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1087 lines
28 KiB
1087 lines
28 KiB
/*
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* ast_h323.cpp
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*
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* OpenH323 Channel Driver for ASTERISK PBX.
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* By Jeremy McNamara
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* For The NuFone Network
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*
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* This code has been derived from code created by
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* Michael Manousos and Mark Spencer
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*
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* This file is part of the chan_h323 driver for Asterisk
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*
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* chan_h323 is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* chan_h323 is distributed WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Version Info: $Id$
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*/
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#include "ast_h323.h"
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#include "h323t38.h"
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/* PWlib Required Components */
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#define MAJOR_VERSION 0
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#define MINOR_VERSION 1
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#define BUILD_TYPE ReleaseCode
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#define BUILD_NUMBER 0
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/** Counter for the number of connections */
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int channelsOpen;
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/* DTMF Mode */
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int mode = H323_DTMF_RFC2833;
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/** Options for connections creation */
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BOOL noFastStart;
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BOOL noH245Tunnelling;
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BOOL noSilenceSuppression;
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/**
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* We assume that only one endPoint should exist.
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* The application cannot run the h323_end_point_create() more than once
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* FIXME: Singleton this, for safety
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*/
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MyH323EndPoint *endPoint = NULL;
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/** PWLib entry point */
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MyProcess *localProcess = NULL;
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/** H.323 listener */
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H323ListenerTCP *tcpListener;
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MyProcess::MyProcess(): PProcess("The NuFone Network's", "H.323 Channel Driver for Asterisk",
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MAJOR_VERSION, MINOR_VERSION, BUILD_TYPE, BUILD_NUMBER)
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{
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Resume();
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}
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MyProcess::~MyProcess()
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{
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cout << " == PWLib proces going down." << endl;
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delete endPoint;
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endPoint = NULL;
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}
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void MyProcess::Main()
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{
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cout << " == Creating H.323 Endpoint" << endl;
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endPoint = new MyH323EndPoint();
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PTrace::Initialise(0, NULL, PTrace::Timestamp | PTrace::Thread | PTrace::FileAndLine);
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}
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ClearCallThread::ClearCallThread(const char *tc) : PThread(10000, PThread::NoAutoDeleteThread)
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{
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token = tc;
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Resume();
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}
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ClearCallThread::~ClearCallThread()
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{
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if (h323debug)
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cout << " == ClearCall thread going down." << endl;
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return;
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}
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void ClearCallThread::Main()
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{
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endPoint->ClearCall(token);
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return;
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}
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#define H323_NAME OPAL_G7231_6k3"{sw}"
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H323_REGISTER_CAPABILITY(H323_G7231Capability, H323_NAME);
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H323_G7231Capability::H323_G7231Capability(BOOL annexA_)
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: H323AudioCapability(7, 4)
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{
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annexA = annexA_;
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}
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PObject::Comparison H323_G7231Capability::Compare(const PObject & obj) const
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{
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Comparison result = H323AudioCapability::Compare(obj);
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if (result != EqualTo)
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return result;
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PINDEX otherAnnexA = ((const H323_G7231Capability &)obj).annexA;
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if (annexA < otherAnnexA)
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return LessThan;
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if (annexA > otherAnnexA)
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return GreaterThan;
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return EqualTo;
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}
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PObject * H323_G7231Capability::Clone() const
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{
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return new H323_G7231Capability(*this);
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}
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PString H323_G7231Capability::GetFormatName() const
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{
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return H323_NAME;
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}
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unsigned H323_G7231Capability::GetSubType() const
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{
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return H245_AudioCapability::e_g7231;
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}
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BOOL H323_G7231Capability::OnSendingPDU(H245_AudioCapability & cap,
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unsigned packetSize) const
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{
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cap.SetTag(H245_AudioCapability::e_g7231);
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H245_AudioCapability_g7231 & g7231 = cap;
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g7231.m_maxAl_sduAudioFrames = packetSize;
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g7231.m_silenceSuppression = annexA;
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return TRUE;
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}
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BOOL H323_G7231Capability::OnReceivedPDU(const H245_AudioCapability & cap,
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unsigned & packetSize)
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{
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if (cap.GetTag() != H245_AudioCapability::e_g7231)
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return FALSE;
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const H245_AudioCapability_g7231 & g7231 = cap;
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packetSize = g7231.m_maxAl_sduAudioFrames;
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annexA = g7231.m_silenceSuppression;
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return TRUE;
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}
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H323Codec * H323_G7231Capability::CreateCodec(H323Codec::Direction direction) const
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{
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return NULL;
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}
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/** MyH323EndPoint
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* The fullAddress parameter is used directly in the MakeCall method so
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* the General form for the fullAddress argument is :
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* [alias@][transport$]host[:port]
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* default values: alias = the same value as host.
