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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" |
fc2f9534 | 8 | #include "netlink-util.h" |
6bedfcbb | 9 | #include "networkd-address.h" |
23f53b99 | 10 | #include "networkd-manager.h" |
6bedfcbb | 11 | #include "parse-util.h" |
3ac8e543 | 12 | #include "set.h" |
d31645ad | 13 | #include "socket-util.h" |
07630cea | 14 | #include "string-util.h" |
51517f9e | 15 | #include "strv.h" |
3ac8e543 TG |
16 | #include "utf8.h" |
17 | #include "util.h" | |
f579559b | 18 | |
1b566071 | 19 | #define ADDRESSES_PER_LINK_MAX 2048U |
8c34b963 LP |
20 | #define STATIC_ADDRESSES_PER_NETWORK_MAX 1024U |
21 | ||
f0213e37 | 22 | int address_new(Address **ret) { |
8e766630 | 23 | _cleanup_(address_freep) Address *address = NULL; |
f0213e37 TG |
24 | |
25 | address = new0(Address, 1); | |
26 | if (!address) | |
27 | return -ENOMEM; | |
aba496a5 UTL |
28 | |
29 | address->family = AF_UNSPEC; | |
30 | address->scope = RT_SCOPE_UNIVERSE; | |
31 | address->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME; | |
32 | address->cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME; | |
f0213e37 | 33 | |
1cc6c93a | 34 | *ret = TAKE_PTR(address); |
f0213e37 TG |
35 | |
36 | return 0; | |
aba496a5 UTL |
37 | } |
38 | ||
f4859fc7 | 39 | int address_new_static(Network *network, const char *filename, unsigned section_line, Address **ret) { |
8e766630 LP |
40 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
41 | _cleanup_(address_freep) Address *address = NULL; | |
f0213e37 | 42 | int r; |
f579559b | 43 | |
8c34b963 LP |
44 | assert(network); |
45 | assert(ret); | |
48317c39 | 46 | assert(!!filename == (section_line > 0)); |
8c34b963 | 47 | |
48317c39 | 48 | if (filename) { |
f4859fc7 SS |
49 | r = network_config_section_new(filename, section_line, &n); |
50 | if (r < 0) | |
51 | return r; | |
52 | ||
53 | address = hashmap_get(network->addresses_by_section, n); | |
6ae115c1 | 54 | if (address) { |
1cc6c93a | 55 | *ret = TAKE_PTR(address); |
6ae115c1 TG |
56 | |
57 | return 0; | |
58 | } | |
59 | } | |
60 | ||
8c34b963 LP |
61 | if (network->n_static_addresses >= STATIC_ADDRESSES_PER_NETWORK_MAX) |
62 | return -E2BIG; | |
63 | ||
f0213e37 TG |
64 | r = address_new(&address); |
65 | if (r < 0) | |
66 | return r; | |
801bd9e8 | 67 | |
48317c39 | 68 | if (filename) { |
1cc6c93a | 69 | address->section = TAKE_PTR(n); |
fcc48287 | 70 | |
f7fe70ea SS |
71 | r = hashmap_put(network->addresses_by_section, address->section, address); |
72 | if (r < 0) | |
73 | return r; | |
6ae115c1 TG |
74 | } |
75 | ||
5215524d SS |
76 | address->network = network; |
77 | LIST_APPEND(addresses, network->static_addresses, address); | |
8c34b963 | 78 | network->n_static_addresses++; |
5215524d | 79 | |
1cc6c93a | 80 | *ret = TAKE_PTR(address); |
f579559b TG |
81 | |
82 | return 0; | |
83 | } | |
84 | ||
85 | void address_free(Address *address) { | |
86 | if (!address) | |
87 | return; | |
88 | ||
f048a16b | 89 | if (address->network) { |
3d3d4255 | 90 | LIST_REMOVE(addresses, address->network->static_addresses, address); |
8c34b963 LP |
91 | assert(address->network->n_static_addresses > 0); |
92 | address->network->n_static_addresses--; | |
f579559b | 93 | |
f4859fc7 SS |
94 | if (address->section) { |
95 | hashmap_remove(address->network->addresses_by_section, address->section); | |
96 | network_config_section_free(address->section); | |
97 | } | |
f048a16b | 98 | } |
6ae115c1 | 99 | |
adda1ed9 | 100 | if (address->link) { |
cf1d700d | 101 | set_remove(address->link->addresses, address); |
adda1ed9 | 102 | set_remove(address->link->addresses_foreign, address); |
f150100a SS |
103 | |
104 | if (in_addr_equal(AF_INET6, &address->in_addr, (const union in_addr_union *) &address->link->ipv6ll_address)) | |
105 | memzero(&address->link->ipv6ll_address, sizeof(struct in6_addr)); | |
adda1ed9 | 106 | } |
cf1d700d | 107 | |
f579559b TG |
108 | free(address); |
109 | } | |
110 | ||
3ac8e543 TG |
111 | static void address_hash_func(const void *b, struct siphash *state) { |
112 | const Address *a = b; | |
113 | ||
114 | assert(a); | |
115 | ||
116 | siphash24_compress(&a->family, sizeof(a->family), state); | |
117 | ||
118 | switch (a->family) { | |
119 | case AF_INET: | |
