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