2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2012 Steven Barth <steven@midlink.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
20 #include <arpa/inet.h>
24 #include "interface.h"
25 #include "interface-ip.h"
42 static const struct blobmsg_policy route_attr[__ROUTE_MAX] = {
43 [ROUTE_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
44 [ROUTE_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
45 [ROUTE_MASK] = { .name = "netmask", .type = BLOBMSG_TYPE_STRING },
46 [ROUTE_GATEWAY] = { .name = "gateway", .type = BLOBMSG_TYPE_STRING },
47 [ROUTE_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
48 [ROUTE_MTU] = { .name = "mtu", .type = BLOBMSG_TYPE_INT32 },
49 [ROUTE_TABLE] = { .name = "table", .type = BLOBMSG_TYPE_STRING },
50 [ROUTE_VALID] = { .name = "valid", .type = BLOBMSG_TYPE_INT32 },
53 const struct config_param_list route_attr_list = {
54 .n_params = __ROUTE_MAX,
59 struct list_head prefixes = LIST_HEAD_INIT(prefixes);
60 static struct device_prefix *ula_prefix = NULL;
61 static struct uloop_timeout valid_until_timeout;
65 clear_if_addr(union if_addr *a, int mask)
67 int m_bytes = (mask + 7) / 8;
68 uint8_t m_clear = (1 << (m_bytes * 8 - mask)) - 1;
69 uint8_t *p = (uint8_t *) a;
71 if (m_bytes < sizeof(a))
72 memset(p + m_bytes, 0, sizeof(a) - m_bytes);
74 p[m_bytes - 1] &= ~m_clear;
78 match_if_addr(union if_addr *a1, union if_addr *a2, int mask)
80 union if_addr *p1, *p2;
82 p1 = alloca(sizeof(*a1));
83 p2 = alloca(sizeof(*a2));
85 memcpy(p1, a1, sizeof(*a1));
86 clear_if_addr(p1, mask);
87 memcpy(p2, a2, sizeof(*a2));
88 clear_if_addr(p2, mask);
90 return !memcmp(p1, p2, sizeof(*p1));
94 __find_ip_addr_target(struct interface_ip_settings *ip, union if_addr *a, bool v6)
96 struct device_addr *addr;
98 vlist_for_each_element(&ip->addr, addr, node) {
102 if (v6 != ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET6))
105 if (!match_if_addr(&addr->addr, a, addr->mask))
115 __find_ip_route_target(struct interface_ip_settings *ip, union if_addr *a,
116 bool v6, struct device_route **res)
118 struct device_route *route;
120 vlist_for_each_element(&ip->route, route, node) {
124 if (v6 != ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET6))
127 if (!match_if_addr(&route->addr, a, route->mask))
130 if (route->flags & DEVROUTE_TABLE)
133 if (!*res || route->mask < (*res)->mask)
139 interface_ip_find_addr_target(struct interface *iface, union if_addr *a, bool v6)
141 return __find_ip_addr_target(&iface->proto_ip, a, v6) ||
142 __find_ip_addr_target(&iface->config_ip, a, v6);
146 interface_ip_find_route_target(struct interface *iface, union if_addr *a,
147 bool v6, struct device_route **route)
149 __find_ip_route_target(&iface->proto_ip, a, v6, route);
150 __find_ip_route_target(&iface->config_ip, a, v6, route);
154 interface_ip_add_target_route(union if_addr *addr, bool v6)
156 struct interface *iface;
157 struct device_route *route, *r_next = NULL;
158 bool defaultroute_target = false;
159 int addrsize = v6 ? sizeof(addr->in6) : sizeof(addr->in);
161 route = calloc(1, sizeof(*route));
165 route->flags = v6 ? DEVADDR_INET6 : DEVADDR_INET4;
166 route->mask = v6 ? 128 : 32;
167 if (memcmp(&route->addr, addr, addrsize) == 0)
168 defaultroute_target = true;
170 memcpy(&route->addr, addr, addrsize);
172 vlist_for_each_element(&interfaces, iface, node) {
