]>
Commit | Line | Data |
---|---|---|
53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
f579559b | 2 | |
b5bf6f64 SS |
3 | #include <linux/icmpv6.h> |
4 | ||
b5efdb8a | 5 | #include "alloc-util.h" |
f579559b | 6 | #include "conf-parser.h" |
bb7ae737 | 7 | #include "in-addr-util.h" |
36dd5ffd | 8 | #include "missing_network.h" |
fc2f9534 | 9 | #include "netlink-util.h" |
23f53b99 | 10 | #include "networkd-manager.h" |
6bedfcbb | 11 | #include "networkd-route.h" |
6bedfcbb | 12 | #include "parse-util.h" |
1c8e710c | 13 | #include "set.h" |
07630cea | 14 | #include "string-util.h" |
47d2d30d | 15 | #include "sysctl-util.h" |
07630cea | 16 | #include "util.h" |
f579559b | 17 | |
47d2d30d ZJS |
18 | #define ROUTES_DEFAULT_MAX_PER_FAMILY 4096U |
19 | ||
20 | static unsigned routes_max(void) { | |
21 | static thread_local unsigned cached = 0; | |
22 | ||
23 | _cleanup_free_ char *s4 = NULL, *s6 = NULL; | |
24 | unsigned val4 = ROUTES_DEFAULT_MAX_PER_FAMILY, val6 = ROUTES_DEFAULT_MAX_PER_FAMILY; | |
25 | ||
26 | if (cached > 0) | |
27 | return cached; | |
28 | ||
29 | if (sysctl_read("net/ipv4/route/max_size", &s4) >= 0) { | |
30 | truncate_nl(s4); | |
31 | if (safe_atou(s4, &val4) >= 0 && | |
32 | val4 == 2147483647U) | |
33 | /* This is the default "no limit" value in the kernel */ | |
34 | val4 = ROUTES_DEFAULT_MAX_PER_FAMILY; | |
35 | } | |
36 | ||
37 | if (sysctl_read("net/ipv6/route/max_size", &s6) >= 0) { | |
38 | truncate_nl(s6); | |
39 | (void) safe_atou(s6, &val6); | |
40 | } | |
41 | ||
42 | cached = MAX(ROUTES_DEFAULT_MAX_PER_FAMILY, val4) + | |
43 | MAX(ROUTES_DEFAULT_MAX_PER_FAMILY, val6); | |
44 | return cached; | |
45 | } | |
8c34b963 | 46 | |
ed9e361a | 47 | int route_new(Route **ret) { |
8e766630 | 48 | _cleanup_(route_freep) Route *route = NULL; |
f0213e37 | 49 | |
17f9c355 | 50 | route = new(Route, 1); |
f0213e37 TG |
51 | if (!route) |
52 | return -ENOMEM; | |
53 | ||
17f9c355 YW |
54 | *route = (Route) { |
55 | .family = AF_UNSPEC, | |
56 | .scope = RT_SCOPE_UNIVERSE, | |
57 | .protocol = RTPROT_UNSPEC, | |
58 | .type = RTN_UNICAST, | |
59 | .table = RT_TABLE_MAIN, | |
60 | .lifetime = USEC_INFINITY, | |
61 | .quickack = -1, | |
54901fd2 | 62 | .gateway_onlink = -1, |
17f9c355 | 63 | }; |
f0213e37 | 64 | |
1cc6c93a | 65 | *ret = TAKE_PTR(route); |
f0213e37 TG |
66 | |
67 | return 0; | |
68 | } | |
69 | ||
9560e5b3 | 70 | static int route_new_static(Network *network, const char *filename, unsigned section_line, Route **ret) { |
8e766630 LP |
71 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
72 | _cleanup_(route_freep) Route *route = NULL; | |
f0213e37 | 73 | int r; |
f579559b | 74 | |
8c34b963 LP |
75 | assert(network); |
76 | assert(ret); | |
48317c39 | 77 | assert(!!filename == (section_line > 0)); |
8c34b963 | 78 | |
48317c39 | 79 | if (filename) { |
f4859fc7 SS |
80 | r = network_config_section_new(filename, section_line, &n); |
81 | if (r < 0) | |
82 | return r; | |
83 | ||
84 | route = hashmap_get(network->routes_by_section, n); | |
6ae115c1 | 85 | if (route) { |
1cc6c93a | 86 | *ret = TAKE_PTR(route); |
6ae115c1 TG |
87 | |
88 | return 0; | |
89 | } | |
90 | } | |
91 | ||
47d2d30d | 92 | if (network->n_static_routes >= routes_max()) |
8c34b963 LP |
93 | return -E2BIG; |
94 | ||
ed9e361a | 95 | r = route_new(&route); |
f0213e37 TG |
96 | if (r < 0) |
97 | return r; | |
801bd9e8 | 98 | |
ed9e361a | 99 | route->protocol = RTPROT_STATIC; |
0f7f2769 YW |
100 | route->network = network; |
101 | LIST_PREPEND(routes, network->static_routes, route); | |
102 | network->n_static_routes++; | |
f579559b | 103 | |
48317c39 | 104 | if (filename) { |
1cc6c93a | 105 | route->section = TAKE_PTR(n); |
cacc1dbf | 106 | |
3e570042 YW |
107 | r = hashmap_ensure_allocated(&network->routes_by_section, &network_config_hash_ops); |
108 | if (r < 0) | |
109 | return r; | |
110 | ||
fcc48287 | 111 | r = hashmap_put(network->routes_by_section, route->section, route); |
21b39268 LP |
112 | if (r < 0) |
113 | return r; | |
6ae115c1 TG |
114 | } |
115 | ||
1cc6c93a | 116 | *ret = TAKE_PTR(route); |
f579559b TG |
117 | |
118 | return 0; | |
119 | } | |
120 | ||
121 | void route_free(Route *route) { | |
122 | if (!route) | |
123 | return; | |
124 | ||
f048a16b | 125 | if (route->network) { |
3d3d4255 | 126 | LIST_REMOVE(routes, route->network->static_routes, route); |
f579559b | 127 | |
8c34b963 LP |
128 | assert(route->network->n_static_routes > 0); |
129 | route->network->n_static_routes--; | |
130 | ||
fd45e522 | 131 | if (route->section) |
f4859fc7 | 132 | hashmap_remove(route->network->routes_by_section, route->section); |
f048a16b | 133 | } |
6ae115c1 | 134 | |
fd45e522 ZJS |
135 | network_config_section_free(route->section); |
136 | ||
1c8e710c TG |
137 | if (route->link) { |
138 | set_remove(route->link->routes, route); | |
139 | set_remove(route->link->routes_foreign, route); | |
140 | } | |
141 | ||
f833694d TG |
142 | sd_event_source_unref(route->expire); |
143 | ||
f579559b TG |
144 | free(route); |
145 | } | |
146 | ||
7a08d314 | 147 | static void route_hash_func(const Route *route, struct siphash *state) { |
bb7ae737 TG |
148 | assert(route); |
149 | ||
150 | siphash24_compress(&route->family, sizeof(route->family), state); | |
151 | ||
152 | switch (route->family) { | |
153 | case AF_INET: | |
154 | case AF_INET6: | |
155 | /* Equality of routes are given by the 4-touple | |
156 | (dst_prefix,dst_prefixlen,tos,priority,table) */ | |
2ce40956 | 157 | siphash24_compress(&route->dst, FAMILY_ADDRESS_SIZE(route->family), state); |
bb7ae737 TG |
158 | siphash24_compress(&route->dst_prefixlen, sizeof(route->dst_prefixlen), state); |
159 | siphash24_compress(&route->tos, sizeof(route->tos), state); | |
