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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
f579559b | 2 | |
b5bf6f64 | 3 | #include <linux/icmpv6.h> |
8973df5c | 4 | #include <linux/ipv6_route.h> |
b5bf6f64 | 5 | |
b5efdb8a | 6 | #include "alloc-util.h" |
fc2f9534 | 7 | #include "netlink-util.h" |
ca5ad760 | 8 | #include "networkd-ipv4ll.h" |
23f53b99 | 9 | #include "networkd-manager.h" |
e2263711 | 10 | #include "networkd-network.h" |
141318f7 | 11 | #include "networkd-nexthop.h" |
6bedfcbb | 12 | #include "networkd-route.h" |
141318f7 | 13 | #include "networkd-routing-policy-rule.h" |
6bedfcbb | 14 | #include "parse-util.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 | ||
423c249c | 25 | static uint32_t link_get_vrf_table(const Link *link) { |
ac49887e YW |
26 | return link->network->vrf ? VRF(link->network->vrf)->table : RT_TABLE_MAIN; |
27 | } | |
28 | ||
423c249c | 29 | uint32_t link_get_dhcp_route_table(const Link *link) { |
ac49887e YW |
30 | /* When the interface is part of an VRF use the VRFs routing table, unless |
31 | * another table is explicitly specified. */ | |
32 | if (link->network->dhcp_route_table_set) | |
33 | return link->network->dhcp_route_table; | |
34 | return link_get_vrf_table(link); | |
35 | } | |
36 | ||
423c249c | 37 | uint32_t link_get_ipv6_accept_ra_route_table(const Link *link) { |
ac49887e YW |
38 | if (link->network->ipv6_accept_ra_route_table_set) |
39 | return link->network->ipv6_accept_ra_route_table; | |
40 | return link_get_vrf_table(link); | |
41 | } | |
42 | ||
74154c2e YW |
43 | static const char * const route_type_table[__RTN_MAX] = { |
44 | [RTN_UNICAST] = "unicast", | |
45 | [RTN_LOCAL] = "local", | |
46 | [RTN_BROADCAST] = "broadcast", | |
47 | [RTN_ANYCAST] = "anycast", | |
48 | [RTN_MULTICAST] = "multicast", | |
49 | [RTN_BLACKHOLE] = "blackhole", | |
50 | [RTN_UNREACHABLE] = "unreachable", | |
51 | [RTN_PROHIBIT] = "prohibit", | |
52 | [RTN_THROW] = "throw", | |
53 | [RTN_NAT] = "nat", | |
54 | [RTN_XRESOLVE] = "xresolve", | |
55 | }; | |
56 | ||
57 | assert_cc(__RTN_MAX <= UCHAR_MAX); | |
58 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP(route_type, int); | |
59 | ||
60 | static const char * const route_scope_table[] = { | |
61 | [RT_SCOPE_UNIVERSE] = "global", | |
62 | [RT_SCOPE_SITE] = "site", | |
63 | [RT_SCOPE_LINK] = "link", | |
64 | [RT_SCOPE_HOST] = "host", | |
65 | [RT_SCOPE_NOWHERE] = "nowhere", | |
66 | }; | |
67 | ||
e4ffe103 YW |
68 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(route_scope, int); |
69 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING_FALLBACK(route_scope, int, UINT8_MAX); | |
74154c2e YW |
70 | |
71 | static const char * const route_table_table[] = { | |
72 | [RT_TABLE_DEFAULT] = "default", | |
73 | [RT_TABLE_MAIN] = "main", | |
74 | [RT_TABLE_LOCAL] = "local", | |
75 | }; | |
76 | ||
552b90a2 | 77 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP(route_table, int); |
74154c2e | 78 | |
552b90a2 YW |
79 | int manager_get_route_table_from_string(const Manager *m, const char *s, uint32_t *ret) { |
80 | uint32_t t; | |
81 | int r; | |
82 | ||
83 | assert(m); | |
84 | assert(s); | |
85 | assert(ret); | |
86 | ||
87 | r = route_table_from_string(s); | |
88 | if (r >= 0) { | |
89 | *ret = (uint32_t) r; | |
90 | return 0; | |
91 | } | |
92 | ||
93 | t = PTR_TO_UINT32(hashmap_get(m->route_table_numbers_by_name, s)); | |
94 | if (t != 0) { | |
95 | *ret = t; | |
96 | return 0; | |
97 | } | |
98 | ||
99 | r = safe_atou32(s, &t); | |
100 | if (r < 0) | |
101 | return r; | |
102 | ||
103 | if (t == 0) | |
104 | return -ERANGE; | |
105 | ||
106 | *ret = t; | |
107 | return 0; | |
108 | } | |
109 | ||
110 | int manager_get_route_table_to_string(const Manager *m, uint32_t table, char **ret) { | |
111 | _cleanup_free_ char *str = NULL; | |
74154c2e | 112 | const char *s; |
552b90a2 YW |
113 | |
114 | assert(m); | |
115 | assert(ret); | |
116 | ||
117 | if (table == 0) | |
118 | return -EINVAL; | |
74154c2e YW |
119 | |
120 | s = route_table_to_string(table); | |
552b90a2 YW |
121 | if (!s) |
122 | s = hashmap_get(m->route_table_names_by_number, UINT32_TO_PTR(table)); | |
74154c2e | 123 | |
552b90a2 YW |
124 | if (s) { |
125 | /* Currently, this is only used in debugging logs. To not confuse any bug | |
126 | * reports, let's include the table number. */ | |
127 | if (asprintf(&str, "%s(%" PRIu32 ")", s, table) < 0) | |
128 | return -ENOMEM; | |
129 | ||
130 | *ret = TAKE_PTR(str); | |
131 | return 0; | |
132 | } | |
133 | ||
134 | if (asprintf(&str, "%" PRIu32, table) < 0) | |
135 | return -ENOMEM; | |
136 | ||
137 | *ret = TAKE_PTR(str); | |
138 | return 0; | |
74154c2e YW |
139 | } |
140 | ||
141 | static const char * const route_protocol_table[] = { | |
142 | [RTPROT_KERNEL] = "kernel", | |
143 | [RTPROT_BOOT] = "boot", | |
144 | [RTPROT_STATIC] = "static", | |
145 | }; | |
146 | ||
e4ffe103 | 147 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING_FALLBACK(route_protocol, int, UINT8_MAX); |
74154c2e YW |
148 | |
149 | static const char * const route_protocol_full_table[] = { | |
150 | [RTPROT_REDIRECT] = "redirect", | |
151 | [RTPROT_KERNEL] = "kernel", | |
152 | [RTPROT_BOOT] = "boot", | |
153 | [RTPROT_STATIC] = "static", | |
154 | [RTPROT_GATED] = "gated", | |
155 | [RTPROT_RA] = "ra", | |
156 | [RTPROT_MRT] = "mrt", | |
157 | [RTPROT_ZEBRA] = "zebra", | |
158 | [RTPROT_BIRD] = "bird", | |
159 | [RTPROT_DNROUTED] = "dnrouted", | |
160 | [RTPROT_XORP] = "xorp", | |
161 | [RTPROT_NTK] = "ntk", | |
162 | [RTPROT_DHCP] = "dhcp", | |
163 | [RTPROT_MROUTED] = "mrouted", | |
164 | [RTPROT_BABEL] = "babel", | |
165 | [RTPROT_BGP] = "bgp", | |
166 | [RTPROT_ISIS] = "isis", | |
167 | [RTPROT_OSPF] = "ospf", | |
168 | [RTPROT_RIP] = "rip", | |
169 | [RTPROT_EIGRP] = "eigrp", | |
170 | }; | |
171 | ||
e4ffe103 | 172 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING_FALLBACK(route_protocol_full, int, UINT8_MAX); |
74154c2e | 173 | |
47d2d30d ZJS |
174 | static unsigned routes_max(void) { |
175 | static thread_local unsigned cached = 0; | |
47d2d30d ZJS |
176 | _cleanup_free_ char *s4 = NULL, *s6 = NULL; |
177 | unsigned val4 = ROUTES_DEFAULT_MAX_PER_FAMILY, val6 = ROUTES_DEFAULT_MAX_PER_FAMILY; | |
178 | ||
179 | if (cached > 0) | |
180 | return cached; | |
181 | ||
778c8795 YW |
182 | if (sysctl_read_ip_property(AF_INET, NULL, "route/max_size", &s4) >= 0) |
183 | if (safe_atou(s4, &val4) >= 0 && val4 == 2147483647U) | |
47d2d30d ZJS |
184 | /* This is the default "no limit" value in the kernel */ |
185 | val4 = ROUTES_DEFAULT_MAX_PER_FAMILY; | |
47d2d30d | 186 | |
778c8795 | 187 | if (sysctl_read_ip_property(AF_INET6, NULL, "route/max_size", &s6) >= 0) |
47d2d30d | 188 | (void) safe_atou(s6, &val6); |
47d2d30d ZJS |
189 | |
190 | cached = MAX(ROUTES_DEFAULT_MAX_PER_FAMILY, val4) + | |
191 | MAX(ROUTES_DEFAULT_MAX_PER_FAMILY, val6); | |
192 | return cached; | |
193 | } | |
8c34b963 | 194 | |
ed9e361a | 195 | int route_new(Route **ret) { |
8e766630 | 196 | _cleanup_(route_freep) Route *route = NULL; |
f0213e37 | 197 | |
17f9c355 | 198 | route = new(Route, 1); |
f0213e37 TG |
199 | if (!route) |
200 | return -ENOMEM; | |
201 | ||
17f9c355 YW |
202 | *route = (Route) { |
203 | .family = AF_UNSPEC, | |
204 | .scope = RT_SCOPE_UNIVERSE, | |
205 | .protocol = RTPROT_UNSPEC, | |
206 | .type = RTN_UNICAST, | |
207 | .table = RT_TABLE_MAIN, | |
208 | .lifetime = USEC_INFINITY, | |
209 | .quickack = -1, | |
633c7258 | 210 | .fast_open_no_cookie = -1, |
54901fd2 | 211 | .gateway_onlink = -1, |
9b88f20a | 212 | .ttl_propagate = -1, |
17f9c355 | 213 | }; |
f0213e37 | 214 | |
1cc6c93a | 215 | *ret = TAKE_PTR(route); |
f0213e37 TG |
216 | |
217 | return 0; | |
218 | } | |
219 | ||
9560e5b3 | 220 | static int route_new_static(Network *network, const char *filename, unsigned section_line, Route **ret) { |
8e766630 LP |
221 | _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; |
222 | _cleanup_(route_freep) Route *route = NULL; | |
f0213e37 | 223 | int r; |
f579559b | 224 | |
8c34b963 LP |
225 | assert(network); |
226 | assert(ret); | |
2a54a044 YW |
227 | assert(filename); |
228 | assert(section_line > 0); | |
f4859fc7 | 229 | |
2a54a044 YW |
230 | r = network_config_section_new(filename, section_line, &n); |
231 | if (r < 0) | |
232 | return r; | |
6ae115c1 | 233 | |
2a54a044 YW |
234 | route = hashmap_get(network->routes_by_section, n); |
235 | if (route) { | |
236 | *ret = TAKE_PTR(route); | |
237 | return 0; | |
6ae115c1 TG |
238 | } |
239 | ||
2a54a044 | 240 | if (hashmap_size(network->routes_by_section) >= routes_max()) |
8c34b963 LP |
241 | return -E2BIG; |
242 | ||
ed9e361a | 243 | r = route_new(&route); |
f0213e37 TG |
244 | if (r < 0) |
245 | return r; | |
801bd9e8 | 246 | |
ed9e361a | 247 | route->protocol = RTPROT_STATIC; |
0f7f2769 | 248 | route->network = network; |
2a54a044 | 249 | route->section = TAKE_PTR(n); |
cacc1dbf | 250 | |
ecd80ce2 | 251 | r = hashmap_ensure_put(&network->routes_by_section, &network_config_hash_ops, route->section, route); |
2a54a044 YW |
252 | if (r < 0) |
253 | return r; | |
6ae115c1 | 254 | |
1cc6c93a | 255 | *ret = TAKE_PTR(route); |
f579559b TG |
256 | return 0; |
257 | } | |
258 | ||
169948e9 | 259 | Route *route_free(Route *route) { |
f579559b | 260 | if (!route) |
169948e9 | 261 | return NULL; |
f579559b | 262 | |
f048a16b | 263 | if (route->network) { |
2a54a044 YW |
264 | assert(route->section); |
265 | hashmap_remove(route->network->routes_by_section, route->section); | |
f048a16b | 266 | } |
6ae115c1 | 267 | |
fd45e522 ZJS |
268 | network_config_section_free(route->section); |
269 | ||
1c8e710c | 270 | if (route->link) { |
50550722 | 271 | NDiscRoute *n; |
50550722 | 272 | |
1c8e710c TG |
273 | set_remove(route->link->routes, route); |
274 | set_remove(route->link->routes_foreign, route); | |
6e537f62 YW |
275 | set_remove(route->link->dhcp_routes, route); |
276 | set_remove(route->link->dhcp_routes_old, route); | |
1633c457 YW |
277 | set_remove(route->link->dhcp6_routes, route); |
278 | set_remove(route->link->dhcp6_routes_old, route); | |
279 | set_remove(route->link->dhcp6_pd_routes, route); | |
280 | set_remove(route->link->dhcp6_pd_routes_old, route); | |
90e74a66 | 281 | SET_FOREACH(n, route->link->ndisc_routes) |
50550722 YW |
282 | if (n->route == route) |
283 | free(set_remove(route->link->ndisc_routes, n)); | |
1c8e710c TG |
284 | } |
285 | ||
ad208fac YW |
286 | if (route->manager) { |
287 | set_remove(route->manager->routes, route); | |
288 | set_remove(route->manager->routes_foreign, route); | |
289 | } | |
290 | ||
6ff5cc6b YW |
291 | ordered_set_free_free(route->multipath_routes); |
292 | ||
f833694d TG |
293 | sd_event_source_unref(route->expire); |
294 | ||
169948e9 | 295 | return mfree(route); |
f579559b TG |
296 | } |
297 | ||
501b09db | 298 | void route_hash_func(const Route *route, struct siphash *state) { |
bb7ae737 TG |
299 | assert(route); |
300 | ||
301 | siphash24_compress(&route->family, sizeof(route->family), state); | |
302 | ||
01aaa3df YW |
303 | switch (route->family) { |
304 | case AF_INET: | |
305 | case AF_INET6: | |
01aaa3df | 306 | siphash24_compress(&route->dst_prefixlen, sizeof(route->dst_prefixlen), state); |
67e05dd8 ZJS |
307 | siphash24_compress(&route->dst, FAMILY_ADDRESS_SIZE(route->family), state); |
308 | ||
01aaa3df | 309 | siphash24_compress(&route->src_prefixlen, sizeof(route->src_prefixlen), state); |
67e05dd8 ZJS |
310 | siphash24_compress(&route->src, FAMILY_ADDRESS_SIZE(route->family), state); |
311 | ||
6dd53981 | 312 | siphash24_compress(&route->gw_family, sizeof(route->gw_family), state); |
40075951 | 313 | if (IN_SET(route->gw_family, AF_INET, AF_INET6)) { |
6dd53981 | 314 | siphash24_compress(&route->gw, FAMILY_ADDRESS_SIZE(route->gw_family), state); |
40075951 YW |
315 | siphash24_compress(&route->gw_weight, sizeof(route->gw_weight), state); |
316 | } | |
67e05dd8 | 317 | |
01aaa3df YW |
318 | siphash24_compress(&route->prefsrc, FAMILY_ADDRESS_SIZE(route->family), state); |
319 | ||
320 | siphash24_compress(&route->tos, sizeof(route->tos), state); | |
321 | siphash24_compress(&route->priority, sizeof(route->priority), state); | |
322 | siphash24_compress(&route->table, sizeof(route->table), state); | |
