651d49f15b
Check that autocreate flags of struct_ops map cause autoload of struct_ops corresponding programs: - when struct_ops program is referenced only from a map for which autocreate is set to false, that program should not be loaded; - when struct_ops program with autoload == false is set to be used from a map with autocreate == true using shadow var, that program should be loaded; - when struct_ops program is not referenced from any map object load should fail. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20240306104529.6453-10-eddyz87@gmail.com
67 lines
1.5 KiB
C
67 lines
1.5 KiB
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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#include "bad_struct_ops2.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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static void unused_program(void)
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{
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struct bad_struct_ops2 *skel;
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char *log = NULL;
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int err;
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skel = bad_struct_ops2__open();
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if (!ASSERT_OK_PTR(skel, "bad_struct_ops2__open"))
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return;
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/* struct_ops programs not referenced from any maps are open
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* with autoload set to true.
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*/
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ASSERT_TRUE(bpf_program__autoload(skel->progs.foo), "foo autoload == true");
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if (start_libbpf_log_capture())
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goto cleanup;
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err = bad_struct_ops2__load(skel);
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ASSERT_ERR(err, "bad_struct_ops2__load should fail");
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log = stop_libbpf_log_capture();
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ASSERT_HAS_SUBSTR(log, "prog 'foo': failed to load",
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"message about 'foo' failing to load");
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cleanup:
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free(log);
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bad_struct_ops2__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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if (test__start_subtest("unused_program"))
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unused_program();
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}
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