160 | siphash24_compress(&route->priority, sizeof(route->priority), state); | |
161 | siphash24_compress(&route->table, sizeof(route->table), state); | |
162 | ||
163 | break; | |
164 | default: | |
165 | /* treat any other address family as AF_UNSPEC */ | |
166 | break; | |
167 | } | |
168 | } | |
169 | ||
7a08d314 | 170 | static int route_compare_func(const Route *a, const Route *b) { |
a0edd02e | 171 | int r; |
bb7ae737 | 172 | |
a0edd02e FB |
173 | r = CMP(a->family, b->family); |
174 | if (r != 0) | |
175 | return r; | |
bb7ae737 TG |
176 | |
177 | switch (a->family) { | |
178 | case AF_INET: | |
179 | case AF_INET6: | |
a0edd02e FB |
180 | r = CMP(a->dst_prefixlen, b->dst_prefixlen); |
181 | if (r != 0) | |
182 | return r; | |
183 | ||
184 | r = CMP(a->tos, b->tos); | |
185 | if (r != 0) | |
186 | return r; | |
187 | ||
188 | r = CMP(a->priority, b->priority); | |
189 | if (r != 0) | |
190 | return r; | |
191 | ||
192 | r = CMP(a->table, b->table); | |
193 | if (r != 0) | |
194 | return r; | |
bb7ae737 | 195 | |
2ce40956 | 196 | return memcmp(&a->dst, &b->dst, FAMILY_ADDRESS_SIZE(a->family)); |
bb7ae737 TG |
197 | default: |
198 | /* treat any other address family as AF_UNSPEC */ | |
199 | return 0; | |
200 | } | |
201 | } | |
202 | ||
7a08d314 | 203 | DEFINE_PRIVATE_HASH_OPS(route_hash_ops, Route, route_hash_func, route_compare_func); |
bb7ae737 | 204 | |
7ecf0c3e TJ |
205 | bool route_equal(Route *r1, Route *r2) { |
206 | if (r1 == r2) | |
207 | return true; | |
208 | ||
209 | if (!r1 || !r2) | |
210 | return false; | |
211 | ||
212 | return route_compare_func(r1, r2) == 0; | |
213 | } | |
214 | ||
1c8e710c TG |
215 | int route_get(Link *link, |
216 | int family, | |
1b566071 | 217 | const union in_addr_union *dst, |
1c8e710c TG |
218 | unsigned char dst_prefixlen, |
219 | unsigned char tos, | |
220 | uint32_t priority, | |
14d20d2b | 221 | uint32_t table, |
1c8e710c | 222 | Route **ret) { |
1b566071 LP |
223 | |
224 | Route route, *existing; | |
225 | ||
226 | assert(link); | |
227 | assert(dst); | |
228 | ||
229 | route = (Route) { | |
1c8e710c | 230 | .family = family, |
1b566071 | 231 | .dst = *dst, |
1c8e710c TG |
232 | .dst_prefixlen = dst_prefixlen, |
233 | .tos = tos, | |
234 | .priority = priority, | |
235 | .table = table, | |
1b566071 | 236 | }; |
1c8e710c TG |
237 | |
238 | existing = set_get(link->routes, &route); | |
239 | if (existing) { | |
1b566071 LP |
240 | if (ret) |
241 | *ret = existing; | |
1c8e710c | 242 | return 1; |
1c8e710c TG |
243 | } |
244 | ||
1b566071 LP |
245 | existing = set_get(link->routes_foreign, &route); |
246 | if (existing) { | |
247 | if (ret) | |
248 | *ret = existing; | |
249 | return 0; | |
250 | } | |
1c8e710c | 251 | |
1b566071 | 252 | return -ENOENT; |
1c8e710c TG |
253 | } |
254 | ||
889b550f LP |
255 | static int route_add_internal( |
256 | Link *link, | |
257 | Set **routes, | |
258 | int family, | |
259 | const union in_addr_union *dst, | |
260 | unsigned char dst_prefixlen, | |
261 | unsigned char tos, | |
262 | uint32_t priority, | |
14d20d2b | 263 | uint32_t table, |
889b550f LP |
264 | Route **ret) { |
265 | ||
8e766630 | 266 | _cleanup_(route_freep) Route *route = NULL; |
1c8e710c TG |
267 | int r; |
268 | ||
269 | assert(link); | |
270 | assert(routes); | |
271 | assert(dst); | |
272 | ||
273 | r = route_new(&route); | |
274 | if (r < 0) | |
275 | return r; | |
276 | ||
277 | route->family = family; | |
278 | route->dst = *dst; | |
279 | route->dst_prefixlen = dst_prefixlen; | |
280 | route->tos = tos; | |
281 | route->priority = priority; | |
282 | route->table = table; | |
283 | ||
284 | r = set_ensure_allocated(routes, &route_hash_ops); | |
285 | if (r < 0) | |
286 | return r; | |
287 | ||
288 | r = set_put(*routes, route); | |
289 | if (r < 0) | |
290 | return r; | |
291 | ||
292 | route->link = link; | |
293 | ||
294 | if (ret) | |
295 | *ret = route; | |
296 | ||
297 | route = NULL; | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
889b550f LP |
302 | int route_add_foreign( |
303 | Link *link, | |
304 | int family, | |
305 | const union in_addr_union *dst, | |
306 | unsigned char dst_prefixlen, | |
307 | unsigned char tos, | |
308 | uint32_t priority, | |
14d20d2b | 309 | uint32_t table, |
889b550f LP |
310 | Route **ret) { |
311 | ||
1c8e710c TG |
312 | return route_add_internal(link, &link->routes_foreign, family, dst, dst_prefixlen, tos, priority, table, ret); |
313 | } | |
314 | ||
27efb52b | 315 | int route_add(Link *link, |
1c8e710c | 316 | int family, |
889b550f | 317 | const union in_addr_union *dst, |
1c8e710c TG |
318 | unsigned char dst_prefixlen, |
319 | unsigned char tos, | |
320 | uint32_t priority, | |
14d20d2b | 321 | uint32_t table, |
889b550f LP |
322 | Route **ret) { |
323 | ||
1c8e710c TG |
324 | Route *route; |
325 | int r; | |
326 | ||
327 | r = route_get(link, family, dst, dst_prefixlen, tos, priority, table, &route); | |
328 | if (r == -ENOENT) { | |
329 | /* Route does not exist, create a new one */ | |
330 | r = route_add_internal(link, &link->routes, family, dst, dst_prefixlen, tos, priority, table, &route); | |
331 | if (r < 0) | |
332 | return r; | |
333 | } else if (r == 0) { | |
334 | /* Take over a foreign route */ | |
335 | r = set_ensure_allocated(&link->routes, &route_hash_ops); | |
336 | if (r < 0) | |
337 | return r; | |
338 | ||
339 | r = set_put(link->routes, route); | |
340 | if (r < 0) | |
341 | return r; | |
342 | ||
343 | set_remove(link->routes_foreign, route); | |
344 | } else if (r == 1) { | |
345 | /* Route exists, do nothing */ | |
346 | ; | |
347 | } else | |
348 | return r; | |
349 | ||
856e309d MC |
350 | if (ret) |
351 | *ret = route; | |
1c8e710c TG |
352 | |
353 | return 0; | |
354 | } | |
355 | ||
bbd15900 | 356 | void route_update(Route *route, |
27efb52b YW |
357 | const union in_addr_union *src, |
358 | unsigned char src_prefixlen, | |
359 | const union in_addr_union *gw, | |
360 | const union in_addr_union *prefsrc, | |
361 | unsigned char scope, | |
362 | unsigned char protocol, | |
363 | unsigned char type) { | |
889b550f | 364 | |
1c8e710c | 365 | assert(route); |
26db55f3 | 366 | assert(src || src_prefixlen == 0); |
1c8e710c | 367 | |
3c7911e8 | 368 | route->src = src ? *src : IN_ADDR_NULL; |
1c8e710c | 369 | route->src_prefixlen = src_prefixlen; |
3c7911e8 YW |
370 | route->gw = gw ? *gw : IN_ADDR_NULL; |
371 | route->prefsrc = prefsrc ? *prefsrc : IN_ADDR_NULL; | |
1c8e710c TG |
372 | route->scope = scope; |
373 | route->protocol = protocol; | |
983226f3 | 374 | route->type = type; |
1c8e710c TG |
375 | } |
376 | ||
302a796f | 377 | static int route_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { |
4645ad47 YW |
378 | int r; |
379 | ||
380 | assert(m); | |
381 | assert(link); | |
382 | assert(link->ifname); | |
383 | ||
384 | if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
385 | return 1; | |
386 | ||
387 | r = sd_netlink_message_get_errno(m); | |
388 | if (r < 0 && r != -ESRCH) | |
389 | log_link_warning_errno(link, r, "Could not drop route: %m"); | |
390 | ||
391 | return 1; | |
392 | } | |
393 | ||
91b5f997 | 394 | int route_remove(Route *route, Link *link, |
302a796f | 395 | link_netlink_message_handler_t callback) { |
27efb52b | 396 | |
4afd3348 | 397 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
5c1d3fc9 UTL |
398 | int r; |
399 | ||
400 | assert(link); | |
401 | assert(link->manager); | |
402 | assert(link->manager->rtnl); | |
403 | assert(link->ifindex > 0); | |
4c701096 | 404 | assert(IN_SET(route->family, AF_INET, AF_INET6)); |
5c1d3fc9 UTL |
405 | |
406 | r = sd_rtnl_message_new_route(link->manager->rtnl, &req, | |
28cc555d DW |
407 | RTM_DELROUTE, route->family, |
408 | route->protocol); | |
f647962d | 409 | if (r < 0) |
7750b796 | 410 | return log_link_error_errno(link, r, "Could not create RTM_DELROUTE message: %m"); |
5c1d3fc9 | 411 | |
d40b01e4 | 412 | if (in_addr_is_null(route->family, &route->gw) == 0) { |
43409486 | 413 | r = netlink_message_append_in_addr_union(req, RTA_GATEWAY, route->family, &route->gw); |
f647962d | 414 | if (r < 0) |
7750b796 | 415 | return log_link_error_errno(link, r, "Could not append RTA_GATEWAY attribute: %m"); |
5c1d3fc9 UTL |
416 | } |
417 | ||
418 | if (route->dst_prefixlen) { | |
43409486 | 419 | r = netlink_message_append_in_addr_union(req, RTA_DST, route->family, &route->dst); |
f647962d | 420 | if (r < 0) |
7750b796 | 421 | return log_link_error_errno(link, r, "Could not append RTA_DST attribute: %m"); |
5c1d3fc9 UTL |
422 | |
423 | r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); | |
f647962d | 424 | if (r < 0) |
7750b796 | 425 | return log_link_error_errno(link, r, "Could not set destination prefix length: %m"); |
5c1d3fc9 UTL |
426 | } |
427 | ||
9e7e4408 | 428 | if (route->src_prefixlen) { |
43409486 | 429 | r = netlink_message_append_in_addr_union(req, RTA_SRC, route->family, &route->src); |
9e7e4408 | 430 | if (r < 0) |
7750b796 | 431 | return log_link_error_errno(link, r, "Could not append RTA_SRC attribute: %m"); |
9e7e4408 TG |
432 | |
433 | r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); | |
434 | if (r < 0) | |
7750b796 | 435 | return log_link_error_errno(link, r, "Could not set source prefix length: %m"); |
9e7e4408 TG |
436 | } |
437 | ||
d40b01e4 | 438 | if (in_addr_is_null(route->family, &route->prefsrc) == 0) { |
43409486 | 439 | r = netlink_message_append_in_addr_union(req, RTA_PREFSRC, route->family, &route->prefsrc); |
f647962d | 440 | if (r < 0) |
7750b796 | 441 | return log_link_error_errno(link, r, "Could not append RTA_PREFSRC attribute: %m"); |
46b0c76e ERB |
442 | } |
443 | ||
5c1d3fc9 | 444 | r = sd_rtnl_message_route_set_scope(req, route->scope); |
f647962d | 445 | if (r < 0) |
7750b796 | 446 | return log_link_error_errno(link, r, "Could not set scope: %m"); |
5c1d3fc9 | 447 | |
86655331 | 448 | r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); |
f647962d | 449 | if (r < 0) |
7750b796 | 450 | return log_link_error_errno(link, r, "Could not append RTA_PRIORITY attribute: %m"); |
5c1d3fc9 | 451 | |
2d53f310 | 452 | if (!IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE, RTN_THROW)) { |
983226f3 SS |
453 | r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); |
454 | if (r < 0) | |
7750b796 | 455 | return log_link_error_errno(link, r, "Could not append RTA_OIF attribute: %m"); |
983226f3 | 456 | } |
5c1d3fc9 | 457 | |
302a796f YW |
458 | r = netlink_call_async(link->manager->rtnl, NULL, req, |
459 | callback ?: route_remove_handler, | |
460 | link_netlink_destroy_callback, link); | |
f647962d | 461 | if (r < 0) |
7750b796 | 462 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
5c1d3fc9 | 463 | |
563c69c6 TG |
464 | link_ref(link); |
465 | ||
5c1d3fc9 UTL |
466 | return 0; |
467 | } | |
468 | ||
f833694d TG |
469 | int route_expire_handler(sd_event_source *s, uint64_t usec, void *userdata) { |
470 | Route *route = userdata; | |
471 | int r; | |
472 | ||
473 | assert(route); | |
474 | ||
4645ad47 | 475 | r = route_remove(route, route->link, NULL); |
f833694d TG |
476 | if (r < 0) |
477 | log_warning_errno(r, "Could not remove route: %m"); | |
3bdccf69 | 478 | else |
fe7ca21a | 479 | route_free(route); |
f833694d TG |
480 | |
481 | return 1; | |
482 | } | |
483 | ||
1b566071 LP |
484 | int route_configure( |
485 | Route *route, | |
486 | Link *link, | |
302a796f | 487 | link_netlink_message_handler_t callback) { |
1b566071 | 488 | |
4afd3348 LP |
489 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
490 | _cleanup_(sd_event_source_unrefp) sd_event_source *expire = NULL; | |
