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f579559b TG |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
b5efdb8a | 22 | #include "alloc-util.h" |
f579559b | 23 | #include "conf-parser.h" |
bb7ae737 | 24 | #include "in-addr-util.h" |
fc2f9534 | 25 | #include "netlink-util.h" |
6bedfcbb | 26 | #include "networkd-route.h" |
fc2f9534 | 27 | #include "networkd.h" |
6bedfcbb | 28 | #include "parse-util.h" |
1c8e710c | 29 | #include "set.h" |
07630cea LP |
30 | #include "string-util.h" |
31 | #include "util.h" | |
f579559b | 32 | |
ed9e361a | 33 | int route_new(Route **ret) { |
f0213e37 TG |
34 | _cleanup_route_free_ Route *route = NULL; |
35 | ||
36 | route = new0(Route, 1); | |
37 | if (!route) | |
38 | return -ENOMEM; | |
39 | ||
40 | route->family = AF_UNSPEC; | |
41 | route->scope = RT_SCOPE_UNIVERSE; | |
ed9e361a | 42 | route->protocol = RTPROT_UNSPEC; |
bb7ae737 | 43 | route->table = RT_TABLE_DEFAULT; |
f833694d | 44 | route->lifetime = USEC_INFINITY; |
f0213e37 TG |
45 | |
46 | *ret = route; | |
47 | route = NULL; | |
48 | ||
49 | return 0; | |
50 | } | |
51 | ||
f048a16b | 52 | int route_new_static(Network *network, unsigned section, Route **ret) { |
f579559b | 53 | _cleanup_route_free_ Route *route = NULL; |
f0213e37 | 54 | int r; |
f579559b | 55 | |
6ae115c1 | 56 | if (section) { |
16aa63a0 TG |
57 | route = hashmap_get(network->routes_by_section, |
58 | UINT_TO_PTR(section)); | |
6ae115c1 TG |
59 | if (route) { |
60 | *ret = route; | |
61 | route = NULL; | |
62 | ||
63 | return 0; | |
64 | } | |
65 | } | |
66 | ||
ed9e361a | 67 | r = route_new(&route); |
f0213e37 TG |
68 | if (r < 0) |
69 | return r; | |
801bd9e8 | 70 | |
ed9e361a | 71 | route->protocol = RTPROT_STATIC; |
f579559b TG |
72 | route->network = network; |
73 | ||
3d3d4255 | 74 | LIST_PREPEND(routes, network->static_routes, route); |
f579559b | 75 | |
6ae115c1 TG |
76 | if (section) { |
77 | route->section = section; | |
16aa63a0 TG |
78 | hashmap_put(network->routes_by_section, |
79 | UINT_TO_PTR(route->section), route); | |
6ae115c1 TG |
80 | } |
81 | ||
f579559b TG |
82 | *ret = route; |
83 | route = NULL; | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
88 | void route_free(Route *route) { | |
89 | if (!route) | |
90 | return; | |
91 | ||
f048a16b | 92 | if (route->network) { |
3d3d4255 | 93 | LIST_REMOVE(routes, route->network->static_routes, route); |
f579559b | 94 | |
f048a16b TG |
95 | if (route->section) |
96 | hashmap_remove(route->network->routes_by_section, | |
16aa63a0 | 97 | UINT_TO_PTR(route->section)); |
f048a16b | 98 | } |
6ae115c1 | 99 | |
1c8e710c TG |
100 | if (route->link) { |
101 | set_remove(route->link->routes, route); | |
102 | set_remove(route->link->routes_foreign, route); | |
103 | } | |
104 | ||
f833694d TG |
105 | sd_event_source_unref(route->expire); |
106 | ||
f579559b TG |
107 | free(route); |
108 | } | |
109 | ||
bb7ae737 TG |
110 | static void route_hash_func(const void *b, struct siphash *state) { |
111 | const Route *route = b; | |
112 | ||
113 | assert(route); | |
114 | ||
115 | siphash24_compress(&route->family, sizeof(route->family), state); | |
116 | ||
117 | switch (route->family) { | |
118 | case AF_INET: | |
119 | case AF_INET6: | |
120 | /* Equality of routes are given by the 4-touple | |
121 | (dst_prefix,dst_prefixlen,tos,priority,table) */ | |
