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
;
125 struct bridge_vlan_hotplug_port
{
126 struct list_head list
;
127 struct bridge_vlan_port port
;
131 bridge_reset_primary(struct bridge_state
*bst
)
133 struct bridge_member
*bm
;
135 if (!bst
->primary_port
&&
136 (bst
->dev
.settings
.flags
& DEV_OPT_MACADDR
))
139 bst
->primary_port
= NULL
;
140 bst
->dev
.settings
.flags
&= ~DEV_OPT_MACADDR
;
141 vlist_for_each_element(&bst
->members
, bm
, node
) {
147 bst
->primary_port
= bm
;
148 if (bm
->dev
.dev
->settings
.flags
& DEV_OPT_MACADDR
)
149 macaddr
= bm
->dev
.dev
->settings
.macaddr
;
151 macaddr
= bm
->dev
.dev
->orig_settings
.macaddr
;
152 memcpy(bst
->dev
.settings
.macaddr
, macaddr
, 6);
153 bst
->dev
.settings
.flags
|= DEV_OPT_MACADDR
;
158 static struct bridge_vlan_port
*
159 bridge_find_vlan_member_port(struct bridge_member
*bm
, struct bridge_vlan
*vlan
)
161 struct bridge_vlan_hotplug_port
*port
;
162 const char *ifname
= bm
->dev
.dev
->ifname
;
165 for (i
= 0; i
< vlan
->n_ports
; i
++) {
166 if (strcmp(vlan
->ports
[i
].ifname
, ifname
) != 0)
169 return &vlan
->ports
[i
];
172 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
173 if (strcmp(port
->port
.ifname
, ifname
) != 0)
183 bridge_member_vlan_is_pvid(struct bridge_member
*bm
, struct bridge_vlan_port
*port
)
185 return (!bm
->pvid
&& (port
->flags
& BRVLAN_F_UNTAGGED
)) ||
186 (port
->flags
& BRVLAN_F_PVID
);
190 __bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
,
191 struct bridge_vlan_port
*port
, bool add
)
196 if (bm
->pvid
== vlan
->vid
)
197 flags
|= BRVLAN_F_PVID
;
199 system_bridge_vlan(port
->ifname
, vlan
->vid
, add
, flags
);
203 bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
, bool add
)
205 struct bridge_vlan_port
*port
;
210 port
= bridge_find_vlan_member_port(bm
, vlan
);
214 if (bridge_member_vlan_is_pvid(bm
, port
))
215 bm
->pvid
= vlan
->vid
;
217 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
221 bridge_set_local_vlan(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
223 if (!vlan
->local
&& add
)
226 system_bridge_vlan(bst
->dev
.ifname
, vlan
->vid
, add
, BRVLAN_F_SELF
);
230 bridge_set_local_vlans(struct bridge_state
*bst
, bool add
)
232 struct bridge_vlan
*vlan
;
234 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
235 bridge_set_local_vlan(bst
, vlan
, add
);
238 static struct bridge_vlan
*
239 bridge_recalc_member_pvid(struct bridge_member
*bm
)
241 struct bridge_state
*bst
= bm
->bst
;
242 struct bridge_vlan_port
*port
;
243 struct bridge_vlan
*vlan
, *ret
= NULL
;
245 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
246 port
= bridge_find_vlan_member_port(bm
, vlan
);
250 if (!bridge_member_vlan_is_pvid(bm
, port
))
254 if (port
->flags
& BRVLAN_F_PVID
)
262 bridge_set_vlan_state(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
264 struct bridge_member
*bm
;
265 struct bridge_vlan
*vlan2
;
267 bridge_set_local_vlan(bst
, vlan
, add
);
269 vlist_for_each_element(&bst
->members
, bm
, node
) {
270 struct bridge_vlan_port
*port
;
273 port
= bridge_find_vlan_member_port(bm
, vlan
);
278 if (bridge_member_vlan_is_pvid(bm
