dlls/ntoskrnl.exe/ntoskrnl.c

   1 /*
   2  * ntoskrnl.exe implementation
   3  *
   4  * Copyright (C) 2007 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdarg.h>
  25
  26 #define NONAMELESSUNION
  27 #define NONAMELESSSTRUCT
  28
  29 #include "ntstatus.h"
  30 #define WIN32_NO_STATUS
  31 #include "windef.h"
  32 #include "winternl.h"
  33 #include "excpt.h"
  34 #include "ddk/ntddk.h"
  35 #include "wine/unicode.h"
  36 #include "wine/server.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(ntoskrnl);
  40 WINE_DECLARE_DEBUG_CHANNEL(relay);
  41
  42
  43 KSYSTEM_TIME KeTickCount = { 0, 0, 0 };
  44
  45 typedef struct _KSERVICE_TABLE_DESCRIPTOR
  46 {
  47     PULONG_PTR Base;
  48     PULONG Count;
  49     ULONG Limit;
  50     PUCHAR Number;
  51 } KSERVICE_TABLE_DESCRIPTOR, *PKSERVICE_TABLE_DESCRIPTOR;
  52
  53 KSERVICE_TABLE_DESCRIPTOR KeServiceDescriptorTable[4] = { { 0 } };
  54
  55 typedef void (WINAPI *PCREATE_PROCESS_NOTIFY_ROUTINE)(HANDLE,HANDLE,BOOLEAN);
  56
  57 #ifdef __i386__
  58 #define DEFINE_FASTCALL1_ENTRYPOINT( name ) \
  59     __ASM_GLOBAL_FUNC( name, \
  60                        "popl %eax\n\t" \
  61                        "pushl %ecx\n\t" \
  62                        "pushl %eax\n\t" \
  63                        "jmp " __ASM_NAME("__regs_") #name )
  64 #define DEFINE_FASTCALL2_ENTRYPOINT( name ) \
  65     __ASM_GLOBAL_FUNC( name, \
  66                        "popl %eax\n\t" \
  67                        "pushl %edx\n\t" \
  68                        "pushl %ecx\n\t" \
  69                        "pushl %eax\n\t" \
  70                        "jmp " __ASM_NAME("__regs_") #name )
  71 #endif
  72
  73 static inline LPCSTR debugstr_us( const UNICODE_STRING *us )
  74 {
  75     if (!us) return "<null>";
  76     return debugstr_wn( us->Buffer, us->Length / sizeof(WCHAR) );
  77 }
  78
  79 static HANDLE get_device_manager(void)
  80 {
  81     static HANDLE device_manager;
  82     HANDLE handle = 0, ret = device_manager;
  83
  84     if (!ret)
  85     {
  86         SERVER_START_REQ( create_device_manager )
  87         {
  88             req->access     = SYNCHRONIZE;
  89             req->attributes = 0;
  90             if (!wine_server_call( req )) handle = reply->handle;
  91         }
  92         SERVER_END_REQ;
  93
  94         if (!handle)
  95         {
  96             ERR( "failed to create the device manager\n" );
  97             return 0;
  98         }
  99         if (!(ret = InterlockedCompareExchangePointer( &device_manager, handle, 0 )))
 100             ret = handle;
 101         else
 102             NtClose( handle );  /* somebody beat us to it */
 103     }
 104     return ret;
 105 }
 106
 107 /* exception handler for emulation of privileged instructions */
 108 static LONG CALLBACK vectored_handler( EXCEPTION_POINTERS *ptrs )
 109 {
 110     extern DWORD __wine_emulate_instruction( EXCEPTION_RECORD *rec, CONTEXT86 *context );
 111
 112     EXCEPTION_RECORD *record = ptrs->ExceptionRecord;
 113     CONTEXT86 *context = ptrs->ContextRecord;
 114
 115     if (record->ExceptionCode == EXCEPTION_ACCESS_VIOLATION ||
 116         record->ExceptionCode == EXCEPTION_PRIV_INSTRUCTION)
 117     {
 118         if (__wine_emulate_instruction( record, context ) == ExceptionContinueExecution)
 119             return EXCEPTION_CONTINUE_EXECUTION;
 120     }
 121     return EXCEPTION_CONTINUE_SEARCH;
 122 }
 123
 124 /* process an ioctl request for a given device */
 125 static NTSTATUS process_ioctl( DEVICE_OBJECT *device, ULONG code, void *in_buff, ULONG in_size,
 126                                void *out_buff, ULONG *out_size )
 127 {
 128     IRP irp;
 129     MDL mdl;
 130     IO_STACK_LOCATION irpsp;
