mirror of
https://github.com/asterisk/asterisk.git
synced 2025-10-31 02:37:10 +00:00
b2b256eeef
1) r43540: Avoid possible deadlock on channel destruction 2) r43590: Disable fastStart if requested by remote side git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@43626 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2057 lines
59 KiB
C++
2057 lines
59 KiB
C++
#ifndef _GNU_SOURCE
|
|
#define _GNU_SOURCE
|
|
#endif
|
|
/*
|
|
* ast_h323.cpp
|
|
*
|
|
* OpenH323 Channel Driver for ASTERISK PBX.
|
|
* By Jeremy McNamara
|
|
* For The NuFone Network
|
|
*
|
|
* chan_h323 has been derived from code created by
|
|
* Michael Manousos and Mark Spencer
|
|
*
|
|
* This file is part of the chan_h323 driver for Asterisk
|
|
*
|
|
* chan_h323 is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* chan_h323 is distributed WITHOUT ANY WARRANTY; without even
|
|
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
* PURPOSE. See the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
* Version Info: $Id$
|
|
*/
|
|
#include <arpa/inet.h>
|
|
|
|
#include <list>
|
|
#include <string>
|
|
#include <algorithm>
|
|
|
|
#include <ptlib.h>
|
|
#include <h323.h>
|
|
#include <h323pdu.h>
|
|
#include <h323neg.h>
|
|
#include <mediafmt.h>
|
|
#include <lid.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
#include "asterisk/logger.h"
|
|
#include "asterisk/channel.h"
|
|
#include "asterisk/astobj.h"
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#include "chan_h323.h"
|
|
#include "ast_h323.h"
|
|
#include "cisco-h225.h"
|
|
#include "caps_h323.h"
|
|
|
|
/* PWlib Required Components */
|
|
#define MAJOR_VERSION 1
|
|
#define MINOR_VERSION 0
|
|
#define BUILD_TYPE ReleaseCode
|
|
#define BUILD_NUMBER 0
|
|
|
|
/** Counter for the number of connections */
|
|
static int channelsOpen;
|
|
|
|
/**
|
|
* We assume that only one endPoint should exist.
|
|
* The application cannot run the h323_end_point_create() more than once
|
|
* FIXME: Singleton this, for safety
|
|
*/
|
|
static MyH323EndPoint *endPoint = NULL;
|
|
|
|
/** PWLib entry point */
|
|
static MyProcess *localProcess = NULL;
|
|
|
|
static int _timerChangePipe[2];
|
|
|
|
static unsigned traceOptions = PTrace::Timestamp | PTrace::Thread | PTrace::FileAndLine;
|
|
|
|
class PAsteriskLog : public PObject, public iostream {
|
|
PCLASSINFO(PAsteriskLog, PObject);
|
|
|
|
public:
|
|
PAsteriskLog() : iostream(cout.rdbuf()) { init(&buffer); }
|
|
~PAsteriskLog() { flush(); }
|
|
|
|
private:
|
|
PAsteriskLog(const PAsteriskLog &) : iostream(cout.rdbuf()) { }
|
|
PAsteriskLog & operator=(const PAsteriskLog &) { return *this; }
|
|
|
|
class Buffer : public streambuf {
|
|
public:
|
|
virtual int overflow(int=EOF);
|
|
virtual int underflow();
|
|
virtual int sync();
|
|
PString string;
|
|
} buffer;
|
|
friend class Buffer;
|
|
};
|
|
|
|
static PAsteriskLog *logstream = NULL;
|
|
|
|
int PAsteriskLog::Buffer::overflow(int c)
|
|
{
|
|
if (pptr() >= epptr()) {
|
|
int ppos = pptr() - pbase();
|
|
char *newptr = string.GetPointer(string.GetSize() + 2000);
|
|
setp(newptr, newptr + string.GetSize() - 1);
|
|
pbump(ppos);
|
|
}
|
|
if (c != EOF) {
|
|
*pptr() = (char)c;
|
|
pbump(1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int PAsteriskLog::Buffer::underflow()
|
|
{
|
|
return EOF;
|
|
}
|
|
|
|
int PAsteriskLog::Buffer::sync()
|
|
{
|
|
char *str = strdup(string);
|
|
char *s, *s1;
|
|
char c;
|
|
|
|
/* Pass each line with different ast_verbose() call */
|
|
for (s = str; s && *s; s = s1) {
|
|
s1 = strchr(s, '\n');
|
|
if (!s1)
|
|
s1 = s + strlen(s);
|
|
else
|
|
s1++;
|
|
c = *s1;
|
|
*s1 = '\0';
|
|
ast_verbose("%s", s);
|
|
*s1 = c;
|
|
}
|
|
free(str);
|
|
|
|
string = PString();
|
|
char *base = string.GetPointer(2000);
|
|
setp(base, base + string.GetSize() - 1);
|
|
return 0;
|
|
}
|
|
|
|
static ostream &my_endl(ostream &os)
|
|
{
|
|
if (logstream) {
|
|
PTrace::SetOptions(traceOptions);
|
|
return PTrace::End(os);
|
|
}
|
|
return endl(os);
|
|
}
|
|
|
|
#define cout \
|
|
(logstream ? (PTrace::ClearOptions((unsigned)-1), PTrace::Begin(0, __FILE__, __LINE__)) : std::cout)
|
|
#define endl my_endl
|
|
|
|
/* Special class designed to call cleanup code on module destruction */
|
|
class MyH323_Shutdown {
|
|
public:
|
|
MyH323_Shutdown() { };
|
|
~MyH323_Shutdown()
|
|
{
|
|
h323_end_process();
|
|
};
|
|
};
|
|
|
|
MyProcess::MyProcess(): PProcess("The NuFone Network's",
|
|
"H.323 Channel Driver for Asterisk",
|
|
MAJOR_VERSION, MINOR_VERSION, BUILD_TYPE, BUILD_NUMBER)
|
|
{
|
|
/* Call shutdown when module being unload or asterisk has been stopped */
|
|
static MyH323_Shutdown x;
|
|
|
|
/* Fix missed one in PWLib */
|
|
PX_firstTimeStart = FALSE;
|
|
Resume();
|
|
}
|
|
|
|
MyProcess::~MyProcess()
|
|
{
|
|
_timerChangePipe[0] = timerChangePipe[0];
|
|
_timerChangePipe[1] = timerChangePipe[1];
|
|
}
|
|
|
|
void MyProcess::Main()
|
|
{
|
|
PTrace::Initialise(PTrace::GetLevel(), NULL, traceOptions);
|
|
PTrace::SetStream(logstream);
|
|
|
|
cout << " == Creating H.323 Endpoint" << endl;
|
|
if (endPoint) {
|
|
cout << " == ENDPOINT ALREADY CREATED" << endl;
|
|
return;
|
|
}
|
|
endPoint = new MyH323EndPoint();
|
|
/* Due to a bug in the H.323 recomendation/stack we should request a sane
|
|
amount of bandwidth from the GK - this function is ignored if not using a GK
|
|
We are requesting 128 (64k in each direction), which is the worst case codec. */
|
|
endPoint->SetInitialBandwidth(1280);
|
|
}
|
|
|
|
void PAssertFunc(const char *msg)
|
|
{
|
|
ast_log(LOG_ERROR, "%s\n", msg);
|
|
/* XXX: Probably we need to crash here */
|
|
}
|
|
|
|
|
|
/** MyH323EndPoint
|
|
*/
|
|
MyH323EndPoint::MyH323EndPoint()
|
|
: H323EndPoint()
|
|
{
|
|
// Capabilities will be negotiated on per-connection basis
|
|
capabilities.RemoveAll();
|
|
}
|
|
|
|
/** The fullAddress parameter is used directly in the MakeCall method so
|
|
* the General form for the fullAddress argument is :
|
|
* [alias@][transport$]host[:port]
|
|
* default values: alias = the same value as host.
|
|
* transport = ip.
|
|
* port = 1720.
