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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
f579559b TG |
2 | |
3 | #include <net/if.h> | |
b8162cd2 | 4 | #include <net/if_arp.h> |
f579559b | 5 | |
b5efdb8a | 6 | #include "alloc-util.h" |
12c2884c | 7 | #include "firewall-util.h" |
3ae6b3bf | 8 | #include "logarithm.h" |
0a970718 | 9 | #include "memory-util.h" |
fc2f9534 | 10 | #include "netlink-util.h" |
bfbf150e | 11 | #include "networkd-address-pool.h" |
6bedfcbb | 12 | #include "networkd-address.h" |
3b6a3bde | 13 | #include "networkd-dhcp-server.h" |
76a86ffd | 14 | #include "networkd-ipv4acd.h" |
23f53b99 | 15 | #include "networkd-manager.h" |
4b3590c3 | 16 | #include "networkd-netlabel.h" |
093e3533 | 17 | #include "networkd-network.h" |
76c5a0f2 | 18 | #include "networkd-queue.h" |
d8c472f2 | 19 | #include "networkd-route-util.h" |
3b6a3bde | 20 | #include "networkd-route.h" |
6bedfcbb | 21 | #include "parse-util.h" |
07630cea | 22 | #include "string-util.h" |
51517f9e | 23 | #include "strv.h" |
0fd97a25 | 24 | #include "strxcpyx.h" |
f579559b | 25 | |
1b566071 | 26 | #define ADDRESSES_PER_LINK_MAX 2048U |
8c34b963 LP |
27 | #define STATIC_ADDRESSES_PER_NETWORK_MAX 1024U |
28 | ||
b1179a5d YW |
29 | #define KNOWN_FLAGS \ |
30 | (IFA_F_SECONDARY | \ | |
31 | IFA_F_NODAD | \ | |
32 | IFA_F_OPTIMISTIC | \ | |
33 | IFA_F_DADFAILED | \ | |
34 | IFA_F_HOMEADDRESS | \ | |
35 | IFA_F_DEPRECATED | \ | |
36 | IFA_F_TENTATIVE | \ | |
37 | IFA_F_PERMANENT | \ | |
38 | IFA_F_MANAGETEMPADDR | \ | |
39 | IFA_F_NOPREFIXROUTE | \ | |
40 | IFA_F_MCAUTOJOIN | \ | |
41 | IFA_F_STABLE_PRIVACY) | |
42 | ||
43 | /* From net/ipv4/devinet.c */ | |
44 | #define IPV6ONLY_FLAGS \ | |
45 | (IFA_F_NODAD | \ | |
46 | IFA_F_OPTIMISTIC | \ | |
47 | IFA_F_DADFAILED | \ | |
48 | IFA_F_HOMEADDRESS | \ | |
49 | IFA_F_TENTATIVE | \ | |
50 | IFA_F_MANAGETEMPADDR | \ | |
51 | IFA_F_STABLE_PRIVACY) | |
52 | ||
53 | /* We do not control the following flags. */ | |
54 | #define UNMANAGED_FLAGS \ | |
55 | (IFA_F_SECONDARY | \ | |
56 | IFA_F_DADFAILED | \ | |
57 | IFA_F_DEPRECATED | \ | |
58 | IFA_F_TENTATIVE | \ | |
59 | IFA_F_PERMANENT | \ | |
60 | IFA_F_STABLE_PRIVACY) | |
61 | ||
42ceb474 | 62 | int address_flags_to_string_alloc(uint32_t flags, int family, char **ret) { |
a2362484 | 63 | _cleanup_free_ char *str = NULL; |
7396e014 ZJS |
64 | static const char* map[] = { |
65 | [LOG2U(IFA_F_SECONDARY)] = "secondary", /* This is also called "temporary" for ipv6. */ | |
66 | [LOG2U(IFA_F_NODAD)] = "nodad", | |
67 | [LOG2U(IFA_F_OPTIMISTIC)] = "optimistic", | |
68 | [LOG2U(IFA_F_DADFAILED)] = "dadfailed", | |
69 | [LOG2U(IFA_F_HOMEADDRESS)] = "home-address", | |
70 | [LOG2U(IFA_F_DEPRECATED)] = "deprecated", | |
71 | [LOG2U(IFA_F_TENTATIVE)] = "tentative", | |
72 | [LOG2U(IFA_F_PERMANENT)] = "permanent", | |
73 | [LOG2U(IFA_F_MANAGETEMPADDR)] = "manage-temporary-address", | |
74 | [LOG2U(IFA_F_NOPREFIXROUTE)] = "no-prefixroute", | |
75 | [LOG2U(IFA_F_MCAUTOJOIN)] = "auto-join", | |
76 | [LOG2U(IFA_F_STABLE_PRIVACY)] = "stable-privacy", | |
a2362484 YW |
77 | }; |
78 | ||
79 | assert(IN_SET(family, AF_INET, AF_INET6)); | |
80 | assert(ret); | |
81 | ||
0828a386 | 82 | for (size_t i = 0; i < ELEMENTSOF(map); i++) |
7396e014 ZJS |
83 | if (FLAGS_SET(flags, 1 << i) && map[i]) |
84 | if (!strextend_with_separator( | |
85 | &str, ",", | |
86 | family == AF_INET6 && (1 << i) == IFA_F_SECONDARY ? "temporary" : map[i])) | |
87 | return -ENOMEM; | |
a2362484 YW |
88 | |
89 | *ret = TAKE_PTR(str); | |
90 | return 0; | |
91 | } | |
92 | ||
60415c13 YW |
93 | static LinkAddressState address_state_from_scope(uint8_t scope) { |
94 | if (scope < RT_SCOPE_SITE) | |
95 | /* universally accessible addresses found */ | |
96 | return LINK_ADDRESS_STATE_ROUTABLE; | |
97 | ||
98 | if (scope < RT_SCOPE_HOST) | |
99 | /* only link or site local addresses found */ | |
100 | return LINK_ADDRESS_STATE_DEGRADED; | |
101 | ||
102 | /* no useful addresses found */ | |
103 | return LINK_ADDRESS_STATE_OFF; | |
104 | } | |
105 | ||
106 | void link_get_address_states( | |
107 | Link *link, | |
108 | LinkAddressState *ret_ipv4, | |
109 | LinkAddressState *ret_ipv6, | |
110 | LinkAddressState *ret_all) { | |
111 | ||
112 | uint8_t ipv4_scope = RT_SCOPE_NOWHERE, ipv6_scope = RT_SCOPE_NOWHERE; | |
113 | Address *address; | |
114 | ||
115 | assert(link); | |
116 | ||
117 | SET_FOREACH(address, link->addresses) { | |
118 | if (!address_is_ready(address)) | |
119 | continue; | |
120 | ||
121 | if (address->family == AF_INET) | |
122 | ipv4_scope = MIN(ipv4_scope, address->scope); | |
123 | ||
124 | if (address->family == AF_INET6) | |
125 | ipv6_scope = MIN(ipv6_scope, address->scope); | |
126 | } | |
127 | ||
128 | if (ret_ipv4) | |
129 | *ret_ipv4 = address_state_from_scope(ipv4_scope); | |
130 | if (ret_ipv6) | |
131 | *ret_ipv6 = address_state_from_scope(ipv6_scope); | |
132 | if (ret_all) | |
133 | *ret_all = address_state_from_scope(MIN(ipv4_scope, ipv6_scope)); | |
134 | } | |
135 | ||
ebd96906 YW |
136 | static void address_hash_func(const Address *a, struct siphash *state); |
137 | static int address_compare_func(const Address *a1, const Address *a2); | |
138 | static void address_detach(Address *address); | |
139 | ||
140 | DEFINE_PRIVATE_HASH_OPS_WITH_KEY_DESTRUCTOR( | |
141 | address_hash_ops_detach, | |
142 | Address, | |
143 | address_hash_func, | |
144 | address_compare_func, | |
145 | address_detach); | |
146 | ||
147 | DEFINE_HASH_OPS( | |
148 | address_hash_ops, | |
149 | Address, | |
150 | address_hash_func, | |
151 | address_compare_func); | |
152 | ||
153 | DEFINE_HASH_OPS_WITH_VALUE_DESTRUCTOR( | |
154 | address_section_hash_ops, | |
155 | ConfigSection, | |
156 | config_section_hash_func, | |
157 | config_section_compare_func, | |
158 | Address, | |
159 | address_detach); | |
160 | ||
f0213e37 | 161 | int address_new(Address **ret) { |
ebd96906 | 162 | _cleanup_(address_unrefp) Address *address = NULL; |
f0213e37 | 163 | |
17f9c355 | 164 | address = new(Address, 1); |
f0213e37 TG |
165 | if (!address) |
166 | return -ENOMEM; | |
aba496a5 | 167 | |
17f9c355 | 168 | *address = (Address) { |
ebd96906 | 169 | .n_ref = 1, |
17f9c355 YW |
170 | .family = AF_UNSPEC, |
171 | .scope = RT_SCOPE_UNIVERSE, | |
16bc8635 YW |
172 | .lifetime_valid_usec = USEC_INFINITY, |
173 | .lifetime_preferred_usec = USEC_INFINITY, | |
832583ad | 174 | .set_broadcast = -1, |
17f9c355 | 175 | }; |
f0213e37 | 176 | |
1cc6c93a | 177 | *ret = TAKE_PTR(address); |
f0213e37 TG |
178 | |
179 | return 0; | |
aba496a5 UTL |
180 | } |
181 | ||
5459e11d | 182 | int address_new_static(Network *network, const char *filename, unsigned section_line, Address **ret) { |
307fe3cd | 183 | _cleanup_(config_section_freep) ConfigSection *n = NULL; |
ebd96906 | 184 | _cleanup_(address_unrefp) Address *address = NULL; |
f0213e37 | 185 | int r; |
f579559b | 186 | |
8c34b963 LP |
187 | assert(network); |
188 | assert(ret); | |
9cd9fc8f YW |
189 | assert(filename); |
190 | assert(section_line > 0); | |
f4859fc7 | 191 | |
307fe3cd | 192 | r = config_section_new(filename, section_line, &n); |
9cd9fc8f YW |
193 | if (r < 0) |
194 | return r; | |
6ae115c1 | 195 | |
9cd9fc8f YW |
196 | address = ordered_hashmap_get(network->addresses_by_section, n); |
197 | if (address) { | |
198 | *ret = TAKE_PTR(address); | |
199 | return 0; | |
6ae115c1 TG |
200 | } |
201 | ||
9cd9fc8f | 202 | if (ordered_hashmap_size(network->addresses_by_section) >= STATIC_ADDRESSES_PER_NETWORK_MAX) |
8c34b963 LP |
203 | return -E2BIG; |
204 | ||
f0213e37 TG |
205 | r = address_new(&address); |
206 | if (r < 0) | |
207 | return r; | |
801bd9e8 | 208 | |
0f7f2769 | 209 | address->network = network; |
9cd9fc8f | 210 | address->section = TAKE_PTR(n); |
3b6a3bde | 211 | address->source = NETWORK_CONFIG_SOURCE_STATIC; |
2859932b YW |
212 | /* This will be adjusted in address_section_verify(). */ |
213 | address->duplicate_address_detection = _ADDRESS_FAMILY_INVALID; | |
0f7f2769 | 214 | |
ebd96906 | 215 | r = ordered_hashmap_ensure_put(&network->addresses_by_section, &address_section_hash_ops, address->section, address); |
9cd9fc8f YW |
216 | if (r < 0) |
217 | return r; | |
6ae115c1 | 218 | |
1cc6c93a | 219 | *ret = TAKE_PTR(address); |
f579559b TG |
220 | return 0; |
221 | } | |
222 | ||
ebd96906 YW |
223 | static Address* address_detach_impl(Address *address) { |
224 | assert(address); | |
225 | assert(!address->link || !address->network); | |
f579559b | 226 | |
f048a16b | 227 | if (address->network) { |
9cd9fc8f YW |
228 | assert(address->section); |
229 | ordered_hashmap_remove(address->network->addresses_by_section, address->section); | |
8ae3a4f5 YW |
230 | |
231 | if (address->network->dhcp_server_address == address) | |
232 | address->network->dhcp_server_address = NULL; | |
ebd96906 YW |
233 | |
234 | address->network = NULL; | |
235 | return address; | |
f048a16b | 236 | } |
6ae115c1 | 237 | |
ebd96906 | 238 | if (address->link) { |
cf1d700d | 239 | set_remove(address->link->addresses, address); |
f150100a | 240 | |
ebd96906 YW |
241 | address->link = NULL; |
242 | return address; | |
243 | } | |
244 | ||
245 | return NULL; | |
246 | } | |
247 | ||
248 | static void address_detach(Address *address) { | |
249 | assert(address); | |
250 | ||
251 | address_unref(address_detach_impl(address)); | |
252 | } | |
253 | ||
254 | static Address* address_free(Address *address) { | |
255 | if (!address) | |
256 | return NULL; | |
257 | ||
258 | address_detach_impl(address); | |
259 | ||
307fe3cd | 260 | config_section_free(address->section); |
de4224aa | 261 | free(address->label); |
4b3590c3 | 262 | free(address->netlabel); |
fc289dd0 | 263 | nft_set_context_clear(&address->nft_set_context); |
7818f858 | 264 | return mfree(address); |
f579559b TG |
265 | } |
266 | ||
ebd96906 YW |
267 | DEFINE_TRIVIAL_REF_UNREF_FUNC(Address, address, address_free); |
268 | ||
dc32de39 YW |
269 | static bool address_lifetime_is_valid(const Address *a) { |
270 | assert(a); | |
271 | ||
272 | return | |
273 | a->lifetime_valid_usec == USEC_INFINITY || | |
274 | a->lifetime_valid_usec > now(CLOCK_BOOTTIME); | |
275 | } | |
276 | ||
3b6a3bde YW |
277 | bool address_is_ready(const Address *a) { |
278 | assert(a); | |
5385e5f9 | 279 | assert(a->link); |
3b6a3bde | 280 | |
5385e5f9 | 281 | if (!ipv4acd_bound(a->link, a)) |
3b6a3bde YW |
282 | return false; |
283 | ||
e402e99e | 284 | if (FLAGS_SET(a->flags, IFA_F_TENTATIVE)) |
3b6a3bde YW |
285 | return false; |
286 | ||
e402e99e | 287 | if (FLAGS_SET(a->state, NETWORK_CONFIG_STATE_REMOVING)) |
3b6a3bde YW |
288 | return false; |
289 | ||
290 | if (!FLAGS_SET(a->state, NETWORK_CONFIG_STATE_CONFIGURED)) | |
291 | return false; | |
292 | ||
dc32de39 | 293 | return address_lifetime_is_valid(a); |
3b6a3bde YW |
294 | } |
295 | ||
5f950e56 YW |
296 | bool link_check_addresses_ready(Link *link, NetworkConfigSource source) { |
297 | Address *a; | |
298 | bool has = false; | |
299 | ||
300 | assert(link); | |
301 | ||
302 | /* Check if all addresses on the interface are ready. If there is no address, this will return false. */ | |
303 | ||
304 | SET_FOREACH(a, link->addresses) { | |
305 | if (source >= 0 && a->source != source) | |
306 | continue; | |
307 | if (address_is_marked(a)) | |
308 | continue; | |
309 | if (!address_exists(a)) | |
310 | continue; | |
311 | if (!address_is_ready(a)) | |
312 | return false; | |
313 | has = true; | |
314 | } | |
315 | ||
316 | return has; | |
317 | } | |
318 | ||
2ccada8d | 319 | void link_mark_addresses(Link *link, NetworkConfigSource source) { |
3b6a3bde YW |
320 | Address *a; |
321 | ||
322 | assert(link); | |
323 | ||
324 | SET_FOREACH(a, link->addresses) { | |
325 | if (a->source != source) | |
326 | continue; | |
327 | ||
3b6a3bde YW |
328 | address_mark(a); |
329 | } | |
330 | } | |
331 | ||
0ae8ff50 | 332 | static int address_get_broadcast(const Address *a, Link *link, struct in_addr *ret) { |
1a1f4a80 YW |
333 | struct in_addr b_addr = {}; |
334 | ||
2a236f9f | 335 | assert(a); |
e680486d | 336 | assert(link); |
2a236f9f | 337 | |
1a1f4a80 YW |
338 | /* Returns 0 when broadcast address is null, 1 when non-null broadcast address, -EAGAIN when the main |
339 | * address is null. */ | |
340 | ||
341 | /* broadcast is only for IPv4. */ | |
473680be | 342 | if (a->family != AF_INET) |
1a1f4a80 | 343 | goto finalize; |
473680be | 344 | |
1a1f4a80 | 345 | /* broadcast address cannot be used when peer address is specified. */ |
473680be | 346 | if (in4_addr_is_set(&a->in_addr_peer.in)) |
1a1f4a80 | 347 | goto finalize; |
473680be | 348 | |
2a236f9f YW |
349 | /* A /31 or /32 IPv4 address does not have a broadcast address. |
350 | * See https://tools.ietf.org/html/rfc3021 */ | |
473680be | 351 | if (a->prefixlen > 30) |
1a1f4a80 | 352 | goto finalize; |
473680be | 353 | |
