2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
19 #include <sys/types.h>
20 #include <sys/socket.h>
22 #include <libubox/list.h>
28 static struct list_head devtypes
= LIST_HEAD_INIT(devtypes
);
29 static struct avl_tree devices
;
31 static const struct blobmsg_policy dev_attrs
[__DEV_ATTR_MAX
] = {
32 [DEV_ATTR_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
33 [DEV_ATTR_MTU
] = { .name
= "mtu", .type
= BLOBMSG_TYPE_INT32
},
34 [DEV_ATTR_MTU6
] = { .name
= "mtu6", .type
= BLOBMSG_TYPE_INT32
},
35 [DEV_ATTR_MACADDR
] = { .name
= "macaddr", .type
= BLOBMSG_TYPE_STRING
},
36 [DEV_ATTR_TXQUEUELEN
] = { .name
= "txqueuelen", .type
= BLOBMSG_TYPE_INT32
},
37 [DEV_ATTR_ENABLED
] = { .name
= "enabled", .type
= BLOBMSG_TYPE_BOOL
},
38 [DEV_ATTR_IPV6
] = { .name
= "ipv6", .type
= BLOBMSG_TYPE_BOOL
},
39 [DEV_ATTR_IP6SEGMENTROUTING
] = { .name
= "ip6segmentrouting", .type
= BLOBMSG_TYPE_BOOL
},
40 [DEV_ATTR_PROMISC
] = { .name
= "promisc", .type
= BLOBMSG_TYPE_BOOL
},
41 [DEV_ATTR_RPFILTER
] = { .name
= "rpfilter", .type
= BLOBMSG_TYPE_STRING
},
42 [DEV_ATTR_ACCEPTLOCAL
] = { .name
= "acceptlocal", .type
= BLOBMSG_TYPE_BOOL
},
43 [DEV_ATTR_IGMPVERSION
] = { .name
= "igmpversion", .type
= BLOBMSG_TYPE_INT32
},
44 [DEV_ATTR_MLDVERSION
] = { .name
= "mldversion", .type
= BLOBMSG_TYPE_INT32
},
45 [DEV_ATTR_NEIGHREACHABLETIME
] = { .name
= "neighreachabletime", .type
= BLOBMSG_TYPE_INT32
},
46 [DEV_ATTR_NEIGHGCSTALETIME
] = { .name
= "neighgcstaletime", .type
= BLOBMSG_TYPE_INT32
},
47 [DEV_ATTR_DADTRANSMITS
] = { .name
= "dadtransmits", .type
= BLOBMSG_TYPE_INT32
},
48 [DEV_ATTR_MULTICAST_TO_UNICAST
] = { .name
= "multicast_to_unicast", .type
= BLOBMSG_TYPE_BOOL
},
49 [DEV_ATTR_MULTICAST_ROUTER
] = { .name
= "multicast_router", .type
= BLOBMSG_TYPE_INT32
},
50 [DEV_ATTR_MULTICAST_FAST_LEAVE
] = { .name
= "multicast_fast_leave", . type
= BLOBMSG_TYPE_BOOL
},
51 [DEV_ATTR_MULTICAST
] = { .name
="multicast", .type
= BLOBMSG_TYPE_BOOL
},
52 [DEV_ATTR_LEARNING
] = { .name
="learning", .type
= BLOBMSG_TYPE_BOOL
},
53 [DEV_ATTR_UNICAST_FLOOD
] = { .name
="unicast_flood", .type
= BLOBMSG_TYPE_BOOL
},
54 [DEV_ATTR_SENDREDIRECTS
] = { .name
= "sendredirects", .type
= BLOBMSG_TYPE_BOOL
},
55 [DEV_ATTR_NEIGHLOCKTIME
] = { .name
= "neighlocktime", .type
= BLOBMSG_TYPE_INT32
},
56 [DEV_ATTR_ISOLATE
] = { .name
= "isolate", .type
= BLOBMSG_TYPE_BOOL
},
57 [DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST
] = { .name
= "drop_v4_unicast_in_l2_multicast", .type
= BLOBMSG_TYPE_BOOL
},
58 [DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST
] = { .name
= "drop_v6_unicast_in_l2_multicast", .type
= BLOBMSG_TYPE_BOOL
},
59 [DEV_ATTR_DROP_GRATUITOUS_ARP
] = { .name
= "drop_gratuitous_arp", .type
= BLOBMSG_TYPE_BOOL
},
60 [DEV_ATTR_DROP_UNSOLICITED_NA
] = { .name
= "drop_unsolicited_na", .type
= BLOBMSG_TYPE_BOOL
},
61 [DEV_ATTR_ARP_ACCEPT
] = { .name
= "arp_accept", .type
= BLOBMSG_TYPE_BOOL
},
64 const struct uci_blob_param_list device_attr_list
= {
65 .n_params
= __DEV_ATTR_MAX
,
69 static int __devlock
= 0;
71 int device_type_add(struct device_type
*devtype
)
73 if (device_type_get(devtype
->name
)) {
74 netifd_log_message(L_WARNING
, "Device handler '%s' already exists\n",
79 netifd_log_message(L_NOTICE
, "Added device handler type: %s\n",
82 list_add(&devtype
->list
, &devtypes
);
87 device_type_get(const char *tname
)
89 struct device_type
*cur
;
91 list_for_each_entry(cur
, &devtypes
, list
)
92 if (!strcmp(cur
->name
, tname
))
98 void device_lock(void)
103 void device_unlock(void)
