Sweden-Number/dlls/ntoskrnl.exe/ntoskrnl.c

551 lines
16 KiB
C

/*
* ntoskrnl.exe implementation
*
* Copyright (C) 2007 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
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winternl.h"
#include "excpt.h"
#include "ddk/wdm.h"
#include "wine/unicode.h"
#include "wine/server.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(ntoskrnl);
WINE_DECLARE_DEBUG_CHANNEL(relay);
KSYSTEM_TIME KeTickCount;
typedef struct _KSERVICE_TABLE_DESCRIPTOR
{
PULONG_PTR Base;
PULONG Count;
ULONG Limit;
PUCHAR Number;
} KSERVICE_TABLE_DESCRIPTOR, *PKSERVICE_TABLE_DESCRIPTOR;
KSERVICE_TABLE_DESCRIPTOR KeServiceDescriptorTable[4];
typedef void (WINAPI *PCREATE_PROCESS_NOTIFY_ROUTINE)(HANDLE,HANDLE,BOOLEAN);
#ifdef __i386__
#define DEFINE_FASTCALL1_ENTRYPOINT( name ) \
__ASM_GLOBAL_FUNC( name, \
"popl %eax\n\t" \
"pushl %ecx\n\t" \
"pushl %eax\n\t" \
"jmp " __ASM_NAME("__regs_") #name )
#define DEFINE_FASTCALL2_ENTRYPOINT( name ) \
__ASM_GLOBAL_FUNC( name, \
"popl %eax\n\t" \
"pushl %edx\n\t" \
"pushl %ecx\n\t" \
"pushl %eax\n\t" \
"jmp " __ASM_NAME("__regs_") #name )
#endif
static inline LPCSTR debugstr_us( const UNICODE_STRING *us )
{
if (!us) return "<null>";
return debugstr_wn( us->Buffer, us->Length / sizeof(WCHAR) );
}
static HANDLE get_device_manager(void)
{
static HANDLE device_manager;
HANDLE handle = 0, ret = device_manager;
if (!ret)
{
SERVER_START_REQ( create_device_manager )
{
req->access = SYNCHRONIZE;
req->attributes = 0;
if (!wine_server_call( req )) handle = reply->handle;
}
SERVER_END_REQ;
if (!handle)
{
ERR( "failed to create the device manager\n" );
return 0;
}
if (!(ret = InterlockedCompareExchangePointer( &device_manager, handle, 0 )))
ret = handle;
else
NtClose( handle ); /* somebody beat us to it */
}
return ret;
}
/* exception handler for emulation of privileged instructions */
static LONG CALLBACK vectored_handler( EXCEPTION_POINTERS *ptrs )
{
extern DWORD __wine_emulate_instruction( EXCEPTION_RECORD *rec, CONTEXT86 *context );
EXCEPTION_RECORD *record = ptrs->ExceptionRecord;
CONTEXT86 *context = ptrs->ContextRecord;
if (record->ExceptionCode == EXCEPTION_ACCESS_VIOLATION ||
record->ExceptionCode == EXCEPTION_PRIV_INSTRUCTION)
{
if (__wine_emulate_instruction( record, context ) == ExceptionContinueExecution)
return EXCEPTION_CONTINUE_EXECUTION;
}
return EXCEPTION_CONTINUE_SEARCH;
}
/* process an ioctl request for a given device */
static NTSTATUS process_ioctl( DEVICE_OBJECT *device, ULONG code, void *in_buff, ULONG in_size,
void *out_buff, ULONG *out_size )
{
IRP irp;
MDL mdl;
IO_STACK_LOCATION irpsp;
PDRIVER_DISPATCH dispatch = device->DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL];
NTSTATUS status;
LARGE_INTEGER count;
TRACE( "ioctl %x device %p in_size %u out_size %u\n", code, device, in_size, *out_size );
/* so we can spot things that we should initialize */
memset( &irp, 0x55, sizeof(irp) );
memset( &irpsp, 0x66, sizeof(irpsp) );
memset( &mdl, 0x77, sizeof(mdl) );
irp.RequestorMode = UserMode;
irp.AssociatedIrp.SystemBuffer = in_buff;
irp.UserBuffer = out_buff;
irp.MdlAddress = &mdl;
irp.Tail.Overlay.s.u.CurrentStackLocation = &irpsp;
irpsp.MajorFunction = IRP_MJ_DEVICE_CONTROL;
irpsp.Parameters.DeviceIoControl.OutputBufferLength = *out_size;
irpsp.Parameters.DeviceIoControl.InputBufferLength = in_size;
