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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 | ||
f0213e37 | 23 | int address_new(Address **ret) { |
8e766630 | 24 | _cleanup_(address_freep) Address *address = NULL; |
f0213e37 | 25 | |
17f9c355 | 26 | address = new(Address, 1); |
f0213e37 TG |
27 | if (!address) |
28 | return -ENOMEM; | |
aba496a5 | 29 | |
17f9c355 YW |
30 | *address = (Address) { |
31 | .family = AF_UNSPEC, | |
32 | .scope = RT_SCOPE_UNIVERSE, | |
33 | .cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME, | |
34 | .cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME, | |
051e77ca | 35 | .duplicate_address_detection = ADDRESS_FAMILY_IPV6, |
de697db0 | 36 | .prefix_route = true, |
17f9c355 | 37 | }; |
f0213e37 | 38 | |
1cc6c93a | 39 | *ret = TAKE_PTR(address); |
f0213e37 TG |
40 | |
41 | return 0; | |
aba496a5 UTL |
42 | } |
43 | ||
9560e5b3 | 44 | static int address_new_static(Network *network, const char *filename, unsigned section_line, Address **ret) { |
8e766630 LP |
45 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
46 | _cleanup_(address_freep) Address *address = NULL; | |
f0213e37 | 47 | int r; |
f579559b | 48 | |
8c34b963 LP |
49 | assert(network); |
50 | assert(ret); | |
48317c39 | 51 | assert(!!filename == (section_line > 0)); |
8c34b963 | 52 | |
48317c39 | 53 | if (filename) { |
f4859fc7 SS |
54 | r = network_config_section_new(filename, section_line, &n); |
55 | if (r < 0) | |
56 | return r; | |
57 | ||
58 | address = hashmap_get(network->addresses_by_section, n); | |
6ae115c1 | 59 | if (address) { |
1cc6c93a | 60 | *ret = TAKE_PTR(address); |
6ae115c1 TG |
61 | |
62 | return 0; | |
63 | } | |
64 | } | |
65 | ||
8c34b963 LP |
66 | if (network->n_static_addresses >= STATIC_ADDRESSES_PER_NETWORK_MAX) |
67 | return -E2BIG; | |
68 | ||
f0213e37 TG |
69 | r = address_new(&address); |
70 | if (r < 0) | |
71 | return r; | |
801bd9e8 | 72 | |
0f7f2769 YW |
73 | address->network = network; |
74 | LIST_APPEND(addresses, network->static_addresses, address); | |
75 | network->n_static_addresses++; | |
76 | ||
48317c39 | 77 | if (filename) { |
1cc6c93a | 78 | address->section = TAKE_PTR(n); |
fcc48287 | 79 | |
3e570042 YW |
80 | r = hashmap_ensure_allocated(&network->addresses_by_section, &network_config_hash_ops); |
81 | if (r < 0) | |
82 | return r; | |
83 | ||
f7fe70ea SS |
84 | r = hashmap_put(network->addresses_by_section, address->section, address); |
85 | if (r < 0) | |
86 | return r; | |
6ae115c1 TG |
87 | } |
88 | ||
1cc6c93a | 89 | *ret = TAKE_PTR(address); |
f579559b TG |
90 | |
91 | return 0; | |
92 | } | |
93 | ||
94 | void address_free(Address *address) { | |
95 | if (!address) | |
96 | return; | |
97 | ||
f048a16b | 98 | if (address->network) { |
3d3d4255 | 99 | LIST_REMOVE(addresses, address->network->static_addresses, address); |
8c34b963 LP |
100 | assert(address->network->n_static_addresses > 0); |
101 | address->network->n_static_addresses--; | |
f579559b | 102 | |
de4224aa | 103 | if (address->section) |
f4859fc7 | 104 | hashmap_remove(address->network->addresses_by_section, address->section); |
f048a16b | 105 | } |
6ae115c1 | 106 | |
051e77ca | 107 | if (address->link && !address->acd) { |
cf1d700d | 108 | set_remove(address->link->addresses, address); |
adda1ed9 | 109 | set_remove(address->link->addresses_foreign, address); |
f150100a SS |
110 | |
111 | if (in_addr_equal(AF_INET6, &address->in_addr, (const union in_addr_union *) &address->link->ipv6ll_address)) | |
112 | memzero(&address->link->ipv6ll_address, sizeof(struct in6_addr)); | |
adda1ed9 | 113 | } |
cf1d700d | 114 | |
051e77ca SS |
115 | sd_ipv4acd_unref(address->acd); |
116 | ||
de4224aa YW |
117 | network_config_section_free(address->section); |
118 | free(address->label); | |
f579559b TG |
119 | free(address); |
120 | } | |
121 | ||
24be9181 ZJS |
122 | static uint32_t address_prefix(const Address *a) { |
123 | assert(a); | |
124 | ||
125 | /* make sure we don't try to shift by 32. | |
126 | * See ISO/IEC 9899:TC3 § 6.5.7.3. */ | |
127 | if (a->prefixlen == 0) | |
128 | return 0; | |
129 | ||
130 | if (a->in_addr_peer.in.s_addr != 0) | |
131 | return be32toh(a->in_addr_peer.in.s_addr) >> (32 - a->prefixlen); | |
132 | else | |
133 | return be32toh(a->in_addr.in.s_addr) >> (32 - a->prefixlen); | |
134 | } | |
135 | ||
7a08d314 | 136 | static void address_hash_func(const Address *a, struct siphash *state) { |
3ac8e543 TG |
137 | assert(a); |
138 | ||
139 | siphash24_compress(&a->family, sizeof(a->family), state); | |
140 | ||
141 | switch (a->family) { | |
142 | case AF_INET: | |
143 | siphash24_compress(&a->prefixlen, sizeof(a->prefixlen), state); | |
144 | ||
145 | /* peer prefix */ | |
24be9181 ZJS |
146 | uint32_t prefix = address_prefix(a); |
147 | siphash24_compress(&prefix, sizeof(prefix), state); | |
3ac8e543 | 148 | |
4831981d | 149 | _fallthrough_; |
3ac8e543 TG |
150 | case AF_INET6: |
151 | /* local address */ | |
152 | siphash24_compress(&a->in_addr, FAMILY_ADDRESS_SIZE(a->family), state); | |
153 | ||
154 | break; | |
