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 <sys/types.h>
20 #include <sys/socket.h>
22 #include <libubox/list.h>
28 static struct list_head devtypes
= LIST_HEAD_INIT(devtypes
);
29 static struct avl_tree devices
;
31 static const struct blobmsg_policy dev_attrs
[__DEV_ATTR_MAX
] = {
32 [DEV_ATTR_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
33 [DEV_ATTR_MTU
] = { .name
= "mtu", .type
= BLOBMSG_TYPE_INT32
},
34 [DEV_ATTR_MTU6
] = { .name
= "mtu6", .type
= BLOBMSG_TYPE_INT32
},
35 [DEV_ATTR_MACADDR
] = { .name
= "macaddr", .type
= BLOBMSG_TYPE_STRING
},
36 [DEV_ATTR_TXQUEUELEN
] = { .name
= "txqueuelen", .type
= BLOBMSG_TYPE_INT32
},
37 [DEV_ATTR_ENABLED
] = { .name
= "enabled", .type
= BLOBMSG_TYPE_BOOL
},
38 [DEV_ATTR_IPV6
] = { .name
= "ipv6", .type
= BLOBMSG_TYPE_BOOL
},
39 [DEV_ATTR_IP6SEGMENTROUTING
] = { .name
= "ip6segmentrouting", .type
= BLOBMSG_TYPE_BOOL
},
40 [DEV_ATTR_PROMISC
] = { .name
= "promisc", .type
= BLOBMSG_TYPE_BOOL
},
41 [DEV_ATTR_RPFILTER
] = { .name
= "rpfilter", .type
= BLOBMSG_TYPE_STRING
},
42 [DEV_ATTR_ACCEPTLOCAL
] = { .name
= "acceptlocal", .type
= BLOBMSG_TYPE_BOOL
},
43 [DEV_ATTR_IGMPVERSION
] = { .name
= "igmpversion", .type
= BLOBMSG_TYPE_INT32
},
44 [DEV_ATTR_MLDVERSION
] = { .name
= "mldversion", .type
= BLOBMSG_TYPE_INT32
},
45 [DEV_ATTR_NEIGHREACHABLETIME
] = { .name
= "neighreachabletime", .type
= BLOBMSG_TYPE_INT32
},
46 [DEV_ATTR_NEIGHGCSTALETIME
] = { .name
= "neighgcstaletime", .type
= BLOBMSG_TYPE_INT32
},
47 [DEV_ATTR_DADTRANSMITS
] = { .name
= "dadtransmits", .type
= BLOBMSG_TYPE_INT32
},
48 [DEV_ATTR_MULTICAST_TO_UNICAST
] = { .name
= "multicast_to_unicast", .type
= BLOBMSG_TYPE_BOOL
},
49 [DEV_ATTR_MULTICAST_ROUTER
] = { .name
= "multicast_router", .type
= BLOBMSG_TYPE_INT32
},
50 [DEV_ATTR_MULTICAST_FAST_LEAVE
] = { .name
= "multicast_fast_leave", . type
= BLOBMSG_TYPE_BOOL
},
51 [DEV_ATTR_MULTICAST
] = { .name
="multicast", .type
= BLOBMSG_TYPE_BOOL
},
52 [DEV_ATTR_LEARNING
] = { .name
="learning", .type
= BLOBMSG_TYPE_BOOL
},
53 [DEV_ATTR_UNICAST_FLOOD
] = { .name
="unicast_flood", .type
= BLOBMSG_TYPE_BOOL
},
54 [DEV_ATTR_SENDREDIRECTS
] = { .name
= "sendredirects", .type
= BLOBMSG_TYPE_BOOL
},
55 [DEV_ATTR_NEIGHLOCKTIME
] = { .name
= "neighlocktime", .type
= BLOBMSG_TYPE_INT32
},
56 [DEV_ATTR_ISOLATE
] = { .name
= "isolate", .type
= BLOBMSG_TYPE_BOOL
},
59 const struct uci_blob_param_list device_attr_list
= {
60 .n_params
= __DEV_ATTR_MAX
,
64 static int __devlock
= 0;
66 int device_type_add(struct device_type
*devtype
)
68 if (device_type_get(devtype
->name
)) {
69 netifd_log_message(L_WARNING
, "Device handler '%s' already exists\n",
74 netifd_log_message(L_NOTICE
, "Added device handler type: %s\n",
77 list_add(&devtype
->list
, &devtypes
);
81 /* Retrieve the device type for the given name. If 'bridge' is true, the type
