vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of version 2 of the GNU General Public License as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it would be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 11 | * |
| 12 | * You should have received a copy of the GNU General Public License along |
Wanlong Gao | fed9641 | 2012-10-24 10:10:29 +0800 | [diff] [blame] | 13 | * with this program; if not, write the Free Software Foundation, Inc., |
| 14 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 15 | * |
| 16 | */ |
| 17 | /********************************************************** |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 18 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 19 | * TEST IDENTIFIER : sched_setparam05 |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 20 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 21 | * EXECUTED BY : root/superuser |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 22 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 23 | * TEST TITLE : verify that sched_setparam() fails if the user does |
| 24 | * not have proper privilages |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 25 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 26 | * TEST CASE TOTAL : 1 |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 27 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 28 | * AUTHOR : Saji Kumar.V.R <saji.kumar@wipro.com> |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 29 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 30 | * SIGNALS |
| 31 | * Uses SIGUSR1 to pause before test if option set. |
| 32 | * (See the parse_opts(3) man page). |
| 33 | * |
| 34 | * DESCRIPTION |
| 35 | * Verify that sched_setparam() fails if the user does |
| 36 | * not have proper privilages |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 37 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 38 | * Setup: |
| 39 | * Setup signal handling. |
| 40 | * Pause for SIGUSR1 if option specified. |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 41 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 42 | * Test: |
| 43 | * Loop if the proper options are given. |
| 44 | * Fork a child |
| 45 | * |
| 46 | * CHILD: |
| 47 | * Changes euid to "nobody" user. |
| 48 | * Try to Change scheduling priority for parent |
| 49 | * If call failed with errno = EPERM, |
| 50 | * Test passed |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 51 | * else |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 52 | * Test failed |
| 53 | * |
| 54 | * PARENT: |
| 55 | * wait for child to finish |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 56 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 57 | * Cleanup: |
| 58 | * Print errno log and/or timing stats if options given |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 59 | * |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 60 | * USAGE: <for command-line> |
| 61 | * sched_setparam05 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p] |
| 62 | * where, -c n : Run n copies concurrently. |
| 63 | * -e : Turn on errno logging. |
| 64 | * -h : Show help screen |
| 65 | * -f : Turn off functional testing |
| 66 | * -i n : Execute test n times. |
| 67 | * -I x : Execute test for x seconds. |
| 68 | * -p : Pause for SIGUSR1 before starting |
| 69 | * -P x : Pause for x seconds between iterations. |
| 70 | * -t : Turn on syscall timing. |
| 71 | * |
| 72 | ****************************************************************/ |
| 73 | |
| 74 | #include <errno.h> |
| 75 | #include <sched.h> |
| 76 | #include <pwd.h> |
| 77 | #include <sys/wait.h> |
| 78 | #include "test.h" |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 79 | |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 80 | static void setup(); |
| 81 | static void cleanup(); |
| 82 | |
Cyril Hrubis | fdce7d5 | 2013-04-04 18:35:48 +0200 | [diff] [blame] | 83 | char *TCID = "sched_setparam05"; |
| 84 | int TST_TOTAL = 1; |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 85 | |
| 86 | static struct sched_param param = { 0 }; |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 87 | |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 88 | static char nobody_uid[] = "nobody"; |
| 89 | struct passwd *ltpuser; |
| 90 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 91 | int main(int ac, char **av) |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 92 | { |
| 93 | |
Cyril Hrubis | 89af32a | 2012-10-24 16:39:11 +0200 | [diff] [blame] | 94 | int lc; |
Cyril Hrubis | 0b9589f | 2014-05-27 17:40:33 +0200 | [diff] [blame] | 95 | const char *msg; |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 96 | int status; |
| 97 | pid_t child_pid; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 98 | |
Garrett Cooper | 5374050 | 2010-12-16 00:04:01 -0800 | [diff] [blame] | 99 | if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame] | 100 | tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 101 | |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 102 | setup(); |
| 103 | |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 104 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
| 105 | |
Caspar Zhang | d59a659 | 2013-03-07 14:59:12 +0800 | [diff] [blame] | 106 | tst_count = 0; |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 107 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 108 | switch (child_pid = FORK_OR_VFORK()) { |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 109 | |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 110 | case -1: |
| 111 | /* fork() failed */ |
| 112 | tst_resm(TFAIL, "fork() failed"); |
| 113 | continue; |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 114 | |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 115 | case 0: |
| 116 | /* Child */ |
| 117 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 118 | /* Switch to nobody user */ |
| 119 | if ((ltpuser = getpwnam(nobody_uid)) == NULL) { |
Garrett Cooper | 5374050 | 2010-12-16 00:04:01 -0800 | [diff] [blame] | 120 | tst_brkm(TBROK, NULL, "\"nobody\" user" |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 121 | "not present"); |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 122 | } |
| 123 | if (seteuid(ltpuser->pw_uid) == -1) { |
| 124 | tst_resm(TWARN, "seteuid failed to " |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 125 | "to set the effective uid to %d", |
| 126 | ltpuser->pw_uid); |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 127 | exit(1); |
| 128 | } |
| 129 | |
| 130 | /* |
| 131 | * Call sched_setparam(2) with pid = getppid() |
| 132 | */ |
| 133 | TEST(sched_setparam(getppid(), ¶m)); |
| 134 | |
| 135 | if ((TEST_RETURN == -1) && (TEST_ERRNO == EPERM)) { |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 136 | exit(0); |
| 137 | } |
| 138 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 139 | tst_resm(TWARN | TTERRNO, |
| 140 | "Test failed, sched_setparam()" |
| 141 | " returned : %ld", TEST_RETURN); |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 142 | exit(1); |
| 143 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 144 | default: |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 145 | /* Parent */ |
| 146 | if ((waitpid(child_pid, &status, 0)) < 0) { |
| 147 | tst_resm(TFAIL, "wait() failed"); |
| 148 | continue; |
| 149 | } |
| 150 | if ((WIFEXITED(status)) && (WEXITSTATUS(status) == 0)) { |
| 151 | tst_resm(TPASS, "Test passed, Got EPERM"); |
| 152 | } else { |
| 153 | tst_resm(TFAIL, "Test Failed"); |
| 154 | } |
| 155 | } |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 156 | } |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 157 | |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 158 | cleanup(); |
Garrett Cooper | e57b3f7 | 2010-12-19 08:46:29 -0800 | [diff] [blame] | 159 | tst_exit(); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 160 | } |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 161 | |
| 162 | /* setup() - performs all ONE TIME setup for this test */ |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 163 | void setup(void) |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 164 | { |
| 165 | |
Garrett Cooper | e57b3f7 | 2010-12-19 08:46:29 -0800 | [diff] [blame] | 166 | tst_require_root(NULL); |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 167 | |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 168 | tst_sig(FORK, DEF_HANDLER, cleanup); |
| 169 | |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 170 | TEST_PAUSE; |
| 171 | |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 172 | } |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 173 | |
| 174 | /* |
| 175 | *cleanup() - performs all ONE TIME cleanup for this test at |
| 176 | * completion or premature exit. |
| 177 | */ |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 178 | void cleanup(void) |
vapier | d13d74b | 2006-02-11 07:24:00 +0000 | [diff] [blame] | 179 | { |
Chris Dearman | ec6edca | 2012-10-17 19:54:01 -0700 | [diff] [blame] | 180 | } |