[LTP] [PATCH] syscalls/fremovexattr: Add fremovexattr() tests

* [LTP] [PATCH] syscalls/fremovexattr: Add fremovexattr() tests
@ 2018-11-01 22:05 Rafael David Tinoco
  2018-11-04 23:45 ` Rafael David Tinoco
  0 siblings, 1 reply; 12+ messages in thread
From: Rafael David Tinoco @ 2018-11-01 22:05 UTC (permalink / raw)
  To: ltp

Fixes: #276

Following the same logic and tests used to test removexattr() syscall,
this commit implements tests for fremovexattr(). It only differs from
removexattr() on the given arguments: using a file descriptor instead of
the filename.

Kernel has different entry points for both, with slightly different
execution paths, mainly related to dealing with the passed file
descriptor.

Signed-off-by: Rafael David Tinoco <rafael.tinoco@linaro.org>
---
 runtest/syscalls                              |   3 +
 .../kernel/syscalls/fremovexattr/.gitignore   |   2 +
 .../kernel/syscalls/fremovexattr/Makefile     |   8 ++
 .../syscalls/fremovexattr/fremovexattr01.c    | 105 ++++++++++++++
 .../syscalls/fremovexattr/fremovexattr02.c    | 130 ++++++++++++++++++
 5 files changed, 248 insertions(+)
 create mode 100644 testcases/kernel/syscalls/fremovexattr/.gitignore
 create mode 100644 testcases/kernel/syscalls/fremovexattr/Makefile
 create mode 100644 testcases/kernel/syscalls/fremovexattr/fremovexattr01.c
 create mode 100644 testcases/kernel/syscalls/fremovexattr/fremovexattr02.c

diff --git a/runtest/syscalls b/runtest/syscalls
index 2ac9f7665..c48ada707 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -319,6 +319,9 @@ fork14 fork14
 
