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
;
69 struct list_head members
;
73 struct bridge_member
{
74 struct list_head list
;
75 struct bridge_state
*bst
;
76 struct device_user dev
;
80 static void bridge_free_member(struct bridge_member
*bm
);
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
);
122 bridge_member_cb(struct device_user
*dev
, enum device_event ev
)
124 struct bridge_member
*bm
= container_of(dev
, struct bridge_member
, dev
);
125 struct bridge_state
*bst
= bm
->bst
;
129 assert(!bm
->present
);
135 bridge_enable_member(bm
);
136 else if (bst
->n_present
== 1)
137 device_set_present(&bst
->dev
, true);
140 case DEV_EVENT_REMOVE
:
145 bridge_disable_member(bm
);
148 bm
->bst
->n_present
--;
149 if (bst
->n_present
== 0)
150 device_set_present(&bst
->dev
, false);
153 bridge_free_member(bm
);
161 bridge_set_down(struct bridge_state
*bst
)
163 struct bridge_member
*bm
;
165 bst
->set_state(&bst
->dev
, false);
167 list_for_each_entry(bm
, &bst
->members
, list
)
168 bridge_disable_member(bm
);
170 system_bridge_delbr(&bst
->dev
);
176 bridge_set_up(struct bridge_state
*bst
)
178 struct bridge_member
*bm
;
184 ret
= system_bridge_addbr(&bst
->dev
, &bst
->config
);
188 list_for_each_entry(bm
, &bst
->members
, list
)
189 bridge_enable_member(bm
);
191 if (!bst
->n_present
) {
192 /* initialization of all member interfaces failed */
193 system_bridge_delbr(&bst
->dev
);
194 device_set_present(&bst
->dev
, false);
198 ret
= bst
->set_state(&bst
->dev
, true);
200 bridge_set_down(bst
);
207 bridge_set_state(struct device
*dev
, bool up
)
209 struct bridge_state
*bst
;
211 bst
= container_of(dev
, struct bridge_state
, dev
);
214 return bridge_set_up(bst
);
216 return bridge_set_down(bst
);
219 static struct bridge_member
*
220 bridge_create_member(struct bridge_state
*bst
, struct device
*dev
, bool hotplug
)
222 struct bridge_member
*bm
;
224 bm
= calloc(1, sizeof(*bm
));
226 bm
->dev
.cb
= bridge_member_cb
;
227 device_add_user(&bm
->dev
, dev
);
228 bm
->dev
.hotplug
= hotplug
;
230 list_add_tail(&bm
->list
, &bst
->members
);
233 bridge_enable_member(bm
);
239 bridge_free_member(struct bridge_member
*bm
)
242 bridge_member_cb(&bm
->dev
, DEV_EVENT_REMOVE
);
243 bm
->bst
->n_present
--;
244 if (bm
->bst
->dev
.active
)
245 bridge_disable_member(bm
);
249 device_remove_user(&bm
->dev
);
254 bridge_add_member(struct bridge_state
*bst
, const char *name
)
258 dev
= device_get(name
, true);
262 bridge_create_member(bst
, dev
, false);
266 bridge_hotplug_add(struct device
*dev
, struct device
*member
)
268 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
270 bridge_create_member(bst
, member
, true);
276 bridge_hotplug_del(struct device
*dev
, struct device
*member
)
278 struct bridge_state
*bst
= container_of(dev
, struct bridge_state
, dev
);
279 struct bridge_member
*bm
;
281 list_for_each_entry(bm
, &bst
->members
, list
) {
282 if (bm
