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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/sbefw/core/sbeSecurity.C $ */
/* */
/* OpenPOWER sbe Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2017,2019 */
/* [+] 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 "sbeSecurity.H"
#include "sbetrace.H"
#include "sbeglobals.H"
#include "fapi2.H"
#include "sbeSecurityGen.H"
namespace SBE_SECURITY
{
//----------------------------------------------------------------------------
bool isAllowed(const uint32_t i_addr, uint64_t i_mask, accessType i_type)
{
bool ret = true;
if(SBE_GLOBAL->sbeFWSecurityEnabled)
{
if(i_type == WRITE)
{
ret = WHITELIST::isPresent(i_addr);
if( (ret == false ) && (i_mask != 0xffffffffffffffffull ))
{
ret = GREYLIST::isPresent(i_addr, i_mask);
}
}
else if(i_type == READ)
ret = !BLACKLIST::isPresent(i_addr);
SBE_INFO("SBE_SECURITY access[%d] allowed[%d] addr[0x%08x]",
i_type, ret, i_addr);
}
return ret;
}
//----------------------------------------------------------------------------
uint32_t updateAndSendSecTOCHdr( sbeMemAccessInterface *i_pMemInterface )
{
#define SBE_FUNC "updateAndSendSecTOCHdr"
SBE_ENTER(SBE_FUNC);
uint32_t fapiRc = fapi2::FAPI2_RC_SUCCESS;
sec_header_dump_t l_secListDumpHdr;
/// Send the list of _T1, _T2 and _T3 header count
l_secListDumpHdr.wl_t1_count = WHITELIST::t1.size;
l_secListDumpHdr.wl_t2_count = WHITELIST::t2.size;
l_secListDumpHdr.wl_t3_count = WHITELIST::t3.size;
l_secListDumpHdr.bl_t1_count = BLACKLIST::t1.size;
l_secListDumpHdr.bl_t2_count = BLACKLIST::t2.size;
l_secListDumpHdr.bl_t3_count = BLACKLIST::t3.size;
l_secListDumpHdr.gl_t1_count = GREYLIST::t1.size;
SBE_INFO("SBE_SECURITY whitelist t1[%d] t2[%d] t3[0x%d] ",
WHITELIST::t1.size, WHITELIST::t2.size, WHITELIST::t3.size);
SBE_INFO("SBE_SECURITY blacklist t1[%d] t2[%d] t3[0x%d] ",
BLACKLIST::t1.size, BLACKLIST::t2.size, BLACKLIST::t3.size);
SBE_INFO("SBE_SECURITY greylist t1[%d] ", GREYLIST::t1.size);
fapiRc = i_pMemInterface->accessWithBuffer(&l_secListDumpHdr,
sizeof(l_secListDumpHdr),
false);
if(fapiRc != fapi2::FAPI2_RC_SUCCESS)
{
SBE_ERROR(SBE_FUNC "Failed to write accessWithBuffer to hostboot");
}
SBE_EXIT(SBE_FUNC);
return fapiRc;
#undef SBE_FUNC
}
//----------------------------------------------------------------------------
uint32_t sbeSecurityWhiteBlackListDump( sbeMemAccessInterface *i_pMemInterface,
const secListType &i_listType )
{
#define SBE_FUNC "sbeSecurityWhiteBlackListDump"
SBE_ENTER(SBE_FUNC);
uint32_t fapiRc = fapi2::FAPI2_RC_SUCCESS;
_t1_t * t1 = NULL;
uint32_t t1_size = 0;
_t2_t * t2 = NULL;
uint32_t t2_size = 0;
_t3_t * t3 = NULL;
uint32_t t3_size = 0;
if( i_listType == SEC_WHITE_LIST )
{
t1 = WHITELIST::_t1;
t1_size = WHITELIST::t1.size;
t2 = WHITELIST::_t2;
t2_size = WHITELIST::t2.size;
t3 = WHITELIST::_t3;
t3_size = WHITELIST::t3.size;
}
else if( i_listType == SEC_BLACK_LIST )
{
t1 = BLACKLIST::_t1;
t1_size = BLACKLIST::t1.size;
t2 = BLACKLIST::_t2;
t2_size = BLACKLIST::t2.size;
t3 = BLACKLIST::_t3;
t3_size = BLACKLIST::t3.size;
}
do
{
// Update and Send the whitelist T1
for( uint32_t i = 0; i < t1_size; i++)
{
fapiRc = i_pMemInterface->accessWithBuffer(&t1[i].key_start,
