[IPV6] MIP6: Transformation support mobility header.

Transformation support mobility header.
Based on MIPL2 kernel patch.

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>

2 files changed, 20 insertions, 0 deletions

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 7f1630630dcf..13488e7ba68c 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -546,6 +546,11 @@ u16 xfrm_flowi_sport(struct flowi *fl)
         case IPPROTO_ICMPV6:
                 port = htons(fl->fl_icmp_type);
                 break;
+#ifdef CONFIG_IPV6_MIP6
+        case IPPROTO_MH:
+                port = htons(fl->fl_mh_type);
+                break;
+#endif
         default:
                 port = 0;       /*XXX*/
         }
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 729b4748d6d3..98c2fe449b3f 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -18,6 +18,9 @@
 #include <net/ip.h>
 #include <net/ipv6.h>
 #include <net/ip6_route.h>
+#ifdef CONFIG_IPV6_MIP6
+#include <net/mip6.h>
+#endif
 
 static struct dst_ops xfrm6_dst_ops;
 static struct xfrm_policy_afinfo xfrm6_policy_afinfo;
@@ -270,6 +273,18 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl)
                         fl->proto = nexthdr;
                         return;
 
+#ifdef CONFIG_IPV6_MIP6
+                case IPPROTO_MH:
+                        if (pskb_may_pull(skb, skb->nh.raw + offset + 3 - skb->data)) {
+                                struct ip6_mh *mh;
+                                mh = (struct ip6_mh *)exthdr;
+
+                                fl->fl_mh_type = mh->ip6mh_type;
+                        }
+                        fl->proto = nexthdr;
+                        return;
+#endif
+
                 /* XXX Why are there these headers? */
                 case IPPROTO_AH:
                 case IPPROTO_ESP: