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 51newfs $newfs_flags md$mdstart > /dev/null 52mount /dev/md$mdstart $mntpoint 53chmod 777 $mntpoint 54mkdir $mntpoint/root 55 56cp /tmp/setuid $mntpoint/root/nop 57chown nobody:nobody $mntpoint/root/nop 58chmod 4755 $mntpoint/root/nop 59 60chmod 777 $mntpoint/root 61 62echo "Expect Abort trap" 63./setuid $mntpoint/root 1 64./setuid $mntpoint/root 2 65./setuid $mntpoint/root 3 66./setuid $mntpoint/root 4 67./setuid $mntpoint/root 5 68./setuid $mntpoint/root 6 69./setuid $mntpoint/root 7 70 71while mount | grep "on $mntpoint " | grep -q /dev/md; do 72 umount $mntpoint || sleep 1 73done 74mdconfig -d -u $mdstart 75rm -f /tmp/setuid /tmp/nop 76exit 77EOF 78#include <sys/types.h> 79#include <pwd.h> 80#include <err.h> 81#include <stdio.h> 82#include <stdlib.h> 83#include <unistd.h> 84 85int 86main(int argc, char **argv) 87{ 88 char *av[2]; 89 int fd; 90 91 if (argc == 1) 92 return (0); 93 94 if (chroot(argv[1]) != 0) 95 err(1, "chroot(%s)", argv[1]); 96 fd = atoi(argv[2]); 97 98 if (fd & 1) { 99 fprintf(stderr, "Close fd 0 "); 100 close(0); 101 } 102 if (fd & 2) { 103 fprintf(stderr, "Close fd 1 "); 104 close(1); 105 } 106 if (fd & 4) { 107 fprintf(stderr, "Close fd 2\n"); 108 close(2); 109 } else 110 fprintf(stderr, "\n"); 111 112 if (chdir("/") != 0) 113 err(1, "chdir"); 114 av[0] = "/nop"; 115 av[1] = 0; 116 if (execve(av[0], av, NULL) == -1) 117 err(1, "execve"); 118 119 return (0); 120} 121