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_PROMISC
] = { .name
= "promisc", .type
= BLOBMSG_TYPE_BOOL
},
40 [DEV_ATTR_RPFILTER
] = { .name
= "rpfilter", .type
= BLOBMSG_TYPE_STRING
},
41 [DEV_ATTR_ACCEPTLOCAL
] = { .name
= "acceptlocal", .type
= BLOBMSG_TYPE_BOOL
},
42 [DEV_ATTR_IGMPVERSION
] = { .name
= "igmpversion", .type
= BLOBMSG_TYPE_INT32
},
43 [DEV_ATTR_MLDVERSION
] = { .name
= "mldversion", .type
= BLOBMSG_TYPE_INT32
},
44 [DEV_ATTR_NEIGHREACHABLETIME
] = { .name
= "neighreachabletime", .type
= BLOBMSG_TYPE_INT32
},
45 [DEV_ATTR_NEIGHGCSTALETIME
] = { .name
= "neighgcstaletime", .type
= BLOBMSG_TYPE_INT32
},
46 [DEV_ATTR_DADTRANSMITS
] = { .name
= "dadtransmits", .type
= BLOBMSG_TYPE_INT32
},
47 [DEV_ATTR_MULTICAST_TO_UNICAST
] = { .name
= "multicast_to_unicast", .type
= BLOBMSG_TYPE_BOOL
},
48 [DEV_ATTR_MULTICAST_ROUTER
] = { .name
= "multicast_router", .type
= BLOBMSG_TYPE_INT32
},
49 [DEV_ATTR_MULTICAST_FAST_LEAVE
] = { .name
= "multicast_fast_leave", . type
= BLOBMSG_TYPE_BOOL
},
50 [DEV_ATTR_MULTICAST
] = { .name
="multicast", .type
= BLOBMSG_TYPE_BOOL
},
51 [DEV_ATTR_LEARNING
] = { .name
="learning", .type
= BLOBMSG_TYPE_BOOL
},
52 [DEV_ATTR_UNICAST_FLOOD
] = { .name
="unicast_flood", .type
= BLOBMSG_TYPE_BOOL
},
53 [DEV_ATTR_SENDREDIRECTS
] = { .name
= "sendredirects", .type
= BLOBMSG_TYPE_BOOL
},
54 [DEV_ATTR_NEIGHLOCKTIME
] = { .name
= "neighlocktime", .type
= BLOBMSG_TYPE_INT32
},
55 [DEV_ATTR_ISOLATE
] = { .name
= "isolate", .type
= BLOBMSG_TYPE_BOOL
},
58 const struct uci_blob_param_list device_attr_list
= {
59 .n_params
= __DEV_ATTR_MAX
,
63 static int __devlock
= 0;
65 int device_type_add(struct device_type
*devtype
)
67 if (device_type_get(devtype
->name
)) {
68 netifd_log_message(L_WARNING
, "Device handler '%s' already exists\n",
73 netifd_log_message(L_NOTICE
, "Added device handler type: %s\n",
76 list_add(&devtype
->list
, &devtypes
);
80 /* Retrieve the device type for the given name. If 'bridge' is true, the type
81 * must have bridge capabilities
84 device_type_get(const char *tname
)
86 struct device_type
*cur
;
88 list_for_each_entry(cur
, &devtypes
, list
)
89 if (!strcmp(cur
->name
, tname
))
95 void device_lock(void)
100 void device_unlock(void)
104 device_free_unused(NULL
);
107 static int device_vlan_len(struct kvlist
*kv
, const void *data
)
109 return sizeof(unsigned int);
112 void device_vlan_update(bool done
)
116 avl_for_each_element(&devices
, dev
, avl
) {
117 if (!dev
->vlans
.update
)
121 if (dev
->vlan_aliases
.get_len
)
122 kvlist_free(&dev
->vlan_aliases
);
124 kvlist_init(&dev
->vlan_aliases
, device_vlan_len
);
125 vlist_update(&dev
->vlans
);
127 vlist_flush(&dev
->vlans
);
132 static int set_device_state(struct device
*dev
, bool state
)
135 /* Get ifindex for all devices being enabled so a valid */
136 /* ifindex is in place avoiding possible race conditions */
137 device_set_ifindex(dev
, system_if_resolve(dev
));
141 system_if_get_settings(dev
, &dev
->orig_settings
);
142 /* Only keep orig settings based on what needs to be set */
143 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
144 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
145 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
150 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