, port
))
279 bm
->pvid
= vlan
->vid
;
280 } else if (bm
->pvid
== vlan
->vid
) {
281 vlan2
= bridge_recalc_member_pvid(bm
);
282 if (vlan2
&& vlan2
->vid
!= vlan
->vid
) {
283 bridge_set_member_vlan(bm
, vlan2
, false);
284 bridge_set_member_vlan(bm
, vlan2
, true);
286 new_pvid
= vlan2
? vlan2
->vid
: 0;
292 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
299 bridge_disable_member(struct bridge_member
*bm
)
301 struct bridge_state
*bst
= bm
->bst
;
302 struct bridge_vlan
*vlan
;
307 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
308 bridge_set_member_vlan(bm
, vlan
, false);
310 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
311 device_release(&bm
->dev
);
313 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
319 bridge_enable_interface(struct bridge_state
*bst
)
326 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
330 if (bst
->config
.vlan_filtering
) {
331 /* delete default VLAN 1 */
332 system_bridge_vlan(bst
->dev
.ifname
, 1, false, BRVLAN_F_SELF
);
334 bridge_set_local_vlans(bst
, true);
342 bridge_disable_interface(struct bridge_state
*bst
)
347 system_bridge_delbr(&bst
->dev
);
352 bridge_enable_member(struct bridge_member
*bm
)
354 struct bridge_state
*bst
= bm
->bst
;
355 struct bridge_vlan
*vlan
;
361 ret
= bridge_enable_interface(bst
);
365 /* Disable IPv6 for bridge members */
366 if (!(bm
->dev
.dev
->settings
.flags
& DEV_OPT_IPV6
)) {
367 bm
->dev
.dev
->settings
.ipv6
= 0;
368 bm
->dev
.dev
->settings
.flags
|= DEV_OPT_IPV6
;
371 ret
= device_claim(&bm
->dev
);
375 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
377 D(DEVICE
, "Bridge device %s could not be added\n", bm
->dev
.dev
->ifname
);
381 if (bst
->config
.vlan_filtering
) {
382 /* delete default VLAN 1 */
383 system_bridge_vlan(bm
->dev
.dev
->ifname
, 1, false, 0);
385 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
386 bridge_set_member_vlan(bm
, vlan
, true);
389 device_set_present(&bst
->dev
, true);
390 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
398 device_release(&bm
->dev
);
404 bridge_remove_member(struct bridge_member
*bm
)
406 struct bridge_state
*bst
= bm
->bst
;
412 bridge_disable_member(bm
);
415 bm
->bst
->n_present
--;
417 if (bm
== bst
->primary_port
)
418 bridge_reset_primary(bst
);
420 if (bst
->config
.bridge_empty
)
423 bst
->force_active
= false;
424 if (bst
->n_present
== 0)
425 device_set_present(&bst
->dev
, false);
429 bridge_free_member(struct bridge_member
*bm
)
431 struct bridge_state
*bst
= bm
->bst
;
432 struct device
*dev
= bm
->dev
.dev
;
433 const char *ifname
= dev
->ifname
;
434 struct bridge_vlan
*vlan
;
436 bridge_remove_member(bm
);
438 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
439 struct bridge_vlan_hotplug_port
*port
, *tmp
;
441 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
) {
442 if (strcmp(port
->port
.ifname
, ifname
) != 0)
445 list_del(&port
->list
);
452 device_remove_user(&bm
->dev
);
455 * When reloading the config and moving a device from one bridge to
456 * another, the other bridge may have tried to claim this device
457 * before it was removed here.
