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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" |
f833694d | 24 | #include "event-util.h" |
bb7ae737 | 25 | #include "in-addr-util.h" |
fc2f9534 | 26 | #include "netlink-util.h" |
6bedfcbb | 27 | #include "networkd-route.h" |
fc2f9534 | 28 | #include "networkd.h" |
6bedfcbb | 29 | #include "parse-util.h" |
1c8e710c | 30 | #include "set.h" |
07630cea LP |
31 | #include "string-util.h" |
32 | #include "util.h" | |
f579559b | 33 | |
ed9e361a | 34 | int route_new(Route **ret) { |
f0213e37 TG |
35 | _cleanup_route_free_ Route *route = NULL; |
36 | ||
37 | route = new0(Route, 1); | |
38 | if (!route) | |
39 | return -ENOMEM; | |
40 | ||
41 | route->family = AF_UNSPEC; | |
42 | route->scope = RT_SCOPE_UNIVERSE; | |
ed9e361a | 43 | route->protocol = RTPROT_UNSPEC; |
bb7ae737 | 44 | route->table = RT_TABLE_DEFAULT; |
f833694d | 45 | route->lifetime = USEC_INFINITY; |
f0213e37 TG |
46 | |
47 | *ret = route; | |
48 | route = NULL; | |
49 | ||
50 | return 0; | |
51 | } | |
52 | ||
f048a16b | 53 | int route_new_static(Network *network, unsigned section, Route **ret) { |
f579559b | 54 | _cleanup_route_free_ Route *route = NULL; |
f0213e37 | 55 | int r; |
f579559b | 56 | |
6ae115c1 | 57 | if (section) { |
16aa63a0 TG |
58 | route = hashmap_get(network->routes_by_section, |
59 | UINT_TO_PTR(section)); | |
6ae115c1 TG |
60 | if (route) { |
61 | *ret = route; | |
62 | route = NULL; | |
63 | ||
64 | return 0; | |
65 | } | |
66 | } | |
67 | ||
ed9e361a | 68 | r = route_new(&route); |
f0213e37 TG |
69 | if (r < 0) |
70 | return r; | |
801bd9e8 | 71 | |
ed9e361a | 72 | route->protocol = RTPROT_STATIC; |
f579559b TG |
73 | route->network = network; |
74 | ||
3d3d4255 | 75 | LIST_PREPEND(routes, network->static_routes, route); |
f579559b | 76 | |
6ae115c1 TG |
77 | if (section) { |
78 | route->section = section; | |
16aa63a0 TG |
79 | hashmap_put(network->routes_by_section, |
80 | UINT_TO_PTR(route->section), route); | |
6ae115c1 TG |
81 | } |
82 | ||
f579559b TG |
83 | *ret = route; |
84 | route = NULL; | |
85 | ||
86 | return 0; | |
87 | } | |
88 | ||
89 | void route_free(Route *route) { | |
90 | if (!route) | |
91 | return; | |
92 | ||
f048a16b | 93 | if (route->network) { |
3d3d4255 | 94 | LIST_REMOVE(routes, route->network->static_routes, route); |
f579559b | 95 | |
f048a16b TG |
96 | if (route->section) |
97 | hashmap_remove(route->network->routes_by_section, | |
16aa63a0 | 98 | UINT_TO_PTR(route->section)); |
f048a16b | 99 | } |
6ae115c1 | 100 | |
1c8e710c TG |
101 | if (route->link) { |
102 | set_remove(route->link->routes, route); | |
103 | set_remove(route->link->routes_foreign, route); | |
104 | } | |
105 | ||
f833694d TG |
106 | sd_event_source_unref(route->expire); |
107 | ||
f579559b TG |
108 | free(route); |
109 | } | |
110 | ||
bb7ae737 TG |
111 | static void route_hash_func(const void *b, struct siphash *state) { |
112 | const Route *route = b; | |
113 | ||
114 | assert(route); | |
115 | ||
116 | siphash24_compress(&route->family, sizeof(route->family), state); | |
117 | ||
118 | switch (route->family) { | |
119 | case AF_INET: | |
120 | case AF_INET6: | |
121 | /* Equality of routes are given by the 4-touple | |
122 | (dst_prefix,dst_prefixlen,tos,priority,table) */ | |