173 /* look for locally addressable target first */
174 if (interface_ip_find_addr_target(iface, addr, v6))
177 /* do not stop at the first route, let the lookup compare
178 * masks to find the best match */
179 interface_ip_find_route_target(iface, addr, v6, &r_next);
187 iface = r_next->iface;
188 memcpy(&route->nexthop, &r_next->nexthop, sizeof(route->nexthop));
189 route->mtu = r_next->mtu;
190 route->metric = r_next->metric;
193 route->iface = iface;
194 if (defaultroute_target)
197 vlist_add(&iface->host_routes, &route->node, &route->flags);
202 interface_ip_add_route(struct interface *iface, struct blob_attr *attr, bool v6)
204 struct interface_ip_settings *ip;
205 struct blob_attr *tb[__ROUTE_MAX], *cur;
206 struct device_route *route;
207 int af = v6 ? AF_INET6 : AF_INET;
209 blobmsg_parse(route_attr, __ROUTE_MAX, tb, blobmsg_data(attr), blobmsg_data_len(attr));
212 if ((cur = tb[ROUTE_INTERFACE]) == NULL)
215 iface = vlist_find(&interfaces, blobmsg_data(cur), iface, node);
219 ip = &iface->config_ip;
221 ip = &iface->proto_ip;
224 route = calloc(1, sizeof(*route));
228 route->flags = v6 ? DEVADDR_INET6 : DEVADDR_INET4;
229 route->mask = v6 ? 128 : 32;
230 if ((cur = tb[ROUTE_MASK]) != NULL) {
231 route->mask = parse_netmask_string(blobmsg_data(cur), v6);
232 if (route->mask > (v6 ? 128 : 32))
236 if ((cur = tb[ROUTE_TARGET]) != NULL) {
237 if (!parse_ip_and_netmask(af, blobmsg_data(cur), &route->addr, &route->mask)) {
238 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur));
243 if ((cur = tb[ROUTE_GATEWAY]) != NULL) {
244 if (!inet_pton(af, blobmsg_data(cur), &route->nexthop)) {
245 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur));
250 if ((cur = tb[ROUTE_METRIC]) != NULL) {
251 route->metric = blobmsg_get_u32(cur);
252 route->flags |= DEVROUTE_METRIC;
255 if ((cur = tb[ROUTE_MTU]) != NULL) {
256 route->mtu = blobmsg_get_u32(cur);
257 route->flags |= DEVROUTE_MTU;
260 if ((cur = tb[ROUTE_TABLE]) != NULL) {
261 if (!system_resolve_rt_table(blobmsg_data(cur), &route->table)) {
262 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur));
267 route->flags |= DEVROUTE_TABLE;
270 if ((cur = tb[ROUTE_VALID]) != NULL)
271 route->valid_until = system_get_rtime() + blobmsg_get_u32(cur);
273 vlist_add(&ip->route, &route->node, &route->flags);
281 addr_cmp(const void *k1, const void *k2, void *ptr)
283 return memcmp(k1, k2, sizeof(struct device_addr) -
284 offsetof(struct device_addr, flags));
288 route_cmp(const void *k1, const void *k2, void *ptr)
290 return memcmp(k1, k2, sizeof(struct device_route) -
291 offsetof(struct device_route, flags));
295 prefix_cmp(const void *k1, const void *k2, void *ptr)
297 return memcmp(k1, k2, sizeof(struct device_prefix) -
298 offsetof(struct device_prefix, addr));
302 interface_handle_subnet_route(struct interface *iface, struct device_addr *addr, bool add)
304 struct device *dev = iface->l3_dev.dev;
305 struct device_route route;
307 memset(&route, 0, sizeof(route));
309 route.flags = addr->flags;
310 route.mask = addr->mask;
311 memcpy(&route.addr, &addr->addr, sizeof(route.addr));
312 clear_if_addr(&route.addr, route.mask);
315 route.flags |= DEVADDR_KERNEL;
316 system_del_route(dev, &route);
318 if (!(addr->flags & DEVADDR_OFFLINK)) {
319 route.flags &= ~DEVADDR_KERNEL;
