robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright (c) International Business Machines Corp., 2002 |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 13 | * the GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
Wanlong Gao | 4548c6c | 2012-10-19 18:03:36 +0800 | [diff] [blame] | 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 18 | */ |
| 19 | |
| 20 | /* 06/30/2001 Port to Linux nsharoff@us.ibm.com */ |
| 21 | /* 10/30/2002 Port to LTP dbarrera@us.ibm.com */ |
| 22 | |
| 23 | /* |
| 24 | * NAME |
| 25 | * mkdir.c - Stress test of mkdir call. |
| 26 | * |
| 27 | * CALLS |
| 28 | * mkdir, rmdir |
| 29 | * |
| 30 | * ALGORITHM |
| 31 | * Create multiple processes which create subdirectories in the |
| 32 | * same directory multiple times. On exit of all child processes, |
| 33 | * make sure all subdirectories can be removed. |
| 34 | * |
| 35 | * USAGE: mkdir09 -c # -t # -d # |
| 36 | * -c = number of children groups |
| 37 | * -t = number of seconds to run test |
| 38 | * -d = number of directories created in test directory |
| 39 | * |
| 40 | * RESTRICTIONS |
| 41 | * |
| 42 | */ |
| 43 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 44 | #include <stdio.h> /* needed by testhead.h */ |
Steven Jackson | 249f405 | 2016-12-13 16:16:00 +0000 | [diff] [blame^] | 45 | #include <sys/wait.h> /* needed by testhead.h */ |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 46 | #include <sys/types.h> |
| 47 | #include <sys/param.h> |
| 48 | #include <sys/stat.h> |
| 49 | #include <sys/mman.h> |
| 50 | #include <errno.h> |
| 51 | #include <signal.h> |
| 52 | #include <unistd.h> |
| 53 | #include <setjmp.h> |
| 54 | #include "test.h" |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 55 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 56 | #include <stdlib.h> |
Garrett Cooper | bacc849 | 2011-01-14 00:36:17 -0800 | [diff] [blame] | 57 | #include <stdlib.h> |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 58 | #include <string.h> |
| 59 | |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 60 | #define NCHILD 3 |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 61 | |
| 62 | #define MODE_RWX 07770 |
| 63 | #define DIR_NAME "./X.%d" |
| 64 | |
| 65 | /* used by getopt */ |
| 66 | extern char *optarg; |
| 67 | extern int optind, opterr; |
| 68 | char *goodopts = "c:t:d:"; |
| 69 | int errflg; |
| 70 | |
Cyril Hrubis | fdce7d5 | 2013-04-04 18:35:48 +0200 | [diff] [blame] | 71 | char *TCID = "mkdir09"; |
| 72 | int TST_TOTAL = 1; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 73 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 74 | int child_groups, test_time, nfiles; |
| 75 | char testdir[MAXPATHLEN]; |
| 76 | int parent_pid, sigchld, sigterm, jump; |
Mike Frysinger | e61ddba | 2014-04-09 23:24:32 -0400 | [diff] [blame] | 77 | void term(int sig); |
| 78 | void chld(int sig); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 79 | int *pidlist, child_count; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 80 | jmp_buf env_buf; |
| 81 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 82 | int getchild(int group, int child, int children); |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 83 | int dochild1(void); |
| 84 | int dochild2(void); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 85 | int dochild3(int group); |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 86 | int massmurder(void); |
| 87 | int runtest(void); |
| 88 | void setup(void); |
| 89 | void cleanup(void); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 90 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 91 | #ifdef UCLINUX |
| 92 | static char *argv0; |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 93 | void dochild1_uclinux(void); |
| 94 | void dochild2_uclinux(void); |
| 95 | void dochild3_uclinux(void); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 96 | static int group_uclinux; |
| 97 | #endif |
| 98 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 99 | /*--------------------------------------------------------------*/ |
| 100 | /*--------------------------------------------------------------*/ |
| 101 | /*--------------------------------------------------------------*/ |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 102 | int main(int argc, char *argv[]) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 103 | { |
robbiew | e0cf2e2 | 2002-12-11 20:29:15 +0000 | [diff] [blame] | 104 | int c; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 105 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 106 | #ifdef UCLINUX |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 107 | |
Cyril Hrubis | d6d11d0 | 2015-03-09 17:35:43 +0100 | [diff] [blame] | 108 | tst_parse_opts(argc, argv, NULL, NULL); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 109 | |
