Christopher Ferris | 2598113 | 2017-11-14 16:53:49 -0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
Ben Cheng | 30692c6 | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 2 | /* iptables module for matching the ECN header in IPv4 and TCP header |
| 3 | * |
| 4 | * (C) 2002 Harald Welte <laforge@gnumonks.org> |
| 5 | * |
| 6 | * This software is distributed under GNU GPL v2, 1991 |
| 7 | * |
| 8 | * ipt_ecn.h,v 1.4 2002/08/05 19:39:00 laforge Exp |
| 9 | */ |
| 10 | #ifndef _XT_ECN_H |
| 11 | #define _XT_ECN_H |
| 12 | |
| 13 | #include <linux/types.h> |
| 14 | #include <linux/netfilter/xt_dscp.h> |
| 15 | |
| 16 | #define XT_ECN_IP_MASK (~XT_DSCP_MASK) |
| 17 | |
| 18 | #define XT_ECN_OP_MATCH_IP 0x01 |
| 19 | #define XT_ECN_OP_MATCH_ECE 0x10 |
| 20 | #define XT_ECN_OP_MATCH_CWR 0x20 |
| 21 | |
| 22 | #define XT_ECN_OP_MATCH_MASK 0xce |
| 23 | |
| 24 | /* match info */ |
| 25 | struct xt_ecn_info { |
| 26 | __u8 operation; |
| 27 | __u8 invert; |
| 28 | __u8 ip_ect; |
| 29 | union { |
| 30 | struct { |
| 31 | __u8 ect; |
| 32 | } tcp; |
| 33 | } proto; |
| 34 | }; |
| 35 | |
| 36 | #endif /* _XT_ECN_H */ |