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/* $Id: DHCPD.h $ */
/** @file
* DHCP server - protocol logic
*/
/*
* Copyright (C) 2017-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#ifndef VBOX_INCLUDED_SRC_Dhcpd_DHCPD_h
#define VBOX_INCLUDED_SRC_Dhcpd_DHCPD_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include "DhcpdInternal.h"
#include <iprt/cpp/ministring.h>
#include "Config.h"
#include "DhcpMessage.h"
#include "Db.h"
/**
* The core of the DHCP server.
*
* This class is feed DhcpClientMessages that VBoxNetDhcpd has picked up from
* the network. After processing a message it returns the appropriate response
* (if any) which VBoxNetDhcpd sends out.
*/
class DHCPD
{
/** The DHCP configuration. */
const Config *m_pConfig;
/** The lease database. */
Db m_db;
public:
DHCPD();
int init(const Config *) RT_NOEXCEPT;
DhcpServerMessage *process(const std::unique_ptr<DhcpClientMessage> &req) RT_NOEXCEPT
{
if (req.get() != NULL)
return process(*req.get());
return NULL;
}
DhcpServerMessage *process(DhcpClientMessage &req) RT_NOEXCEPT;
private:
/** @name DHCP message processing methods
* @{ */
DhcpServerMessage *i_doDiscover(const DhcpClientMessage &req);
DhcpServerMessage *i_doRequest(const DhcpClientMessage &req);
DhcpServerMessage *i_doInform(const DhcpClientMessage &req);
DhcpServerMessage *i_doDecline(const DhcpClientMessage &req) RT_NOEXCEPT;
DhcpServerMessage *i_doRelease(const DhcpClientMessage &req) RT_NOEXCEPT;
DhcpServerMessage *i_createMessage(int type, const DhcpClientMessage &req);
/** @} */
/** @name Lease database handling
* @{ */
int i_loadLeases() RT_NOEXCEPT;
void i_saveLeases() RT_NOEXCEPT;
/** @} */
};
#endif /* !VBOX_INCLUDED_SRC_Dhcpd_DHCPD_h */
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