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>
29 static struct list_head devtypes
= LIST_HEAD_INIT(devtypes
);
30 static struct avl_tree devices
;
32 static const struct blobmsg_policy dev_attrs
[__DEV_ATTR_MAX
] = {
33 [DEV_ATTR_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
34 [DEV_ATTR_MTU
] = { .name
= "mtu", .type
= BLOBMSG_TYPE_INT32
},
35 [DEV_ATTR_MTU6
] = { .name
= "mtu6", .type
= BLOBMSG_TYPE_INT32
},
36 [DEV_ATTR_MACADDR
] = { .name
= "macaddr", .type
= BLOBMSG_TYPE_STRING
},
37 [DEV_ATTR_TXQUEUELEN
] = { .name
= "txqueuelen", .type
= BLOBMSG_TYPE_INT32
},
38 [DEV_ATTR_ENABLED
] = { .name
= "enabled", .type
= BLOBMSG_TYPE_BOOL
},
39 [DEV_ATTR_IPV6
] = { .name
= "ipv6", .type
= BLOBMSG_TYPE_BOOL
},
40 [DEV_ATTR_IP6SEGMENTROUTING
] = { .name
= "ip6segmentrouting", .type
= BLOBMSG_TYPE_BOOL
},
41 [DEV_ATTR_PROMISC
] = { .name
= "promisc", .type
= BLOBMSG_TYPE_BOOL
},
42 [DEV_ATTR_RPFILTER
] = { .name
= "rpfilter", .type
= BLOBMSG_TYPE_STRING
},
43 [DEV_ATTR_ACCEPTLOCAL
] = { .name
= "acceptlocal", .type
= BLOBMSG_TYPE_BOOL
},
44 [DEV_ATTR_IGMPVERSION
] = { .name
= "igmpversion", .type
= BLOBMSG_TYPE_INT32
},
45 [DEV_ATTR_MLDVERSION
] = { .name
= "mldversion", .type
= BLOBMSG_TYPE_INT32
},
46 [DEV_ATTR_NEIGHREACHABLETIME
] = { .name
= "neighreachabletime", .type
= BLOBMSG_TYPE_INT32
},
47 [DEV_ATTR_NEIGHGCSTALETIME
] = { .name
= "neighgcstaletime", .type
= BLOBMSG_TYPE_INT32
},
48 [DEV_ATTR_DADTRANSMITS
] = { .name
= "dadtransmits", .type
= BLOBMSG_TYPE_INT32
},
49 [DEV_ATTR_MULTICAST_TO_UNICAST
] = { .name
= "multicast_to_unicast", .type
= BLOBMSG_TYPE_BOOL
},
50 [DEV_ATTR_MULTICAST_ROUTER
] = { .name
= "multicast_router", .type
= BLOBMSG_TYPE_INT32
},
51 [DEV_ATTR_MULTICAST_FAST_LEAVE
] = { .name
= "multicast_fast_leave", . type
= BLOBMSG_TYPE_BOOL
},
52 [DEV_ATTR_MULTICAST
] = { .name
="multicast", .type
= BLOBMSG_TYPE_BOOL
},
53 [DEV_ATTR_LEARNING
] = { .name
="learning", .type
= BLOBMSG_TYPE_BOOL
},
54 [DEV_ATTR_UNICAST_FLOOD
] = { .name
="unicast_flood", .type
= BLOBMSG_TYPE_BOOL
},
55 [DEV_ATTR_SENDREDIRECTS
] = { .name
= "sendredirects", .type
= BLOBMSG_TYPE_BOOL
},
56 [DEV_ATTR_NEIGHLOCKTIME
] = { .name
= "neighlocktime", .type
= BLOBMSG_TYPE_INT32
},
57 [DEV_ATTR_ISOLATE
] = { .name
= "isolate", .type
= BLOBMSG_TYPE_BOOL
},
58 [DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST
] = { .name
= "drop_v4_unicast_in_l2_multicast", .type
= BLOBMSG_TYPE_BOOL
},
59 [DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST
] = { .name
= "drop_v6_unicast_in_l2_multicast", .type
= BLOBMSG_TYPE_BOOL
},
60 [DEV_ATTR_DROP_GRATUITOUS_ARP
] = { .name
= "drop_gratuitous_arp", .type
= BLOBMSG_TYPE_BOOL
},
61 [DEV_ATTR_DROP_UNSOLICITED_NA
] = { .name
= "drop_unsolicited_na", .type
= BLOBMSG_TYPE_BOOL
},
62 [DEV_ATTR_ARP_ACCEPT
] = { .name
= "arp_accept", .type
= BLOBMSG_TYPE_BOOL
},
63 [DEV_ATTR_AUTH
] = { .name
= "auth", .type
= BLOBMSG_TYPE_BOOL
},
64 [DEV_ATTR_SPEED
] = { .name
= "speed", .type
= BLOBMSG_TYPE_INT32
},
65 [DEV_ATTR_DUPLEX
] = { .name
= "duplex", .type
= BLOBMSG_TYPE_BOOL
},
68 const struct uci_blob_param_list device_attr_list
= {
69 .n_params