107 device_free_unused(NULL
);
110 static int device_vlan_len(struct kvlist
*kv
, const void *data
)
112 return sizeof(unsigned int);
115 void device_vlan_update(bool done
)
119 avl_for_each_element(&devices
, dev
, avl
) {
120 if (!dev
->vlans
.update
)
124 if (dev
->vlan_aliases
.get_len
)
125 kvlist_free(&dev
->vlan_aliases
);
127 kvlist_init(&dev
->vlan_aliases
, device_vlan_len
);
128 vlist_update(&dev
->vlans
);
130 vlist_flush(&dev
->vlans
);
135 static int set_device_state(struct device
*dev
, bool state
)
138 /* Get ifindex for all devices being enabled so a valid */
139 /* ifindex is in place avoiding possible race conditions */
140 device_set_ifindex(dev
, system_if_resolve(dev
));
144 system_if_get_settings(dev
, &dev
->orig_settings
);
145 /* Only keep orig settings based on what needs to be set */
146 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
147 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
148 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
153 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
160 simple_device_set_state(struct device
*dev
, bool state
)
165 pdev
= dev
->parent
.dev
;
166 if (state
&& !pdev
) {
167 pdev
= system_if_get_parent(dev
);
169 device_add_user(&dev
->parent
, pdev
);
174 ret
= device_claim(&dev
->parent
);
176 device_release(&dev
->parent
);
181 return set_device_state(dev
, state
);
184 static struct device
*
185 simple_device_create(const char *name
, struct device_type
*devtype
,
186 struct blob_attr
*attr
)
188 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
189 struct device
*dev
= NULL
;
191 /* device type is unused for simple devices */
194 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
, blob_data(attr
), blob_len(attr
));
195 dev
= device_get(name
, true);
199 dev
->set_state
= simple_device_set_state
;
200 device_init_settings(dev
, tb
);
205 static void simple_device_free(struct device
*dev
)
208 device_remove_user(&dev
->parent
);
212 struct device_type simple_device_type
= {
213 .name
= "Network device",
214 .config_params
= &device_attr_list
,
216 .create
= simple_device_create
,
217 .check_state
= system_if_check
,
218 .free
= simple_device_free
,
222 device_merge_settings(struct device
*dev
, struct device_settings
*n
)
224 struct device_settings
*os
= &dev
->orig_settings
;
225 struct device_settings
*s
= &dev
->settings
;
227 memset(n
, 0, sizeof(*n
));
228 n
->mtu
= s
->flags
& DEV_OPT_MTU
? s
->mtu
: os
->mtu
;
229 n
->mtu6
= s
->flags
& DEV_OPT_MTU6
? s
->mtu6
: os
->mtu6
;
230 n
->txqueuelen
= s
->flags
& DEV_OPT_TXQUEUELEN
?
231 s
->txqueuelen
: os
->txqueuelen
;
233 (s
->flags
& (DEV_OPT_MACADDR
|DEV_OPT_DEFAULT_MACADDR
) ? s
->macaddr
: os
->macaddr
),
235 n
->ipv6
= s
->flags
& DEV_OPT_IPV6
? s
->ipv6
: os
->ipv6
;
236 n
->ip6segmentrouting
= s
->flags
& DEV_OPT_IP6SEGMENTROUTING
? s
->ip6segmentrouting
: os
->ip6segmentrouting
;
237 n
->promisc
= s
->flags
& DEV_OPT_PROMISC
? s
->promisc
: os
->promisc
;
238 n
->rpfilter
= s
->flags
& DEV_OPT_RPFILTER
? s
->rpfilter
: os
->rpfilter
;
239 n
->acceptlocal
= s
->flags
& DEV_OPT_ACCEPTLOCAL
? s
->acceptlocal
: os
->acceptlocal
;
240 n
->igmpversion
= s
->flags
& DEV_OPT_IGMPVERSION
? s
->igmpversion
: os
->igmpversion
;
241 n
->mldversion
= s
->flags
& DEV_OPT_MLDVERSION
? s
->mldversion
: os
->mldversion
;
242 n
->neigh4reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
243 s
->neigh4reachabletime
: os
->neigh4reachabletime
;
244 n
->neigh6reachabletime
= s
->flags
& DEV_OPT_NEIGHREACHABLETIME
?
