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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" |
ca5ad760 | 10 | #include "networkd-ipv4ll.h" |
23f53b99 | 11 | #include "networkd-manager.h" |
6bedfcbb | 12 | #include "networkd-route.h" |
6bedfcbb | 13 | #include "parse-util.h" |
1c8e710c | 14 | #include "set.h" |
d308bb99 | 15 | #include "socket-netlink.h" |
7a22312d | 16 | #include "string-table.h" |
07630cea | 17 | #include "string-util.h" |
d96edb2c | 18 | #include "strv.h" |
b297e0a7 | 19 | #include "strxcpyx.h" |
47d2d30d | 20 | #include "sysctl-util.h" |
c0d48bc5 | 21 | #include "vrf.h" |
f579559b | 22 | |
47d2d30d ZJS |
23 | #define ROUTES_DEFAULT_MAX_PER_FAMILY 4096U |
24 | ||
25 | static unsigned routes_max(void) { | |
26 | static thread_local unsigned cached = 0; | |
27 | ||
28 | _cleanup_free_ char *s4 = NULL, *s6 = NULL; | |
29 | unsigned val4 = ROUTES_DEFAULT_MAX_PER_FAMILY, val6 = ROUTES_DEFAULT_MAX_PER_FAMILY; | |
30 | ||
31 | if (cached > 0) | |
32 | return cached; | |
33 | ||
34 | if (sysctl_read("net/ipv4/route/max_size", &s4) >= 0) { | |
35 | truncate_nl(s4); | |
36 | if (safe_atou(s4, &val4) >= 0 && | |
37 | val4 == 2147483647U) | |
38 | /* This is the default "no limit" value in the kernel */ | |
39 | val4 = ROUTES_DEFAULT_MAX_PER_FAMILY; | |
40 | } | |
41 | ||
42 | if (sysctl_read("net/ipv6/route/max_size", &s6) >= 0) { | |
43 | truncate_nl(s6); | |
44 | (void) safe_atou(s6, &val6); | |
45 | } | |
46 | ||
47 | cached = MAX(ROUTES_DEFAULT_MAX_PER_FAMILY, val4) + | |
48 | MAX(ROUTES_DEFAULT_MAX_PER_FAMILY, val6); | |
49 | return cached; | |
50 | } | |
8c34b963 | 51 | |
ed9e361a | 52 | int route_new(Route **ret) { |
8e766630 | 53 | _cleanup_(route_freep) Route *route = NULL; |
f0213e37 | 54 | |
17f9c355 | 55 | route = new(Route, 1); |
f0213e37 TG |
56 | if (!route) |
57 | return -ENOMEM; | |
58 | ||
17f9c355 YW |
59 | *route = (Route) { |
60 | .family = AF_UNSPEC, | |
61 | .scope = RT_SCOPE_UNIVERSE, | |
62 | .protocol = RTPROT_UNSPEC, | |
63 | .type = RTN_UNICAST, | |
64 | .table = RT_TABLE_MAIN, | |
65 | .lifetime = USEC_INFINITY, | |
66 | .quickack = -1, | |
633c7258 | 67 | .fast_open_no_cookie = -1, |
54901fd2 | 68 | .gateway_onlink = -1, |
9b88f20a | 69 | .ttl_propagate = -1, |
17f9c355 | 70 | }; |
f0213e37 | 71 | |
1cc6c93a | 72 | *ret = TAKE_PTR(route); |
f0213e37 TG |
73 | |
74 | return 0; | |
75 | } | |
76 | ||
9560e5b3 | 77 | static int route_new_static(Network *network, const char *filename, unsigned section_line, Route **ret) { |
8e766630 LP |
78 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
79 | _cleanup_(route_freep) Route *route = NULL; | |
f0213e37 | 80 | int r; |
f579559b | 81 | |
8c34b963 LP |
82 | assert(network); |
83 | assert(ret); | |
48317c39 | 84 | assert(!!filename == (section_line > 0)); |
8c34b963 | 85 | |
48317c39 | 86 | if (filename) { |
f4859fc7 SS |
87 | r = network_config_section_new(filename, section_line, &n); |
88 | if (r < 0) | |
89 | return r; | |
90 | ||
91 | route = hashmap_get(network->routes_by_section, n); | |
6ae115c1 | 92 | if (route) { |
1cc6c93a | 93 | *ret = TAKE_PTR(route); |
6ae115c1 TG |
94 | |
95 | return 0; | |
96 | } | |
97 | } | |
98 | ||
47d2d30d | 99 | if (network->n_static_routes >= routes_max()) |
8c34b963 LP |
100 | return -E2BIG; |
101 | ||
ed9e361a | 102 | r = route_new(&route); |
f0213e37 TG |
103 | if (r < 0) |
104 | return r; | |
801bd9e8 | 105 | |
ed9e361a | 106 | route->protocol = RTPROT_STATIC; |
0f7f2769 YW |
107 | route->network = network; |
108 | LIST_PREPEND(routes, network->static_routes, route); | |
109 | network->n_static_routes++; | |
f579559b | 110 | |
48317c39 | 111 | if (filename) { |
1cc6c93a | 112 | route->section = TAKE_PTR(n); |
cacc1dbf | 113 | |
3e570042 YW |
114 | r = hashmap_ensure_allocated(&network->routes_by_section, &network_config_hash_ops); |
115 | if (r < 0) | |
116 | return r; | |
117 | ||
fcc48287 | 118 | r = hashmap_put(network->routes_by_section, route->section, route); |
21b39268 LP |
119 | if (r < 0) |
120 | return r; | |
6ae115c1 TG |
121 | } |
122 | ||
1cc6c93a | 123 | *ret = TAKE_PTR(route); |
f579559b TG |
124 | |
125 | return 0; | |
126 | } | |
127 | ||
128 | void route_free(Route *route) { | |
129 | if (!route) | |
130 | return; | |
131 | ||
f048a16b | 132 | if (route->network) { |
3d3d4255 | 133 | LIST_REMOVE(routes, route->network->static_routes, route); |
f579559b | 134 | |
8c34b963 LP |
135 | assert(route->network->n_static_routes > 0); |
136 | route->network->n_static_routes--; | |
137 | ||
fd45e522 | 138 | if (route->section) |
f4859fc7 | 139 | hashmap_remove(route->network->routes_by_section, route->section); |
f048a16b | 140 | } |
6ae115c1 | 141 | |
fd45e522 ZJS |
142 | network_config_section_free(route->section); |
143 | ||
1c8e710c TG |
144 | if (route->link) { |
145 | set_remove(route->link->routes, route); | |
146 | set_remove(route->link->routes_foreign, route); | |
147 | } | |
148 | ||
6ff5cc6b YW |
149 | ordered_set_free_free(route->multipath_routes); |
150 | ||
f833694d TG |
151 | sd_event_source_unref(route->expire); |
152 | ||
f579559b TG |
153 | free(route); |
154 | } | |
155 | ||
7a08d314 | 156 | static void route_hash_func(const Route *route, struct siphash *state) { |
bb7ae737 TG |
157 | assert(route); |
158 | ||
159 | siphash24_compress(&route->family, sizeof(route->family), state); | |
160 | ||
01aaa3df YW |
161 | switch (route->family) { |
162 | case AF_INET: | |
163 | case AF_INET6: | |
01aaa3df | 164 | siphash24_compress(&route->dst_prefixlen, sizeof(route->dst_prefixlen), state); |
67e05dd8 ZJS |
165 | siphash24_compress(&route->dst, FAMILY_ADDRESS_SIZE(route->family), state); |
166 | ||
01aaa3df | 167 | siphash24_compress(&route->src_prefixlen, sizeof(route->src_prefixlen), state); |
67e05dd8 ZJS |
168 | siphash24_compress(&route->src, FAMILY_ADDRESS_SIZE(route->family), state); |
169 | ||
170 | siphash24_compress(&route->gw, FAMILY_ADDRESS_SIZE(route->family), state); | |
171 | ||
01aaa3df YW |
172 | siphash24_compress(&route->prefsrc, FAMILY_ADDRESS_SIZE(route->family), state); |
173 | ||
174 | siphash24_compress(&route->tos, sizeof(route->tos), state); | |
175 | siphash24_compress(&route->priority, sizeof(route->priority), state); | |
176 | siphash24_compress(&route->table, sizeof(route->table), state); | |
177 | siphash24_compress(&route->protocol, sizeof(route->protocol), state); | |
178 | siphash24_compress(&route->scope, sizeof(route->scope), state); | |
179 | siphash24_compress(&route->type, sizeof(route->type), state); | |
67e05dd8 | 180 | |
fa3e401a YW |
181 | siphash24_compress(&route->initcwnd, sizeof(route->initcwnd), state); |
182 | siphash24_compress(&route->initrwnd, sizeof(route->initrwnd), state); | |
01aaa3df YW |
183 | |
184 | break; | |
185 | default: | |
186 | /* treat any other address family as AF_UNSPEC */ | |
187 | break; | |
188 | } | |
189 | } | |
190 | ||
c077a205 | 191 | static int route_compare_func(const Route *a, const Route *b) { |
01aaa3df YW |
192 | int r; |
193 | ||
194 | r = CMP(a->family, b->family); | |
195 | if (r != 0) | |
196 | return r; | |
197 | ||
198 | switch (a->family) { | |
199 | case AF_INET: | |
200 | case AF_INET6: | |
201 | r = CMP(a->dst_prefixlen, b->dst_prefixlen); | |
202 | if (r != 0) | |
203 | return r; | |
204 | ||
67e05dd8 ZJS |
205 | r = memcmp(&a->dst, &b->dst, FAMILY_ADDRESS_SIZE(a->family)); |
206 | if (r != 0) | |
207 | return r; | |
208 | ||
01aaa3df YW |
209 | r = CMP(a->src_prefixlen, b->src_prefixlen); |
210 | if (r != 0) | |
211 | return r; | |
212 | ||
67e05dd8 | 213 | r = memcmp(&a->src, &b->src, FAMILY_ADDRESS_SIZE(a->family)); |
01aaa3df YW |
214 | if (r != 0) |
215 | return r; | |
216 | ||
67e05dd8 | 217 | r = memcmp(&a->gw, &b->gw, FAMILY_ADDRESS_SIZE(a->family)); |
01aaa3df YW |
218 | if (r != 0) |
219 | return r; | |
220 | ||
