2 * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
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.
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.
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., 51 Franklin Street, Fifth Floor, Boston, MA
19 * You can also choose to distribute this program under the terms of
20 * the Unmodified Binary Distribution Licence (as given in the file
21 * COPYING.UBDL), provided that you have satisfied its requirements.
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
28 #include <ipxe/netdevice.h>
29 #include <ipxe/iobuf.h>
30 #include <ipxe/if_ether.h>
31 #include <ipxe/rarp.h>
35 * Reverse Address Resolution Protocol
40 * Process incoming ARP packets
43 * @v netdev Network device
44 * @v ll_dest Link-layer destination address
45 * @v ll_source Link-layer source address
46 * @v flags Packet flags
47 * @ret rc Return status code
49 * This is a dummy method which simply discards RARP packets.
51 static int rarp_rx ( struct io_buffer *iobuf,
52 struct net_device *netdev __unused,
53 const void *ll_dest __unused,
54 const void *ll_source __unused,
55 unsigned int flags __unused ) {
62 * Transcribe RARP address
64 * @v net_addr RARP address
65 * @ret string "<RARP>"
67 * This operation is meaningless for the RARP protocol.
69 static const char * rarp_ntoa ( const void *net_addr __unused ) {
74 struct net_protocol rarp_protocol __net_protocol = {
76 .net_proto = htons ( ETH_P_RARP ),