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.
22 #include "interface.h"
29 BRIDGE_ATTR_FORWARD_DELAY
,
31 BRIDGE_ATTR_IGMP_SNOOP
,
32 BRIDGE_ATTR_AGEING_TIME
,
33 BRIDGE_ATTR_HELLO_TIME
,
35 BRIDGE_ATTR_BRIDGE_EMPTY
,
36 BRIDGE_ATTR_MULTICAST_QUERIER
,
38 BRIDGE_ATTR_ROBUSTNESS
,
39 BRIDGE_ATTR_QUERY_INTERVAL
,
40 BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
,
41 BRIDGE_ATTR_LAST_MEMBER_INTERVAL
,
42 BRIDGE_ATTR_VLAN_FILTERING
,
43 BRIDGE_ATTR_HAS_VLANS
,
44 BRIDGE_ATTR_STP_KERNEL
,
45 BRIDGE_ATTR_STP_PROTO
,
49 static const struct blobmsg_policy bridge_attrs
[__BRIDGE_ATTR_MAX
] = {
50 [BRIDGE_ATTR_PORTS
] = { "ports", BLOBMSG_TYPE_ARRAY
},
51 [BRIDGE_ATTR_STP
] = { "stp", BLOBMSG_TYPE_BOOL
},
52 [BRIDGE_ATTR_FORWARD_DELAY
] = { "forward_delay", BLOBMSG_TYPE_INT32
},
53 [BRIDGE_ATTR_PRIORITY
] = { "priority", BLOBMSG_TYPE_INT32
},
54 [BRIDGE_ATTR_AGEING_TIME
] = { "ageing_time", BLOBMSG_TYPE_INT32
},
55 [BRIDGE_ATTR_HELLO_TIME
] = { "hello_time", BLOBMSG_TYPE_INT32
},
56 [BRIDGE_ATTR_MAX_AGE
] = { "max_age", BLOBMSG_TYPE_INT32
},
57 [BRIDGE_ATTR_IGMP_SNOOP
] = { "igmp_snooping", BLOBMSG_TYPE_BOOL
},
58 [BRIDGE_ATTR_BRIDGE_EMPTY
] = { "bridge_empty", BLOBMSG_TYPE_BOOL
},
59 [BRIDGE_ATTR_MULTICAST_QUERIER
] = { "multicast_querier", BLOBMSG_TYPE_BOOL
},
60 [BRIDGE_ATTR_HASH_MAX
] = { "hash_max", BLOBMSG_TYPE_INT32
},
61 [BRIDGE_ATTR_ROBUSTNESS
] = { "robustness", BLOBMSG_TYPE_INT32
},
62 [BRIDGE_ATTR_QUERY_INTERVAL
] = { "query_interval", BLOBMSG_TYPE_INT32
},
63 [BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
] = { "query_response_interval", BLOBMSG_TYPE_INT32
},
64 [BRIDGE_ATTR_LAST_MEMBER_INTERVAL
] = { "last_member_interval", BLOBMSG_TYPE_INT32
},
65 [BRIDGE_ATTR_VLAN_FILTERING
] = { "vlan_filtering", BLOBMSG_TYPE_BOOL
},
66 [BRIDGE_ATTR_HAS_VLANS
] = { "__has_vlans", BLOBMSG_TYPE_BOOL
}, /* internal */
67 [BRIDGE_ATTR_STP_KERNEL
] = { "stp_kernel", BLOBMSG_TYPE_BOOL
},
68 [BRIDGE_ATTR_STP_PROTO
] = { "stp_proto", BLOBMSG_TYPE_STRING
},
71 static const struct uci_blob_param_info bridge_attr_info
[__BRIDGE_ATTR_MAX
] = {
72 [BRIDGE_ATTR_PORTS
] = { .type
= BLOBMSG_TYPE_STRING
},
75 static const struct uci_blob_param_list bridge_attr_list
= {
76 .n_params
= __BRIDGE_ATTR_MAX
,
77 .params
= bridge_attrs
,
78 .info
= bridge_attr_info
,
81 .next
= { &device_attr_list
},
84 static struct blob_buf b
;
85 static struct device
*bridge_create(const char *name
, struct device_type
*devtype
,
86 struct blob_attr
*attr
);
87 static void bridge_config_init(struct device
*dev
);
88 static void bridge_dev_vlan_update(struct device
*dev
);
89 static void bridge_free(struct device
*dev
);
90 static void bridge_stp_init(struct device
*dev
);
91 static void bridge_dump_info(struct device
*dev
, struct blob_buf
*b
);
92 static enum dev_change_type
93 bridge_reload(struct device
*dev
, struct blob_attr
*attr
);
95 static struct device_type bridge_device_type
= {
97 .config_params
= &bridge_attr_list
,
99 .bridge_capability
= true,
102 .create
= bridge_create
,
103 .config_init
= bridge_config_init
,
104 .vlan_update
= bridge_dev_vlan_update
,
105 .reload
= bridge_reload
,
107 .dump_info
= bridge_dump_info
,
108 .stp_init
= bridge_stp_init
,
111 struct bridge_state
{
113 device_state_cb set_state
;
115 struct blob_attr
*config_data
;
116 struct bridge_config config
;
117 struct blob_attr
*ports
;
122 struct uloop_timeout retry
;
123 struct bridge_member
*primary_port
;
124 struct vlist_tree members
;
129 struct bridge_member
{
130 struct vlist_node node
;
131 struct bridge_state
*bst
;
132 struct device_user dev
;
133 struct uloop_timeout check_timer
;
134 struct device_vlan_range
*extra_vlan
;
143 bridge_reset_primary(struct bridge_state
*bst
)
145 struct bridge_member
*bm
;
147 if (!bst
->primary_port
&&
148 (bst
->dev
.settings
.flags
& DEV_OPT_MACADDR
))
151 bst
->primary_port
= NULL
;
152 bst
->dev
.settings
.flags
&= ~DEV_OPT_MACADDR
