Reviewed-by: Arturo Borrero Gonzalez <arturo.borrero.glez@xxxxxxxxx>
2016-06-29 20:48 GMT+02:00 <rodanber@xxxxxxxxx>:
>
> From: Roberto García <rodanber@xxxxxxxxx>
>
> Add translation of the ecn match to nftables.
>
> Examples:
> # iptables-translate -A INPUT -m ecn --ecn-ip-ect 0
> nft add rule ip filter INPUT ip ecn not-ect counter
>
> # iptables-translate -A INPUT -m ecn --ecn-ip-ect 1
> nft add rule ip filter INPUT ip ecn ect1 counter
>
> # iptables-translate -A INPUT -m ecn --ecn-ip-ect 2
> nft add rule ip filter INPUT ip ecn ect0 counter
>
> # iptables-translate -A INPUT -m ecn --ecn-ip-ect 3
> nft add rule ip filter INPUT ip ecn ce counter
>
> # iptables-translate -A INPUT -m ecn ! --ecn-ip-ect 0
> nft add rule ip filter INPUT ip ecn != not-ect counter
>
> # iptables-translate -A INPUT -m ecn ! --ecn-ip-ect 1
> nft add rule ip filter INPUT ip ecn != ect1 counter
>
> # iptables-translate -A INPUT -m ecn ! --ecn-ip-ect 2
> nft add rule ip filter INPUT ip ecn != ect0 counter
>
> # iptables-translate -A INPUT -m ecn ! --ecn-ip-ect 3
> nft add rule ip filter INPUT ip ecn != ce counter
>
> Signed-off-by: Roberto García <rodanber@xxxxxxxxx>
> ---
> extensions/libxt_ecn.c | 31 +++++++++++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
>
> diff --git a/extensions/libxt_ecn.c b/extensions/libxt_ecn.c
> index 286782a..2856a31 100644
> --- a/extensions/libxt_ecn.c
> +++ b/extensions/libxt_ecn.c
> @@ -118,6 +118,36 @@ static void ecn_save(const void *ip, const struct xt_entry_match *match)
> }
> }
>
> +static int ecn_xlate(const void *ip, const struct xt_entry_match *match,
> + struct xt_xlate *xl, int numeric)
> +{
> + const struct xt_ecn_info *einfo =
> + (const struct xt_ecn_info *)match->data;
> +
> + if (!(einfo->operation & XT_ECN_OP_MATCH_IP))
> + return 0;
> +
> + xt_xlate_add(xl, "ip ecn ");
> + if (einfo->invert)
> + xt_xlate_add(xl,"!= ");
> +
> + switch (einfo->ip_ect) {
> + case 0:
> + xt_xlate_add(xl, "not-ect ");
> + break;
> + case 1:
> + xt_xlate_add(xl, "ect1 ");
> + break;
> + case 2:
> + xt_xlate_add(xl, "ect0 ");
> + break;
> + case 3:
> + xt_xlate_add(xl, "ce ");
> + break;
> + }
> + return 1;
> +}
> +
> static struct xtables_match ecn_mt_reg = {
> .name = "ecn",
> .version = XTABLES_VERSION,
> @@ -130,6 +160,7 @@ static struct xtables_match ecn_mt_reg = {
> .x6_parse = ecn_parse,
> .x6_fcheck = ecn_check,
> .x6_options = ecn_opts,
> + .xlate = ecn_xlate,
> };
>
> void _init(void)
> --
> 2.8.0
>
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