8 #include "interface-ip.h"
13 static LIST_HEAD(interfaces);
22 static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
23 [IFACE_ATTR_PROTO] = { .name = "proto", .type = BLOBMSG_TYPE_STRING },
24 [IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
25 [IFACE_ATTR_AUTO] = { .name = "auto", .type = BLOBMSG_TYPE_BOOL },
28 const struct config_param_list interface_attr_list = {
29 .n_params = IFACE_ATTR_MAX,
30 .params = iface_attrs,
34 clear_interface_errors(struct interface *iface)
36 struct interface_error *error, *tmp;
38 list_for_each_entry_safe(error, tmp, &iface->errors, list) {
39 list_del(&error->list);
44 void interface_add_error(struct interface *iface, const char *subsystem,
45 const char *code, const char **data, int n_data)
47 struct interface_error *error;
53 len = n_data * sizeof(char *);
54 datalen = alloca(len);
55 for (i = 0; i < n_data; i++) {
56 datalen[i] = strlen(data[i]) + 1;
61 error = calloc(1, sizeof(*error) + sizeof(char *) + len);
65 list_add_tail(&error->list, &iface->errors);
66 error->subsystem = subsystem;
69 dest = (char *) &error->data[n_data + 1];
70 for (i = 0; i < n_data; i++) {
71 error->data[i] = dest;
72 memcpy(dest, data[i], datalen[i]);
75 error->data[n_data] = NULL;
79 interface_event(struct interface *iface, enum interface_event ev)
85 mark_interface_down(struct interface *iface)
87 vlist_flush_all(&iface->proto_addr);
88 vlist_flush_all(&iface->proto_route);
89 if (iface->main_dev.dev)
90 device_release(&iface->main_dev);
91 iface->state = IFS_DOWN;
95 __interface_set_up(struct interface *iface)
99 if (iface->state != IFS_DOWN)
102 if (iface->main_dev.dev) {
103 ret = device_claim(&iface->main_dev);
108 iface->state = IFS_SETUP;
109 ret = interface_proto_event(iface->proto, PROTO_CMD_SETUP, false);
111 mark_interface_down(iface);
120 __interface_set_down(struct interface *iface, bool force)
122 clear_interface_errors(iface);
124 if (iface->state == IFS_DOWN ||
125 iface->state == IFS_TEARDOWN)
128 iface->state = IFS_TEARDOWN;
129 interface_event(iface, IFEV_DOWN);
130 interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, force);
134 interface_cb(struct device_user *dep, enum device_event ev)
136 struct interface *iface;
139 iface = container_of(dep, struct interface, main_dev);
144 case DEV_EVENT_REMOVE:
151 interface_set_available(iface, new_state);
155 interface_set_available(struct interface *iface, bool new_state)
157 if (iface->available == new_state)
160 iface->available = new_state;
163 if (iface->autostart && !config_init)
164 interface_set_up(iface);
166 __interface_set_down(iface, true);
170 interface_proto_cb(struct interface_proto_state *state, enum interface_proto_event ev)
172 struct interface *iface = state->iface;
176 if (iface->state != IFS_SETUP)
179 iface->state = IFS_UP;
180 interface_event(iface, IFEV_UP);
183 if (iface->state == IFS_DOWN)
186 mark_interface_down(iface);
188 case IFPEV_LINK_LOST:
189 if (iface->state != IFS_UP)
192 iface->state = IFS_SETUP;
193 interface_event(iface, IFEV_DOWN);
198 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state)
201 interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, true);
202 iface->proto->free(iface->proto);
205 iface->state = IFS_DOWN;
206 iface->proto = state;
210 state->proto_event = interface_proto_cb;
211 state->iface = iface;
215 interface_alloc(const char *name, struct blob_attr *attr)
217 struct interface *iface;
218 struct blob_attr *tb[IFACE_ATTR_MAX];
219 struct blob_attr *cur;
221 const char *proto_name = NULL;
223 iface = interface_get(name);
227 iface = calloc(1, sizeof(*iface));
228 iface->main_dev.cb = interface_cb;
229 iface->l3_dev = &iface->main_dev;
230 strncpy(iface->name, name, sizeof(iface->name) - 1);
231 list_add_tail(&iface->list, &interfaces);
232 INIT_LIST_HEAD(&iface->errors);
234 interface_ip_init(iface);
236 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
237 blob_data(attr), blob_len(attr));
239 if ((cur = tb[IFACE_ATTR_PROTO]))
240 proto_name = blobmsg_data(cur);
242 proto_attach_interface(iface, proto_name);
244 if (iface->proto_handler &&
245 !(iface->proto_handler->flags & PROTO_FLAG_NODEV) &&
246 (cur = tb[IFACE_ATTR_IFNAME])) {
247 dev = device_get(blobmsg_data(cur), true);
249 device_add_user(&iface->main_dev, dev);
252 if ((cur = tb[IFACE_ATTR_AUTO]))
253 iface->autostart = blobmsg_get_bool(cur);
255 iface->autostart = true;
257 netifd_ubus_add_interface(iface);
258 config_set_state(&iface->config, attr);
264 interface_free(struct interface *iface)
266 netifd_ubus_remove_interface(iface);
267 list_del(&iface->list);
268 if (iface->proto->free)
269 iface->proto->free(iface->proto);
274 interface_get(const char *name)
276 struct interface *iface;
278 list_for_each_entry(iface, &interfaces, list) {
279 if (!strcmp(iface->name, name))
286 interface_remove_link(struct interface *iface, struct device *dev)
288 struct device *mdev = iface->main_dev.dev;
290 if (mdev && mdev->hotplug_ops) {
291 mdev->hotplug_ops->del(mdev, dev);
295 device_remove_user(&iface->main_dev);
299 interface_add_link(struct interface *iface, struct device *dev)
301 struct device *mdev = iface->main_dev.dev;
303 if (mdev && mdev->hotplug_ops)
304 return mdev->hotplug_ops->add(mdev, dev);
306 if (iface->main_dev.dev)
307 interface_remove_link(iface, NULL);
309 device_add_user(&iface->main_dev, dev);
315 interface_set_up(struct interface *iface)
317 iface->autostart = true;
319 if (!iface->available) {
320 interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
324 if (iface->state != IFS_DOWN)
327 return __interface_set_up(iface);
331 interface_set_down(struct interface *iface)
334 list_for_each_entry(iface, &interfaces, list)
335 __interface_set_down(iface, false);
337 iface->autostart = false;
338 __interface_set_down(iface, false);
345 interface_start_pending(void)
347 struct interface *iface;
349 list_for_each_entry(iface, &interfaces, list) {
350 if (iface->available && iface->autostart)
351 interface_set_up(iface);