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"
28 BRIDGE_ATTR_FORWARD_DELAY
,
30 BRIDGE_ATTR_IGMP_SNOOP
,
31 BRIDGE_ATTR_AGEING_TIME
,
32 BRIDGE_ATTR_HELLO_TIME
,
34 BRIDGE_ATTR_BRIDGE_EMPTY
,
35 BRIDGE_ATTR_MULTICAST_QUERIER
,
37 BRIDGE_ATTR_ROBUSTNESS
,
38 BRIDGE_ATTR_QUERY_INTERVAL
,
39 BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
,
40 BRIDGE_ATTR_LAST_MEMBER_INTERVAL
,
41 BRIDGE_ATTR_VLAN_FILTERING
,
42 BRIDGE_ATTR_HAS_VLANS
,
46 static const struct blobmsg_policy bridge_attrs
[__BRIDGE_ATTR_MAX
] = {
47 [BRIDGE_ATTR_PORTS
] = { "ports", BLOBMSG_TYPE_ARRAY
},
48 [BRIDGE_ATTR_STP
] = { "stp", BLOBMSG_TYPE_BOOL
},
49 [BRIDGE_ATTR_FORWARD_DELAY
] = { "forward_delay", BLOBMSG_TYPE_INT32
},
50 [BRIDGE_ATTR_PRIORITY
] = { "priority", BLOBMSG_TYPE_INT32
},
51 [BRIDGE_ATTR_AGEING_TIME
] = { "ageing_time", BLOBMSG_TYPE_INT32
},
52 [BRIDGE_ATTR_HELLO_TIME
] = { "hello_time", BLOBMSG_TYPE_INT32
},
53 [BRIDGE_ATTR_MAX_AGE
] = { "max_age", BLOBMSG_TYPE_INT32
},
54 [BRIDGE_ATTR_IGMP_SNOOP
] = { "igmp_snooping", BLOBMSG_TYPE_BOOL
},
55 [BRIDGE_ATTR_BRIDGE_EMPTY
] = { "bridge_empty", BLOBMSG_TYPE_BOOL
},
56 [BRIDGE_ATTR_MULTICAST_QUERIER
] = { "multicast_querier", BLOBMSG_TYPE_BOOL
},
57 [BRIDGE_ATTR_HASH_MAX
] = { "hash_max", BLOBMSG_TYPE_INT32
},
58 [BRIDGE_ATTR_ROBUSTNESS
] = { "robustness", BLOBMSG_TYPE_INT32
},
59 [BRIDGE_ATTR_QUERY_INTERVAL
] = { "query_interval", BLOBMSG_TYPE_INT32
},
60 [BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
] = { "query_response_interval", BLOBMSG_TYPE_INT32
},
61 [BRIDGE_ATTR_LAST_MEMBER_INTERVAL
] = { "last_member_interval", BLOBMSG_TYPE_INT32
},
62 [BRIDGE_ATTR_VLAN_FILTERING
] = { "vlan_filtering", BLOBMSG_TYPE_BOOL
},
63 [BRIDGE_ATTR_HAS_VLANS
] = { "__has_vlans", BLOBMSG_TYPE_BOOL
}, /* internal */
66 static const struct uci_blob_param_info bridge_attr_info
[__BRIDGE_ATTR_MAX
] = {
67 [BRIDGE_ATTR_PORTS
] = { .type
= BLOBMSG_TYPE_STRING
},
70 static const struct uci_blob_param_list bridge_attr_list
= {
71 .n_params
= __BRIDGE_ATTR_MAX
,
72 .params
= bridge_attrs
,
73 .info
= bridge_attr_info
,
76 .next
= { &device_attr_list
},
79 static struct device
*bridge_create(const char *name
, struct device_type
*devtype
,
80 struct blob_attr
*attr
);
81 static void bridge_config_init(struct device
*dev
);
82 static void bridge_dev_vlan_update(struct device
*dev
);
83 static void bridge_free(struct device
*dev
);
84 static void bridge_dump_info(struct device
*dev
, struct blob_buf
*b
);
85 static enum dev_change_type
86 bridge_reload(struct device
*dev
, struct blob_attr
*attr
);
88 static struct device_type bridge_device_type
= {
90 .config_params
= &bridge_attr_list
,
92 .bridge_capability
= true,
95 .create
= bridge_create
,
96 .config_init
= bridge_config_init
,
97 .vlan_update
= bridge_dev_vlan_update
,
98 .reload
= bridge_reload
,
100 .dump_info
= bridge_dump_info
,
103 struct bridge_state
{
105 device_state_cb set_state
;
107 struct blob_attr
*config_data
;
108 struct bridge_config config
;
109 struct blob_attr
*ports
;
114 struct uloop_timeout retry
;
115 struct bridge_member
*primary_port
;
116 struct vlist_tree members
;
121 struct bridge_member
{
122 struct vlist_node node
;
123 struct bridge_state
*bst
;
124 struct device_user dev
