/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* 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 _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 */