blob: c3cfadeb1b2f5b8d3e5e85481742bd70dcb0a6f2 [file] [log] [blame]
Simon Glass041bca52013-06-13 15:10:11 -07001#!/bin/sh
2#
3# Copyright (c) 2013, Google Inc.
4#
5# Simple Verified Boot Test Script
6#
7# This program is free software; you can redistribute it and/or
8# modify it under the terms of the GNU General Public License as
9# published by the Free Software Foundation; either version 2 of
10# the License, or (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program; if not, write to the Free Software
19# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20# MA 02111-1307 USA
21
22set -e
23
24# Run U-Boot and report the result
25# Args:
26# $1: Test message
27run_uboot() {
28 echo -n "Test Verified Boot Run: $1: "
29 ${uboot} -d sandbox-u-boot.dtb >${tmp} -c '
30sb load host 0 100 test.fit;
31fdt addr 100;
32bootm 100;
33reset'
34 if ! grep -q "$2" ${tmp}; then
35 echo
36 echo "Verified boot key check failed, output follows:"
37 cat ${tmp}
38 false
39 else
40 echo "OK"
41 fi
42}
43
44echo "Simple Verified Boot Test"
45echo "========================="
46echo
47echo "Please see doc/uImage.FIT/verified-boot.txt for more information"
48echo
49
50err=0
51tmp=/tmp/vboot_test.$$
52
53dir=$(dirname $0)
54
55if [ -z ${O} ]; then
56 O=.
57fi
58O=$(readlink -f ${O})
59
60dtc="-I dts -O dtb -p 2000"
61uboot="${O}/u-boot"
62mkimage="${O}/tools/mkimage"
63keys="${dir}/dev-keys"
64echo ${mkimage} -D "${dtc}"
65
66echo "Build keys"
67mkdir -p ${keys}
68
69# Create an RSA key pair
70openssl genrsa -F4 -out ${keys}/dev.key 2048 2>/dev/null
71
72# Create a certificate containing the public key
73openssl req -batch -new -x509 -key ${keys}/dev.key -out ${keys}/dev.crt
74
75pushd ${dir} >/dev/null
76
77# Compile our device tree files for kernel and U-Boot (CONFIG_OF_CONTROL)
78dtc -p 0x1000 sandbox-kernel.dts -O dtb -o sandbox-kernel.dtb
79dtc -p 0x1000 sandbox-u-boot.dts -O dtb -o sandbox-u-boot.dtb
80
81# Create a number kernel image with zeroes
82head -c 5000 /dev/zero >test-kernel.bin
83
84# Build the FIT, but don't sign anything yet
85echo Build FIT with signed images
86${mkimage} -D "${dtc}" -f sign-images.its test.fit >${tmp}
87
88run_uboot "unsigned signatures:" "dev-"
89
90# Sign images with our dev keys
91echo Sign images
92${mkimage} -D "${dtc}" -F -k dev-keys -K sandbox-u-boot.dtb -r test.fit >${tmp}
93
94run_uboot "signed images" "dev+"
95
96
97# Create a fresh .dtb without the public keys
98dtc -p 0x1000 sandbox-u-boot.dts -O dtb -o sandbox-u-boot.dtb
99
100echo Build FIT with signed configuration
101${mkimage} -D "${dtc}" -f sign-configs.its test.fit >${tmp}
102
103run_uboot "unsigned config" "sha1+ OK"
104
105# Sign images with our dev keys
106echo Sign images
107${mkimage} -D "${dtc}" -F -k dev-keys -K sandbox-u-boot.dtb -r test.fit >${tmp}
108
109run_uboot "signed config" "dev+"
110
111# Increment the first byte of the signature, which should cause failure
112sig=$(fdtget -t bx test.fit /configurations/conf@1/signature@1 value)
113newbyte=$(printf %x $((0x${sig:0:2} + 1)))
114sig="${newbyte} ${sig:2}"
115fdtput -t bx test.fit /configurations/conf@1/signature@1 value ${sig}
116
117run_uboot "signed config with bad hash" "Bad Data Hash"
118
119popd >/dev/null
120
121echo
122if ${ok}; then
123 echo "Test passed"
124else
125 echo "Test failed"
126fi