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<h1>mode_hdr.h</h1><a href="mode__hdr_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> ---------------------------------------------------------------------------</span>
<a name="l00003"></a>00003 <span class="comment"> Copyright (c) 1998-2006, Brian Gladman, Worcester, UK. All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> LICENSE TERMS</span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment"> The free distribution and use of this software in both source and binary</span>
<a name="l00008"></a>00008 <span class="comment"> form is allowed (with or without changes) provided that:</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment"> 1. distributions of this source code include the above copyright</span>
<a name="l00011"></a>00011 <span class="comment"> notice, this list of conditions and the following disclaimer;</span>
<a name="l00012"></a>00012 <span class="comment"></span>
<a name="l00013"></a>00013 <span class="comment"> 2. distributions in binary form include the above copyright</span>
<a name="l00014"></a>00014 <span class="comment"> notice, this list of conditions and the following disclaimer</span>
<a name="l00015"></a>00015 <span class="comment"> in the documentation and/or other associated materials;</span>
<a name="l00016"></a>00016 <span class="comment"></span>
<a name="l00017"></a>00017 <span class="comment"> 3. the copyright holder's name is not used to endorse products</span>
<a name="l00018"></a>00018 <span class="comment"> built using this software without specific written permission.</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment"> ALTERNATIVELY, provided that this notice is retained in full, this product</span>
<a name="l00021"></a>00021 <span class="comment"> may be distributed under the terms of the GNU General Public License (GPL),</span>
<a name="l00022"></a>00022 <span class="comment"> in which case the provisions of the GPL apply INSTEAD OF those given above.</span>
<a name="l00023"></a>00023 <span class="comment"></span>
<a name="l00024"></a>00024 <span class="comment"> DISCLAIMER</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment"> This software is provided 'as is' with no explicit or implied warranties</span>
<a name="l00027"></a>00027 <span class="comment"> in respect of its properties, including, but not limited to, correctness</span>
<a name="l00028"></a>00028 <span class="comment"> and/or fitness for purpose.</span>
<a name="l00029"></a>00029 <span class="comment"> ---------------------------------------------------------------------------</span>
<a name="l00030"></a>00030 <span class="comment"> Issue Date: 13/10/2006</span>
<a name="l00031"></a>00031 <span class="comment"></span>
<a name="l00032"></a>00032 <span class="comment"> This header file is an INTERNAL file which supports mode implementation</span>
<a name="l00033"></a>00033 <span class="comment">*/</span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="comment">/* This file changed 5 June 2007 to reflect name change </span>
<a name="l00036"></a>00036 <span class="comment"> of included file from "aes.h" to "gcm_aes.h"</span>
<a name="l00037"></a>00037 <span class="comment"> Changed by Peter Lovell, SPARTA Inc., for DTN project.</span>
<a name="l00038"></a>00038 <span class="comment">*/</span>
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="preprocessor">#ifndef _MODE_HDR_H</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#define _MODE_HDR_H</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span>
<a name="l00043"></a>00043 <span class="comment">/* This define sets the units in which buffers are processed. This code</span>
<a name="l00044"></a>00044 <span class="comment"> can provide significant speed gains if buffers can be processed in</span>
<a name="l00045"></a>00045 <span class="comment"> 32 or 64 bit chunks rather than in bytes. This define sets the units</span>
<a name="l00046"></a>00046 <span class="comment"> in which buffers will be accessed if possible</span>
<a name="l00047"></a>00047 <span class="comment">*/</span>
<a name="l00048"></a>00048 <span class="preprocessor">#if !defined( BFR_UNIT )</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="preprocessor"># if 1</span>