245 s
->neigh6reachabletime
: os
->neigh6reachabletime
;
246 n
->neigh4gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
247 s
->neigh4gcstaletime
: os
->neigh4gcstaletime
;
248 n
->neigh6gcstaletime
= s
->flags
& DEV_OPT_NEIGHGCSTALETIME
?
249 s
->neigh6gcstaletime
: os
->neigh6gcstaletime
;
250 n
->neigh4locktime
= s
->flags
& DEV_OPT_NEIGHLOCKTIME
?
251 s
->neigh4locktime
: os
->neigh4locktime
;
252 n
->dadtransmits
= s
->flags
& DEV_OPT_DADTRANSMITS
?
253 s
->dadtransmits
: os
->dadtransmits
;
254 n
->multicast
= s
->flags
& DEV_OPT_MULTICAST
?
255 s
->multicast
: os
->multicast
;
256 n
->multicast_to_unicast
= s
->multicast_to_unicast
;
257 n
->multicast_router
= s
->multicast_router
;
258 n
->multicast_fast_leave
= s
->multicast_fast_leave
;
259 n
->learning
= s
->learning
;
260 n
->unicast_flood
= s
->unicast_flood
;
261 n
->sendredirects
= s
->flags
& DEV_OPT_SENDREDIRECTS
?
262 s
->sendredirects
: os
->sendredirects
;
263 n
->drop_v4_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
?
264 s
->drop_v4_unicast_in_l2_multicast
: os
->drop_v4_unicast_in_l2_multicast
;
265 n
->drop_v6_unicast_in_l2_multicast
= s
->flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
?
266 s
->drop_v6_unicast_in_l2_multicast
: os
->drop_v6_unicast_in_l2_multicast
;
267 n
->drop_gratuitous_arp
= s
->flags
& DEV_OPT_DROP_GRATUITOUS_ARP
?
268 s
->drop_gratuitous_arp
: os
->drop_gratuitous_arp
;
269 n
->drop_unsolicited_na
= s
->flags
& DEV_OPT_DROP_UNSOLICITED_NA
?
270 s
->drop_unsolicited_na
: os
->drop_unsolicited_na
;
271 n
->arp_accept
= s
->flags
& DEV_OPT_ARP_ACCEPT
?
272 s
->arp_accept
: os
->arp_accept
;
273 n
->flags
= s
->flags
| os
->flags
| os
->valid_flags
;
277 device_init_settings(struct device
*dev
, struct blob_attr
**tb
)
279 struct device_settings
*s
= &dev
->settings
;
280 struct blob_attr
*cur
;
281 struct ether_addr
*ea
;
282 bool disabled
= false;
285 if ((cur
= tb
[DEV_ATTR_ENABLED
]))
286 disabled
= !blobmsg_get_bool(cur
);
288 if ((cur
= tb
[DEV_ATTR_MTU
]) && blobmsg_get_u32(cur
) >= 68) {
289 s
->mtu
= blobmsg_get_u32(cur
);
290 s
->flags
|= DEV_OPT_MTU
;
293 if ((cur
= tb
[DEV_ATTR_MTU6
]) && blobmsg_get_u32(cur
) >= 1280) {
294 s
->mtu6
= blobmsg_get_u32(cur
);
295 s
->flags
|= DEV_OPT_MTU6
;
298 if ((cur
= tb
[DEV_ATTR_TXQUEUELEN
])) {
299 s
->txqueuelen
= blobmsg_get_u32(cur
);
300 s
->flags
|= DEV_OPT_TXQUEUELEN
;
303 if ((cur
= tb
[DEV_ATTR_MACADDR
])) {
304 ea
= ether_aton(blobmsg_data(cur
));
306 memcpy(s
->macaddr
, ea
, 6);
307 s
->flags
|= DEV_OPT_MACADDR
;
311 if ((cur
= tb
[DEV_ATTR_IPV6
])) {
312 s
->ipv6
= blobmsg_get_bool(cur
);
313 s
->flags
|= DEV_OPT_IPV6
;
316 if ((cur
= tb
[DEV_ATTR_IP6SEGMENTROUTING
])) {
317 s
->ip6segmentrouting
= blobmsg_get_bool(cur
);
318 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
321 if ((cur
= tb
[DEV_ATTR_PROMISC
])) {
322 s
->promisc
= blobmsg_get_bool(cur
);
323 s
->flags
|= DEV_OPT_PROMISC
;
326 if ((cur
= tb
[DEV_ATTR_RPFILTER
])) {
327 if (system_resolve_rpfilter(blobmsg_data(cur
), &s
->rpfilter
))
328 s
->flags
|= DEV_OPT_RPFILTER
;
330 DPRINTF("Failed to resolve rpfilter: %s\n", (char *) blobmsg_data(cur
));
333 if ((cur
= tb
[DEV_ATTR_ACCEPTLOCAL
])) {
334 s
->acceptlocal
= blobmsg_get_bool(cur
);
335 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
338 if ((cur
= tb
[DEV_ATTR_IGMPVERSION