2ce40956 | 122 | siphash24_compress(&route->dst, FAMILY_ADDRESS_SIZE(route->family), state); |
bb7ae737 TG |
123 | siphash24_compress(&route->dst_prefixlen, sizeof(route->dst_prefixlen), state); |
124 | siphash24_compress(&route->tos, sizeof(route->tos), state); | |
125 | siphash24_compress(&route->priority, sizeof(route->priority), state); | |
126 | siphash24_compress(&route->table, sizeof(route->table), state); | |
127 | ||
128 | break; | |
129 | default: | |
130 | /* treat any other address family as AF_UNSPEC */ | |
131 | break; | |
132 | } | |
133 | } | |
134 | ||
135 | static int route_compare_func(const void *_a, const void *_b) { | |
136 | const Route *a = _a, *b = _b; | |
137 | ||
138 | if (a->family < b->family) | |
139 | return -1; | |
140 | if (a->family > b->family) | |
141 | return 1; | |
142 | ||
143 | switch (a->family) { | |
144 | case AF_INET: | |
145 | case AF_INET6: | |
bb7ae737 TG |
146 | if (a->dst_prefixlen < b->dst_prefixlen) |
147 | return -1; | |
148 | if (a->dst_prefixlen > b->dst_prefixlen) | |
149 | return 1; | |
150 | ||
151 | if (a->tos < b->tos) | |
152 | return -1; | |
153 | if (a->tos > b->tos) | |
154 | return 1; | |
155 | ||
156 | if (a->priority < b->priority) | |
157 | return -1; | |
158 | if (a->priority > b->priority) | |
159 | return 1; | |
160 | ||
161 | if (a->table < b->table) | |
162 | return -1; | |
163 | if (a->table > b->table) | |
164 | return 1; | |
165 | ||
2ce40956 | 166 | return memcmp(&a->dst, &b->dst, FAMILY_ADDRESS_SIZE(a->family)); |
bb7ae737 TG |
167 | default: |
168 | /* treat any other address family as AF_UNSPEC */ | |
169 | return 0; | |
170 | } | |
171 | } | |
172 | ||
173 | static const struct hash_ops route_hash_ops = { | |
174 | .hash = route_hash_func, | |
175 | .compare = route_compare_func | |
176 | }; | |
177 | ||
1c8e710c TG |
178 | int route_get(Link *link, |
179 | int family, | |
180 | union in_addr_union *dst, | |
181 | unsigned char dst_prefixlen, | |
182 | unsigned char tos, | |
183 | uint32_t priority, | |
184 | unsigned char table, | |
185 | Route **ret) { | |
186 | Route route = { | |
187 | .family = family, | |
188 | .dst_prefixlen = dst_prefixlen, | |
189 | .tos = tos, | |
190 | .priority = priority, | |
191 | .table = table, | |
192 | }, *existing; | |
193 | ||
194 | assert(link); | |
195 | assert(dst); | |
196 | assert(ret); | |
197 | ||
198 | route.dst = *dst; | |
199 | ||
200 | existing = set_get(link->routes, &route); | |
201 | if (existing) { | |
202 | *ret = existing; | |
203 | return 1; | |
204 | } else { | |
205 | existing = set_get(link->routes_foreign, &route); | |
206 | if (!existing) | |
207 | return -ENOENT; | |
208 | } | |
209 | ||
210 | *ret = existing; | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
215 | static int route_add_internal(Link *link, Set **routes, | |
216 | int family, | |
217 | union in_addr_union *dst, | |
218 | unsigned char dst_prefixlen, | |
219 | unsigned char tos, | |
220 | uint32_t priority, | |
221 | unsigned char table, Route **ret) { | |
222 | _cleanup_route_free_ Route *route = NULL; | |
223 | int r; | |
224 | ||
225 | assert(link); | |
226 | assert(routes); | |
227 | assert(dst); | |
228 | ||
229 | r = route_new(&route); | |
230 | if (r < 0) | |
231 | return r; | |
232 | ||
233 | route->family = family; | |
234 | route->dst = *dst; | |
