root/include/linux/netfilter_ipv4/ipt_ecn.h

INCLUDED FROM

/* iptables module for matching the ECN header in IPv4 and TCP header
 *
 * (C) 2002 Harald Welte <laforge@gnumonks.org>
 *
 * This software is distributed under GNU GPL v2, 1991
 * 
 * ipt_ecn.h,v 1.4 2002/08/05 19:39:00 laforge Exp
*/
#ifndef _IPT_ECN_H
#define _IPT_ECN_H
#include <linux/netfilter_ipv4/ipt_dscp.h>

#define IPT_ECN_IP_MASK (~IPT_DSCP_MASK)

#define IPT_ECN_OP_MATCH_IP     0x01
#define IPT_ECN_OP_MATCH_ECE    0x10
#define IPT_ECN_OP_MATCH_CWR    0x20

#define IPT_ECN_OP_MATCH_MASK   0xce

/* match info */
struct ipt_ecn_info {
        u_int8_t operation;
        u_int8_t invert;
        u_int8_t ip_ect;
        union {
                struct {
                        u_int8_t ect;
                } tcp;
        } proto;
};

#endif /* _IPT_ECN_H */