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yate/modules/h323chan.cpp

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/**
* h323chan.cpp
* This file is part of the YATE Project http://YATE.null.ro
*
* As a special exception to the GNU General Public License, permission is
* granted for additional uses of the text contained in this release of Yate
* as noted here.
* This exception is that permission is hereby granted to link Yate with the
* OpenH323 and PWLIB runtime libraries to produce an executable image.
*
* H.323 channel
*
* Yet Another Telephony Engine - a fully featured software PBX and IVR
* Copyright (C) 2004-2006 Null Team
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <ptlib.h>
#include <h323.h>
#include <h323pdu.h>
#include <h323caps.h>
#include <ptclib/delaychan.h>
#include <gkserver.h>
/* For some reason the Windows version of OpenH323 #undefs the version.
* You need to put a openh323version.h file somewhere in your include path,
* preferably in the OpenH323 include directory.
* Make sure you keep that file in sync with your other OpenH323 components.
* You can find a template for that below:
--- cut here ---
#ifndef OPENH323_MAJOR
#define OPENH323_MAJOR 1
#define OPENH323_MINOR 0
#define OPENH323_BUILD 0
#endif
--- cut here ---
*/
#ifdef _WINDOWS
#include <openh323version.h>
#endif
#ifndef OPENH323_VERSION
#define OPENH323_VERSION "SomethingOld"
#endif
/* Define a easily comparable version, 2 digits for each component */
#define OPENH323_NUMVERSION ((OPENH323_MAJOR)*10000 + (OPENH323_MINOR)*100 + (OPENH323_BUILD))
#if (OPENH323_NUMVERSION < 11202)
#error Open H323 version too old
#endif
/* Guess if we have a QOS parameter to the RTP channel creation */
#if (OPENH323_NUMVERSION >= 11304)
#define NEED_RTP_QOS_PARAM 1
#endif
#if (OPENH323_NUMVERSION >= 11404)
#define USE_CAPABILITY_FACTORY
#endif
#include <yatephone.h>
#include <yateversn.h>
#include <string.h>
using namespace TelEngine;
namespace { // anonymous
static bool s_externalRtp;
static bool s_fallbackRtp;
static bool s_passtrough;
static int s_maxCleaning = 0;
static Configuration s_cfg;
static Mutex s_mutex;
static int s_connCount = 0;
static int s_chanCount = 0;
static TokenDict dict_str2code[] = {
{ "alpha" , PProcess::AlphaCode },
{ "beta" , PProcess::BetaCode },
{ "release" , PProcess::ReleaseCode },
{ 0 , 0 },
};
const char* h323_formats[] = {
"G.711-ALaw-64k", "alaw",
"G.711-uLaw-64k", "mulaw",
"GSM-06.10", "gsm",
"MS-GSM", "msgsm",
"SpeexNarrow", "speex",
"LPC-10", "lpc10",
"iLBC-15k2", "ilbc20",
"iLBC-13k3", "ilbc30",
"G.723", "g723",
"G.726", "g726",
"G.728", "g728",
"G.729", "g729",
"PCM-16", "slin",
#if 0
"G.729A", "g729a",
"G.729B", "g729b",
"G.729A/B", "g729ab",
"G.723.1", "g723.1",
"G.723.1(5.3k)", "g723.1-5k3",
"G.723.1A(5.3k)", "g723.1a-5k3",
"G.723.1A(6.3k)", "g723.1a-6k3",
"G.723.1A(6.3k)-Cisco", "g723.1a-6k3-cisco",
"G.726-16k", "g726-16",
"G.726-24k", "g726-24",
"G.726-32k", "g726-32",
"G.726-40k", "g726-40",
"iLBC", "ilbc",
"SpeexNarrow-18.2k", "speex-18k2",
"SpeexNarrow-15k", "speex-15k",
"SpeexNarrow-11k", "speex-11k",
"SpeexNarrow-8k", "speex-8k",
"SpeexNarrow-5.95k", "speex-5k95",
#endif
0
};
static TokenDict dict_h323_dir[] = {
{ "receive", H323Channel::IsReceiver },
{ "send", H323Channel::IsTransmitter },
{ "bidir", H323Channel::IsBidirectional },
{ 0 , 0 },
};
static TokenDict dict_silence[] = {
{ "none", H323AudioCodec::NoSilenceDetection },
{ "fixed", H323AudioCodec::FixedSilenceDetection },
{ "adaptive", H323AudioCodec::AdaptiveSilenceDetection },
{ 0 , 0 },
};
static TokenDict dict_errors[] = {
{ "noroute", H323Connection::EndedByUnreachable },
{ "noroute", H323Connection::EndedByNoUser },
{ "noconn", H323Connection::EndedByNoEndPoint },
{ "nomedia", H323Connection::EndedByCapabilityExchange },
{ "nomedia", H323Connection::EndedByNoBandwidth },
{ "busy", H323Connection::EndedByLocalBusy },
{ "busy", H323Connection::EndedByRemoteBusy },
{ "rejected", H323Connection::EndedByRefusal },
{ "rejected", H323Connection::EndedByNoAccept },
{ "forbidden", H323Connection::EndedBySecurityDenial },
{ "congestion", H323Connection::EndedByLocalCongestion },
{ "congestion", H323Connection::EndedByRemoteCongestion },
{ "offline", H323Connection::EndedByHostOffline },
{ "timeout", H323Connection::EndedByDurationLimit },
{ 0 , 0 },
};
static const char* CallEndReasonText(int reason)
{
#define MAKE_END_REASON(r) case H323Connection::r: return #r
switch (reason) {
MAKE_END_REASON(EndedByLocalUser);
MAKE_END_REASON(EndedByNoAccept);
MAKE_END_REASON(EndedByAnswerDenied);
MAKE_END_REASON(EndedByRemoteUser);
MAKE_END_REASON(EndedByRefusal);
MAKE_END_REASON(EndedByNoAnswer);
MAKE_END_REASON(EndedByCallerAbort);
MAKE_END_REASON(EndedByTransportFail);
MAKE_END_REASON(EndedByConnectFail);
MAKE_END_REASON(EndedByGatekeeper);
MAKE_END_REASON(EndedByNoUser);
MAKE_END_REASON(EndedByNoBandwidth);
MAKE_END_REASON(EndedByCapabilityExchange);
MAKE_END_REASON(EndedByCallForwarded);
MAKE_END_REASON(EndedBySecurityDenial);
MAKE_END_REASON(EndedByLocalBusy);
MAKE_END_REASON(EndedByLocalCongestion);
MAKE_END_REASON(EndedByRemoteBusy);
MAKE_END_REASON(EndedByRemoteCongestion);
MAKE_END_REASON(EndedByUnreachable);
MAKE_END_REASON(EndedByNoEndPoint);
MAKE_END_REASON(EndedByHostOffline);
MAKE_END_REASON(EndedByTemporaryFailure);
MAKE_END_REASON(EndedByQ931Cause);
MAKE_END_REASON(EndedByDurationLimit);
MAKE_END_REASON(EndedByInvalidConferenceID);
case H323Connection::NumCallEndReasons: return "CallStillActive";
default: return "UnlistedCallEndReason";
}
#undef MAKE_END_REASON
}
static bool isE164(const char* str)
{
if (!(str && *str))
return false;
for (;;) {
switch (*str++) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '*':
case '#':
continue;
case 0:
return true;
default:
return false;
}
}
}
static int cleaningCount()
{
Lock lock(s_mutex);
return s_connCount - s_chanCount;
}
class H323Process : public PProcess
{
PCLASSINFO(H323Process, PProcess)
H323Process()
: PProcess(
s_cfg.getValue("general","vendor","Null Team"),
s_cfg.getValue("general","product","YATE"),
(unsigned short)s_cfg.getIntValue("general","major",YATE_MAJOR),
(unsigned short)s_cfg.getIntValue("general","minor",YATE_MINOR),
(PProcess::CodeStatus)s_cfg.getIntValue("general","status",dict_str2code,PProcess::AlphaCode),
(unsigned short)s_cfg.getIntValue("general","build",YATE_BUILD)
)
{ Resume(); }
public:
void Main()
{ }
};
class YateGkRegThread;
class YateH323EndPoint;
class YateGatekeeperServer;
class YateH323EndPoint;
class YateH323Chan;
class H323Driver : public Driver
{
friend class YateH323EndPoint;
public:
H323Driver();
virtual ~H323Driver();
virtual void initialize();
virtual bool msgExecute(Message& msg, String& dest);
virtual bool msgRoute(Message& msg);
virtual bool received(Message &msg, int id);
virtual void statusParams(String& str);
void cleanup();
YateH323EndPoint* findEndpoint(const String& ep) const;
private:
ObjList m_endpoints;
};
H323Process* s_process = 0;
static H323Driver hplugin;
class YateGatekeeperCall : public H323GatekeeperCall
{
PCLASSINFO(YateGatekeeperCall, H323GatekeeperCall);
public:
YateGatekeeperCall(
YateGatekeeperServer& server,
const OpalGloballyUniqueID& callIdentifier, /// Unique call identifier
Direction direction
);
virtual H323GatekeeperRequest::Response OnAdmission(
H323GatekeeperARQ& request
);
};
class YateGatekeeperServer : public H323GatekeeperServer
{
PCLASSINFO(YateGatekeeperServer, H323GatekeeperServer);
public:
YateGatekeeperServer(YateH323EndPoint& ep);
BOOL Init();
H323GatekeeperRequest::Response OnRegistration(
H323GatekeeperRRQ& request);
H323GatekeeperRequest::Response OnUnregistration(
H323GatekeeperURQ& request);
H323GatekeeperCall* CreateCall(const OpalGloballyUniqueID& id,H323GatekeeperCall::Direction dir);
BOOL TranslateAliasAddressToSignalAddress(const H225_AliasAddress& alias,H323TransportAddress& address);
virtual BOOL GetUsersPassword(const PString& alias,PString& password) const;
private:
YateH323EndPoint& m_endpoint;
};
class YateH323AudioSource : public DataSource, public PIndirectChannel
{
PCLASSINFO(YateH323AudioSource, PIndirectChannel)
YCLASS(YateH323AudioSource, DataSource)
public:
YateH323AudioSource()
: m_exit(false)
{ Debug(&hplugin,DebugAll,"YateH323AudioSource::YateH323AudioSource() [%p]",this); }
~YateH323AudioSource();
virtual BOOL Close();
virtual BOOL IsOpen() const;
