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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" |
b5ce4047 | 12 | #include "networkd-link.h" |
c555a358 | 13 | #include "networkd-manager.h" |
b5ce4047 | 14 | #include "networkd-network.h" |
a254fab2 | 15 | #include "networkd-queue.h" |
091214b6 | 16 | #include "networkd-radv.h" |
3b6a3bde | 17 | #include "networkd-route.h" |
6e849e95 | 18 | #include "parse-util.h" |
6e849e95 | 19 | #include "string-util.h" |
6b1dec66 | 20 | #include "string-table.h" |
51517f9e | 21 | #include "strv.h" |
6e849e95 | 22 | |
0943b3b7 YW |
23 | void network_adjust_radv(Network *network) { |
24 | assert(network); | |
25 | ||
26 | /* After this function is called, network->router_prefix_delegation can be treated as a boolean. */ | |
27 | ||
28 | if (network->dhcp6_pd < 0) | |
29 | /* For backward compatibility. */ | |
30 | network->dhcp6_pd = FLAGS_SET(network->router_prefix_delegation, RADV_PREFIX_DELEGATION_DHCP6); | |
31 | ||
32 | if (!FLAGS_SET(network->link_local, ADDRESS_FAMILY_IPV6)) { | |
33 | if (network->router_prefix_delegation != RADV_PREFIX_DELEGATION_NONE) | |
34 | log_warning("%s: IPv6PrefixDelegation= is enabled but IPv6 link local addressing is disabled. " | |
35 | "Disabling IPv6PrefixDelegation=.", network->filename); | |
36 | ||
37 | network->router_prefix_delegation = RADV_PREFIX_DELEGATION_NONE; | |
38 | } | |
39 | ||
40 | if (network->router_prefix_delegation == RADV_PREFIX_DELEGATION_NONE) { | |
41 | network->n_router_dns = 0; | |
42 | network->router_dns = mfree(network->router_dns); | |
43 | network->router_search_domains = ordered_set_free(network->router_search_domains); | |
44 | } | |
45 | ||
46 | if (!FLAGS_SET(network->router_prefix_delegation, RADV_PREFIX_DELEGATION_STATIC)) { | |
47 | network->prefixes_by_section = hashmap_free_with_destructor(network->prefixes_by_section, prefix_free); | |
48 | network->route_prefixes_by_section = hashmap_free_with_destructor(network->route_prefixes_by_section, route_prefix_free); | |
49 | } | |
50 | } | |
51 | ||
52 | static bool link_radv_enabled(Link *link) { | |
53 | assert(link); | |
54 | ||
55 | if (!link_ipv6ll_enabled(link)) | |
56 | return false; | |
57 | ||
58 | return link->network->router_prefix_delegation; | |
59 | } | |
60 | ||
064dfb05 | 61 | Prefix *prefix_free(Prefix *prefix) { |
6e849e95 | 62 | if (!prefix) |
064dfb05 | 63 | return NULL; |
6e849e95 PF |
64 | |
65 | if (prefix->network) { | |
ecb0e85e YW |
66 | assert(prefix->section); |
67 | hashmap_remove(prefix->network->prefixes_by_section, prefix->section); | |
6e849e95 PF |
68 | } |
69 | ||
ecee0abe | 70 | network_config_section_free(prefix->section); |
471e126b | 71 | sd_radv_prefix_unref(prefix->radv_prefix); |
6e849e95 | 72 | |
064dfb05 | 73 | return mfree(prefix); |
6e849e95 PF |
74 | } |
75 | ||
064dfb05 YW |
76 | DEFINE_NETWORK_SECTION_FUNCTIONS(Prefix, prefix_free); |
77 | ||
95081e08 | 78 | static int prefix_new(Prefix **ret) { |
15b8332e | 79 | _cleanup_(prefix_freep) Prefix *prefix = NULL; |
6e849e95 PF |
80 | |
81 | prefix = new0(Prefix, 1); | |
82 | if (!prefix) | |
83 | return -ENOMEM; | |
84 | ||
85 | if (sd_radv_prefix_new(&prefix->radv_prefix) < 0) | |
86 | return -ENOMEM; | |
87 | ||
ae2a15bc | 88 | *ret = TAKE_PTR(prefix); |
6e849e95 PF |
89 | |
90 | return 0; | |
91 | } | |
92 | ||
a8d4a210 | 93 | static int prefix_new_static(Network *network, const char *filename, unsigned section_line, Prefix **ret) { |
8e766630 LP |
94 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
95 | _cleanup_(prefix_freep) Prefix *prefix = NULL; | |
6e849e95 PF |
96 | int r; |
97 | ||
98 | assert(network); | |
99 | assert(ret); | |
ecb0e85e YW |
100 | assert(filename); |
101 | assert(section_line > 0); | |
6e849e95 | 102 | |
ecb0e85e YW |
103 | r = network_config_section_new(filename, section_line, &n); |
104 | if (r < 0) | |
105 | return r; | |
6e849e95 | 106 | |
ecb0e85e YW |
107 | prefix = hashmap_get(network->prefixes_by_section, n); |
108 | if (prefix) { | |
109 | *ret = TAKE_PTR(prefix); | |
110 | return 0; | |
6e849e95 PF |
111 | } |
112 | ||
113 | r = prefix_new(&prefix); | |
114 | if (r < 0) | |
115 | return r; | |
116 | ||
0f7f2769 | 117 | prefix->network = network; |
ecb0e85e | 118 | prefix->section = TAKE_PTR(n); |
6e849e95 | 119 | |
b9eea0a7 | 120 | r = hashmap_ensure_put(&network->prefixes_by_section, &network_config_hash_ops, prefix->section, prefix); |
ecb0e85e YW |
121 | if (r < 0) |
122 | return r; | |
6e849e95 | 123 | |
1cc6c93a | 124 | *ret = TAKE_PTR(prefix); |
6e849e95 PF |
125 | |
126 | return 0; | |
127 | } | |
128 | ||
064dfb05 | 129 | RoutePrefix *route_prefix_free(RoutePrefix *prefix) { |
203d4df5 | 130 | if (!prefix) |
064dfb05 | 131 | return NULL; |
203d4df5 SS |
132 | |
133 | if (prefix->network) { | |
ecb0e85e YW |
134 | assert(prefix->section); |
135 | hashmap_remove(prefix->network->route_prefixes_by_section, prefix->section); | |
203d4df5 SS |
136 | } |
137 | ||
138 | network_config_section_free(prefix->section); | |
