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>
21 #include <netinet/in.h>
25 #include "interface.h"
26 #include "interface-ip.h"
47 static const struct blobmsg_policy route_attr
[__ROUTE_MAX
] = {
48 [ROUTE_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
49 [ROUTE_TARGET
] = { .name
= "target", .type
= BLOBMSG_TYPE_STRING
},
50 [ROUTE_MASK
] = { .name
= "netmask", .type
= BLOBMSG_TYPE_STRING
},
51 [ROUTE_GATEWAY
] = { .name
= "gateway", .type
= BLOBMSG_TYPE_STRING
},
52 [ROUTE_METRIC
] = { .name
= "metric", .type
= BLOBMSG_TYPE_INT32
},
53 [ROUTE_MTU
] = { .name
= "mtu", .type
= BLOBMSG_TYPE_INT32
},
54 [ROUTE_TABLE
] = { .name
= "table", .type
= BLOBMSG_TYPE_STRING
},
55 [ROUTE_VALID
] = { .name
= "valid", .type
= BLOBMSG_TYPE_INT32
},
56 [ROUTE_SOURCE
] = { .name
= "source", .type
= BLOBMSG_TYPE_STRING
},
57 [ROUTE_ONLINK
] = { .name
= "onlink", .type
= BLOBMSG_TYPE_BOOL
},
58 [ROUTE_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
59 [ROUTE_PROTO
] = { .name
= "proto", .type
= BLOBMSG_TYPE_STRING
},
62 const struct uci_blob_param_list route_attr_list
= {
63 .n_params
= __ROUTE_MAX
,
68 struct list_head prefixes
= LIST_HEAD_INIT(prefixes
);
69 static struct device_prefix
*ula_prefix
= NULL
;
70 static struct uloop_timeout valid_until_timeout
;
74 clear_if_addr(union if_addr
*a
, int mask
)
76 int m_bytes
= (mask
+ 7) / 8;
77 uint8_t m_clear
= (1 << (m_bytes
* 8 - mask
)) - 1;
78 uint8_t *p
= (uint8_t *) a
;
80 if (m_bytes
< sizeof(*a
))
81 memset(p
+ m_bytes
, 0, sizeof(*a
) - m_bytes
);
83 p
[m_bytes
- 1] &= ~m_clear
;
87 match_if_addr(union if_addr
*a1
, union if_addr
*a2
, int mask
)
89 union if_addr
*p1
, *p2
;
91 p1
= alloca(sizeof(*a1
));
92 p2
= alloca(sizeof(*a2
));
94 memcpy(p1
, a1
, sizeof(*a1
));
95 clear_if_addr(p1
, mask
);
96 memcpy(p2
, a2
, sizeof(*a2
));
97 clear_if_addr(p2
, mask
);
99 return !memcmp(p1
, p2
, sizeof(*p1
));
102 static int set_ip_source_policy(bool add
, bool v6
, unsigned int priority
,
103 const union if_addr
*addr
, uint8_t mask
, unsigned int table
,
104 struct interface
*in_iface
, const char *action
, bool src
)
106 struct iprule rule
= {
107 .flags
= IPRULE_PRIORITY
,
113 rule
.flags
|= IPRULE_SRC
;
114 rule
.src_addr
= *addr
;
115 rule
.src_mask
= mask
;
117 rule
.flags
|= IPRULE_DEST
;
118 rule
.dest_addr
= *addr
;
119 rule
.dest_mask
= mask
;
124 rule
.flags
|= IPRULE_LOOKUP
;
130 rule
.flags
|= IPRULE_ACTION
;
131 system_resolve_iprule_action(action
, &rule
.action
);
134 if (in_iface
&& in_iface
->l3_dev
.dev
) {
135 rule
.flags
|= IPRULE_IN
;
136 strcpy(rule
.in_dev
, in_iface
->l3_dev
.dev
->ifname
);
139 rule
.flags
|= (v6
) ? IPRULE_INET6
: IPRULE_INET4
;
141 return (add
) ? system_add_iprule(&rule
) : system_del_iprule(&rule
);
144 static int set_ip_lo_policy(bool add
, bool v6
, struct interface
*iface
)
146 struct iprule rule
= {
147 .flags
= IPRULE_IN
| IPRULE_LOOKUP
| IPRULE_PRIORITY
,
148 .priority
= IPRULE_PRIORITY_NW
+ iface
->l3_dev
.dev
->ifindex
,
149 .lookup
= (v6
) ? iface
->ip6table
: iface
->ip4table
,
156 rule
.flags
|= (v6
) ? IPRULE_INET6
: IPRULE_INET4
;
158 return (add
) ? system_add_iprule(&rule
) : system_del_iprule(&rule
);
162 __find_ip_addr_target(struct interface_ip_settings
*ip
, union if_addr
*a
, bool v6
)
164 struct device_addr
*addr
;
166 vlist_for_each_element(&ip
->addr
, addr
, node
) {
170 if (v6
!= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
))
173 /* Handle offlink addresses correctly */
174 unsigned int mask
= addr
->mask
;
175 if ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
&&
176 (addr
->flags
& DEVADDR_OFFLINK
))
179 if (!match_if_addr(&addr
->addr
, a
, mask
))
189 __find_ip_route_target(struct interface_ip_settings
*ip
, union if_addr
*a
,
190 bool v6
, struct device_route
**res
)
192 struct device_route
*route
;
194 vlist_for_each_element(&ip
->route
, route
, node
) {
198 if (v6
!= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
))
201 if (!match_if_addr(&route
->addr
, a
, route
->mask
))
204 if (route
->flags
& DEVROUTE_TABLE
)
207 if (!*res
|| route
->mask
> (*res
)->mask
)
213 interface_ip_find_addr_target(struct interface
*iface
, union if_addr
*a
, bool v6
)
215 return __find_ip_addr_target(&iface
->proto_ip
, a
, v6
) ||
216 __find_ip_addr_target(&iface
->config_ip
, a
, v6
);
220 interface_ip_find_route_target(struct interface
*iface
, union if_addr
*a
,
221 bool v6
, struct device_route
**route
)
223 __find_ip_route_target(&iface
->proto_ip
, a
, v6
, route
);
224 __find_ip_route_target(&iface
->config_ip
, a
, v6
, route
);
228 interface_ip_add_target_route(union if_addr
*addr
, bool v6
, struct interface
*iface
)
230 struct device_route
*route
, *r_next
= NULL
;
231 bool defaultroute_target
= false;
232 union if_addr addr_zero
;
233 int addrsize
= v6
? sizeof(addr
->in6
) : sizeof(addr
