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Commit | Line | Data |
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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
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" |
f09a4747 | 10 | #include "networkd-address-generation.h" |
3b6a3bde | 11 | #include "networkd-address.h" |
0f96a823 | 12 | #include "networkd-dhcp6.h" |
b5ce4047 | 13 | #include "networkd-link.h" |
c555a358 | 14 | #include "networkd-manager.h" |
b5ce4047 | 15 | #include "networkd-network.h" |
a254fab2 | 16 | #include "networkd-queue.h" |
091214b6 | 17 | #include "networkd-radv.h" |
3b6a3bde | 18 | #include "networkd-route.h" |
6e849e95 | 19 | #include "parse-util.h" |
4f1ac4a3 | 20 | #include "radv-internal.h" |
6e849e95 | 21 | #include "string-util.h" |
6b1dec66 | 22 | #include "string-table.h" |
51517f9e | 23 | #include "strv.h" |
6e849e95 | 24 | |
0943b3b7 YW |
25 | void network_adjust_radv(Network *network) { |
26 | assert(network); | |
27 | ||
28 | /* After this function is called, network->router_prefix_delegation can be treated as a boolean. */ | |
29 | ||
30 | if (network->dhcp6_pd < 0) | |
31 | /* For backward compatibility. */ | |
32 | network->dhcp6_pd = FLAGS_SET(network->router_prefix_delegation, RADV_PREFIX_DELEGATION_DHCP6); | |
33 | ||
34 | if (!FLAGS_SET(network->link_local, ADDRESS_FAMILY_IPV6)) { | |
35 | if (network->router_prefix_delegation != RADV_PREFIX_DELEGATION_NONE) | |
36 | log_warning("%s: IPv6PrefixDelegation= is enabled but IPv6 link local addressing is disabled. " | |
37 | "Disabling IPv6PrefixDelegation=.", network->filename); | |
38 | ||
39 | network->router_prefix_delegation = RADV_PREFIX_DELEGATION_NONE; | |
40 | } | |
41 | ||
42 | if (network->router_prefix_delegation == RADV_PREFIX_DELEGATION_NONE) { | |
43 | network->n_router_dns = 0; | |
44 | network->router_dns = mfree(network->router_dns); | |
45 | network->router_search_domains = ordered_set_free(network->router_search_domains); | |
46 | } | |
47 | ||
48 | if (!FLAGS_SET(network->router_prefix_delegation, RADV_PREFIX_DELEGATION_STATIC)) { | |
49 | network->prefixes_by_section = hashmap_free_with_destructor(network->prefixes_by_section, prefix_free); | |
50 | network->route_prefixes_by_section = hashmap_free_with_destructor(network->route_prefixes_by_section, route_prefix_free); | |
51 | } | |
52 | } | |
53 | ||
0f96a823 | 54 | bool link_radv_enabled(Link *link) { |
0943b3b7 YW |
55 | assert(link); |
56 | ||
57 | if (!link_ipv6ll_enabled(link)) | |
58 | return false; | |
59 | ||
60 | return link->network->router_prefix_delegation; | |
61 | } | |
62 | ||
064dfb05 | 63 | Prefix *prefix_free(Prefix *prefix) { |
6e849e95 | 64 | if (!prefix) |
064dfb05 | 65 | return NULL; |
6e849e95 PF |
66 | |
67 | if (prefix->network) { | |
ecb0e85e YW |
68 | assert(prefix->section); |
69 | hashmap_remove(prefix->network->prefixes_by_section, prefix->section); | |
6e849e95 PF |
70 | } |
71 | ||
ecee0abe | 72 | network_config_section_free(prefix->section); |
e609cd06 | 73 | set_free(prefix->tokens); |
6e849e95 | 74 | |
064dfb05 | 75 | return mfree(prefix); |
6e849e95 PF |
76 | } |
77 | ||
064dfb05 YW |
78 | DEFINE_NETWORK_SECTION_FUNCTIONS(Prefix, prefix_free); |
79 | ||
a8d4a210 | 80 | static int prefix_new_static(Network *network, const char *filename, unsigned section_line, Prefix **ret) { |
8e766630 LP |
81 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
82 | _cleanup_(prefix_freep) Prefix *prefix = NULL; | |
6e849e95 PF |
83 | int r; |
84 | ||
85 | assert(network); | |
86 | assert(ret); | |
ecb0e85e YW |
87 | assert(filename); |
88 | assert(section_line > 0); | |
6e849e95 | 89 | |
ecb0e85e YW |
90 | r = network_config_section_new(filename, section_line, &n); |
91 | if (r < 0) | |
92 | return r; | |
6e849e95 | 93 | |
ecb0e85e YW |
94 | prefix = hashmap_get(network->prefixes_by_section, n); |
95 | if (prefix) { | |
96 | *ret = TAKE_PTR(prefix); | |
97 | return 0; | |
6e849e95 PF |
98 | } |
99 | ||
2ac41679 YW |
100 | prefix = new(Prefix, 1); |
101 | if (!prefix) | |
102 | return -ENOMEM; | |
103 | ||
104 | *prefix = (Prefix) { | |
105 | .network = network, | |
106 | .section = TAKE_PTR(n), | |
6e849e95 | 107 | |
c9e2c2da YW |
108 | .preferred_lifetime = RADV_DEFAULT_PREFERRED_LIFETIME_USEC, |
109 | .valid_lifetime = RADV_DEFAULT_VALID_LIFETIME_USEC, | |
2ac41679 YW |
110 | .onlink = true, |
111 | .address_auto_configuration = true, | |
112 | }; | |
6e849e95 | 113 | |
b9eea0a7 | 114 | r = hashmap_ensure_put(&network->prefixes_by_section, &network_config_hash_ops, prefix->section, prefix); |
ecb0e85e YW |
115 | if (r < 0) |
116 | return r; | |
6e849e95 | 117 | |
1cc6c93a | 118 | *ret = TAKE_PTR(prefix); |
6e849e95 PF |
119 | return 0; |
120 | } | |
121 | ||
064dfb05 | 122 | RoutePrefix *route_prefix_free(RoutePrefix *prefix) { |
203d4df5 | 123 | if (!prefix) |
064dfb05 | 124 | return NULL; |
203d4df5 SS |
125 | |
126 | if (prefix->network) { | |
ecb0e85e YW |
127 | assert(prefix->section); |
128 | hashmap_remove(prefix->network->route_prefixes_by_section, prefix->section); | |
203d4df5 SS |
129 | } |
130 | ||
131 | network_config_section_free(prefix->section); | |
132 | ||
064dfb05 YW |
133 | return mfree(prefix); |
134 | } | |
135 | ||
136 | DEFINE_NETWORK_SECTION_FUNCTIONS(RoutePrefix, route_prefix_free); | |
137 | ||
a8d4a210 | 138 | static int route_prefix_new_static(Network *network, const char *filename, unsigned section_line, RoutePrefix **ret) { |
203d4df5 | 139 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
95081e08 | 140 | _cleanup_(route_prefix_freep) RoutePrefix *prefix = NULL; |
203d4df5 SS |
141 | int r; |
142 | ||
143 | assert(network); | |
144 | assert(ret); | |
ecb0e85e YW |
145 | assert(filename); |
146 | assert(section_line > 0); | |
203d4df5 | 147 | |
ecb0e85e YW |
148 | r = network_config_section_new(filename, section_line, &n); |
