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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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Preamble
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How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
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<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
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Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
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<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
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might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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//
// cbuffer.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 02/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include "cprotocol.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CBuffer::CBuffer(uint8 *buffer, int len)
{
resize(len);
::memcpy(data(), buffer, len);
}
////////////////////////////////////////////////////////////////////////////////////////
// set
void CBuffer::Set(uint8 *buffer, int len)
{
resize(len);
::memcpy(data(), buffer, len);
}
void CBuffer::Set(const char *sz)
{
resize(::strlen(sz)+1);
::strcpy((char *)data(), sz);
}
void CBuffer::Append(uint8 *buffer, int len)
{
int n = (int)size();
resize(n+len);
::memcpy(&(data()[n]), buffer, len);
}
void CBuffer::Append(uint8 ui, int len)
{
int n = (int)size();
resize(n+len);
::memset(&(data()[n]), ui, len);
}
void CBuffer::Append(uint8 ui)
{
int n = (int)size();
resize(n+sizeof(uint8));
::memcpy(&(data()[n]), &ui, sizeof(uint8));
}
void CBuffer::Append(uint16 ui)
{
int n = (int)size();
resize(n+sizeof(uint16));
::memcpy(&(data()[n]), &ui, sizeof(uint16));
}
////////////////////////////////////////////////////////////////////////////////////////
// operation
int CBuffer::Compare(uint8 *buffer, int len) const
{
int result = -1;
if ( size() >= len )
{
result = ::memcmp(data(), buffer, len);
}
return result;
}
int CBuffer::Compare(uint8 *buffer, int off, int len) const
{
int result = -1;
if ( size() >= (off+len) )
{
result = ::memcmp(&(data()[off]), buffer, len);
}
return result;
}
////////////////////////////////////////////////////////////////////////////////////////
// operator
bool CBuffer::operator ==(const CBuffer &Buffer) const
{
if ( size() == Buffer.size() )
{
return (::memcmp((const char *)data(), (const char *)Buffer.data(), size()) == 0);
}
return false;
}
bool CBuffer::operator ==(const char *sz) const
{
if ( size() == ::strlen(sz) )
{
return (::memcmp((const char *)data(), sz, size()) == 0);
}
return false;
}

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//
// cbuffer.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 02/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cbuffer_h
#define cbuffer_h
////////////////////////////////////////////////////////////////////////////////////////
class CBuffer : public std::vector<uint8>
{
public:
// constructor
CBuffer() {};
CBuffer(uint8 *, int);
// destructor
virtual ~CBuffer() {};
// set
void Set(uint8 *, int);
void Set(const char *);
void Append(uint8 *, int);
void Append(uint8, int);
void Append(uint8);
void Append(uint16);
// operation
int Compare(uint8 *, int) const;
int Compare(uint8 *, int, int) const;
// operator
bool operator ==(const CBuffer &) const;
bool operator ==(const char *) const;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cbuffer_h */

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//
// ccallsign.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include <cctype>
#include "ccallsign.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructors
CCallsign::CCallsign()
{
// blank all
::memset(m_Callsign, ' ', sizeof(m_Callsign));
::memset(m_Suffix, ' ', sizeof(m_Suffix));
m_Module = ' ';
}
CCallsign::CCallsign(const char *sz)
{
// blank all
::memset(m_Callsign, ' ', sizeof(m_Callsign));
::memset(m_Suffix, ' ', sizeof(m_Suffix));
m_Module = ' ';
// and copy
::memcpy(m_Callsign, sz, MIN(strlen(sz), sizeof(m_Callsign)-1));
if ( strlen(sz) >= sizeof(m_Callsign) )
{
m_Module = sz[sizeof(m_Callsign)-1];
}
}
CCallsign::CCallsign(const CCallsign &callsign)
{
::memcpy(m_Callsign, callsign.m_Callsign, sizeof(m_Callsign));
::memcpy(m_Suffix, callsign.m_Suffix, sizeof(m_Suffix));
m_Module = callsign.m_Module;
}
////////////////////////////////////////////////////////////////////////////////////////
// status
bool CCallsign::IsValid(void) const
{
bool valid = true;
int i;
// callsign
// first 3 chars are letter or number but cannot be all number
int iNum = 0;
for ( i = 0; i < 3; i++ )
{
valid &= IsLetter(m_Callsign[i]) || IsNumber(m_Callsign[i]);
if ( IsNumber(m_Callsign[i]) )
{
iNum++;
}
}
valid &= (iNum < 3);
// all remaining char are letter, number or space
for ( ; i < CALLSIGN_LEN; i++)
{
valid &= IsLetter(m_Callsign[i]) || IsNumber(m_Callsign[i]) || IsSpace(m_Callsign[i]);
}
// prefix
// all chars are number, uppercase or space
for ( i = 0; i < CALLSUFFIX_LEN; i++ )
{
valid &= IsLetter(m_Suffix[i]) || IsNumber(m_Suffix[i]) || IsSpace(m_Suffix[i]);
}
// module
// is an letter or space
valid &= IsLetter(m_Module) || IsSpace(m_Module);
// done
return valid;
}
bool CCallsign::HasSuffix(void) const
{
bool has = false;
for ( int i = 0; i < CALLSUFFIX_LEN; i++ )
{
has |= (m_Suffix[i] != ' ');
}
return has;
}
////////////////////////////////////////////////////////////////////////////////////////
// set
void CCallsign::SetCallsign(const char *sz)
{
::memset(m_Callsign, ' ', sizeof(m_Callsign));
m_Module = ' ';
::memcpy(m_Callsign, sz, MIN(strlen(sz), sizeof(m_Callsign)-1));
if ( strlen(sz) >= sizeof(m_Callsign) )
{
m_Module = sz[sizeof(m_Callsign)-1];
}
}
void CCallsign::SetCallsign(const uint8 *buffer, int len)
{
::memset(m_Callsign, ' ', sizeof(m_Callsign));
m_Module = ' ';
::memcpy(m_Callsign, buffer, MIN(len, sizeof(m_Callsign)-1));
for ( int i = 0; i < sizeof(m_Callsign); i++ )
{
if ( m_Callsign[i] == 0 )
{
m_Callsign[i] = ' ';
}
}
if ( (len >= sizeof(m_Callsign)) && ((char)buffer[sizeof(m_Callsign)-1] != 0) )
{
m_Module = (char)buffer[sizeof(m_Callsign)-1];
}
}
void CCallsign::SetModule(char c)
{
m_Module = c;
}
void CCallsign::SetSuffix(const char *sz)
{
::memset(m_Suffix, ' ', sizeof(m_Suffix));
::memcpy(m_Suffix, sz, MIN(strlen(sz), sizeof(m_Suffix)));
}
void CCallsign::SetSuffix(const uint8 *buffer, int len)
{
len = MIN(len, sizeof(m_Suffix));
::memset(m_Suffix, ' ', sizeof(m_Suffix));
::memcpy(m_Suffix, buffer, len);
}
////////////////////////////////////////////////////////////////////////////////////////
// modify
void CCallsign::PatchCallsign(int off, const uint8 *patch, int len)
{
if ( off < sizeof(m_Callsign) )
{
::memcpy(m_Callsign, patch, MIN(len, sizeof(m_Callsign) - off));
}
}
////////////////////////////////////////////////////////////////////////////////////////
// get
void CCallsign::GetCallsign(uint8 *buffer) const
{
::memcpy(buffer, m_Callsign, sizeof(m_Callsign));
if ( HasModule() )
{
buffer[sizeof(m_Callsign)-1] = m_Module;
}
}
void CCallsign::GetCallsignString(char *sz) const
{
int i;
for ( i = 0; (i < sizeof(m_Callsign)) && (m_Callsign[i] != ' '); i++ )
{
sz[i] = m_Callsign[i];
}
sz[i] = 0;
}
void CCallsign::GetSuffix(uint8 *buffer) const
{
::memcpy(buffer, m_Suffix, sizeof(m_Suffix));
}
////////////////////////////////////////////////////////////////////////////////////////
// compare
bool CCallsign::HasSameCallsign(const CCallsign &Callsign) const
{
return (::memcmp(m_Callsign, Callsign.m_Callsign, sizeof(m_Callsign)) == 0);
}
bool CCallsign::HasSameModule(const CCallsign &Callsign) const
{
return (m_Module == Callsign.m_Module);
}
////////////////////////////////////////////////////////////////////////////////////////
// operators
bool CCallsign::operator ==(const CCallsign &callsign) const
{
return ((::memcmp(callsign.m_Callsign, m_Callsign, sizeof(m_Callsign)) == 0) &&
(m_Module == callsign.m_Module) &&
(::memcmp(callsign.m_Suffix, m_Suffix, sizeof(m_Suffix)) == 0));
}
CCallsign::operator const char *() const
{
char *sz = (char *)(const char *)m_sz;
// empty
::memset(sz, 0, sizeof(m_sz));
// callsign
sz[CALLSIGN_LEN] = 0;
::memcpy(sz, m_Callsign, sizeof(m_Callsign));
// module
if ( HasModule() )
{
sz[sizeof(m_Callsign)] = m_Module;
}
// suffix
if ( HasSuffix() )
{
::strcat(sz, " / ");
::strncat(sz, m_Suffix, sizeof(m_Suffix));
}
// done
return m_sz;
}
////////////////////////////////////////////////////////////////////////////////////////
// helper
bool CCallsign::IsNumber(char c) const
{
return ((c >= '0') && (c <= '9'));
}
bool CCallsign::IsLetter(char c) const
{
return ((c >= 'A') && (c <= 'Z'));
}
bool CCallsign::IsSpace(char c) const
{
return (c == ' ');
}

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//
// ccallsign.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef ccallsign_h
#define ccallsign_h
////////////////////////////////////////////////////////////////////////////////////////
// define
#define CALLSIGN_LEN 8
#define CALLSUFFIX_LEN 4
////////////////////////////////////////////////////////////////////////////////////////
// class
class CCallsign
{
public:
// contructors
CCallsign();
CCallsign(const char *);
CCallsign(const CCallsign &);
// destructor
virtual ~CCallsign() {};
// status
bool IsValid(void) const;
bool HasSuffix(void) const;
bool HasModule(void) const { return m_Module != ' '; }
// set
void SetCallsign(const char *);
void SetCallsign(const uint8 *, int);
void SetModule(char);
void SetSuffix(const char *);
void SetSuffix(const uint8 *, int);
// modify
void PatchCallsign(int, const uint8 *, int);
// get
void GetCallsign(uint8 *) const;
void GetCallsignString(char *) const;
void GetSuffix(uint8 *) const;
char GetModule(void) const { return m_Module; }
// compare
bool HasSameCallsign(const CCallsign &) const;
bool HasSameModule(const CCallsign &) const;
// operators
bool operator ==(const CCallsign &) const;
operator const char *() const;
protected:
// helper
bool IsNumber(char) const;
bool IsLetter(char) const;
bool IsSpace(char) const;
protected:
// data
char m_Callsign[CALLSIGN_LEN];
char m_Suffix[CALLSUFFIX_LEN];
char m_Module;
char m_sz[CALLSIGN_LEN+CALLSUFFIX_LEN+5];
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* ccallsign_h */

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//
// cclient.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include "cclient.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructors
CClient::CClient()
{
m_ReflectorModule = ' ';
m_ModuleMastered = ' ';
m_LastKeepaliveTime.Now();
m_ConnectTime = std::time(NULL);
m_LastHeardTime = std::time(NULL);
}
CClient::CClient(const CCallsign &callsign, const CIp &ip, char reflectorModule)
{
m_ReflectorModule = reflectorModule;
m_Callsign = callsign;
m_Ip = ip;
m_ModuleMastered = ' ';
m_LastKeepaliveTime.Now();
m_ConnectTime = std::time(NULL);
m_LastHeardTime = std::time(NULL);
}
CClient::CClient(const CClient &client)
{
m_Callsign = client.m_Callsign;
m_Ip = client.m_Ip;
m_ReflectorModule = client.m_ReflectorModule;
m_ModuleMastered = client.m_ModuleMastered;
m_LastKeepaliveTime = client.m_LastKeepaliveTime;
m_ConnectTime = client.m_ConnectTime;
m_LastHeardTime = client.m_LastHeardTime;
}
////////////////////////////////////////////////////////////////////////////////////////
// status
void CClient::Alive(void)
{
m_LastKeepaliveTime.Now();;
}
////////////////////////////////////////////////////////////////////////////////////////
// operators
bool CClient::operator ==(const CClient &client) const
{
return ((client.m_Callsign == m_Callsign) &&
(client.m_Ip == m_Ip));
}
////////////////////////////////////////////////////////////////////////////////////////
// reporting
void CClient::WriteXml(std::ofstream &xmlFile)
{
xmlFile << "<NODE>" << std::endl;
xmlFile << "\t<Callsign>" << m_Callsign << "</Callsign>" << std::endl;
xmlFile << "\t<IP>" << m_Ip << "</IP>" << std::endl;
xmlFile << "\t<LinkedModule>" << m_ReflectorModule << "</LinkedModule>" << std::endl;
xmlFile << "\t<Protocol>" << GetProtocolName() << "</Protocol>" << std::endl;
char mbstr[100];
if (std::strftime(mbstr, sizeof(mbstr), "%A %c", std::localtime(&m_ConnectTime)))
{
xmlFile << "\t<ConnectTime>" << mbstr << "</ConnectTime>" << std::endl;
}
if (std::strftime(mbstr, sizeof(mbstr), "%A %c", std::localtime(&m_LastHeardTime)))
{
xmlFile << "\t<LastHeardTime>" << mbstr << "</LastHeardTime>" << std::endl;
}
xmlFile << "</NODE>" << std::endl;
}
void CClient::GetJsonObject(char *Buffer)
{
char sz[512];
char mbstr[100];
char cs[16];
if (std::strftime(mbstr, sizeof(mbstr), "%A %c", std::localtime(&m_LastHeardTime)))
{
m_Callsign.GetCallsignString(cs);
::sprintf(sz, "{\"callsign\":\"%s\",\"module\":\"%c\",\"linkedto\":\"%c\",\"time\":\"%s\"}",
cs,
m_Callsign.GetModule(),
m_ReflectorModule,
mbstr);
::strcat(Buffer, sz);
}
}

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//
// cclient.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cclient_h
#define cclient_h
#include "ctimepoint.h"
#include "cip.h"
#include "ccallsign.h"
#include "cbuffer.h"
////////////////////////////////////////////////////////////////////////////////////////
//
////////////////////////////////////////////////////////////////////////////////////////
// class
class CClient
{
public:
// constructors
CClient();
CClient(const CCallsign &, const CIp &, char = ' ');
CClient(const CClient &);
// destructor
virtual ~CClient() {};
// operators
bool operator ==(const CClient &) const;
// get
const CCallsign &GetCallsign(void) const { return m_Callsign; }
const CIp &GetIp(void) const { return m_Ip; }
bool HasModule(void) const { return m_Callsign.HasModule(); }
char GetModule(void) const { return m_Callsign.GetModule(); }
char GetReflectorModule(void) const { return m_ReflectorModule; }
// set
void SetModule(char c) { m_Callsign.SetModule(c); }
void SetReflectorModule(char c) { m_ReflectorModule = c; }
// identity
virtual int GetProtocol(void) const { return PROTOCOL_NONE; }
virtual const char *GetProtocolName(void) const { return "none"; }
// status
virtual void Alive(void);
virtual bool IsAlive(void) const { return false; }
virtual bool IsAMaster(void) const { return (m_ModuleMastered != ' '); }
virtual void SetMasterOfModule(char c) { m_ModuleMastered = c; }
virtual void NotAMaster(void) { m_ModuleMastered = ' '; }
virtual void Heard(void) { m_LastHeardTime = std::time(NULL); }
// reporting
virtual void WriteXml(std::ofstream &);
virtual void GetJsonObject(char *);
protected:
// data
CCallsign m_Callsign;
CIp m_Ip;
// linked to
char m_ReflectorModule;
// status
char m_ModuleMastered;
CTimePoint m_LastKeepaliveTime;
std::time_t m_ConnectTime;
std::time_t m_LastHeardTime;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cclient_h */

