| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * Test Name: get_robust_list01 |
| * |
| * Test Description: |
| * Verify that get_robust_list() returns the proper errno for various failure |
| * cases |
| * |
| * Usage: <for command-line> |
| * get_robust_list01 [-c n] [-e][-i n] [-I x] [-p x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * History |
| * 07/2008 Ramon de Carvalho Valle <rcvalle@br.ibm.com> |
| * -Created |
| * |
| * Restrictions: |
| * None. |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| |
| #include <sys/syscall.h> |
| #include <sys/types.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| char *TCID = "get_robust_list01"; /* test program identifier. */ |
| int TST_TOTAL = 5; /* total number of tests in this file. */ |
| |
| #ifdef __NR_get_robust_list |
| |
| struct robust_list { |
| struct robust_list *next; |
| }; |
| |
| struct robust_list_head { |
| struct robust_list list; |
| long futex_offset; |
| struct robust_list *list_op_pending; |
| }; |
| |
| extern int Tst_count; /* counter for tst_xxx routines. */ |
| |
| int exp_enos[] = { ESRCH, EPERM, EFAULT, 0 }; |
| |
| void setup(void); |
| void cleanup(void); |
| |
| int main(int argc, char **argv) |
| { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| struct robust_list_head head; |
| size_t len_ptr; /* size of structure struct robust_list_head */ |
| int retval; |
| |
| msg = parse_opts(argc, argv, NULL, NULL); |
| if (msg != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| tst_exit(); |
| } |
| |
| setup(); |
| |
| len_ptr = sizeof(struct robust_list_head); |
| |
| for (lc = 0; TEST_LOOPING(lc); ++lc) { |
| Tst_count = 0; |
| |
| /* |
| * The get_robust_list function fails with EFAULT if the size of the |
| * struct robust_list_head can't be stored in the memory address space |
| * specified by len_ptr argument, or the head of the robust list can't |
| * be stored in the memory address space specified by the head_ptr |
| * argument. |
| */ |
| |
| TEST(retval = syscall(__NR_get_robust_list, 0, |
| (struct robust_list_head *)&head, |
| (size_t *) NULL)); |
| |
| if (TEST_RETURN) { |
| if (TEST_ERRNO == EFAULT) |
| tst_resm(TPASS, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", |
| TEST_RETURN, -1, TEST_ERRNO, EFAULT); |
| else |
| tst_resm(TFAIL, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", |
| TEST_RETURN, -1, TEST_ERRNO, EFAULT); |
| } else { |
| tst_resm(TFAIL, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", TEST_RETURN, -1, |
| TEST_ERRNO, EFAULT); |
| } |
| |
| TEST(retval = syscall(__NR_get_robust_list, 0, |
| (struct robust_list_head **)NULL, |
| &len_ptr)); |
| |
| if (TEST_RETURN) { |
| if (TEST_ERRNO == EFAULT) |
| tst_resm(TPASS, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", |
| TEST_RETURN, -1, TEST_ERRNO, EFAULT); |
| else |
| tst_resm(TFAIL, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", |
| TEST_RETURN, -1, TEST_ERRNO, EFAULT); |
| } else { |
| tst_resm(TFAIL, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", TEST_RETURN, -1, |
| TEST_ERRNO, EFAULT); |
| } |
| |
| /* |
| * The get_robust_list function fails with ESRCH if it can't find the |
| * task specified by the pid argument. The value 65535 is used as the |
| * pid argument. |
| */ |
| |
| TEST(retval = syscall(__NR_get_robust_list, 65535, |
| (struct robust_list_head *)&head, |
| &len_ptr)); |
| |
| if (TEST_RETURN) { |
| if (TEST_ERRNO == ESRCH) |
| tst_resm(TPASS, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", |
| TEST_RETURN, -1, TEST_ERRNO, ESRCH); |
| else |
| tst_resm(TFAIL, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", |
| TEST_RETURN, -1, TEST_ERRNO, ESRCH); |
| } else { |
| tst_resm(TFAIL, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", TEST_RETURN, -1, |
| TEST_ERRNO, ESRCH); |
| } |
| |
| /* |
| * The get_robust_list function fails with EPERM if it has no |
| * permission to access the task specified by the pid argument. |
| * The current user id of the process is changed to 1 (bin), and the |
| * value of 1 (init) is used as the pid argument. |
| */ |
| |
| /* |
| * Temporarily drop root privleges. |
| */ |
| seteuid(1); |
| |
| TEST(retval = syscall(__NR_get_robust_list, 1, |
| (struct robust_list_head *)&head, |
| &len_ptr)); |
| |
| if (TEST_RETURN) { |
| if (TEST_ERRNO == EPERM) |
| tst_resm(TPASS, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", |
| TEST_RETURN, -1, TEST_ERRNO, EPERM); |
| else |
| tst_resm(TFAIL, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", |
| TEST_RETURN, -1, TEST_ERRNO, EPERM); |
| } else { |
| tst_resm(TFAIL, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", TEST_RETURN, -1, |
| TEST_ERRNO, EPERM); |
| } |
| |
| /* |
| * Regain root privileges. |
| */ |
| seteuid(0); |
| |
| /* |
| * This call to get_robust_list function should be sucessful. |
| */ |
| |
| TEST(retval = syscall(__NR_get_robust_list, 0, |
| (struct robust_list_head **)&head, |
| &len_ptr)); |
| |
| if (TEST_RETURN == 0) { |
| tst_resm(TPASS, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", TEST_RETURN, 0, |
| TEST_ERRNO, 0); |
| } else { |
| tst_resm(TFAIL, |
| "get_robust_list: retval = %ld (expected %d), " |
| "errno = %d (expected %d)", TEST_RETURN, 0, |
| TEST_ERRNO, 0); |
| } |
| |
| } |
| |
| cleanup(); |
| |
| exit(EXIT_SUCCESS); |
| } |
| |
| void setup(void) |
| { |
| TEST_EXP_ENOS(exp_enos); |
| |
| TEST_PAUSE; |
| } |
| |
| void cleanup(void) |
| { |
| TEST_CLEANUP; |
| |
| tst_exit(); |
| } |
| |
| #else |
| |
| int main() |
| { |
| tst_resm(TCONF, "get_robust_list: system call not available"); |
| tst_exit(); |
| } |
| |
| #endif |