ReactOS  0.4.14-dev-342-gdc047f9
kmtest_drv.c
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1 /*
2  * PROJECT: ReactOS kernel-mode tests
3  * LICENSE: LGPL-2.1+ (https://spdx.org/licenses/LGPL-2.1+)
4  * PURPOSE: Kernel-Mode Test Suite driver
5  * COPYRIGHT: Copyright 2011-2018 Thomas Faber <thomas.faber@reactos.org>
6  * Copyright 2013 Nikolay Borisov <nib9@aber.ac.uk>
7  */
8 
9 #include <ntddk.h>
10 #include <ntifs.h>
11 #include <ndk/ketypes.h>
12 #include <ntstrsafe.h>
13 #include <limits.h>
14 #include <pseh/pseh2.h>
15 
16 #define NDEBUG
17 #include <debug.h>
18 
19 #include <kmt_public.h>
20 #define KMT_DEFINE_TEST_FUNCTIONS
21 #include <kmt_test.h>
22 
23 /* Usermode callback definitions */
24 typedef struct _KMT_USER_WORK_ENTRY
25 {
31 
32 typedef struct _KMT_USER_WORK_LIST
33 {
38 
39 /* Prototypes */
40 DRIVER_INITIALIZE DriverEntry;
41 static DRIVER_UNLOAD DriverUnload;
51 
52 /* Globals */
54 PDRIVER_OBJECT KmtDriverObject = NULL;
55 static KMT_USER_WORK_LIST WorkList;
56 static ULONG RequestId = 0;
57 
58 /* Entry */
72 NTAPI
76 {
79  PKMT_DEVICE_EXTENSION DeviceExtension;
80  PKPRCB Prcb;
81 
82  PAGED_CODE();
83 
85 
86  DPRINT("DriverEntry\n");
87 
88  Prcb = KeGetCurrentPrcb();
91  KmtDriverObject = DriverObject;
92 
94  Status = IoCreateDevice(DriverObject, sizeof(KMT_DEVICE_EXTENSION),
95  &DeviceName,
99 
100  if (!NT_SUCCESS(Status))
101  goto cleanup;
102 
103  DPRINT("DriverEntry. Created DeviceObject %p. DeviceExtension %p\n",
105  DeviceExtension = MainDeviceObject->DeviceExtension;
106  DeviceExtension->ResultBuffer = NULL;
107  DeviceExtension->Mdl = NULL;
108 
114 
115  ExInitializeFastMutex(&WorkList.Lock);
117  InitializeListHead(&WorkList.ListHead);
118 
119 cleanup:
121  {
124  }
125 
126  return Status;
127 }
128 
129 /* Dispatch functions */
138 static
139 VOID
140 NTAPI
143 {
144  PAGED_CODE();
145 
147 
148  DPRINT("DriverUnload\n");
149 
151 
152  if (MainDeviceObject)
153  {
154 #if DBG
155  PKMT_DEVICE_EXTENSION DeviceExtension = MainDeviceObject->DeviceExtension;
156  ASSERT(!DeviceExtension->Mdl);
157  ASSERT(!DeviceExtension->ResultBuffer);
158 #endif
161  }
162 }
163 
176 static
177 NTSTATUS
178 NTAPI
181  IN PIRP Irp)
182 {
184  PIO_STACK_LOCATION IoStackLocation;
185 
186  PAGED_CODE();
187 
188  IoStackLocation = IoGetCurrentIrpStackLocation(Irp);
189 
190  DPRINT("DriverCreate. DeviceObject=%p, RequestorMode=%d, FileObject=%p, FsContext=%p, FsContext2=%p\n",
191  DeviceObject, Irp->RequestorMode, IoStackLocation->FileObject,
192  IoStackLocation->FileObject->FsContext, IoStackLocation->FileObject->FsContext2);
193 
194  Irp->IoStatus.Status = Status;
195  Irp->IoStatus.Information = 0;
196 
198 
199  return Status;
200 }
201 
214 static
215 NTSTATUS
216 NTAPI
219  IN PIRP Irp)
220 {
222  PIO_STACK_LOCATION IoStackLocation;
223  PKMT_DEVICE_EXTENSION DeviceExtension;
224 
225  PAGED_CODE();
226 
227  IoStackLocation = IoGetCurrentIrpStackLocation(Irp);
228 
229  DPRINT("DriverCleanup. DeviceObject=%p, RequestorMode=%d, FileObject=%p, FsContext=%p, FsContext2=%p\n",
230  DeviceObject, Irp->RequestorMode, IoStackLocation->FileObject,