->in
);
235 memset(&addr_zero
, 0, sizeof(addr_zero
));
236 if (memcmp(&addr_zero
, addr
, addrsize
) == 0)
237 defaultroute_target
= true;
240 /* look for locally addressable target first */
241 if (interface_ip_find_addr_target(iface
, addr
, v6
))
244 /* do not stop at the first route, let the lookup compare
245 * masks to find the best match */
246 interface_ip_find_route_target(iface
, addr
, v6
, &r_next
);
248 vlist_for_each_element(&interfaces
, iface
, node
) {
249 /* look for locally addressable target first */
250 if (interface_ip_find_addr_target(iface
, addr
, v6
))
253 /* do not stop at the first route, let the lookup compare
254 * masks to find the best match */
255 interface_ip_find_route_target(iface
, addr
, v6
, &r_next
);
262 iface
= r_next
->iface
;
263 if (defaultroute_target
)
266 route
= calloc(1, sizeof(*route
));
270 route
->flags
= v6
? DEVADDR_INET6
: DEVADDR_INET4
;
271 route
->mask
= v6
? 128 : 32;
272 memcpy(&route
->addr
, addr
, addrsize
);
273 memcpy(&route
->nexthop
, &r_next
->nexthop
, sizeof(route
->nexthop
));
274 route
->mtu
= r_next
->mtu
;
275 route
->metric
= r_next
->metric
;
276 route
->table
= r_next
->table
;
277 route
->iface
= iface
;
278 vlist_add(&iface
->host_routes
, &route
->node
, route
);
284 interface_set_route_info(struct interface
*iface
, struct device_route
*route
)
286 bool v6
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
);
291 if (!(route
->flags
& DEVROUTE_METRIC
))
292 route
->metric
= iface
->metric
;
294 if (!(route
->flags
& DEVROUTE_TABLE
)) {
295 route
->table
= (v6
) ? iface
->ip6table
: iface
->ip4table
;
297 route
->flags
|= DEVROUTE_SRCTABLE
;
302 interface_ip_add_route(struct interface
*iface
, struct blob_attr
*attr
, bool v6
)
304 struct interface_ip_settings
*ip
;
305 struct blob_attr
*tb
[__ROUTE_MAX
], *cur
;
306 struct device_route
*route
;
307 int af
= v6
? AF_INET6
: AF_INET
;
309 blobmsg_parse(route_attr
, __ROUTE_MAX
, tb
, blobmsg_data(attr
), blobmsg_data_len(attr
));
312 if ((cur
= tb
[ROUTE_INTERFACE
]) == NULL
)
315 iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
319 ip
= &iface
->config_ip
;
321 ip
= &iface
->proto_ip
;
324 route
= calloc(1, sizeof(*route
));
328 route
->flags
= v6
? DEVADDR_INET6
: DEVADDR_INET4
;
329 route
->mask
= v6
? 128 : 32;
330 if ((cur
= tb
[ROUTE_MASK
]) != NULL
) {
331 route
->mask
= parse_netmask_string(blobmsg_data(cur
), v6
);
332 if (route
->mask
> (v6
? 128 : 32))
336 if ((cur
= tb
[ROUTE_TARGET
]) != NULL
) {
337 if (!parse_ip_and_netmask(af
, blobmsg_data(cur
), &route
->addr
, &route
->mask
)) {
338 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur
));
343 if ((cur
= tb
[ROUTE_GATEWAY
]) != NULL
) {
344 if (!inet_pton(af
, blobmsg_data(cur
), &route
->nexthop
)) {
345 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur
));
350 if ((cur
= tb
[ROUTE_METRIC
]) != NULL
) {
351 route
->metric
= blobmsg_get_u32(cur
);
352 route
->flags
|= DEVROUTE_METRIC
;
355 if ((cur
= tb
[ROUTE_MTU
]) != NULL
) {
356 route
->mtu
= blobmsg_get_u32(cur
);
357 route
->flags
|= DEVROUTE_MTU
;
360 /* Use source-based routing */
361 if ((cur
= tb
[ROUTE_SOURCE
]) != NULL
) {
362 char *saveptr
, *source
= alloca(blobmsg_data_len(cur
));
363 memcpy(source
, blobmsg_data(cur
), blobmsg_data_len(cur
));
365 const char *addr
= strtok_r(source
, "/", &saveptr
);
366 const char *mask
= strtok_r(NULL
, "/", &saveptr
);
368 if (!addr
|| inet_pton(af
, addr
, &route
->source
) < 1) {
369 DPRINTF("Failed to parse route source: %s\n", addr
? addr
: "NULL");
373 route
->sourcemask
= (mask
) ? atoi(mask
) : ((af
== AF_INET6
) ? 128 : 32);
376 if ((cur
= tb
[ROUTE_ONLINK
]) != NULL
&& blobmsg_get_bool(cur
))
377 route
->flags
|= DEVROUTE_ONLINK
;
379 if ((cur
= tb
[ROUTE_TABLE
]) != NULL
) {
380 if (!system_resolve_rt_table(blobmsg_data(cur
), &route
->table
)) {
381 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur
));
385 /* only set the table flag if not using the main (default) table */
386 if (system_is_default_rt_table(route
->table
))
390 route
->flags
|= DEVROUTE_TABLE
;
393 if ((cur
= tb
[ROUTE_VALID
]) != NULL
) {
394 int64_t valid
= blobmsg_get_u32(cur
);
395 int64_t valid_until
= valid
+ (int64_t)system_get_rtime();
396 if (valid_until
<= LONG_MAX
&& valid
!= 0xffffffffLL
) /* Catch overflow */
397 route
->valid_until
= valid_until
;
400 if ((cur
= tb
[ROUTE_TYPE
]) != NULL
) {
401 if (!system_resolve_rt_type(blobmsg_data(cur
), &route
->type
)) {
402 DPRINTF("Failed to resolve routing type: %s\n", (char *) blobmsg_data(cur
));
405 route
->flags
|= DEVROUTE_TYPE
;
408 if ((cur
= tb
[ROUTE_PROTO
]) != NULL
) {
409 if (!system_resolve_rt_proto(blobmsg_data(cur
), &route
->proto
)) {
410 DPRINTF("Failed to resolve proto type: %s\n", (char *) blobmsg_data(cur
));
413 route
->flags
|= DEVROUTE_PROTO