 131     PDRIVER_DISPATCH dispatch = device->DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL];
 132     NTSTATUS status;
 133     LARGE_INTEGER count;
 134
 135     TRACE( "ioctl %x device %p in_size %u out_size %u\n", code, device, in_size, *out_size );
 136
 137     /* so we can spot things that we should initialize */
 138     memset( &irp, 0x55, sizeof(irp) );
 139     memset( &irpsp, 0x66, sizeof(irpsp) );
 140     memset( &mdl, 0x77, sizeof(mdl) );
 141
 142     irp.RequestorMode = UserMode;
 143     irp.AssociatedIrp.SystemBuffer = in_buff;
 144     irp.UserBuffer = out_buff;
 145     irp.MdlAddress = &mdl;
 146     irp.Tail.Overlay.s.u.CurrentStackLocation = &irpsp;
 147
 148     irpsp.MajorFunction = IRP_MJ_DEVICE_CONTROL;
 149     irpsp.Parameters.DeviceIoControl.OutputBufferLength = *out_size;
 150     irpsp.Parameters.DeviceIoControl.InputBufferLength = in_size;
 151     irpsp.Parameters.DeviceIoControl.IoControlCode = code;
 152     irpsp.Parameters.DeviceIoControl.Type3InputBuffer = in_buff;
 153     irpsp.DeviceObject = device;
 154
 155     mdl.Next = NULL;
 156     mdl.Size = 0;
 157     mdl.StartVa = out_buff;
 158     mdl.ByteCount = *out_size;
 159     mdl.ByteOffset = 0;
 160
 161     device->CurrentIrp = &irp;
 162
 163     KeQueryTickCount( &count );  /* update the global KeTickCount */
 164
 165     if (TRACE_ON(relay))
 166         DPRINTF( "%04x:Call driver dispatch %p (device=%p,irp=%p)\n",
 167                  GetCurrentThreadId(), dispatch, device, &irp );
 168
 169     status = dispatch( device, &irp );
 170
 171     if (TRACE_ON(relay))
 172         DPRINTF( "%04x:Ret  driver dispatch %p (device=%p,irp=%p) retval=%08x\n",
 173                  GetCurrentThreadId(), dispatch, device, &irp, status );
 174
 175     *out_size = (irp.IoStatus.u.Status >= 0) ? irp.IoStatus.Information : 0;
 176     return irp.IoStatus.u.Status;
 177 }
 178
 179
 180 /***********************************************************************
 181  *           wine_ntoskrnl_main_loop   (Not a Windows API)
 182  */
 183 NTSTATUS wine_ntoskrnl_main_loop( HANDLE stop_event )
 184 {
 185     HANDLE manager = get_device_manager();
 186     HANDLE ioctl = 0;
 187     NTSTATUS status = STATUS_SUCCESS;
 188     ULONG code = 0;
 189     void *in_buff, *out_buff = NULL;
 190     DEVICE_OBJECT *device = NULL;
 191     ULONG in_size = 4096, out_size = 0;
 192     HANDLE handles[2];
 193
 194     if (!(in_buff = HeapAlloc( GetProcessHeap(), 0, in_size )))
 195     {
 196         ERR( "failed to allocate buffer\n" );
 197         return STATUS_NO_MEMORY;
 198     }
 199
 200     handles[0] = stop_event;
 201     handles[1] = manager;
 202
 203     for (;;)
 204     {
 205         SERVER_START_REQ( get_next_device_request )
 206         {
 207             req->manager = manager;
 208             req->prev = ioctl;
 209             req->status = status;
 210             wine_server_add_data( req, out_buff, out_size );
 211             wine_server_set_reply( req, in_buff, in_size );
 212             if (!(status = wine_server_call( req )))
 213             {
 214                 code     = reply->code;
 215                 ioctl    = reply->next;
 216                 device   = reply->user_ptr;
 217                 in_size  = reply->in_size;
 218                 out_size = reply->out_size;
 219             }
 220             else
 221             {
 222                 ioctl = 0; /* no previous ioctl */
 223                 out_size = 0;
 224                 in_size = reply->in_size;
 225             }
 226         }
 227         SERVER_END_REQ;
 228
 229         switch(status)
 230         {
 231         case STATUS_SUCCESS:
 232             HeapFree( GetProcessHeap(), 0, out_buff );
 233             if (out_size) out_buff = HeapAlloc( GetProcessHeap(), 0, out_size );