| 110 | argv0 = argv[0]; |
| 111 | maybe_run_child(&dochild1_uclinux, "nd", 1, &nfiles); |
| 112 | maybe_run_child(&dochild2_uclinux, "n", 2); |
| 113 | maybe_run_child(&dochild3_uclinux, "nd", 3, &group_uclinux); |
| 114 | #endif |
| 115 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 116 | setup(); |
| 117 | |
| 118 | /* Set up to catch SIGTERM signal */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 119 | if (signal(SIGTERM, term) == SIG_ERR) { |
| 120 | tst_brkm(TFAIL, cleanup, |
| 121 | "Error setting up SIGTERM signal, ERRNO = %d", errno); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 122 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 123 | } |
| 124 | |
Khem Raj | ad33a3d | 2016-07-21 21:26:51 -0700 | [diff] [blame] | 125 | /* Set up to catch SIGCHLD signal */ |
| 126 | if (signal(SIGCHLD, chld) == SIG_ERR) { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 127 | tst_brkm(TFAIL, cleanup, |
Khem Raj | ad33a3d | 2016-07-21 21:26:51 -0700 | [diff] [blame] | 128 | "Error setting up SIGCHLD signal, ERRNO = %d", errno); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 129 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | /* Default argument settings. */ |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 133 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 134 | child_groups = 2; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 135 | test_time = 5; /* 0 = run forever or till signal */ |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 136 | nfiles = 5; |
| 137 | |
| 138 | /* Get command line options */ |
| 139 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 140 | while ((c = getopt(argc, argv, goodopts)) != EOF) { |
| 141 | switch (c) { |
| 142 | case 'c': |
| 143 | child_groups = atoi(optarg); |
| 144 | break; |
| 145 | case 't': |
| 146 | test_time = atoi(optarg); |
| 147 | break; |
| 148 | case 'd': |
| 149 | nfiles = atoi(optarg); |
| 150 | break; |
| 151 | case '?': |
| 152 | errflg++; |
| 153 | break; |
| 154 | default: |
| 155 | break; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 156 | } |
| 157 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 158 | if (errflg) { |
| 159 | tst_resm(TINFO, |
| 160 | "USAGE : mkdir09 -c #child_groups -t#test_time -d#directories"); |
vapier | cff4af0 | 2006-02-11 04:46:30 +0000 | [diff] [blame] | 161 | tst_resm(TINFO, "Bad argument count."); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 162 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 163 | } |
| 164 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 165 | runtest(); |
| 166 | cleanup(); |
Garrett Cooper | 1e6f5a6 | 2010-12-19 09:58:10 -0800 | [diff] [blame] | 167 | tst_exit(); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 168 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 169 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 170 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 171 | /*--------------------------------------------------------------*/ |
| 172 | |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 173 | int runtest(void) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 174 | { |
| 175 | int i, j; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 176 | int count, child, status; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 177 | char tmpdir[MAXPATHLEN]; |
| 178 | |
| 179 | /* Create permanent directories with holes in directory structure */ |
| 180 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 181 | for (j = 0; j < nfiles; j++) { |
| 182 | sprintf(tmpdir, DIR_NAME, j); |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 183 | TEST(mkdir(tmpdir, MODE_RWX)); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 184 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 185 | if (TEST_RETURN < 0) { |
| 186 | tst_brkm(TFAIL, cleanup, |
| 187 | "Error creating permanent directories, ERRNO = %d", |
| 188 | TEST_ERRNO); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 189 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 190 | if ((j % NCHILD) != 0) { |
| 191 | if (rmdir(tmpdir) < 0) { |
| 192 | tst_brkm(TFAIL, cleanup, |
| 193 | "Error removing directory, ERRNO = %d", |
| 194 | errno); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 195 | } |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | parent_pid = getpid(); |
| 200 | |
| 201 | /* allocate space for list of child pid's */ |
| 202 | |
Cyril Hrubis | d218f34 | 2014-09-23 13:14:56 +0200 | [diff] [blame] | 203 | if ((pidlist = malloc((child_groups * NCHILD) * sizeof(int))) == |
Cyril Hrubis | 4e2bab8 | 2014-09-24 16:34:35 +0200 | [diff] [blame] | 204 | NULL) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 205 | tst_brkm(TWARN, NULL, |