;
416 interface_set_route_info(iface
, route
);
417 vlist_add(&ip
->route
, &route
->node
, route
);
425 addr_cmp(const void *k1
, const void *k2
, void *ptr
)
427 return memcmp(k1
, k2
, sizeof(struct device_addr
) -
428 offsetof(struct device_addr
, flags
));
432 route_cmp(const void *k1
, const void *k2
, void *ptr
)
434 const struct device_route
*r1
= k1
, *r2
= k2
;
436 if (r1
->mask
!= r2
->mask
)
437 return r2
->mask
- r1
->mask
;
439 if (r1
->metric
!= r2
->metric
)
440 return r1
->metric
- r2
->metric
;
442 if (r1
->flags
!= r2
->flags
)
443 return r2
->flags
- r1
->flags
;
445 if (r1
->sourcemask
!= r2
->sourcemask
)
446 return r1
->sourcemask
- r2
->sourcemask
;
448 if (r1
->table
!= r2
->table
)
449 return r1
->table
- r2
->table
;
451 int maskcmp
= memcmp(&r1
->source
, &r2
->source
, sizeof(r1
->source
));
455 return memcmp(&r1
->addr
, &r2
->addr
, sizeof(r1
->addr
));
459 prefix_cmp(const void *k1
, const void *k2
, void *ptr
)
461 return memcmp(k1
, k2
, offsetof(struct device_prefix
, pclass
) -
462 offsetof(struct device_prefix
, addr
));
466 interface_handle_subnet_route(struct interface
*iface
, struct device_addr
*addr
, bool add
)
468 struct device
*dev
= iface
->l3_dev
.dev
;
469 struct device_route
*r
= &addr
->subnet
;
471 if (addr
->flags
& DEVADDR_OFFLINK
)
475 if (!addr
->subnet
.iface
)
478 system_del_route(dev
, r
);
479 memset(r
, 0, sizeof(*r
));
484 r
->flags
= addr
->flags
;
485 r
->mask
= addr
->mask
;
486 memcpy(&r
->addr
, &addr
->addr
, sizeof(r
->addr
));
487 clear_if_addr(&r
->addr
, r
->mask
);
489 if (!system_resolve_rt_proto("kernel", &r
->proto
))
492 r
->flags
|= DEVROUTE_PROTO
;
493 system_del_route(dev
, r
);
495 r
->flags
&= ~DEVROUTE_PROTO
;
496 interface_set_route_info(iface
, r
);
498 system_add_route(dev
, r
);
502 interface_add_addr_rules(struct device_addr
*addr
, bool enabled
)
504 bool v6
= (addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
;
506 set_ip_source_policy(enabled
, v6
, IPRULE_PRIORITY_ADDR
, &addr
->addr
,
507 (v6
) ? 128 : 32, addr
->policy_table
, NULL
, NULL
,
509 set_ip_source_policy(enabled
, v6
, IPRULE_PRIORITY_ADDR_MASK
,
510 &addr
->addr
, addr
->mask
, addr
->policy_table
, NULL
,
515 interface_update_proto_addr(struct vlist_tree
*tree
,
516 struct vlist_node
*node_new
,
517 struct vlist_node
*node_old
)
519 struct interface_ip_settings
*ip
;
520 struct interface
*iface
;
522 struct device_addr
*a_new
= NULL
, *a_old
= NULL
;
523 bool replace
= false;
527 ip
= container_of(tree
, struct interface_ip_settings
, addr
);
529 dev
= iface
->l3_dev
.dev
;
531 if (!node_new
|| !node_old
)
532 iface
->updated
|= IUF_ADDRESS
;
535 a_new
= container_of(node_new
, struct device_addr
, node
);
537 if ((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
&&
540 /* /31 and /32 addressing need 255.255.255.255
541 * as broadcast address. */
542 if (a_new
->mask
>= 31) {
543 a_new
->broadcast
= (uint32_t) ~0;
546 uint32_t *a
= (uint32_t *) &a_new
->addr
;
548 mask
>>= a_new
->mask
;
549 a_new
->broadcast
= *a
| htonl(mask
);
555 a_old
= container_of(node_old
, struct device_addr
, node
);
557 if (a_new
&& a_old
) {
560 if (a_old
->flags
!= a_new
->flags
|| a_old
->failed
)
563 if (a_old
->valid_until
!= a_new
->valid_until
||
564 a_old
->preferred_until
!= a_new
->preferred_until
)
567 if (((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) &&
568 (a_new
->broadcast
!= a_old
->broadcast
||
569 a_new
->point_to_point
!= a_old
->point_to_point
))
574 if (a_old
->enabled
&& !keep
) {
576 * This is needed for source routing to work correctly. If a device
577 * has two connections to a network using the same subnet, adding
578 * only the network-rule will cause packets to be routed through the
579 * first matching network (source IP matches both masks)
581 if (a_old
->policy_table
)
582 interface_add_addr_rules(a_old
, false);
584 if (!(a_old
->flags
& DEVADDR_EXTERNAL
)) {
585 interface_handle_subnet_route(iface
, a_old
, false);
586 system_del_address(dev
, a_old
);
594 a_new
->enabled
= true;
596 if ((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
)
599 a_new
->policy_table
= (v6
) ? iface
->ip6table
: iface
->ip4table
;
601 if (!keep
|| replace
) {
602 if (!(a_new
->flags
& DEVADDR_EXTERNAL
)) {
603 if (system_add_address(dev
, a_new
))
604 a_new
->failed
= true;
606 if (iface
->metric
|| a_new
->policy_table
)
607 interface_handle_subnet_route(iface
, a_new
, true);
611 if (a_new
->policy_table
)
612 interface_add_addr_rules(a_new
, true);
619 enable_route(struct interface_ip_settings
*ip
, struct device_route
*route
)
621 if (ip
->no_defaultroute
&& !route
->mask
)
628 interface_update_proto_route(struct vlist_tree
*tree
,
629 struct vlist_node
*node_new
,
630 struct vlist_node
*node_old
)
632 struct interface_ip_settings
*ip
;
633 struct interface
