ostree/tests/test-delta-sign.sh

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#!/bin/bash
#
# Copyright (C) 2011,2013 Colin Walters <walters@verbum.org>
#
# SPDX-License-Identifier: LGPL-2.0+
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <https://www.gnu.org/licenses/>.
set -euo pipefail
. $(dirname $0)/libtest.sh
skip_without_user_xattrs
bindatafiles="bash true ostree"
echo '1..7'
# This is explicitly opt in for testing
export OSTREE_DUMMY_SIGN_ENABLED=1
mkdir repo
ostree_repo_init repo --mode=archive
mkdir files
for bin in ${bindatafiles}; do
cp $(which ${bin}) files
done
${CMD_PREFIX} ostree --repo=repo commit -b test -s test --tree=dir=files
function permuteFile() {
permutation=$(($1 % 2))
output=$2
case $permutation in
0) dd if=/dev/zero count=40 bs=1 >> $output;;
1) echo aheader | cat - $output >> $output.new && mv $output.new $output;;
esac
}
function permuteDirectory() {
permutation=$1
dir=$2
for x in ${dir}/*; do
for z in $(seq ${permutation}); do
permuteFile ${z} ${x}
done
done
}
get_assert_one_direntry_matching() {
local path=$1
local r=$2
local child=""
local bn
for p in ${path}/*; do
bn=$(basename $p)
if ! echo ${bn} | grep -q "$r"; then
continue
fi
if test -z "${child}"; then
child=${bn}
else
assert_not_reached "Expected only one child matching ${r} in ${path}";
fi
done
if test -z "${child}"; then
assert_not_reached "Failed to find child matching ${r}"
fi
echo ${child}
}
origrev=$(${CMD_PREFIX} ostree --repo=repo rev-parse test)
permuteDirectory 1 files
${CMD_PREFIX} ostree --repo=repo commit -b test -s test --tree=dir=files
newrev=$(${CMD_PREFIX} ostree --repo=repo rev-parse test)
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev}
${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} dummysign > show-not-signed.txt 2>&1 && exit 1
assert_file_has_content show-not-signed.txt "Verification fails"
assert_file_has_content show-not-signed.txt "no signatures in static-delta"
deltaprefix=$(get_assert_one_direntry_matching repo/deltas '.')
deltadir=$(get_assert_one_direntry_matching repo/deltas/${deltaprefix} '-')
rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --inline
${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} dummysign > show-inline-not-signed.txt 2>&1 && exit 1
assert_file_has_content show-not-signed.txt "Verification fails"
assert_file_has_content show-not-signed.txt "no signatures in static-delta"
echo 'ok verify ok with unsigned deltas'
rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --sign-type=dummy --sign=dummysign
${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} dummysign > show-dummy-signed.txt
assert_file_has_content show-dummy-signed.txt "Verification OK"
rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --inline --sign-type=dummy --sign=dummysign
${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} dummysign > show-dummy-inline-signed.txt
assert_file_has_content show-dummy-inline-signed.txt "Verification OK"
echo 'ok verified with dummy'
rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --sign-type=dummy --sign=dummysign
${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} badsign > show-dummy-bad-signed.txt && exit 1
assert_file_has_content show-dummy-bad-signed.txt "Verification fails"
rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --inline --sign-type=dummy --sign=dummysign
${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} badsign > show-dummy-bad-inline-signed.txt && exit 1
assert_file_has_content show-dummy-bad-inline-signed.txt "Verification fails"
echo 'ok verification failed with dummy and bad key'
rm -rf repo2
ostree_repo_init repo2 --mode=bare-user
${CMD_PREFIX} ostree --repo=repo2 pull-local repo ${origrev}
${CMD_PREFIX} ostree --repo=repo2 ls ${origrev} >/dev/null
${CMD_PREFIX} ostree --repo=repo2 static-delta apply-offline repo/deltas/${deltaprefix}/${deltadir}
${CMD_PREFIX} ostree --repo=repo2 fsck
${CMD_PREFIX} ostree --repo=repo2 ls ${newrev} >/dev/null
echo 'ok apply offline with no signature verification and no key'
rm -rf repo2
ostree_repo_init repo2 --mode=bare-user
${CMD_PREFIX} ostree --repo=repo2 config set core.sign-verify-deltas true
${CMD_PREFIX} ostree --repo=repo2 pull-local repo ${origrev}
${CMD_PREFIX} ostree --repo=repo2 ls ${origrev} >/dev/null
${CMD_PREFIX} ostree --repo=repo2 static-delta apply-offline repo/deltas/${deltaprefix}/${deltadir} 2> apply-offline-verification-no-key.txt && exit 1
assert_file_has_content apply-offline-verification-no-key.txt "Key is mandatory to check delta signature"
echo 'ok apply offline failed with signature verification forced and no key'
rm -rf repo2
ostree_repo_init repo2 --mode=bare-user
${CMD_PREFIX} ostree --repo=repo2 pull-local repo ${origrev}
${CMD_PREFIX} ostree --repo=repo2 ls ${origrev} >/dev/null
${CMD_PREFIX} ostree --repo=repo2 static-delta apply-offline --sign-type=dummy repo/deltas/${deltaprefix}/${deltadir} dummysign
${CMD_PREFIX} ostree --repo=repo2 fsck
${CMD_PREFIX} ostree --repo=repo2 ls ${newrev} >/dev/null
echo 'ok apply offline with dummy'
rm -rf repo2
ostree_repo_init repo2 --mode=bare-user
${CMD_PREFIX} ostree --repo=repo2 pull-local repo ${origrev}
${CMD_PREFIX} ostree --repo=repo2 ls ${origrev} >/dev/null
${CMD_PREFIX} ostree --repo=repo2 static-delta apply-offline --sign-type=dummy repo/deltas/${deltaprefix}/${deltadir} badsign 2> apply-offline-bad-key.txt && exit 1
assert_file_has_content apply-offline-bad-key.txt "signature: dummy: incorrect signatures found: 1"
echo 'ok apply offline failed with dummy and bad key'