ReactOS 0.4.15-dev-7674-gc0b4db1
regutil.c
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1/*
2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS Setup Library
4 * FILE: base/setup/lib/regutil.c
5 * PURPOSE: Registry utility functions
6 * PROGRAMMERS: Hermes Belusca-Maito (hermes.belusca@sfr.fr)
7 */
8
9/* INCLUDES *****************************************************************/
10
11#include "precomp.h"
12#include "filesup.h"
13
14#include "regutil.h"
15
16#define NDEBUG
17#include <debug.h>
18
19/* GLOBALS ******************************************************************/
20
22 RTL_CONSTANT_STRING(L"SymbolicLinkValue");
23
24/* FUNCTIONS ****************************************************************/
25
26/*
27 * This function is similar to the one in dlls/win32/advapi32/reg/reg.c
28 * TODO: I should review both of them very carefully, because they may need
29 * some adjustments in their NtCreateKey calls, especially for CreateOptions
30 * stuff etc...
31 */
37{
38 OBJECT_ATTRIBUTES LocalObjectAttributes;
39 UNICODE_STRING LocalKeyName;
42 USHORT FullNameLength;
43 PWCHAR Ptr;
44 HANDLE LocalKeyHandle;
45
49 0,
50 NULL,
53 DPRINT("NtCreateKey(%wZ) called (Status %lx)\n", ObjectAttributes->ObjectName, Status);
55 {
56 if (!NT_SUCCESS(Status))
57 DPRINT1("CreateNestedKey: NtCreateKey(%wZ) failed (Status %lx)\n", ObjectAttributes->ObjectName, Status);
58
59 return Status;
60 }
61
62 /* Copy object attributes */
63 RtlCopyMemory(&LocalObjectAttributes,
65 sizeof(OBJECT_ATTRIBUTES));
66 RtlCreateUnicodeString(&LocalKeyName,
67 ObjectAttributes->ObjectName->Buffer);
68 LocalObjectAttributes.ObjectName = &LocalKeyName;
69 FullNameLength = LocalKeyName.Length;
70
71 /* Remove the last part of the key name and try to create the key again. */
73 {
74 Ptr = wcsrchr(LocalKeyName.Buffer, '\\');
75 if (Ptr == NULL || Ptr == LocalKeyName.Buffer)
76 {
78 break;
79 }
80 *Ptr = (WCHAR)0;
81 LocalKeyName.Length = (Ptr - LocalKeyName.Buffer) * sizeof(WCHAR);
82
83 Status = NtCreateKey(&LocalKeyHandle,
85 &LocalObjectAttributes,
86 0,
87 NULL,
88 REG_OPTION_NON_VOLATILE, // FIXME ?
90 DPRINT("NtCreateKey(%wZ) called (Status %lx)\n", &LocalKeyName, Status);
92 DPRINT1("CreateNestedKey: NtCreateKey(%wZ) failed (Status %lx)\n", LocalObjectAttributes.ObjectName, Status);
93 }
94
95 if (!NT_SUCCESS(Status))
96 {
97 RtlFreeUnicodeString(&LocalKeyName);
98 return Status;
99 }
100
101 /* Add removed parts of the key name and create them too. */
102 while (TRUE)
103 {
104 if (LocalKeyName.Length == FullNameLength)
105 {
107 *KeyHandle = LocalKeyHandle;
