/* This file contains all EGTP related functionality */
#include "common_def.h"
+#include "OCTET_STRING.h"
+#include "cu_stub_sctp.h"
+#include "cu_f1ap_msg_hdl.h"
#include "cu_stub_egtp.h"
-#include "du_log.h"
-
-/* Global variable declaration */
-EgtpGlobalCb egtpCb;
+#include "cu_stub.h"
+#include "cm_inet.h"
+#include "cm_tpt.h"
+
+#include "cm_inet.x"
+#include "cm_tpt.x"
/**************************************************************************
* @brief Task Initiation callback function.
{
DU_LOG("\n\nDEBUG --> EGTP : Initializing");
memset (&egtpCb, 0, sizeof(EgtpGlobalCb));
+
+ //Initializing with INVALID value
+ memset(egtpCb.gCntPdu, 0xFF , sizeof(uint8_t)*(MAX_TEID+1));
protType = CM_INET_PROTO_UDP;
return ROK;
}
uint8_t egtpInitReq()
{
uint8_t ret = ROK;
- EgtpTnlEvt tnlEvt;
-
+
+ egtpCb.egtpCfg = cuCb.cuCfgParams.egtpParams;
ret = cuEgtpCfgReq();
if(ret != ROK)
{
return (ret);
}
- tnlEvt.action = EGTP_TNL_MGMT_ADD;
- tnlEvt.lclTeid = 10;
- tnlEvt.remTeid = 1;
- ret = cuEgtpTnlMgmtReq(tnlEvt);
- if(ret != ROK)
- {
- DU_LOG("\nERROR --> EGTP : Tunnel management request failed");
- return RFAILED;
- }
-
return ret;
} /* egtpInitReq */
* ***********************************************************************/
S16 cuEgtpCfgReq()
{
- uint8_t ret;
-
- memcpy(&egtpCb.egtpCfg, &cuCfgParams.egtpParams, sizeof(EgtpParams));
-
- egtpCb.recvTptSrvr.addr.address = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.localIp.ipV4Addr);
- egtpCb.recvTptSrvr.addr.port = EGTP_DFLT_PORT;
+ uint8_t ret, destIdx =0;
+
+ memcpy(&egtpCb.egtpCfg, &cuCb.cuCfgParams.egtpParams, sizeof(CuEgtpParams));
+
+ for(destIdx=0; destIdx < egtpCb.egtpCfg.numDu; destIdx++)
+ {
+ egtpCb.recvTptSrvr.addr.address = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.egtpAssoc[destIdx].localIp.ipV4Addr);
+ egtpCb.recvTptSrvr.addr.port = EGTP_RECVR_PORT;
- egtpCb.dstCb.dstIp = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.destIp.ipV4Addr);
- egtpCb.dstCb.dstPort = egtpCb.egtpCfg.destPort;
- egtpCb.dstCb.sendTptSrvr.addr.address = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.localIp.ipV4Addr);
- egtpCb.dstCb.sendTptSrvr.addr.port = egtpCb.egtpCfg.localPort;
- egtpCb.dstCb.numTunn = 0;
+ egtpCb.dstCb[destIdx].duId = destIdx+1;
+ egtpCb.dstCb[destIdx].dstIp = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.egtpAssoc[destIdx].destIp.ipV4Addr);
+ egtpCb.dstCb[destIdx].dstPort = egtpCb.egtpCfg.egtpAssoc[destIdx].destPort;
+ egtpCb.dstCb[destIdx].sendTptSrvr.addr.address = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.egtpAssoc[destIdx].localIp.ipV4Addr);
+ egtpCb.dstCb[destIdx].sendTptSrvr.addr.port = egtpCb.egtpCfg.egtpAssoc[destIdx].localPort;
+ egtpCb.dstCb[destIdx].numTunn = 0;
