67     static BaseType_t prvTCPHandleFin( FreeRTOS_Socket_t * pxSocket,
74     static BaseType_t prvHandleSynReceived( FreeRTOS_Socket_t * pxSocket,
82     static BaseType_t prvHandleEstablished( FreeRTOS_Socket_t * pxSocket,
141         BaseType_t prvTCPStatusAgeCheck( FreeRTOS_Socket_t * pxSocket )  in prvTCPStatusAgeCheck()  argument
145             eIPTCPState_t eState = pxSocket->u.xTCP.eTCPState;  in prvTCPStatusAgeCheck()
183                 TickType_t xAge = xTaskGetTickCount() - pxSocket->u.xTCP.xLastActTime;  in prvTCPStatusAgeCheck()
191                                                      pxSocket->usLocalPort,  in prvTCPStatusAgeCheck()
192 …                                                 ( unsigned ) pxSocket->u.xTCP.xRemoteIP.ulIP_IPv4,  in prvTCPStatusAgeCheck()
193                                                      pxSocket->u.xTCP.usRemotePort,  in prvTCPStatusAgeCheck()
194 …                        FreeRTOS_GetTCPStateName( ( UBaseType_t ) pxSocket->u.xTCP.eTCPState ) ) );  in prvTCPStatusAgeCheck()
199                     vTCPStateChange( pxSocket, eCLOSE_WAIT );  in prvTCPStatusAgeCheck()
203                     if( pxSocket->u.xTCP.bits.bPassQueued != pdFALSE_UNSIGNED )  in prvTCPStatusAgeCheck()
232     static BaseType_t prvTCPHandleFin( FreeRTOS_Socket_t * pxSocket,  in prvTCPHandleFin()  argument
244         TCPWindow_t * pxTCPWindow = &pxSocket->u.xTCP.xTCPWindow;  in prvTCPHandleFin()
253         if( pxSocket->u.xTCP.bits.bFinSent == pdFALSE_UNSIGNED )  in prvTCPHandleFin()
257             pxSocket->u.xTCP.bits.bFinSent = pdTRUE_UNSIGNED;  in prvTCPHandleFin()
264                 pxSocket->u.xTCP.bits.bFinAcked = pdTRUE_UNSIGNED;  in prvTCPHandleFin()
268         if( pxSocket->u.xTCP.bits.bFinAcked == pdFALSE_UNSIGNED )  in prvTCPHandleFin()
274             vTCPStateChange( pxSocket, eLAST_ACK );  in prvTCPHandleFin()
281             if( pxSocket->u.xTCP.bits.bFinRecv == pdFALSE_UNSIGNED )  in prvTCPHandleFin()
289                 if( pxSocket->u.xTCP.bits.bFinLast == pdFALSE_UNSIGNED )  in prvTCPHandleFin()
303                 vTCPStateChange( pxSocket, eCLOSE_WAIT );  in prvTCPHandleFin()
311 …ucIntermediateResult = ( uint8_t ) ( uxIPHeaderSizeSocket( pxSocket ) + ipSIZE_OF_TCP_HEADER + pxT…  in prvTCPHandleFin()
345     static BaseType_t prvHandleSynReceived( FreeRTOS_Socket_t * pxSocket,  in prvHandleSynReceived()  argument
356 … pxNetworkBuffer->pucEthernetBuffer[ ipSIZE_OF_ETH_HEADER + uxIPHeaderSizeSocket( pxSocket ) ] ) );  in prvHandleSynReceived()
358         TCPWindow_t * pxTCPWindow = &pxSocket->u.xTCP.xTCPWindow;  in prvHandleSynReceived()
368         if( pxSocket->u.xTCP.eTCPState == eCONNECT_SYN )  in prvHandleSynReceived()
378 …    ( pxSocket->u.xTCP.eTCPState == ( uint8_t ) eSYN_RECEIVED ) ? "eSYN_RECEIVED" : "eCONNECT_SYN",  in prvHandleSynReceived()
383             vTCPStateChange( pxSocket, eCLOSE_WAIT );  in prvHandleSynReceived()
392 …  uxIntermediateResult = uxIPHeaderSizeSocket( pxSocket ) + ipSIZE_OF_TCP_HEADER + uxOptionsLength;  in prvHandleSynReceived()
399             pxTCPWindow->usPeerPortNumber = pxSocket->u.xTCP.usRemotePort;  in prvHandleSynReceived()
400             pxTCPWindow->usOurPortNumber = pxSocket->usLocalPort;  in prvHandleSynReceived()