])) {
339 s
->igmpversion
= blobmsg_get_u32(cur
);
340 if (s
->igmpversion
>= 1 && s
->igmpversion
<= 3)
341 s
->flags
|= DEV_OPT_IGMPVERSION
;
343 DPRINTF("Failed to resolve igmpversion: %d\n", blobmsg_get_u32(cur
));
346 if ((cur
= tb
[DEV_ATTR_MLDVERSION
])) {
347 s
->mldversion
= blobmsg_get_u32(cur
);
348 if (s
->mldversion
>= 1 && s
->mldversion
<= 2)
349 s
->flags
|= DEV_OPT_MLDVERSION
;
351 DPRINTF("Failed to resolve mldversion: %d\n", blobmsg_get_u32(cur
));
354 if ((cur
= tb
[DEV_ATTR_NEIGHREACHABLETIME
])) {
355 s
->neigh6reachabletime
= s
->neigh4reachabletime
= blobmsg_get_u32(cur
);
356 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
359 if ((cur
= tb
[DEV_ATTR_NEIGHGCSTALETIME
])) {
360 s
->neigh6gcstaletime
= s
->neigh4gcstaletime
= blobmsg_get_u32(cur
);
361 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
364 if ((cur
= tb
[DEV_ATTR_NEIGHLOCKTIME
])) {
365 s
->neigh4locktime
= blobmsg_get_u32(cur
);
366 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
369 if ((cur
= tb
[DEV_ATTR_DADTRANSMITS
])) {
370 s
->dadtransmits
= blobmsg_get_u32(cur
);
371 s
->flags
|= DEV_OPT_DADTRANSMITS
;
374 if ((cur
= tb
[DEV_ATTR_MULTICAST_TO_UNICAST
])) {
375 s
->multicast_to_unicast
= blobmsg_get_bool(cur
);
376 s
->flags
|= DEV_OPT_MULTICAST_TO_UNICAST
;
379 if ((cur
= tb
[DEV_ATTR_MULTICAST_ROUTER
])) {
380 s
->multicast_router
= blobmsg_get_u32(cur
);
381 if (s
->multicast_router
<= 2)
382 s
->flags
|= DEV_OPT_MULTICAST_ROUTER
;
384 DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur
));
387 if ((cur
= tb
[DEV_ATTR_MULTICAST_FAST_LEAVE
])) {
388 s
->multicast_fast_leave
= blobmsg_get_bool(cur
);
389 s
->flags
|= DEV_OPT_MULTICAST_FAST_LEAVE
;
392 if ((cur
= tb
[DEV_ATTR_MULTICAST
])) {
393 s
->multicast
= blobmsg_get_bool(cur
);
394 s
->flags
|= DEV_OPT_MULTICAST
;
397 if ((cur
= tb
[DEV_ATTR_LEARNING
])) {
398 s
->learning
= blobmsg_get_bool(cur
);
399 s
->flags
|= DEV_OPT_LEARNING
;
402 if ((cur
= tb
[DEV_ATTR_UNICAST_FLOOD
])) {
403 s
->unicast_flood
= blobmsg_get_bool(cur
);
404 s
->flags
|= DEV_OPT_UNICAST_FLOOD
;
407 if ((cur
= tb
[DEV_ATTR_SENDREDIRECTS
])) {
408 s
->sendredirects
= blobmsg_get_bool(cur
);
409 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
412 if ((cur
= tb
[DEV_ATTR_ISOLATE
])) {
413 s
->isolate
= blobmsg_get_bool(cur
);
414 s
->flags
|= DEV_OPT_ISOLATE
;
417 if ((cur
= tb
[DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST
])) {
418 s
->drop_v4_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
419 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
422 if ((cur
= tb
[DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST
])) {
423 s
->drop_v6_unicast_in_l2_multicast
= blobmsg_get_bool(cur
);
424 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
427 if ((cur
= tb
[DEV_ATTR_DROP_GRATUITOUS_ARP
])) {
428 s
->drop_gratuitous_arp
= blobmsg_get_bool(cur
);
429 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
432 if ((cur
= tb
[DEV_ATTR_DROP_UNSOLICITED_NA
])) {
433 s
->drop_unsolicited_na
= blobmsg_get_bool(cur
);
434 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
437 if ((cur
= tb
[DEV_ATTR_ARP_ACCEPT
])) {
438 s
->arp_accept
= blobmsg_get_bool(cur
);
439 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
442 device_set_disabled(dev
, disabled
);
445 static void __init
dev_init(void)
447 avl_init(&devices
