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asterisk/addons/ooh323c/src/ooh245.c

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v18.15.1
2023-05-25 18:45:57 +00:00
/*
* Copyright (C) 2004-2005 by Objective Systems, Inc.
*
* This software is furnished under an open source license and may be
* used and copied only in accordance with the terms of this license.
* The text of the license may generally be found in the root
* directory of this installation in the COPYING file. It
* can also be viewed online at the following URL:
*
* http://www.obj-sys.com/open/license.html
*
* Any redistributions of this file including modified versions must
* maintain this copyright notice.
*
*****************************************************************************/
#include "asterisk.h"
#include "asterisk/lock.h"
#include "ooh245.h"
#include "ooq931.h"
#include "ooCalls.h"
#include "printHandler.h"
#include "ooh323ep.h"
#include "ooCapability.h"
#include "ooTimer.h"
#ifdef _WIN32
#include <stdlib.h>
#include <process.h>
#define getpid _getpid
#endif
#include <time.h>
/** Global endpoint structure */
extern ooEndPoint gH323ep;
static ASN1OBJID gh245ProtocolID = {
6, { 0, 0, 8, 245, 0, 8 }
};
int ooCreateH245Message(OOH323CallData* call, H245Message **pph245msg, int type)
{
/* OOCTXT* pctxt = &gH323ep.msgctxt; */
OOCTXT* pctxt = call->msgctxt;
*pph245msg = (H245Message*) memAlloc (pctxt, sizeof(H245Message));
if(!(*pph245msg))
{
OOTRACEERR1("ERROR:Failed to allocate memory for h245 message\n");
return OO_FAILED;
}
else
{
(*pph245msg)->h245Msg.t = type;
(*pph245msg)->logicalChannelNo = 0;
switch(type)
{
case T_H245MultimediaSystemControlMessage_request:
(*pph245msg)->h245Msg.u.request = (H245RequestMessage*)
memAllocZ (pctxt, sizeof(H245RequestMessage));
/*Check for successful mem allocation, and if successful initialize
mem to zero*/
if(!(*pph245msg)->h245Msg.u.request)
{
OOTRACEERR1("ERROR:Memory allocation for H.245 request"
" message failed\n");
return OO_FAILED;
}
break;
case T_H245MultimediaSystemControlMessage_response:
(*pph245msg)->h245Msg.u.response = (H245ResponseMessage*)
memAllocZ (pctxt, sizeof(H245ResponseMessage));
/*Check for successful mem allocation, and if successful initialize
mem to zero*/
if(!(*pph245msg)->h245Msg.u.response)
{
OOTRACEERR1("ERROR:Memory allocation for H.245 response"
" message failed\n");
return OO_FAILED;
}
break;
case T_H245MultimediaSystemControlMessage_command:
(*pph245msg)->h245Msg.u.command = (H245CommandMessage*)
memAllocZ (pctxt, sizeof(H245CommandMessage));
/*Check for successful mem allocation, and if successful initialize
mem to zero*/
if(!(*pph245msg)->h245Msg.u.command)
{
OOTRACEERR1("ERROR:Memory allocation for H.245 command"
" message failed\n");
return OO_FAILED;
}
break;
case T_H245MultimediaSystemControlMessage_indication:
(*pph245msg)->h245Msg.u.indication = (H245IndicationMessage*)
memAllocZ (pctxt, sizeof(H245IndicationMessage));
/*Check for successful mem allocation, and if successful initialize
mem to zero*/
if(!(*pph245msg)->h245Msg.u.indication)
{
OOTRACEERR1("ERROR:Memory allocation for H.245 indication"
" message failed\n");
return OO_FAILED;
}
break;
default:
OOTRACEERR1("ERROR: H245 message type not supported\n");
}
return OO_OK;
}
}
int ooFreeH245Message(OOH323CallData *call, H245Message *pmsg)
{
/* In case of tunneling, memory is freed when corresponding Q931 message is freed.*/
OOTRACEDBGC1("msgCtxt Reset?");
if (0 != pmsg) {
if(!OO_TESTFLAG (call->flags, OO_M_TUNNELING)){
/* memReset (&gH323ep.msgctxt); */
memReset (call->msgctxt);
OOTRACEDBGC3(" Done (%s, %s)\n", call->callType, call->callToken);
return OO_OK;
}
}
OOTRACEDBGC3("Not Done (%s, %s)\n", call->callType, call->callToken);
return OO_OK;
}
#ifndef _COMPACT
static void ooPrintH245Message
(OOH323CallData* call, ASN1OCTET* msgbuf, ASN1UINT msglen)
{
OOCTXT ctxt;
H245MultimediaSystemControlMessage mmMsg;
int ret;
initContext (&ctxt);
setPERBuffer (&ctxt, msgbuf, msglen, TRUE);
initializePrintHandler(&printHandler, "Sending H.245 Message");
/* Set event handler */
setEventHandler (&ctxt, &printHandler);
ret = asn1PD_H245MultimediaSystemControlMessage(&ctxt, &mmMsg);
if(ret != ASN_OK)
{
OOTRACEERR3("Error decoding H245 message (%s, %s)\n",
call->callType, call->callToken);
OOTRACEERR1 (errGetText (&ctxt));
}
finishPrint();
freeContext(&ctxt);
}
#endif
int ooEncodeH245Message
(OOH323CallData *call, H245Message *ph245Msg, char *msgbuf, int size)
{
int len=0, encodeLen=0, i=0;
int stat=0;
ASN1OCTET* encodePtr=NULL;
H245MultimediaSystemControlMessage *multimediaMsg;
/* OOCTXT *pctxt = &gH323ep.msgctxt; */
OOCTXT *pctxt = call->msgctxt;
multimediaMsg = &(ph245Msg->h245Msg);
if(!msgbuf || size<200)
{
OOTRACEERR3("Error: Invalid message buffer/size for "
"ooEncodeH245Message. (%s, %s)\n",
call->callType, call->callToken);
return OO_FAILED;
}
msgbuf[i++] = ph245Msg->msgType;
msgbuf[i++] = (ph245Msg->logicalChannelNo>>8);
msgbuf[i++] = ph245Msg->logicalChannelNo;
/* This will contain the total length of the encoded message */
msgbuf[i++] = 0;
msgbuf[i++] = 0;
if(!OO_TESTFLAG (call->flags, OO_M_TUNNELING))
{
/* Populate message buffer to be returned */
len = 4;
msgbuf[i++] = 3; /* TPKT version */
msgbuf[i++] = 0; /* TPKT resevred */
/* 1st octet of length, will be populated once len is determined */
msgbuf[i++] = 0;
/* 2nd octet of length, will be populated once len is determined */
msgbuf[i++] = 0;
}
setPERBuffer (pctxt, (unsigned char*) msgbuf+i, (size-i), TRUE);
/* stat = asn1PE_H245MultimediaSystemControlMessage (&gH323ep.msgctxt, */
stat = asn1PE_H245MultimediaSystemControlMessage (call->msgctxt,
multimediaMsg);
if (stat != ASN_OK) {
OOTRACEERR3 ("ERROR: H245 Message encoding failed (%s, %s)\n",
call->callType, call->callToken);
/* OOTRACEERR1 (errGetText (&gH323ep.msgctxt)); */
OOTRACEERR1 (errGetText (call->msgctxt));
return OO_FAILED;
}
encodePtr = encodeGetMsgPtr(pctxt, &encodeLen);
len +=encodeLen;
msgbuf[3] = (len>>8);
msgbuf[4] = len;
if(!OO_TESTFLAG (call->flags, OO_M_TUNNELING))
{
msgbuf[7] = len>>8;
msgbuf[8] = len;
}
#ifndef _COMPACT
ooPrintH245Message (call, encodePtr, encodeLen);
#endif
return OO_OK;
}
int ooSendH245Msg(OOH323CallData *call, H245Message *msg)
{
int iRet=0, len=0, msgType=0, logicalChannelNo = 0;
ASN1OCTET * encodebuf;
if(!call)
return OO_FAILED;
encodebuf = (ASN1OCTET*) memAlloc (call->pctxt, MAXMSGLEN);
if(!encodebuf)
{
OOTRACEERR3("Error:Failed to allocate memory for encoding H245 "
"message(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
iRet = ooEncodeH245Message(call, msg, (char*) encodebuf, MAXMSGLEN);
if(iRet != OO_OK)
{
OOTRACEERR3("Error:Failed to encode H245 message. (%s, %s)\n",
call->callType, call->callToken);
memFreePtr (call->pctxt, encodebuf);
return OO_FAILED;
}
if(!call->pH245Channel)
{
call->pH245Channel =
(OOH323Channel*) memAllocZ (call->pctxt, sizeof(OOH323Channel));
if(!call->pH245Channel)
{
OOTRACEERR3("Error:Failed to allocate memory for H245Channel "
"structure. (%s, %s)\n", call->callType, call->callToken);
memFreePtr (call->pctxt, encodebuf);
return OO_FAILED;
}
}
/* We need to send EndSessionCommand immediately.*/
if(!OO_TESTFLAG(call->flags, OO_M_TUNNELING)){
if(encodebuf[0]== OOEndSessionCommand) /* High priority message */
{
dListFreeAll(call->pctxt, &call->pH245Channel->outQueue);
dListAppend (call->pctxt, &call->pH245Channel->outQueue, encodebuf);
ooSendMsg(call, OOH245MSG);
}
else{
dListAppend (call->pctxt, &call->pH245Channel->outQueue, encodebuf);
OOTRACEDBGC4("Queued H245 messages %d. (%s, %s)\n",
call->pH245Channel->outQueue.count,
call->callType, call->callToken);
}
}
else{
msgType = encodebuf[0];
logicalChannelNo = encodebuf[1];
logicalChannelNo = logicalChannelNo << 8;
logicalChannelNo = (logicalChannelNo | encodebuf[2]);
len = encodebuf[3];
len = len<<8;
len = (len | encodebuf[4]);
iRet = ooSendAsTunneledMessage
(call, encodebuf+5,len,msgType, logicalChannelNo);
if(iRet != OO_OK)
{
memFreePtr (call->pctxt, encodebuf);
OOTRACEERR3("ERROR:Failed to tunnel H.245 message (%s, %s)\n",
call->callType, call->callToken);
if(call->callState < OO_CALL_CLEAR)
{
call->callEndReason = OO_REASON_INVALIDMESSAGE;
call->callState = OO_CALL_CLEAR;
}
return OO_FAILED;
}
memFreePtr (call->pctxt, encodebuf);
return OO_OK;
}
return OO_OK;
}
int ooSendTermCapMsg(OOH323CallData *call)
{
int ret;
H245RequestMessage *request=NULL;
OOCTXT *pctxt=NULL;
ooH323EpCapability *epCap=NULL;
H245TerminalCapabilitySet *termCap=NULL;
H245AudioCapability *audioCap=NULL;
H245DataApplicationCapability *t38Cap, *rtdCap = NULL;
H245AudioTelephonyEventCapability *ateCap=NULL;
H245UserInputCapability *userInputCap = NULL;
H245CapabilityTableEntry *entry=NULL;
H245AlternativeCapabilitySet *altSetAudio=NULL, *altSetVideo=NULL, *altSetDtmf=NULL;
H245CapabilityDescriptor *capDesc=NULL;
H245Message *ph245msg=NULL;
H245VideoCapability *videoCap=NULL;
int i=0,k=0;
if(call->localTermCapState == OO_LocalTermCapSetSent)
{
OOTRACEINFO3("TerminalCapabilitySet exchange procedure already in "
"progress. (%s, %s)\n", call->callType, call->callToken);
return OO_OK;
}
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_request);
if(ret == OO_FAILED)
{
OOTRACEERR3("Error:Failed to create H245 message for Terminal "
"CapabilitySet (%s, %s)\n", call->callType,call->callToken);
return OO_FAILED;
}
/* Set request type as TerminalCapabilitySet */
request = ph245msg->h245Msg.u.request;
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
ph245msg->msgType = OOTerminalCapabilitySet;
if(request == NULL)
{
OOTRACEERR3("ERROR: No memory allocated for request message (%s, %s)\n",
call->callType, call->callToken);
return OO_FAILED;
}
memset(request, 0, sizeof(H245RequestMessage));
request->t = T_H245RequestMessage_terminalCapabilitySet;
request->u.terminalCapabilitySet = (H245TerminalCapabilitySet*)
memAlloc(pctxt, sizeof(H245TerminalCapabilitySet));
termCap = request->u.terminalCapabilitySet;
memset(termCap, 0, sizeof(H245TerminalCapabilitySet));
termCap->m.multiplexCapabilityPresent = 0;
termCap->m.capabilityTablePresent = 1;
termCap->m.capabilityDescriptorsPresent = 1;
termCap->sequenceNumber = ++(call->localTermCapSeqNo);
termCap->protocolIdentifier = gh245ProtocolID; /* protocol id */
/* Initialize alternate sets */
altSetAudio = (H245AlternativeCapabilitySet*)
memAlloc(pctxt, sizeof(H245AlternativeCapabilitySet));
altSetVideo = (H245AlternativeCapabilitySet*)
memAlloc(pctxt, sizeof(H245AlternativeCapabilitySet));
altSetDtmf = (H245AlternativeCapabilitySet*)
memAlloc(pctxt, sizeof(H245AlternativeCapabilitySet));
if(!altSetAudio || !altSetVideo || !altSetDtmf)
{
OOTRACEERR3("Error:Memory - ooSendTermCapMsg - altSet."
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
memset(altSetDtmf, 0, sizeof(H245AlternativeCapabilitySet));
memset(altSetVideo, 0, sizeof(H245AlternativeCapabilitySet));
memset(altSetAudio, 0, sizeof(H245AlternativeCapabilitySet));
/* Add audio Capabilities */
dListInit(&(termCap->capabilityTable));
for(k=0; k<(int)call->capPrefs.index; k++)
{
if(call->ourCaps)
epCap = call->ourCaps;
else
epCap = gH323ep.myCaps;
while(epCap) {
if(epCap->cap == call->capPrefs.order[k])
break;
epCap = epCap->next;
}
if(!epCap)
{
OOTRACEWARN4("WARN:Preferred capability %d not supported.(%s, %s)\n",
call->capPrefs.order[k],call->callType, call->callToken);
continue;
}
if(epCap->capType == OO_CAP_TYPE_AUDIO)
{
/* Create audio capability. If capability supports receive, we only
add it as receive capability in TCS. However, if it supports only
transmit, we add it as transmit capability in TCS.
*/
if((epCap->dir & OORX))
{
OOTRACEDBGC4("Sending receive capability %s in TCS.(%s, %s)\n",
ooGetCapTypeText(epCap->cap), call->callType, call->callToken);
audioCap = ooCapabilityCreateAudioCapability(epCap, pctxt, OORX);
if(!audioCap)
{
OOTRACEWARN4("WARN:Failed to create audio capability %s "
"(%s, %s)\n", ooGetCapTypeText(epCap->cap),
call->callType, call->callToken);
continue;
}
}
else if(epCap->dir & OOTX)
{
OOTRACEDBGC4("Sending transmit capability %s in TCS.(%s, %s)\n",
ooGetCapTypeText(epCap->cap), call->callType, call->callToken);
audioCap = ooCapabilityCreateAudioCapability(epCap, pctxt, OOTX);
if(!audioCap)
{
OOTRACEWARN4("WARN:Failed to create audio capability %s "
"(%s, %s)\n", ooGetCapTypeText(epCap->cap),
call->callType, call->callToken);
continue;
}
}
else{
OOTRACEWARN3("Warn:Capability is not RX/TX/RXANDTX. Symmetric "
"capabilities are not supported.(%s, %s)\n",
call->callType, call->callToken);
continue;
}
/* Add Capabilities to Capability Table */
entry = (H245CapabilityTableEntry*) memAlloc(pctxt,
sizeof(H245CapabilityTableEntry));
if(!entry)
{
OOTRACEERR3("Error:Memory - ooSendTermCapMsg - entry(audio Cap)."
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
memset(entry, 0, sizeof(H245CapabilityTableEntry));
entry->m.capabilityPresent = 1;
if((epCap->dir & OORX))
{
entry->capability.t = T_H245Capability_receiveAudioCapability;
entry->capability.u.receiveAudioCapability = audioCap;
}
else{
entry->capability.t = T_H245Capability_transmitAudioCapability;
entry->capability.u.transmitAudioCapability = audioCap;
}
entry->capabilityTableEntryNumber = i+1;
dListAppend(pctxt , &(termCap->capabilityTable), entry);
altSetAudio->elem[altSetAudio->n] = i+1;
altSetAudio->n++;
i++;
}
else if(epCap->capType == OO_CAP_TYPE_DATA)
{
/* Create t.38 capability. If capability supports receive, we only
add it as receive capability in TCS. However, if it supports only
transmit, we add it as transmit capability in TCS.
*/
if((epCap->dir & OORX) && !(epCap->dir & OOTX))
{
OOTRACEDBGC3("Sending receive capability t38 in TCS.(%s, %s)\n",
call->callType, call->callToken);
t38Cap = ooCapabilityCreateT38Capability(epCap, pctxt, OORX);
if(!t38Cap)
{
OOTRACEWARN3("WARN:Failed to create t38 capability for"
"%s, %s\n",
call->callType, call->callToken);
continue;
}
}
else if((epCap->dir & OOTX) && !(epCap->dir & OORX))
{
OOTRACEDBGC3("Sending transmit capability t38 in TCS.(%s, %s)\n",
call->callType, call->callToken);
t38Cap = ooCapabilityCreateT38Capability(epCap, pctxt, OOTX);
if(!t38Cap)
{
OOTRACEWARN3("WARN:Failed to create capability t38 "
"(%s, %s)\n",
call->callType, call->callToken);
continue;
}
}
else{
OOTRACEDBGC3("Sending transmit&recevie capability t38 in TCS.(%s, %s)\n",
call->callType, call->callToken);
t38Cap = ooCapabilityCreateT38Capability(epCap, pctxt, OOTX&OORX);
if(!t38Cap)
{
OOTRACEWARN3("WARN:Failed to create capability t38 "
"(%s, %s)\n",
call->callType, call->callToken);
continue;
}
}
/* Add Capabilities to Capability Table */
entry = (H245CapabilityTableEntry*) memAlloc(pctxt,
sizeof(H245CapabilityTableEntry));
if(!entry)
{
OOTRACEERR3("Error:Memory - ooSendTermCapMsg - entry(audio Cap)."
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
memset(entry, 0, sizeof(H245CapabilityTableEntry));
entry->m.capabilityPresent = 1;
if((epCap->dir & OORX) && (epCap->dir & OOTX)) {
entry->capability.t = T_H245Capability_receiveAndTransmitDataApplicationCapability;
entry->capability.u.receiveAndTransmitDataApplicationCapability = t38Cap;
} else if((epCap->dir & OORX)) {
entry->capability.t = T_H245Capability_receiveDataApplicationCapability;
entry->capability.u.receiveDataApplicationCapability = t38Cap;
}else{
entry->capability.t = T_H245Capability_transmitDataApplicationCapability;
entry->capability.u.transmitDataApplicationCapability = t38Cap;
}
entry->capabilityTableEntryNumber = i+1;
dListAppend(pctxt , &(termCap->capabilityTable), entry);
altSetAudio->elem[altSetAudio->n] = i+1;
altSetAudio->n++;
i++;
}
else if(epCap->capType == OO_CAP_TYPE_VIDEO)
{
if((epCap->dir & OORX))
{
OOTRACEDBGC4("Sending receive capability %s in TCS.(%s, %s)\n",
ooGetCapTypeText(epCap->cap), call->callType, call->callToken);
videoCap = ooCapabilityCreateVideoCapability(epCap, pctxt, OORX);
if(!videoCap)
{
OOTRACEWARN4("WARN:Failed to create Video capability %s "
"(%s, %s)\n", ooGetCapTypeText(epCap->cap),
call->callType, call->callToken);
continue;
}
}
else if(epCap->dir & OOTX)
{
OOTRACEDBGC4("Sending transmit capability %s in TCS.(%s, %s)\n",
ooGetCapTypeText(epCap->cap), call->callType, call->callToken);
videoCap = ooCapabilityCreateVideoCapability(epCap, pctxt, OOTX);
if(!videoCap)
{
OOTRACEWARN4("WARN:Failed to create video capability %s "
"(%s, %s)\n", ooGetCapTypeText(epCap->cap),
call->callType, call->callToken);
continue;
}
}
else{
OOTRACEWARN3("Warn:Capability is not RX/TX/RXANDTX. Symmetric "
"capabilities are not supported.(%s, %s)\n",
call->callType, call->callToken);
continue;
}
/* Add Video capabilities to Capability Table */
entry = (H245CapabilityTableEntry*) memAlloc(pctxt,
sizeof(H245CapabilityTableEntry));
if(!entry)
{
OOTRACEERR3("Error:Memory - ooSendTermCapMsg - entry(video Cap)."
