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>
24 #include <netinet/ether.h>
29 #include "interface.h"
30 #include "interface-ip.h"
51 static const struct blobmsg_policy route_attr
[__ROUTE_MAX
] = {
52 [ROUTE_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
53 [ROUTE_TARGET
] = { .name
= "target", .type
= BLOBMSG_TYPE_STRING
},
54 [ROUTE_MASK
] = { .name
= "netmask", .type
= BLOBMSG_TYPE_STRING
},
55 [ROUTE_GATEWAY
] = { .name
= "gateway", .type
= BLOBMSG_TYPE_STRING
},
56 [ROUTE_METRIC
] = { .name
= "metric", .type
= BLOBMSG_TYPE_INT32
},
57 [ROUTE_MTU
] = { .name
= "mtu", .type
= BLOBMSG_TYPE_INT32
},
58 [ROUTE_TABLE
] = { .name
= "table", .type
= BLOBMSG_TYPE_STRING
},
59 [ROUTE_VALID
] = { .name
= "valid", .type
= BLOBMSG_TYPE_INT32
},
60 [ROUTE_SOURCE
] = { .name
= "source", .type
= BLOBMSG_TYPE_STRING
},
61 [ROUTE_ONLINK
] = { .name
= "onlink", .type
= BLOBMSG_TYPE_BOOL
},
62 [ROUTE_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
63 [ROUTE_PROTO
] = { .name
= "proto", .type
= BLOBMSG_TYPE_STRING
},
66 const struct uci_blob_param_list route_attr_list
= {
67 .n_params
= __ROUTE_MAX
,
80 static const struct blobmsg_policy neighbor_attr
[__NEIGHBOR_MAX
]={
81 [NEIGHBOR_INTERFACE
]= { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
82 [NEIGHBOR_ADDRESS
]= { .name
= "ipaddr", .type
= BLOBMSG_TYPE_STRING
},
83 [NEIGHBOR_MAC
]= { .name
= "mac", .type
= BLOBMSG_TYPE_STRING
},
84 [NEIGHBOR_PROXY
]= { .name
= "proxy", .type
= BLOBMSG_TYPE_BOOL
},
85 [NEIGHBOR_ROUTER
]= {.name
= "router", .type
= BLOBMSG_TYPE_BOOL
},
88 const struct uci_blob_param_list neighbor_attr_list
= {
89 .n_params
= __NEIGHBOR_MAX
,
90 .params
= neighbor_attr
,
94 struct list_head prefixes
= LIST_HEAD_INIT(prefixes
);
95 static struct device_prefix
*ula_prefix
= NULL
;
96 static struct uloop_timeout valid_until_timeout
;
100 clear_if_addr(union if_addr
*a
, int mask
)
102 int m_bytes
= (mask
+ 7) / 8;
103 uint8_t m_clear
= (1 << (m_bytes
* 8 - mask
)) - 1;
104 uint8_t *p
= (uint8_t *) a
;
106 if (m_bytes
< sizeof(*a
))
107 memset(p
+ m_bytes
, 0, sizeof(*a
) - m_bytes
);
109 p
[m_bytes
- 1] &= ~m_clear
;
113 match_if_addr(union if_addr
*a1
, union if_addr
*a2
, int mask
)
115 union if_addr
*p1
, *p2
;
117 p1
= alloca(sizeof(*a1
));
118 p2
= alloca(sizeof(*a2
));
120 memcpy(p1
, a1
, sizeof(*a1
));
121 clear_if_addr(p1
, mask
);
122 memcpy(p2
, a2
, sizeof(*a2
));
123 clear_if_addr(p2
, mask
);
125 return !memcmp(p1
, p2
, sizeof(*p1
));
128 static int set_ip_source_policy(bool add
, bool v6
, unsigned int priority
,
129 const union if_addr
*addr
, uint8_t mask
, unsigned int table
,
130 struct interface
*in_iface
, const char *action
, bool src
)
132 struct iprule rule
= {
133 .flags
= IPRULE_PRIORITY
,
139 rule
.flags
|= IPRULE_SRC
;
140 rule
.src_addr
= *addr
;
141 rule
.src_mask
= mask
;
143 rule
.flags
|= IPRULE_DEST
;
144 rule
.dest_addr
= *addr
;
145 rule
.dest_mask
= mask
;
150 rule
.flags
|= IPRULE_LOOKUP
;
156 rule
.flags
|= IPRULE_ACTION
;
157 system_resolve_iprule_action(action
, &rule
.action
);
160 if (in_iface
&& in_iface
->l3_dev
.dev
) {
161 rule
.flags
|= IPRULE_IN
;
162 strcpy(rule
.in_dev
, in_iface
->l3_dev
.dev
->ifname
);
165 rule
.flags
|= (v6
) ? IPRULE_INET6
: IPRULE_INET4
;
167 return (add
) ? system_add_iprule(&rule
) : system_del_iprule(&rule
);
170 static int set_ip_lo_policy(bool add
, bool v6
, struct interface
*iface
)
172 struct iprule rule
= {
173 .flags
= IPRULE_IN
| IPRULE_LOOKUP
| IPRULE_PRIORITY
,
174 .priority
= IPRULE_PRIORITY_NW
+ iface
->l3_dev
.dev
->ifindex
,
175 .lookup
= (v6
) ? iface
->ip6table
: iface
->ip4table
,
182 rule
.flags
|= (v6
) ? IPRULE_INET6
: IPRULE_INET4
;
184 return (add
) ? system_add_iprule(&rule
) : system_del_iprule(&rule
);
188 __find_ip_addr_target(struct interface_ip_settings
*ip
, union if_addr
*a
, bool v6
)
190 struct device_addr
*addr
;
192 vlist_for_each_element(&ip
->addr
, addr
, node
) {
196 if (v6
!= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
))
199 /* Handle offlink addresses correctly */
200 unsigned int mask
= addr
->mask
;
201 if ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
&&
202 (addr
->flags
& DEVADDR_OFFLINK
))
205 if (!match_if_addr(&addr
->addr
, a
, mask
))
215 __find_ip_route_target(struct interface_ip_settings
*ip
, union if_addr
*a
,
216 bool v6
, struct device_route
**res
)
218 struct device_route
*route
;
220 vlist_for_each_element(&ip
->route
, route
, node
) {
224 if (v6
!= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
))
227 if (!match_if_addr(&route
->addr
, a
, route
->mask
))
230 if (route
->flags
& DEVROUTE_TABLE
)
233 if (!*res
|| route
->mask
> (*res
)->mask
)
239 interface_ip_find_addr_target(struct interface
*iface
, union if_addr
*a
, bool v6
)
241 return __find_ip_addr_target(&iface
->proto_ip
, a
, v6
) ||
242 __find_ip_addr_target(&iface
->config_ip
, a
, v6
);
246 interface_ip_find_route_target(struct interface
*iface
, union if_addr
*a
,
247 bool v6
, struct device_route
**route
)
249 __find_ip_route_target(&iface
->proto_ip
, a
, v6
, route
);
250 __find_ip_route_target(&iface
->config_ip
, a
, v6
, route
);
254 interface_ip_add_target_route(union if_addr
*addr
, bool v6
, struct interface
*iface
)
256 struct device_route
*route