120 | siphash24_compress(&a->prefixlen, sizeof(a->prefixlen), state); | |
121 | ||
122 | /* peer prefix */ | |
123 | if (a->prefixlen != 0) { | |
124 | uint32_t prefix; | |
125 | ||
126 | if (a->in_addr_peer.in.s_addr != 0) | |
127 | prefix = be32toh(a->in_addr_peer.in.s_addr) >> (32 - a->prefixlen); | |
128 | else | |
129 | prefix = be32toh(a->in_addr.in.s_addr) >> (32 - a->prefixlen); | |
130 | ||
131 | siphash24_compress(&prefix, sizeof(prefix), state); | |
132 | } | |
133 | ||
4831981d | 134 | _fallthrough_; |
3ac8e543 TG |
135 | case AF_INET6: |
136 | /* local address */ | |
137 | siphash24_compress(&a->in_addr, FAMILY_ADDRESS_SIZE(a->family), state); | |
138 | ||
139 | break; | |
140 | default: | |
141 | /* treat any other address family as AF_UNSPEC */ | |
142 | break; | |
143 | } | |
144 | } | |
145 | ||
146 | static int address_compare_func(const void *c1, const void *c2) { | |
147 | const Address *a1 = c1, *a2 = c2; | |
a0edd02e | 148 | int r; |
3ac8e543 | 149 | |
a0edd02e FB |
150 | r = CMP(a1->family, a2->family); |
151 | if (r != 0) | |
152 | return r; | |
3ac8e543 TG |
153 | |
154 | switch (a1->family) { | |
155 | /* use the same notion of equality as the kernel does */ | |
156 | case AF_INET: | |
a0edd02e FB |
157 | r = CMP(a1->prefixlen, a2->prefixlen); |
158 | if (r != 0) | |
159 | return r; | |
3ac8e543 TG |
160 | |
161 | /* compare the peer prefixes */ | |
162 | if (a1->prefixlen != 0) { | |
163 | /* make sure we don't try to shift by 32. | |
164 | * See ISO/IEC 9899:TC3 § 6.5.7.3. */ | |
165 | uint32_t b1, b2; | |
166 | ||
167 | if (a1->in_addr_peer.in.s_addr != 0) | |
168 | b1 = be32toh(a1->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen); | |
169 | else | |
170 | b1 = be32toh(a1->in_addr.in.s_addr) >> (32 - a1->prefixlen); | |
171 | ||
172 | if (a2->in_addr_peer.in.s_addr != 0) | |
173 | b2 = be32toh(a2->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen); | |
174 | else | |
175 | b2 = be32toh(a2->in_addr.in.s_addr) >> (32 - a1->prefixlen); | |
176 | ||
a0edd02e FB |
177 | r = CMP(b1, b2); |
178 | if (r != 0) | |
179 | return r; | |
3ac8e543 TG |
180 | } |
181 | ||
4831981d | 182 | _fallthrough_; |
3ac8e543 TG |
183 | case AF_INET6: |
184 | return memcmp(&a1->in_addr, &a2->in_addr, FAMILY_ADDRESS_SIZE(a1->family)); | |
185 | default: | |
186 | /* treat any other address family as AF_UNSPEC */ | |
187 | return 0; | |
188 | } | |
189 | } | |
190 | ||
191 | static const struct hash_ops address_hash_ops = { | |
192 | .hash = address_hash_func, | |
193 | .compare = address_compare_func | |
194 | }; | |
195 | ||
196 | bool address_equal(Address *a1, Address *a2) { | |
197 | if (a1 == a2) | |
198 | return true; | |
199 | ||
200 | if (!a1 || !a2) | |
201 | return false; | |
202 | ||
203 | return address_compare_func(a1, a2) == 0; | |
204 | } | |
205 | ||
91b5f997 TG |
206 | static int address_establish(Address *address, Link *link) { |
207 | bool masq; | |
208 | int r; | |
209 | ||
210 | assert(address); | |
211 | assert(link); | |
212 | ||
213 | masq = link->network && | |
fcf50cff TG |
214 | link->network->ip_masquerade && |
215 | address->family == AF_INET && | |
216 | address->scope < RT_SCOPE_LINK; | |
91b5f997 TG |
217 | |
218 | /* Add firewall entry if this is requested */ | |
219 | if (address->ip_masquerade_done != masq) { | |
220 | union in_addr_union masked = address->in_addr; | |
221 | in_addr_mask(address->family, &masked, address->prefixlen); | |
222 | ||
223 | r = fw_add_masquerade(masq, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); | |
224 | if (r < 0) | |
225 | log_link_warning_errno(link, r, "Could not enable IP masquerading: %m"); | |
226 | ||
227 | address->ip_masquerade_done = masq; | |
228 | } | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
adda1ed9 TG |
233 | static int address_add_internal(Link *link, Set **addresses, |
234 | int family, | |
235 | const union in_addr_union *in_addr, | |
236 | unsigned char prefixlen, | |
237 | Address **ret) { | |
8e766630 | 238 | _cleanup_(address_freep) Address *address = NULL; |
cf1d700d TG |
239 | int r; |
240 | ||
241 | assert(link); | |
adda1ed9 | 242 | assert(addresses); |
054f0db4 | 243 | assert(in_addr); |
054f0db4 TG |
244 | |
245 | r = address_new(&address); | |
246 | if (r < 0) | |
247 | return r; | |
