/**************************************************************************
* READ SECRO
**************************************************************************/
uint32 sec_fs_read_secroimg (char* path, char* buf)
{
uint32 ret = SEC_OK;
const uint32 size = sizeof(AND_SECROIMG_T);
uint32 temp = 0;
ASF_FILE fd;
/* ------------------------ */
/* check parameter */
/* ------------------------ */
SMSG(TRUE,"[%s] open '%s'\n",MOD,path);
if(0 == size)
{
ret = ERR_FS_SECRO_READ_SIZE_CANNOT_BE_ZERO;
goto _end;
}
/* ------------------------ */
/* open secro */
/* ------------------------ */
fd = ASF_OPEN(path);
if (ASF_IS_ERR(fd))
{
ret = ERR_FS_SECRO_OPEN_FAIL;
goto _open_fail;
}
/* ------------------------ */
/* read secro */
/* ------------------------ */
/* configure file system type */
osal_set_kernel_fs();
/* adjust read off */
ASF_SEEK_SET(fd,0);
/* read secro content */
if(0 >= (temp = ASF_READ(fd,buf,size)))
{
ret = ERR_FS_SECRO_READ_FAIL;
goto _end;
}
if(size != temp)
{
SMSG(TRUE,"[%s] size '0x%x', read '0x%x'\n",MOD,size,temp);
ret = ERR_FS_SECRO_READ_WRONG_SIZE;
goto _end;
}
/* ------------------------ */
/* check integrity */
/* ------------------------ */
if(SEC_OK != (ret = sec_secro_check()))
{
goto _end;
}
/* ------------------------ */
/* SECROIMG is valid */
/* ------------------------ */
bSecroExist = TRUE;
_end:
ASF_CLOSE(fd);
osal_restore_fs();
_open_fail:
return ret;
}
int sec_dev_read_secroimg(void)
{
int ret = SEC_OK;
uint32 search_offset = SECRO_SEARCH_START;
uint32 search_len = SECRO_SEARCH_LEN;
uint32 mtd_num;
uint32 mtd_off = SECRO_SEARCH_START;
const uint32 img_len = rom_info.m_sec_ro_length;
const uint32 cipher_len = sizeof(AND_AC_ANDRO_T) + sizeof(AND_AC_MD_T)+ sizeof(AND_AC_MD2_T);
/* ------------------------ */
/* check status */
/* ------------------------ */
if(0 == secro_img_mtd_num)
{
ret = ERR_SECROIMG_PART_NOT_FOUND;
goto _end;
}
mtd_num = secro_img_mtd_num;
/* ------------------------ */
/* check parameter */
/* ------------------------ */
if(0 == img_len)
{
ret = ERR_SECROIMG_INVALID_IMG_LEN;
goto _end;
}
if(img_len != sizeof(secroimg))
{
ret = ERR_SECROIMG_LEN_INCONSISTENT_WITH_PL;
goto _end;
}
SMSG(TRUE,"[%s] SECRO image len '0x%x'\n",MOD, sizeof(secroimg));
/* ------------------------ */
/* find ac region */
/* ------------------------ */
/* read 1MB nand flash data to search rom info */
for(search_offset = SECRO_SEARCH_START; search_offset < (search_len + SECRO_SEARCH_START); search_offset += SECRO_SEARCH_REGION)
{
/* search partition */
if(mtd_off < mtd_part_map[mtd_num].sz)
{
if(FALSE == dump_secro_info)
{
SMSG(TRUE,"dev %2d, 0x%08x, 0x%08x\n", mtd_num, mtd_off, search_offset);
dump_secro_info = TRUE;
}
/* ------------------------ */
/* search secro image */
/* ------------------------ */
ret = read_info (mtd_num, mtd_off, SECRO_SEARCH_REGION, ROM_SEC_AC_REGION_ID, ROM_SEC_AC_REGION_ID_LEN, img_len, (uchar*)&secroimg);
if(SEC_OK == ret)
{
SMSG(TRUE,"[%s] SECRO img is found (lock)\n",MOD);
/* ------------------------ */
/* decrypt secro image */
/* ------------------------ */
osal_secro_lock();
dump_buf((uchar*)&secroimg.m_andro,0x4);
if(TRUE == sec_secro_ac())
{
sp_hacc_dec((uchar*)&secroimg.m_andro, cipher_len, TRUE,HACC_USER1,TRUE);
}
dump_buf((uchar*)&secroimg.m_andro,0x4);
/* ------------------------ */
/* check integrity */
/* ------------------------ */
if(SEC_OK != (ret = sec_secro_check()))
{
osal_secro_unlock();
goto _end;
}
/* ------------------------ */
/* encrypt secro image */
/* ------------------------ */
if(TRUE == sec_secro_ac())
{
sp_hacc_enc((uchar*)&secroimg.m_andro, cipher_len, TRUE,FALSE,TRUE);
}
dump_buf((uchar*)&secroimg.m_andro,0x4);
/* ------------------------ */
/* SECROIMG is valid */
/* ------------------------ */
bSecroExist = TRUE;
osal_secro_unlock();
goto _end;
}
}
/* next should move to next partition ? */
if(search_offset >= mtd_part_map[mtd_num+1].off)
{
mtd_num ++;
mtd_off = 0;
search_offset -= SECRO_SEARCH_REGION;
}
else
{
mtd_off += SECRO_SEARCH_REGION;
}
}
ret = ERR_SECROIMG_MTD_NOT_FOUND;
_end:
return ret;
}
