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#!/bin/sh
#
# Copyright (c) 2017 Dell EMC Isilon
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# msdosfs rename scenario
# "Invalid long filename entry" seen from fsck
. ../default.cfg
[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1
[ -x /sbin/mount_msdosfs ] || exit 0
dir=/tmp
odir=`pwd`
cd $dir
sed '1,/^EOF/d' < $odir/$0 > $dir/msdos8.c
cc -o msdos8 -Wall -Wextra -O0 -g msdos8.c || exit 1
rm -f msdos8.c
cd $odir
log=/tmp/msdos8.sh.log
mount | grep "$mntpoint" | grep -q md$mdstart && umount -f $mntpoint
mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart
mdconfig -a -t swap -s 1g -u $mdstart
bsdlabel -w md$mdstart auto
newfs_msdos /dev/md${mdstart}$part #> /dev/null
mount -t msdosfs /dev/md${mdstart}$part $mntpoint || exit 1
(cd $mntpoint; /tmp/msdos8)
s=$?
while mount | grep "$mntpoint" | grep -q md$mdstart; do
umount $mntpoint || sleep 1
done
fsck -t msdosfs -y /dev/md${mdstart}$part > $log 2>&1
if egrep -q "BAD|INCONSISTENCY|MODIFIED" $log; then
cat $log
s=1
mount -t msdosfs /dev/md${mdstart}$part $mntpoint || exit 1
ls -lR $mntpoint
umount $mntpoint
fi
mdconfig -d -u $mdstart
rm /tmp/msdos8 $log
s=0 # Ignore for now
exit $s
EOF
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
# define PARALLEL 10
static unsigned long size;
static void
test(void)
{
pid_t pid;
int fd, i, j;
char file1[128], file2[128];
pid = getpid();
for (i = 0; i < (int)size; i++) {
sprintf(file1,"p%05d.%05d", pid, i);
if ((fd = open(file1, O_RDONLY|O_CREAT, 0660)) == -1)
err(1, "openat(%s), %s:%d", file1, __FILE__,
__LINE__);
close(fd);
}
for (j = 0; j < 100; j++) {
for (i = 0; i < (int)size; i++) {
sprintf(file1,"p%05d.%05d", pid, i);
sprintf(file2,"p%05d.%05d.togo", pid, i);
if (rename(file1, file2) == -1)
err(1, "rename(%s, %s). %s:%d", file1,
file2, __FILE__, __LINE__);
}
for (i = 0; i < (int)size; i++) {
sprintf(file1,"p%05d.%05d", pid, i);
sprintf(file2,"p%05d.%05d.togo", pid, i);
if (rename(file2, file1) == -1)
err(1, "rename(%s, %s). %s:%d", file2,
file1, __FILE__, __LINE__);
}
}
for (i = 0; i < (int)size; i++) {
sprintf(file1,"p%05d.%05d", pid, i);
if (unlink(file1) == -1)
err(1, "unlink(%s), %s:%d", file1, __FILE__,
__LINE__);
}
_exit(0);
}
int
main(void)
{
pid_t pids[PARALLEL];
time_t start;
int e, i, status;
e = 0;
size = 5;
start = time(NULL);
while ((time(NULL) - start) < 60 && e == 0) {
for (i = 0; i < PARALLEL; i++) {
if ((pids[i] = fork()) == 0)
test();
if (pids[i] == -1)
err(1, "fork()");
}
for (i = 0; i < PARALLEL; i++) {
if (waitpid(pids[i], &status, 0) == -1)
err(1, "waitpid(%d)", pids[i]);
if (WIFSIGNALED(status))
fprintf(stderr, "pid %d exit signal %d\n",
pids[i], WTERMSIG(status));
e += status == 0 ? 0 : 1;
}
}
return (e);
}
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