0;
75 }
76 }
77 }
78
79 r = prefix_new(&prefix);
80 if (r < 0)
81 return r;
82
0f7f2769
YW		 83 prefix->network = network;
84 LIST_APPEND(prefixes, network->static_prefixes, prefix);
85 network->n_static_prefixes++;
86
6e849e95 87 if (filename) {
1cc6c93a 88 prefix->section = TAKE_PTR(n);
6e849e95 89
3e570042
YW		 90 r = hashmap_ensure_allocated(&network->prefixes_by_section, &network_config_hash_ops);
91 if (r < 0)
92 return r;
93
94 r = hashmap_put(network->prefixes_by_section, prefix->section, prefix);
6e849e95
PF		 95 if (r < 0)
96 return r;
97 }
98
1cc6c93a 99 *ret = TAKE_PTR(prefix);
6e849e95
PF		 100
101 return 0;
102}
103
95081e08
YW		 104static int route_prefix_new(RoutePrefix **ret) {
105 _cleanup_(route_prefix_freep) RoutePrefix *prefix = NULL;
203d4df5 106
95081e08 107 prefix = new0(RoutePrefix, 1);
203d4df5
SS		 108 if (!prefix)
109 return -ENOMEM;
110
111 if (sd_radv_route_prefix_new(&prefix->radv_route_prefix) < 0)
112 return -ENOMEM;
113
114 *ret = TAKE_PTR(prefix);
115
116 return 0;
117}
118
95081e08 119void route_prefix_free(RoutePrefix *prefix) {
203d4df5
SS		 120 if (!prefix)
121 return;
122
123 if (prefix->network) {
95081e08 124 LIST_REMOVE(route_prefixes, prefix->network->static_route_prefixes, prefix);
203d4df5
SS		 125 assert(prefix->network->n_static_route_prefixes > 0);
126 prefix->network->n_static_route_prefixes--;
127
128 if (prefix->section)
129 hashmap_remove(prefix->network->route_prefixes_by_section,
130 prefix->section);
131 }
132
133 network_config_section_free(prefix->section);
471e126b 134 sd_radv_route_prefix_unref(prefix->radv_route_prefix);
203d4df5
SS		 135
136 free(prefix);
137}
138
139static int route_prefix_new_static(Network *network, const char *filename,
95081e08 140 unsigned section_line, RoutePrefix **ret) {
203d4df5 141 _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL;
95081e08 142 _cleanup_(route_prefix_freep) RoutePrefix *prefix = NULL;
203d4df5
SS		 143 int r;
144
145 assert(network);
146 assert(ret);
147 assert(!!filename == (section_line > 0));
148
149 if (filename) {
150 r = network_config_section_new(filename, section_line, &n);
151 if (r < 0)
152 return r;
153
154 if (section_line) {
155 prefix = hashmap_get(network->route_prefixes_by_section, n);
156 if (prefix) {
157 *ret = TAKE_PTR(prefix);
158
159 return 0;
160 }
161 }
162 }
163
164 r = route_prefix_new(&prefix);
165 if (r < 0)
166 return r;
167
168 prefix->network = network;
95081e08 169 LIST_APPEND(route_prefixes, network->static_route_prefixes, prefix);
203d4df5
SS		 170 network->n_static_route_prefixes++;
171
172 if (filename) {
173 prefix->section = TAKE_PTR(n);
174
175 r = hashmap_ensure_allocated(&network->route_prefixes_by_section, &network_config_hash_ops);
176 if (r < 0)
177 return r;
178
179 r = hashmap_put(network->route_prefixes_by_section, prefix->section, prefix);
180 if (r < 0)
181 return r;
182 }
183
184 *ret = TAKE_PTR(prefix);
185
186 return 0;
187}
188
6e849e95 189int config_parse_prefix(const char *unit,
203d4df5
SS		 190 const char *filename,
191 unsigned line,
192 const char *section,
193 unsigned section_line,
194 const char *lvalue,
195 int ltype,
196 const char *rvalue,
197 void *data,
198 void *userdata) {
6e849e95
PF		 199
200 Network *network = userdata;