virtual BOOL Write(const void *buf, PINDEX len);
private:
PAdaptiveDelay writeDelay;
DataBlock m_data;
bool m_exit;
};
class YateH323AudioConsumer : public DataConsumer, public PIndirectChannel
{
PCLASSINFO(YateH323AudioConsumer, PIndirectChannel)
YCLASS(YateH323AudioConsumer, DataConsumer)
public:
YateH323AudioConsumer()
: m_exit(false)
{ Debug(&hplugin,DebugAll,"YateH323AudioConsumer::YateH323AudioConsumer() [%p]",this); }
~YateH323AudioConsumer();
virtual BOOL Close();
virtual BOOL IsOpen() const;
virtual BOOL Read(void *buf, PINDEX len);
virtual void Consume(const DataBlock &data, unsigned long tStamp);
private:
PAdaptiveDelay readDelay;
DataBlock m_buffer;
bool m_exit;
Mutex m_mutex;
};
class YateH323_ExternalRTPChannel;
class YateH323EndPoint : public String, public H323EndPoint
{
PCLASSINFO(YateH323EndPoint, H323EndPoint)
public:
enum GkMode {
ByAddr,
ByName,
Discover,
Unregister
};
YateH323EndPoint(const NamedList* params = 0, const char* name = 0);
~YateH323EndPoint();
virtual H323Connection* CreateConnection(unsigned callReference, void* userData,
H323Transport* transport, H323SignalPDU* setupPDU);
bool Init(const NamedList* params = 0);
bool startGkClient(int mode, int retry = 0, const char* name = "");
void stopGkClient();
void asyncGkClient(int mode, const PString& name, int retry);
protected:
bool internalGkClient(int mode, const PString& name);
YateGatekeeperServer* m_gkServer;
YateGkRegThread* m_thread;
};
class YateH323Connection : public H323Connection, public DebugEnabler
{
PCLASSINFO(YateH323Connection, H323Connection)
friend class YateH323Chan;
public:
YateH323Connection(YateH323EndPoint& endpoint, H323Transport* transport, unsigned callReference, void* userdata);
~YateH323Connection();
virtual H323Connection::AnswerCallResponse OnAnswerCall(const PString& caller,
const H323SignalPDU& signalPDU, H323SignalPDU& connectPDU);
virtual void OnEstablished();
virtual void OnCleared();
virtual BOOL OnAlerting(const H323SignalPDU& alertingPDU, const PString& user);
virtual BOOL OnReceivedProgress(const H323SignalPDU& pdu);
virtual void OnUserInputTone(char tone, unsigned duration, unsigned logicalChannel, unsigned rtpTimestamp);
virtual void OnUserInputString(const PString& value);
virtual BOOL OpenAudioChannel(BOOL isEncoding, unsigned bufferSize,
H323AudioCodec &codec);
virtual void OnSetLocalCapabilities();
#ifdef NEED_RTP_QOS_PARAM
virtual H323Channel* CreateRealTimeLogicalChannel(const H323Capability& capability,H323Channel::Directions dir,unsigned sessionID,const H245_H2250LogicalChannelParameters* param,RTP_QOS* rtpqos = NULL);
#else
virtual H323Channel* CreateRealTimeLogicalChannel(const H323Capability& capability,H323Channel::Directions dir,unsigned sessionID,const H245_H2250LogicalChannelParameters* param);
#endif
virtual BOOL OnStartLogicalChannel(H323Channel& channel);
virtual BOOL OnCreateLogicalChannel(const H323Capability& capability, H323Channel::Directions dir, unsigned& errorCode);
virtual BOOL OpenLogicalChannel(const H323Capability& capability, unsigned sessionID, H323Channel::Directions dir);
virtual void CleanUpOnCallEnd();
BOOL startExternalRTP(const char* remoteIP, WORD remotePort, H323Channel::Directions dir, YateH323_ExternalRTPChannel* chan);
void stoppedExternal(H323Channel::Directions dir);
void setRemoteAddress(const char* remoteIP, WORD remotePort);
void cleanups(bool closeChans = true, bool dropChan = true);
bool sendTone(Message& msg, const char* tone);
void setCallerID(const char* number, const char* name);
void rtpExecuted(Message& msg);
void rtpForward(Message& msg, bool init = false);
void answerCall(AnswerCallResponse response);
static BOOL decodeCapability(const H323Capability& capability, const char** dataFormat, int* payload = 0, String* capabName = 0);
inline bool hasRemoteAddress() const
{ return m_passtrough && (m_remotePort > 0); }
inline bool nativeRtp() const
{ return m_nativeRtp; }
private:
String m_chanId;
YateH323Chan* m_chan;
Mutex* m_mutex;
bool m_externalRtp;
bool m_nativeRtp;
bool m_passtrough;
String m_formats;
String m_rtpid;
String m_rtpAddr;
int m_rtpPort;
String m_remoteFormats;
String m_remoteAddr;
int m_remotePort;
bool m_needMedia;
};
// this part has been inspired (more or less) from chan_h323 of project asterisk, credits to Jeremy McNamara for chan_h323 and to Mark Spencer for asterisk.
class YateH323_ExternalRTPChannel : public H323_ExternalRTPChannel
{
PCLASSINFO(YateH323_ExternalRTPChannel, H323_ExternalRTPChannel);
public:
/* Create a new channel. */
YateH323_ExternalRTPChannel(
YateH323Connection& connection,
const H323Capability& capability,
Directions direction,
unsigned sessionID,
const PIPSocket::Address& ip,
WORD dataPort);
/* Destructor */
~YateH323_ExternalRTPChannel();
virtual BOOL Start();
virtual BOOL OnReceivedAckPDU(const H245_H2250LogicalChannelAckParameters& param);
virtual BOOL OnSendingPDU(H245_H2250LogicalChannelParameters& param);
virtual BOOL OnReceivedPDU(const H245_H2250LogicalChannelParameters& param,unsigned& errorCode);
virtual void OnSendOpenAck(H245_H2250LogicalChannelAckParameters& param);
private:
YateH323Connection* m_conn;
};
class YateH323Chan : public Channel
{
friend class YateH323Connection;
public:
YateH323Chan(YateH323Connection* conn,Message* msg,const char* addr);
~YateH323Chan();
PChannel* openAudioChannel(BOOL isEncoding);
bool stopDataLinks();
void hangup(bool dropChan = true, bool clearCall = true);
void finish();
virtual void zeroRefs();
virtual void disconnected(bool final, const char *reason);
virtual bool msgProgress(Message& msg);
virtual bool msgRinging(Message& msg);
virtual bool msgAnswered(Message& msg);
virtual bool msgTone(Message& msg, const char* tone);
virtual bool msgText(Message& msg, const char* text);
virtual bool callRouted(Message& msg);
virtual void callAccept(Message& msg);
virtual void callRejected(const char* error, const char* reason, const Message* msg);
virtual bool setDebug(Message& msg);
inline void setTarget(const char* targetid)
{ m_targetid = targetid; }
private:
YateH323Connection* m_conn;
bool m_hungup;
};
class YateGkRegThread : public PThread
{
PCLASSINFO(YateGkRegThread, PThread);
public:
YateGkRegThread(YateH323EndPoint* endpoint, int mode, int retry = 0, const char* name = "")
: PThread(10000), m_ep(endpoint), m_mode(mode), m_retry(retry), m_name(name)
{ }
void Main()
{ m_ep->asyncGkClient(m_mode,m_name,m_retry); }
protected:
YateH323EndPoint* m_ep;
int m_mode;
int m_retry;
PString m_name;
};
class UserHandler : public MessageHandler
{
public:
UserHandler()
: MessageHandler("user.login",140)
{ }
virtual bool received(Message &msg);
};
// start of fake capabilities code
class BaseG7231Capab : public H323AudioCapability
{
PCLASSINFO(BaseG7231Capab, H323AudioCapability);
public:
BaseG7231Capab(const char* fname, bool annexA = true)
: H323AudioCapability(7,4), m_name(fname), m_aa(annexA)
{ }
virtual PObject* Clone() const
// default copy constructor - take care!
{ return new BaseG7231Capab(*this); }
virtual unsigned GetSubType() const
{ return H245_AudioCapability::e_g7231; }
virtual PString GetFormatName() const
{ return m_name; }
virtual H323Codec* CreateCodec(H323Codec::Direction direction) const
{ return 0; }
virtual Comparison Compare(const PObject& obj) const
{
Comparison res = H323AudioCapability::Compare(obj);
if (res != EqualTo)
return res;
bool aa = static_cast<const BaseG7231Capab&>(obj).m_aa;
if (aa && !m_aa)
return LessThan;
if (m_aa && !aa)
return GreaterThan;
return EqualTo;
}
virtual BOOL OnSendingPDU(H245_AudioCapability& pdu, unsigned packetSize) const
{
pdu.SetTag(GetSubType());
H245_AudioCapability_g7231& g7231 = pdu;
g7231.m_maxAl_sduAudioFrames = packetSize;
g7231.m_silenceSuppression = m_aa;
return TRUE;
}
virtual BOOL OnReceivedPDU(const H245_AudioCapability& pdu, unsigned& packetSize)
{
if (pdu.GetTag() != H245_AudioCapability::e_g7231)
return FALSE;
const H245_AudioCapability_g7231& g7231 = pdu;
packetSize = g7231.m_maxAl_sduAudioFrames;
m_aa = (g7231.m_silenceSuppression != 0);
return TRUE;
}
protected:
const char* m_name;
bool m_aa;
};
class BaseG729Capab : public H323AudioCapability
{
PCLASSINFO(BaseG729Capab, H323AudioCapability);
public:
BaseG729Capab(const char* fname, unsigned type = H245_AudioCapability::e_g729)
: H323AudioCapability(24,6), m_name(fname), m_type(type)
{ }
virtual PObject* Clone() const
// default copy constructor - take care!
