ccf1cd57ca
- What I did Added support for secure upgrade. - How I did it During sonic_installer install, added secure upgrade image verification. HLD can be found in the following PR: sonic-net/SONiC#1024 - Why I did it Feature is used to allow image was not modified since built from vendor. During installation, image can be verified with a signature attached to it. - How I did it Feature includes image signing during build (in sonic buildimage repo) and verification during image install (in sonic-utilities). - How to verify it In order for image verification - image must be signed - need to provide signing key and certificate (paths in SECURE_UPGRADE_DEV_SIGNING_KEY and SECURE_UPGRADE_DEV_SIGNING_CERT in rules/config) during build , and during image install, need to enable secure boot flag in bios, and signing_certificate should be available in bios. - Feature dependencies In order for this feature to work smoothly, need to have secure boot feature implemented as well. The Secure boot feature will be merged in the near future.
75 lines
2.0 KiB
Bash
75 lines
2.0 KiB
Bash
#!/bin/sh
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# Copyright (C) 2013 Curt Brune <curt@cumulusnetworks.com>
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#
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# SPDX-License-Identifier: GPL-2.0
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##
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## Shell archive template
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##
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## Strings of the form %%VAR%% are replaced during construction.
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##
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echo -n "Verifying image checksum ..."
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payload_image_size=%%PAYLOAD_IMAGE_SIZE%%
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sha1=$(sed -e '1,/^exit_marker$/d' "$0" | head -c $payload_image_size | sha1sum | awk '{ print $1 }')
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payload_sha1=%%IMAGE_SHA1%%
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if [ "$sha1" != "$payload_sha1" ] ; then
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echo
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echo "ERROR: Unable to verify archive checksum"
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echo "Expected: $payload_sha1"
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echo "Found : $sha1"
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exit 1
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fi
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echo " OK."
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image_size_in_kb=$((($(sed -e '1,/^exit_marker$/d' "$0" | tar --to-stdout -xf - | wc -c) + 1023 ) / 1024))
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# Untar and launch install script in a tmpfs
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cur_wd=$(pwd)
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export cur_wd
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archive_path=$(realpath "$0")
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tmp_dir=$(mktemp -d)
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if [ "$(id -u)" = "0" ] ; then
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mount -t tmpfs tmpfs-installer $tmp_dir || exit 1
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mount_size_in_kb=$(df $tmp_dir | tail -1 | tr -s ' ' | cut -d' ' -f4)
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#checking extra 100KB space in tmp_dir, after image extraction
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padding=102400
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if [ "$mount_size_in_kb" -le "$((image_size_in_kb + padding))" ]; then
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image_size_in_mb=$(((image_size_in_kb + 1023) / 1024))
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#Adding extra 32MB free space for image extraction.
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mount_size_in_mb=$((((image_size_in_mb + 31) / 32) * 32))
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mount -o remount,size="${mount_size_in_mb}M" -t tmpfs tmpfs-installer $tmp_dir || exit 1
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fi
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fi
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cd $tmp_dir
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echo -n "Preparing image archive ..."
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sed -e '1,/^exit_marker$/d' $archive_path | head -c $payload_image_size | tar xf - || exit 1
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echo " OK."
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cd $cur_wd
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if [ -n "$extract" ] ; then
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# stop here
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echo "Image extracted to: $tmp_dir"
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if [ "$(id -u)" = "0" ] && [ ! -d "$extract" ] ; then
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echo "To un-mount the tmpfs when finished type: umount $tmp_dir"
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fi
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exit 0
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fi
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$tmp_dir/installer/install.sh
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rc="$?"
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# clean up
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if [ "$(id -u)" = "0" ] ; then
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umount $tmp_dir
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fi
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rm -rf $tmp_dir
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exit $rc
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exit_marker
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