|
|
*/
|
|
int MyH323EndPoint::MyMakeCall(const PString & dest, PString & token, void *_callReference, void *_opts)
|
|
{
|
|
PString fullAddress;
|
|
MyH323Connection * connection;
|
|
H323Transport *transport = NULL;
|
|
unsigned int *callReference = (unsigned int *)_callReference;
|
|
call_options_t *opts = (call_options_t *)_opts;
|
|
|
|
/* Determine whether we are using a gatekeeper or not. */
|
|
if (GetGatekeeper()) {
|
|
fullAddress = dest;
|
|
if (h323debug) {
|
|
cout << " -- Making call to " << fullAddress << " using gatekeeper." << endl;
|
|
}
|
|
} else {
|
|
fullAddress = dest;
|
|
if (h323debug) {
|
|
cout << " -- Making call to " << fullAddress << " without gatekeeper." << endl;
|
|
}
|
|
/* Use bindaddr for outgoing calls too if we don't use gatekeeper */
|
|
if (listeners.GetSize() > 0) {
|
|
H323TransportAddress taddr = listeners[0].GetTransportAddress();
|
|
PIPSocket::Address addr;
|
|
WORD port;
|
|
if (taddr.GetIpAndPort(addr, port)) {
|
|
/* Create own transport for specific addresses only */
|
|
if (addr) {
|
|
if (h323debug)
|
|
cout << "Using " << addr << " for outbound call" << endl;
|
|
transport = new MyH323TransportTCP(*this, addr);
|
|
if (!transport)
|
|
cout << "Unable to create transport for outgoing call" << endl;
|
|
}
|
|
} else
|
|
cout << "Unable to get address and port" << endl;
|
|
}
|
|
}
|
|
if (!(connection = (MyH323Connection *)H323EndPoint::MakeCallLocked(fullAddress, token, opts, transport))) {
|
|
if (h323debug) {
|
|
cout << "Error making call to \"" << fullAddress << '"' << endl;
|
|
}
|
|
return 1;
|
|
}
|
|
*callReference = connection->GetCallReference();
|
|
|
|
if (h323debug) {
|
|
cout << "\t-- " << GetLocalUserName() << " is calling host " << fullAddress << endl;
|
|
cout << "\t-- Call token is " << (const char *)token << endl;
|
|
cout << "\t-- Call reference is " << *callReference << endl;
|
|
cout << "\t-- DTMF Payload is " << connection->dtmfCodec << endl;
|
|
}
|
|
connection->Unlock();
|
|
return 0;
|
|
}
|
|
|
|
void MyH323EndPoint::SetEndpointTypeInfo( H225_EndpointType & info ) const
|
|
{
|
|
H323EndPoint::SetEndpointTypeInfo(info);
|
|
|
|
if (terminalType == e_GatewayOnly){
|
|
info.RemoveOptionalField(H225_EndpointType::e_terminal);
|
|
info.IncludeOptionalField(H225_EndpointType::e_gateway);
|
|
}
|
|
|
|
info.m_gateway.IncludeOptionalField(H225_GatewayInfo::e_protocol);
|
|
info.m_gateway.m_protocol.SetSize(1);
|
|
H225_SupportedProtocols &protocol=info.m_gateway.m_protocol[0];
|
|
protocol.SetTag(H225_SupportedProtocols::e_voice);
|
|
PINDEX as=SupportedPrefixes.GetSize();
|
|
((H225_VoiceCaps &)protocol).m_supportedPrefixes.SetSize(as);
|
|
for (PINDEX p=0; p<as; p++) {
|
|
H323SetAliasAddress(SupportedPrefixes[p], ((H225_VoiceCaps &)protocol).m_supportedPrefixes[p].m_prefix, H225_AliasAddress::e_dialedDigits);
|
|
}
|
|
}
|
|
|
|
void MyH323EndPoint::SetGateway(void)
|
|
{
|
|
terminalType = e_GatewayOnly;
|
|
}
|
|
|
|
BOOL MyH323EndPoint::ClearCall(const PString & token, H323Connection::CallEndReason reason)
|
|
{
|
|
if (h323debug) {
|
|
#ifdef PTRACING
|
|
cout << "\t-- ClearCall: Request to clear call with token " << token << ", cause " << reason << endl;
|
|
#else
|
|
cout << "\t-- ClearCall: Request to clear call with token " << token << ", cause [" << (int)reason << "]" << endl;
|
|
#endif
|
|
}
|
|
return H323EndPoint::ClearCall(token, reason);
|
|
}
|
|
|
|
BOOL MyH323EndPoint::ClearCall(const PString & token)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t-- ClearCall: Request to clear call with token " << token << endl;
|
|
}
|
|
return H323EndPoint::ClearCall(token, H323Connection::EndedByLocalUser);
|
|
}
|
|
|
|
void MyH323EndPoint::SendUserTone(const PString &token, char tone)
|
|
{
|
|
H323Connection *connection = NULL;
|
|
|
|
connection = FindConnectionWithLock(token);
|
|
if (connection != NULL) {
|
|
connection->SendUserInputTone(tone, 500);
|
|
connection->Unlock();
|
|
}
|
|
}
|
|
|
|
void MyH323EndPoint::OnClosedLogicalChannel(H323Connection & connection, const H323Channel & channel)
|
|
{
|
|
channelsOpen--;
|
|
if (h323debug) {
|
|
cout << "\t\tchannelsOpen = " << channelsOpen << endl;
|
|
}
|
|
H323EndPoint::OnClosedLogicalChannel(connection, channel);
|
|
}
|
|
|
|
BOOL MyH323EndPoint::OnConnectionForwarded(H323Connection & connection,
|
|
const PString & forwardParty,
|
|
const H323SignalPDU & pdu)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t-- Call Forwarded to " << forwardParty << endl;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL MyH323EndPoint::ForwardConnection(H323Connection & connection,
|
|
const PString & forwardParty,
|
|
const H323SignalPDU & pdu)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t-- Forwarding call to " << forwardParty << endl;
|
|
}
|
|
return H323EndPoint::ForwardConnection(connection, forwardParty, pdu);
|
|
}
|
|
|
|
void MyH323EndPoint::OnConnectionEstablished(H323Connection & connection, const PString & estCallToken)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t=-= In OnConnectionEstablished for call " << connection.GetCallReference() << endl;
|
|
cout << "\t\t-- Connection Established with \"" << connection.GetRemotePartyName() << "\"" << endl;
|
|
}
|
|
on_connection_established(connection.GetCallReference(), (const char *)connection.GetCallToken());
|
|
}
|
|
|
|
/** OnConnectionCleared callback function is called upon the dropping of an established
|
|
* H323 connection.
|
|
*/
|
|
void MyH323EndPoint::OnConnectionCleared(H323Connection & connection, const PString & clearedCallToken)
|
|
{
|
|
PString remoteName = connection.GetRemotePartyName();
|
|
|
|
switch (connection.GetCallEndReason()) {
|
|
case H323Connection::EndedByCallForwarded:
|
|
if (h323debug) {
|
|
cout << "-- " << remoteName << " has forwarded the call" << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByRemoteUser:
|
|
if (h323debug) {
|
|
cout << "-- " << remoteName << " has cleared the call" << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByCallerAbort:
|
|
if (h323debug) {
|
|
cout << "-- " << remoteName << " has stopped calling" << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByRefusal:
|
|
if (h323debug) {
|
|
cout << "-- " << remoteName << " did not accept your call" << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByRemoteBusy:
|
|
if (h323debug) {
|
|
cout << "-- " << remoteName << " was busy" << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByRemoteCongestion:
|
|
if (h323debug) {
|
|
cout << "-- Congested link to " << remoteName << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByNoAnswer:
|
|
if (h323debug) {
|
|
cout << "-- " << remoteName << " did not answer your call" << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByTransportFail:
|
|
if (h323debug) {
|
|
cout << "-- Call with " << remoteName << " ended abnormally" << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByCapabilityExchange:
|
|
if (h323debug) {
|
|
cout << "-- Could not find common codec with " << remoteName << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByNoAccept:
|
|
if (h323debug) {
|
|
cout << "-- Did not accept incoming call from " << remoteName << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByAnswerDenied:
|
|
if (h323debug) {
|
|
cout << "-- Refused incoming call from " << remoteName << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByNoUser:
|
|
if (h323debug) {
|
|
cout << "-- Remote endpoint could not find user: " << remoteName << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByNoBandwidth:
|
|
if (h323debug) {
|
|
cout << "-- Call to " << remoteName << " aborted, insufficient bandwidth." << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByUnreachable:
|
|
if (h323debug) {
|
|
cout << "-- " << remoteName << " could not be reached." << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByHostOffline:
|
|
if (h323debug) {
|
|
cout << "-- " << remoteName << " is not online." << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByNoEndPoint:
|
|
if (h323debug) {
|
|
cout << "-- No phone running for " << remoteName << endl;
|
|
}
|
|
break;
|
|
case H323Connection::EndedByConnectFail:
|
|
if (h323debug) {
|
|
cout << "-- Transport error calling " << remoteName << endl;
|
|
}
|
|
break;
|
|
default:
|
|
if (h323debug) {
|
|
#ifdef PTRACING
|
|
cout << " -- Call with " << remoteName << " completed (" << connection.GetCallEndReason() << ")" << endl;
|
|
#else
|
|
cout << " -- Call with " << remoteName << " completed ([" << (int)connection.GetCallEndReason() << "])" << endl;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if (connection.IsEstablished()) {
|
|
if (h323debug) {
|
|
cout << "\t-- Call duration " << setprecision(0) << setw(5) << (PTime() - connection.GetConnectionStartTime()) << endl;
|
|
}
|
|
}
|
|
/* Invoke the PBX application registered callback */
|
|
on_connection_cleared(connection.GetCallReference(), clearedCallToken);
|
|
return;
|
|
}
|
|
|
|
H323Connection * MyH323EndPoint::CreateConnection(unsigned callReference, void *userData, H323Transport *transport, H323SignalPDU *setupPDU)
|
|
{
|
|
unsigned options = 0;
|
|
call_options_t *opts = (call_options_t *)userData;
|
|
MyH323Connection *conn;
|
|
|
|
if (opts && opts->fastStart) {
|
|
options |= H323Connection::FastStartOptionEnable;
|
|
} else {
|
|
options |= H323Connection::FastStartOptionDisable;
|
|
}
|
|
if (opts && opts->h245Tunneling) {
|
|
options |= H323Connection::H245TunnelingOptionEnable;
|
|
} else {
|
|
options |= H323Connection::H245TunnelingOptionDisable;
|
|
}
|
|
/* Disable until I can figure out the proper way to deal with this */
|
|
#if 0
|
|
if (opts->silenceSuppression) {
|
|
options |= H323Connection::SilenceSuppresionOptionEnable;
|
|
} else {
|
|
options |= H323Connection::SilenceSUppressionOptionDisable;
|
|
}
|
|
#endif
|
|
conn = new MyH323Connection(*this, callReference, options);
|
|
if (conn) {
|
|
if (opts)
|
|
conn->SetCallOptions(opts, (setupPDU ? TRUE : FALSE));
|
|
}
|
|
return conn;
|
|
}
|
|
|
|
/* MyH323Connection Implementation */
|
|
MyH323Connection::MyH323Connection(MyH323EndPoint & ep, unsigned callReference,
|
|
unsigned options)
|
|
: H323Connection(ep, callReference, options)
|
|
{
|
|
cause = -1;
|
|
sessionId = 0;
|
|
bridging = FALSE;
|
|
progressSetup = progressAlert = 0;
|
|
dtmfMode = 0;
|
|
dtmfCodec = (RTP_DataFrame::PayloadTypes)0;
|
|
redirect_reason = -1;
|
|
#ifdef TUNNELLING
|
|
tunnelOptions = remoteTunnelOptions = 0;
|
|
#endif
|
|
if (h323debug) {
|
|
cout << " == New H.323 Connection created." << endl;
|
|
}
|
|
return;
|
|
}
|
|
|
|
MyH323Connection::~MyH323Connection()
|
|
{
|
|
if (h323debug) {
|
|
cout << " == H.323 Connection deleted." << endl;
|
|
}
|
|
return;
|
|
}
|
|
|
|
BOOL MyH323Connection::OnReceivedProgress(const H323SignalPDU &pdu)
|
|
{
|
|
BOOL isInband;
|
|
unsigned pi;
|
|
|
|
if (!H323Connection::OnReceivedProgress(pdu)) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!pdu.GetQ931().GetProgressIndicator(pi))
|
|
pi = 0;
|
|
if (h323debug) {
|
|
cout << "\t- Progress Indicator: " << pi << endl;
|
|
}
|
|
|
|
switch(pi) {
|
|
case Q931::ProgressNotEndToEndISDN:
|
|
case Q931::ProgressInbandInformationAvailable:
|
|
isInband = TRUE;
|
|
break;
|
|
default:
|
|
isInband = FALSE;
|
|
}
|
|
on_progress(GetCallReference(), (const char *)GetCallToken(), isInband);
|
|
|
|
return connectionState != ShuttingDownConnection;
|
|
}
|
|
|
|
H323Connection::AnswerCallResponse MyH323Connection::OnAnswerCall(const PString & caller,
|
|
const H323SignalPDU & setupPDU,
|
|
H323SignalPDU & connectPDU)
|
|
{
|
|
unsigned pi;
|
|
|
|
if (h323debug) {
|
|
cout << "\t=-= In OnAnswerCall for call " << GetCallReference() << endl;
|
|
}
|
|
|
|
if (connectionState == ShuttingDownConnection)
|
|
return H323Connection::AnswerCallDenied;
|
|
|
|
if (!setupPDU.GetQ931().GetProgressIndicator(pi)) {
|
|
pi = 0;
|
|
}
|
|
if (h323debug) {
|
|
cout << "\t\t- Progress Indicator: " << pi << endl;
|
|
}
|
|
if (progressAlert) {
|
|
pi = progressAlert;
|
|
} else if (pi == Q931::ProgressOriginNotISDN) {
|
|
pi = Q931::ProgressInbandInformationAvailable;
|
|
}
|
|
if (pi && alertingPDU) {
|
|
alertingPDU->GetQ931().SetProgressIndicator(pi);
|
|
}
|
|
if (h323debug) {
|
|
cout << "\t\t- Inserting PI of " << pi << " into ALERTING message" << endl;
|
|
}
|
|
|
|
#ifdef TUNNELLING
|
|
if (alertingPDU)
|
|
EmbedTunneledInfo(*alertingPDU);
|
|
EmbedTunneledInfo(connectPDU);
|
|
#endif
|
|
|
|
if (!on_answer_call(GetCallReference(), (const char *)GetCallToken())) {
|
|
return H323Connection::AnswerCallDenied;
|
|
}
|
|
/* The call will be answered later with "AnsweringCall()" function.
