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
},
66 [DEV_ATTR_VLAN
] = { .name
= "vlan", .type
= BLOBMSG_TYPE_ARRAY
},
69 const struct uci_blob_param_list device_attr_list
= {
70 .n_params
= __DEV_ATTR_MAX
,
74 static int __devlock
= 0;
76 int device_type_add(struct device_type
*devtype
)
78 if (device_type_get(devtype
->name
)) {
79 netifd_log_message(L_WARNING
, "Device handler '%s' already exists\n",
84 netifd_log_message(L_NOTICE
, "Added device handler type: %s\n",
87 list_add(&devtype
->list
, &devtypes
);
92 device_type_get(const char *tname
)
94 struct device_type
*cur
;
96 list_for_each_entry(cur
, &devtypes
, list
)
97 if (!strcmp(cur
->name
, tname
))
103 static int device_vlan_len(struct kvlist
*kv
, const void *data
)
105 return sizeof(unsigned int);
108 void device_vlan_update(bool done
)
112 avl_for_each_element(&devices
, dev
, avl
) {
113 if (!dev
->vlans
.update
)
117 if (dev
->vlan_aliases
.get_len
)
118 kvlist_free(&dev
->vlan_aliases
);
120 kvlist_init(&dev
->vlan_aliases
, device_vlan_len
);
121 vlist_update(&dev
->vlans
);
123 vlist_flush(&dev
->vlans
);
125 if (dev
->type
->vlan_update
)
126 dev
->type
->vlan_update(dev
);
131 void device_stp_init(void)
135 avl_for_each_element(&devices
, dev
, avl
) {
136 if (!dev
->type
->stp_init
)
139 dev
->type
->stp_init(dev
);
143 static int set_device_state(struct device
*dev
, bool state
)
146 /* Get ifindex for all devices being enabled so a valid */
147 /* ifindex is in place avoiding possible race conditions */
148 device_set_ifindex(dev
, system_if_resolve(dev
));
152 system_if_get_settings(dev
, &dev
->orig_settings
);
153 /* Only keep orig settings based on what needs to be set */
154 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
155 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
156 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
161 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
168 simple_device_set_state(struct device
*dev
, bool state
)
173 pdev
= dev
->parent
.dev
;
174 if (state
&& !pdev
) {
175 pdev
= system_if_get_parent(dev
);
177 device_add_user(&dev
->parent
, pdev
);
182 ret
= device_claim(&dev
->parent
);
184 device_release(&dev
->parent
);
189 return set_device_state(dev
, state
);
192 static struct device
*
193 simple_device_create(const char *name
, struct device_type
*devtype
,
194 struct blob_attr
*attr
)
196 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
197 struct device
*dev
= NULL
;
199 /* device type is unused for simple devices */
202 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
, blob_data(attr
), blob_len(attr
));
203 dev
= device_get(name
, true);
207 dev
->set_state
= simple_device_set_state
;
208 device_init_settings(dev
, tb
);
213 static void simple_device_free(struct device
*dev
)
216 device_remove_user(&dev
->parent
);
220 struct device_type simple_device_type
= {
221 .name
= "Network device",
222 .config_params
= &device_attr_list
,
224 .create
= simple_device_create
,
225 .check_state
= system_if_check
,
226 .free
= simple_device_free
,
230 device_merge_settings(struct device
*dev
, struct device_settings
*n
)
232 struct device_settings
*os
= &dev
->orig_settings
;
233 struct device_settings
*s
= &dev
->settings
;
235 memset(n
, 0, sizeof(*n
));
236 n
->mtu
= s
->flags
& DEV_OPT_MTU
? s
->mtu
: os
->mtu
;
237 n
->mtu6
= s
->flags
& DEV_OPT_MTU6
? s
->mtu6
: os
->mtu6
;
238 n
->txqueuelen
= s
->flags
& DEV_OPT_TXQUEUELEN
?
