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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2020 FUJITSU LIMITED. All rights reserved.
* Author: Yang Xu <xuyang2018.jy@cn.jujitsu.com>
*
* This is a basic ioctl test about xloopdevice XLOOP_SET_STATUS64
* and XLOOP_GET_STATUS64.
* Test its xlo_sizelimit field. If xlo_sizelimit is 0,it means max
* available. If sizelimit is less than xloop_size, xloopsize will
* be truncated.
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <stdlib.h>
#include "lapi/xloop.h"
#include "tst_test.h"
static char dev_path[1024], sys_xloop_sizepath[1024], sys_xloop_sizelimitpath[1024];
static int dev_num, dev_fd, file_fd, attach_flag;
static struct tcase {
unsigned int set_sizelimit;
unsigned int exp_xloopsize;
char *message;
} tcases[] = {
{1024 * 4096, 2048, "When sizelimit is greater than xloopsize "},
{1024 * 512, 1024, "When sizelimit is less than xloopsize"},
};
static void verify_ioctl_xloop(unsigned int n)
{
struct tcase *tc = &tcases[n];
struct xloop_info64 xloopinfo, xloopinfoget;
tst_res(TINFO, "%s", tc->message);
memset(&xloopinfo, 0, sizeof(xloopinfo));
memset(&xloopinfoget, 0, sizeof(xloopinfoget));
xloopinfo.xlo_sizelimit = tc->set_sizelimit;
TST_RETRY_FUNC(ioctl(dev_fd, XLOOP_SET_STATUS64, &xloopinfo), TST_RETVAL_EQ0);
TST_ASSERT_INT(sys_xloop_sizepath, tc->exp_xloopsize);
TST_ASSERT_INT(sys_xloop_sizelimitpath, tc->set_sizelimit);
SAFE_IOCTL(dev_fd, XLOOP_GET_STATUS64, &xloopinfoget);
if (xloopinfoget.xlo_sizelimit == tc->set_sizelimit)
tst_res(TPASS, "XLOOP_GET_STATUS64 gets correct xlo_sizelimit(%d)", tc->set_sizelimit);
else
tst_res(TFAIL, "XLOOP_GET_STATUS64 gets wrong xlo_sizelimit(%llu), expect %d",
xloopinfoget.xlo_sizelimit, tc->set_sizelimit);
/*Reset*/
xloopinfo.xlo_sizelimit = 0;
TST_RETRY_FUNC(ioctl(dev_fd, XLOOP_SET_STATUS, &xloopinfo), TST_RETVAL_EQ0);
}
static void setup(void)
{
dev_num = tst_find_free_xloopdev(dev_path, sizeof(dev_path));
if (dev_num < 0)
tst_brk(TBROK, "Failed to find free xloop device");
tst_fill_file("test.img", 0, 1024 * 1024, 1);
tst_attach_device(dev_path, "test.img");
attach_flag = 1;
sprintf(sys_xloop_sizepath, "/sys/block/xloop%d/size", dev_num);
sprintf(sys_xloop_sizelimitpath, "/sys/block/xloop%d/xloop/sizelimit", dev_num);
dev_fd = SAFE_OPEN(dev_path, O_RDWR);
tst_res(TINFO, "original xloop size 2048 sectors");
}
static void cleanup(void)
{
if (dev_fd > 0)
SAFE_CLOSE(dev_fd);
if (file_fd > 0)
SAFE_CLOSE(file_fd);
if (attach_flag)
tst_detach_device(dev_path);
}
static struct tst_test test = {
.setup = setup,
.cleanup = cleanup,
.test = verify_ioctl_xloop,
.tcnt = ARRAY_SIZE(tcases),
.needs_root = 1,
.needs_tmpdir = 1,
.needs_drivers = (const char *const []) {
"xloop",
"xloop_file_fmt_raw",
NULL
}
};
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