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 
17 struct nf_synproxy_info {
18 	__u8	options;
19 	__u8	wscale;
20 	__u16	mss;
21 };
22 
23 #endif /* _NF_SYNPROXY_H */
24