239 s
->txqueuelen
: os
->txqueuelen
;
241 (s
->flags
& (DEV_OPT_MACADDR
|DEV_OPT_DEFAULT_MACADDR
) ? s
->macaddr
: os
->macaddr
),
243 n
->ipv6
= s
->flags
& DEV_OPT_IPV6
? s
->ipv6
: os
->ipv6
;
244 n
->ip6segmentrouting
= s
->flags
& DEV_OPT_IP6SEGMENTROUTING
? s
->ip6segmentrouting
: os
->ip6segmentrouting
;
245 n
->promisc
= s
->flags
& DEV_OPT_PROMISC
? s
->promisc
: os
->promisc
;
246 n
->rpfilter
= s
->flags
& DEV_OPT_RPFILTER
? s
->rpfilter
: os
->rpfilter
;
247 n
->acceptlocal
= s
->flags
& DEV_OPT_ACCEPTLOCAL
? s
->acceptlocal
: os
->acceptlocal
;
248 n
->igmpversion
= s
->flags
& DEV_OPT_IGMPVERSION
? s
->igmpversion
: os
->igmpversion
;
249 n
->mldversion
= s
->flags
& DEV_OPT_MLDVERSION
? s
->mldversion
: os
->mldversion
;
250 n
->neigh4reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
251 s
->neigh4reachabletime
: os
->neigh4reachabletime
;
252 n
->neigh6reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
253 s
->neigh6reachabletime
: os
->neigh6reachabletime
;
254 n
->neigh4gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
255 s
->neigh4gcstaletime
: os
->neigh4gcstaletime
;
256 n
->neigh6gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
257 s
->neigh6gcstaletime
: os
->neigh6gcstaletime
;
258 n
->neigh4locktime
= s
->flags
& DEV_OPT_NEIGHLOCKTIME
?
259 s
->neigh4locktime
: os
->neigh4locktime
;
260 n
->dadtransmits
= s
->flags
& DEV_OPT_DADTRANSMITS
?
261 s
->dadtransmits
: os
->dadtransmits
;
262 n
->multicast
= s
->flags
& DEV_OPT_MULTICAST
?
263 s
->multicast
: os
->multicast
;
264 n
->multicast_to_unicast
= s
->multicast_to_unicast
;
265 n
->multicast_router
= s
->multicast_router
;
266 n
->multicast_fast_leave
= s
->multicast_fast_leave
;
267 n
->learning
= s
->learning
;
268 n
->unicast_flood
= s
->unicast_flood
;
269 n
->sendredirects
= s
->flags
& DEV_OPT_SENDREDIRECTS
?
270 s
->sendredirects
: os
->sendredirects
;
271 n
->drop_v4_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
?
272 s
->drop_v4_unicast_in_l2_multicast
: os
->drop_v4_unicast_in_l2_multicast
;
273 n
->drop_v6_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
?
274 s
->drop_v6_unicast_in_l2_multicast
: os
->drop_v6_unicast_in_l2_multicast
;
275 n
->drop_gratuitous_arp
= s
->flags
& DEV_OPT_DROP_GRATUITOUS_ARP
?
276 s
->drop_gratuitous_arp
: os
->drop_gratuitous_arp
;
277 n
->drop_unsolicited_na
= s
->flags
& DEV_OPT_DROP_UNSOLICITED_NA
?
278 s
->drop_unsolicited_na
: os
->drop_unsolicited_na
;
279 n
->arp_accept
= s
->flags
& DEV_OPT_ARP_ACCEPT
?
