23 lines
480 B
C
23 lines
480 B
C
// SPDX-License-Identifier: GPL-2.0
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#include "vmlinux.h"
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#include <bpf/bpf_tracing.h>
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#include <bpf/bpf_helpers.h>
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#include "bpf_misc.h"
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char _license[] SEC("license") = "GPL";
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int bpf_sock_destroy(struct sock_common *sk) __ksym;
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SEC("tp_btf/tcp_destroy_sock")
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__failure __msg("calling kernel function bpf_sock_destroy is not allowed")
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int BPF_PROG(trace_tcp_destroy_sock, struct sock *sk)
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{
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/* should not load */
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bpf_sock_destroy((struct sock_common *)sk);
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return 0;
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}
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