batman-adv: detect clients connected through a 802.11 device
Clients connected through a 802.11 device are now marked with the
TT_CLIENT_WIFI flag. This flag is also advertised with the tt
announcement.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 0d73e1e9..bf91e4d 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -681,6 +681,36 @@
return NET_RX_DROP;
}
+/* This function returns true if the interface represented by ifindex is a
+ * 802.11 wireless device */
+bool is_wifi_iface(int ifindex)
+{
+ struct net_device *net_device = NULL;
+ bool ret = false;
+
+ if (ifindex == NULL_IFINDEX)
+ goto out;
+
+ net_device = dev_get_by_index(&init_net, ifindex);
+ if (!net_device)
+ goto out;
+
+#ifdef CONFIG_WIRELESS_EXT
+ /* pre-cfg80211 drivers have to implement WEXT, so it is possible to
+ * check for wireless_handlers != NULL */
+ if (net_device->wireless_handlers)
+ ret = true;
+ else
+#endif
+ /* cfg80211 drivers have to set ieee80211_ptr */
+ if (net_device->ieee80211_ptr)
+ ret = true;
+out:
+ if (net_device)
+ dev_put(net_device);
+ return ret;
+}
+
struct notifier_block hard_if_notifier = {
.notifier_call = hard_if_event,
};