ip.h

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00001 #ifndef _NETINET_IP_H_
00002 #define _NETINET_IP_H_
00003 
00004 /*
00005  * Copyright (C) 2001-2005 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. Neither the name of the copyright holders nor the names of
00017  *    contributors may be used to endorse or promote products derived
00018  *    from this software without specific prior written permission.
00019  *
00020  * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS
00021  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00022  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
00023  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE
00024  * SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00025  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
00026  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
00027  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
00028  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00029  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
00030  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00031  * SUCH DAMAGE.
00032  *
00033  * For additional information see http://www.ethernut.de/
00034  *
00035  * -
00036  * Portions Copyright (C) 2000 David J. Hudson <dave@humbug.demon.co.uk>
00037  *
00038  * This file is distributed in the hope that it will be useful, but WITHOUT
00039  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00040  * FITNESS FOR A PARTICULAR PURPOSE.
00041  *
00042  * You can redistribute this file and/or modify it under the terms of the GNU
00043  * General Public License (GPL) as published by the Free Software Foundation;
00044  * either version 2 of the License, or (at your discretion) any later version.
00045  * See the accompanying file "copying-gpl.txt" for more details.
00046  *
00047  * As a special exception to the GPL, permission is granted for additional
00048  * uses of the text contained in this file.  See the accompanying file
00049  * "copying-liquorice.txt" for details.
00050  * -
00051  * Portions Copyright (c) 1983, 1993 by
00052  *  The Regents of the University of California.  All rights reserved.
00053  *
00054  * Redistribution and use in source and binary forms, with or without
00055  * modification, are permitted provided that the following conditions
00056  * are met:
00057  * 1. Redistributions of source code must retain the above copyright
00058  *    notice, this list of conditions and the following disclaimer.
00059  * 2. Redistributions in binary form must reproduce the above copyright
00060  *    notice, this list of conditions and the following disclaimer in the
00061  *    documentation and/or other materials provided with the distribution.
00062  * 3. Neither the name of the University nor the names of its contributors
00063  *    may be used to endorse or promote products derived from this software
00064  *    without specific prior written permission.
00065  *
00066  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
00067  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00068  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00069  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
00070  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00071  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00072  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00073  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00074  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00075  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00076  * SUCH DAMAGE.
00077  */
00078 
00079 /*
00080  * $Log$
00081  * Revision 1.8  2008/10/05 16:47:04  haraldkipp
00082  * Removed attribute 'packed' from typedef.
00083  *
00084  * Revision 1.7  2008/08/20 06:56:59  haraldkipp
00085  * Implemented IP demultiplexer.
00086  *
00087  * Revision 1.6  2008/08/11 07:00:23  haraldkipp
00088  * BSD types replaced by stdint types (feature request #1282721).
00089  *
00090  * Revision 1.5  2005/08/02 17:46:49  haraldkipp
00091  * Major API documentation update.
00092  *
00093  * Revision 1.4  2005/04/05 17:38:45  haraldkipp
00094  * ARM7 memory alignment bugs fixed.
00095  *
00096  * Revision 1.3  2004/12/16 18:47:02  haraldkipp
00097  * Added Damian Slee's IP filter function.
00098  *
00099  * Revision 1.2  2004/03/16 16:48:28  haraldkipp
00100  * Added Jan Dubiec's H8/300 port.
00101  *
00102  * Revision 1.1.1.1  2003/05/09 14:41:14  haraldkipp
00103  * Initial using 3.2.1
00104  *
00105  * Revision 1.9  2003/02/04 18:00:45  harald
00106  * Version 3 released
00107  *
00108  * Revision 1.8  2002/06/26 17:29:21  harald
00109  * First pre-release with 2.4 stack
00110  *
00111  */
00112 
00113 #include <net/if_arp.h>
00114 
00126 
00127 #define IPVERSION   4           
00129 #define IP_DF       0x4000      
00130 #define IP_MF       0x2000      
00131 #define IP_OFFMASK  0x1fff      
00136 typedef struct ip IPHDR;
00137 
00141 struct __attribute__ ((packed)) ip {
00142 #ifndef __BIG_ENDIAN__
00143 #ifdef __IMAGECRAFT__
00144     unsigned ip_hl:4,           
00145      ip_v:4;                    
00146 #else
00147     uint8_t ip_hl:4,             
00148      ip_v:4;                    
00149 #endif
00150 #else                           /* #ifndef __BIG_ENDIAN__ */
00151     uint8_t ip_v:4,              
00152      ip_hl:4;                   
00153 #endif                          /* #ifndef __BIG_ENDIAN__ */
00154     uint8_t ip_tos;              
00155     short ip_len;               
00156     uint16_t ip_id;              
00157     short ip_off;               
00158     uint8_t ip_ttl;              
00159     uint8_t ip_p;                
00160     uint16_t ip_sum;             
00161     uint32_t ip_src;              
00162     uint32_t ip_dst;              
00163 };
00164 
00165 #define IPOPT_EOL       0       
00166 #define IPOPT_NOP       1       
00168 #define IPOPT_RR        7       
00169 #define IPOPT_TS        68      
00170 #define IPOPT_SECURITY  130     
00171 #define IPOPT_LSRR      131     
00172 #define IPOPT_SATID     136     
00173 #define IPOPT_SSRR      137     
00175 #define IPOPT_OPTVAL    0       
00176 #define IPOPT_OLEN      1       
00177 #define IPOPT_OFFSET    2       
00178 #define IPOPT_MINOFF    4       
00180 #define MAXTTL      255         
00181 #define IPDEFTTL    64          
00182 #define IPFRAGTTL   60          
00183 #define IPTTLDEC    1           
00186 
00187 __BEGIN_DECLS
00188 /*
00189  * API declarations.
00190  */
00191 #include <dev/netbuf.h>
00192 extern int NutIpOutput(uint8_t proto, uint32_t dest, NETBUF * nb);
00193 
00194 /*
00195  * Kernel declarations.
00196  */
00197 #include <net/if_var.h>
00198 extern void NutIpInput(NUTDEVICE * dev, NETBUF * nb);
00199 
00200 /*
00201  * Ip Filter declarations.
00202  */
00203 typedef int (*NutIpFilterFunc) (uint32_t);
00204 extern void NutIpSetInputFilter(NutIpFilterFunc callbackFunc);
00205 
00206 extern int NutRegisterIpHandler(uint8_t prot, int (*hdlr)(NUTDEVICE *, NETBUF *));
00207 extern int (*ip_demux) (NUTDEVICE *, NETBUF *);
00208 
00209 __END_DECLS
00210 /* */
00211 #endif

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