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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 | ||
f579559b | 24 | #include "conf-parser.h" |
12c2884c | 25 | #include "firewall-util.h" |
fc2f9534 | 26 | #include "netlink-util.h" |
3ac8e543 TG |
27 | #include "set.h" |
28 | #include "utf8.h" | |
29 | #include "util.h" | |
fc2f9534 | 30 | |
5a8bcb67 | 31 | #include "networkd.h" |
fc2f9534 | 32 | #include "networkd-address.h" |
f579559b | 33 | |
f0213e37 TG |
34 | int address_new(Address **ret) { |
35 | _cleanup_address_free_ Address *address = NULL; | |
36 | ||
37 | address = new0(Address, 1); | |
38 | if (!address) | |
39 | return -ENOMEM; | |
aba496a5 UTL |
40 | |
41 | address->family = AF_UNSPEC; | |
42 | address->scope = RT_SCOPE_UNIVERSE; | |
43 | address->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME; | |
44 | address->cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME; | |
f0213e37 TG |
45 | |
46 | *ret = address; | |
47 | address = NULL; | |
48 | ||
49 | return 0; | |
aba496a5 UTL |
50 | } |
51 | ||
f048a16b | 52 | int address_new_static(Network *network, unsigned section, Address **ret) { |
f579559b | 53 | _cleanup_address_free_ Address *address = NULL; |
f0213e37 | 54 | int r; |
f579559b | 55 | |
6ae115c1 | 56 | if (section) { |
16aa63a0 | 57 | address = hashmap_get(network->addresses_by_section, UINT_TO_PTR(section)); |
6ae115c1 TG |
58 | if (address) { |
59 | *ret = address; | |
60 | address = NULL; | |
61 | ||
62 | return 0; | |
63 | } | |
64 | } | |
65 | ||
f0213e37 TG |
66 | r = address_new(&address); |
67 | if (r < 0) | |
68 | return r; | |
801bd9e8 | 69 | |
f579559b TG |
70 | address->network = network; |
71 | ||
1e39ff92 | 72 | LIST_APPEND(addresses, network->static_addresses, address); |
f579559b | 73 | |
6ae115c1 TG |
74 | if (section) { |
75 | address->section = section; | |
16aa63a0 TG |
76 | hashmap_put(network->addresses_by_section, |
77 | UINT_TO_PTR(address->section), address); | |
6ae115c1 TG |
78 | } |
79 | ||
f579559b TG |
80 | *ret = address; |
81 | address = NULL; | |
82 | ||
83 | return 0; | |
84 | } | |
85 | ||
86 | void address_free(Address *address) { | |
87 | if (!address) | |
88 | return; | |
89 | ||
f048a16b | 90 | if (address->network) { |
3d3d4255 | 91 | LIST_REMOVE(addresses, address->network->static_addresses, address); |
f579559b | 92 | |
f048a16b TG |
93 | if (address->section) |
94 | hashmap_remove(address->network->addresses_by_section, | |
16aa63a0 | 95 | UINT_TO_PTR(address->section)); |
f048a16b | 96 | } |
6ae115c1 | 97 | |
adda1ed9 | 98 | if (address->link) { |
cf1d700d | 99 | set_remove(address->link->addresses, address); |
adda1ed9 TG |
100 | set_remove(address->link->addresses_foreign, address); |
101 | } | |
cf1d700d | 102 | |
f579559b TG |
103 | free(address); |
104 | } | |
105 | ||
3ac8e543 TG |
106 | static void address_hash_func(const void *b, struct siphash *state) { |
107 | const Address *a = b; | |
108 | ||
109 | assert(a); | |
110 | ||
111 | siphash24_compress(&a->family, sizeof(a->family), state); | |
112 | ||
113 | switch (a->family) { | |
114 | case AF_INET: | |
115 | siphash24_compress(&a->prefixlen, sizeof(a->prefixlen), state); | |
116 | ||
117 | /* peer prefix */ | |
118 | if (a->prefixlen != 0) { | |
119 | uint32_t prefix; | |
120 | ||
121 | if (a->in_addr_peer.in.s_addr != 0) | |
122 | prefix = be32toh(a->in_addr_peer.in.s_addr) >> (32 - a->prefixlen); | |
123 | else | |
124 | prefix = be32toh(a->in_addr.in.s_addr) >> (32 - a->prefixlen); | |
125 | ||
126 | siphash24_compress(&prefix, sizeof(prefix), state); | |
127 | } | |
128 | ||
129 | /* fallthrough */ | |
