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"
39 static const struct blobmsg_policy route_attr
[__ROUTE_MAX
] = {
40 [ROUTE_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
41 [ROUTE_TARGET
] = { .name
= "target", .type
= BLOBMSG_TYPE_STRING
},
42 [ROUTE_MASK
] = { .name
= "netmask", .type
= BLOBMSG_TYPE_STRING
},
43 [ROUTE_GATEWAY
] = { .name
= "gateway", .type
= BLOBMSG_TYPE_STRING
},
44 [ROUTE_METRIC
] = { .name
= "metric", .type
= BLOBMSG_TYPE_INT32
},
45 [ROUTE_MTU
] = { .name
= "mtu", .type
= BLOBMSG_TYPE_INT32
},
48 const struct config_param_list route_attr_list
= {
49 .n_params
= __ROUTE_MAX
,
54 struct list_head prefixes
= LIST_HEAD_INIT(prefixes
);
55 static struct device_prefix
*ula_prefix
= NULL
;
59 clear_if_addr(union if_addr
*a
, int mask
)
61 int m_bytes
= (mask
+ 7) / 8;
62 uint8_t m_clear
= (1 << (m_bytes
* 8 - mask
)) - 1;
63 uint8_t *p
= (uint8_t *) a
;
65 if (m_bytes
< sizeof(a
))
66 memset(p
+ m_bytes
, 0, sizeof(a
) - m_bytes
);
68 p
[m_bytes
- 1] &= ~m_clear
;
72 match_if_addr(union if_addr
*a1
, union if_addr
*a2
, int mask
)
74 union if_addr
*p1
, *p2
;
76 p1
= alloca(sizeof(*a1
));
77 p2
= alloca(sizeof(*a2
));
79 memcpy(p1
, a1
, sizeof(*a1
));
80 clear_if_addr(p1
, mask
);
81 memcpy(p2
, a2
, sizeof(*a2
));
82 clear_if_addr(p2
, mask
);
84 return !memcmp(p1
, p2
, sizeof(*p1
));
88 __find_ip_addr_target(struct interface_ip_settings
*ip
, union if_addr
*a
, bool v6
)
90 struct device_addr
*addr
;
92 vlist_for_each_element(&ip
->addr
, addr
, node
) {
96 if (v6
!= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
))
99 if (!match_if_addr(&addr
->addr
, a
, addr
->mask
))
109 __find_ip_route_target(struct interface_ip_settings
*ip
, union if_addr
*a
,
110 bool v6
, struct device_route
**res
)
112 struct device_route
*route
;
114 vlist_for_each_element(&ip
->route
, route
, node
) {
118 if (v6
!= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
))
121 if (!match_if_addr(&route
->addr
, a
, route
->mask
))
124 if (!*res
|| route
->mask
< (*res
)->mask
)
130 interface_ip_find_addr_target(struct interface
*iface
, union if_addr
*a
, bool v6
)
132 return __find_ip_addr_target(&iface
->proto_ip
, a
, v6
) ||
133 __find_ip_addr_target(&iface
->config_ip
, a
, v6
);
137 interface_ip_find_route_target(struct interface
*iface
, union if_addr
*a
,
138 bool v6
, struct device_route
**route
)
140 __find_ip_route_target(&iface
->proto_ip
, a
, v6
, route
);
141 __find_ip_route_target(&iface
->config_ip
, a
, v6
, route
);
145 interface_ip_add_target_route(union if_addr
*addr
, bool v6
)
147 struct interface
*iface
;
148 struct device_route
*route
, *r_next
= NULL
;
149 bool defaultroute_target
= false;
150 int addrsize
= v6
? sizeof(addr
->in6
) : sizeof(addr
->in
);
152 route
= calloc(1, sizeof(*route
));
156 route
->flags
= v6
? DEVADDR_INET6
: DEVADDR_INET4
;
157 route
->mask
= v6
? 128 : 32;
158 if (memcmp(&route
->addr
, addr
, addrsize
) == 0)
159 defaultroute_target
= true;
161 memcpy(&route
->addr
, addr
, addrsize
);
163 vlist_for_each_element(&interfaces
, iface
, node
) {
164 /* look for locally addressable target first */
165 if (interface_ip_find_addr_target(iface
, addr
, v6
))
168 /* do not stop at the first route, let the lookup compare
169 * masks to find the best match */
170 interface_ip_find_route_target(iface
, addr
, v6
, &r_next
);
178 iface
= r_next
->iface
;
179 memcpy(&route
->nexthop
, &r_next
->nexthop
, sizeof(route
->nexthop
));
180 route
->mtu
= r_next