149 | if (r < 0) | |
150 | return r; | |
203d4df5 | 151 | |
ecb0e85e YW |
152 | prefix = hashmap_get(network->route_prefixes_by_section, n); |
153 | if (prefix) { | |
154 | *ret = TAKE_PTR(prefix); | |
155 | return 0; | |
203d4df5 SS |
156 | } |
157 | ||
2ac41679 YW |
158 | prefix = new(RoutePrefix, 1); |
159 | if (!prefix) | |
160 | return -ENOMEM; | |
203d4df5 | 161 | |
2ac41679 YW |
162 | *prefix = (RoutePrefix) { |
163 | .network = network, | |
164 | .section = TAKE_PTR(n), | |
165 | ||
c9e2c2da | 166 | .lifetime = RADV_DEFAULT_VALID_LIFETIME_USEC, |
2ac41679 | 167 | }; |
203d4df5 | 168 | |
b2cb2e82 | 169 | r = hashmap_ensure_put(&network->route_prefixes_by_section, &network_config_hash_ops, prefix->section, prefix); |
ecb0e85e YW |
170 | if (r < 0) |
171 | return r; | |
203d4df5 SS |
172 | |
173 | *ret = TAKE_PTR(prefix); | |
203d4df5 SS |
174 | return 0; |
175 | } | |
176 | ||
3b6a3bde YW |
177 | int link_request_radv_addresses(Link *link) { |
178 | Prefix *p; | |
179 | int r; | |
180 | ||
181 | assert(link); | |
182 | ||
183 | if (!link_radv_enabled(link)) | |
184 | return 0; | |
185 | ||
186 | HASHMAP_FOREACH(p, link->network->prefixes_by_section) { | |
e609cd06 | 187 | _cleanup_set_free_ Set *addresses = NULL; |
2ac41679 | 188 | struct in6_addr *a; |
3b6a3bde YW |
189 | |
190 | if (!p->assign) | |
191 | continue; | |
192 | ||
e609cd06 | 193 | /* radv_generate_addresses() below requires the prefix length <= 64. */ |
2110040b | 194 | if (p->prefixlen > 64) |
fcd7ad52 | 195 | continue; |
fcd7ad52 | 196 | |
2ac41679 | 197 | r = radv_generate_addresses(link, p->tokens, &p->prefix, p->prefixlen, &addresses); |
3b6a3bde | 198 | if (r < 0) |
e609cd06 | 199 | return r; |
00f1261d | 200 | |
e609cd06 YW |
201 | SET_FOREACH(a, addresses) { |
202 | _cleanup_(address_freep) Address *address = NULL; | |
3b6a3bde | 203 | |
e609cd06 YW |
204 | r = address_new(&address); |
205 | if (r < 0) | |
206 | return -ENOMEM; | |
3b6a3bde | 207 | |
e609cd06 YW |
208 | address->source = NETWORK_CONFIG_SOURCE_STATIC; |
209 | address->family = AF_INET6; | |
210 | address->in_addr.in6 = *a; | |
2ac41679 | 211 | address->prefixlen = p->prefixlen; |
e609cd06 YW |
212 | address->route_metric = p->route_metric; |
213 | ||
214 | r = link_request_static_address(link, TAKE_PTR(address), true); | |
215 | if (r < 0) | |
216 | return r; | |
217 | } | |
3b6a3bde YW |
218 | } |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
2ac41679 YW |
223 | static uint32_t usec_to_lifetime(usec_t usec) { |
224 | uint64_t t; | |
225 | ||
226 | if (usec == USEC_INFINITY) | |
227 | return UINT32_MAX; | |
228 | ||
229 | t = DIV_ROUND_UP(usec, USEC_PER_SEC); | |
230 | if (t >= UINT32_MAX) | |
231 | return UINT32_MAX; | |
232 | ||
233 | return (uint32_t) t; | |
234 | } | |
235 | ||
236 | static int radv_set_prefix(Link *link, Prefix *prefix) { | |
237 | _cleanup_(sd_radv_prefix_unrefp) sd_radv_prefix *p = NULL; | |
238 | int r; | |
239 | ||
240 | assert(link); | |
241 | assert(link->radv); | |
242 | assert(prefix); | |
243 | ||
244 | r = sd_radv_prefix_new(&p); | |
245 | if (r < 0) | |
246 | return r; | |
247 | ||
248 | r = sd_radv_prefix_set_prefix(p, &prefix->prefix, prefix->prefixlen); | |
249 | if (r < 0) | |
250 | return r; | |
251 | ||
95e104e0 | 252 | r = sd_radv_prefix_set_preferred_lifetime(p, prefix->preferred_lifetime, USEC_INFINITY); |
2ac41679 YW |
253 | if (r < 0) |
254 | return r; | |
255 | ||
95e104e0 | 256 | r = sd_radv_prefix_set_valid_lifetime(p, prefix->valid_lifetime, USEC_INFINITY); |
2ac41679 YW |
257 | if (r < 0) |
258 | return r; | |
259 | ||
260 | r = sd_radv_prefix_set_onlink(p, prefix->onlink); | |
261 | if (r < 0) | |
262 | return r; | |
263 | ||
264 | r = sd_radv_prefix_set_address_autoconfiguration(p, prefix->address_auto_configuration); | |
265 | if (r < 0) | |
266 | return r; | |
267 | ||
95e104e0 | 268 | return sd_radv_add_prefix(link->radv, p); |
2ac41679 YW |
269 | } |
270 | ||
271 | static int radv_set_route_prefix(Link *link, RoutePrefix *prefix) { | |
272 | _cleanup_(sd_radv_route_prefix_unrefp) sd_radv_route_prefix *p = NULL; | |
273 | int r; | |
274 | ||
275 | assert(link); | |
276 | assert(link->radv); | |
277 | assert(prefix); | |
278 | ||
279 | r = sd_radv_route_prefix_new(&p); | |
280 | if (r < 0) | |
281 | return r; | |
282 | ||
283 | r = sd_radv_route_prefix_set_prefix(p, &prefix->prefix, prefix->prefixlen); | |
284 | if (r < 0) | |
285 | return r; | |
286 | ||
95e104e0 | 287 | r = sd_radv_route_prefix_set_lifetime(p, prefix->lifetime, USEC_INFINITY); |
2ac41679 YW |
288 | if (r < 0) |
289 | return r; | |
290 | ||
95e104e0 | 291 | return sd_radv_add_route_prefix(link->radv, p); |
2ac41679 YW |
292 | } |
293 | ||
0943b3b7 YW |
294 | static int network_get_ipv6_dns(Network *network, struct in6_addr **ret_addresses, size_t *ret_size) { |
295 | _cleanup_free_ struct in6_addr *addresses = NULL; | |
296 | size_t n_addresses = 0; | |
6e849e95 | 297 | |
0943b3b7 YW |
298 | assert(network); |
299 | assert(ret_addresses); | |
300 | assert(ret_size); | |
6e849e95 | 301 | |
0943b3b7 YW |
302 | for (size_t i = 0; i < network->n_dns; i++) { |
303 | union in_addr_union *addr; | |
6e849e95 | 304 | |
0943b3b7 YW |
305 | if (network->dns[i]->family != AF_INET6) |
306 | continue; | |
6e849e95 | 307 | |
0943b3b7 | 308 | addr = &network->dns[i]->address; |
6e849e95 | 309 | |
0943b3b7 YW |
310 | if (in_addr_is_null(AF_INET6, addr) || |
311 | in_addr_is_link_local(AF_INET6, addr) || | |
312 | in_addr_is_localhost(AF_INET6, addr)) | |
313 | continue; | |
314 | ||
315 | if (!GREEDY_REALLOC(addresses, n_addresses + 1)) | |
316 | return -ENOMEM; | |
317 | ||
318 | addresses[n_addresses++] = addr->in6; | |
c9778516 | 319 | } |
6e849e95 | 320 | |
0943b3b7 YW |
321 | *ret_addresses = TAKE_PTR(addresses); |
322 | *ret_size = n_addresses; | |
6e849e95 | 323 | |
0943b3b7 | 324 | return n_addresses; |
6e849e95 PF |
325 | } |
