mirror of https://github.com/nostar/urfd.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.7 KiB
84 lines
2.7 KiB
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
|
|
|
|
// urfd -- The universal reflector
|
|
// Copyright © 2021 Thomas A. Early N7TAE
|
|
//
|
|
// 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, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// 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/>.
|
|
|
|
#pragma once
|
|
|
|
#include "Defines.h"
|
|
#include "Timer.h"
|
|
#include "Protocol.h"
|
|
#include "DVHeaderPacket.h"
|
|
#include "DVFramePacket.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// define
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// class
|
|
|
|
class CDcsStreamCacheItem
|
|
{
|
|
public:
|
|
CDcsStreamCacheItem() : m_iSeqCounter(0) {}
|
|
|
|
CDvHeaderPacket m_dvHeader;
|
|
uint32_t m_iSeqCounter;
|
|
};
|
|
|
|
class CDcsProtocol : public CProtocol
|
|
{
|
|
public:
|
|
// initialization
|
|
bool Initialize(const char *type, const EProtocol ptype, const uint16_t port, const bool has_ipv4, const bool has_ipv6);
|
|
|
|
// task
|
|
void Task(void);
|
|
|
|
protected:
|
|
// queue helper
|
|
void HandleQueue(void);
|
|
|
|
// keepalive helpers
|
|
void HandleKeepalives(void);
|
|
|
|
// stream helpers
|
|
void OnDvHeaderPacketIn(std::unique_ptr<CDvHeaderPacket> &, const CIp &);
|
|
|
|
// packet decoding helpers
|
|
bool IsValidConnectPacket(const CBuffer &, CCallsign *, char *);
|
|
bool IsValidDisconnectPacket(const CBuffer &, CCallsign *);
|
|
bool IsValidKeepAlivePacket(const CBuffer &, CCallsign *);
|
|
bool IsValidDvPacket(const CBuffer &, std::unique_ptr<CDvHeaderPacket> &, std::unique_ptr<CDvFramePacket> &);
|
|
bool IsIgnorePacket(const CBuffer &);
|
|
|
|
// packet encoding helpers
|
|
void EncodeKeepAlivePacket(CBuffer *);
|
|
void EncodeKeepAlivePacket(CBuffer *, std::shared_ptr<CClient>);
|
|
void EncodeConnectAckPacket(const CCallsign &, char, CBuffer *);
|
|
void EncodeConnectNackPacket(const CCallsign &, char, CBuffer *);
|
|
void EncodeDisconnectPacket(CBuffer *, std::shared_ptr<CClient>);
|
|
void EncodeDCSPacket(const CDvHeaderPacket &, const CDvFramePacket &, uint32_t, CBuffer *) const;
|
|
void EncodeLastDCSPacket(const CDvHeaderPacket &, const CDvFramePacket &, uint32_t, CBuffer *) const;
|
|
|
|
protected:
|
|
// for keep alive
|
|
CTimer m_LastKeepaliveTime;
|
|
|
|
// for queue header caches
|
|
std::unordered_map<char, CDcsStreamCacheItem> m_StreamsCache;
|
|
};
|