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"
29 BRIDGE_ATTR_FORWARD_DELAY
,
31 BRIDGE_ATTR_IGMP_SNOOP
,
32 BRIDGE_ATTR_AGEING_TIME
,
33 BRIDGE_ATTR_HELLO_TIME
,
35 BRIDGE_ATTR_BRIDGE_EMPTY
,
36 BRIDGE_ATTR_MULTICAST_QUERIER
,
38 BRIDGE_ATTR_ROBUSTNESS
,
39 BRIDGE_ATTR_QUERY_INTERVAL
,
40 BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
,
41 BRIDGE_ATTR_LAST_MEMBER_INTERVAL
,
42 BRIDGE_ATTR_VLAN_FILTERING
,
43 BRIDGE_ATTR_HAS_VLANS
,
44 BRIDGE_ATTR_STP_KERNEL
,
45 BRIDGE_ATTR_STP_PROTO
,
49 static const struct blobmsg_policy bridge_attrs
[__BRIDGE_ATTR_MAX
] = {
50 [BRIDGE_ATTR_PORTS
] = { "ports", BLOBMSG_TYPE_ARRAY
},
51 [BRIDGE_ATTR_STP
] = { "stp", BLOBMSG_TYPE_BOOL
},
52 [BRIDGE_ATTR_FORWARD_DELAY
] = { "forward_delay", BLOBMSG_TYPE_INT32
},
53 [BRIDGE_ATTR_PRIORITY
] = { "priority", BLOBMSG_TYPE_INT32
},
54 [BRIDGE_ATTR_AGEING_TIME
] = { "ageing_time", BLOBMSG_TYPE_INT32
},
55 [BRIDGE_ATTR_HELLO_TIME
] = { "hello_time", BLOBMSG_TYPE_INT32
},
56 [BRIDGE_ATTR_MAX_AGE
] = { "max_age", BLOBMSG_TYPE_INT32
},
57 [BRIDGE_ATTR_IGMP_SNOOP
] = { "igmp_snooping", BLOBMSG_TYPE_BOOL
},
58 [BRIDGE_ATTR_BRIDGE_EMPTY
] = { "bridge_empty", BLOBMSG_TYPE_BOOL
},
59 [BRIDGE_ATTR_MULTICAST_QUERIER
] = { "multicast_querier", BLOBMSG_TYPE_BOOL
},
60 [BRIDGE_ATTR_HASH_MAX
] = { "hash_max", BLOBMSG_TYPE_INT32
},
61 [BRIDGE_ATTR_ROBUSTNESS
] = { "robustness", BLOBMSG_TYPE_INT32
},
62 [BRIDGE_ATTR_QUERY_INTERVAL
] = { "query_interval", BLOBMSG_TYPE_INT32
},
63 [BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
] = { "query_response_interval", BLOBMSG_TYPE_INT32
},
64 [BRIDGE_ATTR_LAST_MEMBER_INTERVAL
] = { "last_member_interval", BLOBMSG_TYPE_INT32
},
65 [BRIDGE_ATTR_VLAN_FILTERING
] = { "vlan_filtering", BLOBMSG_TYPE_BOOL
},
66 [BRIDGE_ATTR_HAS_VLANS
] = { "__has_vlans", BLOBMSG_TYPE_BOOL
}, /* internal */
67 [BRIDGE_ATTR_STP_KERNEL
] = { "stp_kernel", BLOBMSG_TYPE_BOOL
},
68 [BRIDGE_ATTR_STP_PROTO
] = { "stp_proto", BLOBMSG_TYPE_STRING
},
71 static const struct uci_blob_param_info bridge_attr_info
[__BRIDGE_ATTR_MAX
] = {
72 [BRIDGE_ATTR_PORTS
] = { .type
= BLOBMSG_TYPE_STRING
},
75 static const struct uci_blob_param_list bridge_attr_list
= {
76 .n_params
= __BRIDGE_ATTR_MAX
,
77 .params
= bridge_attrs
,
78 .info
= bridge_attr_info
,
81 .next
= { &device_attr_list
},
84 static struct blob_buf b
;
85 static struct device
*bridge_create(const char *name
, struct device_type
*devtype
,
86 struct blob_attr
*attr
);
87 static void bridge_config_init(struct device
*dev
);
88 static void bridge_dev_vlan_update(struct device
*dev
);
89 static void bridge_free(struct device
*dev
);
90 static void bridge_stp_init(struct device
*dev
);
91 static void bridge_dump_info(struct device
*dev
, struct blob_buf
*b
);
92 static enum dev_change_type
93 bridge_reload(struct device
*dev
, struct blob_attr
*attr
);
95 static struct device_type bridge_device_type
= {
97 .config_params
= &bridge_attr_list
,
99 .bridge_capability
= true,
102 .create
= bridge_create
,
103 .config_init
= bridge_config_init
,
104 .vlan_update
= bridge_dev_vlan_update
,
105 .reload
= bridge_reload
,
107 .dump_info
= bridge_dump_info
,
108 .stp_init
= bridge_stp_init
,
111 struct bridge_state
{
113 device_state_cb set_state
;
115 struct blob_attr
*config_data
;
116 struct bridge_config config
;
117 struct blob_attr
*ports
;
122 struct uloop_timeout retry
;
123 struct bridge_member
*primary_port
;
124 struct vlist_tree members
;
129 struct bridge_member
{
130 struct vlist_node node
;
131 struct bridge_state
*bst
;
132 struct device_user dev
;
133 struct uloop_timeout check_timer
;
141 bridge_reset_primary(struct bridge_state
*bst
)
143 struct bridge_member
*bm
;
145 if (!bst
->primary_port
&&
146 (bst
->dev
.settings
.flags
& DEV_OPT_MACADDR
))
149 bst
->primary_port