{ return new BaseG729Capab(*this); }
virtual unsigned GetSubType() const
{ return m_type; }
virtual PString GetFormatName() const
{ return m_name; }
virtual H323Codec* CreateCodec(H323Codec::Direction direction) const
{ return 0; }
protected:
const char* m_name;
unsigned m_type;
};
// shameless adaptation from the G711 capability declaration
#define DEFINE_YATE_CAPAB(cls,base,param,name) \
class cls : public base { \
public: \
cls() : base(name,param) { } \
}; \
H323_REGISTER_CAPABILITY(cls,name) \
DEFINE_YATE_CAPAB(YateG7231_5,BaseG7231Capab,false,OPAL_G7231_5k3"{sw}")
DEFINE_YATE_CAPAB(YateG7231_6,BaseG7231Capab,false,OPAL_G7231_6k3"{sw}")
DEFINE_YATE_CAPAB(YateG7231A5,BaseG7231Capab,true,OPAL_G7231A_5k3"{sw}")
DEFINE_YATE_CAPAB(YateG7231A6,BaseG7231Capab,true,OPAL_G7231A_6k3"{sw}")
DEFINE_YATE_CAPAB(YateG729,BaseG729Capab,H245_AudioCapability::e_g729,OPAL_G729"{sw}")
DEFINE_YATE_CAPAB(YateG729A,BaseG729Capab,H245_AudioCapability::e_g729AnnexA,OPAL_G729A"{sw}")
DEFINE_YATE_CAPAB(YateG729B,BaseG729Capab,H245_AudioCapability::e_g729wAnnexB,OPAL_G729B"{sw}")
DEFINE_YATE_CAPAB(YateG729AB,BaseG729Capab,H245_AudioCapability::e_g729AnnexAwAnnexB,OPAL_G729AB"{sw}")
// end of fake capabilities code
#ifdef USE_CAPABILITY_FACTORY
static void ListRegisteredCaps(int level)
{
PFactory<H323Capability>::KeyList_T list = PFactory<H323Capability>::GetKeyList();
for (std::vector<PString>::const_iterator find = list.begin(); find != list.end(); ++find)
Debug(level,"Registed capability: '%s'",(const char*)*find);
}
#else
// This class is used just to find out if a capability is registered
class FakeH323CapabilityRegistration : public H323CapabilityRegistration
{
PCLASSINFO(FakeH323CapabilityRegistration,H323CapabilityRegistration);
public:
FakeH323CapabilityRegistration()
: H323CapabilityRegistration("[fake]")
{ }
static void ListRegistered(int level);
static bool IsRegistered(const PString& name);
virtual H323Capability* Create(H323EndPoint& ep) const
{ return 0; }
};
void FakeH323CapabilityRegistration::ListRegistered(int level)
{
PWaitAndSignal mutex(H323CapabilityRegistration::GetMutex());
H323CapabilityRegistration* find = registeredCapabilitiesListHead;
for (; find; find = static_cast<FakeH323CapabilityRegistration*>(find)->link)
Debug(level,"Registed capability: '%s'",(const char*)*find);
}
bool FakeH323CapabilityRegistration::IsRegistered(const PString& name)
{
PWaitAndSignal mutex(H323CapabilityRegistration::GetMutex());
H323CapabilityRegistration* find = registeredCapabilitiesListHead;
for (; find; find = static_cast<FakeH323CapabilityRegistration*>(find)->link)
if (*find == name)
return true;
return false;
}
#endif
YateGatekeeperServer::YateGatekeeperServer(YateH323EndPoint& ep)
: H323GatekeeperServer(ep), m_endpoint(ep)
{
Debug(&hplugin,DebugAll,"YateGatekeeperServer::YateGatekeeperServer() [%p]",this);
}
BOOL YateGatekeeperServer::Init()
{
SetGatekeeperIdentifier("YATE gatekeeper");
H323TransportAddressArray interfaces;
const char* addr = 0;
int i;
for (i=1; (addr=s_cfg.getValue("gk",("interface"+String(i)).c_str())); i++){
if (!AddListener(new H323GatekeeperListener(m_endpoint, *this,s_cfg.getValue("gk","name","YateGatekeeper"),new H323TransportUDP(m_endpoint,PIPSocket::Address(addr),s_cfg.getIntValue("gk","port",1719),0))))
Debug(DebugGoOn,"Can't start the Gk listener for address: %s",addr);
}
i = s_cfg.getIntValue("gk","ttl",600);
if (i > 0) {
// adjust time to live between 1 minute and 1 day
if (i < 60)
i = 60;
if (i > 86400)
i = 86400;
SetTimeToLive(i);
}
return TRUE;
}
YateH323EndPoint::YateH323EndPoint(const NamedList* params, const char* name)
: String(name), m_gkServer(0), m_thread(0)
{
Debug(&hplugin,DebugAll,"YateH323EndPoint::YateH323EndPoint(%p,\"%s\") [%p]",
params,name,this);
if (params && params->getBoolValue("gw",false))
terminalType = e_GatewayOnly;
hplugin.m_endpoints.append(this);
}
YateH323EndPoint::~YateH323EndPoint()
{
Debug(&hplugin,DebugAll,"YateH323EndPoint::~YateH323EndPoint() [%p]",this);
hplugin.m_endpoints.remove(this,false);
RemoveListener(0);
ClearAllCalls(H323Connection::EndedByTemporaryFailure, true);
if (m_gkServer)
delete m_gkServer;
stopGkClient();
if (m_thread)
Debug(DebugFail,"Destroying YateH323EndPoint '%s' still having a YateGkRegThread %p [%p]",
safe(),m_thread,this);
}
H323Connection* YateH323EndPoint::CreateConnection(unsigned callReference,
void* userData, H323Transport* transport, H323SignalPDU* setupPDU)
{
if (s_maxCleaning > 0) {
// check if there aren't too many connections assigned to the cleaner thread
int cln = cleaningCount();
if (cln > s_maxCleaning) {
Debug(DebugWarn,"Refusing new H.323 call, there are already %d cleaning up",cln);
return 0;
}
}
if (!hplugin.canAccept(false)) {
Debug(DebugWarn,"Refusing new H.323 call, full or exiting");
return 0;
}
return new YateH323Connection(*this,transport,callReference,userData);
}
bool YateH323EndPoint::Init(const NamedList* params)
{
if (null()) {
int dump = s_cfg.getIntValue("general","dumpcodecs");
if (dump > 0)
#ifdef USE_CAPABILITY_FACTORY
ListRegisteredCaps(dump);
#else
FakeH323CapabilityRegistration::ListRegistered(dump);
#endif
}
String csect("codecs");
if (!null()) {
csect << " " << c_str();
// fall back to global codec definitions if [codec NAME] does not exist
if (!s_cfg.getSection(csect))
csect = "codecs";
}
bool defcodecs = s_cfg.getBoolValue(csect,"default",true);
const char** f = h323_formats;
for (; *f; f += 2) {
bool ok = false;
bool fake = false;
String tmp(s_cfg.getValue(csect,f[1]));
if ((tmp == "fake") || (tmp == "pretend")) {
ok = true;
fake = true;
}
else
ok = tmp.toBoolean(defcodecs);
if (ok) {
tmp = f[0];
tmp += "*{sw}";
PINDEX init = GetCapabilities().GetSize();
AddAllCapabilities(0, 0, tmp.c_str());
PINDEX num = GetCapabilities().GetSize() - init;
if (fake && !num) {
// failed to add so pretend we support it in hardware
tmp = f[0];
tmp += "*{hw}";
AddAllCapabilities(0, 0, tmp.c_str());
num = GetCapabilities().GetSize() - init;
}
if (num)
Debug(&hplugin,DebugAll,"H.323 added %d capabilities '%s'",num,tmp.c_str());
else
// warn if codecs were disabled by default
Debug(&hplugin,defcodecs ? DebugInfo : DebugWarn,"H323 failed to add capability '%s'",tmp.c_str());
}
}
AddAllUserInputCapabilities(0,1);
DisableDetectInBandDTMF(!(params && params->getBoolValue("dtmfinband")));
DisableFastStart(!(params && params->getBoolValue("faststart")));
DisableH245Tunneling(!(params && params->getBoolValue("h245tunneling")));
DisableH245inSetup(!(params && params->getBoolValue("h245insetup")));
SetSilenceDetectionMode(static_cast<H323AudioCodec::SilenceDetectionMode>
(params ? params->getIntValue("silencedetect",dict_silence,H323AudioCodec::NoSilenceDetection)
: H323AudioCodec::NoSilenceDetection));
PIPSocket::Address addr = INADDR_ANY;
int port = 1720;
if (params)
port = params-> getIntValue("port",port);
if ((!params) || params->getBoolValue("ep",true)) {
H323ListenerTCP *listener = new H323ListenerTCP(*this,addr,port);
if (!(listener && StartListener(listener))) {
Debug(DebugGoOn,"Unable to start H323 Listener at port %d",port);
if (listener)
delete listener;
return false;
}
const char *ali = "yate";
if (params) {
ali = params->getValue("username",ali);
ali = params->getValue("alias",ali);
}
SetLocalUserName(ali);
if (params && params->getBoolValue("gkclient")) {
int ttl = params->getIntValue("gkttl",300);
if (ttl > 0) {
// adjust time to live between 1 minute and 1 day
if (ttl < 60)
ttl = 60;
if (ttl > 86400)
ttl = 86400;
registrationTimeToLive.SetInterval(0,ttl);
}
int retry = params->getIntValue("gkretry",60);
if ((retry > 0) && (retry < 10))
retry = 10;
const char *p = params->getValue("password");
if (p) {
SetGatekeeperPassword(p);
Debug(&hplugin,DebugInfo,"Enabling H.235 security access to gatekeeper %s",p);
}
const char* d = params->getValue("gkip");
const char* a = params->getValue("gkname");
if (d)
