15 BRIDGE_ATTR_FORWARD_DELAY
,
16 BRIDGE_ATTR_IGMP_SNOOP
,
17 BRIDGE_ATTR_AGEING_TIME
,
18 BRIDGE_ATTR_HELLO_TIME
,
23 static const struct blobmsg_policy bridge_attrs
[__BRIDGE_ATTR_MAX
] = {
24 [BRIDGE_ATTR_IFNAME
] = { "ifname", BLOBMSG_TYPE_ARRAY
},
25 [BRIDGE_ATTR_STP
] = { "stp", BLOBMSG_TYPE_BOOL
},
26 [BRIDGE_ATTR_FORWARD_DELAY
] = { "forward_delay", BLOBMSG_TYPE_INT32
},
27 [BRIDGE_ATTR_AGEING_TIME
] = { "ageing_time", BLOBMSG_TYPE_INT32
},
28 [BRIDGE_ATTR_HELLO_TIME
] = { "hello_time", BLOBMSG_TYPE_INT32
},
29 [BRIDGE_ATTR_MAX_AGE
] = { "max_age", BLOBMSG_TYPE_INT32
},
30 [BRIDGE_ATTR_IGMP_SNOOP
] = { "igmp_snooping", BLOBMSG_TYPE_BOOL
},
33 static const union config_param_info bridge_attr_info
[__BRIDGE_ATTR_MAX
] = {
34 [BRIDGE_ATTR_IFNAME
] = { .type
= BLOBMSG_TYPE_STRING
},
37 static const struct config_param_list bridge_attr_list
= {
38 .n_params
= __BRIDGE_ATTR_MAX
,
39 .params
= bridge_attrs
,
40 .info
= bridge_attr_info
,
43 .next
= { &device_attr_list
},
46 static struct device
*bridge_create(const char *name
, struct blob_attr
*attr
);
47 static void bridge_config_init(struct device
*dev
);
48 static void bridge_free(struct device
*dev
);
49 static void bridge_dump_info(struct device
*dev
, struct blob_buf
*b
);
51 bridge_reload(struct device
*dev
, struct blob_attr
*attr
);
53 const struct device_type bridge_device_type
= {
55 .config_params
= &bridge_attr_list
,
57 .create
= bridge_create
,
58 .config_init
= bridge_config_init
,
59 .reload
= bridge_reload
,
61 .dump_info
= bridge_dump_info
,
66 device_state_cb set_state
;
68 struct blob_attr
*config_data
;
69 struct bridge_config config
;
70 struct blob_attr
*ifnames
;
74 struct vlist_tree members
;
78 struct bridge_member
{
79 struct vlist_node node
;
80 struct bridge_state
*bst
;
81 struct device_user dev
;
87 bridge_disable_member(struct bridge_member
*bm
)
89 struct bridge_state
*bst
= bm
->bst
;
94 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
95 device_release(&bm
->dev
);
101 bridge_enable_member(struct bridge_member
*bm
)
103 struct bridge_state
*bst
= bm
->bst
;
109 ret
= device_claim(&bm
->dev
);
113 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
115 D(DEVICE
, "Bridge device %s could not be added\n", bm
->dev
.dev
->ifname
);
128 bridge_remove_member(struct bridge_member
*bm
)
130 struct bridge_state
*bst
= bm
->bst
;
136 bridge_disable_member(bm
);
139 bm
->bst
->n_present
--;
141 bst
->force_active
= false;
142 if (bst
->n_present
== 0)
143 device_set_present(&bst
->dev
, false);
147 bridge_member_cb(struct device_user
*dev
, enum device_event ev
)
149 struct bridge_member
*bm
= container_of(dev
, struct bridge_member
, dev
);
150 struct bridge_state
*bst
= bm
->bst
;
154 assert(!bm
->present
);
160 bridge_enable_member(bm
);
161 else if (bst
->n_present
== 1)
162 device_set_present(&bst
->dev
, true);
165 case DEV_EVENT_REMOVE
:
167 vlist_delete(&bst
->members
, &bm
->node
);
172 bridge_remove_member(bm
);
181 bridge_set_down(struct bridge_state
*bst
)
183 struct bridge_member
*bm
;
185 bst
->set_state(&bst
->dev
, false);
187 vlist_for_each_element(&bst
->members
, bm
, node
)
188 bridge_disable_member(bm
);
190 system_bridge_delbr(&bst
->dev
);
196 bridge_set_up(struct bridge_state
*bst
)
198 struct bridge_member
*bm
;
201 if (!bst
->force_active
&& !bst
->n_present
)
204 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
208 vlist_for_each_element(&bst
->members
, bm
, node
)
209 bridge_enable_member(bm
);
211 if (!bst
->force_active
&& !bst
->n_present
) {
212 /* initialization of all member interfaces failed */
213 system_bridge_delbr(&bst
->dev
);
214 device_set_present(&bst
->dev
, false);
218 ret
= bst
->set_state(&bst
->dev
, true);
220 bridge_set_down(bst
);
227 bridge_set_state(struct device
*dev
, bool up
)
229 struct bridge_state
*bst
;
231 bst
= container_of(dev
, struct bridge_state
, dev
);
234 return bridge_set_up(bst
);
236 return bridge_set_down(bst
);
239 static struct bridge_member
*
240 bridge_create_member(struct bridge_state
*bst
, struct device
*dev
, bool hotplug
)
242 struct bridge_member
*bm
;
244 bm
= calloc(1, sizeof(*bm
) + strlen(dev
->ifname
) + 1);
246 bm
->dev
.cb
= bridge_member_cb
;
247 bm
->dev
.hotplug
= hotplug
;
248 strcpy(bm
->name
, dev
->ifname
);
250 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
252 bm
->node
.version
= -1;
258 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
259 struct vlist_node
*node_old
)
261 struct bridge_member
*bm
;
265 bm
= container_of(node_new
, struct bridge_member
, node
);
274 device_add_user(&bm
->dev
, dev
);
279 bm
= container_of(node_old
, struct bridge_member
, node
);
280 bridge_remove_member(bm
);
281 device_remove_user(&bm
->dev
);
288 bridge_add_member(struct bridge_state
*bst
, const char *name
)
292 dev
= device_get(name
