diff options
Diffstat (limited to '1.4.23-rc4/channels/h323/ast_h323.cxx')
| -rw-r--r-- | 1.4.23-rc4/channels/h323/ast_h323.cxx | 2487 |
1 files changed, 0 insertions, 2487 deletions
diff --git a/1.4.23-rc4/channels/h323/ast_h323.cxx b/1.4.23-rc4/channels/h323/ast_h323.cxx deleted file mode 100644 index 32b674dec..000000000 --- a/1.4.23-rc4/channels/h323/ast_h323.cxx +++ /dev/null @@ -1,2487 +0,0 @@ -#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 H323_H450 -#include "h4501.h" -#include "h4504.h" -#include "h45011.h" -#include "h450pdu.h" -#endif - -#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" - -#include <ptbuildopts.h> - -#if PWLIB_MAJOR * 10000 + PWLIB_MINOR * 100 + PWLIB_BUILD >= 1 * 10000 + 12 * 100 + 0 -#define SKIP_PWLIB_PIPE_BUG_WORKAROUND 1 -#endif - -/* 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; - -#ifndef SKIP_PWLIB_PIPE_BUG_WORKAROUND -static int _timerChangePipe[2]; -#endif - -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 Networks", - "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() -{ -#ifndef SKIP_PWLIB_PIPE_BUG_WORKAROUND - _timerChangePipe[0] = timerChangePipe[0]; - _timerChangePipe[1] = timerChangePipe[1]; -#endif -} - -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(); - - /* Reset call setup timeout to some more reasonable value than 1 minute */ - signallingChannelCallTimeout = PTimeInterval(0, 0, 10); /* 10 minutes */ -} - -/** 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; -#ifdef PTRACING - cout << "\t-- DTMF Payload is " << connection->dtmfCodec << endl; -#endif - } - 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; - transfer_capability = -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; -} - -BOOL MyH323Connection::MySendProgress() -{ - /* The code taken from H323Connection::AnsweringCall() but ALWAYS send - PROGRESS message, including slow start operations */ - H323SignalPDU progressPDU; - H225_Progress_UUIE &prog = progressPDU.BuildProgress(*this); - - if (!mediaWaitForConnect) { - if (SendFastStartAcknowledge(prog.m_fastStart)) - prog.IncludeOptionalField(H225_Progress_UUIE::e_fastStart); - else { - if (connectionState == ShuttingDownConnection) - return FALSE; - - /* Do early H.245 start */ - earlyStart = TRUE; - if (!h245Tunneling) { - if (!H323Connection::StartControlChannel()) - return FALSE; - prog.IncludeOptionalField(H225_Progress_UUIE::e_h245Address); - controlChannel->SetUpTransportPDU(prog.m_h245Address, TRUE); - } - } - } - progressPDU.GetQ931().SetProgressIndicator(Q931::ProgressInbandInformationAvailable); - -#ifdef TUNNELLING - EmbedTunneledInfo(progressPDU); -#endif - HandleTunnelPDU(&progressPDU); - WriteSignalPDU(progressPDU); - - return TRUE; -} - -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 { - sourceE164 = PString(opts->cid_num); - SetLocalPartyName(PString(opts->cid_name)); - SetDisplayName(PString(opts->cid_name)); - if (opts->redirect_reason >= 0) { - rdnis = PString(opts->cid_rdnis); - redirect_reason = opts->redirect_reason; - } - cid_presentation = opts->presentation; - cid_ton = opts->type_of_number; - if (opts->transfer_capability >= 0) { - transfer_capability = opts->transfer_capability; - } - } - 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; - unsigned plan, type, screening, presentation; - Q931::InformationTransferCapability capability; - unsigned transferRate, codingStandard, userInfoLayer1; - - /* Fetch presentation and type information about calling party's number */ - if (setupPDU.GetQ931().GetCallingPartyNumber(sourceName, &plan, &type, &presentation, &screening, 