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
},
66 const struct uci_blob_param_list device_attr_list
= {
67 .n_params
= __DEV_ATTR_MAX
,
71 static int __devlock
= 0;
73 int device_type_add(struct device_type
*devtype
)
75 if (device_type_get(devtype
->name
)) {
76 netifd_log_message(L_WARNING
, "Device handler '%s' already exists\n",
81 netifd_log_message(L_NOTICE
, "Added device handler type: %s\n",
84 list_add(&devtype
->list
, &devtypes
);
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 static int device_vlan_len(struct kvlist
*kv
, const void *data
)
114 return sizeof(unsigned int);
117 void device_vlan_update(bool done
)
121 avl_for_each_element(&devices
, dev
, avl
) {
122 if (!dev
->vlans
.update
)
126 if (dev
->vlan_aliases
.get_len
)
127 kvlist_free(&dev
->vlan_aliases
);
129 kvlist_init(&dev
->vlan_aliases
, device_vlan_len
);
130 vlist_update(&dev
->vlans
);
132 vlist_flush(&dev
->vlans
);
134 if (dev
->type
->vlan_update
)
135 dev
->type
->vlan_update(dev
);
140 static int set_device_state(struct device
*dev
, bool state
)
143 /* Get ifindex for all devices being enabled so a valid */
144 /* ifindex is in place avoiding possible race conditions */
145 device_set_ifindex(dev
, system_if_resolve(dev
));
149 system_if_get_settings(dev
, &dev
->orig_settings
);
150 /* Only keep orig settings based on what needs to be set */
151 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
152 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
153 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
158 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
165 simple_device_set_state(struct device
*dev
, bool state
)
170 pdev
= dev
->parent
.dev
;
171 if (state
&& !pdev
) {
172 pdev
= system_if_get_parent(dev
);
174 device_add_user(&dev
->parent
, pdev
);
179 ret
= device_claim(&dev
->parent
);
181 device_release(&dev
->parent
);
186 return set_device_state(dev
, state
);
189 static struct device
*
190 simple_device_create(const char *name
, struct device_type
*devtype
,
191 struct blob_attr
*attr
)
193 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
194 struct device
*dev
= NULL
;
196 /* device type is unused for simple devices */
199 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
, blob_data(attr
), blob_len(attr
));
200 dev
= device_get(name
, true);
204 dev
->set_state
= simple_device_set_state
;
205 device_init_settings(dev
, tb
);
210 static void simple_device_free(struct device
*dev
)
213 device_remove_user(&dev
->parent
);
217 struct device_type simple_device_type
= {
218 .name
= "Network device",
219 .config_params
= &device_attr_list
,
221 .create
= simple_device_create
,
222 .check_state
= system_if_check
,
223 .free
= simple_device_free
,
227 device_merge_settings(struct device
*dev
, struct device_settings
*n
)
229 struct device_settings
*os
= &dev
->orig_settings
;
230 struct device_settings
*s
= &dev
->settings
;
232 memset(n
, 0, sizeof(*n
));
233 n
->mtu
= s
->flags
& DEV_OPT_MTU
? s
->mtu
: os
->mtu
;
234 n
->mtu6
= s
->flags
& DEV_OPT_MTU6
? s
->mtu6
: os
->mtu6
;
235 n
->txqueuelen
= s
->flags
& DEV_OPT_TXQUEUELEN
?
