1// SPDX-License-Identifier: GPL-2.0
 2
 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

 1// SPDX-License-Identifier: GPL-2.0
 2
 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