0, 0)) { - /* Construct fields back */ - cd->type_of_number = (type << 4) | plan; - cd->presentation = (presentation << 5) | screening; - } else if (cd->call_source_e164[0]) { - cd->type_of_number = 0; /* UNKNOWN */ - cd->presentation = 0x03; /* ALLOWED NETWORK NUMBER - Default */ - if (setupPDU.GetQ931().HasIE(Q931::UserUserIE)) { - const H225_Setup_UUIE &setup_uuie = setupPDU.m_h323_uu_pdu.m_h323_message_body; - if (setup_uuie.HasOptionalField(H225_Setup_UUIE::e_presentationIndicator)) - cd->presentation = (cd->presentation & 0x9f) | (((unsigned int)setup_uuie.m_presentationIndicator.GetTag()) << 5); - if (setup_uuie.HasOptionalField(H225_Setup_UUIE::e_screeningIndicator)) - cd->presentation = (cd->presentation & 0xe0) | (((unsigned int)setup_uuie.m_screeningIndicator.GetValue()) & 0x1f); - } - } else { - cd->type_of_number = 0; /* UNKNOWN */ - cd->presentation = 0x43; /* NUMBER NOT AVAILABLE */ - } - - 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; - - /* Fetch Q.931's transfer capability */ - if (((Q931 &)setupPDU.GetQ931()).GetBearerCapabilities(capability, transferRate, &codingStandard, &userInfoLayer1)) - cd->transfer_capability = ((unsigned int)capability & 0x1f) | (codingStandard << 5); - else - cd->transfer_capability = 0x00; /* ITU coding of Speech */ - - /* Don't show local username as called party name */ - SetDisplayName(cd->call_dest_e164); - } - - /* 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 struct { - Q931::InformationElementCodes ie; - BOOL dontDelete; - } codes[] = { - { Q931::RedirectingNumberIE, }, - { Q931::FacilityIE, }, -// { Q931::CallingPartyNumberIE, TRUE }, - }; - - 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].ie)) { - tmpQ931.SetIE(codes[i].ie, q931.GetIE(codes[i].ie)); - if (!codes[i].dontDelete) - q931.RemoveIE(codes[i].ie); - if (codes[i].ie != 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) && - (((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); - } - - if (transfer_capability) - setupPDU.GetQ931().SetBearerCapabilities((Q931::InformationTransferCapability)(transfer_capability & 0x1f), 1, ((transfer_capability >> 5) & 3)); - - SetCallDetails(&cd, setupPDU, FALSE); - - int res = on_outgoing_call(&cd); - if (!res) { - if (h323debug) { - cout << "\t-- Call Failed" << endl; - } - return FALSE; - } - - /* OpenH323 will build calling party information with default - type and presentation information, so build it to be recorded - by embedding routines */ - setupPDU.GetQ931().SetCallingPartyNumber(sourceE164, (cid_ton >> 4) & 0x07, - cid_ton & 0x0f, (cid_presentation >> 5) & 0x03, cid_presentation & 0x1f); - setupPDU.GetQ931().SetDisplayName(GetDisplayName()); - -#ifdef TUNNELLING - EmbedTunneledInfo(setupPDU); -#endif - - return H323Connection::OnSendSignalSetup(setupPDU); -} - -static BOOL BuildFastStartList(const H323Channel & channel, - H225_ArrayOf_PASN_OctetString & array, - H323Channel::Directions reverseDirection) -{ - H245_OpenLogicalChannel open; - const H323Capability & capability = channel.GetCapability(); - - if (channel.GetDirection() != reverseDirection) { - if (!capability.OnSendingPDU(open.m_forwardLogicalChannelParameters.m_dataType)) - return FALSE; - } - else { - if (!capability.OnSendingPDU(open.m_reverseLogicalChannelParameters.m_dataType)) - return FALSE; - - open.m_forwardLogicalChannelParameters.m_multiplexParameters.SetTag( - H245_OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters::e_none); - open.m_forwardLogicalChannelParameters.m_dataType.SetTag(H245_DataType::e_nullData); - open.IncludeOptionalField(H245_OpenLogicalChannel::e_reverseLogicalChannelParameters); - } - - if (!channel.OnSendingPDU(open)) - return FALSE; - - PTRACE(4, "H225\tBuild fastStart:\n " << setprecision(2) << open); - PINDEX last = array.GetSize(); - array.SetSize(last+1); - array[last].EncodeSubType(open); - - PTRACE(3, "H225\tBuilt fastStart for " << capability); - return TRUE; -} - -H323Connection::CallEndReason MyH323Connection::SendSignalSetup(const PString & alias, - const H323TransportAddress & address) -{ - // Start the call, first state is asking gatekeeper - connectionState = AwaitingGatekeeperAdmission; - - // Indicate the direction of call. - if (alias.IsEmpty()) - remotePartyName = remotePartyAddress = address; - else { - remotePartyName = alias; - remotePartyAddress = alias + '@' + address; - } - - // Start building the setup PDU to get various ID's - H323SignalPDU setupPDU; - H225_Setup_UUIE & setup = setupPDU.BuildSetup(*this, address); - -#ifdef H323_H450 - h450dispatcher->AttachToSetup(setupPDU); -#endif - - // Save the identifiers generated by BuildSetup - setupPDU.GetQ931().GetCalledPartyNumber(remotePartyNumber); - - H323TransportAddress gatekeeperRoute = address; - - // Check for gatekeeper and do admission check if have one - H323Gatekeeper * gatekeeper = endpoint.GetGatekeeper(); - H225_ArrayOf_AliasAddress newAliasAddresses; - if (gatekeeper != NULL) { - H323Gatekeeper::AdmissionResponse response; - response.transportAddress = &gatekeeperRoute; - response.aliasAddresses = &newAliasAddresses; - if (!gkAccessTokenOID) - response.accessTokenData = &gkAccessTokenData; - while (!gatekeeper->AdmissionRequest(*this, response, alias.IsEmpty())) { - PTRACE(1, "H225\tGatekeeper refused admission: " - << (response.rejectReason == UINT_MAX - ? PString("Transport error") - : H225_AdmissionRejectReason(response.rejectReason).GetTagName())); -#ifdef H323_H450 - h4502handler->onReceivedAdmissionReject(H4501_GeneralErrorList::e_notAvailable); -#endif - - switch (response.rejectReason) { - case H225_AdmissionRejectReason::e_calledPartyNotRegistered: - return EndedByNoUser; - case H225_AdmissionRejectReason::e_requestDenied: - return EndedByNoBandwidth; - case H225_AdmissionRejectReason::e_invalidPermission: - case H225_AdmissionRejectReason::e_securityDenial: - return EndedBySecurityDenial; - case H225_AdmissionRejectReason::e_resourceUnavailable: - return EndedByRemoteBusy; - case H225_AdmissionRejectReason::e_incompleteAddress: - if (OnInsufficientDigits()) - break; - // Then default case - default: - return EndedByGatekeeper; - } - - PString lastRemotePartyName = remotePartyName; - while (lastRemotePartyName == remotePartyName) { - Unlock(); // Release the mutex as can deadlock trying to clear call during connect. - digitsWaitFlag.Wait(); - if (!Lock()) // Lock while checking for shutting down. - return EndedByCallerAbort; - } - } - mustSendDRQ = TRUE; - if (response.gatekeeperRouted) { - setup.IncludeOptionalField(H225_Setup_UUIE::e_endpointIdentifier); - setup.m_endpointIdentifier = gatekeeper->GetEndpointIdentifier(); - gatekeeperRouted = TRUE; - } - } - -#ifdef H323_TRANSNEXUS_OSP - // check for OSP server (if not using GK) - if (gatekeeper == NULL) { - OpalOSP::Provider * ospProvider = endpoint.GetOSPProvider(); - if (ospProvider != NULL) { - OpalOSP::Transaction * transaction = new OpalOSP::Transaction(); - if (transaction->Open(*ospProvider) != 0) { - PTRACE(1, "H225\tCannot create OSP transaction"); - return EndedByOSPRefusal; - } - - OpalOSP::Transaction::DestinationInfo destInfo; - if (!AuthoriseOSPTransaction(*transaction, destInfo)) { - delete transaction; - return EndedByOSPRefusal; - } - - // save the transaction for use by the call - ospTransaction = transaction; - - // retreive the call information - gatekeeperRoute = destInfo.destinationAddress; - newAliasAddresses.Append(new H225_AliasAddress(destInfo.calledNumber)); - - // insert the token - setup.IncludeOptionalField(H225_Setup_UUIE::e_tokens); - destInfo.InsertToken(setup.m_tokens); - } - } -#endif - - // Update the field e_destinationAddress in the SETUP PDU to reflect the new - // alias received in the ACF (m_destinationInfo). - if (newAliasAddresses.GetSize() > 0) { - setup.IncludeOptionalField(H225_Setup_UUIE::e_destinationAddress); - setup.m_destinationAddress = newAliasAddresses; - - // Update the Q.931 Information Element (if is an E.164 address) - PString e164 = H323GetAliasAddressE164(newAliasAddresses); - if (!e164) - remotePartyNumber = e164; - } - - if (addAccessTokenToSetup && !gkAccessTokenOID && !gkAccessTokenData.IsEmpty()) { - PString oid1, oid2; - PINDEX comma = gkAccessTokenOID.Find(','); - if (comma == P_MAX_INDEX) - oid1 = oid2 = gkAccessTokenOID; - else { - oid1 = gkAccessTokenOID.Left(comma); - oid2 = gkAccessTokenOID.Mid(comma+1); - } - setup.IncludeOptionalField(H225_Setup_UUIE::e_tokens); - PINDEX last = setup.m_tokens.GetSize(); - setup.m_tokens.SetSize(last+1); - setup.m_tokens[last].m_tokenOID = oid1; - setup.m_tokens[last].IncludeOptionalField(H235_ClearToken::e_nonStandard); - setup.m_tokens[last].m_nonStandard.m_nonStandardIdentifier = oid2; - setup.m_tokens[last].m_nonStandard.m_data = gkAccessTokenData; - } - - if (!signallingChannel->SetRemoteAddress(gatekeeperRoute)) { - PTRACE(1, "H225\tInvalid " - << (gatekeeperRoute != address ? "gatekeeper" : "user") - << " supplied address: \"" << gatekeeperRoute << '"'); - connectionState = AwaitingTransportConnect; - return EndedByConnectFail; - } - - // Do the transport connect - connectionState = AwaitingTransportConnect; - - // Release the mutex as can deadlock trying to clear call during connect. - Unlock(); - - signallingChannel->SetWriteTimeout(100); - - BOOL connectFailed = !signallingChannel->Connect(); - - // Lock while checking for shutting down. - if (!Lock()) - return EndedByCallerAbort; - - // See if transport connect failed, abort if so. - if (connectFailed) { - connectionState = NoConnectionActive; - switch (signallingChannel->GetErrorNumber()) { - case ENETUNREACH : - return EndedByUnreachable; - case ECONNREFUSED : - return EndedByNoEndPoint; - case ETIMEDOUT : - return EndedByHostOffline; - } - return EndedByConnectFail; - } - - PTRACE(3, "H225\tSending Setup PDU"); - connectionState = AwaitingSignalConnect; - - // Put in all the signalling addresses for link - setup.IncludeOptionalField(H225_Setup_UUIE::e_sourceCallSignalAddress); - signallingChannel->SetUpTransportPDU(setup.m_sourceCallSignalAddress, TRUE); - if (!setup.HasOptionalField(H225_Setup_UUIE::e_destCallSignalAddress)) { - setup.IncludeOptionalField(H225_Setup_UUIE::e_destCallSignalAddress); - signallingChannel->SetUpTransportPDU(setup.m_destCallSignalAddress, FALSE); - } - - // If a standard call do Fast Start (if required) - if (setup.m_conferenceGoal.GetTag() == H225_Setup_UUIE_conferenceGoal::e_create) { - - // Get the local capabilities before fast start is handled - OnSetLocalCapabilities(); - - // Ask the application what channels to open - PTRACE(3, "H225\tCheck for Fast start by local endpoint"); - fastStartChannels.RemoveAll(); - OnSelectLogicalChannels(); - - // If application