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>
21 #include <net/ethernet.h>
24 #include <netinet/ether.h>
27 #include <libubox/list.h>
33 static struct list_head devtypes
= LIST_HEAD_INIT(devtypes
);
34 static struct avl_tree devices
;
36 static const struct blobmsg_policy dev_attrs
[__DEV_ATTR_MAX
] = {
37 [DEV_ATTR_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
38 [DEV_ATTR_MTU
] = { .name
= "mtu", .type
= BLOBMSG_TYPE_INT32
},
39 [DEV_ATTR_MTU6
] = { .name
= "mtu6", .type
= BLOBMSG_TYPE_INT32
},
40 [DEV_ATTR_MACADDR
] = { .name
= "macaddr", .type
= BLOBMSG_TYPE_STRING
},
41 [DEV_ATTR_TXQUEUELEN
] = { .name
= "txqueuelen", .type
= BLOBMSG_TYPE_INT32
},
42 [DEV_ATTR_ENABLED
] = { .name
= "enabled", .type
= BLOBMSG_TYPE_BOOL
},
43 [DEV_ATTR_IPV6
] = { .name
= "ipv6", .type
= BLOBMSG_TYPE_BOOL
},
44 [DEV_ATTR_PROMISC
] = { .name
= "promisc", .type
= BLOBMSG_TYPE_BOOL
},
45 [DEV_ATTR_RPFILTER
] = { .name
= "rpfilter", .type
= BLOBMSG_TYPE_STRING
},
46 [DEV_ATTR_ACCEPTLOCAL
] = { .name
= "acceptlocal", .type
= BLOBMSG_TYPE_BOOL
},
47 [DEV_ATTR_IGMPVERSION
] = { .name
= "igmpversion", .type
= BLOBMSG_TYPE_INT32
},
48 [DEV_ATTR_MLDVERSION
] = { .name
= "mldversion", .type
= BLOBMSG_TYPE_INT32
},
49 [DEV_ATTR_NEIGHREACHABLETIME
] = { .name
= "neighreachabletime", .type
= BLOBMSG_TYPE_INT32
},
50 [DEV_ATTR_NEIGHGCSTALETIME
] = { .name
= "neighgcstaletime", .type
= BLOBMSG_TYPE_INT32
},
51 [DEV_ATTR_DADTRANSMITS
] = { .name
= "dadtransmits", .type
= BLOBMSG_TYPE_INT32
},
52 [DEV_ATTR_MULTICAST_TO_UNICAST
] = { .name
= "multicast_to_unicast", .type
= BLOBMSG_TYPE_BOOL
},
53 [DEV_ATTR_MULTICAST_ROUTER
] = { .name
= "multicast_router", .type
= BLOBMSG_TYPE_INT32
},
54 [DEV_ATTR_MULTICAST_FAST_LEAVE
] = { .name
= "multicast_fast_leave", . type
= BLOBMSG_TYPE_BOOL
},
55 [DEV_ATTR_MULTICAST
] = { .name
="multicast", .type
= BLOBMSG_TYPE_BOOL
},
56 [DEV_ATTR_LEARNING
] = { .name
="learning", .type
= BLOBMSG_TYPE_BOOL
},
57 [DEV_ATTR_UNICAST_FLOOD
] = { .name
="unicast_flood", .type
= BLOBMSG_TYPE_BOOL
},
58 [DEV_ATTR_SENDREDIRECTS
] = { .name
= "sendredirects", .type
= BLOBMSG_TYPE_BOOL
},
59 [DEV_ATTR_NEIGHLOCKTIME
] = { .name
= "neighlocktime", .type
= BLOBMSG_TYPE_INT32
},
60 [DEV_ATTR_ISOLATE
] = { .name
= "isolate", .type
= BLOBMSG_TYPE_BOOL
},
63 const struct uci_blob_param_list device_attr_list
= {
64 .n_params
= __DEV_ATTR_MAX
,
68 static int __devlock
= 0;
70 int device_type_add(struct device_type
*devtype
)
72 if (device_type_get(devtype
->name
)) {
73 netifd_log_message(L_WARNING
, "Device handler '%s' already exists\n",
78 netifd_log_message(L_NOTICE
, "Added device handler type: %s\n",
81 list_add(&devtype
->list
, &devtypes
);
85 /* Retrieve the device type for the given name. If 'bridge' is true, the type
86 * must have bridge capabilities
89 device_type_get(const char *tname
)
91 struct device_type
*cur
;
93 list_for_each_entry(cur
, &devtypes
, list
)
94 if (!strcmp(cur
->name
, tname
))
100 void device_lock(void)
105 void device_unlock(void)
109 device_free_unused(NULL
);
112 void device_vlan_update(bool done
)
116 avl_for_each_element(&devices
, dev
, avl
) {
117 if (!dev
->vlans
.update
)
121 vlist_update(&dev
