[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>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/net/mip6.h b/include/net/mip6.h
index 42b65bace122..fd43178faace 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);