82 * must have bridge capabilities
85 device_type_get(const char *tname
)
87 struct device_type
*cur
;
89 list_for_each_entry(cur
, &devtypes
, list
)
90 if (!strcmp(cur
->name
, tname
))
96 void device_lock(void)
101 void device_unlock(void)
105 device_free_unused(NULL
);
108 static int device_vlan_len(struct kvlist
*kv
, const void *data
)
110 return sizeof(unsigned int);
113 void device_vlan_update(bool done
)
117 avl_for_each_element(&devices
, dev
, avl
) {
118 if (!dev
->vlans
.update
)
122 if (dev
->vlan_aliases
.get_len
)
123 kvlist_free(&dev
->vlan_aliases
);
125 kvlist_init(&dev
->vlan_aliases
, device_vlan_len
);
126 vlist_update(&dev
->vlans
);
128 vlist_flush(&dev
->vlans
);
133 static int set_device_state(struct device
*dev
, bool state
)
136 /* Get ifindex for all devices being enabled so a valid */
137 /* ifindex is in place avoiding possible race conditions */
138 device_set_ifindex(dev
, system_if_resolve(dev
));
142 system_if_get_settings(dev
, &dev
->orig_settings
);
143 /* Only keep orig settings based on what needs to be set */
144 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
145 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
146 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
151 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
158 simple_device_set_state(struct device
*dev
, bool state
)
163 pdev
= dev
->parent
.dev
;
164 if (state
&& !pdev
) {
165 pdev
= system_if_get_parent(dev
);
167 device_add_user(&dev
->parent
, pdev
);
172 ret
= device_claim(&dev
->parent
);
174 device_release(&dev
->parent
);
179 return set_device_state(dev
, state
);
182 static struct device
*
183 simple_device_create(const char *name
, struct device_type
*devtype
,
184 struct blob_attr
*attr
)
186 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
187 struct device
*dev
= NULL
;
189 /* device type is unused for simple devices */
192 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
, blob_data(attr
), blob_len(attr
));
193 dev
= device_get(name
, true);
197 dev
->set_state
= simple_device_set_state
;
198 device_init_settings(dev
, tb
);
203 static void simple_device_free(struct device
*dev
)
206 device_remove_user(&dev
->parent
);
210 struct device_type simple_device_type
= {
211 .name
= "Network device",
212 .config_params
= &device_attr_list
,
214 .create
= simple_device_create
,
215 .check_state
= system_if_check
,
216 .free
= simple_device_free
,
220 device_merge_settings(struct device
*dev
, struct device_settings
*n
)
222 struct device_settings
*os
= &dev
->orig_settings
;
223 struct device_settings
*s
= &dev
->settings
;
225 memset(n
, 0, sizeof(*n
));
226 n
->mtu
= s
->flags
& DEV_OPT_MTU
? s
->mtu
: os
->mtu
;
227 n
->mtu6
= s
->flags
& DEV_OPT_MTU6
? s
->mtu6
: os
->mtu6
;
228 n
->txqueuelen
= s
->flags
& DEV_OPT_TXQUEUELEN
?