155 | default: | |
156 | /* treat any other address family as AF_UNSPEC */ | |
157 | break; | |
158 | } | |
159 | } | |
160 | ||
7a08d314 | 161 | static int address_compare_func(const Address *a1, const Address *a2) { |
a0edd02e | 162 | int r; |
3ac8e543 | 163 | |
a0edd02e FB |
164 | r = CMP(a1->family, a2->family); |
165 | if (r != 0) | |
166 | return r; | |
3ac8e543 TG |
167 | |
168 | switch (a1->family) { | |
169 | /* use the same notion of equality as the kernel does */ | |
170 | case AF_INET: | |
a0edd02e FB |
171 | r = CMP(a1->prefixlen, a2->prefixlen); |
172 | if (r != 0) | |
173 | return r; | |
3ac8e543 | 174 | |
24be9181 ZJS |
175 | uint32_t prefix1 = address_prefix(a1); |
176 | uint32_t prefix2 = address_prefix(a2); | |
177 | r = CMP(prefix1, prefix2); | |
178 | if (r != 0) | |
179 | return r; | |
3ac8e543 | 180 | |
4831981d | 181 | _fallthrough_; |
3ac8e543 TG |
182 | case AF_INET6: |
183 | return memcmp(&a1->in_addr, &a2->in_addr, FAMILY_ADDRESS_SIZE(a1->family)); | |
184 | default: | |
185 | /* treat any other address family as AF_UNSPEC */ | |
186 | return 0; | |
187 | } | |
188 | } | |
189 | ||
8a98f11e | 190 | DEFINE_HASH_OPS(address_hash_ops, Address, address_hash_func, address_compare_func); |
3ac8e543 TG |
191 | |
192 | bool address_equal(Address *a1, Address *a2) { | |
193 | if (a1 == a2) | |
194 | return true; | |
195 | ||
196 | if (!a1 || !a2) | |
197 | return false; | |
198 | ||
199 | return address_compare_func(a1, a2) == 0; | |
200 | } | |
201 | ||
91b5f997 TG |
202 | static int address_establish(Address *address, Link *link) { |
203 | bool masq; | |
204 | int r; | |
205 | ||
206 | assert(address); | |
207 | assert(link); | |
208 | ||
209 | masq = link->network && | |
fcf50cff TG |
210 | link->network->ip_masquerade && |
211 | address->family == AF_INET && | |
212 | address->scope < RT_SCOPE_LINK; | |
91b5f997 TG |
213 | |
214 | /* Add firewall entry if this is requested */ | |
215 | if (address->ip_masquerade_done != masq) { | |
216 | union in_addr_union masked = address->in_addr; | |
217 | in_addr_mask(address->family, &masked, address->prefixlen); | |
218 | ||
219 | r = fw_add_masquerade(masq, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); | |
220 | if (r < 0) | |
7750b796 | 221 | return r; |
91b5f997 TG |
222 | |
223 | address->ip_masquerade_done = masq; | |
224 | } | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
adda1ed9 TG |
229 | static int address_add_internal(Link *link, Set **addresses, |
230 | int family, | |
231 | const union in_addr_union *in_addr, | |
232 | unsigned char prefixlen, | |
233 | Address **ret) { | |
8e766630 | 234 | _cleanup_(address_freep) Address *address = NULL; |
cf1d700d TG |
235 | int r; |
236 | ||
237 | assert(link); | |
adda1ed9 | 238 | assert(addresses); |
054f0db4 | 239 | assert(in_addr); |
054f0db4 TG |
240 | |
241 | r = address_new(&address); | |
242 | if (r < 0) | |
243 | return r; | |
244 | ||
245 | address->family = family; | |
246 | address->in_addr = *in_addr; | |
247 | address->prefixlen = prefixlen; | |
63bbe5c7 TG |
248 | /* Consider address tentative until we get the real flags from the kernel */ |
249 | address->flags = IFA_F_TENTATIVE; | |
cf1d700d | 250 | |
adda1ed9 | 251 | r = set_ensure_allocated(addresses, &address_hash_ops); |
cf1d700d TG |
252 | if (r < 0) |
253 | return r; | |
254 | ||
adda1ed9 | 255 | r = set_put(*addresses, address); |
cf1d700d TG |
256 | if (r < 0) |
257 | return r; | |
75a302b5 YW |
258 | if (r == 0) |
259 | return -EEXIST; | |
cf1d700d TG |
260 | |
261 | address->link = link; | |
262 | ||
adda1ed9 TG |
263 | if (ret) |
264 | *ret = address; | |
265 | ||
054f0db4 TG |
266 | address = NULL; |
267 | ||
cf1d700d TG |
268 | return 0; |
269 | } | |
270 | ||
adda1ed9 TG |
271 | int address_add_foreign(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
272 | return address_add_internal(link, &link->addresses_foreign, family, in_addr, prefixlen, ret); | |
273 | } | |
274 | ||
c4a03a56 | 275 | int address_add(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
cab974b0 | 276 | Address *address; |
e7780c8d TG |
277 | int r; |
278 | ||
cab974b0 TG |
279 | r = address_get(link, family, in_addr, prefixlen, &address); |
280 | if (r == -ENOENT) { | |
281 | /* Address does not exist, create a new one */ | |
282 | r = address_add_internal(link, &link->addresses, family, in_addr, prefixlen, &address); | |
283 | if (r < 0) | |
284 | return r; | |
285 | } else if (r == 0) { | |
286 | /* Take over a foreign address */ | |
287 | r = set_ensure_allocated(&link->addresses, &address_hash_ops); | |
288 | if (r < 0) | |
289 | return r; | |
290 | ||
291 | r = set_put(link->addresses, address); | |
292 | if (r < 0) | |
293 | return r; | |
294 | ||
295 | set_remove(link->addresses_foreign, address); | |
296 | } else if (r == 1) { | |
297 | /* Already exists, do nothing */ | |
298 | ; | |
299 | } else | |
e7780c8d TG |
300 | return r; |
301 | ||
cab974b0 TG |
302 | if (ret) |
303 | *ret = address; | |
e7780c8d TG |
304 | |
305 | return 0; | |
adda1ed9 TG |
306 | } |
307 | ||
