[Epic-ID: ODUHIGH-463][Task-ID: ODUHIGH-496] Create setup with 2 GNB with SCTP associ...

[o-du/l2.git] / src / cu_stub / cu_stub_sctp.c

diff --git a/src/cu_stub/cu_stub_sctp.c b/src/cu_stub/cu_stub_sctp.c
index 07b462c..e9bd0d6 100644 (file)
--- a/src/cu_stub/cu_stub_sctp.c
+++ b/src/cu_stub/cu_stub_sctp.c
@@ -107,12 +107,25 @@ uint8_t sctpCfgReq()
    fillAddrLst(&sctpCb.localAddrLst, &sctpCb.sctpCfg.localIpAddr);
    memset(&sctpCb.f1LstnSockFd, -1, sizeof(CmInetFd));
 
-   for(destIdx=0; destIdx < sctpCb.sctpCfg.numDestNode; destIdx++)
+   for(destIdx=0; destIdx < sctpCb.sctpCfg.f1SctpInfo.numDestNode; destIdx++)
    {
-      sctpCb.assocCb[assocIdx].destPort = sctpCb.sctpCfg.destCb[destIdx].destPort;
+      sctpCb.assocCb[assocIdx].intf = F1_INTERFACE;
+      sctpCb.assocCb[assocIdx].destPort = sctpCb.sctpCfg.f1SctpInfo.destCb[destIdx].destPort;
       sctpCb.assocCb[assocIdx].bReadFdSet = ROK;
       memset(&sctpCb.assocCb[assocIdx].sockFd, -1, sizeof(CmInetFd));
-      fillDestNetAddr(&sctpCb.assocCb[assocIdx].destIpNetAddr, &sctpCb.sctpCfg.destCb[destIdx].destIpAddr);
+      fillDestNetAddr(&sctpCb.assocCb[assocIdx].destIpNetAddr, &sctpCb.sctpCfg.f1SctpInfo.destCb[destIdx].destIpAddr);
+      assocIdx++;
+   }
+
+   sctpCb.localXnNodeType = sctpCb.sctpCfg.xnSctpInfo.localNodeType;
+   for(destIdx=0; destIdx < sctpCb.sctpCfg.xnSctpInfo.numDestNode; destIdx++)
+   {
+      sctpCb.assocCb[assocIdx].intf = XN_INTERFACE;
+      sctpCb.assocCb[assocIdx].destId = CU_ID + destIdx +1;
+      sctpCb.assocCb[assocIdx].destPort = sctpCb.sctpCfg.xnSctpInfo.destCb[destIdx].destPort;
+      sctpCb.assocCb[assocIdx].bReadFdSet = ROK;
+      memset(&sctpCb.assocCb[assocIdx].sockFd, -1, sizeof(CmInetFd));
+      fillDestNetAddr(&sctpCb.assocCb[assocIdx].destIpNetAddr, &sctpCb.sctpCfg.xnSctpInfo.destCb[destIdx].destIpAddr);
       assocIdx++;
    }
    sctpCb.numAssoc = assocIdx;
@@ -192,16 +205,92 @@ uint8_t sctpStartReq()
 {
    uint8_t assocIdx;
    uint8_t ret = ROK;
+   CmInetFd sockFd;
 
    socket_type = CM_INET_STREAM;
 