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
memset(entry, 0, sizeof(H245CapabilityTableEntry));
entry->m.capabilityPresent = 1;
if((epCap->dir & OORX))
{
entry->capability.t = T_H245Capability_receiveVideoCapability;
entry->capability.u.receiveVideoCapability = videoCap;
}
else{
entry->capability.t = T_H245Capability_transmitVideoCapability;
entry->capability.u.transmitVideoCapability = videoCap;
}
entry->capabilityTableEntryNumber = i+1;
dListAppend(pctxt , &(termCap->capabilityTable), entry);
altSetVideo->elem[altSetVideo->n] = i+1;
altSetVideo->n++;
i++;
}
}
/* Add dtmf capability, if any */
if(call->dtmfmode & OO_CAP_DTMF_RFC2833)
{
ateCap = (H245AudioTelephonyEventCapability*)
ooCapabilityCreateDTMFCapability(OO_CAP_DTMF_RFC2833, call->dtmfcodec, pctxt);
if(!ateCap)
{
OOTRACEWARN3("WARN:Failed to add RFC2833 cap to TCS(%s, %s)\n",
call->callType, call->callToken);
}
else {
entry = (H245CapabilityTableEntry*) memAlloc(pctxt,
sizeof(H245CapabilityTableEntry));
if(!entry)
{
OOTRACEERR3("Error:Failed to allocate memory for new capability "
"table entry. (%s, %s)\n", call->callType,
call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
memset(entry, 0, sizeof(H245CapabilityTableEntry));
entry->m.capabilityPresent = 1;
entry->capability.t = T_H245Capability_receiveRTPAudioTelephonyEventCapability;
entry->capability.u.receiveRTPAudioTelephonyEventCapability = ateCap;
entry->capabilityTableEntryNumber = i+1;
dListAppend(pctxt , &(termCap->capabilityTable), entry);
altSetDtmf->elem[altSetDtmf->n] = i+1;
altSetDtmf->n++;
i++;
}
}
if(call->dtmfmode & OO_CAP_DTMF_CISCO)
{
rtdCap = (H245DataApplicationCapability*)
ooCapabilityCreateDTMFCapability(OO_CAP_DTMF_CISCO, call->dtmfcodec, pctxt);
if(!rtdCap)
{
OOTRACEWARN3("WARN:Failed to add RTP/CISCO DTMF cap to TCS(%s, %s)\n",
call->callType, call->callToken);
}
else {
entry = (H245CapabilityTableEntry*) memAlloc(pctxt,
sizeof(H245CapabilityTableEntry));
if(!entry)
{
OOTRACEERR3("Error:Failed to allocate memory for new capability "
"table entry. (%s, %s)\n", call->callType,
call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
memset(entry, 0, sizeof(H245CapabilityTableEntry));
entry->m.capabilityPresent = 1;
entry->capability.t = T_H245Capability_receiveDataApplicationCapability;
entry->capability.u.receiveDataApplicationCapability = rtdCap;
entry->capabilityTableEntryNumber = i+1;
dListAppend(pctxt , &(termCap->capabilityTable), entry);
altSetDtmf->elem[altSetDtmf->n] = i+1;
altSetDtmf->n++;
i++;
}
}
if(call->dtmfmode & OO_CAP_DTMF_H245_alphanumeric)
{
userInputCap = (H245UserInputCapability*)ooCapabilityCreateDTMFCapability
(OO_CAP_DTMF_H245_alphanumeric, 0, pctxt);
if(!userInputCap)
{
OOTRACEWARN3("WARN:Failed to add H245(alphanumeric) cap to "
"TCS(%s, %s)\n", call->callType, call->callToken);
}
else {
entry = (H245CapabilityTableEntry*) memAlloc(pctxt,
sizeof(H245CapabilityTableEntry));
if(!entry)
{
OOTRACEERR3("Error:Failed to allocate memory for new capability "
"table entry. (%s, %s)\n", call->callType,
call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
memset(entry, 0, sizeof(H245CapabilityTableEntry));
entry->m.capabilityPresent = 1;
entry->capability.t = T_H245Capability_receiveAndTransmitUserInputCapability;
entry->capability.u.receiveAndTransmitUserInputCapability = userInputCap;
entry->capabilityTableEntryNumber = i+1;
dListAppend(pctxt , &(termCap->capabilityTable), entry);
altSetDtmf->elem[altSetDtmf->n] = i+1;
altSetDtmf->n++;
i++;
}
}
userInputCap = NULL;
if(call->dtmfmode & OO_CAP_DTMF_H245_signal)
{
userInputCap = (H245UserInputCapability*)ooCapabilityCreateDTMFCapability
(OO_CAP_DTMF_H245_signal, 0, pctxt);
if(!userInputCap)
{
OOTRACEWARN3("WARN:Failed to add H245(signal) cap to "
"TCS(%s, %s)\n", call->callType, call->callToken);
}
else {
entry = (H245CapabilityTableEntry*) memAlloc(pctxt,
sizeof(H245CapabilityTableEntry));
if(!entry)
{
OOTRACEERR3("Error:Failed to allocate memory for new capability "
"table entry. (%s, %s)\n", call->callType,
call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
memset(entry, 0, sizeof(H245CapabilityTableEntry));
entry->m.capabilityPresent = 1;
entry->capability.t = T_H245Capability_receiveAndTransmitUserInputCapability;
entry->capability.u.receiveAndTransmitUserInputCapability = userInputCap;
entry->capabilityTableEntryNumber = i+1;
dListAppend(pctxt , &(termCap->capabilityTable), entry);
altSetDtmf->elem[altSetDtmf->n] = i+1;
altSetDtmf->n++;
i++;
}
}
/*TODO:Add Video and Data capabilities, if required*/
if(i==0)
{
OOTRACEERR3("Error:No capabilities found to send in TCS message."
" (%s, %s)\n", call->callType, call->callToken);
ooFreeH245Message(call,ph245msg);
return OO_FAILED;
}
/* Define capability descriptior */
capDesc = (H245CapabilityDescriptor*)
memAlloc(pctxt, sizeof(H245CapabilityDescriptor));
memset(capDesc, 0, sizeof(H245CapabilityDescriptor));
capDesc->m.simultaneousCapabilitiesPresent = 1;
capDesc->capabilityDescriptorNumber = 1;
dListInit(&(capDesc->simultaneousCapabilities));
/* Add Alternative Capability Set.
TODO: Right now all capabilities are added in separate
alternate capabilities set. Need a way for application
developer to specify the alternative capability sets.
*/
/* for(j=0; j<i; j++)
{
altSet = (H245AlternativeCapabilitySet*)
memAlloc(pctxt, sizeof(H245AlternativeCapabilitySet));
memset(altSet, 0, sizeof(H245AlternativeCapabilitySet));
altSet->n = 1;
altSet->elem[0] = j+1;
dListAppend(pctxt, &(capDesc->simultaneousCapabilities), altSet);
} */
if (altSetAudio->n) dListAppend(pctxt, &(capDesc->simultaneousCapabilities), altSetAudio);
if (altSetVideo->n) dListAppend(pctxt, &(capDesc->simultaneousCapabilities), altSetVideo);
if (altSetDtmf->n) dListAppend(pctxt, &(capDesc->simultaneousCapabilities), altSetDtmf);
dListInit(&(termCap->capabilityDescriptors));
dListAppend(pctxt, &(termCap->capabilityDescriptors), capDesc);
OOTRACEDBGA3("Built terminal capability set message (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue TCS message to outbound queue. "
"(%s, %s)\n", call->callType, call->callToken);
}
else {
call->localTermCapState = OO_LocalTermCapSetSent;
}
ooFreeH245Message(call,ph245msg);
return ret;
}
int ooSendEmptyTermCapMsg(OOH323CallData *call)
{
int ret;
H245RequestMessage *request = NULL;
OOCTXT *pctxt = NULL;
H245TerminalCapabilitySet *termCap = NULL;
H245Message *ph245msg = NULL;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_request);
if (ret == OO_FAILED) {
OOTRACEERR3("Error:Failed to create H245 message for Terminal "
"CapabilitySet (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
/* Set request type as TerminalCapabilitySet */
request = ph245msg->h245Msg.u.request;
pctxt = call->msgctxt;
ph245msg->msgType = OOTerminalCapabilitySet;
memset(request, 0, sizeof(H245RequestMessage));
request->t = T_H245RequestMessage_terminalCapabilitySet;
request->u.terminalCapabilitySet = (H245TerminalCapabilitySet*)
memAlloc(pctxt, sizeof(H245TerminalCapabilitySet));
termCap = request->u.terminalCapabilitySet;
memset(termCap, 0, sizeof(H245TerminalCapabilitySet));
termCap->m.multiplexCapabilityPresent = 0;
termCap->m.capabilityTablePresent = 0;
termCap->m.capabilityDescriptorsPresent = 0;
termCap->sequenceNumber = ++(call->localTermCapSeqNo);
termCap->protocolIdentifier = gh245ProtocolID; /* protocol id */
OOTRACEDBGA3("Built empty terminal capability set message (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if (ret != OO_OK) {
OOTRACEERR3("Error:Failed to enqueue empty TCS message to outbound queue. "
"(%s, %s)\n", call->callType, call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
ASN1UINT ooGenerateStatusDeterminationNumber()
{
ASN1UINT statusDeterminationNumber;
ASN1UINT random_factor = getpid();
#ifdef _WIN32
SYSTEMTIME systemTime;
GetLocalTime(&systemTime);
srand((systemTime.wMilliseconds ^ systemTime.wSecond) + random_factor);
#else
struct timeval tv;
gettimeofday(&tv, NULL);
srand((tv.tv_usec ^ tv.tv_sec) + random_factor );
#endif
statusDeterminationNumber = rand()%16777215;
return statusDeterminationNumber;
}
/* TODO: Should Send MasterSlave Release when no response from
Remote endpoint after MasterSlaveDetermination sent within
timeout.
*/
int ooHandleMasterSlave(OOH323CallData *call, void * pmsg,
int msgType)
{
H245MasterSlaveDetermination *masterSlave;
H245MasterSlaveDeterminationAck *masterSlaveAck;
ASN1UINT statusDeterminationNumber, moduloDiff;
switch(msgType)
{
case OOMasterSlaveDetermination:
OOTRACEINFO3("Master Slave Determination received (%s, %s)\n",
call->callType, call->callToken);
masterSlave = (H245MasterSlaveDetermination*)pmsg;
if(call->masterSlaveState != OO_MasterSlave_DetermineSent &&
OO_TESTFLAG(gH323ep.flags, OO_M_TRYBEMASTER))
{
ooSendMasterSlaveDeterminationAck(call, "slave");
call->masterSlaveState = OO_MasterSlave_Master;
OOTRACEINFO3("MasterSlaveDetermination done - Master(%s, %s)\n",
call->callType, call->callToken);
return OO_OK;
}
if(masterSlave->terminalType < gH323ep.termType)
{
ooSendMasterSlaveDeterminationAck(call, "slave");
call->masterSlaveState = OO_MasterSlave_Master;
OOTRACEINFO3("MasterSlaveDetermination done - Master(%s, %s)\n",
call->callType, call->callToken);
return OO_OK;
}
if(masterSlave->terminalType > gH323ep.termType)
{
ooSendMasterSlaveDeterminationAck(call, "master");
call->masterSlaveState = OO_MasterSlave_Slave;
OOTRACEINFO3("MasterSlaveDetermination done - Slave(%s, %s)\n",
call->callType, call->callToken);
return OO_OK;
}
/* Since term types are same, master slave determination will
be done based on statusdetermination number
*/
OOTRACEDBGA3("Determining master-slave based on StatusDetermination"
"Number (%s, %s)\n", call->callType, call->callToken);
if(call->masterSlaveState == OO_MasterSlave_DetermineSent)
statusDeterminationNumber = call->statusDeterminationNumber;
else
if (OO_TESTFLAG(gH323ep.flags, OO_M_TRYBEMASTER))
statusDeterminationNumber = masterSlave->statusDeterminationNumber - 1;
else
statusDeterminationNumber = ooGenerateStatusDeterminationNumber();
moduloDiff = (masterSlave->statusDeterminationNumber - statusDeterminationNumber)
&0xffffff;
/* if(masterSlave->statusDeterminationNumber >
statusDeterminationNumber) */
if (moduloDiff < 0x800000 && moduloDiff != 0)
{
ooSendMasterSlaveDeterminationAck(call, "slave");
call->masterSlaveState = OO_MasterSlave_Master;
OOTRACEINFO3("MasterSlaveDetermination done - Master(%s, %s)\n",
call->callType, call->callToken);
return OO_OK;
}
/* if(masterSlave->statusDeterminationNumber <
statusDeterminationNumber) */
if (moduloDiff > 0x800000)
{
ooSendMasterSlaveDeterminationAck(call, "master");
call->masterSlaveState = OO_MasterSlave_Slave;
OOTRACEINFO3("MasterSlaveDetermination done - Slave(%s, %s)\n",
call->callType, call->callToken);
return OO_OK;
}
/* if(masterSlave->statusDeterminationNumber ==
statusDeterminationNumber) */
if (moduloDiff == 0 || moduloDiff == 0x800000)
{
ooSendMasterSlaveDeterminationReject (call);
OOTRACEERR3("ERROR:MasterSlaveDetermination failed- identical "
"numbers (%s, %s)\n", call->callType, call->callToken);
}
break;
case OOMasterSlaveAck:
masterSlaveAck = (H245MasterSlaveDeterminationAck*)pmsg;
if(call->masterSlaveState == OO_MasterSlave_DetermineSent)
{
if(masterSlaveAck->decision.t ==
T_H245MasterSlaveDeterminationAck_decision_master)
{
ooSendMasterSlaveDeterminationAck(call, "slave");
call->masterSlaveState = OO_MasterSlave_Master;
OOTRACEINFO3("MasterSlaveDetermination done - Master(%s, %s)\n",
call->callType, call->callToken);
}
else
{
ooSendMasterSlaveDeterminationAck(call, "master");
call->masterSlaveState = OO_MasterSlave_Slave;
OOTRACEINFO3("MasterSlaveDetermination done - Slave(%s, %s)\n",
call->callType, call->callToken);
}
}
call->msAckStatus = OO_msAck_remoteReceived;
if(call->localTermCapState == OO_LocalTermCapSetAckRecvd &&
call->remoteTermCapState == OO_RemoteTermCapSetAckSent)
{
/*Since Cap exchange and MasterSlave Procedures are done */
if(gH323ep.h323Callbacks.openLogicalChannels)
gH323ep.h323Callbacks.openLogicalChannels(call);
/* ooSendStatusInquiry(call); */
if(!ooGetTransmitLogicalChannel(call))
ooOpenLogicalChannels(call);
#if 0
if(!call->logicalChans){
if(!gH323ep.h323Callbacks.openLogicalChannels)
ooOpenLogicalChannels(call);
else
gH323ep.h323Callbacks.openLogicalChannels(call);
}
#endif
}
else
OOTRACEDBGC1("Not opening logical channels as Cap exchange "
"remaining\n");
break;
default:
OOTRACEWARN3("Warn:Unhandled Master Slave message received - %s - "
"%s\n", call->callType, call->callToken);
}
return OO_OK;
}
int ooSendMasterSlaveDetermination(OOH323CallData *call)
{
int ret;
H245Message* ph245msg=NULL;
H245RequestMessage *request;
/* OOCTXT *pctxt=&gH323ep.msgctxt; */
OOCTXT *pctxt=call->msgctxt;
H245MasterSlaveDetermination* pMasterSlave;
/* Check whether Master Slave Determination already in progress */
if(call->masterSlaveState != OO_MasterSlave_Idle)
{
OOTRACEINFO3("MasterSlave determination already in progress (%s, %s)\n",
call->callType, call->callToken);
return OO_OK;
}
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_request);
if(ret != OO_OK)
{
OOTRACEERR3("Error: creating H245 message - MasterSlave Determination "
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOMasterSlaveDetermination;
request = ph245msg->h245Msg.u.request;
request->t = T_H245RequestMessage_masterSlaveDetermination;
request->u.masterSlaveDetermination = (H245MasterSlaveDetermination*)
ASN1MALLOC(pctxt, sizeof(H245MasterSlaveDetermination));
pMasterSlave = request->u.masterSlaveDetermination;
memset(pMasterSlave, 0, sizeof(H245MasterSlaveDetermination));
pMasterSlave->terminalType = gH323ep.termType;
pMasterSlave->statusDeterminationNumber =
ooGenerateStatusDeterminationNumber();
call->statusDeterminationNumber = pMasterSlave->statusDeterminationNumber;
OOTRACEDBGA3("Built MasterSlave Determination (%s, %s)\n", call->callType,
call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue MasterSlaveDetermination message to"
" outbound queue. (%s, %s)\n", call->callType,
call->callToken);
}
else
call->masterSlaveState = OO_MasterSlave_DetermineSent;
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooSendMasterSlaveDeterminationAck(OOH323CallData* call,
char * status)
{
int ret=0;
H245ResponseMessage * response=NULL;
H245Message *ph245msg=NULL;
/* OOCTXT *pctxt=&gH323ep.msgctxt; */
OOCTXT *pctxt=call->msgctxt;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_response);
if(ret != OO_OK)
{
OOTRACEERR3("Error:H245 message creation failed for - MasterSlave "
"Determination Ack (%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOMasterSlaveAck;
response = ph245msg->h245Msg.u.response;
memset(response, 0, sizeof(H245ResponseMessage));
response->t = T_H245ResponseMessage_masterSlaveDeterminationAck;
response->u.masterSlaveDeterminationAck = (H245MasterSlaveDeterminationAck*)
ASN1MALLOC(pctxt, sizeof(H245MasterSlaveDeterminationAck));
memset(response->u.masterSlaveDeterminationAck, 0,
sizeof(H245MasterSlaveDeterminationAck));
if(!strcmp("master", status))
response->u.masterSlaveDeterminationAck->decision.t =
T_H245MasterSlaveDeterminationAck_decision_master;
else
response->u.masterSlaveDeterminationAck->decision.t =
T_H245MasterSlaveDeterminationAck_decision_slave;
OOTRACEDBGA3("Built MasterSlave determination Ack (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue MasterSlaveDeterminationAck message"
" to outbound queue. (%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message(call, ph245msg);
call->msAckStatus = OO_msAck_localSent;
return ret;
}
int ooSendMasterSlaveDeterminationReject (OOH323CallData* call)
{
int ret=0;
H245ResponseMessage* response=NULL;
H245Message *ph245msg=NULL;
/* OOCTXT *pctxt=&gH323ep.msgctxt; */
OOCTXT *pctxt=call->msgctxt;
ret = ooCreateH245Message
(call, &ph245msg, T_H245MultimediaSystemControlMessage_response);
if (ret != OO_OK) {
OOTRACEERR3("Error:H245 message creation failed for - MasterSlave "
"Determination Reject (%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOMasterSlaveReject;
response = ph245msg->h245Msg.u.response;
response->t = T_H245ResponseMessage_masterSlaveDeterminationReject;
response->u.masterSlaveDeterminationReject =
(H245MasterSlaveDeterminationReject*)
memAlloc (pctxt, sizeof(H245MasterSlaveDeterminationReject));
response->u.masterSlaveDeterminationReject->cause.t =
T_H245MasterSlaveDeterminationReject_cause_identicalNumbers;
OOTRACEDBGA3 ("Built MasterSlave determination reject (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg (call, ph245msg);
if (ret != OO_OK) {
OOTRACEERR3
("Error:Failed to enqueue MasterSlaveDeterminationReject "
"message to outbound queue.(%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message (call, ph245msg);
return ret;
}
int ooSendMasterSlaveDeterminationRelease(OOH323CallData * call)
{
int ret=0;
H245IndicationMessage* indication=NULL;
H245Message *ph245msg=NULL;
/* OOCTXT *pctxt=&gH323ep.msgctxt; */
OOCTXT *pctxt=call->msgctxt;
ret = ooCreateH245Message
(call, &ph245msg, T_H245MultimediaSystemControlMessage_indication);
if (ret != OO_OK) {
OOTRACEERR3("Error:H245 message creation failed for - MasterSlave "
"Determination Release (%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOMasterSlaveRelease;
indication = ph245msg->h245Msg.u.indication;
indication->t = T_H245IndicationMessage_masterSlaveDeterminationRelease;
indication->u.masterSlaveDeterminationRelease =
(H245MasterSlaveDeterminationRelease*)
memAlloc (pctxt, sizeof(H245MasterSlaveDeterminationRelease));
if(!indication->u.masterSlaveDeterminationRelease)
{
OOTRACEERR3("Error: Failed to allocate memory for MSDRelease message."