471e126b | 139 | sd_radv_route_prefix_unref(prefix->radv_route_prefix); |
203d4df5 | 140 | |
064dfb05 YW |
141 | return mfree(prefix); |
142 | } | |
143 | ||
144 | DEFINE_NETWORK_SECTION_FUNCTIONS(RoutePrefix, route_prefix_free); | |
145 | ||
146 | static int route_prefix_new(RoutePrefix **ret) { | |
147 | _cleanup_(route_prefix_freep) RoutePrefix *prefix = NULL; | |
148 | ||
149 | prefix = new0(RoutePrefix, 1); | |
150 | if (!prefix) | |
151 | return -ENOMEM; | |
152 | ||
153 | if (sd_radv_route_prefix_new(&prefix->radv_route_prefix) < 0) | |
154 | return -ENOMEM; | |
155 | ||
156 | *ret = TAKE_PTR(prefix); | |
157 | ||
158 | return 0; | |
203d4df5 SS |
159 | } |
160 | ||
a8d4a210 | 161 | static int route_prefix_new_static(Network *network, const char *filename, unsigned section_line, RoutePrefix **ret) { |
203d4df5 | 162 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
95081e08 | 163 | _cleanup_(route_prefix_freep) RoutePrefix *prefix = NULL; |
203d4df5 SS |
164 | int r; |
165 | ||
166 | assert(network); | |
167 | assert(ret); | |
ecb0e85e YW |
168 | assert(filename); |
169 | assert(section_line > 0); | |
203d4df5 | 170 | |
ecb0e85e YW |
171 | r = network_config_section_new(filename, section_line, &n); |
172 | if (r < 0) | |
173 | return r; | |
203d4df5 | 174 | |
ecb0e85e YW |
175 | prefix = hashmap_get(network->route_prefixes_by_section, n); |
176 | if (prefix) { | |
177 | *ret = TAKE_PTR(prefix); | |
178 | return 0; | |
203d4df5 SS |
179 | } |
180 | ||
181 | r = route_prefix_new(&prefix); | |
182 | if (r < 0) | |
183 | return r; | |
184 | ||
185 | prefix->network = network; | |
ecb0e85e | 186 | prefix->section = TAKE_PTR(n); |
203d4df5 | 187 | |
b2cb2e82 | 188 | r = hashmap_ensure_put(&network->route_prefixes_by_section, &network_config_hash_ops, prefix->section, prefix); |
ecb0e85e YW |
189 | if (r < 0) |
190 | return r; | |
203d4df5 SS |
191 | |
192 | *ret = TAKE_PTR(prefix); | |
193 | ||
194 | return 0; | |
195 | } | |
196 | ||
3b6a3bde YW |
197 | int link_request_radv_addresses(Link *link) { |
198 | Prefix *p; | |
199 | int r; | |
200 | ||
201 | assert(link); | |
202 | ||
203 | if (!link_radv_enabled(link)) | |
204 | return 0; | |
205 | ||
206 | HASHMAP_FOREACH(p, link->network->prefixes_by_section) { | |
207 | _cleanup_(address_freep) Address *address = NULL; | |
208 | ||
209 | if (!p->assign) | |
210 | continue; | |
211 | ||
212 | r = address_new(&address); | |
213 | if (r < 0) | |
214 | return log_oom(); | |
215 | ||
216 | r = sd_radv_prefix_get_prefix(p->radv_prefix, &address->in_addr.in6, &address->prefixlen); | |
217 | if (r < 0) | |
218 | return r; | |
219 | ||
220 | r = generate_ipv6_eui_64_address(link, &address->in_addr.in6); | |
221 | if (r < 0) | |
222 | return r; | |
223 | ||
224 | address->source = NETWORK_CONFIG_SOURCE_STATIC; | |
225 | address->family = AF_INET6; | |
226 | address->route_metric = p->route_metric; | |
227 | ||
228 | r = link_request_static_address(link, TAKE_PTR(address), true); | |
229 | if (r < 0) | |
230 | return r; | |
231 | } | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
0943b3b7 YW |
236 | static int network_get_ipv6_dns(Network *network, struct in6_addr **ret_addresses, size_t *ret_size) { |
237 | _cleanup_free_ struct in6_addr *addresses = NULL; | |
238 | size_t n_addresses = 0; | |
6e849e95 | 239 | |
0943b3b7 YW |
240 | assert(network); |
241 | assert(ret_addresses); | |
242 | assert(ret_size); | |
6e849e95 | 243 | |
0943b3b7 YW |
244 | for (size_t i = 0; i < network->n_dns; i++) { |
245 | union in_addr_union *addr; | |
6e849e95 | 246 | |
0943b3b7 YW |
247 | if (network->dns[i]->family != AF_INET6) |
248 | continue; | |
6e849e95 | 249 | |
0943b3b7 | 250 | addr = &network->dns[i]->address; |
6e849e95 | 251 | |
0943b3b7 YW |
252 | if (in_addr_is_null(AF_INET6, addr) || |
253 | in_addr_is_link_local(AF_INET6, addr) || | |
254 | in_addr_is_localhost(AF_INET6, addr)) | |
255 | continue; | |
256 | ||
257 | if (!GREEDY_REALLOC(addresses, n_addresses + 1)) | |
258 | return -ENOMEM; | |
259 | ||
260 | addresses[n_addresses++] = addr->in6; | |
c9778516 | 261 | } |
6e849e95 | 262 | |
0943b3b7 YW |
263 | *ret_addresses = TAKE_PTR(addresses); |
264 | *ret_size = n_addresses; | |
6e849e95 | 265 | |
0943b3b7 | 266 | return n_addresses; |
6e849e95 PF |
267 | } |
268 | ||
0943b3b7 YW |
269 | static int radv_set_dns(Link *link, Link *uplink) { |
270 | _cleanup_free_ struct in6_addr *dns = NULL; | |
271 | usec_t lifetime_usec; | |
272 | size_t n_dns; | |
c9778516 | 273 | int r; |
6e849e95 | 274 | |
0943b3b7 | 275 | if (!link->network->router_emit_dns) |
6e849e95 | 276 | return 0; |
6e849e95 | 277 | |
0943b3b7 YW |
278 | if (link->network->router_dns) { |
279 | struct in6_addr *p; | |
6e849e95 | 280 | |
0943b3b7 YW |
281 | dns = new(struct in6_addr, link->network->n_router_dns); |
282 | if (!dns) | |
283 | return -ENOMEM; | |
6e849e95 | 284 | |
0943b3b7 YW |
285 | p = dns; |
286 | for (size_t i = 0; i < link->network->n_router_dns; i++) | |
287 | if (in6_addr_is_null(&link->network->router_dns[i])) { | |
