Add CONFIG_XFRM_MIGRATE option which makes it possible for for user
application to send or receive MIGRATE message to/from netlink socket.

Signed-off-by: Shinta Sugimoto <[EMAIL PROTECTED]>
Signed-off-by: Masahide NAKAMURA <[EMAIL PROTECTED]>
Signed-off-by: YOSHIFUJI Hideaki <[EMAIL PROTECTED]>
---
 net/xfrm/Kconfig |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index 0faab63..d385a78 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -24,6 +24,17 @@ config XFRM_SUB_POLICY
 
          If unsure, say N.
 
+config XFRM_MIGRATE
+       bool "Transformation migrate database (EXPERIMENTAL)"
+       depends on XFRM && EXPERIMENTAL
+       ---help---
+         A feature to update locator(s) of a given IPsec security
+         association dynamically.  This feature is required, for
+         instance, in a Mobile IPv6 environment with IPsec configuration
+         where mobile nodes change their attachment point to the Internet.
+
+         If unsure, say N.
+
 config NET_KEY
        tristate "PF_KEY sockets"
        select XFRM
-- 
1.4.2


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