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_remove_member(struct bridge_member *bm)
124 struct bridge_state *bst = bm->bst;
130 bm->bst->n_present--;
132 bridge_disable_member(bm);
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 bridge_free_member(bm);
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 list_for_each_entry(bm, &bst->members, list)
180 bridge_disable_member(bm);
182 system_bridge_delbr(&bst->dev);
188 bridge_set_up(struct bridge_state *bst)
190 struct bridge_member *bm;
196 ret = system_bridge_addbr(&bst->dev, &bst->config);
200 list_for_each_entry(bm, &bst->members, list)
201 bridge_enable_member(bm);
203 if (!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;
236 bm = calloc(1, sizeof(*bm));
238 bm->dev.cb = bridge_member_cb;
239 bm->dev.hotplug = hotplug;
240 list_add_tail(&bm->list, &bst->members);
242 device_add_user(&bm->dev, dev);
248 bridge_free_member(struct bridge_member *bm)
250 bridge_remove_member(bm);
251 device_remove_user(&bm->dev);
257 bridge_add_member(struct bridge_state *bst, const char *name)
261 dev = device_get(name, true);
265 bridge_create_member(bst, dev, false);
269 bridge_hotplug_add(struct device *dev, struct device *member)
271 struct bridge_state *bst = container_of(dev, struct bridge_state, dev);
273 bridge_create_member(bst, member, true);
279 bridge_hotplug_del(struct device *dev, struct device *member)
281 struct bridge_state *bst = container_of(dev, struct bridge_state, dev);
282 struct bridge_member *bm;
284 list_for_each_entry(bm, &bst->members, list) {
285 if (bm->dev.dev != member)
288 bridge_free_member(bm);
295 static const struct device_hotplug_ops bridge_ops = {
296 .add = bridge_hotplug_add,
297 .del = bridge_hotplug_del
301 bridge_free(struct device *dev)
303 struct bridge_state *bst;
304 struct bridge_member *bm;
307 bst = container_of(dev, struct bridge_state, dev);
308 while (!list_empty(&bst->members)) {
309 bm = list_first_entry(&bst->members, struct bridge_member, list);
310 bridge_free_member(bm);
316 bridge_dump_info(struct device *dev, struct blob_buf *b)
318 struct bridge_state *bst;
319 struct bridge_member *bm;
322 bst = container_of(dev, struct bridge_state, dev);
324 list = blobmsg_open_array(b, "bridge-members");
325 list_for_each_entry(bm, &bst->members, list) {
326 blobmsg_add_string(b, NULL, bm->dev.dev->ifname);
328 blobmsg_close_array(b, list);
332 bridge_config_init(struct device *dev)
334 struct bridge_state *bst;
335 struct blob_attr *cur;
338 bst = container_of(dev, struct bridge_state, dev);
343 blobmsg_for_each_attr(cur, bst->ifnames, rem) {
344 bridge_add_member(bst, blobmsg_data(cur));
349 bridge_apply_settings(struct bridge_state *bst, struct blob_attr **tb)
351 struct bridge_config *cfg = &bst->config;
352 struct blob_attr *cur;
356 cfg->forward_delay = 1;
357 cfg->igmp_snoop = true;
359 if ((cur = tb[BRIDGE_ATTR_STP]))
360 cfg->stp = blobmsg_get_bool(cur);
362 if ((cur = tb[BRIDGE_ATTR_FORWARD_DELAY]))
363 cfg->forward_delay = blobmsg_get_u32(cur);
365 if ((cur = tb[BRIDGE_ATTR_IGMP_SNOOP]))
366 cfg->igmp_snoop = blobmsg_get_bool(cur);
368 if ((cur = tb[BRIDGE_ATTR_AGEING_TIME])) {
369 cfg->ageing_time = blobmsg_get_u32(cur);
370 cfg->flags |= BRIDGE_OPT_AGEING_TIME;
373 if ((cur = tb[BRIDGE_ATTR_HELLO_TIME])) {
374 cfg->hello_time = blobmsg_get_u32(cur);
375 cfg->flags |= BRIDGE_OPT_HELLO_TIME;
378 if ((cur = tb[BRIDGE_ATTR_MAX_AGE])) {
379 cfg->max_age = blobmsg_get_u32(cur);
380 cfg->flags |= BRIDGE_OPT_MAX_AGE;
384 static struct device *
385 bridge_create(const char *name, struct blob_attr *attr)
387 struct blob_attr *tb_dev[__DEV_ATTR_MAX];
388 struct blob_attr *tb_br[__BRIDGE_ATTR_MAX];
389 struct bridge_state *bst;
390 struct device *dev = NULL;
392 blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, tb_dev,
393 blob_data(attr), blob_len(attr));
394 blobmsg_parse(bridge_attrs, __BRIDGE_ATTR_MAX, tb_br,
395 blob_data(attr), blob_len(attr));
397 bst = calloc(1, sizeof(*bst));
402 device_init(dev, &bridge_device_type, name);
403 device_init_settings(dev, tb_dev);
404 dev->config_pending = true;
405 bst->ifnames = tb_br[BRIDGE_ATTR_IFNAME];
406 bridge_apply_settings(bst, tb_br);
408 bst->set_state = dev->set_state;
409 dev->set_state = bridge_set_state;
411 dev->hotplug_ops = &bridge_ops;
413 INIT_LIST_HEAD(&bst->members);