Define a structure to use for returning the PTM_GET_CAPABILITY result that
resembles the layout of all the commands' structures. Since only 17bits for
capabilities are currenlty defined and they are returned in big endian
format as part of a 64bit number, this change can be done without any side
effects. The upper 32bit of this number now become the tpm_result, which
will always be 0. The lower 32bits are the possible capability flags, of
which the 17 are used.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Implement CMD_LOCK_STORAGE / PTM_LOCK_STORAGE for a user to be able to
lock the storage of the storage backend (if supported) after its lock
has been released for example when the 'savestate' blob was received
while the TPM state was migrated.
Also adjust test case and extend man pages.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
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>
Update the description in the man page to reflect ioctl's and
control channel commands.
Update to the latest supported commands.
Fix a few text locations on the way.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
