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
;
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
);
453 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
454 struct bridge_vlan_hotplug_port
*port
, *tmp
;
456 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
) {
457 if (strcmp(port
->port
.ifname
, ifname
) != 0)
460 list_del(&port
->list
);
467 device_remove_user(&bm
->dev
);
470 * When reloading the config and moving a device from one bridge to
471 * another, the other bridge may have tried to claim this device
472 * before it was removed here.
473 * Ensure that claiming the device is retried by toggling its present
477 device_set_present(dev
, false);
478 device_set_present(dev
, true);
487 bridge_check_retry(struct bridge_state
*bst
)
492 uloop_timeout_set(&bst
->retry
, 100);
496 bridge_member_cb(struct device_user
*dep
, enum device_event ev
)
498 struct bridge_member
*bm
= container_of(dep
, struct bridge_member
, dev
);
499 struct bridge_state
*bst
= bm
->bst
;
500 struct device
*dev
= dep
->dev
;
504 assert(!bm
->present
);
509 if (bst
->n_present
== 1)
510 device_set_present(&bst
->dev
, true);
512 case DEV_EVENT_AUTH_UP
:
513 if (!bst
->dev
.active
)
516 if (bridge_enable_member(bm
))
520 * Adding a bridge member can overwrite the bridge mtu
521 * in the kernel, apply the bridge settings in case the
524 system_if_apply_settings(&bst
->dev
, &bst
->dev
.settings
,
525 DEV_OPT_MTU
| DEV_OPT_MTU6
);
527 case DEV_EVENT_LINK_DOWN
:
528 if (!dev
->settings
.auth
)
531 bridge_disable_member(bm
, true);
533 case DEV_EVENT_REMOVE
:
535 vlist_delete(&bst
->members
, &bm
->node
);
540 bridge_remove_member(bm
);
549 bridge_set_down(struct bridge_state
*bst
)
551 struct bridge_member
*bm
;
553 bst
->set_state(&bst
->dev
, false);
555 vlist_for_each_element(&bst
->members
, bm
, node
)
556 bridge_disable_member(bm
, false);
558 bridge_disable_interface(bst
);
564 bridge_set_up(struct bridge_state
*bst
)
566 struct bridge_member
*bm
;
569 bst
->has_vlans
= !avl_is_empty(&bst
->dev
.vlans
.avl
);
570 if (!bst
->n_present
) {
571 if (!bst
->force_active
)
574 ret
= bridge_enable_interface(bst
);
580 vlist_for_each_element(&bst
->members
, bm
, node
)
581 bridge_enable_member(bm
);
582 bridge_check_retry(bst
);
584 if (!bst
->force_active
&& !bst
->n_present
) {
585 /* initialization of all member interfaces failed */
586 bridge_disable_interface(bst
);
587 device_set_present(&bst
->dev
, false);
591 bridge_reset_primary(bst
);
592 ret
= bst
->set_state(&bst
->dev
, true);
594 bridge_set_down(bst
);
600 bridge_set_state(struct device
*dev
, bool up
)
602 struct bridge_state
*bst
;
604 bst
= container_of(dev
, struct bridge_state
, dev
);
607 return bridge_set_up(bst
);
609 return bridge_set_down(bst
);
612 static struct bridge_member
*
613 bridge_create_member(struct bridge_state
*bst
, const char *name
,
614 struct device
*dev
, bool hotplug
)
616 struct bridge_member
*bm
;
618 bm
= calloc(1, sizeof(*bm
) + strlen(name
) + 1);
623 bm
->dev
.cb
= bridge_member_cb
;
624 bm
->dev
.hotplug
= hotplug
;
625 strcpy(bm
->name
, name
);
627 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
629 * Need to look up the bridge member again as the above
630 * created pointer will be freed in case the bridge member
633 bm
= vlist_find(&bst
->members
, name
, bm
, node
);
635 bm
->node
.version
= -1;
641 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
642 struct vlist_node
*node_old
)
644 struct bridge_member
*bm
;
648 bm
= container_of(node_new
, struct bridge_member
, node
);
657 device_add_user(&bm
->dev
, dev
);
662 bm
= container_of(node_old
, struct bridge_member
, node
);