280 s
->arp_accept
: os
->arp_accept
;
281 n
->auth
= s
->flags
& DEV_OPT_AUTH
? s
->auth
: os
->auth
;
282 n
->speed
= s
->flags
& DEV_OPT_SPEED
? s
->speed
: os
->speed
;
283 n
->duplex
= s
->flags
& DEV_OPT_DUPLEX
? s
->duplex
: os
->duplex
;
284 n
->flags
= s
->flags
| os
->flags
| os
->valid_flags
;
288 device_add_extra_vlan(struct device
*dev
, const char *val
)
290 unsigned long cur_start
, cur_end
;
293 cur_start
= strtoul(val
, &sep
, 0);
297 cur_end
= strtoul(sep
+ 1, &sep
, 0);
298 if (*sep
|| cur_end
< cur_start
)
301 dev
->extra_vlan
[dev
->n_extra_vlan
].start
= cur_start
;
302 dev
->extra_vlan
[dev
->n_extra_vlan
].end
= cur_end
;
307 device_set_extra_vlans(struct device
*dev
, struct blob_attr
*data
)
309 struct blob_attr
*cur
;
313 dev
->n_extra_vlan
= 0;
317 n_vlans
= blobmsg_check_array(data
, BLOBMSG_TYPE_STRING
);
321 dev
->extra_vlan
= realloc(dev
->extra_vlan
, n_vlans
* sizeof(*dev
->extra_vlan
));
322 blobmsg_for_each_attr(cur
, data
, rem
)
323 device_add_extra_vlan(dev
, blobmsg_get_string(cur
));
327 device_init_settings(struct device
*dev
, struct blob_attr
**tb
)
329 struct device_settings
*s
= &dev
->settings
;
330 struct blob_attr
*cur
;
331 struct ether_addr
*ea
;
332 bool disabled
= false;
335 if ((cur
= tb
[DEV_ATTR_ENABLED
]))
336 disabled
= !blobmsg_get_bool(cur
);
338 if ((cur
= tb
[DEV_ATTR_MTU
]) && blobmsg_get_u32(cur
) >= 68) {
339 s
->mtu
= blobmsg_get_u32(cur
);
340 s
->flags
|= DEV_OPT_MTU
;
343 if ((cur
= tb
[DEV_ATTR_MTU6
]) && blobmsg_get_u32(cur
) >= 1280) {
344 s
->mtu6
= blobmsg_get_u32(cur
);
345 s
->flags
|= DEV_OPT_MTU6
;
348 if ((cur
= tb
[DEV_ATTR_TXQUEUELEN
])) {
349 s
->txqueuelen
= blobmsg_get_u32(cur
);
350 s
->flags
|= DEV_OPT_TXQUEUELEN
;
353 if ((cur
= tb
[DEV_ATTR_MACADDR
])) {
354 ea
= ether_aton(blobmsg_data(cur
));
356 memcpy(s
->macaddr
, ea
, 6);
357 s
->flags
|= DEV_OPT_MACADDR
;
361 if ((cur
= tb
[DEV_ATTR_IPV6
])) {
362 s
->ipv6
= blobmsg_get_bool(cur
);
363 s
->flags
|= DEV_OPT_IPV6
;
366 if ((cur
= tb
[DEV_ATTR_IP6SEGMENTROUTING
])) {
367 s
->ip6segmentrouting
= blobmsg_get_bool(cur
);
368 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
371 if ((cur
= tb
[DEV_ATTR_PROMISC
])) {
372 s
->promisc
= blobmsg_get_bool(cur
);
373 s
->flags
|= DEV_OPT_PROMISC
;
376 if ((cur
= tb
[DEV_ATTR_RPFILTER
])) {
377 if (system_resolve_rpfilter(blobmsg_data(cur
), &s
->rpfilter
))
378 s
->flags
|= DEV_OPT_RPFILTER
;
380 DPRINTF("Failed to resolve rpfilter: %s\n", (char *) blobmsg_data(cur
));
383 if ((cur
= tb
[DEV_ATTR_ACCEPTLOCAL
])) {
384 s
->acceptlocal
= blobmsg_get_bool(cur
);
385 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
388 if ((cur
= tb
[DEV_ATTR_IGMPVERSION
])) {
389 s
->igmpversion
= blobmsg_get_u32(cur
);
390 if (s
->igmpversion
>= 1 && s
->igmpversion
<= 3)
391 s
->flags
|= DEV_OPT_IGMPVERSION
;
393 DPRINTF("Failed to resolve igmpversion: %d\n", blobmsg_get_u32(cur
));
396 if ((cur
= tb
[DEV_ATTR_MLDVERSION
])) {
397 s
->mldversion
= blobmsg_get_u32(cur
);
398 if (s
->mldversion
>= 1 && s
->mldversion
<= 2)
399 s
->flags
|= DEV_OPT_MLDVERSION
;
401 DPRINTF("Failed to resolve mldversion: %d\n", blobmsg_get_u32(cur
));
404 if ((cur
= tb
[DEV_ATTR_NEIGHREACHABLETIME
])) {
405 s
->neigh6reachabletime
= s
->neigh4reachabletime