- ret = cmHashListInit(&(egtpCb.dstCb.teIdLst), 1024, sizeof(EgtpTeIdCb), FALSE, CM_HASH_KEYTYPE_UINT32_MOD, CU_APP_MEM_REG, CU_POOL);
+ ret = cmHashListInit(&(egtpCb.dstCb[destIdx].teIdLst), 1024, sizeof(EgtpTeIdCb), FALSE, CM_HASH_KEYTYPE_UINT32_MOD, CU_APP_MEM_REG, CU_POOL);
- if(ret != ROK)
- {
- DU_LOG("\nERROR --> EGTP : TeId hash list initialization failed");
- return RFAILED;
- }
- else
- {
- DU_LOG("\nINFO --> EGTP : Configuration successful");
+ if(ret != ROK)
+ {
+ DU_LOG("\nERROR --> EGTP : TeId hash list initialization failed");
+ return RFAILED;
+ }
+ else
+ {
+ DU_LOG("\nINFO --> EGTP : Configuration successful");
+ }
}
+ egtpCb.numDu = egtpCb.egtpCfg.numDu;
return ROK;
} /* cuEgtpCfgReq */
S16 cuEgtpSrvOpenReq(Pst *pst)
{
- uint8_t ret;
+ uint8_t ret, destIdx;
DU_LOG("\nINFO --> EGTP : Received open server request");
-
+
sockType = CM_INET_DGRAM;
if((ret = (cmInetSocket(sockType, &(egtpCb.recvTptSrvr.sockFd), protType))) != ROK)
{
DU_LOG("\nERROR --> EGTP : Failed to bind socket");
return RFAILED;
}
+
+ for(destIdx=0; destIdx < egtpCb.egtpCfg.numDu; destIdx++)
+ {
+ if(ret = (cmInetSocket(sockType, &(egtpCb.dstCb[destIdx].sendTptSrvr.sockFd), protType)) != ROK)
+ {
+ DU_LOG("\nERROR --> EGTP : Failed to open UDP socket");
+ return RFAILED;
+ }
- if(ret = (cmInetSocket(sockType, &(egtpCb.dstCb.sendTptSrvr.sockFd), protType)) != ROK)
- {
- DU_LOG("\nERROR --> EGTP : Failed to open UDP socket");
- return RFAILED;
- }
-
- ret = cmInetBind(&(egtpCb.dstCb.sendTptSrvr.sockFd), &(egtpCb.dstCb.sendTptSrvr.addr));
- if(ret != ROK)
- {
- DU_LOG("\nERROR --> EGTP : Failed to bind socket");
- return RFAILED;
- }
-
- /* TODO: set socket options */
+ ret = cmInetBind(&(egtpCb.dstCb[destIdx].sendTptSrvr.sockFd), &(egtpCb.dstCb[destIdx].sendTptSrvr.addr));
+ if(ret != ROK)
+ {
+ DU_LOG("\nERROR --> EGTP : Failed to bind socket");
+ return RFAILED;
+ }
- DU_LOG("\nINFO --> EGTP : Receiver socket[%d] and Sender socket[%d] open", egtpCb.recvTptSrvr.sockFd.fd,\
- egtpCb.dstCb.sendTptSrvr.sockFd.fd);
+ /* TODO: set socket options */
+
+ DU_LOG("\nINFO --> EGTP : Receiver socket[%d] and Sender socket[%d] open", egtpCb.recvTptSrvr.sockFd.fd,\
+ egtpCb.dstCb[destIdx].sendTptSrvr.sockFd.fd);
+ }
return ROK;
} /* cuEgtpSrvOpenReq */
*
* ***************************************************************************/
-S16 cuEgtpTnlMgmtReq(EgtpTnlEvt tnlEvt)
+S16 cuEgtpTnlMgmtReq(uint32_t duId, EgtpTnlEvt tnlEvt)
{
S8 ret;
{
case EGTP_TNL_MGMT_ADD:
{
- ret = cuEgtpTnlAdd(tnlEvt);
+ ret = cuEgtpTnlAdd(duId, tnlEvt);
break;
}
case EGTP_TNL_MGMT_MOD:
{
- ret = cuEgtpTnlMod(tnlEvt);
+ ret = cuEgtpTnlMod(duId, tnlEvt);
break;
}
case EGTP_TNL_MGMT_DEL:
{
- ret = cuEgtpTnlDel(tnlEvt);
+ ret = cuEgtpTnlDel(duId, tnlEvt);
break;
}
default:
* RFAILED - failure
*
