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f579559b TG |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <net/if.h> | |
23 | ||
b5efdb8a | 24 | #include "alloc-util.h" |
f579559b | 25 | #include "conf-parser.h" |
12c2884c | 26 | #include "firewall-util.h" |
fc2f9534 | 27 | #include "netlink-util.h" |
6bedfcbb | 28 | #include "networkd-address.h" |
07630cea | 29 | #include "networkd.h" |
6bedfcbb | 30 | #include "parse-util.h" |
3ac8e543 | 31 | #include "set.h" |
07630cea | 32 | #include "string-util.h" |
3ac8e543 TG |
33 | #include "utf8.h" |
34 | #include "util.h" | |
f579559b | 35 | |
f0213e37 TG |
36 | int address_new(Address **ret) { |
37 | _cleanup_address_free_ Address *address = NULL; | |
38 | ||
39 | address = new0(Address, 1); | |
40 | if (!address) | |
41 | return -ENOMEM; | |
aba496a5 UTL |
42 | |
43 | address->family = AF_UNSPEC; | |
44 | address->scope = RT_SCOPE_UNIVERSE; | |
45 | address->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME; | |
46 | address->cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME; | |
f0213e37 TG |
47 | |
48 | *ret = address; | |
49 | address = NULL; | |
50 | ||
51 | return 0; | |
aba496a5 UTL |
52 | } |
53 | ||
f048a16b | 54 | int address_new_static(Network *network, unsigned section, Address **ret) { |
f579559b | 55 | _cleanup_address_free_ Address *address = NULL; |
f0213e37 | 56 | int r; |
f579559b | 57 | |
6ae115c1 | 58 | if (section) { |
16aa63a0 | 59 | address = hashmap_get(network->addresses_by_section, UINT_TO_PTR(section)); |
6ae115c1 TG |
60 | if (address) { |
61 | *ret = address; | |
62 | address = NULL; | |
63 | ||
64 | return 0; | |
65 | } | |
66 | } | |
67 | ||
f0213e37 TG |
68 | r = address_new(&address); |
69 | if (r < 0) | |
70 | return r; | |
801bd9e8 | 71 | |
f579559b TG |
72 | address->network = network; |
73 | ||
1e39ff92 | 74 | LIST_APPEND(addresses, network->static_addresses, address); |
f579559b | 75 | |
6ae115c1 TG |
76 | if (section) { |
77 | address->section = section; | |
16aa63a0 TG |
78 | hashmap_put(network->addresses_by_section, |
79 | UINT_TO_PTR(address->section), address); | |
6ae115c1 TG |
80 | } |
81 | ||
f579559b TG |
82 | *ret = address; |
83 | address = NULL; | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
88 | void address_free(Address *address) { | |
89 | if (!address) | |
90 | return; | |
91 | ||
f048a16b | 92 | if (address->network) { |
3d3d4255 | 93 | LIST_REMOVE(addresses, address->network->static_addresses, address); |
f579559b | 94 | |
f048a16b TG |
95 | if (address->section) |
96 | hashmap_remove(address->network->addresses_by_section, | |
16aa63a0 | 97 | UINT_TO_PTR(address->section)); |
f048a16b | 98 | } |
6ae115c1 | 99 | |
adda1ed9 | 100 | if (address->link) { |
cf1d700d | 101 | set_remove(address->link->addresses, address); |
adda1ed9 TG |
102 | set_remove(address->link->addresses_foreign, address); |
103 | } | |
cf1d700d | 104 | |
f579559b TG |
105 | free(address); |
106 | } | |
107 | ||
3ac8e543 TG |
108 | static void address_hash_func(const void *b, struct siphash *state) { |
109 | const Address *a = b; | |
110 | ||
111 | assert(a); | |
112 | ||
113 | siphash24_compress(&a->family, sizeof(a->family), state); | |
114 | ||
115 | switch (a->family) { | |
116 | case AF_INET: | |
117 | siphash24_compress(&a->prefixlen, sizeof(a->prefixlen), state); | |
118 | ||
119 | /* peer prefix */ | |
120 | if (a->prefixlen != 0) { | |
121 | uint32_t prefix; | |
122 | ||
123 | if (a->in_addr_peer.in.s_addr != 0) | |
124 | prefix = be32toh(a->in_addr_peer.in.s_addr) >> (32 - a->prefixlen); | |
125 | else | |
126 | prefix = be32toh(a->in_addr.in.s_addr) >> (32 - a->prefixlen); | |
127 | ||
128 | siphash24_compress(&prefix, sizeof(prefix), state); | |
129 | } | |
130 | ||
131 | /* fallthrough */ | |
132 | case AF_INET6: | |
133 | /* local address */ | |
134 | siphash24_compress(&a->in_addr, FAMILY_ADDRESS_SIZE(a->family), state); | |
135 | ||
136 | break; | |
137 | default: | |
138 | /* treat any other address family as AF_UNSPEC */ | |
139 | break; | |
140 | } | |
141 | } | |
142 | ||
143 | static int address_compare_func(const void *c1, const void *c2) { | |
144 | const Address *a1 = c1, *a2 = c2; | |
145 | ||
146 | if (a1->family < a2->family) | |
147 | return -1; | |
148 | if (a1->family > a2->family) | |
149 | return 1; | |
150 | ||
151 | switch (a1->family) { | |
152 | /* use the same notion of equality as the kernel does */ | |
153 | case AF_INET: | |
154 | if (a1->prefixlen < a2->prefixlen) | |
155 | return -1; | |
156 | if (a1->prefixlen > a2->prefixlen) | |
157 | return 1; | |
158 | ||
159 | /* compare the peer prefixes */ | |
160 | if (a1->prefixlen != 0) { | |
161 | /* make sure we don't try to shift by 32. | |
162 | * See ISO/IEC 9899:TC3 § 6.5.7.3. */ | |
163 | uint32_t b1, b2; | |
164 | ||
165 | if (a1->in_addr_peer.in.s_addr != 0) | |
166 | b1 = be32toh(a1->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen); | |
167 | else | |
168 | b1 = be32toh(a1->in_addr.in.s_addr) >> (32 - a1->prefixlen); | |
169 | ||
170 | if (a2->in_addr_peer.in.s_addr != 0) | |
171 | b2 = be32toh(a2->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen); | |
172 | else | |
173 | b2 = be32toh(a2->in_addr.in.s_addr) >> (32 - a1->prefixlen); | |
174 | ||
175 | if (b1 < b2) | |
176 | return -1; | |
177 | if (b1 > b2) | |
178 | return 1; | |
179 | } | |
180 | ||
181 | /* fall-through */ | |
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 | ||
190 | static const struct hash_ops address_hash_ops = { | |
191 | .hash = address_hash_func, | |
192 | .compare = address_compare_func | |
193 | }; | |
194 | ||
195 | bool address_equal(Address *a1, Address *a2) { | |
196 | if (a1 == a2) | |
197 | return true; | |
198 | ||
199 | if (!a1 || !a2) | |
200 | return false; | |
201 | ||
202 | return address_compare_func(a1, a2) == 0; | |
203 | } | |
204 | ||
91b5f997 TG |
205 | static int address_establish(Address *address, Link *link) { |
206 | bool masq; | |
207 | int r; | |
208 | ||
209 | assert(address); | |
210 | assert(link); | |
211 | ||
212 | masq = link->network && | |
fcf50cff TG |
213 | link->network->ip_masquerade && |
214 | address->family == AF_INET && | |
215 | address->scope < RT_SCOPE_LINK; | |
91b5f997 TG |
216 | |
217 | /* Add firewall entry if this is requested */ | |
218 | if (address->ip_masquerade_done != masq) { | |
219 | union in_addr_union masked = address->in_addr; | |
220 | in_addr_mask(address->family, &masked, address->prefixlen); | |
221 | ||
222 | r = fw_add_masquerade(masq, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); | |
223 | if (r < 0) | |
224 | log_link_warning_errno(link, r, "Could not enable IP masquerading: %m"); | |
225 | ||
226 | address->ip_masquerade_done = masq; | |
227 | } | |
228 | ||
229 | return 0; | |
230 | } | |
231 | ||
adda1ed9 TG |
232 | static int address_add_internal(Link *link, Set **addresses, |
233 | int family, | |
234 | const union in_addr_union *in_addr, | |
235 | unsigned char prefixlen, | |
236 | Address **ret) { | |
054f0db4 | 237 | _cleanup_address_free_ Address *address = NULL; |
cf1d700d TG |
238 | int r; |
239 | ||
240 | assert(link); | |
adda1ed9 | 241 | assert(addresses); |
054f0db4 | 242 | assert(in_addr); |
054f0db4 TG |
243 | |
244 | r = address_new(&address); | |
245 | if (r < 0) | |
246 | return r; | |
247 | ||
248 | address->family = family; | |
249 | address->in_addr = *in_addr; | |
250 | address->prefixlen = prefixlen; | |
63bbe5c7 TG |
251 | /* Consider address tentative until we get the real flags from the kernel */ |
252 | address->flags = IFA_F_TENTATIVE; | |
cf1d700d | 253 | |
adda1ed9 | 254 | r = set_ensure_allocated(addresses, &address_hash_ops); |
cf1d700d TG |
255 | if (r < 0) |
256 | return r; | |
257 | ||
adda1ed9 | 258 | r = set_put(*addresses, address); |
cf1d700d TG |
259 | if (r < 0) |
260 | return r; | |
261 | ||
262 | address->link = link; | |
263 | ||
adda1ed9 TG |
264 | if (ret) |
265 | *ret = address; | |
266 | ||
054f0db4 TG |
267 | address = NULL; |
268 | ||
cf1d700d TG |
269 | return 0; |
270 | } | |
271 | ||
adda1ed9 TG |
272 | int address_add_foreign(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
273 | return address_add_internal(link, &link->addresses_foreign, family, in_addr, prefixlen, ret); | |
274 | } | |
275 | ||
c4a03a56 | 276 | int address_add(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
cab974b0 | 277 | Address *address; |
e7780c8d TG |
278 | int r; |
279 | ||
cab974b0 TG |
280 | r = address_get(link, family, in_addr, prefixlen, &address); |
281 | if (r == -ENOENT) { | |
282 | /* Address does not exist, create a new one */ | |
283 | r = address_add_internal(link, &link->addresses, family, in_addr, prefixlen, &address); | |
284 | if (r < 0) | |
285 | return r; | |
286 | } else if (r == 0) { | |
287 | /* Take over a foreign address */ | |
288 | r = set_ensure_allocated(&link->addresses, &address_hash_ops); | |
289 | if (r < 0) | |
290 | return r; | |
291 | ||
292 | r = set_put(link->addresses, address); | |
293 | if (r < 0) | |
294 | return r; | |
295 | ||
296 | set_remove(link->addresses_foreign, address); | |
297 | } else if (r == 1) { | |
298 | /* Already exists, do nothing */ | |
299 | ; | |
300 | } else | |
e7780c8d TG |
301 | return r; |
302 | ||
cab974b0 TG |
303 | if (ret) |
304 | *ret = address; | |
e7780c8d TG |
305 | |
306 | return 0; | |
adda1ed9 TG |
307 | } |
308 | ||
fcf50cff | 309 | static int address_release(Address *address) { |
5a8bcb67 LP |
310 | int r; |
311 | ||
312 | assert(address); | |
fcf50cff | 313 | assert(address->link); |
5a8bcb67 | 314 | |
91b5f997 TG |
315 | /* Remove masquerading firewall entry if it was added */ |
316 | if (address->ip_masquerade_done) { | |
5a8bcb67 LP |
317 | union in_addr_union masked = address->in_addr; |
318 | in_addr_mask(address->family, &masked, address->prefixlen); | |
319 | ||
91b5f997 | 320 | r = fw_add_masquerade(false, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); |
5a8bcb67 | 321 | if (r < 0) |
fcf50cff | 322 | log_link_warning_errno(address->link, r, "Failed to disable IP masquerading: %m"); |
5a8bcb67 | 323 | |
91b5f997 | 324 | address->ip_masquerade_done = false; |
5a8bcb67 LP |
325 | } |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
36c32f61 TG |
330 | int address_update(Address *address, unsigned char flags, unsigned char scope, struct ifa_cacheinfo *cinfo) { |
331 | bool ready; | |
e7ab854c | 332 | int r; |
36c32f61 TG |
333 | |
334 | assert(address); | |
335 | assert(cinfo); | |
336 | ||
337 | ready = address_is_ready(address); | |
338 | ||
339 | address->flags = flags; | |
340 | address->scope = scope; | |
341 | address->cinfo = *cinfo; | |
342 | ||
a3a019e1 TG |
343 | if (address->link) { |
344 | link_update_operstate(address->link); | |
345 | ||
e7ab854c | 346 | if (!ready && address_is_ready(address)) { |
a3a019e1 | 347 | link_check_ready(address->link); |
e7ab854c TG |
348 | |
349 | if (address->family == AF_INET6 && | |
350 | in_addr_is_link_local(AF_INET6, &address->in_addr) && | |
351 | !address->link->ipv6ll_address) { | |
352 | r = link_ipv6ll_gained(address->link); | |
353 | if (r < 0) | |
354 | return r; | |
355 | } | |
356 | } | |
a3a019e1 | 357 | } |
36c32f61 TG |
358 | |
359 | return 0; | |
360 | } | |
361 | ||
91b5f997 | 362 | int address_drop(Address *address) { |
8012cd39 TG |
363 | Link *link; |
364 | bool ready; | |
365 | ||
5a8bcb67 | 366 | assert(address); |
91b5f997 | 367 | |
8012cd39 TG |
368 | ready = address_is_ready(address); |
369 | link = address->link; | |
370 | ||
fcf50cff | 371 | address_release(address); |
91b5f997 TG |
372 | address_free(address); |
373 | ||
84de38c5 TG |
374 | link_update_operstate(link); |
375 | ||
8012cd39 TG |
376 | if (link && !ready) |
377 | link_check_ready(link); | |
378 | ||
91b5f997 TG |
379 | return 0; |
380 | } | |
381 | ||
382 | int address_get(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { | |
383 | Address address = {}, *existing; | |
384 | ||
5a8bcb67 | 385 | assert(link); |
91b5f997 TG |
386 | assert(in_addr); |
387 | assert(ret); | |
5a8bcb67 | 388 | |
91b5f997 TG |
389 | address.family = family; |
390 | address.in_addr = *in_addr; | |
391 | address.prefixlen = prefixlen; | |
5a8bcb67 | 392 | |
91b5f997 | 393 | existing = set_get(link->addresses, &address); |
cab974b0 TG |
394 | if (existing) { |
395 | *ret = existing; | |
396 | ||
397 | return 1; | |
398 | } else { | |
adda1ed9 TG |
399 | existing = set_get(link->addresses_foreign, &address); |
400 | if (!existing) | |
401 | return -ENOENT; | |
402 | } | |
5a8bcb67 | 403 | |
91b5f997 | 404 | *ret = existing; |
5a8bcb67 LP |
405 | |
406 | return 0; | |
407 | } | |
408 | ||
91b5f997 | 409 | int address_remove(Address *address, Link *link, |
1c4baffc TG |
410 | sd_netlink_message_handler_t callback) { |
411 | _cleanup_netlink_message_unref_ sd_netlink_message *req = NULL; | |
407fe036 TG |
412 | int r; |
413 | ||
414 | assert(address); | |
415 | assert(address->family == AF_INET || address->family == AF_INET6); | |
416 | assert(link); | |
417 | assert(link->ifindex > 0); | |
418 | assert(link->manager); | |
419 | assert(link->manager->rtnl); | |
420 | ||
151b9b96 LP |
421 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDR, |
422 | link->ifindex, address->family); | |
eb56eb9b MS |
423 | if (r < 0) |
424 | return log_error_errno(r, "Could not allocate RTM_DELADDR message: %m"); | |
407fe036 | 425 | |
5a723174 | 426 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b MS |
427 | if (r < 0) |
