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Sweden-Number/dlls/bcrypt/bcrypt_main.c

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/*
* Copyright 2009 Henri Verbeet for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#ifdef HAVE_COMMONCRYPTO_COMMONDIGEST_H
#include <CommonCrypto/CommonDigest.h>
#include <CommonCrypto/CommonHMAC.h>
#elif defined(SONAME_LIBGNUTLS)
#include <gnutls/gnutls.h>
#include <gnutls/crypto.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "ntsecapi.h"
#include "bcrypt.h"
#include "bcrypt_internal.h"
#include "wine/debug.h"
#include "wine/library.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(bcrypt);
static HINSTANCE instance;
#if defined(HAVE_GNUTLS_HASH) && !defined(HAVE_COMMONCRYPTO_COMMONDIGEST_H)
WINE_DECLARE_DEBUG_CHANNEL(winediag);
static void *libgnutls_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f
MAKE_FUNCPTR(gnutls_global_deinit);
MAKE_FUNCPTR(gnutls_global_init);
MAKE_FUNCPTR(gnutls_global_set_log_function);
MAKE_FUNCPTR(gnutls_global_set_log_level);
MAKE_FUNCPTR(gnutls_perror);
#undef MAKE_FUNCPTR
static void gnutls_log( int level, const char *msg )
{
TRACE( "<%d> %s", level, msg );
}
static BOOL gnutls_initialize(void)
{
int ret;
if (!(libgnutls_handle = wine_dlopen( SONAME_LIBGNUTLS, RTLD_NOW, NULL, 0 )))
{
ERR_(winediag)( "failed to load libgnutls, no support for crypto hashes\n" );
return FALSE;
}
#define LOAD_FUNCPTR(f) \
if (!(p##f = wine_dlsym( libgnutls_handle, #f, NULL, 0 ))) \
{ \
ERR( "failed to load %s\n", #f ); \
goto fail; \
}
LOAD_FUNCPTR(gnutls_global_deinit)
LOAD_FUNCPTR(gnutls_global_init)
LOAD_FUNCPTR(gnutls_global_set_log_function)
LOAD_FUNCPTR(gnutls_global_set_log_level)
LOAD_FUNCPTR(gnutls_perror)
#undef LOAD_FUNCPTR
if ((ret = pgnutls_global_init()) != GNUTLS_E_SUCCESS)
{
pgnutls_perror( ret );
goto fail;
}
if (TRACE_ON( bcrypt ))
{
pgnutls_global_set_log_level( 4 );
pgnutls_global_set_log_function( gnutls_log );
}
return TRUE;
fail:
wine_dlclose( libgnutls_handle, NULL, 0 );
libgnutls_handle = NULL;
return FALSE;
}
static void gnutls_uninitialize(void)
{
pgnutls_global_deinit();
wine_dlclose( libgnutls_handle, NULL, 0 );
libgnutls_handle = NULL;
}
#endif /* HAVE_GNUTLS_HASH && !HAVE_COMMONCRYPTO_COMMONDIGEST_H */
NTSTATUS WINAPI BCryptEnumAlgorithms(ULONG dwAlgOperations, ULONG *pAlgCount,
BCRYPT_ALGORITHM_IDENTIFIER **ppAlgList, ULONG dwFlags)
{
FIXME("%08x, %p, %p, %08x - stub\n", dwAlgOperations, pAlgCount, ppAlgList, dwFlags);
*ppAlgList=NULL;
*pAlgCount=0;
return STATUS_NOT_IMPLEMENTED;
}
#define MAGIC_ALG (('A' << 24) | ('L' << 16) | ('G' << 8) | '0')
#define MAGIC_HASH (('H' << 24) | ('A' << 16) | ('S' << 8) | 'H')
struct object
{
ULONG magic;
};
enum alg_id
{
ALG_ID_MD5,
ALG_ID_RNG,
ALG_ID_SHA1,
ALG_ID_SHA256,
ALG_ID_SHA384,
ALG_ID_SHA512
};
#define MAX_HASH_OUTPUT_BYTES 64
#define MAX_HASH_BLOCK_BITS 1024
static const struct {
ULONG object_length;
ULONG hash_length;
ULONG block_bits;
const WCHAR *alg_name;
} alg_props[] = {
/* ALG_ID_MD5 */ { 274, 16, 512, BCRYPT_MD5_ALGORITHM },
/* ALG_ID_RNG */ { 0, 0, 0, BCRYPT_RNG_ALGORITHM },
/* ALG_ID_SHA1 */ { 278, 20, 512, BCRYPT_SHA1_ALGORITHM },