67e05dd8 | 221 | r = memcmp(&a->prefsrc, &b->prefsrc, FAMILY_ADDRESS_SIZE(a->family)); |
01aaa3df YW |
222 | if (r != 0) |
223 | return r; | |
224 | ||
67e05dd8 | 225 | r = CMP(a->tos, b->tos); |
01aaa3df YW |
226 | if (r != 0) |
227 | return r; | |
228 | ||
67e05dd8 | 229 | r = CMP(a->priority, b->priority); |
01aaa3df YW |
230 | if (r != 0) |
231 | return r; | |
232 | ||
67e05dd8 | 233 | r = CMP(a->table, b->table); |
01aaa3df YW |
234 | if (r != 0) |
235 | return r; | |
236 | ||
67e05dd8 | 237 | r = CMP(a->protocol, b->protocol); |
fa3e401a YW |
238 | if (r != 0) |
239 | return r; | |
240 | ||
67e05dd8 | 241 | r = CMP(a->scope, b->scope); |
fa3e401a YW |
242 | if (r != 0) |
243 | return r; | |
244 | ||
67e05dd8 | 245 | r = CMP(a->type, b->type); |
01aaa3df YW |
246 | if (r != 0) |
247 | return r; | |
248 | ||
67e05dd8 | 249 | r = CMP(a->initcwnd, b->initcwnd); |
01aaa3df YW |
250 | if (r != 0) |
251 | return r; | |
252 | ||
67e05dd8 | 253 | r = CMP(a->initrwnd, b->initrwnd); |
01aaa3df YW |
254 | if (r != 0) |
255 | return r; | |
256 | ||
67e05dd8 | 257 | return 0; |
01aaa3df YW |
258 | default: |
259 | /* treat any other address family as AF_UNSPEC */ | |
260 | return 0; | |
261 | } | |
262 | } | |
263 | ||
264 | DEFINE_HASH_OPS_WITH_KEY_DESTRUCTOR( | |
c077a205 | 265 | route_hash_ops, |
01aaa3df | 266 | Route, |
c077a205 YW |
267 | route_hash_func, |
268 | route_compare_func, | |
01aaa3df YW |
269 | route_free); |
270 | ||
7ecf0c3e TJ |
271 | bool route_equal(Route *r1, Route *r2) { |
272 | if (r1 == r2) | |
273 | return true; | |
274 | ||
275 | if (!r1 || !r2) | |
276 | return false; | |
277 | ||
278 | return route_compare_func(r1, r2) == 0; | |
279 | } | |
280 | ||
f1368755 YW |
281 | int route_get(Link *link, Route *in, Route **ret) { |
282 | ||
283 | Route *existing; | |
1b566071 LP |
284 | |
285 | assert(link); | |
f1368755 | 286 | assert(in); |
1c8e710c | 287 | |
f1368755 | 288 | existing = set_get(link->routes, in); |
1c8e710c | 289 | if (existing) { |
1b566071 LP |
290 | if (ret) |
291 | *ret = existing; | |
1c8e710c | 292 | return 1; |
1c8e710c TG |
293 | } |
294 | ||
f1368755 | 295 | existing = set_get(link->routes_foreign, in); |
1b566071 LP |
296 | if (existing) { |
297 | if (ret) | |
298 | *ret = existing; | |
299 | return 0; | |
300 | } | |
1c8e710c | 301 | |
1b566071 | 302 | return -ENOENT; |
1c8e710c TG |
303 | } |
304 | ||
f1368755 | 305 | static int route_add_internal(Link *link, Set **routes, Route *in, Route **ret) { |
889b550f | 306 | |
8e766630 | 307 | _cleanup_(route_freep) Route *route = NULL; |
1c8e710c TG |
308 | int r; |
309 | ||
310 | assert(link); | |
311 | assert(routes); | |
f1368755 | 312 | assert(in); |
1c8e710c TG |
313 | |
314 | r = route_new(&route); | |
315 | if (r < 0) | |
316 | return r; | |
317 | ||
f1368755 YW |
318 | route->family = in->family; |
319 | route->src = in->src; | |
320 | route->src_prefixlen = in->src_prefixlen; | |
321 | route->dst = in->dst; | |
322 | route->dst_prefixlen = in->dst_prefixlen; | |
323 | route->gw = in->gw; | |
324 | route->prefsrc = in->prefsrc; | |
325 | route->scope = in->scope; | |
326 | route->protocol = in->protocol; | |
327 | route->type = in->type; | |
328 | route->tos = in->tos; | |
329 | route->priority = in->priority; | |
330 | route->table = in->table; | |
331 | route->initcwnd = in->initcwnd; | |
332 | route->initrwnd = in->initrwnd; | |
333 | route->lifetime = in->lifetime; | |
1c8e710c | 334 | |
de7fef4b | 335 | r = set_ensure_put(routes, &route_hash_ops, route); |
1c8e710c TG |
336 | if (r < 0) |
337 | return r; | |
75a302b5 YW |
338 | if (r == 0) |
339 | return -EEXIST; | |
1c8e710c TG |
340 | |
341 | route->link = link; | |
342 | ||
343 | if (ret) | |
344 | *ret = route; | |
345 | ||
346 | route = NULL; | |
347 | ||
348 | return 0; | |
349 | } | |
350 | ||
f1368755 YW |
351 | int route_add_foreign(Link *link, Route *in, Route **ret) { |
352 | return route_add_internal(link, &link->routes_foreign, in, ret); | |
1c8e710c TG |
353 | } |
354 | ||
f1368755 | 355 | int route_add(Link *link, Route *in, Route **ret) { |
889b550f | 356 | |
1c8e710c TG |
357 | Route *route; |
358 | int r; | |
359 | ||
f1368755 | 360 | r = route_get(link, in, &route); |
1c8e710c TG |
361 | if (r == -ENOENT) { |
362 | /* Route does not exist, create a new one */ | |
f1368755 | 363 | r = route_add_internal(link, &link->routes, in, &route); |
1c8e710c TG |
364 | if (r < 0) |
365 | return r; | |
366 | } else if (r == 0) { | |
367 | /* Take over a foreign route */ | |
de7fef4b | 368 | r = set_ensure_put(&link->routes, &route_hash_ops, route); |
1c8e710c TG |
369 | if (r < 0) |
370 | return r; | |
371 | ||
372 | set_remove(link->routes_foreign, route); | |
373 | } else if (r == 1) { | |
374 | /* Route exists, do nothing */ | |
375 | ; | |
376 | } else | |
377 | return r; | |
378 | ||
856e309d MC |
379 | if (ret) |
380 | *ret = route; | |
1c8e710c TG |
381 | |
382 | return 0; | |
383 | } | |
384 | ||
302a796f | 385 | static int route_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { |
4645ad47 YW |
386 | int r; |
387 | ||
388 | assert(m); | |
389 | assert(link); | |
390 | assert(link->ifname); | |
391 | ||
392 | if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
393 | return 1; | |
394 | ||
395 | r = sd_netlink_message_get_errno(m); | |
396 | if (r < 0 && r != -ESRCH) | |
5ecb131d | 397 | log_link_message_warning_errno(link, m, r, "Could not drop route, ignoring"); |
4645ad47 YW |
398 | |
399 | return 1; | |
400 | } | |
401 | ||
91b5f997 | 402 | int route_remove(Route *route, Link *link, |
302a796f | 403 | link_netlink_message_handler_t callback) { |
27efb52b | 404 | |
4afd3348 | 405 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
5c1d3fc9 UTL |
406 | int r; |
407 | ||
408 | assert(link); | |
409 | assert(link->manager); | |
410 | assert(link->manager->rtnl); | |
411 | assert(link->ifindex > 0); | |
4c701096 | 412 | assert(IN_SET(route->family, AF_INET, AF_INET6)); |
5c1d3fc9 UTL |
413 | |
414 | r = sd_rtnl_message_new_route(link->manager->rtnl, &req, | |
28cc555d DW |
415 | RTM_DELROUTE, route->family, |
416 | route->protocol); | |
f647962d | 417 | if (r < 0) |
7750b796 | 418 | return log_link_error_errno(link, r, "Could not create RTM_DELROUTE message: %m"); |
5c1d3fc9 | 419 | |
b297e0a7 YW |
420 | if (DEBUG_LOGGING) { |
421 | _cleanup_free_ char *dst = NULL, *dst_prefixlen = NULL, *src = NULL, *gw = NULL, *prefsrc = NULL; | |
d3e291fd | 422 | char scope[ROUTE_SCOPE_STR_MAX], table[ROUTE_TABLE_STR_MAX], protocol[ROUTE_PROTOCOL_STR_MAX]; |
b297e0a7 YW |
423 | |
424 | if (!in_addr_is_null(route->family, &route->dst)) { | |
425 | (void) in_addr_to_string(route->family, &route->dst, &dst); | |
426 | (void) asprintf(&dst_prefixlen, "/%u", route->dst_prefixlen); | |
427 | } | |
428 | if (!in_addr_is_null(route->family, &route->src)) | |
429 | (void) in_addr_to_string(route->family, &route->src, &src); | |
430 | if (!in_addr_is_null(route->family, &route->gw)) | |
431 | (void) in_addr_to_string(route->family, &route->gw, &gw); | |
432 | if (!in_addr_is_null(route->family, &route->prefsrc)) | |
433 | (void) in_addr_to_string(route->family, &route->prefsrc, &prefsrc); | |
434 | ||
d3e291fd | 435 | log_link_debug(link, "Removing route: dst: %s%s, src: %s, gw: %s, prefsrc: %s, scope: %s, table: %s, proto: %s, type: %s", |
b297e0a7 YW |
436 | strna(dst), strempty(dst_prefixlen), strna(src), strna(gw), strna(prefsrc), |
437 | format_route_scope(route->scope, scope, sizeof(scope)), | |
438 | format_route_table(route->table, table, sizeof(table)), | |
d3e291fd | 439 | format_route_protocol(route->protocol, protocol, sizeof(protocol)), |
b297e0a7 YW |
440 | strna(route_type_to_string(route->type))); |
441 | } | |
442 | ||
d40b01e4 | 443 | if (in_addr_is_null(route->family, &route->gw) == 0) { |
43409486 | 444 | r = netlink_message_append_in_addr_union(req, RTA_GATEWAY, route->family, &route->gw); |
