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network: fix indentation
[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
bd6379ec
SS		 322int config_parse_prefix_assign(
323 const char *unit,
324 const char *filename,
325 unsigned line,
326 const char *section,
327 unsigned section_line,
328 const char *lvalue,
329 int ltype,
330 const char *rvalue,
331 void *data,
332 void *userdata) {
333
334 Network *network = userdata;
335 _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL;
336 int r;
337
338 assert(filename);
339 assert(section);
340 assert(lvalue);
341 assert(rvalue);
342 assert(data);
343
344 r = prefix_new_static(network, filename, section_line, &p);
345 if (r < 0)
346 return r;
347
348 r = parse_boolean(rvalue);
349 if (r < 0) {
350 log_syntax(unit, LOG_ERR, filename, line, r,
351 "Failed to parse %s=, ignoring assignment: %s",
352 lvalue, rvalue);
353 return 0;
354 }
355
356 p->assign = r;
357 p = NULL;
358
359 return 0;
360}
361
203d4df5
SS		 362int config_parse_route_prefix(const char *unit,
363 const char *filename,
364 unsigned line,
365 const char *section,
366 unsigned section_line,
367 const char *lvalue,
368 int ltype,
369 const char *rvalue,
370 void *data,
371 void *userdata) {
372
373 Network *network = userdata;
95081e08 374 _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL;
203d4df5
SS		 375 uint8_t prefixlen = 64;
376 union in_addr_union in6addr;
377 int r;
378
379 assert(filename);
380 assert(section);
381 assert(lvalue);
382 assert(rvalue);
383 assert(data);
384
385 r = route_prefix_new_static(network, filename, section_line, &p);
386 if (r < 0)
387 return r;
388
389 r = in_addr_prefix_from_string(rvalue, AF_INET6, &in6addr, &prefixlen);
390 if (r < 0) {
391 log_syntax(unit, LOG_ERR, filename, line, r, "Route prefix is invalid, ignoring assignment: %s", rvalue);
392 return 0;
393 }
394
395 if (sd_radv_prefix_set_route_prefix(p->radv_route_prefix, &in6addr.in6, prefixlen) < 0)
396 return -EADDRNOTAVAIL;
397
398 log_syntax(unit, LOG_INFO, filename, line, r, "Found route prefix %s", rvalue);
399
400 p = NULL;
401
402 return 0;
403}
404
405int config_parse_route_prefix_lifetime(const char *unit,
406 const char *filename,
407 unsigned line,
408 const char *section,
409 unsigned section_line,
410 const char *lvalue,
411 int ltype,
412 const char *rvalue,
413 void *data,
414 void *userdata) {
415 Network *network = userdata;
95081e08 416 _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL;
203d4df5
SS		 417 usec_t usec;
418 int r;
419
420 assert(filename);
421 assert(section);
422 assert(lvalue);
423 assert(rvalue);
424 assert(data);
425
426 r = route_prefix_new_static(network, filename, section_line, &p);
427 if (r < 0)
428 return r;
429
430 r = parse_sec(rvalue, &usec);
431 if (r < 0) {
095b3a7d
YW		 432 log_syntax(unit, LOG_ERR, filename, line, r,
433 "Route lifetime is invalid, ignoring assignment: %s", rvalue);
203d4df5
SS		 434 return 0;
435 }
436
437 /* a value of 0xffffffff represents infinity */
438 r = sd_radv_route_prefix_set_lifetime(p->radv_route_prefix, DIV_ROUND_UP(usec, USEC_PER_SEC));
439 if (r < 0)
440 return r;
441
442 p = NULL;
443
444 return 0;
445}
446
c555a358
PF		 447static int radv_get_ip6dns(Network *network, struct in6_addr **dns,
448 size_t *n_dns) {
449 _cleanup_free_ struct in6_addr *addresses = NULL;
450 size_t i, n_addresses = 0, n_allocated = 0;
451
452 assert(network);
453 assert(dns);
454 assert(n_dns);
455
456 for (i = 0; i < network->n_dns; i++) {
457 union in_addr_union *addr;
458
459 if (network->dns[i].family != AF_INET6)
460 continue;
461
462 addr = &network->dns[i].address;
463
464 if (in_addr_is_null(AF_INET6, addr) ||
465 in_addr_is_link_local(AF_INET6, addr) ||
466 in_addr_is_localhost(AF_INET6, addr))
