85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (c) 2022 Petr Vorel <pvorel@suse.cz>
|
|
* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
|
|
* Author: Madhu T L <madhu.tarikere@wipro.com>
|
|
*/
|
|
|
|
/*\
|
|
* [Description]
|
|
*
|
|
* Verify that syslog(2) system call fails with appropriate error number:
|
|
*
|
|
* 1. EINVAL -- invalid type/command
|
|
* 2. EFAULT -- buffer outside program's accessible address space
|
|
* 3. EINVAL -- NULL buffer argument
|
|
* 4. EINVAL -- length argument set to negative value
|
|
* 5. EINVAL -- console level less than 0
|
|
* 6. EINVAL -- console level greater than 8
|
|
* 7. EPERM -- non-root user
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <pwd.h>
|
|
|
|
#include "tst_test.h"
|
|
#include "lapi/syscalls.h"
|
|
#include "tst_safe_macros.h"
|
|
|
|
#define syslog(arg1, arg2, arg3) tst_syscall(__NR_syslog, arg1, arg2, arg3)
|
|
|
|
static char buf;
|
|
static struct passwd *ltpuser;
|
|
|
|
static void setup(void)
|
|
{
|
|
ltpuser = SAFE_GETPWNAM("nobody");
|
|
}
|
|
|
|
static void setup_nonroot(void)
|
|
{
|
|
SAFE_SETEGID(ltpuser->pw_gid);
|
|
SAFE_SETEUID(ltpuser->pw_uid);
|
|
}
|
|
|
|
static void cleanup_nonroot(void)
|
|
{
|
|
SAFE_SETEUID(0);
|
|
}
|
|
|
|
static struct tcase {
|
|
int type;
|
|
char *buf;
|
|
int len;
|
|
int exp_errno;
|
|
char *desc;
|
|
} tcases[] = {
|
|
{100, &buf, 0, EINVAL, "invalid type/command"},
|
|
{2, NULL, 0, EINVAL, "NULL buffer argument"},
|
|
{3, &buf, -1, EINVAL, "negative length argument"},
|
|
{8, &buf, -1, EINVAL, "console level less than 0"},
|
|
{8, &buf, 9, EINVAL, "console level greater than 8"},
|
|
{2, &buf, 0, EPERM, "non-root user"},
|
|
};
|
|
|
|
static void run(unsigned int n)
|
|
{
|
|
struct tcase *tc = &tcases[n];
|
|
|
|
if (n == ARRAY_SIZE(tcases)-1)
|
|
setup_nonroot();
|
|
|
|
TST_EXP_FAIL(syslog(tc->type, tc->buf, tc->len), tc->exp_errno,
|
|
"syslog() with %s", tc->desc);
|
|
|
|
if (n == ARRAY_SIZE(tcases)-1)
|
|
cleanup_nonroot();
|
|
}
|
|
|
|
static struct tst_test test = {
|
|
.test = run,
|
|
.setup = setup,
|
|
.needs_root = 1,
|
|
.tcnt = ARRAY_SIZE(tcases),
|
|
};
|