, avl_strcmp
, true, NULL
);
450 static int device_broadcast_cb(void *ctx
, struct safe_list
*list
)
452 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
455 /* device might have been removed by an earlier callback */
464 void device_broadcast_event(struct device
*dev
, enum device_event ev
)
468 safe_list_for_each(&dev
->aliases
, device_broadcast_cb
, &dev_ev
);
469 safe_list_for_each(&dev
->users
, device_broadcast_cb
, &dev_ev
);
473 device_fill_default_settings(struct device
*dev
)
475 struct device_settings
*s
= &dev
->settings
;
476 struct ether_addr
*ea
;
478 if (!(s
->flags
& DEV_OPT_MACADDR
)) {
479 ea
= config_get_default_macaddr(dev
->ifname
);
481 memcpy(s
->macaddr
, ea
, 6);
482 s
->flags
|= DEV_OPT_DEFAULT_MACADDR
;
487 int device_claim(struct device_user
*dep
)
489 struct device
*dev
= dep
->dev
;
499 D(DEVICE
, "Claim %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
+ 1);
500 if (++dev
->active
!= 1)
503 device_broadcast_event(dev
, DEV_EVENT_SETUP
);
504 device_fill_default_settings(dev
);
506 /* Get ifindex for external claimed devices so a valid */
507 /* ifindex is in place avoiding possible race conditions */
508 device_set_ifindex(dev
, system_if_resolve(dev
));
512 system_if_get_settings(dev
, &dev
->orig_settings
);
514 ret
= dev
->set_state(dev
, true);
517 device_broadcast_event(dev
, DEV_EVENT_UP
);
519 D(DEVICE
, "claim %s %s failed: %d\n", dev
->type
->name
, dev
->ifname
, ret
);
521 dep
->claimed
= false;
527 void device_release(struct device_user
*dep
)
529 struct device
*dev
= dep
->dev
;
534 dep
->claimed
= false;
536 D(DEVICE
, "Release %s %s, new active count: %d\n", dev
->type
->name
, dev
->ifname
, dev
->active
);
537 assert(dev
->active
>= 0);
542 device_broadcast_event(dev
, DEV_EVENT_TEARDOWN
);
544 dev
->set_state(dev
, false);
549 device_broadcast_event(dev
, DEV_EVENT_DOWN
);
552 int device_check_state(struct device
*dev
)
554 if (!dev
->type
->check_state
)
555 return simple_device_type
.check_state(dev
);
557 return dev
->type
->check_state(dev
);
560 int device_init_virtual(struct device
*dev
, struct device_type
*type
, const char *name
)
565 D(DEVICE
, "Initialize device '%s'\n", name
? name
: "");
566 INIT_SAFE_LIST(&dev
->users
);
567 INIT_SAFE_LIST(&dev
->aliases
);
573 ret
= device_set_ifname(dev
, name
);
579 dev
->set_state
= set_device_state
;
584 int device_init(struct device
*dev
, struct device_type
*type
, const char *ifname
)
588 ret
= device_init_virtual(dev
, type
, ifname
);
592 dev
->avl
.key
= dev
->ifname
;
594 ret
= avl_insert(&devices
, &dev
->avl
);
598 system_if_clear_state(dev
);
603 static struct device
*
604 device_create_default(const char *name
, bool external
)
608 if (!external
&& system_if_force_external(name
))
611 D(DEVICE
, "Create simple device '%s'\n", name
);
612 dev
= calloc(1, sizeof(*dev
));
616 dev
->external
= external
;
617 dev
->set_state
= simple_device_set_state
;
619 if (device_init(dev
, &simple_device_type
, name
) < 0) {
625 dev
->default_config
= true;
627 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
629 device_check_state(dev
);
635 device_find(const char *name
)
639 return avl_find_element(&devices
, name
, dev
, avl
);
643 device_get(const char *name
, int create
)
647 dev
= avl_find_element(&devices
, name
, dev
, avl
);
649 if (!dev
&& strchr(name
, '.'))
