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