projects / thirdparty / systemd.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | |
| 0943b3b7 YW |
585 | int request_process_radv(Request *req) { |
| 586 | Link *link; | |
| 587 | int r; | |
| 349a981d | 588 | |
| 0943b3b7 YW |
589 | assert(req); |
| 590 | assert(req->link); | |
| 591 | assert(req->type == REQUEST_TYPE_RADV); | |
| c555a358 | 592 | |
| 0943b3b7 | 593 | link = req->link; |
| c555a358 | 594 | |
| 0943b3b7 YW |
595 | r = radv_is_ready_to_configure(link); |
| 596 | if (r <= 0) | |
| 597 | return r; | |
| 5e2a51d5 | 598 | |
| 0943b3b7 YW |
599 | r = radv_configure(link); |
| 600 | if (r < 0) | |
| 601 | return log_link_warning_errno(link, r, "Failed to configure IPv6 Router Advertisement engine: %m"); | |
| c555a358 | 602 | |
| 0943b3b7 | 603 | if (link_has_carrier(link)) { |
| 0f96a823 | 604 | r = radv_start(link); |
| 0943b3b7 YW |
605 | if (r < 0) |
| 606 | return log_link_warning_errno(link, r, "Failed to start IPv6 Router Advertisement engine: %m"); | |
| 607 | } | |
| 608 | ||
| 609 | log_link_debug(link, "IPv6 Router Advertisement engine is configured%s.", | |
| 610 | link_has_carrier(link) ? " and started." : ""); | |
| 611 | return 1; | |
| c555a358 PF |
612 | } |
| 613 | ||
| 0943b3b7 YW |
614 | int link_request_radv(Link *link) { |
| 615 | int r; | |
| 63295b42 | 616 | |
| 0943b3b7 | 617 | assert(link); |
| 63295b42 | 618 | |
| 0943b3b7 YW |
619 | if (!link_radv_enabled(link)) |
| 620 | return 0; | |
| 63295b42 | 621 | |
| 0943b3b7 | 622 | if (link->radv) |
| 63295b42 | 623 | return 0; |
| 63295b42 | 624 | |
| 0943b3b7 YW |
625 | r = link_queue_request(link, REQUEST_TYPE_RADV, NULL, false, NULL, NULL, NULL); |
| 626 | if (r < 0) | |
| 627 | return log_link_warning_errno(link, r, "Failed to request configuring of the IPv6 Router Advertisement engine: %m"); | |
| 628 | ||
| 629 | log_link_debug(link, "Requested configuring of the IPv6 Router Advertisement engine."); | |
| 63295b42 YW |
630 | return 0; |
| 631 | } | |
| 632 | ||
| 0f96a823 YW |
633 | int radv_start(Link *link) { |
| 634 | int r; | |
| 635 | ||
| 636 | assert(link); | |
| 637 | assert(link->network); | |
| 638 | ||
| 639 | if (!link->radv) | |
| 640 | return 0; | |
| 641 | ||
| 642 | if (!link_has_carrier(link)) | |
| 643 | return 0; | |
| 644 | ||
| 645 | if (in6_addr_is_null(&link->ipv6ll_address)) | |
| 646 | return 0; | |
| 647 | ||
| 648 | if (sd_radv_is_running(link->radv)) | |
| 649 | return 0; | |
| 650 | ||
| a27588d4 YW |
651 | if (link->network->dhcp_pd_announce) { |
| 652 | r = dhcp_request_prefix_delegation(link); | |
| 0f96a823 | 653 | if (r < 0) |
| a27588d4 | 654 | return log_link_debug_errno(link, r, "Failed to request DHCP delegated subnet prefix: %m"); |
| 0f96a823 YW |
655 | } |
| 656 | ||
| 657 | log_link_debug(link, "Starting IPv6 Router Advertisements"); | |
| 658 | return sd_radv_start(link->radv); | |
| 659 | } | |
| 660 | ||
| 0943b3b7 YW |
661 | int radv_add_prefix( |
| 662 | Link *link, | |
| 663 | const struct in6_addr *prefix, | |
| 664 | uint8_t prefix_len, | |
| 16bc8635 YW |
665 | usec_t lifetime_preferred_usec, |
| 666 | usec_t lifetime_valid_usec) { | |
| 0943b3b7 YW |
667 | |
| 668 | _cleanup_(sd_radv_prefix_unrefp) sd_radv_prefix *p = NULL; | |
| 95081e08 | 669 | int r; |
| 091214b6 PF |
670 | |
| 671 | assert(link); | |
| 091214b6 | 672 | |
| 0943b3b7 YW |
673 | if (!link->radv) |
| 674 | return 0; | |
| bc9e40c9 | 675 | |
| 0943b3b7 | 676 | r = sd_radv_prefix_new(&p); |
| 091214b6 PF |
677 | if (r < 0) |
| 678 | return r; | |
| 679 | ||
