2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
19 #include <arpa/inet.h>
23 #include "interface.h"
24 #include "interface-ip.h"
40 static const struct blobmsg_policy route_attr[__ROUTE_MAX] = {
41 [ROUTE_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
42 [ROUTE_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
43 [ROUTE_MASK] = { .name = "netmask", .type = BLOBMSG_TYPE_STRING },
44 [ROUTE_GATEWAY] = { .name = "gateway", .type = BLOBMSG_TYPE_STRING },
45 [ROUTE_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
46 [ROUTE_MTU] = { .name = "mtu", .type = BLOBMSG_TYPE_INT32 },
47 [ROUTE_VALID] = { .name = "valid", .type = BLOBMSG_TYPE_INT32 },
50 const struct config_param_list route_attr_list = {
51 .n_params = __ROUTE_MAX,
56 struct list_head prefixes = LIST_HEAD_INIT(prefixes);
57 static struct device_prefix *ula_prefix = NULL;
58 static struct uloop_timeout valid_until_timeout;
62 clear_if_addr(union if_addr *a, int mask)
64 int m_bytes = (mask + 7) / 8;
65 uint8_t m_clear = (1 << (m_bytes * 8 - mask)) - 1;
66 uint8_t *p = (uint8_t *) a;
68 if (m_bytes < sizeof(a))
69 memset(p + m_bytes, 0, sizeof(a) - m_bytes);
71 p[m_bytes - 1] &= ~m_clear;
75 match_if_addr(union if_addr *a1, union if_addr *a2, int mask)
77 union if_addr *p1, *p2;
79 p1 = alloca(sizeof(*a1));
80 p2 = alloca(sizeof(*a2));
82 memcpy(p1, a1, sizeof(*a1));
83 clear_if_addr(p1, mask);
84 memcpy(p2, a2, sizeof(*a2));
85 clear_if_addr(p2, mask);
87 return !memcmp(p1, p2, sizeof(*p1));
91 __find_ip_addr_target(struct interface_ip_settings *ip, union if_addr *a, bool v6)
93 struct device_addr *addr;
95 vlist_for_each_element(&ip->addr, addr, node) {
99 if (v6 != ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET6))
102 if (!match_if_addr(&addr->addr, a, addr->mask))
112 __find_ip_route_target(struct interface_ip_settings *ip, union if_addr *a,
113 bool v6, struct device_route **res)
115 struct device_route *route;
117 vlist_for_each_element(&ip->route, route, node) {
121 if (v6 != ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET6))
124 if (!match_if_addr(&route->addr, a, route->mask))
127 if (!*res || route->mask < (*res)->mask)
133 interface_ip_find_addr_target(struct interface *iface, union if_addr *a, bool v6)
135 return __find_ip_addr_target(&iface->proto_ip, a, v6) ||
136 __find_ip_addr_target(&iface->config_ip, a, v6);
140 interface_ip_find_route_target(struct interface *iface, union if_addr *a,
141 bool v6, struct device_route **route)
143 __find_ip_route_target(&iface->proto_ip, a, v6, route);
144 __find_ip_route_target(&iface->config_ip, a, v6, route);
148 interface_ip_add_target_route(union if_addr *addr, bool v6)
150 struct interface *iface;
151 struct device_route *route, *r_next = NULL;
152 bool defaultroute_target = false;
153 int addrsize = v6 ? sizeof(addr->in6) : sizeof(addr->in);
155 route = calloc(1, sizeof(*route));
159 route->flags = v6 ? DEVADDR_INET6 : DEVADDR_INET4;
160 route->mask = v6 ? 128 : 32;
161 if (memcmp(&route->addr, addr, addrsize) == 0)
162 defaultroute_target = true;
164 memcpy(&route->addr, addr, addrsize);
166 vlist_for_each_element(&interfaces, iface, node) {
167 /* look for locally addressable target first */
168 if (interface_ip_find_addr_target(iface, addr, v6))