<a name="l00050"></a><a class="code" href="mode__hdr_8h.html#d63e1f447f6a9816ca34e2a77c1adeea">00050</a> <span class="preprocessor"></span><span class="preprocessor"># define BFR_UNIT 64</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor"># elif 0</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="preprocessor"># define BFR_UNIT 32</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="preprocessor"># else</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor"># define BFR_UNIT 8</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span><span class="preprocessor"># endif</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span>
<a name="l00058"></a>00058 <span class="comment">/* Use of inlines is preferred but code blocks can also be expanded inline</span>
<a name="l00059"></a>00059 <span class="comment"> using 'defines'. But the latter approach will typically generate a LOT</span>
<a name="l00060"></a>00060 <span class="comment"> of code and is not recommended. </span>
<a name="l00061"></a>00061 <span class="comment">*/</span>
<a name="l00062"></a>00062 <span class="preprocessor">#if 1 && !defined( USE_INLINING )</span>
<a name="l00063"></a><a class="code" href="mode__hdr_8h.html#3ecececa39cb540cd3f5909d6ddf7852">00063</a> <span class="preprocessor"></span><span class="preprocessor"># define USE_INLINING</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span>
<a name="l00066"></a>00066 <span class="preprocessor">#include <string.h></span>
<a name="l00067"></a>00067 <span class="preprocessor">#include <limits.h></span>
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="preprocessor">#if defined( _MSC_VER )</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span><span class="preprocessor"># if _MSC_VER >= 1400</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span><span class="preprocessor"># include <stdlib.h></span>
<a name="l00072"></a>00072 <span class="preprocessor"># include <intrin.h></span>
<a name="l00073"></a>00073 <span class="preprocessor"># pragma intrinsic(memset)</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span><span class="preprocessor"># pragma intrinsic(memcpy)</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span><span class="preprocessor"># define rotl32 _rotl</span>
<a name="l00076"></a>00076 <span class="preprocessor"></span><span class="preprocessor"># define rotr32 _rotr</span>
<a name="l00077"></a>00077 <span class="preprocessor"></span><span class="preprocessor"># define rotl64 _rotl64</span>
<a name="l00078"></a>00078 <span class="preprocessor"></span><span class="preprocessor"># define rotr64 _rotl64</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span><span class="preprocessor"># define bswap_32(x) _byteswap_ulong(x)</span>
<a name="l00080"></a>00080 <span class="preprocessor"></span><span class="preprocessor"># define bswap_64(x) _byteswap_uint64(x)</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span><span class="preprocessor"># else</span>
<a name="l00082"></a>00082 <span class="preprocessor"></span><span class="preprocessor"># define rotl32 _lrotl</span>
<a name="l00083"></a>00083 <span class="preprocessor"></span><span class="preprocessor"># define rotr32 _lrotr</span>
<a name="l00084"></a>00084 <span class="preprocessor"></span><span class="preprocessor"># endif</span>
<a name="l00085"></a>00085 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00086"></a>00086 <span class="preprocessor"></span>
<a name="l00087"></a>00087 <span class="preprocessor">#if BFR_UNIT == 64</span>
<a name="l00088"></a><a class="code" href="mode__hdr_8h.html#2013384bf57d3fa922e8802227dc9a6d">00088</a> <span class="preprocessor"></span><span class="preprocessor"># define NEED_UINT_64T</span>
<a name="l00089"></a>00089 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span>
<a name="l00091"></a>00091 <span class="preprocessor">#include "<a class="code" href="brg__endian_8h.html">brg_endian.h</a>"</span>
<a name="l00092"></a>00092 <span class="preprocessor">#include "<a class="code" href="brg__types_8h.html">brg_types.h</a>"</span>
<a name="l00093"></a>00093 <span class="preprocessor">#include "<a class="code" href="gcm__aes_8h.html">gcm_aes.h</a>"</span>
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="preprocessor">#if defined( USE_INLINING )</span>
<a name="l00096"></a>00096 <span class="preprocessor"></span><span class="preprocessor"># if defined( _MSC_VER )</span>
<a name="l00097"></a>00097 <span class="preprocessor"></span><span class="preprocessor"># define mh_inline __inline</span>
