svn commit: r191485 - projects/stress2/misc
Peter Holm
pho at FreeBSD.org
Sat Apr 25 10:19:36 UTC 2009
Author: pho
Date: Sat Apr 25 10:19:36 2009
New Revision: 191485
URL: http://svn.freebsd.org/changeset/base/191485
Log:
Added test scenarios by tegge, used in connection with the r191315 fix.
Added:
projects/stress2/misc/rename.sh (contents, props changed)
projects/stress2/misc/rename2.sh (contents, props changed)
projects/stress2/misc/rename3.sh (contents, props changed)
Added: projects/stress2/misc/rename.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/stress2/misc/rename.sh Sat Apr 25 10:19:36 2009 (r191485)
@@ -0,0 +1,121 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2009 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.
+#
+# $FreeBSD$
+#
+
+# Test race between ISDOTDOT lookups and directory removal/rename
+
+# With lookup_shared=1 rename() will fail from time to time with ENOENT and
+# the following stat() will succed.
+
+# Test scenario by tegge
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > rename.c
+cc -o rename -Wall rename.c
+rm -f rename.c
+cd $here
+
+rm -rf /tmp/rename.dir.*
+for i in `jot 10`; do
+ for j in `jot 10`; do
+ /tmp/rename &
+ done
+ for j in `jot 10`; do
+ wait
+ done
+done
+rm -rf /tmp/rename.dir.*
+exit 0
+EOF
+#include <err.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+static char dir1[128];
+static char dir2[128];
+
+int
+main(int argc, char **argv)
+{
+ int i, status;
+ struct stat sb;
+ pid_t p;
+
+ sprintf(dir1, "/tmp/rename.dir.%d", getpid());
+ sprintf(dir2, "/tmp/rename.dir.2.%d", getpid());
+ if (mkdir(dir1, 0700) == -1)
+ err(1, "mkdir(%s)", dir1);
+
+ if (chdir(dir1) == -1)
+ err(1, "chdir(%s)", dir1);
+ if ((p = fork()) == -1)
+ err(1, "fork()");
+ if (p == 0) {
+ if (chdir("..") == -1)
+ err(1, "chdir(%s)", "..");
+ for (i = 0; i < 100000; i++) {
+ if (rename(dir1, dir2) == -1) {
+ warn("rename(%s, %s)", dir1, dir2);
+ stat(dir1, &sb);
+ if (stat(dir1, &sb) == -1)
+ err(1, "stat(%s)", dir1);
+ else
+ errx(1, "stat(%s) succeeded!", dir1);
+ }
+ if (rename(dir2, dir1) == -1) {
+ warn("rename(%s, %s)", dir2, dir1);
+ stat(dir2, &sb);
+ if (stat(dir2, &sb) == -1)
+ err(1, "stat(%s)", dir2);
+ else
+ errx(1, "stat(%s) succeeded!", dir2);
+ }
+ }
+ exit(0);
+ } else {
+ for (i = 0; i < 100000; i++) {
+ if (stat("..", &sb) == -1)
+ err(1, "stat(..)");
+ }
+ }
+ if (waitpid(p, &status, 0) == -1)
+ err(1, "waitpid()");
+ if (rmdir(dir1) == -1)
+ err(1, "rmdir(%s)", dir1);
+
+ return (0);
+}
Added: projects/stress2/misc/rename2.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/stress2/misc/rename2.sh Sat Apr 25 10:19:36 2009 (r191485)
@@ -0,0 +1,102 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2009 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.
+#
+# $FreeBSD$
+#
+
+# With lookup_shared=1 rename() will fail from time to time with ENOENT and
+# the following stat() will succeed. (Variation of rename.sh)
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > rename.c
+cc -o rename -Wall rename.c
+rm -f rename.c
+cd $here
+
+rm -rf /tmp/rename.dir.*
+for i in `jot 10`; do
+ for j in `jot 10`; do
+ /tmp/rename &
+ done
+ for j in `jot 10`; do
+ wait
+ done
+done
+rm -rf /tmp/rename.dir.*
+exit 0
+EOF
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+static char dir1[128];
+static char dir2[128];
+
+int
+main(int argc, char **argv)
+{
+ int i;
+ struct stat sb;
+
+ sprintf(dir1, "/tmp/rename.dir.%d", getpid());
+ sprintf(dir2, "/tmp/rename.dir.2.%d", getpid());
+ if (mkdir(dir1, 0700) == -1)
+ err(1, "mkdir(%s)", dir1);
+
+ if (chdir(dir1) == -1)
+ err(1, "chdir(%s)", dir1);
+ if (chdir("..") == -1)
+ err(1, "chdir(%s)", "..");
+
+ for (i = 0; i < 100000; i++) {
+ if (rename(dir1, dir2) == -1) {
+ warn("rename(%s, %s)", dir1, dir2);
+ if (stat(dir1, &sb) == -1)
+ err(1, "stat(%s)", dir1);
+ else
+ errx(1, "stat(%s) succeeded!", dir1);
+ }
+ if (rename(dir2, dir1) == -1) {
+ warn("rename(%s, %s)", dir2, dir1);
+ if (stat(dir2, &sb) == -1)
+ err(1, "stat(%s)", dir2);
+ else
+ errx(1, "stat(%s) succeeded!", dir2);
+ }
+ }
+
+ if (rmdir(dir1) == -1)
+ err(1, "rmdir(%s)", dir1);
+
+ return (0);
+}
Added: projects/stress2/misc/rename3.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/stress2/misc/rename3.sh Sat Apr 25 10:19:36 2009 (r191485)
@@ -0,0 +1,49 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2009 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.
+#
+# $FreeBSD$
+#
+
+# Test vulnerability to transient failures when a directory closer
+# to the root directory is renamed
+
+# Test scenario by Tor Egge
+
+root=/tmp
+for i in `jot 10000`; do
+ rm -rf ${root}/a
+ mkdir -p ${root}/a/b/c/d/e/f/g
+ mkdir -p ${root}/a/b/c/d/e/f/z
+ cd ${root}/a/b/c/d/e/f
+ ( mv ${root}/a/b/c ${root}/a/c ) &
+ if ! mv z g/z; then
+ echo "FAILURE at loop $i"
+ break
+ fi
+ wait
+done
+rm -rf ${root}/a
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