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//
// cclients.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "creflector.h"
#include "cclients.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CClients::CClients()
{
m_Clients.reserve(100);
}
////////////////////////////////////////////////////////////////////////////////////////
// destructors
CClients::~CClients()
{
m_Mutex.lock();
{
for ( int i = 0; i < m_Clients.size(); i++ )
{
delete m_Clients[i];
}
m_Clients.clear();
}
m_Mutex.unlock();
}
////////////////////////////////////////////////////////////////////////////////////////
// manage Clients
void CClients::AddClient(CClient *client)
{
// first check if client already exists
bool found = false;
for ( int i = 0; (i < m_Clients.size()) && !found; i++ )
{
found = (*client == *m_Clients[i]);
// if found, just do nothing
// so *client keep pointing on a valid object
// on function return
if ( found )
{
// delete new one
delete client;
//std::cout << "Adding existing client " << client->GetCallsign() << " at " << client->GetIp() << std::endl;
}
}
// if not, append to the vector
if ( !found )
{
// grow vector capacity if needed
if ( m_Clients.capacity() == m_Clients.size() )
{
m_Clients.reserve(m_Clients.capacity()+10);
}
// and append
m_Clients.push_back(client);
std::cout << "New client " << client->GetCallsign() << " at " << client->GetIp()
<< " added with protocol " << client->GetProtocol() << std::endl;
// notify
g_Reflector.OnClientsChanged();
}
}
void CClients::RemoveClient(CClient *client)
{
// look for the client
bool found = false;
for ( int i = 0; (i < m_Clients.size()) && !found; i++ )
{
// compare objetc pointers
if ( (m_Clients[i]) == client )
{
// found it !
if ( !m_Clients[i]->IsAMaster() )
{
// remove it
std::cout << "Client " << m_Clients[i]->GetCallsign() << " at " << m_Clients[i]->GetIp()
<< " removed" << std::endl;
delete m_Clients[i];
m_Clients.erase(m_Clients.begin()+i);
found = true;
// notify
g_Reflector.OnClientsChanged();
}
}
}
}
CClient *CClients::GetClient(int i)
{
if ( (i >= 0) && (i < m_Clients.size()) )
{
return m_Clients[i];
}
else
{
return NULL;
}
}
bool CClients::IsClient(CClient *client) const
{
bool found = false;
for ( int i = 0; (i < m_Clients.size()) && !found; i++ )
{
found = (m_Clients[i] == client);
}
return found;
}
////////////////////////////////////////////////////////////////////////////////////////
// find Clients
CClient *CClients::FindClient(const CIp &Ip)
{
CClient *client = NULL;
// find client
for ( int i = 0; (i < m_Clients.size()) && (client == NULL); i++ )
{
if ( m_Clients[i]->GetIp() == Ip )
{
client = m_Clients[i];
}
}
// done
return client;
}
CClient *CClients::FindClient(const CIp &Ip, int Protocol)
{
CClient *client = NULL;
// find client
for ( int i = 0; (i < m_Clients.size()) && (client == NULL); i++ )
{
if ( (m_Clients[i]->GetIp() == Ip) && (m_Clients[i]->GetProtocol() == Protocol))
{
client = m_Clients[i];
}
}
// done
return client;
}
CClient *CClients::FindClient(const CCallsign &Callsign, const CIp &Ip, int Protocol)
{
CClient *client = NULL;
// find client
for ( int i = 0; (i < m_Clients.size()) && (client == NULL); i++ )
{
if ( m_Clients[i]->GetCallsign().HasSameCallsign(Callsign) &&
(m_Clients[i]->GetIp() == Ip) &&
(m_Clients[i]->GetProtocol() == Protocol) )
{
client = m_Clients[i];
}
}
// done
return client;
}
CClient *CClients::FindClient(const CCallsign &Callsign, char module, const CIp &Ip, int Protocol)
{
CClient *client = NULL;
// find client
for ( int i = 0; (i < m_Clients.size()) && (client == NULL); i++ )
{
if ( m_Clients[i]->GetCallsign().HasSameCallsign(Callsign) &&
(m_Clients[i]->GetModule() == module) &&
(m_Clients[i]->GetIp() == Ip) &&
(m_Clients[i]->GetProtocol() == Protocol) )
{
client = m_Clients[i];
}
}
// done
return client;
}
////////////////////////////////////////////////////////////////////////////////////////
// iterate on clients
CClient *CClients::FindNextClient(int Protocol, int *index)
{
CClient *client = NULL;
// find next client
bool found = false;
for ( int i = *index+1; (i < m_Clients.size()) && !found; i++ )
{
if ( m_Clients[i]->GetProtocol() == Protocol )
{
found = true;
client = m_Clients[i];
*index = i;
}
}
return client;
}
////////////////////////////////////////////////////////////////////////////////////////
// reporting
void CClients::WriteXml(std::ofstream &xmlFile)
{
xmlFile << "<CLIENTS>" << std::endl;
for ( int i = 0; i < m_Clients.size(); i++ )
{
m_Clients[i]->WriteXml(xmlFile);
}
xmlFile << "</CLIENTS>" << std::endl;
}

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//
// cclients.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cclients_h
#define cclients_h
#include "cclient.h"
////////////////////////////////////////////////////////////////////////////////////////
// define
////////////////////////////////////////////////////////////////////////////////////////
// class
class CClients
{
public:
// constructors
CClients();
// destructors
virtual ~CClients();
// locks
void Lock(void) { m_Mutex.lock(); }
void Unlock(void) { m_Mutex.unlock(); }
// manage Clients
int GetSize(void) const { return (int)m_Clients.size(); }
void AddClient(CClient *);
void RemoveClient(CClient *);
CClient *GetClient(int);
bool IsClient(CClient *) const;
// find clients
CClient *FindClient(const CIp &);
CClient *FindClient(const CIp &, int);
CClient *FindClient(const CCallsign &, const CIp &, int);
CClient *FindClient(const CCallsign &, char, const CIp &, int);
// iterate on clients
CClient *FindNextClient(int, int*);
// reporting
void WriteXml(std::ofstream &);
protected:
// data
std::mutex m_Mutex;
std::vector<CClient *> m_Clients;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cclients_h */

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//
// cdcsclient.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 07/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cdcsclient.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructors
CDcsClient::CDcsClient()
{
}
CDcsClient::CDcsClient(const CCallsign &callsign, const CIp &ip, char reflectorModule)
: CClient(callsign, ip, reflectorModule)
{
}
CDcsClient::CDcsClient(const CDcsClient &client)
: CClient(client)
{
}
////////////////////////////////////////////////////////////////////////////////////////
// status
bool CDcsClient::IsAlive(void) const
{
return (m_LastKeepaliveTime.DurationSinceNow() < DCS_KEEPALIVE_TIMEOUT);
}

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//
// cdcsclient.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 07/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cdcsclient_h
#define cdcsclient_h
#include "cclient.h"
////////////////////////////////////////////////////////////////////////////////////////
// define
////////////////////////////////////////////////////////////////////////////////////////
// class
class CDcsClient : public CClient
{
public:
// constructors
CDcsClient();
CDcsClient(const CCallsign &, const CIp &, char = ' ');
CDcsClient(const CDcsClient &);
// destructor
virtual ~CDcsClient() {};
// identity
int GetProtocol(void) const { return PROTOCOL_DCS; }
const char *GetProtocolName(void) const { return "DCS"; }
// status
bool IsAlive(void) const;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cdcsclient_h */

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//
// cdcsprotocol.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 07/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include "cdcsclient.h"
#include "cdcsprotocol.h"
#include "creflector.h"
#include "cgatekeeper.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CDcsProtocol::CDcsProtocol()
{
for ( int i = 0; i < m_iSeqCounters.size(); i++ )
{
m_iSeqCounters[i] = 0;
}
}
////////////////////////////////////////////////////////////////////////////////////////
// operation
bool CDcsProtocol::Init(void)
{
bool ok;
// base class
ok = CProtocol::Init();
// update the reflector callsign
m_ReflectorCallsign.PatchCallsign(0, (const uint8 *)"DCS", 3);
// create our socket
ok &= m_Socket.Open(DCS_PORT);
// update time
m_LastKeepaliveTime.Now();
// done
return ok;
}
////////////////////////////////////////////////////////////////////////////////////////
// task
void CDcsProtocol::Task(void)
{
CBuffer Buffer;
CIp Ip;
CCallsign Callsign;
char ToLinkModule;
CDvHeaderPacket *Header;
CDvFramePacket *Frame;
// handle incoming packets
if ( m_Socket.Receive(&Buffer, &Ip, 20) != -1 )
{
// crack the packet
if ( IsValidDvPacket(Buffer, &Header, &Frame) )
{
//std::cout << "DCS DV packet" << std::endl;
// callsign muted?
if ( g_GateKeeper.MayTransmit(Header->GetMyCallsign(), Ip, PROTOCOL_DCS) )
{
// handle it
if ( !OnDvHeaderPacketIn(Header, Ip) )
{
if ( !Frame->IsLastPacket() )
{
//std::cout << "DCS DV frame" << std::endl;
OnDvFramePacketIn(Frame);
}
else
{
//std::cout << "DCS DV last frame" << std::endl;
OnDvLastFramePacketIn((CDvLastFramePacket *)Frame);
}
}
else
{
//std::cout << "DCS DV header:" << std::endl << *Header << std::endl;
delete Frame;
}
}
else
{
delete Header;
delete Frame;
}
}
else if ( IsValidConnectPacket(Buffer, &Callsign, &ToLinkModule) )
{
std::cout << "DCS connect packet for module " << ToLinkModule << " from " << Callsign << " at " << Ip << std::endl;
// callsign authorized?
if ( g_GateKeeper.MayLink(Callsign, Ip, PROTOCOL_DCS) )
{
// acknowledge the request
EncodeConnectAckPacket(Callsign, &Buffer);
m_Socket.Send(Buffer, Ip);
// create the client
CDcsClient *client = new CDcsClient(Callsign, Ip, ToLinkModule);
// and append
g_Reflector.GetClients()->AddClient(client);
g_Reflector.ReleaseClients();
}
else
{
// deny the request
EncodeConnectNackPacket(Callsign, &Buffer);
m_Socket.Send(Buffer, Ip);
}
}
else if ( IsValidDisconnectPacket(Buffer, &Callsign) )
{
std::cout << "DCS disconnect packet from " << Ip << std::endl;
// find client & remove it
CClients *clients = g_Reflector.GetClients();
CClient *client = clients->FindClient(Ip, PROTOCOL_DCS);
if ( client != NULL )
{
clients->RemoveClient(client);
}
g_Reflector.ReleaseClients();
}
else if ( IsValidKeepAlivePacket(Buffer, &Callsign) )
{
//std::cout << "DCS keepalive packet from " << Callsign << " at " << Ip << std::endl;
// find client & keep it alive
CClient *GetClient(const CCallsign &, const CIp &, char, int);
CClient *client = g_Reflector.GetClients()->FindClient(Ip, PROTOCOL_DCS);
if ( client != NULL )
{
client->Alive();
}
g_Reflector.ReleaseClients();
}
else
{
std::cout << "DCS packet (" << Buffer.size() << ")" << std::endl;
}
}
// handle end of streaming timeout
CheckStreamsTimeout();
// handle queue from reflector
HandleQueue();
// keep client alive
if ( m_LastKeepaliveTime.DurationSinceNow() > DCS_KEEPALIVE_PERIOD )
{
// DCS protocol sends and monitors keepalives packets
// event if the client is currently streaming
// so, send keepalives to all
CBuffer keepalive1;
EncodeKeepAlivePacket(&keepalive1);
// iterate on clients
CClients *clients = g_Reflector.GetClients();
int index = -1;
CClient *client = NULL;
while ( (client = clients->FindNextClient(PROTOCOL_DCS, &index)) != NULL )
{
// encode client's specific keepalive packet
CBuffer keepalive2;
EncodeKeepAlivePacket(&keepalive2, client);
// send keepalive
m_Socket.Send(keepalive1, client->GetIp());
m_Socket.Send(keepalive2, client->GetIp());
// is this client busy ?
if ( client->IsAMaster() )
{
// yes, just tickle it
client->Alive();
}
// check it's still with us
else if ( !client->IsAlive() )
{
// no, disconnect
CBuffer disconnect;
EncodeDisconnectPacket(&disconnect, client);
m_Socket.Send(disconnect, client->GetIp());
// remove it
std::cout << "DCS client " << client->GetCallsign() << " keepalive timeout" << std::endl;
clients->RemoveClient(client);
}
}
g_Reflector.ReleaseClients();
// update time
m_LastKeepaliveTime.Now();
}
}
////////////////////////////////////////////////////////////////////////////////////////
// streams helpers
bool CDcsProtocol::OnDvHeaderPacketIn(CDvHeaderPacket *Header, const CIp &Ip)
{
bool newstream = false;
// find the stream
CPacketStream *stream = GetStream(Header->GetStreamId());
if ( stream == NULL )
{
// no stream open yet, open a new one
// find this client
CClient *client = g_Reflector.GetClients()->FindClient(Ip, PROTOCOL_DCS);
if ( client != NULL )
{
// and try to open the stream
if ( (stream = g_Reflector.OpenStream(Header, client)) != NULL )
{
// keep the handle
m_Streams.push_back(stream);
newstream = true;
}
}
// release
g_Reflector.ReleaseClients();
}
else
{
// stream already open
// skip packet, but tickle the stream
stream->Tickle();
// and delete packet
delete Header;
}
// update last heard
g_Reflector.GetUsers()->Hearing(Header->GetMyCallsign(), Header->GetRpt1Callsign());
g_Reflector.ReleaseUsers();
// done
return newstream;
}
////////////////////////////////////////////////////////////////////////////////////////
// queue helper
void CDcsProtocol::HandleQueue(void)
{
m_Queue.Lock();
while ( !m_Queue.empty() )
{
// get the packet
CPacket *packet = m_Queue.front();
m_Queue.pop();
// get our sender's id
int iModId = g_Reflector.GetModuleIndex(packet->GetModuleId());
// check if it's header and update cache
if ( packet->IsDvHeader() )
{
// this relies on queue feeder setting valid module id
m_DvHeadersCache[iModId] = CDvHeaderPacket((const CDvHeaderPacket &)*packet);
m_iSeqCounters[iModId] = 0;
}
else
{
// encode it
CBuffer buffer;
if ( packet->IsDvFrame() )
{
EncodeDvPacket(m_DvHeadersCache[iModId], (const CDvFramePacket &)*packet, m_iSeqCounters[iModId]++, &buffer);
}
else if ( packet->IsLastPacket() )
{
EncodeDvLastPacket(m_DvHeadersCache[iModId], (const CDvFramePacket &)*packet, m_iSeqCounters[iModId]++, &buffer);
}
// send it
if ( buffer.size() > 0 )
{
// and push it to all our clients linked to the module and who are not streaming in
CClients *clients = g_Reflector.GetClients();
int index = -1;
CClient *client = NULL;
while ( (client = clients->FindNextClient(PROTOCOL_DCS, &index)) != NULL )
{
// is this client busy ?
if ( !client->IsAMaster() && (client->GetReflectorModule() == packet->GetModuleId()) )
{
// no, send the packet
m_Socket.Send(buffer, client->GetIp());
}
}
g_Reflector.ReleaseClients();
}
}
// done
delete packet;
}
m_Queue.Unlock();
}
////////////////////////////////////////////////////////////////////////////////////////
// packet decoding helpers
bool CDcsProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *callsign, char *reflectormodule)
{
bool valid = false;
if ( Buffer.size() == 519 )
{
callsign->SetCallsign(Buffer.data(), 8);
callsign->SetModule(Buffer.data()[8]);
*reflectormodule = Buffer.data()[9];
valid = (callsign->IsValid() && std::isupper(*reflectormodule));
}
return valid;
}
bool CDcsProtocol::IsValidDisconnectPacket(const CBuffer &Buffer, CCallsign *callsign)
{
bool valid = false;
if ((Buffer.size() == 11) && (Buffer.data()[9] == ' '))
{
callsign->SetCallsign(Buffer.data(), 8);
callsign->SetModule(Buffer.data()[8]);
valid = callsign->IsValid();
}
else if ((Buffer.size() == 19) && (Buffer.data()[9] == ' ') && (Buffer.data()[10] == 0x00))
{
callsign->SetCallsign(Buffer.data(), 8);
callsign->SetModule(Buffer.data()[8]);
valid = callsign->IsValid();
}
return valid;
}
bool CDcsProtocol::IsValidKeepAlivePacket(const CBuffer &Buffer, CCallsign *callsign)
{
bool valid = false;
if (Buffer.size() == 17)
{
callsign->SetCallsign(Buffer.data(), 8);
valid = callsign->IsValid();
}
return valid;
}
bool CDcsProtocol::IsValidDvPacket(const CBuffer &Buffer, CDvHeaderPacket **header, CDvFramePacket **frame)
{
uint8 tag[] = { '0','0','0','1' };
bool valid = false;
*header = NULL;
*frame = NULL;
if ( (Buffer.size() >= 100) && (Buffer.Compare(tag, sizeof(tag)) == 0) )
{
// get the header
*header = new CDvHeaderPacket((struct dstar_header *)&(Buffer.data()[4]),
*((uint16 *)&(Buffer.data()[43])), 0x80);
// get the frame
if ( ((Buffer.data()[45]) & 0x40) != 0 )
{
// it's the last frame
*frame = new CDvLastFramePacket((struct dstar_dvframe *)&(Buffer.data()[46]),
*((uint16 *)&(Buffer.data()[43])), Buffer.data()[45]);
}
else
{
// it's a regular DV frame
*frame = new CDvFramePacket((struct dstar_dvframe *)&(Buffer.data()[46]),
*((uint16 *)&(Buffer.data()[43])), Buffer.data()[45]);
}
// check validity of packets
if ( !((*header)->IsValid() && (*frame)->IsValid()) )
{
delete *header;
delete *frame;
*header = NULL;
*frame = NULL;
}
else
{
valid = true;
}
}
// done
return valid;
}
////////////////////////////////////////////////////////////////////////////////////////
// packet encoding helpers
void CDcsProtocol::EncodeKeepAlivePacket(CBuffer *Buffer)
{
Buffer->Set(GetReflectorCallsign());
}
void CDcsProtocol::EncodeKeepAlivePacket(CBuffer *Buffer, CClient *Client)
{
Buffer->Set((uint8 *)(const char *)GetReflectorCallsign(), CALLSIGN_LEN-1);
Buffer->Append((uint8)Client->GetReflectorModule());
Buffer->Append((uint8)0);
Buffer->Append((uint8 *)(const char *)Client->GetCallsign(), CALLSIGN_LEN);
Buffer->Append((uint8)Client->GetModule());
Buffer->Append((uint8)0, 4);
}
void CDcsProtocol::EncodeConnectAckPacket(const CCallsign &Callsign, CBuffer *Buffer)
{
uint8 tag[] = { 'E','A','C','K',0x00 };
uint8 cs[CALLSIGN_LEN];
Callsign.GetCallsign(cs);
Buffer->Set(cs, CALLSIGN_LEN-1);
Buffer->Append((uint8)' ');
Buffer->Append((uint8)Callsign.GetModule());
Buffer->Append(tag, sizeof(tag));
}
void CDcsProtocol::EncodeConnectNackPacket(const CCallsign &Callsign, CBuffer *Buffer)
{
uint8 tag[] = { 'E','N','A','K',0x00 };
uint8 cs[CALLSIGN_LEN];
Callsign.GetCallsign(cs);
Buffer->Set(cs, CALLSIGN_LEN-1);
Buffer->Append((uint8)' ');
Buffer->Append((uint8)Callsign.GetModule());
Buffer->Append(tag, sizeof(tag));
}
void CDcsProtocol::EncodeDisconnectPacket(CBuffer *Buffer, CClient *Client)
{
Buffer->Set((uint8 *)(const char *)Client->GetCallsign(), CALLSIGN_LEN-1);
Buffer->Append((uint8)' ');
Buffer->Append((uint8)Client->GetModule());
Buffer->Append((uint8)0x00);
Buffer->Append((uint8 *)(const char *)GetReflectorCallsign(), CALLSIGN_LEN-1);
Buffer->Append((uint8)' ');
Buffer->Append((uint8)0x00);
}
void CDcsProtocol::EncodeDvPacket(const CDvHeaderPacket &Header, const CDvFramePacket &DvFrame, uint32 iSeq, CBuffer *Buffer) const
{
uint8 tag[] = { '0','0','0','1' };
struct dstar_header DstarHeader;
Header.ConvertToDstarStruct(&DstarHeader);
Buffer->Set(tag, sizeof(tag));
Buffer->Append((uint8 *)&DstarHeader, sizeof(struct dstar_header) - sizeof(uint16));
Buffer->Append(DvFrame.GetStreamId());
Buffer->Append((uint8)(DvFrame.GetPacketId() % 21));
Buffer->Append((uint8 *)DvFrame.GetAmbe(), AMBE_SIZE);
Buffer->Append((uint8 *)DvFrame.GetDvData(), DVDATA_SIZE);
Buffer->Append((uint8)((iSeq >> 0) & 0xFF));
Buffer->Append((uint8)((iSeq >> 8) & 0xFF));
Buffer->Append((uint8)((iSeq >> 16) & 0xFF));
Buffer->Append((uint8)0x01);
Buffer->Append((uint8)0x00, 38);
}
void CDcsProtocol::EncodeDvLastPacket(const CDvHeaderPacket &Header, const CDvFramePacket &DvFrame, uint32 iSeq, CBuffer *Buffer) const
{
//uint8 tag[] = { 0x4e,0x8d,0x32,0x88,0x26,0x1a,0x3f,0x61,0xe8,0x55,0x55,0x55 };
EncodeDvPacket(Header, DvFrame, iSeq, Buffer);
(Buffer->data())[45] |= 0x40;
//Buffer->Ser
}

