9 static LIST_HEAD(interfaces);
12 clear_interface_errors(struct interface *iface)
14 struct interface_error *error, *tmp;
16 list_for_each_entry_safe(error, tmp, &iface->errors, list) {
17 list_del(&error->list);
22 void interface_add_error(struct interface *iface, const char *subsystem,
23 const char *code, const char **data, int n_data)
25 struct interface_error *error;
31 len = n_data * sizeof(char *);
32 datalen = alloca(len);
33 for (i = 0; i < n_data; i++) {
34 datalen[i] = strlen(data[i]) + 1;
39 error = calloc(1, sizeof(*error) + sizeof(char *) + len);
43 list_add_tail(&error->list, &iface->errors);
44 error->subsystem = subsystem;
47 dest = (char *) &error->data[n_data + 1];
48 for (i = 0; i < n_data; i++) {
49 error->data[i] = dest;
50 memcpy(dest, data[i], datalen[i]);
53 error->data[n_data] = NULL;
57 interface_event(struct interface *iface, enum interface_event ev)
63 __set_interface_up(struct interface *iface)
67 if (iface->state != IFS_DOWN)
70 ret = claim_device(iface->main_dev.dev);
74 iface->state = IFS_SETUP;
75 ret = iface->proto->handler(iface->proto, PROTO_CMD_SETUP, false);
82 release_device(iface->main_dev.dev);
84 iface->state = IFS_DOWN;
89 __set_interface_down(struct interface *iface, bool force)
91 clear_interface_errors(iface);
93 if (iface->state == IFS_DOWN ||
94 iface->state == IFS_TEARDOWN)
97 iface->state = IFS_TEARDOWN;
98 interface_event(iface, IFEV_DOWN);
100 iface->proto->handler(iface->proto, PROTO_CMD_TEARDOWN, force);
101 release_device(iface->main_dev.dev);
105 interface_cb(struct device_user *dep, enum device_event ev)
107 struct interface *iface;
110 iface = container_of(dep, struct interface, main_dev);
115 case DEV_EVENT_REMOVE:
122 if (iface->active == new_state)
125 iface->active = new_state;
128 if (iface->autostart)
129 set_interface_up(iface);
131 __set_interface_down(iface, true);
135 interface_proto_cb(struct interface_proto_state *state, enum interface_proto_event ev)
137 struct interface *iface = state->iface;
141 if (iface->state != IFS_SETUP)
144 iface->state = IFS_UP;
145 interface_event(iface, IFEV_UP);
148 iface->state = IFS_DOWN;
153 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state)
156 iface->proto->handler(iface->proto, PROTO_CMD_TEARDOWN, true);
157 iface->proto->free(iface->proto);
160 iface->state = IFS_DOWN;
161 iface->proto = state;
165 state->proto_event = interface_proto_cb;
166 state->iface = iface;
170 alloc_interface(const char *name)
172 struct interface *iface;
174 iface = get_interface(name);
178 iface = calloc(1, sizeof(*iface));
180 interface_set_proto_state(iface, get_default_proto());
186 iface->main_dev.cb = interface_cb;
187 iface->l3_iface = &iface->main_dev;
188 strncpy(iface->name, name, sizeof(iface->name) - 1);
189 list_add(&iface->list, &interfaces);
190 INIT_LIST_HEAD(&iface->errors);
192 netifd_ubus_add_interface(iface);
198 free_interface(struct interface *iface)
200 netifd_ubus_remove_interface(iface);
201 list_del(&iface->list);
202 if (iface->proto->free)
203 iface->proto->free(iface->proto);
208 get_interface(const char *name)
210 struct interface *iface;
212 list_for_each_entry(iface, &interfaces, list) {
213 if (!strcmp(iface->name, name))
220 interface_remove_link(struct interface *iface, struct device *llif)
222 struct device *dev = iface->main_dev.dev;
224 if (dev && dev->hotplug_ops) {
225 dev->hotplug_ops->del(dev, llif);
229 remove_device_user(&iface->main_dev);
233 interface_add_link(struct interface *iface, struct device *llif)
235 struct device *dev = iface->main_dev.dev;
237 if (dev && dev->hotplug_ops)
238 return dev->hotplug_ops->add(dev, llif);
240 if (iface->main_dev.dev)
241 interface_remove_link(iface, NULL);
243 add_device_user(&iface->main_dev, llif);
249 set_interface_up(struct interface *iface)
251 iface->autostart = true;
253 if (!iface->active) {
254 interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
258 if (iface->state != IFS_DOWN)
261 return __set_interface_up(iface);
265 set_interface_down(struct interface *iface)
267 iface->autostart = false;
268 __set_interface_down(iface, false);