1a1f4a80 YW |
354 | /* If explicitly configured, use the address as is. */ |
355 | if (in4_addr_is_set(&a->broadcast)) { | |
356 | b_addr = a->broadcast; | |
357 | goto finalize; | |
358 | } | |
473680be | 359 | |
1a1f4a80 YW |
360 | /* If explicitly disabled, then return null address. */ |
361 | if (a->set_broadcast == 0) | |
362 | goto finalize; | |
473680be | 363 | |
1a1f4a80 YW |
364 | /* For wireguard interfaces, broadcast is disabled by default. */ |
365 | if (a->set_broadcast < 0 && streq_ptr(link->kind, "wireguard")) | |
366 | goto finalize; | |
2a236f9f | 367 | |
1a1f4a80 YW |
368 | /* If the main address is null, e.g. Address=0.0.0.0/24, the broadcast address will be automatically |
369 | * determined after an address is acquired. */ | |
370 | if (!in4_addr_is_set(&a->in_addr.in)) | |
371 | return -EAGAIN; | |
372 | ||
373 | /* Otherwise, generate a broadcast address from the main address and prefix length. */ | |
374 | b_addr.s_addr = a->in_addr.in.s_addr | htobe32(UINT32_C(0xffffffff) >> a->prefixlen); | |
832583ad | 375 | |
1a1f4a80 YW |
376 | finalize: |
377 | if (ret) | |
378 | *ret = b_addr; | |
832583ad | 379 | |
1a1f4a80 | 380 | return in4_addr_is_set(&b_addr); |
832583ad YW |
381 | } |
382 | ||
0ae8ff50 YW |
383 | static void address_set_broadcast(Address *a, Link *link) { |
384 | assert(a); | |
385 | assert_se(address_get_broadcast(a, link, &a->broadcast) >= 0); | |
386 | } | |
387 | ||
b9e4ec50 | 388 | static void address_set_cinfo(Manager *m, const Address *a, struct ifa_cacheinfo *cinfo) { |
16bc8635 YW |
389 | usec_t now_usec; |
390 | ||
def4741b | 391 | assert(m); |
16bc8635 YW |
392 | assert(a); |
393 | assert(cinfo); | |
394 | ||
def4741b | 395 | assert_se(sd_event_now(m->event, CLOCK_BOOTTIME, &now_usec) >= 0); |
16bc8635 YW |
396 | |
397 | *cinfo = (struct ifa_cacheinfo) { | |
5235d739 YW |
398 | .ifa_valid = usec_to_sec(a->lifetime_valid_usec, now_usec), |
399 | .ifa_prefered = usec_to_sec(a->lifetime_preferred_usec, now_usec), | |
16bc8635 | 400 | }; |
16bc8635 YW |
401 | } |
402 | ||
def4741b | 403 | static void address_set_lifetime(Manager *m, Address *a, const struct ifa_cacheinfo *cinfo) { |
16bc8635 YW |
404 | usec_t now_usec; |
405 | ||
def4741b | 406 | assert(m); |
16bc8635 YW |
407 | assert(a); |
408 | assert(cinfo); | |
409 | ||
def4741b | 410 | assert_se(sd_event_now(m->event, CLOCK_BOOTTIME, &now_usec) >= 0); |
16bc8635 | 411 | |
5235d739 YW |
412 | a->lifetime_valid_usec = sec_to_usec(cinfo->ifa_valid, now_usec); |
413 | a->lifetime_preferred_usec = sec_to_usec(cinfo->ifa_prefered, now_usec); | |
16bc8635 YW |
414 | } |
415 | ||
d0009d92 YW |
416 | static bool address_is_static_null(const Address *address) { |
417 | assert(address); | |
418 | ||
419 | if (!address->network) | |
420 | return false; | |
421 | ||
422 | if (!address->requested_as_null) | |
423 | return false; | |
424 | ||
425 | assert(!in_addr_is_set(address->family, &address->in_addr)); | |
426 | return true; | |
427 | } | |
428 | ||
381e3cc6 YW |
429 | static int address_ipv4_prefix(const Address *a, struct in_addr *ret) { |
430 | struct in_addr p; | |
431 | int r; | |
432 | ||
1d30fc5c | 433 | assert(a); |
381e3cc6 YW |
434 | assert(a->family == AF_INET); |
435 | assert(ret); | |
1d30fc5c | 436 | |
381e3cc6 YW |
437 | p = in4_addr_is_set(&a->in_addr_peer.in) ? a->in_addr_peer.in : a->in_addr.in; |
438 | r = in4_addr_mask(&p, a->prefixlen); | |
439 | if (r < 0) | |
440 | return r; | |
1d30fc5c | 441 | |
381e3cc6 YW |
442 | *ret = p; |
443 | return 0; | |
1d30fc5c YW |
444 | } |
445 | ||
4da252c5 | 446 | static void address_hash_func(const Address *a, struct siphash *state) { |
3ac8e543 TG |
447 | assert(a); |
448 | ||
c01a5c05 | 449 | siphash24_compress_typesafe(a->family, state); |
3ac8e543 | 450 | |
1d30fc5c | 451 | switch (a->family) { |
381e3cc6 YW |
452 | case AF_INET: { |
453 | struct in_addr prefix; | |
454 | ||
c01a5c05 | 455 | siphash24_compress_typesafe(a->prefixlen, state); |
3ac8e543 | 456 | |
381e3cc6 | 457 | assert_se(address_ipv4_prefix(a, &prefix) >= 0); |
c01a5c05 | 458 | siphash24_compress_typesafe(prefix, state); |
3ac8e543 | 459 | |
c01a5c05 | 460 | siphash24_compress_typesafe(a->in_addr.in, state); |
52af8e5e | 461 | break; |
381e3cc6 | 462 | } |
1d30fc5c | 463 | case AF_INET6: |
c01a5c05 | 464 | siphash24_compress_typesafe(a->in_addr.in6, state); |
6174dc7d YW |
465 | |
466 | if (in6_addr_is_null(&a->in_addr.in6)) | |
c01a5c05 | 467 | siphash24_compress_typesafe(a->prefixlen, state); |
1d30fc5c | 468 | break; |
52af8e5e | 469 | |
1d30fc5c YW |
470 | default: |
471 | /* treat any other address family as AF_UNSPEC */ | |
472 | break; | |
473 | } | |
3ac8e543 TG |
474 | } |
475 | ||
4da252c5 | 476 | static int address_compare_func(const Address *a1, const Address *a2) { |
a0edd02e | 477 | int r; |
3ac8e543 | 478 | |
a0edd02e FB |
479 | r = CMP(a1->family, a2->family); |
480 | if (r != 0) | |
481 | return r; | |
3ac8e543 | 482 | |
1d30fc5c | 483 | switch (a1->family) { |
381e3cc6 YW |
484 | case AF_INET: { |
485 | struct in_addr p1, p2; | |
486 | ||
1d30fc5c YW |
487 | /* See kernel's find_matching_ifa() in net/ipv4/devinet.c */ |
488 | r = CMP(a1->prefixlen, a2->prefixlen); | |
24be9181 ZJS |
489 | if (r != 0) |
490 | return r; | |
3ac8e543 | 491 | |
381e3cc6 YW |
492 | assert_se(address_ipv4_prefix(a1, &p1) >= 0); |
493 | assert_se(address_ipv4_prefix(a2, &p2) >= 0); | |
494 | r = memcmp(&p1, &p2, sizeof(p1)); | |
1d30fc5c YW |
495 | if (r != 0) |
496 | return r; | |
2a236f9f | 497 | |
52af8e5e | 498 | return memcmp(&a1->in_addr.in, &a2->in_addr.in, sizeof(a1->in_addr.in)); |
381e3cc6 | 499 | } |
1d30fc5c YW |
500 | case AF_INET6: |
501 | /* See kernel's ipv6_get_ifaddr() in net/ipv6/addrconf.c */ | |
6174dc7d YW |
502 | r = memcmp(&a1->in_addr.in6, &a2->in_addr.in6, sizeof(a1->in_addr.in6)); |
503 | if (r != 0) | |
504 | return r; | |
505 | ||
506 | /* To distinguish IPv6 null addresses with different prefixlen, e.g. ::48 vs ::64, let's | |
507 | * compare the prefix length. */ | |
508 | if (in6_addr_is_null(&a1->in_addr.in6)) | |
509 | r = CMP(a1->prefixlen, a2->prefixlen); | |
510 | ||
511 | return r; | |
52af8e5e | 512 | |
1d30fc5c YW |
513 | default: |
514 | /* treat any other address family as AF_UNSPEC */ | |
515 | return 0; | |
516 | } | |
3ac8e543 TG |
517 | } |
518 | ||
77de62f9 | 519 | bool address_can_update(const Address *existing, const Address *requesting) { |
a45e1c35 YW |
520 | assert(existing); |
521 | assert(requesting); | |
b5aefc90 YW |
522 | |
523 | /* | |
524 | * property | IPv4 | IPv6 | |
525 | * ----------------------------------------- | |
526 | * family | ✗ | ✗ | |
527 | * prefixlen | ✗ | ✗ | |
528 | * address | ✗ | ✗ | |
529 | * scope | ✗ | - | |
530 | * label | ✗ | - | |
531 | * broadcast | ✗ | - | |
532 | * peer | ✗ | ✓ | |
533 | * flags | ✗ | ✓ | |
534 | * lifetime | ✓ | ✓ | |
535 | * route metric | ✓ | ✓ | |
536 | * protocol | ✓ | ✓ | |
537 | * | |
538 | * ✗ : cannot be changed | |
539 | * ✓ : can be changed | |
540 | * - : unused | |
541 | * | |
542 | * IPv4 : See inet_rtm_newaddr() in net/ipv4/devinet.c. | |
543 | * IPv6 : See inet6_addr_modify() in net/ipv6/addrconf.c. | |
544 | */ | |
545 | ||
a45e1c35 | 546 | if (existing->family != requesting->family) |
b5aefc90 YW |
547 | return false; |
548 | ||
a45e1c35 | 549 | if (existing->prefixlen != requesting->prefixlen) |
b5aefc90 YW |
550 | return false; |
551 | ||
552 | /* When a null address is requested, the address to be assigned/updated will be determined later. */ | |
a45e1c35 YW |
553 | if (!address_is_static_null(requesting) && |
554 | in_addr_equal(existing->family, &existing->in_addr, &requesting->in_addr) <= 0) | |
b5aefc90 YW |
555 | return false; |
556 | ||
a45e1c35 | 557 | switch (existing->family) { |
b5aefc90 YW |
558 | case AF_INET: { |
559 | struct in_addr bcast; | |
560 | ||
a45e1c35 | 561 | if (existing->scope != requesting->scope) |
b5aefc90 | 562 | return false; |
a45e1c35 | 563 | if (((existing->flags ^ requesting->flags) & KNOWN_FLAGS & ~IPV6ONLY_FLAGS & ~UNMANAGED_FLAGS) != 0) |
b5aefc90 | 564 | return false; |
a45e1c35 | 565 | if (!streq_ptr(existing->label, requesting->label)) |
b5aefc90 | 566 | return false; |
a45e1c35 | 567 | if (!in4_addr_equal(&existing->in_addr_peer.in, &requesting->in_addr_peer.in)) |
b5aefc90 | 568 | return false; |
a45e1c35 | 569 | if (existing->link && address_get_broadcast(requesting, existing->link, &bcast) >= 0) { |
b5aefc90 | 570 | /* If the broadcast address can be determined now, check if they match. */ |
a45e1c35 | 571 | if (!in4_addr_equal(&existing->broadcast, &bcast)) |
b5aefc90 YW |
572 | return false; |
573 | } else { | |
574 | /* When a null address is requested, then the broadcast address will be | |
575 | * automatically calculated from the acquired address, e.g. | |
576 | * 192.168.0.10/24 -> 192.168.0.255 | |
577 | * So, here let's only check if the broadcast is the last address in the range, e.g. | |
578 | * 0.0.0.0/24 -> 0.0.0.255 */ | |
a45e1c35 | 579 | if (!FLAGS_SET(existing->broadcast.s_addr, htobe32(UINT32_C(0xffffffff) >> existing->prefixlen))) |
b5aefc90 YW |
580 | return false; |
581 | } | |
582 | break; | |
583 | } | |
584 | case AF_INET6: | |
585 | break; | |
586 | ||
587 | default: | |
588 | assert_not_reached(); | |
589 | } | |
590 | ||
591 | return true; | |
592 | } | |
593 | ||
99b46669 | 594 | int address_dup(const Address *src, Address **ret) { |
ebd96906 | 595 | _cleanup_(address_unrefp) Address *dest = NULL; |
cde1f0e8 YW |
596 | int r; |
597 | ||
cde1f0e8 | 598 | assert(src); |
99b46669 YW |
599 | assert(ret); |
600 | ||
601 | dest = newdup(Address, src, 1); | |
602 | if (!dest) | |
603 | return -ENOMEM; | |
604 | ||
ebd96906 YW |
605 | /* clear the reference counter and all pointers */ |
606 | dest->n_ref = 1; | |
99b46669 YW |
607 | dest->network = NULL; |
608 | dest->section = NULL; | |
609 | dest->link = NULL; | |
610 | dest->label = NULL; | |
4b3590c3 | 611 | dest->netlabel = NULL; |
fc289dd0 TM |
612 | dest->nft_set_context.sets = NULL; |
613 | dest->nft_set_context.n_sets = 0; | |
cde1f0e8 | 614 | |
2a236f9f | 615 | if (src->family == AF_INET) { |
6504d41c | 616 | r = strdup_or_null(src->label, &dest->label); |
2a236f9f YW |
617 | if (r < 0) |
618 | return r; | |
619 | } | |
cde1f0e8 | 620 | |
6504d41c | 621 | r = strdup_or_null(src->netlabel, &dest->netlabel); |
4b3590c3 TM |
622 | if (r < 0) |
623 | return r; | |
624 | ||
fc289dd0 TM |
625 | r = nft_set_context_dup(&src->nft_set_context, &dest->nft_set_context); |
626 | if (r < 0) | |
627 | return r; | |
628 | ||
99b46669 | 629 | *ret = TAKE_PTR(dest); |
cde1f0e8 YW |
630 | return 0; |
631 | } | |
632 | ||
494b6b43 YW |
633 | static int address_set_masquerade(Address *address, bool add) { |
634 | union in_addr_union masked; | |
91b5f997 TG |
635 | int r; |
636 | ||
637 | assert(address); | |
494b6b43 | 638 | assert(address->link); |
91b5f997 | 639 | |
494b6b43 YW |
640 | if (!address->link->network) |
641 | return 0; | |
91b5f997 | 642 | |
48ed2766 FW |
643 | if (address->family == AF_INET && |
644 | !FLAGS_SET(address->link->network->ip_masquerade, ADDRESS_FAMILY_IPV4)) | |
494b6b43 | 645 | return 0; |
91b5f997 | 646 | |
48ed2766 FW |
647 | if (address->family == AF_INET6 && |
648 | !FLAGS_SET(address->link->network->ip_masquerade, ADDRESS_FAMILY_IPV6)) | |
494b6b43 | 649 | return 0; |
91b5f997 | 650 | |
494b6b43 YW |
651 | if (address->scope >= RT_SCOPE_LINK) |
652 | return 0; | |
653 | ||
da0e2bae | 654 | if (address->ip_masquerade_done == add) |
494b6b43 YW |
655 | return 0; |
656 | ||
657 | masked = address->in_addr; | |
658 | r = in_addr_mask(address->family, &masked, address->prefixlen); | |
659 | if (r < 0) | |
660 | return r; | |
661 | ||
48ed2766 | 662 | r = fw_add_masquerade(&address->link->manager->fw_ctx, add, address->family, &masked, address->prefixlen); |
494b6b43 YW |
663 | if (r < 0) |
664 | return r; | |
665 | ||
da0e2bae | 666 | address->ip_masquerade_done = add; |
91b5f997 TG |
667 | |
668 | return 0; | |
669 | } | |
670 | ||
fc289dd0 TM |
671 | static void address_modify_nft_set_context(Address *address, bool add, NFTSetContext *nft_set_context) { |
672 | int r; | |
673 | ||
674 | assert(address); | |
675 | assert(address->link); | |
676 | assert(address->link->manager); | |
677 | assert(nft_set_context); | |
678 | ||
679 | if (!address->link->manager->fw_ctx) { | |
58c6e75f | 680 | r = fw_ctx_new_full(&address->link->manager->fw_ctx, /* init_tables= */ false); |
fc289dd0 TM |
681 | if (r < 0) |
682 | return; | |
683 | } | |
684 | ||
685 | FOREACH_ARRAY(nft_set, nft_set_context->sets, nft_set_context->n_sets) { | |
686 | uint32_t ifindex; | |
687 | ||
688 | assert(nft_set); | |
689 | ||
690 | switch (nft_set->source) { | |
691 | case NFT_SET_SOURCE_ADDRESS: | |