467 continue;
468
469 if (!GREEDY_REALLOC(addresses, n_allocated, n_addresses + 1))
470 return -ENOMEM;
471
472 addresses[n_addresses++] = addr->in6;
473 }
474
475 if (addresses) {
ae2a15bc 476 *dns = TAKE_PTR(addresses);
c555a358
PF		 477
478 *n_dns = n_addresses;
479 }
480
481 return n_addresses;
482}
483
484static int radv_set_dns(Link *link, Link *uplink) {
485 _cleanup_free_ struct in6_addr *dns = NULL;
c555a358 486 usec_t lifetime_usec;
fd3ef936 487 size_t n_dns;
c555a358
PF		 488 int r;
489
490 if (!link->network->router_emit_dns)
491 return 0;
492
493 if (link->network->router_dns) {
fd3ef936
YW		 494 struct in6_addr *p;
495
496 dns = new(struct in6_addr, link->network->n_router_dns);
4e361acc 497 if (!dns)
c555a358
PF		 498 return -ENOMEM;
499
fd3ef936
YW		 500 p = dns;
501 for (size_t i = 0; i < link->network->n_router_dns; i++)
502 if (IN6_IS_ADDR_UNSPECIFIED(&link->network->router_dns[i])) {
503 if (!IN6_IS_ADDR_UNSPECIFIED(&link->ipv6ll_address))
504 *(p++) = link->ipv6ll_address;
505 } else
506 *(p++) = link->network->router_dns[i];
507
508 n_dns = p - dns;
c555a358
PF		 509 lifetime_usec = link->network->router_dns_lifetime_usec;
510
511 goto set_dns;
512 }
513
514 lifetime_usec = SD_RADV_DEFAULT_DNS_LIFETIME_USEC;
515
516 r = radv_get_ip6dns(link->network, &dns, &n_dns);
517 if (r > 0)
518 goto set_dns;
519
520 if (uplink) {
4e361acc 521 if (!uplink->network) {
349a981d
PF		 522 log_link_debug(uplink, "Cannot fetch DNS servers as uplink interface is not managed by us");
523 return 0;
524 }
525
c555a358
PF		 526 r = radv_get_ip6dns(uplink->network, &dns, &n_dns);
527 if (r > 0)
528 goto set_dns;
529 }
530
531 return 0;
532
533 set_dns:
534 return sd_radv_set_rdnss(link->radv,
535 DIV_ROUND_UP(lifetime_usec, USEC_PER_SEC),
536 dns, n_dns);
537}
538
539static int radv_set_domains(Link *link, Link *uplink) {
5e2a51d5 540 OrderedSet *search_domains;
c555a358 541 usec_t lifetime_usec;
5e2a51d5 542 _cleanup_free_ char **s = NULL; /* just free() because the strings are owned by the set */
c555a358
PF		 543
544 if (!link->network->router_emit_domains)
545 return 0;
546
547 search_domains = link->network->router_search_domains;
548 lifetime_usec = link->network->router_dns_lifetime_usec;
549
550 if (search_domains)
551 goto set_domains;
552
553 lifetime_usec = SD_RADV_DEFAULT_DNS_LIFETIME_USEC;
554
555 search_domains = link->network->search_domains;
556 if (search_domains)
557 goto set_domains;
558
559 if (uplink) {
4e361acc 560 if (!uplink->network) {
349a981d
PF		 561 log_link_debug(uplink, "Cannot fetch DNS search domains as uplink interface is not managed by us");
562 return 0;
563 }
564
c555a358
PF		 565 search_domains = uplink->network->search_domains;
566 if (search_domains)
567 goto set_domains;
568 }
569
570 return 0;
571
572 set_domains:
5e2a51d5
ZJS		 573 s = ordered_set_get_strv(search_domains);
574 if (!s)
575 return log_oom();
576
c555a358
PF		 577 return sd_radv_set_dnssl(link->radv,
578 DIV_ROUND_UP(lifetime_usec, USEC_PER_SEC),
5e2a51d5 579 s);
c555a358
PF		 580
581}
582
583int radv_emit_dns(Link *link) {
584 Link *uplink;
585 int r;
586
587 uplink = manager_find_uplink(link->manager, link);
588
589 r = radv_set_dns(link, uplink);
590 if (r < 0)
591 log_link_warning_errno(link, r, "Could not set RA DNS: %m");
592
593 r = radv_set_domains(link, uplink);
594 if (r < 0)
595 log_link_warning_errno(link, r, "Could not set RA Domains: %m");
596
597 return 0;
598}
599
091214b6 600int radv_configure(Link *link) {
95081e08 601 RoutePrefix *q;
091214b6 602 Prefix *p;
95081e08 603 int r;
091214b6
PF		 604
605 assert(link);
606 assert(link->network);
607
608 r = sd_radv_new(&link->radv);
609 if (r < 0)
610 return r;
611
612 r = sd_radv_attach_event(link->radv, NULL, 0);