231  IoStackLocation->FileObject->FsContext, IoStackLocation->FileObject->FsContext2);
232 
233  ASSERT(IoStackLocation->FileObject->FsContext2 == NULL);
234  DeviceExtension = DeviceObject->DeviceExtension;
235  if (DeviceExtension->Mdl && IoStackLocation->FileObject->FsContext == DeviceExtension->Mdl)
236  {
237  MmUnlockPages(DeviceExtension->Mdl);
238  IoFreeMdl(DeviceExtension->Mdl);
239  DeviceExtension->Mdl = NULL;
240  ResultBuffer = DeviceExtension->ResultBuffer = NULL;
241  }
242  else
243  {
244  ASSERT(IoStackLocation->FileObject->FsContext == NULL);
245  }
246 
247  Irp->IoStatus.Status = Status;
248  Irp->IoStatus.Information = 0;
249 
251 
252  return Status;
253 }
254 
267 static
268 NTSTATUS
269 NTAPI
272  IN PIRP Irp)
273 {
275 
276  PAGED_CODE();
277 
278  DPRINT("DriverClose. DeviceObject=%p, RequestorMode=%d\n",
279  DeviceObject, Irp->RequestorMode);
280 
281  Irp->IoStatus.Status = Status;
282  Irp->IoStatus.Information = 0;
283 
285 
286  return Status;
287 }
288 
301 static
302 NTSTATUS
303 NTAPI
306  IN PIRP Irp)
307 {
309  PIO_STACK_LOCATION IoStackLocation;
310  SIZE_T Length = 0;
311 
312  PAGED_CODE();
313 
314  IoStackLocation = IoGetCurrentIrpStackLocation(Irp);
315 
316  DPRINT("DriverIoControl. Code=0x%08X, DeviceObject=%p, FileObject=%p, FsContext=%p, FsContext2=%p\n",
317  IoStackLocation->Parameters.DeviceIoControl.IoControlCode,
318  DeviceObject, IoStackLocation->FileObject,
319  IoStackLocation->FileObject->FsContext, IoStackLocation->FileObject->FsContext2);
320 
321  switch (IoStackLocation->Parameters.DeviceIoControl.IoControlCode)
322  {
324  {
326  LPSTR OutputBuffer = Irp->AssociatedIrp.SystemBuffer;
327  size_t Remaining = IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength;
328 
329  DPRINT("DriverIoControl. IOCTL_KMTEST_GET_TESTS, outlen=%lu\n",
330  IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength);
331 
332  for (TestEntry = TestList; TestEntry->TestName; ++TestEntry)
333  {
334  RtlStringCbCopyExA(OutputBuffer, Remaining, TestEntry->TestName, &OutputBuffer, &Remaining, 0);
335  if (Remaining)
336  {
337  *OutputBuffer++ = '\0';
338  --Remaining;
339  }
340  }
341  if (Remaining)
342  {
343  *OutputBuffer++ = '\0';
344  --Remaining;
345  }
346  Length = IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength - Remaining;
347  break;
348  }
350  {
351  ANSI_STRING TestName;
353 
354  DPRINT("DriverIoControl. IOCTL_KMTEST_RUN_TEST, inlen=%lu, outlen=%lu\n",
355  IoStackLocation->Parameters.DeviceIoControl.InputBufferLength,
356  IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength);
357  TestName.Length = TestName.MaximumLength = (USHORT)min(IoStackLocation->Parameters.DeviceIoControl.InputBufferLength, USHRT_MAX);
358  TestName.Buffer = Irp->AssociatedIrp.SystemBuffer;
359  DPRINT("DriverIoControl. Run test: %Z\n", &TestName);
360 
361  for (TestEntry = TestList; TestEntry->TestName; ++TestEntry)
362  {
363  ANSI_STRING EntryName;
364  if (TestEntry->TestName[0] == '-')
365  RtlInitAnsiString(&EntryName, TestEntry->TestName + 1);
366  else
367  RtlInitAnsiString(&EntryName, TestEntry->TestName);
368 
369  if (!RtlCompareString(&TestName, &EntryName, FALSE))
370  {