236 s
->txqueuelen
: os
->txqueuelen
;
238 (s
->flags
& (DEV_OPT_MACADDR
|DEV_OPT_DEFAULT_MACADDR
) ? s
->macaddr
: os
->macaddr
),
240 n
->ipv6
= s
->flags
& DEV_OPT_IPV6
? s
->ipv6
: os
->ipv6
;
241 n
->ip6segmentrouting
= s
->flags
& DEV_OPT_IP6SEGMENTROUTING
? s
->ip6segmentrouting
: os
->ip6segmentrouting
;
242 n
->promisc
= s
->flags
& DEV_OPT_PROMISC
? s
->promisc
: os
->promisc
;
243 n
->rpfilter
= s
->flags
& DEV_OPT_RPFILTER
? s
->rpfilter
: os
->rpfilter
;
244 n
->acceptlocal
= s
->flags
& DEV_OPT_ACCEPTLOCAL
? s
->acceptlocal
: os
->acceptlocal
;
245 n
->igmpversion
= s
->flags
& DEV_OPT_IGMPVERSION
? s
->igmpversion
: os
->igmpversion
;
246 n
->mldversion
= s
->flags
& DEV_OPT_MLDVERSION
? s
->mldversion
: os
->mldversion
;
247 n
->neigh4reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
248 s
->neigh4reachabletime
: os
->neigh4reachabletime
;
249 n
->neigh6reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
250 s
->neigh6reachabletime
: os
->neigh6reachabletime
;
251 n
->neigh4gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
252 s
->neigh4gcstaletime
: os
->neigh4gcstaletime
;
253 n
->neigh6gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
254 s
->neigh6gcstaletime
: os
->neigh6gcstaletime
;
255 n
->neigh4locktime
= s
->flags
& DEV_OPT_NEIGHLOCKTIME
?
256 s
->neigh4locktime
: os
->neigh4locktime
;
257 n
->dadtransmits
= s
->flags
& DEV_OPT_DADTRANSMITS
?
258 s
->dadtransmits
: os
->dadtransmits
;
259 n
->multicast
= s
->flags
& DEV_OPT_MULTICAST
?
260 s
->multicast
: os
->multicast
;
261 n
->multicast_to_unicast
= s
->multicast_to_unicast
;
262 n
->multicast_router
= s
->multicast_router
;
263 n
->multicast_fast_leave
= s
->multicast_fast_leave
;
264 n
->learning
= s
->learning
;
265 n
->unicast_flood
= s
->unicast_flood
;
266 n
->sendredirects
= s
->flags
& DEV_OPT_SENDREDIRECTS
?
267 s
->sendredirects
: os
->sendredirects
;
268 n
->drop_v4_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
?
269 s
->drop_v4_unicast_in_l2_multicast
: os
->drop_v4_unicast_in_l2_multicast
;
270 n
->drop_v6_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
?
271 s
->drop_v6_unicast_in_l2_multicast
: os
->drop_v6_unicast_in_l2_multicast
;
272 n
->drop_gratuitous_arp
= s
->flags
& DEV_OPT_DROP_GRATUITOUS_ARP
?
273 s
->drop_gratuitous_arp
: os
->drop_gratuitous_arp
;
274 n
->drop_unsolicited_na
= s
->flags
& DEV_OPT_DROP_UNSOLICITED_NA
?
275 s
->drop_unsolicited_na
: os
->drop_unsolicited_na
;
276 n
->arp_accept
= s
->flags
& DEV_OPT_ARP_ACCEPT
?
277 s
->arp_accept
: os
->arp_accept
;
278 n
->auth
= s
->flags
& DEV_OPT_AUTH
? s
->auth
: os
->auth
;
279 n
->flags
= s
->flags
| os
->flags
| os
->valid_flags
;
283 device_init_settings(struct device
*dev
, struct blob_attr
**tb
)
285 struct device_settings
*s
= &dev
->settings
;
286 struct blob_attr
*cur
;
287 struct ether_addr
*ea
;
288 bool disabled
= false;
291 if ((cur
= tb
[DEV_ATTR_ENABLED
]))
292 disabled
= !blobmsg_get_bool(cur
);
294 if ((cur
= tb
[DEV_ATTR_MTU
]) && blobmsg_get_u32(cur
) >= 68) {
295 s
->mtu
= blobmsg_get_u32(cur
);
296 s
->flags
|= DEV_OPT_MTU
;
299 if ((cur
= tb
[DEV_ATTR_MTU6
]) && blobmsg_get_u32(cur
) >= 1280) {
300 s
->mtu6
= blobmsg_get_u32(cur
);
301 s
->flags
|= DEV_OPT_MTU6
;
304 if ((cur
= tb
[DEV_ATTR_TXQUEUELEN
])) {
305 s
->txqueuelen
= blobmsg_get_u32(cur
);
306 s
->flags
|= DEV_OPT_TXQUEUELEN
;
309 if ((cur
= tb
[DEV_ATTR_MACADDR
])) {
310 ea
= ether_aton(blobmsg_data(cur
));
312 memcpy(s
->macaddr
, ea
, 6);
313 s
->flags
|= DEV_OPT_MACADDR
;
317 if ((cur
= tb
[DEV_ATTR_IPV6
])) {
318 s
->ipv6
= blobmsg_get_bool(cur
);
319 s
->flags
|= DEV_OPT_IPV6
;
322 if ((cur
= tb
