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
;
35 static bool default_ps
= true;
37 static const struct blobmsg_policy dev_attrs
[__DEV_ATTR_MAX
] = {
38 [DEV_ATTR_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
39 [DEV_ATTR_MTU
] = { .name
= "mtu", .type
= BLOBMSG_TYPE_INT32
},
40 [DEV_ATTR_MTU6
] = { .name
= "mtu6", .type
= BLOBMSG_TYPE_INT32
},
41 [DEV_ATTR_MACADDR
] = { .name
= "macaddr", .type
= BLOBMSG_TYPE_STRING
},
42 [DEV_ATTR_TXQUEUELEN
] = { .name
= "txqueuelen", .type
= BLOBMSG_TYPE_INT32
},
43 [DEV_ATTR_ENABLED
] = { .name
= "enabled", .type
= BLOBMSG_TYPE_BOOL
},
44 [DEV_ATTR_IPV6
] = { .name
= "ipv6", .type
= BLOBMSG_TYPE_BOOL
},
45 [DEV_ATTR_PROMISC
] = { .name
= "promisc", .type
= BLOBMSG_TYPE_BOOL
},
46 [DEV_ATTR_RPFILTER
] = { .name
= "rpfilter", .type
= BLOBMSG_TYPE_STRING
},
47 [DEV_ATTR_ACCEPTLOCAL
] = { .name
= "acceptlocal", .type
= BLOBMSG_TYPE_BOOL
},
48 [DEV_ATTR_IGMPVERSION
] = { .name
= "igmpversion", .type
= BLOBMSG_TYPE_INT32
},
49 [DEV_ATTR_MLDVERSION
] = { .name
= "mldversion", .type
= BLOBMSG_TYPE_INT32
},
50 [DEV_ATTR_NEIGHREACHABLETIME
] = { .name
= "neighreachabletime", .type
= BLOBMSG_TYPE_INT32
},
51 [DEV_ATTR_NEIGHGCSTALETIME
] = { .name
= "neighgcstaletime", .type
= BLOBMSG_TYPE_INT32
},
52 [DEV_ATTR_RPS
] = { .name
= "rps", .type
= BLOBMSG_TYPE_BOOL
},
53 [DEV_ATTR_XPS
] = { .name
= "xps", .type
= BLOBMSG_TYPE_BOOL
},
54 [DEV_ATTR_DADTRANSMITS
] = { .name
= "dadtransmits", .type
= BLOBMSG_TYPE_INT32
},
55 [DEV_ATTR_MULTICAST_TO_UNICAST
] = { .name
= "multicast_to_unicast", .type
= BLOBMSG_TYPE_BOOL
},
56 [DEV_ATTR_MULTICAST_ROUTER
] = { .name
= "multicast_router", .type
= BLOBMSG_TYPE_INT32
},
57 [DEV_ATTR_MULTICAST_FAST_LEAVE
] = { .name
= "multicast_fast_leave", . type
= BLOBMSG_TYPE_BOOL
},
58 [DEV_ATTR_MULTICAST
] = { .name
="multicast", .type
= BLOBMSG_TYPE_BOOL
},
59 [DEV_ATTR_LEARNING
] = { .name
="learning", .type
= BLOBMSG_TYPE_BOOL
},
60 [DEV_ATTR_UNICAST_FLOOD
] = { .name
="unicast_flood", .type
= BLOBMSG_TYPE_BOOL
},
61 [DEV_ATTR_SENDREDIRECTS
] = { .name
= "sendredirects", .type
= BLOBMSG_TYPE_BOOL
},
62 [DEV_ATTR_NEIGHLOCKTIME
] = { .name
= "neighlocktime", .type
= BLOBMSG_TYPE_INT32
},
65 const struct uci_blob_param_list device_attr_list
= {
66 .n_params
= __DEV_ATTR_MAX
,
70 static int __devlock
= 0;
72 int device_type_add(struct device_type
*devtype
)
74 if (device_type_get(devtype
->name
)) {
75 netifd_log_message(L_WARNING
, "Device handler '%s' already exists\n",
80 netifd_log_message(L_NOTICE
, "Added device handler type: %s\n",
83 list_add(&devtype
->list
, &devtypes
);
87 /* Retrieve the device type for the given name. If 'bridge' is true, the type
88 * must have bridge capabilities
91 device_type_get(const char *tname
)
93 struct device_type
*cur
;
95 list_for_each_entry(cur
, &devtypes
, list
)
96 if (!strcmp(cur
->name
, tname
))
102 void device_lock(void)
107 void device_unlock(void)
111 device_free_unused(NULL
