From: Masahide NAKAMURA <[EMAIL PROTECTED]>

Support Mobile IPv6 extension headers sorting for two transformation policies.
Mobile IPv6 extension headers should be placed after IPsec
transport mode, but before transport AH when outbound.

Signed-off-by: Masahide NAKAMURA <[EMAIL PROTECTED]>
Signed-off-by: YOSHIFUJI Hideaki <[EMAIL PROTECTED]>
---
 net/ipv6/xfrm6_state.c |   28 ++++++++++++++++++++++++++--
 1 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index e0b8f3c..6269584 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -173,7 +173,19 @@ __xfrm6_state_sort(struct xfrm_state **d
        if (j == n)
                goto end;
 
-       /* XXX: Rule 2: select MIPv6 RO or inbound trigger */
+       /* Rule 2: select MIPv6 RO or inbound trigger */
+#ifdef CONFIG_IPV6_MIP6
+       for (i = 0; i < n; i++) {
+               if (src[i] &&
+                   (src[i]->props.mode == XFRM_MODE_ROUTEOPTIMIZATION ||
+                    src[i]->props.mode == XFRM_MODE_IN_TRIGGER)) {
+                       dst[j++] = src[i];
+                       src[i] = NULL;
+               }
+       }
+       if (j == n)
+               goto end;
+#endif
 
        /* Rule 3: select IPsec transport AH */
        for (i = 0; i < n; i++) {
@@ -226,7 +238,19 @@ __xfrm6_tmpl_sort(struct xfrm_tmpl **dst
        if (j == n)
                goto end;
 
-       /* XXX: Rule 2: select MIPv6 RO or inbound trigger */
+       /* Rule 2: select MIPv6 RO or inbound trigger */
+#ifdef CONFIG_IPV6_MIP6
+       for (i = 0; i < n; i++) {
+               if (src[i] &&
+                   (src[i]->mode == XFRM_MODE_ROUTEOPTIMIZATION ||
+                    src[i]->mode == XFRM_MODE_IN_TRIGGER)) {
+                       dst[j++] = src[i];
+                       src[i] = NULL;
+               }
+       }
+       if (j == n)
+               goto end;
+#endif
 
        /* Rule 3: select IPsec tunnel */
        for (i = 0; i < n; i++) {
-- 
1.4.0

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