" (%s, %s)\n", call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
OOTRACEDBGA3 ("Built MasterSlave determination Release (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg (call, ph245msg);
if (ret != OO_OK) {
OOTRACEERR3
("Error:Failed to enqueue MasterSlaveDeterminationRelease "
"message to outbound queue.(%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message (call, ph245msg);
return ret;
}
int ooHandleMasterSlaveReject
(OOH323CallData *call, H245MasterSlaveDeterminationReject* reject)
{
if(call->msdRetries < DEFAULT_MAX_RETRIES)
{
call->msdRetries++;
OOTRACEDBGA3("Retrying MasterSlaveDetermination. (%s, %s)\n",
call->callType, call->callToken);
call->masterSlaveState = OO_MasterSlave_Idle;
ooSendMasterSlaveDetermination(call);
return OO_OK;
}
OOTRACEERR3("Error:Failed to complete MasterSlaveDetermination - "
"Ending call. (%s, %s)\n", call->callType, call->callToken);
if(call->callState < OO_CALL_CLEAR)
{
call->callEndReason = OO_REASON_LOCAL_CLEARED;
call->callState = OO_CALL_CLEAR;
}
return OO_OK;
}
/* handling requestmode routines */
int ooSendRequestModeAck(OOH323CallData* call,
H245SequenceNumber sequenceNumber)
{
int ret=0;
H245ResponseMessage* response=NULL;
H245Message *ph245msg=NULL;
OOCTXT *pctxt=call->msgctxt;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_response);
if(ret != OO_OK)
{
OOTRACEERR3("Error:H245 message creation failed for - RequestMode "
"Ack (%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OORequestModeAck;
response = ph245msg->h245Msg.u.response;
memset(response, 0, sizeof(H245ResponseMessage));
response->t = T_H245ResponseMessage_requestModeAck;
response->u.requestModeAck = (H245RequestModeAck *)
ASN1MALLOC(pctxt, sizeof(H245RequestModeAck));
memset(response->u.requestModeAck, 0,
sizeof(H245RequestModeAck));
response->u.requestModeAck->sequenceNumber = sequenceNumber;
response->u.requestModeAck->response.t =
T_H245RequestModeAck_response_willTransmitMostPreferredMode;
OOTRACEDBGA3("Built RequestModeAck (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue RequestModeAck message"
" to outbound queue. (%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooSendRequestModeReject(OOH323CallData* call,
H245SequenceNumber sequenceNumber)
{
int ret=0;
H245ResponseMessage* response=NULL;
H245Message *ph245msg=NULL;
OOCTXT *pctxt=call->msgctxt;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_response);
if(ret != OO_OK)
{
OOTRACEERR3("Error:H245 message creation failed for - RequstMode "
"Reject (%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OORequestModeReject;
response = ph245msg->h245Msg.u.response;
memset(response, 0, sizeof(H245ResponseMessage));
response->t = T_H245ResponseMessage_requestModeReject;
response->u.requestModeReject = (H245RequestModeReject *)
ASN1MALLOC(pctxt, sizeof(H245RequestModeReject));
memset(response->u.requestModeReject, 0,
sizeof(H245RequestModeReject));
response->u.requestModeReject->sequenceNumber = sequenceNumber;
response->u.requestModeReject->cause.t =
T_H245RequestModeReject_cause_modeUnavailable;
OOTRACEDBGA3("Built RequestModeReject (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue RequestModeReject message"
" to outbound queue. (%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooSendRequestMode(OOH323CallData* call,
int isT38Mode)
{
int ret=0;
H245RequestMessage *request;
H245Message *ph245msg=NULL;
OOCTXT *pctxt=call->msgctxt;
H245ModeDescription pModeDesc;
H245ModeElement pModeElem;
if (isT38Mode && !OO_TESTFLAG(call->flags, OO_M_T38SUPPORTED)) /* t38 req but we dont support */
return OO_OK;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_request);
if(ret != OO_OK)
{
OOTRACEERR3("Error:H245 message creation failed for - RequstMode "
"(%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OORequestMode;
request = ph245msg->h245Msg.u.request;
memset(request, 0, sizeof(H245RequestMessage));
request->t = T_H245RequestMessage_requestMode;
request->u.requestMode = (H245RequestMode *)
ASN1MALLOC(pctxt, sizeof(H245RequestMode));
memset(request->u.requestMode, 0,
sizeof(H245RequestMode));
call->requestSequence++;
call->reqFlags = (isT38Mode) ? OO_M_DATASESSION : OO_M_AUDIOSESSION;
request->u.requestMode->sequenceNumber = call->requestSequence;
memset(&pModeElem, 0, sizeof(pModeElem));
memset(&pModeDesc, 0, sizeof(pModeDesc));
dListInit(&(request->u.requestMode->requestedModes));
dListInit(&pModeDesc);
if (isT38Mode) {
pModeElem.type.t = T_H245ModeElementType_dataMode;
pModeElem.type.u.dataMode = (H245DataMode *) memAllocZ(pctxt, sizeof(H245DataMode));
pModeElem.type.u.dataMode->bitRate = 144;
if (!ooCreateT38ApplicationData(pctxt,&(pModeElem.type.u.dataMode->application))) {
OOTRACEERR3("Error:Memory - ooCapabilityCreateT38Capability - (%s, %s)\n",
call->callType,
call->callToken);
}
} else {
pModeElem.type.t = T_H245ModeElementType_audioMode;
pModeElem.type.u.audioMode = (H245AudioMode *) memAllocZ(pctxt, sizeof(H245AudioMode));
pModeElem.type.u.audioMode->t = T_H245AudioMode_genericAudioMode;
pModeElem.type.u.audioMode->u.genericAudioMode = (H245GenericCapability *)
memAllocZ(pctxt, sizeof(H245GenericCapability));
pModeElem.type.u.audioMode->u.genericAudioMode->capabilityIdentifier.t =
T_H245CapabilityIdentifier_domainBased;
pModeElem.type.u.audioMode->u.genericAudioMode->capabilityIdentifier.u.domainBased =
"H.323";
pModeElem.type.u.audioMode->u.genericAudioMode->m.maxBitRatePresent = TRUE;
pModeElem.type.u.audioMode->u.genericAudioMode->maxBitRate = 144;
}
dListAppend(pctxt, &pModeDesc, &pModeElem);
dListAppend(pctxt, &(request->u.requestMode->requestedModes), &pModeDesc);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue RequestMode message"
" to outbound queue. (%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
void ooOnReceivedRequestModeAck(OOH323CallData* call, H245RequestModeAck * requestModeAck)
{
int t38mode;
if (!call->reqFlags) return;
if (OO_TESTFLAG(call->reqFlags, OO_M_AUDIOSESSION)) {
OO_SETFLAG(call->flags, OO_M_AUDIOSESSION);
OO_CLRFLAG(call->flags, OO_M_DATASESSION);
t38mode = 0;
} else {
OO_CLRFLAG(call->flags, OO_M_AUDIOSESSION);
OO_SETFLAG(call->flags, OO_M_DATASESSION);
t38mode = 1;
}
call->reqFlags = 0; /* don't handle duplicate ack packet */
ooCloseAllLogicalChannels(call, "transmit");
if(gH323ep.h323Callbacks.onModeChanged) {
OOTRACEDBGA3("Handle RequestModeAck: (%s, %s), calling "
"callback onModeChanged\n", call->callType, call->callToken);
gH323ep.h323Callbacks.onModeChanged(call, t38mode);
}
}
int ooHandleRequestMode(OOH323CallData* call,
H245RequestMode *requestMode)
{
H245ModeDescription** pModeRef;
H245ModeElement** pModeElem;
H245ModeElementType* pMode;
pModeRef = (H245ModeDescription**)dListFindByIndex(&requestMode->requestedModes, 0);
pModeElem = (H245ModeElement **) dListFindByIndex(*pModeRef, 0);
pMode = &((*pModeElem)->type);
OOTRACEDBGA5("Handle RequestMode: "
" modetype: %d/%d for (%s, %s)\n", pMode->t, pMode->u.dataMode->application.t,
call->callType,
call->callToken);
switch (pMode->t) {
case T_H245ModeElementType_dataMode:
if (pMode->u.dataMode->application.t == T_H245DataMode_application_t38fax &&
OO_TESTFLAG(call->flags, OO_M_T38SUPPORTED)) {
if (ooSendRequestModeAck(call, requestMode->sequenceNumber) == OO_OK &&
OO_TESTFLAG(call->flags, OO_M_AUDIOSESSION)) {
OO_CLRFLAG(call->flags, OO_M_AUDIOSESSION);
OO_SETFLAG(call->flags, OO_M_DATASESSION);
if(gH323ep.h323Callbacks.onModeChanged) {
OOTRACEDBGA3("Handle RequestMode: (%s, %s), calling "
"callback onModeChanged\n", call->callType, call->callToken);
gH323ep.h323Callbacks.onModeChanged(call, 1);
}
}
} else {
ooSendRequestModeReject(call, requestMode->sequenceNumber);
}
break;
case T_H245ModeElementType_audioMode:
if (ooSendRequestModeAck(call, requestMode->sequenceNumber) == OO_OK &&
OO_TESTFLAG(call->flags, OO_M_DATASESSION)) {
OO_CLRFLAG(call->flags, OO_M_DATASESSION);
OO_SETFLAG(call->flags, OO_M_AUDIOSESSION);
if(gH323ep.h323Callbacks.onModeChanged) {
OOTRACEDBGA3("Handle RequestMode: (%s, %s), calling "
"callback onModeChanged\n", call->callType, call->callToken);
gH323ep.h323Callbacks.onModeChanged(call, 0);
}
}
break;
default:
;
}
return OO_OK;
}
int ooHandleOpenLogicalChannel(OOH323CallData* call,
H245OpenLogicalChannel *olc)
{
H245OpenLogicalChannel_forwardLogicalChannelParameters *flcp =
&(olc->forwardLogicalChannelParameters);
#if 0
if(!call->logicalChans)
ooOpenLogicalChannels(call);
#endif
/* Check whether channel type is supported. Only supported channel
type for now is g711ulaw audio channel.
*/
switch(flcp->dataType.t)
{
case T_H245DataType_nonStandard:
OOTRACEWARN3("Warn:Media channel data type "
"'T_H245DataType_nonStandard' not supported (%s, %s)\n",
call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
break;
case T_H245DataType_nullData:
OOTRACEWARN3("Warn:Media channel data type "
"'T_H245DataType_nullData' not supported (%s, %s)\n",
call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
break;
case T_H245DataType_videoData:
case T_H245DataType_audioData:
case T_H245DataType_data:
ooHandleOpenLogicalChannel_helper(call, olc);
break;
case T_H245DataType_encryptionData:
OOTRACEWARN3("Warn:Media channel data type "
"'T_H245DataType_encryptionData' not supported (%s, %s)\n",
call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
break;
case T_H245DataType_h235Control:
OOTRACEWARN3("Warn:Media channel data type "
"'T_H245DataType_h235Control' not supported (%s, %s)\n",
call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
break;
case T_H245DataType_h235Media:
OOTRACEWARN3("Warn:Media channel data type "
"'T_H245DataType_h235Media' not supported (%s, %s)\n",
call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
break;
case T_H245DataType_multiplexedStream:
OOTRACEWARN3("Warn:Media channel data type "
"'T_H245DataType_multiplexedStream' not supported(%s, %s)\n",
call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
break;
case T_H245DataType_redundancyEncoding:
OOTRACEWARN3("Warn:Media channel data type "
"'T_H245DataType_redundancyEncoding' not supported (%s, %s)\n",
call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
break;
case T_H245DataType_multiplePayloadStream:
OOTRACEWARN3("Warn:Media channel data type "
"'T_H245DataType_multiplePayloadStream' not supported (%s, %s)\n",
call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
break;
case T_H245DataType_fec:
OOTRACEWARN3("Warn:Media channel data type 'T_H245DataType_fec' not "
"supported (%s, %s)\n", call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
break;
default:
OOTRACEERR3("ERROR:Unknown media channel data type (%s, %s)\n",
call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
}
return OO_OK;
}
/*TODO: Need to clean logical channel in case of failure after creating one */
int ooHandleOpenLogicalChannel_helper(OOH323CallData *call,
H245OpenLogicalChannel*olc)
{
int ret=0;
H245Message *ph245msg=NULL;
H245ResponseMessage *response;
H245OpenLogicalChannelAck *olcAck;
ooH323EpCapability *epCap=NULL;
H245H2250LogicalChannelAckParameters *h2250lcap=NULL;
OOCTXT *pctxt;
H245UnicastAddress *unicastAddrs, *unicastAddrs1;
H245UnicastAddress_iPAddress *iPAddress = NULL, *iPAddress1 = NULL;
H245UnicastAddress_iP6Address *iP6Address = NULL, *iP6Address1 = NULL;
ooLogicalChannel *pLogicalChannel = NULL;
H245H2250LogicalChannelParameters *h2250lcp=NULL;
H245OpenLogicalChannel_forwardLogicalChannelParameters *flcp =
&(olc->forwardLogicalChannelParameters);
if(!flcp || flcp->multiplexParameters.t != T_H245OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters)
{
OOTRACEERR3("Error:ooHandleOpenLogicalChannel_helper - invalid forward "
"logical channel parameters. (%s, %s)\n", call->callType,
call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_unspecified);
return OO_FAILED;
}
h2250lcp = flcp->multiplexParameters.u.h2250LogicalChannelParameters;
if(!(epCap=ooIsDataTypeSupported(call, &flcp->dataType, OORX)))
{
OOTRACEERR3("ERROR:HandleOpenLogicalChannel_helper - capability not "
"supported (%s, %s)\n", call->callType, call->callToken);
ooSendOpenLogicalChannelReject(call, olc->forwardLogicalChannelNumber,
T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported);
return OO_FAILED;
}
/* Generate an Ack for the open channel request */
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_response);
if(ret != OO_OK)
{
OOTRACEERR3("Error: H245 message creation failed for - "
"OpenLogicalChannel Ack (%s, %s)\n", call->callType,
call->callToken);
memFreePtr(call->pctxt, epCap);
epCap = NULL;
return OO_FAILED;
}
ph245msg->msgType = OOOpenLogicalChannelAck;
ph245msg->logicalChannelNo = olc->forwardLogicalChannelNumber;
response = ph245msg->h245Msg.u.response;
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
memset(response, 0, sizeof(H245ResponseMessage));
response->t = T_H245ResponseMessage_openLogicalChannelAck;
response->u.openLogicalChannelAck = (H245OpenLogicalChannelAck*)
memAlloc(pctxt, sizeof(H245OpenLogicalChannelAck));
olcAck = response->u.openLogicalChannelAck;
memset(olcAck, 0, sizeof(H245OpenLogicalChannelAck));
olcAck->forwardLogicalChannelNumber = olc->forwardLogicalChannelNumber;
olcAck->m.forwardMultiplexAckParametersPresent = 1;
olcAck->forwardMultiplexAckParameters.t =
T_H245OpenLogicalChannelAck_forwardMultiplexAckParameters_h2250LogicalChannelAckParameters;
olcAck->forwardMultiplexAckParameters.u.h2250LogicalChannelAckParameters =
(H245H2250LogicalChannelAckParameters*)ASN1MALLOC(pctxt,
sizeof(H245H2250LogicalChannelAckParameters));
h2250lcap =
olcAck->forwardMultiplexAckParameters.u.h2250LogicalChannelAckParameters;
memset(h2250lcap, 0, sizeof(H245H2250LogicalChannelAckParameters));
h2250lcap->m.mediaChannelPresent = 1;
h2250lcap->m.mediaControlChannelPresent = 1;
h2250lcap->m.sessionIDPresent = 1;
if(h2250lcp->sessionID == 0)
h2250lcap->sessionID = ooCallGenerateSessionID(call, epCap->capType, "receive");
else
h2250lcap->sessionID = h2250lcp->sessionID;
h2250lcap->mediaChannel.t =
T_H245TransportAddress_unicastAddress;
h2250lcap->mediaChannel.u.unicastAddress = (H245UnicastAddress*)
ASN1MALLOC(pctxt, sizeof(H245UnicastAddress));
unicastAddrs = h2250lcap->mediaChannel.u.unicastAddress;
memset(unicastAddrs, 0, sizeof(H245UnicastAddress));
if (call->versionIP == 6) {
unicastAddrs->t = T_H245UnicastAddress_iP6Address;
unicastAddrs->u.iP6Address = (H245UnicastAddress_iP6Address*)
memAlloc(pctxt, sizeof(H245UnicastAddress_iP6Address));
iP6Address = unicastAddrs->u.iP6Address;
memset(iP6Address, 0, sizeof(H245UnicastAddress_iP6Address));
} else {
unicastAddrs->t = T_H245UnicastAddress_iPAddress;
unicastAddrs->u.iPAddress = (H245UnicastAddress_iPAddress*)
memAlloc(pctxt, sizeof(H245UnicastAddress_iPAddress));
iPAddress = unicastAddrs->u.iPAddress;
memset(iPAddress, 0, sizeof(H245UnicastAddress_iPAddress));
}
pLogicalChannel = ooAddNewLogicalChannel(call,
olc->forwardLogicalChannelNumber, h2250lcap->sessionID,
"receive", epCap);
if(!pLogicalChannel)
{
OOTRACEERR3("ERROR:Failed to add new logical channel entry to call "
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
if (call->versionIP == 6) {
inet_pton(AF_INET6, pLogicalChannel->localIP, iP6Address->network.data);
iP6Address->network.numocts = 16;
iP6Address->tsapIdentifier = pLogicalChannel->localRtpPort;
} else {
inet_pton(AF_INET, pLogicalChannel->localIP, iPAddress->network.data);
iPAddress->network.numocts = 4;
iPAddress->tsapIdentifier = pLogicalChannel->localRtpPort;
}
/* media contrcol channel */
h2250lcap->mediaControlChannel.t =
T_H245TransportAddress_unicastAddress;
h2250lcap->mediaControlChannel.u.unicastAddress = (H245UnicastAddress*)
ASN1MALLOC(pctxt, sizeof(H245UnicastAddress));
unicastAddrs1 = h2250lcap->mediaControlChannel.u.unicastAddress;
memset(unicastAddrs1, 0, sizeof(H245UnicastAddress));
if (call->versionIP == 6) {
unicastAddrs1->t = T_H245UnicastAddress_iP6Address;
unicastAddrs1->u.iP6Address = (H245UnicastAddress_iP6Address*)
memAlloc(pctxt, sizeof(H245UnicastAddress_iP6Address));
iP6Address1 = unicastAddrs1->u.iP6Address;
memset(iP6Address1, 0, sizeof(H245UnicastAddress_iP6Address));
inet_pton(AF_INET6, pLogicalChannel->localIP, iP6Address1->network.data);
iP6Address1->network.numocts = 16;
iP6Address1->tsapIdentifier = pLogicalChannel->localRtcpPort;
} else {
unicastAddrs1->t = T_H245UnicastAddress_iPAddress;
unicastAddrs1->u.iPAddress = (H245UnicastAddress_iPAddress*)
memAlloc(pctxt, sizeof(H245UnicastAddress_iPAddress));
iPAddress1 = unicastAddrs1->u.iPAddress;
memset(iPAddress1, 0, sizeof(H245UnicastAddress_iPAddress));
inet_pton(AF_INET, pLogicalChannel->localIP, iPAddress1->network.data);
iPAddress1->network.numocts = 4;
iPAddress1->tsapIdentifier = pLogicalChannel->localRtcpPort;
}
OOTRACEDBGA3("Built OpenLogicalChannelAck (%s, %s)\n", call->callType,
call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue OpenLogicalChannelAck message to "
"outbound queue. (%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message(call, ph245msg);
if(epCap->startReceiveChannel)
{
epCap->startReceiveChannel(call, pLogicalChannel);
OOTRACEINFO6("Receive channel of type %s started at %s:%d(%s, %s)\n",
ooGetCapTypeText(epCap->cap), pLogicalChannel->localIP,
pLogicalChannel->localRtpPort, call->callType,
call->callToken);
}
else{
OOTRACEERR3("ERROR:No callback registered to start receive audio "