= __DEV_ATTR_MAX
,
73 static int __devlock
= 0;
75 int device_type_add(struct device_type
*devtype
)
77 if (device_type_get(devtype
->name
)) {
78 netifd_log_message(L_WARNING
, "Device handler '%s' already exists\n",
83 netifd_log_message(L_NOTICE
, "Added device handler type: %s\n",
86 list_add(&devtype
->list
, &devtypes
);
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 static int device_vlan_len(struct kvlist
*kv
, const void *data
)
104 return sizeof(unsigned int);
107 void device_vlan_update(bool done
)
111 avl_for_each_element(&devices
, dev
, avl
) {
112 if (!dev
->vlans
.update
)
116 if (dev
->vlan_aliases
.get_len
)
117 kvlist_free(&dev
->vlan_aliases
);
119 kvlist_init(&dev
->vlan_aliases
, device_vlan_len
);
120 vlist_update(&dev
->vlans
);
122 vlist_flush(&dev
->vlans
);
124 if (dev
->type
->vlan_update
)
125 dev
->type
->vlan_update(dev
);
130 void device_stp_init(void)
134 avl_for_each_element(&devices
, dev
, avl
) {
135 if (!dev
->type
->stp_init
)
138 dev
->type
->stp_init(dev
);
142 static int set_device_state(struct device
*dev
, bool state
)
145 /* Get ifindex for all devices being enabled so a valid */
146 /* ifindex is in place avoiding possible race conditions */
147 device_set_ifindex(dev
, system_if_resolve(dev
));
151 system_if_get_settings(dev
, &dev
->orig_settings
);
152 /* Only keep orig settings based on what needs to be set */
153 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
154 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
155 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
160 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
167 simple_device_set_state(struct device
*dev
, bool state
)
172 pdev
= dev
->parent
.dev
;
173 if (state
&& !pdev
) {
174 pdev
= system_if_get_parent(dev
);
176 device_add_user(&dev
->parent
, pdev
);
181 ret
= device_claim(&dev
->parent
);
183 device_release(&dev
->parent
);
188 return set_device_state(dev
, state
);
191 static struct device
*
192 simple_device_create(const char *name
, struct device_type
*devtype
,
193 struct blob_attr
*attr
)
195 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
196 struct device
*dev
= NULL
;
198 /* device type is unused for simple devices */
201 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
, blob_data(attr
), blob_len(attr
));
202 dev
= device_get(name
, true);
206 dev
->set_state
= simple_device_set_state
;
207 device_init_settings(dev
, tb
);
212 static void simple_device_free(struct device
*dev
)
215 device_remove_user(&dev
->parent
);
219 struct device_type simple_device_type
= {
220 .name
= "Network device",
221 .config_params
= &device_attr_list
,
223 .create
= simple_device_create
,
224 .check_state
= system_if_check
,
225 .free
= simple_device_free
,
229 device_merge_settings(struct device
*dev
, struct device_settings
*n
)
231 struct device_settings
*os
= &dev
->orig_settings
;
232 struct device_settings
*s
= &dev
->settings
;
234 memset(n
, 0, sizeof(*n
));
235 n
->mtu
= s
->flags
& DEV_OPT_MTU
? s
->mtu
: os
->mtu
;
236 n
->mtu6
= s
->flags
& DEV_OPT_MTU6
? s
->mtu6
: os
->mtu6
;
237 n
->txqueuelen
= s
->flags
& DEV_OPT_TXQUEUELEN
?
