| /* |
| * 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; |
| } |