171 /* do not stop at the first route, let the lookup compare
172 * masks to find the best match */
173 interface_ip_find_route_target(iface, addr, v6, &r_next);
181 iface = r_next->iface;
182 memcpy(&route->nexthop, &r_next->nexthop, sizeof(route->nexthop));
183 route->mtu = r_next->mtu;
184 route->metric = r_next->metric;
187 route->iface = iface;
188 if (defaultroute_target)
191 vlist_add(&iface->host_routes, &route->node, &route->flags);
196 interface_ip_add_route(struct interface *iface, struct blob_attr *attr, bool v6)
198 struct interface_ip_settings *ip;
199 struct blob_attr *tb[__ROUTE_MAX], *cur;
200 struct device_route *route;
201 int af = v6 ? AF_INET6 : AF_INET;
203 blobmsg_parse(route_attr, __ROUTE_MAX, tb, blobmsg_data(attr), blobmsg_data_len(attr));
206 if ((cur = tb[ROUTE_INTERFACE]) == NULL)
209 iface = vlist_find(&interfaces, blobmsg_data(cur), iface, node);
213 ip = &iface->config_ip;
215 ip = &iface->proto_ip;
218 route = calloc(1, sizeof(*route));
222 route->flags = v6 ? DEVADDR_INET6 : DEVADDR_INET4;
223 route->mask = v6 ? 128 : 32;
224 if ((cur = tb[ROUTE_MASK]) != NULL) {
225 route->mask = parse_netmask_string(blobmsg_data(cur), v6);
226 if (route->mask > (v6 ? 128 : 32))
230 if ((cur = tb[ROUTE_TARGET]) != NULL) {
231 if (!parse_ip_and_netmask(af, blobmsg_data(cur), &route->addr, &route->mask)) {
232 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur));
237 if ((cur = tb[ROUTE_GATEWAY]) != NULL) {
238 if (!inet_pton(af, blobmsg_data(cur), &route->nexthop)) {
239 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur));
244 if ((cur = tb[ROUTE_METRIC]) != NULL) {
245 route->metric = blobmsg_get_u32(cur);
246 route->flags |= DEVROUTE_METRIC;
249 if ((cur = tb[ROUTE_MTU]) != NULL) {
250 route->mtu = blobmsg_get_u32(cur);
251 route->flags |= DEVROUTE_MTU;
254 if ((cur = tb[ROUTE_VALID]) != NULL)
255 route->valid_until = system_get_rtime() + blobmsg_get_u32(cur);
257 vlist_add(&ip->route, &route->node, &route->flags);
265 addr_cmp(const void *k1, const void *k2, void *ptr)
267 return memcmp(k1, k2, sizeof(struct device_addr) -
268 offsetof(struct device_addr, flags));
272 route_cmp(const void *k1, const void *k2, void *ptr)
274 return memcmp(k1, k2, sizeof(struct device_route) -
275 offsetof(struct device_route, flags));
279 prefix_cmp(const void *k1, const void *k2, void *ptr)
281 return memcmp(k1, k2, sizeof(struct device_prefix) -
282 offsetof(struct device_prefix, addr));
286 interface_handle_subnet_route(struct interface *iface, struct device_addr *addr, bool add)
288 struct device *dev = iface->l3_dev.dev;
289 struct device_route route;
291 memset(&route, 0, sizeof(route));
293 route.flags = addr->flags;
294 route.mask = addr->mask;
295 memcpy(&route.addr, &addr->addr, sizeof(route.addr));
296 clear_if_addr(&route.addr, route.mask);
299 route.flags |= DEVADDR_KERNEL;
300 system_del_route(dev, &route);
302 if (!(addr->flags & DEVADDR_OFFLINK)) {
303 route.flags &= ~DEVADDR_KERNEL;
304 route.metric = iface->metric;
305 system_add_route(dev, &route);
308 if (!(addr->flags & DEVADDR_OFFLINK))
309 system_del_route(dev, &route);
314 interface_update_proto_addr(struct vlist_tree *tree,
315 struct vlist_node *node_new,
316 struct vlist_node *node_old)
318 struct interface_ip_settings *ip;
