TPMLIB_GetInfo - Man Page
Get Information about the TPM implementation
Library
TPM library (libtpms, -ltpms)
Synopsis
#include <libtpms/tpm_library.h>
char *TPMLIB_GetInfo(TPMLIB_InfoFlags flags);
Description
The TPMLIB_GetInfo() function allows to query for TPM implementation specifics and get a JSON string in return. Which data is to be returned can be specified in the flags parameter that may be a logical 'or' concatenation of flags. If passed flags are not supported, nothing is returned . If a 0 is passed in, an empty JSON Object '{}' is returned.
The following flags are defined and return JSON objects as shown:
- TPMLIB_INFO_TPMSPECIFICATION
{"TPMSpecification":{"family":"1.2","level":2,"revision":116}}
- TPMLIB_INFO_TPMATTRIBUTES
{"TPMAttributes":{"manufacturer":"id:00001014","version":"id:00740001","model":"swtpm"}}
- TPMLIB_INFO_TPMFEATURES (since v0.8.0)
{"TPMFeatures":{"RSAKeySizes":[1024,2048,3072]}}
This JSON object may be extended in the future.
Return Value
This function returns a JSON string on success and a NULL pointer if a memory allocation failure occurred.
The caller must free() the returned string.