drivers/filters/fltmgr/Context.c

   1 /*
   2 * PROJECT:         Filesystem Filter Manager
   3 * LICENSE:         GPL - See COPYING in the top level directory
   4 * FILE:            drivers/filters/fltmgr/Context.c
   5 * PURPOSE:         Contains context routines
   6 * PROGRAMMERS:     Ged Murphy (gedmurphy@reactos.org)
   7 */
   8
   9 /* INCLUDES ******************************************************************/
  10
  11 #include "fltmgr.h"
  12 #include "fltmgrint.h"
  13
  14 #define NDEBUG
  15 #include <debug.h>
  16
  17
  18 /* DATA *********************************************************************/
  19
  20 static
  21 BOOLEAN
  22 IsContextTypeValid(
  23     _In_ FLT_CONTEXT_TYPE ContextType
  24 );
  25
  26 static
  27 NTSTATUS
  28 SetupContextHeader(
  29     _In_ PFLT_FILTER Filter,
  30     _In_ PFLT_CONTEXT_REGISTRATION ContextPtr,
  31     _Out_ PALLOCATE_CONTEXT_HEADER ContextHeader
  32 );
  33
  34 /* EXPORTED FUNCTIONS ******************************************************/
  35
  36
  37
  38
  39 /* INTERNAL FUNCTIONS ******************************************************/
  40
  41
  42 NTSTATUS
  43 FltpRegisterContexts(_In_ PFLT_FILTER Filter,
  44                      _In_ const FLT_CONTEXT_REGISTRATION *Context)
  45 {
  46     UNREFERENCED_PARAMETER(Filter);
  47     UNREFERENCED_PARAMETER(Context);
  48     return STATUS_NOT_IMPLEMENTED;
  49 }
  50
  51
  52 /* PRIVATE FUNCTIONS ******************************************************/
  53
  54 static
  55 BOOLEAN
  56 IsContextTypeValid(_In_ FLT_CONTEXT_TYPE ContextType)
  57 {
  58     switch (ContextType)
  59     {
  60     case FLT_VOLUME_CONTEXT:
  61     case FLT_INSTANCE_CONTEXT:
  62     case FLT_FILE_CONTEXT:
  63     case FLT_STREAM_CONTEXT:
  64     case FLT_STREAMHANDLE_CONTEXT:
  65     case FLT_TRANSACTION_CONTEXT:
  66         return TRUE;
  67     }
  68
  69     return FALSE;
  70 }
  71
  72 static
  73 NTSTATUS
  74 SetupContextHeader(_In_ PFLT_FILTER Filter,
  75                    _In_ PFLT_CONTEXT_REGISTRATION ContextPtr,
  76                    _Out_ PALLOCATE_CONTEXT_HEADER ContextHeader)
  77 {
  78     return 0;
  79 }