sizeof(uint8_t), false);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
fapiRc = i_pMemInterface->accessWithBuffer(&t1[i].key_end,
sizeof(uint8_t), false);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
fapiRc = i_pMemInterface->accessWithBuffer(&t1[i].value,
sizeof(uint8_t), false);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
}
// Update and Send the whitelist T2
for( uint32_t i = 0; i < t2_size; i++)
{
fapiRc = i_pMemInterface->accessWithBuffer(&t2[i].key,
sizeof(uint8_t), false);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
fapiRc = i_pMemInterface->accessWithBuffer(&t2[i].value,
sizeof(uint16_t), false);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
}
// Update and Send the whitelist T3
for( uint32_t i = 0; i < t3_size; i++)
{
fapiRc = i_pMemInterface->accessWithBuffer(&t3[i].value,
sizeof(uint16_t), false);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
}
}
while(0);
if(fapiRc != fapi2::FAPI2_RC_SUCCESS)
{
SBE_ERROR(SBE_FUNC "Failed to send Black/WhiteListDump to hostboot");
}
SBE_EXIT(SBE_FUNC);
return fapiRc;
#undef SBE_FUNC
}
//----------------------------------------------------------------------------
uint32_t sbeSecurityGreyListDump( sbeMemAccessInterface *i_pMemInterface )
{
#define SBE_FUNC "sbeSecurityGreyListDump"
SBE_ENTER(SBE_FUNC);
uint32_t fapiRc = fapi2::FAPI2_RC_SUCCESS;
// Update and Send the blacklist T1
for(uint32_t i = 0; i < GREYLIST::t1.size; i++)
{
fapiRc = i_pMemInterface->accessWithBuffer(&GREYLIST::_t1[i].key,
sizeof(uint32_t), false);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
fapiRc = i_pMemInterface->accessWithBuffer(&GREYLIST::_t1[i].value,
sizeof(uint64_t), false);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
}
if(fapiRc != fapi2::FAPI2_RC_SUCCESS)
{
SBE_ERROR(SBE_FUNC "Failed to send GreyListDump to hostboot");
}
SBE_EXIT(SBE_FUNC);
return fapiRc;
#undef SBE_FUNC
}
//----------------------------------------------------------------------------
uint32_t sendSecurityListDumpToHB(sbeMemAccessInterface *i_pMemInterface)
{
#define SBE_FUNC "sendSecurityListDumpToHB"
SBE_ENTER(SBE_FUNC);
uint32_t fapiRc = fapi2::FAPI2_RC_SUCCESS;
do
{
// Update and Send the list of TOC of _T1, _T2 and _T3 header count
fapiRc = updateAndSendSecTOCHdr(i_pMemInterface);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
// Update and Send the whitelist T1,T2 and T3 data
fapiRc = sbeSecurityWhiteBlackListDump(i_pMemInterface, SEC_WHITE_LIST);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
// Update and Send the blacklist T1,T2 and T3 data
fapiRc = sbeSecurityWhiteBlackListDump(i_pMemInterface,SEC_BLACK_LIST);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
// Update and Send the greylist T1 data
fapiRc = sbeSecurityGreyListDump(i_pMemInterface);
if( fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
uint8_t l_endOfdump = 0;
fapiRc = i_pMemInterface->accessWithBuffer(&l_endOfdump,
sizeof(l_endOfdump),
true);
if(fapiRc != fapi2::FAPI2_RC_SUCCESS) break;
}
while(0);
if(fapiRc != fapi2::FAPI2_RC_SUCCESS)
{
SBE_ERROR(SBE_FUNC "Failed to write SecData Dump to hostboot");
}
SBE_EXIT(SBE_FUNC);
return fapiRc;
#undef SBE_FUNC
}
} // namespace SBE_SECURITY
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