irpsp.Parameters.DeviceIoControl.IoControlCode = code;
irpsp.Parameters.DeviceIoControl.Type3InputBuffer = in_buff;
irpsp.DeviceObject = device;
mdl.Next = NULL;
mdl.Size = 0;
mdl.StartVa = out_buff;
mdl.ByteCount = *out_size;
mdl.ByteOffset = 0;
device->CurrentIrp = &irp;
KeQueryTickCount( &count ); /* update the global KeTickCount */
if (TRACE_ON(relay))
DPRINTF( "%04x:Call driver dispatch %p (device=%p,irp=%p)\n",
GetCurrentThreadId(), dispatch, device, &irp );
status = dispatch( device, &irp );
if (TRACE_ON(relay))
DPRINTF( "%04x:Ret driver dispatch %p (device=%p,irp=%p) retval=%08x\n",
GetCurrentThreadId(), dispatch, device, &irp, status );
*out_size = irp.IoStatus.u.Status ? 0 : irp.IoStatus.Information;
return irp.IoStatus.u.Status;
}
/***********************************************************************
* wine_ntoskrnl_main_loop (Not a Windows API)
*/
NTSTATUS wine_ntoskrnl_main_loop( HANDLE stop_event )
{
HANDLE manager = get_device_manager();
HANDLE ioctl = 0;
NTSTATUS status = STATUS_SUCCESS;
ULONG code = 0;
void *in_buff, *out_buff = NULL;
DEVICE_OBJECT *device = NULL;
ULONG in_size = 4096, out_size = 0;
HANDLE handles[2];
if (!(in_buff = HeapAlloc( GetProcessHeap(), 0, in_size )))
{
ERR( "failed to allocate buffer\n" );
return STATUS_NO_MEMORY;
}
handles[0] = stop_event;
handles[1] = manager;
for (;;)
{
SERVER_START_REQ( get_next_device_request )
{
req->manager = manager;
req->prev = ioctl;
req->status = status;
wine_server_add_data( req, out_buff, out_size );
wine_server_set_reply( req, in_buff, in_size );
if (!(status = wine_server_call( req )))
{
code = reply->code;
ioctl = reply->next;
device = reply->user_ptr;
in_size = reply->in_size;
out_size = reply->out_size;
}
else
{
ioctl = 0; /* no previous ioctl */
out_size = 0;
in_size = reply->in_size;
}
}
SERVER_END_REQ;
switch(status)
{
case STATUS_SUCCESS:
HeapFree( GetProcessHeap(), 0, out_buff );
if (out_size) out_buff = HeapAlloc( GetProcessHeap(), 0, out_size );
else out_buff = NULL;
status = process_ioctl( device, code, in_buff, in_size, out_buff, &out_size );
break;
case STATUS_BUFFER_OVERFLOW:
HeapFree( GetProcessHeap(), 0, in_buff );
in_buff = HeapAlloc( GetProcessHeap(), 0, in_size );
/* restart with larger buffer */
break;
case STATUS_PENDING:
if (WaitForMultipleObjects( 2, handles, FALSE, INFINITE ) == WAIT_OBJECT_0)
return STATUS_SUCCESS;
break;
}
}
}
/***********************************************************************
* IoCreateDevice (NTOSKRNL.EXE.@)
*/
NTSTATUS WINAPI IoCreateDevice( DRIVER_OBJECT *driver, ULONG ext_size,
UNICODE_STRING *name, DEVICE_TYPE type,
ULONG characteristics, BOOLEAN exclusive,
DEVICE_OBJECT **ret_device )
{
NTSTATUS status;
DEVICE_OBJECT *device;
HANDLE handle = 0;
HANDLE manager = get_device_manager();
TRACE( "(%p, %u, %s, %u, %x, %u, %p)\n",
driver, ext_size, debugstr_us(name), type, characteristics, exclusive, ret_device );
if (!(device = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*device) + ext_size )))
return STATUS_NO_MEMORY;
SERVER_START_REQ( create_device )
{
req->access = 0;
req->attributes = 0;
req->rootdir = 0;
req->manager = manager;
req->user_ptr = device;
if (name) wine_server_add_data( req, name->Buffer, name->Length );
if (!(status = wine_server_call( req ))) handle = reply->handle;
}
SERVER_END_REQ;
if (status == STATUS_SUCCESS)
{
device->DriverObject = driver;