->vlans
);
123 vlist_flush(&dev
->vlans
);
127 static int set_device_state(struct device
*dev
, bool state
)
130 /* Get ifindex for all devices being enabled so a valid */
131 /* ifindex is in place avoiding possible race conditions */
132 device_set_ifindex(dev
, system_if_resolve(dev
));
145 simple_device_set_state(struct device
*dev
, bool state
)
150 pdev
= dev
->parent
.dev
;
151 if (state
&& !pdev
) {
152 pdev
= system_if_get_parent(dev
);
154 device_add_user(&dev
->parent
, pdev
);
159 ret
= device_claim(&dev
->parent
);
161 device_release(&dev
->parent
);
166 return set_device_state(dev
, state
);
169 static struct device
*
170 simple_device_create(const char *name
, struct device_type
*devtype
,
171 struct blob_attr
*attr
)
173 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
174 struct device
*dev
= NULL
;
176 /* device type is unused for simple devices */
179 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
, blob_data(attr
), blob_len(attr
));
180 dev
= device_get(name
, true);
184 dev
->set_state
= simple_device_set_state
;
185 device_init_settings(dev
, tb
);
190 static void simple_device_free(struct device
*dev
)
193 device_remove_user(&dev
->parent
);
197 struct device_type simple_device_type
= {
198 .name
= "Network device",
199 .config_params
= &device_attr_list
,
201 .create
= simple_device_create
,
202 .check_state
= system_if_check
,
203 .free
= simple_device_free
,
207 device_merge_settings(struct device
*dev
, struct device_settings
*n
)
209 struct device_settings
*os
= &dev
->orig_settings
;
210 struct device_settings
*s
= &dev
->settings
;
212 memset(n
, 0, sizeof(*n
));
213 n
->mtu
= s
->flags
& DEV_OPT_MTU
? s
->mtu
: os
->mtu
;
214 n
->mtu6
= s
->flags
& DEV_OPT_MTU6
? s
->mtu6
: os
->mtu6
;
215 n
->txqueuelen
= s
->flags
& DEV_OPT_TXQUEUELEN
?
216 s
->txqueuelen
: os
->txqueuelen
;
218 (s
->flags
& DEV_OPT_MACADDR
? s
->macaddr
: os
->macaddr
),
220 n
->ipv6
= s
->flags
& DEV_OPT_IPV6
? s
->ipv6
: os
->ipv6
;
221 n
->promisc
= s
->flags
& DEV_OPT_PROMISC
? s
->promisc
: os
->promisc
;
222 n
->rpfilter
= s
->flags
& DEV_OPT_RPFILTER
? s
->rpfilter
: os
->rpfilter
;
223 n
->acceptlocal
= s
->flags
& DEV_OPT_ACCEPTLOCAL
? s
->acceptlocal
: os
->acceptlocal
;
224 n
->igmpversion
= s
->flags
& DEV_OPT_IGMPVERSION
? s
->igmpversion
: os
->igmpversion
;
225 n
->mldversion
= s
->flags
& DEV_OPT_MLDVERSION
? s
->mldversion
: os
->mldversion
;
226 n
->neigh4reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
227 s
->neigh4reachabletime
: os
->neigh4reachabletime
;
228 n
->neigh6reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
229 s
->neigh6reachabletime
: os
->neigh6reachabletime
;
230 n
->neigh4gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
231 s
->neigh4gcstaletime
: os
->neigh4gcstaletime
;
232 n
->neigh6gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
233 s
->neigh6gcstaletime
: os
->neigh6gcstaletime
;
234 n
->neigh4locktime
= s
->flags
& DEV_OPT_NEIGHLOCKTIME
?
235 s
->neigh4locktime
: os
->neigh4locktime
;
236 n
->dadtransmits
= s
->flags
& DEV_OPT_DADTRANSMITS
?
237 s
->dadtransmits
: os
->dadtransmits
;
238 n
->multicast
= s
->flags
& DEV_OPT_MULTICAST
?
