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The C and C++ Include Header Files

/usr/include/linux/netfilter/nf_synproxy.h


$ cat -n /usr/include/linux/netfilter/nf_synproxy.h

     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 */