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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
f579559b TG |
2 | |
3 | #include <net/if.h> | |
4 | ||
b5efdb8a | 5 | #include "alloc-util.h" |
f579559b | 6 | #include "conf-parser.h" |
12c2884c | 7 | #include "firewall-util.h" |
0a970718 | 8 | #include "memory-util.h" |
081aea25 | 9 | #include "missing_network.h" |
fc2f9534 | 10 | #include "netlink-util.h" |
6bedfcbb | 11 | #include "networkd-address.h" |
23f53b99 | 12 | #include "networkd-manager.h" |
6bedfcbb | 13 | #include "parse-util.h" |
3ac8e543 | 14 | #include "set.h" |
d31645ad | 15 | #include "socket-util.h" |
07630cea | 16 | #include "string-util.h" |
51517f9e | 17 | #include "strv.h" |
3ac8e543 | 18 | #include "utf8.h" |
f579559b | 19 | |
1b566071 | 20 | #define ADDRESSES_PER_LINK_MAX 2048U |
8c34b963 LP |
21 | #define STATIC_ADDRESSES_PER_NETWORK_MAX 1024U |
22 | ||
5ead5352 SS |
23 | int generate_ipv6_eui_64_address(Link *link, struct in6_addr *ret) { |
24 | assert(link); | |
25 | assert(ret); | |
26 | ||
27 | /* see RFC4291 section 2.5.1 */ | |
28 | ret->s6_addr[8] = link->mac.ether_addr_octet[0]; | |
29 | ret->s6_addr[8] ^= 1 << 1; | |
30 | ret->s6_addr[9] = link->mac.ether_addr_octet[1]; | |
31 | ret->s6_addr[10] = link->mac.ether_addr_octet[2]; | |
32 | ret->s6_addr[11] = 0xff; | |
33 | ret->s6_addr[12] = 0xfe; | |
34 | ret->s6_addr[13] = link->mac.ether_addr_octet[3]; | |
35 | ret->s6_addr[14] = link->mac.ether_addr_octet[4]; | |
36 | ret->s6_addr[15] = link->mac.ether_addr_octet[5]; | |
37 | ||
38 | return 0; | |
39 | } | |
40 | ||
f0213e37 | 41 | int address_new(Address **ret) { |
8e766630 | 42 | _cleanup_(address_freep) Address *address = NULL; |
f0213e37 | 43 | |
17f9c355 | 44 | address = new(Address, 1); |
f0213e37 TG |
45 | if (!address) |
46 | return -ENOMEM; | |
aba496a5 | 47 | |
17f9c355 YW |
48 | *address = (Address) { |
49 | .family = AF_UNSPEC, | |
50 | .scope = RT_SCOPE_UNIVERSE, | |
51 | .cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME, | |
52 | .cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME, | |
051e77ca | 53 | .duplicate_address_detection = ADDRESS_FAMILY_IPV6, |
de697db0 | 54 | .prefix_route = true, |
17f9c355 | 55 | }; |
f0213e37 | 56 | |
1cc6c93a | 57 | *ret = TAKE_PTR(address); |
f0213e37 TG |
58 | |
59 | return 0; | |
aba496a5 UTL |
60 | } |
61 | ||
9560e5b3 | 62 | static int address_new_static(Network *network, const char *filename, unsigned section_line, Address **ret) { |
8e766630 LP |
63 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
64 | _cleanup_(address_freep) Address *address = NULL; | |
f0213e37 | 65 | int r; |
f579559b | 66 | |
8c34b963 LP |
67 | assert(network); |
68 | assert(ret); | |
48317c39 | 69 | assert(!!filename == (section_line > 0)); |
8c34b963 | 70 | |
48317c39 | 71 | if (filename) { |
f4859fc7 SS |
72 | r = network_config_section_new(filename, section_line, &n); |
73 | if (r < 0) | |
74 | return r; | |
75 | ||
76 | address = hashmap_get(network->addresses_by_section, n); | |
6ae115c1 | 77 | if (address) { |
1cc6c93a | 78 | *ret = TAKE_PTR(address); |
6ae115c1 TG |
79 | |
80 | return 0; | |
81 | } | |
82 | } | |
83 | ||
8c34b963 LP |
84 | if (network->n_static_addresses >= STATIC_ADDRESSES_PER_NETWORK_MAX) |
85 | return -E2BIG; | |
86 | ||
f0213e37 TG |
87 | r = address_new(&address); |
88 | if (r < 0) | |
89 | return r; | |
801bd9e8 | 90 | |
0f7f2769 YW |
91 | address->network = network; |
92 | LIST_APPEND(addresses, network->static_addresses, address); | |
93 | network->n_static_addresses++; | |
94 | ||
48317c39 | 95 | if (filename) { |
1cc6c93a | 96 | address->section = TAKE_PTR(n); |
fcc48287 | 97 | |
3e570042 YW |
98 | r = hashmap_ensure_allocated(&network->addresses_by_section, &network_config_hash_ops); |
99 | if (r < 0) | |
100 | return r; | |
101 | ||
f7fe70ea SS |
102 | r = hashmap_put(network->addresses_by_section, address->section, address); |
103 | if (r < 0) | |
104 | return r; | |
6ae115c1 TG |
105 | } |
106 | ||
1cc6c93a | 107 | *ret = TAKE_PTR(address); |
f579559b TG |
108 | |
109 | return 0; | |
110 | } | |
111 | ||
112 | void address_free(Address *address) { | |
113 | if (!address) | |
114 | return; | |
115 | ||
f048a16b | 116 | if (address->network) { |
3d3d4255 | 117 | LIST_REMOVE(addresses, address->network->static_addresses, address); |
8c34b963 LP |
118 | assert(address->network->n_static_addresses > 0); |
119 | address->network->n_static_addresses--; | |
f579559b | 120 | |
de4224aa | 121 | if (address->section) |
f4859fc7 | 122 | hashmap_remove(address->network->addresses_by_section, address->section); |
f048a16b | 123 | } |
6ae115c1 | 124 | |
051e77ca | 125 | if (address->link && !address->acd) { |
cf1d700d | 126 | set_remove(address->link->addresses, address); |
adda1ed9 | 127 | set_remove(address->link->addresses_foreign, address); |
e5526518 | 128 | set_remove(address->link->static_addresses, address); |
6e537f62 YW |
129 | if (address->link->dhcp_address == address) |
130 | address->link->dhcp_address = NULL; | |
131 | if (address->link->dhcp_address_old == address) | |
132 | address->link->dhcp_address_old = NULL; | |
1633c457 YW |
133 | set_remove(address->link->dhcp6_addresses, address); |
134 | set_remove(address->link->dhcp6_addresses_old, address); | |
135 | set_remove(address->link->dhcp6_pd_addresses, address); | |
136 | set_remove(address->link->dhcp6_pd_addresses_old, address); | |
69203fba YW |
137 | set_remove(address->link->ndisc_addresses, address); |
138 | set_remove(address->link->ndisc_addresses_old, address); | |
f150100a SS |
139 | |
140 | if (in_addr_equal(AF_INET6, &address->in_addr, (const union in_addr_union *) &address->link->ipv6ll_address)) | |
141 | memzero(&address->link->ipv6ll_address, sizeof(struct in6_addr)); | |