248 | ||
249 | address->family = family; | |
250 | address->in_addr = *in_addr; | |
251 | address->prefixlen = prefixlen; | |
63bbe5c7 TG |
252 | /* Consider address tentative until we get the real flags from the kernel */ |
253 | address->flags = IFA_F_TENTATIVE; | |
cf1d700d | 254 | |
adda1ed9 | 255 | r = set_ensure_allocated(addresses, &address_hash_ops); |
cf1d700d TG |
256 | if (r < 0) |
257 | return r; | |
258 | ||
adda1ed9 | 259 | r = set_put(*addresses, address); |
cf1d700d TG |
260 | if (r < 0) |
261 | return r; | |
262 | ||
263 | address->link = link; | |
264 | ||
adda1ed9 TG |
265 | if (ret) |
266 | *ret = address; | |
267 | ||
054f0db4 TG |
268 | address = NULL; |
269 | ||
cf1d700d TG |
270 | return 0; |
271 | } | |
272 | ||
adda1ed9 TG |
273 | int address_add_foreign(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
274 | return address_add_internal(link, &link->addresses_foreign, family, in_addr, prefixlen, ret); | |
275 | } | |
276 | ||
c4a03a56 | 277 | int address_add(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
cab974b0 | 278 | Address *address; |
e7780c8d TG |
279 | int r; |
280 | ||
cab974b0 TG |
281 | r = address_get(link, family, in_addr, prefixlen, &address); |
282 | if (r == -ENOENT) { | |
283 | /* Address does not exist, create a new one */ | |
284 | r = address_add_internal(link, &link->addresses, family, in_addr, prefixlen, &address); | |
285 | if (r < 0) | |
286 | return r; | |
287 | } else if (r == 0) { | |
288 | /* Take over a foreign address */ | |
289 | r = set_ensure_allocated(&link->addresses, &address_hash_ops); | |
290 | if (r < 0) | |
291 | return r; | |
292 | ||
293 | r = set_put(link->addresses, address); | |
294 | if (r < 0) | |
295 | return r; | |
296 | ||
297 | set_remove(link->addresses_foreign, address); | |
298 | } else if (r == 1) { | |
299 | /* Already exists, do nothing */ | |
300 | ; | |
301 | } else | |
e7780c8d TG |
302 | return r; |
303 | ||
cab974b0 TG |
304 | if (ret) |
305 | *ret = address; | |
e7780c8d TG |
306 | |
307 | return 0; | |
adda1ed9 TG |
308 | } |
309 | ||
fcf50cff | 310 | static int address_release(Address *address) { |
5a8bcb67 LP |
311 | int r; |
312 | ||
313 | assert(address); | |
fcf50cff | 314 | assert(address->link); |
5a8bcb67 | 315 | |
91b5f997 TG |
316 | /* Remove masquerading firewall entry if it was added */ |
317 | if (address->ip_masquerade_done) { | |
5a8bcb67 LP |
318 | union in_addr_union masked = address->in_addr; |
319 | in_addr_mask(address->family, &masked, address->prefixlen); | |
320 | ||
91b5f997 | 321 | r = fw_add_masquerade(false, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); |
5a8bcb67 | 322 | if (r < 0) |
fcf50cff | 323 | log_link_warning_errno(address->link, r, "Failed to disable IP masquerading: %m"); |
5a8bcb67 | 324 | |
91b5f997 | 325 | address->ip_masquerade_done = false; |
5a8bcb67 LP |
326 | } |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
889b550f LP |
331 | int address_update( |
332 | Address *address, | |
333 | unsigned char flags, | |
334 | unsigned char scope, | |
335 | const struct ifa_cacheinfo *cinfo) { | |
336 | ||
36c32f61 | 337 | bool ready; |
e7ab854c | 338 | int r; |
36c32f61 TG |
339 | |
340 | assert(address); | |
341 | assert(cinfo); | |
7209086d SS |
342 | assert_return(address->link, 1); |
343 | ||
344 | if (IN_SET(address->link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
345 | return 1; | |
36c32f61 TG |
346 | |
347 | ready = address_is_ready(address); | |
348 | ||
349 | address->flags = flags; | |
350 | address->scope = scope; | |
351 | address->cinfo = *cinfo; | |
352 | ||
7209086d SS |
353 | link_update_operstate(address->link); |
354 | ||
355 | if (!ready && address_is_ready(address)) { | |
356 | link_check_ready(address->link); | |
357 | ||
358 | if (address->family == AF_INET6 && | |
359 | in_addr_is_link_local(AF_INET6, &address->in_addr) > 0 && | |
360 | in_addr_is_null(AF_INET6, (const union in_addr_union*) &address->link->ipv6ll_address) > 0) { | |
361 | ||
362 | r = link_ipv6ll_gained(address->link, &address->in_addr.in6); | |
363 | if (r < 0) | |
364 | return r; | |
e7ab854c | 365 | } |
a3a019e1 | 366 | } |
36c32f61 TG |
367 | |
368 | return 0; | |
369 | } | |
370 | ||
91b5f997 | 371 | int address_drop(Address *address) { |
