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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 | ||
5ead5352 SS |
23 | int generate_ipv6_eui_64_address(Link *link, struct in6_addr *ret) { |
24 | assert(link); | |
25 | assert(ret); | |
26 | ||
27 | /* see RFC4291 section 2.5.1 */ | |
28 | ret->s6_addr[8] = link->mac.ether_addr_octet[0]; | |
29 | ret->s6_addr[8] ^= 1 << 1; | |
30 | ret->s6_addr[9] = link->mac.ether_addr_octet[1]; | |
31 | ret->s6_addr[10] = link->mac.ether_addr_octet[2]; | |
32 | ret->s6_addr[11] = 0xff; | |
33 | ret->s6_addr[12] = 0xfe; | |
34 | ret->s6_addr[13] = link->mac.ether_addr_octet[3]; | |
35 | ret->s6_addr[14] = link->mac.ether_addr_octet[4]; | |
36 | ret->s6_addr[15] = link->mac.ether_addr_octet[5]; | |
37 | ||
38 | return 0; | |
39 | } | |
40 | ||
f0213e37 | 41 | int address_new(Address **ret) { |
8e766630 | 42 | _cleanup_(address_freep) Address *address = NULL; |
f0213e37 | 43 | |
17f9c355 | 44 | address = new(Address, 1); |
f0213e37 TG |
45 | if (!address) |
46 | return -ENOMEM; | |
aba496a5 | 47 | |
17f9c355 YW |
48 | *address = (Address) { |
49 | .family = AF_UNSPEC, | |
50 | .scope = RT_SCOPE_UNIVERSE, | |
51 | .cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME, | |
52 | .cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME, | |
051e77ca | 53 | .duplicate_address_detection = ADDRESS_FAMILY_IPV6, |
de697db0 | 54 | .prefix_route = true, |
17f9c355 | 55 | }; |
f0213e37 | 56 | |
1cc6c93a | 57 | *ret = TAKE_PTR(address); |
f0213e37 TG |
58 | |
59 | return 0; | |
aba496a5 UTL |
60 | } |
61 | ||
9560e5b3 | 62 | static int address_new_static(Network *network, const char *filename, unsigned section_line, Address **ret) { |
8e766630 LP |
63 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
64 | _cleanup_(address_freep) Address *address = NULL; | |
f0213e37 | 65 | int r; |
f579559b | 66 | |
8c34b963 LP |
67 | assert(network); |
68 | assert(ret); | |
48317c39 | 69 | assert(!!filename == (section_line > 0)); |
8c34b963 | 70 | |
48317c39 | 71 | if (filename) { |
f4859fc7 SS |
72 | r = network_config_section_new(filename, section_line, &n); |
73 | if (r < 0) | |
74 | return r; | |
75 | ||
76 | address = hashmap_get(network->addresses_by_section, n); | |
6ae115c1 | 77 | if (address) { |
1cc6c93a | 78 | *ret = TAKE_PTR(address); |
6ae115c1 TG |
79 | |
80 | return 0; | |
81 | } | |
82 | } | |
83 | ||
8c34b963 LP |
84 | if (network->n_static_addresses >= STATIC_ADDRESSES_PER_NETWORK_MAX) |
85 | return -E2BIG; | |
86 | ||
f0213e37 TG |
87 | r = address_new(&address); |
88 | if (r < 0) | |
89 | return r; | |
801bd9e8 | 90 | |
0f7f2769 YW |
91 | address->network = network; |
92 | LIST_APPEND(addresses, network->static_addresses, address); | |
93 | network->n_static_addresses++; | |
94 | ||
48317c39 | 95 | if (filename) { |
1cc6c93a | 96 | address->section = TAKE_PTR(n); |
fcc48287 | 97 | |
3e570042 YW |
98 | r = hashmap_ensure_allocated(&network->addresses_by_section, &network_config_hash_ops); |
99 | if (r < 0) | |
100 | return r; | |
101 | ||
f7fe70ea SS |
102 | r = hashmap_put(network->addresses_by_section, address->section, address); |
103 | if (r < 0) | |
104 | return r; | |
6ae115c1 TG |
105 | } |
106 | ||
1cc6c93a | 107 | *ret = TAKE_PTR(address); |
f579559b TG |
108 | |
109 | return 0; | |
110 | } | |
111 | ||
112 | void address_free(Address *address) { | |
113 | if (!address) | |
114 | return; | |
115 | ||
f048a16b | 116 | if (address->network) { |
3d3d4255 | 117 | LIST_REMOVE(addresses, address->network->static_addresses, address); |
8c34b963 LP |
118 | assert(address->network->n_static_addresses > 0); |
119 | address->network->n_static_addresses--; | |
f579559b | 120 | |
de4224aa | 121 | if (address->section) |
f4859fc7 | 122 | hashmap_remove(address->network->addresses_by_section, address->section); |
f048a16b | 123 | } |
6ae115c1 | 124 | |
051e77ca | 125 | if (address->link && !address->acd) { |
cf1d700d | 126 | set_remove(address->link->addresses, address); |
adda1ed9 | 127 | set_remove(address->link->addresses_foreign, address); |
f150100a SS |
128 | |
129 | if (in_addr_equal(AF_INET6, &address->in_addr, (const union in_addr_union *) &address->link->ipv6ll_address)) | |
130 | memzero(&address->link->ipv6ll_address, sizeof(struct in6_addr)); | |
adda1ed9 | 131 | } |
cf1d700d | 132 | |
051e77ca SS |
133 | sd_ipv4acd_unref(address->acd); |
134 | ||
de4224aa YW |
135 | network_config_section_free(address->section); |
136 | free(address->label); | |
f579559b TG |
137 | free(address); |
138 | } | |
139 | ||
24be9181 ZJS |
140 | static uint32_t address_prefix(const Address *a) { |
141 | assert(a); | |
142 | ||
143 | /* make sure we don't try to shift by 32. | |
144 | * See ISO/IEC 9899:TC3 § 6.5.7.3. */ | |
145 | if (a->prefixlen == 0) | |
146 | return 0; | |
147 | ||
148 | if (a->in_addr_peer.in.s_addr != 0) | |
149 | return be32toh(a->in_addr_peer.in.s_addr) >> (32 - a->prefixlen); | |
150 | else | |
151 | return be32toh(a->in_addr.in.s_addr) >> (32 - a->prefixlen); | |
152 | } | |
153 | ||
7a08d314 | 154 | static void address_hash_func(const Address *a, struct siphash *state) { |
3ac8e543 TG |
155 | assert(a); |
156 | ||