->mtu
;
181 route
->metric
= r_next
->metric
;
184 route
->iface
= iface
;
185 if (defaultroute_target
)
188 vlist_add(&iface
->host_routes
, &route
->node
, &route
->flags
);
193 interface_ip_add_route(struct interface
*iface
, struct blob_attr
*attr
, bool v6
)
195 struct interface_ip_settings
*ip
;
196 struct blob_attr
*tb
[__ROUTE_MAX
], *cur
;
197 struct device_route
*route
;
198 int af
= v6
? AF_INET6
: AF_INET
;
200 blobmsg_parse(route_attr
, __ROUTE_MAX
, tb
, blobmsg_data(attr
), blobmsg_data_len(attr
));
203 if ((cur
= tb
[ROUTE_INTERFACE
]) == NULL
)
206 iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
210 ip
= &iface
->config_ip
;
212 ip
= &iface
->proto_ip
;
215 route
= calloc(1, sizeof(*route
));
219 route
->flags
= v6
? DEVADDR_INET6
: DEVADDR_INET4
;
220 route
->mask
= v6
? 128 : 32;
221 if ((cur
= tb
[ROUTE_MASK
]) != NULL
) {
222 route
->mask
= parse_netmask_string(blobmsg_data(cur
), v6
);
223 if (route
->mask
> (v6
? 128 : 32))
227 if ((cur
= tb
[ROUTE_TARGET
]) != NULL
) {
228 if (!parse_ip_and_netmask(af
, blobmsg_data(cur
), &route
->addr
, &route
->mask
)) {
229 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur
));
234 if ((cur
= tb
[ROUTE_GATEWAY
]) != NULL
) {
235 if (!inet_pton(af
, blobmsg_data(cur
), &route
->nexthop
)) {
236 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur
));
241 if ((cur
= tb
[ROUTE_METRIC
]) != NULL
) {
242 route
->metric
= blobmsg_get_u32(cur
);
243 route
->flags
|= DEVROUTE_METRIC
;
246 if ((cur
= tb
[ROUTE_MTU
]) != NULL
) {
247 route
->mtu
= blobmsg_get_u32(cur
);
248 route
->flags
|= DEVROUTE_MTU
;
251 vlist_add(&ip
->route
, &route
->node
, &route
->flags
);
259 addr_cmp(const void *k1
, const void *k2
, void *ptr
)
261 return memcmp(k1
, k2
, sizeof(struct device_addr
) -
262 offsetof(struct device_addr
, flags
));
266 route_cmp(const void *k1
, const void *k2
, void *ptr
)
268 return memcmp(k1
, k2
, sizeof(struct device_route
) -
269 offsetof(struct device_route
, flags
));
273 prefix_cmp(const void *k1
, const void *k2
, void *ptr
)
275 return memcmp(k1
, k2
, sizeof(struct device_prefix
) -
276 offsetof(struct device_prefix
, addr
));
280 interface_handle_subnet_route(struct interface
*iface
, struct device_addr
*addr
, bool add
)
282 struct device
*dev
= iface
->l3_dev
.dev
;
283 struct device_route route
;
285 memset(&route
, 0, sizeof(route
));
287 route
.flags
= addr
->flags
;
288 route
.mask
= addr
->mask
;
289 memcpy(&route
.addr
, &addr
->addr
, sizeof(route
.addr
));
290 clear_if_addr(&route
.addr
, route
.mask
);
293 route
.flags
|= DEVADDR_KERNEL
;
294 system_del_route(dev
, &route
);
296 route
.flags
&= ~DEVADDR_KERNEL
;
297 route
.metric
= iface
->metric
;
298 system_add_route(dev
, &route
);
300 system_del_route(dev
, &route
);
305 interface_update_proto_addr(struct vlist_tree
*tree
,
306 struct vlist_node
*node_new
,
307 struct vlist_node
*node_old
)
309 struct interface_ip_settings
*ip
;
310 struct interface
*iface
;
312 struct device_addr
*a_new
= NULL
, *a_old
= NULL
;
315 ip
= container_of(tree
, struct interface_ip_settings
, addr
);
317 dev
= iface
->l3_dev
.dev
;
320 a_new
= container_of(node_new
, struct device_addr
, node
);
322 if ((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
&&
326 uint32_t *a
= (uint32_t *) &a_new
->addr
;
328 mask
>>= a_new
->mask
;
329 a_new
->broadcast
= *a
| htonl(mask
);
334 a_old
= container_of(node_old
, struct device_addr
, node
);
336 if (a_new
&& a_old
) {
339 if (a_old
->flags
