robbiew | d34d581 | 2005-07-11 22:28:09 +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. |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 15 | * |
| 16 | */ |
| 17 | /************************************************************************** |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 18 | * |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 19 | * TEST IDENTIFIER : mlockall02 |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 20 | * |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 21 | * EXECUTED BY : root / superuser |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 22 | * |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 23 | * TEST TITLE : Test for checking basic error conditions for |
| 24 | * mlockall(2) |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 25 | * |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 26 | * TEST CASE TOTAL : 3 |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 27 | * |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 28 | * AUTHOR : Nirmala Devi Dhanasekar <nirmala.devi@wipro.com> |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 29 | * |
robbiew | d34d581 | 2005-07-11 22:28:09 +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 | * Check for basic errors returned by mount(2) system call. |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 36 | *$ |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 37 | * Verify that mount(2) returns -1 and sets errno to |
| 38 | * |
| 39 | * 1) ENOMEM - If process exceed maximum number of locked pages. |
| 40 | * 2) EPERM - If not super user |
| 41 | * 3) EINVAL - Unknown flags were specified. |
| 42 | * |
| 43 | * Setup: |
| 44 | * Setup signal handling. |
| 45 | * Pause for SIGUSR1 if option specified. |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 46 | * |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 47 | * Test: |
| 48 | * Loop if the proper options are given. |
| 49 | * Do necessary setup for each test. |
| 50 | * Execute system call |
| 51 | * Check return code, if system call failed and errno == expected errno |
| 52 | * Issue sys call passed with expected return value and errno. |
| 53 | * Otherwise, |
| 54 | * Issue sys call failed to produce expected error. |
| 55 | * Do cleanup for each test. |
| 56 | * |
| 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 | * |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 60 | * USAGE: <for command-line> |
| 61 | * mlockall02 [-c n] [-e] [-i n] [-I x] [-p x] [-t] |
| 62 | * where, |
| 63 | * -c n : Run n copies concurrently |
| 64 | * -e : Turn on errno logging. |
| 65 | * -h : Show this help screen |
| 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 | * RESTRICTIONS |
| 73 | * Test must run as root. |
| 74 | *****************************************************************************/ |
| 75 | #include <errno.h> |
| 76 | #include <unistd.h> |
| 77 | #include <pwd.h> |
| 78 | #include <sys/mman.h> |
| 79 | #include "test.h" |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 80 | #include <sys/resource.h> |
| 81 | |
| 82 | void setup(); |
| 83 | int setup_test(int); |
| 84 | void cleanup_test(int); |
| 85 | void cleanup(); |
| 86 | |
Cyril Hrubis | fdce7d5 | 2013-04-04 18:35:48 +0200 | [diff] [blame] | 87 | char *TCID = "mlockall02"; |
| 88 | int TST_TOTAL = 3; |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 89 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 90 | struct test_case_t { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 91 | int flag; /* flag value */ |
| 92 | int error; /* error description */ |
| 93 | char *edesc; /* Expected error no */ |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 94 | } TC[] = { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 95 | { |
| 96 | MCL_CURRENT, ENOMEM, "Process exceeds max locked pages"}, { |
| 97 | MCL_CURRENT, EPERM, "Not a superuser"}, { |
| 98 | 0, EINVAL, "Unknown flag"} |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 99 | }; |
| 100 | |
| 101 | #if !defined(UCLINUX) |
| 102 | |
| 103 | int main(int ac, char **av) |
| 104 | { |
Cyril Hrubis | 89af32a | 2012-10-24 16:39:11 +0200 | [diff] [blame] | 105 | int lc, i; |
Cyril Hrubis | 0b9589f | 2014-05-27 17:40:33 +0200 | [diff] [blame] | 106 | const char *msg; |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 107 | |
Garrett Cooper | 45e285d | 2010-11-22 12:19:25 -0800 | [diff] [blame] | 108 | if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 109 | tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 110 | } |
| 111 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 112 | setup(); |
| 113 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 114 | /* check looping state */ |
| 115 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
| 116 | |
Caspar Zhang | d59a659 | 2013-03-07 14:59:12 +0800 | [diff] [blame] | 117 | tst_count = 0; |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 118 | |
| 119 | for (i = 0; i < TST_TOTAL; i++) { |
| 120 | |
| 121 | if (setup_test(i)) { |
| 122 | tst_resm(TFAIL, "mlockall() Failed while setup " |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 123 | "for checking error %s", TC[i].edesc); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 124 | continue; |
| 125 | } |
| 126 | |
| 127 | TEST(mlockall(TC[i].flag)); |
| 128 | |
| 129 | /* check return code */ |
| 130 | if (TEST_RETURN == -1) { |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 131 | if (TEST_ERRNO != TC[i].error) |
| 132 | tst_brkm(TFAIL, cleanup, |
| 133 | "mlock() Failed with wrong " |
| 134 | "errno, expected errno=%s, " |
| 135 | "got errno=%d : %s", |
| 136 | TC[i].edesc, TEST_ERRNO, |
| 137 | strerror(TEST_ERRNO)); |
| 138 | else |