692 | r = nft_set_element_modify_ip(address->link->manager->fw_ctx, add, nft_set->nfproto, address->family, nft_set->table, nft_set->set, | |
693 | &address->in_addr); | |
694 | break; | |
695 | case NFT_SET_SOURCE_PREFIX: | |
696 | r = nft_set_element_modify_iprange(address->link->manager->fw_ctx, add, nft_set->nfproto, address->family, nft_set->table, nft_set->set, | |
697 | &address->in_addr, address->prefixlen); | |
698 | break; | |
699 | case NFT_SET_SOURCE_IFINDEX: | |
700 | ifindex = address->link->ifindex; | |
701 | r = nft_set_element_modify_any(address->link->manager->fw_ctx, add, nft_set->nfproto, nft_set->table, nft_set->set, | |
702 | &ifindex, sizeof(ifindex)); | |
703 | break; | |
704 | default: | |
705 | assert_not_reached(); | |
706 | } | |
707 | ||
708 | if (r < 0) | |
13b8fb98 | 709 | log_warning_errno(r, "Failed to %s NFT set: family %s, table %s, set %s, IP address %s, ignoring: %m", |
4d9a30f1 | 710 | add ? "add" : "delete", |
fc289dd0 TM |
711 | nfproto_to_string(nft_set->nfproto), nft_set->table, nft_set->set, |
712 | IN_ADDR_PREFIX_TO_STRING(address->family, &address->in_addr, address->prefixlen)); | |
713 | else | |
714 | log_debug("%s NFT set: family %s, table %s, set %s, IP address %s", | |
715 | add ? "Added" : "Deleted", | |
716 | nfproto_to_string(nft_set->nfproto), nft_set->table, nft_set->set, | |
717 | IN_ADDR_PREFIX_TO_STRING(address->family, &address->in_addr, address->prefixlen)); | |
718 | } | |
719 | } | |
720 | ||
721 | static void address_modify_nft_set(Address *address, bool add) { | |
722 | assert(address); | |
723 | assert(address->link); | |
724 | ||
725 | if (!IN_SET(address->family, AF_INET, AF_INET6)) | |
726 | return; | |
727 | ||
728 | if (!address->link->network) | |
729 | return; | |
730 | ||
731 | switch (address->source) { | |
732 | case NETWORK_CONFIG_SOURCE_DHCP4: | |
733 | return address_modify_nft_set_context(address, add, &address->link->network->dhcp_nft_set_context); | |
734 | case NETWORK_CONFIG_SOURCE_DHCP6: | |
735 | return address_modify_nft_set_context(address, add, &address->link->network->dhcp6_nft_set_context); | |
736 | case NETWORK_CONFIG_SOURCE_DHCP_PD: | |
737 | return address_modify_nft_set_context(address, add, &address->link->network->dhcp_pd_nft_set_context); | |
738 | case NETWORK_CONFIG_SOURCE_NDISC: | |
739 | return address_modify_nft_set_context(address, add, &address->link->network->ndisc_nft_set_context); | |
740 | case NETWORK_CONFIG_SOURCE_STATIC: | |
741 | return address_modify_nft_set_context(address, add, &address->nft_set_context); | |
742 | default: | |
743 | return; | |
744 | } | |
745 | } | |
746 | ||
ebd96906 | 747 | static int address_attach(Link *link, Address *address) { |
cf1d700d TG |
748 | int r; |
749 | ||
750 | assert(link); | |
3b6a3bde | 751 | assert(address); |
ebd96906 | 752 | assert(!address->link); |
cf1d700d | 753 | |
ebd96906 | 754 | r = set_ensure_put(&link->addresses, &address_hash_ops_detach, address); |
cf1d700d TG |
755 | if (r < 0) |
756 | return r; | |
75a302b5 YW |
757 | if (r == 0) |
758 | return -EEXIST; | |
cf1d700d TG |
759 | |
760 | address->link = link; | |
ebd96906 | 761 | address_ref(address); |
7b3a7581 | 762 | return 0; |
adda1ed9 TG |
763 | } |
764 | ||
f9831557 | 765 | static int address_update(Address *address) { |
4bbe559b | 766 | Link *link = ASSERT_PTR(ASSERT_PTR(address)->link); |
e7ab854c | 767 | int r; |
36c32f61 | 768 | |
7657ec3e YW |
769 | if (address_is_ready(address) && |
770 | address->family == AF_INET6 && | |
771 | in6_addr_is_link_local(&address->in_addr.in6) && | |
772 | in6_addr_is_null(&link->ipv6ll_address)) { | |
773 | ||
774 | link->ipv6ll_address = address->in_addr.in6; | |
775 | ||
776 | r = link_ipv6ll_gained(link); | |
777 | if (r < 0) | |
778 | return r; | |
779 | } | |
780 | ||
2c40a889 | 781 | if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) |
ea121d8f YW |
782 | return 0; |
783 | ||
4bbe559b | 784 | r = address_set_masquerade(address, /* add = */ true); |
7a8685ff YW |
785 | if (r < 0) |
786 | return log_link_warning_errno(link, r, "Could not enable IP masquerading: %m"); | |
787 | ||
4b3590c3 TM |
788 | address_add_netlabel(address); |
789 | ||
fc289dd0 TM |
790 | address_modify_nft_set(address, /* add = */ true); |
791 | ||
981fab5d YW |
792 | if (address_is_ready(address) && address->callback) { |
793 | r = address->callback(address); | |
794 | if (r < 0) | |
795 | return r; | |
a3a019e1 | 796 | } |
36c32f61 | 797 | |
4bbe559b | 798 | link_update_operstate(link, /* also_update_master = */ true); |
981fab5d | 799 | link_check_ready(link); |
36c32f61 TG |
800 | return 0; |
801 | } | |
802 | ||
67a58eb3 | 803 | static int address_drop(Address *address) { |
4bbe559b | 804 | Link *link = ASSERT_PTR(ASSERT_PTR(address)->link); |
7750b796 | 805 | int r; |
8012cd39 | 806 | |
4bbe559b | 807 | r = address_set_masquerade(address, /* add = */ false); |
7750b796 YW |
808 | if (r < 0) |
809 | log_link_warning_errno(link, r, "Failed to disable IP masquerading, ignoring: %m"); | |
810 | ||
fc289dd0 TM |
811 | address_modify_nft_set(address, /* add = */ false); |
812 | ||
4b3590c3 TM |
813 | address_del_netlabel(address); |
814 | ||
f089d3eb YW |
815 | /* FIXME: if the IPv6LL address is dropped, stop DHCPv6, NDISC, RADV. */ |
816 | if (address->family == AF_INET6 && | |
817 | in6_addr_equal(&address->in_addr.in6, &link->ipv6ll_address)) | |
818 | link->ipv6ll_address = (const struct in6_addr) {}; | |
819 | ||
820 | ipv4acd_detach(link, address); | |
821 | ||
ebd96906 | 822 | address_detach(address); |
91b5f997 | 823 | |
aaad20e0 YW |
824 | link_update_operstate(link, /* also_update_master = */ true); |
825 | link_check_ready(link); | |
91b5f997 TG |
826 | return 0; |
827 | } | |
828 | ||
a2532c9d YW |
829 | static bool address_match_null(const Address *a, const Address *null_address) { |
830 | assert(a); | |
831 | assert(null_address); | |
832 | ||
833 | if (!a->requested_as_null) | |
834 | return false; | |
835 | ||
836 | /* Currently, null address is supported only by static addresses. Note that static | |
837 | * address may be set as foreign during reconfiguring the interface. */ | |
838 | if (!IN_SET(a->source, NETWORK_CONFIG_SOURCE_FOREIGN, NETWORK_CONFIG_SOURCE_STATIC)) | |
839 | return false; | |
840 | ||
841 | if (a->family != null_address->family) | |
842 | return false; | |
843 | ||
844 | if (a->prefixlen != null_address->prefixlen) | |
845 | return false; | |
846 | ||
847 | return true; | |
848 | } | |
849 | ||
0a0c2672 YW |
850 | static int address_get_request(Link *link, const Address *address, Request **ret) { |
851 | Request *req; | |
852 | ||
853 | assert(link); | |
854 | assert(link->manager); | |
855 | assert(address); | |
856 | ||
857 | req = ordered_set_get( | |
858 | link->manager->request_queue, | |
859 | &(Request) { | |
860 | .link = link, | |
861 | .type = REQUEST_TYPE_ADDRESS, | |
862 | .userdata = (void*) address, | |
4da252c5 YW |
863 | .hash_func = (hash_func_t) address_hash_func, |
864 | .compare_func = (compare_func_t) address_compare_func, | |
0a0c2672 YW |
865 | }); |
866 | if (req) { | |
867 | if (ret) | |
868 | *ret = req; | |
869 | return 0; | |
870 | } | |
871 | ||
872 | if (address_is_static_null(address)) | |
873 | ORDERED_SET_FOREACH(req, link->manager->request_queue) { | |
874 | if (req->link != link) | |
875 | continue; | |
876 | if (req->type != REQUEST_TYPE_ADDRESS) | |
877 | continue; | |
878 | ||
879 | if (!address_match_null(req->userdata, address)) | |
880 | continue; | |
881 | ||
882 | if (ret) | |
883 | *ret = req; | |
884 | ||
885 | return 0; | |
886 | } | |
887 | ||
888 | return -ENOENT; | |
889 | } | |
890 | ||
fe841414 | 891 | int address_get(Link *link, const Address *in, Address **ret) { |
d0009d92 | 892 | Address *a; |
91b5f997 | 893 | |
5a8bcb67 | 894 | assert(link); |
fe841414 | 895 | assert(in); |
5a8bcb67 | 896 | |
d0009d92 YW |
897 | a = set_get(link->addresses, in); |
898 | if (a) { | |
899 | if (ret) | |
900 | *ret = a; | |
901 | return 0; | |
902 | } | |
903 | ||
904 | /* Find matching address that originally requested as null address. */ | |
905 | if (address_is_static_null(in)) | |
906 | SET_FOREACH(a, link->addresses) { | |
a2532c9d | 907 | if (!address_match_null(a, in)) |
d0009d92 YW |
908 | continue; |
909 | ||
910 | if (ret) | |
911 | *ret = a; | |
912 | return 0; | |
913 | } | |
914 | ||
915 | return -ENOENT; | |
5a8bcb67 LP |
916 | } |
917 | ||
b33dd04e YW |
918 | int address_get_harder(Link *link, const Address *in, Address **ret) { |
919 | Request *req; | |
920 | int r; | |
921 | ||
922 | assert(link); | |
923 | assert(in); | |
924 | ||
925 | if (address_get(link, in, ret) >= 0) | |
926 | return 0; | |
927 | ||
928 | r = address_get_request(link, in, &req); | |
929 | if (r < 0) | |
930 | return r; | |
931 | ||
932 | if (ret) | |
933 | *ret = ASSERT_PTR(req->userdata); | |
934 | ||
935 | return 0; | |
936 | } | |
937 | ||
5d003031 | 938 | int link_get_address(Link *link, int family, const union in_addr_union *address, unsigned char prefixlen, Address **ret) { |
390247d2 | 939 | Address *a; |
c5a0aeb3 | 940 | int r; |
5eec0a08 | 941 | |
c5a0aeb3 | 942 | assert(link); |
5d003031 | 943 | assert(IN_SET(family, AF_INET, AF_INET6)); |
c5a0aeb3 | 944 | assert(address); |
5eec0a08 | 945 | |
5d003031 YW |
946 | /* This find an Address object on the link which matches the given address and prefix length |
947 | * and does not have peer address. When the prefixlen is zero, then an Address object with an | |
948 | * arbitrary prefixlen will be returned. */ | |
998545a7 | 949 | |
42f8b6a8 | 950 | if (family == AF_INET6 || prefixlen != 0) { |
ebd96906 | 951 | _cleanup_(address_unrefp) Address *tmp = NULL; |
998545a7 | 952 | |
42f8b6a8 | 953 | /* In this case, we can use address_get(). */ |
998545a7 | 954 | |
390247d2 | 955 | r = address_new(&tmp); |
998545a7 YW |
956 | if (r < 0) |
957 | return r; | |
958 | ||
390247d2 YW |
959 | tmp->family = family; |
960 | tmp->in_addr = *address; | |
961 | tmp->prefixlen = prefixlen; | |
3b6a3bde | 962 | |
42f8b6a8 YW |
963 | r = address_get(link, tmp, &a); |
964 | if (r < 0) | |
965 | return r; | |
3b6a3bde | 966 | |
42f8b6a8 YW |
967 | if (family == AF_INET6) { |
968 | /* IPv6 addresses are managed without peer address and prefix length. Hence, we need | |
969 | * to check them explicitly. */ | |
970 | if (in_addr_is_set(family, &a->in_addr_peer)) | |
971 | return -ENOENT; | |
972 | if (prefixlen != 0 && a->prefixlen != prefixlen) | |
973 | return -ENOENT; | |
3b6a3bde YW |
974 | } |
975 | ||
42f8b6a8 YW |
976 | if (ret) |
977 | *ret = a; | |
390247d2 | 978 | |
42f8b6a8 | 979 | return 0; |
390247d2 YW |
980 | } |
981 | ||
982 | SET_FOREACH(a, link->addresses) { | |
983 | if (a->family != family) | |
984 | continue; | |
985 | ||
986 | if (!in_addr_equal(family, &a->in_addr, address)) | |
987 | continue; | |
988 | ||
989 | if (in_addr_is_set(family, &a->in_addr_peer)) | |
990 | continue; | |
991 | ||
992 | if (ret) | |
993 | *ret = a; | |
994 | ||
995 | return 0; | |
3b6a3bde | 996 | } |
390247d2 YW |
997 | |
998 | return -ENOENT; | |
998545a7 YW |
999 | } |
1000 | ||
77e9be1e | 1001 | int manager_get_address(Manager *manager, int family, const union in_addr_union *address, unsigned char prefixlen, Address **ret) { |
591bd5f3 | 1002 | Link *link; |
591bd5f3 YW |
1003 | |
1004 | assert(manager); | |
1005 | assert(IN_SET(family, AF_INET, AF_INET6)); | |
1006 | assert(address); | |
1007 | ||
77e9be1e YW |
1008 | HASHMAP_FOREACH(link, manager->links_by_index) { |
1009 | if (!IN_SET(link->state, LINK_STATE_CONFIGURING, LINK_STATE_CONFIGURED)) | |
1010 | continue; | |
1011 | ||
1012 | if (link_get_address(link, family, address, prefixlen, ret) >= 0) | |
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | return -ENOENT; | |
1017 | } | |
1018 | ||
1a4b0459 | 1019 | bool manager_has_address(Manager *manager, int family, const union in_addr_union *address) { |
77e9be1e YW |
1020 | Address *a; |
1021 | ||
1022 | assert(manager); | |
1023 | assert(IN_SET(family, AF_INET, AF_INET6)); | |
1024 | assert(address); | |
1025 | ||
1026 | if (manager_get_address(manager, family, address, 0, &a) < 0) | |
1027 | return false; | |
591bd5f3 | 1028 | |
1a4b0459 | 1029 | return address_is_ready(a); |
591bd5f3 YW |
1030 | } |
1031 | ||
16bc8635 | 1032 | const char* format_lifetime(char *buf, size_t l, usec_t lifetime_usec) { |
0fd97a25 | 1033 | assert(buf); |
a35f3128 | 1034 | assert(l > 4); |
0fd97a25 | 1035 | |
16bc8635 | 1036 | if (lifetime_usec == USEC_INFINITY) |
a35f3128 | 1037 | return "forever"; |
0fd97a25 | 1038 | |
a35f3128 ZJS |
1039 | sprintf(buf, "for "); |
1040 | /* format_timespan() never fails */ | |
ba4e0427 | 1041 | assert_se(format_timespan(buf + 4, l - 4, usec_sub_unsigned(lifetime_usec, now(CLOCK_BOOTTIME)), USEC_PER_SEC)); |
a35f3128 | 1042 | return buf; |
0fd97a25 YW |
1043 | } |
1044 | ||
