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xfrm: Use separate low and high order bits of the sequence numbers in xfrm_skb_cb

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To support IPsec extended sequence numbers, we split the
output sequence numbers of xfrm_skb_cb in low and high order 32 bits
and we add the high order 32 bits to the input sequence numbers.
All users are updated accordingly.

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>
This commit is contained in:
Steffen Klassert 2011-03-08 00:06:31 +00:00 • committed by David S. Miller
parent 9736acf395
commit 1ce3644ade
7 changed files with 17 additions and 11 deletions
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4
net/xfrm/xfrm_input.c
View file

@ -118,7 +118,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
if (encap_type < 0) {
async = 1;
x = xfrm_input_state(skb);
seq = XFRM_SKB_CB(skb)->seq.input;
seq = XFRM_SKB_CB(skb)->seq.input.low;
goto resume;
}
@ -184,7 +184,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
spin_unlock(&x->lock);
XFRM_SKB_CB(skb)->seq.input = seq;
XFRM_SKB_CB(skb)->seq.input.low = seq;
nexthdr = x->type->input(x, skb);