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#!/bin/bash -eux
# Copyright 2015 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
me=${0##*/}
TMP="$me.tmp"
# Work in scratch directory
cd "$OUTDIR"
# The signed input images are signed with dev keys. We resign the unsigned
# images with the same keypair, to make sure that we're producing identical
# binaries.
DATADIR="${SCRIPT_DIR}/futility/data"
TESTS="dingdong hoho minimuffin zinger"
set -o pipefail
count=0
for test in $TESTS; do
: $(( count++ ))
echo -n "$count " 1>&3
pemfile=${DATADIR}/${test}.pem
infile=${DATADIR}/${test}.unsigned
goodfile=${DATADIR}/${test}.signed
outfile=${TMP}.${test}.new
# Signing the whole thing with futility should produce identical results
${FUTILITY} sign --type usbpd1 --pem ${pemfile} ${infile} ${outfile}
cmp ${goodfile} ${outfile}
# Now try signing just the RW part
size=$(stat -c '%s' ${infile})
half=$(( size / 2 ))
newin=${TMP}.${test}.rw_in
dd if=${infile} bs=${half} count=1 skip=1 of=${newin}
newgood=${TMP}.${test}.rw_ok
dd if=${goodfile} bs=${half} count=1 skip=1 of=${newgood}
newout=${TMP}.${test}.rw_out
# Sign the RW part alone
${FUTILITY} sign --type usbpd1 --pem ${pemfile} \
--ro_size 0 \
${newin} ${newout}
cmp ${newgood} ${newout}
done
# cleanup
rm -rf ${TMP}*
exit 0
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