static NwGtpv1uRcT
nwGtpv1uInitialReq( NW_IN NwGtpv1uStackT *thiz, NW_IN NwGtpv1uUlpApiT *pUlpReq)
{
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
NwGtpv1uTrxnT *pTrxn;
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_ENTER(thiz);
#endif
/* Create New Transaction */
rc = nwGtpv1uTrxnNew(thiz, &pTrxn);
if(pTrxn) {
rc = nwGtpv1uTrxnCreateAndSendMsg(thiz,
pTrxn,
pUlpReq->apiInfo.initialReqInfo.peerIp,
pUlpReq->apiInfo.initialReqInfo.peerPort,
(NwGtpv1uMsgT *) pUlpReq->hMsg);
if(rc == NW_GTPV1U_OK) {
/* Insert into search tree */
RB_INSERT(NwGtpv1uOutstandingTxSeqNumTrxnMap, &(thiz->outstandingTxSeqNumMap),
pTrxn);
} else {
rc = nwGtpv1uTrxnDelete(&pTrxn);
NW_ASSERT(rc == NW_GTPV1U_OK);
}
}
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
return rc;
}
NwGtpv1uRcT
nwGtpv1uProcessTimeout(void *timeoutInfo)
{
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
NwGtpv1uStackT *thiz;
NW_ASSERT(timeoutInfo != NULL);
thiz = (NwGtpv1uStackT *) (((NwGtpv1uTimeoutInfoT *) timeoutInfo)->hStack);
NW_ASSERT(thiz != NULL);
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_ENTER(thiz);
#endif
GTPU_DEBUG("Received timeout event from ULP with timeoutInfo 0x%p!\n",
timeoutInfo);
rc = (((NwGtpv1uTimeoutInfoT *) timeoutInfo)->timeoutCallbackFunc) (timeoutInfo);
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
return rc;
}
static NwGtpv1uRcT
nwGtpv1uCreateAndSendMsg( NwGtpv1uStackT *thiz, uint32_t peerIp, uint16_t peerPort,
NwGtpv1uMsgT *pMsg)
{
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
uint8_t *msgHdr;
NW_ASSERT(thiz);
NW_ASSERT(pMsg);
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_ENTER(thiz);
#endif
msgHdr = &pMsg->msgBuf[pMsg->msgBufOffset];
NW_ASSERT(msgHdr != NULL);
*(msgHdr++) = (pMsg->version << 5) |
(pMsg->protocolType << 4) |
(pMsg->extHdrFlag << 2) |
(pMsg->seqNumFlag << 1) |
(pMsg->npduNumFlag);
*(msgHdr++) = (pMsg->msgType);
*((uint16_t *) msgHdr) = htons(pMsg->msgLen);
msgHdr += 2;
*((uint32_t *) msgHdr) = htonl(pMsg->teid);
msgHdr += 4;
#if defined(LOG_GTPU) && LOG_GTPU > 0
GTPU_DEBUG("nwGtpv1uCreateAndSendMsg to teid %u length %d offset %d\n",
pMsg->teid,
pMsg->msgLen,
pMsg->msgBufOffset);
#endif
if(pMsg->seqNumFlag || pMsg->extHdrFlag || pMsg->npduNumFlag) {
*((uint16_t *) msgHdr) = (pMsg->seqNumFlag ? htons(pMsg->seqNum) : 0x0000);
msgHdr += 2;
*((uint8_t *) msgHdr) = (pMsg->npduNumFlag ? htons(pMsg->npduNum) : 0x00);
msgHdr++;
*((uint8_t *) msgHdr) = (pMsg->extHdrFlag ? htons(pMsg->nextExtHdrType) : 0x00);
msgHdr++;
}
rc = thiz->udp.udpDataReqCallback(thiz->udp.hUdp,
pMsg->msgBuf,
pMsg->msgBufLen,
pMsg->msgBufOffset,
peerIp,
peerPort);
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
return rc;
}
static NwSdpRcT
nwSdpUpdateFlow( NW_IN NwSdpT* thiz, NW_IN NwSdpUlpApiT *pUlpReq)