<a name="l00098"></a>00098 <span class="preprocessor"></span><span class="preprocessor"># elif defined( __GNUC__ ) || defined( __GNU_LIBRARY__ )</span>
<a name="l00099"></a>00099 <span class="preprocessor"></span><span class="preprocessor"># define mh_inline static inline</span>
<a name="l00100"></a>00100 <span class="preprocessor"></span><span class="preprocessor"># else</span>
<a name="l00101"></a><a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">00101</a> <span class="preprocessor"></span><span class="preprocessor"># define mh_inline static</span>
<a name="l00102"></a>00102 <span class="preprocessor"></span><span class="preprocessor"># endif</span>
<a name="l00103"></a>00103 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00104"></a>00104 <span class="preprocessor"></span>
<a name="l00105"></a>00105 <span class="preprocessor">#if defined(__cplusplus)</span>
<a name="l00106"></a>00106 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {
<a name="l00107"></a>00107 <span class="preprocessor">#endif</span>
<a name="l00108"></a>00108 <span class="preprocessor"></span>
<a name="l00109"></a><a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">00109</a> <span class="preprocessor">#define ui8_ptr(x) ptr_cast(x, 8)</span>
<a name="l00110"></a><a class="code" href="mode__hdr_8h.html#bfd32a2cc69c6fa68764b957c8112796">00110</a> <span class="preprocessor"></span><span class="preprocessor">#define ui16_ptr(x) ptr_cast(x, 16)</span>
<a name="l00111"></a><a class="code" href="mode__hdr_8h.html#9cd97e38a347fe21f3c7833e7b7e8110">00111</a> <span class="preprocessor"></span><span class="preprocessor">#define ui32_ptr(x) ptr_cast(x, 32)</span>
<a name="l00112"></a><a class="code" href="mode__hdr_8h.html#76623978be223d108303202d62437c0e">00112</a> <span class="preprocessor"></span><span class="preprocessor">#define ui64_ptr(x) ptr_cast(x, 64)</span>
<a name="l00113"></a><a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">00113</a> <span class="preprocessor"></span><span class="preprocessor">#define unit_ptr(x) ptr_cast(x, BFR_UNIT)</span>
<a name="l00114"></a>00114 <span class="preprocessor"></span>
<a name="l00115"></a><a class="code" href="mode__hdr_8h.html#8ede8cdcdb7daa3ed5431bb52f3808a6">00115</a> <span class="preprocessor">#define BUF_INC (BFR_UNIT >> 3)</span>
<a name="l00116"></a><a class="code" href="mode__hdr_8h.html#4fdbeb9422623907bdda023306704152">00116</a> <span class="preprocessor"></span><span class="preprocessor">#define BUF_ADRMASK ((BFR_UNIT >> 3) - 1)</span>
<a name="l00117"></a>00117 <span class="preprocessor"></span>
<a name="l00118"></a>00118 <span class="comment">/* function pointers might be used for fast XOR operations */</span>
<a name="l00119"></a>00119
<a name="l00120"></a><a class="code" href="mode__hdr_8h.html#9582bfea7fde85d704b94ad1754c930b">00120</a> <span class="keyword">typedef</span> void (*<a class="code" href="mode__hdr_8h.html#9582bfea7fde85d704b94ad1754c930b">xor_function</a>)(<span class="keywordtype">void</span>*, <span class="keyword">const</span> <span class="keywordtype">void</span>* q);
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="comment">/* left and right rotates on 32 and 64 bit variables */</span>
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="preprocessor">#if defined( mh_inline )</span>
<a name="l00125"></a>00125 <span class="preprocessor"></span>
<a name="l00126"></a>00126 <span class="preprocessor">#if !defined( rotl32 ) // NOTE: 0 <= n <= 32 ASSUMED</span>
<a name="l00127"></a><a class="code" href="mode__hdr_8h.html#7b29289ff2c9927f474311a5e733b1c3">00127</a> <span class="preprocessor"></span><a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> uint_32t <a class="code" href="mode__hdr_8h.html#7b29289ff2c9927f474311a5e733b1c3">rotl32</a>(uint_32t x, <span class="keywordtype">int</span> n)
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 <span class="keywordflow">return</span> (((x) << n) | ((x) >> (32 - n)));
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131 <span class="preprocessor">#endif</span>
<a name="l00132"></a>00132 <span class="preprocessor"></span>
<a name="l00133"></a>00133 <span class="preprocessor">#if !defined( rotr32 ) // NOTE: 0 <= n <= 32 ASSUMED</span>