/* ALG_ID_SHA256 */ { 286, 32, 512, BCRYPT_SHA256_ALGORITHM },
/* ALG_ID_SHA384 */ { 382, 48, 1024, BCRYPT_SHA384_ALGORITHM },
/* ALG_ID_SHA512 */ { 382, 64, 1024, BCRYPT_SHA512_ALGORITHM }
};
struct algorithm
{
struct object hdr;
enum alg_id id;
BOOL hmac;
};
NTSTATUS WINAPI BCryptGenRandom(BCRYPT_ALG_HANDLE handle, UCHAR *buffer, ULONG count, ULONG flags)
{
const DWORD supported_flags = BCRYPT_USE_SYSTEM_PREFERRED_RNG;
struct algorithm *algorithm = handle;
TRACE("%p, %p, %u, %08x - semi-stub\n", handle, buffer, count, flags);
if (!algorithm)
{
/* It's valid to call without an algorithm if BCRYPT_USE_SYSTEM_PREFERRED_RNG
* is set. In this case the preferred system RNG is used.
*/
if (!(flags & BCRYPT_USE_SYSTEM_PREFERRED_RNG))
return STATUS_INVALID_HANDLE;
}
else if (algorithm->hdr.magic != MAGIC_ALG || algorithm->id != ALG_ID_RNG)
return STATUS_INVALID_HANDLE;
if (!buffer)
return STATUS_INVALID_PARAMETER;
if (flags & ~supported_flags)
FIXME("unsupported flags %08x\n", flags & ~supported_flags);
if (algorithm)
FIXME("ignoring selected algorithm\n");
/* When zero bytes are requested the function returns success too. */
if (!count)
return STATUS_SUCCESS;
if (algorithm || (flags & BCRYPT_USE_SYSTEM_PREFERRED_RNG))
{
if (RtlGenRandom(buffer, count))
return STATUS_SUCCESS;
}
FIXME("called with unsupported parameters, returning error\n");
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS WINAPI BCryptOpenAlgorithmProvider( BCRYPT_ALG_HANDLE *handle, LPCWSTR id, LPCWSTR implementation, DWORD flags )
{
struct algorithm *alg;
enum alg_id alg_id;
const DWORD supported_flags = BCRYPT_ALG_HANDLE_HMAC_FLAG;
TRACE( "%p, %s, %s, %08x\n", handle, wine_dbgstr_w(id), wine_dbgstr_w(implementation), flags );
if (!handle || !id) return STATUS_INVALID_PARAMETER;
if (flags & ~supported_flags)
{
FIXME( "unsupported flags %08x\n", flags & ~supported_flags);
return STATUS_NOT_IMPLEMENTED;
}
if (!strcmpW( id, BCRYPT_SHA1_ALGORITHM )) alg_id = ALG_ID_SHA1;
else if (!strcmpW( id, BCRYPT_MD5_ALGORITHM )) alg_id = ALG_ID_MD5;
else if (!strcmpW( id, BCRYPT_RNG_ALGORITHM )) alg_id = ALG_ID_RNG;
else if (!strcmpW( id, BCRYPT_SHA256_ALGORITHM )) alg_id = ALG_ID_SHA256;
else if (!strcmpW( id, BCRYPT_SHA384_ALGORITHM )) alg_id = ALG_ID_SHA384;
else if (!strcmpW( id, BCRYPT_SHA512_ALGORITHM )) alg_id = ALG_ID_SHA512;
else
{
FIXME( "algorithm %s not supported\n", debugstr_w(id) );
return STATUS_NOT_IMPLEMENTED;
}
if (implementation && strcmpW( implementation, MS_PRIMITIVE_PROVIDER ))
{
FIXME( "implementation %s not supported\n", debugstr_w(implementation) );
return STATUS_NOT_IMPLEMENTED;
}
if (!(alg = HeapAlloc( GetProcessHeap(), 0, sizeof(*alg) ))) return STATUS_NO_MEMORY;
alg->hdr.magic = MAGIC_ALG;
alg->id = alg_id;
alg->hmac = flags & BCRYPT_ALG_HANDLE_HMAC_FLAG;
*handle = alg;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptCloseAlgorithmProvider( BCRYPT_ALG_HANDLE handle, DWORD flags )
{
struct algorithm *alg = handle;
TRACE( "%p, %08x\n", handle, flags );
if (!alg || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE;
HeapFree( GetProcessHeap(), 0, alg );