319 struct interface *iface;
321 struct device_addr *a_new = NULL, *a_old = NULL;
324 ip = container_of(tree, struct interface_ip_settings, addr);
326 dev = iface->l3_dev.dev;
329 a_new = container_of(node_new, struct device_addr, node);
331 if ((a_new->flags & DEVADDR_FAMILY) == DEVADDR_INET4 &&
335 uint32_t *a = (uint32_t *) &a_new->addr;
337 mask >>= a_new->mask;
338 a_new->broadcast = *a | htonl(mask);
343 a_old = container_of(node_old, struct device_addr, node);
345 if (a_new && a_old) {
348 if (a_old->flags != a_new->flags ||
349 a_old->valid_until != a_new->valid_until ||
350 a_old->preferred_until != a_new->preferred_until)
353 if ((a_new->flags & DEVADDR_FAMILY) == DEVADDR_INET4 &&
354 a_new->broadcast != a_old->broadcast)
359 if (!(a_old->flags & DEVADDR_EXTERNAL) && a_old->enabled && !keep) {
360 interface_handle_subnet_route(iface, a_old, false);
361 system_del_address(dev, a_old);
367 a_new->enabled = true;
368 if (!(a_new->flags & DEVADDR_EXTERNAL) && !keep) {
369 system_add_address(dev, a_new);
370 if ((a_new->flags & DEVADDR_OFFLINK) || iface->metric)
371 interface_handle_subnet_route(iface, a_new, true);
377 enable_route(struct interface_ip_settings *ip, struct device_route *route)
379 if (ip->no_defaultroute && !route->mask)
386 interface_update_proto_route(struct vlist_tree *tree,
387 struct vlist_node *node_new,
388 struct vlist_node *node_old)
390 struct interface_ip_settings *ip;
391 struct interface *iface;
393 struct device_route *route_old, *route_new;
396 ip = container_of(tree, struct interface_ip_settings, route);
398 dev = iface->l3_dev.dev;
400 route_old = container_of(node_old, struct device_route, node);
401 route_new = container_of(node_new, struct device_route, node);
403 if (node_old && node_new)
404 keep = !memcmp(&route_old->nexthop, &route_new->nexthop, sizeof(route_old->nexthop));
407 if (!(route_old->flags & DEVADDR_EXTERNAL) && route_old->enabled && !keep)
408 system_del_route(dev, route_old);
413 bool _enabled = enable_route(ip, route_new);
415 if (!(route_new->flags & DEVROUTE_METRIC))
416 route_new->metric = iface->metric;
418 if (!(route_new->flags & DEVADDR_EXTERNAL) && !keep && _enabled)
419 system_add_route(dev, route_new);
421 route_new->iface = iface;
422 route_new->enabled = _enabled;
427 interface_update_host_route(struct vlist_tree *tree,
428 struct vlist_node *node_new,
429 struct vlist_node *node_old)
431 struct interface *iface;
433 struct device_route *route_old, *route_new;
435 iface = container_of(tree, struct interface, host_routes);
436 dev = iface->l3_dev.dev;
438 route_old = container_of(node_old, struct device_route, node);
439 route_new = container_of(node_new, struct device_route, node);
442 system_del_route(dev, route_old);
447 system_add_route(dev, route_new);
452 interface_set_prefix_address(struct device_prefix_assignment *assignment,
453 const struct device_prefix *prefix, struct interface *iface, bool add)
455 const struct interface *uplink = prefix->iface;
456 if (!iface->l3_dev.dev)
459 struct device *l3_downlink = iface->l3_dev.dev;
461 struct device_addr addr;
462 memset(&addr, 0, sizeof(addr));
463 addr.addr.in6 = prefix->addr;
464 addr.addr.in6.s6_addr32[1] |= htonl(assignment->assigned);
465 addr.addr.in6.s6_addr[15] += 1;
