1 files changed, 17 insertions, 0 deletions

diff --git a/include/linux/l2tp.h b/include/linux/l2tp.h
index 16b834741d16..7eab668f60f3 100644
--- a/include/linux/l2tp.h
+++ b/include/linux/l2tp.h
@@ -11,6 +11,7 @@
 #include <linux/socket.h>
 #ifdef __KERNEL__
 #include <linux/in.h>
+#include <linux/in6.h>
 #else
 #include <netinet/in.h>
 #endif
@@ -39,6 +40,22 @@ struct sockaddr_l2tpip {
                               sizeof(__u32)];
 };
 
+/**
+ * struct sockaddr_l2tpip6 - the sockaddr structure for L2TP-over-IPv6 sockets
+ * @l2tp_family:  address family number AF_L2TPIP.
+ * @l2tp_addr:    protocol specific address information
+ * @l2tp_conn_id: connection id of tunnel
+ */
+struct sockaddr_l2tpip6 {
+        /* The first fields must match struct sockaddr_in6 */
+        __kernel_sa_family_t l2tp_family; /* AF_INET6 */
+        __be16          l2tp_unused;    /* INET port number (unused) */
+        __be32          l2tp_flowinfo;  /* IPv6 flow information */
+        struct in6_addr l2tp_addr;      /* IPv6 address */
+        __u32           l2tp_scope_id;  /* scope id (new in RFC2553) */
+        __u32           l2tp_conn_id;   /* Connection ID of tunnel */
+};
+
 /*****************************************************************************
  *  NETLINK_GENERIC netlink family.
  *****************************************************************************/