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptGetFipsAlgorithmMode(BOOLEAN *enabled)
{
FIXME("%p - semi-stub\n", enabled);
if (!enabled)
return STATUS_INVALID_PARAMETER;
*enabled = FALSE;
return STATUS_SUCCESS;
}
struct hash_impl
{
union
{
MD5_CTX md5;
SHA_CTX sha1;
SHA256_CTX sha256;
SHA512_CTX sha512;
} u;
};
static NTSTATUS hash_init( struct hash_impl *hash, enum alg_id alg_id )
{
switch (alg_id)
{
case ALG_ID_MD5:
MD5Init( &hash->u.md5 );
break;
case ALG_ID_SHA1:
A_SHAInit( &hash->u.sha1 );
break;
case ALG_ID_SHA256:
sha256_init( &hash->u.sha256 );
break;
case ALG_ID_SHA384:
sha384_init( &hash->u.sha512 );
break;
case ALG_ID_SHA512:
sha512_init( &hash->u.sha512 );
break;
default:
ERR( "unhandled id %u\n", alg_id );
return STATUS_NOT_IMPLEMENTED;
}
return STATUS_SUCCESS;
}
static NTSTATUS hash_update( struct hash_impl *hash, enum alg_id alg_id,
UCHAR *input, ULONG size )
{
switch (alg_id)
{
case ALG_ID_MD5:
MD5Update( &hash->u.md5, input, size );
break;
case ALG_ID_SHA1:
A_SHAUpdate( &hash->u.sha1, input, size );
break;
case ALG_ID_SHA256:
sha256_update( &hash->u.sha256, input, size );
break;
case ALG_ID_SHA384:
sha384_update( &hash->u.sha512, input, size );
break;
case ALG_ID_SHA512:
sha512_update( &hash->u.sha512, input, size );
break;
default:
ERR( "unhandled id %u\n", alg_id );
return STATUS_NOT_IMPLEMENTED;
}
return STATUS_SUCCESS;
}
static NTSTATUS hash_finish( struct hash_impl *hash, enum alg_id alg_id,
UCHAR *output, ULONG size )
{
switch (alg_id)
{
case ALG_ID_MD5:
MD5Final( &hash->u.md5 );
memcpy( output, hash->u.md5.digest, 16 );
break;
case ALG_ID_SHA1:
A_SHAFinal( &hash->u.sha1, (ULONG *)output );
break;
case ALG_ID_SHA256:
sha256_finalize( &hash->u.sha256, output );
break;
case ALG_ID_SHA384:
sha384_finalize( &hash->u.sha512, output );
break;
case ALG_ID_SHA512:
sha512_finalize( &hash->u.sha512, output );
break;
default:
ERR( "unhandled id %u\n", alg_id );
return STATUS_NOT_IMPLEMENTED;
}
return STATUS_SUCCESS;
}
struct hash
{
struct object hdr;
enum alg_id alg_id;
BOOL hmac;
struct hash_impl outer;
struct hash_impl inner;
};
static NTSTATUS generic_alg_property( enum alg_id id, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size )
{
if (!strcmpW( prop, BCRYPT_OBJECT_LENGTH ))
{
if (!alg_props[id].object_length)
return STATUS_NOT_SUPPORTED;
*ret_size = sizeof(ULONG);
if (size < sizeof(ULONG))
return STATUS_BUFFER_TOO_SMALL;
if (buf)
*(ULONG *)buf = alg_props[id].object_length;
return STATUS_SUCCESS;
}
if (!strcmpW( prop, BCRYPT_HASH_LENGTH ))
{
if (!alg_props[id].hash_length)
return STATUS_NOT_SUPPORTED;
*ret_size = sizeof(ULONG);
if (size < sizeof(ULONG))
return STATUS_BUFFER_TOO_SMALL;
if(buf)
*(ULONG*)buf = alg_props[id].hash_length;
return STATUS_SUCCESS;
}
if (!strcmpW( prop, BCRYPT_ALGORITHM_NAME ))
{
*ret_size = (strlenW(alg_props[id].alg_name)+1)*sizeof(WCHAR);
if (size < *ret_size)
return STATUS_BUFFER_TOO_SMALL;
if(buf)
memcpy(buf, alg_props[id].alg_name, *ret_size);
return STATUS_SUCCESS;
}
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS get_alg_property( enum alg_id id, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size )
{
NTSTATUS status;