663 bridge_free_member(bm
);
669 bridge_add_member(struct bridge_state
*bst
, const char *name
)
673 dev
= device_get(name
, true);
677 bridge_create_member(bst
, name
, dev
, false);
681 bridge_hotplug_create_member_vlans(struct bridge_state
*bst
, struct blob_attr
*vlans
, const char *ifname
)
683 struct bridge_vlan
*vlan
;
684 struct blob_attr
*cur
;
690 blobmsg_for_each_attr(cur
, vlans
, rem
) {
691 struct bridge_vlan_hotplug_port
*port
;
692 uint16_t flags
= BRVLAN_F_UNTAGGED
;
697 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
700 vid
= strtoul(blobmsg_get_string(cur
), &end
, 0);
701 if (!vid
|| vid
> 4095)
704 vlan
= vlist_find(&bst
->dev
.vlans
, &vid
, vlan
, node
);
712 for (end
++; *end
; end
++) {
715 flags
&= ~BRVLAN_F_UNTAGGED
;
718 flags
|= BRVLAN_F_PVID
;
724 port
= calloc_a(sizeof(*port
), &name_buf
, strlen(ifname
) + 1);
728 port
->port
.flags
= flags
;
729 port
->port
.ifname
= strcpy(name_buf
, ifname
);
730 list_add_tail(&port
->list
, &vlan
->hotplug_ports
);
735 bridge_hotplug_add(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
737 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
739 bridge_hotplug_create_member_vlans(bst
, vlan
, member
->ifname
);
740 bridge_create_member(bst
, member
->ifname
, member
, true);
746 bridge_hotplug_del(struct device
*dev
, struct device
*member
)
748 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
749 struct bridge_member
*bm
;
751 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
753 return UBUS_STATUS_NOT_FOUND
;
755 vlist_delete(&bst
->members
, &bm
->node
);
760 bridge_hotplug_prepare(struct device
*dev
, struct device
**bridge_dev
)
762 struct bridge_state
*bst
;
767 bst
= container_of(dev
, struct bridge_state
, dev
);
768 bst
->force_active
= true;
769 device_set_present(&bst
->dev
, true);
774 static const struct device_hotplug_ops bridge_ops
= {
775 .prepare
= bridge_hotplug_prepare
,
776 .add
= bridge_hotplug_add
,
777 .del
= bridge_hotplug_del
781 bridge_free(struct device
*dev
)
783 struct bridge_state
*bst
;
785 bst
= container_of(dev
, struct bridge_state
, dev
);
786 vlist_flush_all(&bst
->members
);
787 vlist_flush_all(&dev
->vlans
);
788 kvlist_free(&dev
->vlan_aliases
);
789 free(bst
->config_data
);
794 bridge_dump_port(struct blob_buf
*b
, struct bridge_vlan_port
*port
)
796 bool tagged
= !(port
->flags
& BRVLAN_F_UNTAGGED
);
797 bool pvid
= (port
->flags
& BRVLAN_F_PVID
);
799 blobmsg_printf(b
, "%s%s%s%s\n", port
->ifname
,
800 tagged
|| pvid
? ":" : "",
806 bridge_dump_vlan(struct blob_buf
*b
, struct bridge_vlan
*vlan
)
808 struct bridge_vlan_hotplug_port
*port
;
812 c
= blobmsg_open_table(b
, NULL
);
814 blobmsg_add_u32(b
, "id", vlan
->vid
);
815 blobmsg_add_u8(b
, "local", vlan
->local
);
817 p
= blobmsg_open_array(b
, "ports");
819 for (i
= 0; i
< vlan
->n_ports
; i
++)
820 bridge_dump_port(b
, &vlan
->ports
[i
]);
822 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
823 bridge_dump_port(b
, &port
->port
);
825 blobmsg_close_array(b
, p
);
827 blobmsg_close_table(b
, c
);
831 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
833 struct bridge_state
*bst
;
834 struct bridge_member
*bm
;
835 struct bridge_vlan
*vlan
;
838 bst
= container_of(dev
, struct bridge_state
, dev
);
840 system_if_dump_info(dev
, b
);
841 list
= blobmsg_open_array(b
, "bridge-members");
843 vlist_for_each_element(&bst
->members
, bm
, node
) {
844 if (bm
->dev
.dev
->hidden
)
847 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
850 blobmsg_close_array(b
, list
);
852 if (avl_is_empty(&dev
->vlans
.avl
))
855 list
= blobmsg_open_array(b
, "bridge-vlans");
857 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
