Sweden-Number/dlls/wow64/wow64_private.h

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/*
* WoW64 private definitions
*
* Copyright 2021 Alexandre Julliard
*
* 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
*/
#ifndef __WOW64_PRIVATE_H
#define __WOW64_PRIVATE_H
#include "syscall.h"
#include "struct32.h"
#define SYSCALL_ENTRY(func) extern NTSTATUS WINAPI wow64_ ## func( UINT *args ) DECLSPEC_HIDDEN;
ALL_SYSCALLS
#undef SYSCALL_ENTRY
void * WINAPI Wow64AllocateTemp( SIZE_T size ) DECLSPEC_HIDDEN;
void WINAPI Wow64ApcRoutine( ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3, CONTEXT *context ) DECLSPEC_HIDDEN;
extern void init_file_redirects(void) DECLSPEC_HIDDEN;
extern BOOL get_file_redirect( OBJECT_ATTRIBUTES *attr ) DECLSPEC_HIDDEN;
extern USHORT native_machine DECLSPEC_HIDDEN;
extern USHORT current_machine DECLSPEC_HIDDEN;
extern ULONG_PTR args_alignment DECLSPEC_HIDDEN;
struct object_attr64
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING str;
SECURITY_DESCRIPTOR sd;
};
static inline void *get_rva( HMODULE module, DWORD va )
{
return (void *)((char *)module + va);
}
/* cf. GetSystemWow64Directory2 */
static inline const WCHAR *get_machine_wow64_dir( USHORT machine )
{
switch (machine)
{
case IMAGE_FILE_MACHINE_TARGET_HOST: return L"\\??\\C:\\windows\\system32";
case IMAGE_FILE_MACHINE_I386: return L"\\??\\C:\\windows\\syswow64";
case IMAGE_FILE_MACHINE_ARMNT: return L"\\??\\C:\\windows\\sysarm32";
case IMAGE_FILE_MACHINE_AMD64: return L"\\??\\C:\\windows\\sysx8664";
case IMAGE_FILE_MACHINE_ARM64: return L"\\??\\C:\\windows\\sysarm64";
default: return NULL;
}
}
static inline ULONG get_ulong( UINT **args ) { return *(*args)++; }
static inline HANDLE get_handle( UINT **args ) { return LongToHandle( *(*args)++ ); }
static inline void *get_ptr( UINT **args ) { return ULongToPtr( *(*args)++ ); }
static inline ULONG64 get_ulong64( UINT **args )
{
ULONG64 ret;
*args = (UINT *)(((ULONG_PTR)*args + args_alignment - 1) & ~(args_alignment - 1));
ret = *(ULONG64 *)*args;
*args += 2;
return ret;
}
static inline ULONG_PTR get_zero_bits( ULONG_PTR zero_bits )
{
return zero_bits ? zero_bits : 0x7fffffff;
}
static inline void **addr_32to64( void **addr, ULONG *addr32 )
{
if (!addr32) return NULL;
*addr = ULongToPtr( *addr32 );
return addr;
}
static inline SIZE_T *size_32to64( SIZE_T *size, ULONG *size32 )
{
if (!size32) return NULL;
*size = *size32;
return size;
}
static inline void *apc_32to64( ULONG func )
{
return func ? Wow64ApcRoutine : NULL;
}
static inline void *apc_param_32to64( ULONG func, ULONG context )
{
if (!func) return ULongToPtr( context );
return (void *)(ULONG_PTR)(((ULONG64)func << 32) | context);
}
static inline IO_STATUS_BLOCK *iosb_32to64( IO_STATUS_BLOCK *io, IO_STATUS_BLOCK32 *io32 )
{
if (!io32) return NULL;
io->Pointer = io32;
return io;
}
static inline UNICODE_STRING *unicode_str_32to64( UNICODE_STRING *str, const UNICODE_STRING32 *str32 )
{
if (!str32) return NULL;
str->Length = str32->Length;
str->MaximumLength = str32->MaximumLength;
str->Buffer = ULongToPtr( str32->Buffer );
return str;
}
static inline CLIENT_ID *client_id_32to64( CLIENT_ID *id, const CLIENT_ID32 *id32 )
