1#!/bin/sh -efu 2# 3# Check that fault injection works properly. 4# 5# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> 6# Copyright (c) 2016-2018 The strace developers. 7# All rights reserved. 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# 3. The name of the author may not be used to endorse or promote products 18# derived from this software without specific prior written permission. 19# 20# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31. "${srcdir=.}/scno_tampering.sh" 32 33# 34# F 35# F+ 36# F+S 37 38N=100 39 40: ${suffix=} 41[ -z "${name_override-}" ] || NAME="$name_override" 42 43check_fault_injection() 44{ 45 local trace fault err first step procs extra 46 trace=$1; shift 47 fault=$1; shift 48 err=$1; shift 49 first=$1; shift 50 step=$1; shift 51 procs=$1; shift 52 extra="$*" 53 54 local when= 55 if [ -z "$first$step" ]; then 56 first=1 57 step=1 58 else 59 case "$step" in 60 '') when=":when=$first"; step=0 ;; 61 +) when=":when=$first+"; step=1 ;; 62 *) when=":when=$first+$step" ;; 63 esac 64 fi 65 66 local error= 67 local raw=reg 68 set -- 69 case "$err" in 70 '') ;; 71 [123456789]*) 72 error=":error=$err" 73 raw=raw 74 set -- -e raw=all 75 ;; 76 *) error=":error=$err" ;; 77 esac 78 79 outexp="$NAME.out.exp" 80 outgot="$NAME.out.got" 81 outout="$NAME.out.out" 82 outpid="$NAME.pid" 83 84 run_strace -a11 -ff -e trace=$trace \ 85 "$@" -e fault=$fault$when$error$suffix $extra \ 86 ../$NAME $raw "$err" "$first" "$step" $N \ 87 "$procs" "$outexp" "$outgot" "$outout" "$outpid" 88 89 for i in $(seq 0 $((procs - 1)) ) 90 do 91 pid=$(cat "$outpid.$i") 92 93 match_diff "$LOG.$pid" "$outout.$i" 94 match_diff "$outgot.$i" "$outexp.$i" 95 done 96} 97 98for err in '' ENOSYS 22 einval; do 99 for fault in writev desc,51; do 100 check_fault_injection \ 101 writev $fault "$err" '' '' 1 -efault=chdir 102 check_fault_injection \ 103 writev $fault "$err" '' '' 1 -efault=chdir -efault=none 104 for F in 1 2 3 5 7 11; do 105 check_fault_injection \ 106 writev $fault "$err" $F '' 1 107 check_fault_injection \ 108 writev $fault "$err" $F + 1 109 for S in 1 2 3 5 7 11; do 110 check_fault_injection \ 111 writev $fault "$err" $F $S 1 112 check_fault_injection \ 113 writev $fault "$err" $F $S 4 114 done 115 done 116 done 117done 118