crypto/openssl/crypto/modes/modes_lcl.h

   1 /* ====================================================================
   2  * Copyright (c) 2010 The OpenSSL Project.  All rights reserved.
   3  *
   4  * Redistribution and use is governed by OpenSSL license.
   5  * ====================================================================
   6  */
   7
   8 #include <openssl/modes.h>
   9
  10 #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
  11 typedef __int64 i64;
  12 typedef unsigned __int64 u64;
  13 # define U64(C) C##UI64
  14 #elif defined(__arch64__)
  15 typedef long i64;
  16 typedef unsigned long u64;
  17 # define U64(C) C##UL
  18 #else
  19 typedef long long i64;
  20 typedef unsigned long long u64;
  21 # define U64(C) C##ULL
  22 #endif
  23
  24 typedef unsigned int u32;
  25 typedef unsigned char u8;
  26
  27 #define STRICT_ALIGNMENT 1
  28 #ifndef PEDANTIC
  29 # if defined(__i386)    || defined(__i386__)    || \
  30      defined(__x86_64)  || defined(__x86_64__)  || \
  31      defined(_M_IX86)   || defined(_M_AMD64)    || defined(_M_X64) || \
  32      defined(__aarch64__)                       || \
  33      defined(__s390__)  || defined(__s390x__)
  34 #  undef STRICT_ALIGNMENT
  35 # endif
  36 #endif
  37
  38 #if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
  39 # if defined(__GNUC__) && __GNUC__>=2
  40 #  if defined(__x86_64) || defined(__x86_64__)
  41 #   define BSWAP8(x) ({ u64 ret_=(x);                   \
  42                         asm ("bswapq %0"                \
  43                         : "+r"(ret_));   ret_;          })
  44 #   define BSWAP4(x) ({ u32 ret_=(x);                   \
  45                         asm ("bswapl %0"                \
  46                         : "+r"(ret_));   ret_;          })
  47 #  elif (defined(__i386) || defined(__i386__)) && !defined(I386_ONLY)
  48 #   define BSWAP8(x) ({ u32 lo_=(u64)(x)>>32,hi_=(x);   \
  49                         asm ("bswapl %0; bswapl %1"     \
  50                         : "+r"(hi_),"+r"(lo_));         \
  51                         (u64)hi_<<32|lo_;               })
  52 #   define BSWAP4(x) ({ u32 ret_=(x);                   \
  53                         asm ("bswapl %0"                \
  54                         : "+r"(ret_));   ret_;          })
  55 #  elif defined(__aarch64__)
  56 #   define BSWAP8(x) ({ u64 ret_;                       \
  57                         asm ("rev %0,%1"                \
  58                         : "=r"(ret_) : "r"(x)); ret_;   })
  59 #   define BSWAP4(x) ({ u32 ret_;                       \
  60                         asm ("rev %w0,%w1"              \
  61                         : "=r"(ret_) : "r"(x)); ret_;   })
  62 #  elif (defined(__arm__) || defined(__arm)) && !defined(STRICT_ALIGNMENT)
  63 #   define BSWAP8(x) ({ u32 lo_=(u64)(x)>>32,hi_=(x);   \
  64                         asm ("rev %0,%0; rev %1,%1"     \
  65                         : "+r"(hi_),"+r"(lo_));         \
  66                         (u64)hi_<<32|lo_;               })
  67 #   define BSWAP4(x) ({ u32 ret_;                       \
  68                         asm ("rev %0,%1"                \
  69                         : "=r"(ret_) : "r"((u32)(x)));  \
  70                         ret_;                           })
  71 #  endif
  72 # elif defined(_MSC_VER)
  73 #  if _MSC_VER>=1300
  74 #   pragma intrinsic(_byteswap_uint64,_byteswap_ulong)
  75 #   define BSWAP8(x)    _byteswap_uint64((u64)(x))
  76 #   define BSWAP4(x)    _byteswap_ulong((u32)(x))
  77 #  elif defined(_M_IX86)
  78 __inline u32 _bswap4(u32 val)
  79 {
  80 _asm mov eax, val _asm bswap eax}
  81 #   define BSWAP4(x)    _bswap4(x)
  82 #  endif
  83 # endif
  84 #endif
  85 #if defined(BSWAP4) && !defined(STRICT_ALIGNMENT)
  86 # define GETU32(p)       BSWAP4(*(const u32 *)(p))
  87 # define PUTU32(p,v)     *(u32 *)(p) = BSWAP4(v)
  88 #else
  89 # define GETU32(p)       ((u32)(p)[0]<<24|(u32)(p)[1]<<16|(u32)(p)[2]<<8|(u32)(p)[3])
  90 # define PUTU32(p,v)     ((p)[0]=(u8)((v)>>24),(p)[1]=(u8)((v)>>16),(p)[2]=(u8)((v)>>8),(p)[3]=(u8)(v))
  91 #endif
  92 /*- GCM definitions */ typedef struct {
  93     u64 hi, lo;
  94 } u128;
  95
  96 #ifdef  TABLE_BITS
  97 # undef  TABLE_BITS
  98 #endif
  99 /*
 100  * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should
 101  * never be set to 8 [or 1]. For further information see gcm128.c.
 102  */
 103 #define TABLE_BITS 4
 104
 105 struct gcm128_context {
 106     /* Following 6 names follow names in GCM specification */
 107     union {
 108         u64 u[2];
 109         u32 d[4];
 110         u8 c[16];
 111         size_t t[16 / sizeof(size_t)];
 112     } Yi, EKi, EK0, len, Xi, H;
 113     /*
 114      * Relative position of Xi, H and pre-computed Htable is used in some
 115      * assembler modules, i.e. don't change the order!
 116      */
 117 #if TABLE_BITS==8
 118     u128 Htable[256];
 119 #else
 120     u128 Htable[16];
 121     void (*gmult) (u64 Xi[2], const u128 Htable[16]);
 122     void (*ghash) (u64 Xi[2], const u128 Htable[16], const u8 *inp,
 123                    size_t len);
 124 #endif
 125     unsigned int mres, ares;
 126     block128_f block;
 127     void *key;
 128 };
 129
 130 struct xts128_context {
 131     void *key1, *key2;
 132     block128_f block1, block2;
 133 };
 134
 135 struct ccm128_context {
 136     union {
 137         u64 u[2];
 138         u8 c[16];
 139     } nonce, cmac;
 140     u64 blocks;
 141     block128_f block;
 142     void *key;
 143 };