f833694d | 491 | usec_t lifetime; |
f579559b TG |
492 | int r; |
493 | ||
f579559b | 494 | assert(link); |
f882c247 TG |
495 | assert(link->manager); |
496 | assert(link->manager->rtnl); | |
f579559b | 497 | assert(link->ifindex > 0); |
4c701096 | 498 | assert(IN_SET(route->family, AF_INET, AF_INET6)); |
bd1175bc | 499 | assert(callback); |
f579559b | 500 | |
1b566071 | 501 | if (route_get(link, route->family, &route->dst, route->dst_prefixlen, route->tos, route->priority, route->table, NULL) <= 0 && |
47d2d30d | 502 | set_size(link->routes) >= routes_max()) |
7750b796 YW |
503 | return log_link_error_errno(link, SYNTHETIC_ERRNO(E2BIG), |
504 | "Too many routes are configured, refusing: %m"); | |
1b566071 | 505 | |
156ed65e YW |
506 | if (DEBUG_LOGGING) { |
507 | _cleanup_free_ char *dst = NULL, *dst_prefixlen = NULL, *src = NULL, *gw = NULL, *prefsrc = NULL; | |
508 | ||
509 | if (!in_addr_is_null(route->family, &route->dst)) { | |
510 | (void) in_addr_to_string(route->family, &route->dst, &dst); | |
511 | (void) asprintf(&dst_prefixlen, "/%u", route->dst_prefixlen); | |
512 | } | |
513 | if (!in_addr_is_null(route->family, &route->src)) | |
514 | (void) in_addr_to_string(route->family, &route->src, &src); | |
515 | if (!in_addr_is_null(route->family, &route->gw)) | |
516 | (void) in_addr_to_string(route->family, &route->gw, &gw); | |
517 | if (!in_addr_is_null(route->family, &route->prefsrc)) | |
518 | (void) in_addr_to_string(route->family, &route->prefsrc, &prefsrc); | |
519 | ||
520 | log_link_debug(link, "Configuring route: dst: %s%s, src: %s, gw: %s, prefsrc: %s", | |
521 | strna(dst), strempty(dst_prefixlen), strna(src), strna(gw), strna(prefsrc)); | |
522 | } | |
523 | ||
151b9b96 | 524 | r = sd_rtnl_message_new_route(link->manager->rtnl, &req, |
28cc555d DW |
525 | RTM_NEWROUTE, route->family, |
526 | route->protocol); | |
f647962d | 527 | if (r < 0) |
7750b796 | 528 | return log_link_error_errno(link, r, "Could not create RTM_NEWROUTE message: %m"); |
f579559b | 529 | |
d40b01e4 | 530 | if (in_addr_is_null(route->family, &route->gw) == 0) { |
43409486 | 531 | r = netlink_message_append_in_addr_union(req, RTA_GATEWAY, route->family, &route->gw); |
f647962d | 532 | if (r < 0) |
7750b796 | 533 | return log_link_error_errno(link, r, "Could not append RTA_GATEWAY attribute: %m"); |
c953b24c SS |
534 | |
535 | r = sd_rtnl_message_route_set_family(req, route->family); | |
536 | if (r < 0) | |
7750b796 | 537 | return log_link_error_errno(link, r, "Could not set route family: %m"); |
f579559b TG |
538 | } |
539 | ||
0a0dc69b | 540 | if (route->dst_prefixlen) { |
43409486 | 541 | r = netlink_message_append_in_addr_union(req, RTA_DST, route->family, &route->dst); |
f647962d | 542 | if (r < 0) |
7750b796 | 543 | return log_link_error_errno(link, r, "Could not append RTA_DST attribute: %m"); |
6ae115c1 | 544 | |
ae4c67a7 | 545 | r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); |
f647962d | 546 | if (r < 0) |
7750b796 | 547 | return log_link_error_errno(link, r, "Could not set destination prefix length: %m"); |
1f01fb4f TG |
548 | } |
549 | ||
9e7e4408 | 550 | if (route->src_prefixlen) { |
43409486 | 551 | r = netlink_message_append_in_addr_union(req, RTA_SRC, route->family, &route->src); |
9e7e4408 | 552 | if (r < 0) |
7750b796 | 553 | return log_link_error_errno(link, r, "Could not append RTA_SRC attribute: %m"); |
9e7e4408 TG |
554 | |
555 | r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); | |
556 | if (r < 0) | |
7750b796 | 557 | return log_link_error_errno(link, r, "Could not set source prefix length: %m"); |
9e7e4408 TG |
558 | } |
559 | ||
d40b01e4 | 560 | if (in_addr_is_null(route->family, &route->prefsrc) == 0) { |
43409486 | 561 | r = netlink_message_append_in_addr_union(req, RTA_PREFSRC, route->family, &route->prefsrc); |
f647962d | 562 | if (r < 0) |
7750b796 | 563 | return log_link_error_errno(link, r, "Could not append RTA_PREFSRC attribute: %m"); |
46b0c76e ERB |
564 | } |
565 | ||
5c1d3fc9 | 566 | r = sd_rtnl_message_route_set_scope(req, route->scope); |
f647962d | 567 | if (r < 0) |
7750b796 | 568 | return log_link_error_errno(link, r, "Could not set scope: %m"); |
5c1d3fc9 | 569 | |
54901fd2 YW |
570 | if (route->gateway_onlink >= 0) |
571 | SET_FLAG(route->flags, RTNH_F_ONLINK, route->gateway_onlink); | |
572 | ||
3b015d40 TG |
573 | r = sd_rtnl_message_route_set_flags(req, route->flags); |
574 | if (r < 0) | |
7750b796 | 575 | return log_link_error_errno(link, r, "Could not set flags: %m"); |
c953b24c | 576 | |
a0d95bbc | 577 | if (route->table != RT_TABLE_MAIN) { |
c953b24c SS |
578 | if (route->table < 256) { |
579 | r = sd_rtnl_message_route_set_table(req, route->table); | |
580 | if (r < 0) | |
7750b796 | 581 | return log_link_error_errno(link, r, "Could not set route table: %m"); |
c953b24c | 582 | } else { |
c953b24c SS |
583 | r = sd_rtnl_message_route_set_table(req, RT_TABLE_UNSPEC); |
584 | if (r < 0) | |
7750b796 | 585 | return log_link_error_errno(link, r, "Could not set route table: %m"); |
c953b24c | 586 | |
06976f5b | 587 | /* Table attribute to allow more than 256. */ |
c953b24c SS |
588 | r = sd_netlink_message_append_data(req, RTA_TABLE, &route->table, sizeof(route->table)); |
589 | if (r < 0) | |
7750b796 | 590 | return log_link_error_errno(link, r, "Could not append RTA_TABLE attribute: %m"); |
c953b24c SS |
591 | } |
592 | } | |
3b015d40 | 593 | |
86655331 | 594 | r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); |
f647962d | 595 | if (r < 0) |
7750b796 | 596 | return log_link_error_errno(link, r, "Could not append RTA_PRIORITY attribute: %m"); |
5c1d3fc9 | 597 | |
3b015d40 TG |
598 | r = sd_netlink_message_append_u8(req, RTA_PREF, route->pref); |
599 | if (r < 0) | |
