From: Gao feng <gaofeng@cn.fujitsu.com>
To: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Cc: netfilter-devel@vger.kernel.org, xiaosuo@gmail.com
Subject: Re: Question about tcp reopen in tcp_in_window
Date: Thu, 17 Nov 2011 17:05:05 +0800 [thread overview]
Message-ID: <4EC4CE41.2060003@cn.fujitsu.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1111170904040.27634@blackhole.kfki.hu>
于 2011年11月17日 16:07, Jozsef Kadlecsik 写道:
> No, the connection entry won't be destroyed by nf_ct_kill. Why do you
> think so?
>
Thanks Jozsef Kadlecsik.
nf_ct will be destroy when tcp_packet return -NF_REPEAT to nf_conntrack_in.
nf_conntrack_in will call nf_conntrack_put to destroy nf_conn
nf_conntrack_in:
ret = l4proto->packet(ct, skb, dataoff, ctinfo, pf, hooknum);
if (ret <= 0) {
/* Invalid: inverse of the return code tells
* the netfilter core what to do */
pr_debug("nf_conntrack_in: Can't track with proto module\n");
nf_conntrack_put(skb->nfct);
skb->nfct = NULL;
NF_CT_STAT_INC_ATOMIC(net, invalid);
if (ret == -NF_DROP)
NF_CT_STAT_INC_ATOMIC(net, drop);
return -ret;
}
I am wrong?
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next prev parent reply other threads:[~2011-11-17 9:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-17 6:52 Question about tcp reopen in tcp_in_window Gao feng
2011-11-17 8:07 ` Jozsef Kadlecsik
2011-11-17 9:05 ` Gao feng [this message]
2011-11-17 9:41 ` Jozsef Kadlecsik
2011-11-17 12:12 ` Gao feng
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