fcbf4cb7 201 _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL;
6e849e95
PF		 202 uint8_t prefixlen = 64;
203 union in_addr_union in6addr;
204 int r;
205
206 assert(filename);
207 assert(section);
208 assert(lvalue);
209 assert(rvalue);
210 assert(data);
211
212 r = prefix_new_static(network, filename, section_line, &p);
213 if (r < 0)
214 return r;
215
216 r = in_addr_prefix_from_string(rvalue, AF_INET6, &in6addr, &prefixlen);
217 if (r < 0) {
218 log_syntax(unit, LOG_ERR, filename, line, r, "Prefix is invalid, ignoring assignment: %s", rvalue);
219 return 0;
220 }
221
222 if (sd_radv_prefix_set_prefix(p->radv_prefix, &in6addr.in6, prefixlen) < 0)
223 return -EADDRNOTAVAIL;
224
225 log_syntax(unit, LOG_INFO, filename, line, r, "Found prefix %s", rvalue);
226
227 p = NULL;
228
229 return 0;
230}
231
232int config_parse_prefix_flags(const char *unit,
233 const char *filename,
234 unsigned line,
235 const char *section,
236 unsigned section_line,
237 const char *lvalue,
238 int ltype,
239 const char *rvalue,
240 void *data,
241 void *userdata) {
242 Network *network = userdata;
fcbf4cb7 243 _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL;
6e849e95
PF		 244 int r, val;
245
246 assert(filename);
247 assert(section);
248 assert(lvalue);
249 assert(rvalue);
250 assert(data);
251
252 r = prefix_new_static(network, filename, section_line, &p);
253 if (r < 0)
254 return r;
255
256 r = parse_boolean(rvalue);
257 if (r < 0) {
258 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse address flag, ignoring: %s", rvalue);
259 return 0;
260 }
261
262 val = r;
263
264 if (streq(lvalue, "OnLink"))
265 r = sd_radv_prefix_set_onlink(p->radv_prefix, val);
266 else if (streq(lvalue, "AddressAutoconfiguration"))
267 r = sd_radv_prefix_set_address_autoconfiguration(p->radv_prefix, val);
268 if (r < 0)
269 return r;
270
271 p = NULL;
272
273 return 0;
274}
275
276int config_parse_prefix_lifetime(const char *unit,
277 const char *filename,
278 unsigned line,
279 const char *section,
280 unsigned section_line,
281 const char *lvalue,
282 int ltype,
283 const char *rvalue,
284 void *data,
285 void *userdata) {
286 Network *network = userdata;
fcbf4cb7 287 _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL;
6e849e95
PF		 288 usec_t usec;
289 int r;
290
291 assert(filename);
292 assert(section);
293 assert(lvalue);
294 assert(rvalue);
295 assert(data);
296
297 r = prefix_new_static(network, filename, section_line, &p);
298 if (r < 0)
299 return r;
300
301 r = parse_sec(rvalue, &usec);
302 if (r < 0) {
303 log_syntax(unit, LOG_ERR, filename, line, r, "Lifetime is invalid, ignoring assignment: %s", rvalue);
304 return 0;
305 }
306
307 /* a value of 0xffffffff represents infinity */
308 if (streq(lvalue, "PreferredLifetimeSec"))
309 r = sd_radv_prefix_set_preferred_lifetime(p->radv_prefix,
310 DIV_ROUND_UP(usec, USEC_PER_SEC));
311 else if (streq(lvalue, "ValidLifetimeSec"))
312 r = sd_radv_prefix_set_valid_lifetime(p->radv_prefix,
313 DIV_ROUND_UP(usec, USEC_PER_SEC));
314 if (r < 0)
315 return r;
316
317 p = NULL;
318
319 return 0;
320}
091214b6 321
203d4df5
SS		 322int config_parse_route_prefix(const char *unit,
323 const char *filename,
324 unsigned line,
325 const char *section,
326 unsigned section_line,
