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