#ifndef _XT_BPF_H

#define _XT_BPF_H

#include <linux/filter.h>

#include <linux/limits.h>

#include <linux/types.h>

#define XT_BPF_MAX_NUM_INSTR	64

#define XT_BPF_PATH_MAX		(XT_BPF_MAX_NUM_INSTR * sizeof(struct sock_filter))

struct bpf_prog;

struct xt_bpf_info {

	__u16 bpf_program_num_elem;

	struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR];

	/* only used in the kernel */

	struct bpf_prog *filter __attribute__((aligned(8)));

};

enum xt_bpf_modes {

	XT_BPF_MODE_BYTECODE,

	XT_BPF_MODE_FD_PINNED,

	XT_BPF_MODE_FD_ELF,

};

struct xt_bpf_info_v1 {

	__u16 mode;

	__u16 bpf_program_num_elem;

	__s32 fd;

	union {

		struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR];

		char path[XT_BPF_PATH_MAX];

	};

	/* only used in the kernel */

	struct bpf_prog *filter __attribute__((aligned(8)));

};

#endif /*_XT_BPF_H */