Remove old TCP/IP stack code from the RNDIS examples, add explicit buffer length...

[pub/lufa.git] / Demos / Device / LowLevel / RNDISEthernet / Lib / IP.c

diff --git a/Demos/Device/LowLevel/RNDISEthernet/Lib/IP.c b/Demos/Device/LowLevel/RNDISEthernet/Lib/IP.c
deleted file mode 100644 (file)
index f5f596b..0000000
--- a/Demos/Device/LowLevel/RNDISEthernet/Lib/IP.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
-             LUFA Library
-     Copyright (C) Dean Camera, 2021.
-
-  dean [at] fourwalledcubicle [dot] com
-           www.lufa-lib.org
-*/
-
-/*
-  Copyright 2021  Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
-  Permission to use, copy, modify, distribute, and sell this
-  software and its documentation for any purpose is hereby granted
-  without fee, provided that the above copyright notice appear in
-  all copies and that both that the copyright notice and this
-  permission notice and warranty disclaimer appear in supporting
-  documentation, and that the name of the author not be used in
-  advertising or publicity pertaining to distribution of the
-  software without specific, written prior permission.
-
-  The author disclaims all warranties with regard to this
-  software, including all implied warranties of merchantability
-  and fitness.  In no event shall the author be liable for any
-  special, indirect or consequential damages or any damages
-  whatsoever resulting from loss of use, data or profits, whether
-  in an action of contract, negligence or other tortious action,
-  arising out of or in connection with the use or performance of
-  this software.
-*/
-
-/** \file
- *
- *  Internet Protocol (IP) packet handling routines. This protocol handles IP packets from the
- *  host which typically encapsulate other protocols such as ICMP, UDP and TCP.
- */
-
-#include "IP.h"
-
-/** Processes an IP packet inside an Ethernet frame, and writes the appropriate response
- *  to the output Ethernet frame if one is created by a sub-protocol handler.
- *
- *  \param[in] InDataStart    Pointer to the start of the incoming packet's IP header
- *  \param[out] OutDataStart  Pointer to the start of the outgoing packet's IP header
- *
- *  \return The number of bytes written to the out Ethernet frame if any, NO_RESPONSE if no
- *           response was generated, NO_PROCESS if the packet processing was deferred until the
- *           next Ethernet packet handler iteration
- */
-int16_t IP_ProcessIPPacket(void* InDataStart,
-                           void* OutDataStart)
-{
-       DecodeIPHeader(InDataStart);
-
-       IP_Header_t* IPHeaderIN  = (IP_Header_t*)InDataStart;
-       IP_Header_t* IPHeaderOUT = (IP_Header_t*)OutDataStart;
-
-       /* Header length is specified in number of longs in the packet header, convert to bytes */
-       uint16_t HeaderLengthBytes = (IPHeaderIN->HeaderLength * sizeof(uint32_t));
-
-       int16_t  RetSize = NO_RESPONSE;
-
-       /* Check to ensure the IP packet is addressed to the virtual webserver's IP or the broadcast IP address */
-       if (!(IP_COMPARE(&IPHeaderIN->DestinationAddress, &ServerIPAddress)) &&
-           !(IP_COMPARE(&IPHeaderIN->DestinationAddress, &BroadcastIPAddress)))
-       {
-               return NO_RESPONSE;
-       }
-
-       /* Pass off the IP payload to the appropriate protocol processing routine */
-       switch (IPHeaderIN->Protocol)
-       {
-               case PROTOCOL_ICMP:
-                       RetSize = ICMP_ProcessICMPPacket(&((uint8_t*)InDataStart)[HeaderLengthBytes],
-                                                        &((uint8_t*)OutDataStart)[sizeof(IP_Header_t)]);
-                       break;
-               case PROTOCOL_TCP:
-                       RetSize = TCP_ProcessTCPPacket(InDataStart,
-                                                      &((uint8_t*)InDataStart)[HeaderLengthBytes],
-                                                      &((uint8_t*)OutDataStart)[sizeof(IP_Header_t)]);
-                       break;
-               case PROTOCOL_UDP:
-                       RetSize = UDP_ProcessUDPPacket(InDataStart,
-                                                      &((uint8_t*)InDataStart)[HeaderLengthBytes],
-                                                      &((uint8_t*)OutDataStart)[sizeof(IP_Header_t)]);
-                       break;
-       }
-
-       /* Check to see if the protocol processing routine has filled out a response */
-       if (RetSize > 0)
-       {
-               /* Fill out the response IP packet header */
-               IPHeaderOUT->TotalLength        = SwapEndian_16(sizeof(IP_Header_t) + RetSize);
-               IPHeaderOUT->TypeOfService      = 0;
-               IPHeaderOUT->HeaderLength       = (sizeof(IP_Header_t) / sizeof(uint32_t));
-               IPHeaderOUT->Version            = 4;
-               IPHeaderOUT->Flags              = 0;
-               IPHeaderOUT->FragmentOffset     = 0;
-               IPHeaderOUT->Identification     = 0;
-               IPHeaderOUT->HeaderChecksum     = 0;
-               IPHeaderOUT->Protocol           = IPHeaderIN->Protocol;
-               IPHeaderOUT->TTL                = DEFAULT_TTL;
-               IPHeaderOUT->SourceAddress      = IPHeaderIN->DestinationAddress;
-               IPHeaderOUT->DestinationAddress = IPHeaderIN->SourceAddress;
-
-               IPHeaderOUT->HeaderChecksum     = Ethernet_Checksum16(IPHeaderOUT, sizeof(IP_Header_t));
-
-               /* Return the size of the response so far */
-               return (sizeof(IP_Header_t) + RetSize);
-       }
-
-       return RetSize;
-}
-