144 lines
3.1 KiB
Bash
Executable File
144 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2013, Google Inc.
|
|
#
|
|
# Simple Verified Boot Test Script
|
|
#
|
|
# SPDX-License-Identifier: GPL-2.0+
|
|
|
|
set -e
|
|
|
|
# Run U-Boot and report the result
|
|
# Args:
|
|
# $1: Test message
|
|
run_uboot() {
|
|
echo -n "Test Verified Boot Run: $1: "
|
|
${uboot} -d sandbox-u-boot.dtb >${tmp} -c '
|
|
sb load host 0 100 test.fit;
|
|
fdt addr 100;
|
|
bootm 100;
|
|
reset'
|
|
if ! grep -q "$2" ${tmp}; then
|
|
echo
|
|
echo "Verified boot key check failed, output follows:"
|
|
cat ${tmp}
|
|
false
|
|
else
|
|
echo "OK"
|
|
fi
|
|
}
|
|
|
|
echo "Simple Verified Boot Test"
|
|
echo "========================="
|
|
echo
|
|
echo "Please see doc/uImage.FIT/verified-boot.txt for more information"
|
|
echo
|
|
|
|
err=0
|
|
tmp=/tmp/vboot_test.$$
|
|
|
|
dir=$(dirname $0)
|
|
|
|
if [ -z ${O} ]; then
|
|
O=.
|
|
fi
|
|
O=$(readlink -f ${O})
|
|
|
|
dtc="-I dts -O dtb -p 2000"
|
|
uboot="${O}/u-boot"
|
|
mkimage="${O}/tools/mkimage"
|
|
fit_check_sign="${O}/tools/fit_check_sign"
|
|
keys="${dir}/dev-keys"
|
|
echo ${mkimage} -D "${dtc}"
|
|
|
|
echo "Build keys"
|
|
mkdir -p ${keys}
|
|
|
|
# Create an RSA key pair
|
|
openssl genrsa -F4 -out ${keys}/dev.key 2048 2>/dev/null
|
|
|
|
# Create a certificate containing the public key
|
|
openssl req -batch -new -x509 -key ${keys}/dev.key -out ${keys}/dev.crt
|
|
|
|
pushd ${dir} >/dev/null
|
|
|
|
function do_test {
|
|
echo do $sha test
|
|
# Compile our device tree files for kernel and U-Boot
|
|
dtc -p 0x1000 sandbox-kernel.dts -O dtb -o sandbox-kernel.dtb
|
|
dtc -p 0x1000 sandbox-u-boot.dts -O dtb -o sandbox-u-boot.dtb
|
|
|
|
# Create a number kernel image with zeroes
|
|
head -c 5000 /dev/zero >test-kernel.bin
|
|
|
|
# Build the FIT, but don't sign anything yet
|
|
echo Build FIT with signed images
|
|
${mkimage} -D "${dtc}" -f sign-images-$sha.its test.fit >${tmp}
|
|
|
|
run_uboot "unsigned signatures:" "dev-"
|
|
|
|
# Sign images with our dev keys
|
|
echo Sign images
|
|
${mkimage} -D "${dtc}" -F -k dev-keys -K sandbox-u-boot.dtb \
|
|
-r test.fit >${tmp}
|
|
|
|
run_uboot "signed images" "dev+"
|
|
|
|
|
|
# Create a fresh .dtb without the public keys
|
|
dtc -p 0x1000 sandbox-u-boot.dts -O dtb -o sandbox-u-boot.dtb
|
|
|
|
echo Build FIT with signed configuration
|
|
${mkimage} -D "${dtc}" -f sign-configs-$sha.its test.fit >${tmp}
|
|
|
|
run_uboot "unsigned config" $sha"+ OK"
|
|
|
|
# Sign images with our dev keys
|
|
echo Sign images
|
|
${mkimage} -D "${dtc}" -F -k dev-keys -K sandbox-u-boot.dtb \
|
|
-r test.fit >${tmp}
|
|
|
|
run_uboot "signed config" "dev+"
|
|
|
|
echo check signed config on the host
|
|
if ! ${fit_check_sign} -f test.fit -k sandbox-u-boot.dtb >${tmp}; then
|
|
echo
|
|
echo "Verified boot key check on host failed, output follows:"
|
|
cat ${tmp}
|
|
false
|
|
else
|
|
if ! grep -q "dev+" ${tmp}; then
|
|
echo
|
|
echo "Verified boot key check failed, output follows:"
|
|
cat ${tmp}
|
|
false
|
|
else
|
|
echo "OK"
|
|
fi
|
|
fi
|
|
|
|
run_uboot "signed config" "dev+"
|
|
|
|
# Increment the first byte of the signature, which should cause failure
|
|
sig=$(fdtget -t bx test.fit /configurations/conf@1/signature@1 value)
|
|
newbyte=$(printf %x $((0x${sig:0:2} + 1)))
|
|
sig="${newbyte} ${sig:2}"
|
|
fdtput -t bx test.fit /configurations/conf@1/signature@1 value ${sig}
|
|
|
|
run_uboot "signed config with bad hash" "Bad Data Hash"
|
|
}
|
|
|
|
sha=sha1
|
|
do_test
|
|
sha=sha256
|
|
do_test
|
|
|
|
popd >/dev/null
|
|
|
|
echo
|
|
if ${ok}; then
|
|
echo "Test passed"
|
|
else
|
|
echo "Test failed"
|
|
fi
|