235 | route->dst_prefixlen = dst_prefixlen; | |
236 | route->tos = tos; | |
237 | route->priority = priority; | |
238 | route->table = table; | |
239 | ||
240 | r = set_ensure_allocated(routes, &route_hash_ops); | |
241 | if (r < 0) | |
242 | return r; | |
243 | ||
244 | r = set_put(*routes, route); | |
245 | if (r < 0) | |
246 | return r; | |
247 | ||
248 | route->link = link; | |
249 | ||
250 | if (ret) | |
251 | *ret = route; | |
252 | ||
253 | route = NULL; | |
254 | ||
255 | return 0; | |
256 | } | |
257 | ||
258 | int route_add_foreign(Link *link, | |
259 | int family, | |
260 | union in_addr_union *dst, | |
261 | unsigned char dst_prefixlen, | |
262 | unsigned char tos, | |
263 | uint32_t priority, | |
264 | unsigned char table, Route **ret) { | |
265 | return route_add_internal(link, &link->routes_foreign, family, dst, dst_prefixlen, tos, priority, table, ret); | |
266 | } | |
267 | ||
268 | int route_add(Link *link, | |
269 | int family, | |
270 | union in_addr_union *dst, | |
271 | unsigned char dst_prefixlen, | |
272 | unsigned char tos, | |
273 | uint32_t priority, | |
274 | unsigned char table, Route **ret) { | |
275 | Route *route; | |
276 | int r; | |
277 | ||
278 | r = route_get(link, family, dst, dst_prefixlen, tos, priority, table, &route); | |
279 | if (r == -ENOENT) { | |
280 | /* Route does not exist, create a new one */ | |
281 | r = route_add_internal(link, &link->routes, family, dst, dst_prefixlen, tos, priority, table, &route); | |
282 | if (r < 0) | |
283 | return r; | |
284 | } else if (r == 0) { | |
285 | /* Take over a foreign route */ | |
286 | r = set_ensure_allocated(&link->routes, &route_hash_ops); | |
287 | if (r < 0) | |
288 | return r; | |
289 | ||
290 | r = set_put(link->routes, route); | |
291 | if (r < 0) | |
292 | return r; | |
293 | ||
294 | set_remove(link->routes_foreign, route); | |
295 | } else if (r == 1) { | |
296 | /* Route exists, do nothing */ | |
297 | ; | |
298 | } else | |
299 | return r; | |
300 | ||
301 | *ret = route; | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | int route_update(Route *route, | |
307 | union in_addr_union *src, | |
308 | unsigned char src_prefixlen, | |
309 | union in_addr_union *gw, | |
310 | union in_addr_union *prefsrc, | |
311 | unsigned char scope, | |
312 | unsigned char protocol) { | |
313 | assert(route); | |
314 | assert(src); | |
315 | assert(gw); | |
316 | assert(prefsrc); | |
317 | ||
318 | route->src = *src; | |
319 | route->src_prefixlen = src_prefixlen; | |
320 | route->gw = *gw; | |
321 | route->prefsrc = *prefsrc; | |
322 | route->scope = scope; | |
323 | route->protocol = protocol; | |
324 | ||
325 | return 0; | |
326 | } | |
327 | ||
328 | void route_drop(Route *route) { | |
329 | assert(route); | |
330 | ||
331 | route_free(route); | |
332 | } | |
333 | ||
91b5f997 | 334 | int route_remove(Route *route, Link *link, |
1c4baffc | 335 | sd_netlink_message_handler_t callback) { |
4afd3348 | 336 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
5c1d3fc9 UTL |
337 | int r; |
338 | ||
339 | assert(link); | |
340 | assert(link->manager); | |
341 | assert(link->manager->rtnl); | |
342 | assert(link->ifindex > 0); | |
343 | assert(route->family == AF_INET || route->family == AF_INET6); | |
344 | ||
345 | r = sd_rtnl_message_new_route(link->manager->rtnl, &req, | |
28cc555d DW |
