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_IFNAME
] = { "ifname", 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_IFNAME
] = { .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
*ifnames
;
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
;
128 struct bridge_vlan_hotplug_port
{
129 struct list_head list
;
130 struct bridge_vlan_port port
;
134 bridge_reset_primary(struct bridge_state
*bst
)
136 struct bridge_member
*bm
;
138 if (!bst
->primary_port
&&
139 (bst
->dev
.settings
.flags
& DEV_OPT_MACADDR
))
142 bst
->primary_port
= NULL
;
143 bst
->dev
.settings
.flags
&= ~DEV_OPT_MACADDR
;
144 vlist_for_each_element(&bst
->members
, bm
, node
) {
150 bst
->primary_port
= bm
;
151 if (bm
->dev
.dev
->settings
.flags
& DEV_OPT_MACADDR
)
152 macaddr
= bm
->dev
.dev
->settings
.macaddr
;
154 macaddr
= bm
->dev
.dev
->orig_settings
.macaddr
;
155 memcpy(bst
->dev
.settings
.macaddr
, macaddr
, 6);
156 bst
->dev
.settings
.flags
|= DEV_OPT_MACADDR
;
161 static struct bridge_vlan_port
*
162 bridge_find_vlan_member_port(struct bridge_member
*bm
, struct bridge_vlan
*vlan
)
164 struct bridge_vlan_hotplug_port
*port
;
165 const char *ifname
= bm
->dev
.dev
->ifname
;
168 for (i
= 0; i
< vlan
->n_ports
; i
++) {
169 if (strcmp(vlan
->ports
[i
].ifname
, ifname
) != 0)
172 return &vlan
->ports
[i
];
175 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
176 if (strcmp(port
->port
.ifname
, ifname
) != 0)
186 bridge_member_vlan_is_pvid(struct bridge_member
*bm
, struct bridge_vlan_port
*port
)
188 return (!bm
->pvid
&& (port
->flags
& BRVLAN_F_UNTAGGED
)) ||
189 (port
->flags
& BRVLAN_F_PVID
);
193 __bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
,
194 struct bridge_vlan_port
*port
, bool add
)
199 if (bm
->pvid
== vlan
->vid
)
200 flags
|= BRVLAN_F_PVID
;
202 system_bridge_vlan(port
->ifname
, vlan
->vid
, add
, flags
);
206 bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
, bool add
)
208 struct bridge_vlan_port
*port
;
213 port
= bridge_find_vlan_member_port(bm
, vlan
);
217 if (bridge_member_vlan_is_pvid(bm
, port
))
218 bm
->pvid
= vlan
->vid
;
220 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
224 bridge_set_local_vlan(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
226 if (!vlan
->local
&& add
)
229 system_bridge_vlan(bst
->dev
.ifname
, vlan
->vid
, add
, BRVLAN_F_SELF
);
233 bridge_set_local_vlans(struct bridge_state
*bst
, bool add
)
235 struct bridge_vlan
*vlan
;
237 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
238 bridge_set_local_vlan(bst
, vlan
, add
);
241 static struct bridge_vlan
*
242 bridge_recalc_member_pvid(struct bridge_member
*bm
)
244 struct bridge_state
*bst
= bm
->bst
;
245 struct bridge_vlan_port
*port
;
246 struct bridge_vlan
*vlan
, *ret
= NULL
;
248 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
249 port
= bridge_find_vlan_member_port(bm
, vlan
);
253 if (!bridge_member_vlan_is_pvid(bm
, port
))
257 if (port
->flags
& BRVLAN_F_PVID
)
265 bridge_set_vlan_state(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
267 struct bridge_member
*bm
;
268 struct bridge_vlan
*vlan2
;
270 bridge_set_local_vlan(bst
, vlan
, add
);
272 vlist_for_each_element(&bst
->members
, bm
, node
) {
273 struct bridge_vlan_port
*port
;
276 port
= bridge_find_vlan_member_port(bm
, vlan
);
281 if (bridge_member_vlan_is_pvid(bm
, port
))
282 bm
->pvid
= vlan
->vid
;
283 } else if (bm
->pvid
== vlan
->vid
) {
284 vlan2
= bridge_recalc_member_pvid(bm
);
285 if (vlan2
&& vlan2
->vid
!= vlan
->vid
) {
286 bridge_set_member_vlan(bm
, vlan2
, false);
287 bridge_set_member_vlan(bm
, vlan2
, true);
289 new_pvid
= vlan2
? vlan2
->vid
: 0;
295 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
302 bridge_disable_member(struct bridge_member
*bm
)
304 struct bridge_state
*bst
= bm
->bst
;
305 struct bridge_vlan
*vlan
;
310 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
311 bridge_set_member_vlan(bm
, vlan
, false);
313 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
314 device_release(&bm
->dev
);
316 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
322 bridge_enable_interface(struct bridge_state
*bst
)
329 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
333 if (bst
->has_vlans
) {
334 /* delete default VLAN 1 */
335 system_bridge_vlan(bst
->dev
.ifname
, 1, false, BRVLAN_F_SELF
);
337 bridge_set_local_vlans(bst
, true);
345 bridge_disable_interface(struct bridge_state
*bst
)
350 system_bridge_delbr(&bst
->dev
);
355 bridge_enable_member(struct bridge_member
*bm
)
357 struct bridge_state
*bst
= bm
->bst
;
358 struct bridge_vlan
*vlan
;
364 ret
= bridge_enable_interface(bst
);
368 /* Disable IPv6 for bridge members */
369 if (!(bm
->dev
.dev
->settings
.flags
& DEV_OPT_IPV6
)) {
370 bm
->dev
.dev
->settings
.ipv6
= 0;
371 bm
->dev
.dev
->settings
.flags
|= DEV_OPT_IPV6
;
374 ret
= device_claim(&bm
->dev
);
378 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
380 D(DEVICE
, "Bridge device %s could not be added\n", bm
->dev
.dev
->ifname
);
384 if (bst
->has_vlans
) {
385 /* delete default VLAN 1 */
386 system_bridge_vlan(bm
->dev
.dev
->ifname
, 1, false, 0);
388 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
389 bridge_set_member_vlan(bm
, vlan
, true);
392 device_set_present(&bst
->dev
, true);
393 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
401 device_release(&bm
->dev
);
407 bridge_remove_member(struct bridge_member
*bm
)
409 struct bridge_state
*bst
= bm
->bst
;
415 bridge_disable_member(bm
);
418 bm
->bst
->n_present
--;
420 if (bm
== bst
->primary_port
)
421 bridge_reset_primary(bst
);
423 if (bst
->config
.bridge_empty
)
426 bst
->force_active
= false;
427 if (bst
->n_present
== 0)
428 device_set_present(&bst
->dev
, false);
432 bridge_free_member(struct bridge_member
*bm
)
434 struct bridge_state
*bst
= bm
->bst
;
435 struct device
*dev
= bm
->dev
.dev
;
436 const char *ifname
= dev
->ifname
;
437 struct bridge_vlan
*vlan
;
439 bridge_remove_member(bm
);
441 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
442 struct bridge_vlan_hotplug_port
*port
, *tmp
;
444 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
) {
445 if (strcmp(port
->port
.ifname
, ifname
) != 0)
448 list_del(&port
->list
);
455 device_remove_user(&bm
->dev
);
458 * When reloading the config and moving a device from one bridge to
459 * another, the other bridge may have tried to claim this device
460 * before it was removed here.