 234             else out_buff = NULL;
 235             status = process_ioctl( device, code, in_buff, in_size, out_buff, &out_size );
 236             break;
 237         case STATUS_BUFFER_OVERFLOW:
 238             HeapFree( GetProcessHeap(), 0, in_buff );
 239             in_buff = HeapAlloc( GetProcessHeap(), 0, in_size );
 240             /* restart with larger buffer */
 241             break;
 242         case STATUS_PENDING:
 243             if (WaitForMultipleObjects( 2, handles, FALSE, INFINITE ) == WAIT_OBJECT_0)
 244                 return STATUS_SUCCESS;
 245             break;
 246         }
 247     }
 248 }
 249
 250
 251 /***********************************************************************
 252  *           IoInitializeIrp  (NTOSKRNL.EXE.@)
 253  */
 254 void WINAPI IoInitializeIrp( IRP *irp, USHORT size, CCHAR stack_size )
 255 {
 256     FIXME( "%p, %u, %d\n", irp, size, stack_size );
 257 }
 258
 259
 260 /***********************************************************************
 261  *           IoAllocateIrp  (NTOSKRNL.EXE.@)
 262  */
 263 PIRP WINAPI IoAllocateIrp( CCHAR stack_size, BOOLEAN charge_quota )
 264 {
 265     FIXME( "%d, %d\n", stack_size, charge_quota );
 266     return NULL;
 267 }
 268
 269
 270 /***********************************************************************
 271  *           IoFreeIrp  (NTOSKRNL.EXE.@)
 272  */
 273 void WINAPI IoFreeIrp( IRP *irp )
 274 {
 275     FIXME( "%p\n", irp );
 276 }
 277
 278
 279 /***********************************************************************
 280  *           IoAllocateMdl  (NTOSKRNL.EXE.@)
 281  */
 282 PMDL WINAPI IoAllocateMdl( PVOID VirtualAddress, ULONG Length, BOOLEAN SecondaryBuffer, BOOLEAN ChargeQuota, PIRP Irp )
 283 {
 284     FIXME( "stub: %p, %u, %i, %i, %p\n", VirtualAddress, Length, SecondaryBuffer, ChargeQuota, Irp );
 285     return NULL;
 286 }
 287
 288
 289 /***********************************************************************
 290  *           IoAllocateWorkItem  (NTOSKRNL.EXE.@)
 291  */
 292 PIO_WORKITEM WINAPI IoAllocateWorkItem( PDEVICE_OBJECT DeviceObject )
 293 {
 294     FIXME( "stub: %p\n", DeviceObject );
 295     return NULL;
 296 }
 297
 298
 299 /***********************************************************************
 300  *           IoCreateDriver   (NTOSKRNL.EXE.@)
 301  */
 302 NTSTATUS WINAPI IoCreateDriver( UNICODE_STRING *name, PDRIVER_INITIALIZE init )
 303 {
 304     DRIVER_OBJECT *driver;
 305     DRIVER_EXTENSION *extension;
 306     NTSTATUS status;
 307
 308     if (!(driver = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY,
 309                                     sizeof(*driver) + sizeof(*extension) )))
 310         return STATUS_NO_MEMORY;
 311
 312     if ((status = RtlDuplicateUnicodeString( 1, name, &driver->DriverName )))
 313     {
 314         RtlFreeHeap( GetProcessHeap(), 0, driver );
 315         return status;
 316     }
 317
 318     extension = (DRIVER_EXTENSION *)(driver + 1);
 319     driver->Size            = sizeof(*driver);
 320     driver->DriverInit      = init;
 321     driver->DriverExtension = extension;
 322     extension->DriverObject   = driver;
 323     extension->ServiceKeyName = driver->DriverName;
 324
 325     status = driver->DriverInit( driver, name );
 326
 327     if (status)
 328     {
 329         RtlFreeUnicodeString( &driver->DriverName );
 330         RtlFreeHeap( GetProcessHeap(), 0, driver );
 331     }
 332     return status;
 333 }
 334
 335
 336 /***********************************************************************
 337  *           IoDeleteDriver   (NTOSKRNL.EXE.@)
 338  */
 339 void WINAPI IoDeleteDriver( DRIVER_OBJECT *driver )
 340 {
 341     RtlFreeUnicodeString( &driver->DriverName );