<a name="l00134"></a><a class="code" href="mode__hdr_8h.html#1f56498fbf0a11e750b88c46881a3568">00134</a> <span class="preprocessor"></span><a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> uint_32t <a class="code" href="mode__hdr_8h.html#1f56498fbf0a11e750b88c46881a3568">rotr32</a>(uint_32t x, <span class="keywordtype">int</span> n)
<a name="l00135"></a>00135 {
<a name="l00136"></a>00136 <span class="keywordflow">return</span> (((x) >> n) | ((x) << (32 - n)));
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138 <span class="preprocessor">#endif</span>
<a name="l00139"></a>00139 <span class="preprocessor"></span>
<a name="l00140"></a>00140 <span class="preprocessor">#if !defined( rotl64 ) // NOTE: 0 <= n <= 64 ASSUMED</span>
<a name="l00141"></a><a class="code" href="mode__hdr_8h.html#6c44472622705f121b73186cd5c9d660">00141</a> <span class="preprocessor"></span><a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> uint_64t <a class="code" href="mode__hdr_8h.html#6c44472622705f121b73186cd5c9d660">rotl64</a>(uint_64t x, <span class="keywordtype">int</span> n)
<a name="l00142"></a>00142 {
<a name="l00143"></a>00143 <span class="keywordflow">return</span> (((x) << n) | ((x) >> (64 - n)));
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145 <span class="preprocessor">#endif</span>
<a name="l00146"></a>00146 <span class="preprocessor"></span>
<a name="l00147"></a>00147 <span class="preprocessor">#if !defined( rotr64 ) // NOTE: 0 <= n <= 64 ASSUMED</span>
<a name="l00148"></a><a class="code" href="mode__hdr_8h.html#ead361f859e079fc032e5b8d0467fe6d">00148</a> <span class="preprocessor"></span><a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> uint_64t <a class="code" href="mode__hdr_8h.html#ead361f859e079fc032e5b8d0467fe6d">rotr64</a>(uint_64t x, <span class="keywordtype">int</span> n)
<a name="l00149"></a>00149 {
<a name="l00150"></a>00150 <span class="keywordflow">return</span> (((x) >> n) | ((x) << (64 - n)));
<a name="l00151"></a>00151 }
<a name="l00152"></a>00152 <span class="preprocessor">#endif</span>
<a name="l00153"></a>00153 <span class="preprocessor"></span>
<a name="l00154"></a>00154 <span class="comment">/* byte order inversions for 32 and 64 bit variables */</span>
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="preprocessor">#if !defined(bswap_32)</span>
<a name="l00157"></a><a class="code" href="mode__hdr_8h.html#5acf3e84a72776460543ec82143fa5ee">00157</a> <span class="preprocessor"></span><a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> uint_32t <a class="code" href="mode__hdr_8h.html#5acf3e84a72776460543ec82143fa5ee">bswap_32</a>(uint_32t x)
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 <span class="keywordflow">return</span> ((<a class="code" href="mode__hdr_8h.html#1f56498fbf0a11e750b88c46881a3568">rotr32</a>((x), 24) & 0x00ff00ff) | (<a class="code" href="mode__hdr_8h.html#1f56498fbf0a11e750b88c46881a3568">rotr32</a>((x), 8) & 0xff00ff00));
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161 <span class="preprocessor">#endif</span>
<a name="l00162"></a>00162 <span class="preprocessor"></span>
<a name="l00163"></a>00163 <span class="preprocessor">#if !defined(bswap_64)</span>
<a name="l00164"></a><a class="code" href="mode__hdr_8h.html#cc6a41a5daac2832692e6ec4462e3e4f">00164</a> <span class="preprocessor"></span><a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> uint_64t <a class="code" href="mode__hdr_8h.html#cc6a41a5daac2832692e6ec4462e3e4f">bswap_64</a>(uint_64t x)
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 <span class="keywordflow">return</span> <a class="code" href="mode__hdr_8h.html#5acf3e84a72776460543ec82143fa5ee">bswap_32</a>((uint_32t)(x >> 32)) | ((uint_64t)<a class="code" href="mode__hdr_8h.html#5acf3e84a72776460543ec82143fa5ee">bswap_32</a>((uint_32t)x) << 32);
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168 <span class="preprocessor">#endif</span>
<a name="l00169"></a>00169 <span class="preprocessor"></span>
<a name="l00170"></a><a class="code" href="mode__hdr_8h.html#dfa24e3d954c0776b79cef89224a8388">00170</a> <a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> <span class="keywordtype">void</span> <a class="code" href="mode__hdr_8h.html#dfa24e3d954c0776b79cef89224a8388">bswap32_block</a>(<span class="keywordtype">void</span>* d, <span class="keyword">const</span> <span class="keywordtype">void</span>* s, <span class="keywordtype">int</span> n)