);
114 static int set_device_state(struct device
*dev
, bool state
)
117 /* Get ifindex for all devices being enabled so a valid */
118 /* ifindex is in place avoiding possible race conditions */
119 device_set_ifindex(dev
, system_if_resolve(dev
));
132 simple_device_set_state(struct device
*dev
, bool state
)
137 pdev
= dev
->parent
.dev
;
138 if (state
&& !pdev
) {
139 pdev
= system_if_get_parent(dev
);
141 device_add_user(&dev
->parent
, pdev
);
146 ret
= device_claim(&dev
->parent
);
148 device_release(&dev
->parent
);
153 return set_device_state(dev
, state
);
156 static struct device
*
157 simple_device_create(const char *name
, struct device_type
*devtype
,
158 struct blob_attr
*attr
)
160 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
161 struct device
*dev
= NULL
;
163 /* device type is unused for simple devices */
166 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
, blob_data(attr
), blob_len(attr
));
167 dev
= device_get(name
, true);
171 dev
->set_state
= simple_device_set_state
;
172 device_init_settings(dev
, tb
);
177 static void simple_device_free(struct device
*dev
)
180 device_remove_user(&dev
->parent
);
184 struct device_type simple_device_type
= {
185 .name
= "Network device",
186 .config_params
= &device_attr_list
,
188 .create
= simple_device_create
,
189 .check_state
= system_if_check
,
190 .free
= simple_device_free
,
194 device_merge_settings(struct device
*dev
, struct device_settings
*n
)
196 struct device_settings
*os
= &dev
->orig_settings
;
197 struct device_settings
*s
= &dev
->settings
;
199 memset(n
, 0, sizeof(*n
));
200 n
->mtu
= s
->flags
& DEV_OPT_MTU
? s
->mtu
: os
->mtu
;
201 n
->mtu6
= s
->flags
& DEV_OPT_MTU6
? s
->mtu6
: os
->mtu6
;
202 n
->txqueuelen
= s
->flags
& DEV_OPT_TXQUEUELEN
?
203 s
->txqueuelen
: os
->txqueuelen
;
205 (s
->flags
& DEV_OPT_MACADDR
? s
->macaddr
: os
->macaddr
),
207 n
->ipv6
= s
->flags
& DEV_OPT_IPV6
? s
->ipv6
: os
->ipv6
;
208 n
->promisc
= s
->flags
& DEV_OPT_PROMISC
? s
->promisc
: os
->promisc
;
209 n
->rpfilter
= s
->flags
& DEV_OPT_RPFILTER
? s
->rpfilter
: os
->rpfilter
;
210 n
->acceptlocal
= s
->flags
& DEV_OPT_ACCEPTLOCAL
? s
->acceptlocal
: os
->acceptlocal
;
211 n
->igmpversion
= s
->flags
& DEV_OPT_IGMPVERSION
? s
->igmpversion
: os
->igmpversion
;
212 n
->mldversion
= s
->flags
& DEV_OPT_MLDVERSION
? s
->mldversion
: os
->mldversion
;
213 n
->neigh4reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
214 s
->neigh4reachabletime
: os
->neigh4reachabletime
;
215 n
->neigh6reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
216 s
->neigh6reachabletime
: os
->neigh6reachabletime
;
217 n
->neigh4gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
218 s
->neigh4gcstaletime
: os
->neigh4gcstaletime
;
219 n
->neigh6gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
220 s
->neigh6gcstaletime
: os
->neigh6gcstaletime
;
221 n
->neigh4locktime
= s
->flags
& DEV_OPT_NEIGHLOCKTIME
?