|
|
*/
|
|
return ((pi || (fastStartState != FastStartDisabled)) ? AnswerCallDeferredWithMedia : AnswerCallDeferred);
|
|
}
|
|
|
|
BOOL MyH323Connection::OnAlerting(const H323SignalPDU & alertingPDU, const PString & username)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t=-= In OnAlerting for call " << GetCallReference()
|
|
<< ": sessionId=" << sessionId << endl;
|
|
cout << "\t-- Ringing phone for \"" << username << "\"" << endl;
|
|
}
|
|
|
|
if (on_progress) {
|
|
BOOL isInband;
|
|
unsigned alertingPI;
|
|
|
|
if (!alertingPDU.GetQ931().GetProgressIndicator(alertingPI)) {
|
|
alertingPI = 0;
|
|
}
|
|
if (h323debug) {
|
|
cout << "\t\t- Progress Indicator: " << alertingPI << endl;
|
|
}
|
|
|
|
switch(alertingPI) {
|
|
case Q931::ProgressNotEndToEndISDN:
|
|
case Q931::ProgressInbandInformationAvailable:
|
|
isInband = TRUE;
|
|
break;
|
|
default:
|
|
isInband = FALSE;
|
|
}
|
|
on_progress(GetCallReference(), (const char *)GetCallToken(), isInband);
|
|
}
|
|
on_chan_ringing(GetCallReference(), (const char *)GetCallToken() );
|
|
return connectionState != ShuttingDownConnection;
|
|
}
|
|
|
|
void MyH323Connection::SetCallOptions(void *o, BOOL isIncoming)
|
|
{
|
|
call_options_t *opts = (call_options_t *)o;
|
|
|
|
progressSetup = opts->progress_setup;
|
|
progressAlert = opts->progress_alert;
|
|
dtmfCodec = (RTP_DataFrame::PayloadTypes)opts->dtmfcodec;
|
|
dtmfMode = opts->dtmfmode;
|
|
|
|
if (isIncoming) {
|
|
fastStartState = (opts->fastStart ? FastStartInitiate : FastStartDisabled);
|
|
h245Tunneling = (opts->h245Tunneling ? TRUE : FALSE);
|
|
} else {
|
|
SetLocalPartyName(PString(opts->cid_num));
|
|
SetDisplayName(PString(opts->cid_name));
|
|
if (opts->redirect_reason >= 0) {
|
|
rdnis = PString(opts->cid_rdnis);
|
|
redirect_reason = opts->redirect_reason;
|
|
}
|
|
}
|
|
tunnelOptions = opts->tunnelOptions;
|
|
}
|
|
|
|
void MyH323Connection::SetCallDetails(void *callDetails, const H323SignalPDU &setupPDU, BOOL isIncoming)
|
|
{
|
|
PString sourceE164;
|
|
PString destE164;
|
|
PString sourceAliases;
|
|
PString destAliases;
|
|
char *s, *s1;
|
|
call_details_t *cd = (call_details_t *)callDetails;
|
|
|
|
memset(cd, 0, sizeof(*cd));
|
|
cd->call_reference = GetCallReference();
|
|
cd->call_token = strdup((const char *)GetCallToken());
|
|
|
|
sourceE164 = "";
|
|
setupPDU.GetSourceE164(sourceE164);
|
|
cd->call_source_e164 = strdup((const char *)sourceE164);
|
|
|
|
destE164 = "";
|
|
setupPDU.GetDestinationE164(destE164);
|
|
cd->call_dest_e164 = strdup((const char *)destE164);
|
|
|
|
/* XXX Is it possible to have this information for outgoing calls too? XXX */
|
|
if (isIncoming) {
|
|
PString sourceName;
|
|
PIPSocket::Address Ip;
|
|
WORD sourcePort;
|
|
PString redirect_number;
|
|
unsigned redirect_reason;
|
|
|
|
sourceName = setupPDU.GetQ931().GetDisplayName();
|
|
cd->call_source_name = strdup((const char *)sourceName);
|
|
|
|
GetSignallingChannel()->GetRemoteAddress().GetIpAndPort(Ip, sourcePort);
|
|
cd->sourceIp = strdup((const char *)Ip.AsString());
|
|
|
|
if(setupPDU.GetQ931().GetRedirectingNumber(redirect_number, NULL, NULL, NULL, NULL, &redirect_reason, 0, 0, 0)) {
|
|
cd->redirect_number = strdup((const char *)redirect_number);
|
|
cd->redirect_reason = redirect_reason;
|
|
}
|
|
else
|
|
cd->redirect_reason = -1;
|
|
}
|
|
|
|
/* Convert complex strings */
|
|
// FIXME: deal more than one source alias
|
|
sourceAliases = setupPDU.GetSourceAliases();
|
|
s1 = strdup((const char *)sourceAliases);
|
|
if ((s = strchr(s1, ' ')) != NULL)
|
|
*s = '\0';
|
|
if ((s = strchr(s1, '\t')) != NULL)
|
|
*s = '\0';
|
|
cd->call_source_aliases = s1;
|
|
|
|
destAliases = setupPDU.GetDestinationAlias();
|
|
s1 = strdup((const char *)destAliases);
|
|
if ((s = strchr(s1, ' ')) != NULL)
|
|
*s = '\0';
|
|
if ((s = strchr(s1, '\t')) != NULL)
|
|
*s = '\0';
|
|
cd->call_dest_alias = s1;
|
|
}
|
|
|
|
#ifdef TUNNELLING
|
|
static BOOL FetchInformationElements(Q931 &q931, const PBYTEArray &data)
|
|
{
|
|
PINDEX offset = 0;
|
|
|
|
while (offset < data.GetSize()) {
|
|
// Get field discriminator
|
|
int discriminator = data[offset++];
|
|
|
|
#if 0
|
|
/* Do not overwrite existing IEs */
|
|
if (q931.HasIE((Q931::InformationElementCodes)discriminator)) {
|
|
if ((discriminatir & 0x80) == 0)
|
|
offset += data[offset++];
|
|
if (offset > data.GetSize())
|
|
return FALSE;
|
|
continue;
|
|
}
|
|
#endif
|
|
|
|
PBYTEArray * item = new PBYTEArray;
|
|
|
|
// For discriminator with high bit set there is no data
|
|
if ((discriminator & 0x80) == 0) {
|
|
int len = data[offset++];
|
|
|
|
#if 0 // That is not H.225 but regular Q.931 (ISDN) IEs
|
|
if (discriminator == UserUserIE) {
|
|
// Special case of User-user field. See 7.2.2.31/H.225.0v4.
