[LTP] [PATCH v4 1/2] syscalls/statfs02, fstatfs02: Convert to new API

Tudor Cretu tudor.cretu@arm.com
Wed Sep 21 15:26:50 CEST 2022



On 21-09-2022 13:55, Cyril Hrubis wrote:
> Hi!
>> Refactor statfs02 and fstatfs02 to the new LTP API.
> 
> Give that we are getting close to release I did fix the remaning
> problems and pushed the patches, thanks. See below for details.

The changes look good! Thank you for fixing the patch and pushing it!

Thanks,
Tudor

> 
>> Signed-off-by: Tudor Cretu <tudor.cretu@arm.com>
>> ---
>>   testcases/kernel/syscalls/fstatfs/fstatfs02.c | 102 +++++-------------
>>   testcases/kernel/syscalls/statfs/statfs02.c   |  97 ++++-------------
>>   2 files changed, 47 insertions(+), 152 deletions(-)
>>
>> diff --git a/testcases/kernel/syscalls/fstatfs/fstatfs02.c b/testcases/kernel/syscalls/fstatfs/fstatfs02.c
>> index db2230f82..4267bd02b 100644
>> --- a/testcases/kernel/syscalls/fstatfs/fstatfs02.c
>> +++ b/testcases/kernel/syscalls/fstatfs/fstatfs02.c
>> @@ -1,37 +1,19 @@
>> +// SPDX-License-Identifier: GPL-2.0-or-later
>>   /*
>>    * Copyright (c) International Business Machines  Corp., 2001
>> - *
>> - * This program is free software;  you can redistribute it and/or modify
>> - * it under the terms of the GNU General Public License as published by
>> - * the Free Software Foundation; either version 2 of the License, or
>> - * (at your option) any later version.
>> - *
>> - * This program is distributed in the hope that it will be useful,
>> - * but WITHOUT ANY WARRANTY;  without even the implied warranty of
>> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
>> - * the GNU General Public License for more details.
>> - *
>> - * You should have received a copy of the GNU General Public License
>> - * along with this program;  if not, write to the Free Software
>> - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
>>    */
>>   
>>   /*
>> - * DESCRIPTION
>> + * [Description]
>>    *	Testcase to check fstatfs() sets errno correctly.
>>    */
> 
> This is not proper documentation comment. Documentation comment has to
> start with /*\ and the content is asciidoc formatted.
> 
>> -#include <sys/vfs.h>
>> +#include <errno.h>
>>   #include <sys/types.h>
>>   #include <sys/statfs.h>
>> -#include <errno.h>
>> -#include "test.h"
>> -#include "safe_macros.h"
>> -
>> -static void setup(void);
>> -static void cleanup(void);
>> -
>> -char *TCID = "fstatfs02";
>> +#include <sys/wait.h>
>> +#include "tst_test.h"
>> +#include "tst_safe_macros.h"
>>   
>>   static struct statfs buf;
>>   
>> @@ -39,76 +21,40 @@ static struct test_case_t {
>>   	int fd;
>>   	struct statfs *sbuf;
>>   	int error;
>> -} TC[] = {
>> +} tests[] = {
>>   	/* EBADF - fd is invalid */
>> -	{
>> -	-1, &buf, EBADF},
>> +	{-1, &buf, EBADF},
>>   #ifndef UCLINUX
>> -	    /* Skip since uClinux does not implement memory protection */
>> -	    /* EFAULT - address for buf is invalid */
>> -	{
>> -	-1, (void *)-1, EFAULT}
>> +	/* Skip since uClinux does not implement memory protection */
>> +	/* EFAULT - address for buf is invalid */
>> +	{-1, (void *)-1, EFAULT},
>>   #endif
> 
> UCLINUX does not exists anymore so we are removing all UCLINUX ifdefs
> when cleaning up tests.
