#include <linux/bpf.h> #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> struct { __uint(type, BPF_MAP_TYPE_SOCKMAP); __uint(max_entries, 20); __type(key, int); __type(value, int); } sock_map_rx SEC(".maps"); struct { __uint(type, BPF_MAP_TYPE_SOCKMAP); __uint(max_entries, 20); __type(key, int); __type(value, int); } sock_map_tx SEC(".maps"); struct { __uint(type, BPF_MAP_TYPE_SOCKMAP); __uint(max_entries, 20); __type(key, int); __type(value, int); } sock_map_msg SEC(".maps"); SEC("sk_skb") int prog_skb_verdict(struct __sk_buff *skb) { return SK_PASS; } char _license[] SEC("license") = "GPL";