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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/secureboot/trusted/base/trustedboot_base.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2016 */
/* [+] 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 trustedboot_base.C
*
* @brief Trusted boot base interfaces
* This file is compiled in regardless of CONFIG_TPMDD
*/
// ----------------------------------------------
// Includes
// ----------------------------------------------
#include <string.h>
#include <sys/time.h>
#include <sys/msg.h>
#include <trace/interface.H>
#include <errl/errlentry.H>
#include <errl/errlmanager.H>
#include <errl/errludtarget.H>
#include <errl/errludstring.H>
#include <secureboot/trustedbootif.H>
#include <secureboot/trustedboot_reasoncodes.H>
#include "../trustedboot.H"
#include "../trustedbootCmds.H"
#include "../trustedbootUtils.H"
#include "trustedbootMsg.H"
// ----------------------------------------------
// Trace definitions
// ----------------------------------------------
#ifdef CONFIG_TPMDD
trace_desc_t* g_trac_trustedboot = NULL;
TRAC_INIT( & g_trac_trustedboot, "TRBOOT", KILOBYTE );
#endif
namespace TRUSTEDBOOT
{
#ifdef CONFIG_TPMDD
/// Global object to store TPM status
SystemTpms systemTpms;
TpmTarget::TpmTarget()
{
memset(this, 0, sizeof(TpmTarget));
available = true; // Default to available until we know better
mutex_init(&tpmMutex);
}
#endif
errlHndl_t pcrExtendSeparator(bool i_sendAsync)
{
errlHndl_t err = NULL;
#ifdef CONFIG_TPMDD
MessageMode mode = (i_sendAsync) ? MSG_MODE_ASYNC : MSG_MODE_SYNC;
TRACUCOMP( g_trac_trustedboot,
ENTER_MRK"pcrExtendSeparator()");
Message* msg = Message::factory(MSG_TYPE_SEPARATOR,
0,
NULL,
mode);
assert(msg !=NULL, "BUG! Message is NULL");
if (!i_sendAsync)
{
int rc = msg_sendrecv(systemTpms.msgQ, msg->iv_msg);
if (0 == rc)
{
err = msg->iv_errl;
msg->iv_errl = NULL;
}
// Sendrecv failure
else
{
/*@
* @errortype ERRL_SEV_UNRECOVERABLE
* @moduleid MOD_TPM_SEPARATOR
* @reasoncode RC_SENDRECV_FAIL
* @userdata1 rc from msq_sendrecv()
* @devdesc msg_sendrecv() failed
* @custdesc Firmware error during system boot
*/
err = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
MOD_TPM_SEPARATOR,
RC_SENDRECV_FAIL,
rc,
0,
true);
err->collectTrace(SECURE_COMP_NAME);
}
delete msg;
msg = NULL;
}
else
{
int rc = msg_send(systemTpms.msgQ, msg->iv_msg);
if (rc)
{
/*@
* @errortype ERRL_SEV_UNRECOVERABLE
* @moduleid MOD_TPM_SEPARATOR
* @reasoncode RC_SEND_FAIL
* @userdata1 rc from msq_send()
* @devdesc msg_send() failed
* @custdesc Firmware error during system boot
*/
err = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
MOD_TPM_SEPARATOR,
RC_SEND_FAIL,
rc,
0,
true);
err->collectTrace(SECURE_COMP_NAME);
}
}
TRACUCOMP( g_trac_trustedboot,
EXIT_MRK"pcrExtendSeparator() - %s",
((NULL == err) ? "No Error" : "With Error") );
#endif
return err;
}
errlHndl_t pcrExtend(TPM_Pcr i_pcr,
const uint8_t* i_digest,
size_t i_digestSize,
const char* i_logMsg,
bool i_sendAsync)
{
errlHndl_t err = NULL;
#ifdef CONFIG_TPMDD
MessageMode mode = MSG_MODE_ASYNC;
TRACDCOMP( g_trac_trustedboot, ENTER_MRK"pcrExtend()" );
TRACUCOMP( g_trac_trustedboot,
ENTER_MRK"pcrExtend() pcr=%d msg='%s'", i_pcr, i_logMsg);
TRACUBIN(g_trac_trustedboot, "pcrExtend() digest:", i_digest, i_digestSize);
// msgData will be freed when message is freed
PcrExtendMsgData* msgData = new PcrExtendMsgData;
memset(msgData, 0, sizeof(PcrExtendMsgData));
msgData->mPcrIndex = i_pcr;
msgData->mAlgId = TPM_ALG_SHA256;
msgData->mEventType = EV_ACTION;
msgData->mDigestSize = (i_digestSize < sizeof(msgData->mDigest) ?
