Files
cubelinux-kernel/certs/check-blacklist-hashes.awk
Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

38 lines
1.0 KiB
Awk
Executable File

#!/usr/bin/awk -f
# SPDX-License-Identifier: GPL-2.0
#
# Copyright © 2020, Microsoft Corporation. All rights reserved.
#
# Author: Mickaël Salaün <mic@linux.microsoft.com>
#
# Check that a CONFIG_SYSTEM_BLACKLIST_HASH_LIST file contains a valid array of
# hash strings. Such string must start with a prefix ("tbs" or "bin"), then a
# colon (":"), and finally an even number of hexadecimal lowercase characters
# (up to 128).
BEGIN {
RS = ","
}
{
if (!match($0, "^[ \t\n\r]*\"([^\"]*)\"[ \t\n\r]*$", part1)) {
print "Not a string (item " NR "):", $0;
exit 1;
}
if (!match(part1[1], "^(tbs|bin):(.*)$", part2)) {
print "Unknown prefix (item " NR "):", part1[1];
exit 1;
}
if (!match(part2[2], "^([0-9a-f]+)$", part3)) {
print "Not a lowercase hexadecimal string (item " NR "):", part2[2];
exit 1;
}
if (length(part3[1]) > 128) {
print "Hash string too long (item " NR "):", part3[1];
exit 1;
}
if (length(part3[1]) % 2 == 1) {
print "Not an even number of hexadecimal characters (item " NR "):", part3[1];
exit 1;
}
}