346 | RTM_DELROUTE, route->family, |
347 | route->protocol); | |
f647962d MS |
348 | if (r < 0) |
349 | return log_error_errno(r, "Could not create RTM_DELROUTE message: %m"); | |
5c1d3fc9 | 350 | |
2ce40956 | 351 | if (!in_addr_is_null(route->family, &route->gw)) { |
59580681 | 352 | if (route->family == AF_INET) |
2ce40956 | 353 | r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &route->gw.in); |
59580681 | 354 | else if (route->family == AF_INET6) |
2ce40956 | 355 | r = sd_netlink_message_append_in6_addr(req, RTA_GATEWAY, &route->gw.in6); |
f647962d MS |
356 | if (r < 0) |
357 | return log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m"); | |
5c1d3fc9 UTL |
358 | } |
359 | ||
360 | if (route->dst_prefixlen) { | |
361 | if (route->family == AF_INET) | |
2ce40956 | 362 | r = sd_netlink_message_append_in_addr(req, RTA_DST, &route->dst.in); |
5c1d3fc9 | 363 | else if (route->family == AF_INET6) |
2ce40956 | 364 | r = sd_netlink_message_append_in6_addr(req, RTA_DST, &route->dst.in6); |
f647962d MS |
365 | if (r < 0) |
366 | return log_error_errno(r, "Could not append RTA_DST attribute: %m"); | |
5c1d3fc9 UTL |
367 | |
368 | r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); | |
f647962d MS |
369 | if (r < 0) |
370 | return log_error_errno(r, "Could not set destination prefix length: %m"); | |
5c1d3fc9 UTL |
371 | } |
372 | ||
9e7e4408 TG |
373 | if (route->src_prefixlen) { |
374 | if (route->family == AF_INET) | |
2ce40956 | 375 | r = sd_netlink_message_append_in_addr(req, RTA_SRC, &route->src.in); |
9e7e4408 | 376 | else if (route->family == AF_INET6) |
2ce40956 | 377 | r = sd_netlink_message_append_in6_addr(req, RTA_SRC, &route->src.in6); |
9e7e4408 TG |
378 | if (r < 0) |
379 | return log_error_errno(r, "Could not append RTA_DST attribute: %m"); | |
380 | ||
381 | r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); | |
382 | if (r < 0) | |
383 | return log_error_errno(r, "Could not set source prefix length: %m"); | |
384 | } | |
385 | ||
2ce40956 | 386 | if (!in_addr_is_null(route->family, &route->prefsrc)) { |
46b0c76e | 387 | if (route->family == AF_INET) |
2ce40956 | 388 | r = sd_netlink_message_append_in_addr(req, RTA_PREFSRC, &route->prefsrc.in); |
46b0c76e | 389 | else if (route->family == AF_INET6) |
2ce40956 | 390 | r = sd_netlink_message_append_in6_addr(req, RTA_PREFSRC, &route->prefsrc.in6); |
f647962d MS |
391 | if (r < 0) |
392 | return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m"); | |
46b0c76e ERB |
393 | } |
394 | ||
5c1d3fc9 | 395 | r = sd_rtnl_message_route_set_scope(req, route->scope); |
f647962d MS |
396 | if (r < 0) |
397 | return log_error_errno(r, "Could not set scope: %m"); | |
5c1d3fc9 | 398 | |
86655331 | 399 | r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); |
f647962d MS |
400 | if (r < 0) |
401 | return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m"); | |
5c1d3fc9 | 402 | |
1c4baffc | 403 | r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); |
f647962d MS |
404 | if (r < 0) |
405 | return log_error_errno(r, "Could not append RTA_OIF attribute: %m"); | |
5c1d3fc9 | 406 | |
1c4baffc | 407 | r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); |
f647962d MS |
408 | if (r < 0) |
409 | return log_error_errno(r, "Could not send rtnetlink message: %m"); | |
5c1d3fc9 | 410 | |
563c69c6 TG |
