+ name = uci_lookup_option_string(uci_ctx, s, "name");
+ if (!name)
+ continue;
+
+ type = uci_lookup_option_string(uci_ctx, s, "type");
+ if (type) {
+ if (!strcmp(type, "bridge"))
+ devtype = &bridge_device_type;
+ else if (!strcmp(type, "tunnel"))
+ devtype = &tunnel_device_type;
+ }
+
+ if (!devtype)
+ devtype = &simple_device_type;
+
+ blob_buf_init(&b, 0);
+ uci_to_blob(&b, s, devtype->config_params);
+ device_create(name, devtype, b.head);
+ }
+}
+
+bool
+config_diff(struct blob_attr **tb1, struct blob_attr **tb2,
+ const struct config_param_list *config, unsigned long *diff)
+{
+ bool ret = false;
+ int i;
+
+ for (i = 0; i < config->n_params; i++) {
+ if (!tb1[i] && !tb2[i])
+ continue;
+
+ if (!!tb1[i] != !!tb2[i])
+ goto mark;
+
+ if (blob_len(tb1[i]) != blob_len(tb2[i]))
+ goto mark;
+
+ if (memcmp(tb1[i], tb2[i], blob_raw_len(tb1[i])) != 0)
+ goto mark;
+
+ continue;
+
+mark:
+ ret = true;
+ if (diff)
+ set_bit(diff, i);
+ else
+ return ret;
+ }
+
+ return ret;
+}
+
+
+static bool
+__config_check_equal(struct blob_attr *c1, struct blob_attr *c2,
+ const struct config_param_list *config)
+{
+ struct blob_attr **tb1, **tb2;
+
+ if (!!c1 ^ !!c2)
+ return false;
+
+ if (!c1 && !c2)
+ return true;
+
+ tb1 = alloca(config->n_params * sizeof(struct blob_attr *));
+ blobmsg_parse(config->params, config->n_params, tb1,
+ blob_data(c1), blob_len(c1));
+
+ tb2 = alloca(config->n_params * sizeof(struct blob_attr *));
+ blobmsg_parse(config->params, config->n_params, tb2,
+ blob_data(c2), blob_len(c2));
+
+ return !config_diff(tb1, tb2, config, NULL);
+}
+
+bool
+config_check_equal(struct blob_attr *c1, struct blob_attr *c2,
+ const struct config_param_list *config)
+{
+ int i;
+
+ if (!__config_check_equal(c1, c2, config))
+ return false;
+
+ for (i = 0; i < config->n_next; i++) {
+ if (!__config_check_equal(c1, c2, config->next[i]))
+ return false;
+ }
+
+ return true;
+}
+
+struct blob_attr *
+config_memdup(struct blob_attr *attr)
+{
+ struct blob_attr *ret;
+ int size = blob_pad_len(attr);
+
+ ret = malloc(size);
+ if (!ret)
+ return NULL;
+
+ memcpy(ret, attr, size);
+ return ret;
+}
+
+static struct uci_package *
+config_init_package(const char *config)
+{
+ struct uci_context *ctx = uci_ctx;
+ struct uci_package *p = NULL;
+
+ if (!ctx) {
+ ctx = uci_alloc_context();
+ uci_ctx = ctx;
+
+#ifdef DUMMY_MODE
+ uci_set_confdir(ctx, "./config");
+ uci_set_savedir(ctx, "./tmp");
+#endif
+ } else {
+ p = uci_lookup_package(ctx, config);
+ if (p)
+ uci_unload(ctx, p);
+ }
+
+ if (uci_load(ctx, config, &p))
+ return NULL;
+
+ return p;
+}
+
+static void
+config_init_interfaces(void)
+{
+ struct uci_element *e;
+
+ uci_foreach_element(&uci_network->sections, e) {
+ struct uci_section *s = uci_to_section(e);
+