238 s
->txqueuelen
: os
->txqueuelen
;
240 (s
->flags
& (DEV_OPT_MACADDR
|DEV_OPT_DEFAULT_MACADDR
) ? s
->macaddr
: os
->macaddr
),
242 n
->ipv6
= s
->flags
& DEV_OPT_IPV6
? s
->ipv6
: os
->ipv6
;
243 n
->ip6segmentrouting
= s
->flags
& DEV_OPT_IP6SEGMENTROUTING
? s
->ip6segmentrouting
: os
->ip6segmentrouting
;
244 n
->promisc
= s
->flags
& DEV_OPT_PROMISC
? s
->promisc
: os
->promisc
;
245 n
->rpfilter
= s
->flags
& DEV_OPT_RPFILTER
? s
->rpfilter
: os
->rpfilter
;
246 n
->acceptlocal
= s
->flags
& DEV_OPT_ACCEPTLOCAL
? s
->acceptlocal
: os
->acceptlocal
;
247 n
->igmpversion
= s
->flags
& DEV_OPT_IGMPVERSION
? s
->igmpversion
: os
->igmpversion
;
248 n
->mldversion
= s
->flags
& DEV_OPT_MLDVERSION
? s
->mldversion
: os
->mldversion
;
249 n
->neigh4reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
250 s
->neigh4reachabletime
: os
->neigh4reachabletime
;
251 n
->neigh6reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
252 s
->neigh6reachabletime
: os
->neigh6reachabletime
;
253 n
->neigh4gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
254 s
->neigh4gcstaletime
: os
->neigh4gcstaletime
;
255 n
->neigh6gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
256 s
->neigh6gcstaletime
: os
->neigh6gcstaletime
;
257 n
->neigh4locktime
= s
->flags
& DEV_OPT_NEIGHLOCKTIME
?
258 s
->neigh4locktime
: os
->neigh4locktime
;
259 n
->dadtransmits
= s
->flags
& DEV_OPT_DADTRANSMITS
?
260 s
->dadtransmits
: os
->dadtransmits
;
261 n
->multicast
= s
->flags
& DEV_OPT_MULTICAST
?
262 s
->multicast
: os
->multicast
;
263 n
->multicast_to_unicast
= s
->multicast_to_unicast
;
264 n
->multicast_router
= s
->multicast_router
;
265 n
->multicast_fast_leave
= s
->multicast_fast_leave
;
266 n
->learning
= s
->learning
;
267 n
->unicast_flood
= s
->unicast_flood
;
268 n
->sendredirects
= s
->flags
& DEV_OPT_SENDREDIRECTS
?
269 s
->sendredirects
: os
->sendredirects
;
270 n
->drop_v4_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
?
271 s
->drop_v4_unicast_in_l2_multicast
: os
->drop_v4_unicast_in_l2_multicast
;
272 n
->drop_v6_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
?
273 s
->drop_v6_unicast_in_l2_multicast
: os
->drop_v6_unicast_in_l2_multicast
;
274 n
->drop_gratuitous_arp
= s
->flags
& DEV_OPT_DROP_GRATUITOUS_ARP
?
275 s
->drop_gratuitous_arp
: os
->drop_gratuitous_arp
;
276 n
->drop_unsolicited_na
= s
->flags
& DEV_OPT_DROP_UNSOLICITED_NA
?
277 s
->drop_unsolicited_na
: os
->drop_unsolicited_na
;
278 n
->arp_accept
= s
->flags
& DEV_OPT_ARP_ACCEPT
?