650 return get_vlan_device_chain(name
, create
);
653 return device_alias_get(name
+ 1);
656 if (create
> 1 && !dev
->external
) {
657 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
658 dev
->external
= true;
659 device_set_present(dev
, true);
667 return device_create_default(name
, create
> 1);
671 device_delete(struct device
*dev
)
676 D(DEVICE
, "Delete device '%s' from list\n", dev
->ifname
);
677 avl_delete(&devices
, &dev
->avl
);
681 static int device_cleanup_cb(void *ctx
, struct safe_list
*list
)
683 struct device_user
*dep
= container_of(list
, struct device_user
, list
);
685 dep
->cb(dep
, DEV_EVENT_REMOVE
);
691 void device_cleanup(struct device
*dev
)
693 D(DEVICE
, "Clean up device '%s'\n", dev
->ifname
);
694 safe_list_for_each(&dev
->users
, device_cleanup_cb
, NULL
);
695 safe_list_for_each(&dev
->aliases
, device_cleanup_cb
, NULL
);
699 static void __device_set_present(struct device
*dev
, bool state
)
701 if (dev
->present
== state
)
704 dev
->present
= state
;
705 device_broadcast_event(dev
, state
? DEV_EVENT_ADD
: DEV_EVENT_REMOVE
);
709 device_refresh_present(struct device
*dev
)
711 bool state
= dev
->sys_present
;
713 if (dev
->disabled
|| dev
->deferred
)
716 __device_set_present(dev
, state
);
719 void device_set_present(struct device
*dev
, bool state
)
721 if (dev
->sys_present
== state
)
724 D(DEVICE
, "%s '%s' %s present\n", dev
->type
->name
, dev
->ifname
, state
? "is now" : "is no longer" );
725 dev
->sys_present
= state
;
726 device_refresh_present(dev
);
729 void device_set_link(struct device
*dev
, bool state
)
731 if (dev
->link_active
== state
)
734 netifd_log_message(L_NOTICE
, "%s '%s' link is %s\n", dev
->type
->name
, dev
->ifname
, state
? "up" : "down" );
736 dev
->link_active
= state
;
737 device_broadcast_event(dev
, state
? DEV_EVENT_LINK_UP
: DEV_EVENT_LINK_DOWN
);
740 void device_set_ifindex(struct device
*dev
, int ifindex
)
742 if (dev
->ifindex
== ifindex
)
745 dev
->ifindex
= ifindex
;
746 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFINDEX
);
749 int device_set_ifname(struct device
*dev
, const char *name
)
753 if (!strcmp(dev
->ifname
, name
))
756 if (strlen(name
) > sizeof(dev
->ifname
) - 1)
760 avl_delete(&devices
, &dev
->avl
);
762 strcpy(dev
->ifname
, name
);
765 ret
= avl_insert(&devices
, &dev
->avl
);
768 device_broadcast_event(dev
, DEV_EVENT_UPDATE_IFNAME
);
773 static int device_refcount(struct device
*dev
)
775 struct list_head
*list
;
778 list_for_each(list
, &dev
->users
.list
)
781 list_for_each(list
, &dev
->aliases
.list
)
788 __device_add_user(struct device_user
*dep
, struct device
*dev
)
790 struct safe_list
*head
;
795 head
= &dev
->aliases
;
799 safe_list_add(&dep
->list
, head
);
800 D(DEVICE
, "Add user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
802 if (dep
->cb
&& dev
->present
) {
803 dep
->cb(dep
, DEV_EVENT_ADD
);
805 dep
->cb(dep
, DEV_EVENT_UP
);
807 if (dev
->link_active
)
808 dep
->cb(dep
, DEV_EVENT_LINK_UP
);
812 void device_add_user(struct device_user
*dep
, struct device
*dev
)
818 device_remove_user(dep
);
823 __device_add_user(dep
, dev
);
827 device_free(struct device
*dev
)
832 dev
->type
->free(dev
);
837 __device_free_unused(struct device
*dev
)
839 if (!safe_list_empty(&dev
->users
) ||
840 !safe_list_empty(&dev
->aliases
) ||
841 dev
->current_config
|| __devlock
)
847 void device_remove_user(struct device_user
*dep
)
849 struct device
*dev
= dep
->dev
;
854 dep
->hotplug
= false;
858 safe_list_del(&dep
->list
);
860 D(DEVICE
, "Remove user for device '%s', refcount=%d\n", dev
->ifname
, device_refcount(dev
));
861 __device_free_unused(dev
);
865 device_free_unused(struct device
*dev
)
870 return __device_free_unused(dev
);
872 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
)
873 __device_free_unused(dev
);
877 device_init_pending(void)
879 struct device
*dev
