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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" |
d5ebcf65 | 12 | #include "networkd-dhcp-prefix-delegation.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" |
344b3cff | 18 | #include "networkd-route-util.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 | ||
a27588d4 | 30 | if (network->dhcp_pd < 0) |
0943b3b7 | 31 | /* For backward compatibility. */ |
a27588d4 | 32 | network->dhcp_pd = FLAGS_SET(network->router_prefix_delegation, RADV_PREFIX_DELEGATION_DHCP6); |
0943b3b7 YW |
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 | ||
e096cab2 | 57 | if (!link_may_have_ipv6ll(link)) |
0943b3b7 YW |
58 | return false; |
59 | ||
218a8502 YW |
60 | if (link->hw_addr.length != ETH_ALEN) |
61 | return false; | |
62 | ||
0943b3b7 YW |
63 | return link->network->router_prefix_delegation; |
64 | } | |
65 | ||
064dfb05 | 66 | Prefix *prefix_free(Prefix *prefix) { |
6e849e95 | 67 | if (!prefix) |
064dfb05 | 68 | return NULL; |
6e849e95 PF |
69 | |
70 | if (prefix->network) { | |
ecb0e85e YW |
71 | assert(prefix->section); |
72 | hashmap_remove(prefix->network->prefixes_by_section, prefix->section); | |
6e849e95 PF |
73 | } |
74 | ||
307fe3cd | 75 | config_section_free(prefix->section); |
e609cd06 | 76 | set_free(prefix->tokens); |
6e849e95 | 77 | |
064dfb05 | 78 | return mfree(prefix); |
6e849e95 PF |
79 | } |
80 | ||
307fe3cd | 81 | DEFINE_SECTION_CLEANUP_FUNCTIONS(Prefix, prefix_free); |
064dfb05 | 82 | |
a8d4a210 | 83 | static int prefix_new_static(Network *network, const char *filename, unsigned section_line, Prefix **ret) { |
307fe3cd | 84 | _cleanup_(config_section_freep) ConfigSection *n = NULL; |
8e766630 | 85 | _cleanup_(prefix_freep) Prefix *prefix = NULL; |
6e849e95 PF |
86 | int r; |
87 | ||
88 | assert(network); | |
89 | assert(ret); | |
ecb0e85e YW |
90 | assert(filename); |
91 | assert(section_line > 0); | |
6e849e95 | 92 | |
307fe3cd | 93 | r = config_section_new(filename, section_line, &n); |
ecb0e85e YW |
94 | if (r < 0) |
95 | return r; | |
6e849e95 | 96 | |
ecb0e85e YW |
97 | prefix = hashmap_get(network->prefixes_by_section, n); |
98 | if (prefix) { | |
99 | *ret = TAKE_PTR(prefix); | |
100 | return 0; | |
6e849e95 PF |
101 | } |
102 | ||
2ac41679 YW |
103 | prefix = new(Prefix, 1); |
104 | if (!prefix) | |
105 | return -ENOMEM; | |
106 | ||
107 | *prefix = (Prefix) { | |
108 | .network = network, | |
109 | .section = TAKE_PTR(n), | |
6e849e95 | 110 | |
c9e2c2da YW |
111 | .preferred_lifetime = RADV_DEFAULT_PREFERRED_LIFETIME_USEC, |
112 | .valid_lifetime = RADV_DEFAULT_VALID_LIFETIME_USEC, | |
2ac41679 YW |
113 | .onlink = true, |
114 | .address_auto_configuration = true, | |
115 | }; | |
6e849e95 | 116 | |
307fe3cd | 117 | r = hashmap_ensure_put(&network->prefixes_by_section, &config_section_hash_ops, prefix->section, prefix); |
ecb0e85e YW |
118 | if (r < 0) |
119 | return r; | |
6e849e95 | 120 | |
1cc6c93a | 121 | *ret = TAKE_PTR(prefix); |
6e849e95 PF |
122 | return 0; |
123 | } | |
124 | ||
064dfb05 | 125 | RoutePrefix *route_prefix_free(RoutePrefix *prefix) { |
203d4df5 | 126 | if (!prefix) |
064dfb05 | 127 | return NULL; |
203d4df5 SS |
128 | |
129 | if (prefix->network) { | |
ecb0e85e YW |
130 | assert(prefix->section); |
131 | hashmap_remove(prefix->network->route_prefixes_by_section, prefix->section); | |
203d4df5 SS |
132 | } |
133 | ||
307fe3cd | 134 | config_section_free(prefix->section); |
203d4df5 | 135 | |
064dfb05 YW |
136 | return mfree(prefix); |
137 | } | |
138 | ||
307fe3cd | 139 | DEFINE_SECTION_CLEANUP_FUNCTIONS(RoutePrefix, route_prefix_free); |
064dfb05 | 140 | |
a8d4a210 | 141 | static int route_prefix_new_static(Network *network, const char *filename, unsigned section_line, RoutePrefix **ret) { |
307fe3cd | 142 | _cleanup_(config_section_freep) ConfigSection *n = NULL; |
95081e08 | 143 | _cleanup_(route_prefix_freep) RoutePrefix *prefix = NULL; |
203d4df5 SS |
144 | int r; |
145 | ||
146 | assert(network); | |
147 | assert(ret); | |
ecb0e85e YW |
148 | assert(filename); |
149 | assert(section_line > 0); | |
203d4df5 | 150 | |
307fe3cd | 151 | r = config_section_new(filename, section_line, &n); |
ecb0e85e YW |
152 | if (r < 0) |
153 | return r; | |
203d4df5 | 154 | |
ecb0e85e YW |
155 | prefix = hashmap_get(network->route_prefixes_by_section, n); |
156 | if (prefix) { | |
157 | *ret = TAKE_PTR(prefix); | |
158 | return 0; | |
203d4df5 SS |
159 | } |
160 | ||
2ac41679 YW |
161 | prefix = new(RoutePrefix, 1); |
162 | if (!prefix) | |
163 | return -ENOMEM; | |
203d4df5 | 164 | |
2ac41679 YW |
165 | *prefix = (RoutePrefix) { |
166 | .network = network, | |
167 | .section = TAKE_PTR(n), | |
168 | ||
c9e2c2da | 169 | .lifetime = RADV_DEFAULT_VALID_LIFETIME_USEC, |
2ac41679 | 170 | }; |
203d4df5 | 171 | |
307fe3cd | 172 | r = hashmap_ensure_put(&network->route_prefixes_by_section, &config_section_hash_ops, prefix->section, prefix); |
ecb0e85e YW |
173 | if (r < 0) |
174 | return r; | |
203d4df5 SS |
175 | |
176 | *ret = TAKE_PTR(prefix); | |
203d4df5 SS |
177 | return 0; |
178 | } | |
179 | ||
3b6a3bde YW |
180 | int link_request_radv_addresses(Link *link) { |
181 | Prefix *p; | |
182 | int r; | |
183 | ||
184 | assert(link); | |
185 | ||
186 | if (!link_radv_enabled(link)) | |
187 | return 0; | |
188 | ||
189 | HASHMAP_FOREACH(p, link->network->prefixes_by_section) { | |
e609cd06 | 190 | _cleanup_set_free_ Set *addresses = NULL; |
2ac41679 | 191 | struct in6_addr *a; |
3b6a3bde YW |
192 | |
193 | if (!p->assign) | |
194 | continue; | |
195 | ||
e609cd06 | 196 | /* radv_generate_addresses() below requires the prefix length <= 64. */ |
2110040b | 197 | if (p->prefixlen > 64) |
fcd7ad52 | 198 | continue; |