229 s
->txqueuelen
: os
->txqueuelen
;
231 (s
->flags
& (DEV_OPT_MACADDR
|DEV_OPT_DEFAULT_MACADDR
) ? s
->macaddr
: os
->macaddr
),
233 n
->ipv6
= s
->flags
& DEV_OPT_IPV6
? s
->ipv6
: os
->ipv6
;
234 n
->ip6segmentrouting
= s
->flags
& DEV_OPT_IP6SEGMENTROUTING
? s
->ip6segmentrouting
: os
->ip6segmentrouting
;
235 n
->promisc
= s
->flags
& DEV_OPT_PROMISC
? s
->promisc
: os
->promisc
;
236 n
->rpfilter
= s
->flags
& DEV_OPT_RPFILTER
? s
->rpfilter
: os
->rpfilter
;
237 n
->acceptlocal
= s
->flags
& DEV_OPT_ACCEPTLOCAL
? s
->acceptlocal
: os
->acceptlocal
;
238 n
->igmpversion
= s
->flags
& DEV_OPT_IGMPVERSION
? s
->igmpversion
: os
->igmpversion
;
239 n
->mldversion
= s
->flags
& DEV_OPT_MLDVERSION
? s
->mldversion
: os
->mldversion
;
240 n
->neigh4reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
241 s
->neigh4reachabletime
: os
->neigh4reachabletime
;
242 n
->neigh6reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
243 s
->neigh6reachabletime
: os
->neigh6reachabletime
;
244 n
->neigh4gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
245 s
->neigh4gcstaletime
: os
->neigh4gcstaletime
;
246 n
->neigh6gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
247 s
->neigh6gcstaletime
: os
->neigh6gcstaletime
;
248 n
->neigh4locktime
= s
->flags
& DEV_OPT_NEIGHLOCKTIME
?
249 s
->neigh4locktime
: os
->neigh4locktime
;
250 n
->dadtransmits
= s
->flags
& DEV_OPT_DADTRANSMITS
?
251 s
->dadtransmits
: os
->dadtransmits
;
252 n
->multicast
= s
->flags
& DEV_OPT_MULTICAST
?
253 s
->multicast
: os
->multicast
;
254 n
->multicast_to_unicast
= s
->multicast_to_unicast
;
255 n
->multicast_router
= s
->multicast_router
;
256 n
->multicast_fast_leave
= s
->multicast_fast_leave
;
257 n
->learning
= s
->learning
;
258 n
->unicast_flood
= s
->unicast_flood
;
259 n
->sendredirects
= s
->flags
& DEV_OPT_SENDREDIRECTS
?
260 s
->sendredirects
: os
->sendredirects
;
261 n
->flags
= s
->flags
| os
->flags
| os
->valid_flags
;
265 device_init_settings(struct device
*dev
, struct blob_attr
**tb
)
267 struct device_settings
*s
= &dev
->settings
;
268 struct blob_attr
*cur
;
269 struct ether_addr
*ea
;
270 bool disabled
= false;
273 if ((cur
= tb
[DEV_ATTR_ENABLED
]))
274 disabled
= !blobmsg_get_bool(cur
);
276 if ((cur
= tb
[DEV_ATTR_MTU
]) && blobmsg_get_u32(cur
) >= 68) {
277 s
->mtu
= blobmsg_get_u32(cur
);
278 s
->flags
|= DEV_OPT_MTU
;
281 if ((cur
= tb
[DEV_ATTR_MTU6
]) && blobmsg_get_u32(cur
) >= 1280) {
282 s
->mtu6
= blobmsg_get_u32(cur
);
283 s
->flags
|= DEV_OPT_MTU6
;
286 if ((cur
= tb
[DEV_ATTR_TXQUEUELEN
])) {
287 s
->txqueuelen
= blobmsg_get_u32(cur
);
288 s
->flags
|= DEV_OPT_TXQUEUELEN
;
291 if ((cur
= tb
[DEV_ATTR_MACADDR
])) {
292 ea
= ether_aton(blobmsg_data(cur
));
294 memcpy(s
->macaddr
, ea
, 6);
295 s
->flags
|= DEV_OPT_MACADDR
;
299 if ((cur
= tb
[DEV_ATTR_IPV6
])) {
300 s
->ipv6
= blobmsg_get_bool(cur
);
301 s
->flags
|= DEV_OPT_IPV6
;
304 if ((cur
= tb
[DEV_ATTR_IP6SEGMENTROUTING
])) {
305 s
->ip6segmentrouting
= blobmsg_get_bool(cur
);
306 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