2ce40956 | 123 | siphash24_compress(&route->dst, FAMILY_ADDRESS_SIZE(route->family), state); |
bb7ae737 TG |
124 | siphash24_compress(&route->dst_prefixlen, sizeof(route->dst_prefixlen), state); |
125 | siphash24_compress(&route->tos, sizeof(route->tos), state); | |
126 | siphash24_compress(&route->priority, sizeof(route->priority), state); | |
127 | siphash24_compress(&route->table, sizeof(route->table), state); | |
128 | ||
129 | break; | |
130 | default: | |
131 | /* treat any other address family as AF_UNSPEC */ | |
132 | break; | |
133 | } | |
134 | } | |
135 | ||
136 | static int route_compare_func(const void *_a, const void *_b) { | |
137 | const Route *a = _a, *b = _b; | |
138 | ||
139 | if (a->family < b->family) | |
140 | return -1; | |
141 | if (a->family > b->family) | |
142 | return 1; | |
143 | ||
144 | switch (a->family) { | |
145 | case AF_INET: | |
146 | case AF_INET6: | |
bb7ae737 TG |
147 | if (a->dst_prefixlen < b->dst_prefixlen) |
148 | return -1; | |
149 | if (a->dst_prefixlen > b->dst_prefixlen) | |
150 | return 1; | |
151 | ||
152 | if (a->tos < b->tos) | |
153 | return -1; | |
154 | if (a->tos > b->tos) | |
155 | return 1; | |
156 | ||
157 | if (a->priority < b->priority) | |
158 | return -1; | |
159 | if (a->priority > b->priority) | |
160 | return 1; | |
161 | ||
162 | if (a->table < b->table) | |
163 | return -1; | |
164 | if (a->table > b->table) | |
165 | return 1; | |
166 | ||
2ce40956 | 167 | return memcmp(&a->dst, &b->dst, FAMILY_ADDRESS_SIZE(a->family)); |
bb7ae737 TG |
168 | default: |
169 | /* treat any other address family as AF_UNSPEC */ | |
170 | return 0; | |
171 | } | |
172 | } | |
173 | ||
174 | static const struct hash_ops route_hash_ops = { | |
175 | .hash = route_hash_func, | |
176 | .compare = route_compare_func | |
177 | }; | |
178 | ||
1c8e710c TG |
179 | int route_get(Link *link, |
180 | int family, | |
181 | union in_addr_union *dst, | |
182 | unsigned char dst_prefixlen, | |
183 | unsigned char tos, | |
184 | uint32_t priority, | |
185 | unsigned char table, | |
186 | Route **ret) { | |
187 | Route route = { | |
188 | .family = family, | |
189 | .dst_prefixlen = dst_prefixlen, | |
190 | .tos = tos, | |
191 | .priority = priority, | |
192 | .table = table, | |
193 | }, *existing; | |
194 | ||
195 | assert(link); | |
196 | assert(dst); | |
197 | assert(ret); | |
198 | ||
199 | route.dst = *dst; | |
200 | ||
201 | existing = set_get(link->routes, &route); | |
202 | if (existing) { | |
203 | *ret = existing; | |
204 | return 1; | |
205 | } else { | |
206 | existing = set_get(link->routes_foreign, &route); | |
207 | if (!existing) | |
208 | return -ENOENT; | |
209 | } | |
210 | ||
211 | *ret = existing; | |
212 | ||
213 | return 0; | |
214 | } | |
215 | ||
216 | static int route_add_internal(Link *link, Set **routes, | |
217 | int family, | |
218 | union in_addr_union *dst, | |
219 | unsigned char dst_prefixlen, | |
220 | unsigned char tos, | |
221 | uint32_t priority, | |
222 | unsigned char table, Route **ret) { | |
223 | _cleanup_route_free_ Route *route = NULL; | |
224 | int r; | |
225 | ||
226 | assert(link); | |
227 | assert(routes); | |
228 | assert(dst); | |
229 | ||
230 | r = route_new(&route); | |
231 | if (r < 0) | |
232 | return r; | |
233 | ||
234 | route->family = family; | |
235 | route->dst = *dst; | |
236 | route->dst_prefixlen = dst_prefixlen; | |