222 s
->neigh4locktime
: os
->neigh4locktime
;
223 n
->dadtransmits
= s
->flags
& DEV_OPT_DADTRANSMITS
?
224 s
->dadtransmits
: os
->dadtransmits
;
225 n
->multicast
= s
->flags
& DEV_OPT_MULTICAST
?
226 s
->multicast
: os
->multicast
;
227 n
->multicast_to_unicast
= s
->multicast_to_unicast
;
228 n
->multicast_router
= s
->multicast_router
;
229 n
->multicast_fast_leave
= s
->multicast_fast_leave
;
230 n
->learning
= s
->learning
;
231 n
->unicast_flood
= s
->unicast_flood
;
232 n
->sendredirects
= s
->flags
& DEV_OPT_SENDREDIRECTS
?
233 s
->sendredirects
: os
->sendredirects
;
234 n
->flags
= s
->flags
| os
->flags
| os
->valid_flags
;
238 device_init_settings(struct device
*dev
, struct blob_attr
**tb
)
240 struct device_settings
*s
= &dev
->settings
;
241 struct blob_attr
*cur
;
242 struct ether_addr
*ea
;
243 bool disabled
= false;
246 if ((cur
= tb
[DEV_ATTR_ENABLED
]))
247 disabled
= !blobmsg_get_bool(cur
);
249 if ((cur
= tb
[DEV_ATTR_MTU
]) && blobmsg_get_u32(cur
) >= 68) {
250 s
->mtu
= blobmsg_get_u32(cur
);
251 s
->flags
|= DEV_OPT_MTU
;
254 if ((cur
= tb
[DEV_ATTR_MTU6
]) && blobmsg_get_u32(cur
) >= 1280) {
255 s
->mtu6
= blobmsg_get_u32(cur
);
256 s
->flags
|= DEV_OPT_MTU6
;
259 if ((cur
= tb
[DEV_ATTR_TXQUEUELEN
])) {
260 s
->txqueuelen
= blobmsg_get_u32(cur
);
261 s
->flags
|= DEV_OPT_TXQUEUELEN
;
264 if ((cur
= tb
[DEV_ATTR_MACADDR
])) {
265 ea
= ether_aton(blobmsg_data(cur
));
267 memcpy(s
->macaddr
, ea
, 6);
268 s
->flags
|= DEV_OPT_MACADDR
;
272 if ((cur
= tb
[DEV_ATTR_IPV6
])) {
273 s
->ipv6
= blobmsg_get_bool(cur
);
274 s
->flags
|= DEV_OPT_IPV6
;
277 if ((cur
= tb
[DEV_ATTR_PROMISC
])) {
278 s
->promisc
= blobmsg_get_bool(cur
);
279 s
->flags
|= DEV_OPT_PROMISC
;
282 if ((cur
= tb
[DEV_ATTR_RPFILTER
])) {
283 if (system_resolve_rpfilter(blobmsg_data(cur
), &s
->rpfilter
))
284 s
->flags
|= DEV_OPT_RPFILTER
;
286 DPRINTF("Failed to resolve rpfilter: %s\n", (char *) blobmsg_data(cur
));
289 if ((cur
= tb
[DEV_ATTR_ACCEPTLOCAL
])) {
290 s
->acceptlocal
= blobmsg_get_bool(cur
);
291 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
294 if ((cur
= tb
[DEV_ATTR_IGMPVERSION
])) {
295 s
->igmpversion
= blobmsg_get_u32(cur
);
296 if (s
->igmpversion
>= 1 && s
->igmpversion
<= 3)
297 s
->flags
|= DEV_OPT_IGMPVERSION
;
299 DPRINTF("Failed to resolve igmpversion: %d\n", blobmsg_get_u32(cur
));
302 if ((cur
= tb
[DEV_ATTR_MLDVERSION
])) {
303 s
->mldversion
= blobmsg_get_u32(cur
);
304 if (s
->mldversion
>= 1 && s
->mldversion
<= 2)
305 s
->flags
|= DEV_OPT_MLDVERSION
;
307 DPRINTF("Failed to resolve mldversion: %d\n", blobmsg_get_u32(cur
));
310 if ((cur
= tb
[DEV_ATTR_NEIGHREACHABLETIME
])) {
311 s
->neigh6reachabletime
= s
->neigh4reachabletime
= blobmsg_get_u32(cur
);
312 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
315 if ((cur
= tb
[DEV_ATTR_NEIGHGCSTALETIME
])) {
316 s
->neigh6gcstaletime
= s
->neigh4gcstaletime
= blobmsg_get_u32(cur
);
317 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
320 if ((cur
= tb
[DEV_ATTR_NEIGHLOCKTIME
])) {
321 s
->neigh4locktime
= blobmsg_get_u32(cur
);
322 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
325 if ((cur
= tb
[DEV_ATTR_RPS
])) {
326 s
->rps
= blobmsg_get_bool(cur
);
327 s
->flags
|= DEV_OPT_RPS
;
332 if ((cur
= tb
[DEV_ATTR_XPS
])) {
333 s
->xps
= blobmsg_get_bool(cur
);
334 s
->flags
|= DEV_OPT_XPS
;
339 if ((cur
= tb
[DEV_ATTR_DADTRANSMITS
])) {
340 s
->dadtransmits
= blobmsg_get_u32(cur
);
341 s
->flags
|= DEV_OPT_DADTRANSMITS
;
344 if ((cur
= tb
[DEV_ATTR_MULTICAST_TO_UNICAST
])) {
345 s
->multicast_to_unicast
= blobmsg_get_bool(cur
);
346 s
->flags
