#!/bin/bash

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

ROOT=${abs_top_builddir:-$(pwd)/..}
TESTDIR=${abs_top_testdir:-$(dirname "$0")}

VTPM_NAME="vtpm-test-tpm2-wrongorder"
SWTPM_DEV_NAME="/dev/${VTPM_NAME}"
TPM_PATH="$(mktemp -d)" || exit 1
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_quiet -9 "$pid"
	fi
	rm -rf "$TPM_PATH"
}

trap "cleanup" EXIT

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

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

TPM_PATH=$TPM_PATH run_swtpm "${SWTPM_INTERFACE}" --tpm2

display_processes_by_name "$SWTPM"

if ! kill_quiet -0 "${SWTPM_PID}"; then
	echo "Error: ${SWTPM_INTERFACE} TPM did not start."
	exit 1
fi

# Get the established bit before the TPM has been initialized
# This should not work

if [ "${SWTPM_INTERFACE}" != "cuse" ]; then
	if ! run_swtpm_ioctl "${SWTPM_INTERFACE}" --stop; then
		echo "Error: Could not stop the ${SWTPM_INTERFACE} TPM."
		exit 1
	fi
fi

if ERR="$(run_swtpm_ioctl "${SWTPM_INTERFACE}" -e 2>&1)"; then
	echo "Error: Could get established bit from ${SWTPM_INTERFACE} TPM before init."
	exit 1
fi
exp="TPM result from PTM_GET_TPMESTABLISHED: 0xa"
if [ "$ERR" != "$exp" ]; then
	echo "Error: Unexpected error message"
	echo "Received: $ERR"
	echo "Expected: $exp"
	exit 1
fi

if ! kill_quiet -0 "${SWTPM_PID}"; then
	echo "Error: ${SWTPM_INTERFACE} TPM must have crashed."
	exit 1
fi

# Read PCR 17
#                                                       length         CC            count       hashalg         sz
RES=$(swtpm_cmd_tx "${SWTPM_INTERFACE}" '\x80\x01\x00\x00\x00\x14\x00\x00\x01\x7e\x00\x00\x00\x01\x00\x0b\x03\x00\x00\x02')
exp=' 80 01 00 00 00 0a 00 00 01 01'
if [ "$RES" != "$exp" ]; then
	echo "Error: Did not get expected result from TPM_PCRRead(17)"
	echo "expected: $exp"
	echo "received: $RES"
	exit 1
fi

if ! kill_quiet -0 "${SWTPM_PID}"; then
	echo "Error: ${SWTPM_INTERFACE} TPM must have crashed."
	exit 1
fi

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

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

if ! run_swtpm_ioctl "${SWTPM_INTERFACE}" -s; then
	echo "Error: Could not shut down the ${SWTPM_INTERFACE} TPM."
	exit 1
fi

if wait_process_gone ${SWTPM_PID} 4; 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