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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 | ||
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 | ||
307fe3cd | 72 | config_section_free(prefix->section); |
e609cd06 | 73 | set_free(prefix->tokens); |
6e849e95 | 74 | |
064dfb05 | 75 | return mfree(prefix); |
6e849e95 PF |
76 | } |
77 | ||
307fe3cd | 78 | DEFINE_SECTION_CLEANUP_FUNCTIONS(Prefix, prefix_free); |
064dfb05 | 79 | |
a8d4a210 | 80 | static int prefix_new_static(Network *network, const char *filename, unsigned section_line, Prefix **ret) { |
307fe3cd | 81 | _cleanup_(config_section_freep) ConfigSection *n = NULL; |
8e766630 | 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 | |
307fe3cd | 90 | r = config_section_new(filename, section_line, &n); |
ecb0e85e YW |
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 | |
307fe3cd | 114 | r = hashmap_ensure_put(&network->prefixes_by_section, &config_section_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 | ||
307fe3cd | 131 | config_section_free(prefix->section); |
203d4df5 | 132 | |
064dfb05 YW |
133 | return mfree(prefix); |
134 | } | |
135 | ||
307fe3cd | 136 | DEFINE_SECTION_CLEANUP_FUNCTIONS(RoutePrefix, route_prefix_free); |
064dfb05 | 137 | |
a8d4a210 | 138 | static int route_prefix_new_static(Network *network, const char *filename, unsigned section_line, RoutePrefix **ret) { |
307fe3cd | 139 | _cleanup_(config_section_freep) ConfigSection *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 | |
307fe3cd | 148 | r = config_section_new(filename, section_line, &n); |
ecb0e85e YW |
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 | |
307fe3cd | 169 | r = hashmap_ensure_put(&network->route_prefixes_by_section, &config_section_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 | 412 | static int radv_find_uplink(Link *link, Link **ret) { |
f6032ff3 YW |
413 | int r; |
414 | ||
0943b3b7 | 415 | assert(link); |
203d4df5 | 416 | |
0943b3b7 YW |
417 | if (link->network->router_uplink_name) |
418 | return link_get_by_name(link->manager, link->network->router_uplink_name, ret); | |
203d4df5 | 419 | |
0943b3b7 YW |
420 | if (link->network->router_uplink_index > 0) |
421 | return link_get_by_index(link->manager, link->network->router_uplink_index, ret); | |
422 | ||
423 | if (link->network->router_uplink_index == UPLINK_INDEX_AUTO) { | |
a27588d4 YW |
424 | if (link_dhcp_pd_is_enabled(link)) |
425 | r = dhcp_pd_find_uplink(link, ret); /* When DHCP-PD is enabled, use its uplink. */ | |
f6032ff3 YW |
426 | else |
427 | r = manager_find_uplink(link->manager, AF_INET6, link, ret); | |
428 | if (r < 0) | |
429 | /* It is not necessary to propagate error in automatic selection. */ | |
0943b3b7 | 430 | *ret = NULL; |
c9778516 YW |
431 | return 0; |
432 | } | |
203d4df5 | 433 | |
0943b3b7 | 434 | *ret = NULL; |
203d4df5 SS |
435 | return 0; |
436 | } | |
437 | ||
0943b3b7 | 438 | static int radv_configure(Link *link) { |
0943b3b7 YW |
439 | Link *uplink = NULL; |
440 | RoutePrefix *q; | |
441 | Prefix *p; | |
203d4df5 SS |
442 | int r; |
443 | ||
0943b3b7 YW |
444 | assert(link); |
445 | assert(link->network); | |
203d4df5 | 446 | |
0943b3b7 YW |
447 | if (link->radv) |
448 | return -EBUSY; | |
449 | ||
450 | r = sd_radv_new(&link->radv); | |
203d4df5 | 451 | if (r < 0) |
0943b3b7 | 452 | return r; |
203d4df5 | 453 | |
0943b3b7 YW |
454 | r = sd_radv_attach_event(link->radv, link->manager->event, 0); |
455 | if (r < 0) | |
456 | return r; | |
203d4df5 | 457 | |
0943b3b7 YW |
458 | r = sd_radv_set_mac(link->radv, &link->hw_addr.ether); |
459 | if (r < 0) | |
460 | return r; | |
203d4df5 | 461 | |
0943b3b7 YW |
462 | r = sd_radv_set_ifindex(link->radv, link->ifindex); |
463 | if (r < 0) | |
464 | return r; | |
203d4df5 | 465 | |
0943b3b7 YW |
466 | r = sd_radv_set_managed_information(link->radv, link->network->router_managed); |
467 | if (r < 0) | |
468 | return r; | |
203d4df5 | 469 | |
0943b3b7 YW |
470 | r = sd_radv_set_other_information(link->radv, link->network->router_other_information); |
471 | if (r < 0) | |
472 | return r; | |
c555a358 | 473 | |
7003b114 | 474 | r = sd_radv_set_router_lifetime(link->radv, link->network->router_lifetime_usec); |
0943b3b7 YW |
475 | if (r < 0) |
476 | return r; | |
c555a358 | 477 | |