323 | siphash24_compress(&route->protocol, sizeof(route->protocol), state); | |
324 | siphash24_compress(&route->scope, sizeof(route->scope), state); | |
325 | siphash24_compress(&route->type, sizeof(route->type), state); | |
67e05dd8 | 326 | |
fa3e401a YW |
327 | siphash24_compress(&route->initcwnd, sizeof(route->initcwnd), state); |
328 | siphash24_compress(&route->initrwnd, sizeof(route->initrwnd), state); | |
01aaa3df | 329 | |
007cac09 SS |
330 | siphash24_compress(&route->advmss, sizeof(route->advmss), state); |
331 | ||
01aaa3df YW |
332 | break; |
333 | default: | |
334 | /* treat any other address family as AF_UNSPEC */ | |
335 | break; | |
336 | } | |
337 | } | |
338 | ||
501b09db | 339 | int route_compare_func(const Route *a, const Route *b) { |
01aaa3df YW |
340 | int r; |
341 | ||
342 | r = CMP(a->family, b->family); | |
343 | if (r != 0) | |
344 | return r; | |
345 | ||
346 | switch (a->family) { | |
347 | case AF_INET: | |
348 | case AF_INET6: | |
349 | r = CMP(a->dst_prefixlen, b->dst_prefixlen); | |
350 | if (r != 0) | |
351 | return r; | |
352 | ||
67e05dd8 ZJS |
353 | r = memcmp(&a->dst, &b->dst, FAMILY_ADDRESS_SIZE(a->family)); |
354 | if (r != 0) | |
355 | return r; | |
356 | ||
01aaa3df YW |
357 | r = CMP(a->src_prefixlen, b->src_prefixlen); |
358 | if (r != 0) | |
359 | return r; | |
360 | ||
67e05dd8 | 361 | r = memcmp(&a->src, &b->src, FAMILY_ADDRESS_SIZE(a->family)); |
01aaa3df YW |
362 | if (r != 0) |
363 | return r; | |
364 | ||
6dd53981 | 365 | r = CMP(a->gw_family, b->gw_family); |
01aaa3df YW |
366 | if (r != 0) |
367 | return r; | |
368 | ||
6dd53981 YW |
369 | if (IN_SET(a->gw_family, AF_INET, AF_INET6)) { |
370 | r = memcmp(&a->gw, &b->gw, FAMILY_ADDRESS_SIZE(a->family)); | |
371 | if (r != 0) | |
372 | return r; | |
40075951 YW |
373 | |
374 | r = CMP(a->gw_weight, b->gw_weight); | |
375 | if (r != 0) | |
376 | return r; | |
6dd53981 YW |
377 | } |
378 | ||
67e05dd8 | 379 | r = memcmp(&a->prefsrc, &b->prefsrc, FAMILY_ADDRESS_SIZE(a->family)); |
01aaa3df YW |
380 | if (r != 0) |
381 | return r; | |
382 | ||
67e05dd8 | 383 | r = CMP(a->tos, b->tos); |
01aaa3df YW |
384 | if (r != 0) |
385 | return r; | |
386 | ||
67e05dd8 | 387 | r = CMP(a->priority, b->priority); |
01aaa3df YW |
388 | if (r != 0) |
389 | return r; | |
390 | ||
67e05dd8 | 391 | r = CMP(a->table, b->table); |
01aaa3df YW |
392 | if (r != 0) |
393 | return r; | |
394 | ||
67e05dd8 | 395 | r = CMP(a->protocol, b->protocol); |
fa3e401a YW |
396 | if (r != 0) |
397 | return r; | |
398 | ||
67e05dd8 | 399 | r = CMP(a->scope, b->scope); |
fa3e401a YW |
400 | if (r != 0) |
401 | return r; | |
402 | ||
67e05dd8 | 403 | r = CMP(a->type, b->type); |
01aaa3df YW |
404 | if (r != 0) |
405 | return r; | |
406 | ||
67e05dd8 | 407 | r = CMP(a->initcwnd, b->initcwnd); |
01aaa3df YW |
408 | if (r != 0) |
409 | return r; | |
410 | ||
67e05dd8 | 411 | r = CMP(a->initrwnd, b->initrwnd); |
01aaa3df YW |
412 | if (r != 0) |
413 | return r; | |
414 | ||
007cac09 SS |
415 | r = CMP(a->advmss, b->advmss); |
416 | if (r != 0) | |
417 | return r; | |
418 | ||
67e05dd8 | 419 | return 0; |
01aaa3df YW |
420 | default: |
421 | /* treat any other address family as AF_UNSPEC */ | |
422 | return 0; | |
423 | } | |
424 | } | |
425 | ||
426 | DEFINE_HASH_OPS_WITH_KEY_DESTRUCTOR( | |
c077a205 | 427 | route_hash_ops, |
01aaa3df | 428 | Route, |
c077a205 YW |
429 | route_hash_func, |
430 | route_compare_func, | |
01aaa3df YW |
431 | route_free); |
432 | ||
423c249c | 433 | static bool route_equal(const Route *r1, const Route *r2) { |
7ecf0c3e TJ |
434 | if (r1 == r2) |
435 | return true; | |
436 | ||
437 | if (!r1 || !r2) | |
438 | return false; | |
439 | ||
440 | return route_compare_func(r1, r2) == 0; | |
441 | } | |
442 | ||
423c249c | 443 | static int route_get(const Manager *manager, const Link *link, const Route *in, Route **ret) { |
f1368755 | 444 | Route *existing; |
1b566071 | 445 | |
ad208fac | 446 | assert(manager || link); |
f1368755 | 447 | assert(in); |
1c8e710c | 448 | |
ad208fac YW |
449 | if (link) { |
450 | existing = set_get(link->routes, in); | |
451 | if (existing) { | |
452 | if (ret) | |
453 | *ret = existing; | |
454 | return 1; | |
455 | } | |
1c8e710c | 456 | |
ad208fac YW |
457 | existing = set_get(link->routes_foreign, in); |
458 | if (existing) { | |
459 | if (ret) | |
460 | *ret = existing; | |
461 | return 0; | |
462 | } | |
463 | } else { | |
464 | existing = set_get(manager->routes, in); | |
465 | if (existing) { | |
466 | if (ret) | |
467 | *ret = existing; | |
468 | return 1; | |
469 | } | |
470 | ||
471 | existing = set_get(manager->routes_foreign, in); | |
472 | if (existing) { | |
473 | if (ret) | |
474 | *ret = existing; | |
475 | return 0; | |
476 | } | |
1b566071 | 477 | } |
1c8e710c | 478 | |
1b566071 | 479 | return -ENOENT; |
1c8e710c TG |
480 | } |
481 | ||
f9bb3338 YW |
482 | static void route_copy(Route *dest, const Route *src, const MultipathRoute *m) { |
483 | assert(dest); | |
484 | assert(src); | |
485 | ||
486 | dest->family = src->family; | |
487 | dest->src = src->src; | |
488 | dest->src_prefixlen = src->src_prefixlen; | |
489 | dest->dst = src->dst; | |
490 | dest->dst_prefixlen = src->dst_prefixlen; | |
491 | dest->prefsrc = src->prefsrc; | |
492 | dest->scope = src->scope; | |
493 | dest->protocol = src->protocol; | |
494 | dest->type = src->type; | |
495 | dest->tos = src->tos; | |
496 | dest->priority = src->priority; | |
497 | dest->table = src->table; | |
498 | dest->initcwnd = src->initcwnd; | |
499 | dest->initrwnd = src->initrwnd; | |
500 | dest->lifetime = src->lifetime; | |
007cac09 | 501 | dest->advmss= src->advmss; |
f9bb3338 YW |
502 | |
503 | if (m) { | |
504 | dest->gw_family = m->gateway.family; | |
505 | dest->gw = m->gateway.address; | |
506 | dest->gw_weight = m->weight; | |
507 | } else { | |
508 | dest->gw_family = src->gw_family; | |
509 | dest->gw = src->gw; | |
40075951 | 510 | dest->gw_weight = src->gw_weight; |
f9bb3338 YW |
511 | } |
512 | } | |
889b550f | 513 | |
cc17f75f | 514 | static int route_add_internal(Manager *manager, Link *link, Set **routes, const Route *in, Route **ret) { |
8e766630 | 515 | _cleanup_(route_freep) Route *route = NULL; |
1c8e710c TG |
516 | int r; |
517 | ||
ad208fac | 518 | assert(manager || link); |
1c8e710c | 519 | assert(routes); |
f1368755 | 520 | assert(in); |
1c8e710c TG |
521 | |
522 | r = route_new(&route); | |
523 | if (r < 0) | |
524 | return r; | |
525 | ||
cc17f75f | 526 | route_copy(route, in, NULL); |
1c8e710c | 527 | |
de7fef4b | 528 | r = set_ensure_put(routes, &route_hash_ops, route); |
1c8e710c TG |
529 | if (r < 0) |
530 | return r; | |
75a302b5 YW |
531 | if (r == 0) |
532 | return -EEXIST; | |
1c8e710c TG |
533 | |
534 | route->link = link; | |
ad208fac | 535 | route->manager = manager; |
1c8e710c TG |
536 | |
537 | if (ret) | |
538 | *ret = route; | |
539 | ||
540 | route = NULL; | |
541 | ||
542 | return 0; | |
543 | } | |
544 | ||
423c249c | 545 | static int route_add_foreign(Manager *manager, Link *link, const Route *in, Route **ret) { |
ad208fac | 546 | assert(manager || link); |
cc17f75f | 547 | return route_add_internal(manager, link, link ? &link->routes_foreign : &manager->routes_foreign, in, ret); |
1c8e710c TG |
548 | } |
549 | ||
f9bb3338 | 550 | static int route_add(Manager *manager, Link *link, const Route *in, const MultipathRoute *m, Route **ret) { |
cc17f75f | 551 | _cleanup_(route_freep) Route *tmp = NULL; |
d9eee312 | 552 | bool is_new = false; |
1c8e710c TG |
553 | Route *route; |
554 | int r; | |
555 | ||
ad208fac YW |
556 | assert(manager || link); |
557 | assert(in); | |
558 | ||
cc17f75f YW |
559 | if (m) { |
560 | assert(link && (m->ifindex == 0 || m->ifindex == link->ifindex)); | |
561 | ||
562 | r = route_new(&tmp); | |
563 | if (r < 0) | |
564 | return r; | |
565 | ||
566 | route_copy(tmp, in, m); | |
567 | in = tmp; | |
568 | } | |
569 | ||
ad208fac | 570 | r = route_get(manager, link, in, &route); |
1c8e710c TG |
571 | if (r == -ENOENT) { |
572 | /* Route does not exist, create a new one */ | |
cc17f75f | 573 | r = route_add_internal(manager, link, link ? &link->routes : &manager->routes, in, &route); |
1c8e710c TG |
574 | if (r < 0) |
575 | return r; | |
d9eee312 | 576 | is_new = true; |
1c8e710c TG |
577 | } else if (r == 0) { |
578 | /* Take over a foreign route */ | |
ad208fac YW |
579 | if (link) { |
580 | r = set_ensure_put(&link->routes, &route_hash_ops, route); | |
581 | if (r < 0) | |
582 | return r; | |
1c8e710c | 583 | |
ad208fac YW |
584 | set_remove(link->routes_foreign, route); |
585 | } else { | |
586 | r = set_ensure_put(&manager->routes, &route_hash_ops, route); | |
587 | if (r < 0) | |
588 | return r; | |
589 | ||
590 | set_remove(manager->routes_foreign, route); | |
591 | } | |
1c8e710c TG |
592 | } else if (r == 1) { |
593 | /* Route exists, do nothing */ | |
594 | ; | |
595 | } else | |
596 | return r; | |
597 | ||
856e309d MC |
598 | if (ret) |
599 | *ret = route; | |
d9eee312 | 600 | return is_new; |
1c8e710c TG |
601 | } |
602 | ||
6c252588 YW |
603 | static bool route_type_is_reject(const Route *route) { |
604 | assert(route); | |
605 | ||
606 | return IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE, RTN_THROW); | |
607 | } | |
608 | ||
552b90a2 | 609 | static void log_route_debug(const Route *route, const char *str, const Link *link, const Manager *m) { |
167a5561 YW |
610 | assert(route); |
611 | assert(str); | |
552b90a2 | 612 | assert(m); |
167a5561 YW |
613 | |
614 | /* link may be NULL. */ | |
615 | ||
616 | if (DEBUG_LOGGING) { | |
5380707a YW |
617 | _cleanup_free_ char *dst = NULL, *src = NULL, *gw = NULL, *prefsrc = NULL, |
618 | *table = NULL, *scope = NULL, *proto = NULL; | |
167a5561 | 619 | |
5380707a YW |
620 | if (in_addr_is_set(route->family, &route->dst)) |
621 | (void) in_addr_prefix_to_string(route->family, &route->dst, route->dst_prefixlen, &dst); | |
94876904 | 622 | if (in_addr_is_set(route->family, &route->src)) |
167a5561 | 623 | (void) in_addr_to_string(route->family, &route->src, &src); |
94876904 | 624 | if (in_addr_is_set(route->gw_family, &route->gw)) |
167a5561 | 625 | (void) in_addr_to_string(route->gw_family, &route->gw, &gw); |
94876904 | 626 | if (in_addr_is_set(route->family, &route->prefsrc)) |
167a5561 | 627 | (void) in_addr_to_string(route->family, &route->prefsrc, &prefsrc); |
e4ffe103 | 628 | (void) route_scope_to_string_alloc(route->scope, &scope); |
552b90a2 | 629 | (void) manager_get_route_table_to_string(m, route->table, &table); |
e4ffe103 | 630 | (void) route_protocol_full_to_string_alloc(route->protocol, &proto); |
167a5561 YW |
631 | |
632 | log_link_debug(link, | |
5380707a YW |
633 | "%s route: dst: %s, src: %s, gw: %s, prefsrc: %s, scope: %s, table: %s, proto: %s, type: %s", |
634 | str, strna(dst), strna(src), strna(gw), strna(prefsrc), | |
e4ffe103 | 635 | strna(scope), strna(table), strna(proto), |
167a5561 YW |
636 | strna(route_type_to_string(route->type))); |
637 | } | |
638 | } | |
639 | ||
5f4d7aa4 YW |
640 | static int route_set_netlink_message(const Route *route, sd_netlink_message *req, Link *link) { |
641 | unsigned flags; | |
642 | int r; | |
643 | ||
644 | assert(route); | |
645 | assert(req); | |
646 | ||
647 | /* link may be NULL */ | |
648 | ||
94876904 | 649 | if (in_addr_is_set(route->gw_family, &route->gw)) { |
5f4d7aa4 YW |
650 | if (route->gw_family == route->family) { |
651 | r = netlink_message_append_in_addr_union(req, RTA_GATEWAY, route->gw_family, &route->gw); | |
652 | if (r < 0) | |
653 | return log_link_error_errno(link, r, "Could not append RTA_GATEWAY attribute: %m"); | |
654 | } else { | |
655 | RouteVia rtvia = { | |
656 | .family = route->gw_family, | |
657 | .address = route->gw, | |
658 | }; | |
659 | ||
660 | r = sd_netlink_message_append_data(req, RTA_VIA, &rtvia, sizeof(rtvia)); | |
661 | if (r < 0) | |
662 | return log_link_error_errno(link, r, "Could not append RTA_VIA attribute: %m"); | |
663 | } | |
664 | } | |
665 | ||
666 | if (route->dst_prefixlen > 0) { | |
667 | r = netlink_message_append_in_addr_union(req, RTA_DST, route->family, &route->dst); | |
668 | if (r < 0) | |
669 | return log_link_error_errno(link, r, "Could not append RTA_DST attribute: %m"); | |
