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1// SPDX-License-Identifier: GPL-2.02 3#include "vmlinux.h"4#include <bpf/bpf_tracing.h>5#include <bpf/bpf_helpers.h>6 7#include "bpf_misc.h"8 9char _license[] SEC("license") = "GPL";10 11int bpf_sock_destroy(struct sock_common *sk) __ksym;12 13SEC("tp_btf/tcp_destroy_sock")14__failure __msg("calling kernel function bpf_sock_destroy is not allowed")15int BPF_PROG(trace_tcp_destroy_sock, struct sock *sk)16{17 /* should not load */18 bpf_sock_destroy((struct sock_common *)sk);19 20 return 0;21}22 23