= NULL
;
150 bst
->dev
.settings
.flags
&= ~DEV_OPT_MACADDR
;
151 vlist_for_each_element(&bst
->members
, bm
, node
) {
157 bst
->primary_port
= bm
;
158 if (bm
->dev
.dev
->settings
.flags
& DEV_OPT_MACADDR
)
159 macaddr
= bm
->dev
.dev
->settings
.macaddr
;
161 macaddr
= bm
->dev
.dev
->orig_settings
.macaddr
;
162 memcpy(bst
->dev
.settings
.macaddr
, macaddr
, 6);
163 bst
->dev
.settings
.flags
|= DEV_OPT_MACADDR
;
168 static struct bridge_vlan_port
*
169 bridge_find_vlan_member_port(struct bridge_member
*bm
, struct bridge_vlan
*vlan
)
171 struct bridge_vlan_hotplug_port
*port
;
172 const char *ifname
= bm
->dev
.dev
->ifname
;
175 for (i
= 0; i
< vlan
->n_ports
; i
++) {
176 if (strcmp(vlan
->ports
[i
].ifname
, ifname
) != 0)
179 return &vlan
->ports
[i
];
182 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
183 if (strcmp(port
->port
.ifname
, ifname
) != 0)
193 bridge_member_vlan_is_pvid(struct bridge_member
*bm
, struct bridge_vlan_port
*port
)
195 return (!bm
->pvid
&& (port
->flags
& BRVLAN_F_UNTAGGED
)) ||
196 (port
->flags
& BRVLAN_F_PVID
);
200 __bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
,
201 struct bridge_vlan_port
*port
, bool add
)
206 if (bm
->pvid
== vlan
->vid
)
207 flags
|= BRVLAN_F_PVID
;
209 system_bridge_vlan(port
->ifname
, vlan
->vid
, -1, add
, flags
);
213 bridge_set_member_vlan(struct bridge_member
*bm
, struct bridge_vlan
*vlan
, bool add
)
215 struct bridge_vlan_port
*port
;
220 port
= bridge_find_vlan_member_port(bm
, vlan
);
224 if (bridge_member_vlan_is_pvid(bm
, port
))
225 bm
->pvid
= vlan
->vid
;
227 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
231 bridge_set_local_vlan(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
233 if (!vlan
->local
&& add
)
236 system_bridge_vlan(bst
->dev
.ifname
, vlan
->vid
, -1, add
, BRVLAN_F_SELF
);
240 bridge_set_local_vlans(struct bridge_state
*bst
, bool add
)
242 struct bridge_vlan
*vlan
;
244 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
245 bridge_set_local_vlan(bst
, vlan
, add
);
248 static struct bridge_vlan
*
249 bridge_recalc_member_pvid(struct bridge_member
*bm
)
251 struct bridge_state
*bst
= bm
->bst
;
252 struct bridge_vlan_port
*port
;
253 struct bridge_vlan
*vlan
, *ret
= NULL
;
255 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
256 port
= bridge_find_vlan_member_port(bm
, vlan
);
260 if (!bridge_member_vlan_is_pvid(bm
, port
))
264 if (port
->flags
& BRVLAN_F_PVID
)
272 bridge_set_vlan_state(struct bridge_state
*bst
, struct bridge_vlan
*vlan
, bool add
)
274 struct bridge_member
*bm
;
275 struct bridge_vlan
*vlan2
;
277 bridge_set_local_vlan(bst
, vlan
, add
);
279 vlist_for_each_element(&bst
->members
, bm
, node
) {
280 struct bridge_vlan_port
*port
;
283 port
= bridge_find_vlan_member_port(bm
, vlan
);
288 if (bridge_member_vlan_is_pvid(bm
, port
))
289 bm
->pvid
= vlan
->vid
;
290 } else if (bm
->pvid
== vlan
->vid
) {
291 vlan2
= bridge_recalc_member_pvid(bm
);
292 if (vlan2
&& vlan2
->vid
!= vlan
->vid
) {
293 bridge_set_member_vlan(bm
, vlan2
, false);
294 bridge_set_member_vlan(bm
, vlan2
, true);
296 new_pvid
= vlan2
? vlan2
->vid
: 0;
302 __bridge_set_member_vlan(bm
, vlan
, port
, add
);
309 bridge_disable_member(struct bridge_member
*bm
, bool keep_dev
)
311 struct bridge_state
*bst
= bm
->bst
;
312 struct bridge_vlan
*vlan
;
314 if (!bm
->present
|| !bm
->active
)
318 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
319 bridge_set_member_vlan(bm
, vlan
, false);
321 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
323 device_release(&bm
->dev
);
325 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
330 static void bridge_stp_notify(struct bridge_state
*bst
)
332 struct bridge_config
*cfg
= &bst
->config
;
334 if (!cfg
->stp
|| cfg
->stp_kernel
)
