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
},
57 [DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST
] = { .name
= "drop_v4_unicast_in_l2_multicast", .type
= BLOBMSG_TYPE_BOOL
},
58 [DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST
] = { .name
= "drop_v6_unicast_in_l2_multicast", .type
= BLOBMSG_TYPE_BOOL
},
59 [DEV_ATTR_DROP_GRATUITOUS_ARP
] = { .name
= "drop_gratuitous_arp", .type
= BLOBMSG_TYPE_BOOL
},
60 [DEV_ATTR_DROP_UNSOLICITED_NA
] = { .name
= "drop_unsolicited_na", .type
= BLOBMSG_TYPE_BOOL
},
61 [DEV_ATTR_ARP_ACCEPT
] = { .name
= "arp_accept", .type
= BLOBMSG_TYPE_BOOL
},
62 [DEV_ATTR_AUTH
] = { .name
= "auth", .type
= BLOBMSG_TYPE_BOOL
},
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
);
88 device_type_get(const char *tname
)
90 struct device_type
*cur
;
92 list_for_each_entry(cur
, &devtypes
, list
)
93 if (!strcmp(cur
->name
, tname
))
99 void device_lock(void)
104 void device_unlock(void)
108 device_free_unused(NULL
);
111 static int device_vlan_len(struct kvlist
*kv
, const void *data
)
113 return sizeof(unsigned int);
116 void device_vlan_update(bool done
)
120 avl_for_each_element(&devices
, dev
, avl
) {
121 if (!dev
->vlans
.update
)
125 if (dev
->vlan_aliases
.get_len
)
126 kvlist_free(&dev
->vlan_aliases
);
128 kvlist_init(&dev
->vlan_aliases
, device_vlan_len
);
129 vlist_update(&dev
->vlans
);
131 vlist_flush(&dev
->vlans
);
133 if (dev
->type
->vlan_update
)
134 dev
->type
->vlan_update(dev
);
139 static int set_device_state(struct device
*dev
, bool state
)
142 /* Get ifindex for all devices being enabled so a valid */
143 /* ifindex is in place avoiding possible race conditions */
144 device_set_ifindex(dev
, system_if_resolve(dev
));
148 system_if_get_settings(dev
, &dev
->orig_settings
);
149 /* Only keep orig settings based on what needs to be set */
150 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
151 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
152 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
157 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
164 simple_device_set_state(struct device
*dev
, bool state
)
169 pdev
= dev
->parent
.dev
;
170 if (state
&& !pdev
) {
171 pdev
= system_if_get_parent(dev
);
173 device_add_user(&dev
->parent
, pdev
);
178 ret
= device_claim(&dev
->parent
);
180 device_release(&dev
->parent
);
185 return set_device_state(dev
, state
);
188 static struct device
*
189 simple_device_create(const char *name
, struct device_type
*devtype
,
190 struct blob_attr
*attr
)
192 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
193 struct device
*dev
= NULL
;
195 /* device type is unused for simple devices */
198 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
, blob_data(attr
), blob_len(attr
));
199 dev
= device_get(name
, true);
203 dev
->set_state
= simple_device_set_state
;
204 device_init_settings(dev
, tb
);
209 static void simple_device_free(struct device
*dev
)
212 device_remove_user(&dev
->parent
);
216 struct device_type simple_device_type
= {
217 .name
= "Network device",
218 .config_params
= &device_attr_list
,
220 .create
= simple_device_create
,
221 .check_state
= system_if_check
,
222 .free
= simple_device_free
,
226 device_merge_settings(struct device
*dev
, struct device_settings
*n
)
228 struct device_settings
*os
= &dev
->orig_settings
;
229 struct device_settings
*s
= &dev
->settings
;
231 memset(n
, 0, sizeof(*n
));
232 n
->mtu
= s
->flags
& DEV_OPT_MTU
? s
->mtu
: os
->mtu
;
233 n
->mtu6
= s
->flags
& DEV_OPT_MTU6
? s
->mtu6
: os
->mtu6
;
234 n
->txqueuelen
= s
->flags
& DEV_OPT_TXQUEUELEN
?