adda1ed9 | 142 | } |
cf1d700d | 143 | |
051e77ca SS |
144 | sd_ipv4acd_unref(address->acd); |
145 | ||
de4224aa YW |
146 | network_config_section_free(address->section); |
147 | free(address->label); | |
f579559b TG |
148 | free(address); |
149 | } | |
150 | ||
24be9181 ZJS |
151 | static uint32_t address_prefix(const Address *a) { |
152 | assert(a); | |
153 | ||
154 | /* make sure we don't try to shift by 32. | |
155 | * See ISO/IEC 9899:TC3 § 6.5.7.3. */ | |
156 | if (a->prefixlen == 0) | |
157 | return 0; | |
158 | ||
159 | if (a->in_addr_peer.in.s_addr != 0) | |
160 | return be32toh(a->in_addr_peer.in.s_addr) >> (32 - a->prefixlen); | |
161 | else | |
162 | return be32toh(a->in_addr.in.s_addr) >> (32 - a->prefixlen); | |
163 | } | |
164 | ||
7a08d314 | 165 | static void address_hash_func(const Address *a, struct siphash *state) { |
3ac8e543 TG |
166 | assert(a); |
167 | ||
168 | siphash24_compress(&a->family, sizeof(a->family), state); | |
169 | ||
170 | switch (a->family) { | |
171 | case AF_INET: | |
172 | siphash24_compress(&a->prefixlen, sizeof(a->prefixlen), state); | |
173 | ||
174 | /* peer prefix */ | |
24be9181 ZJS |
175 | uint32_t prefix = address_prefix(a); |
176 | siphash24_compress(&prefix, sizeof(prefix), state); | |
3ac8e543 | 177 | |
4831981d | 178 | _fallthrough_; |
3ac8e543 TG |
179 | case AF_INET6: |
180 | /* local address */ | |
181 | siphash24_compress(&a->in_addr, FAMILY_ADDRESS_SIZE(a->family), state); | |
182 | ||
183 | break; | |
184 | default: | |
185 | /* treat any other address family as AF_UNSPEC */ | |
186 | break; | |
187 | } | |
188 | } | |
189 | ||
7a08d314 | 190 | static int address_compare_func(const Address *a1, const Address *a2) { |
a0edd02e | 191 | int r; |
3ac8e543 | 192 | |
a0edd02e FB |
193 | r = CMP(a1->family, a2->family); |
194 | if (r != 0) | |
195 | return r; | |
3ac8e543 TG |
196 | |
197 | switch (a1->family) { | |
198 | /* use the same notion of equality as the kernel does */ | |
199 | case AF_INET: | |
a0edd02e FB |
200 | r = CMP(a1->prefixlen, a2->prefixlen); |
201 | if (r != 0) | |
202 | return r; | |
3ac8e543 | 203 | |
24be9181 ZJS |
204 | uint32_t prefix1 = address_prefix(a1); |
205 | uint32_t prefix2 = address_prefix(a2); | |
206 | r = CMP(prefix1, prefix2); | |
207 | if (r != 0) | |
208 | return r; | |
3ac8e543 | 209 | |
4831981d | 210 | _fallthrough_; |
3ac8e543 TG |
211 | case AF_INET6: |
212 | return memcmp(&a1->in_addr, &a2->in_addr, FAMILY_ADDRESS_SIZE(a1->family)); | |
213 | default: | |
214 | /* treat any other address family as AF_UNSPEC */ | |
215 | return 0; | |
216 | } | |
217 | } | |
218 | ||
8eec0b9d | 219 | DEFINE_HASH_OPS_WITH_KEY_DESTRUCTOR(address_hash_ops, Address, address_hash_func, address_compare_func, address_free); |
3ac8e543 TG |
220 | |
221 | bool address_equal(Address *a1, Address *a2) { | |
222 | if (a1 == a2) | |
223 | return true; | |
224 | ||
225 | if (!a1 || !a2) | |
226 | return false; | |
227 | ||
228 | return address_compare_func(a1, a2) == 0; | |
229 | } | |
230 | ||
91b5f997 TG |
231 | static int address_establish(Address *address, Link *link) { |
232 | bool masq; | |
233 | int r; | |
234 | ||
235 | assert(address); | |
236 | assert(link); | |
237 | ||
238 | masq = link->network && | |
fcf50cff TG |
239 | link->network->ip_masquerade && |
240 | address->family == AF_INET && | |
241 | address->scope < RT_SCOPE_LINK; | |
91b5f997 TG |
242 | |
243 | /* Add firewall entry if this is requested */ | |
244 | if (address->ip_masquerade_done != masq) { | |
245 | union in_addr_union masked = address->in_addr; | |
246 | in_addr_mask(address->family, &masked, address->prefixlen); | |
247 | ||
248 | r = fw_add_masquerade(masq, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); | |
249 | if (r < 0) | |
7750b796 | 250 | return r; |
91b5f997 TG |
251 | |
252 | address->ip_masquerade_done = masq; | |
253 | } | |
254 | ||
255 | return 0; | |
256 | } | |
257 | ||
adda1ed9 TG |
258 | static int address_add_internal(Link *link, Set **addresses, |
259 | int family, | |
260 | const union in_addr_union *in_addr, | |
261 | unsigned char prefixlen, | |
262 | Address **ret) { | |
8e766630 | 263 | _cleanup_(address_freep) Address *address = NULL; |
cf1d700d TG |
264 | int r; |
265 | ||
266 | assert(link); | |
adda1ed9 | 267 | assert(addresses); |
054f0db4 | 268 | assert(in_addr); |
054f0db4 TG |
269 | |
270 | r = address_new(&address); | |
271 | if (r < 0) | |
272 | return r; | |
273 | ||
274 | address->family = family; | |
275 | address->in_addr = *in_addr; | |
276 | address->prefixlen = prefixlen; | |
63bbe5c7 TG |
277 | /* Consider address tentative until we get the real flags from the kernel */ |
278 | address->flags = IFA_F_TENTATIVE; | |
cf1d700d | 279 | |
de7fef4b | 280 | r = set_ensure_put(addresses, &address_hash_ops, address); |
cf1d700d TG |
281 | if (r < 0) |
282 | return r; | |
75a302b5 YW |
283 | if (r == 0) |
284 | return -EEXIST; | |
cf1d700d TG |
285 | |
286 | address->link = link; | |
287 | ||
adda1ed9 TG |
288 | if (ret) |
289 | *ret = address; | |
de7fef4b | 290 | TAKE_PTR(address); |
cf1d700d TG |
291 | return 0; |
292 | } | |
293 | ||
adda1ed9 TG |
294 | int address_add_foreign(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
295 | return address_add_internal(link, &link->addresses_foreign, family, in_addr, prefixlen, ret); | |
296 | } | |
297 | ||
c4a03a56 | 298 | int address_add(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
cab974b0 | 299 | Address *address; |
e7780c8d TG |
300 | int r; |
301 | ||
cab974b0 TG |
302 | r = address_get(link, family, in_addr, prefixlen, &address); |
303 | if (r == -ENOENT) { | |
304 | /* Address does not exist, create a new one */ | |
