mirror of
https://github.com/stefanberger/swtpm.git
synced 2026-01-12 00:43:41 +00:00
688c8e2400
Implement a command for setting and querying the buffer size the TPM implementation (libtpms) is using. The setting of the buffersize allows to reduce the size of the buffer to a size that the interface can support so that these two sizes match and the TPM will not produce larger responses than what the interface can support. Extend swtpm_ioctl with an option to set the buffersize. Adapt the existing tests to reflect the newly supported command. Implement a new test for getting/setting of the buffer size. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
98 lines
2.1 KiB
Bash
Executable File
98 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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# For the license, see the LICENSE file in the root directory.
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#set -x
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DIR=$(dirname "$0")
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ROOT=${DIR}/..
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VTPM_NAME="vtpm-test-setbuffersize"
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SWTPM_DEV_NAME="/dev/${VTPM_NAME}"
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export TPM_PATH=$(mktemp -d)
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STATE_FILE=$TPM_PATH/tpm-00.permall
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VOLATILE_STATE_FILE=$TPM_PATH/tpm-00.volatilestate
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SWTPM_CMD_UNIX_PATH=${TPM_PATH}/unix-cmd.sock
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SWTPM_CTRL_UNIX_PATH=${TPM_PATH}/unix-ctrl.sock
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SWTPM_INTERFACE=${SWTPM_INTERFACE:-cuse}
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function cleanup()
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{
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pid=${SWTPM_PID}
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if [ -n "$pid" ]; then
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kill -9 $pid
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fi
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rm -rf $TPM_PATH
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}
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trap "cleanup" EXIT
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[ "${SWTPM_INTERFACE}" == cuse ] && source ${DIR}/test_cuse
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source ${DIR}/common
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rm -f $STATE_FILE $VOLATILE_STATE_FILE 2>/dev/null
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run_swtpm ${SWTPM_INTERFACE}
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kill -0 ${SWTPM_PID}
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if [ $? -ne 0 ]; then
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echo "Error: ${SWTPM_INTERFACE} TPM did not start."
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exit 1
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fi
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# Check the buffer size
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run_swtpm_ioctl ${SWTPM_INTERFACE} -b 0
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if [ $? -ne 0 ]; then
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echo "Error: Could not get the buffersize of the ${SWTPM_INTERFACE} TPM."
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exit 1
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fi
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# set the buffer size -- it's not going to change but command must not fail
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run_swtpm_ioctl ${SWTPM_INTERFACE} -b 4000
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if [ $? -ne 0 ]; then
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echo "Error: Could not set the buffersize of the ${SWTPM_INTERFACE} TPM."
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exit 1
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fi
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# Init the TPM
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run_swtpm_ioctl ${SWTPM_INTERFACE} -i
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if [ $? -ne 0 ]; then
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echo "Error: Could not initialize the ${SWTPM_INTERFACE} TPM."
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exit 1
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fi
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# Set the buffer size -- should fail
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run_swtpm_ioctl ${SWTPM_INTERFACE} -b 4096
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if [ $? -eq 0 ]; then
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echo "Error: Could set the buffersize while the ${SWTPM_INTERFACE} TPM is running."
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exit 1
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fi
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kill -0 ${SWTPM_PID} 2>/dev/null
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if [ $? -ne 0 ]; then
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echo "Error: ${SWTPM_INTERFACE} TPM not running anymore after INIT."
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exit 1
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fi
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run_swtpm_ioctl ${SWTPM_INTERFACE} -s
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if [ $? -ne 0 ]; then
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echo "Error: Could not shut down the ${SWTPM_INTERFACE} TPM."
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exit 1
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fi
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sleep 0.5
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kill -0 ${SWTPM_PID} 2>/dev/null
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if [ $? -eq 0 ]; then
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echo "Error: ${SWTPM_INTERFACE} TPM should not be running anymore."
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exit 1
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fi
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if [ ! -e $STATE_FILE ]; then
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echo "Error: TPM state file $STATE_FILE does not exist."
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exit 1
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fi
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echo "OK"
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exit 0
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