Re: [patch v2.3 3/4] IPVS: make FTP work with full NAT support

[Patrick McHardy <kaber@xxxxxxxxx>]

Simon Horman wrote:
> @@ -219,19 +358,23 @@ static int ip_vs_ftp_out(struct ip_vs_ap
>  
>  		buf_len = strlen(buf);
>  
> +		ct = nf_ct_get(skb, &ctinfo);
> +               ret = nf_nat_mangle_tcp_packet(skb,
> +                                              ct,
> +                                              ctinfo,
> +                                              start-data,
> +                                              end-start,
> +                                              buf,
> +                                              buf_len);
> +
> +               if (ct && ct != &nf_conntrack_untracked)
>   
This does not make sense, you're already using the conntrack above
in the call to nf_nat_mangle_tcp_packet(), so the check should
probably happen before that. You also should be checking the
return value of nf_nat_mangle_tcp_packet() before setting up the
expectation.

> +                       ip_vs_expect_related(skb, ct, n_cp,
> +                                            IPPROTO_TCP, NULL, 0);
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