#!/bin/sh -efu
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#
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# Check that fault injection works properly.
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#
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# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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# Copyright (c) 2016-2018 The strace developers.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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. "${srcdir=.}/scno_tampering.sh"
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#
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# F
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# F+
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# F+S
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N=100
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: ${suffix=}
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[ -z "${name_override-}" ] || NAME="$name_override"
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check_fault_injection()
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{
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local trace fault err first step procs extra
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trace=$1; shift
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fault=$1; shift
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err=$1; shift
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first=$1; shift
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step=$1; shift
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procs=$1; shift
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extra="$*"
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local when=
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if [ -z "$first$step" ]; then
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first=1
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step=1
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else
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case "$step" in
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'') when=":when=$first"; step=0 ;;
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+) when=":when=$first+"; step=1 ;;
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*) when=":when=$first+$step" ;;
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esac
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fi
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local error=
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local raw=reg
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set --
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case "$err" in
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'') ;;
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[123456789]*)
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error=":error=$err"
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raw=raw
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set -- -e raw=all
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;;
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*) error=":error=$err" ;;
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esac
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outexp="$NAME.out.exp"
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outgot="$NAME.out.got"
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outout="$NAME.out.out"
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outpid="$NAME.pid"
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run_strace -a11 -ff -e trace=$trace \
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"$@" -e fault=$fault$when$error$suffix $extra \
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../$NAME $raw "$err" "$first" "$step" $N \
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"$procs" "$outexp" "$outgot" "$outout" "$outpid"
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for i in $(seq 0 $((procs - 1)) )
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do
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pid=$(cat "$outpid.$i")
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match_diff "$LOG.$pid" "$outout.$i"
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match_diff "$outgot.$i" "$outexp.$i"
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done
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}
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for err in '' ENOSYS 22 einval; do
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for fault in writev desc,51; do
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check_fault_injection \
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writev $fault "$err" '' '' 1 -efault=chdir
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check_fault_injection \
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writev $fault "$err" '' '' 1 -efault=chdir -efault=none
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for F in 1 2 3 5 7 11; do
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check_fault_injection \
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writev $fault "$err" $F '' 1
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check_fault_injection \
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writev $fault "$err" $F + 1
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for S in 1 2 3 5 7 11; do
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check_fault_injection \
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writev $fault "$err" $F $S 1
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check_fault_injection \
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writev $fault "$err" $F $S 4
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done
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done
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done
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done
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