From: Yang Xu via ltp <ltp@lists.linux.it>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH] getrandom: Add negative tests for getrandom
Date: Tue, 16 Apr 2024 04:04:48 -0400 [thread overview]
Message-ID: <20240416080448.22650-1-xuyang2018.jy@fujitsu.com> (raw)
Add negative cases for getrandom(), when errno is EFAULT or EINVAL
Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com>
---
runtest/syscalls | 1 +
.../kernel/syscalls/getrandom/.gitignore | 1 +
.../kernel/syscalls/getrandom/getrandom05.c | 46 +++++++++++++++++++
3 files changed, 48 insertions(+)
create mode 100644 testcases/kernel/syscalls/getrandom/getrandom05.c
diff --git a/runtest/syscalls b/runtest/syscalls
index cc1e39c05..62eb4c1cd 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -504,6 +504,7 @@ getrandom01 getrandom01
getrandom02 getrandom02
getrandom03 getrandom03
getrandom04 getrandom04
+getrandom05 getrandom05
getresgid01 getresgid01
getresgid01_16 getresgid01_16
diff --git a/testcases/kernel/syscalls/getrandom/.gitignore b/testcases/kernel/syscalls/getrandom/.gitignore
index ef06ece9d..e47d8b3f4 100644
--- a/testcases/kernel/syscalls/getrandom/.gitignore
+++ b/testcases/kernel/syscalls/getrandom/.gitignore
@@ -2,3 +2,4 @@
/getrandom02
/getrandom03
/getrandom04
+/getrandom05
diff --git a/testcases/kernel/syscalls/getrandom/getrandom05.c b/testcases/kernel/syscalls/getrandom/getrandom05.c
new file mode 100644
index 000000000..a50228d3d
--- /dev/null
+++ b/testcases/kernel/syscalls/getrandom/getrandom05.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2024 FUJITSU LIMITED. All Rights Reserved.
+ * Author: Yang Xu <xuyang2018.jy@fujitsu.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Verify that getrandom(2) fails with
+ *
+ * - EFAULT when buf address is outside the accessible address space
+ * - EINVAL when flag is invalid
+ */
+
+#include <sys/random.h>
+#include "tst_test.h"
+
+static char buff_efault[64];
+static char buff_einval[64];
+
+static struct test_case_t {
+ char *buff;
+ size_t size;
+ unsigned int flag;
+ int expected_errno;
+ char *desc;
+} tcases[] = {
+ {NULL, sizeof(buff_efault), 0, EFAULT,
+ "buf address is outside the accessible address space"},
+ {buff_einval, sizeof(buff_einval), -1, EINVAL, "flag is invalid"},
+};
+
+static void verify_getrandom(unsigned int i)
+{
+ struct test_case_t *tc = &tcases[i];
+
+ TST_EXP_FAIL(getrandom(tc->buff, tc->size, tc->flag),
+ tc->expected_errno, "%s", tc->desc);
+}
+
+static struct tst_test test = {
+ .tcnt = ARRAY_SIZE(tcases),
+ .test = verify_getrandom,
+ .needs_root = 1,
+};
--
2.39.3
--
Mailing list info: https://lists.linux.it/listinfo/ltp
next reply other threads:[~2024-04-16 8:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-16 8:04 Yang Xu via ltp [this message]
2024-04-16 18:45 ` [LTP] [PATCH] getrandom: Add negative tests for getrandom Avinesh Kumar
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