235 s
->txqueuelen
: os
->txqueuelen
;
237 (s
->flags
& (DEV_OPT_MACADDR
|DEV_OPT_DEFAULT_MACADDR
) ? s
->macaddr
: os
->macaddr
),
239 n
->ipv6
= s
->flags
& DEV_OPT_IPV6
? s
->ipv6
: os
->ipv6
;
240 n
->ip6segmentrouting
= s
->flags
& DEV_OPT_IP6SEGMENTROUTING
? s
->ip6segmentrouting
: os
->ip6segmentrouting
;
241 n
->promisc
= s
->flags
& DEV_OPT_PROMISC
? s
->promisc
: os
->promisc
;
242 n
->rpfilter
= s
->flags
& DEV_OPT_RPFILTER
? s
->rpfilter
: os
->rpfilter
;
243 n
->acceptlocal
= s
->flags
& DEV_OPT_ACCEPTLOCAL
? s
->acceptlocal
: os
->acceptlocal
;
244 n
->igmpversion
= s
->flags
& DEV_OPT_IGMPVERSION
? s
->igmpversion
: os
->igmpversion
;
245 n
->mldversion
= s
->flags
& DEV_OPT_MLDVERSION
? s
->mldversion
: os
->mldversion
;
246 n
->neigh4reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
247 s
->neigh4reachabletime
: os
->neigh4reachabletime
;
248 n
->neigh6reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
249 s
->neigh6reachabletime
: os
->neigh6reachabletime
;
250 n
->neigh4gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
251 s
->neigh4gcstaletime
: os
->neigh4gcstaletime
;
252 n
->neigh6gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
253 s
->neigh6gcstaletime
: os
->neigh6gcstaletime
;
254 n
->neigh4locktime
= s
->flags
& DEV_OPT_NEIGHLOCKTIME
?
255 s
->neigh4locktime
: os
->neigh4locktime
;
256 n
->dadtransmits
= s
->flags
& DEV_OPT_DADTRANSMITS
?
257 s
->dadtransmits
: os
->dadtransmits
;
258 n
->multicast
= s
->flags
& DEV_OPT_MULTICAST
?
259 s
->multicast
: os
->multicast
;
260 n
->multicast_to_unicast
= s
->multicast_to_unicast
;
261 n
->multicast_router
= s
->multicast_router
;
262 n
->multicast_fast_leave
= s
->multicast_fast_leave
;
263 n
->learning
= s
->learning
;
264 n
->unicast_flood
= s
->unicast_flood
;
265 n
->sendredirects
= s
->flags
& DEV_OPT_SENDREDIRECTS
?
266 s
->sendredirects
: os
->sendredirects
;
267 n
->drop_v4_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
?
268 s
->drop_v4_unicast_in_l2_multicast
: os
->drop_v4_unicast_in_l2_multicast
;
269 n
->drop_v6_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
?
270 s
->drop_v6_unicast_in_l2_multicast
: os
->drop_v6_unicast_in_l2_multicast
;
271 n
->drop_gratuitous_arp
= s
->flags
& DEV_OPT_DROP_GRATUITOUS_ARP
?
272 s
->drop_gratuitous_arp
: os
->drop_gratuitous_arp
;
273 n
->drop_unsolicited_na
= s
->flags
& DEV_OPT_DROP_UNSOLICITED_NA
?
274 s
->drop_unsolicited_na
: os
->drop_unsolicited_na
;
275 n
->arp_accept
= s
->flags
& DEV_OPT_ARP_ACCEPT
?