|
|
len <<= 8;
|
|
len |= data[offset++];
|
|
|
|
// we also have a protocol discriminator, which we ignore
|
|
offset++;
|
|
|
|
// before decrementing the length, make sure it is not zero
|
|
if (len == 0)
|
|
return FALSE;
|
|
|
|
// adjust for protocol discriminator
|
|
len--;
|
|
}
|
|
#endif
|
|
|
|
if (offset + len > data.GetSize()) {
|
|
delete item;
|
|
return FALSE;
|
|
}
|
|
|
|
memcpy(item->GetPointer(len), (const BYTE *)data+offset, len);
|
|
offset += len;
|
|
}
|
|
|
|
q931.SetIE((Q931::InformationElementCodes)discriminator, *item);
|
|
delete item;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL FetchCiscoTunneledInfo(Q931 &q931, const H323SignalPDU &pdu)
|
|
{
|
|
BOOL res = FALSE;
|
|
const H225_H323_UU_PDU &uuPDU = pdu.m_h323_uu_pdu;
|
|
|
|
if(uuPDU.HasOptionalField(H225_H323_UU_PDU::e_nonStandardControl)) {
|
|
for(int i = 0; i < uuPDU.m_nonStandardControl.GetSize(); ++i) {
|
|
const H225_NonStandardParameter &np = uuPDU.m_nonStandardControl[i];
|
|
const H225_NonStandardIdentifier &id = np.m_nonStandardIdentifier;
|
|
if (id.GetTag() == H225_NonStandardIdentifier::e_h221NonStandard) {
|
|
const H225_H221NonStandard &ni = id;
|
|
/* Check for Cisco */
|
|
if ((ni.m_t35CountryCode == 181) && (ni.m_t35Extension == 0) && (ni.m_manufacturerCode == 18)) {
|
|
const PBYTEArray &data = np.m_data;
|
|
if (h323debug)
|
|
cout << setprecision(0) << "Received non-standard Cisco extension data " << np.m_data << endl;
|
|
CISCO_H225_H323_UU_NonStdInfo c;
|
|
PPER_Stream strm(data);
|
|
if (c.Decode(strm)) {
|
|
BOOL haveIEs = FALSE;
|
|
if (h323debug)
|
|
cout << setprecision(0) << "H323_UU_NonStdInfo = " << c << endl;
|
|
if (c.HasOptionalField(CISCO_H225_H323_UU_NonStdInfo::e_protoParam)) {
|
|
FetchInformationElements(q931, c.m_protoParam.m_qsigNonStdInfo.m_rawMesg);
|
|
haveIEs = TRUE;
|
|
}
|
|
if (c.HasOptionalField(CISCO_H225_H323_UU_NonStdInfo::e_commonParam)) {
|
|
FetchInformationElements(q931, c.m_commonParam.m_redirectIEinfo.m_redirectIE);
|
|
haveIEs = TRUE;
|
|
}
|
|
if (haveIEs && h323debug)
|
|
cout << setprecision(0) << "Information elements collected:" << q931 << endl;
|
|
res = TRUE;
|
|
} else {
|
|
cout << "ERROR while decoding non-standard Cisco extension" << endl;
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static BOOL EmbedCiscoTunneledInfo(H323SignalPDU &pdu)
|
|
{
|
|
const static Q931::InformationElementCodes codes[] =
|
|
{ Q931::RedirectingNumberIE, Q931::FacilityIE };
|
|
|
|
BOOL res = FALSE;
|
|
BOOL notRedirOnly = FALSE;
|
|
Q931 tmpQ931;
|
|
Q931 &q931 = pdu.GetQ931();
|
|
|
|
for(unsigned i = 0; i < (sizeof(codes) / sizeof(codes[0])); ++i) {
|
|
if (q931.HasIE(codes[i])) {
|
|
tmpQ931.SetIE(codes[i], q931.GetIE(codes[i]));
|
|
q931.RemoveIE(codes[i]);
|
|
if (codes[i] != Q931::RedirectingNumberIE)
|
|
notRedirOnly = TRUE;
|
|
res = TRUE;
|
|
}
|
|
}
|
|
/* Have something to embed */
|
|
if (res) {
|
|
PBYTEArray msg;
|
|
if (!tmpQ931.Encode(msg))
|
|
return FALSE;
|
|
PBYTEArray ies(msg.GetPointer() + 5, msg.GetSize() - 5);
|
|
|
|
H225_H323_UU_PDU &uuPDU = pdu.m_h323_uu_pdu;
|
|
if(!uuPDU.HasOptionalField(H225_H323_UU_PDU::e_nonStandardControl)) {
|
|
uuPDU.IncludeOptionalField(H225_H323_UU_PDU::e_nonStandardControl);
|
|
uuPDU.m_nonStandardControl.SetSize(0);
|
|
}
|
|
H225_NonStandardParameter *np = new H225_NonStandardParameter;
|
|
uuPDU.m_nonStandardControl.Append(np);
|
|
H225_NonStandardIdentifier &nsi = (*np).m_nonStandardIdentifier;
|
|
nsi.SetTag(H225_NonStandardIdentifier::e_h221NonStandard);
|
|
H225_H221NonStandard &ns = nsi;
|
|
ns.m_t35CountryCode = 181;
|
|
ns.m_t35Extension = 0;
|
|
ns.m_manufacturerCode = 18;
|
|
|
|
CISCO_H225_H323_UU_NonStdInfo c;
|
|
c.IncludeOptionalField(CISCO_H225_H323_UU_NonStdInfo::e_version);
|
|
c.m_version = 0;
|
|
|
|
if (notRedirOnly) {
|
|
c.IncludeOptionalField(CISCO_H225_H323_UU_NonStdInfo::e_protoParam);
|
|
CISCO_H225_QsigNonStdInfo &qsigInfo = c.m_protoParam.m_qsigNonStdInfo;
|
|
qsigInfo.m_iei = ies[0];
|
|
qsigInfo.m_rawMesg = ies;
|
|
} else {
|
|
c.IncludeOptionalField(CISCO_H225_H323_UU_NonStdInfo::e_commonParam);
|
|
c.m_commonParam.m_redirectIEinfo.m_redirectIE = ies;
|
|
}
|
|
PPER_Stream stream;
|
|
c.Encode(stream);
|
|
stream.CompleteEncoding();
|
|
(*np).m_data = stream;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static const char OID_QSIG[] = "1.3.12.9";
|
|
|
|
static BOOL FetchQSIGTunneledInfo(Q931 &q931, const H323SignalPDU &pdu)
|
|
{
|
|
BOOL res = FALSE;
|
|
const H225_H323_UU_PDU &uuPDU = pdu.m_h323_uu_pdu;
|
|
if (uuPDU.HasOptionalField(H225_H323_UU_PDU::e_tunnelledSignallingMessage)) {
|
|
const H225_H323_UU_PDU_tunnelledSignallingMessage &sig = uuPDU.m_tunnelledSignallingMessage;
|
|
const H225_TunnelledProtocol_id &proto = sig.m_tunnelledProtocolID.m_id;
|
|
if ((proto.GetTag() == H225_TunnelledProtocol_id::e_tunnelledProtocolObjectID) &&
|
|
(((const PASN_ObjectId &)proto).AsString() == OID_QSIG)) {
|
|
const H225_ArrayOf_PASN_OctetString &sigs = sig.m_messageContent;
|
|
for(int i = 0; i < sigs.GetSize(); ++i) {
|
|
const PASN_OctetString &msg = sigs[i];
|
|
if (h323debug)
|
|
cout << setprecision(0) << "Q.931 message data is " << msg << endl;
|
|
if(!q931.Decode((const PBYTEArray &)msg)) {
|
|
cout << "Error while decoding Q.931 message" << endl;
|
|
return FALSE;
|
|
}
|
|
res = TRUE;
|
|
if (h323debug)
|
|
cout << setprecision(0) << "Received QSIG message " << q931 << endl;
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static H225_EndpointType *GetEndpointType(H323SignalPDU &pdu)
|
|
{
|
|
if (!pdu.GetQ931().HasIE(Q931::UserUserIE))
|
|
return NULL;
|
|
|
|
H225_H323_UU_PDU_h323_message_body &body = pdu.m_h323_uu_pdu.m_h323_message_body;
|
|
switch (body.GetTag()) {
|
|
case H225_H323_UU_PDU_h323_message_body::e_setup:
|
|
return &((H225_Setup_UUIE &)body).m_sourceInfo;
|
|
case H225_H323_UU_PDU_h323_message_body::e_callProceeding:
|
|
return &((H225_CallProceeding_UUIE &)body).m_destinationInfo;
|
|
case H225_H323_UU_PDU_h323_message_body::e_connect:
|
|
return &((H225_Connect_UUIE &)body).m_destinationInfo;
|
|
case H225_H323_UU_PDU_h323_message_body::e_alerting:
|
|
return &((H225_Alerting_UUIE &)body).m_destinationInfo;
|
|
case H225_H323_UU_PDU_h323_message_body::e_facility:
|
|
return &((H225_Facility_UUIE &)body).m_destinationInfo;
|
|
case H225_H323_UU_PDU_h323_message_body::e_progress:
|
|
return &((H225_Progress_UUIE &)body).m_destinationInfo;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static BOOL QSIGTunnelRequested(H323SignalPDU &pdu)
|
|
{
|
|
H225_EndpointType *epType = GetEndpointType(pdu);
|
|
if (epType) {
|
|
if (!(*epType).HasOptionalField(H225_EndpointType::e_supportedTunnelledProtocols)) {
|
|
return FALSE;
|
|
}
|
|
H225_ArrayOf_TunnelledProtocol &protos = (*epType).m_supportedTunnelledProtocols;
|
|
for (int i = 0; i < protos.GetSize(); ++i)
|
|
{
|
|
if ((protos[i].GetTag() == H225_TunnelledProtocol_id::e_tunnelledProtocolObjectID) &&
|
|
(((const PASN_ObjectId &)protos[i]).AsString() == OID_QSIG)) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static BOOL EmbedQSIGTunneledInfo(H323SignalPDU &pdu)
|
|
{
|
|
const static Q931::InformationElementCodes codes[] =
