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_release_cb(void *ctx
, struct safe_list
*list
)
477 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
479 if (!dep
->dev
|| !dep
->claimed
)
486 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
488 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
491 /* device might have been removed by an earlier callback */
500 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
504 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
505 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
509 device_fill_default_settings(struct device
*dev
)
511 struct device_settings
*s
= &dev
->settings
;
512 struct ether_addr
*ea
;
514 if (!(s
->flags
& DEV_OPT_MACADDR
)) {
515 ea
= config_get_default_macaddr(dev
->ifname
);
517 memcpy(s
->macaddr
, ea
, 6);
518 s
->flags
|= DEV_OPT_DEFAULT_MACADDR
;
523 int device_claim(struct device_user
*dep
)
525 struct device
*dev
= dep
->dev
;
535 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
536 if (++dev
->active
!= 1)
539 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
540 device_fill_default_settings(dev
);
542 /* Get ifindex for external claimed devices so a valid */
543 /* ifindex is in place avoiding possible race conditions */
544 device_set_ifindex(dev
, system_if_resolve(dev
));
548 system_if_get_settings(dev
, &dev
->orig_settings
);
550 ret
= dev
->set_state(dev
, true);
553 device_broadcast_event(dev
, DEV_EVENT_UP
);
555 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
557 dep
->claimed
= false;
563 void device_release(struct device_user
*dep
)
565 struct device
*dev
= dep
->dev
;
570 dep
->claimed
= false;
572 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
573 assert(dev
->active
>= 0);
578 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
580 dev
->set_state(dev
, false);
585 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
588 int device_check_state(struct device
*dev
)
590 if (!dev
->type
->check_state
)
591 return simple_device_type
.check_state(dev
);
593 return dev
->type
->check_state(dev
);
596 int device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
601 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
602 INIT_SAFE_LIST(&dev
->users
);
603 INIT_SAFE_LIST(&dev
->aliases
);
609 ret
= device_set_ifname(dev
, name
);
615 dev
->set_state
= set_device_state
;
620 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
624 ret
= device_init_virtual(dev
, type
, ifname
);
628 dev
->avl
.key
= dev
->ifname
;
630 ret
= avl_insert(&devices
, &dev
->avl
);
634 system_if_clear_state(dev
);
639 static struct device
*
640 device_create_default(const char *name
, bool external
)
644 if (!external
&& system_if_force_external(name
))
647 D(DEVICE
, "Create simple device '%s'\n", name
);
648 dev
= calloc(1, sizeof(*dev
));
652 dev
->external
= external
;
653 dev
->set_state
= simple_device_set_state
;
655 if (device_init(dev
, &simple_device_type
, name
) < 0) {
661 dev
->default_config
= true;
663 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
665 device_check_state(dev
);
671 device_find(const char *name
)
675 return avl_find_element(&devices
, name
, dev
, avl
);
679 __device_get(const char *name
, int create
, bool check_vlan
)
683 dev
= avl_find_element(&devices
, name
, dev
, avl
);
685 if (!dev
&& check_vlan
&& strchr(name
, '.'))
686 return get_vlan_device_chain(name
, create
);
689 return device_alias_get(name
+ 1);
692 if (create
> 1 && !dev
->external
) {
693 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
694 dev
->external
= true;
695 device_set_present(dev
, true);
703 return device_create_default(name
, create
> 1);
707 device_delete(struct device
*dev
)
712 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
713 avl_delete(&devices
, &dev
->avl
);
717 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
719 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
721 dep
->cb(dep
, DEV_EVENT_REMOVE
);
727 void device_cleanup(struct device
*dev
)
729 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
730 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
731 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
735 static void __device_set_present(struct device
*dev
, bool state
)
737 if (dev
->present
== state
)
740 dev
->present
= state
;
741 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
745 device_refresh_present(struct device
*dev
)
747 bool state
= dev
->sys_present
;
749 if (dev
->disabled
|| dev
->deferred
)
752 __device_set_present(dev
, state
);
756 device_set_auth_status(struct device
*dev
, bool value
)
758 if (dev
->auth_status
== value
)
761 dev
->auth_status
= value
;
765 if (dev
->auth_status
) {
766 device_broadcast_event(dev
, DEV_EVENT_AUTH_UP
);
770 device_broadcast_event(dev
, DEV_EVENT_LINK_DOWN
);
771 if (!dev
->link_active
)
774 device_broadcast_event(dev
, DEV_EVENT_LINK_UP
);
777 void device_set_present(struct device
*dev
, bool state
)
779 if (dev
->sys_present
== state
)
782 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
783 dev
->sys_present
= state
;
784 device_refresh_present(dev
);
786 safe_list_for_each(&dev
->users
, device_release_cb
, NULL
);
789 void device_set_link(struct device