i_digestSize : sizeof(msgData->mDigest));
// copy over the incoming digest and truncate to what we need
memcpy(msgData->mDigest, i_digest, msgData->mDigestSize);
// Truncate logMsg if required
memcpy(msgData->mLogMsg, i_logMsg,
(strlen(i_logMsg) < sizeof(msgData->mLogMsg) ? strlen(i_logMsg) :
sizeof(msgData->mLogMsg)-1) // Leave room for NULL termination
);
if (!i_sendAsync)
{
mode = MSG_MODE_SYNC;
}
Message* msg = Message::factory(MSG_TYPE_PCREXTEND,
sizeof(PcrExtendMsgData),
reinterpret_cast<uint8_t*>(msgData),
mode);
// Message owns msgData now
msgData = NULL;
if (!i_sendAsync)
{
int rc = msg_sendrecv(systemTpms.msgQ, msg->iv_msg);
if (0 == rc)
{
err = msg->iv_errl;
msg->iv_errl = NULL;
}
// Sendrecv failure
else
{
/*@
* @errortype ERRL_SEV_UNRECOVERABLE
* @moduleid MOD_TPM_PCREXTEND
* @reasoncode RC_SENDRECV_FAIL
* @userdata1 rc from msq_sendrecv()
* @devdesc msg_sendrecv() failed
* @custdesc Firmware error during system boot
*/
err = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
MOD_TPM_PCREXTEND,
RC_SENDRECV_FAIL,
rc,
0,
true);
err->collectTrace(SECURE_COMP_NAME);
}
delete msg;
msg = NULL;
}
else
{
int rc = msg_send(systemTpms.msgQ, msg->iv_msg);
if (rc)
{
/*@
* @errortype ERRL_SEV_UNRECOVERABLE
* @moduleid MOD_TPM_PCREXTEND
* @reasoncode RC_SEND_FAIL
* @userdata1 rc from msq_send()
* @devdesc msg_send() failed
* @custdesc Firmware error during system boot
*/
err = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
MOD_TPM_PCREXTEND,
RC_SEND_FAIL,
rc,
0,
true);
err->collectTrace(SECURE_COMP_NAME);
}
}
TRACUCOMP( g_trac_trustedboot,
EXIT_MRK"pcrExtend() - %s",
((NULL == err) ? "No Error" : "With Error") );
#endif
return err;
}
errlHndl_t extendPnorSectionHash(const SECUREBOOT::ContainerHeader& i_conHdr,
const void* i_vaddr,
const PNOR::SectionId i_sec)
{
errlHndl_t l_errhdl = NULL;
// TODO securebootp9
// remove the following code and implement based on p8 code
TRACFCOMP(g_trac_trustedboot, "ExtendPnorSectionHash called for section %d and "
" address %.16llX with payload text size %i"
"but not unimplemented in p9", i_sec, i_vaddr);
return l_errhdl;
}
errlHndl_t extendBaseImage()
{
errlHndl_t pError = NULL;
// TODO securebootp9
// implement extendBaseImage based on p8 code
return pError;
}
} // end TRUSTEDBOOT
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