called OpenLogicalChannel, put in the fastStart field - if (!fastStartChannels.IsEmpty()) { - PTRACE(3, "H225\tFast start begun by local endpoint"); - for (PINDEX i = 0; i < fastStartChannels.GetSize(); i++) - BuildFastStartList(fastStartChannels[i], setup.m_fastStart, H323Channel::IsReceiver); - if (setup.m_fastStart.GetSize() > 0) - setup.IncludeOptionalField(H225_Setup_UUIE::e_fastStart); - } - - // Search the capability set and see if we have video capability - for (PINDEX i = 0; i < localCapabilities.GetSize(); i++) { - switch (localCapabilities[i].GetMainType()) { - case H323Capability::e_Audio: - case H323Capability::e_UserInput: - break; - - default: // Is video or other data (eg T.120) - setupPDU.GetQ931().SetBearerCapabilities(Q931::TransferUnrestrictedDigital, 6); - i = localCapabilities.GetSize(); // Break out of the for loop - break; - } - } - } - - if (!OnSendSignalSetup(setupPDU)) - return EndedByNoAccept; - - // Do this again (was done when PDU was constructed) in case - // OnSendSignalSetup() changed something. -// setupPDU.SetQ931Fields(*this, TRUE); - setupPDU.GetQ931().GetCalledPartyNumber(remotePartyNumber); - - fastStartState = FastStartDisabled; - BOOL set_lastPDUWasH245inSETUP = FALSE; - - if (h245Tunneling && doH245inSETUP) { - h245TunnelTxPDU = &setupPDU; - - // Try and start the master/slave and capability exchange through the tunnel - // Note: this used to be disallowed but is now allowed as of H323v4 - BOOL ok = StartControlNegotiations(); - - h245TunnelTxPDU = NULL; - - if (!ok) - return EndedByTransportFail; - - if (setup.m_fastStart.GetSize() > 0) { - // Now if fast start as well need to put this in setup specific field - // and not the generic H.245 tunneling field - setup.IncludeOptionalField(H225_Setup_UUIE::e_parallelH245Control); - setup.m_parallelH245Control = setupPDU.m_h323_uu_pdu.m_h245Control; - setupPDU.m_h323_uu_pdu.RemoveOptionalField(H225_H323_UU_PDU::e_h245Control); - set_lastPDUWasH245inSETUP = TRUE; - } - } - - // Send the initial PDU - setupTime = PTime(); - if (!WriteSignalPDU(setupPDU)) - return EndedByTransportFail; - - // WriteSignalPDU always resets lastPDUWasH245inSETUP. - // So set it here if required - if (set_lastPDUWasH245inSETUP) - lastPDUWasH245inSETUP = TRUE; - - // Set timeout for remote party to answer the call - signallingChannel->SetReadTimeout(endpoint.GetSignallingChannelCallTimeout()); - - return NumCallEndReasons; -} - - -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); -#ifdef PTRACING - if (h323debug) { - cout << "\t-- Transmitting RFC2833 on payload " << - atec.m_dynamicRTPPayloadType << endl; - } -#endif - } - } - } -} - -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; -#ifdef PTRACING - if (h323debug) { - cout << "\t-- Inbound RFC2833 on payload " << pt << endl; - } -#endif - } - 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*/ ) -{ - /* Do not open tx channel when transmitter has been paused by empty TCS */ - if ((dir == H323Channel::IsTransmitter) && transmitterSidePaused) - return NULL; - - 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; - } -#if 1 - ((MyH323Connection *)connection)->MySendProgress(); -#else - connection->AnsweringCall(H323Connection::AnswerCallDeferredWithMedia); -#endif - 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; -#ifndef SKIP_PWLIB_PIPE_BUG_WORKAROUND - close(_timerChangePipe[0]); - close(_timerChangePipe[1]); -#endif - } - if (logstream) { - PTrace::SetLevel(0); - PTrace::SetStream(&cout); - delete logstream; - logstream = NULL; - } -} - -} /* extern "C" */ - |