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
;
83 bridge_disable_member(struct bridge_member
*bm
)
85 struct bridge_state
*bst
= bm
->bst
;
90 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
91 device_release(&bm
->dev
);
97 bridge_enable_member(struct bridge_member
*bm
)
99 struct bridge_state
*bst
= bm
->bst
;
105 ret
= device_claim(&bm
->dev
);
109 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
111 D(DEVICE
, "Bridge device %s could not be added\n", bm
->dev
.dev
->ifname
);
124 bridge_remove_member(struct bridge_member
*bm
)
126 struct bridge_state
*bst
= bm
->bst
;
132 bm
->bst
->n_present
--;
134 bridge_disable_member(bm
);
136 bst
->force_active
= false;
137 if (bst
->n_present
== 0)
138 device_set_present(&bst
->dev
, false);
142 bridge_member_cb(struct device_user
*dev
, enum device_event ev
)
144 struct bridge_member
*bm
= container_of(dev
, struct bridge_member
, dev
);
145 struct bridge_state
*bst
= bm
->bst
;
149 assert(!bm
->present
);
155 bridge_enable_member(bm
);
156 else if (bst
->n_present
== 1)
157 device_set_present(&bst
->dev
, true);
160 case DEV_EVENT_REMOVE
:
162 vlist_delete(&bst
->members
, &bm
->node
);
167 bridge_remove_member(bm
);
176 bridge_set_down(struct bridge_state
*bst
)
178 struct bridge_member
*bm
;
180 bst
->set_state(&bst
->dev
, false);
182 vlist_for_each_element(&bst
->members
, bm
, node
)
183 bridge_disable_member(bm
);
185 system_bridge_delbr(&bst
->dev
);
191 bridge_set_up(struct bridge_state
*bst
)
193 struct bridge_member
*bm
;
196 if (!bst
->force_active
&& !bst
->n_present
)
199 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
203 vlist_for_each_element(&bst
->members
, bm
, node
)
204 bridge_enable_member(bm
);
206 if (!bst
->force_active
&& !bst
->n_present
) {
207 /* initialization of all member interfaces failed */
208 system_bridge_delbr(&bst
->dev
);
209 device_set_present(&bst
->dev
, false);
213 ret
= bst
->set_state(&bst
->dev
, true);
215 bridge_set_down(bst
);
222 bridge_set_state(struct device
*dev
, bool up
)
224 struct bridge_state
*bst
;
226 bst
= container_of(dev
, struct bridge_state
, dev
);
229 return bridge_set_up(bst
);
231 return bridge_set_down(bst
);
234 static struct bridge_member
*
235 bridge_create_member(struct bridge_state
*bst
, struct device
*dev
, bool hotplug
)
237 struct bridge_member
*bm
;
239 bm
= calloc(1, sizeof(*bm
) + strlen(dev
->ifname
) + 1);
241 bm
->dev
.cb
= bridge_member_cb
;
242 bm
->dev
.hotplug
= hotplug
;
243 strcpy(bm
->name
, dev
->ifname
);
245 vlist_add(&bst
->members
, &bm
->node
, bm
->name
);
251 bridge_member_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
252 struct vlist_node
*node_old
)
254 struct bridge_member
*bm
;
258 bm
= container_of(node_new
, struct bridge_member
, node
);
267 device_add_user(&bm
->dev
, dev
);
272 bm
= container_of(node_old
, struct bridge_member
, node
);
273 bridge_remove_member(bm
);
274 device_remove_user(&bm
->dev
);
281 bridge_add_member(struct bridge_state
*bst
, const char *name
)
285 dev
= device_get(name
, true);
289 bridge_create_member(bst
, dev
, false);
293 bridge_hotplug_add(struct device
*dev
, struct device
*member
)
295 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
297 bridge_create_member(bst
, member
, true);
303 bridge_hotplug_del(struct device
*dev
, struct device
*member
)
305 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
306 struct bridge_member
*bm
;
308 bm
= vlist_find(&bst
->members
, member
->ifname
, bm
, node
);
310 return UBUS_STATUS_NOT_FOUND
;
312 vlist_delete(&bst
->members
, &bm
->node
);
317 bridge_hotplug_prepare(struct device
*dev
)
319 struct bridge_state
*bst
;
321 bst
= container_of(dev
, struct bridge_state
, dev
);
322 bst
->force_active
= true;
323 device_set_present(&bst
->dev
, true);
328 static const struct device_hotplug_ops bridge_ops
= {
329 .prepare
= bridge_hotplug_prepare
,
330 .add
= bridge_hotplug_add
,
331 .del
= bridge_hotplug_del
335 bridge_free(struct device
*dev
)
337 struct bridge_state
*bst
;
340 bst
= container_of(dev
, struct bridge_state
, dev
);
341 vlist_flush_all(&bst
->members
);
346 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
348 struct bridge_state
*bst
;
349 struct bridge_member
*bm
;
352 bst
= container_of(dev
, struct bridge_state
, dev
);
354 system_if_dump_info(dev
, b
);
355 list
= blobmsg_open_array(b
, "bridge-members");
357 vlist_for_each_element(&bst
->members
, bm
, node
)
358 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
360 blobmsg_close_array(b
, list
);
364 bridge_config_init(struct device
*dev
)
366 struct bridge_state
*bst
;
367 struct blob_attr
*cur
;
370 bst
= container_of(dev
, struct bridge_state
, dev
);
375 blobmsg_for_each_attr(cur
, bst
->ifnames
, rem
) {
376 bridge_add_member(bst
, blobmsg_data(cur
));
381 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
383 struct bridge_config
*cfg
= &bst
->config
;
384 struct blob_attr
*cur
;
388 cfg
->forward_delay
= 1;
389 cfg
->igmp_snoop
= true;
391 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
392 cfg
->stp
= blobmsg_get_bool(cur
);
394 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
395 cfg
->forward_delay
= blobmsg_get_u32(cur
);
397 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
398 cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
400 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
401 cfg
->ageing_time
= blobmsg_get_u32(cur
);
402 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
405 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
406 cfg
->hello_time
= blobmsg_get_u32(cur
);
407 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
410 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
411 cfg
->max_age
= blobmsg_get_u32(cur
);
412 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
416 static struct device
*
417 bridge_create(const char *name
, struct blob_attr
*attr
)
419 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
420 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
421 struct bridge_state
*bst
;
422 struct device
*dev
= NULL
;
424 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
425 blob_data(attr
), blob_len(attr
));
426 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
427 blob_data(attr
), blob_len(attr
));
429 bst
= calloc(1, sizeof(*bst
));
434 device_init(dev
, &bridge_device_type
, name
);
435 device_init_settings(dev
, tb_dev
);
436 dev
->config_pending
= true;
437 bst
->ifnames
= tb_br
[BRIDGE_ATTR_IFNAME
];
438 bridge_apply_settings(bst
, tb_br
);
440 bst
->set_state
= dev
->set_state
;
441 dev
->set_state
= bridge_set_state
;
443 dev
->hotplug_ops
= &bridge_ops
;
445 vlist_init(&bst
->members
, avl_strcmp
, bridge_member_update
);
446 bst
->members
.keep_old
= true;