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C:/proj/src/ethernut/nut/eboot/ip.h

00001 #ifndef _IP_H
00002 #define _IP_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) 1993 by Digital Equipment Corporation.
00039  *
00040  * Permission to use, copy, modify, and distribute this software for any
00041  * purpose with or without fee is hereby granted, provided that the above
00042  * copyright notice and this permission notice appear in all copies, and that
00043  * the name of Digital Equipment Corporation not be used in advertising or
00044  * publicity pertaining to distribution of the document or software without
00045  * specific, written prior permission.
00046  * 
00047  * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
00048  * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
00049  * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
00050  * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
00051  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
00052  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
00053  * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
00054  * SOFTWARE.
00055  */
00056 
00057 /*
00058  * $Log: ip.h,v $
00059  * Revision 1.1  2002/08/01 17:34:30  harald
00060  * First check in
00061  *
00062  */
00063 
00064 #include "types.h"
00065 
00066 /*!
00067  * \addtogroup xgStack
00068  */
00069 /*@{*/
00070 
00071 #define INADDR_BROADCAST    (u_long)0xffffffff
00072 
00073 /*
00074  * Protocols
00075  */
00076 #define IPPROTO_IP      0   /*!< \brief Dummy for IP. */
00077 #define IPPROTO_ICMP    1   /*!< \brief Control message protocol. */
00078 #define IPPROTO_TCP     6   /*!< \brief Transmission control protocol. */
00079 #define IPPROTO_UDP     17  /*!< \brief User datagram protocol. */
00080 
00081 #define IPVERSION   4   /*!< \brief IP protocol version. */
00082 
00083 #define IP_DF       0x4000  /*!< \brief Don't fragment flag. */
00084 #define IP_MF       0x2000  /*!< \brief More fragments flag. */
00085 #define IP_OFFMASK  0x1fff  /*!< \brief Mask for fragmenting bits. */
00086 
00087 typedef struct ip {
00088     u_char  ip_hl:4,        /*!< \brief Header length. */
00089             ip_v:4;         /*!< \brief Version. */
00090     u_char  ip_tos;         /*!< \brief Type of service. */
00091     short   ip_len;         /*!< \brief Total length. */
00092     u_short ip_id;          /*!< \brief Identification. */
00093     short   ip_off;         /*!< \brief Fragment offset field. */
00094     u_char  ip_ttl;         /*!< \brief Time to live. */
00095     u_char  ip_p;           /*!< \brief Protocol. */
00096     u_short ip_sum;         /*!< \brief Checksum. */
00097     u_long  ip_src;         /*!< \brief Source IP address. */
00098     u_long  ip_dst;         /*!< \brief Destination IP address. */
00099 } IPHDR;
00100 
00101 /*@}*/
00102 
00103 extern u_short IpChkSum(u_short partial_csum, void *buf, u_short count);
00104 extern int IpInput(u_char proto, u_short tms);
00105 extern int IpOutput(u_long dst, u_char proto, u_short len);
00106 
00107 #endif

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