device->DeviceExtension = device + 1;
device->DeviceType = type;
device->Reserved = handle;
device->NextDevice = driver->DeviceObject;
driver->DeviceObject = device;
*ret_device = device;
}
else HeapFree( GetProcessHeap(), 0, device );
return status;
}
/***********************************************************************
* IoDeleteDevice (NTOSKRNL.EXE.@)
*/
void WINAPI IoDeleteDevice( DEVICE_OBJECT *device )
{
NTSTATUS status;
TRACE( "%p\n", device );
SERVER_START_REQ( delete_device )
{
req->handle = device->Reserved;
status = wine_server_call( req );
}
SERVER_END_REQ;
if (status == STATUS_SUCCESS)
{
DEVICE_OBJECT **prev = &device->DriverObject->DeviceObject;
while (*prev && *prev != device) prev = &(*prev)->NextDevice;
if (*prev) *prev = (*prev)->NextDevice;
NtClose( device->Reserved );
HeapFree( GetProcessHeap(), 0, device );
}
}
/***********************************************************************
* IoCreateSymbolicLink (NTOSKRNL.EXE.@)
*/
NTSTATUS WINAPI IoCreateSymbolicLink( UNICODE_STRING *name, UNICODE_STRING *target )
{
HANDLE handle;
OBJECT_ATTRIBUTES attr;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = name;
attr.Attributes = OBJ_CASE_INSENSITIVE | OBJ_OPENIF;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
TRACE( "%s -> %s\n", debugstr_us(name), debugstr_us(target) );
/* FIXME: store handle somewhere */
return NtCreateSymbolicLinkObject( &handle, SYMBOLIC_LINK_ALL_ACCESS, &attr, target );
}
/***********************************************************************
* IofCompleteRequest (NTOSKRNL.EXE.@)
*/
#ifdef DEFINE_FASTCALL2_ENTRYPOINT
DEFINE_FASTCALL2_ENTRYPOINT( IofCompleteRequest )
void WINAPI __regs_IofCompleteRequest( IRP *irp, UCHAR priority_boost )
#else
void WINAPI IofCompleteRequest( IRP *irp, UCHAR priority_boost )
#endif
{
TRACE( "%p %u\n", irp, priority_boost );
/* nothing to do for now */
}
/***********************************************************************
* ExAllocatePool (NTOSKRNL.EXE.@)
*/
PVOID WINAPI ExAllocatePool( POOL_TYPE type, SIZE_T size )
{
return ExAllocatePoolWithTag( type, size, 0 );
}
/***********************************************************************
* ExAllocatePoolWithQuota (NTOSKRNL.EXE.@)
*/
PVOID WINAPI ExAllocatePoolWithQuota( POOL_TYPE type, SIZE_T size )
{
return ExAllocatePoolWithTag( type, size, 0 );
}
/***********************************************************************
* ExAllocatePoolWithTag (NTOSKRNL.EXE.@)
*/
PVOID WINAPI ExAllocatePoolWithTag( POOL_TYPE type, SIZE_T size, ULONG tag )
{
/* FIXME: handle page alignment constraints */
void *ret = HeapAlloc( GetProcessHeap(), 0, size );
TRACE( "%lu pool %u -> %p\n", size, type, ret );
return ret;
}
/***********************************************************************
* ExAllocatePoolWithQuotaTag (NTOSKRNL.EXE.@)
*/
PVOID WINAPI ExAllocatePoolWithQuotaTag( POOL_TYPE type, SIZE_T size, ULONG tag )
{
return ExAllocatePoolWithTag( type, size, tag );
}
/***********************************************************************
* ExFreePool (NTOSKRNL.EXE.@)
*/
void WINAPI ExFreePool( void *ptr )
{
ExFreePoolWithTag( ptr, 0 );
}
/***********************************************************************
* ExFreePoolWithTag (NTOSKRNL.EXE.@)
*/
void WINAPI ExFreePoolWithTag( void *ptr, ULONG tag )
{
TRACE( "%p\n", ptr );
HeapFree( GetProcessHeap(), 0, ptr );
}