, *r_next
= NULL
;
257 bool defaultroute_target
= false;
258 union if_addr addr_zero
;
259 int addrsize
= v6
? sizeof(addr
->in6
) : sizeof(addr
->in
);
261 memset(&addr_zero
, 0, sizeof(addr_zero
));
262 if (memcmp(&addr_zero
, addr
, addrsize
) == 0)
263 defaultroute_target
= true;
266 /* look for locally addressable target first */
267 if (interface_ip_find_addr_target(iface
, addr
, v6
))
270 /* do not stop at the first route, let the lookup compare
271 * masks to find the best match */
272 interface_ip_find_route_target(iface
, addr
, v6
, &r_next
);
274 vlist_for_each_element(&interfaces
, iface
, node
) {
275 /* look for locally addressable target first */
276 if (interface_ip_find_addr_target(iface
, addr
, v6
))
279 /* do not stop at the first route, let the lookup compare
280 * masks to find the best match */
281 interface_ip_find_route_target(iface
, addr
, v6
, &r_next
);
288 iface
= r_next
->iface
;
289 if (defaultroute_target
)
292 route
= calloc(1, sizeof(*route
));
296 route
->flags
= v6
? DEVADDR_INET6
: DEVADDR_INET4
;
297 route
->mask
= v6
? 128 : 32;
298 memcpy(&route
->addr
, addr
, addrsize
);
299 memcpy(&route
->nexthop
, &r_next
->nexthop
, sizeof(route
->nexthop
));
300 route
->mtu
= r_next
->mtu
;
301 route
->metric
= r_next
->metric
;
302 route
->table
= r_next
->table
;
303 route
->iface
= iface
;
304 vlist_add(&iface
->host_routes
, &route
->node
, route
);
310 interface_set_route_info(struct interface
*iface
, struct device_route
*route
)
312 bool v6
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
);
317 if (!(route
->flags
& DEVROUTE_METRIC
))
318 route
->metric
= iface
->metric
;
320 if (!(route
->flags
& DEVROUTE_TABLE
)) {
321 route
->table
= (v6
) ? iface
->ip6table
: iface
->ip4table
;
323 route
->flags
|= DEVROUTE_SRCTABLE
;
328 interface_ip_add_neighbor(struct interface
*iface
, struct blob_attr
*attr
, bool v6
)
330 struct interface_ip_settings
*ip
;
331 struct blob_attr
*tb
[__NEIGHBOR_MAX
], *cur
;
332 struct device_neighbor
*neighbor
;
333 int af
= v6
? AF_INET6
: AF_INET
;
334 struct ether_addr
*ea
;
336 blobmsg_parse(neighbor_attr
, __NEIGHBOR_MAX
, tb
, blobmsg_data(attr
), blobmsg_data_len(attr
));
339 if ((cur
= tb
[NEIGHBOR_INTERFACE
]) == NULL
)
342 iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
347 ip
= &iface
->config_ip
;
349 ip
= &iface
->proto_ip
;
351 neighbor
= calloc(1,sizeof(*neighbor
));
352 neighbor
->flags
= v6
? DEVADDR_INET6
: DEVADDR_INET4
;
357 if ((cur
= tb
[NEIGHBOR_ADDRESS
]) != NULL
){
358 if (!inet_pton(af
, blobmsg_data(cur
), &neighbor
->addr
))
363 if ((cur
= tb
[NEIGHBOR_MAC
]) != NULL
) {
364 neighbor
->flags
|= DEVNEIGH_MAC
;
365 ea
= ether_aton(blobmsg_data(cur
));
369 memcpy(neighbor
->macaddr
, ea
, 6);
372 if ((cur
= tb
[NEIGHBOR_PROXY
]) != NULL
)
373 neighbor
->proxy
= blobmsg_get_bool(cur
);
375 if ((cur
= tb
[NEIGHBOR_ROUTER
]) != NULL
)
376 neighbor
->router
= blobmsg_get_bool(cur
);
378 vlist_add(&ip
->neighbor
, &neighbor
->node
, neighbor
);
386 interface_ip_add_route(struct interface
*iface
, struct blob_attr
*attr
, bool v6
)
388 struct interface_ip_settings
*ip
;
389 struct blob_attr
*tb
[__ROUTE_MAX
], *cur
;
390 struct device_route
*route
;
391 int af
= v6
? AF_INET6
: AF_INET
;
393 blobmsg_parse(route_attr
, __ROUTE_MAX
, tb
, blobmsg_data(attr
), blobmsg_data_len(attr
));
396 if ((cur
= tb
[ROUTE_INTERFACE
]) == NULL
)
399 iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
403 ip
= &iface
->config_ip
;
405 ip
= &iface
->proto_ip
;
408 route
= calloc(1, sizeof(*route
));
412 route
->flags
= v6
? DEVADDR_INET6
: DEVADDR_INET4
;
413 route
->mask
= v6
? 128 : 32;
414 if ((cur
= tb
[ROUTE_MASK
]) != NULL
) {
415 route
->mask
= parse_netmask_string(blobmsg_data(cur
), v6
);
416 if (route
->mask
> (v6
? 128 : 32))
420 if ((cur
= tb
[ROUTE_TARGET
]) != NULL
) {
421 if (!parse_ip_and_netmask(af
, blobmsg_data(cur
), &route
->addr
, &route
->mask
)) {
422 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur
));
427 if ((cur
= tb
[ROUTE_GATEWAY
]) != NULL
) {
428 if (!inet_pton(af
, blobmsg_data(cur
), &route
->nexthop
)) {
429 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur
));
434 if ((cur
= tb
[ROUTE_METRIC
]) != NULL
) {
435 route
->metric
= blobmsg_get_u32(cur
);
436 route
->flags
|= DEVROUTE_METRIC
;
439 if ((cur
= tb
[ROUTE_MTU
]) != NULL
) {
440 route
->mtu
= blobmsg_get_u32(cur
);
441 route
->flags
|= DEVROUTE_MTU
;
444 /* Use source-based routing */
445 if ((cur
= tb
[ROUTE_SOURCE
]) != NULL
) {
446 char *saveptr
, *source
= alloca(blobmsg_data_len(cur
));
447 memcpy(source
, blobmsg_data(cur
), blobmsg_data_len(cur
));
449 const char *addr
= strtok_r(source
, "/", &saveptr
);
450 const char *mask
= strtok_r(NULL
, "/", &saveptr
);
452 if (!addr
|| inet_pton(af
, addr
, &route
->source
) < 1) {
453 DPRINTF("Failed to parse route source: %s\n", addr
? addr
: "NULL");
457 route
->sourcemask
= (mask
) ? atoi(mask
) : ((af
== AF_INET6
) ? 128 : 32);
460 if ((cur
= tb
[ROUTE_ONLINK
]) != NULL
&& blobmsg_get_bool(cur
))
461 route
->flags
|= DEVROUTE_ONLINK
;
463 if ((cur
= tb
[ROUTE_TABLE
]) != NULL
) {
464 if (!system_resolve_rt_table(blobmsg_data(cur
), &route
->table
)) {
465 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur
));