320 route.metric = iface->metric;
321 system_add_route(dev, &route);
324 if (!(addr->flags & DEVADDR_OFFLINK))
325 system_del_route(dev, &route);
330 interface_update_proto_addr(struct vlist_tree *tree,
331 struct vlist_node *node_new,
332 struct vlist_node *node_old)
334 struct interface_ip_settings *ip;
335 struct interface *iface;
337 struct device_addr *a_new = NULL, *a_old = NULL;
340 ip = container_of(tree, struct interface_ip_settings, addr);
342 dev = iface->l3_dev.dev;
345 a_new = container_of(node_new, struct device_addr, node);
347 if ((a_new->flags & DEVADDR_FAMILY) == DEVADDR_INET4 &&
351 uint32_t *a = (uint32_t *) &a_new->addr;
353 mask >>= a_new->mask;
354 a_new->broadcast = *a | htonl(mask);
359 a_old = container_of(node_old, struct device_addr, node);
361 if (a_new && a_old) {
364 if (a_old->flags != a_new->flags ||
365 a_old->valid_until != a_new->valid_until ||
366 a_old->preferred_until != a_new->preferred_until)
369 if ((a_new->flags & DEVADDR_FAMILY) == DEVADDR_INET4 &&
370 a_new->broadcast != a_old->broadcast)
375 if (!(a_old->flags & DEVADDR_EXTERNAL) && a_old->enabled && !keep) {
376 interface_handle_subnet_route(iface, a_old, false);
377 system_del_address(dev, a_old);
383 a_new->enabled = true;
384 if (!(a_new->flags & DEVADDR_EXTERNAL) && !keep) {
385 system_add_address(dev, a_new);
386 if ((a_new->flags & DEVADDR_OFFLINK) || iface->metric)
387 interface_handle_subnet_route(iface, a_new, true);
393 enable_route(struct interface_ip_settings *ip, struct device_route *route)
395 if (ip->no_defaultroute && !route->mask)
402 interface_update_proto_route(struct vlist_tree *tree,
403 struct vlist_node *node_new,
404 struct vlist_node *node_old)
406 struct interface_ip_settings *ip;
407 struct interface *iface;
409 struct device_route *route_old, *route_new;
412 ip = container_of(tree, struct interface_ip_settings, route);
414 dev = iface->l3_dev.dev;
416 route_old = container_of(node_old, struct device_route, node);
417 route_new = container_of(node_new, struct device_route, node);
419 if (node_old && node_new)
420 keep = !memcmp(&route_old->nexthop, &route_new->nexthop, sizeof(route_old->nexthop));
423 if (!(route_old->flags & DEVADDR_EXTERNAL) && route_old->enabled && !keep)
424 system_del_route(dev, route_old);
429 bool _enabled = enable_route(ip, route_new);
431 if (!(route_new->flags & DEVROUTE_METRIC))
432 route_new->metric = iface->metric;
434 if (!(route_new->flags & DEVADDR_EXTERNAL) && !keep && _enabled)
435 system_add_route(dev, route_new);
437 route_new->iface = iface;
438 route_new->enabled = _enabled;
443 interface_update_host_route(struct vlist_tree *tree,
444 struct vlist_node *node_new,
445 struct vlist_node *node_old)
447 struct interface *iface;
449 struct device_route *route_old, *route_new;
451 iface = container_of(tree, struct interface, host_routes);
452 dev = iface->l3_dev.dev;
454 route_old = container_of(node_old, struct device_route, node);
455 route_new = container_of(node_new, struct device_route, node);
458 system_del_route(dev, route_old);
463 system_add_route(dev, route_new);
468 interface_set_prefix_address(struct device_prefix_assignment *assignment,
469 const struct device_prefix *prefix, struct interface *iface, bool add)
471 const struct interface *uplink = prefix->iface;
472 if (!iface->l3_dev.dev)
