1 /* ====================================================================
2 * Copyright (c) 2010 The OpenSSL Project. All rights reserved.
4 * Redistribution and use is governed by OpenSSL license.
5 * ====================================================================
8 #include <openssl/modes.h>
11 #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
13 typedef unsigned __int64 u64;
14 #define U64(C) C##UI64
15 #elif defined(__arch64__)
17 typedef unsigned long u64;
20 typedef long long i64;
21 typedef unsigned long long u64;
25 typedef unsigned int u32;
26 typedef unsigned char u8;
28 #define STRICT_ALIGNMENT 1
30 #if defined(__i386) || defined(__i386__) || \
31 defined(__x86_64) || defined(__x86_64__) || \
32 defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \
33 defined(__aarch64__) || \
34 defined(__s390__) || defined(__s390x__)
35 # undef STRICT_ALIGNMENT
39 #if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
40 #if defined(__GNUC__) && __GNUC__>=2
41 # if defined(__x86_64) || defined(__x86_64__)
42 # define BSWAP8(x) ({ u64 ret=(x); \
45 # define BSWAP4(x) ({ u32 ret=(x); \
48 # elif (defined(__i386) || defined(__i386__)) && !defined(I386_ONLY)
49 # define BSWAP8(x) ({ u32 lo=(u64)(x)>>32,hi=(x); \
50 asm ("bswapl %0; bswapl %1" \
51 : "+r"(hi),"+r"(lo)); \
53 # define BSWAP4(x) ({ u32 ret=(x); \
56 # elif defined(__aarch64__)
57 # define BSWAP8(x) ({ u64 ret; \
59 : "=r"(ret) : "r"(x)); ret; })
60 # define BSWAP4(x) ({ u32 ret; \
62 : "=r"(ret) : "r"(x)); ret; })
63 # elif (defined(__arm__) || defined(__arm)) && !defined(STRICT_ALIGNMENT)
64 # define BSWAP8(x) ({ u32 lo=(u64)(x)>>32,hi=(x); \
65 asm ("rev %0,%0; rev %1,%1" \
66 : "+r"(hi),"+r"(lo)); \
68 # define BSWAP4(x) ({ u32 ret; \
70 : "=r"(ret) : "r"((u32)(x))); \
73 #elif defined(_MSC_VER)
75 # pragma intrinsic(_byteswap_uint64,_byteswap_ulong)
76 # define BSWAP8(x) _byteswap_uint64((u64)(x))
77 # define BSWAP4(x) _byteswap_ulong((u32)(x))
78 # elif defined(_M_IX86)
79 __inline u32 _bswap4(u32 val) {
83 # define BSWAP4(x) _bswap4(x)
88 #if defined(BSWAP4) && !defined(STRICT_ALIGNMENT)
89 #define GETU32(p) BSWAP4(*(const u32 *)(p))
90 #define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v)
92 #define GETU32(p) ((u32)(p)[0]<<24|(u32)(p)[1]<<16|(u32)(p)[2]<<8|(u32)(p)[3])
93 #define PUTU32(p,v) ((p)[0]=(u8)((v)>>24),(p)[1]=(u8)((v)>>16),(p)[2]=(u8)((v)>>8),(p)[3]=(u8)(v))
98 typedef struct { u64 hi,lo; } u128;
104 * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should
105 * never be set to 8 [or 1]. For further information see gcm128.c.
109 struct gcm128_context {
110 /* Following 6 names follow names in GCM specification */
111 union { u64 u[2]; u32 d[4]; u8 c[16]; size_t t[16/sizeof(size_t)]; }
113 /* Relative position of Xi, H and pre-computed Htable is used
114 * in some assembler modules, i.e. don't change the order! */
119 void (*gmult)(u64 Xi[2],const u128 Htable[16]);
120 void (*ghash)(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len);
122 unsigned int mres, ares;
127 struct xts128_context {
129 block128_f block1,block2;
132 struct ccm128_context {
133 union { u64 u[2]; u8 c[16]; } nonce, cmac;