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//
// cdcsprotocol.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 07/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cdcsprotocol_h
#define cdcsprotocol_h
#include "ctimepoint.h"
#include "cprotocol.h"
#include "cdvheaderpacket.h"
#include "cdvframepacket.h"
#include "cdvlastframepacket.h"
////////////////////////////////////////////////////////////////////////////////////////
// define
////////////////////////////////////////////////////////////////////////////////////////
// class
class CDcsProtocol : public CProtocol
{
public:
// constructor
CDcsProtocol();
// destructor
virtual ~CDcsProtocol() {};
// initialization
bool Init(void);
// task
void Task(void);
protected:
// stream helpers
bool OnDvHeaderPacketIn(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 &, CDvHeaderPacket **, CDvFramePacket **);
// packet encoding helpers
void EncodeKeepAlivePacket(CBuffer *);
void EncodeKeepAlivePacket(CBuffer *, CClient *);
void EncodeConnectAckPacket(const CCallsign &, CBuffer *);
void EncodeConnectNackPacket(const CCallsign &, CBuffer *);
void EncodeDisconnectPacket(CBuffer *, CClient *);
void EncodeDvPacket(const CDvHeaderPacket &, const CDvFramePacket &, uint32, CBuffer *) const;
void EncodeDvLastPacket(const CDvHeaderPacket &, const CDvFramePacket &, uint32, CBuffer *) const;
// queue helper
void HandleQueue(void);
protected:
// for keep alive
CTimePoint m_LastKeepaliveTime;
// for queue header caches
std::array<CDvHeaderPacket, NB_OF_MODULES> m_DvHeadersCache;
std::array<uint32, NB_OF_MODULES> m_iSeqCounters;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cdcsprotocol_h */

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//
// cdextraclient.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cdextraclient.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructors
CDextraClient::CDextraClient()
{
}
CDextraClient::CDextraClient(const CCallsign &callsign, const CIp &ip, char reflectorModule)
: CClient(callsign, ip, reflectorModule)
{
}
CDextraClient::CDextraClient(const CDextraClient &client)
: CClient(client)
{
}
////////////////////////////////////////////////////////////////////////////////////////
// status
bool CDextraClient::IsAlive(void) const
{
return (m_LastKeepaliveTime.DurationSinceNow() < DEXTRA_KEEPALIVE_TIMEOUT);
}

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//
// cdextraclient.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cdextraclient_h
#define cdextraclient_h
#include "cclient.h"
////////////////////////////////////////////////////////////////////////////////////////
// define
////////////////////////////////////////////////////////////////////////////////////////
// class
class CDextraClient : public CClient
{
public:
// constructors
CDextraClient();
CDextraClient(const CCallsign &, const CIp &, char = ' ');
CDextraClient(const CDextraClient &);
// destructor
virtual ~CDextraClient() {};
// identity
int GetProtocol(void) const { return PROTOCOL_DEXTRA; }
const char *GetProtocolName(void) const { return "Dextra"; }
// status
bool IsAlive(void) const;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cdextraclient_h */

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//
// cdextraprotocol.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include "cdextraclient.h"
#include "cdextraprotocol.h"
#include "creflector.h"
#include "cgatekeeper.h"
////////////////////////////////////////////////////////////////////////////////////////
// operation
bool CDextraProtocol::Init(void)
{
bool ok;
// base class
ok = CProtocol::Init();
// update the reflector callsign
m_ReflectorCallsign.PatchCallsign(0, (const uint8 *)"XRF", 3);
// create our socket
ok &= m_Socket.Open(DEXTRA_PORT);
// update time
m_LastKeepaliveTime.Now();
// done
return ok;
}
////////////////////////////////////////////////////////////////////////////////////////
// task
void CDextraProtocol::Task(void)
{
CBuffer Buffer;
CIp Ip;
CCallsign Callsign;
char ToLinkModule;
CDvHeaderPacket *Header;
CDvFramePacket *Frame;
CDvLastFramePacket *LastFrame;
// any incoming packet ?
if ( m_Socket.Receive(&Buffer, &Ip, 20) != -1 )
{
// crack the packet
if ( (Frame = IsValidDvFramePacket(Buffer)) != NULL )
{
//std::cout << "DExtra DV frame" << std::endl;
// handle it
OnDvFramePacketIn(Frame);
}
else if ( (Header = IsValidDvHeaderPacket(Buffer)) != NULL )
{
//std::cout << "DExtra DV header:" << std::endl << *Header << std::endl;
// callsign muted?
if ( g_GateKeeper.MayTransmit(Header->GetMyCallsign(), Ip, PROTOCOL_DEXTRA) )
{
// handle it
OnDvHeaderPacketIn(Header, Ip);
}
else
{
delete Header;
}
}
else if ( (LastFrame = IsValidDvLastFramePacket(Buffer)) != NULL )
{
//std::cout << "DExtra DV last frame" << std::endl;
// handle it
OnDvLastFramePacketIn(LastFrame);
}
else if ( IsValidConnectPacket(Buffer, &Callsign, &ToLinkModule) )
{
std::cout << "DExtra connect packet for module " << ToLinkModule << " from " << Callsign << " at " << Ip << std::endl;
// callsign authorized?
if ( g_GateKeeper.MayLink(Callsign, Ip, PROTOCOL_DEXTRA) )
{
// acknowledge the request
EncodeConnectAckPacket(&Buffer);
m_Socket.Send(Buffer, Ip);
// create the client
CDextraClient *client = new CDextraClient(Callsign, Ip, ToLinkModule);
// and append
g_Reflector.GetClients()->AddClient(client);
g_Reflector.ReleaseClients();
}
else
{
// deny the request
EncodeConnectNackPacket(&Buffer);
m_Socket.Send(Buffer, Ip);
}
}
else if ( IsValidDisconnectPacket(Buffer, &Callsign) )
{
std::cout << "DExtra disconnect packet from " << Callsign << " at " << Ip << std::endl;
// find client & remove it
CClients *clients = g_Reflector.GetClients();
CClient *client = clients->FindClient(Callsign, Ip, PROTOCOL_DEXTRA);
if ( client != NULL )
{
clients->RemoveClient(client);
}
g_Reflector.ReleaseClients();
}
else if ( IsValidKeepAlivePacket(Buffer, &Callsign) )
{
//std::cout << "DExtra keepalive packet from " << Callsign << " at " << Ip << std::endl;
// find client & keep it alive
CClient *GetClient(const CCallsign &, const CIp &, char, int);
CClient *client = g_Reflector.GetClients()->FindClient(Callsign, Ip, PROTOCOL_DEXTRA);
if ( client != NULL )
{
client->Alive();
}
g_Reflector.ReleaseClients();
}
else
{
std::cout << "DExtra packet (" << Buffer.size() << ")" << std::endl;
}
}
// handle end of streaming timeout
CheckStreamsTimeout();
// handle queue from reflector
HandleQueue();
// keep client alive
if ( m_LastKeepaliveTime.DurationSinceNow() > DEXTRA_KEEPALIVE_PERIOD )
{
// DExtra protocol sends and monitors keepalives packets
// event if the client is currently streaming
// so, send keepalives to all
CBuffer keepalive;
EncodeKeepAlivePacket(&keepalive);
// iterate on clients
CClients *clients = g_Reflector.GetClients();
int index = -1;
CClient *client = NULL;
while ( (client = clients->FindNextClient(PROTOCOL_DEXTRA, &index)) != NULL )
{
// send keepalive
m_Socket.Send(keepalive, client->GetIp());
// client busy ?
if ( client->IsAMaster() )
{
// yes, just tickle it
client->Alive();
}
// otherwise check if still with us
else if ( !client->IsAlive() )
{
// no, disconnect
CBuffer disconnect;
EncodeDisconnectPacket(&disconnect);
m_Socket.Send(disconnect, client->GetIp());
// remove it
std::cout << "DExtra client " << client->GetCallsign() << " keepalive timeout" << std::endl;
clients->RemoveClient(client);
}
}
g_Reflector.ReleaseClients();
// update time
m_LastKeepaliveTime.Now();
}
}
////////////////////////////////////////////////////////////////////////////////////////
// queue helper
void CDextraProtocol::HandleQueue(void)
{
m_Queue.Lock();
while ( !m_Queue.empty() )
{
// get the packet
CPacket *packet = m_Queue.front();
m_Queue.pop();
// encode it
CBuffer buffer;
if ( EncodeDvPacket(*packet, &buffer) )
{
// and push it to all our clients linked to the module and who are not streaming in
CClients *clients = g_Reflector.GetClients();
int index = -1;
CClient *client = NULL;
while ( (client = clients->FindNextClient(PROTOCOL_DEXTRA, &index)) != NULL )
{
// is this client busy ?
if ( !client->IsAMaster() && (client->GetReflectorModule() == packet->GetModuleId()) )
{
// no, send the packet
m_Socket.Send(buffer, client->GetIp());
}
}
g_Reflector.ReleaseClients();
}
// done
delete packet;
}
m_Queue.Unlock();
}
////////////////////////////////////////////////////////////////////////////////////////
// streams helpers
bool CDextraProtocol::OnDvHeaderPacketIn(CDvHeaderPacket *Header, const CIp &Ip)
{
bool newstream = false;
// find the stream
CPacketStream *stream = GetStream(Header->GetStreamId());
if ( stream == NULL )
{
// no stream open yet, open a new one
// find this client
CClient *client = g_Reflector.GetClients()->FindClient(Ip, PROTOCOL_DEXTRA);
if ( client != NULL )
{
// and try to open the stream
if ( (stream = g_Reflector.OpenStream(Header, client)) != NULL )
{
// keep the handle
m_Streams.push_back(stream);
newstream = true;
}
}
// release
g_Reflector.ReleaseClients();
}
else
{
// stream already open
// skip packet, but tickle the stream
stream->Tickle();
}
// update last heard
g_Reflector.GetUsers()->Hearing(Header->GetMyCallsign(), Header->GetRpt1Callsign());
g_Reflector.ReleaseUsers();
// done
return newstream;
}
////////////////////////////////////////////////////////////////////////////////////////
// packet decoding helpers
bool CDextraProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *callsign, char *reflectormodule)
{
bool valid = false;
if ((Buffer.size() == 11) && (Buffer.data()[9] != ' '))
{
callsign->SetCallsign(Buffer.data(), 8);
callsign->SetModule(Buffer.data()[8]);
*reflectormodule = Buffer.data()[9];
valid = (callsign->IsValid() && std::isupper(*reflectormodule));
}
return valid;
}
bool CDextraProtocol::IsValidDisconnectPacket(const CBuffer &Buffer, CCallsign *callsign)
{
bool valid = false;
if ((Buffer.size() == 11) && (Buffer.data()[9] == ' '))
{
callsign->SetCallsign(Buffer.data(), 8);
callsign->SetModule(Buffer.data()[8]);
valid = callsign->IsValid();
}
return valid;
}
bool CDextraProtocol::IsValidKeepAlivePacket(const CBuffer &Buffer, CCallsign *callsign)
{
bool valid = false;
if (Buffer.size() == 9)
{
callsign->SetCallsign(Buffer.data(), 8);
valid = callsign->IsValid();
}
return valid;
}
CDvHeaderPacket *CDextraProtocol::IsValidDvHeaderPacket(const CBuffer &Buffer)
{
CDvHeaderPacket *header = NULL;
if ( (Buffer.size() == 56) && (Buffer.Compare((uint8 *)"DSVT", 4) == 0) &&
(Buffer.data()[4] == 0x10) && (Buffer.data()[8] == 0x20) )
{
// create packet
header = new CDvHeaderPacket((struct dstar_header *)&(Buffer.data()[15]),
*((uint16 *)&(Buffer.data()[12])), 0x80);
// check validity of packet
if ( !header->IsValid() )
{
delete header;
header = NULL;
}
}
return header;
}
CDvFramePacket *CDextraProtocol::IsValidDvFramePacket(const CBuffer &Buffer)
{
CDvFramePacket *dvframe = NULL;
if ( (Buffer.size() == 27) && (Buffer.Compare((uint8 *)"DSVT", 4) == 0) &&
(Buffer.data()[4] == 0x20) && (Buffer.data()[8] == 0x20) &&
((Buffer.data()[14] & 0x40) == 0) )
{
// create packet
dvframe = new CDvFramePacket((struct dstar_dvframe *)&(Buffer.data()[15]),
*((uint16 *)&(Buffer.data()[12])), Buffer.data()[14]);
// check validity of packet
if ( !dvframe->IsValid() )
{
delete dvframe;
dvframe = NULL;
}
}
return dvframe;
}
CDvLastFramePacket *CDextraProtocol::IsValidDvLastFramePacket(const CBuffer &Buffer)
{
CDvLastFramePacket *dvframe = NULL;
if ( (Buffer.size() == 27) && (Buffer.Compare((uint8 *)"DSVT", 4) == 0) &&
(Buffer.data()[4] == 0x20) && (Buffer.data()[8] == 0x20) &&
((Buffer.data()[14] & 0x40) != 0) )
{
// create packet
dvframe = new CDvLastFramePacket((struct dstar_dvframe *)&(Buffer.data()[15]),
*((uint16 *)&(Buffer.data()[12])), Buffer.data()[14]);
// check validity of packet
if ( !dvframe->IsValid() )
{
delete dvframe;
dvframe = NULL;
}
}
return dvframe;
}
////////////////////////////////////////////////////////////////////////////////////////
// packet encoding helpers
void CDextraProtocol::EncodeKeepAlivePacket(CBuffer *Buffer)
{
Buffer->Set(GetReflectorCallsign());
}
void CDextraProtocol::EncodeConnectAckPacket(CBuffer *Buffer)
{
uint8 tag[] = { 'A','C','K',0 };
Buffer->resize(Buffer->size()-1);
Buffer->Append(tag, sizeof(tag));
}
void CDextraProtocol::EncodeConnectNackPacket(CBuffer *Buffer)
{
uint8 tag[] = { 'N','A','K',0 };
Buffer->resize(Buffer->size()-1);
Buffer->Append(tag, sizeof(tag));
}
void CDextraProtocol::EncodeDisconnectPacket(CBuffer *Buffer)
{
uint8 tag[] = { ' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',0 };
Buffer->Set(tag, sizeof(tag));
}
bool CDextraProtocol::EncodeDvHeaderPacket(const CDvHeaderPacket &Packet, CBuffer *Buffer) const
{
uint8 tag[] = { 'D','S','V','T',0x10,0x00,0x00,0x00,0x20,0x00,0x01,0x02 };
struct dstar_header DstarHeader;
Packet.ConvertToDstarStruct(&DstarHeader);
Buffer->Set(tag, sizeof(tag));
Buffer->Append(Packet.GetStreamId());
Buffer->Append((uint8)0x80);
Buffer->Append((uint8 *)&DstarHeader, sizeof(struct dstar_header));
return true;
}
bool CDextraProtocol::EncodeDvFramePacket(const CDvFramePacket &Packet, CBuffer *Buffer) const
{
uint8 tag[] = { 'D','S','V','T',0x20,0x00,0x00,0x00,0x20,0x00,0x01,0x02 };
Buffer->Set(tag, sizeof(tag));
Buffer->Append(Packet.GetStreamId());
Buffer->Append((uint8)(Packet.GetPacketId() % 21));
Buffer->Append((uint8 *)Packet.GetAmbe(), AMBE_SIZE);
Buffer->Append((uint8 *)Packet.GetDvData(), DVDATA_SIZE);
return true;
}
bool CDextraProtocol::EncodeDvLastFramePacket(const CDvLastFramePacket &Packet, CBuffer *Buffer) const
{
uint8 tag1[] = { 'D','S','V','T',0x20,0x00,0x00,0x00,0x20,0x00,0x01,0x02 };
uint8 tag2[] = { 0x55,0xC8,0x7A,0x00,0x00,0x00,0x00,0x00,0x00,0x25,0x1A,0xC6 };
Buffer->Set(tag1, sizeof(tag1));
Buffer->Append(Packet.GetStreamId());
Buffer->Append((uint8)((Packet.GetPacketId() % 21) | 0x40));
Buffer->Append(tag2, sizeof(tag2));
return true;
}

