The C and C++ Include Header Files

/usr/include/linux/netfilter_bridge/ebt_mark_t.h


$ cat -n /usr/include/linux/netfilter_bridge/ebt_mark_t.h

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	#ifndef __LINUX_BRIDGE_EBT_MARK_T_H
     3	#define __LINUX_BRIDGE_EBT_MARK_T_H
     4	
     5	/* The target member is reused for adding new actions, the
     6	 * value of the real target is -1 to -NUM_STANDARD_TARGETS.
     7	 * For backward compatibility, the 4 lsb (2 would be enough,
     8	 * but let's play it safe) are kept to designate this target.
     9	 * The remaining bits designate the action. By making the set
    10	 * action 0xfffffff0, the result will look ok for older
    11	 * versions. [September 2006] */
    12	#define MARK_SET_VALUE (0xfffffff0)
    13	#define MARK_OR_VALUE  (0xffffffe0)
    14	#define MARK_AND_VALUE (0xffffffd0)
    15	#define MARK_XOR_VALUE (0xffffffc0)
    16	
    17	struct ebt_mark_t_info {
    18		unsigned long mark;
    19		/* EBT_ACCEPT, EBT_DROP, EBT_CONTINUE or EBT_RETURN */
    20		int target;
    21	};
    22	#define EBT_MARK_TARGET "mark"
    23	
    24	#endif