466 addr.mask = assignment->length;
467 addr.flags = DEVADDR_INET6;
468 addr.preferred_until = prefix->preferred_until;
469 addr.valid_until = prefix->valid_until;
471 if (!add && assignment->enabled) {
472 time_t now = system_get_rtime();
473 addr.preferred_until = now;
474 if (!addr.valid_until || addr.valid_until - now > 7200)
475 addr.valid_until = now + 7200;
476 system_add_address(l3_downlink, &addr);
477 assignment->enabled = false;
478 } else if (add && (iface->state == IFS_UP || iface->state == IFS_SETUP)) {
479 system_add_address(l3_downlink, &addr);
480 if (uplink && uplink->l3_dev.dev) {
481 int mtu = system_update_ipv6_mtu(
482 uplink->l3_dev.dev, 0);
484 system_update_ipv6_mtu(l3_downlink, mtu);
486 assignment->enabled = true;
490 static bool interface_prefix_assign(struct list_head *list,
491 struct device_prefix_assignment *assign)
493 int32_t current = 0, asize = (1 << (64 - assign->length)) - 1;
494 struct device_prefix_assignment *c;
495 list_for_each_entry(c, list, head) {
496 if (assign->assigned != -1) {
497 if (assign->assigned > current && assign->assigned + asize < c->assigned) {
498 list_add_tail(&assign->head, &c->head);
501 } else if (assign->assigned == -1) {
502 current = (current + asize) & (~asize);
503 if (current + asize < c->assigned) {
504 assign->assigned = current;
505 list_add_tail(&assign->head, &c->head);
509 current = (c->assigned + (1 << (64 - c->length)));
514 static void interface_update_prefix_assignments(struct device_prefix *prefix, bool setup)
516 struct device_prefix_assignment *c;
517 struct interface *iface;
519 // Delete all assignments
520 while (!list_empty(&prefix->assignments)) {
521 c = list_first_entry(&prefix->assignments,
522 struct device_prefix_assignment, head);
523 if ((iface = vlist_find(&interfaces, c->name, iface, node)))
524 interface_set_prefix_address(c, prefix, iface, false);
532 // End-of-assignment sentinel
533 c = malloc(sizeof(*c) + 1);
534 c->assigned = 1 << (64 - prefix->length);
537 list_add(&c->head, &prefix->assignments);
540 if (prefix->excl_length > 0) {
541 const char name[] = "!excluded";
542 c = malloc(sizeof(*c) + sizeof(name));
543 c->assigned = ntohl(prefix->excl_addr.s6_addr32[1]) &
544 ((1 << (64 - prefix->length)) - 1);
545 c->length = prefix->excl_length;
546 memcpy(c->name, name, sizeof(name));
547 list_add(&c->head, &prefix->assignments);
550 struct list_head assign_later = LIST_HEAD_INIT(assign_later);
551 vlist_for_each_element(&interfaces, iface, node) {
552 if (iface->config_ip.assignment_length < 48 ||
553 iface->config_ip.assignment_length > 64)
556 size_t namelen = strlen(iface->name) + 1;
557 c = malloc(sizeof(*c) + namelen);
558 c->length = iface->config_ip.assignment_length;
559 c->assigned = iface->config_ip.assignment_hint;
561 memcpy(c->name, iface->name, namelen);
563 // First process all custom assignments, put all others in later-list
564 if (c->assigned == -1 || !interface_prefix_assign(&prefix->assignments, c)) {
565 if (c->assigned != -1) {
567 netifd_log_message(L_WARNING, "Failed to assign requested subprefix "
568 "of size %hhu for %s, trying other\n", c->length, c->name);
570 list_add_tail(&c->head, &assign_later);
574 // Then try to assign all other + failed custom assignments