->dev
.dev
!= member
)
285 bridge_free_member(bm
);
292 static const struct device_hotplug_ops bridge_ops
= {
293 .add
= bridge_hotplug_add
,
294 .del
= bridge_hotplug_del
298 bridge_free(struct device
*dev
)
300 struct bridge_state
*bst
;
301 struct bridge_member
*bm
;
304 bst
= container_of(dev
, struct bridge_state
, dev
);
305 while (!list_empty(&bst
->members
)) {
306 bm
= list_first_entry(&bst
->members
, struct bridge_member
, list
);
307 bridge_free_member(bm
);
313 bridge_dump_info(struct device
*dev
, struct blob_buf
*b
)
315 struct bridge_state
*bst
;
316 struct bridge_member
*bm
;
319 bst
= container_of(dev
, struct bridge_state
, dev
);
321 list
= blobmsg_open_array(b
, "bridge-members");
322 list_for_each_entry(bm
, &bst
->members
, list
) {
323 blobmsg_add_string(b
, NULL
, bm
->dev
.dev
->ifname
);
325 blobmsg_close_array(b
, list
);
329 bridge_config_init(struct device
*dev
)
331 struct bridge_state
*bst
;
332 struct blob_attr
*cur
;
335 bst
= container_of(dev
, struct bridge_state
, dev
);
336 blobmsg_for_each_attr(cur
, bst
->ifnames
, rem
) {
337 bridge_add_member(bst
, blobmsg_data(cur
));
342 bridge_apply_settings(struct bridge_state
*bst
, struct blob_attr
**tb
)
344 struct bridge_config
*cfg
= &bst
->config
;
345 struct blob_attr
*cur
;
349 cfg
->forward_delay
= 1;
350 cfg
->igmp_snoop
= true;
352 if ((cur
= tb
[BRIDGE_ATTR_STP
]))
353 cfg
->stp
= blobmsg_get_bool(cur
);
355 if ((cur
= tb
[BRIDGE_ATTR_FORWARD_DELAY
]))
356 cfg
->forward_delay
= blobmsg_get_u32(cur
);
358 if ((cur
= tb
[BRIDGE_ATTR_IGMP_SNOOP
]))
359 cfg
->igmp_snoop
= blobmsg_get_bool(cur
);
361 if ((cur
= tb
[BRIDGE_ATTR_AGEING_TIME
])) {
362 cfg
->ageing_time
= blobmsg_get_u32(cur
);
363 cfg
->flags
|= BRIDGE_OPT_AGEING_TIME
;
366 if ((cur
= tb
[BRIDGE_ATTR_HELLO_TIME
])) {
367 cfg
->hello_time
= blobmsg_get_u32(cur
);
368 cfg
->flags
|= BRIDGE_OPT_HELLO_TIME
;
371 if ((cur
= tb
[BRIDGE_ATTR_MAX_AGE
])) {
372 cfg
->max_age
= blobmsg_get_u32(cur
);
373 cfg
->flags
|= BRIDGE_OPT_MAX_AGE
;
377 static struct device
*
378 bridge_create(const char *name
, struct blob_attr
*attr
)
380 struct blob_attr
*tb_dev
[__DEV_ATTR_MAX
];
381 struct blob_attr
*tb_br
[__BRIDGE_ATTR_MAX
];
382 struct bridge_state
*bst
;
383 struct device
*dev
= NULL
;
385 blobmsg_parse(device_attr_list
.params
, __DEV_ATTR_MAX
, tb_dev
,
386 blob_data(attr
), blob_len(attr
));
387 blobmsg_parse(bridge_attrs
, __BRIDGE_ATTR_MAX
, tb_br
,
388 blob_data(attr
), blob_len(attr
));
390 if (!tb_br
[BRIDGE_ATTR_IFNAME
])
393 bst
= calloc(1, sizeof(*bst
));
398 device_init(dev
, &bridge_device_type
, name
);
399 device_init_settings(dev
, tb_dev
);
400 dev
->config_pending
= true;
401 bst
->ifnames
= tb_br
[BRIDGE_ATTR_IFNAME
];
402 bridge_apply_settings(bst
, tb_br
);
404 bst
->set_state
= dev
->set_state
;
405 dev
->set_state
= bridge_set_state
;
407 dev
->hotplug_ops
= &bridge_ops
;
409 INIT_LIST_HEAD(&bst
->members
);