*iface
;
635 struct device_route
*route_old
, *route_new
;
638 ip
= container_of(tree
, struct interface_ip_settings
, route
);
640 dev
= iface
->l3_dev
.dev
;
642 if (!node_new
|| !node_old
)
643 iface
->updated
|= IUF_ROUTE
;
645 route_old
= container_of(node_old
, struct device_route
, node
);
646 route_new
= container_of(node_new
, struct device_route
, node
);
648 if (node_old
&& node_new
)
649 keep
= !memcmp(&route_old
->nexthop
, &route_new
->nexthop
, sizeof(route_old
->nexthop
)) &&
650 (route_old
->mtu
== route_new
->mtu
) && (route_old
->type
== route_new
->type
) &&
651 (route_old
->proto
== route_new
->proto
) && !route_old
->failed
;
654 if (!(route_old
->flags
& DEVADDR_EXTERNAL
) && route_old
->enabled
&& !keep
)
655 system_del_route(dev
, route_old
);
661 bool _enabled
= enable_route(ip
, route_new
);
663 if (!(route_new
->flags
& DEVADDR_EXTERNAL
) && !keep
&& _enabled
)
664 if (system_add_route(dev
, route_new
))
665 route_new
->failed
= true;
667 route_new
->iface
= iface
;
668 route_new
->enabled
= _enabled
;
673 interface_update_host_route(struct vlist_tree
*tree
,
674 struct vlist_node
*node_new
,
675 struct vlist_node
*node_old
)
677 struct interface
*iface
;
679 struct device_route
*route_old
, *route_new
;
681 iface
= container_of(tree
, struct interface
, host_routes
);
682 dev
= iface
->l3_dev
.dev
;
684 route_old
= container_of(node_old
, struct device_route
, node
);
685 route_new
= container_of(node_new
, struct device_route
, node
);
688 system_del_route(dev
, route_old
);
693 if (system_add_route(dev
, route_new
))
694 route_new
->failed
= true;
699 random_ifaceid(struct in6_addr
*addr
)
701 static bool initialized
= false;
706 gettimeofday(&t
, NULL
);
707 seed
= t
.tv_sec
^ t
.tv_usec
^ getpid();
711 addr
->s6_addr32
[2] = (uint32_t)mrand48();
712 addr
->s6_addr32
[3] = (uint32_t)mrand48();
716 eui64_ifaceid(struct interface
*iface
, struct in6_addr
*addr
)
718 struct device_settings st
;
720 device_merge_settings(iface
->l3_dev
.dev
, &st
);
722 if (!(st
.flags
& DEV_OPT_MACADDR
))
725 /* get mac address */
726 uint8_t *ifaceid
= addr
->s6_addr
+ 8;
727 memcpy(ifaceid
, st
.macaddr
, 3);
728 memcpy(ifaceid
+ 5, st
.macaddr
+ 3, 3);
737 generate_ifaceid(struct interface
*iface
, struct in6_addr
*addr
)
741 /* generate new iface id */
742 switch (iface
->assignment_iface_id_selection
) {
745 /* copy host part from assignment_fixed_iface_id */
746 memcpy(addr
->s6_addr
+ 8, iface
->assignment_fixed_iface_id
.s6_addr
+ 8, 8);
749 /* randomize last 64 bits */
750 random_ifaceid(addr
);
754 ret
= eui64_ifaceid(iface
, addr
);
764 interface_set_prefix_address(struct device_prefix_assignment
*assignment
,
765 const struct device_prefix
*prefix
, struct interface
*iface
, bool add
)
767 const struct interface
*uplink
= prefix
->iface
;
768 if (!iface
->l3_dev
.dev
)
771 struct device
*l3_downlink
= iface
->l3_dev
.dev
;
773 struct device_addr addr
;
774 struct device_route route
;
775 memset(&addr
, 0, sizeof(addr
));
776 memset(&route
, 0, sizeof(route
));
778 addr
.addr
.in6
= assignment
->addr
;
779 addr
.mask
= assignment
->length
;
780 addr
.flags
= DEVADDR_INET6
| DEVADDR_OFFLINK
;
781 addr
.preferred_until
= prefix
->preferred_until
;
782 addr
.valid_until
= prefix
->valid_until
;
784 route
.flags
= DEVADDR_INET6
;
785 route
.mask
= addr
.mask
< 64 ? 64 : addr
.mask
;
786 route
.addr
= addr
.addr
;
788 if (!add
&& assignment
->enabled
) {
789 time_t now
= system_get_rtime();
791 addr
.preferred_until
= now
;
792 if (!addr
.valid_until
|| addr
.valid_until
- now
> 7200)
793 addr
.valid_until
= now
+ 7200;
796 set_ip_source_policy(false, true, IPRULE_PRIORITY_ADDR_MASK
, &addr
.addr
,
797 addr
.mask
< 64 ? 64 : addr
.mask
, iface
->ip6table
, NULL
, NULL
, false);
800 if (prefix
->iface
->ip6table
)
801 set_ip_source_policy(false, true, IPRULE_PRIORITY_NW
, &addr
.addr
,
802 addr
.mask
, prefix
->iface
->ip6table
, iface
, NULL
, true);
804 set_ip_source_policy(false, true, IPRULE_PRIORITY_REJECT
, &addr
.addr
,
805 addr
.mask
, 0, iface
, "unreachable", true);
808 clear_if_addr(&route
.addr
, route
.mask
);
809 interface_set_route_info(iface
, &route
);
811 system_del_route(l3_downlink
, &route
);
812 system_add_address(l3_downlink
, &addr
);
814 assignment
->addr
= in6addr_any
;
815 assignment
->enabled
= false;
816 } else if (add
&& (iface
->state
== IFS_UP
|| iface
->state
== IFS_SETUP
)) {
817 if (IN6_IS_ADDR_UNSPECIFIED(&addr
.addr
.in6
)) {
818 addr
.addr
.in6
= prefix
->addr
;
819 addr
.addr
.in6
.s6_addr32
[1] |= htonl(assignment
->assigned
);
820 if (!generate_ifaceid(iface
, &addr
.addr
.in6
))
823 assignment
->addr
= addr
.addr
.in6
;
824 route
.addr
= addr
.addr
;
827 if (system_add_address(l3_downlink
, &addr
))
830 if (!assignment
->enabled
) {
832 set_ip_source_policy(true, true, IPRULE_PRIORITY_ADDR_MASK