309 if ((cur
= tb
[DEV_ATTR_PROMISC
])) {
310 s
->promisc
= blobmsg_get_bool(cur
);
311 s
->flags
|= DEV_OPT_PROMISC
;
314 if ((cur
= tb
[DEV_ATTR_RPFILTER
])) {
315 if (system_resolve_rpfilter(blobmsg_data(cur
), &s
->rpfilter
))
316 s
->flags
|= DEV_OPT_RPFILTER
;
318 DPRINTF("Failed to resolve rpfilter: %s\n", (char *) blobmsg_data(cur
));
321 if ((cur
= tb
[DEV_ATTR_ACCEPTLOCAL
])) {
322 s
->acceptlocal
= blobmsg_get_bool(cur
);
323 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
326 if ((cur
= tb
[DEV_ATTR_IGMPVERSION
])) {
327 s
->igmpversion
= blobmsg_get_u32(cur
);
328 if (s
->igmpversion
>= 1 && s
->igmpversion
<= 3)
329 s
->flags
|= DEV_OPT_IGMPVERSION
;
331 DPRINTF("Failed to resolve igmpversion: %d\n", blobmsg_get_u32(cur
));
334 if ((cur
= tb
[DEV_ATTR_MLDVERSION
])) {
335 s
->mldversion
= blobmsg_get_u32(cur
);
336 if (s
->mldversion
>= 1 && s
->mldversion
<= 2)
337 s
->flags
|= DEV_OPT_MLDVERSION
;
339 DPRINTF("Failed to resolve mldversion: %d\n", blobmsg_get_u32(cur
));
342 if ((cur
= tb
[DEV_ATTR_NEIGHREACHABLETIME
])) {
343 s
->neigh6reachabletime
= s
->neigh4reachabletime
= blobmsg_get_u32(cur
);
344 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
347 if ((cur
= tb
[DEV_ATTR_NEIGHGCSTALETIME
])) {
348 s
->neigh6gcstaletime
= s
->neigh4gcstaletime
= blobmsg_get_u32(cur
);
349 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
352 if ((cur
= tb
[DEV_ATTR_NEIGHLOCKTIME
])) {
353 s
->neigh4locktime
= blobmsg_get_u32(cur
);
354 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
357 if ((cur
= tb
[DEV_ATTR_DADTRANSMITS
])) {
358 s
->dadtransmits
= blobmsg_get_u32(cur
);
359 s
->flags
|= DEV_OPT_DADTRANSMITS
;
362 if ((cur
= tb
[DEV_ATTR_MULTICAST_TO_UNICAST
])) {
363 s
->multicast_to_unicast
= blobmsg_get_bool(cur
);
364 s
->flags
|= DEV_OPT_MULTICAST_TO_UNICAST
;
367 if ((cur
= tb
[DEV_ATTR_MULTICAST_ROUTER
])) {
368 s
->multicast_router
= blobmsg_get_u32(cur
);
369 if (s
->multicast_router
<= 2)
370 s
->flags
|= DEV_OPT_MULTICAST_ROUTER
;
372 DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur
));
375 if ((cur
= tb
[DEV_ATTR_MULTICAST_FAST_LEAVE
])) {
376 s
->multicast_fast_leave
= blobmsg_get_bool(cur
);
377 s
->flags
|= DEV_OPT_MULTICAST_FAST_LEAVE
;
380 if ((cur
= tb
[DEV_ATTR_MULTICAST
])) {
381 s
->multicast
= blobmsg_get_bool(cur
);
382 s
->flags
|= DEV_OPT_MULTICAST
;
385 if ((cur
= tb
[DEV_ATTR_LEARNING
])) {
386 s
->learning
= blobmsg_get_bool(cur
);
387 s
->flags
|= DEV_OPT_LEARNING
;
390 if ((cur
= tb
[DEV_ATTR_UNICAST_FLOOD
])) {
391 s
->unicast_flood
= blobmsg_get_bool(cur
);
392 s
->flags
|= DEV_OPT_UNICAST_FLOOD
;
395 if ((cur
= tb
[DEV_ATTR_SENDREDIRECTS
])) {
396 s
->sendredirects
= blobmsg_get_bool(cur
);
397 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
400 if ((cur
= tb
[DEV_ATTR_ISOLATE
])) {
401 s
->isolate
= blobmsg_get_bool(cur
);
402 s
->flags
|= DEV_OPT_ISOLATE
;
405 device_set_disabled(dev
, disabled
);
408 static void __init
dev_init(void)
410 avl_init(&devices
, avl_strcmp
, true, NULL
);
413 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
