+static int nl80211_probe_mesh_link(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct station_info sinfo = {};
+ const u8 *buf;
+ size_t len;
+ u8 *dest;
+ int err;
+
+ if (!rdev->ops->probe_mesh_link || !rdev->ops->get_station)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL80211_ATTR_MAC] ||
+ !info->attrs[NL80211_ATTR_FRAME]) {
+ GENL_SET_ERR_MSG(info, "Frame or MAC missing");
+ return -EINVAL;
+ }
+
+ if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
+ return -EOPNOTSUPP;
+
+ dest = nla_data(info->attrs[NL80211_ATTR_MAC]);
+ buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
+ len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
+
+ if (len < sizeof(struct ethhdr))
+ return -EINVAL;
+
+ if (!ether_addr_equal(buf, dest) || is_multicast_ether_addr(buf) ||
+ !ether_addr_equal(buf + ETH_ALEN, dev->dev_addr))
+ return -EINVAL;
+
+ err = rdev_get_station(rdev, dev, dest, &sinfo);
+ if (err)
+ return err;
+
+ return rdev_probe_mesh_link(rdev, dev, dest, buf, len);
+}
+