1#!/bin/sh
2
3#
4# Copyright (c) 2017 Dell EMC Isilon
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 with stack_guard_page set between 1 and 512.
30# A negative value is considered invalid.
31
32[ `sysctl -n security.bsd.stack_guard_page` -eq 0 ] && exit 0
33
34old=`sysctl -n security.bsd.stack_guard_page`
35trap "sysctl security.bsd.stack_guard_page=$old" EXIT INT
36
37../misc/marcus.sh > /dev/null 2>&1 &
38
39start=`date +%s`
40while [ $((`date +%s` - start)) -lt 60 ]; do
41	sysctl security.bsd.stack_guard_page=`jot -r 1 1 512` > \
42	    /dev/null 2>&1
43	sleep 1
44done
45kill $!
46../tools/killall.sh
47wait
48./cleanup.sh
49
50exit 0
51