[IPSEC]: Added xfrm_decode_session_reverse and xfrmX_policy_check_reverse

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RFC 4301 requires us to relookup ICMP traffic that does not match any
policies using the reverse of its payload.  This patch adds the functions
xfrm_decode_session_reverse and xfrmX_policy_check_reverse so we can get
the reverse flow to perform such a lookup.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Herbert Xu 2007-12-12 10:44:16 -08:00 • committed by David S. Miller

parent 815f4e57e9

commit d5422efe68

5 changed files with 80 additions and 21 deletions

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include/linux/xfrm.h

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