3 # Copyright (c) 2013, Google Inc.
5 # Simple Verified Boot Test Script
7 # SPDX-License-Identifier: GPL-2.0+
11 # Run U-Boot and report the result
15 echo -n "Test Verified Boot Run: $1: "
16 ${uboot} -d sandbox-u-boot.dtb >${tmp} -c '
17 sb load hostfs - 100 test.fit;
21 if ! grep -q "$2" ${tmp}; then
23 echo "Verified boot key check failed, output follows:"
31 echo "Simple Verified Boot Test"
32 echo "========================="
34 echo "Please see doc/uImage.FIT/verified-boot.txt for more information"
38 tmp=/tmp/vboot_test.$$
47 dtc="-I dts -O dtb -p 2000"
49 mkimage="${O}/tools/mkimage"
50 fit_check_sign="${O}/tools/fit_check_sign"
51 keys="${dir}/dev-keys"
52 echo ${mkimage} -D "${dtc}"
59 if [ -z "${PUBLIC_EXPONENT}" ]; then
63 # Create an RSA key pair
64 openssl genpkey -algorithm RSA -out ${keys}/dev.key \
65 -pkeyopt rsa_keygen_bits:2048 \
66 -pkeyopt rsa_keygen_pubexp:${PUBLIC_EXPONENT} 2>/dev/null
68 # Create a certificate containing the public key
69 openssl req -batch -new -x509 -key ${keys}/dev.key -out ${keys}/dev.crt
71 pushd ${dir} >/dev/null
75 # Compile our device tree files for kernel and U-Boot
76 dtc -p 0x1000 sandbox-kernel.dts -O dtb -o sandbox-kernel.dtb
77 dtc -p 0x1000 sandbox-u-boot.dts -O dtb -o sandbox-u-boot.dtb
79 # Create a number kernel image with zeroes
80 head -c 5000 /dev/zero >test-kernel.bin
82 # Build the FIT, but don't sign anything yet
83 echo Build FIT with signed images
84 ${mkimage} -D "${dtc}" -f sign-images-$sha.its test.fit >${tmp}
86 run_uboot "unsigned signatures:" "dev-"
88 # Sign images with our dev keys
90 ${mkimage} -D "${dtc}" -F -k dev-keys -K sandbox-u-boot.dtb \
93 run_uboot "signed images" "dev+"
96 # Create a fresh .dtb without the public keys
97 dtc -p 0x1000 sandbox-u-boot.dts -O dtb -o sandbox-u-boot.dtb
99 echo Build FIT with signed configuration
100 ${mkimage} -D "${dtc}" -f sign-configs-$sha.its test.fit >${tmp}
102 run_uboot "unsigned config" $sha"+ OK"
104 # Sign images with our dev keys
106 ${mkimage} -D "${dtc}" -F -k dev-keys -K sandbox-u-boot.dtb \
109 run_uboot "signed config" "dev+"
111 echo check signed config on the host
112 if ! ${fit_check_sign} -f test.fit -k sandbox-u-boot.dtb >${tmp}; then
114 echo "Verified boot key check on host failed, output follows:"
118 if ! grep -q "dev+" ${tmp}; then
120 echo "Verified boot key check failed, output follows:"
128 run_uboot "signed config" "dev+"
130 # Increment the first byte of the signature, which should cause failure
131 sig=$(fdtget -t bx test.fit /configurations/conf@1/signature@1 value)
132 newbyte=$(printf %x $((0x${sig:0:2} + 1)))
133 sig="${newbyte} ${sig:2}"
134 fdtput -t bx test.fit /configurations/conf@1/signature@1 value ${sig}
136 run_uboot "signed config with bad hash" "Bad Data Hash"