f647962d | 445 | if (r < 0) |
7750b796 | 446 | return log_link_error_errno(link, r, "Could not append RTA_GATEWAY attribute: %m"); |
5c1d3fc9 UTL |
447 | } |
448 | ||
449 | if (route->dst_prefixlen) { | |
43409486 | 450 | r = netlink_message_append_in_addr_union(req, RTA_DST, route->family, &route->dst); |
f647962d | 451 | if (r < 0) |
7750b796 | 452 | return log_link_error_errno(link, r, "Could not append RTA_DST attribute: %m"); |
5c1d3fc9 UTL |
453 | |
454 | r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); | |
f647962d | 455 | if (r < 0) |
7750b796 | 456 | return log_link_error_errno(link, r, "Could not set destination prefix length: %m"); |
5c1d3fc9 UTL |
457 | } |
458 | ||
9e7e4408 | 459 | if (route->src_prefixlen) { |
43409486 | 460 | r = netlink_message_append_in_addr_union(req, RTA_SRC, route->family, &route->src); |
9e7e4408 | 461 | if (r < 0) |
7750b796 | 462 | return log_link_error_errno(link, r, "Could not append RTA_SRC attribute: %m"); |
9e7e4408 TG |
463 | |
464 | r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); | |
465 | if (r < 0) | |
7750b796 | 466 | return log_link_error_errno(link, r, "Could not set source prefix length: %m"); |
9e7e4408 TG |
467 | } |
468 | ||
d40b01e4 | 469 | if (in_addr_is_null(route->family, &route->prefsrc) == 0) { |
43409486 | 470 | r = netlink_message_append_in_addr_union(req, RTA_PREFSRC, route->family, &route->prefsrc); |
f647962d | 471 | if (r < 0) |
7750b796 | 472 | return log_link_error_errno(link, r, "Could not append RTA_PREFSRC attribute: %m"); |
46b0c76e ERB |
473 | } |
474 | ||
5c1d3fc9 | 475 | r = sd_rtnl_message_route_set_scope(req, route->scope); |
f647962d | 476 | if (r < 0) |
7750b796 | 477 | return log_link_error_errno(link, r, "Could not set scope: %m"); |
5c1d3fc9 | 478 | |
86655331 | 479 | r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); |
f647962d | 480 | if (r < 0) |
7750b796 | 481 | return log_link_error_errno(link, r, "Could not append RTA_PRIORITY attribute: %m"); |
5c1d3fc9 | 482 | |
2d53f310 | 483 | if (!IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE, RTN_THROW)) { |
983226f3 SS |
484 | r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); |
485 | if (r < 0) | |
7750b796 | 486 | return log_link_error_errno(link, r, "Could not append RTA_OIF attribute: %m"); |
983226f3 | 487 | } |
5c1d3fc9 | 488 | |
302a796f YW |
489 | r = netlink_call_async(link->manager->rtnl, NULL, req, |
490 | callback ?: route_remove_handler, | |
491 | link_netlink_destroy_callback, link); | |
f647962d | 492 | if (r < 0) |
7750b796 | 493 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
5c1d3fc9 | 494 | |
563c69c6 TG |
495 | link_ref(link); |
496 | ||
5c1d3fc9 UTL |
497 | return 0; |
498 | } | |
499 | ||
f833694d TG |
500 | int route_expire_handler(sd_event_source *s, uint64_t usec, void *userdata) { |
501 | Route *route = userdata; | |
502 | int r; | |
503 | ||
504 | assert(route); | |
505 | ||
4645ad47 | 506 | r = route_remove(route, route->link, NULL); |
f833694d | 507 | if (r < 0) |
98b02994 | 508 | log_link_warning_errno(route->link, r, "Could not remove route: %m"); |
3bdccf69 | 509 | else |
fe7ca21a | 510 | route_free(route); |
f833694d TG |
511 | |
512 | return 1; | |
513 | } | |
514 | ||
6ff5cc6b YW |
515 | static int append_nexthop_one(Route *route, MultipathRoute *m, struct rtattr **rta, size_t offset) { |
516 | struct rtnexthop *rtnh; | |
517 | struct rtattr *new_rta; | |
518 | int r; | |
519 | ||
520 | assert(route); | |
521 | assert(m); | |
522 | assert(rta); | |
523 | assert(*rta); | |
524 | ||
525 | new_rta = realloc(*rta, RTA_ALIGN((*rta)->rta_len) + RTA_SPACE(sizeof(struct rtnexthop))); | |
526 | if (!new_rta) | |
527 | return -ENOMEM; | |
528 | *rta = new_rta; | |
529 | ||
530 | rtnh = (struct rtnexthop *)((uint8_t *) *rta + offset); | |
531 | *rtnh = (struct rtnexthop) { | |
532 | .rtnh_len = sizeof(*rtnh), | |
533 | .rtnh_ifindex = m->ifindex, | |
534 | .rtnh_hops = m->weight > 0 ? m->weight - 1 : 0, | |
535 | }; | |
536 | ||
537 | (*rta)->rta_len += sizeof(struct rtnexthop); | |
538 | ||
539 | if (route->family == m->gateway.family) { | |
540 | r = rtattr_append_attribute(rta, RTA_GATEWAY, &m->gateway.address, FAMILY_ADDRESS_SIZE(m->gateway.family)); | |
541 | if (r < 0) | |
542 | goto clear; | |
543 | rtnh = (struct rtnexthop *)((uint8_t *) *rta + offset); | |
544 | rtnh->rtnh_len += RTA_SPACE(FAMILY_ADDRESS_SIZE(m->gateway.family)); | |
545 | } else { | |
546 | r = rtattr_append_attribute(rta, RTA_VIA, &m->gateway, FAMILY_ADDRESS_SIZE(m->gateway.family) + sizeof(m->gateway.family)); | |
547 | if (r < 0) | |
548 | goto clear; | |
549 | rtnh = (struct rtnexthop *)((uint8_t *) *rta + offset); | |
550 | rtnh->rtnh_len += RTA_SPACE(FAMILY_ADDRESS_SIZE(m->gateway.family) + sizeof(m->gateway.family)); | |
551 | } | |
552 | ||
553 | return 0; | |
554 | ||
555 | clear: | |
556 | (*rta)->rta_len -= sizeof(struct rtnexthop); | |
557 | return r; | |
558 | } | |
559 | ||
560 | static int append_nexthops(Route *route, sd_netlink_message *req) { | |
561 | _cleanup_free_ struct rtattr *rta = NULL; | |
562 | struct rtnexthop *rtnh; | |
563 | MultipathRoute *m; | |
564 | size_t offset; | |
565 | Iterator i; | |
566 | int r; | |
567 | ||
568 | if (ordered_set_isempty(route->multipath_routes)) | |
569 | return 0; | |
570 | ||
571 | rta = new(struct rtattr, 1); | |
572 | if (!rta) | |
573 | return -ENOMEM; | |
574 | ||
575 | *rta = (struct rtattr) { | |
576 | .rta_type = RTA_MULTIPATH, | |
577 | .rta_len = RTA_LENGTH(0), | |
578 | }; | |
579 | offset = (uint8_t *) RTA_DATA(rta) - (uint8_t *) rta; | |
580 | ||
581 | ORDERED_SET_FOREACH(m, route->multipath_routes, i) { | |
582 | r = append_nexthop_one(route, m, &rta, offset); | |
583 | if (r < 0) | |
584 | return r; | |
585 | ||
586 | rtnh = (struct rtnexthop *)((uint8_t *) rta + offset); | |
587 | offset = (uint8_t *) RTNH_NEXT(rtnh) - (uint8_t *) rta; | |
588 | } | |
589 | ||
590 | r = sd_netlink_message_append_data(req, RTA_MULTIPATH, RTA_DATA(rta), RTA_PAYLOAD(rta)); | |
591 | if (r < 0) | |
592 | return r; | |
593 | ||
594 | return 0; | |
595 | } | |
596 | ||
1b566071 LP |
597 | int route_configure( |
598 | Route *route, | |
599 | Link *link, | |
80b0e860 YW |
600 | link_netlink_message_handler_t callback, |
601 | Route **ret) { | |
1b566071 | 602 | |
4afd3348 LP |
603 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
604 | _cleanup_(sd_event_source_unrefp) sd_event_source *expire = NULL; | |
f579559b TG |
605 | int r; |
606 | ||
f579559b | 607 | assert(link); |
f882c247 TG |
608 | assert(link->manager); |
609 | assert(link->manager->rtnl); | |
f579559b | 610 | assert(link->ifindex > 0); |
4c701096 | 611 | assert(IN_SET(route->family, AF_INET, AF_INET6)); |
bd1175bc | 612 | assert(callback); |
f579559b | 613 | |
f1368755 | 614 | if (route_get(link, route, NULL) <= 0 && |
47d2d30d | 615 | set_size(link->routes) >= routes_max()) |
7750b796 YW |
616 | return log_link_error_errno(link, SYNTHETIC_ERRNO(E2BIG), |
617 | "Too many routes are configured, refusing: %m"); | |
1b566071 | 618 | |
156ed65e YW |
619 | if (DEBUG_LOGGING) { |
620 | _cleanup_free_ char *dst = NULL, *dst_prefixlen = NULL, *src = NULL, *gw = NULL, *prefsrc = NULL; | |
d3e291fd | 621 | char scope[ROUTE_SCOPE_STR_MAX], table[ROUTE_TABLE_STR_MAX], protocol[ROUTE_PROTOCOL_STR_MAX]; |
156ed65e YW |
622 | |
623 | if (!in_addr_is_null(route->family, &route->dst)) { | |
624 | (void) in_addr_to_string(route->family, &route->dst, &dst); | |
625 | (void) asprintf(&dst_prefixlen, "/%u", route->dst_prefixlen); | |
626 | } | |
627 | if (!in_addr_is_null(route->family, &route->src)) | |
628 | (void) in_addr_to_string(route->family, &route->src, &src); | |
629 | if (!in_addr_is_null(route->family, &route->gw)) | |
630 | (void) in_addr_to_string(route->family, &route->gw, &gw); | |
631 | if (!in_addr_is_null(route->family, &route->prefsrc)) | |
