1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _NF_SYNPROXY_H
3#define _NF_SYNPROXY_H
4
5#include <linux/types.h>
6
7#define NF_SYNPROXY_OPT_MSS		0x01
8#define NF_SYNPROXY_OPT_WSCALE		0x02
9#define NF_SYNPROXY_OPT_SACK_PERM	0x04
10#define NF_SYNPROXY_OPT_TIMESTAMP	0x08
11#define NF_SYNPROXY_OPT_ECN		0x10
12#define NF_SYNPROXY_OPT_MASK		(NF_SYNPROXY_OPT_MSS | \
13					 NF_SYNPROXY_OPT_WSCALE | \
14					 NF_SYNPROXY_OPT_SACK_PERM | \
15					 NF_SYNPROXY_OPT_TIMESTAMP)
16
17struct nf_synproxy_info {
18	__u8	options;
19	__u8	wscale;
20	__u16	mss;
21};
22
23#endif /* _NF_SYNPROXY_H */
24