279 s
->arp_accept
: os
->arp_accept
;
280 n
->auth
= s
->flags
& DEV_OPT_AUTH
? s
->auth
: os
->auth
;
281 n
->speed
= s
->flags
& DEV_OPT_SPEED
? s
->speed
: os
->speed
;
282 n
->duplex
= s
->flags
& DEV_OPT_DUPLEX
? s
->duplex
: os
->duplex
;
283 n
->flags
= s
->flags
| os
->flags
| os
->valid_flags
;
287 device_init_settings(struct device
*dev
, struct blob_attr
**tb
)
289 struct device_settings
*s
= &dev
->settings
;
290 struct blob_attr
*cur
;
291 struct ether_addr
*ea
;
292 bool disabled
= false;
295 if ((cur
= tb
[DEV_ATTR_ENABLED
]))
296 disabled
= !blobmsg_get_bool(cur
);
298 if ((cur
= tb
[DEV_ATTR_MTU
]) && blobmsg_get_u32(cur
) >= 68) {
299 s
->mtu
= blobmsg_get_u32(cur
);
300 s
->flags
|= DEV_OPT_MTU
;
303 if ((cur
= tb
[DEV_ATTR_MTU6
]) && blobmsg_get_u32(cur
) >= 1280) {
304 s
->mtu6
= blobmsg_get_u32(cur
);
305 s
->flags
|= DEV_OPT_MTU6
;
308 if ((cur
= tb
[DEV_ATTR_TXQUEUELEN
])) {
309 s
->txqueuelen
= blobmsg_get_u32(cur
);
310 s
->flags
|= DEV_OPT_TXQUEUELEN
;
313 if ((cur
= tb
[DEV_ATTR_MACADDR
])) {
314 ea
= ether_aton(blobmsg_data(cur
));
316 memcpy(s
->macaddr
, ea
, 6);
317 s
->flags
|= DEV_OPT_MACADDR
;
321 if ((cur
= tb
[DEV_ATTR_IPV6
])) {
322 s
->ipv6
= blobmsg_get_bool(cur
);
323 s
->flags
|= DEV_OPT_IPV6
;
326 if ((cur
= tb
[DEV_ATTR_IP6SEGMENTROUTING
])) {
327 s
->ip6segmentrouting
= blobmsg_get_bool(cur
);
328 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
331 if ((cur
= tb
[DEV_ATTR_PROMISC
])) {
332 s
->promisc
= blobmsg_get_bool(cur
);
333 s
->flags
|= DEV_OPT_PROMISC
;
336 if ((cur
= tb
[DEV_ATTR_RPFILTER
])) {
337 if (system_resolve_rpfilter(blobmsg_data(cur
), &s
->rpfilter
))
338 s
->flags
|= DEV_OPT_RPFILTER
;
340 DPRINTF("Failed to resolve rpfilter: %s\n", (char *) blobmsg_data(cur
));
343 if ((cur
= tb
[DEV_ATTR_ACCEPTLOCAL
])) {
344 s
->acceptlocal
= blobmsg_get_bool(cur
);
345 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
348 if ((cur
= tb
[DEV_ATTR_IGMPVERSION
])) {
349 s
->igmpversion
= blobmsg_get_u32(cur
);
350 if (s
->igmpversion
>= 1 && s
->igmpversion
<= 3)
351 s
->flags
|= DEV_OPT_IGMPVERSION
;
353 DPRINTF("Failed to resolve igmpversion: %d\n", blobmsg_get_u32(cur
));
356 if ((cur
= tb
[DEV_ATTR_MLDVERSION
])) {
357 s
->mldversion
= blobmsg_get_u32(cur
);
358 if (s
->mldversion
>= 1 && s
->mldversion
<= 2)
359 s
->flags
|= DEV_OPT_MLDVERSION
;
361 DPRINTF("Failed to resolve mldversion: %d\n", blobmsg_get_u32(cur
));
364 if ((cur
= tb
[DEV_ATTR_NEIGHREACHABLETIME
])) {
365 s
->neigh6reachabletime
= s
->neigh4reachabletime
= blobmsg_get_u32(cur
);
366 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
369 if ((cur
= tb
[DEV_ATTR_NEIGHGCSTALETIME
])) {
370 s
->neigh6gcstaletime
= s
->neigh4gcstaletime
= blobmsg_get_u32(cur
);
371 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
374 if ((cur
= tb
[DEV_ATTR_NEIGHLOCKTIME
])) {
375 s
->neigh4locktime
= blobmsg_get_u32(cur
);
376 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
379 if ((cur
= tb
[DEV_ATTR_DADTRANSMITS
])) {
380 s
->dadtransmits
= blobmsg_get_u32(cur
);
381 s
->flags
|= DEV_OPT_DADTRANSMITS
;
384 if ((cur
= tb
[DEV_ATTR_MULTICAST_TO_UNICAST
])) {
385 s
->multicast_to_unicast
= blobmsg_get_bool(cur
);
386 s
->flags
|= DEV_OPT_MULTICAST_TO_UNICAST
;
389 if ((cur
= tb
[DEV_ATTR_MULTICAST_ROUTER
])) {
390 s
->multicast_router
= blobmsg_get_u32(cur
);
391 if (s
->multicast_router
<= 2)
392 s
->flags
|= DEV_OPT_MULTICAST_ROUTER
;
394 DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur
));
397 if ((cur
= tb
[DEV_ATTR_MULTICAST_FAST_LEAVE
])) {
398 s
->multicast_fast_leave
= blobmsg_get_bool(cur
);
399 s
->flags
|= DEV_OPT_MULTICAST_FAST_LEAVE
;
402 if ((cur
= tb
[DEV_ATTR_MULTICAST
])) {
403 s
->multicast
= blobmsg_get_bool(cur
);
404 s
->flags
|= DEV_OPT_MULTICAST
;
407 if ((cur
= tb
[DEV_ATTR_LEARNING
])) {
408 s
->learning
= blobmsg_get_bool(cur
);
409 s
->flags
|= DEV_OPT_LEARNING
;
412 if ((cur
= tb
[DEV_ATTR_UNICAST_FLOOD
])) {
413 s
->unicast_flood
= blobmsg_get_bool(cur
);
414 s
->flags
|= DEV_OPT_UNICAST_FLOOD
;
417 if ((cur
= tb
[DEV_ATTR_SENDREDIRECTS
])) {
418 s
->sendredirects
= blobmsg_get_bool(cur
);
419 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