8012cd39 TG |
372 | Link *link; |
373 | bool ready; | |
374 | ||
5a8bcb67 | 375 | assert(address); |
91b5f997 | 376 | |
8012cd39 TG |
377 | ready = address_is_ready(address); |
378 | link = address->link; | |
379 | ||
fcf50cff | 380 | address_release(address); |
91b5f997 TG |
381 | address_free(address); |
382 | ||
84de38c5 TG |
383 | link_update_operstate(link); |
384 | ||
8012cd39 TG |
385 | if (link && !ready) |
386 | link_check_ready(link); | |
387 | ||
91b5f997 TG |
388 | return 0; |
389 | } | |
390 | ||
1b566071 LP |
391 | int address_get(Link *link, |
392 | int family, | |
393 | const union in_addr_union *in_addr, | |
394 | unsigned char prefixlen, | |
395 | Address **ret) { | |
396 | ||
397 | Address address, *existing; | |
91b5f997 | 398 | |
5a8bcb67 | 399 | assert(link); |
91b5f997 | 400 | assert(in_addr); |
5a8bcb67 | 401 | |
1b566071 LP |
402 | address = (Address) { |
403 | .family = family, | |
404 | .in_addr = *in_addr, | |
405 | .prefixlen = prefixlen, | |
406 | }; | |
5a8bcb67 | 407 | |
91b5f997 | 408 | existing = set_get(link->addresses, &address); |
cab974b0 | 409 | if (existing) { |
1b566071 LP |
410 | if (ret) |
411 | *ret = existing; | |
cab974b0 | 412 | return 1; |
adda1ed9 | 413 | } |
5a8bcb67 | 414 | |
1b566071 LP |
415 | existing = set_get(link->addresses_foreign, &address); |
416 | if (existing) { | |
417 | if (ret) | |
418 | *ret = existing; | |
419 | return 0; | |
420 | } | |
5a8bcb67 | 421 | |
1b566071 | 422 | return -ENOENT; |
5a8bcb67 LP |
423 | } |
424 | ||
483d099e ZJS |
425 | int address_remove( |
426 | Address *address, | |
427 | Link *link, | |
428 | sd_netlink_message_handler_t callback) { | |
429 | ||
4afd3348 | 430 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
407fe036 TG |
431 | int r; |
432 | ||
433 | assert(address); | |
4c701096 | 434 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
407fe036 TG |
435 | assert(link); |
436 | assert(link->ifindex > 0); | |
437 | assert(link->manager); | |
438 | assert(link->manager->rtnl); | |
439 | ||
151b9b96 LP |
440 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDR, |
441 | link->ifindex, address->family); | |
eb56eb9b MS |
442 | if (r < 0) |
443 | return log_error_errno(r, "Could not allocate RTM_DELADDR message: %m"); | |
407fe036 | 444 | |
5a723174 | 445 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b MS |
446 | if (r < 0) |
447 | return log_error_errno(r, "Could not set prefixlen: %m"); | |
5a723174 | 448 | |
407fe036 | 449 | if (address->family == AF_INET) |
1c4baffc | 450 | r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in); |
407fe036 | 451 | else if (address->family == AF_INET6) |
1c4baffc | 452 | r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6); |
eb56eb9b MS |
453 | if (r < 0) |
454 | return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m"); | |
407fe036 | 455 | |
ee38400b | 456 | r = sd_netlink_call_async(link->manager->rtnl, NULL, req, callback, |
8190a388 | 457 | link_netlink_destroy_callback, link, 0, __func__); |
eb56eb9b MS |
458 | if (r < 0) |
459 | return log_error_errno(r, "Could not send rtnetlink message: %m"); | |
407fe036 | 460 | |
563c69c6 TG |
461 | link_ref(link); |
462 | ||
407fe036 TG |
463 | return 0; |
464 | } | |
465 | ||
11bf3cce LP |
466 | static int address_acquire(Link *link, Address *original, Address **ret) { |
467 | union in_addr_union in_addr = {}; | |
468 | struct in_addr broadcast = {}; | |
8e766630 | 469 | _cleanup_(address_freep) Address *na = NULL; |
11bf3cce LP |
470 | int r; |
471 | ||
472 | assert(link); | |
473 | assert(original); | |
474 | assert(ret); | |
475 | ||
476 | /* Something useful was configured? just use it */ | |
af93291c | 477 | if (in_addr_is_null(original->family, &original->in_addr) <= 0) |
11bf3cce LP |
478 | return 0; |
479 | ||
480 | /* The address is configured to be 0.0.0.0 or [::] by the user? | |
481 | * Then let's acquire something more useful from the pool. */ | |
482 | r = manager_address_pool_acquire(link->manager, original->family, original->prefixlen, &in_addr); | |
6a7a4e4d LP |
483 | if (r < 0) |
484 | return log_link_error_errno(link, r, "Failed to acquire address from pool: %m"); | |
11bf3cce | 485 | if (r == 0) { |
79008bdd | 486 | log_link_error(link, "Couldn't find free address for interface, all taken."); |