fcf50cff | 308 | static int address_release(Address *address) { |
5a8bcb67 LP |
309 | int r; |
310 | ||
311 | assert(address); | |
fcf50cff | 312 | assert(address->link); |
5a8bcb67 | 313 | |
91b5f997 TG |
314 | /* Remove masquerading firewall entry if it was added */ |
315 | if (address->ip_masquerade_done) { | |
5a8bcb67 LP |
316 | union in_addr_union masked = address->in_addr; |
317 | in_addr_mask(address->family, &masked, address->prefixlen); | |
318 | ||
91b5f997 | 319 | r = fw_add_masquerade(false, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); |
5a8bcb67 | 320 | if (r < 0) |
7750b796 | 321 | return r; |
5a8bcb67 | 322 | |
91b5f997 | 323 | address->ip_masquerade_done = false; |
5a8bcb67 LP |
324 | } |
325 | ||
326 | return 0; | |
327 | } | |
328 | ||
889b550f LP |
329 | int address_update( |
330 | Address *address, | |
331 | unsigned char flags, | |
332 | unsigned char scope, | |
333 | const struct ifa_cacheinfo *cinfo) { | |
334 | ||
36c32f61 | 335 | bool ready; |
e7ab854c | 336 | int r; |
36c32f61 TG |
337 | |
338 | assert(address); | |
339 | assert(cinfo); | |
7209086d SS |
340 | assert_return(address->link, 1); |
341 | ||
342 | if (IN_SET(address->link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
343 | return 1; | |
36c32f61 TG |
344 | |
345 | ready = address_is_ready(address); | |
346 | ||
347 | address->flags = flags; | |
348 | address->scope = scope; | |
349 | address->cinfo = *cinfo; | |
350 | ||
959f65d3 | 351 | link_update_operstate(address->link, true); |
c8f7123e | 352 | link_check_ready(address->link); |
7209086d | 353 | |
c8f7123e YW |
354 | if (!ready && |
355 | address_is_ready(address) && | |
356 | address->family == AF_INET6 && | |
357 | in_addr_is_link_local(AF_INET6, &address->in_addr) > 0 && | |
358 | in_addr_is_null(AF_INET6, (const union in_addr_union*) &address->link->ipv6ll_address) > 0) { | |
7209086d | 359 | |
c8f7123e YW |
360 | r = link_ipv6ll_gained(address->link, &address->in_addr.in6); |
361 | if (r < 0) | |
362 | return r; | |
a3a019e1 | 363 | } |
36c32f61 TG |
364 | |
365 | return 0; | |
366 | } | |
367 | ||
91b5f997 | 368 | int address_drop(Address *address) { |
8012cd39 TG |
369 | Link *link; |
370 | bool ready; | |
7750b796 | 371 | int r; |
8012cd39 | 372 | |
5a8bcb67 | 373 | assert(address); |
91b5f997 | 374 | |
8012cd39 TG |
375 | ready = address_is_ready(address); |
376 | link = address->link; | |
377 | ||
7750b796 YW |
378 | r = address_release(address); |
379 | if (r < 0) | |
380 | log_link_warning_errno(link, r, "Failed to disable IP masquerading, ignoring: %m"); | |
381 | ||
91b5f997 TG |
382 | address_free(address); |
383 | ||
959f65d3 | 384 | link_update_operstate(link, true); |
84de38c5 | 385 | |
8012cd39 TG |
386 | if (link && !ready) |
387 | link_check_ready(link); | |
388 | ||
91b5f997 TG |
389 | return 0; |
390 | } | |
391 | ||
1b566071 LP |
392 | int address_get(Link *link, |
393 | int family, | |
394 | const union in_addr_union *in_addr, | |
395 | unsigned char prefixlen, | |
396 | Address **ret) { | |
397 | ||
398 | Address address, *existing; | |
91b5f997 | 399 | |
5a8bcb67 | 400 | assert(link); |
91b5f997 | 401 | assert(in_addr); |
5a8bcb67 | 402 | |
1b566071 LP |
403 | address = (Address) { |
404 | .family = family, | |
405 | .in_addr = *in_addr, | |
406 | .prefixlen = prefixlen, | |
407 | }; | |
5a8bcb67 | 408 | |
91b5f997 | 409 | existing = set_get(link->addresses, &address); |
cab974b0 | 410 | if (existing) { |
1b566071 LP |
411 | if (ret) |
412 | *ret = existing; | |
cab974b0 | 413 | return 1; |
adda1ed9 | 414 | } |
5a8bcb67 | 415 | |
1b566071 LP |
416 | existing = set_get(link->addresses_foreign, &address); |
417 | if (existing) { | |
418 | if (ret) | |
419 | *ret = existing; | |
420 | return 0; | |
421 | } | |
5a8bcb67 | 422 | |
1b566071 | 423 | return -ENOENT; |
5a8bcb67 LP |
424 | } |
425 | ||
302a796f | 426 | static int address_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { |
63ae0569 YW |
427 | int r; |
428 | ||
429 | assert(m); | |
430 | assert(link); | |
431 | assert(link->ifname); | |
432 | ||
433 | if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
434 | return 1; | |
435 | ||
436 | r = sd_netlink_message_get_errno(m); | |
437 | if (r < 0 && r != -EADDRNOTAVAIL) | |
5ecb131d | 438 | log_link_message_warning_errno(link, m, r, "Could not drop address"); |
63ae0569 YW |
439 | |
440 | return 1; | |
441 | } | |
442 | ||
483d099e ZJS |
443 | int address_remove( |
444 | Address *address, | |
445 | Link *link, | |
302a796f | 446 | link_netlink_message_handler_t callback) { |
483d099e | 447 | |
4afd3348 | 448 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
407fe036 TG |
449 | int r; |
450 | ||
451 | assert(address); | |
4c701096 | 452 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
407fe036 TG |
453 | assert(link); |
454 | assert(link->ifindex > 0); | |
455 | assert(link->manager); | |
456 | assert(link->manager->rtnl); | |
457 | ||
30226d27 | 458 | if (DEBUG_LOGGING) { |
7750b796 YW |
459 | _cleanup_free_ char *b = NULL; |
460 | ||