469 /* only set the table flag if not using the main (default) table */
470 if (system_is_default_rt_table(route
->table
))
474 route
->flags
|= DEVROUTE_TABLE
;
477 if ((cur
= tb
[ROUTE_VALID
]) != NULL
) {
478 int64_t valid
= blobmsg_get_u32(cur
);
479 int64_t valid_until
= valid
+ (int64_t)system_get_rtime();
480 if (valid_until
<= LONG_MAX
&& valid
!= 0xffffffffLL
) /* Catch overflow */
481 route
->valid_until
= valid_until
;
484 if ((cur
= tb
[ROUTE_TYPE
]) != NULL
) {
485 if (!system_resolve_rt_type(blobmsg_data(cur
), &route
->type
)) {
486 DPRINTF("Failed to resolve routing type: %s\n", (char *) blobmsg_data(cur
));
489 route
->flags
|= DEVROUTE_TYPE
;
492 if ((cur
= tb
[ROUTE_PROTO
]) != NULL
) {
493 if (!system_resolve_rt_proto(blobmsg_data(cur
), &route
->proto
)) {
494 DPRINTF("Failed to resolve proto type: %s\n", (char *) blobmsg_data(cur
));
497 route
->flags
|= DEVROUTE_PROTO
;
500 interface_set_route_info(iface
, route
);
501 vlist_add(&ip
->route
, &route
->node
, route
);
509 addr_cmp(const void *k1
, const void *k2
, void *ptr
)
511 return memcmp(k1
, k2
, sizeof(struct device_addr
) -
512 offsetof(struct device_addr
, flags
));
516 neighbor_cmp(const void *k1
, const void *k2
, void *ptr
)
518 const struct device_neighbor
*n1
= k1
, *n2
= k2
;
520 return memcmp(&n1
->addr
, &n2
->addr
, sizeof(n2
->addr
));
524 route_cmp(const void *k1
, const void *k2
, void *ptr
)
526 const struct device_route
*r1
= k1
, *r2
= k2
;
528 if (r1
->mask
!= r2
->mask
)
529 return r2
->mask
- r1
->mask
;
531 if (r1
->metric
!= r2
->metric
)
532 return r1
->metric
- r2
->metric
;
534 if (r1
->flags
!= r2
->flags
)
535 return r2
->flags
- r1
->flags
;
537 if (r1
->sourcemask
!= r2
->sourcemask
)
538 return r1
->sourcemask
- r2
->sourcemask
;
540 if (r1
->table
!= r2
->table
)
541 return r1
->table
- r2
->table
;
543 int maskcmp
= memcmp(&r1
->source
, &r2
->source
, sizeof(r1
->source
));
547 return memcmp(&r1
->addr
, &r2
->addr
, sizeof(r1
->addr
));
551 prefix_cmp(const void *k1
, const void *k2
, void *ptr
)
553 return memcmp(k1
, k2
, offsetof(struct device_prefix
, pclass
) -
554 offsetof(struct device_prefix
, addr
));
558 interface_handle_subnet_route(struct interface
*iface
, struct device_addr
*addr
, bool add
)
560 struct device
*dev
= iface
->l3_dev
.dev
;
561 struct device_route
*r
= &addr
->subnet
;
563 if (addr
->flags
& DEVADDR_OFFLINK
)
567 if (!addr
->subnet
.iface
)
570 system_del_route(dev
, r
);
571 memset(r
, 0, sizeof(*r
));
576 r
->flags
= addr
->flags
;
577 r
->mask
= addr
->mask
;
578 memcpy(&r
->addr
, &addr
->addr
, sizeof(r
->addr
));
579 clear_if_addr(&r
->addr
, r
->mask
);
581 if (!system_resolve_rt_proto("kernel", &r
->proto
))
584 r
->flags
|= DEVROUTE_PROTO
;
585 system_del_route(dev
, r
);
587 r
->flags
&= ~DEVROUTE_PROTO
;
588 interface_set_route_info(iface
, r
);
590 system_add_route(dev
, r
);
594 interface_add_addr_rules(struct device_addr
*addr
, bool enabled
)
596 bool v6
= (addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
;
598 set_ip_source_policy(enabled
, v6
, IPRULE_PRIORITY_ADDR
, &addr
->addr
,
599 (v6
) ? 128 : 32, addr
->policy_table
, NULL
, NULL
,
601 set_ip_source_policy(enabled
, v6
, IPRULE_PRIORITY_ADDR_MASK
,
602 &addr
->addr
, addr
->mask
, addr
->policy_table
, NULL
,
607 interface_update_proto_addr(struct vlist_tree
*tree
,
608 struct vlist_node
*node_new
,
609 struct vlist_node
*node_old
)
611 struct interface_ip_settings
*ip
;
612 struct interface
*iface
;
614 struct device_addr
*a_new
= NULL
, *a_old
= NULL
;
615 bool replace
= false;
619 ip
= container_of(tree
, struct interface_ip_settings
, addr
);
621 dev
= iface
->l3_dev
.dev
;
623 if (!node_new
|| !node_old
)
624 iface
->updated
|= IUF_ADDRESS
;
627 a_new
= container_of(node_new
, struct device_addr
, node
);
629 if ((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
&&
632 /* /31 and /32 addressing need 255.255.255.255
633 * as broadcast address. */
634 if (a_new
->mask
>= 31) {
635 a_new
->broadcast
= (uint32_t) ~0;
638 uint32_t *a
= (uint32_t *) &a_new
->addr
;
640 mask
>>= a_new
->mask
;
641 a_new
->broadcast
= *a
| htonl(mask
);
647 a_old
= container_of(node_old
, struct device_addr
, node
);
649 if (a_new
&& a_old
) {
652 if (a_old
->flags
!= a_new
->flags
|| a_old
->failed
)
655 if (a_old
->valid_until
!= a_new
->valid_until
||
656 a_old
->preferred_until
!= a_new
->preferred_until
)
659 if (((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) &&
660 (a_new
->broadcast
!= a_old
->broadcast
||
661 a_new
->point_to_point
!= a_old
->point_to_point
))
666 if (a_old
->enabled
&& !keep
) {
668 * This is needed for source routing to work correctly. If a device
669 * has two connections to a network using the same subnet, adding
670 * only the network-rule will cause packets to be routed through the
671 * first matching network (source IP matches both masks)
673 if (a_old
->policy_table
)
674 interface_add_addr_rules(a_old
, false);
676 if (!(a_old
->flags
& DEVADDR_EXTERNAL
)) {
677 interface_handle_subnet_route(iface
, a_old
, false);
678 system_del_address(dev
, a_old
);
686 a_new
->enabled
= true;
688 if ((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
)
691 a_new
->policy_table
= (v6
) ? iface
->ip6table
: iface
->ip4table