458 * Ensure that claiming the device is retried by toggling its present
462 device_set_present(dev
, false);
463 device_set_present(dev
, true);
472 bridge_check_retry(struct bridge_state
*bst
)
477 uloop_timeout_set(&bst
->retry
, 100);
481 bridge_member_cb(struct device_user
*dev
, enum device_event ev
)
483 struct bridge_member
*bm
= container_of(dev
, struct bridge_member
, dev
);
484 struct bridge_state
*bst
= bm
->bst
;
488 assert(!bm
->present
);
493 if (bst
->n_present
== 1)
494 device_set_present(&bst
->dev
, true);
495 if (bst
->dev
.active
&& !bridge_enable_member(bm
)) {
497 * Adding a bridge member can overwrite the bridge mtu
498 * in the kernel, apply the bridge settings in case the
501 system_if_apply_settings(&bst
->dev
, &bst
->dev
.settings
,
502 DEV_OPT_MTU
| DEV_OPT_MTU6
);
506 case DEV_EVENT_REMOVE
:
508 vlist_delete(&bst
->members
, &bm
->node
);
513 bridge_remove_member(bm
);
522 bridge_set_down(struct bridge_state
*bst
)
524 struct bridge_member
*bm
;
526 bst
->set_state(&bst
->dev
, false);
528 vlist_for_each_element(&bst
->members
, bm
, node
)
529 bridge_disable_member(bm
);
531 bridge_disable_interface(bst
);
537 bridge_set_up(struct bridge_state
*bst
)
539 struct bridge_member
*bm
;
542 if (!bst
->n_present
) {
543 if (!bst
->force_active
)
546 ret
= bridge_enable_interface(bst
);
552 vlist_for_each_element(&bst
->members
, bm
, node
)
553 bridge_enable_member(bm
);
554 bridge_check_retry(bst
);
556 if (!bst
->force_active
&& !bst
->n_present
) {
557 /* initialization of all member interfaces failed */
558 bridge_disable_interface(bst
);
559 device_set_present(&bst
->dev
, false);
563 bridge_reset_primary(bst
);
564 ret
= bst
->set_state(&bst
->dev
, true);
566 bridge_set_down(bst
);
572 bridge_set_state(struct device
*dev
, bool up
)
574 struct bridge_state
*bst
;
576 bst
= container_of(dev
, struct bridge_state
, dev
);
579 return bridge_set_up(bst
);
581 return bridge_set_down(bst
);
584 static struct bridge_member
*
585 bridge_create_member(struct bridge_state
*bst
, const char *name
,
586 struct device
*dev
, bool hotplug
)
588 struct bridge_member
*bm
;
590 bm
= calloc(1, sizeof(*bm
) + strlen(name
) + 1);
595 bm
->dev
.cb
= bridge_member_cb
;
596 bm
->dev
.hotplug
= hotplug
;
597 strcpy(bm
->name
, name
);
599 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
601 * Need to look up the bridge member again as the above
602 * created pointer will be freed in case the bridge member
605 bm
= vlist_find(&bst
->members
, name
, bm
, node
);
607 bm
->node
.version
= -1;
613 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
614 struct vlist_node
*node_old
)
616 struct bridge_member
*bm
;
620 bm
= container_of(node_new
, struct bridge_member
, node
);
629 device_add_user(&bm
->dev
, dev
);
634 bm
= container_of(node_old
, struct bridge_member
, node
);
635 bridge_free_member(bm
);
641 bridge_add_member(struct bridge_state
*bst
, const char *name
)
645 dev
= device_get(name
, true);
649 bridge_create_member(bst
, name
, dev
, false);
653 bridge_hotplug_create_member_vlans(struct bridge_state
*bst
, struct blob_attr
*vlans
, const char *ifname
)
655 struct bridge_vlan
*vlan
;
656 struct blob_attr
*cur
;
662 blobmsg_for_each_attr(cur
, vlans
, rem
) {
663 struct bridge_vlan_hotplug_port
*port
;
664 uint16_t flags
= BRVLAN_F_UNTAGGED
;
669 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
672 vid
= strtoul(blobmsg_get_string(cur
), &end
, 0);
673 if (!vid
|| vid
> 4095)
676 vlan
= vlist_find(&bst
->dev
.vlans
, &vid
, vlan
, node
);
684 for (end
++; *end
; end
++) {
687 flags
&= ~BRVLAN_F_UNTAGGED
;
690 flags
|= BRVLAN_F_PVID
;
696 port
= calloc_a(sizeof(*port
), &name_buf
, strlen(ifname
) + 1);
700 port
->port
.flags
= flags
;
701 port
->port
.ifname
= strcpy(name_buf
, ifname
);
702 list_add_tail(&port
->list
, &vlan
->hotplug_ports
);
707 bridge_hotplug_add(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
709 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
711 bridge_hotplug_create_member_vlans(bst
, vlan
, member
->ifname
);
712 bridge_create_member(bst
, member
->ifname
, member
, true);
718 bridge_hotplug_del(struct device
*dev
, struct device
*member
)
720 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
721 struct bridge_member
*bm
;
723 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
725 return UBUS_STATUS_NOT_FOUND
;
727 vlist_delete(&bst
->members
, &bm
->node
);
732 bridge_hotplug_prepare(struct device
*dev
)
734 struct bridge_state
*bst
;
736 bst
= container_of(dev
, struct bridge_state
, dev
);
737 bst
->force_active
= true;
738 device_set_present(&bst
->dev
, true);
743 static const struct device_hotplug_ops bridge_ops
= {
744 .prepare
= bridge_hotplug_prepare
,
745 .add
= bridge_hotplug_add
,
746 .del
= bridge_hotplug_del
750 bridge_free(struct device
*dev
)
752 struct bridge_state
*bst
;
754 bst
= container_of(dev
, struct bridge_state
, dev
);
755 vlist_flush_all(&bst
->members
);
756 vlist_flush_all(&dev
->vlans
);
757 free(bst
->config_data
);
762 bridge_dump_port(struct blob_buf
*b
, struct bridge_vlan_port
*port
)
764 bool tagged
= !(port
->flags
& BRVLAN_F_UNTAGGED
);
765 bool pvid
= (port
->flags
& BRVLAN_F_PVID
);
767 blobmsg_printf(b
, "%s%s%s%s\n", port
->ifname
,
768 tagged
|| pvid
? ":" : "",
774 bridge_dump_vlan(struct blob_buf
*b
, struct bridge_vlan
*vlan
)
776 struct bridge_vlan_hotplug_port
*port
;
780 c
= blobmsg_open_table(b
, NULL
);
782 blobmsg_add_u32(b
, "id", vlan
->vid
);
783 blobmsg_add_u8(b
, "local", vlan
->local
);
785 p
= blobmsg_open_array(b
, "ports");
787 for (i
= 0; i
< vlan
->n_ports
; i
++)
788 bridge_dump_port(b
, &vlan
->ports
[i
]);
790 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
791 bridge_dump_port(b
, &port
->port
);
793 blobmsg_close_array(b
, p
);
795 blobmsg_close_table(b
, c
);
799 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
801 struct bridge_state
*bst
;
802 struct bridge_member
*bm
;
803 struct bridge_vlan
*vlan
;
806 bst
= container_of(dev
, struct bridge_state
, dev
);
808 system_if_dump_info(dev
, b
);
809 list
= blobmsg_open_array(b
, "bridge-members");
811 vlist_for_each_element(&bst
->members
, bm
, node
) {
812 if (bm
->dev
.dev
->hidden
)
815 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
818 blobmsg_close_array(b
, list
);
820 if (avl_is_empty(&dev
->vlans
.avl
))
823 list
= blobmsg_open_array(b
, "bridge-vlans");
825 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
826 bridge_dump_vlan(b
, vlan
);
828 blobmsg_close_array(b
, list
);
832 bridge_config_init(struct device
*dev
)
834 struct bridge_state
*bst
;
835 struct bridge_vlan
*vlan
;
836 struct blob_attr
*cur
;
839 bst
= container_of(dev
, struct bridge_state
, dev
);
841 if (bst
->config
.bridge_empty
) {
842 bst
->force_active
= true;
843 device_set_present(&bst
->dev
, true);
847 vlist_update(&bst
->members
);
849 blobmsg_for_each_attr(cur
, bst
->ifnames
, rem
) {
850 bridge_add_member(bst
, blobmsg_data(cur
));
854 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
855 for (i
= 0; i
< vlan
->n_ports
; i
++)
856 bridge_add_member(bst
, vlan
->ports
[i
].ifname
);
858 vlist_flush(&bst
->members
);
859 bridge_check_retry(bst
);
863 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
865 struct bridge_config
*cfg
= &bst
->config
;
866 struct blob_attr
*cur
;
870 cfg
->forward_delay
= 2;
872 cfg
->query_interval
= 12500;
873 cfg
->query_response_interval
= 1000;
874 cfg
->last_member_interval
= 100;
876 cfg
->bridge_empty
= false;
877 cfg
->priority
= 0x7FFF;
878 cfg
->vlan_filtering
= false;
880 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
881 cfg
->stp
= blobmsg_get_bool(cur
);
883 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
884 cfg
->forward_delay
= blobmsg_get_u32(cur
);
886 if ((cur
= tb
[BRIDGE_ATTR_PRIORITY
]))
887 cfg
->priority
= blobmsg_get_u32(cur
);
889 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
890 cfg
->multicast_querier
= cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
892 if ((cur
= tb
[BRIDGE_ATTR_MULTICAST_QUERIER
]))
893 cfg
->multicast_querier
= blobmsg_get_bool(cur
);
895 if ((cur
= tb
[BRIDGE_ATTR_HASH_MAX
]))
896 cfg
->hash_max
= blobmsg_get_u32(cur
);
898 if ((cur
= tb
[BRIDGE_ATTR_ROBUSTNESS
])) {
899 cfg
->robustness
= blobmsg_get_u32(cur
);
900 cfg
->flags
|= BRIDGE_OPT_ROBUSTNESS
;
903 if ((cur
= tb
[BRIDGE_ATTR_QUERY_INTERVAL
])) {
904 cfg
->query_interval
= blobmsg_get_u32(cur
);
905 cfg
->flags
|= BRIDGE_OPT_QUERY_INTERVAL
;
908 if ((cur
= tb
[BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
])) {
909 cfg
->query_response_interval
= blobmsg_get_u32(cur
);
910 cfg
->flags
|= BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
;
913 if ((cur
= tb
[BRIDGE_ATTR_LAST_MEMBER_INTERVAL
])) {
914 cfg
->last_member_interval
= blobmsg_get_u32(cur
);
915 cfg
->flags
|= BRIDGE_OPT_LAST_MEMBER_INTERVAL
;
918 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
919 cfg
->ageing_time
= blobmsg_get_u32(cur
);
920 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
923 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
924 cfg
->hello_time
= blobmsg_get_u32(cur
);
925 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
928 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
929 cfg
->max_age
= blobmsg_get_u32(cur
);
930 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
933 if ((cur
= tb
[BRIDGE_ATTR_BRIDGE_EMPTY
]))
934 cfg
->bridge_empty
= blobmsg_get_bool(cur
);
936 if ((cur
= tb
[BRIDGE_ATTR_VLAN_FILTERING
]))
937 cfg
->vlan_filtering
= blobmsg_get_bool(cur
);
940 static enum dev_change_type
941 bridge_reload(struct device
*dev
, struct blob_attr
*attr
)
943 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
944 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
945 enum dev_change_type ret
= DEV_CONFIG_APPLIED
;
947 struct bridge_state
*bst
;
949 BUILD_BUG_ON(sizeof(diff
) < __BRIDGE_ATTR_MAX
/ 8);
950 BUILD_BUG_ON(sizeof(diff
) < __DEV_ATTR_MAX
/ 8);
952 bst
= container_of(dev
, struct bridge_state
, dev
);
953 attr
= blob_memdup(attr
);
955 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
956 blob_data(attr
), blob_len(attr
));
957 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
958 blob_data(attr
), blob_len(attr
));
960 if (tb_dev
[DEV_ATTR_MACADDR
])
961 bst
->primary_port
= NULL
;
963 bst
->ifnames
= tb_br
[BRIDGE_ATTR_IFNAME
];
964 device_init_settings(dev
, tb_dev
);
965 bridge_apply_settings(bst
, tb_br
);
967 if (bst
->config_data
) {
968 struct blob_attr
*otb_dev
[__DEV_ATTR_MAX
];
969 struct blob_attr
*otb_br
[__BRIDGE_ATTR_MAX
];
971 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, otb_dev
,
972 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
975 uci_blob_diff(tb_dev
, otb_dev
, &device_attr_list
, &diff
);
977 ret
= DEV_CONFIG_RESTART
;
979 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, otb_br
,
980 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
983 uci_blob_diff(tb_br
, otb_br
, &bridge_attr_list
, &diff
);
984 if (diff
& ~(1 << BRIDGE_ATTR_IFNAME
))
985 ret
= DEV_CONFIG_RESTART
;
987 bridge_config_init(dev
);
990 free(bst
->config_data
);
991 bst
->config_data
= attr
;
996 bridge_retry_members(struct uloop_timeout
*timeout
)
998 struct bridge_state
*bst
= container_of(timeout
, struct bridge_state
, retry
);
999 struct bridge_member
*bm
;
1002 vlist_for_each_element(&bst
->members
, bm
, node
) {
1006 if (!bm
->dev
.dev
->present
)
1011 bridge_enable_member(bm
);
1015 static int bridge_avl_cmp_u16(const void *k1
, const void *k2
, void *ptr
)
1017 const uint16_t *i1
= k1
, *i2
= k2
;
1023 bridge_vlan_equal(struct bridge_vlan
*v1
, struct bridge_vlan
*v2
)
1027 if (v1
->n_ports
!= v2
->n_ports
)
1030 for (i
= 0; i
< v1
->n_ports
; i
++)
1031 if (v1
->ports
[i
].flags
!= v2
->ports
[i
].flags
||
1032 strcmp(v1
->ports
[i
].ifname
, v2
->ports
[i
].ifname
) != 0)
1039 bridge_vlan_free(struct bridge_vlan
*vlan
)
1041 struct bridge_vlan_hotplug_port
*port
, *tmp
;
1046 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
)
1053 bridge_vlan_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
1054 struct vlist_node
*node_old
)
1056 struct bridge_state
*bst
= container_of(tree
, struct bridge_state
, dev
.vlans
);
1057 struct bridge_vlan
*vlan_new
= NULL
, *vlan_old
= NULL
;
1059 if (!bst
->config
.vlan_filtering
|| !bst
->active
)
1063 vlan_old
= container_of(node_old
, struct bridge_vlan
, node
);
1065 vlan_new
= container_of(node_new
, struct bridge_vlan
, node
);
1067 if (node_new
&& node_old
&& bridge_vlan_equal(vlan_old
, vlan_new
)) {
1068 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1073 bridge_set_vlan_state(bst
, vlan_old
, false);
1075 if (node_old
&& node_new
)
1076 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1079 bridge_set_vlan_state(bst
, vlan_new
, true);
1081 bst
->dev
.config_pending
= true;
1084 bridge_vlan_free(vlan_old
);
1087 static struct device
*
1088 bridge_create(const char *name
, struct device_type
*devtype
,
1089 struct blob_attr
*attr
)
1091 struct bridge_state
*bst
;
1092 struct device
*dev
= NULL
;
1094 bst
= calloc(1, sizeof(*bst
));
1100 if (device_init(dev
, devtype
, name
) < 0) {
1101 device_cleanup(dev
);
1106 dev
->config_pending
= true;
1107 bst
->retry
.cb
= bridge_retry_members
;
1109 bst
->set_state
= dev
->set_state
;
1110 dev
->set_state
= bridge_set_state
;
1112 dev
->hotplug_ops
= &bridge_ops
;
1114 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
1115 bst
->members
.keep_old
= true;
1117 vlist_init(&dev
->vlans
, bridge_avl_cmp_u16
, bridge_vlan_update
);
1119 bridge_reload(dev
, attr
);
1124 static void __init
bridge_device_type_init(void)
1126 device_type_add(&bridge_device_type
);