1/*
2 *
3 *   Copyright (c) International Business Machines  Corp., 2002
4 *
5 *   This program is free software;  you can redistribute it and/or modify
6 *   it under the terms of the GNU General Public License as published by
7 *   the Free Software Foundation; either version 2 of the License, or
8 *   (at your option) any later version.
9 *
10 *   This program is distributed in the hope that it will be useful,
11 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
12 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
13 *   the GNU General Public License for more details.
14 *
15 *   You should have received a copy of the GNU General Public License
16 *   along with this program;  if not, write to the Free Software
17 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20/*
21 * NAME
22 * 	mlock01.c
23 *
24 * DESCRIPTION
25 * 	Test to see that mlock works
26 *$
27 * ALGORITHM
28 * 	test 1:
29 *		Call mlock with various valid addresses and lengths.  No
30 *		error should be returned
31 *
32 * USAGE:  <for command-line>
33 *         -c n    Run n copies concurrently
34 *         -e      Turn on errno logging
35 *         -f      Turn off functional testing
36 *         -h      Show this help screen
37 *         -i n    Execute test n times
38 *         -I x    Execute test for x seconds
39 *         -p      Pause for SIGUSR1 before starting
40 *         -P x    Pause for x seconds between iterations
41 *         -t      Turn on syscall timing
42 *
43 * HISTORY
44 *	06/2002 Written by Paul Larson
45 *
46 * RESTRICTIONS
47 * 	None
48 */
49#include <errno.h>
50#include <unistd.h>
51#include <sys/mman.h>
52#include "test.h"
53
54void setup();
55void setup1(int);
56void cleanup();
57
58char *TCID = "mlock01";
59int TST_TOTAL = 4;
60
61void *addr1;
62
63struct test_case_t {
64	void **addr;
65	int len;
66	void (*setupfunc) ();
67} TC[] = {
68	/* mlock should return ENOMEM when some or all of the address
69	 * range pointed to by addr and len are not valid mapped pages
70	 * in the address space of the process
71	 */
72	{
73	&addr1, 1, setup1}, {
74	&addr1, 1024, setup1}, {
75	&addr1, 1024 * 1024, setup1}, {
76	&addr1, 1024 * 1024 * 10, setup1}
77};
78
79#if !defined(UCLINUX)
80
81int main(int ac, char **av)
82{
83	int lc, i;
84
85	tst_parse_opts(ac, av, NULL, NULL);
86
87	setup();
88
89	/*
90	 * FIXME (garrcoop): this should really test out whether or not the
91	 * process's mappable address space is indeed accessible by the
92	 * current user, instead of needing to be run by root all the time.
93	 */
94	tst_require_root();
95
96	for (lc = 0; TEST_LOOPING(lc); lc++) {
97
98		tst_count = 0;
99
100		for (i = 0; i < TST_TOTAL; i++) {
101
102			if (TC[i].setupfunc != NULL)
103				TC[i].setupfunc(TC[i].len);
104
105			TEST(mlock(*(TC[i].addr), TC[i].len));
106
107			/* I'm confused -- given the description above this
108			 * should fail as designed, but this application
109			 * */
110			if (TEST_RETURN == -1)
111				tst_resm(TFAIL | TTERRNO, "mlock failed");
112			else
113				tst_resm(TPASS, "mlock passed");
114		}
115	}
116
117	cleanup();
118
119	tst_exit();
120}
121
122#else
123
124int main(void)
125{
126	tst_brkm(TCONF, NULL, "test is not available on uClinux");
127}
128
129#endif /* if !defined(UCLINUX) */
130
131void setup(void)
132{
133	TEST_PAUSE;
134}
135
136void setup1(int len)
137{
138	addr1 = malloc(len);
139	if (addr1 == NULL)
140		tst_brkm(TFAIL, cleanup, "malloc failed");
141}
142
143void cleanup(void)
144{
145}
146