summaryrefslogtreecommitdiffstats
path: root/utils/tomcrypt/src/headers/tomcrypt_cfg.h
blob: ce0dd5f7fadd6eeb133a5b695c6986b83cc68a0e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
 *
 * LibTomCrypt is a library that provides various cryptographic
 * algorithms in a highly modular and flexible manner.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 */

/* This is the build config file.
 *
 * With this you can setup what to inlcude/exclude automatically during any build.  Just comment
 * out the line that #define's the word for the thing you want to remove.  phew!
 */

#ifndef TOMCRYPT_CFG_H
#define TOMCRYPT_CFG_H

#if defined(_WIN32) || defined(_MSC_VER)
   #define LTC_CALL __cdecl
#elif !defined(LTC_CALL)
   #define LTC_CALL
#endif

#ifndef LTC_EXPORT
   #define LTC_EXPORT
#endif

/* certain platforms use macros for these, making the prototypes broken */
#ifndef LTC_NO_PROTOTYPES

/* you can change how memory allocation works ... */
LTC_EXPORT void * LTC_CALL XMALLOC(size_t n);
LTC_EXPORT void * LTC_CALL XREALLOC(void *p, size_t n);
LTC_EXPORT void * LTC_CALL XCALLOC(size_t n, size_t s);
LTC_EXPORT void LTC_CALL XFREE(void *p);

LTC_EXPORT void LTC_CALL XQSORT(void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *));


/* change the clock function too */
LTC_EXPORT clock_t LTC_CALL XCLOCK(void);

/* various other functions */
LTC_EXPORT void * LTC_CALL XMEMCPY(void *dest, const void *src, size_t n);
LTC_EXPORT int   LTC_CALL XMEMCMP(const void *s1, const void *s2, size_t n);
LTC_EXPORT void * LTC_CALL XMEMSET(void *s, int c, size_t n);

LTC_EXPORT int   LTC_CALL XSTRCMP(const char *s1, const char *s2);

#endif

/* some compilers do not like "inline" (or maybe "static inline"), namely: HP cc, IBM xlc */
#if defined(__HP_cc) || defined(__xlc__)
   #define LTC_INLINE
#elif defined(_MSC_VER)
   #define LTC_INLINE __inline
#else
   #define LTC_INLINE inline
#endif

/* type of argument checking, 0=default, 1=fatal and 2=error+continue, 3=nothing */
#ifndef ARGTYPE
   #define ARGTYPE  0
#endif

#undef LTC_ENCRYPT
#define LTC_ENCRYPT 0
#undef LTC_DECRYPT
#define LTC_DECRYPT 1

/* Controls endianess and size of registers.  Leave uncommented to get platform neutral [slower] code
 *
 * Note: in order to use the optimized macros your platform must support unaligned 32 and 64 bit read/writes.
 * The x86 platforms allow this but some others [ARM for instance] do not.  On those platforms you **MUST**
 * use the portable [slower] macros.
 */
/* detect x86/i386 32bit */
#if defined(__i386__) || defined(__i386) || defined(_M_IX86)
   #define ENDIAN_LITTLE
   #define ENDIAN_32BITWORD
   #define LTC_FAST
#endif

/* detect amd64/x64 */
#if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64)
   #define ENDIAN_LITTLE
   #define ENDIAN_64BITWORD
   #define LTC_FAST
#endif

/* detect PPC32 */
#if defined(LTC_PPC32)
   #define ENDIAN_BIG
   #define ENDIAN_32BITWORD
   #define LTC_FAST
#endif

/* detects MIPS R5900 processors (PS2) */
#if (defined(__R5900) || defined(R5900) || defined(__R5900__)) && (defined(_mips) || defined(__mips__) || defined(mips))
   #define ENDIAN_64BITWORD
   #if defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
     #define ENDIAN_BIG
   #endif
     #define ENDIAN_LITTLE
   #endif
#endif

/* detect AIX */
#if defined(_AIX) && defined(_BIG_ENDIAN)
  #define ENDIAN_BIG
  #if defined(__LP64__) || defined(_ARCH_PPC64)
    #define ENDIAN_64BITWORD
  #else
    #define ENDIAN_32BITWORD
  #endif
#endif

/* detect HP-UX */
#if defined(__hpux) || defined(__hpux__)
  #define ENDIAN_BIG
  #if defined(__ia64) || defined(__ia64__) || defined(__LP64__)
    #define ENDIAN_64BITWORD
  #else
    #define ENDIAN_32BITWORD
  #endif
#endif

/* detect Apple OS X */
#if defined(__APPLE__) && defined(__MACH__)
  #if defined(__LITTLE_ENDIAN__) || defined(__x86_64__)
    #define ENDIAN_LITTLE
  #else
    #define ENDIAN_BIG
  #endif
  #if defined(__LP64__) || defined(__x86_64__)
    #define ENDIAN_64BITWORD
  #else
    #define ENDIAN_32BITWORD
  #endif
#endif

/* detect SPARC and SPARC64 */
#if defined(__sparc__) || defined(__sparc)
  #define ENDIAN_BIG
  #if defined(__arch64__) || defined(__sparcv9) || defined(__sparc_v9__)
    #define ENDIAN_64BITWORD
  #else
    #define ENDIAN_32BITWORD
  #endif
#endif

