2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #ifdef OPENSSL_SYS_WIN32
15 #define c2l(c,l) (l =((unsigned long)(*((c)++))) , \
16 l|=((unsigned long)(*((c)++)))<< 8L, \
17 l|=((unsigned long)(*((c)++)))<<16L, \
18 l|=((unsigned long)(*((c)++)))<<24L)
20 /* NOTE - c is not incremented as per c2l */
22 #define c2ln(c,l1,l2,n) { \
26 case 8: l2 =((unsigned long)(*(--(c))))<<24L; \
27 case 7: l2|=((unsigned long)(*(--(c))))<<16L; \
28 case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \
29 case 5: l2|=((unsigned long)(*(--(c)))); \
30 case 4: l1 =((unsigned long)(*(--(c))))<<24L; \
31 case 3: l1|=((unsigned long)(*(--(c))))<<16L; \
32 case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \
33 case 1: l1|=((unsigned long)(*(--(c)))); \
38 #define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
39 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
40 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
41 *((c)++)=(unsigned char)(((l)>>24L)&0xff))
43 /* NOTE - c is not incremented as per l2c */
45 #define l2cn(l1,l2,c,n) { \
48 case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \
49 case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \
50 case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \
51 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
52 case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \
53 case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \
54 case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \
55 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
59 /* NOTE - c is not incremented as per n2l */
60 #define n2ln(c,l1,l2,n) { \
64 case 8: l2 =((unsigned long)(*(--(c)))) ; \
66 case 7: l2|=((unsigned long)(*(--(c))))<< 8; \
68 case 6: l2|=((unsigned long)(*(--(c))))<<16; \
70 case 5: l2|=((unsigned long)(*(--(c))))<<24; \
72 case 4: l1 =((unsigned long)(*(--(c)))) ; \
74 case 3: l1|=((unsigned long)(*(--(c))))<< 8; \
76 case 2: l1|=((unsigned long)(*(--(c))))<<16; \
78 case 1: l1|=((unsigned long)(*(--(c))))<<24; \
82 /* NOTE - c is not incremented as per l2n */
83 #define l2nn(l1,l2,c,n) { \
86 case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \
88 case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
90 case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
92 case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
94 case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \
96 case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
98 case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
100 case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
105 #define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \
106 l|=((unsigned long)(*((c)++)))<<16L, \
107 l|=((unsigned long)(*((c)++)))<< 8L, \
108 l|=((unsigned long)(*((c)++))))
111 #define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \
112 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
113 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
114 *((c)++)=(unsigned char)(((l) )&0xff))
116 #if defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)
117 # define ROTL(a,n) (_lrotl(a,n))
119 # define ROTL(a,n) ((((a)<<(n))&0xffffffffL)|((a)>>((32-(n))&31)))
126 #define C_3 2L /* left shift */
128 /* The rotate has an extra 16 added to it to help the x86 asm */
129 #if defined(CAST_PTR)
130 # define E_CAST(n,key,L,R,OP1,OP2,OP3) \
133 t=(key[n*2] OP1 R)&0xffffffffL; \
136 L^= (((((*(CAST_LONG *)((unsigned char *) \
137 CAST_S_table0+((t>>C_2)&C_M)) OP2 \
138 *(CAST_LONG *)((unsigned char *) \
139 CAST_S_table1+((t<<C_3)&C_M)))&0xffffffffL) OP3 \
140 *(CAST_LONG *)((unsigned char *) \
141 CAST_S_table2+((t>>C_0)&C_M)))&0xffffffffL) OP1 \
142 *(CAST_LONG *)((unsigned char *) \
143 CAST_S_table3+((t>>C_1)&C_M)))&0xffffffffL; \
145 #elif defined(CAST_PTR2)
146 # define E_CAST(n,key,L,R,OP1,OP2,OP3) \
150 w=(key[n*2] OP1 R)&0xffffffffL; \
157 t= *(CAST_LONG *)((unsigned char *)CAST_S_table0+u); \
159 t=(t OP2 *(CAST_LONG *)((unsigned char *)CAST_S_table1+v))&0xffffffffL;\
163 t=(t OP3 *(CAST_LONG *)((unsigned char *)CAST_S_table2+u)&0xffffffffL);\
164 t=(t OP1 *(CAST_LONG *)((unsigned char *)CAST_S_table3+v)&0xffffffffL);\
168 # define E_CAST(n,key,L,R,OP1,OP2,OP3) \
171 t=(key[n*2] OP1 R)&0xffffffff; \
172 t=ROTL(t,(key[n*2+1])); \
173 a=CAST_S_table0[(t>> 8)&0xff]; \
174 b=CAST_S_table1[(t )&0xff]; \
175 c=CAST_S_table2[(t>>24)&0xff]; \
176 d=CAST_S_table3[(t>>16)&0xff]; \
177 L^=(((((a OP2 b)&0xffffffffL) OP3 c)&0xffffffffL) OP1 d)&0xffffffffL; \
181 extern const CAST_LONG CAST_S_table0[256];
182 extern const CAST_LONG CAST_S_table1[256];
183 extern const CAST_LONG CAST_S_table2[256];
184 extern const CAST_LONG CAST_S_table3[256];
185 extern const CAST_LONG CAST_S_table4[256];
186 extern const CAST_LONG CAST_S_table5[256];
187 extern const CAST_LONG CAST_S_table6[256];
188 extern const CAST_LONG CAST_S_table7[256];