415 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
418 /* device might have been removed by an earlier callback */
427 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
431 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
432 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
436 device_fill_default_settings(struct device
*dev
)
438 struct device_settings
*s
= &dev
->settings
;
439 struct ether_addr
*ea
;
441 if (!(s
->flags
& DEV_OPT_MACADDR
)) {
442 ea
= config_get_default_macaddr(dev
->ifname
);
444 memcpy(s
->macaddr
, ea
, 6);
445 s
->flags
|= DEV_OPT_DEFAULT_MACADDR
;
450 int device_claim(struct device_user
*dep
)
452 struct device
*dev
= dep
->dev
;
462 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
463 if (++dev
->active
!= 1)
466 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
467 device_fill_default_settings(dev
);
469 /* Get ifindex for external claimed devices so a valid */
470 /* ifindex is in place avoiding possible race conditions */
471 device_set_ifindex(dev
, system_if_resolve(dev
));
475 system_if_get_settings(dev
, &dev
->orig_settings
);
477 ret
= dev
->set_state(dev
, true);
480 device_broadcast_event(dev
, DEV_EVENT_UP
);
482 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
484 dep
->claimed
= false;
490 void device_release(struct device_user
*dep
)
492 struct device
*dev
= dep
->dev
;
497 dep
->claimed
= false;
499 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
500 assert(dev
->active
>= 0);
505 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
507 dev
->set_state(dev
, false);
512 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
515 int device_check_state(struct device
*dev
)
517 if (!dev
->type
->check_state
)
518 return simple_device_type
.check_state(dev
);
520 return dev
->type
->check_state(dev
);
523 int device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
528 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
529 INIT_SAFE_LIST(&dev
->users
);
530 INIT_SAFE_LIST(&dev
->aliases
);
536 ret
= device_set_ifname(dev
, name
);
542 dev
->set_state
= set_device_state
;
547 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
551 ret
= device_init_virtual(dev
, type
, ifname
);
555 dev
->avl
.key
= dev
->ifname
;
557 ret
= avl_insert(&devices
, &dev
->avl
);
561 system_if_clear_state(dev
);
566 static struct device
*
567 device_create_default(const char *name
, bool external
)
571 if (!external
&& system_if_force_external(name
))
574 D(DEVICE
, "Create simple device '%s'\n", name
);
575 dev
= calloc(1, sizeof(*dev
));
579 dev
->external
= external
;
580 dev
->set_state
= simple_device_set_state
;
582 if (device_init(dev
, &simple_device_type
, name
) < 0) {
588 dev
->default_config
= true;
590 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
592 device_check_state(dev
);
598 device_find(const char *name
)
602 return avl_find_element(&devices
, name
, dev
, avl
);
606 device_get(const char *name
, int create
)
610 dev
= avl_find_element(&devices
, name
, dev
, avl
);
612 if (!dev
&& strchr(name
, '.'))