157 simple_device_set_state(struct device
*dev
, bool state
)
162 pdev
= dev
->parent
.dev
;
163 if (state
&& !pdev
) {
164 pdev
= system_if_get_parent(dev
);
166 device_add_user(&dev
->parent
, pdev
);
171 ret
= device_claim(&dev
->parent
);
173 device_release(&dev
->parent
);
178 return set_device_state(dev
, state
);
181 static struct device
*
182 simple_device_create(const char *name
, struct device_type
*devtype
,
183 struct blob_attr
*attr
)
185 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
186 struct device
*dev
= NULL
;
188 /* device type is unused for simple devices */
191 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
, blob_data(attr
), blob_len(attr
));
192 dev
= device_get(name
, true);
196 dev
->set_state
= simple_device_set_state
;
197 device_init_settings(dev
, tb
);
202 static void simple_device_free(struct device
*dev
)
205 device_remove_user(&dev
->parent
);
209 struct device_type simple_device_type
= {
210 .name
= "Network device",
211 .config_params
= &device_attr_list
,
213 .create
= simple_device_create
,
214 .check_state
= system_if_check
,
215 .free
= simple_device_free
,
219 device_merge_settings(struct device
*dev
, struct device_settings
*n
)
221 struct device_settings
*os
= &dev
->orig_settings
;
222 struct device_settings
*s
= &dev
->settings
;
224 memset(n
, 0, sizeof(*n
));
225 n
->mtu
= s
->flags
& DEV_OPT_MTU
? s
->mtu
: os
->mtu
;
226 n
->mtu6
= s
->flags
& DEV_OPT_MTU6
? s
->mtu6
: os
->mtu6
;
227 n
->txqueuelen
= s
->flags
& DEV_OPT_TXQUEUELEN
?
228 s
->txqueuelen
: os
->txqueuelen
;
230 (s
->flags
& (DEV_OPT_MACADDR
|DEV_OPT_DEFAULT_MACADDR
) ? s
->macaddr
: os
->macaddr
),
232 n
->ipv6
= s
->flags
& DEV_OPT_IPV6
? s
->ipv6
: os
->ipv6
;
233 n
->promisc
= s
->flags
& DEV_OPT_PROMISC
? s
->promisc
: os
->promisc
;
234 n
->rpfilter
= s
->flags
& DEV_OPT_RPFILTER
? s
->rpfilter
: os
->rpfilter
;
235 n
->acceptlocal
= s
->flags
& DEV_OPT_ACCEPTLOCAL
? s
->acceptlocal
: os
->acceptlocal
;
236 n
->igmpversion
= s
->flags
& DEV_OPT_IGMPVERSION
? s
->igmpversion
: os
->igmpversion
;
237 n
->mldversion
= s
->flags
& DEV_OPT_MLDVERSION
? s
->mldversion
: os
->mldversion
;
238 n
->neigh4reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
239 s
->neigh4reachabletime
: os
->neigh4reachabletime
;
240 n
->neigh6reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
241 s
->neigh6reachabletime
: os
->neigh6reachabletime
;
242 n
->neigh4gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
243 s
->neigh4gcstaletime
: os
->neigh4gcstaletime
;
244 n
->neigh6gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
245 s
->neigh6gcstaletime
: os
->neigh6gcstaletime
;
246 n
->neigh4locktime
= s
->flags
& DEV_OPT_NEIGHLOCKTIME
?
247 s
->neigh4locktime
: os
->neigh4locktime
;
248 n
->dadtransmits
= s
->flags
& DEV_OPT_DADTRANSMITS
?
249 s
->dadtransmits
: os
->dadtransmits
;
250 n
->multicast
= s
->flags
& DEV_OPT_MULTICAST
?
251 s
->multicast
: os
->multicast
;
252 n
->multicast_to_unicast
= s
->multicast_to_unicast
;
253 n
->multicast_router
= s
->multicast_router
;
254 n
->multicast_fast_leave
= s
->multicast_fast_leave
;
255 n
->learning
= s
->learning
;
256 n
->unicast_flood
= s
->unicast_flood
;
257 n
->sendredirects
= s
->flags
& DEV_OPT_SENDREDIRECTS
?