858 bridge_dump_vlan(b
, vlan
);
860 blobmsg_close_array(b
, list
);
864 bridge_config_init(struct device
*dev
)
866 struct bridge_state
*bst
;
867 struct bridge_vlan
*vlan
;
868 struct blob_attr
*cur
;
871 bst
= container_of(dev
, struct bridge_state
, dev
);
873 if (bst
->config
.bridge_empty
) {
874 bst
->force_active
= true;
875 device_set_present(&bst
->dev
, true);
879 vlist_update(&bst
->members
);
881 blobmsg_for_each_attr(cur
, bst
->ifnames
, rem
) {
882 bridge_add_member(bst
, blobmsg_data(cur
));
886 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
887 for (i
= 0; i
< vlan
->n_ports
; i
++)
888 bridge_add_member(bst
, vlan
->ports
[i
].ifname
);
890 vlist_flush(&bst
->members
);
891 bridge_check_retry(bst
);
895 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
897 struct bridge_config
*cfg
= &bst
->config
;
898 struct blob_attr
*cur
;
902 cfg
->forward_delay
= 2;
904 cfg
->igmp_snoop
= false;
905 cfg
->multicast_querier
= false;
906 cfg
->query_interval
= 12500;
907 cfg
->query_response_interval
= 1000;
908 cfg
->last_member_interval
= 100;
910 cfg
->bridge_empty
= false;
911 cfg
->priority
= 0x7FFF;
912 cfg
->vlan_filtering
= false;
914 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
915 cfg
->stp
= blobmsg_get_bool(cur
);
917 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
918 cfg
->forward_delay
= blobmsg_get_u32(cur
);
920 if ((cur
= tb
[BRIDGE_ATTR_PRIORITY
]))
921 cfg
->priority
= blobmsg_get_u32(cur
);
923 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
924 cfg
->multicast_querier
= cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
926 if ((cur
= tb
[BRIDGE_ATTR_MULTICAST_QUERIER
]))
927 cfg
->multicast_querier
= blobmsg_get_bool(cur
);
929 if ((cur
= tb
[BRIDGE_ATTR_HASH_MAX
]))
930 cfg
->hash_max
= blobmsg_get_u32(cur
);
932 if ((cur
= tb
[BRIDGE_ATTR_ROBUSTNESS
])) {
933 cfg
->robustness
= blobmsg_get_u32(cur
);
934 cfg
->flags
|= BRIDGE_OPT_ROBUSTNESS
;
937 if ((cur
= tb
[BRIDGE_ATTR_QUERY_INTERVAL
])) {
938 cfg
->query_interval
= blobmsg_get_u32(cur
);
939 cfg
->flags
|= BRIDGE_OPT_QUERY_INTERVAL
;
942 if ((cur
= tb
[BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
])) {
943 cfg
->query_response_interval
= blobmsg_get_u32(cur
);
944 cfg
->flags
|= BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
;
947 if ((cur
= tb
[BRIDGE_ATTR_LAST_MEMBER_INTERVAL
])) {
948 cfg
->last_member_interval
= blobmsg_get_u32(cur
);
949 cfg
->flags
|= BRIDGE_OPT_LAST_MEMBER_INTERVAL
;
952 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
953 cfg
->ageing_time
= blobmsg_get_u32(cur
);
954 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
957 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
958 cfg
->hello_time
= blobmsg_get_u32(cur
);
959 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
962 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
963 cfg
->max_age
= blobmsg_get_u32(cur
);
964 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
967 if ((cur
= tb
[BRIDGE_ATTR_BRIDGE_EMPTY
]))
968 cfg
->bridge_empty
= blobmsg_get_bool(cur
);
970 if ((cur
= tb
[BRIDGE_ATTR_VLAN_FILTERING
]))
971 cfg
->vlan_filtering
= blobmsg_get_bool(cur
);
974 static enum dev_change_type
975 bridge_reload(struct device
*dev
, struct blob_attr
*attr
)
977 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
978 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
979 enum dev_change_type ret
= DEV_CONFIG_APPLIED
;
981 struct bridge_state
*bst
;
983 BUILD_BUG_ON(sizeof(diff
) < __BRIDGE_ATTR_MAX
/ 8);
984 BUILD_BUG_ON(sizeof(diff
) < __DEV_ATTR_MAX
/ 8);
986 bst
= container_of(dev
, struct bridge_state
, dev
);
987 attr
