test/stress/stress2/misc/syscall2.sh

   1 #!/bin/sh
   2
   3 #
   4 # Copyright (c) 2009 Peter Holm
   5 # All rights reserved.
   6 #
   7 # Redistribution and use in source and binary forms, with or without
   8 # modification, are permitted provided that the following conditions
   9 # are met:
  10 # 1. Redistributions of source code must retain the above copyright
  11 #    notice, this list of conditions and the following disclaimer.
  12 # 2. Redistributions in binary form must reproduce the above copyright
  13 #    notice, this list of conditions and the following disclaimer in the
  14 #    documentation and/or other materials provided with the distribution.
  15 #
  16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26 # SUCH DAMAGE.
  27 #
  28 # $FreeBSD$
  29 #
  30
  31 # Test calls with random arguments, in reverse order
  32 # Variation of the syscall test program.
  33
  34 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
  35
  36 . ../default.cfg
  37
  38 odir=`pwd`
  39 cd /tmp
  40 sed '1,/^EOF/d' < $odir/$0 > syscall2.c
  41 cc -o syscall2 -Wall -I $odir/../include -L $odir/../lib syscall2.c -lstress -lutil
  42 rm -f syscall2.c
  43
  44 #kldstat -v | grep -q aio      || kldload aio
  45 #kldstat -v | grep -q mqueuefs || kldload mqueuefs
  46
  47 syscall=`grep SYS_MAXSYSCALL /usr/include/sys/syscall.h | awk '{print $NF}'`
  48
  49 n=$syscall
  50 [ $# -eq 1 ] && n=$1
  51
  52 rm -f /tmp/syscall2.log
  53 while [ $n -gt 0 ]; do
  54         echo "`date '+%T'` syscall $n" | tee /dev/tty >> /tmp/syscall2.log
  55         for i in `jot 5`; do
  56                 su ${testuser} -c "sh -c \"/tmp/syscall2 -t 30s -i 100 -h -l 100 -k $n\""
  57         done
  58         chflags -R 0 $RUNDIR
  59         rm -rf $RUNDIR
  60         n=$((n - 1))
  61 done
  62 rm -f /tmp/syscall2
  63 exit
  64 EOF
  65
  66 /* Call random system calls with random arguments */
  67
  68 #include <stdio.h>
  69 #include <stdlib.h>
  70 #include <unistd.h>
  71 #include <fcntl.h>
  72 #include <sys/stat.h>
  73 #include <sys/syscall.h>
  74 #include <sys/resource.h>
  75 #include <err.h>
  76
  77 #include "stress.h"
  78
  79 static char path[128];
  80 static int num;
  81 static int starting_dir = 0;
  82 uint32_t rb[7][10];
  83
  84 static int ignore[] = {
  85         SYS_syscall,
  86         SYS_exit,
  87         SYS_fork,
  88         11,                     /* 11 is obsolete execv */
  89         SYS_unmount,
  90         SYS_reboot,
  91         SYS_vfork,
  92         109,                    /* 109 is old sigblock */
  93         111,                    /* 111 is old sigsuspend */
  94         SYS_shutdown,
  95         SYS___syscall,
  96         SYS_rfork,
  97         SYS_sigsuspend,
  98         SYS_mac_syscall,
  99         SYS_sigtimedwait,
 100         SYS_sigwaitinfo,
 101 };
 102
 103 int
 104 setup(int nb)
 105 {
 106         int i;
 107         struct rlimit rl;
 108
 109         umask(0);
 110         sprintf(path,"%s.%05d", getprogname(), getpid());
 111         (void)mkdir(path, 0770);
 112         if (chdir(path) == -1)
 113                 err(1, "chdir(%s), %s:%d", path, __FILE__, __LINE__);
 114         if ((starting_dir = open(".", 0)) < 0)
 115                 err(1, ".");
 116
 117         if (op->argc == 1) {
 118                 num = atoi(op->argv[0]);
 119                 for (i = 0; i < sizeof(ignore) / sizeof(ignore[0]); i++)
 120                         if (num == ignore[i]) {
 121                                 printf("syscall %d is marked a no test!\n", num);
 122                                 exit(1);
 123                         }
 124         } else {
 125                 num = 0;
 126                 while (num == 0) {
 127                         num = random_int(0, SYS_MAXSYSCALL);
 128                         for (i = 0; i < sizeof(ignore) / sizeof(ignore[0]); i++)
 129                                 if (num == ignore[i]) {
 130                                         num = 0;
 131                                         break;
 132                                 }
 133                 }
 134         }
 135         if (op->verbose > 1)
 136                 printf("Testing syscall #%d, pid %d\n", num, getpid());
 137
 138         /* Multiple parallel core dump may panic the kernel with:
 139            panic: kmem_malloc(184320): kmem_map too small: 84426752 total allocated
 140          */
 141         rl.rlim_max = rl.rlim_cur = 0;
 142         if (setrlimit(RLIMIT_CORE, &rl) == -1)
 143                 warn("setrlimit");
 144
 145         setproctitle("#%d", num);
 146
 147         return (0);
 148 }
 149
 150 void
 151 cleanup(void)
 152 {
 153         if (starting_dir != 0) {
 154                 if (fchdir(starting_dir) == -1)
 155                         err(1, "fchdir()");
 156                 (void)system("find . -type d -exec chmod 777 {} \\;");
 157                 (void)system("find . -type f -exec chmod 666 {} \\;");
 158                 (void)system("find . -delete");
 159
 160                 if (chdir("..") == -1)
 161                         err(1, "chdir(..)");
 162                 if (rmdir(path) == -1)
 163                         err(1, "rmdir(%s), %s:%d", path, __FILE__, __LINE__);
 164         }
 165         starting_dir = 0;
 166 }
 167
 168 void
 169 rainit(void)
 170 {
 171         int i, j;
 172
 173         for (i = 0; i < 7; i++) {
 174                 for (j = 0; j < 10; j++) {
 175                         if (arc4random() % 100 > 20)
 176                                 rb[i][j] = arc4random();
 177                         else
 178                                 rb[i][j] = (uint32_t) &rb[i][j];
 179                 }
 180         }
 181 }
 182
 183 uint32_t
 184 ra(int i)
 185 {
 186         uint32_t r;
 187
 188         r = arc4random();
 189         if ((r & 1) == 0)
 190                 r = arc4random();
 191         else
 192                 r = (uint32_t) &rb[i][0];
 193
 194         return (r);
 195 }
 196
 197 int
 198 test(void)
 199 {
 200         int i;
 201         unsigned int arg1, arg2, arg3, arg4, arg5, arg6, arg7;
 202
 203         for (i = 0; i < 128; i++) {
 204                 rainit();
 205                 arg1 = ra(0);
 206                 arg2 = ra(1);
 207                 arg3 = ra(2);
 208                 arg4 = ra(3);
 209                 arg5 = ra(4);
 210                 arg6 = ra(5);
 211                 arg7 = ra(6);
 212
 213                 if (op->verbose > 3)
 214                         printf("%2d : syscall(%3d, %x, %x, %x, %x, %x, %x, %x)\n",
 215                                 i, num, arg1, arg2, arg3, arg4, arg5, arg6, arg7);
 216                 syscall(num, arg1, arg2, arg3, arg4, arg5, arg6, arg7);
 217         }
 218
 219         return (0);
 220 }