c1b93c07b3
When loading struct_ops programs kernel requires BTF id of the struct_ops type and member index for attachment point inside that type. This makes impossible to use same BPF program in several struct_ops maps that have different struct_ops type. Check if libbpf rejects such BPF objects files. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20240306104529.6453-7-eddyz87@gmail.com
36 lines
764 B
C
36 lines
764 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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#include "bad_struct_ops.skel.h"
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static void invalid_prog_reuse(void)
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{
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struct bad_struct_ops *skel;
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char *log = NULL;
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int err;
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skel = bad_struct_ops__open();
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if (!ASSERT_OK_PTR(skel, "bad_struct_ops__open"))
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return;
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if (start_libbpf_log_capture())
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goto cleanup;
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err = bad_struct_ops__load(skel);
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log = stop_libbpf_log_capture();
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ASSERT_ERR(err, "bad_struct_ops__load should fail");
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ASSERT_HAS_SUBSTR(log,
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"struct_ops init_kern testmod_2 func ptr test_1: invalid reuse of prog test_1",
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"expected init_kern message");
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cleanup:
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free(log);
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bad_struct_ops__destroy(skel);
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}
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void test_bad_struct_ops(void)
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{
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if (test__start_subtest("invalid_prog_reuse"))
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invalid_prog_reuse();
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}
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