1 #!/bin/sh 2 # 3 # Check that fault injection works properly. 4 # 5 # Copyright (c) 2016 Dmitry V. Levin <ldv (at] altlinux.org> 6 # Copyright (c) 2016-2017 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 38 N=100 39 40 check_fault_injection() 41 { 42 local trace fault err first step procs extra 43 trace=$1; shift 44 fault=$1; shift 45 err=$1; shift 46 first=$1; shift 47 step=$1; shift 48 procs=$1; shift 49 extra="$*" 50 51 local when= 52 if [ -z "$first$step" ]; then 53 first=1 54 step=1 55 else 56 case "$step" in 57 '') when=":when=$first"; step=0 ;; 58 +) when=":when=$first+"; step=1 ;; 59 *) when=":when=$first+$step" ;; 60 esac 61 fi 62 63 local error= 64 local raw=reg 65 set -- 66 case "$err" in 67 '') ;; 68 [123456789]*) 69 error=":error=$err" 70 raw=raw 71 set -- -e raw=all 72 ;; 73 *) error=":error=$err" ;; 74 esac 75 76 outexp="$NAME.out.exp" 77 outgot="$NAME.out.got" 78 outout="$NAME.out.out" 79 outpid="$NAME.pid" 80 81 run_strace -a11 -ff -e trace=$trace \ 82 "$@" -e fault=$fault$when$error $extra \ 83 ../$NAME $raw "$err" "$first" "$step" $N \ 84 "$procs" "$outexp" "$outgot" "$outout" "$outpid" 85 86 for i in $(seq 0 $((procs - 1)) ) 87 do 88 pid=$(cat "$outpid.$i") 89 90 match_diff "$outout.$i" "$LOG.$pid" 91 match_diff "$outexp.$i" "$outgot.$i" 92 done 93 } 94 95 for err in '' ENOSYS 22 einval; do 96 for fault in writev desc,51; do 97 check_fault_injection \ 98 writev $fault "$err" '' '' 1 -efault=chdir 99 check_fault_injection \ 100 writev $fault "$err" '' '' 1 -efault=chdir -efault=none 101 for F in 1 2 3 5 7 11; do 102 check_fault_injection \ 103 writev $fault "$err" $F '' 1 104 check_fault_injection \ 105 writev $fault "$err" $F + 1 106 for S in 1 2 3 5 7 11; do 107 check_fault_injection \ 108 writev $fault "$err" $F $S 1 109 check_fault_injection \ 110 writev $fault "$err" $F $S 4 111 done 112 done 113 done 114 done 115