7003b114 | 478 | if (link->network->router_lifetime_usec > 0) { |
0943b3b7 YW |
479 | r = sd_radv_set_preference(link->radv, link->network->router_preference); |
480 | if (r < 0) | |
481 | return r; | |
482 | } | |
c555a358 | 483 | |
0943b3b7 | 484 | HASHMAP_FOREACH(p, link->network->prefixes_by_section) { |
2ac41679 YW |
485 | r = radv_set_prefix(link, p); |
486 | if (r < 0 && r != -EEXIST) | |
0943b3b7 YW |
487 | return r; |
488 | } | |
c555a358 | 489 | |
0943b3b7 | 490 | HASHMAP_FOREACH(q, link->network->route_prefixes_by_section) { |
2ac41679 YW |
491 | r = radv_set_route_prefix(link, q); |
492 | if (r < 0 && r != -EEXIST) | |
0943b3b7 YW |
493 | return r; |
494 | } | |
c555a358 | 495 | |
0943b3b7 | 496 | (void) radv_find_uplink(link, &uplink); |
c555a358 | 497 | |
0943b3b7 YW |
498 | r = radv_set_dns(link, uplink); |
499 | if (r < 0) | |
500 | return log_link_debug_errno(link, r, "Could not set RA DNS: %m"); | |
c555a358 | 501 | |
0943b3b7 YW |
502 | r = radv_set_domains(link, uplink); |
503 | if (r < 0) | |
504 | return log_link_debug_errno(link, r, "Could not set RA Domains: %m"); | |
c555a358 | 505 | |
0943b3b7 | 506 | return 0; |
c555a358 PF |
507 | } |
508 | ||
0943b3b7 YW |
509 | int radv_update_mac(Link *link) { |
510 | bool restart; | |
c555a358 PF |
511 | int r; |
512 | ||
0943b3b7 | 513 | assert(link); |
c555a358 | 514 | |
0943b3b7 YW |
515 | if (!link->radv) |
516 | return 0; | |
fd3ef936 | 517 | |
0943b3b7 | 518 | restart = sd_radv_is_running(link->radv); |
c555a358 | 519 | |
0943b3b7 YW |
520 | r = sd_radv_stop(link->radv); |
521 | if (r < 0) | |
522 | return r; | |
fd3ef936 | 523 | |
0943b3b7 YW |
524 | r = sd_radv_set_mac(link->radv, &link->hw_addr.ether); |
525 | if (r < 0) | |
526 | return r; | |
c555a358 | 527 | |
0943b3b7 YW |
528 | if (restart) { |
529 | r = sd_radv_start(link->radv); | |
530 | if (r < 0) | |
531 | return r; | |
c555a358 PF |
532 | } |
533 | ||
0943b3b7 YW |
534 | return 0; |
535 | } | |
c555a358 | 536 | |
0943b3b7 YW |
537 | static int radv_is_ready_to_configure(Link *link) { |
538 | bool needs_uplink = false; | |
539 | int r; | |
c555a358 | 540 | |
0943b3b7 YW |
541 | assert(link); |
542 | assert(link->network); | |
349a981d | 543 | |
0943b3b7 YW |
544 | if (!IN_SET(link->state, LINK_STATE_CONFIGURING, LINK_STATE_CONFIGURED)) |
545 | return false; | |
c555a358 | 546 | |
0943b3b7 YW |
547 | if (in6_addr_is_null(&link->ipv6ll_address)) |
548 | return false; | |
c555a358 | 549 | |
0943b3b7 YW |
550 | if (link->network->router_emit_dns && !link->network->router_dns) { |
551 | _cleanup_free_ struct in6_addr *dns = NULL; | |
552 | size_t n_dns; | |
c555a358 | 553 | |
0943b3b7 YW |
554 | r = network_get_ipv6_dns(link->network, &dns, &n_dns); |
555 | if (r < 0) | |
556 | return r; | |
c555a358 | 557 | |
0943b3b7 YW |
558 | needs_uplink = r == 0; |
559 | } | |
c555a358 | 560 | |
0943b3b7 YW |
561 | if (link->network->router_emit_domains && |
562 | !link->network->router_search_domains && | |
563 | !link->network->search_domains) | |
564 | needs_uplink = true; | |
565 | ||
566 | if (needs_uplink) { | |
567 | Link *uplink = NULL; | |
c555a358 | 568 | |
0943b3b7 YW |
569 | if (radv_find_uplink(link, &uplink) < 0) |
570 | return false; | |
c555a358 | 571 | |
0943b3b7 YW |
572 | if (uplink && !uplink->network) |
573 | return false; | |
574 | } | |
c555a358 | 575 | |
0943b3b7 YW |
576 | return true; |
577 | } | |
c555a358 | 578 | |
0943b3b7 YW |
579 | int request_process_radv(Request *req) { |
580 | Link *link; | |
581 | int r; | |
349a981d | 582 | |
0943b3b7 YW |
583 | assert(req); |
584 | assert(req->link); | |
585 | assert(req->type == REQUEST_TYPE_RADV); | |
c555a358 | 586 | |
0943b3b7 | 587 | link = req->link; |
c555a358 | 588 | |
0943b3b7 YW |
589 | r = radv_is_ready_to_configure(link); |
590 | if (r <= 0) | |
591 | return r; | |
5e2a51d5 | 592 | |
0943b3b7 YW |
593 | r = radv_configure(link); |
594 | if (r < 0) | |
595 | return log_link_warning_errno(link, r, "Failed to configure IPv6 Router Advertisement engine: %m"); | |
c555a358 | 596 | |
0943b3b7 | 597 | if (link_has_carrier(link)) { |
0f96a823 | 598 | r = radv_start(link); |
0943b3b7 YW |
599 | if (r < 0) |
600 | return log_link_warning_errno(link, r, "Failed to start IPv6 Router Advertisement engine: %m"); | |
601 | } | |
602 | ||
