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The C and C++ Include Header Files

/usr/include/linux/netfilter_ipv6/ip6t_hl.h


$ cat -n /usr/include/linux/netfilter_ipv6/ip6t_hl.h

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	/* ip6tables module for matching the Hop Limit value
     3	 * Maciej Soltysiak <solt@dns.toxicfilms.tv>
     4	 * Based on HW's ttl module */
     5	
     6	#ifndef _IP6T_HL_H
     7	#define _IP6T_HL_H
     8	
     9	#include <linux/types.h>
    10	
    11	enum {
    12		IP6T_HL_EQ = 0,		/* equals */
    13		IP6T_HL_NE,		/* not equals */
    14		IP6T_HL_LT,		/* less than */
    15		IP6T_HL_GT,		/* greater than */
    16	};
    17	
    18	
    19	struct ip6t_hl_info {
    20		__u8	mode;
    21		__u8	hop_limit;
    22	};
    23	
    24	
    25	#endif