"channel (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
pLogicalChannel->state = OO_LOGICALCHAN_ESTABLISHED;
return ret;
}
int ooSendOpenLogicalChannelReject
(OOH323CallData *call, ASN1UINT channelNum, ASN1UINT cause)
{
int ret=0;
H245ResponseMessage* response=NULL;
H245Message *ph245msg=NULL;
/* OOCTXT *pctxt=&gH323ep.msgctxt; */
OOCTXT *pctxt=call->msgctxt;
ret = ooCreateH245Message
(call, &ph245msg, T_H245MultimediaSystemControlMessage_response);
if (ret != OO_OK) {
OOTRACEERR3("Error:H245 message creation failed for - OpenLogicalChannel"
"Reject (%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOOpenLogicalChannelReject;
response = ph245msg->h245Msg.u.response;
response->t = T_H245ResponseMessage_openLogicalChannelReject;
response->u.openLogicalChannelReject =
(H245OpenLogicalChannelReject*)
memAlloc (pctxt, sizeof(H245OpenLogicalChannelReject));
if(!response->u.openLogicalChannelReject)
{
OOTRACEERR3("Error: Failed to allocate memory for OpenLogicalChannel"
"Reject message. (%s, %s)\n", call->callType,
call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
response->u.openLogicalChannelReject->forwardLogicalChannelNumber =
channelNum;
response->u.openLogicalChannelReject->cause.t = cause;
OOTRACEDBGA3 ("Built OpenLogicalChannelReject (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg (call, ph245msg);
if (ret != OO_OK) {
OOTRACEERR3
("Error:Failed to enqueue OpenLogicalChannelReject "
"message to outbound queue.(%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message (call, ph245msg);
return ret;
}
int ooOnReceivedOpenLogicalChannelAck(OOH323CallData *call,
H245OpenLogicalChannelAck *olcAck)
{
char remoteip[2+8*4+7];
regmatch_t pmatch[1];
ooLogicalChannel *pLogicalChannel;
H245H2250LogicalChannelAckParameters *h2250lcap;
H245UnicastAddress *unicastAddr;
H245UnicastAddress_iPAddress *iPAddress = NULL;
H245UnicastAddress_iP6Address *iP6Address = NULL;
H245UnicastAddress *unicastAddr1;
H245UnicastAddress_iPAddress *iPAddress1 = NULL;
H245UnicastAddress_iP6Address *iP6Address1 = NULL;
if(!((olcAck->m.forwardMultiplexAckParametersPresent == 1) &&
(olcAck->forwardMultiplexAckParameters.t ==
T_H245OpenLogicalChannelAck_forwardMultiplexAckParameters_h2250LogicalChannelAckParameters)))
{
OOTRACEERR3("Error: Processing open logical channel ack - LogicalChannel"
"Ack parameters absent (%s, %s)\n", call->callType,
call->callToken);
return OO_OK; /* should send CloseLogicalChannel request */
}
h2250lcap =
olcAck->forwardMultiplexAckParameters.u.h2250LogicalChannelAckParameters;
/* Extract media channel address */
if(h2250lcap->m.mediaChannelPresent != 1)
{
OOTRACEERR3("Error: Processing OpenLogicalChannelAck - media channel "
"absent (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
if(h2250lcap->mediaChannel.t != T_H245TransportAddress_unicastAddress)
{
OOTRACEERR3("Error: Processing OpenLogicalChannelAck - media channel "
"address type is not unicast (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
unicastAddr = h2250lcap->mediaChannel.u.unicastAddress;
if (call->versionIP == 6) {
if(unicastAddr->t != T_H245UnicastAddress_iP6Address)
{
OOTRACEERR3("Error: Processing OpenLogicalChannelAck - media channel "
"address type is not IP6 (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
iP6Address = unicastAddr->u.iP6Address;
inet_ntop(AF_INET6, iP6Address->network.data, remoteip, sizeof(remoteip));
} else {
if(unicastAddr->t != T_H245UnicastAddress_iPAddress)
{
OOTRACEERR3("Error: Processing OpenLogicalChannelAck - media channel "
"address type is not IP (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
iPAddress = unicastAddr->u.iPAddress;
inet_ntop(AF_INET, iPAddress->network.data, remoteip, sizeof(remoteip));
}
/* Extract media control channel address */
if(h2250lcap->m.mediaControlChannelPresent == 1) {
if(h2250lcap->mediaControlChannel.t !=
T_H245TransportAddress_unicastAddress)
{
OOTRACEERR3("Error: Processing OpenLogicalChannelAck - media control "
"channel address type is not unicast (%s, %s)\n",
call->callType, call->callToken);
return OO_FAILED;
}
unicastAddr1 = h2250lcap->mediaControlChannel.u.unicastAddress;
if (call->versionIP == 6) {
if(unicastAddr1->t != T_H245UnicastAddress_iP6Address) {
OOTRACEERR3("Error: Processing OpenLogicalChannelAck - media control "
"channel address type is not IP6 (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
iP6Address1 = unicastAddr1->u.iP6Address;
} else {
if(unicastAddr1->t != T_H245UnicastAddress_iPAddress) {
OOTRACEERR3("Error: Processing OpenLogicalChannelAck - media control "
"channel address type is not IP (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
iPAddress1 = unicastAddr1->u.iPAddress;
}
} else {
OOTRACEDBGA3("Warning: Processing OpenLogicalChannelAck - Missing media "
"control channel (%s, %s)\n", call->callType, call->callToken);
}
/* Set remote destination address for rtp session */
// strcpy(call->remoteIP, remoteip);
/* Start channel here */
pLogicalChannel = ooFindLogicalChannelByLogicalChannelNo(call,olcAck->forwardLogicalChannelNumber);
if(!pLogicalChannel)
{
OOTRACEERR4("ERROR:Logical channel %d not found in the channel list for "
"call (%s, %s)\n", olcAck->forwardLogicalChannelNumber,
call->callType, call->callToken);
return OO_FAILED;
}
/* Update session id if we were waiting for remote to assign one and remote
did assign one. */
if(pLogicalChannel->sessionID == 0 && h2250lcap->m.sessionIDPresent)
pLogicalChannel->sessionID = h2250lcap->sessionID;
/* Populate ports &ip for channel */
if (call->rtpMaskStr[0]) {
if (regexec(&call->rtpMask->regex, remoteip, 1, pmatch, 0)) {
OOTRACEERR5("ERROR:H245 Address is not matched with filter %s/%s"
"(%s, %s)\n", remoteip, call->rtpMaskStr, call->callType, call->callToken);
return OO_FAILED;
}
}
strcpy(pLogicalChannel->remoteIP, remoteip);
if (call->versionIP == 6) {
pLogicalChannel->remoteMediaPort = iP6Address->tsapIdentifier;
if (iP6Address1)
pLogicalChannel->remoteMediaControlPort = iP6Address1->tsapIdentifier;
} else {
pLogicalChannel->remoteMediaPort = iPAddress->tsapIdentifier;
if (iPAddress1)
pLogicalChannel->remoteMediaControlPort = iPAddress1->tsapIdentifier;
}
if(pLogicalChannel->chanCap->startTransmitChannel)
{
pLogicalChannel->chanCap->startTransmitChannel(call, pLogicalChannel);
OOTRACEINFO4("TransmitLogical Channel of type %s started (%s, %s)\n",
ooGetCapTypeText(pLogicalChannel->chanCap->cap),
call->callType, call->callToken);
}
else{
OOTRACEERR3("ERROR:No callback registered for starting transmit channel "
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
pLogicalChannel->state = OO_LOGICALCHAN_ESTABLISHED;
return OO_OK;
}
int ooOnReceivedOpenLogicalChannelRejected(OOH323CallData *call,
H245OpenLogicalChannelReject *olcReject)
{
switch(olcReject->cause.t)
{
case T_H245OpenLogicalChannelReject_cause_unspecified:
OOTRACEINFO4("Open logical channel %d rejected - unspecified (%s, %s)\n",
olcReject->forwardLogicalChannelNumber, call->callType,
call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_unsuitableReverseParameters:
OOTRACEINFO4("Open logical channel %d rejected - "
"unsuitableReverseParameters (%s, %s)\n",
olcReject->forwardLogicalChannelNumber, call->callType,
call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_dataTypeNotSupported:
OOTRACEINFO4("Open logical channel %d rejected - dataTypeNotSupported"
"(%s, %s)\n", olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_dataTypeNotAvailable:
OOTRACEINFO4("Open logical channel %d rejected - dataTypeNotAvailable"
"(%s, %s)\n", olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_unknownDataType:
OOTRACEINFO4("Open logical channel %d rejected - unknownDataType"
"(%s, %s)\n", olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_dataTypeALCombinationNotSupported:
OOTRACEINFO4("Open logical channel %d rejected - "
"dataTypeALCombinationNotSupported(%s, %s)\n",
olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_multicastChannelNotAllowed:
OOTRACEINFO4("Open logical channel %d rejected - "
"multicastChannelNotAllowed (%s, %s)\n",
olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_insufficientBandwidth:
OOTRACEINFO4("Open logical channel %d rejected - insufficientBandwidth"
"(%s, %s)\n", olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_separateStackEstablishmentFailed:
OOTRACEINFO4("Open logical channel %d rejected - "
"separateStackEstablishmentFailed (%s, %s)\n",
olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_invalidSessionID:
OOTRACEINFO4("Open logical channel %d rejected - "
"invalidSessionID (%s, %s)\n",
olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_masterSlaveConflict:
OOTRACEINFO4("Open logical channel %d rejected - "
"invalidSessionID (%s, %s)\n",
olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_waitForCommunicationMode:
OOTRACEINFO4("Open logical channel %d rejected - "
"waitForCommunicationMode (%s, %s)\n",
olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_invalidDependentChannel:
OOTRACEINFO4("Open logical channel %d rejected - "
"invalidDependentChannel (%s, %s)\n",
olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
case T_H245OpenLogicalChannelReject_cause_replacementForRejected:
OOTRACEINFO4("Open logical channel %d rejected - "
"replacementForRejected (%s, %s)\n",
olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
break;
default:
OOTRACEERR4("Error: OpenLogicalChannel %d rejected - "
"invalid cause(%s, %s)\n",
olcReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
}
if(call->callState < OO_CALL_CLEAR)
{
call->callState = OO_CALL_CLEAR;
call->callEndReason = OO_REASON_LOCAL_CLEARED;
}
return OO_OK;
}
/**
* Currently only disconnect end session command is supported.
**/
int ooSendEndSessionCommand(OOH323CallData *call)
{
int ret;
H245CommandMessage * command;
OOCTXT *pctxt;
H245Message *ph245msg=NULL;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_command);
if(ret != OO_OK)
{
OOTRACEERR3("Error: H245 message creation failed for - End Session "
"Command (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOEndSessionCommand;
command = ph245msg->h245Msg.u.command;
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
memset(command, 0, sizeof(H245CommandMessage));
command->t = T_H245CommandMessage_endSessionCommand;
command->u.endSessionCommand = (H245EndSessionCommand*) ASN1MALLOC(pctxt,
sizeof(H245EndSessionCommand));
memset(command->u.endSessionCommand, 0, sizeof(H245EndSessionCommand));
command->u.endSessionCommand->t = T_H245EndSessionCommand_disconnect;
OOTRACEDBGA3("Built EndSession Command (%s, %s)\n", call->callType,
call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue EndSession message to outbound "
"queue.(%s, %s)\n", call->callType, call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooHandleH245Command(OOH323CallData *call,
H245CommandMessage *command)
{
ASN1UINT i;
DListNode *pNode = NULL;
OOTimer *pTimer = NULL;
OOTRACEDBGC3("Handling H.245 command message. (%s, %s)\n", call->callType,
call->callToken);
switch(command->t)
{
case T_H245CommandMessage_endSessionCommand:
OOTRACEINFO3("Received EndSession command (%s, %s)\n",
call->callType, call->callToken);
if(call->h245SessionState == OO_H245SESSION_ENDSENT)
{
/* Disable Session timer */
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if(((ooTimerCallback*)pTimer->cbData)->timerType &
OO_SESSION_TIMER)
{
ASN1MEMFREEPTR(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted Session Timer. (%s, %s)\n",
call->callType, call->callToken);
break;
}
}
ooCloseH245Connection(call);
if (call->callState < OO_CALL_CLEAR)
call->callState = OO_CALL_CLEAR;
}
else{
call->h245SessionState = OO_H245SESSION_ENDRECVD;
if(call->logicalChans)
{
OOTRACEINFO3("In response to received EndSessionCommand - "
"Clearing all logical channels. (%s, %s)\n",
call->callType, call->callToken);
ooClearAllLogicalChannels(call);
}
ooSendEndSessionCommand(call);
if (call->callState < OO_CALL_CLEAR)
call->callState = OO_CALL_CLEAR;
}
break;
case T_H245CommandMessage_sendTerminalCapabilitySet:
OOTRACEWARN3("Warning: Received command Send terminal capability set "
"- Not handled (%s, %s)\n", call->callType,
call->callToken);
break;
case T_H245CommandMessage_flowControlCommand:
OOTRACEWARN3("Warning: Flow control command received - Not handled "
"(%s, %s)\n", call->callType, call->callToken);
break;
default:
OOTRACEWARN3("Warning: Unhandled H245 command message received "
"(%s, %s)\n", call->callType, call->callToken);
}
OOTRACEDBGC3("Handling H.245 command message done. (%s, %s)\n",
call->callType, call->callToken);
return OO_OK;
}
int ooOnReceivedTerminalCapabilitySetAck(OOH323CallData* call)
{
int ret = OO_OK;
call->localTermCapState = OO_LocalTermCapSetAckRecvd;
if(call->remoteTermCapState != OO_RemoteTermCapSetAckSent)
return OO_OK;
if(call->masterSlaveState == OO_MasterSlave_Idle) {
ret = ooSendMasterSlaveDetermination(call);
if(ret != OO_OK) {
OOTRACEERR3("ERROR:Sending Master-slave determination message "
"(%s, %s)\n", call->callType, call->callToken);
return ret;
}
}
if((call->masterSlaveState == OO_MasterSlave_Master ||
call->masterSlaveState == OO_MasterSlave_Slave) &&
(call->msAckStatus == OO_msAck_remoteReceived))
{
if(gH323ep.h323Callbacks.openLogicalChannels)
gH323ep.h323Callbacks.openLogicalChannels(call);
/* ooSendStatusInquiry(call); */
if(!ooGetTransmitLogicalChannel(call))
ooOpenLogicalChannels(call);
#if 0
if(!call->logicalChans){
if(!gH323ep.h323Callbacks.openLogicalChannels)
ooOpenLogicalChannels(call);
else
gH323ep.h323Callbacks.openLogicalChannels(call);
}
#endif
}
return OO_OK;
}
int ooCloseAllLogicalChannels(OOH323CallData *call, char* dir)
{
ooLogicalChannel *temp;
temp = call->logicalChans;
while(temp)
{
if(temp->state == OO_LOGICALCHAN_ESTABLISHED &&
(dir == NULL || !strcmp(temp->dir,dir)))
{
/* Sending closelogicalchannel only for outgoing channels*/
if(!strcmp(temp->dir, "transmit"))
{
ooSendCloseLogicalChannel(call, temp);
}
else{
ooSendRequestCloseLogicalChannel(call, temp);
}
}
temp = temp->next;
}
return OO_OK;
}
int ooUpdateAllLogicalChannels(OOH323CallData *call, char* localIP, int port)
{
ooLogicalChannel *temp;
OOMediaInfo *pMediaInfo = NULL;
char *lIP = localIP;
OOBOOL eTCS = FALSE;
if (!lIP || !lIP[0]) {
lIP = call->localIP;
}
/* close all log chans */
temp = call->logicalChans;
while (temp) {
if (temp->state == OO_LOGICALCHAN_ESTABLISHED) {
/* Sending closelogicalchannel only for outgoing channels */
if (!strcmp(temp->dir, "transmit")) {
if (call->h245SessionState != OO_H245SESSION_IDLE) {
ooSendCloseLogicalChannel(call, temp);
} else {
ooClearLogicalChannel(call, temp->channelNo);
}
} else if (!eTCS && call->h245SessionState != OO_H245SESSION_IDLE) {
ooSendEmptyTermCapMsg(call);
eTCS = TRUE;
}
}
temp = temp->next;
}
/* change media address for all caps */
if (call->mediaInfo) {
pMediaInfo = call->mediaInfo;
while (pMediaInfo) {
strcpy(pMediaInfo->lMediaIP, lIP);
pMediaInfo->lMediaRedirPort = port;
pMediaInfo->lMediaRedirCPort = port + 1;
pMediaInfo = pMediaInfo->next;
}
}
if (call->h245SessionState == OO_H245SESSION_IDLE) {
if (call->fsSent) {
ooSendFSUpdate(call);
}
} else {
call->TCSPending = TRUE;
}
/* Restart TCS exchange proc - Paul Cadah do it in chan_h323_exts native bridge code */
/* We must do it after all log channels are closed */
return OO_OK;
}
int ooSendCloseLogicalChannel(OOH323CallData *call, ooLogicalChannel *logicalChan)
{
int ret = OO_OK, error=0;
H245Message *ph245msg = NULL;
OOCTXT *pctxt;
H245RequestMessage *request;
H245CloseLogicalChannel* clc;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_request);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Failed to create H245 message for closeLogicalChannel"
" message (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOCloseLogicalChannel;
ph245msg->logicalChannelNo = logicalChan->channelNo;
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
request = ph245msg->h245Msg.u.request;
request->t = T_H245RequestMessage_closeLogicalChannel;
request->u.closeLogicalChannel = (H245CloseLogicalChannel*)ASN1MALLOC(pctxt,
sizeof(H245CloseLogicalChannel));
if(!request->u.closeLogicalChannel)
{
OOTRACEERR3("ERROR:Memory allocation for CloseLogicalChannel failed "
"(%s, %s)\n", call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
clc = request->u.closeLogicalChannel;
memset(clc, 0, sizeof(H245CloseLogicalChannel));
clc->forwardLogicalChannelNumber = logicalChan->channelNo;
clc->source.t = T_H245CloseLogicalChannel_source_lcse;
clc->m.reasonPresent = 1;
clc->reason.t = T_H245CloseLogicalChannel_reason_unknown;
OOTRACEDBGA4("Built close logical channel for %d (%s, %s)\n",
logicalChan->channelNo, call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue CloseLogicalChannel to outbound queue.(%s, %s)\n", call->callType,
call->callToken);
error++;
}
ooFreeH245Message(call, ph245msg);
/* Stop the media transmission */
/* Moved to OnReceivedClosedChannelAck */
logicalChan->state = OO_LOGICALCHAN_CLOSEPENDING;
if (error) {
return OO_FAILED;
}
return ret;
}
/*TODO: Need to pass reason as a parameter */
int ooSendRequestCloseLogicalChannel(OOH323CallData *call,
ooLogicalChannel *logicalChan)
{
int ret = OO_OK;
H245Message *ph245msg = NULL;
OOCTXT *pctxt;
H245RequestMessage *request;