670 | ||
671 | r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen); | |
672 | if (r < 0) | |
673 | return log_link_error_errno(link, r, "Could not set destination prefix length: %m"); | |
674 | } | |
675 | ||
676 | if (route->src_prefixlen > 0) { | |
677 | r = netlink_message_append_in_addr_union(req, RTA_SRC, route->family, &route->src); | |
678 | if (r < 0) | |
679 | return log_link_error_errno(link, r, "Could not append RTA_SRC attribute: %m"); | |
680 | ||
681 | r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen); | |
682 | if (r < 0) | |
683 | return log_link_error_errno(link, r, "Could not set source prefix length: %m"); | |
684 | } | |
685 | ||
94876904 | 686 | if (in_addr_is_set(route->family, &route->prefsrc)) { |
5f4d7aa4 YW |
687 | r = netlink_message_append_in_addr_union(req, RTA_PREFSRC, route->family, &route->prefsrc); |
688 | if (r < 0) | |
689 | return log_link_error_errno(link, r, "Could not append RTA_PREFSRC attribute: %m"); | |
690 | } | |
691 | ||
692 | r = sd_rtnl_message_route_set_scope(req, route->scope); | |
693 | if (r < 0) | |
694 | return log_link_error_errno(link, r, "Could not set scope: %m"); | |
695 | ||
696 | flags = route->flags; | |
697 | if (route->gateway_onlink >= 0) | |
698 | SET_FLAG(flags, RTNH_F_ONLINK, route->gateway_onlink); | |
699 | ||
700 | r = sd_rtnl_message_route_set_flags(req, flags); | |
701 | if (r < 0) | |
702 | return log_link_error_errno(link, r, "Could not set flags: %m"); | |
703 | ||
704 | if (route->table != RT_TABLE_MAIN) { | |
705 | if (route->table < 256) { | |
706 | r = sd_rtnl_message_route_set_table(req, route->table); | |
707 | if (r < 0) | |
708 | return log_link_error_errno(link, r, "Could not set route table: %m"); | |
709 | } else { | |
710 | r = sd_rtnl_message_route_set_table(req, RT_TABLE_UNSPEC); | |
711 | if (r < 0) | |
712 | return log_link_error_errno(link, r, "Could not set route table: %m"); | |
713 | ||
714 | /* Table attribute to allow more than 256. */ | |
715 | r = sd_netlink_message_append_data(req, RTA_TABLE, &route->table, sizeof(route->table)); | |
716 | if (r < 0) | |
717 | return log_link_error_errno(link, r, "Could not append RTA_TABLE attribute: %m"); | |
718 | } | |
719 | } | |
720 | ||
721 | r = sd_rtnl_message_route_set_type(req, route->type); | |
722 | if (r < 0) | |
723 | return log_link_error_errno(link, r, "Could not set route type: %m"); | |
724 | ||
6c252588 | 725 | if (!route_type_is_reject(route)) { |
5f4d7aa4 YW |
726 | assert(link); /* Those routes must be attached to a specific link */ |
727 | ||
728 | r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex); | |
729 | if (r < 0) | |
730 | return log_link_error_errno(link, r, "Could not append RTA_OIF attribute: %m"); | |
731 | } | |
732 | ||
733 | r = sd_netlink_message_append_u8(req, RTA_PREF, route->pref); | |
734 | if (r < 0) | |
735 | return log_link_error_errno(link, r, "Could not append RTA_PREF attribute: %m"); | |
736 | ||
737 | r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority); | |
738 | if (r < 0) | |
739 | return log_link_error_errno(link, r, "Could not append RTA_PRIORITY attribute: %m"); | |
740 | ||
741 | return 0; | |
742 | } | |
743 | ||
302a796f | 744 | static int route_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { |
4645ad47 YW |
745 | int r; |
746 | ||
747 | assert(m); | |
4645ad47 | 748 | |
ad208fac YW |
749 | /* Note that link may be NULL. */ |
750 | if (link && IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
4645ad47 YW |
751 | return 1; |
752 | ||
753 | r = sd_netlink_message_get_errno(m); | |
754 | if (r < 0 && r != -ESRCH) | |
5ecb131d | 755 | log_link_message_warning_errno(link, m, r, "Could not drop route, ignoring"); |
4645ad47 YW |
756 | |
757 | return 1; | |
758 | } | |
759 | ||
ad208fac | 760 | int route_remove( |
423c249c | 761 | const Route *route, |
ad208fac YW |
762 | Manager *manager, |
763 | Link *link, | |
764 | link_netlink_message_handler_t callback) { | |
27efb52b | 765 | |
4afd3348 | 766 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
5c1d3fc9 UTL |
767 | int r; |
768 | ||
ad208fac | 769 | assert(link || manager); |
4c701096 | 770 | assert(IN_SET(route->family, AF_INET, AF_INET6)); |
5c1d3fc9 | 771 | |
ad208fac YW |
772 | if (!manager) |
773 | manager = link->manager; | |
081b3009 | 774 | /* link may be NULL! */ |
ad208fac | 775 | |
552b90a2 | 776 | log_route_debug(route, "Removing", link, manager); |
167a5561 | 777 | |
ad208fac | 778 | r = sd_rtnl_message_new_route(manager->rtnl, &req, |
28cc555d DW |
779 | RTM_DELROUTE, route->family, |
780 | route->protocol); | |
f647962d | 781 | if (r < 0) |
7750b796 | 782 | return log_link_error_errno(link, r, "Could not create RTM_DELROUTE message: %m"); |
5c1d3fc9 | 783 | |
5f4d7aa4 | 784 | r = route_set_netlink_message(route, req, link); |
f647962d | 785 | if (r < 0) |
5f4d7aa4 | 786 | return r; |
5c1d3fc9 | 787 | |
bac319a7 | 788 | r = netlink_call_async(manager->rtnl, NULL, req, |
302a796f YW |
789 | callback ?: route_remove_handler, |
790 | link_netlink_destroy_callback, link); | |
f647962d | 791 | if (r < 0) |
7750b796 | 792 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); |
5c1d3fc9 | 793 | |
081b3009 | 794 | link_ref(link); /* link may be NULL, link_ref() is OK with that */ |
563c69c6 | 795 | |
5c1d3fc9 UTL |
796 | return 0; |
797 | } | |
798 | ||
1132a714 | 799 | static bool link_has_route(const Link *link, const Route *route) { |
779804dd YW |
800 | Route *net_route; |
801 | ||
802 | assert(link); | |
803 | assert(route); | |
804 | ||
805 | if (!link->network) | |
806 | return false; | |
807 | ||
2a54a044 | 808 | HASHMAP_FOREACH(net_route, link->network->routes_by_section) |
779804dd YW |
809 | if (route_equal(net_route, route)) |
810 | return true; | |
811 | ||
812 | return false; | |
813 | } | |
814 | ||
4055ec93 | 815 | static bool links_have_route(const Manager *manager, const Route *route, const Link *except) { |
1132a714 YW |
816 | Link *link; |
817 | ||
818 | assert(manager); | |
819 | ||
820 | HASHMAP_FOREACH(link, manager->links) { | |
821 | if (link == except) | |
822 | continue; | |
823 | ||
824 | if (link_has_route(link, route)) | |
825 | return true; | |
826 | } | |
827 | ||
828 | return false; | |
829 | } | |
830 | ||
4055ec93 | 831 | static int manager_drop_routes_internal(Manager *manager, bool foreign, const Link *except) { |
1132a714 YW |
832 | Route *route; |
833 | int k, r = 0; | |
4055ec93 | 834 | Set *routes; |
1132a714 YW |
835 | |
836 | assert(manager); | |
837 | ||
4055ec93 YW |
838 | routes = foreign ? manager->routes_foreign : manager->routes; |
839 | SET_FOREACH(route, routes) { | |
0f1f933b | 840 | /* Do not touch routes managed by the kernel. */ |
1132a714 YW |
841 | if (route->protocol == RTPROT_KERNEL) |
842 | continue; | |
843 | ||
0f1f933b | 844 | /* The route will be configured later, or already configured by a link. */ |
4055ec93 | 845 | if (links_have_route(manager, route, except)) |
1132a714 YW |
846 | continue; |
847 | ||
0f1f933b | 848 | /* The existing links do not have the route. Let's drop this now. It may be |
1132a714 YW |
849 | * re-configured later. */ |
850 | k = route_remove(route, manager, NULL, NULL); | |
851 | if (k < 0 && r >= 0) | |
852 | r = k; | |
853 | } | |
854 | ||
855 | return r; | |
856 | } | |
857 | ||
4055ec93 YW |
858 | static int manager_drop_foreign_routes(Manager *manager) { |
859 | return manager_drop_routes_internal(manager, true, NULL); | |
860 | } | |
1132a714 | 861 | |
4055ec93 YW |
862 | static int manager_drop_routes(Manager *manager, const Link *except) { |
863 | return manager_drop_routes_internal(manager, false, except); | |
1132a714 YW |
864 | } |
865 | ||
779804dd YW |
866 | int link_drop_foreign_routes(Link *link) { |
867 | Route *route; | |
868 | int k, r = 0; | |
869 | ||
870 | assert(link); | |
1132a714 | 871 | assert(link->manager); |
779804dd YW |
872 | |
873 | SET_FOREACH(route, link->routes_foreign) { | |
874 | /* do not touch routes managed by the kernel */ | |
875 | if (route->protocol == RTPROT_KERNEL) | |
876 | continue; | |
877 | ||
878 | /* do not touch multicast route added by kernel */ | |
879 | /* FIXME: Why the kernel adds this route with protocol RTPROT_BOOT??? We need to investigate that. | |
880 | * https://tools.ietf.org/html/rfc4862#section-5.4 may explain why. */ | |
881 | if (route->protocol == RTPROT_BOOT && | |
882 | route->family == AF_INET6 && | |
883 | route->dst_prefixlen == 8 && | |
884 | in_addr_equal(AF_INET6, &route->dst, &(union in_addr_union) { .in6 = {{{ 0xff,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0 }}} })) | |
885 | continue; | |
886 | ||
887 | if (route->protocol == RTPROT_STATIC && link->network && | |
888 | FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_STATIC)) | |
889 | continue; | |
890 | ||
891 | if (route->protocol == RTPROT_DHCP && link->network && | |
892 | FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_DHCP)) | |
893 | continue; | |
894 | ||
1132a714 | 895 | if (link_has_route(link, route)) |
f9bb3338 | 896 | k = route_add(NULL, link, route, NULL, NULL); |
779804dd | 897 | else |
ad208fac | 898 | k = route_remove(route, NULL, link, NULL); |
779804dd YW |
899 | if (k < 0 && r >= 0) |
900 | r = k; | |
901 | } | |
902 | ||
1132a714 YW |
903 | k = manager_drop_foreign_routes(link->manager); |
904 | if (k < 0 && r >= 0) | |
905 | r = k; | |
906 | ||
779804dd YW |
907 | return r; |
908 | } | |
909 | ||
62f0ea5f YW |
910 | int link_drop_routes(Link *link) { |
911 | Route *route; | |
912 | int k, r = 0; | |
913 | ||
914 | assert(link); | |
915 | ||
916 | SET_FOREACH(route, link->routes) { | |
917 | /* do not touch routes managed by the kernel */ | |
918 | if (route->protocol == RTPROT_KERNEL) | |
919 | continue; | |
920 | ||
ad208fac | 921 | k = route_remove(route, NULL, link, NULL); |
62f0ea5f YW |
922 | if (k < 0 && r >= 0) |
923 | r = k; | |
924 | } | |
925 | ||
1132a714 YW |
926 | k = manager_drop_routes(link->manager, link); |
927 | if (k < 0 && r >= 0) | |
928 | r = k; | |
929 | ||
62f0ea5f YW |
930 | return r; |
931 | } | |
932 | ||
74154c2e | 933 | static int route_expire_handler(sd_event_source *s, uint64_t usec, void *userdata) { |
f833694d TG |
934 | Route *route = userdata; |
935 | int r; | |
936 | ||
937 | assert(route); | |
938 | ||
ad208fac | 939 | r = route_remove(route, route->manager, route->link, NULL); |
d6ad41e2 | 940 | if (r < 0) { |
98b02994 | 941 | log_link_warning_errno(route->link, r, "Could not remove route: %m"); |
fe7ca21a | 942 | route_free(route); |
d6ad41e2 | 943 | } |
f833694d TG |
944 | |
945 | return 1; | |
946 | } | |
947 | ||
f9bb3338 YW |
948 | static int route_add_and_setup_timer(Link *link, const Route *route, const MultipathRoute *m, Route **ret) { |
949 | _cleanup_(sd_event_source_unrefp) sd_event_source *expire = NULL; | |
950 | Route *nr; | |
d9eee312 | 951 | int r, k; |
f9bb3338 YW |
952 | |
953 | assert(link); | |
954 | assert(route); | |
955 | ||
6c252588 | 956 | if (route_type_is_reject(route)) |
d9eee312 | 957 | k = route_add(link->manager, NULL, route, NULL, &nr); |
f9bb3338 | 958 | else if (!m || m->ifindex == 0 || m->ifindex == link->ifindex) |
d9eee312 | 959 | k = route_add(NULL, link, route, m, &nr); |
f9bb3338 YW |
960 | else { |
961 | Link *link_gw; | |
962 | ||
963 | r = link_get(link->manager, m->ifindex, &link_gw); | |
964 | if (r < 0) | |
965 | return log_link_error_errno(link, r, "Failed to get link with ifindex %d: %m", m->ifindex); | |
966 | ||
d9eee312 | 967 | k = route_add(NULL, link_gw, route, m, &nr); |
f9bb3338 | 968 | } |
d9eee312 YW |
969 | if (k < 0) |
970 | return log_link_error_errno(link, k, "Could not add route: %m"); | |
f9bb3338 YW |
971 | |
972 | /* TODO: drop expiration handling once it can be pushed into the kernel */ | |
973 | if (nr->lifetime != USEC_INFINITY && !kernel_route_expiration_supported()) { | |
974 | r = sd_event_add_time(link->manager->event, &expire, clock_boottime_or_monotonic(), | |
975 | nr->lifetime, 0, route_expire_handler, nr); | |
976 | if (r < 0) | |
977 | return log_link_error_errno(link, r, "Could not arm expiration timer: %m"); | |
978 | } | |
979 | ||
980 | sd_event_source_unref(nr->expire); | |
981 | nr->expire = TAKE_PTR(expire); | |
