H323Channel * MyH323Connection::CreateRealTimeLogicalChannel(const H323Capability & capability,
H323Channel::Directions dir,
unsigned sessionID,
const H245_H2250LogicalChannelParameters * /*param*/)
{
struct rtp_info *info;
WORD port;
/* Determine the Local (A side) IP Address and port */
info = on_create_connection(GetCallReference(), (const char *)GetCallToken());
if (!info) {
return NULL;
}
GetControlChannel().GetLocalAddress().GetIpAndPort(externalIpAddress, port);
externalPort = info->port;
sessionId = sessionID;
if (h323debug) {
cout << " =*= In CreateRealTimeLogicalChannel for call " << GetCallReference() << endl;
cout << " -- externalIpAddress: " << externalIpAddress << endl;
cout << " -- externalPort: " << externalPort << endl;
cout << " -- SessionID: " << sessionID << endl;
cout << " -- Direction: " << dir << endl;
}
return new MyH323_ExternalRTPChannel(*this, capability, dir, sessionID, externalIpAddress, externalPort);
}
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;
}
H323Connection::AnswerCallResponse MyH323Connection::OnAnswerCall(const PString & caller,
const H323SignalPDU & /*setupPDU*/,
H323SignalPDU & /*connectPDU*/)
{
if (h323debug)
cout << "\t=-= In OnAnswerCall for call " << GetCallReference() << endl;
if (!on_answer_call(GetCallReference(), (const char *)GetCallToken()))
return H323Connection::AnswerCallDenied;
/* The call will be answered later with "AnsweringCall()" function.
*/
return H323Connection::AnswerCallDeferred;
}
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;
}
void MyH323Connection::SendUserInputTone(char tone, unsigned duration)
{
if (h323debug) {
cout << "\t-- Sending user input tone (" << tone << ") to remote" << endl;
}
on_send_digit(GetCallReference(), tone, (const char *)GetCallToken());
H323Connection::SendUserInputTone(tone, duration);
}
void MyH323Connection::OnUserInputString(const PString &value)
{
if (mode != H323_DTMF_INBAND) {
if (h323debug) {
cout << "\t-- Received user input string (" << value << ") from remote." << endl;
}
on_send_digit(GetCallReference(), value[0], (const char *)GetCallToken());
}
}
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);
}
void MyH323Connection::OnUserInputTone(char tone, unsigned duration, unsigned logicalChannel, unsigned rtpTimestamp)
{
if (mode == H323_DTMF_INBAND) {
if (h323debug) {
cout << "\t-- Received user input tone (" << tone << ") from remote" << endl;
}
on_send_digit(GetCallReference(), tone, (const char *)GetCallToken());
}
H323Connection::OnUserInputTone(tone, duration, logicalChannel, rtpTimestamp);
}
BOOL MyH323Connection::OnAlerting(const H323SignalPDU & /*alertingPDU*/, const PString & username)
{
PIPSocket::Address remoteIpAddress;
WORD remotePort;
H323_ExternalRTPChannel * channel;
if (h323debug)
cout << "\t =-= In OnAlerting for call " << GetCallReference()
<< ": sessionId=" << sessionId << endl;
/* Connect RTP if logical channel has already been opened */
if (Lock()) {
if ( (channel = (H323_ExternalRTPChannel*) FindChannel(sessionId,TRUE)) ) {
channel->GetRemoteAddress(remoteIpAddress, remotePort);
if (h323debug) {
cout << "\t\t--- found logical channel. Connecting RTP" << endl;
cout << "\t\tRTP channel id " << sessionId << " parameters:" << endl;
cout << "\t\t-- remoteIpAddress: " << remoteIpAddress << endl;
cout << "\t\t-- remotePort: " << remotePort << endl;
cout << "\t\t-- ExternalIpAddress: " << externalIpAddress << endl;
cout << "\t\t-- ExternalPort: " << externalPort << endl;
}
on_start_logical_channel(GetCallReference(),(const char *)remoteIpAddress.AsString(), remotePort,
(const char *)GetCallToken() );
AST_RTP_Connected=TRUE;
} else
if (h323debug)
cout << "\t\t--- no logical channels" << endl;
if (h323debug) {
cout << " -- Ringing phone for \"" << username << "\"" << endl;
}
on_chan_ringing(GetCallReference(), (const char *)GetCallToken() );
Unlock();
return TRUE;
}
ast_log(LOG_ERROR,"chan_h323: OnAlerting: Could not obtain connection lock");
return FALSE;
}
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->GetQ931().SetProgressIndicator(pi);
}
if (h323debug) {
cout << "\t\t- Inserting PI of " << pi << " into ALERTING message" << endl;
}
if (!on_answer_call(GetCallReference(), (const char *)GetCallToken())) {
return H323Connection::AnswerCallDenied;
}
/* The call will be answered later with "AnsweringCall()" function.
