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 const struct device_type bridge_device_type
= {
53 .config_params
= &bridge_attr_list
,
55 .create
= bridge_create
,
56 .config_init
= bridge_config_init
,
58 .dump_info
= bridge_dump_info
,
63 device_state_cb set_state
;
65 struct bridge_config config
;
66 struct blob_attr
*ifnames
;
70 struct vlist_tree members
;
74 struct bridge_member
{
75 struct vlist_node node
;
76 struct bridge_state
*bst
;
77 struct device_user dev
;
82 bridge_disable_member(struct bridge_member
*bm
)
84 struct bridge_state
*bst
= bm
->bst
;
89 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
90 device_release(&bm
->dev
);
96 bridge_enable_member(struct bridge_member
*bm
)
98 struct bridge_state
*bst
= bm
->bst
;
104 ret
= device_claim(&bm
->dev
);
108 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
121 bridge_remove_member(struct bridge_member
*bm
)
123 struct bridge_state
*bst
= bm
->bst
;
129 bm
->bst
->n_present
--;
131 bridge_disable_member(bm
);
133 bst
->force_active
= false;
134 if (bst
->n_present
== 0)
135 device_set_present(&bst
->dev
, false);
139 bridge_member_cb(struct device_user
*dev
, enum device_event ev
)
141 struct bridge_member
*bm
= container_of(dev
, struct bridge_member
, dev
);
142 struct bridge_state
*bst
= bm
->bst
;
146 assert(!bm
->present
);
152 bridge_enable_member(bm
);
153 else if (bst
->n_present
== 1)
154 device_set_present(&bst
->dev
, true);
157 case DEV_EVENT_REMOVE
:
162 vlist_delete(&bst
->members
, &bm
->node
);
164 bridge_remove_member(bm
);
173 bridge_set_down(struct bridge_state
*bst
)
175 struct bridge_member
*bm
;
177 bst
->set_state(&bst
->dev
, false);
179 vlist_for_each_element(&bst
->members
, bm
, node
)
180 bridge_disable_member(bm
);
182 system_bridge_delbr(&bst
->dev
);
188 bridge_set_up(struct bridge_state
*bst
)
190 struct bridge_member
*bm
;
193 if (!bst
->force_active
&& !bst
->n_present
)
196 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
200 vlist_for_each_element(&bst
->members
, bm
, node
)
201 bridge_enable_member(bm
);
203 if (!bst
->force_active
&& !bst
->n_present
) {
204 /* initialization of all member interfaces failed */
205 system_bridge_delbr(&bst
->dev
);
206 device_set_present(&bst
->dev
, false);
210 ret
= bst
->set_state(&bst
->dev
, true);
212 bridge_set_down(bst
);
219 bridge_set_state(struct device
*dev
, bool up
)
221 struct bridge_state
*bst
;
223 bst
= container_of(dev
, struct bridge_state
, dev
);
226 return bridge_set_up(bst
);
228 return bridge_set_down(bst
);
231 static struct bridge_member
*
232 bridge_create_member(struct bridge_state
*bst
, struct device
*dev
, bool hotplug
)
234 struct bridge_member
*bm
;
237 bm
= calloc(1, sizeof(*bm
) + strlen(dev
->ifname
) + 1);
239 bm
->dev
.cb
= bridge_member_cb
;
240 bm
->dev
.hotplug
= hotplug
;
241 name
= (char *) (bm
+ 1);
242 strcpy(name
, dev
->ifname
);
243 vlist_add(&bst
->members
, &bm
->node
, name
);
245 device_add_user(&bm
->dev
, dev
);
251 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
252 struct vlist_node
*node_old
)
254 struct bridge_member
*bm
;
256 if (node_new
&& node_old
)
260 bm
= container_of(node_old
, struct bridge_member
, node
);
261 bridge_remove_member(bm
);
262 device_remove_user(&bm
->dev
);
267 bm
= container_of(node_new
, struct bridge_member
, node
);
273 bridge_add_member(struct bridge_state
*bst
, const char *name
)
277 dev
= device_get(name
, true);
281 bridge_create_member(bst
, dev
, false);
285 bridge_hotplug_add(struct device
*dev
, struct device
*member
)
287 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
289 bridge_create_member(bst
, member
, true);
295 bridge_hotplug_del(struct device
*dev
, struct device
*member
)
297 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
298 struct bridge_member
*bm
;
300 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
302 return UBUS_STATUS_NOT_FOUND
;
304 vlist_delete(&bst
->members
, &bm
->node
);
309 bridge_hotplug_prepare(struct device
*dev
)
311 struct bridge_state
*bst
;
313 bst
= container_of(dev
, struct bridge_state
, dev
);
314 bst
->force_active
= true;
315 device_set_present(&bst
->dev
, true);
320 static const struct device_hotplug_ops bridge_ops
= {
321 .prepare
= bridge_hotplug_prepare
,
322 .add
= bridge_hotplug_add
,
323 .del
= bridge_hotplug_del
327 bridge_free(struct device
*dev
)
329 struct bridge_state
*bst
;
332 bst
= container_of(dev
, struct bridge_state
, dev
);
333 vlist_flush_all(&bst
->members
);
338 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
340 struct bridge_state
*bst
;
341 struct bridge_member
*bm
;
344 bst
= container_of(dev
, struct bridge_state
, dev
);
346 system_if_dump_info(dev
, b
);
347 list
= blobmsg_open_array(b
, "bridge-members");
349 vlist_for_each_element(&bst
->members
, bm
, node
)
350 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
352 blobmsg_close_array(b
, list
);
356 bridge_config_init(struct device
*dev
)
358 struct bridge_state
*bst
;
359 struct blob_attr
*cur
;
362 bst
= container_of(dev
, struct bridge_state
, dev
);
367 blobmsg_for_each_attr(cur
, bst
->ifnames
, rem
) {
368 bridge_add_member(bst
, blobmsg_data(cur
));
373 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
375 struct bridge_config
*cfg
= &bst
->config
;
376 struct blob_attr
*cur
;
380 cfg
->forward_delay
= 1;
381 cfg
->igmp_snoop
= true;
383 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
384 cfg
->stp
= blobmsg_get_bool(cur
);
386 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
387 cfg
->forward_delay
= blobmsg_get_u32(cur
);
389 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
390 cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
392 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
393 cfg
->ageing_time
= blobmsg_get_u32(cur
);
394 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
397 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
398 cfg
->hello_time
= blobmsg_get_u32(cur
);
399 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
402 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
403 cfg
->max_age
= blobmsg_get_u32(cur
);
404 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
408 static struct device
*
409 bridge_create(const char *name
, struct blob_attr
*attr
)
411 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
412 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
413 struct bridge_state
*bst
;
414 struct device
*dev
= NULL
;
416 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
417 blob_data(attr
), blob_len(attr
));
418 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
419 blob_data(attr
), blob_len(attr
));
421 bst
= calloc(1, sizeof(*bst
));
426 device_init(dev
, &bridge_device_type
, name
);
427 device_init_settings(dev
, tb_dev
);
428 dev
->config_pending
= true;
429 bst
->ifnames
= tb_br
[BRIDGE_ATTR_IFNAME
];
430 bridge_apply_settings(bst
, tb_br
);
432 bst
->set_state
= dev
->set_state
;
433 dev
->set_state
= bridge_set_state
;
435 dev
->hotplug_ops
= &bridge_ops
;
437 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);