;
153 vlist_for_each_element(&bst
->members
, bm
, node
) {
159 bst
->primary_port
= bm
;
160 if (bm
->dev
.dev
->settings
.flags
& DEV_OPT_MACADDR
)
161 macaddr
= bm
->dev
.dev
->settings
.macaddr
;
163 macaddr
= bm
->dev
.dev
->orig_settings
.macaddr
;
164 memcpy(bst
->dev
.settings
.macaddr
, macaddr
, 6);
165 bst
->dev
.settings
.flags
|= DEV_OPT_MACADDR
;
170 static struct bridge_vlan_port
*
171 bridge_find_vlan_member_port(struct bridge_member
*bm
, struct bridge_vlan
*vlan
)
173 struct bridge_vlan_hotplug_port
*port
;
174 const char *ifname
= bm
->dev
.dev
->ifname
;
177 for (i
= 0; i
< vlan
->n_ports
; i
++) {
178 if (strcmp(vlan
->ports
[i
].ifname
, ifname
) != 0)
181 return &vlan
->ports
[i
];
184 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
185 if (strcmp(port
->port
.ifname
, ifname
) != 0)
195 bridge_member_vlan_is_pvid(struct bridge_member
*bm
, struct bridge_vlan_port
*port
)
197 return (!bm
->pvid
&& (port
->flags
& BRVLAN_F_UNTAGGED
)) ||
198 (port
->flags
& BRVLAN_F_PVID
);
202 __bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
,
203 struct bridge_vlan_port
*port
, bool add
)
208 if (bm
->pvid
== vlan
->vid
)
209 flags
|= BRVLAN_F_PVID
;
211 system_bridge_vlan(port
->ifname
, vlan
->vid
, -1, add
, flags
);
215 bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
, bool add
)
217 struct bridge_vlan_port
*port
;
222 port
= bridge_find_vlan_member_port(bm
, vlan
);
226 if (bridge_member_vlan_is_pvid(bm
, port
))
227 bm
->pvid
= vlan
->vid
;
229 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
233 bridge_set_local_vlan(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
235 if (!vlan
->local
&& add
)
238 system_bridge_vlan(bst
->dev
.ifname
, vlan
->vid
, -1, add
, BRVLAN_F_SELF
);
242 bridge_set_local_vlans(struct bridge_state
*bst
, bool add
)
244 struct bridge_vlan
*vlan
;
246 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
247 bridge_set_local_vlan(bst
, vlan
, add
);
250 static struct bridge_vlan
*
251 bridge_recalc_member_pvid(struct bridge_member
*bm
)
253 struct bridge_state
*bst
= bm
->bst
;
254 struct bridge_vlan_port
*port
;
255 struct bridge_vlan
*vlan
, *ret
= NULL
;
257 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
258 port
= bridge_find_vlan_member_port(bm
, vlan
);
262 if (!bridge_member_vlan_is_pvid(bm
, port
))
266 if (port
->flags
& BRVLAN_F_PVID
)
274 bridge_set_vlan_state(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
276 struct bridge_member
*bm
;
277 struct bridge_vlan
*vlan2
;
279 bridge_set_local_vlan(bst
, vlan
, add
);
281 vlist_for_each_element(&bst
->members
, bm
, node
) {
282 struct bridge_vlan_port
*port
;
285 port
= bridge_find_vlan_member_port(bm
, vlan
);
290 if (bridge_member_vlan_is_pvid(bm
, port
))
291 bm
->pvid
= vlan
->vid
;
292 } else if (bm
->pvid
== vlan
->vid
) {
293 vlan2
= bridge_recalc_member_pvid(bm
);
294 if (vlan2
&& vlan2
->vid
!= vlan
->vid
) {
295 bridge_set_member_vlan(bm
, vlan2
, false);
296 bridge_set_member_vlan(bm
, vlan2
, true);
298 new_pvid
= vlan2
? vlan2
->vid
: 0;
304 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
311 bridge_disable_member(struct bridge_member
*bm
, bool keep_dev
)
313 struct bridge_state
*bst
= bm
->bst
;
314 struct bridge_vlan
*vlan
;
316 if (!bm
->present
|| !bm
->active
)
320 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
321 bridge_set_member_vlan(bm
, vlan
, false);
323 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
325 device_release(&bm
->dev
);
327 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
332 static void bridge_stp_notify(struct bridge_state
*bst
)
334 struct bridge_config
*cfg
= &bst
->config
;
336 if (!cfg
->stp
|| cfg
->stp_kernel
)
339 blob_buf_init(&b
, 0);
340 blobmsg_add_string(&b
, "name", bst
->dev
.ifname
);
342 blobmsg_add_string(&b
, "proto", cfg
->stp_proto
);
343 blobmsg_add_u32(&b
, "forward_delay", cfg
->forward_delay
);
344 blobmsg_add_u32(&b