> 
>>   };
>>   
>> -int TST_TOTAL = ARRAY_SIZE(TC);
>> -
>> -int main(int ac, char **av)
>> +static void fstatfs_verify(unsigned int n)
>>   {
>> -	int lc;
>> -	int 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++) {
>> -
>> -			TEST(fstatfs(TC[i].fd, TC[i].sbuf));
>> -
>> -			if (TEST_RETURN != -1) {
>> -				tst_resm(TFAIL, "call succeeded unexpectedly");
>> -				continue;
>> -			}
>> -
>> -			if (TEST_ERRNO == TC[i].error) {
>> -				tst_resm(TPASS, "expected failure - "
>> -					 "errno = %d : %s", TEST_ERRNO,
>> -					 strerror(TEST_ERRNO));
>> -			} else {
>> -				tst_resm(TFAIL, "unexpected error - %d : %s - "
>> -					 "expected %d", TEST_ERRNO,
>> -					 strerror(TEST_ERRNO), TC[i].error);
>> -			}
>> -		}
>> -	}
>> -	cleanup();
>> -
>> -	tst_exit();
>> +	TST_EXP_FAIL(fstatfs(tests[n].fd, tests[n].sbuf), tests[n].error, "fstatfs()");
>>   }
>>   
>>   static void setup(void)
>>   {
>> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
>> -
>> -	TEST_PAUSE;
>> -
>> -	tst_tmpdir();
>>   #ifndef UCLINUX
>> -	TC[1].fd = SAFE_OPEN(cleanup, "tempfile", O_RDWR | O_CREAT, 0700);
>> +	tests[1].fd = SAFE_OPEN("tempfile", O_RDWR | O_CREAT, 0700);
>>   #endif
> 
> Indexing the the tests array like this is frowned upon, we usually use
> pointers in the test structure instead.
> 
>>   }
>>   
>>   static void cleanup(void)
>>   {
>>   #ifndef UCLINUX
>> -	if (TC[1].fd > 0 && close(TC[1].fd))
>> -		tst_resm(TWARN | TERRNO, "Failed to close fd");
>> +	if (tests[1].fd > 0 && close(tests[1].fd))
>> +		tst_res(TWARN | TERRNO, "Failed to close fd");
> 
> This should be just:
> 
> 	if (fd > 0)
> 		SAFE_CLOSE();
> 
>>   #endif
>> -
>> -	tst_rmdir();
>>   }
>> +
>> +static struct tst_test test = {
>> +	.test = fstatfs_verify,
>> +	.tcnt = ARRAY_SIZE(tests),
>> +	.setup = setup,
>> +	.cleanup = cleanup,
>> +	.needs_tmpdir = 1,
>> +};
>> diff --git a/testcases/kernel/syscalls/statfs/statfs02.c b/testcases/kernel/syscalls/statfs/statfs02.c
>> index 279665f86..f906c84ff 100644
>> --- a/testcases/kernel/syscalls/statfs/statfs02.c
>> +++ b/testcases/kernel/syscalls/statfs/statfs02.c
>> @@ -1,24 +1,12 @@
>> +// SPDX-License-Identifier: GPL-2.0-or-later
>>   /*
>>    * Copyright (c) International Business Machines  Corp., 2001
>>    *	07/2001 Ported by Wayne Boyer
>>    *
>> - * This program is free software;  you can redistribute it and/or modify
>> - * it under the terms of the GNU General Public License as published by
>> - * the Free Software Foundation; either version 2 of the License, or
>> - * (at your option) any later version.
>> - *
>> - * This program is distributed in the hope that it will be useful,
>> - * but WITHOUT ANY WARRANTY;  without even the implied warranty of
>> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
>> - * the GNU General Public License for more details.
>> - *
>> - * You should have received a copy of the GNU General Public License
>> - * along with this program;  if not, write to the Free Software
>> - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
>>    */
>>   
>>   /*
>> - * DESCRIPTION
>> + * [Description]
>>    *	1.	Use a component of the pathname, which is not a directory
>>    *		in the "path" parameter to statfs(). Expect ENOTDIR
>>    *	2.	Pass a filename which doesn't exist, and expect ENOENT.
>> @@ -32,25 +20,19 @@
>>    *		ELOOP.