;
693 if (!keep
|| replace
) {
694 if (!(a_new
->flags
& DEVADDR_EXTERNAL
)) {
695 if (system_add_address(dev
, a_new
))
696 a_new
->failed
= true;
698 if (iface
->metric
|| a_new
->policy_table
)
699 interface_handle_subnet_route(iface
, a_new
, true);
703 if (a_new
->policy_table
)
704 interface_add_addr_rules(a_new
, true);
711 enable_route(struct interface_ip_settings
*ip
, struct device_route
*route
)
713 if (ip
->no_defaultroute
&& !route
->mask
)
720 interface_update_proto_neighbor(struct vlist_tree
*tree
,
721 struct vlist_node
* node_new
,
722 struct vlist_node
*node_old
)
725 struct device_neighbor
*neighbor_old
, *neighbor_new
;
726 struct interface_ip_settings
*ip
;
729 ip
= container_of(tree
, struct interface_ip_settings
, neighbor
);
730 dev
= ip
->iface
->l3_dev
.dev
;
732 neighbor_old
= container_of(node_old
, struct device_neighbor
, node
);
733 neighbor_new
= container_of(node_new
, struct device_neighbor
, node
);
735 if (node_old
&& node_new
) {
736 keep
= (!memcmp(neighbor_old
->macaddr
, neighbor_new
->macaddr
, sizeof(neighbor_old
->macaddr
)) &&
737 (neighbor_old
->proxy
== neighbor_new
->proxy
) &&
738 (neighbor_old
->router
== neighbor_new
->router
));
742 if (!keep
&& neighbor_old
->enabled
)
743 system_del_neighbor(dev
, neighbor_old
);
749 if (!keep
&& ip
->enabled
)
750 if (system_add_neighbor(dev
, neighbor_new
))
751 neighbor_new
->failed
= true;
753 neighbor_new
->enabled
= ip
->enabled
;
758 interface_update_proto_route(struct vlist_tree
*tree
,
759 struct vlist_node
*node_new
,
760 struct vlist_node
*node_old
)
762 struct interface_ip_settings
*ip
;
763 struct interface
*iface
;
765 struct device_route
*route_old
, *route_new
;
768 ip
= container_of(tree
, struct interface_ip_settings
, route
);
770 dev
= iface
->l3_dev
.dev
;
772 if (!node_new
|| !node_old
)
773 iface
->updated
|= IUF_ROUTE
;
775 route_old
= container_of(node_old
, struct device_route
, node
);
776 route_new
= container_of(node_new
, struct device_route
, node
);
778 if (node_old
&& node_new
)
779 keep
= !memcmp(&route_old
->nexthop
, &route_new
->nexthop
, sizeof(route_old
->nexthop
)) &&
780 (route_old
->mtu
== route_new
->mtu
) && (route_old
->type
== route_new
->type
) &&
781 (route_old
->proto
== route_new
->proto
) && !route_old
->failed
;
784 if (!(route_old
->flags
& DEVADDR_EXTERNAL
) && route_old
->enabled
&& !keep
)
785 system_del_route(dev
, route_old
);
791 bool _enabled
= enable_route(ip
, route_new
);
793 if (!(route_new
->flags
& DEVADDR_EXTERNAL
) && !keep
&& _enabled
)
794 if (system_add_route(dev
, route_new
))
795 route_new
->failed
= true;
797 route_new
->iface
= iface
;
798 route_new
->enabled
= _enabled
;
803 interface_update_host_route(struct vlist_tree
*tree
,
804 struct vlist_node
*node_new
,
805 struct vlist_node
*node_old
)
807 struct interface
*iface
;
809 struct device_route
*route_old
, *route_new
;
811 iface
= container_of(tree
, struct interface
, host_routes
);
812 dev
= iface
->l3_dev
.dev
;
814 route_old
= container_of(node_old
, struct device_route
, node
);
815 route_new
= container_of(node_new
, struct device_route
, node
);
818 system_del_route(dev
, route_old
);
823 if (system_add_route(dev
, route_new
))
824 route_new
->failed
= true;
829 random_ifaceid(struct in6_addr
*addr
)
831 static bool initialized
= false;
836 gettimeofday(&t
, NULL
);
837 seed
= t
.tv_sec
^ t
.tv_usec
^ getpid();
841 addr
->s6_addr32
[2] = (uint32_t)mrand48();
842 addr
->s6_addr32
[3] = (uint32_t)mrand48();
846 eui64_ifaceid(struct interface
*iface
, struct in6_addr
*addr
)
848 struct device_settings st
;
850 device_merge_settings(iface
->l3_dev
.dev
, &st
);
852 if (!(st
.flags
& DEV_OPT_MACADDR
))
855 /* get mac address */
856 uint8_t *ifaceid
= addr
->s6_addr
+ 8;
857 memcpy(ifaceid
, st
.macaddr
, 3);
858 memcpy(ifaceid
+ 5, st
.macaddr
+ 3, 3);
867 generate_ifaceid(struct interface
*iface
, struct in6_addr
*addr
)
871 /* generate new iface id */
872 switch (iface
->assignment_iface_id_selection
) {
875 /* copy host part from assignment_fixed_iface_id */
876 memcpy(addr
->s6_addr
+ 8, iface
->assignment_fixed_iface_id
.s6_addr
+ 8, 8);
879 /* randomize last 64 bits */
880 random_ifaceid(addr
);
884 ret
= eui64_ifaceid(iface
, addr
);
894 interface_set_prefix_address(struct device_prefix_assignment
*assignment
,
895 const struct device_prefix
*prefix
, struct interface
*iface
, bool add
)
897 const struct interface
*uplink
= prefix
->iface
;
898 if (!iface
->l3_dev
.dev
)
901 struct device
*l3_downlink
= iface
->l3_dev
.dev
;
903 struct device_addr addr
;
904 struct device_route route
;
905 memset(&addr
, 0, sizeof(addr
));
906 memset(&route
, 0, sizeof(route
));
908 addr
.addr
.in6
= assignment
->addr
;
909 addr
.mask
= assignment
->length
;
910 addr
.flags
= DEVADDR_INET6
| DEVADDR_OFFLINK
;
911 addr
.preferred_until
= prefix
->preferred_until
;
912 addr
.valid_until
= prefix
->valid_until
;
914 route
.flags
= DEVADDR_INET6
;
915 route
.mask
= addr
.mask
< 64 ? 64 : addr
.mask
;
916 route
.addr
= addr
.addr
;
918 if (!add
&& assignment
->enabled
) {
919 time_t now
= system_get_rtime();
921 addr
.preferred_until
= now
;
922 if (!addr
.valid_until
|| addr
.valid_until
- now
> 7200)
923 addr
.valid_until
= now
+ 7200;