= blobmsg_get_u32(cur
);
406 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
409 if ((cur
= tb
[DEV_ATTR_NEIGHGCSTALETIME
])) {
410 s
->neigh6gcstaletime
= s
->neigh4gcstaletime
= blobmsg_get_u32(cur
);
411 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
414 if ((cur
= tb
[DEV_ATTR_NEIGHLOCKTIME
])) {
415 s
->neigh4locktime
= blobmsg_get_u32(cur
);
416 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
419 if ((cur
= tb
[DEV_ATTR_DADTRANSMITS
])) {
420 s
->dadtransmits
= blobmsg_get_u32(cur
);
421 s
->flags
|= DEV_OPT_DADTRANSMITS
;
424 if ((cur
= tb
[DEV_ATTR_MULTICAST_TO_UNICAST
])) {
425 s
->multicast_to_unicast
= blobmsg_get_bool(cur
);
426 s
->flags
|= DEV_OPT_MULTICAST_TO_UNICAST
;
429 if ((cur
= tb
[DEV_ATTR_MULTICAST_ROUTER
])) {
430 s
->multicast_router
= blobmsg_get_u32(cur
);
431 if (s
->multicast_router
<= 2)
432 s
->flags
|= DEV_OPT_MULTICAST_ROUTER
;
434 DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur
));
437 if ((cur
= tb
[DEV_ATTR_MULTICAST_FAST_LEAVE
])) {
438 s
->multicast_fast_leave
= blobmsg_get_bool(cur
);
439 s
->flags
|= DEV_OPT_MULTICAST_FAST_LEAVE
;
442 if ((cur
= tb
[DEV_ATTR_MULTICAST
])) {
443 s
->multicast
= blobmsg_get_bool(cur
);
444 s
->flags
|= DEV_OPT_MULTICAST
;
447 if ((cur
= tb
[DEV_ATTR_LEARNING
])) {
448 s
->learning
= blobmsg_get_bool(cur
);
449 s
->flags
|= DEV_OPT_LEARNING
;
452 if ((cur
= tb
[DEV_ATTR_UNICAST_FLOOD
])) {
453 s
->unicast_flood
= blobmsg_get_bool(cur
);
454 s
->flags
|= DEV_OPT_UNICAST_FLOOD
;
457 if ((cur
= tb
[DEV_ATTR_SENDREDIRECTS
])) {
458 s
->sendredirects
= blobmsg_get_bool(cur
);
459 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
462 if ((cur
= tb
[DEV_ATTR_ISOLATE
])) {
463 s
->isolate
= blobmsg_get_bool(cur
);
464 s
->flags
|= DEV_OPT_ISOLATE
;
467 if ((cur
= tb
[DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST
])) {
468 s
->drop_v4_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
469 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
472 if ((cur
= tb
[DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST
])) {
473 s
->drop_v6_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
474 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
477 if ((cur
= tb
[DEV_ATTR_DROP_GRATUITOUS_ARP
])) {
478 s
->drop_gratuitous_arp
= blobmsg_get_bool(cur
);
479 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
482 if ((cur
= tb
[DEV_ATTR_DROP_UNSOLICITED_NA
])) {
483 s
->drop_unsolicited_na
= blobmsg_get_bool(cur
);
484 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
487 if ((cur
= tb
[DEV_ATTR_ARP_ACCEPT
])) {
488 s
->arp_accept
= blobmsg_get_bool(cur
);
489 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
492 if ((cur
= tb
[DEV_ATTR_AUTH
])) {
493 s
->auth
= blobmsg_get_bool(cur
);
494 s
->flags
|= DEV_OPT_AUTH
;
497 if ((cur
= tb
[DEV_ATTR_SPEED
])) {
498 s
->speed
= blobmsg_get_u32(cur
);
499 s
->flags
|= DEV_OPT_SPEED
;
502 if ((cur
= tb
[DEV_ATTR_DUPLEX
])) {
503 s
->duplex
= blobmsg_get_bool(cur
);
504 s
->flags
|= DEV_OPT_DUPLEX
;
506 device_set_extra_vlans(dev
, tb
[DEV_ATTR_VLAN
]);
507 device_set_disabled(dev
, disabled
);
510 static void __init
dev_init(void)
512 avl_init(&devices
, avl_strcmp
, true, NULL
);
515 static int device_release_cb(void *ctx