428 | return log_error_errno(r, "Could not set prefixlen: %m"); | |
5a723174 | 429 | |
407fe036 | 430 | if (address->family == AF_INET) |
1c4baffc | 431 | r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in); |
407fe036 | 432 | else if (address->family == AF_INET6) |
1c4baffc | 433 | r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6); |
eb56eb9b MS |
434 | if (r < 0) |
435 | return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m"); | |
407fe036 | 436 | |
1c4baffc | 437 | r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); |
eb56eb9b MS |
438 | if (r < 0) |
439 | return log_error_errno(r, "Could not send rtnetlink message: %m"); | |
407fe036 | 440 | |
563c69c6 TG |
441 | link_ref(link); |
442 | ||
407fe036 TG |
443 | return 0; |
444 | } | |
445 | ||
11bf3cce LP |
446 | static int address_acquire(Link *link, Address *original, Address **ret) { |
447 | union in_addr_union in_addr = {}; | |
448 | struct in_addr broadcast = {}; | |
0099bc15 | 449 | _cleanup_address_free_ Address *na = NULL; |
11bf3cce LP |
450 | int r; |
451 | ||
452 | assert(link); | |
453 | assert(original); | |
454 | assert(ret); | |
455 | ||
456 | /* Something useful was configured? just use it */ | |
af93291c | 457 | if (in_addr_is_null(original->family, &original->in_addr) <= 0) |
11bf3cce LP |
458 | return 0; |
459 | ||
460 | /* The address is configured to be 0.0.0.0 or [::] by the user? | |
461 | * Then let's acquire something more useful from the pool. */ | |
462 | r = manager_address_pool_acquire(link->manager, original->family, original->prefixlen, &in_addr); | |
6a7a4e4d LP |
463 | if (r < 0) |
464 | return log_link_error_errno(link, r, "Failed to acquire address from pool: %m"); | |
11bf3cce | 465 | if (r == 0) { |
79008bdd | 466 | log_link_error(link, "Couldn't find free address for interface, all taken."); |
11bf3cce LP |
467 | return -EBUSY; |
468 | } | |
469 | ||
470 | if (original->family == AF_INET) { | |
d076c6f9 | 471 | /* Pick first address in range for ourselves ... */ |
11bf3cce LP |
472 | in_addr.in.s_addr = in_addr.in.s_addr | htobe32(1); |
473 | ||
474 | /* .. and use last as broadcast address */ | |
475 | broadcast.s_addr = in_addr.in.s_addr | htobe32(0xFFFFFFFFUL >> original->prefixlen); | |
476 | } else if (original->family == AF_INET6) | |
477 | in_addr.in6.s6_addr[15] |= 1; | |
478 | ||
f0213e37 | 479 | r = address_new(&na); |
11bf3cce LP |
480 | if (r < 0) |
481 | return r; | |
482 | ||
483 | na->family = original->family; | |
484 | na->prefixlen = original->prefixlen; | |
485 | na->scope = original->scope; | |
486 | na->cinfo = original->cinfo; | |
487 | ||
488 | if (original->label) { | |
489 | na->label = strdup(original->label); | |
0099bc15 | 490 | if (!na->label) |
11bf3cce | 491 | return -ENOMEM; |
11bf3cce LP |
492 | } |
493 | ||
494 | na->broadcast = broadcast; | |
495 | na->in_addr = in_addr; | |
496 | ||
497 | LIST_PREPEND(addresses, link->pool_addresses, na); | |
498 | ||
499 | *ret = na; | |
0099bc15 SS |
500 | na = NULL; |
501 | ||
11bf3cce LP |
502 | return 0; |
503 | } | |
504 | ||
66669078 | 505 | int address_configure(Address *address, Link *link, sd_netlink_message_handler_t callback, bool update) { |
1c4baffc | 506 | _cleanup_netlink_message_unref_ sd_netlink_message *req = NULL; |
f579559b TG |
507 | int r; |
508 | ||
c166a070 TG |
509 | assert(address); |
510 | assert(address->family == AF_INET || address->family == AF_INET6); | |