926 set_ip_source_policy(false, true, IPRULE_PRIORITY_ADDR_MASK
, &addr
.addr
,
927 addr
.mask
< 64 ? 64 : addr
.mask
, iface
->ip6table
, NULL
, NULL
, false);
930 if (prefix
->iface
->ip6table
)
931 set_ip_source_policy(false, true, IPRULE_PRIORITY_NW
, &addr
.addr
,
932 addr
.mask
, prefix
->iface
->ip6table
, iface
, NULL
, true);
934 set_ip_source_policy(false, true, IPRULE_PRIORITY_REJECT
, &addr
.addr
,
935 addr
.mask
, 0, iface
, "unreachable", true);
938 clear_if_addr(&route
.addr
, route
.mask
);
939 interface_set_route_info(iface
, &route
);
941 system_del_route(l3_downlink
, &route
);
942 system_add_address(l3_downlink
, &addr
);
944 assignment
->addr
= in6addr_any
;
945 assignment
->enabled
= false;
946 } else if (add
&& (iface
->state
== IFS_UP
|| iface
->state
== IFS_SETUP
)) {
947 if (IN6_IS_ADDR_UNSPECIFIED(&addr
.addr
.in6
)) {
948 addr
.addr
.in6
= prefix
->addr
;
949 addr
.addr
.in6
.s6_addr32
[1] |= htonl(assignment
->assigned
);
950 if (!generate_ifaceid(iface
, &addr
.addr
.in6
))
953 assignment
->addr
= addr
.addr
.in6
;
954 route
.addr
= addr
.addr
;
957 if (system_add_address(l3_downlink
, &addr
))
960 if (!assignment
->enabled
) {
962 set_ip_source_policy(true, true, IPRULE_PRIORITY_ADDR_MASK
, &addr
.addr
,
963 addr
.mask
< 64 ? 64 : addr
.mask
, iface
->ip6table
, NULL
, NULL
, false);
966 set_ip_source_policy(true, true, IPRULE_PRIORITY_REJECT
, &addr
.addr
,
967 addr
.mask
, 0, iface
, "unreachable", true);
969 if (prefix
->iface
->ip6table
)
970 set_ip_source_policy(true, true, IPRULE_PRIORITY_NW
, &addr
.addr
,
971 addr
.mask
, prefix
->iface
->ip6table
, iface
, NULL
, true);
975 clear_if_addr(&route
.addr
, route
.mask
);
976 interface_set_route_info(iface
, &route
);
978 system_add_route(l3_downlink
, &route
);
980 if (uplink
&& uplink
->l3_dev
.dev
&& !(l3_downlink
->settings
.flags
& DEV_OPT_MTU6
)) {
981 int mtu
= system_update_ipv6_mtu(uplink
->l3_dev
.dev
, 0);
982 int mtu_old
= system_update_ipv6_mtu(l3_downlink
, 0);
984 if (mtu
> 0 && mtu_old
!= mtu
) {
985 if (system_update_ipv6_mtu(l3_downlink
, mtu
) < 0)
986 netifd_log_message(L_WARNING
, "Failed to set IPv6 mtu to %d"
987 "on interface '%s'\n", mtu
, iface
->name
);
991 assignment
->enabled
= true;
995 static bool interface_prefix_assign(struct list_head
*list
,
996 struct device_prefix_assignment
*assign
)
998 int32_t current
= 0, asize
= (1 << (64 - assign
->length
)) - 1;
999 struct device_prefix_assignment
*c
;
1000 list_for_each_entry(c
, list
, head
) {
1001 if (assign
->assigned
!= -1) {
1002 if (assign
->assigned
>= current
&& assign
->assigned
+ asize
< c
->assigned
) {
1003 list_add_tail(&assign
->head
, &c
->head
);
1006 } else if (assign
->assigned
== -1) {
1007 current
= (current
+ asize
) & (~asize
);
1008 if (current
+ asize
< c
->assigned
) {
1009 assign
->assigned
= current
;
1010 list_add_tail(&assign
->head
, &c
->head
);
1014 current
= (c
->assigned
+ (1 << (64 - c
->length
)));
1020 * Sorting of assignment entries:
1021 * Primary on assignment length: smallest assignment first
1022 * Secondary on assignment weight: highest weight first
1023 * Finally alphabetical order of interface names
1025 static int prefix_assignment_cmp(const void *k1
, const void *k2
, void *ptr
)
1027 const struct device_prefix_assignment
*a1
= k1
, *a2
= k2
;
1029 if (a1
->length
!= a2
->length
)
1030 return a1
->length
- a2
->length
;
1032 if (a1
->weight
!= a2
->weight
)
1033 return a2
->weight
- a1
->weight
;
1035 return strcmp(a1
->name
, a2
->name
);
1038 static void interface_update_prefix_assignments(struct device_prefix
*prefix
, bool setup
)
1040 struct device_prefix_assignment
*c
;
1041 struct interface
*iface
;
1043 /* Delete all assignments */
1044 while (!list_empty(&prefix
->assignments
)) {
1045 c
= list_first_entry(&prefix
->assignments
,
1046 struct device_prefix_assignment
, head
);
1047 if ((iface
= vlist_find(&interfaces
, c
->name
, iface
, node
)))
1048 interface_set_prefix_address(c
, prefix
, iface
, false);
1056 /* End-of-assignment sentinel */
1057 c
= malloc(sizeof(*c
) + 1);
1061 c
->assigned
= 1 << (64 - prefix
->length
);
1064 c
->addr
= in6addr_any
;
1065 list_add(&c
->head
, &prefix
->assignments
);
1067 /* Excluded prefix */
1068 if (prefix
->excl_length
> 0) {
1069 const char name
[] = "!excluded";
1070 c
= malloc(sizeof(*c
) + sizeof(name
));
1072 c
->assigned
= ntohl(prefix
->excl_addr
.s6_addr32
[1]) &
1073 ((1 << (64 - prefix
->length
)) - 1);
1074 c
->length
= prefix
->excl_length
;
1075 c
->addr
= in6addr_any
;
1076 memcpy(c
->name
, name
, sizeof(name
));
1077 list_add(&c
->head
, &prefix
->assignments
);
1081 bool assigned_any
= false;
1083 struct avl_node node
;
1085 struct avl_tree assign_later
;
1087 avl_init(&assign_later
, prefix_assignment_cmp
, false, NULL
);
1089 vlist_for_each_element(&interfaces
, iface
, node
) {
1090 if (iface
->assignment_length
< 48 ||
1091 iface
->assignment_length
> 64)
1094 /* Test whether there is a matching class */
1095 if (!list_empty(&iface
->assignment_classes
)) {
1098 struct interface_assignment_class
*c
;
1099 list_for_each_entry(c
, &iface
->assignment_classes
, head
) {
1100 if (!strcmp(c
->name
, prefix
->pclass
)) {
1110 size_t namelen
= strlen(iface
->name
) + 1;
1111 c
= malloc(sizeof(*c
) + namelen