7750b796 | 600 | return log_link_error_errno(link, r, "Could not append RTA_PREF attribute: %m"); |
3b015d40 | 601 | |
f02ba163 DD |
602 | if (route->lifetime != USEC_INFINITY && kernel_route_expiration_supported()) { |
603 | r = sd_netlink_message_append_u32(req, RTA_EXPIRES, | |
604 | DIV_ROUND_UP(usec_sub_unsigned(route->lifetime, now(clock_boottime_or_monotonic())), USEC_PER_SEC)); | |
605 | if (r < 0) | |
7750b796 | 606 | return log_link_error_errno(link, r, "Could not append RTA_EXPIRES attribute: %m"); |
f02ba163 DD |
607 | } |
608 | ||
983226f3 | 609 | r = sd_rtnl_message_route_set_type(req, route->type); |
f647962d | 610 | if (r < 0) |
7750b796 | 611 | return log_link_error_errno(link, r, "Could not set route type: %m"); |
983226f3 | 612 | |
2d53f310 | 613 | if (!IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE, RTN_THROW)) { |
983226f3 SS |
614 | r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); |
615 | if (r < 0) | |
7750b796 | 616 | return log_link_error_errno(link, r, "Could not append RTA_OIF attribute: %m"); |
983226f3 | 617 | } |
f579559b | 618 | |
d6fceaf1 SS |
619 | r = sd_netlink_message_open_container(req, RTA_METRICS); |
620 | if (r < 0) | |
7750b796 | 621 | return log_link_error_errno(link, r, "Could not append RTA_METRICS attribute: %m"); |
d6fceaf1 SS |
622 | |
623 | if (route->mtu > 0) { | |
624 | r = sd_netlink_message_append_u32(req, RTAX_MTU, route->mtu); | |
625 | if (r < 0) | |
7750b796 | 626 | return log_link_error_errno(link, r, "Could not append RTAX_MTU attribute: %m"); |
d6fceaf1 SS |
627 | } |
628 | ||
6b21ad33 | 629 | if (route->initcwnd > 0) { |
323d9329 SS |
630 | r = sd_netlink_message_append_u32(req, RTAX_INITCWND, route->initcwnd); |
631 | if (r < 0) | |
7750b796 | 632 | return log_link_error_errno(link, r, "Could not append RTAX_INITCWND attribute: %m"); |
323d9329 SS |
633 | } |
634 | ||
6b21ad33 | 635 | if (route->initrwnd > 0) { |
323d9329 SS |
636 | r = sd_netlink_message_append_u32(req, RTAX_INITRWND, route->initrwnd); |
637 | if (r < 0) | |
7750b796 | 638 | return log_link_error_errno(link, r, "Could not append RTAX_INITRWND attribute: %m"); |
323d9329 SS |
639 | } |
640 | ||
09f5dfad SS |
641 | if (route->quickack != -1) { |
642 | r = sd_netlink_message_append_u32(req, RTAX_QUICKACK, route->quickack); | |
643 | if (r < 0) | |
7750b796 | 644 | return log_link_error_errno(link, r, "Could not append RTAX_QUICKACK attribute: %m"); |
09f5dfad SS |
645 | } |
646 | ||
d6fceaf1 SS |
647 | r = sd_netlink_message_close_container(req); |
648 | if (r < 0) | |
7750b796 | 649 | return log_link_error_errno(link, r, "Could not append RTA_METRICS attribute: %m"); |
d6fceaf1 | 650 | |
302a796f YW |
651 | r = netlink_call_async(link->manager->rtnl, NULL, req, callback, |
652 | link_netlink_destroy_callback, link); | |
f647962d | 653 | if (r < 0) |
7750b796 | 654 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
f579559b | 655 | |
563c69c6 TG |
656 | link_ref(link); |
657 | ||
f833694d TG |
658 | lifetime = route->lifetime; |
659 | ||
660 | r = route_add(link, route->family, &route->dst, route->dst_prefixlen, route->tos, route->priority, route->table, &route); | |
1c8e710c | 661 | if (r < 0) |
7750b796 | 662 | return log_link_error_errno(link, r, "Could not add route: %m"); |
1c8e710c | 663 | |
f833694d TG |
664 | /* TODO: drop expiration handling once it can be pushed into the kernel */ |
665 | route->lifetime = lifetime; | |
666 | ||
f02ba163 | 667 | if (route->lifetime != USEC_INFINITY && !kernel_route_expiration_supported()) { |
f833694d TG |
668 | r = sd_event_add_time(link->manager->event, &expire, clock_boottime_or_monotonic(), |
669 | route->lifetime, 0, route_expire_handler, route); | |
670 | if (r < 0) | |
7750b796 | 671 | return log_link_error_errno(link, r, "Could not arm expiration timer: %m"); |
f833694d TG |
672 | } |
673 | ||
674 | sd_event_source_unref(route->expire); | |
1cc6c93a | 675 | route->expire = TAKE_PTR(expire); |
f833694d | 676 | |
f579559b TG |
677 | return 0; |
678 | } | |
679 | ||
fa7cd711 | 680 | int network_add_ipv4ll_route(Network *network) { |
fcbf4cb7 | 681 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
fa7cd711 YW |
682 | int r; |
683 | ||
684 | assert(network); | |
685 | ||
686 | if (!network->ipv4ll_route) | |
687 | return 0; | |
688 | ||
689 | /* IPv4LLRoute= is in [Network] section. */ | |
690 | r = route_new_static(network, NULL, 0, &n); | |
691 | if (r < 0) | |
692 | return r; | |
693 | ||
694 | r = in_addr_from_string(AF_INET, "169.254.0.0", &n->dst); | |
695 | if (r < 0) | |
696 | return r; | |
697 | ||
698 | n->family = AF_INET; | |
699 | n->dst_prefixlen = 16; | |
700 | n->scope = RT_SCOPE_LINK; | |
701 | n->priority = IPV4LL_ROUTE_METRIC; | |
702 | n->protocol = RTPROT_STATIC; | |
703 | ||
704 | TAKE_PTR(n); | |
705 | return 0; | |
706 | } | |
707 | ||
27efb52b YW |
708 | int config_parse_gateway( |
709 | const char *unit, | |
f579559b TG |
710 | const char *filename, |
711 | unsigned line, | |
712 | const char *section, | |
71a61510 | 713 | unsigned section_line, |
f579559b TG |
714 | const char *lvalue, |
715 | int ltype, | |
716 | const char *rvalue, | |
717 | void *data, | |
718 | void *userdata) { | |
44e7b949 | 719 | |
6ae115c1 | 720 | Network *network = userdata; |
fcbf4cb7 | 721 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7934dede | 722 | int r; |
f579559b TG |
723 | |
724 | assert(filename); | |
6ae115c1 | 725 | assert(section); |
f579559b TG |
726 | assert(lvalue); |
727 | assert(rvalue); | |
728 | assert(data); | |
729 | ||
92fe133a TG |
730 | if (streq(section, "Network")) { |
731 | /* we are not in an Route section, so treat | |
732 | * this as the special '0' section */ | |
f4859fc7 SS |
733 | r = route_new_static(network, NULL, 0, &n); |