402             if( pxSocket->u.xTCP.eTCPState == eCONNECT_SYN )  in prvHandleSynReceived()
410 …&( pxSocket->u.xTCP.xPacket.u.ucLastPacket[ ipSIZE_OF_ETH_HEADER + uxIPHeaderSizeSocket( pxSocket …  in prvHandleSynReceived()
418                 vTCPWindowInit( &pxSocket->u.xTCP.xTCPWindow,  in prvHandleSynReceived()
419 …ulSequenceNumber, pxSocket->u.xTCP.xTCPWindow.ulOurSequenceNumber, ( uint32_t ) pxSocket->u.xTCP.u…  in prvHandleSynReceived()
441 …( void ) FreeRTOS_inet_ntop( ( pxSocket->bits.bIsIPv6 != 0U ) ? FREERTOS_AF_INET6 : FREERTOS_AF_IN…  in prvHandleSynReceived()
442 …                                            ( void * ) pxSocket->u.xTCP.xRemoteIP.xIP_IPv6.ucBytes,  in prvHandleSynReceived()
446 …                 ( pxSocket->u.xTCP.eTCPState == ( uint8_t ) eCONNECT_SYN ) ? "active" : "passive",  in prvHandleSynReceived()
447                                              pxSocket->usLocalPort,  in prvHandleSynReceived()
449                                              pxSocket->u.xTCP.usRemotePort,  in prvHandleSynReceived()
450                                              ( unsigned ) pxSocket->u.xTCP.bits.bWinScaling ) );  in prvHandleSynReceived()
454             if( ( pxSocket->u.xTCP.eTCPState == eCONNECT_SYN ) || ( ulReceiveLength != 0U ) )  in prvHandleSynReceived()
458 …uxIntermediateResult = uxIPHeaderSizeSocket( pxSocket ) + ( size_t ) ipSIZE_OF_TCP_HEADER + uxOpti…  in prvHandleSynReceived()
465                     if( pxSocket->u.xTCP.bits.bWinScaling == pdFALSE_UNSIGNED )  in prvHandleSynReceived()
469                         pxSocket->u.xTCP.ucMyWinScaleFactor = 0;  in prvHandleSynReceived()
470                         pxSocket->u.xTCP.ucPeerWinScaleFactor = 0;  in prvHandleSynReceived()
477             vTCPStateChange( pxSocket, eESTABLISHED );  in prvHandleSynReceived()
498     static BaseType_t prvHandleEstablished( FreeRTOS_Socket_t * pxSocket,  in prvHandleEstablished()  argument
509 …xNetworkBuffer )->pucEthernetBuffer[ ipSIZE_OF_ETH_HEADER + uxIPHeaderSizeSocket( pxSocket ) ] ) );  in prvHandleEstablished()
511         TCPWindow_t * pxTCPWindow = &pxSocket->u.xTCP.xTCPWindow;  in prvHandleEstablished()
521         pxSocket->u.xTCP.ulWindowSize = ( uint32_t ) usWindow;  in prvHandleEstablished()
524                 pxSocket->u.xTCP.ulWindowSize =  in prvHandleEstablished()
525                     ( pxSocket->u.xTCP.ulWindowSize << pxSocket->u.xTCP.ucPeerWinScaleFactor );  in prvHandleEstablished()
542             if( ( pxSocket->u.xTCP.txStream != NULL ) && ( ulCount > 0U ) )  in prvHandleEstablished()
548 …  if( uxStreamBufferGet( pxSocket->u.xTCP.txStream, 0U, NULL, ( size_t ) ulCount, pdFALSE ) != 0U )  in prvHandleEstablished()
550                     pxSocket->xEventBits |= ( EventBits_t ) eSOCKET_SEND;  in prvHandleEstablished()
554 …                          if( ( pxSocket->xSelectBits & ( ( EventBits_t ) eSELECT_WRITE ) ) != 0U )  in prvHandleEstablished()
556 …               pxSocket->xEventBits |= ( ( EventBits_t ) eSELECT_WRITE ) << SOCKET_EVENT_BIT_COUNT;  in prvHandleEstablished()
565                             if( ipconfigIS_VALID_PROG_ADDRESS( pxSocket->u.xTCP.pxHandleSent ) )  in prvHandleEstablished()
567                                 pxSocket->u.xTCP.pxHandleSent( ( Socket_t ) pxSocket, ulCount );  in prvHandleEstablished()