130 | case AF_INET6: | |
131 | /* local address */ | |
132 | siphash24_compress(&a->in_addr, FAMILY_ADDRESS_SIZE(a->family), state); | |
133 | ||
134 | break; | |
135 | default: | |
136 | /* treat any other address family as AF_UNSPEC */ | |
137 | break; | |
138 | } | |
139 | } | |
140 | ||
141 | static int address_compare_func(const void *c1, const void *c2) { | |
142 | const Address *a1 = c1, *a2 = c2; | |
143 | ||
144 | if (a1->family < a2->family) | |
145 | return -1; | |
146 | if (a1->family > a2->family) | |
147 | return 1; | |
148 | ||
149 | switch (a1->family) { | |
150 | /* use the same notion of equality as the kernel does */ | |
151 | case AF_INET: | |
152 | if (a1->prefixlen < a2->prefixlen) | |
153 | return -1; | |
154 | if (a1->prefixlen > a2->prefixlen) | |
155 | return 1; | |
156 | ||
157 | /* compare the peer prefixes */ | |
158 | if (a1->prefixlen != 0) { | |
159 | /* make sure we don't try to shift by 32. | |
160 | * See ISO/IEC 9899:TC3 § 6.5.7.3. */ | |
161 | uint32_t b1, b2; | |
162 | ||
163 | if (a1->in_addr_peer.in.s_addr != 0) | |
164 | b1 = be32toh(a1->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen); | |
165 | else | |
166 | b1 = be32toh(a1->in_addr.in.s_addr) >> (32 - a1->prefixlen); | |
167 | ||
168 | if (a2->in_addr_peer.in.s_addr != 0) | |
169 | b2 = be32toh(a2->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen); | |
170 | else | |
171 | b2 = be32toh(a2->in_addr.in.s_addr) >> (32 - a1->prefixlen); | |
172 | ||
173 | if (b1 < b2) | |
174 | return -1; | |
175 | if (b1 > b2) | |
176 | return 1; | |
177 | } | |
178 | ||
179 | /* fall-through */ | |
180 | case AF_INET6: | |
181 | return memcmp(&a1->in_addr, &a2->in_addr, FAMILY_ADDRESS_SIZE(a1->family)); | |
182 | default: | |
183 | /* treat any other address family as AF_UNSPEC */ | |
184 | return 0; | |
185 | } | |
186 | } | |
187 | ||
188 | static const struct hash_ops address_hash_ops = { | |
189 | .hash = address_hash_func, | |
190 | .compare = address_compare_func | |
191 | }; | |
192 | ||
193 | bool address_equal(Address *a1, Address *a2) { | |
194 | if (a1 == a2) | |
195 | return true; | |
196 | ||
197 | if (!a1 || !a2) | |
198 | return false; | |
199 | ||
200 | return address_compare_func(a1, a2) == 0; | |
201 | } | |
202 | ||
91b5f997 TG |
203 | static int address_establish(Address *address, Link *link) { |
204 | bool masq; | |
205 | int r; | |
206 | ||
207 | assert(address); | |
208 | assert(link); | |
209 | ||
210 | masq = link->network && | |
fcf50cff TG |
211 | link->network->ip_masquerade && |
212 | address->family == AF_INET && | |
213 | address->scope < RT_SCOPE_LINK; | |
91b5f997 TG |
214 | |
215 | /* Add firewall entry if this is requested */ | |
216 | if (address->ip_masquerade_done != masq) { | |
217 | union in_addr_union masked = address->in_addr; | |
218 | in_addr_mask(address->family, &masked, address->prefixlen); | |
219 | ||
220 | r = fw_add_masquerade(masq, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); | |
221 | if (r < 0) | |
222 | log_link_warning_errno(link, r, "Could not enable IP masquerading: %m"); | |
223 | ||
224 | address->ip_masquerade_done = masq; | |
225 | } | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
adda1ed9 TG |
230 | static int address_add_internal(Link *link, Set **addresses, |
231 | int family, | |
232 | const union in_addr_union *in_addr, | |
233 | unsigned char prefixlen, | |
234 | Address **ret) { | |
054f0db4 | 235 | _cleanup_address_free_ Address *address = NULL; |
cf1d700d TG |
236 | int r; |
237 | ||
238 | assert(link); | |
adda1ed9 | 239 | assert(addresses); |
054f0db4 | 240 | assert(in_addr); |