511 | assert(link); | |
512 | assert(link->ifindex > 0); | |
f882c247 | 513 | assert(link->manager); |
c166a070 | 514 | assert(link->manager->rtnl); |
f882c247 | 515 | |
11bf3cce LP |
516 | r = address_acquire(link, address, &address); |
517 | if (r < 0) | |
518 | return r; | |
519 | ||
66669078 TG |
520 | if (update) |
521 | r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req, | |
522 | link->ifindex, address->family); | |
523 | else | |
524 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_NEWADDR, | |
525 | link->ifindex, address->family); | |
eb56eb9b MS |
526 | if (r < 0) |
527 | return log_error_errno(r, "Could not allocate RTM_NEWADDR message: %m"); | |
f579559b | 528 | |
5a723174 | 529 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b MS |
530 | if (r < 0) |
531 | return log_error_errno(r, "Could not set prefixlen: %m"); | |
5a723174 | 532 | |
851c9f82 PF |
533 | address->flags |= IFA_F_PERMANENT; |
534 | ||
535 | r = sd_rtnl_message_addr_set_flags(req, (address->flags & 0xff)); | |
eb56eb9b MS |
536 | if (r < 0) |
537 | return log_error_errno(r, "Could not set flags: %m"); | |
5a723174 | 538 | |
851c9f82 | 539 | if (address->flags & ~0xff) { |
1c4baffc | 540 | r = sd_netlink_message_append_u32(req, IFA_FLAGS, address->flags); |
851c9f82 PF |
541 | if (r < 0) |
542 | return log_error_errno(r, "Could not set extended flags: %m"); | |
543 | } | |
544 | ||
5c1d3fc9 | 545 | r = sd_rtnl_message_addr_set_scope(req, address->scope); |
eb56eb9b MS |
546 | if (r < 0) |
547 | return log_error_errno(r, "Could not set scope: %m"); | |
5a723174 | 548 | |
0a0dc69b | 549 | if (address->family == AF_INET) |
1c4baffc | 550 | r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in); |
0a0dc69b | 551 | else if (address->family == AF_INET6) |
1c4baffc | 552 | r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6); |
eb56eb9b MS |
553 | if (r < 0) |
554 | return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m"); | |
f579559b | 555 | |
af93291c | 556 | if (!in_addr_is_null(address->family, &address->in_addr_peer)) { |
c081882f | 557 | if (address->family == AF_INET) |
1c4baffc | 558 | r = sd_netlink_message_append_in_addr(req, IFA_ADDRESS, &address->in_addr_peer.in); |
c081882f | 559 | else if (address->family == AF_INET6) |
1c4baffc | 560 | r = sd_netlink_message_append_in6_addr(req, IFA_ADDRESS, &address->in_addr_peer.in6); |
eb56eb9b MS |
561 | if (r < 0) |
562 | return log_error_errno(r, "Could not append IFA_ADDRESS attribute: %m"); | |
c081882f SS |
563 | } else { |
564 | if (address->family == AF_INET) { | |
1c4baffc | 565 | r = sd_netlink_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast); |
eb56eb9b MS |
566 | if (r < 0) |
567 | return log_error_errno(r, "Could not append IFA_BROADCAST attribute: %m"); | |
c081882f | 568 | } |
f579559b TG |
569 | } |
570 | ||
571 | if (address->label) { | |
1c4baffc | 572 | r = sd_netlink_message_append_string(req, IFA_LABEL, address->label); |
eb56eb9b MS |
573 | if (r < 0) |
574 | return log_error_errno(r, "Could not append IFA_LABEL attribute: %m"); | |
f579559b TG |
575 | } |
576 | ||
1c4baffc | 577 | r = sd_netlink_message_append_cache_info(req, IFA_CACHEINFO, |
68ceb9df | 578 | &address->cinfo); |
eb56eb9b MS |
579 | if (r < 0) |
580 | return log_error_errno(r, "Could not append IFA_CACHEINFO attribute: %m"); | |
