| 1 | /* $Id: DHCPD.h 93115 2022-01-01 11:31:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * DHCP server - protocol logic
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2017-2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | #ifndef VBOX_INCLUDED_SRC_Dhcpd_DHCPD_h
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| 19 | #define VBOX_INCLUDED_SRC_Dhcpd_DHCPD_h
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| 20 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 21 | # pragma once
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| 22 | #endif
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| 23 |
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| 24 | #include "DhcpdInternal.h"
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| 25 | #include <iprt/cpp/ministring.h>
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| 26 | #include "Config.h"
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| 27 | #include "DhcpMessage.h"
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| 28 | #include "Db.h"
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| 29 |
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| 30 |
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| 31 | /**
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| 32 | * The core of the DHCP server.
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| 33 | *
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| 34 | * This class is feed DhcpClientMessages that VBoxNetDhcpd has picked up from
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| 35 | * the network. After processing a message it returns the appropriate response
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| 36 | * (if any) which VBoxNetDhcpd sends out.
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| 37 | */
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| 38 | class DHCPD
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| 39 | {
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| 40 | /** The DHCP configuration. */
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| 41 | const Config *m_pConfig;
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| 42 | /** The lease database. */
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| 43 | Db m_db;
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| 44 |
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| 45 | public:
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| 46 | DHCPD();
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| 47 |
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| 48 | int init(const Config *) RT_NOEXCEPT;
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| 49 |
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| 50 | DhcpServerMessage *process(const std::unique_ptr<DhcpClientMessage> &req) RT_NOEXCEPT
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| 51 | {
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| 52 | if (req.get() != NULL)
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| 53 | return process(*req.get());
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| 54 | return NULL;
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| 55 | }
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| 56 |
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| 57 | DhcpServerMessage *process(DhcpClientMessage &req) RT_NOEXCEPT;
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| 58 |
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| 59 | private:
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| 60 | /** @name DHCP message processing methods
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| 61 | * @{ */
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| 62 | DhcpServerMessage *i_doDiscover(const DhcpClientMessage &req);
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| 63 | DhcpServerMessage *i_doRequest(const DhcpClientMessage &req);
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| 64 | DhcpServerMessage *i_doInform(const DhcpClientMessage &req);
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| 65 | DhcpServerMessage *i_doDecline(const DhcpClientMessage &req) RT_NOEXCEPT;
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| 66 | DhcpServerMessage *i_doRelease(const DhcpClientMessage &req) RT_NOEXCEPT;
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| 67 |
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| 68 | DhcpServerMessage *i_createMessage(int type, const DhcpClientMessage &req);
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| 69 | /** @} */
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| 70 |
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| 71 | /** @name Lease database handling
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| 72 | * @{ */
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| 73 | int i_loadLeases() RT_NOEXCEPT;
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| 74 | void i_saveLeases() RT_NOEXCEPT;
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| 75 | /** @} */
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| 76 | };
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| 77 |
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| 78 | #endif /* !VBOX_INCLUDED_SRC_Dhcpd_DHCPD_h */
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