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

     2  *

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

     4  *

     5  * This software is distributed under GNU GPL v2, 1991

     6  * 

     7  * ipt_ecn.h,v 1.4 2002/08/05 19:39:00 laforge Exp

     8 */

     9 #ifndef _IPT_ECN_H

    10 #define _IPT_ECN_H

    11 #include <linux/netfilter_ipv4/ipt_dscp.h>

    12 

    13 #define IPT_ECN_IP_MASK	(~IPT_DSCP_MASK)

    14 

    15 #define IPT_ECN_OP_MATCH_IP	0x01

    16 #define IPT_ECN_OP_MATCH_ECE	0x10

    17 #define IPT_ECN_OP_MATCH_CWR	0x20

    18 

    19 #define IPT_ECN_OP_MATCH_MASK	0xce

    20 

    21 /* match info */

    22 struct ipt_ecn_info {

    23 	u_int8_t operation;

    24 	u_int8_t invert;

    25 	u_int8_t ip_ect;

    26 	union {

    27 		struct {

    28 			u_int8_t ect;

    29 		} tcp;

    30 	} proto;

    31 };

    32 

    33 #endif /* _IPT_ECN_H */