[DEV_ATTR_IP6SEGMENTROUTING
])) {
323 s
->ip6segmentrouting
= blobmsg_get_bool(cur
);
324 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
327 if ((cur
= tb
[DEV_ATTR_PROMISC
])) {
328 s
->promisc
= blobmsg_get_bool(cur
);
329 s
->flags
|= DEV_OPT_PROMISC
;
332 if ((cur
= tb
[DEV_ATTR_RPFILTER
])) {
333 if (system_resolve_rpfilter(blobmsg_data(cur
), &s
->rpfilter
))
334 s
->flags
|= DEV_OPT_RPFILTER
;
336 DPRINTF("Failed to resolve rpfilter: %s\n", (char *) blobmsg_data(cur
));
339 if ((cur
= tb
[DEV_ATTR_ACCEPTLOCAL
])) {
340 s
->acceptlocal
= blobmsg_get_bool(cur
);
341 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
344 if ((cur
= tb
[DEV_ATTR_IGMPVERSION
])) {
345 s
->igmpversion
= blobmsg_get_u32(cur
);
346 if (s
->igmpversion
>= 1 && s
->igmpversion
<= 3)
347 s
->flags
|= DEV_OPT_IGMPVERSION
;
349 DPRINTF("Failed to resolve igmpversion: %d\n", blobmsg_get_u32(cur
));
352 if ((cur
= tb
[DEV_ATTR_MLDVERSION
])) {
353 s
->mldversion
= blobmsg_get_u32(cur
);
354 if (s
->mldversion
>= 1 && s
->mldversion
<= 2)
355 s
->flags
|= DEV_OPT_MLDVERSION
;
357 DPRINTF("Failed to resolve mldversion: %d\n", blobmsg_get_u32(cur
));
360 if ((cur
= tb
[DEV_ATTR_NEIGHREACHABLETIME
])) {
361 s
->neigh6reachabletime
= s
->neigh4reachabletime
= blobmsg_get_u32(cur
);
362 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
365 if ((cur
= tb
[DEV_ATTR_NEIGHGCSTALETIME
])) {
366 s
->neigh6gcstaletime
= s
->neigh4gcstaletime
= blobmsg_get_u32(cur
);
367 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
370 if ((cur
= tb
[DEV_ATTR_NEIGHLOCKTIME
])) {
371 s
->neigh4locktime
= blobmsg_get_u32(cur
);
372 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
375 if ((cur
= tb
[DEV_ATTR_DADTRANSMITS
])) {
376 s
->dadtransmits
= blobmsg_get_u32(cur
);
377 s
->flags
|= DEV_OPT_DADTRANSMITS
;
380 if ((cur
= tb
[DEV_ATTR_MULTICAST_TO_UNICAST
])) {
381 s
->multicast_to_unicast
= blobmsg_get_bool(cur
);
382 s
->flags
|= DEV_OPT_MULTICAST_TO_UNICAST
;
385 if ((cur
= tb
[DEV_ATTR_MULTICAST_ROUTER
])) {
386 s
->multicast_router
= blobmsg_get_u32(cur
);
387 if (s
->multicast_router
<= 2)
388 s
->flags
|= DEV_OPT_MULTICAST_ROUTER
;
390 DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur
));
393 if ((cur
= tb
[DEV_ATTR_MULTICAST_FAST_LEAVE
])) {
394 s
->multicast_fast_leave
= blobmsg_get_bool(cur
);
395 s
->flags
|= DEV_OPT_MULTICAST_FAST_LEAVE
;
398 if ((cur
= tb
[DEV_ATTR_MULTICAST
])) {
399 s
->multicast
= blobmsg_get_bool(cur
);
400 s
->flags
|= DEV_OPT_MULTICAST
;
403 if ((cur
= tb
[DEV_ATTR_LEARNING
])) {
404 s
->learning
= blobmsg_get_bool(cur
);
405 s
->flags
|= DEV_OPT_LEARNING
;
408 if ((cur
= tb
[DEV_ATTR_UNICAST_FLOOD
])) {
409 s
->unicast_flood
= blobmsg_get_bool(cur
);
410 s
->flags
|= DEV_OPT_UNICAST_FLOOD
;
413 if ((cur
= tb
[DEV_ATTR_SENDREDIRECTS
])) {
414 s
->sendredirects
= blobmsg_get_bool(cur
);
415 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
418 if ((cur
= tb
[DEV_ATTR_ISOLATE
])) {
419 s
->isolate
= blobmsg_get_bool(cur
);
420 s
->flags
|= DEV_OPT_ISOLATE
;
423 if ((cur
= tb
[DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST
])) {
424 s
->drop_v4_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
425 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
428 if ((cur
= tb
[DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST
])) {
429 s
->drop_v6_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
430 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
433 if ((cur
= tb
[DEV_ATTR_DROP_GRATUITOUS_ARP
])) {
434 s
->drop_gratuitous_arp
= blobmsg_get_bool(cur
);
435 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
438 if ((cur
= tb
[DEV_ATTR_DROP_UNSOLICITED_NA
