1#!/bin/sh 2 3# 4# Copyright (c) 2008 Peter Holm <pho@FreeBSD.org> 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28 29# Test scenario by kib@freebsd.org 30 31# Test of patch for Giant trick in cdevsw 32 33[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 34[ -d /usr/src/sys ] || exit 0 35builddir=`sysctl kern.version | grep @ | sed 's/.*://'` 36[ -d "$builddir" ] && export KERNBUILDDIR=$builddir || exit 0 37export SYSDIR=`echo $builddir | sed 's#/sys.*#/sys#'` 38 39. ../default.cfg 40 41odir=`pwd` 42dir=$RUNDIR/fpclone 43[ ! -d $dir ] && mkdir -p $dir 44 45cd $dir 46cat > Makefile <<EOF 47KMOD= fpclone 48SRCS= fpclone.c 49 50.include <bsd.kmod.mk> 51EOF 52 53sed '1,/^EOF2/d' < $odir/fpclone.sh > fpclone.c 54make 55kldload $dir/fpclone.ko 56 57sed '1,/^EOF2/d' < $odir/$0 > fpclone2.c 58mycc -o /tmp/fpclone2 -Wall fpclone2.c 59rm -f fpclone2.c 60 61cd $odir 62for i in `jot 10`; do 63 /tmp/fpclone2 & 64done 65 66for i in `jot 10`; do 67 wait 68done 69kldstat 70kldunload $dir/fpclone.ko 71rm -rf $dir /tmp/fpclone2 72exit 73 74EOF2 75#include <stdlib.h> 76#include <stdio.h> 77#include <unistd.h> 78#include <fcntl.h> 79#include <errno.h> 80#include <err.h> 81 82int 83main(int argc, char **argv) 84{ 85 int fd; 86 int i; 87 char buf[80]; 88 89 for (i = 0; i < 10000; i++) { 90 if ((fd = open("/dev/fpclone", O_RDONLY)) == -1) 91 err(1, "open(/dev/fpclone"); 92 if (read(fd, buf, sizeof(buf)) <= 0) 93 err(1, "read"); 94 if (dup2(fd, 10) == -1) 95 err(1, "dup"); 96 if (dup2(fd, 11) == -1) 97 err(1, "dup"); 98 if (dup2(fd, 12) == -1) 99 err(1, "dup"); 100 if (close(fd) == -1) 101 err(1, "close(%d)", fd); 102 if (close(10) == -1) 103 err(1, "close(%d)", 10); 104 if (close(11) == -1) 105 err(1, "close(%d)", 11); 106 if (close(12) == -1) 107 err(1, "close(%d)", 12); 108 } 109 if ((fd = open("/dev/fpclone", O_WRONLY)) == -1) 110 err(1, "open(/dev/fpclone"); 111 if (write(fd, "xxx", 3) == -1 && errno != ENODEV) 112 err(1, "write"); 113 if (close(fd) == -1) 114 err(1, "close(%d)", fd); 115 116 return (0); 117} 118