68ceb9df | 581 | |
fcf50cff | 582 | r = address_establish(address, link); |
eb56eb9b | 583 | if (r < 0) |
fcf50cff TG |
584 | return r; |
585 | ||
586 | r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); | |
587 | if (r < 0) { | |
588 | address_release(address); | |
eb56eb9b | 589 | return log_error_errno(r, "Could not send rtnetlink message: %m"); |
fcf50cff | 590 | } |
f579559b | 591 | |
563c69c6 TG |
592 | link_ref(link); |
593 | ||
adda1ed9 TG |
594 | r = address_add(link, address->family, &address->in_addr, address->prefixlen, NULL); |
595 | if (r < 0) { | |
596 | address_release(address); | |
597 | return log_error_errno(r, "Could not add address: %m"); | |
598 | } | |
599 | ||
f579559b TG |
600 | return 0; |
601 | } | |
602 | ||
44e7b949 LP |
603 | int config_parse_broadcast( |
604 | const char *unit, | |
eb0ea358 TG |
605 | const char *filename, |
606 | unsigned line, | |
607 | const char *section, | |
608 | unsigned section_line, | |
609 | const char *lvalue, | |
610 | int ltype, | |
611 | const char *rvalue, | |
612 | void *data, | |
613 | void *userdata) { | |
44e7b949 | 614 | |
eb0ea358 TG |
615 | Network *network = userdata; |
616 | _cleanup_address_free_ Address *n = NULL; | |
eb0ea358 TG |
617 | int r; |
618 | ||
619 | assert(filename); | |
620 | assert(section); | |
621 | assert(lvalue); | |
622 | assert(rvalue); | |
623 | assert(data); | |
624 | ||
625 | r = address_new_static(network, section_line, &n); | |
626 | if (r < 0) | |
627 | return r; | |
628 | ||
482e2ac1 | 629 | if (n->family == AF_INET6) { |
12ca818f | 630 | log_syntax(unit, LOG_ERR, filename, line, 0, "Broadcast is not valid for IPv6 addresses, ignoring assignment: %s", rvalue); |
482e2ac1 TG |
631 | return 0; |
632 | } | |
633 | ||
44e7b949 | 634 | r = in_addr_from_string(AF_INET, rvalue, (union in_addr_union*) &n->broadcast); |
eb0ea358 | 635 | if (r < 0) { |
12ca818f | 636 | log_syntax(unit, LOG_ERR, filename, line, r, "Broadcast is invalid, ignoring assignment: %s", rvalue); |
eb0ea358 TG |
637 | return 0; |
638 | } | |
639 | ||
44e7b949 | 640 | n->family = AF_INET; |
eb0ea358 TG |
641 | n = NULL; |
642 | ||
643 | return 0; | |
644 | } | |
645 | ||
f579559b TG |
646 | int config_parse_address(const char *unit, |
647 | const char *filename, | |
648 | unsigned line, | |
649 | const char *section, | |
71a61510 | 650 | unsigned section_line, |
f579559b TG |
651 | const char *lvalue, |
652 | int ltype, | |
653 | const char *rvalue, | |
654 | void *data, | |
655 | void *userdata) { | |
44e7b949 | 656 | |
6ae115c1 | 657 | Network *network = userdata; |
f579559b | 658 | _cleanup_address_free_ Address *n = NULL; |
44e7b949 LP |
659 | const char *address, *e; |
660 | union in_addr_union buffer; | |
661 | int r, f; | |
f579559b TG |
662 | |
663 | assert(filename); | |
6ae115c1 | 664 | assert(section); |
f579559b TG |
665 | assert(lvalue); |
666 | assert(rvalue); | |
667 | assert(data); | |
668 | ||
92fe133a TG |
669 | if (streq(section, "Network")) { |
670 | /* we are not in an Address section, so treat | |
671 | * this as the special '0' section */ | |
672 | section_line = 0; | |
673 | } | |
674 | ||
f048a16b | 675 | r = address_new_static(network, section_line, &n); |
f579559b TG |
676 | if (r < 0) |
677 | return r; | |
678 | ||
679 | /* Address=address/prefixlen */ | |
680 | ||
681 | /* prefixlen */ | |
682 | e = strchr(rvalue, '/'); | |