613 return get_vlan_device_chain(name
, create
);
616 return device_alias_get(name
+ 1);
619 if (create
> 1 && !dev
->external
) {
620 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
621 dev
->external
= true;
622 device_set_present(dev
, true);
630 return device_create_default(name
, create
> 1);
634 device_delete(struct device
*dev
)
639 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
640 avl_delete(&devices
, &dev
->avl
);
644 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
646 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
648 dep
->cb(dep
, DEV_EVENT_REMOVE
);
654 void device_cleanup(struct device
*dev
)
656 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
657 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
658 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
662 static void __device_set_present(struct device
*dev
, bool state
)
664 if (dev
->present
== state
)
667 dev
->present
= state
;
668 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
672 device_refresh_present(struct device
*dev
)
674 bool state
= dev
->sys_present
;
676 if (dev
->disabled
|| dev
->deferred
)
679 __device_set_present(dev
, state
);
682 void device_set_present(struct device
*dev
, bool state
)
684 if (dev
->sys_present
== state
)
687 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
688 dev
->sys_present
= state
;
689 device_refresh_present(dev
);
692 void device_set_link(struct device
*dev
, bool state
)
694 if (dev
->link_active
== state
)
697 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
699 dev
->link_active
= state
;
700 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
703 void device_set_ifindex(struct device
*dev
, int ifindex
)
705 if (dev
->ifindex
== ifindex
)
708 dev
->ifindex
= ifindex
;
709 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
712 int device_set_ifname(struct device
*dev
, const char *name
)
716 if (!strcmp(dev
->ifname
, name
))
719 if (strlen(name
) > sizeof(dev
->ifname
) - 1)
723 avl_delete(&devices
, &dev
->avl
);
725 strcpy(dev
->ifname
, name
);
728 ret
= avl_insert(&devices
, &dev
->avl
);
731 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
736 static int device_refcount(struct device
*dev
)
738 struct list_head
*list
;
741 list_for_each(list
, &dev
->users
.list
)
744 list_for_each(list
, &dev
->aliases
.list
)
751 __device_add_user(struct device_user
*dep
, struct device
*dev
)
753 struct safe_list
*head
;
758 head
= &dev
->aliases
;
762 safe_list_add(&dep
->list
, head
);
763 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
765 if (dep
->cb
&& dev
->present
) {
766 dep
->cb(dep
, DEV_EVENT_ADD
);
768 dep
->cb(dep
, DEV_EVENT_UP
);
770 if (dev
->link_active
)
771 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
775 void device_add_user(struct device_user
*dep
, struct device
*dev
)
781 device_remove_user(dep
);
786 __device_add_user(dep
, dev
);
790 device_free(struct device
*dev
)
795 dev
->type
->free(dev
);
800 __device_free_unused(struct device
*dev
)
802 if (!safe_list_empty(&dev
->users
) ||
803 !safe_list_empty(&dev
->aliases
) ||
804 dev
->current_config
|| __devlock
)
810 void device_remove_user(struct device_user
*dep
)
812 struct device
*dev
= dep
->dev
;
817 dep
->hotplug
= false;
821 safe_list_del(&dep
->list
);
823 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
824 __device_free_unused(dev
);
828 device_free_unused(struct device
*dev
)
833 return __device_free_unused(dev
);
835 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
)
836 __device_free_unused(dev
);
840 device_init_pending(void)
842 struct device
*dev
, *tmp
;
844 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
845 if (!dev
->config_pending
)
848 dev
->type
->config_init(dev
);
849 dev
->config_pending
= false;
850 device_check_state(dev
);
855 device_check_ip6segmentrouting(void)
858 bool ip6segmentrouting
= false;
860 avl_for_each_element(&devices
, dev
, avl
)
861 ip6segmentrouting
|= dev
->settings
.ip6segmentrouting
;
863 return ip6segmentrouting
;
866 static enum dev_change_type
867 device_set_config(struct device
*dev
, struct device_type
*type
,
868 struct blob_attr
*attr
)
870 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
871 const struct uci_blob_param_list
*cfg
= type
->config_params
;
873 if (type
!= dev
->type
)
874 return DEV_CONFIG_RECREATE
;
876 if (dev
->type
->reload
)
877 return dev
->type
->reload(dev
, attr
);
879 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
880 return DEV_CONFIG_NO_CHANGE
;
882 if (cfg
== &device_attr_list
) {
883 memset(tb
, 0, sizeof(tb
));
886 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
887 blob_data(attr
), blob_len(attr
));
889 device_init_settings(dev
, tb
);
890 return DEV_CONFIG_RESTART
;
892 return DEV_CONFIG_RECREATE
;
896 device_apply_config(struct device
*dev
, struct device_type
*type
,
897 struct blob_attr
*config
)
899 enum dev_change_type change
;
901 change
= device_set_config(dev
, type
, config
);
903 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
904 change
= DEV_CONFIG_APPLIED
;
908 case DEV_CONFIG_RESTART
:
909 case DEV_CONFIG_APPLIED
:
910 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
911 config
= blob_memdup(config
);
913 dev
->config
= config
;
914 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