 342     RtlFreeHeap( GetProcessHeap(), 0, driver );
 343 }
 344
 345
 346 /***********************************************************************
 347  *           IoCreateDevice   (NTOSKRNL.EXE.@)
 348  */
 349 NTSTATUS WINAPI IoCreateDevice( DRIVER_OBJECT *driver, ULONG ext_size,
 350                                 UNICODE_STRING *name, DEVICE_TYPE type,
 351                                 ULONG characteristics, BOOLEAN exclusive,
 352                                 DEVICE_OBJECT **ret_device )
 353 {
 354     NTSTATUS status;
 355     DEVICE_OBJECT *device;
 356     HANDLE handle = 0;
 357     HANDLE manager = get_device_manager();
 358
 359     TRACE( "(%p, %u, %s, %u, %x, %u, %p)\n",
 360            driver, ext_size, debugstr_us(name), type, characteristics, exclusive, ret_device );
 361
 362     if (!(device = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*device) + ext_size )))
 363         return STATUS_NO_MEMORY;
 364
 365     SERVER_START_REQ( create_device )
 366     {
 367         req->access     = 0;
 368         req->attributes = 0;
 369         req->rootdir    = 0;
 370         req->manager    = manager;
 371         req->user_ptr   = device;
 372         if (name) wine_server_add_data( req, name->Buffer, name->Length );
 373         if (!(status = wine_server_call( req ))) handle = reply->handle;
 374     }
 375     SERVER_END_REQ;
 376
 377     if (status == STATUS_SUCCESS)
 378     {
 379         device->DriverObject    = driver;
 380         device->DeviceExtension = device + 1;
 381         device->DeviceType      = type;
 382         device->Reserved        = handle;
 383
 384         device->NextDevice   = driver->DeviceObject;
 385         driver->DeviceObject = device;
 386
 387         *ret_device = device;
 388     }
 389     else HeapFree( GetProcessHeap(), 0, device );
 390
 391     return status;
 392 }
 393
 394
 395 /***********************************************************************
 396  *           IoDeleteDevice   (NTOSKRNL.EXE.@)
 397  */
 398 void WINAPI IoDeleteDevice( DEVICE_OBJECT *device )
 399 {
 400     NTSTATUS status;
 401
 402     TRACE( "%p\n", device );
 403
 404     SERVER_START_REQ( delete_device )
 405     {
 406         req->handle = device->Reserved;
 407         status = wine_server_call( req );
 408     }
 409     SERVER_END_REQ;
 410
 411     if (status == STATUS_SUCCESS)
 412     {
 413         DEVICE_OBJECT **prev = &device->DriverObject->DeviceObject;
 414         while (*prev && *prev != device) prev = &(*prev)->NextDevice;
 415         if (*prev) *prev = (*prev)->NextDevice;
 416         NtClose( device->Reserved );
 417         HeapFree( GetProcessHeap(), 0, device );
 418     }
 419 }
 420
 421
 422 /***********************************************************************
 423  *           IoCreateSymbolicLink   (NTOSKRNL.EXE.@)
 424  */
 425 NTSTATUS WINAPI IoCreateSymbolicLink( UNICODE_STRING *name, UNICODE_STRING *target )
 426 {
 427     HANDLE handle;
 428     OBJECT_ATTRIBUTES attr;
 429
 430     attr.Length                   = sizeof(attr);
 431     attr.RootDirectory            = 0;
 432     attr.ObjectName               = name;
 433     attr.Attributes               = OBJ_CASE_INSENSITIVE | OBJ_OPENIF;
 434     attr.SecurityDescriptor       = NULL;
 435     attr.SecurityQualityOfService = NULL;
 436
 437     TRACE( "%s -> %s\n", debugstr_us(name), debugstr_us(target) );
 438     /* FIXME: store handle somewhere */
 439     return NtCreateSymbolicLinkObject( &handle, SYMBOLIC_LINK_ALL_ACCESS, &attr, target );
 440 }
 441
 442
 443 /***********************************************************************
 444  *           IoDeleteSymbolicLink   (NTOSKRNL.EXE.@)
 445  */
 446 NTSTATUS WINAPI IoDeleteSymbolicLink( UNICODE_STRING *name )
 447 {