, *tmp
;
881 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
882 if (!dev
->config_pending
)
885 dev
->type
->config_init(dev
);
886 dev
->config_pending
= false;
887 device_check_state(dev
);
892 device_check_ip6segmentrouting(void)
895 bool ip6segmentrouting
= false;
897 avl_for_each_element(&devices
, dev
, avl
)
898 ip6segmentrouting
|= dev
->settings
.ip6segmentrouting
;
900 return ip6segmentrouting
;
903 static enum dev_change_type
904 device_set_config(struct device
*dev
, struct device_type
*type
,
905 struct blob_attr
*attr
)
907 struct blob_attr
*tb
[__DEV_ATTR_MAX
];
908 const struct uci_blob_param_list
*cfg
= type
->config_params
;
910 if (type
!= dev
->type
)
911 return DEV_CONFIG_RECREATE
;
913 if (dev
->type
->reload
)
914 return dev
->type
->reload(dev
, attr
);
916 if (uci_blob_check_equal(dev
->config
, attr
, cfg
))
917 return DEV_CONFIG_NO_CHANGE
;
919 if (cfg
== &device_attr_list
) {
920 memset(tb
, 0, sizeof(tb
));
923 blobmsg_parse(dev_attrs
, __DEV_ATTR_MAX
, tb
,
924 blob_data(attr
), blob_len(attr
));
926 device_init_settings(dev
, tb
);
927 return DEV_CONFIG_RESTART
;
929 return DEV_CONFIG_RECREATE
;
933 device_apply_config(struct device
*dev
, struct device_type
*type
,
934 struct blob_attr
*config
)
936 enum dev_change_type change
;
938 change
= device_set_config(dev
, type
, config
);
940 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
941 change
= DEV_CONFIG_APPLIED
;
945 case DEV_CONFIG_RESTART
:
946 case DEV_CONFIG_APPLIED
:
947 D(DEVICE
, "Device '%s': config applied\n", dev
->ifname
);
948 config
= blob_memdup(config
);
950 dev
->config
= config
;
951 if (change
== DEV_CONFIG_RESTART
&& dev
->present
) {
954 device_set_present(dev
, false);
955 if (dev
->active
&& !dev
->external
) {
956 ret
= dev
->set_state(dev
, false);
958 ret
= dev
->set_state(dev
, true);
961 device_set_present(dev
, true);
964 case DEV_CONFIG_NO_CHANGE
:
965 D(DEVICE
, "Device '%s': no configuration change\n", dev
->ifname
);
967 case DEV_CONFIG_RECREATE
:
975 device_replace(struct device
*dev
, struct device
*odev
)
977 struct device_user
*dep
, *tmp
;
981 device_set_present(odev
, false);
983 list_for_each_entry_safe(dep
, tmp
, &odev
->users
.list
, list
.list
) {
985 safe_list_del(&dep
->list
);
986 __device_add_user(dep
, dev
);
994 device_reset_config(void)
998 avl_for_each_element(&devices
, dev
, avl
)
999 dev
->current_config
= false;
1003 device_reset_old(void)
1005 struct device
*dev
, *tmp
, *ndev
;
1007 avl_for_each_element_safe(&devices
, dev
, avl
, tmp
) {
1008 if (dev
->current_config
|| dev
->default_config
)
1011 if (dev
->type
!= &simple_device_type
)
1014 ndev
= device_create_default(dev
->ifname
, dev
->external
);
1018 device_replace(ndev
, dev
);
1023 device_create(const char *name
, struct device_type
*type
,
1024 struct blob_attr
*config
)
1026 struct device
*odev
= NULL
, *dev
;
1027 enum dev_change_type change
;
1029 odev
= device_find(name
);
1031 odev
->current_config
= true;
1032 change
= device_apply_config(odev
, type
, config
);
1034 case DEV_CONFIG_RECREATE
:
1035 D(DEVICE
, "Device '%s': recreate device\n", odev
->ifname
);
1036 device_delete(odev
);
1042 D(DEVICE
, "Create new device '%s' (%s)\n", name
, type
->name
);
1044 config
= blob_memdup(config
);
1048 dev
= type
->create(name
, type
, config
);
1052 dev
->current_config
= true;
1053 dev
->config
= config
;
1055 device_replace(dev
, odev
);
1057 if (!config_init
&& dev
->config_pending
) {
1058 type
->config_init(dev
);
1059 dev
->config_pending
= false;
1062 device_check_state(dev
);
1068 device_dump_status(struct blob_buf
*b
, struct device
*dev
)
1070 struct device_settings st
;
1074 avl_for_each_element(&devices
, dev
, avl
) {
1077 c
= blobmsg_open_table(b
, dev
->ifname
);
1078 device_dump_status(b
, dev
);
1079 blobmsg_close_table(b
, c
);
1085 blobmsg_add_u8(b
, "external", dev