239 s
->multicast
: os
->multicast
;
240 n
->multicast_to_unicast
= s
->multicast_to_unicast
;
241 n
->multicast_router
= s
->multicast_router
;
242 n
->multicast_fast_leave
= s
->multicast_fast_leave
;
243 n
->learning
= s
->learning
;
244 n
->unicast_flood
= s
->unicast_flood
;
245 n
->sendredirects
= s
->flags
& DEV_OPT_SENDREDIRECTS
?
246 s
->sendredirects
: os
->sendredirects
;
247 n
->flags
= s
->flags
| os
->flags
| os
->valid_flags
;
251 device_init_settings(struct device
*dev
, struct blob_attr
**tb
)
253 struct device_settings
*s
= &dev
->settings
;
254 struct blob_attr
*cur
;
255 struct ether_addr
*ea
;
256 bool disabled
= false;
259 if ((cur
= tb
[DEV_ATTR_ENABLED
]))
260 disabled
= !blobmsg_get_bool(cur
);
262 if ((cur
= tb
[DEV_ATTR_MTU
]) && blobmsg_get_u32(cur
) >= 68) {
263 s
->mtu
= blobmsg_get_u32(cur
);
264 s
->flags
|= DEV_OPT_MTU
;
267 if ((cur
= tb
[DEV_ATTR_MTU6
]) && blobmsg_get_u32(cur
) >= 1280) {
268 s
->mtu6
= blobmsg_get_u32(cur
);
269 s
->flags
|= DEV_OPT_MTU6
;
272 if ((cur
= tb
[DEV_ATTR_TXQUEUELEN
])) {
273 s
->txqueuelen
= blobmsg_get_u32(cur
);
274 s
->flags
|= DEV_OPT_TXQUEUELEN
;
277 if ((cur
= tb
[DEV_ATTR_MACADDR
])) {
278 ea
= ether_aton(blobmsg_data(cur
));
280 memcpy(s
->macaddr
, ea
, 6);
281 s
->flags
|= DEV_OPT_MACADDR
;
285 if ((cur
= tb
[DEV_ATTR_IPV6
])) {
286 s
->ipv6
= blobmsg_get_bool(cur
);
287 s
->flags
|= DEV_OPT_IPV6
;
290 if ((cur
= tb
[DEV_ATTR_PROMISC
])) {
291 s
->promisc
= blobmsg_get_bool(cur
);
292 s
->flags
|= DEV_OPT_PROMISC
;
295 if ((cur
= tb
[DEV_ATTR_RPFILTER
])) {
296 if (system_resolve_rpfilter(blobmsg_data(cur
), &s
->rpfilter
))
297 s
->flags
|= DEV_OPT_RPFILTER
;
299 DPRINTF("Failed to resolve rpfilter: %s\n", (char *) blobmsg_data(cur
));
302 if ((cur
= tb
[DEV_ATTR_ACCEPTLOCAL
])) {
303 s
->acceptlocal
= blobmsg_get_bool(cur
);
304 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
307 if ((cur
= tb
[DEV_ATTR_IGMPVERSION
])) {
308 s
->igmpversion
= blobmsg_get_u32(cur
);
309 if (s
->igmpversion
>= 1 && s
->igmpversion
<= 3)
310 s
->flags
|= DEV_OPT_IGMPVERSION
;
312 DPRINTF("Failed to resolve igmpversion: %d\n", blobmsg_get_u32(cur
));
315 if ((cur
= tb
[DEV_ATTR_MLDVERSION
])) {
316 s
->mldversion
= blobmsg_get_u32(cur
);
317 if (s
->mldversion
>= 1 && s
->mldversion
<= 2)
318 s
->flags
|= DEV_OPT_MLDVERSION
;
320 DPRINTF("Failed to resolve mldversion: %d\n", blobmsg_get_u32(cur
));
323 if ((cur
= tb
[DEV_ATTR_NEIGHREACHABLETIME
])) {
324 s
->neigh6reachabletime
= s
->neigh4reachabletime
= blobmsg_get_u32(cur
);
325 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
328 if ((cur
= tb
[DEV_ATTR_NEIGHGCSTALETIME
])) {
329 s
->neigh6gcstaletime
= s
->neigh4gcstaletime
= blobmsg_get_u32(cur
);
330 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
333 if ((cur
= tb
[DEV_ATTR_NEIGHLOCKTIME
])) {
334 s
->neigh4locktime
= blobmsg_get_u32(cur
);
335 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
338 if ((cur
= tb
[DEV_ATTR_DADTRANSMITS
])) {
339 s
->dadtransmits
= blobmsg_get_u32(cur
);
340 s
->flags
|= DEV_OPT_DADTRANSMITS
;
343 if ((cur
= tb
[DEV_ATTR_MULTICAST_TO_UNICAST
])) {
344 s
->multicast_to_unicast
= blobmsg_get_bool(cur
);
345 s
->flags
|= DEV_OPT_MULTICAST_TO_UNICAST
;
348 if ((cur
= tb
[DEV_ATTR_MULTICAST_ROUTER
])) {
349 s
->multicast_router
= blobmsg_get_u32(cur
);
350 if (s
->multicast_router
<= 2)
351 s
->flags
|= DEV_OPT_MULTICAST_ROUTER
;
353 DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur
));
356 if ((cur
= tb
[DEV_ATTR_MULTICAST_FAST_LEAVE
])) {
357 s
->multicast_fast_leave
= blobmsg_get_bool(cur
);
358 s
