/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* $Source: src/usr/secureboot/common/errlud_secure.C $                   */
/*                                                                        */
/* OpenPOWER HostBoot Project                                             */
/*                                                                        */
/* Contributors Listed Below - COPYRIGHT 2014,2017                        */
/* [+] International Business Machines Corp.                              */
/*                                                                        */
/*                                                                        */
/* Licensed under the Apache License, Version 2.0 (the "License");        */
/* you may not use this file except in compliance with the License.       */
/* You may obtain a copy of the License at                                */
/*                                                                        */
/*     http://www.apache.org/licenses/LICENSE-2.0                         */
/*                                                                        */
/* Unless required by applicable law or agreed to in writing, software    */
/* distributed under the License is distributed on an "AS IS" BASIS,      */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
/* implied. See the License for the specific language governing           */
/* permissions and limitations under the License.                         */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */
/**
 *  @file errlud_secure.C
 *
 *  @brief Implementation of classes to log SECUREBOOT FFDC
 */
#include <secureboot/service.H>
#include <secureboot/secure_reasoncodes.H>
#include "errlud_secure.H"
#include <kernel/bltohbdatamgr.H>

namespace SECUREBOOT
{

//------------------------------------------------------------------------------
// Enum defining MAGIC NUMBERS used for checks below
//------------------------------------------------------------------------------
enum {
    PARSER_SIZEOF_SHA512_t           = 64,
    PARSER_SIZEOF_UINT32_t           =  4,
    PARSER_SIZEOF_UINT8_t            =  1,
    PARSER_SIZEOF_TARGET_HKH_SECTION = 69,
};

//------------------------------------------------------------------------------
//  SECURE System HW Keys Hash User Details
//------------------------------------------------------------------------------
UdSystemHwKeyHash::UdSystemHwKeyHash(const SHA512_t i_hash)
{
    // Set up Ud instance variables
    iv_CompId = SECURE_COMP_ID;
    iv_Version = SECURE_UDT_VERSION_1;
    iv_SubSection = SECURE_UDT_SYSTEM_HW_KEY_HASH;

    //***** Memory Layout *****
    // 64 bytes : SHA512_t of Target HW Key Hash

    static_assert(sizeof(SHA512_t) == PARSER_SIZEOF_SHA512_t, "Expected SHA512_t size is 64 bytes");

    char * l_pBuf = reinterpret_cast<char *>(
                          reallocUsrBuf(sizeof(SHA512_t)) );

    memcpy(l_pBuf, i_hash, sizeof(SHA512_t));
    l_pBuf += sizeof(SHA512_t);
}

//------------------------------------------------------------------------------
UdSystemHwKeyHash::~UdSystemHwKeyHash()
{

}

//------------------------------------------------------------------------------
//  SECURE Target HW Keys Hash User Details
//------------------------------------------------------------------------------
UdTargetHwKeyHash::UdTargetHwKeyHash(const TARGETING::Target * i_target,
                                     const uint8_t i_side,
                                     const SHA512_t i_hash)
{
    // Set up Ud instance variables
    iv_CompId = SECURE_COMP_ID;
    iv_Version = SECURE_UDT_VERSION_1;
    iv_SubSection = SECURE_UDT_TARGET_HW_KEY_HASH;

    //***** Memory Layout *****
    // 4 bytes  : Target HUID
    // 1 byte   : SBE EEPROM (Primary or Backup)
    // 64 bytes : SHA512_t of Target HW Key Hash

    static_assert(sizeof(uint32_t)==PARSER_SIZEOF_UINT32_t, "Expected sizeof(uint32_t) is 4");
    static_assert(sizeof(uint8_t)==PARSER_SIZEOF_UINT8_t, "Expected sizeof(uint8_t) is 1");
    static_assert(sizeof(SHA512_t) == PARSER_SIZEOF_SHA512_t, "Expected SHA512_t size is 64 bytes");
    static_assert((sizeof(uint32_t) + sizeof(uint8_t) + sizeof(SHA512_t)) == PARSER_SIZEOF_TARGET_HKH_SECTION,
                  "Expected Buffer length is 69 bytes");

    char * l_pBuf = reinterpret_cast<char *>(
                          reallocUsrBuf(sizeof(uint32_t)
                                        +sizeof(uint8_t)
                                        +sizeof(SHA512_t)));

    uint32_t tmp32 = 0;
    uint8_t tmp8 = 0;

    tmp32 = TARGETING::get_huid(i_target);
    memcpy(l_pBuf, &tmp32, sizeof(tmp32));
    l_pBuf += sizeof(tmp32);

    tmp8 = static_cast<uint8_t>(i_side);
    memcpy(l_pBuf, &tmp8, sizeof(tmp8));
    l_pBuf += sizeof(tmp8);

    memcpy(l_pBuf, i_hash, sizeof(SHA512_t));
    l_pBuf += sizeof(SHA512_t);
}

//------------------------------------------------------------------------------
UdTargetHwKeyHash::~UdTargetHwKeyHash()
{

}

//------------------------------------------------------------------------------
//  SECURE Security Settings User Details
//------------------------------------------------------------------------------
UdSecuritySettings::UdSecuritySettings()
{
    // Set up Ud instance variables
    iv_CompId = SECURE_COMP_ID;
    iv_Version = SECURE_UDT_VERSION_1;
    iv_SubSection = SECURE_UDT_SECURITY_SETTINGS;

    char * l_pBuf = reinterpret_cast<char *>(reallocUsrBuf(
                                                        sizeof(detailsLayout)));

    detailsLayout * l_pDetailsLayout = reinterpret_cast<detailsLayout *>(l_pBuf);

    //***** Version SECURE_UDT_VERSION_1 Memory Layout *****
    // 1 byte   : Secure Access Bit
    // 1 byte   : Security Override
    // 1 byte   : Allow Attribute Overrides

    l_pDetailsLayout->secAccessBit = 0xFF;
    l_pDetailsLayout->secOverride = 0xFF;
    l_pDetailsLayout->allowAttrOverride = 0xFF;

#ifndef __HOSTBOOT_RUNTIME
    // Only check BlToHbData if it is valid, otherwise fields defaulted to 0xFF
    if (g_BlToHbDataManager.isValid())
    {
        l_pDetailsLayout->secAccessBit = g_BlToHbDataManager.getSecureAccessBit();
        l_pDetailsLayout->secOverride = g_BlToHbDataManager.getSecurityOverride();
        l_pDetailsLayout->allowAttrOverride = g_BlToHbDataManager.getAllowAttrOverrides();
    }
#endif

}

//------------------------------------------------------------------------------
UdSecuritySettings::~UdSecuritySettings()
{

}

} // end SECUREBOOT namespace