[LTP] [PATCH v3] Refactor mount02 test using new LTP API
Andrea Cervesato
andrea.cervesato@suse.de
Mon Feb 12 13:18:17 CET 2024
From: Andrea Cervesato <andrea.cervesato@suse.com>
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
testcases/kernel/syscalls/mount/mount02.c | 248 ++++++++--------------
1 file changed, 92 insertions(+), 156 deletions(-)
diff --git a/testcases/kernel/syscalls/mount/mount02.c b/testcases/kernel/syscalls/mount/mount02.c
index 392b4fd3a..96aa1aa91 100644
--- a/testcases/kernel/syscalls/mount/mount02.c
+++ b/testcases/kernel/syscalls/mount/mount02.c
@@ -1,212 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
- * AUTHOR: Nirmala Devi Dhanasekar <nirmala.devi@wipro.com>
- * Copyright (c) 2014 Cyril Hrubis <chrubis@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * Nirmala Devi Dhanasekar <nirmala.devi@wipro.com>
+ * Copyright (C) 2023 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * Check for basic errors returned by mount(2) system call.
*
+ * - ENODEV if filesystem type not configured
+ * - ENOTBLK if specialfile is not a block device
+ * - EBUSY if specialfile is already mounted or it cannot be remounted
+ * read-only, because it still holds files open for writing.
+ * - EINVAL if specialfile or device is invalid or a remount was attempted,
+ * while source was not already mounted on target.
+ * - EFAULT if special file or device file points to invalid address space.
+ * - ENAMETOOLONG if pathname was longer than MAXPATHLEN.
+ * - ENOENT if pathname was empty or has a nonexistent component.
+ * - ENOTDIR if not a directory.
*/
-/*
-
- DESCRIPTION
- Check for basic errors returned by mount(2) system call.
-
- Verify that mount(2) returns -1 and sets errno to
- 1) ENODEV if filesystem type not configured
- 2) ENOTBLK if specialfile is not a block device
- 3) EBUSY if specialfile is already mounted or
- it cannot be remounted read-only, because it still holds
- files open for writing.
- 4) EINVAL if specialfile or device is invalid or
- a remount was attempted, while source was not already
- mounted on target.
- 5) EFAULT if specialfile or device file points to invalid address space.
- 6) ENAMETOOLONG if pathname was longer than MAXPATHLEN.
- 7) ENOENT if pathname was empty or has a nonexistent component.
- 8) ENOTDIR if not a directory.
-*/
-
-#include <errno.h>
+#include "tst_test.h"
#include <sys/mount.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/sysmacros.h>
-#include <fcntl.h>
-#include "test.h"
-#include "safe_macros.h"
-static void setup(void);
-static void cleanup(void);
-
-char *TCID = "mount02";
-
-#define DIR_MODE (S_IRWXU | S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP)
-#define FILE_MODE (S_IRWXU | S_IRWXG | S_IRWXO)
+#define MNTPOINT "mntpoint"
+#define TEST_FILE MNTPOINT"/file"
static char path[PATH_MAX + 2];
static const char *long_path = path;
+static const char *device;
static const char *fs_type;
+static const char *null;
static const char *wrong_fs_type = "error";
-static const char *mntpoint = "mntpoint";
-static const char *device;
-static const char *null = NULL;
-static const char *fault = (void*)-1;
+static const char *mntpoint = MNTPOINT;
+static const char *fault;
static const char *nonexistent = "nonexistent";
static const char *char_dev = "char_device";
static const char *file = "filename";
static int fd;
-static void do_umount(void);
-static void close_umount(void);
-static void do_mount(void);
-static void mount_open(void);
+static void pre_mount(void);
+static void post_umount(void);
+static void pre_create_file(void);
+static void post_delete_file(void);
static struct test_case {
const char **device;
const char **mntpoint;
const char **fs_type;
+ const char *desc;
unsigned long flag;
int exp_errno;
void (*setup)(void);
void (*cleanup)(void);
-} tc[] = {
- {&device, &mntpoint, &wrong_fs_type, 0, ENODEV, NULL, NULL},
- {&char_dev, &mntpoint, &fs_type, 0, ENOTBLK, NULL, NULL},
- {&device, &mntpoint, &fs_type, 0, EBUSY, do_mount, do_umount},
- {&device, &mntpoint, &fs_type, MS_REMOUNT | MS_RDONLY, EBUSY,
- mount_open, close_umount},
- {&null, &mntpoint, &fs_type, 0, EINVAL, NULL, NULL},
- {&device, &mntpoint, &null, 0, EINVAL, NULL, NULL},
- {&device, &mntpoint, &fs_type, MS_REMOUNT, EINVAL, NULL, NULL},
- {&fault, &mntpoint, &fs_type, 0, EFAULT, NULL, NULL},
- {&device, &mntpoint, &fault, 0, EFAULT, NULL, NULL},
- {&device, &long_path, &fs_type, 0, ENAMETOOLONG, NULL, NULL},