108 break;
109 }
110 NtClose(LocalKeyHandle);
111
112 LocalKeyName.Buffer[LocalKeyName.Length / sizeof(WCHAR)] = L'\\';
113 LocalKeyName.Length = (USHORT)wcslen(LocalKeyName.Buffer) * sizeof(WCHAR);
114
115 Status = NtCreateKey(&LocalKeyHandle,
117 &LocalObjectAttributes,
118 0,
119 NULL,
121 &Disposition);
122 DPRINT("NtCreateKey(%wZ) called (Status %lx)\n", &LocalKeyName, Status);
123 if (!NT_SUCCESS(Status))
124 {
125 DPRINT1("CreateNestedKey: NtCreateKey(%wZ) failed (Status %lx)\n", LocalObjectAttributes.ObjectName, Status);
126 break;
127 }
128 }
129
130 RtlFreeUnicodeString(&LocalKeyName);
131
132 return Status;
133}
134
135
136/*
137 * Should be called under SE_BACKUP_PRIVILEGE privilege
138 */
142 IN PCWSTR RegistryKey,
143 IN BOOLEAN IsHiveNew,
144 IN HANDLE ProtoKeyHandle
145/*
146 IN PUCHAR Descriptor,
147 IN ULONG DescriptorLength
148*/
149 )
150{
151 /* '.old' is for old valid hives, while '.brk' is for old broken hives */
152 static PCWSTR Extensions[] = {L"old", L"brk"};
153
160 WCHAR PathBuffer[MAX_PATH];
161 WCHAR PathBuffer2[MAX_PATH];
162
163 CombinePaths(PathBuffer, ARRAYSIZE(PathBuffer), 3,
164 NtSystemRoot->Buffer, L"System32\\config", RegistryKey);
165
166 Extension = Extensions[IsHiveNew ? 0 : 1];
167
168 //
169 // FIXME: The best, actually, would be to rename (move) the existing
170 // System32\config\RegistryKey file to System32\config\RegistryKey.old,
171 // and if it already existed some System32\config\RegistryKey.old, we should
172 // first rename this one into System32\config\RegistryKey_N.old before
173 // performing the original rename.
174 //
175
176 /* Check whether the registry hive file already existed, and if so, rename it */
177 if (DoesFileExist(NULL, PathBuffer))
178 {
179 // UINT i;
180
181 DPRINT1("Registry hive '%S' already exists, rename it\n", PathBuffer);
182
183 // i = 1;
184 /* Try first by just appending the '.old' extension */
185 RtlStringCchPrintfW(PathBuffer2, ARRAYSIZE(PathBuffer2),
186 L"%s.%s", PathBuffer, Extension);
187#if 0
188 while (DoesFileExist(NULL, PathBuffer2))
189 {
190 /* An old file already exists, increments its index, but not too much */
191 if (i <= 0xFFFF)
192 {
193 /* Append '_N.old' extension */
194 RtlStringCchPrintfW(PathBuffer2, ARRAYSIZE(PathBuffer2),
195 L"%s_%lu.%s", PathBuffer, i, Extension);
196 ++i;
197 }
198 else
199 {
200 /*
201 * Too many old files exist, we will rename the file
202 * using the name of the oldest one.
203 */
204 RtlStringCchPrintfW(PathBuffer2, ARRAYSIZE(PathBuffer2),
205 L"%s.%s", PathBuffer, Extension);
206 break;
207 }
208 }
209#endif
210
211 /* Now rename the file (force the move) */
212 Status = SetupMoveFile(PathBuffer, PathBuffer2, MOVEFILE_REPLACE_EXISTING);
213 }
214
215 /* Create the file */
216 RtlInitUnicodeString(&FileName, PathBuffer);
218 &FileName,
220 NULL, // Could have been NtSystemRoot, etc...
221 NULL); // Descriptor
222
227 NULL,
229 0,
232 NULL,
233 0);
234 if (!NT_SUCCESS(Status))
235 {
236 DPRINT1("NtCreateFile(%wZ) failed, Status 0x%08lx\n", &FileName, Status);
237 return Status;
238 }
239
240 /* Save the selected hive into the file */
242 if (!NT_SUCCESS(Status))
243 {
244 DPRINT1("NtSaveKeyEx(%wZ) failed, Status 0x%08lx\n", &FileName, Status);
245 }
246
247 /* Close the file and return */
249 return Status;
250}
251
252/* Adapted from ntoskrnl/config/cmsysini.c:CmpLinkKeyToHive() */
256 IN PCWSTR LinkKeyName,
257 IN PCWSTR TargetKeyName)
258{
262 HANDLE LinkKeyHandle;
264
265 /* Initialize the object attributes */
266 RtlInitUnicodeString(&KeyName, LinkKeyName);
268 &KeyName,
270 RootKey,
271 NULL);
272
273 /* Create the link key */
274 Status = NtCreateKey(&LinkKeyHandle,
277 0,
278 NULL,
280 &Disposition);
281 if (!NT_SUCCESS(Status))
282 {
283 DPRINT1("CreateSymLinkKey: couldn't create '%S', Status = 0x%08lx\n",
284 LinkKeyName, Status);
285 return Status;
286 }
287
288 /* Check if the new key was actually created */
290 {
291 DPRINT1("CreateSymLinkKey: %S already exists!\n", LinkKeyName);
292 NtClose(LinkKeyHandle);
293 return STATUS_OBJECT_NAME_EXISTS; // STATUS_OBJECT_NAME_COLLISION;
294 }
295
296 /* Set the target key name as link target */
297 RtlInitUnicodeString(&KeyName, TargetKeyName);
298 Status = NtSetValueKey(LinkKeyHandle,
300 0,
301 REG_LINK,
302 KeyName.Buffer,
303 KeyName.Length);
304
305 /* Close the link key handle */
306 NtClose(LinkKeyHandle);
307
308 if (!NT_SUCCESS(Status))
309 {
310 DPRINT1("CreateSymLinkKey: couldn't create symbolic link '%S' for '%S', Status = 0x%08lx\n",
311 LinkKeyName, TargetKeyName, Status);
312 }
313
314 return Status;
315}
316
320 IN PCWSTR LinkKeyName)
321{
325 HANDLE LinkKeyHandle;
326 // ULONG Disposition;
327
328 /* Initialize the object attributes */
329 RtlInitUnicodeString(&KeyName, LinkKeyName);
331 &KeyName,
332 /* Open the symlink key itself if it exists, and not its target */
334 RootKey,
335 NULL);
336
337 /*
338 * Note: We could use here NtOpenKey() but it does not allow to pass
339 * opening options. NtOpenKeyEx() could do it but is Windows 7+.
340 * So we use the good old NtCreateKey() that can open the key.
341 */
342#if 0
343 Status = NtCreateKey(&LinkKeyHandle,
346 0,
347 NULL,
348 /*REG_OPTION_VOLATILE |*/ REG_OPTION_OPEN_LINK,
349 &Disposition);
350#else
351 Status = NtOpenKey(&LinkKeyHandle,
354#endif
355 if (!NT_SUCCESS(Status))
356 {
357 DPRINT1("NtOpenKey(%wZ) failed (Status %lx)\n", &KeyName, Status);
358 return Status;
359 }
360
361 /*
362 * Delete the special "SymbolicLinkValue" value.
363 * This is technically not needed since we are going to remove
364 * the key anyways, but it is good practice to do it.
