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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/secureboot/base/header.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2013,2017 */
/* [+] 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 */
#include <secureboot/header.H>
#include <sys/mm.h>
#include <sys/mmio.h>
#include <kernel/console.H>
#include <errno.h>
#include <kernel/bltohbdatamgr.H>
#include "../common/securetrace.H"
#include "../common/errlud_secure.H"
#include <secureboot/secure_reasoncodes.H>
namespace SECUREBOOT
{
Header& baseHeader()
{
return Singleton<Header>::instance();
}
errlHndl_t Header::loadHeader()
{
errlHndl_t l_errl = nullptr;
do {
const void* const pHeader = g_BlToHbDataManager.getHbbHeader();
// Fatal code bug if called with nullptr pointer
if (pHeader == nullptr)
{
SB_ERR("Header::loadHeader(), expected valid address for base image header, but got nullptr.");
/*@
* @errortype
* @severity ERRORLOG::ERRL_SEV_UNRECOVERABLE
* @moduleid SECUREBOOT::MOD_SECURE_LOAD_HEADER
* @reasoncode SECUREBOOT::RC_INVALID_BASE_HEADER
* @userdata1 0
* @userdata2 0
* @devdesc Hostboot Base Image Header not valid
* @custdesc Firmware Error
*/
l_errl = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_UNRECOVERABLE,
SECUREBOOT::MOD_SECURE_LOAD_HEADER,
SECUREBOOT::RC_INVALID_BASE_HEADER,
0,
0,
true);
addSecureUserDetailsToErrlog(l_errl);
l_errl->collectTrace(SECURE_COMP_NAME);
break;
}
_set(pHeader);
} while(0);
return l_errl;
}
void Header::_set(
const void* const i_pHeader)
{
// Fatal code bug if already loaded
assert(iv_data == nullptr,"BUG! In Header::_set(), "
"a cached header is already present.");
// Fatal code bug if called with nullptr pointer
assert(i_pHeader != nullptr,"BUG! In Header::_set(), "
"caller passed a nullptr header address.");
void* pData = malloc(PAGESIZE);
memcpy(pData,i_pHeader,PAGE_SIZE);
iv_data = pData;
pData = nullptr;
}
void Header::getHeader(
const void*& o_pHeader) const
{
// Fatal code bug if queried before loaded
assert(iv_data!=nullptr,"BUG! In getHeader(), "
"header is not present.");
o_pHeader = iv_data;
}
}
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