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|
#!/bin/bash -eux
# Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
me=${0##*/}
TMP="$me.tmp"
# Work in scratch directory
cd "$OUTDIR"
DEVKEYS=${SRCDIR}/tests/devkeys
echo "hi there" > ${TMP}.config.txt
echo "hello boys" > ${TMP}.config2.txt
dd if=/dev/urandom bs=512 count=1 of=${TMP}.bootloader.bin
dd if=/dev/urandom bs=512 count=1 of=${TMP}.bootloader2.bin
dd if=/dev/urandom bs=1M count=16 of=${TMP}.kern_partition
# default padding
padding=49152
try_arch () {
local arch=$1
echo -n "${arch}: 1 " 1>&3
# pack it up the old way
${FUTILITY} --debug vbutil_kernel \
--pack ${TMP}.blob1.${arch} \
--keyblock ${DEVKEYS}/recovery_kernel.keyblock \
--signprivate ${DEVKEYS}/recovery_kernel_data_key.vbprivk \
--version 1 \
--config ${TMP}.config.txt \
--bootloader ${TMP}.bootloader.bin \
--vmlinuz ${SCRIPT_DIR}/futility/data/vmlinuz-${arch}.bin \
--arch ${arch} \
--pad ${padding} \
--kloadaddr 0x11000
# verify the old way
${FUTILITY} vbutil_kernel --verify ${TMP}.blob1.${arch} \
--pad ${padding} \
--signpubkey ${DEVKEYS}/recovery_key.vbpubk > ${TMP}.verify1
# pack it up the new way
${FUTILITY} --debug sign \
--keyblock ${DEVKEYS}/recovery_kernel.keyblock \
--signprivate ${DEVKEYS}/recovery_kernel_data_key.vbprivk \
--version 1 \
--config ${TMP}.config.txt \
--bootloader ${TMP}.bootloader.bin \
--vmlinuz ${SCRIPT_DIR}/futility/data/vmlinuz-${arch}.bin \
--arch ${arch} \
--pad ${padding} \
--kloadaddr 0x11000 \
--outfile ${TMP}.blob2.${arch}
${FUTILITY} vbutil_kernel --verify ${TMP}.blob2.${arch} \
--pad ${padding} \
--signpubkey ${DEVKEYS}/recovery_key.vbpubk > ${TMP}.verify2
# they should be identical
cmp ${TMP}.blob1.${arch} ${TMP}.blob2.${arch}
diff ${TMP}.verify1 ${TMP}.verify2
echo -n "2 " 1>&3
# repack it the old way
${FUTILITY} --debug vbutil_kernel \
--repack ${TMP}.blob3.${arch} \
--oldblob ${TMP}.blob1.${arch} \
--signprivate ${DEVKEYS}/kernel_data_key.vbprivk \
--keyblock ${DEVKEYS}/kernel.keyblock \
--version 2 \
--pad ${padding} \
--config ${TMP}.config2.txt \
--bootloader ${TMP}.bootloader2.bin
# verify the old way
${FUTILITY} vbutil_kernel --verify ${TMP}.blob3.${arch} \
--pad ${padding} \
--signpubkey ${DEVKEYS}/kernel_subkey.vbpubk > ${TMP}.verify3
# repack it the new way
${FUTILITY} --debug sign \
--signprivate ${DEVKEYS}/kernel_data_key.vbprivk \
--keyblock ${DEVKEYS}/kernel.keyblock \
--version 2 \
--pad ${padding} \
--config ${TMP}.config2.txt \
--bootloader ${TMP}.bootloader2.bin \
${TMP}.blob2.${arch} \
${TMP}.blob4.${arch}
${FUTILITY} vbutil_kernel --verify ${TMP}.blob4.${arch} \
--pad ${padding} \
--signpubkey ${DEVKEYS}/kernel_subkey.vbpubk > ${TMP}.verify4
# they should be identical
cmp ${TMP}.blob3.${arch} ${TMP}.blob4.${arch}
diff ${TMP}.verify3 ${TMP}.verify4
echo -n "3 " 1>&3
# repack it the new way, in-place
cp ${TMP}.blob2.${arch} ${TMP}.blob5.${arch}
${FUTILITY} --debug sign \
--signprivate ${DEVKEYS}/kernel_data_key.vbprivk \
--keyblock ${DEVKEYS}/kernel.keyblock \
--version 2 \
--pad ${padding} \
--config ${TMP}.config2.txt \
--bootloader ${TMP}.bootloader2.bin \
${TMP}.blob5.${arch}
${FUTILITY} vbutil_kernel --verify ${TMP}.blob5.${arch} \