, struct safe_list
*list
)
517 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
519 if (!dep
->dev
|| !dep
->claimed
)
526 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
528 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
531 /* device might have been removed by an earlier callback */
540 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
544 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
545 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
549 device_fill_default_settings(struct device
*dev
)
551 struct device_settings
*s
= &dev
->settings
;
552 struct ether_addr
*ea
;
554 if (!(s
->flags
& DEV_OPT_MACADDR
)) {
555 ea
= config_get_default_macaddr(dev
->ifname
);
557 memcpy(s
->macaddr
, ea
, 6);
558 s
->flags
|= DEV_OPT_DEFAULT_MACADDR
;
563 int device_claim(struct device_user
*dep
)
565 struct device
*dev
= dep
->dev
;
575 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
576 if (++dev
->active
!= 1)
579 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
580 device_fill_default_settings(dev
);
582 /* Get ifindex for external claimed devices so a valid */
583 /* ifindex is in place avoiding possible race conditions */
584 device_set_ifindex(dev
, system_if_resolve(dev
));
588 system_if_get_settings(dev
, &dev
->orig_settings
);
590 ret
= dev
->set_state(dev
, true);
593 device_broadcast_event(dev
, DEV_EVENT_UP
);
595 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
597 dep
->claimed
= false;
603 void device_release(struct device_user
*dep
)
605 struct device
*dev
= dep
->dev
;
610 dep
->claimed
= false;
612 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
613 assert(dev
->active
>= 0);
618 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
620 dev
->set_state(dev
, false);
625 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
628 int device_check_state(struct device
*dev
)
630 if (!dev
->type
->check_state
)
631 return simple_device_type
.check_state(dev
);
633 return dev
->type
->check_state(dev
);
636 int device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
641 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
642 INIT_SAFE_LIST(&dev
->users
);
643 INIT_SAFE_LIST(&dev
->aliases
);
649 ret
= device_set_ifname(dev
, name
);
655 dev
->set_state
= set_device_state
;
660 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
664 ret
= device_init_virtual(dev
, type
, ifname
);
668 dev
->avl
.key
= dev
->ifname
;
670 ret
= avl_insert(&devices
, &dev
->avl
);
674 system_if_clear_state(dev
);
679 static struct device
*
680 device_create_default(const char *name
, bool external
)
684 if (!external
&& system_if_force_external(name
))
687 D(DEVICE
, "Create simple device '%s'\n", name
);
688 dev
= calloc(1, sizeof(*dev
));
692 dev
->external
= external
;
693 dev
->set_state
= simple_device_set_state
;
695 if (device_init(dev
, &simple_device_type
, name
) < 0) {
701 dev
->default_config
= true;
703 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
705 device_check_state(dev
);
711 device_find(const char *name
)
715 return avl_find_element(&devices
, name
, dev
, avl
);
719 __device_get(const char *name
, int create
, bool check_vlan
)
723 dev
= avl_find_element(&devices
, name
, dev
, avl
);
725 if (!dev
&& check_vlan
&& strchr(name
, '.'))