status = generic_alg_property( id, prop, buf, size, ret_size );
if (status == STATUS_NOT_IMPLEMENTED)
FIXME( "unsupported property %s\n", debugstr_w(prop) );
return status;
}
static NTSTATUS get_hash_property( enum alg_id id, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size )
{
NTSTATUS status;
status = generic_alg_property( id, prop, buf, size, ret_size );
if (status == STATUS_NOT_IMPLEMENTED)
FIXME( "unsupported property %s\n", debugstr_w(prop) );
return status;
}
NTSTATUS WINAPI BCryptGetProperty( BCRYPT_HANDLE handle, LPCWSTR prop, UCHAR *buffer, ULONG count, ULONG *res, ULONG flags )
{
struct object *object = handle;
TRACE( "%p, %s, %p, %u, %p, %08x\n", handle, wine_dbgstr_w(prop), buffer, count, res, flags );
if (!object) return STATUS_INVALID_HANDLE;
if (!prop || !res) return STATUS_INVALID_PARAMETER;
switch (object->magic)
{
case MAGIC_ALG:
{
const struct algorithm *alg = (const struct algorithm *)object;
return get_alg_property( alg->id, prop, buffer, count, res );
}
case MAGIC_HASH:
{
const struct hash *hash = (const struct hash *)object;
return get_hash_property( hash->alg_id, prop, buffer, count, res );
}
default:
WARN( "unknown magic %08x\n", object->magic );
return STATUS_INVALID_HANDLE;
}
}
NTSTATUS WINAPI BCryptCreateHash( BCRYPT_ALG_HANDLE algorithm, BCRYPT_HASH_HANDLE *handle, UCHAR *object, ULONG objectlen,
UCHAR *secret, ULONG secretlen, ULONG flags )
{
struct algorithm *alg = algorithm;
UCHAR buffer[MAX_HASH_BLOCK_BITS / 8] = {0};
struct hash *hash;
int block_bytes;
NTSTATUS status;
int i;
TRACE( "%p, %p, %p, %u, %p, %u, %08x - stub\n", algorithm, handle, object, objectlen,
secret, secretlen, flags );
if (flags)
{
FIXME( "unimplemented flags %08x\n", flags );
return STATUS_NOT_IMPLEMENTED;
}
if (!alg || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE;
if (object) FIXME( "ignoring object buffer\n" );
if (!(hash = HeapAlloc( GetProcessHeap(), 0, sizeof(*hash) ))) return STATUS_NO_MEMORY;
hash->hdr.magic = MAGIC_HASH;
hash->alg_id = alg->id;
hash->hmac = alg->hmac;
/* initialize hash */
if ((status = hash_init( &hash->inner, hash->alg_id ))) goto end;
if (!hash->hmac) goto end;
/* initialize hmac */
if ((status = hash_init( &hash->outer, hash->alg_id ))) goto end;
block_bytes = alg_props[hash->alg_id].block_bits / 8;
if (secretlen > block_bytes)
{
struct hash_impl temp;
if ((status = hash_init( &temp, hash->alg_id ))) goto end;
if ((status = hash_update( &temp, hash->alg_id, secret, secretlen ))) goto end;
if ((status = hash_finish( &temp, hash->alg_id, buffer,
alg_props[hash->alg_id].hash_length ))) goto end;
}
else
{
memcpy( buffer, secret, secretlen );
}
for (i = 0; i < block_bytes; i++) buffer[i] ^= 0x5c;
if ((status = hash_update( &hash->outer, hash->alg_id, buffer, block_bytes ))) goto end;
for (i = 0; i < block_bytes; i++) buffer[i] ^= (0x5c ^ 0x36);
status = hash_update( &hash->inner, hash->alg_id, buffer, block_bytes );
end:
if (status != STATUS_SUCCESS)
{
HeapFree( GetProcessHeap(), 0, hash );
return status;
}
*handle = hash;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptDuplicateHash( BCRYPT_HASH_HANDLE handle, BCRYPT_HASH_HANDLE *handle_copy,
