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_free(struct device
*dev
);
83 static void bridge_dump_info(struct device
*dev
, struct blob_buf
*b
);
84 static enum dev_change_type
85 bridge_reload(struct device
*dev
, struct blob_attr
*attr
);
87 static struct device_type bridge_device_type
= {
89 .config_params
= &bridge_attr_list
,
91 .bridge_capability
= true,
94 .create
= bridge_create
,
95 .config_init
= bridge_config_init
,
96 .reload
= bridge_reload
,
98 .dump_info
= bridge_dump_info
,
101 struct bridge_state
{
103 device_state_cb set_state
;
105 struct blob_attr
*config_data
;
106 struct bridge_config config
;
107 struct blob_attr
*ports
;
112 struct uloop_timeout retry
;
113 struct bridge_member
*primary_port
;
114 struct vlist_tree members
;
119 struct bridge_member
{
120 struct vlist_node node
;
121 struct bridge_state
*bst
;
122 struct device_user dev
;
129 struct bridge_vlan_hotplug_port
{
130 struct list_head list
;
131 struct bridge_vlan_port port
;
135 bridge_reset_primary(struct bridge_state
*bst
)
137 struct bridge_member
*bm
;
139 if (!bst
->primary_port
&&
140 (bst
->dev
.settings
.flags
& DEV_OPT_MACADDR
))
143 bst
->primary_port
= NULL
;
144 bst
->dev
.settings
.flags
&= ~DEV_OPT_MACADDR
;
145 vlist_for_each_element(&bst
->members
, bm
, node
) {
151 bst
->primary_port
= bm
;
152 if (bm
->dev
.dev
->settings
.flags
& DEV_OPT_MACADDR
)
153 macaddr
= bm
->dev
.dev
->settings
.macaddr
;
155 macaddr
= bm
->dev
.dev
->orig_settings
.macaddr
;
156 memcpy(bst
->dev
.settings
.macaddr
, macaddr
, 6);
157 bst
->dev
.settings
.flags
|= DEV_OPT_MACADDR
;
162 static struct bridge_vlan_port
*
163 bridge_find_vlan_member_port(struct bridge_member
*bm
, struct bridge_vlan
*vlan
)
165 struct bridge_vlan_hotplug_port
*port
;
166 const char *ifname
= bm
->dev
.dev
->ifname
;
169 for (i
= 0; i
< vlan
->n_ports
; i
++) {
170 if (strcmp(vlan
->ports
[i
].ifname
, ifname
) != 0)
173 return &vlan
->ports
[i
];
176 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
177 if (strcmp(port
->port
.ifname
, ifname
) != 0)
187 bridge_member_vlan_is_pvid(struct bridge_member
*bm
, struct bridge_vlan_port
*port
)
189 return (!bm
->pvid
&& (port
->flags
& BRVLAN_F_UNTAGGED
)) ||
190 (port
->flags
& BRVLAN_F_PVID
);
194 __bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
,
195 struct bridge_vlan_port
*port
, bool add
)
200 if (bm
->pvid
== vlan
->vid
)
201 flags
|= BRVLAN_F_PVID
;
203 system_bridge_vlan(port
->ifname
, vlan
->vid
, add
, flags
);
207 bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
, bool add
)
209 struct bridge_vlan_port
*port
;
214 port
= bridge_find_vlan_member_port(bm
, vlan
);
218 if (bridge_member_vlan_is_pvid(bm
, port
))
219 bm
->pvid
= vlan
->vid
;
221 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
225 bridge_set_local_vlan(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
227 if (!vlan
->local
&& add
)
230 system_bridge_vlan(bst
->dev
.ifname
, vlan
->vid
, add
, BRVLAN_F_SELF
);
234 bridge_set_local_vlans(struct bridge_state
*bst
, bool add
)
236 struct bridge_vlan
*vlan
;
238 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
239 bridge_set_local_vlan(bst
, vlan
, add
);
242 static struct bridge_vlan
*
243 bridge_recalc_member_pvid(struct bridge_member
*bm
)
245 struct bridge_state
*bst
= bm
->bst
;
246 struct bridge_vlan_port
*port
;
247 struct bridge_vlan
*vlan
, *ret
= NULL
;
249 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
250 port
= bridge_find_vlan_member_port(bm
, vlan
);
254 if (!bridge_member_vlan_is_pvid(bm
, port
))
258 if (port
->flags
& BRVLAN_F_PVID
)
266 bridge_set_vlan_state(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
