/* iptables module for matching the ECN header in IPv4 and TCP header

 *

 * (C) 2002 Harald Welte <laforge@netfilter.org>

 *

 * This software is distributed under GNU GPL v2, 1991

*/

#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 */