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);
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 bst->force_active = false;
135 if (bst->n_present == 0)
136 device_set_present(&bst->dev, false);
140 bridge_member_cb(struct device_user *dev, enum device_event ev)
142 struct bridge_member *bm = container_of(dev, struct bridge_member, dev);
143 struct bridge_state *bst = bm->bst;
147 assert(!bm->present);
153 bridge_enable_member(bm);
154 else if (bst->n_present == 1)
155 device_set_present(&bst->dev, true);
158 case DEV_EVENT_REMOVE:
163 vlist_delete(&bst->members, &bm->node);
165 bridge_remove_member(bm);
174 bridge_set_down(struct bridge_state *bst)
176 struct bridge_member *bm;
178 bst->set_state(&bst->dev, false);
180 vlist_for_each_element(&bst->members, bm, node)
181 bridge_disable_member(bm);
183 system_bridge_delbr(&bst->dev);
189 bridge_set_up(struct bridge_state *bst)
191 struct bridge_member *bm;
194 if (!bst->force_active && !bst->n_present)
197 ret = system_bridge_addbr(&bst->dev, &bst->config);
201 vlist_for_each_element(&bst->members, bm, node)
202 bridge_enable_member(bm);
204 if (!bst->force_active && !bst->n_present) {
205 /* initialization of all member interfaces failed */
206 system_bridge_delbr(&bst->dev);
207 device_set_present(&bst->dev, false);
211 ret = bst->set_state(&bst->dev, true);
213 bridge_set_down(bst);
220 bridge_set_state(struct device *dev, bool up)
222 struct bridge_state *bst;
224 bst = container_of(dev, struct bridge_state, dev);
227 return bridge_set_up(bst);
229 return bridge_set_down(bst);
232 static struct bridge_member *
233 bridge_create_member(struct bridge_state *bst, struct device *dev, bool hotplug)
235 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 strcpy(bm->name, dev->ifname);
243 vlist_add(&bst->members, &bm->node, bm->name);
249 bridge_member_update(struct vlist_tree *tree, struct vlist_node *node_new,
250 struct vlist_node *node_old)
252 struct bridge_member *bm;
256 bm = container_of(node_new, struct bridge_member, node);
265 device_add_user(&bm->dev, dev);
270 bm = container_of(node_old, struct bridge_member, node);
271 bridge_remove_member(bm);
272 device_remove_user(&bm->dev);
279 bridge_add_member(struct bridge_state *bst, const char *name)
283 dev = device_get(name, true);
287 bridge_create_member(bst, dev, false);
291 bridge_hotplug_add(struct device *dev, struct device *member)
293 struct bridge_state *bst = container_of(dev, struct bridge_state, dev);
295 bridge_create_member(bst, member, true);
301 bridge_hotplug_del(struct device *dev, struct device *member)
303 struct bridge_state *bst = container_of(dev, struct bridge_state, dev);
304 struct bridge_member *bm;
306 bm = vlist_find(&bst->members, member->ifname, bm, node);
308 return UBUS_STATUS_NOT_FOUND;
310 vlist_delete(&bst->members, &bm->node);
315 bridge_hotplug_prepare(struct device *dev)
317 struct bridge_state *bst;
319 bst = container_of(dev, struct bridge_state, dev);
320 bst->force_active = true;
321 device_set_present(&bst->dev, true);
326 static const struct device_hotplug_ops bridge_ops = {
327 .prepare = bridge_hotplug_prepare,
328 .add = bridge_hotplug_add,
329 .del = bridge_hotplug_del
333 bridge_free(struct device *dev)
335 struct bridge_state *bst;
338 bst = container_of(dev, struct bridge_state, dev);
339 vlist_flush_all(&bst->members);
344 bridge_dump_info(struct device *dev, struct blob_buf *b)
346 struct bridge_state *bst;
347 struct bridge_member *bm;
350 bst = container_of(dev, struct bridge_state, dev);
352 system_if_dump_info(dev, b);
353 list = blobmsg_open_array(b, "bridge-members");
355 vlist_for_each_element(&bst->members, bm, node)
356 blobmsg_add_string(b, NULL, bm->dev.dev->ifname);
358 blobmsg_close_array(b, list);
362 bridge_config_init(struct device *dev)
364 struct bridge_state *bst;
365 struct blob_attr *cur;
368 bst = container_of(dev, struct bridge_state, dev);
373 blobmsg_for_each_attr(cur, bst->ifnames, rem) {
374 bridge_add_member(bst, blobmsg_data(cur));
379 bridge_apply_settings(struct bridge_state *bst, struct blob_attr **tb)
381 struct bridge_config *cfg = &bst->config;
382 struct blob_attr *cur;
386 cfg->forward_delay = 1;
387 cfg->igmp_snoop = true;
389 if ((cur = tb[BRIDGE_ATTR_STP]))
390 cfg->stp = blobmsg_get_bool(cur);
392 if ((cur = tb[BRIDGE_ATTR_FORWARD_DELAY]))
393 cfg->forward_delay = blobmsg_get_u32(cur);
395 if ((cur = tb[BRIDGE_ATTR_IGMP_SNOOP]))
396 cfg->igmp_snoop = blobmsg_get_bool(cur);
398 if ((cur = tb[BRIDGE_ATTR_AGEING_TIME])) {
399 cfg->ageing_time = blobmsg_get_u32(cur);
400 cfg->flags |= BRIDGE_OPT_AGEING_TIME;
403 if ((cur = tb[BRIDGE_ATTR_HELLO_TIME])) {
404 cfg->hello_time = blobmsg_get_u32(cur);
405 cfg->flags |= BRIDGE_OPT_HELLO_TIME;
408 if ((cur = tb[BRIDGE_ATTR_MAX_AGE])) {
409 cfg->max_age = blobmsg_get_u32(cur);
410 cfg->flags |= BRIDGE_OPT_MAX_AGE;
414 static struct device *
415 bridge_create(const char *name, struct blob_attr *attr)
417 struct blob_attr *tb_dev[__DEV_ATTR_MAX];
418 struct blob_attr *tb_br[__BRIDGE_ATTR_MAX];
419 struct bridge_state *bst;
420 struct device *dev = NULL;
422 blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, tb_dev,
423 blob_data(attr), blob_len(attr));
424 blobmsg_parse(bridge_attrs, __BRIDGE_ATTR_MAX, tb_br,
425 blob_data(attr), blob_len(attr));
427 bst = calloc(1, sizeof(*bst));
432 device_init(dev, &bridge_device_type, name);
433 device_init_settings(dev, tb_dev);
434 dev->config_pending = true;
435 bst->ifnames = tb_br[BRIDGE_ATTR_IFNAME];
436 bridge_apply_settings(bst, tb_br);
438 bst->set_state = dev->set_state;
439 dev->set_state = bridge_set_state;
441 dev->hotplug_ops = &bridge_ops;
443 vlist_init(&bst->members, avl_strcmp, bridge_member_update);
444 bst->members.keep_old = true;