1#!/bin/sh 2 3# 4# Copyright (c) 2013 EMC Corp. 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# Regression test for r218019: "panic: oof, we didn't get our fd" 30 31# Page fault seen: 32# https://people.freebsd.org/~pho/stress/log/kostik895.txt 33# Caused by r300792 + r300793. 34# Fixed by r301580. 35 36[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 37 38. ../default.cfg 39 40odir=`pwd` 41cd /tmp 42sed '1,/^EOF/d' < $odir/$0 > setuid.c 43rm -f /tmp/setuid 44mycc -o setuid -Wall -Wextra -O2 -g setuid.c -static || exit 1 45rm -f setuid.c 46 47mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 48mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart 49 50mdconfig -a -t swap -s 2g -u $mdstart || exit 1 51bsdlabel -w md$mdstart auto 52newfs $newfs_flags md${mdstart}$part > /dev/null 53mount /dev/md${mdstart}$part $mntpoint 54chmod 777 $mntpoint 55mkdir $mntpoint/root 56 57cp /tmp/setuid $mntpoint/root/nop 58chown nobody:nobody $mntpoint/root/nop 59chmod 4755 $mntpoint/root/nop 60 61chmod 777 $mntpoint/root 62 63echo "Expect Abort trap" 64./setuid $mntpoint/root 1 65./setuid $mntpoint/root 2 66./setuid $mntpoint/root 3 67./setuid $mntpoint/root 4 68./setuid $mntpoint/root 5 69./setuid $mntpoint/root 6 70./setuid $mntpoint/root 7 71 72while mount | grep "on $mntpoint " | grep -q /dev/md; do 73 umount $mntpoint || sleep 1 74done 75mdconfig -d -u $mdstart 76rm -f /tmp/setuid /tmp/nop 77exit 78EOF 79#include <sys/types.h> 80#include <pwd.h> 81#include <err.h> 82#include <stdio.h> 83#include <stdlib.h> 84#include <unistd.h> 85 86int 87main(int argc, char **argv) 88{ 89 char *av[2]; 90 int fd; 91 92 if (argc == 1) 93 return (0); 94 95 if (chroot(argv[1]) != 0) 96 err(1, "chroot(%s)", argv[1]); 97 fd = atoi(argv[2]); 98 99 if (fd & 1) { 100 fprintf(stderr, "Close fd 0 "); 101 close(0); 102 } 103 if (fd & 2) { 104 fprintf(stderr, "Close fd 1 "); 105 close(1); 106 } 107 if (fd & 4) { 108 fprintf(stderr, "Close fd 2\n"); 109 close(2); 110 } else 111 fprintf(stderr, "\n"); 112 113 if (chdir("/") != 0) 114 err(1, "chdir"); 115 av[0] = "/nop"; 116 av[1] = 0; 117 if (execve(av[0], av, NULL) == -1) 118 err(1, "execve"); 119 120 return (0); 121} 122