>>    */
> 
> Here as well, it has to start with /*\ and asciidoc formatted
> 
>> -#include <sys/types.h>
>> -#include <sys/statfs.h>
>> -#include <sys/stat.h>
>> -#include <fcntl.h>
>> -#include <sys/vfs.h>
>> -#include <sys/mman.h>
>>   #include <errno.h>
>> -#include "test.h"
>> -#include "safe_macros.h"
>> -
>> -char *TCID = "statfs02";
>> -
>> -static int fd;
>> +#include <fcntl.h>
>> +#include <sys/statfs.h>
>> +#include <sys/wait.h>
>> +#include "tst_test.h"
>> +#include "tst_safe_macros.h"
>>   
>>   #define TEST_FILE		"statfs_file"
>>   #define TEST_FILE1		TEST_FILE"/statfs_file1"
>>   #define TEST_NOEXIST		"statfs_noexist"
>>   #define TEST_SYMLINK		"statfs_symlink"
>>   
>> +static int fd;
>>   static char test_toolong[PATH_MAX+2];
>>   static struct statfs buf;
>>   
>> @@ -58,7 +40,7 @@ static struct test_case_t {
>>   	char *path;
>>   	struct statfs *buf;
>>   	int exp_error;
>> -} TC[] = {
>> +} tests[] = {
>>   	{TEST_FILE1, &buf, ENOTDIR},
>>   	{TEST_NOEXIST, &buf, ENOENT},
>>   	{test_toolong, &buf, ENAMETOOLONG},
>> @@ -69,72 +51,39 @@ static struct test_case_t {
>>   	{TEST_SYMLINK, &buf, ELOOP},
>>   };
>>   
>> -int TST_TOTAL = ARRAY_SIZE(TC);
>>   static void setup(void);
>>   static void cleanup(void);
> 
> These two are useless now.
> 
>> -static void statfs_verify(const struct test_case_t *);
>>
>> -int main(int ac, char **av)
>> +static void statfs_verify(unsigned int n)
>>   {
>> -	int lc;
>> -	int 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++)
>> -			statfs_verify(&TC[i]);
>> -	}
>> -
>> -	cleanup();
>> -	tst_exit();
>> +	TST_EXP_FAIL(statfs(tests[n].path, tests[n].buf), tests[n].exp_error, "statfs()");
>>   }
>>   
>>   static void setup(void)
>>   {
>> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
>> -
>> -	TEST_PAUSE;
>> -
>> -	tst_tmpdir();
>> -
>> -	fd = SAFE_CREAT(cleanup, TEST_FILE, 0444);
>> +	fd = SAFE_CREAT(TEST_FILE, 0444);
>>   
>>   	memset(test_toolong, 'a', PATH_MAX+1);
>>   
>>   #if !defined(UCLINUX)
>> -	TC[3].path = SAFE_MMAP(cleanup, 0, 1, PROT_NONE,
>> +	tests[3].path = SAFE_MMAP(0, 1, PROT_NONE,
>>   			       MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
>>   #endif
> 
> And here as well.
> 
> Full diff:
> 
> diff --git a/testcases/kernel/syscalls/fstatfs/fstatfs02.c b/testcases/kernel/syscalls/fstatfs/fstatfs02.c
> index 4267bd02b..7f8fb760f 100644
> --- a/testcases/kernel/syscalls/fstatfs/fstatfs02.c
> +++ b/testcases/kernel/syscalls/fstatfs/fstatfs02.c
> @@ -3,9 +3,10 @@
>    * Copyright (c) International Business Machines  Corp., 2001
>    */
>   
> -/*
> +/*\
>    * [Description]
> - *	Testcase to check fstatfs() sets errno correctly.
> + *
> + * Testcase to check if fstatfs() sets errno correctly.