305 | r = address_add_internal(link, &link->addresses, family, in_addr, prefixlen, &address); | |
306 | if (r < 0) | |
307 | return r; | |
308 | } else if (r == 0) { | |
309 | /* Take over a foreign address */ | |
de7fef4b | 310 | r = set_ensure_put(&link->addresses, &address_hash_ops, address); |
cab974b0 TG |
311 | if (r < 0) |
312 | return r; | |
313 | ||
314 | set_remove(link->addresses_foreign, address); | |
315 | } else if (r == 1) { | |
316 | /* Already exists, do nothing */ | |
317 | ; | |
318 | } else | |
e7780c8d TG |
319 | return r; |
320 | ||
cab974b0 TG |
321 | if (ret) |
322 | *ret = address; | |
e7780c8d TG |
323 | |
324 | return 0; | |
adda1ed9 TG |
325 | } |
326 | ||
fcf50cff | 327 | static int address_release(Address *address) { |
5a8bcb67 LP |
328 | int r; |
329 | ||
330 | assert(address); | |
fcf50cff | 331 | assert(address->link); |
5a8bcb67 | 332 | |
91b5f997 TG |
333 | /* Remove masquerading firewall entry if it was added */ |
334 | if (address->ip_masquerade_done) { | |
5a8bcb67 LP |
335 | union in_addr_union masked = address->in_addr; |
336 | in_addr_mask(address->family, &masked, address->prefixlen); | |
337 | ||
91b5f997 | 338 | r = fw_add_masquerade(false, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); |
5a8bcb67 | 339 | if (r < 0) |
7750b796 | 340 | return r; |
5a8bcb67 | 341 | |
91b5f997 | 342 | address->ip_masquerade_done = false; |
5a8bcb67 LP |
343 | } |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
889b550f LP |
348 | int address_update( |
349 | Address *address, | |
350 | unsigned char flags, | |
351 | unsigned char scope, | |
352 | const struct ifa_cacheinfo *cinfo) { | |
353 | ||
36c32f61 | 354 | bool ready; |
e7ab854c | 355 | int r; |
36c32f61 TG |
356 | |
357 | assert(address); | |
ea121d8f | 358 | assert(address->link); |
36c32f61 TG |
359 | assert(cinfo); |
360 | ||
361 | ready = address_is_ready(address); | |
362 | ||
363 | address->flags = flags; | |
364 | address->scope = scope; | |
365 | address->cinfo = *cinfo; | |
366 | ||
ea121d8f YW |
367 | if (IN_SET(address->link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) |
368 | return 0; | |
369 | ||
959f65d3 | 370 | link_update_operstate(address->link, true); |
c8f7123e | 371 | link_check_ready(address->link); |
7209086d | 372 | |
97f00074 YW |
373 | if (!ready && address_is_ready(address)) { |
374 | if (address->callback) { | |
375 | r = address->callback(address); | |
376 | if (r < 0) | |
377 | return r; | |
378 | } | |
7209086d | 379 | |
97f00074 YW |
380 | if (address->family == AF_INET6 && |
381 | in_addr_is_link_local(AF_INET6, &address->in_addr) > 0 && | |
382 | IN6_IS_ADDR_UNSPECIFIED(&address->link->ipv6ll_address) > 0) { | |
383 | ||
384 | r = link_ipv6ll_gained(address->link, &address->in_addr.in6); | |
385 | if (r < 0) | |
386 | return r; | |
387 | } | |
a3a019e1 | 388 | } |
36c32f61 TG |
389 | |
390 | return 0; | |
391 | } | |
392 | ||
91b5f997 | 393 | int address_drop(Address *address) { |
8012cd39 TG |
394 | Link *link; |
395 | bool ready; | |
7750b796 | 396 | int r; |
8012cd39 | 397 | |
5a8bcb67 | 398 | assert(address); |
91b5f997 | 399 | |
8012cd39 TG |
400 | ready = address_is_ready(address); |
401 | link = address->link; | |
402 | ||
7750b796 YW |
403 | r = address_release(address); |
404 | if (r < 0) | |
405 | log_link_warning_errno(link, r, "Failed to disable IP masquerading, ignoring: %m"); | |
406 | ||
91b5f997 TG |
407 | address_free(address); |
408 | ||
959f65d3 | 409 | link_update_operstate(link, true); |
84de38c5 | 410 | |
8012cd39 TG |
411 | if (link && !ready) |
412 | link_check_ready(link); | |
413 | ||
91b5f997 TG |
414 | return 0; |
415 | } | |
416 | ||
1b566071 LP |
417 | int address_get(Link *link, |
418 | int family, | |
419 | const union in_addr_union *in_addr, | |
420 | unsigned char prefixlen, | |
421 | Address **ret) { | |
422 | ||
423 | Address address, *existing; | |
91b5f997 | 424 | |
5a8bcb67 | 425 | assert(link); |
91b5f997 | 426 | assert(in_addr); |
5a8bcb67 | 427 | |
1b566071 LP |
428 | address = (Address) { |
429 | .family = family, | |
430 | .in_addr = *in_addr, | |
431 | .prefixlen = prefixlen, | |
432 | }; | |
5a8bcb67 | 433 | |
91b5f997 | 434 | existing = set_get(link->addresses, &address); |
cab974b0 | 435 | if (existing) { |
1b566071 LP |
436 | if (ret) |
437 | *ret = existing; | |
cab974b0 | 438 | return 1; |
adda1ed9 | 439 | } |
5a8bcb67 | 440 | |
1b566071 LP |
441 | existing = set_get(link->addresses_foreign, &address); |
442 | if (existing) { | |
443 | if (ret) | |
444 | *ret = existing; | |
445 | return 0; | |
446 | } | |
5a8bcb67 | 447 | |
1b566071 | 448 | return -ENOENT; |
5a8bcb67 LP |
449 | } |
450 | ||
5eec0a08 YW |
451 | static bool address_exists_internal(Set *addresses, int family, const union in_addr_union *in_addr) { |
452 | Address *address; | |
453 | Iterator i; | |
454 | ||
455 | SET_FOREACH(address, addresses, i) { | |
456 | if (address->family != family) | |
457 | continue; | |
458 | if (in_addr_equal(address->family, &address->in_addr, in_addr)) | |
459 | return true; | |
460 | } | |
461 | ||
462 | return false; | |
463 | } | |
464 | ||
465 | bool address_exists(Link *link, int family, const union in_addr_union *in_addr) { | |
466 | assert(link); | |
467 | assert(IN_SET(family, AF_INET, AF_INET6)); | |
468 | assert(in_addr); | |
469 | ||
470 | if (address_exists_internal(link->addresses, family, in_addr)) | |
471 | return true; | |
472 | if (address_exists_internal(link->addresses_foreign, family, in_addr)) | |
473 | return true; | |
474 | return false; | |
475 | } | |
476 | ||
302a796f | 477 | static int address_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { |
63ae0569 YW |
478 | int r; |
479 | ||
480 | assert(m); | |
481 | assert(link); | |
482 | assert(link->ifname); | |
483 | ||