337 blob_buf_init(&b
, 0);
338 blobmsg_add_string(&b
, "name", bst
->dev
.ifname
);
340 blobmsg_add_string(&b
, "proto", cfg
->stp_proto
);
341 blobmsg_add_u32(&b
, "forward_delay", cfg
->forward_delay
);
342 blobmsg_add_u32(&b
, "hello_time", cfg
->hello_time
);
343 blobmsg_add_u32(&b
, "max_age", cfg
->max_age
);
344 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
)
345 blobmsg_add_u32(&b
, "ageing_time", cfg
->ageing_time
);
346 netifd_ubus_device_notify("stp_init", b
.head
, 1000);
350 bridge_enable_interface(struct bridge_state
*bst
)
357 bridge_stp_notify(bst
);
358 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
362 if (bst
->has_vlans
) {
363 /* delete default VLAN 1 */
364 system_bridge_vlan(bst
->dev
.ifname
, 1, -1, false, BRVLAN_F_SELF
);
366 bridge_set_local_vlans(bst
, true);
374 bridge_stp_init(struct device
*dev
)
376 struct bridge_state
*bst
;
378 bst
= container_of(dev
, struct bridge_state
, dev
);
379 if (!bst
->config
.stp
|| !bst
->active
)
382 bridge_stp_notify(bst
);
383 system_bridge_set_stp_state(&bst
->dev
, false);
384 system_bridge_set_stp_state(&bst
->dev
, true);
388 bridge_disable_interface(struct bridge_state
*bst
)
393 system_bridge_delbr(&bst
->dev
);
398 bridge_member_add_extra_vlans(struct bridge_member
*bm
)
400 struct device
*dev
= bm
->dev
.dev
;
403 for (i
= 0; i
< dev
->n_extra_vlan
; i
++)
404 system_bridge_vlan(dev
->ifname
, dev
->extra_vlan
[i
].start
,
405 dev
->extra_vlan
[i
].end
, true, 0);
409 bridge_enable_member(struct bridge_member
*bm
)
411 struct bridge_state
*bst
= bm
->bst
;
412 struct bridge_vlan
*vlan
;
419 ret
= bridge_enable_interface(bst
);
423 /* Disable IPv6 for bridge members */
424 if (!(bm
->dev
.dev
->settings
.flags
& DEV_OPT_IPV6
)) {
425 bm
->dev
.dev
->settings
.ipv6
= 0;
426 bm
->dev
.dev
->settings
.flags
|= DEV_OPT_IPV6
;
429 ret
= device_claim(&bm
->dev
);
434 if (dev
->settings
.auth
&& !dev
->auth_status
)
440 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
442 D(DEVICE
, "Bridge device %s could not be added\n", bm
->dev
.dev
->ifname
);
447 if (bst
->has_vlans
) {
448 /* delete default VLAN 1 */
449 system_bridge_vlan(bm
->dev
.dev
->ifname
, 1, -1, false, 0);
451 bridge_member_add_extra_vlans(bm
);
452 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
453 bridge_set_member_vlan(bm
, vlan
, true);
456 device_set_present(&bst
->dev
, true);
457 device_broadcast_event(&bst
->dev
, DEV_EVENT_TOPO_CHANGE
);
465 device_release(&bm
->dev
);
471 bridge_remove_member(struct bridge_member
*bm
)
473 struct bridge_state
*bst
= bm
->bst
;
479 bridge_disable_member(bm
, false);
482 bm
->bst
->n_present
--;
484 if (bm
== bst
->primary_port
)
485 bridge_reset_primary(bst
);
487 if (bst
->config
.bridge_empty
)
490 bst
->force_active
= false;
491 if (bst
->n_present
== 0)
492 device_set_present(&bst
->dev
, false);
496 bridge_free_member(struct bridge_member
*bm
)
498 struct bridge_state
*bst
= bm
->bst
;
499 struct device
*dev
= bm
->dev
.dev
;
500 const char *ifname
= dev
->ifname
;
501 struct bridge_vlan
*vlan
;
503 bridge_remove_member(bm
);
506 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
) {
507 struct bridge_vlan_hotplug_port
*port
, *tmp
;
508 bool free_port
= false;
510 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
) {
511 if (strcmp(port
->port
.ifname
, ifname
) != 0)
514 list_del(&port
->list
);
519 if (!free_port
|| !list_empty(&vlan
->hotplug_ports
) ||
520 vlan
->n_ports
|| vlan
->node
.version
!= -1)
523 vlist_delete(&bst
->dev
.vlans
, &vlan
->node
);
527 device_remove_user(&bm
->dev
);
528 uloop_timeout_cancel(&bm
->check_timer
);
531 * When reloading the config and moving a device from one bridge to
532 * another, the other bridge may have tried to claim this device
533 * before it was removed here.