365 */
367 if (!NT_SUCCESS(Status))
368 {
369 DPRINT1("NtDeleteValueKey(%wZ) failed (Status %lx)\n", &KeyName, Status);
370 NtClose(LinkKeyHandle);
371 return Status;
372 }
373
374 /* Finally delete the key itself and close the link key handle */
375 Status = NtDeleteKey(LinkKeyHandle);
376 NtClose(LinkKeyHandle);
377
378 if (!NT_SUCCESS(Status))
379 {
380 DPRINT1("DeleteSymLinkKey: couldn't delete symbolic link '%S', Status = 0x%08lx\n",
381 LinkKeyName, Status);
382 }
383
384 return Status;
385}
386
387/*
388 * Should be called under SE_RESTORE_PRIVILEGE privilege
389 */
393 IN PCWSTR RegMountPoint,
394 // IN HANDLE RootDirectory OPTIONAL,
396 IN PCWSTR RegistryKey
397/*
398 IN PUCHAR Descriptor,
399 IN ULONG DescriptorLength
400*/
401 )
402{
404 OBJECT_ATTRIBUTES KeyObjectAttributes;
406 WCHAR PathBuffer[MAX_PATH];
407
408 RtlInitUnicodeString(&KeyName, RegMountPoint);
409 InitializeObjectAttributes(&KeyObjectAttributes,
410 &KeyName,
412 RootKey,
413 NULL); // Descriptor
414
415 CombinePaths(PathBuffer, ARRAYSIZE(PathBuffer), 3,
416 NtSystemRoot->Buffer, L"System32\\config", RegistryKey);
417 RtlInitUnicodeString(&FileName, PathBuffer);
419 &FileName,
421 NULL, // RootDirectory,
422 NULL);
423
424 /* Mount the registry hive in the registry namespace */
425 return NtLoadKey(&KeyObjectAttributes, &FileObjectAttributes);
426}
427
428/*
429 * Should be called under SE_RESTORE_PRIVILEGE privilege
430 */
434 IN PCWSTR RegMountPoint,
435 IN ULONG Flags)
436{
439
440 RtlInitUnicodeString(&KeyName, RegMountPoint);
442 &KeyName,
444 RootKey,
445 NULL);
446
447 // NOTE: NtUnloadKey == NtUnloadKey2 with Flags == 0.
449}
450
451/*
452 * Should be called under SE_RESTORE_PRIVILEGE privilege
453 */
456 // IN HANDLE RootKey OPTIONAL,
457 // // IN HANDLE RootDirectory OPTIONAL,
459 IN PCWSTR RegistryKey /* ,
460 IN PCWSTR RegMountPoint */)
461{
463
464 /* Try to mount the specified registry hive */
466 L"\\Registry\\Machine\\USetup_VerifyHive",
468 RegistryKey
469 /* NULL, 0 */);
470 if (!NT_SUCCESS(Status))
471 {
472 DPRINT1("ConnectRegistry(%S) failed, Status 0x%08lx\n", RegistryKey, Status);
473 }
474
475 DPRINT1("VerifyRegistryHive: ConnectRegistry(%S) returns Status 0x%08lx\n", RegistryKey, Status);
476
477 //
478 // TODO: Check the Status error codes: STATUS_SUCCESS, STATUS_REGISTRY_RECOVERED,
479 // STATUS_REGISTRY_HIVE_RECOVERED, STATUS_REGISTRY_CORRUPT, STATUS_REGISTRY_IO_FAILED,
480 // STATUS_NOT_REGISTRY_FILE, STATUS_CANNOT_LOAD_REGISTRY_FILE ;
481 //(STATUS_HIVE_UNLOADED) ; STATUS_SYSTEM_HIVE_TOO_LARGE
482 //
483
484 if (Status == STATUS_REGISTRY_HIVE_RECOVERED) // NT_SUCCESS is still FALSE in this case!
485 DPRINT1("VerifyRegistryHive: Registry hive %S was recovered but some data may be lost (Status 0x%08lx)\n", RegistryKey, Status);
486
487 if (!NT_SUCCESS(Status))
488 {
489 DPRINT1("VerifyRegistryHive: Registry hive %S is corrupted (Status 0x%08lx)\n", RegistryKey, Status);
490 return Status;
491 }
492
494 DPRINT1("VerifyRegistryHive: Registry hive %S succeeded recovered (Status 0x%08lx)\n", RegistryKey, Status);
495
496 /* Unmount the hive */
498 L"\\Registry\\Machine\\USetup_VerifyHive",
499 0);
500 if (!NT_SUCCESS(Status))
501 {
502 DPRINT1("DisconnectRegistry(%S) failed, Status 0x%08lx\n", RegistryKey, Status);
503 }
504
505 return Status;
506}
507
508/* EOF */
unsigned char BOOLEAN
LONG NTSTATUS
Definition: precomp.h:26
#define FILE_NON_DIRECTORY_FILE
Definition: constants.h:492
#define DPRINT1
Definition: precomp.h:8
NTSYSAPI BOOLEAN NTAPI RtlCreateUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
IN PUNICODE_STRING IN POBJECT_ATTRIBUTES ObjectAttributes
Definition: conport.c:36
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
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Definition: compat.h:34
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Definition: compat.h:137
struct _FileName FileName
Definition: fatprocs.h:896
NTSTATUS CombinePaths(OUT PWSTR PathBuffer, IN SIZE_T cchPathSize, IN ULONG NumberOfPathComponents, IN ...)