/***********************************************************************
* KeInitializeTimer (NTOSKRNL.EXE.@)
*/
void WINAPI KeInitializeTimer( PKTIMER Timer )
{
FIXME("%p\n", Timer);
}
/***********************************************************************
* KeQuerySystemTime (NTOSKRNL.EXE.@)
*/
void WINAPI KeQuerySystemTime( LARGE_INTEGER *time )
{
NtQuerySystemTime( time );
}
/***********************************************************************
* KeQueryTickCount (NTOSKRNL.EXE.@)
*/
void WINAPI KeQueryTickCount( LARGE_INTEGER *count )
{
count->QuadPart = NtGetTickCount();
/* update the global variable too */
KeTickCount.LowPart = count->u.LowPart;
KeTickCount.High1Time = count->u.HighPart;
KeTickCount.High2Time = count->u.HighPart;
}
/***********************************************************************
* KeQueryTimeIncrement (NTOSKRNL.EXE.@)
*/
ULONG WINAPI KeQueryTimeIncrement(void)
{
return 10000;
}
/***********************************************************************
* MmAllocateNonCachedMemory (NTOSKRNL.EXE.@)
*/
PVOID WINAPI MmAllocateNonCachedMemory( SIZE_T size )
{
TRACE( "%lu\n", size );
return VirtualAlloc( NULL, size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE|PAGE_NOCACHE );
}
/***********************************************************************
* MmFreeNonCachedMemory (NTOSKRNL.EXE.@)
*/
void WINAPI MmFreeNonCachedMemory( void *addr, SIZE_T size )
{
TRACE( "%p %lu\n", addr, size );
VirtualFree( addr, 0, MEM_RELEASE );
}
/***********************************************************************
* PsGetCurrentProcessId (NTOSKRNL.EXE.@)
*/
HANDLE WINAPI PsGetCurrentProcessId(void)
{
return (HANDLE)GetCurrentProcessId(); /* FIXME: not quite right... */
}
/***********************************************************************
* PsGetCurrentThreadId (NTOSKRNL.EXE.@)
*/
HANDLE WINAPI PsGetCurrentThreadId(void)
{
return (HANDLE)GetCurrentThreadId(); /* FIXME: not quite right... */
}
/***********************************************************************
* PsGetVersion (NTOSKRNL.EXE.@)
*/
BOOLEAN WINAPI PsGetVersion(ULONG *major, ULONG *minor, ULONG *build, UNICODE_STRING *version )
{
RTL_OSVERSIONINFOEXW info;
RtlGetVersion( &info );
if (major) *major = info.dwMajorVersion;
if (minor) *minor = info.dwMinorVersion;
if (build) *build = info.dwBuildNumber;
if (version)
{
#if 0 /* FIXME: GameGuard passes an uninitialized pointer in version->Buffer */
size_t len = min( strlenW(info.szCSDVersion)*sizeof(WCHAR), version->MaximumLength );
memcpy( version->Buffer, info.szCSDVersion, len );
if (len < version->MaximumLength) version->Buffer[len / sizeof(WCHAR)] = 0;
version->Length = len;
#endif
}
return TRUE;
}
/***********************************************************************
* PsSetCreateProcessNotifyRoutine (NTOSKRNL.EXE.@)
*/
NTSTATUS WINAPI PsSetCreateProcessNotifyRoutine( PCREATE_PROCESS_NOTIFY_ROUTINE callback, BOOLEAN remove )
{
FIXME( "stub: %p %d\n", callback, remove );
return STATUS_SUCCESS;
}
/*****************************************************
* DllMain
*/
BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
{
LARGE_INTEGER count;
switch(reason)
{
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls( inst );
RtlAddVectoredExceptionHandler( TRUE, vectored_handler );
KeQueryTickCount( &count ); /* initialize the global KeTickCount */
break;
}
return TRUE;
}