237 | route->tos = tos; | |
238 | route->priority = priority; | |
239 | route->table = table; | |
240 | ||
241 | r = set_ensure_allocated(routes, &route_hash_ops); | |
242 | if (r < 0) | |
243 | return r; | |
244 | ||
245 | r = set_put(*routes, route); | |
246 | if (r < 0) | |
247 | return r; | |
248 | ||
249 | route->link = link; | |
250 | ||
251 | if (ret) | |
252 | *ret = route; | |
253 | ||
254 | route = NULL; | |
255 | ||
256 | return 0; | |
257 | } | |
258 | ||
259 | int route_add_foreign(Link *link, | |
260 | int family, | |
261 | union in_addr_union *dst, | |
262 | unsigned char dst_prefixlen, | |
263 | unsigned char tos, | |
264 | uint32_t priority, | |
265 | unsigned char table, Route **ret) { | |
266 | return route_add_internal(link, &link->routes_foreign, family, dst, dst_prefixlen, tos, priority, table, ret); | |
267 | } | |
268 | ||
269 | int route_add(Link *link, | |
270 | int family, | |
271 | union in_addr_union *dst, | |
272 | unsigned char dst_prefixlen, | |
273 | unsigned char tos, | |
274 | uint32_t priority, | |
275 | unsigned char table, Route **ret) { | |
276 | Route *route; | |
277 | int r; | |
278 | ||
279 | r = route_get(link, family, dst, dst_prefixlen, tos, priority, table, &route); | |
280 | if (r == -ENOENT) { | |
281 | /* Route does not exist, create a new one */ | |
282 | r = route_add_internal(link, &link->routes, family, dst, dst_prefixlen, tos, priority, table, &route); | |
283 | if (r < 0) | |
284 | return r; | |
285 | } else if (r == 0) { | |
286 | /* Take over a foreign route */ | |
287 | r = set_ensure_allocated(&link->routes, &route_hash_ops); | |
288 | if (r < 0) | |
289 | return r; | |
290 | ||
291 | r = set_put(link->routes, route); | |
292 | if (r < 0) | |
293 | return r; | |
294 | ||
295 | set_remove(link->routes_foreign, route); | |
296 | } else if (r == 1) { | |
297 | /* Route exists, do nothing */ | |
298 | ; | |
299 | } else | |
300 | return r; | |
301 | ||
302 | *ret = route; | |
303 | ||
304 | return 0; | |
305 | } | |
306 | ||
307 | int route_update(Route *route, | |
308 | union in_addr_union *src, | |
309 | unsigned char src_prefixlen, | |
310 | union in_addr_union *gw, | |
311 | union in_addr_union *prefsrc, | |
312 | unsigned char scope, | |
313 | unsigned char protocol) { | |
314 | assert(route); | |
315 | assert(src); | |
316 | assert(gw); | |
317 | assert(prefsrc); | |
318 | ||
319 | route->src = *src; | |
320 | route->src_prefixlen = src_prefixlen; | |
321 | route->gw = *gw; | |
322 | route->prefsrc = *prefsrc; | |
323 | route->scope = scope; | |
324 | route->protocol = protocol; | |
325 | ||
326 | return 0; | |
327 | } | |
328 | ||
329 | void route_drop(Route *route) { | |
330 | assert(route); | |
331 | ||
332 | route_free(route); | |
333 | } | |
334 | ||
91b5f997 | 335 | int route_remove(Route *route, Link *link, |
1c4baffc TG |
336 | sd_netlink_message_handler_t callback) { |
337 | _cleanup_netlink_message_unref_ sd_netlink_message *req = NULL; | |
5c1d3fc9 UTL |
338 | int r; |
339 | ||
340 | assert(link); | |
341 | assert(link->manager); | |
342 | assert(link->manager->rtnl); | |
343 | assert(link->ifindex > 0); | |
344 | assert(route->family == AF_INET || route->family == AF_INET6); | |
345 | ||
346 | r = sd_rtnl_message_new_route(link->manager->rtnl, &req, | |
28cc555d DW |
347 | RTM_DELROUTE, route->family, |
348 | route->protocol); | |
f647962d MS |
349 | if (r < 0) |
350 | return log_error_errno(r, "Could not create RTM_DELROUTE message: %m"); | |
5c1d3fc9 | 351 | |
2ce40956 | 352 | if (!in_addr_is_null(route->family, &route->gw)) { |
59580681 | 353 | if (route->family == AF_INET) |
2ce40956 | 354 | r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &route->gw.in); |
59580681 | 355 | else if (route->family == AF_INET6) |
2ce40956 | 356 | r = sd_netlink_message_append_in6_addr(req, RTA_GATEWAY, &route->gw.in6); |
f647962d MS |
357 | if (r < 0) |
358 | return log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m"); | |
5c1d3fc9 UTL |
359 | } |
360 | ||
361 | if (route->dst_prefixlen) { | |
362 | if (route->family == AF_INET) | |
2ce40956 | 363 | r = sd_netlink_message_append_in_addr(req, RTA_DST, &route->dst.in); |
5c1d3fc9 | 364 | else if (route->family == AF_INET6) |
2ce40956 | 365 | r = sd_netlink_message_append_in6_addr(req, RTA_DST, &route->dst.in6); |
f647962d MS |
366 | if (r < 0) |
367 | return log_error_errno(r, "Could not append RTA_DST attribute: %m"); | |
5c1d3fc9 UTL |
368 | |
369 | r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); | |
f647962d MS |
370 | if (r < 0) |
371 | return log_error_errno(r, "Could not set destination prefix length: %m"); | |
5c1d3fc9 UTL |
372 | } |
373 | ||
9e7e4408 TG |
374 | if (route->src_prefixlen) { |
375 | if (route->family == AF_INET) | |
2ce40956 | 376 | r = sd_netlink_message_append_in_addr(req, RTA_SRC, &route->src.in); |
9e7e4408 | 377 | else if (route->family == AF_INET6) |
2ce40956 | 378 | r = sd_netlink_message_append_in6_addr(req, RTA_SRC, &route->src.in6); |
9e7e4408 TG |
379 | if (r < 0) |
380 | return log_error_errno(r, "Could not append RTA_DST attribute: %m"); | |
381 | ||
382 | r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); | |
383 | if (r < 0) | |
384 | return log_error_errno(r, "Could not set source prefix length: %m"); | |
385 | } | |
386 | ||
2ce40956 | 387 | if (!in_addr_is_null(route->family, &route->prefsrc)) { |
46b0c76e | 388 | if (route->family == AF_INET) |
2ce40956 | 389 | r = sd_netlink_message_append_in_addr(req, RTA_PREFSRC, &route->prefsrc.in); |
46b0c76e | 390 | else if (route->family == AF_INET6) |
2ce40956 | 391 | r = sd_netlink_message_append_in6_addr(req, RTA_PREFSRC, &route->prefsrc.in6); |
f647962d MS |
392 | if (r < 0) |
393 | return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m"); | |
46b0c76e ERB |
394 | } |
395 | ||
5c1d3fc9 | 396 | r = sd_rtnl_message_route_set_scope(req, route->scope); |
f647962d MS |
397 | if (r < 0) |
398 | return log_error_errno(r, "Could not set scope: %m"); | |
5c1d3fc9 | 399 | |
86655331 | 400 | r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); |
f647962d MS |
401 | if (r < 0) |
402 | return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m"); | |
5c1d3fc9 | 403 | |
1c4baffc | 404 | r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); |
f647962d MS |
405 | if (r < 0) |
406 | return log_error_errno(r, "Could not append RTA_OIF attribute: %m"); | |
5c1d3fc9 | 407 | |
1c4baffc | 408 | r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); |
f647962d MS |
409 | if (r < 0) |
410 | return log_error_errno(r, "Could not send rtnetlink message: %m"); | |
5c1d3fc9 | 411 | |
563c69c6 TG |
412 | link_ref(link); |
413 | ||