422 if ((cur
= tb
[DEV_ATTR_ISOLATE
])) {
423 s
->isolate
= blobmsg_get_bool(cur
);
424 s
->flags
|= DEV_OPT_ISOLATE
;
427 if ((cur
= tb
[DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST
])) {
428 s
->drop_v4_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
429 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
432 if ((cur
= tb
[DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST
])) {
433 s
->drop_v6_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
434 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
437 if ((cur
= tb
[DEV_ATTR_DROP_GRATUITOUS_ARP
])) {
438 s
->drop_gratuitous_arp
= blobmsg_get_bool(cur
);
439 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
442 if ((cur
= tb
[DEV_ATTR_DROP_UNSOLICITED_NA
])) {
443 s
->drop_unsolicited_na
= blobmsg_get_bool(cur
);
444 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
447 if ((cur
= tb
[DEV_ATTR_ARP_ACCEPT
])) {
448 s
->arp_accept
= blobmsg_get_bool(cur
);
449 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
452 if ((cur
= tb
[DEV_ATTR_AUTH
])) {
453 s
->auth
= blobmsg_get_bool(cur
);
454 s
->flags
|= DEV_OPT_AUTH
;
457 if ((cur
= tb
[DEV_ATTR_SPEED
])) {
458 s
->speed
= blobmsg_get_u32(cur
);
459 s
->flags
|= DEV_OPT_SPEED
;
462 if ((cur
= tb
[DEV_ATTR_DUPLEX
])) {
463 s
->duplex
= blobmsg_get_bool(cur
);
464 s
->flags
|= DEV_OPT_DUPLEX
;
467 device_set_disabled(dev
, disabled
);
470 static void __init
dev_init(void)
472 avl_init(&devices
, avl_strcmp
, true, NULL
);
475 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
477 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
480 /* device might have been removed by an earlier callback */
489 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
493 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
494 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
498 device_fill_default_settings(struct device
*dev
)
500 struct device_settings
*s
= &dev
->settings
;
501 struct ether_addr
*ea
;
503 if (!(s
->flags
& DEV_OPT_MACADDR
)) {
504 ea
= config_get_default_macaddr(dev
->ifname
);
506 memcpy(s
->macaddr
, ea
, 6);
507 s
->flags
|= DEV_OPT_DEFAULT_MACADDR
;
512 int device_claim(struct device_user
*dep
)
514 struct device
*dev
= dep
->dev
;
524 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
525 if (++dev
->active
!= 1)
528 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
529 device_fill_default_settings(dev
);
531 /* Get ifindex for external claimed devices so a valid */
532 /* ifindex is in place avoiding possible race conditions */
533 device_set_ifindex(dev
, system_if_resolve(dev
));
537 system_if_get_settings(dev
, &dev
->orig_settings
);
539 ret
= dev
->set_state(dev
, true);
542 device_broadcast_event(dev
, DEV_EVENT_UP
);
544 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
546 dep
->claimed
= false;
552 void device_release(struct device_user
*dep
)
554 struct device
*dev
= dep
->dev
;
559 dep
->claimed
= false;
561 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
562 assert(dev
->active
>= 0);
567 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
569 dev
->set_state(dev
, false);
574 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
577 int device_check_state(struct device
*dev
)
579 if (!dev
->type
->check_state
)
580 return simple_device_type
.check_state(dev
);
582 return dev
->type
->check_state(dev
);
585 int device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
590 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
591 INIT_SAFE_LIST(&dev
->users
);
592 INIT_SAFE_LIST(&dev
->aliases
);
598 ret
= device_set_ifname(dev
, name
);
604 dev
->set_state
= set_device_state
;
609 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
613 ret
= device_init_virtual(dev
, type
, ifname
);
617 dev
->avl
.key
= dev
->ifname
;
619 ret
= avl_insert(&devices
, &dev
->avl
);
623 system_if_clear_state(dev
);
628 static struct device
*
629 device_create_default(const char *name
, bool external
)
633 if (!external
&& system_if_force_external(name
))
636 D(DEVICE
, "Create simple device '%s'\n", name
);
637 dev
= calloc(1, sizeof(*dev
));
641 dev
->external
= external
;
642 dev
->set_state
= simple_device_set_state
;
644 if (device_init(dev