Definition: filesup.c:681
NTSTATUS SetupMoveFile(IN PCWSTR ExistingFileName, IN PCWSTR NewFileName, IN ULONG Flags)
Definition: filesup.c:480
#define MOVEFILE_REPLACE_EXISTING
Definition: filesup.h:28
#define DoesFileExist(RootDirectory, FileName)
Definition: filesup.h:77
_Inout_opt_ PUNICODE_STRING Extension
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_Must_inspect_result_ _In_opt_ PFLT_INSTANCE _Out_ PHANDLE FileHandle
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Status
Definition: gdiplustypes.h:25
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
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#define OBJ_CASE_INSENSITIVE
Definition: winternl.h:228
#define OBJ_OPENLINK
Definition: winternl.h:230
static OUT PIO_STATUS_BLOCK IoStatusBlock
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_Must_inspect_result_ _Out_ PNDIS_STATUS _In_ NDIS_HANDLE _In_ ULONG _Out_ PNDIS_STRING _Out_ PNDIS_HANDLE KeyHandle
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_In_ ACCESS_MASK _In_ POBJECT_ATTRIBUTES _Reserved_ ULONG _In_opt_ PUNICODE_STRING _In_ ULONG _Out_opt_ PULONG Disposition
Definition: cmfuncs.h:56
NTSYSAPI NTSTATUS NTAPI NtOpenKey(OUT PHANDLE KeyHandle, IN ACCESS_MASK DesiredAccess, IN POBJECT_ATTRIBUTES ObjectAttributes)
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NTSYSAPI NTSTATUS NTAPI NtSetValueKey(IN HANDLE KeyHandle, IN PUNICODE_STRING ValueName, IN ULONG TitleIndex OPTIONAL, IN ULONG Type, IN PVOID Data, IN ULONG DataSize)
Definition: ntapi.c:859
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Definition: nt_native.h:1070
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Definition: nt_native.h:40
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Definition: nt_native.h:1041
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Definition: ntapi.c:1014
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Definition: nt_native.h:1063
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Definition: nt_native.h:1018
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Definition: nt_native.h:1057
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Definition: nt_native.h:1084
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Definition: nt_native.h:57
NTSYSAPI VOID NTAPI RtlFreeUnicodeString(PUNICODE_STRING UnicodeString)
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Definition: nt_native.h:1500
#define KEY_CREATE_LINK
Definition: nt_native.h:1021
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Definition: nt_native.h:1060
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Definition: nt_native.h:1017
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Definition: nt_native.h:660
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Definition: ntapi.c:1796
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Definition: ntapi.c:1643
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Definition: ntapi.c:408
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Definition: ntapi.c:240
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PVOID *typedef PHANDLE
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Definition: ntstatus.h:114
#define STATUS_REGISTRY_HIVE_RECOVERED
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unsigned short USHORT
Definition: pedump.c:61
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Definition: regutil.c:432
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Definition: regutil.c:455
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Definition: regutil.c:33
static UNICODE_STRING SymbolicLinkValueName
Definition: regutil.c:21
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Definition: regutil.c:140
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Definition: regutil.c:254
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Definition: regutil.c:318
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Definition: regutil.c:391
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Definition: registry.c:55
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Definition: typedefs.h:39
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Definition: typedefs.h:56
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Definition: typedefs.h:59
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Definition: wdfdevice.h:2658
_Must_inspect_result_ _In_ WDFDEVICE _In_ PCUNICODE_STRING KeyName
Definition: wdfdevice.h:2699
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Definition: wdfregistry.h:118
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