Following the license change, modify the boilerplates in crypto/bf/
[openssl.git] / crypto / bf / bf_locl.h
index ecdf38824132f8eb9bedab384a69c3b27aa71010..a59ceae8a9bfdd401739076dc907bbb6ac0c4f41 100644 (file)
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
  */
 
 #ifndef HEADER_BF_LOCL_H
 # define HEADER_BF_LOCL_H
 # include <openssl/opensslconf.h>
-# include "internal/bf_conf.h"
-
-# undef c2l
-# define c2l(c,l)        (l =((unsigned long)(*((c)++)))    , \
-                         l|=((unsigned long)(*((c)++)))<< 8L, \
-                         l|=((unsigned long)(*((c)++)))<<16L, \
-                         l|=((unsigned long)(*((c)++)))<<24L)
-
-/* NOTE - c is not incremented as per c2l */
-# undef c2ln
-# define c2ln(c,l1,l2,n) { \
-                        c+=n; \
-                        l1=l2=0; \
-                        switch (n) { \
-                        case 8: l2 =((unsigned long)(*(--(c))))<<24L; \
-                        case 7: l2|=((unsigned long)(*(--(c))))<<16L; \
-                        case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \
-                        case 5: l2|=((unsigned long)(*(--(c))));     \
-                        case 4: l1 =((unsigned long)(*(--(c))))<<24L; \
-                        case 3: l1|=((unsigned long)(*(--(c))))<<16L; \
-                        case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \
-                        case 1: l1|=((unsigned long)(*(--(c))));     \
-                                } \
-                        }
-
-# undef l2c
-# define l2c(l,c)        (*((c)++)=(unsigned char)(((l)     )&0xff), \
-                         *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
-                         *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
-                         *((c)++)=(unsigned char)(((l)>>24L)&0xff))
-
-/* NOTE - c is not incremented as per l2c */
-# undef l2cn
-# define l2cn(l1,l2,c,n) { \
-                        c+=n; \
-                        switch (n) { \
-                        case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \
-                        case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \
-                        case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \
-                        case 5: *(--(c))=(unsigned char)(((l2)     )&0xff); \
-                        case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \
-                        case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \
-                        case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \
-                        case 1: *(--(c))=(unsigned char)(((l1)     )&0xff); \
-                                } \
-                        }
 
 /* NOTE - c is not incremented as per n2l */
 # define n2ln(c,l1,l2,n) { \
                         l1=l2=0; \
                         switch (n) { \
                         case 8: l2 =((unsigned long)(*(--(c))))    ; \
+                        /* fall thru */                              \
                         case 7: l2|=((unsigned long)(*(--(c))))<< 8; \
+                        /* fall thru */                              \
                         case 6: l2|=((unsigned long)(*(--(c))))<<16; \
+                        /* fall thru */                              \
                         case 5: l2|=((unsigned long)(*(--(c))))<<24; \
+                        /* fall thru */                              \
                         case 4: l1 =((unsigned long)(*(--(c))))    ; \
+                        /* fall thru */                              \
                         case 3: l1|=((unsigned long)(*(--(c))))<< 8; \
+                        /* fall thru */                              \
                         case 2: l1|=((unsigned long)(*(--(c))))<<16; \
+                        /* fall thru */                              \
                         case 1: l1|=((unsigned long)(*(--(c))))<<24; \
                                 } \
                         }
                         c+=n; \
                         switch (n) { \
                         case 8: *(--(c))=(unsigned char)(((l2)    )&0xff); \
+                        /* fall thru */                                    \
                         case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
+                        /* fall thru */                                    \
                         case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
+                        /* fall thru */                                    \
                         case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
+                        /* fall thru */                                    \
                         case 4: *(--(c))=(unsigned char)(((l1)    )&0xff); \
+                        /* fall thru */                                    \
                         case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
+                        /* fall thru */                                    \
                         case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
+                        /* fall thru */                                    \
                         case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
                                 } \
                         }
  * to lookup array 0
  */
 
-# if defined(BF_PTR2)
-
-/*
- * This is basically a special Intel version. Point is that Intel
- * doesn't have many registers, but offers a reach choice of addressing
- * modes. So we spare some registers by directly traversing BF_KEY
- * structure and hiring the most decorated addressing mode. The code
- * generated by EGCS is *perfectly* competitive with assembler
- * implementation!
- */
-#  define BF_ENC(LL,R,KEY,Pi) (\
-        LL^=KEY[Pi], \
-        t=  KEY[BF_ROUNDS+2 +   0 + ((R>>24)&0xFF)], \
-        t+= KEY[BF_ROUNDS+2 + 256 + ((R>>16)&0xFF)], \
-        t^= KEY[BF_ROUNDS+2 + 512 + ((R>>8 )&0xFF)], \
-        t+= KEY[BF_ROUNDS+2 + 768 + ((R    )&0xFF)], \
-        LL^=t \
-        )
-
-# elif defined(BF_PTR)
-
-#  ifndef BF_LONG_LOG2
-#   define BF_LONG_LOG2  2      /* default to BF_LONG being 32 bits */
-#  endif
-#  define BF_M  (0xFF<<BF_LONG_LOG2)
-#  define BF_0  (24-BF_LONG_LOG2)
-#  define BF_1  (16-BF_LONG_LOG2)
-#  define BF_2  ( 8-BF_LONG_LOG2)
-#  define BF_3  BF_LONG_LOG2    /* left shift */
-
-/*
- * This is normally very good on RISC platforms where normally you
- * have to explicitly "multiply" array index by sizeof(BF_LONG)
- * in order to calculate the effective address. This implementation
- * excuses CPU from this extra work. Power[PC] uses should have most
- * fun as (R>>BF_i)&BF_M gets folded into a single instruction, namely
- * rlwinm. So let'em double-check if their compiler does it.
- */
-
-#  define BF_ENC(LL,R,S,P) ( \
-        LL^=P, \
-        LL^= (((*(BF_LONG *)((unsigned char *)&(S[  0])+((R>>BF_0)&BF_M))+ \
-                *(BF_LONG *)((unsigned char *)&(S[256])+((R>>BF_1)&BF_M)))^ \
-                *(BF_LONG *)((unsigned char *)&(S[512])+((R>>BF_2)&BF_M)))+ \
-                *(BF_LONG *)((unsigned char *)&(S[768])+((R<<BF_3)&BF_M))) \
-        )
-# else
-
-/*
- * This is a *generic* version. Seem to perform best on platforms that
- * offer explicit support for extraction of 8-bit nibbles preferably
- * complemented with "multiplying" of array index by sizeof(BF_LONG).
- * For the moment of this writing the list comprises Alpha CPU featuring
- * extbl and s[48]addq instructions.
- */
-
-#  define BF_ENC(LL,R,S,P) ( \
+# define BF_ENC(LL,R,S,P) ( \
         LL^=P, \
-        LL^=((( S[       ((int)(R>>24)&0xff)] + \
-                S[0x0100+((int)(R>>16)&0xff)])^ \
-                S[0x0200+((int)(R>> 8)&0xff)])+ \
-                S[0x0300+((int)(R    )&0xff)])&0xffffffffL \
+        LL^=((( S[       ((R>>24)&0xff)] + \
+                S[0x0100+((R>>16)&0xff)])^ \
+                S[0x0200+((R>> 8)&0xff)])+ \
+                S[0x0300+((R    )&0xff)])&0xffffffffU \
         )
-# endif
 
 #endif