603 | log_link_debug(link, "IPv6 Router Advertisement engine is configured%s.", | |
604 | link_has_carrier(link) ? " and started." : ""); | |
605 | return 1; | |
c555a358 PF |
606 | } |
607 | ||
0943b3b7 YW |
608 | int link_request_radv(Link *link) { |
609 | int r; | |
63295b42 | 610 | |
0943b3b7 | 611 | assert(link); |
63295b42 | 612 | |
0943b3b7 YW |
613 | if (!link_radv_enabled(link)) |
614 | return 0; | |
63295b42 | 615 | |
0943b3b7 | 616 | if (link->radv) |
63295b42 | 617 | return 0; |
63295b42 | 618 | |
0943b3b7 YW |
619 | r = link_queue_request(link, REQUEST_TYPE_RADV, NULL, false, NULL, NULL, NULL); |
620 | if (r < 0) | |
621 | return log_link_warning_errno(link, r, "Failed to request configuring of the IPv6 Router Advertisement engine: %m"); | |
622 | ||
623 | log_link_debug(link, "Requested configuring of the IPv6 Router Advertisement engine."); | |
63295b42 YW |
624 | return 0; |
625 | } | |
626 | ||
0f96a823 YW |
627 | int radv_start(Link *link) { |
628 | int r; | |
629 | ||
630 | assert(link); | |
631 | assert(link->network); | |
632 | ||
633 | if (!link->radv) | |
634 | return 0; | |
635 | ||
636 | if (!link_has_carrier(link)) | |
637 | return 0; | |
638 | ||
639 | if (in6_addr_is_null(&link->ipv6ll_address)) | |
640 | return 0; | |
641 | ||
642 | if (sd_radv_is_running(link->radv)) | |
643 | return 0; | |
644 | ||
a27588d4 YW |
645 | if (link->network->dhcp_pd_announce) { |
646 | r = dhcp_request_prefix_delegation(link); | |
0f96a823 | 647 | if (r < 0) |
a27588d4 | 648 | return log_link_debug_errno(link, r, "Failed to request DHCP delegated subnet prefix: %m"); |
0f96a823 YW |
649 | } |
650 | ||
651 | log_link_debug(link, "Starting IPv6 Router Advertisements"); | |
652 | return sd_radv_start(link->radv); | |
653 | } | |
654 | ||
0943b3b7 YW |
655 | int radv_add_prefix( |
656 | Link *link, | |
657 | const struct in6_addr *prefix, | |
658 | uint8_t prefix_len, | |
16bc8635 YW |
659 | usec_t lifetime_preferred_usec, |
660 | usec_t lifetime_valid_usec) { | |
0943b3b7 YW |
661 | |
662 | _cleanup_(sd_radv_prefix_unrefp) sd_radv_prefix *p = NULL; | |
95081e08 | 663 | int r; |
091214b6 PF |
664 | |
665 | assert(link); | |
091214b6 | 666 | |
0943b3b7 YW |
667 | if (!link->radv) |
668 | return 0; | |
bc9e40c9 | 669 | |
0943b3b7 | 670 | r = sd_radv_prefix_new(&p); |
091214b6 PF |
671 | if (r < 0) |
672 | return r; | |
673 | ||
0943b3b7 | 674 | r = sd_radv_prefix_set_prefix(p, prefix, prefix_len); |
091214b6 PF |
675 | if (r < 0) |
676 | return r; | |
677 | ||
c9e2c2da | 678 | r = sd_radv_prefix_set_preferred_lifetime(p, RADV_DEFAULT_PREFERRED_LIFETIME_USEC, lifetime_preferred_usec); |
091214b6 PF |
679 | if (r < 0) |
680 | return r; | |
681 | ||
c9e2c2da | 682 | r = sd_radv_prefix_set_valid_lifetime(p, RADV_DEFAULT_VALID_LIFETIME_USEC, lifetime_valid_usec); |
091214b6 PF |
683 | if (r < 0) |
684 | return r; | |
685 | ||
95e104e0 | 686 | r = sd_radv_add_prefix(link->radv, p); |
0943b3b7 | 687 | if (r < 0 && r != -EEXIST) |
091214b6 PF |
688 | return r; |
689 | ||
0943b3b7 YW |
690 | return 0; |
691 | } | |
091214b6 | 692 | |
2110040b YW |
693 | static int prefix_section_verify(Prefix *p) { |
694 | assert(p); | |
695 | ||
696 | if (section_is_invalid(p->section)) | |
697 | return -EINVAL; | |
698 | ||
699 | if (in6_addr_is_null(&p->prefix)) | |
700 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
701 | "%s: [IPv6Prefix] section without Prefix= field configured, " | |
702 | "or specified prefix is the null address. " | |
703 | "Ignoring [IPv6Prefix] section from line %u.", | |
704 | p->section->filename, p->section->line); | |
705 | ||
706 | if (p->prefixlen < 3 || p->prefixlen > 128) | |
707 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
708 | "%s: Invalid prefix length %u is specified in [IPv6Prefix] section. " | |
709 | "Valid range is 3…128. Ignoring [IPv6Prefix] section from line %u.", | |
710 | p->section->filename, p->prefixlen, p->section->line); | |
711 | ||
712 | if (p->prefixlen > 64) { | |
713 | _cleanup_free_ char *str = NULL; | |
714 | ||
715 | if (p->assign) | |
716 | (void) in6_addr_prefix_to_string(&p->prefix, p->prefixlen, &str); | |
717 | ||
718 | log_info("%s: Unusual prefix length %u (> 64) is specified in [IPv6Prefix] section from line %u%s%s.", | |
719 | p->section->filename, p->prefixlen, p->section->line, | |
