char/tpm/tpm2-cmd.c

165 	int rc;
186 	rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_PCR_READ);
187 	if (rc)
188 		return rc;
198 	rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to read a pcr value");
199 	if (rc)
206 		rc = -EINVAL;
216 	return rc;
240 	int rc;
243 	rc = tpm_buf_init(&buf, TPM2_ST_SESSIONS, TPM2_CC_PCR_EXTEND);
244 	if (rc)
245 		return rc;
265 	rc = tpm_transmit_cmd(chip, &buf, 0, "attempting extend a PCR value");
269 	return rc;
351 	int rc;
353 	rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_FLUSH_CONTEXT);
354 	if (rc) {
391 	int rc;
393 	rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_GET_CAPABILITY);
394 	if (rc)
395 		return rc;
399 	rc = tpm_transmit_cmd(chip, &buf, 0, NULL);
400 	if (!rc) {
412 			rc = -ENODATA;
415 	return rc;
432 	int rc;
434 	rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_SHUTDOWN);
435 	if (rc)
459 	int rc;
462 		rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_SELF_TEST);
463 		if (rc)
464 			return rc;
467 		rc = tpm_transmit_cmd(chip, &buf, 0,
471 		if (rc == TPM2_RC_TESTING)
472 			rc = TPM2_RC_SUCCESS;
473 		if (rc == TPM2_RC_INITIALIZE || rc == TPM2_RC_SUCCESS)
474 			return rc;
477 	return rc;
496 	int rc;
498 	rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_GET_CAPABILITY);
499 	if (rc)
500 		return rc;
504 	rc = tpm_transmit_cmd(chip, &buf, 0, NULL);
506 	if (rc >=  0) {
560 	int rc;
563 	rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_GET_CAPABILITY);
564 	if (rc)
565 		return rc;
571 	rc = tpm_transmit_cmd(chip, &buf, 9, "get tpm pcr allocation");
572 	if (rc)
582 		rc = -ENOMEM;
595 			rc = -EFAULT;
607 			rc = tpm2_init_bank_info(chip, nr_alloc_banks);
608 			if (rc < 0)
624 	return rc;
634 	int rc;
636 	rc = tpm2_get_tpm_pt(chip, TPM_PT_TOTAL_COMMANDS, &nr_commands, NULL);
637 	if (rc)
641 		rc = -EFAULT;
648 		rc = -ENOMEM;
652 	rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_GET_CAPABILITY);
653 	if (rc)
660 	rc = tpm_transmit_cmd(chip, &buf, 9 + 4 * nr_commands, NULL);
661 	if (rc) {
668 		rc = -EFAULT;
690 	if (rc > 0)
691 		rc = -ENODEV;
692 	return rc;
710 	int rc;
714 	rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_STARTUP);
715 	if (rc < 0)
716 		return rc;
719 	rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to start the TPM");
722 	return rc;
734 	int rc;
736 	rc = tpm2_get_timeouts(chip);
737 	if (rc)
740 	rc = tpm2_do_selftest(chip);
741 	if (rc && rc != TPM2_RC_INITIALIZE)
744 	if (rc == TPM2_RC_INITIALIZE) {
745 		rc = tpm2_startup(chip);
746 		if (rc)
749 		rc = tpm2_do_selftest(chip);
750 		if (rc)
754 	rc = tpm2_get_cc_attrs_tbl(chip);
755 	if (rc == TPM2_RC_FAILURE || (rc < 0 && rc != -ENOMEM)) {
759 		rc = 0;
767 	if (rc == TPM2_RC_UPGRADE || rc == -ENODATA) {
770 		rc = 0;
773 	if (rc > 0)
774 		rc = -ENODEV;
775 	return rc;