268 struct bridge_member
*bm
;
269 struct bridge_vlan
*vlan2
;
271 bridge_set_local_vlan(bst
, vlan
, add
);
273 vlist_for_each_element(&bst
->members
, bm
, node
) {
274 struct bridge_vlan_port
*port
;
277 port
= bridge_find_vlan_member_port(bm
, vlan
);
282 if (bridge_member_vlan_is_pvid(bm
, port
))
283 bm
->pvid
= vlan
->vid
;
284 } else if (bm
->pvid
== vlan
->vid
) {
285 vlan2
= bridge_recalc_member_pvid(bm
);
286 if (vlan2
&& vlan2
->vid
!= vlan
->vid
) {
287 bridge_set_member_vlan(bm
, vlan2
, false);
288 bridge_set_member_vlan(bm
, vlan2
, true);
290 new_pvid
= vlan2
? vlan2
->vid
: 0;
296 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
303 bridge_disable_member(struct bridge_member
*bm
, bool keep_dev
)
305 struct bridge_state
*bst
= bm
->bst
;
306 struct bridge_vlan
*vlan
;
308 if (!bm
->present
|| !bm
->active
)
312 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
313 bridge_set_member_vlan(bm
, vlan
, false);
315 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
317 device_release(&bm
->dev
);
319 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
325 bridge_enable_interface(struct bridge_state
*bst
)
332 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
336 if (bst
->has_vlans
) {
337 /* delete default VLAN 1 */
338 system_bridge_vlan(bst
->dev
.ifname
, 1, false, BRVLAN_F_SELF
);
340 bridge_set_local_vlans(bst
, true);
348 bridge_disable_interface(struct bridge_state
*bst
)
353 system_bridge_delbr(&bst
->dev
);
358 bridge_enable_member(struct bridge_member
*bm
)
360 struct bridge_state
*bst
= bm
->bst
;
361 struct bridge_vlan
*vlan
;
368 ret
= bridge_enable_interface(bst
);
372 /* Disable IPv6 for bridge members */
373 if (!(bm
->dev
.dev
->settings
.flags
& DEV_OPT_IPV6
)) {
374 bm
->dev
.dev
->settings
.ipv6
= 0;
375 bm
->dev
.dev
->settings
.flags
|= DEV_OPT_IPV6
;
378 ret
= device_claim(&bm
->dev
);
383 if (dev
->settings
.auth
&& !dev
->auth_status
)
389 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
391 D(DEVICE
, "Bridge device %s could not be added\n", bm
->dev
.dev
->ifname
);
396 if (bst
->has_vlans
) {
397 /* delete default VLAN 1 */
398 system_bridge_vlan(bm
->dev
.dev
->ifname
, 1, false, 0);
400 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
401 bridge_set_member_vlan(bm
, vlan
, true);
404 device_set_present(&bst
->dev
, true);
405 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
413 device_release(&bm
->dev
);
419 bridge_remove_member(struct bridge_member
*bm
)
421 struct bridge_state
*bst
= bm
->bst
;
427 bridge_disable_member(bm
, false);
430 bm
->bst
->n_present
--;
432 if (bm
== bst
->primary_port
)
433 bridge_reset_primary(bst
);
435 if (bst
->config
.bridge_empty
)
438 bst
->force_active
= false;
439 if (bst
->n_present
== 0)
440 device_set_present(&bst
->dev
, false);
444 bridge_free_member(struct bridge_member
*bm
)
446 struct bridge_state
*bst
= bm
->bst
;
447 struct device
*dev
= bm
->dev
.dev
;
448 const char *ifname
= dev
->ifname
;
449 struct bridge_vlan
*vlan
;
451 bridge_remove_member(bm
);
454 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
455 struct bridge_vlan_hotplug_port
*port
, *tmp
;
456 bool free_port
= false;
458 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
) {
459 if (strcmp(port
->port
.ifname
, ifname
) != 0)
462 list_del(&port
->list
);
467 if (!free_port
|| !list_empty(&vlan
->hotplug_ports
) ||
468 vlan
->n_ports
|| vlan
->node
.version
!= -1)
471 vlist_delete(&bst
->dev
.vlans
, &vlan
->node
);
477 device_remove_user(&bm
->dev
);
480 * When reloading the config and moving a device from one bridge to
481 * another, the other bridge may have tried to claim this device
482 * before it was removed here.
