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 mark_interface_down(struct interface *iface)
65 release_device(iface->main_dev.dev);
66 iface->state = IFS_DOWN;
70 __set_interface_up(struct interface *iface)
74 if (iface->state != IFS_DOWN)
77 ret = claim_device(iface->main_dev.dev);
81 iface->state = IFS_SETUP;
82 ret = iface->proto->handler(iface->proto, PROTO_CMD_SETUP, false);
84 mark_interface_down(iface);
93 __set_interface_down(struct interface *iface, bool force)
95 clear_interface_errors(iface);
97 if (iface->state == IFS_DOWN ||
98 iface->state == IFS_TEARDOWN)
101 iface->state = IFS_TEARDOWN;
102 interface_event(iface, IFEV_DOWN);
104 iface->proto->handler(iface->proto, PROTO_CMD_TEARDOWN, force);
105 release_device(iface->main_dev.dev);
109 interface_cb(struct device_user *dep, enum device_event ev)
111 struct interface *iface;
114 iface = container_of(dep, struct interface, main_dev);
119 case DEV_EVENT_REMOVE:
126 if (iface->active == new_state)
129 iface->active = new_state;
132 if (iface->autostart)
133 set_interface_up(iface);
135 __set_interface_down(iface, true);
139 interface_proto_cb(struct interface_proto_state *state, enum interface_proto_event ev)
141 struct interface *iface = state->iface;
145 if (iface->state != IFS_SETUP)
148 iface->state = IFS_UP;
149 interface_event(iface, IFEV_UP);
152 if (iface->state == IFS_DOWN)
155 mark_interface_down(iface);
160 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state)
163 iface->proto->handler(iface->proto, PROTO_CMD_TEARDOWN, true);
164 iface->proto->free(iface->proto);
167 iface->state = IFS_DOWN;
168 iface->proto = state;
172 state->proto_event = interface_proto_cb;
173 state->iface = iface;
177 alloc_interface(const char *name)
179 struct interface *iface;
181 iface = get_interface(name);
185 iface = calloc(1, sizeof(*iface));
187 interface_set_proto_state(iface, get_default_proto());
193 iface->main_dev.cb = interface_cb;
194 iface->l3_iface = &iface->main_dev;
195 strncpy(iface->name, name, sizeof(iface->name) - 1);
196 list_add(&iface->list, &interfaces);
197 INIT_LIST_HEAD(&iface->errors);
199 netifd_ubus_add_interface(iface);
205 free_interface(struct interface *iface)
207 netifd_ubus_remove_interface(iface);
208 list_del(&iface->list);
209 if (iface->proto->free)
210 iface->proto->free(iface->proto);
215 get_interface(const char *name)
217 struct interface *iface;
219 list_for_each_entry(iface, &interfaces, list) {
220 if (!strcmp(iface->name, name))
227 interface_remove_link(struct interface *iface, struct device *llif)
229 struct device *dev = iface->main_dev.dev;
231 if (dev && dev->hotplug_ops) {
232 dev->hotplug_ops->del(dev, llif);
236 remove_device_user(&iface->main_dev);
240 interface_add_link(struct interface *iface, struct device *llif)
242 struct device *dev = iface->main_dev.dev;
244 if (dev && dev->hotplug_ops)
245 return dev->hotplug_ops->add(dev, llif);
247 if (iface->main_dev.dev)
248 interface_remove_link(iface, NULL);
250 add_device_user(&iface->main_dev, llif);
256 set_interface_up(struct interface *iface)
258 iface->autostart = true;
260 if (!iface->active) {
261 interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
265 if (iface->state != IFS_DOWN)
268 return __set_interface_up(iface);
272 set_interface_down(struct interface *iface)
274 iface->autostart = false;
275 __set_interface_down(iface, false);