917 device_set_present(dev
, false);
918 if (dev
->active
&& !dev
->external
) {
919 ret
= dev
->set_state(dev
, false);
921 ret
= dev
->set_state(dev
, true);
924 device_set_present(dev
, true);
927 case DEV_CONFIG_NO_CHANGE
:
928 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
930 case DEV_CONFIG_RECREATE
:
938 device_replace(struct device
*dev
, struct device
*odev
)
940 struct device_user
*dep
, *tmp
;
944 device_set_present(odev
, false);
946 list_for_each_entry_safe(dep
, tmp
, &odev
->users
.list
, list
.list
) {
948 safe_list_del(&dep
->list
);
949 __device_add_user(dep
, dev
);
957 device_reset_config(void)
961 avl_for_each_element(&devices
, dev
, avl
)
962 dev
->current_config
= false;
966 device_reset_old(void)
968 struct device
*dev
, *tmp
, *ndev
;
970 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
971 if (dev
->current_config
|| dev
->default_config
)
974 if (dev
->type
!= &simple_device_type
)
977 ndev
= device_create_default(dev
->ifname
, dev
->external
);
981 device_replace(ndev
, dev
);
986 device_create(const char *name
, struct device_type
*type
,
987 struct blob_attr
*config
)
989 struct device
*odev
= NULL
, *dev
;
990 enum dev_change_type change
;
992 odev
= device_find(name
);
994 odev
->current_config
= true;
995 change
= device_apply_config(odev
, type
, config
);
997 case DEV_CONFIG_RECREATE
:
998 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
1005 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
1007 config
= blob_memdup(config
);
1011 dev
= type
->create(name
, type
, config
);
1015 dev
->current_config
= true;
1016 dev
->config
= config
;
1018 device_replace(dev
, odev
);
1020 if (!config_init
&& dev
->config_pending
) {
1021 type
->config_init(dev
);
1022 dev
->config_pending
= false;
1025 device_check_state(dev
);
1031 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
1033 struct device_settings st
;
1037 avl_for_each_element(&devices
, dev
, avl
) {
1040 c
= blobmsg_open_table(b
, dev
->ifname
);
1041 device_dump_status(b
, dev
);
1042 blobmsg_close_table(b
, c
);
1048 blobmsg_add_u8(b
, "external", dev
->external
);
1049 blobmsg_add_u8(b
, "present", dev
->present
);
1050 blobmsg_add_string(b
, "type", dev
->type
->name
);
1055 blobmsg_add_u8(b
, "up", !!dev
->active
);
1056 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1058 if (dev
->type
->dump_info
)
1059 dev
->type
->dump_info(dev
, b
);
1061 system_if_dump_info(dev
, b
);
1064 device_merge_settings(dev
, &st
);
1065 if (st
.flags
& DEV_OPT_MTU
)
1066 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1067 if (st
.flags
& DEV_OPT_MTU6
)
1068 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1069 if (st
.flags
& DEV_OPT_MACADDR
)
1070 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1071 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1072 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1073 if (st
.flags
& DEV_OPT_IPV6
)
1074 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1075 if (st
.flags
& DEV_OPT_IP6SEGMENTROUTING
)
1076 blobmsg_add_u8(b
, "ip6segmentrouting", st
.ip6segmentrouting
);
1077 if (st
.flags
& DEV_OPT_PROMISC
)
1078 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1079 if (st
.flags
& DEV_OPT_RPFILTER
)
1080 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1081 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1082 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1083 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1084 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1085 if (st
.flags
& DEV_OPT_MLDVERSION
)
1086 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1087 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1088 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1089 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1091 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1092 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1093 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1095 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1096 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1097 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1098 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1099 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1100 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1101 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1102 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1103 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1104 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1105 if (st
.flags
& DEV_OPT_MULTICAST
)
1106 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1107 if (st
.flags
& DEV_OPT_LEARNING
)
1108 blobmsg_add_u8(b
, "learning", st
.learning
);
1109 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1110 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1111 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1112 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1115 s
= blobmsg_open_table(b
, "statistics");
1116 if (dev
->type
->dump_stats
)
1117 dev
->type
->dump_stats(dev
, b
);
1119 system_if_dump_stats(dev
, b
);
1120 blobmsg_close_table(b
, s
);
1123 static void __init
simple_device_type_init(void)
1125 device_type_add(&simple_device_type
);