461 | (void) in_addr_to_string(address->family, &address->in_addr, &b); | |
462 | log_link_debug(link, "Removing address %s", strna(b)); | |
30226d27 TJ |
463 | } |
464 | ||
151b9b96 LP |
465 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDR, |
466 | link->ifindex, address->family); | |
eb56eb9b | 467 | if (r < 0) |
7750b796 | 468 | return log_link_error_errno(link, r, "Could not allocate RTM_DELADDR message: %m"); |
407fe036 | 469 | |
5a723174 | 470 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b | 471 | if (r < 0) |
7750b796 | 472 | return log_link_error_errno(link, r, "Could not set prefixlen: %m"); |
5a723174 | 473 | |
43409486 | 474 | r = netlink_message_append_in_addr_union(req, IFA_LOCAL, address->family, &address->in_addr); |
eb56eb9b | 475 | if (r < 0) |
7750b796 | 476 | return log_link_error_errno(link, r, "Could not append IFA_LOCAL attribute: %m"); |
407fe036 | 477 | |
302a796f YW |
478 | r = netlink_call_async(link->manager->rtnl, NULL, req, |
479 | callback ?: address_remove_handler, | |
480 | link_netlink_destroy_callback, link); | |
eb56eb9b | 481 | if (r < 0) |
7750b796 | 482 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
407fe036 | 483 | |
563c69c6 TG |
484 | link_ref(link); |
485 | ||
407fe036 TG |
486 | return 0; |
487 | } | |
488 | ||
11bf3cce | 489 | static int address_acquire(Link *link, Address *original, Address **ret) { |
67a46833 | 490 | union in_addr_union in_addr = IN_ADDR_NULL; |
11bf3cce | 491 | struct in_addr broadcast = {}; |
8e766630 | 492 | _cleanup_(address_freep) Address *na = NULL; |
11bf3cce LP |
493 | int r; |
494 | ||
495 | assert(link); | |
496 | assert(original); | |
497 | assert(ret); | |
498 | ||
499 | /* Something useful was configured? just use it */ | |
7e43ebfb YW |
500 | r = in_addr_is_null(original->family, &original->in_addr); |
501 | if (r <= 0) | |
502 | return r; | |
11bf3cce LP |
503 | |
504 | /* The address is configured to be 0.0.0.0 or [::] by the user? | |
505 | * Then let's acquire something more useful from the pool. */ | |
506 | r = manager_address_pool_acquire(link->manager, original->family, original->prefixlen, &in_addr); | |
6a7a4e4d | 507 | if (r < 0) |
7750b796 YW |
508 | return r; |
509 | if (r == 0) | |
11bf3cce | 510 | return -EBUSY; |
11bf3cce LP |
511 | |
512 | if (original->family == AF_INET) { | |
d076c6f9 | 513 | /* Pick first address in range for ourselves ... */ |
11bf3cce LP |
514 | in_addr.in.s_addr = in_addr.in.s_addr | htobe32(1); |
515 | ||
516 | /* .. and use last as broadcast address */ | |
e87e2b78 SS |
517 | if (original->prefixlen > 30) |
518 | broadcast.s_addr = 0; | |
519 | else | |
520 | broadcast.s_addr = in_addr.in.s_addr | htobe32(0xFFFFFFFFUL >> original->prefixlen); | |
11bf3cce LP |
521 | } else if (original->family == AF_INET6) |
522 | in_addr.in6.s6_addr[15] |= 1; | |
523 | ||
f0213e37 | 524 | r = address_new(&na); |
11bf3cce LP |
525 | if (r < 0) |
526 | return r; | |
527 | ||
528 | na->family = original->family; | |
529 | na->prefixlen = original->prefixlen; | |
530 | na->scope = original->scope; | |
531 | na->cinfo = original->cinfo; | |
532 | ||
533 | if (original->label) { | |
534 | na->label = strdup(original->label); | |
0099bc15 | 535 | if (!na->label) |
11bf3cce | 536 | return -ENOMEM; |
11bf3cce LP |
537 | } |
538 | ||
539 | na->broadcast = broadcast; | |
540 | na->in_addr = in_addr; | |
541 | ||
542 | LIST_PREPEND(addresses, link->pool_addresses, na); | |
543 | ||
1cc6c93a | 544 | *ret = TAKE_PTR(na); |
0099bc15 | 545 | |
11bf3cce LP |
546 | return 0; |
547 | } | |
548 | ||
1b566071 LP |
549 | int address_configure( |
550 | Address *address, | |
551 | Link *link, | |
302a796f | 552 | link_netlink_message_handler_t callback, |
1b566071 LP |
553 | bool update) { |
554 | ||
4afd3348 | 555 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
f579559b TG |
556 | int r; |
557 | ||
c166a070 | 558 | assert(address); |
4c701096 | 559 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
c166a070 TG |
560 | assert(link); |
561 | assert(link->ifindex > 0); | |
f882c247 | 562 | assert(link->manager); |
c166a070 | 563 | assert(link->manager->rtnl); |
bd1175bc | 564 | assert(callback); |
f882c247 | 565 | |
1b566071 LP |
566 | /* If this is a new address, then refuse adding more than the limit */ |
567 | if (address_get(link, address->family, &address->in_addr, address->prefixlen, NULL) <= 0 && | |
568 | set_size(link->addresses) >= ADDRESSES_PER_LINK_MAX) | |
7750b796 YW |
569 | return log_link_error_errno(link, SYNTHETIC_ERRNO(E2BIG), |
570 | "Too many addresses are configured, refusing: %m"); | |
1b566071 | 571 | |
11bf3cce LP |
572 | r = address_acquire(link, address, &address); |
573 | if (r < 0) | |
7750b796 | 574 | return log_link_error_errno(link, r, "Failed to acquire an address from pool: %m"); |
11bf3cce | 575 | |
66669078 TG |
576 | if (update) |
577 | r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req, | |
578 | link->ifindex, address->family); | |
579 | else | |
580 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_NEWADDR, | |
581 | link->ifindex, address->family); | |