--pad ${padding} \
--signpubkey ${DEVKEYS}/kernel_subkey.vbpubk > ${TMP}.verify5
# they should be identical
cmp ${TMP}.blob3.${arch} ${TMP}.blob5.${arch}
diff ${TMP}.verify3 ${TMP}.verify5
# and now just the vblocks...
echo -n "4 " 1>&3
# pack the old way
${FUTILITY} vbutil_kernel \
--pack ${TMP}.blob1.${arch}.vb1 \
--vblockonly \
--keyblock ${DEVKEYS}/recovery_kernel.keyblock \
--signprivate ${DEVKEYS}/recovery_kernel_data_key.vbprivk \
--version 1 \
--config ${TMP}.config.txt \
--bootloader ${TMP}.bootloader.bin \
--vmlinuz ${SCRIPT_DIR}/futility/data/vmlinuz-${arch}.bin \
--arch ${arch} \
--pad ${padding} \
--kloadaddr 0x11000
# compare this new vblock with the one from the full pack
dd bs=${padding} count=1 if=${TMP}.blob1.${arch} of=${TMP}.blob1.${arch}.vb0
cmp ${TMP}.blob1.${arch}.vb0 ${TMP}.blob1.${arch}.vb1
# pack the new way
${FUTILITY} --debug sign \
--keyblock ${DEVKEYS}/recovery_kernel.keyblock \
--signprivate ${DEVKEYS}/recovery_kernel_data_key.vbprivk \
--version 1 \
--config ${TMP}.config.txt \
--bootloader ${TMP}.bootloader.bin \
--vmlinuz ${SCRIPT_DIR}/futility/data/vmlinuz-${arch}.bin \
--arch ${arch} \
--pad ${padding} \
--kloadaddr 0x11000 \
--vblockonly \
${TMP}.blob2.${arch}.vb1
# compare this new vblock with the one from the full pack
dd bs=${padding} count=1 if=${TMP}.blob2.${arch} of=${TMP}.blob2.${arch}.vb0
cmp ${TMP}.blob2.${arch}.vb0 ${TMP}.blob2.${arch}.vb1
echo -n "5 " 1>&3
# now repack the old way, again emitting just the vblock
${FUTILITY} vbutil_kernel \
--repack ${TMP}.blob3.${arch}.vb1 \
--vblockonly \
--oldblob ${TMP}.blob1.${arch} \
--signprivate ${DEVKEYS}/kernel_data_key.vbprivk \
--keyblock ${DEVKEYS}/kernel.keyblock \
--version 2 \
--pad ${padding} \
--config ${TMP}.config2.txt \
--bootloader ${TMP}.bootloader2.bin
# compare the full repacked vblock with the new repacked vblock
dd bs=${padding} count=1 if=${TMP}.blob3.${arch} of=${TMP}.blob3.${arch}.vb0
cmp ${TMP}.blob3.${arch}.vb0 ${TMP}.blob3.${arch}.vb1
# extract just the kernel blob
dd bs=${padding} skip=1 if=${TMP}.blob3.${arch} of=${TMP}.blob3.${arch}.kb0
# and verify it using the new vblock (no way to do that with vbutil_kernel)
${FUTILITY} --debug verify \
--pad ${padding} \
--publickey ${DEVKEYS}/kernel_subkey.vbpubk \
--fv ${TMP}.blob3.${arch}.kb0 \
${TMP}.blob3.${arch}.vb1 > ${TMP}.verify3v
# repack the new way
${FUTILITY} --debug sign \
--signprivate ${DEVKEYS}/kernel_data_key.vbprivk \
--keyblock ${DEVKEYS}/kernel.keyblock \
--version 2 \
--config ${TMP}.config2.txt \
--bootloader ${TMP}.bootloader2.bin \
--pad ${padding} \
--vblockonly \
${TMP}.blob2.${arch} \
${TMP}.blob4.${arch}.vb1 \
# compare the full repacked vblock with the new repacked vblock
dd bs=${padding} count=1 if=${TMP}.blob4.${arch} of=${TMP}.blob4.${arch}.vb0
cmp ${TMP}.blob4.${arch}.vb0 ${TMP}.blob4.${arch}.vb1
# extract just the kernel blob
dd bs=${padding} skip=1 if=${TMP}.blob4.${arch} of=${TMP}.blob4.${arch}.kb0
# and verify it using the new vblock (no way to do that with vbutil_kernel)
${FUTILITY} --debug verify \
--pad ${padding} \
--publickey ${DEVKEYS}/kernel_subkey.vbpubk \
--fv ${TMP}.blob4.${arch}.kb0 \