/* detect IBM S390(x) */
#if defined(__s390x__) || defined(__s390__)
  #define ENDIAN_BIG
  #if defined(__s390x__)
    #define ENDIAN_64BITWORD
  #else
    #define ENDIAN_32BITWORD
  #endif
#endif

/* detect PPC64 */
#if defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__)
   #define ENDIAN_64BITWORD
   #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
      #define ENDIAN_BIG
   #elif  __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
      #define ENDIAN_LITTLE
   #endif
   #define LTC_FAST
#endif

/* endianness fallback */
#if !defined(ENDIAN_BIG) && !defined(ENDIAN_LITTLE)
  #if defined(_BYTE_ORDER) && _BYTE_ORDER == _BIG_ENDIAN || \
      defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN || \
      defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ || \
      defined(__BIG_ENDIAN__) || \
      defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || \
      defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
    #define ENDIAN_BIG
  #elif defined(_BYTE_ORDER) && _BYTE_ORDER == _LITTLE_ENDIAN || \
      defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN || \
      defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ || \
      defined(__LITTLE_ENDIAN__) || \
      defined(__ARMEL__) || defined(__THUMBEL__) || defined(__AARCH64EL__) || \
      defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__)
    #define ENDIAN_LITTLE
  #else
    #error Cannot detect endianness
  #endif
#endif

/* ulong64: 64-bit data type */
#ifdef _MSC_VER
   #define CONST64(n) n ## ui64
   typedef unsigned __int64 ulong64;
#else
   #define CONST64(n) n ## ULL
   typedef unsigned long long ulong64;
#endif

/* ulong32: "32-bit at least" data type */
#if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64) || \
    defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__) || \
    defined(__s390x__) || defined(__arch64__) || defined(__aarch64__) || \
    defined(__sparcv9) || defined(__sparc_v9__) || defined(__sparc64__) || \
    defined(__ia64) || defined(__ia64__) || defined(__itanium__) || defined(_M_IA64) || \
    defined(__LP64__) || defined(_LP64) || defined(__64BIT__)
   typedef unsigned ulong32;
   #if !defined(ENDIAN_64BITWORD) && !defined(ENDIAN_32BITWORD)
     #define ENDIAN_64BITWORD
   #endif
#else
   typedef unsigned long ulong32;
   #if !defined(ENDIAN_64BITWORD) && !defined(ENDIAN_32BITWORD)
     #define ENDIAN_32BITWORD
   #endif
#endif

#if defined(ENDIAN_64BITWORD) && !defined(_MSC_VER)
typedef unsigned long long ltc_mp_digit;
#else
typedef unsigned long ltc_mp_digit;
#endif

/* No asm is a quick way to disable anything "not portable" */
#ifdef LTC_NO_ASM
   #define ENDIAN_NEUTRAL
   #undef ENDIAN_32BITWORD
   #undef ENDIAN_64BITWORD
   #undef LTC_FAST
   #define LTC_NO_ROLC
   #define LTC_NO_BSWAP
#endif

/* No LTC_FAST if: explicitly disabled OR non-gcc/non-clang compiler OR old gcc OR using -ansi -std=c99 */
#if defined(LTC_NO_FAST) || (__GNUC__ < 4) || defined(__STRICT_ANSI__)
   #undef LTC_FAST
#endif

#ifdef LTC_FAST
   #define LTC_FAST_TYPE_PTR_CAST(x) ((LTC_FAST_TYPE*)(void*)(x))
   #ifdef ENDIAN_64BITWORD
   typedef ulong64 __attribute__((__may_alias__)) LTC_FAST_TYPE;
   #else
   typedef ulong32 __attribute__((__may_alias__)) LTC_FAST_TYPE;
   #endif
#endif

#if !defined(ENDIAN_NEUTRAL) && (defined(ENDIAN_BIG) || defined(ENDIAN_LITTLE)) && !(defined(ENDIAN_32BITWORD) || defined(ENDIAN_64BITWORD))
   #error You must specify a word size as well as endianess in tomcrypt_cfg.h
#endif

#if !(defined(ENDIAN_BIG) || defined(ENDIAN_LITTLE))
   #define ENDIAN_NEUTRAL
#endif

#if (defined(ENDIAN_32BITWORD) && defined(ENDIAN_64BITWORD))
   #error Cannot be 32 and 64 bit words...
#endif

/* gcc 4.3 and up has a bswap builtin; detect it by gcc version.
 * clang also supports the bswap builtin, and although clang pretends
 * to be gcc (macro-wise, anyway), clang pretends to be a version
 * prior to gcc 4.3, so we can't detect bswap that way.  Instead,
 * clang has a __has_builtin mechanism that can be used to check
 * for builtins:
 * http://clang.llvm.org/docs/LanguageExtensions.html#feature_check */
#ifndef __has_builtin
   #define __has_builtin(x) 0
#endif
#if !defined(LTC_NO_BSWAP) && defined(__GNUC__) &&                      \
   ((__GNUC__ * 100 + __GNUC_MINOR__ >= 403) ||                         \
    (__has_builtin(__builtin_bswap32) && __has_builtin(__builtin_bswap64)))
   #define LTC_HAVE_BSWAP_BUILTIN
#endif


/* ref:         HEAD -> master, tag: v1.18.2 */
/* git commit:  7e7eb695d581782f04b24dc444cbfde86af59853 */
/* commit time: 2018-07-01 22:49:01 +0200 */