swtpm: add CMD_SHUTDOWN to control channel

[swtpm.git] / tests / test_ctrlchannel

#!/bin/bash

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

DIR=$(dirname "$0")
ROOT=${DIR}/..
SWTPM=swtpm
SWTPM_EXE=$ROOT/src/swtpm/$SWTPM
TPMDIR=`mktemp -d`
PID_FILE=$TPMDIR/${SWTPM}.pid
SOCK_PATH=$TPMDIR/sock
CMD_PATH=$TPMDIR/cmd
RESP_PATH=$TPMDIR/resp

trap "cleanup" SIGTERM EXIT

function cleanup()
{
	rm -rf $TPMDIR
	if [ -n "$PID" ]; then
		kill -SIGTERM $PID 2>/dev/null
	fi
}

# Test 1: test the control channel

# use a pseudo terminal
exec 100<>/dev/ptmx
$SWTPM_EXE chardev --fd 100 --tpmstate dir=$TPMDIR --pid file=$PID_FILE --ctrl type=unixio,path=$SOCK_PATH &
sleep 0.5

if [ ! -r $PID_FILE ]; then
	echo "Error: Chardev TPM did not write pidfile."
	exit 1
fi

PID="$(cat $PID_FILE)"


# Get the capability bits: CMD_GET_CAPABILITY = 0x00 00 00 01
echo -en '\x00\x00\x00\x01' > $CMD_PATH
socat -x FILE:$CMD_PATH,rdonly UNIX-CONNECT:$SOCK_PATH 2>&1 | \
	sed -n '/^ /p' | \
	tail -n1 > $RESP_PATH
res="$(cat $RESP_PATH)"
exp=" 00 00 00 00 00 00 00 03"
if [ "$res" != "$exp" ]; then
	echo "Error: Unexpected response from CMD_GET_CAPABILITY:"
	echo "       actual  : $res"
	echo "       expected: $exp"
	exit 1
fi

# Send TPM_Init to the TPM: CMD_INIT = 0x00 00 00 02 + flags
echo -en '\x00\x00\x00\x02\x00\x00\x00\x00' > $CMD_PATH
socat -x FILE:$CMD_PATH,rdonly UNIX-CONNECT:$SOCK_PATH 2>&1 | \
	sed -n '/^ /p' | \
	tail -n1 > $RESP_PATH
res="$(cat $RESP_PATH)"
exp=" 00 00 00 00"
if [ "$res" != "$exp" ]; then
	echo "Error: Unexpected response from CMD_INIT:"
	echo "       actual  : $res"
	echo "       expected: $exp"
	exit 1
fi

# Send unknown command to the TPM
echo -en '\x00\x00\xff\xff' > $CMD_PATH
socat -x FILE:$CMD_PATH,rdonly UNIX-CONNECT:$SOCK_PATH 2>&1 | \
	sed -n '/^ /p' | \
	tail -n1 > $RESP_PATH
res="$(cat $RESP_PATH)"
exp=" 00 00 00 0a"
if [ "$res" != "$exp" ]; then
	echo "Error: Unexpected response from sending unsupported command:"
	echo "       actual  : $res"
	echo "       expected: $exp"
	exit 1
fi

# Send shutdown command to the TPM: CMD_SHUTDOWN = 00 00 00 03
echo -en '\x00\x00\x00\x03' > $CMD_PATH
socat -x FILE:$CMD_PATH,rdonly UNIX-CONNECT:$SOCK_PATH 2>&1 | \
	sed -n '/^ /p' | \
	tail -n1 > $RESP_PATH
res="$(cat $RESP_PATH)"
exp=" 00 00 00 00"
if [ "$res" != "$exp" ]; then
	echo "Error: Unexpected response from CMD_SHUTDOWN:"
	echo "       actual  : $res"
	echo "       expected: $exp"
	exit 1
fi

sleep 0.2
kill -0 $PID 2>/dev/null
if [ $? -eq 0 ]; then
	echo "Error: TPM should not be running anymore."
	exit 1
fi

if [ -f $PID_FILE ]; then
	echo "Error: TPM should have removed the PID file."
	exit 1
fi

echo "OK"

exit 0