delete_module01.c revision aabb8340f63ed31afe995fd97795e542dc68b93c 
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 *    AUTHOR: Madhu T L <madhu.tarikere@wipro.com>
20 *
21 *    DESCRIPTION:
22 *    	Basic tests for delete_module(2)
23 *    	1) insmod dummy_del_mod.ko
24 *    	2) call delete_module(2) to remove dummy_del_mod.ko
25 */
26
27#include <errno.h>
28#include "test.h"
29#include "tst_module.h"
30#include "safe_macros.h"
31#include "linux_syscall_numbers.h"
32
33#define MODULE_NAME	"dummy_del_mod"
34#define MODULE_NAME_KO	"dummy_del_mod.ko"
35
36static void setup(void);
37static void cleanup(void);
38
39
40char *TCID = "delete_module01";
41int TST_TOTAL = 1;
42static int module_loaded;
43
44int main(int argc, char **argv)
45{
46	int lc;
47	const char *msg;
48
49	msg = parse_opts(argc, argv, NULL, NULL);
50	if (msg != NULL)
51		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
52
53	setup();
54
55	for (lc = 0; TEST_LOOPING(lc); lc++) {
56		tst_count = 0;
57
58		/* insert dummy_del_mod.ko */
59		if (module_loaded == 0) {
60			tst_module_load(NULL, MODULE_NAME_KO, NULL);
61			module_loaded = 1;
62		}
63
64		TEST(ltp_syscall(__NR_delete_module, MODULE_NAME, 0));
65		if (TEST_RETURN == -1) {
66			tst_resm(TFAIL | TTERRNO, "delete_module() failed to "
67				 "remove module entry for %s ", MODULE_NAME);
68		} else {
69			tst_resm(TPASS, "delete_module() successful");
70			module_loaded = 0;
71		}
72
73	}
74
75	cleanup();
76	tst_exit();
77}
78
79static void setup(void)
80{
81	tst_sig(NOFORK, DEF_HANDLER, cleanup);
82
83	tst_require_root(NULL);
84
85	TEST_PAUSE;
86}
87
88static void cleanup(void)
89{
90	if (module_loaded == 1)
91		tst_module_unload(NULL, MODULE_NAME_KO);
92}
93