])) {
439 s
->drop_unsolicited_na
= blobmsg_get_bool(cur
);
440 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
443 if ((cur
= tb
[DEV_ATTR_ARP_ACCEPT
])) {
444 s
->arp_accept
= blobmsg_get_bool(cur
);
445 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
448 if ((cur
= tb
[DEV_ATTR_AUTH
])) {
449 s
->auth
= blobmsg_get_bool(cur
);
450 s
->flags
|= DEV_OPT_AUTH
;
453 device_set_disabled(dev
, disabled
);
456 static void __init
dev_init(void)
458 avl_init(&devices
, avl_strcmp
, true, NULL
);
461 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
463 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
466 /* device might have been removed by an earlier callback */
475 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
479 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
480 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
484 device_fill_default_settings(struct device
*dev
)
486 struct device_settings
*s
= &dev
->settings
;
487 struct ether_addr
*ea
;
489 if (!(s
->flags
& DEV_OPT_MACADDR
)) {
490 ea
= config_get_default_macaddr(dev
->ifname
);
492 memcpy(s
->macaddr
, ea
, 6);
493 s
->flags
|= DEV_OPT_DEFAULT_MACADDR
;
498 int device_claim(struct device_user
*dep
)
500 struct device
*dev
= dep
->dev
;
510 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
511 if (++dev
->active
!= 1)
514 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
515 device_fill_default_settings(dev
);
517 /* Get ifindex for external claimed devices so a valid */
518 /* ifindex is in place avoiding possible race conditions */
519 device_set_ifindex(dev
, system_if_resolve(dev
));
523 system_if_get_settings(dev
, &dev
->orig_settings
);
525 ret
= dev
->set_state(dev
, true);
528 device_broadcast_event(dev
, DEV_EVENT_UP
);
530 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
532 dep
->claimed
= false;
538 void device_release(struct device_user
*dep
)
540 struct device
*dev
= dep
->dev
;
545 dep
->claimed
= false;
547 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
548 assert(dev
->active
>= 0);
553 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
555 dev
->set_state(dev
, false);
560 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
563 int device_check_state(struct device
*dev
)
565 if (!dev
->type
->check_state
)
566 return simple_device_type
.check_state(dev
);
568 return dev
->type
->check_state(dev
);
571 int device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
576 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
577 INIT_SAFE_LIST(&dev
->users
);
578 INIT_SAFE_LIST(&dev
->aliases
);
584 ret
= device_set_ifname(dev
, name
);
590 dev
->set_state
= set_device_state
;
595 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
599 ret
= device_init_virtual(dev
, type
, ifname
);
603 dev
->avl
.key
= dev
->ifname
;
605 ret
= avl_insert(&devices
, &dev
->avl
);
609 system_if_clear_state(dev
);
614 static struct device
*
615 device_create_default(const char *name
, bool external
)
619 if (!external
&& system_if_force_external(name
))
622 D(DEVICE
, "Create simple device '%s'\n", name
);
623 dev
= calloc(1, sizeof(*dev
));
627 dev
->external
= external
;
628 dev
->set_state
= simple_device_set_state
;
630 if (device_init(dev
, &simple_device_type
, name
) < 0) {
636 dev
->default_config
= true;
638 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
640 device_check_state(dev
);
646 device_find(const char *name
)
650 return avl_find_element(&devices
, name
, dev
, avl
);
654 __device_get(const char *name
, int create
, bool check_vlan
)
658 dev
= avl_find_element(&devices
, name
, dev
, avl
);
660 if (!dev
&& check_vlan
&& strchr(name
, '.'))