726 return get_vlan_device_chain(name
, create
);
729 return device_alias_get(name
+ 1);
732 if (create
> 1 && !dev
->external
) {
733 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
734 dev
->external
= true;
735 device_set_present(dev
, true);
743 return device_create_default(name
, create
> 1);
747 device_delete(struct device
*dev
)
752 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
753 avl_delete(&devices
, &dev
->avl
);
757 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
759 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
761 dep
->cb(dep
, DEV_EVENT_REMOVE
);
767 void device_cleanup(struct device
*dev
)
769 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
770 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
771 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
775 static void __device_set_present(struct device
*dev
, bool state
)
777 if (dev
->present
== state
)
780 dev
->present
= state
;
781 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
785 device_refresh_present(struct device
*dev
)
787 bool state
= dev
->sys_present
;
789 if (dev
->disabled
|| dev
->deferred
)
792 __device_set_present(dev
, state
);
796 device_set_auth_status(struct device
*dev
, bool value
)
798 if (dev
->auth_status
== value
)
801 dev
->auth_status
= value
;
805 if (dev
->auth_status
) {
806 device_broadcast_event(dev
, DEV_EVENT_AUTH_UP
);
810 device_broadcast_event(dev
, DEV_EVENT_LINK_DOWN
);
811 if (!dev
->link_active
)
814 device_broadcast_event(dev
, DEV_EVENT_LINK_UP
);
817 void device_set_present(struct device
*dev
, bool state
)
819 if (dev
->sys_present
== state
)
822 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
823 dev
->sys_present
= state
;
824 device_refresh_present(dev
);
826 safe_list_for_each(&dev
->users
, device_release_cb
, NULL
);
829 void device_set_link(struct device
*dev
, bool state
)
831 if (dev
->link_active
== state
)
834 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
836 dev
->link_active
= state
;
838 dev
->auth_status
= false;
839 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
842 void device_set_ifindex(struct device
*dev
, int ifindex
)
844 if (dev
->ifindex
== ifindex
)
847 dev
->ifindex
= ifindex
;
848 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
851 int device_set_ifname(struct device
*dev
, const char *name
)
855 if (!strcmp(dev
->ifname
, name
))
858 if (strlen(name
) > sizeof(dev
->ifname
) - 1)
862 avl_delete(&devices
, &dev
->avl
);
864 strcpy(dev
->ifname
, name
);
867 ret
= avl_insert(&devices
, &dev
->avl
);
870 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
875 static int device_refcount(struct device
*dev
)
877 struct list_head
*list
;
880 list_for_each(list
, &dev
->users
.list
)
883 list_for_each(list
, &dev
->aliases
.list
)
890 __device_add_user(struct device_user
*dep
, struct device
*dev
)
892 struct safe_list
*head
;
897 head
= &dev
->aliases
;
901 safe_list_add(&dep
->list
, head
);
902 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
904 if (dep
->cb
&& dev
->present
) {
905 dep
->cb(dep
, DEV_EVENT_ADD
);
907 dep
->cb(dep
, DEV_EVENT_UP
);
909 if (dev
->link_active
)
910 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
914 void device_add_user(struct device_user
*dep
, struct device
*dev
)
920 device_remove_user(dep
);
925 __device_add_user(dep
, dev
);
929 device_free(struct device
*dev
)
934 free(dev
->extra_vlan
);
935 dev
->type
->free(dev
);
940 __device_free_unused(struct uloop_timeout
*timeout
)
942 struct device
*dev
, *tmp
;
944 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
945 if (!safe_list_empty(&dev
->users
) ||
946 !safe_list_empty(&dev
->aliases
) ||
954 void device_free_unused(void)
956 static struct uloop_timeout free_timer
= {
957 .cb
= __device_free_unused
,
960 uloop_timeout_set(&free_timer
, 1);
963 void device_remove_user(struct device_user
*dep
)
965 struct device
*dev
= dep
->dev
;
970 dep
->hotplug
= false;
974 safe_list_del(&dep
->list
);
976 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
977 device_free_unused();
981 device_init_pending(void)
983 struct device
*dev
, *tmp
;
