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# $NetBSD: t_random_garbage.sh,v 1.4 2020/07/27 07:36:19 jruoho Exp $
#
# Copyright (c) 2020 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Jukka Ruohonen.
#
# 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
#
getrint() {
echo $(od -An -N2 -i /dev/urandom | sed 's/ //')
}
getrstr() {
echo $(cat /dev/urandom | head -n 1 | base64)
}
write_garbage() {
val=$(getrint)
echo "Test $3: write to $1 opt $2 -> $val"
ifconfig $1 $2 $val >/dev/null 2>&1
val=$(getrstr)
echo "Test $3: write to $1 opt $2 -> $val"
ifconfig $1 $2 $val >/dev/null 2>&1
}
atf_test_case random_garbage
random_garbage_head() {
atf_set "require.user" "root"
atf_set "descr" "Test writing random garbage to " \
"ifconfig(8) options (PR kern/55451)"
}
random_garbage_body() {
# Please note:
#
# 1. As some drivers seem to have input validation issues, it may
# be possible that horrors are written directly to the hardware.
#
# 2. Even if the test passes, there is no easy way to restore
# the existing state/configuration of any given interface.
#
# Take care.
#
if ! [ $(atf_config_get "run_unsafe" "no") = "yes" ]; then
atf_skip "The test is not safe (PR kern/55451)"
fi
opts="advbase advskew broadcast carpdev description \
media mediaopt -mediaopt mode instance metric mtu \
netmask state frag rts ssid nwid nwkey pass powersavesleep \
bssid chan tunnel session cookie pltime prefixlen linkstr \
vhid vlan vlanif -vlanif agrport -agrport vltime maxupd \
syncdev syncpeer"
for i in $(ifconfig -l); do
ifconfig $i up
for o in $opts; do
n=10
while [ $n -gt 0 ]; do
write_garbage $i $o $n
n=$(expr $n - 1)
done
done
done
atf_pass
}
atf_init_test_cases() {
atf_add_test_case random_garbage
}
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