24f50382 | 1045 | static void log_address_debug(const Address *address, const char *str, const Link *link) { |
84dbb3fd | 1046 | _cleanup_free_ char *state = NULL, *flags_str = NULL, *scope_str = NULL; |
7653a9dc | 1047 | |
24f50382 YW |
1048 | assert(address); |
1049 | assert(str); | |
1050 | assert(link); | |
1051 | ||
7653a9dc YW |
1052 | if (!DEBUG_LOGGING) |
1053 | return; | |
1054 | ||
3b6a3bde | 1055 | (void) network_config_state_to_string_alloc(address->state, &state); |
84dbb3fd ZJS |
1056 | |
1057 | const char *peer = in_addr_is_set(address->family, &address->in_addr_peer) ? | |
1058 | IN_ADDR_TO_STRING(address->family, &address->in_addr_peer) : NULL; | |
7653a9dc | 1059 | |
14044a41 YW |
1060 | const char *broadcast = (address->family == AF_INET && in4_addr_is_set(&address->broadcast)) ? |
1061 | IN4_ADDR_TO_STRING(&address->broadcast) : NULL; | |
1062 | ||
a2362484 | 1063 | (void) address_flags_to_string_alloc(address->flags, address->family, &flags_str); |
78ef25a5 | 1064 | (void) route_scope_to_string_alloc(address->scope, &scope_str); |
a2362484 | 1065 | |
14044a41 | 1066 | log_link_debug(link, "%s %s address (%s): %s%s%s/%u%s%s (valid %s, preferred %s), flags: %s, scope: %s%s%s", |
3b6a3bde | 1067 | str, strna(network_config_source_to_string(address->source)), strna(state), |
84dbb3fd ZJS |
1068 | IN_ADDR_TO_STRING(address->family, &address->in_addr), |
1069 | peer ? " peer " : "", strempty(peer), address->prefixlen, | |
14044a41 | 1070 | broadcast ? " broadcast " : "", strempty(broadcast), |
16bc8635 YW |
1071 | FORMAT_LIFETIME(address->lifetime_valid_usec), |
1072 | FORMAT_LIFETIME(address->lifetime_preferred_usec), | |
14044a41 YW |
1073 | strna(flags_str), strna(scope_str), |
1074 | address->family == AF_INET ? ", label: " : "", | |
1075 | address->family == AF_INET ? strna(address->label) : ""); | |
24f50382 YW |
1076 | } |
1077 | ||
a79a8d16 | 1078 | static int address_set_netlink_message(const Address *address, sd_netlink_message *m, Link *link) { |
d5e3b3eb | 1079 | uint32_t flags; |
a8481354 YW |
1080 | int r; |
1081 | ||
1082 | assert(address); | |
a79a8d16 | 1083 | assert(m); |
a8481354 YW |
1084 | assert(link); |
1085 | ||
a79a8d16 | 1086 | r = sd_rtnl_message_addr_set_prefixlen(m, address->prefixlen); |
a8481354 | 1087 | if (r < 0) |
a79a8d16 | 1088 | return r; |
a8481354 YW |
1089 | |
1090 | /* On remove, only IFA_F_MANAGETEMPADDR flag for IPv6 addresses are used. But anyway, set all | |
d5e3b3eb YW |
1091 | * flags except tentative flag here unconditionally. Without setting the flag, the template |
1092 | * addresses generated by kernel will not be removed automatically when the main address is | |
1093 | * removed. */ | |
1094 | flags = address->flags & ~IFA_F_TENTATIVE; | |
a79a8d16 | 1095 | r = sd_rtnl_message_addr_set_flags(m, flags & 0xff); |
a8481354 | 1096 | if (r < 0) |
a79a8d16 | 1097 | return r; |
a8481354 | 1098 | |
d5e3b3eb | 1099 | if ((flags & ~0xff) != 0) { |
a79a8d16 | 1100 | r = sd_netlink_message_append_u32(m, IFA_FLAGS, flags); |
a8481354 | 1101 | if (r < 0) |
a79a8d16 | 1102 | return r; |
a8481354 YW |
1103 | } |
1104 | ||
a79a8d16 | 1105 | r = netlink_message_append_in_addr_union(m, IFA_LOCAL, address->family, &address->in_addr); |
a8481354 | 1106 | if (r < 0) |
a79a8d16 | 1107 | return r; |
a8481354 YW |
1108 | |
1109 | return 0; | |
1110 | } | |
1111 | ||
56a995fe | 1112 | static int address_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, RemoveRequest *rreq) { |
5a07fa9d YW |
1113 | int r; |
1114 | ||
5a07fa9d | 1115 | assert(m); |
56a995fe | 1116 | assert(rreq); |
76c5a0f2 | 1117 | |
56a995fe YW |
1118 | Link *link = ASSERT_PTR(rreq->link); |
1119 | Address *address = ASSERT_PTR(rreq->userdata); | |
1120 | ||
1121 | if (link->state == LINK_STATE_LINGER) | |
5a07fa9d YW |
1122 | return 0; |
1123 | ||
1124 | r = sd_netlink_message_get_errno(m); | |
56a995fe YW |
1125 | if (r < 0) { |
1126 | log_link_message_full_errno(link, m, | |
1127 | (r == -EADDRNOTAVAIL || !address->link) ? LOG_DEBUG : LOG_WARNING, | |
1128 | r, "Could not drop address"); | |
1129 | ||
1130 | if (address->link) { | |
1131 | /* If the address cannot be removed, then assume the address is already removed. */ | |
1132 | log_address_debug(address, "Forgetting", link); | |
1133 | ||
1134 | Request *req; | |
1135 | if (address_get_request(link, address, &req) >= 0) | |
1136 | address_enter_removed(req->userdata); | |
1137 | ||
1138 | (void) address_drop(address); | |
1139 | } | |
1140 | } | |
5a07fa9d YW |
1141 | |
1142 | return 1; | |
1143 | } | |
1144 | ||
7f74b00a | 1145 | int address_remove(Address *address, Link *link) { |
a79a8d16 | 1146 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL; |
407fe036 TG |
1147 | int r; |
1148 | ||
1149 | assert(address); | |
4c701096 | 1150 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
7f74b00a YW |
1151 | assert(link); |
1152 | assert(link->ifindex > 0); | |
1153 | assert(link->manager); | |
1154 | assert(link->manager->rtnl); | |
407fe036 | 1155 | |
fe0acbf7 YW |
1156 | /* If the address is remembered, use the remembered object. */ |
1157 | (void) address_get(link, address, &address); | |
1158 | ||
24f50382 | 1159 | log_address_debug(address, "Removing", link); |
30226d27 | 1160 | |
a79a8d16 | 1161 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &m, RTM_DELADDR, |
151b9b96 | 1162 | link->ifindex, address->family); |
eb56eb9b | 1163 | if (r < 0) |
a79a8d16 | 1164 | return log_link_warning_errno(link, r, "Could not allocate RTM_DELADDR message: %m"); |
407fe036 | 1165 | |
a79a8d16 | 1166 | r = address_set_netlink_message(address, m, link); |
eb56eb9b | 1167 | if (r < 0) |
a79a8d16 | 1168 | return log_link_warning_errno(link, r, "Could not set netlink attributes: %m"); |
407fe036 | 1169 | |
56a995fe | 1170 | r = link_remove_request_add(link, address, address, link->manager->rtnl, m, address_remove_handler); |
eb56eb9b | 1171 | if (r < 0) |
56a995fe | 1172 | return log_link_warning_errno(link, r, "Could not queue rtnetlink message: %m"); |
563c69c6 | 1173 | |
3b6a3bde | 1174 | address_enter_removing(address); |
613d65d8 YW |
1175 | |
1176 | /* The operational state is determined by address state and carrier state. Hence, if we remove | |
1177 | * an address, the operational state may be changed. */ | |
1178 | link_update_operstate(link, true); | |
407fe036 TG |
1179 | return 0; |
1180 | } | |
1181 | ||
f22b586a | 1182 | int address_remove_and_cancel(Address *address, Link *link) { |
7036d472 | 1183 | _cleanup_(request_unrefp) Request *req = NULL; |
f22b586a | 1184 | bool waiting = false; |
d4b76314 | 1185 | |
f22b586a YW |
1186 | assert(address); |
1187 | assert(link); | |
1188 | assert(link->manager); | |
d4b76314 | 1189 | |
f22b586a YW |
1190 | /* If the address is remembered by the link, then use the remembered object. */ |
1191 | (void) address_get(link, address, &address); | |
d4b76314 | 1192 | |
f22b586a YW |
1193 | /* Cancel the request for the address. If the request is already called but we have not received the |
1194 | * notification about the request, then explicitly remove the address. */ | |
1195 | if (address_get_request(link, address, &req) >= 0) { | |
7036d472 | 1196 | request_ref(req); /* avoid the request freed by request_detach() */ |
f22b586a | 1197 | waiting = req->waiting_reply; |
b9b5096e | 1198 | request_detach(req); |
f22b586a YW |
1199 | address_cancel_requesting(address); |
1200 | } | |
1201 | ||
1202 | /* If we know the address will come or already exists, remove it. */ | |
1203 | if (waiting || (address->link && address_exists(address))) | |
1204 | return address_remove(address, link); | |
1205 | ||
1206 | return 0; | |
d4b76314 YW |
1207 | } |
1208 | ||
3def8850 | 1209 | bool link_address_is_dynamic(const Link *link, const Address *address) { |
f8f2f880 YW |
1210 | Route *route; |
1211 | ||
1212 | assert(link); | |
8d01e44c | 1213 | assert(link->manager); |
f8f2f880 YW |
1214 | assert(address); |
1215 | ||
16bc8635 | 1216 | if (address->lifetime_preferred_usec != USEC_INFINITY) |
f8f2f880 YW |
1217 | return true; |
1218 | ||
1219 | /* Even when the address is leased from a DHCP server, networkd assign the address | |
1220 | * without lifetime when KeepConfiguration=dhcp. So, let's check that we have | |
1221 | * corresponding routes with RTPROT_DHCP. */ | |
8d01e44c | 1222 | SET_FOREACH(route, link->manager->routes) { |
3b6a3bde YW |
1223 | if (route->source != NETWORK_CONFIG_SOURCE_FOREIGN) |
1224 | continue; | |
1225 | ||
f974f17a YW |
1226 | /* The route is not assigned yet, or already removed. Ignoring. */ |
1227 | if (!route_exists(route)) | |
1228 | continue; | |
1229 | ||
f8f2f880 YW |
1230 | if (route->protocol != RTPROT_DHCP) |
1231 | continue; | |
1232 | ||
8d01e44c YW |
1233 | if (route->nexthop.ifindex != link->ifindex) |
1234 | continue; | |
1235 | ||
f8f2f880 YW |
1236 | if (address->family != route->family) |
1237 | continue; | |
1238 | ||
1239 | if (in_addr_equal(address->family, &address->in_addr, &route->prefsrc)) | |
1240 | return true; | |
1241 | } | |
1242 | ||
1243 | return false; | |
1244 | } | |
1245 | ||
b9bf3f22 | 1246 | int link_drop_ipv6ll_addresses(Link *link) { |
51f5dfd8 | 1247 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; |
51f5dfd8 YW |
1248 | int r; |
1249 | ||
1250 | assert(link); | |
1251 | assert(link->manager); | |
1252 | assert(link->manager->rtnl); | |
1253 | ||
b9bf3f22 YW |
1254 | /* IPv6LL address may be in the tentative state, and in that case networkd has not received it. |
1255 | * So, we need to dump all IPv6 addresses. */ | |
1256 | ||
bd7e0a3f | 1257 | if (link_may_have_ipv6ll(link, /* check_multicast = */ false)) |
b9bf3f22 YW |
1258 | return 0; |
1259 | ||
c31298be | 1260 | r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_GETADDR, link->ifindex, AF_INET6); |
51f5dfd8 YW |
1261 | if (r < 0) |
1262 | return r; | |
1263 | ||
24c0f385 | 1264 | r = sd_netlink_message_set_request_dump(req, true); |
f318f643 YW |
1265 | if (r < 0) |
1266 | return r; | |
1267 | ||
51f5dfd8 YW |
1268 | r = sd_netlink_call(link->manager->rtnl, req, 0, &reply); |
1269 | if (r < 0) | |
1270 | return r; | |
1271 | ||
cda7fc8d | 1272 | for (sd_netlink_message *addr = reply; addr; addr = sd_netlink_message_next(addr)) { |
ebd96906 | 1273 | _cleanup_(address_unrefp) Address *a = NULL; |
b9bf3f22 YW |
1274 | unsigned char flags, prefixlen; |
1275 | struct in6_addr address; | |
51f5dfd8 YW |
1276 | int ifindex; |
1277 | ||
c31298be YW |
1278 | /* NETLINK_GET_STRICT_CHK socket option is supported since kernel 4.20. To support |
1279 | * older kernels, we need to check ifindex here. */ | |
51f5dfd8 YW |
1280 | r = sd_rtnl_message_addr_get_ifindex(addr, &ifindex); |
1281 | if (r < 0) { | |
b9bf3f22 | 1282 | log_link_debug_errno(link, r, "rtnl: received address message without valid ifindex, ignoring: %m"); |
51f5dfd8 YW |
1283 | continue; |
1284 | } else if (link->ifindex != ifindex) | |
1285 | continue; | |
1286 | ||
1287 | r = sd_rtnl_message_addr_get_flags(addr, &flags); | |
1288 | if (r < 0) { | |
b9bf3f22 YW |
1289 | log_link_debug_errno(link, r, "rtnl: received address message without valid flags, ignoring: %m"); |
1290 | continue; | |
1291 | } | |
1292 | ||
1293 | r = sd_rtnl_message_addr_get_prefixlen(addr, &prefixlen); | |
1294 | if (r < 0) { | |
1295 | log_link_debug_errno(link, r, "rtnl: received address message without prefixlen, ignoring: %m"); | |
51f5dfd8 | 1296 | continue; |
b9bf3f22 YW |
1297 | } |
1298 | ||
1299 | if (sd_netlink_message_read_in6_addr(addr, IFA_LOCAL, NULL) >= 0) | |
1300 | /* address with peer, ignoring. */ | |
51f5dfd8 YW |
1301 | continue; |
1302 | ||
b9bf3f22 YW |
1303 | r = sd_netlink_message_read_in6_addr(addr, IFA_ADDRESS, &address); |
1304 | if (r < 0) { | |
1305 | log_link_debug_errno(link, r, "rtnl: received address message without valid address, ignoring: %m"); | |
1306 | continue; | |
1307 | } | |
1308 | ||
1309 | if (!in6_addr_is_link_local(&address)) | |
1310 | continue; | |
1311 | ||
1312 | r = address_new(&a); | |
1313 | if (r < 0) | |
1314 | return -ENOMEM; | |
1315 | ||
1316 | a->family = AF_INET6; | |
1317 | a->in_addr.in6 = address; | |
1318 | a->prefixlen = prefixlen; | |
1319 | a->flags = flags; | |
1320 | ||
f1b73dbb | 1321 | r = address_remove(a, link); |
b9bf3f22 YW |
1322 | if (r < 0) |
1323 | return r; | |
51f5dfd8 YW |
1324 | } |
1325 | ||
1326 | return 0; | |
1327 | } | |
1328 | ||
f8f2f880 YW |
1329 | int link_drop_foreign_addresses(Link *link) { |
1330 | Address *address; | |
1339b950 | 1331 | int r = 0; |
f8f2f880 YW |
1332 | |
1333 | assert(link); | |
3b6a3bde | 1334 | assert(link->network); |
f8f2f880 | 1335 | |
3b6a3bde YW |
1336 | /* First, mark all addresses. */ |
1337 | SET_FOREACH(address, link->addresses) { | |
b9bf3f22 | 1338 | /* We consider IPv6LL addresses to be managed by the kernel, or dropped in link_drop_ipv6ll_addresses() */ |
