diff options
Diffstat (limited to 'ext/libressl/crypto/modes/modes_lcl.h')
| -rw-r--r-- | ext/libressl/crypto/modes/modes_lcl.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/ext/libressl/crypto/modes/modes_lcl.h b/ext/libressl/crypto/modes/modes_lcl.h new file mode 100644 index 0000000..bfea189 --- /dev/null +++ b/ext/libressl/crypto/modes/modes_lcl.h @@ -0,0 +1,113 @@ +/* $OpenBSD: modes_lcl.h,v 1.10 2016/12/21 15:49:29 jsing Exp $ */ +/* ==================================================================== + * Copyright (c) 2010 The OpenSSL Project. All rights reserved. + * + * Redistribution and use is governed by OpenSSL license. + * ==================================================================== + */ + +#include <machine/endian.h> + +#include <openssl/opensslconf.h> + +#include <openssl/modes.h> + +__BEGIN_HIDDEN_DECLS + +#if defined(_LP64) +typedef long i64; +typedef unsigned long u64; +#define U64(C) C##UL +#else +typedef long long i64; +typedef unsigned long long u64; +#define U64(C) C##ULL +#endif + +typedef unsigned int u32; +typedef unsigned char u8; + +#if !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) +#if defined(__GNUC__) && __GNUC__>=2 +# if defined(__x86_64) || defined(__x86_64__) +# define BSWAP8(x) ({ u64 ret=(x); \ + asm ("bswapq %0" \ + : "+r"(ret)); ret; }) +# define BSWAP4(x) ({ u32 ret=(x); \ + asm ("bswapl %0" \ + : "+r"(ret)); ret; }) +# elif (defined(__i386) || defined(__i386__)) +# define BSWAP8(x) ({ u32 lo=(u64)(x)>>32,hi=(x); \ + asm ("bswapl %0; bswapl %1" \ + : "+r"(hi),"+r"(lo)); \ + (u64)hi<<32|lo; }) +# define BSWAP4(x) ({ u32 ret=(x); \ + asm ("bswapl %0" \ + : "+r"(ret)); ret; }) +# elif (defined(__arm__) || defined(__arm)) && !defined(__STRICT_ALIGNMENT) +# if (__ARM_ARCH >= 6) +# define BSWAP8(x) ({ u32 lo=(u64)(x)>>32,hi=(x); \ + asm ("rev %0,%0; rev %1,%1" \ + : "+r"(hi),"+r"(lo)); \ + (u64)hi<<32|lo; }) +# define BSWAP4(x) ({ u32 ret; \ + asm ("rev %0,%1" \ + : "=r"(ret) : "r"((u32)(x))); \ + ret; }) +# endif +# endif +#endif +#endif + +#if defined(BSWAP4) && !defined(__STRICT_ALIGNMENT) +#define GETU32(p) BSWAP4(*(const u32 *)(p)) +#define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v) +#else +#define GETU32(p) ((u32)(p)[0]<<24|(u32)(p)[1]<<16|(u32)(p)[2]<<8|(u32)(p)[3]) +#define PUTU32(p,v) ((p)[0]=(u8)((v)>>24),(p)[1]=(u8)((v)>>16),(p)[2]=(u8)((v)>>8),(p)[3]=(u8)(v)) +#endif + +/* GCM definitions */ + +typedef struct { u64 hi,lo; } u128; + +#ifdef TABLE_BITS +#undef TABLE_BITS +#endif +/* + * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should + * never be set to 8 [or 1]. For further information see gcm128.c. + */ +#define TABLE_BITS 4 + +struct gcm128_context { + /* Following 6 names follow names in GCM specification */ + union { u64 u[2]; u32 d[4]; u8 c[16]; size_t t[16/sizeof(size_t)]; } + Yi,EKi,EK0,len,Xi,H; + /* Relative position of Xi, H and pre-computed Htable is used + * in some assembler modules, i.e. don't change the order! */ +#if TABLE_BITS==8 + u128 Htable[256]; +#else + u128 Htable[16]; + void (*gmult)(u64 Xi[2],const u128 Htable[16]); + void (*ghash)(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); +#endif + unsigned int mres, ares; + block128_f block; + void *key; +}; + +struct xts128_context { + void *key1, *key2; + block128_f block1,block2; +}; + +struct ccm128_context { + union { u64 u[2]; u8 c[16]; } nonce, cmac; + u64 blocks; + block128_f block; + void *key; +}; + +__END_HIDDEN_DECLS |