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Import SHA-1 implementation from iPXE. Signed-off-by: Michael Brown <mbrown@fensystems.co.uk>
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#ifndef _BITS_BYTESWAP_H | ||
#define _BITS_BYTESWAP_H | ||
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/** @file | ||
* | ||
* Byte-order swapping functions | ||
* | ||
*/ | ||
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#include <stdint.h> | ||
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static inline __attribute__ (( always_inline, const )) uint16_t | ||
__bswap_variable_16 ( uint16_t x ) { | ||
__asm__ ( "xchgb %b0,%h0" : "=Q" ( x ) : "0" ( x ) ); | ||
return x; | ||
} | ||
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static inline __attribute__ (( always_inline )) void | ||
__bswap_16s ( uint16_t *x ) { | ||
__asm__ ( "rorw $8, %0" : "+m" ( *x ) ); | ||
} | ||
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static inline __attribute__ (( always_inline, const )) uint32_t | ||
__bswap_variable_32 ( uint32_t x ) { | ||
__asm__ ( "bswapl %k0" : "=r" ( x ) : "0" ( x ) ); | ||
return x; | ||
} | ||
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static inline __attribute__ (( always_inline )) void | ||
__bswap_32s ( uint32_t *x ) { | ||
__asm__ ( "bswapl %k0" : "=r" ( *x ) : "0" ( *x ) ); | ||
} | ||
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#ifdef __x86_64__ | ||
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static inline __attribute__ (( always_inline, const )) uint64_t | ||
__bswap_variable_64 ( uint64_t x ) { | ||
__asm__ ( "bswapq %q0" : "=r" ( x ) : "0" ( x ) ); | ||
return x; | ||
} | ||
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#else /* __x86_64__ */ | ||
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static inline __attribute__ (( always_inline, const )) uint64_t | ||
__bswap_variable_64 ( uint64_t x ) { | ||
uint32_t in_high = ( x >> 32 ); | ||
uint32_t in_low = ( x & 0xffffffffUL ); | ||
uint32_t out_high; | ||
uint32_t out_low; | ||
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__asm__ ( "bswapl %0\n\t" | ||
"bswapl %1\n\t" | ||
"xchgl %0,%1\n\t" | ||
: "=r" ( out_high ), "=r" ( out_low ) | ||
: "0" ( in_high ), "1" ( in_low ) ); | ||
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return ( ( ( ( uint64_t ) out_high ) << 32 ) | | ||
( ( uint64_t ) out_low ) ); | ||
} | ||
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#endif /* __x86_64__ */ | ||
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static inline __attribute__ (( always_inline )) void | ||
__bswap_64s ( uint64_t *x ) { | ||
*x = __bswap_variable_64 ( *x ); | ||
} | ||
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/** | ||
* Byte-swap a 16-bit constant | ||
* | ||
* @v value Constant value | ||
* @ret swapped Byte-swapped value | ||
*/ | ||
#define __bswap_constant_16( value ) \ | ||
( ( ( (value) & 0x00ff ) << 8 ) | \ | ||
( ( (value) & 0xff00 ) >> 8 ) ) | ||
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/** | ||
* Byte-swap a 32-bit constant | ||
* | ||
* @v value Constant value | ||
* @ret swapped Byte-swapped value | ||
*/ | ||
#define __bswap_constant_32( value ) \ | ||
( ( ( (value) & 0x000000ffUL ) << 24 ) | \ | ||
( ( (value) & 0x0000ff00UL ) << 8 ) | \ | ||
( ( (value) & 0x00ff0000UL ) >> 8 ) | \ | ||
( ( (value) & 0xff000000UL ) >> 24 ) ) | ||