, &addr
.addr
,
833 addr
.mask
< 64 ? 64 : addr
.mask
, iface
->ip6table
, NULL
, NULL
, false);
836 set_ip_source_policy(true, true, IPRULE_PRIORITY_REJECT
, &addr
.addr
,
837 addr
.mask
, 0, iface
, "unreachable", true);
839 if (prefix
->iface
->ip6table
)
840 set_ip_source_policy(true, true, IPRULE_PRIORITY_NW
, &addr
.addr
,
841 addr
.mask
, prefix
->iface
->ip6table
, iface
, NULL
, true);
845 clear_if_addr(&route
.addr
, route
.mask
);
846 interface_set_route_info(iface
, &route
);
848 system_add_route(l3_downlink
, &route
);
850 if (uplink
&& uplink
->l3_dev
.dev
&& !(l3_downlink
->settings
.flags
& DEV_OPT_MTU6
)) {
851 int mtu
= system_update_ipv6_mtu(uplink
->l3_dev
.dev
, 0);
852 int mtu_old
= system_update_ipv6_mtu(l3_downlink
, 0);
854 if (mtu
> 0 && mtu_old
!= mtu
) {
855 if (system_update_ipv6_mtu(l3_downlink
, mtu
) < 0)
856 netifd_log_message(L_WARNING
, "Failed to set IPv6 mtu to %d"
857 "on interface '%s'\n", mtu
, iface
->name
);
861 assignment
->enabled
= true;
865 static bool interface_prefix_assign(struct list_head
*list
,
866 struct device_prefix_assignment
*assign
)
868 int32_t current
= 0, asize
= (1 << (64 - assign
->length
)) - 1;
869 struct device_prefix_assignment
*c
;
870 list_for_each_entry(c
, list
, head
) {
871 if (assign
->assigned
!= -1) {
872 if (assign
->assigned
>= current
&& assign
->assigned
+ asize
< c
->assigned
) {
873 list_add_tail(&assign
->head
, &c
->head
);
876 } else if (assign
->assigned
== -1) {
877 current
= (current
+ asize
) & (~asize
);
878 if (current
+ asize
< c
->assigned
) {
879 assign
->assigned
= current
;
880 list_add_tail(&assign
->head
, &c
->head
);
884 current
= (c
->assigned
+ (1 << (64 - c
->length
)));
890 * Sorting of assignment entries:
891 * Primary on assignment length: smallest assignment first
892 * Secondary on assignment weight: highest weight first
893 * Finally alphabetical order of interface names
895 static int prefix_assignment_cmp(const void *k1
, const void *k2
, void *ptr
)
897 const struct device_prefix_assignment
*a1
= k1
, *a2
= k2
;
899 if (a1
->length
!= a2
->length
)
900 return a1
->length
- a2
->length
;
902 if (a1
->weight
!= a2
->weight
)
903 return a2
->weight
- a1
->weight
;
905 return strcmp(a1
->name
, a2
->name
);
908 static void interface_update_prefix_assignments(struct device_prefix
*prefix
, bool setup
)
910 struct device_prefix_assignment
*c
;
911 struct interface
*iface
;
913 /* Delete all assignments */
914 while (!list_empty(&prefix
->assignments
)) {
915 c
= list_first_entry(&prefix
->assignments
,
916 struct device_prefix_assignment
, head
);
917 if ((iface
= vlist_find(&interfaces
, c
->name
, iface
, node
)))
918 interface_set_prefix_address(c
, prefix
, iface
, false);
926 /* End-of-assignment sentinel */
927 c
= malloc(sizeof(*c
) + 1);
931 c
->assigned
= 1 << (64 - prefix
->length
);
934 c
->addr
= in6addr_any
;
935 list_add(&c
->head
, &prefix
->assignments
);
937 /* Excluded prefix */
938 if (prefix
->excl_length
> 0) {
939 const char name
[] = "!excluded";
940 c
= malloc(sizeof(*c
) + sizeof(name
));
942 c
->assigned
= ntohl(prefix
->excl_addr
.s6_addr32
[1]) &
943 ((1 << (64 - prefix
->length
)) - 1);
944 c
->length
= prefix
->excl_length
;
945 c
->addr
= in6addr_any
;
946 memcpy(c
->name
, name
, sizeof(name
));
947 list_add(&c
->head
, &prefix
->assignments
);
951 bool assigned_any
= false;
953 struct avl_node node
;
955 struct avl_tree assign_later
;
957 avl_init(&assign_later
, prefix_assignment_cmp
, false, NULL
);
959 vlist_for_each_element(&interfaces
, iface
, node
) {
960 if (iface
->assignment_length
< 48 ||
961 iface
->assignment_length
> 64)
964 /* Test whether there is a matching class */
965 if (!list_empty(&iface
->assignment_classes
)) {
968 struct interface_assignment_class
*c
;
969 list_for_each_entry(c
, &iface
->assignment_classes
, head
) {
970 if (!strcmp(c
->name
, prefix
->pclass
)) {
980 size_t namelen
= strlen(iface
->name
) + 1;
981 c
= malloc(sizeof(*c
) + namelen
);
985 c
->length
= iface
->assignment_length
;
986 c
->assigned
= iface
->assignment_hint
;
987 c
->weight
= iface
->assignment_weight
;
988 c
->addr
= in6addr_any
;
990 memcpy(c
->name
, iface
->name
, namelen
);
992 /* First process all custom assignments, put all others in later-list */
993 if (c
->assigned
== -1 || !interface_prefix_assign(&prefix
->assignments
, c
)) {
994 if (c
->assigned
!= -1) {
996 netifd_log_message(L_WARNING
, "Failed to assign requested subprefix "
997 "of size %hhu for %s, trying other\n", c
->length
, c
->name
);
1000 entry
= calloc(1, sizeof(*entry
));
1006 entry
->node
.key
= c
;
1007 avl_insert(&assign_later
, &entry
->node
);
1010 if (c
->assigned
!= -1)
1011 assigned_any
= true;
1014 /* Then try to assign all other + failed custom assignments */
