TPM_RESULT tpmlib_start(struct libtpms_callbacks *cbs, uint32_t flags)
{
TPM_RESULT res;
if ((res = TPMLIB_RegisterCallbacks(cbs)) != TPM_SUCCESS) {
logprintf(STDERR_FILENO,
"Error: Could not register the callbacks.\n");
return res;
}
if ((res = TPMLIB_MainInit()) != TPM_SUCCESS) {
logprintf(STDERR_FILENO,
"Error: Could not initialize libtpms.\n");
return res;
}
if (flags & PTM_INIT_FLAG_DELETE_VOLATILE) {
uint32_t tpm_number = 0;
char *name = TPM_VOLATILESTATE_NAME;
res = SWTPM_NVRAM_DeleteName(tpm_number,
name,
FALSE);
if (res != TPM_SUCCESS) {
logprintf(STDERR_FILENO,
"Error: Could not delete the volatile "
"state of the TPM.\n");
goto error_terminate;
}
}
return TPM_SUCCESS;
error_terminate:
TPMLIB_Terminate();
return res;
}
TPM_RESULT tpmlib_start(uint32_t flags, TPMLIB_TPMVersion tpmversion)
{
TPM_RESULT res;
if ((res = TPMLIB_ChooseTPMVersion(tpmversion)) != TPM_SUCCESS) {
logprintf(STDERR_FILENO,
"Error: Could not choose TPM 2 implementation.\n");
return res;
}
if ((res = TPMLIB_MainInit()) != TPM_SUCCESS) {
logprintf(STDERR_FILENO,
"Error: Could not initialize libtpms.\n");
return res;
}
if (flags & PTM_INIT_FLAG_DELETE_VOLATILE) {
uint32_t tpm_number = 0;
char *name = TPM_VOLATILESTATE_NAME;
res = SWTPM_NVRAM_DeleteName(tpm_number,
name,
FALSE);
if (res != TPM_SUCCESS) {
logprintf(STDERR_FILENO,
"Error: Could not delete the volatile "
"state of the TPM.\n");
goto error_terminate;
}
}
return TPM_SUCCESS;
error_terminate:
TPMLIB_Terminate();
return res;
}