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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.
*
* It is designed to test XLOOP_CHANGE_FD can not succeed (get EINVAL error)
* when xloop_dev is not read only.
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include "lapi/xloop.h"
#include "tst_test.h"
static char dev_path[1024];
static int dev_num, dev_fd, file_fd, attach_flag;
static void verify_ioctl_xloop(void)
{
TEST(ioctl(dev_fd, XLOOP_CHANGE_FD, file_fd));
if (TST_RET == 0) {
tst_res(TFAIL, "XLOOP_CHANGE_FD succeeded unexpectedly");
return;
}
if (TST_ERR == EINVAL)
tst_res(TPASS | TTERRNO, "XLOOP_CHANGE_FD failed as expected");
else
tst_res(TFAIL | TTERRNO, "XLOOP_CHANGE_FD failed expected EINVAL got");
}
static void setup(void)
{
struct xloop_info xloopinfoget;
memset(&xloopinfoget, 0, sizeof(xloopinfoget));
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, 10);
tst_attach_device(dev_path, "test.img");
attach_flag = 1;
dev_fd = SAFE_OPEN(dev_path, O_RDWR);
file_fd = SAFE_OPEN("test.img", O_RDWR);
SAFE_IOCTL(dev_fd, XLOOP_GET_STATUS, &xloopinfoget);
if (xloopinfoget.xlo_flags & XLO_FLAGS_READ_ONLY)
tst_brk(TCONF, "Current environment has unexpected XLO_FLAGS_READ_ONLY flag");
}
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_all = verify_ioctl_xloop,
.needs_root = 1,
.needs_tmpdir = 1,
.needs_drivers = (const char *const []) {
"xloop",
"xloop_file_fmt_raw",
NULL
}
};
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