* ***************************************************************************/
-S16 cuEgtpTnlAdd(EgtpTnlEvt tnlEvt)
+S16 cuEgtpTnlAdd(uint32_t duId, EgtpTnlEvt tnlEvt)
{
S16 ret;
EgtpTeIdCb *teidCb;
return RFAILED;
}
-
memset(teidCb, 0, sizeof(EgtpTeIdCb));
teidCb->teId = tnlEvt.lclTeid;
teidCb->remTeId = tnlEvt.remTeid;
- ret = cmHashListInsert(&(egtpCb.dstCb.teIdLst), (PTR)teidCb, (uint8_t *)&(teidCb->teId), sizeof(uint32_t));
+ ret = cmHashListInsert(&(egtpCb.dstCb[duId-1].teIdLst), (PTR)teidCb, (uint8_t *)&(teidCb->teId), sizeof(uint32_t));
if(ret != ROK)
{
DU_LOG("\nERROR --> EGTP : Failed to insert in hash list");
CU_FREE(teidCb, (Size)sizeof(EgtpTeIdCb));
return RFAILED;
}
- egtpCb.dstCb.numTunn++;
+ egtpCb.dstCb[duId-1].numTunn++;
/* Encoding pre-defined header */
memset(&preDefHdr, 0, sizeof(EgtpMsgHdr));
preDefHdr.teId = teidCb->remTeId;
preDefHdr.extHdr.pdcpNmb.pres = FALSE;
preDefHdr.extHdr.udpPort.pres = FALSE;
- preDefHdr.nPdu.pres = FALSE;
-
+ preDefHdr.nPdu.pres = TRUE; //Including nPdu when sending data
+ preDefHdr.nPdu.val = 0;
+
cuEgtpEncodeHdr((uint8_t *)teidCb->preEncodedHdr.hdr, &preDefHdr, &(teidCb->preEncodedHdr.cnt));
+ egtpCb.gCntPdu[teidCb->remTeId] = 0;//Resetting the Cnt Value for this DRB which indicates its creation
/* SPutSBuf(CU_APP_MEM_REG, CU_POOL, (Data *)teidCb, (Size)sizeof(EgtpTeIdCb));*/
* RFAILED - failure
*
* ***************************************************************************/
-S16 cuEgtpTnlMod(EgtpTnlEvt tnlEvt)
+S16 cuEgtpTnlMod(uint32_t duId, EgtpTnlEvt tnlEvt)
{
#if 0
S16 ret;
DU_LOG("\nDEBUG --> CU_STUB : Tunnel modification : LocalTeid[%d] Remote Teid[%d]", tnlEvt.lclTeid, tnlEvt.remTeid);
- cmHashListFind(&(egtpCb.dstCb.teIdLst), (uint8_t *)&(tnlEvt.teId), sizeof(uint32_t), 0, (PTR *)&teidCb);
+ cmHashListFind(&(egtpCb.dstCb[duId-1].teIdLst), (uint8_t *)&(tnlEvt.teId), sizeof(uint32_t), 0, (PTR *)&teidCb);
if(teidCb == NULLP)
{
DU_LOG("\nDEBUG --> CU_STUBTunnel id not found");
* RFAILED - failure
*
* ***************************************************************************/
-S16 cuEgtpTnlDel(EgtpTnlEvt tnlEvt)
+S16 cuEgtpTnlDel(uint32_t duId, EgtpTnlEvt tnlEvt)
{
EgtpTeIdCb *teidCb = NULLP;
DU_LOG("\nDEBUG --> EGTP : Tunnel deletion : Local Teid[%d] Remote Teid[%d]", tnlEvt.lclTeid, tnlEvt.remTeid);
- cmHashListFind(&(egtpCb.dstCb.teIdLst), (uint8_t *)&(tnlEvt.lclTeid), sizeof(uint32_t), 0, (PTR *)&teidCb);
+ cmHashListFind(&(egtpCb.dstCb[duId-1].teIdLst), (uint8_t *)&(tnlEvt.lclTeid), sizeof(uint32_t), 0, (PTR *)&teidCb);
if(teidCb == NULLP)
{
DU_LOG("\nERROR --> EGTP : Tunnel id[%d] not configured", tnlEvt.lclTeid);
return RFAILED;
}
- cmHashListDelete(&(egtpCb.dstCb.teIdLst), (PTR)teidCb);
+ cmHashListDelete(&(egtpCb.dstCb[duId-1].teIdLst), (PTR)teidCb);
