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 #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 */