{
NwSdpRcT rc;
NW_ENTER(thiz);
NW_LEAVE(thiz);
return rc;
}
NwGtpv1uRcT
nwGtpv1uProcessUlpReq( NW_IN NwGtpv1uStackHandleT hGtpuStackHandle,
NW_IN NwGtpv1uUlpApiT *pUlpReq)
{
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
NwGtpv1uStackT *thiz = (NwGtpv1uStackT *) hGtpuStackHandle;
NW_ASSERT(thiz);
NW_ASSERT(pUlpReq != NULL);
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_ENTER(thiz);
#endif
switch(pUlpReq->apiType) {
case NW_GTPV1U_ULP_API_CREATE_TUNNEL_ENDPOINT: {
GTPU_DEBUG("Received NW_GTPV1U_ULP_API_CREATE_TUNNEL_ENDPOINT from ulp\n");
rc = NwGtpv1uCreateTunnelEndPoint(thiz,
pUlpReq->apiInfo.createTunnelEndPointInfo.teid,
pUlpReq->apiInfo.createTunnelEndPointInfo.hUlpSession,
&(pUlpReq->apiInfo.createTunnelEndPointInfo.hStackSession));
}
break;
case NW_GTPV1U_ULP_API_DESTROY_TUNNEL_ENDPOINT: {
GTPU_DEBUG("Received destroy session req from ulp\n");
rc = nwGtpv1uDestroyTunnelEndPoint(thiz, pUlpReq);
}
break;
case NW_GTPV1U_ULP_API_INITIAL_REQ: {
GTPU_DEBUG("Received initial req from ulp\n");
rc = nwGtpv1uInitialReq(thiz, pUlpReq);
}
break;
case NW_GTPV1U_ULP_API_SEND_TPDU: {
#if defined(LOG_GTPU) && LOG_GTPU > 0
GTPU_DEBUG("Received send tpdu req from ulp\n");
#endif
rc = nwGtpv1uSendto(thiz, pUlpReq);
}
break;
default:
GTPU_DEBUG("Unsupported API received from ulp\n");
rc = NW_GTPV1U_FAILURE;
break;
}
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
return rc;
}
static NwGtpv1uRcT
NwGtpv1uCreateTunnelEndPoint( NW_IN NwGtpv1uStackT *thiz,
NW_IN uint32_t teid,
NW_IN NwGtpv1uUlpSessionHandleT hUlpSession,
NW_OUT NwGtpv1uStackSessionHandleT *phStackSession )
{
NwGtpv1uRcT rc = NW_GTPV1U_OK;
NwGtpv1uTunnelEndPointT *pTunnelEndPoint;
NwGtpv1uTunnelEndPointT *pCollision;
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_ENTER(thiz);
#endif
pTunnelEndPoint = nwGtpTunnelEndPointNew(thiz);
if(pTunnelEndPoint) {
pTunnelEndPoint->teid = teid;
pTunnelEndPoint->pStack = thiz;
pTunnelEndPoint->hUlpSession = hUlpSession;
pCollision = RB_INSERT(NwGtpv1uTunnelEndPointIdentifierMap, &(thiz->teidMap),
pTunnelEndPoint);
if(pCollision) {
GTPU_ERROR("Tunnel end-point cannot be created for teid 0x%x. "
"Tunnel already exists", teid);
rc = nwGtpTunnelEndPointDestroy(thiz, pTunnelEndPoint);
NW_ASSERT(rc == NW_GTPV1U_OK);
*phStackSession = (NwGtpv1uStackSessionHandleT) NULL;
NW_ASSERT(0);
rc = NW_GTPV1U_FAILURE;
} else {
*phStackSession = (NwGtpv1uStackSessionHandleT) pTunnelEndPoint;
pTunnelEndPoint = RB_FIND(NwGtpv1uTunnelEndPointIdentifierMap,
&(thiz->teidMap), pTunnelEndPoint);
NW_ASSERT(pTunnelEndPoint);
GTPU_DEBUG("Tunnel end-point 0x%p creation successful for teid 0x%x %u(dec)",
pTunnelEndPoint, (unsigned int)teid, (unsigned int)teid);
}
} else {
*phStackSession = (NwGtpv1uStackSessionHandleT) NULL;