!= a_new
->flags
)
342 if ((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
&&
343 a_new
->broadcast
!= a_old
->broadcast
)
348 if (!(a_old
->flags
& DEVADDR_EXTERNAL
) && a_old
->enabled
&& !keep
) {
349 interface_handle_subnet_route(iface
, a_old
, false);
350 system_del_address(dev
, a_old
);
356 a_new
->enabled
= true;
357 if (!(a_new
->flags
& DEVADDR_EXTERNAL
) && !keep
) {
358 system_add_address(dev
, a_new
);
360 interface_handle_subnet_route(iface
, a_new
, true);
366 enable_route(struct interface_ip_settings
*ip
, struct device_route
*route
)
368 if (ip
->no_defaultroute
&& !route
->mask
)
375 interface_update_proto_route(struct vlist_tree
*tree
,
376 struct vlist_node
*node_new
,
377 struct vlist_node
*node_old
)
379 struct interface_ip_settings
*ip
;
380 struct interface
*iface
;
382 struct device_route
*route_old
, *route_new
;
385 ip
= container_of(tree
, struct interface_ip_settings
, route
);
387 dev
= iface
->l3_dev
.dev
;
389 route_old
= container_of(node_old
, struct device_route
, node
);
390 route_new
= container_of(node_new
, struct device_route
, node
);
392 if (node_old
&& node_new
)
393 keep
= !memcmp(&route_old
->nexthop
, &route_new
->nexthop
, sizeof(route_old
->nexthop
));
396 if (!(route_old
->flags
& DEVADDR_EXTERNAL
) && route_old
->enabled
&& !keep
)
397 system_del_route(dev
, route_old
);
402 bool _enabled
= enable_route(ip
, route_new
);
404 if (!(route_new
->flags
& DEVROUTE_METRIC
))
405 route_new
->metric
= iface
->metric
;
407 if (!(route_new
->flags
& DEVADDR_EXTERNAL
) && !keep
&& _enabled
)
408 system_add_route(dev
, route_new
);
410 route_new
->iface
= iface
;
411 route_new
->enabled
= _enabled
;
416 interface_update_host_route(struct vlist_tree
*tree
,
417 struct vlist_node
*node_new
,
418 struct vlist_node
*node_old
)
420 struct interface
*iface
;
422 struct device_route
*route_old
, *route_new
;
424 iface
= container_of(tree
, struct interface
, host_routes
);
425 dev
= iface
->l3_dev
.dev
;
427 route_old
= container_of(node_old
, struct device_route
, node
);
428 route_new
= container_of(node_new
, struct device_route
, node
);
431 system_del_route(dev
, route_old
);
436 system_add_route(dev
, route_new
);
441 interface_set_prefix_address(struct interface
*iface
, bool add
,
442 struct device_prefix_assignment
*assignment
)
444 struct interface
*uplink
= assignment
->prefix
->iface
;
445 if (!iface
->l3_dev
.dev
)
448 struct device
*l3_downlink
= iface
->l3_dev
.dev
;
450 struct device_addr addr
;
451 memset(&addr
, 0, sizeof(addr
));
452 addr
.addr
.in6
= assignment
->addr
;
453 addr
.mask
= assignment
->length
;
454 addr
.flags
= DEVADDR_INET6
;
455 addr
.preferred_until
= assignment
->prefix
->preferred_until
;
456 addr
.valid_until
= assignment
->prefix
->valid_until
;
459 if (assignment
->enabled
)
460 system_del_address(l3_downlink
, &addr
);
462 system_add_address(l3_downlink
, &addr
);
464 if (uplink
&& uplink
->l3_dev
.dev
) {
465 int mtu
= system_update_ipv6_mtu(
466 uplink
->l3_dev
.dev
, 0);
468 system_update_ipv6_mtu(l3_downlink
, mtu
);
471 assignment
->enabled
= add
;
476 interface_update_prefix_assignments(struct vlist_tree
*tree
,
477 struct vlist_node
*node_new
,
478 struct vlist_node
*node_old
)
480 struct device_prefix_assignment
*old
, *new;
481 old
= container_of(node_old
, struct device_prefix_assignment
, node
);
482 new = container_of(node_new
, struct device_prefix_assignment
, node
);
484 // Assignments persist across interface reloads etc.