985 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
986 if (!dev
->config_pending
)
989 dev
->type
->config_init(dev
);
990 dev
->config_pending
= false;
991 device_check_state(dev
);
996 device_check_ip6segmentrouting(void)
999 bool ip6segmentrouting
= false;
1001 avl_for_each_element(&devices
, dev
, avl
)
1002 ip6segmentrouting
|= dev
->settings
.ip6segmentrouting
;
1004 return ip6segmentrouting
;
1007 static enum dev_change_type
1008 device_set_config(struct device
*dev
, struct device_type
*type
,
1009 struct blob_attr
*attr
)
1011 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
1012 const struct uci_blob_param_list
*cfg
= type
->config_params
;
1014 if (type
!= dev
->type
)
1015 return DEV_CONFIG_RECREATE
;
1017 if (dev
->type
->reload
)
1018 return dev
->type
->reload(dev
, attr
);
1020 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
1021 return DEV_CONFIG_NO_CHANGE
;
1023 if (cfg
== &device_attr_list
) {
1024 memset(tb
, 0, sizeof(tb
));
1027 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
1028 blob_data(attr
), blob_len(attr
));
1030 device_init_settings(dev
, tb
);
1031 return DEV_CONFIG_RESTART
;
1033 return DEV_CONFIG_RECREATE
;
1036 enum dev_change_type
1037 device_apply_config(struct device
*dev
, struct device_type
*type
,
1038 struct blob_attr
*config
)
1040 enum dev_change_type change
;
1042 change
= device_set_config(dev
, type
, config
);
1043 if (dev
->external
) {
1044 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
1045 change
= DEV_CONFIG_APPLIED
;
1049 case DEV_CONFIG_RESTART
:
1050 case DEV_CONFIG_APPLIED
:
1051 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
1052 config
= blob_memdup(config
);
1054 dev
->config
= config
;
1055 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
1058 device_set_present(dev
, false);
1059 if (dev
->active
&& !dev
->external
) {
1060 ret
= dev
->set_state(dev
, false);
1062 ret
= dev
->set_state(dev
, true);
1065 device_set_present(dev
, true);
1068 case DEV_CONFIG_NO_CHANGE
:
1069 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
1071 case DEV_CONFIG_RECREATE
:
1079 device_replace(struct device
*dev
, struct device
*odev
)
1081 struct device_user
*dep
;
1085 device_set_present(odev
, false);
1087 while (!list_empty(&odev
->users
.list
)) {
1088 dep
= list_first_entry(&odev
->users
.list
, struct device_user
, list
.list
);
1089 device_release(dep
);
1093 safe_list_del(&dep
->list
);
1094 __device_add_user(dep
, dev
);
1102 device_reset_config(void)
1106 avl_for_each_element(&devices
, dev
, avl
)
1107 dev
->current_config
= false;
1111 device_reset_old(void)
1113 struct device
*dev
, *tmp
, *ndev
;
1115 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
1116 if (dev
->current_config
|| dev
->default_config
)
1119 if (dev
->type
!= &simple_device_type
)
1122 ndev
= device_create_default(dev
->ifname
, dev
->external
);
1126 device_replace(ndev
, dev
);
1131 device_create(const char *name
, struct device_type
*type
,
1132 struct blob_attr
*config
)
1134 struct device
*odev
= NULL
, *dev
;
1135 enum dev_change_type change
;
1137 odev
= device_find(name
);
1139 odev
->current_config
= true;
1140 change
= device_apply_config(odev
, type
, config
);
1142 case DEV_CONFIG_RECREATE
:
1143 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
1144 device_delete(odev
);
1150 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
1152 config
= blob_memdup(config
);
1156 dev
= type
->create(name
, type
, config
);
1160 dev
->current_config
= true;
1161 dev
->config
= config
;
1163 device_replace(dev
, odev
);
1165 if (!config_init
&& dev
->config_pending
) {
1166 type
->config_init(dev
);
1167 dev
->config_pending
= false;
1170 device_check_state(dev
);
1176 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
1178 struct device_settings st
;
1182 avl_for_each_element(&devices
, dev
, avl
) {
1185 c
= blobmsg_open_table(b
, dev
->ifname
);
1186 device_dump_status(b
, dev
);
1187 blobmsg_close_table(b
, c
);
1193 blobmsg_add_u8(b
, "external", dev
->external
);
1194 blobmsg_add_u8(b
, "present", dev
->present
);
1195 blobmsg_add_string(b
, "type", dev
->type
