00001 #ifndef _ARP_H
00002 #define _ARP_H
00003
00004 /*
00005 * Copyright (C) 2001-2002 by egnite Software GmbH. All rights reserved.
00006 *
00007 * Redistribution and use in source and binary forms, with or without
00008 * modification, are permitted provided that the following conditions
00009 * are met:
00010 *
00011 * 1. Redistributions of source code must retain the above copyright
00012 * notice, this list of conditions and the following disclaimer.
00013 * 2. Redistributions in binary form must reproduce the above copyright
00014 * notice, this list of conditions and the following disclaimer in the
00015 * documentation and/or other materials provided with the distribution.
00016 * 3. All advertising materials mentioning features or use of this
00017 * software must display the following acknowledgement:
00018 *
00019 * This product includes software developed by egnite Software GmbH
00020 * and its contributors.
00021 *
00022 * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS
00023 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00024 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
00025 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE
00026 * SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00027 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
00028 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
00029 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
00030 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00031 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
00032 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00033 * SUCH DAMAGE.
00034 *
00035 * For additional information see http://www.ethernut.de/
00036 *
00037 * -
00038 * Portions Copyright (c) 1983, 1993 by
00039 * The Regents of the University of California. All rights reserved.
00040 *
00041 * Redistribution and use in source and binary forms, with or without
00042 * modification, are permitted provided that the following conditions
00043 * are met:
00044 * 1. Redistributions of source code must retain the above copyright
00045 * notice, this list of conditions and the following disclaimer.
00046 * 2. Redistributions in binary form must reproduce the above copyright
00047 * notice, this list of conditions and the following disclaimer in the
00048 * documentation and/or other materials provided with the distribution.
00049 * 3. All advertising materials mentioning features or use of this software
00050 * must display the following acknowledgement:
00051 * This product includes software developed by the University of
00052 * California, Berkeley and its contributors.
00053 * 4. Neither the name of the University nor the names of its contributors
00054 * may be used to endorse or promote products derived from this software
00055 * without specific prior written permission.
00056 *
00057 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
00058 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00059 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00060 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
00061 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00062 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00063 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00064 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00065 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00066 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00067 * SUCH DAMAGE.
00068 * -
00069 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
00070 *
00071 * Permission to use, copy, modify, and distribute this software for any
00072 * purpose with or without fee is hereby granted, provided that the above
00073 * copyright notice and this permission notice appear in all copies, and that
00074 * the name of Digital Equipment Corporation not be used in advertising or
00075 * publicity pertaining to distribution of the document or software without
00076 * specific, written prior permission.
00077 *
00078 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
00079 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
00080 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
00081 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
00082 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
00083 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
00084 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
00085 * SOFTWARE.
00086 */
00087
00088 /*
00089 * $Log: arp.h,v $
00090 * Revision 1.1 2002/08/01 17:34:29 harald
00091 * First check in
00092 *
00093 */
00094
00095 #include "types.h"
00096
00097 #include "ether.h"
00098
00099 /*!
00100 * \addtogroup xgStack
00101 */
00102 /*@{*/
00103
00104 #define ARPHRD_ETHER 1 /*!< \brief ethernet hardware format */
00105
00106 #define ARPOP_REQUEST 1 /*!< \brief request to resolve address */
00107 #define ARPOP_REPLY 2 /*!< \brief response to previous request */
00108
00109 /*!
00110 * \typedef ETHERARP
00111 * \brief Ethernet ARP protocol type.
00112 */
00113 typedef struct ether_arp {
00114 u_short arp_hrd; /*!< \brief Format of hardware address.
00115 * Nut/Net supports ARPHRD_ETHER only.
00116 */
00117 u_short arp_pro; /*!< \brief Format of protocol address.
00118 * Only ETHERTYPE_IP is supported by Nut/Net.
00119 */
00120 u_char arp_hln; /*!< \brief Length of hardware address. */
00121 u_char arp_pln; /*!< \brief Length of protocol address. */
00122 u_short arp_op; /*!< \brief ARP operation.
00123 * May be either ARPOP_REQUEST or ARPOP_REPLY.
00124 */
00125 u_char arp_sha[6]; /*!< \brief Source hardware address. */
00126 u_long arp_spa; /*!< \brief Source protocol address. */
00127 u_char arp_tha[6]; /*!< \brief Target hardware address. */
00128 u_long arp_tpa; /*!< \brief Target protocol address. */
00129 } ETHERARP;
00130
00131 typedef struct {
00132 ETHERHDR eth_hdr;
00133 ETHERARP eth_arp;
00134 } ARPFRAME;
00135
00136 extern ARPFRAME arpframe;
00137
00138 typedef struct {
00139 u_long ae_ip; /*!< \brief IP address. */
00140 u_char ae_ha[6]; /*!< \brief Hardware address. */
00141 } ARPENTRY;
00142
00143 /*@}*/
00144
00145 extern int ArpRequest(u_long ip, u_char *mac);
00146 extern void ArpRespond(void);
00147
00148 #endif
00149