);
1115 c
->length
= iface
->assignment_length
;
1116 c
->assigned
= iface
->assignment_hint
;
1117 c
->weight
= iface
->assignment_weight
;
1118 c
->addr
= in6addr_any
;
1120 memcpy(c
->name
, iface
->name
, namelen
);
1122 /* First process all custom assignments, put all others in later-list */
1123 if (c
->assigned
== -1 || !interface_prefix_assign(&prefix
->assignments
, c
)) {
1124 if (c
->assigned
!= -1) {
1126 netifd_log_message(L_WARNING
, "Failed to assign requested subprefix "
1127 "of size %hhu for %s, trying other\n", c
->length
, c
->name
);
1130 entry
= calloc(1, sizeof(*entry
));
1136 entry
->node
.key
= c
;
1137 avl_insert(&assign_later
, &entry
->node
);
1140 if (c
->assigned
!= -1)
1141 assigned_any
= true;
1144 /* Then try to assign all other + failed custom assignments */
1145 avl_for_each_element_safe(&assign_later
, entry
, node
, n_entry
) {
1146 bool assigned
= false;
1148 c
= (struct device_prefix_assignment
*)entry
->node
.key
;
1149 avl_delete(&assign_later
, &entry
->node
);
1152 assigned
= interface_prefix_assign(&prefix
->assignments
, c
);
1153 } while (!assigned
&& ++c
->length
<= 64);
1156 netifd_log_message(L_WARNING
, "Failed to assign subprefix "
1157 "of size %hhu for %s\n", c
->length
, c
->name
);
1160 assigned_any
= true;
1165 list_for_each_entry(c
, &prefix
->assignments
, head
)
1166 if ((iface
= vlist_find(&interfaces
, c
->name
, iface
, node
)))
1167 interface_set_prefix_address(c
, prefix
, iface
, true);
1170 netifd_log_message(L_WARNING
, "You have delegated IPv6-prefixes but haven't assigned them "
1171 "to any interface. Did you forget to set option ip6assign on your lan-interfaces?");
1175 void interface_refresh_assignments(bool hint
)
1177 static bool refresh
= false;
1178 if (!hint
&& refresh
) {
1179 struct device_prefix
*p
;
1180 list_for_each_entry(p
, &prefixes
, head
)
1181 interface_update_prefix_assignments(p
, true);
1186 void interface_update_prefix_delegation(struct interface_ip_settings
*ip
)
1188 struct device_prefix
*prefix
;
1190 vlist_for_each_element(&ip
->prefix
, prefix
, node
) {
1191 interface_update_prefix_assignments(prefix
, !ip
->no_delegation
);
1193 if (ip
->no_delegation
) {
1194 if (prefix
->head
.next
)
1195 list_del(&prefix
->head
);
1197 list_add(&prefix
->head
, &prefixes
);
1202 interface_update_prefix(struct vlist_tree
*tree
,
1203 struct vlist_node
*node_new
,
1204 struct vlist_node
*node_old
)
1206 struct device_prefix
*prefix_old
, *prefix_new
;
1207 prefix_old
= container_of(node_old
, struct device_prefix
, node
);
1208 prefix_new
= container_of(node_new
, struct device_prefix
, node
);
1210 struct interface_ip_settings
*ip
= container_of(tree
, struct interface_ip_settings
, prefix
);
1211 if (tree
&& (!node_new
|| !node_old
))
1212 ip
->iface
->updated
|= IUF_PREFIX
;
1214 struct device_route route
;
1215 memset(&route
, 0, sizeof(route
));
1216 route
.flags
= DEVADDR_INET6
;
1217 route
.metric
= INT32_MAX
;
1218 route
.mask
= (node_new
) ? prefix_new
->length
: prefix_old
->length
;
1219 route
.addr
.in6
= (node_new
) ? prefix_new
->addr
: prefix_old
->addr
;
1222 struct device_prefix_assignment
*c
;
1223 struct interface
*iface
;
1225 if (node_old
&& node_new
) {
1226 /* Move assignments and refresh addresses to update valid times */
1227 list_splice(&prefix_old
->assignments
, &prefix_new
->assignments
);
1229 list_for_each_entry(c
, &prefix_new
->assignments
, head
)
1230 if ((iface
= vlist_find(&interfaces
, c
->name
, iface
, node
)))
1231 interface_set_prefix_address(c
, prefix_new
, iface
, true);
1233 if (prefix_new
->preferred_until
!= prefix_old
->preferred_until
||
1234 prefix_new
->valid_until
!= prefix_old
->valid_until
)
1235 ip
->iface
->updated
|= IUF_PREFIX
;
1236 } else if (node_new
) {
1237 /* Set null-route to avoid routing loops */
1238 system_add_route(NULL
, &route
);
1240 if (!prefix_new
->iface
|| !prefix_new
->iface
->proto_ip
.no_delegation
)
1241 interface_update_prefix_assignments(prefix_new
, true);
1242 } else if (node_old
) {
1243 /* Remove null-route */
1244 interface_update_prefix_assignments(prefix_old
, false);
1245 system_del_route(NULL
, &route
);
1249 if (prefix_old
->head
.next
)
1250 list_del(&prefix_old
->head
);
1254 if (node_new
&& (!prefix_new
->iface
|| !prefix_new
->iface
->proto_ip
.no_delegation
))
1255 list_add(&prefix_new
->head
, &prefixes
);
1259 struct device_prefix
*
1260 interface_ip_add_device_prefix(struct interface
*iface
, struct in6_addr
*addr
,
1261 uint8_t length
, time_t valid_until
, time_t preferred_until
,
1262 struct in6_addr
*excl_addr
, uint8_t excl_length
, const char *pclass
)
1265 pclass
= (iface
) ? iface
->name
: "local";
1267 struct device_prefix
*prefix
= calloc(1, sizeof(*prefix
) + strlen(pclass
) + 1);
1271 prefix
->length
= length
;
1272 prefix
->addr
= *addr
;
1273 prefix
->preferred_until
= preferred_until
;
1274 prefix
->valid_until
= valid_until
;
1275 prefix
->iface
= iface
;
1276 INIT_LIST_HEAD(&prefix
->assignments
);
1279 prefix
->excl_addr
= *excl_addr
;
1280 prefix
->excl_length
= excl_length
;
1283 strcpy(prefix
->pclass
, pclass
);
1286 vlist_add(&iface
->proto_ip
.prefix
, &prefix
->node
, &prefix
->addr
);
1288 interface_update_prefix(NULL
, &prefix
->node
, NULL
);