475 struct device *l3_downlink = iface->l3_dev.dev;
477 struct device_addr addr;
478 memset(&addr, 0, sizeof(addr));
479 addr.addr.in6 = prefix->addr;
480 addr.addr.in6.s6_addr32[1] |= htonl(assignment->assigned);
481 addr.addr.in6.s6_addr[15] += 1;
482 addr.mask = assignment->length;
483 addr.flags = DEVADDR_INET6;
484 addr.preferred_until = prefix->preferred_until;
485 addr.valid_until = prefix->valid_until;
487 if (!add && assignment->enabled) {
488 time_t now = system_get_rtime();
489 addr.preferred_until = now;
490 if (!addr.valid_until || addr.valid_until - now > 7200)
491 addr.valid_until = now + 7200;
492 system_add_address(l3_downlink, &addr);
493 assignment->enabled = false;
494 } else if (add && (iface->state == IFS_UP || iface->state == IFS_SETUP)) {
495 system_add_address(l3_downlink, &addr);
496 if (uplink && uplink->l3_dev.dev) {
497 int mtu = system_update_ipv6_mtu(
498 uplink->l3_dev.dev, 0);
500 system_update_ipv6_mtu(l3_downlink, mtu);
502 assignment->enabled = true;
506 static bool interface_prefix_assign(struct list_head *list,
507 struct device_prefix_assignment *assign)
509 int32_t current = 0, asize = (1 << (64 - assign->length)) - 1;
510 struct device_prefix_assignment *c;
511 list_for_each_entry(c, list, head) {
512 if (assign->assigned != -1) {
513 if (assign->assigned > current && assign->assigned + asize < c->assigned) {
514 list_add_tail(&assign->head, &c->head);
517 } else if (assign->assigned == -1) {
518 current = (current + asize) & (~asize);
519 if (current + asize < c->assigned) {
520 assign->assigned = current;
521 list_add_tail(&assign->head, &c->head);
525 current = (c->assigned + (1 << (64 - c->length)));
530 static void interface_update_prefix_assignments(struct device_prefix *prefix, bool setup)
532 struct device_prefix_assignment *c;
533 struct interface *iface;
535 // Delete all assignments
536 while (!list_empty(&prefix->assignments)) {
537 c = list_first_entry(&prefix->assignments,
538 struct device_prefix_assignment, head);
539 if ((iface = vlist_find(&interfaces, c->name, iface, node)))
540 interface_set_prefix_address(c, prefix, iface, false);
548 // End-of-assignment sentinel
549 c = malloc(sizeof(*c) + 1);
550 c->assigned = 1 << (64 - prefix->length);
553 list_add(&c->head, &prefix->assignments);
556 if (prefix->excl_length > 0) {
557 const char name[] = "!excluded";
558 c = malloc(sizeof(*c) + sizeof(name));
559 c->assigned = ntohl(prefix->excl_addr.s6_addr32[1]) &
560 ((1 << (64 - prefix->length)) - 1);
561 c->length = prefix->excl_length;
562 memcpy(c->name, name, sizeof(name));
563 list_add(&c->head, &prefix->assignments);
566 struct list_head assign_later = LIST_HEAD_INIT(assign_later);
567 vlist_for_each_element(&interfaces, iface, node) {
568 if (iface->config_ip.assignment_length < 48 ||
569 iface->config_ip.assignment_length > 64)
572 size_t namelen = strlen(iface->name) + 1;
573 c = malloc(sizeof(*c) + namelen);
574 c->length = iface->config_ip.assignment_length;
575 c->assigned = iface->config_ip.assignment_hint;
577 memcpy(c->name, iface->name, namelen);
579 // First process all custom assignments, put all others in later-list
580 if (c->assigned == -1 || !interface_prefix_assign(&prefix->assignments, c)) {
581 if (c->assigned != -1) {
583 netifd_log_message(L_WARNING, "Failed to assign requested subprefix "
