Import PR 730 from mbedTLS project

Fixes UWP build while we wait for it to get into next release.
This commit is contained in:
Fabio Alessandrelli 2018-02-20 09:35:52 +01:00
parent a2ef49f8b9
commit a929a5aea5
2 changed files with 41 additions and 9 deletions

View file

@ -54,28 +54,41 @@
#define _WIN32_WINNT 0x0400
#endif
#include <windows.h>
#include <wincrypt.h>
#include <bcrypt.h>
#if _MSC_VER <= 1600
/* Visual Studio 2010 and earlier issue a warning when both <stdint.h> and <intsafe.h> are included, as they
* redefine a number of <TYPE>_MAX constants. These constants are guaranteed to be the same, though, so
* we suppress the warning when including intsafe.h.
*/
#pragma warning( push )
#pragma warning( disable : 4005 )
#endif
#include <intsafe.h>
#if _MSC_VER <= 1600
#pragma warning( pop )
#endif
int mbedtls_platform_entropy_poll( void *data, unsigned char *output, size_t len,
size_t *olen )
{
HCRYPTPROV provider;
ULONG len_as_ulong = 0;
((void) data);
*olen = 0;
if( CryptAcquireContext( &provider, NULL, NULL,
PROV_RSA_FULL, CRYPT_VERIFYCONTEXT ) == FALSE )
/*
* BCryptGenRandom takes ULONG for size, which is smaller than size_t on 64-bit platforms.
* Ensure len's value can be safely converted into a ULONG.
*/
if ( FAILED( SizeTToULong( len, &len_as_ulong ) ) )
{
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
}
if( CryptGenRandom( provider, (DWORD) len, output ) == FALSE )
if ( !BCRYPT_SUCCESS( BCryptGenRandom( NULL, output, len_as_ulong, BCRYPT_USE_SYSTEM_PREFERRED_RNG ) ) )
{
CryptReleaseContext( provider, 0 );
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
}
CryptReleaseContext( provider, 0 );
*olen = len;
return( 0 );

View file

@ -62,6 +62,18 @@
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
#include <windows.h>
#if _MSC_VER <= 1600
/* Visual Studio 2010 and earlier issue a warning when both <stdint.h> and <intsafe.h> are included, as they
* redefine a number of <TYPE>_MAX constants. These constants are guaranteed to be the same, though, so
* we suppress the warning when including intsafe.h.
*/
#pragma warning( push )
#pragma warning( disable : 4005 )
#endif
#include <intsafe.h>
#if _MSC_VER <= 1600
#pragma warning( pop )
#endif
#else
#include <time.h>
#endif
@ -1110,6 +1122,7 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
char filename[MAX_PATH];
char *p;
size_t len = strlen( path );
int lengthAsInt = 0;
WIN32_FIND_DATAW file_data;
HANDLE hFind;
@ -1124,7 +1137,10 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
p = filename + len;
filename[len++] = '*';
w_ret = MultiByteToWideChar( CP_ACP, 0, filename, (int)len, szDir,
if ( FAILED ( SizeTToInt( len, &lengthAsInt ) ) )
return( MBEDTLS_ERR_X509_FILE_IO_ERROR );
w_ret = MultiByteToWideChar( CP_ACP, 0, filename, lengthAsInt, szDir,
MAX_PATH - 3 );
if( w_ret == 0 )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
@ -1141,8 +1157,11 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
if( file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
continue;
if ( FAILED( SizeTToInt( wcslen( file_data.cFileName ), &lengthAsInt ) ) )
return( MBEDTLS_ERR_X509_FILE_IO_ERROR );
w_ret = WideCharToMultiByte( CP_ACP, 0, file_data.cFileName,
lstrlenW( file_data.cFileName ),
lengthAsInt,
p, (int) len - 1,
NULL, NULL );
if( w_ret == 0 )