40 lines
1.3 KiB
Bash
40 lines
1.3 KiB
Bash
#!/usr/bin/env bash
|
|
|
|
# Copyright 2025 Universal Blue
|
|
# Copyright 2025 The Secureblue Authors
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software distributed under the License is
|
|
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and limitations under the License.
|
|
|
|
set -oue pipefail
|
|
|
|
KERNEL="$1"
|
|
module="$2"
|
|
PUBLIC_CERT="$3"
|
|
|
|
kmod_sig="/tmp/kmod.sig"
|
|
kmod_p7s="/tmp/kmod.p7s"
|
|
kmod_data="/tmp/kmod.data"
|
|
/usr/src/kernels/"${KERNEL}"/scripts/extract-module-sig.pl -s "${module}" > "${kmod_sig}"
|
|
openssl pkcs7 -inform der -in "${kmod_sig}" -out "${kmod_p7s}"
|
|
/usr/src/kernels/"${KERNEL}"/scripts/extract-module-sig.pl -0 "${module}" > "${kmod_data}"
|
|
if openssl cms -verify -binary -inform PEM \
|
|
-in "${kmod_p7s}" \
|
|
-content "${kmod_data}" \
|
|
-certfile "${PUBLIC_CERT}" \
|
|
-out "/dev/null" \
|
|
-nointern -noverify
|
|
then
|
|
echo "Signature Verified for ${module}"
|
|
else
|
|
echo "Signature Failed for ${module}"
|
|
exit 1
|
|
fi
|