startGkClient(ByAddr,retry,d);
else if (a)
startGkClient(ByName,retry,a);
else
startGkClient(Discover,retry);
}
}
// only the first, nameless endpoint can be a gatekeeper
if ((!m_gkServer) && null() && s_cfg.getBoolValue("gk","server",false)) {
m_gkServer = new YateGatekeeperServer(*this);
m_gkServer->Init();
}
return true;
}
// Start a new PThread that performs GK discovery
bool YateH323EndPoint::startGkClient(int mode, int retry, const char* name)
{
int retries = 10;
hplugin.lock();
while (m_thread) {
hplugin.unlock();
if (!--retries) {
Debug(&hplugin,DebugGoOn,"Old Gk client thread in '%s' not finished",safe());
return false;
}
Thread::msleep(25);
hplugin.lock();
}
m_thread = new YateGkRegThread(this,mode,retry,name);
hplugin.unlock();
m_thread->SetAutoDelete();
m_thread->Resume();
return true;
}
void YateH323EndPoint::stopGkClient()
{
Lock lock(hplugin);
if (m_thread) {
Debug(&hplugin,DebugWarn,"Forcibly terminating old Gk client thread in '%s'",safe());
m_thread->Terminate();
m_thread = 0;
lock.drop();
RemoveGatekeeper();
}
}
void YateH323EndPoint::asyncGkClient(int mode, const PString& name, int retry)
{
while (!internalGkClient(mode,name) && (retry > 0))
Thread::sleep(retry);
hplugin.lock();
m_thread = 0;
hplugin.unlock();
}
bool YateH323EndPoint::internalGkClient(int mode, const PString& name)
{
switch (mode) {
case ByAddr:
if (SetGatekeeper(name,new H323TransportUDP(*this))) {
Debug(&hplugin,DebugInfo,"Connected '%s' to GK addr '%s'",
safe(),(const char*)name);
return true;
}
Debug(&hplugin,DebugWarn,"Failed to connect '%s' to GK addr '%s'",
safe(),(const char*)name);
break;
case ByName:
if (LocateGatekeeper(name)) {
Debug(&hplugin,DebugInfo,"Connected '%s' to GK name '%s'",
safe(),(const char*)name);
return true;
}
Debug(&hplugin,DebugWarn,"Failed to connect '%s' to GK name '%s'",
safe(),(const char*)name);
break;
case Discover:
if (DiscoverGatekeeper(new H323TransportUDP(*this))) {
Debug(&hplugin,DebugInfo,"Connected '%s' to discovered GK",safe());
return true;
}
Debug(&hplugin,DebugWarn,"Failed to discover a GK in '%s'",safe());
break;
case Unregister:
RemoveGatekeeper();
Debug(&hplugin,DebugInfo,"Removed the GK in '%s'",safe());
return true;
}
return false;
}
YateH323Connection::YateH323Connection(YateH323EndPoint& endpoint,
H323Transport* transport, unsigned callReference, void* userdata)
: H323Connection(endpoint,callReference), m_chan(0), m_mutex(0),
m_externalRtp(s_externalRtp), m_nativeRtp(false), m_passtrough(false),
m_rtpPort(0), m_remotePort(0), m_needMedia(true)
{
Debug(&hplugin,DebugAll,"YateH323Connection::YateH323Connection(%p,%u,%p) [%p]",
&endpoint,callReference,userdata,this);
s_mutex.lock();
s_connCount++;
s_mutex.unlock();
m_needMedia = s_cfg.getBoolValue("general","needmedia",m_needMedia);
// outgoing calls get the "call.execute" message as user data
Message* msg = static_cast<Message*>(userdata);
m_chan = new YateH323Chan(this,msg,
((transport && !userdata) ? (const char*)transport->GetRemoteAddress() : 0));
m_chanId = m_chan->id();
m_mutex = m_chan->mutex();
debugCopy(m_chan);
debugName(m_chanId);
if (!msg) {
m_passtrough = s_passtrough;
return;
}
setCallerID(msg->getValue("caller"),msg->getValue("callername"));
rtpForward(*msg,s_passtrough);
m_needMedia = msg->getBoolValue("needmedia",m_needMedia);
CallEndpoint* ch = YOBJECT(CallEndpoint,msg->userData());
if (ch && ch->connect(m_chan,msg->getValue("reason"))) {
m_chan->setTarget(msg->getValue("id"));
msg->setParam("peerid",m_chan->id());
msg->setParam("targetid",m_chan->id());
m_chan->deref();
}
}
// Called by the cleaner thread after CleanUpOnCallEnd() and OnCleared()
YateH323Connection::~YateH323Connection()
{
Debug(this,DebugAll,"YateH323Connection::~YateH323Connection() [%p]",this);
s_mutex.lock();
s_connCount--;
s_mutex.unlock();
YateH323Chan* tmp = m_chan;
m_chan = 0;
if (tmp)
tmp->finish();
cleanups();
debugName(0);
}
// Called by the cleaner thread before OnCleared() and the destructor
void YateH323Connection::CleanUpOnCallEnd()
{
Debug(this,DebugAll,"YateH323Connection::CleanUpOnCallEnd() [%p]",this);
if (m_chan)
m_chan->stopDataLinks();
H323Connection::CleanUpOnCallEnd();
}
void YateH323Connection::cleanups(bool closeChans, bool dropChan)
{
if (dropChan)
m_chan = 0;
if (closeChans && Lock()) {
CloseAllLogicalChannels(true);
CloseAllLogicalChannels(false);
Unlock();
}
}
H323Connection::AnswerCallResponse YateH323Connection::OnAnswerCall(const PString &caller,
const H323SignalPDU &setupPDU, H323SignalPDU &connectPDU)
{
Debug(this,DebugInfo,"YateH323Connection::OnAnswerCall caller='%s' chan=%p [%p]",
(const char *)caller,m_chan,this);
TelEngine::Lock lock(m_mutex);
if (!(m_chan && m_chan->alive()))
return H323Connection::AnswerCallDenied;
if (!hplugin.canRoute()) {
Debug(this,DebugWarn,"Not answering H.323 call, full or exiting");
YateH323Chan* tmp = m_chan;
m_chan = 0;
tmp->hangup(false,false);
tmp->deref();
return H323Connection::AnswerCallDenied;
}
Message *m = m_chan->message("call.preroute",false,true);
lock.drop();
const YateH323EndPoint& ep = static_cast<const YateH323EndPoint&>(GetEndPoint());
if (ep.c_str())
m->setParam("in_line",ep.c_str());
const char *s = s_cfg.getValue("incoming","context");
if (s)
m->setParam("context",s);
m->setParam("callername",caller);
s = GetRemotePartyNumber();
Debug(this,DebugInfo,"GetRemotePartyNumber()='%s'",s);
m->setParam("caller",s ? s : (const char *)("h323/"+caller));
const Q931& q931 = setupPDU.GetQ931();
const H225_Setup_UUIE& setup = setupPDU.m_h323_uu_pdu.m_h323_message_body;
const H225_ArrayOf_AliasAddress& adr = setup.m_destinationAddress;
for (int i = 0; i<adr.GetSize(); i++)
Debug(this,DebugAll,"adr[%d]='%s'",i,(const char *)H323GetAliasAddressString(adr[i]));
String called;
if (adr.GetSize() > 0)
called = (const char *)H323GetAliasAddressString(adr[0]);
if (called)
Debug(this,DebugInfo,"Called number (alias) is '%s'",called.c_str());
else {
PString cal;
if (q931.GetCalledPartyNumber(cal)) {
called=(const char *)cal;
Debug(this,DebugInfo,"Called-Party-Number (IE) is '%s'",called.c_str());
}
}
if (called.null()) {
Debug(this,DebugMild,"No called number present!");
called = s_cfg.getValue("incoming","called");
}
if (called)
m->setParam("called",called);
#if 0
s = GetRemotePartyAddress();
Debug(this,DebugInfo,"GetRemotePartyAddress()='%s'",s);
if (s)
m->setParam("calledname",s);
#endif
if (hasRemoteAddress()) {
m->addParam("rtp_forward","possible");
m->addParam("rtp_addr",m_remoteAddr);
m->addParam("rtp_port",String(m_remotePort));
}
if (m_remoteFormats)
m->addParam("formats",m_remoteFormats);
if (m_chan->startRouter(m))
return H323Connection::AnswerCallDeferred;
Debug(&hplugin,DebugWarn,"Error starting H.323 routing thread! [%p]",this);
return H323Connection::AnswerCallDenied;
}
void YateH323Connection::rtpExecuted(Message& msg)
{
Debug(this,DebugAll,"YateH323Connection::rtpExecuted(%p) [%p]",
&msg,this);
m_needMedia = msg.getBoolValue("needmedia",m_needMedia);
if (!m_passtrough)
return;
String tmp = msg.getValue("rtp_forward");
m_passtrough = (tmp == "accepted");
if (m_passtrough)
Debug(this,DebugInfo,"H323 Peer accepted RTP forward");
}
void YateH323Connection::rtpForward(Message& msg, bool init)
{
Debug(this,DebugAll,"YateH323Connection::rtpForward(%p,%d) [%p]",
&msg,init,this);
String tmp = msg.getValue("rtp_forward");
if (!((init || m_passtrough) && tmp))
return;
m_passtrough = tmp.toBoolean();
if (!m_passtrough)
return;
int port = msg.getIntValue("rtp_port");
String addr(msg.getValue("rtp_addr"));
if (port && addr) {
m_rtpAddr = addr;
m_rtpPort = port;
m_formats = msg.getValue("formats");
msg.setParam("rtp_forward","accepted");
Debug(this,DebugInfo,"Accepted RTP forward %s:%d formats '%s'",
addr.c_str(),port,m_formats.safe());
}
else {
m_passtrough = false;
Debug(this,DebugInfo,"Disabling RTP forward [%p]",this);
}
}
void YateH323Connection::answerCall(AnswerCallResponse response)
