- Fix DbgkSectionHandleToFileHandle.

- Implement MmGetFileNameForSection.
- There is a bug in ObQueryNameString for file objects, so the full name isn't returned...

svn path=/trunk/; revision=24985

reactos/ntoskrnl/dbgk/dbgkutil.c

@@ -19,7 +19,7 @@ NTAPI
 DbgkpSectionToFileHandle(IN PVOID Section)
 {
     NTSTATUS Status;
-    UNICODE_STRING FileName;
+    POBJECT_NAME_INFORMATION FileName;
     OBJECT_ATTRIBUTES ObjectAttributes;
     IO_STATUS_BLOCK IoStatusBlock;
     HANDLE Handle;
@@ -31,7 +31,7 @@ DbgkpSectionToFileHandle(IN PVOID Section)
 
     /* Initialize object attributes */
     InitializeObjectAttributes(&ObjectAttributes,
-                               &FileName,
+                               &FileName->Name,
                                OBJ_CASE_INSENSITIVE |
                                OBJ_FORCE_ACCESS_CHECK |
                                OBJ_KERNEL_HANDLE,
@@ -39,15 +39,17 @@ DbgkpSectionToFileHandle(IN PVOID Section)
                                NULL);
 
     /* Open the file */
+    DPRINT1("Trying to open: %wZ\n", &FileName->Name);
     Status = ZwOpenFile(&Handle,
                         GENERIC_READ | SYNCHRONIZE,
                         &ObjectAttributes,
                         &IoStatusBlock,
                         FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
                         FILE_SYNCHRONOUS_IO_NONALERT);
+    DPRINT1("Status: %lx\n", Status);
 
     /* Free the name and return the handle if we succeeded */
-    ExFreePool(FileName.Buffer);
+    ExFreePool(FileName);
     if (!NT_SUCCESS(Status)) return NULL;
     return Handle;
 }
@@ -91,7 +93,8 @@ DbgkCreateThread(PVOID StartAddress)
     ULONG ProcessFlags;
     IMAGE_INFO ImageInfo;
     PIMAGE_NT_HEADERS NtHeader;
-    UNICODE_STRING ModuleName;
+    POBJECT_NAME_INFORMATION ModuleName;
+    UNICODE_STRING NtDllName;
     NTSTATUS Status;
     PVOID DebugPort;
     DBGKM_MSG ApiMessage;
@@ -130,10 +133,10 @@ DbgkCreateThread(PVOID StartAddress)
         if (NT_SUCCESS(Status))
         {
             /* Call the notify routines and free the name */
-            PspRunLoadImageNotifyRoutines(&ModuleName,
+            PspRunLoadImageNotifyRoutines(&ModuleName->Name,
                                           Process->UniqueProcessId,
                                           &ImageInfo);
-            ExFreePool(ModuleName.Buffer);
+            ExFreePool(ModuleName);
         }
         else
         {
@@ -160,9 +163,9 @@ DbgkCreateThread(PVOID StartAddress)
         }
 
         /* Call the notify routines */
-        RtlInitUnicodeString(&ModuleName,
+        RtlInitUnicodeString(&NtDllName,
                              L"\\SystemRoot\\System32\\ntdll.dll");
-        PspRunLoadImageNotifyRoutines(&ModuleName,
+        PspRunLoadImageNotifyRoutines(&NtDllName,
                                       Process->UniqueProcessId,
                                       &ImageInfo);
     }

reactos/ntoskrnl/dbgk/debug.c

@@ -653,14 +653,17 @@ DbgkpPostFakeThreadMessages(IN PEPROCESS Process,
         if (First)
         {
             /* So we'll start with the create process message */
+            DPRINT1("new proces!\n");
             ApiMessage.ApiNumber = DbgKmCreateProcessApi;
 
             /* Get the file handle */
+            DPRINT1("section object: %p\n", Process->SectionObject);
             if (Process->SectionObject)
             {
                 /* Use the section object */
                 CreateProcess->FileHandle =
                     DbgkpSectionToFileHandle(Process->SectionObject);
+                DPRINT1("FileHandle: %p\n", CreateProcess->FileHandle);
             }
             else
             {
@@ -669,7 +672,9 @@ DbgkpPostFakeThreadMessages(IN PEPROCESS Process,
             }
 
             /* Set the base address */
+            DPRINT1("SectionBaseAddress: %p\n", Process->SectionBaseAddress);
             CreateProcess->BaseOfImage = Process->SectionBaseAddress;
+            KEBUGCHECK(0);
 
             /* Get the NT Header */
             NtHeader = RtlImageNtHeader(Process->SectionBaseAddress);

reactos/ntoskrnl/include/internal/mm.h

@@ -1326,7 +1326,7 @@ NTSTATUS
 NTAPI
 MmGetFileNameForSection(
     IN PROS_SECTION_OBJECT Section,
-    OUT PUNICODE_STRING ModuleName
+    OUT POBJECT_NAME_INFORMATION *ModuleName
 );
 
 PVOID 

reactos/ntoskrnl/mm/section.c

@@ -109,10 +109,40 @@ MmGetFileObjectForSection(IN PROS_SECTION_OBJECT Section)
 NTSTATUS
 NTAPI
 MmGetFileNameForSection(IN PROS_SECTION_OBJECT Section,
-                        OUT PUNICODE_STRING ModuleName)
+                        OUT POBJECT_NAME_INFORMATION *ModuleName)
 {
-    /* FIXME: TODO. ObQueryNameString on the FileObject */
-    RtlCreateUnicodeString(ModuleName, L"C:\\ReactOS\\system32\\ntdll.dll");
+    POBJECT_NAME_INFORMATION ObjectNameInfo;
+    NTSTATUS Status;
+    ULONG ReturnLength;
+
+    /* Make sure it's an image section */
+    *ModuleName = NULL;
+    if (!(Section->AllocationAttributes & SEC_IMAGE))
+    {
+        /* It's not, fail */
+        return STATUS_SECTION_NOT_IMAGE;
+    }
+
+    /* Allocate memory for our structure */
+    ObjectNameInfo = ExAllocatePoolWithTag(PagedPool,
+                                           1024,
+                                           TAG('M', 'm', ' ', ' '));
+    if (!ObjectNameInfo) return STATUS_NO_MEMORY;
+
+    /* Query the name */
+    Status = ObQueryNameString(Section->FileObject,
+                               ObjectNameInfo,
+                               1024,
+                               &ReturnLength);
+    if (!NT_SUCCESS(Status))
+    {
+        /* Failed, free memory */
+        ExFreePool(ObjectNameInfo);
+        return Status;
+    }
+
+    /* Success */
+    *ModuleName = ObjectNameInfo;
     return STATUS_SUCCESS;
 }