H245RequestChannelClose *rclc;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_request);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Failed to create H245 message for "
"requestCloseLogicalChannel message (%s, %s)\n",
call->callType, call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OORequestChannelClose;
ph245msg->logicalChannelNo = logicalChan->channelNo;
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
request = ph245msg->h245Msg.u.request;
request->t = T_H245RequestMessage_requestChannelClose;
request->u.requestChannelClose = (H245RequestChannelClose*)ASN1MALLOC(pctxt,
sizeof(H245RequestChannelClose));
if(!request->u.requestChannelClose)
{
OOTRACEERR3("ERROR:Memory allocation for RequestCloseLogicalChannel "
" failed (%s, %s)\n", call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
rclc = request->u.requestChannelClose;
memset(rclc, 0, sizeof(H245RequestChannelClose));
rclc->forwardLogicalChannelNumber = logicalChan->channelNo;
rclc->m.reasonPresent = 1;
rclc->reason.t = T_H245RequestChannelClose_reason_unknown;
OOTRACEDBGA4("Built RequestCloseChannel for %d (%s, %s)\n",
logicalChan->channelNo, call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue the RequestCloseChannel to outbound"
" queue (%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooSendRequestChannelCloseRelease(OOH323CallData *call, int channelNum)
{
int ret = OO_OK;
H245Message *ph245msg = NULL;
OOCTXT *pctxt;
H245IndicationMessage *indication;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_indication);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Failed to create H245 message for "
"RequestChannelCloseRelease message (%s, %s)\n",
call->callType, call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OORequestChannelCloseRelease;
ph245msg->logicalChannelNo = channelNum;
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
indication = ph245msg->h245Msg.u.indication;
indication->t = T_H245IndicationMessage_requestChannelCloseRelease;
indication->u.requestChannelCloseRelease = (H245RequestChannelCloseRelease*)
ASN1MALLOC(pctxt, sizeof(H245RequestChannelCloseRelease));
if(!indication->u.requestChannelCloseRelease)
{
OOTRACEERR3("Error:Failed to allocate memory for "
"RequestChannelCloseRelease message. (%s, %s)\n",
call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
}
indication->u.requestChannelCloseRelease->forwardLogicalChannelNumber =
channelNum;
OOTRACEDBGA4("Built RequestChannelCloseRelease for %d (%s, %s)\n",
channelNum, call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue the RequestChannelCloseRelease to "
"outbound queue (%s, %s)\n", call->callType, call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooOnReceivedRequestChannelClose(OOH323CallData *call,
H245RequestChannelClose *rclc)
{
int ret=0, error=0;
H245Message *ph245msg=NULL;
H245ResponseMessage *response = NULL;
OOCTXT *pctxt=NULL;
H245RequestChannelCloseAck *rclcAck;
ooLogicalChannel * lChannel=NULL;
/* Send Ack: TODO: Need to send reject, if doesn't exist
*/
lChannel = ooFindLogicalChannelByLogicalChannelNo(call,
rclc->forwardLogicalChannelNumber);
if(!lChannel)
{
OOTRACEERR4("ERROR:Channel %d requested to be closed not found "
"(%s, %s)\n", rclc->forwardLogicalChannelNumber,
call->callType, call->callToken);
return OO_FAILED;
}
else{
if(strcmp(lChannel->dir, "transmit"))
{
OOTRACEERR4("ERROR:Channel %d requested to be closed, Not a forward "
"channel (%s, %s)\n", rclc->forwardLogicalChannelNumber,
call->callType, call->callToken);
return OO_FAILED;
}
}
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_response);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Memory allocation for RequestChannelCloseAck message "
"failed (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
ph245msg->msgType = OORequestChannelCloseAck;
ph245msg->logicalChannelNo = rclc->forwardLogicalChannelNumber;
response = ph245msg->h245Msg.u.response;
response->t = T_H245ResponseMessage_requestChannelCloseAck;
response->u.requestChannelCloseAck = (H245RequestChannelCloseAck*)ASN1MALLOC
(pctxt, sizeof(H245RequestChannelCloseAck));
if(!response->u.requestChannelCloseAck)
{
OOTRACEERR3("ERROR:Failed to allocate memory for RequestChannelCloseAck "
"message (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
rclcAck = response->u.requestChannelCloseAck;
memset(rclcAck, 0, sizeof(H245RequestChannelCloseAck));
rclcAck->forwardLogicalChannelNumber = rclc->forwardLogicalChannelNumber;
OOTRACEDBGA3("Built RequestCloseChannelAck message (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue RequestCloseChannelAck to outbound queue. (%s, %s)\n", call->callType,
call->callToken);
error++;
}
ooFreeH245Message(call, ph245msg);
/* Send Close Logical Channel if LogChan is established */
if (lChannel->state == OO_LOGICALCHAN_ESTABLISHED) {
ret = ooSendCloseLogicalChannel(call, lChannel);
if (ret != OO_OK) {
OOTRACEERR3("ERROR:Failed to build CloseLogicalChannel message(%s, %s)\n",
call->callType, call->callToken);
return OO_FAILED;
}
}
if (error) {
return OO_FAILED;
}
return ret;
}
int ooSendRoundTripDelayRequest(OOH323CallData *call)
{
int ret=0;
H245Message *ph245msg=NULL;
H245RequestMessage *request = NULL;
OOCTXT *pctxt=NULL;
H245RoundTripDelayRequest *rtdr;
ooTimerCallback *cbData=NULL;
if (call->rtdrSend > call->rtdrRecv + call->rtdrCount) {
if(call->callState < OO_CALL_CLEAR) {
call->callState = OO_CALL_CLEAR;
call->callEndReason = OO_REASON_UNKNOWN;
call->q931cause = Q931RecoveryOnTimerExpiry;
}
return OO_FAILED;
}
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_request);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Memory allocation for RoundTripDelayResponse message "
"failed (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
pctxt = call->msgctxt;
ph245msg->msgType = OORequestDelayRequest;
request = ph245msg->h245Msg.u.request;
request->t = T_H245RequestMessage_roundTripDelayRequest;
request->u.roundTripDelayRequest = (H245RoundTripDelayRequest *)ASN1MALLOC
(pctxt, sizeof(H245RoundTripDelayRequest));
if(!request->u.roundTripDelayRequest)
{
OOTRACEERR3("ERROR:Failed to allocate memory for H245RoundTripDelayRequest "
"message (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
rtdr = request->u.roundTripDelayRequest;
memset(rtdr, 0, sizeof(H245RoundTripDelayRequest));
rtdr->sequenceNumber = ++call->rtdrSend;
OOTRACEDBGA3("Built RoundTripDelayRequest message (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue RoundTripDelayRequest to outbound queue. (%s, %s)\n",
call->callType, call->callToken);
return OO_FAILED;
} else {
cbData = (ooTimerCallback*) memAlloc(call->pctxt,
sizeof(ooTimerCallback));
if(!cbData)
{
OOTRACEERR3("Error:Unable to allocate memory for timer callback data."
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
cbData->call = call;
cbData->timerType = OO_RTD_TIMER;
if(!ooTimerCreate(call->pctxt, &call->timerList, &ooRTDTimerExpired,
call->rtdrInterval, cbData, FALSE))
{
OOTRACEERR3("Error:Unable to create RTDR timer. "
"(%s, %s)\n", call->callType, call->callToken);
memFreePtr(call->pctxt, cbData);
return OO_FAILED;
}
}
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooOnReceivedRoundTripDelayRequest(OOH323CallData *call,
H245SequenceNumber sequenceNumber)
{
int ret=0;
H245Message *ph245msg=NULL;
H245ResponseMessage *response = NULL;
OOCTXT *pctxt=NULL;
H245RoundTripDelayResponse *rtdr;
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_response);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Memory allocation for RoundTripDelayResponse message "
"failed (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
pctxt = call->msgctxt;
ph245msg->msgType = OORequestDelayResponse;
response = ph245msg->h245Msg.u.response;
response->t = T_H245ResponseMessage_roundTripDelayResponse;
response->u.roundTripDelayResponse = (H245RoundTripDelayResponse *)ASN1MALLOC
(pctxt, sizeof(H245RoundTripDelayResponse));
if(!response->u.roundTripDelayResponse)
{
OOTRACEERR3("ERROR:Failed to allocate memory for H245RoundTripDelayResponse "
"message (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
rtdr = response->u.roundTripDelayResponse;
memset(rtdr, 0, sizeof(H245RoundTripDelayResponse));
rtdr->sequenceNumber = sequenceNumber;
OOTRACEDBGA3("Built RoundTripDelayResponse message (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue RoundTripDelayResponse to outbound queue. (%s, %s)\n",
call->callType, call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
/*
We clear channel here. Ideally the remote endpoint should send
CloseLogicalChannel and then the channel should be cleared. But there's no
timer for this and if remote endpoint misbehaves, the call will keep waiting
for CloseLogicalChannel and hence, wouldn't be cleared. In case when remote
endpoint sends CloseLogicalChannel, we call ooClearLogicalChannel again,
which simply returns OO_OK as channel was already cleared. Other option is
to start a timer for call cleanup and if call is not cleaned up within
timeout, we clean call forcefully. Note, no such timer is defined in
standards.
*/
int ooOnReceivedRequestChannelCloseAck
(OOH323CallData *call, H245RequestChannelCloseAck *rccAck)
{
int ret=OO_OK;
/* Remote endpoint is ok to close channel. So let's do it */
ret = ooClearLogicalChannel(call, rccAck->forwardLogicalChannelNumber);
if(ret != OO_OK)
{
OOTRACEERR4("Error:Failed to clear logical channel %d. (%s, %s)\n",
rccAck->forwardLogicalChannelNumber, call->callType,
call->callToken);
}
return ret;
}
int ooOnReceivedRequestChannelCloseReject
(OOH323CallData *call, H245RequestChannelCloseReject *rccReject)
{
int ret =0;
switch(rccReject->cause.t)
{
case T_H245RequestChannelCloseReject_cause_unspecified:
OOTRACEDBGA4("Remote endpoint has rejected request to close logical "
"channel %d - cause unspecified. (%s, %s)\n",
rccReject->forwardLogicalChannelNumber, call->callType,
call->callToken);
break;
case T_H245RequestChannelCloseReject_cause_extElem1:
OOTRACEDBGA4("Remote endpoint has rejected request to close logical "
"channel %d - cause propriatory. (%s, %s)\n",
rccReject->forwardLogicalChannelNumber, call->callType,
call->callToken);
break;
default:
OOTRACEDBGA4("Remote endpoint has rejected request to close logical "
"channel %d - cause INVALID. (%s, %s)\n",
rccReject->forwardLogicalChannelNumber, call->callType,
call->callToken);
}
OOTRACEDBGA4("Clearing logical channel %d. (%s, %s)\n",
rccReject->forwardLogicalChannelNumber, call->callType,
call->callToken);
ret = ooClearLogicalChannel(call, rccReject->forwardLogicalChannelNumber);
if(ret != OO_OK)
{
OOTRACEERR4("Error: failed to clear logical channel %d.(%s, %s)\n",
rccReject->forwardLogicalChannelNumber, call->callType,
call->callToken);
}
return ret;
}
/****/
int ooOnReceivedCloseLogicalChannel(OOH323CallData *call,
H245CloseLogicalChannel* clc)
{
int ret=0;
H245Message *ph245msg = NULL;
OOCTXT *pctxt = NULL;
H245CloseLogicalChannelAck * clcAck;
H245ResponseMessage *response;
OOTRACEINFO4("Closing logical channel number %d (%s, %s)\n",
clc->forwardLogicalChannelNumber, call->callType, call->callToken);
ret = ooClearLogicalChannel(call, clc->forwardLogicalChannelNumber);
if (ret != OO_OK) {
OOTRACEERR4("ERROR:Failed to close logical channel %d (%s, %s)\n",
clc->forwardLogicalChannelNumber, call->callType, call->callToken);
return OO_FAILED;
}
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_response);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Failed to create H245 message for "
"closeLogicalChannelAck (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
ph245msg->msgType = OOCloseLogicalChannelAck;
ph245msg->logicalChannelNo = clc->forwardLogicalChannelNumber;
response = ph245msg->h245Msg.u.response;
response->t = T_H245ResponseMessage_closeLogicalChannelAck;
response->u.closeLogicalChannelAck = (H245CloseLogicalChannelAck*)
ASN1MALLOC(pctxt, sizeof(H245CloseLogicalChannelAck));
clcAck = response->u.closeLogicalChannelAck;
if(!clcAck)
{
OOTRACEERR3("ERROR:Failed to allocate memory for closeLogicalChannelAck "
"(%s, %s)\n", call->callType, call->callToken);
return OO_OK;
}
memset(clcAck, 0, sizeof(H245CloseLogicalChannelAck));
clcAck->forwardLogicalChannelNumber = clc->forwardLogicalChannelNumber;
OOTRACEDBGA3("Built CloseLogicalChannelAck message (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue CloseLogicalChannelAck message to "
"outbound queue.(%s, %s)\n", call->callType, call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooOnReceivedCloseChannelAck(OOH323CallData* call,
H245CloseLogicalChannelAck* clcAck)
{
int ret = OO_OK;
/* Stop the media transmission */
OOTRACEINFO4("Closing logical channel %d (%s, %s)\n",
clcAck->forwardLogicalChannelNumber, call->callType,
call->callToken);
ret = ooClearLogicalChannel(call, clcAck->forwardLogicalChannelNumber);
if (ret != OO_OK) {
OOTRACEERR4("ERROR:Failed to close logical channel %d (%s, %s)\n",
clcAck->forwardLogicalChannelNumber, call->callType, call->callToken);
return OO_FAILED;
}
return ret;
}
int ooHandleH245Message(OOH323CallData *call, H245Message * pmsg)
{
ASN1UINT i;
DListNode *pNode = NULL;
OOTimer *pTimer = NULL;
H245Message *pH245 = (H245Message*)pmsg;
/* There are four major types of H.245 messages that can be received.
Request/Response/Command/Indication. Each one of them need to be
handled separately.
*/
H245RequestMessage *request = NULL;
H245ResponseMessage *response = NULL;
H245CommandMessage *command = NULL;
H245IndicationMessage *indication = NULL;
OOTRACEDBGC3("Handling H245 message. (%s, %s)\n", call->callType,
call->callToken);
switch(pH245->h245Msg.t)
{
/* H.245 Request message is received */
case (T_H245MultimediaSystemControlMessage_request):
request = pH245->h245Msg.u.request;
switch(request->t)
{
case T_H245RequestMessage_terminalCapabilitySet:
/* If session isn't marked active yet, do it. possible in case of
tunneling */
if(call->h245SessionState == OO_H245SESSION_IDLE)
call->h245SessionState = OO_H245SESSION_ACTIVE;
ooOnReceivedTerminalCapabilitySet(call, pH245);
if(call->localTermCapState == OO_LocalTermCapExchange_Idle)
ooSendTermCapMsg(call);
break;
case T_H245RequestMessage_masterSlaveDetermination:
ooHandleMasterSlave(call,
request->u.masterSlaveDetermination,
OOMasterSlaveDetermination);
break;
case T_H245RequestMessage_openLogicalChannel:
ooHandleOpenLogicalChannel(call,
request->u.openLogicalChannel);
if(!ooGetTransmitLogicalChannel(call))
ooOpenLogicalChannels(call);
break;
case T_H245RequestMessage_requestMode:
OOTRACEINFO4("Received request mode - %d (%s, %s)\n",
request->u.requestMode->sequenceNumber, call->callType, call->callToken);
ooHandleRequestMode(call,
request->u.requestMode);
break;
case T_H245RequestMessage_closeLogicalChannel:
OOTRACEINFO4("Received close logical Channel - %d (%s, %s)\n",
request->u.closeLogicalChannel->forwardLogicalChannelNumber,
call->callType, call->callToken);
if (ooOnReceivedCloseLogicalChannel(call,
request->u.closeLogicalChannel) == OO_OK) {
if (call->TCSPending && !ooGetTransmitLogicalChannel(call)) {
call->TCSPending = FALSE;
call->localTermCapState = OO_LocalTermCapExchange_Idle;
ooSendTermCapMsg(call);
} else if (!call->TCSPending) {
ooCloseAllLogicalChannels(call, NULL);
}
}
break;
case T_H245RequestMessage_requestChannelClose:
OOTRACEINFO4("Received RequestChannelClose - %d (%s, %s)\n",
request->u.requestChannelClose->forwardLogicalChannelNumber,
call->callType, call->callToken);
ooOnReceivedRequestChannelClose(call,
request->u.requestChannelClose);
break;
case T_H245RequestMessage_roundTripDelayRequest:
OOTRACEINFO4("Received roundTripDelayRequest - %d (%s, %s)\n",
request->u.roundTripDelayRequest->sequenceNumber, call->callType, call->callToken);
ooOnReceivedRoundTripDelayRequest(call, request->u.roundTripDelayRequest->sequenceNumber);
break;
default:
;
} /* End of Request Message */
break;
/* H.245 Response message is received */
case (T_H245MultimediaSystemControlMessage_response):
response = pH245->h245Msg.u.response;
switch(response->t)
{
case T_H245ResponseMessage_masterSlaveDeterminationAck:
/* Disable MSD timer */
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if(((ooTimerCallback*)pTimer->cbData)->timerType & OO_MSD_TIMER)
{
ASN1MEMFREEPTR(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted MSD Timer. (%s, %s)\n", call->callType,
call->callToken);
break;
}
}
ooHandleMasterSlave(call,
response->u.masterSlaveDeterminationAck,
OOMasterSlaveAck);
break;
case T_H245ResponseMessage_masterSlaveDeterminationReject:
/* Disable MSD timer */
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if(((ooTimerCallback*)pTimer->cbData)->timerType & OO_MSD_TIMER)
{
ASN1MEMFREEPTR(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted MSD Timer. (%s, %s)\n", call->callType,
call->callToken);
break;
}
}
ooHandleMasterSlaveReject(call,
response->u.masterSlaveDeterminationReject);
break;
case T_H245ResponseMessage_terminalCapabilitySetAck:
/* Disable TCS timer */
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if(((ooTimerCallback*)pTimer->cbData)->timerType & OO_TCS_TIMER)
{
ASN1MEMFREEPTR(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted TCS Timer. (%s, %s)\n", call->callType,
call->callToken);
break;
}
}
ooOnReceivedTerminalCapabilitySetAck(call);
break;
case T_H245ResponseMessage_terminalCapabilitySetReject:
OOTRACEINFO3("TerminalCapabilitySetReject message received."