11bf3cce LP |
487 | return -EBUSY; |
488 | } | |
489 | ||
490 | if (original->family == AF_INET) { | |
d076c6f9 | 491 | /* Pick first address in range for ourselves ... */ |
11bf3cce LP |
492 | in_addr.in.s_addr = in_addr.in.s_addr | htobe32(1); |
493 | ||
494 | /* .. and use last as broadcast address */ | |
e87e2b78 SS |
495 | if (original->prefixlen > 30) |
496 | broadcast.s_addr = 0; | |
497 | else | |
498 | broadcast.s_addr = in_addr.in.s_addr | htobe32(0xFFFFFFFFUL >> original->prefixlen); | |
11bf3cce LP |
499 | } else if (original->family == AF_INET6) |
500 | in_addr.in6.s6_addr[15] |= 1; | |
501 | ||
f0213e37 | 502 | r = address_new(&na); |
11bf3cce LP |
503 | if (r < 0) |
504 | return r; | |
505 | ||
506 | na->family = original->family; | |
507 | na->prefixlen = original->prefixlen; | |
508 | na->scope = original->scope; | |
509 | na->cinfo = original->cinfo; | |
510 | ||
511 | if (original->label) { | |
512 | na->label = strdup(original->label); | |
0099bc15 | 513 | if (!na->label) |
11bf3cce | 514 | return -ENOMEM; |
11bf3cce LP |
515 | } |
516 | ||
517 | na->broadcast = broadcast; | |
518 | na->in_addr = in_addr; | |
519 | ||
520 | LIST_PREPEND(addresses, link->pool_addresses, na); | |
521 | ||
1cc6c93a | 522 | *ret = TAKE_PTR(na); |
0099bc15 | 523 | |
11bf3cce LP |
524 | return 0; |
525 | } | |
526 | ||
1b566071 LP |
527 | int address_configure( |
528 | Address *address, | |
529 | Link *link, | |
530 | sd_netlink_message_handler_t callback, | |
531 | bool update) { | |
532 | ||
4afd3348 | 533 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
f579559b TG |
534 | int r; |
535 | ||
c166a070 | 536 | assert(address); |
4c701096 | 537 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
c166a070 TG |
538 | assert(link); |
539 | assert(link->ifindex > 0); | |
f882c247 | 540 | assert(link->manager); |
c166a070 | 541 | assert(link->manager->rtnl); |
f882c247 | 542 | |
1b566071 LP |
543 | /* If this is a new address, then refuse adding more than the limit */ |
544 | if (address_get(link, address->family, &address->in_addr, address->prefixlen, NULL) <= 0 && | |
545 | set_size(link->addresses) >= ADDRESSES_PER_LINK_MAX) | |
546 | return -E2BIG; | |
547 | ||
11bf3cce LP |
548 | r = address_acquire(link, address, &address); |
549 | if (r < 0) | |
550 | return r; | |
551 | ||
66669078 TG |
552 | if (update) |
553 | r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req, | |
554 | link->ifindex, address->family); | |
555 | else | |
556 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_NEWADDR, | |
557 | link->ifindex, address->family); | |
eb56eb9b MS |
558 | if (r < 0) |
559 | return log_error_errno(r, "Could not allocate RTM_NEWADDR message: %m"); | |
f579559b | 560 | |
5a723174 | 561 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b MS |
562 | if (r < 0) |
563 | return log_error_errno(r, "Could not set prefixlen: %m"); | |
5a723174 | 564 | |
851c9f82 PF |
565 | address->flags |= IFA_F_PERMANENT; |
566 | ||
e63be084 SS |
567 | if (address->home_address) |
568 | address->flags |= IFA_F_HOMEADDRESS; | |
569 | ||
570 | if (address->duplicate_address_detection) | |
571 | address->flags |= IFA_F_NODAD; | |
572 | ||
573 | if (address->manage_temporary_address) | |
574 | address->flags |= IFA_F_MANAGETEMPADDR; | |
575 | ||
576 | if (address->prefix_route) | |
577 | address->flags |= IFA_F_NOPREFIXROUTE; | |
578 | ||
579 | if (address->autojoin) | |
580 | address->flags |= IFA_F_MCAUTOJOIN; | |
581 | ||
851c9f82 | 582 | r = sd_rtnl_message_addr_set_flags(req, (address->flags & 0xff)); |
eb56eb9b MS |
583 | if (r < 0) |
584 | return log_error_errno(r, "Could not set flags: %m"); | |
5a723174 | 585 | |
851c9f82 | 586 | if (address->flags & ~0xff) { |
1c4baffc | 587 | r = sd_netlink_message_append_u32(req, IFA_FLAGS, address->flags); |
851c9f82 PF |
588 | if (r < 0) |
589 | return log_error_errno(r, "Could not set extended flags: %m"); | |
590 | } | |
591 | ||
5c1d3fc9 | 592 | r = sd_rtnl_message_addr_set_scope(req, address->scope); |
eb56eb9b MS |
593 | if (r < 0) |
594 | return log_error_errno(r, "Could not set scope: %m"); | |
5a723174 | 595 | |
0a0dc69b | 596 | if (address->family == AF_INET) |
1c4baffc | 597 | r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in); |