| 0943b3b7 | 680 | r = sd_radv_prefix_set_prefix(p, prefix, prefix_len); |
| 091214b6 PF |
681 | if (r < 0) |
| 682 | return r; | |
| 683 | ||
| c9e2c2da | 684 | r = sd_radv_prefix_set_preferred_lifetime(p, RADV_DEFAULT_PREFERRED_LIFETIME_USEC, lifetime_preferred_usec); |
| 091214b6 PF |
685 | if (r < 0) |
| 686 | return r; | |
| 687 | ||
| c9e2c2da | 688 | r = sd_radv_prefix_set_valid_lifetime(p, RADV_DEFAULT_VALID_LIFETIME_USEC, lifetime_valid_usec); |
| 091214b6 PF |
689 | if (r < 0) |
| 690 | return r; | |
| 691 | ||
| 95e104e0 | 692 | r = sd_radv_add_prefix(link->radv, p); |
| 0943b3b7 | 693 | if (r < 0 && r != -EEXIST) |
| 091214b6 PF |
694 | return r; |
| 695 | ||
| 0943b3b7 YW |
696 | return 0; |
| 697 | } | |
| 091214b6 | 698 | |
| 2110040b YW |
699 | static int prefix_section_verify(Prefix *p) { |
| 700 | assert(p); | |
| 701 | ||
| 702 | if (section_is_invalid(p->section)) | |
| 703 | return -EINVAL; | |
| 704 | ||
| 705 | if (in6_addr_is_null(&p->prefix)) | |
| 706 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
| 707 | "%s: [IPv6Prefix] section without Prefix= field configured, " | |
| 708 | "or specified prefix is the null address. " | |
| 709 | "Ignoring [IPv6Prefix] section from line %u.", | |
| 710 | p->section->filename, p->section->line); | |
| 711 | ||
| 712 | if (p->prefixlen < 3 || p->prefixlen > 128) | |
| 713 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
| 714 | "%s: Invalid prefix length %u is specified in [IPv6Prefix] section. " | |
| 715 | "Valid range is 3…128. Ignoring [IPv6Prefix] section from line %u.", | |
| 716 | p->section->filename, p->prefixlen, p->section->line); | |
| 717 | ||
| 718 | if (p->prefixlen > 64) { | |
| 719 | _cleanup_free_ char *str = NULL; | |
| 720 | ||
| 721 | if (p->assign) | |
| 722 | (void) in6_addr_prefix_to_string(&p->prefix, p->prefixlen, &str); | |
| 723 | ||
| 724 | log_info("%s: Unusual prefix length %u (> 64) is specified in [IPv6Prefix] section from line %u%s%s.", | |
| 725 | p->section->filename, p->prefixlen, p->section->line, | |
| 726 | p->assign ? ", refusing to assign an address in " : "", | |
| 727 | p->assign ? strna(str) : ""); | |
| 728 | ||
| 729 | p->assign = false; | |
| 730 | } | |
| 731 | ||
| 732 | if (p->valid_lifetime == 0) | |
| 733 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
| 734 | "%s: The valid lifetime of prefix cannot be zero. " | |
| 735 | "Ignoring [IPv6Prefix] section from line %u.", | |
| 736 | p->section->filename, p->section->line); | |
| 737 | ||
| 738 | if (p->preferred_lifetime > p->valid_lifetime) | |
| 739 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
| 740 | "%s: The preferred lifetime %s is longer than the valid lifetime %s. " | |
| 741 | "Ignoring [IPv6Prefix] section from line %u.", | |
| 742 | p->section->filename, | |
| 743 | FORMAT_TIMESPAN(p->preferred_lifetime, USEC_PER_SEC), | |
| 744 | FORMAT_TIMESPAN(p->valid_lifetime, USEC_PER_SEC), | |
| 745 | p->section->line); | |
| 746 | ||
| 747 | return 0; | |
| 748 | } | |
| 749 | ||
| 0943b3b7 | 750 | void network_drop_invalid_prefixes(Network *network) { |
| 2110040b | 751 | Prefix *p; |
| 2075e596 | 752 | |
| 0943b3b7 YW |
753 | assert(network); |
| 754 | ||
| 2110040b YW |
755 | HASHMAP_FOREACH(p, network->prefixes_by_section) |
| 756 | if (prefix_section_verify(p) < 0) | |
| 757 | prefix_free(p); | |
| 758 | } | |
| 759 | ||
| 760 | static int route_prefix_section_verify(RoutePrefix *p) { | |
| 761 | if (section_is_invalid(p->section)) | |
| 762 | return -EINVAL; | |
| 763 | ||
| 764 | if (p->prefixlen > 128) | |
