Date: Sat, 25 Apr 2009 10:19:36 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r191485 - projects/stress2/misc Message-ID: <200904251019.n3PAJa32050449@svn.freebsd.org>
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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@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@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@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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