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172 <span class="keywordflow">while</span>(n--)
<a name="l00173"></a>00173 ((uint_32t*)d)[n] = <a class="code" href="mode__hdr_8h.html#5acf3e84a72776460543ec82143fa5ee">bswap_32</a>(((uint_32t*)s)[n]);
<a name="l00174"></a>00174 }
<a name="l00175"></a>00175
<a name="l00176"></a><a class="code" href="mode__hdr_8h.html#57e46cf05000ab7e275524b7dc7d84f8">00176</a> <a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> <span class="keywordtype">void</span> <a class="code" href="mode__hdr_8h.html#57e46cf05000ab7e275524b7dc7d84f8">bswap64_block</a>(<span class="keywordtype">void</span>* d, <span class="keyword">const</span> <span class="keywordtype">void</span>* s, <span class="keywordtype">int</span> n)
<a name="l00177"></a>00177 {
<a name="l00178"></a>00178 <span class="keywordflow">while</span>(n--)
<a name="l00179"></a>00179 ((uint_64t*)d)[n] = <a class="code" href="mode__hdr_8h.html#cc6a41a5daac2832692e6ec4462e3e4f">bswap_64</a>(((uint_64t*)s)[n]);
<a name="l00180"></a>00180 }
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="preprocessor">#else</span>
<a name="l00183"></a>00183 <span class="preprocessor"></span>
<a name="l00184"></a>00184 <span class="preprocessor">#if !defined( rotl32 ) // NOTE: 0 <= n <= 32 ASSUMED</span>
<a name="l00185"></a>00185 <span class="preprocessor"></span><span class="preprocessor"># define rotl32(x,n) (((x) << n) | ((x) >> (32 - n)))</span>
<a name="l00186"></a>00186 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00187"></a>00187 <span class="preprocessor"></span>
<a name="l00188"></a>00188 <span class="preprocessor">#if !defined( rotr32 ) // NOTE: 0 <= n <= 32 ASSUMED</span>
<a name="l00189"></a>00189 <span class="preprocessor"></span><span class="preprocessor"># define rotr32(x,n) (((x) >> n) | ((x) << (32 - n)))</span>
<a name="l00190"></a>00190 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00191"></a>00191 <span class="preprocessor"></span>
<a name="l00192"></a>00192 <span class="preprocessor">#if !defined( rotl64 ) // NOTE: 0 <= n <= 64 ASSUMED</span>
<a name="l00193"></a>00193 <span class="preprocessor"></span><span class="preprocessor"># define rotl64(x,n) (((x) << n) | ((x) >> (64 - n)))</span>
<a name="l00194"></a>00194 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00195"></a>00195 <span class="preprocessor"></span>
<a name="l00196"></a>00196 <span class="preprocessor">#if !defined( rotr64 ) // NOTE: 0 <= n <= 64 ASSUMED</span>
<a name="l00197"></a>00197 <span class="preprocessor"></span><span class="preprocessor"># define rotr64(x,n) (((x) >> n) | ((x) << (64 - n)))</span>
<a name="l00198"></a>00198 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00199"></a>00199 <span class="preprocessor"></span>
<a name="l00200"></a>00200 <span class="preprocessor">#if !defined(bswap_32)</span>
<a name="l00201"></a>00201 <span class="preprocessor"></span><span class="preprocessor"># define bswap_32(x) ((rotr32((x), 24) & 0x00ff00ff) | (rotr32((x), 8) & 0xff00ff00))</span>
<a name="l00202"></a>00202 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00203"></a>00203 <span class="preprocessor"></span>
<a name="l00204"></a>00204 <span class="preprocessor">#if !defined(bswap_64)</span>
<a name="l00205"></a>00205 <span class="preprocessor"></span><span class="preprocessor"># define bswap_64(x) (bswap_32((uint_32t)(x >> 32)) | ((uint_64t)bswap_32((uint_32t)x) << 32))</span>
<a name="l00206"></a>00206 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00207"></a>00207 <span class="preprocessor"></span>
<a name="l00208"></a>00208 <span class="preprocessor">#define bswap32_block(d,s,n) \</span>
<a name="l00209"></a>00209 <span class="preprocessor"> { int _i = (n); while(_i--) ui32_ptr(d)[_i] = bswap_32(ui32_ptr(s)[_i]); }</span>
<a name="l00210"></a>00210 <span class="preprocessor"></span>
<a name="l00211"></a>00211 <span class="preprocessor">#define bswap64_block(d,s,n) \</span>
<a name="l00212"></a>00212 <span class="preprocessor"> { int _i = (n); while(_i--) ui64_ptr(d)[_i] = bswap_64(ui64_ptr(s)[_i]); }</span>
<a name="l00213"></a>00213 <span class="preprocessor"></span>
<a name="l00214"></a>00214 <span class="preprocessor">#endif</span>
<a name="l00215"></a>00215 <span class="preprocessor"></span>
<a name="l00216"></a>00216 <span class="comment">/* support for fast aligned buffer move and XOR operations */</span>
<a name="l00217"></a>00217