054f0db4 TG |
241 | |
242 | r = address_new(&address); | |
243 | if (r < 0) | |
244 | return r; | |
245 | ||
246 | address->family = family; | |
247 | address->in_addr = *in_addr; | |
248 | address->prefixlen = prefixlen; | |
cf1d700d | 249 | |
adda1ed9 | 250 | r = set_ensure_allocated(addresses, &address_hash_ops); |
cf1d700d TG |
251 | if (r < 0) |
252 | return r; | |
253 | ||
adda1ed9 | 254 | r = set_put(*addresses, address); |
cf1d700d TG |
255 | if (r < 0) |
256 | return r; | |
257 | ||
258 | address->link = link; | |
259 | ||
adda1ed9 TG |
260 | if (ret) |
261 | *ret = address; | |
262 | ||
054f0db4 TG |
263 | address = NULL; |
264 | ||
cf1d700d TG |
265 | return 0; |
266 | } | |
267 | ||
adda1ed9 TG |
268 | int address_add_foreign(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
269 | return address_add_internal(link, &link->addresses_foreign, family, in_addr, prefixlen, ret); | |
270 | } | |
271 | ||
272 | static int address_add(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { | |
273 | return address_add_internal(link, &link->addresses, family, in_addr, prefixlen, ret); | |
274 | } | |
275 | ||
fcf50cff | 276 | static int address_release(Address *address) { |
5a8bcb67 LP |
277 | int r; |
278 | ||
279 | assert(address); | |
fcf50cff | 280 | assert(address->link); |
5a8bcb67 | 281 | |
91b5f997 TG |
282 | /* Remove masquerading firewall entry if it was added */ |
283 | if (address->ip_masquerade_done) { | |
5a8bcb67 LP |
284 | union in_addr_union masked = address->in_addr; |
285 | in_addr_mask(address->family, &masked, address->prefixlen); | |
286 | ||
91b5f997 | 287 | r = fw_add_masquerade(false, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); |
5a8bcb67 | 288 | if (r < 0) |
fcf50cff | 289 | log_link_warning_errno(address->link, r, "Failed to disable IP masquerading: %m"); |
5a8bcb67 | 290 | |
91b5f997 | 291 | address->ip_masquerade_done = false; |
5a8bcb67 LP |
292 | } |
293 | ||
294 | return 0; | |
295 | } | |
296 | ||
36c32f61 TG |
297 | int address_update(Address *address, unsigned char flags, unsigned char scope, struct ifa_cacheinfo *cinfo) { |
298 | bool ready; | |
299 | ||
300 | assert(address); | |
301 | assert(cinfo); | |
302 | ||
303 | ready = address_is_ready(address); | |
304 | ||
adda1ed9 | 305 | address->added = true; |
36c32f61 TG |
306 | address->flags = flags; |
307 | address->scope = scope; | |
308 | address->cinfo = *cinfo; | |
309 | ||
310 | if (!ready && address_is_ready(address) && address->link) | |
311 | link_check_ready(address->link); | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
91b5f997 | 316 | int address_drop(Address *address) { |
8012cd39 TG |
317 | Link *link; |
318 | bool ready; | |
319 | ||
5a8bcb67 | 320 | assert(address); |
91b5f997 | 321 | |
8012cd39 TG |
322 | ready = address_is_ready(address); |
323 | link = address->link; | |
324 | ||
fcf50cff | 325 | address_release(address); |
91b5f997 TG |
326 | address_free(address); |
327 | ||
8012cd39 TG |
328 | if (link && !ready) |
329 | link_check_ready(link); | |
330 | ||
91b5f997 TG |
331 | return 0; |
332 | } | |
333 | ||
334 | int address_get(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { | |
335 | Address address = {}, *existing; | |
336 | ||
5a8bcb67 | 337 | assert(link); |
91b5f997 TG |
338 | assert(in_addr); |
339 | assert(ret); | |
5a8bcb67 | 340 | |
91b5f997 TG |
341 | address.family = family; |
342 | address.in_addr = *in_addr; | |
343 | address.prefixlen = prefixlen; | |
5a8bcb67 | 344 | |
91b5f997 | 345 | existing = set_get(link->addresses, &address); |
adda1ed9 TG |
346 | if (!existing) { |