534 * Ensure that claiming the device is retried by toggling its present
538 device_set_present(dev
, false);
539 device_set_present(dev
, true);
546 bridge_check_retry(struct bridge_state
*bst
)
551 uloop_timeout_set(&bst
->retry
, 100);
555 bridge_member_check_cb(struct uloop_timeout
*t
)
557 struct bridge_member
*bm
;
558 struct bridge_state
*bst
;
560 bm
= container_of(t
, struct bridge_member
, check_timer
);
563 if (system_bridge_vlan_check(&bst
->dev
, bm
->dev
.dev
->ifname
) <= 0)
566 bridge_disable_member(bm
, true);
567 bridge_enable_member(bm
);
571 bridge_member_cb(struct device_user
*dep
, enum device_event ev
)
573 struct bridge_member
*bm
= container_of(dep
, struct bridge_member
, dev
);
574 struct bridge_state
*bst
= bm
->bst
;
575 struct device
*dev
= dep
->dev
;
579 assert(!bm
->present
);
584 if (bst
->n_present
== 1)
585 device_set_present(&bst
->dev
, true);
587 case DEV_EVENT_AUTH_UP
:
588 if (!bst
->dev
.active
)
591 if (bridge_enable_member(bm
))
595 * Adding a bridge member can overwrite the bridge mtu
596 * in the kernel, apply the bridge settings in case the
599 system_if_apply_settings(&bst
->dev
, &bst
->dev
.settings
,
600 DEV_OPT_MTU
| DEV_OPT_MTU6
);
602 case DEV_EVENT_LINK_UP
:
604 uloop_timeout_set(&bm
->check_timer
, 1000);
606 case DEV_EVENT_LINK_DOWN
:
607 if (!dev
->settings
.auth
)
610 bridge_disable_member(bm
, true);
612 case DEV_EVENT_REMOVE
:
614 vlist_delete(&bst
->members
, &bm
->node
);
619 bridge_remove_member(bm
);
628 bridge_set_down(struct bridge_state
*bst
)
630 struct bridge_member
*bm
;
632 bst
->set_state(&bst
->dev
, false);
634 vlist_for_each_element(&bst
->members
, bm
, node
)
635 bridge_disable_member(bm
, false);
637 bridge_disable_interface(bst
);
643 bridge_set_up(struct bridge_state
*bst
)
645 struct bridge_member
*bm
;
648 bst
->has_vlans
= !avl_is_empty(&bst
->dev
.vlans
.avl
);
649 if (!bst
->n_present
) {
650 if (!bst
->force_active
)
653 ret
= bridge_enable_interface(bst
);
659 vlist_for_each_element(&bst
->members
, bm
, node
)
660 bridge_enable_member(bm
);
661 bridge_check_retry(bst
);
663 if (!bst
->force_active
&& !bst
->n_present
) {
664 /* initialization of all member interfaces failed */
665 bridge_disable_interface(bst
);
666 device_set_present(&bst
->dev
, false);
670 bridge_reset_primary(bst
);
671 ret
= bst
->set_state(&bst
->dev
, true);
673 bridge_set_down(bst
);
679 bridge_set_state(struct device
*dev
, bool up
)
681 struct bridge_state
*bst
;
683 bst
= container_of(dev
, struct bridge_state
, dev
);
686 return bridge_set_up(bst
);
688 return bridge_set_down(bst
);
691 static struct bridge_member
*
692 bridge_create_member(struct bridge_state
*bst
, const char *name
,
693 struct device
*dev
, bool hotplug
)
695 struct bridge_member
*bm
;
697 bm
= calloc(1, sizeof(*bm
) + strlen(name
) + 1);
702 bm
->dev
.cb
= bridge_member_cb
;
703 bm
->dev
.hotplug
= hotplug
;
704 bm
->check_timer
.cb
= bridge_member_check_cb
;
705 strcpy(bm
->name
, name
);
707 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
709 * Need to look up the bridge member again as the above
710 * created pointer will be freed in case the bridge member
713 bm
= vlist_find(&bst
->members
, name
, bm
, node
);
715 bm
->node
.version
= -1;
721 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
722 struct vlist_node
*node_old
)
724 struct bridge_member
*bm
;
728 bm
= container_of(node_new
, struct bridge_member
, node
);
737 device_add_user(&bm
->dev
, dev
);
742 bm
= container_of(node_old
, struct bridge_member
, node
);
743 bridge_free_member(bm