->flags
|= DEV_OPT_MULTICAST_FAST_LEAVE
;
361 if ((cur
= tb
[DEV_ATTR_MULTICAST
])) {
362 s
->multicast
= blobmsg_get_bool(cur
);
363 s
->flags
|= DEV_OPT_MULTICAST
;
366 if ((cur
= tb
[DEV_ATTR_LEARNING
])) {
367 s
->learning
= blobmsg_get_bool(cur
);
368 s
->flags
|= DEV_OPT_LEARNING
;
371 if ((cur
= tb
[DEV_ATTR_UNICAST_FLOOD
])) {
372 s
->unicast_flood
= blobmsg_get_bool(cur
);
373 s
->flags
|= DEV_OPT_UNICAST_FLOOD
;
376 if ((cur
= tb
[DEV_ATTR_SENDREDIRECTS
])) {
377 s
->sendredirects
= blobmsg_get_bool(cur
);
378 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
381 if ((cur
= tb
[DEV_ATTR_ISOLATE
])) {
382 s
->isolate
= blobmsg_get_bool(cur
);
383 s
->flags
|= DEV_OPT_ISOLATE
;
386 device_set_disabled(dev
, disabled
);
389 static void __init
dev_init(void)
391 avl_init(&devices
, avl_strcmp
, true, NULL
);
394 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
396 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
399 /* device might have been removed by an earlier callback */
408 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
412 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
413 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
416 int device_claim(struct device_user
*dep
)
418 struct device
*dev
= dep
->dev
;
428 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
429 if (++dev
->active
!= 1)
432 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
434 /* Get ifindex for external claimed devices so a valid */
435 /* ifindex is in place avoiding possible race conditions */
436 device_set_ifindex(dev
, system_if_resolve(dev
));
440 system_if_get_settings(dev
, &dev
->orig_settings
);
442 ret
= dev
->set_state(dev
, true);
445 device_broadcast_event(dev
, DEV_EVENT_UP
);
447 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
449 dep
->claimed
= false;
455 void device_release(struct device_user
*dep
)
457 struct device
*dev
= dep
->dev
;
462 dep
->claimed
= false;
464 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
465 assert(dev
->active
>= 0);
470 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
472 dev
->set_state(dev
, false);
477 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
480 int device_check_state(struct device
*dev
)
482 if (!dev
->type
->check_state
)
483 return simple_device_type
.check_state(dev
);
485 return dev
->type
->check_state(dev
);
488 int device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
493 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
494 INIT_SAFE_LIST(&dev
->users
);
495 INIT_SAFE_LIST(&dev
->aliases
);
501 ret
= device_set_ifname(dev
, name
);
507 dev
->set_state
= set_device_state
;
512 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
516 ret
= device_init_virtual(dev
, type
, ifname
);
520 dev
->avl
.key
= dev
->ifname
;
522 ret
= avl_insert(&devices
, &dev
->avl
);
526 system_if_clear_state(dev
);
531 static struct device
*
532 device_create_default(const char *name
, bool external
)
536 if (!external
&& system_if_force_external(name
))
539 D(DEVICE
, "Create simple device '%s'\n", name
);
540 dev
= calloc(1, sizeof(*dev
));
544 dev
->external
= external
;
545 dev
->set_state
= simple_device_set_state
;
547 if (device_init(dev
, &simple_device_type
, name
) < 0) {
553 dev
->default_config
= true;
555 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
557 device_check_state(dev
);
563 device_find(const char *name
)
567 return avl_find_element(&devices
, name
, dev
, avl
);
571 device_get(const char *name
, int create
)
575 dev
= avl_find_element(&devices
, name
, dev
, avl
);
577 if (!dev
&& strchr(name
, '.'))
