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 list_head members
;
74 struct bridge_member
{
75 struct list_head list
;
76 struct bridge_state
*bst
;
77 struct device_user dev
;
81 static void bridge_free_member(struct bridge_member
*bm
);
84 bridge_disable_member(struct bridge_member
*bm
)
86 struct bridge_state
*bst
= bm
->bst
;
91 system_bridge_delif(&bst
->dev
, bm
->dev
.dev
);
92 device_release(&bm
->dev
);
98 bridge_enable_member(struct bridge_member
*bm
)
100 struct bridge_state
*bst
= bm
->bst
;
106 ret
= device_claim(&bm
->dev
);
110 ret
= system_bridge_addif(&bst
->dev
, bm
->dev
.dev
);
123 bridge_remove_member(struct bridge_member
*bm
)
125 struct bridge_state
*bst
= bm
->bst
;
131 bm
->bst
->n_present
--;
133 bridge_disable_member(bm
);
135 bst
->force_active
= false;
136 if (bst
->n_present
== 0)
137 device_set_present(&bst
->dev
, false);
141 bridge_member_cb(struct device_user
*dev
, enum device_event ev
)
143 struct bridge_member
*bm
= container_of(dev
, struct bridge_member
, dev
);
144 struct bridge_state
*bst
= bm
->bst
;
148 assert(!bm
->present
);
154 bridge_enable_member(bm
);
155 else if (bst
->n_present
== 1)
156 device_set_present(&bst
->dev
, true);
159 case DEV_EVENT_REMOVE
:
164 bridge_free_member(bm
);
166 bridge_remove_member(bm
);
175 bridge_set_down(struct bridge_state
*bst
)
177 struct bridge_member
*bm
;
179 bst
->set_state(&bst
->dev
, false);
181 list_for_each_entry(bm
, &bst
->members
, list
)
182 bridge_disable_member(bm
);
184 system_bridge_delbr(&bst
->dev
);
190 bridge_set_up(struct bridge_state
*bst
)
192 struct bridge_member
*bm
;
195 if (!bst
->force_active
&& !bst
->n_present
)
198 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
202 list_for_each_entry(bm
, &bst
->members
, list
)
203 bridge_enable_member(bm
);
205 if (!bst
->force_active
&& !bst
->n_present
) {
206 /* initialization of all member interfaces failed */
207 system_bridge_delbr(&bst
->dev
);
208 device_set_present(&bst
->dev
, false);
212 ret
= bst
->set_state(&bst
->dev
, true);
214 bridge_set_down(bst
);
221 bridge_set_state(struct device
*dev
, bool up
)
223 struct bridge_state
*bst
;
225 bst
= container_of(dev
, struct bridge_state
, dev
);
228 return bridge_set_up(bst
);
230 return bridge_set_down(bst
);
233 static struct bridge_member
*
234 bridge_create_member(struct bridge_state
*bst
, struct device
*dev
, bool hotplug
)
236 struct bridge_member
*bm
;
238 bm
= calloc(1, sizeof(*bm
));
240 bm
->dev
.cb
= bridge_member_cb
;
241 bm
->dev
.hotplug
= hotplug
;
242 list_add_tail(&bm
->list
, &bst
->members
);
244 device_add_user(&bm
->dev
, dev
);
250 bridge_free_member(struct bridge_member
*bm
)
252 bridge_remove_member(bm
);
253 device_remove_user(&bm
->dev
);
259 bridge_add_member(struct bridge_state
*bst
, const char *name
)
263 dev
= device_get(name
, true);
267 bridge_create_member(bst
, dev
, false);
271 bridge_hotplug_add(struct device
*dev
, struct device
*member
)
273 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
275 bridge_create_member(bst
, member
, true);
281 bridge_hotplug_del(struct device
*dev
, struct device
*member
)
283 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
284 struct bridge_member
*bm
;
286 list_for_each_entry(bm
, &bst
->members
, list
) {
287 if (bm
->dev
.dev
!= member
)
290 bridge_free_member(bm
);
294 return UBUS_STATUS_NOT_FOUND
;
298 bridge_hotplug_prepare(struct device
*dev
)
300 struct bridge_state
*bst
;
302 bst
= container_of(dev
, struct bridge_state
, dev
);
303 bst
->force_active
= true;
304 device_set_present(&bst
->dev
, true);
309 static const struct device_hotplug_ops bridge_ops
= {
310 .prepare
= bridge_hotplug_prepare
,
311 .add
= bridge_hotplug_add
,
312 .del
= bridge_hotplug_del
316 bridge_free(struct device
*dev
)
318 struct bridge_state
*bst
;
319 struct bridge_member
*bm
;
322 bst
= container_of(dev
, struct bridge_state
, dev
);
323 while (!list_empty(&bst
->members
)) {
324 bm
= list_first_entry(&bst
->members
, struct bridge_member
, list
);
325 bridge_free_member(bm
);
331 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
333 struct bridge_state
*bst
;
334 struct bridge_member
*bm
;
337 bst
= container_of(dev
, struct bridge_state
, dev
);
339 list
= blobmsg_open_array(b
, "bridge-members");
340 list_for_each_entry(bm
, &bst
->members
, list
) {
341 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
343 blobmsg_close_array(b
, list
);
347 bridge_config_init(struct device
*dev
)
349 struct bridge_state
*bst
;
350 struct blob_attr
*cur
;
353 bst
= container_of(dev
, struct bridge_state
, dev
);
358 blobmsg_for_each_attr(cur
, bst
->ifnames
, rem
) {
359 bridge_add_member(bst
, blobmsg_data(cur
));
364 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
366 struct bridge_config
*cfg
= &bst
->config
;
367 struct blob_attr
*cur
;
371 cfg
->forward_delay
= 1;
372 cfg
->igmp_snoop
= true;
374 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
375 cfg
->stp
= blobmsg_get_bool(cur
);
377 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
378 cfg
->forward_delay
= blobmsg_get_u32(cur
);
380 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
381 cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
383 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
384 cfg
->ageing_time
= blobmsg_get_u32(cur
);
385 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
388 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
389 cfg
->hello_time
= blobmsg_get_u32(cur
);
390 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
393 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
394 cfg
->max_age
= blobmsg_get_u32(cur
);
395 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
399 static struct device
*
400 bridge_create(const char *name
, struct blob_attr
*attr
)
402 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
403 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
404 struct bridge_state
*bst
;
405 struct device
*dev
= NULL
;
407 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
408 blob_data(attr
), blob_len(attr
));
409 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
410 blob_data(attr
), blob_len(attr
));
412 bst
= calloc(1, sizeof(*bst
));
417 device_init(dev
, &bridge_device_type
, name
);
418 device_init_settings(dev
, tb_dev
);
419 dev
->config_pending
= true;
420 bst
->ifnames
= tb_br
[BRIDGE_ATTR_IFNAME
];
421 bridge_apply_settings(bst
, tb_br
);
423 bst
->set_state
= dev
->set_state
;
424 dev
->set_state
= bridge_set_state
;
426 dev
->hotplug_ops
= &bridge_ops
;
428 INIT_LIST_HEAD(&bst
->members
);