| /* |
| * Copyright 2012 Google Inc. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but without any warranty; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #include <stdint.h> |
| #include <vboot_api.h> |
| |
| #include "drivers/tpm/tpm.h" |
| |
| VbError_t VbExTpmInit(void) |
| { |
| return VBERROR_SUCCESS; |
| } |
| |
| VbError_t VbExTpmClose(void) |
| { |
| return VBERROR_SUCCESS; |
| } |
| |
| VbError_t VbExTpmOpen(void) |
| { |
| return VBERROR_SUCCESS; |
| } |
| |
| VbError_t VbExTpmSendReceive(const uint8_t *request, uint32_t request_length, |
| uint8_t *response, uint32_t *response_length) |
| { |
| size_t len = *response_length; |
| if (tpm_xmit(request, request_length, response, &len)) |
| return VBERROR_UNKNOWN; |
| /* check 64->32bit overflow and (re)check response buffer overflow */ |
| if (len > *response_length) |
| return VBERROR_UNKNOWN; |
| *response_length = len; |
| return VBERROR_SUCCESS; |
| } |