5c1d3fc9 UTL |
414 | return 0; |
415 | } | |
416 | ||
f833694d TG |
417 | int route_expire_handler(sd_event_source *s, uint64_t usec, void *userdata) { |
418 | Route *route = userdata; | |
419 | int r; | |
420 | ||
421 | assert(route); | |
422 | ||
423 | r = route_remove(route, route->link, NULL); | |
424 | if (r < 0) | |
425 | log_warning_errno(r, "Could not remove route: %m"); | |
426 | ||
427 | return 1; | |
428 | } | |
429 | ||
f882c247 | 430 | int route_configure(Route *route, Link *link, |
1c4baffc TG |
431 | sd_netlink_message_handler_t callback) { |
432 | _cleanup_netlink_message_unref_ sd_netlink_message *req = NULL; | |
f833694d TG |
433 | _cleanup_event_source_unref_ sd_event_source *expire = NULL; |
434 | usec_t lifetime; | |
f579559b TG |
435 | int r; |
436 | ||
f579559b | 437 | assert(link); |
f882c247 TG |
438 | assert(link->manager); |
439 | assert(link->manager->rtnl); | |
f579559b TG |
440 | assert(link->ifindex > 0); |
441 | assert(route->family == AF_INET || route->family == AF_INET6); | |
442 | ||
151b9b96 | 443 | r = sd_rtnl_message_new_route(link->manager->rtnl, &req, |
28cc555d DW |
444 | RTM_NEWROUTE, route->family, |
445 | route->protocol); | |
f647962d MS |
446 | if (r < 0) |
447 | return log_error_errno(r, "Could not create RTM_NEWROUTE message: %m"); | |
f579559b | 448 | |
2ce40956 | 449 | if (!in_addr_is_null(route->family, &route->gw)) { |
59580681 | 450 | if (route->family == AF_INET) |
2ce40956 | 451 | r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &route->gw.in); |
59580681 | 452 | else if (route->family == AF_INET6) |
2ce40956 | 453 | r = sd_netlink_message_append_in6_addr(req, RTA_GATEWAY, &route->gw.in6); |
f647962d MS |
454 | if (r < 0) |
455 | return log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m"); | |
f579559b TG |
456 | } |
457 | ||
0a0dc69b TG |
458 | if (route->dst_prefixlen) { |
459 | if (route->family == AF_INET) | |
2ce40956 | 460 | r = sd_netlink_message_append_in_addr(req, RTA_DST, &route->dst.in); |
0a0dc69b | 461 | else if (route->family == AF_INET6) |
2ce40956 | 462 | r = sd_netlink_message_append_in6_addr(req, RTA_DST, &route->dst.in6); |
f647962d MS |
463 | if (r < 0) |
464 | return log_error_errno(r, "Could not append RTA_DST attribute: %m"); | |
6ae115c1 | 465 | |
ae4c67a7 | 466 | r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); |
f647962d MS |
467 | if (r < 0) |
468 | return log_error_errno(r, "Could not set destination prefix length: %m"); | |
1f01fb4f TG |
469 | } |
470 | ||
9e7e4408 TG |
471 | if (route->src_prefixlen) { |
472 | if (route->family == AF_INET) | |
2ce40956 | 473 | r = sd_netlink_message_append_in_addr(req, RTA_SRC, &route->src.in); |
9e7e4408 | 474 | else if (route->family == AF_INET6) |
2ce40956 | 475 | r = sd_netlink_message_append_in6_addr(req, RTA_SRC, &route->src.in6); |
9e7e4408 TG |
476 | if (r < 0) |
477 | return log_error_errno(r, "Could not append RTA_SRC attribute: %m"); | |
478 | ||
479 | r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); | |
480 | if (r < 0) | |
481 | return log_error_errno(r, "Could not set source prefix length: %m"); | |
482 | } | |
483 | ||
2ce40956 | 484 | if (!in_addr_is_null(route->family, &route->prefsrc)) { |
46b0c76e | 485 | if (route->family == AF_INET) |
2ce40956 | 486 | r = sd_netlink_message_append_in_addr(req, RTA_PREFSRC, &route->prefsrc.in); |