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/** | ||
* Byte-swap a 64-bit constant | ||
* | ||
* @v value Constant value | ||
* @ret swapped Byte-swapped value | ||
*/ | ||
#define __bswap_constant_64( value ) \ | ||
( ( ( (value) & 0x00000000000000ffULL ) << 56 ) | \ | ||
( ( (value) & 0x000000000000ff00ULL ) << 40 ) | \ | ||
( ( (value) & 0x0000000000ff0000ULL ) << 24 ) | \ | ||
( ( (value) & 0x00000000ff000000ULL ) << 8 ) | \ | ||
( ( (value) & 0x000000ff00000000ULL ) >> 8 ) | \ | ||
( ( (value) & 0x0000ff0000000000ULL ) >> 24 ) | \ | ||
( ( (value) & 0x00ff000000000000ULL ) >> 40 ) | \ | ||
( ( (value) & 0xff00000000000000ULL ) >> 56 ) ) | ||
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/** | ||
* Byte-swap a 16-bit value | ||
* | ||
* @v value Value | ||
* @ret swapped Byte-swapped value | ||
*/ | ||
#define __bswap_16( value ) \ | ||
( __builtin_constant_p (value) ? \ | ||
( ( uint16_t ) __bswap_constant_16 ( ( uint16_t ) (value) ) ) \ | ||
: __bswap_variable_16 (value) ) | ||
#define bswap_16( value ) __bswap_16 (value) | ||
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/** | ||
* Byte-swap a 32-bit value | ||
* | ||
* @v value Value | ||
* @ret swapped Byte-swapped value | ||
*/ | ||
#define __bswap_32( value ) \ | ||
( __builtin_constant_p (value) ? \ | ||
( ( uint32_t ) __bswap_constant_32 ( ( uint32_t ) (value) ) ) \ | ||
: __bswap_variable_32 (value) ) | ||
#define bswap_32( value ) __bswap_32 (value) | ||
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/** | ||
* Byte-swap a 64-bit value | ||
* | ||
* @v value Value | ||
* @ret swapped Byte-swapped value | ||
*/ | ||
#define __bswap_64( value ) \ | ||
( __builtin_constant_p (value) ? \ | ||
( ( uint64_t ) __bswap_constant_64 ( ( uint64_t ) (value) ) ) \ | ||
: __bswap_variable_64 (value) ) | ||
#define bswap_64( value ) __bswap_64 (value) | ||
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#define __cpu_to_leNN( bits, value ) (value) | ||
#define __cpu_to_beNN( bits, value ) __bswap_ ## bits (value) | ||
#define __leNN_to_cpu( bits, value ) (value) | ||
#define __beNN_to_cpu( bits, value ) __bswap_ ## bits (value) | ||
#define __cpu_to_leNNs( bits, ptr ) do { } while ( 0 ) | ||
#define __cpu_to_beNNs( bits, ptr ) __bswap_ ## bits ## s (ptr) | ||
#define __leNN_to_cpus( bits, ptr ) do { } while ( 0 ) | ||
#define __beNN_to_cpus( bits, ptr ) __bswap_ ## bits ## s (ptr) | ||
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#define cpu_to_le16( value ) __cpu_to_leNN ( 16, value ) | ||
#define cpu_to_le32( value ) __cpu_to_leNN ( 32, value ) | ||
#define cpu_to_le64( value ) __cpu_to_leNN ( 64, value ) | ||
#define cpu_to_be16( value ) __cpu_to_beNN ( 16, value ) | ||
#define cpu_to_be32( value ) __cpu_to_beNN ( 32, value ) | ||
#define cpu_to_be64( value ) __cpu_to_beNN ( 64, value ) | ||
#define le16_to_cpu( value ) __leNN_to_cpu ( 16, value ) | ||
#define le32_to_cpu( value ) __leNN_to_cpu ( 32, value ) | ||
#define le64_to_cpu( value ) __leNN_to_cpu ( 64, value ) | ||
#define be16_to_cpu( value ) __beNN_to_cpu ( 16, value ) | ||
#define be32_to_cpu( value ) __beNN_to_cpu ( 32, value ) | ||
#define be64_to_cpu( value ) __beNN_to_cpu ( 64, value ) | ||
#define cpu_to_le16s( ptr ) __cpu_to_leNNs ( 16, ptr ) | ||
#define cpu_to_le32s( ptr ) __cpu_to_leNNs ( 32, ptr ) | ||