*dev
, bool state
)
791 if (dev
->link_active
== state
)
794 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
796 dev
->link_active
= state
;
798 dev
->auth_status
= false;
799 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
802 void device_set_ifindex(struct device
*dev
, int ifindex
)
804 if (dev
->ifindex
== ifindex
)
807 dev
->ifindex
= ifindex
;
808 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
811 int device_set_ifname(struct device
*dev
, const char *name
)
815 if (!strcmp(dev
->ifname
, name
))
818 if (strlen(name
) > sizeof(dev
->ifname
) - 1)
822 avl_delete(&devices
, &dev
->avl
);
824 strcpy(dev
->ifname
, name
);
827 ret
= avl_insert(&devices
, &dev
->avl
);
830 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
835 static int device_refcount(struct device
*dev
)
837 struct list_head
*list
;
840 list_for_each(list
, &dev
->users
.list
)
843 list_for_each(list
, &dev
->aliases
.list
)
850 __device_add_user(struct device_user
*dep
, struct device
*dev
)
852 struct safe_list
*head
;
857 head
= &dev
->aliases
;
861 safe_list_add(&dep
->list
, head
);
862 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
864 if (dep
->cb
&& dev
->present
) {
865 dep
->cb(dep
, DEV_EVENT_ADD
);
867 dep
->cb(dep
, DEV_EVENT_UP
);
869 if (dev
->link_active
)
870 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
874 void device_add_user(struct device_user
*dep
, struct device
*dev
)
880 device_remove_user(dep
);
885 __device_add_user(dep
, dev
);
889 device_free(struct device
*dev
)
894 dev
->type
->free(dev
);
899 __device_free_unused(struct uloop_timeout
*timeout
)
901 struct device
*dev
, *tmp
;
903 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
904 if (!safe_list_empty(&dev
->users
) ||
905 !safe_list_empty(&dev
->aliases
) ||
913 void device_free_unused(void)
915 static struct uloop_timeout free_timer
= {
916 .cb
= __device_free_unused
,
919 uloop_timeout_set(&free_timer
, 1);
922 void device_remove_user(struct device_user
*dep
)
924 struct device
*dev
= dep
->dev
;
929 dep
->hotplug
= false;
933 safe_list_del(&dep
->list
);
935 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
936 device_free_unused();
940 device_init_pending(void)
942 struct device
*dev
, *tmp
;
944 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
945 if (!dev
->config_pending
)
948 dev
->type
->config_init(dev
);
949 dev
->config_pending
= false;
950 device_check_state(dev
);
955 device_check_ip6segmentrouting(void)
958 bool ip6segmentrouting
= false;
960 avl_for_each_element(&devices
, dev
, avl
)
961 ip6segmentrouting
|= dev
->settings
.ip6segmentrouting
;
963 return ip6segmentrouting
;
966 static enum dev_change_type
967 device_set_config(struct device
*dev
, struct device_type
*type
,
968 struct blob_attr
*attr
)
970 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
971 const struct uci_blob_param_list
*cfg
= type
->config_params
;
973 if (type
!= dev
->type
)
974 return DEV_CONFIG_RECREATE
;
976 if (dev
->type
->reload
)
977 return dev
->type
->reload(dev
, attr
);
979 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
980 return DEV_CONFIG_NO_CHANGE
;
982 if (cfg
== &device_attr_list
) {
983 memset(tb
, 0, sizeof(tb
));
986 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
987 blob_data(attr
), blob_len(attr
));
989 device_init_settings(dev
, tb
);
990 return DEV_CONFIG_RESTART
;
992 return DEV_CONFIG_RECREATE
;
996 device_apply_config(struct device
*dev
, struct device_type
*type
,
997 struct blob_attr
*config
)
999 enum dev_change_type change
;
1001 change
= device_set_config(dev
, type
, config
);
1002 if (dev
->external
) {
1003 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
1004 change
= DEV_CONFIG_APPLIED
;
1008 case DEV_CONFIG_RESTART
:
1009 case DEV_CONFIG_APPLIED
:
1010 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
1011 config
= blob_memdup(config
);
1013 dev
->config
= config
;
1014 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
1017 device_set_present(dev
, false);
1018 if (dev
->active
&& !dev
->external
) {
1019 ret
= dev
->set_state(dev
, false);
1021 ret
= dev
->set_state(dev
, true);
1024 device_set_present(dev
, true);
1027 case DEV_CONFIG_NO_CHANGE
:
1028 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
1030 case DEV_CONFIG_RECREATE
:
1038 device_replace(struct device
*dev
, struct device
*odev
)
1040 struct device_user
*dep
, *tmp
;
1044 device_set_present(odev
, false);
1046 list_for_each_entry_safe(dep
, tmp
, &odev
->users
.list
, list
.list
) {
1047 device_release(dep
);
1048 safe_list_del(&dep
->list
);
1049 __device_add_user(dep
, dev
);
1057 device_reset_config(void)
1061 avl_for_each_element(&devices
, dev
, avl
)
1062 dev
->current_config
= false;
1066 device_reset_old(void)
1068 struct device
*dev
, *tmp
, *ndev
;
1070 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
1071 if (dev
->current_config
|| dev
->default_config
)
1074 if (dev
->type
!= &simple_device_type
)
1077 ndev
= device_create_default(dev
->ifname
, dev
->external
);
1081 device_replace(ndev
, dev
);
1086 device_create(const char *name
, struct device_type
*type
,
1087 struct blob_attr
*config
)
1089 struct device
*odev
= NULL
, *dev
;
1090 enum dev_change_type change
;
1092 odev
= device_find(name
);
1094 odev
->current_config
= true;
1095 change
= device_apply_config(odev
, type
, config
);
1097 case DEV_CONFIG_RECREATE
:
1098 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
1099 device_delete(odev
);
1105 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
1107 config
= blob_memdup(config
);
1111 dev
= type
->create(name
, type
, config
);
1115 dev
->current_config
= true;
1116 dev
->config
= config
;
1118 device_replace(dev
, odev
);
1120 if (!config_init
&& dev
->config_pending
) {
1121 type
->config_init(dev
);
1122 dev
->config_pending
= false;
1125 device_check_state(dev
);
1131 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
1133 struct device_settings st
;
1137 avl_for_each_element(&devices
, dev
, avl
) {
1140 c
= blobmsg_open_table(b
, dev
->ifname
);
1141 device_dump_status(b
, dev
);
1142 blobmsg_close_table(b
, c
);
1148 blobmsg_add_u8(b
, "external", dev
->external
);
1149 blobmsg_add_u8(b
, "present", dev
->present
);
1150 blobmsg_add_string(b
, "type", dev
->type
->name
);
1155 blobmsg_add_u8(b
, "up", !!dev
->active
);
1156 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1157 blobmsg_add_u8(b
, "auth_status", !!dev
->auth_status
);
1159 if (dev
->type
->dump_info
)
1160 dev
->type
->dump_info(dev
, b
);
1162 system_if_dump_info(dev
, b
);
1165 device_merge_settings(dev
, &st
);
1166 if (st
.flags
& DEV_OPT_MTU
)
1167 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1168 if (st
.flags
& DEV_OPT_MTU6
)
1169 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1170 if (st
.flags
& DEV_OPT_MACADDR
)
1171 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1172 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1173 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1174 if (st
.flags
& DEV_OPT_IPV6
)
1175 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1176 if (st
.flags
& DEV_OPT_IP6SEGMENTROUTING
)
1177 blobmsg_add_u8(b
, "ip6segmentrouting", st
.ip6segmentrouting
);
1178 if (st
.flags
& DEV_OPT_PROMISC
)
1179 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1180 if (st
.flags
& DEV_OPT_RPFILTER
)
1181 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1182 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1183 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1184 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1185 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1186 if (st
.flags
& DEV_OPT_MLDVERSION
)
1187 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1188 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1189 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1190 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1192 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1193 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1194 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1196 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1197 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1198 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1199 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1200 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1201 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1202 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1203 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1204 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1205 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1206 if (st
.flags
& DEV_OPT_MULTICAST
)
1207 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1208 if (st
.flags
& DEV_OPT_LEARNING
)
1209 blobmsg_add_u8(b
, "learning", st
.learning
);
1210 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1211 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1212 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1213 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1214 if (st
.flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1215 blobmsg_add_u8(b
, "drop_v4_unicast_in_l2_multicast", st
.drop_v4_unicast_in_l2_multicast
);
1216 if (st
.flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1217 blobmsg_add_u8(b
, "drop_v6_unicast_in_l2_multicast", st
.drop_v6_unicast_in_l2_multicast
);
1218 if (st
.flags
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1219 blobmsg_add_u8(b
, "drop_gratuitous_arp", st
.drop_gratuitous_arp
);
1220 if (st
.flags
& DEV_OPT_DROP_UNSOLICITED_NA
)
1221 blobmsg_add_u8(b
, "drop_unsolicited_na", st
.drop_unsolicited_na
);
1222 if (st
.flags
& DEV_OPT_ARP_ACCEPT
)
1223 blobmsg_add_u8(b
, "arp_accept", st
.arp_accept
);
1224 if (st
.flags
& DEV_OPT_AUTH
)
1225 blobmsg_add_u8(b
, "auth", st
.auth
);
1228 s
= blobmsg_open_table(b
, "statistics");
1229 if (dev
->type
->dump_stats
)
1230 dev
->type
->dump_stats(dev
, b
);
1232 system_if_dump_stats(dev
, b
);
1233 blobmsg_close_table(b
, s
);
1236 static void __init
simple_device_type_init(void)
1238 device_type_add(&simple_device_type
);
1241 void device_hotplug_event(const char *name
, bool add
)
1245 wireless_device_hotplug_event(name
, add
);
1247 dev
= device_find(name
);
1248 if (!dev
|| dev
->type
!= &simple_device_type
)
1251 device_set_present(dev
, add
);