157 | siphash24_compress(&a->family, sizeof(a->family), state); | |
158 | ||
159 | switch (a->family) { | |
160 | case AF_INET: | |
161 | siphash24_compress(&a->prefixlen, sizeof(a->prefixlen), state); | |
162 | ||
163 | /* peer prefix */ | |
24be9181 ZJS |
164 | uint32_t prefix = address_prefix(a); |
165 | siphash24_compress(&prefix, sizeof(prefix), state); | |
3ac8e543 | 166 | |
4831981d | 167 | _fallthrough_; |
3ac8e543 TG |
168 | case AF_INET6: |
169 | /* local address */ | |
170 | siphash24_compress(&a->in_addr, FAMILY_ADDRESS_SIZE(a->family), state); | |
171 | ||
172 | break; | |
173 | default: | |
174 | /* treat any other address family as AF_UNSPEC */ | |
175 | break; | |
176 | } | |
177 | } | |
178 | ||
7a08d314 | 179 | static int address_compare_func(const Address *a1, const Address *a2) { |
a0edd02e | 180 | int r; |
3ac8e543 | 181 | |
a0edd02e FB |
182 | r = CMP(a1->family, a2->family); |
183 | if (r != 0) | |
184 | return r; | |
3ac8e543 TG |
185 | |
186 | switch (a1->family) { | |
187 | /* use the same notion of equality as the kernel does */ | |
188 | case AF_INET: | |
a0edd02e FB |
189 | r = CMP(a1->prefixlen, a2->prefixlen); |
190 | if (r != 0) | |
191 | return r; | |
3ac8e543 | 192 | |
24be9181 ZJS |
193 | uint32_t prefix1 = address_prefix(a1); |
194 | uint32_t prefix2 = address_prefix(a2); | |
195 | r = CMP(prefix1, prefix2); | |
196 | if (r != 0) | |
197 | return r; | |
3ac8e543 | 198 | |
4831981d | 199 | _fallthrough_; |
3ac8e543 TG |
200 | case AF_INET6: |
201 | return memcmp(&a1->in_addr, &a2->in_addr, FAMILY_ADDRESS_SIZE(a1->family)); | |
202 | default: | |
203 | /* treat any other address family as AF_UNSPEC */ | |
204 | return 0; | |
205 | } | |
206 | } | |
207 | ||
8a98f11e | 208 | DEFINE_HASH_OPS(address_hash_ops, Address, address_hash_func, address_compare_func); |
3ac8e543 TG |
209 | |
210 | bool address_equal(Address *a1, Address *a2) { | |
211 | if (a1 == a2) | |
212 | return true; | |
213 | ||
214 | if (!a1 || !a2) | |
215 | return false; | |
216 | ||
217 | return address_compare_func(a1, a2) == 0; | |
218 | } | |
219 | ||
91b5f997 TG |
220 | static int address_establish(Address *address, Link *link) { |
221 | bool masq; | |
222 | int r; | |
223 | ||
224 | assert(address); | |
225 | assert(link); | |
226 | ||
227 | masq = link->network && | |
fcf50cff TG |
228 | link->network->ip_masquerade && |
229 | address->family == AF_INET && | |
230 | address->scope < RT_SCOPE_LINK; | |
91b5f997 TG |
231 | |
232 | /* Add firewall entry if this is requested */ | |
233 | if (address->ip_masquerade_done != masq) { | |
234 | union in_addr_union masked = address->in_addr; | |
235 | in_addr_mask(address->family, &masked, address->prefixlen); | |
236 | ||
237 | r = fw_add_masquerade(masq, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); | |
238 | if (r < 0) | |
7750b796 | 239 | return r; |
91b5f997 TG |
240 | |
241 | address->ip_masquerade_done = masq; | |
242 | } | |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
adda1ed9 TG |
247 | static int address_add_internal(Link *link, Set **addresses, |
248 | int family, | |
249 | const union in_addr_union *in_addr, | |
250 | unsigned char prefixlen, | |
251 | Address **ret) { | |
8e766630 | 252 | _cleanup_(address_freep) Address *address = NULL; |
cf1d700d TG |
253 | int r; |
254 | ||
255 | assert(link); | |
adda1ed9 | 256 | assert(addresses); |
054f0db4 | 257 | assert(in_addr); |
054f0db4 TG |
258 | |
259 | r = address_new(&address); | |
260 | if (r < 0) | |
261 | return r; | |
262 | ||
263 | address->family = family; | |
264 | address->in_addr = *in_addr; | |
265 | address->prefixlen = prefixlen; | |
63bbe5c7 TG |
266 | /* Consider address tentative until we get the real flags from the kernel */ |
267 | address->flags = IFA_F_TENTATIVE; | |
cf1d700d | 268 | |
adda1ed9 | 269 | r = set_ensure_allocated(addresses, &address_hash_ops); |
cf1d700d TG |
270 | if (r < 0) |
271 | return r; | |
272 | ||
adda1ed9 | 273 | r = set_put(*addresses, address); |
cf1d700d TG |
274 | if (r < 0) |
275 | return r; | |
75a302b5 YW |
276 | if (r == 0) |
277 | return -EEXIST; | |
cf1d700d TG |
278 | |
279 | address->link = link; | |
280 | ||
adda1ed9 TG |
281 | if (ret) |
282 | *ret = address; | |
283 | ||
054f0db4 TG |
284 | address = NULL; |
285 | ||
cf1d700d TG |
286 | return 0; |
287 | } | |
288 | ||
adda1ed9 TG |
289 | int address_add_foreign(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
290 | return address_add_internal(link, &link->addresses_foreign, family, in_addr, prefixlen, ret); | |
291 | } | |
292 | ||
c4a03a56 | 293 | int address_add(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) { |
cab974b0 | 294 | Address *address; |
e7780c8d TG |
295 | int r; |
296 | ||
cab974b0 TG |
297 | r = address_get(link, family, in_addr, prefixlen, &address); |
298 | if (r == -ENOENT) { | |
299 | /* Address does not exist, create a new one */ | |
300 | r = address_add_internal(link, &link->addresses, family, in_addr, prefixlen, &address); | |
301 | if (r < 0) | |
302 | return r; | |
303 | } else if (r == 0) { | |
304 | /* Take over a foreign address */ | |
305 | r = set_ensure_allocated(&link->addresses, &address_hash_ops); | |
306 | if (r < 0) | |
307 | return r; | |
