tests/_test_tpm2_init

#!/bin/bash

# For the license, see the LICENSE file in the root directory.
#set -x

DIR=$(dirname "$0")
ROOT=${DIR}/..
VTPM_NAME="vtpm-test-tpm2-init"
SWTPM_DEV_NAME="/dev/${VTPM_NAME}"
export TPM_PATH=$(mktemp -d)
STATE_FILE=$TPM_PATH/tpm2-00.permall
VOLATILE_STATE_FILE=$TPM_PATH/tpm2-00.volatilestate
SWTPM_INTERFACE=${SWTPM_INTERFACE:-cuse}
SWTPM_CMD_UNIX_PATH=${TPM_PATH}/unix-cmd.sock
SWTPM_CTRL_UNIX_PATH=${TPM_PATH}/unix-ctrl.sock

function cleanup()
{
	pid=${SWTPM_PID}
	if [ -n "$pid" ]; then
		kill -9 $pid
	fi
	rm -rf $TPM_PATH
}

trap "cleanup" EXIT

[ "${SWTPM_INTERFACE}" == "cuse" ] && source ${DIR}/test_cuse
source ${DIR}/common

rm -f $STATE_FILE $VOLATILE_STATE_FILE 2>/dev/null

run_swtpm ${SWTPM_INTERFACE} --tpm2

ps aux | grep $SWTPM | grep -v grep

kill -0 ${SWTPM_PID}
if [ $? -ne 0 ]; then
	echo "Error: ${SWTPM_INTERFACE} TPM did not start."
	exit 1
fi

# Init the TPM
run_swtpm_ioctl ${SWTPM_INTERFACE} -i
if [ $? -ne 0 ]; then
	echo "Error: Could not initialize the ${SWTPM_INTERFACE} TPM."
	exit 1
fi

kill -0 ${SWTPM_PID} 2>/dev/null
if [ $? -ne 0 ]; then
	echo "Error: ${SWTPM_INTERFACE} TPM not running anymore after INIT."
	exit 1
fi

# Init the TPM again but make its state file inaccessible; this only
# works if the TPM runs as non-rootchmod 000 "${STATE_FILE}"
if [ "$(id -u)" != "0" ]; then
	chmod 000 "${STATE_FILE}"
	run_swtpm_ioctl ${SWTPM_INTERFACE} -i
	if [ $? -eq 0 ]; then
		echo "Error: Unexpected initialization success of the ${SWTPM_INTERFACE} TPM."
		exit 1
	fi

	sleep 0.5

	kill -0 ${SWTPM_PID} 2>/dev/null
	if [ $? -ne 0 ]; then
		echo "Error: ${SWTPM_INTERFACE} TPM not running anymore after failed INIT."
		exit 1
	fi
	chmod 664 "${STATE_FILE}"

	# Init the TPM again; now with state file accessible again
	run_swtpm_ioctl ${SWTPM_INTERFACE} -i
	if [ $? -ne 0 ]; then
		echo "Error: Could not initialize the ${SWTPM_INTERFACE} TPM."
		exit 1
	fi

	sleep 0.5

	kill -0 ${SWTPM_PID} 2>/dev/null
	if [ $? -ne 0 ]; then
		echo "Error: ${SWTPM_INTERFACE} TPM not running anymore after INIT."
		exit 1
	fi
fi

# Shut down
run_swtpm_ioctl ${SWTPM_INTERFACE} -s
if [ $? -ne 0 ]; then
	echo "Error: Could not shut down the ${SWTPM_INTERFACE} TPM."
	exit 1
fi

sleep 0.5

kill -0 ${SWTPM_PID} 2>/dev/null
if [ $? -eq 0 ]; then
	echo "Error: ${SWTPM_INTERFACE} TPM should not be running anymore."
	exit 1
fi

if [ ! -e $STATE_FILE ]; then
	echo "Error: TPM state file $STATE_FILE does not exist."
	exit 1
fi

echo "OK"

exit 0