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218 lines
8.4 KiB
218 lines
8.4 KiB
/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / Host Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2015,2016,2017,2018 by Jonathan Naylor G4KLX
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* Copyright (C) 2020 by Bryan Biedenkapp N2PLL
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#if !defined(__BASE_NETWORK_H__)
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#define __BASE_NETWORK_H__
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#include "Defines.h"
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#include "dmr/DMRDefines.h"
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#include "p25/P25Defines.h"
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#include "dmr/data/Data.h"
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#include "p25/data/LowSpeedData.h"
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#include "p25/dfsi/DFSIDefines.h"
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#include "p25/dfsi/LC.h"
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#include "p25/lc/LC.h"
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#include "p25/lc/TSBK.h"
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#include "p25/lc/TDULC.h"
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#include "p25/Audio.h"
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#include "network/UDPSocket.h"
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#include "RingBuffer.h"
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#include "Timer.h"
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#include <string>
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#include <cstdint>
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#include <random>
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// ---------------------------------------------------------------------------
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// Constants
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// ---------------------------------------------------------------------------
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#define DVM_RAND_MIN 0x00000001
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#define DVM_RAND_MAX 0xfffffffe
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#define TAG_DMR_DATA "DMRD"
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#define TAG_P25_DATA "P25D"
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#define TAG_MASTER_WL_RID "MSTWRID"
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#define TAG_MASTER_BL_RID "MSTBRID"
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#define TAG_MASTER_ACTIVE_TGS "MSTTID"
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#define TAG_MASTER_DEACTIVE_TGS "MSTDTID"
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#define TAG_MASTER_NAK "MSTNAK"
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#define TAG_MASTER_CLOSING "MSTCL"
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#define TAG_MASTER_PONG "MSTPONG"
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#define TAG_REPEATER_LOGIN "RPTL"
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#define TAG_REPEATER_AUTH "RPTK"
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#define TAG_REPEATER_CONFIG "RPTC"
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#define TAG_REPEATER_ACK "RPTACK"
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#define TAG_REPEATER_CLOSING "RPTCL"
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#define TAG_REPEATER_PING "RPTPING"
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#define TAG_TRANSFER_ACT_LOG "TRNSLOG"
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#define TAG_TRANSFER_DIAG_LOG "TRNSDIAG"
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namespace network
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{
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// ---------------------------------------------------------------------------
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// Constants
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// ---------------------------------------------------------------------------
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const uint32_t DATA_PACKET_LENGTH = 8192U;
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const uint32_t DMR_PACKET_SIZE = 55U;
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const uint32_t PACKET_PAD = 8U;
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// ---------------------------------------------------------------------------
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// Network Peer Connection Status
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// ---------------------------------------------------------------------------
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enum NET_CONN_STATUS {
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// Common States
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NET_STAT_WAITING_CONNECT,
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NET_STAT_WAITING_LOGIN,
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NET_STAT_WAITING_AUTHORISATION,
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NET_STAT_WAITING_CONFIG,
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NET_STAT_RUNNING,
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// Master States
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NET_STAT_RPTL_RECEIVED,
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NET_STAT_CHALLENGE_SENT,
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NET_STAT_MST_RUNNING,
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NET_STAT_INVALID = 0x7FFFFFF
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};
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// ---------------------------------------------------------------------------
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// Class Declaration
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// Implements the base networking logic.