0a0dc69b | 598 | else if (address->family == AF_INET6) |
1c4baffc | 599 | r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6); |
eb56eb9b MS |
600 | if (r < 0) |
601 | return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m"); | |
f579559b | 602 | |
af93291c | 603 | if (!in_addr_is_null(address->family, &address->in_addr_peer)) { |
c081882f | 604 | if (address->family == AF_INET) |
1c4baffc | 605 | r = sd_netlink_message_append_in_addr(req, IFA_ADDRESS, &address->in_addr_peer.in); |
c081882f | 606 | else if (address->family == AF_INET6) |
1c4baffc | 607 | r = sd_netlink_message_append_in6_addr(req, IFA_ADDRESS, &address->in_addr_peer.in6); |
eb56eb9b MS |
608 | if (r < 0) |
609 | return log_error_errno(r, "Could not append IFA_ADDRESS attribute: %m"); | |
c081882f SS |
610 | } else { |
611 | if (address->family == AF_INET) { | |
e87e2b78 SS |
612 | if (address->prefixlen <= 30) { |
613 | r = sd_netlink_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast); | |
614 | if (r < 0) | |
615 | return log_error_errno(r, "Could not append IFA_BROADCAST attribute: %m"); | |
616 | } | |
c081882f | 617 | } |
f579559b TG |
618 | } |
619 | ||
620 | if (address->label) { | |
1c4baffc | 621 | r = sd_netlink_message_append_string(req, IFA_LABEL, address->label); |
eb56eb9b MS |
622 | if (r < 0) |
623 | return log_error_errno(r, "Could not append IFA_LABEL attribute: %m"); | |
f579559b TG |
624 | } |
625 | ||
1c4baffc | 626 | r = sd_netlink_message_append_cache_info(req, IFA_CACHEINFO, |
68ceb9df | 627 | &address->cinfo); |
eb56eb9b MS |
628 | if (r < 0) |
629 | return log_error_errno(r, "Could not append IFA_CACHEINFO attribute: %m"); | |
68ceb9df | 630 | |
fcf50cff | 631 | r = address_establish(address, link); |
eb56eb9b | 632 | if (r < 0) |
fcf50cff TG |
633 | return r; |
634 | ||
ee38400b | 635 | r = sd_netlink_call_async(link->manager->rtnl, NULL, req, callback, |
8190a388 | 636 | link_netlink_destroy_callback, link, 0, __func__); |
fcf50cff TG |
637 | if (r < 0) { |
638 | address_release(address); | |
eb56eb9b | 639 | return log_error_errno(r, "Could not send rtnetlink message: %m"); |
fcf50cff | 640 | } |
f579559b | 641 | |
563c69c6 TG |
642 | link_ref(link); |
643 | ||
adda1ed9 TG |
644 | r = address_add(link, address->family, &address->in_addr, address->prefixlen, NULL); |
645 | if (r < 0) { | |
646 | address_release(address); | |
647 | return log_error_errno(r, "Could not add address: %m"); | |
648 | } | |
649 | ||
f579559b TG |
650 | return 0; |
651 | } | |
652 | ||
44e7b949 LP |
653 | int config_parse_broadcast( |
654 | const char *unit, | |
eb0ea358 TG |
655 | const char *filename, |
656 | unsigned line, | |
657 | const char *section, | |
658 | unsigned section_line, | |
659 | const char *lvalue, | |
660 | int ltype, | |
661 | const char *rvalue, | |
662 | void *data, | |
663 | void *userdata) { | |
44e7b949 | 664 | |
eb0ea358 | 665 | Network *network = userdata; |
8e766630 | 666 | _cleanup_(address_freep) Address *n = NULL; |
eb0ea358 TG |
667 | int r; |
668 | ||
669 | assert(filename); | |
670 | assert(section); | |
671 | assert(lvalue); | |
672 | assert(rvalue); | |
673 | assert(data); | |
674 | ||
f4859fc7 | 675 | r = address_new_static(network, filename, section_line, &n); |
eb0ea358 TG |
676 | if (r < 0) |
677 | return r; | |
678 | ||
482e2ac1 | 679 | if (n->family == AF_INET6) { |
12ca818f | 680 | log_syntax(unit, LOG_ERR, filename, line, 0, "Broadcast is not valid for IPv6 addresses, ignoring assignment: %s", rvalue); |
482e2ac1 TG |
681 | return 0; |
682 | } | |
683 | ||
44e7b949 | 684 | r = in_addr_from_string(AF_INET, rvalue, (union in_addr_union*) &n->broadcast); |
eb0ea358 | 685 | if (r < 0) { |
12ca818f | 686 | log_syntax(unit, LOG_ERR, filename, line, r, "Broadcast is invalid, ignoring assignment: %s", rvalue); |
eb0ea358 TG |
687 | return 0; |
688 | } | |
689 | ||
44e7b949 | 690 | n->family = AF_INET; |
eb0ea358 TG |
691 | n = NULL; |
692 | ||
693 | return 0; | |
694 | } | |
695 | ||
f579559b TG |
696 | int config_parse_address(const char *unit, |
697 | const char *filename, | |
698 | unsigned line, | |
699 | const char *section, | |
71a61510 | 700 | unsigned section_line, |
f579559b TG |
701 | const char *lvalue, |
702 | int ltype, | |
703 | const char *rvalue, | |