#define cpu_to_le64s( ptr ) __cpu_to_leNNs ( 64, ptr ) | ||
#define cpu_to_be16s( ptr ) __cpu_to_beNNs ( 16, ptr ) | ||
#define cpu_to_be32s( ptr ) __cpu_to_beNNs ( 32, ptr ) | ||
#define cpu_to_be64s( ptr ) __cpu_to_beNNs ( 64, ptr ) | ||
#define le16_to_cpus( ptr ) __leNN_to_cpus ( 16, ptr ) | ||
#define le32_to_cpus( ptr ) __leNN_to_cpus ( 32, ptr ) | ||
#define le64_to_cpus( ptr ) __leNN_to_cpus ( 64, ptr ) | ||
#define be16_to_cpus( ptr ) __beNN_to_cpus ( 16, ptr ) | ||
#define be32_to_cpus( ptr ) __beNN_to_cpus ( 32, ptr ) | ||
#define be64_to_cpus( ptr ) __beNN_to_cpus ( 64, ptr ) | ||
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#define htonll( value ) cpu_to_be64 (value) | ||
#define ntohll( value ) be64_to_cpu (value) | ||
#define htonl( value ) cpu_to_be32 (value) | ||
#define ntohl( value ) be32_to_cpu (value) | ||
#define htons( value ) cpu_to_be16 (value) | ||
#define ntohs( value ) be16_to_cpu (value) | ||
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#endif /* _BITS_BYTESWAP_H */ |
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#ifndef _ROTATE_H | ||
#define _ROTATE_H | ||
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/** @file | ||
* | ||
* Bit operations | ||
*/ | ||
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#include <stdint.h> | ||
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static inline __attribute__ (( always_inline )) uint8_t | ||
rol8 ( uint8_t data, unsigned int rotation ) { | ||
return ( ( data << rotation ) | ( data >> ( 8 - rotation ) ) ); | ||
} | ||
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static inline __attribute__ (( always_inline )) uint8_t | ||
ror8 ( uint8_t data, unsigned int rotation ) { | ||
return ( ( data >> rotation ) | ( data << ( 8 - rotation ) ) ); | ||
} | ||
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static inline __attribute__ (( always_inline )) uint16_t | ||
rol16 ( uint16_t data, unsigned int rotation ) { | ||
return ( ( data << rotation ) | ( data >> ( 16 - rotation ) ) ); | ||
} | ||
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static inline __attribute__ (( always_inline )) uint16_t | ||
ror16 ( uint16_t data, unsigned int rotation ) { | ||
return ( ( data >> rotation ) | ( data << ( 16 - rotation ) ) ); | ||
} | ||
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static inline __attribute__ (( always_inline )) uint32_t | ||
rol32 ( uint32_t data, unsigned int rotation ) { | ||
return ( ( data << rotation ) | ( data >> ( 32 - rotation ) ) ); | ||
} | ||
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static inline __attribute__ (( always_inline )) uint32_t | ||
ror32 ( uint32_t data, unsigned int rotation ) { | ||
return ( ( data >> rotation ) | ( data << ( 32 - rotation ) ) ); | ||
} | ||
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static inline __attribute__ (( always_inline )) uint64_t | ||
rol64 ( uint64_t data, unsigned int rotation ) { | ||
return ( ( data << rotation ) | ( data >> ( 64 - rotation ) ) ); | ||
} | ||
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static inline __attribute__ (( always_inline )) uint64_t | ||
ror64 ( uint64_t data, unsigned int rotation ) { | ||
return ( ( data >> rotation ) | ( data << ( 64 - rotation ) ) ); | ||
} | ||
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#endif /* _ROTATE_H */ |
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