46b0c76e | 487 | else if (route->family == AF_INET6) |
2ce40956 | 488 | r = sd_netlink_message_append_in6_addr(req, RTA_PREFSRC, &route->prefsrc.in6); |
f647962d MS |
489 | if (r < 0) |
490 | return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m"); | |
46b0c76e ERB |
491 | } |
492 | ||
5c1d3fc9 | 493 | r = sd_rtnl_message_route_set_scope(req, route->scope); |
f647962d MS |
494 | if (r < 0) |
495 | return log_error_errno(r, "Could not set scope: %m"); | |
5c1d3fc9 | 496 | |
3b015d40 TG |
497 | r = sd_rtnl_message_route_set_flags(req, route->flags); |
498 | if (r < 0) | |
499 | return log_error_errno(r, "Colud not set flags: %m"); | |
500 | ||
86655331 | 501 | r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); |
f647962d MS |
502 | if (r < 0) |
503 | return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m"); | |
5c1d3fc9 | 504 | |
3b015d40 TG |
505 | r = sd_netlink_message_append_u8(req, RTA_PREF, route->pref); |
506 | if (r < 0) | |
507 | return log_error_errno(r, "Could not append RTA_PREF attribute: %m"); | |
508 | ||
1c4baffc | 509 | r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); |
f647962d MS |
510 | if (r < 0) |
511 | return log_error_errno(r, "Could not append RTA_OIF attribute: %m"); | |
f579559b | 512 | |
1c4baffc | 513 | r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL); |
f647962d MS |
514 | if (r < 0) |
515 | return log_error_errno(r, "Could not send rtnetlink message: %m"); | |
f579559b | 516 | |
563c69c6 TG |
517 | link_ref(link); |
518 | ||
f833694d TG |
519 | lifetime = route->lifetime; |
520 | ||
521 | r = route_add(link, route->family, &route->dst, route->dst_prefixlen, route->tos, route->priority, route->table, &route); | |
1c8e710c TG |
522 | if (r < 0) |
523 | return log_error_errno(r, "Could not add route: %m"); | |
524 | ||
f833694d TG |
525 | /* TODO: drop expiration handling once it can be pushed into the kernel */ |
526 | route->lifetime = lifetime; | |
527 | ||
528 | if (route->lifetime != USEC_INFINITY) { | |
529 | r = sd_event_add_time(link->manager->event, &expire, clock_boottime_or_monotonic(), | |
530 | route->lifetime, 0, route_expire_handler, route); | |
531 | if (r < 0) | |
532 | return log_error_errno(r, "Could not arm expiration timer: %m"); | |
533 | } | |
534 | ||
535 | sd_event_source_unref(route->expire); | |
536 | route->expire = expire; | |
537 | expire = NULL; | |
538 | ||
f579559b TG |
539 | return 0; |
540 | } | |
541 | ||
542 | int config_parse_gateway(const char *unit, | |
543 | const char *filename, | |
544 | unsigned line, | |
545 | const char *section, | |
71a61510 | 546 | unsigned section_line, |
f579559b TG |
547 | const char *lvalue, |
548 | int ltype, | |
549 | const char *rvalue, | |
550 | void *data, | |
551 | void *userdata) { | |
44e7b949 | 552 | |
6ae115c1 | 553 | Network *network = userdata; |
f579559b | 554 | _cleanup_route_free_ Route *n = NULL; |
44e7b949 LP |
555 | union in_addr_union buffer; |
556 | int r, f; | |
f579559b TG |
557 | |
558 | assert(filename); | |
6ae115c1 | 559 | assert(section); |
f579559b TG |
560 | assert(lvalue); |
561 | assert(rvalue); | |
562 | assert(data); | |
563 | ||
92fe133a TG |
564 | if (streq(section, "Network")) { |
565 | /* we are not in an Route section, so treat | |
566 | * this as the special '0' section */ | |
