1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
// 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 error test about the invalid block size of xloopdevice
* by using XLOOP_SET_BLOCK_SIZE or XLOOP_CONFIGURE ioctl.
*/
#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];
static int dev_num, dev_fd, file_fd, attach_flag, xloop_configure_sup = 1;
static unsigned int invalid_value, half_value, unalign_value;
static struct xloop_config xloopconfig;
static struct tcase {
unsigned int *setvalue;
int ioctl_flag;
char *message;
} tcases[] = {
{&half_value, XLOOP_SET_BLOCK_SIZE,
"Using XLOOP_SET_BLOCK_SIZE with arg < 512"},
{&invalid_value, XLOOP_SET_BLOCK_SIZE,
"Using XLOOP_SET_BLOCK_SIZE with arg > PAGE_SIZE"},
{&unalign_value, XLOOP_SET_BLOCK_SIZE,
"Using XLOOP_SET_BLOCK_SIZE with arg != power_of_2"},
{&half_value, XLOOP_CONFIGURE,
"Using XLOOP_CONFIGURE with block_size < 512"},
{&invalid_value, XLOOP_CONFIGURE,
"Using XLOOP_CONFIGURE with block_size > PAGE_SIZE"},
{&unalign_value, XLOOP_CONFIGURE,
"Using XLOOP_CONFIGURE with block_size != power_of_2"},
};
static void verify_ioctl_xloop(unsigned int n)
{
if (tcases[n].ioctl_flag == XLOOP_CONFIGURE)
TEST(ioctl(dev_fd, XLOOP_CONFIGURE, &xloopconfig));
else
TEST(ioctl(dev_fd, XLOOP_SET_BLOCK_SIZE, *(tcases[n].setvalue)));
if (TST_RET == 0) {
tst_res(TFAIL, "Set block size succeed unexpectedly");
if (tcases[n].ioctl_flag == XLOOP_CONFIGURE)
tst_detach_device_by_fd(dev_path, dev_fd);
return;
}
if (TST_ERR == EINVAL)
tst_res(TPASS | TTERRNO, "Set block size failed as expected");
else
tst_res(TFAIL | TTERRNO, "Set block size failed expected EINVAL got");
}
static void run(unsigned int n)
{
struct tcase *tc = &tcases[n];
tst_res(TINFO, "%s", tc->message);
if (tc->ioctl_flag == XLOOP_SET_BLOCK_SIZE) {
if (!attach_flag) {
tst_attach_device(dev_path, "test.img");
attach_flag = 1;
}
verify_ioctl_xloop(n);
return;
}
if (tc->ioctl_flag == XLOOP_CONFIGURE && !xloop_configure_sup) {
tst_res(TCONF, "XLOOP_CONFIGURE ioctl not supported");
return;
}
if (attach_flag) {
tst_detach_device_by_fd(dev_path, dev_fd);
attach_flag = 0;
}
xloopconfig.block_size = *(tc->setvalue);
verify_ioctl_xloop(n);
}
static void setup(void)
{
unsigned int pg_size;
int ret;
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);
half_value = 256;
pg_size = getpagesize();
invalid_value = pg_size * 2 ;
unalign_value = pg_size - 1;
dev_fd = SAFE_OPEN(dev_path, O_RDWR);
if (ioctl(dev_fd, XLOOP_SET_BLOCK_SIZE, 512) && errno == EINVAL)
tst_brk(TCONF, "XLOOP_SET_BLOCK_SIZE is not supported");
file_fd = SAFE_OPEN("test.img", O_RDWR);
xloopconfig.fd = -1;
ret = ioctl(dev_fd, XLOOP_CONFIGURE, &xloopconfig);
if (ret && errno != EBADF) {
tst_res(TINFO | TERRNO, "XLOOP_CONFIGURE is not supported");
xloop_configure_sup = 0;
return;
}
xloopconfig.fd = file_fd;
}
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 = run,
.tcnt = ARRAY_SIZE(tcases),
.needs_root = 1,
.needs_tmpdir = 1,
.needs_drivers = (const char *const []) {
"xloop",
"xloop_file_fmt_raw",
NULL
}
};
|