327 const char *lvalue,
328 int ltype,
329 const char *rvalue,
330 void *data,
331 void *userdata) {
332
333 Network *network = userdata;
95081e08 334 _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL;
203d4df5
SS		 335 uint8_t prefixlen = 64;
336 union in_addr_union in6addr;
337 int r;
338
339 assert(filename);
340 assert(section);
341 assert(lvalue);
342 assert(rvalue);
343 assert(data);
344
345 r = route_prefix_new_static(network, filename, section_line, &p);
346 if (r < 0)
347 return r;
348
349 r = in_addr_prefix_from_string(rvalue, AF_INET6, &in6addr, &prefixlen);
350 if (r < 0) {
351 log_syntax(unit, LOG_ERR, filename, line, r, "Route prefix is invalid, ignoring assignment: %s", rvalue);
352 return 0;
353 }
354
355 if (sd_radv_prefix_set_route_prefix(p->radv_route_prefix, &in6addr.in6, prefixlen) < 0)
356 return -EADDRNOTAVAIL;
357
358 log_syntax(unit, LOG_INFO, filename, line, r, "Found route prefix %s", rvalue);
359
360 p = NULL;
361
362 return 0;
363}
364
365int config_parse_route_prefix_lifetime(const char *unit,
366 const char *filename,
367 unsigned line,
368 const char *section,
369 unsigned section_line,
370 const char *lvalue,
371 int ltype,
372 const char *rvalue,
373 void *data,
374 void *userdata) {
375 Network *network = userdata;
95081e08 376 _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL;
203d4df5
SS		 377 usec_t usec;
378 int r;
379
380 assert(filename);
381 assert(section);
382 assert(lvalue);
383 assert(rvalue);
384 assert(data);
385
386 r = route_prefix_new_static(network, filename, section_line, &p);
387 if (r < 0)
388 return r;
389
390 r = parse_sec(rvalue, &usec);
391 if (r < 0) {
095b3a7d
YW		 392 log_syntax(unit, LOG_ERR, filename, line, r,
393 "Route lifetime is invalid, ignoring assignment: %s", rvalue);
203d4df5
SS		 394 return 0;
395 }
396
397 /* a value of 0xffffffff represents infinity */
398 r = sd_radv_route_prefix_set_lifetime(p->radv_route_prefix, DIV_ROUND_UP(usec, USEC_PER_SEC));
399 if (r < 0)
400 return r;
401
402 p = NULL;
403
404 return 0;
405}
406
c555a358
PF		 407static int radv_get_ip6dns(Network *network, struct in6_addr **dns,
408 size_t *n_dns) {
409 _cleanup_free_ struct in6_addr *addresses = NULL;
410 size_t i, n_addresses = 0, n_allocated = 0;
411
412 assert(network);
413 assert(dns);
414 assert(n_dns);
415
416 for (i = 0; i < network->n_dns; i++) {
417 union in_addr_union *addr;
418
419 if (network->dns[i].family != AF_INET6)
420 continue;
421
422 addr = &network->dns[i].address;
423
424 if (in_addr_is_null(AF_INET6, addr) ||
425 in_addr_is_link_local(AF_INET6, addr) ||
426 in_addr_is_localhost(AF_INET6, addr))
427 continue;
428
429 if (!GREEDY_REALLOC(addresses, n_allocated, n_addresses + 1))
430 return -ENOMEM;
431
432 addresses[n_addresses++] = addr->in6;
433 }
434
435 if (addresses) {
ae2a15bc 436 *dns = TAKE_PTR(addresses);
c555a358
PF		 437
438 *n_dns = n_addresses;
439 }
440
441 return n_addresses;
442}
443
444static int radv_set_dns(Link *link, Link *uplink) {
445 _cleanup_free_ struct in6_addr *dns = NULL;
c555a358 446 usec_t lifetime_usec;
fd3ef936 447 size_t n_dns;
c555a358
PF		 448 int r;
449
450 if (!link->network->router_emit_dns)
451 return 0;
452
453 if (link->network->router_dns) {
fd3ef936
YW		 454 struct in6_addr *p;
