| 1 | /* $Id: DHCPD.h 98103 2023-01-17 14:15:46Z 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) 2017-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | #ifndef VBOX_INCLUDED_SRC_Dhcpd_DHCPD_h
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| 29 | #define VBOX_INCLUDED_SRC_Dhcpd_DHCPD_h
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| 30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 31 | # pragma once
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| 32 | #endif
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| 33 |
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| 34 | #include "DhcpdInternal.h"
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| 35 | #include <iprt/cpp/ministring.h>
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| 36 | #include "Config.h"
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| 37 | #include "DhcpMessage.h"
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| 38 | #include "Db.h"
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| 39 |
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| 40 |
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| 41 | /**
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| 42 | * The core of the DHCP server.
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| 43 | *
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| 44 | * This class is feed DhcpClientMessages that VBoxNetDhcpd has picked up from
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| 45 | * the network. After processing a message it returns the appropriate response
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| 46 | * (if any) which VBoxNetDhcpd sends out.
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| 47 | */
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| 48 | class DHCPD
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| 49 | {
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| 50 | /** The DHCP configuration. */
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| 51 | const Config *m_pConfig;
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| 52 | /** The lease database. */
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| 53 | Db m_db;
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| 54 |
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| 55 | public:
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| 56 | DHCPD();
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| 57 |
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| 58 | int init(const Config *) RT_NOEXCEPT;
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| 59 |
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| 60 | DhcpServerMessage *process(const std::unique_ptr<DhcpClientMessage> &req) RT_NOEXCEPT
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| 61 | {
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| 62 | if (req.get() != NULL)
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| 63 | return process(*req.get());
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| 64 | return NULL;
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| 65 | }
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| 66 |
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| 67 | DhcpServerMessage *process(DhcpClientMessage &req) RT_NOEXCEPT;
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| 68 |
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| 69 | private:
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| 70 | /** @name DHCP message processing methods
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| 71 | * @{ */
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| 72 | DhcpServerMessage *i_doDiscover(const DhcpClientMessage &req);
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| 73 | DhcpServerMessage *i_doRequest(const DhcpClientMessage &req);
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| 74 | DhcpServerMessage *i_doInform(const DhcpClientMessage &req);
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| 75 | DhcpServerMessage *i_doDecline(const DhcpClientMessage &req) RT_NOEXCEPT;
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| 76 | DhcpServerMessage *i_doRelease(const DhcpClientMessage &req) RT_NOEXCEPT;
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| 77 |
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| 78 | DhcpServerMessage *i_createMessage(int type, const DhcpClientMessage &req);
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| 79 | /** @} */
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| 80 |
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| 81 | /** @name Lease database handling
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| 82 | * @{ */
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| 83 | int i_loadLeases() RT_NOEXCEPT;
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| 84 | void i_saveLeases() RT_NOEXCEPT;
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| 85 | /** @} */
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| 86 | };
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| 87 |
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| 88 | #endif /* !VBOX_INCLUDED_SRC_Dhcpd_DHCPD_h */
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