276 s
->arp_accept
: os
->arp_accept
;
277 n
->auth
= s
->flags
& DEV_OPT_AUTH
? s
->auth
: os
->auth
;
278 n
->flags
= s
->flags
| os
->flags
| os
->valid_flags
;
282 device_init_settings(struct device
*dev
, struct blob_attr
**tb
)
284 struct device_settings
*s
= &dev
->settings
;
285 struct blob_attr
*cur
;
286 struct ether_addr
*ea
;
287 bool disabled
= false;
290 if ((cur
= tb
[DEV_ATTR_ENABLED
]))
291 disabled
= !blobmsg_get_bool(cur
);
293 if ((cur
= tb
[DEV_ATTR_MTU
]) && blobmsg_get_u32(cur
) >= 68) {
294 s
->mtu
= blobmsg_get_u32(cur
);
295 s
->flags
|= DEV_OPT_MTU
;
298 if ((cur
= tb
[DEV_ATTR_MTU6
]) && blobmsg_get_u32(cur
) >= 1280) {
299 s
->mtu6
= blobmsg_get_u32(cur
);
300 s
->flags
|= DEV_OPT_MTU6
;
303 if ((cur
= tb
[DEV_ATTR_TXQUEUELEN
])) {
304 s
->txqueuelen
= blobmsg_get_u32(cur
);
305 s
->flags
|= DEV_OPT_TXQUEUELEN
;
308 if ((cur
= tb
[DEV_ATTR_MACADDR
])) {
309 ea
= ether_aton(blobmsg_data(cur
));
311 memcpy(s
->macaddr
, ea
, 6);
312 s
->flags
|= DEV_OPT_MACADDR
;
316 if ((cur
= tb
[DEV_ATTR_IPV6
])) {
317 s
->ipv6
= blobmsg_get_bool(cur
);
318 s
->flags
|= DEV_OPT_IPV6
;
321 if ((cur
= tb
[DEV_ATTR_IP6SEGMENTROUTING
])) {
322 s
->ip6segmentrouting
= blobmsg_get_bool(cur
);
323 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
326 if ((cur
= tb
[DEV_ATTR_PROMISC
])) {
327 s
->promisc
= blobmsg_get_bool(cur
);
328 s
->flags
|= DEV_OPT_PROMISC
;
331 if ((cur
= tb
[DEV_ATTR_RPFILTER
])) {
332 if (system_resolve_rpfilter(blobmsg_data(cur
), &s
->rpfilter
))
333 s
->flags
|= DEV_OPT_RPFILTER
;
335 DPRINTF("Failed to resolve rpfilter: %s\n", (char *) blobmsg_data(cur
));
338 if ((cur
= tb
[DEV_ATTR_ACCEPTLOCAL
])) {
339 s
->acceptlocal
= blobmsg_get_bool(cur
);
340 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
343 if ((cur
= tb
[DEV_ATTR_IGMPVERSION
])) {
344 s
->igmpversion
= blobmsg_get_u32(cur
);
345 if (s
->igmpversion
>= 1 && s
->igmpversion
<= 3)
346 s
->flags
|= DEV_OPT_IGMPVERSION
;
348 DPRINTF("Failed to resolve igmpversion: %d\n", blobmsg_get_u32(cur
));
351 if ((cur
= tb
[DEV_ATTR_MLDVERSION
])) {
352 s
->mldversion
= blobmsg_get_u32(cur
);
353 if (s
->mldversion
>= 1 && s
->mldversion
<= 2)
354 s
->flags
|= DEV_OPT_MLDVERSION
;
356 DPRINTF("Failed to resolve mldversion: %d\n", blobmsg_get_u32(cur
));
359 if ((cur
= tb
[DEV_ATTR_NEIGHREACHABLETIME
])) {
360 s
->neigh6reachabletime
= s
->neigh4reachabletime
= blobmsg_get_u32(cur
);
361 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
364 if ((cur
= tb
[DEV_ATTR_NEIGHGCSTALETIME
])) {
365 s
->neigh6gcstaletime
= s
->neigh4gcstaletime
= blobmsg_get_u32(cur
);
366 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
369 if ((cur
= tb
[DEV_ATTR_NEIGHLOCKTIME
])) {
370 s
->neigh4locktime
= blobmsg_get_u32(cur
);
371 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
374 if ((cur
= tb
[DEV_ATTR_DADTRANSMITS
])) {
375 s
->dadtransmits
= blobmsg_get_u32(cur
);
376 s
->flags
|= DEV_OPT_DADTRANSMITS
;
379 if ((cur
= tb
[DEV_ATTR_MULTICAST_TO_UNICAST
])) {
380 s
->multicast_to_unicast
= blobmsg_get_bool(cur
);
381 s
->flags
|= DEV_OPT_MULTICAST_TO_UNICAST
;
384 if ((cur
= tb
[DEV_ATTR_MULTICAST_ROUTER
])) {
385 s
->multicast_router
= blobmsg_get_u32(cur
);
386 if (s
->multicast_router
<= 2)
387 s
->flags
|= DEV_OPT_MULTICAST_ROUTER
;
389 DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur
));
392 if ((cur
= tb
[DEV_ATTR_MULTICAST_FAST_LEAVE
])) {
393 s
->multicast_fast_leave
= blobmsg_get_bool(cur
);
394 s
->flags
|= DEV_OPT_MULTICAST_FAST_LEAVE
;
397 if ((cur
= tb
[DEV_ATTR_MULTICAST
])) {
398 s
->multicast
= blobmsg_get_bool(cur
);
399 s
->flags
|= DEV_OPT_MULTICAST
;
402 if ((cur
= tb
[DEV_ATTR_LEARNING
])) {
403 s
->learning
= blobmsg_get_bool(cur
);
404 s
->flags
|= DEV_OPT_LEARNING
;
407 if ((cur
= tb
[DEV_ATTR_UNICAST_FLOOD
])) {
408 s
->unicast_flood
= blobmsg_get_bool(cur
);
409 s
->flags
|= DEV_OPT_UNICAST_FLOOD
;
412 if ((cur
= tb
[DEV_ATTR_SENDREDIRECTS
])) {
413 s
->sendredirects
= blobmsg_get_bool(cur
);
414 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
417 if ((cur
= tb
[DEV_ATTR_ISOLATE
])) {
418 s
->isolate
= blobmsg_get_bool(cur
);
419 s
->flags
|= DEV_OPT_ISOLATE
;
422 if ((cur
= tb
[DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST
])) {
423 s
->drop_v4_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
424 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
427 if ((cur
= tb
[DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST
])) {
428 s
->drop_v6_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
429 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
432 if ((cur
= tb
[DEV_ATTR_DROP_GRATUITOUS_ARP
])) {
433 s
->drop_gratuitous_arp
= blobmsg_get_bool(cur
);
434 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
437 if ((cur
= tb
[DEV_ATTR_DROP_UNSOLICITED_NA
])) {
438 s
->drop_unsolicited_na
= blobmsg_get_bool(cur
);
439 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
442 if ((cur
= tb
[DEV_ATTR_ARP_ACCEPT
])) {
443 s
->arp_accept
= blobmsg_get_bool(cur
);
444 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
447 if ((cur
= tb
[DEV_ATTR_AUTH
])) {
448 s
->auth
= blobmsg_get_bool(cur
);
449 s
->flags
|= DEV_OPT_AUTH
;
452 device_set_disabled(dev
, disabled
);
455 static void __init
dev_init(void)
457 avl_init(&devices
, avl_strcmp
, true, NULL
);
460 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
462 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
465 /* device might have been removed by an earlier callback */
474 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
478 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
479 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
483 device_fill_default_settings(struct device
*dev
)
485 struct device_settings
*s
= &dev
->settings
;
486 struct ether_addr
*ea
;
488 if (!(s
->flags
& DEV_OPT_MACADDR
)) {
489 ea
= config_get_default_macaddr(dev
->ifname
);
491 memcpy(s
->macaddr
, ea
, 6);
492 s
->flags
|= DEV_OPT_DEFAULT_MACADDR
;
497 int device_claim(struct device_user
*dep
)
499 struct device
*dev
= dep
->dev
;
509 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
510 if (++dev
->active
!= 1)
513 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
514 device_fill_default_settings(dev
);
516 /* Get ifindex for external claimed devices so a valid */
517 /* ifindex is in place avoiding possible race conditions */
518 device_set_ifindex(dev
, system_if_resolve(dev
));
522 system_if_get_settings(dev
, &dev
->orig_settings
);
524 ret
= dev
->set_state(dev
, true);
527 device_broadcast_event(dev
, DEV_EVENT_UP
);
529 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
531 dep
->claimed
= false;
537 void device_release(struct device_user
*dep
)
539 struct device
*dev
= dep
->dev
;
544 dep
->claimed
= false;
546 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
547 assert(dev
->active
>= 0);
552 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
554 dev
->set_state(dev
, false);
559 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
562 int device_check_state(struct device
*dev
)
564 if (!dev
->type
->check_state
)
565 return simple_device_type
.check_state(dev
);
567 return dev
->type
->check_state(dev
);
570 int device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
575 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
576 INIT_SAFE_LIST(&dev
->users
);
577 INIT_SAFE_LIST(&dev
->aliases
);
583 ret
= device_set_ifname(dev
, name
);
589 dev
->set_state
= set_device_state
;
594 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
598 ret
= device_init_virtual(dev
, type
, ifname
);
602 dev
->avl
.key
= dev
->ifname
;
604 ret
= avl_insert(&devices
, &dev
->avl
);
608 system_if_clear_state(dev
);
613 static struct device
*
614 device_create_default(const char *name
, bool external
)
618 if (!external
&& system_if_force_external(name
))
621 D(DEVICE
, "Create simple device '%s'\n", name
);
622 dev
= calloc(1, sizeof(*dev
));
626 dev
->external
= external
;
627 dev
->set_state
= simple_device_set_state
;
629 if (device_init(dev
, &simple_device_type
, name
) < 0) {
635 dev
->default_config
= true;
637 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
639 device_check_state(dev
);
645 device_find(const char *name
)
649 return avl_find_element(&devices
, name
, dev
, avl
);
653 device_get(const char *name
, int create
)
657 dev
= avl_find_element(&devices
, name
, dev
, avl
);
659 if (!dev
&& strchr(name
, '.'))