, true);
296 bridge_create_member(bst
, dev
, false);
300 bridge_hotplug_add(struct device
*dev
, struct device
*member
)
302 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
304 bridge_create_member(bst
, member
, true);
310 bridge_hotplug_del(struct device
*dev
, struct device
*member
)
312 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
313 struct bridge_member
*bm
;
315 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
317 return UBUS_STATUS_NOT_FOUND
;
319 vlist_delete(&bst
->members
, &bm
->node
);
324 bridge_hotplug_prepare(struct device
*dev
)
326 struct bridge_state
*bst
;
328 bst
= container_of(dev
, struct bridge_state
, dev
);
329 bst
->force_active
= true;
330 device_set_present(&bst
->dev
, true);
335 static const struct device_hotplug_ops bridge_ops
= {
336 .prepare
= bridge_hotplug_prepare
,
337 .add
= bridge_hotplug_add
,
338 .del
= bridge_hotplug_del
342 bridge_free(struct device
*dev
)
344 struct bridge_state
*bst
;
347 bst
= container_of(dev
, struct bridge_state
, dev
);
348 vlist_flush_all(&bst
->members
);
353 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
355 struct bridge_state
*bst
;
356 struct bridge_member
*bm
;
359 bst
= container_of(dev
, struct bridge_state
, dev
);
361 system_if_dump_info(dev
, b
);
362 list
= blobmsg_open_array(b
, "bridge-members");
364 vlist_for_each_element(&bst
->members
, bm
, node
)
365 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
367 blobmsg_close_array(b
, list
);
371 bridge_config_init(struct device
*dev
)
373 struct bridge_state
*bst
;
374 struct blob_attr
*cur
;
377 bst
= container_of(dev
, struct bridge_state
, dev
);
382 vlist_update(&bst
->members
);
383 blobmsg_for_each_attr(cur
, bst
->ifnames
, rem
) {
384 bridge_add_member(bst
, blobmsg_data(cur
));
386 vlist_flush(&bst
->members
);
390 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
392 struct bridge_config
*cfg
= &bst
->config
;
393 struct blob_attr
*cur
;
397 cfg
->forward_delay
= 2;
398 cfg
->igmp_snoop
= true;
400 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
401 cfg
->stp
= blobmsg_get_bool(cur
);
403 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
404 cfg
->forward_delay
= blobmsg_get_u32(cur
);
406 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
407 cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
409 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
410 cfg
->ageing_time
= blobmsg_get_u32(cur
);
411 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
414 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
415 cfg
->hello_time
= blobmsg_get_u32(cur
);
416 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
419 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
420 cfg
->max_age
= blobmsg_get_u32(cur
);
421 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
426 bridge_reload(struct device
*dev
, struct blob_attr
*attr
)
428 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
429 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
430 enum dev_change_type ret
= DEV_CONFIG_APPLIED
;
432 struct bridge_state
*bst
;
434 BUILD_BUG_ON(sizeof(diff
) < __BRIDGE_ATTR_MAX
/ 8);
435 BUILD_BUG_ON(sizeof(diff
) < __DEV_ATTR_MAX
/ 8);
437 bst
= container_of(dev
, struct bridge_state
, dev
);
439 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
440 blob_data(attr
), blob_len(attr
));
441 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
442 blob_data(attr
), blob_len(attr
));
444 bst
->ifnames
= tb_br
[BRIDGE_ATTR_IFNAME
];
445 device_init_settings(dev
, tb_dev
);
446 bridge_apply_settings(bst
, tb_br
);
448 if (bst
->config_data
) {
449 struct blob_attr
*otb_dev
[__DEV_ATTR_MAX
];
450 struct blob_attr
*otb_br
[__BRIDGE_ATTR_MAX
];
452 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, otb_dev
,
453 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
456 config_diff(tb_dev
, otb_dev
, &device_attr_list
, &diff
);
457 if (diff
& ~(1 << DEV_ATTR_IFNAME
))
458 ret
= DEV_CONFIG_RESTART
;
460 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, otb_br
,
461 blob_data(bst
->config_data
), blob_len(bst
->config_data
));
464 config_diff(tb_br
, otb_br
, &bridge_attr_list
, &diff
);
465 if (diff
& ~(1 << BRIDGE_ATTR_IFNAME
))
466 ret
= DEV_CONFIG_RESTART
;
468 bridge_config_init(dev
);
471 bst
->config_data
= attr
;
475 static struct device
*
476 bridge_create(const char *name
, struct blob_attr
*attr
)
478 struct bridge_state
*bst
;
479 struct device
*dev
= NULL
;
481 bst
= calloc(1, sizeof(*bst
));
486 device_init(dev
, &bridge_device_type
, name
);
487 dev
->config_pending
= true;
489 bst
->set_state
= dev
->set_state
;
490 dev
->set_state
= bridge_set_state
;
492 dev
->hotplug_ops
= &bridge_ops
;
494 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
495 bst
->members
.keep_old
= true;
496 bridge_reload(dev
, attr
);