371  DPRINT1("DriverIoControl. Starting test %Z\n", &EntryName);
372  TestEntry->TestFunction();
373  DPRINT1("DriverIoControl. Finished test %Z\n", &EntryName);
374  break;
375  }
376  }
377 
378  if (!TestEntry->TestName)
380 
381  break;
382  }
384  {
385  PKMT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
386 
387  DPRINT("DriverIoControl. IOCTL_KMTEST_SET_RESULTBUFFER, buffer=%p, inlen=%lu, outlen=%lu\n",
388  IoStackLocation->Parameters.DeviceIoControl.Type3InputBuffer,
389  IoStackLocation->Parameters.DeviceIoControl.InputBufferLength,
390  IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength);
391 
392  if (DeviceExtension->Mdl)
393  {
394  if (IoStackLocation->FileObject->FsContext != DeviceExtension->Mdl)
395  {
397  break;
398  }
399  MmUnlockPages(DeviceExtension->Mdl);
400  IoFreeMdl(DeviceExtension->Mdl);
401  IoStackLocation->FileObject->FsContext = NULL;
402  ResultBuffer = DeviceExtension->ResultBuffer = NULL;
403  }
404 
405  DeviceExtension->Mdl = IoAllocateMdl(IoStackLocation->Parameters.DeviceIoControl.Type3InputBuffer,
406  IoStackLocation->Parameters.DeviceIoControl.InputBufferLength,
407  FALSE, FALSE, NULL);
408  if (!DeviceExtension->Mdl)
409  {
411  break;
412  }
413 
414  _SEH2_TRY
415  {
416  MmProbeAndLockPages(DeviceExtension->Mdl, UserMode, IoModifyAccess);
417  }
419  {
421  IoFreeMdl(DeviceExtension->Mdl);
422  DeviceExtension->Mdl = NULL;
423  break;
424  } _SEH2_END;
425 
426  ResultBuffer = DeviceExtension->ResultBuffer = MmGetSystemAddressForMdlSafe(DeviceExtension->Mdl, NormalPagePriority);
427  IoStackLocation->FileObject->FsContext = DeviceExtension->Mdl;
428 
429  DPRINT("DriverIoControl. ResultBuffer: %ld %ld %ld %ld\n",
432  break;
433  }
435  {
437  PKMT_USER_WORK_ENTRY WorkItem;
438 
439  DPRINT("DriverIoControl. IOCTL_KMTEST_USERMODE_AWAIT_REQ, len=%lu\n",
440  IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength);
441 
442  /* TODO: prevent multiple concurrent invocations */
445  break;
446 
447  if (IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength < sizeof(KMT_CALLBACK_REQUEST_PACKET))
448  {
450  break;
451  }
452 
453  ASSERT(!IsListEmpty(&WorkList.ListHead));
454 
455  Entry = WorkList.ListHead.Flink;
456  WorkItem = CONTAINING_RECORD(Entry, KMT_USER_WORK_ENTRY, ListEntry);
457 
458  Length = sizeof(WorkItem->Request);
459  RtlCopyMemory(Irp->AssociatedIrp.SystemBuffer, &WorkItem->Request, Length);
461 
462  KeClearEvent(&WorkList.NewWorkEvent);
463  break;
464 
465  }
467  {
469  PKMT_USER_WORK_ENTRY WorkEntry;
470  PVOID Response;
471  ULONG ResponseSize = IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength;
472 
473  DPRINT("DriverIoControl. IOCTL_KMTEST_USERMODE_SEND_RESPONSE, inlen=%lu, outlen=%lu\n",
474  IoStackLocation->Parameters.DeviceIoControl.InputBufferLength,
475  IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength);
476 
477  if (IoStackLocation->Parameters.DeviceIoControl.InputBufferLength != sizeof(ULONG) || ResponseSize != sizeof(KMT_RESPONSE))
478  {
480  break;
481  }
482 
483  /* FIXME: don't misuse the output buffer as an input! */
485  if (Response == NULL)
486  {
488  break;
489  }
490 
491  ExAcquireFastMutex(&WorkList.Lock);
