1# $NetBSD: t_random_garbage.sh,v 1.4 2020/07/27 07:36:19 jruoho Exp $ 2# 3# Copyright (c) 2020 The NetBSD Foundation, Inc. 4# All rights reserved. 5# 6# This code is derived from software contributed to The NetBSD Foundation 7# by Jukka Ruohonen. 8# 9# Redistribution and use in source and binary forms, with or without 10# modification, are permitted provided that the following conditions 11# are met: 12# 1. Redistributions of source code must retain the above copyright 13# notice, this list of conditions and the following disclaimer. 14# 2. Redistributions in binary form must reproduce the above copyright 15# notice, this list of conditions and the following disclaimer in the 16# documentation and/or other materials provided with the distribution. 17# 18# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28# POSSIBILITY OF SUCH DAMAGE. 29# 30getrint() { 31 echo $(od -An -N2 -i /dev/urandom | sed 's/ //') 32} 33 34getrstr() { 35 echo $(cat /dev/urandom | head -n 1 | base64) 36} 37 38write_garbage() { 39 val=$(getrint) 40 echo "Test $3: write to $1 opt $2 -> $val" 41 ifconfig $1 $2 $val >/dev/null 2>&1 42 val=$(getrstr) 43 echo "Test $3: write to $1 opt $2 -> $val" 44 ifconfig $1 $2 $val >/dev/null 2>&1 45} 46 47atf_test_case random_garbage 48random_garbage_head() { 49 atf_set "require.user" "root" 50 atf_set "descr" "Test writing random garbage to " \ 51 "ifconfig(8) options (PR kern/55451)" 52} 53 54random_garbage_body() { 55 56 # Please note: 57 # 58 # 1. As some drivers seem to have input validation issues, it may 59 # be possible that horrors are written directly to the hardware. 60 # 61 # 2. Even if the test passes, there is no easy way to restore 62 # the existing state/configuration of any given interface. 63 # 64 # Take care. 65 # 66 if ! [ $(atf_config_get "run_unsafe" "no") = "yes" ]; then 67 atf_skip "The test is not safe (PR kern/55451)" 68 fi 69 70 opts="advbase advskew broadcast carpdev description \ 71 media mediaopt -mediaopt mode instance metric mtu \ 72 netmask state frag rts ssid nwid nwkey pass powersavesleep \ 73 bssid chan tunnel session cookie pltime prefixlen linkstr \ 74 vhid vlan vlanif -vlanif agrport -agrport vltime maxupd \ 75 syncdev syncpeer" 76 77 for i in $(ifconfig -l); do 78 79 ifconfig $i up 80 81 for o in $opts; do 82 83 n=10 84 85 while [ $n -gt 0 ]; do 86 write_garbage $i $o $n 87 n=$(expr $n - 1) 88 done 89 done 90 done 91 92 atf_pass 93} 94 95atf_init_test_cases() { 96 atf_add_test_case random_garbage 97} 98