683 | if (e) { | |
684 | unsigned i; | |
12ca818f | 685 | |
f579559b TG |
686 | r = safe_atou(e + 1, &i); |
687 | if (r < 0) { | |
12ca818f | 688 | log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length is invalid, ignoring assignment: %s", e + 1); |
f579559b TG |
689 | return 0; |
690 | } | |
691 | ||
692 | n->prefixlen = (unsigned char) i; | |
8cd11a0f | 693 | |
44e7b949 LP |
694 | address = strndupa(rvalue, e - rvalue); |
695 | } else | |
696 | address = rvalue; | |
f579559b | 697 | |
44e7b949 | 698 | r = in_addr_from_string_auto(address, &f, &buffer); |
f579559b | 699 | if (r < 0) { |
12ca818f | 700 | log_syntax(unit, LOG_ERR, filename, line, r, "Address is invalid, ignoring assignment: %s", address); |
f579559b TG |
701 | return 0; |
702 | } | |
703 | ||
a2a85a22 TG |
704 | if (!e && f == AF_INET) { |
705 | r = in_addr_default_prefixlen(&buffer.in, &n->prefixlen); | |
706 | if (r < 0) { | |
12ca818f | 707 | log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length not specified, and a default one can not be deduced for '%s', ignoring assignment", address); |
a2a85a22 TG |
708 | return 0; |
709 | } | |
710 | } | |
711 | ||
44e7b949 | 712 | if (n->family != AF_UNSPEC && f != n->family) { |
12ca818f | 713 | log_syntax(unit, LOG_ERR, filename, line, 0, "Address is incompatible, ignoring assignment: %s", address); |
44e7b949 LP |
714 | return 0; |
715 | } | |
716 | ||
717 | n->family = f; | |
718 | ||
719 | if (streq(lvalue, "Address")) | |
720 | n->in_addr = buffer; | |
721 | else | |
722 | n->in_addr_peer = buffer; | |
723 | ||
724 | if (n->family == AF_INET && n->broadcast.s_addr == 0) | |
725 | n->broadcast.s_addr = n->in_addr.in.s_addr | htonl(0xfffffffflu >> n->prefixlen); | |
eb0ea358 | 726 | |
f579559b TG |
727 | n = NULL; |
728 | ||
729 | return 0; | |
730 | } | |
6ae115c1 TG |
731 | |
732 | int config_parse_label(const char *unit, | |
733 | const char *filename, | |
734 | unsigned line, | |
735 | const char *section, | |
736 | unsigned section_line, | |
737 | const char *lvalue, | |
738 | int ltype, | |
739 | const char *rvalue, | |
740 | void *data, | |
741 | void *userdata) { | |
742 | Network *network = userdata; | |
743 | _cleanup_address_free_ Address *n = NULL; | |
6ae115c1 TG |
744 | char *label; |
745 | int r; | |
746 | ||
747 | assert(filename); | |
748 | assert(section); | |
749 | assert(lvalue); | |
750 | assert(rvalue); | |
751 | assert(data); | |
752 | ||
f048a16b | 753 | r = address_new_static(network, section_line, &n); |
6ae115c1 TG |
754 | if (r < 0) |
755 | return r; | |
756 | ||
757 | label = strdup(rvalue); | |
758 | if (!label) | |
759 | return log_oom(); | |
760 | ||
761 | if (!ascii_is_valid(label) || strlen(label) >= IFNAMSIZ) { | |
12ca818f | 762 | log_syntax(unit, LOG_ERR, filename, line, 0, "Interface label is not ASCII clean or is too long, ignoring assignment: %s", rvalue); |
6ae115c1 TG |
763 | free(label); |
764 | return 0; | |
765 | } | |
766 | ||
767 | free(n->label); | |
768 | if (*label) | |
769 | n->label = label; | |
770 | else { | |
771 | free(label); | |
772 | n->label = NULL; | |
773 | } | |
774 | ||
775 | n = NULL; | |
776 | ||
777 | return 0; | |
778 | } | |
ce6c77eb TG |
779 | |
780 | bool address_is_ready(const Address *a) { | |
781 | assert(a); | |
782 | ||
63bbe5c7 | 783 | return !(a->flags & (IFA_F_TENTATIVE | IFA_F_DEPRECATED)); |
ce6c77eb | 784 | } |