288 | if (in6_addr_is_set(&link->ipv6ll_address)) | |
289 | *(p++) = link->ipv6ll_address; | |
290 | } else | |
291 | *(p++) = link->network->router_dns[i]; | |
6e849e95 | 292 | |
0943b3b7 YW |
293 | n_dns = p - dns; |
294 | lifetime_usec = link->network->router_dns_lifetime_usec; | |
a8d4a210 | 295 | |
0943b3b7 YW |
296 | goto set_dns; |
297 | } | |
6e849e95 | 298 | |
0943b3b7 | 299 | lifetime_usec = SD_RADV_DEFAULT_DNS_LIFETIME_USEC; |
6e849e95 | 300 | |
0943b3b7 YW |
301 | r = network_get_ipv6_dns(link->network, &dns, &n_dns); |
302 | if (r > 0) | |
303 | goto set_dns; | |
6e849e95 | 304 | |
0943b3b7 YW |
305 | if (uplink) { |
306 | assert(uplink->network); | |
307 | ||
308 | r = network_get_ipv6_dns(uplink->network, &dns, &n_dns); | |
309 | if (r > 0) | |
310 | goto set_dns; | |
6e849e95 PF |
311 | } |
312 | ||
6e849e95 | 313 | return 0; |
bd6379ec | 314 | |
0943b3b7 YW |
315 | set_dns: |
316 | return sd_radv_set_rdnss(link->radv, | |
317 | DIV_ROUND_UP(lifetime_usec, USEC_PER_SEC), | |
318 | dns, n_dns); | |
319 | } | |
bd6379ec | 320 | |
0943b3b7 YW |
321 | static int radv_set_domains(Link *link, Link *uplink) { |
322 | OrderedSet *search_domains; | |
323 | usec_t lifetime_usec; | |
324 | _cleanup_free_ char **s = NULL; /* just free() because the strings are owned by the set */ | |
bd6379ec | 325 | |
0943b3b7 | 326 | if (!link->network->router_emit_domains) |
bd6379ec | 327 | return 0; |
bd6379ec | 328 | |
0943b3b7 YW |
329 | search_domains = link->network->router_search_domains; |
330 | lifetime_usec = link->network->router_dns_lifetime_usec; | |
bd6379ec | 331 | |
0943b3b7 YW |
332 | if (search_domains) |
333 | goto set_domains; | |
0e1fb1d0 | 334 | |
0943b3b7 | 335 | lifetime_usec = SD_RADV_DEFAULT_DNS_LIFETIME_USEC; |
0e1fb1d0 | 336 | |
0943b3b7 YW |
337 | search_domains = link->network->search_domains; |
338 | if (search_domains) | |
339 | goto set_domains; | |
0e1fb1d0 | 340 | |
0943b3b7 YW |
341 | if (uplink) { |
342 | assert(uplink->network); | |
0e1fb1d0 | 343 | |
0943b3b7 YW |
344 | search_domains = uplink->network->search_domains; |
345 | if (search_domains) | |
346 | goto set_domains; | |
0e1fb1d0 YW |
347 | } |
348 | ||
0e1fb1d0 | 349 | return 0; |
0e1fb1d0 | 350 | |
0943b3b7 YW |
351 | set_domains: |
352 | s = ordered_set_get_strv(search_domains); | |
353 | if (!s) | |
354 | return log_oom(); | |
203d4df5 | 355 | |
0943b3b7 YW |
356 | return sd_radv_set_dnssl(link->radv, |
357 | DIV_ROUND_UP(lifetime_usec, USEC_PER_SEC), | |
358 | s); | |
203d4df5 | 359 | |
0943b3b7 | 360 | } |
203d4df5 | 361 | |
0943b3b7 YW |
362 | static int radv_find_uplink(Link *link, Link **ret) { |
363 | assert(link); | |
203d4df5 | 364 | |
0943b3b7 YW |
365 | if (link->network->router_uplink_name) |
366 | return link_get_by_name(link->manager, link->network->router_uplink_name, ret); | |
203d4df5 | 367 | |
0943b3b7 YW |
368 | if (link->network->router_uplink_index > 0) |
369 | return link_get_by_index(link->manager, link->network->router_uplink_index, ret); | |
370 | ||
371 | if (link->network->router_uplink_index == UPLINK_INDEX_AUTO) { | |
372 | /* It is not necessary to propagate error in automatic selection. */ | |
373 | if (manager_find_uplink(link->manager, AF_INET6, link, ret) < 0) | |
374 | *ret = NULL; | |
c9778516 YW |
375 | return 0; |
376 | } | |
203d4df5 | 377 | |
0943b3b7 | 378 | *ret = NULL; |
203d4df5 SS |
379 | return 0; |
380 | } | |
381 | ||
0943b3b7 YW |
382 | static int radv_configure(Link *link) { |
383 | uint16_t router_lifetime; | |
384 | Link *uplink = NULL; | |
385 | RoutePrefix *q; | |
386 | Prefix *p; | |
203d4df5 SS |
387 | int r; |
388 | ||
0943b3b7 YW |
389 | assert(link); |
390 | assert(link->network); | |
203d4df5 | 391 | |
0943b3b7 YW |
392 | if (link->radv) |
393 | return -EBUSY; | |
394 | ||
395 | r = sd_radv_new(&link->radv); | |
203d4df5 | 396 | if (r < 0) |
0943b3b7 | 397 | return r; |
203d4df5 | 398 | |
0943b3b7 YW |
399 | r = sd_radv_attach_event(link->radv, link->manager->event, 0); |
400 | if (r < 0) | |
401 | return r; | |
203d4df5 | 402 | |
0943b3b7 YW |
403 | r = sd_radv_set_mac(link->radv, &link->hw_addr.ether); |
404 | if (r < 0) | |
405 | return r; | |
203d4df5 | 406 | |
0943b3b7 YW |
407 | r = sd_radv_set_ifindex(link->radv, link->ifindex); |
408 | if (r < 0) | |
409 | return r; | |
203d4df5 | 410 | |
0943b3b7 YW |
411 | r = sd_radv_set_managed_information(link->radv, link->network->router_managed); |
412 | if (r < 0) | |
413 | return r; | |
203d4df5 | 414 | |
0943b3b7 YW |
415 | r = sd_radv_set_other_information(link->radv, link->network->router_other_information); |
416 | if (r < 0) | |
417 | return r; | |
c555a358 | 418 | |
0943b3b7 YW |
419 | /* a value of UINT16_MAX represents infinity, 0x0 means this host is not a router */ |
420 | if (link->network->router_lifetime_usec == USEC_INFINITY) | |
421 | router_lifetime = UINT16_MAX; | |
422 | else if (link->network->router_lifetime_usec > (UINT16_MAX - 1) * USEC_PER_SEC) | |
423 | router_lifetime = UINT16_MAX - 1; | |
424 | else | |
