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
,
45 static const struct blobmsg_policy bridge_attrs
[__BRIDGE_ATTR_MAX
] = {
46 [BRIDGE_ATTR_IFNAME
] = { "ifname", BLOBMSG_TYPE_ARRAY
},
47 [BRIDGE_ATTR_STP
] = { "stp", BLOBMSG_TYPE_BOOL
},
48 [BRIDGE_ATTR_FORWARD_DELAY
] = { "forward_delay", BLOBMSG_TYPE_INT32
},
49 [BRIDGE_ATTR_PRIORITY
] = { "priority", BLOBMSG_TYPE_INT32
},
50 [BRIDGE_ATTR_AGEING_TIME
] = { "ageing_time", BLOBMSG_TYPE_INT32
},
51 [BRIDGE_ATTR_HELLO_TIME
] = { "hello_time", BLOBMSG_TYPE_INT32
},
52 [BRIDGE_ATTR_MAX_AGE
] = { "max_age", BLOBMSG_TYPE_INT32
},
53 [BRIDGE_ATTR_IGMP_SNOOP
] = { "igmp_snooping", BLOBMSG_TYPE_BOOL
},
54 [BRIDGE_ATTR_BRIDGE_EMPTY
] = { "bridge_empty", BLOBMSG_TYPE_BOOL
},
55 [BRIDGE_ATTR_MULTICAST_QUERIER
] = { "multicast_querier", BLOBMSG_TYPE_BOOL
},
56 [BRIDGE_ATTR_HASH_MAX
] = { "hash_max", BLOBMSG_TYPE_INT32
},
57 [BRIDGE_ATTR_ROBUSTNESS
] = { "robustness", BLOBMSG_TYPE_INT32
},
58 [BRIDGE_ATTR_QUERY_INTERVAL
] = { "query_interval", BLOBMSG_TYPE_INT32
},
59 [BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
] = { "query_response_interval", BLOBMSG_TYPE_INT32
},
60 [BRIDGE_ATTR_LAST_MEMBER_INTERVAL
] = { "last_member_interval", BLOBMSG_TYPE_INT32
},
61 [BRIDGE_ATTR_VLAN_FILTERING
] = { "vlan_filtering", BLOBMSG_TYPE_BOOL
},
64 static const struct uci_blob_param_info bridge_attr_info
[__BRIDGE_ATTR_MAX
] = {
65 [BRIDGE_ATTR_IFNAME
] = { .type
= BLOBMSG_TYPE_STRING
},
68 static const struct uci_blob_param_list bridge_attr_list
= {
69 .n_params
= __BRIDGE_ATTR_MAX
,
70 .params
= bridge_attrs
,
71 .info
= bridge_attr_info
,
74 .next
= { &device_attr_list
},
77 static struct device
*bridge_create(const char *name
, struct device_type
*devtype
,
78 struct blob_attr
*attr
);
79 static void bridge_config_init(struct device
*dev
);
80 static void bridge_free(struct device
*dev
);
81 static void bridge_dump_info(struct device
*dev
, struct blob_buf
*b
);
82 static enum dev_change_type
83 bridge_reload(struct device
*dev
, struct blob_attr
*attr
);
85 static struct device_type bridge_device_type
= {
87 .config_params
= &bridge_attr_list
,
89 .bridge_capability
= true,
92 .create
= bridge_create
,
93 .config_init
= bridge_config_init
,
94 .reload
= bridge_reload
,
96 .dump_info
= bridge_dump_info
,
101 device_state_cb set_state
;
103 struct blob_attr
*config_data
;
104 struct bridge_config config
;
105 struct blob_attr
*ifnames
;
109 struct uloop_timeout retry
;
110 struct bridge_member
*primary_port
;
111 struct vlist_tree members
;
116 struct bridge_member
{
117 struct vlist_node node
;
118 struct bridge_state
*bst
;
119 struct device_user dev
;
126 bridge_reset_primary(struct bridge_state
*bst
)
128 struct bridge_member
*bm
;
130 if (!bst
->primary_port
&&
131 (bst
->dev
.settings
.flags
& DEV_OPT_MACADDR
))
134 bst
->primary_port
= NULL
;
135 bst
->dev
.settings
.flags
&= ~DEV_OPT_MACADDR
;
136 vlist_for_each_element(&bst
->members
, bm
, node
) {
142 bst
->primary_port
= bm
;
143 if (bm
->dev
.dev
->settings
.flags
& DEV_OPT_MACADDR
)
144 macaddr
= bm
->dev
.dev
->settings
.macaddr
;
146 macaddr
= bm
->dev
.dev
->orig_settings
.macaddr
;
147 memcpy(bst
->dev
.settings
.macaddr
, macaddr
, 6);
148 bst
->dev
.settings
.flags
|= DEV_OPT_MACADDR