->external
);
1086 blobmsg_add_u8(b
, "present", dev
->present
);
1087 blobmsg_add_string(b
, "type", dev
->type
->name
);
1092 blobmsg_add_u8(b
, "up", !!dev
->active
);
1093 blobmsg_add_u8(b
, "carrier", !!dev
->link_active
);
1095 if (dev
->type
->dump_info
)
1096 dev
->type
->dump_info(dev
, b
);
1098 system_if_dump_info(dev
, b
);
1101 device_merge_settings(dev
, &st
);
1102 if (st
.flags
& DEV_OPT_MTU
)
1103 blobmsg_add_u32(b
, "mtu", st
.mtu
);
1104 if (st
.flags
& DEV_OPT_MTU6
)
1105 blobmsg_add_u32(b
, "mtu6", st
.mtu6
);
1106 if (st
.flags
& DEV_OPT_MACADDR
)
1107 blobmsg_add_string(b
, "macaddr", format_macaddr(st
.macaddr
));
1108 if (st
.flags
& DEV_OPT_TXQUEUELEN
)
1109 blobmsg_add_u32(b
, "txqueuelen", st
.txqueuelen
);
1110 if (st
.flags
& DEV_OPT_IPV6
)
1111 blobmsg_add_u8(b
, "ipv6", st
.ipv6
);
1112 if (st
.flags
& DEV_OPT_IP6SEGMENTROUTING
)
1113 blobmsg_add_u8(b
, "ip6segmentrouting", st
.ip6segmentrouting
);
1114 if (st
.flags
& DEV_OPT_PROMISC
)
1115 blobmsg_add_u8(b
, "promisc", st
.promisc
);
1116 if (st
.flags
& DEV_OPT_RPFILTER
)
1117 blobmsg_add_u32(b
, "rpfilter", st
.rpfilter
);
1118 if (st
.flags
& DEV_OPT_ACCEPTLOCAL
)
1119 blobmsg_add_u8(b
, "acceptlocal", st
.acceptlocal
);
1120 if (st
.flags
& DEV_OPT_IGMPVERSION
)
1121 blobmsg_add_u32(b
, "igmpversion", st
.igmpversion
);
1122 if (st
.flags
& DEV_OPT_MLDVERSION
)
1123 blobmsg_add_u32(b
, "mldversion", st
.mldversion
);
1124 if (st
.flags
& DEV_OPT_NEIGHREACHABLETIME
) {
1125 blobmsg_add_u32(b
, "neigh4reachabletime", st
.neigh4reachabletime
);
1126 blobmsg_add_u32(b
, "neigh6reachabletime", st
.neigh6reachabletime
);
1128 if (st
.flags
& DEV_OPT_NEIGHGCSTALETIME
) {
1129 blobmsg_add_u32(b
, "neigh4gcstaletime", st
.neigh4gcstaletime
);
1130 blobmsg_add_u32(b
, "neigh6gcstaletime", st
.neigh6gcstaletime
);
1132 if (st
.flags
& DEV_OPT_NEIGHLOCKTIME
)
1133 blobmsg_add_u32(b
, "neigh4locktime", st
.neigh4locktime
);
1134 if (st
.flags
& DEV_OPT_DADTRANSMITS
)
1135 blobmsg_add_u32(b
, "dadtransmits", st
.dadtransmits
);
1136 if (st
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
1137 blobmsg_add_u8(b
, "multicast_to_unicast", st
.multicast_to_unicast
);
1138 if (st
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1139 blobmsg_add_u32(b
, "multicast_router", st
.multicast_router
);
1140 if (st
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
)
1141 blobmsg_add_u8(b
, "multicast_fast_leave", st
.multicast_fast_leave
);
1142 if (st
.flags
& DEV_OPT_MULTICAST
)
1143 blobmsg_add_u8(b
, "multicast", st
.multicast
);
1144 if (st
.flags
& DEV_OPT_LEARNING
)
1145 blobmsg_add_u8(b
, "learning", st
.learning
);
1146 if (st
.flags
& DEV_OPT_UNICAST_FLOOD
)
1147 blobmsg_add_u8(b
, "unicast_flood", st
.unicast_flood
);
1148 if (st
.flags
& DEV_OPT_SENDREDIRECTS
)
1149 blobmsg_add_u8(b
, "sendredirects", st
.sendredirects
);
1150 if (st
.flags
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1151 blobmsg_add_u8(b
, "drop_v4_unicast_in_l2_multicast", st
.drop_v4_unicast_in_l2_multicast
);
1152 if (st
.flags
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1153 blobmsg_add_u8(b
, "drop_v6_unicast_in_l2_multicast", st
.drop_v6_unicast_in_l2_multicast
);
1154 if (st
.flags
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1155 blobmsg_add_u8(b
, "drop_gratuitous_arp", st
.drop_gratuitous_arp
);
1156 if (st
.flags
& DEV_OPT_DROP_UNSOLICITED_NA
)
1157 blobmsg_add_u8(b
, "drop_unsolicited_na", st
.drop_unsolicited_na
);
1158 if (st
.flags
& DEV_OPT_ARP_ACCEPT
)
1159 blobmsg_add_u8(b
, "arp_accept", st
.arp_accept
);
1162 s
= blobmsg_open_table(b
, "statistics");
1163 if (dev
->type
->dump_stats
)
1164 dev
->type
->dump_stats(dev
, b
);
1166 system_if_dump_stats(dev
, b
);
1167 blobmsg_close_table(b
, s
);
1170 static void __init
simple_device_type_init(void)
1172 device_type_add(&simple_device_type
);