From f6d56675f9f981c5464f0ca7a1fbb0162154e8c5 Mon Sep 17 00:00:00 2001 From: tmk Date: Wed, 13 May 2015 11:13:10 +0900 Subject: Squashed 'tmk_core/' changes from caca2c0..dc0e46e dc0e46e Rename LUFA to LUFA-git 3bfa7fa Remove LUFA-120730 215b764 Merge commit 'afa0f22a9299686fd88f58ce09c5b521ac917e8f' as 'protocol/lufa/LUFA' afa0f22 Squashed 'protocol/lufa/LUFA/' content from commit def7fca c0c42fa Remove submodule of LUFA 30f897d Merge commit '87ced33feb74e79c3281dda36eb6d6d153399b41' as 'protocol/usb_hid/USB_Host_Shield_2.0' 87ced33 Squashed 'protocol/usb_hid/USB_Host_Shield_2.0/' content from commit aab4a69 14f6d49 Remove submodule of USB_Host_Shield_2.0 git-subtree-dir: tmk_core git-subtree-split: dc0e46eaa4367d4e218f8816e3c117895820f07c --- protocol/lufa/LUFA-git | 1 - .../Device/ClassDriver/RNDISEthernet/Lib/ARP.c | 87 ++++++++++++++++++++++ 2 files changed, 87 insertions(+), 1 deletion(-) delete mode 160000 protocol/lufa/LUFA-git create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.c (limited to 'protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.c') diff --git a/protocol/lufa/LUFA-git b/protocol/lufa/LUFA-git deleted file mode 160000 index b6c18b2a7c..0000000000 --- a/protocol/lufa/LUFA-git +++ /dev/null @@ -1 +0,0 @@ -Subproject commit b6c18b2a7c544653efbe12a1d4e8ba65e7d83c35 diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.c new file mode 100644 index 0000000000..6aaf0edd46 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.c @@ -0,0 +1,87 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * 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[in] InDataStart Pointer to the start of the incoming packet's ARP header + * \param[out] 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; +} + -- cgit v1.2.3