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[XFRM] POLICY: Add Kconfig to support sub policy.
Add Kconfig to support sub policy. 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>
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@ -14,6 +14,16 @@ config XFRM_USER
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If unsure, say Y.
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config XFRM_SUB_POLICY
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bool "Transformation sub policy support (EXPERIMENTAL)"
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depends on XFRM && EXPERIMENTAL
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---help---
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Support sub policy for developers. By using sub policy with main
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one, two policies can be applied to the same packet at once.
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Policy which lives shorter time in kernel should be a sub.
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If unsure, say N.
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config NET_KEY
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tristate "PF_KEY sockets"
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select XFRM
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