->name
);
1200 blobmsg_add_u8(b
, "up", !!dev
->active
);
1201 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1202 blobmsg_add_u8(b
, "auth_status", !!dev
->auth_status
);
1204 if (dev
->type
->dump_info
)
1205 dev
->type
->dump_info(dev
, b
);
1207 system_if_dump_info(dev
, b
);
1210 device_merge_settings(dev
, &st
);
1211 if (st
.flags
& DEV_OPT_MTU
)
1212 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1213 if (st
.flags
& DEV_OPT_MTU6
)
1214 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1215 if (st
.flags
& DEV_OPT_MACADDR
)
1216 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1217 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1218 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1219 if (st
.flags
& DEV_OPT_IPV6
)
1220 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1221 if (st
.flags
& DEV_OPT_IP6SEGMENTROUTING
)
1222 blobmsg_add_u8(b
, "ip6segmentrouting", st
.ip6segmentrouting
);
1223 if (st
.flags
& DEV_OPT_PROMISC
)
1224 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1225 if (st
.flags
& DEV_OPT_RPFILTER
)
1226 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1227 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1228 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1229 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1230 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1231 if (st
.flags
& DEV_OPT_MLDVERSION
)
1232 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1233 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1234 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1235 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1237 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1238 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1239 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1241 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1242 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1243 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1244 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1245 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1246 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1247 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1248 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1249 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1250 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1251 if (st
.flags
& DEV_OPT_MULTICAST
)
1252 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1253 if (st
.flags
& DEV_OPT_LEARNING
)
1254 blobmsg_add_u8(b
, "learning", st
.learning
);
1255 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1256 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1257 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1258 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1259 if (st
.flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1260 blobmsg_add_u8(b
, "drop_v4_unicast_in_l2_multicast", st
.drop_v4_unicast_in_l2_multicast
);
1261 if (st
.flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1262 blobmsg_add_u8(b
, "drop_v6_unicast_in_l2_multicast", st
.drop_v6_unicast_in_l2_multicast
);
1263 if (st
.flags
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1264 blobmsg_add_u8(b
, "drop_gratuitous_arp", st
.drop_gratuitous_arp
);
1265 if (st
.flags
& DEV_OPT_DROP_UNSOLICITED_NA
)
1266 blobmsg_add_u8(b
, "drop_unsolicited_na", st
.drop_unsolicited_na
);
1267 if (st
.flags
& DEV_OPT_ARP_ACCEPT
)
1268 blobmsg_add_u8(b
, "arp_accept", st
.arp_accept
);
1269 if (st
.flags
& DEV_OPT_AUTH
)
1270 blobmsg_add_u8(b
, "auth", st
.auth
);
1273 s
= blobmsg_open_table(b
, "statistics");
1274 if (dev
->type
->dump_stats
)
1275 dev
->type
->dump_stats(dev
, b
);
1277 system_if_dump_stats(dev
, b
);
1278 blobmsg_close_table(b
, s
);
1281 static void __init
simple_device_type_init(void)
1283 device_type_add(&simple_device_type
);
1286 void device_hotplug_event(const char *name
, bool add
)
1290 wireless_device_hotplug_event(name
, add
);
1292 dev
= device_find(name
);
1293 if (!dev
|| dev
->type
!= &simple_device_type
)
1296 device_set_present(dev
, add
);