584 "of size %hhu for %s, trying other\n", c->length, c->name);
586 list_add_tail(&c->head, &assign_later);
590 // Then try to assign all other + failed custom assignments
591 while (!list_empty(&assign_later)) {
592 c = list_first_entry(&assign_later, struct device_prefix_assignment, head);
594 if (!interface_prefix_assign(&prefix->assignments, c)) {
595 netifd_log_message(L_WARNING, "Failed to assign subprefix "
596 "of size %hhu for %s\n", c->length, c->name);
601 list_for_each_entry(c, &prefix->assignments, head)
602 if ((iface = vlist_find(&interfaces, c->name, iface, node)))
603 interface_set_prefix_address(c, prefix, iface, true);
607 void interface_refresh_assignments(bool hint)
609 static bool refresh = false;
610 if (!hint && refresh) {
611 struct device_prefix *p;
612 list_for_each_entry(p, &prefixes, head)
613 interface_update_prefix_assignments(p, true);
620 interface_update_prefix(struct vlist_tree *tree,
621 struct vlist_node *node_new,
622 struct vlist_node *node_old)
624 struct device_prefix *prefix_old, *prefix_new;
625 prefix_old = container_of(node_old, struct device_prefix, node);
626 prefix_new = container_of(node_new, struct device_prefix, node);
628 struct device_route route;
629 memset(&route, 0, sizeof(route));
630 route.flags = DEVADDR_INET6;
631 route.metric = INT32_MAX;
632 route.mask = (node_new) ? prefix_new->length : prefix_old->length;
633 route.addr.in6 = (node_new) ? prefix_new->addr : prefix_old->addr;
635 struct device_prefix_assignment *c;
636 struct interface *iface;
638 if (node_old && node_new) {
639 // Move assignments and refresh addresses to update valid times
640 list_splice_init(&prefix_old->assignments, &prefix_new->assignments);
642 list_for_each_entry(c, &prefix_new->assignments, head)
643 if ((iface = vlist_find(&interfaces, c->name, iface, node)))
644 interface_set_prefix_address(c, prefix_new, iface, true);
645 } else if (node_new) {
646 // Set null-route to avoid routing loops
647 system_add_route(NULL, &route);
649 INIT_LIST_HEAD(&prefix_new->assignments);
650 interface_update_prefix_assignments(prefix_new, true);
651 } else if (node_old) {
652 interface_update_prefix_assignments(prefix_old, false);
655 system_del_route(NULL, &route);
659 list_del(&prefix_old->head);
664 list_add(&prefix_new->head, &prefixes);
668 struct device_prefix*
669 interface_ip_add_device_prefix(struct interface *iface, struct in6_addr *addr,
670 uint8_t length, time_t valid_until, time_t preferred_until,
671 struct in6_addr *excl_addr, uint8_t excl_length)
673 struct device_prefix *prefix = calloc(1, sizeof(*prefix));
674 prefix->length = length;
675 prefix->addr = *addr;
676 prefix->preferred_until = preferred_until;
677 prefix->valid_until = valid_until;
678 prefix->iface = iface;
681 prefix->excl_addr = *excl_addr;
682 prefix->excl_length = excl_length;
686 vlist_add(&iface->proto_ip.prefix, &prefix->node, &prefix->addr);
688 interface_update_prefix(NULL, &prefix->node, NULL);
694 interface_ip_set_ula_prefix(const char *prefix)
696 char buf[INET6_ADDRSTRLEN + 4] = {0}, *saveptr;
698 strncpy(buf, prefix, sizeof(buf) - 1);
699 char *prefixaddr = strtok_r(buf, "/", &saveptr);
701 struct in6_addr addr;
702 if (!prefixaddr || inet_pton(AF_INET6, prefixaddr, &addr) < 1) {
704 interface_update_prefix(NULL, NULL, &ula_prefix->node);