fcd7ad52 | 199 | |
2ac41679 | 200 | r = radv_generate_addresses(link, p->tokens, &p->prefix, p->prefixlen, &addresses); |
3b6a3bde | 201 | if (r < 0) |
e609cd06 | 202 | return r; |
00f1261d | 203 | |
e609cd06 YW |
204 | SET_FOREACH(a, addresses) { |
205 | _cleanup_(address_freep) Address *address = NULL; | |
3b6a3bde | 206 | |
e609cd06 YW |
207 | r = address_new(&address); |
208 | if (r < 0) | |
209 | return -ENOMEM; | |
3b6a3bde | 210 | |
e609cd06 YW |
211 | address->source = NETWORK_CONFIG_SOURCE_STATIC; |
212 | address->family = AF_INET6; | |
213 | address->in_addr.in6 = *a; | |
2ac41679 | 214 | address->prefixlen = p->prefixlen; |
e609cd06 YW |
215 | address->route_metric = p->route_metric; |
216 | ||
217 | r = link_request_static_address(link, TAKE_PTR(address), true); | |
218 | if (r < 0) | |
219 | return r; | |
220 | } | |
3b6a3bde YW |
221 | } |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
2ac41679 YW |
226 | static uint32_t usec_to_lifetime(usec_t usec) { |
227 | uint64_t t; | |
228 | ||
229 | if (usec == USEC_INFINITY) | |
230 | return UINT32_MAX; | |
231 | ||
232 | t = DIV_ROUND_UP(usec, USEC_PER_SEC); | |
233 | if (t >= UINT32_MAX) | |
234 | return UINT32_MAX; | |
235 | ||
236 | return (uint32_t) t; | |
237 | } | |
238 | ||
239 | static int radv_set_prefix(Link *link, Prefix *prefix) { | |
240 | _cleanup_(sd_radv_prefix_unrefp) sd_radv_prefix *p = NULL; | |
241 | int r; | |
242 | ||
243 | assert(link); | |
244 | assert(link->radv); | |
245 | assert(prefix); | |
246 | ||
247 | r = sd_radv_prefix_new(&p); | |
248 | if (r < 0) | |
249 | return r; | |
250 | ||
251 | r = sd_radv_prefix_set_prefix(p, &prefix->prefix, prefix->prefixlen); | |
252 | if (r < 0) | |
253 | return r; | |
254 | ||
95e104e0 | 255 | r = sd_radv_prefix_set_preferred_lifetime(p, prefix->preferred_lifetime, USEC_INFINITY); |
2ac41679 YW |
256 | if (r < 0) |
257 | return r; | |
258 | ||
95e104e0 | 259 | r = sd_radv_prefix_set_valid_lifetime(p, prefix->valid_lifetime, USEC_INFINITY); |
2ac41679 YW |
260 | if (r < 0) |
261 | return r; | |
262 | ||
263 | r = sd_radv_prefix_set_onlink(p, prefix->onlink); | |
264 | if (r < 0) | |
265 | return r; | |
266 | ||
267 | r = sd_radv_prefix_set_address_autoconfiguration(p, prefix->address_auto_configuration); | |
268 | if (r < 0) | |
269 | return r; | |
270 | ||
95e104e0 | 271 | return sd_radv_add_prefix(link->radv, p); |
2ac41679 YW |
272 | } |
273 | ||
274 | static int radv_set_route_prefix(Link *link, RoutePrefix *prefix) { | |
275 | _cleanup_(sd_radv_route_prefix_unrefp) sd_radv_route_prefix *p = NULL; | |
276 | int r; | |
277 | ||
278 | assert(link); | |
279 | assert(link->radv); | |
280 | assert(prefix); | |
281 | ||
282 | r = sd_radv_route_prefix_new(&p); | |
283 | if (r < 0) | |
284 | return r; | |
285 | ||
286 | r = sd_radv_route_prefix_set_prefix(p, &prefix->prefix, prefix->prefixlen); | |
287 | if (r < 0) | |
288 | return r; | |
289 | ||
95e104e0 | 290 | r = sd_radv_route_prefix_set_lifetime(p, prefix->lifetime, USEC_INFINITY); |
2ac41679 YW |
291 | if (r < 0) |
292 | return r; | |
293 | ||
95e104e0 | 294 | return sd_radv_add_route_prefix(link->radv, p); |
2ac41679 YW |
295 | } |
296 | ||
0943b3b7 YW |
297 | static int network_get_ipv6_dns(Network *network, struct in6_addr **ret_addresses, size_t *ret_size) { |
298 | _cleanup_free_ struct in6_addr *addresses = NULL; | |
299 | size_t n_addresses = 0; | |
6e849e95 | 300 | |
0943b3b7 YW |
301 | assert(network); |
302 | assert(ret_addresses); | |
303 | assert(ret_size); | |
6e849e95 | 304 | |
0943b3b7 YW |
305 | for (size_t i = 0; i < network->n_dns; i++) { |
306 | union in_addr_union *addr; | |
6e849e95 | 307 | |
0943b3b7 YW |
308 | if (network->dns[i]->family != AF_INET6) |
309 | continue; | |
6e849e95 | 310 | |
0943b3b7 | 311 | addr = &network->dns[i]->address; |
6e849e95 | 312 | |
0943b3b7 YW |
313 | if (in_addr_is_null(AF_INET6, addr) || |
314 | in_addr_is_link_local(AF_INET6, addr) || | |
315 | in_addr_is_localhost(AF_INET6, addr)) | |
316 | continue; | |
317 | ||
318 | if (!GREEDY_REALLOC(addresses, n_addresses + 1)) | |
319 | return -ENOMEM; | |
320 | ||
321 | addresses[n_addresses++] = addr->in6; | |
c9778516 | 322 | } |
6e849e95 | 323 | |
0943b3b7 YW |
324 | *ret_addresses = TAKE_PTR(addresses); |
325 | *ret_size = n_addresses; | |
6e849e95 | 326 | |
0943b3b7 | 327 | return n_addresses; |
6e849e95 PF |
328 | } |
329 | ||
0943b3b7 YW |
330 | static int radv_set_dns(Link *link, Link *uplink) { |
331 | _cleanup_free_ struct in6_addr *dns = NULL; | |
0943b3b7 | 332 | size_t n_dns; |
c9778516 | 333 | int r; |
6e849e95 | 334 | |
0943b3b7 | 335 | if (!link->network->router_emit_dns) |
6e849e95 | 336 | return 0; |
6e849e95 | 337 | |
0943b3b7 YW |
338 | if (link->network->router_dns) { |
339 | struct in6_addr *p; | |
6e849e95 | 340 | |
0943b3b7 YW |
341 | dns = new(struct in6_addr, link->network->n_router_dns); |
342 | if (!dns) | |
343 | return -ENOMEM; | |
6e849e95 | 344 | |
0943b3b7 YW |
345 | p = dns; |
346 | for (size_t i = 0; i < link->network->n_router_dns; i++) | |
347 | if (in6_addr_is_null(&link->network->router_dns[i])) { | |
348 | if (in6_addr_is_set(&link->ipv6ll_address)) | |
349 | *(p++) = link->ipv6ll_address; | |
350 | } else | |
351 | *(p++) = link->network->router_dns[i]; | |
6e849e95 | 352 | |
0943b3b7 | 353 | n_dns = p - dns; |
a8d4a210 | 354 | |
0943b3b7 YW |
355 | goto set_dns; |
356 | } | |
6e849e95 | 357 | |
0943b3b7 YW |
358 | r = network_get_ipv6_dns(link->network, &dns, &n_dns); |
359 | if (r > 0) | |
360 | goto set_dns; | |
6e849e95 | 361 | |
0943b3b7 YW |
362 | if (uplink) { |
363 | assert(uplink->network); | |
364 | ||
365 | r = network_get_ipv6_dns(uplink->network, &dns, &n_dns); | |
366 | if (r > 0) | |
