include/ddk/ntifs.h

   1 #ifndef __INCLUDE_DDK_NTIFS_H
   2 #define __INCLUDE_DDK_NTIFS_H
   3
   4 struct _BCB;
   5
   6 typedef struct _BCB* PBCB;
   7
   8 struct _MEMORY_AREA;
   9
  10 struct _CACHE_SEGMENT;
  11
  12 typedef struct _CACHE_SEGMENT* PCACHE_SEGMENT;
  13
  14 NTSTATUS STDCALL
  15 CcRosReleaseCacheSegment (struct _BCB*          Bcb,
  16                           struct _CACHE_SEGMENT*        CacheSeg,
  17                           BOOLEAN               Valid,
  18                           BOOLEAN Dirty,
  19                           BOOLEAN Mapped);
  20 NTSTATUS STDCALL
  21 CcRosRequestCacheSegment (struct _BCB*          Bcb,
  22                        ULONG            FileOffset,
  23                        PVOID* BaseAddress,
  24                        PBOOLEAN UptoDate,
  25                        struct _CACHE_SEGMENT** CacheSeg);
  26 NTSTATUS STDCALL
  27 CcRosInitializeFileCache (PFILE_OBJECT  FileObject,
  28                        struct _BCB** Bcb,
  29                        ULONG CacheSegmentSize);
  30 NTSTATUS STDCALL
  31 CcRosReleaseFileCache (PFILE_OBJECT     FileObject,
  32                     struct _BCB*                Bcb);
  33
  34 #include <ddk/cctypes.h>
  35
  36 #include <ddk/ccfuncs.h>
  37
  38 #include <ddk/fstypes.h>
  39 #include <ddk/fsfuncs.h>
  40
  41 typedef struct _FSRTL_COMMON_FCB_HEADER
  42 {
  43     CSHORT NodeTypeCode;
  44     CSHORT NodeByteSize;
  45     UCHAR Flags;
  46     UCHAR IsFastIoPossible; // really type FAST_IO_POSSIBLE
  47     UCHAR Flags2;
  48     UCHAR Reserved;     /* always 0 */
  49     PERESOURCE Resource;
  50     PERESOURCE PagingIoResource;
  51     LARGE_INTEGER AllocationSize;
  52     LARGE_INTEGER FileSize;
  53     LARGE_INTEGER ValidDataLength;
  54 } FSRTL_COMMON_FCB_HEADER;
  55 typedef FSRTL_COMMON_FCB_HEADER *PFSRTL_COMMON_FCB_HEADER;
  56
  57 //  This Fcb header is used for files which support caching
  58 //  of compressed data, and related new support.
  59
  60 typedef struct _FSRTL_ADVANCED_FCB_HEADER
  61 {
  62     FSRTL_COMMON_FCB_HEADER common_fcb_header;
  63
  64     //  The following two fields are supported only if
  65     //  Flags2 contains FSRTL_FLAG2_SUPPORTS_FILTER_CONTEXTS
  66     //
  67     //  This is a pointer to a Fast Mutex which may be used to
  68     //  properly synchronize access to the FsRtl header.  The
  69     //  Fast Mutex must be nonpaged.
  70     PFAST_MUTEX FastMutex;
  71
  72     // This is a pointer to a list of context structures belonging to
  73     // filesystem filter drivers that are linked above the filesystem.
  74     // Each structure is headed by FSRTL_FILTER_CONTEXT.
  75     LIST_ENTRY FilterContexts;
  76 } FSRTL_ADVANCED_FCB_HEADER;
  77 typedef FSRTL_ADVANCED_FCB_HEADER *PFSRTL_ADVANCED_FCB_HEADER;
  78
  79 #endif /* __INCLUDE_DDK_NTIFS_H */