425 | router_lifetime = DIV_ROUND_UP(link->network->router_lifetime_usec, USEC_PER_SEC); | |
c555a358 | 426 | |
0943b3b7 YW |
427 | r = sd_radv_set_router_lifetime(link->radv, router_lifetime); |
428 | if (r < 0) | |
429 | return r; | |
c555a358 | 430 | |
0943b3b7 YW |
431 | if (router_lifetime > 0) { |
432 | r = sd_radv_set_preference(link->radv, link->network->router_preference); | |
433 | if (r < 0) | |
434 | return r; | |
435 | } | |
c555a358 | 436 | |
0943b3b7 YW |
437 | HASHMAP_FOREACH(p, link->network->prefixes_by_section) { |
438 | r = sd_radv_add_prefix(link->radv, p->radv_prefix, false); | |
439 | if (r == -EEXIST) | |
440 | continue; | |
441 | if (r == -ENOEXEC) { | |
442 | log_link_warning_errno(link, r, "[IPv6Prefix] section configured without Prefix= setting, ignoring section."); | |
443 | continue; | |
444 | } | |
445 | if (r < 0) | |
446 | return r; | |
447 | } | |
c555a358 | 448 | |
0943b3b7 YW |
449 | HASHMAP_FOREACH(q, link->network->route_prefixes_by_section) { |
450 | r = sd_radv_add_route_prefix(link->radv, q->radv_route_prefix, false); | |
451 | if (r == -EEXIST) | |
c555a358 | 452 | continue; |
0943b3b7 YW |
453 | if (r < 0) |
454 | return r; | |
455 | } | |
c555a358 | 456 | |
0943b3b7 | 457 | (void) radv_find_uplink(link, &uplink); |
c555a358 | 458 | |
0943b3b7 YW |
459 | r = radv_set_dns(link, uplink); |
460 | if (r < 0) | |
461 | return log_link_debug_errno(link, r, "Could not set RA DNS: %m"); | |
c555a358 | 462 | |
0943b3b7 YW |
463 | r = radv_set_domains(link, uplink); |
464 | if (r < 0) | |
465 | return log_link_debug_errno(link, r, "Could not set RA Domains: %m"); | |
c555a358 | 466 | |
0943b3b7 | 467 | return 0; |
c555a358 PF |
468 | } |
469 | ||
0943b3b7 YW |
470 | int radv_update_mac(Link *link) { |
471 | bool restart; | |
c555a358 PF |
472 | int r; |
473 | ||
0943b3b7 | 474 | assert(link); |
c555a358 | 475 | |
0943b3b7 YW |
476 | if (!link->radv) |
477 | return 0; | |
fd3ef936 | 478 | |
0943b3b7 | 479 | restart = sd_radv_is_running(link->radv); |
c555a358 | 480 | |
0943b3b7 YW |
481 | r = sd_radv_stop(link->radv); |
482 | if (r < 0) | |
483 | return r; | |
fd3ef936 | 484 | |
0943b3b7 YW |
485 | r = sd_radv_set_mac(link->radv, &link->hw_addr.ether); |
486 | if (r < 0) | |
487 | return r; | |
c555a358 | 488 | |
0943b3b7 YW |
489 | if (restart) { |
490 | r = sd_radv_start(link->radv); | |
491 | if (r < 0) | |
492 | return r; | |
c555a358 PF |
493 | } |
494 | ||
0943b3b7 YW |
495 | return 0; |
496 | } | |
c555a358 | 497 | |
0943b3b7 YW |
498 | static int radv_is_ready_to_configure(Link *link) { |
499 | bool needs_uplink = false; | |
500 | int r; | |
c555a358 | 501 | |
0943b3b7 YW |
502 | assert(link); |
503 | assert(link->network); | |
349a981d | 504 | |
0943b3b7 YW |
505 | if (!IN_SET(link->state, LINK_STATE_CONFIGURING, LINK_STATE_CONFIGURED)) |
506 | return false; | |
c555a358 | 507 | |
0943b3b7 YW |
508 | if (in6_addr_is_null(&link->ipv6ll_address)) |
509 | return false; | |
c555a358 | 510 | |
0943b3b7 YW |
511 | if (link->network->router_emit_dns && !link->network->router_dns) { |
512 | _cleanup_free_ struct in6_addr *dns = NULL; | |
513 | size_t n_dns; | |
c555a358 | 514 | |
0943b3b7 YW |
515 | r = network_get_ipv6_dns(link->network, &dns, &n_dns); |
516 | if (r < 0) | |
517 | return r; | |
c555a358 | 518 | |
0943b3b7 YW |
519 | needs_uplink = r == 0; |
520 | } | |
c555a358 | 521 | |
0943b3b7 YW |
522 | if (link->network->router_emit_domains && |
523 | !link->network->router_search_domains && | |
524 | !link->network->search_domains) | |
525 | needs_uplink = true; | |
526 | ||
527 | if (needs_uplink) { | |
528 | Link *uplink = NULL; | |
c555a358 | 529 | |
0943b3b7 YW |
530 | if (radv_find_uplink(link, &uplink) < 0) |
531 | return false; | |
c555a358 | 532 | |
0943b3b7 YW |
533 | if (uplink && !uplink->network) |
534 | return false; | |
535 | } | |
c555a358 | 536 | |
0943b3b7 YW |
537 | return true; |
538 | } | |
c555a358 | 539 | |
0943b3b7 YW |
540 | int request_process_radv(Request *req) { |
541 | Link *link; | |
542 | int r; | |
349a981d | 543 | |
0943b3b7 YW |
544 | assert(req); |
545 | assert(req->link); | |
546 | assert(req->type == REQUEST_TYPE_RADV); | |
c555a358 | 547 | |
0943b3b7 | 548 | link = req->link; |
c555a358 | 549 | |
0943b3b7 YW |
550 | r = radv_is_ready_to_configure(link); |
551 | if (r <= 0) | |
552 | return r; | |
5e2a51d5 | 553 | |
0943b3b7 YW |
554 | r = radv_configure(link); |
555 | if (r < 0) | |
556 | return log_link_warning_errno(link, r, "Failed to configure IPv6 Router Advertisement engine: %m"); | |
c555a358 | 557 | |
0943b3b7 YW |
558 | if (link_has_carrier(link)) { |
559 | r = sd_radv_start(link->radv); | |
560 | if (r < 0) | |
561 | return log_link_warning_errno(link, r, "Failed to start IPv6 Router Advertisement engine: %m"); | |
562 | } | |
563 | ||
564 | log_link_debug(link, "IPv6 Router Advertisement engine is configured%s.", | |
565 | link_has_carrier(link) ? " and started." : ""); | |
566 | return 1; | |
c555a358 PF |
567 | } |
568 | ||
0943b3b7 YW |
569 | int link_request_radv(Link *link) { |
570 | int r; | |
