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453c3d0af0
* Remove superflous debug prints used a long time ago while debugging * Set the CreatorUniqueProcess * Align code to 80 chars * Do a privilege check of OB_FLAG_PERMANENT is being used, and de-allocate the object if this failed. * Send the PreviousMode to ObpAllocateObject so that it can honor it and set the OB_FLAG_KERNEL_MODE flag. * Use OBJECT_TYPE accounting to increase TotalNumberOfObjects. * Fail ObCreateObject in low-memory situations instead of ignoring it. * Respect OBJECT_TYPE.TypeInfo.InvalidAttributes if an attempt is to create an object with invalid attributes is detected. * Respect PagedPoolCharge and NonPagedPoolCharge parameters and save them in the OBJECT_CREATE_INFORMATION strucutre. svn path=/trunk/; revision=22099
176 lines
6.5 KiB
C
176 lines
6.5 KiB
C
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: ntoskrnl/ob/init.c
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* PURPOSE: Handles Object Manager Initialization and Shutdown
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* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
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* Eric Kohl
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* Thomas Weidenmueller (w3seek@reactos.org)
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*/
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/* INCLUDES ******************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <internal/debug.h>
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#if defined (ALLOC_PRAGMA)
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#pragma alloc_text(INIT, ObInit)
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#endif
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GENERIC_MAPPING ObpTypeMapping =
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{
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STANDARD_RIGHTS_READ,
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STANDARD_RIGHTS_WRITE,
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STANDARD_RIGHTS_EXECUTE,
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0x000F0001
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};
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GENERIC_MAPPING ObpDirectoryMapping =
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{
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STANDARD_RIGHTS_READ | DIRECTORY_QUERY |
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DIRECTORY_TRAVERSE,
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STANDARD_RIGHTS_WRITE | DIRECTORY_CREATE_SUBDIRECTORY |
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DIRECTORY_CREATE_OBJECT,
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STANDARD_RIGHTS_EXECUTE | DIRECTORY_QUERY |
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DIRECTORY_TRAVERSE,
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DIRECTORY_ALL_ACCESS
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};
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PDEVICE_MAP ObSystemDeviceMap = NULL;
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/* PRIVATE FUNCTIONS *********************************************************/
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VOID
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INIT_FUNCTION
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ObInit(VOID)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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UNICODE_STRING Name;
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SECURITY_DESCRIPTOR SecurityDescriptor;
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OBJECT_TYPE_INITIALIZER ObjectTypeInitializer;
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OBP_LOOKUP_CONTEXT Context;
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/* Initialize the security descriptor cache */
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ObpInitSdCache();
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/* Initialize the Default Event */
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KeInitializeEvent(&ObpDefaultObject, NotificationEvent, TRUE );
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/* Setup the Object Reaper */
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ExInitializeWorkItem(&ObpReaperWorkItem, ObpReapObject, NULL);
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/* Create the Type Type */
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DPRINT("Creating Type Type\n");
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RtlZeroMemory(&ObjectTypeInitializer, sizeof(ObjectTypeInitializer));
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RtlInitUnicodeString(&Name, L"Type");
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ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
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ObjectTypeInitializer.ValidAccessMask = OBJECT_TYPE_ALL_ACCESS;
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ObjectTypeInitializer.UseDefaultObject = TRUE;
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ObjectTypeInitializer.MaintainTypeList = TRUE;
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ObjectTypeInitializer.PoolType = NonPagedPool;
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ObjectTypeInitializer.GenericMapping = ObpTypeMapping;
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ObjectTypeInitializer.DefaultNonPagedPoolCharge = sizeof(OBJECT_TYPE);
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ObpCreateTypeObject(&ObjectTypeInitializer, &Name, &ObTypeObjectType);
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/* Create the Directory Type */
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DPRINT("Creating Directory Type\n");
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RtlZeroMemory(&ObjectTypeInitializer, sizeof(ObjectTypeInitializer));
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RtlInitUnicodeString(&Name, L"Directory");
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ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
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ObjectTypeInitializer.ValidAccessMask = DIRECTORY_ALL_ACCESS;
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ObjectTypeInitializer.UseDefaultObject = FALSE;
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ObjectTypeInitializer.MaintainTypeList = FALSE;
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ObjectTypeInitializer.GenericMapping = ObpDirectoryMapping;
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ObjectTypeInitializer.DefaultNonPagedPoolCharge = sizeof(OBJECT_DIRECTORY);
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ObpCreateTypeObject(&ObjectTypeInitializer, &Name, &ObDirectoryType);
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/* Create security descriptor */
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RtlCreateSecurityDescriptor(&SecurityDescriptor,
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SECURITY_DESCRIPTOR_REVISION1);
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RtlSetOwnerSecurityDescriptor(&SecurityDescriptor,
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SeAliasAdminsSid,
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FALSE);
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RtlSetGroupSecurityDescriptor(&SecurityDescriptor,
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SeLocalSystemSid,
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FALSE);
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RtlSetDaclSecurityDescriptor(&SecurityDescriptor,
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TRUE,
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SePublicDefaultDacl,
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FALSE);
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/* Create root directory */
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DPRINT("Creating Root Directory\n");
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InitializeObjectAttributes(&ObjectAttributes,
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NULL,
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OBJ_PERMANENT,
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NULL,
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&SecurityDescriptor);
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ObCreateObject(KernelMode,
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ObDirectoryType,
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&ObjectAttributes,
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KernelMode,
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NULL,
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sizeof(OBJECT_DIRECTORY),
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0,
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0,
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(PVOID*)&NameSpaceRoot);
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ObInsertObject((PVOID)NameSpaceRoot,
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NULL,
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DIRECTORY_ALL_ACCESS,
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0,
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NULL,
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NULL);
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/* Create '\ObjectTypes' directory */
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RtlInitUnicodeString(&Name, L"\\ObjectTypes");
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InitializeObjectAttributes(&ObjectAttributes,
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&Name,
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OBJ_PERMANENT,
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NULL,
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&SecurityDescriptor);
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ObCreateObject(KernelMode,
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ObDirectoryType,
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&ObjectAttributes,
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KernelMode,
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NULL,
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sizeof(OBJECT_DIRECTORY),
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0,
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0,
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(PVOID*)&ObpTypeDirectoryObject);
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ObInsertObject((PVOID)ObpTypeDirectoryObject,
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NULL,
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DIRECTORY_ALL_ACCESS,
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0,
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NULL,
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NULL);
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/* Insert the two objects we already created but couldn't add */
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/* NOTE: Uses TypeList & Creator Info in OB 2.0 */
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Context.Directory = ObpTypeDirectoryObject;
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Context.DirectoryLocked = TRUE;
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if (!ObpLookupEntryDirectory(ObpTypeDirectoryObject,
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&OBJECT_HEADER_TO_NAME_INFO(OBJECT_TO_OBJECT_HEADER(ObTypeObjectType))->Name,
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OBJ_CASE_INSENSITIVE,
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FALSE,
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&Context))
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{
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ObpInsertEntryDirectory(ObpTypeDirectoryObject, &Context, OBJECT_TO_OBJECT_HEADER(ObTypeObjectType));
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}
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if (!ObpLookupEntryDirectory(ObpTypeDirectoryObject,
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&OBJECT_HEADER_TO_NAME_INFO(OBJECT_TO_OBJECT_HEADER(ObDirectoryType))->Name,
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OBJ_CASE_INSENSITIVE,
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FALSE,
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&Context))
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{
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ObpInsertEntryDirectory(ObpTypeDirectoryObject, &Context, OBJECT_TO_OBJECT_HEADER(ObDirectoryType));
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}
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/* Create 'symbolic link' object type */
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ObInitSymbolicLinkImplementation();
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/* FIXME: Hack Hack! */
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ObSystemDeviceMap = ExAllocatePoolWithTag(NonPagedPool, sizeof(*ObSystemDeviceMap), TAG('O', 'b', 'D', 'm'));
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RtlZeroMemory(ObSystemDeviceMap, sizeof(*ObSystemDeviceMap));
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}
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/* EOF */
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