heads/initrd/bin/cbfs-init
Thierry Laurion 8da5d5d723
Add dual support for real bash and busybox's bash(ash)
- modify bash to have it configured with -Os
2023-03-08 12:45:44 -05:00

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#!/bin/bash
set -e -o pipefail
. /etc/functions
TRACE "Under /bin/cbfs-init"
# Update initrd with CBFS files
if [ -z "$CONFIG_PCR" ]; then
CONFIG_PCR=7
fi
# Load individual files
cbfsfiles=`cbfs -t 50 -l 2>/dev/null | grep "^heads/initrd/"`
for cbfsname in `echo $cbfsfiles`; do
filename=${cbfsname:12}
if [ ! -z "$filename" ]; then
echo "Loading $filename from CBFS"
mkdir -p `dirname $filename` \
|| die "$filename: mkdir failed"
cbfs -t 50 -r $cbfsname > "$filename" \
|| die "$filename: cbfs file read failed"
if [ "$CONFIG_TPM" = "y" -o "$CONFIG_TPM2_TOOLS" = "y" ]; then
TMPFILE=/tmp/cbfs.$$
echo "$filename" > $TMPFILE
cat $filename >> $TMPFILE
tpmr extend -ix "$CONFIG_PCR" -if $TMPFILE \
|| die "$filename: tpm extend failed"
fi
fi
done
# TODO: copy CBFS file named "heads/initrd.tgz" to /tmp, measure and extract