{
bool media = false;
if (hasRemoteAddress() && m_rtpPort)
media = true;
else {
TelEngine::Lock lock(m_mutex);
if (m_chan && m_chan->alive() && m_chan->getConsumer() && m_chan->getConsumer()->getConnSource())
media = true;
}
// modify responses to indicate we have early media (remote ringing)
if (media) {
switch (response) {
case AnswerCallPending:
response = AnswerCallAlertWithMedia;
break;
case AnswerCallDeferred:
response = AnswerCallDeferredWithMedia;
break;
default:
break;
}
}
AnsweringCall(response);
}
void YateH323Connection::OnEstablished()
{
TelEngine::Lock lock(m_mutex);
Debug(this,DebugInfo,"YateH323Connection::OnEstablished() [%p]",this);
if (!m_chan)
return;
if (HadAnsweredCall()) {
m_chan->status("connected");
return;
}
m_chan->status("answered");
m_chan->maxcall(0);
Message *m = m_chan->message("call.answered",false,true);
lock.drop();
if (m_passtrough) {
if (m_remotePort) {
m->addParam("rtp_forward","yes");
m->addParam("rtp_addr",m_remoteAddr);
m->addParam("rtp_port",String(m_remotePort));
m->addParam("formats",m_remoteFormats);
}
else {
Debug(this,DebugWarn,"H323 RTP passtrough with no remote address! [%p]",this);
if (m_needMedia)
ClearCall(EndedByCapabilityExchange);
}
}
Engine::enqueue(m);
}
// Called by the cleaner thread between CleanUpOnCallEnd() and the destructor
void YateH323Connection::OnCleared()
{
int reason = GetCallEndReason();
const char* rtext = CallEndReasonText(reason);
const char* error = lookup(reason,dict_errors);
Debug(this,DebugInfo,"YateH323Connection::OnCleared() error: '%s' reason: %s (%d) [%p]",
error,rtext,reason,this);
TelEngine::Lock lock(m_mutex);
if (m_chan && m_chan->ref()) {
lock.drop();
m_chan->disconnect(error ? error : rtext);
m_chan->deref();
}
}
BOOL YateH323Connection::OnAlerting(const H323SignalPDU &alertingPDU, const PString &user)
{
Debug(this,DebugInfo,"YateH323Connection::OnAlerting '%s' [%p]",(const char *)user,this);
TelEngine::Lock lock(m_mutex);
if (!m_chan)
return FALSE;
m_chan->status("ringing");
Message *m = m_chan->message("call.ringing",false,true);
lock.drop();
if (hasRemoteAddress()) {
m->addParam("rtp_forward","yes");
m->addParam("rtp_addr",m_remoteAddr);
m->addParam("rtp_port",String(m_remotePort));
m->addParam("formats",m_remoteFormats);
}
Engine::enqueue(m);
return TRUE;
}
BOOL YateH323Connection::OnReceivedProgress(const H323SignalPDU& pdu)
{
Debug(this,DebugInfo,"YateH323Connection::OnReceivedProgress [%p]",this);
if (!H323Connection::OnReceivedProgress(pdu))
return FALSE;
TelEngine::Lock lock(m_mutex);
if (!m_chan)
return FALSE;
m_chan->status("progressing");
Message *m = m_chan->message("call.progress",false,true);
lock.drop();
if (hasRemoteAddress()) {
m->addParam("rtp_forward","yes");
m->addParam("rtp_addr",m_remoteAddr);
m->addParam("rtp_port",String(m_remotePort));
m->addParam("formats",m_remoteFormats);
}
Engine::enqueue(m);
return TRUE;
}
void YateH323Connection::OnUserInputTone(char tone, unsigned duration, unsigned logicalChannel, unsigned rtpTimestamp)
{
Debug(this,DebugInfo,"YateH323Connection::OnUserInputTone '%c' duration=%u [%p]",tone,duration,this);
TelEngine::Lock lock(m_mutex);
if (!m_chan)
return;
Message *m = m_chan->message("chan.dtmf",false,true);
lock.drop();
char buf[2];
buf[0] = tone;
buf[1] = 0;
m->addParam("text",buf);
m->addParam("duration",String(duration));
Engine::enqueue(m);
}
void YateH323Connection::OnUserInputString(const PString &value)
{
Debug(this,DebugInfo,"YateH323Connection::OnUserInputString '%s' [%p]",(const char *)value,this);
TelEngine::Lock lock(m_mutex);
if (!m_chan)
return;
String text((const char *)value);
const char *type = text.startSkip("MSG") ? "chan.text" : "chan.dtmf";
Message *m = m_chan->message(type,false,true);
lock.drop();
m->addParam("text",text);
Engine::enqueue(m);
}
BOOL YateH323Connection::OpenAudioChannel(BOOL isEncoding, unsigned bufferSize,
H323AudioCodec &codec)
{
Debug(this,DebugInfo,"YateH323Connection::OpenAudioChannel chan=%p [%p]",m_chan,this);
if (!m_nativeRtp) {
Debug(DebugGoOn,"YateH323Connection::OpenAudioChannel for non-native RTP in [%p]",this);
if (m_needMedia)
ClearCall(EndedByCapabilityExchange);
return FALSE;
}
PChannel* achan = 0;
TelEngine::Lock lock(m_mutex);
if (m_chan && m_chan->alive())
achan = m_chan->openAudioChannel(isEncoding);
lock.drop();
return achan && codec.AttachChannel(achan,false);
}
#ifdef NEED_RTP_QOS_PARAM
H323Channel* YateH323Connection::CreateRealTimeLogicalChannel(const H323Capability& capability,H323Channel::Directions dir,unsigned sessionID,const H245_H2250LogicalChannelParameters* param,RTP_QOS* rtpqos)
#else
H323Channel* YateH323Connection::CreateRealTimeLogicalChannel(const H323Capability& capability,H323Channel::Directions dir,unsigned sessionID,const H245_H2250LogicalChannelParameters* param)
#endif
{
Debug(this,DebugAll,"H323Connection::CreateRealTimeLogicalChannel%s%s [%p]",
m_externalRtp ? " external" : "",m_passtrough ? " passtrough" : "",this);
if (m_externalRtp || m_passtrough) {
const char* sdir = lookup(dir,dict_h323_dir);
const char *format = 0;
decodeCapability(capability,&format);
Debug(this,DebugAll,"Capability '%s' format '%s' session %u %s",
(const char *)capability.GetFormatName(),format,sessionID,sdir);
// disallow codecs not supported by remote receiver
if (m_passtrough && !(m_formats.null() || (m_formats.find(format) >= 0))) {
Debug(this,DebugMild,"Refusing to create '%s' not in remote '%s'",format,m_formats.c_str());
return 0;
}
if (dir == H323Channel::IsReceiver) {
if (format && (m_remoteFormats.find(format) < 0) && s_cfg.getBoolValue("codecs",format,true)) {
if (m_remoteFormats)
m_remoteFormats << ",";
m_remoteFormats << format;
}
}
PIPSocket::Address externalIpAddress;
GetControlChannel().GetLocalAddress().GetIpAddress(externalIpAddress);
Debug(this,DebugInfo,"address '%s'",(const char *)externalIpAddress.AsString());
WORD externalPort = 0;
if (!m_passtrough) {
TelEngine::Lock lock(m_mutex);
if (m_chan && m_chan->alive()) {
Message m("chan.rtp");
m.userData(m_chan);
lock.drop();
m.addParam("localip",externalIpAddress.AsString());
if (sdir)
m.addParam("direction",sdir);
if (Engine::dispatch(m)) {
m_rtpid = m.getValue("rtpid");
externalPort = m.getIntValue("localport");
}
}
else {
Debug(this,DebugInfo,"Not creating logical channel for a dead channel [%p]",this);
return 0;
}
}
if (externalPort || m_passtrough) {
m_nativeRtp = false;
if (!externalPort) {
externalPort = m_rtpPort;
externalIpAddress = PString(m_rtpAddr.safe());
}
return new YateH323_ExternalRTPChannel(*this, capability, dir, sessionID, externalIpAddress, externalPort);
}
if (s_fallbackRtp)
Debug(this,DebugWarn,"YateH323Connection falling back to native RTP [%p]",this);
else {
Debug(this,DebugWarn,"YateH323Connection RTP failed but not falling back! [%p]",this);
return 0;
}
}
m_nativeRtp = true;
#ifdef NEED_RTP_QOS_PARAM
return H323Connection::CreateRealTimeLogicalChannel(capability,dir,sessionID,param,rtpqos);
#else
return H323Connection::CreateRealTimeLogicalChannel(capability,dir,sessionID,param);
#endif
}
void YateH323Connection::OnSetLocalCapabilities()
{
Debug(this,DebugAll,"YateH323Connection::OnSetLocalCapabilities()%s%s [%p]",
m_externalRtp ? " external" : "",m_passtrough ? " passtrough" : "",this);
H323Connection::OnSetLocalCapabilities();
if (m_formats.null())
return;
// remote has a list of supported codecs - remove unsupported capabilities
bool nocodecs = true;
for (int i = 0; i < localCapabilities.GetSize(); i++) {
const char* format = 0;
String fname;
decodeCapability(localCapabilities[i],&format,0,&fname);
if (format) {
if (m_formats.find(format) < 0) {
Debug(this,DebugAll,"Removing capability '%s' (%s) not in remote '%s'",
fname.c_str(),format,m_formats.c_str());
localCapabilities.Remove(fname.c_str());
i--;
}
else
nocodecs = false;
}
}
if (nocodecs) {
Debug(DebugWarn,"No codecs remaining for H323 connection [%p]",this);
if (m_needMedia)
ClearCall(EndedByCapabilityExchange);
}
}
BOOL YateH323Connection::OnStartLogicalChannel(H323Channel & channel)
{
DDebug(this,DebugInfo,"YateH323Connection::OnStartLogicalChannel(%p) [%p]",&channel,this);
if (!(m_chan && m_chan->alive()))
return FALSE;
return m_nativeRtp ? H323Connection::OnStartLogicalChannel(channel) : TRUE;
}
BOOL YateH323Connection::OnCreateLogicalChannel(const H323Capability& capability, H323Channel::Directions dir, unsigned& errorCode)
{
DDebug(this,DebugInfo,"YateH323Connection::OnCreateLogicalChannel('%s',%s) [%p]",
(const char *)capability.GetFormatName(),lookup(dir,dict_h323_dir),this);
return H323Connection::OnCreateLogicalChannel(capability,dir,errorCode);
}
BOOL YateH323Connection::OpenLogicalChannel(const H323Capability& capability, unsigned sessionID, H323Channel::Directions dir)
{
DDebug(this,DebugInfo,"YateH323Connection::OpenLogicalChannel('%s',%u,%s) [%p]",
(const char *)capability.GetFormatName(),sessionID,lookup(dir,dict_h323_dir),this);
if (!(m_chan && m_chan->alive()))
return FALSE;
return H323Connection::OpenLogicalChannel(capability,sessionID,dir);
}
BOOL YateH323Connection::decodeCapability(const H323Capability& capability, const char** dataFormat, int* payload, String* capabName)
{
String fname((const char *)capability.GetFormatName());
// turn capability name into format name
if (fname.endsWith("{sw}",false))
fname = fname.substr(0,fname.length()-4);
if (fname.endsWith("{hw}",false))
fname = fname.substr(0,fname.length()-4);
OpalMediaFormat oformat(fname, FALSE);
int pload = oformat.GetPayloadType();
const char *format = 0;
const char** f = h323_formats;
for (; *f; f += 2) {
if (fname.startsWith(*f,false)) {
format = f[1];
break;
}
}
DDebug(&hplugin,DebugAll,"capability '%s' format '%s' payload %d",fname.c_str(),format,pload);
if (format) {
if (capabName)
*capabName = fname;
if (dataFormat)
*dataFormat = format;
if (payload)
*payload = pload;
return TRUE;
}
return FALSE;
}
void YateH323Connection::setRemoteAddress(const char* remoteIP, WORD remotePort)
{
if (!m_remotePort) {
Debug(this,DebugInfo,"Copying remote RTP address [%p]",this);
m_remotePort = remotePort;
m_remoteAddr = remoteIP;
}
}
BOOL YateH323Connection::startExternalRTP(const char* remoteIP, WORD remotePort, H323Channel::Directions dir, YateH323_ExternalRTPChannel* chan)
{
const char* sdir = lookup(dir,dict_h323_dir);
Debug(this,DebugAll,"YateH323Connection::startExternalRTP(\"%s\",%u,%s,%p) [%p]",
remoteIP,remotePort,sdir,chan,this);
if (m_passtrough && m_rtpPort) {
setRemoteAddress(remoteIP,remotePort);
Debug(this,DebugInfo,"Passing RTP to %s:%d",m_rtpAddr.c_str(),m_rtpPort);
const PIPSocket::Address ip(m_rtpAddr.safe());
WORD dataPort = m_rtpPort;
chan->SetExternalAddress(H323TransportAddress(ip, dataPort), H323TransportAddress(ip, dataPort+1));
stoppedExternal(dir);
return TRUE;
}
if (!m_externalRtp)
return FALSE;
Message m("chan.rtp");
if (m_rtpid)
m.setParam("rtpid",m_rtpid);
if (sdir)
m.addParam("direction",sdir);
m.addParam("remoteip",remoteIP);
m.addParam("remoteport",String(remotePort));
int payload = 128;
const char *format = 0;
decodeCapability(chan->GetCapability(),&format,&payload);
if (format)
m.addParam("format",format);
if ((payload >= 0) && (payload < 127))
m.addParam("payload",String(payload));
TelEngine::Lock lock(m_mutex);
if (!(m_chan && m_chan->alive() && m_chan->driver()))
return FALSE;
m.userData(m_chan);
lock.drop();
if (Engine::dispatch(m)) {
m_rtpid = m.getValue("rtpid");
return TRUE;
}
return FALSE;
}
void YateH323Connection::stoppedExternal(H323Channel::Directions dir)
{
Debug(this,DebugInfo,"YateH323Connection::stoppedExternal(%s) chan=%p [%p]",
lookup(dir,dict_h323_dir),m_chan,this);
TelEngine::Lock lock(m_mutex);
if (!m_chan)
return;
switch (dir) {
case H323Channel::IsReceiver:
m_chan->setSource();
break;
case H323Channel::IsTransmitter:
m_chan->setConsumer();
break;
case H323Channel::IsBidirectional:
m_chan->setSource();
m_chan->setConsumer();
default:
break;
}
}
bool YateH323Connection::sendTone(Message& msg, const char* tone)
{
if (m_rtpid) {
msg.setParam("targetid",m_rtpid);
return false;
}
while (*tone)
SendUserInputTone(*tone++);
return true;
}
YateH323_ExternalRTPChannel::YateH323_ExternalRTPChannel(
YateH323Connection& connection,
const H323Capability& capability,
Directions direction,
unsigned sessionID,
const PIPSocket::Address& ip,
WORD dataPort)
: H323_ExternalRTPChannel(connection, capability, direction, sessionID, ip, dataPort),
m_conn(&connection)
{
DDebug(m_conn,DebugAll,"YateH323_ExternalRTPChannel::YateH323_ExternalRTPChannel %s addr=%s:%u [%p]",
lookup(GetDirection(),dict_h323_dir), (const char *)ip.AsString(), dataPort,this);
SetExternalAddress(H323TransportAddress(ip, dataPort), H323TransportAddress(ip, dataPort+1));
}
YateH323_ExternalRTPChannel::~YateH323_ExternalRTPChannel()
{
DDebug(m_conn,DebugInfo,"YateH323_ExternalRTPChannel::~YateH323_ExternalRTPChannel %s%s [%p]",
lookup(GetDirection(),dict_h323_dir),(isRunning ? " running" : ""),this);
if (isRunning) {
isRunning = FALSE;
if (m_conn)
m_conn->stoppedExternal(GetDirection());
}
}
BOOL YateH323_ExternalRTPChannel::Start()
{
DDebug(m_conn,DebugAll,"YateH323_ExternalRTPChannel::Start() [%p]",this);
if (!(m_conn && H323_ExternalRTPChannel::Start()))
return FALSE;
PIPSocket::Address remoteIpAddress;
WORD remotePort;
GetRemoteAddress(remoteIpAddress,remotePort);
Debug(&hplugin,DebugInfo,"external rtp ip address %s:%u",(const char *)remoteIpAddress.AsString(),remotePort);
return isRunning = m_conn->startExternalRTP((const char *)remoteIpAddress.AsString(), remotePort, GetDirection(), this);
}
BOOL YateH323_ExternalRTPChannel::OnReceivedPDU(
const H245_H2250LogicalChannelParameters& param,
unsigned& errorCode)
{
Debug(m_conn,DebugAll,"YateH323_ExternalRTPChannel::OnReceivedPDU [%p]",this);
if (!H323_ExternalRTPChannel::OnReceivedPDU(param,errorCode))
return FALSE;
if (!m_conn || m_conn->hasRemoteAddress())
return TRUE;
PIPSocket::Address remoteIpAddress;
WORD remotePort;
GetRemoteAddress(remoteIpAddress,remotePort);
Debug(&hplugin,DebugInfo,"Remote RTP IP address %s:%u",(const char *)remoteIpAddress.AsString(),remotePort);
m_conn->setRemoteAddress((const char *)remoteIpAddress.AsString(), remotePort);
return TRUE;
}
BOOL YateH323_ExternalRTPChannel::OnSendingPDU(H245_H2250LogicalChannelParameters& param)
{
Debug(m_conn,DebugAll,"YateH323_ExternalRTPChannel::OnSendingPDU [%p]",this);
return H323_ExternalRTPChannel::OnSendingPDU(param);
}
BOOL YateH323_ExternalRTPChannel::OnReceivedAckPDU(const H245_H2250LogicalChannelAckParameters& param)
{
Debug(m_conn,DebugAll,"YateH323_ExternalRTPChannel::OnReceivedAckPDU [%p]",this);
return H323_ExternalRTPChannel::OnReceivedAckPDU(param);
}
void YateH323_ExternalRTPChannel::OnSendOpenAck(H245_H2250LogicalChannelAckParameters& param)
{
Debug(m_conn,DebugAll,"YateH323_ExternalRTPChannel::OnSendOpenAck [%p]",this);
H323_ExternalRTPChannel::OnSendOpenAck(param);
}
YateH323AudioSource::~YateH323AudioSource()
{
DDebug(&hplugin,DebugAll,"YateH323AudioSource::~YateH323AudioSource() [%p]",this);
m_exit = true;
// Delay actual destruction until the mutex is released
m_mutex.lock();
m_data.clear(false);
m_mutex.unlock();
}
YateH323AudioConsumer::~YateH323AudioConsumer()
{
DDebug(&hplugin,DebugAll,"YateH323AudioConsumer::~YateH323AudioConsumer() [%p]",this);
m_exit = true;
// Delay actual destruction until the mutex is released
m_mutex.check();
}
BOOL YateH323AudioConsumer::Close()
{
DDebug(&hplugin,DebugAll,"YateH323AudioConsumer::Close() [%p]",this);
m_exit = true;
return true;
}
BOOL YateH323AudioConsumer::IsOpen() const
{
return !m_exit;
}
void YateH323AudioConsumer::Consume(const DataBlock &data, unsigned long tStamp)
{
if (m_exit)
return;
Lock lock(m_mutex);
if ((m_buffer.length() + data.length()) <= (480*5))
m_buffer += data;
#ifdef DEBUG
else