567 | section_line = 0; | |
568 | } | |
569 | ||
f048a16b | 570 | r = route_new_static(network, section_line, &n); |
f579559b TG |
571 | if (r < 0) |
572 | return r; | |
573 | ||
44e7b949 | 574 | r = in_addr_from_string_auto(rvalue, &f, &buffer); |
f579559b | 575 | if (r < 0) { |
12ca818f | 576 | log_syntax(unit, LOG_ERR, filename, line, r, "Route is invalid, ignoring assignment: %s", rvalue); |
f579559b TG |
577 | return 0; |
578 | } | |
579 | ||
44e7b949 | 580 | n->family = f; |
2ce40956 | 581 | n->gw = buffer; |
f579559b TG |
582 | n = NULL; |
583 | ||
584 | return 0; | |
585 | } | |
6ae115c1 | 586 | |
0d07e595 JK |
587 | int config_parse_preferred_src(const char *unit, |
588 | const char *filename, | |
589 | unsigned line, | |
590 | const char *section, | |
591 | unsigned section_line, | |
592 | const char *lvalue, | |
593 | int ltype, | |
594 | const char *rvalue, | |
595 | void *data, | |
596 | void *userdata) { | |
597 | ||
598 | Network *network = userdata; | |
599 | _cleanup_route_free_ Route *n = NULL; | |
600 | union in_addr_union buffer; | |
601 | int r, f; | |
602 | ||
603 | assert(filename); | |
604 | assert(section); | |
605 | assert(lvalue); | |
606 | assert(rvalue); | |
607 | assert(data); | |
608 | ||
609 | r = route_new_static(network, section_line, &n); | |
610 | if (r < 0) | |
611 | return r; | |
612 | ||
613 | r = in_addr_from_string_auto(rvalue, &f, &buffer); | |
614 | if (r < 0) { | |
615 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
616 | "Preferred source is invalid, ignoring assignment: %s", rvalue); | |
617 | return 0; | |
618 | } | |
619 | ||
620 | n->family = f; | |
2ce40956 | 621 | n->prefsrc = buffer; |
0d07e595 JK |
622 | n = NULL; |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
6ae115c1 TG |
627 | int config_parse_destination(const char *unit, |
628 | const char *filename, | |
629 | unsigned line, | |
630 | const char *section, | |
631 | unsigned section_line, | |
632 | const char *lvalue, | |
633 | int ltype, | |
634 | const char *rvalue, | |
635 | void *data, | |
636 | void *userdata) { | |
44e7b949 | 637 | |
6ae115c1 TG |
638 | Network *network = userdata; |
639 | _cleanup_route_free_ Route *n = NULL; | |
44e7b949 LP |
640 | const char *address, *e; |
641 | union in_addr_union buffer; | |
9e7e4408 | 642 | unsigned char prefixlen; |
44e7b949 | 643 | int r, f; |
6ae115c1 TG |
644 | |
645 | assert(filename); | |
646 | assert(section); | |
647 | assert(lvalue); | |
648 | assert(rvalue); | |
649 | assert(data); | |
650 | ||
f048a16b | 651 | r = route_new_static(network, section_line, &n); |
6ae115c1 TG |
652 | if (r < 0) |
653 | return r; | |
654 | ||
9e7e4408 | 655 | /* Destination|Source=address/prefixlen */ |
6ae115c1 | 656 | |
ae4c67a7 | 657 | /* address */ |
6ae115c1 | 658 | e = strchr(rvalue, '/'); |
44e7b949 LP |
659 | if (e) |
660 | address = strndupa(rvalue, e - rvalue); | |
661 | else | |
662 | address = rvalue; | |
6ae115c1 | 663 | |
44e7b949 | 664 | r = in_addr_from_string_auto(address, &f, &buffer); |
6ae115c1 | 665 | if (r < 0) { |
12ca818f | 666 | log_syntax(unit, LOG_ERR, filename, line, r, "Destination is invalid, ignoring assignment: %s", address); |
6ae115c1 TG |
667 | return 0; |
668 | } | |
669 | ||
935c0d26 | 670 | if (f != AF_INET && f != AF_INET6) { |