eb56eb9b | 582 | if (r < 0) |
7750b796 | 583 | return log_link_error_errno(link, r, "Could not allocate RTM_NEWADDR message: %m"); |
f579559b | 584 | |
5a723174 | 585 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b | 586 | if (r < 0) |
7750b796 | 587 | return log_link_error_errno(link, r, "Could not set prefixlen: %m"); |
5a723174 | 588 | |
851c9f82 PF |
589 | address->flags |= IFA_F_PERMANENT; |
590 | ||
e63be084 SS |
591 | if (address->home_address) |
592 | address->flags |= IFA_F_HOMEADDRESS; | |
593 | ||
051e77ca | 594 | if (!FLAGS_SET(address->duplicate_address_detection, ADDRESS_FAMILY_IPV6)) |
e63be084 SS |
595 | address->flags |= IFA_F_NODAD; |
596 | ||
597 | if (address->manage_temporary_address) | |
598 | address->flags |= IFA_F_MANAGETEMPADDR; | |
599 | ||
de697db0 | 600 | if (!address->prefix_route) |
e63be084 SS |
601 | address->flags |= IFA_F_NOPREFIXROUTE; |
602 | ||
603 | if (address->autojoin) | |
604 | address->flags |= IFA_F_MCAUTOJOIN; | |
605 | ||
851c9f82 | 606 | r = sd_rtnl_message_addr_set_flags(req, (address->flags & 0xff)); |
eb56eb9b | 607 | if (r < 0) |
7750b796 | 608 | return log_link_error_errno(link, r, "Could not set flags: %m"); |
5a723174 | 609 | |
851c9f82 | 610 | if (address->flags & ~0xff) { |
1c4baffc | 611 | r = sd_netlink_message_append_u32(req, IFA_FLAGS, address->flags); |
851c9f82 | 612 | if (r < 0) |
7750b796 | 613 | return log_link_error_errno(link, r, "Could not set extended flags: %m"); |
851c9f82 PF |
614 | } |
615 | ||
5c1d3fc9 | 616 | r = sd_rtnl_message_addr_set_scope(req, address->scope); |
eb56eb9b | 617 | if (r < 0) |
7750b796 | 618 | return log_link_error_errno(link, r, "Could not set scope: %m"); |
5a723174 | 619 | |
43409486 | 620 | r = netlink_message_append_in_addr_union(req, IFA_LOCAL, address->family, &address->in_addr); |
eb56eb9b | 621 | if (r < 0) |
7750b796 | 622 | return log_link_error_errno(link, r, "Could not append IFA_LOCAL attribute: %m"); |
f579559b | 623 | |
d40b01e4 | 624 | if (in_addr_is_null(address->family, &address->in_addr_peer) == 0) { |
43409486 | 625 | r = netlink_message_append_in_addr_union(req, IFA_ADDRESS, address->family, &address->in_addr_peer); |
eb56eb9b | 626 | if (r < 0) |
7750b796 | 627 | return log_link_error_errno(link, r, "Could not append IFA_ADDRESS attribute: %m"); |
66e0bb33 YW |
628 | } else if (address->family == AF_INET && address->prefixlen <= 30) { |
629 | r = sd_netlink_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast); | |
630 | if (r < 0) | |
7750b796 | 631 | return log_link_error_errno(link, r, "Could not append IFA_BROADCAST attribute: %m"); |
f579559b TG |
632 | } |
633 | ||
634 | if (address->label) { | |
1c4baffc | 635 | r = sd_netlink_message_append_string(req, IFA_LABEL, address->label); |
eb56eb9b | 636 | if (r < 0) |
7750b796 | 637 | return log_link_error_errno(link, r, "Could not append IFA_LABEL attribute: %m"); |
f579559b TG |
638 | } |
639 | ||
66e0bb33 | 640 | r = sd_netlink_message_append_cache_info(req, IFA_CACHEINFO, &address->cinfo); |
eb56eb9b | 641 | if (r < 0) |
7750b796 | 642 | return log_link_error_errno(link, r, "Could not append IFA_CACHEINFO attribute: %m"); |
68ceb9df | 643 | |
fcf50cff | 644 | r = address_establish(address, link); |
eb56eb9b | 645 | if (r < 0) |
7750b796 | 646 | log_link_warning_errno(link, r, "Could not enable IP masquerading, ignoring: %m"); |
fcf50cff | 647 | |
dfef713f | 648 | r = netlink_call_async(link->manager->rtnl, NULL, req, callback, link_netlink_destroy_callback, link); |
fcf50cff TG |
649 | if (r < 0) { |
650 | address_release(address); | |
7750b796 | 651 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
fcf50cff | 652 | } |
f579559b | 653 | |
563c69c6 TG |
654 | link_ref(link); |
655 | ||
dfef713f SS |
656 | if (address->family == AF_INET6 && !in_addr_is_null(address->family, &address->in_addr_peer)) |
657 | r = address_add(link, address->family, &address->in_addr_peer, address->prefixlen, NULL); | |
658 | else | |
659 | r = address_add(link, address->family, &address->in_addr, address->prefixlen, NULL); | |
adda1ed9 TG |
660 | if (r < 0) { |
661 | address_release(address); | |
7750b796 | 662 | return log_link_error_errno(link, r, "Could not add address: %m"); |
adda1ed9 TG |
663 | } |
664 | ||
051e77ca SS |
665 | if (address->acd) { |
666 | assert(address->family == AF_INET); | |
667 | if (DEBUG_LOGGING) { | |
668 | _cleanup_free_ char *pretty = NULL; | |
669 | ||
670 | (void) in_addr_to_string(address->family, &address->in_addr, &pretty); | |
98b02994 | 671 | log_link_debug(link, "Starting IPv4ACD client. Probing address %s", strna(pretty)); |
051e77ca SS |
672 | } |
673 | ||
e92b60b2 | 674 | r = sd_ipv4acd_start(address->acd, true); |
051e77ca SS |
675 | if (r < 0) |
676 | log_link_warning_errno(link, r, "Failed to start IPv4ACD client, ignoring: %m"); | |
677 | } | |
678 | ||
54a1a535 | 679 | return 1; |
f579559b TG |
680 | } |
681 | ||
051e77ca SS |
682 | static void static_address_on_acd(sd_ipv4acd *acd, int event, void *userdata) { |
683 | _cleanup_free_ char *pretty = NULL; | |