720 | p->assign ? ", refusing to assign an address in " : "", | |
721 | p->assign ? strna(str) : ""); | |
722 | ||
723 | p->assign = false; | |
724 | } | |
725 | ||
726 | if (p->valid_lifetime == 0) | |
727 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
728 | "%s: The valid lifetime of prefix cannot be zero. " | |
729 | "Ignoring [IPv6Prefix] section from line %u.", | |
730 | p->section->filename, p->section->line); | |
731 | ||
732 | if (p->preferred_lifetime > p->valid_lifetime) | |
733 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
734 | "%s: The preferred lifetime %s is longer than the valid lifetime %s. " | |
735 | "Ignoring [IPv6Prefix] section from line %u.", | |
736 | p->section->filename, | |
737 | FORMAT_TIMESPAN(p->preferred_lifetime, USEC_PER_SEC), | |
738 | FORMAT_TIMESPAN(p->valid_lifetime, USEC_PER_SEC), | |
739 | p->section->line); | |
740 | ||
741 | return 0; | |
742 | } | |
743 | ||
0943b3b7 | 744 | void network_drop_invalid_prefixes(Network *network) { |
2110040b | 745 | Prefix *p; |
2075e596 | 746 | |
0943b3b7 YW |
747 | assert(network); |
748 | ||
2110040b YW |
749 | HASHMAP_FOREACH(p, network->prefixes_by_section) |
750 | if (prefix_section_verify(p) < 0) | |
751 | prefix_free(p); | |
752 | } | |
753 | ||
754 | static int route_prefix_section_verify(RoutePrefix *p) { | |
755 | if (section_is_invalid(p->section)) | |
756 | return -EINVAL; | |
757 | ||
758 | if (p->prefixlen > 128) | |
759 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
760 | "%s: Invalid prefix length %u is specified in [IPv6RoutePrefix] section. " | |
761 | "Valid range is 0…128. Ignoring [IPv6RoutePrefix] section from line %u.", | |
762 | p->section->filename, p->prefixlen, p->section->line); | |
763 | ||
764 | if (p->lifetime == 0) | |
765 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
766 | "%s: The lifetime of route cannot be zero. " | |
767 | "Ignoring [IPv6RoutePrefix] section from line %u.", | |
768 | p->section->filename, p->section->line); | |
769 | ||
770 | return 0; | |
0943b3b7 YW |
771 | } |
772 | ||
773 | void network_drop_invalid_route_prefixes(Network *network) { | |
2110040b | 774 | RoutePrefix *p; |
0943b3b7 YW |
775 | |
776 | assert(network); | |
777 | ||
2110040b YW |
778 | HASHMAP_FOREACH(p, network->route_prefixes_by_section) |
779 | if (route_prefix_section_verify(p) < 0) | |
780 | route_prefix_free(p); | |
0943b3b7 YW |
781 | } |
782 | ||
783 | int config_parse_prefix( | |
784 | const char *unit, | |
785 | const char *filename, | |
786 | unsigned line, | |
787 | const char *section, | |
788 | unsigned section_line, | |
789 | const char *lvalue, | |
790 | int ltype, | |
791 | const char *rvalue, | |
792 | void *data, | |
793 | void *userdata) { | |
794 | ||
0943b3b7 | 795 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 YW |
796 | Network *network = userdata; |
797 | union in_addr_union a; | |
0943b3b7 YW |
798 | int r; |
799 | ||
800 | assert(filename); | |
801 | assert(section); | |
802 | assert(lvalue); | |
803 | assert(rvalue); | |
2ac41679 | 804 | assert(userdata); |
0943b3b7 YW |
805 | |
806 | r = prefix_new_static(network, filename, section_line, &p); | |
091214b6 | 807 | if (r < 0) |
0943b3b7 | 808 | return log_oom(); |
091214b6 | 809 | |
2ac41679 | 810 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &a, &p->prefixlen); |
0943b3b7 | 811 | if (r < 0) { |
2ac41679 YW |
812 | log_syntax(unit, LOG_WARNING, filename, line, r, |
813 | "Prefix is invalid, ignoring assignment: %s", rvalue); | |
0943b3b7 | 814 | return 0; |
8a08bbfc | 815 | } |
cf72568a YW |
816 | |
817 | (void) in6_addr_mask(&a.in6, p->prefixlen); | |
2ac41679 | 818 | p->prefix = a.in6; |
203d4df5 | 819 | |
2ac41679 | 820 | TAKE_PTR(p); |
0943b3b7 YW |
821 | return 0; |
822 | } | |
a254fab2 | 823 | |
2ac41679 | 824 | int config_parse_prefix_boolean( |
0943b3b7 YW |
825 | const char *unit, |
826 | const char *filename, | |
827 | unsigned line, | |
828 | const char *section, | |
829 | unsigned section_line, | |
830 | const char *lvalue, | |
831 | int ltype, | |
832 | const char *rvalue, | |
833 | void *data, | |
834 | void *userdata) { | |
a254fab2 | 835 | |
0943b3b7 | 836 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 | 837 | Network *network = userdata; |
0943b3b7 YW |
838 | int r; |
839 | ||