|= DEV_OPT_MULTICAST_TO_UNICAST
;
349 if ((cur
= tb
[DEV_ATTR_MULTICAST_ROUTER
])) {
350 s
->multicast_router
= blobmsg_get_u32(cur
);
351 if (s
->multicast_router
<= 2)
352 s
->flags
|= DEV_OPT_MULTICAST_ROUTER
;
354 DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur
));
357 if ((cur
= tb
[DEV_ATTR_MULTICAST_FAST_LEAVE
])) {
358 s
->multicast_fast_leave
= blobmsg_get_bool(cur
);
359 s
->flags
|= DEV_OPT_MULTICAST_FAST_LEAVE
;
362 if ((cur
= tb
[DEV_ATTR_MULTICAST
])) {
363 s
->multicast
= blobmsg_get_bool(cur
);
364 s
->flags
|= DEV_OPT_MULTICAST
;
367 if ((cur
= tb
[DEV_ATTR_LEARNING
])) {
368 s
->learning
= blobmsg_get_bool(cur
);
369 s
->flags
|= DEV_OPT_LEARNING
;
372 if ((cur
= tb
[DEV_ATTR_UNICAST_FLOOD
])) {
373 s
->unicast_flood
= blobmsg_get_bool(cur
);
374 s
->flags
|= DEV_OPT_UNICAST_FLOOD
;
377 if ((cur
= tb
[DEV_ATTR_SENDREDIRECTS
])) {
378 s
->sendredirects
= blobmsg_get_bool(cur
);
379 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
382 device_set_disabled(dev
, disabled
);
385 static void __init
dev_init(void)
387 avl_init(&devices
, avl_strcmp
, true, NULL
);
390 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
392 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
395 /* device might have been removed by an earlier callback */
404 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
408 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
409 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
412 int device_claim(struct device_user
*dep
)
414 struct device
*dev
= dep
->dev
;
424 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
425 if (++dev
->active
!= 1)
428 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
430 /* Get ifindex for external claimed devices so a valid */
431 /* ifindex is in place avoiding possible race conditions */
432 device_set_ifindex(dev
, system_if_resolve(dev
));
436 system_if_get_settings(dev
, &dev
->orig_settings
);
438 ret
= dev
->set_state(dev
, true);
441 device_broadcast_event(dev
, DEV_EVENT_UP
);
443 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
445 dep
->claimed
= false;
451 void device_release(struct device_user
*dep
)
453 struct device
*dev
= dep
->dev
;
458 dep
->claimed
= false;
460 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
461 assert(dev
->active
>= 0);
466 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
468 dev
->set_state(dev
, false);
473 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
476 int device_check_state(struct device
*dev
)
478 if (!dev
->type
->check_state
)
479 return simple_device_type
.check_state(dev
);
481 return dev
->type
->check_state(dev
);
484 void device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
489 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
490 INIT_SAFE_LIST(&dev
->users
);
491 INIT_SAFE_LIST(&dev
->aliases
);
495 device_set_ifname(dev
, name
);
498 dev
->set_state
= set_device_state
;
501 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
505 device_init_virtual(dev
, type
, ifname
);
507 dev
->avl
.key
= dev
->ifname
;
509 ret
= avl_insert(&devices
, &dev
->avl
);
513 system_if_clear_state(dev
);
514 device_check_state(dev
);
515 dev
->settings
.rps
= default_ps
;
516 dev
->settings
.xps
= default_ps
;
521 static struct device
*
522 device_create_default(const char *name
, bool external
)
526 if (!external
&& system_if_force_external(name
))
529 D(DEVICE
, "Create simple device '%s'\n", name
);
530 dev
= calloc(1, sizeof(*dev
));
534 dev
->external
= external
;
535 dev
->set_state
= simple_device_set_state
;
536 device_init(dev
, &simple_device_type
, name
);
537 dev
->default_config
= true;