613 if (r < 0)
614 return r;
615
616 r = sd_radv_set_mac(link->radv, &link->mac);
617 if (r < 0)
618 return r;
619
620 r = sd_radv_set_ifindex(link->radv, link->ifindex);
621 if (r < 0)
622 return r;
623
624 r = sd_radv_set_managed_information(link->radv, link->network->router_managed);
625 if (r < 0)
626 return r;
627
628 r = sd_radv_set_other_information(link->radv, link->network->router_other_information);
629 if (r < 0)
630 return r;
631
301a2fb9
PF		 632 /* a value of 0xffffffff represents infinity, 0x0 means this host is
633 not a router */
091214b6 634 r = sd_radv_set_router_lifetime(link->radv,
945e3225 635 DIV_ROUND_UP(link->network->router_lifetime_usec, USEC_PER_SEC));
091214b6
PF		 636 if (r < 0)
637 return r;
638
639 if (link->network->router_lifetime_usec > 0) {
640 r = sd_radv_set_preference(link->radv,
641 link->network->router_preference);
642 if (r < 0)
643 return r;
644 }
645
56a23cb4
PF		 646 if (IN_SET(link->network->router_prefix_delegation,
647 RADV_PREFIX_DELEGATION_STATIC,
648 RADV_PREFIX_DELEGATION_BOTH)) {
59ea6e57 649
56a23cb4 650 LIST_FOREACH(prefixes, p, link->network->static_prefixes) {
d601b566 651 r = sd_radv_add_prefix(link->radv, p->radv_prefix, false);
59ea6e57
LP		 652 if (r == -EEXIST)
653 continue;
654 if (r == -ENOEXEC) {
655 log_link_warning_errno(link, r, "[IPv6Prefix] section configured without Prefix= setting, ignoring section.");
656 continue;
657 }
658 if (r < 0)
56a23cb4
PF		 659 return r;
660 }
203d4df5 661
95081e08
YW		 662 LIST_FOREACH(route_prefixes, q, link->network->static_route_prefixes) {
663 r = sd_radv_add_route_prefix(link->radv, q->radv_route_prefix, false);
203d4df5
SS		 664 if (r == -EEXIST)
665 continue;
666 if (r < 0)
667 return r;
668 }
669
091214b6
PF		 670 }
671
fd3ef936 672 return 0;
091214b6 673}
ca5ad760
YW		 674
675int config_parse_radv_dns(
676 const char *unit,
677 const char *filename,
678 unsigned line,
679 const char *section,
680 unsigned section_line,
681 const char *lvalue,
682 int ltype,
683 const char *rvalue,
684 void *data,
685 void *userdata) {
686
687 Network *n = data;
688 const char *p = rvalue;
689 int r;
690
691 assert(filename);
692 assert(lvalue);
693 assert(rvalue);
694
695 for (;;) {
696 _cleanup_free_ char *w = NULL;
697 union in_addr_union a;
698
699 r = extract_first_word(&p, &w, NULL, 0);
700 if (r == -ENOMEM)
701 return log_oom();
702 if (r < 0) {
703 log_syntax(unit, LOG_ERR, filename, line, r,
704 "Failed to extract word, ignoring: %s", rvalue);
705 return 0;
706 }
707 if (r == 0)
708 break;
709
fd3ef936
YW		 710 if (streq(w, "_link_local"))
711 a = IN_ADDR_NULL;
712 else {
713 r = in_addr_from_string(AF_INET6, w, &a);
714 if (r < 0) {
715 log_syntax(unit, LOG_ERR, filename, line, r,
716 "Failed to parse DNS server address, ignoring: %s", w);
717 continue;
718 }
ca5ad760 719
fd3ef936
YW		 720 if (in_addr_is_null(AF_INET6, &a)) {
721 log_syntax(unit, LOG_ERR, filename, line, 0,
722 "DNS server address is null, ignoring: %s", w);
723 continue;
724 }
725 }
ca5ad760 726
fd3ef936
YW		 727 struct in6_addr *m;
728 m = reallocarray(n->router_dns, n->n_router_dns + 1, sizeof(struct in6_addr));
729 if (!m)
730 return log_oom();
ca5ad760 731
fd3ef936
YW		 732 m[n->n_router_dns++] = a.in6;
733 n->router_dns = m;
ca5ad760
YW		 734 }
735
736 return 0;
737}
738
739int config_parse_radv_search_domains(
740 const char *unit,
741 const char *filename,
742 unsigned line,
743 const char *section,
744 unsigned section_line,
745 const char *lvalue,
746 int ltype,
747 const char *rvalue,
748 void *data,
749 void *userdata) {
750
751 Network *n = data;
752 const char *p = rvalue;
753 int r;
754
755 assert(filename);
756 assert(lvalue);
757 assert(rvalue);
758
759 for (;;) {
