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