308 | ||
309 | r = set_put(link->addresses, address); | |
310 | if (r < 0) | |
311 | return r; | |
312 | ||
313 | set_remove(link->addresses_foreign, address); | |
314 | } else if (r == 1) { | |
315 | /* Already exists, do nothing */ | |
316 | ; | |
317 | } else | |
e7780c8d TG |
318 | return r; |
319 | ||
cab974b0 TG |
320 | if (ret) |
321 | *ret = address; | |
e7780c8d TG |
322 | |
323 | return 0; | |
adda1ed9 TG |
324 | } |
325 | ||
fcf50cff | 326 | static int address_release(Address *address) { |
5a8bcb67 LP |
327 | int r; |
328 | ||
329 | assert(address); | |
fcf50cff | 330 | assert(address->link); |
5a8bcb67 | 331 | |
91b5f997 TG |
332 | /* Remove masquerading firewall entry if it was added */ |
333 | if (address->ip_masquerade_done) { | |
5a8bcb67 LP |
334 | union in_addr_union masked = address->in_addr; |
335 | in_addr_mask(address->family, &masked, address->prefixlen); | |
336 | ||
91b5f997 | 337 | r = fw_add_masquerade(false, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0); |
5a8bcb67 | 338 | if (r < 0) |
7750b796 | 339 | return r; |
5a8bcb67 | 340 | |
91b5f997 | 341 | address->ip_masquerade_done = false; |
5a8bcb67 LP |
342 | } |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
889b550f LP |
347 | int address_update( |
348 | Address *address, | |
349 | unsigned char flags, | |
350 | unsigned char scope, | |
351 | const struct ifa_cacheinfo *cinfo) { | |
352 | ||
36c32f61 | 353 | bool ready; |
e7ab854c | 354 | int r; |
36c32f61 TG |
355 | |
356 | assert(address); | |
357 | assert(cinfo); | |
7209086d SS |
358 | assert_return(address->link, 1); |
359 | ||
360 | if (IN_SET(address->link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
361 | return 1; | |
36c32f61 TG |
362 | |
363 | ready = address_is_ready(address); | |
364 | ||
365 | address->flags = flags; | |
366 | address->scope = scope; | |
367 | address->cinfo = *cinfo; | |
368 | ||
959f65d3 | 369 | link_update_operstate(address->link, true); |
c8f7123e | 370 | link_check_ready(address->link); |
7209086d | 371 | |
c8f7123e YW |
372 | if (!ready && |
373 | address_is_ready(address) && | |
374 | address->family == AF_INET6 && | |
375 | in_addr_is_link_local(AF_INET6, &address->in_addr) > 0 && | |
376 | in_addr_is_null(AF_INET6, (const union in_addr_union*) &address->link->ipv6ll_address) > 0) { | |
7209086d | 377 | |
c8f7123e YW |
378 | r = link_ipv6ll_gained(address->link, &address->in_addr.in6); |
379 | if (r < 0) | |
380 | return r; | |
a3a019e1 | 381 | } |
36c32f61 TG |
382 | |
383 | return 0; | |
384 | } | |
385 | ||
91b5f997 | 386 | int address_drop(Address *address) { |
8012cd39 TG |
387 | Link *link; |
388 | bool ready; | |
7750b796 | 389 | int r; |
8012cd39 | 390 | |
5a8bcb67 | 391 | assert(address); |
91b5f997 | 392 | |
8012cd39 TG |
393 | ready = address_is_ready(address); |
394 | link = address->link; | |
395 | ||
7750b796 YW |
396 | r = address_release(address); |
397 | if (r < 0) | |
398 | log_link_warning_errno(link, r, "Failed to disable IP masquerading, ignoring: %m"); | |
399 | ||
91b5f997 TG |
400 | address_free(address); |
401 | ||
959f65d3 | 402 | link_update_operstate(link, true); |
84de38c5 | 403 | |
8012cd39 TG |
404 | if (link && !ready) |
405 | link_check_ready(link); | |
406 | ||
91b5f997 TG |
407 | return 0; |
408 | } | |
409 | ||
1b566071 LP |
410 | int address_get(Link *link, |
411 | int family, | |
412 | const union in_addr_union *in_addr, | |
413 | unsigned char prefixlen, | |
414 | Address **ret) { | |
415 | ||
416 | Address address, *existing; | |
91b5f997 | 417 | |
5a8bcb67 | 418 | assert(link); |
91b5f997 | 419 | assert(in_addr); |
5a8bcb67 | 420 | |
1b566071 LP |
421 | address = (Address) { |
422 | .family = family, | |
423 | .in_addr = *in_addr, | |
424 | .prefixlen = prefixlen, | |
425 | }; | |
5a8bcb67 | 426 | |
91b5f997 | 427 | existing = set_get(link->addresses, &address); |
cab974b0 | 428 | if (existing) { |
1b566071 LP |
429 | if (ret) |
430 | *ret = existing; | |
cab974b0 | 431 | return 1; |
adda1ed9 | 432 | } |
5a8bcb67 | 433 | |
1b566071 LP |
434 | existing = set_get(link->addresses_foreign, &address); |
435 | if (existing) { | |
436 | if (ret) | |
437 | *ret = existing; | |
438 | return 0; | |
439 | } | |
5a8bcb67 | 440 | |
1b566071 | 441 | return -ENOENT; |
5a8bcb67 LP |
442 | } |
443 | ||
302a796f | 444 | static int address_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { |
63ae0569 YW |
445 | int r; |
446 | ||
447 | assert(m); | |
448 | assert(link); | |
449 | assert(link->ifname); | |
450 | ||
451 | if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
452 | return 1; | |
453 | ||
454 | r = sd_netlink_message_get_errno(m); | |
455 | if (r < 0 && r != -EADDRNOTAVAIL) | |
5ecb131d | 456 | log_link_message_warning_errno(link, m, r, "Could not drop address"); |
63ae0569 YW |
457 | |
458 | return 1; | |
459 | } | |
460 | ||
483d099e ZJS |
461 | int address_remove( |
462 | Address *address, | |
463 | Link *link, | |
302a796f | 464 | link_netlink_message_handler_t callback) { |
483d099e | 465 | |
4afd3348 | 466 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
407fe036 TG |
467 | int r; |
468 | ||
469 | assert(address); | |