*/
return H323Connection::AnswerCallDeferredWithMedia;
}
BOOL MyH323Connection::OnSendSignalSetup(H323SignalPDU & setupPDU)
{
call_details_t cd;
char *s, *s1;
if (h323debug) {
cout << " -- Sending SETUP message" << endl;
}
sourceAliases = setupPDU.GetSourceAliases();
destAliases = setupPDU.GetDestinationAlias();
sourceE164 = "";
setupPDU.GetSourceE164(sourceE164);
destE164 = "";
setupPDU.GetDestinationE164(destE164);
/* Convert complex strings */
// FIXME: deal more than one source alias
if ((s = strchr(sourceAliases, ' ')) != NULL)
*s = '\0';
if ((s = strchr(sourceAliases, '\t')) != NULL)
*s = '\0';
if ((s1 = strchr(destAliases, ' ')) != NULL)
*s1 = '\0';
if ((s1 = strchr(destAliases, '\t')) != NULL)
*s1 = '\0';
cd.call_reference = GetCallReference();
Lock();
cd.call_token = strdup((const char *)GetCallToken());
Unlock();
cd.call_source_aliases = strdup((const char *)sourceAliases);
cd.call_dest_alias = strdup((const char *)destAliases);
cd.call_source_e164 = strdup((const char *)sourceE164);
cd.call_dest_e164 = strdup((const char *)destE164);
int res = on_outgoing_call(cd);
if (!res) {
if (h323debug) {
cout << " -- Call Failed" << endl;
}
return FALSE;
}
return H323Connection::OnSendSignalSetup(setupPDU);
}
BOOL MyH323Connection::OnReceivedCapabilitySet(const H323Capabilities & remoteCaps,
const H245_MultiplexCapability * muxCap,
H245_TerminalCapabilitySetReject & reject)
{
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 (h323debug) {
cout << "\t-- Inbound RFC2833 on payload " << pt << endl;
}
}
return TRUE;
}
/** This callback function is invoked once upon creation of each
* channel for an H323 session
*/
BOOL MyH323Connection::OnStartLogicalChannel(H323Channel & channel)
{
PIPSocket::Address remoteIpAddress;
WORD remotePort;
if (h323debug) {
cout << " -- Started logical channel: ";
cout << ((channel.GetDirection()==H323Channel::IsTransmitter)?"sending ":((channel.GetDirection()==H323Channel::IsReceiver)?"receiving ":" "));
cout << (const char *)(channel.GetCapability()).GetFormatName() << endl;
}
/* adjust the count of channels we have open */
channelsOpen++;
if (h323debug) {
cout << " -- channelsOpen = " << channelsOpen << endl;
}
if (!Lock()) {
ast_log(LOG_ERROR,"chan_h323: OnStartLogicalChannel: Could not obtain connection lock");
return FALSE;
}
/* Connect RTP for incoming calls */
if (!AST_Outgoing) {
H323_ExternalRTPChannel & external = (H323_ExternalRTPChannel &)channel;
external.GetRemoteAddress(remoteIpAddress, remotePort);
if (h323debug) {
cout << "\t\tRTP channel id " << sessionId << " parameters:" << endl;
cout << "\t\t-- remoteIpAddress: " << remoteIpAddress << endl;
cout << "\t\t-- remotePort: " << remotePort << endl;
cout << "\t\t-- ExternalIpAddress: " << externalIpAddress << endl;
cout << "\t\t-- ExternalPort: " << externalPort << endl;
}
/* Notify Asterisk of remote RTP information */
on_start_logical_channel(GetCallReference(), (const char *)remoteIpAddress.AsString(), remotePort,
(const char *)GetCallToken());
AST_RTP_Connected = TRUE;
}
Unlock();
return TRUE;
}
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;
}
}
}
}
}
BOOL MyH323Connection::OnReceivedSignalSetup(const H323SignalPDU & setupPDU)
{
call_details_t cd;
PString sourceE164;
PString destE164;
PString sourceName;
PString sourceAliases;
PString destAliases;
PIPSocket::Address Ip;
WORD sourcePort;
char *s, *s1;
if (h323debug) {
cout << ("\t--Received SETUP message\n");
}
if (connectionState == ShuttingDownConnection)
return FALSE;
sourceAliases = setupPDU.GetSourceAliases();
destAliases = setupPDU.GetDestinationAlias();
sourceE164 = "";
setupPDU.GetSourceE164(sourceE164);
sourceName = "";
sourceName=setupPDU.GetQ931().GetDisplayName();
destE164 = "";
setupPDU.GetDestinationE164(destE164);
/* Convert complex strings */
// FIXME: deal more than one source alias
if ((s = strchr(sourceAliases, ' ')) != NULL) {
*s = '\0';
}
if ((s = strchr(sourceAliases, '\t')) != NULL) {
*s = '\0';
}
if ((s1 = strchr(destAliases, ' ')) != NULL) {
*s1 = '\0';
}
if ((s1 = strchr(destAliases, '\t')) != NULL) {
*s1 = '\0';
}
memset(&cd, 0, sizeof(cd));
