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#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
/*
* ast_h323.cpp
*
* OpenH323 Channel Driver for ASTERISK PBX.
* By Jeremy McNamara
* For The NuFone Network
*
* chan_h323 has been derived from code created by
* Michael Manousos and Mark Spencer
*
* This file is part of the chan_h323 driver for Asterisk
*
* chan_h323 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 2 of the License, or
* (at your option) any later version.
*
* chan_h323 is distributed 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Version Info: $Id$
*/
#include <ptlib.h>
#include <h323.h>
#include <transports.h>
#include "ast_h323.h"
#include "compat_h323.h"
#if VERSION(OPENH323_MAJOR,OPENH323_MINOR,OPENH323_BUILD) < VERSION(1,17,3)
MyH323TransportTCP::MyH323TransportTCP(
H323EndPoint & endpoint,
PIPSocket::Address binding,
PBoolean listen)
: H323TransportTCP(endpoint, binding, listen)
{
}
PBoolean MyH323TransportTCP::Connect()
{
if (IsListening())
return TRUE;
PTCPSocket * socket = new PTCPSocket(remotePort);
Open(socket);
channelPointerMutex.StartRead();
socket->SetReadTimeout(10000/*endpoint.GetSignallingChannelConnectTimeout()*/);
localPort = endpoint.GetNextTCPPort();
WORD firstPort = localPort;
for (;;) {
PTRACE(4, "H323TCP\tConnecting to "
<< remoteAddress << ':' << remotePort
<< " (local port=" << localPort << ')');
if (socket->Connect(localAddress, localPort, remoteAddress))
break;
int errnum = socket->GetErrorNumber();
if (localPort == 0 || (errnum != EADDRINUSE && errnum != EADDRNOTAVAIL)) {
PTRACE(1, "H323TCP\tCould not connect to "
<< remoteAddress << ':' << remotePort
<< " (local port=" << localPort << ") - "
<< socket->GetErrorText() << '(' << errnum << ')');
channelPointerMutex.EndRead();
return SetErrorValues(socket->GetErrorCode(), errnum);
}
localPort = endpoint.GetNextTCPPort();
if (localPort == firstPort) {
PTRACE(1, "H323TCP\tCould not bind to any port in range " <<
endpoint.GetTCPPortBase() << " to " << endpoint.GetTCPPortMax());
channelPointerMutex.EndRead();
return SetErrorValues(socket->GetErrorCode(), errnum);
}
}
socket->SetReadTimeout(PMaxTimeInterval);
channelPointerMutex.EndRead();
return OnOpen();
}
#endif
PBoolean MyH323TransportUDP::DiscoverGatekeeper(H323Gatekeeper &gk, H323RasPDU &pdu, const H323TransportAddress &address)
{
PThread *thd = PThread::Current();
/* If we run in OpenH323's thread use it instead of creating new one */
if (thd)
return H323TransportUDP::DiscoverGatekeeper(gk, pdu, address);
/* Make copy of arguments to pass them into thread */
discoverGatekeeper = &gk;
discoverPDU = &pdu;
discoverAddress = &address;
/* Assume discovery thread isn't finished */
discoverReady = FALSE;
/* Create discovery thread */
thd = PThread::Create(PCREATE_NOTIFIER(DiscoverMain), 0,
PThread::NoAutoDeleteThread,
PThread::NormalPriority,
"GkDiscovery:%x");
/* Wait until discovery thread signal us its finished */
for(;;) {
discoverMutex.Wait();
if (discoverReady) /* Thread has been finished */
break;
discoverMutex.Signal();
}
discoverMutex.Signal();
/* Cleanup/delete thread */
thd->WaitForTermination();
delete thd;
return discoverResult;
}
void MyH323TransportUDP::DiscoverMain(PThread &thread, INT arg)
{
PWaitAndSignal m(discoverMutex);
discoverResult = H323TransportUDP::DiscoverGatekeeper(*discoverGatekeeper, *discoverPDU, *discoverAddress);
discoverReady = TRUE;
}
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