[TUNTAP]: Allow setting the linktype of the tap device from userspace
Currently tun/tap only supports the EN10MB ARP type. For use with
wireless and other networking types it should be possible to set the
ARP type via an ioctl.
Patch v2: Included check that the tap interface is down before changing the
link type out from underneath it
Signed-off-by: Mike Kershaw <dragorn@kismetwireless.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h
index 096a85a..88aef7b 100644
--- a/include/linux/if_tun.h
+++ b/include/linux/if_tun.h
@@ -77,6 +77,7 @@
#define TUNSETIFF _IOW('T', 202, int)
#define TUNSETPERSIST _IOW('T', 203, int)
#define TUNSETOWNER _IOW('T', 204, int)
+#define TUNSETLINK _IOW('T', 205, int)
/* TUNSETIFF ifr flags */
#define IFF_TUN 0x0001