 448     FIXME( "%s\n", debugstr_us(name) );
 449     return STATUS_SUCCESS;
 450 }
 451
 452
 453 /***********************************************************************
 454  *           IoGetDeviceObjectPointer   (NTOSKRNL.EXE.@)
 455  */
 456 NTSTATUS  WINAPI IoGetDeviceObjectPointer( UNICODE_STRING *name, ACCESS_MASK access, PFILE_OBJECT *file, PDEVICE_OBJECT *device )
 457 {
 458     FIXME( "stub: %s %x %p %p\n", debugstr_us(name), access, file, device );
 459     return STATUS_NOT_IMPLEMENTED;
 460 }
 461
 462
 463 /***********************************************************************
 464  *           IoGetRelatedDeviceObject    (NTOSKRNL.EXE.@)
 465  */
 466 PDEVICE_OBJECT WINAPI IoGetRelatedDeviceObject( PFILE_OBJECT obj )
 467 {
 468     FIXME( "stub: %p\n", obj );
 469     return NULL;
 470 }
 471
 472
 473 /***********************************************************************
 474  *           IoRegisterDriverReinitialization    (NTOSKRNL.EXE.@)
 475  */
 476 void WINAPI IoRegisterDriverReinitialization( PDRIVER_OBJECT obj, PDRIVER_REINITIALIZE reinit, PVOID context )
 477 {
 478     FIXME( "stub: %p %p %p\n", obj, reinit, context );
 479 }
 480
 481
 482 /***********************************************************************
 483  *           IoRegisterShutdownNotification    (NTOSKRNL.EXE.@)
 484  */
 485 NTSTATUS WINAPI IoRegisterShutdownNotification( PDEVICE_OBJECT obj )
 486 {
 487     FIXME( "stub: %p\n", obj );
 488     return STATUS_SUCCESS;
 489 }
 490
 491
 492 /***********************************************************************
 493  *           IofCompleteRequest   (NTOSKRNL.EXE.@)
 494  */
 495 #ifdef DEFINE_FASTCALL2_ENTRYPOINT
 496 DEFINE_FASTCALL2_ENTRYPOINT( IofCompleteRequest )
 497 void WINAPI __regs_IofCompleteRequest( IRP *irp, UCHAR priority_boost )
 498 #else
 499 void WINAPI IofCompleteRequest( IRP *irp, UCHAR priority_boost )
 500 #endif
 501 {
 502     TRACE( "%p %u\n", irp, priority_boost );
 503     /* nothing to do for now */
 504 }
 505
 506
 507 /***********************************************************************
 508  *           InterlockedCompareExchange   (NTOSKRNL.EXE.@)
 509  */
 510 #ifdef DEFINE_FASTCALL2_ENTRYPOINT
 511 DEFINE_FASTCALL2_ENTRYPOINT( NTOSKRNL_InterlockedCompareExchange )
 512 LONG WINAPI __regs_NTOSKRNL_InterlockedCompareExchange( LONG volatile *dest, LONG xchg, LONG compare )
 513 #else
 514 LONG WINAPI NTOSKRNL_InterlockedCompareExchange( LONG volatile *dest, LONG xchg, LONG compare )
 515 #endif
 516 {
 517     return InterlockedCompareExchange( dest, xchg, compare );
 518 }
 519
 520
 521 /***********************************************************************
 522  *           InterlockedDecrement   (NTOSKRNL.EXE.@)
 523  */
 524 #ifdef DEFINE_FASTCALL1_ENTRYPOINT
 525 DEFINE_FASTCALL1_ENTRYPOINT( NTOSKRNL_InterlockedDecrement )
 526 LONG WINAPI __regs_NTOSKRNL_InterlockedDecrement( LONG volatile *dest )
 527 #else
 528 LONG WINAPI NTOSKRNL_InterlockedDecrement( LONG volatile *dest )
 529 #endif
 530 {
 531     return InterlockedDecrement( dest );
 532 }
 533
 534
 535 /***********************************************************************
 536  *           InterlockedExchange   (NTOSKRNL.EXE.@)
 537  */
 538 #ifdef DEFINE_FASTCALL2_ENTRYPOINT
 539 DEFINE_FASTCALL2_ENTRYPOINT( NTOSKRNL_InterlockedExchange )
 540 LONG WINAPI __regs_NTOSKRNL_InterlockedExchange( LONG volatile *dest, LONG val )
 541 #else
 542 LONG WINAPI NTOSKRNL_InterlockedExchange( LONG volatile *dest, LONG val )
 543 #endif
 544 {
 545     return InterlockedExchange( dest, val );
 546 }
 547
 548
 549 /***********************************************************************
 550  *           InterlockedExchangeAdd   (NTOSKRNL.EXE.@)
 551  */