704 | void *data, | |
705 | void *userdata) { | |
44e7b949 | 706 | |
6ae115c1 | 707 | Network *network = userdata; |
8e766630 | 708 | _cleanup_(address_freep) Address *n = NULL; |
44e7b949 LP |
709 | const char *address, *e; |
710 | union in_addr_union buffer; | |
711 | int r, f; | |
f579559b TG |
712 | |
713 | assert(filename); | |
6ae115c1 | 714 | assert(section); |
f579559b TG |
715 | assert(lvalue); |
716 | assert(rvalue); | |
717 | assert(data); | |
718 | ||
92fe133a TG |
719 | if (streq(section, "Network")) { |
720 | /* we are not in an Address section, so treat | |
721 | * this as the special '0' section */ | |
f4859fc7 SS |
722 | r = address_new_static(network, NULL, 0, &n); |
723 | } else | |
724 | r = address_new_static(network, filename, section_line, &n); | |
92fe133a | 725 | |
f579559b TG |
726 | if (r < 0) |
727 | return r; | |
728 | ||
729 | /* Address=address/prefixlen */ | |
730 | ||
731 | /* prefixlen */ | |
732 | e = strchr(rvalue, '/'); | |
733 | if (e) { | |
734 | unsigned i; | |
12ca818f | 735 | |
f579559b TG |
736 | r = safe_atou(e + 1, &i); |
737 | if (r < 0) { | |
12ca818f | 738 | log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length is invalid, ignoring assignment: %s", e + 1); |
f579559b TG |
739 | return 0; |
740 | } | |
741 | ||
742 | n->prefixlen = (unsigned char) i; | |
8cd11a0f | 743 | |
44e7b949 LP |
744 | address = strndupa(rvalue, e - rvalue); |
745 | } else | |
746 | address = rvalue; | |
f579559b | 747 | |
44e7b949 | 748 | r = in_addr_from_string_auto(address, &f, &buffer); |
f579559b | 749 | if (r < 0) { |
12ca818f | 750 | log_syntax(unit, LOG_ERR, filename, line, r, "Address is invalid, ignoring assignment: %s", address); |
f579559b TG |
751 | return 0; |
752 | } | |
753 | ||
a2a85a22 | 754 | if (!e && f == AF_INET) { |
5a941f5f | 755 | r = in4_addr_default_prefixlen(&buffer.in, &n->prefixlen); |
a2a85a22 | 756 | if (r < 0) { |
87ac8d99 | 757 | log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length not specified, and a default one cannot be deduced for '%s', ignoring assignment", address); |
a2a85a22 TG |
758 | return 0; |
759 | } | |
760 | } | |
761 | ||
44e7b949 | 762 | if (n->family != AF_UNSPEC && f != n->family) { |
12ca818f | 763 | log_syntax(unit, LOG_ERR, filename, line, 0, "Address is incompatible, ignoring assignment: %s", address); |
44e7b949 LP |
764 | return 0; |
765 | } | |
766 | ||
767 | n->family = f; | |
768 | ||
769 | if (streq(lvalue, "Address")) | |
770 | n->in_addr = buffer; | |
771 | else | |
772 | n->in_addr_peer = buffer; | |
773 | ||
774 | if (n->family == AF_INET && n->broadcast.s_addr == 0) | |
775 | n->broadcast.s_addr = n->in_addr.in.s_addr | htonl(0xfffffffflu >> n->prefixlen); | |
eb0ea358 | 776 | |
f579559b TG |
777 | n = NULL; |
778 | ||
779 | return 0; | |
780 | } | |
6ae115c1 | 781 | |
d31645ad LP |
782 | int config_parse_label( |
783 | const char *unit, | |
6ae115c1 TG |
784 | const char *filename, |
785 | unsigned line, | |
786 | const char *section, | |
787 | unsigned section_line, | |
788 | const char *lvalue, | |
789 | int ltype, | |
790 | const char *rvalue, | |
791 | void *data, | |
792 | void *userdata) { | |
d31645ad | 793 | |
8e766630 | 794 | _cleanup_(address_freep) Address *n = NULL; |
d31645ad | 795 | Network *network = userdata; |
6ae115c1 TG |
796 | int r; |
797 | ||
798 | assert(filename); | |
799 | assert(section); | |
800 | assert(lvalue); | |
801 | assert(rvalue); | |
802 | assert(data); | |
803 | ||
f4859fc7 | 804 | r = address_new_static(network, filename, section_line, &n); |
6ae115c1 TG |
805 | if (r < 0) |
806 | return r; | |
807 | ||
a87d19fe SS |
808 | if (!address_label_valid(rvalue)) { |
809 | log_syntax(unit, LOG_ERR, filename, line, 0, "Interface label is too long or invalid, ignoring assignment: %s", rvalue); | |
6ae115c1 TG |
810 | return 0; |
811 | } | |
812 | ||
d31645ad LP |
813 | r = free_and_strdup(&n->label, rvalue); |
814 | if (r < 0) | |
815 | return log_oom(); | |
6ae115c1 TG |
816 | |
817 | n = NULL; | |
818 | ||
819 | return 0; | |
820 | } | |
ce6c77eb | 821 | |
b5834a0b SS |
822 | int config_parse_lifetime(const char *unit, |
823 | const char *filename, | |
824 | unsigned line, | |
825 | const char *section, | |
826 | unsigned section_line, | |
827 | const char *lvalue, | |