734 | } else | |
735 | r = route_new_static(network, filename, section_line, &n); | |
f579559b TG |
736 | if (r < 0) |
737 | return r; | |
738 | ||
01d4e732 YW |
739 | if (n->family == AF_UNSPEC) |
740 | r = in_addr_from_string_auto(rvalue, &n->family, &n->gw); | |
741 | else | |
742 | r = in_addr_from_string(n->family, rvalue, &n->gw); | |
f579559b | 743 | if (r < 0) { |
01d4e732 YW |
744 | log_syntax(unit, LOG_ERR, filename, line, r, |
745 | "Invalid %s='%s', ignoring assignment: %m", lvalue, rvalue); | |
f579559b TG |
746 | return 0; |
747 | } | |
748 | ||
aff44301 | 749 | TAKE_PTR(n); |
f579559b TG |
750 | return 0; |
751 | } | |
6ae115c1 | 752 | |
27efb52b YW |
753 | int config_parse_preferred_src( |
754 | const char *unit, | |
0d07e595 JK |
755 | const char *filename, |
756 | unsigned line, | |
757 | const char *section, | |
758 | unsigned section_line, | |
759 | const char *lvalue, | |
760 | int ltype, | |
761 | const char *rvalue, | |
762 | void *data, | |
763 | void *userdata) { | |
764 | ||
765 | Network *network = userdata; | |
fcbf4cb7 | 766 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7934dede | 767 | int r; |
0d07e595 JK |
768 | |
769 | assert(filename); | |
770 | assert(section); | |
771 | assert(lvalue); | |
772 | assert(rvalue); | |
773 | assert(data); | |
774 | ||
f4859fc7 | 775 | r = route_new_static(network, filename, section_line, &n); |
0d07e595 JK |
776 | if (r < 0) |
777 | return r; | |
778 | ||
01d4e732 YW |
779 | if (n->family == AF_UNSPEC) |
780 | r = in_addr_from_string_auto(rvalue, &n->family, &n->prefsrc); | |
781 | else | |
782 | r = in_addr_from_string(n->family, rvalue, &n->prefsrc); | |
0d07e595 JK |
783 | if (r < 0) { |
784 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
01d4e732 | 785 | "Invalid %s='%s', ignoring assignment: %m", lvalue, rvalue); |
0d07e595 JK |
786 | return 0; |
787 | } | |
788 | ||
aff44301 | 789 | TAKE_PTR(n); |
0d07e595 JK |
790 | return 0; |
791 | } | |
792 | ||
27efb52b YW |
793 | int config_parse_destination( |
794 | const char *unit, | |
6ae115c1 TG |
795 | const char *filename, |
796 | unsigned line, | |
797 | const char *section, | |
798 | unsigned section_line, | |
799 | const char *lvalue, | |
800 | int ltype, | |
801 | const char *rvalue, | |
802 | void *data, | |
803 | void *userdata) { | |
44e7b949 | 804 | |
6ae115c1 | 805 | Network *network = userdata; |
fcbf4cb7 | 806 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7934dede YW |
807 | union in_addr_union *buffer; |
808 | unsigned char *prefixlen; | |
ca3bad65 | 809 | int r; |
6ae115c1 TG |
810 | |
811 | assert(filename); | |
812 | assert(section); | |
813 | assert(lvalue); | |
814 | assert(rvalue); | |
815 | assert(data); | |
816 | ||
f4859fc7 | 817 | r = route_new_static(network, filename, section_line, &n); |
6ae115c1 TG |
818 | if (r < 0) |
819 | return r; | |
820 | ||
9e7e4408 | 821 | if (streq(lvalue, "Destination")) { |
7934dede YW |
822 | buffer = &n->dst; |
823 | prefixlen = &n->dst_prefixlen; | |
9e7e4408 | 824 | } else if (streq(lvalue, "Source")) { |
7934dede YW |
825 | buffer = &n->src; |
826 | prefixlen = &n->src_prefixlen; | |
9e7e4408 TG |
827 | } else |
828 | assert_not_reached(lvalue); | |
829 | ||
01d4e732 YW |
830 | if (n->family == AF_UNSPEC) |
831 | r = in_addr_prefix_from_string_auto(rvalue, &n->family, buffer, prefixlen); | |
832 | else | |
833 | r = in_addr_prefix_from_string(rvalue, n->family, buffer, prefixlen); | |
7934dede | 834 | if (r < 0) { |
01d4e732 YW |
835 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
836 | "Invalid %s='%s', ignoring assignment: %m", lvalue, rvalue); | |
7934dede YW |
837 | return 0; |
838 | } | |
839 | ||
aff44301 | 840 | TAKE_PTR(n); |
6ae115c1 TG |
841 | return 0; |
842 | } | |
5d8e593d | 843 | |
27efb52b YW |
844 | int config_parse_route_priority( |
845 | const char *unit, | |
846 | const char *filename, | |
847 | unsigned line, | |
848 | const char *section, | |
849 | unsigned section_line, | |
850 | const char *lvalue, | |
851 | int ltype, | |
852 | const char *rvalue, | |
853 | void *data, | |
854 | void *userdata) { | |
855 | ||
5d8e593d | 856 | Network *network = userdata; |
fcbf4cb7 | 857 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
5d8e593d SS |
858 | int r; |
859 | ||
860 | assert(filename); | |
861 | assert(section); | |
862 | assert(lvalue); | |
863 | assert(rvalue); | |
864 | assert(data); | |
865 | ||
f4859fc7 | 866 | r = route_new_static(network, filename, section_line, &n); |
5d8e593d SS |
867 | if (r < 0) |
868 | return r; | |
869 | ||
aff44301 | 870 | r = safe_atou32(rvalue, &n->priority); |
1c4b1179 SS |
871 | if (r < 0) { |
872 | log_syntax(unit, LOG_ERR, filename, line, r, | |
873 | "Could not parse route priority \"%s\", ignoring assignment: %m", rvalue); | |
874 | return 0; | |
875 | } | |
5d8e593d | 876 | |
aff44301 | 877 | TAKE_PTR(n); |
5d8e593d SS |
878 | return 0; |
879 | } | |
769b56a3 | 880 | |
27efb52b YW |
881 | int config_parse_route_scope( |
882 | const char *unit, | |
883 | const char *filename, | |
884 | unsigned line, | |
885 | const char *section, | |
886 | unsigned section_line, | |
887 | const char *lvalue, | |
888 | int ltype, | |
889 | const char *rvalue, | |
890 | void *data, | |
891 | void *userdata) { | |
892 | ||
769b56a3 | 893 | Network *network = userdata; |
fcbf4cb7 | 894 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
769b56a3 TG |
895 | int r; |
896 | ||
897 | assert(filename); | |
898 | assert(section); | |
899 | assert(lvalue); | |
900 | assert(rvalue); | |
901 | assert(data); | |
902 | ||
f4859fc7 | 903 | r = route_new_static(network, filename, section_line, &n); |
769b56a3 TG |
904 | if (r < 0) |
905 | return r; | |
906 | ||
907 | if (streq(rvalue, "host")) | |