| 206 | "\tMalloc failed (may be OK if under stress)"); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | child_count = 0; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 210 | for (j = 0; j < child_groups; j++) { |
| 211 | for (i = 0; i < NCHILD; i++) { |
| 212 | getchild(j, i, child_count); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 213 | child_count++; |
| 214 | } |
| 215 | } |
| 216 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 217 | /* If signal already received, skip to cleanup */ |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 218 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 219 | if (!sigchld && !sigterm) { |
| 220 | if (test_time) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 221 | /* To get out of sleep if signal caught */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 222 | if (!setjmp(env_buf)) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 223 | jump++; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 224 | sleep(test_time); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 225 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 226 | } else { |
| 227 | pause(); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 228 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 229 | } |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 230 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 231 | /* Reset signals since we are about to clean-up and to avoid |
| 232 | * problem with wait call * $ |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 233 | * */ |
| 234 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 235 | if (signal(SIGTERM, SIG_IGN) == SIG_ERR) { |
| 236 | tst_brkm(TFAIL, cleanup, |
| 237 | "Error resetting SIGTERM signal, ERRNO = %d", errno); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 238 | } |
Khem Raj | ad33a3d | 2016-07-21 21:26:51 -0700 | [diff] [blame] | 239 | if (signal(SIGCHLD, SIG_DFL) == SIG_ERR) { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 240 | tst_brkm(TFAIL, cleanup, |
Khem Raj | ad33a3d | 2016-07-21 21:26:51 -0700 | [diff] [blame] | 241 | "Error resetting SIGCHLD signal, ERRNO = %d", errno); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 242 | } |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 243 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 244 | if (test_time) { |
| 245 | sleep(test_time); |
| 246 | } |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 247 | |
| 248 | /* Clean up children */ |
| 249 | massmurder(); |
| 250 | /* |
| 251 | * Watch children finish and show returns. |
| 252 | */ |
| 253 | |
| 254 | count = 0; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 255 | while (1) { |
| 256 | if ((child = wait(&status)) > 0) { |
| 257 | if (status != 0) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 258 | tst_brkm(TWARN, |
| 259 | NULL, |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 260 | "\tChild{%d} exited status = %0x", |
| 261 | child, status); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 262 | } |
| 263 | count++; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 264 | } else { |
| 265 | if (errno != EINTR) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 266 | break; |
| 267 | } |
vapier | cff4af0 | 2006-02-11 04:46:30 +0000 | [diff] [blame] | 268 | tst_resm(TINFO, "\tSignal detected during wait"); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 269 | } |
| 270 | } |
| 271 | |
| 272 | /* |
| 273 | * Make sure correct number of children exited. |
| 274 | */ |
| 275 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 276 | if (count != child_count) { |
vapier | cff4af0 | 2006-02-11 04:46:30 +0000 | [diff] [blame] | 277 | tst_resm(TWARN, "\tWrong number of children waited on!"); |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 278 | tst_brkm(TWARN, NULL, "\tSaw %d, expected %d", count, |
| 279 | NCHILD); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 280 | } |
| 281 | |
| 282 | /* Check for core file in test directory. */ |
| 283 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 284 | if (access("core", 0) == 0) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 285 | tst_brkm(TWARN, NULL, "\tCore file found in test directory."); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | /* Remove expected files */ |
| 289 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 290 | for (j = 0; j < nfiles; j += NCHILD) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 291 | sprintf(tmpdir, DIR_NAME, j); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 292 | if (rmdir(tmpdir) < 0) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 293 | tst_brkm(TWARN, |
| 294 | NULL, |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 295 | "\tError removing expected directory, ERRNO = %d", |
| 296 | errno); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 297 | } |