483 * Ensure that claiming the device is retried by toggling its present
487 device_set_present(dev
, false);
488 device_set_present(dev
, true);
497 bridge_check_retry(struct bridge_state
*bst
)
502 uloop_timeout_set(&bst
->retry
, 100);
506 bridge_member_cb(struct device_user
*dep
, enum device_event ev
)
508 struct bridge_member
*bm
= container_of(dep
, struct bridge_member
, dev
);
509 struct bridge_state
*bst
= bm
->bst
;
510 struct device
*dev
= dep
->dev
;
514 assert(!bm
->present
);
519 if (bst
->n_present
== 1)
520 device_set_present(&bst
->dev
, true);
522 case DEV_EVENT_AUTH_UP
:
523 if (!bst
->dev
.active
)
526 if (bridge_enable_member(bm
))
530 * Adding a bridge member can overwrite the bridge mtu
531 * in the kernel, apply the bridge settings in case the
534 system_if_apply_settings(&bst
->dev
, &bst
->dev
.settings
,
535 DEV_OPT_MTU
| DEV_OPT_MTU6
);
537 case DEV_EVENT_LINK_DOWN
:
538 if (!dev
->settings
.auth
)
541 bridge_disable_member(bm
, true);
543 case DEV_EVENT_REMOVE
:
545 vlist_delete(&bst
->members
, &bm
->node
);
550 bridge_remove_member(bm
);
559 bridge_set_down(struct bridge_state
*bst
)
561 struct bridge_member
*bm
;
563 bst
->set_state(&bst
->dev
, false);
565 vlist_for_each_element(&bst
->members
, bm
, node
)
566 bridge_disable_member(bm
, false);
568 bridge_disable_interface(bst
);
574 bridge_set_up(struct bridge_state
*bst
)
576 struct bridge_member
*bm
;
579 bst
->has_vlans
= !avl_is_empty(&bst
->dev
.vlans
.avl
);
580 if (!bst
->n_present
) {
581 if (!bst
->force_active
)
584 ret
= bridge_enable_interface(bst
);
590 vlist_for_each_element(&bst
->members
, bm
, node
)
591 bridge_enable_member(bm
);
592 bridge_check_retry(bst
);
594 if (!bst
->force_active
&& !bst
->n_present
) {
595 /* initialization of all member interfaces failed */
596 bridge_disable_interface(bst
);
597 device_set_present(&bst
->dev
, false);
601 bridge_reset_primary(bst
);
602 ret
= bst
->set_state(&bst
->dev
, true);
604 bridge_set_down(bst
);
610 bridge_set_state(struct device
*dev
, bool up
)
612 struct bridge_state
*bst
;
614 bst
= container_of(dev
, struct bridge_state
, dev
);
617 return bridge_set_up(bst
);
619 return bridge_set_down(bst
);
622 static struct bridge_member
*
623 bridge_create_member(struct bridge_state
*bst
, const char *name
,
624 struct device
*dev
, bool hotplug
)
626 struct bridge_member
*bm
;
628 bm
= calloc(1, sizeof(*bm
) + strlen(name
) + 1);
633 bm
->dev
.cb
= bridge_member_cb
;
634 bm
->dev
.hotplug
= hotplug
;
635 strcpy(bm
->name
, name
);
637 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
639 * Need to look up the bridge member again as the above
640 * created pointer will be freed in case the bridge member
643 bm
= vlist_find(&bst
->members
, name
, bm
, node
);
645 bm
->node
.version
= -1;
651 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
652 struct vlist_node
*node_old
)
654 struct bridge_member
*bm
;
658 bm
= container_of(node_new
, struct bridge_member
, node
);
667 device_add_user(&bm
->dev
, dev
);
672 bm
= container_of(node_old
, struct bridge_member
, node
);