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* transport = ip.
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* port = 1720.
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*/
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int MyH323EndPoint::MakeCall(const PString & dest, PString & token,
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unsigned int *callReference, unsigned int port, char *callerid)
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{
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PString fullAddress;
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MyH323Connection * connection;
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/* Determine whether we are using a gatekeeper or not. */
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if (GetGatekeeper() != NULL) {
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fullAddress = dest;
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if (h323debug)
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cout << " -- Making call to " << fullAddress << " using gatekeeper." << endl;
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} else {
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fullAddress = dest; /* host */
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if (h323debug)
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cout << " -- Making call to " << fullAddress << "." << endl;
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}
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if (!(connection = (MyH323Connection *)H323EndPoint::MakeCallLocked(fullAddress, token))) {
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if (h323debug)
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cout << "Error making call to \"" << fullAddress << '"' << endl;
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return 1;
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}
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*callReference = connection->GetCallReference();
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if (callerid)
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connection->SetLocalPartyName(PString(callerid));
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connection->Unlock();
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if (h323debug) {
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cout << " -- " << GetLocalUserName() << " is calling host " << fullAddress << endl;
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cout << " -- " << "Call token is " << (const char *)token << endl;
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cout << " -- Call reference is " << *callReference << endl;
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}
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return 0;
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}
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void MyH323EndPoint::SetEndpointTypeInfo( H225_EndpointType & info ) const
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{
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H323EndPoint::SetEndpointTypeInfo(info);
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info.m_gateway.IncludeOptionalField(H225_GatewayInfo::e_protocol);
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info.m_gateway.m_protocol.SetSize(1);
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H225_SupportedProtocols &protocol=info.m_gateway.m_protocol[0];
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protocol.SetTag(H225_SupportedProtocols::e_voice);
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PINDEX as=SupportedPrefixes.GetSize();
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((H225_VoiceCaps &)protocol).m_supportedPrefixes.SetSize(as);
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for (PINDEX p=0; p<as; p++) {
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H323SetAliasAddress(SupportedPrefixes[p], ((H225_VoiceCaps &)protocol).m_supportedPrefixes[p].m_prefix);
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}
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}
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void MyH323EndPoint::SetGateway(void)
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{
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terminalType = e_GatewayOnly;
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}
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H323Capabilities MyH323EndPoint::GetCapabilities(void)
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{
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return capabilities;
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}
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BOOL MyH323EndPoint::ClearCall(const PString & token)
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{
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if (h323debug)
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cout << " -- ClearCall: Request to clear call with token " << token << endl;
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return H323EndPoint::ClearCall(token);
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}
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void MyH323EndPoint::SendUserTone(const PString &token, char tone)
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{
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H323Connection *connection = NULL;
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connection = FindConnectionWithLock(token);
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if (connection != NULL) {
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connection->SendUserInputTone(tone, 500);
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connection->Unlock();
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}
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}
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void MyH323EndPoint::OnClosedLogicalChannel(H323Connection & connection, const H323Channel & channel)
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{
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channelsOpen--;
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if (h323debug)
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cout << " channelsOpen = " << channelsOpen << endl;
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H323EndPoint::OnClosedLogicalChannel(connection, channel);
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}
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BOOL MyH323EndPoint::OnConnectionForwarded(H323Connection & connection,
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const PString & forwardParty,
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const H323SignalPDU & pdu)
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{
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if (h323debug)
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cout << " -- Call Forwarded to " << forwardParty << endl;
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return FALSE;
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}
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BOOL MyH323EndPoint::ForwardConnection(H323Connection & connection,
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const PString & forwardParty,
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const H323SignalPDU & pdu)
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{
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if (h323debug)
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cout << " -- Forwarding call to " << forwardParty << endl;
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return H323EndPoint::ForwardConnection(connection, forwardParty, pdu);
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}
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void MyH323EndPoint::OnConnectionEstablished(H323Connection & connection, const PString & estCallToken)
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{
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if (h323debug)
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cout << " -- Connection Established with \"" << connection.GetRemotePartyName() << "\"" << endl;
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on_connection_established(connection.GetCallReference());
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}
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/** OnConnectionCleared callback function is called upon the dropping of an established
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* H323 connection.