982 | ||
983 | if (ret) | |
984 | *ret = nr; | |
985 | ||
d9eee312 | 986 | return k; |
f9bb3338 YW |
987 | } |
988 | ||
423c249c | 989 | static int append_nexthop_one(const Route *route, const MultipathRoute *m, struct rtattr **rta, size_t offset) { |
6ff5cc6b YW |
990 | struct rtnexthop *rtnh; |
991 | struct rtattr *new_rta; | |
992 | int r; | |
993 | ||
994 | assert(route); | |
995 | assert(m); | |
996 | assert(rta); | |
997 | assert(*rta); | |
998 | ||
999 | new_rta = realloc(*rta, RTA_ALIGN((*rta)->rta_len) + RTA_SPACE(sizeof(struct rtnexthop))); | |
1000 | if (!new_rta) | |
1001 | return -ENOMEM; | |
1002 | *rta = new_rta; | |
1003 | ||
1004 | rtnh = (struct rtnexthop *)((uint8_t *) *rta + offset); | |
1005 | *rtnh = (struct rtnexthop) { | |
1006 | .rtnh_len = sizeof(*rtnh), | |
1007 | .rtnh_ifindex = m->ifindex, | |
1008 | .rtnh_hops = m->weight > 0 ? m->weight - 1 : 0, | |
1009 | }; | |
1010 | ||
1011 | (*rta)->rta_len += sizeof(struct rtnexthop); | |
1012 | ||
1013 | if (route->family == m->gateway.family) { | |
1014 | r = rtattr_append_attribute(rta, RTA_GATEWAY, &m->gateway.address, FAMILY_ADDRESS_SIZE(m->gateway.family)); | |
1015 | if (r < 0) | |
1016 | goto clear; | |
1017 | rtnh = (struct rtnexthop *)((uint8_t *) *rta + offset); | |
1018 | rtnh->rtnh_len += RTA_SPACE(FAMILY_ADDRESS_SIZE(m->gateway.family)); | |
1019 | } else { | |
1020 | r = rtattr_append_attribute(rta, RTA_VIA, &m->gateway, FAMILY_ADDRESS_SIZE(m->gateway.family) + sizeof(m->gateway.family)); | |
1021 | if (r < 0) | |
1022 | goto clear; | |
1023 | rtnh = (struct rtnexthop *)((uint8_t *) *rta + offset); | |
1024 | rtnh->rtnh_len += RTA_SPACE(FAMILY_ADDRESS_SIZE(m->gateway.family) + sizeof(m->gateway.family)); | |
1025 | } | |
1026 | ||
1027 | return 0; | |
1028 | ||
1029 | clear: | |
1030 | (*rta)->rta_len -= sizeof(struct rtnexthop); | |
1031 | return r; | |
1032 | } | |
1033 | ||
423c249c | 1034 | static int append_nexthops(const Route *route, sd_netlink_message *req) { |
6ff5cc6b YW |
1035 | _cleanup_free_ struct rtattr *rta = NULL; |
1036 | struct rtnexthop *rtnh; | |
1037 | MultipathRoute *m; | |
1038 | size_t offset; | |
6ff5cc6b YW |
1039 | int r; |
1040 | ||
1041 | if (ordered_set_isempty(route->multipath_routes)) | |
1042 | return 0; | |
1043 | ||
1044 | rta = new(struct rtattr, 1); | |
1045 | if (!rta) | |
1046 | return -ENOMEM; | |
1047 | ||
1048 | *rta = (struct rtattr) { | |
1049 | .rta_type = RTA_MULTIPATH, | |
1050 | .rta_len = RTA_LENGTH(0), | |
1051 | }; | |
1052 | offset = (uint8_t *) RTA_DATA(rta) - (uint8_t *) rta; | |
1053 | ||
90e74a66 | 1054 | ORDERED_SET_FOREACH(m, route->multipath_routes) { |
6ff5cc6b YW |
1055 | r = append_nexthop_one(route, m, &rta, offset); |
1056 | if (r < 0) | |
1057 | return r; | |
1058 | ||
1059 | rtnh = (struct rtnexthop *)((uint8_t *) rta + offset); | |
1060 | offset = (uint8_t *) RTNH_NEXT(rtnh) - (uint8_t *) rta; | |
1061 | } | |
1062 | ||
1063 | r = sd_netlink_message_append_data(req, RTA_MULTIPATH, RTA_DATA(rta), RTA_PAYLOAD(rta)); | |
1064 | if (r < 0) | |
1065 | return r; | |
1066 | ||
1067 | return 0; | |
1068 | } | |
1069 | ||
1b566071 | 1070 | int route_configure( |
423c249c | 1071 | const Route *route, |
1b566071 | 1072 | Link *link, |
80b0e860 YW |
1073 | link_netlink_message_handler_t callback, |
1074 | Route **ret) { | |
1b566071 | 1075 | |
4afd3348 | 1076 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; |
d9eee312 | 1077 | int r, k = 0; |
0ef9f3c7 | 1078 | Route *nr; |
f579559b | 1079 | |
f579559b | 1080 | assert(link); |
f882c247 TG |
1081 | assert(link->manager); |
1082 | assert(link->manager->rtnl); | |
f579559b | 1083 | assert(link->ifindex > 0); |
4c701096 | 1084 | assert(IN_SET(route->family, AF_INET, AF_INET6)); |
bd1175bc | 1085 | assert(callback); |
f579559b | 1086 | |
ad208fac | 1087 | if (route_get(link->manager, link, route, NULL) <= 0 && |
47d2d30d | 1088 | set_size(link->routes) >= routes_max()) |
7750b796 YW |
1089 | return log_link_error_errno(link, SYNTHETIC_ERRNO(E2BIG), |
1090 | "Too many routes are configured, refusing: %m"); | |
1b566071 | 1091 | |
552b90a2 | 1092 | log_route_debug(route, "Configuring", link, link->manager); |
156ed65e | 1093 | |
151b9b96 | 1094 | r = sd_rtnl_message_new_route(link->manager->rtnl, &req, |
28cc555d DW |
1095 | RTM_NEWROUTE, route->family, |
1096 | route->protocol); | |
f647962d | 1097 | if (r < 0) |
7750b796 | 1098 | return log_link_error_errno(link, r, "Could not create RTM_NEWROUTE message: %m"); |
f579559b | 1099 | |
5f4d7aa4 | 1100 | r = route_set_netlink_message(route, req, link); |
f647962d | 1101 | if (r < 0) |
5f4d7aa4 | 1102 | return r; |
3b015d40 | 1103 | |
f02ba163 DD |
1104 | if (route->lifetime != USEC_INFINITY && kernel_route_expiration_supported()) { |
1105 | r = sd_netlink_message_append_u32(req, RTA_EXPIRES, | |
1106 | DIV_ROUND_UP(usec_sub_unsigned(route->lifetime, now(clock_boottime_or_monotonic())), USEC_PER_SEC)); | |
1107 | if (r < 0) | |
7750b796 | 1108 | return log_link_error_errno(link, r, "Could not append RTA_EXPIRES attribute: %m"); |
f02ba163 DD |
1109 | } |
1110 | ||
9b88f20a SS |
1111 | if (route->ttl_propagate >= 0) { |
1112 | r = sd_netlink_message_append_u8(req, RTA_TTL_PROPAGATE, route->ttl_propagate); | |
1113 | if (r < 0) | |
1114 | return log_link_error_errno(link, r, "Could not append RTA_TTL_PROPAGATE attribute: %m"); | |
1115 | } | |
1116 | ||
d6fceaf1 SS |
1117 | r = sd_netlink_message_open_container(req, RTA_METRICS); |
1118 | if (r < 0) | |
7750b796 | 1119 | return log_link_error_errno(link, r, "Could not append RTA_METRICS attribute: %m"); |
d6fceaf1 SS |
1120 | |
1121 | if (route->mtu > 0) { | |
1122 | r = sd_netlink_message_append_u32(req, RTAX_MTU, route->mtu); | |
1123 | if (r < 0) | |
7750b796 | 1124 | return log_link_error_errno(link, r, "Could not append RTAX_MTU attribute: %m"); |
d6fceaf1 SS |
1125 | } |
1126 | ||
6b21ad33 | 1127 | if (route->initcwnd > 0) { |
323d9329 SS |
1128 | r = sd_netlink_message_append_u32(req, RTAX_INITCWND, route->initcwnd); |
1129 | if (r < 0) | |
7750b796 | 1130 | return log_link_error_errno(link, r, "Could not append RTAX_INITCWND attribute: %m"); |
323d9329 SS |
1131 | } |
1132 | ||
6b21ad33 | 1133 | if (route->initrwnd > 0) { |
323d9329 SS |
1134 | r = sd_netlink_message_append_u32(req, RTAX_INITRWND, route->initrwnd); |
1135 | if (r < 0) | |
7750b796 | 1136 | return log_link_error_errno(link, r, "Could not append RTAX_INITRWND attribute: %m"); |
323d9329 SS |
1137 | } |
1138 | ||
67c193bf | 1139 | if (route->quickack >= 0) { |
09f5dfad SS |
1140 | r = sd_netlink_message_append_u32(req, RTAX_QUICKACK, route->quickack); |
1141 | if (r < 0) | |
7750b796 | 1142 | return log_link_error_errno(link, r, "Could not append RTAX_QUICKACK attribute: %m"); |
09f5dfad SS |
1143 | } |
1144 | ||
633c7258 SS |
1145 | if (route->fast_open_no_cookie >= 0) { |
1146 | r = sd_netlink_message_append_u32(req, RTAX_FASTOPEN_NO_COOKIE, route->fast_open_no_cookie); | |
1147 | if (r < 0) | |
1148 | return log_link_error_errno(link, r, "Could not append RTAX_FASTOPEN_NO_COOKIE attribute: %m"); | |
1149 | } | |
1150 | ||
007cac09 SS |
1151 | if (route->advmss > 0) { |
1152 | r = sd_netlink_message_append_u32(req, RTAX_ADVMSS, route->advmss); | |
1153 | if (r < 0) | |
1154 | return log_link_error_errno(link, r, "Could not append RTAX_ADVMSS attribute: %m"); | |
1155 | } | |
1156 | ||
d6fceaf1 SS |
1157 | r = sd_netlink_message_close_container(req); |
1158 | if (r < 0) | |
7750b796 | 1159 | return log_link_error_errno(link, r, "Could not append RTA_METRICS attribute: %m"); |
d6fceaf1 | 1160 | |
6ff5cc6b YW |
1161 | r = append_nexthops(route, req); |
1162 | if (r < 0) | |
1163 | return log_link_error_errno(link, r, "Could not append RTA_MULTIPATH attribute: %m"); | |
1164 | ||
f9bb3338 | 1165 | if (ordered_set_isempty(route->multipath_routes)) { |
d9eee312 YW |
1166 | k = route_add_and_setup_timer(link, route, NULL, &nr); |
1167 | if (k < 0) | |
1168 | return k; | |
f9bb3338 YW |
1169 | } else { |
1170 | MultipathRoute *m; | |
f833694d | 1171 | |
f9bb3338 YW |
1172 | assert(!ret); |
1173 | ||
1174 | ORDERED_SET_FOREACH(m, route->multipath_routes) { | |
1175 | r = route_add_and_setup_timer(link, route, m, NULL); | |
1176 | if (r < 0) | |
1177 | return r; | |
d9eee312 YW |
1178 | if (r > 0) |
1179 | k = 1; | |
f9bb3338 YW |
1180 | } |
1181 | } | |
80b0e860 | 1182 | |
0c54bfd6 YW |
1183 | r = netlink_call_async(link->manager->rtnl, NULL, req, callback, |
1184 | link_netlink_destroy_callback, link); | |
1185 | if (r < 0) | |
1186 | return log_link_error_errno(link, r, "Could not send rtnetlink message: %m"); | |
1187 | ||
1188 | link_ref(link); | |
1189 | ||
0ef9f3c7 YW |
1190 | if (ret) |
1191 | *ret = nr; | |
1192 | ||
d9eee312 | 1193 | return k; |
f579559b TG |
1194 | } |
1195 | ||
141318f7 YW |
1196 | static int route_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { |
1197 | int r; | |
1198 | ||
1199 | assert(link); | |
1200 | assert(link->route_messages > 0); | |
141318f7 YW |
1201 | |
1202 | link->route_messages--; | |
1203 | ||
1204 | if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) | |
1205 | return 1; | |
1206 | ||
1207 | r = sd_netlink_message_get_errno(m); | |
1208 | if (r < 0 && r != -EEXIST) { | |
1209 | log_link_message_warning_errno(link, m, r, "Could not set route"); | |
1210 | link_enter_failed(link); | |
1211 | return 1; | |
1212 | } | |
1213 | ||
1214 | if (link->route_messages == 0) { | |
1215 | log_link_debug(link, "Routes set"); | |
1216 | link->static_routes_configured = true; | |
1217 | link_set_nexthop(link); | |
1218 | } | |
1219 | ||
1220 | return 1; | |
1221 | } | |
1222 | ||
1223 | int link_set_routes(Link *link) { | |
1224 | enum { | |
1225 | PHASE_NON_GATEWAY, /* First phase: Routes without a gateway */ | |
1226 | PHASE_GATEWAY, /* Second phase: Routes with a gateway */ | |
1227 | _PHASE_MAX | |
1228 | } phase; | |
1229 | Route *rt; | |
1230 | int r; | |
1231 | ||
1232 | assert(link); | |
1233 | assert(link->network); | |
1234 | assert(link->state != _LINK_STATE_INVALID); | |
1235 | ||
1236 | link->static_routes_configured = false; | |
1237 | ||
1238 | if (!link->addresses_ready) | |
1239 | return 0; | |
1240 | ||
1241 | if (!link_has_carrier(link) && !link->network->configure_without_carrier) | |
1242 | /* During configuring addresses, the link lost its carrier. As networkd is dropping | |
1243 | * the addresses now, let's not configure the routes either. */ | |
1244 | return 0; | |
1245 | ||
bd4733da YW |
1246 | if (link->route_messages != 0) { |
1247 | log_link_debug(link, "Static routes are configuring."); | |
1248 | return 0; | |
1249 | } | |
1250 | ||
141318f7 YW |
1251 | r = link_set_routing_policy_rules(link); |
1252 | if (r < 0) | |
1253 | return r; | |
1254 | ||
1255 | /* First add the routes that enable us to talk to gateways, then add in the others that need a gateway. */ | |
1256 | for (phase = 0; phase < _PHASE_MAX; phase++) | |
2a54a044 | 1257 | HASHMAP_FOREACH(rt, link->network->routes_by_section) { |
1a3a6309 | 1258 | if (rt->gateway_from_dhcp_or_ra) |
141318f7 YW |
1259 | continue; |
1260 | ||
94876904 | 1261 | if ((!in_addr_is_set(rt->gw_family, &rt->gw) && ordered_set_isempty(rt->multipath_routes)) != (phase == PHASE_NON_GATEWAY)) |
141318f7 YW |
1262 | continue; |
1263 | ||
1264 | r = route_configure(rt, link, route_handler, NULL); | |
1265 | if (r < 0) | |
1266 | return log_link_warning_errno(link, r, "Could not set routes: %m"); | |
8c212f76 YW |
1267 | |
1268 | link->route_messages++; | |
141318f7 YW |
1269 | } |
1270 | ||
1271 | if (link->route_messages == 0) { | |
1272 | link->static_routes_configured = true; | |
1273 | link_set_nexthop(link); | |
1274 | } else { | |
1275 | log_link_debug(link, "Setting routes"); | |
1276 | link_set_state(link, LINK_STATE_CONFIGURING); | |
1277 | } | |
1278 | ||
1279 | return 0; | |
1280 | } | |
1281 | ||
f9bb3338 YW |
1282 | static int process_route_one(Manager *manager, Link *link, uint16_t type, const Route *tmp, const MultipathRoute *m) { |
1283 | _cleanup_(route_freep) Route *nr = NULL; | |
1284 | Route *route = NULL; | |
1285 | int r; | |
1286 | ||
1287 | assert(manager); | |
1288 | assert(tmp); | |