347 | existing = set_get(link->addresses_foreign, &address); | |
348 | if (!existing) | |
349 | return -ENOENT; | |
350 | } | |
5a8bcb67 | 351 | |
91b5f997 | 352 | *ret = existing; |
5a8bcb67 LP |
353 | |
354 | return 0; | |
355 | } | |
356 | ||
91b5f997 | 357 | int address_remove(Address *address, Link *link, |
1c4baffc TG |
358 | sd_netlink_message_handler_t callback) { |
359 | _cleanup_netlink_message_unref_ sd_netlink_message *req = NULL; | |
407fe036 TG |
360 | int r; |
361 | ||
362 | assert(address); | |
363 | assert(address->family == AF_INET || address->family == AF_INET6); | |
364 | assert(link); | |
365 | assert(link->ifindex > 0); | |
366 | assert(link->manager); | |
367 | assert(link->manager->rtnl); | |
368 | ||
151b9b96 LP |
369 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDR, |
370 | link->ifindex, address->family); | |
eb56eb9b MS |
371 | if (r < 0) |
372 | return log_error_errno(r, "Could not allocate RTM_DELADDR message: %m"); | |
407fe036 | 373 | |
5a723174 | 374 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b MS |
375 | if (r < 0) |
376 | return log_error_errno(r, "Could not set prefixlen: %m"); | |
5a723174 | 377 | |
407fe036 | 378 | if (address->family == AF_INET) |
1c4baffc | 379 | r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in); |
407fe036 | 380 | else if (address->family == AF_INET6) |
1c4baffc | 381 | r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6); |
eb56eb9b MS |
382 | if (r < 0) |
383 | return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m"); | |
407fe036 | 384 | |
1c4baffc | 385 | r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); |
eb56eb9b MS |
386 | if (r < 0) |
387 | return log_error_errno(r, "Could not send rtnetlink message: %m"); | |
407fe036 | 388 | |
563c69c6 TG |
389 | link_ref(link); |
390 | ||
407fe036 TG |
391 | return 0; |
392 | } | |
393 | ||
11bf3cce LP |
394 | static int address_acquire(Link *link, Address *original, Address **ret) { |
395 | union in_addr_union in_addr = {}; | |
396 | struct in_addr broadcast = {}; | |
0099bc15 | 397 | _cleanup_address_free_ Address *na = NULL; |
11bf3cce LP |
398 | int r; |
399 | ||
400 | assert(link); | |
401 | assert(original); | |
402 | assert(ret); | |
403 | ||
404 | /* Something useful was configured? just use it */ | |
af93291c | 405 | if (in_addr_is_null(original->family, &original->in_addr) <= 0) |
11bf3cce LP |
406 | return 0; |
407 | ||
408 | /* The address is configured to be 0.0.0.0 or [::] by the user? | |
409 | * Then let's acquire something more useful from the pool. */ | |
410 | r = manager_address_pool_acquire(link->manager, original->family, original->prefixlen, &in_addr); | |
6a7a4e4d LP |
411 | if (r < 0) |
412 | return log_link_error_errno(link, r, "Failed to acquire address from pool: %m"); | |
11bf3cce | 413 | if (r == 0) { |
79008bdd | 414 | log_link_error(link, "Couldn't find free address for interface, all taken."); |
11bf3cce LP |
415 | return -EBUSY; |
416 | } | |
417 | ||
418 | if (original->family == AF_INET) { | |
d076c6f9 | 419 | /* Pick first address in range for ourselves ... */ |
11bf3cce LP |
420 | in_addr.in.s_addr = in_addr.in.s_addr | htobe32(1); |
421 | ||
422 | /* .. and use last as broadcast address */ | |
423 | broadcast.s_addr = in_addr.in.s_addr | htobe32(0xFFFFFFFFUL >> original->prefixlen); | |
424 | } else if (original->family == AF_INET6) | |
425 | in_addr.in6.s6_addr[15] |= 1; | |
426 | ||
f0213e37 | 427 | r = address_new(&na); |
11bf3cce LP |
428 | if (r < 0) |
429 | return r; | |
430 | ||
431 | na->family = original->family; | |
432 | na->prefixlen = original->prefixlen; | |
433 | na->scope = original->scope; | |