ecedc48b | 1339 | if (address->family == AF_INET6 && in6_addr_is_link_local(&address->in_addr.in6)) |
f8f2f880 YW |
1340 | continue; |
1341 | ||
b69bfa43 YW |
1342 | /* Do not remove localhost address (127.0.0.1 and ::1) */ |
1343 | if (link->flags & IFF_LOOPBACK && in_addr_is_localhost_one(address->family, &address->in_addr) > 0) | |
1344 | continue; | |
1345 | ||
3b6a3bde YW |
1346 | /* Ignore addresses we configured. */ |
1347 | if (address->source != NETWORK_CONFIG_SOURCE_FOREIGN) | |
1348 | continue; | |
1349 | ||
1350 | /* Ignore addresses not assigned yet or already removing. */ | |
1351 | if (!address_exists(address)) | |
1352 | continue; | |
1353 | ||
a71c5c44 YW |
1354 | /* link_address_is_dynamic() is slightly heavy. Let's call the function only when KeepConfiguration= is set. */ |
1355 | if (IN_SET(link->network->keep_configuration, KEEP_CONFIGURATION_DHCP, KEEP_CONFIGURATION_STATIC) && | |
1356 | link_address_is_dynamic(link, address) == (link->network->keep_configuration == KEEP_CONFIGURATION_DHCP)) | |
f8f2f880 YW |
1357 | continue; |
1358 | ||
3b6a3bde YW |
1359 | address_mark(address); |
1360 | } | |
1361 | ||
1362 | /* Then, unmark requested addresses. */ | |
1363 | ORDERED_HASHMAP_FOREACH(address, link->network->addresses_by_section) { | |
1364 | Address *existing; | |
1365 | ||
d0009d92 YW |
1366 | if (address_get(link, address, &existing) < 0) |
1367 | continue; | |
1368 | ||
b5aefc90 | 1369 | if (!address_can_update(existing, address)) |
d0009d92 YW |
1370 | continue; |
1371 | ||
1372 | /* Found matching static configuration. Keep the existing address. */ | |
1373 | address_unmark(existing); | |
3b6a3bde YW |
1374 | } |
1375 | ||
1376 | /* Finally, remove all marked addresses. */ | |
1377 | SET_FOREACH(address, link->addresses) { | |
1378 | if (!address_is_marked(address)) | |
1379 | continue; | |
1380 | ||
7f74b00a | 1381 | RET_GATHER(r, address_remove(address, link)); |
f8f2f880 YW |
1382 | } |
1383 | ||
1384 | return r; | |
1385 | } | |
1386 | ||
e09b7588 | 1387 | int link_drop_static_addresses(Link *link) { |
3b6a3bde | 1388 | Address *address; |
1339b950 | 1389 | int r = 0; |
d7fbb9f5 YW |
1390 | |
1391 | assert(link); | |
1392 | ||
1393 | SET_FOREACH(address, link->addresses) { | |
e09b7588 YW |
1394 | /* Remove only static addresses here. Dynamic addresses will be removed e.g. on lease |
1395 | * expiration or stopping the DHCP client. */ | |
1396 | if (address->source != NETWORK_CONFIG_SOURCE_STATIC) | |
3b6a3bde YW |
1397 | continue; |
1398 | ||
a0e99a37 YW |
1399 | /* Ignore addresses not assigned yet or already removing. */ |
1400 | if (!address_exists(address)) | |
d7fbb9f5 YW |
1401 | continue; |
1402 | ||
7f74b00a | 1403 | RET_GATHER(r, address_remove(address, link)); |
d7fbb9f5 YW |
1404 | } |
1405 | ||
1406 | return r; | |
1407 | } | |
1408 | ||
b4564f4e YW |
1409 | void link_foreignize_addresses(Link *link) { |
1410 | Address *address; | |
1411 | ||
1412 | assert(link); | |
1413 | ||
1414 | SET_FOREACH(address, link->addresses) | |
1415 | address->source = NETWORK_CONFIG_SOURCE_FOREIGN; | |
1416 | } | |
1417 | ||
5a07fa9d YW |
1418 | int address_configure_handler_internal(sd_netlink *rtnl, sd_netlink_message *m, Link *link, const char *error_msg) { |
1419 | int r; | |
1420 | ||
1421 | assert(rtnl); | |
1422 | assert(m); | |
1423 | assert(link); | |
1424 | assert(error_msg); | |
1425 | ||
5a07fa9d YW |
1426 | r = sd_netlink_message_get_errno(m); |
1427 | if (r < 0 && r != -EEXIST) { | |
1428 | log_link_message_warning_errno(link, m, r, error_msg); | |
1429 | link_enter_failed(link); | |
1430 | return 0; | |
3a1dfdb4 | 1431 | } |
5a07fa9d YW |
1432 | |
1433 | return 1; | |
1434 | } | |
1435 | ||
b9e4ec50 | 1436 | static int address_configure(const Address *address, const struct ifa_cacheinfo *c, Link *link, Request *req) { |
a79a8d16 | 1437 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL; |
7b3a7581 | 1438 | int r; |
f579559b | 1439 | |
c166a070 | 1440 | assert(address); |
4c701096 | 1441 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
b9e4ec50 | 1442 | assert(c); |
c166a070 TG |
1443 | assert(link); |
1444 | assert(link->ifindex > 0); | |
f882c247 | 1445 | assert(link->manager); |
c166a070 | 1446 | assert(link->manager->rtnl); |
54ff39f7 | 1447 | assert(req); |
f882c247 | 1448 | |
c0c04a4b | 1449 | log_address_debug(address, "Configuring", link); |
1b566071 | 1450 | |
a79a8d16 | 1451 | r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &m, link->ifindex, address->family); |
eb56eb9b | 1452 | if (r < 0) |
a79a8d16 | 1453 | return r; |
f579559b | 1454 | |
a79a8d16 | 1455 | r = address_set_netlink_message(address, m, link); |
eb56eb9b | 1456 | if (r < 0) |
a8481354 | 1457 | return r; |
851c9f82 | 1458 | |
a79a8d16 | 1459 | r = sd_rtnl_message_addr_set_scope(m, address->scope); |
eb56eb9b | 1460 | if (r < 0) |
a79a8d16 | 1461 | return r; |
5a723174 | 1462 | |
f35aecc4 | 1463 | if (address->family == AF_INET6 || in_addr_is_set(address->family, &address->in_addr_peer)) { |
a79a8d16 | 1464 | r = netlink_message_append_in_addr_union(m, IFA_ADDRESS, address->family, &address->in_addr_peer); |
eb56eb9b | 1465 | if (r < 0) |
a79a8d16 | 1466 | return r; |
e680486d | 1467 | } else if (in4_addr_is_set(&address->broadcast)) { |
a79a8d16 | 1468 | r = sd_netlink_message_append_in_addr(m, IFA_BROADCAST, &address->broadcast); |
66e0bb33 | 1469 | if (r < 0) |
a79a8d16 | 1470 | return r; |
f579559b TG |
1471 | } |
1472 | ||
2a236f9f | 1473 | if (address->family == AF_INET && address->label) { |
a79a8d16 | 1474 | r = sd_netlink_message_append_string(m, IFA_LABEL, address->label); |
eb56eb9b | 1475 | if (r < 0) |
a79a8d16 | 1476 | return r; |
f579559b TG |
1477 | } |
1478 | ||
b9e4ec50 | 1479 | r = sd_netlink_message_append_cache_info(m, IFA_CACHEINFO, c); |
eb56eb9b | 1480 | if (r < 0) |
a79a8d16 | 1481 | return r; |
68ceb9df | 1482 | |
a79a8d16 | 1483 | r = sd_netlink_message_append_u32(m, IFA_RT_PRIORITY, address->route_metric); |
c4ff0629 | 1484 | if (r < 0) |
a79a8d16 | 1485 | return r; |
c4ff0629 | 1486 | |
80d62d4f | 1487 | return request_call_netlink_async(link->manager->rtnl, m, req); |
f579559b TG |
1488 | } |
1489 | ||
dbf66cd1 YW |
1490 | static int address_acquire(Link *link, const Address *address, union in_addr_union *ret) { |
1491 | union in_addr_union a; | |
1492 | int r; | |
1493 | ||
8bed7c55 YW |
1494 | assert(link); |
1495 | assert(address); | |
dbf66cd1 | 1496 | assert(ret); |
8bed7c55 | 1497 | |
7a89aeb1 YW |
1498 | r = address_acquire_from_dhcp_server_leases_file(link, address, ret); |
1499 | if (r != -ENOENT) | |
1500 | return r; | |
1501 | ||
dbf66cd1 YW |
1502 | r = address_pool_acquire(link->manager, address->family, address->prefixlen, &a); |
1503 | if (r < 0) | |
1504 | return r; | |
1505 | if (r == 0) | |
1506 | return -EBUSY; | |
8bed7c55 | 1507 | |
dbf66cd1 YW |
1508 | /* Pick first address in range for ourselves. */ |
1509 | if (address->family == AF_INET) | |
1510 | a.in.s_addr |= htobe32(1); | |
1511 | else if (address->family == AF_INET6) | |
1512 | a.in6.s6_addr[15] |= 1; | |
1513 | else | |
1514 | assert_not_reached(); | |
8bed7c55 | 1515 | |
dbf66cd1 YW |
1516 | *ret = a; |
1517 | return 0; | |
1518 | } | |
8bed7c55 | 1519 | |
dbf66cd1 YW |
1520 | static int address_requeue_request(Request *req, Link *link, const Address *address) { |
1521 | int r; | |
1522 | ||
1523 | assert(req); | |
1524 | assert(link); | |
1525 | assert(link->manager); | |
1526 | assert(link->network); | |
1527 | assert(address); | |
1528 | ||
1529 | /* Something useful was configured? just use it */ | |
1530 | if (in_addr_is_set(address->family, &address->in_addr)) | |
1531 | return 0; | |
1532 | ||
1533 | /* The address is configured to be 0.0.0.0 or [::] by the user? | |
1534 | * Then let's acquire something more useful. */ | |
1535 | union in_addr_union a; | |
1536 | r = address_acquire(link, address, &a); | |
1537 | if (r < 0) | |
1538 | return r; | |
1539 | ||
1540 | _cleanup_(address_unrefp) Address *tmp = NULL; | |
1541 | r = address_dup(address, &tmp); | |
1542 | if (r < 0) | |
1543 | return r; | |
1544 | ||
1545 | tmp->in_addr = a; | |
1546 | ||
1547 | r = link_requeue_request(link, req, tmp, NULL); | |
1548 | if (r < 0) | |
1549 | return r; | |
1550 | if (r == 0) | |
1551 | return -EEXIST; /* Already queued?? Strange... */ | |
1552 | ||
1553 | TAKE_PTR(tmp); | |
1554 | return 1; /* A new request is queued. it is not necessary to process this request anymore. */ | |
8bed7c55 YW |
1555 | } |
1556 | ||
09d09207 | 1557 | static int address_process_request(Request *req, Link *link, Address *address) { |
60f4cfe4 | 1558 | Address *existing; |
b9e4ec50 | 1559 | struct ifa_cacheinfo c; |
8bed7c55 YW |
1560 | int r; |
1561 | ||
1562 | assert(req); | |
ff51134c YW |
1563 | assert(link); |
1564 | assert(address); | |
8bed7c55 | 1565 | |
dbf66cd1 YW |
1566 | if (!link_is_ready_to_configure(link, false)) |
1567 | return 0; | |
1568 | ||
1569 | /* Refuse adding more than the limit */ | |
1570 | if (set_size(link->addresses) >= ADDRESSES_PER_LINK_MAX) | |
1571 | return 0; | |
1572 | ||
1573 | r = address_requeue_request(req, link, address); | |
1574 | if (r == -EBUSY) | |
1575 | return 0; | |
1576 | if (r != 0) | |
1577 | return r; | |
1578 | ||
1579 | address_set_broadcast(address, link); | |
1580 | ||
1581 | r = ipv4acd_configure(link, address); | |
1582 | if (r < 0) | |
1583 | return r; | |
1584 | ||
1585 | if (!ipv4acd_bound(link, address)) | |
8bed7c55 YW |
1586 | return 0; |
1587 | ||
b9e4ec50 YW |
1588 | address_set_cinfo(link->manager, address, &c); |
1589 | if (c.ifa_valid == 0) { | |
1590 | log_link_debug(link, "Refuse to configure %s address %s, as its valid lifetime is zero.", | |
1591 | network_config_source_to_string(address->source), | |
1592 | IN_ADDR_PREFIX_TO_STRING(address->family, &address->in_addr, address->prefixlen)); | |
0a0c2672 | 1593 | |
b9e4ec50 | 1594 | address_cancel_requesting(address); |
0a0c2672 | 1595 | if (address_get(link, address, &existing) >= 0) |
d6b64f7a | 1596 | address_cancel_requesting(existing); |
b9e4ec50 YW |
1597 | return 1; |
1598 | } | |
1599 | ||
1600 | r = address_configure(address, &c, link, req); | |
8bed7c55 YW |
1601 | if (r < 0) |
1602 | return log_link_warning_errno(link, r, "Failed to configure address: %m"); | |
1603 | ||
1604 | address_enter_configuring(address); | |
0a0c2672 YW |
1605 | if (address_get(link, address, &existing) >= 0) |
1606 | address_enter_configuring(existing); | |
1607 | ||
8bed7c55 YW |
1608 | return 1; |
1609 | } | |
1610 | ||
76c5a0f2 YW |
1611 | int link_request_address( |
1612 | Link *link, | |
f60e6558 | 1613 | const Address *address, |
76c5a0f2 | 1614 | unsigned *message_counter, |
80d62d4f | 1615 | address_netlink_handler_t netlink_handler, |
76c5a0f2 YW |
1616 | Request **ret) { |
1617 | ||
ebd96906 | 1618 | _cleanup_(address_unrefp) Address *tmp = NULL; |
0a0c2672 | 1619 | Address *existing = NULL; |
c0c04a4b YW |
1620 | int r; |
1621 | ||
76c5a0f2 YW |
1622 | assert(link); |
1623 | assert(address); | |
3b6a3bde | 1624 | assert(address->source != NETWORK_CONFIG_SOURCE_FOREIGN); |
76c5a0f2 | 1625 | |
0a0c2672 YW |
1626 | if (address->lifetime_valid_usec == 0) |
1627 | /* The requested address is outdated. Let's ignore the request. */ | |
1628 | return 0; | |
af2aea8b | 1629 | |
dbf66cd1 YW |
1630 | if (address_get_request(link, address, NULL) >= 0) |
1631 | return 0; /* already requested, skipping. */ | |
303dfa73 | 1632 | |
dbf66cd1 YW |
1633 | r = address_dup(address, &tmp); |
1634 | if (r < 0) | |
1635 | return log_oom(); | |
9684a8de | 1636 | |
dbf66cd1 | 1637 | if (address_get(link, address, &existing) >= 0) { |
0a0c2672 YW |
1638 | /* Copy already assigned address when it is requested as a null address. */ |
1639 | if (address_is_static_null(address)) | |
1640 | tmp->in_addr = existing->in_addr; | |
9684a8de | 1641 | |
0a0c2672 YW |
1642 | /* Copy state for logging below. */ |
1643 | tmp->state = existing->state; | |
c0c04a4b YW |
1644 | } |
1645 | ||
0a0c2672 | 1646 | log_address_debug(tmp, "Requesting", link); |
09d09207 | 1647 | r = link_queue_request_safe(link, REQUEST_TYPE_ADDRESS, |
0a0c2672 | 1648 | tmp, |
ebd96906 | 1649 | address_unref, |
4da252c5 YW |
1650 | address_hash_func, |
1651 | address_compare_func, | |
09d09207 YW |
1652 | address_process_request, |
1653 | message_counter, netlink_handler, ret); | |
c0c04a4b YW |
1654 | if (r < 0) |
1655 | return log_link_warning_errno(link, r, "Failed to request address: %m"); | |
3b6a3bde YW |
1656 | if (r == 0) |
1657 | return 0; | |
1658 | ||
0a0c2672 YW |
1659 | address_enter_requesting(tmp); |
1660 | if (existing) | |
1661 | address_enter_requesting(existing); | |
3b6a3bde | 1662 | |
0a0c2672 | 1663 | TAKE_PTR(tmp); |
3b6a3bde | 1664 | return 1; |
76c5a0f2 YW |