908 | n->scope = RT_SCOPE_HOST; | |
909 | else if (streq(rvalue, "link")) | |
910 | n->scope = RT_SCOPE_LINK; | |
911 | else if (streq(rvalue, "global")) | |
912 | n->scope = RT_SCOPE_UNIVERSE; | |
913 | else { | |
12ca818f | 914 | log_syntax(unit, LOG_ERR, filename, line, 0, "Unknown route scope: %s", rvalue); |
769b56a3 TG |
915 | return 0; |
916 | } | |
917 | ||
aff44301 | 918 | TAKE_PTR(n); |
769b56a3 TG |
919 | return 0; |
920 | } | |
c953b24c | 921 | |
27efb52b YW |
922 | int config_parse_route_table( |
923 | const char *unit, | |
924 | const char *filename, | |
925 | unsigned line, | |
926 | const char *section, | |
927 | unsigned section_line, | |
928 | const char *lvalue, | |
929 | int ltype, | |
930 | const char *rvalue, | |
931 | void *data, | |
932 | void *userdata) { | |
933 | ||
fcbf4cb7 | 934 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
c953b24c | 935 | Network *network = userdata; |
c953b24c SS |
936 | int r; |
937 | ||
938 | assert(filename); | |
939 | assert(section); | |
940 | assert(lvalue); | |
941 | assert(rvalue); | |
942 | assert(data); | |
943 | ||
f4859fc7 | 944 | r = route_new_static(network, filename, section_line, &n); |
c953b24c SS |
945 | if (r < 0) |
946 | return r; | |
947 | ||
aff44301 | 948 | r = safe_atou32(rvalue, &n->table); |
c953b24c SS |
949 | if (r < 0) { |
950 | log_syntax(unit, LOG_ERR, filename, line, r, | |
951 | "Could not parse route table number \"%s\", ignoring assignment: %m", rvalue); | |
952 | return 0; | |
953 | } | |
954 | ||
aff44301 | 955 | TAKE_PTR(n); |
c953b24c SS |
956 | return 0; |
957 | } | |
28959f7d | 958 | |
27efb52b YW |
959 | int config_parse_gateway_onlink( |
960 | const char *unit, | |
961 | const char *filename, | |
962 | unsigned line, | |
963 | const char *section, | |
964 | unsigned section_line, | |
965 | const char *lvalue, | |
966 | int ltype, | |
967 | const char *rvalue, | |
968 | void *data, | |
969 | void *userdata) { | |
970 | ||
28959f7d | 971 | Network *network = userdata; |
fcbf4cb7 | 972 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
28959f7d SS |
973 | int r; |
974 | ||
975 | assert(filename); | |
976 | assert(section); | |
977 | assert(lvalue); | |
978 | assert(rvalue); | |
979 | assert(data); | |
980 | ||
981 | r = route_new_static(network, filename, section_line, &n); | |
982 | if (r < 0) | |
983 | return r; | |
984 | ||
985 | r = parse_boolean(rvalue); | |
986 | if (r < 0) { | |
987 | log_syntax(unit, LOG_ERR, filename, line, r, | |
9cb8c559 | 988 | "Could not parse %s=\"%s\", ignoring assignment: %m", lvalue, rvalue); |
28959f7d SS |
989 | return 0; |
990 | } | |
991 | ||
54901fd2 YW |
992 | n->gateway_onlink = r; |
993 | ||
aff44301 | 994 | TAKE_PTR(n); |
b5bf6f64 SS |
995 | return 0; |
996 | } | |
997 | ||
27efb52b YW |
998 | int config_parse_ipv6_route_preference( |
999 | const char *unit, | |
1000 | const char *filename, | |
1001 | unsigned line, | |
1002 | const char *section, | |
1003 | unsigned section_line, | |
1004 | const char *lvalue, | |
1005 | int ltype, | |
1006 | const char *rvalue, | |
1007 | void *data, | |
1008 | void *userdata) { | |
1009 | ||
b5bf6f64 | 1010 | Network *network = userdata; |
fcbf4cb7 | 1011 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
b5bf6f64 SS |
1012 | int r; |
1013 | ||
4c7bd9cf SS |
1014 | r = route_new_static(network, filename, section_line, &n); |
1015 | if (r < 0) | |
1016 | return r; | |
1017 | ||
b5bf6f64 SS |
1018 | if (streq(rvalue, "low")) |
1019 | n->pref = ICMPV6_ROUTER_PREF_LOW; | |
1020 | else if (streq(rvalue, "medium")) | |
1021 | n->pref = ICMPV6_ROUTER_PREF_MEDIUM; | |
1022 | else if (streq(rvalue, "high")) | |
1023 | n->pref = ICMPV6_ROUTER_PREF_HIGH; | |
1024 | else { | |
1025 | log_syntax(unit, LOG_ERR, filename, line, 0, "Unknown route preference: %s", rvalue); | |
1026 | return 0; | |
1027 | } | |
28959f7d | 1028 | |
aff44301 | 1029 | TAKE_PTR(n); |
28959f7d SS |
1030 | return 0; |
1031 | } | |
c83ecc04 | 1032 | |
27efb52b YW |
1033 | int config_parse_route_protocol( |
1034 | const char *unit, | |
1035 | const char *filename, | |
1036 | unsigned line, | |
1037 | const char *section, | |
1038 | unsigned section_line, | |
1039 | const char *lvalue, | |
1040 | int ltype, | |
1041 | const char *rvalue, | |
1042 | void *data, | |
1043 | void *userdata) { | |
1044 | ||
c83ecc04 | 1045 | Network *network = userdata; |
fcbf4cb7 | 1046 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
c83ecc04 SS |
1047 | int r; |
1048 | ||
1049 | r = route_new_static(network, filename, section_line, &n); | |
1050 | if (r < 0) | |
1051 | return r; | |
1052 | ||
1053 | if (streq(rvalue, "kernel")) | |
1054 | n->protocol = RTPROT_KERNEL; | |
1055 | else if (streq(rvalue, "boot")) | |
1056 | n->protocol = RTPROT_BOOT; | |
1057 | else if (streq(rvalue, "static")) | |
1058 | n->protocol = RTPROT_STATIC; | |
1059 | else { | |
1060 | r = safe_atou8(rvalue , &n->protocol); | |
1061 | if (r < 0) { | |
f205a92a YW |
1062 | log_syntax(unit, LOG_ERR, filename, line, r, |
1063 | "Could not parse route protocol \"%s\", ignoring assignment: %m", rvalue); | |
c83ecc04 SS |
1064 | return 0; |
1065 | } | |
1066 | } | |
1067 | ||
aff44301 | 1068 | TAKE_PTR(n); |
c83ecc04 SS |
1069 | return 0; |
1070 | } | |
983226f3 | 1071 | |
27efb52b YW |
1072 | int config_parse_route_type( |
1073 | const char *unit, | |
1074 | const char *filename, | |
1075 | unsigned line, | |
1076 | const char *section, | |
1077 | unsigned section_line, | |
1078 | const char *lvalue, | |
1079 | int ltype, | |
1080 | const char *rvalue, | |
1081 | void *data, | |
1082 | void *userdata) { | |
1083 | ||
983226f3 | 1084 | Network *network = userdata; |
fcbf4cb7 | 1085 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
983226f3 SS |
