1 /*
2 * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * You should have received a copy of the GNU General Public License along
13 * with this program; if not, write the Free Software Foundation, Inc.,
14 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
15 *
16 */
17 /**************************************************************************
18 *
19 * TEST IDENTIFIER : sysfs(2)
20 *
21 *
22 * EXECUTED BY : anyone
23 *
24 * TEST TITLE : Test checking for basic error conditions
25 * for sysfs(2)
26 *
27 * TEST CASE TOTAL : 3
28 *
29 * AUTHOR : Aniruddha Marathe <aniruddha.marathe@wipro.com>
30 *
31 * SIGNALS
32 * Uses SIGUSR1 to pause before test if option set.
33 * (See the parse_opts(3) man page).
34 *
35 * DESCRIPTION
36 * This test case checks whether sysfs(2) system call returns
37 * appropriate error number for invalid
38 * option and for invalid filesystem index and when
39 * buffer is out of address space
40 *
41 * Setup:
42 * Setup signal handling.
43 * Pause for SIGUSR1 if option specified.
44 *
45 * Test:
46 * Loop if the proper options are given.
47 * Execute system call with invaid option parameter and for
48 * invalid filesystem index
49 * Check return code, if system call fails with errno == expected errno
50 * Issue syscall passed with expected errno
51 * Otherwise,
52 * Issue syscall failed to produce expected errno
53 *
54 * Cleanup:
55 * Do cleanup for the test.
56 *
57 * USAGE: <for command-line>
58 * sysfs06 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p]
59 * where:
60 * -c n : Run n copies simultaneously
61 * -e : Turn on errno logging.
62 * -i n : Execute test n times.
63 * -I x : Execute test for x seconds.
64 * -p : Pause for SIGUSR1 before starting
65 * -P x : Pause for x seconds between iterations.
66 * -t : Turn on syscall timing.
67 *
68 *RESTRICTIONS:
69 *There is no libc or glibc support
70 *****************************************************************************/
71
72 #include <errno.h>
73 #include <sys/syscall.h>
74 #include <sys/mman.h>
75 #include "test.h"
76 #include "lapi/syscalls.h"
77
78 static void setup();
79 static void cleanup();
80
81 char *TCID = "sysfs06";
82 static int option[3] = { 2, 4, 2 }; /* valid and invalid option */
83 static int fsindex[3] = { 10000, 0, 1 }; /*invalid and valid fsindex */
84
85 static struct test_case_t {
86 char *err_desc; /*error description */
87 int exp_errno; /* expected error number */
88 char *exp_errval; /*Expected errorvalue string */
89 } testcase[] = {
90 {
91 "Invalid option", EINVAL, "EINVAL"}, {
92 "fs_index is out of bounds", EINVAL, "EINVAL"}, {
93 "buf is outside your accessible address space", EFAULT, "EFAULT"}
94 };
95
96 int TST_TOTAL = ARRAY_SIZE(testcase);
97
98 char *bad_addr = 0;
99
main(int ac,char ** av)100 int main(int ac, char **av)
101 {
102 int lc, i;
103
104 tst_parse_opts(ac, av, NULL, NULL);
105
106 setup();
107
108 for (lc = 0; TEST_LOOPING(lc); lc++) {
109
110 for (i = 0; i < TST_TOTAL; i++) {
111
112 tst_count = 0;
113 TEST(ltp_syscall
114 (__NR_sysfs, option[i], fsindex[i], bad_addr));
115
116 /* check return code */
117 if ((TEST_RETURN == -1)
118 && (TEST_ERRNO == testcase[i].exp_errno)) {
119 tst_resm(TPASS,
120 "sysfs(2) expected failure;"
121 " Got errno - %s : %s",
122 testcase[i].exp_errval,
123 testcase[i].err_desc);
124 } else {
125 tst_resm(TFAIL, "sysfs(2) failed to produce"
126 " expected error; %d, errno"
127 ": %s and got %d",
128 testcase[i].exp_errno,
129 testcase[i].exp_errval, TEST_ERRNO);
130 }
131 } /*End of TEST LOOPS */
132 }
133
134 /*Clean up and exit */
135 cleanup();
136
137 tst_exit();
138 } /*End of main */
139
140 /* setup() - performs all ONE TIME setup for this test */
setup(void)141 void setup(void)
142 {
143
144 tst_sig(NOFORK, DEF_HANDLER, cleanup);
145
146 TEST_PAUSE;
147
148 bad_addr =
149 mmap(0, 1, PROT_NONE, MAP_PRIVATE_EXCEPT_UCLINUX | MAP_ANONYMOUS, 0,
150 0);
151 if (bad_addr == MAP_FAILED)
152 tst_brkm(TBROK, cleanup, "mmap failed");
153 }
154
155 /*
156 * cleanup() - Performs one time cleanup for this test at
157 * completion or premature exit
158 */
cleanup(void)159 void cleanup(void)
160 {
161
162 }
163