| 298 | } |
| 299 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 300 | tst_resm(TPASS, "PASS"); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 301 | |
subrata_modak | 43337a3 | 2009-02-26 11:43:51 +0000 | [diff] [blame] | 302 | return 0; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 303 | } |
| 304 | |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 305 | int getchild(int group, int child, int children) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 306 | { |
| 307 | int pid; |
| 308 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 309 | pid = FORK_OR_VFORK(); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 310 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 311 | if (pid < 0) { |
| 312 | |
| 313 | massmurder(); /* kill the kids */ |
| 314 | tst_brkm(TBROK, cleanup, |
| 315 | "\tFork failed (may be OK if under stress)"); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 316 | } else if (pid == 0) { /* child does this */ |
| 317 | switch (children % NCHILD) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 318 | case 0: |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 319 | #ifdef UCLINUX |
| 320 | if (self_exec(argv0, "nd", 1, nfiles) < 0) { |
| 321 | massmurder(); |
| 322 | tst_brkm(TBROK, cleanup, "\tself_exec failed"); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 323 | } |
| 324 | #else |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 325 | dochild1(); /* create existing directories */ |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 326 | #endif |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 327 | break; /* so lint won't complain */ |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 328 | case 1: |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 329 | #ifdef UCLINUX |
| 330 | if (self_exec(argv0, "n", 2) < 0) { |
| 331 | massmurder(); |
| 332 | tst_brkm(TBROK, cleanup, "\tself_exec failed"); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 333 | } |
| 334 | #else |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 335 | dochild2(); /* remove nonexistant directories */ |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 336 | #endif |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 337 | break; |
| 338 | case 2: |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 339 | #ifdef UCLINUX |
| 340 | if (self_exec(argv0, "nd", 3, group) < 0) { |
| 341 | massmurder(); |
| 342 | tst_brkm(TBROK, cleanup, "\tself_exec failed"); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 343 | } |
| 344 | #else |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 345 | dochild3(group); /* create/delete directories */ |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 346 | #endif |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 347 | break; |
| 348 | default: |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 349 | tst_brkm(TFAIL, cleanup, |
| 350 | "Test not inplemented for child %d", child); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 351 | exit(1); |
| 352 | break; |
| 353 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 354 | exit(1); /* If child gets here, something wrong */ |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 355 | } |
| 356 | pidlist[children] = pid; |
subrata_modak | 43337a3 | 2009-02-26 11:43:51 +0000 | [diff] [blame] | 357 | return 0; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 358 | } |
| 359 | |
Mike Frysinger | e61ddba | 2014-04-09 23:24:32 -0400 | [diff] [blame] | 360 | void term(int sig) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 361 | { |
| 362 | /* Routine to handle SIGTERM signal. */ |
| 363 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 364 | if (parent_pid == getpid()) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 365 | tst_brkm(TWARN, NULL, "\tsignal SIGTERM received by parent."); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 366 | } |
| 367 | sigterm++; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 368 | if (jump) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 369 | longjmp(env_buf, 1); |
| 370 | } |
| 371 | } |
| 372 | |
Mike Frysinger | e61ddba | 2014-04-09 23:24:32 -0400 | [diff] [blame] | 373 | void chld(int sig) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 374 | { |
Khem Raj | ad33a3d | 2016-07-21 21:26:51 -0700 | [diff] [blame] | 375 | /* Routine to handle SIGCHLD signal. */ |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 376 | |
| 377 | sigchld++; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 378 | if (jump) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 379 | longjmp(env_buf, 1); |
| 380 | } |
| 381 | } |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 382 | |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 383 | int dochild1(void) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 384 | { |