326 | ||
0943b3b7 YW |
327 | static int radv_set_dns(Link *link, Link *uplink) { |
328 | _cleanup_free_ struct in6_addr *dns = NULL; | |
0943b3b7 | 329 | size_t n_dns; |
c9778516 | 330 | int r; |
6e849e95 | 331 | |
0943b3b7 | 332 | if (!link->network->router_emit_dns) |
6e849e95 | 333 | return 0; |
6e849e95 | 334 | |
0943b3b7 YW |
335 | if (link->network->router_dns) { |
336 | struct in6_addr *p; | |
6e849e95 | 337 | |
0943b3b7 YW |
338 | dns = new(struct in6_addr, link->network->n_router_dns); |
339 | if (!dns) | |
340 | return -ENOMEM; | |
6e849e95 | 341 | |
0943b3b7 YW |
342 | p = dns; |
343 | for (size_t i = 0; i < link->network->n_router_dns; i++) | |
344 | if (in6_addr_is_null(&link->network->router_dns[i])) { | |
345 | if (in6_addr_is_set(&link->ipv6ll_address)) | |
346 | *(p++) = link->ipv6ll_address; | |
347 | } else | |
348 | *(p++) = link->network->router_dns[i]; | |
6e849e95 | 349 | |
0943b3b7 | 350 | n_dns = p - dns; |
a8d4a210 | 351 | |
0943b3b7 YW |
352 | goto set_dns; |
353 | } | |
6e849e95 | 354 | |
0943b3b7 YW |
355 | r = network_get_ipv6_dns(link->network, &dns, &n_dns); |
356 | if (r > 0) | |
357 | goto set_dns; | |
6e849e95 | 358 | |
0943b3b7 YW |
359 | if (uplink) { |
360 | assert(uplink->network); | |
361 | ||
362 | r = network_get_ipv6_dns(uplink->network, &dns, &n_dns); | |
363 | if (r > 0) | |
364 | goto set_dns; | |
6e849e95 PF |
365 | } |
366 | ||
6e849e95 | 367 | return 0; |
bd6379ec | 368 | |
0943b3b7 YW |
369 | set_dns: |
370 | return sd_radv_set_rdnss(link->radv, | |
165a654e | 371 | usec_to_lifetime(link->network->router_dns_lifetime_usec), |
0943b3b7 YW |
372 | dns, n_dns); |
373 | } | |
bd6379ec | 374 | |
0943b3b7 | 375 | static int radv_set_domains(Link *link, Link *uplink) { |
0943b3b7 | 376 | _cleanup_free_ char **s = NULL; /* just free() because the strings are owned by the set */ |
165a654e | 377 | OrderedSet *search_domains; |
bd6379ec | 378 | |
0943b3b7 | 379 | if (!link->network->router_emit_domains) |
bd6379ec | 380 | return 0; |
bd6379ec | 381 | |
0943b3b7 | 382 | search_domains = link->network->router_search_domains; |
bd6379ec | 383 | |
0943b3b7 YW |
384 | if (search_domains) |
385 | goto set_domains; | |
0e1fb1d0 | 386 | |
0943b3b7 YW |
387 | search_domains = link->network->search_domains; |
388 | if (search_domains) | |
389 | goto set_domains; | |
0e1fb1d0 | 390 | |
0943b3b7 YW |
391 | if (uplink) { |
392 | assert(uplink->network); | |
0e1fb1d0 | 393 | |
0943b3b7 YW |
394 | search_domains = uplink->network->search_domains; |
395 | if (search_domains) | |
396 | goto set_domains; | |
0e1fb1d0 YW |
397 | } |
398 | ||
0e1fb1d0 | 399 | return 0; |
0e1fb1d0 | 400 | |
0943b3b7 YW |
401 | set_domains: |
402 | s = ordered_set_get_strv(search_domains); | |
403 | if (!s) | |
404 | return log_oom(); | |
203d4df5 | 405 | |
0943b3b7 | 406 | return sd_radv_set_dnssl(link->radv, |
165a654e | 407 | usec_to_lifetime(link->network->router_dns_lifetime_usec), |
0943b3b7 | 408 | s); |
203d4df5 | 409 | |
0943b3b7 | 410 | } |
203d4df5 | 411 | |
0943b3b7 YW |
412 | static int radv_find_uplink(Link *link, Link **ret) { |
413 | assert(link); | |
203d4df5 | 414 | |
0943b3b7 YW |
415 | if (link->network->router_uplink_name) |
416 | return link_get_by_name(link->manager, link->network->router_uplink_name, ret); | |
203d4df5 | 417 | |
0943b3b7 YW |
418 | if (link->network->router_uplink_index > 0) |
419 | return link_get_by_index(link->manager, link->network->router_uplink_index, ret); | |
420 | ||
421 | if (link->network->router_uplink_index == UPLINK_INDEX_AUTO) { | |
422 | /* It is not necessary to propagate error in automatic selection. */ | |
423 | if (manager_find_uplink(link->manager, AF_INET6, link, ret) < 0) | |
424 | *ret = NULL; | |
c9778516 YW |
425 | return 0; |
426 | } | |
203d4df5 | 427 | |
0943b3b7 | 428 | *ret = NULL; |
203d4df5 SS |
429 | return 0; |
430 | } | |
431 | ||
0943b3b7 | 432 | static int radv_configure(Link *link) { |
0943b3b7 YW |
433 | Link *uplink = NULL; |
434 | RoutePrefix *q; | |
435 | Prefix *p; | |
203d4df5 SS |
436 | int r; |
437 | ||
0943b3b7 YW |
438 | assert(link); |
439 | assert(link->network); | |
203d4df5 | 440 | |
0943b3b7 YW |
441 | if (link->radv) |
442 | return -EBUSY; | |
443 | ||
444 | r = sd_radv_new(&link->radv); | |
203d4df5 | 445 | if (r < 0) |
0943b3b7 | 446 | return r; |
203d4df5 | 447 | |
0943b3b7 YW |
448 | r = sd_radv_attach_event(link->radv, link->manager->event, 0); |
449 | if (r < 0) | |
450 | return r; | |
203d4df5 | 451 | |
0943b3b7 YW |
452 | r = sd_radv_set_mac(link->radv, &link->hw_addr.ether); |
453 | if (r < 0) | |
454 | return r; | |
203d4df5 | 455 | |
0943b3b7 YW |
456 | r = sd_radv_set_ifindex(link->radv, link->ifindex); |
457 | if (r < 0) | |
458 | return r; | |
203d4df5 | 459 | |
0943b3b7 YW |
460 | r = sd_radv_set_managed_information(link->radv, link->network->router_managed); |
461 | if (r < 0) | |
462 | return r; | |
203d4df5 | 463 | |
0943b3b7 YW |
464 | r = sd_radv_set_other_information(link->radv, link->network->router_other_information); |
465 | if (r < 0) | |
466 | return r; | |
c555a358 | 467 | |
7003b114 | 468 | r = sd_radv_set_router_lifetime(link->radv, link->network->router_lifetime_usec); |
0943b3b7 YW |
469 | if (r < 0) |
470 | return r; | |
c555a358 | 471 | |
7003b114 | 472 | if (link->network->router_lifetime_usec > 0) { |
0943b3b7 YW |
473 | r = sd_radv_set_preference(link->radv, link->network->router_preference); |
474 | if (r < 0) | |
475 | return r; | |
476 | } | |
c555a358 | 477 | |
0943b3b7 | 478 | HASHMAP_FOREACH(p, link->network->prefixes_by_section) { |
2ac41679 YW |
479 | r = radv_set_prefix(link, p); |
480 | if (r < 0 && r != -EEXIST) | |
0943b3b7 YW |
481 | return r; |
482 | } | |
c555a358 | 483 | |
0943b3b7 | 484 | HASHMAP_FOREACH(q, link->network->route_prefixes_by_section) { |
2ac41679 YW |
485 | r = radv_set_route_prefix(link, q); |
486 | if (r < 0 && r != -EEXIST) | |