461 * Ensure that claiming the device is retried by toggling its present
465 device_set_present(dev
, false);
466 device_set_present(dev
, true);
475 bridge_check_retry(struct bridge_state
*bst
)
480 uloop_timeout_set(&bst
->retry
, 100);
484 bridge_member_cb(struct device_user
*dev
, enum device_event ev
)
486 struct bridge_member
*bm
= container_of(dev
, struct bridge_member
, dev
);
487 struct bridge_state
*bst
= bm
->bst
;
491 assert(!bm
->present
);
496 if (bst
->n_present
== 1)
497 device_set_present(&bst
->dev
, true);
498 if (bst
->dev
.active
&& !bridge_enable_member(bm
)) {
500 * Adding a bridge member can overwrite the bridge mtu
501 * in the kernel, apply the bridge settings in case the
504 system_if_apply_settings(&bst
->dev
, &bst
->dev
.settings
,
505 DEV_OPT_MTU
| DEV_OPT_MTU6
);
509 case DEV_EVENT_REMOVE
:
511 vlist_delete(&bst
->members
, &bm
->node
);
516 bridge_remove_member(bm
);
525 bridge_set_down(struct bridge_state
*bst
)
527 struct bridge_member
*bm
;
529 bst
->set_state(&bst
->dev
, false);
531 vlist_for_each_element(&bst
->members
, bm
, node
)
532 bridge_disable_member(bm
);
534 bridge_disable_interface(bst
);
540 bridge_set_up(struct bridge_state
*bst
)
542 struct bridge_member
*bm
;
545 bst
->has_vlans
= !avl_is_empty(&bst
->dev
.vlans
.avl
);
546 if (!bst
->n_present
) {
547 if (!bst
->force_active
)
550 ret
= bridge_enable_interface(bst
);
556 vlist_for_each_element(&bst
->members
, bm
, node
)
557 bridge_enable_member(bm
);
558 bridge_check_retry(bst
);
560 if (!bst
->force_active
&& !bst
->n_present
) {
561 /* initialization of all member interfaces failed */
562 bridge_disable_interface(bst
);
563 device_set_present(&bst
->dev
, false);
567 bridge_reset_primary(bst
);
568 ret
= bst
->set_state(&bst
->dev
, true);
570 bridge_set_down(bst
);
576 bridge_set_state(struct device
*dev
, bool up
)
578 struct bridge_state
*bst
;
580 bst
= container_of(dev
, struct bridge_state
, dev
);
583 return bridge_set_up(bst
);
585 return bridge_set_down(bst
);
588 static struct bridge_member
*
589 bridge_create_member(struct bridge_state
*bst
, const char *name
,
590 struct device
*dev
, bool hotplug
)
592 struct bridge_member
*bm
;
594 bm
= calloc(1, sizeof(*bm
) + strlen(name
) + 1);
599 bm
->dev
.cb
= bridge_member_cb
;
600 bm
->dev
.hotplug
= hotplug
;
601 strcpy(bm
->name
, name
);
603 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
605 * Need to look up the bridge member again as the above
606 * created pointer will be freed in case the bridge member
609 bm
= vlist_find(&bst
->members
, name
, bm
, node
);
611 bm
->node
.version
= -1;
617 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
618 struct vlist_node
*node_old
)
620 struct bridge_member
*bm
;
624 bm
= container_of(node_new
, struct bridge_member
, node
);
633 device_add_user(&bm
->dev
, dev
);
638 bm
= container_of(node_old
, struct bridge_member
, node
);
639 bridge_free_member(bm
);
645 bridge_add_member(struct bridge_state
*bst
, const char *name
)
649 dev
= device_get(name
, true);
653 bridge_create_member(bst
, name
, dev
, false);
657 bridge_hotplug_create_member_vlans(struct bridge_state
*bst
, struct blob_attr
*vlans
, const char *ifname
)
659 struct bridge_vlan
*vlan
;
660 struct blob_attr
*cur
;
666 blobmsg_for_each_attr(cur
, vlans
, rem
) {
667 struct bridge_vlan_hotplug_port
*port
;
668 uint16_t flags
= BRVLAN_F_UNTAGGED
;
673 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