" (%s, %s)\n", call->callType, call->callToken);
if(response->u.terminalCapabilitySetReject->sequenceNumber !=
call->localTermCapSeqNo)
{
OOTRACEINFO5("Ignoring TCSReject with mismatched seqno %d "
"(local - %d). (%s, %s)\n",
response->u.terminalCapabilitySetReject->sequenceNumber,
call->localTermCapSeqNo, call->callType, call->callToken);
break;
}
/* Disable TCS timer */
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if(((ooTimerCallback*)pTimer->cbData)->timerType & OO_TCS_TIMER)
{
ASN1MEMFREEPTR(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted TCS Timer. (%s, %s)\n", call->callType,
call->callToken);
break;
}
}
if(call->callState < OO_CALL_CLEAR)
{
call->callState = OO_CALL_CLEAR;
call->callEndReason = OO_REASON_NOCOMMON_CAPABILITIES;
}
break;
case T_H245ResponseMessage_requestModeAck:
if (call->requestSequence == response->u.requestModeAck->sequenceNumber) {
/* response to our last request, process it */
ooOnReceivedRequestModeAck(call, response->u.requestModeAck);
}
break;
case T_H245ResponseMessage_requestModeReject:
OOTRACEDBGC3("Received requestModeReject, clearing call (%s, %s)\n",
call->callType, call->callToken);
if(call->callState < OO_CALL_CLEAR)
{
call->callState = OO_CALL_CLEAR;
call->callEndReason = OO_REASON_REMOTE_REJECTED;
}
break;
case T_H245ResponseMessage_openLogicalChannelAck:
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if((((ooTimerCallback*)pTimer->cbData)->timerType & OO_OLC_TIMER) &&
((ooTimerCallback*)pTimer->cbData)->channelNumber ==
response->u.openLogicalChannelAck->forwardLogicalChannelNumber)
{
memFreePtr(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted OpenLogicalChannel Timer. (%s, %s)\n",
call->callType, call->callToken);
break;
}
}
ooOnReceivedOpenLogicalChannelAck(call,
response->u.openLogicalChannelAck);
break;
case T_H245ResponseMessage_openLogicalChannelReject:
OOTRACEINFO3("Open Logical Channel Reject received (%s, %s)\n",
call->callType, call->callToken);
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if((((ooTimerCallback*)pTimer->cbData)->timerType & OO_OLC_TIMER) &&
((ooTimerCallback*)pTimer->cbData)->channelNumber ==
response->u.openLogicalChannelAck->forwardLogicalChannelNumber)
{
ASN1MEMFREEPTR(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted OpenLogicalChannel Timer. (%s, %s)\n",
call->callType, call->callToken);
break;
}
}
ooOnReceivedOpenLogicalChannelRejected(call,
response->u.openLogicalChannelReject);
break;
case T_H245ResponseMessage_closeLogicalChannelAck:
OOTRACEINFO4("CloseLogicalChannelAck received for %d (%s, %s)\n",
response->u.closeLogicalChannelAck->forwardLogicalChannelNumber,
call->callType, call->callToken);
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if((((ooTimerCallback*)pTimer->cbData)->timerType & OO_CLC_TIMER) &&
((ooTimerCallback*)pTimer->cbData)->channelNumber ==
response->u.closeLogicalChannelAck->forwardLogicalChannelNumber)
{
ASN1MEMFREEPTR(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted CloseLogicalChannel Timer. (%s, %s)\n",
call->callType, call->callToken);
break;
}
}
ooOnReceivedCloseChannelAck(call,
response->u.closeLogicalChannelAck);
if (call->TCSPending && !ooGetReceiveLogicalChannel(call)) {
call->TCSPending = FALSE;
call->localTermCapState = OO_LocalTermCapExchange_Idle;
ooSendTermCapMsg(call);
} else if (!ooGetTransmitLogicalChannel(call)) {
ooOpenLogicalChannels(call);
}
break;
case T_H245ResponseMessage_requestChannelCloseAck:
OOTRACEINFO4("RequestChannelCloseAck received - %d (%s, %s)\n",
response->u.requestChannelCloseAck->forwardLogicalChannelNumber,
call->callType, call->callToken);
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if((((ooTimerCallback*)pTimer->cbData)->timerType & OO_RCC_TIMER) &&
((ooTimerCallback*)pTimer->cbData)->channelNumber ==
response->u.requestChannelCloseAck->forwardLogicalChannelNumber)
{
ASN1MEMFREEPTR(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted RequestChannelClose Timer. (%s, %s)\n",
call->callType, call->callToken);
break;
}
}
/* Do nothing by receive reqChanCloseAck */
break;
case T_H245ResponseMessage_requestChannelCloseReject:
OOTRACEINFO4("RequestChannelCloseReject received - %d (%s, %s)\n",
response->u.requestChannelCloseReject->forwardLogicalChannelNumber,
call->callType, call->callToken);
for(i = 0; i<call->timerList.count; i++)
{
pNode = dListFindByIndex(&call->timerList, i);
pTimer = (OOTimer*)pNode->data;
if((((ooTimerCallback*)pTimer->cbData)->timerType & OO_RCC_TIMER) &&
((ooTimerCallback*)pTimer->cbData)->channelNumber ==
response->u.requestChannelCloseReject->forwardLogicalChannelNumber)
{
ASN1MEMFREEPTR(call->pctxt, pTimer->cbData);
ooTimerDelete(call->pctxt, &call->timerList, pTimer);
OOTRACEDBGC3("Deleted RequestChannelClose Timer. (%s, %s)\n",
call->callType, call->callToken);
break;
}
}
ooOnReceivedRequestChannelCloseReject(call,
response->u.requestChannelCloseReject);
break;
case T_H245ResponseMessage_roundTripDelayResponse:
OOTRACEINFO4("Received roundTripDelayResponse - %d (%s, %s)\n",
response->u.roundTripDelayResponse->sequenceNumber, call->callType, call->callToken);
call->rtdrRecv = response->u.roundTripDelayResponse->sequenceNumber;
break;
default:
;
}
break;
/* H.245 command message is received */
case (T_H245MultimediaSystemControlMessage_command):
command = pH245->h245Msg.u.command;
ooHandleH245Command(call, command);
break;
/* H.245 Indication message received */
case (T_H245MultimediaSystemControlMessage_indication):
indication = pH245->h245Msg.u.indication;
switch(indication->t)
{
case T_H245IndicationMessage_userInput:
ooOnReceivedUserInputIndication(call, indication->u.userInput);
break;
default:
OOTRACEWARN3("Unhandled indication message received.(%s, %s)\n",
call->callType, call->callToken);
}
break;
default:
;
}
OOTRACEDBGC3("Finished handling H245 message. (%s, %s)\n",
call->callType, call->callToken);
return OO_OK;
}
int ooOnReceivedUserInputIndication
(OOH323CallData *call, H245UserInputIndication *indication)
{
if((indication->t == T_H245UserInputIndication_alphanumeric) &&
(call->dtmfmode & OO_CAP_DTMF_H245_alphanumeric))
{
if(gH323ep.h323Callbacks.onReceivedDTMF)
gH323ep.h323Callbacks.onReceivedDTMF(call,indication->u.alphanumeric);
}
else if((indication->t == T_H245UserInputIndication_signal) &&
(call->dtmfmode & OO_CAP_DTMF_H245_signal)) {
if(call->lastDTMF && indication->u.signal->signalType[0] == call->lastDTMF &&
call->nextDTMFstamp && indication->u.signal->m.rtpPresent &&
indication->u.signal->rtp.m.timestampPresent) {
if(call->nextDTMFstamp > indication->u.signal->rtp.timestamp) {
OOTRACEERR4("ERROR:Duplicate dtmf %c on ((%s, %s)\n", call->lastDTMF, call->callType,
call->callToken);
return OO_OK;
}
}
if (indication->u.signal->m.rtpPresent && indication->u.signal->rtp.m.timestampPresent &&
indication->u.signal->m.durationPresent) {
call->nextDTMFstamp = indication->u.signal->rtp.timestamp +
indication->u.signal->duration;
call->lastDTMF = indication->u.signal->signalType[0];
} else {
call->nextDTMFstamp = 0;
call->lastDTMF = 0;
}
if(gH323ep.h323Callbacks.onReceivedDTMF)
gH323ep.h323Callbacks.onReceivedDTMF(call,
indication->u.signal->signalType);
}
else {
OOTRACEINFO3("Unsupported userInput message type received - ignoring."
"(%s, %s)\n", call->callType, call->callToken);
}
return OO_OK;
}
int ooOnReceivedTerminalCapabilitySet(OOH323CallData *call, H245Message *pmsg)
{
int ret = 0,k;
H245TerminalCapabilitySet *tcs=NULL;
DListNode *pNode=NULL;
H245CapabilityTableEntry *capEntry = NULL;
ooLogicalChannel *temp = NULL;
tcs = pmsg->h245Msg.u.request->u.terminalCapabilitySet;
if(call->remoteTermCapSeqNo > tcs->sequenceNumber)
{
OOTRACEINFO4("Rejecting TermCapSet message with SeqNo %d, as already "
"acknowledged message with this SeqNo (%s, %s)\n",
call->remoteTermCapSeqNo, call->callType, call->callToken);
ooSendTerminalCapabilitySetReject(call, tcs->sequenceNumber,
T_H245TerminalCapabilitySetReject_cause_unspecified);
return OO_OK;
} else {
/* 20090924 */
/* bogus soft-switch can send more than one request with cap set
if it goto to next choice. Right swith don't send but not all are right ;(
we can accept new capability set only. We must remember also that new join caps
will be previously joined caps with new cap set.
*/
/* 20111103 */
/* for addition for previous we must check repeated tcs if it's not first
tcs i.e. SeqNo is not null */
if(call->remoteTermCapSeqNo && call->remoteTermCapSeqNo == tcs->sequenceNumber)
call->localTermCapState = OO_LocalTermCapExchange_Idle;
}
/* empty tcs - renegotiate logical channels */
if(!tcs->m.capabilityTablePresent)
{
OOTRACEDBGC3("Empty TCS found. (%s, %s)\n",
call->callType, call->callToken);
call->remoteTermCapSeqNo = tcs->sequenceNumber;
ooH245AcknowledgeTerminalCapabilitySet(call);
/* close all transmit chans */
temp = call->logicalChans;
while (temp) {
if (temp->state == OO_LOGICALCHAN_ESTABLISHED) {
/* Sending closelogicalchannel only for outgoing channels */
if (!strcmp(temp->dir, "transmit")) {
ooSendCloseLogicalChannel(call, temp);
}
}
temp = temp->next;
}
call->TCSPending = TRUE;
return OO_OK;
}
call->remoteTermCapSeqNo = tcs->sequenceNumber;
if(tcs->m.capabilityTablePresent) {
for(k=0; k<(int)tcs->capabilityTable.count; k++)
{
pNode = dListFindByIndex(&tcs->capabilityTable, k);
if(pNode)
{
OOTRACEDBGC4("Processing CapabilityTable Entry %d (%s, %s)\n",
k, call->callType, call->callToken);
capEntry = (H245CapabilityTableEntry*) pNode->data;
if(capEntry->m.capabilityPresent){
ret = ooAddRemoteCapability(call, &capEntry->capability);
if(ret != OO_OK)
{
OOTRACEERR4("Error:Failed to process remote capability in "
"capability table at index %d. (%s, %s)\n",
k, call->callType, call->callToken);
}
ooCapabilityUpdateJointCapabilities(call, &capEntry->capability);
}
}
pNode = NULL;
capEntry=NULL;
}
}
if (call->t38sides == 3) /* both side support t.38 */
OO_SETFLAG(call->flags, OO_M_T38SUPPORTED);
else
OO_CLRFLAG(call->flags, OO_M_T38SUPPORTED);
/* Update remoteTermCapSetState */
call->remoteTermCapState = OO_RemoteTermCapSetRecvd;
ooH245AcknowledgeTerminalCapabilitySet(call);
/* If we haven't yet send TCS then send it now */
if(call->localTermCapState == OO_LocalTermCapExchange_Idle)
{
ret = ooSendTermCapMsg(call);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Sending Terminal capability message (%s, %s)\n",
call->callType, call->callToken);
return ret;
}
}
if(call->remoteTermCapState != OO_RemoteTermCapSetAckSent ||
call->localTermCapState != OO_LocalTermCapSetAckRecvd)
return OO_OK;
if(call->masterSlaveState == OO_MasterSlave_Idle) {
ret = ooSendMasterSlaveDetermination(call);
if(ret != OO_OK) {
OOTRACEERR3("ERROR:Sending Master-slave determination message "
"(%s, %s)\n", call->callType, call->callToken);
return ret;
}
}
/* Check MasterSlave procedure has finished */
if(call->masterSlaveState != OO_MasterSlave_Master &&
call->masterSlaveState != OO_MasterSlave_Slave)
return OO_OK;
/* As both MasterSlave and TerminalCapabilitySet procedures have finished,
OpenLogicalChannels */
if(gH323ep.h323Callbacks.openLogicalChannels)
gH323ep.h323Callbacks.openLogicalChannels(call);
/* ooSendStatusInquiry(call); */
if(!ooGetTransmitLogicalChannel(call))
ooOpenLogicalChannels(call);
#if 0
if(!call->logicalChans){
if(!gH323ep.h323Callbacks.openLogicalChannels)
ret = ooOpenLogicalChannels(call);
else
gH323ep.h323Callbacks.openLogicalChannels(call);
}
#endif
return OO_OK;
}
int ooSendTerminalCapabilitySetReject
(OOH323CallData *call, int seqNo, ASN1UINT cause)
{
H245Message *ph245msg=NULL;
H245ResponseMessage * response=NULL;
OOCTXT *pctxt=NULL;
int ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_response);
if(ret != OO_OK)
{
OOTRACEERR1("ERROR:H245 message creation failed for - "
"TerminalCapabilitySetReject\n");
return OO_FAILED;
}
ph245msg->msgType = OOTerminalCapabilitySetReject;
response = ph245msg->h245Msg.u.response;
memset(response, 0, sizeof(H245ResponseMessage));
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
response->t = T_H245ResponseMessage_terminalCapabilitySetReject;
response->u.terminalCapabilitySetReject = (H245TerminalCapabilitySetReject*)
ASN1MALLOC(pctxt, sizeof(H245TerminalCapabilitySetReject));
memset(response->u.terminalCapabilitySetReject, 0,
sizeof(H245TerminalCapabilitySetReject));
response->u.terminalCapabilitySetReject->sequenceNumber = seqNo;
response->u.terminalCapabilitySetReject->cause.t = cause;
OOTRACEDBGA3("Built TerminalCapabilitySetReject (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue TCSReject to outbound queue. "
"(%s, %s)\n", call->callType, call->callToken);
}
else
call->remoteTermCapState = OO_RemoteTermCapExchange_Idle;
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooH245AcknowledgeTerminalCapabilitySet(OOH323CallData *call)
{
H245Message *ph245msg=NULL;
H245ResponseMessage * response=NULL;
OOCTXT *pctxt=NULL;
int ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_response);
if(ret != OO_OK)
{
OOTRACEERR1("ERROR:H245 message creation failed for - "
"TerminalCapability Set Ack\n");
return OO_FAILED;
}
ph245msg->msgType = OOTerminalCapabilitySetAck;
response = ph245msg->h245Msg.u.response;
memset(response, 0, sizeof(H245ResponseMessage));
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
response->t = T_H245ResponseMessage_terminalCapabilitySetAck;
response->u.terminalCapabilitySetAck = (H245TerminalCapabilitySetAck*)
ASN1MALLOC(pctxt, sizeof(H245TerminalCapabilitySetAck));
memset(response->u.terminalCapabilitySetAck, 0,
sizeof(H245TerminalCapabilitySetAck));
response->u.terminalCapabilitySetAck->sequenceNumber = call->remoteTermCapSeqNo;
OOTRACEDBGA3("Built TerminalCapabilitySet Ack (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue TCSAck to outbound queue. (%s, %s)\n", call->callType, call->callToken);
}
else
call->remoteTermCapState = OO_RemoteTermCapSetAckSent;
ooFreeH245Message(call, ph245msg);
return ret;
}
int ooSendTerminalCapabilitySetRelease(OOH323CallData * call)
{
int ret=0;
H245IndicationMessage* indication=NULL;
H245Message *ph245msg=NULL;
/* OOCTXT *pctxt=&gH323ep.msgctxt; */
OOCTXT *pctxt=call->msgctxt;
ret = ooCreateH245Message
(call, &ph245msg, T_H245MultimediaSystemControlMessage_indication);
if (ret != OO_OK) {
OOTRACEERR3("Error:H245 message creation failed for - Terminal"
"CapabilitySetRelease (%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOTerminalCapabilitySetRelease;
indication = ph245msg->h245Msg.u.indication;
indication->t = T_H245IndicationMessage_terminalCapabilitySetRelease;
indication->u.terminalCapabilitySetRelease =
(H245TerminalCapabilitySetRelease*)
memAlloc (pctxt, sizeof(H245TerminalCapabilitySetRelease));
if(!indication->u.terminalCapabilitySetRelease)
{
OOTRACEERR3("Error: Failed to allocate memory for TCSRelease message."
" (%s, %s)\n", call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
OOTRACEDBGA3 ("Built TerminalCapabilitySetRelease (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg (call, ph245msg);
if (ret != OO_OK) {
OOTRACEERR3
("Error:Failed to enqueue TerminalCapabilitySetRelease "
"message to outbound queue.(%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message (call, ph245msg);
return ret;
}
int ooSendH245UserInputIndication_alphanumeric
(OOH323CallData *call, const char *data)
{
int ret=0;
H245IndicationMessage* indication=NULL;
H245Message *ph245msg=NULL;
/* OOCTXT *pctxt=&gH323ep.msgctxt; */
OOCTXT *pctxt=call->msgctxt;
ret = ooCreateH245Message
(call, &ph245msg, T_H245MultimediaSystemControlMessage_indication);
if (ret != OO_OK) {
OOTRACEERR3("Error:H245 message creation failed for - H245UserInput"
"Indication_alphanumeric (%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOUserInputIndication;
indication = ph245msg->h245Msg.u.indication;
indication->t = T_H245IndicationMessage_userInput;
indication->u.userInput =
(H245UserInputIndication*)
memAllocZ (pctxt, sizeof(H245UserInputIndication));
if(!indication->u.userInput)
{
OOTRACEERR3("Error: Memory - ooH245UserInputIndication_alphanumeric - "
" userInput (%s, %s)\n", call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
indication->u.userInput->t = T_H245UserInputIndication_alphanumeric;
indication->u.userInput->u.alphanumeric = (ASN1GeneralString)
memAlloc(pctxt, strlen(data)+1);
if(!indication->u.userInput->u.alphanumeric)
{
OOTRACEERR3("Error: Memory - ooH245UserInputIndication-alphanumeric - "
"alphanumeric (%s, %s).\n", call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
strcpy(*(char**)&indication->u.userInput->u.alphanumeric, data);
OOTRACEDBGA3 ("Built UserInputIndication_alphanumeric (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg (call, ph245msg);
if (ret != OO_OK) {
OOTRACEERR3
("Error:Failed to enqueue UserInputIndication_alphanumeric "
"message to outbound queue.(%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message (call, ph245msg);
return ret;
}
int ooSendH245UserInputIndication_signal
(OOH323CallData *call, const char *data)
{
int ret=0;
H245IndicationMessage* indication=NULL;
H245Message *ph245msg=NULL;
/* OOCTXT *pctxt=&gH323ep.msgctxt; */
OOCTXT *pctxt=call->msgctxt;
ret = ooCreateH245Message
(call, &ph245msg, T_H245MultimediaSystemControlMessage_indication);
if (ret != OO_OK) {
OOTRACEERR3("Error:H245 message creation failed for - H245UserInput"
"Indication_signal (%s, %s)\n",call->callType,
call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOUserInputIndication;
indication = ph245msg->h245Msg.u.indication;
indication->t = T_H245IndicationMessage_userInput;
indication->u.userInput =
(H245UserInputIndication*)
memAllocZ (pctxt, sizeof(H245UserInputIndication));
if(!indication->u.userInput)
{
OOTRACEERR3("Error: Memory - ooH245UserInputIndication_signal - "
" userInput (%s, %s)\n", call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
indication->u.userInput->t = T_H245UserInputIndication_signal;
indication->u.userInput->u.signal = (H245UserInputIndication_signal*)
memAllocZ(pctxt, sizeof(H245UserInputIndication_signal));
indication->u.userInput->u.signal->signalType = (ASN1IA5String)
memAlloc(pctxt, strlen(data)+1);
if(!indication->u.userInput->u.signal ||
!indication->u.userInput->u.signal->signalType)
{
OOTRACEERR3("Error: Memory - ooH245UserInputIndication_signal - "
"signal (%s, %s).\n", call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
strcpy(*(char**)&indication->u.userInput->u.signal->signalType, data);
OOTRACEDBGA3 ("Built UserInputIndication_signal (%s, %s)\n",
call->callType, call->callToken);
ret = ooSendH245Msg (call, ph245msg);
if (ret != OO_OK) {
OOTRACEERR3
("Error:Failed to enqueue UserInputIndication_signal "
"message to outbound queue.(%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message (call, ph245msg);
return ret;
}
int ooOpenLogicalChannels(OOH323CallData *call)
{
int ret=0;
OOTRACEINFO3("Opening logical channels (%s, %s)\n", call->callType,
call->callToken);
/* Audio channels */
if(gH323ep.callMode == OO_CALLMODE_AUDIOCALL ||
gH323ep.callMode == OO_CALLMODE_AUDIOTX)
{
if (OO_TESTFLAG (call->flags, OO_M_AUDIOSESSION)) {
ret = ooOpenLogicalChannel(call, OO_CAP_TYPE_AUDIO);
} else if (OO_TESTFLAG (call->flags, OO_M_DATASESSION)) {
ret = ooOpenLogicalChannel(call, OO_CAP_TYPE_DATA);
}
if(ret != OO_OK) {
OOTRACEERR3("ERROR:Failed to open audio/data channels. Clearing call."
"(%s, %s)\n", call->callType, call->callToken);
if (call->callState < OO_CALL_CLEAR) {
call->callEndReason = OO_REASON_LOCAL_CLEARED;
call->callState = OO_CALL_CLEAR;
}
return ret;
}
}
if(gH323ep.callMode == OO_CALLMODE_VIDEOCALL)
{
/* if (!OO_TESTFLAG (call->flags, OO_M_AUDIOSESSION))
{*/
ret = ooOpenLogicalChannel(call, OO_CAP_TYPE_AUDIO);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Failed to open audio channel. Clearing call."