|
|
{ Q931::RedirectingNumberIE, Q931::FacilityIE };
|
|
|
|
Q931 &q931 = pdu.GetQ931();
|
|
PBYTEArray message;
|
|
|
|
q931.Encode(message);
|
|
|
|
/* Remove non-standard IEs */
|
|
for(unsigned i = 0; i < (sizeof(codes) / sizeof(codes[0])); ++i) {
|
|
if (q931.HasIE(codes[i])) {
|
|
q931.RemoveIE(codes[i]);
|
|
}
|
|
}
|
|
|
|
H225_H323_UU_PDU &uuPDU = pdu.m_h323_uu_pdu;
|
|
H225_EndpointType *epType = GetEndpointType(pdu);
|
|
if (epType) {
|
|
if (!(*epType).HasOptionalField(H225_EndpointType::e_supportedTunnelledProtocols)) {
|
|
(*epType).IncludeOptionalField(H225_EndpointType::e_supportedTunnelledProtocols);
|
|
(*epType).m_supportedTunnelledProtocols.SetSize(0);
|
|
}
|
|
H225_ArrayOf_TunnelledProtocol &protos = (*epType).m_supportedTunnelledProtocols;
|
|
BOOL addQSIG = TRUE;
|
|
for (int i = 0; i < protos.GetSize(); ++i)
|
|
{
|
|
if ((protos[i].GetTag() == H225_TunnelledProtocol_id::e_tunnelledProtocolObjectID) &&
|
|
(((const PASN_ObjectId &)protos[i]).AsString() == OID_QSIG)) {
|
|
addQSIG = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
if (addQSIG) {
|
|
H225_TunnelledProtocol *proto = new H225_TunnelledProtocol;
|
|
(*proto).m_id.SetTag(H225_TunnelledProtocol_id::e_tunnelledProtocolObjectID);
|
|
(PASN_ObjectId &)(proto->m_id) = OID_QSIG;
|
|
protos.Append(proto);
|
|
}
|
|
}
|
|
if (!uuPDU.HasOptionalField(H225_H323_UU_PDU::e_tunnelledSignallingMessage))
|
|
uuPDU.IncludeOptionalField(H225_H323_UU_PDU::e_tunnelledSignallingMessage);
|
|
H225_H323_UU_PDU_tunnelledSignallingMessage &sig = uuPDU.m_tunnelledSignallingMessage;
|
|
H225_TunnelledProtocol_id &proto = sig.m_tunnelledProtocolID.m_id;
|
|
if ((proto.GetTag() != H225_TunnelledProtocol_id::e_tunnelledProtocolObjectID) ||
|
|
(((const PASN_ObjectId &)proto).AsString() != OID_QSIG)) {
|
|
proto.SetTag(H225_TunnelledProtocol_id::e_tunnelledProtocolObjectID);
|
|
(PASN_ObjectId &)proto = OID_QSIG;
|
|
sig.m_messageContent.SetSize(0);
|
|
}
|
|
PASN_OctetString *msg = new PASN_OctetString;
|
|
sig.m_messageContent.Append(msg);
|
|
*msg = message;
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL MyH323Connection::EmbedTunneledInfo(H323SignalPDU &pdu)
|
|
{
|
|
if ((tunnelOptions & H323_TUNNEL_QSIG) || (remoteTunnelOptions & H323_TUNNEL_QSIG))
|
|
EmbedQSIGTunneledInfo(pdu);
|
|
if ((tunnelOptions & H323_TUNNEL_CISCO) || (remoteTunnelOptions & H323_TUNNEL_CISCO))
|
|
EmbedCiscoTunneledInfo(pdu);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Handle tunneled messages */
|
|
BOOL MyH323Connection::HandleSignalPDU(H323SignalPDU &pdu)
|
|
{
|
|
if (pdu.GetQ931().HasIE(Q931::UserUserIE)) {
|
|
Q931 tunneledInfo;
|
|
const Q931 *q931Info;
|
|
|
|
q931Info = NULL;
|
|
if (FetchCiscoTunneledInfo(tunneledInfo, pdu)) {
|
|
q931Info = &tunneledInfo;
|
|
remoteTunnelOptions |= H323_TUNNEL_CISCO;
|
|
}
|
|
if (FetchQSIGTunneledInfo(tunneledInfo, pdu)) {
|
|
q931Info = &tunneledInfo;
|
|
remoteTunnelOptions |= H323_TUNNEL_QSIG;
|
|
}
|
|
if (!(remoteTunnelOptions & H323_TUNNEL_QSIG) && QSIGTunnelRequested(pdu)) {
|
|
remoteTunnelOptions |= H323_TUNNEL_QSIG;
|
|
}
|
|
if (q931Info) {
|
|
if (q931Info->HasIE(Q931::RedirectingNumberIE)) {
|
|
pdu.GetQ931().SetIE(Q931::RedirectingNumberIE, q931Info->GetIE(Q931::RedirectingNumberIE));
|
|
if (h323debug) {
|
|
PString number;
|
|
unsigned reason;
|
|
if(q931Info->GetRedirectingNumber(number, NULL, NULL, NULL, NULL, &reason, 0, 0, 0))
|
|
cout << "Got redirection from " << number << ", reason " << reason << endl;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return H323Connection::HandleSignalPDU(pdu);
|
|
}
|
|
#endif
|
|
|
|
BOOL MyH323Connection::OnReceivedSignalSetup(const H323SignalPDU & setupPDU)
|
|
{
|
|
call_details_t cd;
|
|
|
|
if (h323debug) {
|
|
cout << "\t--Received SETUP message" << endl;
|
|
}
|
|
|
|
if (connectionState == ShuttingDownConnection)
|
|
return FALSE;
|
|
|
|
SetCallDetails(&cd, setupPDU, TRUE);
|
|
|
|
/* Notify Asterisk of the request */
|
|
call_options_t *res = on_incoming_call(&cd);
|
|
|
|
if (!res) {
|
|
if (h323debug) {
|
|
cout << "\t-- Call Failed" << endl;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
SetCallOptions(res, TRUE);
|
|
|
|
/* Disable fastStart if requested by remote side */
|
|
if (h245Tunneling && !setupPDU.m_h323_uu_pdu.m_h245Tunneling) {
|
|
masterSlaveDeterminationProcedure->Stop();
|
|
capabilityExchangeProcedure->Stop();
|
|
PTRACE(3, "H225\tFast Start DISABLED!");
|
|
h245Tunneling = FALSE;
|
|
}
|
|
|
|
return H323Connection::OnReceivedSignalSetup(setupPDU);
|
|
}
|
|
|
|
BOOL MyH323Connection::OnSendSignalSetup(H323SignalPDU & setupPDU)
|
|
{
|
|
call_details_t cd;
|
|
|
|
if (h323debug) {
|
|
cout << "\t-- Sending SETUP message" << endl;
|
|
}
|
|
|
|
if (connectionState == ShuttingDownConnection)
|
|
return FALSE;
|
|
|
|
if (progressSetup)
|
|
setupPDU.GetQ931().SetProgressIndicator(progressSetup);
|
|
|
|
if (redirect_reason >= 0) {
|
|
setupPDU.GetQ931().SetRedirectingNumber(rdnis, 0, 0, 0, 0, redirect_reason);
|
|
/* OpenH323 incorrectly fills number IE when redirecting reason is specified - fix it */
|
|
PBYTEArray IE(setupPDU.GetQ931().GetIE(Q931::RedirectingNumberIE));
|
|
IE[0] = IE[0] & 0x7f;
|
|
IE[1] = IE[1] & 0x7f;
|
|
setupPDU.GetQ931().SetIE(Q931::RedirectingNumberIE, IE);
|
|
}
|
|
|
|
SetCallDetails(&cd, setupPDU, FALSE);
|
|
|
|
int res = on_outgoing_call(&cd);
|
|
if (!res) {
|
|
if (h323debug) {
|
|
cout << "\t-- Call Failed" << endl;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
#ifdef TUNNELLING
|
|
EmbedTunneledInfo(setupPDU);
|
|
#endif
|
|
|
|
return H323Connection::OnSendSignalSetup(setupPDU);
|
|
}
|
|
|
|
BOOL MyH323Connection::OnSendReleaseComplete(H323SignalPDU & releaseCompletePDU)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t-- Sending RELEASE COMPLETE" << endl;
|
|
}
|
|
if (cause > 0)
|
|
releaseCompletePDU.GetQ931().SetCause((Q931::CauseValues)cause);
|
|
|
|
#ifdef TUNNELLING
|
|
EmbedTunneledInfo(releaseCompletePDU);
|
|
#endif
|
|
|
|
return H323Connection::OnSendReleaseComplete(releaseCompletePDU);
|
|
}
|
|
|
|
BOOL MyH323Connection::OnReceivedFacility(const H323SignalPDU & pdu)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t-- Received Facility message... " << endl;
|
|
}
|
|
return H323Connection::OnReceivedFacility(pdu);
|
|
}
|
|
|
|
void MyH323Connection::OnReceivedReleaseComplete(const H323SignalPDU & pdu)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t-- Received RELEASE COMPLETE message..." << endl;
|
|
}
|
|
if (on_hangup)
|
|
on_hangup(GetCallReference(), (const char *)GetCallToken(), pdu.GetQ931().GetCause());
|
|
return H323Connection::OnReceivedReleaseComplete(pdu);
|
|
}
|
|
|
|
BOOL MyH323Connection::OnClosingLogicalChannel(H323Channel & channel)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t-- Closing logical channel..." << endl;
|
|
}
|
|
return H323Connection::OnClosingLogicalChannel(channel);
|
|
}
|
|
|
|
void MyH323Connection::SendUserInputTone(char tone, unsigned duration, unsigned logicalChannel, unsigned rtpTimestamp)
|
|
{
|
|
SendUserInputModes mode = GetRealSendUserInputMode();
|
|
// That is recursive call... Why?
