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1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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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 */ |
37 |
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