+struct tp_control_hdr {
+ u_short cmsg_len;
+ u_short cmsg_type; /* TPOPT_[CONN,DISC,CFRM]_DATA */
+ u_short cmsg_level; /* e.g. SOL_SOCKET, _TRANSPORT, etc. */
+/* u_char cmsg_data[msg_len - sizeof(tp_control_hdr)]; */
+};
+/*
+ * These sockopt level definitions should be considered for socket.h
+ */
+#define SOL_TRANSPORT 0xfffe
+#define SOL_NETWORK 0xfffd
+