676 vid
= strtoul(blobmsg_get_string(cur
), &end
, 0);
677 if (!vid
|| vid
> 4095)
680 vlan
= vlist_find(&bst
->dev
.vlans
, &vid
, vlan
, node
);
688 for (end
++; *end
; end
++) {
691 flags
&= ~BRVLAN_F_UNTAGGED
;
694 flags
|= BRVLAN_F_PVID
;
700 port
= calloc_a(sizeof(*port
), &name_buf
, strlen(ifname
) + 1);
704 port
->port
.flags
= flags
;
705 port
->port
.ifname
= strcpy(name_buf
, ifname
);
706 list_add_tail(&port
->list
, &vlan
->hotplug_ports
);
711 bridge_hotplug_add(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
713 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
715 bridge_hotplug_create_member_vlans(bst
, vlan
, member
->ifname
);
716 bridge_create_member(bst
, member
->ifname
, member
, true);
722 bridge_hotplug_del(struct device
*dev
, struct device
*member
)
724 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
725 struct bridge_member
*bm
;
727 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
729 return UBUS_STATUS_NOT_FOUND
;
731 vlist_delete(&bst
->members
, &bm
->node
);
736 bridge_hotplug_prepare(struct device
*dev
, struct device
**bridge_dev
)
738 struct bridge_state
*bst
;
743 bst
= container_of(dev
, struct bridge_state
, dev
);
744 bst
->force_active
= true;
745 device_set_present(&bst
->dev
, true);
750 static const struct device_hotplug_ops bridge_ops
= {
751 .prepare
= bridge_hotplug_prepare
,
752 .add
= bridge_hotplug_add
,
753 .del
= bridge_hotplug_del
757 bridge_free(struct device
*dev
)
759 struct bridge_state
*bst
;
761 bst
= container_of(dev
, struct bridge_state
, dev
);
762 vlist_flush_all(&bst
->members
);
763 vlist_flush_all(&dev
->vlans
);
764 kvlist_free(&dev
->vlan_aliases
);
765 free(bst
->config_data
);
770 bridge_dump_port(struct blob_buf
*b
, struct bridge_vlan_port
*port
)
772 bool tagged
= !(port
->flags
& BRVLAN_F_UNTAGGED
);
773 bool pvid
= (port
->flags
& BRVLAN_F_PVID
);
775 blobmsg_printf(b
, "%s%s%s%s\n", port
->ifname
,
776 tagged
|| pvid
? ":" : "",
782 bridge_dump_vlan(struct blob_buf
*b
, struct bridge_vlan
*vlan
)
784 struct bridge_vlan_hotplug_port
*port
;
788 c
= blobmsg_open_table(b
, NULL
);
790 blobmsg_add_u32(b
, "id", vlan
->vid
);
791 blobmsg_add_u8(b
, "local", vlan
->local
);
793 p
= blobmsg_open_array(b
, "ports");
795 for (i
= 0; i
< vlan
->n_ports
; i
++)
796 bridge_dump_port(b
, &vlan
->ports
[i
]);
798 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
799 bridge_dump_port(b
, &port
->port
);
801 blobmsg_close_array(b
, p
);
803 blobmsg_close_table(b
, c
);
807 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
809 struct bridge_state
*bst
;
810 struct bridge_member
*bm
;
811 struct bridge_vlan
*vlan
;
814 bst
= container_of(dev
, struct bridge_state
, dev
);
816 system_if_dump_info(dev
, b
);
817 list
= blobmsg_open_array(b
, "bridge-members");
819 vlist_for_each_element(&bst
->members
, bm
, node
) {
820 if (bm
->dev
.dev
->hidden
)
823 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
826 blobmsg_close_array(b
, list
);
828 if (avl_is_empty(&dev
->vlans
.avl
))
831 list
= blobmsg_open_array(b
, "bridge-vlans");
833 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
834 bridge_dump_vlan(b
, vlan
);
836 blobmsg_close_array(b
, list
);
840 bridge_config_init(struct device
*dev
)
842 struct bridge_state
*bst
;
843 struct bridge_vlan
*vlan
;
844 struct blob_attr
*cur
;
847 bst
= container_of(dev
, struct bridge_state
, dev
);
849 if (bst
->config
.bridge_empty
) {
850 bst
->force_active
= true;
851 device_set_present(&bst
->dev
, true);
855 vlist_update(&bst
->members
);
857 blobmsg_for_each_attr(cur
, bst
->ifnames
, rem
) {
858 bridge_add_member(bst
, blobmsg_data(cur
));
862 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
863 for (i
= 0; i
< vlan
->n_ports
; i
++)
864 bridge_add_member(bst
, vlan
->ports
[i
].ifname
);
866 vlist_flush(&bst
->members
);
867 bridge_check_retry(bst
);
871 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
873 struct bridge_config
*cfg
= &bst
->config
;
874 struct blob_attr
*cur
;
878 cfg
->forward_delay
= 2;
880 cfg
->query_interval
= 12500;
881 cfg
->query_response_interval
= 1000;
882 cfg
->last_member_interval
= 100;
884 cfg
->bridge_empty
= false;
885 cfg
->priority
= 0x7FFF;
886 cfg
->vlan_filtering
= false;
888 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
889 cfg
->stp
= blobmsg_get_bool(cur
);
891 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
892 cfg
->forward_delay
= blobmsg_get_u32(cur
);
894 if ((cur
= tb
[BRIDGE_ATTR_PRIORITY
]))
895 cfg
->priority
= blobmsg_get_u32(cur
);
897 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
898 cfg
->multicast_querier
= cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
900 if ((cur
= tb
[BRIDGE_ATTR_MULTICAST_QUERIER
]))
901 cfg
->multicast_querier
= blobmsg_get_bool(cur
);
903 if ((cur
= tb
[BRIDGE_ATTR_HASH_MAX
]))
904 cfg
->hash_max
= blobmsg_get_u32(cur
);
906 if ((cur
= tb
[BRIDGE_ATTR_ROBUSTNESS
])) {
907 cfg
->robustness
= blobmsg_get_u32(cur
);
908 cfg
->flags
|= BRIDGE_OPT_ROBUSTNESS
;
911 if ((cur
= tb
[BRIDGE_ATTR_QUERY_INTERVAL
])) {
912 cfg
->query_interval
= blobmsg_get_u32(cur
);
913 cfg
->flags
|= BRIDGE_OPT_QUERY_INTERVAL
;
916 if ((cur
= tb
[BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
])) {
917 cfg
->query_response_interval
= blobmsg_get_u32(cur
);
918 cfg
->flags
|= BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
;
921 if ((cur
= tb
[BRIDGE_ATTR_LAST_MEMBER_INTERVAL
])) {
922 cfg
->last_member_interval
= blobmsg_get_u32(cur
);
923 cfg
->flags
|= BRIDGE_OPT_LAST_MEMBER_INTERVAL
;
926 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
927 cfg
->ageing_time
= blobmsg_get_u32(cur
);
928 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
931 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
932 cfg
->hello_time
= blobmsg_get_u32(cur
);
933 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
936 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
937 cfg
->max_age
= blobmsg_get_u32(cur
);
938 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
941 if ((cur
= tb
[BRIDGE_ATTR_BRIDGE_EMPTY
]))
942 cfg
->bridge_empty
= blobmsg_get_bool(cur
);
944 if ((cur
= tb
[BRIDGE_ATTR_VLAN_FILTERING
]))
945 cfg
->vlan_filtering
= blobmsg_get_bool(cur
);
948 static enum dev_change_type
949 bridge_reload(struct device
*dev
, struct blob_attr
*attr
)
951 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
952 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
953 enum dev_change_type ret
= DEV_CONFIG_APPLIED
;
955 struct bridge_state
*bst
;
957 BUILD_BUG_ON(sizeof(diff
) < __BRIDGE_ATTR_MAX
/ 8);
958 BUILD_BUG_ON(sizeof(diff
) < __DEV_ATTR_MAX
/ 8);
960 bst
= container_of(dev
, struct bridge_state
, dev
);
961 attr
= blob_memdup(attr
);
963 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
964 blob_data(attr
), blob_len(attr
));
965 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
966 blob_data(attr