632 | (void) in_addr_to_string(route->family, &route->prefsrc, &prefsrc); | |
633 | ||
d3e291fd | 634 | log_link_debug(link, "Configuring route: dst: %s%s, src: %s, gw: %s, prefsrc: %s, scope: %s, table: %s, proto: %s, type: %s", |
b297e0a7 YW |
635 | strna(dst), strempty(dst_prefixlen), strna(src), strna(gw), strna(prefsrc), |
636 | format_route_scope(route->scope, scope, sizeof(scope)), | |
637 | format_route_table(route->table, table, sizeof(table)), | |
d3e291fd | 638 | format_route_protocol(route->protocol, protocol, sizeof(protocol)), |
b297e0a7 | 639 | strna(route_type_to_string(route->type))); |
156ed65e YW |
640 | } |
641 | ||
151b9b96 | 642 | r = sd_rtnl_message_new_route(link->manager->rtnl, &req, |
28cc555d DW |
643 | RTM_NEWROUTE, route->family, |
644 | route->protocol); | |
f647962d | 645 | if (r < 0) |
7750b796 | 646 | return log_link_error_errno(link, r, "Could not create RTM_NEWROUTE message: %m"); |
f579559b | 647 | |
d40b01e4 | 648 | if (in_addr_is_null(route->family, &route->gw) == 0) { |
43409486 | 649 | r = netlink_message_append_in_addr_union(req, RTA_GATEWAY, route->family, &route->gw); |
f647962d | 650 | if (r < 0) |
7750b796 | 651 | return log_link_error_errno(link, r, "Could not append RTA_GATEWAY attribute: %m"); |
c953b24c SS |
652 | |
653 | r = sd_rtnl_message_route_set_family(req, route->family); | |
654 | if (r < 0) | |
7750b796 | 655 | return log_link_error_errno(link, r, "Could not set route family: %m"); |
f579559b TG |
656 | } |
657 | ||
70dc2362 | 658 | if (route->dst_prefixlen > 0) { |
43409486 | 659 | r = netlink_message_append_in_addr_union(req, RTA_DST, route->family, &route->dst); |
f647962d | 660 | if (r < 0) |
7750b796 | 661 | return log_link_error_errno(link, r, "Could not append RTA_DST attribute: %m"); |
6ae115c1 | 662 | |
ae4c67a7 | 663 | r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); |
f647962d | 664 | if (r < 0) |
7750b796 | 665 | return log_link_error_errno(link, r, "Could not set destination prefix length: %m"); |
1f01fb4f TG |
666 | } |
667 | ||
70dc2362 | 668 | if (route->src_prefixlen > 0) { |
43409486 | 669 | r = netlink_message_append_in_addr_union(req, RTA_SRC, route->family, &route->src); |
9e7e4408 | 670 | if (r < 0) |
7750b796 | 671 | return log_link_error_errno(link, r, "Could not append RTA_SRC attribute: %m"); |
9e7e4408 TG |
672 | |
673 | r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); | |
674 | if (r < 0) | |
7750b796 | 675 | return log_link_error_errno(link, r, "Could not set source prefix length: %m"); |
9e7e4408 TG |
676 | } |
677 | ||
d40b01e4 | 678 | if (in_addr_is_null(route->family, &route->prefsrc) == 0) { |
43409486 | 679 | r = netlink_message_append_in_addr_union(req, RTA_PREFSRC, route->family, &route->prefsrc); |
f647962d | 680 | if (r < 0) |
7750b796 | 681 | return log_link_error_errno(link, r, "Could not append RTA_PREFSRC attribute: %m"); |
46b0c76e ERB |
682 | } |
683 | ||
5c1d3fc9 | 684 | r = sd_rtnl_message_route_set_scope(req, route->scope); |
f647962d | 685 | if (r < 0) |
7750b796 | 686 | return log_link_error_errno(link, r, "Could not set scope: %m"); |
5c1d3fc9 | 687 | |
54901fd2 YW |
688 | if (route->gateway_onlink >= 0) |
689 | SET_FLAG(route->flags, RTNH_F_ONLINK, route->gateway_onlink); | |
690 | ||
3b015d40 TG |
691 | r = sd_rtnl_message_route_set_flags(req, route->flags); |
692 | if (r < 0) | |
7750b796 | 693 | return log_link_error_errno(link, r, "Could not set flags: %m"); |
c953b24c | 694 | |
a0d95bbc | 695 | if (route->table != RT_TABLE_MAIN) { |
c953b24c SS |
696 | if (route->table < 256) { |
697 | r = sd_rtnl_message_route_set_table(req, route->table); | |
698 | if (r < 0) | |
7750b796 | 699 | return log_link_error_errno(link, r, "Could not set route table: %m"); |
c953b24c | 700 | } else { |
c953b24c SS |
701 | r = sd_rtnl_message_route_set_table(req, RT_TABLE_UNSPEC); |
702 | if (r < 0) | |
7750b796 | 703 | return log_link_error_errno(link, r, "Could not set route table: %m"); |
c953b24c | 704 | |
06976f5b | 705 | /* Table attribute to allow more than 256. */ |
c953b24c SS |
706 | r = sd_netlink_message_append_data(req, RTA_TABLE, &route->table, sizeof(route->table)); |
707 | if (r < 0) | |
7750b796 | 708 | return log_link_error_errno(link, r, "Could not append RTA_TABLE attribute: %m"); |
c953b24c SS |
709 | } |
710 | } | |
3b015d40 | 711 | |
86655331 | 712 | r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); |
f647962d | 713 | if (r < 0) |
7750b796 | 714 | return log_link_error_errno(link, r, "Could not append RTA_PRIORITY attribute: %m"); |
5c1d3fc9 | 715 | |
3b015d40 TG |
716 | r = sd_netlink_message_append_u8(req, RTA_PREF, route->pref); |
717 | if (r < 0) | |
7750b796 | 718 | return log_link_error_errno(link, r, "Could not append RTA_PREF attribute: %m"); |
3b015d40 | 719 | |
f02ba163 DD |
720 | if (route->lifetime != USEC_INFINITY && kernel_route_expiration_supported()) { |
721 | r = sd_netlink_message_append_u32(req, RTA_EXPIRES, | |
722 | DIV_ROUND_UP(usec_sub_unsigned(route->lifetime, now(clock_boottime_or_monotonic())), USEC_PER_SEC)); | |
723 | if (r < 0) | |
7750b796 | 724 | return log_link_error_errno(link, r, "Could not append RTA_EXPIRES attribute: %m"); |
f02ba163 DD |
725 | } |
726 | ||
983226f3 | 727 | r = sd_rtnl_message_route_set_type(req, route->type); |
f647962d | 728 | if (r < 0) |
7750b796 | 729 | return log_link_error_errno(link, r, "Could not set route type: %m"); |
983226f3 | 730 | |
2d53f310 | 731 | if (!IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE, RTN_THROW)) { |
983226f3 SS |
732 | r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); |
733 | if (r < 0) | |
7750b796 | 734 | return log_link_error_errno(link, r, "Could not append RTA_OIF attribute: %m"); |
983226f3 | 735 | } |
f579559b | 736 | |
9b88f20a SS |
737 | if (route->ttl_propagate >= 0) { |
738 | r = sd_netlink_message_append_u8(req, RTA_TTL_PROPAGATE, route->ttl_propagate); | |
739 | if (r < 0) | |
740 | return log_link_error_errno(link, r, "Could not append RTA_TTL_PROPAGATE attribute: %m"); | |
741 | } | |
742 | ||
d6fceaf1 SS |
743 | r = sd_netlink_message_open_container(req, RTA_METRICS); |
744 | if (r < 0) | |
7750b796 | 745 | return log_link_error_errno(link, r, "Could not append RTA_METRICS attribute: %m"); |
d6fceaf1 SS |
746 | |
747 | if (route->mtu > 0) { | |
748 | r = sd_netlink_message_append_u32(req, RTAX_MTU, route->mtu); | |
749 | if (r < 0) | |
7750b796 | 750 | return log_link_error_errno(link, r, "Could not append RTAX_MTU attribute: %m"); |
d6fceaf1 SS |
751 | } |
752 | ||
6b21ad33 | 753 | if (route->initcwnd > 0) { |
323d9329 SS |
754 | r = sd_netlink_message_append_u32(req, RTAX_INITCWND, route->initcwnd); |
755 | if (r < 0) | |
7750b796 | 756 | return log_link_error_errno(link, r, "Could not append RTAX_INITCWND attribute: %m"); |
323d9329 SS |
757 | } |
758 | ||
6b21ad33 | 759 | if (route->initrwnd > 0) { |
323d9329 SS |
760 | r = sd_netlink_message_append_u32(req, RTAX_INITRWND, route->initrwnd); |
761 | if (r < 0) | |
7750b796 | 762 | return log_link_error_errno(link, r, "Could not append RTAX_INITRWND attribute: %m"); |
323d9329 SS |
763 | } |
764 | ||
67c193bf | 765 | if (route->quickack >= 0) { |
09f5dfad SS |
766 | r = sd_netlink_message_append_u32(req, RTAX_QUICKACK, route->quickack); |
767 | if (r < 0) | |
7750b796 | 768 | return log_link_error_errno(link, r, "Could not append RTAX_QUICKACK attribute: %m"); |
09f5dfad SS |
769 | } |
770 | ||
633c7258 SS |
771 | if (route->fast_open_no_cookie >= 0) { |
772 | r = sd_netlink_message_append_u32(req, RTAX_FASTOPEN_NO_COOKIE, route->fast_open_no_cookie); | |
773 | if (r < 0) | |
774 | return log_link_error_errno(link, r, "Could not append RTAX_FASTOPEN_NO_COOKIE attribute: %m"); | |
775 | } | |
776 | ||
d6fceaf1 SS |
777 | r = sd_netlink_message_close_container(req); |
778 | if (r < 0) | |