575 while (!list_empty(&assign_later)) {
576 c = list_first_entry(&assign_later, struct device_prefix_assignment, head);
578 if (!interface_prefix_assign(&prefix->assignments, c)) {
579 netifd_log_message(L_WARNING, "Failed to assign subprefix "
580 "of size %hhu for %s\n", c->length, c->name);
585 list_for_each_entry(c, &prefix->assignments, head)
586 if ((iface = vlist_find(&interfaces, c->name, iface, node)))
587 interface_set_prefix_address(c, prefix, iface, true);
591 void interface_refresh_assignments(bool hint)
593 static bool refresh = false;
594 if (!hint && refresh) {
595 struct device_prefix *p;
596 list_for_each_entry(p, &prefixes, head)
597 interface_update_prefix_assignments(p, true);
604 interface_update_prefix(struct vlist_tree *tree,
605 struct vlist_node *node_new,
606 struct vlist_node *node_old)
608 struct device_prefix *prefix_old, *prefix_new;
609 prefix_old = container_of(node_old, struct device_prefix, node);
610 prefix_new = container_of(node_new, struct device_prefix, node);
612 struct device_route route;
613 memset(&route, 0, sizeof(route));
614 route.flags = DEVADDR_INET6;
615 route.metric = INT32_MAX;
616 route.mask = (node_new) ? prefix_new->length : prefix_old->length;
617 route.addr.in6 = (node_new) ? prefix_new->addr : prefix_old->addr;
619 struct device_prefix_assignment *c;
620 struct interface *iface;
622 if (node_old && node_new) {
623 // Move assignments and refresh addresses to update valid times
624 list_splice_init(&prefix_old->assignments, &prefix_new->assignments);
626 list_for_each_entry(c, &prefix_new->assignments, head)
627 if ((iface = vlist_find(&interfaces, c->name, iface, node)))
628 interface_set_prefix_address(c, prefix_new, iface, true);
629 } else if (node_new) {
630 // Set null-route to avoid routing loops
631 system_add_route(NULL, &route);
633 INIT_LIST_HEAD(&prefix_new->assignments);
634 interface_update_prefix_assignments(prefix_new, true);
635 } else if (node_old) {
636 interface_update_prefix_assignments(prefix_old, false);
639 system_del_route(NULL, &route);
643 list_del(&prefix_old->head);
648 list_add(&prefix_new->head, &prefixes);
652 struct device_prefix*
653 interface_ip_add_device_prefix(struct interface *iface, struct in6_addr *addr,
654 uint8_t length, time_t valid_until, time_t preferred_until,
655 struct in6_addr *excl_addr, uint8_t excl_length)
657 struct device_prefix *prefix = calloc(1, sizeof(*prefix));
658 prefix->length = length;
659 prefix->addr = *addr;
660 prefix->preferred_until = preferred_until;
661 prefix->valid_until = valid_until;
662 prefix->iface = iface;
665 prefix->excl_addr = *excl_addr;
666 prefix->excl_length = excl_length;
670 vlist_add(&iface->proto_ip.prefix, &prefix->node, &prefix->addr);
672 interface_update_prefix(NULL, &prefix->node, NULL);
678 interface_ip_set_ula_prefix(const char *prefix)
680 char buf[INET6_ADDRSTRLEN + 4] = {0}, *saveptr;
682 strncpy(buf, prefix, sizeof(buf) - 1);
683 char *prefixaddr = strtok_r(buf, "/", &saveptr);
685 struct in6_addr addr;
686 if (!prefixaddr || inet_pton(AF_INET6, prefixaddr, &addr) < 1) {
688 interface_update_prefix(NULL, NULL, &ula_prefix->node);
695 char *prefixlen = strtok_r(NULL, ",", &saveptr);
696 if (!prefixlen || (length = atoi(prefixlen)) < 1 || length > 64)