CU_FREE(teidCb, (Size)sizeof(EgtpTeIdCb));
- egtpCb.dstCb.numTunn--;
+ egtpCb.dstCb[duId-1].numTunn--;
return ROK;
} /* cuEgtpTnlDel */
} /* egtpEncodeHdr */
+/*******************************************************************
+ *
+ * @brief This handles the any EGTP received message
+ *
+ * @details
+ *
+ * Function : cuEgtpHdlRecvMsg
+ *
+ * Functionality:
+ * This handles the any EGTP received message
+ *
+ * @params[in] Message Buffer
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
S16 cuEgtpHdlRecvMsg(Buffer *mBuf)
{
/*Decoding of EGTP message header */
+
cuEgtpDecodeHdr(mBuf);
-
+
/* Start Pumping data from CU to DU */
//return (cuEgtpDatReq());
}
+/*******************************************************************
+ *
+ * @brief Decodes message header
+ *
+ * @details
+ *
+ * Function : cuEgtpDecodeHdr
+ *
+ * Functionality:
+ * Decodes EGTP message haeder
+ *
+ * @params[in] Message Buffer
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
S16 cuEgtpDecodeHdr(Buffer *mBuf)
{
EgtpMsg egtpMsg;
ODU_REM_PRE_MSG(&extHdrType, mBuf);
}
- DU_LOG("\nDEBUG --> EGTP : Message Buffer after decoding header ");
+ DU_LOG("\nDEBUG --> EGTP : Message Buffer after decoding header [TEID:%d]",egtpMsg.msgHdr.teId);
ODU_PRINT_MSG(mBuf, 0, 0);
+ SPutMsg(mBuf);
+
return ROK;
} /* End of cuEgtpDecodeHdr */
-S16 cuEgtpDatReq()
+/*******************************************************************
+ *
+ * @brief This function is responsible to build application message, encode EGTP
+ * header to it and send to DU over tunnel (teId)
+ *
+ * @details
+ *
+ * Function : cuEgtpDatReq
+ *
+ * Functionality:
+ * function is responsible to build application message, encode EGTP
+ * header to it and send to DU over tunnel (teId)
+ *
+ * @params[in] uint8_t teId
+ *
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint16_t cuEgtpDatReq(uint32_t duId, uint8_t teId)
{
- uint8_t cnt = 0;
+ uint8_t ret = ROK, cnt = 0;
EgtpMsg egtpMsg;
+ egtpMsg.msgHdr.teId = teId;
+
+ if(egtpCb.gCntPdu[teId] == 0xFF) //DRB not created
+ {
+ DU_LOG("\nERROR --> EGTP : DRB not created");
+ return RFAILED ;
+ }
/* Build Application message that is supposed to come from app to egtp */
- BuildAppMsg(&egtpMsg);
+ ret = BuildAppMsg(duId, &egtpMsg);
+ if(ret != ROK)
+ {
+ DU_LOG("\nERROR --> EGTP : Failed to build App Msg");
+ return RFAILED;
+ }
/* Encode EGTP header to build final EGTP message */
- BuildEgtpMsg(&egtpMsg);
-
- /* Send Message to peer */
- while(cnt < 200)
+ ret = BuildEgtpMsg(duId, &egtpMsg);
+ if(ret != ROK)
{
- DU_LOG("\nDEBUG --> EGTP : Sending message[%d]", cnt+1);
- cuEgtpSendMsg(egtpMsg.msg);
- cnt++;
+ DU_LOG("\nERROR --> EGTP : Failed to build EGTP Msg");
+ return RFAILED;
}
-
+ cuEgtpSendMsg(duId, egtpMsg.msg);
ODU_PUT_MSG_BUF(egtpMsg.msg);
-
return ROK;