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//
// cdextraprotocol.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cdextraprotocol_h
#define cdextraprotocol_h
#include "ctimepoint.h"
#include "cprotocol.h"
#include "cdvheaderpacket.h"
#include "cdvframepacket.h"
#include "cdvlastframepacket.h"
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// class
class CDextraProtocol : public CProtocol
{
public:
// constructor
CDextraProtocol() {};
// destructor
virtual ~CDextraProtocol() {};
// initialization
bool Init(void);
// task
void Task(void);
protected:
// queue helper
void HandleQueue(void);
// stream helpers
bool OnDvHeaderPacketIn(CDvHeaderPacket *, const CIp &);
// packet decoding helpers
bool IsValidConnectPacket(const CBuffer &, CCallsign *, char *);
bool IsValidDisconnectPacket(const CBuffer &, CCallsign *);
bool IsValidKeepAlivePacket(const CBuffer &, CCallsign *);
CDvHeaderPacket *IsValidDvHeaderPacket(const CBuffer &);
CDvFramePacket *IsValidDvFramePacket(const CBuffer &);
CDvLastFramePacket *IsValidDvLastFramePacket(const CBuffer &);
// packet encoding helpers
void EncodeKeepAlivePacket(CBuffer *);
void EncodeConnectAckPacket(CBuffer *);
void EncodeConnectNackPacket(CBuffer *);
void EncodeDisconnectPacket(CBuffer *);
bool EncodeDvHeaderPacket(const CDvHeaderPacket &, CBuffer *) const;
bool EncodeDvFramePacket(const CDvFramePacket &, CBuffer *) const;
bool EncodeDvLastFramePacket(const CDvLastFramePacket &, CBuffer *) const;
protected:
// time
CTimePoint m_LastKeepaliveTime;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cdextraprotocol_h */

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//
// cdplusclient.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cdplusclient.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructors
CDplusClient::CDplusClient()
{
}
CDplusClient::CDplusClient(const CCallsign &callsign, const CIp &ip, char reflectorModule)
: CClient(callsign, ip, reflectorModule)
{
}
CDplusClient::CDplusClient(const CDplusClient &client)
: CClient(client)
{
}
////////////////////////////////////////////////////////////////////////////////////////
// status
bool CDplusClient::IsAlive(void) const
{
return (m_LastKeepaliveTime.DurationSinceNow() < DPLUS_KEEPALIVE_TIMEOUT);
}
void CDplusClient::SetMasterOfModule(char c)
{
CClient::SetMasterOfModule(c);
SetReflectorModule(c);
}

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//
// cdplusclient.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cdplusclient_h
#define cdplusclient_h
#include "cclient.h"
////////////////////////////////////////////////////////////////////////////////////////
// define
////////////////////////////////////////////////////////////////////////////////////////
// class
class CDplusClient : public CClient
{
public:
// constructors
CDplusClient();
CDplusClient(const CCallsign &, const CIp &, char = ' ');
CDplusClient(const CDplusClient &);
// destructor
virtual ~CDplusClient() {};
// identity
int GetProtocol(void) const { return PROTOCOL_DPLUS; }
const char *GetProtocolName(void) const { return "Dplus"; }
// status
bool IsAlive(void) const;
void SetMasterOfModule(char);
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cdplusclient_h */

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//
// cdplusprotocol.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include "cdplusclient.h"
#include "cdplusprotocol.h"
#include "creflector.h"
#include "cgatekeeper.h"
////////////////////////////////////////////////////////////////////////////////////////
// operation
bool CDplusProtocol::Init(void)
{
bool ok;
// base class
ok = CProtocol::Init();
// update the reflector callsign
//m_ReflectorCallsign.PatchCallsign(0, (const uint8 *)"REF", 3);
m_ReflectorCallsign.PatchCallsign(0, (const uint8 *)"XRF", 3);
// create our socket
ok &= m_Socket.Open(DPLUS_PORT);
// update time
m_LastKeepaliveTime.Now();
// done
return ok;
}
////////////////////////////////////////////////////////////////////////////////////////
// task
void CDplusProtocol::Task(void)
{
CBuffer Buffer;
CIp Ip;
CCallsign Callsign;
CDvHeaderPacket *Header;
CDvFramePacket *Frame;
CDvLastFramePacket *LastFrame;
// handle incoming packets
if ( m_Socket.Receive(&Buffer, &Ip, 20) != -1 )
{
// crack the packet
if ( (Frame = IsValidDvFramePacket(Buffer)) != NULL )
{
//std::cout << "DPlus DV frame" << std::endl;
// handle it
OnDvFramePacketIn(Frame);
}
else if ( (Header = IsValidDvHeaderPacket(Buffer)) != NULL )
{
//std::cout << "DPlus DV header:" << std::endl << *Header << std::endl;
// callsign muted?
if ( g_GateKeeper.MayTransmit(Header->GetMyCallsign(), Ip, PROTOCOL_DPLUS) )
{
// handle it
OnDvHeaderPacketIn(Header, Ip);
}
else
{
delete Header;
}
}
else if ( (LastFrame = IsValidDvLastFramePacket(Buffer)) != NULL )
{
//std::cout << "DPlus DV last frame" << std::endl;
// handle it
OnDvLastFramePacketIn(LastFrame);
}
else if ( IsValidConnectPacket(Buffer) )
{
std::cout << "DPlus connect request packet from " << Ip << std::endl;
// acknowledge the request
m_Socket.Send(Buffer, Ip);
}
else if ( IsValidLoginPacket(Buffer, &Callsign) )
{
std::cout << "DPlus login packet from " << Callsign << " at " << Ip << std::endl;
// callsign authorized?
if ( g_GateKeeper.MayLink(Callsign, Ip, PROTOCOL_DPLUS) )
{
// acknowledge the request
EncodeLoginAckPacket(&Buffer);
m_Socket.Send(Buffer, Ip);
// create the client
CDplusClient *client = new CDplusClient(Callsign, Ip);
// and append
g_Reflector.GetClients()->AddClient(client);
g_Reflector.ReleaseClients();
}
else
{
// deny the request
EncodeLoginNackPacket(&Buffer);
m_Socket.Send(Buffer, Ip);
}
}
else if ( IsValidDisconnectPacket(Buffer) )
{
std::cout << "DPlus disconnect packet from " << Ip << std::endl;
// find client & remove it
CClients *clients = g_Reflector.GetClients();
CClient *client = clients->FindClient(Ip, PROTOCOL_DPLUS);
if ( client != NULL )
{
clients->RemoveClient(client);
}
g_Reflector.ReleaseClients();
}
else if ( IsValidKeepAlivePacket(Buffer) )
{
//std::cout << "DPlus keepalive packet from " << Ip << std::endl;
// find client & keep it alive
CClient *client = g_Reflector.GetClients()->FindClient(Ip, PROTOCOL_DPLUS);
if ( client != NULL )
{
client->Alive();
}
g_Reflector.ReleaseClients();
}
else
{
std::cout << "DPlus packet (" << Buffer.size() << ")" << std::endl;
}
}
// handle end of streaming timeout
CheckStreamsTimeout();
// handle queue from reflector
HandleQueue();
// keep client alive
if ( m_LastKeepaliveTime.DurationSinceNow() > DPLUS_KEEPALIVE_PERIOD )
{
// send keepalives
CBuffer keepalive;
EncodeKeepAlivePacket(&keepalive);
// iterate on clients
CClients *clients = g_Reflector.GetClients();
int index = -1;
CClient *client = NULL;
while ( (client = clients->FindNextClient(PROTOCOL_DPLUS, &index)) != NULL )
{
// send keepalive
//std::cout << "Sending DPlus packet @ " << client->GetIp() << std::endl;
m_Socket.Send(keepalive, client->GetIp());
// is this client busy ?
if ( client->IsAMaster() )
{
// yes, just tickle it
client->Alive();
}
// check it's still with us
else if ( !client->IsAlive() )
{
// no, disconnect
CBuffer disconnect;
EncodeDisconnectPacket(&disconnect);
m_Socket.Send(disconnect, client->GetIp());
// and remove it
std::cout << "DPlus client " << client->GetCallsign() << " keepalive timeout" << std::endl;
clients->RemoveClient(client);
}
}
g_Reflector.ReleaseClients();
// update time
m_LastKeepaliveTime.Now();
}
}
////////////////////////////////////////////////////////////////////////////////////////
// streams helpers
bool CDplusProtocol::OnDvHeaderPacketIn(CDvHeaderPacket *Header, const CIp &Ip)
{
bool newstream = false;
// find the stream
CPacketStream *stream = GetStream(Header->GetStreamId());
if ( stream == NULL )
{
// no stream open yet, open a new one
// find this client
CClient *client = g_Reflector.GetClients()->FindClient(Ip, PROTOCOL_DPLUS);
if ( client != NULL )
{
// now we know its module, let's update it
if ( !client->HasModule() )
{
client->SetModule(Header->GetRpt1Module());
}
// and try to open the stream
if ( (stream = g_Reflector.OpenStream(Header, client)) != NULL )
{
// keep the handle
m_Streams.push_back(stream);
newstream = true;
}
}
// release
g_Reflector.ReleaseClients();
}
else
{
// stream already open
// skip packet, but tickle the stream
stream->Tickle();
// and delete packet
delete Header;
}
// update last heard
g_Reflector.GetUsers()->Hearing(Header->GetMyCallsign(), Header->GetRpt1Callsign());
g_Reflector.ReleaseUsers();
// done
return newstream;
}
////////////////////////////////////////////////////////////////////////////////////////
// queue helper
void CDplusProtocol::HandleQueue(void)
{
m_Queue.Lock();
while ( !m_Queue.empty() )
{
// get the packet
CPacket *packet = m_Queue.front();
m_Queue.pop();
// encode it
CBuffer buffer;
if ( EncodeDvPacket(*packet, &buffer) )
{
// and push it to all our clients who are not streaming in
// note that for dplus protocol, all stream of all modules are push to all clients
// it's client who decide which stream he's interrrested in
CClients *clients = g_Reflector.GetClients();
int index = -1;
CClient *client = NULL;
while ( (client = clients->FindNextClient(PROTOCOL_DPLUS, &index)) != NULL )
{
// is this client busy ?
if ( !client->IsAMaster() )
{
// no, send the packet
m_Socket.Send(buffer, client->GetIp());
}
}
g_Reflector.ReleaseClients();
}
// done
delete packet;
}
m_Queue.Unlock();
}
////////////////////////////////////////////////////////////////////////////////////////
// packet decoding helpers
bool CDplusProtocol::IsValidConnectPacket(const CBuffer &Buffer)
{
uint8 tag[] = { 0x05,0x00,0x18,0x00,0x01 };
return (Buffer == CBuffer(tag, sizeof(tag)));
}
bool CDplusProtocol::IsValidLoginPacket(const CBuffer &Buffer, CCallsign *Callsign)
{
uint8 Tag[] = { 0x1C,0xC0,0x04,0x00 };
bool valid = false;
if ( (Buffer.size() == 28) &&(::memcmp(Buffer.data(), Tag, sizeof(Tag)) == 0) )
{
Callsign->SetCallsign(&(Buffer.data()[4]), 8);
valid = Callsign->IsValid();
}
return valid;
}
bool CDplusProtocol::IsValidDisconnectPacket(const CBuffer &Buffer)
{
uint8 tag[] = { 0x05,0x00,0x18,0x00,0x00 };
return (Buffer == CBuffer(tag, sizeof(tag)));
}
bool CDplusProtocol::IsValidKeepAlivePacket(const CBuffer &Buffer)
{
uint8 tag[] = { 0x03,0x60,0x00 };
return (Buffer == CBuffer(tag, sizeof(tag)));
}
CDvHeaderPacket *CDplusProtocol::IsValidDvHeaderPacket(const CBuffer &Buffer)
{
CDvHeaderPacket *header = NULL;
if ( (Buffer.size() == 58) &&
(Buffer.data()[0] == 0x3A) && (Buffer.data()[1] == 0x80) &&
(Buffer.Compare((uint8 *)"DSVT", 2, 4) == 0) &&
(Buffer.data()[6] == 0x10) && (Buffer.data()[10] == 0x20) )
{
// create packet
header = new CDvHeaderPacket((struct dstar_header *)&(Buffer.data()[17]),
*((uint16 *)&(Buffer.data()[14])), 0x80);
// check validity of packet
if ( !header->IsValid() )
{
delete header;
header = NULL;
}
}
return header;
}
CDvFramePacket *CDplusProtocol::IsValidDvFramePacket(const CBuffer &Buffer)
{
CDvFramePacket *dvframe = NULL;
if ( (Buffer.size() == 29) &&
(Buffer.data()[0] == 0x1D) && (Buffer.data()[1] == 0x80) &&
(Buffer.Compare((uint8 *)"DSVT", 2, 4) == 0) &&
(Buffer.data()[6] == 0x20) && (Buffer.data()[10] == 0x20) )
{
// create packet
dvframe = new CDvFramePacket((struct dstar_dvframe *)&(Buffer.data()[17]),
*((uint16 *)&(Buffer.data()[14])), Buffer.data()[16]);
// check validity of packet
if ( !dvframe->IsValid() )
{
delete dvframe;
dvframe = NULL;
}
}
return dvframe;
}
CDvLastFramePacket *CDplusProtocol::IsValidDvLastFramePacket(const CBuffer &Buffer)
{
CDvLastFramePacket *dvframe = NULL;
if ( (Buffer.size() == 32) &&
(Buffer.Compare((uint8 *)"DSVT", 2, 4) == 0) &&
(Buffer.data()[0] == 0x20) && (Buffer.data()[1] == 0x80) &&
(Buffer.data()[6] == 0x20) && (Buffer.data()[10] == 0x20) )
{
// create packet
dvframe = new CDvLastFramePacket((struct dstar_dvframe *)&(Buffer.data()[17]),
*((uint16 *)&(Buffer.data()[14])), Buffer.data()[16]);
// check validity of packet
if ( !dvframe->IsValid() )
{
delete dvframe;
dvframe = NULL;
}
}
return dvframe;
}
////////////////////////////////////////////////////////////////////////////////////////
// packet encoding helpers
void CDplusProtocol::EncodeKeepAlivePacket(CBuffer *Buffer)
{
uint8 tag[] = { 0x03,0x60,0x00 };
Buffer->Set(tag, sizeof(tag));
}
void CDplusProtocol::EncodeLoginAckPacket(CBuffer *Buffer)
{
uint8 tag[] = { 0x08,0xC0,0x04,0x00,'O','K','R','W' };
Buffer->Set(tag, sizeof(tag));
}
void CDplusProtocol::EncodeLoginNackPacket(CBuffer *Buffer)
{
uint8 tag[] = { 0x08,0xC0,0x04,0x00,'B','U','S','Y' };
Buffer->Set(tag, sizeof(tag));
}
void CDplusProtocol::EncodeDisconnectPacket(CBuffer *Buffer)
{
uint8 tag[] = { 0x05,0x00,0x18,0x00,0x00 };
Buffer->Set(tag, sizeof(tag));
}
bool CDplusProtocol::EncodeDvHeaderPacket(const CDvHeaderPacket &Packet, CBuffer *Buffer) const
{
uint8 tag[] = { 0x3A,0x80,0x44,0x53,0x56,0x54,0x10,0x00,0x00,0x00,0x20,0x00,0x01,0x02 };
struct dstar_header DstarHeader;
Packet.ConvertToDstarStruct(&DstarHeader);
Buffer->Set(tag, sizeof(tag));
Buffer->Append(Packet.GetStreamId());
Buffer->Append((uint8)0x80);
Buffer->Append((uint8 *)&DstarHeader, sizeof(struct dstar_header));
return true;
}
bool CDplusProtocol::EncodeDvFramePacket(const CDvFramePacket &Packet, CBuffer *Buffer) const
{
uint8 tag[] = { 0x1D,0x80,0x44,0x53,0x56,0x54,0x20,0x00,0x00,0x00,0x20,0x00,0x01,0x02 };
Buffer->Set(tag, sizeof(tag));
Buffer->Append(Packet.GetStreamId());
Buffer->Append((uint8)(Packet.GetPacketId() % 21));
Buffer->Append((uint8 *)Packet.GetAmbe(), AMBE_SIZE);
Buffer->Append((uint8 *)Packet.GetDvData(), DVDATA_SIZE);
return true;
}
bool CDplusProtocol::EncodeDvLastFramePacket(const CDvLastFramePacket &Packet, CBuffer *Buffer) const
{
uint8 tag1[] = { 0x20,0x80,0x44,0x53,0x56,0x54,0x20,0x00,0x81,0x00,0x20,0x00,0x01,0x02 };
uint8 tag2[] = { 0x55,0xC8,0x7A,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x25,0x1A,0xC6 };
Buffer->Set(tag1, sizeof(tag1));
Buffer->Append(Packet.GetStreamId());
Buffer->Append((uint8)((Packet.GetPacketId() % 21) | 0x40));
Buffer->Append(tag2, sizeof(tag2));
return true;
}