7750b796 | 779 | return log_link_error_errno(link, r, "Could not append RTA_METRICS attribute: %m"); |
d6fceaf1 | 780 | |
6ff5cc6b YW |
781 | r = append_nexthops(route, req); |
782 | if (r < 0) | |
783 | return log_link_error_errno(link, r, "Could not append RTA_MULTIPATH attribute: %m"); | |
784 | ||
302a796f YW |
785 | r = netlink_call_async(link->manager->rtnl, NULL, req, callback, |
786 | link_netlink_destroy_callback, link); | |
f647962d | 787 | if (r < 0) |
7750b796 | 788 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
f579559b | 789 | |
563c69c6 TG |
790 | link_ref(link); |
791 | ||
f1368755 | 792 | r = route_add(link, route, &route); |
1c8e710c | 793 | if (r < 0) |
7750b796 | 794 | return log_link_error_errno(link, r, "Could not add route: %m"); |
1c8e710c | 795 | |
f833694d | 796 | /* TODO: drop expiration handling once it can be pushed into the kernel */ |
f02ba163 | 797 | if (route->lifetime != USEC_INFINITY && !kernel_route_expiration_supported()) { |
f833694d TG |
798 | r = sd_event_add_time(link->manager->event, &expire, clock_boottime_or_monotonic(), |
799 | route->lifetime, 0, route_expire_handler, route); | |
800 | if (r < 0) | |
7750b796 | 801 | return log_link_error_errno(link, r, "Could not arm expiration timer: %m"); |
f833694d TG |
802 | } |
803 | ||
804 | sd_event_source_unref(route->expire); | |
1cc6c93a | 805 | route->expire = TAKE_PTR(expire); |
f833694d | 806 | |
80b0e860 YW |
807 | if (ret) |
808 | *ret = route; | |
809 | ||
c4423317 | 810 | return 1; |
f579559b TG |
811 | } |
812 | ||
fa7cd711 | 813 | int network_add_ipv4ll_route(Network *network) { |
fcbf4cb7 | 814 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
fa7cd711 YW |
815 | int r; |
816 | ||
817 | assert(network); | |
818 | ||
819 | if (!network->ipv4ll_route) | |
820 | return 0; | |
821 | ||
822 | /* IPv4LLRoute= is in [Network] section. */ | |
823 | r = route_new_static(network, NULL, 0, &n); | |
824 | if (r < 0) | |
825 | return r; | |
826 | ||
827 | r = in_addr_from_string(AF_INET, "169.254.0.0", &n->dst); | |
828 | if (r < 0) | |
829 | return r; | |
830 | ||
831 | n->family = AF_INET; | |
832 | n->dst_prefixlen = 16; | |
833 | n->scope = RT_SCOPE_LINK; | |
94d6e299 YW |
834 | n->scope_set = true; |
835 | n->table_set = true; | |
fa7cd711 YW |
836 | n->priority = IPV4LL_ROUTE_METRIC; |
837 | n->protocol = RTPROT_STATIC; | |
838 | ||
839 | TAKE_PTR(n); | |
840 | return 0; | |
841 | } | |
842 | ||
5d5003ab YW |
843 | int network_add_default_route_on_device(Network *network) { |
844 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; | |
845 | int r; | |
846 | ||
847 | assert(network); | |
848 | ||
849 | if (!network->default_route_on_device) | |
850 | return 0; | |
851 | ||
852 | /* DefaultRouteOnDevice= is in [Network] section. */ | |
853 | r = route_new_static(network, NULL, 0, &n); | |
854 | if (r < 0) | |
855 | return r; | |
856 | ||
5d5003ab | 857 | n->family = AF_INET; |
c697db75 YW |
858 | n->scope = RT_SCOPE_LINK; |
859 | n->scope_set = true; | |
860 | n->protocol = RTPROT_STATIC; | |
5d5003ab YW |
861 | |
862 | TAKE_PTR(n); | |
863 | return 0; | |
864 | } | |
865 | ||
7a22312d YW |
866 | static const char * const route_type_table[__RTN_MAX] = { |
867 | [RTN_UNICAST] = "unicast", | |
94d6e299 YW |
868 | [RTN_LOCAL] = "local", |
869 | [RTN_BROADCAST] = "broadcast", | |
870 | [RTN_ANYCAST] = "anycast", | |
871 | [RTN_MULTICAST] = "multicast", | |
7a22312d YW |
872 | [RTN_BLACKHOLE] = "blackhole", |
873 | [RTN_UNREACHABLE] = "unreachable", | |
874 | [RTN_PROHIBIT] = "prohibit", | |
875 | [RTN_THROW] = "throw", | |
94d6e299 YW |
876 | [RTN_NAT] = "nat", |
877 | [RTN_XRESOLVE] = "xresolve", | |
7a22312d YW |
878 | }; |
879 | ||
880 | assert_cc(__RTN_MAX <= UCHAR_MAX); | |
881 | DEFINE_STRING_TABLE_LOOKUP(route_type, int); | |
882 | ||
b297e0a7 YW |
883 | static const char * const route_scope_table[] = { |
884 | [RT_SCOPE_UNIVERSE] = "global", | |
885 | [RT_SCOPE_SITE] = "site", | |
886 | [RT_SCOPE_LINK] = "link", | |
887 | [RT_SCOPE_HOST] = "host", | |
888 | [RT_SCOPE_NOWHERE] = "nowhere", | |
889 | }; | |
890 | ||
41b90a1e | 891 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP(route_scope, int); |
b297e0a7 YW |
892 | |
893 | const char *format_route_scope(int scope, char *buf, size_t size) { | |
894 | const char *s; | |
895 | char *p = buf; | |
896 | ||
897 | s = route_scope_to_string(scope); | |
898 | if (s) | |
899 | strpcpy(&p, size, s); | |
900 | else | |
901 | strpcpyf(&p, size, "%d", scope); | |
902 | ||
903 | return buf; | |
904 | } | |
905 | ||
906 | static const char * const route_table_table[] = { | |
907 | [RT_TABLE_DEFAULT] = "default", | |
908 | [RT_TABLE_MAIN] = "main", | |
909 | [RT_TABLE_LOCAL] = "local", | |
910 | }; | |
911 | ||
41b90a1e | 912 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP(route_table, int); |
b297e0a7 YW |
913 | |
914 | const char *format_route_table(int table, char *buf, size_t size) { | |
915 | const char *s; | |
916 | char *p = buf; | |
917 | ||
918 | s = route_table_to_string(table); | |
919 | if (s) | |
920 | strpcpy(&p, size, s); | |
921 | else | |
922 | strpcpyf(&p, size, "%d", table); | |
923 | ||
924 | return buf; | |
925 | } | |
926 | ||
1b64651b YW |
927 | static const char * const route_protocol_table[] = { |
928 | [RTPROT_KERNEL] = "kernel", | |
929 | [RTPROT_BOOT] = "boot", | |
930 | [RTPROT_STATIC] = "static", | |
931 | }; | |
932 | ||
ca420b62 YW |
933 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(route_protocol, int); |
934 | ||
935 | static const char * const route_protocol_full_table[] = { | |
936 | [RTPROT_REDIRECT] = "redirect", | |
937 | [RTPROT_KERNEL] = "kernel", | |
938 | [RTPROT_BOOT] = "boot", | |
939 | [RTPROT_STATIC] = "static", | |
940 | [RTPROT_GATED] = "gated", | |
941 | [RTPROT_RA] = "ra", | |
942 | [RTPROT_MRT] = "mrt", | |
943 | [RTPROT_ZEBRA] = "zebra", | |
944 | [RTPROT_BIRD] = "bird", | |
945 | [RTPROT_DNROUTED] = "dnrouted", | |
946 | [RTPROT_XORP] = "xorp", | |
947 | [RTPROT_NTK] = "ntk", | |
948 | [RTPROT_DHCP] = "dhcp", | |
949 | [RTPROT_MROUTED] = "mrouted", | |
950 | [RTPROT_BABEL] = "babel", | |
951 | [RTPROT_BGP] = "bgp", | |
952 | [RTPROT_ISIS] = "isis", | |
953 | [RTPROT_OSPF] = "ospf", | |
954 | [RTPROT_RIP] = "rip", | |
955 | [RTPROT_EIGRP] = "eigrp", | |
956 | }; | |
957 | ||
958 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(route_protocol_full, int); | |
d3e291fd YW |
959 | |
960 | const char *format_route_protocol(int protocol, char *buf, size_t size) { | |
961 | const char *s; | |
962 | char *p = buf; | |
963 | ||
ca420b62 | 964 | s = route_protocol_full_to_string(protocol); |
d3e291fd YW |
965 | if (s) |
966 | strpcpy(&p, size, s); | |
967 | else | |
968 | strpcpyf(&p, size, "%d", protocol); | |
969 | ||
970 | return buf; | |
971 | } | |
1b64651b | 972 | |
27efb52b YW |
973 | int config_parse_gateway( |
974 | const char *unit, | |
f579559b TG |
975 | const char *filename, |
976 | unsigned line, | |
977 | const char *section, | |
71a61510 | 978 | unsigned section_line, |
f579559b TG |
979 | const char *lvalue, |
980 | int ltype, | |
981 | const char *rvalue, | |
982 | void *data, | |
983 | void *userdata) { | |
44e7b949 | 984 | |
6ae115c1 | 985 | Network *network = userdata; |
fcbf4cb7 | 986 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7934dede | 987 | int r; |
f579559b TG |
988 | |
989 | assert(filename); | |
6ae115c1 | 990 | assert(section); |
f579559b TG |
991 | assert(lvalue); |
992 | assert(rvalue); | |
993 | assert(data); | |
994 | ||
92fe133a TG |
995 | if (streq(section, "Network")) { |
996 | /* we are not in an Route section, so treat | |
997 | * this as the special '0' section */ | |
f4859fc7 | 998 | r = route_new_static(network, NULL, 0, &n); |
d96edb2c YW |
999 | if (r == -ENOMEM) |
1000 | return log_oom(); | |
1001 | if (r < 0) { | |