1289 | assert(IN_SET(type, RTM_NEWROUTE, RTM_DELROUTE)); | |
1290 | ||
1291 | if (m) { | |
1292 | if (link) | |
1293 | return log_link_warning_errno(link, SYNTHETIC_ERRNO(EINVAL), | |
1294 | "rtnl: received route contains both RTA_OIF and RTA_MULTIPATH, ignoring."); | |
1295 | ||
1296 | if (m->ifindex <= 0) | |
1297 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
1298 | "rtnl: received multipath route with invalid ifindex, ignoring."); | |
1299 | ||
1300 | r = link_get(manager, m->ifindex, &link); | |
1301 | if (r < 0) { | |
1302 | log_warning_errno(r, "rtnl: received multipath route for link (%d) we do not know, ignoring: %m", m->ifindex); | |
1303 | return 0; | |
1304 | } | |
1305 | ||
1306 | r = route_new(&nr); | |
1307 | if (r < 0) | |
1308 | return log_oom(); | |
1309 | ||
1310 | route_copy(nr, tmp, m); | |
1311 | ||
1312 | tmp = nr; | |
1313 | } | |
1314 | ||
1315 | (void) route_get(manager, link, tmp, &route); | |
1316 | ||
f9bb3338 YW |
1317 | switch (type) { |
1318 | case RTM_NEWROUTE: | |
167a5561 YW |
1319 | if (!route) { |
1320 | if (!manager->manage_foreign_routes) | |
552b90a2 | 1321 | log_route_debug(tmp, "Ignoring received foreign", link, manager); |
167a5561 YW |
1322 | else { |
1323 | /* A route appeared that we did not request */ | |
552b90a2 | 1324 | log_route_debug(tmp, "Remembering foreign", link, manager); |
167a5561 YW |
1325 | r = route_add_foreign(manager, link, tmp, NULL); |
1326 | if (r < 0) { | |
1327 | log_link_warning_errno(link, r, "Failed to remember foreign route, ignoring: %m"); | |
1328 | return 0; | |
1329 | } | |
f9bb3338 | 1330 | } |
167a5561 | 1331 | } else |
552b90a2 | 1332 | log_route_debug(tmp, "Received remembered", link, manager); |
f9bb3338 YW |
1333 | |
1334 | break; | |
1335 | ||
1336 | case RTM_DELROUTE: | |
167a5561 YW |
1337 | log_route_debug(tmp, |
1338 | route ? "Forgetting" : | |
552b90a2 YW |
1339 | manager->manage_foreign_routes ? "Kernel removed unknown" : "Ignoring received foreign", |
1340 | link, manager); | |
f9bb3338 YW |
1341 | route_free(route); |
1342 | break; | |
1343 | ||
1344 | default: | |
1345 | assert_not_reached("Received route message with invalid RTNL message type"); | |
1346 | } | |
1347 | ||
1348 | return 1; | |
1349 | } | |
1350 | ||
4468f01b | 1351 | int manager_rtnl_process_route(sd_netlink *rtnl, sd_netlink_message *message, Manager *m) { |
f9bb3338 | 1352 | _cleanup_ordered_set_free_free_ OrderedSet *multipath_routes = NULL; |
4468f01b | 1353 | _cleanup_(route_freep) Route *tmp = NULL; |
f9bb3338 | 1354 | _cleanup_free_ void *rta_multipath = NULL; |
4468f01b YW |
1355 | Link *link = NULL; |
1356 | uint32_t ifindex; | |
1357 | uint16_t type; | |
1358 | unsigned char table; | |
f9bb3338 | 1359 | size_t rta_len; |
4468f01b YW |
1360 | int r; |
1361 | ||
1362 | assert(rtnl); | |
1363 | assert(message); | |
1364 | assert(m); | |
1365 | ||
1366 | if (sd_netlink_message_is_error(message)) { | |
1367 | r = sd_netlink_message_get_errno(message); | |
1368 | if (r < 0) | |
1369 | log_message_warning_errno(message, r, "rtnl: failed to receive route message, ignoring"); | |
1370 | ||
1371 | return 0; | |
1372 | } | |
1373 | ||
1374 | r = sd_netlink_message_get_type(message, &type); | |
1375 | if (r < 0) { | |
1376 | log_warning_errno(r, "rtnl: could not get message type, ignoring: %m"); | |
1377 | return 0; | |
1378 | } else if (!IN_SET(type, RTM_NEWROUTE, RTM_DELROUTE)) { | |
1379 | log_warning("rtnl: received unexpected message type %u when processing route, ignoring.", type); | |
1380 | return 0; | |
1381 | } | |
1382 | ||
1383 | r = sd_netlink_message_read_u32(message, RTA_OIF, &ifindex); | |
ad208fac | 1384 | if (r < 0 && r != -ENODATA) { |
4468f01b YW |
1385 | log_warning_errno(r, "rtnl: could not get ifindex from route message, ignoring: %m"); |
1386 | return 0; | |
ad208fac YW |
1387 | } else if (r >= 0) { |
1388 | if (ifindex <= 0) { | |
1389 | log_warning("rtnl: received route message with invalid ifindex %d, ignoring.", ifindex); | |
1390 | return 0; | |
1391 | } | |
4468f01b | 1392 | |
ad208fac YW |
1393 | r = link_get(m, ifindex, &link); |
1394 | if (r < 0 || !link) { | |
1395 | /* when enumerating we might be out of sync, but we will | |
1396 | * get the route again, so just ignore it */ | |
1397 | if (!m->enumerating) | |
1398 | log_warning("rtnl: received route message for link (%d) we do not know about, ignoring", ifindex); | |
1399 | return 0; | |
1400 | } | |
4468f01b YW |
1401 | } |
1402 | ||
1403 | r = route_new(&tmp); | |
1404 | if (r < 0) | |
1405 | return log_oom(); | |
1406 | ||
1407 | r = sd_rtnl_message_route_get_family(message, &tmp->family); | |
1408 | if (r < 0) { | |
1409 | log_link_warning(link, "rtnl: received route message without family, ignoring"); | |
1410 | return 0; | |
1411 | } else if (!IN_SET(tmp->family, AF_INET, AF_INET6)) { | |
1412 | log_link_debug(link, "rtnl: received route message with invalid family '%i', ignoring", tmp->family); | |
1413 | return 0; | |
1414 | } | |
1415 | ||
1416 | r = sd_rtnl_message_route_get_protocol(message, &tmp->protocol); | |
1417 | if (r < 0) { | |
1418 | log_warning_errno(r, "rtnl: received route message without route protocol: %m"); | |
1419 | return 0; | |
1420 | } | |
1421 | ||
ad6df717 YW |
1422 | r = netlink_message_read_in_addr_union(message, RTA_DST, tmp->family, &tmp->dst); |
1423 | if (r < 0 && r != -ENODATA) { | |
1424 | log_link_warning_errno(link, r, "rtnl: received route message without valid destination, ignoring: %m"); | |
1425 | return 0; | |
1426 | } | |
4468f01b | 1427 | |
ad6df717 YW |
1428 | r = netlink_message_read_in_addr_union(message, RTA_GATEWAY, tmp->family, &tmp->gw); |
1429 | if (r < 0 && r != -ENODATA) { | |
1430 | log_link_warning_errno(link, r, "rtnl: received route message without valid gateway, ignoring: %m"); | |
1431 | return 0; | |
1432 | } else if (r >= 0) | |
1433 | tmp->gw_family = tmp->family; | |
1434 | else if (tmp->family == AF_INET) { | |
1435 | RouteVia via; | |
6dd53981 YW |
1436 | |
1437 | r = sd_netlink_message_read(message, RTA_VIA, sizeof(via), &via); | |
1438 | if (r < 0 && r != -ENODATA) { | |
1439 | log_link_warning_errno(link, r, "rtnl: received route message without valid gateway, ignoring: %m"); | |
1440 | return 0; | |
1441 | } else if (r >= 0) { | |
1442 | tmp->gw_family = via.family; | |
1443 | tmp->gw = via.address; | |
4468f01b | 1444 | } |
ad6df717 | 1445 | } |
4468f01b | 1446 | |
ad6df717 YW |
1447 | r = netlink_message_read_in_addr_union(message, RTA_SRC, tmp->family, &tmp->src); |
1448 | if (r < 0 && r != -ENODATA) { | |
1449 | log_link_warning_errno(link, r, "rtnl: received route message without valid source, ignoring: %m"); | |
1450 | return 0; | |
1451 | } | |
4468f01b | 1452 | |
ad6df717 YW |
1453 | r = netlink_message_read_in_addr_union(message, RTA_PREFSRC, tmp->family, &tmp->prefsrc); |
1454 | if (r < 0 && r != -ENODATA) { | |
1455 | log_link_warning_errno(link, r, "rtnl: received route message without valid preferred source, ignoring: %m"); | |
4468f01b YW |
1456 | return 0; |
1457 | } | |
1458 | ||
1459 | r = sd_rtnl_message_route_get_dst_prefixlen(message, &tmp->dst_prefixlen); | |
1460 | if (r < 0) { | |
1461 | log_link_warning_errno(link, r, "rtnl: received route message with invalid destination prefixlen, ignoring: %m"); | |
1462 | return 0; | |
1463 | } | |
1464 | ||
1465 | r = sd_rtnl_message_route_get_src_prefixlen(message, &tmp->src_prefixlen); | |
1466 | if (r < 0) { | |
1467 | log_link_warning_errno(link, r, "rtnl: received route message with invalid source prefixlen, ignoring: %m"); | |
1468 | return 0; | |
1469 | } | |
1470 | ||
1471 | r = sd_rtnl_message_route_get_scope(message, &tmp->scope); | |
1472 | if (r < 0) { | |
1473 | log_link_warning_errno(link, r, "rtnl: received route message with invalid scope, ignoring: %m"); | |
1474 | return 0; | |
1475 | } | |
1476 | ||
1477 | r = sd_rtnl_message_route_get_tos(message, &tmp->tos); | |
1478 | if (r < 0) { | |
1479 | log_link_warning_errno(link, r, "rtnl: received route message with invalid tos, ignoring: %m"); | |
1480 | return 0; | |
1481 | } | |
1482 | ||
1483 | r = sd_rtnl_message_route_get_type(message, &tmp->type); | |
1484 | if (r < 0) { | |
1485 | log_link_warning_errno(link, r, "rtnl: received route message with invalid type, ignoring: %m"); | |
1486 | return 0; | |
1487 | } | |
1488 | ||
1489 | r = sd_rtnl_message_route_get_table(message, &table); | |
1490 | if (r < 0) { | |
1491 | log_link_warning_errno(link, r, "rtnl: received route message with invalid table, ignoring: %m"); | |
1492 | return 0; | |
1493 | } | |
1494 | tmp->table = table; | |
1495 | ||
1496 | r = sd_netlink_message_read_u32(message, RTA_PRIORITY, &tmp->priority); | |
1497 | if (r < 0 && r != -ENODATA) { | |
1498 | log_link_warning_errno(link, r, "rtnl: received route message with invalid priority, ignoring: %m"); | |
1499 | return 0; | |
1500 | } | |
1501 | ||
1502 | r = sd_netlink_message_enter_container(message, RTA_METRICS); | |
1503 | if (r < 0 && r != -ENODATA) { | |
1504 | log_link_error_errno(link, r, "rtnl: Could not enter RTA_METRICS container: %m"); | |
1505 | return 0; | |
1506 | } | |
1507 | if (r >= 0) { | |
1508 | r = sd_netlink_message_read_u32(message, RTAX_INITCWND, &tmp->initcwnd); | |
1509 | if (r < 0 && r != -ENODATA) { | |
1510 | log_link_warning_errno(link, r, "rtnl: received route message with invalid initcwnd, ignoring: %m"); | |
1511 | return 0; | |
1512 | } | |
1513 | ||
1514 | r = sd_netlink_message_read_u32(message, RTAX_INITRWND, &tmp->initrwnd); | |
1515 | if (r < 0 && r != -ENODATA) { | |
1516 | log_link_warning_errno(link, r, "rtnl: received route message with invalid initrwnd, ignoring: %m"); | |
1517 | return 0; | |
386e8908 YW |
1518 | } |
1519 | ||
1520 | r = sd_netlink_message_read_u32(message, RTAX_ADVMSS, &tmp->advmss); | |
1521 | if (r < 0 && r != -ENODATA) { | |
1522 | log_link_warning_errno(link, r, "rtnl: received route message with invalid advmss, ignoring: %m"); | |
1523 | return 0; | |
4468f01b YW |
1524 | } |
1525 | ||
1526 | r = sd_netlink_message_exit_container(message); | |
1527 | if (r < 0) { | |
1528 | log_link_error_errno(link, r, "rtnl: Could not exit from RTA_METRICS container: %m"); | |
1529 | return 0; | |
1530 | } | |
1531 | } | |
1532 | ||
f9bb3338 YW |
1533 | r = sd_netlink_message_read_data(message, RTA_MULTIPATH, &rta_len, &rta_multipath); |
1534 | if (r < 0 && r != -ENODATA) { | |
1535 | log_link_warning_errno(link, r, "rtnl: failed to read RTA_MULTIPATH attribute, ignoring: %m"); | |
1536 | return 0; | |
1537 | } else if (r >= 0) { | |
1538 | r = rtattr_read_nexthop(rta_multipath, rta_len, tmp->family, &multipath_routes); | |
1539 | if (r < 0) { | |
1540 | log_link_warning_errno(link, r, "rtnl: failed to parse RTA_MULTIPATH attribute, ignoring: %m"); | |
1541 | return 0; | |
4468f01b | 1542 | } |
4468f01b YW |
1543 | } |
1544 | ||
575f14ee YW |
1545 | /* IPv6 routes with reject type are always assigned to the loopback interface. See kernel's |
1546 | * fib6_nh_init() in net/ipv6/route.c. However, we'd like to manage them by Manager. Hence, set | |
1547 | * link to NULL here. */ | |
1548 | if (route_type_is_reject(tmp)) | |
1549 | link = NULL; | |
1550 | ||
f9bb3338 YW |
1551 | if (ordered_set_isempty(multipath_routes)) |
1552 | (void) process_route_one(m, link, type, tmp, NULL); | |
1553 | else { | |
1554 | MultipathRoute *mr; | |
4468f01b | 1555 | |
f9bb3338 YW |
1556 | ORDERED_SET_FOREACH(mr, multipath_routes) { |
1557 | r = process_route_one(m, link, type, tmp, mr); | |
1558 | if (r < 0) | |
1559 | break; | |
1560 | } | |
4468f01b YW |
1561 | } |
1562 | ||
1563 | return 1; | |
1564 | } | |
1565 | ||
fa7cd711 | 1566 | int network_add_ipv4ll_route(Network *network) { |
fcbf4cb7 | 1567 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
2a54a044 | 1568 | unsigned section_line; |
fa7cd711 YW |
1569 | int r; |
1570 | ||
1571 | assert(network); | |
1572 | ||
1573 | if (!network->ipv4ll_route) | |
1574 | return 0; | |
1575 | ||
2a54a044 YW |
1576 | section_line = hashmap_find_free_section_line(network->routes_by_section); |
1577 | ||
fa7cd711 | 1578 | /* IPv4LLRoute= is in [Network] section. */ |
2a54a044 | 1579 | r = route_new_static(network, network->filename, section_line, &n); |
fa7cd711 YW |
1580 | if (r < 0) |