|
|
// on_receive_digit(GetCallReference(), tone, (const char *)GetCallToken());
|
|
if ((tone != ' ') || (mode == SendUserInputAsTone) || (mode == SendUserInputAsInlineRFC2833)) {
|
|
if (h323debug) {
|
|
cout << "\t-- Sending user input tone (" << tone << ") to remote" << endl;
|
|
}
|
|
H323Connection::SendUserInputTone(tone, duration);
|
|
}
|
|
}
|
|
|
|
void MyH323Connection::OnUserInputTone(char tone, unsigned duration, unsigned logicalChannel, unsigned rtpTimestamp)
|
|
{
|
|
if (dtmfMode == H323_DTMF_RFC2833) {
|
|
if (h323debug) {
|
|
cout << "\t-- Received user input tone (" << tone << ") from remote" << endl;
|
|
}
|
|
on_receive_digit(GetCallReference(), tone, (const char *)GetCallToken(), duration);
|
|
}
|
|
}
|
|
|
|
void MyH323Connection::OnUserInputString(const PString &value)
|
|
{
|
|
if (h323debug) {
|
|
cout << "\t-- Received user input string (" << value << ") from remote." << endl;
|
|
}
|
|
on_receive_digit(GetCallReference(), value[0], (const char *)GetCallToken(), 0);
|
|
}
|
|
|
|
void MyH323Connection::OnSendCapabilitySet(H245_TerminalCapabilitySet & pdu)
|
|
{
|
|
PINDEX i;
|
|
|
|
H323Connection::OnSendCapabilitySet(pdu);
|
|
|
|
H245_ArrayOf_CapabilityTableEntry & tables = pdu.m_capabilityTable;
|
|
for(i = 0; i < tables.GetSize(); i++)
|
|
{
|
|
H245_CapabilityTableEntry & entry = tables[i];
|
|
if (entry.HasOptionalField(H245_CapabilityTableEntry::e_capability)) {
|
|
H245_Capability & cap = entry.m_capability;
|
|
if (cap.GetTag() == H245_Capability::e_receiveRTPAudioTelephonyEventCapability) {
|
|
H245_AudioTelephonyEventCapability & atec = cap;
|
|
atec.m_dynamicRTPPayloadType = dtmfCodec;
|
|
// on_set_rfc2833_payload(GetCallReference(), (const char *)GetCallToken(), (int)dtmfCodec);
|
|
if (h323debug) {
|
|
cout << "\t-- Transmitting RFC2833 on payload " <<
|
|
atec.m_dynamicRTPPayloadType << endl;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void MyH323Connection::OnSetLocalCapabilities()
|
|
{
|
|
if (on_setcapabilities)
|
|
on_setcapabilities(GetCallReference(), (const char *)callToken);
|
|
}
|
|
|
|
BOOL MyH323Connection::OnReceivedCapabilitySet(const H323Capabilities & remoteCaps,
|
|
const H245_MultiplexCapability * muxCap,
|
|
H245_TerminalCapabilitySetReject & reject)
|
|
{
|
|
struct __codec__ {
|
|
unsigned int asterisk_codec;
|
|
unsigned int h245_cap;
|
|
const char *oid;
|
|
};
|
|
static const struct __codec__ codecs[] = {
|
|
{ AST_FORMAT_G723_1, H245_AudioCapability::e_g7231 },
|
|
{ AST_FORMAT_GSM, H245_AudioCapability::e_gsmFullRate },
|
|
{ AST_FORMAT_ULAW, H245_AudioCapability::e_g711Ulaw64k },
|
|
{ AST_FORMAT_ALAW, H245_AudioCapability::e_g711Alaw64k },
|
|
{ AST_FORMAT_G729A, H245_AudioCapability::e_g729AnnexA },
|
|
{ AST_FORMAT_G729A, H245_AudioCapability::e_g729 },
|
|
#ifdef AST_FORMAT_MODEM
|
|
{ AST_FORMAT_MODEM, H245_DataApplicationCapability_application::e_t38fax },
|
|
#endif
|
|
{ 0 }
|
|
};
|
|
|
|
#if 0
|
|
static const struct __codec__ vcodecs[] = {
|
|
#ifdef HAVE_H261
|
|
{ AST_FORMAT_H261, H245_VideoCapability::e_h261VideoCapability },
|
|
#endif
|
|
#ifdef HAVE_H263
|
|
{ AST_FORMAT_H263, H245_VideoCapability::e_h263VideoCapability },
|
|
#endif
|
|
#ifdef HAVE_H264
|
|
{ AST_FORMAT_H264, H245_VideoCapability::e_genericVideoCapability, "0.0.8.241.0.0.1" },
|
|
#endif
|
|
{ 0 }
|
|
};
|
|
#endif
|
|
struct ast_codec_pref prefs;
|
|
|
|
if (!H323Connection::OnReceivedCapabilitySet(remoteCaps, muxCap, reject)) {
|
|
return FALSE;
|
|
}
|
|
|
|
const H323Capability * cap = remoteCaps.FindCapability(H323_UserInputCapability::SubTypeNames[H323_UserInputCapability::SignalToneRFC2833]);
|
|
if (cap != NULL) {
|
|
RTP_DataFrame::PayloadTypes pt = ((H323_UserInputCapability*)cap)->GetPayloadType();
|
|
on_set_rfc2833_payload(GetCallReference(), (const char *)GetCallToken(), (int)pt);
|
|
if ((dtmfMode == H323_DTMF_RFC2833) && (sendUserInputMode == SendUserInputAsTone))
|
|
sendUserInputMode = SendUserInputAsInlineRFC2833;
|
|
if (h323debug) {
|
|
cout << "\t-- Inbound RFC2833 on payload " << pt << endl;
|
|
}
|
|
}
|
|
memset(&prefs, 0, sizeof(prefs));
|
|
int peer_capabilities = 0;
|
|
for (int i = 0; i < remoteCapabilities.GetSize(); ++i) {
|
|
unsigned int subType = remoteCapabilities[i].GetSubType();
|
|
if (h323debug) {
|
|
cout << "Peer capability is " << remoteCapabilities[i] << endl;
|
|
}
|
|
switch(remoteCapabilities[i].GetMainType()) {
|
|
case H323Capability::e_Audio:
|
|
for (int x = 0; codecs[x].asterisk_codec > 0; ++x) {
|
|
if (subType == codecs[x].h245_cap) {
|
|
int ast_codec = codecs[x].asterisk_codec;
|
|
int ms = 0;
|
|
if (!(peer_capabilities & ast_codec)) {
|
|
struct ast_format_list format;
|
|
ast_codec_pref_append(&prefs, ast_codec);
|
|
format = ast_codec_pref_getsize(&prefs, ast_codec);
|
|
if ((ast_codec == AST_FORMAT_ALAW) || (ast_codec == AST_FORMAT_ULAW)) {
|
|
ms = remoteCapabilities[i].GetTxFramesInPacket();
|
|
if (ms > 60)
|
|
ms = format.cur_ms;
|
|
} else
|
|
ms = remoteCapabilities[i].GetTxFramesInPacket() * format.inc_ms;
|
|
ast_codec_pref_setsize(&prefs, ast_codec, ms);
|
|
}
|
|
if (h323debug) {
|
|
cout << "Found peer capability " << remoteCapabilities[i] << ", Asterisk code is " << ast_codec << ", frame size (in ms) is " << ms << endl;
|
|
}
|
|
peer_capabilities |= ast_codec;
|
|
}
|
|
}
|
|
break;
|
|
#if 0
|
|
case H323Capability::e_Video:
|
|
for (int x = 0; vcodecs[x].asterisk_codec > 0; ++x) {
|
|
if (subType == vcodecs[x].h245_cap) {
|
|
H245_CapabilityIdentifier *cap = NULL;
|
|
H245_GenericCapability y;
|
|
if (vcodecs[x].oid) {
|
|
cap = new H245_CapabilityIdentifier(H245_CapabilityIdentifier::e_standard);
|
|
PASN_ObjectId &object_id = *cap;
|
|
object_id = vcodecs[x].oid;
|
|
y.m_capabilityIdentifier = *cap;
|
|
}
|
|
if ((subType != H245_VideoCapability::e_genericVideoCapability) ||
|
|
(vcodecs[x].oid && ((const H323GenericVideoCapability &)remoteCapabilities[i]).IsGenericMatch((const H245_GenericCapability)y))) {
|
|
if (h323debug) {
|
|
cout << "Found peer video capability " << remoteCapabilities[i] << ", Asterisk code is " << vcodecs[x].asterisk_codec << endl;
|
|
}
|
|
peer_capabilities |= vcodecs[x].asterisk_codec;
|
|
}
|
|
if (cap)
|
|
delete(cap);
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
if (h323debug) {
|
|
char caps_str[1024], caps2_str[1024];
|
|
ast_codec_pref_string(&prefs, caps2_str, sizeof(caps2_str));
|
|
cout << "Peer capabilities = " << ast_getformatname_multiple(caps_str, sizeof(caps_str), peer_capabilities)
|
|
<< ", ordered list is " << caps2_str << endl;
|
|
}
|
|
#if 0
|
|
redir_capabilities &= peer_capabilities;
|
|
#endif
|
|
if (on_setpeercapabilities)
|
|
on_setpeercapabilities(GetCallReference(), (const char *)callToken, peer_capabilities, &prefs);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
H323Channel * MyH323Connection::CreateRealTimeLogicalChannel(const H323Capability & capability,
|
|
H323Channel::Directions dir,
|
|
unsigned sessionID,
|
|
const H245_H2250LogicalChannelParameters * /*param*/,
|
|
RTP_QOS * /*param*/ )
|
|
{
|
|
return new MyH323_ExternalRTPChannel(*this, capability, dir, sessionID);
|
|
}
|
|
|
|
/** This callback function is invoked once upon creation of each
|
|
* channel for an H323 session
|
|
*/
|
|
BOOL MyH323Connection::OnStartLogicalChannel(H323Channel & channel)
|
|
{
|
|
/* Increase the count of channels we have open */
|
|
channelsOpen++;
|
|
|
|
if (h323debug) {
|
|
cout << "\t-- Started logical channel: "
|
|
<< ((channel.GetDirection() == H323Channel::IsTransmitter) ? "sending " : ((channel.GetDirection() == H323Channel::IsReceiver) ? "receiving " : " "))
|
|
<< (const char *)(channel.GetCapability()).GetFormatName() << endl;
|
|
cout << "\t\t-- channelsOpen = " << channelsOpen << endl;
|
|
}
|
|
return connectionState != ShuttingDownConnection;
|
|
}
|
|
|
|
void MyH323Connection::SetCapabilities(int cap, int dtmf_mode, void *_prefs, int pref_codec)
|
|
{
|
|
PINDEX lastcap = -1; /* last common capability index */
|
|
int alreadysent = 0;
|
|
int codec;
|
|
int x, y;
|
|
char caps_str[1024];
|
|
struct ast_codec_pref *prefs = (struct ast_codec_pref *)_prefs;
|
|
struct ast_format_list format;
|
|
int frames_per_packet;
|
|
int max_frames_per_packet;
|
|
|
|
localCapabilities.RemoveAll();
|
|
|
|
if (h323debug) {
|
|
cout << "Setting capabilities to " << ast_getformatname_multiple(caps_str, sizeof(caps_str), cap) << endl;
|
|
ast_codec_pref_string(prefs, caps_str, sizeof(caps_str));
|
|
cout << "Capabilities in preference order is " << caps_str << endl;
|
|
}
|
|
/* Add audio codecs in preference order first, then
|
|
audio codecs without preference as allowed by mask */
|
|
for (y = 0, x = -1; x < 32 + 32; ++x) {
|
|
if (x < 0)
|
|
codec = pref_codec;
|
|
else if (y || (!(codec = ast_codec_pref_index(prefs, x)))) {
|
|
if (!y)
|
|
y = 1;
|
|
else if (y == AST_FORMAT_MAX_AUDIO)
|
|
break;
|
|
else
|
|
y <<= 1;
|
|
codec = y;
|
|
}
|
|
if (!(cap & codec) || (alreadysent & codec) || !(codec & AST_FORMAT_AUDIO_MASK))
|
|
continue;
|
|
alreadysent |= codec;
|
|
format = ast_codec_pref_getsize(prefs, codec);
|
|
frames_per_packet = (format.inc_ms ? format.cur_ms / format.inc_ms : format.cur_ms);
|
|
max_frames_per_packet = (format.inc_ms ? format.max_ms / format.inc_ms : 0);