578 return get_vlan_device_chain(name
, create
);
581 return device_alias_get(name
+ 1);
584 if (create
> 1 && !dev
->external
) {
585 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
586 dev
->external
= true;
587 device_set_present(dev
, true);
595 return device_create_default(name
, create
> 1);
599 device_delete(struct device
*dev
)
604 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
605 avl_delete(&devices
, &dev
->avl
);
609 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
611 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
613 dep
->cb(dep
, DEV_EVENT_REMOVE
);
619 void device_cleanup(struct device
*dev
)
621 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
622 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
623 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
627 static void __device_set_present(struct device
*dev
, bool state
)
629 if (dev
->present
== state
)
632 dev
->present
= state
;
633 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
637 device_refresh_present(struct device
*dev
)
639 bool state
= dev
->sys_present
;
641 if (dev
->disabled
|| dev
->deferred
)
644 __device_set_present(dev
, state
);
647 void device_set_present(struct device
*dev
, bool state
)
649 if (dev
->sys_present
== state
)
652 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
653 dev
->sys_present
= state
;
654 device_refresh_present(dev
);
657 void device_set_link(struct device
*dev
, bool state
)
659 if (dev
->link_active
== state
)
662 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
664 dev
->link_active
= state
;
665 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
668 void device_set_ifindex(struct device
*dev
, int ifindex
)
670 if (dev
->ifindex
== ifindex
)
673 dev
->ifindex
= ifindex
;
674 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
677 int device_set_ifname(struct device
*dev
, const char *name
)
681 if (!strcmp(dev
->ifname
, name
))
684 if (strlen(name
) > sizeof(dev
->ifname
) - 1)
688 avl_delete(&devices
, &dev
->avl
);
690 strcpy(dev
->ifname
, name
);
693 ret
= avl_insert(&devices
, &dev
->avl
);
696 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
701 static int device_refcount(struct device
*dev
)
703 struct list_head
*list
;
706 list_for_each(list
, &dev
->users
.list
)
709 list_for_each(list
, &dev
->aliases
.list
)
716 __device_add_user(struct device_user
*dep
, struct device
*dev
)
718 struct safe_list
*head
;
723 head
= &dev
->aliases
;
727 safe_list_add(&dep
->list
, head
);
728 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
730 if (dep
->cb
&& dev
->present
) {
731 dep
->cb(dep
, DEV_EVENT_ADD
);
733 dep
->cb(dep
, DEV_EVENT_UP
);
735 if (dev
->link_active
)
736 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
740 void device_add_user(struct device_user
*dep
, struct device
*dev
)
746 device_remove_user(dep
);
751 __device_add_user(dep
, dev
);
755 device_free(struct device
*dev
)
760 dev
->type
->free(dev
);
765 __device_free_unused(struct device
*dev
)
767 if (!safe_list_empty(&dev
->users
) ||
768 !safe_list_empty(&dev
->aliases
) ||
769 dev
->current_config
|| __devlock
)
775 void device_remove_user(struct device_user
*dep
)
777 struct device
*dev
= dep
->dev
;
782 dep
->hotplug
= false;
786 safe_list_del(&dep
->list
);
788 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
789 __device_free_unused(dev
);
793 device_free_unused(struct device
*dev
)
798 return __device_free_unused(dev
);
800 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
)
801 __device_free_unused(dev
);
805 device_init_pending(void)
807 struct device
*dev
, *tmp
;
809 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
810 if (!dev
->config_pending
)
813 dev
->type
->config_init(dev
);
814 dev
->config_pending
= false;
815 device_check_state(dev
);
819 static enum dev_change_type
820 device_set_config(struct device
*dev
, struct device_type
*type
,
821 struct blob_attr
*attr
)
823 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
824 const struct uci_blob_param_list
*cfg
= type
->config_params
;
826 if (type
!= dev
->type
)
827 return DEV_CONFIG_RECREATE
;
829 if (dev
->type
->reload
)
830 return dev
->type
->reload(dev
, attr
);
832 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
833 return DEV_CONFIG_NO_CHANGE
;
835 if (cfg
== &device_attr_list
) {
836 memset(tb
, 0, sizeof(tb
));
839 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
840 blob_data(attr
), blob_len(attr
));
842 device_init_settings(dev
, tb
);
843 return DEV_CONFIG_RESTART
;
845 return DEV_CONFIG_RECREATE
;
849 device_apply_config(struct device
*dev
, struct device_type
*type
,
850 struct blob_attr
*config
)
852 enum dev_change_type change
;
854 change
= device_set_config(dev
, type
, config
);
856 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
857 change
= DEV_CONFIG_APPLIED
;
861 case DEV_CONFIG_RESTART
:
862 case DEV_CONFIG_APPLIED
:
863 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
864 config
= blob_memdup(config
);
866 dev
->config
= config
;
867 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
870 device_set_present(dev
