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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
*/
/**
* \file KMSAgentDataUnitCache.cpp
*/
#include <stdio.h>
#include "SYSCommon.h"
#include "KMSClientProfile.h"
#include "KMSAgentDataUnitCache.h"
CDataUnitCache::CDataUnitCache(int i_iMaxSize)
{
m_iSize = 0;
m_iIndex = 0;
m_iMaxSize = i_iMaxSize;
m_pCache = 0;
K_CreateMutex(&m_Lock);
}
CDataUnitCache::~CDataUnitCache()
{
delete[] m_pCache;
K_DestroyMutex(m_Lock);
}
bool CDataUnitCache::Insert(
const unsigned char* const i_pDataUnitID,
int i_iDataUnitIDMaxLen,
const unsigned char* const i_pDataUnitKeyID ,
int i_iDataUnitKeyIDMaxLen,
const utf8char* const i_wsApplianceNetworkAddress )
{
FATAL_ASSERT( (i_pDataUnitID && i_iDataUnitIDMaxLen == KMS_DATA_UNIT_ID_SIZE) ||
(i_pDataUnitKeyID && i_iDataUnitKeyIDMaxLen == KMS_KEY_ID_SIZE));
FATAL_ASSERT( i_wsApplianceNetworkAddress &&
strlen( i_wsApplianceNetworkAddress ) < KMS_MAX_NETWORK_ADDRESS );
Lock();
if ( m_pCache == 0 )
{
m_pCache = new DataUnitCacheEntry[m_iMaxSize];
if ( !m_pCache )
{
// no error logged on out of memory
Unlock();
#if defined(DEBUG) && defined(METAWARE)
log_printf("CDataUnitCache::Insert new DataUnitCacheEntry alloc failure\n");
#endif
return false;
}
}
if( m_iSize >= m_iMaxSize )
{
// the cache is full, so reuse an old slot
m_iIndex = (m_iIndex + 1) % m_iMaxSize;
}
else
{
m_iIndex = m_iSize;
m_iSize++;
}
strncpy( m_pCache[m_iIndex].m_wsApplianceNetworkAddress,
i_wsApplianceNetworkAddress,
sizeof(m_pCache[m_iIndex].m_wsApplianceNetworkAddress) );
m_pCache[m_iIndex].m_wsApplianceNetworkAddress[sizeof(m_pCache[m_iIndex].m_wsApplianceNetworkAddress)-1] = '\0';
if ( i_pDataUnitID )
{
memcpy( m_pCache[m_iIndex].m_aDataUnitID,
i_pDataUnitID,
i_iDataUnitIDMaxLen );
}
else
{
memset( m_pCache[m_iIndex].m_aDataUnitID,0,KMS_DATA_UNIT_ID_SIZE);
}
if ( i_pDataUnitKeyID )
{
memcpy( m_pCache[m_iIndex].m_aDataUnitKeyID,
i_pDataUnitKeyID,
i_iDataUnitKeyIDMaxLen );
}
else
{
memset(m_pCache[m_iIndex].m_aDataUnitKeyID,0,KMS_KEY_ID_SIZE);
}
Unlock();
return true;
}
bool CDataUnitCache::GetApplianceByDataUnitID(
const unsigned char* const i_pDataUnitID,
int i_iDataUnitIDMaxLen,
utf8char* const o_wsApplianceNetworkAddress,
int i_iMaxApplianceNetworkAddressLen )
{
FATAL_ASSERT( i_pDataUnitID );
FATAL_ASSERT( i_iDataUnitIDMaxLen == KMS_DATA_UNIT_ID_SIZE );
FATAL_ASSERT( i_iMaxApplianceNetworkAddressLen <= KMS_MAX_NETWORK_ADDRESS );
// assumes o_wsApplianceNetworkAddress points to at least KMS_MAX_NETWORK_ADDRESS
Lock();
int i;
for( i = 0; i < m_iSize; i++ )
{
if( memcmp(m_pCache[i].m_aDataUnitID, i_pDataUnitID, KMS_DATA_UNIT_ID_SIZE) == 0 )
{
strncpy( o_wsApplianceNetworkAddress,
m_pCache[i].m_wsApplianceNetworkAddress,
i_iMaxApplianceNetworkAddressLen );
o_wsApplianceNetworkAddress[i_iMaxApplianceNetworkAddressLen-1] = '\0';
Unlock();
return true;
}
}
Unlock();
return false;
}
bool CDataUnitCache::GetApplianceByDataUnitKeyID(
const unsigned char* const i_pDataUnitKeyID,
int i_iDataUnitKeyIDMaxLen,
utf8char* const o_wsApplianceNetworkAddress,
int i_iMaxApplianceNetworkAddressLen )
{
FATAL_ASSERT( i_pDataUnitKeyID );
FATAL_ASSERT( i_iDataUnitKeyIDMaxLen == KMS_KEY_ID_SIZE );
FATAL_ASSERT( i_iMaxApplianceNetworkAddressLen <= KMS_MAX_NETWORK_ADDRESS );
// assumes o_wsApplianceNetworkAddress points to at least KMS_MAX_NETWORK_ADDRESS
Lock();
int i;
for( i = 0; i < m_iSize; i++ )
{
if( memcmp(m_pCache[i].m_aDataUnitKeyID,
i_pDataUnitKeyID, KMS_KEY_ID_SIZE) == 0 )
{
strncpy( o_wsApplianceNetworkAddress,
m_pCache[i].m_wsApplianceNetworkAddress,
i_iMaxApplianceNetworkAddressLen );
o_wsApplianceNetworkAddress[i_iMaxApplianceNetworkAddressLen-1] = '\0';
Unlock();
return true;
}
}
Unlock();
return false;
}
void CDataUnitCache::Lock()
{
K_LockMutex(m_Lock);
}
void CDataUnitCache::Unlock()
{
K_UnlockMutex(m_Lock);
}
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