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[NTOSKRNL]: Implement NtSetInformationObject(ObjectSessionInformation).

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[NTOSKRNL]: Implement NtQueryInformationProcess(ProcessLUIDDeviceMapsEnabled).

svn path=/trunk/; revision=55603
This commit is contained in:
Alex Ionescu 2012-02-15 06:48:39 +00:00
parent 95bb53eb1a
commit a371650c63
3 changed files with 146 additions and 81 deletions
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7
reactos/include/ndk/psfuncs.h
View file

@ -137,6 +137,13 @@ PsReturnProcessNonPagedPoolQuota(
IN SIZE_T Amount
);
NTKERNELAPI
ULONG
NTAPI
PsGetCurrentProcessSessionId(
VOID
);
//
// Process Impersonation Functions
//

195
reactos/ntoskrnl/ob/oblife.c
View file

@ -1605,7 +1605,7 @@ NtQueryObject(IN HANDLE ObjectHandle,
_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 @@ NtSetInformationObject(IN HANDLE ObjectHandle,
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)
switch (ObjectInformationClass)
{
/* Invalid class */
return STATUS_INVALID_INFO_CLASS;
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;
}
/* 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);
return Status;
}

25
reactos/ntoskrnl/ps/query.c
View file

@ -835,8 +835,29 @@ NtQueryInformationProcess(IN HANDLE ProcessHandle,
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: