-/*
+/* $Id$
+ *
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/ob/namespc.c
* PURPOSE: Manages the system namespace
- * PROGRAMMER: David Welch (welch@mcmail.com)
- * UPDATE HISTORY:
- * 22/05/98: Created
+ *
+ * PROGRAMMERS: David Welch (welch@mcmail.com)
*/
/* INCLUDES ***************************************************************/
-#include <wchar.h>
-#include <ddk/ntddk.h>
-#include <internal/ob.h>
-#include <internal/io.h>
-#include <internal/string.h>
-
+#include <ntoskrnl.h>
#define NDEBUG
#include <internal/debug.h>
+
/* GLOBALS ****************************************************************/
POBJECT_TYPE ObDirectoryType = NULL;
+POBJECT_TYPE ObTypeObjectType = NULL;
PDIRECTORY_OBJECT NameSpaceRoot = NULL;
+ /* FIXME: Move this somewhere else once devicemap support is in */
+PDEVICE_MAP ObSystemDeviceMap = NULL;
+
+static GENERIC_MAPPING ObpDirectoryMapping = {
+ STANDARD_RIGHTS_READ|DIRECTORY_QUERY|DIRECTORY_TRAVERSE,
+ STANDARD_RIGHTS_WRITE|DIRECTORY_CREATE_OBJECT|DIRECTORY_CREATE_SUBDIRECTORY,
+ STANDARD_RIGHTS_EXECUTE|DIRECTORY_QUERY|DIRECTORY_TRAVERSE,
+ DIRECTORY_ALL_ACCESS};
+
+static GENERIC_MAPPING ObpTypeMapping = {
+ STANDARD_RIGHTS_READ,
+ STANDARD_RIGHTS_WRITE,
+ STANDARD_RIGHTS_EXECUTE,
+ 0x000F0001};
/* FUNCTIONS **************************************************************/
-NTSTATUS ObReferenceObjectByName(PUNICODE_STRING ObjectPath,
- ULONG Attributes,
- PACCESS_STATE PassedAccessState,
- ACCESS_MASK DesiredAccess,
- POBJECT_TYPE ObjectType,
- KPROCESSOR_MODE AccessMode,
- PVOID ParseContext,
- PVOID* ObjectPtr)
+/*
+ * @implemented
+ */
+NTSTATUS STDCALL
+ObReferenceObjectByName(PUNICODE_STRING ObjectPath,
+ ULONG Attributes,
+ PACCESS_STATE PassedAccessState,
+ ACCESS_MASK DesiredAccess,
+ POBJECT_TYPE ObjectType,
+ KPROCESSOR_MODE AccessMode,
+ PVOID ParseContext,
+ PVOID* ObjectPtr)
{
- PVOID Object;
- PWSTR RemainingPath;
+ PVOID Object = NULL;
+ UNICODE_STRING RemainingPath;
OBJECT_ATTRIBUTES ObjectAttributes;
+ NTSTATUS Status;
+ PAGED_CODE();
+
InitializeObjectAttributes(&ObjectAttributes,
ObjectPath,
- 0,
+ Attributes | OBJ_OPENIF,
NULL,
NULL);
- ObFindObject(&ObjectAttributes,
- &Object,
- &RemainingPath);
-
- if (RemainingPath != NULL ||
- Object == NULL)
+ Status = ObFindObject(&ObjectAttributes,
+ &Object,
+ &RemainingPath,
+ ObjectType);
+ if (!NT_SUCCESS(Status))
{
+ return(Status);
+ }
+CHECKPOINT;
+DPRINT("RemainingPath.Buffer '%S' Object %p\n", RemainingPath.Buffer, Object);
+
+ if (RemainingPath.Buffer != NULL || Object == NULL)
+ {
+CHECKPOINT;
+DPRINT("Object %p\n", Object);
*ObjectPtr = NULL;
- return(STATUS_UNSUCCESSFUL);
+ RtlFreeUnicodeString (&RemainingPath);
+ return(STATUS_OBJECT_NAME_NOT_FOUND);
}
*ObjectPtr = Object;
+ RtlFreeUnicodeString (&RemainingPath);
return(STATUS_SUCCESS);
}
-VOID ObAddEntryDirectory(PDIRECTORY_OBJECT Parent,
- POBJECT Object,
- PWSTR Name)
+
+/**********************************************************************
+ * NAME EXPORTED
+ * ObOpenObjectByName
+ *
+ * DESCRIPTION
+ * Obtain a handle to an existing object.
+ *
+ * ARGUMENTS
+ * ObjectAttributes
+ * ...
+ * ObjectType
+ * ...
+ * ParseContext
+ * ...
+ * AccessMode
+ * ...
+ * DesiredAccess
+ * ...
+ * PassedAccessState
+ * ...
+ * Handle
+ * Handle to close.
+ *
+ * RETURN VALUE
+ * Status.
+ *
+ * @implemented
+ */
+NTSTATUS STDCALL
+ObOpenObjectByName(IN POBJECT_ATTRIBUTES ObjectAttributes,
+ IN POBJECT_TYPE ObjectType,
+ IN OUT PVOID ParseContext,
+ IN KPROCESSOR_MODE AccessMode,
+ IN ACCESS_MASK DesiredAccess,
+ IN PACCESS_STATE PassedAccessState,
+ OUT PHANDLE Handle)
+{
+ UNICODE_STRING RemainingPath;
+ PVOID Object = NULL;
+ NTSTATUS Status;
+
+ PAGED_CODE();
+
+ DPRINT("ObOpenObjectByName(...)\n");
+
+ Status = ObFindObject(ObjectAttributes,
+ &Object,
+ &RemainingPath,
+ ObjectType);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT("ObFindObject() failed (Status %lx)\n", Status);
+ return Status;
+ }
+
+ if (RemainingPath.Buffer != NULL ||
+ Object == NULL)
+ {
+ RtlFreeUnicodeString(&RemainingPath);
+ return STATUS_UNSUCCESSFUL;
+ }
+
+ Status = ObCreateHandle(PsGetCurrentProcess(),
+ Object,
+ DesiredAccess,
+ FALSE,
+ Handle);
+
+ ObDereferenceObject(Object);
+ RtlFreeUnicodeString(&RemainingPath);
+
+ return Status;
+}
+
+VOID
+STDCALL
+ObQueryDeviceMapInformation(PEPROCESS Process,
+ PPROCESS_DEVICEMAP_INFORMATION DeviceMapInfo)
+{
+ //KIRQL OldIrql ;
+
+ /*
+ * FIXME: This is an ugly hack for now, to always return the System Device Map
+ * instead of returning the Process Device Map. Not important yet since we don't use it
+ */
+
+ /* FIXME: Acquire the DeviceMap Spinlock */
+ // KeAcquireSpinLock(DeviceMap->Lock, &OldIrql);
+
+ /* Make a copy */
+ DeviceMapInfo->Query.DriveMap = ObSystemDeviceMap->DriveMap;
+ RtlMoveMemory(DeviceMapInfo->Query.DriveType, ObSystemDeviceMap->DriveType, sizeof(ObSystemDeviceMap->DriveType));
+
+ /* FIXME: Release the DeviceMap Spinlock */
+ // KeReleasepinLock(DeviceMap->Lock, OldIrql);
+}
+
+VOID
+ObpAddEntryDirectory(PDIRECTORY_OBJECT Parent,
+ POBJECT_HEADER Header,
+ PWSTR Name)
/*
* FUNCTION: Add an entry to a namespace directory
* ARGUMENTS:
- * parent = directory to add in
- * name = Name to give the entry
- * Object = Header of the object to add the entry for
+ * Parent = directory to add in
+ * Header = Header of the object to add the entry for
+ * Name = Name to give the entry
*/
{
- KIRQL oldlvl;
- POBJECT_HEADER Header = BODY_TO_HEADER(Object);
-
- RtlInitUnicodeString(&Header->Name, wcsdup(Name));
- Header->Parent = Parent;
-
- KeAcquireSpinLock(&Parent->Lock, &oldlvl);
- InsertTailList(&Parent->head, &Header->Entry);
- KeReleaseSpinLock(&Parent->Lock, oldlvl);
+ KIRQL oldlvl;
+
+ RtlpCreateUnicodeString(&Header->Name, Name, NonPagedPool);
+ Header->Parent = Parent;
+
+ KeAcquireSpinLock(&Parent->Lock, &oldlvl);
+ InsertTailList(&Parent->head, &Header->Entry);
+ KeReleaseSpinLock(&Parent->Lock, oldlvl);
+}
+
+
+VOID
+ObpRemoveEntryDirectory(POBJECT_HEADER Header)
+/*
+ * FUNCTION: Remove an entry from a namespace directory
+ * ARGUMENTS:
+ * Header = Header of the object to remove
+ */
+{
+ KIRQL oldlvl;
+
+ DPRINT("ObpRemoveEntryDirectory(Header %x)\n",Header);
+
+ KeAcquireSpinLock(&(Header->Parent->Lock),&oldlvl);
+ RemoveEntryList(&(Header->Entry));
+ KeReleaseSpinLock(&(Header->Parent->Lock),oldlvl);
}
-PVOID ObpFindEntryDirectory(PDIRECTORY_OBJECT DirectoryObject,
- PWSTR Name,
- ULONG Attributes)
+
+PVOID
+ObpFindEntryDirectory(PDIRECTORY_OBJECT DirectoryObject,
+ PWSTR Name,
+ ULONG Attributes)
{
PLIST_ENTRY current = DirectoryObject->head.Flink;
POBJECT_HEADER current_obj;
- DPRINT("ObDirLookup(dir %x, name %w)\n",DirectoryObject, Name);
+ DPRINT("ObFindEntryDirectory(dir %x, name %S)\n",DirectoryObject, Name);
if (Name[0]==0)
{
while (current!=(&(DirectoryObject->head)))
{
current_obj = CONTAINING_RECORD(current,OBJECT_HEADER,Entry);
- DPRINT("Scanning %w %w\n",current_obj->Name.Buffer, Name);
+ DPRINT(" Scanning: %S for: %S\n",current_obj->Name.Buffer, Name);
if (Attributes & OBJ_CASE_INSENSITIVE)
{
- if (wcsicmp(current_obj->Name.Buffer, Name)==0)
+ if (_wcsicmp(current_obj->Name.Buffer, Name)==0)
{
DPRINT("Found it %x\n",HEADER_TO_BODY(current_obj));
return(HEADER_TO_BODY(current_obj));
}
current = current->Flink;
}
- DPRINT("%s() = NULL\n",__FUNCTION__);
+ DPRINT(" Not Found: %s() = NULL\n",__FUNCTION__);
return(NULL);
-
}
-PVOID ObpParseDirectory(PVOID Object, PWSTR* Path)
+
+NTSTATUS STDCALL
+ObpParseDirectory(PVOID Object,
+ PVOID * NextObject,
+ PUNICODE_STRING FullPath,
+ PWSTR * Path,
+ ULONG Attributes)
{
- PWSTR end;
- PVOID FoundObject;
-
- DPRINT("ObpParseDirectory(Object %x, Path %x, *Path %w)\n",
- Object,Path,*Path);
-
- if ((*Path) == NULL)
- {
- return(NULL);
- }
-
- end = wcschr((*Path)+1, '\\');
- if (end != NULL)
- {
- *end = 0;
- }
+ PWSTR Start;
+ PWSTR End;
+ PVOID FoundObject;
- FoundObject = ObpFindEntryDirectory(Object, (*Path)+1, 0);
-
- if (FoundObject == NULL)
- {
- if (end != NULL)
- {
- *end = '\\';
- }
- return(NULL);
- }
-
- ObReferenceObjectByPointer(FoundObject,
- STANDARD_RIGHTS_REQUIRED,
- NULL,
- UserMode);
-
- if (end != NULL)
- {
- *end = '\\';
- *Path = end;
- }
- else
- {
- *Path = NULL;
- }
-
- return(FoundObject);
+ DPRINT("ObpParseDirectory(Object %x, Path %x, *Path %S)\n",
+ Object,Path,*Path);
+
+ *NextObject = NULL;
+
+ if ((*Path) == NULL)
+ {
+ return STATUS_UNSUCCESSFUL;
+ }
+
+ Start = *Path;
+ if (*Start == L'\\')
+ Start++;
+
+ End = wcschr(Start, L'\\');
+ if (End != NULL)
+ {
+ *End = 0;
+ }
+
+ FoundObject = ObpFindEntryDirectory(Object, Start, Attributes);
+ if (FoundObject == NULL)
+ {
+ if (End != NULL)
+ {
+ *End = L'\\';
+ }
+ return STATUS_UNSUCCESSFUL;
+ }
+
+ ObReferenceObjectByPointer(FoundObject,
+ STANDARD_RIGHTS_REQUIRED,
+ NULL,
+ UserMode);
+
+ if (End != NULL)
+ {
+ *End = L'\\';
+ *Path = End;
+ }
+ else
+ {
+ *Path = NULL;
+ }
+
+ *NextObject = FoundObject;
+
+ return STATUS_SUCCESS;
}
-NTSTATUS ObpCreateDirectory(PVOID ObjectBody,
- PVOID Parent,
- PWSTR RemainingPath,
- POBJECT_ATTRIBUTES ObjectAttributes)
+
+NTSTATUS STDCALL
+ObpCreateDirectory(PVOID ObjectBody,
+ PVOID Parent,
+ PWSTR RemainingPath,
+ POBJECT_ATTRIBUTES ObjectAttributes)
{
- PDIRECTORY_OBJECT DirectoryObject = (PDIRECTORY_OBJECT)ObjectBody;
-
- DPRINT("ObpCreateDirectory(ObjectBody %x, Parent %x, RemainingPath %w)\n",
- ObjectBody, Parent, RemainingPath);
-
- if (RemainingPath != NULL && wcschr(RemainingPath+1, '\\') != NULL)
- {
- return(STATUS_UNSUCCESSFUL);
- }
-
- if (Parent != NULL && RemainingPath != NULL)
- {
- ObAddEntryDirectory(Parent, ObjectBody, RemainingPath+1);
- }
- InitializeListHead(&DirectoryObject->head);
- KeInitializeSpinLock(&DirectoryObject->Lock);
- return(STATUS_SUCCESS);
+ PDIRECTORY_OBJECT DirectoryObject = (PDIRECTORY_OBJECT)ObjectBody;
+
+ DPRINT("ObpCreateDirectory(ObjectBody %x, Parent %x, RemainingPath %S)\n",
+ ObjectBody, Parent, RemainingPath);
+
+ if (RemainingPath != NULL && wcschr(RemainingPath+1, '\\') != NULL)
+ {
+ return(STATUS_UNSUCCESSFUL);
+ }
+
+ InitializeListHead(&DirectoryObject->head);
+ KeInitializeSpinLock(&DirectoryObject->Lock);
+
+ return(STATUS_SUCCESS);
}
-VOID ObInit(VOID)
+
+VOID INIT_FUNCTION
+ObInit(VOID)
/*
* FUNCTION: Initialize the object manager namespace
*/
{
- ANSI_STRING AnsiString;
-
- ObDirectoryType = ExAllocatePool(NonPagedPool,sizeof(OBJECT_TYPE));
-
- ObDirectoryType->TotalObjects = 0;
- ObDirectoryType->TotalHandles = 0;
- ObDirectoryType->MaxObjects = ULONG_MAX;
- ObDirectoryType->MaxHandles = ULONG_MAX;
- ObDirectoryType->PagedPoolCharge = 0;
- ObDirectoryType->NonpagedPoolCharge = sizeof(DIRECTORY_OBJECT);
- ObDirectoryType->Dump = NULL;
- ObDirectoryType->Open = NULL;
- ObDirectoryType->Close = NULL;
- ObDirectoryType->Delete = NULL;
- ObDirectoryType->Parse = ObpParseDirectory;
- ObDirectoryType->Security = NULL;
- ObDirectoryType->QueryName = NULL;
- ObDirectoryType->OkayToClose = NULL;
- ObDirectoryType->Create = ObpCreateDirectory;
-
- RtlInitAnsiString(&AnsiString,"Directory");
- RtlAnsiStringToUnicodeString(&ObDirectoryType->TypeName,
- &AnsiString,TRUE);
-
- NameSpaceRoot = ObCreateObject(NULL,
- STANDARD_RIGHTS_REQUIRED,
- NULL,
- ObDirectoryType);
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ UNICODE_STRING Name;
+ SECURITY_DESCRIPTOR SecurityDescriptor;
+
+ /* Initialize the security descriptor cache */
+ ObpInitSdCache();
+
+ /* create 'directory' object type */
+ ObDirectoryType = ExAllocatePool(NonPagedPool,sizeof(OBJECT_TYPE));
+
+ ObDirectoryType->Tag = TAG('D', 'I', 'R', 'T');
+ ObDirectoryType->TotalObjects = 0;
+ ObDirectoryType->TotalHandles = 0;
+ ObDirectoryType->PeakObjects = 0;
+ ObDirectoryType->PeakHandles = 0;
+ ObDirectoryType->PagedPoolCharge = 0;
+ ObDirectoryType->NonpagedPoolCharge = sizeof(DIRECTORY_OBJECT);
+ ObDirectoryType->Mapping = &ObpDirectoryMapping;
+ ObDirectoryType->Dump = NULL;
+ ObDirectoryType->Open = NULL;
+ ObDirectoryType->Close = NULL;
+ ObDirectoryType->Delete = NULL;
+ ObDirectoryType->Parse = ObpParseDirectory;
+ ObDirectoryType->Security = NULL;
+ ObDirectoryType->QueryName = NULL;
+ ObDirectoryType->OkayToClose = NULL;
+ ObDirectoryType->Create = ObpCreateDirectory;
+ ObDirectoryType->DuplicationNotify = NULL;
+
+ RtlInitUnicodeString(&ObDirectoryType->TypeName,
+ L"Directory");
+
+ /* create 'type' object type*/
+ ObTypeObjectType = ExAllocatePool(NonPagedPool,sizeof(OBJECT_TYPE));
+
+ ObTypeObjectType->Tag = TAG('T', 'y', 'p', 'T');
+ ObTypeObjectType->TotalObjects = 0;
+ ObTypeObjectType->TotalHandles = 0;
+ ObTypeObjectType->PeakObjects = 0;
+ ObTypeObjectType->PeakHandles = 0;
+ ObTypeObjectType->PagedPoolCharge = 0;
+ ObTypeObjectType->NonpagedPoolCharge = sizeof(TYPE_OBJECT);
+ ObTypeObjectType->Mapping = &ObpTypeMapping;
+ ObTypeObjectType->Dump = NULL;
+ ObTypeObjectType->Open = NULL;
+ ObTypeObjectType->Close = NULL;
+ ObTypeObjectType->Delete = NULL;
+ ObTypeObjectType->Parse = NULL;
+ ObTypeObjectType->Security = NULL;
+ ObTypeObjectType->QueryName = NULL;
+ ObTypeObjectType->OkayToClose = NULL;
+ ObTypeObjectType->Create = NULL;
+ ObTypeObjectType->DuplicationNotify = NULL;
+
+ RtlInitUnicodeString(&ObTypeObjectType->TypeName,
+ L"ObjectType");
+
+ /* Create security descriptor */
+ RtlCreateSecurityDescriptor(&SecurityDescriptor,
+ SECURITY_DESCRIPTOR_REVISION1);
+
+ RtlSetOwnerSecurityDescriptor(&SecurityDescriptor,
+ SeAliasAdminsSid,
+ FALSE);
+
+ RtlSetGroupSecurityDescriptor(&SecurityDescriptor,
+ SeLocalSystemSid,
+ FALSE);
+
+ RtlSetDaclSecurityDescriptor(&SecurityDescriptor,
+ TRUE,
+ SePublicDefaultDacl,
+ FALSE);
+
+ /* Create root directory */
+ InitializeObjectAttributes(&ObjectAttributes,
+ NULL,
+ OBJ_PERMANENT,
+ NULL,
+ &SecurityDescriptor);
+ ObCreateObject(KernelMode,
+ ObDirectoryType,
+ &ObjectAttributes,
+ KernelMode,
+ NULL,
+ sizeof(DIRECTORY_OBJECT),
+ 0,
+ 0,
+ (PVOID*)&NameSpaceRoot);
+
+ /* Create '\ObjectTypes' directory */
+ RtlRosInitUnicodeStringFromLiteral(&Name,
+ L"\\ObjectTypes");
+ InitializeObjectAttributes(&ObjectAttributes,
+ &Name,
+ OBJ_PERMANENT,
+ NULL,
+ &SecurityDescriptor);
+ ObCreateObject(KernelMode,
+ ObDirectoryType,
+ &ObjectAttributes,
+ KernelMode,
+ NULL,
+ sizeof(DIRECTORY_OBJECT),
+ 0,
+ 0,
+ NULL);
+
+ ObpCreateTypeObject(ObDirectoryType);
+ ObpCreateTypeObject(ObTypeObjectType);
+
+ /* Create 'symbolic link' object type */
+ ObInitSymbolicLinkImplementation();
+
+ /* FIXME: Hack Hack! */
+ ObSystemDeviceMap = ExAllocatePoolWithTag(NonPagedPool, sizeof(*ObSystemDeviceMap), TAG('O', 'b', 'D', 'm'));
+ RtlZeroMemory(ObSystemDeviceMap, sizeof(*ObSystemDeviceMap));
}
-VOID ObRemoveEntry(POBJECT_HEADER Header)
+
+NTSTATUS
+ObpCreateTypeObject(POBJECT_TYPE ObjectType)
{
- KIRQL oldlvl;
-
- DPRINT("ObRemoveEntry(Header %x)\n",Header);
-
- KeAcquireSpinLock(&(Header->Parent->Lock),&oldlvl);
- RemoveEntryList(&(Header->Entry));
- KeReleaseSpinLock(&(Header->Parent->Lock),oldlvl);
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ WCHAR NameString[120];
+ PTYPE_OBJECT TypeObject = NULL;
+ UNICODE_STRING Name;
+ NTSTATUS Status;
+
+ DPRINT("ObpCreateTypeObject(ObjectType: %wZ)\n", &ObjectType->TypeName);
+ wcscpy(NameString, L"\\ObjectTypes\\");
+ wcscat(NameString, ObjectType->TypeName.Buffer);
+ RtlInitUnicodeString(&Name,
+ NameString);
+
+ InitializeObjectAttributes(&ObjectAttributes,
+ &Name,
+ OBJ_PERMANENT,
+ NULL,
+ NULL);
+ Status = ObCreateObject(KernelMode,
+ ObTypeObjectType,
+ &ObjectAttributes,
+ KernelMode,
+ NULL,
+ sizeof(TYPE_OBJECT),
+ 0,
+ 0,
+ (PVOID*)&TypeObject);
+ if (NT_SUCCESS(Status))
+ {
+ TypeObject->ObjectType = ObjectType;
+ }
+
+ return(STATUS_SUCCESS);
}
+/* EOF */
projects / reactos.git / blobdiff