1 /*
2 * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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
8 */
9 #ifndef HEADER_MODES_LCL_H
10 #define HEADER_MODES_LCL_H
11
12 #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
13 typedef __int64 i64;
14 typedef unsigned __int64 u64;
15 # define U64(C) C##UI64
16 #elif defined(__arch64__)
17 typedef long i64;
18 typedef unsigned long u64;
19 # define U64(C) C##UL
20 #else
21 typedef long long i64;
22 typedef unsigned long long u64;
23 # define U64(C) C##ULL
24 #endif
25
26 typedef unsigned int u32;
27 typedef unsigned char u8;
28
29 #define STRICT_ALIGNMENT 1
30 #ifndef PEDANTIC
31 # if defined(__i386) || defined(__i386__) || \
32 defined(__x86_64) || defined(__x86_64__) || \
33 defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \
34 defined(__aarch64__) || \
35 defined(__s390__) || defined(__s390x__)
36 # undef STRICT_ALIGNMENT
37 # endif
38 #endif
39
40 #if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
41 # if defined(__GNUC__) && __GNUC__>=2
42 # if defined(__x86_64) || defined(__x86_64__)
43 # define BSWAP8(x) ({ u64 ret_=(x); \
44 asm ("bswapq %0" \
45 : "+r"(ret_)); ret_; })
46 # define BSWAP4(x) ({ u32 ret_=(x); \
47 asm ("bswapl %0" \
48 : "+r"(ret_)); ret_; })
49 # elif (defined(__i386) || defined(__i386__)) && !defined(I386_ONLY)
50 # define BSWAP8(x) ({ u32 lo_=(u64)(x)>>32,hi_=(x); \
51 asm ("bswapl %0; bswapl %1" \
52 : "+r"(hi_),"+r"(lo_)); \
53 (u64)hi_<<32|lo_; })
54 # define BSWAP4(x) ({ u32 ret_=(x); \
55 asm ("bswapl %0" \
56 : "+r"(ret_)); ret_; })
57 # elif defined(__aarch64__)
58 # define BSWAP8(x) ({ u64 ret_; \
59 asm ("rev %0,%1" \
60 : "=r"(ret_) : "r"(x)); ret_; })
61 # define BSWAP4(x) ({ u32 ret_; \
62 asm ("rev %w0,%w1" \
63 : "=r"(ret_) : "r"(x)); ret_; })
64 # elif (defined(__arm__) || defined(__arm)) && !defined(STRICT_ALIGNMENT)
65 # define BSWAP8(x) ({ u32 lo_=(u64)(x)>>32,hi_=(x); \
66 asm ("rev %0,%0; rev %1,%1" \
67 : "+r"(hi_),"+r"(lo_)); \
68 (u64)hi_<<32|lo_; })
69 # define BSWAP4(x) ({ u32 ret_; \
70 asm ("rev %0,%1" \
71 : "=r"(ret_) : "r"((u32)(x))); \
72 ret_; })
73 # endif
74 # elif defined(_MSC_VER)
75 # if _MSC_VER>=1300
76 # pragma intrinsic(_byteswap_uint64,_byteswap_ulong)
77 # define BSWAP8(x) _byteswap_uint64((u64)(x))
78 # define BSWAP4(x) _byteswap_ulong((u32)(x))
79 # elif defined(_M_IX86)
_bswap4(u32 val)80 __inline u32 _bswap4(u32 val)
81 {
82 _asm mov eax, val _asm bswap eax}
83 # define BSWAP4(x) _bswap4(x)
84 # endif
85 # endif
86 #endif
87 #if defined(BSWAP4) && !defined(STRICT_ALIGNMENT)
88 # define GETU32(p) BSWAP4(*(const u32 *)(p))
89 # define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v)
90 #else
91 # define GETU32(p) ((u32)(p)[0]<<24|(u32)(p)[1]<<16|(u32)(p)[2]<<8|(u32)(p)[3])
92 # define PUTU32(p,v) ((p)[0]=(u8)((v)>>24),(p)[1]=(u8)((v)>>16),(p)[2]=(u8)((v)>>8),(p)[3]=(u8)(v))
93 #endif
94 /*- GCM definitions */ typedef struct {
95 u64 hi, lo;
96 } u128;
97
98 #ifdef TABLE_BITS
99 # undef TABLE_BITS
100 #endif
101 /*
102 * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should
103 * never be set to 8 [or 1]. For further information see gcm128.c.
104 */
105 #define TABLE_BITS 4
106
107 #ifndef ROL32
108 # define ROL32(a,n) (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
109 #endif
110
111 #endif
112
113