684 | Address *address; | |
685 | Link *link; | |
686 | int r; | |
687 | ||
688 | assert(acd); | |
689 | assert(userdata); | |
690 | ||
691 | address = (Address *) userdata; | |
692 | link = address->link; | |
693 | ||
694 | (void) in_addr_to_string(address->family, &address->in_addr, &pretty); | |
695 | switch (event) { | |
696 | case SD_IPV4ACD_EVENT_STOP: | |
697 | log_link_debug(link, "Stopping ACD client..."); | |
698 | return; | |
699 | ||
700 | case SD_IPV4ACD_EVENT_BIND: | |
701 | log_link_debug(link, "Successfully claimed address %s", strna(pretty)); | |
702 | link_check_ready(link); | |
703 | break; | |
704 | ||
705 | case SD_IPV4ACD_EVENT_CONFLICT: | |
706 | log_link_warning(link, "DAD conflict. Dropping address %s", strna(pretty)); | |
707 | r = address_remove(address, link, NULL); | |
708 | if (r < 0) | |
709 | log_link_error_errno(link, r, "Failed to drop DAD conflicted address %s", strna(pretty));; | |
710 | ||
711 | link_check_ready(link); | |
712 | break; | |
713 | ||
714 | default: | |
715 | assert_not_reached("Invalid IPv4ACD event."); | |
716 | } | |
717 | ||
718 | sd_ipv4acd_stop(acd); | |
719 | ||
720 | return; | |
721 | } | |
722 | ||
723 | int configure_ipv4_duplicate_address_detection(Link *link, Address *address) { | |
724 | int r; | |
725 | ||
726 | assert(link); | |
727 | assert(address); | |
728 | assert(address->family == AF_INET); | |
729 | assert(!address->link && address->network); | |
730 | ||
731 | address->link = link; | |
732 | ||
733 | r = sd_ipv4acd_new(&address->acd); | |
734 | if (r < 0) | |
735 | return r; | |
736 | ||
737 | r = sd_ipv4acd_attach_event(address->acd, NULL, 0); | |
738 | if (r < 0) | |
739 | return r; | |
740 | ||
741 | r = sd_ipv4acd_set_ifindex(address->acd, link->ifindex); | |
742 | if (r < 0) | |
743 | return r; | |
744 | ||
745 | r = sd_ipv4acd_set_mac(address->acd, &link->mac); | |
746 | if (r < 0) | |
747 | return r; | |
748 | ||
749 | r = sd_ipv4acd_set_address(address->acd, &address->in_addr.in); | |
750 | if (r < 0) | |
751 | return r; | |
752 | ||
753 | r = sd_ipv4acd_set_callback(address->acd, static_address_on_acd, address); | |
754 | if (r < 0) | |
755 | return r; | |
756 | ||
757 | return 0; | |
758 | } | |
759 | ||
44e7b949 LP |
760 | int config_parse_broadcast( |
761 | const char *unit, | |
eb0ea358 TG |
762 | const char *filename, |
763 | unsigned line, | |
764 | const char *section, | |
765 | unsigned section_line, | |
766 | const char *lvalue, | |
767 | int ltype, | |
768 | const char *rvalue, | |
769 | void *data, | |
770 | void *userdata) { | |
44e7b949 | 771 | |
eb0ea358 | 772 | Network *network = userdata; |
fcbf4cb7 | 773 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
eb0ea358 TG |
774 | int r; |
775 | ||
776 | assert(filename); | |
777 | assert(section); | |
778 | assert(lvalue); | |
779 | assert(rvalue); | |
780 | assert(data); | |
781 | ||
f4859fc7 | 782 | r = address_new_static(network, filename, section_line, &n); |
eb0ea358 TG |
783 | if (r < 0) |
784 | return r; | |
785 | ||
482e2ac1 | 786 | if (n->family == AF_INET6) { |
2850cd40 YW |
787 | log_syntax(unit, LOG_ERR, filename, line, 0, |
788 | "Broadcast is not valid for IPv6 addresses, ignoring assignment: %s", rvalue); | |
482e2ac1 TG |
789 | return 0; |
790 | } | |
791 | ||
44e7b949 | 792 | r = in_addr_from_string(AF_INET, rvalue, (union in_addr_union*) &n->broadcast); |
eb0ea358 | 793 | if (r < 0) { |
2850cd40 YW |
794 | log_syntax(unit, LOG_ERR, filename, line, r, |
795 | "Broadcast is invalid, ignoring assignment: %s", rvalue); | |
eb0ea358 TG |
796 | return 0; |
797 | } | |
798 | ||
44e7b949 | 799 | n->family = AF_INET; |
eb0ea358 TG |
800 | n = NULL; |
801 | ||
802 | return 0; | |
803 | } | |
804 | ||
f579559b TG |
805 | int config_parse_address(const char *unit, |
806 | const char *filename, | |
807 | unsigned line, | |
808 | const char *section, | |
71a61510 | 809 | unsigned section_line, |
f579559b TG |
810 | const char *lvalue, |
811 | int ltype, | |
812 | const char *rvalue, | |
813 | void *data, | |
814 | void *userdata) { | |
44e7b949 | 815 | |
6ae115c1 | 816 | Network *network = userdata; |
fcbf4cb7 | 817 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
44e7b949 | 818 | union in_addr_union buffer; |
b7cb4452 | 819 | unsigned char prefixlen; |
44e7b949 | 820 | int r, f; |
f579559b TG |
821 | |
822 | assert(filename); | |
6ae115c1 | 823 | assert(section); |
f579559b TG |
824 | assert(lvalue); |
825 | assert(rvalue); | |
826 | assert(data); | |
827 | ||
92fe133a TG |
828 | if (streq(section, "Network")) { |
829 | /* we are not in an Address section, so treat | |
830 | * this as the special '0' section */ | |
f4859fc7 SS |
831 | r = address_new_static(network, NULL, 0, &n); |
832 | } else | |
833 | r = address_new_static(network, filename, section_line, &n); | |
92fe133a | 834 | |
f579559b TG |
835 | if (r < 0) |
836 | return r; | |
837 | ||
838 | /* Address=address/prefixlen */ | |
0f707207 YW |
839 | r = in_addr_prefix_from_string_auto_internal(rvalue, PREFIXLEN_REFUSE, &f, &buffer, &prefixlen); |