|
|
switch(codec) {
|
|
#if 0
|
|
case 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*/
|
|
|
|
lastcap = localCapabilities.SetCapability(0, 0, new SpeexNarrow2AudioCapability());
|
|
lastcap = localCapabilities.SetCapability(0, 0, new SpeexNarrow3AudioCapability());
|
|
lastcap = localCapabilities.SetCapability(0, 0, new SpeexNarrow4AudioCapability());
|
|
lastcap = localCapabilities.SetCapability(0, 0, new SpeexNarrow5AudioCapability());
|
|
lastcap = localCapabilities.SetCapability(0, 0, new SpeexNarrow6AudioCapability());
|
|
break;
|
|
#endif
|
|
case AST_FORMAT_G729A:
|
|
AST_G729ACapability *g729aCap;
|
|
AST_G729Capability *g729Cap;
|
|
lastcap = localCapabilities.SetCapability(0, 0, g729aCap = new AST_G729ACapability(frames_per_packet));
|
|
lastcap = localCapabilities.SetCapability(0, 0, g729Cap = new AST_G729Capability(frames_per_packet));
|
|
if (max_frames_per_packet) {
|
|
g729aCap->SetTxFramesInPacket(max_frames_per_packet);
|
|
g729Cap->SetTxFramesInPacket(max_frames_per_packet);
|
|
}
|
|
break;
|
|
case AST_FORMAT_G723_1:
|
|
AST_G7231Capability *g7231Cap;
|
|
lastcap = localCapabilities.SetCapability(0, 0, g7231Cap = new AST_G7231Capability(frames_per_packet, TRUE));
|
|
if (max_frames_per_packet)
|
|
g7231Cap->SetTxFramesInPacket(max_frames_per_packet);
|
|
lastcap = localCapabilities.SetCapability(0, 0, g7231Cap = new AST_G7231Capability(frames_per_packet, FALSE));
|
|
if (max_frames_per_packet)
|
|
g7231Cap->SetTxFramesInPacket(max_frames_per_packet);
|
|
break;
|
|
case AST_FORMAT_GSM:
|
|
AST_GSM0610Capability *gsmCap;
|
|
lastcap = localCapabilities.SetCapability(0, 0, gsmCap = new AST_GSM0610Capability(frames_per_packet));
|
|
if (max_frames_per_packet)
|
|
gsmCap->SetTxFramesInPacket(max_frames_per_packet);
|
|
break;
|
|
case AST_FORMAT_ULAW:
|
|
AST_G711Capability *g711uCap;
|
|
lastcap = localCapabilities.SetCapability(0, 0, g711uCap = new AST_G711Capability(format.cur_ms, H323_G711Capability::muLaw));
|
|
if (format.max_ms)
|
|
g711uCap->SetTxFramesInPacket(format.max_ms);
|
|
break;
|
|
case AST_FORMAT_ALAW:
|
|
AST_G711Capability *g711aCap;
|
|
lastcap = localCapabilities.SetCapability(0, 0, g711aCap = new AST_G711Capability(format.cur_ms, H323_G711Capability::ALaw));
|
|
if (format.max_ms)
|
|
g711aCap->SetTxFramesInPacket(format.max_ms);
|
|
break;
|
|
default:
|
|
alreadysent &= ~codec;
|
|
break;
|
|
}
|
|
}
|
|
|
|
lastcap++;
|
|
lastcap = localCapabilities.SetCapability(0, lastcap, new H323_UserInputCapability(H323_UserInputCapability::HookFlashH245));
|
|
|
|
lastcap++;
|
|
dtmfMode = dtmf_mode;
|
|
if (dtmf_mode == H323_DTMF_INBAND) {
|
|
localCapabilities.SetCapability(0, lastcap, new H323_UserInputCapability(H323_UserInputCapability::BasicString));
|
|
sendUserInputMode = SendUserInputAsString;
|
|
} else {
|
|
lastcap = localCapabilities.SetCapability(0, lastcap, new H323_UserInputCapability(H323_UserInputCapability::SignalToneRFC2833));
|
|
/* Cisco sends DTMF only through h245-alphanumeric or h245-signal, no support for RFC2833 */
|
|
lastcap = localCapabilities.SetCapability(0, lastcap, new H323_UserInputCapability(H323_UserInputCapability::SignalToneH245));
|
|
sendUserInputMode = SendUserInputAsTone; /* RFC2833 transmission handled at Asterisk level */
|
|
}
|
|
|
|
if (h323debug) {
|
|
cout << "Allowed Codecs:\n\t" << setprecision(2) << localCapabilities << endl;
|
|
}
|
|
}
|
|
|
|
BOOL MyH323Connection::StartControlChannel(const H225_TransportAddress & h245Address)
|
|
{
|
|
// Check that it is an IP address, all we support at the moment
|
|
if (h245Address.GetTag() != H225_TransportAddress::e_ipAddress
|
|
#if P_HAS_IPV6
|
|
&& h245Address.GetTag() != H225_TransportAddress::e_ip6Address
|
|
#endif
|
|
) {
|
|
PTRACE(1, "H225\tConnect of H245 failed: Unsupported transport");
|
|
return FALSE;
|
|
}
|
|
|
|
// Already have the H245 channel up.
|
|
if (controlChannel != NULL)
|
|
return TRUE;
|
|
|
|
PIPSocket::Address addr;
|
|
WORD port;
|
|
GetSignallingChannel()->GetLocalAddress().GetIpAndPort(addr, port);
|
|
if (addr) {
|
|
if (h323debug)
|
|
cout << "Using " << addr << " for outbound H.245 transport" << endl;
|
|
controlChannel = new MyH323TransportTCP(endpoint, addr);
|
|
} else
|
|
controlChannel = new H323TransportTCP(endpoint);
|
|
if (!controlChannel->SetRemoteAddress(h245Address)) {
|
|
PTRACE(1, "H225\tCould not extract H245 address");
|
|
delete controlChannel;
|
|
controlChannel = NULL;
|
|
return FALSE;
|
|
}
|
|
if (!controlChannel->Connect()) {
|
|
PTRACE(1, "H225\tConnect of H245 failed: " << controlChannel->GetErrorText());
|
|
delete controlChannel;
|
|
controlChannel = NULL;
|
|
return FALSE;
|
|
}
|
|
|
|
controlChannel->StartControlChannel(*this);
|
|
return TRUE;
|
|
}
|
|
|
|
/* MyH323_ExternalRTPChannel */
|
|
MyH323_ExternalRTPChannel::MyH323_ExternalRTPChannel(MyH323Connection & connection,
|
|
const H323Capability & capability,
|
|
Directions direction,
|
|
unsigned id)
|
|
: H323_ExternalRTPChannel::H323_ExternalRTPChannel(connection, capability, direction, id)
|
|
{
|
|
struct rtp_info *info;
|
|
|
|
/* Determine the Local (A side) IP Address and port */
|
|
info = on_external_rtp_create(connection.GetCallReference(), (const char *)connection.GetCallToken());
|
|
if (!info) {
|
|
cout << "\tERROR: on_external_rtp_create failure" << endl;
|
|
return;
|
|
} else {
|
|
localIpAddr = info->addr;
|
|
localPort = info->port;
|
|
/* tell the H.323 stack */
|
|
SetExternalAddress(H323TransportAddress(localIpAddr, localPort), H323TransportAddress(localIpAddr, localPort + 1));
|
|
/* clean up allocated memory */
|
|
free(info);
|
|
}
|
|
|
|
/* Get the payload code */
|
|
OpalMediaFormat format(capability.GetFormatName(), FALSE);
|
|
payloadCode = format.GetPayloadType();
|
|
}
|
|
|
|
MyH323_ExternalRTPChannel::~MyH323_ExternalRTPChannel()
|
|
{
|
|
if (h323debug) {
|
|
cout << "\tExternalRTPChannel Destroyed" << endl;
|
|
}
|
|
}
|
|
|
|
BOOL MyH323_ExternalRTPChannel::Start(void)
|
|
{
|
|
/* Call ancestor first */
|
|
if (!H323_ExternalRTPChannel::Start()) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (h323debug) {
|
|
cout << "\t\tExternal RTP Session Starting" << endl;
|
|
cout << "\t\tRTP channel id " << sessionID << " parameters:" << endl;
|
|
}
|
|
|
|
/* Collect the remote information */
|
|
H323_ExternalRTPChannel::GetRemoteAddress(remoteIpAddr, remotePort);
|
|
|
|
if (h323debug) {
|
|
cout << "\t\t-- remoteIpAddress: " << remoteIpAddr << endl;
|
|
cout << "\t\t-- remotePort: " << remotePort << endl;
|
|
cout << "\t\t-- ExternalIpAddress: " << localIpAddr << endl;
|
|
cout << "\t\t-- ExternalPort: " << localPort << endl;
|
|
}
|
|
/* Notify Asterisk of remote RTP information */
|
|
on_start_rtp_channel(connection.GetCallReference(), (const char *)remoteIpAddr.AsString(), remotePort,
|
|
(const char *)connection.GetCallToken(), (int)payloadCode);
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL MyH323_ExternalRTPChannel::OnReceivedAckPDU(const H245_H2250LogicalChannelAckParameters & param)
|
|
{
|
|
if (h323debug) {
|
|
cout << " MyH323_ExternalRTPChannel::OnReceivedAckPDU" << endl;
|
|
}
|
|
|
|
if (H323_ExternalRTPChannel::OnReceivedAckPDU(param)) {
|
|
GetRemoteAddress(remoteIpAddr, remotePort);
|
|
if (h323debug) {
|
|
cout << " -- remoteIpAddress: " << remoteIpAddr << endl;
|
|
cout << " -- remotePort: " << remotePort << endl;
|
|
}
|
|
on_start_rtp_channel(connection.GetCallReference(), (const char *)remoteIpAddr.AsString(),
|
|
remotePort, (const char *)connection.GetCallToken(), (int)payloadCode);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/** IMPLEMENTATION OF C FUNCTIONS */
|
|
|
|
/**
|
|
* The extern "C" directive takes care for
|
|
* the ANSI-C representation of linkable symbols
|
|
*/
|
|
|
|
extern "C" {
|
|
|
|
int h323_end_point_exist(void)
|
|
{
|
|
if (!endPoint) {
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void h323_end_point_create(void)
|
|
{
|
|
channelsOpen = 0;
|
|
logstream = new PAsteriskLog();
|
|
localProcess = new MyProcess();
|
|
localProcess->Main();
|
|
}
|
|
|
|
void h323_gk_urq(void)
|
|
{
|
|
if (!h323_end_point_exist()) {
|
|
cout << " ERROR: [h323_gk_urq] No Endpoint, this is bad" << endl;
|
|
return;
|
|
}
|
|
endPoint->RemoveGatekeeper();
|
|
}
|
|
|
|
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_rtp_cb rtpfunc,
|
|
start_rtp_cb lfunc,
|
|
clear_con_cb clfunc,
|
|
chan_ringing_cb rfunc,
|
|
con_established_cb efunc,
|
|
receive_digit_cb dfunc,
|
|
answer_call_cb acfunc,
|
|
progress_cb pgfunc,
|
|
rfc2833_cb dtmffunc,
|
|
hangup_cb hangupfunc,
|
|
setcapabilities_cb capabilityfunc,
|
|
setpeercapabilities_cb peercapabilityfunc)
|
|
{
|
|
on_incoming_call = ifunc;
|
|
on_outgoing_call = sfunc;
|
|
on_external_rtp_create = rtpfunc;
|
|
on_start_rtp_channel = lfunc;
|
|
on_connection_cleared = clfunc;
|
|
on_chan_ringing = rfunc;
|
|
on_connection_established = efunc;
|
|
on_receive_digit = dfunc;
|
|
on_answer_call = acfunc;
|
|
on_progress = pgfunc;
|
|
on_set_rfc2833_payload = dtmffunc;
|
|
on_hangup = hangupfunc;
|
|
on_setcapabilities = capabilityfunc;
|
|
on_setpeercapabilities = peercapabilityfunc;
|
|
}
|
|
|
|
/**
|
|
* Add capability to the capability table of the end point.