0943b3b7 YW |
487 | return r; |
488 | } | |
c555a358 | 489 | |
0943b3b7 | 490 | (void) radv_find_uplink(link, &uplink); |
c555a358 | 491 | |
0943b3b7 YW |
492 | r = radv_set_dns(link, uplink); |
493 | if (r < 0) | |
494 | return log_link_debug_errno(link, r, "Could not set RA DNS: %m"); | |
c555a358 | 495 | |
0943b3b7 YW |
496 | r = radv_set_domains(link, uplink); |
497 | if (r < 0) | |
498 | return log_link_debug_errno(link, r, "Could not set RA Domains: %m"); | |
c555a358 | 499 | |
0943b3b7 | 500 | return 0; |
c555a358 PF |
501 | } |
502 | ||
0943b3b7 YW |
503 | int radv_update_mac(Link *link) { |
504 | bool restart; | |
c555a358 PF |
505 | int r; |
506 | ||
0943b3b7 | 507 | assert(link); |
c555a358 | 508 | |
0943b3b7 YW |
509 | if (!link->radv) |
510 | return 0; | |
fd3ef936 | 511 | |
0943b3b7 | 512 | restart = sd_radv_is_running(link->radv); |
c555a358 | 513 | |
0943b3b7 YW |
514 | r = sd_radv_stop(link->radv); |
515 | if (r < 0) | |
516 | return r; | |
fd3ef936 | 517 | |
0943b3b7 YW |
518 | r = sd_radv_set_mac(link->radv, &link->hw_addr.ether); |
519 | if (r < 0) | |
520 | return r; | |
c555a358 | 521 | |
0943b3b7 YW |
522 | if (restart) { |
523 | r = sd_radv_start(link->radv); | |
524 | if (r < 0) | |
525 | return r; | |
c555a358 PF |
526 | } |
527 | ||
0943b3b7 YW |
528 | return 0; |
529 | } | |
c555a358 | 530 | |
0943b3b7 YW |
531 | static int radv_is_ready_to_configure(Link *link) { |
532 | bool needs_uplink = false; | |
533 | int r; | |
c555a358 | 534 | |
0943b3b7 YW |
535 | assert(link); |
536 | assert(link->network); | |
349a981d | 537 | |
0943b3b7 YW |
538 | if (!IN_SET(link->state, LINK_STATE_CONFIGURING, LINK_STATE_CONFIGURED)) |
539 | return false; | |
c555a358 | 540 | |
0943b3b7 YW |
541 | if (in6_addr_is_null(&link->ipv6ll_address)) |
542 | return false; | |
c555a358 | 543 | |
0943b3b7 YW |
544 | if (link->network->router_emit_dns && !link->network->router_dns) { |
545 | _cleanup_free_ struct in6_addr *dns = NULL; | |
546 | size_t n_dns; | |
c555a358 | 547 | |
0943b3b7 YW |
548 | r = network_get_ipv6_dns(link->network, &dns, &n_dns); |
549 | if (r < 0) | |
550 | return r; | |
c555a358 | 551 | |
0943b3b7 YW |
552 | needs_uplink = r == 0; |
553 | } | |
c555a358 | 554 | |
0943b3b7 YW |
555 | if (link->network->router_emit_domains && |
556 | !link->network->router_search_domains && | |
557 | !link->network->search_domains) | |
558 | needs_uplink = true; | |
559 | ||
560 | if (needs_uplink) { | |
561 | Link *uplink = NULL; | |
c555a358 | 562 | |
0943b3b7 YW |
563 | if (radv_find_uplink(link, &uplink) < 0) |
564 | return false; | |
c555a358 | 565 | |
0943b3b7 YW |
566 | if (uplink && !uplink->network) |
567 | return false; | |
568 | } | |
c555a358 | 569 | |
0943b3b7 YW |
570 | return true; |
571 | } | |
c555a358 | 572 | |
0943b3b7 YW |
573 | int request_process_radv(Request *req) { |
574 | Link *link; | |
575 | int r; | |
349a981d | 576 | |
0943b3b7 YW |
577 | assert(req); |
578 | assert(req->link); | |
579 | assert(req->type == REQUEST_TYPE_RADV); | |
c555a358 | 580 | |
0943b3b7 | 581 | link = req->link; |
c555a358 | 582 | |
0943b3b7 YW |
583 | r = radv_is_ready_to_configure(link); |
584 | if (r <= 0) | |
585 | return r; | |
5e2a51d5 | 586 | |
0943b3b7 YW |
587 | r = radv_configure(link); |
588 | if (r < 0) | |
589 | return log_link_warning_errno(link, r, "Failed to configure IPv6 Router Advertisement engine: %m"); | |
c555a358 | 590 | |
0943b3b7 | 591 | if (link_has_carrier(link)) { |
0f96a823 | 592 | r = radv_start(link); |
0943b3b7 YW |
593 | if (r < 0) |
594 | return log_link_warning_errno(link, r, "Failed to start IPv6 Router Advertisement engine: %m"); | |
595 | } | |
596 | ||
597 | log_link_debug(link, "IPv6 Router Advertisement engine is configured%s.", | |
598 | link_has_carrier(link) ? " and started." : ""); | |
599 | return 1; | |
c555a358 PF |
600 | } |
601 | ||
0943b3b7 YW |
602 | int link_request_radv(Link *link) { |
603 | int r; | |
63295b42 | 604 | |
0943b3b7 | 605 | assert(link); |
63295b42 | 606 | |
0943b3b7 YW |
607 | if (!link_radv_enabled(link)) |
608 | return 0; | |
63295b42 | 609 | |
0943b3b7 | 610 | if (link->radv) |
63295b42 | 611 | return 0; |
63295b42 | 612 | |
0943b3b7 YW |
613 | r = link_queue_request(link, REQUEST_TYPE_RADV, NULL, false, NULL, NULL, NULL); |
614 | if (r < 0) | |
615 | return log_link_warning_errno(link, r, "Failed to request configuring of the IPv6 Router Advertisement engine: %m"); | |
616 | ||
617 | log_link_debug(link, "Requested configuring of the IPv6 Router Advertisement engine."); | |
63295b42 YW |
618 | return 0; |
619 | } | |
620 | ||
0f96a823 YW |
621 | int radv_start(Link *link) { |
622 | int r; | |
623 | ||
624 | assert(link); | |
625 | assert(link->network); | |
626 | ||
627 | if (!link->radv) | |
628 | return 0; | |
629 | ||
630 | if (!link_has_carrier(link)) | |
631 | return 0; | |
632 | ||
633 | if (in6_addr_is_null(&link->ipv6ll_address)) | |
634 | return 0; | |
635 | ||
636 | if (sd_radv_is_running(link->radv)) | |
637 | return 0; | |
638 | ||
639 | if (link->network->dhcp6_pd_announce) { | |
640 | r = dhcp6_request_prefix_delegation(link); | |
641 | if (r < 0) | |
642 | return log_link_debug_errno(link, r, "Failed to request DHCPv6 prefix delegation: %m"); | |
643 | } | |
644 | ||
645 | log_link_debug(link, "Starting IPv6 Router Advertisements"); | |
646 | return sd_radv_start(link->radv); | |
647 | } | |
648 | ||
0943b3b7 YW |
649 | int radv_add_prefix( |
650 | Link *link, | |
651 | const struct in6_addr *prefix, | |
652 | uint8_t prefix_len, | |
16bc8635 YW |
653 | usec_t lifetime_preferred_usec, |
654 | usec_t lifetime_valid_usec) { | |
0943b3b7 YW |
655 | |
656 | _cleanup_(sd_radv_prefix_unrefp) sd_radv_prefix *p = NULL; | |
95081e08 | 657 | int r; |
091214b6 PF |
658 | |
659 | assert(link); | |
091214b6 | 660 | |
0943b3b7 YW |
661 | if (!link->radv) |
662 | return 0; | |
bc9e40c9 | 663 | |