<a name="l00218"></a>00218 <span class="preprocessor">#if defined( mh_inline )</span>
<a name="l00219"></a>00219 <span class="preprocessor"></span>
<a name="l00220"></a><a class="code" href="mode__hdr_8h.html#84302b473f2b517016d9adc29fc96c28">00220</a> <a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> <span class="keywordtype">void</span> <a class="code" href="mode__hdr_8h.html#84302b473f2b517016d9adc29fc96c28">move_block</a>(<span class="keywordtype">void</span>* p, <span class="keyword">const</span> <span class="keywordtype">void</span>* q)
<a name="l00221"></a>00221 {
<a name="l00222"></a>00222 memcpy(p, q, 16);
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224
<a name="l00225"></a><a class="code" href="mode__hdr_8h.html#0f54ed87500e2f9378f2f7b350791a7d">00225</a> <a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> <span class="keywordtype">void</span> <a class="code" href="mode__hdr_8h.html#0f54ed87500e2f9378f2f7b350791a7d">move_block_aligned</a>( <span class="keywordtype">void</span> *p, <span class="keyword">const</span> <span class="keywordtype">void</span> *q)
<a name="l00226"></a>00226 {
<a name="l00227"></a>00227 <span class="preprocessor">#if BFR_UNIT == 8</span>
<a name="l00228"></a>00228 <span class="preprocessor"></span> <a class="code" href="mode__hdr_8h.html#84302b473f2b517016d9adc29fc96c28">move_block</a>(p, q);
<a name="l00229"></a>00229 <span class="preprocessor">#else</span>
<a name="l00230"></a>00230 <span class="preprocessor"></span> <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(p)[0] = <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(q)[0]; <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(p)[1] = <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(q)[1];
<a name="l00231"></a>00231 <span class="preprocessor"># if BFR_UNIT == 32</span>
<a name="l00232"></a>00232 <span class="preprocessor"></span> <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(p)[2] = <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(q)[2]; <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(p)[3] = <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(q)[3];
<a name="l00233"></a>00233 <span class="preprocessor"># endif</span>
<a name="l00234"></a>00234 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00235"></a>00235 <span class="preprocessor"></span>}
<a name="l00236"></a>00236
<a name="l00237"></a><a class="code" href="mode__hdr_8h.html#521d91944c7e4547bc1c2779a0ede6d2">00237</a> <a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> <span class="keywordtype">void</span> <a class="code" href="mode__hdr_8h.html#521d91944c7e4547bc1c2779a0ede6d2">xor_block</a>(<span class="keywordtype">void</span>* p, <span class="keyword">const</span> <span class="keywordtype">void</span>* q)
<a name="l00238"></a>00238 {
<a name="l00239"></a>00239 <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 0] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 0]; <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 1] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 1];
<a name="l00240"></a>00240 <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 2] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 2]; <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 3] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 3];
<a name="l00241"></a>00241 <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 4] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 4]; <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 5] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 5];
<a name="l00242"></a>00242 <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 6] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 6]; <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 7] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 7];
<a name="l00243"></a>00243 <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 8] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 8]; <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[ 9] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[ 9];
<a name="l00244"></a>00244 <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[10] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[10]; <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[11] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[11];
