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cdbf577973
Code without PEDANTIC has intentional "undefined" behaviour. To get best coverage for both PEDANTIC and non-PEDANTIC codepaths, run the sanitizer builds in two different configurations: 1) Without PEDANTIC but with alignment checks disabled. 2) With PEDANTIC. To not overload Travis too much, run one build with clang and the other with gcc (chosen at random). Also remove a micro-optimization in CAST code to be able to -fsanitize=shift. Whether shift sanitization is meaningful for crypto or an obstacle is debatable but since this appears to be the only offender, we might as well keep the check for now. Reviewed-by: Richard Levitte <levitte@openssl.org>
225 lines
9.9 KiB
C
225 lines
9.9 KiB
C
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include "e_os.h"
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#ifdef OPENSSL_SYS_WIN32
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# include <stdlib.h>
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#endif
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#undef c2l
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#define c2l(c,l) (l =((unsigned long)(*((c)++))) , \
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l|=((unsigned long)(*((c)++)))<< 8L, \
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l|=((unsigned long)(*((c)++)))<<16L, \
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l|=((unsigned long)(*((c)++)))<<24L)
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/* NOTE - c is not incremented as per c2l */
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#undef c2ln
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#define c2ln(c,l1,l2,n) { \
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c+=n; \
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l1=l2=0; \
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switch (n) { \
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case 8: l2 =((unsigned long)(*(--(c))))<<24L; \
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case 7: l2|=((unsigned long)(*(--(c))))<<16L; \
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case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \
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case 5: l2|=((unsigned long)(*(--(c)))); \
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case 4: l1 =((unsigned long)(*(--(c))))<<24L; \
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case 3: l1|=((unsigned long)(*(--(c))))<<16L; \
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case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \
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case 1: l1|=((unsigned long)(*(--(c)))); \
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} \
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}
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#undef l2c
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#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
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*((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
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*((c)++)=(unsigned char)(((l)>>16L)&0xff), \
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*((c)++)=(unsigned char)(((l)>>24L)&0xff))
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/* NOTE - c is not incremented as per l2c */
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#undef l2cn
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#define l2cn(l1,l2,c,n) { \
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c+=n; \
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switch (n) { \
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case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \
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case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \
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case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \
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case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
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case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \
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case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \
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case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \
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case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
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} \
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}
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/* NOTE - c is not incremented as per n2l */
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#define n2ln(c,l1,l2,n) { \
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c+=n; \
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l1=l2=0; \
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switch (n) { \
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case 8: l2 =((unsigned long)(*(--(c)))) ; \
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case 7: l2|=((unsigned long)(*(--(c))))<< 8; \
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case 6: l2|=((unsigned long)(*(--(c))))<<16; \
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case 5: l2|=((unsigned long)(*(--(c))))<<24; \
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case 4: l1 =((unsigned long)(*(--(c)))) ; \
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case 3: l1|=((unsigned long)(*(--(c))))<< 8; \
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case 2: l1|=((unsigned long)(*(--(c))))<<16; \
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case 1: l1|=((unsigned long)(*(--(c))))<<24; \
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} \
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}
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/* NOTE - c is not incremented as per l2n */
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#define l2nn(l1,l2,c,n) { \
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c+=n; \
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switch (n) { \
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case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \
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case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
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case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
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case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
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case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \
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case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
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case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
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case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
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} \
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}
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#undef n2l
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#define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \
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l|=((unsigned long)(*((c)++)))<<16L, \
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l|=((unsigned long)(*((c)++)))<< 8L, \
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l|=((unsigned long)(*((c)++))))
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#undef l2n
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#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \
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*((c)++)=(unsigned char)(((l)>>16L)&0xff), \
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*((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
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*((c)++)=(unsigned char)(((l) )&0xff))
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#if defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)
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# define ROTL(a,n) (_lrotl(a,n))
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#else
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# define ROTL(a,n) ((((a)<<(n))&0xffffffffL)|((a)>>((32-(n))&31)))
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#endif
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#define C_M 0x3fc
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#define C_0 22L
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#define C_1 14L
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#define C_2 6L
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#define C_3 2L /* left shift */
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/* The rotate has an extra 16 added to it to help the x86 asm */
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#if defined(CAST_PTR)
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# define E_CAST(n,key,L,R,OP1,OP2,OP3) \
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{ \
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int i; \
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t=(key[n*2] OP1 R)&0xffffffffL; \
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i=key[n*2+1]; \
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t=ROTL(t,i); \
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L^= (((((*(CAST_LONG *)((unsigned char *) \
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CAST_S_table0+((t>>C_2)&C_M)) OP2 \
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*(CAST_LONG *)((unsigned char *) \
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CAST_S_table1+((t<<C_3)&C_M)))&0xffffffffL) OP3 \
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*(CAST_LONG *)((unsigned char *) \
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CAST_S_table2+((t>>C_0)&C_M)))&0xffffffffL) OP1 \
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*(CAST_LONG *)((unsigned char *) \
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CAST_S_table3+((t>>C_1)&C_M)))&0xffffffffL; \
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}
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#elif defined(CAST_PTR2)
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# define E_CAST(n,key,L,R,OP1,OP2,OP3) \
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{ \
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int i; \
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CAST_LONG u,v,w; \
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w=(key[n*2] OP1 R)&0xffffffffL; \
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i=key[n*2+1]; \
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w=ROTL(w,i); \
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u=w>>C_2; \
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v=w<<C_3; \
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u&=C_M; \
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v&=C_M; \
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t= *(CAST_LONG *)((unsigned char *)CAST_S_table0+u); \
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u=w>>C_0; \
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t=(t OP2 *(CAST_LONG *)((unsigned char *)CAST_S_table1+v))&0xffffffffL;\
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v=w>>C_1; \
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u&=C_M; \
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v&=C_M; \
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t=(t OP3 *(CAST_LONG *)((unsigned char *)CAST_S_table2+u)&0xffffffffL);\
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t=(t OP1 *(CAST_LONG *)((unsigned char *)CAST_S_table3+v)&0xffffffffL);\
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L^=(t&0xffffffff); \
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}
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#else
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# define E_CAST(n,key,L,R,OP1,OP2,OP3) \
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{ \
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CAST_LONG a,b,c,d; \
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t=(key[n*2] OP1 R)&0xffffffff; \
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t=ROTL(t,(key[n*2+1])); \
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a=CAST_S_table0[(t>> 8)&0xff]; \
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b=CAST_S_table1[(t )&0xff]; \
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c=CAST_S_table2[(t>>24)&0xff]; \
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d=CAST_S_table3[(t>>16)&0xff]; \
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L^=(((((a OP2 b)&0xffffffffL) OP3 c)&0xffffffffL) OP1 d)&0xffffffffL; \
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}
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#endif
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extern const CAST_LONG CAST_S_table0[256];
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extern const CAST_LONG CAST_S_table1[256];
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extern const CAST_LONG CAST_S_table2[256];
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extern const CAST_LONG CAST_S_table3[256];
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extern const CAST_LONG CAST_S_table4[256];
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extern const CAST_LONG CAST_S_table5[256];
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extern const CAST_LONG CAST_S_table6[256];
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extern const CAST_LONG CAST_S_table7[256];
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