484 | if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
485 | return 1; | |
486 | ||
487 | r = sd_netlink_message_get_errno(m); | |
488 | if (r < 0 && r != -EADDRNOTAVAIL) | |
5ecb131d | 489 | log_link_message_warning_errno(link, m, r, "Could not drop address"); |
93b0b88c YW |
490 | else |
491 | (void) manager_rtnl_process_address(rtnl, m, link->manager); | |
63ae0569 YW |
492 | |
493 | return 1; | |
494 | } | |
495 | ||
483d099e ZJS |
496 | int address_remove( |
497 | Address *address, | |
498 | Link *link, | |
302a796f | 499 | link_netlink_message_handler_t callback) { |
483d099e | 500 | |
4afd3348 | 501 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
407fe036 TG |
502 | int r; |
503 | ||
504 | assert(address); | |
4c701096 | 505 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
407fe036 TG |
506 | assert(link); |
507 | assert(link->ifindex > 0); | |
508 | assert(link->manager); | |
509 | assert(link->manager->rtnl); | |
510 | ||
30226d27 | 511 | if (DEBUG_LOGGING) { |
7750b796 YW |
512 | _cleanup_free_ char *b = NULL; |
513 | ||
514 | (void) in_addr_to_string(address->family, &address->in_addr, &b); | |
515 | log_link_debug(link, "Removing address %s", strna(b)); | |
30226d27 TJ |
516 | } |
517 | ||
151b9b96 LP |
518 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDR, |
519 | link->ifindex, address->family); | |
eb56eb9b | 520 | if (r < 0) |
7750b796 | 521 | return log_link_error_errno(link, r, "Could not allocate RTM_DELADDR message: %m"); |
407fe036 | 522 | |
5a723174 | 523 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b | 524 | if (r < 0) |
7750b796 | 525 | return log_link_error_errno(link, r, "Could not set prefixlen: %m"); |
5a723174 | 526 | |
43409486 | 527 | r = netlink_message_append_in_addr_union(req, IFA_LOCAL, address->family, &address->in_addr); |
eb56eb9b | 528 | if (r < 0) |
7750b796 | 529 | return log_link_error_errno(link, r, "Could not append IFA_LOCAL attribute: %m"); |
407fe036 | 530 | |
302a796f YW |
531 | r = netlink_call_async(link->manager->rtnl, NULL, req, |
532 | callback ?: address_remove_handler, | |
533 | link_netlink_destroy_callback, link); | |
eb56eb9b | 534 | if (r < 0) |
7750b796 | 535 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
407fe036 | 536 | |
563c69c6 TG |
537 | link_ref(link); |
538 | ||
407fe036 TG |
539 | return 0; |
540 | } | |
541 | ||
11bf3cce | 542 | static int address_acquire(Link *link, Address *original, Address **ret) { |
67a46833 | 543 | union in_addr_union in_addr = IN_ADDR_NULL; |
11bf3cce | 544 | struct in_addr broadcast = {}; |
8e766630 | 545 | _cleanup_(address_freep) Address *na = NULL; |
11bf3cce LP |
546 | int r; |
547 | ||
548 | assert(link); | |
549 | assert(original); | |
550 | assert(ret); | |
551 | ||
552 | /* Something useful was configured? just use it */ | |
7e43ebfb YW |
553 | r = in_addr_is_null(original->family, &original->in_addr); |
554 | if (r <= 0) | |
555 | return r; | |
11bf3cce LP |
556 | |
557 | /* The address is configured to be 0.0.0.0 or [::] by the user? | |
558 | * Then let's acquire something more useful from the pool. */ | |
559 | r = manager_address_pool_acquire(link->manager, original->family, original->prefixlen, &in_addr); | |
6a7a4e4d | 560 | if (r < 0) |
7750b796 YW |
561 | return r; |
562 | if (r == 0) | |
11bf3cce | 563 | return -EBUSY; |
11bf3cce LP |
564 | |
565 | if (original->family == AF_INET) { | |
d076c6f9 | 566 | /* Pick first address in range for ourselves ... */ |
11bf3cce LP |
567 | in_addr.in.s_addr = in_addr.in.s_addr | htobe32(1); |
568 | ||
569 | /* .. and use last as broadcast address */ | |
e87e2b78 SS |
570 | if (original->prefixlen > 30) |
571 | broadcast.s_addr = 0; | |
572 | else | |
573 | broadcast.s_addr = in_addr.in.s_addr | htobe32(0xFFFFFFFFUL >> original->prefixlen); | |
11bf3cce LP |
574 | } else if (original->family == AF_INET6) |
575 | in_addr.in6.s6_addr[15] |= 1; | |
576 | ||
f0213e37 | 577 | r = address_new(&na); |
11bf3cce LP |
578 | if (r < 0) |
579 | return r; | |
580 | ||
581 | na->family = original->family; | |
582 | na->prefixlen = original->prefixlen; | |
583 | na->scope = original->scope; | |
584 | na->cinfo = original->cinfo; | |
585 | ||
586 | if (original->label) { | |
587 | na->label = strdup(original->label); | |
0099bc15 | 588 | if (!na->label) |
11bf3cce | 589 | return -ENOMEM; |
11bf3cce LP |
590 | } |
591 | ||
592 | na->broadcast = broadcast; | |
593 | na->in_addr = in_addr; | |
594 | ||
595 | LIST_PREPEND(addresses, link->pool_addresses, na); | |
596 | ||
1cc6c93a | 597 | *ret = TAKE_PTR(na); |
0099bc15 | 598 | |
11bf3cce LP |
599 | return 0; |
600 | } | |
601 | ||
1b566071 LP |
602 | int address_configure( |
603 | Address *address, | |
604 | Link *link, | |
302a796f | 605 | link_netlink_message_handler_t callback, |
80b0e860 YW |
606 | bool update, |
607 | Address **ret) { | |
1b566071 | 608 | |
4afd3348 | 609 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
80b0e860 | 610 | Address *a; |
f579559b TG |
611 | int r; |
612 | ||
c166a070 | 613 | assert(address); |
4c701096 | 614 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
c166a070 TG |
615 | assert(link); |
616 | assert(link->ifindex > 0); | |
f882c247 | 617 | assert(link->manager); |
c166a070 | 618 | assert(link->manager->rtnl); |
bd1175bc | 619 | assert(callback); |
f882c247 | 620 | |
1b566071 LP |
621 | /* If this is a new address, then refuse adding more than the limit */ |
622 | if (address_get(link, address->family, &address->in_addr, address->prefixlen, NULL) <= 0 && | |
623 | set_size(link->addresses) >= ADDRESSES_PER_LINK_MAX) | |
7750b796 YW |
624 | return log_link_error_errno(link, SYNTHETIC_ERRNO(E2BIG), |
625 | "Too many addresses are configured, refusing: %m"); | |
1b566071 | 626 | |
11bf3cce LP |