367 | goto set_dns; | |
6e849e95 PF |
368 | } |
369 | ||
6e849e95 | 370 | return 0; |
bd6379ec | 371 | |
0943b3b7 YW |
372 | set_dns: |
373 | return sd_radv_set_rdnss(link->radv, | |
165a654e | 374 | usec_to_lifetime(link->network->router_dns_lifetime_usec), |
0943b3b7 YW |
375 | dns, n_dns); |
376 | } | |
bd6379ec | 377 | |
0943b3b7 | 378 | static int radv_set_domains(Link *link, Link *uplink) { |
0943b3b7 | 379 | _cleanup_free_ char **s = NULL; /* just free() because the strings are owned by the set */ |
165a654e | 380 | OrderedSet *search_domains; |
bd6379ec | 381 | |
0943b3b7 | 382 | if (!link->network->router_emit_domains) |
bd6379ec | 383 | return 0; |
bd6379ec | 384 | |
0943b3b7 | 385 | search_domains = link->network->router_search_domains; |
bd6379ec | 386 | |
0943b3b7 YW |
387 | if (search_domains) |
388 | goto set_domains; | |
0e1fb1d0 | 389 | |
0943b3b7 YW |
390 | search_domains = link->network->search_domains; |
391 | if (search_domains) | |
392 | goto set_domains; | |
0e1fb1d0 | 393 | |
0943b3b7 YW |
394 | if (uplink) { |
395 | assert(uplink->network); | |
0e1fb1d0 | 396 | |
0943b3b7 YW |
397 | search_domains = uplink->network->search_domains; |
398 | if (search_domains) | |
399 | goto set_domains; | |
0e1fb1d0 YW |
400 | } |
401 | ||
0e1fb1d0 | 402 | return 0; |
0e1fb1d0 | 403 | |
0943b3b7 YW |
404 | set_domains: |
405 | s = ordered_set_get_strv(search_domains); | |
406 | if (!s) | |
407 | return log_oom(); | |
203d4df5 | 408 | |
0943b3b7 | 409 | return sd_radv_set_dnssl(link->radv, |
165a654e | 410 | usec_to_lifetime(link->network->router_dns_lifetime_usec), |
0943b3b7 | 411 | s); |
203d4df5 | 412 | |
0943b3b7 | 413 | } |
203d4df5 | 414 | |
0943b3b7 | 415 | static int radv_find_uplink(Link *link, Link **ret) { |
f6032ff3 YW |
416 | int r; |
417 | ||
0943b3b7 | 418 | assert(link); |
203d4df5 | 419 | |
0943b3b7 YW |
420 | if (link->network->router_uplink_name) |
421 | return link_get_by_name(link->manager, link->network->router_uplink_name, ret); | |
203d4df5 | 422 | |
0943b3b7 YW |
423 | if (link->network->router_uplink_index > 0) |
424 | return link_get_by_index(link->manager, link->network->router_uplink_index, ret); | |
425 | ||
426 | if (link->network->router_uplink_index == UPLINK_INDEX_AUTO) { | |
a27588d4 YW |
427 | if (link_dhcp_pd_is_enabled(link)) |
428 | r = dhcp_pd_find_uplink(link, ret); /* When DHCP-PD is enabled, use its uplink. */ | |
f6032ff3 YW |
429 | else |
430 | r = manager_find_uplink(link->manager, AF_INET6, link, ret); | |
431 | if (r < 0) | |
432 | /* It is not necessary to propagate error in automatic selection. */ | |
0943b3b7 | 433 | *ret = NULL; |
c9778516 YW |
434 | return 0; |
435 | } | |
203d4df5 | 436 | |
0943b3b7 | 437 | *ret = NULL; |
203d4df5 SS |
438 | return 0; |
439 | } | |
440 | ||
0943b3b7 | 441 | static int radv_configure(Link *link) { |
0943b3b7 YW |
442 | Link *uplink = NULL; |
443 | RoutePrefix *q; | |
444 | Prefix *p; | |
203d4df5 SS |
445 | int r; |
446 | ||
0943b3b7 YW |
447 | assert(link); |
448 | assert(link->network); | |
203d4df5 | 449 | |
0943b3b7 YW |
450 | if (link->radv) |
451 | return -EBUSY; | |
452 | ||
453 | r = sd_radv_new(&link->radv); | |
203d4df5 | 454 | if (r < 0) |
0943b3b7 | 455 | return r; |
203d4df5 | 456 | |
0943b3b7 YW |
457 | r = sd_radv_attach_event(link->radv, link->manager->event, 0); |
458 | if (r < 0) | |
459 | return r; | |
203d4df5 | 460 | |
0943b3b7 YW |
461 | r = sd_radv_set_mac(link->radv, &link->hw_addr.ether); |
462 | if (r < 0) | |
463 | return r; | |
203d4df5 | 464 | |
0943b3b7 YW |
465 | r = sd_radv_set_ifindex(link->radv, link->ifindex); |
466 | if (r < 0) | |
467 | return r; | |
203d4df5 | 468 | |
0943b3b7 YW |
469 | r = sd_radv_set_managed_information(link->radv, link->network->router_managed); |
470 | if (r < 0) | |
471 | return r; | |
203d4df5 | 472 | |
0943b3b7 YW |
473 | r = sd_radv_set_other_information(link->radv, link->network->router_other_information); |
474 | if (r < 0) | |
475 | return r; | |
c555a358 | 476 | |
7003b114 | 477 | r = sd_radv_set_router_lifetime(link->radv, link->network->router_lifetime_usec); |
0943b3b7 YW |
478 | if (r < 0) |
479 | return r; | |
c555a358 | 480 | |
7003b114 | 481 | if (link->network->router_lifetime_usec > 0) { |
0943b3b7 YW |
482 | r = sd_radv_set_preference(link->radv, link->network->router_preference); |
483 | if (r < 0) | |
484 | return r; | |
485 | } | |
c555a358 | 486 | |
0943b3b7 | 487 | HASHMAP_FOREACH(p, link->network->prefixes_by_section) { |
2ac41679 YW |
488 | r = radv_set_prefix(link, p); |
489 | if (r < 0 && r != -EEXIST) | |
0943b3b7 YW |
490 | return r; |
491 | } | |
c555a358 | 492 | |
0943b3b7 | 493 | HASHMAP_FOREACH(q, link->network->route_prefixes_by_section) { |
2ac41679 YW |
494 | r = radv_set_route_prefix(link, q); |
495 | if (r < 0 && r != -EEXIST) | |
0943b3b7 YW |
496 | return r; |
497 | } | |
c555a358 | 498 | |
0943b3b7 | 499 | (void) radv_find_uplink(link, &uplink); |
c555a358 | 500 | |
0943b3b7 YW |
501 | r = radv_set_dns(link, uplink); |
502 | if (r < 0) | |
503 | return log_link_debug_errno(link, r, "Could not set RA DNS: %m"); | |
c555a358 | 504 | |
0943b3b7 YW |
505 | r = radv_set_domains(link, uplink); |
506 | if (r < 0) | |
507 | return log_link_debug_errno(link, r, "Could not set RA Domains: %m"); | |
c555a358 | 508 | |
0943b3b7 | 509 | return 0; |
c555a358 PF |
510 | } |
511 | ||
0943b3b7 YW |
512 | int radv_update_mac(Link *link) { |
513 | bool restart; | |
c555a358 PF |
514 | int r; |
515 | ||
0943b3b7 | 516 | assert(link); |
c555a358 | 517 | |
0943b3b7 YW |
518 | if (!link->radv) |
519 | return 0; | |
fd3ef936 | 520 | |
0943b3b7 | 521 | restart = sd_radv_is_running(link->radv); |
c555a358 | 522 | |
0943b3b7 YW |