1294 interface_ip_set_ula_prefix(const char *prefix
)
1296 char buf
[INET6_ADDRSTRLEN
+ 4] = {0}, *saveptr
;
1298 strncpy(buf
, prefix
, sizeof(buf
) - 1);
1299 char *prefixaddr
= strtok_r(buf
, "/", &saveptr
);
1301 struct in6_addr addr
;
1302 if (!prefixaddr
|| inet_pton(AF_INET6
, prefixaddr
, &addr
) < 1) {
1304 interface_update_prefix(NULL
, NULL
, &ula_prefix
->node
);
1311 char *prefixlen
= strtok_r(NULL
, ",", &saveptr
);
1312 if (!prefixlen
|| (length
= atoi(prefixlen
)) < 1 || length
> 64)
1315 if (!ula_prefix
|| !IN6_ARE_ADDR_EQUAL(&addr
, &ula_prefix
->addr
) ||
1316 ula_prefix
->length
!= length
) {
1318 interface_update_prefix(NULL
, NULL
, &ula_prefix
->node
);
1320 ula_prefix
= interface_ip_add_device_prefix(NULL
, &addr
, length
,
1321 0, 0, NULL
, 0, NULL
);
1326 interface_add_dns_server(struct interface_ip_settings
*ip
, const char *str
)
1328 struct dns_server
*s
;
1330 s
= calloc(1, sizeof(*s
));
1335 if (inet_pton(s
->af
, str
, &s
->addr
.in
))
1339 if (inet_pton(s
->af
, str
, &s
->addr
.in
))
1346 D(INTERFACE
, "Add IPv%c DNS server: %s\n",
1347 s
->af
== AF_INET6
? '6' : '4', str
);
1348 vlist_simple_add(&ip
->dns_servers
, &s
->node
);
1352 interface_add_dns_server_list(struct interface_ip_settings
*ip
, struct blob_attr
*list
)
1354 struct blob_attr
*cur
;
1357 blobmsg_for_each_attr(cur
, list
, rem
) {
1358 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
1361 if (!blobmsg_check_attr(cur
, NULL
))
1364 interface_add_dns_server(ip
, blobmsg_data(cur
));
1369 interface_add_dns_search_domain(struct interface_ip_settings
*ip
, const char *str
)
1371 struct dns_search_domain
*s
;
1372 int len
= strlen(str
);
1374 s
= calloc(1, sizeof(*s
) + len
+ 1);
1378 D(INTERFACE
, "Add DNS search domain: %s\n", str
);
1379 memcpy(s
->name
, str
, len
);
1380 vlist_simple_add(&ip
->dns_search
, &s
->node
);
1384 interface_add_dns_search_list(struct interface_ip_settings
*ip
, struct blob_attr
*list
)
1386 struct blob_attr
*cur
;
1389 blobmsg_for_each_attr(cur
, list
, rem
) {
1390 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
1393 if (!blobmsg_check_attr(cur
, NULL
))
1396 interface_add_dns_search_domain(ip
, blobmsg_data(cur
));
1401 write_resolv_conf_entries(FILE *f
, struct interface_ip_settings
*ip
, const char *dev
)
1403 struct dns_server
*s
;
1404 struct dns_search_domain
*d
;
1406 char buf
[INET6_ADDRSTRLEN
];
1408 vlist_simple_for_each_element(&ip
->dns_servers
, s
, node
) {
1409 str
= inet_ntop(s
->af
, &s
->addr
, buf
, sizeof(buf
));
1413 if (s
->af
== AF_INET6
&& IN6_IS_ADDR_LINKLOCAL(&s
->addr
.in6
))
1414 fprintf(f
, "nameserver %s%%%s\n", str
, dev
);
1416 fprintf(f
, "nameserver %s\n", str
);
1419 vlist_simple_for_each_element(&ip
->dns_search
, d
, node
) {
1420 fprintf(f
, "search %s\n", d
->name
);
1424 /* Sorting of interface resolver entries : */
1425 /* Primary on interface dns_metric : lowest metric first */
1426 /* Secondary on interface metric : lowest metric first */
1427 /* Finally alphabetical order of interface names */
1428 static int resolv_conf_iface_cmp(const void *k1
, const void *k2
, void *ptr
)
1430 const struct interface
*iface1
= k1
, *iface2
= k2
;
1432 if (iface1
->dns_metric
!= iface2
->dns_metric
)
1433 return iface1
->dns_metric
- iface2
->dns_metric
;
1435 if (iface1
->metric
!= iface2
->metric
)
1436 return iface1
->metric
- iface2
->metric
;
1438 return strcmp(iface1
->name
, iface2
->name
);
1442 __interface_write_dns_entries(FILE *f
)
1444 struct interface
*iface
;
1446 struct avl_node node
;
1448 struct avl_tree resolv_conf_iface_entries
;
1450 avl_init(&resolv_conf_iface_entries
, resolv_conf_iface_cmp
, false, NULL
);
1452 vlist_for_each_element(&interfaces
, iface
, node
) {
1453 if (iface
->state
!= IFS_UP
)
1456 if (vlist_simple_empty(&iface
->proto_ip
.dns_search
) &&
1457 vlist_simple_empty(&iface
->proto_ip
.dns_servers
) &&
1458 vlist_simple_empty(&iface
->config_ip
.dns_search
) &&
1459 vlist_simple_empty(&iface
->config_ip
.dns_servers
))
1462 entry
= calloc(1, sizeof(*entry
));
1466 entry
->node
.key
= iface
;
1467 avl_insert(&resolv_conf_iface_entries
, &entry
->node
);
1470 avl_for_each_element(&resolv_conf_iface_entries
, entry
, node
) {
1471 iface
= (struct interface
*)entry
->node
.key
;
1472 struct device
*dev
= iface
->l3_dev
.dev
;
1474 fprintf(f
, "# Interface %s\n", iface
->name
);
1476 write_resolv_conf_entries(f
, &iface
->config_ip
, dev
->ifname
);
1478 if (!iface
->proto_ip
.no_dns
)
1479 write_resolv_conf_entries(f
, &iface
->proto_ip
, dev
->ifname
);
1482 avl_remove_all_elements(&resolv_conf_iface_entries
, entry
, node
, n_entry
)
1487 interface_write_resolv_conf(void)
1489 char *path
= alloca(strlen(resolv_conf
) + 5);
1491 uint32_t crcold
, crcnew
;
1493 sprintf(path
, "%s.tmp", resolv_conf
);
1495 f
= fopen(path
, "w+");
1497 D(INTERFACE
, "Failed to open %s for writing\n", path
);
1501 __interface_write_dns_entries(f
);
1505 crcnew
= crc32_file(f
);
1508 crcold
= crcnew
+ 1;
1509 f
= fopen(resolv_conf
, "r");
1511 crcold
= crc32_file(f
);
1515 if (crcold
== crcnew
) {
1517 } else if (rename(path
, resolv_conf
) < 0) {
1518 D(INTERFACE
, "Failed to replace %s\n", resolv_conf
);
1523 void interface_ip_set_enabled(struct interface_ip_settings
*ip
, bool enabled