258 s
->sendredirects
: os
->sendredirects
;
259 n
->flags
= s
->flags
| os
->flags
| os
->valid_flags
;
263 device_init_settings(struct device
*dev
, struct blob_attr
**tb
)
265 struct device_settings
*s
= &dev
->settings
;
266 struct blob_attr
*cur
;
267 struct ether_addr
*ea
;
268 bool disabled
= false;
271 if ((cur
= tb
[DEV_ATTR_ENABLED
]))
272 disabled
= !blobmsg_get_bool(cur
);
274 if ((cur
= tb
[DEV_ATTR_MTU
]) && blobmsg_get_u32(cur
) >= 68) {
275 s
->mtu
= blobmsg_get_u32(cur
);
276 s
->flags
|= DEV_OPT_MTU
;
279 if ((cur
= tb
[DEV_ATTR_MTU6
]) && blobmsg_get_u32(cur
) >= 1280) {
280 s
->mtu6
= blobmsg_get_u32(cur
);
281 s
->flags
|= DEV_OPT_MTU6
;
284 if ((cur
= tb
[DEV_ATTR_TXQUEUELEN
])) {
285 s
->txqueuelen
= blobmsg_get_u32(cur
);
286 s
->flags
|= DEV_OPT_TXQUEUELEN
;
289 if ((cur
= tb
[DEV_ATTR_MACADDR
])) {
290 ea
= ether_aton(blobmsg_data(cur
));
292 memcpy(s
->macaddr
, ea
, 6);
293 s
->flags
|= DEV_OPT_MACADDR
;
297 if ((cur
= tb
[DEV_ATTR_IPV6
])) {
298 s
->ipv6
= blobmsg_get_bool(cur
);
299 s
->flags
|= DEV_OPT_IPV6
;
302 if ((cur
= tb
[DEV_ATTR_PROMISC
])) {
303 s
->promisc
= blobmsg_get_bool(cur
);
304 s
->flags
|= DEV_OPT_PROMISC
;
307 if ((cur
= tb
[DEV_ATTR_RPFILTER
])) {
308 if (system_resolve_rpfilter(blobmsg_data(cur
), &s
->rpfilter
))
309 s
->flags
|= DEV_OPT_RPFILTER
;
311 DPRINTF("Failed to resolve rpfilter: %s\n", (char *) blobmsg_data(cur
));
314 if ((cur
= tb
[DEV_ATTR_ACCEPTLOCAL
])) {
315 s
->acceptlocal
= blobmsg_get_bool(cur
);
316 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
319 if ((cur
= tb
[DEV_ATTR_IGMPVERSION
])) {
320 s
->igmpversion
= blobmsg_get_u32(cur
);
321 if (s
->igmpversion
>= 1 && s
->igmpversion
<= 3)
322 s
->flags
|= DEV_OPT_IGMPVERSION
;
324 DPRINTF("Failed to resolve igmpversion: %d\n", blobmsg_get_u32(cur
));
327 if ((cur
= tb
[DEV_ATTR_MLDVERSION
])) {
328 s
->mldversion
= blobmsg_get_u32(cur
);
329 if (s
->mldversion
>= 1 && s
->mldversion
<= 2)
330 s
->flags
|= DEV_OPT_MLDVERSION
;
332 DPRINTF("Failed to resolve mldversion: %d\n", blobmsg_get_u32(cur
));
335 if ((cur
= tb
[DEV_ATTR_NEIGHREACHABLETIME
])) {
336 s
->neigh6reachabletime
= s
->neigh4reachabletime
= blobmsg_get_u32(cur
);
337 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
340 if ((cur
= tb
[DEV_ATTR_NEIGHGCSTALETIME
])) {
341 s
->neigh6gcstaletime
= s
->neigh4gcstaletime
= blobmsg_get_u32(cur
);
342 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
345 if ((cur
= tb
[DEV_ATTR_NEIGHLOCKTIME
])) {
346 s
->neigh4locktime
= blobmsg_get_u32(cur
);
347 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
350 if ((cur
= tb
[DEV_ATTR_DADTRANSMITS
])) {
351 s
->dadtransmits
= blobmsg_get_u32(cur
);
352 s
->flags
|= DEV_OPT_DADTRANSMITS
;
355 if ((cur
= tb
[DEV_ATTR_MULTICAST_TO_UNICAST
])) {
356 s
->multicast_to_unicast
= blobmsg_get_bool(cur
);
357 s
->flags
|= DEV_OPT_MULTICAST_TO_UNICAST
;
360 if ((cur
= tb
[DEV_ATTR_MULTICAST_ROUTER
])) {
361 s
->multicast_router
= blobmsg_get_u32(cur
);
362 if (s
->multicast_router
<= 2)
363 s
->flags
|= DEV_OPT_MULTICAST_ROUTER
;
365 DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur
));
368 if ((cur
= tb
[DEV_ATTR_MULTICAST_FAST_LEAVE
])) {
369 s
->multicast_fast_leave
= blobmsg_get_bool(cur
);
370 s
->flags
|= DEV_OPT_MULTICAST_FAST_LEAVE
;
373 if ((cur
= tb
[DEV_ATTR_MULTICAST
])) {
374 s
->multicast
= blobmsg_get_bool(cur
);
375 s
->flags
|= DEV_OPT_MULTICAST
;
378 if ((cur
= tb
[DEV_ATTR_LEARNING
])) {
379 s
->learning
= blobmsg_get_bool(cur
);
380 s
->flags
|= DEV_OPT_LEARNING
;
383 if ((cur
= tb
[DEV_ATTR_UNICAST_FLOOD
])) {
384 s