492 
494 
495  Entry = WorkList.ListHead.Flink;
496  while (Entry != &WorkList.ListHead)
497  {
498  WorkEntry = CONTAINING_RECORD(Entry, KMT_USER_WORK_ENTRY, ListEntry);
499  if (WorkEntry->Request.RequestId == *(PULONG)Irp->AssociatedIrp.SystemBuffer)
500  {
501  WorkEntry->Response = ExAllocatePoolWithTag(PagedPool, sizeof(KMT_RESPONSE), 'pseR');
502  if (WorkEntry->Response == NULL)
503  {
505  break;
506  }
507 
508  RtlCopyMemory(WorkEntry->Response, Response, ResponseSize);
511  break;
512  }
513 
514  Entry = Entry->Flink;
515  }
516 
517  ExReleaseFastMutex(&WorkList.Lock);
518 
519  break;
520  }
521  default:
522  DPRINT1("DriverIoControl. Invalid IoCtl code 0x%08X\n",
523  IoStackLocation->Parameters.DeviceIoControl.IoControlCode);
525  break;
526  }
527 
528  Irp->IoStatus.Status = Status;
529  Irp->IoStatus.Information = Length;
530 
532 
533  return Status;
534 }
535 
554 {
557  PKMT_USER_WORK_ENTRY WorkEntry;
559 
560  PAGED_CODE();
561 
562  WorkEntry = ExAllocatePoolWithTag(PagedPool, sizeof(KMT_USER_WORK_ENTRY), 'ekrW');
563  if (WorkEntry == NULL)
564  return NULL;
565 
567  WorkEntry->Request.RequestId = RequestId++;
568  WorkEntry->Request.OperationClass = Operation;
569  WorkEntry->Request.Parameters = Parameters;
570  WorkEntry->Response = NULL;
571 
572  ExAcquireFastMutex(&WorkList.Lock);
573  InsertTailList(&WorkList.ListHead, &WorkEntry->ListEntry);
574  ExReleaseFastMutex(&WorkList.Lock);
575 
577 
578  Timeout.QuadPart = -10 * 1000 * 1000 * 10; //wait for 10 seconds
580 
582  {
583  DPRINT1("Unexpected callback abortion! Reason: %lx\n", Status);
584  }
585 
586  ExAcquireFastMutex(&WorkList.Lock);
587  RemoveEntryList(&WorkEntry->ListEntry);
588  ExReleaseFastMutex(&WorkList.Lock);
589 
590  Result = WorkEntry->Response;
591 
592  ExFreePoolWithTag(WorkEntry, 'ekrW');
593 
594  return Result;
595 }
596 
605 VOID
608 {
609  PAGED_CODE();
610 
611  ExFreePoolWithTag(Response, 'pseR');
612 }
613 
619 static
620 VOID
622 {
624 
625  PAGED_CODE();
626 
627  ExAcquireFastMutex(&WorkList.Lock);
628 
629  Entry = WorkList.ListHead.Flink;
630  while (Entry != &WorkList.ListHead)
631  {
633  if (WorkEntry->Response != NULL)
634  {
635  KmtFreeCallbackResponse(WorkEntry->Response);
636  }
637 
638  Entry = Entry->Flink;
639 
640  ExFreePoolWithTag(WorkEntry, 'ekrW');
641  }
642 
643  ExReleaseFastMutex(&WorkList.Lock);
644 }
static VOID KmtCleanUsermodeCallbacks(VOID)
Definition: kmtest_drv.c:621
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Definition: pseh2_64.h:12
struct _NAMED_PIPE_CREATE_PARAMETERS * Parameters
Definition: iotypes.h:2772
VOID NTAPI KeClearEvent(IN PKEVENT Event)
Definition: eventobj.c:22
return STATUS_SUCCESS
Definition: btrfs.c:2938
PKMT_RESULTBUFFER ResultBuffer
static NTSTATUS NTAPI DriverClose(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
Definition: kmtest_drv.c:270
static DRIVER_UNLOAD DriverUnload
Definition: kmtest_drv.c:41
base of all file and directory entries
Definition: entries.h:82
#define FILE_READ_ONLY_DEVICE
Definition: nt_native.h:808
#define IRP_MJ_DEVICE_CONTROL
Definition: rdpdr.c:52
#define IOCTL_KMTEST_USERMODE_AWAIT_REQ
Definition: kmt_public.h:25