void CDplusProtocol::HandleKeepalives(void)
{
// 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();
}
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
CCallsign via(Header->GetRpt1Callsign());
// first, check module is valid
if ( g_Reflector.IsValidModule(Header->GetRpt1Module()) )
{
// find this client
CClient *client = g_Reflector.GetClients()->FindClient(Ip, PROTOCOL_DPLUS);
if ( client != NULL )
{
// now we know if it's a dextra dongle or a genuine dplus node
if ( Header->GetRpt2Callsign().HasSameCallsignWithWildcard(CCallsign("XRF*")) )
{
client->SetDextraDongle();
}
// now we know its module, let's update it
if ( !client->HasModule() )
{
client->SetModule(Header->GetRpt1Module());
}
// get client callsign
via = client->GetCallsign();
// 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();
// update last heard
g_Reflector.GetUsers()->Hearing(Header->GetMyCallsign(), via, Header->GetRpt2Callsign());
g_Reflector.ReleaseUsers();
}
else
{
std::cout << "DPlus node " << via << " link attempt on non-existing module" << std::endl;
}
}
else
{
// stream already open
// skip packet, but tickle the stream
stream->Tickle();
// and delete packet
delete Header;
}
// done
return newstream;
}