760 _cleanup_free_ char *w = NULL, *idna = NULL;
761
762 r = extract_first_word(&p, &w, NULL, 0);
763 if (r == -ENOMEM)
764 return log_oom();
765 if (r < 0) {
766 log_syntax(unit, LOG_ERR, filename, line, r,
767 "Failed to extract word, ignoring: %s", rvalue);
768 return 0;
769 }
770 if (r == 0)
771 break;
772
773 r = dns_name_apply_idna(w, &idna);
774 if (r < 0) {
775 log_syntax(unit, LOG_ERR, filename, line, r,
776 "Failed to apply IDNA to domain name '%s', ignoring: %m", w);
777 continue;
778 } else if (r == 0)
779 /* transfer ownership to simplify subsequent operations */
780 idna = TAKE_PTR(w);
781
782 r = ordered_set_ensure_allocated(&n->router_search_domains, &string_hash_ops);
783 if (r < 0)
784 return r;
785
786 r = ordered_set_consume(n->router_search_domains, TAKE_PTR(idna));
787 if (r < 0)
788 return r;
789 }
790
791 return 0;
792}
793
794static const char * const radv_prefix_delegation_table[_RADV_PREFIX_DELEGATION_MAX] = {
795 [RADV_PREFIX_DELEGATION_NONE] = "no",
796 [RADV_PREFIX_DELEGATION_STATIC] = "static",
797 [RADV_PREFIX_DELEGATION_DHCP6] = "dhcpv6",
798 [RADV_PREFIX_DELEGATION_BOTH] = "yes",
799};
800
801DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(
802 radv_prefix_delegation,
803 RADVPrefixDelegation,
804 RADV_PREFIX_DELEGATION_BOTH);
805
806int config_parse_router_prefix_delegation(
807 const char *unit,
808 const char *filename,
809 unsigned line,
810 const char *section,
811 unsigned section_line,
812 const char *lvalue,
813 int ltype,
814 const char *rvalue,
815 void *data,
816 void *userdata) {
817
818 Network *network = userdata;
819 RADVPrefixDelegation d;
820
821 assert(filename);
822 assert(section);
823 assert(lvalue);
824 assert(rvalue);
825 assert(data);
826
827 d = radv_prefix_delegation_from_string(rvalue);
828 if (d < 0) {
829 log_syntax(unit, LOG_ERR, filename, line, -EINVAL, "Invalid router prefix delegation '%s', ignoring assignment.", rvalue);
830 return 0;
831 }
832
833 network->router_prefix_delegation = d;
834
835 return 0;
836}
837
838int config_parse_router_preference(const char *unit,
839 const char *filename,
840 unsigned line,
841 const char *section,
842 unsigned section_line,
843 const char *lvalue,
844 int ltype,
845 const char *rvalue,
846 void *data,
847 void *userdata) {
848 Network *network = userdata;
849
850 assert(filename);
851 assert(section);
852 assert(lvalue);
853 assert(rvalue);
854 assert(data);
855
856 if (streq(rvalue, "high"))
857 network->router_preference = SD_NDISC_PREFERENCE_HIGH;
858 else if (STR_IN_SET(rvalue, "medium", "normal", "default"))
859 network->router_preference = SD_NDISC_PREFERENCE_MEDIUM;
860 else if (streq(rvalue, "low"))
861 network->router_preference = SD_NDISC_PREFERENCE_LOW;
862 else
863 log_syntax(unit, LOG_ERR, filename, line, -EINVAL, "Router preference '%s' is invalid, ignoring assignment: %m", rvalue);
864
865 return 0;
866}
02e9e34b
AR		 867
868int config_parse_router_prefix_subnet_id(const char *unit,
869 const char *filename,
870 unsigned line,
871 const char *section,
872 unsigned section_line,
873 const char *lvalue,
874 int ltype,
875 const char *rvalue,
876 void *data,
877 void *userdata) {
878 Network *network = userdata;
879 uint64_t t;
880 int r;
881
882 assert(filename);
883 assert(lvalue);
884 assert(rvalue);
885 assert(data);
886
887 if (isempty(rvalue) || streq(rvalue, "auto")) {
888 network->router_prefix_subnet_id = -1;
889 return 0;
890 }
891
892 r = safe_atoux64(rvalue, &t);
893 if (r < 0 || t > INT64_MAX) {
894 log_syntax(unit, LOG_ERR, filename, line, r,
895 "Subnet id '%s' is invalid, ignoring assignment.",
896 rvalue);
897 return 0;
898 }
899
900 network->router_prefix_subnet_id = (int64_t)t;
901
902 return 0;
903}
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