699 if (!ula_prefix || !IN6_ARE_ADDR_EQUAL(&addr, &ula_prefix->addr) ||
700 ula_prefix->length != length) {
702 interface_update_prefix(NULL, NULL, &ula_prefix->node);
704 ula_prefix = interface_ip_add_device_prefix(NULL, &addr, length,
710 interface_add_dns_server(struct interface_ip_settings *ip, const char *str)
712 struct dns_server *s;
714 s = calloc(1, sizeof(*s));
719 if (inet_pton(s->af, str, &s->addr.in))
723 if (inet_pton(s->af, str, &s->addr.in))
730 D(INTERFACE, "Add IPv%c DNS server: %s\n",
731 s->af == AF_INET6 ? '6' : '4', str);
732 vlist_simple_add(&ip->dns_servers, &s->node);
736 interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list)
738 struct blob_attr *cur;
741 blobmsg_for_each_attr(cur, list, rem) {
742 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
745 if (!blobmsg_check_attr(cur, NULL))
748 interface_add_dns_server(ip, blobmsg_data(cur));
753 interface_add_dns_search_domain(struct interface_ip_settings *ip, const char *str)
755 struct dns_search_domain *s;
756 int len = strlen(str);
758 s = calloc(1, sizeof(*s) + len + 1);
762 D(INTERFACE, "Add DNS search domain: %s\n", str);
763 memcpy(s->name, str, len);
764 vlist_simple_add(&ip->dns_search, &s->node);
768 interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list)
770 struct blob_attr *cur;
773 blobmsg_for_each_attr(cur, list, rem) {
774 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
777 if (!blobmsg_check_attr(cur, NULL))
780 interface_add_dns_search_domain(ip, blobmsg_data(cur));
785 write_resolv_conf_entries(FILE *f, struct interface_ip_settings *ip)
787 struct dns_server *s;
788 struct dns_search_domain *d;
790 char buf[INET6_ADDRSTRLEN];
792 vlist_simple_for_each_element(&ip->dns_servers, s, node) {
793 str = inet_ntop(s->af, &s->addr, buf, sizeof(buf));
797 fprintf(f, "nameserver %s\n", str);
800 vlist_simple_for_each_element(&ip->dns_search, d, node) {
801 fprintf(f, "search %s\n", d->name);
806 interface_write_resolv_conf(void)
808 struct interface *iface;
809 char *path = alloca(strlen(resolv_conf) + 5);
811 uint32_t crcold, crcnew;
813 sprintf(path, "%s.tmp", resolv_conf);
815 f = fopen(path, "w+");
817 D(INTERFACE, "Failed to open %s for writing\n", path);
821 vlist_for_each_element(&interfaces, iface, node) {
822 if (iface->state != IFS_UP)
825 if (vlist_simple_empty(&iface->proto_ip.dns_search) &&
826 vlist_simple_empty(&iface->proto_ip.dns_servers) &&
827 vlist_simple_empty(&iface->config_ip.dns_search) &&
828 vlist_simple_empty(&iface->config_ip.dns_servers))
831 fprintf(f, "# Interface %s\n", iface->name);
832 write_resolv_conf_entries(f, &iface->config_ip);
833 if (!iface->proto_ip.no_dns)
834 write_resolv_conf_entries(f, &iface->proto_ip);
838 crcnew = crc32_file(f);
842 f = fopen(resolv_conf, "r");
844 crcold = crc32_file(f);
848 if (crcold == crcnew) {
850 } else if (rename(path, resolv_conf) < 0) {
851 D(INTERFACE, "Failed to replace %s\n", resolv_conf);
856 void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled)
858 struct device_addr *addr;
859 struct device_route *route;
862 ip->enabled = enabled;
863 dev = ip->iface->l3_dev.dev;
867 vlist_for_each_element(&ip->addr, addr, node) {
868 if (addr->enabled == enabled)
872 system_add_address(dev, addr);