0943b3b7 | 664 | r = sd_radv_prefix_new(&p); |
091214b6 PF |
665 | if (r < 0) |
666 | return r; | |
667 | ||
0943b3b7 | 668 | r = sd_radv_prefix_set_prefix(p, prefix, prefix_len); |
091214b6 PF |
669 | if (r < 0) |
670 | return r; | |
671 | ||
c9e2c2da | 672 | r = sd_radv_prefix_set_preferred_lifetime(p, RADV_DEFAULT_PREFERRED_LIFETIME_USEC, lifetime_preferred_usec); |
091214b6 PF |
673 | if (r < 0) |
674 | return r; | |
675 | ||
c9e2c2da | 676 | r = sd_radv_prefix_set_valid_lifetime(p, RADV_DEFAULT_VALID_LIFETIME_USEC, lifetime_valid_usec); |
091214b6 PF |
677 | if (r < 0) |
678 | return r; | |
679 | ||
95e104e0 | 680 | r = sd_radv_add_prefix(link->radv, p); |
0943b3b7 | 681 | if (r < 0 && r != -EEXIST) |
091214b6 PF |
682 | return r; |
683 | ||
0943b3b7 YW |
684 | return 0; |
685 | } | |
091214b6 | 686 | |
2110040b YW |
687 | static int prefix_section_verify(Prefix *p) { |
688 | assert(p); | |
689 | ||
690 | if (section_is_invalid(p->section)) | |
691 | return -EINVAL; | |
692 | ||
693 | if (in6_addr_is_null(&p->prefix)) | |
694 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
695 | "%s: [IPv6Prefix] section without Prefix= field configured, " | |
696 | "or specified prefix is the null address. " | |
697 | "Ignoring [IPv6Prefix] section from line %u.", | |
698 | p->section->filename, p->section->line); | |
699 | ||
700 | if (p->prefixlen < 3 || p->prefixlen > 128) | |
701 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
702 | "%s: Invalid prefix length %u is specified in [IPv6Prefix] section. " | |
703 | "Valid range is 3…128. Ignoring [IPv6Prefix] section from line %u.", | |
704 | p->section->filename, p->prefixlen, p->section->line); | |
705 | ||
706 | if (p->prefixlen > 64) { | |
707 | _cleanup_free_ char *str = NULL; | |
708 | ||
709 | if (p->assign) | |
710 | (void) in6_addr_prefix_to_string(&p->prefix, p->prefixlen, &str); | |
711 | ||
712 | log_info("%s: Unusual prefix length %u (> 64) is specified in [IPv6Prefix] section from line %u%s%s.", | |
713 | p->section->filename, p->prefixlen, p->section->line, | |
714 | p->assign ? ", refusing to assign an address in " : "", | |
715 | p->assign ? strna(str) : ""); | |
716 | ||
717 | p->assign = false; | |
718 | } | |
719 | ||
720 | if (p->valid_lifetime == 0) | |
721 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
722 | "%s: The valid lifetime of prefix cannot be zero. " | |
723 | "Ignoring [IPv6Prefix] section from line %u.", | |
724 | p->section->filename, p->section->line); | |
725 | ||
726 | if (p->preferred_lifetime > p->valid_lifetime) | |
727 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
728 | "%s: The preferred lifetime %s is longer than the valid lifetime %s. " | |
729 | "Ignoring [IPv6Prefix] section from line %u.", | |
730 | p->section->filename, | |
731 | FORMAT_TIMESPAN(p->preferred_lifetime, USEC_PER_SEC), | |
732 | FORMAT_TIMESPAN(p->valid_lifetime, USEC_PER_SEC), | |
733 | p->section->line); | |
734 | ||
735 | return 0; | |
736 | } | |
737 | ||
0943b3b7 | 738 | void network_drop_invalid_prefixes(Network *network) { |
2110040b | 739 | Prefix *p; |
2075e596 | 740 | |
0943b3b7 YW |
741 | assert(network); |
742 | ||
2110040b YW |
743 | HASHMAP_FOREACH(p, network->prefixes_by_section) |
744 | if (prefix_section_verify(p) < 0) | |
745 | prefix_free(p); | |
746 | } | |
747 | ||
748 | static int route_prefix_section_verify(RoutePrefix *p) { | |
749 | if (section_is_invalid(p->section)) | |
750 | return -EINVAL; | |
751 | ||
752 | if (p->prefixlen > 128) | |
753 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
754 | "%s: Invalid prefix length %u is specified in [IPv6RoutePrefix] section. " | |
755 | "Valid range is 0…128. Ignoring [IPv6RoutePrefix] section from line %u.", | |
756 | p->section->filename, p->prefixlen, p->section->line); | |
757 | ||
758 | if (p->lifetime == 0) | |
759 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
760 | "%s: The lifetime of route cannot be zero. " | |
761 | "Ignoring [IPv6RoutePrefix] section from line %u.", | |
762 | p->section->filename, p->section->line); | |
763 | ||
764 | return 0; | |
0943b3b7 YW |
765 | } |
766 | ||
767 | void network_drop_invalid_route_prefixes(Network *network) { | |
2110040b | 768 | RoutePrefix *p; |
0943b3b7 YW |
769 | |
770 | assert(network); | |
771 | ||
2110040b YW |
772 | HASHMAP_FOREACH(p, network->route_prefixes_by_section) |
773 | if (route_prefix_section_verify(p) < 0) | |
774 | route_prefix_free(p); | |
0943b3b7 YW |
775 | } |
776 | ||
777 | int config_parse_prefix( | |
778 | const char *unit, | |
779 | const char *filename, | |
780 | unsigned line, | |
781 | const char *section, | |
782 | unsigned section_line, | |
783 | const char *lvalue, | |
784 | int ltype, | |
785 | const char *rvalue, | |
786 | void *data, | |
787 | void *userdata) { | |
788 | ||
0943b3b7 | 789 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 YW |
790 | Network *network = userdata; |
791 | union in_addr_union a; | |
0943b3b7 YW |
792 | int r; |
793 | ||
794 | assert(filename); | |
795 | assert(section); | |
796 | assert(lvalue); | |
797 | assert(rvalue); | |
2ac41679 | 798 | assert(userdata); |
0943b3b7 YW |
799 | |
800 | r = prefix_new_static(network, filename, section_line, &p); | |
091214b6 | 801 | if (r < 0) |
0943b3b7 | 802 | return log_oom(); |
091214b6 | 803 | |
2ac41679 | 804 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &a, &p->prefixlen); |
0943b3b7 | 805 | if (r < 0) { |
2ac41679 YW |
806 | log_syntax(unit, LOG_WARNING, filename, line, r, |
807 | "Prefix is invalid, ignoring assignment: %s", rvalue); | |
0943b3b7 | 808 | return 0; |
8a08bbfc | 809 | } |
cf72568a YW |
810 | |
811 | (void) in6_addr_mask(&a.in6, p->prefixlen); | |
2ac41679 | 812 | p->prefix = a.in6; |
203d4df5 | 813 | |
2ac41679 | 814 | TAKE_PTR(p); |
0943b3b7 YW |
815 | return 0; |
816 | } | |
a254fab2 | 817 | |
2ac41679 | 818 | int config_parse_prefix_boolean( |
