TPMLIB_GetInfo(3)                                            TPMLIB_GetInfo(3)


NAME
       TPMLIB_GetInfo    - 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.

SEE ALSO

libtpms                           2023-05-07                 TPMLIB_GetInfo(3)