| 385 | /* Child routine which attempts to create directories in the test |
| 386 | * directory that already exist. Runs until a SIGTERM signal is |
| 387 | * received. Will exit with an error if it is able to create the |
| 388 | * directory or if the expected error is not received. |
| 389 | */ |
| 390 | |
| 391 | int j; |
| 392 | char tmpdir[MAXPATHLEN]; |
| 393 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 394 | while (!sigterm) { |
| 395 | for (j = 0; j < nfiles; j += NCHILD) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 396 | sprintf(tmpdir, DIR_NAME, j); |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 397 | TEST(mkdir(tmpdir, MODE_RWX)); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 398 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 399 | if (TEST_RETURN < 0) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 400 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 401 | if (TEST_ERRNO != EEXIST) { |
| 402 | tst_brkm(TFAIL, cleanup, |
| 403 | "MKDIR %s, errno = %d; Wrong error detected.", |
| 404 | tmpdir, TEST_ERRNO); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 405 | exit(1); |
| 406 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 407 | } else { |
| 408 | tst_brkm(TFAIL, cleanup, |
| 409 | "MKDIR %s succeded when it shoud have failed.", |
| 410 | tmpdir); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 411 | exit(1); |
| 412 | } |
| 413 | } |
| 414 | } |
| 415 | exit(0); |
| 416 | } |
| 417 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 418 | #ifdef UCLINUX |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 419 | void dochild1_uclinux(void) |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 420 | { |
| 421 | /* Set up to catch SIGTERM signal */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 422 | if (signal(SIGTERM, term) == SIG_ERR) { |
| 423 | tst_brkm(TFAIL, cleanup, |
| 424 | "Error setting up SIGTERM signal, ERRNO = %d", errno); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 425 | } |
| 426 | |
| 427 | dochild1(); |
| 428 | } |
| 429 | #endif |
| 430 | |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 431 | int dochild2(void) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 432 | { |
| 433 | /* Child routine which attempts to remove directories from the |
| 434 | * test directory which do not exist. Runs until a SIGTERM |
| 435 | * signal is received. Exits with an error if the proper |
| 436 | * error is not detected or if the remove operation is |
| 437 | * successful. |
| 438 | */ |
| 439 | |
| 440 | int j; |
| 441 | char tmpdir[MAXPATHLEN]; |
| 442 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 443 | while (!sigterm) { |
| 444 | for (j = 1; j < nfiles; j += NCHILD) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 445 | sprintf(tmpdir, DIR_NAME, j); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 446 | if (rmdir(tmpdir) < 0) { |
| 447 | if (errno != ENOENT) { |
| 448 | tst_brkm(TFAIL, cleanup, |
| 449 | "RMDIR %s, errno = %d; Wrong error detected.", |
| 450 | tmpdir, errno); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 451 | exit(1); |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 452 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 453 | } else { |
| 454 | tst_brkm(TFAIL, cleanup, |
| 455 | "RMDIR %s succeded when it should have failed.", |
| 456 | tmpdir); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 457 | exit(1); |
| 458 | } |
| 459 | } |
| 460 | } |
| 461 | exit(0); |
subrata_modak | 43337a3 | 2009-02-26 11:43:51 +0000 | [diff] [blame] | 462 | return 0; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 463 | } |
| 464 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 465 | #ifdef UCLINUX |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 466 | void dochild2_uclinux(void) |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 467 | { |
| 468 | /* Set up to catch SIGTERM signal */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 469 | if (signal(SIGTERM, term) == SIG_ERR) { |
| 470 | tst_brkm(TFAIL, cleanup, |
| 471 | "Error setting up SIGTERM signal, ERRNO = %d", errno); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | dochild2(); |
| 475 | } |
| 476 | #endif |
| 477 | |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 478 | int dochild3(int group) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 479 | { |
| 480 | /* Child routine which creates and deletes directories in the |
| 481 | * test directory. Runs until a SIGTERM signal is received, then |
| 482 | * cleans up and exits. Detects error if the expected condition |
| 483 | * is not encountered. |
| 484 | */ |
| 485 | |