1665 | } |
1666 | ||
80d62d4f | 1667 | static int static_address_handler(sd_netlink *rtnl, sd_netlink_message *m, Request *req, Link *link, Address *address) { |
e1e4cd1e YW |
1668 | int r; |
1669 | ||
1670 | assert(link); | |
e1e4cd1e YW |
1671 | |
1672 | r = address_configure_handler_internal(rtnl, m, link, "Failed to set static address"); | |
1673 | if (r <= 0) | |
1674 | return r; | |
1675 | ||
1676 | if (link->static_address_messages == 0) { | |
1677 | log_link_debug(link, "Addresses set"); | |
1678 | link->static_addresses_configured = true; | |
1679 | link_check_ready(link); | |
1680 | } | |
1681 | ||
1682 | return 1; | |
1683 | } | |
1684 | ||
f60e6558 | 1685 | int link_request_static_address(Link *link, const Address *address) { |
8c29f484 YW |
1686 | assert(link); |
1687 | assert(address); | |
3b6a3bde | 1688 | assert(address->source == NETWORK_CONFIG_SOURCE_STATIC); |
8c29f484 | 1689 | |
f60e6558 | 1690 | return link_request_address(link, address, &link->static_address_messages, |
3b6a3bde | 1691 | static_address_handler, NULL); |
8c29f484 YW |
1692 | } |
1693 | ||
76c5a0f2 YW |
1694 | int link_request_static_addresses(Link *link) { |
1695 | Address *a; | |
682c65b0 YW |
1696 | int r; |
1697 | ||
1698 | assert(link); | |
1699 | assert(link->network); | |
1700 | ||
76c5a0f2 | 1701 | link->static_addresses_configured = false; |
682c65b0 | 1702 | |
76c5a0f2 | 1703 | ORDERED_HASHMAP_FOREACH(a, link->network->addresses_by_section) { |
f60e6558 | 1704 | r = link_request_static_address(link, a); |
682c65b0 YW |
1705 | if (r < 0) |
1706 | return r; | |
1707 | } | |
1708 | ||
3b6a3bde YW |
1709 | r = link_request_radv_addresses(link); |
1710 | if (r < 0) | |
1711 | return r; | |
0017ba31 | 1712 | |
76c5a0f2 YW |
1713 | if (link->static_address_messages == 0) { |
1714 | link->static_addresses_configured = true; | |
1715 | link_check_ready(link); | |
682c65b0 YW |
1716 | } else { |
1717 | log_link_debug(link, "Setting addresses"); | |
1718 | link_set_state(link, LINK_STATE_CONFIGURING); | |
1719 | } | |
1720 | ||
1721 | return 0; | |
1722 | } | |
1723 | ||
e1fc2c43 | 1724 | int manager_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message, Manager *m) { |
ebd96906 | 1725 | _cleanup_(address_unrefp) Address *tmp = NULL; |
16bc8635 | 1726 | struct ifa_cacheinfo cinfo; |
a3a25d01 | 1727 | Link *link; |
e1fc2c43 | 1728 | uint16_t type; |
e1fc2c43 | 1729 | Address *address = NULL; |
0a0c2672 | 1730 | Request *req = NULL; |
fc35a9f8 | 1731 | bool is_new = false, update_dhcp4; |
fe841414 | 1732 | int ifindex, r; |
e1fc2c43 YW |
1733 | |
1734 | assert(rtnl); | |
1735 | assert(message); | |
1736 | assert(m); | |
1737 | ||
1738 | if (sd_netlink_message_is_error(message)) { | |
1739 | r = sd_netlink_message_get_errno(message); | |
1740 | if (r < 0) | |
1741 | log_message_warning_errno(message, r, "rtnl: failed to receive address message, ignoring"); | |
1742 | ||
1743 | return 0; | |
1744 | } | |
1745 | ||
1746 | r = sd_netlink_message_get_type(message, &type); | |
1747 | if (r < 0) { | |
1748 | log_warning_errno(r, "rtnl: could not get message type, ignoring: %m"); | |
1749 | return 0; | |
1750 | } else if (!IN_SET(type, RTM_NEWADDR, RTM_DELADDR)) { | |
1751 | log_warning("rtnl: received unexpected message type %u when processing address, ignoring.", type); | |
1752 | return 0; | |
1753 | } | |
1754 | ||
1755 | r = sd_rtnl_message_addr_get_ifindex(message, &ifindex); | |
1756 | if (r < 0) { | |
1757 | log_warning_errno(r, "rtnl: could not get ifindex from message, ignoring: %m"); | |
1758 | return 0; | |
1759 | } else if (ifindex <= 0) { | |
1760 | log_warning("rtnl: received address message with invalid ifindex %d, ignoring.", ifindex); | |
1761 | return 0; | |
1762 | } | |
1763 | ||
6eab614d | 1764 | r = link_get_by_index(m, ifindex, &link); |
a3a25d01 | 1765 | if (r < 0) { |
e1fc2c43 YW |
1766 | /* when enumerating we might be out of sync, but we will get the address again, so just |
1767 | * ignore it */ | |
1768 | if (!m->enumerating) | |
1769 | log_warning("rtnl: received address for link '%d' we don't know about, ignoring.", ifindex); | |
1770 | return 0; | |
1771 | } | |
1772 | ||
fe841414 YW |
1773 | r = address_new(&tmp); |
1774 | if (r < 0) | |
1775 | return log_oom(); | |
1776 | ||
3c283289 YW |
1777 | /* First, read minimal information to make address_get() work below. */ |
1778 | ||
fe841414 | 1779 | r = sd_rtnl_message_addr_get_family(message, &tmp->family); |
e1fc2c43 YW |
1780 | if (r < 0) { |
1781 | log_link_warning(link, "rtnl: received address message without family, ignoring."); | |
1782 | return 0; | |
fe841414 YW |
1783 | } else if (!IN_SET(tmp->family, AF_INET, AF_INET6)) { |
1784 | log_link_debug(link, "rtnl: received address message with invalid family '%i', ignoring.", tmp->family); | |
e1fc2c43 YW |
1785 | return 0; |
1786 | } | |
1787 | ||
fe841414 | 1788 | r = sd_rtnl_message_addr_get_prefixlen(message, &tmp->prefixlen); |
e1fc2c43 | 1789 | if (r < 0) { |
9a0ad16b | 1790 | log_link_warning_errno(link, r, "rtnl: received address message without prefixlen, ignoring: %m"); |
e1fc2c43 YW |
1791 | return 0; |
1792 | } | |
1793 | ||
fe841414 | 1794 | switch (tmp->family) { |
e1fc2c43 | 1795 | case AF_INET: |
fe841414 | 1796 | r = sd_netlink_message_read_in_addr(message, IFA_LOCAL, &tmp->in_addr.in); |
e1fc2c43 YW |
1797 | if (r < 0) { |
1798 | log_link_warning_errno(link, r, "rtnl: received address message without valid address, ignoring: %m"); | |
1799 | return 0; | |
1800 | } | |
1801 | ||
fe841414 YW |
1802 | r = sd_netlink_message_read_in_addr(message, IFA_ADDRESS, &tmp->in_addr_peer.in); |
1803 | if (r < 0 && r != -ENODATA) { | |
1804 | log_link_warning_errno(link, r, "rtnl: could not get peer address from address message, ignoring: %m"); | |
1805 | return 0; | |
1806 | } else if (r >= 0) { | |
1807 | if (in4_addr_equal(&tmp->in_addr.in, &tmp->in_addr_peer.in)) | |
1808 | tmp->in_addr_peer = IN_ADDR_NULL; | |
fe841414 YW |
1809 | } |
1810 | ||
e1fc2c43 YW |
1811 | break; |
1812 | ||
1813 | case AF_INET6: | |
fe841414 YW |
1814 | r = sd_netlink_message_read_in6_addr(message, IFA_LOCAL, &tmp->in_addr.in6); |
1815 | if (r >= 0) { | |
1816 | /* Have peer address. */ | |
1817 | r = sd_netlink_message_read_in6_addr(message, IFA_ADDRESS, &tmp->in_addr_peer.in6); | |
1818 | if (r < 0) { | |
1819 | log_link_warning_errno(link, r, "rtnl: could not get peer address from address message, ignoring: %m"); | |
1820 | return 0; | |
1821 | } | |
fe841414 YW |
1822 | } else if (r == -ENODATA) { |
1823 | /* Does not have peer address. */ | |
1824 | r = sd_netlink_message_read_in6_addr(message, IFA_ADDRESS, &tmp->in_addr.in6); | |
1825 | if (r < 0) { | |
1826 | log_link_warning_errno(link, r, "rtnl: received address message without valid address, ignoring: %m"); | |
1827 | return 0; | |
1828 | } | |
1829 | } else { | |
1830 | log_link_warning_errno(link, r, "rtnl: could not get local address from address message, ignoring: %m"); | |
e1fc2c43 YW |
1831 | return 0; |
1832 | } | |
1833 | ||
1834 | break; | |
1835 | ||
1836 | default: | |
04499a70 | 1837 | assert_not_reached(); |
e1fc2c43 YW |
1838 | } |
1839 | ||
fc35a9f8 YW |
1840 | update_dhcp4 = tmp->family == AF_INET6; |
1841 | ||
0a0c2672 | 1842 | /* Then, find the managed Address and Request objects corresponding to the received address. */ |
fe841414 | 1843 | (void) address_get(link, tmp, &address); |
0a0c2672 | 1844 | (void) address_get_request(link, tmp, &req); |
e1fc2c43 | 1845 | |
3c283289 | 1846 | if (type == RTM_DELADDR) { |
3b6a3bde | 1847 | if (address) { |
3c283289 | 1848 | address_enter_removed(address); |
0a0c2672 | 1849 | log_address_debug(address, "Forgetting removed", link); |
3c283289 YW |
1850 | (void) address_drop(address); |
1851 | } else | |
1852 | log_address_debug(tmp, "Kernel removed unknown", link); | |
3b6a3bde | 1853 | |
0a0c2672 YW |
1854 | if (req) |
1855 | address_enter_removed(req->userdata); | |
1856 | ||
fc35a9f8 | 1857 | goto finalize; |
3c283289 | 1858 | } |
3b6a3bde | 1859 | |
3c283289 YW |
1860 | if (!address) { |
1861 | /* If we did not know the address, then save it. */ | |
ebd96906 | 1862 | r = address_attach(link, tmp); |
3c283289 | 1863 | if (r < 0) { |
e924dc59 | 1864 | log_link_warning_errno(link, r, "Failed to save received address %s, ignoring: %m", |
3c283289 YW |
1865 | IN_ADDR_PREFIX_TO_STRING(tmp->family, &tmp->in_addr, tmp->prefixlen)); |
1866 | return 0; | |
e1fc2c43 | 1867 | } |
ebd96906 | 1868 | address = tmp; |
e1fc2c43 | 1869 | |
3c283289 | 1870 | is_new = true; |
e1fc2c43 | 1871 | |
3c283289 YW |
1872 | } else { |
1873 | /* Otherwise, update the managed Address object with the netlink notification. */ | |
1874 | address->prefixlen = tmp->prefixlen; | |
1875 | address->in_addr_peer = tmp->in_addr_peer; | |
1876 | } | |
e1fc2c43 | 1877 | |
0a0c2672 YW |
1878 | /* Also update information that cannot be obtained through netlink notification. */ |
1879 | if (req && req->waiting_reply) { | |
1880 | Address *a = ASSERT_PTR(req->userdata); | |
1881 | ||
1882 | address->source = a->source; | |
1883 | address->provider = a->provider; | |
1884 | (void) free_and_strdup_warn(&address->netlabel, a->netlabel); | |
fc289dd0 TM |
1885 | nft_set_context_clear(&address->nft_set_context); |
1886 | (void) nft_set_context_dup(&a->nft_set_context, &address->nft_set_context); | |
0a0c2672 YW |
1887 | address->requested_as_null = a->requested_as_null; |
1888 | address->callback = a->callback; | |
1889 | } | |
1890 | ||
3c283289 YW |
1891 | /* Then, update miscellaneous info. */ |
1892 | r = sd_rtnl_message_addr_get_scope(message, &address->scope); | |
1893 | if (r < 0) | |
1894 | log_link_debug_errno(link, r, "rtnl: received address message without scope, ignoring: %m"); | |
e1fc2c43 | 1895 | |
3c283289 YW |
1896 | if (address->family == AF_INET) { |
1897 | _cleanup_free_ char *label = NULL; | |
e1fc2c43 | 1898 | |
3c283289 YW |
1899 | r = sd_netlink_message_read_string_strdup(message, IFA_LABEL, &label); |
1900 | if (r >= 0) { | |
1901 | if (!streq_ptr(label, link->ifname)) | |
1902 | free_and_replace(address->label, label); | |
1903 | } else if (r != -ENODATA) | |
1904 | log_link_debug_errno(link, r, "rtnl: could not get label from address message, ignoring: %m"); | |
1905 | ||
1906 | r = sd_netlink_message_read_in_addr(message, IFA_BROADCAST, &address->broadcast); | |
1907 | if (r < 0 && r != -ENODATA) | |
1908 | log_link_debug_errno(link, r, "rtnl: could not get broadcast from address message, ignoring: %m"); | |
e1fc2c43 YW |
1909 | } |
1910 | ||
3c283289 YW |
1911 | r = sd_netlink_message_read_u32(message, IFA_FLAGS, &address->flags); |
1912 | if (r == -ENODATA) { | |
1913 | unsigned char flags; | |
1914 | ||
1915 | /* For old kernels. */ | |
1916 | r = sd_rtnl_message_addr_get_flags(message, &flags); | |
1917 | if (r >= 0) | |
1918 | address->flags = flags; | |
1919 | } else if (r < 0) | |
1920 | log_link_debug_errno(link, r, "rtnl: failed to read IFA_FLAGS attribute, ignoring: %m"); | |
1921 | ||
1922 | r = sd_netlink_message_read_cache_info(message, IFA_CACHEINFO, &cinfo); | |
1923 | if (r >= 0) | |
1924 | address_set_lifetime(m, address, &cinfo); | |
1925 | else if (r != -ENODATA) | |
1926 | log_link_debug_errno(link, r, "rtnl: failed to read IFA_CACHEINFO attribute, ignoring: %m"); | |
1927 | ||
7e18f9b4 YW |
1928 | r = sd_netlink_message_read_u32(message, IFA_RT_PRIORITY, &address->route_metric); |
1929 | if (r < 0 && r != -ENODATA) | |
1930 | log_link_debug_errno(link, r, "rtnl: failed to read IFA_RT_PRIORITY attribute, ignoring: %m"); | |
1931 | ||
3c283289 | 1932 | address_enter_configured(address); |
0a0c2672 YW |
1933 | if (req) |
1934 | address_enter_configured(req->userdata); | |
1935 | ||
3c283289 YW |
1936 | log_address_debug(address, is_new ? "Received new": "Received updated", link); |
1937 | ||
1938 | /* address_update() logs internally, so we don't need to here. */ | |
1939 | r = address_update(address); | |
1940 | if (r < 0) | |
1941 | link_enter_failed(link); | |
1942 | ||
fc35a9f8 YW |
1943 | finalize: |
1944 | if (update_dhcp4) { | |
1945 | r = dhcp4_update_ipv6_connectivity(link); | |
1946 | if (r < 0) { | |
1947 | log_link_warning_errno(link, r, "Failed to notify IPv6 connectivity to DHCPv4 client: %m"); | |
1948 | link_enter_failed(link); | |
1949 | } | |
1950 | } | |
1951 | ||
e1fc2c43 YW |
1952 | return 1; |
1953 | } | |
1954 | ||
44e7b949 LP |
1955 | int config_parse_broadcast( |
1956 | const char *unit, | |
eb0ea358 TG |
1957 | const char *filename, |
1958 | unsigned line, | |
1959 | const char *section, | |
1960 | unsigned section_line, | |
1961 | const char *lvalue, | |
1962 | int ltype, | |
1963 | const char *rvalue, | |
1964 | void *data, | |
1965 | void *userdata) { | |
44e7b949 | 1966 | |
eb0ea358 | 1967 | Network *network = userdata; |