660 return get_vlan_device_chain(name
, create
);
663 return device_alias_get(name
+ 1);
666 if (create
> 1 && !dev
->external
) {
667 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
668 dev
->external
= true;
669 device_set_present(dev
, true);
677 return device_create_default(name
, create
> 1);
681 device_delete(struct device
*dev
)
686 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
687 avl_delete(&devices
, &dev
->avl
);
691 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
693 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
695 dep
->cb(dep
, DEV_EVENT_REMOVE
);
701 void device_cleanup(struct device
*dev
)
703 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
704 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
705 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
709 static void __device_set_present(struct device
*dev
, bool state
)
711 if (dev
->present
== state
)
714 dev
->present
= state
;
715 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
719 device_refresh_present(struct device
*dev
)
721 bool state
= dev
->sys_present
;
723 if (dev
->disabled
|| dev
->deferred
)
726 __device_set_present(dev
, state
);
730 device_set_auth_status(struct device
*dev
, bool value
)
732 if (dev
->auth_status
== value
)
735 dev
->auth_status
= value
;
739 if (dev
->auth_status
) {
740 device_broadcast_event(dev
, DEV_EVENT_AUTH_UP
);
744 device_broadcast_event(dev
, DEV_EVENT_LINK_DOWN
);
745 if (!dev
->link_active
)
748 device_broadcast_event(dev
, DEV_EVENT_LINK_UP
);
751 void device_set_present(struct device
*dev
, bool state
)
753 if (dev
->sys_present
== state
)
756 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
757 dev
->sys_present
= state
;
758 device_refresh_present(dev
);
761 void device_set_link(struct device
*dev
, bool state
)
763 if (dev
->link_active
== state
)
766 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
768 dev
->link_active
= state
;
770 dev
->auth_status
= false;
771 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
774 void device_set_ifindex(struct device
*dev
, int ifindex
)
776 if (dev
->ifindex
== ifindex
)
779 dev
->ifindex
= ifindex
;
780 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
783 int device_set_ifname(struct device
*dev
, const char *name
)
787 if (!strcmp(dev
->ifname
, name
))
790 if (strlen(name
) > sizeof(dev
->ifname
) - 1)
794 avl_delete(&devices
, &dev
->avl
);
796 strcpy(dev
->ifname
, name
);
799 ret
= avl_insert(&devices
, &dev
->avl
);
802 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
807 static int device_refcount(struct device
*dev
)
809 struct list_head
*list
;
812 list_for_each(list
, &dev
->users
.list
)
815 list_for_each(list
, &dev
->aliases
.list
)
822 __device_add_user(struct device_user
*dep
, struct device
*dev
)
824 struct safe_list
*head
;
829 head
= &dev
->aliases
;
833 safe_list_add(&dep
->list
, head
);
834 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
836 if (dep
->cb
&& dev
->present
) {
837 dep
->cb(dep
, DEV_EVENT_ADD
);
839 dep
->cb(dep
, DEV_EVENT_UP
);
841 if (dev
->link_active
)
842 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
846 void device_add_user(struct device_user
*dep
, struct device
*dev
)
852 device_remove_user(dep
);
857 __device_add_user(dep
, dev
);
861 device_free(struct device
*dev
)
866 dev
->type
->free(dev
);
871 __device_free_unused(struct device
*dev
)
873 if (!safe_list_empty(&dev
->users
) ||
874 !safe_list_empty(&dev
->aliases
) ||
875 dev
->current_config
|| __devlock
)
881 void device_remove_user(struct device_user
*dep
)
883 struct device
*dev
= dep
->dev
;
888 dep
->hotplug
= false;
892 safe_list_del(&dep
->list
);
894 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
895 __device_free_unused(dev
);
899 device_free_unused(struct device
*dev
)
904 return __device_free_unused(dev
);
906 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
)
907 __device_free_unused(dev
);
911 device_init_pending(void)
913 struct device
*dev
, *tmp
;
915 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
916 if (!dev
->config_pending
)
919 dev
->type
->config_init(dev
);
920 dev
->config_pending
= false;
921 device_check_state(dev
);
926 device_check_ip6segmentrouting(void)
929 bool ip6segmentrouting
= false;
931 avl_for_each_element(&devices
, dev
, avl
)
932 ip6segmentrouting
|= dev
->settings
.ip6segmentrouting
;
934 return ip6segmentrouting
;
937 static enum dev_change_type
938 device_set_config(struct device
*dev
, struct device_type
*type
,
939 struct blob_attr
*attr
)
941 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
942 const struct uci_blob_param_list
*cfg
= type
->config_params
;
944 if (type
!= dev
->type
)
945 return DEV_CONFIG_RECREATE
;
947 if (dev
->type
->reload
)
948 return dev
->type
->reload(dev
, attr
);
950 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
951 return DEV_CONFIG_NO_CHANGE
;
953 if (cfg
== &device_attr_list
) {
954 memset(tb
, 0, sizeof(tb
));
957 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
958 blob_data(attr
), blob_len(attr
));
960 device_init_settings(dev
, tb
);
961 return DEV_CONFIG_RESTART
;
963 return DEV_CONFIG_RECREATE
;
967 device_apply_config(struct device
*dev
, struct device_type
*type
,
968 struct blob_attr
*config
)
970 enum dev_change_type change
;
972 change
= device_set_config(dev
, type
, config
);
974 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
975 change
= DEV_CONFIG_APPLIED
;
979 case DEV_CONFIG_RESTART
:
980 case DEV_CONFIG_APPLIED
:
981 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
982 config
= blob_memdup(config
);
984 dev
->config
= config
;
985 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
988 device_set_present(dev
, false);
989 if (dev
->active
&& !dev
->external
) {
990 ret
= dev
->set_state(dev
, false);
992 ret
= dev
->set_state(dev
, true);
995 device_set_present(dev
, true);
998 case DEV_CONFIG_NO_CHANGE
:
999 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
1001 case DEV_CONFIG_RECREATE
:
1009 device_replace(struct device
*dev
, struct device
*odev
)
1011 struct device_user
*dep
, *tmp
;
1015 device_set_present(odev
, false);
1017 list_for_each_entry_safe(dep
, tmp
, &odev
->users
.list
, list
.list
) {
1018 device_release(dep
);
1019 safe_list_del(&dep
->list
);
1020 __device_add_user(dep
, dev
);
1028 device_reset_config(void)
1032 avl_for_each_element(&devices
, dev
, avl
)
1033 dev
->current_config
= false;
1037 device_reset_old(void)
1039 struct device
*dev
, *tmp
, *ndev
;
1041 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
1042 if (dev
->current_config
|| dev
->default_config
)
1045 if (dev
->type
!= &simple_device_type
)
1048 ndev
= device_create_default(dev
->ifname
, dev
->external
);
1052 device_replace(ndev
, dev
);
1057 device_create(const char *name
, struct device_type
*type
,
1058 struct blob_attr
*config
)
1060 struct device
*odev
= NULL
, *dev
;
1061 enum dev_change_type change
;
1063 odev
= device_find(name
);
1065 odev
->current_config
= true;
1066 change
= device_apply_config(odev
, type
, config
);
1068 case DEV_CONFIG_RECREATE
:
1069 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
1070 device_delete(odev
);
1076 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
1078 config
= blob_memdup(config
);
1082 dev
= type
->create(name
, type
, config
);
1086 dev
->current_config
= true;
1087 dev
->config
= config
;
1089 device_replace(dev
, odev
);
1091 if (!config_init
&& dev
->config_pending
) {
1092 type
->config_init(dev
);
1093 dev
->config_pending
= false;
1096 device_check_state(dev
);
1102 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
1104 struct device_settings st
;
1108 avl_for_each_element(&devices
, dev
, avl
) {
1111 c
= blobmsg_open_table(b
, dev
->ifname
);
1112 device_dump_status(b
, dev
);
1113 blobmsg_close_table(b
, c
);
1119 blobmsg_add_u8(b
, "external", dev
->external
);
1120 blobmsg_add_u8(b
, "present", dev
->present
);
1121 blobmsg_add_string(b
, "type", dev
->type
->name
);
1126 blobmsg_add_u8(b
, "up", !!dev
->active
);