Debug(&hplugin,DebugAll,"Consumer skipped %u bytes, buffer is full [%p]",data.length(),this);
#endif
}
BOOL YateH323AudioConsumer::Read(void *buf, PINDEX len)
{
readDelay.Delay(len/16);
while (!m_exit) {
Lock lock(m_mutex);
if (!getConnSource()) {
::memset(buf,0,len);
break;
}
if (len >= (int)m_buffer.length()) {
lock.drop();
Thread::yield();
if (m_exit || Engine::exiting())
return false;
continue;
}
if (len > 0) {
::memcpy(buf,m_buffer.data(),len);
m_buffer.cut(-len);
XDebug(&hplugin,DebugAll,"Consumer pulled %d bytes from buffer [%p]",len,this);
break;
}
else {
len = 0;
Thread::yield();
}
}
lastReadCount = len;
return (len != 0);
}
BOOL YateH323AudioSource::Close()
{
DDebug(&hplugin,DebugAll,"YateH323AudioSource::Close() [%p]",this);
m_exit = true;
return true;
}
BOOL YateH323AudioSource::IsOpen() const
{
return !m_exit;
}
BOOL YateH323AudioSource::Write(const void *buf, PINDEX len)
{
if (!m_exit) {
m_data.assign((void *)buf,len,false);
Forward(m_data);
m_data.clear(false);
writeDelay.Delay(len/16);
}
lastWriteCount = len;
return true;
}
BOOL YateGatekeeperServer::GetUsersPassword(const PString& alias, PString& password) const
{
Message m("user.auth");
m.addParam("protocol","h323");
m.addParam("username",alias);
m.addParam("endpoint",m_endpoint);
m.addParam("gatekeeper",GetGatekeeperIdentifier());
if (!Engine::dispatch(m))
return FALSE;
// as usual empty password means authenticated
password = m.retValue().c_str();
return TRUE;
}
H323GatekeeperCall* YateGatekeeperServer::CreateCall(const OpalGloballyUniqueID& id,
H323GatekeeperCall::Direction dir)
{
return new YateGatekeeperCall(*this, id, dir);
}
H323GatekeeperRequest::Response YateGatekeeperServer::OnRegistration(H323GatekeeperRRQ& request)
{
int i = H323GatekeeperServer::OnRegistration(request);
if (i == H323GatekeeperRequest::Confirm) {
PString alias,r;
String ips;
for (int j = 0; j < request.rrq.m_terminalAlias.GetSize(); j++) {
alias = H323GetAliasAddressString(request.rrq.m_terminalAlias[j]);
r = H323GetAliasAddressE164(request.rrq.m_terminalAlias[j]);
H225_TransportAddress_ipAddress ip;
for (int k = 0; k < request.rrq.m_callSignalAddress.GetSize(); k++) {
ip = request.rrq.m_callSignalAddress[k];
// search for the first address that is not localhost (127.*)
if (ip.m_ip[0] != 127)
break;
}
ips = "h323/";
if (!alias.IsEmpty())
ips << (const char*)alias << "@";
ips << ip.m_ip[0] << "." << ip.m_ip[1] << "." << ip.m_ip[2] << "." << ip.m_ip[3] << ":" << (int)ip.m_port;
Message m("user.register");
m.addParam("username",alias);
m.addParam("driver","h323");
m.addParam("data",ips);
ips = GetTimeToLive();
m.addParam("expires",ips);
if (Engine::dispatch(m))
return H323GatekeeperRequest::Confirm;
}
return H323GatekeeperRequest::Reject;
}
return (H323Transaction::Response)i;
}
H323GatekeeperRequest::Response YateGatekeeperServer::OnUnregistration(H323GatekeeperURQ& request)
{
/* We use just the first alias since is the one we need */
int i = H323GatekeeperServer::OnUnregistration(request);
if (i == H323GatekeeperRequest::Confirm) {
for (int j = 0; j < request.urq.m_endpointAlias.GetSize(); j++) {
PString alias = H323GetAliasAddressString(request.urq.m_endpointAlias[j]);
if (alias.IsEmpty())
return H323GatekeeperRequest::Reject;
Message m("user.unregister");
m.addParam("username",alias);
if (Engine::dispatch(m))
return H323GatekeeperRequest::Confirm;
}
}
return (H323Transaction::Response)i;
}
BOOL YateGatekeeperServer::TranslateAliasAddressToSignalAddress(const H225_AliasAddress& alias,H323TransportAddress& address)
{
PString aliasString = H323GetAliasAddressString(alias);
Message m("call.route");
m.addParam("called",aliasString);
Engine::dispatch(m);
String s = m.retValue();
if (s) {
/**
* Here we have 2 cases, first is handle when the call have to be send
* to endpoint (if the call is to another yate channel, or is h323
* proxied), or if has to be send to another gatekeeper we find out
* from the driver parameter
*/
if ((m.getParam("driver")) && (*(m.getParam("driver")) == "h323")) {
s >> "/";
address = s.c_str();
}
else {
s.clear();
s << "ip$" << s_cfg.getValue("gk","interface1") << ":" << s_cfg.getIntValue("ep","port",1720);
address = s.c_str();
}
return TRUE;
}
return FALSE;
}
YateGatekeeperCall::YateGatekeeperCall(YateGatekeeperServer& gk,
const OpalGloballyUniqueID& id,
Direction dir)
: H323GatekeeperCall(gk, id, dir)
{
}
H323GatekeeperRequest::Response YateGatekeeperCall::OnAdmission(H323GatekeeperARQ & info)
{
/* for (int i = 0; i < info.arq.m_srcInfo.GetSize(); i++) {
PString alias = H323GetAliasAddressString(info.arq.m_srcInfo[i]);
PString d = H323GetAliasAddressString(info.arq.m_destinationInfo[0]);
Debug(DebugInfo,"aliasul in m_srcInfo %s si m_destinationInfo %s",(const char *)alias,(const char *)d);
}
return H323GatekeeperCall::OnAdmission(info);*/
#ifdef TEST_TOKEN
info.acf.IncludeOptionalField(H225_AdmissionConfirm::e_tokens);
info.acf.m_tokens.SetSize(1);
info.acf.m_tokens[0].m_tokenOID = "1.2.36.76840296.1";
info.acf.m_tokens[0].IncludeOptionalField(H235_ClearToken::e_nonStandard);
info.acf.m_tokens[0].m_nonStandard.m_nonStandardIdentifier = "1.2.36.76840296.1.1";
info.acf.m_tokens[0].m_nonStandard.m_data = "SnfYt0jUuZ4lVQv8umRYaH2JltXDRW6IuYcnASVU";
#endif
#ifdef TEST_SLOW_ARQ
if (info.IsFastResponseRequired()) {
if (YateH323GatekeeperCall::OnAdmission(info) == H323GatekeeperRequest::Reject)
return H323GatekeeperRequest::Reject;
return H323GatekeeperRequest::InProgress(5000); // 5 seconds maximum
}
PTimeInterval delay = 500+PRandom::Number()%3500; // Take from 0.5 to 4 seconds
PTRACE(3, "RAS\tTest ARQ delay " << delay);
PThread::Sleep(delay);
return H323GatekeeperRequest::Confirm;
#else
return H323GatekeeperCall::OnAdmission(info);
#endif
}
void YateH323Connection::setCallerID(const char* number, const char* name)
{
if (!number && isE164(name)) {
number = name;
name = 0;
}
if (!(name || number))
return;
if (isE164(number)) {
String display;
if (!name)
display << number << " [" << s_cfg.getValue("ep","ident","yate") << "]";
else if (isE164(name))
display << number << " [" << name << "]";
else
display = name;
Debug(this,DebugInfo,"Setting H.323 caller: number='%s' name='%s'",number,display.c_str());
SetLocalPartyName(number);
localAliasNames.AppendString(display.c_str());
}
else {
String display;
if (number && name)
display << number << " [" << name << "]";
else if (number)
display = number;
else
display = name;
Debug(this,DebugInfo,"Setting H.323 caller: name='%s'",display.c_str());
SetLocalPartyName(display.c_str());
}
}
YateH323Chan::YateH323Chan(YateH323Connection* conn,Message* msg,const char* addr)
: Channel(hplugin,0,(msg != 0)), m_conn(conn), m_hungup(false)
{
s_mutex.lock();
s_chanCount++;
s_mutex.unlock();
m_address = addr;
m_address.startSkip("ip$",false);
filterDebug(m_address);
Debug(this,DebugAll,"YateH323Chan::YateH323Chan(%p,%s) %s [%p]",
conn,addr,direction(),this);
setMaxcall(msg);
Message* s = message("chan.startup");
if (msg) {
s->setParam("caller",msg->getValue("caller"));
s->setParam("called",msg->getValue("called"));
s->setParam("billid",msg->getValue("billid"));
s->setParam("username",msg->getValue("username"));
}
Engine::enqueue(s);
}
YateH323Chan::~YateH323Chan()
{
Debug(this,DebugAll,"YateH323Chan::~YateH323Chan() %s %s [%p]",
m_status.c_str(),id().c_str(),this);
s_mutex.lock();
s_chanCount--;
s_mutex.unlock();
dropChan();
stopDataLinks();
if (m_conn)
m_conn->cleanups();
hangup();
if (m_conn)
Debug(this,DebugFail,"Still having a connection %p [%p]",m_conn,this);
}
void YateH323Chan::zeroRefs()
{
DDebug(this,DebugAll,"YateH323Chan::zeroRefs() conn=%p [%p]",m_conn,this);
if (m_conn && m_conn->nativeRtp() && stopDataLinks()) {
DDebug(this,DebugInfo,"YateH323Chan postpones destruction (native RTP) [%p]",this);
// let the OpenH323 cleaner thread to do the cleanups so we don't have
// to block until the native data threads terminate
