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1// SPDX-License-Identifier: GPL-2.02#include <linux/bpf.h>3 4#include <bpf/bpf_helpers.h>5 6struct {7 __uint(type, BPF_MAP_TYPE_PROG_ARRAY);8 __uint(max_entries, 1);9 __uint(key_size, sizeof(__u32));10 __uint(value_size, sizeof(__u32));11} jmp_table SEC(".maps");12 13int count = 0;14 15SEC("tc")16int classifier_0(struct __sk_buff *skb)17{18 count++;19 bpf_tail_call_static(skb, &jmp_table, 0);20 return 1;21}22 23SEC("tc")24int entry(struct __sk_buff *skb)25{26 bpf_tail_call_static(skb, &jmp_table, 0);27 return 0;28}29 30char __license[] SEC("license") = "GPL";31