, "hello_time", cfg
->hello_time
);
345 blobmsg_add_u32(&b
, "max_age", cfg
->max_age
);
346 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
)
347 blobmsg_add_u32(&b
, "ageing_time", cfg
->ageing_time
);
348 netifd_ubus_device_notify("stp_init", b
.head
, 1000);
352 bridge_enable_interface(struct bridge_state
*bst
)
354 struct device
*dev
= &bst
->dev
;
360 bridge_stp_notify(bst
);
361 ret
= system_bridge_addbr(dev
, &bst
->config
);
365 if (bst
->has_vlans
) {
366 /* delete default VLAN 1 */
367 system_bridge_vlan(bst
->dev
.ifname
, 1, -1, false, BRVLAN_F_SELF
);
369 bridge_set_local_vlans(bst
, true);
372 for (i
= 0; i
< dev
->n_extra_vlan
; i
++)
373 system_bridge_vlan(dev
->ifname
, dev
->extra_vlan
[i
].start
,
374 dev
->extra_vlan
[i
].end
, true, BRVLAN_F_SELF
);
381 bridge_stp_init(struct device
*dev
)
383 struct bridge_state
*bst
;
385 bst
= container_of(dev
, struct bridge_state
, dev
);
386 if (!bst
->config
.stp
|| !bst
->active
)
389 bridge_stp_notify(bst
);
390 system_bridge_set_stp_state(&bst
->dev
, false);
391 system_bridge_set_stp_state(&bst
->dev
, true);
395 bridge_disable_interface(struct bridge_state
*bst
)
400 system_bridge_delbr(&bst
->dev
);
405 bridge_member_add_extra_vlans(struct bridge_member
*bm
)
407 struct device
*dev
= bm
->dev
.dev
;
410 for (i
= 0; i
< dev
->n_extra_vlan
; i
++)
411 system_bridge_vlan(dev
->ifname
, dev
->extra_vlan
[i
].start
,
412 dev
->extra_vlan
[i
].end
, true, 0);
413 for (i
= 0; i
< bm
->n_extra_vlan
; i
++)
414 system_bridge_vlan(dev
->ifname
, bm
->extra_vlan
[i
].start
,
415 bm
->extra_vlan
[i
].end
, true, 0);
419 bridge_enable_member(struct bridge_member
*bm
)
421 struct bridge_state
*bst
= bm
->bst
;
422 struct bridge_vlan
*vlan
;
429 ret
= bridge_enable_interface(bst
);
433 /* Disable IPv6 for bridge members */
434 if (!(bm
->dev
.dev
->settings
.flags
& DEV_OPT_IPV6
)) {
435 bm
->dev
.dev
->settings
.ipv6
= 0;
436 bm
->dev
.dev
->settings
.flags
|= DEV_OPT_IPV6
;
439 ret
= device_claim(&bm
->dev
);
444 if (dev
->settings
.auth
&& !dev
->auth_status
)
450 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
452 D(DEVICE
, "Bridge device %s could not be added\n", bm
->dev
.dev
->ifname
);
457 if (bst
->has_vlans
) {
458 /* delete default VLAN 1 */
459 system_bridge_vlan(bm
->dev
.dev
->ifname
, 1, -1, false, 0);
461 bridge_member_add_extra_vlans(bm
);
462 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
463 bridge_set_member_vlan(bm
, vlan
, true);
466 device_set_present(&bst
->dev
, true);
467 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
475 device_release(&bm
->dev
);
481 bridge_remove_member(struct bridge_member
*bm
)
483 struct bridge_state
*bst
= bm
->bst
;
489 bridge_disable_member(bm
, false);
492 bm
->bst
->n_present
--;
494 if (bm
== bst
->primary_port
)
495 bridge_reset_primary(bst
);
497 if (bst
->config
.bridge_empty
)
500 bst
->force_active
= false;
501 if (bst
->n_present
== 0)
502 device_set_present(&bst
->dev
, false);
506 bridge_free_member(struct bridge_member
*bm
)
508 struct bridge_state
*bst
= bm
->bst
;
509 struct device
*dev
= bm
->dev
.dev
;
510 const char *ifname
= dev
->ifname
;
511 struct bridge_vlan
*vlan
;
513 bridge_remove_member(bm
);
516 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
517 struct bridge_vlan_hotplug_port
*port
, *tmp
;
518 bool free_port
= false;
520 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
) {
521 if (strcmp(port
->port
.ifname
, ifname
) != 0)
524 list_del(&port
->list
);
529 if (!free_port
|| !list_empty(&vlan
->hotplug_ports
) ||
530 vlan
->n_ports
|| vlan
->node
.version
!= -1)
533 vlist_delete(&bst
->dev
.vlans
, &vlan
->node
);
537 device_remove_user(&bm
->dev
);
538 uloop_timeout_cancel(&bm
->check_timer
);
541 * When reloading the config and moving a device from one bridge to
542 * another, the other bridge may have tried to claim this device
543 * before it was removed here.