->unicast_flood
= blobmsg_get_bool(cur
);
385 s
->flags
|= DEV_OPT_UNICAST_FLOOD
;
388 if ((cur
= tb
[DEV_ATTR_SENDREDIRECTS
])) {
389 s
->sendredirects
= blobmsg_get_bool(cur
);
390 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
393 if ((cur
= tb
[DEV_ATTR_ISOLATE
])) {
394 s
->isolate
= blobmsg_get_bool(cur
);
395 s
->flags
|= DEV_OPT_ISOLATE
;
398 device_set_disabled(dev
, disabled
);
401 static void __init
dev_init(void)
403 avl_init(&devices
, avl_strcmp
, true, NULL
);
406 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
408 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
411 /* device might have been removed by an earlier callback */
420 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
424 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
425 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
429 device_fill_default_settings(struct device
*dev
)
431 struct device_settings
*s
= &dev
->settings
;
432 struct ether_addr
*ea
;
434 if (!(s
->flags
& DEV_OPT_MACADDR
)) {
435 ea
= config_get_default_macaddr(dev
->ifname
);
437 memcpy(s
->macaddr
, ea
, 6);
438 s
->flags
|= DEV_OPT_DEFAULT_MACADDR
;
443 int device_claim(struct device_user
*dep
)
445 struct device
*dev
= dep
->dev
;
455 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
456 if (++dev
->active
!= 1)
459 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
460 device_fill_default_settings(dev
);
462 /* Get ifindex for external claimed devices so a valid */
463 /* ifindex is in place avoiding possible race conditions */
464 device_set_ifindex(dev
, system_if_resolve(dev
));
468 system_if_get_settings(dev
, &dev
->orig_settings
);
470 ret
= dev
->set_state(dev
, true);
473 device_broadcast_event(dev
, DEV_EVENT_UP
);
475 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
477 dep
->claimed
= false;
483 void device_release(struct device_user
*dep
)
485 struct device
*dev
= dep
->dev
;
490 dep
->claimed
= false;
492 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
493 assert(dev
->active
>= 0);
498 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
500 dev
->set_state(dev
, false);
505 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
508 int device_check_state(struct device
*dev
)
510 if (!dev
->type
->check_state
)
511 return simple_device_type
.check_state(dev
);
513 return dev
->type
->check_state(dev
);
516 int device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
521 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
522 INIT_SAFE_LIST(&dev
->users
);
523 INIT_SAFE_LIST(&dev
->aliases
);
529 ret
= device_set_ifname(dev
, name
);
535 dev
->set_state
= set_device_state
;
540 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
544 ret
= device_init_virtual(dev
, type
, ifname
);
548 dev
->avl
.key
= dev
->ifname
;
550 ret
= avl_insert(&devices
, &dev
->avl
);
554 system_if_clear_state(dev
);
559 static struct device
*
560 device_create_default(const char *name
, bool external
)
564 if (!external
&& system_if_force_external(name
))
567 D(DEVICE
, "Create simple device '%s'\n", name
);
568 dev
= calloc(1, sizeof(*dev
));
572 dev
->external
= external
;
573 dev
->set_state
= simple_device_set_state
;
575 if (device_init(dev
, &simple_device_type
, name
) < 0) {
581 dev
->default_config
= true;
583 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
585 device_check_state(dev
);
591 device_find(const char *name
)
595 return avl_find_element(&devices
, name
, dev
, avl
);
599 device_get(const char *name
, int create
)
603 dev
= avl_find_element(&devices
, name
, dev
, avl
);
605 if (!dev
&& strchr(name
, '.'))