434 | na->cinfo = original->cinfo; | |
435 | ||
436 | if (original->label) { | |
437 | na->label = strdup(original->label); | |
0099bc15 | 438 | if (!na->label) |
11bf3cce | 439 | return -ENOMEM; |
11bf3cce LP |
440 | } |
441 | ||
442 | na->broadcast = broadcast; | |
443 | na->in_addr = in_addr; | |
444 | ||
445 | LIST_PREPEND(addresses, link->pool_addresses, na); | |
446 | ||
447 | *ret = na; | |
0099bc15 SS |
448 | na = NULL; |
449 | ||
11bf3cce LP |
450 | return 0; |
451 | } | |
452 | ||
66669078 | 453 | int address_configure(Address *address, Link *link, sd_netlink_message_handler_t callback, bool update) { |
1c4baffc | 454 | _cleanup_netlink_message_unref_ sd_netlink_message *req = NULL; |
f579559b TG |
455 | int r; |
456 | ||
c166a070 TG |
457 | assert(address); |
458 | assert(address->family == AF_INET || address->family == AF_INET6); | |
459 | assert(link); | |
460 | assert(link->ifindex > 0); | |
f882c247 | 461 | assert(link->manager); |
c166a070 | 462 | assert(link->manager->rtnl); |
f882c247 | 463 | |
11bf3cce LP |
464 | r = address_acquire(link, address, &address); |
465 | if (r < 0) | |
466 | return r; | |
467 | ||
66669078 TG |
468 | if (update) |
469 | r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req, | |
470 | link->ifindex, address->family); | |
471 | else | |
472 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_NEWADDR, | |
473 | link->ifindex, address->family); | |
eb56eb9b MS |
474 | if (r < 0) |
475 | return log_error_errno(r, "Could not allocate RTM_NEWADDR message: %m"); | |
f579559b | 476 | |
5a723174 | 477 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b MS |
478 | if (r < 0) |
479 | return log_error_errno(r, "Could not set prefixlen: %m"); | |
5a723174 | 480 | |
851c9f82 PF |
481 | address->flags |= IFA_F_PERMANENT; |
482 | ||
483 | r = sd_rtnl_message_addr_set_flags(req, (address->flags & 0xff)); | |
eb56eb9b MS |
484 | if (r < 0) |
485 | return log_error_errno(r, "Could not set flags: %m"); | |
5a723174 | 486 | |
851c9f82 | 487 | if (address->flags & ~0xff) { |
1c4baffc | 488 | r = sd_netlink_message_append_u32(req, IFA_FLAGS, address->flags); |
851c9f82 PF |
489 | if (r < 0) |
490 | return log_error_errno(r, "Could not set extended flags: %m"); | |
491 | } | |
492 | ||
5c1d3fc9 | 493 | r = sd_rtnl_message_addr_set_scope(req, address->scope); |
eb56eb9b MS |
494 | if (r < 0) |
495 | return log_error_errno(r, "Could not set scope: %m"); | |
5a723174 | 496 | |
0a0dc69b | 497 | if (address->family == AF_INET) |
1c4baffc | 498 | r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in); |
0a0dc69b | 499 | else if (address->family == AF_INET6) |
1c4baffc | 500 | r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6); |
eb56eb9b MS |
501 | if (r < 0) |
502 | return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m"); | |
f579559b | 503 | |
af93291c | 504 | if (!in_addr_is_null(address->family, &address->in_addr_peer)) { |
c081882f | 505 | if (address->family == AF_INET) |
1c4baffc | 506 | r = sd_netlink_message_append_in_addr(req, IFA_ADDRESS, &address->in_addr_peer.in); |
c081882f | 507 | else if (address->family == AF_INET6) |
1c4baffc | 508 | r = sd_netlink_message_append_in6_addr(req, IFA_ADDRESS, &address->in_addr_peer.in6); |
eb56eb9b MS |
509 | if (r < 0) |
510 | return log_error_errno(r, "Could not append IFA_ADDRESS attribute: %m"); | |
c081882f SS |
511 | } else { |
512 | if (address->family == AF_INET) { | |
1c4baffc | 513 | r = sd_netlink_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast); |
eb56eb9b MS |
514 | if (r < 0) |
515 | return log_error_errno(r, "Could not append IFA_BROADCAST attribute: %m"); | |