4c701096 | 470 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
407fe036 TG |
471 | assert(link); |
472 | assert(link->ifindex > 0); | |
473 | assert(link->manager); | |
474 | assert(link->manager->rtnl); | |
475 | ||
30226d27 | 476 | if (DEBUG_LOGGING) { |
7750b796 YW |
477 | _cleanup_free_ char *b = NULL; |
478 | ||
479 | (void) in_addr_to_string(address->family, &address->in_addr, &b); | |
480 | log_link_debug(link, "Removing address %s", strna(b)); | |
30226d27 TJ |
481 | } |
482 | ||
151b9b96 LP |
483 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDR, |
484 | link->ifindex, address->family); | |
eb56eb9b | 485 | if (r < 0) |
7750b796 | 486 | return log_link_error_errno(link, r, "Could not allocate RTM_DELADDR message: %m"); |
407fe036 | 487 | |
5a723174 | 488 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b | 489 | if (r < 0) |
7750b796 | 490 | return log_link_error_errno(link, r, "Could not set prefixlen: %m"); |
5a723174 | 491 | |
43409486 | 492 | r = netlink_message_append_in_addr_union(req, IFA_LOCAL, address->family, &address->in_addr); |
eb56eb9b | 493 | if (r < 0) |
7750b796 | 494 | return log_link_error_errno(link, r, "Could not append IFA_LOCAL attribute: %m"); |
407fe036 | 495 | |
302a796f YW |
496 | r = netlink_call_async(link->manager->rtnl, NULL, req, |
497 | callback ?: address_remove_handler, | |
498 | link_netlink_destroy_callback, link); | |
eb56eb9b | 499 | if (r < 0) |
7750b796 | 500 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
407fe036 | 501 | |
563c69c6 TG |
502 | link_ref(link); |
503 | ||
407fe036 TG |
504 | return 0; |
505 | } | |
506 | ||
11bf3cce | 507 | static int address_acquire(Link *link, Address *original, Address **ret) { |
67a46833 | 508 | union in_addr_union in_addr = IN_ADDR_NULL; |
11bf3cce | 509 | struct in_addr broadcast = {}; |
8e766630 | 510 | _cleanup_(address_freep) Address *na = NULL; |
11bf3cce LP |
511 | int r; |
512 | ||
513 | assert(link); | |
514 | assert(original); | |
515 | assert(ret); | |
516 | ||
517 | /* Something useful was configured? just use it */ | |
7e43ebfb YW |
518 | r = in_addr_is_null(original->family, &original->in_addr); |
519 | if (r <= 0) | |
520 | return r; | |
11bf3cce LP |
521 | |
522 | /* The address is configured to be 0.0.0.0 or [::] by the user? | |
523 | * Then let's acquire something more useful from the pool. */ | |
524 | r = manager_address_pool_acquire(link->manager, original->family, original->prefixlen, &in_addr); | |
6a7a4e4d | 525 | if (r < 0) |
7750b796 YW |
526 | return r; |
527 | if (r == 0) | |
11bf3cce | 528 | return -EBUSY; |
11bf3cce LP |
529 | |
530 | if (original->family == AF_INET) { | |
d076c6f9 | 531 | /* Pick first address in range for ourselves ... */ |
11bf3cce LP |
532 | in_addr.in.s_addr = in_addr.in.s_addr | htobe32(1); |
533 | ||
534 | /* .. and use last as broadcast address */ | |
e87e2b78 SS |
535 | if (original->prefixlen > 30) |
536 | broadcast.s_addr = 0; | |
537 | else | |
538 | broadcast.s_addr = in_addr.in.s_addr | htobe32(0xFFFFFFFFUL >> original->prefixlen); | |
11bf3cce LP |
539 | } else if (original->family == AF_INET6) |
540 | in_addr.in6.s6_addr[15] |= 1; | |
541 | ||
f0213e37 | 542 | r = address_new(&na); |
11bf3cce LP |
543 | if (r < 0) |
544 | return r; | |
545 | ||
546 | na->family = original->family; | |
547 | na->prefixlen = original->prefixlen; | |
548 | na->scope = original->scope; | |
549 | na->cinfo = original->cinfo; | |
550 | ||
551 | if (original->label) { | |
552 | na->label = strdup(original->label); | |
0099bc15 | 553 | if (!na->label) |
11bf3cce | 554 | return -ENOMEM; |
11bf3cce LP |
555 | } |
556 | ||
557 | na->broadcast = broadcast; | |
558 | na->in_addr = in_addr; | |
559 | ||
560 | LIST_PREPEND(addresses, link->pool_addresses, na); | |
561 | ||
1cc6c93a | 562 | *ret = TAKE_PTR(na); |
0099bc15 | 563 | |
11bf3cce LP |
564 | return 0; |
565 | } | |
566 | ||
1b566071 LP |
567 | int address_configure( |
568 | Address *address, | |
569 | Link *link, | |
302a796f | 570 | link_netlink_message_handler_t callback, |
1b566071 LP |
571 | bool update) { |
572 | ||
4afd3348 | 573 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
f579559b TG |
574 | int r; |
575 | ||
c166a070 | 576 | assert(address); |
4c701096 | 577 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
c166a070 TG |
578 | assert(link); |
579 | assert(link->ifindex > 0); | |
f882c247 | 580 | assert(link->manager); |
c166a070 | 581 | assert(link->manager->rtnl); |
bd1175bc | 582 | assert(callback); |
f882c247 | 583 | |
1b566071 LP |
584 | /* If this is a new address, then refuse adding more than the limit */ |
585 | if (address_get(link, address->family, &address->in_addr, address->prefixlen, NULL) <= 0 && | |
586 | set_size(link->addresses) >= ADDRESSES_PER_LINK_MAX) | |
7750b796 YW |
587 | return log_link_error_errno(link, SYNTHETIC_ERRNO(E2BIG), |
588 | "Too many addresses are configured, refusing: %m"); | |
1b566071 | 589 | |
11bf3cce LP |
590 | r = address_acquire(link, address, &address); |
591 | if (r < 0) | |
7750b796 | 592 | return log_link_error_errno(link, r, "Failed to acquire an address from pool: %m"); |
11bf3cce | 593 | |
66669078 TG |
594 | if (update) |
