[ros-diffs] [ion] 55603: [NTOSKRNL]: Implement NtSetInformationObject(ObjectSessionInformation). [NTOSKRNL]: Implement NtQueryInformationProcess(ProcessLUIDDeviceMapsEnabled).

Author: ion
Date: Wed Feb 15 06:48:39 2012
New Revision: 55603

URL: http://svn.reactos.org/svn/reactos?rev=55603&view=rev
Log:
[NTOSKRNL]: Implement NtSetInformationObject(ObjectSessionInformation).
[NTOSKRNL]: Implement NtQueryInformationProcess(ProcessLUIDDeviceMapsEnabled).

Modified:
    trunk/reactos/include/ndk/psfuncs.h
    trunk/reactos/ntoskrnl/ob/oblife.c
    trunk/reactos/ntoskrnl/ps/query.c

Modified: trunk/reactos/include/ndk/psfuncs.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/ndk/psfuncs.h?rev=…
==============================================================================
--- trunk/reactos/include/ndk/psfuncs.h [iso-8859-1] (original)
+++ trunk/reactos/include/ndk/psfuncs.h [iso-8859-1] Wed Feb 15 06:48:39 2012
@@ -137,6 +137,13 @@
     IN SIZE_T    Amount
 );
 
+NTKERNELAPI
+ULONG
+NTAPI
+PsGetCurrentProcessSessionId(
+    VOID
+);
+    
 //
 // Process Impersonation Functions
 //

Modified: trunk/reactos/ntoskrnl/ob/oblife.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ob/oblife.c?rev=5…
==============================================================================
--- trunk/reactos/ntoskrnl/ob/oblife.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ob/oblife.c [iso-8859-1] Wed Feb 15 06:48:39 2012
@@ -1605,7 +1605,7 @@
     _SEH2_END;
 
     /* Dereference the object if we had referenced it */
-    if (Object) ObDereferenceObject (Object);
+    if (Object) ObDereferenceObject(Object);
 
     /* Return status */
     return Status;
@@ -1645,91 +1645,128 @@
     OBP_SET_HANDLE_ATTRIBUTES_CONTEXT Context;
     PVOID ObjectTable;
     KAPC_STATE ApcState;
+    POBJECT_DIRECTORY Directory;
+    KPROCESSOR_MODE PreviousMode;
     BOOLEAN AttachedToProcess = FALSE;
     PAGED_CODE();
 
