xfrm: Add user interface for esn and big anti-replay windows

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This patch adds a netlink based user interface to configure
esn and big anti-replay windows. The new netlink attribute
XFRMA_REPLAY_ESN_VAL is used to configure the new implementation.
If the XFRM_STATE_ESN flag is set, we use esn and support for big
anti-replay windows for the configured state. If this flag is not
set we use the new implementation with 32 bit sequence numbers.
A big anti-replay window can be configured in this case anyway.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Steffen Klassert 2011-03-08 00:10:27 +00:00 • committed by David S. Miller

parent 2cd084678f

commit d8647b79c3

2 changed files with 87 additions and 14 deletions

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net/xfrm/xfrm_state.c

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99

net/xfrm/xfrm_user.c

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