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*/
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void MyH323EndPoint::OnConnectionCleared(H323Connection & connection, const PString & clearedCallToken)
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{
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PString remoteName = connection.GetRemotePartyName();
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call_details_t cd;
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cd.call_reference = connection.GetCallReference();
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cd.call_token = (const char *)connection.GetCallToken();
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cd.call_source_aliases = (const char *)connection.GetRemotePartyName();
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/* Convert complex strings */
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char *s;
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if ((s = strchr(cd.call_source_aliases, ' ')) != NULL)
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*s = '\0';
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/* Invoke the PBX application registered callback */
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on_connection_cleared(cd);
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switch (connection.GetCallEndReason()) {
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case H323Connection::EndedByCallForwarded :
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if (h323debug)
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cout << " -- " << remoteName << " has forwarded the call" << endl;
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break;
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case H323Connection::EndedByRemoteUser :
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if (h323debug)
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cout << " -- " << remoteName << " has cleared the call" << endl;
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break;
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case H323Connection::EndedByCallerAbort :
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if (h323debug)
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cout << " -- " << remoteName << " has stopped calling" << endl;
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break;
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case H323Connection::EndedByRefusal :
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if (h323debug)
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cout << " -- " << remoteName << " did not accept your call" << endl;
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break;
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case H323Connection::EndedByRemoteBusy :
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if (h323debug)
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cout << " -- " << remoteName << " was busy" << endl;
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break;
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case H323Connection::EndedByRemoteCongestion :
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if (h323debug)
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cout << " -- Congested link to " << remoteName << endl;
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break;
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case H323Connection::EndedByNoAnswer :
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if (h323debug)
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cout << " -- " << remoteName << " did not answer your call" << endl;
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break;
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case H323Connection::EndedByTransportFail :
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if (h323debug)
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cout << " -- Call with " << remoteName << " ended abnormally" << endl;
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break;
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case H323Connection::EndedByCapabilityExchange :
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if (h323debug)
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cout << " -- Could not find common codec with " << remoteName << endl;
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break;
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case H323Connection::EndedByNoAccept :
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if (h323debug)
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cout << " -- Did not accept incoming call from " << remoteName << endl;
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break;
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case H323Connection::EndedByAnswerDenied :
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if (h323debug)
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cout << " -- Refused incoming call from " << remoteName << endl;
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break;
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case H323Connection::EndedByNoUser :
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if (h323debug)
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cout << " -- Remote endpoint could not find user: " << remoteName << endl;
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break;
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case H323Connection::EndedByNoBandwidth :
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if (h323debug)
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cout << " -- Call to " << remoteName << " aborted, insufficient bandwidth." << endl;
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break;
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case H323Connection::EndedByUnreachable :
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if (h323debug)
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cout << " -- " << remoteName << " could not be reached." << endl;
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break;
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case H323Connection::EndedByHostOffline :
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if (h323debug)
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cout << " -- " << remoteName << " is not online." << endl;
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break;
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case H323Connection::EndedByNoEndPoint :
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if (h323debug)
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cout << " -- No phone running for " << remoteName << endl;
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break;
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case H323Connection::EndedByConnectFail :
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if (h323debug)
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cout << " -- Transport error calling " << remoteName << endl;
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break;
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default :
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if (h323debug)
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cout << " -- Call with " << remoteName << " completed" << endl;
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}
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if(connection.IsEstablished())
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if (h323debug)
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cout << " -- Call duration " << setprecision(0) << setw(5) << (PTime() - connection.GetConnectionStartTime()) << endl;
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}
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H323Connection * MyH323EndPoint::CreateConnection(unsigned callReference, void *outbound)
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{
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unsigned options = 0;
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if (noFastStart)
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options |= H323Connection::FastStartOptionDisable;
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if (noH245Tunnelling)
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options |= H323Connection::H245TunnelingOptionDisable;
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return new MyH323Connection(*this, callReference, options);
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}
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/* MyH323Connection */
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MyH323Connection::MyH323Connection(MyH323EndPoint & ep,
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unsigned callReference,
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unsigned options)
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: H323Connection(ep,
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callReference,
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options)
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{
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remoteIpAddress = 0; // IP Address of remote endpoint
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remotePort = 0; // remote endpoint Data port (control is dataPort+1)
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if (h323debug)
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cout << " == New H.323 Connection created." << endl;
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return;
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}
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MyH323Connection::~MyH323Connection()
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{
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if (h323debug)
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cout << " == H.323 Connection deleted." << endl;
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return;
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}
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H323Connection::AnswerCallResponse MyH323Connection::OnAnswerCall(const PString & caller,
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const H323SignalPDU & /*setupPDU*/,
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H323SignalPDU & /*connectPDU*/)
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{
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/* The call will be answered later with "AnsweringCall()" function.
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*/
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return H323Connection::AnswerCallAlertWithMedia;
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}
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BOOL MyH323Connection::OnAlerting(const H323SignalPDU & /*alertingPDU*/, const PString & username)
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{
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if (h323debug)
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cout << " -- Ringing phone for \"" << username << "\"" << endl;
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return TRUE;
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}
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BOOL MyH323Connection::OnReceivedSignalSetup(const H323SignalPDU & setupPDU)
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{
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if (h323debug)
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cout << " -- Received SETUP message..." << endl;
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call_details_t cd;
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PString sourceE164;
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PString destE164;
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PString sourceAliases;
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PString destAliases;
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PString sourceIp;
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PIPSocket::Address Ip;
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WORD sourcePort;
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sourceAliases = setupPDU.GetSourceAliases();
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destAliases = setupPDU.GetDestinationAlias();
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sourceE164 = "";
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setupPDU.GetSourceE164(sourceE164);
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destE164 = "";
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setupPDU.GetDestinationE164(destE164);
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|
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/* Convert complex strings */
|
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// FIXME: deal more than one source alias
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char *s;
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if ((s = strchr(sourceAliases, ' ')) != NULL)
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*s = '\0';
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if ((s = strchr(sourceAliases, '\t')) != NULL)
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*s = '\0';
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char *s1;
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if ((s1 = strchr(destAliases, ' ')) != NULL)
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*s1 = '\0';
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if ((s1 = strchr(destAliases, '\t')) != NULL)
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*s1 = '\0';
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GetSignallingChannel()->GetRemoteAddress().GetIpAndPort(Ip, sourcePort);
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sourceIp = Ip.AsString();
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cd.call_reference = GetCallReference();
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cd.call_token = (const char *)GetCallToken();
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cd.call_source_aliases = (const char *)sourceAliases;
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cd.call_dest_alias = (const char *)destAliases;
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cd.call_source_e164 = (const char *)sourceE164;
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cd.call_dest_e164 = (const char *)destE164;
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cd.sourceIp = (const char *)sourceIp;
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/* Notify Asterisk of the request */
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int res = on_incoming_call(cd);
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if (!res) {
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if (h323debug)
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cout << " -- Call Failed" << endl;
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return FALSE;
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}
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return H323Connection::OnReceivedSignalSetup(setupPDU);
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}
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BOOL MyH323Connection::OnSendSignalSetup(H323SignalPDU & setupPDU)
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{
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call_details_t cd;
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|
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if (h323debug)
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cout << " -- Sending SETUP message" << endl;
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sourceAliases = setupPDU.GetSourceAliases();
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destAliases = setupPDU.GetDestinationAlias();
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sourceE164 = "";
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setupPDU.GetSourceE164(sourceE164);
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destE164 = "";
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setupPDU.GetDestinationE164(destE164);
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|
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/* Convert complex strings */
|
|
// FIXME: deal more than one source alias
|
|
char *s;
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if ((s = strchr(sourceAliases, ' ')) != NULL)
|
|
*s = '\0';
|
|
if ((s = strchr(sourceAliases, '\t')) != NULL)
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*s = '\0';
|
|
char *s1;
|
|
if ((s1 = strchr(destAliases, ' ')) != NULL)
|
|
*s1 = '\0';
|
|
if ((s1 = strchr(destAliases, '\t')) != NULL)
|
|
*s1 = '\0';
|
|
|
|
cd.call_reference = GetCallReference();
|
|
cd.call_token = (const char *)GetCallToken();
|
|
cd.call_source_aliases = (const char *)sourceAliases;
|
|
cd.call_dest_alias = (const char *)destAliases;
|
|
cd.call_source_e164 = (const char *)sourceE164;
|
|
cd.call_dest_e164 = (const char *)destE164;
|
|
|
|
int res = on_outgoing_call(cd);
|
|
|
|
if (!res) {
|
|
if (h323debug)
|
|
cout << " -- Call Failed" << endl;
|
|
return FALSE;
|
|
}
|
|
|
|
return H323Connection::OnSendSignalSetup(setupPDU);
|
|
}
|
|
|
|
BOOL MyH323Connection::OnSendReleaseComplete(H323SignalPDU & releaseCompletePDU)
|
|
{
|
|
if (h323debug)
|
|
cout << " -- Sending RELEASE COMPLETE" << endl;
|
|
return H323Connection::OnSendReleaseComplete(releaseCompletePDU);
|
|
}
|
|
|
|
BOOL MyH323Connection::OnReceivedFacility(const H323SignalPDU & pdu)
|
|
{
|
|
if (h323debug)
|
|
cout << " -- Received Facility message... " << endl;
|
|
return H323Connection::OnReceivedFacility(pdu);
|
|
}
|
|
|
|
void MyH323Connection::OnReceivedReleaseComplete(const H323SignalPDU & pdu)
|
|
{
|
|
if (h323debug)
|
|
cout << " -- Received RELEASE COMPLETE message..." << endl;
|
|
return H323Connection::OnReceivedReleaseComplete(pdu);
|
|
|
|
}
|
|
|
|
BOOL MyH323Connection::OnClosingLogicalChannel(H323Channel & channel)
|
|
{
|
|
if (h323debug)
|
|
cout << " -- Closing logical channel..." << endl;
|
|
return H323Connection::OnClosingLogicalChannel(channel);
|
|
}
|
|
|
|
|
|
void MyH323Connection::SendUserInputTone(char tone, unsigned duration)
|
|
{
|
|
if (h323debug)
|
|
cout << " -- Sending user input tone (" << tone << ") to remote" << endl;
|
|
|
|
on_send_digit(GetCallReference(), tone);
|
|
|
|
H323Connection::SendUserInputTone(tone, duration);
|
|
}
|
|
|
|
void MyH323Connection::OnUserInputTone(char tone, unsigned duration, unsigned logicalChannel, unsigned rtpTimestamp)
|
|
{
|
|
if (mode == H323_DTMF_INBAND) {
|
|
if (h323debug)
|
|
cout << " -- Received user input tone (" << tone << ") from remote" << endl;
|
|
on_send_digit(GetCallReference(), tone);
|
|
}
|
|
H323Connection::OnUserInputTone(tone, duration, logicalChannel, rtpTimestamp);
|
|
}
|
|
|
|
void MyH323Connection::OnUserInputString(const PString &value)
|
|
{
|
|
if (mode == H323_DTMF_RFC2833) {
|
|
if (h323debug)
|
|
cout << " -- Received user input string (" << value << ") from remote." << endl;
|
|
on_send_digit(GetCallReference(), value[0]);
|
|
}
|
|
}
|
|
|
|
H323Channel * MyH323Connection::CreateRealTimeLogicalChannel(const H323Capability & capability,
|
|
H323Channel::Directions dir,
|
|
unsigned sessionID,
|
|
const H245_H2250LogicalChannelParameters * /*param*/)
|
|
{
|
|
struct rtp_info *info;
|
|
WORD port;
|
|
|
|
/* Determine the Local (A side) IP Address and port */
|
|
info = on_create_connection(GetCallReference());
|
|
|
|
// if (bridging) {
|
|
// externalIpAddress = PIPSocket::Address(info->addr);
|
|
// } else {
|
|
GetControlChannel().GetLocalAddress().GetIpAndPort(externalIpAddress, port);
|
|
// }
|
|
|
|
// externalIpAddress = PIPSocket::Address("192.168.1.50");
|
|
|
|
externalPort = info->port;
|
|
|
|
if (h323debug) {
|
|
cout << " =*= In CreateRealTimeLogicalChannel for call " << GetCallReference() << endl;
|
|
cout << " -- externalIpAddress: " << externalIpAddress << endl;
|
|
cout << " -- externalPort: " << externalPort << endl;
|
|
cout << " -- SessionID: " << sessionID << endl;
|
|
cout << " -- Direction: " << dir << endl;
|
|
}
|
|
return new H323_ExternalRTPChannel(*this, capability, dir, sessionID, externalIpAddress, externalPort);
|
|
}
|
|
|
|
/** This callback function is invoked once upon creation of each
|
|
* channel for an H323 session
|
|
*/
|
|
BOOL MyH323Connection::OnStartLogicalChannel(H323Channel & channel)
|
|
{
|
|
if (h323debug) {
|
|
cout << " -- Started logical channel: ";
|
|
cout << ((channel.GetDirection()==H323Channel::IsTransmitter)?"sending ":((channel.GetDirection()==H323Channel::IsReceiver)?"receiving ":" "));
|
|
cout << (const char *)(channel.GetCapability()).GetFormatName() << endl;
|
|
}
|
|
// adjust the count of channels we have open
|
|
channelsOpen++;
|
|
if (h323debug)
|
|
cout << " -- channelsOpen = " << channelsOpen << endl;
|
|
|
|
H323_ExternalRTPChannel & external = (H323_ExternalRTPChannel &)channel;
|
|
external.GetRemoteAddress(remoteIpAddress, remotePort);
|
|
|
|
if (h323debug) {
|
|
cout << " -- remoteIpAddress: " << remoteIpAddress << endl;
|
|
cout << " -- remotePort: " << remotePort << endl;
|
|
cout << " -- ExternalIpAddress: " << externalIpAddress << endl;
|
|
cout << " -- ExternalPort: " << externalPort << endl;
|
|
}
|
|
/* Notify Asterisk of remote RTP information */
|
|
on_start_logical_channel(GetCallReference(), (const char *)remoteIpAddress.AsString(), remotePort);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#if 0
|
|
MyGatekeeperServer::MyGatekeeperServer(MyH323EndPoint & ep)
|
|
: H323GatekeeperServer(ep),
|
|
endpoint(ep)
|
|
{
|
|
}
|
|
|
|
|
|
BOOL MyGatekeeperServer::Initialise()
|
|
{
|
|
PINDEX i;
|
|
|
|
PWaitAndSignal mutex(reconfigurationMutex);
|
|
|
|
SetGatekeeperIdentifier("TESTIES");
|
|
|
|
// Interfaces to listen on
|
|
H323TransportAddressArray interfaces;
|
|
interfaces.Append(new H323TransportAddress(0.0.0.0);
|
|
AddListeners(interfaces);
|
|
|
|
// lots more to come
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
/** IMPLEMENTATION OF C FUNCTIONS */
|
|
|
|
/**
|
|
* The extern "C" directive takes care for
|
|
* the ANSI-C representation of linkable symbols
|
|
*/
|
|
extern "C" {
|
|
|
|
int end_point_exist(void)
|
|
{
|
|
if (!endPoint) {
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void h323_end_point_create(void)
|
|
{
|
|
channelsOpen = 0;
|
|
localProcess = new MyProcess();
|
|
localProcess->Main();
|
|
}
|
|
|
|
void h323_gk_urq(void)
|
|
{
|
|
if (!end_point_exist()) {
|
|
cout << " ERROR: [h323_gk_urq] No Endpoint, this is bad" << endl;
|
|
return;
|
|
}
|
|
|
|
endPoint->RemoveGatekeeper();
|
|
}
|
|
|
|
void h323_end_process(void)
|
|
{
|
|
delete localProcess;
|
|
}
|
|
|
|
void h323_debug(int flag, unsigned level)
|
|
{
|
|
if (flag)
|
|
PTrace:: SetLevel(level);
|
|
else
|
|
PTrace:: SetLevel(0);
|
|
}
|
|
|
|
/** Installs the callback functions on behalf of the PBX application */
|
|
void h323_callback_register(setup_incoming_cb ifunc,
|
|
setup_outbound_cb sfunc,
|
|
on_connection_cb confunc,
|
|
start_logchan_cb lfunc,
|
|
clear_con_cb clfunc,
|
|
con_established_cb efunc,
|
|
send_digit_cb dfunc)
|
|
{
|
|
on_incoming_call = ifunc;
|
|
on_outgoing_call = sfunc;
|
|
on_create_connection = confunc;
|
|
on_start_logical_channel = lfunc;
|
|
on_connection_cleared = clfunc;
|
|
on_connection_established = efunc;
|
|
on_send_digit = dfunc;
|
|
}
|
|
|
|
/**
|
|
* Add capability to the capability table of the end point.
|
|
*/
|
|