, &simple_device_type
, name
) < 0) {
650 dev
->default_config
= true;
652 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
654 device_check_state(dev
);
660 device_find(const char *name
)
664 return avl_find_element(&devices
, name
, dev
, avl
);
668 __device_get(const char *name
, int create
, bool check_vlan
)
672 dev
= avl_find_element(&devices
, name
, dev
, avl
);
674 if (!dev
&& check_vlan
&& strchr(name
, '.'))
675 return get_vlan_device_chain(name
, create
);
678 return device_alias_get(name
+ 1);
681 if (create
> 1 && !dev
->external
) {
682 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
683 dev
->external
= true;
684 device_set_present(dev
, true);
692 return device_create_default(name
, create
> 1);
696 device_delete(struct device
*dev
)
701 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
702 avl_delete(&devices
, &dev
->avl
);
706 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
708 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
710 dep
->cb(dep
, DEV_EVENT_REMOVE
);
716 void device_cleanup(struct device
*dev
)
718 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
719 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
720 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
724 static void __device_set_present(struct device
*dev
, bool state
)
726 if (dev
->present
== state
)
729 dev
->present
= state
;
730 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
734 device_refresh_present(struct device
*dev
)
736 bool state
= dev
->sys_present
;
738 if (dev
->disabled
|| dev
->deferred
)
741 __device_set_present(dev
, state
);
745 device_set_auth_status(struct device
*dev
, bool value
)
747 if (dev
->auth_status
== value
)
750 dev
->auth_status
= value
;
754 if (dev
->auth_status
) {
755 device_broadcast_event(dev
, DEV_EVENT_AUTH_UP
);
759 device_broadcast_event(dev
, DEV_EVENT_LINK_DOWN
);
760 if (!dev
->link_active
)
763 device_broadcast_event(dev
, DEV_EVENT_LINK_UP
);
766 void device_set_present(struct device
*dev
, bool state
)
768 if (dev
->sys_present
== state
)
771 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
772 dev
->sys_present
= state
;
773 device_refresh_present(dev
);
776 void device_set_link(struct device
*dev
, bool state
)
778 if (dev
->link_active
== state
)
781 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
783 dev
->link_active
= state
;
785 dev
->auth_status
= false;
786 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
789 void device_set_ifindex(struct device
*dev
, int ifindex
)
791 if (dev
->ifindex
== ifindex
)
794 dev
->ifindex
= ifindex
;
795 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
798 int device_set_ifname(struct device
*dev
, const char *name
)
802 if (!strcmp(dev
->ifname
, name
))
805 if (strlen(name
) > sizeof(dev
->ifname
) - 1)
809 avl_delete(&devices
, &dev
->avl
);
811 strcpy(dev
->ifname
, name
);
814 ret
= avl_insert(&devices
, &dev
->avl
);
817 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
822 static int device_refcount(struct device
*dev
)
824 struct list_head
*list
;
827 list_for_each(list
, &dev
->users
.list
)
830 list_for_each(list
, &dev
->aliases
.list
)
837 __device_add_user(struct device_user
*dep
, struct device
*dev
)
839 struct safe_list
*head
;
844 head
= &dev
->aliases
;
848 safe_list_add(&dep
->list
, head
);
849 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
851 if (dep
->cb
&& dev
->present
) {
852 dep
->cb(dep
, DEV_EVENT_ADD
);
854 dep
->cb(dep
, DEV_EVENT_UP
);
856 if (dev
->link_active
)
857 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
861 void device_add_user(struct device_user
*dep
, struct device
*dev
)
867 device_remove_user(dep
);
872 __device_add_user(dep
, dev
);
876 device_free(struct device
*dev
)
881 dev
->type
->free(dev
);
886 __device_free_unused(struct uloop_timeout
*timeout
)
888 struct device
*dev
, *tmp
;
890 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
891 if (!safe_list_empty(&dev
->users
) ||
892 !safe_list_empty(&dev
->aliases
) ||
900 void device_free_unused(void)
902 static struct uloop_timeout free_timer
= {
903 .cb
= __device_free_unused
,
906 uloop_timeout_set(&free_timer
, 1);
909 void device_remove_user(struct device_user
