1 files changed, 179 insertions, 0 deletions
diff --git a/tools/test/stress2/misc/readdir.sh b/tools/test/stress2/misc/readdir.sh
new file mode 100755
index 000000000000..16523982d859
--- /dev/null
+++ b/tools/test/stress2/misc/readdir.sh
@@ -0,0 +1,179 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2011 Peter Holm <pho@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.
+#
+
+# 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
+mycc -o readdir -Wall -Wextra readdir.c || exit 1
+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)"
+kldstat -v | grep -q fdescfs || { kldload fdescfs.ko; loaded=1; }
+mount -t fdescfs null /dev/fd
+/tmp/readdir /dev/fd
+umount /dev/fd
+[ $unload ] && kldunload fdescfs.ko
+
+echo "Testing procfs(5)"
+mount -t procfs procfs $mntpoint
+/tmp/readdir $mntpoint
+umount $mntpoint
+
+if ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1; then
+	echo "Testing nfs"
+	mount -t nfs -o nfsv3,tcp,nolockd,retrycnt=3,soft,timeout=1 \
+	    $nfs_export $mntpoint
+	/tmp/readdir $mntpoint
+	umount $mntpoint
+fi
+
+mdconfig -a -t swap -s 1g -u $mdstart || exit 1
+bsdlabel -w md$mdstart auto
+newfs md${mdstart}$part > /dev/null
+mount /dev/md${mdstart}$part $mntpoint
+cp -a /usr/include $mntpoint
+echo "Testing UFS"
+/tmp/readdir $mntpoint
+umount $mntpoint
+mdconfig -d -u $mdstart
+
+mdconfig -a -t swap -s 1g -u $mdstart || exit 1
+bsdlabel -w md$mdstart auto
+newfs $newfs_flags md${mdstart}$part > /dev/null
+mount /dev/md${mdstart}$part $mntpoint
+cp -a /usr/include $mntpoint
+echo "Testing FFS"
+/tmp/readdir $mntpoint
+umount $mntpoint
+mdconfig -d -u $mdstart
+
+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 <sys/uio.h>
+#include <sys/wait.h>
+
+#include <dirent.h>
+#include <err.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <time.h>
+#include <unistd.h>
+
+#define RUNTIME 120
+
+/* copy from /usr/src/lib/libc/gen/gen-private.h */
+struct _telldir;		/* see telldir.h */
+struct pthread_mutex;
+
+/*
+ * Structure describing an open directory.
+ *
+ * NOTE. Change structure layout with care, at least dd_fd field has to
+ * remain unchanged to guarantee backward compatibility.
+ */
+struct _dirdesc {
+	int	dd_fd;		/* file descriptor associated with directory */
+	long	dd_loc;		/* offset in current buffer */
+	long	dd_size;	/* amount of data returned by getdirentries */
+	char	*dd_buf;	/* data buffer */
+	int	dd_len;		/* size of data buffer */
+	long	dd_seek;	/* magic cookie returned by getdirentries */
+	long	dd_rewind;	/* magic cookie for rewinding */
+	int	dd_flags;	/* flags for readdir */
+	struct pthread_mutex	*dd_lock;	/* lock */
+	struct _telldir *dd_td;	/* telldir position recording */
+};
+/* End copy */
+
+static void
+hand(int i __unused) {	/* handler */
+	_exit(1);
+}
+
+static void
+test(char *path)
+{
+	DIR *dirp, fuzz;
+	int i;
+
+	signal(SIGSEGV, hand);
+	alarm(300);
+	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)
+{
+	time_t start;
+
+	start = time(NULL);
+	while (time(NULL) - start < RUNTIME) {
+		if (fork() == 0)
+			test(argv[1]);
+		wait(NULL);
+	}
+
+	return (0);
+}