627 | r = address_acquire(link, address, &address); |
628 | if (r < 0) | |
7750b796 | 629 | return log_link_error_errno(link, r, "Failed to acquire an address from pool: %m"); |
11bf3cce | 630 | |
3606ca65 YW |
631 | if (DEBUG_LOGGING) { |
632 | _cleanup_free_ char *str = NULL; | |
633 | ||
634 | (void) in_addr_to_string(address->family, &address->in_addr, &str); | |
635 | log_link_debug(link, "%s address: %s", update ? "Updating" : "Configuring", strna(str)); | |
636 | } | |
637 | ||
66669078 TG |
638 | if (update) |
639 | r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req, | |
640 | link->ifindex, address->family); | |
641 | else | |
642 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_NEWADDR, | |
643 | link->ifindex, address->family); | |
eb56eb9b | 644 | if (r < 0) |
7750b796 | 645 | return log_link_error_errno(link, r, "Could not allocate RTM_NEWADDR message: %m"); |
f579559b | 646 | |
5a723174 | 647 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b | 648 | if (r < 0) |
7750b796 | 649 | return log_link_error_errno(link, r, "Could not set prefixlen: %m"); |
5a723174 | 650 | |
851c9f82 PF |
651 | address->flags |= IFA_F_PERMANENT; |
652 | ||
e63be084 SS |
653 | if (address->home_address) |
654 | address->flags |= IFA_F_HOMEADDRESS; | |
655 | ||
051e77ca | 656 | if (!FLAGS_SET(address->duplicate_address_detection, ADDRESS_FAMILY_IPV6)) |
e63be084 SS |
657 | address->flags |= IFA_F_NODAD; |
658 | ||
659 | if (address->manage_temporary_address) | |
660 | address->flags |= IFA_F_MANAGETEMPADDR; | |
661 | ||
de697db0 | 662 | if (!address->prefix_route) |
e63be084 SS |
663 | address->flags |= IFA_F_NOPREFIXROUTE; |
664 | ||
665 | if (address->autojoin) | |
666 | address->flags |= IFA_F_MCAUTOJOIN; | |
667 | ||
851c9f82 | 668 | r = sd_rtnl_message_addr_set_flags(req, (address->flags & 0xff)); |
eb56eb9b | 669 | if (r < 0) |
7750b796 | 670 | return log_link_error_errno(link, r, "Could not set flags: %m"); |
5a723174 | 671 | |
851c9f82 | 672 | if (address->flags & ~0xff) { |
1c4baffc | 673 | r = sd_netlink_message_append_u32(req, IFA_FLAGS, address->flags); |
851c9f82 | 674 | if (r < 0) |
7750b796 | 675 | return log_link_error_errno(link, r, "Could not set extended flags: %m"); |
851c9f82 PF |
676 | } |
677 | ||
5c1d3fc9 | 678 | r = sd_rtnl_message_addr_set_scope(req, address->scope); |
eb56eb9b | 679 | if (r < 0) |
7750b796 | 680 | return log_link_error_errno(link, r, "Could not set scope: %m"); |
5a723174 | 681 | |
43409486 | 682 | r = netlink_message_append_in_addr_union(req, IFA_LOCAL, address->family, &address->in_addr); |
eb56eb9b | 683 | if (r < 0) |
7750b796 | 684 | return log_link_error_errno(link, r, "Could not append IFA_LOCAL attribute: %m"); |
f579559b | 685 | |
d40b01e4 | 686 | if (in_addr_is_null(address->family, &address->in_addr_peer) == 0) { |
43409486 | 687 | r = netlink_message_append_in_addr_union(req, IFA_ADDRESS, address->family, &address->in_addr_peer); |
eb56eb9b | 688 | if (r < 0) |
7750b796 | 689 | return log_link_error_errno(link, r, "Could not append IFA_ADDRESS attribute: %m"); |
66e0bb33 YW |
690 | } else if (address->family == AF_INET && address->prefixlen <= 30) { |
691 | r = sd_netlink_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast); | |
692 | if (r < 0) | |
7750b796 | 693 | return log_link_error_errno(link, r, "Could not append IFA_BROADCAST attribute: %m"); |
f579559b TG |
694 | } |
695 | ||
696 | if (address->label) { | |
1c4baffc | 697 | r = sd_netlink_message_append_string(req, IFA_LABEL, address->label); |
eb56eb9b | 698 | if (r < 0) |
7750b796 | 699 | return log_link_error_errno(link, r, "Could not append IFA_LABEL attribute: %m"); |
f579559b TG |
700 | } |
701 | ||
66e0bb33 | 702 | r = sd_netlink_message_append_cache_info(req, IFA_CACHEINFO, &address->cinfo); |
eb56eb9b | 703 | if (r < 0) |
7750b796 | 704 | return log_link_error_errno(link, r, "Could not append IFA_CACHEINFO attribute: %m"); |
68ceb9df | 705 | |
fcf50cff | 706 | r = address_establish(address, link); |
eb56eb9b | 707 | if (r < 0) |
7750b796 | 708 | log_link_warning_errno(link, r, "Could not enable IP masquerading, ignoring: %m"); |
fcf50cff | 709 | |
dfef713f | 710 | r = netlink_call_async(link->manager->rtnl, NULL, req, callback, link_netlink_destroy_callback, link); |
fcf50cff TG |
711 | if (r < 0) { |
712 | address_release(address); | |
7750b796 | 713 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
fcf50cff | 714 | } |
f579559b | 715 | |
563c69c6 TG |
716 | link_ref(link); |
717 | ||
dfef713f | 718 | if (address->family == AF_INET6 && !in_addr_is_null(address->family, &address->in_addr_peer)) |
80b0e860 | 719 | r = address_add(link, address->family, &address->in_addr_peer, address->prefixlen, &a); |
dfef713f | 720 | else |
80b0e860 | 721 | r = address_add(link, address->family, &address->in_addr, address->prefixlen, &a); |
adda1ed9 TG |
722 | if (r < 0) { |
723 | address_release(address); | |
7750b796 | 724 | return log_link_error_errno(link, r, "Could not add address: %m"); |
adda1ed9 TG |
725 | } |
726 | ||
051e77ca SS |
727 | if (address->acd) { |
728 | assert(address->family == AF_INET); | |
729 | if (DEBUG_LOGGING) { | |
730 | _cleanup_free_ char *pretty = NULL; | |
731 | ||
732 | (void) in_addr_to_string(address->family, &address->in_addr, &pretty); | |
98b02994 | 733 | log_link_debug(link, "Starting IPv4ACD client. Probing address %s", strna(pretty)); |
051e77ca SS |
734 | } |
735 | ||
e92b60b2 | 736 | r = sd_ipv4acd_start(address->acd, true); |
051e77ca SS |
737 | if (r < 0) |
738 | log_link_warning_errno(link, r, "Failed to start IPv4ACD client, ignoring: %m"); | |
739 | } | |
740 | ||
80b0e860 YW |
741 | if (ret) |
742 | *ret = a; | |
743 | ||
54a1a535 | 744 | return 1; |
f579559b TG |