}
-S16 BuildAppMsg(EgtpMsg *egtpMsg)
+/*******************************************************************
+ *
+ * @brief Builds application message to be sent to DU in DL path
+ *
+ * @details
+ *
+ * Function : BuildAppMsg
+ *
+ * Functionality:
+ * Builds application message to be sent to DU in DL path
+ *
+ * @params[in] uint32_t duId,EGTP message
+ *
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+S16 BuildAppMsg(uint32_t duId, EgtpMsg *egtpMsg)
{
- char data[30] = "This is EGTP data from CU";
- int datSize = 30;
+ char data[1215] = "In telecommunications, 5G is the fifth generation technology standard for broadband cellular"
+ " networks, which cellular phone companies began deploying worldwide in 2019, and is the planned successor to the 4G "
+ " networks which provide connectivity to most current cellphones. 5G networks are predicted to have more than 1.7"
+ " billion subscribers worldwide by 2025, according to the GSM Association.Like its predecessors, 5G networks are"
+ " cellular networks,in which the service area is divided into small geographical areas called cells.All 5G wireless"
+ " devices in a cell are connected to the Internet and telephone network by radio waves through local antenna in the"
+ " cell. The main advantage of the new networks is that they will have greater bandwidth, giving higher download"
+ " speeds, eventually up to 10 gigabits per second(Gbit/s). Due to the increased bandwidth, it is expected the"
+ " networks will not exclusively serve cellphones like existing cellular networks, but also be used as general"
+ " internet service providers for laptops and desktop computers, competing with existing ISPs such as cable"
+ " internet, and also will make possible new applications in internet of things (IoT) and machine to machine areas.";
+
+ int datSize = 1215;
Buffer *mBuf;
ipv4Hdr.length = CM_IPV4_HDRLEN + mLen;
ipv4Hdr.hdrVer = 0x45;
ipv4Hdr.proto = 1;
- ipv4Hdr.srcAddr = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.localIp.ipV4Addr);
- ipv4Hdr.destAddr = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.destIp.ipV4Addr);
+ ipv4Hdr.srcAddr = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.egtpAssoc[duId-1].localIp.ipV4Addr);
+ ipv4Hdr.destAddr = CM_INET_NTOH_UINT32(egtpCb.egtpCfg.egtpAssoc[duId-1].destIp.ipV4Addr);
/* Packing IPv4 header into buffer */
S16 ret, cnt, idx;
ret = ODU_ADD_PRE_MSG_MULT(revPkArray, (MsgLen)cnt, mBuf);
egtpMsg->msgHdr.msgType = EGTPU_MSG_GPDU;
- egtpMsg->msgHdr.nPdu.pres = FALSE;
+ egtpMsg->msgHdr.nPdu.pres = TRUE;
+
+ if(egtpCb.gCntPdu[egtpMsg->msgHdr.teId] != NUM_DL_PACKETS)
+ egtpCb.gCntPdu[egtpMsg->msgHdr.teId]++;
+ else
+ egtpCb.gCntPdu[egtpMsg->msgHdr.teId] = 1;
+
+ egtpMsg->msgHdr.nPdu.val = egtpCb.gCntPdu[egtpMsg->msgHdr.teId];