rc = NW_GTPV1U_FAILURE;
}
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
return rc;
}
NwSdpRcT
nwSdpProcessIpv4DataInd( NW_IN NwSdpHandleT hSdp,
NW_IN NwSdpServiceHandleT hIpv4,
NW_IN NwU8T* ipv4Buf,
NW_IN NwU32T ipv4BufLen)
{
NwSdpRcT rc = NW_SDP_OK;
NwSdpT* thiz;
thiz = (NwSdpT*) hSdp;
NW_ENTER(thiz);
rc = nwIpv4ProcessLlpDataInd(thiz->hIpv4Stack, ipv4Buf, ipv4BufLen);
NW_LEAVE(thiz);
return rc;
}
NwSdpRcT
nwSdpProcessGreDataInd( NW_IN NwSdpHandleT hSdp,
NW_IN NwSdpServiceHandleT hGre,
NW_IN NwCharT* greBuf,
NW_IN NwU32T greBufLen,
NW_IN NwU16T peerPort,
NW_IN NwU32T peerIp)
{
NwSdpRcT rc;
NwSdpT* thiz;
thiz = (NwSdpT*) hSdp;
NW_ENTER(thiz);
rc = nwGreProcessUdpReq(hGre, greBuf, greBufLen, peerPort, peerIp);
NW_LEAVE(thiz);
return rc;
}
NwSdpRcT
nwSdpProcessUlpReq( NW_IN NwSdpHandleT hSdp,
NW_IN NwSdpUlpApiT *pUlpReq)
{
NwSdpRcT rc;
NwSdpT* thiz = (NwSdpT*) hSdp;
NW_ASSERT(thiz);
NW_ASSERT(pUlpReq != NULL);
NW_ENTER(thiz);
switch(pUlpReq->apiType)
{
case NW_SDP_ULP_API_CREATE_FLOW:
{
NW_LOG(thiz, NW_LOG_LEVEL_DEBG, "Received create flow request from ulp");
rc = nwSdpCreateFlow(thiz, pUlpReq);
}
break;
case NW_SDP_ULP_API_DESTROY_FLOW:
{
NW_LOG(thiz, NW_LOG_LEVEL_DEBG, "Received destroy flow request from ulp");
rc = nwSdpDestroyFlow(thiz, pUlpReq);
}
break;
case NW_SDP_ULP_API_UPDATE_FLOW:
{
NW_LOG(thiz, NW_LOG_LEVEL_DEBG, "Received update flow request from ulp");
rc = nwSdpUpdateFlow(thiz, pUlpReq);
}
break;
default:
NW_LOG(thiz, NW_LOG_LEVEL_ERRO, "Unsupported API received from ulp");
rc = NW_SDP_FAILURE;
break;
}
NW_LEAVE(thiz);
return rc;
}
NwSdpRcT
nwSdpProcessUdpDataInd( NW_IN NwSdpHandleT hSdp,
NW_IN NwU8T* udpData,
NW_IN NwU32T udpDataLen,
NW_IN NwU16T peerPort,
NW_IN NwU32T peerIp)
{
NwSdpRcT rc;
NwSdpT* thiz;
thiz = (NwSdpT*) hSdp;
NW_ASSERT(thiz);
NW_ENTER(thiz);
/* TODO : Process UDP message */
NW_LEAVE(thiz);
return rc;
}
NwSdpRcT
nwSdpProcessGtpuDataInd( NW_IN NwSdpHandleT hSdp,
NW_IN NwU8T* udpData,
NW_IN NwU32T udpDataLen,
NW_IN NwU16T peerPort,
NW_IN NwU32T peerIp)
{
NwSdpRcT rc;
NwSdpT* thiz;
NwU16T msgType;
thiz = (NwSdpT*) hSdp;
NW_ASSERT(thiz);
NW_ENTER(thiz);
rc = nwGtpv1uProcessUdpReq(thiz->hGtpv1uStack, udpData, udpDataLen, peerPort, peerIp);
NW_LEAVE(thiz);
return rc;
}
NwSdpRcT
nwSdpProcessTimeout(void* timeoutInfo)
{
NwSdpRcT rc;
NwSdpT* thiz;
NW_ASSERT(timeoutInfo != NULL);
thiz = (NwSdpT*) (((NwSdpTimeoutInfoT*) timeoutInfo)->hStack);
NW_ASSERT(thiz != NULL);
NW_ENTER(thiz);
NW_LOG(thiz, NW_LOG_LEVEL_DEBG, "Received timeout event from ULP with timeoutInfo 0x%x!", (NwU32T)timeoutInfo);
rc = (((NwSdpTimeoutInfoT*) timeoutInfo)->timeoutCallbackFunc) (timeoutInfo);
NW_LEAVE(thiz);
return rc;
}
static NwGtpv1uRcT
nwGtpv1uSendUlpMessageIndication( NW_IN NwGtpv1uStackT *thiz,