0943b3b7 YW |
819 | const char *unit, |
820 | const char *filename, | |
821 | unsigned line, | |
822 | const char *section, | |
823 | unsigned section_line, | |
824 | const char *lvalue, | |
825 | int ltype, | |
826 | const char *rvalue, | |
827 | void *data, | |
828 | void *userdata) { | |
a254fab2 | 829 | |
0943b3b7 | 830 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 | 831 | Network *network = userdata; |
0943b3b7 YW |
832 | int r; |
833 | ||
834 | assert(filename); | |
835 | assert(section); | |
836 | assert(lvalue); | |
837 | assert(rvalue); | |
2ac41679 | 838 | assert(userdata); |
0943b3b7 YW |
839 | |
840 | r = prefix_new_static(network, filename, section_line, &p); | |
a254fab2 | 841 | if (r < 0) |
0943b3b7 YW |
842 | return log_oom(); |
843 | ||
844 | r = parse_boolean(rvalue); | |
845 | if (r < 0) { | |
2ac41679 YW |
846 | log_syntax(unit, LOG_WARNING, filename, line, r, |
847 | "Failed to parse %s=, ignoring assignment: %s", lvalue, rvalue); | |
0943b3b7 YW |
848 | return 0; |
849 | } | |
850 | ||
851 | if (streq(lvalue, "OnLink")) | |
2ac41679 | 852 | p->onlink = r; |
0943b3b7 | 853 | else if (streq(lvalue, "AddressAutoconfiguration")) |
2ac41679 YW |
854 | p->address_auto_configuration = r; |
855 | else if (streq(lvalue, "Assign")) | |
856 | p->assign = r; | |
857 | else | |
858 | assert_not_reached(); | |
a254fab2 | 859 | |
2ac41679 | 860 | TAKE_PTR(p); |
fd3ef936 | 861 | return 0; |
091214b6 | 862 | } |
ca5ad760 | 863 | |
0943b3b7 YW |
864 | int config_parse_prefix_lifetime( |
865 | const char *unit, | |
866 | const char *filename, | |
867 | unsigned line, | |
868 | const char *section, | |
869 | unsigned section_line, | |
870 | const char *lvalue, | |
871 | int ltype, | |
872 | const char *rvalue, | |
873 | void *data, | |
874 | void *userdata) { | |
875 | ||
0943b3b7 | 876 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 | 877 | Network *network = userdata; |
0943b3b7 | 878 | usec_t usec; |
be9363cc YW |
879 | int r; |
880 | ||
0943b3b7 YW |
881 | assert(filename); |
882 | assert(section); | |
883 | assert(lvalue); | |
884 | assert(rvalue); | |
2ac41679 | 885 | assert(userdata); |
be9363cc | 886 | |
0943b3b7 | 887 | r = prefix_new_static(network, filename, section_line, &p); |
a391901e | 888 | if (r < 0) |
0943b3b7 | 889 | return log_oom(); |
be9363cc | 890 | |
0943b3b7 YW |
891 | r = parse_sec(rvalue, &usec); |
892 | if (r < 0) { | |
2ac41679 YW |
893 | log_syntax(unit, LOG_WARNING, filename, line, r, |
894 | "Lifetime is invalid, ignoring assignment: %s", rvalue); | |
0943b3b7 YW |
895 | return 0; |
896 | } | |
be9363cc | 897 | |
2ac41679 YW |
898 | if (usec != USEC_INFINITY && DIV_ROUND_UP(usec, USEC_PER_SEC) >= UINT32_MAX) { |
899 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
900 | "Lifetime is too long, ignoring assignment: %s", rvalue); | |
0943b3b7 | 901 | return 0; |
be9363cc YW |
902 | } |
903 | ||
2ac41679 YW |
904 | if (streq(lvalue, "PreferredLifetimeSec")) |
905 | p->preferred_lifetime = usec; | |
906 | else if (streq(lvalue, "ValidLifetimeSec")) | |
907 | p->valid_lifetime = usec; | |
908 | else | |
909 | assert_not_reached(); | |
63295b42 | 910 | |
2ac41679 | 911 | TAKE_PTR(p); |
0943b3b7 | 912 | return 0; |
a254fab2 YW |
913 | } |
914 | ||
0943b3b7 YW |
915 | int config_parse_prefix_metric( |
916 | const char *unit, | |
917 | const char *filename, | |
918 | unsigned line, | |
919 | const char *section, | |
920 | unsigned section_line, | |
921 | const char *lvalue, | |
922 | int ltype, | |
923 | const char *rvalue, | |
924 | void *data, | |
925 | void *userdata) { | |
a254fab2 | 926 | |
0943b3b7 | 927 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 | 928 | Network *network = userdata; |
0943b3b7 | 929 | int r; |
a254fab2 | 930 | |
0943b3b7 YW |
931 | assert(filename); |
932 | assert(section); | |
933 | assert(lvalue); | |
934 | assert(rvalue); | |
2ac41679 | 935 | assert(userdata); |
a254fab2 | 936 | |
0943b3b7 | 937 | r = prefix_new_static(network, filename, section_line, &p); |
a254fab2 | 938 | if (r < 0) |
0943b3b7 | 939 | return log_oom(); |
a254fab2 | 940 | |
0943b3b7 YW |
941 | r = safe_atou32(rvalue, &p->route_metric); |
942 | if (r < 0) { | |
943 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
944 | "Failed to parse %s=, ignoring assignment: %s", | |
945 | lvalue, rvalue); | |
946 | return 0; | |
a254fab2 YW |
947 | } |
948 | ||
0943b3b7 | 949 | TAKE_PTR(p); |
0943b3b7 | 950 | return 0; |
a254fab2 YW |
951 | } |
952 | ||
e609cd06 YW |
953 | int config_parse_prefix_token( |
954 | const char *unit, | |
955 | const char *filename, | |
956 | unsigned line, | |
957 | const char *section, | |
958 | unsigned section_line, | |
959 | const char *lvalue, | |
960 | int ltype, | |
961 | const char *rvalue, | |
962 | void *data, | |
963 | void *userdata) { | |
964 | ||
965 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; | |
966 | Network *network = userdata; | |
967 | int r; | |
968 | ||
969 | assert(filename); | |
970 | assert(section); | |
971 | assert(lvalue); | |
972 | assert(rvalue); | |
973 | assert(userdata); | |
974 | ||
975 | r = prefix_new_static(network, filename, section_line, &p); | |
976 | if (r < 0) | |
977 | return log_oom(); | |
978 | ||
979 | r = config_parse_address_generation_type(unit, filename, line, section, section_line, | |
980 | lvalue, ltype, rvalue, &p->tokens, userdata); | |
981 | if (r < 0) | |
982 | return r; | |
983 | ||
984 | TAKE_PTR(p); | |
985 | return 0; | |
986 | } | |
987 | ||
0943b3b7 YW |
988 | int config_parse_route_prefix( |
989 | const char *unit, | |
990 | const char *filename, | |
991 | unsigned line, | |
992 | const char *section, | |
993 | unsigned section_line, | |
994 | const char *lvalue, | |
995 | int ltype, | |
996 | const char *rvalue, | |
997 | void *data, | |
998 | void *userdata) { | |
999 | ||
0943b3b7 | 1000 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; |