int h323_set_capability(int cap, int dtmfMode)
|
|
{
|
|
int g711Frames = 30;
|
|
int gsmFrames = 4;
|
|
|
|
|
|
if (!end_point_exist()) {
|
|
cout << " ERROR: [h323_set_capablity] No Endpoint, this is bad" << endl;
|
|
return 1;
|
|
}
|
|
|
|
mode = dtmfMode;
|
|
if (dtmfMode == H323_DTMF_INBAND)
|
|
endPoint->SetSendUserInputMode(H323Connection::SendUserInputAsTone);
|
|
else
|
|
endPoint->SetSendUserInputMode(H323Connection::SendUserInputAsInlineRFC2833);
|
|
|
|
|
|
/* Hardcode this for now (Someone tell me if T.38 works now
|
|
or provide me with some debug so we can make this work */
|
|
|
|
// endPoint->SetCapability(0, 0, new H323_T38Capability(H323_T38Capability::e_UDP));
|
|
|
|
if (cap & AST_FORMAT_SPEEX) {
|
|
/* Not real sure if Asterisk acutally supports all
|
|
of the various different bit rates so add them
|
|
all and figure it out later*/
|
|
|
|
endPoint->SetCapability(0, 0, new SpeexNarrow2AudioCapability());
|
|
endPoint->SetCapability(0, 0, new SpeexNarrow3AudioCapability());
|
|
endPoint->SetCapability(0, 0, new SpeexNarrow4AudioCapability());
|
|
endPoint->SetCapability(0, 0, new SpeexNarrow5AudioCapability());
|
|
endPoint->SetCapability(0, 0, new SpeexNarrow6AudioCapability());
|
|
}
|
|
|
|
#if WANT_G729
|
|
if (cap & AST_FORMAT_G729A) {
|
|
H323_G729ACapability *g729aCap;
|
|
endPoint->SetCapability(0, 0, g729aCap = new H323_G729ACapability);
|
|
}
|
|
#endif
|
|
|
|
if (cap & AST_FORMAT_G723_1) {
|
|
H323_G7231Capability *g7231Cap;
|
|
endPoint->SetCapability(0, 0, g7231Cap = new H323_G7231Capability);
|
|
}
|
|
|
|
if (cap & AST_FORMAT_GSM) {
|
|
H323_GSM0610Capability *gsmCap;
|
|
endPoint->SetCapability(0, 0, gsmCap = new H323_GSM0610Capability);
|
|
gsmCap->SetTxFramesInPacket(gsmFrames);
|
|
}
|
|
|
|
if (cap & AST_FORMAT_ULAW) {
|
|
|
|
H323_G711Capability *g711uCap;
|
|
endPoint->SetCapability(0, 0, g711uCap = new H323_G711Capability(H323_G711Capability::muLaw));
|
|
g711uCap->SetTxFramesInPacket(g711Frames);
|
|
}
|
|
|
|
if (cap & AST_FORMAT_ALAW) {
|
|
H323_G711Capability *g711aCap;
|
|
endPoint->SetCapability(0, 0, g711aCap = new H323_G711Capability(H323_G711Capability::ALaw));
|
|
g711aCap->SetTxFramesInPacket(g711Frames);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** Start the H.323 listener */
|
|
int h323_start_listener(int listenPort, struct sockaddr_in bindaddr)
|
|
{
|
|
|
|
if (!end_point_exist()) {
|
|
cout << "ERROR: [h323_start_listener] No Endpoint, this is bad!" << endl;
|
|
return 1;
|
|
}
|
|
|
|
PIPSocket::Address interfaceAddress(bindaddr.sin_addr);
|
|
|
|
if (!listenPort)
|
|
listenPort = 1720;
|
|
|
|
tcpListener = new H323ListenerTCP(*endPoint, interfaceAddress, (WORD)listenPort);
|
|
|
|
if (!endPoint->StartListener(tcpListener)) {
|
|
cout << "ERROR: Could not open H.323 listener port on " << ((H323ListenerTCP *) tcpListener)->GetListenerPort() << endl;
|
|
delete tcpListener;
|
|
return 1;
|
|
|
|
}
|
|
|
|
// cout << " == H.323 listener started on " << ((H323ListenerTCP *) tcpListener)->GetTransportAddress() << endl;
|
|
cout << " == H.323 listener started" << endl;
|
|
|
|
return 0;
|
|
};
|
|
|
|
|
|
int h323_set_alias(struct oh323_alias *alias)
|
|
{
|
|
char *p;
|
|
char *num;
|
|
PString h323id(alias->name);
|
|
PString e164(alias->e164);
|
|
|
|
if (!end_point_exist()) {
|
|
cout << "ERROR: [h323_set_alias] No Endpoint, this is bad!" << endl;
|
|
return 1;
|
|
}
|
|
|
|
cout << " == Adding alias \"" << h323id << "\" to endpoint" << endl;
|
|
endPoint->AddAliasName(h323id);
|
|
|
|
endPoint->RemoveAliasName(localProcess->GetUserName());
|
|
|
|
if (!e164.IsEmpty()) {
|
|
cout << " == Adding E.164 \"" << e164 << "\" to endpoint" << endl;
|
|
endPoint->AddAliasName(e164);
|
|
}
|
|
if (strlen(alias->prefix)) {
|
|
p = alias->prefix;
|
|
num = strsep(&p, ",");
|
|
while(num) {
|
|
cout << " == Adding Prefix \"" << num << "\" to endpoint" << endl;
|
|
endPoint->SupportedPrefixes += PString(num);
|
|
endPoint->SetGateway();
|
|
num = strsep(&p, ",");
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void h323_set_id(char *id)
|
|
{
|
|
PString h323id(id);
|
|
|
|
if (h323debug) {
|
|
cout << " == Using '" << h323id << "' as our H.323ID for this call" << endl;
|
|
}
|
|
|
|
/* EVIL HACK */
|
|
endPoint->SetLocalUserName(h323id);
|
|
}
|
|
|
|
/** Establish Gatekeeper communiations, if so configured,
|
|
* register aliases for the H.323 endpoint to respond to.