711 char *prefixlen = strtok_r(NULL, ",", &saveptr);
712 if (!prefixlen || (length = atoi(prefixlen)) < 1 || length > 64)
715 if (!ula_prefix || !IN6_ARE_ADDR_EQUAL(&addr, &ula_prefix->addr) ||
716 ula_prefix->length != length) {
718 interface_update_prefix(NULL, NULL, &ula_prefix->node);
720 ula_prefix = interface_ip_add_device_prefix(NULL, &addr, length,
726 interface_add_dns_server(struct interface_ip_settings *ip, const char *str)
728 struct dns_server *s;
730 s = calloc(1, sizeof(*s));
735 if (inet_pton(s->af, str, &s->addr.in))
739 if (inet_pton(s->af, str, &s->addr.in))
746 D(INTERFACE, "Add IPv%c DNS server: %s\n",
747 s->af == AF_INET6 ? '6' : '4', str);
748 vlist_simple_add(&ip->dns_servers, &s->node);
752 interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list)
754 struct blob_attr *cur;
757 blobmsg_for_each_attr(cur, list, rem) {
758 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
761 if (!blobmsg_check_attr(cur, NULL))
764 interface_add_dns_server(ip, blobmsg_data(cur));
769 interface_add_dns_search_domain(struct interface_ip_settings *ip, const char *str)
771 struct dns_search_domain *s;
772 int len = strlen(str);
774 s = calloc(1, sizeof(*s) + len + 1);
778 D(INTERFACE, "Add DNS search domain: %s\n", str);
779 memcpy(s->name, str, len);
780 vlist_simple_add(&ip->dns_search, &s->node);
784 interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list)
786 struct blob_attr *cur;
789 blobmsg_for_each_attr(cur, list, rem) {
790 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
793 if (!blobmsg_check_attr(cur, NULL))
796 interface_add_dns_search_domain(ip, blobmsg_data(cur));
801 write_resolv_conf_entries(FILE *f, struct interface_ip_settings *ip)
803 struct dns_server *s;
804 struct dns_search_domain *d;
806 char buf[INET6_ADDRSTRLEN];
808 vlist_simple_for_each_element(&ip->dns_servers, s, node) {
809 str = inet_ntop(s->af, &s->addr, buf, sizeof(buf));
813 fprintf(f, "nameserver %s\n", str);
816 vlist_simple_for_each_element(&ip->dns_search, d, node) {
817 fprintf(f, "search %s\n", d->name);
822 interface_write_resolv_conf(void)
824 struct interface *iface;
825 char *path = alloca(strlen(resolv_conf) + 5);
827 uint32_t crcold, crcnew;
829 sprintf(path, "%s.tmp", resolv_conf);
831 f = fopen(path, "w+");
833 D(INTERFACE, "Failed to open %s for writing\n", path);
837 vlist_for_each_element(&interfaces, iface, node) {
838 if (iface->state != IFS_UP)
841 if (vlist_simple_empty(&iface->proto_ip.dns_search) &&
842 vlist_simple_empty(&iface->proto_ip.dns_servers) &&
843 vlist_simple_empty(&iface->config_ip.dns_search) &&
844 vlist_simple_empty(&iface->config_ip.dns_servers))
847 fprintf(f, "# Interface %s\n", iface->name);
848 write_resolv_conf_entries(f, &iface->config_ip);
849 if (!iface->proto_ip.no_dns)
850 write_resolv_conf_entries(f, &iface->proto_ip);
854 crcnew = crc32_file(f);
858 f = fopen(resolv_conf, "r");
860 crcold = crc32_file(f);
864 if (crcold == crcnew) {
866 } else if (rename(path, resolv_conf) < 0) {
867 D(INTERFACE, "Failed to replace %s\n", resolv_conf);
872 void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled)
874 struct device_addr *addr;
875 struct device_route *route;
878 ip->enabled = enabled;
879 dev = ip->iface->l3_dev.dev;
883 vlist_for_each_element(&ip->addr, addr, node) {
884 if (addr->enabled == enabled)