1581 | return r; | |
1582 | ||
1583 | r = in_addr_from_string(AF_INET, "169.254.0.0", &n->dst); | |
1584 | if (r < 0) | |
1585 | return r; | |
1586 | ||
1587 | n->family = AF_INET; | |
1588 | n->dst_prefixlen = 16; | |
1589 | n->scope = RT_SCOPE_LINK; | |
94d6e299 YW |
1590 | n->scope_set = true; |
1591 | n->table_set = true; | |
fa7cd711 YW |
1592 | n->priority = IPV4LL_ROUTE_METRIC; |
1593 | n->protocol = RTPROT_STATIC; | |
1594 | ||
1595 | TAKE_PTR(n); | |
1596 | return 0; | |
1597 | } | |
1598 | ||
5d5003ab YW |
1599 | int network_add_default_route_on_device(Network *network) { |
1600 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; | |
2a54a044 | 1601 | unsigned section_line; |
5d5003ab YW |
1602 | int r; |
1603 | ||
1604 | assert(network); | |
1605 | ||
1606 | if (!network->default_route_on_device) | |
1607 | return 0; | |
1608 | ||
2a54a044 YW |
1609 | section_line = hashmap_find_free_section_line(network->routes_by_section); |
1610 | ||
5d5003ab | 1611 | /* DefaultRouteOnDevice= is in [Network] section. */ |
2a54a044 | 1612 | r = route_new_static(network, network->filename, section_line, &n); |
5d5003ab YW |
1613 | if (r < 0) |
1614 | return r; | |
1615 | ||
5d5003ab | 1616 | n->family = AF_INET; |
c697db75 YW |
1617 | n->scope = RT_SCOPE_LINK; |
1618 | n->scope_set = true; | |
1619 | n->protocol = RTPROT_STATIC; | |
5d5003ab YW |
1620 | |
1621 | TAKE_PTR(n); | |
1622 | return 0; | |
1623 | } | |
1624 | ||
27efb52b YW |
1625 | int config_parse_gateway( |
1626 | const char *unit, | |
f579559b TG |
1627 | const char *filename, |
1628 | unsigned line, | |
1629 | const char *section, | |
71a61510 | 1630 | unsigned section_line, |
f579559b TG |
1631 | const char *lvalue, |
1632 | int ltype, | |
1633 | const char *rvalue, | |
1634 | void *data, | |
1635 | void *userdata) { | |
44e7b949 | 1636 | |
6ae115c1 | 1637 | Network *network = userdata; |
fcbf4cb7 | 1638 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7934dede | 1639 | int r; |
f579559b TG |
1640 | |
1641 | assert(filename); | |
6ae115c1 | 1642 | assert(section); |
f579559b TG |
1643 | assert(lvalue); |
1644 | assert(rvalue); | |
1645 | assert(data); | |
1646 | ||
92fe133a | 1647 | if (streq(section, "Network")) { |
2a54a044 YW |
1648 | /* we are not in an Route section, so use line number instead */ |
1649 | r = route_new_static(network, filename, line, &n); | |
d96edb2c YW |
1650 | if (r == -ENOMEM) |
1651 | return log_oom(); | |
1652 | if (r < 0) { | |
1653 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1654 | "Failed to allocate route, ignoring assignment: %m"); | |
1655 | return 0; | |
1656 | } | |
1985c54f | 1657 | } else { |
f4859fc7 | 1658 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1659 | if (r == -ENOMEM) |
1660 | return log_oom(); | |
1661 | if (r < 0) { | |
1662 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1663 | "Failed to allocate route, ignoring assignment: %m"); | |
1664 | return 0; | |
1665 | } | |
1985c54f | 1666 | |
d442bb37 | 1667 | if (isempty(rvalue)) { |
1a3a6309 | 1668 | n->gateway_from_dhcp_or_ra = false; |
d442bb37 YW |
1669 | n->gw_family = AF_UNSPEC; |
1670 | n->gw = IN_ADDR_NULL; | |
1671 | TAKE_PTR(n); | |
1672 | return 0; | |
1673 | } | |
1674 | ||
427928ca | 1675 | if (streq(rvalue, "_dhcp")) { |
1a3a6309 | 1676 | n->gateway_from_dhcp_or_ra = true; |
1985c54f YW |
1677 | TAKE_PTR(n); |
1678 | return 0; | |
1679 | } | |
d306d1d0 YW |
1680 | |
1681 | if (streq(rvalue, "_dhcp4")) { | |
1682 | n->gw_family = AF_INET; | |
1a3a6309 | 1683 | n->gateway_from_dhcp_or_ra = true; |
d306d1d0 YW |
1684 | TAKE_PTR(n); |
1685 | return 0; | |
1686 | } | |
1687 | ||
b8caa4ef | 1688 | if (streq(rvalue, "_ipv6ra")) { |
d306d1d0 | 1689 | n->gw_family = AF_INET6; |
1a3a6309 | 1690 | n->gateway_from_dhcp_or_ra = true; |
d306d1d0 YW |
1691 | TAKE_PTR(n); |
1692 | return 0; | |
1693 | } | |
1985c54f | 1694 | } |
f579559b | 1695 | |
6dd53981 | 1696 | r = in_addr_from_string_auto(rvalue, &n->gw_family, &n->gw); |
f579559b | 1697 | if (r < 0) { |
d96edb2c | 1698 | log_syntax(unit, LOG_WARNING, filename, line, r, |
01d4e732 | 1699 | "Invalid %s='%s', ignoring assignment: %m", lvalue, rvalue); |
f579559b TG |
1700 | return 0; |
1701 | } | |
1702 | ||
1a3a6309 | 1703 | n->gateway_from_dhcp_or_ra = false; |
aff44301 | 1704 | TAKE_PTR(n); |
f579559b TG |
1705 | return 0; |
1706 | } | |
6ae115c1 | 1707 | |
27efb52b YW |
1708 | int config_parse_preferred_src( |
1709 | const char *unit, | |
0d07e595 JK |
1710 | const char *filename, |
1711 | unsigned line, | |
1712 | const char *section, | |
1713 | unsigned section_line, | |
1714 | const char *lvalue, | |
1715 | int ltype, | |
1716 | const char *rvalue, | |
1717 | void *data, | |
1718 | void *userdata) { | |
1719 | ||
1720 | Network *network = userdata; | |
fcbf4cb7 | 1721 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7934dede | 1722 | int r; |
0d07e595 JK |
1723 | |
1724 | assert(filename); | |
1725 | assert(section); | |
1726 | assert(lvalue); | |
1727 | assert(rvalue); | |
1728 | assert(data); | |
1729 | ||
f4859fc7 | 1730 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1731 | if (r == -ENOMEM) |
1732 | return log_oom(); | |
1733 | if (r < 0) { | |
1734 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1735 | "Failed to allocate route, ignoring assignment: %m"); | |
1736 | return 0; | |
1737 | } | |
0d07e595 | 1738 | |
01d4e732 YW |
1739 | if (n->family == AF_UNSPEC) |
1740 | r = in_addr_from_string_auto(rvalue, &n->family, &n->prefsrc); | |
1741 | else | |
1742 | r = in_addr_from_string(n->family, rvalue, &n->prefsrc); | |
0d07e595 | 1743 | if (r < 0) { |
d96edb2c | 1744 | log_syntax(unit, LOG_WARNING, filename, line, EINVAL, |
01d4e732 | 1745 | "Invalid %s='%s', ignoring assignment: %m", lvalue, rvalue); |
0d07e595 JK |
1746 | return 0; |
1747 | } | |
1748 | ||
aff44301 | 1749 | TAKE_PTR(n); |
0d07e595 JK |
1750 | return 0; |
1751 | } | |
1752 | ||
27efb52b YW |
1753 | int config_parse_destination( |
1754 | const char *unit, | |
6ae115c1 TG |
1755 | const char *filename, |
1756 | unsigned line, | |
1757 | const char *section, | |
1758 | unsigned section_line, | |
1759 | const char *lvalue, | |
1760 | int ltype, | |
1761 | const char *rvalue, | |
1762 | void *data, | |
1763 | void *userdata) { | |
44e7b949 | 1764 | |
6ae115c1 | 1765 | Network *network = userdata; |
fcbf4cb7 | 1766 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7934dede YW |
1767 | union in_addr_union *buffer; |
1768 | unsigned char *prefixlen; | |
ca3bad65 | 1769 | int r; |
6ae115c1 TG |
1770 | |
1771 | assert(filename); | |
1772 | assert(section); | |
1773 | assert(lvalue); | |
1774 | assert(rvalue); | |
1775 | assert(data); | |
1776 | ||
f4859fc7 | 1777 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1778 | if (r == -ENOMEM) |
1779 | return log_oom(); | |
1780 | if (r < 0) { | |
1781 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1782 | "Failed to allocate route, ignoring assignment: %m"); | |
1783 | return 0; | |
1784 | } | |
6ae115c1 | 1785 | |
9e7e4408 | 1786 | if (streq(lvalue, "Destination")) { |
7934dede YW |
1787 | buffer = &n->dst; |
1788 | prefixlen = &n->dst_prefixlen; | |
9e7e4408 | 1789 | } else if (streq(lvalue, "Source")) { |
7934dede YW |
1790 | buffer = &n->src; |
1791 | prefixlen = &n->src_prefixlen; | |
9e7e4408 TG |
1792 | } else |
1793 | assert_not_reached(lvalue); | |
1794 | ||
01d4e732 YW |
1795 | if (n->family == AF_UNSPEC) |
1796 | r = in_addr_prefix_from_string_auto(rvalue, &n->family, buffer, prefixlen); | |
1797 | else | |
1798 | r = in_addr_prefix_from_string(rvalue, n->family, buffer, prefixlen); | |
7934dede | 1799 | if (r < 0) { |
d96edb2c | 1800 | log_syntax(unit, LOG_WARNING, filename, line, EINVAL, |
01d4e732 | 1801 | "Invalid %s='%s', ignoring assignment: %m", lvalue, rvalue); |
7934dede YW |
1802 | return 0; |
1803 | } | |
1804 | ||
aff44301 | 1805 | TAKE_PTR(n); |
6ae115c1 TG |
1806 | return 0; |
1807 | } | |
5d8e593d | 1808 | |
27efb52b YW |
1809 | int config_parse_route_priority( |
1810 | const char *unit, | |
1811 | const char *filename, | |
1812 | unsigned line, | |
1813 | const char *section, | |
1814 | unsigned section_line, | |
1815 | const char *lvalue, | |
1816 | int ltype, | |
1817 | const char *rvalue, | |
1818 | void *data, | |
1819 | void *userdata) { | |
1820 | ||
5d8e593d | 1821 | Network *network = userdata; |
fcbf4cb7 | 1822 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
5d8e593d SS |
1823 | int r; |
1824 | ||
1825 | assert(filename); | |
1826 | assert(section); | |
1827 | assert(lvalue); | |
1828 | assert(rvalue); | |
1829 | assert(data); | |
1830 | ||
f4859fc7 | 1831 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1832 | if (r == -ENOMEM) |
1833 | return log_oom(); | |
1834 | if (r < 0) { | |
1835 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1836 | "Failed to allocate route, ignoring assignment: %m"); | |
1837 | return 0; | |
1838 | } | |
5d8e593d | 1839 | |
aff44301 | 1840 | r = safe_atou32(rvalue, &n->priority); |
1c4b1179 | 1841 | if (r < 0) { |
d96edb2c | 1842 | log_syntax(unit, LOG_WARNING, filename, line, r, |
1c4b1179 SS |
1843 | "Could not parse route priority \"%s\", ignoring assignment: %m", rvalue); |
1844 | return 0; | |
1845 | } | |
5d8e593d | 1846 | |
c27abcf4 | 1847 | n->priority_set = true; |
aff44301 | 1848 | TAKE_PTR(n); |
5d8e593d SS |
1849 | return 0; |
1850 | } | |
769b56a3 | 1851 | |
27efb52b YW |
1852 | int config_parse_route_scope( |
1853 | const char *unit, | |
1854 | const char *filename, | |
1855 | unsigned line, | |
1856 | const char *section, | |
1857 | unsigned section_line, | |
1858 | const char *lvalue, | |
1859 | int ltype, | |
1860 | const char *rvalue, | |
1861 | void *data, | |
1862 | void *userdata) { | |
1863 | ||
769b56a3 | 1864 | Network *network = userdata; |
fcbf4cb7 | 1865 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
769b56a3 TG |
1866 | int r; |
1867 | ||
1868 | assert(filename); | |
1869 | assert(section); | |
1870 | assert(lvalue); | |
1871 | assert(rvalue); | |
1872 | assert(data); | |
1873 | ||
f4859fc7 | 1874 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1875 | if (r == -ENOMEM) |
1876 | return log_oom(); | |
1877 | if (r < 0) { | |
1878 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1879 | "Failed to allocate route, ignoring assignment: %m"); | |
1880 | return 0; | |
1881 | } | |
769b56a3 | 1882 | |
41b90a1e YW |
1883 | r = route_scope_from_string(rvalue); |
1884 | if (r < 0) { | |
b98680b2 | 1885 | log_syntax(unit, LOG_WARNING, filename, line, r, "Unknown route scope: %s", rvalue); |
769b56a3 TG |
1886 | return 0; |
1887 | } | |
1888 | ||
41b90a1e | 1889 | n->scope = r; |
94d6e299 | 1890 | n->scope_set = true; |
aff44301 | 1891 | TAKE_PTR(n); |
769b56a3 TG |
1892 | return 0; |
1893 | } | |
c953b24c | 1894 | |
27efb52b YW |
1895 | int config_parse_route_table( |
1896 | const char *unit, | |
1897 | const char *filename, | |
1898 | unsigned line, | |
1899 | const char *section, | |
1900 | unsigned section_line, | |
1901 | const char *lvalue, | |
1902 | int ltype, | |
1903 | const char *rvalue, | |
1904 | void *data, | |
1905 | void *userdata) { | |
1906 | ||
fcbf4cb7 | 1907 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
c953b24c | 1908 | Network *network = userdata; |
c953b24c SS |
1909 | int r; |
1910 | ||
1911 | assert(filename); | |
1912 | assert(section); | |
1913 | assert(lvalue); | |
1914 | assert(rvalue); | |
1915 | assert(data); | |
1916 | ||
f4859fc7 | 1917 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
1918 | if (r == -ENOMEM) |
1919 | return log_oom(); | |
1920 | if (r < 0) { | |
1921 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1922 | "Failed to allocate route, ignoring assignment: %m"); | |
1923 | return 0; | |
1924 | } | |
c953b24c | 1925 | |
552b90a2 | 1926 | r = manager_get_route_table_from_string(network->manager, rvalue, &n->table); |
c038ce46 SS |
1927 | if (r < 0) { |
1928 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1929 | "Could not parse route table number \"%s\", ignoring assignment: %m", rvalue); | |
1930 | return 0; | |
c953b24c SS |
1931 | } |
1932 | ||
94d6e299 | 1933 | n->table_set = true; |
aff44301 | 1934 | TAKE_PTR(n); |
c953b24c SS |
1935 | return 0; |
