From 1bd9c09d22e114b2db9c0529f0253b02788173c5 Mon Sep 17 00:00:00 2001
From: Bill Zissimopoulos <billziss@navimatics.com>
Date: Thu, 24 Dec 2015 12:10:17 -0800
Subject: [PATCH] Major refactoring: IRP_MJ_CREATE

---
 src/sys/create.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/sys/create.c b/src/sys/create.c
index 512426df..3617847a 100644
--- a/src/sys/create.c
+++ b/src/sys/create.c
@@ -290,6 +290,21 @@ NTSTATUS FspFsvolCreatePrepare(
 {
     PAGED_CODE();
 
+    NTSTATUS Result;
+    PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
+    PACCESS_STATE AccessState = IrpSp->Parameters.Create.SecurityContext->AccessState;
+    HANDLE UserModeAccessToken;
+
+    /* get a user-mode handle to the access token */
+    Result = ObOpenObjectByPointer(SeQuerySubjectContextToken(&AccessState->SubjectSecurityContext),
+        0, 0, TOKEN_QUERY, *SeTokenObjectType, UserMode, &UserModeAccessToken);
+    if (!NT_SUCCESS(Result))
+        return Result;
+
+    /* send the user-mode handle to the user-mode file system */
+    FspIopRequestContext(Request, RequestAccessToken) = UserModeAccessToken;
+    Request->Req.Create.AccessToken = (UINT_PTR)UserModeAccessToken;
+
     return STATUS_SUCCESS;
 }