| 139 | tst_resm(TPASS, |
| 140 | "expected failure - errno " |
| 141 | "= %d : %s", |
| 142 | TEST_ERRNO, |
| 143 | strerror(TEST_ERRNO)); |
| 144 | } else { |
| 145 | if (i <= 1) |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 146 | tst_resm(TCONF, |
| 147 | "mlockall02 did not BEHAVE as expected."); |
| 148 | else |
| 149 | tst_brkm(TFAIL, cleanup, |
| 150 | "mlock() Failed, expected " |
subrata_modak | 923b23f | 2009-11-02 13:57:16 +0000 | [diff] [blame] | 151 | "return value=-1, got %ld", |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 152 | TEST_RETURN); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 153 | } |
| 154 | cleanup_test(i); |
| 155 | } |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 156 | } |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 157 | |
| 158 | /* cleanup and exit */ |
| 159 | cleanup(); |
| 160 | |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 161 | tst_exit(); |
| 162 | } |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 163 | |
| 164 | /* |
| 165 | * setup() - performs all ONE TIME setup for this test. |
| 166 | */ |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 167 | void setup(void) |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 168 | { |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 169 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 170 | tst_sig(FORK, DEF_HANDLER, cleanup); |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 171 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 172 | TEST_PAUSE; |
| 173 | |
| 174 | return; |
| 175 | } |
| 176 | |
| 177 | int setup_test(int i) |
| 178 | { |
| 179 | struct rlimit rl; |
| 180 | char nobody_uid[] = "nobody"; |
| 181 | struct passwd *ltpuser; |
| 182 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 183 | switch (i) { |
| 184 | case 0: |
| 185 | rl.rlim_max = 10; |
| 186 | rl.rlim_cur = 7; |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 187 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 188 | if (setrlimit(RLIMIT_MEMLOCK, &rl) != 0) { |
| 189 | tst_resm(TWARN, "setrlimit failed to set the " |
| 190 | "resource for RLIMIT_MEMLOCK to check " |
| 191 | "for mlockall error %s\n", TC[i].edesc); |
| 192 | return 1; |
| 193 | } |
| 194 | if (tst_kvercmp(2, 6, 9) >= 0) { |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 195 | ltpuser = getpwnam(nobody_uid); |
| 196 | if (seteuid(ltpuser->pw_uid) == -1) { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 197 | tst_brkm(TBROK, cleanup, "seteuid() " |
| 198 | "failed to change euid to %d " |
| 199 | "errno = %d : %s", |
| 200 | ltpuser->pw_uid, TEST_ERRNO, |
| 201 | strerror(TEST_ERRNO)); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 202 | return 1; |
| 203 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 204 | } |
| 205 | return 0; |
| 206 | case 1: |
| 207 | if (tst_kvercmp(2, 6, 9) >= 0) { |
| 208 | rl.rlim_max = 0; |
| 209 | rl.rlim_cur = 0; |
| 210 | if (setrlimit(RLIMIT_MEMLOCK, &rl) != 0) { |
| 211 | tst_resm(TWARN, "setrlimit failed to " |
| 212 | "set the resource for " |
| 213 | "RLIMIT_MEMLOCK to check for " |
| 214 | "mlockall error %s\n", TC[i].edesc); |
| 215 | return 1; |
| 216 | } |
| 217 | } |
| 218 | ltpuser = getpwnam(nobody_uid); |
| 219 | if (seteuid(ltpuser->pw_uid) == -1) { |
| 220 | tst_brkm(TBROK, cleanup, "seteuid() failed to " |
| 221 | "change euid to %d errno = %d : %s", |
| 222 | ltpuser->pw_uid, TEST_ERRNO, |
| 223 | strerror(TEST_ERRNO)); |
| 224 | return 1; |
| 225 | } |
| 226 | return 0; |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 227 | } |
| 228 | return 0; |
| 229 | } |
| 230 | |
| 231 | void cleanup_test(int i) |
| 232 | { |
| 233 | struct rlimit rl; |
| 234 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 235 | switch (i) { |
| 236 | case 0: |
| 237 | if (tst_kvercmp(2, 6, 9) >= 0) |
| 238 | seteuid(0); |
subrata_modak | 334b043 | 2008-01-07 09:17:30 +0000 | [diff] [blame] | 239 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 240 | rl.rlim_max = -1; |
| 241 | rl.rlim_cur = -1; |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 242 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 243 | if (setrlimit(RLIMIT_MEMLOCK, &rl) != 0) { |
| 244 | tst_brkm(TFAIL, cleanup, |
| 245 | "setrlimit failed to reset the " |
| 246 | "resource for RLIMIT_MEMLOCK while " |
| 247 | "checking for mlockall error %s\n", |
| 248 | TC[i].edesc); |
| 249 | } |
| 250 | return; |
| 251 | case 1: |
| 252 | if (seteuid(0) == -1) { |
| 253 | tst_brkm(TBROK, cleanup, "seteuid() failed to " |
| 254 | "change euid to %d errno = %d : %s", |
| 255 | 0, TEST_ERRNO, strerror(TEST_ERRNO)); |
| 256 | } |
| 257 | return; |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 258 | |
| 259 | } |
| 260 | } |
| 261 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 262 | /* |
| 263 | * cleanup() - performs all ONE TIME cleanup for this test at |
| 264 | * completion or premature exit. |
| 265 | */ |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 266 | void cleanup(void) |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 267 | { |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 268 | return; |
| 269 | } |
| 270 | |
| 271 | #else |
| 272 | |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 273 | int main(void) |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 274 | { |
vapier | 81a6307 | 2006-02-27 04:29:21 +0000 | [diff] [blame] | 275 | tst_resm(TINFO, "test is not available on uClinux"); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 276 | tst_exit(); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 277 | } |
| 278 | |
Chris Dearman | ec6edca | 2012-10-17 19:54:01 -0700 | [diff] [blame] | 279 | #endif /* if !defined(UCLINUX) */ |