595 | r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req, | |
596 | link->ifindex, address->family); | |
597 | else | |
598 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_NEWADDR, | |
599 | link->ifindex, address->family); | |
eb56eb9b | 600 | if (r < 0) |
7750b796 | 601 | return log_link_error_errno(link, r, "Could not allocate RTM_NEWADDR message: %m"); |
f579559b | 602 | |
5a723174 | 603 | r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen); |
eb56eb9b | 604 | if (r < 0) |
7750b796 | 605 | return log_link_error_errno(link, r, "Could not set prefixlen: %m"); |
5a723174 | 606 | |
851c9f82 PF |
607 | address->flags |= IFA_F_PERMANENT; |
608 | ||
e63be084 SS |
609 | if (address->home_address) |
610 | address->flags |= IFA_F_HOMEADDRESS; | |
611 | ||
051e77ca | 612 | if (!FLAGS_SET(address->duplicate_address_detection, ADDRESS_FAMILY_IPV6)) |
e63be084 SS |
613 | address->flags |= IFA_F_NODAD; |
614 | ||
615 | if (address->manage_temporary_address) | |
616 | address->flags |= IFA_F_MANAGETEMPADDR; | |
617 | ||
de697db0 | 618 | if (!address->prefix_route) |
e63be084 SS |
619 | address->flags |= IFA_F_NOPREFIXROUTE; |
620 | ||
621 | if (address->autojoin) | |
622 | address->flags |= IFA_F_MCAUTOJOIN; | |
623 | ||
851c9f82 | 624 | r = sd_rtnl_message_addr_set_flags(req, (address->flags & 0xff)); |
eb56eb9b | 625 | if (r < 0) |
7750b796 | 626 | return log_link_error_errno(link, r, "Could not set flags: %m"); |
5a723174 | 627 | |
851c9f82 | 628 | if (address->flags & ~0xff) { |
1c4baffc | 629 | r = sd_netlink_message_append_u32(req, IFA_FLAGS, address->flags); |
851c9f82 | 630 | if (r < 0) |
7750b796 | 631 | return log_link_error_errno(link, r, "Could not set extended flags: %m"); |
851c9f82 PF |
632 | } |
633 | ||
5c1d3fc9 | 634 | r = sd_rtnl_message_addr_set_scope(req, address->scope); |
eb56eb9b | 635 | if (r < 0) |
7750b796 | 636 | return log_link_error_errno(link, r, "Could not set scope: %m"); |
5a723174 | 637 | |
43409486 | 638 | r = netlink_message_append_in_addr_union(req, IFA_LOCAL, address->family, &address->in_addr); |
eb56eb9b | 639 | if (r < 0) |
7750b796 | 640 | return log_link_error_errno(link, r, "Could not append IFA_LOCAL attribute: %m"); |
f579559b | 641 | |
d40b01e4 | 642 | if (in_addr_is_null(address->family, &address->in_addr_peer) == 0) { |
43409486 | 643 | r = netlink_message_append_in_addr_union(req, IFA_ADDRESS, address->family, &address->in_addr_peer); |
eb56eb9b | 644 | if (r < 0) |
7750b796 | 645 | return log_link_error_errno(link, r, "Could not append IFA_ADDRESS attribute: %m"); |
66e0bb33 YW |
646 | } else if (address->family == AF_INET && address->prefixlen <= 30) { |
647 | r = sd_netlink_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast); | |
648 | if (r < 0) | |
7750b796 | 649 | return log_link_error_errno(link, r, "Could not append IFA_BROADCAST attribute: %m"); |
f579559b TG |
650 | } |
651 | ||
652 | if (address->label) { | |
1c4baffc | 653 | r = sd_netlink_message_append_string(req, IFA_LABEL, address->label); |
eb56eb9b | 654 | if (r < 0) |
7750b796 | 655 | return log_link_error_errno(link, r, "Could not append IFA_LABEL attribute: %m"); |
f579559b TG |
656 | } |
657 | ||
66e0bb33 | 658 | r = sd_netlink_message_append_cache_info(req, IFA_CACHEINFO, &address->cinfo); |
eb56eb9b | 659 | if (r < 0) |
7750b796 | 660 | return log_link_error_errno(link, r, "Could not append IFA_CACHEINFO attribute: %m"); |
68ceb9df | 661 | |
fcf50cff | 662 | r = address_establish(address, link); |
eb56eb9b | 663 | if (r < 0) |
7750b796 | 664 | log_link_warning_errno(link, r, "Could not enable IP masquerading, ignoring: %m"); |
fcf50cff | 665 | |
dfef713f | 666 | r = netlink_call_async(link->manager->rtnl, NULL, req, callback, link_netlink_destroy_callback, link); |
fcf50cff TG |
667 | if (r < 0) { |
668 | address_release(address); | |
7750b796 | 669 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
fcf50cff | 670 | } |
f579559b | 671 | |
563c69c6 TG |
672 | link_ref(link); |
673 | ||
dfef713f SS |
674 | if (address->family == AF_INET6 && !in_addr_is_null(address->family, &address->in_addr_peer)) |
675 | r = address_add(link, address->family, &address->in_addr_peer, address->prefixlen, NULL); | |
676 | else | |
677 | r = address_add(link, address->family, &address->in_addr, address->prefixlen, NULL); | |
adda1ed9 TG |
678 | if (r < 0) { |
679 | address_release(address); | |
7750b796 | 680 | return log_link_error_errno(link, r, "Could not add address: %m"); |
adda1ed9 TG |
681 | } |
682 | ||
051e77ca SS |
683 | if (address->acd) { |
684 | assert(address->family == AF_INET); | |
685 | if (DEBUG_LOGGING) { | |
686 | _cleanup_free_ char *pretty = NULL; | |
687 | ||
688 | (void) in_addr_to_string(address->family, &address->in_addr, &pretty); | |
98b02994 | 689 | log_link_debug(link, "Starting IPv4ACD client. Probing address %s", strna(pretty)); |
051e77ca SS |
690 | } |
691 | ||
e92b60b2 | 692 | r = sd_ipv4acd_start(address->acd, true); |
051e77ca SS |
693 | if (r < 0) |
694 | log_link_warning_errno(link, r, "Failed to start IPv4ACD client, ignoring: %m"); | |
695 | } | |
696 | ||
54a1a535 | 697 | return 1; |
f579559b TG |
698 | } |
699 | ||
051e77ca SS |