>    */
>   
>   #include <errno.h>
> @@ -17,38 +18,32 @@
>   
>   static struct statfs buf;
>   
> +static int fd;
> +static int bad_fd = -1;
> +
>   static struct test_case_t {
> -	int fd;
> +	int *fd;
>   	struct statfs *sbuf;
>   	int error;
>   } tests[] = {
> -	/* EBADF - fd is invalid */
> -	{-1, &buf, EBADF},
> -#ifndef UCLINUX
> -	/* Skip since uClinux does not implement memory protection */
> -	/* EFAULT - address for buf is invalid */
> -	{-1, (void *)-1, EFAULT},
> -#endif
> +	{&bad_fd, &buf, EBADF},
> +	{&fd, (void *)-1, EFAULT},
>   };
>   
>   static void fstatfs_verify(unsigned int n)
>   {
> -	TST_EXP_FAIL(fstatfs(tests[n].fd, tests[n].sbuf), tests[n].error, "fstatfs()");
> +	TST_EXP_FAIL(fstatfs(*tests[n].fd, tests[n].sbuf), tests[n].error, "fstatfs()");
>   }
>   
>   static void setup(void)
>   {
> -#ifndef UCLINUX
> -	tests[1].fd = SAFE_OPEN("tempfile", O_RDWR | O_CREAT, 0700);
> -#endif
> +	fd = SAFE_OPEN("tempfile", O_RDWR | O_CREAT, 0700);
>   }
>   
>   static void cleanup(void)
>   {
> -#ifndef UCLINUX
> -	if (tests[1].fd > 0 && close(tests[1].fd))
> -		tst_res(TWARN | TERRNO, "Failed to close fd");
> -#endif
> +	if (fd > 0)
> +		SAFE_CLOSE(fd);
>   }
>   
>   static struct tst_test test = {
> diff --git a/testcases/kernel/syscalls/statfs/statfs02.c b/testcases/kernel/syscalls/statfs/statfs02.c
> index f906c84ff..143063f19 100644
> --- a/testcases/kernel/syscalls/statfs/statfs02.c
> +++ b/testcases/kernel/syscalls/statfs/statfs02.c
> @@ -5,19 +5,15 @@
>    *
>    */
>   
> -/*
> +/*\
>    * [Description]
> - *	1.	Use a component of the pathname, which is not a directory
> - *		in the "path" parameter to statfs(). Expect ENOTDIR
> - *	2.	Pass a filename which doesn't exist, and expect ENOENT.
> - *	3.	Pass a pathname which is more than MAXNAMLEN, and expect
> - *		ENAMETOOLONG.
> - *	4.	Pass a pointer to the pathname outside the address space of
> - *		the process, and expect EFAULT.
> - *	5.	Pass a pointer to the buf paramter outside the address space
> - *		of the process, and expect EFAULT.
> - *	6.	Pass a filename which has too many symbolic links, and expect
> - *		ELOOP.
> + *
> + * - ENOTDIR A component of the pathname, which is not a directory.
> + * - ENOENT A filename which doesn't exist.
> + * - ENAMETOOLONG A pathname which is longer than MAXNAMLEN.
> + * - EFAULT A pathname pointer outside the address space of the process.
> + * - EFAULT A buf pointer outside the address space of the process.
> + * - ELOOP A filename which has too many symbolic links.
>    */
>   
>   #include <errno.h>
> @@ -44,16 +40,11 @@ static struct test_case_t {
>   	{TEST_FILE1, &buf, ENOTDIR},
>   	{TEST_NOEXIST, &buf, ENOENT},
>   	{test_toolong, &buf, ENAMETOOLONG},
> -#ifndef UCLINUX
>   	{(char *)-1, &buf, EFAULT},
>   	{TEST_FILE, (struct statfs *)-1, EFAULT},
> -#endif
>   	{TEST_SYMLINK, &buf, ELOOP},
>   };
>   
> -static void setup(void);
> -static void cleanup(void);
> -
>   static void statfs_verify(unsigned int n)
>   {
>   	TST_EXP_FAIL(statfs(tests[n].path, tests[n].buf), tests[n].exp_error, "statfs()");
> @@ -61,14 +52,16 @@ static void statfs_verify(unsigned int n)
>   
>   static void setup(void)
>   {
> +	unsigned int i;
> +
>   	fd = SAFE_CREAT(TEST_FILE, 0444);
>   
>   	memset(test_toolong, 'a', PATH_MAX+1);
>   
> -#if !defined(UCLINUX)
> -	tests[3].path = SAFE_MMAP(0, 1, PROT_NONE,
> -			       MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
> -#endif
> +	for (i = 0; i < ARRAY_SIZE(tests); i++) {
> +		if (tests[i].path == (char *)-1)
> +			tests[i].path = tst_get_bad_addr(NULL);
> +	}
>   
>   	SAFE_SYMLINK(TEST_SYMLINK, "statfs_symlink_2");
>   	SAFE_SYMLINK("statfs_symlink_2", TEST_SYMLINK);
> 
> 


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