);
749 bridge_add_member(struct bridge_state
*bst
, const char *name
)
753 dev
= device_get(name
, true);
757 bridge_create_member(bst
, name
, dev
, false);
760 static struct bridge_vlan
*
761 bridge_hotplug_get_vlan(struct bridge_state
*bst
, uint16_t vid
)
763 struct bridge_vlan
*vlan
;
765 vlan
= vlist_find(&bst
->dev
.vlans
, &vid
, vlan
, node
);
769 vlan
= calloc(1, sizeof(*vlan
));
772 INIT_LIST_HEAD(&vlan
->hotplug_ports
);
773 vlist_add(&bst
->dev
.vlans
, &vlan
->node
, &vlan
->vid
);
774 vlan
->node
.version
= -1;
779 static struct bridge_vlan_hotplug_port
*
780 bridge_hotplug_get_vlan_port(struct bridge_vlan
*vlan
, const char *ifname
)
782 struct bridge_vlan_hotplug_port
*port
;
784 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
785 if (!strcmp(port
->port
.ifname
, ifname
))
792 bridge_hotplug_set_member_vlans(struct bridge_state
*bst
, struct blob_attr
*vlans
,
793 const char *ifname
, struct bridge_member
*bm
, bool add
)
795 struct bridge_vlan
*vlan
;
796 struct blob_attr
*cur
;
802 blobmsg_for_each_attr(cur
, vlans
, rem
) {
803 struct bridge_vlan_hotplug_port
*port
;
809 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
812 vid
= strtoul(blobmsg_get_string(cur
), &end
, 0);
813 if (!vid
|| vid
> 4095)
816 vlan
= bridge_hotplug_get_vlan(bst
, vid
);
821 vlan
->pending
= false;
822 bridge_set_vlan_state(bst
, vlan
, true);
829 for (end
++; *end
; end
++) {
832 flags
|= BRVLAN_F_UNTAGGED
;
835 flags
|= BRVLAN_F_PVID
;
841 port
= bridge_hotplug_get_vlan_port(vlan
, ifname
);
846 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, false);
847 list_del(&port
->list
);
853 if (port
->port
.flags
== flags
)
856 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, false);
857 port
->port
.flags
= flags
;
858 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, true);
862 port
= calloc_a(sizeof(*port
), &name_buf
, strlen(ifname
) + 1);
866 port
->port
.flags
= flags
;
867 port
->port
.ifname
= strcpy(name_buf
, ifname
);
868 list_add_tail(&port
->list
, &vlan
->hotplug_ports
);
873 __bridge_set_member_vlan(bm
, vlan
, &port
->port
, true);
878 bridge_hotplug_add(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
880 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
881 struct bridge_member
*bm
;
883 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
884 bridge_hotplug_set_member_vlans(bst
, vlan
, member
->ifname
, bm
, true);
886 bridge_create_member(bst
, member
->ifname
, member
, true);
892 bridge_hotplug_del(struct device
*dev
, struct device
*member
, struct blob_attr
*vlan
)
894 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
895 struct bridge_member
*bm
;
897 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
899 return UBUS_STATUS_NOT_FOUND
;
901 bridge_hotplug_set_member_vlans(bst
, vlan
, member
->ifname
, bm
, false);
902 if (!bm
->dev
.hotplug
)
905 vlist_delete(&bst
->members
, &bm
->node
);
910 bridge_hotplug_prepare(struct device
*dev
, struct device
**bridge_dev
)
912 struct bridge_state
*bst
;
917 bst
= container_of(dev
, struct bridge_state
, dev
);
918 bst
->force_active
= true;
919 device_set_present(&bst
->dev
, true);
924 static const struct device_hotplug_ops bridge_ops
= {
925 .prepare
= bridge_hotplug_prepare
,
926 .add
= bridge_hotplug_add
,
927 .del
= bridge_hotplug_del
931 bridge_free(struct device
*dev
)
933 struct bridge_state
*bst
;
935 bst
= container_of(dev
, struct bridge_state
, dev
);
936 vlist_flush_all(&bst
->members
);
937 vlist_flush_all(&dev
->vlans
);
938 kvlist_free(&dev
->vlan_aliases
);