2ac41679 YW |
1001 | Network *network = userdata; |
1002 | union in_addr_union a; | |
a254fab2 YW |
1003 | int r; |
1004 | ||
0943b3b7 YW |
1005 | assert(filename); |
1006 | assert(section); | |
1007 | assert(lvalue); | |
1008 | assert(rvalue); | |
2ac41679 | 1009 | assert(userdata); |
a254fab2 | 1010 | |
0943b3b7 YW |
1011 | r = route_prefix_new_static(network, filename, section_line, &p); |
1012 | if (r < 0) | |
1013 | return log_oom(); | |
1014 | ||
2ac41679 | 1015 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &a, &p->prefixlen); |
0943b3b7 | 1016 | if (r < 0) { |
2ac41679 YW |
1017 | log_syntax(unit, LOG_WARNING, filename, line, r, |
1018 | "Route prefix is invalid, ignoring assignment: %s", rvalue); | |
a254fab2 | 1019 | return 0; |
0943b3b7 | 1020 | } |
cf72568a YW |
1021 | |
1022 | (void) in6_addr_mask(&a.in6, p->prefixlen); | |
2ac41679 | 1023 | p->prefix = a.in6; |
a254fab2 | 1024 | |
2ac41679 | 1025 | TAKE_PTR(p); |
a254fab2 YW |
1026 | return 0; |
1027 | } | |
1028 | ||
0943b3b7 YW |
1029 | int config_parse_route_prefix_lifetime( |
1030 | const char *unit, | |
1031 | const char *filename, | |
1032 | unsigned line, | |
1033 | const char *section, | |
1034 | unsigned section_line, | |
1035 | const char *lvalue, | |
1036 | int ltype, | |
1037 | const char *rvalue, | |
1038 | void *data, | |
1039 | void *userdata) { | |
a8d4a210 | 1040 | |
0943b3b7 | 1041 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; |
2ac41679 | 1042 | Network *network = userdata; |
0943b3b7 | 1043 | usec_t usec; |
1d596fde YW |
1044 | int r; |
1045 | ||
0943b3b7 YW |
1046 | assert(filename); |
1047 | assert(section); | |
1048 | assert(lvalue); | |
1049 | assert(rvalue); | |
2ac41679 | 1050 | assert(userdata); |
1d596fde | 1051 | |
0943b3b7 | 1052 | r = route_prefix_new_static(network, filename, section_line, &p); |
1d596fde | 1053 | if (r < 0) |
0943b3b7 | 1054 | return log_oom(); |
1d596fde | 1055 | |
0943b3b7 YW |
1056 | r = parse_sec(rvalue, &usec); |
1057 | if (r < 0) { | |
1058 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1059 | "Route lifetime is invalid, ignoring assignment: %s", rvalue); | |
1060 | return 0; | |
1061 | } | |
1d596fde | 1062 | |
2ac41679 YW |
1063 | if (usec != USEC_INFINITY && DIV_ROUND_UP(usec, USEC_PER_SEC) >= UINT32_MAX) { |
1064 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1065 | "Lifetime is too long, ignoring assignment: %s", rvalue); | |
0943b3b7 YW |
1066 | return 0; |
1067 | } | |
1d596fde | 1068 | |
2ac41679 | 1069 | p->lifetime = usec; |
1d596fde | 1070 | |
2ac41679 | 1071 | TAKE_PTR(p); |
1d596fde YW |
1072 | return 0; |
1073 | } | |
1074 | ||
ca5ad760 YW |
1075 | int config_parse_radv_dns( |
1076 | const char *unit, | |
1077 | const char *filename, | |
1078 | unsigned line, | |
1079 | const char *section, | |
1080 | unsigned section_line, | |
1081 | const char *lvalue, | |
1082 | int ltype, | |
1083 | const char *rvalue, | |
1084 | void *data, | |
1085 | void *userdata) { | |
1086 | ||
1087 | Network *n = data; | |
ca5ad760 YW |
1088 | int r; |
1089 | ||
1090 | assert(filename); | |
1091 | assert(lvalue); | |
1092 | assert(rvalue); | |
1093 | ||
a3c1a949 YW |
1094 | if (isempty(rvalue)) { |
1095 | n->n_router_dns = 0; | |
1096 | n->router_dns = mfree(n->router_dns); | |
1097 | return 0; | |
1098 | } | |
1099 | ||
d96edb2c | 1100 | for (const char *p = rvalue;;) { |
ca5ad760 YW |
1101 | _cleanup_free_ char *w = NULL; |
1102 | union in_addr_union a; | |
1103 | ||
1104 | r = extract_first_word(&p, &w, NULL, 0); | |
1105 | if (r == -ENOMEM) | |
1106 | return log_oom(); | |
1107 | if (r < 0) { | |
d96edb2c | 1108 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1109 | "Failed to extract word, ignoring: %s", rvalue); |
1110 | return 0; | |
1111 | } | |
1112 | if (r == 0) | |
d96edb2c | 1113 | return 0; |
ca5ad760 | 1114 | |
fd3ef936 YW |
1115 | if (streq(w, "_link_local")) |
1116 | a = IN_ADDR_NULL; | |
1117 | else { | |
1118 | r = in_addr_from_string(AF_INET6, w, &a); | |
1119 | if (r < 0) { | |
d96edb2c | 1120 | log_syntax(unit, LOG_WARNING, filename, line, r, |
fd3ef936 YW |
1121 | "Failed to parse DNS server address, ignoring: %s", w); |
1122 | continue; | |
1123 | } | |
ca5ad760 | 1124 | |
fd3ef936 | 1125 | if (in_addr_is_null(AF_INET6, &a)) { |
d96edb2c | 1126 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
fd3ef936 YW |
1127 | "DNS server address is null, ignoring: %s", w); |
1128 | continue; | |
1129 | } | |
1130 | } | |
ca5ad760 | 1131 | |
fd3ef936 YW |
1132 | struct in6_addr *m; |
1133 | m = reallocarray(n->router_dns, n->n_router_dns + 1, sizeof(struct in6_addr)); | |
1134 | if (!m) | |
1135 | return log_oom(); | |
ca5ad760 | 1136 | |
fd3ef936 YW |
1137 | m[n->n_router_dns++] = a.in6; |
1138 | n->router_dns = m; | |
ca5ad760 | 1139 | } |
ca5ad760 YW |
1140 | } |
1141 | ||
1142 | int config_parse_radv_search_domains( | |
1143 | const char *unit, | |
1144 | const char *filename, | |
1145 | unsigned line, | |
1146 | const char *section, | |
1147 | unsigned section_line, | |
1148 | const char *lvalue, | |
1149 | int ltype, | |
1150 | const char *rvalue, | |
1151 | void *data, | |
1152 | void *userdata) { | |
1153 | ||
1154 | Network *n = data; | |
ca5ad760 YW |
1155 | int r; |
1156 | ||
1157 | assert(filename); | |
1158 | assert(lvalue); | |
1159 | assert(rvalue); | |
1160 | ||
a3c1a949 YW |
1161 | if (isempty(rvalue)) { |
1162 | n->router_search_domains = ordered_set_free(n->router_search_domains); | |
1163 | return 0; | |
1164 | } | |
1165 | ||
d96edb2c | 1166 | for (const char *p = rvalue;;) { |
ca5ad760 YW |
1167 | _cleanup_free_ char *w = NULL, *idna = NULL; |
1168 | ||
1169 | r = extract_first_word(&p, &w, NULL, 0); | |
1170 | if (r == -ENOMEM) | |
1171 | return log_oom(); | |
1172 | if (r < 0) { | |
d96edb2c | 1173 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1174 | "Failed to extract word, ignoring: %s", rvalue); |