576             if( pxSocket->u.xTCP.txStream != NULL )  in prvHandleEstablished()
578                 prvTCPAddTxData( pxSocket );  in prvHandleEstablished()
581 …         pxSocket->u.xTCP.xTCPWindow.ulOurSequenceNumber = pxTCPWindow->tx.ulCurrentSequenceNumber;  in prvHandleEstablished()
583 …if( ( pxSocket->u.xTCP.bits.bFinAccepted != pdFALSE_UNSIGNED ) || ( ( ucTCPFlags & ( uint8_t ) tcp…  in prvHandleEstablished()
589                 if( pxSocket->u.xTCP.bits.bFinSent == pdFALSE_UNSIGNED )  in prvHandleEstablished()
599                                                  pxSocket->usLocalPort,  in prvHandleEstablished()
600                                                  pxSocket->u.xTCP.usRemotePort,  in prvHandleEstablished()
626 …          ( unsigned ) ( ulSequenceNumber - pxSocket->u.xTCP.xTCPWindow.rx.ulFirstSequenceNumber ),  in prvHandleEstablished()
628 …( unsigned ) ( pxTCPWindow->tx.ulCurrentSequenceNumber - pxSocket->u.xTCP.xTCPWindow.tx.ulFirstSeq…  in prvHandleEstablished()
633                     pxSocket->u.xTCP.bits.bFinAccepted = pdTRUE_UNSIGNED;  in prvHandleEstablished()
634                     xSendLength = prvTCPHandleFin( pxSocket, *ppxNetworkBuffer );  in prvHandleEstablished()
644 …  uxIntermediateResult = uxIPHeaderSizeSocket( pxSocket ) + ipSIZE_OF_TCP_HEADER + uxOptionsLength;  in prvHandleEstablished()
649                     if( pxSocket->u.xTCP.bits.bFinSent != pdFALSE_UNSIGNED )  in prvHandleEstablished()
665                     lSendResult = prvTCPPrepareSend( pxSocket, ppxNetworkBuffer, uxOptionsLength );  in prvHandleEstablished()
706     BaseType_t prvTCPHandleState( FreeRTOS_Socket_t * pxSocket,  in prvTCPHandleState()  argument
729         TCPWindow_t * pxTCPWindow = &( pxSocket->u.xTCP.xTCPWindow );  in prvTCPHandleState()
737         if( pxSocket->u.xTCP.eTCPState >= eESTABLISHED )  in prvTCPHandleState()
744                 pxSocket->u.xTCP.bits.bWinChange = pdTRUE_UNSIGNED;  in prvTCPHandleState()
758         if( prvStoreRxData( pxSocket, pucRecvData, *ppxNetworkBuffer, ulReceiveLength ) < 0 )  in prvTCPHandleState()
766             uxOptionsLength = prvSetOptions( pxSocket, *ppxNetworkBuffer );  in prvTCPHandleState()
768 …if( ( pxSocket->u.xTCP.eTCPState == eSYN_RECEIVED ) && ( ( ucTCPFlags & ( uint8_t ) tcpTCP_FLAG_CT…  in prvTCPHandleState()
776                 vTCPStateChange( pxSocket, eSYN_FIRST );  in prvTCPHandleState()
779 …if( ( ( ucTCPFlags & tcpTCP_FLAG_FIN ) != 0U ) && ( pxSocket->u.xTCP.bits.bFinRecv == pdFALSE_UNSI…  in prvTCPHandleState()
784                 pxSocket->u.xTCP.bits.bFinRecv = pdTRUE_UNSIGNED;  in prvTCPHandleState()
787                 if( pxSocket->u.xTCP.bits.bFinSent == pdFALSE_UNSIGNED )  in prvTCPHandleState()
790                     pxSocket->u.xTCP.bits.bFinLast = pdTRUE_UNSIGNED;  in prvTCPHandleState()
794             eState = ( eIPTCPState_t ) pxSocket->u.xTCP.eTCPState;  in prvTCPHandleState()
817                     uxOptionsLength = prvSetSynAckOptions( pxSocket, pxTCPHeader );  in prvTCPHandleState()
820 …  uxIntermediateResult = uxIPHeaderSizeSocket( pxSocket ) + ipSIZE_OF_TCP_HEADER + uxOptionsLength;  in prvTCPHandleState()
827                     vTCPStateChange( pxSocket, eSYN_RECEIVED );  in prvTCPHandleState()
840 …xSendLength = prvHandleSynReceived( pxSocket, *( ppxNetworkBuffer ), ulReceiveLength, uxOptionsLen…  in prvTCPHandleState()