<a name="l00245"></a>00245 <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[12] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[12]; <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[13] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[13];
<a name="l00246"></a>00246 <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[14] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[14]; <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(p)[15] ^= <a class="code" href="mode__hdr_8h.html#204476677ab6821ec9a155729a843ace">ui8_ptr</a>(q)[15];
<a name="l00247"></a>00247 }
<a name="l00248"></a>00248
<a name="l00249"></a><a class="code" href="mode__hdr_8h.html#27e5e634e05aa9fa2f09e8c1cabe8100">00249</a> <a class="code" href="mode__hdr_8h.html#3c2f275788c9ca708fafee2fb372a706">mh_inline</a> <span class="keywordtype">void</span> <a class="code" href="mode__hdr_8h.html#27e5e634e05aa9fa2f09e8c1cabe8100">xor_block_aligned</a>( <span class="keywordtype">void</span> *p, <span class="keyword">const</span> <span class="keywordtype">void</span> *q)
<a name="l00250"></a>00250 {
<a name="l00251"></a>00251 <span class="preprocessor">#if BFR_UNIT == 8</span>
<a name="l00252"></a>00252 <span class="preprocessor"></span> <a class="code" href="mode__hdr_8h.html#521d91944c7e4547bc1c2779a0ede6d2">xor_block</a>(p, q);
<a name="l00253"></a>00253 <span class="preprocessor">#else</span>
<a name="l00254"></a>00254 <span class="preprocessor"></span> <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(p)[0] ^= <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(q)[0]; <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(p)[1] ^= <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(q)[1];
<a name="l00255"></a>00255 <span class="preprocessor"># if BFR_UNIT == 32</span>
<a name="l00256"></a>00256 <span class="preprocessor"></span> <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(p)[2] ^= <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(q)[2]; <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(p)[3] ^= <a class="code" href="mode__hdr_8h.html#4fce21c7b83d04cc2f2ea0303aa53237">unit_ptr</a>(q)[3];
<a name="l00257"></a>00257 <span class="preprocessor"># endif</span>
<a name="l00258"></a>00258 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00259"></a>00259 <span class="preprocessor"></span>}
<a name="l00260"></a>00260
<a name="l00261"></a>00261 <span class="preprocessor">#else</span>
<a name="l00262"></a>00262 <span class="preprocessor"></span>
<a name="l00263"></a>00263 <span class="preprocessor">#define move_block(p,q) memcpy((p), (q), 16)</span>
<a name="l00264"></a>00264 <span class="preprocessor"></span>
<a name="l00265"></a>00265 <span class="preprocessor">#if BFR_UNIT == 64</span>
<a name="l00266"></a>00266 <span class="preprocessor"></span><span class="preprocessor"># define move_block_aligned(p,q) \</span>
<a name="l00267"></a>00267 <span class="preprocessor"> ui64_ptr(p)[0] = ui64_ptr(q)[0], ui64_ptr(p)[1] = ui64_ptr(q)[1]</span>
<a name="l00268"></a>00268 <span class="preprocessor"></span><span class="preprocessor">#elif BFR_UNIT == 32</span>
<a name="l00269"></a>00269 <span class="preprocessor"></span><span class="preprocessor"># define move_block_aligned(p,q) \</span>
<a name="l00270"></a>00270 <span class="preprocessor"> ui32_ptr(p)[0] = ui32_ptr(q)[0], ui32_ptr(p)[1] = ui32_ptr(q)[1], \</span>
<a name="l00271"></a>00271 <span class="preprocessor"> ui32_ptr(p)[2] = ui32_ptr(q)[2], ui32_ptr(p)[3] = ui32_ptr(q)[3]</span>
<a name="l00272"></a>00272 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00273"></a>00273 <span class="preprocessor"></span><span class="preprocessor"># define move_block_aligned(p,q) move_block(p,q)</span>
<a name="l00274"></a>00274 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00275"></a>00275 <span class="preprocessor"></span>
<a name="l00276"></a>00276 <span class="preprocessor">#define xor_block(p,q) \</span>
<a name="l00277"></a>00277 <span class="preprocessor"> ui8_ptr(p)[ 0] ^= ui8_ptr(q)[ 0], ui8_ptr(p)[ 1] ^= ui8_ptr(q)[ 1], \</span>
<a name="l00278"></a>00278 <span class="preprocessor"> ui8_ptr(p)[ 2] ^= ui8_ptr(q)[ 2], ui8_ptr(p)[ 3] ^= ui8_ptr(q)[ 3], \</span>
<a name="l00279"></a>00279 <span class="preprocessor"> ui8_ptr(p)[ 4] ^= ui8_ptr(q)[ 4], ui8_ptr(p)[ 5] ^= ui8_ptr(q)[ 5], \</span>
<a name="l00280"></a>00280 <span class="preprocessor"> ui8_ptr(p)[ 6] ^= ui8_ptr(q)[ 6], ui8_ptr(p)[ 7] ^= ui8_ptr(q)[ 7], \</span>