840 | if (r == -ENOANO) { | |
841 | log_syntax(unit, LOG_ERR, filename, line, r, | |
842 | "An address '%s' is specified without prefix length. " | |
843 | "The behavior of parsing addresses without prefix length will be changed in the future release. " | |
844 | "Please specify prefix length explicitly.", rvalue); | |
845 | ||
846 | r = in_addr_prefix_from_string_auto_internal(rvalue, PREFIXLEN_LEGACY, &f, &buffer, &prefixlen); | |
847 | } | |
f579559b | 848 | if (r < 0) { |
b7cb4452 | 849 | log_syntax(unit, LOG_ERR, filename, line, r, "Invalid address '%s', ignoring assignment: %m", rvalue); |
f579559b TG |
850 | return 0; |
851 | } | |
852 | ||
44e7b949 | 853 | if (n->family != AF_UNSPEC && f != n->family) { |
b7cb4452 | 854 | log_syntax(unit, LOG_ERR, filename, line, 0, "Address is incompatible, ignoring assignment: %s", rvalue); |
44e7b949 LP |
855 | return 0; |
856 | } | |
857 | ||
c9207ff3 YW |
858 | if (in_addr_is_null(f, &buffer)) { |
859 | /* Will use address from address pool. Note that for ipv6 case, prefix of the address | |
860 | * pool is 8, but 40 bit is used by the global ID and 16 bit by the subnet ID. So, | |
861 | * let's limit the prefix length to 64 or larger. See RFC4193. */ | |
862 | if ((f == AF_INET && prefixlen < 8) || | |
863 | (f == AF_INET6 && prefixlen < 64)) { | |
864 | log_syntax(unit, LOG_ERR, filename, line, 0, | |
865 | "Null address with invalid prefixlen='%u', ignoring assignment: %s", | |
866 | prefixlen, rvalue); | |
867 | return 0; | |
868 | } | |
869 | } | |
870 | ||
44e7b949 | 871 | n->family = f; |
b7cb4452 | 872 | n->prefixlen = prefixlen; |
44e7b949 LP |
873 | |
874 | if (streq(lvalue, "Address")) | |
875 | n->in_addr = buffer; | |
876 | else | |
877 | n->in_addr_peer = buffer; | |
878 | ||
3681d639 | 879 | if (n->family == AF_INET && n->broadcast.s_addr == 0 && n->prefixlen <= 30) |
fe2e4b69 | 880 | n->broadcast.s_addr = n->in_addr.in.s_addr | htobe32(0xfffffffflu >> n->prefixlen); |
eb0ea358 | 881 | |
f579559b TG |
882 | n = NULL; |
883 | ||
884 | return 0; | |
885 | } | |
6ae115c1 | 886 | |
d31645ad LP |
887 | int config_parse_label( |
888 | const char *unit, | |
6ae115c1 TG |
889 | const char *filename, |
890 | unsigned line, | |
891 | const char *section, | |
892 | unsigned section_line, | |
893 | const char *lvalue, | |
894 | int ltype, | |
895 | const char *rvalue, | |
896 | void *data, | |
897 | void *userdata) { | |
d31645ad | 898 | |
fcbf4cb7 | 899 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
d31645ad | 900 | Network *network = userdata; |
6ae115c1 TG |
901 | int r; |
902 | ||
903 | assert(filename); | |
904 | assert(section); | |
905 | assert(lvalue); | |
906 | assert(rvalue); | |
907 | assert(data); | |
908 | ||
f4859fc7 | 909 | r = address_new_static(network, filename, section_line, &n); |
6ae115c1 TG |
910 | if (r < 0) |
911 | return r; | |
912 | ||
a87d19fe | 913 | if (!address_label_valid(rvalue)) { |
2850cd40 YW |
914 | log_syntax(unit, LOG_ERR, filename, line, 0, |
915 | "Interface label is too long or invalid, ignoring assignment: %s", rvalue); | |
6ae115c1 TG |
916 | return 0; |
917 | } | |
918 | ||
d31645ad LP |
919 | r = free_and_strdup(&n->label, rvalue); |
920 | if (r < 0) | |
921 | return log_oom(); | |
6ae115c1 TG |
922 | |
923 | n = NULL; | |
6ae115c1 TG |
924 | return 0; |
925 | } | |
ce6c77eb | 926 | |
b5834a0b SS |
927 | int config_parse_lifetime(const char *unit, |
928 | const char *filename, | |
929 | unsigned line, | |
930 | const char *section, | |
931 | unsigned section_line, | |
932 | const char *lvalue, | |
933 | int ltype, | |
934 | const char *rvalue, | |
935 | void *data, | |
936 | void *userdata) { | |
937 | Network *network = userdata; | |
fcbf4cb7 | 938 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
b5834a0b SS |
939 | unsigned k; |
940 | int r; | |
941 | ||
942 | assert(filename); | |
943 | assert(section); | |
944 | assert(lvalue); | |
945 | assert(rvalue); | |
946 | assert(data); | |
947 | ||
f4859fc7 | 948 | r = address_new_static(network, filename, section_line, &n); |
b5834a0b SS |
949 | if (r < 0) |
950 | return r; | |
951 | ||
33680b0a YW |
952 | /* We accept only "forever", "infinity", or "0". */ |
953 | if (STR_IN_SET(rvalue, "forever", "infinity")) | |
954 | k = CACHE_INFO_INFINITY_LIFE_TIME; | |
955 | else if (streq(rvalue, "0")) | |
956 | k = 0; | |
957 | else { | |
958 | log_syntax(unit, LOG_ERR, filename, line, 0, | |
959 | "Invalid PreferredLifetime= value, ignoring: %s", rvalue); | |
b5834a0b SS |
960 | return 0; |
961 | } | |
962 | ||
33680b0a YW |
963 | n->cinfo.ifa_prefered = k; |
964 | n = NULL; | |
b5834a0b SS |
965 | |
966 | return 0; | |
967 | } | |
968 | ||
e63be084 SS |
969 | int config_parse_address_flags(const char *unit, |
970 | const char *filename, | |
971 | unsigned line, | |
972 | const char *section, | |
973 | unsigned section_line, | |
974 | const char *lvalue, | |
975 | int ltype, | |
976 | const char *rvalue, | |
977 | void *data, | |
978 | void *userdata) { | |
979 | Network *network = userdata; | |