1015 avl_for_each_element_safe(&assign_later
, entry
, node
, n_entry
) {
1016 bool assigned
= false;
1018 c
= (struct device_prefix_assignment
*)entry
->node
.key
;
1019 avl_delete(&assign_later
, &entry
->node
);
1022 assigned
= interface_prefix_assign(&prefix
->assignments
, c
);
1023 } while (!assigned
&& ++c
->length
<= 64);
1026 netifd_log_message(L_WARNING
, "Failed to assign subprefix "
1027 "of size %hhu for %s\n", c
->length
, c
->name
);
1030 assigned_any
= true;
1035 list_for_each_entry(c
, &prefix
->assignments
, head
)
1036 if ((iface
= vlist_find(&interfaces
, c
->name
, iface
, node
)))
1037 interface_set_prefix_address(c
, prefix
, iface
, true);
1040 netifd_log_message(L_WARNING
, "You have delegated IPv6-prefixes but haven't assigned them "
1041 "to any interface. Did you forget to set option ip6assign on your lan-interfaces?");
1045 void interface_refresh_assignments(bool hint
)
1047 static bool refresh
= false;
1048 if (!hint
&& refresh
) {
1049 struct device_prefix
*p
;
1050 list_for_each_entry(p
, &prefixes
, head
)
1051 interface_update_prefix_assignments(p
, true);
1056 void interface_update_prefix_delegation(struct interface_ip_settings
*ip
)
1058 struct device_prefix
*prefix
;
1060 vlist_for_each_element(&ip
->prefix
, prefix
, node
) {
1061 interface_update_prefix_assignments(prefix
, !ip
->no_delegation
);
1063 if (ip
->no_delegation
) {
1064 if (prefix
->head
.next
)
1065 list_del(&prefix
->head
);
1067 list_add(&prefix
->head
, &prefixes
);
1072 interface_update_prefix(struct vlist_tree
*tree
,
1073 struct vlist_node
*node_new
,
1074 struct vlist_node
*node_old
)
1076 struct device_prefix
*prefix_old
, *prefix_new
;
1077 prefix_old
= container_of(node_old
, struct device_prefix
, node
);
1078 prefix_new
= container_of(node_new
, struct device_prefix
, node
);
1080 struct interface_ip_settings
*ip
= container_of(tree
, struct interface_ip_settings
, prefix
);
1081 if (tree
&& (!node_new
|| !node_old
))
1082 ip
->iface
->updated
|= IUF_PREFIX
;
1084 struct device_route route
;
1085 memset(&route
, 0, sizeof(route
));
1086 route
.flags
= DEVADDR_INET6
;
1087 route
.metric
= INT32_MAX
;
1088 route
.mask
= (node_new
) ? prefix_new
->length
: prefix_old
->length
;
1089 route
.addr
.in6
= (node_new
) ? prefix_new
->addr
: prefix_old
->addr
;
1092 struct device_prefix_assignment
*c
;
1093 struct interface
*iface
;
1095 if (node_old
&& node_new
) {
1096 /* Move assignments and refresh addresses to update valid times */
1097 list_splice(&prefix_old
->assignments
, &prefix_new
->assignments
);
1099 list_for_each_entry(c
, &prefix_new
->assignments
, head
)
1100 if ((iface
= vlist_find(&interfaces
, c
->name
, iface
, node
)))
1101 interface_set_prefix_address(c
, prefix_new
, iface
, true);
1103 if (prefix_new
->preferred_until
!= prefix_old
->preferred_until
||
1104 prefix_new
->valid_until
!= prefix_old
->valid_until
)
1105 ip
->iface
->updated
|= IUF_PREFIX
;
1106 } else if (node_new
) {
1107 /* Set null-route to avoid routing loops */
1108 system_add_route(NULL
, &route
);
1110 if (!prefix_new
->iface
|| !prefix_new
->iface
->proto_ip
.no_delegation
)
1111 interface_update_prefix_assignments(prefix_new
, true);
1112 } else if (node_old
) {
1113 /* Remove null-route */
1114 interface_update_prefix_assignments(prefix_old
, false);
1115 system_del_route(NULL
, &route
);
1119 if (prefix_old
->head
.next
)
1120 list_del(&prefix_old
->head
);
1124 if (node_new
&& (!prefix_new
->iface
|| !prefix_new
->iface
->proto_ip
.no_delegation
))
1125 list_add(&prefix_new
->head
, &prefixes
);
1129 struct device_prefix
*
1130 interface_ip_add_device_prefix(struct interface
*iface
, struct in6_addr
*addr
,
1131 uint8_t length
, time_t valid_until
, time_t preferred_until
,
1132 struct in6_addr
*excl_addr
, uint8_t excl_length
, const char *pclass
)
1135 pclass
= (iface
) ? iface
->name
: "local";
1137 struct device_prefix
*prefix
= calloc(1, sizeof(*prefix
) + strlen(pclass
) + 1);
1141 prefix
->length
= length
;
1142 prefix
->addr
= *addr
;
1143 prefix
->preferred_until
= preferred_until
;
1144 prefix
->valid_until
= valid_until
;
1145 prefix
->iface
= iface
;
1146 INIT_LIST_HEAD(&prefix
->assignments
);
1149 prefix
->excl_addr
= *excl_addr
;
1150 prefix
->excl_length
= excl_length
;
1153 strcpy(prefix
->pclass
, pclass
);
1156 vlist_add(&iface
->proto_ip
.prefix
, &prefix
->node
, &prefix
->addr
);
1158 interface_update_prefix(NULL
, &prefix
->node
, NULL
);
1164 interface_ip_set_ula_prefix(const char *prefix
)
1166 char buf
[INET6_ADDRSTRLEN
+ 4] = {0}, *saveptr
;
1168 strncpy(buf
, prefix
, sizeof(buf
) - 1);
1169 char *prefixaddr
= strtok_r(buf
, "/", &saveptr
);
1171 struct in6_addr addr
;
1172 if (!prefixaddr
|| inet_pton(AF_INET6
, prefixaddr
, &addr
) < 1) {
1174 interface_update_prefix(NULL
, NULL
, &ula_prefix
->node
);