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//
// cdplusprotocol.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cdplusprotocol_h
#define cdplusprotocol_h
#include "ctimepoint.h"
#include "cprotocol.h"
#include "cdvheaderpacket.h"
#include "cdvframepacket.h"
#include "cdvlastframepacket.h"
////////////////////////////////////////////////////////////////////////////////////////
// define
////////////////////////////////////////////////////////////////////////////////////////
// class
class CDplusProtocol : public CProtocol
{
public:
// constructor
CDplusProtocol() {};
// destructor
virtual ~CDplusProtocol() {};
// initialization
bool Init(void);
// task
void Task(void);
protected:
// stream helpers
bool OnDvHeaderPacketIn(CDvHeaderPacket *, const CIp &);
// packet decoding helpers
bool IsValidConnectPacket(const CBuffer &);
bool IsValidLoginPacket(const CBuffer &, CCallsign *);
bool IsValidDisconnectPacket(const CBuffer &);
bool IsValidKeepAlivePacket(const CBuffer &);
CDvHeaderPacket *IsValidDvHeaderPacket(const CBuffer &);
CDvFramePacket *IsValidDvFramePacket(const CBuffer &);
CDvLastFramePacket *IsValidDvLastFramePacket(const CBuffer &);
// packet encoding helpers
void EncodeKeepAlivePacket(CBuffer *);
void EncodeLoginAckPacket(CBuffer *);
void EncodeLoginNackPacket(CBuffer *);
void EncodeDisconnectPacket(CBuffer *);
bool EncodeDvHeaderPacket(const CDvHeaderPacket &, CBuffer *) const;
bool EncodeDvFramePacket(const CDvFramePacket &, CBuffer *) const;
bool EncodeDvLastFramePacket(const CDvLastFramePacket &, CBuffer *) const;
// queue helper
void HandleQueue(void);
protected:
// for keep alive
CTimePoint m_LastKeepaliveTime;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cdplusprotocol_h */

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//
// cdvframepacket.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include "cdvframepacket.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CDvFramePacket::CDvFramePacket()
{
::memset(m_uiAmbe, 0, sizeof(m_uiAmbe));
::memset(m_uiDvData, 0, sizeof(m_uiDvData));
}
CDvFramePacket::CDvFramePacket(const struct dstar_dvframe *dvframe, uint16 sid, uint8 pid)
: CPacket(sid, pid)
{
::memcpy(m_uiAmbe, dvframe->AMBE, sizeof(m_uiAmbe));
::memcpy(m_uiDvData, dvframe->DVDATA, sizeof(m_uiDvData));
}
CDvFramePacket::CDvFramePacket(const CDvFramePacket &DvFrame)
: CPacket(DvFrame)
{
::memcpy(m_uiAmbe, DvFrame.m_uiAmbe, sizeof(m_uiAmbe));
::memcpy(m_uiDvData, DvFrame.m_uiDvData, sizeof(m_uiDvData));
}
////////////////////////////////////////////////////////////////////////////////////////
// virtual duplication
CPacket *CDvFramePacket::Duplicate(void) const
{
return new CDvFramePacket(*this);
}
////////////////////////////////////////////////////////////////////////////////////////
// operators
bool CDvFramePacket::operator ==(const CDvFramePacket &DvFrame) const
{
return ( (::memcmp(m_uiAmbe, DvFrame.m_uiAmbe, sizeof(m_uiAmbe)) == 0) &&
(::memcmp(m_uiDvData, DvFrame.m_uiDvData, sizeof(m_uiDvData)) == 0) );
}

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//
// cdvframepacket.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cdvframepacket_h
#define cdvframepacket_h
#include "cpacket.h"
////////////////////////////////////////////////////////////////////////////////////////
// defines
#define AMBE_SIZE 9
#define DVDATA_SIZE 3
// typedef & structures
struct __attribute__ ((__packed__))dstar_dvframe
{
uint8 AMBE[AMBE_SIZE];
uint8 DVDATA[DVDATA_SIZE];
};
////////////////////////////////////////////////////////////////////////////////////////
// class
class CDvFramePacket : public CPacket
{
public:
// constructor
CDvFramePacket();
CDvFramePacket(const struct dstar_dvframe *, uint16 = 0, uint8 = 0);
CDvFramePacket(const CDvFramePacket &);
// destructor
virtual ~CDvFramePacket() {};
// virtual duplication
CPacket *Duplicate(void) const;
// identity
bool IsDvFrame(void) const { return true; }
// get
const uint8 *GetAmbe(void) const { return m_uiAmbe; }
const uint8 *GetDvData(void) const { return m_uiDvData; }
// operators
bool operator ==(const CDvFramePacket &) const;
protected:
// data
uint8 m_uiAmbe[AMBE_SIZE];
uint8 m_uiDvData[DVDATA_SIZE];
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cdvframepacket_h */

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//
// cdvheaderpacket.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include <cstdio>
#include "cdvheaderpacket.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CDvHeaderPacket::CDvHeaderPacket()
{
m_uiFlag1 = 0;
m_uiFlag2 = 0;
m_uiFlag3 = 0;
m_uiCrc = 0;
}
CDvHeaderPacket::CDvHeaderPacket(const struct dstar_header *buffer, uint16 sid, uint8 pid)
: CPacket(sid, pid)
{
m_uiFlag1 = buffer->Flag1;
m_uiFlag2 = buffer->Flag2;
m_uiFlag3 = buffer->Flag3;
m_csUR.SetCallsign(buffer->UR, CALLSIGN_LEN);
m_csRPT1.SetCallsign(buffer->RPT1, CALLSIGN_LEN);
m_csRPT2.SetCallsign(buffer->RPT2, CALLSIGN_LEN);
m_csMY.SetCallsign(buffer->MY, CALLSIGN_LEN);
m_csMY.SetSuffix(buffer->SUFFIX, CALLSUFFIX_LEN);
m_uiCrc = buffer->Crc;
}
CDvHeaderPacket::CDvHeaderPacket(const CDvHeaderPacket &Header)
: CPacket(Header)
{
m_uiFlag1 = Header.m_uiFlag1;
m_uiFlag2 = Header.m_uiFlag2;
m_uiFlag3 = Header.m_uiFlag3;
m_csUR = Header.m_csUR;
m_csRPT1 = Header.m_csRPT1;
m_csRPT2 = Header.m_csRPT2;
m_csMY = Header.m_csMY;
m_uiCrc = Header.m_uiCrc;
}
////////////////////////////////////////////////////////////////////////////////////////
// virtual duplication
CPacket *CDvHeaderPacket::Duplicate(void) const
{
return new CDvHeaderPacket(*this);
}
////////////////////////////////////////////////////////////////////////////////////////
// conversion
void CDvHeaderPacket::ConvertToDstarStruct(struct dstar_header *buffer) const
{
::memset(buffer, 0, sizeof(struct dstar_header));
buffer->Flag1 = m_uiFlag1;
buffer->Flag2 = m_uiFlag2;
buffer->Flag3 = m_uiFlag3;
m_csUR.GetCallsign(buffer->UR);
m_csRPT1.GetCallsign(buffer->RPT1);
m_csRPT2.GetCallsign(buffer->RPT2);
m_csMY.GetCallsign(buffer->MY);
m_csMY.GetSuffix(buffer->SUFFIX);
buffer->Crc = m_uiCrc;
}
////////////////////////////////////////////////////////////////////////////////////////
// get valid
bool CDvHeaderPacket::IsValid(void) const
{
bool valid = CPacket::IsValid();
valid &= m_csRPT1.IsValid();
valid &= m_csRPT2.IsValid();
valid &= m_csMY.IsValid();
return valid;
}
////////////////////////////////////////////////////////////////////////////////////////
// operators
bool CDvHeaderPacket::operator ==(const CDvHeaderPacket &Header) const
{
return ( (m_uiFlag1 == Header.m_uiFlag1) &&
(m_uiFlag2 == Header.m_uiFlag2) &&
(m_uiFlag3 == Header.m_uiFlag3) &&
(m_csUR == Header.m_csUR) &&
(m_csRPT1 == Header.m_csRPT1) &&
(m_csRPT2 == Header.m_csRPT2) &&
(m_csMY == Header.m_csMY) );
}
#ifdef IMPLEMENT_CDVHEADERPACKET_CONST_CHAR_OPERATOR
CDvHeaderPacket::operator const char *() const
{
char *sz = (char *)(const char *)m_sz;
std::sprintf(sz, "%02X %02X %02X\n%s\n%s\n%s\n%s",
m_uiFlag1, m_uiFlag2, m_uiFlag3,
(const char *)m_csUR,
(const char *)m_csRPT1,
(const char *)m_csRPT2,
(const char *)m_csMY);
return m_sz;
}
#endif

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//
// cdvheaderpacket.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cdvheaderpacket_h
#define cdvheaderpacket_h
#include "ccallsign.h"
#include "cpacket.h"
////////////////////////////////////////////////////////////////////////////////////////
// implementation details
//#define IMPLEMENT_CDVHEADERPACKET_CONST_CHAR_OPERATOR
////////////////////////////////////////////////////////////////////////////////////////
// typedef & structures
struct __attribute__ ((__packed__))dstar_header
{
// flags
uint8 Flag1;
uint8 Flag2;
uint8 Flag3;
// callsigns
uint8 RPT2[CALLSIGN_LEN];
uint8 RPT1[CALLSIGN_LEN];
uint8 UR[CALLSIGN_LEN];
uint8 MY[CALLSIGN_LEN];
uint8 SUFFIX[CALLSUFFIX_LEN];
// crc
uint16 Crc;
};
////////////////////////////////////////////////////////////////////////////////////////
// class
class CDvHeaderPacket : public CPacket
{
public:
// constructor
CDvHeaderPacket();
CDvHeaderPacket(const struct dstar_header *, uint16 = 0, uint8 = 0);
CDvHeaderPacket(const CDvHeaderPacket &);
// destructor
virtual ~CDvHeaderPacket(){};
// virtual duplication
CPacket *Duplicate(void) const;
// identity
bool IsDvHeader(void) const { return true; }
// conversion
void ConvertToDstarStruct(struct dstar_header *) const;
// get valid
bool IsValid(void) const;
// get callsigns
const CCallsign &GetUrCallsign(void) const { return m_csUR; }
const CCallsign &GetRpt1Callsign(void) const { return m_csRPT1; }
const CCallsign &GetRpt2Callsign(void) const { return m_csRPT2; }
const CCallsign &GetMyCallsign(void) const { return m_csMY; }
// get modules
char GetUrModule(void) const { return m_csUR.GetModule(); }
char GetRpt1Module(void) const { return m_csRPT1.GetModule(); }
char GetRpt2Module(void) const { return m_csRPT2.GetModule(); }
char GetMyModule(void) const { return m_csMY.GetModule(); }
// set callsigns
void SetRpt2Callsign(const CCallsign &cs) { m_csRPT2 = cs; }
// operators
bool operator ==(const CDvHeaderPacket &) const;
#ifdef IMPLEMENT_CDVHEADERPACKET_CONST_CHAR_OPERATOR
operator const char *() const;
#endif
protected:
// data
uint8 m_uiFlag1;
uint8 m_uiFlag2;
uint8 m_uiFlag3;
CCallsign m_csUR;
CCallsign m_csRPT1;
CCallsign m_csRPT2;
CCallsign m_csMY;
uint16 m_uiCrc;
#ifdef IMPLEMENT_CDVHEADERPACKET_CONST_CHAR_OPERATOR
// buffer
char m_sz[32];
#endif
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cdvheaderpacket_h */

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//
// cdvlastframepacket.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 03/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cdvlastframepacket.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CDvLastFramePacket::CDvLastFramePacket()
{
}
CDvLastFramePacket::CDvLastFramePacket(const struct dstar_dvframe *DvFrame, uint16 sid, uint8 pid)
: CDvFramePacket(DvFrame, sid, pid)
{
}
CDvLastFramePacket::CDvLastFramePacket(const CDvLastFramePacket &DvFrame)
: CDvFramePacket(DvFrame)
{
}
////////////////////////////////////////////////////////////////////////////////////////
// virtual duplication
CPacket *CDvLastFramePacket::Duplicate(void) const
{
return new CDvLastFramePacket(*this);
}

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//
// cdvlastframepacket.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 03/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cdvlastframepacket_h
#define cdvlastframepacket_h
#include "cdvframepacket.h"
////////////////////////////////////////////////////////////////////////////////////////
// defines
////////////////////////////////////////////////////////////////////////////////////////
// class
class CDvLastFramePacket : public CDvFramePacket
{
public:
// constructor
CDvLastFramePacket();
CDvLastFramePacket(const struct dstar_dvframe *, uint16 = 0, uint8 = 0);
CDvLastFramePacket(const CDvLastFramePacket &);
// destructor
virtual ~CDvLastFramePacket() {};
// virtual duplication
CPacket *Duplicate(void) const;
// identity
bool IsLastPacket(void) const { return true; }
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cdvlastframepacket_h */

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//
// cgatekeeper.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 07/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "cgatekeeper.h"
CGateKeeper g_GateKeeper;

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//
// cgatekeeper.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 07/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cgatekeeper_h
#define cgatekeeper_h
#include "main.h"
#include "ccallsign.h"
#include "cip.h"
////////////////////////////////////////////////////////////////////////////////////////
// class
class CGateKeeper
{
public:
// constructor
CGateKeeper() {}
// destructor
~CGateKeeper() {}
// operation
bool MayLink(const CCallsign &, const CIp &, int) { return true; }
bool MayTransmit(const CCallsign &, const CIp &, int) { return true; }
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cgatekeeper_h */

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//
// cip.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include <arpa/inet.h>
#include "cip.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructors
CIp::CIp()
{
::memset(&m_Addr, 0, sizeof(m_Addr));
}
CIp::CIp(const char *sz)
{
::memset(&m_Addr, 0, sizeof(m_Addr));
m_Addr.sin_addr.s_addr = inet_addr(sz);
}
CIp::CIp(const struct sockaddr_in *sa)
{
::memcpy(&m_Addr, sa, sizeof(m_Addr));
}
CIp::CIp(const CIp &ip)
{
::memcpy(&m_Addr, &ip.m_Addr, sizeof(m_Addr));
}
////////////////////////////////////////////////////////////////////////////////////////
// set
void CIp::SetSockAddr(struct sockaddr_in *sa)
{
::memcpy(&m_Addr, sa, sizeof(m_Addr));
}
////////////////////////////////////////////////////////////////////////////////////////
// operator
bool CIp::operator ==(const CIp &ip) const
{
return ( (ip.m_Addr.sin_family == m_Addr.sin_family) &&
(ip.m_Addr.sin_addr.s_addr == m_Addr.sin_addr.s_addr)) ;
}
CIp::operator const char *() const
{
return ::inet_ntoa(m_Addr.sin_addr);
}