| 765 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
| 766 | "%s: Invalid prefix length %u is specified in [IPv6RoutePrefix] section. " | |
| 767 | "Valid range is 0…128. Ignoring [IPv6RoutePrefix] section from line %u.", | |
| 768 | p->section->filename, p->prefixlen, p->section->line); | |
| 769 | ||
| 770 | if (p->lifetime == 0) | |
| 771 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
| 772 | "%s: The lifetime of route cannot be zero. " | |
| 773 | "Ignoring [IPv6RoutePrefix] section from line %u.", | |
| 774 | p->section->filename, p->section->line); | |
| 775 | ||
| 776 | return 0; | |
| 0943b3b7 YW |
777 | } |
| 778 | ||
| 779 | void network_drop_invalid_route_prefixes(Network *network) { | |
| 2110040b | 780 | RoutePrefix *p; |
| 0943b3b7 YW |
781 | |
| 782 | assert(network); | |
| 783 | ||
| 2110040b YW |
784 | HASHMAP_FOREACH(p, network->route_prefixes_by_section) |
| 785 | if (route_prefix_section_verify(p) < 0) | |
| 786 | route_prefix_free(p); | |
| 0943b3b7 YW |
787 | } |
| 788 | ||
| 789 | int config_parse_prefix( | |
| 790 | const char *unit, | |
| 791 | const char *filename, | |
| 792 | unsigned line, | |
| 793 | const char *section, | |
| 794 | unsigned section_line, | |
| 795 | const char *lvalue, | |
| 796 | int ltype, | |
| 797 | const char *rvalue, | |
| 798 | void *data, | |
| 799 | void *userdata) { | |
| 800 | ||
| 0943b3b7 | 801 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
| 2ac41679 YW |
802 | Network *network = userdata; |
| 803 | union in_addr_union a; | |
| 0943b3b7 YW |
804 | int r; |
| 805 | ||
| 806 | assert(filename); | |
| 807 | assert(section); | |
| 808 | assert(lvalue); | |
| 809 | assert(rvalue); | |
| 2ac41679 | 810 | assert(userdata); |
| 0943b3b7 YW |
811 | |
| 812 | r = prefix_new_static(network, filename, section_line, &p); | |
| 091214b6 | 813 | if (r < 0) |
| 0943b3b7 | 814 | return log_oom(); |
| 091214b6 | 815 | |
| 2ac41679 | 816 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &a, &p->prefixlen); |
| 0943b3b7 | 817 | if (r < 0) { |
| 2ac41679 YW |
818 | log_syntax(unit, LOG_WARNING, filename, line, r, |
| 819 | "Prefix is invalid, ignoring assignment: %s", rvalue); | |
| 0943b3b7 | 820 | return 0; |
| 8a08bbfc | 821 | } |
| cf72568a YW |
822 | |
| 823 | (void) in6_addr_mask(&a.in6, p->prefixlen); | |
| 2ac41679 | 824 | p->prefix = a.in6; |
| 203d4df5 | 825 | |
| 2ac41679 | 826 | TAKE_PTR(p); |
| 0943b3b7 YW |
827 | return 0; |
| 828 | } | |
| a254fab2 | 829 | |
| 2ac41679 | 830 | int config_parse_prefix_boolean( |
| 0943b3b7 YW |
831 | const char *unit, |
| 832 | const char *filename, | |
| 833 | unsigned line, | |
| 834 | const char *section, | |
| 835 | unsigned section_line, | |
| 836 | const char *lvalue, | |
| 837 | int ltype, | |
| 838 | const char *rvalue, | |
| 839 | void *data, | |
| 840 | void *userdata) { | |
| a254fab2 | 841 | |
| 0943b3b7 | 842 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
| 2ac41679 | 843 | Network *network = userdata; |
| 0943b3b7 YW |
844 | int r; |
| 845 | ||
| 846 | assert(filename); | |
| 847 | assert(section); | |
| 848 | assert(lvalue); | |
| 849 | assert(rvalue); | |
| 2ac41679 | 850 | assert(userdata); |
| 0943b3b7 YW |
851 | |
| 852 | r = prefix_new_static(network, filename, section_line, &p); | |
| a254fab2 | 853 | if (r < 0) |
| 0943b3b7 YW |
854 | return log_oom(); |
| 855 | ||
| 856 | r = parse_boolean(rvalue); | |
| 857 | if (r < 0) { | |
| 2ac41679 YW |
858 | log_syntax(unit, LOG_WARNING, filename, line, r, |
| 859 | "Failed to parse %s=, ignoring assignment: %s", lvalue, rvalue); | |
| 0943b3b7 YW |
860 | return 0; |
| 861 | } | |
| 862 | ||
| 863 | if (streq(lvalue, "OnLink")) | |
| 2ac41679 | 864 | p->onlink = r; |
| 0943b3b7 | 865 | else if (streq(lvalue, "AddressAutoconfiguration")) |
| 2ac41679 YW |
866 | p->address_auto_configuration = r; |
| 867 | else if (streq(lvalue, "Assign")) | |
| 868 | p->assign = r; | |
| 869 | else | |
| 870 | assert_not_reached(); | |
| a254fab2 | 871 | |
| 2ac41679 | 872 | TAKE_PTR(p); |
| fd3ef936 | 873 | return 0; |
| 091214b6 | 874 | } |
| ca5ad760 | 875 | |
| 0943b3b7 YW |
876 | int config_parse_prefix_lifetime( |
| 877 | const char *unit, | |
| 878 | const char *filename, | |
| 879 | unsigned line, | |
| 880 | const char *section, | |
| 881 | unsigned section_line, | |
| 882 | const char *lvalue, | |
| 883 | int ltype, | |
| 884 | const char *rvalue, | |
| 885 | void *data, | |
| 886 | void *userdata) { | |
| 887 | ||
| 0943b3b7 | 888 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
| 2ac41679 | 889 | Network *network = userdata; |
| 0943b3b7 | 890 | usec_t usec; |
| be9363cc YW |
891 | int r; |
| 892 | ||
| 0943b3b7 YW |
893 | assert(filename); |
| 894 | assert(section); | |
| 895 | assert(lvalue); | |
| 896 | assert(rvalue); | |
| 2ac41679 | 897 | assert(userdata); |
| be9363cc | 898 | |
| 0943b3b7 | 899 | r = prefix_new_static(network, filename, section_line, &p); |
| a391901e | 900 | if (r < 0) |
| 0943b3b7 | 901 | return log_oom(); |
| be9363cc | 902 | |
| 0943b3b7 YW |
903 | r = parse_sec(rvalue, &usec); |
| 904 | if (r < 0) { | |
| 2ac41679 YW |
905 | log_syntax(unit, LOG_WARNING, filename, line, r, |
| 906 | "Lifetime is invalid, ignoring assignment: %s", rvalue); | |
| 0943b3b7 YW |
907 | return 0; |
| 908 | } | |
| be9363cc | 909 | |
| 2ac41679 YW |
910 | if (usec != USEC_INFINITY && DIV_ROUND_UP(usec, USEC_PER_SEC) >= UINT32_MAX) { |
| 911 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
| 912 | "Lifetime is too long, ignoring assignment: %s", rvalue); | |
| 0943b3b7 | 913 | return 0; |
| be9363cc YW |
914 | } |
| 915 | ||
| 2ac41679 YW |
916 | if (streq(lvalue, "PreferredLifetimeSec")) |
| 917 | p->preferred_lifetime = usec; | |
| 918 | else if (streq(lvalue, "ValidLifetimeSec")) | |
| 919 | p->valid_lifetime = usec; | |
| 920 | else | |
| 921 | assert_not_reached(); | |
| 63295b42 | 922 | |
| 2ac41679 | 923 | TAKE_PTR(p); |
| 0943b3b7 | 924 | return 0; |
| a254fab2 YW |
925 | } |
| 926 | ||
| 0943b3b7 YW |
927 | int config_parse_prefix_metric( |
| 928 | const char *unit, | |
| 929 | const char *filename, | |
| 930 | unsigned line, | |
| 931 | const char *section, | |
| 932 | unsigned section_line, | |
| 933 | const char *lvalue, | |
| 934 | int ltype, | |
| 935 | const char *rvalue, | |
| 936 | void *data, | |
| 937 | void *userdata) { | |
| a254fab2 | 938 | |
| 0943b3b7 | 939 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; |
| 2ac41679 | 940 | Network *network = userdata; |
| 0943b3b7 | 941 | int r; |
| a254fab2 | 942 | |
| 0943b3b7 YW |
943 | assert(filename); |
| 944 | assert(section); | |
| 945 | assert(lvalue); | |
| 946 | assert(rvalue); | |
| 2ac41679 | 947 | assert(userdata); |
| a254fab2 | 948 | |
| 0943b3b7 | 949 | r = prefix_new_static(network, filename, section_line, &p); |
| a254fab2 | 950 | if (r < 0) |
| 0943b3b7 | 951 | return log_oom(); |
| a254fab2 | 952 | |
| 0943b3b7 YW |
953 | r = safe_atou32(rvalue, &p->route_metric); |
| 954 | if (r < 0) { | |
| 955 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
| 956 | "Failed to parse %s=, ignoring assignment: %s", | |