673 bridge_free_member(bm
);
679 bridge_add_member(struct bridge_state
*bst
, const char *name
)
683 dev
= device_get(name
, true);
687 bridge_create_member(bst
, name
, dev
, false);
690 static struct bridge_vlan
*
691 bridge_hotplug_get_vlan(struct bridge_state
*bst
, unsigned int vid
)
693 struct bridge_vlan
*vlan
;
695 vlan
= vlist_find(&bst
->dev
.vlans
, &vid
, vlan
, node
);
699 vlan
= calloc(1, sizeof(*vlan
));
702 INIT_LIST_HEAD(&vlan
->hotplug_ports
);
703 vlist_add(&bst
->dev
.vlans
, &vlan
->node
, &vlan
->vid
);
704 vlan
->node
.version
= -1;
709 static struct bridge_vlan_hotplug_port
*
710 bridge_hotplug_get_vlan_port(struct bridge_vlan
*vlan
, const char *ifname
)
712 struct bridge_vlan_hotplug_port
*port
;
714 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
715 if (!strcmp(port
->port
.ifname
, ifname
))
722 bridge_hotplug_set_member_vlans(struct bridge_state
*bst
, struct blob_attr
*vlans
,
723 const char *ifname
, struct bridge_member
*bm
, bool add
)
725 struct bridge_vlan
*vlan
;
726 struct blob_attr
*cur
;
732 blobmsg_for_each_attr(cur
, vlans
, rem
) {
733 struct bridge_vlan_hotplug_port
*port
;
734 uint16_t flags
= BRVLAN_F_UNTAGGED
;
739 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
742 vid
= strtoul(blobmsg_get_string(cur
), &end
, 0);
743 if (!vid
|| vid
> 4095)
746 vlan
= bridge_hotplug_get_vlan(bst
, vid
);
754 for (end
++; *end
; end
++) {
757 flags
&= ~BRVLAN_F_UNTAGGED
;
760 flags
|= BRVLAN_F_PVID
;
766 port
= bridge_hotplug_get_vlan_port(vlan
, ifname
);
771 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, false);
772 list_del(&port
->list
);
778 if (port
->port
.flags
== flags
)
781 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, false);
782 port
->port
.flags
= flags
;
783 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, true);
787 port
= calloc_a(sizeof(*port
), &name_buf
, strlen(ifname
) + 1);
791 port
->port
.flags
= flags
;
792 port
->port
.ifname
= strcpy(name_buf
, ifname
);
793 list_add_tail(&port
->list
, &vlan
->hotplug_ports
);
798 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, true);
803 bridge_hotplug_add(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
805 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
806 struct bridge_member
*bm
;
808 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
809 bridge_hotplug_set_member_vlans(bst
, vlan
, member
->ifname
, bm
, true);
811 bridge_create_member(bst
, member
->ifname
, member
, true);
817 bridge_hotplug_del(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
819 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
820 struct bridge_member
*bm
;
822 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
824 return UBUS_STATUS_NOT_FOUND
;
826 bridge_hotplug_set_member_vlans(bst
, vlan
, member
->ifname
, bm
, false);
827 if (!bm
->dev
.hotplug
)
830 vlist_delete(&bst
->members
, &bm
->node
);
835 bridge_hotplug_prepare(struct device
*dev
, struct device
**bridge_dev
)
837 struct bridge_state
*bst
;
842 bst
= container_of(dev
, struct bridge_state
, dev
);
843 bst
->force_active