{
if (!id32) return NULL;
id->UniqueProcess = LongToHandle( id32->UniqueProcess );
id->UniqueThread = LongToHandle( id32->UniqueThread );
return id;
}
static inline SECURITY_DESCRIPTOR *secdesc_32to64( SECURITY_DESCRIPTOR *out, const SECURITY_DESCRIPTOR *in )
{
/* relative descr has the same layout for 32 and 64 */
const SECURITY_DESCRIPTOR_RELATIVE *sd = (const SECURITY_DESCRIPTOR_RELATIVE *)in;
if (!in) return NULL;
out->Revision = sd->Revision;
out->Sbz1 = sd->Sbz1;
out->Control = sd->Control & ~SE_SELF_RELATIVE;
if (sd->Control & SE_SELF_RELATIVE)
{
if (sd->Owner) out->Owner = (PSID)((BYTE *)sd + sd->Owner);
if (sd->Group) out->Group = (PSID)((BYTE *)sd + sd->Group);
if ((sd->Control & SE_SACL_PRESENT) && sd->Sacl) out->Sacl = (PSID)((BYTE *)sd + sd->Sacl);
if ((sd->Control & SE_DACL_PRESENT) && sd->Dacl) out->Dacl = (PSID)((BYTE *)sd + sd->Dacl);
}
else
{
out->Owner = ULongToPtr( sd->Owner );
out->Group = ULongToPtr( sd->Group );
if (sd->Control & SE_SACL_PRESENT) out->Sacl = ULongToPtr( sd->Sacl );
if (sd->Control & SE_DACL_PRESENT) out->Dacl = ULongToPtr( sd->Dacl );
}
return out;
}
static inline OBJECT_ATTRIBUTES *objattr_32to64( struct object_attr64 *out, const OBJECT_ATTRIBUTES32 *in )
{
memset( out, 0, sizeof(*out) );
if (!in) return NULL;
if (in->Length != sizeof(*in)) return &out->attr;
out->attr.Length = sizeof(out->attr);
out->attr.RootDirectory = LongToHandle( in->RootDirectory );
out->attr.Attributes = in->Attributes;
out->attr.ObjectName = unicode_str_32to64( &out->str, ULongToPtr( in->ObjectName ));
out->attr.SecurityQualityOfService = ULongToPtr( in->SecurityQualityOfService );
out->attr.SecurityDescriptor = secdesc_32to64( &out->sd, ULongToPtr( in->SecurityDescriptor ));
return &out->attr;
}
static inline OBJECT_ATTRIBUTES *objattr_32to64_redirect( struct object_attr64 *out,
const OBJECT_ATTRIBUTES32 *in )
{
OBJECT_ATTRIBUTES *attr = objattr_32to64( out, in );
if (attr) get_file_redirect( attr );
return attr;
}
static inline void put_handle( ULONG *handle32, HANDLE handle )
{
*handle32 = HandleToULong( handle );
}
static inline void put_addr( ULONG *addr32, void *addr )
{
if (addr32) *addr32 = PtrToUlong( addr );
}
static inline void put_size( ULONG *size32, SIZE_T size )
{
if (size32) *size32 = min( size, MAXDWORD );
}
static inline void put_client_id( CLIENT_ID32 *id32, const CLIENT_ID *id )
{
if (!id32) return;
id32->UniqueProcess = HandleToLong( id->UniqueProcess );
id32->UniqueThread = HandleToLong( id->UniqueThread );
}
static inline void put_iosb( IO_STATUS_BLOCK32 *io32, const IO_STATUS_BLOCK *io )
{
/* sync I/O modifies the 64-bit iosb right away, so in that case we update the 32-bit one */
/* async I/O leaves the 64-bit one untouched and updates the 32-bit one directly later on */
if (io32 && io->Pointer != io32)
{
io32->Status = io->Status;
io32->Information = io->Information;
}
}
extern void put_section_image_info( SECTION_IMAGE_INFORMATION32 *info32,
const SECTION_IMAGE_INFORMATION *info ) DECLSPEC_HIDDEN;
extern void put_vm_counters( VM_COUNTERS_EX32 *info32, const VM_COUNTERS_EX *info,
ULONG size ) DECLSPEC_HIDDEN;
#endif /* __WOW64_PRIVATE_H */