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 device_release(&iface->main_dev);
90 iface->state = IFS_DOWN;
94 __interface_set_up(struct interface *iface)
98 if (iface->state != IFS_DOWN)
101 ret = device_claim(&iface->main_dev);
105 iface->state = IFS_SETUP;
106 ret = interface_proto_event(iface->proto, PROTO_CMD_SETUP, false);
108 mark_interface_down(iface);
117 __interface_set_down(struct interface *iface, bool force)
119 clear_interface_errors(iface);
121 if (iface->state == IFS_DOWN ||
122 iface->state == IFS_TEARDOWN)
125 iface->state = IFS_TEARDOWN;
126 interface_event(iface, IFEV_DOWN);
127 interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, force);
131 interface_cb(struct device_user *dep, enum device_event ev)
133 struct interface *iface;
136 iface = container_of(dep, struct interface, main_dev);
141 case DEV_EVENT_REMOVE:
148 if (iface->available == new_state)
151 iface->available = new_state;
154 if (iface->autostart && !config_init)
155 interface_set_up(iface);
157 __interface_set_down(iface, true);
161 interface_proto_cb(struct interface_proto_state *state, enum interface_proto_event ev)
163 struct interface *iface = state->iface;
167 if (iface->state != IFS_SETUP)
170 iface->state = IFS_UP;
171 interface_event(iface, IFEV_UP);
174 if (iface->state == IFS_DOWN)
177 mark_interface_down(iface);
182 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state)
185 interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, true);
186 iface->proto->free(iface->proto);
189 iface->state = IFS_DOWN;
190 iface->proto = state;
194 state->proto_event = interface_proto_cb;
195 state->iface = iface;
199 interface_alloc(const char *name, struct blob_attr *attr)
201 struct interface *iface;
202 struct blob_attr *tb[IFACE_ATTR_MAX];
203 struct blob_attr *cur;
205 const char *proto_name = NULL;
207 iface = interface_get(name);
211 iface = calloc(1, sizeof(*iface));
212 iface->main_dev.cb = interface_cb;
213 iface->l3_iface = &iface->main_dev;
214 strncpy(iface->name, name, sizeof(iface->name) - 1);
215 list_add_tail(&iface->list, &interfaces);
216 INIT_LIST_HEAD(&iface->errors);
218 interface_ip_init(iface);
220 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
221 blob_data(attr), blob_len(attr));
223 if ((cur = tb[IFACE_ATTR_PROTO]))
224 proto_name = blobmsg_data(cur);
226 proto_attach_interface(iface, proto_name);
228 if ((cur = tb[IFACE_ATTR_IFNAME])) {
229 dev = device_get(blobmsg_data(cur), true);
231 device_add_user(&iface->main_dev, dev);
234 if ((cur = tb[IFACE_ATTR_AUTO]))
235 iface->autostart = blobmsg_get_bool(cur);
237 iface->autostart = true;
239 netifd_ubus_add_interface(iface);
240 config_set_state(&iface->config, attr);
246 interface_free(struct interface *iface)
248 netifd_ubus_remove_interface(iface);
249 list_del(&iface->list);
250 if (iface->proto->free)
251 iface->proto->free(iface->proto);
256 interface_get(const char *name)
258 struct interface *iface;
260 list_for_each_entry(iface, &interfaces, list) {
261 if (!strcmp(iface->name, name))
268 interface_remove_link(struct interface *iface, struct device *dev)
270 struct device *mdev = iface->main_dev.dev;
272 if (mdev && mdev->hotplug_ops) {
273 mdev->hotplug_ops->del(mdev, dev);
277 device_remove_user(&iface->main_dev);
281 interface_add_link(struct interface *iface, struct device *dev)
283 struct device *mdev = iface->main_dev.dev;
285 if (mdev && mdev->hotplug_ops)
286 return mdev->hotplug_ops->add(mdev, dev);
288 if (iface->main_dev.dev)
289 interface_remove_link(iface, NULL);
291 device_add_user(&iface->main_dev, dev);
297 interface_set_up(struct interface *iface)
299 iface->autostart = true;
301 if (!iface->available) {
302 interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
306 if (iface->state != IFS_DOWN)
309 return __interface_set_up(iface);
313 interface_set_down(struct interface *iface)
315 iface->autostart = false;
316 __interface_set_down(iface, false);
322 interface_start_pending(void)
324 struct interface *iface;
326 list_for_each_entry(iface, &interfaces, list) {
327 if (iface->available && iface->autostart)
328 interface_set_up(iface);