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/*
* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
/**************************************************************************
*
* TEST IDENTIFIER : munlock02
*
* EXECUTED BY : root / superuser
*
* TEST TITLE : Test for checking basic error conditions for
* munlock(2)
*
* TEST CASE TOTAL : 2
*
* AUTHOR : Nirmala Devi Dhanasekar <nirmala.devi@wipro.com>
*
* SIGNALS
* Uses SIGUSR1 to pause before test if option set.
* (See the parse_opts(3) man page).
*
* DESCRIPTION
* Check for basic errors returned by munlock(2) system call.
*
* Verify that munlock(2) returns -1 and sets errno to
*
* 1) ENOMEM - Some of the specified address range does not correspond to
* mapped pages in the address space of the process.
*
* Setup:
* Setup signal handling.
* Pause for SIGUSR1 if option specified.
*
* Test:
* Loop if the proper options are given.
* Do necessary setup for each test.
* Execute system call
* Check return code, if system call failed (return=-1)
* Log the errno and Issue a FAIL message.
* Otherwise, Issue a PASS message.
*
* Cleanup:
* Print errno log and/or timing stats if options given
*
* USAGE: <for command-line>
* munlock02 [-c n] [-e] [-i n] [-I x] [-p x] [-t]
* where, -c n : Run n copies concurrently
* -e : Turn on errno logging.
* -h : Show this help screen
* -i n : Execute test n times.
* -I x : Execute test for x seconds.
* -p : Pause for SIGUSR1 before starting
* -P x : Pause for x seconds between iterations.
* -t : Turn on syscall timing.
*
* RESTRICTIONS
* Test must run as root.
*****************************************************************************/
#include <errno.h>
#include <unistd.h>
#include <sys/mman.h>
#include <pwd.h>
#include "test.h"
#include "usctest.h"
void setup();
void cleanup();
char *TCID = "munlock02"; /* Test program identifier. */
int TST_TOTAL = 1; /* Total number of test cases. */
int exp_enos[] = { ENOMEM, 0 };
#define LEN 1024
void *addr1;
struct test_case_t {
void *addr;
int len;
int error;
char *edesc;
} TC[] = {
{
NULL, 0, ENOMEM, "address range out of address space"},};
#if !defined(UCLINUX)
int main(int ac, char **av)
{
int lc, i;
char *msg;
if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) {
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
tst_exit();
}
setup();
/* check looping state */
for (lc = 0; TEST_LOOPING(lc); lc++) {
Tst_count = 0;
for (i = 0; i < TST_TOTAL; i++) {
#ifdef __ia64__
TC[0].len = 8 * getpagesize();
#endif
TEST(munlock(TC[i].addr, TC[i].len));
/* check return code */
if (TEST_RETURN == -1) {
TEST_ERROR_LOG(TEST_ERRNO);
if (TEST_ERRNO != TC[i].error)
tst_brkm(TFAIL, cleanup,
"munlock() Failed with wrong "
"errno, expected errno=%s, "
"got errno=%d : %s",
TC[i].edesc, TEST_ERRNO,
strerror(TEST_ERRNO));
else
tst_resm(TPASS,
"expected failure - errno "
"= %d : %s",
TEST_ERRNO,
strerror(TEST_ERRNO));
} else {
tst_brkm(TFAIL, cleanup,
"munlock() Failed, expected "
"return value=-1, got %ld",
TEST_RETURN);
}
}
}
/* cleanup and exit */
cleanup();
tst_exit();
}
/* setup() - performs all ONE TIME setup for this test. */
void setup()
{
char *address;
tst_sig(FORK, DEF_HANDLER, cleanup);
/* set the expected errnos... */
TEST_EXP_ENOS(exp_enos);
TC[0].len = 8 * getpagesize();
address = mmap(0, TC[0].len, PROT_READ | PROT_WRITE,
MAP_PRIVATE_EXCEPT_UCLINUX | MAP_ANONYMOUS, 0, 0);
if (address == MAP_FAILED)
tst_brkm(TFAIL, cleanup, "mmap_failed");
memset(address, 0x20, TC[0].len);
TEST(mlock(address, TC[0].len));
/* check return code */
if (TEST_RETURN == -1) {
tst_brkm(TFAIL | TTERRNO, cleanup,
"mlock(%p, %d) Failed with return=%ld", address,
TC[0].len, TEST_RETURN);
}
TC[0].addr = address;
/*
* unmap part of the area, to create the condition for ENOMEM
*/
address += 2 * getpagesize();
munmap(address, 4 * getpagesize());
TEST_PAUSE;
return;
}
#else
int main()
{
tst_resm(TINFO, "test is not available on uClinux");
tst_exit();
}
#endif /* if !defined(UCLINUX) */
/*
* cleanup() - performs all ONE TIME cleanup for this test at
* completion or premature exit.
*/
void cleanup()
{
TEST_CLEANUP;
return;
}