     /* Validate the information class */
-    if (ObjectInformationClass != ObjectHandleFlagInformation)
-    {
-        /* Invalid class */
-        return STATUS_INVALID_INFO_CLASS;
-    }
-
-    /* Validate the length */
-    if (Length != sizeof (OBJECT_HANDLE_ATTRIBUTE_INFORMATION))
-    {
-        /* Invalid length */
-        return STATUS_INFO_LENGTH_MISMATCH;
-    }
-
-    /* Save the previous mode */
-    Context.PreviousMode = ExGetPreviousMode();
-
-    /* Check if we were called from user mode */
-    if (Context.PreviousMode != KernelMode)
-    {
-        /* Enter SEH */
-        _SEH2_TRY
-        {
-            /* Probe and capture the attribute buffer */
-            ProbeForRead(ObjectInformation,
-                         sizeof(OBJECT_HANDLE_ATTRIBUTE_INFORMATION),
-                         sizeof(BOOLEAN));
-            Context.Information = *(POBJECT_HANDLE_ATTRIBUTE_INFORMATION)
-                                    ObjectInformation;
-        }
-        _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
-        {
-            /* Return the exception code */
-            _SEH2_YIELD(return _SEH2_GetExceptionCode());
-        }
-        _SEH2_END;
-    }
-    else
-    {
-        /* Just copy the buffer directly */
-        Context.Information = *(POBJECT_HANDLE_ATTRIBUTE_INFORMATION)
-                                ObjectInformation;
-    }
-
-    /* Check if this is a kernel handle */
-    if (ObIsKernelHandle(ObjectHandle, Context.PreviousMode))
-    {
-        /* Get the actual handle */
-        ObjectHandle = ObKernelHandleToHandle(ObjectHandle);
-        ObjectTable = ObpKernelHandleTable;
-
-        /* Check if we're not in the system process */
-        if (PsGetCurrentProcess() != PsInitialSystemProcess)
-        {
-            /* Attach to it */
-            KeStackAttachProcess(&PsInitialSystemProcess->Pcb, &ApcState);
-            AttachedToProcess = TRUE;
-        }
-    }
-    else
-    {
-        /* Use the current table */
-        ObjectTable = PsGetCurrentProcess()->ObjectTable;
-    }
-
-    /* Change the handle attributes */
-    if (!ExChangeHandle(ObjectTable,
-                        ObjectHandle,
-                        ObpSetHandleAttributes,
-                        (ULONG_PTR)&Context))
-    {
-        /* Some failure */
-        Status = STATUS_ACCESS_DENIED;
-    }
-    else
-    {
-        /* We are done */
-        Status = STATUS_SUCCESS;
-    }
-
-    /* De-attach if we were attached, and return status */
-    if (AttachedToProcess) KeUnstackDetachProcess(&ApcState);
+    switch (ObjectInformationClass)
+    {
+        case ObjectHandleFlagInformation:
+        
+            /* Validate the length */
+            if (Length != sizeof(OBJECT_HANDLE_ATTRIBUTE_INFORMATION))
+            {
+                /* Invalid length */
+                return STATUS_INFO_LENGTH_MISMATCH;
+            }
+            
+            /* Save the previous mode */
+            Context.PreviousMode = ExGetPreviousMode();
+
+            /* Check if we were called from user mode */
+            if (Context.PreviousMode != KernelMode)
+            {
+                /* Enter SEH */
+                _SEH2_TRY
+                {
+                    /* Probe and capture the attribute buffer */
+                    ProbeForRead(ObjectInformation,
+                                 sizeof(OBJECT_HANDLE_ATTRIBUTE_INFORMATION),
+                                 sizeof(BOOLEAN));
+                    Context.Information = *(POBJECT_HANDLE_ATTRIBUTE_INFORMATION)
+                                            ObjectInformation;
+                }
+                _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+                {
+                    /* Return the exception code */
+                    _SEH2_YIELD(return _SEH2_GetExceptionCode());
+                }
+                _SEH2_END;
+            }
+            else
+            {
+                /* Just copy the buffer directly */
+                Context.Information = *(POBJECT_HANDLE_ATTRIBUTE_INFORMATION)
+                                        ObjectInformation;
+            }
+
+            /* Check if this is a kernel handle */
+            if (ObIsKernelHandle(ObjectHandle, Context.PreviousMode))
+            {
+                /* Get the actual handle */
+                ObjectHandle = ObKernelHandleToHandle(ObjectHandle);
+                ObjectTable = ObpKernelHandleTable;
+
+                /* Check if we're not in the system process */
+                if (PsGetCurrentProcess() != PsInitialSystemProcess)
+                {
+                    /* Attach to it */
+                    KeStackAttachProcess(&PsInitialSystemProcess->Pcb,
&ApcState);
+                    AttachedToProcess = TRUE;
+                }
+            }
+            else
+            {
+                /* Use the current table */
+                ObjectTable = PsGetCurrentProcess()->ObjectTable;
+            }
+
+            /* Change the handle attributes */
+            if (!ExChangeHandle(ObjectTable,
+                                ObjectHandle,
+                                ObpSetHandleAttributes,
+                                (ULONG_PTR)&Context))
+            {
+                /* Some failure */
+                Status = STATUS_ACCESS_DENIED;
+            }
+            else
+            {
+                /* We are done */
+                Status = STATUS_SUCCESS;
+            }
+
+            /* De-attach if we were attached, and return status */
+            if (AttachedToProcess) KeUnstackDetachProcess(&ApcState);
+            break;
+        
+        case ObjectSessionInformation:
+        
+            /* Only a system process can do this */
+            PreviousMode = ExGetPreviousMode();
+            if (!SeSinglePrivilegeCheck(SeTcbPrivilege, PreviousMode))
+            {
+                /* Fail */
+                DPRINT1("Privilege not held\n");
+                Status = STATUS_PRIVILEGE_NOT_HELD;
+            }
+            else
+            {
+                /* Get the object directory */
+                Status = ObReferenceObjectByHandle(ObjectHandle, 
+                                                   0, 
+                                                   ObDirectoryType,
+                                                   PreviousMode,
+                                                   (PVOID*)&Directory,
+                                                   NULL);
+                if (NT_SUCCESS(Status))
+                {
+                    /* FIXME: Missng locks */
+                    /* Set its session ID */
+                    Directory->SessionId = PsGetCurrentProcessSessionId();
+                    ObDereferenceObject(Directory);
+                }
+            }
+            break;
+        
+        default:
+            /* Unsupported class */
+            Status = STATUS_INVALID_INFO_CLASS;
+            break;
+    }
+
     return Status;
 }
 

Modified: trunk/reactos/ntoskrnl/ps/query.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ps/query.c?rev=55…
==============================================================================
--- trunk/reactos/ntoskrnl/ps/query.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ps/query.c [iso-8859-1] Wed Feb 15 06:48:39 2012
@@ -835,8 +835,29 @@
             break;
 
         case ProcessLUIDDeviceMapsEnabled:
-            DPRINT1("LUID Device Maps Not implemented: %lx\n",
ProcessInformationClass);
-            Status = STATUS_NOT_IMPLEMENTED;
+            /* Set the return length */
+            Length = sizeof(ULONG);
+            if (ProcessInformationLength != Length)
+            {
+                Status = STATUS_INFO_LENGTH_MISMATCH;
+                break;
+            }
+            
+            /* Indicate success */
+            Status = STATUS_SUCCESS;
+            
+            /* Protect write in SEH */
+            _SEH2_TRY
+            {
+                /* Return the count of handles */
+                *(PULONG)ProcessInformation = FALSE;
+            }
+            _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+            {
+                /* Get the exception code */
+                Status = _SEH2_GetExceptionCode();
+            }
+            _SEH2_END;
             break;
 
         case ProcessExecuteFlags: