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Annotation of qemu/roms/ipxe/src/net/rarp.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (C) 2007 Michael Brown <[email protected]>.
                      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: 
                     19: FILE_LICENCE ( GPL2_OR_LATER );
                     20: 
                     21: #include <stdint.h>
                     22: #include <byteswap.h>
                     23: #include <ipxe/netdevice.h>
                     24: #include <ipxe/iobuf.h>
                     25: #include <ipxe/if_ether.h>
                     26: #include <ipxe/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_dest          Link-layer destination address
                     40:  * @v ll_source                Link-layer source address
                     41:  * @ret rc             Return status code
                     42:  *
                     43:  * This is a dummy method which simply discards RARP packets.
                     44:  */
                     45: static int rarp_rx ( struct io_buffer *iobuf,
                     46:                     struct net_device *netdev __unused,
                     47:                     const void *ll_dest __unused,
                     48:                     const void *ll_source __unused ) {
                     49:        free_iob ( iobuf );
                     50:        return 0;
                     51: }
                     52: 
                     53: 
                     54: /**
                     55:  * Transcribe RARP address
                     56:  *
                     57:  * @v net_addr RARP address
                     58:  * @ret string "<RARP>"
                     59:  *
                     60:  * This operation is meaningless for the RARP protocol.
                     61:  */
                     62: static const char * rarp_ntoa ( const void *net_addr __unused ) {
                     63:        return "<RARP>";
                     64: }
                     65: 
                     66: /** RARP protocol */
                     67: struct net_protocol rarp_protocol __net_protocol = {
                     68:        .name = "RARP",
                     69:        .net_proto = htons ( ETH_P_RARP ),
                     70:        .rx = rarp_rx,
                     71:        .ntoa = rarp_ntoa,
                     72: };

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