| 957 | lvalue, rvalue); | |
| 958 | return 0; | |
| a254fab2 YW |
959 | } |
| 960 | ||
| 0943b3b7 | 961 | TAKE_PTR(p); |
| 0943b3b7 | 962 | return 0; |
| a254fab2 YW |
963 | } |
| 964 | ||
| e609cd06 YW |
965 | int config_parse_prefix_token( |
| 966 | const char *unit, | |
| 967 | const char *filename, | |
| 968 | unsigned line, | |
| 969 | const char *section, | |
| 970 | unsigned section_line, | |
| 971 | const char *lvalue, | |
| 972 | int ltype, | |
| 973 | const char *rvalue, | |
| 974 | void *data, | |
| 975 | void *userdata) { | |
| 976 | ||
| 977 | _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL; | |
| 978 | Network *network = userdata; | |
| 979 | int r; | |
| 980 | ||
| 981 | assert(filename); | |
| 982 | assert(section); | |
| 983 | assert(lvalue); | |
| 984 | assert(rvalue); | |
| 985 | assert(userdata); | |
| 986 | ||
| 987 | r = prefix_new_static(network, filename, section_line, &p); | |
| 988 | if (r < 0) | |
| 989 | return log_oom(); | |
| 990 | ||
| 991 | r = config_parse_address_generation_type(unit, filename, line, section, section_line, | |
| 992 | lvalue, ltype, rvalue, &p->tokens, userdata); | |
| 993 | if (r < 0) | |
| 994 | return r; | |
| 995 | ||
| 996 | TAKE_PTR(p); | |
| 997 | return 0; | |
| 998 | } | |
| 999 | ||
| 0943b3b7 YW |
1000 | int config_parse_route_prefix( |
| 1001 | const char *unit, | |
| 1002 | const char *filename, | |
| 1003 | unsigned line, | |
| 1004 | const char *section, | |
| 1005 | unsigned section_line, | |
| 1006 | const char *lvalue, | |
| 1007 | int ltype, | |
| 1008 | const char *rvalue, | |
| 1009 | void *data, | |
| 1010 | void *userdata) { | |
| 1011 | ||
| 0943b3b7 | 1012 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; |
| 2ac41679 YW |
1013 | Network *network = userdata; |
| 1014 | union in_addr_union a; | |
| a254fab2 YW |
1015 | int r; |
| 1016 | ||
| 0943b3b7 YW |
1017 | assert(filename); |
| 1018 | assert(section); | |
| 1019 | assert(lvalue); | |
| 1020 | assert(rvalue); | |
| 2ac41679 | 1021 | assert(userdata); |
| a254fab2 | 1022 | |
| 0943b3b7 YW |
1023 | r = route_prefix_new_static(network, filename, section_line, &p); |
| 1024 | if (r < 0) | |
| 1025 | return log_oom(); | |
| 1026 | ||
| 2ac41679 | 1027 | r = in_addr_prefix_from_string(rvalue, AF_INET6, &a, &p->prefixlen); |
| 0943b3b7 | 1028 | if (r < 0) { |
| 2ac41679 YW |
1029 | log_syntax(unit, LOG_WARNING, filename, line, r, |
| 1030 | "Route prefix is invalid, ignoring assignment: %s", rvalue); | |
| a254fab2 | 1031 | return 0; |
| 0943b3b7 | 1032 | } |
| cf72568a YW |
1033 | |
| 1034 | (void) in6_addr_mask(&a.in6, p->prefixlen); | |
| 2ac41679 | 1035 | p->prefix = a.in6; |
| a254fab2 | 1036 | |
| 2ac41679 | 1037 | TAKE_PTR(p); |
| a254fab2 YW |
1038 | return 0; |
| 1039 | } | |
| 1040 | ||
| 0943b3b7 YW |
1041 | int config_parse_route_prefix_lifetime( |
| 1042 | const char *unit, | |
| 1043 | const char *filename, | |
| 1044 | unsigned line, | |
| 1045 | const char *section, | |
| 1046 | unsigned section_line, | |
| 1047 | const char *lvalue, | |
| 1048 | int ltype, | |
| 1049 | const char *rvalue, | |
| 1050 | void *data, | |
| 1051 | void *userdata) { | |
| a8d4a210 | 1052 | |
| 0943b3b7 | 1053 | _cleanup_(route_prefix_free_or_set_invalidp) RoutePrefix *p = NULL; |
| 2ac41679 | 1054 | Network *network = userdata; |
| 0943b3b7 | 1055 | usec_t usec; |
| 1d596fde YW |
1056 | int r; |
| 1057 | ||
| 0943b3b7 YW |
1058 | assert(filename); |
| 1059 | assert(section); | |
| 1060 | assert(lvalue); | |
| 1061 | assert(rvalue); | |
| 2ac41679 | 1062 | assert(userdata); |