1002 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1003 | "Failed to allocate route, ignoring assignment: %m"); | |
1004 | return 0; | |
1005 | } | |
1985c54f | 1006 | } else { |
f4859fc7 | 1007 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1008 | if (r == -ENOMEM) |
1009 | return log_oom(); | |
1010 | if (r < 0) { | |
1011 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1012 | "Failed to allocate route, ignoring assignment: %m"); | |
1013 | return 0; | |
1014 | } | |
1985c54f | 1015 | |
427928ca | 1016 | if (streq(rvalue, "_dhcp")) { |
1985c54f YW |
1017 | n->gateway_from_dhcp = true; |
1018 | TAKE_PTR(n); | |
1019 | return 0; | |
1020 | } | |
1021 | } | |
f579559b | 1022 | |
01d4e732 YW |
1023 | if (n->family == AF_UNSPEC) |
1024 | r = in_addr_from_string_auto(rvalue, &n->family, &n->gw); | |
1025 | else | |
1026 | r = in_addr_from_string(n->family, rvalue, &n->gw); | |
f579559b | 1027 | if (r < 0) { |
d96edb2c | 1028 | log_syntax(unit, LOG_WARNING, filename, line, r, |
01d4e732 | 1029 | "Invalid %s='%s', ignoring assignment: %m", lvalue, rvalue); |
f579559b TG |
1030 | return 0; |
1031 | } | |
1032 | ||
aff44301 | 1033 | TAKE_PTR(n); |
f579559b TG |
1034 | return 0; |
1035 | } | |
6ae115c1 | 1036 | |
27efb52b YW |
1037 | int config_parse_preferred_src( |
1038 | const char *unit, | |
0d07e595 JK |
1039 | const char *filename, |
1040 | unsigned line, | |
1041 | const char *section, | |
1042 | unsigned section_line, | |
1043 | const char *lvalue, | |
1044 | int ltype, | |
1045 | const char *rvalue, | |
1046 | void *data, | |
1047 | void *userdata) { | |
1048 | ||
1049 | Network *network = userdata; | |
fcbf4cb7 | 1050 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7934dede | 1051 | int r; |
0d07e595 JK |
1052 | |
1053 | assert(filename); | |
1054 | assert(section); | |
1055 | assert(lvalue); | |
1056 | assert(rvalue); | |
1057 | assert(data); | |
1058 | ||
f4859fc7 | 1059 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1060 | if (r == -ENOMEM) |
1061 | return log_oom(); | |
1062 | if (r < 0) { | |
1063 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1064 | "Failed to allocate route, ignoring assignment: %m"); | |
1065 | return 0; | |
1066 | } | |
0d07e595 | 1067 | |
01d4e732 YW |
1068 | if (n->family == AF_UNSPEC) |
1069 | r = in_addr_from_string_auto(rvalue, &n->family, &n->prefsrc); | |
1070 | else | |
1071 | r = in_addr_from_string(n->family, rvalue, &n->prefsrc); | |
0d07e595 | 1072 | if (r < 0) { |
d96edb2c | 1073 | log_syntax(unit, LOG_WARNING, filename, line, EINVAL, |
01d4e732 | 1074 | "Invalid %s='%s', ignoring assignment: %m", lvalue, rvalue); |
0d07e595 JK |
1075 | return 0; |
1076 | } | |
1077 | ||
aff44301 | 1078 | TAKE_PTR(n); |
0d07e595 JK |
1079 | return 0; |
1080 | } | |
1081 | ||
27efb52b YW |
1082 | int config_parse_destination( |
1083 | const char *unit, | |
6ae115c1 TG |
1084 | const char *filename, |
1085 | unsigned line, | |
1086 | const char *section, | |
1087 | unsigned section_line, | |
1088 | const char *lvalue, | |
1089 | int ltype, | |
1090 | const char *rvalue, | |
1091 | void *data, | |
1092 | void *userdata) { | |
44e7b949 | 1093 | |
6ae115c1 | 1094 | Network *network = userdata; |
fcbf4cb7 | 1095 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7934dede YW |
1096 | union in_addr_union *buffer; |
1097 | unsigned char *prefixlen; | |
ca3bad65 | 1098 | int r; |
6ae115c1 TG |
1099 | |
1100 | assert(filename); | |
1101 | assert(section); | |
1102 | assert(lvalue); | |
1103 | assert(rvalue); | |
1104 | assert(data); | |
1105 | ||
f4859fc7 | 1106 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1107 | if (r == -ENOMEM) |
1108 | return log_oom(); | |
1109 | if (r < 0) { | |
1110 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1111 | "Failed to allocate route, ignoring assignment: %m"); | |
1112 | return 0; | |
1113 | } | |
6ae115c1 | 1114 | |
9e7e4408 | 1115 | if (streq(lvalue, "Destination")) { |
7934dede YW |
1116 | buffer = &n->dst; |
1117 | prefixlen = &n->dst_prefixlen; | |
9e7e4408 | 1118 | } else if (streq(lvalue, "Source")) { |
7934dede YW |
1119 | buffer = &n->src; |
1120 | prefixlen = &n->src_prefixlen; | |
9e7e4408 TG |
1121 | } else |
1122 | assert_not_reached(lvalue); | |
1123 | ||
01d4e732 YW |
1124 | if (n->family == AF_UNSPEC) |
1125 | r = in_addr_prefix_from_string_auto(rvalue, &n->family, buffer, prefixlen); | |
1126 | else | |
1127 | r = in_addr_prefix_from_string(rvalue, n->family, buffer, prefixlen); | |
7934dede | 1128 | if (r < 0) { |
d96edb2c | 1129 | log_syntax(unit, LOG_WARNING, filename, line, EINVAL, |
01d4e732 | 1130 | "Invalid %s='%s', ignoring assignment: %m", lvalue, rvalue); |
7934dede YW |
1131 | return 0; |
1132 | } | |
1133 | ||
aff44301 | 1134 | TAKE_PTR(n); |
6ae115c1 TG |
1135 | return 0; |
1136 | } | |
5d8e593d | 1137 | |
27efb52b YW |
1138 | int config_parse_route_priority( |
1139 | const char *unit, | |
1140 | const char *filename, | |
1141 | unsigned line, | |
1142 | const char *section, | |
1143 | unsigned section_line, | |
1144 | const char *lvalue, | |
1145 | int ltype, | |
1146 | const char *rvalue, | |
1147 | void *data, | |
1148 | void *userdata) { | |
1149 | ||
5d8e593d | 1150 | Network *network = userdata; |
fcbf4cb7 | 1151 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
5d8e593d SS |
1152 | int r; |
1153 | ||
1154 | assert(filename); | |
1155 | assert(section); | |
1156 | assert(lvalue); | |
1157 | assert(rvalue); | |
1158 | assert(data); | |
1159 | ||
f4859fc7 | 1160 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1161 | if (r == -ENOMEM) |
1162 | return log_oom(); | |
1163 | if (r < 0) { | |
1164 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1165 | "Failed to allocate route, ignoring assignment: %m"); | |
1166 | return 0; | |
1167 | } | |
5d8e593d | 1168 | |
aff44301 | 1169 | r = safe_atou32(rvalue, &n->priority); |
1c4b1179 | 1170 | if (r < 0) { |
d96edb2c | 1171 | log_syntax(unit, LOG_WARNING, filename, line, r, |
1c4b1179 SS |
1172 | "Could not parse route priority \"%s\", ignoring assignment: %m", rvalue); |
1173 | return 0; | |
1174 | } | |
5d8e593d | 1175 | |
aff44301 | 1176 | TAKE_PTR(n); |
5d8e593d SS |
1177 | return 0; |
1178 | } | |
769b56a3 | 1179 | |
27efb52b YW |
1180 | int config_parse_route_scope( |
1181 | const char *unit, | |
1182 | const char *filename, | |
1183 | unsigned line, | |
1184 | const char *section, | |
1185 | unsigned section_line, | |
1186 | const char *lvalue, | |
1187 | int ltype, | |
1188 | const char *rvalue, | |
1189 | void *data, | |
1190 | void *userdata) { | |
1191 | ||
769b56a3 | 1192 | Network *network = userdata; |
fcbf4cb7 | 1193 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
769b56a3 TG |
1194 | int r; |
1195 | ||
1196 | assert(filename); | |
1197 | assert(section); | |
1198 | assert(lvalue); | |
1199 | assert(rvalue); | |
1200 | assert(data); | |
1201 | ||
f4859fc7 | 1202 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1203 | if (r == -ENOMEM) |
1204 | return log_oom(); | |
1205 | if (r < 0) { | |
1206 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1207 | "Failed to allocate route, ignoring assignment: %m"); | |
1208 | return 0; | |
1209 | } | |
769b56a3 | 1210 | |
41b90a1e YW |
1211 | r = route_scope_from_string(rvalue); |
1212 | if (r < 0) { | |
d96edb2c | 1213 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown route scope: %s", rvalue); |
769b56a3 TG |
1214 | return 0; |
1215 | } | |
1216 | ||
41b90a1e | 1217 | n->scope = r; |
94d6e299 | 1218 | n->scope_set = true; |
aff44301 | 1219 | TAKE_PTR(n); |
769b56a3 TG |
1220 | return 0; |
1221 | } | |
c953b24c | 1222 | |
27efb52b YW |
1223 | int config_parse_route_table( |
1224 | const char *unit, | |
1225 | const char *filename, | |
1226 | unsigned line, | |
1227 | const char *section, | |
1228 | unsigned section_line, | |
1229 | const char *lvalue, | |
1230 | int ltype, | |
1231 | const char *rvalue, | |