700 | static void static_address_on_acd(sd_ipv4acd *acd, int event, void *userdata) { |
701 | _cleanup_free_ char *pretty = NULL; | |
702 | Address *address; | |
703 | Link *link; | |
704 | int r; | |
705 | ||
706 | assert(acd); | |
707 | assert(userdata); | |
708 | ||
709 | address = (Address *) userdata; | |
710 | link = address->link; | |
711 | ||
712 | (void) in_addr_to_string(address->family, &address->in_addr, &pretty); | |
713 | switch (event) { | |
714 | case SD_IPV4ACD_EVENT_STOP: | |
715 | log_link_debug(link, "Stopping ACD client..."); | |
716 | return; | |
717 | ||
718 | case SD_IPV4ACD_EVENT_BIND: | |
719 | log_link_debug(link, "Successfully claimed address %s", strna(pretty)); | |
720 | link_check_ready(link); | |
721 | break; | |
722 | ||
723 | case SD_IPV4ACD_EVENT_CONFLICT: | |
724 | log_link_warning(link, "DAD conflict. Dropping address %s", strna(pretty)); | |
725 | r = address_remove(address, link, NULL); | |
726 | if (r < 0) | |
727 | log_link_error_errno(link, r, "Failed to drop DAD conflicted address %s", strna(pretty));; | |
728 | ||
729 | link_check_ready(link); | |
730 | break; | |
731 | ||
732 | default: | |
733 | assert_not_reached("Invalid IPv4ACD event."); | |
734 | } | |
735 | ||
736 | sd_ipv4acd_stop(acd); | |
737 | ||
738 | return; | |
739 | } | |
740 | ||
741 | int configure_ipv4_duplicate_address_detection(Link *link, Address *address) { | |
742 | int r; | |
743 | ||
744 | assert(link); | |
745 | assert(address); | |
746 | assert(address->family == AF_INET); | |
747 | assert(!address->link && address->network); | |
748 | ||
749 | address->link = link; | |
750 | ||
751 | r = sd_ipv4acd_new(&address->acd); | |
752 | if (r < 0) | |
753 | return r; | |
754 | ||
755 | r = sd_ipv4acd_attach_event(address->acd, NULL, 0); | |
756 | if (r < 0) | |
757 | return r; | |
758 | ||
759 | r = sd_ipv4acd_set_ifindex(address->acd, link->ifindex); | |
760 | if (r < 0) | |
761 | return r; | |
762 | ||
763 | r = sd_ipv4acd_set_mac(address->acd, &link->mac); | |
764 | if (r < 0) | |
765 | return r; | |
766 | ||
767 | r = sd_ipv4acd_set_address(address->acd, &address->in_addr.in); | |
768 | if (r < 0) | |
769 | return r; | |
770 | ||
771 | r = sd_ipv4acd_set_callback(address->acd, static_address_on_acd, address); | |
772 | if (r < 0) | |
773 | return r; | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
44e7b949 LP |
778 | int config_parse_broadcast( |
779 | const char *unit, | |
eb0ea358 TG |
780 | const char *filename, |
781 | unsigned line, | |
782 | const char *section, | |
783 | unsigned section_line, | |
784 | const char *lvalue, | |
785 | int ltype, | |
786 | const char *rvalue, | |
787 | void *data, | |
788 | void *userdata) { | |
44e7b949 | 789 | |
eb0ea358 | 790 | Network *network = userdata; |
fcbf4cb7 | 791 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
eb0ea358 TG |
792 | int r; |
793 | ||
794 | assert(filename); | |
795 | assert(section); | |
796 | assert(lvalue); | |
797 | assert(rvalue); | |
798 | assert(data); | |
799 | ||
f4859fc7 | 800 | r = address_new_static(network, filename, section_line, &n); |
eb0ea358 TG |
801 | if (r < 0) |
802 | return r; | |
803 | ||
482e2ac1 | 804 | if (n->family == AF_INET6) { |
2850cd40 YW |
805 | log_syntax(unit, LOG_ERR, filename, line, 0, |
806 | "Broadcast is not valid for IPv6 addresses, ignoring assignment: %s", rvalue); | |
482e2ac1 TG |
807 | return 0; |
808 | } | |
809 | ||
44e7b949 | 810 | r = in_addr_from_string(AF_INET, rvalue, (union in_addr_union*) &n->broadcast); |
eb0ea358 | 811 | if (r < 0) { |
2850cd40 YW |
812 | log_syntax(unit, LOG_ERR, filename, line, r, |
813 | "Broadcast is invalid, ignoring assignment: %s", rvalue); | |
eb0ea358 TG |
814 | return 0; |
815 | } | |
816 | ||
44e7b949 | 817 | n->family = AF_INET; |
eb0ea358 TG |
818 | n = NULL; |
819 | ||
820 | return 0; | |
821 | } | |
822 | ||
f579559b TG |
823 | int config_parse_address(const char *unit, |
824 | const char *filename, | |
825 | unsigned line, | |
826 | const char *section, | |
71a61510 | 827 | unsigned section_line, |
f579559b TG |
828 | const char *lvalue, |
829 | int ltype, | |
830 | const char *rvalue, | |
831 | void *data, | |
832 | void *userdata) { | |
44e7b949 | 833 | |
6ae115c1 | 834 | Network *network = userdata; |
fcbf4cb7 | 835 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
44e7b949 | 836 | union in_addr_union buffer; |
b7cb4452 | 837 | unsigned char prefixlen; |
44e7b949 | 838 | int r, f; |
f579559b TG |
839 | |
840 | assert(filename); | |
6ae115c1 | 841 | assert(section); |
f579559b TG |
842 | assert(lvalue); |
843 | assert(rvalue); | |
844 | assert(data); | |
845 | ||
92fe133a TG |
846 | if (streq(section, "Network")) { |
847 | /* we are not in an Address section, so treat | |
848 | * this as the special '0' section */ | |
f4859fc7 SS |
849 | r = address_new_static(network, NULL, 0, &n); |
850 | } else | |
851 | r = address_new_static(network, filename, section_line, &n); | |
92fe133a | 852 | |
f579559b TG |
853 | if (r < 0) |
854 | return r; | |
855 | ||
856 | /* Address=address/prefixlen */ | |
0f707207 YW |
857 | r = in_addr_prefix_from_string_auto_internal(rvalue, PREFIXLEN_REFUSE, &f, &buffer, &prefixlen); |
858 | if (r == -ENOANO) { | |
859 | log_syntax(unit, LOG_ERR, filename, line, r, | |
860 | "An address '%s' is specified without prefix length. " | |
861 | "The behavior of parsing addresses without prefix length will be changed in the future release. " | |
862 | "Please specify prefix length explicitly.", rvalue); | |
863 | ||
864 | r = in_addr_prefix_from_string_auto_internal(rvalue, PREFIXLEN_LEGACY, &f, &buffer, &prefixlen); | |
865 | } | |
f579559b | 866 | if (r < 0) { |
b7cb4452 | 867 | log_syntax(unit, LOG_ERR, filename, line, r, "Invalid address '%s', ignoring assignment: %m", rvalue); |
f579559b TG |
868 | return 0; |
869 | } | |
870 | ||
44e7b949 | 871 | if (n->family != AF_UNSPEC && f != n->family) { |
b7cb4452 | 872 | log_syntax(unit, LOG_ERR, filename, line, 0, "Address is incompatible, ignoring assignment: %s", rvalue); |
44e7b949 LP |
873 | return 0; |
874 | } | |
875 | ||
c9207ff3 YW |
876 | if (in_addr_is_null(f, &buffer)) { |
877 | /* Will use address from address pool. Note that for ipv6 case, prefix of the address | |
878 | * pool is 8, but 40 bit is used by the global ID and 16 bit by the subnet ID. So, | |
879 | * let's limit the prefix length to 64 or larger. See RFC4193. */ | |
880 | if ((f == AF_INET && prefixlen < 8) || | |
881 | (f == AF_INET6 && prefixlen < 64)) { | |
882 | log_syntax(unit, LOG_ERR, filename, line, 0, | |
883 | "Null address with invalid prefixlen='%u', ignoring assignment: %s", | |
884 | prefixlen, rvalue); | |
885 | return 0; | |
886 | } | |
887 | } | |
888 | ||
44e7b949 | 889 | n->family = f; |
b7cb4452 | 890 | n->prefixlen = prefixlen; |
44e7b949 LP |
891 | |
892 | if (streq(lvalue, "Address")) | |
893 | n->in_addr = buffer; | |
894 | else | |
895 | n->in_addr_peer = buffer; | |
896 | ||
3681d639 | 897 | if (n->family == AF_INET && n->broadcast.s_addr == 0 && n->prefixlen <= 30) |
fe2e4b69 | 898 | n->broadcast.s_addr = n->in_addr.in.s_addr | htobe32(0xfffffffflu >> n->prefixlen); |
eb0ea358 | 899 | |
f579559b TG |
900 | n = NULL; |
901 | ||
902 | return 0; | |
903 | } | |
6ae115c1 | 904 | |
d31645ad LP |
905 | int config_parse_label( |
906 | const char *unit, | |
6ae115c1 TG |
907 | const char *filename, |
908 | unsigned line, | |
909 | const char *section, | |
910 | unsigned section_line, | |
911 | const char *lvalue, | |
912 | int ltype, | |
913 | const char *rvalue, | |
914 | void *data, | |
915 | void *userdata) { | |
d31645ad | 916 | |
fcbf4cb7 | 917 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
d31645ad | 918 | Network *network = userdata; |
6ae115c1 TG |
919 | int r; |
920 | ||
921 | assert(filename); | |
922 | assert(section); | |
923 | assert(lvalue); | |
924 | assert(rvalue); | |
925 | assert(data); | |
926 | ||
f4859fc7 | 927 | r = address_new_static(network, filename, section_line, &n); |
6ae115c1 TG |
928 | if (r < 0) |
929 | return r; | |
930 | ||
a87d19fe | 931 | if (!address_label_valid(rvalue)) { |
2850cd40 YW |
932 | log_syntax(unit, LOG_ERR, filename, line, 0, |
933 | "Interface label is too long or invalid, ignoring assignment: %s", rvalue); | |
6ae115c1 TG |
934 | return 0; |
935 | } | |
936 | ||
d31645ad LP |
937 | r = free_and_strdup(&n->label, rvalue); |
938 | if (r < 0) | |
939 | return log_oom(); | |
6ae115c1 TG |
940 | |
941 | n = NULL; | |
6ae115c1 TG |
942 | return 0; |
943 | } | |
ce6c77eb | 944 | |
b5834a0b SS |
945 | int config_parse_lifetime(const char *unit, |
946 | const char *filename, | |
947 | unsigned line, | |
948 | const char *section, | |
949 | unsigned section_line, | |
950 | const char *lvalue, | |
951 | int ltype, | |
952 | const char *rvalue, | |
953 | void *data, | |
954 | void *userdata) { | |
955 | Network *network = userdata; | |
fcbf4cb7 | 956 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
d2735796 | 957 | uint32_t k; |
b5834a0b SS |
958 | int r; |
959 | ||
960 | assert(filename); | |
961 | assert(section); | |
962 | assert(lvalue); | |
963 | assert(rvalue); | |
964 | assert(data); | |
965 | ||
f4859fc7 | 966 | r = address_new_static(network, filename, section_line, &n); |
b5834a0b SS |
967 | if (r < 0) |
968 | return r; | |
969 | ||
10b20e5a ZJS |
970 | /* We accept only "forever", "infinity", empty, or "0". */ |
971 | if (STR_IN_SET(rvalue, "forever", "infinity", "")) | |
33680b0a YW |
972 | k = CACHE_INFO_INFINITY_LIFE_TIME; |
973 | else if (streq(rvalue, "0")) | |
974 | k = 0; | |
975 | else { | |
976 | log_syntax(unit, LOG_ERR, filename, line, 0, | |
977 | "Invalid PreferredLifetime= value, ignoring: %s", rvalue); | |
b5834a0b SS |
978 | return 0; |
979 | } | |
980 | ||
33680b0a | 981 | n->cinfo.ifa_prefered = k; |
d2735796 | 982 | TAKE_PTR(n); |
b5834a0b SS |
983 | |
984 | return 0; | |
985 | } | |
986 | ||
e63be084 SS |
987 | int config_parse_address_flags(const char *unit, |
988 | const char *filename, | |
989 | unsigned line, | |
990 | const char *section, | |
991 | unsigned section_line, | |
992 | const char *lvalue, | |
993 | int ltype, | |
994 | const char *rvalue, | |
995 | void *data, | |
996 | void *userdata) { | |
997 | Network *network = userdata; | |
fcbf4cb7 | 998 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
e63be084 SS |
999 | int r; |
1000 | ||
1001 | assert(filename); | |
