[IPV6] MIP6: Add Mobility header definition.
Add Mobility header definition for Mobile IPv6.
Based on MIPL2 kernel patch.
This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi>
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/in6.h b/include/linux/in6.h
index 086ec2a..d776829 100644
--- a/include/linux/in6.h
+++ b/include/linux/in6.h
@@ -134,6 +134,7 @@
#define IPPROTO_ICMPV6 58 /* ICMPv6 */
#define IPPROTO_NONE 59 /* IPv6 no next header */
#define IPPROTO_DSTOPTS 60 /* IPv6 destination options */
+#define IPPROTO_MH 135 /* IPv6 mobility header */
/*
* IPv6 TLV options.
diff --git a/include/net/flow.h b/include/net/flow.h
index 21d988b..e052291 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -72,12 +72,21 @@
} dnports;
__u32 spi;
+
+#ifdef CONFIG_IPV6_MIP6
+ struct {
+ __u8 type;
+ } mht;
+#endif
} uli_u;
#define fl_ip_sport uli_u.ports.sport
#define fl_ip_dport uli_u.ports.dport
#define fl_icmp_type uli_u.icmpt.type
#define fl_icmp_code uli_u.icmpt.code
#define fl_ipsec_spi uli_u.spi
+#ifdef CONFIG_IPV6_MIP6
+#define fl_mh_type uli_u.mht.type
+#endif
__u32 secid; /* used by xfrm; see secid.txt */
} __attribute__((__aligned__(BITS_PER_LONG/8)));
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 8e6ec60..72bf47b 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -40,6 +40,7 @@
#define NEXTHDR_ICMP 58 /* ICMP for IPv6. */
#define NEXTHDR_NONE 59 /* No next header */
#define NEXTHDR_DEST 60 /* Destination options header. */
+#define NEXTHDR_MOBILITY 135 /* Mobility header. */
#define NEXTHDR_MAX 255
diff --git a/include/net/mip6.h b/include/net/mip6.h
index 42b65ba..fd43178 100644
--- a/include/net/mip6.h
+++ b/include/net/mip6.h
@@ -28,6 +28,29 @@
#define MIP6_OPT_PAD_1 0
#define MIP6_OPT_PAD_N 1
+/*
+ * Mobility Header
+ */
+struct ip6_mh {
+ __u8 ip6mh_proto;
+ __u8 ip6mh_hdrlen;
+ __u8 ip6mh_type;
+ __u8 ip6mh_reserved;
+ __u16 ip6mh_cksum;
+ /* Followed by type specific messages */
+ __u8 data[0];
+} __attribute__ ((__packed__));
+
+#define IP6_MH_TYPE_BRR 0 /* Binding Refresh Request */
+#define IP6_MH_TYPE_HOTI 1 /* HOTI Message */
+#define IP6_MH_TYPE_COTI 2 /* COTI Message */
+#define IP6_MH_TYPE_HOT 3 /* HOT Message */
+#define IP6_MH_TYPE_COT 4 /* COT Message */
+#define IP6_MH_TYPE_BU 5 /* Binding Update */
+#define IP6_MH_TYPE_BACK 6 /* Binding ACK */
+#define IP6_MH_TYPE_BERROR 7 /* Binding Error */
+#define IP6_MH_TYPE_MAX IP6_MH_TYPE_BERROR
+
extern int mip6_init(void);
extern void mip6_fini(void);