63295b42 | 571 | |
0943b3b7 | 572 | assert(link); |
63295b42 | 573 | |
0943b3b7 YW |
574 | if (!link_radv_enabled(link)) |
575 | return 0; | |
63295b42 | 576 | |
0943b3b7 | 577 | if (link->radv) |
63295b42 | 578 | return 0; |
63295b42 | 579 | |
0943b3b7 YW |
580 | r = link_queue_request(link, REQUEST_TYPE_RADV, NULL, false, NULL, NULL, NULL); |
581 | if (r < 0) | |
582 | return log_link_warning_errno(link, r, "Failed to request configuring of the IPv6 Router Advertisement engine: %m"); | |
583 | ||
584 | log_link_debug(link, "Requested configuring of the IPv6 Router Advertisement engine."); | |
63295b42 YW |
585 | return 0; |
586 | } | |
587 | ||
0943b3b7 YW |
588 | int radv_add_prefix( |
589 | Link *link, | |
590 | const struct in6_addr *prefix, | |
591 | uint8_t prefix_len, | |
592 | uint32_t lifetime_preferred, | |
593 | uint32_t lifetime_valid) { | |
594 | ||
595 | _cleanup_(sd_radv_prefix_unrefp) sd_radv_prefix *p = NULL; | |
95081e08 | 596 | int r; |
091214b6 PF |
597 | |
598 | assert(link); | |
091214b6 | 599 | |
0943b3b7 YW |
600 | if (!link->radv) |
601 | return 0; | |
bc9e40c9 | 602 | |
0943b3b7 | 603 | r = sd_radv_prefix_new(&p); |
091214b6 PF |
604 | if (r < 0) |
605 | return r; | |
606 | ||
0943b3b7 | 607 | r = sd_radv_prefix_set_prefix(p, prefix, prefix_len); |
091214b6 PF |
608 | if (r < 0) |
609 | return r; | |
610 | ||
0943b3b7 | 611 | r = sd_radv_prefix_set_preferred_lifetime(p, lifetime_preferred); |
091214b6 PF |
612 | if (r < 0) |
613 | return r; | |
614 | ||
0943b3b7 | 615 | r = sd_radv_prefix_set_valid_lifetime(p, lifetime_valid); |
091214b6 PF |
616 | if (r < 0) |
617 | return r; | |
618 | ||
0943b3b7 YW |
619 | r = sd_radv_add_prefix(link->radv, p, true); |
620 | if (r < 0 && r != -EEXIST) | |
091214b6 PF |
621 | return r; |
622 | ||
0943b3b7 YW |
623 | return 0; |
624 | } | |
091214b6 | 625 | |
0943b3b7 YW |
626 | void network_drop_invalid_prefixes(Network *network) { |
627 | Prefix *prefix; | |
2075e596 | 628 | |
0943b3b7 YW |
629 | assert(network); |
630 | ||
631 | HASHMAP_FOREACH(prefix, network->prefixes_by_section) | |
632 | if (section_is_invalid(prefix->section)) | |
633 | prefix_free(prefix); | |
634 | } | |
635 | ||
636 | void network_drop_invalid_route_prefixes(Network *network) { | |
637 | RoutePrefix *prefix; | |
638 | ||
639 | assert(network); | |
640 | ||
641 | HASHMAP_FOREACH(prefix, network->route_prefixes_by_section) | |
642 | if (section_is_invalid(prefix->section)) | |
643 | route_prefix_free(prefix); | |
644 | } | |
645 | ||
646 | int config_parse_prefix( | |
647 | const char *unit, | |
648 | const char *filename, | |
649 | unsigned line, | |
650 | const char *section, | |
651 | unsigned section_line, | |
652 | const char *lvalue, | |
653 | int ltype, | |
654 | const char *rvalue, | |
655 | void *data, | |
656 | void *userdata) { | |
657 | ||
658 | Network *network = userdata; | |
659 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; | |
660 | uint8_t prefixlen = 64; | |
661 | union in_addr_union in6addr; | |
662 | int r; | |
663 | ||
664 | assert(filename); | |
665 | assert(section); | |
666 | assert(lvalue); | |
667 | assert(rvalue); | |
668 | assert(data); | |
669 | ||
670 | r = prefix_new_static(network, filename, section_line, &p); | |
091214b6 | 671 | if (r < 0) |
0943b3b7 | 672 | return log_oom(); |
091214b6 | 673 | |
0943b3b7 YW |
674 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &in6addr, &prefixlen); |
675 | if (r < 0) { | |
676 | log_syntax(unit, LOG_WARNING, filename, line, r, "Prefix is invalid, ignoring assignment: %s", rvalue); | |
677 | return 0; | |
091214b6 PF |
678 | } |
679 | ||
0943b3b7 YW |
680 | r = sd_radv_prefix_set_prefix(p->radv_prefix, &in6addr.in6, prefixlen); |
681 | if (r < 0) { | |
682 | log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to set radv prefix, ignoring assignment: %s", rvalue); | |
683 | return 0; | |
8a08bbfc | 684 | } |
203d4df5 | 685 | |
0943b3b7 | 686 | p = NULL; |
091214b6 | 687 | |
0943b3b7 YW |
688 | return 0; |
689 | } | |
a254fab2 | 690 | |
0943b3b7 YW |
691 | int config_parse_prefix_flags( |
692 | const char *unit, | |
693 | const char *filename, | |
694 | unsigned line, | |
695 | const char *section, | |
696 | unsigned section_line, | |
697 | const char *lvalue, | |
698 | int ltype, | |
699 | const char *rvalue, | |
700 | void *data, | |
701 | void *userdata) { | |
a254fab2 | 702 | |
0943b3b7 YW |
703 | Network *network = userdata; |
704 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; | |
705 | int r; | |
706 | ||
707 | assert(filename); | |
708 | assert(section); | |
709 | assert(lvalue); | |
710 | assert(rvalue); | |
711 | assert(data); | |
712 | ||
713 | r = prefix_new_static(network, filename, section_line, &p); | |
a254fab2 | 714 | if (r < 0) |
0943b3b7 YW |
715 | return log_oom(); |
716 | ||
717 | r = parse_boolean(rvalue); | |
718 | if (r < 0) { | |
719 | log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s=, ignoring assignment: %s", lvalue, rvalue); | |
720 | return 0; | |
721 | } | |
722 | ||
723 | if (streq(lvalue, "OnLink")) | |