411 | link_ref(link); |
412 | ||
5c1d3fc9 UTL |
413 | return 0; |
414 | } | |
415 | ||
f833694d TG |
416 | int route_expire_handler(sd_event_source *s, uint64_t usec, void *userdata) { |
417 | Route *route = userdata; | |
418 | int r; | |
419 | ||
420 | assert(route); | |
421 | ||
422 | r = route_remove(route, route->link, NULL); | |
423 | if (r < 0) | |
424 | log_warning_errno(r, "Could not remove route: %m"); | |
425 | ||
426 | return 1; | |
427 | } | |
428 | ||
f882c247 | 429 | int route_configure(Route *route, Link *link, |
1c4baffc | 430 | sd_netlink_message_handler_t callback) { |
4afd3348 LP |
431 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
432 | _cleanup_(sd_event_source_unrefp) sd_event_source *expire = NULL; | |
f833694d | 433 | usec_t lifetime; |
f579559b TG |
434 | int r; |
435 | ||
f579559b | 436 | assert(link); |
f882c247 TG |
437 | assert(link->manager); |
438 | assert(link->manager->rtnl); | |
f579559b TG |
439 | assert(link->ifindex > 0); |
440 | assert(route->family == AF_INET || route->family == AF_INET6); | |
441 | ||
151b9b96 | 442 | r = sd_rtnl_message_new_route(link->manager->rtnl, &req, |
28cc555d DW |
443 | RTM_NEWROUTE, route->family, |
444 | route->protocol); | |
f647962d MS |
445 | if (r < 0) |
446 | return log_error_errno(r, "Could not create RTM_NEWROUTE message: %m"); | |
f579559b | 447 | |
2ce40956 | 448 | if (!in_addr_is_null(route->family, &route->gw)) { |
59580681 | 449 | if (route->family == AF_INET) |
2ce40956 | 450 | r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &route->gw.in); |
59580681 | 451 | else if (route->family == AF_INET6) |
2ce40956 | 452 | r = sd_netlink_message_append_in6_addr(req, RTA_GATEWAY, &route->gw.in6); |
f647962d MS |
453 | if (r < 0) |
454 | return log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m"); | |
f579559b TG |
455 | } |
456 | ||
0a0dc69b TG |
457 | if (route->dst_prefixlen) { |
458 | if (route->family == AF_INET) | |
2ce40956 | 459 | r = sd_netlink_message_append_in_addr(req, RTA_DST, &route->dst.in); |
0a0dc69b | 460 | else if (route->family == AF_INET6) |
2ce40956 | 461 | r = sd_netlink_message_append_in6_addr(req, RTA_DST, &route->dst.in6); |
f647962d MS |
462 | if (r < 0) |
463 | return log_error_errno(r, "Could not append RTA_DST attribute: %m"); | |
6ae115c1 | 464 | |
ae4c67a7 | 465 | r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); |
f647962d MS |
466 | if (r < 0) |
467 | return log_error_errno(r, "Could not set destination prefix length: %m"); | |
1f01fb4f TG |
468 | } |
469 | ||
9e7e4408 TG |
470 | if (route->src_prefixlen) { |
471 | if (route->family == AF_INET) | |
2ce40956 | 472 | r = sd_netlink_message_append_in_addr(req, RTA_SRC, &route->src.in); |
9e7e4408 | 473 | else if (route->family == AF_INET6) |
2ce40956 | 474 | r = sd_netlink_message_append_in6_addr(req, RTA_SRC, &route->src.in6); |
9e7e4408 TG |
475 | if (r < 0) |
476 | return log_error_errno(r, "Could not append RTA_SRC attribute: %m"); | |
477 | ||
478 | r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); | |
479 | if (r < 0) | |
480 | return log_error_errno(r, "Could not set source prefix length: %m"); | |
481 | } | |
482 | ||
2ce40956 | 483 | if (!in_addr_is_null(route->family, &route->prefsrc)) { |
46b0c76e | 484 | if (route->family == AF_INET) |
2ce40956 | 485 | r = sd_netlink_message_append_in_addr(req, RTA_PREFSRC, &route->prefsrc.in); |