606 return get_vlan_device_chain(name
, create
);
609 return device_alias_get(name
+ 1);
612 if (create
> 1 && !dev
->external
) {
613 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
614 dev
->external
= true;
615 device_set_present(dev
, true);
623 return device_create_default(name
, create
> 1);
627 device_delete(struct device
*dev
)
632 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
633 avl_delete(&devices
, &dev
->avl
);
637 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
639 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
641 dep
->cb(dep
, DEV_EVENT_REMOVE
);
647 void device_cleanup(struct device
*dev
)
649 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
650 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
651 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
655 static void __device_set_present(struct device
*dev
, bool state
)
657 if (dev
->present
== state
)
660 dev
->present
= state
;
661 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
665 device_refresh_present(struct device
*dev
)
667 bool state
= dev
->sys_present
;
669 if (dev
->disabled
|| dev
->deferred
)
672 __device_set_present(dev
, state
);
675 void device_set_present(struct device
*dev
, bool state
)
677 if (dev
->sys_present
== state
)
680 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
681 dev
->sys_present
= state
;
682 device_refresh_present(dev
);
685 void device_set_link(struct device
*dev
, bool state
)
687 if (dev
->link_active
== state
)
690 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
692 dev
->link_active
= state
;
693 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
696 void device_set_ifindex(struct device
*dev
, int ifindex
)
698 if (dev
->ifindex
== ifindex
)
701 dev
->ifindex
= ifindex
;
702 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
705 int device_set_ifname(struct device
*dev
, const char *name
)
709 if (!strcmp(dev
->ifname
, name
))
712 if (strlen(name
) > sizeof(dev
->ifname
) - 1)
716 avl_delete(&devices
, &dev
->avl
);
718 strcpy(dev
->ifname
, name
);
721 ret
= avl_insert(&devices
, &dev
->avl
);
724 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
729 static int device_refcount(struct device
*dev
)
731 struct list_head
*list
;
734 list_for_each(list
, &dev
->users
.list
)
737 list_for_each(list
, &dev
->aliases
.list
)
744 __device_add_user(struct device_user
*dep
, struct device
*dev
)
746 struct safe_list
*head
;
751 head
= &dev
->aliases
;
755 safe_list_add(&dep
->list
, head
);
756 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
758 if (dep
->cb
&& dev
->present
) {
759 dep
->cb(dep
, DEV_EVENT_ADD
);
761 dep
->cb(dep
, DEV_EVENT_UP
);
763 if (dev
->link_active
)
764 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
768 void device_add_user(struct device_user
*dep
, struct device
*dev
)
774 device_remove_user(dep
);
779 __device_add_user(dep
, dev
);
783 device_free(struct device
*dev
)
788 dev
->type
->free(dev
);
793 __device_free_unused(struct device
*dev
)
795 if (!safe_list_empty(&dev
->users
) ||
796 !safe_list_empty(&dev
->aliases
) ||
797 dev
->current_config
|| __devlock
)
803 void device_remove_user(struct device_user
*dep
)
805 struct device
*dev
= dep
->dev
;
810 dep
->hotplug
= false;
814 safe_list_del(&dep
->list
);
816 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
817 __device_free_unused(dev
);
821 device_free_unused(struct device
*dev
)
826 return __device_free_unused(dev
);
828 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
)
829 __device_free_unused(dev
);
833 device_init_pending(void)
835 struct device
*dev
, *tmp
;
837 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
838 if (!dev
->config_pending
)
841 dev
->type
->config_init(dev
);
842 dev
->config_pending
= false;
843 device_check_state(dev
);
847 static enum dev_change_type
848 device_set_config(struct device
*dev
, struct device_type
*type
,
849 struct blob_attr
*attr
)
851 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
852 const struct uci_blob_param_list
*cfg
= type
->config_params
;
854 if (type
!= dev
->type
)
855 return DEV_CONFIG_RECREATE
;
857 if (dev
->type
->reload
)
858 return dev
->type
->reload(dev
, attr
);
860 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
861 return DEV_CONFIG_NO_CHANGE
;
863 if (cfg
== &device_attr_list
) {
864 memset(tb
, 0, sizeof(tb
));
867 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
868 blob_data(attr
), blob_len(attr
));
870 device_init_settings(dev
, tb
);
871 return DEV_CONFIG_RESTART
;
873 return DEV_CONFIG_RECREATE
;
877 device_apply_config(struct device
*dev
, struct device_type
*type
,
878 struct blob_attr
*config
)
880 enum dev_change_type change
;
882 change
= device_set_config(dev
, type
, config
);
884 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
885 change
= DEV_CONFIG_APPLIED
;
889 case DEV_CONFIG_RESTART
:
890 case DEV_CONFIG_APPLIED
:
891 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
892 config
= blob_memdup(config
);
894 dev
->config
= config
;
895 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
898 device_set_present(dev