724 | r = sd_radv_prefix_set_onlink(p->radv_prefix, r); | |
725 | else if (streq(lvalue, "AddressAutoconfiguration")) | |
726 | r = sd_radv_prefix_set_address_autoconfiguration(p->radv_prefix, r); | |
727 | if (r < 0) { | |
728 | log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to set %s=, ignoring assignment: %m", lvalue); | |
729 | return 0; | |
730 | } | |
731 | ||
732 | p = NULL; | |
a254fab2 | 733 | |
fd3ef936 | 734 | return 0; |
091214b6 | 735 | } |
ca5ad760 | 736 | |
0943b3b7 YW |
737 | int config_parse_prefix_lifetime( |
738 | const char *unit, | |
739 | const char *filename, | |
740 | unsigned line, | |
741 | const char *section, | |
742 | unsigned section_line, | |
743 | const char *lvalue, | |
744 | int ltype, | |
745 | const char *rvalue, | |
746 | void *data, | |
747 | void *userdata) { | |
748 | ||
749 | Network *network = userdata; | |
750 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; | |
751 | usec_t usec; | |
be9363cc YW |
752 | int r; |
753 | ||
0943b3b7 YW |
754 | assert(filename); |
755 | assert(section); | |
756 | assert(lvalue); | |
757 | assert(rvalue); | |
758 | assert(data); | |
be9363cc | 759 | |
0943b3b7 | 760 | r = prefix_new_static(network, filename, section_line, &p); |
a391901e | 761 | if (r < 0) |
0943b3b7 | 762 | return log_oom(); |
be9363cc | 763 | |
0943b3b7 YW |
764 | r = parse_sec(rvalue, &usec); |
765 | if (r < 0) { | |
766 | log_syntax(unit, LOG_WARNING, filename, line, r, "Lifetime is invalid, ignoring assignment: %s", rvalue); | |
767 | return 0; | |
768 | } | |
be9363cc | 769 | |
0943b3b7 YW |
770 | /* a value of 0xffffffff represents infinity */ |
771 | if (streq(lvalue, "PreferredLifetimeSec")) | |
772 | r = sd_radv_prefix_set_preferred_lifetime(p->radv_prefix, | |
773 | DIV_ROUND_UP(usec, USEC_PER_SEC)); | |
774 | else if (streq(lvalue, "ValidLifetimeSec")) | |
775 | r = sd_radv_prefix_set_valid_lifetime(p->radv_prefix, | |
776 | DIV_ROUND_UP(usec, USEC_PER_SEC)); | |
777 | if (r < 0) { | |
778 | log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to set %s=, ignoring assignment: %m", lvalue); | |
779 | return 0; | |
be9363cc YW |
780 | } |
781 | ||
0943b3b7 YW |
782 | p = NULL; |
783 | ||
be9363cc YW |
784 | return 0; |
785 | } | |
786 | ||
0943b3b7 YW |
787 | int config_parse_prefix_assign( |
788 | const char *unit, | |
789 | const char *filename, | |
790 | unsigned line, | |
791 | const char *section, | |
792 | unsigned section_line, | |
793 | const char *lvalue, | |
794 | int ltype, | |
795 | const char *rvalue, | |
796 | void *data, | |
797 | void *userdata) { | |
a254fab2 | 798 | |
0943b3b7 YW |
799 | Network *network = userdata; |
800 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; | |
801 | int r; | |
a254fab2 | 802 | |
0943b3b7 YW |
803 | assert(filename); |
804 | assert(section); | |
805 | assert(lvalue); | |
806 | assert(rvalue); | |
807 | assert(data); | |
63295b42 | 808 | |
0943b3b7 YW |
809 | r = prefix_new_static(network, filename, section_line, &p); |
810 | if (r < 0) | |
811 | return log_oom(); | |
63295b42 | 812 | |
0943b3b7 YW |
813 | r = parse_boolean(rvalue); |
814 | if (r < 0) { | |
815 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
816 | "Failed to parse %s=, ignoring assignment: %s", | |
817 | lvalue, rvalue); | |
818 | return 0; | |
63295b42 YW |
819 | } |
820 | ||
0943b3b7 YW |
821 | p->assign = r; |
822 | p = NULL; | |
63295b42 | 823 | |
0943b3b7 | 824 | return 0; |
a254fab2 YW |
825 | } |
826 | ||
0943b3b7 YW |
827 | int config_parse_prefix_metric( |
828 | const char *unit, | |
829 | const char *filename, | |
830 | unsigned line, | |
831 | const char *section, | |
832 | unsigned section_line, | |
833 | const char *lvalue, | |
834 | int ltype, | |
835 | const char *rvalue, | |
836 | void *data, | |
837 | void *userdata) { | |
a254fab2 | 838 | |
0943b3b7 YW |
839 | Network *network = userdata; |
840 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; | |
841 | int r; | |
a254fab2 | 842 | |
0943b3b7 YW |
843 | assert(filename); |
844 | assert(section); | |
845 | assert(lvalue); | |
846 | assert(rvalue); | |
847 | assert(data); | |
a254fab2 | 848 | |
0943b3b7 | 849 | r = prefix_new_static(network, filename, section_line, &p); |
a254fab2 | 850 | if (r < 0) |
0943b3b7 | 851 | return log_oom(); |
a254fab2 | 852 | |
0943b3b7 YW |
853 | r = safe_atou32(rvalue, &p->route_metric); |
854 | if (r < 0) { | |
855 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
856 | "Failed to parse %s=, ignoring assignment: %s", | |
857 | lvalue, rvalue); | |
858 | return 0; | |
a254fab2 YW |
859 | } |
860 | ||
0943b3b7 YW |
861 | TAKE_PTR(p); |
862 | ||
863 | return 0; | |
a254fab2 YW |
864 | } |
865 | ||
0943b3b7 YW |
866 | int config_parse_route_prefix( |
867 | const char *unit, | |
868 | const char *filename, | |
869 | unsigned line, | |
870 | const char *section, | |
871 | unsigned section_line, | |
872 | const char *lvalue, | |
873 | int ltype, | |
874 | const char *rvalue, | |
875 | void *data, | |
876 | void *userdata) { | |
877 | ||
