The C and C++ Include Header Files

/usr/include/linux/netfilter/xt_string.h


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

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	#ifndef _XT_STRING_H
     3	#define _XT_STRING_H
     4	
     5	#include <linux/types.h>
     6	
     7	#define XT_STRING_MAX_PATTERN_SIZE 128
     8	#define XT_STRING_MAX_ALGO_NAME_SIZE 16
     9	
    10	enum {
    11		XT_STRING_FLAG_INVERT		= 0x01,
    12		XT_STRING_FLAG_IGNORECASE	= 0x02
    13	};
    14	
    15	struct xt_string_info {
    16		__u16 from_offset;
    17		__u16 to_offset;
    18		char	  algo[XT_STRING_MAX_ALGO_NAME_SIZE];
    19		char 	  pattern[XT_STRING_MAX_PATTERN_SIZE];
    20		__u8  patlen;
    21		union {
    22			struct {
    23				__u8  invert;
    24			} v0;
    25	
    26			struct {
    27				__u8  flags;
    28			} v1;
    29		} u;
    30	
    31		/* Used internally by the kernel */
    32		struct ts_config __attribute__((aligned(8))) *config;
    33	};
    34	
    35	#endif /*_XT_STRING_H*/