dropChan();
hangup(false);
cleanup();
return;
}
Channel::zeroRefs();
}
void YateH323Chan::finish()
{
DDebug(this,DebugAll,"YateH323Chan::finish() [%p]",this);
m_conn = 0;
if (m_hungup)
delete this;
else {
hangup();
disconnect();
}
}
void YateH323Chan::hangup(bool dropChan, bool clearCall)
{
DDebug(this,DebugAll,"YateH323Chan::hangup() [%p]",this);
if (m_hungup)
return;
m_hungup = true;
Message *m = message("chan.hangup");
YateH323Connection* tmp = m_conn;
m_conn = 0;
if (clearCall && tmp) {
const char* err = 0;
const char* txt = "Normal cleanup";
int reason = tmp->GetCallEndReason();
if (reason != H323Connection::NumCallEndReasons) {
err = lookup(reason,dict_errors);
txt = CallEndReasonText(reason);
}
if (err)
m->setParam("error",err);
if (txt)
m->setParam("reason",txt);
tmp->cleanups(false,dropChan);
tmp->ClearCall();
}
Engine::enqueue(m);
}
void YateH323Chan::disconnected(bool final, const char *reason)
{
Debugger debug("YateH323Chan::disconnected()"," '%s' [%p]",reason,this);
if (!final) {
Channel::disconnected(final,reason);
return;
}
stopDataLinks();
if (m_conn)
m_conn->ClearCall((H323Connection::CallEndReason)lookup(reason,dict_errors,H323Connection::EndedByLocalUser));
}
// Shut down the data transfers so OpenH323 can stop its related threads
bool YateH323Chan::stopDataLinks()
{
DDebug(this,DebugAll,"YateH323Chan::stopDataLinks() [%p]",this);
Lock lock(m_mutex);
bool pending = false;
YateH323AudioSource* s = YOBJECT(YateH323AudioSource,getSource());
if (s) {
s->Close();
pending = true;
}
YateH323AudioConsumer* c = YOBJECT(YateH323AudioConsumer,getConsumer());
if (c) {
c->Close();
pending = true;
}
DDebug(this,DebugAll,"YateH323Chan::stopDataLinks() returning %s [%p]",
String::boolText(pending),this);
return pending;
}
PChannel* YateH323Chan::openAudioChannel(BOOL isEncoding)
{
if (isEncoding) {
// data going TO h.323
YateH323AudioConsumer* cons = static_cast<YateH323AudioConsumer*>(getConsumer());
if (!cons) {
setConsumer(cons = new YateH323AudioConsumer);
cons->deref();
}
return cons;
}
else {
// data coming FROM h.323
YateH323AudioSource* src = static_cast<YateH323AudioSource*>(getSource());
if (!src) {
setSource(src = new YateH323AudioSource);
src->deref();
}
return src;
}
return 0;
}
bool YateH323Chan::callRouted(Message& msg)
{
Channel::callRouted(msg);
if (m_conn) {
String s(msg.retValue());
if (s.startSkip("h323/",false) && s && msg.getBoolValue("redirect") && m_conn->Lock()) {
Debug(this,DebugAll,"YateH323Chan redirecting to '%s' [%p]",s.c_str(),this);
m_conn->TransferCall(s.safe());
m_conn->Unlock();
return false;
}
return true;
}
return false;
}
void YateH323Chan::callAccept(Message& msg)
{
Channel::callAccept(msg);
if (m_conn) {
m_conn->rtpExecuted(msg);
m_conn->answerCall(H323Connection::AnswerCallDeferred);
}
}
void YateH323Chan::callRejected(const char* error, const char* reason, const Message* msg)
{
Channel::callRejected(error,reason,msg);
}
bool YateH323Chan::msgProgress(Message& msg)
{
Channel::msgProgress(msg);
if (!m_conn)
return false;
if (msg.getParam("rtp_forward"))
m_conn->rtpForward(msg);
m_conn->answerCall(H323Connection::AnswerCallDeferred);
return true;
}
bool YateH323Chan::msgRinging(Message& msg)
{
Channel::msgRinging(msg);
if (!m_conn)
return false;
if (msg.getParam("rtp_forward"))
m_conn->rtpForward(msg);
m_conn->answerCall(H323Connection::AnswerCallPending);
return true;
}
bool YateH323Chan::msgAnswered(Message& msg)
{
if (!m_conn)
return false;
m_conn->rtpForward(msg);
m_conn->answerCall(H323Connection::AnswerCallNow);
return true;
}
bool YateH323Chan::msgTone(Message& msg, const char* tone)
{
return tone && m_conn && m_conn->sendTone(msg,tone);
}
bool YateH323Chan::msgText(Message& msg, const char* text)
{
if (text && m_conn) {
Debug(this,DebugInfo,"Text '%s' for %s [%p]",text,id().c_str(),this);
m_conn->SendUserInputIndicationString(text);
return true;
}
return false;
}
bool YateH323Chan::setDebug(Message& msg)
{
if (!Channel::setDebug(msg))
return false;
Lock lock(m_mutex);
if (m_conn)
m_conn->debugCopy(this);
return true;
}
bool UserHandler::received(Message &msg)
{
String tmp(msg.getValue("protocol"));
if (tmp != "h323")
return false;
tmp = msg.getValue("account");
tmp.trimBlanks();
if (tmp.null())
return false;
if (!hplugin.findEndpoint(tmp)) {
YateH323EndPoint* ep = new YateH323EndPoint(&msg,tmp);
ep->Init(&msg);
}
return true;
}
H323Driver::H323Driver()
: Driver("h323","varchans")
{
Output("Loaded module H.323 - based on OpenH323-" OPENH323_VERSION);
}
H323Driver::~H323Driver()
{
cleanup();
if (s_process) {
delete s_process;
s_process = 0;
}
}
bool H323Driver::received(Message &msg, int id)
{
bool ok = Driver::received(msg,id);
if (id == Halt)
cleanup();
return ok;
};
void H323Driver::cleanup()
{
m_endpoints.clear();
if (channels().count()) {
Debug(this,DebugFail,"Still having channels after clearing up all!");
channels().clear();
}
if (s_process) {
PSyncPoint terminationSync;
terminationSync.Signal();
Output("Waiting for OpenH323 to die");
terminationSync.Wait();
}
}
void H323Driver::statusParams(String& str)
{
Driver::statusParams(str);
str.append("cleaning=",",") << cleaningCount();
}
bool H323Driver::msgRoute(Message& msg)
{
String called = msg.getValue("called");
if (called.null() || (called.find('@') >= 0))
return false;
String line = msg.getValue("line");
if (line.null())
line = msg.getValue("account");
if (line && hplugin.findEndpoint(line)) {
// asked to route to a line we have locally
msg.setParam("line",line);
msg.retValue() = prefix() + called;
return true;
}
return false;
}
bool H323Driver::msgExecute(Message& msg, String& dest)
{
if (dest.null())
return false;
if (!msg.userData()) {
Debug(this,DebugWarn,"H.323 call found but no data channel!");
return false;
}
Debug(this,DebugInfo,"Found call to H.323 target='%s'",
dest.c_str());
PString p;
YateH323EndPoint* ep = hplugin.findEndpoint(msg.getValue("line"));
if (ep) {
YateH323Connection* conn = static_cast<YateH323Connection*>(
ep->MakeCallLocked(dest.c_str(),p,&msg));
if (conn) {
conn->Unlock();
return true;
}
// the only reason a YateH323Connection is not created is congestion
msg.setParam("error","congestion");
return false;
}
// endpoint unknown or not connected to gatekeeper
msg.setParam("error","offline");
return false;
};
YateH323EndPoint* H323Driver::findEndpoint(const String& ep) const
{
ObjList* l = m_endpoints.find(ep);
return static_cast<YateH323EndPoint*>(l ? l->get() : 0);
}
void H323Driver::initialize()
{
Output("Initializing module H.323");
s_cfg = Engine::configFile("h323chan");
s_cfg.load();
setup();
s_externalRtp = s_cfg.getBoolValue("general","external_rtp",false);
s_passtrough = s_cfg.getBoolValue("general","forward_rtp",false);
s_fallbackRtp = s_cfg.getBoolValue("general","fallback_rtp",true);
// mantain compatibility with old config files
s_passtrough = s_cfg.getBoolValue("general","passtrough_rtp",s_passtrough);
s_maxCleaning = s_cfg.getIntValue("general","maxcleaning",100);
maxRoute(s_cfg.getIntValue("incoming","maxqueue",5));
maxChans(s_cfg.getIntValue("ep","maxconns",0));
if (!s_process) {
installRelay(Halt);
s_process = new H323Process;
installRelay(Progress);
installRelay(Route);
Engine::install(new UserHandler);
}
int dbg = s_cfg.getIntValue("general","debug");
if (dbg < 0)
dbg = 0;
if (dbg > 10)
dbg = 10;
PTrace::Initialise(dbg,0,PTrace::Blocks | PTrace::Timestamp
| PTrace::Thread | PTrace::FileAndLine);
if (!m_endpoints.count()) {
NamedList* sect = s_cfg.getSection("ep");
YateH323EndPoint* ep = new YateH323EndPoint(sect);
ep->Init(sect);
int n = s_cfg.sections();
for (int i = 0; i < n; i++) {
sect = s_cfg.getSection(i);
if (!sect)
continue;
String s(*sect);
if (s.startSkip("ep ",false) && s) {
ep = new YateH323EndPoint(sect,s);
ep->Init(sect);
}
}
}
}
}; // anonymous namespace
/* vi: set ts=8 sw=4 sts=4 noet: */
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