939 free(bst
->config_data
);
944 bridge_dump_port(struct blob_buf
*b
, struct bridge_vlan_port
*port
)
946 bool tagged
= !(port
->flags
& BRVLAN_F_UNTAGGED
);
947 bool pvid
= (port
->flags
& BRVLAN_F_PVID
);
949 blobmsg_printf(b
, NULL
, "%s%s%s%s", port
->ifname
,
950 tagged
|| pvid
? ":" : "",
956 bridge_dump_vlan(struct blob_buf
*b
, struct bridge_vlan
*vlan
)
958 struct bridge_vlan_hotplug_port
*port
;
962 c
= blobmsg_open_table(b
, NULL
);
964 blobmsg_add_u32(b
, "id", vlan
->vid
);
965 blobmsg_add_u8(b
, "local", vlan
->local
);
967 p
= blobmsg_open_array(b
, "ports");
969 for (i
= 0; i
< vlan
->n_ports
; i
++)
970 bridge_dump_port(b
, &vlan
->ports
[i
]);
972 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
973 bridge_dump_port(b
, &port
->port
);
975 blobmsg_close_array(b
, p
);
977 blobmsg_close_table(b
, c
);
981 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
983 struct bridge_config
*cfg
;
984 struct bridge_state
*bst
;
985 struct bridge_member
*bm
;
986 struct bridge_vlan
*vlan
;
990 bst
= container_of(dev
, struct bridge_state
, dev
);
993 system_if_dump_info(dev
, b
);
994 list
= blobmsg_open_array(b
, "bridge-members");
996 vlist_for_each_element(&bst
->members
, bm
, node
) {
997 if (bm
->dev
.dev
->hidden
)
1000 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
1003 blobmsg_close_array(b
, list
);
1005 c
= blobmsg_open_table(b
, "bridge-attributes");
1007 blobmsg_add_u8(b
, "stp", cfg
->stp
);
1008 blobmsg_add_u32(b
, "forward_delay", cfg
->forward_delay
);
1009 blobmsg_add_u32(b
, "priority", cfg
->priority
);
1010 blobmsg_add_u32(b
, "ageing_time", cfg
->ageing_time
);
1011 blobmsg_add_u32(b
, "hello_time", cfg
->hello_time
);
1012 blobmsg_add_u32(b
, "max_age", cfg
->max_age
);
1013 blobmsg_add_u8(b
, "igmp_snooping", cfg
->igmp_snoop
);
1014 blobmsg_add_u8(b
, "bridge_empty", cfg
->bridge_empty
);
1015 blobmsg_add_u8(b
, "multicast_querier", cfg
->multicast_querier
);
1016 blobmsg_add_u32(b
, "hash_max", cfg
->hash_max
);
1017 blobmsg_add_u32(b
, "robustness", cfg
->robustness
);
1018 blobmsg_add_u32(b
, "query_interval", cfg
->query_interval
);
1019 blobmsg_add_u32(b
, "query_response_interval", cfg
->query_response_interval
);
1020 blobmsg_add_u32(b
, "last_member_interval", cfg
->last_member_interval
);
1021 blobmsg_add_u8(b
, "vlan_filtering", cfg
->vlan_filtering
);
1022 blobmsg_add_u8(b
, "stp_kernel", cfg
->stp_kernel
);
1024 blobmsg_add_string(b
, "stp_proto", cfg
->stp_proto
);
1026 blobmsg_close_table(b
, c
);
1028 if (avl_is_empty(&dev
->vlans
.avl
))
1031 list
= blobmsg_open_array(b
, "bridge-vlans");
1033 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
1034 bridge_dump_vlan(b
, vlan
);
1036 blobmsg_close_array(b
, list
);
1040 bridge_config_init(struct device
*dev
)
1042 struct bridge_state
*bst
;
1043 struct bridge_vlan
*vlan
;
1044 struct blob_attr
*cur
;
1048 bst
= container_of(dev
, struct bridge_state
, dev
);
1050 if (bst
->config
.bridge_empty
) {
1051 bst
->force_active
= true;
1052 device_set_present(&bst
->dev
, true);
1056 vlist_update(&bst
->members
);
1058 blobmsg_for_each_attr(cur
, bst
->ports
, rem
) {
1059 bridge_add_member(bst
, blobmsg_data(cur
));
1063 vlist_for_each_element(&bst
->dev
.vlans
, vlan
, node
)
1064 for (i
= 0; i
< vlan
->n_ports
; i
++)
1065 bridge_add_member(bst
, vlan
->ports
[i
].ifname
);
1067 vlist_flush(&bst
->members
);
1068 bridge_check_retry(bst
);
1072 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
1074 struct bridge_config
*cfg
= &bst
->config
;
1075 struct blob_attr
*cur
;