 fpathconf01 fpathconf01
 
+fremovexattr01 fremovexattr01
+fremovexattr02 fremovexattr02
+
 fstat01 fstat01
 fstat01_64 fstat01_64
 fstat02 fstat02
diff --git a/testcases/kernel/syscalls/fremovexattr/.gitignore b/testcases/kernel/syscalls/fremovexattr/.gitignore
new file mode 100644
index 000000000..455a9db2e
--- /dev/null
+++ b/testcases/kernel/syscalls/fremovexattr/.gitignore
@@ -0,0 +1,2 @@
+fremovexattr01
+fremovexattr02
diff --git a/testcases/kernel/syscalls/fremovexattr/Makefile b/testcases/kernel/syscalls/fremovexattr/Makefile
new file mode 100644
index 000000000..f71e4fc25
--- /dev/null
+++ b/testcases/kernel/syscalls/fremovexattr/Makefile
@@ -0,0 +1,8 @@
+# Copyright (c) 2018 - Linaro Limited. All rights reserved.
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+top_srcdir		?= ../../../..
+
+include $(top_srcdir)/include/mk/testcases.mk
+
+include $(top_srcdir)/include/mk/generic_leaf_target.mk
\ No newline at end of file
diff --git a/testcases/kernel/syscalls/fremovexattr/fremovexattr01.c b/testcases/kernel/syscalls/fremovexattr/fremovexattr01.c
new file mode 100644
index 000000000..f51a434cc
--- /dev/null
+++ b/testcases/kernel/syscalls/fremovexattr/fremovexattr01.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2018 Linaro Limited. All rights reserved.
+ * Author: Rafael David Tinoco <rafael.tinoco@linaro.org>
+ */
+
+/*
+ * Test Name: fremovexattr01
+ *
+ * Description:
+ * Like removexattr(2), fremovexattr(2) also removes an extended attribute,
+ * identified by a name, from a file but, instead of using a filename path, it
+ * uses a descriptor. This test verifies that a simple call to fremovexattr(2)
+ * removes, indeed, a previously set attribute key/value from a file.
+ */
+
+#include "config.h"
+#include <errno.h>
+#include <stdlib.h>
+
+#ifdef HAVE_SYS_XATTR_H
+# include <sys/xattr.h>
+#endif
+
+#include "tst_test.h"
+
+#ifdef HAVE_SYS_XATTR_H
+
+#define ENOATTR ENODATA
+
+#define XATTR_TEST_KEY "user.testkey"
+#define XATTR_TEST_VALUE "this is a test value"
+#define XATTR_TEST_VALUE_SIZE 20
+
+#define MNTPOINT "mntpoint"
+#define FNAME MNTPOINT"/fremovexattr01testfile"
+
+static int fd = -1;
+static char *got_value;
+
+static void verify_fremovexattr(void)
+{
+	SAFE_FSETXATTR(fd, XATTR_TEST_KEY, XATTR_TEST_VALUE,
+			XATTR_TEST_VALUE_SIZE, XATTR_CREATE);
+
+	TEST(fremovexattr(fd, XATTR_TEST_KEY));
+
+	if (TST_RET == -1 && TST_ERR == EOPNOTSUPP) {
+		tst_brk(TCONF, "fremovexattr(2) not supported");
+		return;
+	}
+
+	if (TST_RET != 0) {
+		tst_res(TFAIL | TTERRNO, "fremovexattr(2) failed with %li",
+				TST_RET);
+		return;
+	}
+
+	memset(got_value, 0, XATTR_TEST_VALUE_SIZE);
+
+	TEST(fgetxattr(fd, XATTR_TEST_KEY, got_value, XATTR_TEST_VALUE_SIZE));
+
+	if (TST_RET >= 0) {
+		tst_res(TFAIL, "fremovexattr(2) did not remove attribute");
+		return;
+	}
+
+	if (TST_RET < 0 && TST_ERR != ENOATTR) {
+		tst_brk(TBROK, "fremovexattr(2) could not verify removal");
+		return;
+	}
+
+	tst_res(TPASS, "fremovexattr(2) removed attribute as expected");
+}
+
+static void cleanup(void)
+{
+	free(got_value);
+
+	close(fd);
+}
+
+static void setup(void)
+{
+	SAFE_TOUCH(FNAME, 0644, NULL);
+
+	fd = SAFE_OPEN(FNAME, O_RDWR, NULL);
+
+	got_value = SAFE_MALLOC(XATTR_TEST_VALUE_SIZE);
+}
+
+static struct tst_test test = {
+	.setup = setup,
+	.test_all = verify_fremovexattr,
+	.cleanup = cleanup,
+	.mntpoint = MNTPOINT,
+	.mount_device = 1,
+	.all_filesystems = 1,
+	.needs_tmpdir = 1,
+	.needs_root = 1,
+};
+
+#else /* HAVE_SYS_XATTR_H */
+TST_TEST_TCONF("<sys/xattr.h> does not exist");
+#endif
diff --git a/testcases/kernel/syscalls/fremovexattr/fremovexattr02.c b/testcases/kernel/syscalls/fremovexattr/fremovexattr02.c
new file mode 100644
index 000000000..5585b6abe
--- /dev/null
+++ b/testcases/kernel/syscalls/fremovexattr/fremovexattr02.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2018 Linaro Limited. All rights reserved.
+ * Author: Rafael David Tinoco <rafael.tinoco@linaro.org>
+ */
+
+/*
+ * Test Name: fremovexattr02
+ *
+ * Test cases::
+ * 1) fremovexattr(2) fails if the named attribute does not exist.
+ * 2) fremovexattr(2) fails if file descriptor is not valid.
+ * 3) fremovexattr(2) fails if named attribute has an invalid address.
+ *
+ * Expected Results:
+ * fremovexattr(2) should return -1 and set errno to ENODATA.
+ * fremovexattr(2) should return -1 and set errno to EBADF.
+ * fremovexattr(2) should return -1 and set errno to EFAULT.
+ */
+
+#include "config.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#ifdef HAVE_SYS_XATTR_H
+# include <sys/xattr.h>
+#endif
+
+#include "tst_test.h"
+
+#ifdef HAVE_SYS_XATTR_H
+
+#define XATTR_TEST_KEY "user.testkey"
+
+#define MNTPOINT "mntpoint"
+#define FNAME MNTPOINT"/fremovexattr02testfile"
+
+static int fd = -1;
+
+struct test_case {
+	int fd;
+	char *key;
+	char *value;
+	char *gotvalue;
+	int size;
+	int exp_ret;
+	int exp_err;
+};
+
+struct test_case tc[] = {
+	{				/* case 1: attribute does not exist */
+	 .key = XATTR_TEST_KEY,
+	 .exp_ret = -1,
+	 .exp_err = ENODATA,
+	 },
+	{				/* case 2: file descriptor is invalid */
+	 .fd = -1,
+	 .key = XATTR_TEST_KEY,
+	 .exp_ret = -1,
+	 .exp_err = EBADF,
+	 },
+	{				/* case 3: bad name attribute */
+	 .exp_ret = -1,
+	 .exp_err = EFAULT,
+	},
+};
+
+static void verify_fremovexattr(unsigned int i)
+{
+	TEST(fremovexattr(tc[i].fd, tc[i].key));
+
+	if (TST_RET == -1 && TST_ERR == EOPNOTSUPP)
+		tst_brk(TCONF, "fremovexattr(2) not supported");
+
+	if (tc[i].exp_ret == TST_RET) {
+
+		if (tc[i].exp_err) {
+			if (tc[i].exp_err == TST_ERR) {
+				tst_res(TPASS, "fremovexattr(2) passed");
+				return;
+			}
+		} else  {
+			tst_res(TPASS, "fremovexattr(2) passed");
+			return;
+		}
+	}
+
+	tst_res(TFAIL | TTERRNO, "fremovexattr(2) failed");
+}
+
+static void cleanup(void)
+{
+	if (fd > 0)
+		SAFE_CLOSE(fd);
+}
+
+static void setup(void)
+{
+	size_t i = 0;
+
+	SAFE_TOUCH(FNAME, 0644, NULL);
+	fd = SAFE_OPEN(FNAME, O_RDWR, NULL);
+
+	for (i = 0; i < ARRAY_SIZE(tc); i++) {
+
+		if (tc[i].fd != -1)
+			tc[i].fd = fd;
+
+		if (!tc[i].key && tc[i].exp_err == EFAULT)
+			tc[i].key = tst_get_bad_addr(cleanup);
+	}
+}
+
+static struct tst_test test = {
+	.setup = setup,
+	.test = verify_fremovexattr,
+	.cleanup = cleanup,
+	.tcnt = ARRAY_SIZE(tc),
+	.mntpoint = MNTPOINT,
+	.mount_device = 1,
+	.all_filesystems = 1,
+	.needs_tmpdir = 1,
+	.needs_root = 1,
+};
+
+#else /* HAVE_SYS_XATTR_H */
+TST_TEST_TCONF("<sys/xattr.h> does not exist");
+#endif
-- 
2.19.1


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