874 system_del_address(dev, addr);
875 addr->enabled = enabled;
878 vlist_for_each_element(&ip->route, route, node) {
879 bool _enabled = enabled;
881 if (!enable_route(ip, route))
884 if (route->enabled == _enabled)
888 if (!(route->flags & DEVROUTE_METRIC))
889 route->metric = ip->iface->metric;
891 system_add_route(dev, route);
893 system_del_route(dev, route);
894 route->enabled = _enabled;
897 struct device_prefix *c;
898 struct device_prefix_assignment *a;
899 list_for_each_entry(c, &prefixes, head)
900 list_for_each_entry(a, &c->assignments, head)
901 if (!strcmp(a->name, ip->iface->name))
902 interface_set_prefix_address(a, c, ip->iface, enabled);
906 interface_ip_update_start(struct interface_ip_settings *ip)
908 if (ip != &ip->iface->config_ip) {
909 vlist_simple_update(&ip->dns_servers);
910 vlist_simple_update(&ip->dns_search);
912 vlist_update(&ip->route);
913 vlist_update(&ip->addr);
914 vlist_update(&ip->prefix);
918 interface_ip_update_complete(struct interface_ip_settings *ip)
920 vlist_simple_flush(&ip->dns_servers);
921 vlist_simple_flush(&ip->dns_search);
922 vlist_flush(&ip->route);
923 vlist_flush(&ip->addr);
924 vlist_flush(&ip->prefix);
925 interface_write_resolv_conf();
929 interface_ip_flush(struct interface_ip_settings *ip)
931 if (ip == &ip->iface->proto_ip)
932 vlist_flush_all(&ip->iface->host_routes);
933 vlist_simple_flush_all(&ip->dns_servers);
934 vlist_simple_flush_all(&ip->dns_search);
935 vlist_flush_all(&ip->route);
936 vlist_flush_all(&ip->addr);
937 vlist_flush_all(&ip->prefix);
941 __interface_ip_init(struct interface_ip_settings *ip, struct interface *iface)
945 vlist_simple_init(&ip->dns_search, struct dns_search_domain, node);
946 vlist_simple_init(&ip->dns_servers, struct dns_server, node);
947 vlist_init(&ip->route, route_cmp, interface_update_proto_route);
948 vlist_init(&ip->addr, addr_cmp, interface_update_proto_addr);
949 vlist_init(&ip->prefix, prefix_cmp, interface_update_prefix);
953 interface_ip_init(struct interface *iface)
955 __interface_ip_init(&iface->proto_ip, iface);
956 __interface_ip_init(&iface->config_ip, iface);
957 vlist_init(&iface->host_routes, route_cmp, interface_update_host_route);
962 interface_ip_valid_until_handler(struct uloop_timeout *t)
964 time_t now = system_get_rtime();
965 struct interface *iface;
966 vlist_for_each_element(&interfaces, iface, node) {
967 if (iface->state != IFS_UP)
970 struct device_addr *addr, *addrp;
971 struct device_route *route, *routep;
972 struct device_prefix *pref, *prefp;
974 vlist_for_each_element_safe(&iface->proto_ip.addr, addr, node, addrp)
975 if (addr->valid_until && addr->valid_until < now)
976 vlist_delete(&iface->proto_ip.addr, &addr->node);
978 vlist_for_each_element_safe(&iface->proto_ip.route, route, node, routep)
979 if (route->valid_until && route->valid_until < now)
980 vlist_delete(&iface->proto_ip.route, &route->node);
982 vlist_for_each_element_safe(&iface->proto_ip.prefix, pref, node, prefp)
983 if (pref->valid_until && pref->valid_until < now)
984 vlist_delete(&iface->proto_ip.prefix, &pref->node);
988 uloop_timeout_set(t, 1000);
992 interface_ip_init_worker(void)
994 valid_until_timeout.cb = interface_ip_valid_until_handler;
995 uloop_timeout_set(&valid_until_timeout, 1000);