1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (C)2003-2006 Helsinki University of Technology 4 * Copyright (C)2003-2006 USAGI/WIDE Project 5 */ 6 /* 7 * Authors: 8 * Noriaki TAKAMIYA @USAGI 9 * Masahide NAKAMURA @USAGI 10 * YOSHIFUJI Hideaki @USAGI 11 */ 12 #ifndef _NET_MIP6_H 13 #define _NET_MIP6_H 14 15 #include <linux/skbuff.h> 16 #include <net/sock.h> 17 18 /* 19 * Mobility Header 20 */ 21 struct ip6_mh { 22 __u8 ip6mh_proto; 23 __u8 ip6mh_hdrlen; 24 __u8 ip6mh_type; 25 __u8 ip6mh_reserved; 26 __u16 ip6mh_cksum; 27 /* Followed by type specific messages */ 28 __u8 data[]; 29 } __packed; 30 31 #define IP6_MH_TYPE_BRR 0 /* Binding Refresh Request */ 32 #define IP6_MH_TYPE_HOTI 1 /* HOTI Message */ 33 #define IP6_MH_TYPE_COTI 2 /* COTI Message */ 34 #define IP6_MH_TYPE_HOT 3 /* HOT Message */ 35 #define IP6_MH_TYPE_COT 4 /* COT Message */ 36 #define IP6_MH_TYPE_BU 5 /* Binding Update */ 37 #define IP6_MH_TYPE_BACK 6 /* Binding ACK */ 38 #define IP6_MH_TYPE_BERROR 7 /* Binding Error */ 39 #define IP6_MH_TYPE_MAX IP6_MH_TYPE_BERROR 40 41 #endif 42