)
1525 struct device_addr
*addr
;
1526 struct device_route
*route
;
1527 struct device_neighbor
*neighbor
;
1529 struct interface
*iface
;
1531 ip
->enabled
= enabled
;
1533 dev
= iface
->l3_dev
.dev
;
1537 vlist_for_each_element(&ip
->addr
, addr
, node
) {
1538 bool v6
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
) ? true : false;
1540 if (addr
->flags
& DEVADDR_EXTERNAL
)
1543 if (addr
->enabled
== enabled
)
1547 system_add_address(dev
, addr
);
1549 addr
->policy_table
= (v6
) ? iface
->ip6table
: iface
->ip4table
;
1550 if (iface
->metric
|| addr
->policy_table
)
1551 interface_handle_subnet_route(iface
, addr
, true);
1553 if (addr
->policy_table
)
1554 interface_add_addr_rules(addr
, true);
1556 interface_handle_subnet_route(iface
, addr
, false);
1557 system_del_address(dev
, addr
);
1559 if (addr
->policy_table
)
1560 interface_add_addr_rules(addr
, false);
1562 addr
->enabled
= enabled
;
1565 vlist_for_each_element(&ip
->route
, route
, node
) {
1566 bool _enabled
= enabled
;
1568 if (route
->flags
& DEVADDR_EXTERNAL
)
1571 if (!enable_route(ip
, route
))
1573 if (route
->enabled
== _enabled
)
1577 interface_set_route_info(ip
->iface
, route
);
1579 if (system_add_route(dev
, route
))
1580 route
->failed
= true;
1582 system_del_route(dev
, route
);
1583 route
->enabled
= _enabled
;
1586 vlist_for_each_element(&ip
->neighbor
, neighbor
, node
) {
1587 if (neighbor
->enabled
== enabled
)
1591 if(system_add_neighbor(dev
, neighbor
))
1592 neighbor
->failed
= true;
1594 system_del_neighbor(dev
, neighbor
);
1596 neighbor
->enabled
= enabled
;
1599 struct device_prefix
*c
;
1600 struct device_prefix_assignment
*a
;
1601 list_for_each_entry(c
, &prefixes
, head
)
1602 list_for_each_entry(a
, &c
->assignments
, head
)
1603 if (!strcmp(a
->name
, ip
->iface
->name
))
1604 interface_set_prefix_address(a
, c
, ip
->iface
, enabled
);
1606 if (ip
->iface
->policy_rules_set
!= enabled
&&
1607 ip
->iface
->l3_dev
.dev
) {
1608 set_ip_lo_policy(enabled
, true, ip
->iface
);
1609 set_ip_lo_policy(enabled
, false, ip
->iface
);
1611 set_ip_source_policy(enabled
, true, IPRULE_PRIORITY_REJECT
+ ip
->iface
->l3_dev
.dev
->ifindex
,
1612 NULL
, 0, 0, ip
->iface
, "failed_policy", true);
1613 ip
->iface
->policy_rules_set
= enabled
;
1618 interface_ip_update_start(struct interface_ip_settings
*ip
)
1620 if (ip
!= &ip
->iface
->config_ip
) {
1621 vlist_simple_update(&ip
->dns_servers
);
1622 vlist_simple_update(&ip
->dns_search
);
1624 vlist_update(&ip
->route
);
1625 vlist_update(&ip
->addr
);
1626 vlist_update(&ip
->prefix
);
1627 vlist_update(&ip
->neighbor
);
1631 interface_ip_update_complete(struct interface_ip_settings
*ip
)
1633 vlist_simple_flush(&ip
->dns_servers
);
1634 vlist_simple_flush(&ip
->dns_search
);
1635 vlist_flush(&ip
->route
);
1636 vlist_flush(&ip
->addr
);
1637 vlist_flush(&ip
->prefix
);
1638 vlist_flush(&ip
->neighbor
);
1639 interface_write_resolv_conf();
1643 interface_ip_flush(struct interface_ip_settings
*ip
)
1645 if (ip
== &ip
->iface
->proto_ip
)
1646 vlist_flush_all(&ip
->iface
->host_routes
);
1647 vlist_simple_flush_all(&ip
->dns_servers
);
1648 vlist_simple_flush_all(&ip
->dns_search
);
1649 vlist_flush_all(&ip
->route
);
1650 vlist_flush_all(&ip
->addr
);
1651 vlist_flush_all(&ip
->neighbor
);
1652 vlist_flush_all(&ip
->prefix
);
1656 __interface_ip_init(struct interface_ip_settings
*ip
, struct interface
*iface
)
1660 vlist_simple_init(&ip
->dns_search
, struct dns_search_domain
, node
);
1661 vlist_simple_init(&ip
->dns_servers
, struct dns_server
, node
);
1662 vlist_init(&ip
->route
, route_cmp
, interface_update_proto_route
);
1663 vlist_init(&ip
->neighbor
, neighbor_cmp
, interface_update_proto_neighbor
);
1664 vlist_init(&ip
->addr
, addr_cmp
, interface_update_proto_addr
);
1665 vlist_init(&ip
->prefix
, prefix_cmp
, interface_update_prefix
);
1669 interface_ip_init(struct interface
*iface
)
1671 __interface_ip_init(&iface
->proto_ip
, iface
);
1672 __interface_ip_init(&iface
->config_ip
, iface
);
1673 vlist_init(&iface
->host_routes
, route_cmp
, interface_update_host_route
);
1677 interface_ip_valid_until_handler(struct uloop_timeout
*t
)
1679 time_t now
= system_get_rtime();
1680 struct interface
*iface
;
1681 vlist_for_each_element(&interfaces
, iface
, node
) {
1682 if (iface
->state
!= IFS_UP
)
1685 struct device_addr
*addr
, *addrp
;
1686 struct device_route
*route
, *routep
;
1687 struct device_prefix
*pref
, *prefp
;
1689 vlist_for_each_element_safe(&iface
->proto_ip
.addr
, addr
, node
, addrp
)
1690 if (addr
->valid_until
&& addr
->valid_until
< now
)
1691 vlist_delete(&iface
->proto_ip
.addr
, &addr
->node
);
1693 vlist_for_each_element_safe(&iface
->proto_ip
.route
, route
, node
, routep
)
1694 if (route
->valid_until
&& route
->valid_until
< now
)
1695 vlist_delete(&iface
->proto_ip
.route
, &route
->node
);
1697 vlist_for_each_element_safe(&iface
->proto_ip
.prefix
, pref
, node
, prefp
)
1698 if (pref
->valid_until
&& pref
->valid_until
< now
)
1699 vlist_delete(&iface
->proto_ip
.prefix
, &pref
->node
);
1703 uloop_timeout_set(t
, 1000);
1707 interface_ip_init_worker(void)
1709 valid_until_timeout
.cb
= interface_ip_valid_until_handler
;
1710 uloop_timeout_set(&valid_until_timeout
, 1000);