 552 #ifdef DEFINE_FASTCALL2_ENTRYPOINT
 553 DEFINE_FASTCALL2_ENTRYPOINT( NTOSKRNL_InterlockedExchangeAdd )
 554 LONG WINAPI __regs_NTOSKRNL_InterlockedExchangeAdd( LONG volatile *dest, LONG incr )
 555 #else
 556 LONG WINAPI NTOSKRNL_InterlockedExchangeAdd( LONG volatile *dest, LONG incr )
 557 #endif
 558 {
 559     return InterlockedExchangeAdd( dest, incr );
 560 }
 561
 562
 563 /***********************************************************************
 564  *           InterlockedIncrement   (NTOSKRNL.EXE.@)
 565  */
 566 #ifdef DEFINE_FASTCALL1_ENTRYPOINT
 567 DEFINE_FASTCALL1_ENTRYPOINT( NTOSKRNL_InterlockedIncrement )
 568 LONG WINAPI __regs_NTOSKRNL_InterlockedIncrement( LONG volatile *dest )
 569 #else
 570 LONG WINAPI NTOSKRNL_InterlockedIncrement( LONG volatile *dest )
 571 #endif
 572 {
 573     return InterlockedIncrement( dest );
 574 }
 575
 576
 577 /***********************************************************************
 578  *           ExAllocatePool   (NTOSKRNL.EXE.@)
 579  */
 580 PVOID WINAPI ExAllocatePool( POOL_TYPE type, SIZE_T size )
 581 {
 582     return ExAllocatePoolWithTag( type, size, 0 );
 583 }
 584
 585
 586 /***********************************************************************
 587  *           ExAllocatePoolWithQuota   (NTOSKRNL.EXE.@)
 588  */
 589 PVOID WINAPI ExAllocatePoolWithQuota( POOL_TYPE type, SIZE_T size )
 590 {
 591     return ExAllocatePoolWithTag( type, size, 0 );
 592 }
 593
 594
 595 /***********************************************************************
 596  *           ExAllocatePoolWithTag   (NTOSKRNL.EXE.@)
 597  */
 598 PVOID WINAPI ExAllocatePoolWithTag( POOL_TYPE type, SIZE_T size, ULONG tag )
 599 {
 600     /* FIXME: handle page alignment constraints */
 601     void *ret = HeapAlloc( GetProcessHeap(), 0, size );
 602     TRACE( "%lu pool %u -> %p\n", size, type, ret );
 603     return ret;
 604 }
 605
 606
 607 /***********************************************************************
 608  *           ExAllocatePoolWithQuotaTag   (NTOSKRNL.EXE.@)
 609  */
 610 PVOID WINAPI ExAllocatePoolWithQuotaTag( POOL_TYPE type, SIZE_T size, ULONG tag )
 611 {
 612     return ExAllocatePoolWithTag( type, size, tag );
 613 }
 614
 615
 616 /***********************************************************************
 617  *           ExFreePool   (NTOSKRNL.EXE.@)
 618  */
 619 void WINAPI ExFreePool( void *ptr )
 620 {
 621     ExFreePoolWithTag( ptr, 0 );
 622 }
 623
 624
 625 /***********************************************************************
 626  *           ExFreePoolWithTag   (NTOSKRNL.EXE.@)
 627  */
 628 void WINAPI ExFreePoolWithTag( void *ptr, ULONG tag )
 629 {
 630     TRACE( "%p\n", ptr );
 631     HeapFree( GetProcessHeap(), 0, ptr );
 632 }
 633
 634
 635 /***********************************************************************
 636  *           KeInitializeSpinLock   (NTOSKRNL.EXE.@)
 637  */
 638 void WINAPI KeInitializeSpinLock( PKSPIN_LOCK SpinLock )
 639 {
 640     FIXME("%p\n", SpinLock);
 641 }
 642
 643
 644 /***********************************************************************
 645  *           KeInitializeTimerEx   (NTOSKRNL.EXE.@)
 646  */
 647 void WINAPI KeInitializeTimerEx( PKTIMER Timer, TIMER_TYPE Type )
 648 {
 649     FIXME("%p %d\n", Timer, Type);
 650 }
 651
 652
 653 /***********************************************************************
 654  *           KeInitializeTimer   (NTOSKRNL.EXE.@)
 655  */
 656 void WINAPI KeInitializeTimer( PKTIMER Timer )
 657 {
 658     KeInitializeTimerEx(Timer, NotificationTimer);
 659 }
 660
 661
 662 /**********************************************************************
 663  *           KeQueryActiveProcessors   (NTOSKRNL.EXE.@)
 664  *
 665  * Return the active Processors as bitmask
 666  *
