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);
269 bridge_add_member(struct bridge_state *bst, const char *name)
273 dev = device_get(name, true);
277 bridge_create_member(bst, dev, false);
281 bridge_hotplug_add(struct device *dev, struct device *member)
283 struct bridge_state *bst = container_of(dev, struct bridge_state, dev);
285 bridge_create_member(bst, member, true);
291 bridge_hotplug_del(struct device *dev, struct device *member)
293 struct bridge_state *bst = container_of(dev, struct bridge_state, dev);
294 struct bridge_member *bm;
296 bm = vlist_find(&bst->members, member->ifname, bm, node);
298 return UBUS_STATUS_NOT_FOUND;
300 vlist_delete(&bst->members, &bm->node);
305 bridge_hotplug_prepare(struct device *dev)
307 struct bridge_state *bst;
309 bst = container_of(dev, struct bridge_state, dev);
310 bst->force_active = true;
311 device_set_present(&bst->dev, true);
316 static const struct device_hotplug_ops bridge_ops = {
317 .prepare = bridge_hotplug_prepare,
318 .add = bridge_hotplug_add,
319 .del = bridge_hotplug_del
323 bridge_free(struct device *dev)
325 struct bridge_state *bst;
328 bst = container_of(dev, struct bridge_state, dev);
329 vlist_flush_all(&bst->members);
334 bridge_dump_info(struct device *dev, struct blob_buf *b)
336 struct bridge_state *bst;
337 struct bridge_member *bm;
340 bst = container_of(dev, struct bridge_state, dev);
342 system_if_dump_info(dev, b);
343 list = blobmsg_open_array(b, "bridge-members");
345 vlist_for_each_element(&bst->members, bm, node)
346 blobmsg_add_string(b, NULL, bm->dev.dev->ifname);
348 blobmsg_close_array(b, list);
352 bridge_config_init(struct device *dev)
354 struct bridge_state *bst;
355 struct blob_attr *cur;
358 bst = container_of(dev, struct bridge_state, dev);
363 blobmsg_for_each_attr(cur, bst->ifnames, rem) {
364 bridge_add_member(bst, blobmsg_data(cur));
369 bridge_apply_settings(struct bridge_state *bst, struct blob_attr **tb)
371 struct bridge_config *cfg = &bst->config;
372 struct blob_attr *cur;
376 cfg->forward_delay = 1;
377 cfg->igmp_snoop = true;
379 if ((cur = tb[BRIDGE_ATTR_STP]))
380 cfg->stp = blobmsg_get_bool(cur);
382 if ((cur = tb[BRIDGE_ATTR_FORWARD_DELAY]))
383 cfg->forward_delay = blobmsg_get_u32(cur);
385 if ((cur = tb[BRIDGE_ATTR_IGMP_SNOOP]))
386 cfg->igmp_snoop = blobmsg_get_bool(cur);
388 if ((cur = tb[BRIDGE_ATTR_AGEING_TIME])) {
389 cfg->ageing_time = blobmsg_get_u32(cur);
390 cfg->flags |= BRIDGE_OPT_AGEING_TIME;
393 if ((cur = tb[BRIDGE_ATTR_HELLO_TIME])) {
394 cfg->hello_time = blobmsg_get_u32(cur);
395 cfg->flags |= BRIDGE_OPT_HELLO_TIME;
398 if ((cur = tb[BRIDGE_ATTR_MAX_AGE])) {
399 cfg->max_age = blobmsg_get_u32(cur);
400 cfg->flags |= BRIDGE_OPT_MAX_AGE;
404 static struct device *
405 bridge_create(const char *name, struct blob_attr *attr)
407 struct blob_attr *tb_dev[__DEV_ATTR_MAX];
408 struct blob_attr *tb_br[__BRIDGE_ATTR_MAX];
409 struct bridge_state *bst;
410 struct device *dev = NULL;
412 blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, tb_dev,
413 blob_data(attr), blob_len(attr));
414 blobmsg_parse(bridge_attrs, __BRIDGE_ATTR_MAX, tb_br,
415 blob_data(attr), blob_len(attr));
417 bst = calloc(1, sizeof(*bst));
422 device_init(dev, &bridge_device_type, name);
423 device_init_settings(dev, tb_dev);
424 dev->config_pending = true;
425 bst->ifnames = tb_br[BRIDGE_ATTR_IFNAME];
426 bridge_apply_settings(bst, tb_br);
428 bst->set_state = dev->set_state;
429 dev->set_state = bridge_set_state;
431 dev->hotplug_ops = &bridge_ops;
433 vlist_init(&bst->members, avl_strcmp, bridge_member_update);