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Date: Tue, 30 Aug 2011 16:41:20 +0200 From: kaber@...sh.net To: davem@...emloft.net Cc: netfilter-devel@...r.kernel.org, netdev@...r.kernel.org Subject: [PATCH 7/8] netfilter: nf_ct_tcp: wrong multiplication of TCPOLEN_TSTAMP_ALIGNED in tcp_sack skips fastpath From: Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu> The wrong multiplication of TCPOLEN_TSTAMP_ALIGNED by 4 skips the fast path for the timestamp-only option. Bug reported by Michael M. Builov (netfilter bugzilla #738). Signed-off-by: Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@...sh.net> --- net/netfilter/nf_conntrack_proto_tcp.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index afc4ab7..8235b86 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -447,7 +447,7 @@ static void tcp_sack(const struct sk_buff *skb, unsigned int dataoff, BUG_ON(ptr == NULL); /* Fast path for timestamp-only option */ - if (length == TCPOLEN_TSTAMP_ALIGNED*4 + if (length == TCPOLEN_TSTAMP_ALIGNED && *(__be32 *)ptr == htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) | (TCPOPT_TIMESTAMP << 8) -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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