From: Jiri Olsa <jolsa@kernel.org>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andriin@fb.com>
Cc: "Andrii Nakryiko" <andrii@kernel.org>,
netdev@vger.kernel.org, bpf@vger.kernel.org,
"Martin KaFai Lau" <kafai@fb.com>,
"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
"John Fastabend" <john.fastabend@gmail.com>,
"KP Singh" <kpsingh@chromium.org>,
"Toke Høiland-Jørgensen" <toke@redhat.com>,
"Julia Lawall" <julia.lawall@inria.fr>
Subject: [PATCHv5 bpf-next 4/7] selftests/bpf: Add re-attach test to fexit_test
Date: Wed, 14 Apr 2021 21:51:44 +0200 [thread overview]
Message-ID: <20210414195147.1624932-5-jolsa@kernel.org> (raw)
In-Reply-To: <20210414195147.1624932-1-jolsa@kernel.org>
Adding the test to re-attach (detach/attach again) tracing
fexit programs, plus check that already linked program can't
be attached again.
Also switching to ASSERT* macros.
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
.../selftests/bpf/prog_tests/fexit_test.c | 52 +++++++++++++------
1 file changed, 37 insertions(+), 15 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_test.c b/tools/testing/selftests/bpf/prog_tests/fexit_test.c
index 78d7a2765c27..6792e41f7f69 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_test.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_test.c
@@ -3,35 +3,57 @@
#include <test_progs.h>
#include "fexit_test.skel.h"
-void test_fexit_test(void)
+static int fexit_test(struct fexit_test *fexit_skel)
{
- struct fexit_test *fexit_skel = NULL;
int err, prog_fd, i;
__u32 duration = 0, retval;
+ struct bpf_link *link;
__u64 *result;
- fexit_skel = fexit_test__open_and_load();
- if (CHECK(!fexit_skel, "fexit_skel_load", "fexit skeleton failed\n"))
- goto cleanup;
-
err = fexit_test__attach(fexit_skel);
- if (CHECK(err, "fexit_attach", "fexit attach failed: %d\n", err))
- goto cleanup;
+ if (!ASSERT_OK(err, "fexit_attach"))
+ return err;
+
+ /* Check that already linked program can't be attached again. */
+ link = bpf_program__attach(fexit_skel->progs.test1);
+ if (!ASSERT_ERR_PTR(link, "fexit_attach_link"))
+ return -1;
prog_fd = bpf_program__fd(fexit_skel->progs.test1);
err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
NULL, NULL, &retval, &duration);
- CHECK(err || retval, "test_run",
- "err %d errno %d retval %d duration %d\n",
- err, errno, retval, duration);
+ ASSERT_OK(err, "test_run");
+ ASSERT_EQ(retval, 0, "test_run");
result = (__u64 *)fexit_skel->bss;
- for (i = 0; i < 6; i++) {
- if (CHECK(result[i] != 1, "result",
- "fexit_test%d failed err %lld\n", i + 1, result[i]))
- goto cleanup;
+ for (i = 0; i < sizeof(*fexit_skel->bss) / sizeof(__u64); i++) {
+ if (!ASSERT_EQ(result[i], 1, "fexit_result"))
+ return -1;
}
+ fexit_test__detach(fexit_skel);
+
+ /* zero results for re-attach test */
+ memset(fexit_skel->bss, 0, sizeof(*fexit_skel->bss));
+ return 0;
+}
+
+void test_fexit_test(void)
+{
+ struct fexit_test *fexit_skel = NULL;
+ int err;
+
+ fexit_skel = fexit_test__open_and_load();
+ if (!ASSERT_OK_PTR(fexit_skel, "fexit_skel_load"))
+ goto cleanup;
+
+ err = fexit_test(fexit_skel);
+ if (!ASSERT_OK(err, "fexit_first_attach"))
+ goto cleanup;
+
+ err = fexit_test(fexit_skel);
+ ASSERT_OK(err, "fexit_second_attach");
+
cleanup:
fexit_test__destroy(fexit_skel);
}
--
2.30.2
next prev parent reply other threads:[~2021-04-14 19:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-14 19:51 [PATCHv5 bpf-next 0/7] bpf: Tracing and lsm programs re-attach Jiri Olsa
2021-04-14 19:51 ` [PATCHv5 bpf-next 1/7] bpf: Allow trampoline re-attach for tracing and lsm programs Jiri Olsa
2021-04-15 23:22 ` Andrii Nakryiko
2021-04-19 22:47 ` KP Singh
2021-04-14 19:51 ` [PATCHv5 bpf-next 2/7] selftests/bpf: Add missing semicolon Jiri Olsa
2021-04-15 23:23 ` Andrii Nakryiko
2021-04-14 19:51 ` [PATCHv5 bpf-next 3/7] selftests/bpf: Add re-attach test to fentry_test Jiri Olsa
2021-04-14 19:51 ` Jiri Olsa [this message]
2021-04-14 19:51 ` [PATCHv5 bpf-next 5/7] selftests/bpf: Add re-attach test to lsm test Jiri Olsa
2021-04-14 19:51 ` [PATCHv5 bpf-next 6/7] selftests/bpf: Test that module can't be unloaded with attached trampoline Jiri Olsa
2021-04-14 19:51 ` [PATCHv5 bpf-next 7/7] selftests/bpf: Use ASSERT macros in lsm test Jiri Olsa
2021-04-15 23:24 ` Andrii Nakryiko
2021-04-15 23:45 ` [PATCHv5 bpf-next 0/7] bpf: Tracing and lsm programs re-attach Alexei Starovoitov
2021-04-16 6:55 ` Jiri Olsa
2021-04-26 4:14 ` Alexei Starovoitov
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