ebd96906 | 1968 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
94af46fc | 1969 | union in_addr_union u; |
eb0ea358 TG |
1970 | int r; |
1971 | ||
1972 | assert(filename); | |
1973 | assert(section); | |
1974 | assert(lvalue); | |
1975 | assert(rvalue); | |
1976 | assert(data); | |
1977 | ||
f4859fc7 | 1978 | r = address_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1979 | if (r == -ENOMEM) |
1980 | return log_oom(); | |
1981 | if (r < 0) { | |
1982 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1983 | "Failed to allocate new address, ignoring assignment: %m"); | |
1984 | return 0; | |
1985 | } | |
eb0ea358 | 1986 | |
832583ad YW |
1987 | if (isempty(rvalue)) { |
1988 | /* The broadcast address will be calculated based on Address=, and set if the link is | |
1989 | * not a wireguard interface. Here, we do not check or set n->family. */ | |
1990 | n->broadcast = (struct in_addr) {}; | |
1991 | n->set_broadcast = -1; | |
1992 | TAKE_PTR(n); | |
1993 | return 0; | |
1994 | } | |
1995 | ||
1996 | r = parse_boolean(rvalue); | |
1997 | if (r >= 0) { | |
1998 | /* The broadcast address will be calculated based on Address=. Here, we do not check or | |
1999 | * set n->family. */ | |
2000 | n->broadcast = (struct in_addr) {}; | |
2001 | n->set_broadcast = r; | |
2002 | TAKE_PTR(n); | |
2003 | return 0; | |
2004 | } | |
2005 | ||
482e2ac1 | 2006 | if (n->family == AF_INET6) { |
d96edb2c | 2007 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
2850cd40 | 2008 | "Broadcast is not valid for IPv6 addresses, ignoring assignment: %s", rvalue); |
482e2ac1 TG |
2009 | return 0; |
2010 | } | |
2011 | ||
94af46fc | 2012 | r = in_addr_from_string(AF_INET, rvalue, &u); |
eb0ea358 | 2013 | if (r < 0) { |
d96edb2c | 2014 | log_syntax(unit, LOG_WARNING, filename, line, r, |
2850cd40 | 2015 | "Broadcast is invalid, ignoring assignment: %s", rvalue); |
eb0ea358 TG |
2016 | return 0; |
2017 | } | |
832583ad YW |
2018 | if (in4_addr_is_null(&u.in)) { |
2019 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
2020 | "Broadcast cannot be ANY address, ignoring assignment: %s", rvalue); | |
2021 | return 0; | |
2022 | } | |
eb0ea358 | 2023 | |
94af46fc | 2024 | n->broadcast = u.in; |
832583ad | 2025 | n->set_broadcast = true; |
44e7b949 | 2026 | n->family = AF_INET; |
dea161d9 | 2027 | TAKE_PTR(n); |
eb0ea358 TG |
2028 | |
2029 | return 0; | |
2030 | } | |
2031 | ||
f5ee7d74 YW |
2032 | int config_parse_address( |
2033 | const char *unit, | |
f579559b TG |
2034 | const char *filename, |
2035 | unsigned line, | |
2036 | const char *section, | |
71a61510 | 2037 | unsigned section_line, |
f579559b TG |
2038 | const char *lvalue, |
2039 | int ltype, | |
2040 | const char *rvalue, | |
2041 | void *data, | |
2042 | void *userdata) { | |
44e7b949 | 2043 | |
6ae115c1 | 2044 | Network *network = userdata; |
ebd96906 | 2045 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
44e7b949 | 2046 | union in_addr_union buffer; |
b7cb4452 | 2047 | unsigned char prefixlen; |
44e7b949 | 2048 | int r, f; |
f579559b TG |
2049 | |
2050 | assert(filename); | |
6ae115c1 | 2051 | assert(section); |
f579559b TG |
2052 | assert(lvalue); |
2053 | assert(rvalue); | |
2054 | assert(data); | |
2055 | ||
a61738b3 YW |
2056 | if (streq(section, "Network")) { |
2057 | if (isempty(rvalue)) { | |
2058 | /* If an empty string specified in [Network] section, clear previously assigned addresses. */ | |
ebd96906 | 2059 | network->addresses_by_section = ordered_hashmap_free(network->addresses_by_section); |
a61738b3 YW |
2060 | return 0; |
2061 | } | |
2062 | ||
9cd9fc8f YW |
2063 | /* we are not in an Address section, so use line number instead. */ |
2064 | r = address_new_static(network, filename, line, &n); | |
a61738b3 | 2065 | } else |
f4859fc7 | 2066 | r = address_new_static(network, filename, section_line, &n); |
d96edb2c YW |
2067 | if (r == -ENOMEM) |
2068 | return log_oom(); | |
2069 | if (r < 0) { | |
2070 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2071 | "Failed to allocate new address, ignoring assignment: %m"); | |
2072 | return 0; | |
2073 | } | |
f579559b TG |
2074 | |
2075 | /* Address=address/prefixlen */ | |
0f707207 YW |
2076 | r = in_addr_prefix_from_string_auto_internal(rvalue, PREFIXLEN_REFUSE, &f, &buffer, &prefixlen); |
2077 | if (r == -ENOANO) { | |
e5e07431 YW |
2078 | r = in_addr_prefix_from_string_auto(rvalue, &f, &buffer, &prefixlen); |
2079 | if (r >= 0) | |
2080 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
c5874748 | 2081 | "Address '%s' is specified without prefix length. Assuming the prefix length is %u. " |
e5e07431 | 2082 | "Please specify the prefix length explicitly.", rvalue, prefixlen); |
0f707207 | 2083 | } |
f579559b | 2084 | if (r < 0) { |
d96edb2c | 2085 | log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid address '%s', ignoring assignment: %m", rvalue); |
f579559b TG |
2086 | return 0; |
2087 | } | |
2088 | ||
44e7b949 | 2089 | if (n->family != AF_UNSPEC && f != n->family) { |
d96edb2c | 2090 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Address is incompatible, ignoring assignment: %s", rvalue); |
44e7b949 LP |
2091 | return 0; |
2092 | } | |
2093 | ||
c9207ff3 YW |
2094 | if (in_addr_is_null(f, &buffer)) { |
2095 | /* Will use address from address pool. Note that for ipv6 case, prefix of the address | |
2096 | * pool is 8, but 40 bit is used by the global ID and 16 bit by the subnet ID. So, | |
2097 | * let's limit the prefix length to 64 or larger. See RFC4193. */ | |
2098 | if ((f == AF_INET && prefixlen < 8) || | |
2099 | (f == AF_INET6 && prefixlen < 64)) { | |
d96edb2c | 2100 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
c9207ff3 YW |
2101 | "Null address with invalid prefixlen='%u', ignoring assignment: %s", |
2102 | prefixlen, rvalue); | |
2103 | return 0; | |
2104 | } | |
2105 | } | |
2106 | ||
44e7b949 | 2107 | n->family = f; |
b7cb4452 | 2108 | n->prefixlen = prefixlen; |
44e7b949 | 2109 | |
d0009d92 | 2110 | if (streq(lvalue, "Address")) { |
44e7b949 | 2111 | n->in_addr = buffer; |
d0009d92 YW |
2112 | n->requested_as_null = !in_addr_is_set(n->family, &n->in_addr); |
2113 | } else | |
44e7b949 LP |
2114 | n->in_addr_peer = buffer; |
2115 | ||
dea161d9 | 2116 | TAKE_PTR(n); |
f579559b TG |
2117 | return 0; |
2118 | } | |
6ae115c1 | 2119 | |
d31645ad LP |
2120 | int config_parse_label( |
2121 | const char *unit, | |
6ae115c1 TG |
2122 | const char *filename, |
2123 | unsigned line, | |
2124 | const char *section, | |
2125 | unsigned section_line, | |
2126 | const char *lvalue, | |
2127 | int ltype, | |
2128 | const char *rvalue, | |
2129 | void *data, | |
2130 | void *userdata) { | |
d31645ad | 2131 | |
ebd96906 | 2132 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
d31645ad | 2133 | Network *network = userdata; |
6ae115c1 TG |
2134 | int r; |
2135 | ||
2136 | assert(filename); | |
2137 | assert(section); | |
2138 | assert(lvalue); | |
2139 | assert(rvalue); | |
2140 | assert(data); | |
2141 | ||
f4859fc7 | 2142 | r = address_new_static(network, filename, section_line, &n); |
d96edb2c YW |
2143 | if (r == -ENOMEM) |
2144 | return log_oom(); | |
2145 | if (r < 0) { | |
2146 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2147 | "Failed to allocate new address, ignoring assignment: %m"); | |
2148 | return 0; | |
2149 | } | |
6ae115c1 | 2150 | |
b8e898a6 YW |
2151 | if (isempty(rvalue)) { |
2152 | n->label = mfree(n->label); | |
2153 | TAKE_PTR(n); | |
2154 | return 0; | |
2155 | } | |
2156 | ||
a87d19fe | 2157 | if (!address_label_valid(rvalue)) { |
d96edb2c | 2158 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
2850cd40 | 2159 | "Interface label is too long or invalid, ignoring assignment: %s", rvalue); |
6ae115c1 TG |
2160 | return 0; |
2161 | } | |
2162 | ||
d31645ad LP |
2163 | r = free_and_strdup(&n->label, rvalue); |
2164 | if (r < 0) | |
2165 | return log_oom(); | |
6ae115c1 | 2166 | |
dea161d9 | 2167 | TAKE_PTR(n); |
6ae115c1 TG |
2168 | return 0; |
2169 | } | |
ce6c77eb | 2170 | |
f5ee7d74 YW |
2171 | int config_parse_lifetime( |
2172 | const char *unit, | |
2173 | const char *filename, | |
2174 | unsigned line, | |
2175 | const char *section, | |
2176 | unsigned section_line, | |
2177 | const char *lvalue, | |
2178 | int ltype, | |
2179 | const char *rvalue, | |
2180 | void *data, | |
2181 | void *userdata) { | |
2182 | ||
b5834a0b | 2183 | Network *network = userdata; |
ebd96906 | 2184 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
16bc8635 | 2185 | usec_t k; |
b5834a0b SS |
2186 | int r; |
2187 | ||
2188 | assert(filename); | |
2189 | assert(section); | |
2190 | assert(lvalue); | |
2191 | assert(rvalue); | |
2192 | assert(data); | |
2193 | ||
f4859fc7 | 2194 | r = address_new_static(network, filename, section_line, &n); |
d96edb2c YW |
2195 | if (r == -ENOMEM) |
2196 | return log_oom(); | |
2197 | if (r < 0) { | |
2198 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2199 | "Failed to allocate new address, ignoring assignment: %m"); | |
2200 | return 0; | |
2201 | } | |
b5834a0b | 2202 | |
10b20e5a ZJS |
2203 | /* We accept only "forever", "infinity", empty, or "0". */ |
2204 | if (STR_IN_SET(rvalue, "forever", "infinity", "")) | |
16bc8635 | 2205 | k = USEC_INFINITY; |
33680b0a YW |
2206 | else if (streq(rvalue, "0")) |
2207 | k = 0; | |
2208 | else { | |
d96edb2c | 2209 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
33680b0a | 2210 | "Invalid PreferredLifetime= value, ignoring: %s", rvalue); |
b5834a0b SS |
2211 | return 0; |
2212 | } | |
2213 | ||
16bc8635 | 2214 | n->lifetime_preferred_usec = k; |
d2735796 | 2215 | TAKE_PTR(n); |
b5834a0b SS |
2216 | |
2217 | return 0; | |
2218 | } | |
2219 | ||
f5ee7d74 YW |
2220 | int config_parse_address_flags( |
2221 | const char *unit, | |
2222 | const char *filename, | |
2223 | unsigned line, | |
2224 | const char *section, | |
2225 | unsigned section_line, | |
2226 | const char *lvalue, | |
2227 | int ltype, | |
2228 | const char *rvalue, | |
2229 | void *data, | |
2230 | void *userdata) { | |
2231 | ||
e63be084 | 2232 | Network *network = userdata; |
ebd96906 | 2233 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
e63be084 SS |
2234 | int r; |
2235 | ||
2236 | assert(filename); | |
2237 | assert(section); | |
2238 | assert(lvalue); | |
2239 | assert(rvalue); | |
2240 | assert(data); | |
2241 | ||
f4859fc7 | 2242 | r = address_new_static(network, filename, section_line, &n); |
d96edb2c YW |
2243 | if (r == -ENOMEM) |
2244 | return log_oom(); | |
2245 | if (r < 0) { | |
2246 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2247 | "Failed to allocate new address, ignoring assignment: %m"); | |
2248 | return 0; | |
2249 | } | |
e63be084 SS |
2250 | |
2251 | r = parse_boolean(rvalue); | |
2252 | if (r < 0) { | |
d96edb2c | 2253 | log_syntax(unit, LOG_WARNING, filename, line, r, |
051e77ca | 2254 | "Failed to parse %s=, ignoring: %s", lvalue, rvalue); |
e63be084 SS |
2255 | return 0; |
2256 | } | |
2257 | ||
eaff204f YW |
2258 | if (streq(lvalue, "AddPrefixRoute")) |
2259 | r = !r; | |
2260 | ||
2261 | SET_FLAG(n->flags, ltype, r); | |
e63be084 | 2262 | |
dea161d9 | 2263 | TAKE_PTR(n); |
e63be084 SS |
2264 | return 0; |
2265 | } | |
2266 | ||
f5ee7d74 YW |
2267 | int config_parse_address_scope( |
2268 | const char *unit, | |
2269 | const char *filename, | |
2270 | unsigned line, | |
2271 | const char *section, | |
2272 | unsigned section_line, | |
2273 | const char *lvalue, | |
2274 | int ltype, | |
2275 | const char *rvalue, | |
2276 | void *data, | |
2277 | void *userdata) { | |
2278 | ||
2959fb07 | 2279 | Network *network = userdata; |
ebd96906 | 2280 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
2959fb07 SS |
2281 | int r; |
2282 | ||
2283 | assert(filename); | |
2284 | assert(section); | |
2285 | assert(lvalue); | |
2286 | assert(rvalue); | |
2287 | assert(data); | |
2288 | ||
2289 | r = address_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
2290 | if (r == -ENOMEM) |
2291 | return log_oom(); | |
2292 | if (r < 0) { | |
2293 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2294 | "Failed to allocate new address, ignoring assignment: %m"); | |
2295 | return 0; | |
2296 | } | |
2959fb07 | 2297 | |
d8c472f2 YW |
2298 | r = route_scope_from_string(rvalue); |
2299 | if (r < 0) { | |
2300 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2301 | "Could not parse address scope \"%s\", ignoring assignment: %m", rvalue); | |
2302 | return 0; | |
2959fb07 SS |
2303 | } |
2304 | ||
d8c472f2 | 2305 | n->scope = r; |
07336a06 | 2306 | n->scope_set = true; |
dea161d9 | 2307 | TAKE_PTR(n); |
2959fb07 SS |
2308 | return 0; |
2309 | } | |
2310 | ||
c4ff0629 YW |
2311 | int config_parse_address_route_metric( |
2312 | const char *unit, | |
2313 | const char *filename, | |
2314 | unsigned line, | |
2315 | const char *section, | |
2316 | unsigned section_line, | |
2317 | const char *lvalue, | |
