#!/bin/bash

# remove any prior TPM contents
rm -f NVChip h*.bin *.permall
if [ -x "${SWTPM}" ]; then
    ${SWTPM} socket --tpm2 --daemon              \
             --pid file=swtpm.pid                \
             --server type=tcp,port=2321         \
             --ctrl type=tcp,port=2322           \
             --flags not-need-init,startup-clear \
             --tpmstate dir=`pwd`
    cat swtpm.pid
else
    ${TPMSERVER} > /dev/null 2>&1  &
    pid=$!
    ##
    # This powers on the tpm and starts it
    # then we derive the RSA version of the storage seed and
    # store it permanently at handle 81000001 and flush the transient
    ##
    a=0
    while [ $a -lt 10 ]; do
        tsspowerup > /dev/null 2>&1
        if [ $? -eq 0 ]; then
            break;
        fi
        sleep 1
        a=$[$a+1]
    done
    if [ $a -eq 10 ]; then
        echo "Waited 10s for tpm_server to come up; exiting"
        exit 1
    fi

    ${TSSSTARTUP} || exit 1
    echo -n $pid
fi