|
|
*/
|
|
int h323_set_gk(int gatekeeper_discover, char *gatekeeper, char *secret)
|
|
{
|
|
PString gkName = PString(gatekeeper);
|
|
PString pass = PString(secret);
|
|
|
|
if (!end_point_exist()) {
|
|
cout << "ERROR: [h323_set_gk] No Endpoint, this is bad!" << endl;
|
|
return 1;
|
|
}
|
|
|
|
if (!gatekeeper) {
|
|
cout << "Error: Gatekeeper cannot be NULL" << endl;
|
|
return 1;
|
|
}
|
|
|
|
if (strlen(secret)) {
|
|
endPoint->SetGatekeeperPassword(pass);
|
|
}
|
|
|
|
|
|
if (gatekeeper_discover) {
|
|
/* discover the gk using multicast */
|
|
if (endPoint->DiscoverGatekeeper(new H323TransportUDP(*endPoint))) {
|
|
cout << " == Using " << (endPoint->GetGatekeeper())->GetName() << " as our Gatekeeper." << endl;
|
|
} else {
|
|
cout << " *** Could not find a gatekeeper." << endl;
|
|
return 1;
|
|
}
|
|
} else {
|
|
/* Gatekeeper operations */
|
|
H323TransportUDP *rasChannel = new H323TransportUDP(*endPoint);
|
|
|
|
if (!rasChannel) {
|
|
cout << " *** No RAS Channel, this is bad" << endl;
|
|
return 1;
|
|
}
|
|
if (endPoint->SetGatekeeper(gkName, rasChannel)) {
|
|
cout << " == Using " << (endPoint->GetGatekeeper())->GetName() << " as our Gatekeeper." << endl;
|
|
} else {
|
|
cout << " *** Error registering with gatekeeper \"" << gkName << "\". " << endl;
|
|
|
|
/* XXX Maybe we should fire a new thread to attempt to re-register later and not kill asterisk here? */
|
|
|
|
// delete rasChannel;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** Send a DTMF tone over the H323Connection with the
|
|
* specified token.
|
|
*/
|
|
void h323_send_tone(const char *call_token, char tone)
|
|
{
|
|
if (!end_point_exist()) {
|
|
cout << "ERROR: [h323_send_tone] No Endpoint, this is bad!" << endl;
|
|
return;
|
|
}
|
|
|
|
PString token = PString(call_token);
|
|
endPoint->SendUserTone(token, tone);
|
|
}
|
|
|
|
/** Make a call to the remote endpoint.
|
|
*/
|
|
int h323_make_call(char *host, call_details_t *cd, call_options_t call_options)
|
|
{
|
|
int res;
|
|
PString token;
|
|
|
|
if (!end_point_exist()) {
|
|
return 1;
|
|
}
|
|
|
|
PString dest(host);
|
|
|
|
res = endPoint->MakeCall(dest, token, &cd->call_reference, call_options.port, call_options.callerid);
|
|
memcpy((char *)(cd->call_token), (const unsigned char *)token, token.GetLength());
|
|
|
|
return res;
|
|
};
|
|
|
|
int h323_clear_call(const char *call_token)
|
|
{
|
|
if (!end_point_exist()) {
|
|
return 1;
|
|
}
|
|
|
|
ClearCallThread *clearCallThread = new ClearCallThread(call_token);
|
|
clearCallThread->WaitForTermination();
|
|
|
|
return 0;
|
|
};
|
|
|
|
/** This function tells the h.323 stack to either
|
|
answer or deny an incoming call */
|
|
int h323_answering_call(const char *token, int busy)
|
|
{
|
|
const PString currentToken(token);
|
|
|
|
H323Connection * connection;
|
|
|
|
connection = endPoint->FindConnectionWithLock(currentToken);
|
|
|
|
if (connection == NULL) {
|
|
cout << "No connection found for " << token << endl;
|
|
return -1;
|
|
}
|
|
|
|
if (!busy){
|
|
connection->AnsweringCall(H323Connection::AnswerCallNow);
|
|
connection->Unlock();
|
|
|
|
} else {
|
|
connection->AnsweringCall(H323Connection::AnswerCallDenied);
|
|
connection->Unlock();
|
|
};
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int h323_show_codec(int fd, int argc, char *argv[])
|
|
{
|
|
cout << "Allowed Codecs:\n\t" << setprecision(2) << endPoint->GetCapabilities() << endl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* alas, this doesn't work :( */
|
|
void h323_native_bridge(const char *token, char *them, char *capability)
|
|
{
|
|
H323Channel *channel;
|
|
MyH323Connection *connection = (MyH323Connection *)endPoint->FindConnectionWithLock(token);
|
|
PString mode(capability);
|
|
|
|
if (!mode) {
|
|
return;
|
|
}
|
|
|
|
if (!connection){
|
|
cout << "ERROR: No connection found, this is bad\n";
|
|
return;
|
|
}
|
|
|
|
cout << "Native Bridge: them [" << them << "]" << endl;
|
|
|
|
channel = connection->FindChannel(connection->sessionId, TRUE);
|
|
connection->bridging = TRUE;
|
|
connection->CloseLogicalChannelNumber(channel->GetNumber());
|
|
connection->RequestModeChange(mode);
|
|
connection->Unlock();
|
|
return;
|
|
|
|
}
|
|
|
|
} /* extern "C" */
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