745 | } |
746 | ||
051e77ca SS |
747 | static void static_address_on_acd(sd_ipv4acd *acd, int event, void *userdata) { |
748 | _cleanup_free_ char *pretty = NULL; | |
749 | Address *address; | |
750 | Link *link; | |
751 | int r; | |
752 | ||
753 | assert(acd); | |
754 | assert(userdata); | |
755 | ||
756 | address = (Address *) userdata; | |
757 | link = address->link; | |
758 | ||
759 | (void) in_addr_to_string(address->family, &address->in_addr, &pretty); | |
760 | switch (event) { | |
761 | case SD_IPV4ACD_EVENT_STOP: | |
762 | log_link_debug(link, "Stopping ACD client..."); | |
763 | return; | |
764 | ||
765 | case SD_IPV4ACD_EVENT_BIND: | |
766 | log_link_debug(link, "Successfully claimed address %s", strna(pretty)); | |
767 | link_check_ready(link); | |
768 | break; | |
769 | ||
770 | case SD_IPV4ACD_EVENT_CONFLICT: | |
771 | log_link_warning(link, "DAD conflict. Dropping address %s", strna(pretty)); | |
772 | r = address_remove(address, link, NULL); | |
773 | if (r < 0) | |
774 | log_link_error_errno(link, r, "Failed to drop DAD conflicted address %s", strna(pretty));; | |
775 | ||
776 | link_check_ready(link); | |
777 | break; | |
778 | ||
779 | default: | |
780 | assert_not_reached("Invalid IPv4ACD event."); | |
781 | } | |
782 | ||
783 | sd_ipv4acd_stop(acd); | |
784 | ||
785 | return; | |
786 | } | |
787 | ||
788 | int configure_ipv4_duplicate_address_detection(Link *link, Address *address) { | |
789 | int r; | |
790 | ||
791 | assert(link); | |
792 | assert(address); | |
793 | assert(address->family == AF_INET); | |
794 | assert(!address->link && address->network); | |
795 | ||
796 | address->link = link; | |
797 | ||
798 | r = sd_ipv4acd_new(&address->acd); | |
799 | if (r < 0) | |
800 | return r; | |
801 | ||
802 | r = sd_ipv4acd_attach_event(address->acd, NULL, 0); | |
803 | if (r < 0) | |
804 | return r; | |
805 | ||
806 | r = sd_ipv4acd_set_ifindex(address->acd, link->ifindex); | |
807 | if (r < 0) | |
808 | return r; | |
809 | ||
810 | r = sd_ipv4acd_set_mac(address->acd, &link->mac); | |
811 | if (r < 0) | |
812 | return r; | |
813 | ||
814 | r = sd_ipv4acd_set_address(address->acd, &address->in_addr.in); | |
815 | if (r < 0) | |
816 | return r; | |
817 | ||
818 | r = sd_ipv4acd_set_callback(address->acd, static_address_on_acd, address); | |
819 | if (r < 0) | |
820 | return r; | |
821 | ||
822 | return 0; | |
823 | } | |
824 | ||
44e7b949 LP |
825 | int config_parse_broadcast( |
826 | const char *unit, | |
eb0ea358 TG |
827 | const char *filename, |
828 | unsigned line, | |
829 | const char *section, | |
830 | unsigned section_line, | |
831 | const char *lvalue, | |
832 | int ltype, | |
833 | const char *rvalue, | |
834 | void *data, | |
835 | void *userdata) { | |
44e7b949 | 836 | |
eb0ea358 | 837 | Network *network = userdata; |
fcbf4cb7 | 838 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
eb0ea358 TG |
839 | int r; |
840 | ||
841 | assert(filename); | |
842 | assert(section); | |
843 | assert(lvalue); | |
844 | assert(rvalue); | |
845 | assert(data); | |
846 | ||
f4859fc7 | 847 | r = address_new_static(network, filename, section_line, &n); |
d96edb2c YW |
848 | if (r == -ENOMEM) |
849 | return log_oom(); | |
850 | if (r < 0) { | |
851 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
852 | "Failed to allocate new address, ignoring assignment: %m"); | |
853 | return 0; | |
854 | } | |
eb0ea358 | 855 | |
482e2ac1 | 856 | if (n->family == AF_INET6) { |
d96edb2c | 857 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
2850cd40 | 858 | "Broadcast is not valid for IPv6 addresses, ignoring assignment: %s", rvalue); |
482e2ac1 TG |
859 | return 0; |
860 | } | |
861 | ||
44e7b949 | 862 | r = in_addr_from_string(AF_INET, rvalue, (union in_addr_union*) &n->broadcast); |
eb0ea358 | 863 | if (r < 0) { |
d96edb2c | 864 | log_syntax(unit, LOG_WARNING, filename, line, r, |
2850cd40 | 865 | "Broadcast is invalid, ignoring assignment: %s", rvalue); |
eb0ea358 TG |
866 | return 0; |
867 | } | |
868 | ||
44e7b949 | 869 | n->family = AF_INET; |
eb0ea358 TG |
870 | n = NULL; |
871 | ||
872 | return 0; | |
873 | } | |
874 | ||
f579559b TG |
875 | int config_parse_address(const char *unit, |
876 | const char *filename, | |
877 | unsigned line, | |
878 | const char *section, | |
71a61510 | 879 | unsigned section_line, |
f579559b TG |
880 | const char *lvalue, |
881 | int ltype, | |
882 | const char *rvalue, | |
883 | void *data, | |
884 | void *userdata) { | |
44e7b949 | 885 | |
6ae115c1 | 886 | Network *network = userdata; |
fcbf4cb7 | 887 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
44e7b949 | 888 | union in_addr_union buffer; |
b7cb4452 | 889 | unsigned char prefixlen; |
44e7b949 | 890 | int r, f; |
f579559b TG |
891 | |
892 | assert(filename); | |
6ae115c1 | 893 | assert(section); |
f579559b TG |
894 | assert(lvalue); |
895 | assert(rvalue); | |
896 | assert(data); | |
897 | ||
92fe133a TG |
898 | if (streq(section, "Network")) { |
899 | /* we are not in an Address section, so treat | |
900 | * this as the special '0' section */ | |
f4859fc7 SS |
901 | r = address_new_static(network, NULL, 0, &n); |
902 | } else | |
903 | r = address_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
904 | if (r == -ENOMEM) |
905 | return log_oom(); | |
906 | if (r < 0) { | |
907 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
908 | "Failed to allocate new address, ignoring assignment: %m"); | |
909 | return 0; | |
910 | } | |
f579559b TG |
911 | |
912 | /* Address=address/prefixlen */ | |
0f707207 YW |
913 | r = in_addr_prefix_from_string_auto_internal(rvalue, PREFIXLEN_REFUSE, &f, &buffer, &prefixlen); |
914 | if (r == -ENOANO) { | |
d96edb2c | 915 | log_syntax(unit, LOG_WARNING, filename, line, r, |
0f707207 YW |
