You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
2.1 KiB
74 lines
2.1 KiB
14 years ago
|
#!/bin/sh
|
||
|
|
|
||
|
|
# Licensed under the GPLv2
|
||
|
|
#
|
||
|
|
# Copyright (C) 2011 Politecnico di Torino, Italy
|
||
|
|
# TORSEC group -- http://security.polito.it
|
||
|
|
# Roberto Sassu <roberto.sassu@polito.it>
|
||
|
|
|
||
|
|
MASTERKEYSCONFIG="${NEWROOT}/etc/sysconfig/masterkey"
|
||
|
|
MULTIKERNELMODE="NO"
|
||
|
|
PCRLOCKNUM=11
|
||
|
|
|
||
|
|
load_masterkey()
|
||
|
|
{
|
||
|
|
# read the configuration from the config file
|
||
|
|
[ -f "${MASTERKEYSCONFIG}" ] && \
|
||
|
|
. ${MASTERKEYSCONFIG}
|
||
|
|
|
||
|
|
# override the kernel master key path name from the 'masterkey=' parameter
|
||
|
|
# in the kernel command line
|
||
|
|
MASTERKEYARG=$(getarg masterkey=)
|
||
|
|
[ $? -eq 0 ] && \
|
||
|
|
MASTERKEY=${MASTERKEYARG}
|
||
|
|
|
||
|
|
# override the kernel master key type from the 'masterkeytype=' parameter
|
||
|
|
# in the kernel command line
|
||
|
|
MASTERKEYTYPEARG=$(getarg masterkeytype=)
|
||
|
|
[ $? -eq 0 ] && \
|
||
|
|
MASTERKEYTYPE=${MASTERKEYTYPEARG}
|
||
|
|
|
||
|
|
# set default values
|
||
|
|
[ -z "${MASTERKEYTYPE}" ] && \
|
||
|
|
MASTERKEYTYPE="trusted"
|
||
|
|
|
||
|
|
if [ -z "${MASTERKEY}" ]; then
|
||
|
|
# append the kernel version to the default masterkey path name
|
||
|
|
# if MULTIKERNELMODE is set to YES
|
||
|
|
if [ "${MULTIKERNELMODE}" = "YES" ]; then
|
||
|
|
MASTERKEY="/etc/keys/kmk-${MASTERKEYTYPE}-$(uname -r).blob"
|
||
|
|
else
|
||
|
|
MASTERKEY="/etc/keys/kmk-${MASTERKEYTYPE}.blob"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
# set the kernel master key path name
|
||
|
|
MASTERKEYPATH="${NEWROOT}${MASTERKEY}"
|
||
|
|
|
||
|
|
# check for kernel master key's existence
|
||
|
|
if [ ! -f "${MASTERKEYPATH}" ]; then
|
||
|
|
if [ "${RD_DEBUG}" = "yes" ]; then
|
||
|
|
info "masterkey: kernel master key file not found: ${MASTERKEYPATH}"
|
||
|
|
fi
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# read the kernel master key blob
|
||
|
|
KEYBLOB=$(cat ${MASTERKEYPATH})
|
||
|
|
|
||
|
|
# add the 'load' prefix if the key type is 'trusted'
|
||
|
|
[ "${MASTERKEYTYPE}" = "trusted" ] && \
|
||
|
|
KEYBLOB="load ${KEYBLOB} pcrlock=${PCRLOCKNUM}"
|
||
|
|
|
||
|
|
# load the kernel master key
|
||
|
|
info "Loading the kernel master key"
|
||
|
|
keyctl add "${MASTERKEYTYPE}" "kmk-${MASTERKEYTYPE}" "${KEYBLOB}" @u >/dev/null || {
|
||
|
|
info "masterkey: failed to load the kernel master key: kmk-${MASTERKEYTYPE}";
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
load_masterkey
|