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4009c95fed
There is an existing "bpf_tcp_ca/unsupp_cong_op" test to ensure the unsupported tcp-cc "get_info" struct_ops prog cannot be loaded. This patch adds a new test in the bpf_testmod such that the unsupported ops test does not depend on other kernel subsystem where its supporting ops may be changed in the future. Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/r/20240722183049.2254692-4-martin.lau@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
23 lines
530 B
C
23 lines
530 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
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#include <vmlinux.h>
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#include <bpf/bpf_tracing.h>
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#include "bpf_misc.h"
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#include "../bpf_testmod/bpf_testmod.h"
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char _license[] SEC("license") = "GPL";
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SEC("struct_ops/unsupported_ops")
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__failure
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__msg("attach to unsupported member unsupported_ops of struct bpf_testmod_ops")
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int BPF_PROG(unsupported_ops)
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{
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return 0;
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}
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SEC(".struct_ops.link")
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struct bpf_testmod_ops testmod = {
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.unsupported_ops = (void *)unsupported_ops,
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};
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