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selftests/bpf: prog_tests entry point for migrated test_verifier tests

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prog_tests/verifier.c would be used as a host for verifier/*.c tests
migrated to use inline assembly and run from test_progs.

The run_test_aux() function mimics the test_verifier behavior
dropping CAP_SYS_ADMIN upon entry.

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20230325025524.144043-6-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Eduard Zingerman 2023-03-25 04:54:46 +02:00 committed by Alexei Starovoitov
parent 19a8e06f5f
commit 55108621a3
1 changed files with 29 additions and 0 deletions
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29
tools/testing/selftests/bpf/prog_tests/verifier.c Normal file
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// SPDX-License-Identifier: GPL-2.0-only
#include <test_progs.h>
#include "cap_helpers.h"
__maybe_unused
static void run_tests_aux(const char *skel_name, skel_elf_bytes_fn elf_bytes_factory)
{
struct test_loader tester = {};
__u64 old_caps;
int err;
/* test_verifier tests are executed w/o CAP_SYS_ADMIN, do the same here */
err = cap_disable_effective(1ULL << CAP_SYS_ADMIN, &old_caps);
if (err) {
PRINT_FAIL("failed to drop CAP_SYS_ADMIN: %i, %s\n", err, strerror(err));
return;
}
test_loader__run_subtests(&tester, skel_name, elf_bytes_factory);
test_loader_fini(&tester);
err = cap_enable_effective(old_caps, NULL);
if (err)
PRINT_FAIL("failed to restore CAP_SYS_ADMIN: %i, %s\n", err, strerror(err));
}
#define RUN(skel) run_tests_aux(#skel, skel##__elf_bytes)