1936 | } | |
28959f7d | 1937 | |
d96edb2c | 1938 | int config_parse_route_boolean( |
27efb52b YW |
1939 | const char *unit, |
1940 | const char *filename, | |
1941 | unsigned line, | |
1942 | const char *section, | |
1943 | unsigned section_line, | |
1944 | const char *lvalue, | |
1945 | int ltype, | |
1946 | const char *rvalue, | |
1947 | void *data, | |
1948 | void *userdata) { | |
1949 | ||
28959f7d | 1950 | Network *network = userdata; |
fcbf4cb7 | 1951 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
28959f7d SS |
1952 | int r; |
1953 | ||
1954 | assert(filename); | |
1955 | assert(section); | |
1956 | assert(lvalue); | |
1957 | assert(rvalue); | |
1958 | assert(data); | |
1959 | ||
1960 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
1961 | if (r == -ENOMEM) |
1962 | return log_oom(); | |
1963 | if (r < 0) { | |
1964 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1965 | "Failed to allocate route, ignoring assignment: %m"); | |
1966 | return 0; | |
1967 | } | |
28959f7d SS |
1968 | |
1969 | r = parse_boolean(rvalue); | |
1970 | if (r < 0) { | |
d96edb2c | 1971 | log_syntax(unit, LOG_WARNING, filename, line, r, |
9cb8c559 | 1972 | "Could not parse %s=\"%s\", ignoring assignment: %m", lvalue, rvalue); |
28959f7d SS |
1973 | return 0; |
1974 | } | |
1975 | ||
d96edb2c YW |
1976 | if (STR_IN_SET(lvalue, "GatewayOnLink", "GatewayOnlink")) |
1977 | n->gateway_onlink = r; | |
1978 | else if (streq(lvalue, "QuickAck")) | |
1979 | n->quickack = r; | |
1980 | else if (streq(lvalue, "FastOpenNoCookie")) | |
1981 | n->fast_open_no_cookie = r; | |
1982 | else if (streq(lvalue, "TTLPropagate")) | |
1983 | n->ttl_propagate = r; | |
1984 | else | |
1985 | assert_not_reached("Invalid lvalue"); | |
54901fd2 | 1986 | |
aff44301 | 1987 | TAKE_PTR(n); |
b5bf6f64 SS |
1988 | return 0; |
1989 | } | |
1990 | ||
27efb52b YW |
1991 | int config_parse_ipv6_route_preference( |
1992 | const char *unit, | |
1993 | const char *filename, | |
1994 | unsigned line, | |
1995 | const char *section, | |
1996 | unsigned section_line, | |
1997 | const char *lvalue, | |
1998 | int ltype, | |
1999 | const char *rvalue, | |
2000 | void *data, | |
2001 | void *userdata) { | |
2002 | ||
b5bf6f64 | 2003 | Network *network = userdata; |
fcbf4cb7 | 2004 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
b5bf6f64 SS |
2005 | int r; |
2006 | ||
4c7bd9cf | 2007 | r = route_new_static(network, filename, section_line, &n); |
d96edb2c YW |
2008 | if (r == -ENOMEM) |
2009 | return log_oom(); | |
2010 | if (r < 0) { | |
2011 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2012 | "Failed to allocate route, ignoring assignment: %m"); | |
2013 | return 0; | |
2014 | } | |
4c7bd9cf | 2015 | |
b5bf6f64 SS |
2016 | if (streq(rvalue, "low")) |
2017 | n->pref = ICMPV6_ROUTER_PREF_LOW; | |
2018 | else if (streq(rvalue, "medium")) | |
2019 | n->pref = ICMPV6_ROUTER_PREF_MEDIUM; | |
2020 | else if (streq(rvalue, "high")) | |
2021 | n->pref = ICMPV6_ROUTER_PREF_HIGH; | |
2022 | else { | |
d96edb2c | 2023 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown route preference: %s", rvalue); |
b5bf6f64 SS |
2024 | return 0; |
2025 | } | |
28959f7d | 2026 | |
c27abcf4 | 2027 | n->pref_set = true; |
aff44301 | 2028 | TAKE_PTR(n); |
28959f7d SS |
2029 | return 0; |
2030 | } | |
c83ecc04 | 2031 | |
27efb52b YW |
2032 | int config_parse_route_protocol( |
2033 | const char *unit, | |
2034 | const char *filename, | |
2035 | unsigned line, | |
2036 | const char *section, | |
2037 | unsigned section_line, | |
2038 | const char *lvalue, | |
2039 | int ltype, | |
2040 | const char *rvalue, | |
2041 | void *data, | |
2042 | void *userdata) { | |
2043 | ||
c83ecc04 | 2044 | Network *network = userdata; |
fcbf4cb7 | 2045 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
c83ecc04 SS |
2046 | int r; |
2047 | ||
2048 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
2049 | if (r == -ENOMEM) |
2050 | return log_oom(); | |
2051 | if (r < 0) { | |
2052 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2053 | "Failed to allocate route, ignoring assignment: %m"); | |
2054 | return 0; | |
2055 | } | |
c83ecc04 | 2056 | |
1b64651b | 2057 | r = route_protocol_from_string(rvalue); |
e4ffe103 YW |
2058 | if (r < 0) { |
2059 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2060 | "Failed to parse route protocol \"%s\", ignoring assignment: %m", rvalue); | |
2061 | return 0; | |
c83ecc04 SS |
2062 | } |
2063 | ||
e4ffe103 YW |
2064 | n->protocol = r; |
2065 | ||
aff44301 | 2066 | TAKE_PTR(n); |
c83ecc04 SS |
2067 | return 0; |
2068 | } | |
983226f3 | 2069 | |
27efb52b YW |
2070 | int config_parse_route_type( |
2071 | const char *unit, | |
2072 | const char *filename, | |
2073 | unsigned line, | |
2074 | const char *section, | |
2075 | unsigned section_line, | |
2076 | const char *lvalue, | |
2077 | int ltype, | |
2078 | const char *rvalue, | |
2079 | void *data, | |
2080 | void *userdata) { | |
2081 | ||
983226f3 | 2082 | Network *network = userdata; |
fcbf4cb7 | 2083 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
7a22312d | 2084 | int t, r; |
983226f3 SS |
2085 | |
2086 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
2087 | if (r == -ENOMEM) |
2088 | return log_oom(); | |
2089 | if (r < 0) { | |
2090 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2091 | "Failed to allocate route, ignoring assignment: %m"); | |
2092 | return 0; | |
2093 | } | |
983226f3 | 2094 | |
7a22312d YW |
2095 | t = route_type_from_string(rvalue); |
2096 | if (t < 0) { | |
b98680b2 | 2097 | log_syntax(unit, LOG_WARNING, filename, line, r, |
f205a92a | 2098 | "Could not parse route type \"%s\", ignoring assignment: %m", rvalue); |
983226f3 SS |
2099 | return 0; |
2100 | } | |
2101 | ||
7a22312d YW |
2102 | n->type = (unsigned char) t; |
2103 | ||
aff44301 | 2104 | TAKE_PTR(n); |
983226f3 SS |
2105 | return 0; |
2106 | } | |
323d9329 | 2107 | |
007cac09 SS |
2108 | int config_parse_tcp_advmss( |
2109 | const char *unit, | |
2110 | const char *filename, | |
2111 | unsigned line, | |
2112 | const char *section, | |
2113 | unsigned section_line, | |
2114 | const char *lvalue, | |
2115 | int ltype, | |
2116 | const char *rvalue, | |
2117 | void *data, | |
2118 | void *userdata) { | |
2119 | ||
2120 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; | |
2121 | Network *network = userdata; | |
2122 | uint64_t u; | |
2123 | int r; | |
2124 | ||
2125 | assert(filename); | |
2126 | assert(section); | |
2127 | assert(lvalue); | |
2128 | assert(rvalue); | |
2129 | assert(data); | |
2130 | ||
2131 | r = route_new_static(network, filename, section_line, &n); | |
2132 | if (r == -ENOMEM) | |
2133 | return log_oom(); | |
2134 | if (r < 0) { | |
2135 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2136 | "Failed to allocate route, ignoring assignment: %m"); | |
2137 | return 0; | |
2138 | } | |
2139 | ||
2140 | if (isempty(rvalue)) { | |
2141 | n->advmss = 0; | |
78ebbf02 | 2142 | TAKE_PTR(n); |
007cac09 SS |
2143 | return 0; |
2144 | } | |
2145 | ||
2146 | r = parse_size(rvalue, 1024, &u); | |
2147 | if (r < 0) { | |
2148 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2149 | "Could not parse TCPAdvertisedMaximumSegmentSize= \"%s\", ignoring assignment: %m", rvalue); | |
2150 | return 0; | |
2151 | } | |
2152 | ||
2153 | if (u == 0 || u > UINT32_MAX) { | |
2154 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
2155 | "Invalid TCPAdvertisedMaximumSegmentSize= \"%s\", ignoring assignment: %m", rvalue); | |
2156 | return 0; | |
2157 | } | |
2158 | ||
2159 | n->advmss = u; | |
2160 | ||
2161 | TAKE_PTR(n); | |
2162 | return 0; | |
2163 | } | |
2164 | ||
27efb52b YW |
2165 | int config_parse_tcp_window( |
2166 | const char *unit, | |
2167 | const char *filename, | |
2168 | unsigned line, | |
2169 | const char *section, | |
2170 | unsigned section_line, | |
2171 | const char *lvalue, | |
2172 | int ltype, | |
2173 | const char *rvalue, | |
2174 | void *data, | |
2175 | void *userdata) { | |
2176 | ||
fcbf4cb7 | 2177 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
6b21ad33 | 2178 | Network *network = userdata; |
fef160b5 | 2179 | uint32_t k; |
323d9329 SS |
2180 | int r; |
2181 | ||
2182 | assert(filename); | |
2183 | assert(section); | |
2184 | assert(lvalue); | |
2185 | assert(rvalue); | |
2186 | assert(data); | |
2187 | ||
2188 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
2189 | if (r == -ENOMEM) |
2190 | return log_oom(); | |
2191 | if (r < 0) { | |
2192 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2193 | "Failed to allocate route, ignoring assignment: %m"); | |
2194 | return 0; | |
2195 | } | |
323d9329 | 2196 | |
fef160b5 | 2197 | r = safe_atou32(rvalue, &k); |
f205a92a | 2198 | if (r < 0) { |
d96edb2c | 2199 | log_syntax(unit, LOG_WARNING, filename, line, r, |
f205a92a YW |
2200 | "Could not parse TCP %s \"%s\", ignoring assignment: %m", lvalue, rvalue); |
2201 | return 0; | |
2202 | } | |
fef160b5 | 2203 | if (k >= 1024) { |
d96edb2c | 2204 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
f205a92a | 2205 | "Specified TCP %s \"%s\" is too large, ignoring assignment: %m", lvalue, rvalue); |
323d9329 SS |
2206 | return 0; |
2207 | } | |
fd9d7de1 SS |
2208 | if (k == 0) { |
2209 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
2210 | "Invalid TCP %s \"%s\", ignoring assignment: %m", lvalue, rvalue); | |
2211 | return 0; | |
2212 | } | |
323d9329 SS |
2213 | |
2214 | if (streq(lvalue, "InitialCongestionWindow")) | |
2215 | n->initcwnd = k; | |
2216 | else if (streq(lvalue, "InitialAdvertisedReceiveWindow")) | |
2217 | n->initrwnd = k; | |
f205a92a YW |
2218 | else |
2219 | assert_not_reached("Invalid TCP window type."); | |
323d9329 | 2220 | |
aff44301 | 2221 | TAKE_PTR(n); |
323d9329 SS |
2222 | return 0; |
2223 | } | |
09f5dfad | 2224 | |
cea79e66 SS |
2225 | int config_parse_route_mtu( |
2226 | const char *unit, | |
2227 | const char *filename, | |
2228 | unsigned line, | |
2229 | const char *section, | |
2230 | unsigned section_line, | |
2231 | const char *lvalue, | |
2232 | int ltype, | |
2233 | const char *rvalue, | |
2234 | void *data, | |
2235 | void *userdata) { | |
2236 | ||
2237 | Network *network = userdata; | |
fcbf4cb7 | 2238 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; |
cea79e66 SS |
2239 | int r; |
2240 | ||
2241 | assert(filename); | |
2242 | assert(section); | |
2243 | assert(lvalue); | |
2244 | assert(rvalue); | |
2245 | assert(data); | |
2246 | ||
2247 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
2248 | if (r == -ENOMEM) |
2249 | return log_oom(); | |
2250 | if (r < 0) { | |
2251 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2252 | "Failed to allocate route, ignoring assignment: %m"); | |
2253 | return 0; | |
2254 | } | |
cea79e66 SS |
2255 | |
2256 | r = config_parse_mtu(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &n->mtu, userdata); | |
2257 | if (r < 0) | |
2258 | return r; | |
2259 | ||
aff44301 | 2260 | TAKE_PTR(n); |
cea79e66 SS |
2261 | return 0; |
2262 | } | |
fcbf4cb7 | 2263 | |
6ff5cc6b YW |
2264 | int config_parse_multipath_route( |
2265 | const char *unit, | |
2266 | const char *filename, | |
2267 | unsigned line, | |
2268 | const char *section, | |
2269 | unsigned section_line, | |
2270 | const char *lvalue, | |
2271 | int ltype, | |
2272 | const char *rvalue, | |
2273 | void *data, | |
2274 | void *userdata) { | |
2275 | ||
2276 | _cleanup_(route_free_or_set_invalidp) Route *n = NULL; | |
2277 | _cleanup_free_ char *word = NULL, *buf = NULL; | |
2278 | _cleanup_free_ MultipathRoute *m = NULL; | |
2279 | Network *network = userdata; | |
2280 | const char *p, *ip, *dev; | |
2281 | union in_addr_union a; | |
2282 | int family, r; | |
2283 | ||
2284 | assert(filename); | |
2285 | assert(section); | |
2286 | assert(lvalue); | |
2287 | assert(rvalue); | |
2288 | assert(data); | |
2289 | ||
2290 | r = route_new_static(network, filename, section_line, &n); | |
d96edb2c YW |
2291 | if (r == -ENOMEM) |
2292 | return log_oom(); | |
2293 | if (r < 0) { | |
2294 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2295 | "Failed to allocate route, ignoring assignment: %m"); | |
2296 | return 0; | |
2297 | } | |
6ff5cc6b YW |
2298 | |
2299 | if (isempty(rvalue)) { | |
