| // SPDX-License-Identifier: (GPL-2.0+ OR MIT) |
| /* |
| * Copyright (c) 2019 Amlogic, Inc. All rights reserved. |
| */ |
| |
| #include "key_manage_i.h" |
| #define _CMD_BUF_LEN 512 |
| static char _cmdBuf[_CMD_BUF_LEN]; |
| |
| int keymanage_provision_init(const char *buf, int len) |
| { |
| KM_DBG("f(%s)L%d\n", __func__, __LINE__); |
| return 0; |
| } |
| |
| int keymanage_provision_exit(void) |
| { |
| KM_DBG("f(%s)L%d\n", __func__, __LINE__); |
| return 0; |
| } |
| |
| //must be hexdata if stored in efuse |
| int keymanage_provision_write(const char *keyname, const void* keydata, unsigned int datalen) |
| { |
| KM_DBG("f(%s)L%d\n", __func__, __LINE__); |
| |
| snprintf(_cmdBuf, _CMD_BUF_LEN, "factory_provision write %s 0x%p 0x%x", keyname, keydata, datalen); |
| int iRet = run_command(_cmdBuf, 0); |
| KM_MSG("factory provision[%s], query sta=%d\n", keyname, iRet); |
| |
| return iRet; |
| } |
| |
| ssize_t keymanage_provision_size(const char* keyname) |
| { |
| KM_DBG("f(%s)L%d\n", __func__, __LINE__); |
| uint32_t retBuf[12] = {0}; |
| snprintf(_cmdBuf, _CMD_BUF_LEN, "factory_provision query %s 0x%p", keyname, retBuf); |
| int iRet = run_command(_cmdBuf, 0); |
| if (iRet) { |
| KM_MSG("factory provision[%s], query sta=%d\n", keyname, iRet); |
| return 0; |
| } |
| |
| return retBuf[0]; |
| } |
| |
| int keymanage_provision_exist(const char* keyname) |
| { |
| KM_DBG("f(%s)L%d\n", __func__, __LINE__); |
| snprintf(_cmdBuf, _CMD_BUF_LEN, "factory_provision query %s", keyname); |
| int iRet = run_command(_cmdBuf, 0); |
| if (iRet) KM_MSG("factory provision[%s], query sta=%d\n", keyname, iRet); |
| |
| return !iRet; |
| } |
| |
| int keymanage_provision_query_can_read(const char* keyname) |
| { |
| KM_DBG("f(%s)L%d\n", __func__, __LINE__); |
| |
| return 0;//always cannot be read |
| } |
| |
| //read hash instead of actual value |
| int keymanage_provision_read(const char *keyname, void* databuf, const unsigned bufSz) |
| { |
| KM_DBG("f(%s)L%d\n", __func__, __LINE__); |
| uint32_t retBuf[12] = {0}; |
| snprintf(_cmdBuf, _CMD_BUF_LEN, "factory_provision query %s 0x%p", keyname, retBuf); |
| int iRet = run_command(_cmdBuf, 0); |
| if (iRet) { |
| KM_MSG("factory provision[%s], query sta=%d\n", keyname, iRet); |
| return __LINE__; |
| } |
| if (bufSz < 32) { |
| KM_ERR("bufsz %d not enough for sha256sum\n", bufSz); |
| return -__LINE__; |
| } |
| |
| KM_MSG("provision read return sha256sum, but not original data\n"); |
| memcpy(databuf, retBuf + 1, 32); |
| return 0;// |
| } |
| |