| 1d596fde | 1063 | |
| 0943b3b7 | 1064 | r = route_prefix_new_static(network, filename, section_line, &p); |
| 1d596fde | 1065 | if (r < 0) |
| 0943b3b7 | 1066 | return log_oom(); |
| 1d596fde | 1067 | |
| 0943b3b7 YW |
1068 | r = parse_sec(rvalue, &usec); |
| 1069 | if (r < 0) { | |
| 1070 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
| 1071 | "Route lifetime is invalid, ignoring assignment: %s", rvalue); | |
| 1072 | return 0; | |
| 1073 | } | |
| 1d596fde | 1074 | |
| 2ac41679 YW |
1075 | if (usec != USEC_INFINITY && DIV_ROUND_UP(usec, USEC_PER_SEC) >= UINT32_MAX) { |
| 1076 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
| 1077 | "Lifetime is too long, ignoring assignment: %s", rvalue); | |
| 0943b3b7 YW |
1078 | return 0; |
| 1079 | } | |
| 1d596fde | 1080 | |
| 2ac41679 | 1081 | p->lifetime = usec; |
| 1d596fde | 1082 | |
| 2ac41679 | 1083 | TAKE_PTR(p); |
| 1d596fde YW |
1084 | return 0; |
| 1085 | } | |
| 1086 | ||
| ca5ad760 YW |
1087 | int config_parse_radv_dns( |
| 1088 | const char *unit, | |
| 1089 | const char *filename, | |
| 1090 | unsigned line, | |
| 1091 | const char *section, | |
| 1092 | unsigned section_line, | |
| 1093 | const char *lvalue, | |
| 1094 | int ltype, | |
| 1095 | const char *rvalue, | |
| 1096 | void *data, | |
| 1097 | void *userdata) { | |
| 1098 | ||
| 1099 | Network *n = data; | |
| ca5ad760 YW |
1100 | int r; |
| 1101 | ||
| 1102 | assert(filename); | |
| 1103 | assert(lvalue); | |
| 1104 | assert(rvalue); | |
| 1105 | ||
| a3c1a949 YW |
1106 | if (isempty(rvalue)) { |
| 1107 | n->n_router_dns = 0; | |
| 1108 | n->router_dns = mfree(n->router_dns); | |
| 1109 | return 0; | |
| 1110 | } | |
| 1111 | ||
| d96edb2c | 1112 | for (const char *p = rvalue;;) { |
| ca5ad760 YW |
1113 | _cleanup_free_ char *w = NULL; |
| 1114 | union in_addr_union a; | |
| 1115 | ||
| 1116 | r = extract_first_word(&p, &w, NULL, 0); | |
| 1117 | if (r == -ENOMEM) | |
| 1118 | return log_oom(); | |
| 1119 | if (r < 0) { | |
| d96edb2c | 1120 | log_syntax(unit, LOG_WARNING, filename, line, r, |
| ca5ad760 YW |
1121 | "Failed to extract word, ignoring: %s", rvalue); |
| 1122 | return 0; | |
| 1123 | } | |
| 1124 | if (r == 0) | |
| d96edb2c | 1125 | return 0; |
| ca5ad760 | 1126 | |
| fd3ef936 YW |
1127 | if (streq(w, "_link_local")) |
| 1128 | a = IN_ADDR_NULL; | |
| 1129 | else { | |
| 1130 | r = in_addr_from_string(AF_INET6, w, &a); | |
| 1131 | if (r < 0) { | |
| d96edb2c | 1132 | log_syntax(unit, LOG_WARNING, filename, line, r, |
| fd3ef936 YW |
1133 | "Failed to parse DNS server address, ignoring: %s", w); |
| 1134 | continue; | |
| 1135 | } | |
| ca5ad760 | 1136 | |
| fd3ef936 | 1137 | if (in_addr_is_null(AF_INET6, &a)) { |
| d96edb2c | 1138 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
| fd3ef936 YW |
1139 | "DNS server address is null, ignoring: %s", w); |
| 1140 | continue; | |
| 1141 | } | |
| 1142 | } | |
| ca5ad760 | 1143 | |
| fd3ef936 YW |
1144 | struct in6_addr *m; |
| 1145 | m = reallocarray(n->router_dns, n->n_router_dns + 1, sizeof(struct in6_addr)); | |
| 1146 | if (!m) | |
| 1147 | return log_oom(); | |
| ca5ad760 | 1148 | |
| fd3ef936 YW |
1149 | m[n->n_router_dns++] = a.in6; |
| 1150 | n->router_dns = m; | |
| ca5ad760 | 1151 | } |
| ca5ad760 YW |
1152 | } |
| 1153 | ||
| 1154 | int config_parse_radv_search_domains( | |
| 1155 | const char *unit, | |
| 1156 | const char *filename, | |
| 1157 | unsigned line, | |
| 1158 | const char *section, | |
| 1159 | unsigned section_line, | |
| 1160 | const char *lvalue, | |
| 1161 | int ltype, | |