NW_IN uint32_t hUlpTrxn,
NW_IN uint32_t apiType,
NW_IN uint32_t msgType,
NW_IN uint32_t peerIp,
NW_IN uint16_t peerPort,
NW_IN uint8_t *pMsgBuf,
NW_IN uint16_t msgLength)
{
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
NwGtpv1uUlpApiT ulpApi;
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_ENTER(thiz);
#endif
ulpApi.apiType = apiType;
ulpApi.apiInfo.recvMsgInfo.msgType = msgType;
ulpApi.apiInfo.recvMsgInfo.hUlpTrxn = hUlpTrxn;
ulpApi.apiInfo.recvMsgInfo.peerIp = peerIp;
ulpApi.apiInfo.recvMsgInfo.peerPort = peerPort;
if(pMsgBuf && msgLength) {
rc = nwGtpv1uMsgFromBufferNew((NwGtpv1uStackHandleT)thiz, pMsgBuf, msgLength,
&(ulpApi.apiInfo.recvMsgInfo.hMsg));
NW_ASSERT(rc == NW_GTPV1U_OK);
}
rc = thiz->ulp.ulpReqCallback(thiz->ulp.hUlp, &ulpApi);
NW_ASSERT(rc == NW_GTPV1U_OK);
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
return rc;
}
static NwGtpv1uRcT
nwGtpv1uSendto( NwGtpv1uStackT *thiz, NW_IN NwGtpv1uUlpApiT *pUlpReq)
{
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
NW_ASSERT(thiz);
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_ENTER(thiz);
#endif
(void) nwGtpv1uMsgSetTeid(pUlpReq->apiInfo.sendtoInfo.hMsg,
pUlpReq->apiInfo.sendtoInfo.teid);
rc = nwGtpv1uCreateAndSendMsg(thiz,
pUlpReq->apiInfo.sendtoInfo.ipAddr,
2152,
(NwGtpv1uMsgT *) (NwGtpv1uMsgT *) pUlpReq->apiInfo.sendtoInfo.hMsg);
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
return rc;
}
static NwSdpRcT
nwSdpCreateFlow( NW_IN NwSdpT* thiz,
NW_IN NwSdpUlpApiT *pUlpReq)
{
NwSdpRcT rc = NW_SDP_OK;
NwSdpFlowContextT* pFlowContext;
NwSdpCreateFlowInfoT* pCreateFlowInfo;
NW_ENTER(thiz);
pFlowContext = nwSdpFlowContextNew(thiz);
if(pFlowContext)
{
pCreateFlowInfo = &(pUlpReq->apiInfo.createFlowInfo);
pFlowContext->ingressEndPoint = pCreateFlowInfo->ingressEndPoint;
pFlowContext->egressEndPoint = pCreateFlowInfo->egressEndPoint;
if(pFlowContext->egressEndPoint.flowType == NW_FLOW_TYPE_GTPU)
{
NW_ASSERT(pFlowContext->egressEndPoint.ipv4Addr != 0);
}
rc = nwSdpCreateFlowEndPoint(thiz, pFlowContext, &pFlowContext->ingressEndPoint);
NW_ASSERT(rc == NW_SDP_OK);
pFlowContext->pStack = thiz;
}
else
{
NW_ASSERT(pFlowContext);
}
pUlpReq->apiInfo.createFlowInfo.hSdpSession = (NwSdpSessionHandleT) pFlowContext;
NW_LEAVE(thiz);
return rc;
}
NwGtpv1uRcT
nwGtpv1uProcessUdpReq( NW_IN NwGtpv1uStackHandleT hGtpuStackHandle,
NW_IN uint8_t *udpData,
NW_IN uint32_t udpDataLen,
NW_IN uint16_t peerPort,
NW_IN uint32_t peerIp)
{
NwGtpv1uRcT ret = NW_GTPV1U_FAILURE;
NwGtpv1uStackT *thiz;
uint16_t msgType;
#if defined(ENB_MODE)
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_PROCESS_UDP_REQ, VCD_FUNCTION_IN);
#endif
thiz = (NwGtpv1uStackT *) hGtpuStackHandle;
NW_ASSERT(thiz);
msgType = *((uint8_t *)(udpData + 1));
switch(msgType) {
