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#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 */
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