= true;
844 device_set_present(&bst
->dev
, true);
849 static const struct device_hotplug_ops bridge_ops
= {
850 .prepare
= bridge_hotplug_prepare
,
851 .add
= bridge_hotplug_add
,
852 .del
= bridge_hotplug_del
856 bridge_free(struct device
*dev
)
858 struct bridge_state
*bst
;
860 bst
= container_of(dev
, struct bridge_state
, dev
);
861 vlist_flush_all(&bst
->members
);
862 vlist_flush_all(&dev
->vlans
);
863 kvlist_free(&dev
->vlan_aliases
);
864 free(bst
->config_data
);
869 bridge_dump_port(struct blob_buf
*b
, struct bridge_vlan_port
*port
)
871 bool tagged
= !(port
->flags
& BRVLAN_F_UNTAGGED
);
872 bool pvid
= (port
->flags
& BRVLAN_F_PVID
);
874 blobmsg_printf(b
, "%s%s%s%s\n", port
->ifname
,
875 tagged
|| pvid
? ":" : "",
881 bridge_dump_vlan(struct blob_buf
*b
, struct bridge_vlan
*vlan
)
883 struct bridge_vlan_hotplug_port
*port
;
887 c
= blobmsg_open_table(b
, NULL
);
889 blobmsg_add_u32(b
, "id", vlan
->vid
);
890 blobmsg_add_u8(b
, "local", vlan
->local
);
892 p
= blobmsg_open_array(b
, "ports");
894 for (i
= 0; i
< vlan
->n_ports
; i
++)
895 bridge_dump_port(b
, &vlan
->ports
[i
]);
897 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
898 bridge_dump_port(b
, &port
->port
);
900 blobmsg_close_array(b
, p
);
902 blobmsg_close_table(b
, c
);
906 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
908 struct bridge_state
*bst
;
909 struct bridge_member
*bm
;
910 struct bridge_vlan
*vlan
;
913 bst
= container_of(dev
, struct bridge_state
, dev
);
915 system_if_dump_info(dev
, b
);
916 list
= blobmsg_open_array(b
, "bridge-members");
918 vlist_for_each_element(&bst
->members
, bm
, node
) {
919 if (bm
->dev
.dev
->hidden
)
922 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
925 blobmsg_close_array(b
, list
);
927 if (avl_is_empty(&dev
->vlans
.avl
))
930 list
= blobmsg_open_array(b
, "bridge-vlans");
932 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
933 bridge_dump_vlan(b
, vlan
);
935 blobmsg_close_array(b
, list
);
939 bridge_config_init(struct device
*dev
)
941 struct bridge_state
*bst
;
942 struct bridge_vlan
*vlan
;
943 struct blob_attr
*cur
;
946 bst
= container_of(dev
, struct bridge_state
, dev
);
948 if (bst
->config
.bridge_empty
) {
949 bst
->force_active
= true;
950 device_set_present(&bst
->dev
, true);
954 vlist_update(&bst
->members
);
956 blobmsg_for_each_attr(cur
, bst
->ports
, rem
) {
957 bridge_add_member(bst
, blobmsg_data(cur
));
961 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
962 for (i
= 0; i
< vlan
->n_ports
; i
++)
963 bridge_add_member(bst
, vlan
->ports
[i
].ifname
);
965 vlist_flush(&bst
->members
);
966 bridge_check_retry(bst
);
970 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
972 struct bridge_config
*cfg
= &bst
->config
;
973 struct blob_attr
*cur
;
977 cfg
->forward_delay
= 2;
979 cfg
->igmp_snoop
= false;
980 cfg
->multicast_querier
= false;
981 cfg
->query_interval
= 12500;
982 cfg
->query_response_interval
= 1000;
983 cfg
->last_member_interval
= 100;
985 cfg
->bridge_empty
= false;
986 cfg
->priority
= 0x7FFF;
987 cfg
->vlan_filtering
= false;
989 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
990 cfg
->stp
= blobmsg_get_bool(cur
);
992 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
993 cfg
->forward_delay
= blobmsg_get_u32(cur
);
995 if ((cur
= tb
[BRIDGE_ATTR_PRIORITY
]))
996 cfg
->priority
= blobmsg_get_u32(cur
);
998 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
999 cfg
->multicast_querier
= cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
1001 if ((cur
= tb
[BRIDGE_ATTR_MULTICAST_QUERIER
]))
1002 cfg
->multicast_querier
= blobmsg_get_bool(cur
);
1004 if ((cur
= tb
[BRIDGE_ATTR_HASH_MAX
]))
1005 cfg
->hash_max
= blobmsg_get_u32(cur
);
1007 if ((cur
= tb
[BRIDGE_ATTR_ROBUSTNESS
])) {
1008 cfg
->robustness
= blobmsg_get_u32(cur
);
1009 cfg
->flags
|= BRIDGE_OPT_ROBUSTNESS
;
1012 if ((cur
= tb
[BRIDGE_ATTR_QUERY_INTERVAL
])) {
1013 cfg
->query_interval
= blobmsg_get_u32(cur
);
1014 cfg
->flags
|= BRIDGE_OPT_QUERY_INTERVAL
;
1017 if ((cur
= tb
[BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
])) {
1018 cfg
->query_response_interval
= blobmsg_get_u32(cur
);
1019 cfg
->flags
|= BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
;
1022 if ((cur
= tb
[BRIDGE_ATTR_LAST_MEMBER_INTERVAL
])) {
1023 cfg
->last_member_interval
= blobmsg_get_u32(cur
);
1024 cfg
->flags
|= BRIDGE_OPT_LAST_MEMBER_INTERVAL
;
1027 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
1028 cfg
->ageing_time
= blobmsg_get_u32(cur
);
1029 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
1032 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
1033 cfg
->hello_time
= blobmsg_get_u32(cur
);
1034 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
1037 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
1038 cfg
->max_age
= blobmsg_get_u32(cur
);
1039 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
1042 if ((cur
= tb
[BRIDGE_ATTR_BRIDGE_EMPTY
]))
1043 cfg
->bridge_empty
= blobmsg_get_bool(cur
);
1045 if ((cur
= tb
[BRIDGE_ATTR_VLAN_FILTERING
]))
1046 cfg
->vlan_filtering
= blobmsg_get_bool(cur
);
1049 static enum dev_change_type
1050 bridge_reload(struct device
*dev
, struct blob_attr
*attr
)
1052 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
1053 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
1054 enum dev_change_type ret
= DEV_CONFIG_APPLIED
;
1056 struct bridge_state
*bst
;
1058 BUILD_BUG_ON(sizeof(diff
) < __BRIDGE_ATTR_MAX
/ 8);
1059 BUILD_BUG_ON(sizeof(diff
) < __DEV_ATTR_MAX
/ 8);
1061 bst
= container_of(dev
, struct bridge_state
, dev
);
1062 attr
= blob_memdup(attr
);
1064 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
1065 blob_data(attr
), blob_len(attr
));
1066 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
1067 blob_data(attr
), blob_len(attr
));
1069 if (tb_dev
[DEV_ATTR_MACADDR
])
1070 bst
->primary_port
= NULL
;
1072 bst
->ports
= tb_br
[BRIDGE_ATTR_PORTS
];
1073 device_init_settings(dev
, tb_dev
);
1074 bridge_apply_settings(bst
, tb_br
);
1076 if (bst
->config_data
) {
1077 struct blob_attr
*otb_dev
[__DEV_ATTR_MAX
];
1078 struct blob_attr
*otb_br
[__BRIDGE_ATTR_MAX
];
1080 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, otb_dev
,
1081 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1084 uci_blob_diff(tb_dev
, otb_dev
, &device_attr_list
, &diff
);
1086 ret
= DEV_CONFIG_RESTART
;
1088 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, otb_br
,
1089 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1092 uci_blob_diff(tb_br
, otb_br
, &bridge_attr_list
, &diff
);
1093 if (diff
& ~(1 << BRIDGE_ATTR_PORTS
))
1094 ret
= DEV_CONFIG_RESTART
;
1096 bridge_config_init(dev
);
1099 free(bst
->config_data
);
1100 bst
->config_data
= attr
;
1105 bridge_retry_members(struct uloop_timeout
*timeout
)
1107 struct bridge_state
*bst
= container_of(timeout
, struct bridge_state
, retry
);
1108 struct bridge_member
*bm
;
1111 vlist_for_each_element(&bst
->members
, bm
, node
) {
1115 if (!bm
->dev
.dev
->present
)
1120 bridge_enable_member(bm
);
1124 static int bridge_avl_cmp_u16(const void *k1
, const void *k2
, void *ptr
)
1126 const uint16_t *i1
= k1
, *i2
= k2
;
1132 bridge_vlan_equal(struct bridge_vlan
*v1
, struct bridge_vlan
*v2
)
1136 if (v1
->n_ports
!= v2
->n_ports
)
1139 for (i
= 0; i
< v1
->n_ports
; i
++)
1140 if (v1
->ports
[i
].flags
!= v2
->ports
[i
].flags
||
1141 strcmp(v1
->ports
[i
].ifname
, v2
->ports
[i
].ifname
) != 0)
1148 bridge_vlan_free(struct bridge_vlan
*vlan
)
1150 struct bridge_vlan_hotplug_port
*port
, *tmp
;
1155 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
)
1162 bridge_vlan_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
1163 struct vlist_node
*node_old
)
1165 struct bridge_state
*bst
= container_of(tree
, struct bridge_state
, dev
.vlans
);
1166 struct bridge_vlan
*vlan_new
= NULL
, *vlan_old
= NULL
;
1168 if (!bst
->has_vlans
|| !bst
->active
)
1172 vlan_old
= container_of(node_old
, struct bridge_vlan
, node
);
1174 vlan_new
= container_of(node_new
, struct bridge_vlan
, node
);
1176 if (node_new
&& node_old
&& bridge_vlan_equal(vlan_old
, vlan_new
)) {
1177 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1182 bridge_set_vlan_state(bst
, vlan_old
, false);
1184 if (node_old
&& node_new
)
1185 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1188 bridge_set_vlan_state(bst
, vlan_new
, true);
1190 bst
->dev
.config_pending
= true;
1193 bridge_vlan_free(vlan_old
);
1196 static struct device
*
1197 bridge_create(const char *name
, struct device_type
*devtype
,
1198 struct blob_attr
*attr
)
1200 struct bridge_state
*bst
;
1201 struct device
*dev
= NULL
;
1203 bst
= calloc(1, sizeof(*bst
));
1209 if (device_init(dev
, devtype
, name
) < 0) {
1210 device_cleanup(dev
);
1215 dev
->config_pending
= true;
1216 bst
->retry
.cb
= bridge_retry_members
;
1218 bst
->set_state
= dev
->set_state
;
1219 dev
->set_state
= bridge_set_state
;
1221 dev
->hotplug_ops
= &bridge_ops
;
1223 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
1224 bst
->members
.keep_old
= true;
1226 vlist_init(&dev
->vlans
, bridge_avl_cmp_u16
, bridge_vlan_update
);
1228 bridge_reload(dev
, attr
);
1233 static void __init
bridge_device_type_init(void)
1235 device_type_add(&bridge_device_type
);