c081882f | 516 | } |
f579559b TG |
517 | } |
518 | ||
519 | if (address->label) { | |
1c4baffc | 520 | r = sd_netlink_message_append_string(req, IFA_LABEL, address->label); |
eb56eb9b MS |
521 | if (r < 0) |
522 | return log_error_errno(r, "Could not append IFA_LABEL attribute: %m"); | |
f579559b TG |
523 | } |
524 | ||
1c4baffc | 525 | r = sd_netlink_message_append_cache_info(req, IFA_CACHEINFO, |
68ceb9df | 526 | &address->cinfo); |
eb56eb9b MS |
527 | if (r < 0) |
528 | return log_error_errno(r, "Could not append IFA_CACHEINFO attribute: %m"); | |
68ceb9df | 529 | |
fcf50cff | 530 | r = address_establish(address, link); |
eb56eb9b | 531 | if (r < 0) |
fcf50cff TG |
532 | return r; |
533 | ||
534 | r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); | |
535 | if (r < 0) { | |
536 | address_release(address); | |
eb56eb9b | 537 | return log_error_errno(r, "Could not send rtnetlink message: %m"); |
fcf50cff | 538 | } |
f579559b | 539 | |
563c69c6 TG |
540 | link_ref(link); |
541 | ||
adda1ed9 TG |
542 | r = address_add(link, address->family, &address->in_addr, address->prefixlen, NULL); |
543 | if (r < 0) { | |
544 | address_release(address); | |
545 | return log_error_errno(r, "Could not add address: %m"); | |
546 | } | |
547 | ||
f579559b TG |
548 | return 0; |
549 | } | |
550 | ||
44e7b949 LP |
551 | int config_parse_broadcast( |
552 | const char *unit, | |
eb0ea358 TG |
553 | const char *filename, |
554 | unsigned line, | |
555 | const char *section, | |
556 | unsigned section_line, | |
557 | const char *lvalue, | |
558 | int ltype, | |
559 | const char *rvalue, | |
560 | void *data, | |
561 | void *userdata) { | |
44e7b949 | 562 | |
eb0ea358 TG |
563 | Network *network = userdata; |
564 | _cleanup_address_free_ Address *n = NULL; | |
eb0ea358 TG |
565 | int r; |
566 | ||
567 | assert(filename); | |
568 | assert(section); | |
569 | assert(lvalue); | |
570 | assert(rvalue); | |
571 | assert(data); | |
572 | ||
573 | r = address_new_static(network, section_line, &n); | |
574 | if (r < 0) | |
575 | return r; | |
576 | ||
482e2ac1 | 577 | if (n->family == AF_INET6) { |
12ca818f | 578 | log_syntax(unit, LOG_ERR, filename, line, 0, "Broadcast is not valid for IPv6 addresses, ignoring assignment: %s", rvalue); |
482e2ac1 TG |
579 | return 0; |
580 | } | |
581 | ||
44e7b949 | 582 | r = in_addr_from_string(AF_INET, rvalue, (union in_addr_union*) &n->broadcast); |
eb0ea358 | 583 | if (r < 0) { |
12ca818f | 584 | log_syntax(unit, LOG_ERR, filename, line, r, "Broadcast is invalid, ignoring assignment: %s", rvalue); |
eb0ea358 TG |
585 | return 0; |
586 | } | |
587 | ||
44e7b949 | 588 | n->family = AF_INET; |
eb0ea358 TG |
589 | n = NULL; |
590 | ||
591 | return 0; | |
592 | } | |
593 | ||
f579559b TG |
594 | int config_parse_address(const char *unit, |
595 | const char *filename, | |
596 | unsigned line, | |
597 | const char *section, | |
71a61510 | 598 | unsigned section_line, |
f579559b TG |
599 | const char *lvalue, |
600 | int ltype, | |
601 | const char *rvalue, | |
602 | void *data, | |
603 | void *userdata) { | |
44e7b949 | 604 | |
6ae115c1 | 605 | Network *network = userdata; |
f579559b | 606 | _cleanup_address_free_ Address *n = NULL; |
44e7b949 LP |
607 | const char *address, *e; |
608 | union in_addr_union buffer; | |
609 | int r, f; | |
f579559b TG |
610 | |
611 | assert(filename); | |
6ae115c1 | 612 | assert(section); |
f579559b TG |
613 | assert(lvalue); |
614 | assert(rvalue); | |
615 | assert(data); | |
616 | ||
92fe133a TG |
617 | if (streq(section, "Network")) { |
618 | /* we are not in an Address section, so treat | |