-   if(sctpCb.numAssoc)
+   /* Establish SCTP association at XN interface */
+   if(sctpCb.sctpCfg.xnSctpInfo.numDestNode)
+   {
+      if(sctpCb.localXnNodeType == SERVER)
+      {
+         if((ret = cmInetSocket(socket_type, &sctpCb.xnLstnSockFd, IPPROTO_SCTP) != ROK))
+         {   
+            DU_LOG("\nERROR  -->  SCTP : Socket[%d] coudnt open for listening", sctpCb.f1LstnSockFd.fd);
+         }   
+         else if((ret = cmInetSctpBindx(&sctpCb.xnLstnSockFd, &sctpCb.localAddrLst, sctpCb.sctpCfg.xnSctpInfo.port)) != ROK)
+         {   
+            DU_LOG("\nERROR  -->  SCTP: Binding failed at CU");
+         }   
+         else if(ret = cmInetListen(&sctpCb.xnLstnSockFd, 1) != ROK)
+         {   
+            DU_LOG("\nERROR  -->  SCTP : Listening on socket failed");
+            cmInetClose(&sctpCb.xnLstnSockFd);
+            return RFAILED;
+         }   
+         else
+         {   
+            for(assocIdx=0; assocIdx < sctpCb.numAssoc; assocIdx++)
+            {   
+               if(sctpCb.assocCb[assocIdx].intf == XN_INTERFACE)
+               {   
+                  if((ret = sctpAccept(&sctpCb.xnLstnSockFd, &sctpCb.assocCb[assocIdx])) != ROK)
+                  {
+                     DU_LOG("\nERROR  -->  SCTP: Unable to accept the connection at CU");
+                  }
+               }
+            }
+         }
+      }
+      else if(sctpCb.localXnNodeType == CLIENT)
+      {
+         for(assocIdx=0; assocIdx < sctpCb.numAssoc; assocIdx++)
+         {
+            if(sctpCb.assocCb[assocIdx].intf == XN_INTERFACE)
+            {
+               if((ret = cmInetSocket(socket_type, &sctpCb.assocCb[assocIdx].sockFd, IPPROTO_SCTP)) != ROK)
+               {   
+                  DU_LOG("\nERROR  -->  SCTP : Failed while opening a socket in ODU");
+               }   
+               else if((ret = cmInetSctpBindx(&sctpCb.assocCb[assocIdx].sockFd, &sctpCb.localAddrLst, sctpCb.sctpCfg.xnSctpInfo.port)) != ROK)
+               {   
+                  DU_LOG("\nERROR  -->  SCTP:  Failed during Binding in ODU");
+               }   
+               else if((ret = sctpSetSockOpts(&sctpCb.assocCb[assocIdx].sockFd)) != ROK)
+               {   
+                  DU_LOG("\nERROR  -->  SCTP : Failed to set Socket Opt in ODU");
+               }    
+               else
+               {   
+                  if(ret != ROK)
+                  {   
+                     DU_LOG("\nERROR  -->  SCTP : Failed while establishing Req at DU");
+                     ret = RFAILED;
+                  }   
+                  else 
+                  {   
+                     ret = cmInetSctpConnectx(&sctpCb.assocCb[assocIdx].sockFd, &sctpCb.assocCb[assocIdx].destIpNetAddr, \
+                              &sctpCb.assocCb[assocIdx].destAddrLst, sctpCb.assocCb[assocIdx].destPort);
+                     /* 115 error_code indicates that Operation is in progress and hence ignored if SctpConnect failed due to this */
+                     if(ret == 18)    
+                     {
+                        ret = ROK; 
+                     }
+                  }   
+               }
+            }
+         }
+      }
+   }
+
+   /* Establish SCTP association at F1 interface */
+   if(sctpCb.sctpCfg.f1SctpInfo.numDestNode)
    {
       if((ret = cmInetSocket(socket_type, &sctpCb.f1LstnSockFd, IPPROTO_SCTP) != ROK))
       {
          DU_LOG("\nERROR  -->  SCTP : Socket[%d] coudnt open for listening", sctpCb.f1LstnSockFd.fd);
       } 
-      else if((ret = cmInetSctpBindx(&sctpCb.f1LstnSockFd, &sctpCb.localAddrLst, sctpCb.sctpCfg.f1SctpPort)) != ROK)
+      else if((ret = cmInetSctpBindx(&sctpCb.f1LstnSockFd, &sctpCb.localAddrLst, sctpCb.sctpCfg.f1SctpInfo.port)) != ROK)
       {
          DU_LOG("\nERROR  -->  SCTP: Binding failed at CU");
       }
@@ -215,9 +304,12 @@ uint8_t sctpStartReq()
       {
          for(assocIdx=0; assocIdx < sctpCb.numAssoc; assocIdx++)
          {
-            if((ret = sctpAccept(&sctpCb.assocCb[assocIdx])) != ROK)
+            if(sctpCb.assocCb[assocIdx].intf == F1_INTERFACE)
             {
-               DU_LOG("\nERROR  -->  SCTP: Unable to accept the connection at CU");
+               if((ret = sctpAccept(&sctpCb.f1LstnSockFd, &sctpCb.assocCb[assocIdx])) != ROK)
+               {
+                  DU_LOG("\nERROR  -->  SCTP: Unable to accept the connection at CU");
+               }
             }
          }
       }
@@ -232,6 +324,7 @@ uint8_t sctpStartReq()
    }
    return (ret);
 }
+
 /*******************************************************************
  *
  * @brief Sets socket options as per requirement
@@ -287,7 +380,7 @@ uint8_t sctpSetSockOpts(CmInetFd *sock_Fd)
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t sctpAccept(CuSctpAssocCb *assocCb)
+uint8_t sctpAccept(CmInetFd *lstnSockFd, CuSctpAssocCb *assocCb)
 {
    uint8_t  ret;
 