2318 | int ltype, | |
2319 | const char *rvalue, | |
2320 | void *data, | |
2321 | void *userdata) { | |
2322 | ||
2323 | Network *network = userdata; | |
ebd96906 | 2324 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
c4ff0629 YW |
2325 | int r; |
2326 | ||
2327 | assert(filename); | |
2328 | assert(section); | |
2329 | assert(lvalue); | |
2330 | assert(rvalue); | |
2331 | assert(data); | |
2332 | ||
2333 | r = address_new_static(network, filename, section_line, &n); | |
2334 | if (r == -ENOMEM) | |
2335 | return log_oom(); | |
2336 | if (r < 0) { | |
2337 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2338 | "Failed to allocate new address, ignoring assignment: %m"); | |
2339 | return 0; | |
2340 | } | |
2341 | ||
2342 | r = safe_atou32(rvalue, &n->route_metric); | |
2343 | if (r < 0) { | |
2344 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2345 | "Could not parse %s=, ignoring assignment: %s", lvalue, rvalue); | |
2346 | return 0; | |
2347 | } | |
2348 | ||
2349 | TAKE_PTR(n); | |
2350 | return 0; | |
2351 | } | |
2352 | ||
051e77ca SS |
2353 | int config_parse_duplicate_address_detection( |
2354 | const char *unit, | |
2355 | const char *filename, | |
2356 | unsigned line, | |
2357 | const char *section, | |
2358 | unsigned section_line, | |
2359 | const char *lvalue, | |
2360 | int ltype, | |
2361 | const char *rvalue, | |
2362 | void *data, | |
2363 | void *userdata) { | |
f5ee7d74 | 2364 | |
051e77ca | 2365 | Network *network = userdata; |
ebd96906 | 2366 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
051e77ca SS |
2367 | int r; |
2368 | ||
2369 | assert(filename); | |
2370 | assert(section); | |
2371 | assert(lvalue); | |
2372 | assert(rvalue); | |
2373 | assert(data); | |
2374 | ||
2375 | r = address_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
2376 | if (r == -ENOMEM) |
2377 | return log_oom(); | |
2378 | if (r < 0) { | |
2379 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2380 | "Failed to allocate new address, ignoring assignment: %m"); | |
2381 | return 0; | |
2382 | } | |
051e77ca SS |
2383 | |
2384 | r = parse_boolean(rvalue); | |
2385 | if (r >= 0) { | |
2386 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
2387 | "For historical reasons, %s=%s means %s=%s. " | |
2388 | "Please use 'both', 'ipv4', 'ipv6' or 'none' instead.", | |
2389 | lvalue, rvalue, lvalue, r ? "none" : "both"); | |
2390 | n->duplicate_address_detection = r ? ADDRESS_FAMILY_NO : ADDRESS_FAMILY_YES; | |
2391 | n = NULL; | |
2392 | return 0; | |
2393 | } | |
2394 | ||
7211c853 | 2395 | AddressFamily a = duplicate_address_detection_address_family_from_string(rvalue); |
051e77ca | 2396 | if (a < 0) { |
7211c853 | 2397 | log_syntax(unit, LOG_WARNING, filename, line, a, |
051e77ca SS |
2398 | "Failed to parse %s=, ignoring: %s", lvalue, rvalue); |
2399 | return 0; | |
2400 | } | |
051e77ca | 2401 | n->duplicate_address_detection = a; |
7211c853 | 2402 | |
dea161d9 | 2403 | TAKE_PTR(n); |
051e77ca SS |
2404 | return 0; |
2405 | } | |
2406 | ||
4b3590c3 TM |
2407 | int config_parse_address_netlabel( |
2408 | const char *unit, | |
2409 | const char *filename, | |
2410 | unsigned line, | |
2411 | const char *section, | |
2412 | unsigned section_line, | |
2413 | const char *lvalue, | |
2414 | int ltype, | |
2415 | const char *rvalue, | |
2416 | void *data, | |
2417 | void *userdata) { | |
2418 | ||
2419 | Network *network = userdata; | |
ebd96906 | 2420 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
4b3590c3 TM |
2421 | int r; |
2422 | ||
2423 | assert(filename); | |
2424 | assert(section); | |
2425 | assert(lvalue); | |
2426 | assert(rvalue); | |
2427 | assert(data); | |
2428 | assert(network); | |
2429 | ||
2430 | r = address_new_static(network, filename, section_line, &n); | |
2431 | if (r == -ENOMEM) | |
2432 | return log_oom(); | |
2433 | if (r < 0) { | |
2434 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2435 | "Failed to allocate new address, ignoring assignment: %m"); | |
2436 | return 0; | |
2437 | } | |
2438 | ||
2439 | r = config_parse_string(unit, filename, line, section, section_line, | |
2440 | lvalue, CONFIG_PARSE_STRING_SAFE, rvalue, &n->netlabel, network); | |
2441 | if (r < 0) | |
2442 | return r; | |
2443 | ||
2444 | TAKE_PTR(n); | |
2445 | return 0; | |
2446 | } | |
2447 | ||
9a45125a YW |
2448 | static void address_section_adjust_broadcast(Address *address) { |
2449 | assert(address); | |
2450 | assert(address->section); | |
2451 | ||
2452 | if (!in4_addr_is_set(&address->broadcast)) | |
2453 | return; | |
2454 | ||
2455 | if (address->family == AF_INET6) | |
2456 | log_warning("%s: broadcast address is set for an IPv6 address. " | |
2457 | "Ignoring Broadcast= setting in the [Address] section from line %u.", | |
2458 | address->section->filename, address->section->line); | |
2459 | else if (address->prefixlen > 30) | |
2460 | log_warning("%s: broadcast address is set for an IPv4 address with prefix length larger than 30. " | |
2461 | "Ignoring Broadcast= setting in the [Address] section from line %u.", | |
2462 | address->section->filename, address->section->line); | |
2463 | else if (in4_addr_is_set(&address->in_addr_peer.in)) | |
2464 | log_warning("%s: broadcast address is set for an IPv4 address with peer address. " | |
2465 | "Ignoring Broadcast= setting in the [Address] section from line %u.", | |
2466 | address->section->filename, address->section->line); | |
0acc6470 YW |
2467 | else if (!in4_addr_is_set(&address->in_addr.in)) |
2468 | log_warning("%s: broadcast address is set for an IPv4 address with null address. " | |
2469 | "Ignoring Broadcast= setting in the [Address] section from line %u.", | |
2470 | address->section->filename, address->section->line); | |
9a45125a YW |
2471 | else |
2472 | /* Otherwise, keep the specified broadcast address. */ | |
2473 | return; | |
2474 | ||
2475 | address->broadcast.s_addr = 0; | |
2476 | } | |
2477 | ||
5459e11d | 2478 | int address_section_verify(Address *address) { |
fcbf4cb7 YW |
2479 | if (section_is_invalid(address->section)) |
2480 | return -EINVAL; | |
2481 | ||
2482 | if (address->family == AF_UNSPEC) { | |
2483 | assert(address->section); | |
2484 | ||
2485 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
d9e2afc0 | 2486 | "%s: Address section without Address= field was configured. " |
fcbf4cb7 YW |
2487 | "Ignoring [Address] section from line %u.", |
2488 | address->section->filename, address->section->line); | |
2489 | } | |
2490 | ||
d9e2afc0 YW |
2491 | if (address->family == AF_INET6 && !socket_ipv6_is_supported()) |
2492 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
2493 | "%s: an IPv6 address was configured, but the kernel does not support IPv6. " | |
2494 | "Ignoring [Address] section from line %u.", | |
2495 | address->section->filename, address->section->line); | |
2496 | ||
2859932b YW |
2497 | assert(IN_SET(address->family, AF_INET, AF_INET6)); |
2498 | ||
9a45125a | 2499 | address_section_adjust_broadcast(address); |
fe841414 YW |
2500 | |
2501 | if (address->family == AF_INET6 && address->label) { | |
2502 | log_warning("%s: address label is set for IPv6 address in the [Address] section from line %u. " | |
2503 | "Ignoring Label= setting.", | |
2504 | address->section->filename, address->section->line); | |
2505 | ||
2506 | address->label = mfree(address->label); | |
2507 | } | |
2508 | ||
20228b6d YW |
2509 | if (!address->scope_set) { |
2510 | if (in_addr_is_localhost(address->family, &address->in_addr) > 0) | |
2511 | address->scope = RT_SCOPE_HOST; | |
2512 | else if (in_addr_is_link_local(address->family, &address->in_addr) > 0) | |
2513 | address->scope = RT_SCOPE_LINK; | |
2514 | } | |
07336a06 | 2515 | |
2859932b YW |
2516 | if (address->duplicate_address_detection < 0) { |
2517 | if (address->family == AF_INET6) | |
2518 | address->duplicate_address_detection = ADDRESS_FAMILY_IPV6; | |
2519 | else if (in4_addr_is_link_local(&address->in_addr.in)) | |
2520 | address->duplicate_address_detection = ADDRESS_FAMILY_IPV4; | |
2521 | else | |
2522 | address->duplicate_address_detection = ADDRESS_FAMILY_NO; | |
2523 | } else if (address->duplicate_address_detection == ADDRESS_FAMILY_IPV6 && address->family == AF_INET) | |
2524 | log_warning("%s: DuplicateAddressDetection=ipv6 is specified for IPv4 address, ignoring.", | |
2525 | address->section->filename); | |
2526 | else if (address->duplicate_address_detection == ADDRESS_FAMILY_IPV4 && address->family == AF_INET6) | |
2527 | log_warning("%s: DuplicateAddressDetection=ipv4 is specified for IPv6 address, ignoring.", | |
2528 | address->section->filename); | |
2529 | ||
bd5146c6 YW |
2530 | if (address->family == AF_INET6 && |
2531 | !FLAGS_SET(address->duplicate_address_detection, ADDRESS_FAMILY_IPV6)) | |
eaff204f YW |
2532 | address->flags |= IFA_F_NODAD; |
2533 | ||
b1179a5d YW |
2534 | uint32_t filtered_flags = address->family == AF_INET ? |
2535 | address->flags & KNOWN_FLAGS & ~UNMANAGED_FLAGS & ~IPV6ONLY_FLAGS : | |
2536 | address->flags & KNOWN_FLAGS & ~UNMANAGED_FLAGS; | |
2537 | if (address->flags != filtered_flags) { | |
2538 | _cleanup_free_ char *str = NULL; | |
2539 | ||
b7d43592 | 2540 | (void) address_flags_to_string_alloc(address->flags ^ filtered_flags, address->family, &str); |
b1179a5d YW |
2541 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), |
2542 | "%s: unexpected address flags \"%s\" were configured. " | |
2543 | "Ignoring [Address] section from line %u.", | |
2544 | address->section->filename, strna(str), address->section->line); | |
2545 | } | |
2546 | ||
fcbf4cb7 YW |
2547 | return 0; |
2548 | } | |
32400c2f | 2549 | |
50783f91 YW |
2550 | int network_drop_invalid_addresses(Network *network) { |
2551 | _cleanup_set_free_ Set *addresses = NULL; | |
9cd9fc8f | 2552 | Address *address; |
50783f91 | 2553 | int r; |
32400c2f YW |
2554 | |
2555 | assert(network); | |
2556 | ||
50783f91 YW |
2557 | ORDERED_HASHMAP_FOREACH(address, network->addresses_by_section) { |
2558 | Address *dup; | |
2559 | ||
2560 | if (address_section_verify(address) < 0) { | |
2561 | /* Drop invalid [Address] sections or Address= settings in [Network]. | |
ebd96906 YW |
2562 | * Note that address_detach() will drop the address from addresses_by_section. */ |
2563 | address_detach(address); | |
50783f91 YW |
2564 | continue; |
2565 | } | |
2566 | ||
2567 | /* Always use the setting specified later. So, remove the previously assigned setting. */ | |
2568 | dup = set_remove(addresses, address); | |
2569 | if (dup) { | |
50783f91 YW |
2570 | log_warning("%s: Duplicated address %s is specified at line %u and %u, " |
2571 | "dropping the address setting specified at line %u.", | |
c71384a9 ZJS |
2572 | dup->section->filename, |
2573 | IN_ADDR_PREFIX_TO_STRING(address->family, &address->in_addr, address->prefixlen), | |
2574 | address->section->line, | |
50783f91 | 2575 | dup->section->line, dup->section->line); |
ebd96906 YW |
2576 | |
2577 | /* address_detach() will drop the address from addresses_by_section. */ | |
2578 | address_detach(dup); | |
50783f91 YW |
2579 | } |
2580 | ||
ebd96906 YW |
2581 | /* Use address_hash_ops, instead of address_hash_ops_detach. Otherwise, the Address objects |
2582 | * will be detached. */ | |
4da252c5 | 2583 | r = set_ensure_put(&addresses, &address_hash_ops, address); |
50783f91 YW |
2584 | if (r < 0) |
2585 | return log_oom(); | |
2586 | assert(r > 0); | |
2587 | } | |
2588 | ||
5459e11d YW |
2589 | r = network_adjust_dhcp_server(network, &addresses); |
2590 | if (r < 0) | |
2591 | return r; | |
26f88471 | 2592 | |
50783f91 | 2593 | return 0; |
32400c2f | 2594 | } |
fc289dd0 TM |
2595 | |
2596 | int config_parse_address_ip_nft_set( | |
2597 | const char *unit, | |
2598 | const char *filename, | |
2599 | unsigned line, | |
2600 | const char *section, | |
2601 | unsigned section_line, | |
2602 | const char *lvalue, | |
2603 | int ltype, | |
2604 | const char *rvalue, | |
2605 | void *data, | |
2606 | void *userdata) { | |
2607 | ||
2608 | Network *network = userdata; | |
ebd96906 | 2609 | _cleanup_(address_unref_or_set_invalidp) Address *n = NULL; |
fc289dd0 TM |
2610 | int r; |
2611 | ||
2612 | assert(filename); | |
2613 | assert(lvalue); | |
2614 | assert(rvalue); | |
2615 | assert(network); | |
2616 | ||
2617 | r = address_new_static(network, filename, section_line, &n); | |
2618 | if (r == -ENOMEM) | |
2619 | return log_oom(); | |
2620 | if (r < 0) { | |
2621 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2622 | "Failed to allocate a new address, ignoring assignment: %m"); | |
2623 | return 0; | |
2624 | } | |
2625 | ||
2626 | r = config_parse_nft_set(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &n->nft_set_context, network); | |
2627 | if (r < 0) | |
2628 | return r; | |
2629 | ||
2630 | TAKE_PTR(n); | |
2631 | return 0; | |
2632 | } |