661 return get_vlan_device_chain(name
, create
);
664 return device_alias_get(name
+ 1);
667 if (create
> 1 && !dev
->external
) {
668 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
669 dev
->external
= true;
670 device_set_present(dev
, true);
678 return device_create_default(name
, create
> 1);
682 device_delete(struct device
*dev
)
687 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
688 avl_delete(&devices
, &dev
->avl
);
692 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
694 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
696 dep
->cb(dep
, DEV_EVENT_REMOVE
);
702 void device_cleanup(struct device
*dev
)
704 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
705 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
706 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
710 static void __device_set_present(struct device
*dev
, bool state
)
712 if (dev
->present
== state
)
715 dev
->present
= state
;
716 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
720 device_refresh_present(struct device
*dev
)
722 bool state
= dev
->sys_present
;
724 if (dev
->disabled
|| dev
->deferred
)
727 __device_set_present(dev
, state
);
731 device_set_auth_status(struct device
*dev
, bool value
)
733 if (dev
->auth_status
== value
)
736 dev
->auth_status
= value
;
740 if (dev
->auth_status
) {
741 device_broadcast_event(dev
, DEV_EVENT_AUTH_UP
);
745 device_broadcast_event(dev
, DEV_EVENT_LINK_DOWN
);
746 if (!dev
->link_active
)
749 device_broadcast_event(dev
, DEV_EVENT_LINK_UP
);
752 void device_set_present(struct device
*dev
, bool state
)
754 if (dev
->sys_present
== state
)
757 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
758 dev
->sys_present
= state
;
759 device_refresh_present(dev
);
762 void device_set_link(struct device
*dev
, bool state
)
764 if (dev
->link_active
== state
)
767 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
769 dev
->link_active
= state
;
771 dev
->auth_status
= false;
772 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
775 void device_set_ifindex(struct device
*dev
, int ifindex
)
777 if (dev
->ifindex
== ifindex
)
780 dev
->ifindex
= ifindex
;
781 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
784 int device_set_ifname(struct device
*dev
, const char *name
)
788 if (!strcmp(dev
->ifname
, name
))
791 if (strlen(name
) > sizeof(dev
->ifname
) - 1)
795 avl_delete(&devices
, &dev
->avl
);
797 strcpy(dev
->ifname
, name
);
800 ret
= avl_insert(&devices
, &dev
->avl
);
803 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
808 static int device_refcount(struct device
*dev
)
810 struct list_head
*list
;
813 list_for_each(list
, &dev
->users
.list
)
816 list_for_each(list
, &dev
->aliases
.list
)
823 __device_add_user(struct device_user
*dep
, struct device
*dev
)
825 struct safe_list
*head
;
830 head
= &dev
->aliases
;
834 safe_list_add(&dep
->list
, head
);
835 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
837 if (dep
->cb
&& dev
->present
) {
838 dep
->cb(dep
, DEV_EVENT_ADD
);
840 dep
->cb(dep
, DEV_EVENT_UP
);
842 if (dev
->link_active
)
843 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
847 void device_add_user(struct device_user
*dep
, struct device
*dev
)
853 device_remove_user(dep
);
858 __device_add_user(dep
, dev
);
862 device_free(struct device
*dev
)
867 dev
->type
->free(dev
);
872 __device_free_unused(struct device
*dev
)
874 if (!safe_list_empty(&dev
->users
) ||
875 !safe_list_empty(&dev
->aliases
) ||
876 dev
->current_config
|| __devlock
)
882 void device_remove_user(struct device_user
*dep
)
884 struct device
*dev
= dep
->dev
;
889 dep
->hotplug
= false;
893 safe_list_del(&dep
->list
);
895 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
896 __device_free_unused(dev
);
900 device_free_unused(struct device
*dev
)
905 return __device_free_unused(dev
);
907 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
)
908 __device_free_unused(dev
);
912 device_init_pending(void)
914 struct device
*dev
, *tmp
;
916 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
