/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/* iptables module for matching the ECN header in IPv4 and TCP header
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*
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* (C) 2002 Harald Welte <laforge@gnumonks.org>
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*
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* This software is distributed under GNU GPL v2, 1991
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*
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* ipt_ecn.h,v 1.4 2002/08/05 19:39:00 laforge Exp
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*/
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#ifndef _XT_ECN_H
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#define _XT_ECN_H
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#include <linux/types.h>
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#include <linux/netfilter/xt_dscp.h>
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#define XT_ECN_IP_MASK (~XT_DSCP_MASK)
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#define XT_ECN_OP_MATCH_IP 0x01
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#define XT_ECN_OP_MATCH_ECE 0x10
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#define XT_ECN_OP_MATCH_CWR 0x20
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#define XT_ECN_OP_MATCH_MASK 0xce
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/* match info */
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struct xt_ecn_info {
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__u8 operation;
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__u8 invert;
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__u8 ip_ect;
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union {
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struct {
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__u8 ect;
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} tcp;
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} proto;
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};
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#endif /* _XT_ECN_H */
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