539 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
544 device_find(const char *name
)
548 return avl_find_element(&devices
, name
, dev
, avl
);
552 device_get(const char *name
, int create
)
556 if (strchr(name
, '.'))
557 return get_vlan_device_chain(name
, create
);
560 return device_alias_get(name
+ 1);
562 dev
= avl_find_element(&devices
, name
, dev
, avl
);
564 if (create
> 1 && !dev
->external
) {
565 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
566 dev
->external
= true;
567 device_set_present(dev
, true);
575 return device_create_default(name
, create
> 1);
579 device_delete(struct device
*dev
)
584 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
585 avl_delete(&devices
, &dev
->avl
);
589 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
591 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
593 dep
->cb(dep
, DEV_EVENT_REMOVE
);
599 void device_cleanup(struct device
*dev
)
601 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
602 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
603 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
607 static void __device_set_present(struct device
*dev
, bool state
)
609 if (dev
->present
== state
)
612 dev
->present
= state
;
613 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
617 device_refresh_present(struct device
*dev
)
619 bool state
= dev
->sys_present
;
621 if (dev
->disabled
|| dev
->deferred
)
624 __device_set_present(dev
, state
);
627 void device_set_present(struct device
*dev
, bool state
)
629 if (dev
->sys_present
== state
)
632 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
633 dev
->sys_present
= state
;
634 device_refresh_present(dev
);
637 void device_set_link(struct device
*dev
, bool state
)
639 if (dev
->link_active
== state
)
642 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
644 dev
->link_active
= state
;
645 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
648 void device_set_ifindex(struct device
*dev
, int ifindex
)
650 if (dev
->ifindex
== ifindex
)
653 dev
->ifindex
= ifindex
;
654 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
657 int device_set_ifname(struct device
*dev
, const char *name
)
661 if (!strcmp(dev
->ifname
, name
))
665 avl_delete(&devices
, &dev
->avl
);
667 strncpy(dev
->ifname
, name
, IFNAMSIZ
);
670 ret
= avl_insert(&devices
, &dev
->avl
);
673 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
678 static int device_refcount(struct device
*dev
)
680 struct list_head
*list
;
683 list_for_each(list
, &dev
->users
.list
)
686 list_for_each(list
, &dev
->aliases
.list
)
693 __device_add_user(struct device_user
*dep
, struct device
*dev
)
695 struct safe_list
*head
;
700 head
= &dev
->aliases
;
704 safe_list_add(&dep
->list
, head
);
705 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
707 if (dep
->cb
&& dev
->present
) {
708 dep
->cb(dep
, DEV_EVENT_ADD
);
710 dep
->cb(dep
, DEV_EVENT_UP
);
712 if (dev
->link_active
)
713 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
717 void device_add_user(struct device_user
*dep
, struct device
*dev
)
723 device_remove_user(dep
);
728 __device_add_user(dep
, dev
);
732 device_free(struct device
*dev
)
737 dev
->type
->free(dev
);
742 __device_free_unused(struct device
*dev
)
744 if (!safe_list_empty(&dev
->users
) ||
745 !safe_list_empty(&dev
->aliases
) ||
746 dev
->current_config
|| __devlock
)
752 void device_remove_user(struct device_user
*dep
)
754 struct device
*dev
= dep
->dev
;
759 dep
->hotplug
= false;
763 safe_list_del(&dep
->list
);
765 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
766 __device_free_unused(dev
);
770 device_free_unused(struct device
*dev
)
775 return __device_free_unused(dev
);
777 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
)
778 __device_free_unused(dev
);
782 device_init_pending(void)
784 struct device
*dev
, *tmp
;
786 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
787 if (!dev
->config_pending
)
790 dev
->type
->config_init(dev
);
791 dev
->config_pending
= false;
795 static enum dev_change_type
796 device_set_config(struct device
*dev
, struct device_type
*type
,
797 struct blob_attr
*attr
)
799 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
800 const struct uci_blob_param_list
*cfg
= type
->config_params
;
802 if (type
!= dev
->type
)
803 return DEV_CONFIG_RECREATE
;
805 if (dev
->type
->reload
)
806 return dev
->type
->reload(dev
, attr
);
808 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
809 return DEV_CONFIG_NO_CHANGE
;
811 if (cfg
== &device_attr_list
) {
812 memset(tb
, 0, sizeof(tb
));
815 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
816 blob_data(attr
), blob_len(attr
));
818 device_init_settings(dev
, tb
);
819 return DEV_CONFIG_RESTART
;
821 return DEV_CONFIG_RECREATE
;
825 device_apply_config(struct device
*dev
, struct device_type
*type
,
826 struct blob_attr
*config
)
828 enum dev_change_type change
;
830 change
= device_set_config(dev
, type
, config
);
832 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
833 change
= DEV_CONFIG_APPLIED
;
837 case DEV_CONFIG_RESTART
:
838 case DEV_CONFIG_APPLIED
:
839 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
840 config
= blob_memdup(config
);
842 dev
->config
= config
;
843 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
846 device_set_present(dev
, false);
847 if (dev
->active
&& !dev
->external
) {
848 ret
= dev
->set_state(dev
, false);
850 ret
= dev
->set_state(dev
, true);
853 device_set_present(dev
, true);
856 case DEV_CONFIG_NO_CHANGE
:
857 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
859 case DEV_CONFIG_RECREATE
:
867 device_replace(struct device
*dev
, struct device
*odev
)
869 struct device_user
*dep
, *tmp
;
873 device_set_present(odev
, false);
875 list_for_each_entry_safe(dep
, tmp
, &odev
->users
.list
, list
.list
) {
877 safe_list_del(&dep
->list
);
878 __device_add_user(dep
, dev
);
886 device_reset_config(void)
890 avl_for_each_element(&devices
, dev
, avl
)
891 dev
->current_config
= false;
895 device_reset_old(void)
897 struct device
*dev
, *tmp
, *ndev
;
899 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
900 if (dev
->current_config
|| dev
->default_config
)
903 if (dev
->type
!= &simple_device_type
)
906 ndev
= device_create_default(dev
->ifname
, dev
->external
);
910 device_replace(ndev
, dev
);
915 device_set_default_ps(bool state
)
919 if (state
== default_ps
)
924 avl_for_each_element(&devices
, dev
, avl
) {
925 struct device_settings
*s
= &dev
->settings
;
926 unsigned int apply_mask
= 0;
928 if (!(s
->flags
& DEV_OPT_RPS
)) {
930 apply_mask
|= DEV_OPT_RPS
;
933 if (!(s
->flags
& DEV_OPT_XPS
)) {
935 apply_mask
|= DEV_OPT_XPS
;
941 if (!(dev
->external
|| (dev
->present
&& dev
->active
)) ||
945 system_if_apply_settings(dev
, s
, apply_mask
);
950 device_create(const char *name
, struct device_type
*type
,
951 struct blob_attr
*config
)
953 struct device
*odev
= NULL
, *dev
;
954 enum dev_change_type change
;
956 odev
= device_find(name
);
958 odev
->current_config
= true;
959 change
= device_apply_config(odev
, type
, config
);
961 case DEV_CONFIG_RECREATE
:
962 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
969 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
971 config