485 // so use indirection to avoid dangling pointers
486 struct interface
*iface
= vlist_find(&interfaces
,
487 (node_new
) ? new->name
: old
->name
, iface
, node
);
489 if (node_old
&& node_new
) {
490 new->addr
= old
->addr
;
491 new->length
= old
->length
;
492 } else if (node_old
) {
494 interface_set_prefix_address(iface
, false, old
);
496 } else if (node_new
) {
497 struct device_prefix
*prefix
= new->prefix
;
498 uint64_t want
= 1ULL << (64 - new->length
);
499 prefix
->avail
&= ~(want
- 1);
500 prefix
->avail
-= want
;
503 uint64_t assigned
= ~prefix
->avail
;
504 assigned
&= (1ULL << (64 - prefix
->length
)) - 1;
505 assigned
&= ~(want
- 1);
508 new->addr
= prefix
->addr
;
509 new->addr
.s6_addr32
[0] |=
510 htonl(assigned
>> 32);
511 new->addr
.s6_addr32
[1] |=
512 htonl(assigned
& 0xffffffffU
);
513 new->addr
.s6_addr
[15] += 1;
516 if (node_new
&& (iface
->state
== IFS_UP
|| iface
->state
== IFS_SETUP
))
517 interface_set_prefix_address(iface
, true, new);
522 interface_ip_set_prefix_assignment(struct device_prefix
*prefix
,
523 struct interface
*iface
, uint8_t length
)
525 struct device_prefix_assignment
*assignment
;
527 if (!length
|| length
> 64) {
528 assignment
= vlist_find(prefix
->assignments
, iface
->name
, assignment
, node
);
530 interface_set_prefix_address(iface
, false, assignment
);
532 uint64_t want
= 1ULL << (64 - length
);
535 if (prefix
->avail
< want
&& prefix
->avail
> 0) {
537 want
= 1ULL << (64 - ++length
);
538 } while (want
> prefix
->avail
);
541 if (prefix
->avail
< want
)
544 assignment
= calloc_a(sizeof(*assignment
),
545 &name
, strlen(iface
->name
) + 1);
546 assignment
->prefix
= prefix
;
547 assignment
->length
= length
;
548 assignment
->name
= strcpy(name
, iface
->name
);
550 vlist_add(prefix
->assignments
, &assignment
->node
, assignment
->name
);
555 interface_update_prefix(struct vlist_tree
*tree
,
556 struct vlist_node
*node_new
,
557 struct vlist_node
*node_old
)
559 struct device_prefix
*prefix_old
, *prefix_new
;
560 prefix_old
= container_of(node_old
, struct device_prefix
, node
);
561 prefix_new
= container_of(node_new
, struct device_prefix
, node
);
563 struct device_route route
;
564 memset(&route
, 0, sizeof(route
));
565 route
.flags
= DEVADDR_INET6
;
566 route
.metric
= INT32_MAX
;
567 route
.mask
= (node_new
) ? prefix_new
->length
: prefix_old
->length
;
568 route
.addr
.in6
= (node_new
) ? prefix_new
->addr
: prefix_old
->addr
;
570 if (node_old
&& node_new
) {
571 prefix_new
->avail
= prefix_old
->avail
;
572 prefix_new
->assignments
= prefix_old
->assignments
;
573 prefix_old
->assignments
= NULL
;
575 // Update all assignments
576 struct device_prefix_assignment
*assignment
;
577 struct vlist_tree
*assignments
= prefix_new
->assignments
;
578 vlist_for_each_element(assignments
, assignment
, node
) {
579 assignment
->prefix
= prefix_new
;
580 assignments
->update(assignments
,
581 &assignment
->node
, &assignment
->node
);
583 } else if (node_new
) {
584 prefix_new
->avail
= 1ULL << (64 - prefix_new
->length
);
585 prefix_new
->assignments
= calloc(1, sizeof(*prefix_new
->assignments
));
586 vlist_init(prefix_new
->assignments
, avl_strcmp
,
587 interface_update_prefix_assignments
);
589 // Create initial assignments for interfaces
590 struct interface
*iface
;
591 vlist_for_each_element(&interfaces
, iface
, node
)