828 | int ltype, | |
829 | const char *rvalue, | |
830 | void *data, | |
831 | void *userdata) { | |
832 | Network *network = userdata; | |
8e766630 | 833 | _cleanup_(address_freep) Address *n = NULL; |
b5834a0b SS |
834 | unsigned k; |
835 | int r; | |
836 | ||
837 | assert(filename); | |
838 | assert(section); | |
839 | assert(lvalue); | |
840 | assert(rvalue); | |
841 | assert(data); | |
842 | ||
f4859fc7 | 843 | r = address_new_static(network, filename, section_line, &n); |
b5834a0b SS |
844 | if (r < 0) |
845 | return r; | |
846 | ||
847 | if (STR_IN_SET(rvalue, "forever", "infinity")) { | |
848 | n->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME; | |
849 | n = NULL; | |
850 | ||
851 | return 0; | |
852 | } | |
853 | ||
854 | r = safe_atou(rvalue, &k); | |
855 | if (r < 0) { | |
856 | log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse PreferredLifetime, ignoring: %s", rvalue); | |
857 | return 0; | |
858 | } | |
859 | ||
860 | if (k != 0) | |
861 | log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid PreferredLifetime value, ignoring: %d", k); | |
862 | else { | |
863 | n->cinfo.ifa_prefered = k; | |
864 | n = NULL; | |
865 | } | |
866 | ||
867 | return 0; | |
868 | } | |
869 | ||
e63be084 SS |
870 | int config_parse_address_flags(const char *unit, |
871 | const char *filename, | |
872 | unsigned line, | |
873 | const char *section, | |
874 | unsigned section_line, | |
875 | const char *lvalue, | |
876 | int ltype, | |
877 | const char *rvalue, | |
878 | void *data, | |
879 | void *userdata) { | |
880 | Network *network = userdata; | |
8e766630 | 881 | _cleanup_(address_freep) Address *n = NULL; |
e63be084 SS |
882 | int r; |
883 | ||
884 | assert(filename); | |
885 | assert(section); | |
886 | assert(lvalue); | |
887 | assert(rvalue); | |
888 | assert(data); | |
889 | ||
f4859fc7 | 890 | r = address_new_static(network, filename, section_line, &n); |
e63be084 SS |
891 | if (r < 0) |
892 | return r; | |
893 | ||
894 | r = parse_boolean(rvalue); | |
895 | if (r < 0) { | |
896 | log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse address flag, ignoring: %s", rvalue); | |
897 | return 0; | |
898 | } | |
899 | ||
900 | if (streq(lvalue, "HomeAddress")) | |
901 | n->home_address = r; | |
902 | else if (streq(lvalue, "DuplicateAddressDetection")) | |
903 | n->duplicate_address_detection = r; | |
904 | else if (streq(lvalue, "ManageTemporaryAddress")) | |
905 | n->manage_temporary_address = r; | |
906 | else if (streq(lvalue, "PrefixRoute")) | |
907 | n->prefix_route = r; | |
908 | else if (streq(lvalue, "AutoJoin")) | |
909 | n->autojoin = r; | |
910 | ||
911 | return 0; | |
912 | } | |
913 | ||
2959fb07 SS |
914 | int config_parse_address_scope(const char *unit, |
915 | const char *filename, | |
916 | unsigned line, | |
917 | const char *section, | |
918 | unsigned section_line, | |
919 | const char *lvalue, | |
920 | int ltype, | |
921 | const char *rvalue, | |
922 | void *data, | |
923 | void *userdata) { | |
924 | Network *network = userdata; | |
8e766630 | 925 | _cleanup_(address_freep) Address *n = NULL; |
2959fb07 SS |
926 | int r; |
927 | ||
928 | assert(filename); | |
929 | assert(section); | |
930 | assert(lvalue); | |
931 | assert(rvalue); | |
932 | assert(data); | |
933 | ||
934 | r = address_new_static(network, filename, section_line, &n); | |
935 | if (r < 0) | |
936 | return r; | |
937 | ||
938 | if (streq(rvalue, "host")) | |
939 | n->scope = RT_SCOPE_HOST; | |
940 | else if (streq(rvalue, "link")) | |
941 | n->scope = RT_SCOPE_LINK; | |
942 | else if (streq(rvalue, "global")) | |
943 | n->scope = RT_SCOPE_UNIVERSE; | |
944 | else { | |
945 | r = safe_atou8(rvalue , &n->scope); | |
946 | if (r < 0) { | |
947 | log_syntax(unit, LOG_ERR, filename, line, r, "Could not parse address scope \"%s\", ignoring assignment: %m", rvalue); | |
948 | return 0; | |
949 | } | |
950 | } | |
951 | ||
952 | n = NULL; | |
953 | ||
954 | return 0; | |
955 | } | |
956 | ||
ce6c77eb TG |
957 | bool address_is_ready(const Address *a) { |
958 | assert(a); | |
959 | ||
b7ed5384 SS |
960 | if (a->family == AF_INET6) |
961 | return !(a->flags & IFA_F_TENTATIVE); | |
962 | else | |
963 | return !(a->flags & (IFA_F_TENTATIVE | IFA_F_DEPRECATED)); | |
ce6c77eb | 964 | } |