1175 | return 0; | |
1176 | } | |
1177 | if (r == 0) | |
d96edb2c | 1178 | return 0; |
ca5ad760 YW |
1179 | |
1180 | r = dns_name_apply_idna(w, &idna); | |
1181 | if (r < 0) { | |
d96edb2c | 1182 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1183 | "Failed to apply IDNA to domain name '%s', ignoring: %m", w); |
1184 | continue; | |
1185 | } else if (r == 0) | |
1186 | /* transfer ownership to simplify subsequent operations */ | |
1187 | idna = TAKE_PTR(w); | |
1188 | ||
5e276772 | 1189 | r = ordered_set_ensure_allocated(&n->router_search_domains, &string_hash_ops_free); |
ca5ad760 | 1190 | if (r < 0) |
d96edb2c | 1191 | return log_oom(); |
ca5ad760 YW |
1192 | |
1193 | r = ordered_set_consume(n->router_search_domains, TAKE_PTR(idna)); | |
1194 | if (r < 0) | |
d96edb2c | 1195 | return log_oom(); |
ca5ad760 | 1196 | } |
ca5ad760 YW |
1197 | } |
1198 | ||
1199 | static const char * const radv_prefix_delegation_table[_RADV_PREFIX_DELEGATION_MAX] = { | |
a8d4a210 | 1200 | [RADV_PREFIX_DELEGATION_NONE] = "no", |
ca5ad760 | 1201 | [RADV_PREFIX_DELEGATION_STATIC] = "static", |
a8d4a210 YW |
1202 | [RADV_PREFIX_DELEGATION_DHCP6] = "dhcpv6", |
1203 | [RADV_PREFIX_DELEGATION_BOTH] = "yes", | |
ca5ad760 YW |
1204 | }; |
1205 | ||
1206 | DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN( | |
1207 | radv_prefix_delegation, | |
1208 | RADVPrefixDelegation, | |
1209 | RADV_PREFIX_DELEGATION_BOTH); | |
1210 | ||
27ff0490 YW |
1211 | int config_parse_router_prefix_delegation( |
1212 | const char *unit, | |
1213 | const char *filename, | |
1214 | unsigned line, | |
1215 | const char *section, | |
1216 | unsigned section_line, | |
1217 | const char *lvalue, | |
1218 | int ltype, | |
1219 | const char *rvalue, | |
1220 | void *data, | |
1221 | void *userdata) { | |
1222 | ||
1223 | RADVPrefixDelegation val, *ra = data; | |
1224 | int r; | |
1225 | ||
1226 | assert(filename); | |
1227 | assert(lvalue); | |
1228 | assert(rvalue); | |
1229 | assert(data); | |
1230 | ||
1231 | if (streq(lvalue, "IPv6SendRA")) { | |
1232 | r = parse_boolean(rvalue); | |
1233 | if (r < 0) { | |
1234 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1235 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); | |
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | /* When IPv6SendRA= is enabled, only static prefixes are sent by default, and users | |
1240 | * need to explicitly enable DHCPv6PrefixDelegation=. */ | |
1241 | *ra = r ? RADV_PREFIX_DELEGATION_STATIC : RADV_PREFIX_DELEGATION_NONE; | |
1242 | return 0; | |
1243 | } | |
1244 | ||
1245 | /* For backward compatibility */ | |
1246 | val = radv_prefix_delegation_from_string(rvalue); | |
1247 | if (val < 0) { | |
b98680b2 | 1248 | log_syntax(unit, LOG_WARNING, filename, line, val, |
27ff0490 YW |
1249 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); |
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | *ra = val; | |
1254 | return 0; | |
1255 | } | |
a8d4a210 | 1256 | |
4f1ac4a3 YW |
1257 | int config_parse_router_lifetime( |
1258 | const char *unit, | |
1259 | const char *filename, | |
1260 | unsigned line, | |
1261 | const char *section, | |
1262 | unsigned section_line, | |
1263 | const char *lvalue, | |
1264 | int ltype, | |
1265 | const char *rvalue, | |
1266 | void *data, | |
1267 | void *userdata) { | |
1268 | ||
1269 | usec_t usec, *lifetime = data; | |
1270 | int r; | |
1271 | ||
1272 | assert(filename); | |
1273 | assert(section); | |
1274 | assert(lvalue); | |
1275 | assert(rvalue); | |
1276 | assert(data); | |
1277 | ||
1278 | if (isempty(rvalue)) { | |
1279 | *lifetime = RADV_DEFAULT_ROUTER_LIFETIME_USEC; | |
1280 | return 0; | |
1281 | } | |
1282 | ||
1283 | r = parse_sec(rvalue, &usec); | |
1284 | if (r < 0) { | |
1285 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1286 | "Failed to parse router lifetime, ignoring assignment: %s", rvalue); | |
1287 | return 0; | |
1288 | } | |
1289 | if (usec > 0) { | |
1290 | if (usec < RADV_MIN_ROUTER_LIFETIME_USEC) { | |
1291 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1292 | "Router lifetime %s is too short, using %s.", | |
1293 | FORMAT_TIMESPAN(usec, USEC_PER_SEC), | |
1294 | FORMAT_TIMESPAN(RADV_MIN_ROUTER_LIFETIME_USEC, USEC_PER_SEC)); | |
1295 | usec = RADV_MIN_ROUTER_LIFETIME_USEC; | |
1296 | } else if (usec > RADV_MAX_ROUTER_LIFETIME_USEC) { | |
1297 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1298 | "Router lifetime %s is too large, using %s.", | |
1299 | FORMAT_TIMESPAN(usec, USEC_PER_SEC), | |
1300 | FORMAT_TIMESPAN(RADV_MAX_ROUTER_LIFETIME_USEC, USEC_PER_SEC)); | |
1301 | usec = RADV_MAX_ROUTER_LIFETIME_USEC; | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | *lifetime = usec; | |
1306 | return 0; | |
1307 | } | |
1308 | ||
a8d4a210 YW |
1309 | int config_parse_router_preference( |
1310 | const char *unit, | |
1311 | const char *filename, | |
1312 | unsigned line, | |
1313 | const char *section, | |
1314 | unsigned section_line, | |
1315 | const char *lvalue, | |
1316 | int ltype, | |
1317 | const char *rvalue, | |
1318 | void *data, | |
1319 | void *userdata) { | |
1320 | ||
ca5ad760 YW |
1321 | Network *network = userdata; |
1322 | ||
1323 | assert(filename); | |
1324 | assert(section); | |
1325 | assert(lvalue); | |
1326 | assert(rvalue); | |
1327 | assert(data); | |
1328 | ||
1329 | if (streq(rvalue, "high")) | |
1330 | network->router_preference = SD_NDISC_PREFERENCE_HIGH; | |
1331 | else if (STR_IN_SET(rvalue, "medium", "normal", "default")) | |
1332 | network->router_preference = SD_NDISC_PREFERENCE_MEDIUM; | |
1333 | else if (streq(rvalue, "low")) | |
1334 | network->router_preference = SD_NDISC_PREFERENCE_LOW; | |
1335 | else | |
d96edb2c YW |
1336 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1337 | "Invalid router preference, ignoring assignment: %s", rvalue); | |
ca5ad760 YW |
1338 | |
1339 | return 0; | |
1340 | } |