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_do_free(struct interface *iface)
172 if (iface->main_dev.dev)
173 device_remove_user(&iface->main_dev);
174 interface_set_proto_state(iface, NULL);
176 netifd_ubus_remove_interface(iface);
181 interface_handle_config_change(struct interface *iface)
183 switch(iface->config_state) {
187 if (iface->autostart)
188 interface_set_up(iface);
191 interface_do_free(iface);
197 interface_proto_cb(struct interface_proto_state *state, enum interface_proto_event ev)
199 struct interface *iface = state->iface;
203 if (iface->state != IFS_SETUP)
206 iface->state = IFS_UP;
207 interface_event(iface, IFEV_UP);
210 if (iface->state == IFS_DOWN)
213 mark_interface_down(iface);
214 interface_handle_config_change(iface);
216 case IFPEV_LINK_LOST:
217 if (iface->state != IFS_UP)
220 iface->state = IFS_SETUP;
221 interface_event(iface, IFEV_DOWN);
226 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state)
229 iface->proto->free(iface->proto);
232 iface->state = IFS_DOWN;
233 iface->proto = state;
237 state->proto_event = interface_proto_cb;
238 state->iface = iface;
242 interface_init(struct interface *iface, const char *name,
243 struct blob_attr *config)
245 struct blob_attr *tb[IFACE_ATTR_MAX];
246 struct blob_attr *cur;
247 const char *proto_name = NULL;
249 strncpy(iface->name, name, sizeof(iface->name) - 1);
250 INIT_LIST_HEAD(&iface->errors);
252 iface->main_dev.cb = interface_cb;
253 iface->l3_dev = &iface->main_dev;
255 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
256 blob_data(config), blob_len(config));
258 if ((cur = tb[IFACE_ATTR_PROTO]))
259 proto_name = blobmsg_data(cur);
261 proto_attach_interface(iface, proto_name);
263 if ((cur = tb[IFACE_ATTR_AUTO]))
264 iface->autostart = blobmsg_get_bool(cur);
266 iface->autostart = true;
267 iface->config_autostart = iface->autostart;
271 interface_add(struct interface *iface, struct blob_attr *config)
273 struct blob_attr *tb[IFACE_ATTR_MAX];
274 struct blob_attr *cur;
277 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
278 blob_data(config), blob_len(config));
280 if ((cur = tb[IFACE_ATTR_IFNAME])) {
281 iface->ifname = blobmsg_data(cur);
283 if (iface->proto_handler &&
284 !(iface->proto_handler->flags & PROTO_FLAG_NODEV)) {
285 dev = device_get(iface->ifname, true);
287 device_add_user(&iface->main_dev, dev);
291 iface->config = config;
292 vlist_add(&interfaces, &iface->node);
296 interface_remove_link(struct interface *iface, struct device *dev)
298 struct device *mdev = iface->main_dev.dev;
300 if (mdev && mdev->hotplug_ops) {
301 mdev->hotplug_ops->del(mdev, dev);
305 device_remove_user(&iface->main_dev);
309 interface_add_link(struct interface *iface, struct device *dev)
311 struct device *mdev = iface->main_dev.dev;
313 if (mdev && mdev->hotplug_ops)
314 return mdev->hotplug_ops->add(mdev, dev);
316 if (iface->main_dev.dev)
317 interface_remove_link(iface, NULL);
319 device_add_user(&iface->main_dev, dev);
325 interface_set_up(struct interface *iface)
327 iface->autostart = true;
329 if (!iface->available) {
330 interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
334 if (iface->state != IFS_DOWN)
337 return __interface_set_up(iface);
341 interface_set_down(struct interface *iface)
344 vlist_for_each_element(&interfaces, iface, node)
345 __interface_set_down(iface, false);
347 iface->autostart = false;
348 __interface_set_down(iface, false);
355 interface_start_pending(void)
357 struct interface *iface;
359 vlist_for_each_element(&interfaces, iface, node) {
360 if (iface->available && iface->autostart)
361 interface_set_up(iface);
366 set_config_state(struct interface *iface, enum interface_config_state s)
368 iface->config_state = s;
369 if (iface->state == IFS_DOWN)
370 interface_handle_config_change(iface);
372 interface_set_down(iface);
376 interface_change_config(struct interface *if_old, struct interface *if_new)
378 struct blob_attr *old_config = if_old->config;
380 if_old->config = if_new->config;
381 if (!if_old->config_autostart && if_new->config_autostart)
382 if_old->autostart = true;
384 if_old->config_autostart = if_new->config_autostart;
385 if_old->ifname = if_new->ifname;
387 set_config_state(if_old, IFC_RELOAD);
393 interface_update(struct vlist_tree *tree, struct vlist_node *node_new,
394 struct vlist_node *node_old)
396 struct interface *if_old = container_of(node_old, struct interface, node);
397 struct interface *if_new = container_of(node_new, struct interface, node);
399 if (node_old && node_new)
400 interface_change_config(if_old, if_new);
402 set_config_state(if_old, IFC_REMOVE);
404 proto_init_interface(if_new, if_new->config);
405 interface_ip_init(if_new);
406 netifd_ubus_add_interface(if_new);
412 interface_init_list(void)
414 vlist_init(&interfaces, avl_strcmp, interface_update,
415 struct interface, node, name);
416 interfaces.keep_old = true;
417 interfaces.no_delete = true;