;
131 struct bridge_vlan_hotplug_port
{
132 struct list_head list
;
133 struct bridge_vlan_port port
;
137 bridge_reset_primary(struct bridge_state
*bst
)
139 struct bridge_member
*bm
;
141 if (!bst
->primary_port
&&
142 (bst
->dev
.settings
.flags
& DEV_OPT_MACADDR
))
145 bst
->primary_port
= NULL
;
146 bst
->dev
.settings
.flags
&= ~DEV_OPT_MACADDR
;
147 vlist_for_each_element(&bst
->members
, bm
, node
) {
153 bst
->primary_port
= bm
;
154 if (bm
->dev
.dev
->settings
.flags
& DEV_OPT_MACADDR
)
155 macaddr
= bm
->dev
.dev
->settings
.macaddr
;
157 macaddr
= bm
->dev
.dev
->orig_settings
.macaddr
;
158 memcpy(bst
->dev
.settings
.macaddr
, macaddr
, 6);
159 bst
->dev
.settings
.flags
|= DEV_OPT_MACADDR
;
164 static struct bridge_vlan_port
*
165 bridge_find_vlan_member_port(struct bridge_member
*bm
, struct bridge_vlan
*vlan
)
167 struct bridge_vlan_hotplug_port
*port
;
168 const char *ifname
= bm
->dev
.dev
->ifname
;
171 for (i
= 0; i
< vlan
->n_ports
; i
++) {
172 if (strcmp(vlan
->ports
[i
].ifname
, ifname
) != 0)
175 return &vlan
->ports
[i
];
178 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
179 if (strcmp(port
->port
.ifname
, ifname
) != 0)
189 bridge_member_vlan_is_pvid(struct bridge_member
*bm
, struct bridge_vlan_port
*port
)
191 return (!bm
->pvid
&& (port
->flags
& BRVLAN_F_UNTAGGED
)) ||
192 (port
->flags
& BRVLAN_F_PVID
);
196 __bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
,
197 struct bridge_vlan_port
*port
, bool add
)
202 if (bm
->pvid
== vlan
->vid
)
203 flags
|= BRVLAN_F_PVID
;
205 system_bridge_vlan(port
->ifname
, vlan
->vid
, add
, flags
);
209 bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
, bool add
)
211 struct bridge_vlan_port
*port
;
216 port
= bridge_find_vlan_member_port(bm
, vlan
);
220 if (bridge_member_vlan_is_pvid(bm
, port
))
221 bm
->pvid
= vlan
->vid
;
223 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
227 bridge_set_local_vlan(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
229 if (!vlan
->local
&& add
)
232 system_bridge_vlan(bst
->dev
.ifname
, vlan
->vid
, add
, BRVLAN_F_SELF
);
236 bridge_set_local_vlans(struct bridge_state
*bst
, bool add
)
238 struct bridge_vlan
*vlan
;
240 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
241 bridge_set_local_vlan(bst
, vlan
, add
);
244 static struct bridge_vlan
*
245 bridge_recalc_member_pvid(struct bridge_member
*bm
)
247 struct bridge_state
*bst
= bm
->bst
;
248 struct bridge_vlan_port
*port
;
249 struct bridge_vlan
*vlan
, *ret
= NULL
;
251 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
252 port
= bridge_find_vlan_member_port(bm
, vlan
);
256 if (!bridge_member_vlan_is_pvid(bm
, port
))
260 if (port
->flags
& BRVLAN_F_PVID
)
268 bridge_set_vlan_state(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
270 struct bridge_member
*bm
;
271 struct bridge_vlan
*vlan2
;
273 bridge_set_local_vlan(bst
, vlan
, add
);
275 vlist_for_each_element(&bst
->members
, bm
, node
) {
276 struct bridge_vlan_port
*port
;
279 port
= bridge_find_vlan_member_port(bm
, vlan
);
284 if (bridge_member_vlan_is_pvid(bm
, port
))
285 bm
->pvid
= vlan
->vid
;
286 } else if (bm
->pvid
== vlan
->vid
) {
287 vlan2
= bridge_recalc_member_pvid(bm
);
288 if (vlan2
&& vlan2