544 * Ensure that claiming the device is retried by toggling its present
548 device_set_present(dev
, false);
549 device_set_present(dev
, true);
556 bridge_check_retry(struct bridge_state
*bst
)
561 uloop_timeout_set(&bst
->retry
, 100);
565 bridge_member_check_cb(struct uloop_timeout
*t
)
567 struct bridge_member
*bm
;
568 struct bridge_state
*bst
;
570 bm
= container_of(t
, struct bridge_member
, check_timer
);
573 if (system_bridge_vlan_check(&bst
->dev
, bm
->dev
.dev
->ifname
) <= 0)
576 bridge_disable_member(bm
, true);
577 bridge_enable_member(bm
);
581 bridge_member_cb(struct device_user
*dep
, enum device_event ev
)
583 struct bridge_member
*bm
= container_of(dep
, struct bridge_member
, dev
);
584 struct bridge_state
*bst
= bm
->bst
;
585 struct device
*dev
= dep
->dev
;
589 assert(!bm
->present
);
594 if (bst
->n_present
== 1)
595 device_set_present(&bst
->dev
, true);
597 case DEV_EVENT_AUTH_UP
:
598 if (!bst
->dev
.active
)
601 if (bridge_enable_member(bm
))
605 * Adding a bridge member can overwrite the bridge mtu
606 * in the kernel, apply the bridge settings in case the
609 system_if_apply_settings(&bst
->dev
, &bst
->dev
.settings
,
610 DEV_OPT_MTU
| DEV_OPT_MTU6
);
612 case DEV_EVENT_LINK_UP
:
614 uloop_timeout_set(&bm
->check_timer
, 1000);
616 case DEV_EVENT_LINK_DOWN
:
617 if (!dev
->settings
.auth
)
620 bridge_disable_member(bm
, true);
622 case DEV_EVENT_REMOVE
:
624 vlist_delete(&bst
->members
, &bm
->node
);
629 bridge_remove_member(bm
);
638 bridge_set_down(struct bridge_state
*bst
)
640 struct bridge_member
*bm
;
642 bst
->set_state(&bst
->dev
, false);
644 vlist_for_each_element(&bst
->members
, bm
, node
)
645 bridge_disable_member(bm
, false);
647 bridge_disable_interface(bst
);
653 bridge_set_up(struct bridge_state
*bst
)
655 struct bridge_member
*bm
;
658 bst
->has_vlans
= !avl_is_empty(&bst
->dev
.vlans
.avl
);
659 if (!bst
->n_present
) {
660 if (!bst
->force_active
)
663 ret
= bridge_enable_interface(bst
);
669 vlist_for_each_element(&bst
->members
, bm
, node
)
670 bridge_enable_member(bm
);
671 bridge_check_retry(bst
);
673 if (!bst
->force_active
&& !bst
->n_present
) {
674 /* initialization of all member interfaces failed */
675 bridge_disable_interface(bst
);
676 device_set_present(&bst
->dev
, false);
680 bridge_reset_primary(bst
);
681 ret
= bst
->set_state(&bst
->dev
, true);
683 bridge_set_down(bst
);
689 bridge_set_state(struct device
*dev
, bool up
)
691 struct bridge_state
*bst
;
693 bst
= container_of(dev
, struct bridge_state
, dev
);
696 return bridge_set_up(bst
);
698 return bridge_set_down(bst
);
701 static struct bridge_member
*
702 bridge_alloc_member(struct bridge_state
*bst
, const char *name
,
703 struct device
*dev
, bool hotplug
)
705 struct bridge_member
*bm
;
707 bm
= calloc(1, sizeof(*bm
) + strlen(name
) + 1);
712 bm
->dev
.cb
= bridge_member_cb
;
713 bm
->dev
.hotplug
= hotplug
;
714 bm
->check_timer
.cb
= bridge_member_check_cb
;
715 strcpy(bm
->name
, name
);
721 static void bridge_insert_member(struct bridge_member
*bm
, const char *name
)
723 struct bridge_state
*bst
= bm
->bst
;
724 bool hotplug
= bm
->dev
.hotplug
;
726 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
728 * Need to look up the bridge member again as the above
729 * created pointer will be freed in case the bridge member
732 bm
= vlist_find(&bst
->members
, name
, bm
, node
);
734 bm
->node
.version
= -1;
738 bridge_create_member(struct bridge_state
*bst
, const char *name
,
739 struct device
*dev
, bool hotplug
)
741 struct bridge_member
*bm
;
743 bm
= bridge_alloc_member(bst
, name
, dev
, hotplug
);
745 bridge_insert_member(bm
, name
);
749 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
750 struct vlist_node
*node_old
)
752 struct bridge_member
*bm
;
756 bm
= container_of(node_new