, false);
871 if (dev
->active
&& !dev
->external
) {
872 ret
= dev
->set_state(dev
, false);
874 ret
= dev
->set_state(dev
, true);
877 device_set_present(dev
, true);
880 case DEV_CONFIG_NO_CHANGE
:
881 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
883 case DEV_CONFIG_RECREATE
:
891 device_replace(struct device
*dev
, struct device
*odev
)
893 struct device_user
*dep
, *tmp
;
897 device_set_present(odev
, false);
899 list_for_each_entry_safe(dep
, tmp
, &odev
->users
.list
, list
.list
) {
901 safe_list_del(&dep
->list
);
902 __device_add_user(dep
, dev
);
910 device_reset_config(void)
914 avl_for_each_element(&devices
, dev
, avl
)
915 dev
->current_config
= false;
919 device_reset_old(void)
921 struct device
*dev
, *tmp
, *ndev
;
923 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
924 if (dev
->current_config
|| dev
->default_config
)
927 if (dev
->type
!= &simple_device_type
)
930 ndev
= device_create_default(dev
->ifname
, dev
->external
);
934 device_replace(ndev
, dev
);
939 device_create(const char *name
, struct device_type
*type
,
940 struct blob_attr
*config
)
942 struct device
*odev
= NULL
, *dev
;
943 enum dev_change_type change
;
945 odev
= device_find(name
);
947 odev
->current_config
= true;
948 change
= device_apply_config(odev
, type
, config
);
950 case DEV_CONFIG_RECREATE
:
951 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
958 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
960 config
= blob_memdup(config
);
964 dev
= type
->create(name
, type
, config
);
968 dev
->current_config
= true;
969 dev
->config
= config
;
971 device_replace(dev
, odev
);
973 if (!config_init
&& dev
->config_pending
) {
974 type
->config_init(dev
);
975 dev
->config_pending
= false;
978 device_check_state(dev
);
984 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
986 struct device_settings st
;
990 avl_for_each_element(&devices
, dev
, avl
) {
993 c
= blobmsg_open_table(b
, dev
->ifname
);
994 device_dump_status(b
, dev
);
995 blobmsg_close_table(b
, c
);
1001 blobmsg_add_u8(b
, "external", dev
->external
);
1002 blobmsg_add_u8(b
, "present", dev
->present
);
1003 blobmsg_add_string(b
, "type", dev
->type
->name
);
1008 blobmsg_add_u8(b
, "up", !!dev
->active
);
1009 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1011 if (dev
->type
->dump_info
)
1012 dev
->type
->dump_info(dev
, b
);
1014 system_if_dump_info(dev
, b
);
1017 device_merge_settings(dev
, &st
);
1018 if (st
.flags
& DEV_OPT_MTU
)
1019 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1020 if (st
.flags
& DEV_OPT_MTU6
)
1021 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1022 if (st
.flags
& DEV_OPT_MACADDR
)
1023 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1024 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1025 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1026 if (st
.flags
& DEV_OPT_IPV6
)
1027 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1028 if (st
.flags
& DEV_OPT_PROMISC
)
1029 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1030 if (st
.flags
& DEV_OPT_RPFILTER
)
1031 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1032 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1033 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1034 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1035 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1036 if (st
.flags
& DEV_OPT_MLDVERSION
)
1037 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1038 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1039 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1040 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1042 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1043 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1044 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1046 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1047 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1048 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1049 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1050 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1051 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1052 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1053 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1054 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1055 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1056 if (st
.flags
& DEV_OPT_MULTICAST
)
1057 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1058 if (st
.flags
& DEV_OPT_LEARNING
)
1059 blobmsg_add_u8(b
, "learning", st
.learning
);
1060 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1061 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1062 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1063 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1066 s
= blobmsg_open_table(b
, "statistics");
1067 if (dev
->type
->dump_stats
)
1068 dev
->type
->dump_stats(dev
, b
);
1070 system_if_dump_stats(dev
, b
);
1071 blobmsg_close_table(b
, s
);
1074 static void __init
simple_device_type_init(void)
1076 device_type_add(&simple_device_type
);