cd.call_reference = GetCallReference();
cd.call_token = strdup((const char *)GetCallToken());
cd.call_source_aliases = strdup((const char *)sourceAliases);
cd.call_dest_alias = strdup((const char *)destAliases);
cd.call_source_e164 = strdup((const char *)sourceE164);
cd.call_dest_e164 = strdup((const char *)destE164);
cd.call_source_name = strdup((const char *)sourceName);
GetSignallingChannel()->GetRemoteAddress().GetIpAndPort(Ip, sourcePort);
cd.sourceIp = strdup((const char *)Ip.AsString());
/* Notify Asterisk of the request */
call_options_t *res = on_incoming_call(&cd);
if (!res) {
if (h323debug) {
cout << " -- Call Failed" << endl;
}
return FALSE;
}
progressSetup = res->progress_setup;
progressAlert = res->progress_alert;
dtmfCodec = (RTP_DataFrame::PayloadTypes)res->dtmfcodec;
return H323Connection::OnReceivedSignalSetup(setupPDU);
}
void MyH323Connection::OnSetLocalCapabilities()
{
if (on_setcapabilities)
on_setcapabilities(GetCallReference(), (const char *)callToken);
}
BOOL MyH323Connection::OnReceivedSignalSetup(const H323SignalPDU & setupPDU)
{
if (h323debug) {
ast_verbose(" -- Received SETUP message\n");
}
call_details_t cd;
PString sourceE164;
PString destE164;
PString sourceName;
PString sourceAliases;
PString destAliases;
PIPSocket::Address Ip;
WORD sourcePort;
char *s, *s1;
sourceAliases = setupPDU.GetSourceAliases();
destAliases = setupPDU.GetDestinationAlias();
sourceE164 = "";
setupPDU.GetSourceE164(sourceE164);
sourceName = "";
sourceName=setupPDU.GetQ931().GetDisplayName();
destE164 = "";
setupPDU.GetDestinationE164(destE164);
/* Convert complex strings */
// FIXME: deal more than one source alias
if ((s = strchr(sourceAliases, ' ')) != NULL)
*s = '\0';
if ((s = strchr(sourceAliases, '\t')) != NULL)
*s = '\0';
if ((s1 = strchr(destAliases, ' ')) != NULL)
*s1 = '\0';
if ((s1 = strchr(destAliases, '\t')) != NULL)
*s1 = '\0';
cd.call_reference = GetCallReference();
Lock();
cd.call_token = strdup((const char *)GetCallToken());
Unlock();
cd.call_source_aliases = strdup((const char *)sourceAliases);
cd.call_dest_alias = strdup((const char *)destAliases);
cd.call_source_e164 = strdup((const char *)sourceE164);
cd.call_dest_e164 = strdup((const char *)destE164);
cd.call_source_name = strdup((const char *)sourceName);
GetSignallingChannel()->GetRemoteAddress().GetIpAndPort(Ip, sourcePort);
cd.sourceIp = strdup((const char *)Ip.AsString());
/* Notify Asterisk of the request */
int res = on_incoming_call(cd);
if (!res) {
if (h323debug) {
cout << " -- Call Failed" << endl;
}
return FALSE;
}
return H323Connection::OnReceivedSignalSetup(setupPDU);
}
BOOL MyH323Connection::OnSendSignalSetup(H323SignalPDU & setupPDU)
{
call_details_t cd;
char *s, *s1;
if (h323debug) {
cout << " -- Sending SETUP message" << endl;
}
if (connectionState == ShuttingDownConnection)
return FALSE;
if (!ast_cid_num.IsEmpty()) {
setupPDU.GetQ931().SetCallingPartyNumber(ast_cid_num);
}
if (!ast_cid_name.IsEmpty()) {
setupPDU.GetQ931().SetDisplayName(ast_cid_name);
}
sourceAliases = setupPDU.GetSourceAliases();
destAliases = setupPDU.GetDestinationAlias();
sourceE164 = "";
setupPDU.GetSourceE164(sourceE164);
destE164 = "";
setupPDU.GetDestinationE164(destE164);
/* Convert complex strings */
// FIXME: deal more than one source alias
if ((s = strchr(sourceAliases, ' ')) != NULL) {
*s = '\0';
}
if ((s = strchr(sourceAliases, '\t')) != NULL) {
*s = '\0';
}
if ((s1 = strchr(destAliases, ' ')) != NULL) {
*s1 = '\0';
}
if ((s1 = strchr(destAliases, '\t')) != NULL) {
*s1 = '\0';
}
memset(&cd, 0, sizeof(cd));
cd.call_reference = GetCallReference();
cd.call_token = strdup((const char *)GetCallToken());
cd.call_source_aliases = strdup((const char *)sourceAliases);
cd.call_dest_alias = strdup((const char *)destAliases);
cd.call_source_e164 = strdup((const char *)sourceE164);
cd.call_dest_e164 = strdup((const char *)destE164);
int res = on_outgoing_call(&cd);
if (!res) {
if (h323debug) {
cout << "\t-- Call Failed" << endl;
}
return FALSE;
}
if (progressSetup) {
setupPDU.GetQ931().SetProgressIndicator(progressSetup);
}
return H323Connection::OnSendSignalSetup(setupPDU);
}