848 …xSendLength = prvHandleEstablished( pxSocket, ppxNetworkBuffer, ulReceiveLength, uxOptionsLength );  in prvTCPHandleState()
861                     xSendLength = prvTCPHandleFin( pxSocket, *ppxNetworkBuffer );  in prvTCPHandleState()
893             xSendLength = prvSendData( pxSocket, ppxNetworkBuffer, ulReceiveLength, xSendLength );  in prvTCPHandleState()
909     FreeRTOS_Socket_t * prvHandleListen( FreeRTOS_Socket_t * pxSocket,  in prvHandleListen()  argument
918                     pxNewSocket = prvHandleListen_IPV4( pxSocket, pxNetworkBuffer );  in prvHandleListen()
924                     pxNewSocket = prvHandleListen_IPV6( pxSocket, pxNetworkBuffer );  in prvHandleListen()
950                                  FreeRTOS_Socket_t * pxSocket )  in prvTCPSocketCopy()  argument
955         pxNewSocket->xReceiveBlockTime = pxSocket->xReceiveBlockTime;  in prvTCPSocketCopy()
956         pxNewSocket->xSendBlockTime = pxSocket->xSendBlockTime;  in prvTCPSocketCopy()
957         pxNewSocket->ucSocketOptions = pxSocket->ucSocketOptions;  in prvTCPSocketCopy()
958         pxNewSocket->u.xTCP.uxRxStreamSize = pxSocket->u.xTCP.uxRxStreamSize;  in prvTCPSocketCopy()
959         pxNewSocket->u.xTCP.uxTxStreamSize = pxSocket->u.xTCP.uxTxStreamSize;  in prvTCPSocketCopy()
960         pxNewSocket->u.xTCP.uxLittleSpace = pxSocket->u.xTCP.uxLittleSpace;  in prvTCPSocketCopy()
961         pxNewSocket->u.xTCP.uxEnoughSpace = pxSocket->u.xTCP.uxEnoughSpace;  in prvTCPSocketCopy()
962         pxNewSocket->u.xTCP.uxRxWinSize = pxSocket->u.xTCP.uxRxWinSize;  in prvTCPSocketCopy()
963         pxNewSocket->u.xTCP.uxTxWinSize = pxSocket->u.xTCP.uxTxWinSize;  in prvTCPSocketCopy()
967                 pxNewSocket->pxUserSemaphore = pxSocket->pxUserSemaphore;  in prvTCPSocketCopy()
974                 pxNewSocket->u.xTCP.pxHandleConnected = pxSocket->u.xTCP.pxHandleConnected;  in prvTCPSocketCopy()
975                 pxNewSocket->u.xTCP.pxHandleReceive = pxSocket->u.xTCP.pxHandleReceive;  in prvTCPSocketCopy()
976                 pxNewSocket->u.xTCP.pxHandleSent = pxSocket->u.xTCP.pxHandleSent;  in prvTCPSocketCopy()
984                 if( pxSocket->pxSocketSet != NULL )  in prvTCPSocketCopy()
986                     pxNewSocket->pxSocketSet = pxSocket->pxSocketSet;  in prvTCPSocketCopy()
987 …pxNewSocket->xSelectBits = pxSocket->xSelectBits | ( ( EventBits_t ) eSELECT_READ ) | ( ( EventBit…  in prvTCPSocketCopy()
994         xAddress.sin_port = FreeRTOS_htons( pxSocket->usLocalPort );  in prvTCPSocketCopy()
1005                 pxNewSocket->u.xTCP.pxPeerSocket = pxSocket;  in prvTCPSocketCopy()
1016                 if( pxSocket->u.xTCP.pxPeerSocket == NULL )  in prvTCPSocketCopy()
1018                     pxSocket->u.xTCP.pxPeerSocket = pxNewSocket;  in prvTCPSocketCopy()
1023         pxSocket->u.xTCP.usChildCount++;  in prvTCPSocketCopy()
1026                                  pxSocket->usLocalPort,  in prvTCPSocketCopy()
1027                                  pxSocket->u.xTCP.usChildCount,  in prvTCPSocketCopy()
1028                                  pxSocket->u.xTCP.usBacklog,  in prvTCPSocketCopy()
1029                                  ( pxSocket->u.xTCP.usChildCount == 1U ) ? "" : "ren" ) );  in prvTCPSocketCopy()