"(%s, %s)\n", call->callType, call->callToken);
if(call->callState < OO_CALL_CLEAR)
{
call->callEndReason = OO_REASON_LOCAL_CLEARED;
call->callState = OO_CALL_CLEAR;
}
return ret;
}
//}
/* if(!OO_TESTFLAG(call->flags, OO_M_VIDEOSESSION))
{*/
ret = ooOpenLogicalChannel(call, OO_CAP_TYPE_VIDEO);
if(ret != OO_OK)
{
OOTRACEERR3("ERROR:Failed to open video channel. Clearing call."
"(%s, %s)\n", call->callType, call->callToken);
if(call->callState < OO_CALL_CLEAR)
{
call->callEndReason = OO_REASON_LOCAL_CLEARED;
call->callState = OO_CALL_CLEAR;
}
return ret;
}
//}
}
return OO_OK;
}
/* CapType indicates whether to Open Audio or Video channel */
int ooOpenLogicalChannel(OOH323CallData *call, enum OOCapType capType )
{
ooH323EpCapability *epCap=NULL;
int k=0;
/* Check whether local endpoint has audio capability */
if(gH323ep.myCaps == 0 && call->ourCaps == 0)
{
OOTRACEERR3("ERROR:Local endpoint does not have any audio capabilities"
" (%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
/* Go through local endpoints capabilities sequentially, and find out the
first one which has a match in the remote endpoints receive capabilities.
*/
OOTRACEINFO3("Looking for matching capabilities. (%s, %s)\n",
call->callType, call->callToken);
/* May */
if(call->masterSlaveState == OO_MasterSlave_Master)
{
for(k=0; k<call->capPrefs.index; k++)
{
/*Search for audio caps only */
if(capType == OO_CAP_TYPE_AUDIO &&
call->capPrefs.order[k] > OO_CAP_VIDEO_BASE)
continue;
/* Search for video caps only */
if(capType == OO_CAP_TYPE_VIDEO &&
call->capPrefs.order[k] <= OO_CAP_VIDEO_BASE)
continue;
epCap = call->jointCaps;
while(epCap){
if(epCap->cap == call->capPrefs.order[k] && (epCap->dir & OOTX))
break;
epCap = epCap->next;
}
if(!epCap)
{
OOTRACEDBGA4("Prefereed capability %d is not a local transmit "
"capability(%s, %s)\n", call->capPrefs.order[k],
call->callType, call->callToken);
continue;
}
break;
}
if(!epCap)
{
OOTRACEERR4("ERROR:Incompatible capabilities - Can not open "
"%s channel (%s, %s)\n",
(capType==OO_CAP_TYPE_AUDIO)?"audio":"video", call->callType,
call->callToken);
return OO_FAILED;
}
}
else
{
epCap = call->jointCaps;
while(epCap){
if(epCap->capType == capType && epCap->dir & OOTX) { break; }
epCap = epCap->next;
}
if(!epCap)
{
OOTRACEERR4("ERROR:Incompatible audio capabilities - Can not open "
"%s channel (%s, %s)\n",
(capType==OO_CAP_TYPE_AUDIO)?"audio":"video", call->callType,
call->callToken);
return OO_FAILED;
}
}
switch(epCap->cap)
{
case OO_G711ALAW64K:
case OO_G711ALAW56K:
case OO_G711ULAW64K:
case OO_G711ULAW56K:
case OO_G726:
case OO_G726AAL2:
case OO_AMRNB:
case OO_SPEEX:
case OO_G728:
case OO_G729:
case OO_G729A:
case OO_G729B:
case OO_G7231:
case OO_GSMFULLRATE:
case OO_GSMHALFRATE:
case OO_GSMENHANCEDFULLRATE:
case OO_H263VIDEO:
case OO_T38:
ooOpenChannel(call, epCap);
break;
default:
OOTRACEERR3("ERROR:Unknown Audio Capability type (%s, %s)\n",
call->callType, call->callToken);
}
return OO_OK;
}
int ooOpenChannel(OOH323CallData* call, ooH323EpCapability *epCap)
{
int ret;
H245Message *ph245msg = NULL;
H245RequestMessage * request;
OOCTXT *pctxt = NULL;
H245OpenLogicalChannel_forwardLogicalChannelParameters *flcp = NULL;
H245AudioCapability *audioCap = NULL;
H245VideoCapability *videoCap = NULL;
H245DataApplicationCapability *t38Cap = NULL;
H245H2250LogicalChannelParameters *h2250lcp = NULL;
H245UnicastAddress *unicastAddrs = NULL;
H245UnicastAddress_iPAddress *iPAddress = NULL;
H245UnicastAddress_iP6Address *iP6Address = NULL;
unsigned session_id=0;
ooLogicalChannel *pLogicalChannel = NULL;
OOTRACEDBGC4("Doing Open Channel for %s. (%s, %s)\n",
ooGetCapTypeText(epCap->cap), call->callType,
call->callToken);
ret = ooCreateH245Message(call, &ph245msg,
T_H245MultimediaSystemControlMessage_request);
if(ret != OO_OK)
{
OOTRACEERR4("Error: H245 message creation failed for - Open %s"
"channel (%s, %s)\n", ooGetCapTypeText(epCap->cap),
call->callType, call->callToken);
return OO_FAILED;
}
ph245msg->msgType = OOOpenLogicalChannel;
ph245msg->logicalChannelNo = call->logicalChanNoCur++;
if(call->logicalChanNoCur > call->logicalChanNoMax)
call->logicalChanNoCur = call->logicalChanNoBase;
request = ph245msg->h245Msg.u.request;
/* pctxt = &gH323ep.msgctxt; */
pctxt = call->msgctxt;
memset(request, 0, sizeof(H245RequestMessage));
request->t = T_H245RequestMessage_openLogicalChannel;
request->u.openLogicalChannel = (H245OpenLogicalChannel*)
memAlloc(pctxt, sizeof(H245OpenLogicalChannel));
if(!request->u.openLogicalChannel)
{
OOTRACEERR3("Error:Memory - ooOpenChannel - openLogicalChannel."
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
memset(request->u.openLogicalChannel, 0,
sizeof(H245OpenLogicalChannel));
request->u.openLogicalChannel->forwardLogicalChannelNumber =
ph245msg->logicalChannelNo;
session_id = ooCallGenerateSessionID(call, epCap->capType, "transmit");
pLogicalChannel = ooAddNewLogicalChannel(call,
request->u.openLogicalChannel->forwardLogicalChannelNumber,
session_id, "transmit", epCap);
if(!pLogicalChannel)
{
OOTRACEERR3("ERROR:Failed to add new logical channel entry (%s, %s)\n",
call->callType, call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
/* Populate H245OpenLogicalChannel_ForwardLogicalChannel Parameters*/
flcp = &(request->u.openLogicalChannel->forwardLogicalChannelParameters);
flcp->m.portNumberPresent = 0;
flcp->m.forwardLogicalChannelDependencyPresent = 0;
flcp->m.replacementForPresent = 0;
/* data type of channel */
if(epCap->capType == OO_CAP_TYPE_AUDIO)
{
flcp->dataType.t = T_H245DataType_audioData;
/* set audio capability for channel */
audioCap = ooCapabilityCreateAudioCapability(epCap,pctxt, OOTX);
if(!audioCap)
{
OOTRACEERR4("Error:Failed to create duplicate audio capability in "
"ooOpenChannel- %s (%s, %s)\n",
ooGetCapTypeText(epCap->cap), call->callType,
call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
flcp->dataType.u.audioData = audioCap;
}
else if(epCap->capType == OO_CAP_TYPE_VIDEO)
{
flcp->dataType.t = T_H245DataType_videoData;
videoCap = ooCapabilityCreateVideoCapability(epCap, pctxt, OOTX);
if(!videoCap)
{
OOTRACEERR4("Error:Failed to create duplicate video capability in "
"ooOpenChannel- %s (%s, %s)\n",
ooGetCapTypeText(epCap->cap), call->callType,
call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
flcp->dataType.u.videoData = videoCap;
}
else if(epCap->capType == OO_CAP_TYPE_DATA)
{
flcp->dataType.t = T_H245DataType_data;
/* set audio capability for channel */
t38Cap = ooCapabilityCreateT38Capability(epCap,pctxt, OOTX);
if(!t38Cap)
{
OOTRACEERR4("Error:Failed to create duplicate T38 capability in "
"ooOpenChannel- %s (%s, %s)\n",
ooGetCapTypeText(epCap->cap), call->callType,
call->callToken);
ooFreeH245Message(call, ph245msg);
return OO_FAILED;
}
flcp->dataType.u.data = t38Cap;
}
else{
OOTRACEERR1("Error: Unhandled media type in ooOpenChannel\n");
return OO_FAILED;
}
flcp->multiplexParameters.t =
T_H245OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters;
flcp->multiplexParameters.u.h2250LogicalChannelParameters =
(H245H2250LogicalChannelParameters*)ASN1MALLOC(pctxt,
sizeof(H245H2250LogicalChannelParameters));
h2250lcp = flcp->multiplexParameters.u.h2250LogicalChannelParameters;
memset(h2250lcp, 0, sizeof(H245H2250LogicalChannelParameters));
h2250lcp->sessionID = session_id;
h2250lcp->mediaGuaranteedDelivery = 0;
h2250lcp->silenceSuppression = 0;
h2250lcp->m.mediaControlChannelPresent = 1;
h2250lcp->mediaControlChannel.t =
T_H245TransportAddress_unicastAddress;
h2250lcp->mediaControlChannel.u.unicastAddress = (H245UnicastAddress*)
ASN1MALLOC(pctxt, sizeof(H245UnicastAddress));
unicastAddrs = h2250lcp->mediaControlChannel.u.unicastAddress;
memset(unicastAddrs, 0, sizeof(H245UnicastAddress));
if (call->versionIP == 6) {
unicastAddrs->t = T_H245UnicastAddress_iP6Address;
unicastAddrs->u.iP6Address = (H245UnicastAddress_iP6Address*)
ASN1MALLOC(pctxt, sizeof(H245UnicastAddress_iP6Address));
iP6Address = unicastAddrs->u.iP6Address;
memset(iP6Address, 0, sizeof(H245UnicastAddress_iP6Address));
inet_pton(AF_INET6, pLogicalChannel->localIP, iP6Address->network.data);
iP6Address->network.numocts = 16;
iP6Address->tsapIdentifier = pLogicalChannel->localRtcpPort;
} else {
unicastAddrs->t = T_H245UnicastAddress_iPAddress;
unicastAddrs->u.iPAddress = (H245UnicastAddress_iPAddress*)
ASN1MALLOC(pctxt, sizeof(H245UnicastAddress_iPAddress));
iPAddress = unicastAddrs->u.iPAddress;
memset(iPAddress, 0, sizeof(H245UnicastAddress_iPAddress));
inet_pton(AF_INET, pLogicalChannel->localIP, iPAddress->network.data);
iPAddress->network.numocts = 4;
iPAddress->tsapIdentifier = pLogicalChannel->localRtcpPort;
}
pLogicalChannel->state = OO_LOGICALCHAN_PROPOSED;
OOTRACEDBGA4("Built OpenLogicalChannel-%s (%s, %s)\n",
ooGetCapTypeText(epCap->cap), call->callType,
call->callToken);
ret = ooSendH245Msg(call, ph245msg);
if(ret != OO_OK)
{
OOTRACEERR3("Error:Failed to enqueue OpenLogicalChannel to outbound "
"queue. (%s, %s)\n", call->callType,
call->callToken);
}
ooFreeH245Message(call, ph245msg);
return ret;
}
/* Used to build OLCs for fast connect. Keep in mind that forward and
reverse
are always with respect to the endpoint which proposes channels
TODO: Need to clean logical channel in case of failure. */
int ooBuildFastStartOLC
(OOH323CallData *call, H245OpenLogicalChannel *olc,
ooH323EpCapability *epCap, OOCTXT*pctxt, int dir)
{
OOBOOL reverse=FALSE, forward=FALSE;
unsigned sessionID=0;
H245OpenLogicalChannel_forwardLogicalChannelParameters *flcp=NULL;
H245OpenLogicalChannel_reverseLogicalChannelParameters *rlcp=NULL;
H245H2250LogicalChannelParameters *pH2250lcp1=NULL, *pH2250lcp2=NULL;
H245UnicastAddress *pUnicastAddrs=NULL, *pUniAddrs=NULL;
H245UnicastAddress_iPAddress *pIpAddrs=NULL, *pUniIpAddrs=NULL;
H245UnicastAddress_iP6Address *pIp6Addrs=NULL, *pUniIp6Addrs=NULL;
unsigned session_id = 0;
ooLogicalChannel *pLogicalChannel = NULL;
int outgoing=FALSE;
if(!strcmp(call->callType, "outgoing"))
outgoing = TRUE;
if(dir & OORX)
{
OOTRACEDBGA3("Building OpenLogicalChannel for Receive Capability "
"(%s, %s)\n", call->callType, call->callToken);
session_id = ooCallGenerateSessionID(call, epCap->capType, "receive");
pLogicalChannel = ooAddNewLogicalChannel(call,
olc->forwardLogicalChannelNumber, session_id,
"receive", epCap);
if(outgoing)
reverse = TRUE;
else
forward = TRUE;
}
else if(dir & OOTX)
{
OOTRACEDBGA3("Building OpenLogicalChannel for transmit Capability "
"(%s, %s)\n", call->callType, call->callToken);
session_id = ooCallGenerateSessionID(call, epCap->capType, "transmit");
pLogicalChannel = ooAddNewLogicalChannel(call,
olc->forwardLogicalChannelNumber, session_id,
"transmit", epCap);
if(outgoing)
forward = TRUE;
else
reverse = TRUE;
}
else if(dir & OORXTX)
{
OOTRACEDBGA3("Building OpenLogicalChannel for ReceiveAndTransmit "
"Capability (%s, %s)\n", call->callType, call->callToken);
reverse = 1;
forward = 1;
OOTRACEERR3("Symmetric capability is not supported as of now (%s, %s)\n",
call->callType, call->callToken);
return OO_FAILED;
}
if(forward)
{
OOTRACEDBGC3("Building forward olc. (%s, %s)\n", call->callType,
call->callToken);
flcp = &(olc->forwardLogicalChannelParameters);
memset(flcp, 0,
sizeof(H245OpenLogicalChannel_forwardLogicalChannelParameters));
if(epCap->capType == OO_CAP_TYPE_AUDIO) {
sessionID =1;
flcp->dataType.t = T_H245DataType_audioData;
flcp->dataType.u.audioData = ooCapabilityCreateAudioCapability(epCap,
pctxt, dir);
}
else if(epCap->capType == OO_CAP_TYPE_VIDEO) {
sessionID = 2;
flcp->dataType.t = T_H245DataType_videoData;
flcp->dataType.u.videoData = ooCapabilityCreateVideoCapability(epCap,
pctxt, dir);
}
flcp->multiplexParameters.t = T_H245OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters;
pH2250lcp1 = (H245H2250LogicalChannelParameters*)ASN1MALLOC(pctxt,
sizeof(H245H2250LogicalChannelParameters));
memset(pH2250lcp1, 0, sizeof(H245H2250LogicalChannelParameters));
flcp->multiplexParameters.t = T_H245OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters;
flcp->multiplexParameters.u.h2250LogicalChannelParameters = pH2250lcp1;
pH2250lcp1->sessionID = sessionID;
if(!outgoing)
{
pH2250lcp1->m.mediaChannelPresent = 1;
pH2250lcp1->mediaChannel.t =
T_H245TransportAddress_unicastAddress;
pUniAddrs = (H245UnicastAddress*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress));
memset(pUniAddrs, 0, sizeof(H245UnicastAddress));
pH2250lcp1->mediaChannel.u.unicastAddress = pUniAddrs;
if (call->versionIP == 6) {
pUniAddrs->t = T_H245UnicastAddress_iP6Address;
pUniIp6Addrs = (H245UnicastAddress_iP6Address*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress_iP6Address));
memset(pUniIp6Addrs, 0, sizeof(H245UnicastAddress_iP6Address));
pUniAddrs->u.iP6Address = pUniIp6Addrs;
inet_pton(AF_INET6, pLogicalChannel->localIP, pUniIp6Addrs->network.data);
pUniIp6Addrs->network.numocts = 16;
pUniIp6Addrs->tsapIdentifier = pLogicalChannel->localRtpPort;
} else {
pUniAddrs->t = T_H245UnicastAddress_iPAddress;
pUniIpAddrs = (H245UnicastAddress_iPAddress*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress_iPAddress));
memset(pUniIpAddrs, 0, sizeof(H245UnicastAddress_iPAddress));
pUniAddrs->u.iPAddress = pUniIpAddrs;
inet_pton(AF_INET, pLogicalChannel->localIP, pUniIpAddrs->network.data);
pUniIpAddrs->network.numocts = 4;
pUniIpAddrs->tsapIdentifier = pLogicalChannel->localRtpPort;
}
}
pH2250lcp1->m.mediaControlChannelPresent = 1;
pH2250lcp1->mediaControlChannel.t =
T_H245TransportAddress_unicastAddress;
pUnicastAddrs = (H245UnicastAddress*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress));
memset(pUnicastAddrs, 0, sizeof(H245UnicastAddress));
pH2250lcp1->mediaControlChannel.u.unicastAddress = pUnicastAddrs;
if (call->versionIP == 6) {
pUnicastAddrs->t = T_H245UnicastAddress_iP6Address;
pIp6Addrs = (H245UnicastAddress_iP6Address*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress_iP6Address));
memset(pIp6Addrs, 0, sizeof(H245UnicastAddress_iP6Address));
pUnicastAddrs->u.iP6Address = pIp6Addrs;
inet_pton(AF_INET6, pLogicalChannel->localIP, pIp6Addrs->network.data);
pIp6Addrs->network.numocts = 16;
pIp6Addrs->tsapIdentifier = pLogicalChannel->localRtcpPort;
} else {
pUnicastAddrs->t = T_H245UnicastAddress_iPAddress;
pIpAddrs = (H245UnicastAddress_iPAddress*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress_iPAddress));
memset(pIpAddrs, 0, sizeof(H245UnicastAddress_iPAddress));
pUnicastAddrs->u.iPAddress = pIpAddrs;
inet_pton(AF_INET, pLogicalChannel->localIP, pIpAddrs->network.data);
pIpAddrs->network.numocts = 4;
pIpAddrs->tsapIdentifier = pLogicalChannel->localRtcpPort;
}
if(!outgoing)
{
if(epCap->startReceiveChannel)
{
epCap->startReceiveChannel(call, pLogicalChannel);
OOTRACEINFO4("Receive channel of type %s started (%s, %s)\n",
(epCap->capType == OO_CAP_TYPE_AUDIO)?"audio":"video",
call->callType, call->callToken);
}
else{
OOTRACEERR4("ERROR:No callback registered to start receive %s"
" channel (%s, %s)\n",
(epCap->capType == OO_CAP_TYPE_AUDIO)?"audio":"video",
call->callType, call->callToken);
return OO_FAILED;
}
}
}
if(reverse)
{
OOTRACEDBGC3("Building reverse olc. (%s, %s)\n", call->callType,
call->callToken);
olc->forwardLogicalChannelParameters.dataType.t =
T_H245DataType_nullData;
olc->forwardLogicalChannelParameters.multiplexParameters.t =
T_H245OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_none;
olc->m.reverseLogicalChannelParametersPresent = 1;
rlcp = &(olc->reverseLogicalChannelParameters);
memset(rlcp, 0, sizeof(H245OpenLogicalChannel_reverseLogicalChannelParameters));
if(epCap->capType == OO_CAP_TYPE_AUDIO) {
sessionID = 1;
rlcp->dataType.t = T_H245DataType_audioData;
rlcp->dataType.u.audioData = ooCapabilityCreateAudioCapability(epCap,
pctxt, dir);
}
else if(epCap->capType == OO_CAP_TYPE_VIDEO) {
sessionID = 2;
rlcp->dataType.t = T_H245DataType_videoData;
rlcp->dataType.u.videoData = ooCapabilityCreateVideoCapability(epCap,
pctxt, dir);
}
rlcp->m.multiplexParametersPresent = 1;
rlcp->multiplexParameters.t = T_H245OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters;
pH2250lcp2 = (H245H2250LogicalChannelParameters*) ASN1MALLOC(pctxt, sizeof(H245H2250LogicalChannelParameters));
rlcp->multiplexParameters.u.h2250LogicalChannelParameters = pH2250lcp2;
memset(pH2250lcp2, 0, sizeof(H245H2250LogicalChannelParameters));
pH2250lcp2->sessionID = sessionID;
if(outgoing)
{
pH2250lcp2->m.mediaChannelPresent = 1;
pH2250lcp2->mediaChannel.t =
T_H245TransportAddress_unicastAddress;
pUnicastAddrs = (H245UnicastAddress*) memAlloc(pctxt,
sizeof(H245UnicastAddress));
memset(pUnicastAddrs, 0, sizeof(H245UnicastAddress));
pH2250lcp2->mediaChannel.u.unicastAddress = pUnicastAddrs;
/* May 20101022 */
if (call->versionIP == 6) {
pUnicastAddrs->t = T_H245UnicastAddress_iP6Address;
pIp6Addrs = (H245UnicastAddress_iP6Address*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress_iP6Address));
memset(pIp6Addrs, 0, sizeof(H245UnicastAddress_iP6Address));
pUnicastAddrs->u.iP6Address = pIp6Addrs;
inet_pton(AF_INET6, pLogicalChannel->localIP, pIp6Addrs->network.data);
pIp6Addrs->network.numocts = 16;
pIp6Addrs->tsapIdentifier = pLogicalChannel->localRtpPort;
} else {
pUnicastAddrs->t = T_H245UnicastAddress_iPAddress;
pIpAddrs = (H245UnicastAddress_iPAddress*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress_iPAddress));
memset(pIpAddrs, 0, sizeof(H245UnicastAddress_iPAddress));
pUnicastAddrs->u.iPAddress = pIpAddrs;
inet_pton(AF_INET, pLogicalChannel->localIP, pIpAddrs->network.data);
pIpAddrs->network.numocts = 4;
pIpAddrs->tsapIdentifier = pLogicalChannel->localRtpPort;
}
}
pH2250lcp2->m.mediaControlChannelPresent = 1;
pH2250lcp2->mediaControlChannel.t =
T_H245TransportAddress_unicastAddress;
pUniAddrs = (H245UnicastAddress*) ASN1MALLOC(pctxt, sizeof(H245UnicastAddress));
memset(pUniAddrs, 0, sizeof(H245UnicastAddress));
pH2250lcp2->mediaControlChannel.u.unicastAddress = pUniAddrs;
/* May 20101023 */
if (call->versionIP == 6) {
pUniAddrs->t = T_H245UnicastAddress_iP6Address;
pUniIp6Addrs = (H245UnicastAddress_iP6Address*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress_iP6Address));
memset(pUniIp6Addrs, 0, sizeof(H245UnicastAddress_iP6Address));
pUniAddrs->u.iP6Address = pUniIp6Addrs;
inet_pton(AF_INET6, pLogicalChannel->localIP, pUniIp6Addrs->network.data);
pUniIp6Addrs->network.numocts = 16;
pUniIp6Addrs->tsapIdentifier = pLogicalChannel->localRtcpPort;
} else {
pUniAddrs->t = T_H245UnicastAddress_iPAddress;
pUniIpAddrs = (H245UnicastAddress_iPAddress*) ASN1MALLOC(pctxt,
sizeof(H245UnicastAddress_iPAddress));
memset(pUniIpAddrs, 0, sizeof(H245UnicastAddress_iPAddress));
pUniAddrs->u.iPAddress = pUniIpAddrs;
inet_pton(AF_INET, pLogicalChannel->localIP, pUniIpAddrs->network.data);
pUniIpAddrs->network.numocts = 4;
pUniIpAddrs->tsapIdentifier = pLogicalChannel->localRtcpPort;
}
/*
In case of fast start, the local endpoint need to be ready to
receive all the media types proposed in the fast connect, before
the actual call is established.
*/
if(outgoing)
{
if(epCap->startReceiveChannel)
{
epCap->startReceiveChannel(call, pLogicalChannel);
OOTRACEINFO4("Receive channel of type %s started (%s, %s)\n",
(epCap->capType == OO_CAP_TYPE_AUDIO)?"audio":"video",
call->callType, call->callToken);
}
else{
OOTRACEERR4("ERROR:No callback registered to start receive %s "
"channel (%s, %s)\n",
(epCap->capType == OO_CAP_TYPE_AUDIO)?"audio":"video",
call->callType, call->callToken);
return OO_FAILED;
}
}
}
/* State of logical channel. for out going calls, as we are sending setup,
state of all channels are proposed, for incoming calls, state is
established. */
if(!outgoing) {
pLogicalChannel->state = OO_LOGICALCHAN_ESTABLISHED;
}
else {
/* Calling other ep, with SETUP message */
/* Call is "outgoing */
pLogicalChannel->state = OO_LOGICALCHAN_PROPOSEDFS;
}
return OO_OK;
}
int ooMSDTimerExpired(void *data)
{
ooTimerCallback *cbData = (ooTimerCallback*)data;
OOH323CallData *call = cbData->call;
OOTRACEINFO3("MasterSlaveDetermination timeout. (%s, %s)\n", call->callType,
call->callToken);
ASN1MEMFREEPTR(call->pctxt, cbData);
ooSendMasterSlaveDeterminationRelease(call);
if(call->callState < OO_CALL_CLEAR)
{
call->callState = OO_CALL_CLEAR;
call->callEndReason = OO_REASON_LOCAL_CLEARED;
}
return OO_OK;
}
int ooTCSTimerExpired(void *data)
{
ooTimerCallback *cbData = (ooTimerCallback*)data;
OOH323CallData *call = cbData->call;
OOTRACEINFO3("TerminalCapabilityExchange timeout. (%s, %s)\n",
call->callType, call->callToken);
ASN1MEMFREEPTR(call->pctxt, cbData);
ooSendTerminalCapabilitySetRelease(call);
if(call->callState < OO_CALL_CLEAR)
{
call->callState = OO_CALL_CLEAR;
call->callEndReason = OO_REASON_LOCAL_CLEARED;
}
return OO_OK;
}
int ooRTDTimerExpired(void *data)
{
ooTimerCallback *cbData = (ooTimerCallback*)data;
OOH323CallData *call = cbData->call;
OOTRACEINFO3("Time to send new RTD request. (%s, %s)\n",
call->callType, call->callToken);
ASN1MEMFREEPTR(call->pctxt, cbData);
ooSendRoundTripDelayRequest(call);
return OO_OK;
}
int ooOpenLogicalChannelTimerExpired(void *pdata)
{
ooTimerCallback *cbData = (ooTimerCallback*)pdata;
OOH323CallData *call = cbData->call;
ooLogicalChannel *pChannel = NULL;
OOTRACEINFO3("OpenLogicalChannelTimer expired. (%s, %s)\n", call->callType,
call->callToken);
pChannel = ooFindLogicalChannelByLogicalChannelNo(call,
cbData->channelNumber);
if(pChannel)
ooSendCloseLogicalChannel(call, pChannel);
if(call->callState < OO_CALL_CLEAR)
{
call->callState = OO_CALL_CLEAR;
call->callEndReason = OO_REASON_LOCAL_CLEARED;
}
ASN1MEMFREEPTR(call->pctxt, cbData);
return OO_OK;
}
int ooCloseLogicalChannelTimerExpired(void *pdata)
{
ooTimerCallback *cbData = (ooTimerCallback*)pdata;
OOH323CallData *call = cbData->call;
OOTRACEINFO3("CloseLogicalChannelTimer expired. (%s, %s)\n", call->callType,
call->callToken);
ooClearLogicalChannel(call, cbData->channelNumber);
if(call->callState < OO_CALL_CLEAR)
{
call->callState = OO_CALL_CLEAR;
call->callEndReason = OO_REASON_LOCAL_CLEARED;
}
ASN1MEMFREEPTR(call->pctxt, cbData);
return OO_OK;
}
int ooRequestChannelCloseTimerExpired(void *pdata)
{
int ret = 0;
ooLogicalChannel *pChannel = NULL;
ooTimerCallback *cbData = (ooTimerCallback*)pdata;
OOH323CallData *call = cbData->call;
OOTRACEINFO3("CloseLogicalChannelTimer expired. (%s, %s)\n", call->callType,
call->callToken);
pChannel = ooFindLogicalChannelByLogicalChannelNo(call,
cbData->channelNumber);
if(pChannel)
ooSendRequestChannelCloseRelease(call, cbData->channelNumber);
else
return OO_OK;
ret = ooClearLogicalChannel(call, cbData->channelNumber);
if(ret != OO_OK)
{
OOTRACEERR4("Error:Failed to clear logical channel %d. (%s, %s)\n",
cbData->channelNumber, call->callType, call->callToken);
}
if(call->callState < OO_CALL_CLEAR)
{
call->callState = OO_CALL_CLEAR;
call->callEndReason = OO_REASON_LOCAL_CLEARED;
}
ASN1MEMFREEPTR(call->pctxt, cbData);
return OO_OK;
}
int ooSessionTimerExpired(void *pdata)
{
int ret = 0;
ooTimerCallback *cbData = (ooTimerCallback*)pdata;
OOH323CallData *call = cbData->call;
OOTRACEINFO3("SessionTimer expired. (%s, %s)\n", call->callType,
call->callToken);
if(call->h245SessionState != OO_H245SESSION_IDLE &&
call->h245SessionState != OO_H245SESSION_CLOSED &&
call->h245SessionState != OO_H245SESSION_PAUSED) {
ret = ooCloseH245Connection(call);
if(ret != OO_OK) {
OOTRACEERR3("Error:Failed to close H.245 connection (%s, %s)\n",
call->callType, call->callToken);
}
}
memFreePtr(call->pctxt, cbData);
if(call->callState == OO_CALL_CLEAR_RELEASESENT)
call->callState = OO_CALL_CLEARED;
return OO_OK;
}
int ooGetIpPortFromH245TransportAddress
(OOH323CallData *call, H245TransportAddress *h245Address, char *ip,
int *port)
{
H245UnicastAddress *unicastAddress = NULL;
H245UnicastAddress_iPAddress *ipAddress = NULL;
H245UnicastAddress_iP6Address *ip6Address = NULL;
regmatch_t pmatch[1];
if(h245Address->t != T_H245TransportAddress_unicastAddress)
{
OOTRACEERR3("ERROR:Unsupported H245 address type "
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
unicastAddress = h245Address->u.unicastAddress;
if (call->versionIP == 6) {
if (unicastAddress->t != T_H245UnicastAddress_iP6Address) {
OOTRACEERR3("ERROR:H245 Address type is not IP6"
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
ip6Address = unicastAddress->u.iP6Address;
*port = ip6Address->tsapIdentifier;
inet_ntop(AF_INET6, ip6Address->network.data, ip, INET6_ADDRSTRLEN);
} else { if(unicastAddress->t != T_H245UnicastAddress_iPAddress)
{
OOTRACEERR3("ERROR:H245 Address type is not IP"
"(%s, %s)\n", call->callType, call->callToken);
return OO_FAILED;
}
ipAddress = unicastAddress->u.iPAddress;
*port = ipAddress->tsapIdentifier;
inet_ntop(AF_INET, ipAddress->network.data, ip, INET_ADDRSTRLEN);
}
if (call->rtpMaskStr[0]) {
if (regexec(&call->rtpMask->regex, ip, 1, pmatch, 0)) {
OOTRACEERR5("ERROR:H245 Address is not matched with filter %s/%s"
"(%s, %s)\n", ip, call->rtpMaskStr, call->callType, call->callToken);
return OO_FAILED;
}
}
return OO_OK;
}
int ooPrepareFastStartResponseOLC
(OOH323CallData *call, H245OpenLogicalChannel *olc,
ooH323EpCapability *epCap, OOCTXT*pctxt, int dir)
{
OOBOOL reverse=FALSE, forward=FALSE;
H245OpenLogicalChannel_forwardLogicalChannelParameters *flcp=NULL;
H245OpenLogicalChannel_reverseLogicalChannelParameters *rlcp=NULL;
H245H2250LogicalChannelParameters *pH2250lcp1=NULL, *pH2250lcp2=NULL;
H245UnicastAddress *pUnicastAddrs=NULL, *pUniAddrs=NULL;
H245UnicastAddress_iPAddress *pIpAddrs=NULL, *pUniIpAddrs=NULL;
H245UnicastAddress_iP6Address *pIp6Addrs=NULL, *pUniIp6Addrs=NULL;
unsigned session_id = 0;
ooLogicalChannel *pLogicalChannel = NULL;
if(dir & OORX)
{
OOTRACEDBGA3("ooPrepareFastStartResponseOLC for Receive Capability "
"(%s, %s)\n", call->callType, call->callToken);
session_id = ooCallGenerateSessionID(call, epCap->capType, "receive");
pLogicalChannel = ooAddNewLogicalChannel(call,
olc->forwardLogicalChannelNumber, session_id,
"receive", epCap);
forward = TRUE;
}
else if(dir & OOTX)
{
OOTRACEDBGA3("ooPrepareFastStartResponseOLC for transmit Capability "
"(%s, %s)\n", call->callType, call->callToken);
session_id = ooCallGenerateSessionID(call, epCap->capType, "transmit");
pLogicalChannel = ooAddNewLogicalChannel(call,
olc->forwardLogicalChannelNumber, session_id,
"transmit", epCap);
reverse = TRUE;
}
else if(dir & OORXTX)
{
OOTRACEDBGA3("ooPrepareFastStartResponseOLC for ReceiveAndTransmit "
"Capability (%s, %s)\n", call->callType, call->callToken);
reverse = 1;
forward = 1;
OOTRACEERR3("Symmetric capability is not supported as of now (%s, %s)\n",
call->callType, call->callToken);
return OO_FAILED;
}
if(forward)
{
OOTRACEDBGC3("Preparing olc for receive channel. (%s, %s)\n",
call->callType, call->callToken);
flcp = &(olc->forwardLogicalChannelParameters);
pH2250lcp1 = flcp->multiplexParameters.u.h2250LogicalChannelParameters;
pH2250lcp1->m.mediaChannelPresent = 1;
pH2250lcp1->mediaChannel.t = T_H245TransportAddress_unicastAddress;
pUniAddrs = (H245UnicastAddress*) memAllocZ(pctxt,
sizeof(H245UnicastAddress));
pH2250lcp1->mediaChannel.u.unicastAddress = pUniAddrs;
if (call->versionIP == 6) {
pUniIp6Addrs = (H245UnicastAddress_iP6Address*) memAllocZ(pctxt,
sizeof(H245UnicastAddress_iP6Address));
if(!pUniAddrs || !pUniIpAddrs) {
OOTRACEERR3("Error:Memory - ooPrepareFastStartResponseOLC - pUniAddrs"
"/pUniIpAddrs (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
pUniAddrs->t = T_H245UnicastAddress_iP6Address;
pUniAddrs->u.iP6Address = pUniIp6Addrs;
inet_pton(AF_INET6, pLogicalChannel->localIP, pUniIp6Addrs->network.data);
pUniIp6Addrs->network.numocts = 16;
pUniIp6Addrs->tsapIdentifier = pLogicalChannel->localRtpPort;
} else {
pUniIpAddrs = (H245UnicastAddress_iPAddress*) memAllocZ(pctxt,
sizeof(H245UnicastAddress_iPAddress));
if(!pUniAddrs || !pUniIpAddrs) {
OOTRACEERR3("Error:Memory - ooPrepareFastStartResponseOLC - pUniAddrs"
"/pUniIpAddrs (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
pUniAddrs->t = T_H245UnicastAddress_iPAddress;
pUniAddrs->u.iPAddress = pUniIpAddrs;
inet_pton(AF_INET, pLogicalChannel->localIP, pUniIpAddrs->network.data);
pUniIpAddrs->network.numocts = 4;
pUniIpAddrs->tsapIdentifier = pLogicalChannel->localRtpPort;
}
pH2250lcp1->m.mediaControlChannelPresent = 1;
pH2250lcp1->mediaControlChannel.t =
T_H245TransportAddress_unicastAddress;
pUnicastAddrs = (H245UnicastAddress*) memAllocZ(pctxt,
sizeof(H245UnicastAddress));
pH2250lcp1->mediaControlChannel.u.unicastAddress = pUnicastAddrs;
if (call->versionIP == 6) {
pIp6Addrs = (H245UnicastAddress_iP6Address*) memAllocZ(pctxt,
sizeof(H245UnicastAddress_iP6Address));
if(!pUnicastAddrs || !pIp6Addrs) {
OOTRACEERR3("Error:Memory - ooPrepareFastStartResponseOLC - "
"pUnicastAddrs/pIpAddrs (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
pUnicastAddrs->t = T_H245UnicastAddress_iP6Address;
pUnicastAddrs->u.iP6Address = pIp6Addrs;
inet_pton(AF_INET6, pLogicalChannel->localIP, pIp6Addrs->network.data);
pIp6Addrs->network.numocts = 16;
pIp6Addrs->tsapIdentifier = pLogicalChannel->localRtcpPort;
} else {
pIpAddrs = (H245UnicastAddress_iPAddress*) memAllocZ(pctxt,
sizeof(H245UnicastAddress_iPAddress));
if(!pUnicastAddrs || !pIpAddrs) {
OOTRACEERR3("Error:Memory - ooPrepareFastStartResponseOLC - "
"pUnicastAddrs/pIpAddrs (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
pUnicastAddrs->t = T_H245UnicastAddress_iPAddress;
pUnicastAddrs->u.iPAddress = pIpAddrs;
inet_pton(AF_INET, pLogicalChannel->localIP, pIpAddrs->network.data);
pIpAddrs->network.numocts = 4;
pIpAddrs->tsapIdentifier = pLogicalChannel->localRtcpPort;
}
}
if(reverse)
{
OOTRACEDBGC3("Building reverse olc. (%s, %s)\n", call->callType,
call->callToken);
rlcp = &(olc->reverseLogicalChannelParameters);
pH2250lcp2 = rlcp->multiplexParameters.u.h2250LogicalChannelParameters;
pH2250lcp2->m.mediaChannelPresent = 0;
memset(&pH2250lcp2->mediaChannel, 0, sizeof(H245TransportAddress));
pH2250lcp2->m.mediaControlChannelPresent = 1;
pH2250lcp2->mediaControlChannel.t =
T_H245TransportAddress_unicastAddress;
pUniAddrs = (H245UnicastAddress*) memAlloc(pctxt,
sizeof(H245UnicastAddress));
pH2250lcp2->mediaControlChannel.u.unicastAddress = pUniAddrs;
if (call->versionIP == 6) {
pUniIp6Addrs = (H245UnicastAddress_iP6Address*) memAlloc(pctxt,
sizeof(H245UnicastAddress_iP6Address));
if(!pUniAddrs || !pUniIp6Addrs) {
OOTRACEERR3("Error:Memory - ooPrepareFastStartResponseOLC - "
"pUniAddrs/pUniIpAddrs (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
pUniAddrs->t = T_H245UnicastAddress_iP6Address;
pUniAddrs->u.iP6Address = pUniIp6Addrs;
inet_pton(AF_INET6, pLogicalChannel->localIP, pUniIp6Addrs->network.data);
pUniIp6Addrs->network.numocts = 16;
pUniIp6Addrs->tsapIdentifier = pLogicalChannel->localRtcpPort;
} else {
pUniIpAddrs = (H245UnicastAddress_iPAddress*) memAlloc(pctxt,
sizeof(H245UnicastAddress_iPAddress));
if(!pUniAddrs || !pUniIpAddrs) {
OOTRACEERR3("Error:Memory - ooPrepareFastStartResponseOLC - "
"pUniAddrs/pUniIpAddrs (%s, %s)\n", call->callType,
call->callToken);
return OO_FAILED;
}
pH2250lcp2->mediaControlChannel.u.unicastAddress = pUniAddrs;
pUniAddrs->t = T_H245UnicastAddress_iPAddress;
pUniAddrs->u.iPAddress = pUniIpAddrs;
inet_pton(AF_INET, pLogicalChannel->localIP, pUniIpAddrs->network.data);
pUniIpAddrs->network.numocts = 4;
pUniIpAddrs->tsapIdentifier = pLogicalChannel->localRtcpPort;
}
}
pLogicalChannel->state = OO_LOGICALCHAN_ESTABLISHED;
return OO_OK;
}