 667  * RETURNS
 668  *   active Processors as bitmask
 669  *
 670  */
 671 KAFFINITY WINAPI KeQueryActiveProcessors( void )
 672 {
 673     DWORD_PTR AffinityMask;
 674
 675     GetProcessAffinityMask( GetCurrentProcess(), &AffinityMask, NULL);
 676     return AffinityMask;
 677 }
 678
 679
 680 /**********************************************************************
 681  *           KeQueryInterruptTime   (NTOSKRNL.EXE.@)
 682  *
 683  * Return the interrupt time count
 684  *
 685  */
 686 ULONGLONG WINAPI KeQueryInterruptTime( void )
 687 {
 688     LARGE_INTEGER totaltime;
 689
 690     KeQueryTickCount(&totaltime);
 691     return totaltime.QuadPart;
 692 }
 693
 694
 695 /***********************************************************************
 696  *           KeQuerySystemTime   (NTOSKRNL.EXE.@)
 697  */
 698 void WINAPI KeQuerySystemTime( LARGE_INTEGER *time )
 699 {
 700     NtQuerySystemTime( time );
 701 }
 702
 703
 704 /***********************************************************************
 705  *           KeQueryTickCount   (NTOSKRNL.EXE.@)
 706  */
 707 void WINAPI KeQueryTickCount( LARGE_INTEGER *count )
 708 {
 709     count->QuadPart = NtGetTickCount();
 710     /* update the global variable too */
 711     KeTickCount.LowPart   = count->u.LowPart;
 712     KeTickCount.High1Time = count->u.HighPart;
 713     KeTickCount.High2Time = count->u.HighPart;
 714 }
 715
 716
 717 /***********************************************************************
 718  *           KeQueryTimeIncrement   (NTOSKRNL.EXE.@)
 719  */
 720 ULONG WINAPI KeQueryTimeIncrement(void)
 721 {
 722     return 10000;
 723 }
 724
 725
 726 /***********************************************************************
 727  *           MmAllocateNonCachedMemory   (NTOSKRNL.EXE.@)
 728  */
 729 PVOID WINAPI MmAllocateNonCachedMemory( SIZE_T size )
 730 {
 731     TRACE( "%lu\n", size );
 732     return VirtualAlloc( NULL, size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE|PAGE_NOCACHE );
 733 }
 734
 735
 736 /***********************************************************************
 737  *           MmFreeNonCachedMemory   (NTOSKRNL.EXE.@)
 738  */
 739 void WINAPI MmFreeNonCachedMemory( void *addr, SIZE_T size )
 740 {
 741     TRACE( "%p %lu\n", addr, size );
 742     VirtualFree( addr, 0, MEM_RELEASE );
 743 }
 744
 745 /***********************************************************************
 746  *           MmIsAddressValid   (NTOSKRNL.EXE.@)
 747  *
 748  * Check if the process can access the virtual address without a pagefault
 749  *
 750  * PARAMS
 751  *  VirtualAddress [I] Address to check
 752  *
 753  * RETURNS
 754  *  Failure: FALSE
 755  *  Success: TRUE  (Accessing the Address works without a Pagefault)
 756  *
 757  */
 758 BOOLEAN WINAPI MmIsAddressValid(PVOID VirtualAddress)
 759 {
 760     TRACE("(%p)\n", VirtualAddress);
 761     return !IsBadWritePtr(VirtualAddress, 1);
 762 }
 763
 764 /***********************************************************************
 765  *           MmPageEntireDriver   (NTOSKRNL.EXE.@)
 766  */
 767 PVOID WINAPI MmPageEntireDriver(PVOID AddrInSection)
 768 {
 769     TRACE("%p\n", AddrInSection);
 770     return AddrInSection;
 771 }
 772
 773 /***********************************************************************
 774  *           MmResetDriverPaging   (NTOSKRNL.EXE.@)
 775  */
 776 void WINAPI MmResetDriverPaging(PVOID AddrInSection)
 777 {
 778     TRACE("%p\n", AddrInSection);
 779 }
 780
 781
 782  /***********************************************************************
 783  *           ObReferenceObjectByHandle    (NTOSKRNL.EXE.@)
 784  */
 785 NTSTATUS WINAPI ObReferenceObjectByHandle( HANDLE obj, ACCESS_MASK access,
 786                                            POBJECT_TYPE type,