1078 memset(cfg
, 0, sizeof(*cfg
));
1080 cfg
->stp_kernel
= false;
1081 cfg
->robustness
= 2;
1082 cfg
->igmp_snoop
= false;
1083 cfg
->multicast_querier
= false;
1084 cfg
->query_interval
= 12500;
1085 cfg
->query_response_interval
= 1000;
1086 cfg
->last_member_interval
= 100;
1087 cfg
->hash_max
= 512;
1088 cfg
->bridge_empty
= false;
1089 cfg
->priority
= 0x7FFF;
1090 cfg
->vlan_filtering
= false;
1092 cfg
->forward_delay
= 8;
1094 cfg
->hello_time
= 1;
1096 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
1097 cfg
->stp
= blobmsg_get_bool(cur
);
1099 if ((cur
= tb
[BRIDGE_ATTR_STP_KERNEL
]))
1100 cfg
->stp
= blobmsg_get_bool(cur
);
1102 if ((cur
= tb
[BRIDGE_ATTR_STP_PROTO
]))
1103 cfg
->stp_proto
= blobmsg_get_string(cur
);
1105 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
1106 cfg
->forward_delay
= blobmsg_get_u32(cur
);
1108 if ((cur
= tb
[BRIDGE_ATTR_PRIORITY
]))
1109 cfg
->priority
= blobmsg_get_u32(cur
);
1111 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
1112 cfg
->multicast_querier
= cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
1114 if ((cur
= tb
[BRIDGE_ATTR_MULTICAST_QUERIER
]))
1115 cfg
->multicast_querier
= blobmsg_get_bool(cur
);
1117 if ((cur
= tb
[BRIDGE_ATTR_HASH_MAX
]))
1118 cfg
->hash_max
= blobmsg_get_u32(cur
);
1120 if ((cur
= tb
[BRIDGE_ATTR_ROBUSTNESS
])) {
1121 cfg
->robustness
= blobmsg_get_u32(cur
);
1122 cfg
->flags
|= BRIDGE_OPT_ROBUSTNESS
;
1125 if ((cur
= tb
[BRIDGE_ATTR_QUERY_INTERVAL
])) {
1126 cfg
->query_interval
= blobmsg_get_u32(cur
);
1127 cfg
->flags
|= BRIDGE_OPT_QUERY_INTERVAL
;
1130 if ((cur
= tb
[BRIDGE_ATTR_QUERY_RESPONSE_INTERVAL
])) {
1131 cfg
->query_response_interval
= blobmsg_get_u32(cur
);
1132 cfg
->flags
|= BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
;
1135 if ((cur
= tb
[BRIDGE_ATTR_LAST_MEMBER_INTERVAL
])) {
1136 cfg
->last_member_interval
= blobmsg_get_u32(cur
);
1137 cfg
->flags
|= BRIDGE_OPT_LAST_MEMBER_INTERVAL
;
1140 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
1141 cfg
->ageing_time
= blobmsg_get_u32(cur
);
1142 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
1145 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
]))
1146 cfg
->hello_time
= blobmsg_get_u32(cur
);
1148 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
]))
1149 cfg
->max_age
= blobmsg_get_u32(cur
);
1151 if ((cur
= tb
[BRIDGE_ATTR_BRIDGE_EMPTY
]))
1152 cfg
->bridge_empty
= blobmsg_get_bool(cur
);
1154 if ((cur
= tb
[BRIDGE_ATTR_VLAN_FILTERING
]))
1155 cfg
->vlan_filtering
= blobmsg_get_bool(cur
);
1158 static enum dev_change_type
1159 bridge_reload(struct device
*dev
, struct blob_attr
*attr
)
1161 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
1162 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
1163 enum dev_change_type ret
= DEV_CONFIG_APPLIED
;
1165 struct bridge_state
*bst
;
1167 BUILD_BUG_ON(sizeof(diff
) < __BRIDGE_ATTR_MAX
/ 8);
1168 BUILD_BUG_ON(sizeof(diff
) < __DEV_ATTR_MAX
/ 8);
1170 bst
= container_of(dev
, struct bridge_state
, dev
);
1171 attr
= blob_memdup(attr
);
1173 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
1174 blob_data(attr
), blob_len(attr
));
1175 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
1176 blob_data(attr
), blob_len(attr
));
1178 if (tb_dev
[DEV_ATTR_MACADDR
])
1179 bst
->primary_port
= NULL
;
1181 bst
->ports
= tb_br
[BRIDGE_ATTR_PORTS
];
1182 device_init_settings(dev
, tb_dev
);
1183 bridge_apply_settings(bst
, tb_br
);
1185 if (bst
->config_data
) {
1186 struct blob_attr
*otb_dev
[__DEV_ATTR_MAX
];
1187 struct blob_attr
*otb_br
