+static void
+device_add_extra_vlan(struct device *dev, const char *val)
+{
+ unsigned long cur_start, cur_end;
+ char *sep;
+
+ cur_start = strtoul(val, &sep, 0);
+ cur_end = cur_start;
+
+ if (*sep == '-')
+ cur_end = strtoul(sep + 1, &sep, 0);
+ if (*sep || cur_end < cur_start)
+ return;
+
+ dev->extra_vlan[dev->n_extra_vlan].start = cur_start;
+ dev->extra_vlan[dev->n_extra_vlan].end = cur_end;
+ dev->n_extra_vlan++;
+}
+
+static void
+device_set_extra_vlans(struct device *dev, struct blob_attr *data)
+{
+ struct blob_attr *cur;
+ int n_vlans;
+ size_t rem;
+
+ dev->n_extra_vlan = 0;
+ if (!data)
+ return;
+
+ n_vlans = blobmsg_check_array(data, BLOBMSG_TYPE_STRING);
+ if (n_vlans < 1)
+ return;
+
+ dev->extra_vlan = realloc(dev->extra_vlan, n_vlans * sizeof(*dev->extra_vlan));
+ blobmsg_for_each_attr(cur, data, rem)
+ device_add_extra_vlan(dev, blobmsg_get_string(cur));
+}
+