1086 | int r; |
1087 | ||
1088 | r = route_new_static(network, filename, section_line, &n); | |
1089 | if (r < 0) | |
1090 | return r; | |
1091 | ||
1092 | if (streq(rvalue, "unicast")) | |
1093 | n->type = RTN_UNICAST; | |
1094 | else if (streq(rvalue, "blackhole")) | |
1095 | n->type = RTN_BLACKHOLE; | |
1096 | else if (streq(rvalue, "unreachable")) | |
1097 | n->type = RTN_UNREACHABLE; | |
1098 | else if (streq(rvalue, "prohibit")) | |
1099 | n->type = RTN_PROHIBIT; | |
2d53f310 HY |
1100 | else if (streq(rvalue, "throw")) |
1101 | n->type = RTN_THROW; | |
983226f3 | 1102 | else { |
f205a92a YW |
1103 | log_syntax(unit, LOG_ERR, filename, line, r, |
1104 | "Could not parse route type \"%s\", ignoring assignment: %m", rvalue); | |
983226f3 SS |
1105 | return 0; |
1106 | } | |
1107 | ||
aff44301 | 1108 | TAKE_PTR(n); |
983226f3 SS |
1109 | return 0; |
1110 | } | |
323d9329 | 1111 | |
27efb52b YW |
1112 | int config_parse_tcp_window( |
1113 | const char *unit, | |
1114 | const char *filename, | |
1115 | unsigned line, | |
1116 | const char *section, | |
1117 | unsigned section_line, | |
1118 | const char *lvalue, | |
1119 | int ltype, | |
1120 | const char *rvalue, | |
1121 | void *data, | |
1122 | void *userdata) { | |
1123 | ||
fcbf4cb7 | 1124 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
6b21ad33 SS |
1125 | Network *network = userdata; |
1126 | uint64_t k; | |
323d9329 SS |
1127 | int r; |
1128 | ||
1129 | assert(filename); | |
1130 | assert(section); | |
1131 | assert(lvalue); | |
1132 | assert(rvalue); | |
1133 | assert(data); | |
1134 | ||
1135 | r = route_new_static(network, filename, section_line, &n); | |
1136 | if (r < 0) | |
1137 | return r; | |
1138 | ||
6b21ad33 | 1139 | r = parse_size(rvalue, 1024, &k); |
f205a92a | 1140 | if (r < 0) { |
323d9329 | 1141 | log_syntax(unit, LOG_ERR, filename, line, r, |
f205a92a YW |
1142 | "Could not parse TCP %s \"%s\", ignoring assignment: %m", lvalue, rvalue); |
1143 | return 0; | |
1144 | } | |
1145 | if (k > UINT32_MAX) { | |
1146 | log_syntax(unit, LOG_ERR, filename, line, 0, | |
1147 | "Specified TCP %s \"%s\" is too large, ignoring assignment: %m", lvalue, rvalue); | |
323d9329 SS |
1148 | return 0; |
1149 | } | |
1150 | ||
1151 | if (streq(lvalue, "InitialCongestionWindow")) | |
1152 | n->initcwnd = k; | |
1153 | else if (streq(lvalue, "InitialAdvertisedReceiveWindow")) | |
1154 | n->initrwnd = k; | |
f205a92a YW |
1155 | else |
1156 | assert_not_reached("Invalid TCP window type."); | |
323d9329 | 1157 | |
aff44301 | 1158 | TAKE_PTR(n); |
323d9329 SS |
1159 | return 0; |
1160 | } | |
09f5dfad | 1161 | |
27efb52b YW |
1162 | int config_parse_quickack( |
1163 | const char *unit, | |
1164 | const char *filename, | |
1165 | unsigned line, | |
1166 | const char *section, | |
1167 | unsigned section_line, | |
1168 | const char *lvalue, | |
1169 | int ltype, | |
1170 | const char *rvalue, | |
1171 | void *data, | |
1172 | void *userdata) { | |
1173 | ||
fcbf4cb7 | 1174 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
09f5dfad SS |
1175 | Network *network = userdata; |
1176 | int k, r; | |
1177 | ||
1178 | assert(filename); | |
1179 | assert(section); | |
1180 | assert(lvalue); | |
1181 | assert(rvalue); | |
1182 | assert(data); | |
1183 | ||
1184 | r = route_new_static(network, filename, section_line, &n); | |
1185 | if (r < 0) | |
1186 | return r; | |
1187 | ||
1188 | k = parse_boolean(rvalue); | |
1189 | if (k < 0) { | |
f205a92a YW |
1190 | log_syntax(unit, LOG_ERR, filename, line, k, |
1191 | "Failed to parse TCP quickack, ignoring: %s", rvalue); | |
09f5dfad SS |
1192 | return 0; |
1193 | } | |
1194 | ||
1195 | n->quickack = !!k; | |
aff44301 | 1196 | TAKE_PTR(n); |
09f5dfad SS |
1197 | return 0; |
1198 | } | |
cea79e66 SS |
1199 | |
1200 | int config_parse_route_mtu( | |
1201 | const char *unit, | |
1202 | const char *filename, | |
1203 | unsigned line, | |
1204 | const char *section, | |
1205 | unsigned section_line, | |
1206 | const char *lvalue, | |
1207 | int ltype, | |
1208 | const char *rvalue, | |
1209 | void *data, | |
1210 | void *userdata) { | |
1211 | ||
1212 | Network *network = userdata; | |
fcbf4cb7 | 1213 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
cea79e66 SS |
1214 | int r; |
1215 | ||
1216 | assert(filename); | |
1217 | assert(section); | |
1218 | assert(lvalue); | |
1219 | assert(rvalue); | |
1220 | assert(data); | |
1221 | ||
1222 | r = route_new_static(network, filename, section_line, &n); | |
1223 | if (r < 0) | |
1224 | return r; | |
1225 | ||
1226 | r = config_parse_mtu(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &n->mtu, userdata); | |
1227 | if (r < 0) | |
1228 | return r; | |
1229 | ||
aff44301 | 1230 | TAKE_PTR(n); |
cea79e66 SS |
1231 | return 0; |
1232 | } | |
fcbf4cb7 YW |
1233 | |
1234 | int route_section_verify(Route *route, Network *network) { | |
1235 | if (section_is_invalid(route->section)) | |
1236 | return -EINVAL; | |
1237 | ||
1238 | if (route->family == AF_UNSPEC) { | |
1239 | assert(route->section); | |
1240 | ||
1241 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
1242 | "%s: Route section without Gateway=, Destination=, Source=, " | |
1243 | "or PreferredSource= field configured. " | |
1244 | "Ignoring [Route] section from line %u.", | |
1245 | route->section->filename, route->section->line); | |
1246 | } | |
1247 | ||
1248 | if (network->n_static_addresses == 0 && | |
1249 | in_addr_is_null(route->family, &route->gw) == 0 && | |
1250 | route->gateway_onlink < 0) { | |
1251 | log_warning("%s: Gateway= without static address configured. " | |
1252 | "Enabling GatewayOnLink= option.", | |
1253 | network->filename); | |
1254 | route->gateway_onlink = true; | |
1255 | } | |
1256 | ||
1257 | return 0; | |
1258 | } |