840 | assert(filename); | |
841 | assert(section); | |
842 | assert(lvalue); | |
843 | assert(rvalue); | |
2ac41679 | 844 | assert(userdata); |
0943b3b7 YW |
845 | |
846 | r = prefix_new_static(network, filename, section_line, &p); | |
a254fab2 | 847 | if (r < 0) |
0943b3b7 YW |
848 | return log_oom(); |
849 | ||
850 | r = parse_boolean(rvalue); | |
851 | if (r < 0) { | |
2ac41679 YW |
852 | log_syntax(unit, LOG_WARNING, filename, line, r, |
853 | "Failed to parse %s=, ignoring assignment: %s", lvalue, rvalue); | |
0943b3b7 YW |
854 | return 0; |
855 | } | |
856 | ||
857 | if (streq(lvalue, "OnLink")) | |
2ac41679 | 858 | p->onlink = r; |
0943b3b7 | 859 | else if (streq(lvalue, "AddressAutoconfiguration")) |
2ac41679 YW |
860 | p->address_auto_configuration = r; |
861 | else if (streq(lvalue, "Assign")) | |
862 | p->assign = r; | |
863 | else | |
864 | assert_not_reached(); | |
a254fab2 | 865 | |
2ac41679 | 866 | TAKE_PTR(p); |
fd3ef936 | 867 | return 0; |
091214b6 | 868 | } |
ca5ad760 | 869 | |
0943b3b7 YW |
870 | int config_parse_prefix_lifetime( |
871 | const char *unit, | |
872 | const char *filename, | |
873 | unsigned line, | |
874 | const char *section, | |
875 | unsigned section_line, | |
876 | const char *lvalue, | |
877 | int ltype, | |
878 | const char *rvalue, | |
879 | void *data, | |
880 | void *userdata) { | |
881 | ||
0943b3b7 | 882 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 | 883 | Network *network = userdata; |
0943b3b7 | 884 | usec_t usec; |
be9363cc YW |
885 | int r; |
886 | ||
0943b3b7 YW |
887 | assert(filename); |
888 | assert(section); | |
889 | assert(lvalue); | |
890 | assert(rvalue); | |
2ac41679 | 891 | assert(userdata); |
be9363cc | 892 | |
0943b3b7 | 893 | r = prefix_new_static(network, filename, section_line, &p); |
a391901e | 894 | if (r < 0) |
0943b3b7 | 895 | return log_oom(); |
be9363cc | 896 | |
0943b3b7 YW |
897 | r = parse_sec(rvalue, &usec); |
898 | if (r < 0) { | |
2ac41679 YW |
899 | log_syntax(unit, LOG_WARNING, filename, line, r, |
900 | "Lifetime is invalid, ignoring assignment: %s", rvalue); | |
0943b3b7 YW |
901 | return 0; |
902 | } | |
be9363cc | 903 | |
2ac41679 YW |
904 | if (usec != USEC_INFINITY && DIV_ROUND_UP(usec, USEC_PER_SEC) >= UINT32_MAX) { |
905 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
906 | "Lifetime is too long, ignoring assignment: %s", rvalue); | |
0943b3b7 | 907 | return 0; |
be9363cc YW |
908 | } |
909 | ||
2ac41679 YW |
910 | if (streq(lvalue, "PreferredLifetimeSec")) |
911 | p->preferred_lifetime = usec; | |
912 | else if (streq(lvalue, "ValidLifetimeSec")) | |
913 | p->valid_lifetime = usec; | |
914 | else | |
915 | assert_not_reached(); | |
63295b42 | 916 | |
2ac41679 | 917 | TAKE_PTR(p); |
0943b3b7 | 918 | return 0; |
a254fab2 YW |
919 | } |
920 | ||
0943b3b7 YW |
921 | int config_parse_prefix_metric( |
922 | const char *unit, | |
923 | const char *filename, | |
924 | unsigned line, | |
925 | const char *section, | |
926 | unsigned section_line, | |
927 | const char *lvalue, | |
928 | int ltype, | |
929 | const char *rvalue, | |
930 | void *data, | |
931 | void *userdata) { | |
a254fab2 | 932 | |
0943b3b7 | 933 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
2ac41679 | 934 | Network *network = userdata; |
0943b3b7 | 935 | int r; |
a254fab2 | 936 | |
0943b3b7 YW |
937 | assert(filename); |
938 | assert(section); | |
939 | assert(lvalue); | |
940 | assert(rvalue); | |
2ac41679 | 941 | assert(userdata); |
a254fab2 | 942 | |
0943b3b7 | 943 | r = prefix_new_static(network, filename, section_line, &p); |
a254fab2 | 944 | if (r < 0) |
0943b3b7 | 945 | return log_oom(); |
a254fab2 | 946 | |
0943b3b7 YW |
947 | r = safe_atou32(rvalue, &p->route_metric); |
948 | if (r < 0) { | |
949 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
950 | "Failed to parse %s=, ignoring assignment: %s", | |
951 | lvalue, rvalue); | |
952 | return 0; | |
a254fab2 YW |
953 | } |
954 | ||
0943b3b7 | 955 | TAKE_PTR(p); |
0943b3b7 | 956 | return 0; |
a254fab2 YW |
957 | } |
958 | ||
e609cd06 YW |
959 | int config_parse_prefix_token( |
960 | const char *unit, | |
961 | const char *filename, | |
962 | unsigned line, | |
963 | const char *section, | |
964 | unsigned section_line, | |
965 | const char *lvalue, | |
966 | int ltype, | |
967 | const char *rvalue, | |
