struct bpf_map_def {
unsigned int type;
unsigned int key_size;
unsigned int value_size;
unsigned int max_entries;
unsigned int map_flags;
};
#include <linux/if_ether.h>
#include <linux/filter.h>
#include <linux/bpf.h>
#include <linux/in6.h>
#include <sys/socket.h>
#include <linux/if_ether.h>