| 1162 | const char *rvalue, | |
| 1163 | void *data, | |
| 1164 | void *userdata) { | |
| 1165 | ||
| 1166 | Network *n = data; | |
| ca5ad760 YW |
1167 | int r; |
| 1168 | ||
| 1169 | assert(filename); | |
| 1170 | assert(lvalue); | |
| 1171 | assert(rvalue); | |
| 1172 | ||
| a3c1a949 YW |
1173 | if (isempty(rvalue)) { |
| 1174 | n->router_search_domains = ordered_set_free(n->router_search_domains); | |
| 1175 | return 0; | |
| 1176 | } | |
| 1177 | ||
| d96edb2c | 1178 | for (const char *p = rvalue;;) { |
| ca5ad760 YW |
1179 | _cleanup_free_ char *w = NULL, *idna = NULL; |
| 1180 | ||
| 1181 | r = extract_first_word(&p, &w, NULL, 0); | |
| 1182 | if (r == -ENOMEM) | |
| 1183 | return log_oom(); | |
| 1184 | if (r < 0) { | |
| d96edb2c | 1185 | log_syntax(unit, LOG_WARNING, filename, line, r, |
| ca5ad760 YW |
1186 | "Failed to extract word, ignoring: %s", rvalue); |
| 1187 | return 0; | |
| 1188 | } | |
| 1189 | if (r == 0) | |
| d96edb2c | 1190 | return 0; |
| ca5ad760 YW |
1191 | |
| 1192 | r = dns_name_apply_idna(w, &idna); | |
| 1193 | if (r < 0) { | |
| d96edb2c | 1194 | log_syntax(unit, LOG_WARNING, filename, line, r, |
| ca5ad760 YW |
1195 | "Failed to apply IDNA to domain name '%s', ignoring: %m", w); |
| 1196 | continue; | |
| 1197 | } else if (r == 0) | |
| 1198 | /* transfer ownership to simplify subsequent operations */ | |
| 1199 | idna = TAKE_PTR(w); | |
| 1200 | ||
| 5e276772 | 1201 | r = ordered_set_ensure_allocated(&n->router_search_domains, &string_hash_ops_free); |
| ca5ad760 | 1202 | if (r < 0) |
| d96edb2c | 1203 | return log_oom(); |
| ca5ad760 YW |
1204 | |
| 1205 | r = ordered_set_consume(n->router_search_domains, TAKE_PTR(idna)); | |
| 1206 | if (r < 0) | |
| d96edb2c | 1207 | return log_oom(); |
| ca5ad760 | 1208 | } |
| ca5ad760 YW |
1209 | } |
| 1210 | ||
| 1211 | static const char * const radv_prefix_delegation_table[_RADV_PREFIX_DELEGATION_MAX] = { | |
| a8d4a210 | 1212 | [RADV_PREFIX_DELEGATION_NONE] = "no", |
| ca5ad760 | 1213 | [RADV_PREFIX_DELEGATION_STATIC] = "static", |
| a8d4a210 YW |
1214 | [RADV_PREFIX_DELEGATION_DHCP6] = "dhcpv6", |
| 1215 | [RADV_PREFIX_DELEGATION_BOTH] = "yes", | |
| ca5ad760 YW |
1216 | }; |
| 1217 | ||
| 1218 | DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN( | |
| 1219 | radv_prefix_delegation, | |
| 1220 | RADVPrefixDelegation, | |
| 1221 | RADV_PREFIX_DELEGATION_BOTH); | |
| 1222 | ||
| 27ff0490 YW |
1223 | int config_parse_router_prefix_delegation( |
| 1224 | const char *unit, | |
| 1225 | const char *filename, | |
| 1226 | unsigned line, | |
| 1227 | const char *section, | |
| 1228 | unsigned section_line, | |
| 1229 | const char *lvalue, | |
| 1230 | int ltype, | |
| 1231 | const char *rvalue, | |
| 1232 | void *data, | |
| 1233 | void *userdata) { | |
| 1234 | ||
| 1235 | RADVPrefixDelegation val, *ra = data; | |
| 1236 | int r; | |
| 1237 | ||
| 1238 | assert(filename); | |
| 1239 | assert(lvalue); | |
| 1240 | assert(rvalue); | |
| 1241 | assert(data); | |
| 1242 | ||
| 1243 | if (streq(lvalue, "IPv6SendRA")) { | |
| 1244 | r = parse_boolean(rvalue); | |
| 1245 | if (r < 0) { | |
| 1246 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
| 1247 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); | |
| 1248 | return 0; | |
| 1249 | } | |
| 1250 | ||
| 1251 | /* When IPv6SendRA= is enabled, only static prefixes are sent by default, and users | |
| 1252 | * need to explicitly enable DHCPv6PrefixDelegation=. */ | |
| 1253 | *ra = r ? RADV_PREFIX_DELEGATION_STATIC : RADV_PREFIX_DELEGATION_NONE; | |