619 | * this as the special '0' section */ | |
620 | section_line = 0; | |
621 | } | |
622 | ||
f048a16b | 623 | r = address_new_static(network, section_line, &n); |
f579559b TG |
624 | if (r < 0) |
625 | return r; | |
626 | ||
627 | /* Address=address/prefixlen */ | |
628 | ||
629 | /* prefixlen */ | |
630 | e = strchr(rvalue, '/'); | |
631 | if (e) { | |
632 | unsigned i; | |
12ca818f | 633 | |
f579559b TG |
634 | r = safe_atou(e + 1, &i); |
635 | if (r < 0) { | |
12ca818f | 636 | log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length is invalid, ignoring assignment: %s", e + 1); |
f579559b TG |
637 | return 0; |
638 | } | |
639 | ||
640 | n->prefixlen = (unsigned char) i; | |
8cd11a0f | 641 | |
44e7b949 LP |
642 | address = strndupa(rvalue, e - rvalue); |
643 | } else | |
644 | address = rvalue; | |
f579559b | 645 | |
44e7b949 | 646 | r = in_addr_from_string_auto(address, &f, &buffer); |
f579559b | 647 | if (r < 0) { |
12ca818f | 648 | log_syntax(unit, LOG_ERR, filename, line, r, "Address is invalid, ignoring assignment: %s", address); |
f579559b TG |
649 | return 0; |
650 | } | |
651 | ||
a2a85a22 TG |
652 | if (!e && f == AF_INET) { |
653 | r = in_addr_default_prefixlen(&buffer.in, &n->prefixlen); | |
654 | if (r < 0) { | |
12ca818f | 655 | 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 |
656 | return 0; |
657 | } | |
658 | } | |
659 | ||
44e7b949 | 660 | if (n->family != AF_UNSPEC && f != n->family) { |
12ca818f | 661 | log_syntax(unit, LOG_ERR, filename, line, 0, "Address is incompatible, ignoring assignment: %s", address); |
44e7b949 LP |
662 | return 0; |
663 | } | |
664 | ||
665 | n->family = f; | |
666 | ||
667 | if (streq(lvalue, "Address")) | |
668 | n->in_addr = buffer; | |
669 | else | |
670 | n->in_addr_peer = buffer; | |
671 | ||
672 | if (n->family == AF_INET && n->broadcast.s_addr == 0) | |
673 | n->broadcast.s_addr = n->in_addr.in.s_addr | htonl(0xfffffffflu >> n->prefixlen); | |
eb0ea358 | 674 | |
f579559b TG |
675 | n = NULL; |
676 | ||
677 | return 0; | |
678 | } | |
6ae115c1 TG |
679 | |
680 | int config_parse_label(const char *unit, | |
681 | const char *filename, | |
682 | unsigned line, | |
683 | const char *section, | |
684 | unsigned section_line, | |
685 | const char *lvalue, | |
686 | int ltype, | |
687 | const char *rvalue, | |
688 | void *data, | |
689 | void *userdata) { | |
690 | Network *network = userdata; | |
691 | _cleanup_address_free_ Address *n = NULL; | |
6ae115c1 TG |
692 | char *label; |
693 | int r; | |
694 | ||
695 | assert(filename); | |
696 | assert(section); | |
697 | assert(lvalue); | |
698 | assert(rvalue); | |
699 | assert(data); | |
700 | ||
f048a16b | 701 | r = address_new_static(network, section_line, &n); |
6ae115c1 TG |
702 | if (r < 0) |
703 | return r; | |
704 | ||
705 | label = strdup(rvalue); | |
706 | if (!label) | |
707 | return log_oom(); | |
708 | ||
709 | if (!ascii_is_valid(label) || strlen(label) >= IFNAMSIZ) { | |
12ca818f | 710 | log_syntax(unit, LOG_ERR, filename, line, 0, "Interface label is not ASCII clean or is too long, ignoring assignment: %s", rvalue); |
6ae115c1 TG |
711 | free(label); |
712 | return 0; | |
713 | } | |
714 | ||
715 | free(n->label); | |
716 | if (*label) | |
717 | n->label = label; | |
718 | else { | |
719 | free(label); | |
720 | n->label = NULL; | |
721 | } | |
722 | ||
723 | n = NULL; | |
724 | ||
725 | return 0; | |
726 | } | |
ce6c77eb TG |
727 | |
728 | bool address_is_ready(const Address *a) { | |
729 | assert(a); | |
730 | ||
adda1ed9 | 731 | return a->added && !(a->flags & (IFA_F_TENTATIVE | IFA_F_DEPRECATED)); |
ce6c77eb | 732 | } |