523 | r = sd_radv_stop(link->radv); |
524 | if (r < 0) | |
525 | return r; | |
fd3ef936 | 526 | |
0943b3b7 YW |
527 | r = sd_radv_set_mac(link->radv, &link->hw_addr.ether); |
528 | if (r < 0) | |
529 | return r; | |
c555a358 | 530 | |
0943b3b7 YW |
531 | if (restart) { |
532 | r = sd_radv_start(link->radv); | |
533 | if (r < 0) | |
534 | return r; | |
c555a358 PF |
535 | } |
536 | ||
0943b3b7 YW |
537 | return 0; |
538 | } | |
c555a358 | 539 | |
0943b3b7 YW |
540 | static int radv_is_ready_to_configure(Link *link) { |
541 | bool needs_uplink = false; | |
542 | int r; | |
c555a358 | 543 | |
0943b3b7 YW |
544 | assert(link); |
545 | assert(link->network); | |
349a981d | 546 | |
0943b3b7 YW |
547 | if (!IN_SET(link->state, LINK_STATE_CONFIGURING, LINK_STATE_CONFIGURED)) |
548 | return false; | |
c555a358 | 549 | |
0943b3b7 YW |
550 | if (in6_addr_is_null(&link->ipv6ll_address)) |
551 | return false; | |
c555a358 | 552 | |
218a8502 YW |
553 | if (link->hw_addr.length != ETH_ALEN || hw_addr_is_null(&link->hw_addr)) |
554 | return false; | |
555 | ||
0943b3b7 YW |
556 | if (link->network->router_emit_dns && !link->network->router_dns) { |
557 | _cleanup_free_ struct in6_addr *dns = NULL; | |
558 | size_t n_dns; | |
c555a358 | 559 | |
0943b3b7 YW |
560 | r = network_get_ipv6_dns(link->network, &dns, &n_dns); |
561 | if (r < 0) | |
562 | return r; | |
c555a358 | 563 | |
0943b3b7 YW |
564 | needs_uplink = r == 0; |
565 | } | |
c555a358 | 566 | |
0943b3b7 YW |
567 | if (link->network->router_emit_domains && |
568 | !link->network->router_search_domains && | |
569 | !link->network->search_domains) | |
570 | needs_uplink = true; | |
571 | ||
572 | if (needs_uplink) { | |
573 | Link *uplink = NULL; | |
c555a358 | 574 | |
0943b3b7 YW |
575 | if (radv_find_uplink(link, &uplink) < 0) |
576 | return false; | |
c555a358 | 577 | |
0943b3b7 YW |
578 | if (uplink && !uplink->network) |
579 | return false; | |
580 | } | |
c555a358 | 581 | |
0943b3b7 YW |
582 | return true; |
583 | } | |
c555a358 | 584 | |
ff51134c | 585 | int radv_process_request(Request *req, Link *link, void *userdata) { |
0943b3b7 | 586 | int r; |
349a981d | 587 | |
ff51134c | 588 | assert(link); |
c555a358 | 589 | |
0943b3b7 YW |
590 | r = radv_is_ready_to_configure(link); |
591 | if (r <= 0) | |
592 | return r; | |
5e2a51d5 | 593 | |
0943b3b7 YW |
594 | r = radv_configure(link); |
595 | if (r < 0) | |
596 | return log_link_warning_errno(link, r, "Failed to configure IPv6 Router Advertisement engine: %m"); | |
c555a358 | 597 | |
0943b3b7 | 598 | if (link_has_carrier(link)) { |
0f96a823 | 599 | r = radv_start(link); |
0943b3b7 YW |
600 | if (r < 0) |
601 | return log_link_warning_errno(link, r, "Failed to start IPv6 Router Advertisement engine: %m"); | |
602 | } | |
603 | ||
604 | log_link_debug(link, "IPv6 Router Advertisement engine is configured%s.", | |
605 | link_has_carrier(link) ? " and started." : ""); | |
606 | return 1; | |
c555a358 PF |
607 | } |
608 | ||
0943b3b7 YW |
609 | int link_request_radv(Link *link) { |
610 | int r; | |
63295b42 | 611 | |
0943b3b7 | 612 | assert(link); |
63295b42 | 613 | |
0943b3b7 YW |
614 | if (!link_radv_enabled(link)) |
615 | return 0; | |
63295b42 | 616 | |
0943b3b7 | 617 | if (link->radv) |
63295b42 | 618 | return 0; |
63295b42 | 619 | |
0943b3b7 YW |
620 | r = link_queue_request(link, REQUEST_TYPE_RADV, NULL, false, NULL, NULL, NULL); |
621 | if (r < 0) | |
622 | return log_link_warning_errno(link, r, "Failed to request configuring of the IPv6 Router Advertisement engine: %m"); | |
623 | ||
624 | log_link_debug(link, "Requested configuring of the IPv6 Router Advertisement engine."); | |
63295b42 YW |
625 | return 0; |
626 | } | |
627 | ||
0f96a823 YW |
628 | int radv_start(Link *link) { |
629 | int r; | |
630 | ||
631 | assert(link); | |
632 | assert(link->network); | |
633 | ||
634 | if (!link->radv) | |
635 | return 0; | |
636 | ||
637 | if (!link_has_carrier(link)) | |
638 | return 0; | |
639 | ||
640 | if (in6_addr_is_null(&link->ipv6ll_address)) | |
641 | return 0; | |
642 | ||
643 | if (sd_radv_is_running(link->radv)) | |
644 | return 0; | |
645 | ||
a27588d4 YW |
646 | if (link->network->dhcp_pd_announce) { |
647 | r = dhcp_request_prefix_delegation(link); | |
0f96a823 | 648 | if (r < 0) |
a27588d4 | 649 | return log_link_debug_errno(link, r, "Failed to request DHCP delegated subnet prefix: %m"); |
0f96a823 YW |
650 | } |
651 | ||
652 | log_link_debug(link, "Starting IPv6 Router Advertisements"); | |
653 | return sd_radv_start(link->radv); | |
654 | } | |
655 | ||
0943b3b7 YW |
656 | int radv_add_prefix( |
657 | Link *link, | |
658 | const struct in6_addr *prefix, | |
659 | uint8_t prefix_len, | |
16bc8635 YW |
660 | usec_t lifetime_preferred_usec, |
661 | usec_t lifetime_valid_usec) { | |
0943b3b7 YW |
662 | |
663 | _cleanup_(sd_radv_prefix_unrefp) sd_radv_prefix *p = NULL; | |
95081e08 | 664 | int r; |
091214b6 PF |
665 | |
666 | assert(link); | |
091214b6 | 667 | |
0943b3b7 YW |
668 | if (!link->radv) |
669 | return 0; | |
bc9e40c9 | 670 | |
0943b3b7 | 671 | r = sd_radv_prefix_new(&p); |
091214b6 PF |
672 | if (r < 0) |
673 | return r; | |
674 | ||
0943b3b7 | 675 | r = sd_radv_prefix_set_prefix(p, prefix, prefix_len); |
091214b6 PF |
676 | if (r < 0) |
677 | return r; | |
678 | ||
c9e2c2da | 679 | r = sd_radv_prefix_set_preferred_lifetime(p, RADV_DEFAULT_PREFERRED_LIFETIME_USEC, lifetime_preferred_usec); |
091214b6 PF |
680 | if (r < 0) |
681 | return r; | |
682 | ||
c9e2c2da | 683 | r = sd_radv_prefix_set_valid_lifetime(p, RADV_DEFAULT_VALID_LIFETIME_USEC, lifetime_valid_usec); |
091214b6 PF |
684 | if (r < 0) |
685 | return r; | |
686 | ||
95e104e0 | 687 | r = sd_radv_add_prefix(link->radv, p); |
0943b3b7 | 688 | if (r < 0 && r != -EEXIST) |
