1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) Wipro Technologies Ltd, 2002.  All Rights Reserved.
4 * Author: Madhu T L <madhu.tarikere@wipro.com>
5 */
6
7/*
8 * [Description]
9 *
10 * Verify that, syslog(2) is successful for type ranging from 1 to 8
11 */
12
13#include <errno.h>
14
15#include "tst_test.h"
16#include "lapi/syscalls.h"
17#include "tst_safe_macros.h"
18
19struct tcase {
20	int type;
21	char *buf;
22	int len;
23	char *desc;
24};
25
26static char buf;
27
28#define syslog(arg1, arg2, arg3) tst_syscall(__NR_syslog, arg1, arg2, arg3)
29
30static struct tcase tcases[] = {
31	/* Type 0 and 1 are currently not implemented, always returns success */
32	{0, &buf, 0, "type 0/Close the log"},
33	{1, &buf, 0, "type 1/Open the log"},
34	{2, &buf, 0, "type 2/Read from the log"},
35	{3, &buf, 0, "type 3/Read ring buffer"},
36	/*
37	 * Next two lines will clear dmesg.
38	 * Uncomment if that is okay. -Robbie Williamson
39	 */
40	/*
41	 * { 4, &buf, 0, "type 4/Read and clear ring buffer" },
42	 * { 5, &buf, 0, "type 5/Clear ring buffer" },
43	 */
44	{8, NULL, 1, "type 8/Set log level to 1"},
45	{8, NULL, 7, "type 8/Set log level to 7(default)"},
46	{6, NULL, 0, "type 6/Disable printk's to console"},
47	{7, NULL, 0, "type 7/Enable printk's to console"},
48};
49
50static void run(unsigned int n)
51{
52	struct tcase *tc = &tcases[n];
53
54	TST_EXP_PASS(syslog(tc->type, tc->buf, tc->len),
55			"syslog() with %s", tc->desc);
56}
57
58static struct tst_test test = {
59	.test = run,
60	.save_restore = (const struct tst_path_val[]) {
61		{"/proc/sys/kernel/printk", NULL, TST_SR_TBROK},
62		{}
63	},
64	.needs_root = 1,
65	.tcnt = ARRAY_SIZE(tcases),
66};
67