00001 #ifndef _NET_NETBUF_H_ 00002 #define _NET_NETBUF_H_ 00003 00004 /* 00005 * Copyright (C) 2001-2003 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: netbuf.h,v $ 00081 * Revision 1.2 2008/04/18 13:31:59 haraldkipp 00082 * Changed size parameter from u_short to int, which is easier to handle 00083 * for 32-bit targets. You need to recompile your ARM code. No impact on 00084 * AVR expected 00085 * I changed u_int to int at some places to avoid some warnings during 00086 * compilation of Nut/Net. 00087 * libs. 00088 * 00089 * Revision 1.1.1.1 2003/05/09 14:41:07 haraldkipp 00090 * Initial using 3.2.1 00091 * 00092 * Revision 1.7 2003/05/06 18:43:03 harald 00093 * Cleanup 00094 * 00095 * Revision 1.6 2003/02/04 18:00:37 harald 00096 * Version 3 released 00097 * 00098 * Revision 1.5 2002/06/26 17:29:15 harald 00099 * First pre-release with 2.4 stack 00100 * 00101 */ 00102 00103 #include <sys/types.h> 00104 00114 00115 00116 /* lower bits may be used as ref-count, if ever needed */ 00117 #define NBAF_DATALINK 0x10 00118 #define NBAF_NETWORK 0x20 00119 #define NBAF_TRANSPORT 0x40 00120 #define NBAF_APPLICATION 0x80 00121 #define NBAF_ALL 0xf0 00126 typedef struct _NETBUF NETBUF; 00127 00131 typedef struct _NBDATA NBDATA; 00132 00137 struct _NBDATA { 00138 void *vp; 00139 int sz; 00140 }; 00141 00146 struct _NETBUF { 00147 NETBUF *nb_next; 00148 u_char nb_flags; 00149 NBDATA nb_dl; 00150 NBDATA nb_nw; 00151 NBDATA nb_tp; 00152 NBDATA nb_ap; 00153 }; 00154 00157 __BEGIN_DECLS 00158 00159 extern NETBUF *NutNetBufAlloc(NETBUF *nb, u_char type, int size); 00160 extern NETBUF *NutNetBufClone(NETBUF *nb); 00161 extern int NutNetBufFree(NETBUF *nb); 00162 00163 __END_DECLS 00164 00165 #endif