091214b6 PF |
689 | return r; |
690 | ||
0943b3b7 YW |
691 | return 0; |
692 | } | |
091214b6 | 693 | |
2110040b YW |
694 | static int prefix_section_verify(Prefix *p) { |
695 | assert(p); | |
696 | ||
697 | if (section_is_invalid(p->section)) | |
698 | return -EINVAL; | |
699 | ||
700 | if (in6_addr_is_null(&p->prefix)) | |
701 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
702 | "%s: [IPv6Prefix] section without Prefix= field configured, " | |
703 | "or specified prefix is the null address. " | |
704 | "Ignoring [IPv6Prefix] section from line %u.", | |
705 | p->section->filename, p->section->line); | |
706 | ||
707 | if (p->prefixlen < 3 || p->prefixlen > 128) | |
708 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
709 | "%s: Invalid prefix length %u is specified in [IPv6Prefix] section. " | |
710 | "Valid range is 3…128. Ignoring [IPv6Prefix] section from line %u.", | |
711 | p->section->filename, p->prefixlen, p->section->line); | |
712 | ||
713 | if (p->prefixlen > 64) { | |
714 | _cleanup_free_ char *str = NULL; | |
715 | ||
716 | if (p->assign) | |
717 | (void) in6_addr_prefix_to_string(&p->prefix, p->prefixlen, &str); | |
718 | ||
719 | log_info("%s: Unusual prefix length %u (> 64) is specified in [IPv6Prefix] section from line %u%s%s.", | |
720 | p->section->filename, p->prefixlen, p->section->line, | |
721 | p->assign ? ", refusing to assign an address in " : "", | |
722 | p->assign ? strna(str) : ""); | |
723 | ||
724 | p->assign = false; | |
725 | } | |
726 | ||
727 | if (p->valid_lifetime == 0) | |
728 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
729 | "%s: The valid lifetime of prefix cannot be zero. " | |
730 | "Ignoring [IPv6Prefix] section from line %u.", | |
731 | p->section->filename, p->section->line); | |
732 | ||
733 | if (p->preferred_lifetime > p->valid_lifetime) | |
734 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
735 | "%s: The preferred lifetime %s is longer than the valid lifetime %s. " | |
736 | "Ignoring [IPv6Prefix] section from line %u.", | |
737 | p->section->filename, | |
738 | FORMAT_TIMESPAN(p->preferred_lifetime, USEC_PER_SEC), | |
739 | FORMAT_TIMESPAN(p->valid_lifetime, USEC_PER_SEC), | |
740 | p->section->line); | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
0943b3b7 | 745 | void network_drop_invalid_prefixes(Network *network) { |
2110040b | 746 | Prefix *p; |
2075e596 | 747 | |
0943b3b7 YW |
748 | assert(network); |
749 | ||
2110040b YW |
750 | HASHMAP_FOREACH(p, network->prefixes_by_section) |
751 | if (prefix_section_verify(p) < 0) | |
752 | prefix_free(p); | |
753 | } | |
754 | ||
755 | static int route_prefix_section_verify(RoutePrefix *p) { | |
756 | if (section_is_invalid(p->section)) | |
757 | return -EINVAL; | |
758 | ||
759 | if (p->prefixlen > 128) | |
760 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
761 | "%s: Invalid prefix length %u is specified in [IPv6RoutePrefix] section. " | |
762 | "Valid range is 0…128. Ignoring [IPv6RoutePrefix] section from line %u.", | |
763 | p->section->filename, p->prefixlen, p->section->line); | |
764 | ||
765 | if (p->lifetime == 0) | |
766 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
767 | "%s: The lifetime of route cannot be zero. " | |
768 | "Ignoring [IPv6RoutePrefix] section from line %u.", | |
769 | p->section->filename, p->section->line); | |
770 | ||
771 | return 0; | |
0943b3b7 YW |
772 | } |
773 | ||
774 | void network_drop_invalid_route_prefixes(Network *network) { | |
2110040b | 775 | RoutePrefix *p; |
0943b3b7 YW |
776 | |
777 | assert(network); | |
778 | ||
2110040b YW |
779 | HASHMAP_FOREACH(p, network->route_prefixes_by_section) |
780 | if (route_prefix_section_verify(p) < 0) | |
781 | route_prefix_free(p); | |
0943b3b7 YW |
782 | } |
783 | ||
784 | int config_parse_prefix( | |
785 | const char *unit, | |
786 | const char *filename, | |
787 | unsigned line, | |
788 | const char *section, | |
789 | unsigned section_line, | |
790 | const char *lvalue, | |
791 | int ltype, | |
792 | const char *rvalue, | |
793 | void *data, | |
794 | void *userdata) { | |
795 | ||
0943b3b7 | 796 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 YW |
797 | Network *network = userdata; |
798 | union in_addr_union a; | |
0943b3b7 YW |
799 | int r; |
800 | ||
801 | assert(filename); | |
802 | assert(section); | |
803 | assert(lvalue); | |
804 | assert(rvalue); | |
2ac41679 | 805 | assert(userdata); |
0943b3b7 YW |
806 | |
807 | r = prefix_new_static(network, filename, section_line, &p); | |
091214b6 | 808 | if (r < 0) |
0943b3b7 | 809 | return log_oom(); |
091214b6 | 810 | |
2ac41679 | 811 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &a, &p->prefixlen); |
0943b3b7 | 812 | if (r < 0) { |
2ac41679 YW |
813 | log_syntax(unit, LOG_WARNING, filename, line, r, |
814 | "Prefix is invalid, ignoring assignment: %s", rvalue); | |
0943b3b7 | 815 | return 0; |
8a08bbfc | 816 | } |
cf72568a YW |
817 | |
818 | (void) in6_addr_mask(&a.in6, p->prefixlen); | |
2ac41679 | 819 | p->prefix = a.in6; |
203d4df5 | 820 | |
2ac41679 | 821 | TAKE_PTR(p); |
0943b3b7 YW |
822 | return 0; |
823 | } | |
a254fab2 | 824 | |
2ac41679 | 825 | int config_parse_prefix_boolean( |
0943b3b7 YW |
826 | const char *unit, |
827 | const char *filename, | |
828 | unsigned line, | |
829 | const char *section, | |
830 | unsigned section_line, | |
831 | const char *lvalue, | |
832 | int ltype, | |
833 | const char *rvalue, | |
834 | void *data, | |
835 | void *userdata) { | |
a254fab2 | 836 | |
0943b3b7 | 837 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 | 838 | Network *network = userdata; |
0943b3b7 YW |
839 | int r; |
840 | ||
841 | assert(filename); | |
842 | assert(section); | |
843 | assert(lvalue); | |
844 | assert(rvalue); | |
2ac41679 | 845 | assert(userdata); |
0943b3b7 YW |
846 | |
847 | r = prefix_new_static(network, filename, section_line, &p); | |
a254fab2 | 848 | if (r < 0) |
0943b3b7 YW |
849 | return log_oom(); |
850 | ||
851 | r = parse_boolean(rvalue); | |
852 | if (r < 0) { | |
2ac41679 YW |
853 | log_syntax(unit, LOG_WARNING, filename, line, r, |
854 | "Failed to parse %s=, ignoring assignment: %s", lvalue, rvalue); | |
0943b3b7 YW |
855 | return 0; |
856 | } | |
857 | ||
858 | if (streq(lvalue, "OnLink")) | |
2ac41679 | 859 | p->onlink = r; |
0943b3b7 | 860 | else if (streq(lvalue, "AddressAutoconfiguration")) |
2ac41679 YW |
861 | p->address_auto_configuration = r; |
862 | else if (streq(lvalue, "Assign")) | |
863 | p->assign = r; | |
864 | else | |
865 | assert_not_reached(); | |
a254fab2 | 866 | |
2ac41679 | 867 | TAKE_PTR(p); |
fd3ef936 | 868 | return 0; |
091214b6 | 869 | } |
ca5ad760 | 870 | |
0943b3b7 YW |
871 | int config_parse_prefix_lifetime( |
872 | const char *unit, | |
873 | const char *filename, | |
874 | unsigned line, | |
875 | const char *section, | |
876 | unsigned section_line, | |
877 | const char *lvalue, | |
878 | int ltype, | |
879 | const char *rvalue, | |
880 | void *data, | |
881 | void *userdata) { | |
882 | ||
0943b3b7 | 883 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 | 884 | Network *network = userdata; |
0943b3b7 | 885 | usec_t usec; |
be9363cc YW |
886 | int r; |
887 | ||
0943b3b7 YW |
888 | assert(filename); |
889 | assert(section); | |
890 | assert(lvalue); | |
891 | assert(rvalue); | |
2ac41679 | 892 | assert(userdata); |
be9363cc | 893 | |
0943b3b7 | 894 | r = prefix_new_static(network, filename, section_line, &p); |
a391901e | 895 | if (r < 0) |
0943b3b7 | 896 | return log_oom(); |
be9363cc | 897 | |
0943b3b7 YW |
898 | r = parse_sec(rvalue, &usec); |
899 | if (r < 0) { | |
2ac41679 YW |
900 | log_syntax(unit, LOG_WARNING, filename, line, r, |
901 | "Lifetime is invalid, ignoring assignment: %s", rvalue); | |
0943b3b7 YW |
902 | return 0; |
903 | } | |
be9363cc | 904 | |
2ac41679 YW |
905 | if (usec != USEC_INFINITY && DIV_ROUND_UP(usec, USEC_PER_SEC) >= UINT32_MAX) { |
906 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
907 | "Lifetime is too long, ignoring assignment: %s", rvalue); | |
0943b3b7 | 908 | return 0; |
be9363cc YW |
909 | } |
910 | ||
2ac41679 YW |
911 | if (streq(lvalue, "PreferredLifetimeSec")) |
912 | p->preferred_lifetime = usec; | |
913 | else if (streq(lvalue, "ValidLifetimeSec")) | |
914 | p->valid_lifetime = usec; | |
915 | else | |
916 | assert_not_reached(); | |
63295b42 | 917 | |
2ac41679 | 918 | TAKE_PTR(p); |
0943b3b7 | 919 | return 0; |
a254fab2 YW |
920 | } |
921 | ||
0943b3b7 YW |
922 | int config_parse_prefix_metric( |
923 | const char *unit, | |
924 | const char *filename, | |
925 | unsigned line, | |
926 | const char *section, | |
927 | unsigned section_line, | |
928 | const char *lvalue, | |
929 | int ltype, | |
930 | const char *rvalue, | |
931 | void *data, | |
932 | void *userdata) { | |
a254fab2 | 933 | |
0943b3b7 | 934 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 | 935 | Network *network = userdata; |
0943b3b7 | 936 | int r; |
a254fab2 | 937 | |
0943b3b7 YW |
938 | assert(filename); |
939 | assert(section); | |
940 | assert(lvalue); | |
941 | assert(rvalue); | |
2ac41679 | 942 | assert(userdata); |
a254fab2 | 943 | |
0943b3b7 | 944 | r = prefix_new_static(network, filename, section_line, &p); |
a254fab2 | 945 | if (r < 0) |
0943b3b7 | 946 | return log_oom(); |
a254fab2 | 947 | |
0943b3b7 YW |
948 | r = safe_atou32(rvalue, &p->route_metric); |
949 | if (r < 0) { | |
950 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
951 | "Failed to parse %s=, ignoring assignment: %s", | |
952 | lvalue, rvalue); | |
953 | return 0; | |
a254fab2 YW |
954 | } |
955 | ||
0943b3b7 | 956 | TAKE_PTR(p); |
0943b3b7 | 957 | return 0; |
a254fab2 YW |
958 | } |
959 | ||
e609cd06 YW |
960 | int config_parse_prefix_token( |
961 | const char *unit, | |
962 | const char *filename, | |
963 | unsigned line, | |
964 | const char *section, | |
965 | unsigned section_line, | |
966 | const char *lvalue, | |
967 | int ltype, | |
968 | const char *rvalue, | |
969 | void *data, | |
970 | void *userdata) { | |
971 | ||
972 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; | |
973 | Network *network = userdata; | |
974 | int r; | |
975 | ||
976 | assert(filename); | |
977 | assert(section); | |
978 | assert(lvalue); | |
979 | assert(rvalue); | |
980 | assert(userdata); | |
981 | ||
982 | r = prefix_new_static(network, filename, section_line, &p); | |
983 | if (r < 0) | |
984 | return log_oom(); | |
985 | ||
986 | r = config_parse_address_generation_type(unit, filename, line, section, section_line, | |
987 | lvalue, ltype, rvalue, &p->tokens, userdata); | |
988 | if (r < 0) | |
989 | return r; | |
990 | ||
991 | TAKE_PTR(p); | |
992 | return 0; | |
993 | } | |
994 | ||
0943b3b7 YW |
995 | int config_parse_route_prefix( |
996 | const char *unit, | |
997 | const char *filename, | |
998 | unsigned line, | |
999 | const char *section, | |
1000 | unsigned section_line, | |
1001 | const char *lvalue, | |
1002 | int ltype, | |
1003 | const char *rvalue, | |
1004 | void *data, | |
1005 | void *userdata) { | |
1006 | ||
0943b3b7 | 1007 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; |
2ac41679 YW |
1008 | Network *network = userdata; |
1009 | union in_addr_union a; | |
a254fab2 YW |
1010 | int r; |
1011 | ||
0943b3b7 YW |
1012 | assert(filename); |
1013 | assert(section); | |
1014 | assert(lvalue); | |
1015 | assert(rvalue); | |
2ac41679 | 1016 | assert(userdata); |
a254fab2 | 1017 | |
0943b3b7 YW |