*dep
)
911 struct device
*dev
= dep
->dev
;
916 dep
->hotplug
= false;
920 safe_list_del(&dep
->list
);
922 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
923 device_free_unused();
927 device_init_pending(void)
929 struct device
*dev
, *tmp
;
931 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
932 if (!dev
->config_pending
)
935 dev
->type
->config_init(dev
);
936 dev
->config_pending
= false;
937 device_check_state(dev
);
942 device_check_ip6segmentrouting(void)
945 bool ip6segmentrouting
= false;
947 avl_for_each_element(&devices
, dev
, avl
)
948 ip6segmentrouting
|= dev
->settings
.ip6segmentrouting
;
950 return ip6segmentrouting
;
953 static enum dev_change_type
954 device_set_config(struct device
*dev
, struct device_type
*type
,
955 struct blob_attr
*attr
)
957 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
958 const struct uci_blob_param_list
*cfg
= type
->config_params
;
960 if (type
!= dev
->type
)
961 return DEV_CONFIG_RECREATE
;
963 if (dev
->type
->reload
)
964 return dev
->type
->reload(dev
, attr
);
966 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
967 return DEV_CONFIG_NO_CHANGE
;
969 if (cfg
== &device_attr_list
) {
970 memset(tb
, 0, sizeof(tb
));
973 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
974 blob_data(attr
), blob_len(attr
));
976 device_init_settings(dev
, tb
);
977 return DEV_CONFIG_RESTART
;
979 return DEV_CONFIG_RECREATE
;
983 device_apply_config(struct device
*dev
, struct device_type
*type
,
984 struct blob_attr
*config
)
986 enum dev_change_type change
;
988 change
= device_set_config(dev
, type
, config
);
990 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
991 change
= DEV_CONFIG_APPLIED
;
995 case DEV_CONFIG_RESTART
:
996 case DEV_CONFIG_APPLIED
:
997 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
998 config
= blob_memdup(config
);
1000 dev
->config
= config
;
1001 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
1004 device_set_present(dev
, false);
1005 if (dev
->active
&& !dev
->external
) {
1006 ret
= dev
->set_state(dev
, false);
1008 ret
= dev
->set_state(dev
, true);
1011 device_set_present(dev
, true);
1014 case DEV_CONFIG_NO_CHANGE
:
1015 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
1017 case DEV_CONFIG_RECREATE
:
1025 device_replace(struct device
*dev
, struct device
*odev
)
1027 struct device_user
*dep
, *tmp
;
1031 device_set_present(odev
, false);
1033 list_for_each_entry_safe(dep
, tmp
, &odev
->users
.list
, list
.list
) {
1034 device_release(dep
);
1035 safe_list_del(&dep
->list
);
1036 __device_add_user(dep
, dev
);
1044 device_reset_config(void)
1048 avl_for_each_element(&devices
, dev
, avl
)
1049 dev
->current_config
= false;
1053 device_reset_old(void)
1055 struct device
*dev
, *tmp
, *ndev
;
1057 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
1058 if (dev
->current_config
|| dev
->default_config
)
1061 if (dev
->type
!= &simple_device_type
)
1064 ndev
= device_create_default(dev
->ifname
, dev
->external
);
1068 device_replace(ndev
, dev
);
1073 device_create(const char *name
, struct device_type
*type
,
1074 struct blob_attr
*config
)
1076 struct device
*odev
= NULL
, *dev
;
1077 enum dev_change_type change
;
1079 odev
= device_find(name
);
1081 odev
->current_config
= true;
1082 change
= device_apply_config(odev
, type
, config
);
1084 case DEV_CONFIG_RECREATE
:
1085 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
1086 device_delete(odev
);
1092 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
1094 config
= blob_memdup(config
);
1098 dev
= type
->create(name
, type
, config
);
1102 dev
->current_config
= true;
1103 dev
->config
= config
;
1105 device_replace(dev
, odev
);
1107 if (!config_init
&& dev
->config_pending
) {
1108 type
->config_init(dev
);
1109 dev
->config_pending
= false;
1112 device_check_state(dev
);
1118 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
1120 struct device_settings st
;
1124 avl_for_each_element(&devices
, dev
, avl
) {
1127 c
= blobmsg_open_table(b
, dev
->ifname
);
1128 device_dump_status(b
, dev
);
1129 blobmsg_close_table(b
, c
);
1135 blobmsg_add_u8(b
, "external", dev
->external
);
1136 blobmsg_add_u8(b