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//
// cip.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cip_h
#define cip_h
////////////////////////////////////////////////////////////////////////////////////////
// class
class CIp
{
public:
// constructors
CIp();
//CIp(uint8, uint8, uint8, uint8);
CIp(const struct sockaddr_in *);
CIp(const char *);
CIp(const CIp &);
// destructor
virtual ~CIp() {};
// sockaddr
void SetSockAddr(struct sockaddr_in *);
struct sockaddr_in *GetSockAddr(void) { return &m_Addr; }
// operator
bool operator ==(const CIp &) const;
operator const char *() const;
protected:
// data
struct sockaddr_in m_Addr;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cip_h */

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//
// cnotification.cpp
// xlxd
//
// Created by Jean-Luc on 05/12/2015.
// Copyright © 2015 Jean-Luc. All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cnotification.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CNotification::CNotification()
{
// init variables
m_iId = NOTIFICATION_NONE;
}
CNotification::CNotification(const CNotification &Notification)
{
m_iId = Notification.m_iId;
m_Callsign = Notification.m_Callsign;
}
CNotification::CNotification(int iId)
{
m_iId = iId;
}
CNotification::CNotification(int iId, const CCallsign &Callsign)
{
m_iId = iId;
m_Callsign = Callsign;
}

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//
// cnotification.h
// xlxd
//
// Created by Jean-Luc on 05/12/2015.
// Copyright © 2015 Jean-Luc. All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cnotification_h
#define cnotification_h
#include "ccallsign.h"
////////////////////////////////////////////////////////////////////////////////////////
// Id
#define NOTIFICATION_NONE 0
#define NOTIFICATION_CLIENTS 1
#define NOTIFICATION_USERS 2
#define NOTIFICATION_STREAM_OPEN 3
#define NOTIFICATION_STREAM_CLOSE 4
////////////////////////////////////////////////////////////////////////////////////////
// class
class CNotification
{
public:
// constructor
CNotification();
CNotification(const CNotification &);
CNotification(int);
CNotification(int, const CCallsign &);
// destructor
~CNotification() {};
// get
int GetId(void) const { return m_iId; }
const CCallsign &GetCallsign(void) const { return m_Callsign; }
protected:
// data
int m_iId;
CCallsign m_Callsign;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cnotification_h */

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//
// cnotificationqueue.h
// xlxd
//
// Created by Jean-Luc on 05/12/2015.
// Copyright © 2015 Jean-Luc. All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cnotificationqueue_h
#define cnotificationqueue_h
#include "cnotification.h"
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// class
class CNotificationQueue : public std::queue<CNotification>
{
public:
// constructor
CNotificationQueue() {};
// destructor
~CNotificationQueue() {};
// lock
void Lock() { m_Mutex.lock(); }
void Unlock() { m_Mutex.unlock(); }
protected:
// data
std::mutex m_Mutex;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cnotificationqueue_h */

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//
// cpacket.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 04/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cpacket.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CPacket::CPacket()
{
m_uiStreamId = 0;
m_uiPacketId = 0;
m_uiModuleId = ' ';
};
CPacket::CPacket(uint16 sid, uint8 pid)
{
m_uiStreamId = sid;
m_uiPacketId = pid;
m_uiModuleId = ' ';
};
////////////////////////////////////////////////////////////////////////////////////////
// virtual duplication
CPacket *CPacket::Duplicate(void) const
{
return new CPacket(*this);
}

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//
// cpacket.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cpacket_h
#define cpacket_h
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// class
class CPacket
{
public:
// constructor
CPacket();
CPacket(uint16 sid, uint8 pid);
// destructor
virtual ~CPacket() {};
// virtual duplication
virtual CPacket *Duplicate(void) const;
// identity
virtual bool IsDvHeader(void) const { return false; }
virtual bool IsDvFrame(void) const { return false; }
virtual bool IsLastPacket(void) const { return false; }
// get
virtual bool IsValid(void) const { return true; }
uint16 GetStreamId(void) const { return m_uiStreamId; }
uint8 GetPacketId(void) const { return m_uiPacketId; }
uint8 GetModuleId(void) const { return m_uiModuleId; }
// set
void SetModuleId(uint8 uiId) { m_uiModuleId = uiId; }
protected:
// data
uint16 m_uiStreamId;
uint8 m_uiPacketId;
uint8 m_uiModuleId;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cpacket_h */

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//
// cpacketqueue.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 02/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cpacketqueue_h
#define cpacketqueue_h
#include "cpacket.h"
#include "cclient.h"
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// CPacketQueue
class CPacketQueue : public std::queue<CPacket *>
{
public:
// constructor
CPacketQueue() {};
// destructor
~CPacketQueue() {};
// lock
void Lock() { m_Mutex.lock(); }
void Unlock() { m_Mutex.unlock(); }
protected:
// status
bool m_bOpen;
uint16 m_uiStreamId;
std::mutex m_Mutex;
// owner
CClient *m_Client;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cpacketqueue_h */

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//
// cpacketstream.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 06/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cpacketstream.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CPacketStream::CPacketStream()
{
m_bOpen = false;
m_uiStreamId = 0;
m_OwnerClient = NULL;
}
////////////////////////////////////////////////////////////////////////////////////////
// open / close
bool CPacketStream::Open(const CDvHeaderPacket &DvHeader, CClient *client)
{
bool ok = false;
// not already open?
if ( !m_bOpen )
{
// update status
m_bOpen = true;
m_uiStreamId = DvHeader.GetStreamId();
m_DvHeader = DvHeader;
m_OwnerClient = client;
m_LastPacketTime.Now();
ok = true;
}
return ok;
}
void CPacketStream::Close(void)
{
// update status
m_bOpen = false;
m_uiStreamId = 0;
m_OwnerClient = NULL;
}
////////////////////////////////////////////////////////////////////////////////////////
// push & pop
void CPacketStream::Push(CPacket *Packet)
{
m_LastPacketTime.Now();
push(Packet);
}

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//
// cpacketstream.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 06/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cpacketstream_h
#define cpacketstream_h
#include "cpacketqueue.h"
#include "ctimepoint.h"
#include "cdvheaderpacket.h"
////////////////////////////////////////////////////////////////////////////////////////
#define STREAM_TIMEOUT (0.200)
////////////////////////////////////////////////////////////////////////////////////////
// class
class CPacketStream : public CPacketQueue
{
public:
// constructor
CPacketStream();
// destructor
virtual ~CPacketStream() {};
// open / close
bool Open(const CDvHeaderPacket &, CClient *);
void Close(void);
// push & pop
void Push(CPacket *);
void Tickle(void) { m_LastPacketTime.Now(); }
// get
CClient *GetOwnerClient(void) { return m_OwnerClient; }
bool IsExpired(void) const { return (m_LastPacketTime.DurationSinceNow() > STREAM_TIMEOUT); }
uint16 GetStreamId(void) const { return m_uiStreamId; }
const CCallsign &GetUserCallsign(void) const { return m_DvHeader.GetMyCallsign(); }
protected:
// data
bool m_bOpen;
uint16 m_uiStreamId;
CClient *m_OwnerClient;
CTimePoint m_LastPacketTime;
CDvHeaderPacket m_DvHeader;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cpacketstream_h */

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//
// cprotocol.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cprotocol.h"
#include "cclients.h"
#include "creflector.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CProtocol::CProtocol()
{
m_bStopThread = false;
m_pThread = NULL;
m_Streams.reserve(NB_OF_MODULES);
}
////////////////////////////////////////////////////////////////////////////////////////
// destructor
CProtocol::~CProtocol()
{
// kill threads
m_bStopThread = true;
if ( m_pThread != NULL )
{
m_pThread->join();
delete m_pThread;
}
// empty queue
m_Queue.Lock();
while ( !m_Queue.empty() )
{
m_Queue.pop();
}
m_Queue.Unlock();
}
////////////////////////////////////////////////////////////////////////////////////////
// initialization
bool CProtocol::Init(void)
{
// init reflector apparent callsign
m_ReflectorCallsign = g_Reflector.GetCallsign();
// reset stop flag
m_bStopThread = false;
// start thread;
m_pThread = new std::thread(CProtocol::Thread, this);
// done
return true;
}
void CProtocol::Close(void)
{
m_bStopThread = true;
if ( m_pThread != NULL )
{
m_pThread->join();
delete m_pThread;
m_pThread = NULL;
}
}
////////////////////////////////////////////////////////////////////////////////////////
// thread
void CProtocol::Thread(CProtocol *This)
{
while ( !This->m_bStopThread )
{
This->Task();
}
}
////////////////////////////////////////////////////////////////////////////////////////
// packet encoding helpers
bool CProtocol::EncodeDvPacket(const CPacket &packet, CBuffer *buffer) const
{
bool ok = false;
if ( packet.IsDvFrame() )
{
if ( packet.IsLastPacket() )
{
ok = EncodeDvLastFramePacket((const CDvLastFramePacket &)packet, buffer);
}
else
{
ok = EncodeDvFramePacket((const CDvFramePacket &)packet, buffer);
}
}
else if ( packet.IsDvHeader() )
{
ok = EncodeDvHeaderPacket((const CDvHeaderPacket &)packet, buffer);
}
else
{
buffer->clear();
}
return ok;
}
////////////////////////////////////////////////////////////////////////////////////////
// streams helpers
void CProtocol::OnDvFramePacketIn(CDvFramePacket *Frame)
{
// find the stream
CPacketStream *stream = GetStream(Frame->GetStreamId());
if ( stream != NULL )
{
//std::cout << "DV frame" << std::endl;
// and push
stream->Lock();
stream->Push(Frame);
stream->Unlock();
}
}
void CProtocol::OnDvLastFramePacketIn(CDvLastFramePacket *Frame)
{
// find the stream
CPacketStream *stream = GetStream(Frame->GetStreamId());
if ( stream != NULL )
{
// push
stream->Lock();
stream->Push(Frame);
stream->Unlock();
// and close the stream
g_Reflector.CloseStream(stream);
}
}
////////////////////////////////////////////////////////////////////////////////////////
// stream handle helpers
CPacketStream *CProtocol::GetStream(uint16 uiStreamId)
{
CPacketStream *stream = NULL;
for ( int i = 0; (i < m_Streams.size()) && (stream == NULL); i++ )
{
if ( m_Streams[i]->GetStreamId() == uiStreamId )
{
stream = m_Streams[i];
}
}
return stream;
}
void CProtocol::CheckStreamsTimeout(void)
{
for ( int i = 0; i < m_Streams.size(); i++ )
{
// time out ?
m_Streams[i]->Lock();
if ( m_Streams[i]->IsExpired() )
{
// yes, close it
m_Streams[i]->Unlock();
g_Reflector.CloseStream(m_Streams[i]);
// and remove it
m_Streams.erase(m_Streams.begin()+i);
}
else
{
m_Streams[i]->Unlock();
}
}
}
////////////////////////////////////////////////////////////////////////////////////////
// queue helper
void CProtocol::HandleQueue(void)
{
// the default protocol just keep queue empty
m_Queue.Lock();
while ( !m_Queue.empty() )
{
delete m_Queue.front();
m_Queue.pop();
}
m_Queue.Unlock();
}

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//
// cprotocol.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cprotocol_h
#define cprotocol_h
#include "cudpsocket.h"
#include "cpacketstream.h"
#include "cdvheaderpacket.h"
#include "cdvframepacket.h"
#include "cdvlastframepacket.h"
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// class
class CProtocol
{
public:
// constructor
CProtocol();
// destructor
virtual ~CProtocol();
// initialization
virtual bool Init(void);
virtual void Close(void);
// queue
CPacketQueue *GetQueue(void) { m_Queue.Lock(); return &m_Queue; }
void ReleaseQueue(void) { m_Queue.Unlock(); }
// get
const CCallsign &GetReflectorCallsign(void)const { return m_ReflectorCallsign; }
// task
static void Thread(CProtocol *);
virtual void Task(void) {};
protected:
// packet encoding helpers
virtual bool EncodeDvPacket(const CPacket &, CBuffer *) const;
virtual bool EncodeDvHeaderPacket(const CDvHeaderPacket &, CBuffer *) const { return false; }
virtual bool EncodeDvFramePacket(const CDvFramePacket &, CBuffer *) const { return false; }
virtual bool EncodeDvLastFramePacket(const CDvLastFramePacket &, CBuffer *) const { return false; }
// stream helpers
virtual bool OnDvHeaderPacketIn(CDvHeaderPacket *, const CIp &) { return false; }
virtual void OnDvFramePacketIn(CDvFramePacket *);
virtual void OnDvLastFramePacketIn(CDvLastFramePacket *);
// stream handle helpers
CPacketStream *GetStream(uint16);
void CheckStreamsTimeout(void);
// queue helper
virtual void HandleQueue(void);
protected:
// socket
CUdpSocket m_Socket;
// streams
std::vector<CPacketStream *> m_Streams;
// queue
CPacketQueue m_Queue;
// thread
bool m_bStopThread;
std::thread *m_pThread;
// identity
CCallsign m_ReflectorCallsign;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cprotocol_h */

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//
// cprotocols.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cdextraprotocol.h"
#include "cdplusprotocol.h"
#include "cdcsprotocol.h"
#include "cprotocols.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CProtocols::CProtocols()
{
for ( int i = 0; i < m_Protocols.size(); i++ )
{
m_Protocols[i] = NULL;
}
}
////////////////////////////////////////////////////////////////////////////////////////
// destructor
CProtocols::~CProtocols()
{
m_Mutex.lock();
{
for ( int i = 0; i < m_Protocols.size(); i++ )
{
delete m_Protocols[i];
}
}
m_Mutex.unlock();
}
////////////////////////////////////////////////////////////////////////////////////////
// initialization
bool CProtocols::Init(void)
{
bool ok = true;
m_Mutex.lock();
{
// create and initialize DEXTRA
delete m_Protocols[0];
m_Protocols[0] = new CDextraProtocol;
ok &= m_Protocols[0]->Init();
// create and initialize DPLUS
delete m_Protocols[1];
m_Protocols[1] = new CDplusProtocol;
ok &= m_Protocols[1]->Init();
// create and initialize DCS
delete m_Protocols[2];
m_Protocols[2] = new CDcsProtocol;
ok &= m_Protocols[2]->Init();
}
m_Mutex.unlock();
// done
return ok;
}
void CProtocols::Close(void)
{
m_Mutex.lock();
{
for ( int i = 0; i < m_Protocols.size(); i++ )
{
m_Protocols[i]->Close();
}
}
m_Mutex.unlock();
}

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//
// cprotocols.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 01/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cprotocols_h
#define cprotocols_h
#include "cprotocol.h"
////////////////////////////////////////////////////////////////////////////////////////
// define
////////////////////////////////////////////////////////////////////////////////////////
// class
class CProtocols
{
public:
// constructors
CProtocols();
// destructors
virtual ~CProtocols();
// initialization
bool Init(void);
void Close(void);
// get
int Size(void) const { return (int)m_Protocols.size(); }
CProtocol *GetProtocol(int i) { return m_Protocols[i]; }
protected:
// data
std::mutex m_Mutex;
std::array<CProtocol *, NB_OF_PROTOCOLS> m_Protocols;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cprotocols_h */