| 486 | int j; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 487 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 488 | char tmpdir[MAXPATHLEN]; |
| 489 | char tmp[MAXPATHLEN]; |
| 490 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 491 | while (!sigterm) { |
| 492 | for (j = 2; j < nfiles; j += NCHILD) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 493 | strcpy(tmp, DIR_NAME); |
| 494 | strcat(tmp, ".%d"); |
| 495 | sprintf(tmpdir, tmp, j, group); |
| 496 | |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 497 | TEST(mkdir(tmpdir, MODE_RWX)); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 498 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 499 | if (TEST_RETURN < 0) { |
| 500 | tst_brkm(TFAIL, cleanup, |
| 501 | "MKDIR %s, errno = %d; Wrong error detected.", |
| 502 | tmpdir, TEST_ERRNO); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 503 | exit(1); |
| 504 | } |
| 505 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 506 | for (j = 2; j < nfiles; j += NCHILD) { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 507 | strcpy(tmp, DIR_NAME); |
| 508 | strcat(tmp, ".%d"); |
| 509 | sprintf(tmpdir, tmp, j, group); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 510 | if (rmdir(tmpdir) < 0) { |
| 511 | tst_brkm(TFAIL, cleanup, |
| 512 | "RMDIR %s, errno = %d; Wrong error detected.", |
| 513 | tmpdir, errno); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 514 | exit(1); |
| 515 | } |
| 516 | } |
| 517 | } |
| 518 | exit(0); |
| 519 | } |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 520 | |
| 521 | #ifdef UCLINUX |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 522 | void dochild3_uclinux(void) |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 523 | { |
| 524 | /* Set up to catch SIGTERM signal */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 525 | if (signal(SIGTERM, term) == SIG_ERR) { |
| 526 | tst_brkm(TFAIL, cleanup, |
| 527 | "Error setting up SIGTERM signal, ERRNO = %d", errno); |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 528 | } |
| 529 | |
| 530 | dochild3(group_uclinux); |
| 531 | } |
| 532 | #endif |
| 533 | |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 534 | int massmurder(void) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 535 | { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 536 | register int j; |
| 537 | for (j = 0; j < child_count; j++) { |
| 538 | if (pidlist[j] > 0) { |
| 539 | if (kill(pidlist[j], SIGTERM) < 0) { |
| 540 | tst_brkm(TFAIL, cleanup, |
| 541 | "Error killing child %d, ERRNO = %d", |
| 542 | j, errno); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 543 | } |
| 544 | } |
| 545 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 546 | return 0; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 547 | } |
| 548 | |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 549 | /*************************************************************** |
| 550 | * * setup() - performs all ONE TIME setup for this test. |
| 551 | * ***************************************************************/ |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 552 | void setup(void) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 553 | { |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 554 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 555 | tst_sig(NOFORK, DEF_HANDLER, cleanup); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 556 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 557 | TEST_PAUSE; |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 558 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 559 | /* Create a temporary directory and make it current. */ |
| 560 | tst_tmpdir(); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 561 | |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 562 | } |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 563 | |
| 564 | /*************************************************************** |
| 565 | * * cleanup() - performs all ONE TIME cleanup for this test at |
| 566 | * * completion or premature exit. |
| 567 | * ***************************************************************/ |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 568 | void cleanup(void) |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 569 | { |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 570 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 571 | /* |
| 572 | * * Remove the temporary directory. |
| 573 | * */ |
| 574 | tst_rmdir(); |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 575 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 576 | /* |
| 577 | * * Exit with return code appropriate for results. |
| 578 | * */ |
robbiew | bd75650 | 2002-12-04 23:16:31 +0000 | [diff] [blame] | 579 | |
Garrett Cooper | bacc849 | 2011-01-14 00:36:17 -0800 | [diff] [blame] | 580 | } |