1002 | assert(section); | |
1003 | assert(lvalue); | |
1004 | assert(rvalue); | |
1005 | assert(data); | |
1006 | ||
f4859fc7 | 1007 | r = address_new_static(network, filename, section_line, &n); |
e63be084 SS |
1008 | if (r < 0) |
1009 | return r; | |
1010 | ||
1011 | r = parse_boolean(rvalue); | |
1012 | if (r < 0) { | |
2850cd40 | 1013 | log_syntax(unit, LOG_ERR, filename, line, r, |
051e77ca | 1014 | "Failed to parse %s=, ignoring: %s", lvalue, rvalue); |
e63be084 SS |
1015 | return 0; |
1016 | } | |
1017 | ||
1018 | if (streq(lvalue, "HomeAddress")) | |
1019 | n->home_address = r; | |
e63be084 SS |
1020 | else if (streq(lvalue, "ManageTemporaryAddress")) |
1021 | n->manage_temporary_address = r; | |
1022 | else if (streq(lvalue, "PrefixRoute")) | |
de697db0 YW |
1023 | n->prefix_route = !r; |
1024 | else if (streq(lvalue, "AddPrefixRoute")) | |
e63be084 SS |
1025 | n->prefix_route = r; |
1026 | else if (streq(lvalue, "AutoJoin")) | |
1027 | n->autojoin = r; | |
2850cd40 YW |
1028 | else |
1029 | assert_not_reached("Invalid address flag type."); | |
e63be084 | 1030 | |
4aa4c4b0 | 1031 | n = NULL; |
e63be084 SS |
1032 | return 0; |
1033 | } | |
1034 | ||
2959fb07 SS |
1035 | int config_parse_address_scope(const char *unit, |
1036 | const char *filename, | |
1037 | unsigned line, | |
1038 | const char *section, | |
1039 | unsigned section_line, | |
1040 | const char *lvalue, | |
1041 | int ltype, | |
1042 | const char *rvalue, | |
1043 | void *data, | |
1044 | void *userdata) { | |
1045 | Network *network = userdata; | |
fcbf4cb7 | 1046 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; |
2959fb07 SS |
1047 | int r; |
1048 | ||
1049 | assert(filename); | |
1050 | assert(section); | |
1051 | assert(lvalue); | |
1052 | assert(rvalue); | |
1053 | assert(data); | |
1054 | ||
1055 | r = address_new_static(network, filename, section_line, &n); | |
1056 | if (r < 0) | |
1057 | return r; | |
1058 | ||
1059 | if (streq(rvalue, "host")) | |
1060 | n->scope = RT_SCOPE_HOST; | |
1061 | else if (streq(rvalue, "link")) | |
1062 | n->scope = RT_SCOPE_LINK; | |
1063 | else if (streq(rvalue, "global")) | |
1064 | n->scope = RT_SCOPE_UNIVERSE; | |
1065 | else { | |
1066 | r = safe_atou8(rvalue , &n->scope); | |
1067 | if (r < 0) { | |
2850cd40 YW |
1068 | log_syntax(unit, LOG_ERR, filename, line, r, |
1069 | "Could not parse address scope \"%s\", ignoring assignment: %m", rvalue); | |
2959fb07 SS |
1070 | return 0; |
1071 | } | |
1072 | } | |
1073 | ||
07336a06 | 1074 | n->scope_set = true; |
2959fb07 | 1075 | n = NULL; |
2959fb07 SS |
1076 | return 0; |
1077 | } | |
1078 | ||
051e77ca SS |
1079 | int config_parse_duplicate_address_detection( |
1080 | const char *unit, | |
1081 | const char *filename, | |
1082 | unsigned line, | |
1083 | const char *section, | |
1084 | unsigned section_line, | |
1085 | const char *lvalue, | |
1086 | int ltype, | |
1087 | const char *rvalue, | |
1088 | void *data, | |
1089 | void *userdata) { | |
1090 | Network *network = userdata; | |
1091 | _cleanup_(address_free_or_set_invalidp) Address *n = NULL; | |
1092 | AddressFamily a; | |
1093 | int r; | |
1094 | ||
1095 | assert(filename); | |
1096 | assert(section); | |
1097 | assert(lvalue); | |
1098 | assert(rvalue); | |
1099 | assert(data); | |
1100 | ||
1101 | r = address_new_static(network, filename, section_line, &n); | |
1102 | if (r < 0) | |
1103 | return r; | |
1104 | ||
1105 | r = parse_boolean(rvalue); | |
1106 | if (r >= 0) { | |
1107 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
1108 | "For historical reasons, %s=%s means %s=%s. " | |
1109 | "Please use 'both', 'ipv4', 'ipv6' or 'none' instead.", | |
1110 | lvalue, rvalue, lvalue, r ? "none" : "both"); | |
1111 | n->duplicate_address_detection = r ? ADDRESS_FAMILY_NO : ADDRESS_FAMILY_YES; | |
1112 | n = NULL; | |
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | a = duplicate_address_detection_address_family_from_string(rvalue); | |
1117 | if (a < 0) { | |
1118 | log_syntax(unit, LOG_ERR, filename, line, SYNTHETIC_ERRNO(EINVAL), | |
1119 | "Failed to parse %s=, ignoring: %s", lvalue, rvalue); | |
1120 | return 0; | |
1121 | } | |
1122 | ||
1123 | n->duplicate_address_detection = a; | |
1124 | n = NULL; | |
1125 | return 0; | |
1126 | } | |
1127 | ||
ce6c77eb TG |
1128 | bool address_is_ready(const Address *a) { |
1129 | assert(a); | |
1130 | ||
ce158189 | 1131 | return !(a->flags & IFA_F_TENTATIVE); |
ce6c77eb | 1132 | } |
fcbf4cb7 YW |
1133 | |
1134 | int address_section_verify(Address *address) { | |
1135 | if (section_is_invalid(address->section)) | |
1136 | return -EINVAL; | |
1137 | ||
1138 | if (address->family == AF_UNSPEC) { | |
1139 | assert(address->section); | |
1140 | ||
1141 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
1142 | "%s: Address section without Address= field configured. " | |
1143 | "Ignoring [Address] section from line %u.", | |
1144 | address->section->filename, address->section->line); | |
1145 | } | |
1146 | ||
07336a06 YW |
1147 | if (!address->scope_set && in_addr_is_localhost(address->family, &address->in_addr) > 0) |
1148 | address->scope = RT_SCOPE_HOST; | |
1149 | ||
fcbf4cb7 YW |
1150 | return 0; |
1151 | } |