1018 | r = route_prefix_new_static(network, filename, section_line, &p); |
1019 | if (r < 0) | |
1020 | return log_oom(); | |
1021 | ||
2ac41679 | 1022 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &a, &p->prefixlen); |
0943b3b7 | 1023 | if (r < 0) { |
2ac41679 YW |
1024 | log_syntax(unit, LOG_WARNING, filename, line, r, |
1025 | "Route prefix is invalid, ignoring assignment: %s", rvalue); | |
a254fab2 | 1026 | return 0; |
0943b3b7 | 1027 | } |
cf72568a YW |
1028 | |
1029 | (void) in6_addr_mask(&a.in6, p->prefixlen); | |
2ac41679 | 1030 | p->prefix = a.in6; |
a254fab2 | 1031 | |
2ac41679 | 1032 | TAKE_PTR(p); |
a254fab2 YW |
1033 | return 0; |
1034 | } | |
1035 | ||
0943b3b7 YW |
1036 | int config_parse_route_prefix_lifetime( |
1037 | const char *unit, | |
1038 | const char *filename, | |
1039 | unsigned line, | |
1040 | const char *section, | |
1041 | unsigned section_line, | |
1042 | const char *lvalue, | |
1043 | int ltype, | |
1044 | const char *rvalue, | |
1045 | void *data, | |
1046 | void *userdata) { | |
a8d4a210 | 1047 | |
0943b3b7 | 1048 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; |
2ac41679 | 1049 | Network *network = userdata; |
0943b3b7 | 1050 | usec_t usec; |
1d596fde YW |
1051 | int r; |
1052 | ||
0943b3b7 YW |
1053 | assert(filename); |
1054 | assert(section); | |
1055 | assert(lvalue); | |
1056 | assert(rvalue); | |
2ac41679 | 1057 | assert(userdata); |
1d596fde | 1058 | |
0943b3b7 | 1059 | r = route_prefix_new_static(network, filename, section_line, &p); |
1d596fde | 1060 | if (r < 0) |
0943b3b7 | 1061 | return log_oom(); |
1d596fde | 1062 | |
0943b3b7 YW |
1063 | r = parse_sec(rvalue, &usec); |
1064 | if (r < 0) { | |
1065 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1066 | "Route lifetime is invalid, ignoring assignment: %s", rvalue); | |
1067 | return 0; | |
1068 | } | |
1d596fde | 1069 | |
2ac41679 YW |
1070 | if (usec != USEC_INFINITY && DIV_ROUND_UP(usec, USEC_PER_SEC) >= UINT32_MAX) { |
1071 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1072 | "Lifetime is too long, ignoring assignment: %s", rvalue); | |
0943b3b7 YW |
1073 | return 0; |
1074 | } | |
1d596fde | 1075 | |
2ac41679 | 1076 | p->lifetime = usec; |
1d596fde | 1077 | |
2ac41679 | 1078 | TAKE_PTR(p); |
1d596fde YW |
1079 | return 0; |
1080 | } | |
1081 | ||
ca5ad760 YW |
1082 | int config_parse_radv_dns( |
1083 | const char *unit, | |
1084 | const char *filename, | |
1085 | unsigned line, | |
1086 | const char *section, | |
1087 | unsigned section_line, | |
1088 | const char *lvalue, | |
1089 | int ltype, | |
1090 | const char *rvalue, | |
1091 | void *data, | |
1092 | void *userdata) { | |
1093 | ||
1094 | Network *n = data; | |
ca5ad760 YW |
1095 | int r; |
1096 | ||
1097 | assert(filename); | |
1098 | assert(lvalue); | |
1099 | assert(rvalue); | |
1100 | ||
a3c1a949 YW |
1101 | if (isempty(rvalue)) { |
1102 | n->n_router_dns = 0; | |
1103 | n->router_dns = mfree(n->router_dns); | |
1104 | return 0; | |
1105 | } | |
1106 | ||
d96edb2c | 1107 | for (const char *p = rvalue;;) { |
ca5ad760 YW |
1108 | _cleanup_free_ char *w = NULL; |
1109 | union in_addr_union a; | |
1110 | ||
1111 | r = extract_first_word(&p, &w, NULL, 0); | |
1112 | if (r == -ENOMEM) | |
1113 | return log_oom(); | |
1114 | if (r < 0) { | |
d96edb2c | 1115 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1116 | "Failed to extract word, ignoring: %s", rvalue); |
1117 | return 0; | |
1118 | } | |
1119 | if (r == 0) | |
d96edb2c | 1120 | return 0; |
ca5ad760 | 1121 | |
fd3ef936 YW |
1122 | if (streq(w, "_link_local")) |
1123 | a = IN_ADDR_NULL; | |
1124 | else { | |
1125 | r = in_addr_from_string(AF_INET6, w, &a); | |
1126 | if (r < 0) { | |
d96edb2c | 1127 | log_syntax(unit, LOG_WARNING, filename, line, r, |
fd3ef936 YW |
1128 | "Failed to parse DNS server address, ignoring: %s", w); |
1129 | continue; | |
1130 | } | |
ca5ad760 | 1131 | |
fd3ef936 | 1132 | if (in_addr_is_null(AF_INET6, &a)) { |
d96edb2c | 1133 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
fd3ef936 YW |
1134 | "DNS server address is null, ignoring: %s", w); |
1135 | continue; | |
1136 | } | |
1137 | } | |
ca5ad760 | 1138 | |
fd3ef936 YW |
1139 | struct in6_addr *m; |
1140 | m = reallocarray(n->router_dns, n->n_router_dns + 1, sizeof(struct in6_addr)); | |
1141 | if (!m) | |
1142 | return log_oom(); | |
ca5ad760 | 1143 | |
fd3ef936 YW |
1144 | m[n->n_router_dns++] = a.in6; |
1145 | n->router_dns = m; | |
ca5ad760 | 1146 | } |
ca5ad760 YW |
1147 | } |
1148 | ||
1149 | int config_parse_radv_search_domains( | |
1150 | const char *unit, | |
1151 | const char *filename, | |
1152 | unsigned line, | |
1153 | const char *section, | |
1154 | unsigned section_line, | |
1155 | const char *lvalue, | |
1156 | int ltype, | |
1157 | const char *rvalue, | |
1158 | void *data, | |
1159 | void *userdata) { | |
1160 | ||
1161 | Network *n = data; | |
ca5ad760 YW |
1162 | int r; |
1163 | ||
1164 | assert(filename); | |
1165 | assert(lvalue); | |
1166 | assert(rvalue); | |
1167 | ||
a3c1a949 YW |
1168 | if (isempty(rvalue)) { |
1169 | n->router_search_domains = ordered_set_free(n->router_search_domains); | |
1170 | return 0; | |
1171 | } | |
1172 | ||
d96edb2c | 1173 | for (const char *p = rvalue;;) { |
ca5ad760 YW |
1174 | _cleanup_free_ char *w = NULL, *idna = NULL; |
1175 | ||
1176 | r = extract_first_word(&p, &w, NULL, 0); | |
1177 | if (r == -ENOMEM) | |
1178 | return log_oom(); | |
1179 | if (r < 0) { | |
d96edb2c | 1180 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1181 | "Failed to extract word, ignoring: %s", rvalue); |
1182 | return 0; | |
1183 | } | |
1184 | if (r == 0) | |
d96edb2c | 1185 | return 0; |
ca5ad760 YW |
1186 | |
1187 | r = dns_name_apply_idna(w, &idna); | |
