[CRIU] [PATCH v4 6/6] zdtm: Add unlink_regular00 test

[Kirill Tkhai]

On 27.01.2016 17:11, Pavel Emelyanov wrote:
> On 01/25/2016 07:40 PM, Kirill Tkhai wrote:
>> Test checks that a deleted file content in a deleted parent directory
>> restores right. Initially directory is created in a separate mount,
>> to check the ghost file is created in right mount and link() in
>> rfi_remap() is working.
> 
> That's test for ghost files, how about the one for link remaps?

Hm. But how is it touched by my patch?
 
>> Signed-off-by: Kirill Tkhai <ktkhai at virtuozzo.com>
>> ---
>>  test/zdtm/live/static/Makefile              |    1 
>>  test/zdtm/live/static/unlink_regular00.c    |  100 +++++++++++++++++++++++++++
>>  test/zdtm/live/static/unlink_regular00.desc |    1 
>>  3 files changed, 102 insertions(+)
>>  create mode 100644 test/zdtm/live/static/unlink_regular00.c
>>  create mode 100644 test/zdtm/live/static/unlink_regular00.desc
>>
>> diff --git a/test/zdtm/live/static/Makefile b/test/zdtm/live/static/Makefile
>> index 357b784..60b5afc 100644
>> --- a/test/zdtm/live/static/Makefile
>> +++ b/test/zdtm/live/static/Makefile
>> @@ -224,6 +224,7 @@ TST_DIR		=				\
>>  		mnt_ext_master			\
>>  		mntns_deleted			\
>>  		binfmt_misc			\
>> +		unlink_regular00		\
>>  
>>  TST_DIR_FILE	=				\
>>  		chroot				\
>> diff --git a/test/zdtm/live/static/unlink_regular00.c b/test/zdtm/live/static/unlink_regular00.c
>> new file mode 100644
>> index 0000000..22adaf6
>> --- /dev/null
>> +++ b/test/zdtm/live/static/unlink_regular00.c
>> @@ -0,0 +1,100 @@
>> +#include <errno.h>
>> +#include <fcntl.h>
>> +#include <stdlib.h>
>> +#include <sys/types.h>
>> +#include <sys/stat.h>
>> +#include <sys/mount.h>
>> +#include <unistd.h>
>> +#include <string.h>
>> +#include <limits.h>
>> +
>> +#include "zdtmtst.h"
>> +
>> +const char *test_doc = "Checkpointing/restore of unlinked file inside unlinked directory";
>> +const char *test_author	= "Kirill Tkhai <ktkhai at virtuozzo.com>";
>> +
>> +char *dirname;
>> +TEST_OPTION(dirname, string, "directory name", 1);
>> +
>> +#define SUBDIR "subdir"
>> +#define FNAME "testfile"
>> +#define MSG "Hello!!!111"
>> +
>> +int main(int argc, char ** argv)
>> +{
>> +	char subdir[PATH_MAX], fname[PATH_MAX];
>> +	char buf[sizeof(MSG) + 1];
>> +	int fd, ret = -1;
>> +
>> +	test_init(argc, argv);
>> +
>> +	memset(buf, 0, sizeof(buf));
>> +
>> +	if (mkdir(dirname, 0777)) {
>> +		fail("can't create %s", dirname);
>> +		exit(1);
>> +	}
>> +
>> +	if (mount("none", dirname, "tmpfs", 0, "") < 0) {
>> +		fail("can't mount tmpfs to %s", dirname);
>> +		goto rm_topdir;
>> +	}
>> +
>> +	sprintf(subdir, "%s/" SUBDIR, dirname);
>> +
>> +	if (mkdir(subdir, 0777)) {
>> +		fail("can't create %s", subdir);
>> +		goto umount;
>> +	}
>> +
>> +	sprintf(fname, "%s/" SUBDIR "/" FNAME, dirname);
>> +
>> +	fd = open(fname, O_RDWR | O_CREAT, 0644);
>> +	if (fd < 0) {
>> +		fail("can't open %s", fname);
>> +		rmdir(subdir);
>> +		goto umount;
>> +	}
>> +
>> +	if (unlink(fname) || rmdir(subdir)) {
>> +		fail("can't unlink %s or %s", fname, subdir);
>> +		goto close_file;
>> +	}
>> +
>> +	if (write(fd, MSG, sizeof(MSG)) != sizeof(MSG)) {
>> +		fail("can't write %s", fname);
>> +		goto close_file;
>> +	}
>> +
>> +	test_daemon();
>> +	test_waitsig();
>> +
>> +	if (lseek(fd, 0, SEEK_SET) != 0) {
>> +		fail("can't lseek %s", fname);
>> +		goto close_file;
>> +	}
>> +
>> +	if (read(fd, buf, sizeof(MSG)) != sizeof(MSG)) {
>> +		fail("can't read %s", fname);
>> +		goto close_file;
>> +	}
>> +
>> +	if (strcmp(buf, MSG)) {
>> +		fail("content differs: %s, %s, sizeof=%d", buf, MSG, sizeof(MSG));
>> +		goto close_file;
>> +	}
>> +
>> +	ret = 0;
>> +	pass();
>> +
>> +close_file:
>> +	close(fd);
>> +umount:
>> +	if (umount(dirname) < 0)
>> +		pr_err("Can't umount\n");
>> +rm_topdir:
>> +	if (rmdir(dirname) < 0)
>> +		pr_err("Can't rmdir()\n");
>> +
>> +	return ret;
>> +}
>> diff --git a/test/zdtm/live/static/unlink_regular00.desc b/test/zdtm/live/static/unlink_regular00.desc
>> new file mode 100644
>> index 0000000..dfe829b
>> --- /dev/null
>> +++ b/test/zdtm/live/static/unlink_regular00.desc
>> @@ -0,0 +1 @@
>> +{'flavor': 'ns', 'flags': 'suid'}
>>
>> .
>>
>