), blob_len(attr
));
968 if (tb_dev
[DEV_ATTR_MACADDR
])
969 bst
->primary_port
= NULL
;
971 bst
->ifnames
= tb_br
[BRIDGE_ATTR_IFNAME
];
972 device_init_settings(dev
, tb_dev
);
973 bridge_apply_settings(bst
, tb_br
);
975 if (bst
->config_data
) {
976 struct blob_attr
*otb_dev
[__DEV_ATTR_MAX
];
977 struct blob_attr
*otb_br
[__BRIDGE_ATTR_MAX
];
979 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, otb_dev
,
980 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
983 uci_blob_diff(tb_dev
, otb_dev
, &device_attr_list
, &diff
);
985 ret
= DEV_CONFIG_RESTART
;
987 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, otb_br
,
988 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
991 uci_blob_diff(tb_br
, otb_br
, &bridge_attr_list
, &diff
);
992 if (diff
& ~(1 << BRIDGE_ATTR_IFNAME
))
993 ret
= DEV_CONFIG_RESTART
;
995 bridge_config_init(dev
);
998 free(bst
->config_data
);
999 bst
->config_data
= attr
;
1004 bridge_retry_members(struct uloop_timeout
*timeout
)
1006 struct bridge_state
*bst
= container_of(timeout
, struct bridge_state
, retry
);
1007 struct bridge_member
*bm
;
1010 vlist_for_each_element(&bst
->members
, bm
, node
) {
1014 if (!bm
->dev
.dev
->present
)
1019 bridge_enable_member(bm
);
1023 static int bridge_avl_cmp_u16(const void *k1
, const void *k2
, void *ptr
)
1025 const uint16_t *i1
= k1
, *i2
= k2
;
1031 bridge_vlan_equal(struct bridge_vlan
*v1
, struct bridge_vlan
*v2
)
1035 if (v1
->n_ports
!= v2
->n_ports
)
1038 for (i
= 0; i
< v1
->n_ports
; i
++)
1039 if (v1
->ports
[i
].flags
!= v2
->ports
[i
].flags
||
1040 strcmp(v1
->ports
[i
].ifname
, v2
->ports
[i
].ifname
) != 0)
1047 bridge_vlan_free(struct bridge_vlan
*vlan
)
1049 struct bridge_vlan_hotplug_port
*port
, *tmp
;
1054 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
)
1061 bridge_vlan_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
1062 struct vlist_node
*node_old
)
1064 struct bridge_state
*bst
= container_of(tree
, struct bridge_state
, dev
.vlans
);
1065 struct bridge_vlan
*vlan_new
= NULL
, *vlan_old
= NULL
;
1067 if (!bst
->has_vlans
|| !bst
->active
)
1071 vlan_old
= container_of(node_old
, struct bridge_vlan
, node
);
1073 vlan_new
= container_of(node_new
, struct bridge_vlan
, node
);
1075 if (node_new
&& node_old
&& bridge_vlan_equal(vlan_old
, vlan_new
)) {
1076 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1081 bridge_set_vlan_state(bst
, vlan_old
, false);
1083 if (node_old
&& node_new
)
1084 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1087 bridge_set_vlan_state(bst
, vlan_new
, true);
1089 bst
->dev
.config_pending
= true;
1092 bridge_vlan_free(vlan_old
);
1095 static struct device
*
1096 bridge_create(const char *name
, struct device_type
*devtype
,
1097 struct blob_attr
*attr
)
1099 struct bridge_state
*bst
;
1100 struct device
*dev
= NULL
;
1102 bst
= calloc(1, sizeof(*bst
));
1108 if (device_init(dev
, devtype
, name
) < 0) {
1109 device_cleanup(dev
);
1114 dev
->config_pending
= true;
1115 bst
->retry
.cb
= bridge_retry_members
;
1117 bst
->set_state
= dev
->set_state
;
1118 dev
->set_state
= bridge_set_state
;
1120 dev
->hotplug_ops
= &bridge_ops
;
1122 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
1123 bst
->members
.keep_old
= true;
1125 vlist_init(&dev
->vlans
, bridge_avl_cmp_u16
, bridge_vlan_update
);
1127 bridge_reload(dev
, attr
);
1132 static void __init
bridge_device_type_init(void)
1134 device_type_add(&bridge_device_type
);