 787                                            KPROCESSOR_MODE mode, PVOID* ptr,
 788                                            POBJECT_HANDLE_INFORMATION info)
 789 {
 790     FIXME( "stub: %p %x %p %d %p %p\n", obj, access, type, mode, ptr, info);
 791     return STATUS_NOT_IMPLEMENTED;
 792 }
 793
 794
 795 /***********************************************************************
 796  *           ObfDereferenceObject   (NTOSKRNL.EXE.@)
 797  */
 798 void WINAPI ObfDereferenceObject( VOID *obj )
 799 {
 800     FIXME( "stub: %p\n", obj );
 801 }
 802
 803
 804 /***********************************************************************
 805  *           PsCreateSystemThread   (NTOSKRNL.EXE.@)
 806  */
 807 NTSTATUS WINAPI PsCreateSystemThread(PHANDLE ThreadHandle, ULONG DesiredAccess,
 808                                      POBJECT_ATTRIBUTES ObjectAttributes,
 809                                      HANDLE ProcessHandle, PCLIENT_ID ClientId,
 810                                      PKSTART_ROUTINE StartRoutine, PVOID StartContext)
 811 {
 812     if (!ProcessHandle) ProcessHandle = GetCurrentProcess();
 813     return RtlCreateUserThread(ProcessHandle, 0, FALSE, 0, 0,
 814                                0, StartRoutine, StartContext,
 815                                ThreadHandle, ClientId);
 816 }
 817
 818 /***********************************************************************
 819  *           PsGetCurrentProcessId   (NTOSKRNL.EXE.@)
 820  */
 821 HANDLE WINAPI PsGetCurrentProcessId(void)
 822 {
 823     return (HANDLE)GetCurrentProcessId();  /* FIXME: not quite right... */
 824 }
 825
 826
 827 /***********************************************************************
 828  *           PsGetCurrentThreadId   (NTOSKRNL.EXE.@)
 829  */
 830 HANDLE WINAPI PsGetCurrentThreadId(void)
 831 {
 832     return (HANDLE)GetCurrentThreadId();  /* FIXME: not quite right... */
 833 }
 834
 835
 836 /***********************************************************************
 837  *           PsGetVersion   (NTOSKRNL.EXE.@)
 838  */
 839 BOOLEAN WINAPI PsGetVersion(ULONG *major, ULONG *minor, ULONG *build, UNICODE_STRING *version )
 840 {
 841     RTL_OSVERSIONINFOEXW info;
 842
 843     RtlGetVersion( &info );
 844     if (major) *major = info.dwMajorVersion;
 845     if (minor) *minor = info.dwMinorVersion;
 846     if (build) *build = info.dwBuildNumber;
 847
 848     if (version)
 849     {
 850 #if 0  /* FIXME: GameGuard passes an uninitialized pointer in version->Buffer */
 851         size_t len = min( strlenW(info.szCSDVersion)*sizeof(WCHAR), version->MaximumLength );
 852         memcpy( version->Buffer, info.szCSDVersion, len );
 853         if (len < version->MaximumLength) version->Buffer[len / sizeof(WCHAR)] = 0;
 854         version->Length = len;
 855 #endif
 856     }
 857     return TRUE;
 858 }
 859
 860
 861 /***********************************************************************
 862  *           PsSetCreateProcessNotifyRoutine   (NTOSKRNL.EXE.@)
 863  */
 864 NTSTATUS WINAPI PsSetCreateProcessNotifyRoutine( PCREATE_PROCESS_NOTIFY_ROUTINE callback, BOOLEAN remove )
 865 {
 866     FIXME( "stub: %p %d\n", callback, remove );
 867     return STATUS_SUCCESS;
 868 }
 869
 870
 871 /*****************************************************
 872  *           DllMain
 873  */
 874 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
 875 {
 876     LARGE_INTEGER count;
 877
 878     switch(reason)
 879     {
 880     case DLL_PROCESS_ATTACH:
 881         DisableThreadLibraryCalls( inst );
 882         RtlAddVectoredExceptionHandler( TRUE, vectored_handler );
 883         KeQueryTickCount( &count );  /* initialize the global KeTickCount */
 884         break;
 885     }
 886     return TRUE;
 887 }