linux-stable/tools/testing/selftests/bpf/progs/bpf_tcp_nogpl.c
Toke Høiland-Jørgensen d8e8052e42 bpf/selftests: Test that kernel rejects a TCP CC with an invalid license
This adds a selftest to check that the verifier rejects a TCP CC struct_ops
with a non-GPL license.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210326100314.121853-2-toke@redhat.com
2021-03-26 17:51:02 +01:00

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C

// SPDX-License-Identifier: GPL-2.0
#include <linux/bpf.h>
#include <linux/types.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include "bpf_tcp_helpers.h"
char _license[] SEC("license") = "X";
void BPF_STRUCT_OPS(nogpltcp_init, struct sock *sk)
{
}
SEC(".struct_ops")
struct tcp_congestion_ops bpf_nogpltcp = {
.init = (void *)nogpltcp_init,
.name = "bpf_nogpltcp",
};