916 | "An address '%s' is specified without prefix length. " |
917 | "The behavior of parsing addresses without prefix length will be changed in the future release. " | |
918 | "Please specify prefix length explicitly.", rvalue); | |
919 | ||
920 | r = in_addr_prefix_from_string_auto_internal(rvalue, PREFIXLEN_LEGACY, &f, &buffer, &prefixlen); | |
921 | } | |
f579559b | 922 | if (r < 0) { |
d96edb2c | 923 | log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid address '%s', ignoring assignment: %m", rvalue); |
f579559b TG |
924 | return 0; |
925 | } | |
926 | ||
44e7b949 | 927 | if (n->family != AF_UNSPEC && f != n->family) { |
d96edb2c | 928 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Address is incompatible, ignoring assignment: %s", rvalue); |
44e7b949 LP |
929 | return 0; |
930 | } | |
931 | ||
c9207ff3 YW |
932 | if (in_addr_is_null(f, &buffer)) { |
933 | /* Will use address from address pool. Note that for ipv6 case, prefix of the address | |
934 | * pool is 8, but 40 bit is used by the global ID and 16 bit by the subnet ID. So, | |
935 | * let's limit the prefix length to 64 or larger. See RFC4193. */ | |
936 | if ((f == AF_INET && prefixlen < 8) || | |
937 | (f == AF_INET6 && prefixlen < 64)) { | |
d96edb2c | 938 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
c9207ff3 YW |
939 | "Null address with invalid prefixlen='%u', ignoring assignment: %s", |
940 | prefixlen, rvalue); | |
941 | return 0; | |
942 | } | |
943 | } | |
944 | ||
44e7b949 | 945 | n->family = f; |
b7cb4452 | 946 | n->prefixlen = prefixlen; |
44e7b949 LP |
947 | |
948 | if (streq(lvalue, "Address")) | |
949 | n->in_addr = buffer; | |
950 | else | |
951 | n->in_addr_peer = buffer; | |
952 | ||
3681d639 | 953 | if (n->family == AF_INET && n->broadcast.s_addr == 0 && n->prefixlen <= 30) |
fe2e4b69 | 954 | n->broadcast.s_addr = n->in_addr.in.s_addr | htobe32(0xfffffffflu >> n->prefixlen); |
eb0ea358 | 955 | |
f579559b TG |
956 | n = NULL; |
957 | ||
958 | return 0; | |
959 | } | |
6ae115c1 | 960 | |
d31645ad LP |
961 | int config_parse_label( |
962 | const char *unit, | |
6ae115c1 TG |
963 | const char *filename, |
964 | unsigned line, | |
965 | const char *section, | |
966 | unsigned section_line, | |
967 | const char *lvalue, | |
968 | int ltype, | |
969 | const char *rvalue, | |
970 | void *data, | |
971 | void *userdata) { | |
d31645ad | 972 | |
fcbf4cb7 | 973 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
d31645ad | 974 | Network *network = userdata; |
6ae115c1 TG |
975 | int r; |
976 | ||
977 | assert(filename); | |
978 | assert(section); | |
979 | assert(lvalue); | |
980 | assert(rvalue); | |
981 | assert(data); | |
982 | ||
f4859fc7 | 983 | r = address_new_static(network, filename, section_line, &n); |
d96edb2c YW |
984 | if (r == -ENOMEM) |
985 | return log_oom(); | |
986 | if (r < 0) { | |
987 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
988 | "Failed to allocate new address, ignoring assignment: %m"); | |
989 | return 0; | |
990 | } | |
6ae115c1 | 991 | |
a87d19fe | 992 | if (!address_label_valid(rvalue)) { |
d96edb2c | 993 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
2850cd40 | 994 | "Interface label is too long or invalid, ignoring assignment: %s", rvalue); |
6ae115c1 TG |
995 | return 0; |
996 | } | |
997 | ||
d31645ad LP |
998 | r = free_and_strdup(&n->label, rvalue); |
999 | if (r < 0) | |
1000 | return log_oom(); | |
6ae115c1 TG |
1001 | |
1002 | n = NULL; | |
6ae115c1 TG |
1003 | return 0; |
1004 | } | |
ce6c77eb | 1005 | |
b5834a0b SS |
1006 | int config_parse_lifetime(const char *unit, |
1007 | const char *filename, | |
1008 | unsigned line, | |
1009 | const char *section, | |
1010 | unsigned section_line, | |
1011 | const char *lvalue, | |
1012 | int ltype, | |
1013 | const char *rvalue, | |
1014 | void *data, | |
1015 | void *userdata) { | |
1016 | Network *network = userdata; | |
fcbf4cb7 | 1017 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
d2735796 | 1018 | uint32_t k; |
b5834a0b SS |
1019 | int r; |
1020 | ||
1021 | assert(filename); | |
1022 | assert(section); | |
1023 | assert(lvalue); | |
1024 | assert(rvalue); | |
1025 | assert(data); | |
1026 | ||
f4859fc7 | 1027 | r = address_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1028 | if (r == -ENOMEM) |
1029 | return log_oom(); | |
1030 | if (r < 0) { | |
1031 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1032 | "Failed to allocate new address, ignoring assignment: %m"); | |
1033 | return 0; | |
1034 | } | |
b5834a0b | 1035 | |
10b20e5a ZJS |
1036 | /* We accept only "forever", "infinity", empty, or "0". */ |
1037 | if (STR_IN_SET(rvalue, "forever", "infinity", "")) | |
33680b0a YW |
1038 | k = CACHE_INFO_INFINITY_LIFE_TIME; |
1039 | else if (streq(rvalue, "0")) | |
1040 | k = 0; | |
1041 | else { | |
d96edb2c | 1042 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
33680b0a | 1043 | "Invalid PreferredLifetime= value, ignoring: %s", rvalue); |
b5834a0b SS |
1044 | return 0; |
1045 | } | |
1046 | ||
33680b0a | 1047 | n->cinfo.ifa_prefered = k; |
d2735796 | 1048 | TAKE_PTR(n); |
b5834a0b SS |
1049 | |
1050 | return 0; | |
1051 | } | |
1052 | ||
e63be084 SS |
1053 | int config_parse_address_flags(const char *unit, |
1054 | const char *filename, | |
1055 | unsigned line, | |
1056 | const char *section, | |
1057 | unsigned section_line, | |
1058 | const char *lvalue, | |
1059 | int ltype, | |
1060 | const char *rvalue, | |
1061 | void *data, | |
1062 | void *userdata) { | |
1063 | Network *network = userdata; | |
fcbf4cb7 | 1064 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
e63be084 SS |
1065 | int r; |
1066 | ||
1067 | assert(filename); | |
1068 | assert(section); | |
1069 | assert(lvalue); | |
1070 | assert(rvalue); | |
1071 | assert(data); | |