, struct bridge_member
, node
);
765 device_add_user(&bm
->dev
, dev
);
770 bm
= container_of(node_old
, struct bridge_member
, node
);
771 bridge_free_member(bm
);
777 bridge_add_member(struct bridge_state
*bst
, const char *name
)
781 dev
= device_get(name
, true);
785 bridge_create_member(bst
, name
, dev
, false);
788 static struct bridge_vlan
*
789 bridge_hotplug_get_vlan(struct bridge_state
*bst
, uint16_t vid
, bool create
)
791 struct bridge_vlan
*vlan
;
793 vlan
= vlist_find(&bst
->dev
.vlans
, &vid
, vlan
, node
);
797 vlan
= calloc(1, sizeof(*vlan
));
800 INIT_LIST_HEAD(&vlan
->hotplug_ports
);
801 vlist_add(&bst
->dev
.vlans
, &vlan
->node
, &vlan
->vid
);
802 vlan
->node
.version
= -1;
807 static struct bridge_vlan_hotplug_port
*
808 bridge_hotplug_get_vlan_port(struct bridge_vlan
*vlan
, const char *ifname
)
810 struct bridge_vlan_hotplug_port
*port
;
812 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
813 if (!strcmp(port
->port
.ifname
, ifname
))
820 bridge_hotplug_set_member_vlans(struct bridge_state
*bst
, struct blob_attr
*vlans
,
821 const char *ifname
, struct bridge_member
*bm
, bool add
)
823 struct device_vlan_range
*r
;
824 struct bridge_vlan
*vlan
;
825 struct blob_attr
*cur
;
833 bm
->n_extra_vlan
= 0;
834 n_vlans
= blobmsg_check_array(vlans
, BLOBMSG_TYPE_STRING
);
838 bm
->extra_vlan
= realloc(bm
->extra_vlan
, n_vlans
* sizeof(*bm
->extra_vlan
));
841 blobmsg_for_each_attr(cur
, vlans
, rem
) {
842 struct bridge_vlan_hotplug_port
*port
;
843 unsigned int vid
, vid_end
;
848 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
851 vid
= strtoul(blobmsg_get_string(cur
), &end
, 0);
853 if (!vid
|| vid
> 4095)
857 vid_end
= strtoul(end
+ 1, &end
, 0);
866 for (end
++; *end
; end
++) {
869 flags
|= BRVLAN_F_UNTAGGED
;
872 flags
|= BRVLAN_F_PVID
;
878 vlan
= bridge_hotplug_get_vlan(bst
, vid
, !!flags
);
879 if (!vlan
|| vid_end
> vid
) {
881 r
= &bm
->extra_vlan
[bm
->n_extra_vlan
++];
885 system_bridge_vlan(ifname
, vid
, vid_end
, true, 0);
886 } else if (bm
->active
) {
887 system_bridge_vlan(ifname
, vid
, vid_end
, false, 0);
893 vlan
->pending
= false;
894 bridge_set_vlan_state(bst
, vlan
, true);
897 port
= bridge_hotplug_get_vlan_port(vlan
, ifname
);
902 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, false);
903 list_del(&port
->list
);
909 if (port
->port
.flags
== flags
)
912 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, false);
913 port
->port
.flags
= flags
;
914 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, true);
918 port
= calloc_a(sizeof(*port
), &name_buf
, strlen(ifname
) + 1);
922 port
->port
.flags
= flags
;
923 port
->port
.ifname
= strcpy(name_buf
, ifname
);
924 list_add_tail(&port
->list
, &vlan
->hotplug_ports
);
929 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, true);
934 bridge_hotplug_add(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
936 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
937 struct bridge_member
*bm
;
938 bool new_entry
= false;
940 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
943 bm
= bridge_alloc_member(bst
, member
->ifname
, member
, true);
945 bridge_hotplug_set_member_vlans(bst
, vlan
, member
->ifname
, bm
, true);
947 bridge_insert_member(bm
, member
->ifname
);
953 bridge_hotplug_del(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
955 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
956 struct bridge_member
*bm
;
958 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
960 return UBUS_STATUS_NOT_FOUND
;
962 bridge_hotplug_set_member_vlans(bst
, vlan
, member
->ifname
, bm
, false);
963 if (!bm
->dev
.hotplug
)
966 vlist_delete(&bst
->members
, &bm
->node
);
971 bridge_hotplug_prepare(struct device
*dev
, struct device
**bridge_dev
)
973 struct bridge_state
*bst
;
978 bst
= container_of(dev
, struct bridge_state
, dev
);
979 bst
->force_active
= true;
980 device_set_present(&bst
->dev
, true);
985 static const struct device_hotplug_ops bridge_ops
= {
986 .prepare
= bridge_hotplug_prepare
,
987 .add
= bridge_hotplug_add
,
988 .del
= bridge_hotplug_del
992 bridge_free(struct device
*dev
)
994 struct bridge_state
*bst
;
996 bst
= container_of(dev
, struct bridge_state
, dev
);
997 vlist_flush_all(&bst
->members
);
998 vlist_flush_all(&dev
->vlans
);
999 kvlist_free(&dev
->vlan_aliases
);
1000 free(bst
->config_data
);
1005 bridge_dump_port(struct blob_buf
*b
, struct bridge_vlan_port
*port
)
1007 bool tagged
= !(port
->flags
& BRVLAN_F_UNTAGGED
);
1008 bool pvid
= (port
->flags
& BRVLAN_F_PVID
);
1010 blobmsg_printf(b
, NULL
, "%s%s%s%s", port
->ifname
,
1011 tagged
|| pvid
? ":" : "",
1017 bridge_dump_vlan(struct blob_buf
*b
, struct bridge_vlan
*vlan
)
1019 struct bridge_vlan_hotplug_port
*port
;
1023 c
= blobmsg_open_table(b
, NULL
);
1025 blobmsg_add_u32(b
, "id", vlan
->vid
);
1026 blobmsg_add_u8(b
, "local", vlan
->local
);
1028 p
= blobmsg_open_array(b
, "ports");
1030 for (i
= 0; i
< vlan
->n_ports
; i
++)
1031 bridge_dump_port(b
, &vlan
->ports
[i
]);
1033 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
1034 bridge_dump_port(b
, &port
->port
);
1036 blobmsg_close_array(b
, p
);
1038 blobmsg_close_table(b
, c
);
1042 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
1044 struct bridge_config
*cfg
;
1045 struct bridge_state
*bst
;
1046 struct bridge_member
*bm
;
1047 struct bridge_vlan
*vlan
;
1051 bst
= container_of(dev
, struct bridge_state
, dev
);
1054 system_if_dump_info(dev
, b
);
1055 list
= blobmsg_open_array(b
, "bridge-members");
1057 vlist_for_each_element(&bst
->members
, bm
, node
) {
1058 if (bm
->dev
.dev
->hidden
)
1061 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
1064 blobmsg_close_array(b
, list
);
1066 c
= blobmsg_open_table(b
, "bridge-attributes");
1068 blobmsg_add_u8(b
, "stp", cfg
->stp
);
1069 blobmsg_add_u32(b
, "forward_delay", cfg
->forward_delay
);
1070 blobmsg_add_u32(b
, "priority", cfg
->priority
);
1071 blobmsg_add_u32(b
, "ageing_time", cfg
->ageing_time
);
1072 blobmsg_add_u32(b
, "hello_time", cfg
->hello_time
);
1073 blobmsg_add_u32(b
, "max_age", cfg
->max_age
);
1074 blobmsg_add_u8(b
, "igmp_snooping", cfg
->igmp_snoop
);
1075 blobmsg_add_u8(b
, "bridge_empty", cfg
->bridge_empty
);
1076 blobmsg_add_u8(b
, "multicast_querier", cfg
->multicast_querier
);
1077 blobmsg_add_u32(b
, "hash_max", cfg
->hash_max
);
1078 blobmsg_add_u32(b
, "robustness", cfg
->robustness
);
1079 blobmsg_add_u32(b
, "query_interval", cfg
->query_interval
);
1080 blobmsg_add_u32(b
, "query_response_interval", cfg
->query_response_interval
);
1081 blobmsg_add_u32(b
, "last_member_interval", cfg
->last_member_interval
);
1082 blobmsg_add_u8(b
, "vlan_filtering", cfg
->vlan_filtering
);
1083 blobmsg_add_u8(b
, "stp_kernel", cfg
->stp_kernel
);
1085 blobmsg_add_string(b
, "stp_proto", cfg
->stp_proto
);
1087 blobmsg_close_table(b
, c
);
1089 if (avl_is_empty(&dev
->vlans
.avl
))
1092 list
= blobmsg_open_array(b
, "bridge-vlans");
1094 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
1095 bridge_dump_vlan(b
, vlan
);
1097 blobmsg_close_array(b
, list
);
1101 bridge_config_init(struct device
*dev
)
1103 struct bridge_state
*bst
;
1104 struct bridge_vlan
*vlan
;
1105 struct blob_attr
*cur
;
1109 bst
= container_of(dev
, struct bridge_state
, dev
);
1111 if (bst
->config
.bridge_empty
) {
1112 bst
->force_active
= true;
1113 device_set_present(&bst
->dev
, true);
1117 vlist_update(&bst
->members
);
1119 blobmsg_for_each_attr(cur
, bst
->ports
, rem
) {
1120 bridge_add_member(bst
, blobmsg_data(cur
));
1124 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
1125 for (i
= 0; i
< vlan
->n_ports
; i
++)
1126 bridge_add_member(bst
, vlan
->ports
[i
].ifname
);
1128 vlist_flush(&bst
->members
);
1129 bridge_check_retry(bst
);
1133 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
1135 struct bridge_config
*cfg
= &bst
->config
;
1136 struct blob_attr
*cur
;
1139 memset(cfg
, 0, sizeof(*cfg
));
1141 cfg
->stp_kernel
= false;
1142 cfg
->robustness
= 2;
1143 cfg
->igmp_snoop
= false;
1144 cfg
->multicast_querier
= false;
1145 cfg
->query_interval
= 12500;
1146 cfg
->query_response_interval
= 1000;
1147 cfg
->last_member_interval
= 100;
1148 cfg
->hash_max
= 512;
1149 cfg
->bridge_empty
= false;
1150 cfg
->priority
= 0x7FFF;
1151 cfg
->vlan_filtering
= false;
1153 cfg
->forward_delay
= 8;
1155 cfg
->hello_time
= 1;
1157 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
1158 cfg
->stp
= blobmsg_get_bool(cur
);
1160 if ((cur
= tb
[BRIDGE_ATTR_STP_KERNEL
]))
1161 cfg
->stp
= blobmsg_get_bool(cur
);
1163 if ((cur
= tb
[BRIDGE_ATTR_STP_PROTO
]))
1164 cfg
->stp_proto
= blobmsg_get_string(cur
);
1166 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
1167 cfg
->forward_delay
= blobmsg_get_u32(cur
);
1169 if ((cur
= tb
[BRIDGE_ATTR_PRIORITY
]))
1170 cfg
->priority
= blobmsg_get_u32(cur
);
1172 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
1173 cfg
->multicast_querier
= cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
1175 if ((cur
= tb
[BRIDGE_ATTR_MULTICAST_QUERIER
]))
1176 cfg
->multicast_querier
= blobmsg_get_bool(cur
);
1178 if ((cur
= tb
[BRIDGE_ATTR_HASH_MAX
]))
1179 cfg
->hash_max
= blobmsg_get_u32(cur
);
1181 if ((cur
= tb
[BRIDGE_ATTR_ROBUSTNESS
])) {
1182 cfg
->robustness
= blobmsg_get_u32(cur
);
1183 cfg
->flags
|= BRIDGE_OPT_ROBUSTNESS
;
1186 if ((cur
= tb
[BRIDGE_ATTR_QUERY_INTERVAL
])) {
1187 cfg
->query_interval
= blobmsg_get_u32(cur
);
1188 cfg
->flags
|= BRIDGE_OPT_QUERY_INTERVAL
;
1191 if ((cur
= tb
[BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
])) {
1192 cfg
->query_response_interval
= blobmsg_get_u32(cur
);
1193 cfg
->flags
|= BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
;
1196 if ((cur
= tb
[BRIDGE_ATTR_LAST_MEMBER_INTERVAL
])) {
1197 cfg
->last_member_interval
= blobmsg_get_u32(cur
);
1198 cfg
->flags
|= BRIDGE_OPT_LAST_MEMBER_INTERVAL
;
1201 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
1202 cfg
->ageing_time
= blobmsg_get_u32(cur
);
1203 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
1206 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
]))
1207 cfg
->hello_time
= blobmsg_get_u32(cur
);
1209 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
]))
1210 cfg
->max_age
= blobmsg_get_u32(cur
);
1212 if ((cur
= tb
[BRIDGE_ATTR_BRIDGE_EMPTY
]))
1213 cfg
->bridge_empty
= blobmsg_get_bool(cur
);
1215 if ((cur
= tb
[BRIDGE_ATTR_VLAN_FILTERING
]))
1216 cfg
->vlan_filtering
= blobmsg_get_bool(cur
);
1219 static enum dev_change_type
1220 bridge_reload(struct device
*dev
, struct blob_attr
*attr
)
1222 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
1223 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
1224 enum dev_change_type ret
= DEV_CONFIG_APPLIED
;
1225 struct bridge_state
*bst
;
1226 unsigned long diff
[2];
1228 BUILD_BUG_ON(sizeof(diff
) < __BRIDGE_ATTR_MAX
/ BITS_PER_LONG
);
1229 BUILD_BUG_ON(sizeof(diff
) < __DEV_ATTR_MAX
/ BITS_PER_LONG
);
1231 bst
= container_of(dev
, struct bridge_state
, dev
);
1232 attr
= blob_memdup(attr
);
1234 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
1235 blob_data(attr
), blob_len(attr
));
1236 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
1237 blob_data(attr
), blob_len(attr
));
1239 if (tb_dev
[DEV_ATTR_MACADDR
])
1240 bst
->primary_port
= NULL
;
1242 bst
->ports
= tb_br
[BRIDGE_ATTR_PORTS
];
1243 device_init_settings(dev
, tb_dev
);
1244 bridge_apply_settings(bst
, tb_br
);
1246 if (bst
->config_data
) {
1247 struct blob_attr
*otb_dev
[__DEV_ATTR_MAX
];
1248 struct blob_attr
*otb_br
[__BRIDGE_ATTR_MAX
];
1250 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, otb_dev
,
1251 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1253 diff
[0] = diff
[1] = 0;
1254 uci_blob_diff(tb_dev
, otb_dev
, &device_attr_list
, diff
);
1255 if (diff
[0] | diff
[1]) {
1256 ret
= DEV_CONFIG_RESTART
;
1257 D(DEVICE
, "Bridge %s device attributes have changed, diff=[%lx %lx]\n",
1258 dev
->ifname
, diff
[1], diff
[0]);
1261 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, otb_br
,
1262 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1264 diff
[0] = diff
[1] = 0;
1265 uci_blob_diff(tb_br
, otb_br
, &bridge_attr_list
, diff
);
1266 if (diff
[0] & ~(1 << BRIDGE_ATTR_PORTS
)) {
1267 ret
= DEV_CONFIG_RESTART
;
1268 D(DEVICE
, "Bridge %s attributes have changed, diff=[%lx %lx]\n",
1269 dev
->ifname
, diff
[1], diff
[0]);
1272 bridge_config_init(dev
);
1275 free(bst
->config_data
);
1276 bst
->config_data
= attr
;
1281 bridge_retry_members(struct uloop_timeout
*timeout
)
1283 struct bridge_state
*bst
= container_of(timeout
, struct bridge_state
, retry
);
1284 struct bridge_member
*bm
;
1287 vlist_for_each_element(&bst
->members
, bm
, node
) {
1291 if (!bm
->dev
.dev
->present
)
1296 bridge_enable_member(bm
);
1300 static int bridge_avl_cmp_u16(const void *k1
, const void *k2
, void *ptr
)
1302 const uint16_t *i1
= k1
, *i2
= k2
;
1308 bridge_vlan_equal(struct bridge_vlan
*v1
, struct bridge_vlan
*v2
)
1312 if (v1
->n_ports
!= v2
->n_ports
)
1315 for (i
= 0; i
< v1
->n_ports
; i
++)
1316 if (v1
->ports
[i
].flags
!= v2
->ports
[i
].flags
||
1317 strcmp(v1
->ports
[i
].ifname
, v2
->ports
[i
].ifname
) != 0)
1324 bridge_vlan_free(struct bridge_vlan
*vlan
)
1326 struct bridge_vlan_hotplug_port
*port
, *tmp
;
1331 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
)
1338 bridge_vlan_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
1339 struct vlist_node
*node_old
)
1341 struct bridge_state
*bst
= container_of(tree
, struct bridge_state
, dev
.vlans
);
1342 struct bridge_vlan
*vlan_new
= NULL
, *vlan_old
= NULL
;
1344 if (!bst
->has_vlans
|| !bst
->active
)
1348 vlan_old
= container_of(node_old
, struct bridge_vlan
, node
);
1350 vlan_new
= container_of(node_new
, struct bridge_vlan
, node
);
1352 if (node_new
&& node_old
&& bridge_vlan_equal(vlan_old
, vlan_new
)) {
1353 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1358 bridge_set_vlan_state(bst
, vlan_old
, false);
1360 if (node_old
&& node_new
)
1361 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1364 vlan_new
->pending
= true;
1366 bst
->dev
.config_pending
= true;
1369 bridge_vlan_free(vlan_old
);
1373 bridge_dev_vlan_update(struct device
*dev
)
1375 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
1376 struct bridge_vlan
*vlan
;
1378 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
1382 vlan
->pending
= false;
1383 bridge_set_vlan_state(bst
, vlan
, true);
1387 static struct device
*
1388 bridge_create(const char *name
, struct device_type
*devtype
,
1389 struct blob_attr
*attr
)
1391 struct bridge_state
*bst
;
1392 struct device
*dev
= NULL
;
1394 bst
= calloc(1, sizeof(*bst
));
1400 if (device_init(dev
, devtype
, name
) < 0) {
1401 device_cleanup(dev
);
1406 dev
->config_pending
= true;
1407 bst
->retry
.cb
= bridge_retry_members
;
1409 bst
->set_state
= dev
->set_state
;
1410 dev
->set_state
= bridge_set_state
;
1412 dev
->hotplug_ops
= &bridge_ops
;
1414 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
1415 bst
->members
.keep_old
= true;
1417 vlist_init(&dev
->vlans
, bridge_avl_cmp_u16
, bridge_vlan_update
);
1419 bridge_reload(dev
, attr
);
1424 static void __init
bridge_device_type_init(void)
1426 device_type_add(&bridge_device_type
);