1127 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1128 blobmsg_add_u8(b
, "auth_status", !!dev
->auth_status
);
1130 if (dev
->type
->dump_info
)
1131 dev
->type
->dump_info(dev
, b
);
1133 system_if_dump_info(dev
, b
);
1136 device_merge_settings(dev
, &st
);
1137 if (st
.flags
& DEV_OPT_MTU
)
1138 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1139 if (st
.flags
& DEV_OPT_MTU6
)
1140 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1141 if (st
.flags
& DEV_OPT_MACADDR
)
1142 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1143 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1144 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1145 if (st
.flags
& DEV_OPT_IPV6
)
1146 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1147 if (st
.flags
& DEV_OPT_IP6SEGMENTROUTING
)
1148 blobmsg_add_u8(b
, "ip6segmentrouting", st
.ip6segmentrouting
);
1149 if (st
.flags
& DEV_OPT_PROMISC
)
1150 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1151 if (st
.flags
& DEV_OPT_RPFILTER
)
1152 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1153 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1154 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1155 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1156 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1157 if (st
.flags
& DEV_OPT_MLDVERSION
)
1158 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1159 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1160 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1161 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1163 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1164 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1165 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1167 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1168 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1169 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1170 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1171 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1172 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1173 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1174 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1175 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1176 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1177 if (st
.flags
& DEV_OPT_MULTICAST
)
1178 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1179 if (st
.flags
& DEV_OPT_LEARNING
)
1180 blobmsg_add_u8(b
, "learning", st
.learning
);
1181 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1182 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1183 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1184 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1185 if (st
.flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1186 blobmsg_add_u8(b
, "drop_v4_unicast_in_l2_multicast", st
.drop_v4_unicast_in_l2_multicast
);
1187 if (st
.flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1188 blobmsg_add_u8(b
, "drop_v6_unicast_in_l2_multicast", st
.drop_v6_unicast_in_l2_multicast
);
1189 if (st
.flags
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1190 blobmsg_add_u8(b
, "drop_gratuitous_arp", st
.drop_gratuitous_arp
);
1191 if (st
.flags
& DEV_OPT_DROP_UNSOLICITED_NA
)
1192 blobmsg_add_u8(b
, "drop_unsolicited_na", st
.drop_unsolicited_na
);
1193 if (st
.flags
& DEV_OPT_ARP_ACCEPT
)
1194 blobmsg_add_u8(b
, "arp_accept", st
.arp_accept
);
1195 if (st
.flags
& DEV_OPT_AUTH
)
1196 blobmsg_add_u8(b
, "auth", st
.auth
);
1199 s
= blobmsg_open_table(b
, "statistics");
1200 if (dev
->type
->dump_stats
)
1201 dev
->type
->dump_stats(dev
, b
);
1203 system_if_dump_stats(dev
, b
);
1204 blobmsg_close_table(b
, s
);
1207 static void __init
simple_device_type_init(void)
1209 device_type_add(&simple_device_type
);
1212 void device_hotplug_event(const char *name
, bool add
)
1216 dev
= device_find(name
);
1217 if (!dev
|| dev
->type
!= &simple_device_type
)
1220 device_set_present(dev
, add
);