1181 char *prefixlen
= strtok_r(NULL
, ",", &saveptr
);
1182 if (!prefixlen
|| (length
= atoi(prefixlen
)) < 1 || length
> 64)
1185 if (!ula_prefix
|| !IN6_ARE_ADDR_EQUAL(&addr
, &ula_prefix
->addr
) ||
1186 ula_prefix
->length
!= length
) {
1188 interface_update_prefix(NULL
, NULL
, &ula_prefix
->node
);
1190 ula_prefix
= interface_ip_add_device_prefix(NULL
, &addr
, length
,
1191 0, 0, NULL
, 0, NULL
);
1196 interface_add_dns_server(struct interface_ip_settings
*ip
, const char *str
)
1198 struct dns_server
*s
;
1200 s
= calloc(1, sizeof(*s
));
1205 if (inet_pton(s
->af
, str
, &s
->addr
.in
))
1209 if (inet_pton(s
->af
, str
, &s
->addr
.in
))
1216 D(INTERFACE
, "Add IPv%c DNS server: %s\n",
1217 s
->af
== AF_INET6
? '6' : '4', str
);
1218 vlist_simple_add(&ip
->dns_servers
, &s
->node
);
1222 interface_add_dns_server_list(struct interface_ip_settings
*ip
, struct blob_attr
*list
)
1224 struct blob_attr
*cur
;
1227 blobmsg_for_each_attr(cur
, list
, rem
) {
1228 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
1231 if (!blobmsg_check_attr(cur
, NULL
))
1234 interface_add_dns_server(ip
, blobmsg_data(cur
));
1239 interface_add_dns_search_domain(struct interface_ip_settings
*ip
, const char *str
)
1241 struct dns_search_domain
*s
;
1242 int len
= strlen(str
);
1244 s
= calloc(1, sizeof(*s
) + len
+ 1);
1248 D(INTERFACE
, "Add DNS search domain: %s\n", str
);
1249 memcpy(s
->name
, str
, len
);
1250 vlist_simple_add(&ip
->dns_search
, &s
->node
);
1254 interface_add_dns_search_list(struct interface_ip_settings
*ip
, struct blob_attr
*list
)
1256 struct blob_attr
*cur
;
1259 blobmsg_for_each_attr(cur
, list
, rem
) {
1260 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
1263 if (!blobmsg_check_attr(cur
, NULL
))
1266 interface_add_dns_search_domain(ip
, blobmsg_data(cur
));
1271 write_resolv_conf_entries(FILE *f
, struct interface_ip_settings
*ip
, const char *dev
)
1273 struct dns_server
*s
;
1274 struct dns_search_domain
*d
;
1276 char buf
[INET6_ADDRSTRLEN
];
1278 vlist_simple_for_each_element(&ip
->dns_servers
, s
, node
) {
1279 str
= inet_ntop(s
->af
, &s
->addr
, buf
, sizeof(buf
));
1283 if (s
->af
== AF_INET6
&& IN6_IS_ADDR_LINKLOCAL(&s
->addr
.in6
))
1284 fprintf(f
, "nameserver %s%%%s\n", str
, dev
);
1286 fprintf(f
, "nameserver %s\n", str
);
1289 vlist_simple_for_each_element(&ip
->dns_search
, d
, node
) {
1290 fprintf(f
, "search %s\n", d
->name
);
1294 /* Sorting of interface resolver entries : */
1295 /* Primary on interface dns_metric : lowest metric first */
1296 /* Secondary on interface metric : lowest metric first */
1297 /* Finally alphabetical order of interface names */
1298 static int resolv_conf_iface_cmp(const void *k1
, const void *k2
, void *ptr
)
1300 const struct interface
*iface1
= k1
, *iface2
= k2
;
1302 if (iface1
->dns_metric
!= iface2
->dns_metric
)
1303 return iface1
->dns_metric
- iface2
->dns_metric
;
1305 if (iface1
->metric
!= iface2
->metric
)
1306 return iface1
->metric
- iface2
->metric
;
1308 return strcmp(iface1
->name
, iface2
->name
);
1312 __interface_write_dns_entries(FILE *f
)
1314 struct interface
*iface
;
1316 struct avl_node node
;
1318 struct avl_tree resolv_conf_iface_entries
;
1320 avl_init(&resolv_conf_iface_entries
, resolv_conf_iface_cmp
, false, NULL
);
1322 vlist_for_each_element(&interfaces
, iface
, node
) {
1323 if (iface
->state
!= IFS_UP
)
1326 if (vlist_simple_empty(&iface
->proto_ip
.dns_search
) &&
1327 vlist_simple_empty(&iface
->proto_ip
.dns_servers
) &&
1328 vlist_simple_empty(&iface
->config_ip
.dns_search
) &&
1329 vlist_simple_empty(&iface
->config_ip
.dns_servers
))
1332 entry
= calloc(1, sizeof(*entry
));
1336 entry
->node
.key
= iface
;
1337 avl_insert(&resolv_conf_iface_entries
, &entry
->node
);
1340 avl_for_each_element(&resolv_conf_iface_entries
, entry
, node
) {
1341 iface
= (struct interface
*)entry
->node
.key
;
1342 struct device
*dev
= iface
->l3_dev
.dev
;
1344 fprintf(f
, "# Interface %s\n", iface
->name
);
1346 write_resolv_conf_entries(f
, &iface
->config_ip
, dev
->ifname
);
1348 if (!iface
->proto_ip
.no_dns
)
1349 write_resolv_conf_entries(f
, &iface
->proto_ip
, dev
->ifname
);
1352 avl_remove_all_elements(&resolv_conf_iface_entries
, entry
, node
, n_entry
)
1357 interface_write_resolv_conf(void)
1359 char *path
= alloca(strlen(resolv_conf
) + 5);
1361 uint32_t crcold
, crcnew
;
1363 sprintf(path
, "%s.tmp", resolv_conf
);
1365 f
= fopen(path
, "w+");
1367 D(INTERFACE
, "Failed to open %s for writing\n", path
);
1371 __interface_write_dns_entries(f
);
1375 crcnew
= crc32_file(f
);
1378 crcold
= crcnew
+ 1;
1379 f
= fopen(resolv_conf
, "r");
1381 crcold
= crc32_file(f
);
1385 if (crcold
== crcnew
) {
1387 } else if (rename(path
, resolv_conf
) < 0) {
1388 D(INTERFACE
, "Failed to replace %s\n", resolv_conf
);