455
456 dns = new(struct in6_addr, link->network->n_router_dns);
4e361acc 457 if (!dns)
c555a358
PF		 458 return -ENOMEM;
459
fd3ef936
YW		 460 p = dns;
461 for (size_t i = 0; i < link->network->n_router_dns; i++)
462 if (IN6_IS_ADDR_UNSPECIFIED(&link->network->router_dns[i])) {
463 if (!IN6_IS_ADDR_UNSPECIFIED(&link->ipv6ll_address))
464 *(p++) = link->ipv6ll_address;
465 } else
466 *(p++) = link->network->router_dns[i];
467
468 n_dns = p - dns;
c555a358
PF		 469 lifetime_usec = link->network->router_dns_lifetime_usec;
470
471 goto set_dns;
472 }
473
474 lifetime_usec = SD_RADV_DEFAULT_DNS_LIFETIME_USEC;
475
476 r = radv_get_ip6dns(link->network, &dns, &n_dns);
477 if (r > 0)
478 goto set_dns;
479
480 if (uplink) {
4e361acc 481 if (!uplink->network) {
349a981d
PF		 482 log_link_debug(uplink, "Cannot fetch DNS servers as uplink interface is not managed by us");
483 return 0;
484 }
485
c555a358
PF		 486 r = radv_get_ip6dns(uplink->network, &dns, &n_dns);
487 if (r > 0)
488 goto set_dns;
489 }
490
491 return 0;
492
493 set_dns:
494 return sd_radv_set_rdnss(link->radv,
495 DIV_ROUND_UP(lifetime_usec, USEC_PER_SEC),
496 dns, n_dns);
497}
498
499static int radv_set_domains(Link *link, Link *uplink) {
5e2a51d5 500 OrderedSet *search_domains;
c555a358 501 usec_t lifetime_usec;
5e2a51d5 502 _cleanup_free_ char **s = NULL; /* just free() because the strings are owned by the set */
c555a358
PF		 503
504 if (!link->network->router_emit_domains)
505 return 0;
506
507 search_domains = link->network->router_search_domains;
508 lifetime_usec = link->network->router_dns_lifetime_usec;
509
510 if (search_domains)
511 goto set_domains;
512
513 lifetime_usec = SD_RADV_DEFAULT_DNS_LIFETIME_USEC;
514
515 search_domains = link->network->search_domains;
516 if (search_domains)
517 goto set_domains;
518
519 if (uplink) {
4e361acc 520 if (!uplink->network) {
349a981d
PF		 521 log_link_debug(uplink, "Cannot fetch DNS search domains as uplink interface is not managed by us");
522 return 0;
523 }
524
c555a358
PF		 525 search_domains = uplink->network->search_domains;
526 if (search_domains)
527 goto set_domains;
528 }
529
530 return 0;
531
532 set_domains:
5e2a51d5
ZJS		 533 s = ordered_set_get_strv(search_domains);
534 if (!s)
535 return log_oom();
536
c555a358
PF		 537 return sd_radv_set_dnssl(link->radv,
538 DIV_ROUND_UP(lifetime_usec, USEC_PER_SEC),
5e2a51d5 539 s);
c555a358
PF		 540
541}
542
543int radv_emit_dns(Link *link) {
544 Link *uplink;
545 int r;
546
547 uplink = manager_find_uplink(link->manager, link);
548
549 r = radv_set_dns(link, uplink);
550 if (r < 0)
551 log_link_warning_errno(link, r, "Could not set RA DNS: %m");
552
553 r = radv_set_domains(link, uplink);
554 if (r < 0)
555 log_link_warning_errno(link, r, "Could not set RA Domains: %m");
556
557 return 0;
558}
559
091214b6 560int radv_configure(Link *link) {
95081e08 561 RoutePrefix *q;
091214b6 562 Prefix *p;
95081e08 563 int r;
091214b6
PF		 564
565 assert(link);
566 assert(link->network);
567
568 r = sd_radv_new(&link->radv);
569 if (r < 0)
570 return r;
571
572 r = sd_radv_attach_event(link->radv, NULL, 0);
573 if (r < 0)
574 return r;
575
576 r = sd_radv_set_mac(link->radv, &link->mac);
577 if (r < 0)
578 return r;
579
580 r = sd_radv_set_ifindex(link->radv, link->ifindex);
581 if (r < 0)
582 return r;
583
584 r = sd_radv_set_managed_information(link->radv, link->network->router_managed);
585 if (r < 0)
586 return r;
587
588 r = sd_radv_set_other_information(link->radv, link->network->router_other_information);
589 if (r < 0)
590 return r;
591
301a2fb9
PF		 592 /* a value of 0xffffffff represents infinity, 0x0 means this host is
593 not a router */
091214b6 594 r = sd_radv_set_router_lifetime(link->radv,
945e3225 595 DIV_ROUND_UP(link->network->router_lifetime_usec, USEC_PER_SEC));
091214b6
PF		 596 if (r < 0)
597 return r;
598
599 if (link->network->router_lifetime_usec > 0) {
600 r = sd_radv_set_preference(link->radv,
601 link->network->router_preference);
602 if (r < 0)
603 return r;
604 }
605
56a23cb4
PF		 606 if (IN_SET(link->network->router_prefix_delegation,
607 RADV_PREFIX_DELEGATION_STATIC,
608 RADV_PREFIX_DELEGATION_BOTH)) {
59ea6e57 609
56a23cb4 610 LIST_FOREACH(prefixes, p, link->network->static_prefixes) {
d601b566 611 r = sd_radv_add_prefix(link->radv, p->radv_prefix, false);
59ea6e57
LP		 612 if (r == -EEXIST)
613 continue;
614 if (r == -ENOEXEC) {
615 log_link_warning_errno(link, r, "[IPv6Prefix] section configured without Prefix= setting, ignoring section.");
616 continue;
617 }
618 if (r < 0)
56a23cb4
PF		 619 return r;
620 }
203d4df5 621
95081e08
YW		 622 LIST_FOREACH(route_prefixes, q, link->network->static_route_prefixes) {
623 r = sd_radv_add_route_prefix(link->radv, q->radv_route_prefix, false);
203d4df5
SS		 624 if (r == -EEXIST)
625 continue;
626 if (r < 0)
627 return r;
628 }
629
091214b6
PF		 630 }
631
fd3ef936 632 return 0;
091214b6 633}
ca5ad760
YW		 634
635int config_parse_radv_dns(
636 const char *unit,
637 const char *filename,
638 unsigned line,
639 const char *section,
640 unsigned section_line,
641 const char *lvalue,
642 int ltype,
643 const char *rvalue,
644 void *data,
645 void *userdata) {
646
647 Network *n = data;
648 const char *p = rvalue;
649 int r;
650
651 assert(filename);
652 assert(lvalue);
653 assert(rvalue);
654
655 for (;;) {
656 _cleanup_free_ char *w = NULL;
657 union in_addr_union a;
658
659 r = extract_first_word(&p, &w, NULL, 0);
660 if (r == -ENOMEM)
661 return log_oom();
662 if (r < 0) {
663 log_syntax(unit, LOG_ERR, filename, line, r,
664 "Failed to extract word, ignoring: %s", rvalue);
665 return 0;
666 }
667 if (r == 0)
668 break;
669
fd3ef936
YW		 670 if (streq(w, "_link_local"))
671 a = IN_ADDR_NULL;
672 else {
673 r = in_addr_from_string(AF_INET6, w, &a);
674 if (r < 0) {
675 log_syntax(unit, LOG_ERR, filename, line, r,
676 "Failed to parse DNS server address, ignoring: %s", w);
677 continue;
678 }
ca5ad760 679
fd3ef936
YW		 680 if (in_addr_is_null(AF_INET6, &a)) {
681 log_syntax(unit, LOG_ERR, filename, line, 0,
682 "DNS server address is null, ignoring: %s", w);
683 continue;
684 }
685 }
ca5ad760 686
fd3ef936
YW		 687 struct in6_addr *m;
688 m = reallocarray(n->router_dns, n->n_router_dns + 1, sizeof(struct in6_addr));
689 if (!m)
690 return log_oom();
ca5ad760 691
fd3ef936
YW		 692 m[n->n_router_dns++] = a.in6;
693 n->router_dns = m;
ca5ad760
YW		 694 }
695
696 return 0;
697}
698
699int config_parse_radv_search_domains(
700 const char *unit,
701 const char *filename,
702 unsigned line,
