1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /* x_tables module for matching the IPv4/IPv6 DSCP field
3 *
4 * (C) 2002 Harald Welte <laforge@gnumonks.org>
5 * This software is distributed under GNU GPL v2, 1991
6 *
7 * See RFC2474 for a description of the DSCP field within the IP Header.
8 *
9 * xt_dscp.h,v 1.3 2002/08/05 19:00:21 laforge Exp
10 */
11 #ifndef _XT_DSCP_H
12 #define _XT_DSCP_H
13
14 #include <linux/types.h>
15
16 #define XT_DSCP_MASK 0xfc /* 11111100 */
17 #define XT_DSCP_SHIFT 2
18 #define XT_DSCP_MAX 0x3f /* 00111111 */
19
20 /* match info */
21 struct xt_dscp_info {
22 __u8 dscp;
23 __u8 invert;
24 };
25
26 struct xt_tos_match_info {
27 __u8 tos_mask;
28 __u8 tos_value;
29 __u8 invert;
30 };
31
32 #endif /* _XT_DSCP_H */