source: bootcd/isolinux/syslinux-6.03/gpxe/src/net/rarp.c @ 26ffad7

Last change on this file since 26ffad7 was e16e8f2, checked in by Edwin Eefting <edwin@datux.nl>, 3 years ago

bootstuff

  • Property mode set to 100644
File size: 1.8 KB
Line 
1/*
2 * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19FILE_LICENCE ( GPL2_OR_LATER );
20
21#include <stdint.h>
22#include <byteswap.h>
23#include <gpxe/netdevice.h>
24#include <gpxe/iobuf.h>
25#include <gpxe/if_ether.h>
26#include <gpxe/rarp.h>
27
28/** @file
29 *
30 * Reverse Address Resolution Protocol
31 *
32 */
33
34/**
35 * Process incoming ARP packets
36 *
37 * @v iobuf             I/O buffer
38 * @v netdev            Network device
39 * @v ll_source         Link-layer source address
40 * @ret rc              Return status code
41 *
42 * This is a dummy method which simply discards RARP packets.
43 */
44static int rarp_rx ( struct io_buffer *iobuf,
45                     struct net_device *netdev __unused,
46                     const void *ll_source __unused ) {
47        free_iob ( iobuf );
48        return 0;
49}
50
51
52/**
53 * Transcribe RARP address
54 *
55 * @v net_addr  RARP address
56 * @ret string  "<RARP>"
57 *
58 * This operation is meaningless for the RARP protocol.
59 */
60static const char * rarp_ntoa ( const void *net_addr __unused ) {
61        return "<RARP>";
62}
63
64/** RARP protocol */
65struct net_protocol rarp_protocol __net_protocol = {
66        .name = "RARP",
67        .net_proto = htons ( ETH_P_RARP ),
68        .rx = rarp_rx,
69        .ntoa = rarp_ntoa,
70};
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