1393 void interface_ip_set_enabled(struct interface_ip_settings
*ip
, bool enabled
)
1395 struct device_addr
*addr
;
1396 struct device_route
*route
;
1398 struct interface
*iface
;
1400 ip
->enabled
= enabled
;
1402 dev
= iface
->l3_dev
.dev
;
1406 vlist_for_each_element(&ip
->addr
, addr
, node
) {
1407 bool v6
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
) ? true : false;
1409 if (addr
->flags
& DEVADDR_EXTERNAL
)
1412 if (addr
->enabled
== enabled
)
1416 system_add_address(dev
, addr
);
1418 addr
->policy_table
= (v6
) ? iface
->ip6table
: iface
->ip4table
;
1419 if (iface
->metric
|| addr
->policy_table
)
1420 interface_handle_subnet_route(iface
, addr
, true);
1422 if (addr
->policy_table
)
1423 interface_add_addr_rules(addr
, true);
1425 interface_handle_subnet_route(iface
, addr
, false);
1426 system_del_address(dev
, addr
);
1428 if (addr
->policy_table
)
1429 interface_add_addr_rules(addr
, false);
1431 addr
->enabled
= enabled
;
1434 vlist_for_each_element(&ip
->route
, route
, node
) {
1435 bool _enabled
= enabled
;
1437 if (route
->flags
& DEVADDR_EXTERNAL
)
1440 if (!enable_route(ip
, route
))
1443 if (route
->enabled
== _enabled
)
1447 interface_set_route_info(ip
->iface
, route
);
1449 if (system_add_route(dev
, route
))
1450 route
->failed
= true;
1452 system_del_route(dev
, route
);
1453 route
->enabled
= _enabled
;
1456 struct device_prefix
*c
;
1457 struct device_prefix_assignment
*a
;
1458 list_for_each_entry(c
, &prefixes
, head
)
1459 list_for_each_entry(a
, &c
->assignments
, head
)
1460 if (!strcmp(a
->name
, ip
->iface
->name
))
1461 interface_set_prefix_address(a
, c
, ip
->iface
, enabled
);
1463 if (ip
->iface
->policy_rules_set
!= enabled
&&
1464 ip
->iface
->l3_dev
.dev
) {
1465 set_ip_lo_policy(enabled
, true, ip
->iface
);
1466 set_ip_lo_policy(enabled
, false, ip
->iface
);
1468 set_ip_source_policy(enabled
, true, IPRULE_PRIORITY_REJECT
+ ip
->iface
->l3_dev
.dev
->ifindex
,
1469 NULL
, 0, 0, ip
->iface
, "failed_policy", true);
1470 ip
->iface
->policy_rules_set
= enabled
;
1475 interface_ip_update_start(struct interface_ip_settings
*ip
)
1477 if (ip
!= &ip
->iface
->config_ip
) {
1478 vlist_simple_update(&ip
->dns_servers
);
1479 vlist_simple_update(&ip
->dns_search
);
1481 vlist_update(&ip
->route
);
1482 vlist_update(&ip
->addr
);
1483 vlist_update(&ip
->prefix
);
1487 interface_ip_update_complete(struct interface_ip_settings
*ip
)
1489 vlist_simple_flush(&ip
->dns_servers
);
1490 vlist_simple_flush(&ip
->dns_search
);
1491 vlist_flush(&ip
->route
);
1492 vlist_flush(&ip
->addr
);
1493 vlist_flush(&ip
->prefix
);
1494 interface_write_resolv_conf();
1498 interface_ip_flush(struct interface_ip_settings
*ip
)
1500 if (ip
== &ip
->iface
->proto_ip
)
1501 vlist_flush_all(&ip
->iface
->host_routes
);
1502 vlist_simple_flush_all(&ip
->dns_servers
);
1503 vlist_simple_flush_all(&ip
->dns_search
);
1504 vlist_flush_all(&ip
->route
);
1505 vlist_flush_all(&ip
->addr
);
1506 vlist_flush_all(&ip
->prefix
);
1510 __interface_ip_init(struct interface_ip_settings
*ip
, struct interface
*iface
)
1514 vlist_simple_init(&ip
->dns_search
, struct dns_search_domain
, node
);
1515 vlist_simple_init(&ip
->dns_servers
, struct dns_server
, node
);
1516 vlist_init(&ip
->route
, route_cmp
, interface_update_proto_route
);
1517 vlist_init(&ip
->addr
, addr_cmp
, interface_update_proto_addr
);
1518 vlist_init(&ip
->prefix
, prefix_cmp
, interface_update_prefix
);
1522 interface_ip_init(struct interface
*iface
)
1524 __interface_ip_init(&iface
->proto_ip
, iface
);
1525 __interface_ip_init(&iface
->config_ip
, iface
);
1526 vlist_init(&iface
->host_routes
, route_cmp
, interface_update_host_route
);
1530 interface_ip_valid_until_handler(struct uloop_timeout
*t
)
1532 time_t now
= system_get_rtime();
1533 struct interface
*iface
;
1534 vlist_for_each_element(&interfaces
, iface
, node
) {
1535 if (iface
->state
!= IFS_UP
)
1538 struct device_addr
*addr
, *addrp
;
1539 struct device_route
*route
, *routep
;
1540 struct device_prefix
*pref
, *prefp
;
1542 vlist_for_each_element_safe(&iface
->proto_ip
.addr
, addr
, node
, addrp
)
1543 if (addr
->valid_until
&& addr
->valid_until
< now
)
1544 vlist_delete(&iface
->proto_ip
.addr
, &addr
->node
);
1546 vlist_for_each_element_safe(&iface
->proto_ip
.route
, route
, node
, routep
)
1547 if (route
->valid_until
&& route
->valid_until
< now
)
1548 vlist_delete(&iface
->proto_ip
.route
, &route
->node
);
1550 vlist_for_each_element_safe(&iface
->proto_ip
.prefix
, pref
, node
, prefp
)
1551 if (pref
->valid_until
&& pref
->valid_until
< now
)
1552 vlist_delete(&iface
->proto_ip
.prefix
, &pref
->node
);
1556 uloop_timeout_set(t
, 1000);
1560 interface_ip_init_worker(void)
1562 valid_until_timeout
.cb
= interface_ip_valid_until_handler
;
1563 uloop_timeout_set(&valid_until_timeout
, 1000);