UCHAR *object, ULONG objectlen, ULONG flags )
{
struct hash *hash_orig = handle;
struct hash *hash_copy;
TRACE( "%p, %p, %p, %u, %u\n", handle, handle_copy, object, objectlen, flags );
if (!hash_orig || hash_orig->hdr.magic != MAGIC_HASH) return STATUS_INVALID_HANDLE;
if (!handle_copy) return STATUS_INVALID_PARAMETER;
if (object) FIXME( "ignoring object buffer\n" );
if (!(hash_copy = HeapAlloc( GetProcessHeap(), 0, sizeof(*hash_copy) )))
return STATUS_NO_MEMORY;
memcpy( hash_copy, hash_orig, sizeof(*hash_orig) );
*handle_copy = hash_copy;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptDestroyHash( BCRYPT_HASH_HANDLE handle )
{
struct hash *hash = handle;
TRACE( "%p\n", handle );
if (!hash || hash->hdr.magic != MAGIC_HASH) return STATUS_INVALID_HANDLE;
HeapFree( GetProcessHeap(), 0, hash );
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptHashData( BCRYPT_HASH_HANDLE handle, UCHAR *input, ULONG size, ULONG flags )
{
struct hash *hash = handle;
TRACE( "%p, %p, %u, %08x\n", handle, input, size, flags );
if (!hash || hash->hdr.magic != MAGIC_HASH) return STATUS_INVALID_HANDLE;
if (!input) return STATUS_SUCCESS;
return hash_update( &hash->inner, hash->alg_id, input, size );
}
NTSTATUS WINAPI BCryptFinishHash( BCRYPT_HASH_HANDLE handle, UCHAR *output, ULONG size, ULONG flags )
{
UCHAR buffer[MAX_HASH_OUTPUT_BYTES];
struct hash *hash = handle;
NTSTATUS status;
int hash_length;
TRACE( "%p, %p, %u, %08x\n", handle, output, size, flags );
if (!hash || hash->hdr.magic != MAGIC_HASH) return STATUS_INVALID_HANDLE;
if (!output) return STATUS_INVALID_PARAMETER;
if (!hash->hmac)
return hash_finish( &hash->inner, hash->alg_id, output, size );
hash_length = alg_props[hash->alg_id].hash_length;
if ((status = hash_finish( &hash->inner, hash->alg_id, buffer, hash_length ))) return status;
if ((status = hash_update( &hash->outer, hash->alg_id, buffer, hash_length ))) return status;
return hash_finish( &hash->outer, hash->alg_id, output, size );
}
NTSTATUS WINAPI BCryptHash( BCRYPT_ALG_HANDLE algorithm, UCHAR *secret, ULONG secretlen,
UCHAR *input, ULONG inputlen, UCHAR *output, ULONG outputlen )
{
NTSTATUS status;
BCRYPT_HASH_HANDLE handle;
TRACE( "%p, %p, %u, %p, %u, %p, %u\n", algorithm, secret, secretlen,
input, inputlen, output, outputlen );
status = BCryptCreateHash( algorithm, &handle, NULL, 0, secret, secretlen, 0);
if (status != STATUS_SUCCESS)
{
return status;
}
status = BCryptHashData( handle, input, inputlen, 0 );
if (status != STATUS_SUCCESS)
{
BCryptDestroyHash( handle );
return status;
}
status = BCryptFinishHash( handle, output, outputlen, 0 );
if (status != STATUS_SUCCESS)
{
BCryptDestroyHash( handle );
return status;
}
return BCryptDestroyHash( handle );
}
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
instance = hinst;
DisableThreadLibraryCalls( hinst );
#if defined(HAVE_GNUTLS_HASH) && !defined(HAVE_COMMONCRYPTO_COMMONDIGEST_H)
gnutls_initialize();
#endif
break;
case DLL_PROCESS_DETACH:
if (reserved) break;
#if defined(HAVE_GNUTLS_HASH) && !defined(HAVE_COMMONCRYPTO_COMMONDIGEST_H)
gnutls_uninitialize();
#endif
break;
}
return TRUE;
}
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