46b0c76e | 486 | else if (route->family == AF_INET6) |
2ce40956 | 487 | r = sd_netlink_message_append_in6_addr(req, RTA_PREFSRC, &route->prefsrc.in6); |
f647962d MS |
488 | if (r < 0) |
489 | return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m"); | |
46b0c76e ERB |
490 | } |
491 | ||
5c1d3fc9 | 492 | r = sd_rtnl_message_route_set_scope(req, route->scope); |
f647962d MS |
493 | if (r < 0) |
494 | return log_error_errno(r, "Could not set scope: %m"); | |
5c1d3fc9 | 495 | |
3b015d40 TG |
496 | r = sd_rtnl_message_route_set_flags(req, route->flags); |
497 | if (r < 0) | |
498 | return log_error_errno(r, "Colud not set flags: %m"); | |
499 | ||
86655331 | 500 | r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); |
f647962d MS |
501 | if (r < 0) |
502 | return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m"); | |
5c1d3fc9 | 503 | |
3b015d40 TG |
504 | r = sd_netlink_message_append_u8(req, RTA_PREF, route->pref); |
505 | if (r < 0) | |
506 | return log_error_errno(r, "Could not append RTA_PREF attribute: %m"); | |
507 | ||
1c4baffc | 508 | r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); |
f647962d MS |
509 | if (r < 0) |
510 | return log_error_errno(r, "Could not append RTA_OIF attribute: %m"); | |
f579559b | 511 | |
1c4baffc | 512 | r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); |
f647962d MS |
513 | if (r < 0) |
514 | return log_error_errno(r, "Could not send rtnetlink message: %m"); | |
f579559b | 515 | |
563c69c6 TG |
516 | link_ref(link); |
517 | ||
f833694d TG |
518 | lifetime = route->lifetime; |
519 | ||
520 | r = route_add(link, route->family, &route->dst, route->dst_prefixlen, route->tos, route->priority, route->table, &route); | |
1c8e710c TG |
521 | if (r < 0) |
522 | return log_error_errno(r, "Could not add route: %m"); | |
523 | ||
f833694d TG |
524 | /* TODO: drop expiration handling once it can be pushed into the kernel */ |
525 | route->lifetime = lifetime; | |
526 | ||
527 | if (route->lifetime != USEC_INFINITY) { | |
528 | r = sd_event_add_time(link->manager->event, &expire, clock_boottime_or_monotonic(), | |
529 | route->lifetime, 0, route_expire_handler, route); | |
530 | if (r < 0) | |
531 | return log_error_errno(r, "Could not arm expiration timer: %m"); | |
532 | } | |
533 | ||
534 | sd_event_source_unref(route->expire); | |
535 | route->expire = expire; | |
536 | expire = NULL; | |
537 | ||
f579559b TG |
538 | return 0; |
539 | } | |
540 | ||
541 | int config_parse_gateway(const char *unit, | |
542 | const char *filename, | |
543 | unsigned line, | |
544 | const char *section, | |
71a61510 | 545 | unsigned section_line, |
f579559b TG |
546 | const char *lvalue, |
547 | int ltype, | |
548 | const char *rvalue, | |
549 | void *data, | |
550 | void *userdata) { | |
44e7b949 | 551 | |
6ae115c1 | 552 | Network *network = userdata; |
f579559b | 553 | _cleanup_route_free_ Route *n = NULL; |
44e7b949 LP |
554 | union in_addr_union buffer; |
555 | int r, f; | |
f579559b TG |
556 | |
557 | assert(filename); | |
6ae115c1 | 558 | assert(section); |
f579559b TG |
559 | assert(lvalue); |
560 | assert(rvalue); | |
561 | assert(data); | |
562 | ||
92fe133a TG |
563 | if (streq(section, "Network")) { |
564 | /* we are not in an Route section, so treat | |
565 | * this as the special '0' section */ | |