, false);
899 if (dev
->active
&& !dev
->external
) {
900 ret
= dev
->set_state(dev
, false);
902 ret
= dev
->set_state(dev
, true);
905 device_set_present(dev
, true);
908 case DEV_CONFIG_NO_CHANGE
:
909 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
911 case DEV_CONFIG_RECREATE
:
919 device_replace(struct device
*dev
, struct device
*odev
)
921 struct device_user
*dep
, *tmp
;
925 device_set_present(odev
, false);
927 list_for_each_entry_safe(dep
, tmp
, &odev
->users
.list
, list
.list
) {
929 safe_list_del(&dep
->list
);
930 __device_add_user(dep
, dev
);
938 device_reset_config(void)
942 avl_for_each_element(&devices
, dev
, avl
)
943 dev
->current_config
= false;
947 device_reset_old(void)
949 struct device
*dev
, *tmp
, *ndev
;
951 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
952 if (dev
->current_config
|| dev
->default_config
)
955 if (dev
->type
!= &simple_device_type
)
958 ndev
= device_create_default(dev
->ifname
, dev
->external
);
962 device_replace(ndev
, dev
);
967 device_create(const char *name
, struct device_type
*type
,
968 struct blob_attr
*config
)
970 struct device
*odev
= NULL
, *dev
;
971 enum dev_change_type change
;
973 odev
= device_find(name
);
975 odev
->current_config
= true;
976 change
= device_apply_config(odev
, type
, config
);
978 case DEV_CONFIG_RECREATE
:
979 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
986 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
988 config
= blob_memdup(config
);
992 dev
= type
->create(name
, type
, config
);
996 dev
->current_config
= true;
997 dev
->config
= config
;
999 device_replace(dev
, odev
);
1001 if (!config_init
&& dev
->config_pending
) {
1002 type
->config_init(dev
);
1003 dev
->config_pending
= false;
1006 device_check_state(dev
);
1012 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
1014 struct device_settings st
;
1018 avl_for_each_element(&devices
, dev
, avl
) {
1021 c
= blobmsg_open_table(b
, dev
->ifname
);
1022 device_dump_status(b
, dev
);
1023 blobmsg_close_table(b
, c
);
1029 blobmsg_add_u8(b
, "external", dev
->external
);
1030 blobmsg_add_u8(b
, "present", dev
->present
);
1031 blobmsg_add_string(b
, "type", dev
->type
->name
);
1036 blobmsg_add_u8(b
, "up", !!dev
->active
);
1037 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1039 if (dev
->type
->dump_info
)
1040 dev
->type
->dump_info(dev
, b
);
1042 system_if_dump_info(dev
, b
);
1045 device_merge_settings(dev
, &st
);
1046 if (st
.flags
& DEV_OPT_MTU
)
1047 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1048 if (st
.flags
& DEV_OPT_MTU6
)
1049 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1050 if (st
.flags
& DEV_OPT_MACADDR
)
1051 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1052 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1053 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1054 if (st
.flags
& DEV_OPT_IPV6
)
1055 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1056 if (st
.flags
& DEV_OPT_PROMISC
)
1057 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1058 if (st
.flags
& DEV_OPT_RPFILTER
)
1059 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1060 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1061 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1062 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1063 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1064 if (st
.flags
& DEV_OPT_MLDVERSION
)
1065 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1066 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1067 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1068 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1070 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1071 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1072 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1074 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1075 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1076 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1077 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1078 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1079 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1080 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1081 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1082 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1083 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1084 if (st
.flags
& DEV_OPT_MULTICAST
)
1085 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1086 if (st
.flags
& DEV_OPT_LEARNING
)
1087 blobmsg_add_u8(b
, "learning", st
.learning
);
1088 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1089 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1090 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1091 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1094 s
= blobmsg_open_table(b
, "statistics");
1095 if (dev
->type
->dump_stats
)
1096 dev
->type
->dump_stats(dev
, b
);
1098 system_if_dump_stats(dev
, b
);
1099 blobmsg_close_table(b
, s
);
1102 static void __init
simple_device_type_init(void)
1104 device_type_add(&simple_device_type
);