592 interface_ip_set_prefix_assignment(prefix_new
, iface
,
593 iface
->proto_ip
.assignment_length
);
595 // Set null-route to avoid routing loops
596 system_add_route(NULL
, &route
);
601 system_del_route(NULL
, &route
);
603 list_del(&prefix_old
->head
);
605 if (prefix_old
->assignments
) {
606 vlist_flush_all(prefix_old
->assignments
);
607 free(prefix_old
->assignments
);
613 list_add(&prefix_new
->head
, &prefixes
);
617 interface_ip_add_device_prefix(struct interface
*iface
, struct in6_addr
*addr
,
618 uint8_t length
, time_t valid_until
, time_t preferred_until
)
620 struct device_prefix
*prefix
= calloc(1, sizeof(*prefix
));
621 prefix
->length
= length
;
622 prefix
->addr
= *addr
;
623 prefix
->preferred_until
= preferred_until
;
624 prefix
->valid_until
= valid_until
;
625 prefix
->iface
= iface
;
628 vlist_add(&iface
->proto_ip
.prefix
, &prefix
->node
, &prefix
->addr
);
630 interface_update_prefix(NULL
, &prefix
->node
, NULL
);
634 interface_ip_set_ula_prefix(const char *prefix
)
636 char buf
[INET6_ADDRSTRLEN
+ 4] = {0}, *saveptr
;
638 strncpy(buf
, prefix
, sizeof(buf
) - 1);
639 char *prefixaddr
= strtok_r(buf
, "/", &saveptr
);
641 struct in6_addr addr
;
642 if (!prefixaddr
|| inet_pton(AF_INET6
, prefixaddr
, &addr
) < 1) {
644 interface_update_prefix(NULL
, NULL
, &ula_prefix
->node
);
651 char *prefixlen
= strtok_r(NULL
, ",", &saveptr
);
652 if (!prefixlen
|| (length
= atoi(prefixlen
)) < 1 || length
> 64)
655 if (ula_prefix
&& (!IN6_ARE_ADDR_EQUAL(&addr
, &ula_prefix
->addr
) ||
656 ula_prefix
->length
!= length
)) {
657 interface_update_prefix(NULL
, NULL
, &ula_prefix
->node
);
661 interface_ip_add_device_prefix(NULL
, &addr
, length
, 0, 0);
665 interface_add_dns_server(struct interface_ip_settings
*ip
, const char *str
)
667 struct dns_server
*s
;
669 s
= calloc(1, sizeof(*s
));
674 if (inet_pton(s
->af
, str
, &s
->addr
.in
))
678 if (inet_pton(s
->af
, str
, &s
->addr
.in
))
685 D(INTERFACE
, "Add IPv%c DNS server: %s\n",
686 s
->af
== AF_INET6
? '6' : '4', str
);
687 vlist_simple_add(&ip
->dns_servers
, &s
->node
);
691 interface_add_dns_server_list(struct interface_ip_settings
*ip
, struct blob_attr
*list
)
693 struct blob_attr
*cur
;
696 blobmsg_for_each_attr(cur
, list
, rem
) {
697 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
700 if (!blobmsg_check_attr(cur
, NULL
))
703 interface_add_dns_server(ip
, blobmsg_data(cur
));
708 interface_add_dns_search_domain(struct interface_ip_settings
*ip
, const char *str
)
710 struct dns_search_domain
*s
;
711 int len
= strlen(str
);
713 s
= calloc(1, sizeof(*s
) + len
+ 1);
717 D(INTERFACE
, "Add DNS search domain: %s\n", str
);
718 memcpy(s
->name
, str
, len
);
719 vlist_simple_add(&ip
->dns_search
, &s
->node
);
723 interface_add_dns_search_list(struct interface_ip_settings
*ip
, struct blob_attr
*list
)
725 struct blob_attr
*cur
;
728 blobmsg_for_each_attr(cur
, list
, rem
) {
729 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
732 if (!blobmsg_check_attr(cur
, NULL
))
735 interface_add_dns_search_domain(ip
, blobmsg_data(cur
));
740 write_resolv_conf_entries(FILE *f
, struct interface_ip_settings
*ip
)
742 struct dns_server
*s
;
743 struct dns_search_domain
*d
;
747 vlist_simple_for_each_element(&ip
->dns_servers
, s
, node
) {
748 str
= inet_ntop(s
->af
, &s
->addr
, buf
, sizeof(buf
));
752 fprintf(f
, "nameserver %s\n", str
