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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Prevent loading a kernel image via the kexec_load syscall when
# signatures are required. (Dependent on CONFIG_IMA_ARCH_POLICY.)
TEST="$0"
. ./kexec_common_lib.sh
# kexec requires root privileges
require_root_privileges
# get the kernel config
get_kconfig
kconfig_enabled "CONFIG_KEXEC=y" "kexec_load is enabled"
if [ $? -eq 0 ]; then
log_skip "kexec_load is not enabled"
fi
kconfig_enabled "CONFIG_IMA_APPRAISE=y" "IMA enabled"
ima_appraise=$?
kconfig_enabled "CONFIG_IMA_ARCH_POLICY=y" \
"IMA architecture specific policy enabled"
arch_policy=$?
get_secureboot_mode
secureboot=$?
# kexec_load should fail in secure boot mode and CONFIG_IMA_ARCH_POLICY enabled
kexec --load $KERNEL_IMAGE > /dev/null 2>&1
if [ $? -eq 0 ]; then
kexec --unload
if [ $secureboot -eq 1 ] && [ $arch_policy -eq 1 ]; then
log_fail "kexec_load succeeded"
elif [ $ima_appraise -eq 0 -o $arch_policy -eq 0 ]; then
log_info "Either IMA or the IMA arch policy is not enabled"
fi
log_pass "kexec_load succeeded"
else
if [ $secureboot -eq 1 ] && [ $arch_policy -eq 1 ] ; then
log_pass "kexec_load failed"
else
log_fail "kexec_load failed"
fi
fi
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