1232 | void *data, | |
1233 | void *userdata) { | |
1234 | ||
fcbf4cb7 | 1235 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
c953b24c | 1236 | Network *network = userdata; |
c953b24c SS |
1237 | int r; |
1238 | ||
1239 | assert(filename); | |
1240 | assert(section); | |
1241 | assert(lvalue); | |
1242 | assert(rvalue); | |
1243 | assert(data); | |
1244 | ||
f4859fc7 | 1245 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1246 | if (r == -ENOMEM) |
1247 | return log_oom(); | |
1248 | if (r < 0) { | |
1249 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1250 | "Failed to allocate route, ignoring assignment: %m"); | |
1251 | return 0; | |
1252 | } | |
c953b24c | 1253 | |
41b90a1e YW |
1254 | r = route_table_from_string(rvalue); |
1255 | if (r >= 0) | |
1256 | n->table = r; | |
1257 | else { | |
1258 | r = safe_atou32(rvalue, &n->table); | |
1259 | if (r < 0) { | |
d96edb2c | 1260 | log_syntax(unit, LOG_WARNING, filename, line, r, |
41b90a1e YW |
1261 | "Could not parse route table number \"%s\", ignoring assignment: %m", rvalue); |
1262 | return 0; | |
1263 | } | |
c953b24c SS |
1264 | } |
1265 | ||
94d6e299 | 1266 | n->table_set = true; |
aff44301 | 1267 | TAKE_PTR(n); |
c953b24c SS |
1268 | return 0; |
1269 | } | |
28959f7d | 1270 | |
d96edb2c | 1271 | int config_parse_route_boolean( |
27efb52b YW |
1272 | const char *unit, |
1273 | const char *filename, | |
1274 | unsigned line, | |
1275 | const char *section, | |
1276 | unsigned section_line, | |
1277 | const char *lvalue, | |
1278 | int ltype, | |
1279 | const char *rvalue, | |
1280 | void *data, | |
1281 | void *userdata) { | |
1282 | ||
28959f7d | 1283 | Network *network = userdata; |
fcbf4cb7 | 1284 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
28959f7d SS |
1285 | int r; |
1286 | ||
1287 | assert(filename); | |
1288 | assert(section); | |
1289 | assert(lvalue); | |
1290 | assert(rvalue); | |
1291 | assert(data); | |
1292 | ||
1293 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
1294 | if (r == -ENOMEM) |
1295 | return log_oom(); | |
1296 | if (r < 0) { | |
1297 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1298 | "Failed to allocate route, ignoring assignment: %m"); | |
1299 | return 0; | |
1300 | } | |
28959f7d SS |
1301 | |
1302 | r = parse_boolean(rvalue); | |
1303 | if (r < 0) { | |
d96edb2c | 1304 | log_syntax(unit, LOG_WARNING, filename, line, r, |
9cb8c559 | 1305 | "Could not parse %s=\"%s\", ignoring assignment: %m", lvalue, rvalue); |
28959f7d SS |
1306 | return 0; |
1307 | } | |
1308 | ||
d96edb2c YW |
1309 | if (STR_IN_SET(lvalue, "GatewayOnLink", "GatewayOnlink")) |
1310 | n->gateway_onlink = r; | |
1311 | else if (streq(lvalue, "QuickAck")) | |
1312 | n->quickack = r; | |
1313 | else if (streq(lvalue, "FastOpenNoCookie")) | |
1314 | n->fast_open_no_cookie = r; | |
1315 | else if (streq(lvalue, "TTLPropagate")) | |
1316 | n->ttl_propagate = r; | |
1317 | else | |
1318 | assert_not_reached("Invalid lvalue"); | |
54901fd2 | 1319 | |
aff44301 | 1320 | TAKE_PTR(n); |
b5bf6f64 SS |
1321 | return 0; |
1322 | } | |
1323 | ||
27efb52b YW |
1324 | int config_parse_ipv6_route_preference( |
1325 | const char *unit, | |
1326 | const char *filename, | |
1327 | unsigned line, | |
1328 | const char *section, | |
1329 | unsigned section_line, | |
1330 | const char *lvalue, | |
1331 | int ltype, | |
1332 | const char *rvalue, | |
1333 | void *data, | |
1334 | void *userdata) { | |
1335 | ||
b5bf6f64 | 1336 | Network *network = userdata; |
fcbf4cb7 | 1337 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
b5bf6f64 SS |
1338 | int r; |
1339 | ||
4c7bd9cf | 1340 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1341 | if (r == -ENOMEM) |
1342 | return log_oom(); | |
1343 | if (r < 0) { | |
1344 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1345 | "Failed to allocate route, ignoring assignment: %m"); | |
1346 | return 0; | |
1347 | } | |
4c7bd9cf | 1348 | |
b5bf6f64 SS |
1349 | if (streq(rvalue, "low")) |
1350 | n->pref = ICMPV6_ROUTER_PREF_LOW; | |
1351 | else if (streq(rvalue, "medium")) | |
1352 | n->pref = ICMPV6_ROUTER_PREF_MEDIUM; | |
1353 | else if (streq(rvalue, "high")) | |
1354 | n->pref = ICMPV6_ROUTER_PREF_HIGH; | |
1355 | else { | |
d96edb2c | 1356 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown route preference: %s", rvalue); |
b5bf6f64 SS |
1357 | return 0; |
1358 | } | |
28959f7d | 1359 | |
aff44301 | 1360 | TAKE_PTR(n); |
28959f7d SS |
1361 | return 0; |
1362 | } | |
c83ecc04 | 1363 | |
27efb52b YW |
1364 | int config_parse_route_protocol( |
1365 | const char *unit, | |
1366 | const char *filename, | |
1367 | unsigned line, | |
1368 | const char *section, | |
1369 | unsigned section_line, | |
1370 | const char *lvalue, | |
1371 | int ltype, | |
1372 | const char *rvalue, | |
1373 | void *data, | |
1374 | void *userdata) { | |
1375 | ||
c83ecc04 | 1376 | Network *network = userdata; |
fcbf4cb7 | 1377 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
c83ecc04 SS |
1378 | int r; |
1379 | ||
1380 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
1381 | if (r == -ENOMEM) |
1382 | return log_oom(); | |
1383 | if (r < 0) { | |
1384 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1385 | "Failed to allocate route, ignoring assignment: %m"); | |
1386 | return 0; | |
1387 | } | |
c83ecc04 | 1388 | |
1b64651b YW |
1389 | r = route_protocol_from_string(rvalue); |
1390 | if (r >= 0) | |
1391 | n->protocol = r; | |
c83ecc04 SS |
1392 | else { |
1393 | r = safe_atou8(rvalue , &n->protocol); | |
1394 | if (r < 0) { | |
d96edb2c | 1395 | log_syntax(unit, LOG_WARNING, filename, line, r, |
f205a92a | 1396 | "Could not parse route protocol \"%s\", ignoring assignment: %m", rvalue); |
c83ecc04 SS |
1397 | return 0; |
1398 | } | |
1399 | } | |
1400 | ||
aff44301 | 1401 | TAKE_PTR(n); |
c83ecc04 SS |
1402 | return 0; |
1403 | } | |
983226f3 | 1404 | |
27efb52b YW |
1405 | int config_parse_route_type( |
1406 | const char *unit, | |
1407 | const char *filename, | |
1408 | unsigned line, | |
1409 | const char *section, | |
1410 | unsigned section_line, | |
1411 | const char *lvalue, | |
1412 | int ltype, | |
1413 | const char *rvalue, | |
1414 | void *data, | |
1415 | void *userdata) { | |
1416 | ||
983226f3 | 1417 | Network *network = userdata; |
fcbf4cb7 | 1418 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7a22312d | 1419 | int t, r; |
983226f3 SS |
1420 | |
1421 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
1422 | if (r == -ENOMEM) |
1423 | return log_oom(); | |
1424 | if (r < 0) { | |
1425 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1426 | "Failed to allocate route, ignoring assignment: %m"); | |
1427 | return 0; | |
1428 | } | |
983226f3 | 1429 | |
7a22312d YW |
1430 | t = route_type_from_string(rvalue); |
1431 | if (t < 0) { | |
d96edb2c | 1432 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
f205a92a | 1433 | "Could not parse route type \"%s\", ignoring assignment: %m", rvalue); |
983226f3 SS |
1434 | return 0; |
1435 | } | |
1436 | ||
7a22312d YW |
1437 | n->type = (unsigned char) t; |
1438 | ||
aff44301 | 1439 | TAKE_PTR(n); |
983226f3 SS |
1440 | return 0; |
1441 | } | |
323d9329 | 1442 | |
27efb52b YW |
1443 | int config_parse_tcp_window( |
1444 | const char *unit, | |
1445 | const char *filename, | |
1446 | unsigned line, | |
1447 | const char *section, | |
1448 | unsigned section_line, | |
1449 | const char *lvalue, | |
1450 | int ltype, | |
1451 | const char *rvalue, | |
1452 | void *data, | |
1453 | void *userdata) { | |
1454 | ||
fcbf4cb7 | 1455 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
6b21ad33 SS |
1456 | Network *network = userdata; |
1457 | uint64_t k; | |
323d9329 SS |
1458 | int r; |
1459 | ||
1460 | assert(filename); | |
1461 | assert(section); | |
1462 | assert(lvalue); | |
1463 | assert(rvalue); | |
1464 | assert(data); | |
1465 | ||