2300 | n->multipath_routes = ordered_set_free_free(n->multipath_routes); | |
2301 | return 0; | |
2302 | } | |
2303 | ||
2304 | m = new0(MultipathRoute, 1); | |
2305 | if (!m) | |
2306 | return log_oom(); | |
2307 | ||
2308 | p = rvalue; | |
2309 | r = extract_first_word(&p, &word, NULL, 0); | |
2310 | if (r == -ENOMEM) | |
2311 | return log_oom(); | |
2312 | if (r <= 0) { | |
d96edb2c | 2313 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
2314 | "Invalid multipath route option, ignoring assignment: %s", rvalue); |
2315 | return 0; | |
2316 | } | |
2317 | ||
2318 | dev = strchr(word, '@'); | |
2319 | if (dev) { | |
2320 | buf = strndup(word, dev - word); | |
2321 | if (!buf) | |
2322 | return log_oom(); | |
2323 | ip = buf; | |
2324 | dev++; | |
2325 | } else | |
2326 | ip = word; | |
2327 | ||
2328 | r = in_addr_from_string_auto(ip, &family, &a); | |
2329 | if (r < 0) { | |
d96edb2c | 2330 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
2331 | "Invalid multipath route gateway '%s', ignoring assignment: %m", rvalue); |
2332 | return 0; | |
2333 | } | |
2334 | m->gateway.address = a; | |
2335 | m->gateway.family = family; | |
2336 | ||
2337 | if (dev) { | |
d308bb99 | 2338 | r = resolve_interface(NULL, dev); |
6ff5cc6b | 2339 | if (r < 0) { |
d96edb2c | 2340 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
2341 | "Invalid interface name or index, ignoring assignment: %s", dev); |
2342 | return 0; | |
2343 | } | |
597da51b | 2344 | m->ifindex = r; |
6ff5cc6b YW |
2345 | } |
2346 | ||
2347 | if (!isempty(p)) { | |
2348 | r = safe_atou32(p, &m->weight); | |
2349 | if (r < 0) { | |
d96edb2c | 2350 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
2351 | "Invalid multipath route weight, ignoring assignment: %s", p); |
2352 | return 0; | |
2353 | } | |
2354 | if (m->weight == 0 || m->weight > 256) { | |
d96edb2c | 2355 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
6ff5cc6b YW |
2356 | "Invalid multipath route weight, ignoring assignment: %s", p); |
2357 | return 0; | |
2358 | } | |
2359 | } | |
2360 | ||
8cb34651 SS |
2361 | r = ordered_set_ensure_put(&n->multipath_routes, NULL, m); |
2362 | if (r == -ENOMEM) | |
6ff5cc6b | 2363 | return log_oom(); |
6ff5cc6b | 2364 | if (r < 0) { |
d96edb2c | 2365 | log_syntax(unit, LOG_WARNING, filename, line, r, |
6ff5cc6b YW |
2366 | "Failed to store multipath route, ignoring assignment: %m"); |
2367 | return 0; | |
2368 | } | |
2369 | ||
2370 | TAKE_PTR(m); | |
2371 | TAKE_PTR(n); | |
2372 | return 0; | |
2373 | } | |
2374 | ||
c038ce46 SS |
2375 | int config_parse_route_table_names( |
2376 | const char *unit, | |
2377 | const char *filename, | |
2378 | unsigned line, | |
2379 | const char *section, | |
2380 | unsigned section_line, | |
2381 | const char *lvalue, | |
2382 | int ltype, | |
2383 | const char *rvalue, | |
2384 | void *data, | |
2385 | void *userdata) { | |
2386 | ||
552b90a2 | 2387 | Manager *m = userdata; |
c038ce46 SS |
2388 | int r; |
2389 | ||
2390 | assert(filename); | |
2391 | assert(lvalue); | |
2392 | assert(rvalue); | |
552b90a2 | 2393 | assert(userdata); |
c038ce46 SS |
2394 | |
2395 | if (isempty(rvalue)) { | |
552b90a2 YW |
2396 | m->route_table_names_by_number = hashmap_free(m->route_table_names_by_number); |
2397 | m->route_table_numbers_by_name = hashmap_free(m->route_table_numbers_by_name); | |
c038ce46 SS |
2398 | return 0; |
2399 | } | |
2400 | ||
310eff72 YW |
2401 | for (const char *p = rvalue;;) { |
2402 | _cleanup_free_ char *name = NULL; | |
2403 | uint32_t table; | |
2404 | char *num; | |
c038ce46 | 2405 | |
310eff72 YW |
2406 | r = extract_first_word(&p, &name, NULL, 0); |
2407 | if (r == -ENOMEM) | |
2408 | return log_oom(); | |
2409 | if (r < 0) { | |
2410 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2411 | "Invalid RouteTable=, ignoring assignment: %s", rvalue); | |
2412 | return 0; | |
2413 | } | |
2414 | if (r == 0) | |
2415 | return 0; | |
c038ce46 | 2416 | |
310eff72 YW |
2417 | num = strchr(name, ':'); |
2418 | if (!num) { | |
2419 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
2420 | "Invalid route table name and number pair, ignoring assignment: %s", name); | |
2421 | continue; | |
2422 | } | |
c038ce46 | 2423 | |
310eff72 | 2424 | *num++ = '\0'; |
c038ce46 | 2425 | |
310eff72 YW |
2426 | if (STR_IN_SET(name, "default", "main", "local")) { |
2427 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
2428 | "Route table name %s already predefined. Ignoring assignment: %s:%s", name, name, num); | |
2429 | continue; | |
2430 | } | |
c038ce46 | 2431 | |
310eff72 YW |
2432 | r = safe_atou32(num, &table); |
2433 | if (r < 0) { | |
2434 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2435 | "Failed to parse route table number '%s', ignoring assignment: %s:%s", num, name, num); | |
2436 | continue; | |
2437 | } | |
2438 | if (table == 0) { | |
2439 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
2440 | "Invalid route table number, ignoring assignment: %s:%s", name, num); | |
2441 | continue; | |
2442 | } | |
2443 | ||
552b90a2 | 2444 | r = hashmap_ensure_put(&m->route_table_numbers_by_name, &string_hash_ops_free, name, UINT32_TO_PTR(table)); |
310eff72 YW |
2445 | if (r == -ENOMEM) |
2446 | return log_oom(); | |
2447 | if (r == -EEXIST) { | |
2448 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2449 | "Specified route table name and number pair conflicts with others, ignoring assignment: %s:%s", name, num); | |
2450 | continue; | |
2451 | } | |
2452 | if (r < 0) { | |
2453 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2454 | "Failed to store route table name and number pair, ignoring assignment: %s:%s", name, num); | |
2455 | continue; | |
2456 | } | |
552b90a2 YW |
2457 | if (r == 0) |
2458 | /* The entry is duplicated. It should not be added to route_table_names_by_number hashmap. */ | |
2459 | continue; | |
2460 | ||
2461 | r = hashmap_ensure_put(&m->route_table_names_by_number, NULL, UINT32_TO_PTR(table), name); | |
2462 | if (r < 0) { | |
2463 | hashmap_remove(m->route_table_numbers_by_name, name); | |
2464 | ||
2465 | if (r == -ENOMEM) | |
2466 | return log_oom(); | |
2467 | if (r == -EEXIST) | |
2468 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2469 | "Specified route table name and number pair conflicts with others, ignoring assignment: %s:%s", name, num); | |
2470 | else | |
2471 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2472 | "Failed to store route table name and number pair, ignoring assignment: %s:%s", name, num); | |
2473 | continue; | |
2474 | } | |
2475 | assert(r > 0); | |
2476 | ||
2477 | TAKE_PTR(name); | |
310eff72 | 2478 | } |
c038ce46 SS |
2479 | } |
2480 | ||
d9940a3f | 2481 | static int route_section_verify(Route *route, Network *network) { |
fcbf4cb7 YW |
2482 | if (section_is_invalid(route->section)) |
2483 | return -EINVAL; | |
2484 | ||
956dbf36 | 2485 | if (route->gateway_from_dhcp_or_ra) { |
c3d679c4 YW |
2486 | if (route->gw_family == AF_UNSPEC) { |
2487 | /* When deprecated Gateway=_dhcp is set, then assume gateway family based on other settings. */ | |
2488 | switch (route->family) { | |
2489 | case AF_UNSPEC: | |
2490 | log_warning("%s: Deprecated value \"_dhcp\" is specified for Gateway= in [Route] section from line %u. " | |
2491 | "Please use \"_dhcp4\" or \"_ipv6ra\" instead. Assuming \"_dhcp4\".", | |
2492 | route->section->filename, route->section->line); | |
2493 | route->family = AF_INET; | |
2494 | break; | |
2495 | case AF_INET: | |
2496 | case AF_INET6: | |
2497 | log_warning("%s: Deprecated value \"_dhcp\" is specified for Gateway= in [Route] section from line %u. " | |
2498 | "Assuming \"%s\" based on Destination=, Source=, or PreferredSource= setting.", | |
2499 | route->section->filename, route->section->line, route->family == AF_INET ? "_dhcp4" : "_ipv6ra"); | |
2500 | break; | |
2501 | default: | |
2502 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
2503 | "%s: Invalid route family. Ignoring [Route] section from line %u.", | |
2504 | route->section->filename, route->section->line); | |
2505 | } | |
2506 | route->gw_family = route->family; | |
2507 | } | |
2508 | ||
956dbf36 YW |
2509 | if (route->gw_family == AF_INET && !FLAGS_SET(network->dhcp, ADDRESS_FAMILY_IPV4)) |
2510 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
2511 | "%s: Gateway=\"_dhcp4\" is specified but DHCPv4 client is disabled. " | |
2512 | "Ignoring [Route] section from line %u.", | |
2513 | route->section->filename, route->section->line); | |
2514 | ||
2515 | if (route->gw_family == AF_INET6 && !network->ipv6_accept_ra) | |
2516 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
2517 | "%s: Gateway=\"_ipv6ra\" is specified but IPv6AcceptRA= is disabled. " | |
2518 | "Ignoring [Route] section from line %u.", | |
2519 | route->section->filename, route->section->line); | |
2520 | } | |
2521 | ||
c3d679c4 | 2522 | /* When only Gateway= is specified, assume the route family based on the Gateway address. */ |
6dd53981 YW |
2523 | if (route->family == AF_UNSPEC) |
2524 | route->family = route->gw_family; | |
2525 | ||
fcbf4cb7 YW |
2526 | if (route->family == AF_UNSPEC) { |
2527 | assert(route->section); | |
2528 | ||
c3d679c4 YW |
2529 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), |
2530 | "%s: Route section without Gateway=, Destination=, Source=, " | |
2531 | "or PreferredSource= field configured. " | |
2532 | "Ignoring [Route] section from line %u.", | |
2533 | route->section->filename, route->section->line); | |
fcbf4cb7 YW |
2534 | } |
2535 | ||
6dd53981 YW |
2536 | if (route->family == AF_INET6 && route->gw_family == AF_INET) |
2537 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
2538 | "%s: IPv4 gateway is configured for IPv6 route. " | |
2539 | "Ignoring [Route] section from line %u.", | |
2540 | route->section->filename, route->section->line); | |
2541 | ||
c0d48bc5 YW |
2542 | if (!route->table_set && network->vrf) { |
2543 | route->table = VRF(network->vrf)->table; | |
2544 | route->table_set = true; | |
2545 | } | |
2546 | ||
f5c38922 YW |
2547 | if (!route->table_set && IN_SET(route->type, RTN_LOCAL, RTN_BROADCAST, RTN_ANYCAST, RTN_NAT)) |
2548 | route->table = RT_TABLE_LOCAL; | |
2549 | ||
2550 | if (!route->scope_set && route->family != AF_INET6) { | |
2551 | if (IN_SET(route->type, RTN_LOCAL, RTN_NAT)) | |
2552 | route->scope = RT_SCOPE_HOST; | |
2553 | else if (IN_SET(route->type, RTN_BROADCAST, RTN_ANYCAST, RTN_MULTICAST)) | |
2554 | route->scope = RT_SCOPE_LINK; | |
94d6e299 YW |
2555 | } |
2556 | ||
fd7701bf YW |
2557 | if (route->scope != RT_SCOPE_UNIVERSE && route->family == AF_INET6) { |
2558 | log_warning("%s: Scope= is specified for IPv6 route. It will be ignored.", route->section->filename); | |
2559 | route->scope = RT_SCOPE_UNIVERSE; | |
2560 | } | |
2561 | ||
8973df5c YW |
2562 | if (route->family == AF_INET6 && route->priority == 0) |
2563 | route->priority = IP6_RT_PRIO_USER; | |
2564 | ||
9cd9fc8f | 2565 | if (ordered_hashmap_isempty(network->addresses_by_section) && |
94876904 | 2566 | in_addr_is_set(route->gw_family, &route->gw) && |
fcbf4cb7 YW |
2567 | route->gateway_onlink < 0) { |
2568 | log_warning("%s: Gateway= without static address configured. " | |
2569 | "Enabling GatewayOnLink= option.", | |
2570 | network->filename); | |
2571 | route->gateway_onlink = true; | |
2572 | } | |
2573 | ||
40785f53 YW |
2574 | if (route->family == AF_INET6) { |
2575 | MultipathRoute *m; | |
2576 | ||
2577 | ORDERED_SET_FOREACH(m, route->multipath_routes) | |
2578 | if (m->gateway.family == AF_INET) | |
2579 | return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), | |
2580 | "%s: IPv4 multipath route is specified for IPv6 route. " | |
2581 | "Ignoring [Route] section from line %u.", | |
2582 | route->section->filename, route->section->line); | |
2583 | } | |
2584 | ||
fcbf4cb7 YW |
2585 | return 0; |
2586 | } | |
d9940a3f | 2587 | |
13ffa39f | 2588 | void network_drop_invalid_routes(Network *network) { |
2a54a044 | 2589 | Route *route; |
d9940a3f YW |
2590 | |
2591 | assert(network); | |
2592 | ||
2a54a044 | 2593 | HASHMAP_FOREACH(route, network->routes_by_section) |
d9940a3f YW |
2594 | if (route_section_verify(route, network) < 0) |
2595 | route_free(route); | |
2596 | } |