;
153 static struct bridge_vlan_port
*
154 bridge_find_vlan_member_port(struct bridge_member
*bm
, struct bridge_vlan
*vlan
)
156 const char *ifname
= bm
->dev
.dev
->ifname
;
159 for (i
= 0; i
< vlan
->n_ports
; i
++) {
160 if (strcmp(vlan
->ports
[i
].ifname
, ifname
) != 0)
163 return &vlan
->ports
[i
];
170 bridge_member_vlan_is_pvid(struct bridge_member
*bm
, struct bridge_vlan_port
*port
)
172 return (!bm
->pvid
&& (port
->flags
& BRVLAN_F_UNTAGGED
)) ||
173 (port
->flags
& BRVLAN_F_PVID
);
177 __bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
,
178 struct bridge_vlan_port
*port
, bool add
)
183 if (bm
->pvid
== vlan
->vid
)
184 flags
|= BRVLAN_F_PVID
;
186 system_bridge_vlan(port
->ifname
, vlan
->vid
, add
, flags
);
190 bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
, bool add
)
192 struct bridge_vlan_port
*port
;
197 port
= bridge_find_vlan_member_port(bm
, vlan
);
201 if (bridge_member_vlan_is_pvid(bm
, port
))
202 bm
->pvid
= vlan
->vid
;
204 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
208 brigde_set_local_vlan(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
210 if (!vlan
->local
&& add
)
213 system_bridge_vlan(bst
->dev
.ifname
, vlan
->vid
, add
, BRVLAN_F_SELF
);
217 bridge_set_local_vlans(struct bridge_state
*bst
, bool add
)
219 struct bridge_vlan
*vlan
;
221 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
222 brigde_set_local_vlan(bst
, vlan
, add
);
225 static struct bridge_vlan
*
226 bridge_recalc_member_pvid(struct bridge_member
*bm
)
228 struct bridge_state
*bst
= bm
->bst
;
229 struct bridge_vlan_port
*port
;
230 struct bridge_vlan
*vlan
, *ret
= NULL
;
232 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
233 port
= bridge_find_vlan_member_port(bm
, vlan
);
237 if (!bridge_member_vlan_is_pvid(bm
, port
))
241 if (port
->flags
& BRVLAN_F_PVID
)
249 bridge_set_vlan_state(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
251 struct bridge_member
*bm
;
252 struct bridge_vlan
*vlan2
;
254 brigde_set_local_vlan(bst
, vlan
, add
);
256 vlist_for_each_element(&bst
->members
, bm
, node
) {
257 struct bridge_vlan_port
*port
;
260 port
= bridge_find_vlan_member_port(bm
, vlan
);
265 if (bridge_member_vlan_is_pvid(bm
, port
))
266 bm
->pvid
= vlan
->vid
;
267 } else if (bm
->pvid
== vlan
->vid
) {
268 vlan2
= bridge_recalc_member_pvid(bm
);
269 if (vlan2
&& vlan2
->vid
!= vlan
->vid
) {
270 bridge_set_member_vlan(bm
, vlan2
, false);
271 bridge_set_member_vlan(bm
, vlan2
, true);
273 new_pvid
= vlan2
? vlan2
->vid
: 0;
279 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
286 bridge_disable_member(struct bridge_member
*bm
)
288 struct bridge_state
*bst
= bm
->bst
;
289 struct bridge_vlan
*vlan
;
294 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
295 bridge_set_member_vlan(bm
, vlan
, false);
297 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
298 device_release(&bm
->dev
);
300 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
306 bridge_enable_interface(struct bridge_state
*bst
)
313 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
317 if (bst
->config
.vlan_filtering
) {
318 /* delete default VLAN 1 */
319 system_bridge_vlan(bst
->dev
.ifname
, 1, false, BRVLAN_F_SELF
);
321 bridge_set_local_vlans(bst
, true);
329 bridge_disable_interface(struct bridge_state
*bst
)
334 system_bridge_delbr(&bst
->dev
);
339 bridge_enable_member(struct bridge_member
*bm
)
341 struct bridge_state
*bst
= bm
->bst
;
342 struct bridge_vlan
*vlan
;
348 ret
= bridge_enable_interface(bst
);
352 /* Disable IPv6 for bridge members */
353 if (!(bm
->dev
.dev
->settings
.flags
& DEV_OPT_IPV6
)) {
354 bm
->dev
.dev
->settings
.ipv6
= 0;
355 bm
->dev
.dev
->settings
.flags
|= DEV_OPT_IPV6
;
358 ret
= device_claim(&bm
->dev
);
362 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
364 D(DEVICE
, "Bridge device %s could not be added\n", bm
->dev
.dev
->ifname
);
368 if (bst
->config
.vlan_filtering
) {
369 /* delete default VLAN 1 */
370 system_bridge_vlan(bm
->dev
.dev
->ifname
, 1, false, 0);
372 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
373 bridge_set_member_vlan(bm
, vlan
, true);
376 device_set_present(&bst
->dev
, true);
377 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
385 device_release(&bm
->dev
);
391 bridge_remove_member(struct bridge_member
*bm
)
393 struct bridge_state
*bst
= bm
->bst
;
399 bridge_disable_member(bm
);
402 bm
->bst
->n_present
--;
404 if (bm
== bst
->primary_port
)
405 bridge_reset_primary(bst
);
407 if (bst
->config
.bridge_empty
)
410 bst
->force_active
= false;
411 if (bst
->n_present
== 0)
412 device_set_present(&bst
->dev
, false);
416 bridge_free_member(struct bridge_member
*bm
)
418 struct device
*dev
= bm
->dev
.dev
;
420 bridge_remove_member(bm
);
421 device_remove_user(&bm
->dev
);
424 * When reloading the config and moving a device from one bridge to
425 * another, the other bridge may have tried to claim this device
426 * before it was removed here.
427 * Ensure that claiming the device is retried by toggling its present
431 device_set_present(dev
, false);
432 device_set_present(dev
, true);
439 bridge_check_retry(struct bridge_state
*bst
)
444 uloop_timeout_set(&bst
->retry
, 100);
448 bridge_member_cb(struct device_user
*dev
, enum device_event ev
)
450 struct bridge_member
*bm
= container_of(dev
, struct bridge_member
, dev
);
451 struct bridge_state
*bst
= bm
->bst
;
455 assert(!bm
->present
);
460 if (bst
->n_present
== 1)
461 device_set_present(&bst
->dev
, true);
462 if (bst
->dev
.active
&& !bridge_enable_member(bm
)) {
464 * Adding a bridge member can overwrite the bridge mtu
465 * in the kernel, apply the bridge settings in case the
468 system_if_apply_settings(&bst
->dev
, &bst
->dev
.settings
,
469 DEV_OPT_MTU
| DEV_OPT_MTU6
);
473 case DEV_EVENT_REMOVE
:
475 vlist_delete(&bst
->members
, &bm
->node
);
480 bridge_remove_member(bm
);
489 bridge_set_down(struct bridge_state
*bst
)
491 struct bridge_member
*bm
;
493 bst
->set_state(&bst
->dev
, false);
495 vlist_for_each_element(&bst
->members
, bm
, node
)
496 bridge_disable_member(bm
);
498 bridge_disable_interface(bst
);
504 bridge_set_up(struct bridge_state
*bst
)
506 struct bridge_member
*bm
;
509 if (!bst
->n_present
) {
510 if (!bst
->force_active
)
513 ret
= bridge_enable_interface(bst
);
519 vlist_for_each_element(&bst
->members
, bm
, node
)
520 bridge_enable_member(bm
);
521 bridge_check_retry(bst
);
523 if (!bst
->force_active
&& !bst
->n_present
) {
524 /* initialization of all member interfaces failed */
525 bridge_disable_interface(bst
);
526 device_set_present(&bst
->dev
, false);
530 bridge_reset_primary(bst
);
531 ret
= bst
->set_state(&bst
->dev
, true);
533 bridge_set_down(bst
);
539 bridge_set_state(struct device
*dev
, bool up
)
541 struct bridge_state
*bst
;
543 bst
= container_of(dev
, struct bridge_state
, dev
);
546 return bridge_set_up(bst
);
548 return bridge_set_down(bst
);
551 static struct bridge_member
*
552 bridge_create_member(struct bridge_state
*bst
, const char *name
,
553 struct device
*dev
, bool hotplug
)
555 struct bridge_member
*bm
;
557 bm
= calloc(1, sizeof(*bm
) + strlen(name
) + 1);
562 bm
->dev
.cb
= bridge_member_cb
;
563 bm
->dev
.hotplug
= hotplug
;
564 strcpy(bm
->name
, name
);
566 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
568 * Need to look up the bridge member again as the above
569 * created pointer will be freed in case the bridge member
572 bm
= vlist_find(&bst
->members
, name
, bm
, node
);
574 bm
->node
.version
= -1;
580 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
581 struct vlist_node
*node_old
)
583 struct bridge_member
*bm
;
587 bm
= container_of(node_new
, struct bridge_member
, node
);
596 device_add_user(&bm
->dev
, dev
);
601 bm
= container_of(node_old
, struct bridge_member
, node
);
602 bridge_free_member(bm
);
608 bridge_add_member(struct bridge_state
*bst
, const char *name
)
612 dev
= device_get(name
, true);
616 bridge_create_member(bst
, name
, dev
, false);
620 bridge_hotplug_add(struct device
*dev
, struct device
*member
)
622 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
624 bridge_create_member(bst
, member
->ifname
, member
, true);
630 bridge_hotplug_del(struct device
*dev
, struct device
*member
)
632 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
633 struct bridge_member
*bm
;
635 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
637 return UBUS_STATUS_NOT_FOUND
;
639 vlist_delete(&bst
->members
, &bm
->node
);
644 bridge_hotplug_prepare(struct device
*dev
)
646 struct bridge_state
*bst
;
648 bst
= container_of(dev
, struct bridge_state
, dev
);
649 bst
->force_active
= true;
650 device_set_present(&bst
->dev
, true);
655 static const struct device_hotplug_ops bridge_ops
= {
656 .prepare
= bridge_hotplug_prepare
,
657 .add
= bridge_hotplug_add
,
658 .del
= bridge_hotplug_del
662 bridge_free(struct device
*dev
)
664 struct bridge_state
*bst
;
666 bst
= container_of(dev
, struct bridge_state
, dev
);
667 vlist_flush_all(&bst
->members
);
668 vlist_flush_all(&dev
->vlans
);
669 free(bst
->config_data
);
674 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
676 struct bridge_state
*bst
;
677 struct bridge_member
*bm
;
680 bst
= container_of(dev
, struct bridge_state
, dev
);
682 system_if_dump_info(dev
, b
);
683 list
= blobmsg_open_array(b
, "bridge-members");
685 vlist_for_each_element(&bst
->members
, bm
, node
) {
686 if (bm
->dev
.dev
->hidden
)
689 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
692 blobmsg_close_array(b
, list
);
696 bridge_config_init(struct device
*dev
)
698 struct bridge_state
*bst
;
699 struct bridge_vlan
*vlan
;
700 struct blob_attr
*cur
;
703 bst
= container_of(dev
, struct bridge_state
, dev
);
705 if (bst
->config
.bridge_empty
) {
706 bst
->force_active
= true;
707 device_set_present(&bst
->dev
, true);
711 vlist_update(&bst
->members
);
713 blobmsg_for_each_attr(cur
, bst
->ifnames
, rem
) {
714 bridge_add_member(bst
, blobmsg_data(cur
));
718 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
719 for (i
= 0; i
< vlan
->n_ports
; i
++)
720 bridge_add_member(bst
, vlan
->ports
[i
].ifname
);
722 vlist_flush(&bst
->members
);
723 bridge_check_retry(bst
);
727 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
729 struct bridge_config
*cfg
= &bst
->config
;
730 struct blob_attr
*cur
;
734 cfg
->forward_delay
= 2;
736 cfg
->query_interval
= 12500;
737 cfg
->query_response_interval
= 1000;
738 cfg
->last_member_interval
= 100;
740 cfg
->bridge_empty
= false;
741 cfg
->priority
= 0x7FFF;
742 cfg
->vlan_filtering
= false;
744 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
745 cfg
->stp
= blobmsg_get_bool(cur
);
747 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
748 cfg
->forward_delay
= blobmsg_get_u32(cur
);
750 if ((cur
= tb
[BRIDGE_ATTR_PRIORITY
]))
751 cfg
->priority
= blobmsg_get_u32(cur
);
753 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
754 cfg
->multicast_querier
= cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
756 if ((cur
= tb
[BRIDGE_ATTR_MULTICAST_QUERIER
]))
757 cfg
->multicast_querier
= blobmsg_get_bool(cur
);
759 if ((cur
= tb
[BRIDGE_ATTR_HASH_MAX
]))
760 cfg
->hash_max
= blobmsg_get_u32(cur
);
762 if ((cur
= tb
[BRIDGE_ATTR_ROBUSTNESS
])) {
763 cfg
->robustness
= blobmsg_get_u32(cur
);
764 cfg
->flags
|= BRIDGE_OPT_ROBUSTNESS
;
767 if ((cur
= tb
[BRIDGE_ATTR_QUERY_INTERVAL
])) {
768 cfg
->query_interval
= blobmsg_get_u32(cur
);
769 cfg
->flags
|= BRIDGE_OPT_QUERY_INTERVAL
;
772 if ((cur
= tb
[BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
])) {
773 cfg
->query_response_interval
= blobmsg_get_u32(cur
);
774 cfg
->flags
|= BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
;
777 if ((cur
= tb
[BRIDGE_ATTR_LAST_MEMBER_INTERVAL
])) {
778 cfg
->last_member_interval
= blobmsg_get_u32(cur
);
779 cfg
->flags
|= BRIDGE_OPT_LAST_MEMBER_INTERVAL
;
782 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
783 cfg
->ageing_time
= blobmsg_get_u32(cur
);
784 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
787 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
788 cfg
->hello_time
= blobmsg_get_u32(cur
);
789 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
792 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
793 cfg
->max_age
= blobmsg_get_u32(cur
);
794 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
797 if ((cur
= tb
[BRIDGE_ATTR_BRIDGE_EMPTY
]))
798 cfg
->bridge_empty
= blobmsg_get_bool(cur
);
800 if ((cur
= tb
[BRIDGE_ATTR_VLAN_FILTERING
]))
801 cfg
->vlan_filtering
= blobmsg_get_bool(cur
);
804 static enum dev_change_type
805 bridge_reload(struct device
*dev
, struct blob_attr
*attr
)
807 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
808 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
809 enum dev_change_type ret
= DEV_CONFIG_APPLIED
;
811 struct bridge_state
*bst
;
813 BUILD_BUG_ON(sizeof(diff
) < __BRIDGE_ATTR_MAX
/ 8);
814 BUILD_BUG_ON(sizeof(diff
) < __DEV_ATTR_MAX
/ 8);
816 bst
= container_of(dev
, struct bridge_state
, dev
);
817 attr
= blob_memdup(attr
);
819 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
820 blob_data(attr
), blob_len(attr
));
821 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
822 blob_data(attr
), blob_len(attr
));
824 if (tb_dev
[DEV_ATTR_MACADDR
])
825 bst
->primary_port
= NULL
;
827 bst
->ifnames
= tb_br
[BRIDGE_ATTR_IFNAME
];
828 device_init_settings(dev
, tb_dev
);
829 bridge_apply_settings(bst
, tb_br
);
831 if (bst
->config_data
) {
832 struct blob_attr
*otb_dev
[__DEV_ATTR_MAX
];
833 struct blob_attr
*otb_br
[__BRIDGE_ATTR_MAX
];
835 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, otb_dev
,
836 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
839 uci_blob_diff(tb_dev
, otb_dev
, &device_attr_list
, &diff
);
841 ret
= DEV_CONFIG_RESTART
;
843 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, otb_br
,
844 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
847 uci_blob_diff(tb_br
, otb_br
, &bridge_attr_list
, &diff
);
848 if (diff
& ~(1 << BRIDGE_ATTR_IFNAME
))
849 ret
= DEV_CONFIG_RESTART
;
851 bridge_config_init(dev
);
854 free(bst
->config_data
);
855 bst
->config_data
= attr
;
860 bridge_retry_members(struct uloop_timeout
*timeout
)
862 struct bridge_state
*bst
= container_of(timeout
, struct bridge_state
, retry
);
863 struct bridge_member
*bm
;
866 vlist_for_each_element(&bst
->members
, bm
, node
) {
870 if (!bm
->dev
.dev
->present
)
875 bridge_enable_member(bm
);
879 static int bridge_avl_cmp_u16(const void *k1
, const void *k2
, void *ptr
)
881 const uint16_t *i1
= k1
, *i2
= k2
;
887 bridge_vlan_equal(struct bridge_vlan
*v1
, struct bridge_vlan
*v2
)
891 if (v1
->n_ports
!= v2
->n_ports
)
894 for (i
= 0; i
< v1
->n_ports
; i
++)
895 if (v1
->ports
[i
].flags
!= v2
->ports
[i
].flags
||
896 strcmp(v1
->ports
[i
].ifname
, v2
->ports
[i
].ifname
) != 0)
903 bridge_vlan_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
904 struct vlist_node
*node_old
)
906 struct bridge_state
*bst
= container_of(tree
, struct bridge_state
, dev
.vlans
);
907 struct bridge_vlan
*vlan_new
= NULL
, *vlan_old
= NULL
;
909 if (!bst
->config
.vlan_filtering
|| !bst
->active
)
913 vlan_old
= container_of(node_old
, struct bridge_vlan
, node
);
915 vlan_new
= container_of(node_new
, struct bridge_vlan
, node
);
917 if (node_new
&& node_old
&& bridge_vlan_equal(vlan_old
, vlan_new
))
921 bridge_set_vlan_state(bst
, vlan_old
, false);
924 bridge_set_vlan_state(bst
, vlan_new
, true);
926 bst
->dev
.config_pending
= true;
932 static struct device
*
933 bridge_create(const char *name
, struct device_type
*devtype
,
934 struct blob_attr
*attr
)
936 struct bridge_state
*bst
;
937 struct device
*dev
= NULL
;
939 bst
= calloc(1, sizeof(*bst
));
945 if (device_init(dev
, devtype
, name
) < 0) {
951 dev
->config_pending
= true;
952 bst
->retry
.cb
= bridge_retry_members
;
954 bst
->set_state
= dev
->set_state
;
955 dev
->set_state
= bridge_set_state
;
957 dev
->hotplug_ops
= &bridge_ops
;
959 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
960 bst
->members
.keep_old
= true;
962 vlist_init(&dev
->vlans
, bridge_avl_cmp_u16
, bridge_vlan_update
);
964 bridge_reload(dev
, attr
);
969 static void __init
bridge_device_type_init(void)
971 device_type_add(&bridge_device_type
);