= blob_memdup(config
);
975 dev
= type
->create(name
, type
, config
);
979 dev
->current_config
= true;
980 dev
->config
= config
;
982 device_replace(dev
, odev
);
984 if (!config_init
&& dev
->config_pending
) {
985 type
->config_init(dev
);
986 dev
->config_pending
= false;
993 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
995 struct device_settings st
;
999 avl_for_each_element(&devices
, dev
, avl
) {
1002 c
= blobmsg_open_table(b
, dev
->ifname
);
1003 device_dump_status(b
, dev
);
1004 blobmsg_close_table(b
, c
);
1010 blobmsg_add_u8(b
, "external", dev
->external
);
1011 blobmsg_add_u8(b
, "present", dev
->present
);
1012 blobmsg_add_string(b
, "type", dev
->type
->name
);
1017 blobmsg_add_u8(b
, "up", !!dev
->active
);
1018 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1020 if (dev
->type
->dump_info
)
1021 dev
->type
->dump_info(dev
, b
);
1023 system_if_dump_info(dev
, b
);
1026 device_merge_settings(dev
, &st
);
1027 if (st
.flags
& DEV_OPT_MTU
)
1028 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1029 if (st
.flags
& DEV_OPT_MTU6
)
1030 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1031 if (st
.flags
& DEV_OPT_MACADDR
)
1032 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1033 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1034 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1035 if (st
.flags
& DEV_OPT_IPV6
)
1036 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1037 if (st
.flags
& DEV_OPT_PROMISC
)
1038 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1039 if (st
.flags
& DEV_OPT_RPFILTER
)
1040 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1041 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1042 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1043 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1044 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1045 if (st
.flags
& DEV_OPT_MLDVERSION
)
1046 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1047 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1048 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1049 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1051 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1052 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1053 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1055 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1056 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1057 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1058 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1059 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1060 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1061 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1062 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1063 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1064 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1065 if (st
.flags
& DEV_OPT_MULTICAST
)
1066 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1067 if (st
.flags
& DEV_OPT_LEARNING
)
1068 blobmsg_add_u8(b
, "learning", st
.learning
);
1069 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1070 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1071 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1072 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1075 s
= blobmsg_open_table(b
, "statistics");
1076 if (dev
->type
->dump_stats
)
1077 dev
->type
->dump_stats(dev
, b
);
1079 system_if_dump_stats(dev
, b
);
1080 blobmsg_close_table(b
, s
);
1083 static void __init
simple_device_type_init(void)
1085 device_type_add(&simple_device_type
);