|
|
*/
|
|
int h323_set_capabilities(const char *token, int cap, int dtmf_mode, struct ast_codec_pref *prefs, int pref_codec)
|
|
{
|
|
MyH323Connection *conn;
|
|
|
|
if (!h323_end_point_exist()) {
|
|
cout << " ERROR: [h323_set_capablities] No Endpoint, this is bad" << endl;
|
|
return 1;
|
|
}
|
|
if (!token || !*token) {
|
|
cout << " ERROR: [h323_set_capabilities] Invalid call token specified." << endl;
|
|
return 1;
|
|
}
|
|
|
|
PString myToken(token);
|
|
conn = (MyH323Connection *)endPoint->FindConnectionWithLock(myToken);
|
|
if (!conn) {
|
|
cout << " ERROR: [h323_set_capabilities] Unable to find connection " << token << endl;
|
|
return 1;
|
|
}
|
|
conn->SetCapabilities((/*conn->bridging ? conn->redir_capabilities :*/ cap), dtmf_mode, prefs, pref_codec);
|
|
conn->Unlock();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** Start the H.323 listener */
|
|
int h323_start_listener(int listenPort, struct sockaddr_in bindaddr)
|
|
{
|
|
|
|
if (!h323_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;
|
|
}
|
|
/** H.323 listener */
|
|
H323ListenerTCP *tcpListener;
|
|
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" << endl;
|
|
return 0;
|
|
};
|
|
|
|
int h323_set_alias(struct oh323_alias *alias)
|
|
{
|
|
char *p;
|
|
char *num;
|
|
PString h323id(alias->name);
|
|
PString e164(alias->e164);
|
|
char *prefix;
|
|
|
|
if (!h323_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 = prefix = strdup(alias->prefix);
|
|
while((num = strsep(&p, ",")) != (char *)NULL) {
|
|
cout << "== Adding Prefix \"" << num << "\" to endpoint" << endl;
|
|
endPoint->SupportedPrefixes += PString(num);
|
|
endPoint->SetGateway();
|
|
}
|
|
if (prefix)
|
|
free(prefix);
|
|
}
|
|
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);
|
|
}
|
|
|
|
void h323_show_tokens(void)
|
|
{
|
|
cout << "Current call tokens: " << setprecision(2) << endPoint->GetAllConnections() << endl;
|
|
}
|
|
|
|
/** 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);
|
|
H323TransportUDP *rasChannel;
|
|
|
|
if (!h323_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 MyH323TransportUDP(*endPoint))) {
|
|
cout << "== Using " << (endPoint->GetGatekeeper())->GetName() << " as our Gatekeeper." << endl;
|
|
} else {
|
|
cout << "Warning: Could not find a gatekeeper." << endl;
|
|
return 1;
|
|
}
|
|
} else {
|
|
rasChannel = new MyH323TransportUDP(*endPoint);
|
|
|
|
if (!rasChannel) {
|
|
cout << "Error: 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? */
|
|
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 (!h323_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 *dest, call_details_t *cd, call_options_t *call_options)
|
|
{
|
|
int res;
|
|
PString token;
|
|
PString host(dest);
|
|
|
|
if (!h323_end_point_exist()) {
|
|
return 1;
|
|
}
|
|
|
|
res = endPoint->MyMakeCall(host, token, &cd->call_reference, call_options);
|
|
memcpy((char *)(cd->call_token), (const unsigned char *)token, token.GetLength());
|
|
return res;
|
|
};
|
|
|
|
int h323_clear_call(const char *call_token, int cause)
|
|
{
|
|
H225_ReleaseCompleteReason dummy;
|
|
H323Connection::CallEndReason r = H323Connection::EndedByLocalUser;
|
|
MyH323Connection *connection;
|
|
const PString currentToken(call_token);
|
|
|
|
if (!h323_end_point_exist()) {
|
|
return 1;
|
|
}
|
|
|
|
if (cause) {
|
|
r = H323TranslateToCallEndReason((Q931::CauseValues)(cause), dummy);
|
|
}
|
|
|
|
connection = (MyH323Connection *)endPoint->FindConnectionWithLock(currentToken);
|
|
if (connection) {
|
|
connection->SetCause(cause);
|
|
connection->SetCallEndReason(r);
|
|
connection->Unlock();
|
|
}
|
|
endPoint->ClearCall(currentToken, r);
|
|
return 0;
|
|
};
|
|
|
|
/* Send Alerting PDU to H.323 caller */
|
|
int h323_send_alerting(const char *token)
|
|
{
|
|
const PString currentToken(token);
|
|
H323Connection * connection;
|
|
|
|
if (h323debug) {
|
|
cout << "\tSending alerting" << endl;
|
|
}
|
|
connection = endPoint->FindConnectionWithLock(currentToken);
|
|
if (!connection) {
|
|
cout << "No connection found for " << token << endl;
|
|
return -1;
|
|
}
|
|
connection->AnsweringCall(H323Connection::AnswerCallPending);
|
|
connection->Unlock();
|
|
return 0;
|
|
}
|
|
|
|
/* Send Progress PDU to H.323 caller */
|
|
int h323_send_progress(const char *token)
|
|
{
|
|
const PString currentToken(token);
|
|
H323Connection * connection;
|
|
|
|
connection = endPoint->FindConnectionWithLock(currentToken);
|
|
if (!connection) {
|
|
cout << "No connection found for " << token << endl;
|
|
return -1;
|
|
}
|
|
connection->AnsweringCall(H323Connection::AnswerCallDeferredWithMedia);
|
|
connection->Unlock();
|
|
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) {
|
|
cout << "No connection found for " << token << endl;
|
|
return -1;
|
|
}
|
|
if (!busy) {
|
|
if (h323debug) {
|
|
cout << "\tAnswering call " << token << endl;
|
|
}
|
|
connection->AnsweringCall(H323Connection::AnswerCallNow);
|
|
} else {
|
|
if (h323debug) {
|
|
cout << "\tdenying call " << token << endl;
|
|
}
|
|
connection->AnsweringCall(H323Connection::AnswerCallDenied);
|
|
}
|
|
connection->Unlock();
|
|
return 0;
|
|
}
|
|
|
|
int h323_soft_hangup(const char *data)
|
|
{
|
|
PString token(data);
|
|
BOOL result;
|
|
cout << "Soft hangup" << endl;
|
|
result = endPoint->ClearCall(token);
|
|
return result;
|
|
}
|
|
|
|
/* alas, this doesn't work :( */
|
|
void h323_native_bridge(const char *token, const char *them, char *capability)
|
|
{
|
|
H323Channel *channel;
|
|
MyH323Connection *connection = (MyH323Connection *)endPoint->FindConnectionWithLock(token);
|
|
|
|
if (!connection) {
|
|
cout << "ERROR: No connection found, this is bad" << endl;
|
|
return;
|
|
}
|
|
|
|
cout << "Native Bridge: them [" << them << "]" << endl;
|
|
|
|
channel = connection->FindChannel(connection->sessionId, TRUE);
|
|
connection->bridging = TRUE;
|
|
connection->CloseLogicalChannelNumber(channel->GetNumber());
|
|
|
|
connection->Unlock();
|
|
return;
|
|
|
|
}
|
|
|
|
#undef cout
|
|
#undef endl
|
|
void h323_end_process(void)
|
|
{
|
|
if (endPoint) {
|
|
endPoint->ClearAllCalls();
|
|
endPoint->RemoveListener(NULL);
|
|
delete endPoint;
|
|
endPoint = NULL;
|
|
}
|
|
if (localProcess) {
|
|
delete localProcess;
|
|
localProcess = NULL;
|
|
close(_timerChangePipe[0]);
|
|
close(_timerChangePipe[1]);
|
|
}
|
|
if (logstream) {
|
|
PTrace::SetLevel(0);
|
|
PTrace::SetStream(&cout);
|
|
delete logstream;
|
|
logstream = NULL;
|
|
}
|
|
}
|
|
|
|
} /* extern "C" */
|
|
|