1072 | ||
f4859fc7 | 1073 | r = address_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1074 | if (r == -ENOMEM) |
1075 | return log_oom(); | |
1076 | if (r < 0) { | |
1077 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1078 | "Failed to allocate new address, ignoring assignment: %m"); | |
1079 | return 0; | |
1080 | } | |
e63be084 SS |
1081 | |
1082 | r = parse_boolean(rvalue); | |
1083 | if (r < 0) { | |
d96edb2c | 1084 | log_syntax(unit, LOG_WARNING, filename, line, r, |
051e77ca | 1085 | "Failed to parse %s=, ignoring: %s", lvalue, rvalue); |
e63be084 SS |
1086 | return 0; |
1087 | } | |
1088 | ||
1089 | if (streq(lvalue, "HomeAddress")) | |
1090 | n->home_address = r; | |
e63be084 SS |
1091 | else if (streq(lvalue, "ManageTemporaryAddress")) |
1092 | n->manage_temporary_address = r; | |
1093 | else if (streq(lvalue, "PrefixRoute")) | |
de697db0 YW |
1094 | n->prefix_route = !r; |
1095 | else if (streq(lvalue, "AddPrefixRoute")) | |
e63be084 SS |
1096 | n->prefix_route = r; |
1097 | else if (streq(lvalue, "AutoJoin")) | |
1098 | n->autojoin = r; | |
2850cd40 YW |
1099 | else |
1100 | assert_not_reached("Invalid address flag type."); | |
e63be084 | 1101 | |
4aa4c4b0 | 1102 | n = NULL; |
e63be084 SS |
1103 | return 0; |
1104 | } | |
1105 | ||
2959fb07 SS |
1106 | int config_parse_address_scope(const char *unit, |
1107 | const char *filename, | |
1108 | unsigned line, | |
1109 | const char *section, | |
1110 | unsigned section_line, | |
1111 | const char *lvalue, | |
1112 | int ltype, | |
1113 | const char *rvalue, | |
1114 | void *data, | |
1115 | void *userdata) { | |
1116 | Network *network = userdata; | |
fcbf4cb7 | 1117 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
2959fb07 SS |
1118 | int r; |
1119 | ||
1120 | assert(filename); | |
1121 | assert(section); | |
1122 | assert(lvalue); | |
1123 | assert(rvalue); | |
1124 | assert(data); | |
1125 | ||
1126 | r = address_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
1127 | if (r == -ENOMEM) |
1128 | return log_oom(); | |
1129 | if (r < 0) { | |
1130 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1131 | "Failed to allocate new address, ignoring assignment: %m"); | |
1132 | return 0; | |
1133 | } | |
2959fb07 SS |
1134 | |
1135 | if (streq(rvalue, "host")) | |
1136 | n->scope = RT_SCOPE_HOST; | |
1137 | else if (streq(rvalue, "link")) | |
1138 | n->scope = RT_SCOPE_LINK; | |
1139 | else if (streq(rvalue, "global")) | |
1140 | n->scope = RT_SCOPE_UNIVERSE; | |
1141 | else { | |
1142 | r = safe_atou8(rvalue , &n->scope); | |
1143 | if (r < 0) { | |
d96edb2c | 1144 | log_syntax(unit, LOG_WARNING, filename, line, r, |
2850cd40 | 1145 | "Could not parse address scope \"%s\", ignoring assignment: %m", rvalue); |
2959fb07 SS |
1146 | return 0; |
1147 | } | |
1148 | } | |
1149 | ||
07336a06 | 1150 | n->scope_set = true; |
2959fb07 | 1151 | n = NULL; |
2959fb07 SS |
1152 | return 0; |
1153 | } | |
1154 | ||
051e77ca SS |
1155 | int config_parse_duplicate_address_detection( |
1156 | const char *unit, | |
1157 | const char *filename, | |
1158 | unsigned line, | |
1159 | const char *section, | |
1160 | unsigned section_line, | |
1161 | const char *lvalue, | |
1162 | int ltype, | |
1163 | const char *rvalue, | |
1164 | void *data, | |
1165 | void *userdata) { | |
1166 | Network *network = userdata; | |
1167 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; | |
1168 | AddressFamily a; | |
1169 | int r; | |
1170 | ||
1171 | assert(filename); | |
1172 | assert(section); | |
1173 | assert(lvalue); | |
1174 | assert(rvalue); | |
1175 | assert(data); | |
1176 | ||
1177 | r = address_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
1178 | if (r == -ENOMEM) |
1179 | return log_oom(); | |
1180 | if (r < 0) { | |
1181 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1182 | "Failed to allocate new address, ignoring assignment: %m"); | |
1183 | return 0; | |
1184 | } | |
051e77ca SS |
1185 | |
1186 | r = parse_boolean(rvalue); | |
1187 | if (r >= 0) { | |
1188 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1189 | "For historical reasons, %s=%s means %s=%s. " | |
1190 | "Please use 'both', 'ipv4', 'ipv6' or 'none' instead.", | |
1191 | lvalue, rvalue, lvalue, r ? "none" : "both"); | |
1192 | n->duplicate_address_detection = r ? ADDRESS_FAMILY_NO : ADDRESS_FAMILY_YES; | |
1193 | n = NULL; | |
1194 | return 0; | |
1195 | } | |
1196 | ||
1197 | a = duplicate_address_detection_address_family_from_string(rvalue); | |
1198 | if (a < 0) { | |
d96edb2c | 1199 | log_syntax(unit, LOG_WARNING, filename, line, SYNTHETIC_ERRNO(EINVAL), |
051e77ca SS |
1200 | "Failed to parse %s=, ignoring: %s", lvalue, rvalue); |
1201 | return 0; | |
1202 | } | |
1203 | ||
1204 | n->duplicate_address_detection = a; | |
1205 | n = NULL; | |
1206 | return 0; | |
1207 | } | |
1208 | ||
ce6c77eb TG |
1209 | bool address_is_ready(const Address *a) { |
1210 | assert(a); | |
1211 | ||
ce158189 | 1212 | return !(a->flags & IFA_F_TENTATIVE); |
ce6c77eb | 1213 | } |
fcbf4cb7 YW |
1214 | |
1215 | int address_section_verify(Address *address) { | |
1216 | if (section_is_invalid(address->section)) | |
1217 | return -EINVAL; | |
1218 | ||
1219 | if (address->family == AF_UNSPEC) { | |
1220 | assert(address->section); | |
1221 | ||
1222 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
1223 | "%s: Address section without Address= field configured. " | |
1224 | "Ignoring [Address] section from line %u.", | |
1225 | address->section->filename, address->section->line); | |
1226 | } | |
1227 | ||
07336a06 YW |
1228 | if (!address->scope_set && in_addr_is_localhost(address->family, &address->in_addr) > 0) |
1229 | address->scope = RT_SCOPE_HOST; | |
1230 | ||
fcbf4cb7 YW |
1231 | return 0; |
1232 | } |