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