703 const char *section,
704 unsigned section_line,
705 const char *lvalue,
706 int ltype,
707 const char *rvalue,
708 void *data,
709 void *userdata) {
710
711 Network *n = data;
712 const char *p = rvalue;
713 int r;
714
715 assert(filename);
716 assert(lvalue);
717 assert(rvalue);
718
719 for (;;) {
720 _cleanup_free_ char *w = NULL, *idna = NULL;
721
722 r = extract_first_word(&p, &w, NULL, 0);
723 if (r == -ENOMEM)
724 return log_oom();
725 if (r < 0) {
726 log_syntax(unit, LOG_ERR, filename, line, r,
727 "Failed to extract word, ignoring: %s", rvalue);
728 return 0;
729 }
730 if (r == 0)
731 break;
732
733 r = dns_name_apply_idna(w, &idna);
734 if (r < 0) {
735 log_syntax(unit, LOG_ERR, filename, line, r,
736 "Failed to apply IDNA to domain name '%s', ignoring: %m", w);
737 continue;
738 } else if (r == 0)
739 /* transfer ownership to simplify subsequent operations */
740 idna = TAKE_PTR(w);
741
742 r = ordered_set_ensure_allocated(&n->router_search_domains, &string_hash_ops);
743 if (r < 0)
744 return r;
745
746 r = ordered_set_consume(n->router_search_domains, TAKE_PTR(idna));
747 if (r < 0)
748 return r;
749 }
750
751 return 0;
752}
753
754static const char * const radv_prefix_delegation_table[_RADV_PREFIX_DELEGATION_MAX] = {
755 [RADV_PREFIX_DELEGATION_NONE] = "no",
756 [RADV_PREFIX_DELEGATION_STATIC] = "static",
757 [RADV_PREFIX_DELEGATION_DHCP6] = "dhcpv6",
758 [RADV_PREFIX_DELEGATION_BOTH] = "yes",
759};
760
761DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(
762 radv_prefix_delegation,
763 RADVPrefixDelegation,
764 RADV_PREFIX_DELEGATION_BOTH);
765
766int config_parse_router_prefix_delegation(
767 const char *unit,
768 const char *filename,
769 unsigned line,
770 const char *section,
771 unsigned section_line,
772 const char *lvalue,
773 int ltype,
774 const char *rvalue,
775 void *data,
776 void *userdata) {
777
778 Network *network = userdata;
779 RADVPrefixDelegation d;
780
781 assert(filename);
782 assert(section);
783 assert(lvalue);
784 assert(rvalue);
785 assert(data);
786
787 d = radv_prefix_delegation_from_string(rvalue);
788 if (d < 0) {
789 log_syntax(unit, LOG_ERR, filename, line, -EINVAL, "Invalid router prefix delegation '%s', ignoring assignment.", rvalue);
790 return 0;
791 }
792
793 network->router_prefix_delegation = d;
794
795 return 0;
796}
797
798int config_parse_router_preference(const char *unit,
799 const char *filename,
800 unsigned line,
801 const char *section,
802 unsigned section_line,
803 const char *lvalue,
804 int ltype,
805 const char *rvalue,
806 void *data,
807 void *userdata) {
808 Network *network = userdata;
809
810 assert(filename);
811 assert(section);
812 assert(lvalue);
813 assert(rvalue);
814 assert(data);
815
816 if (streq(rvalue, "high"))
817 network->router_preference = SD_NDISC_PREFERENCE_HIGH;
818 else if (STR_IN_SET(rvalue, "medium", "normal", "default"))
819 network->router_preference = SD_NDISC_PREFERENCE_MEDIUM;
820 else if (streq(rvalue, "low"))
821 network->router_preference = SD_NDISC_PREFERENCE_LOW;
822 else
823 log_syntax(unit, LOG_ERR, filename, line, -EINVAL, "Router preference '%s' is invalid, ignoring assignment: %m", rvalue);
824
825 return 0;
826}
Unnamed repository; edit this file 'description' to name the repository.