8 #include "interface-ip.h"
13 struct vlist_tree 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_init(struct interface *iface, const char *name,
216 struct blob_attr *config)
218 struct blob_attr *tb[IFACE_ATTR_MAX];
219 struct blob_attr *cur;
221 const char *proto_name = NULL;
223 strncpy(iface->name, name, sizeof(iface->name) - 1);
224 INIT_LIST_HEAD(&iface->errors);
226 iface->main_dev.cb = interface_cb;
227 iface->l3_dev = &iface->main_dev;
229 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
230 blob_data(config), blob_len(config));
232 if ((cur = tb[IFACE_ATTR_PROTO]))
233 proto_name = blobmsg_data(cur);
235 proto_attach_interface(iface, proto_name);
237 if (iface->proto_handler &&
238 !(iface->proto_handler->flags & PROTO_FLAG_NODEV) &&
239 (cur = tb[IFACE_ATTR_IFNAME])) {
240 dev = device_get(blobmsg_data(cur), true);
242 device_add_user(&iface->main_dev, dev);
245 if ((cur = tb[IFACE_ATTR_AUTO]))
246 iface->autostart = blobmsg_get_bool(cur);
248 iface->autostart = true;
252 interface_add(struct interface *iface, struct blob_attr *config)
254 iface->config = config;
255 vlist_add(&interfaces, &iface->node);
259 interface_remove_link(struct interface *iface, struct device *dev)
261 struct device *mdev = iface->main_dev.dev;
263 if (mdev && mdev->hotplug_ops) {
264 mdev->hotplug_ops->del(mdev, dev);
268 device_remove_user(&iface->main_dev);
272 interface_add_link(struct interface *iface, struct device *dev)
274 struct device *mdev = iface->main_dev.dev;
276 if (mdev && mdev->hotplug_ops)
277 return mdev->hotplug_ops->add(mdev, dev);
279 if (iface->main_dev.dev)
280 interface_remove_link(iface, NULL);
282 device_add_user(&iface->main_dev, dev);
288 interface_set_up(struct interface *iface)
290 iface->autostart = true;
292 if (!iface->available) {
293 interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
297 if (iface->state != IFS_DOWN)
300 return __interface_set_up(iface);
304 interface_set_down(struct interface *iface)
307 vlist_for_each_element(&interfaces, iface, node)
308 __interface_set_down(iface, false);
310 iface->autostart = false;
311 __interface_set_down(iface, false);
318 interface_start_pending(void)
320 struct interface *iface;
322 vlist_for_each_element(&interfaces, iface, node) {
323 if (iface->available && iface->autostart)
324 interface_set_up(iface);
329 interface_update(struct vlist_tree *tree, struct vlist_node *node_new,
330 struct vlist_node *node_old)
332 struct interface *if_old = container_of(node_old, struct interface, node);
333 struct interface *if_new = container_of(node_new, struct interface, node);
336 free(if_old->config);
337 netifd_ubus_remove_interface(if_old);
338 if (if_old->proto->free)
339 if_old->proto->free(if_old->proto);
344 proto_init_interface(if_new, if_new->config);
345 interface_ip_init(if_new);
346 netifd_ubus_add_interface(if_new);
352 interface_init_list(void)
354 vlist_init(&interfaces, avl_strcmp, interface_update,
355 struct interface, node, name);