char/tpm/tpm1-cmd.c

327 	int rc;
331 	rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_STARTUP);
332 	if (rc < 0)
333 		return rc;
337 	rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to start the TPM");
339 	return rc;
347 	ssize_t rc;
349 	rc = tpm1_getcap(chip, TPM_CAP_PROP_TIS_TIMEOUT, &cap, NULL,
351 	if (rc == TPM_ERR_INVALID_POSTINIT) {
353 			return rc;
355 		rc = tpm1_getcap(chip, TPM_CAP_PROP_TIS_TIMEOUT, &cap,
360 	if (rc) {
362 			rc);
363 		return rc;
417 	rc = tpm1_getcap(chip, TPM_CAP_PROP_TIS_DURATION, &cap,
420 	if (rc)
421 		return rc;
467 	int rc;
469 	rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_PCR_EXTEND);
470 	if (rc)
471 		return rc;
476 	rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE, log_msg);
478 	return rc;
486 	int rc;
488 	rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_GET_CAP);
489 	if (rc)
490 		return rc;
506 	rc = tpm_transmit_cmd(chip, &buf, min_cap_length, desc);
507 	if (!rc)
510 	return rc;
538 	int rc;
540 	rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_GET_RANDOM);
541 	if (rc)
542 		return rc;
547 		rc = tpm_transmit_cmd(chip, &buf, sizeof(out->rng_data_len),
549 		if (rc) {
550 			if (rc > 0)
551 				rc = -EIO;
559 			rc = -EFAULT;
565 			rc = -EFAULT;
577 	rc = total ? (int)total : -EIO;
580 	return rc;
587 	int rc;
589 	rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_PCRREAD);
590 	if (rc)
591 		return rc;
595 	rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE,
597 	if (rc)
601 		rc = -EFAULT;
609 	return rc;
623 	int rc;
625 	rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_CONTINUE_SELFTEST);
626 	if (rc)
627 		return rc;
629 	rc = tpm_transmit_cmd(chip, &buf, 0, "continue selftest");
631 	return rc;
644 	int rc;
654 	rc = tpm1_continue_selftest(chip);
655 	if (rc == TPM_ERR_INVALID_POSTINIT) {
657 		dev_info(&chip->dev, "TPM not ready (%d)\n", rc);
662 	if (rc)
663 		return rc;
667 		rc = tpm1_pcr_read(chip, 0, dummy);
673 		if (rc == -ETIME) {
679 		if (rc == TPM_ERR_DISABLED || rc == TPM_ERR_DEACTIVATED) {
681 				 rc);
688 		if (rc != TPM_WARN_DOING_SELFTEST)
689 			return rc;
693 	return rc;
706 	int rc;
708 	rc = tpm1_get_timeouts(chip);
709 	if (rc)
711 	rc = tpm1_do_selftest(chip);
712 	if (rc == TPM_ERR_FAILEDSELFTEST) {
717 	} else if (rc) {
722 	return rc;
724 	if (rc > 0)
725 		rc = -ENODEV;
726 	return rc;
747 	int rc;
752 		rc = tpm1_pcr_extend(chip, tpm_suspend_pcr, dummy_hash,
755 	rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_SAVESTATE);
756 	if (rc)
757 		return rc;
760 		rc = tpm_transmit_cmd(chip, &buf, 0, NULL);
771 		if (rc != TPM_WARN_RETRY)
778 	if (rc)
780 			rc);
787 	return rc;