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a48e284317
There were some fixes back on March 13th, 2014 for fixing compiling on MIPS64. Also some fixes on June 25th, 2014 for SPARC64 fixes. Probably more things, but those are what I care about.
140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/*
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* Platform-specific and custom entropy polling functions
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*
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* Copyright (C) 2006-2014, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#if !defined(POLARSSL_CONFIG_FILE)
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#include "polarssl/config.h"
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#else
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#include POLARSSL_CONFIG_FILE
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#endif
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#if defined(POLARSSL_ENTROPY_C)
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#include "polarssl/entropy.h"
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#include "polarssl/entropy_poll.h"
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#if defined(POLARSSL_TIMING_C)
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#include "polarssl/timing.h"
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#endif
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#if defined(POLARSSL_HAVEGE_C)
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#include "polarssl/havege.h"
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#endif
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#if !defined(POLARSSL_NO_PLATFORM_ENTROPY)
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#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
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#if !defined(_WIN32_WINNT)
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#define _WIN32_WINNT 0x0400
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#endif
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#include <windows.h>
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#include <wincrypt.h>
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int platform_entropy_poll( void *data, unsigned char *output, size_t len,
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size_t *olen )
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{
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HCRYPTPROV provider;
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((void) data);
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*olen = 0;
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if( CryptAcquireContext( &provider, NULL, NULL,
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PROV_RSA_FULL, CRYPT_VERIFYCONTEXT ) == FALSE )
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{
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return( POLARSSL_ERR_ENTROPY_SOURCE_FAILED );
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}
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if( CryptGenRandom( provider, (DWORD) len, output ) == FALSE )
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return( POLARSSL_ERR_ENTROPY_SOURCE_FAILED );
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CryptReleaseContext( provider, 0 );
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*olen = len;
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return( 0 );
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}
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#else /* _WIN32 && !EFIX64 && !EFI32 */
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#include <stdio.h>
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int platform_entropy_poll( void *data,
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unsigned char *output, size_t len, size_t *olen )
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{
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FILE *file;
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size_t ret;
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((void) data);
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*olen = 0;
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file = fopen( "/dev/urandom", "rb" );
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if( file == NULL )
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return( POLARSSL_ERR_ENTROPY_SOURCE_FAILED );
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ret = fread( output, 1, len, file );
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if( ret != len )
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{
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fclose( file );
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return( POLARSSL_ERR_ENTROPY_SOURCE_FAILED );
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}
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fclose( file );
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*olen = len;
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return( 0 );
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}
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#endif /* _WIN32 && !EFIX64 && !EFI32 */
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#endif /* !POLARSSL_NO_PLATFORM_ENTROPY */
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#if defined(POLARSSL_TIMING_C)
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int hardclock_poll( void *data,
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unsigned char *output, size_t len, size_t *olen )
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{
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unsigned long timer = hardclock();
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((void) data);
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*olen = 0;
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if( len < sizeof(unsigned long) )
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return( 0 );
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memcpy( output, &timer, sizeof(unsigned long) );
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*olen = sizeof(unsigned long);
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return( 0 );
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}
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#endif /* POLARSSL_TIMING_C */
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#if defined(POLARSSL_HAVEGE_C)
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int havege_poll( void *data,
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unsigned char *output, size_t len, size_t *olen )
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{
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havege_state *hs = (havege_state *) data;
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*olen = 0;
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if( havege_random( hs, output, len ) != 0 )
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return( POLARSSL_ERR_ENTROPY_SOURCE_FAILED );
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*olen = len;
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return( 0 );
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}
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#endif /* POLARSSL_HAVEGE_C */
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#endif /* POLARSSL_ENTROPY_C */
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