include/linux/netfilter_ipv4/ipt_ecn.h

   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
  12 #include <linux/types.h>
  13 #include <linux/netfilter/xt_dscp.h>
  14
  15 #define IPT_ECN_IP_MASK (~XT_DSCP_MASK)
  16
  17 #define IPT_ECN_OP_MATCH_IP     0x01
  18 #define IPT_ECN_OP_MATCH_ECE    0x10
  19 #define IPT_ECN_OP_MATCH_CWR    0x20
  20
  21 #define IPT_ECN_OP_MATCH_MASK   0xce
  22
  23 /* match info */
  24 struct ipt_ecn_info {
  25         __u8 operation;
  26         __u8 invert;
  27         __u8 ip_ect;
  28         union {
  29                 struct {
  30                         __u8 ect;
  31                 } tcp;
  32         } proto;
  33 };
  34
  35 #endif /* _IPT_ECN_H */