888 system_add_address(dev, addr);
890 system_del_address(dev, addr);
891 addr->enabled = enabled;
894 vlist_for_each_element(&ip->route, route, node) {
895 bool _enabled = enabled;
897 if (!enable_route(ip, route))
900 if (route->enabled == _enabled)
904 if (!(route->flags & DEVROUTE_METRIC))
905 route->metric = ip->iface->metric;
907 system_add_route(dev, route);
909 system_del_route(dev, route);
910 route->enabled = _enabled;
913 struct device_prefix *c;
914 struct device_prefix_assignment *a;
915 list_for_each_entry(c, &prefixes, head)
916 list_for_each_entry(a, &c->assignments, head)
917 if (!strcmp(a->name, ip->iface->name))
918 interface_set_prefix_address(a, c, ip->iface, enabled);
922 interface_ip_update_start(struct interface_ip_settings *ip)
924 if (ip != &ip->iface->config_ip) {
925 vlist_simple_update(&ip->dns_servers);
926 vlist_simple_update(&ip->dns_search);
928 vlist_update(&ip->route);
929 vlist_update(&ip->addr);
930 vlist_update(&ip->prefix);
934 interface_ip_update_complete(struct interface_ip_settings *ip)
936 vlist_simple_flush(&ip->dns_servers);
937 vlist_simple_flush(&ip->dns_search);
938 vlist_flush(&ip->route);
939 vlist_flush(&ip->addr);
940 vlist_flush(&ip->prefix);
941 interface_write_resolv_conf();
945 interface_ip_flush(struct interface_ip_settings *ip)
947 if (ip == &ip->iface->proto_ip)
948 vlist_flush_all(&ip->iface->host_routes);
949 vlist_simple_flush_all(&ip->dns_servers);
950 vlist_simple_flush_all(&ip->dns_search);
951 vlist_flush_all(&ip->route);
952 vlist_flush_all(&ip->addr);
953 vlist_flush_all(&ip->prefix);
957 __interface_ip_init(struct interface_ip_settings *ip, struct interface *iface)
961 vlist_simple_init(&ip->dns_search, struct dns_search_domain, node);
962 vlist_simple_init(&ip->dns_servers, struct dns_server, node);
963 vlist_init(&ip->route, route_cmp, interface_update_proto_route);
964 vlist_init(&ip->addr, addr_cmp, interface_update_proto_addr);
965 vlist_init(&ip->prefix, prefix_cmp, interface_update_prefix);
969 interface_ip_init(struct interface *iface)
971 __interface_ip_init(&iface->proto_ip, iface);
972 __interface_ip_init(&iface->config_ip, iface);
973 vlist_init(&iface->host_routes, route_cmp, interface_update_host_route);
978 interface_ip_valid_until_handler(struct uloop_timeout *t)
980 time_t now = system_get_rtime();
981 struct interface *iface;
982 vlist_for_each_element(&interfaces, iface, node) {
983 if (iface->state != IFS_UP)
986 struct device_addr *addr, *addrp;
987 struct device_route *route, *routep;
988 struct device_prefix *pref, *prefp;
990 vlist_for_each_element_safe(&iface->proto_ip.addr, addr, node, addrp)
991 if (addr->valid_until && addr->valid_until < now)
992 vlist_delete(&iface->proto_ip.addr, &addr->node);
994 vlist_for_each_element_safe(&iface->proto_ip.route, route, node, routep)
995 if (route->valid_until && route->valid_until < now)
996 vlist_delete(&iface->proto_ip.route, &route->node);
998 vlist_for_each_element_safe(&iface->proto_ip.prefix, pref, node, prefp)
999 if (pref->valid_until && pref->valid_until < now)
1000 vlist_delete(&iface->proto_ip.prefix, &pref->node);
1004 uloop_timeout_set(t, 1000);
1008 interface_ip_init_worker(void)
1010 valid_until_timeout.cb = interface_ip_valid_until_handler;
1011 uloop_timeout_set(&valid_until_timeout, 1000);