From patchwork Thu Mar 7 23:27:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yonghong Song X-Patchwork-Id: 13586350 X-Patchwork-Delegate: bpf@iogearbox.net Received: from 66-220-155-178.mail-mxout.facebook.com (66-220-155-178.mail-mxout.facebook.com [66.220.155.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3CAC02134A for ; Thu, 7 Mar 2024 23:27:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=66.220.155.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709854045; cv=none; b=BconCiyir7B7i0Kk2wqrouJX8zs/Dk8esucm6nKg2h/dXyT+uqwBO/nrgLdrF+kf9e99VywPQvx57qplEfbu2mLCdlQCVB4bJZ2Zq/re+OwoWdV30Z0h49DGfuTvxLv7QO9h/AhYNw4we5CEc8PWATrMjWEzlOhHn/6X2WEsLU4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709854045; c=relaxed/simple; bh=bdn2o83kn0QIuxeT+gWYvr7bTb3uemjs7CUit+0tzr0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=o/gd4mzW8Os+nnGzFN1/G1/jkEtR/P25iaSF9wQ8Mj/5GxohvVgu00xHPAlJBQ4Ne8CMWIZTynUpEwxo0trvlawJ5eiCkZqr1MzBg+zlEKDRWPpirTh04K7KsTfkeloJ8S7rdKKhgCp+9Ex1BYsiZocGo7FNAyF3M+fhCQ+rwbg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.dev; spf=fail smtp.mailfrom=linux.dev; arc=none smtp.client-ip=66.220.155.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=linux.dev Received: by devbig309.ftw3.facebook.com (Postfix, from userid 128203) id EA561164A1D6; Thu, 7 Mar 2024 15:27:10 -0800 (PST) From: Yonghong Song To: bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , John Fastabend , kernel-team@fb.com, Martin KaFai Lau , Yury Namgung Subject: [PATCH bpf-next 2/5] selftests/bpf: Replace CHECK with ASSERT_* in ns_current_pid_tgid test Date: Thu, 7 Mar 2024 15:27:10 -0800 Message-ID: <20240307232710.1117329-1-yonghong.song@linux.dev> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240307232659.1115872-1-yonghong.song@linux.dev> References: <20240307232659.1115872-1-yonghong.song@linux.dev> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net Replace CHECK in selftest ns_current_pid_tgid with recommended ASSERT_* style. I also shortened subtest name as the prefix of subtest name is covered by the test name already. This patch does fix a testing issue. Currently even if bss->user_{pid,tgid} is not correct, the test still passed since the clone func returns 0. I fixed it to return a non-zero value if bss->user_{pid,tgid} is incorrect. Signed-off-by: Yonghong Song --- .../bpf/prog_tests/ns_current_pid_tgid.c | 36 ++++++++++--------- 1 file changed, 19 insertions(+), 17 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c b/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c index 24d493482ffc..3a0664a86243 100644 --- a/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c +++ b/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c @@ -20,19 +20,19 @@ static int test_current_pid_tgid(void *args) { struct test_ns_current_pid_tgid__bss *bss; struct test_ns_current_pid_tgid *skel; - int err = -1, duration = 0; + int ret = -1, err; pid_t tgid, pid; struct stat st; skel = test_ns_current_pid_tgid__open_and_load(); - if (CHECK(!skel, "skel_open_load", "failed to load skeleton\n")) - goto cleanup; + if (!ASSERT_OK_PTR(skel, "test_ns_current_pid_tgid__open_and_load")) + goto out; pid = syscall(SYS_gettid); tgid = getpid(); err = stat("/proc/self/ns/pid", &st); - if (CHECK(err, "stat", "failed /proc/self/ns/pid: %d\n", err)) + if (!ASSERT_OK(err, "stat /proc/self/ns/pid")) goto cleanup; bss = skel->bss; @@ -42,24 +42,26 @@ static int test_current_pid_tgid(void *args) bss->user_tgid = 0; err = test_ns_current_pid_tgid__attach(skel); - if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err)) + if (!ASSERT_OK(err, "test_ns_current_pid_tgid__attach")) goto cleanup; /* trigger tracepoint */ usleep(1); - ASSERT_EQ(bss->user_pid, pid, "pid"); - ASSERT_EQ(bss->user_tgid, tgid, "tgid"); - err = 0; + if (!ASSERT_EQ(bss->user_pid, pid, "pid")) + goto cleanup; + if (!ASSERT_EQ(bss->user_tgid, tgid, "tgid")) + goto cleanup; + ret = 0; cleanup: - test_ns_current_pid_tgid__destroy(skel); - - return err; + test_ns_current_pid_tgid__destroy(skel); +out: + return ret; } static void test_ns_current_pid_tgid_new_ns(void) { - int wstatus, duration = 0; + int wstatus; pid_t cpid; /* Create a process in a new namespace, this process @@ -68,21 +70,21 @@ static void test_ns_current_pid_tgid_new_ns(void) cpid = clone(test_current_pid_tgid, child_stack + STACK_SIZE, CLONE_NEWPID | SIGCHLD, NULL); - if (CHECK(cpid == -1, "clone", "%s\n", strerror(errno))) + if (!ASSERT_NEQ(cpid, -1, "clone")) return; - if (CHECK(waitpid(cpid, &wstatus, 0) == -1, "waitpid", "%s\n", strerror(errno))) + if (!ASSERT_NEQ(waitpid(cpid, &wstatus, 0), -1, "waitpid")) return; - if (CHECK(WEXITSTATUS(wstatus) != 0, "newns_pidtgid", "failed")) + if (!ASSERT_OK(WEXITSTATUS(wstatus), "newns_pidtgid")) return; } /* TODO: use a different tracepoint */ void serial_test_ns_current_pid_tgid(void) { - if (test__start_subtest("ns_current_pid_tgid_root_ns")) + if (test__start_subtest("root_ns_tp")) test_current_pid_tgid(NULL); - if (test__start_subtest("ns_current_pid_tgid_new_ns")) + if (test__start_subtest("new_ns_tp")) test_ns_current_pid_tgid_new_ns(); }