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//
// creflector.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include "creflector.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CReflector::CReflector()
{
m_bStopThreads = false;
m_XmlReportThread = NULL;
m_JsonReportThread = NULL;
for ( int i = 0; i < NB_OF_MODULES; i++ )
{
m_RouterThreads[i] = NULL;
}
}
CReflector::CReflector(const CCallsign &callsign)
{
m_bStopThreads = false;
m_XmlReportThread = NULL;
m_JsonReportThread = NULL;
for ( int i = 0; i < NB_OF_MODULES; i++ )
{
m_RouterThreads[i] = NULL;
}
m_Callsign = callsign;
}
////////////////////////////////////////////////////////////////////////////////////////
// destructor
CReflector::~CReflector()
{
m_bStopThreads = true;
if ( m_XmlReportThread != NULL )
{
m_XmlReportThread->join();
delete m_XmlReportThread;
}
if ( m_JsonReportThread != NULL )
{
m_JsonReportThread->join();
delete m_JsonReportThread;
}
for ( int i = 0; i < NB_OF_MODULES; i++ )
{
if ( m_RouterThreads[i] != NULL )
{
m_RouterThreads[i]->join();
delete m_RouterThreads[i];
}
}
}
////////////////////////////////////////////////////////////////////////////////////////
// operation
bool CReflector::Start(void)
{
bool ok = true;
// reset stop flag
m_bStopThreads = false;
// create protocols
ok &= m_Protocols.Init();
// start one thread per reflector module
for ( int i = 0; i < NB_OF_MODULES; i++ )
{
m_RouterThreads[i] = new std::thread(CReflector::RouterThread, this, &(m_Streams[i]));
}
// start the reporting threads
m_XmlReportThread = new std::thread(CReflector::XmlReportThread, this);
#ifdef JSON_MONITOR
m_JsonReportThread = new std::thread(CReflector::JsonReportThread, this);
#endif
// done
return ok;
}
void CReflector::Stop(void)
{
// stop & delete all threads
m_bStopThreads = true;
// stop & delete report threads
if ( m_XmlReportThread != NULL )
{
m_XmlReportThread->join();
delete m_XmlReportThread;
m_XmlReportThread = NULL;
}
if ( m_JsonReportThread != NULL )
{
m_JsonReportThread->join();
delete m_JsonReportThread;
m_JsonReportThread = NULL;
}
// stop & delete all router thread
for ( int i = 0; i < NB_OF_MODULES; i++ )
{
if ( m_RouterThreads[i] != NULL )
{
m_RouterThreads[i]->join();
delete m_RouterThreads[i];
m_RouterThreads[i] = NULL;
}
}
}
////////////////////////////////////////////////////////////////////////////////////////
// stream opening & closing
bool CReflector::IsStreaming(char module)
{
return false;
}
CPacketStream *CReflector::OpenStream(CDvHeaderPacket *DvHeader, CClient *client)
{
CPacketStream *retStream = NULL;
// clients MUST have bee locked by the caller
// so we can freely access it within the fuction
// check if client is valid candidate
if ( m_Clients.IsClient(client) && !client->IsAMaster() )
{
// get the module's queue
char module = DvHeader->GetRpt2Module();
CPacketStream *stream = GetStream(module);
if ( stream != NULL )
{
// lock it
stream->Lock();
// is it available ?
if ( stream->Open(*DvHeader, client) )
{
// stream open, mark client as master
// so that it can't be deleted
client->SetMasterOfModule(module);
// update last heard time
client->Heard();
retStream = stream;
// and push header packet
stream->Push(DvHeader);
// report
std::cout << "Opening stream on module " << module << " for client " << client->GetCallsign()
<< " with sid " << DvHeader->GetStreamId() << std::endl;
// notify
g_Reflector.OnStreamOpen(stream->GetUserCallsign());
}
// unlock now
stream->Unlock();
}
}
// done
return retStream;
}
void CReflector::CloseStream(CPacketStream *stream)
{
//
if ( stream != NULL )
{
// wait queue is empty
// the following waut's forever
bool bEmpty = false;
do
{
stream->Lock();
bEmpty = stream->empty();
stream->Unlock();
if ( !bEmpty )
{
// wait a bit
CTimePoint::TaskSleepFor(10);
}
} while (!bEmpty);
// lock it
stream->Lock();
// lock clients
GetClients();
// get and check the master
CClient *client = stream->GetOwnerClient();
if ( client != NULL )
{
// client no longer a master
client->NotAMaster();
// notify
g_Reflector.OnStreamClose(stream->GetUserCallsign());
std::cout << "Closing stream of module " << GetStreamModule(stream) << std::endl;
}
// stop the queue
stream->Close();
// release clients
ReleaseClients();
// and unlock
stream->Unlock();
}
}
////////////////////////////////////////////////////////////////////////////////////////
// router threads
void CReflector::RouterThread(CReflector *This, CPacketStream *streamIn)
{
// get our module
uint8 uiModuleId = This->GetStreamModule(streamIn);
// get on input queue
CPacket *packet;
while ( !This->m_bStopThreads )
{
// any packet in our input queue ?
streamIn->Lock();
if ( !streamIn->empty() )
{
// get the packet
packet = streamIn->front();
streamIn->pop();
}
else
{
packet = NULL;
}
streamIn->Unlock();
// route it
if ( packet != NULL )
{
// set origin
packet->SetModuleId(uiModuleId);
// iterate on all protocols
for ( int i = 0; i < This->m_Protocols.Size(); i++ )
{
// duplicate packet
CPacket *packetClone = packet->Duplicate();
// get protocol
CProtocol *protocol = This->m_Protocols.GetProtocol(i);
// if packet is header, update RPT2 according to protocol
if ( packetClone->IsDvHeader() )
{
// get our callsign
CCallsign csRPT = protocol->GetReflectorCallsign();
csRPT.SetModule(This->GetStreamModule(streamIn));
((CDvHeaderPacket *)packetClone)->SetRpt2Callsign(csRPT);
}
// and push it
CPacketQueue *queue = protocol->GetQueue();
queue->push(packetClone);
protocol->ReleaseQueue();
}
// done
delete packet;
packet = NULL;
}
// wait a bit
CTimePoint::TaskSleepFor(10);
}
}
////////////////////////////////////////////////////////////////////////////////////////
// report threads
void CReflector::XmlReportThread(CReflector *This)
{
while ( !This->m_bStopThreads )
{
// report to xml file
std::ofstream xmlFile;
xmlFile.open("/var/log/xlxd.xml", std::ios::out | std::ios::trunc);
if ( xmlFile.is_open() )
{
// write xml file
This->WriteXmlFile(xmlFile);
// and close file
xmlFile.close();
}
// and wait a bit
CTimePoint::TaskSleepFor(XML_UPDATE_PERIOD * 1000);
}
}
void CReflector::JsonReportThread(CReflector *This)
{
CUdpSocket Socket;
CBuffer Buffer;
CIp Ip;
bool bOn;
// init variable
bOn = false;
// create listening socket
if ( Socket.Open(JSON_PORT) )
{
// and loop
while ( !This->m_bStopThreads )
{
// any command ?
if ( Socket.Receive(&Buffer, &Ip, 50) != -1 )
{
// check verb
if ( Buffer.Compare((uint8 *)"hello", 5) == 0 )
{
std::cout << "Monitor socket connected with " << Ip << std::endl;
// connected
bOn = true;
// announce ourselves
This->SendJsonReflectorObject(Socket, Ip);
// dump tables
This->SendJsonNodesObject(Socket, Ip);
This->SendJsonStationsObject(Socket, Ip);
}
else if ( Buffer.Compare((uint8 *)"bye", 3) == 0 )
{
std::cout << "Monitor socket disconnected" << std::endl;
// diconnected
bOn = false;
}
}
// any notifications ?
CNotification notification;
This->m_Notifications.Lock();
if ( !This->m_Notifications.empty() )
{
// get the packet
notification = This->m_Notifications.front();
This->m_Notifications.pop();
}
This->m_Notifications.Unlock();
// handle it
if ( bOn )
{
switch ( notification.GetId() )
{
case NOTIFICATION_CLIENTS:
//std::cout << "Monitor updating nodes table" << std::endl;
This->SendJsonNodesObject(Socket, Ip);
break;
case NOTIFICATION_USERS:
//std::cout << "Monitor updating stations table" << std::endl;
This->SendJsonStationsObject(Socket, Ip);
break;
case NOTIFICATION_STREAM_OPEN:
//std::cout << "Monitor notify station " << notification.GetCallsign() << "going ON air" << std::endl;
This->SendJsonStationsObject(Socket, Ip);
This->SendJsonOnairObject(Socket, Ip, notification.GetCallsign());
break;
case NOTIFICATION_STREAM_CLOSE:
//std::cout << "Monitor notify station " << notification.GetCallsign() << "going OFF air" << std::endl;
This->SendJsonOffairObject(Socket, Ip, notification.GetCallsign());
break;
case NOTIFICATION_NONE:
default:
// nothing to do, just sleep a bit
CTimePoint::TaskSleepFor(250);
break;
}
}
}
}
else
{
std::cout << "Error creating monitor socket" << std::endl;
}
}
////////////////////////////////////////////////////////////////////////////////////////
// notifications
void CReflector::OnClientsChanged(void)
{
CNotification notification(NOTIFICATION_CLIENTS);
m_Notifications.Lock();
m_Notifications.push(notification);
m_Notifications.Unlock();
}
void CReflector::OnUsersChanged(void)
{
CNotification notification(NOTIFICATION_USERS);
m_Notifications.Lock();
m_Notifications.push(notification);
m_Notifications.Unlock();
}
void CReflector::OnStreamOpen(const CCallsign &callsign)
{
CNotification notification(NOTIFICATION_STREAM_OPEN, callsign);
m_Notifications.Lock();
m_Notifications.push(notification);
m_Notifications.Unlock();
}
void CReflector::OnStreamClose(const CCallsign &callsign)
{
CNotification notification(NOTIFICATION_STREAM_CLOSE, callsign);
m_Notifications.Lock();
m_Notifications.push(notification);
m_Notifications.Unlock();
}
////////////////////////////////////////////////////////////////////////////////////////
// modules & queues
int CReflector::GetModuleIndex(char module) const
{
int i = (int)module - (int)'A';
if ( (i < 0) || (i >= NB_OF_MODULES) )
{
i = -1;
}
return i;
}
CPacketStream *CReflector::GetStream(char module)
{
CPacketStream *stream = NULL;
int i = GetModuleIndex(module);
if ( i >= 0 )
{
stream = &(m_Streams[i]);
}
return stream;
}
char CReflector::GetStreamModule(CPacketStream *stream)
{
char module = ' ';
for ( int i = 0; (i < m_Streams.size()) && (module == ' '); i++ )
{
if ( &(m_Streams[i]) == stream )
{
module = GetModuleLetter(i);
}
}
return module;
}
////////////////////////////////////////////////////////////////////////////////////////
// xml helpers
void CReflector::WriteXmlFile(std::ofstream &xmlFile)
{
// write header
xmlFile << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << std::endl;
// software version
char sz[64];
::sprintf(sz, "%d.%d.%d", VERSION_MAJOR, VERSION_MINOR, VERSION_REVISION);
xmlFile << "<Version>" << sz << "</Version>" << std::endl;
// linked nodes
xmlFile << "<" << m_Callsign << "linked nodes>" << std::endl;
// lock
CClients *clients = GetClients();
// iterate on clients
for ( int i = 0; i < clients->GetSize(); i++ )
{
clients->GetClient(i)->WriteXml(xmlFile);
}
// unlock
ReleaseClients();
xmlFile << "</" << m_Callsign << "linked nodes>" << std::endl;
// last heard users
xmlFile << "<" << m_Callsign << "heard users>" << std::endl;
// lock
CUsers *users = GetUsers();
// iterate on users
for ( int i = 0; i < users->GetSize(); i++ )
{
users->GetUser(i)->WriteXml(xmlFile);
}
// unlock
ReleaseUsers();
xmlFile << "</" << m_Callsign << "heard users>" << std::endl;
}
////////////////////////////////////////////////////////////////////////////////////////
// json helpers
void CReflector::SendJsonReflectorObject(CUdpSocket &Socket, CIp &Ip)
{
char Buffer[1024];
char cs[CALLSIGN_LEN+1];
char mod[8] = "\"A\"";
// get reflector callsign
m_Callsign.GetCallsign((uint8 *)cs);
cs[CALLSIGN_LEN] = 0;
// build string
::sprintf(Buffer, "{\"reflector\":\"%s\",\"modules\":[", cs);
for ( int i = 0; i < NB_OF_MODULES; i++ )
{
::strcat(Buffer, mod);
mod[1]++;
if ( i < NB_OF_MODULES-1 )
{
::strcat(Buffer, ",");
}
}
::strcat(Buffer, "]}");
// and send
Socket.Send(Buffer, Ip);
}
#define JSON_NBMAX_NODES 250
void CReflector::SendJsonNodesObject(CUdpSocket &Socket, CIp &Ip)
{
char Buffer[12+(JSON_NBMAX_NODES*94)];
// nodes object table
::sprintf(Buffer, "{\"nodes\":[");
// lock
CClients *clients = GetClients();
// iterate on clients
for ( int i = 0; (i < clients->GetSize()) && (i < JSON_NBMAX_NODES); i++ )
{
clients->GetClient(i)->GetJsonObject(Buffer);
if ( i < clients->GetSize()-1 )
{
::strcat(Buffer, ",");
}
}
// unlock
ReleaseClients();
::strcat(Buffer, "]}");
// and send
//std::cout << Buffer << std::endl;
Socket.Send(Buffer, Ip);
}
void CReflector::SendJsonStationsObject(CUdpSocket &Socket, CIp &Ip)
{
char Buffer[15+(LASTHEARD_USERS_MAX_SIZE*94)];
// stations object table
::sprintf(Buffer, "{\"stations\":[");
// lock
CUsers *users = GetUsers();
// iterate on users
for ( int i = 0; i < users->GetSize(); i++ )
{
users->GetUser(i)->GetJsonObject(Buffer);
if ( i < users->GetSize()-1 )
{
::strcat(Buffer, ",");
}
}
// unlock
ReleaseUsers();
::strcat(Buffer, "]}");
// and send
//std::cout << Buffer << std::endl;
Socket.Send(Buffer, Ip);
}
void CReflector::SendJsonOnairObject(CUdpSocket &Socket, CIp &Ip, const CCallsign &Callsign)
{
char Buffer[128];
char sz[CALLSIGN_LEN+1];
// onair object
Callsign.GetCallsignString(sz);
::sprintf(Buffer, "{\"onair\":\"%s\"}", sz);
// and send
//std::cout << Buffer << std::endl;
Socket.Send(Buffer, Ip);
}
void CReflector::SendJsonOffairObject(CUdpSocket &Socket, CIp &Ip, const CCallsign &Callsign)
{
char Buffer[128];
char sz[CALLSIGN_LEN+1];
// offair object
Callsign.GetCallsignString(sz);
::sprintf(Buffer, "{\"offair\":\"%s\"}", sz);
// and send
//std::cout << Buffer << std::endl;
Socket.Send(Buffer, Ip);
}

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//
// creflector.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef creflector_h
#define creflector_h
#include "cusers.h"
#include "cclients.h"
#include "cprotocols.h"
#include "cpacketstream.h"
#include "cnotificationqueue.h"
////////////////////////////////////////////////////////////////////////////////////////
// define
// event defines
#define EVENT_NONE 0
#define EVENT_CLIENTS 1
#define EVENT_USERS 2
////////////////////////////////////////////////////////////////////////////////////////
// class
class CReflector
{
public:
// constructor
CReflector();
CReflector(const CCallsign &);
// destructor
virtual ~CReflector();
// settings
void SetCallsign(const CCallsign &callsign) { m_Callsign = callsign; }
const CCallsign &GetCallsign(void) const { return m_Callsign; }
void SetListenIp(const CIp &ip) { m_Ip = ip; }
const CIp &GetListenIp(void) const { return m_Ip; }
// operation
bool Start(void);
void Stop(void);
// clients
CClients *GetClients(void) { m_Clients.Lock(); return &m_Clients; }
void ReleaseClients(void) { m_Clients.Unlock(); }
// stream opening & closing
CPacketStream *OpenStream(CDvHeaderPacket *, CClient *);
bool IsStreaming(char);
void CloseStream(CPacketStream *);
// users
CUsers *GetUsers(void) { m_Users.Lock(); return &m_Users; }
void ReleaseUsers(void) { m_Users.Unlock(); }
// get
bool IsValidModule(char c) const { return true; }
int GetModuleIndex(char) const;
char GetModuleLetter(int i) const { return 'A' + (char)i; }
// notifications
void OnClientsChanged(void);
void OnUsersChanged(void);
void OnStreamOpen(const CCallsign &);
void OnStreamClose(const CCallsign &);
protected:
// threads
static void RouterThread(CReflector *, CPacketStream *);
static void XmlReportThread(CReflector *);
static void JsonReportThread(CReflector *);
// streams
CPacketStream *GetStream(char);
char GetStreamModule(CPacketStream *);
// xml helpers
void WriteXmlFile(std::ofstream &);
// json helpers
void SendJsonReflectorObject(CUdpSocket &, CIp &);
void SendJsonNodesObject(CUdpSocket &, CIp &);
void SendJsonStationsObject(CUdpSocket &, CIp &);
void SendJsonOnairObject(CUdpSocket &, CIp &, const CCallsign &);
void SendJsonOffairObject(CUdpSocket &, CIp &, const CCallsign &);
protected:
// identity
CCallsign m_Callsign;
CIp m_Ip;
// objects
CUsers m_Users; // sorted list of lastheard stations
CClients m_Clients; // list of linked repeaters/nodes
CProtocols m_Protocols; // list of supported protocol handlers
// queues
std::array<CPacketStream, NB_OF_MODULES> m_Streams;
// threads
bool m_bStopThreads;
std::array<std::thread *, NB_OF_MODULES> m_RouterThreads;
std::thread *m_XmlReportThread;
std::thread *m_JsonReportThread;
// notifications
CNotificationQueue m_Notifications;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* creflector_h */

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//
// ctimepoint.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 05/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "ctimepoint.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CTimePoint::CTimePoint()
{
m_TimePoint = std::chrono::steady_clock::now();
}
////////////////////////////////////////////////////////////////////////////////////////
// operation
double CTimePoint::DurationSinceNow(void) const
{
std::chrono::steady_clock::time_point Now = std::chrono::steady_clock::now();
std::chrono::steady_clock::duration time_span = (Now - m_TimePoint);
return double(time_span.count()) * std::chrono::steady_clock::period::num / std::chrono::steady_clock::period::den;
}
////////////////////////////////////////////////////////////////////////////////////////
// task
void CTimePoint::TaskSleepFor(uint ms)
{
std::chrono::milliseconds timespan(ms);
std::this_thread::sleep_for(timespan);
}