egtpMsg->msgHdr.seqNum.pres = FALSE;
egtpMsg->msgHdr.extHdr.udpPort.pres = FALSE;
egtpMsg->msgHdr.extHdr.pdcpNmb.pres = FALSE;
- egtpMsg->msgHdr.teId = 10;
egtpMsg->msg = mBuf;
return ret;
}
-
-S16 BuildEgtpMsg(EgtpMsg *egtpMsg)
+/*******************************************************************
+ *
+ * @brief Encodes EGTP header to application message to send to DU
+ *
+ * @details
+ *
+ * Function : BuildEgtpMsg
+ *
+ * Functionality:
+ * Encodes EGTP header to application message to send to DU
+ *
+ * @params[in] uint32_t duId,EGTP message
+ *
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+S16 BuildEgtpMsg(uint32_t duId, EgtpMsg *egtpMsg)
{
EgtpTeIdCb *teidCb = NULLP;
MsgLen tPduSize;
uint32_t msgLen;
EgtpMsgHdr *msgHdr;
- cmHashListFind(&(egtpCb.dstCb.teIdLst), (uint8_t *)&(egtpMsg->msgHdr.teId), sizeof(uint32_t), 0, (PTR *)&teidCb);
+ cmHashListFind(&(egtpCb.dstCb[duId-1].teIdLst), (uint8_t *)&(egtpMsg->msgHdr.teId), sizeof(uint32_t), 0, (PTR *)&teidCb);
if(teidCb == NULLP)
{
DU_LOG("\nERROR --> EGTP : Tunnel id[%d] not configured", egtpMsg->msgHdr.teId);
teidCb->preEncodedHdr.hdr[EGTP_MAX_HDR_LEN - 1] &= ~(EGTP_MASK_BIT2);
}
- ODU_ADD_PRE_MSG_MULT(&teidCb->preEncodedHdr.hdr[hdrLen], (EGTP_MAX_HDR_LEN - hdrLen), egtpMsg->msg);
-
- DU_LOG("\nDEBUG --> EGTP : Sending message buffer");
- ODU_PRINT_MSG(egtpMsg->msg, 0, 0);
+ /*Update the nPdU number*/
+ if(egtpMsg->msgHdr.nPdu.pres)
+ {
+ teidCb->preEncodedHdr.hdr[EGTP_MAX_HDR_LEN - 1] |= (EGTP_MASK_BIT1);
+ teidCb->preEncodedHdr.hdr[EGTP_MAX_HDR_LEN - 11] = egtpMsg->msgHdr.nPdu.val;
+ }
+ else
+ {
+ teidCb->preEncodedHdr.hdr[EGTP_MAX_HDR_LEN - 1] &= ~(EGTP_MASK_BIT1);
+ }
+ ODU_ADD_PRE_MSG_MULT(&teidCb->preEncodedHdr.hdr[hdrLen], (EGTP_MAX_HDR_LEN - hdrLen), egtpMsg->msg);
return ROK;
}
-S16 cuEgtpSendMsg(Buffer *mBuf)
+/*******************************************************************
+ *
+ * @brief Send the egtp message to the destination DU
+ *
+ * @details
+ *
+ * Function : cuEgtpSendMsg
+ *
+ * Functionality:
+ * Send the egtp message to the destination DU
+ *
+ * @params[in] uint32_t duId
+ * Message Buffer
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+S16 cuEgtpSendMsg(uint32_t duId, Buffer *mBuf)
{
S16 ret;
MsgLen txLen;
info.region = CU_APP_MEM_REG;
info.pool = CU_POOL;
- dstAddr.port = EGTP_DFLT_PORT;
- dstAddr.address = egtpCb.dstCb.dstIp;
+ dstAddr.port = EGTP_RECVR_PORT;
+ dstAddr.address = egtpCb.dstCb[duId-1].dstIp;
- ret = cmInetSendMsg(&(egtpCb.dstCb.sendTptSrvr.sockFd), &dstAddr, &info, mBuf, &txLen, CM_INET_NO_FLAG);
+ ret = cmInetSendMsg(&(egtpCb.dstCb[duId-1].sendTptSrvr.sockFd), &dstAddr, &info, mBuf, &txLen, CM_INET_NO_FLAG);
if(ret != ROK && ret != RWOULDBLOCK)
{
DU_LOG("\nERROR --> EGTP : Message send failure");