12ca818f | 671 | log_syntax(unit, LOG_ERR, filename, line, 0, "Unknown address family, ignoring assignment: %s", address); |
935c0d26 TG |
672 | return 0; |
673 | } | |
674 | ||
ae4c67a7 TG |
675 | /* prefixlen */ |
676 | if (e) { | |
9e7e4408 | 677 | r = safe_atou8(e + 1, &prefixlen); |
ae4c67a7 | 678 | if (r < 0) { |
12ca818f | 679 | log_syntax(unit, LOG_ERR, filename, line, r, "Route destination prefix length is invalid, ignoring assignment: %s", e + 1); |
ae4c67a7 TG |
680 | return 0; |
681 | } | |
ae4c67a7 | 682 | } else { |
935c0d26 | 683 | switch (f) { |
ae4c67a7 | 684 | case AF_INET: |
9e7e4408 | 685 | prefixlen = 32; |
ae4c67a7 TG |
686 | break; |
687 | case AF_INET6: | |
9e7e4408 | 688 | prefixlen = 128; |
ae4c67a7 TG |
689 | break; |
690 | } | |
691 | } | |
692 | ||
44e7b949 | 693 | n->family = f; |
9e7e4408 | 694 | if (streq(lvalue, "Destination")) { |
2ce40956 | 695 | n->dst = buffer; |
9e7e4408 TG |
696 | n->dst_prefixlen = prefixlen; |
697 | } else if (streq(lvalue, "Source")) { | |
2ce40956 | 698 | n->src = buffer; |
9e7e4408 TG |
699 | n->src_prefixlen = prefixlen; |
700 | } else | |
701 | assert_not_reached(lvalue); | |
702 | ||
6ae115c1 TG |
703 | n = NULL; |
704 | ||
705 | return 0; | |
706 | } | |
5d8e593d SS |
707 | |
708 | int config_parse_route_priority(const char *unit, | |
709 | const char *filename, | |
710 | unsigned line, | |
711 | const char *section, | |
712 | unsigned section_line, | |
713 | const char *lvalue, | |
714 | int ltype, | |
715 | const char *rvalue, | |
716 | void *data, | |
717 | void *userdata) { | |
718 | Network *network = userdata; | |
719 | _cleanup_route_free_ Route *n = NULL; | |
5d8e593d SS |
720 | int r; |
721 | ||
722 | assert(filename); | |
723 | assert(section); | |
724 | assert(lvalue); | |
725 | assert(rvalue); | |
726 | assert(data); | |
727 | ||
728 | r = route_new_static(network, section_line, &n); | |
729 | if (r < 0) | |
730 | return r; | |
731 | ||
86655331 TG |
732 | r = config_parse_uint32(unit, filename, line, section, |
733 | section_line, lvalue, ltype, | |
734 | rvalue, &n->priority, userdata); | |
5d8e593d SS |
735 | if (r < 0) |
736 | return r; | |
737 | ||
738 | n = NULL; | |
739 | ||
740 | return 0; | |
741 | } | |
769b56a3 TG |
742 | |
743 | int config_parse_route_scope(const char *unit, | |
744 | const char *filename, | |
745 | unsigned line, | |
746 | const char *section, | |
747 | unsigned section_line, | |
748 | const char *lvalue, | |
749 | int ltype, | |
750 | const char *rvalue, | |
751 | void *data, | |
752 | void *userdata) { | |
753 | Network *network = userdata; | |
754 | _cleanup_route_free_ Route *n = NULL; | |
755 | int r; | |
756 | ||
757 | assert(filename); | |
758 | assert(section); | |
759 | assert(lvalue); | |
760 | assert(rvalue); | |
761 | assert(data); | |
762 | ||
763 | r = route_new_static(network, section_line, &n); | |
764 | if (r < 0) | |
765 | return r; | |
766 | ||
767 | if (streq(rvalue, "host")) | |
768 | n->scope = RT_SCOPE_HOST; | |
769 | else if (streq(rvalue, "link")) | |
770 | n->scope = RT_SCOPE_LINK; | |
771 | else if (streq(rvalue, "global")) | |
772 | n->scope = RT_SCOPE_UNIVERSE; | |
773 | else { | |
12ca818f | 774 | log_syntax(unit, LOG_ERR, filename, line, 0, "Unknown route scope: %s", rvalue); |
769b56a3 TG |
775 | return 0; |
776 | } | |
777 | ||
778 | n = NULL; | |
779 | ||
780 | return 0; | |
781 | } |