);
755 vlist_simple_for_each_element(&ip
->dns_search
, d
, node
) {
756 fprintf(f
, "search %s\n", d
->name
);
761 interface_write_resolv_conf(void)
763 struct interface
*iface
;
764 char *path
= alloca(strlen(resolv_conf
) + 5);
767 sprintf(path
, "%s.tmp", resolv_conf
);
769 f
= fopen(path
, "w");
771 D(INTERFACE
, "Failed to open %s for writing\n", path
);
775 vlist_for_each_element(&interfaces
, iface
, node
) {
776 if (iface
->state
!= IFS_UP
)
779 if (vlist_simple_empty(&iface
->proto_ip
.dns_search
) &&
780 vlist_simple_empty(&iface
->proto_ip
.dns_servers
) &&
781 vlist_simple_empty(&iface
->config_ip
.dns_search
) &&
782 vlist_simple_empty(&iface
->config_ip
.dns_servers
))
785 fprintf(f
, "# Interface %s\n", iface
->name
);
786 write_resolv_conf_entries(f
, &iface
->config_ip
);
787 if (!iface
->proto_ip
.no_dns
)
788 write_resolv_conf_entries(f
, &iface
->proto_ip
);
791 if (rename(path
, resolv_conf
) < 0) {
792 D(INTERFACE
, "Failed to replace %s\n", resolv_conf
);
797 void interface_ip_set_enabled(struct interface_ip_settings
*ip
, bool enabled
)
799 struct device_addr
*addr
;
800 struct device_route
*route
;
803 ip
->enabled
= enabled
;
804 dev
= ip
->iface
->l3_dev
.dev
;
808 vlist_for_each_element(&ip
->addr
, addr
, node
) {
809 if (addr
->enabled
== enabled
)
813 system_add_address(dev
, addr
);
815 system_del_address(dev
, addr
);
816 addr
->enabled
= enabled
;
819 vlist_for_each_element(&ip
->route
, route
, node
) {
820 bool _enabled
= enabled
;
822 if (!enable_route(ip
, route
))
825 if (route
->enabled
== _enabled
)
829 if (!(route
->flags
& DEVROUTE_METRIC
))
830 route
->metric
= ip
->iface
->metric
;
832 system_add_route(dev
, route
);
834 system_del_route(dev
, route
);
835 route
->enabled
= _enabled
;
840 interface_ip_update_start(struct interface_ip_settings
*ip
)
842 if (ip
!= &ip
->iface
->config_ip
) {
843 vlist_simple_update(&ip
->dns_servers
);
844 vlist_simple_update(&ip
->dns_search
);
846 vlist_update(&ip
->route
);
847 vlist_update(&ip
->addr
);
848 vlist_update(&ip
->prefix
);
852 interface_ip_update_complete(struct interface_ip_settings
*ip
)
854 vlist_simple_flush(&ip
->dns_servers
);
855 vlist_simple_flush(&ip
->dns_search
);
856 vlist_flush(&ip
->route
);
857 vlist_flush(&ip
->addr
);
858 vlist_flush(&ip
->prefix
);
859 interface_write_resolv_conf();
863 interface_ip_flush(struct interface_ip_settings
*ip
)
865 if (ip
== &ip
->iface
->proto_ip
)
866 vlist_flush_all(&ip
->iface
->host_routes
);
867 vlist_simple_flush_all(&ip
->dns_servers
);
868 vlist_simple_flush_all(&ip
->dns_search
);
869 vlist_flush_all(&ip
->route
);
870 vlist_flush_all(&ip
->addr
);
871 vlist_flush_all(&ip
->prefix
);
875 __interface_ip_init(struct interface_ip_settings
*ip
, struct interface
*iface
)
879 vlist_simple_init(&ip
->dns_search
, struct dns_search_domain
, node
);
880 vlist_simple_init(&ip
->dns_servers
, struct dns_server
, node
);
881 vlist_init(&ip
->route
, route_cmp
, interface_update_proto_route
);
882 vlist_init(&ip
->addr
, addr_cmp
, interface_update_proto_addr
);
883 vlist_init(&ip
->prefix
, prefix_cmp
, interface_update_prefix
);
887 interface_ip_init(struct interface
*iface
)
889 __interface_ip_init(&iface
->proto_ip
, iface
);
890 __interface_ip_init(&iface
->config_ip
, iface
);
891 vlist_init(&iface
->host_routes
, route_cmp
, interface_update_host_route
);