svn commit: r228094 - projects/stress2/misc
Peter Holm
pho at FreeBSD.org
Mon Nov 28 20:00:47 UTC 2011
Author: pho
Date: Mon Nov 28 20:00:47 2011
New Revision: 228094
URL: http://svn.freebsd.org/changeset/base/228094
Log:
Added regression test.
Added:
projects/stress2/misc/readdir.sh (contents, props changed)
Added: projects/stress2/misc/readdir.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/stress2/misc/readdir.sh Mon Nov 28 20:00:47 2011 (r228094)
@@ -0,0 +1,133 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2011 Peter Holm <pho at FreeBSD.org>
+# 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.
+#
+# $FreeBSD$
+#
+
+
+# readdir(3) fuzzing inspired by the iknowthis test suite
+# by Tavis Ormandy <taviso cmpxchg8b com>
+
+# "panic: kmem_malloc(1328054272): kmem_map too small" seen
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > readdir.c
+cc -o readdir -Wall -Wextra readdir.c
+rm -f readdir.c
+
+mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
+mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
+
+
+mount -t tmpfs tmpfs $mntpoint
+echo "Testing tmpfs(5)"
+cp -a /usr/include $mntpoint
+/tmp/readdir $mntpoint
+umount $mntpoint
+
+echo "Testing fdescfs(5)"
+/tmp/readdir /dev/fs
+
+echo "Testing procfs(5)"
+mount -t procfs procfs $mntpoint
+/tmp/readdir $mntpoint
+umount $mntpoint
+
+mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 1g -u $mdstart || exit 1
+bsdlabel -w md$mdstart auto
+newfs -U md${mdstart}$part > /dev/null
+mount /dev/md${mdstart}$part $mntpoint
+cp -a /usr/include $mntpoint
+echo "Testing FFS"
+/tmp/readdir $mntpoint
+umount $mntpoint
+
+mount -t nullfs /bin $mntpoint
+echo "Testing nullfs(5)"
+/tmp/readdir $mntpoint
+umount $mntpoint
+
+rm -f /tmp/readdir
+exit 0
+EOF
+#include <sys/types.h>
+#include <strings.h>
+#include <dirent.h>
+#include <err.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+static void
+hand(int i __unused) { /* handler */
+ _exit(1);
+}
+
+int
+test(char *path)
+{
+
+ DIR *dirp, fuzz;
+ int i;
+
+ signal(SIGSEGV, hand);
+
+ for (i = 0; i < 2000; i++) {
+ if ((dirp = opendir(path)) == NULL)
+ break;
+ bcopy(dirp, &fuzz, sizeof(fuzz));
+ fuzz.dd_len = arc4random();
+ readdir(&fuzz);
+ closedir(dirp);
+ }
+
+ exit(0);
+}
+
+int
+main(int argc __unused, char **argv)
+{
+ int i;
+
+ for (i = 0; i < 1000; i++) {
+ if (fork() == 0)
+ test(argv[1]);
+ wait(NULL);
+ }
+
+ return (0);
+}
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