968 | void *data, | |
969 | void *userdata) { | |
970 | ||
971 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; | |
972 | Network *network = userdata; | |
973 | int r; | |
974 | ||
975 | assert(filename); | |
976 | assert(section); | |
977 | assert(lvalue); | |
978 | assert(rvalue); | |
979 | assert(userdata); | |
980 | ||
981 | r = prefix_new_static(network, filename, section_line, &p); | |
982 | if (r < 0) | |
983 | return log_oom(); | |
984 | ||
985 | r = config_parse_address_generation_type(unit, filename, line, section, section_line, | |
986 | lvalue, ltype, rvalue, &p->tokens, userdata); | |
987 | if (r < 0) | |
988 | return r; | |
989 | ||
990 | TAKE_PTR(p); | |
991 | return 0; | |
992 | } | |
993 | ||
0943b3b7 YW |
994 | int config_parse_route_prefix( |
995 | const char *unit, | |
996 | const char *filename, | |
997 | unsigned line, | |
998 | const char *section, | |
999 | unsigned section_line, | |
1000 | const char *lvalue, | |
1001 | int ltype, | |
1002 | const char *rvalue, | |
1003 | void *data, | |
1004 | void *userdata) { | |
1005 | ||
0943b3b7 | 1006 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; |
2ac41679 YW |
1007 | Network *network = userdata; |
1008 | union in_addr_union a; | |
a254fab2 YW |
1009 | int r; |
1010 | ||
0943b3b7 YW |
1011 | assert(filename); |
1012 | assert(section); | |
1013 | assert(lvalue); | |
1014 | assert(rvalue); | |
2ac41679 | 1015 | assert(userdata); |
a254fab2 | 1016 | |
0943b3b7 YW |
1017 | r = route_prefix_new_static(network, filename, section_line, &p); |
1018 | if (r < 0) | |
1019 | return log_oom(); | |
1020 | ||
2ac41679 | 1021 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &a, &p->prefixlen); |
0943b3b7 | 1022 | if (r < 0) { |
2ac41679 YW |
1023 | log_syntax(unit, LOG_WARNING, filename, line, r, |
1024 | "Route prefix is invalid, ignoring assignment: %s", rvalue); | |
a254fab2 | 1025 | return 0; |
0943b3b7 | 1026 | } |
cf72568a YW |
1027 | |
1028 | (void) in6_addr_mask(&a.in6, p->prefixlen); | |
2ac41679 | 1029 | p->prefix = a.in6; |
a254fab2 | 1030 | |
2ac41679 | 1031 | TAKE_PTR(p); |
a254fab2 YW |
1032 | return 0; |
1033 | } | |
1034 | ||
0943b3b7 YW |
1035 | int config_parse_route_prefix_lifetime( |
1036 | const char *unit, | |
1037 | const char *filename, | |
1038 | unsigned line, | |
1039 | const char *section, | |
1040 | unsigned section_line, | |
1041 | const char *lvalue, | |
1042 | int ltype, | |
1043 | const char *rvalue, | |
1044 | void *data, | |
1045 | void *userdata) { | |
a8d4a210 | 1046 | |
0943b3b7 | 1047 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; |
2ac41679 | 1048 | Network *network = userdata; |
0943b3b7 | 1049 | usec_t usec; |
1d596fde YW |
1050 | int r; |
1051 | ||
0943b3b7 YW |
1052 | assert(filename); |
1053 | assert(section); | |
1054 | assert(lvalue); | |
1055 | assert(rvalue); | |
2ac41679 | 1056 | assert(userdata); |
1d596fde | 1057 | |
0943b3b7 | 1058 | r = route_prefix_new_static(network, filename, section_line, &p); |
1d596fde | 1059 | if (r < 0) |
0943b3b7 | 1060 | return log_oom(); |
1d596fde | 1061 | |
0943b3b7 YW |
1062 | r = parse_sec(rvalue, &usec); |
1063 | if (r < 0) { | |
1064 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1065 | "Route lifetime is invalid, ignoring assignment: %s", rvalue); | |
1066 | return 0; | |
1067 | } | |
1d596fde | 1068 | |
2ac41679 YW |
1069 | if (usec != USEC_INFINITY && DIV_ROUND_UP(usec, USEC_PER_SEC) >= UINT32_MAX) { |
1070 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1071 | "Lifetime is too long, ignoring assignment: %s", rvalue); | |
0943b3b7 YW |
1072 | return 0; |
1073 | } | |
1d596fde | 1074 | |
2ac41679 | 1075 | p->lifetime = usec; |
1d596fde | 1076 | |
2ac41679 | 1077 | TAKE_PTR(p); |
1d596fde YW |
1078 | return 0; |
1079 | } | |
1080 | ||
ca5ad760 YW |
1081 | int config_parse_radv_dns( |
1082 | const char *unit, | |
1083 | const char *filename, | |
1084 | unsigned line, | |
1085 | const char *section, | |
1086 | unsigned section_line, | |
1087 | const char *lvalue, | |
1088 | int ltype, | |
1089 | const char *rvalue, | |
1090 | void *data, | |
1091 | void *userdata) { | |
1092 | ||
1093 | Network *n = data; | |
ca5ad760 YW |
1094 | int r; |
1095 | ||
1096 | assert(filename); | |
1097 | assert(lvalue); | |
1098 | assert(rvalue); | |
1099 | ||
a3c1a949 YW |
