mirror of https://github.com/ShaYmez/xlxd.git
142 lines
4.6 KiB
C++
142 lines
4.6 KiB
C++
//
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// cdmrmmdvmprotocol.h
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// xlxd
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//
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// Created by Jean-Luc Deltombe (LX3JL) on 04/03/2017.
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// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
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//
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// ----------------------------------------------------------------------------
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// This file is part of xlxd.
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//
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// xlxd 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 3 of the License, or
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// (at your option) any later version.
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//
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// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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#ifndef cdmrmmdvmprotocol_h
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#define cdmrmmdvmprotocol_h
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#include "ctimepoint.h"
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#include "cprotocol.h"
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#include "cdvheaderpacket.h"
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#include "cdvframepacket.h"
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#include "cdvlastframepacket.h"
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////////////////////////////////////////////////////////////////////////////////////////
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// define
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// frame type
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#define DMRMMDVM_FRAMETYPE_VOICE 0
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#define DMRMMDVM_FRAMETYPE_VOICESYNC 1
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#define DMRMMDVM_FRAMETYPE_DATASYNC 2
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// slot type
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#define MMDVM_SLOTTYPE_HEADER 1
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#define MMDVM_SLOTTYPE_TERMINATOR 2
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// DMRMMDVM Module ID
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#define MMDVM_MODULE_ID 'B'
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////////////////////////////////////////////////////////////////////////////////////////
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// class
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class CDmrmmdvmStreamCacheItem
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{
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public:
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CDmrmmdvmStreamCacheItem() {}
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~CDmrmmdvmStreamCacheItem() {}
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CDvHeaderPacket m_dvHeader;
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CDvFramePacket m_dvFrame0;
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CDvFramePacket m_dvFrame1;
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uint8 m_uiSeqId;
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};
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class CDmrmmdvmProtocol : public CProtocol
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{
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public:
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// constructor
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CDmrmmdvmProtocol() {};
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// destructor
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virtual ~CDmrmmdvmProtocol() {};
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// initialization
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bool Init(void);
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// task
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void Task(void);
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protected:
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// queue helper
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void HandleQueue(void);
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// keepalive helpers
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void HandleKeepalives(void);
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// stream helpers
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bool OnDvHeaderPacketIn(CDvHeaderPacket *, const CIp &, uint8, uint8);
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// packet decoding helpers
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bool IsValidConnectPacket(const CBuffer &, CCallsign *, const CIp &);
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bool IsValidAuthenticationPacket(const CBuffer &, CCallsign *, const CIp &);
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bool IsValidDisconnectPacket(const CBuffer &, CCallsign *);
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bool IsValidConfigPacket(const CBuffer &, CCallsign *, const CIp &);
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bool IsValidOptionPacket(const CBuffer &, CCallsign *);
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bool IsValidKeepAlivePacket(const CBuffer &, CCallsign *);
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bool IsValidRssiPacket(const CBuffer &, CCallsign *, int *);
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bool IsValidDvHeaderPacket(const CBuffer &, CDvHeaderPacket **, uint8 *, uint8 *);
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bool IsValidDvFramePacket(const CBuffer &, CDvFramePacket **);
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bool IsValidDvLastFramePacket(const CBuffer &, CDvLastFramePacket **);
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// packet encoding helpers
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void EncodeKeepAlivePacket(CBuffer *, CClient *);
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void EncodeAckPacket(CBuffer *, const CCallsign &);
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void EncodeConnectAckPacket(CBuffer *, const CCallsign &, uint32);
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void EncodeNackPacket(CBuffer *, const CCallsign &);
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void EncodeClosePacket(CBuffer *, CClient *);
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bool EncodeDvHeaderPacket(const CDvHeaderPacket &, uint8, CBuffer *) const;
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void EncodeDvPacket(const CDvHeaderPacket &, const CDvFramePacket &, const CDvFramePacket &, const CDvFramePacket &, uint8, CBuffer *) const;
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void EncodeDvLastPacket(const CDvHeaderPacket &, uint8, CBuffer *) const;
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// dmr DstId to Module helper
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char DmrDstIdToModule(uint32) const;
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uint32 ModuleToDmrDestId(char) const;
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// Buffer & LC helpers
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void AppendVoiceLCToBuffer(CBuffer *, uint32) const;
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void AppendTerminatorLCToBuffer(CBuffer *, uint32) const;
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void ReplaceEMBInBuffer(CBuffer *, uint8) const;
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void AppendDmrIdToBuffer(CBuffer *, uint32) const;
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void AppendDmrRptrIdToBuffer(CBuffer *, uint32) const;
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protected:
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// for keep alive
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CTimePoint m_LastKeepaliveTime;
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// for stream id
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uint16 m_uiStreamId;
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// for queue header caches
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std::array<CDmrmmdvmStreamCacheItem, NB_OF_MODULES> m_StreamsCache;
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// for authentication
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uint32 m_uiAuthSeed;
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};
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////////////////////////////////////////////////////////////////////////////////////////
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#endif /* cdmrmmdvmprotocol_h */
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