On 12/28/2022 5:48 PM, James Bottomley wrote:
The main thing you have to do is connect to the TPM not through the resource manager so the policy session survives multiple commands export TPM_DEVICE=/dev/tpm0
Just FYI, as James says, command line utilities interact with the resource manager. When I want to run command line programs through the resource manager, I use a proxy to keep the /dev/tpmrm0 session connected.
https://github.com/kgoldman/ibmtss/blob/master/utils/tpmproxy.c holds an open source proxy.