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/* Copyright Statement:
*
* This software/firmware and related documentation ("MediaTek Software") are
* protected under relevant copyright laws. The information contained herein
* is confidential and proprietary to MediaTek Inc. and/or its licensors.
* Without the prior written permission of MediaTek inc. and/or its licensors,
* any reproduction, modification, use or disclosure of MediaTek Software,
* and information contained herein, in whole or in part, shall be strictly prohibited.
*
* MediaTek Inc. (C) 2011. All rights reserved.
*
* BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
* THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
* CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
* SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
* STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
* CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* The following software/firmware and/or related documentation ("MediaTek Software")
* have been modified by MediaTek Inc. All revisions are subject to any receiver's
* applicable license agreements with MediaTek Inc.
*/
#include "sec_osal.h"
/*#include <mach/mt_typedefs.h>*/
#include "sec_hal.h"
#include "sec_osal_light.h"
#include "sec_boot_lib.h"
#include "sec_error.h"
#include "hacc_mach.h"
/******************************************************************************
* This file provide the HACC operation function to secure library
* All the functions should be general ...
******************************************************************************/
#define MOD "ASF"
/******************************************************************************
* GLOBAL VARIABLES
******************************************************************************/
bool bHACC_HWWrapKeyInit = FALSE;
bool bHACC_SWKeyInit = FALSE;
/******************************************************************************
* INTERNAL VARIABLES
******************************************************************************/
static const unsigned int g_HACC_CFG_1[8] = {
0x9ED40400, 0x00E884A1, 0xE3F083BD, 0x2F4E6D8A,
0xFF838E5C, 0xE940A0E3, 0x8D4DECC6, 0x45FC0989
};
static const unsigned int g_HACC_CFG_2[8] = {
0xAA542CDA, 0x55522114, 0xE3F083BD, 0x55522114,
0xAA542CDA, 0xAA542CDA, 0x55522114, 0xAA542CDA
};
static const unsigned int g_HACC_CFG_3[8] = {
0x2684B690, 0xEB67A8BE, 0xA113144C, 0x177B1215,
0x168BEE66, 0x1284B684, 0xDF3BCE3A, 0x217F6FA2
};
/******************************************************************************
* INTERNAL ENGINE
******************************************************************************/
static unsigned char *sp_hacc_internal(unsigned char *buf, unsigned int size, bool bAC,
HACC_USER user, bool bDoLock, AES_OPS aes_type, bool bEn)
{
unsigned int err = 0;
/* ---------------------------- */
/* get hacc lock */
/* ---------------------------- */
if (TRUE == bDoLock) {
/* If the semaphore is successfully acquired, this function returns 0. */
err = osal_hacc_lock();
if (err) {
err = ERR_SBOOT_HACC_LOCK_FAIL;
goto _err;
}
}
/* ---------------------------- */
/* ciphering and force AC */
/* ---------------------------- */
switch (user) {
case HACC_USER1:
/* ---------------------------- */
/* use smart phone hacc function 1 */
/* ---------------------------- */
HACC_V3_Init(bEn, g_HACC_CFG_1);
HACC_V3_Run((unsigned int *)buf, size, (unsigned int *)buf);
HACC_V3_Terminate();
break;
case HACC_USER2:
/* ---------------------------- */
/* use smart phone hacc function 2 */
/* ---------------------------- */
HACC_V3_Init(bEn, g_HACC_CFG_2);
HACC_V3_Run((unsigned int *)buf, size, (unsigned int *)buf);
HACC_V3_Terminate();
break;
case HACC_USER3:
/* use smart phone hacc function 3 */
/* ---------------------------- */
if (FALSE == bHACC_HWWrapKeyInit) {
err = ERR_HACC_HW_WRAP_KEY_NOT_INIT;
goto _err;
}
err = hacc_set_key(AES_HW_WRAP_KEY, AES_KEY_256);
if (SEC_OK != err)
goto _err;
err = hacc_do_aes(aes_type, buf, buf, AES_BLK_SZ_ALIGN(size));
if (SEC_OK != err)
goto _err;
break;
case HACC_USER4:
/* ---------------------------- */
/* use smart phone hacc function 4 */
/* ---------------------------- */
HACC_V3_Init(bEn, g_HACC_CFG_3);
HACC_V3_Run((unsigned int *)buf, size, (unsigned int *)buf);
HACC_V3_Terminate();
break;
default:
err = ERR_HACC_UNKNOWN_USER;
goto _err;
}
/* ---------------------------- */
/* release hacc lock */
/* ---------------------------- */
if (TRUE == bDoLock)
osal_hacc_unlock();
return buf;
_err:
if (TRUE == bDoLock)
osal_hacc_unlock();
pr_debug("[%s] HACC Fail (0x%x)\n", MOD, err);
BUG_ON(!(0));
return buf;
}
/******************************************************************************
* ENCRYPTION
******************************************************************************/
unsigned char *masp_hal_sp_hacc_enc(unsigned char *buf, unsigned int size, unsigned char bAC,
HACC_USER user, unsigned char bDoLock)
{
return sp_hacc_internal(buf, size, TRUE, user, bDoLock, AES_ENC, TRUE);
}
/******************************************************************************
* DECRYPTION
******************************************************************************/
unsigned char *masp_hal_sp_hacc_dec(unsigned char *buf, unsigned int size, unsigned char bAC,
HACC_USER user, unsigned char bDoLock)
{
return sp_hacc_internal(buf, size, TRUE, user, bDoLock, AES_DEC, FALSE);
}
/******************************************************************************
* HACC BLK SIZE
******************************************************************************/
unsigned int masp_hal_sp_hacc_blk_sz(void)
{
return AES_BLK_SZ;
}
/******************************************************************************
* HACC INITIALIZATION
******************************************************************************/
unsigned int masp_hal_sp_hacc_init(unsigned char *sec_seed, unsigned int size)
{
AES_KEY_SEED keyseed;
unsigned int i = 0;
if (_CRYPTO_SEED_LEN != size)
return ERR_HACC_SEED_LEN_ERROR;
keyseed.size = HACC_AES_MAX_KEY_SZ;
for (i = 0; i < HACC_AES_MAX_KEY_SZ / 2; i++) {
keyseed.seed[i] = sec_seed[i];
keyseed.seed[HACC_AES_MAX_KEY_SZ - i - 1] = sec_seed[i] + MTK_HACC_SEED;
}
pr_debug("0x%x,0x%x,0x%x,0x%x\n", keyseed.seed[0], keyseed.seed[1], keyseed.seed[2],
keyseed.seed[3]);
return hacc_init(&keyseed);
}
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