917 if (!dev
->config_pending
)
920 dev
->type
->config_init(dev
);
921 dev
->config_pending
= false;
922 device_check_state(dev
);
927 device_check_ip6segmentrouting(void)
930 bool ip6segmentrouting
= false;
932 avl_for_each_element(&devices
, dev
, avl
)
933 ip6segmentrouting
|= dev
->settings
.ip6segmentrouting
;
935 return ip6segmentrouting
;
938 static enum dev_change_type
939 device_set_config(struct device
*dev
, struct device_type
*type
,
940 struct blob_attr
*attr
)
942 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
943 const struct uci_blob_param_list
*cfg
= type
->config_params
;
945 if (type
!= dev
->type
)
946 return DEV_CONFIG_RECREATE
;
948 if (dev
->type
->reload
)
949 return dev
->type
->reload(dev
, attr
);
951 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
952 return DEV_CONFIG_NO_CHANGE
;
954 if (cfg
== &device_attr_list
) {
955 memset(tb
, 0, sizeof(tb
));
958 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
959 blob_data(attr
), blob_len(attr
));
961 device_init_settings(dev
, tb
);
962 return DEV_CONFIG_RESTART
;
964 return DEV_CONFIG_RECREATE
;
968 device_apply_config(struct device
*dev
, struct device_type
*type
,
969 struct blob_attr
*config
)
971 enum dev_change_type change
;
973 change
= device_set_config(dev
, type
, config
);
975 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
976 change
= DEV_CONFIG_APPLIED
;
980 case DEV_CONFIG_RESTART
:
981 case DEV_CONFIG_APPLIED
:
982 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
983 config
= blob_memdup(config
);
985 dev
->config
= config
;
986 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
989 device_set_present(dev
, false);
990 if (dev
->active
&& !dev
->external
) {
991 ret
= dev
->set_state(dev
, false);
993 ret
= dev
->set_state(dev
, true);
996 device_set_present(dev
, true);
999 case DEV_CONFIG_NO_CHANGE
:
1000 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
1002 case DEV_CONFIG_RECREATE
:
1010 device_replace(struct device
*dev
, struct device
*odev
)
1012 struct device_user
*dep
, *tmp
;
1016 device_set_present(odev
, false);
1018 list_for_each_entry_safe(dep
, tmp
, &odev
->users
.list
, list
.list
) {
1019 device_release(dep
);
1020 safe_list_del(&dep
->list
);
1021 __device_add_user(dep
, dev
);
1029 device_reset_config(void)
1033 avl_for_each_element(&devices
, dev
, avl
)
1034 dev
->current_config
= false;
1038 device_reset_old(void)
1040 struct device
*dev
, *tmp
, *ndev
;
1042 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
1043 if (dev
->current_config
|| dev
->default_config
)
1046 if (dev
->type
!= &simple_device_type
)
1049 ndev
= device_create_default(dev
->ifname
, dev
->external
);
1053 device_replace(ndev
, dev
);
1058 device_create(const char *name
, struct device_type
*type
,
1059 struct blob_attr
*config
)
1061 struct device
*odev
= NULL
, *dev
;
1062 enum dev_change_type change
;
1064 odev
= device_find(name
);
1066 odev
->current_config
= true;
1067 change
= device_apply_config(odev
, type
, config
);
1069 case DEV_CONFIG_RECREATE
:
1070 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
1071 device_delete(odev
);
1077 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
1079 config
= blob_memdup(config
);
1083 dev
= type
->create(name
, type
, config
);
1087 dev
->current_config
= true;
1088 dev
->config
= config
;
1090 device_replace(dev
, odev
);
1092 if (!config_init
&& dev
->config_pending
) {
1093 type
->config_init(dev
);
1094 dev
->config_pending
= false;
1097 device_check_state(dev
);
1103 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
1105 struct device_settings st
;
1109 avl_for_each_element(&devices
, dev
, avl
) {
1112 c
= blobmsg_open_table(b
, dev
->ifname
);
1113 device_dump_status(b
, dev
);
1114 blobmsg_close_table(b
, c
);
1120 blobmsg_add_u8(b
, "external", dev
->external
);
1121 blobmsg_add_u8(b
, "present", dev
->present
);
1122 blobmsg_add_string(b
, "type", dev
->type
->name
);
1127 blobmsg_add_u8(b
, "up", !!dev
->active
);
