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mbedtls: Update to upstream version 2.16.2
(cherry picked from commit 6321cc8da3)
This commit is contained in:
29
thirdparty/mbedtls/library/entropy_poll.c
vendored
29
thirdparty/mbedtls/library/entropy_poll.c
vendored
@@ -61,43 +61,28 @@
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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 <bcrypt.h>
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#if defined(_MSC_VER) && _MSC_VER <= 1600
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/* Visual Studio 2010 and earlier issue a warning when both <stdint.h> and
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* <intsafe.h> are included, as they redefine a number of <TYPE>_MAX constants.
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* These constants are guaranteed to be the same, though, so we suppress the
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* warning when including intsafe.h.
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*/
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#pragma warning( push )
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#pragma warning( disable : 4005 )
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#endif
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#include <intsafe.h>
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#if defined(_MSC_VER) && _MSC_VER <= 1600
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#pragma warning( pop )
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#endif
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#include <wincrypt.h>
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int mbedtls_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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ULONG len_as_ulong = 0;
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HCRYPTPROV provider;
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((void) data);
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*olen = 0;
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/*
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* BCryptGenRandom takes ULONG for size, which is smaller than size_t on
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* 64-bit Windows platforms. Ensure len's value can be safely converted into
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* a ULONG.
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*/
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if ( FAILED( SizeTToULong( len, &len_as_ulong ) ) )
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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( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
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}
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if ( !BCRYPT_SUCCESS( BCryptGenRandom( NULL, output, len_as_ulong, BCRYPT_USE_SYSTEM_PREFERRED_RNG ) ) )
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if( CryptGenRandom( provider, (DWORD) len, output ) == FALSE )
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{
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CryptReleaseContext( provider, 0 );
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return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
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}
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CryptReleaseContext( provider, 0 );
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*olen = len;
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return( 0 );
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