@@ -295,7 +388,7 @@ uint8_t sctpAccept(CuSctpAssocCb *assocCb)
 
    while(!assocCb->connUp)
    {
-      ret = cmInetAccept(&sctpCb.f1LstnSockFd, &assocCb->peerAddr, &assocCb->sockFd);
+      ret = cmInetAccept(lstnSockFd, &assocCb->peerAddr, &assocCb->sockFd);
       if (ret == ROKDNA)
       {
          continue;
@@ -422,11 +515,11 @@ uint8_t sctpSockPoll()
    Buffer        *egtpBuf;
    MsgLen        egtpBufLen;
    CmInetMemInfo memInfo;
-   sctpSockPollParams f1PollParams;
+   sctpSockPollParams pollParams;
    uint64_t      numMsgRcvd = 0;
    CmInetAddr    fromAddr;
 
-   memset(&f1PollParams, 0, sizeof(sctpSockPollParams));
+   memset(&pollParams, 0, sizeof(sctpSockPollParams));
     
 
    /* All sockets are non-blocking */
@@ -435,14 +528,14 @@ uint8_t sctpSockPoll()
    memInfo.region = CU_APP_MEM_REG;
    memInfo.pool   = CU_POOL;
    
-   CM_INET_FD_ZERO(&f1PollParams.readFd);
+   CM_INET_FD_ZERO(&pollParams.readFd);
 
    while(1)
    {
       /* Receiving SCTP data */
       for(assocIdx = 0; assocIdx < sctpCb.numAssoc; assocIdx++)
       {
-         if((ret = processPolling(&f1PollParams, &sctpCb.assocCb[assocIdx], timeoutPtr, &memInfo)) != ROK)
+         if((ret = processPolling(&pollParams, &sctpCb.assocCb[assocIdx], timeoutPtr, &memInfo)) != ROK)
          {
             DU_LOG("\nERROR  -->  SCTP : Failed to RecvMsg for F1 at CU\n");
          }
@@ -517,9 +610,16 @@ uint8_t processPolling(sctpSockPollParams *pollParams, CuSctpAssocCb *assocCb, u
                DU_LOG("\nERROR  -->  SCTP : Failed to process sctp notify msg\n");
             }
          }
-         else if(assocCb->connUp)
+         else if(assocCb->connUp && assocCb->intf == F1_INTERFACE)
          {  
-            F1APMsgHdlr(&assocCb->duId, pollParams->mBuf);
+            F1APMsgHdlr(&assocCb->destId, pollParams->mBuf);
+            ODU_PUT_MSG_BUF(pollParams->mBuf);
+         }
+         else if(assocCb->connUp && assocCb->intf == XN_INTERFACE)
+         {
+            //TODO : Handler for messages on XN interface to be added in future commits
+            DU_LOG("\nDEBUG  -->  SCTP : Received message at XN interface");
+            ODU_PRINT_MSG(pollParams->mBuf, 0,0);
             ODU_PUT_MSG_BUF(pollParams->mBuf);
          }
          else
@@ -547,7 +647,7 @@ uint8_t processPolling(sctpSockPollParams *pollParams, CuSctpAssocCb *assocCb, u
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t sctpSend(uint32_t duId, Buffer *mBuf)
+uint8_t sctpSend(InterfaceType intf, uint32_t destId, Buffer *mBuf)
 {
    uint8_t          ret = ROK, assocIdx = 0;
    MsgLen           len = 0;          /* number of actually sent octets */
@@ -559,7 +659,7 @@ uint8_t sctpSend(uint32_t duId, Buffer *mBuf)
 
    for(assocIdx=0; assocIdx < sctpCb.numAssoc; assocIdx++)
    {
-      if(sctpCb.assocCb[assocIdx].duId == duId)
+      if((sctpCb.assocCb[assocIdx].intf == intf) && (sctpCb.assocCb[assocIdx].destId == destId))
       {
          ret = cmInetSctpSendMsg(&sctpCb.assocCb[assocIdx].sockFd, &sctpCb.assocCb[assocIdx].destIpNetAddr, \
                   sctpCb.assocCb[assocIdx].destPort, &memInfo, mBuf, &len, 0, FALSE, 0, 0/*SCT_PROTID_NONE*/, RWOULDBLOCK);
@@ -572,7 +672,7 @@ uint8_t sctpSend(uint32_t duId, Buffer *mBuf)
          return ROK;
       }
    }
-   DU_LOG("\nERROR  -->  SCTP : DU ID [%d] not found in SCTP DestCb list. Failed to send message", duId);
+   DU_LOG("\nERROR  -->  SCTP : Dest ID [%d] at Interface [%d] not found in SCTP DestCb list. Failed to send message", destId, intf);
    return RFAILED;
 } /* End of sctpSend */