case NW_GTP_ECHO_REQ:
GTPU_DEBUG("NW_GTP_ECHO_REQ\n");
ret = nwGtpv1uHandleEchoReq( thiz, udpData, udpDataLen, peerPort, peerIp);
break;
case NW_GTP_ERROR_INDICATION:
GTPU_DEBUG("NW_GTP_ERROR_INDICATION\n");
ret = nwGtpv1uSendUlpMessageIndication( thiz,
0,
NW_GTPV1U_ULP_API_RECV_MSG,
msgType,
peerIp,
peerPort,
udpData,
udpDataLen);
NW_ASSERT(ret == NW_GTPV1U_OK);
break;
case NW_GTP_ECHO_RSP:
GTPU_DEBUG("NW_GTP_ECHO_RSP\n");
ret = NW_GTPV1U_OK;
break;
case NW_GTP_GPDU:
#if defined(LOG_GTPU) && LOG_GTPU > 0
GTPU_DEBUG("NW_GTP_GPDU: DATA COMING FROM UDP\n");
#endif
ret = nwGtpv1uProcessGpdu(thiz, udpData, udpDataLen, peerIp);
break;
default:
ret = NW_GTPV1U_FAILURE;
NW_ASSERT(0);
break;
}
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
#if defined(ENB_MODE)
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_PROCESS_UDP_REQ, VCD_FUNCTION_OUT);
#endif
return ret;
}
static NwGtpv1uRcT
nwGtpv1uProcessGpdu( NwGtpv1uStackT *thiz,
NW_IN uint8_t *gpdu,
NW_IN uint32_t gpduLen,
NW_IN uint32_t peerIp)
{
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
NwGtpv1uMsgHeaderT *msgHdr = NULL;
NwGtpv1uTunnelEndPointT *pTunnelEndPoint = NULL;
NwGtpv1uTunnelEndPointT tunnelEndPointKey;
// uint16_t hdr_len = 0;
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_ENTER(thiz);
#endif
// no buffer offset
msgHdr = (NwGtpv1uMsgHeaderT *) gpdu;
tunnelEndPointKey.teid = ntohl(msgHdr->teid);
pTunnelEndPoint = RB_FIND(NwGtpv1uTunnelEndPointIdentifierMap,
&(thiz->teidMap), &tunnelEndPointKey);
if(pTunnelEndPoint) {
NwGtpv1uMsgHandleT hMsg;
rc = nwGtpv1uMsgFromBufferNew( (NwGtpv1uStackHandleT)thiz,
(uint8_t *)gpdu,
gpduLen,
&hMsg);
/*
uint8_t* msgBuf;
uint32_t msgBufLen;
uint32_t msgBufOffset;
*/
if(NW_GTPV1U_OK == rc) {
NwGtpv1uMsgT *pMsg = (NwGtpv1uMsgT *) hMsg;
#if defined(LOG_GTPU) && LOG_GTPU > 0
GTPU_DEBUG("Received T-PDU over tunnel end-point '%x' of size %u (%u) (decapsulated %u)from "NW_IPV4_ADDR"\n",
ntohl(msgHdr->teid), gpduLen, pMsg->msgLen, pMsg->msgBufLen, NW_IPV4_ADDR_FORMAT((peerIp)));
#endif
MSC_LOG_RX_MESSAGE(
(thiz->stackType == GTPU_STACK_ENB) ? MSC_GTPU_ENB:MSC_GTPU_SGW,
(thiz->stackType == GTPU_STACK_ENB) ? MSC_GTPU_SGW:MSC_GTPU_ENB,
NULL,
0,
" G-PDU ltid %u size %u",
tunnelEndPointKey.teid,
gpduLen);
rc = nwGtpSessionSendMsgApiToUlpEntity(pTunnelEndPoint, pMsg);
}
} else {
MSC_LOG_RX_DISCARDED_MESSAGE(
(thiz->stackType == GTPU_STACK_ENB) ? MSC_GTPU_ENB:MSC_GTPU_SGW,
(thiz->stackType == GTPU_STACK_ENB) ? MSC_GTPU_SGW:MSC_GTPU_ENB,
NULL,
0,
" G-PDU ltid %u size %u",
tunnelEndPointKey.teid,
gpduLen);
GTPU_ERROR("Received T-PDU over non-existent tunnel end-point '%x' from "NW_IPV4_ADDR"\n",
ntohl(msgHdr->teid), NW_IPV4_ADDR_FORMAT((peerIp)));
}
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
return rc;
}