878 | Network *network = userdata; | |
879 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; | |
880 | uint8_t prefixlen = 64; | |
881 | union in_addr_union in6addr; | |
a254fab2 YW |
882 | int r; |
883 | ||
0943b3b7 YW |
884 | assert(filename); |
885 | assert(section); | |
886 | assert(lvalue); | |
887 | assert(rvalue); | |
888 | assert(data); | |
a254fab2 | 889 | |
0943b3b7 YW |
890 | r = route_prefix_new_static(network, filename, section_line, &p); |
891 | if (r < 0) | |
892 | return log_oom(); | |
893 | ||
894 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &in6addr, &prefixlen); | |
895 | if (r < 0) { | |
896 | log_syntax(unit, LOG_WARNING, filename, line, r, "Route prefix is invalid, ignoring assignment: %s", rvalue); | |
a254fab2 | 897 | return 0; |
0943b3b7 | 898 | } |
a254fab2 | 899 | |
0943b3b7 YW |
900 | r = sd_radv_prefix_set_route_prefix(p->radv_route_prefix, &in6addr.in6, prefixlen); |
901 | if (r < 0) { | |
902 | log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to set route prefix, ignoring assignment: %m"); | |
a254fab2 | 903 | return 0; |
0943b3b7 | 904 | } |
a254fab2 | 905 | |
0943b3b7 | 906 | p = NULL; |
a254fab2 | 907 | |
a254fab2 YW |
908 | return 0; |
909 | } | |
910 | ||
0943b3b7 YW |
911 | int config_parse_route_prefix_lifetime( |
912 | const char *unit, | |
913 | const char *filename, | |
914 | unsigned line, | |
915 | const char *section, | |
916 | unsigned section_line, | |
917 | const char *lvalue, | |
918 | int ltype, | |
919 | const char *rvalue, | |
920 | void *data, | |
921 | void *userdata) { | |
a8d4a210 | 922 | |
0943b3b7 YW |
923 | Network *network = userdata; |
924 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; | |
925 | usec_t usec; | |
1d596fde YW |
926 | int r; |
927 | ||
0943b3b7 YW |
928 | assert(filename); |
929 | assert(section); | |
930 | assert(lvalue); | |
931 | assert(rvalue); | |
932 | assert(data); | |
1d596fde | 933 | |
0943b3b7 | 934 | r = route_prefix_new_static(network, filename, section_line, &p); |
1d596fde | 935 | if (r < 0) |
0943b3b7 | 936 | return log_oom(); |
1d596fde | 937 | |
0943b3b7 YW |
938 | r = parse_sec(rvalue, &usec); |
939 | if (r < 0) { | |
940 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
941 | "Route lifetime is invalid, ignoring assignment: %s", rvalue); | |
942 | return 0; | |
943 | } | |
1d596fde | 944 | |
0943b3b7 YW |
945 | /* a value of 0xffffffff represents infinity */ |
946 | r = sd_radv_route_prefix_set_lifetime(p->radv_route_prefix, DIV_ROUND_UP(usec, USEC_PER_SEC)); | |
947 | if (r < 0) { | |
948 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
949 | "Failed to set route lifetime, ignoring assignment: %m"); | |
950 | return 0; | |
951 | } | |
1d596fde | 952 | |
0943b3b7 | 953 | p = NULL; |
1d596fde YW |
954 | |
955 | return 0; | |
956 | } | |
957 | ||
ca5ad760 YW |
958 | int config_parse_radv_dns( |
959 | const char *unit, | |
960 | const char *filename, | |
961 | unsigned line, | |
962 | const char *section, | |
963 | unsigned section_line, | |
964 | const char *lvalue, | |
965 | int ltype, | |
966 | const char *rvalue, | |
967 | void *data, | |
968 | void *userdata) { | |
969 | ||
970 | Network *n = data; | |
ca5ad760 YW |
971 | int r; |
972 | ||
973 | assert(filename); | |
974 | assert(lvalue); | |
975 | assert(rvalue); | |
976 | ||
a3c1a949 YW |
977 | if (isempty(rvalue)) { |
978 | n->n_router_dns = 0; | |
979 | n->router_dns = mfree(n->router_dns); | |
980 | return 0; | |
981 | } | |
982 | ||
d96edb2c | 983 | for (const char *p = rvalue;;) { |
ca5ad760 YW |
984 | _cleanup_free_ char *w = NULL; |
985 | union in_addr_union a; | |
986 | ||
987 | r = extract_first_word(&p, &w, NULL, 0); | |
988 | if (r == -ENOMEM) | |
989 | return log_oom(); | |
990 | if (r < 0) { | |
d96edb2c | 991 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
992 | "Failed to extract word, ignoring: %s", rvalue); |
993 | return 0; | |
994 | } | |
995 | if (r == 0) | |
d96edb2c | 996 | return 0; |
ca5ad760 | 997 | |
fd3ef936 YW |
998 | if (streq(w, "_link_local")) |
999 | a = IN_ADDR_NULL; | |
1000 | else { | |
1001 | r = in_addr_from_string(AF_INET6, w, &a); | |
1002 | if (r < 0) { | |
d96edb2c | 1003 | log_syntax(unit, LOG_WARNING, filename, line, r, |
fd3ef936 YW |
1004 | "Failed to parse DNS server address, ignoring: %s", w); |
1005 | continue; | |
1006 | } | |
ca5ad760 | 1007 | |
fd3ef936 | 1008 | if (in_addr_is_null(AF_INET6, &a)) { |
d96edb2c | 1009 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
fd3ef936 YW |
1010 | "DNS server address is null, ignoring: %s", w); |
1011 | continue; | |
1012 | } | |
1013 | } | |
ca5ad760 | 1014 | |
fd3ef936 YW |
1015 | struct in6_addr *m; |
1016 | m = reallocarray(n->router_dns, n->n_router_dns + 1, sizeof(struct in6_addr)); | |
1017 | if (!m) | |
1018 | return log_oom(); | |
ca5ad760 | 1019 | |
fd3ef936 YW |
1020 | m[n->n_router_dns++] = a.in6; |
1021 | n->router_dns = m; | |
ca5ad760 | 1022 | } |
ca5ad760 YW |
1023 | } |
1024 | ||
1025 | int config_parse_radv_search_domains( | |
1026 | const char *unit, | |