1100 | if (isempty(rvalue)) { |
1101 | n->n_router_dns = 0; | |
1102 | n->router_dns = mfree(n->router_dns); | |
1103 | return 0; | |
1104 | } | |
1105 | ||
d96edb2c | 1106 | for (const char *p = rvalue;;) { |
ca5ad760 YW |
1107 | _cleanup_free_ char *w = NULL; |
1108 | union in_addr_union a; | |
1109 | ||
1110 | r = extract_first_word(&p, &w, NULL, 0); | |
1111 | if (r == -ENOMEM) | |
1112 | return log_oom(); | |
1113 | if (r < 0) { | |
d96edb2c | 1114 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1115 | "Failed to extract word, ignoring: %s", rvalue); |
1116 | return 0; | |
1117 | } | |
1118 | if (r == 0) | |
d96edb2c | 1119 | return 0; |
ca5ad760 | 1120 | |
fd3ef936 YW |
1121 | if (streq(w, "_link_local")) |
1122 | a = IN_ADDR_NULL; | |
1123 | else { | |
1124 | r = in_addr_from_string(AF_INET6, w, &a); | |
1125 | if (r < 0) { | |
d96edb2c | 1126 | log_syntax(unit, LOG_WARNING, filename, line, r, |
fd3ef936 YW |
1127 | "Failed to parse DNS server address, ignoring: %s", w); |
1128 | continue; | |
1129 | } | |
ca5ad760 | 1130 | |
fd3ef936 | 1131 | if (in_addr_is_null(AF_INET6, &a)) { |
d96edb2c | 1132 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
fd3ef936 YW |
1133 | "DNS server address is null, ignoring: %s", w); |
1134 | continue; | |
1135 | } | |
1136 | } | |
ca5ad760 | 1137 | |
fd3ef936 YW |
1138 | struct in6_addr *m; |
1139 | m = reallocarray(n->router_dns, n->n_router_dns + 1, sizeof(struct in6_addr)); | |
1140 | if (!m) | |
1141 | return log_oom(); | |
ca5ad760 | 1142 | |
fd3ef936 YW |
1143 | m[n->n_router_dns++] = a.in6; |
1144 | n->router_dns = m; | |
ca5ad760 | 1145 | } |
ca5ad760 YW |
1146 | } |
1147 | ||
1148 | int config_parse_radv_search_domains( | |
1149 | const char *unit, | |
1150 | const char *filename, | |
1151 | unsigned line, | |
1152 | const char *section, | |
1153 | unsigned section_line, | |
1154 | const char *lvalue, | |
1155 | int ltype, | |
1156 | const char *rvalue, | |
1157 | void *data, | |
1158 | void *userdata) { | |
1159 | ||
1160 | Network *n = data; | |
ca5ad760 YW |
1161 | int r; |
1162 | ||
1163 | assert(filename); | |
1164 | assert(lvalue); | |
1165 | assert(rvalue); | |
1166 | ||
a3c1a949 YW |
1167 | if (isempty(rvalue)) { |
1168 | n->router_search_domains = ordered_set_free(n->router_search_domains); | |
1169 | return 0; | |
1170 | } | |
1171 | ||
d96edb2c | 1172 | for (const char *p = rvalue;;) { |
ca5ad760 YW |
1173 | _cleanup_free_ char *w = NULL, *idna = NULL; |
1174 | ||
1175 | r = extract_first_word(&p, &w, NULL, 0); | |
1176 | if (r == -ENOMEM) | |
1177 | return log_oom(); | |
1178 | if (r < 0) { | |
d96edb2c | 1179 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1180 | "Failed to extract word, ignoring: %s", rvalue); |
1181 | return 0; | |
1182 | } | |
1183 | if (r == 0) | |
d96edb2c | 1184 | return 0; |
ca5ad760 YW |
1185 | |
1186 | r = dns_name_apply_idna(w, &idna); | |
1187 | if (r < 0) { | |
d96edb2c | 1188 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1189 | "Failed to apply IDNA to domain name '%s', ignoring: %m", w); |
1190 | continue; | |
1191 | } else if (r == 0) | |
1192 | /* transfer ownership to simplify subsequent operations */ | |
1193 | idna = TAKE_PTR(w); | |
1194 | ||
5e276772 | 1195 | r = ordered_set_ensure_allocated(&n->router_search_domains, &string_hash_ops_free); |
ca5ad760 | 1196 | if (r < 0) |
d96edb2c | 1197 | return log_oom(); |
ca5ad760 YW |
1198 | |
1199 | r = ordered_set_consume(n->router_search_domains, TAKE_PTR(idna)); | |
1200 | if (r < 0) | |
d96edb2c | 1201 | return log_oom(); |
ca5ad760 | 1202 | } |
ca5ad760 YW |
1203 | } |
1204 | ||
1205 | static const char * const radv_prefix_delegation_table[_RADV_PREFIX_DELEGATION_MAX] = { | |
a8d4a210 | 1206 | [RADV_PREFIX_DELEGATION_NONE] = "no", |
ca5ad760 | 1207 | [RADV_PREFIX_DELEGATION_STATIC] = "static", |
a8d4a210 YW |
1208 | [RADV_PREFIX_DELEGATION_DHCP6] = "dhcpv6", |
1209 | [RADV_PREFIX_DELEGATION_BOTH] = "yes", | |
ca5ad760 YW |
1210 | }; |
1211 | ||
1212 | DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN( | |
1213 | radv_prefix_delegation, | |
1214 | RADVPrefixDelegation, | |
1215 | RADV_PREFIX_DELEGATION_BOTH); | |
1216 | ||
27ff0490 YW |
1217 | int config_parse_router_prefix_delegation( |
1218 | const char *unit, | |
1219 | const char *filename, | |
1220 | unsigned line, | |
1221 | const char *section, | |
1222 | unsigned section_line, | |
1223 | const char *lvalue, | |
1224 | int ltype, | |
1225 | const char *rvalue, | |
1226 | void *data, | |
1227 | void *userdata) { | |
1228 | ||
1229 | RADVPrefixDelegation val, *ra = data; | |
1230 | int r; | |
1231 | ||
1232 | assert(filename); | |
1233 | assert(lvalue); | |
1234 | assert(rvalue); | |
1235 | assert(data); | |
1236 | ||
1237 | if (streq(lvalue, "IPv6SendRA")) { | |
1238 | r = parse_boolean(rvalue); | |
1239 | if (r < 0) { | |
1240 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1241 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); | |
1242 | return 0; | |
1243 | } | |
1244 | ||
1245 | /* When IPv6SendRA= is enabled, only static prefixes are sent by default, and users | |
1246 | * need to explicitly enable DHCPv6PrefixDelegation=. */ | |
1247 | *ra = r ? RADV_PREFIX_DELEGATION_STATIC : RADV_PREFIX_DELEGATION_NONE; | |
1248 | return 0; | |
1249 | } | |
1250 | ||
1251 | /* For backward compatibility */ | |
1252 | val = radv_prefix_delegation_from_string(rvalue); | |
1253 | if (val < 0) { | |
b98680b2 | 1254 | log_syntax(unit, LOG_WARNING, filename, line, val, |
27ff0490 YW |
1255 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); |
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | *ra = val; | |
1260 | return 0; | |
1261 | } | |
a8d4a210 | 1262 | |
4f1ac4a3 YW |
1263 | int config_parse_router_lifetime( |
1264 | const char *unit, | |
1265 | const char *filename, | |
1266 | unsigned line, | |
1267 | const char *section, | |
1268 | unsigned section_line, | |
1269 | const char *lvalue, | |
1270 | int ltype, | |
1271 | const char *rvalue, | |
1272 | void *data, | |
1273 | void *userdata) { | |
1274 | ||
1275 | usec_t usec, *lifetime = data; | |
1276 | int r; | |
1277 | ||
1278 | assert(filename); | |
1279 | assert(section); | |
1280 | assert(lvalue); | |
1281 | assert(rvalue); | |
1282 | assert(data); | |
1283 | ||
1284 | if (isempty(rvalue)) { | |
1285 | *lifetime = RADV_DEFAULT_ROUTER_LIFETIME_USEC; | |
1286 | return 0; | |
1287 | } | |
1288 | ||
1289 | r = parse_sec(rvalue, &usec); | |
1290 | if (r < 0) { | |
1291 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1292 | "Failed to parse router lifetime, ignoring assignment: %s", rvalue); | |
1293 | return 0; | |
1294 | } | |
1295 | if (usec > 0) { | |
1296 | if (usec < RADV_MIN_ROUTER_LIFETIME_USEC) { | |
1297 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1298 | "Router lifetime %s is too short, using %s.", | |
1299 | FORMAT_TIMESPAN(usec, USEC_PER_SEC), | |
1300 | FORMAT_TIMESPAN(RADV_MIN_ROUTER_LIFETIME_USEC, USEC_PER_SEC)); | |
1301 | usec = RADV_MIN_ROUTER_LIFETIME_USEC; | |
1302 | } else if (usec > RADV_MAX_ROUTER_LIFETIME_USEC) { | |
1303 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1304 | "Router lifetime %s is too large, using %s.", | |
1305 | FORMAT_TIMESPAN(usec, USEC_PER_SEC), | |
1306 | FORMAT_TIMESPAN(RADV_MAX_ROUTER_LIFETIME_USEC, USEC_PER_SEC)); | |
1307 | usec = RADV_MAX_ROUTER_LIFETIME_USEC; | |
1308 | } | |
1309 | } | |
1310 | ||
1311 | *lifetime = usec; | |
1312 | return 0; | |
1313 | } | |
1314 | ||
a8d4a210 YW |
1315 | int config_parse_router_preference( |
1316 | const char *unit, | |
1317 | const char *filename, | |
1318 | unsigned line, | |
1319 | const char *section, | |
1320 | unsigned section_line, | |
1321 | const char *lvalue, | |
1322 | int ltype, | |
1323 | const char *rvalue, | |
1324 | void *data, | |
1325 | void *userdata) { | |
1326 | ||
ca5ad760 YW |
1327 | Network *network = userdata; |
1328 | ||
1329 | assert(filename); | |
1330 | assert(section); | |
1331 | assert(lvalue); | |
1332 | assert(rvalue); | |
1333 | assert(data); | |
1334 | ||
1335 | if (streq(rvalue, "high")) | |
1336 | network->router_preference = SD_NDISC_PREFERENCE_HIGH; | |
1337 | else if (STR_IN_SET(rvalue, "medium", "normal", "default")) | |
1338 | network->router_preference = SD_NDISC_PREFERENCE_MEDIUM; | |
1339 | else if (streq(rvalue, "low")) | |
1340 | network->router_preference = SD_NDISC_PREFERENCE_LOW; | |
1341 | else | |
d96edb2c YW |
1342 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1343 | "Invalid router preference, ignoring assignment: %s", rvalue); | |
ca5ad760 YW |
1344 | |
1345 | return 0; | |
1346 | } |