= blob_memdup(attr
);
989 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
990 blob_data(attr
), blob_len(attr
));
991 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
992 blob_data(attr
), blob_len(attr
));
994 if (tb_dev
[DEV_ATTR_MACADDR
])
995 bst
->primary_port
= NULL
;
997 bst
->ifnames
= tb_br
[BRIDGE_ATTR_IFNAME
];
998 device_init_settings(dev
, tb_dev
);
999 bridge_apply_settings(bst
, tb_br
);
1001 if (bst
->config_data
) {
1002 struct blob_attr
*otb_dev
[__DEV_ATTR_MAX
];
1003 struct blob_attr
*otb_br
[__BRIDGE_ATTR_MAX
];
1005 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, otb_dev
,
1006 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1009 uci_blob_diff(tb_dev
, otb_dev
, &device_attr_list
, &diff
);
1011 ret
= DEV_CONFIG_RESTART
;
1013 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, otb_br
,
1014 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1017 uci_blob_diff(tb_br
, otb_br
, &bridge_attr_list
, &diff
);
1018 if (diff
& ~(1 << BRIDGE_ATTR_IFNAME
))
1019 ret
= DEV_CONFIG_RESTART
;
1021 bridge_config_init(dev
);
1024 free(bst
->config_data
);
1025 bst
->config_data
= attr
;
1030 bridge_retry_members(struct uloop_timeout
*timeout
)
1032 struct bridge_state
*bst
= container_of(timeout
, struct bridge_state
, retry
);
1033 struct bridge_member
*bm
;
1036 vlist_for_each_element(&bst
->members
, bm
, node
) {
1040 if (!bm
->dev
.dev
->present
)
1045 bridge_enable_member(bm
);
1049 static int bridge_avl_cmp_u16(const void *k1
, const void *k2
, void *ptr
)
1051 const uint16_t *i1
= k1
, *i2
= k2
;
1057 bridge_vlan_equal(struct bridge_vlan
*v1
, struct bridge_vlan
*v2
)
1061 if (v1
->n_ports
!= v2
->n_ports
)
1064 for (i
= 0; i
< v1
->n_ports
; i
++)
1065 if (v1
->ports
[i
].flags
!= v2
->ports
[i
].flags
||
1066 strcmp(v1
->ports
[i
].ifname
, v2
->ports
[i
].ifname
) != 0)
1073 bridge_vlan_free(struct bridge_vlan
*vlan
)
1075 struct bridge_vlan_hotplug_port
*port
, *tmp
;
1080 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
)
1087 bridge_vlan_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
1088 struct vlist_node
*node_old
)
1090 struct bridge_state
*bst
= container_of(tree
, struct bridge_state
, dev
.vlans
);
1091 struct bridge_vlan
*vlan_new
= NULL
, *vlan_old
= NULL
;
1093 if (!bst
->has_vlans
|| !bst
->active
)
1097 vlan_old
= container_of(node_old
, struct bridge_vlan
, node
);
1099 vlan_new
= container_of(node_new
, struct bridge_vlan
, node
);
1101 if (node_new
&& node_old
&& bridge_vlan_equal(vlan_old
, vlan_new
)) {
1102 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1107 bridge_set_vlan_state(bst
, vlan_old
, false);
1109 if (node_old
&& node_new
)
1110 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1113 bridge_set_vlan_state(bst
, vlan_new
, true);
1115 bst
->dev
.config_pending
= true;
1118 bridge_vlan_free(vlan_old
);
1121 static struct device
*
1122 bridge_create(const char *name
, struct device_type
*devtype
,
1123 struct blob_attr
*attr
)
1125 struct bridge_state
*bst
;
1126 struct device
*dev
= NULL
;
1128 bst
= calloc(1, sizeof(*bst
));
1134 if (device_init(dev
, devtype
, name
) < 0) {
1135 device_cleanup(dev
);
1140 dev
->config_pending
= true;
1141 bst
->retry
.cb
= bridge_retry_members
;
1143 bst
->set_state
= dev
->set_state
;
1144 dev
->set_state
= bridge_set_state
;
1146 dev
->hotplug_ops
= &bridge_ops
;
1148 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
1149 bst
->members
.keep_old
= true;
1151 vlist_init(&dev
->vlans
, bridge_avl_cmp_u16
, bridge_vlan_update
);
1153 bridge_reload(dev
, attr
);
1158 static void __init
bridge_device_type_init(void)
1160 device_type_add(&bridge_device_type
);