Re: Question about tcp reopen in tcp_in_window

[Gao feng <gaofeng@cn.fujitsu.com>]

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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