1128 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1129 blobmsg_add_u8(b
, "auth_status", !!dev
->auth_status
);
1131 if (dev
->type
->dump_info
)
1132 dev
->type
->dump_info(dev
, b
);
1134 system_if_dump_info(dev
, b
);
1137 device_merge_settings(dev
, &st
);
1138 if (st
.flags
& DEV_OPT_MTU
)
1139 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1140 if (st
.flags
& DEV_OPT_MTU6
)
1141 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1142 if (st
.flags
& DEV_OPT_MACADDR
)
1143 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1144 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1145 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1146 if (st
.flags
& DEV_OPT_IPV6
)
1147 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1148 if (st
.flags
& DEV_OPT_IP6SEGMENTROUTING
)
1149 blobmsg_add_u8(b
, "ip6segmentrouting", st
.ip6segmentrouting
);
1150 if (st
.flags
& DEV_OPT_PROMISC
)
1151 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1152 if (st
.flags
& DEV_OPT_RPFILTER
)
1153 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1154 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1155 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1156 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1157 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1158 if (st
.flags
& DEV_OPT_MLDVERSION
)
1159 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1160 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1161 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1162 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1164 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1165 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1166 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1168 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1169 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1170 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1171 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1172 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1173 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1174 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1175 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1176 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1177 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1178 if (st
.flags
& DEV_OPT_MULTICAST
)
1179 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1180 if (st
.flags
& DEV_OPT_LEARNING
)
1181 blobmsg_add_u8(b
, "learning", st
.learning
);
1182 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1183 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1184 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1185 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1186 if (st
.flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1187 blobmsg_add_u8(b
, "drop_v4_unicast_in_l2_multicast", st
.drop_v4_unicast_in_l2_multicast
);
1188 if (st
.flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1189 blobmsg_add_u8(b
, "drop_v6_unicast_in_l2_multicast", st
.drop_v6_unicast_in_l2_multicast
);
1190 if (st
.flags
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1191 blobmsg_add_u8(b
, "drop_gratuitous_arp", st
.drop_gratuitous_arp
);
1192 if (st
.flags
& DEV_OPT_DROP_UNSOLICITED_NA
)
1193 blobmsg_add_u8(b
, "drop_unsolicited_na", st
.drop_unsolicited_na
);
1194 if (st
.flags
& DEV_OPT_ARP_ACCEPT
)
1195 blobmsg_add_u8(b
, "arp_accept", st
.arp_accept
);
1196 if (st
.flags
& DEV_OPT_AUTH
)
1197 blobmsg_add_u8(b
, "auth", st
.auth
);
1200 s
= blobmsg_open_table(b
, "statistics");
1201 if (dev
->type
->dump_stats
)
1202 dev
->type
->dump_stats(dev
, b
);
1204 system_if_dump_stats(dev
, b
);
1205 blobmsg_close_table(b
, s
);
1208 static void __init
simple_device_type_init(void)
1210 device_type_add(&simple_device_type
);
1213 void device_hotplug_event(const char *name
, bool add
)
1217 wireless_device_hotplug_event(name
, add
);
1219 dev
= device_find(name
);
1220 if (!dev
|| dev
->type
!= &simple_device_type
)
1223 device_set_present(dev
, add
);