, "present", dev
->present
);
1137 blobmsg_add_string(b
, "type", dev
->type
->name
);
1142 blobmsg_add_u8(b
, "up", !!dev
->active
);
1143 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1144 blobmsg_add_u8(b
, "auth_status", !!dev
->auth_status
);
1146 if (dev
->type
->dump_info
)
1147 dev
->type
->dump_info(dev
, b
);
1149 system_if_dump_info(dev
, b
);
1152 device_merge_settings(dev
, &st
);
1153 if (st
.flags
& DEV_OPT_MTU
)
1154 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1155 if (st
.flags
& DEV_OPT_MTU6
)
1156 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1157 if (st
.flags
& DEV_OPT_MACADDR
)
1158 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1159 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1160 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1161 if (st
.flags
& DEV_OPT_IPV6
)
1162 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1163 if (st
.flags
& DEV_OPT_IP6SEGMENTROUTING
)
1164 blobmsg_add_u8(b
, "ip6segmentrouting", st
.ip6segmentrouting
);
1165 if (st
.flags
& DEV_OPT_PROMISC
)
1166 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1167 if (st
.flags
& DEV_OPT_RPFILTER
)
1168 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1169 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1170 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1171 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1172 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1173 if (st
.flags
& DEV_OPT_MLDVERSION
)
1174 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1175 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1176 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1177 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1179 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1180 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1181 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1183 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1184 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1185 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1186 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1187 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1188 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1189 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1190 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1191 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1192 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1193 if (st
.flags
& DEV_OPT_MULTICAST
)
1194 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1195 if (st
.flags
& DEV_OPT_LEARNING
)
1196 blobmsg_add_u8(b
, "learning", st
.learning
);
1197 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1198 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1199 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1200 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1201 if (st
.flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1202 blobmsg_add_u8(b
, "drop_v4_unicast_in_l2_multicast", st
.drop_v4_unicast_in_l2_multicast
);
1203 if (st
.flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1204 blobmsg_add_u8(b
, "drop_v6_unicast_in_l2_multicast", st
.drop_v6_unicast_in_l2_multicast
);
1205 if (st
.flags
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1206 blobmsg_add_u8(b
, "drop_gratuitous_arp", st
.drop_gratuitous_arp
);
1207 if (st
.flags
& DEV_OPT_DROP_UNSOLICITED_NA
)
1208 blobmsg_add_u8(b
, "drop_unsolicited_na", st
.drop_unsolicited_na
);
1209 if (st
.flags
& DEV_OPT_ARP_ACCEPT
)
1210 blobmsg_add_u8(b
, "arp_accept", st
.arp_accept
);
1211 if (st
.flags
& DEV_OPT_AUTH
)
1212 blobmsg_add_u8(b
, "auth", st
.auth
);
1215 s
= blobmsg_open_table(b
, "statistics");
1216 if (dev
->type
->dump_stats
)
1217 dev
->type
->dump_stats(dev
, b
);
1219 system_if_dump_stats(dev
, b
);
1220 blobmsg_close_table(b
, s
);
1223 static void __init
simple_device_type_init(void)
1225 device_type_add(&simple_device_type
);
1228 void device_hotplug_event(const char *name
, bool add
)
1232 wireless_device_hotplug_event(name
, add
);
1234 dev
= device_find(name
);
1235 if (!dev
|| dev
->type
!= &simple_device_type
)
1238 device_set_present(dev
, add
);