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// ---------------------------------------------------------------------------
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class HOST_SW_API BaseNetwork {
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public:
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/// <summary>Initializes a new instance of the BaseNetwork class.</summary>
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BaseNetwork(uint16_t localPort, uint32_t id, bool duplex, bool debug, bool slot1, bool slot2, bool transferActivityLog, bool transferDiagnosticLog);
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/// <summary>Finalizes a instance of the BaseNetwork class.</summary>
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virtual ~BaseNetwork();
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/// <summary>Gets the current status of the network.</summary>
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NET_CONN_STATUS getStatus() { return m_status; }
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/// <summary>Reads DMR frame data from the DMR ring buffer.</summary>
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virtual bool readDMR(dmr::data::Data& data);
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/// <summary>Reads P25 frame data from the P25 ring buffer.</summary>
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virtual uint8_t* readP25(bool& ret, p25::lc::LC& control, p25::data::LowSpeedData& lsd, uint8_t& duid, uint32_t& len);
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/// <summary>Writes DMR frame data to the network.</summary>
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virtual bool writeDMR(const dmr::data::Data& data);
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/// <summary>Writes P25 LDU1 frame data to the network.</summary>
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virtual bool writeP25LDU1(const p25::lc::LC& control, const p25::data::LowSpeedData& lsd, const uint8_t* data);
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/// <summary>Writes P25 LDU2 frame data to the network.</summary>
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virtual bool writeP25LDU2(const p25::lc::LC& control, const p25::data::LowSpeedData& lsd, const uint8_t* data);
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/// <summary>Writes P25 TDU frame data to the network.</summary>
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virtual bool writeP25TDU(const p25::lc::LC& control, const p25::data::LowSpeedData& lsd);
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/// <summary>Writes P25 TSDU frame data to the network.</summary>
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virtual bool writeP25TSDU(const p25::lc::TSBK& control, const uint8_t* data);
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/// <summary>Writes P25 PDU frame data to the network.</summary>
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virtual bool writeP25PDU(const uint32_t llId, const uint8_t dataType, const uint8_t* data, const uint32_t len);
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/// <summary>Writes the local activity log to the network.</summary>
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virtual bool writeActLog(const char* message);
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/// <summary>Writes the local diagnostic logs to the network.</summary>
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virtual bool writeDiagLog(const char* message);
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/// <summary>Updates the timer by the passed number of milliseconds.</summary>
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virtual void clock(uint32_t ms) = 0;
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/// <summary>Opens connection to the network.</summary>
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virtual bool open() = 0;
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/// <summary>Closes connection to the network.</summary>
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virtual void close() = 0;
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/// <summary>Resets the DMR ring buffer for the given slot.</summary>
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virtual void resetDMR(uint32_t slotNo);
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/// <summary>Resets the P25 ring buffer.</summary>
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virtual void resetP25();
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protected:
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uint32_t m_id;
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bool m_slot1;
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bool m_slot2;
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bool m_allowActivityTransfer;
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bool m_allowDiagnosticTransfer;
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bool m_duplex;
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bool m_debug;
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sockaddr_storage m_addr;
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uint32_t m_addrLen;
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UDPSocket m_socket;
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NET_CONN_STATUS m_status;
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Timer m_retryTimer;
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Timer m_timeoutTimer;
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uint8_t* m_buffer;
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uint8_t* m_salt;
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uint32_t* m_streamId;
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uint32_t m_p25StreamId;
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RingBuffer<uint8_t> m_rxDMRData;
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RingBuffer<uint8_t> m_rxP25Data;
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p25::Audio m_audio;
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std::mt19937 m_random;
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/// <summary>Writes DMR frame data to the network.</summary>
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bool writeDMR(const uint32_t id, const uint32_t streamId, const dmr::data::Data& data);
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/// <summary>Writes P25 LDU1 frame data to the network.</summary>
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bool writeP25LDU1(const uint32_t id, const uint32_t streamId, const p25::lc::LC& control, const p25::data::LowSpeedData& lsd, const uint8_t* data);
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/// <summary>Writes P25 LDU2 frame data to the network.</summary>
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bool writeP25LDU2(const uint32_t id, const uint32_t streamId, const p25::lc::LC& control, const p25::data::LowSpeedData& lsd, const uint8_t* data);
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/// <summary>Writes P25 TDU frame data to the network.</summary>
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bool writeP25TDU(const uint32_t id, const uint32_t streamId, const p25::lc::LC& control, const p25::data::LowSpeedData& lsd);
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/// <summary>Writes P25 TSDU frame data to the network.</summary>
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bool writeP25TSDU(const uint32_t id, const uint32_t streamId, const p25::lc::TSBK& control, const uint8_t* data);
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/// <summary>Writes P25 PDU frame data to the network.</summary>
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bool writeP25PDU(const uint32_t id, const uint32_t streamId, const uint32_t llId, const uint8_t dataType, const uint8_t* data, const uint32_t len);
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/// <summary>Writes data to the network.</summary>
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virtual bool write(const uint8_t* data, uint32_t length);
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};
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} // namespace network
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#endif // __BASE_NETWORK_H__
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