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//
// ctimepoint.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 05/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef ctimepoint_h
#define ctimepoint_h
////////////////////////////////////////////////////////////////////////////////////////
// class
class CTimePoint : public std::chrono::steady_clock::time_point
{
public:
// constructor
CTimePoint();
// destructor
virtual ~CTimePoint() {}
// operation
void Now(void) { m_TimePoint = std::chrono::steady_clock::now(); }
double DurationSinceNow(void) const;
// task
static void TaskSleepFor(uint);
protected:
// data
std::chrono::steady_clock::time_point m_TimePoint;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* ctimepoint_h */

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//
// cudpsocket.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include "creflector.h"
#include "cudpsocket.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CUdpSocket::CUdpSocket()
{
m_Socket = -1;
}
////////////////////////////////////////////////////////////////////////////////////////
// destructor
CUdpSocket::~CUdpSocket()
{
if ( m_Socket != -1 )
{
Close();
}
}
////////////////////////////////////////////////////////////////////////////////////////
// open & close
bool CUdpSocket::Open(uint16 uiPort)
{
bool open = false;
// create socket
m_Socket = socket(PF_INET,SOCK_DGRAM,0);
if ( m_Socket != -1 )
{
// initialize sockaddr struct
::memset(&m_SocketAddr, 0, sizeof(struct sockaddr_in));
m_SocketAddr.sin_family = AF_INET;
m_SocketAddr.sin_port = htons(uiPort);
m_SocketAddr.sin_addr.s_addr = inet_addr(g_Reflector.GetListenIp());
if ( bind(m_Socket, (struct sockaddr *)&m_SocketAddr, sizeof(struct sockaddr_in)) == 0 )
{
fcntl(m_Socket, F_SETFL, O_NONBLOCK);
open = true;
}
else
{
close(m_Socket);
m_Socket = -1;
}
}
// done
return open;
}
void CUdpSocket::Close(void)
{
if ( m_Socket != -1 )
{
close(m_Socket);
m_Socket = -1;
}
}
////////////////////////////////////////////////////////////////////////////////////////
// read
int CUdpSocket::Receive(CBuffer *Buffer, CIp *Ip, int timeout)
{
struct sockaddr_in Sin;
fd_set FdSet;
unsigned int uiFromLen = sizeof(struct sockaddr_in);
int iRecvLen = -1;
struct timeval tv;
// socket valid ?
if ( m_Socket != -1 )
{
// control socket
FD_ZERO(&FdSet);
FD_SET(m_Socket, &FdSet);
tv.tv_sec = timeout / 1000;
tv.tv_usec = (timeout % 1000) * 1000;
select(m_Socket + 1, &FdSet, 0, 0, &tv);
// allocate buffer
Buffer->resize(UDP_BUFFER_LENMAX);
// read
iRecvLen = (int)recvfrom(m_Socket,
(void *)Buffer->data(), UDP_BUFFER_LENMAX,
0, (struct sockaddr *)&Sin, &uiFromLen);
// handle
if ( iRecvLen != -1 )
{
// adjust buffer size
Buffer->resize(iRecvLen);
// get IP
Ip->SetSockAddr(&Sin);
}
}
// done
return iRecvLen;
}
////////////////////////////////////////////////////////////////////////////////////////
// write
int CUdpSocket::Send(const CBuffer &Buffer, const CIp &Ip)
{
CIp temp(Ip);
return (int)::sendto(m_Socket,
(void *)Buffer.data(), Buffer.size(),
0, (struct sockaddr *)temp.GetSockAddr(), sizeof(struct sockaddr_in));
}
int CUdpSocket::Send(const char *Buffer, const CIp &Ip)
{
CIp temp(Ip);
return (int)::sendto(m_Socket,
(void *)Buffer, ::strlen(Buffer),
0, (struct sockaddr *)temp.GetSockAddr(), sizeof(struct sockaddr_in));
}

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//
// cudpsocket.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cudpsocket_h
#define cudpsocket_h
#include <sys/types.h>
//#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
#include "cip.h"
#include "cbuffer.h"
////////////////////////////////////////////////////////////////////////////////////////
// define
#define UDP_BUFFER_LENMAX 1024
////////////////////////////////////////////////////////////////////////////////////////
// class
class CUdpSocket
{
public:
// constructor
CUdpSocket();
// destructor
~CUdpSocket();
// open & close
bool Open(uint16);
void Close(void);
int GetSocket(void) { return m_Socket; }
// read
int Receive(CBuffer *, CIp *, int);
// write
int Send(const CBuffer &, const CIp &);
int Send(const char *, const CIp &);
protected:
// data
int m_Socket;
struct sockaddr_in m_SocketAddr;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cudpsocket_h */

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//
// cuser.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 13/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include <string.h>
#include "cuser.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructors
CUser::CUser()
{
m_LastHeardTime = std::time(NULL);
}
CUser::CUser(const CCallsign &my, const CCallsign &rpt1)
{
m_My = my;
m_Rpt1 = rpt1;
m_LastHeardTime = std::time(NULL);
}
CUser::CUser(const CUser &user)
{
m_My = user.m_My;
m_Rpt1 = user.m_Rpt1;
m_LastHeardTime = user.m_LastHeardTime;
}
////////////////////////////////////////////////////////////////////////////////////////
// operators
bool CUser::operator ==(const CUser &user) const
{
return ((user.m_My == m_My) && (user.m_Rpt1 == m_Rpt1));
}
bool CUser::operator <(const CUser &user) const
{
// smallest is youngest
return (std::difftime(m_LastHeardTime, user.m_LastHeardTime) > 0);
}
////////////////////////////////////////////////////////////////////////////////////////
// reporting
void CUser::WriteXml(std::ofstream &xmlFile)
{
xmlFile << "<STATION>" << std::endl;
xmlFile << "\t<Callsign>" << m_My << "</Callsign>" << std::endl;
xmlFile << "\t<Via>" << m_Rpt1 << "</Via>" << std::endl;
char mbstr[100];
if (std::strftime(mbstr, sizeof(mbstr), "%A %c", std::localtime(&m_LastHeardTime)))
{
xmlFile << "\t<LastHeardTime>" << mbstr << "</LastHeardTime>" << std::endl;
}
xmlFile << "</STATION>" << std::endl;
}
void CUser::GetJsonObject(char *Buffer)
{
char sz[512];
char mbstr[100];
char my[16];
char rpt1[16];
if (std::strftime(mbstr, sizeof(mbstr), "%A %c", std::localtime(&m_LastHeardTime)))
{
m_My.GetCallsignString(my);
m_Rpt1.GetCallsignString(rpt1);
::sprintf(sz, "{\"callsign\":\"%s\",\"node\":\"%s\",\"module\":\"%c\",\"time\":\"%s\"}",
my,
rpt1,
m_Rpt1.GetModule(),
mbstr);
::strcat(Buffer, sz);
}
}

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//
// cuser.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 13/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cuser_h
#define cuser_h
#include "ccallsign.h"
#include "cbuffer.h"
////////////////////////////////////////////////////////////////////////////////////////
class CUser
{
public:
// constructor
CUser();
CUser(const CCallsign &, const CCallsign &);
CUser(const CUser &);
// destructor
~CUser() {}
// operation
void HeardNow(void) { m_LastHeardTime = std::time(NULL); }
// operators
bool operator ==(const CUser &) const;
bool operator <(const CUser &) const;
// reporting
void WriteXml(std::ofstream &);
void GetJsonObject(char *);
protected:
// data
CCallsign m_My;
CCallsign m_Rpt1;
std::time_t m_LastHeardTime;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cuser_h */

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//
// cusers.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 13/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "cusers.h"
#include "creflector.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CUsers::CUsers()
{
m_Users.reserve(LASTHEARD_USERS_MAX_SIZE);
}
////////////////////////////////////////////////////////////////////////////////////////
// users management
void CUsers::AddUser(const CUser &user)
{
// add
m_Users.push_back(user);
// sort list by descending time (fisrt is youngest)
std::sort(m_Users.begin(), m_Users.end());
// if list size too big, remove oldest
if ( m_Users.size() >= (LASTHEARD_USERS_MAX_SIZE-1) )
{
m_Users.resize(m_Users.size()-1);
}
// notify
g_Reflector.OnUsersChanged();
}
////////////////////////////////////////////////////////////////////////////////////////
// operation
void CUsers::Hearing(const CCallsign &my, const CCallsign &rpt1)
{
CUser heard(my, rpt1);
// first check if we have this user listed yet
bool found = false;
for ( int i = 0; (i < m_Users.size()) && !found; i++ )
{
found = (m_Users[i] == heard);
if ( found )
{
m_Users[i].HeardNow();
}
}
// if not found, add user to list
// otherwise just re-sort the list
if ( !found )
{
AddUser(heard);
}
else
{
std::sort(m_Users.begin(), m_Users.end());
}
}

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//
// cusers.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 13/11/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef cusers_h
#define cusers_h
#include "cuser.h"
////////////////////////////////////////////////////////////////////////////////////////
class CUsers
{
public:
// constructor
CUsers();
// destructor
virtual ~CUsers() {}
// locks
void Lock(void) { m_Mutex.lock(); }
void Unlock(void) { m_Mutex.unlock(); }
// management
int GetSize(void) const { return (int)m_Users.size(); }
void AddUser(const CUser &);
CUser *GetUser(int i) { return &m_Users[i]; }
// operation
void Hearing(const CCallsign &, const CCallsign &);
protected:
// data
std::mutex m_Mutex;
std::vector<CUser> m_Users;
};
////////////////////////////////////////////////////////////////////////////////////////
#endif /* cusers_h */

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//
// main.cpp
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include "main.h"
#include "creflector.h"
#include "syslog.h"
#include <sys/stat.h>
////////////////////////////////////////////////////////////////////////////////////////
// global objects
CReflector g_Reflector;
////////////////////////////////////////////////////////////////////////////////////////
// function declaration
#include "cusers.h"
int main(int argc, const char * argv[])
{
#ifdef RUN_AS_DAEMON
// redirect cout, cerr and clog to syslog
syslog::redirect cout_redir(std::cout);
syslog::redirect cerr_redir(std::cerr);
syslog::redirect clog_redir(std::clog);
//Fork the Parent Process
pid_t pid, sid;
pid = ::fork();
if ( pid < 0 )
{
exit(EXIT_FAILURE);
}
// We got a good pid, Close the Parent Process
if (pid > 0)
{
exit(EXIT_SUCCESS);
}
// Change File Mask
::umask(0);
//Create a new Signature Id for our child
sid = ::setsid();
if (sid < 0)
{
exit(EXIT_FAILURE);
}
// Change Directory
// If we cant find the directory we exit with failure.
if ( (::chdir("/")) < 0)
{
exit(EXIT_FAILURE);
}
// Close Standard File Descriptors
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
#endif
// check arguments
if ( argc != 3 )
{
std::cout << "Usage: xlxd callsign ip" << std::endl;
std::cout << "example: xlxd XLX999 192.168.178.212" << std::endl;
return 1;
}
// initialize reflector
g_Reflector.SetCallsign(argv[1]);
g_Reflector.SetListenIp(CIp(argv[2]));
// and let it run
if ( !g_Reflector.Start() )
{
std::cout << "Error starting reflector" << std::endl;
exit(EXIT_FAILURE);
}
std::cout << "Reflector " << g_Reflector.GetCallsign()
<< "started and listening on " << g_Reflector.GetListenIp() << std::endl;
#ifdef RUN_AS_DAEMON
// run forever
while ( true )
{
// sleep 60 seconds
CTimePoint::TaskSleepFor(60000);
}
#else
// wait any key
//for (;;);
std::cin.get();
#endif
// and wait for end
g_Reflector.Stop();
std::cout << "Reflector stopped" << std::endl;
// done
exit(EXIT_SUCCESS);
}

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//
// main.h
// xlxd
//
// Created by Jean-Luc Deltombe (LX3JL) on 31/10/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
//
// ----------------------------------------------------------------------------
// This file is part of xlxd.
//
// xlxd 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.
//
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#ifndef main_h
#define main_h
#include <vector>
#include <array>
#include <queue>
#include <chrono>
#include <thread>
#include <mutex>
#include <atomic>
#include <condition_variable>
#include <ctime>
#include <cctype>
#include <iostream>
#include <iomanip>
#include <fstream>
#include <algorithm>
#include <arpa/inet.h>
////////////////////////////////////////////////////////////////////////////////////////
// defines
// version -----------------------------------------------------
#define VERSION_MAJOR 1
#define VERSION_MINOR 0
#define VERSION_REVISION 0
// global ------------------------------------------------------
#define RUN_AS_DAEMON
#define JSON_MONITOR
// reflector ---------------------------------------------------
#define NB_OF_MODULES 4
// protocols ---------------------------------------------------
#define NB_OF_PROTOCOLS 3
#define PROTOCOL_NONE 0
#define PROTOCOL_DEXTRA 1
#define PROTOCOL_DPLUS 2
#define PROTOCOL_DCS 3
// DExtra
#define DEXTRA_PORT 30001 // UDP port
#define DEXTRA_KEEPALIVE_PERIOD 3 // in seconds
#define DEXTRA_KEEPALIVE_TIMEOUT (DEXTRA_KEEPALIVE_PERIOD*10) // in seconds
// DPlus
#define DPLUS_PORT 20001 // UDP port
#define DPLUS_KEEPALIVE_PERIOD 1 // in seconds
#define DPLUS_KEEPALIVE_TIMEOUT (DPLUS_KEEPALIVE_PERIOD*10) // in seconds
// DCS
#define DCS_PORT 30051 // UDP port
#define DCS_KEEPALIVE_PERIOD 1 // in seconds
#define DCS_KEEPALIVE_TIMEOUT (DCS_KEEPALIVE_PERIOD*10) // in seconds
// xml & json reporting -----------------------------------------
#define LASTHEARD_USERS_MAX_SIZE 100
#define XML_UPDATE_PERIOD 10 // in seconds
#define JSON_UPDATE_PERIOD 10 // in seconds
#define JSON_PORT 10001
////////////////////////////////////////////////////////////////////////////////////////
// typedefs
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned long uint32;
typedef unsigned int uint;
////////////////////////////////////////////////////////////////////////////////////////
// macros
#define MIN(a,b) ((a) < (b))?(a):(b)
#define MAX(a,b) ((a) > (b))?(a):(b)
#define MAKEWORD(low, high) ((uint16)(((uint8)(low)) | (((uint16)((uint8)(high))) << 8)))
#define LOBYTE(w) ((uint8)(uint16)(w & 0x00FF))
#define HIBYTE(w) ((uint8)((((uint16)(w)) >> 8) & 0xFF))
////////////////////////////////////////////////////////////////////////////////////////
// global objects
class CReflector;
extern CReflector g_Reflector;
class CGateKeeper;
extern CGateKeeper g_GateKeeper;
////////////////////////////////////////////////////////////////////////////////////////
#endif /* main_h */

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CC=g++
CFLAGS=-c -std=c++11 -pthread
LDFLAGS=-std=c++11 -pthread
SOURCES=$(wildcard *.cpp)
OBJECTS=$(SOURCES:.cpp=.o)
EXECUTABLE=xlxd
all: $(SOURCES) $(EXECUTABLE)
$(EXECUTABLE): $(OBJECTS)
$(CC) $(LDFLAGS) $(OBJECTS) -o $@
.cpp.o:
$(CC) $(CFLAGS) $< -o $@
clean:
rm *.o

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/*************************************************************************
** Copyright (C) 2014 Jan Pedersen <jp@jp-embedded.com>
**
** 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 <http://www.gnu.org/licenses/>.
*************************************************************************/
#ifndef __syslog
#define __syslog
#include <iostream>
#include <streambuf>
#include <string>
namespace csyslog {
#include <syslog.h>
}
namespace syslog
{
struct level {
enum pri {
emerg = LOG_EMERG, // A panic condition
alert = LOG_ALERT, // A condition that should be corrected
critical= LOG_CRIT, // Critical condition, e.g, hard device error
error = LOG_ERR, // Errors
warning = LOG_WARNING, // Warning messages
notice = LOG_NOTICE, // Possibly be handled specially
info = LOG_INFO, // Informational
debug = LOG_DEBUG // For debugging program
};
};
class streambuf : public std::streambuf
{
std::string _buf;
int _level;
public:
streambuf() : _level(level::debug) { }
void level(int level) { _level = level; }
protected:
int sync()
{
if (_buf.size()) {
csyslog::syslog(_level, "%s", _buf.c_str());
_buf.erase();
}
return 0;
}
int_type overflow(int_type c)
{
if(c == traits_type::eof()) sync();
else _buf += static_cast<char>(c);
return c;
}
};
class ostream : public std::ostream
{
streambuf _logbuf;
public:
ostream() : std::ostream(&_logbuf) {}
ostream& operator<<(const level::pri lev) { _logbuf.level(lev); return *this; }
};
class redirect
{
ostream dst;
std::ostream &src;
std::streambuf * const sbuf;
public:
redirect(std::ostream & src) : src(src), sbuf(src.rdbuf(dst.rdbuf())) { dst << (&src == &std::cout ? level::info : level::error); }
~redirect() { src.rdbuf(sbuf); }
};
}
#endif