include/ddk/ntifs.h

   1 #ifndef __INCLUDE_DDK_NTIFS_H
   2 #define __INCLUDE_DDK_NTIFS_H
   3
   4 struct _BCB;
   5
   6 NTSTATUS STDCALL
   7 CcRosInitializeFileCache (PFILE_OBJECT  FileObject,
   8                           struct _BCB** Bcb,
   9                           ULONG         CacheSegmentSize);
  10 NTSTATUS STDCALL
  11 CcRosReleaseFileCache (PFILE_OBJECT     FileObject,
  12                        struct _BCB*     Bcb);
  13
  14 #include <ddk/cctypes.h>
  15
  16 #include <ddk/ccfuncs.h>
  17
  18 #include <ddk/fstypes.h>
  19 #include <ddk/fsfuncs.h>
  20
  21 typedef struct _FSRTL_COMMON_FCB_HEADER
  22 {
  23     CSHORT NodeTypeCode;
  24     CSHORT NodeByteSize;
  25     UCHAR Flags;
  26     UCHAR IsFastIoPossible; // really type FAST_IO_POSSIBLE
  27     UCHAR Flags2;
  28     UCHAR Reserved;     /* always 0 */
  29     PERESOURCE Resource;
  30     PERESOURCE PagingIoResource;
  31     LARGE_INTEGER AllocationSize;
  32     LARGE_INTEGER FileSize;
  33     LARGE_INTEGER ValidDataLength;
  34 } FSRTL_COMMON_FCB_HEADER;
  35 typedef FSRTL_COMMON_FCB_HEADER *PFSRTL_COMMON_FCB_HEADER;
  36
  37 //  This Fcb header is used for files which support caching
  38 //  of compressed data, and related new support.
  39
  40 typedef struct _FSRTL_ADVANCED_FCB_HEADER
  41 {
  42     FSRTL_COMMON_FCB_HEADER common_fcb_header;
  43
  44     //  The following two fields are supported only if
  45     //  Flags2 contains FSRTL_FLAG2_SUPPORTS_FILTER_CONTEXTS
  46     //
  47     //  This is a pointer to a Fast Mutex which may be used to
  48     //  properly synchronize access to the FsRtl header.  The
  49     //  Fast Mutex must be nonpaged.
  50     PFAST_MUTEX FastMutex;
  51
  52     // This is a pointer to a list of context structures belonging to
  53     // filesystem filter drivers that are linked above the filesystem.
  54     // Each structure is headed by FSRTL_FILTER_CONTEXT.
  55     LIST_ENTRY FilterContexts;
  56 } FSRTL_ADVANCED_FCB_HEADER;
  57 typedef FSRTL_ADVANCED_FCB_HEADER *PFSRTL_ADVANCED_FCB_HEADER;
  58
  59 #endif /* __INCLUDE_DDK_NTIFS_H */