Seperated out OTG, Device and Host mode demos into seperate folders for clarity. Adjusted makefiles so that the path to the LUFA library can be set in one place.

1 files changed, 85 insertions, 0 deletions

diff --git a/Demos/Device/RNDISEthernet/ARP.c b/Demos/Device/RNDISEthernet/ARP.c
new file mode 100644
index 000000000..3560403f4
--- /dev/null
+++ b/Demos/Device/RNDISEthernet/ARP.c
@@ -0,0 +1,85 @@
+/*

+             LUFA Library

+     Copyright (C) Dean Camera, 2009.

+              

+  dean [at] fourwalledcubicle [dot] com

+      www.fourwalledcubicle.com

+*/

+

+/*

+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)

+

+  Permission to use, copy, modify, and distribute this software

+  and its documentation for any purpose and without fee is hereby

+  granted, 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 disclaim 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

+ *

+ *  Address Resolution Protocol (ARP) packet handling routines. This protocol handles the

+ *  conversion of physical MAC addresses to protocol IP addresses between the host and the

+ *  device.

+ */

+ 

+#include "ARP.h"

+

+/** Processes an ARP packet inside an Ethernet frame, and writes the appropriate response

+ *  to the output Ethernet frame if the host is requesting the IP or MAC address of the

+ *  virtual server device on the network.

+ *

+ *  \param InDataStart   Pointer to the start of the incomming packet's ARP header

+ *  \param OutDataStart  Pointer to the start of the outgoing packet's ARP header

+ *

+ *  \return The number of bytes written to the out Ethernet frame if any, NO_RESPONSE otherwise

+ */

+int16_t ARP_ProcessARPPacket(void* InDataStart, void* OutDataStart)

+{

+	DecodeARPHeader(InDataStart);

+

+	ARP_Header_t* ARPHeaderIN  = (ARP_Header_t*)InDataStart;

+	ARP_Header_t* ARPHeaderOUT = (ARP_Header_t*)OutDataStart;

+

+	/* Ensure that the ARP request is a IPv4 request packet */

+	if ((SwapEndian_16(ARPHeaderIN->ProtocolType) == ETHERTYPE_IPV4) &&

+	    (SwapEndian_16(ARPHeaderIN->Operation) == ARP_OPERATION_REQUEST))

+	{

+		/* If the ARP packet is requesting the MAC or IP of the virtual webserver, return the response */

+		if (IP_COMPARE(&ARPHeaderIN->TPA, &ServerIPAddress) || 

+		    MAC_COMPARE(&ARPHeaderIN->THA, &ServerMACAddress))

+		{

+			/* Fill out the ARP response header */

+			ARPHeaderOUT->HardwareType = ARPHeaderIN->HardwareType;

+			ARPHeaderOUT->ProtocolType = ARPHeaderIN->ProtocolType;

+			ARPHeaderOUT->HLEN         = ARPHeaderIN->HLEN;

+			ARPHeaderOUT->PLEN         = ARPHeaderIN->PLEN;

+			ARPHeaderOUT->Operation    = SwapEndian_16(ARP_OPERATION_REPLY);

+

+			/* Copy over the sender MAC/IP to the target fields for the response */

+			ARPHeaderOUT->THA = ARPHeaderIN->SHA;

+			ARPHeaderOUT->TPA = ARPHeaderIN->SPA;

+

+			/* Copy over the new sender MAC/IP - MAC and IP addresses of the virtual webserver */

+			ARPHeaderOUT->SHA = ServerMACAddress;

+			ARPHeaderOUT->SPA = ServerIPAddress;

+

+			/* Return the size of the response so far */

+			return sizeof(ARP_Header_t);

+		}

+	}

+	

+	return NO_RESPONSE;

+}