fcbf4cb7 | 980 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
e63be084 SS |
981 | int r; |
982 | ||
983 | assert(filename); | |
984 | assert(section); | |
985 | assert(lvalue); | |
986 | assert(rvalue); | |
987 | assert(data); | |
988 | ||
f4859fc7 | 989 | r = address_new_static(network, filename, section_line, &n); |
e63be084 SS |
990 | if (r < 0) |
991 | return r; | |
992 | ||
993 | r = parse_boolean(rvalue); | |
994 | if (r < 0) { | |
2850cd40 | 995 | log_syntax(unit, LOG_ERR, filename, line, r, |
051e77ca | 996 | "Failed to parse %s=, ignoring: %s", lvalue, rvalue); |
e63be084 SS |
997 | return 0; |
998 | } | |
999 | ||
1000 | if (streq(lvalue, "HomeAddress")) | |
1001 | n->home_address = r; | |
e63be084 SS |
1002 | else if (streq(lvalue, "ManageTemporaryAddress")) |
1003 | n->manage_temporary_address = r; | |
1004 | else if (streq(lvalue, "PrefixRoute")) | |
de697db0 YW |
1005 | n->prefix_route = !r; |
1006 | else if (streq(lvalue, "AddPrefixRoute")) | |
e63be084 SS |
1007 | n->prefix_route = r; |
1008 | else if (streq(lvalue, "AutoJoin")) | |
1009 | n->autojoin = r; | |
2850cd40 YW |
1010 | else |
1011 | assert_not_reached("Invalid address flag type."); | |
e63be084 | 1012 | |
4aa4c4b0 | 1013 | n = NULL; |
e63be084 SS |
1014 | return 0; |
1015 | } | |
1016 | ||
2959fb07 SS |
1017 | int config_parse_address_scope(const char *unit, |
1018 | const char *filename, | |
1019 | unsigned line, | |
1020 | const char *section, | |
1021 | unsigned section_line, | |
1022 | const char *lvalue, | |
1023 | int ltype, | |
1024 | const char *rvalue, | |
1025 | void *data, | |
1026 | void *userdata) { | |
1027 | Network *network = userdata; | |
fcbf4cb7 | 1028 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
2959fb07 SS |
1029 | int r; |
1030 | ||
1031 | assert(filename); | |
1032 | assert(section); | |
1033 | assert(lvalue); | |
1034 | assert(rvalue); | |
1035 | assert(data); | |
1036 | ||
1037 | r = address_new_static(network, filename, section_line, &n); | |
1038 | if (r < 0) | |
1039 | return r; | |
1040 | ||
1041 | if (streq(rvalue, "host")) | |
1042 | n->scope = RT_SCOPE_HOST; | |
1043 | else if (streq(rvalue, "link")) | |
1044 | n->scope = RT_SCOPE_LINK; | |
1045 | else if (streq(rvalue, "global")) | |
1046 | n->scope = RT_SCOPE_UNIVERSE; | |
1047 | else { | |
1048 | r = safe_atou8(rvalue , &n->scope); | |
1049 | if (r < 0) { | |
2850cd40 YW |
1050 | log_syntax(unit, LOG_ERR, filename, line, r, |
1051 | "Could not parse address scope \"%s\", ignoring assignment: %m", rvalue); | |
2959fb07 SS |
1052 | return 0; |
1053 | } | |
1054 | } | |
1055 | ||
1056 | n = NULL; | |
2959fb07 SS |
1057 | return 0; |
1058 | } | |
1059 | ||
051e77ca SS |
1060 | int config_parse_duplicate_address_detection( |
1061 | const char *unit, | |
1062 | const char *filename, | |
1063 | unsigned line, | |
1064 | const char *section, | |
1065 | unsigned section_line, | |
1066 | const char *lvalue, | |
1067 | int ltype, | |
1068 | const char *rvalue, | |
1069 | void *data, | |
1070 | void *userdata) { | |
1071 | Network *network = userdata; | |
1072 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; | |
1073 | AddressFamily a; | |
1074 | int r; | |
1075 | ||
1076 | assert(filename); | |
1077 | assert(section); | |
1078 | assert(lvalue); | |
1079 | assert(rvalue); | |
1080 | assert(data); | |
1081 | ||
1082 | r = address_new_static(network, filename, section_line, &n); | |
1083 | if (r < 0) | |
1084 | return r; | |
1085 | ||
1086 | r = parse_boolean(rvalue); | |
1087 | if (r >= 0) { | |
1088 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1089 | "For historical reasons, %s=%s means %s=%s. " | |
1090 | "Please use 'both', 'ipv4', 'ipv6' or 'none' instead.", | |
1091 | lvalue, rvalue, lvalue, r ? "none" : "both"); | |
1092 | n->duplicate_address_detection = r ? ADDRESS_FAMILY_NO : ADDRESS_FAMILY_YES; | |
1093 | n = NULL; | |
1094 | return 0; | |
1095 | } | |
1096 | ||
1097 | a = duplicate_address_detection_address_family_from_string(rvalue); | |
1098 | if (a < 0) { | |
1099 | log_syntax(unit, LOG_ERR, filename, line, SYNTHETIC_ERRNO(EINVAL), | |
1100 | "Failed to parse %s=, ignoring: %s", lvalue, rvalue); | |
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | n->duplicate_address_detection = a; | |
1105 | n = NULL; | |
1106 | return 0; | |
1107 | } | |
1108 | ||
ce6c77eb TG |
1109 | bool address_is_ready(const Address *a) { |
1110 | assert(a); | |
1111 | ||
ce158189 | 1112 | return !(a->flags & IFA_F_TENTATIVE); |
ce6c77eb | 1113 | } |
fcbf4cb7 YW |
1114 | |
1115 | int address_section_verify(Address *address) { | |
1116 | if (section_is_invalid(address->section)) | |
1117 | return -EINVAL; | |
1118 | ||
1119 | if (address->family == AF_UNSPEC) { | |
1120 | assert(address->section); | |
1121 | ||
1122 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
1123 | "%s: Address section without Address= field configured. " | |
1124 | "Ignoring [Address] section from line %u.", | |
1125 | address->section->filename, address->section->line); | |
1126 | } | |
1127 | ||
1128 | return 0; | |
1129 | } |