1188 | if (r < 0) { | |
d96edb2c | 1189 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1190 | "Failed to apply IDNA to domain name '%s', ignoring: %m", w); |
1191 | continue; | |
1192 | } else if (r == 0) | |
1193 | /* transfer ownership to simplify subsequent operations */ | |
1194 | idna = TAKE_PTR(w); | |
1195 | ||
5e276772 | 1196 | r = ordered_set_ensure_allocated(&n->router_search_domains, &string_hash_ops_free); |
ca5ad760 | 1197 | if (r < 0) |
d96edb2c | 1198 | return log_oom(); |
ca5ad760 YW |
1199 | |
1200 | r = ordered_set_consume(n->router_search_domains, TAKE_PTR(idna)); | |
1201 | if (r < 0) | |
d96edb2c | 1202 | return log_oom(); |
ca5ad760 | 1203 | } |
ca5ad760 YW |
1204 | } |
1205 | ||
1206 | static const char * const radv_prefix_delegation_table[_RADV_PREFIX_DELEGATION_MAX] = { | |
a8d4a210 | 1207 | [RADV_PREFIX_DELEGATION_NONE] = "no", |
ca5ad760 | 1208 | [RADV_PREFIX_DELEGATION_STATIC] = "static", |
a8d4a210 YW |
1209 | [RADV_PREFIX_DELEGATION_DHCP6] = "dhcpv6", |
1210 | [RADV_PREFIX_DELEGATION_BOTH] = "yes", | |
ca5ad760 YW |
1211 | }; |
1212 | ||
1213 | DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN( | |
1214 | radv_prefix_delegation, | |
1215 | RADVPrefixDelegation, | |
1216 | RADV_PREFIX_DELEGATION_BOTH); | |
1217 | ||
27ff0490 YW |
1218 | int config_parse_router_prefix_delegation( |
1219 | const char *unit, | |
1220 | const char *filename, | |
1221 | unsigned line, | |
1222 | const char *section, | |
1223 | unsigned section_line, | |
1224 | const char *lvalue, | |
1225 | int ltype, | |
1226 | const char *rvalue, | |
1227 | void *data, | |
1228 | void *userdata) { | |
1229 | ||
1230 | RADVPrefixDelegation val, *ra = data; | |
1231 | int r; | |
1232 | ||
1233 | assert(filename); | |
1234 | assert(lvalue); | |
1235 | assert(rvalue); | |
1236 | assert(data); | |
1237 | ||
1238 | if (streq(lvalue, "IPv6SendRA")) { | |
1239 | r = parse_boolean(rvalue); | |
1240 | if (r < 0) { | |
1241 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1242 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); | |
1243 | return 0; | |
1244 | } | |
1245 | ||
1246 | /* When IPv6SendRA= is enabled, only static prefixes are sent by default, and users | |
1247 | * need to explicitly enable DHCPv6PrefixDelegation=. */ | |
1248 | *ra = r ? RADV_PREFIX_DELEGATION_STATIC : RADV_PREFIX_DELEGATION_NONE; | |
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | /* For backward compatibility */ | |
1253 | val = radv_prefix_delegation_from_string(rvalue); | |
1254 | if (val < 0) { | |
b98680b2 | 1255 | log_syntax(unit, LOG_WARNING, filename, line, val, |
27ff0490 YW |
1256 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); |
1257 | return 0; | |
1258 | } | |
1259 | ||
1260 | *ra = val; | |
1261 | return 0; | |
1262 | } | |
a8d4a210 | 1263 | |
4f1ac4a3 YW |
1264 | int config_parse_router_lifetime( |
1265 | const char *unit, | |
1266 | const char *filename, | |
1267 | unsigned line, | |
1268 | const char *section, | |
1269 | unsigned section_line, | |
1270 | const char *lvalue, | |
1271 | int ltype, | |
1272 | const char *rvalue, | |
1273 | void *data, | |
1274 | void *userdata) { | |
1275 | ||
1276 | usec_t usec, *lifetime = data; | |
1277 | int r; | |
1278 | ||
1279 | assert(filename); | |
1280 | assert(section); | |
1281 | assert(lvalue); | |
1282 | assert(rvalue); | |
1283 | assert(data); | |
1284 | ||
1285 | if (isempty(rvalue)) { | |
1286 | *lifetime = RADV_DEFAULT_ROUTER_LIFETIME_USEC; | |
1287 | return 0; | |
1288 | } | |
1289 | ||
1290 | r = parse_sec(rvalue, &usec); | |
1291 | if (r < 0) { | |
1292 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1293 | "Failed to parse router lifetime, ignoring assignment: %s", rvalue); | |
1294 | return 0; | |
1295 | } | |
1296 | if (usec > 0) { | |
1297 | if (usec < RADV_MIN_ROUTER_LIFETIME_USEC) { | |
1298 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1299 | "Router lifetime %s is too short, using %s.", | |
1300 | FORMAT_TIMESPAN(usec, USEC_PER_SEC), | |
1301 | FORMAT_TIMESPAN(RADV_MIN_ROUTER_LIFETIME_USEC, USEC_PER_SEC)); | |
1302 | usec = RADV_MIN_ROUTER_LIFETIME_USEC; | |
1303 | } else if (usec > RADV_MAX_ROUTER_LIFETIME_USEC) { | |
1304 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1305 | "Router lifetime %s is too large, using %s.", | |
1306 | FORMAT_TIMESPAN(usec, USEC_PER_SEC), | |
1307 | FORMAT_TIMESPAN(RADV_MAX_ROUTER_LIFETIME_USEC, USEC_PER_SEC)); | |
1308 | usec = RADV_MAX_ROUTER_LIFETIME_USEC; | |
1309 | } | |
1310 | } | |
1311 | ||
1312 | *lifetime = usec; | |
1313 | return 0; | |
1314 | } | |
1315 | ||
a8d4a210 YW |
1316 | int config_parse_router_preference( |
1317 | const char *unit, | |
1318 | const char *filename, | |
1319 | unsigned line, | |
1320 | const char *section, | |
1321 | unsigned section_line, | |
1322 | const char *lvalue, | |
1323 | int ltype, | |
1324 | const char *rvalue, | |
1325 | void *data, | |
1326 | void *userdata) { | |
1327 | ||
ca5ad760 YW |
1328 | Network *network = userdata; |
1329 | ||
1330 | assert(filename); | |
1331 | assert(section); | |
1332 | assert(lvalue); | |
1333 | assert(rvalue); | |
1334 | assert(data); | |
1335 | ||
1336 | if (streq(rvalue, "high")) | |
1337 | network->router_preference = SD_NDISC_PREFERENCE_HIGH; | |
1338 | else if (STR_IN_SET(rvalue, "medium", "normal", "default")) | |
1339 | network->router_preference = SD_NDISC_PREFERENCE_MEDIUM; | |
1340 | else if (streq(rvalue, "low")) | |
1341 | network->router_preference = SD_NDISC_PREFERENCE_LOW; | |
1342 | else | |
d96edb2c YW |
1343 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1344 | "Invalid router preference, ignoring assignment: %s", rvalue); | |
ca5ad760 YW |
1345 | |
1346 | return 0; | |
1347 | } |