80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include <stdint.h>
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#include <byteswap.h>
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#include <ipxe/netdevice.h>
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#include <ipxe/iobuf.h>
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#include <ipxe/if_ether.h>
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#include <ipxe/rarp.h>
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/** @file
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*
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* Reverse Address Resolution Protocol
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*
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*/
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/**
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* Process incoming ARP packets
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*
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* @v iobuf I/O buffer
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* @v netdev Network device
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* @v ll_dest Link-layer destination address
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* @v ll_source Link-layer source address
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* @v flags Packet flags
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* @ret rc Return status code
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*
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* This is a dummy method which simply discards RARP packets.
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*/
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static int rarp_rx ( struct io_buffer *iobuf,
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struct net_device *netdev __unused,
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const void *ll_dest __unused,
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const void *ll_source __unused,
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unsigned int flags __unused ) {
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free_iob ( iobuf );
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return 0;
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}
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/**
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* Transcribe RARP address
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*
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* @v net_addr RARP address
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* @ret string "<RARP>"
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*
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* This operation is meaningless for the RARP protocol.
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*/
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static const char * rarp_ntoa ( const void *net_addr __unused ) {
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return "<RARP>";
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}
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/** RARP protocol */
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struct net_protocol rarp_protocol __net_protocol = {
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.name = "RARP",
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.net_proto = htons ( ETH_P_RARP ),
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.rx = rarp_rx,
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.ntoa = rarp_ntoa,
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};
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