- {&device, &nonexistent, &fs_type, 0, ENOENT, NULL, NULL},
- {&device, &file, &fs_type, 0, ENOTDIR, NULL, NULL},
+} test_cases[] = {
+ {.fs_type = &wrong_fs_type, .desc = "wrong FS type", .exp_errno = ENODEV},
+ {.device = &char_dev, .desc = "char device", .exp_errno = ENOTBLK},
+ {.desc = "mounted folder", .exp_errno = EBUSY, .setup = pre_mount, .cleanup = post_umount},
+ {.desc = "mounted folder containing file", .flag = MS_REMOUNT | MS_RDONLY, .exp_errno = EBUSY, .setup = pre_create_file, .cleanup = post_delete_file},
+ {.device = &null, .desc = "invalid device", .exp_errno = EINVAL},
+ {.fs_type = &null, .desc = "invalid device type", .exp_errno = EINVAL},
+ {.desc = "mounted folder", .flag = MS_REMOUNT, .exp_errno = EINVAL},
+ {.device = &fault, .desc = "fault device", .exp_errno = EFAULT},
+ {.fs_type = &fault, .desc = "fault device type", .exp_errno = EFAULT},
+ {.mntpoint = &long_path, .desc = "long name", .exp_errno = ENAMETOOLONG},
+ {.mntpoint = &nonexistent, .desc = "non existant folder", .exp_errno = ENOENT},
+ {.device = &device, .mntpoint = &file, .desc = "file", .exp_errno = ENOTDIR},
};
-int TST_TOTAL = ARRAY_SIZE(tc);
-
-static void verify_mount(struct test_case *tc)
-{
- if (tc->setup)
- tc->setup();
-
- TEST(mount(*tc->device, *tc->mntpoint, *tc->fs_type, tc->flag, NULL));
-
- if (TEST_RETURN != -1) {
- tst_resm(TFAIL, "mount() succeded unexpectedly (ret=%li)",
- TEST_RETURN);
- goto cleanup;
- }
-
- if (TEST_ERRNO != tc->exp_errno) {
- tst_resm(TFAIL | TTERRNO,
- "mount() was expected to fail with %s(%i)",
- tst_strerrno(tc->exp_errno), tc->exp_errno);
- goto cleanup;
- }
-
- tst_resm(TPASS | TTERRNO, "mount() failed expectedly");
-
-cleanup:
- if (tc->cleanup)
- tc->cleanup();
-}
-
-int main(int ac, char **av)
-{
- int lc, i;
-
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup();
-
- for (lc = 0; TEST_LOOPING(lc); lc++) {
- tst_count = 0;
-
- for (i = 0; i < TST_TOTAL; ++i)
- verify_mount(tc + i);
- }
-
- cleanup();
- tst_exit();
-}
-
-static void do_mount(void)
+static void pre_mount(void)
{
- if (mount(device, mntpoint, fs_type, 0, NULL))
- tst_brkm(TBROK | TERRNO, cleanup, "Failed to mount(mntpoint)");
+ SAFE_MOUNT(device, mntpoint, fs_type, 0, NULL);
}
-static void mount_open(void)
+static void post_umount(void)
{
- do_mount();
-
- fd = SAFE_OPEN(cleanup, "mntpoint/file", O_CREAT | O_RDWR, S_IRWXU);
+ if (tst_is_mounted(MNTPOINT))
+ SAFE_UMOUNT(MNTPOINT);
}
-static void close_umount(void)
+static void pre_create_file(void)
{
- SAFE_CLOSE(cleanup, fd);
- do_umount();
+ pre_mount();
+ fd = SAFE_OPEN(TEST_FILE, O_CREAT | O_RDWR, 0700);
}
-static void do_umount(void)
+static void post_delete_file(void)
{
- if (tst_umount(mntpoint))
- tst_brkm(TBROK | TERRNO, cleanup, "Failed to umount(mntpoint)");
+ SAFE_CLOSE(fd);
+ post_umount();
}
static void setup(void)
{
- dev_t dev;
+ fault = tst_get_bad_addr(NULL);
- tst_sig(FORK, DEF_HANDLER, cleanup);
+ device = tst_device->dev;
+ fs_type = tst_device->fs_type;
- tst_require_root();
+ memset(path, 'a', PATH_MAX + 1);
- tst_tmpdir();
+ SAFE_MKNOD(char_dev, S_IFCHR | 0777, 0);
+ SAFE_TOUCH(file, 0777, 0);
+}
- SAFE_TOUCH(cleanup, file, FILE_MODE, NULL);
+static void cleanup(void)
+{
+ if (tst_is_mounted(MNTPOINT))
+ SAFE_UMOUNT(MNTPOINT);
+}
- fs_type = tst_dev_fs_type();
- device = tst_acquire_device(cleanup);
+static void run(unsigned int i)
+{
+ struct test_case *tc = &test_cases[i];
- if (!device)
- tst_brkm(TCONF, cleanup, "Failed to obtain block device");
+ if (!tc->device)
+ tc->device = &device;
- tst_mkfs(cleanup, device, fs_type, NULL, NULL);
+ if (!tc->mntpoint)
+ tc->mntpoint = &mntpoint;
- SAFE_MKDIR(cleanup, mntpoint, DIR_MODE);
+ if (!tc->fs_type)
+ tc->fs_type = &fs_type;
- memset(path, 'a', PATH_MAX + 1);
+ if (tc->setup)
+ tc->setup();
- dev = makedev(1, 3);
- if (mknod(char_dev, S_IFCHR | FILE_MODE, dev)) {
- tst_brkm(TBROK | TERRNO, cleanup,
- "failed to mknod(char_dev, S_IFCHR | FILE_MODE, %lu)",
- dev);
- }
+ TST_EXP_FAIL(mount(*tc->device, *tc->mntpoint, *tc->fs_type, tc->flag, NULL),
+ tc->exp_errno,
+ "mounting %s",
+ tc->desc);
- TEST_PAUSE;
+ if (tc->cleanup)
+ tc->cleanup();
}
-static void cleanup(void)
-{
- if (device)
- tst_release_device(device);
-
- tst_rmdir();
-}
+static struct tst_test test = {
+ .tcnt = ARRAY_SIZE(test_cases),
+ .test = run,
+ .setup = setup,
+ .cleanup = cleanup,
+ .needs_root = 1,
+ .format_device = 1,
+ .mntpoint = MNTPOINT,
+};
--
2.35.3
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