1466 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
1467 | if (r == -ENOMEM) |
1468 | return log_oom(); | |
1469 | if (r < 0) { | |
1470 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1471 | "Failed to allocate route, ignoring assignment: %m"); | |
1472 | return 0; | |
1473 | } | |
323d9329 | 1474 | |
6b21ad33 | 1475 | r = parse_size(rvalue, 1024, &k); |
f205a92a | 1476 | if (r < 0) { |
d96edb2c | 1477 | log_syntax(unit, LOG_WARNING, filename, line, r, |
f205a92a YW |
1478 | "Could not parse TCP %s \"%s\", ignoring assignment: %m", lvalue, rvalue); |
1479 | return 0; | |
1480 | } | |
1481 | if (k > UINT32_MAX) { | |
d96edb2c | 1482 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
f205a92a | 1483 | "Specified TCP %s \"%s\" is too large, ignoring assignment: %m", lvalue, rvalue); |
323d9329 SS |
1484 | return 0; |
1485 | } | |
1486 | ||
1487 | if (streq(lvalue, "InitialCongestionWindow")) | |
1488 | n->initcwnd = k; | |
1489 | else if (streq(lvalue, "InitialAdvertisedReceiveWindow")) | |
1490 | n->initrwnd = k; | |
f205a92a YW |
1491 | else |
1492 | assert_not_reached("Invalid TCP window type."); | |
323d9329 | 1493 | |
aff44301 | 1494 | TAKE_PTR(n); |
323d9329 SS |
1495 | return 0; |
1496 | } | |
09f5dfad | 1497 | |
cea79e66 SS |
1498 | int config_parse_route_mtu( |
1499 | const char *unit, | |
1500 | const char *filename, | |
1501 | unsigned line, | |
1502 | const char *section, | |
1503 | unsigned section_line, | |
1504 | const char *lvalue, | |
1505 | int ltype, | |
1506 | const char *rvalue, | |
1507 | void *data, | |
1508 | void *userdata) { | |
1509 | ||
1510 | Network *network = userdata; | |
fcbf4cb7 | 1511 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
cea79e66 SS |
1512 | int r; |
1513 | ||
1514 | assert(filename); | |
1515 | assert(section); | |
1516 | assert(lvalue); | |
1517 | assert(rvalue); | |
1518 | assert(data); | |
1519 | ||
1520 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
1521 | if (r == -ENOMEM) |
1522 | return log_oom(); | |
1523 | if (r < 0) { | |
1524 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1525 | "Failed to allocate route, ignoring assignment: %m"); | |
1526 | return 0; | |
1527 | } | |
cea79e66 SS |
1528 | |
1529 | r = config_parse_mtu(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &n->mtu, userdata); | |
1530 | if (r < 0) | |
1531 | return r; | |
1532 | ||
aff44301 | 1533 | TAKE_PTR(n); |
cea79e66 SS |
1534 | return 0; |
1535 | } | |
fcbf4cb7 | 1536 | |
6ff5cc6b YW |
1537 | int config_parse_multipath_route( |
1538 | const char *unit, | |
1539 | const char *filename, | |
1540 | unsigned line, | |
1541 | const char *section, | |
1542 | unsigned section_line, | |
1543 | const char *lvalue, | |
1544 | int ltype, | |
1545 | const char *rvalue, | |
1546 | void *data, | |
1547 | void *userdata) { | |
1548 | ||
1549 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; | |
1550 | _cleanup_free_ char *word = NULL, *buf = NULL; | |
1551 | _cleanup_free_ MultipathRoute *m = NULL; | |
1552 | Network *network = userdata; | |
1553 | const char *p, *ip, *dev; | |
1554 | union in_addr_union a; | |
1555 | int family, r; | |
1556 | ||
1557 | assert(filename); | |
1558 | assert(section); | |
1559 | assert(lvalue); | |
1560 | assert(rvalue); | |
1561 | assert(data); | |
1562 | ||
1563 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
1564 | if (r == -ENOMEM) |
1565 | return log_oom(); | |
1566 | if (r < 0) { | |
1567 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1568 | "Failed to allocate route, ignoring assignment: %m"); | |
1569 | return 0; | |
1570 | } | |
6ff5cc6b YW |
1571 | |
1572 | if (isempty(rvalue)) { | |
1573 | n->multipath_routes = ordered_set_free_free(n->multipath_routes); | |
1574 | return 0; | |
1575 | } | |
1576 | ||
1577 | m = new0(MultipathRoute, 1); | |
1578 | if (!m) | |
1579 | return log_oom(); | |
1580 | ||
1581 | p = rvalue; | |
1582 | r = extract_first_word(&p, &word, NULL, 0); | |
1583 | if (r == -ENOMEM) | |
1584 | return log_oom(); | |
1585 | if (r <= 0) { | |
d96edb2c | 1586 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
1587 | "Invalid multipath route option, ignoring assignment: %s", rvalue); |
1588 | return 0; | |
1589 | } | |
1590 | ||
1591 | dev = strchr(word, '@'); | |
1592 | if (dev) { | |
1593 | buf = strndup(word, dev - word); | |
1594 | if (!buf) | |
1595 | return log_oom(); | |
1596 | ip = buf; | |
1597 | dev++; | |
1598 | } else | |
1599 | ip = word; | |
1600 | ||
1601 | r = in_addr_from_string_auto(ip, &family, &a); | |
1602 | if (r < 0) { | |
d96edb2c | 1603 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
1604 | "Invalid multipath route gateway '%s', ignoring assignment: %m", rvalue); |
1605 | return 0; | |
1606 | } | |
1607 | m->gateway.address = a; | |
1608 | m->gateway.family = family; | |
1609 | ||
1610 | if (dev) { | |
d308bb99 | 1611 | r = resolve_interface(NULL, dev); |
6ff5cc6b | 1612 | if (r < 0) { |
d96edb2c | 1613 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
1614 | "Invalid interface name or index, ignoring assignment: %s", dev); |
1615 | return 0; | |
1616 | } | |
597da51b | 1617 | m->ifindex = r; |
6ff5cc6b YW |
1618 | } |
1619 | ||
1620 | if (!isempty(p)) { | |
1621 | r = safe_atou32(p, &m->weight); | |
1622 | if (r < 0) { | |
d96edb2c | 1623 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
1624 | "Invalid multipath route weight, ignoring assignment: %s", p); |
1625 | return 0; | |
1626 | } | |
1627 | if (m->weight == 0 || m->weight > 256) { | |
d96edb2c | 1628 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
6ff5cc6b YW |
1629 | "Invalid multipath route weight, ignoring assignment: %s", p); |
1630 | return 0; | |
1631 | } | |
1632 | } | |
1633 | ||
1634 | r = ordered_set_ensure_allocated(&n->multipath_routes, NULL); | |
1635 | if (r < 0) | |
1636 | return log_oom(); | |
1637 | ||
1638 | r = ordered_set_put(n->multipath_routes, m); | |
1639 | if (r < 0) { | |
d96edb2c | 1640 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
1641 | "Failed to store multipath route, ignoring assignment: %m"); |
1642 | return 0; | |
1643 | } | |
1644 | ||
1645 | TAKE_PTR(m); | |
1646 | TAKE_PTR(n); | |
1647 | return 0; | |
1648 | } | |
1649 | ||
fcbf4cb7 YW |
1650 | int route_section_verify(Route *route, Network *network) { |
1651 | if (section_is_invalid(route->section)) | |
1652 | return -EINVAL; | |
1653 | ||
1654 | if (route->family == AF_UNSPEC) { | |
1655 | assert(route->section); | |
1656 | ||
1657 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
1658 | "%s: Route section without Gateway=, Destination=, Source=, " | |
1659 | "or PreferredSource= field configured. " | |
1660 | "Ignoring [Route] section from line %u.", | |
1661 | route->section->filename, route->section->line); | |
1662 | } | |
1663 | ||
c0d48bc5 YW |
1664 | if (!route->table_set && network->vrf) { |
1665 | route->table = VRF(network->vrf)->table; | |
1666 | route->table_set = true; | |
1667 | } | |
1668 | ||
f5c38922 YW |
1669 | if (!route->table_set && IN_SET(route->type, RTN_LOCAL, RTN_BROADCAST, RTN_ANYCAST, RTN_NAT)) |
1670 | route->table = RT_TABLE_LOCAL; | |
1671 | ||
1672 | if (!route->scope_set && route->family != AF_INET6) { | |
1673 | if (IN_SET(route->type, RTN_LOCAL, RTN_NAT)) | |
1674 | route->scope = RT_SCOPE_HOST; | |
1675 | else if (IN_SET(route->type, RTN_BROADCAST, RTN_ANYCAST, RTN_MULTICAST)) | |
1676 | route->scope = RT_SCOPE_LINK; | |
94d6e299 YW |
1677 | } |
1678 | ||
fcbf4cb7 YW |
1679 | if (network->n_static_addresses == 0 && |
1680 | in_addr_is_null(route->family, &route->gw) == 0 && | |
1681 | route->gateway_onlink < 0) { | |
1682 | log_warning("%s: Gateway= without static address configured. " | |
1683 | "Enabling GatewayOnLink= option.", | |
1684 | network->filename); | |
1685 | route->gateway_onlink = true; | |
1686 | } | |
1687 | ||
1688 | return 0; | |
1689 | } |