<a name="l00281"></a>00281 <span class="preprocessor"> ui8_ptr(p)[ 8] ^= ui8_ptr(q)[ 8], ui8_ptr(p)[ 9] ^= ui8_ptr(q)[ 9], \</span>
<a name="l00282"></a>00282 <span class="preprocessor"> ui8_ptr(p)[10] ^= ui8_ptr(q)[10], ui8_ptr(p)[11] ^= ui8_ptr(q)[11], \</span>
<a name="l00283"></a>00283 <span class="preprocessor"> ui8_ptr(p)[12] ^= ui8_ptr(q)[12], ui8_ptr(p)[13] ^= ui8_ptr(q)[13], \</span>
<a name="l00284"></a>00284 <span class="preprocessor"> ui8_ptr(p)[14] ^= ui8_ptr(q)[14], ui8_ptr(p)[15] ^= ui8_ptr(q)[15]</span>
<a name="l00285"></a>00285 <span class="preprocessor"></span>
<a name="l00286"></a>00286 <span class="preprocessor">#if BFR_UNIT == 64</span>
<a name="l00287"></a>00287 <span class="preprocessor"></span><span class="preprocessor"># define xor_block_aligned(p,q) \</span>
<a name="l00288"></a>00288 <span class="preprocessor"> ui64_ptr(p)[0] ^= ui64_ptr(q)[0], ui64_ptr(p)[1] ^= ui64_ptr(q)[1]</span>
<a name="l00289"></a>00289 <span class="preprocessor"></span><span class="preprocessor">#elif BFR_UNIT == 32</span>
<a name="l00290"></a>00290 <span class="preprocessor"></span><span class="preprocessor"># define xor_block_aligned(p,q) \</span>
<a name="l00291"></a>00291 <span class="preprocessor"> ui32_ptr(p)[0] ^= ui32_ptr(q)[0], ui32_ptr(p)[1] ^= ui32_ptr(q)[1], \</span>
<a name="l00292"></a>00292 <span class="preprocessor"> ui32_ptr(p)[2] ^= ui32_ptr(q)[2], ui32_ptr(p)[3] ^= ui32_ptr(q)[3]</span>
<a name="l00293"></a>00293 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00294"></a>00294 <span class="preprocessor"></span><span class="preprocessor"># define xor_block_aligned(p,q) xor_block(p,q)</span>
<a name="l00295"></a>00295 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00296"></a>00296 <span class="preprocessor"></span>
<a name="l00297"></a>00297 <span class="preprocessor">#endif</span>
<a name="l00298"></a>00298 <span class="preprocessor"></span>
<a name="l00299"></a>00299 <span class="comment">/* platform byte order to big or little endian order for 32 and 64 bit variables */</span>
<a name="l00300"></a>00300
<a name="l00301"></a>00301 <span class="preprocessor">#if PLATFORM_BYTE_ORDER == IS_BIG_ENDIAN</span>
<a name="l00302"></a>00302 <span class="preprocessor"></span><span class="preprocessor"># define uint_32t_to_le(x) (x) = bswap_32((x))</span>
<a name="l00303"></a>00303 <span class="preprocessor"></span><span class="preprocessor"># define uint_64t_to_le(x) (x) = bswap_64((x))</span>
<a name="l00304"></a>00304 <span class="preprocessor"></span><span class="preprocessor"># define uint_32t_to_be(x)</span>
<a name="l00305"></a>00305 <span class="preprocessor"></span><span class="preprocessor"># define uint_64t_to_be(x)</span>
<a name="l00306"></a>00306 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00307"></a><a class="code" href="mode__hdr_8h.html#c7da5cd6ef1ccb6f9278819f512848ce">00307</a> <span class="preprocessor"></span><span class="preprocessor"># define uint_32t_to_le(x)</span>
<a name="l00308"></a><a class="code" href="mode__hdr_8h.html#5aa70153ea9c1040c7ad45e410e35a7f">00308</a> <span class="preprocessor"></span><span class="preprocessor"># define uint_64t_to_le(x)</span>
<a name="l00309"></a><a class="code" href="mode__hdr_8h.html#19bf5e9b87c7c7860b9dec86758977ab">00309</a> <span class="preprocessor"></span><span class="preprocessor"># define uint_32t_to_be(x) (x) = bswap_32((x))</span>
<a name="l00310"></a><a class="code" href="mode__hdr_8h.html#5e5ede847ab94ec7cb0eed14f4799369">00310</a> <span class="preprocessor"></span><span class="preprocessor"># define uint_64t_to_be(x) (x) = bswap_64((x))</span>
<a name="l00311"></a>00311 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00312"></a>00312 <span class="preprocessor"></span>
<a name="l00313"></a>00313 <span class="preprocessor">#if defined(__cplusplus)</span>
<a name="l00314"></a>00314 <span class="preprocessor"></span>}
<a name="l00315"></a>00315 <span class="preprocessor">#endif</span>
<a name="l00316"></a>00316 <span class="preprocessor"></span>
<a name="l00317"></a>00317 <span class="preprocessor">#endif</span>
</pre></div></div>
<hr size="1"><address style="text-align: right;"><small>Generated on Mon Jul 21 14:09:46 2008 for DTN Reference Implementation by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
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