1027 | const char *filename, | |
1028 | unsigned line, | |
1029 | const char *section, | |
1030 | unsigned section_line, | |
1031 | const char *lvalue, | |
1032 | int ltype, | |
1033 | const char *rvalue, | |
1034 | void *data, | |
1035 | void *userdata) { | |
1036 | ||
1037 | Network *n = data; | |
ca5ad760 YW |
1038 | int r; |
1039 | ||
1040 | assert(filename); | |
1041 | assert(lvalue); | |
1042 | assert(rvalue); | |
1043 | ||
a3c1a949 YW |
1044 | if (isempty(rvalue)) { |
1045 | n->router_search_domains = ordered_set_free(n->router_search_domains); | |
1046 | return 0; | |
1047 | } | |
1048 | ||
d96edb2c | 1049 | for (const char *p = rvalue;;) { |
ca5ad760 YW |
1050 | _cleanup_free_ char *w = NULL, *idna = NULL; |
1051 | ||
1052 | r = extract_first_word(&p, &w, NULL, 0); | |
1053 | if (r == -ENOMEM) | |
1054 | return log_oom(); | |
1055 | if (r < 0) { | |
d96edb2c | 1056 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1057 | "Failed to extract word, ignoring: %s", rvalue); |
1058 | return 0; | |
1059 | } | |
1060 | if (r == 0) | |
d96edb2c | 1061 | return 0; |
ca5ad760 YW |
1062 | |
1063 | r = dns_name_apply_idna(w, &idna); | |
1064 | if (r < 0) { | |
d96edb2c | 1065 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ca5ad760 YW |
1066 | "Failed to apply IDNA to domain name '%s', ignoring: %m", w); |
1067 | continue; | |
1068 | } else if (r == 0) | |
1069 | /* transfer ownership to simplify subsequent operations */ | |
1070 | idna = TAKE_PTR(w); | |
1071 | ||
5e276772 | 1072 | r = ordered_set_ensure_allocated(&n->router_search_domains, &string_hash_ops_free); |
ca5ad760 | 1073 | if (r < 0) |
d96edb2c | 1074 | return log_oom(); |
ca5ad760 YW |
1075 | |
1076 | r = ordered_set_consume(n->router_search_domains, TAKE_PTR(idna)); | |
1077 | if (r < 0) | |
d96edb2c | 1078 | return log_oom(); |
ca5ad760 | 1079 | } |
ca5ad760 YW |
1080 | } |
1081 | ||
1082 | static const char * const radv_prefix_delegation_table[_RADV_PREFIX_DELEGATION_MAX] = { | |
a8d4a210 | 1083 | [RADV_PREFIX_DELEGATION_NONE] = "no", |
ca5ad760 | 1084 | [RADV_PREFIX_DELEGATION_STATIC] = "static", |
a8d4a210 YW |
1085 | [RADV_PREFIX_DELEGATION_DHCP6] = "dhcpv6", |
1086 | [RADV_PREFIX_DELEGATION_BOTH] = "yes", | |
ca5ad760 YW |
1087 | }; |
1088 | ||
1089 | DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN( | |
1090 | radv_prefix_delegation, | |
1091 | RADVPrefixDelegation, | |
1092 | RADV_PREFIX_DELEGATION_BOTH); | |
1093 | ||
27ff0490 YW |
1094 | int config_parse_router_prefix_delegation( |
1095 | const char *unit, | |
1096 | const char *filename, | |
1097 | unsigned line, | |
1098 | const char *section, | |
1099 | unsigned section_line, | |
1100 | const char *lvalue, | |
1101 | int ltype, | |
1102 | const char *rvalue, | |
1103 | void *data, | |
1104 | void *userdata) { | |
1105 | ||
1106 | RADVPrefixDelegation val, *ra = data; | |
1107 | int r; | |
1108 | ||
1109 | assert(filename); | |
1110 | assert(lvalue); | |
1111 | assert(rvalue); | |
1112 | assert(data); | |
1113 | ||
1114 | if (streq(lvalue, "IPv6SendRA")) { | |
1115 | r = parse_boolean(rvalue); | |
1116 | if (r < 0) { | |
1117 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1118 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | /* When IPv6SendRA= is enabled, only static prefixes are sent by default, and users | |
1123 | * need to explicitly enable DHCPv6PrefixDelegation=. */ | |
1124 | *ra = r ? RADV_PREFIX_DELEGATION_STATIC : RADV_PREFIX_DELEGATION_NONE; | |
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | /* For backward compatibility */ | |
1129 | val = radv_prefix_delegation_from_string(rvalue); | |
1130 | if (val < 0) { | |
b98680b2 | 1131 | log_syntax(unit, LOG_WARNING, filename, line, val, |
27ff0490 YW |
1132 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); |
1133 | return 0; | |
1134 | } | |
1135 | ||
1136 | *ra = val; | |
1137 | return 0; | |
1138 | } | |
a8d4a210 YW |
1139 | |
1140 | int config_parse_router_preference( | |
1141 | const char *unit, | |
1142 | const char *filename, | |
1143 | unsigned line, | |
1144 | const char *section, | |
1145 | unsigned section_line, | |
1146 | const char *lvalue, | |
1147 | int ltype, | |
1148 | const char *rvalue, | |
1149 | void *data, | |
1150 | void *userdata) { | |
1151 | ||
ca5ad760 YW |
1152 | Network *network = userdata; |
1153 | ||
1154 | assert(filename); | |
1155 | assert(section); | |
1156 | assert(lvalue); | |
1157 | assert(rvalue); | |
1158 | assert(data); | |
1159 | ||
1160 | if (streq(rvalue, "high")) | |
1161 | network->router_preference = SD_NDISC_PREFERENCE_HIGH; | |
1162 | else if (STR_IN_SET(rvalue, "medium", "normal", "default")) | |
1163 | network->router_preference = SD_NDISC_PREFERENCE_MEDIUM; | |
1164 | else if (streq(rvalue, "low")) | |
1165 | network->router_preference = SD_NDISC_PREFERENCE_LOW; | |
1166 | else | |
d96edb2c YW |
1167 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1168 | "Invalid router preference, ignoring assignment: %s", rvalue); | |
ca5ad760 YW |
1169 | |
1170 | return 0; | |
1171 | } |