566 | section_line = 0; | |
567 | } | |
568 | ||
f048a16b | 569 | r = route_new_static(network, section_line, &n); |
f579559b TG |
570 | if (r < 0) |
571 | return r; | |
572 | ||
44e7b949 | 573 | r = in_addr_from_string_auto(rvalue, &f, &buffer); |
f579559b | 574 | if (r < 0) { |
12ca818f | 575 | log_syntax(unit, LOG_ERR, filename, line, r, "Route is invalid, ignoring assignment: %s", rvalue); |
f579559b TG |
576 | return 0; |
577 | } | |
578 | ||
44e7b949 | 579 | n->family = f; |
2ce40956 | 580 | n->gw = buffer; |
f579559b TG |
581 | n = NULL; |
582 | ||
583 | return 0; | |
584 | } | |
6ae115c1 | 585 | |
0d07e595 JK |
586 | int config_parse_preferred_src(const char *unit, |
587 | const char *filename, | |
588 | unsigned line, | |
589 | const char *section, | |
590 | unsigned section_line, | |
591 | const char *lvalue, | |
592 | int ltype, | |
593 | const char *rvalue, | |
594 | void *data, | |
595 | void *userdata) { | |
596 | ||
597 | Network *network = userdata; | |
598 | _cleanup_route_free_ Route *n = NULL; | |
599 | union in_addr_union buffer; | |
600 | int r, f; | |
601 | ||
602 | assert(filename); | |
603 | assert(section); | |
604 | assert(lvalue); | |
605 | assert(rvalue); | |
606 | assert(data); | |
607 | ||
608 | r = route_new_static(network, section_line, &n); | |
609 | if (r < 0) | |
610 | return r; | |
611 | ||
612 | r = in_addr_from_string_auto(rvalue, &f, &buffer); | |
613 | if (r < 0) { | |
614 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
615 | "Preferred source is invalid, ignoring assignment: %s", rvalue); | |
616 | return 0; | |
617 | } | |
618 | ||
619 | n->family = f; | |
2ce40956 | 620 | n->prefsrc = buffer; |
0d07e595 JK |
621 | n = NULL; |
622 | ||
623 | return 0; | |
624 | } | |
625 | ||
6ae115c1 TG |
626 | int config_parse_destination(const char *unit, |
627 | const char *filename, | |
628 | unsigned line, | |
629 | const char *section, | |
630 | unsigned section_line, | |
631 | const char *lvalue, | |
632 | int ltype, | |
633 | const char *rvalue, | |
634 | void *data, | |
635 | void *userdata) { | |
44e7b949 | 636 | |
6ae115c1 TG |
637 | Network *network = userdata; |
638 | _cleanup_route_free_ Route *n = NULL; | |
44e7b949 LP |
639 | const char *address, *e; |
640 | union in_addr_union buffer; | |
9e7e4408 | 641 | unsigned char prefixlen; |
44e7b949 | 642 | int r, f; |
6ae115c1 TG |
643 | |
644 | assert(filename); | |
645 | assert(section); | |
646 | assert(lvalue); | |
647 | assert(rvalue); | |
648 | assert(data); | |
649 | ||
f048a16b | 650 | r = route_new_static(network, section_line, &n); |
6ae115c1 TG |
651 | if (r < 0) |
652 | return r; | |
653 | ||
9e7e4408 | 654 | /* Destination|Source=address/prefixlen */ |
6ae115c1 | 655 | |
ae4c67a7 | 656 | /* address */ |
6ae115c1 | 657 | e = strchr(rvalue, '/'); |
44e7b949 LP |
658 | if (e) |
659 | address = strndupa(rvalue, e - rvalue); | |
660 | else | |
661 | address = rvalue; | |
6ae115c1 | 662 | |
44e7b949 | 663 | r = in_addr_from_string_auto(address, &f, &buffer); |
6ae115c1 | 664 | if (r < 0) { |
12ca818f | 665 | log_syntax(unit, LOG_ERR, filename, line, r, "Destination is invalid, ignoring assignment: %s", address); |
6ae115c1 TG |
666 | return 0; |
667 | } | |
668 | ||
935c0d26 | 669 | if (f != AF_INET && f != AF_INET6) { |
12ca818f | 670 | log_syntax(unit, LOG_ERR, filename, line, 0, "Unknown address family, ignoring assignment: %s", address); |
935c0d26 TG |
671 | return 0; |
672 | } | |
673 | ||
ae4c67a7 TG |
674 | /* prefixlen */ |
675 | if (e) { | |
9e7e4408 | 676 | r = safe_atou8(e + 1, &prefixlen); |
ae4c67a7 | 677 | if (r < 0) { |
12ca818f | 678 | log_syntax(unit, LOG_ERR, filename, line, r, "Route destination prefix length is invalid, ignoring assignment: %s", e + 1); |
ae4c67a7 TG |
679 | return 0; |
680 | } | |
ae4c67a7 | 681 | } else { |
935c0d26 | 682 | switch (f) { |
ae4c67a7 | 683 | case AF_INET: |
9e7e4408 | 684 | prefixlen = 32; |
ae4c67a7 TG |
685 | break; |
686 | case AF_INET6: | |
9e7e4408 | 687 | prefixlen = 128; |
ae4c67a7 TG |
688 | break; |
689 | } | |
690 | } | |
691 | ||
44e7b949 | 692 | n->family = f; |
9e7e4408 | 693 | if (streq(lvalue, "Destination")) { |
2ce40956 | 694 | n->dst = buffer; |
9e7e4408 TG |
695 | n->dst_prefixlen = prefixlen; |
696 | } else if (streq(lvalue, "Source")) { | |
2ce40956 | 697 | n->src = buffer; |
9e7e4408 TG |
698 | n->src_prefixlen = prefixlen; |
699 | } else | |
700 | assert_not_reached(lvalue); | |
701 | ||
6ae115c1 TG |
702 | n = NULL; |
703 | ||
704 | return 0; | |
705 | } | |
5d8e593d SS |
706 | |
707 | int config_parse_route_priority(const char *unit, | |
708 | const char *filename, | |
709 | unsigned line, | |
710 | const char *section, | |
711 | unsigned section_line, | |
712 | const char *lvalue, | |
713 | int ltype, | |
714 | const char *rvalue, | |
715 | void *data, | |
716 | void *userdata) { | |
717 | Network *network = userdata; | |
718 | _cleanup_route_free_ Route *n = NULL; | |
5d8e593d SS |
719 | int r; |
720 | ||
721 | assert(filename); | |
722 | assert(section); | |
723 | assert(lvalue); | |
724 | assert(rvalue); | |
725 | assert(data); | |
726 | ||
727 | r = route_new_static(network, section_line, &n); | |
728 | if (r < 0) | |
729 | return r; | |
730 | ||
86655331 TG |
731 | r = config_parse_uint32(unit, filename, line, section, |
732 | section_line, lvalue, ltype, | |
733 | rvalue, &n->priority, userdata); | |
5d8e593d SS |
734 | if (r < 0) |
735 | return r; | |
736 | ||
737 | n = NULL; | |
738 | ||
739 | return 0; | |
740 | } | |
769b56a3 TG |
741 | |
742 | int config_parse_route_scope(const char *unit, | |
743 | const char *filename, | |
744 | unsigned line, | |
745 | const char *section, | |
746 | unsigned section_line, | |
747 | const char *lvalue, | |
748 | int ltype, | |
749 | const char *rvalue, | |
750 | void *data, | |
751 | void *userdata) { | |
752 | Network *network = userdata; | |
753 | _cleanup_route_free_ Route *n = NULL; | |
754 | int r; | |
755 | ||
756 | assert(filename); | |
757 | assert(section); | |
758 | assert(lvalue); | |
759 | assert(rvalue); | |
760 | assert(data); | |
761 | ||
762 | r = route_new_static(network, section_line, &n); | |
763 | if (r < 0) | |
764 | return r; | |
765 | ||
766 | if (streq(rvalue, "host")) | |
767 | n->scope = RT_SCOPE_HOST; | |
768 | else if (streq(rvalue, "link")) | |
769 | n->scope = RT_SCOPE_LINK; | |
770 | else if (streq(rvalue, "global")) | |
771 | n->scope = RT_SCOPE_UNIVERSE; | |
772 | else { | |
12ca818f | 773 | log_syntax(unit, LOG_ERR, filename, line, 0, "Unknown route scope: %s", rvalue); |
769b56a3 TG |
774 | return 0; |
775 | } | |
776 | ||
777 | n = NULL; | |
778 | ||
779 | return 0; | |
780 | } |