| 1254 | return 0; | |
| 1255 | } | |
| 1256 | ||
| 1257 | /* For backward compatibility */ | |
| 1258 | val = radv_prefix_delegation_from_string(rvalue); | |
| 1259 | if (val < 0) { | |
| b98680b2 | 1260 | log_syntax(unit, LOG_WARNING, filename, line, val, |
| 27ff0490 YW |
1261 | "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue); |
| 1262 | return 0; | |
| 1263 | } | |
| 1264 | ||
| 1265 | *ra = val; | |
| 1266 | return 0; | |
| 1267 | } | |
| a8d4a210 | 1268 | |
| 4f1ac4a3 YW |
1269 | int config_parse_router_lifetime( |
| 1270 | const char *unit, | |
| 1271 | const char *filename, | |
| 1272 | unsigned line, | |
| 1273 | const char *section, | |
| 1274 | unsigned section_line, | |
| 1275 | const char *lvalue, | |
| 1276 | int ltype, | |
| 1277 | const char *rvalue, | |
| 1278 | void *data, | |
| 1279 | void *userdata) { | |
| 1280 | ||
| 1281 | usec_t usec, *lifetime = data; | |
| 1282 | int r; | |
| 1283 | ||
| 1284 | assert(filename); | |
| 1285 | assert(section); | |
| 1286 | assert(lvalue); | |
| 1287 | assert(rvalue); | |
| 1288 | assert(data); | |
| 1289 | ||
| 1290 | if (isempty(rvalue)) { | |
| 1291 | *lifetime = RADV_DEFAULT_ROUTER_LIFETIME_USEC; | |
| 1292 | return 0; | |
| 1293 | } | |
| 1294 | ||
| 1295 | r = parse_sec(rvalue, &usec); | |
| 1296 | if (r < 0) { | |
| 1297 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
| 1298 | "Failed to parse router lifetime, ignoring assignment: %s", rvalue); | |
| 1299 | return 0; | |
| 1300 | } | |
| 1301 | if (usec > 0) { | |
| 1302 | if (usec < RADV_MIN_ROUTER_LIFETIME_USEC) { | |
| 1303 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
| 1304 | "Router lifetime %s is too short, using %s.", | |
| 1305 | FORMAT_TIMESPAN(usec, USEC_PER_SEC), | |
| 1306 | FORMAT_TIMESPAN(RADV_MIN_ROUTER_LIFETIME_USEC, USEC_PER_SEC)); | |
| 1307 | usec = RADV_MIN_ROUTER_LIFETIME_USEC; | |
| 1308 | } else if (usec > RADV_MAX_ROUTER_LIFETIME_USEC) { | |
| 1309 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
| 1310 | "Router lifetime %s is too large, using %s.", | |
| 1311 | FORMAT_TIMESPAN(usec, USEC_PER_SEC), | |
| 1312 | FORMAT_TIMESPAN(RADV_MAX_ROUTER_LIFETIME_USEC, USEC_PER_SEC)); | |
| 1313 | usec = RADV_MAX_ROUTER_LIFETIME_USEC; | |
| 1314 | } | |
| 1315 | } | |
| 1316 | ||
| 1317 | *lifetime = usec; | |
| 1318 | return 0; | |
| 1319 | } | |
| 1320 | ||
| a8d4a210 YW |
1321 | int config_parse_router_preference( |
| 1322 | const char *unit, | |
| 1323 | const char *filename, | |
| 1324 | unsigned line, | |
| 1325 | const char *section, | |
| 1326 | unsigned section_line, | |
| 1327 | const char *lvalue, | |
| 1328 | int ltype, | |
| 1329 | const char *rvalue, | |
| 1330 | void *data, | |
| 1331 | void *userdata) { | |
| 1332 | ||
| ca5ad760 YW |
1333 | Network *network = userdata; |
| 1334 | ||
| 1335 | assert(filename); | |
| 1336 | assert(section); | |
| 1337 | assert(lvalue); | |
| 1338 | assert(rvalue); | |
| 1339 | assert(data); | |
| 1340 | ||
| 1341 | if (streq(rvalue, "high")) | |
| 1342 | network->router_preference = SD_NDISC_PREFERENCE_HIGH; | |
| 1343 | else if (STR_IN_SET(rvalue, "medium", "normal", "default")) | |
| 1344 | network->router_preference = SD_NDISC_PREFERENCE_MEDIUM; | |
| 1345 | else if (streq(rvalue, "low")) | |
| 1346 | network->router_preference = SD_NDISC_PREFERENCE_LOW; | |
| 1347 | else | |
| d96edb2c YW |
1348 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
| 1349 | "Invalid router preference, ignoring assignment: %s", rvalue); | |
| ca5ad760 YW |
1350 | |
| 1351 | return 0; | |
| 1352 | } |