${TMP}.blob4.${arch}.vb1 > ${TMP}.verify4v
echo -n "6 " 1>&3
# Now lets repack some kernel partitions, not just blobs.
cp ${TMP}.kern_partition ${TMP}.part1.${arch}
dd if=${TMP}.blob1.${arch} of=${TMP}.part1.${arch} conv=notrunc
# Make sure the partitions verify
${FUTILITY} vbutil_kernel --verify ${TMP}.part1.${arch} \
--pad ${padding} \
--signpubkey ${DEVKEYS}/recovery_key.vbpubk > ${TMP}.verify6
# The partition should verify the same way as the blob
diff ${TMP}.verify1 ${TMP}.verify6
# repack it the old way
${FUTILITY} --debug vbutil_kernel \
--repack ${TMP}.part6.${arch} \
--oldblob ${TMP}.part1.${arch} \
--signprivate ${DEVKEYS}/kernel_data_key.vbprivk \
--keyblock ${DEVKEYS}/kernel.keyblock \
--version 2 \
--pad ${padding} \
--config ${TMP}.config2.txt \
--bootloader ${TMP}.bootloader2.bin
# verify the old way
${FUTILITY} vbutil_kernel --verify ${TMP}.part6.${arch} \
--pad ${padding} \
--signpubkey ${DEVKEYS}/kernel_subkey.vbpubk > ${TMP}.verify6.old
# this "partition" should actually be the same as the old-way blob
cmp ${TMP}.blob3.${arch} ${TMP}.part6.${arch}
# repack it the new way, in-place
cp ${TMP}.part1.${arch} ${TMP}.part6.${arch}.new1
${FUTILITY} --debug sign \
--signprivate ${DEVKEYS}/kernel_data_key.vbprivk \
--keyblock ${DEVKEYS}/kernel.keyblock \
--version 2 \
--pad ${padding} \
--config ${TMP}.config2.txt \
--bootloader ${TMP}.bootloader2.bin \
${TMP}.part6.${arch}.new1
${FUTILITY} vbutil_kernel --verify ${TMP}.part6.${arch}.new1 \
--pad ${padding} \
--signpubkey ${DEVKEYS}/kernel_subkey.vbpubk > ${TMP}.verify6.new1
# The verification should be indentical
diff ${TMP}.verify6.old ${TMP}.verify6.new1
# But the content should only match up to the size of the kernel blob, since
# we're modifying an entire partition in-place.
blobsize=$(stat -c '%s' ${TMP}.part6.${arch})
cmp -n ${blobsize} ${TMP}.part6.${arch} ${TMP}.part6.${arch}.new1
# The rest of the partition should be unchanged.
cmp -i ${blobsize} ${TMP}.part1.${arch} ${TMP}.part6.${arch}.new1
# repack it the new way, from input to output
cp ${TMP}.part1.${arch} ${TMP}.part1.${arch}.in
${FUTILITY} --debug sign \
--signprivate ${DEVKEYS}/kernel_data_key.vbprivk \
--keyblock ${DEVKEYS}/kernel.keyblock \
--version 2 \
--pad ${padding} \
--config ${TMP}.config2.txt \
--bootloader ${TMP}.bootloader2.bin \
${TMP}.part1.${arch}.in \
${TMP}.part6.${arch}.new2
${FUTILITY} vbutil_kernel --verify ${TMP}.part6.${arch}.new2 \
--pad ${padding} \
--signpubkey ${DEVKEYS}/kernel_subkey.vbpubk > ${TMP}.verify6.new2
# The input file should not have changed (just being sure).
cmp ${TMP}.part1.${arch} ${TMP}.part1.${arch}.in
# The verification should be indentical
diff ${TMP}.verify6.old ${TMP}.verify6.new2
# And creating a new output file should only emit a blob's worth
cmp ${TMP}.part6.${arch} ${TMP}.part6.${arch}.new2
# Note: We specifically do not test repacking with a different --kloadaddr,
# because the old way has a bug and does not update params->cmd_line_ptr to
# point at the new on-disk location. Apparently (and not surprisingly), no
# one has ever done that.
}
try_arch amd64
try_arch arm
# cleanup
rm -rf ${TMP}*
exit 0
|
