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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2011-03-08 00:06:31 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-13 20:22:28 -0700 |
| commit | 1ce3644ade9c865c755bf0f6a4e109b7bb6eb60f (patch) | |
| tree | 14ce0727337a43d1fa28432d01189d1a5f4269c7 /net/xfrm | |
| parent | 9736acf395d3608583a7be70f62800b494fa103c (diff) | |
| download | linux-1ce3644ade9c865c755bf0f6a4e109b7bb6eb60f.tar.gz linux-1ce3644ade9c865c755bf0f6a4e109b7bb6eb60f.tar.bz2 linux-1ce3644ade9c865c755bf0f6a4e109b7bb6eb60f.zip | |
xfrm: Use separate low and high order bits of the sequence numbers in xfrm_skb_cb
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>
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/xfrm_input.c | 4 | ||||
| -rw-r--r-- | net/xfrm/xfrm_output.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 45f1c98d4fce..b173b7fdc433 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -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); diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c index 64f2ae1fdc15..4b63776a0264 100644 --- a/net/xfrm/xfrm_output.c +++ b/net/xfrm/xfrm_output.c @@ -68,7 +68,7 @@ static int xfrm_output_one(struct sk_buff *skb, int err) } if (x->type->flags & XFRM_TYPE_REPLAY_PROT) { - XFRM_SKB_CB(skb)->seq.output = ++x->replay.oseq; + XFRM_SKB_CB(skb)->seq.output.low = ++x->replay.oseq; if (unlikely(x->replay.oseq == 0)) { XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATESEQERROR); x->replay.oseq--; |