->vid
!= vlan
->vid
) {
289 bridge_set_member_vlan(bm
, vlan2
, false);
290 bridge_set_member_vlan(bm
, vlan2
, true);
292 new_pvid
= vlan2
? vlan2
->vid
: 0;
298 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
305 bridge_disable_member(struct bridge_member
*bm
, bool keep_dev
)
307 struct bridge_state
*bst
= bm
->bst
;
308 struct bridge_vlan
*vlan
;
310 if (!bm
->present
|| !bm
->active
)
314 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
315 bridge_set_member_vlan(bm
, vlan
, false);
317 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
319 device_release(&bm
->dev
);
321 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
327 bridge_enable_interface(struct bridge_state
*bst
)
334 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
338 if (bst
->has_vlans
) {
339 /* delete default VLAN 1 */
340 system_bridge_vlan(bst
->dev
.ifname
, 1, false, BRVLAN_F_SELF
);
342 bridge_set_local_vlans(bst
, true);
350 bridge_disable_interface(struct bridge_state
*bst
)
355 system_bridge_delbr(&bst
->dev
);
360 bridge_enable_member(struct bridge_member
*bm
)
362 struct bridge_state
*bst
= bm
->bst
;
363 struct bridge_vlan
*vlan
;
370 ret
= bridge_enable_interface(bst
);
374 /* Disable IPv6 for bridge members */
375 if (!(bm
->dev
.dev
->settings
.flags
& DEV_OPT_IPV6
)) {
376 bm
->dev
.dev
->settings
.ipv6
= 0;
377 bm
->dev
.dev
->settings
.flags
|= DEV_OPT_IPV6
;
380 ret
= device_claim(&bm
->dev
);
385 if (dev
->settings
.auth
&& !dev
->auth_status
)
391 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
393 D(DEVICE
, "Bridge device %s could not be added\n", bm
->dev
.dev
->ifname
);
398 if (bst
->has_vlans
) {
399 /* delete default VLAN 1 */
400 system_bridge_vlan(bm
->dev
.dev
->ifname
, 1, false, 0);
402 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
403 bridge_set_member_vlan(bm
, vlan
, true);
406 device_set_present(&bst
->dev
, true);
407 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
415 device_release(&bm
->dev
);
421 bridge_remove_member(struct bridge_member
*bm
)
423 struct bridge_state
*bst
= bm
->bst
;
429 bridge_disable_member(bm
, false);
432 bm
->bst
->n_present
--;
434 if (bm
== bst
->primary_port
)
435 bridge_reset_primary(bst
);
437 if (bst
->config
.bridge_empty
)
440 bst
->force_active
= false;
441 if (bst
->n_present
== 0)
442 device_set_present(&bst
->dev
, false);
446 bridge_free_member(struct bridge_member
*bm
)
448 struct bridge_state
*bst
= bm
->bst
;
449 struct device
*dev
= bm
->dev
.dev
;
450 const char *ifname
= dev
->ifname
;
451 struct bridge_vlan
*vlan
;
453 bridge_remove_member(bm
);
456 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
457 struct bridge_vlan_hotplug_port
*port
, *tmp
;
458 bool free_port
= false;
460 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
) {
461 if (strcmp(port
->port
.ifname
, ifname
) != 0)
464 list_del(&port
->list
);
469 if (!free_port
|| !list_empty(&vlan
->hotplug_ports
) ||
470 vlan
->n_ports
|| vlan
->node
.version
!= -1)
473 vlist_delete(&bst
->dev
.vlans
, &vlan
->node
);
479 device_remove_user(&bm
->dev
);
482 * When reloading the config and moving a device from one bridge to
483 * another, the other bridge may have tried to claim this device
484 * before it was removed here.
485 * Ensure that claiming the device is retried by toggling its present
489 device_set_present(dev
, false);
490 device_set_present(dev
, true);
499 bridge_check_retry(struct bridge_state
*bst
)
504 uloop_timeout_set(&bst
->retry
, 100);
508 bridge_member_cb(struct device_user
*dep
, enum device_event ev
)
510 struct bridge_member
*bm
= container_of(dep
, struct bridge_member
, dev
);
511 struct bridge_state
*bst
= bm
->bst
;
512 struct device
*dev
= dep
->dev
;
516 assert(!bm
->present
);
521 if (bst
->n_present
== 1)
522 device_set_present(&bst
->dev
, true);
524 case DEV_EVENT_AUTH_UP
:
525 if (!bst
->dev
.active
)
528 if (bridge_enable_member(bm
))
532 * Adding a bridge member can overwrite the bridge mtu
533 * in the kernel, apply the bridge settings in case the
536 system_if_apply_settings(&bst
->dev
, &bst
->dev
.settings
,
537 DEV_OPT_MTU
| DEV_OPT_MTU6
);
539 case DEV_EVENT_LINK_DOWN
:
540 if (!dev
->settings
.auth
)
543 bridge_disable_member(bm
, true);
545 case DEV_EVENT_REMOVE
:
547 vlist_delete(&bst
->members
, &bm
->node
);
552 bridge_remove_member(bm
);
561 bridge_set_down(struct bridge_state
*bst
)
563 struct bridge_member
*bm
;
565 bst
->set_state(&bst
->dev
, false);
567 vlist_for_each_element(&bst
->members
, bm
, node
)
568 bridge_disable_member(bm
, false);
570 bridge_disable_interface(bst
);
576 bridge_set_up(struct bridge_state
*bst
)
578 struct bridge_member
*bm
;
581 bst
->has_vlans
= !avl_is_empty(&bst
->dev
.vlans
.avl
);
582 if (!bst
->n_present
) {
583 if (!bst
->force_active
)
586 ret
= bridge_enable_interface(bst
);
592 vlist_for_each_element(&bst
->members
, bm
, node
)
593 bridge_enable_member(bm
);
594 bridge_check_retry(bst
);
596 if (!bst
->force_active
&& !bst
->n_present
) {
597 /* initialization of all member interfaces failed */
598 bridge_disable_interface(bst
);
599 device_set_present(&bst
->dev
, false);
603 bridge_reset_primary(bst
);
604 ret
= bst
->set_state(&bst
->dev
, true);
606 bridge_set_down(bst
);
612 bridge_set_state(struct device
*dev
, bool up
)
614 struct bridge_state
*bst
;
616 bst
= container_of(dev
, struct bridge_state
, dev
);
619 return bridge_set_up(bst
);
621 return bridge_set_down(bst
);
624 static struct bridge_member
*
625 bridge_create_member(struct bridge_state
*bst
, const char *name
,
626 struct device
*dev
, bool hotplug
)
628 struct bridge_member
*bm
;
630 bm
= calloc(1, sizeof(*bm
) + strlen(name
) + 1);
635 bm
->dev
.cb
= bridge_member_cb
;
636 bm
->dev
.hotplug
= hotplug
;
637 strcpy(bm
->name
, name
);
639 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
641 * Need to look up the bridge member again as the above
642 * created pointer will be freed in case the bridge member
645 bm
= vlist_find(&bst
->members
, name
, bm
, node
);
647 bm
->node
.version
= -1;
653 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
654 struct vlist_node
*node_old
)
656 struct bridge_member
*bm
;
660 bm
= container_of(node_new
, struct bridge_member
, node
);
669 device_add_user(&bm
->dev
, dev
);
674 bm
= container_of(node_old
, struct bridge_member
, node
);
675 bridge_free_member(bm
);
681 bridge_add_member(struct bridge_state
*bst
, const char *name
)
685 dev
= device_get(name
, true);
689 bridge_create_member(bst
, name
, dev
, false);
692 static struct bridge_vlan
*
693 bridge_hotplug_get_vlan(struct bridge_state
*bst
, unsigned int vid
)
695 struct bridge_vlan
*vlan
;
697 vlan
= vlist_find(&bst
->dev
.vlans
, &vid
, vlan
, node
);
701 vlan
= calloc(1, sizeof(*vlan
));
704 INIT_LIST_HEAD(&vlan
->hotplug_ports
);
705 vlist_add(&bst
->dev
.vlans
, &vlan
->node
, &vlan
->vid
);
706 vlan
->node
.version
= -1;
711 static struct bridge_vlan_hotplug_port
*
712 bridge_hotplug_get_vlan_port(struct bridge_vlan
*vlan
, const char *ifname
)
714 struct bridge_vlan_hotplug_port
*port
;
716 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
717 if (!strcmp(port
->port
.ifname
, ifname
))
724 bridge_hotplug_set_member_vlans(struct bridge_state
*bst
, struct blob_attr
*vlans
,
725 const char *ifname
, struct bridge_member
*bm
, bool add
)
727 struct bridge_vlan
*vlan
;
728 struct blob_attr
*cur
;
734 blobmsg_for_each_attr(cur
, vlans
, rem
) {
735 struct bridge_vlan_hotplug_port
*port
;
736 uint16_t flags
= BRVLAN_F_UNTAGGED
;
741 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
744 vid
= strtoul(blobmsg_get_string(cur
), &end
, 0);
745 if (!vid
|| vid
> 4095)
748 vlan
= bridge_hotplug_get_vlan(bst
, vid
);
756 for (end
++; *end
; end
++) {
759 flags
&= ~BRVLAN_F_UNTAGGED
;
762 flags
|= BRVLAN_F_PVID
;
768 port
= bridge_hotplug_get_vlan_port(vlan
, ifname
);
773 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, false);
774 list_del(&port
->list
);
780 if (port
->port
.flags
== flags
)
783 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, false);
784 port
->port
.flags
= flags
;
785 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, true);
789 port
= calloc_a(sizeof(*port
), &name_buf
, strlen(ifname
) + 1);
793 port
->port
.flags
= flags
;
794 port
->port
.ifname
= strcpy(name_buf
, ifname
);
795 list_add_tail(&port
->list
, &vlan
->hotplug_ports
);
800 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, true);
805 bridge_hotplug_add(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
807 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
808 struct bridge_member
*bm
;
810 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
811 bridge_hotplug_set_member_vlans(bst
, vlan
, member
->ifname
, bm
, true);
813 bridge_create_member(bst
, member
->ifname
, member
, true);
819 bridge_hotplug_del(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
821 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
822 struct bridge_member
*bm
;
824 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
826 return UBUS_STATUS_NOT_FOUND
;
828 bridge_hotplug_set_member_vlans(bst
, vlan
, member
->ifname
, bm
, false);
829 if (!bm
->dev
.hotplug
)
832 vlist_delete(&bst
->members
, &bm
->node
);
837 bridge_hotplug_prepare(struct device
*dev
, struct device
**bridge_dev
)
839 struct bridge_state
*bst
;
844 bst
= container_of(dev
, struct bridge_state
, dev
);
845 bst
->force_active
= true;
846 device_set_present(&bst
->dev
, true);
851 static const struct device_hotplug_ops bridge_ops
= {
852 .prepare
= bridge_hotplug_prepare
,
853 .add
= bridge_hotplug_add
,
854 .del
= bridge_hotplug_del
858 bridge_free(struct device
*dev
)
860 struct bridge_state
*bst
;
862 bst
= container_of(dev
, struct bridge_state
, dev
);
863 vlist_flush_all(&bst
->members
);
864 vlist_flush_all(&dev
->vlans
);
865 kvlist_free(&dev
->vlan_aliases
);
866 free(bst
->config_data
);
871 bridge_dump_port(struct blob_buf
*b
, struct bridge_vlan_port
*port
)
873 bool tagged
= !(port
->flags
& BRVLAN_F_UNTAGGED
);
874 bool pvid
= (port
->flags
& BRVLAN_F_PVID
);
876 blobmsg_printf(b
, "%s%s%s%s\n", port
->ifname
,
877 tagged
|| pvid
? ":" : "",
883 bridge_dump_vlan(struct blob_buf
*b
, struct bridge_vlan
*vlan
)
885 struct bridge_vlan_hotplug_port
*port
;
889 c
= blobmsg_open_table(b
, NULL
);
891 blobmsg_add_u32(b
, "id", vlan
->vid
);
892 blobmsg_add_u8(b
, "local", vlan
->local
);
894 p
= blobmsg_open_array(b
, "ports");
896 for (i
= 0; i
< vlan
->n_ports
; i
++)
897 bridge_dump_port(b
, &vlan
->ports
[i
]);
899 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
900 bridge_dump_port(b
, &port
->port
);
902 blobmsg_close_array(b
, p
);
904 blobmsg_close_table(b
, c
);
908 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
910 struct bridge_state
*bst
;
911 struct bridge_member
*bm
;
912 struct bridge_vlan
*vlan
;
915 bst
= container_of(dev
, struct bridge_state
, dev
);
917 system_if_dump_info(dev
, b
);
918 list
= blobmsg_open_array(b
, "bridge-members");
920 vlist_for_each_element(&bst
->members
, bm
, node
) {
921 if (bm
->dev
.dev
->hidden
)
924 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
927 blobmsg_close_array(b
, list
);
929 if (avl_is_empty(&dev
->vlans
.avl
))
932 list
= blobmsg_open_array(b
, "bridge-vlans");
934 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
935 bridge_dump_vlan(b
, vlan
);
937 blobmsg_close_array(b
, list
);
941 bridge_config_init(struct device
*dev
)
943 struct bridge_state
*bst
;
944 struct bridge_vlan
*vlan
;
945 struct blob_attr
*cur
;
948 bst
= container_of(dev
, struct bridge_state
, dev
);
950 if (bst
->config
.bridge_empty
) {
951 bst
->force_active
= true;
952 device_set_present(&bst
->dev
, true);
956 vlist_update(&bst
->members
);
958 blobmsg_for_each_attr(cur
, bst
->ports
, rem
) {
959 bridge_add_member(bst
, blobmsg_data(cur
));
963 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
964 for (i
= 0; i
< vlan
->n_ports
; i
++)
965 bridge_add_member(bst
, vlan
->ports
[i
].ifname
);
967 vlist_flush(&bst
->members
);
968 bridge_check_retry(bst
);
972 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
974 struct bridge_config
*cfg
= &bst
->config
;
975 struct blob_attr
*cur
;
979 cfg
->forward_delay
= 2;
981 cfg
->igmp_snoop
= false;
982 cfg
->multicast_querier
= false;
983 cfg
->query_interval
= 12500;
984 cfg
->query_response_interval
= 1000;
985 cfg
->last_member_interval
= 100;
987 cfg
->bridge_empty
= false;
988 cfg
->priority
= 0x7FFF;
989 cfg
->vlan_filtering
= false;
991 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
992 cfg
->stp
= blobmsg_get_bool(cur
);
994 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
995 cfg
->forward_delay
= blobmsg_get_u32(cur
);
997 if ((cur
= tb
[BRIDGE_ATTR_PRIORITY
]))
998 cfg
->priority
= blobmsg_get_u32(cur
);
1000 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
1001 cfg
->multicast_querier
= cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
1003 if ((cur
= tb
[BRIDGE_ATTR_MULTICAST_QUERIER
]))
1004 cfg
->multicast_querier
= blobmsg_get_bool(cur
);
1006 if ((cur
= tb
[BRIDGE_ATTR_HASH_MAX
]))
1007 cfg
->hash_max
= blobmsg_get_u32(cur
);
1009 if ((cur
= tb
[BRIDGE_ATTR_ROBUSTNESS
])) {
1010 cfg
->robustness
= blobmsg_get_u32(cur
);
1011 cfg
->flags
|= BRIDGE_OPT_ROBUSTNESS
;
1014 if ((cur
= tb
[BRIDGE_ATTR_QUERY_INTERVAL
])) {
1015 cfg
->query_interval
= blobmsg_get_u32(cur
);
1016 cfg
->flags
|= BRIDGE_OPT_QUERY_INTERVAL
;
1019 if ((cur
= tb
[BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
])) {
1020 cfg
->query_response_interval
= blobmsg_get_u32(cur
);
1021 cfg
->flags
|= BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
;
1024 if ((cur
= tb
[BRIDGE_ATTR_LAST_MEMBER_INTERVAL
])) {
1025 cfg
->last_member_interval
= blobmsg_get_u32(cur
);
1026 cfg
->flags
|= BRIDGE_OPT_LAST_MEMBER_INTERVAL
;
1029 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
1030 cfg
->ageing_time
= blobmsg_get_u32(cur
);
1031 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
1034 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
1035 cfg
->hello_time
= blobmsg_get_u32(cur
);
1036 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
1039 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
1040 cfg
->max_age
= blobmsg_get_u32(cur
);
1041 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
1044 if ((cur
= tb
[BRIDGE_ATTR_BRIDGE_EMPTY
]))
1045 cfg
->bridge_empty
= blobmsg_get_bool(cur
);
1047 if ((cur
= tb
[BRIDGE_ATTR_VLAN_FILTERING
]))
1048 cfg
->vlan_filtering
= blobmsg_get_bool(cur
);
1051 static enum dev_change_type
1052 bridge_reload(struct device
*dev
, struct blob_attr
*attr
)
1054 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
1055 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
1056 enum dev_change_type ret
= DEV_CONFIG_APPLIED
;
1058 struct bridge_state
*bst
;
1060 BUILD_BUG_ON(sizeof(diff
) < __BRIDGE_ATTR_MAX
/ 8);
1061 BUILD_BUG_ON(sizeof(diff
) < __DEV_ATTR_MAX
/ 8);
1063 bst
= container_of(dev
, struct bridge_state
, dev
);
1064 attr
= blob_memdup(attr
);
1066 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
1067 blob_data(attr
), blob_len(attr
));
1068 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
1069 blob_data(attr
), blob_len(attr
));
1071 if (tb_dev
[DEV_ATTR_MACADDR
])
1072 bst
->primary_port
= NULL
;
1074 bst
->ports
= tb_br
[BRIDGE_ATTR_PORTS
];
1075 device_init_settings(dev
, tb_dev
);
1076 bridge_apply_settings(bst
, tb_br
);
1078 if (bst
->config_data
) {
1079 struct blob_attr
*otb_dev
[__DEV_ATTR_MAX
];
1080 struct blob_attr
*otb_br
[__BRIDGE_ATTR_MAX
];
1082 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, otb_dev
,
1083 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1086 uci_blob_diff(tb_dev
, otb_dev
, &device_attr_list
, &diff
);
1088 ret
= DEV_CONFIG_RESTART
;
1090 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, otb_br
,
1091 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1094 uci_blob_diff(tb_br
, otb_br
, &bridge_attr_list
, &diff
);
1095 if (diff
& ~(1 << BRIDGE_ATTR_PORTS
))
1096 ret
= DEV_CONFIG_RESTART
;
1098 bridge_config_init(dev
);
1101 free(bst
->config_data
);
1102 bst
->config_data
= attr
;
1107 bridge_retry_members(struct uloop_timeout
*timeout
)
1109 struct bridge_state
*bst
= container_of(timeout
, struct bridge_state
, retry
);
1110 struct bridge_member
*bm
;
1113 vlist_for_each_element(&bst
->members
, bm
, node
) {
1117 if (!bm
->dev
.dev
->present
)
1122 bridge_enable_member(bm
);
1126 static int bridge_avl_cmp_u16(const void *k1
, const void *k2
, void *ptr
)
1128 const uint16_t *i1
= k1
, *i2
= k2
;
1134 bridge_vlan_equal(struct bridge_vlan
*v1
, struct bridge_vlan
*v2
)
1138 if (v1
->n_ports
!= v2
->n_ports
)
1141 for (i
= 0; i
< v1
->n_ports
; i
++)
1142 if (v1
->ports
[i
].flags
!= v2
->ports
[i
].flags
||
1143 strcmp(v1
->ports
[i
].ifname
, v2
->ports
[i
].ifname
) != 0)
1150 bridge_vlan_free(struct bridge_vlan
*vlan
)
1152 struct bridge_vlan_hotplug_port
*port
, *tmp
;
1157 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
)
1164 bridge_vlan_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
1165 struct vlist_node
*node_old
)
1167 struct bridge_state
*bst
= container_of(tree
, struct bridge_state
, dev
.vlans
);
1168 struct bridge_vlan
*vlan_new
= NULL
, *vlan_old
= NULL
;
1170 if (!bst
->has_vlans
|| !bst
->active
)
1174 vlan_old
= container_of(node_old
, struct bridge_vlan
, node
);
1176 vlan_new
= container_of(node_new
, struct bridge_vlan
, node
);
1178 if (node_new
&& node_old
&& bridge_vlan_equal(vlan_old
, vlan_new
)) {
1179 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1184 bridge_set_vlan_state(bst
, vlan_old
, false);
1186 if (node_old
&& node_new
)
1187 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1190 vlan_new
->pending
= true;
1192 bst
->dev
.config_pending
= true;
1195 bridge_vlan_free(vlan_old
);
1199 bridge_dev_vlan_update(struct device
*dev
)
1201 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
1202 struct bridge_vlan
*vlan
;
1204 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
1208 vlan
->pending
= false;
1209 bridge_set_vlan_state(bst
, vlan
, true);
1213 static struct device
*
1214 bridge_create(const char *name
, struct device_type
*devtype
,
1215 struct blob_attr
*attr
)
1217 struct bridge_state
*bst
;
1218 struct device
*dev
= NULL
;
1220 bst
= calloc(1, sizeof(*bst
));
1226 if (device_init(dev
, devtype
, name
) < 0) {
1227 device_cleanup(dev
);
1232 dev
->config_pending
= true;
1233 bst
->retry
.cb
= bridge_retry_members
;
1235 bst
->set_state
= dev
->set_state
;
1236 dev
->set_state
= bridge_set_state
;
1238 dev
->hotplug_ops
= &bridge_ops
;
1240 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
1241 bst
->members
.keep_old
= true;
1243 vlist_init(&dev
->vlans
, bridge_avl_cmp_u16
, bridge_vlan_update
);
1245 bridge_reload(dev
, attr
);
1250 static void __init
bridge_device_type_init(void)
1252 device_type_add(&bridge_device_type
);