[__BRIDGE_ATTR_MAX
];
1189 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, otb_dev
,
1190 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1193 uci_blob_diff(tb_dev
, otb_dev
, &device_attr_list
, &diff
);
1195 ret
= DEV_CONFIG_RESTART
;
1196 D(DEVICE
, "Bridge %s device attributes have changed, diff=0x%lx\n",
1200 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, otb_br
,
1201 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
1204 uci_blob_diff(tb_br
, otb_br
, &bridge_attr_list
, &diff
);
1205 if (diff
& ~(1 << BRIDGE_ATTR_PORTS
)) {
1206 ret
= DEV_CONFIG_RESTART
;
1207 D(DEVICE
, "Bridge %s attributes have changed, diff=0x%lx\n",
1211 bridge_config_init(dev
);
1214 free(bst
->config_data
);
1215 bst
->config_data
= attr
;
1220 bridge_retry_members(struct uloop_timeout
*timeout
)
1222 struct bridge_state
*bst
= container_of(timeout
, struct bridge_state
, retry
);
1223 struct bridge_member
*bm
;
1226 vlist_for_each_element(&bst
->members
, bm
, node
) {
1230 if (!bm
->dev
.dev
->present
)
1235 bridge_enable_member(bm
);
1239 static int bridge_avl_cmp_u16(const void *k1
, const void *k2
, void *ptr
)
1241 const uint16_t *i1
= k1
, *i2
= k2
;
1247 bridge_vlan_equal(struct bridge_vlan
*v1
, struct bridge_vlan
*v2
)
1251 if (v1
->n_ports
!= v2
->n_ports
)
1254 for (i
= 0; i
< v1
->n_ports
; i
++)
1255 if (v1
->ports
[i
].flags
!= v2
->ports
[i
].flags
||
1256 strcmp(v1
->ports
[i
].ifname
, v2
->ports
[i
].ifname
) != 0)
1263 bridge_vlan_free(struct bridge_vlan
*vlan
)
1265 struct bridge_vlan_hotplug_port
*port
, *tmp
;
1270 list_for_each_entry_safe(port
, tmp
, &vlan
->hotplug_ports
, list
)
1277 bridge_vlan_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
1278 struct vlist_node
*node_old
)
1280 struct bridge_state
*bst
= container_of(tree
, struct bridge_state
, dev
.vlans
);
1281 struct bridge_vlan
*vlan_new
= NULL
, *vlan_old
= NULL
;
1283 if (!bst
->has_vlans
|| !bst
->active
)
1287 vlan_old
= container_of(node_old
, struct bridge_vlan
, node
);
1289 vlan_new
= container_of(node_new
, struct bridge_vlan
, node
);
1291 if (node_new
&& node_old
&& bridge_vlan_equal(vlan_old
, vlan_new
)) {
1292 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1297 bridge_set_vlan_state(bst
, vlan_old
, false);
1299 if (node_old
&& node_new
)
1300 list_splice_init(&vlan_old
->hotplug_ports
, &vlan_new
->hotplug_ports
);
1303 vlan_new
->pending
= true;
1305 bst
->dev
.config_pending
= true;
1308 bridge_vlan_free(vlan_old
);
1312 bridge_dev_vlan_update(struct device
*dev
)
1314 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
1315 struct bridge_vlan
*vlan
;
1317 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
1321 vlan
->pending
= false;
1322 bridge_set_vlan_state(bst
, vlan
, true);
1326 static struct device
*
1327 bridge_create(const char *name
, struct device_type
*devtype
,
1328 struct blob_attr
*attr
)
1330 struct bridge_state
*bst
;
1331 struct device
*dev
= NULL
;
1333 bst
= calloc(1, sizeof(*bst
));
1339 if (device_init(dev
, devtype
, name
) < 0) {
1340 device_cleanup(dev
);
1345 dev
->config_pending
= true;
1346 bst
->retry
.cb
= bridge_retry_members
;
1348 bst
->set_state
= dev
->set_state
;
1349 dev
->set_state
= bridge_set_state
;
1351 dev
->hotplug_ops
= &bridge_ops
;
1353 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
1354 bst
->members
.keep_old
= true;
1356 vlist_init(&dev
->vlans
, bridge_avl_cmp_u16
, bridge_vlan_update
);
1358 bridge_reload(dev
, attr
);
1363 static void __init
bridge_device_type_init(void)
1365 device_type_add(&bridge_device_type
);