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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-10-17 21:30:07 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-10-17 21:30:07 -0700 |
| commit | 7aa68cb90638ccc36559a936814e4c089892b3d9 (patch) | |
| tree | f31876becacf83572c9f9f417194126d65e3d1cc /net/ipv6/ah6.c | |
| parent | 33b5ecb8f64706d1ed472dcb44162ab3a7345724 (diff) | |
| download | lwn-7aa68cb90638ccc36559a936814e4c089892b3d9.tar.gz lwn-7aa68cb90638ccc36559a936814e4c089892b3d9.zip | |
[IPSEC]: Move ip_summed zapping out of xfrm6_rcv_spi
Not every transform needs to zap ip_summed. For example, a pure tunnel
mode encapsulation does not affect the hardware checksum at all. In fact,
every algorithm (that needs this) other than AH6 already does its own
ip_summed zapping.
This patch moves the zapping into AH6 which is in line with what IPv4 does.
Possible future optimisation: Checksum the data as we copy them in IPComp.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ah6.c')
| -rw-r--r-- | net/ipv6/ah6.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c index f9f689162692..a8221d1da0ff 100644 --- a/net/ipv6/ah6.c +++ b/net/ipv6/ah6.c @@ -344,6 +344,8 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb) pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) goto out; + skb->ip_summed = CHECKSUM_NONE; + hdr_len = skb->data - skb_network_header(skb); ah = (struct ip_auth_hdr *)skb->data; ahp = x->data; |