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reactos/drivers/filesystems/reiserfs/inc/rfsd.h

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/*
* COPYRIGHT: GNU GENERAL PUBLIC LICENSE VERSION 2
* PROJECT: ReiserFs file system driver for Windows NT/2000/XP/Vista.
* FILE: rfsd.h
* PURPOSE: Header file: rfsd structures.
* PROGRAMMER: Mark Piper, Matt Wu, Bo Brantén.
* HOMEPAGE:
* UPDATE HISTORY:
*/
#ifndef _RFSD_HEADER_
#define _RFSD_HEADER_
#ifdef _MSC_VER
#ifndef _PREFAST_
#pragma warning(disable:4068)
#define __drv_mustHoldCriticalRegion
#endif // !_PREFAST_
#endif
/* INCLUDES *************************************************************/
#include <linux/module.h>
//#include <linux/reiserfs_fs.h> // Full ReiserFS header
#include "reiserfs.h" // Simplified ReiserFS header
#ifdef __REACTOS__
#include <ndk/rtlfuncs.h>
#include <pseh/pseh2.h>
typedef IO_STACK_LOCATION EXTENDED_IO_STACK_LOCATION, *PEXTENDED_IO_STACK_LOCATION;
#endif
typedef struct reiserfs_super_block_v1 RFSD_SUPER_BLOCK, *PRFSD_SUPER_BLOCK;
typedef struct stat_data RFSD_INODE, *PRFSD_INODE;
#define RFSD_CALLBACK(name) NTSTATUS(* name )(ULONG BlockNumber, PVOID pContext)
typedef struct block_head RFSD_BLOCK_HEAD, *PRFSD_BLOCK_HEAD; // [mark]
typedef struct reiserfs_de_head RFSD_DENTRY_HEAD, *PRFSD_DENTRY_HEAD; // [mark]
typedef struct item_head RFSD_ITEM_HEAD, *PRFSD_ITEM_HEAD; // [mark]
typedef struct reiserfs_key RFSD_KEY_ON_DISK, *PRFSD_KEY_ON_DISK;
typedef struct reiserfs_cpu_key RFSD_KEY_IN_MEMORY, *PRFSD_KEY_IN_MEMORY;
typedef struct disk_child RFSD_DISK_NODE_REF, *PRFSD_DISK_NODE_REF;
#define RFSD_NAME_LEN 255 /// Default length of buffers for filenames (although filenames may be longer)
#define SUPER_BLOCK_OFFSET REISERFS_DISK_OFFSET_IN_BYTES
#define SUPER_BLOCK_SIZE sizeof(RFSD_SUPER_BLOCK)
#define RFSD_ROOT_PARENT_ID 1 /// Part of the key for the root node
#define RFSD_ROOT_OBJECT_ID 2 /// Part of the key for the root node
#define RFSD_IS_ROOT_KEY(x) (x.k_dir_id == RFSD_ROOT_PARENT_ID && x.k_objectid == RFSD_ROOT_OBJECT_ID)
#define RFSD_IS_PTR_TO_ROOT_KEY(x) (x->k_dir_id == RFSD_ROOT_PARENT_ID && x->k_objectid == RFSD_ROOT_OBJECT_ID)
typedef short RFSD_KEY_COMPARISON;
typedef __u16 RFSD_KEY_VERSION;
#define RFSD_KEY_VERSION_1 0
#define RFSD_KEY_VERSION_2 1
#define RFSD_KEY_VERSION_UNKNOWN 7
// Results of a key comparison (as returned by CompareKeys)
#define RFSD_KEYS_MATCH 0
#define RFSD_KEY_SMALLER -1
#define RFSD_KEY_LARGER 1
#define RFSD_LEAF_BLOCK_LEVEL 1
#include <ntdddisk.h>
#pragma pack(1)
/* DEBUG ****************************************************************/
#if DBG
#define DbgBreak() DbgPrint("rfsd: breakpoint requested.\n");DbgBreakPoint()
#else
#define DbgBreak() DbgPrint("rfsd: breakpoint ignored.\n")
#endif
/* STRUCTS & CONSTS******************************************************/
#define RFSD_VERSION "0.26"
//
// Rfsd build options
//
// To build read-only driver
#define RFSD_READ_ONLY TRUE
// To support driver dynamics unload
#define RFSD_UNLOAD TRUE
// The Pool Tag
#define RFSD_POOL_TAG 'dsfR'
//
// Constants
//
#define RFSD_BLOCK_TYPES (0x04)
#define MAXIMUM_RECORD_LENGTH (0x10000)
#define SECTOR_BITS (Vcb->SectorBits)
#define SECTOR_SIZE (Vcb->DiskGeometry.BytesPerSector)
#define DEFAULT_SECTOR_SIZE (0x200)
#define READ_AHEAD_GRANULARITY (0x10000)
#define SUPER_BLOCK (Vcb->SuperBlock)
#define BLOCK_SIZE (Vcb->BlockSize)
#define BLOCK_BITS (SUPER_BLOCK->s_log_block_size + 10)
#define INODES_COUNT (Vcb->SuperBlock->s_inodes_count)
#define INODES_PER_GROUP (SUPER_BLOCK->s_inodes_per_group)
#define BLOCKS_PER_GROUP (SUPER_BLOCK->s_blocks_per_group)
#define TOTAL_BLOCKS (SUPER_BLOCK->s_blocks_count)
#define RFSD_FIRST_DATA_BLOCK (SUPER_BLOCK->s_first_data_block)
#define CEILING_ALIGNED(A, B) (((A) + (B) - 1) & (~((B) - 1)))
// The __SLINE__ macro evaluates to a string with the line of the program from which it is called.
// (Note that this requires two levels of macro indirection...)
#define __STR2__(x) #x
#define __STR1__(x) __STR2__(x)
#define __SLINE__ __STR1__(__LINE__)
/* File System Releated *************************************************/
#define DRIVER_NAME "Rfsd"
#define DEVICE_NAME L"\\Rfsd"
// Registry
#define PARAMETERS_KEY L"\\Parameters"
#define WRITING_SUPPORT L"WritingSupport"
#define CHECKING_BITMAP L"CheckingBitmap"
#define EXT3_FORCEWRITING L"Ext3ForceWriting"
#define EXT3_CODEPAGE L"CodePage"
// To support rfsd unload routine
#if RFSD_UNLOAD
#define DOS_DEVICE_NAME L"\\DosDevices\\Rfsd"
//
// Private IOCTL to make the driver ready to unload
//
#define IOCTL_PREPARE_TO_UNLOAD \
CTL_CODE(FILE_DEVICE_UNKNOWN, 2048, METHOD_NEITHER, FILE_WRITE_ACCESS)
#endif // RFSD_UNLOAD
#ifndef SetFlag
#define SetFlag(x,f) ((x) |= (f))
#endif
#ifndef ClearFlag
#define ClearFlag(x,f) ((x) &= ~(f))
#endif
#define IsFlagOn(a,b) ((BOOLEAN)(FlagOn(a,b) == b))
#define RfsdRaiseStatus(IRPCONTEXT,STATUS) { \
(IRPCONTEXT)->ExceptionCode = (STATUS); \
ExRaiseStatus( (STATUS) ); \
}
#define RfsdNormalizeAndRaiseStatus(IRPCONTEXT,STATUS) { \
/* (IRPCONTEXT)->ExceptionStatus = (STATUS); */ \
if ((STATUS) == STATUS_VERIFY_REQUIRED) { ExRaiseStatus((STATUS)); } \
ExRaiseStatus(FsRtlNormalizeNtstatus((STATUS),STATUS_UNEXPECTED_IO_ERROR)); \
}
//
// Define IsEndofFile for read and write operations
//
#define FILE_WRITE_TO_END_OF_FILE 0xffffffff
#define FILE_USE_FILE_POINTER_POSITION 0xfffffffe
#define IsEndOfFile(Pos) ((Pos.LowPart == FILE_WRITE_TO_END_OF_FILE) && \
(Pos.HighPart == FILE_USE_FILE_POINTER_POSITION ))
#define IsDirectory(Fcb) IsFlagOn(Fcb->RfsdMcb->FileAttr, FILE_ATTRIBUTE_DIRECTORY)
//
// Bug Check Codes Definitions
//
#define RFSD_FILE_SYSTEM (FILE_SYSTEM)
#define RFSD_BUGCHK_BLOCK (0x00010000)
#define RFSD_BUGCHK_CLEANUP (0x00020000)
#define RFSD_BUGCHK_CLOSE (0x00030000)
#define RFSD_BUGCHK_CMCB (0x00040000)
#define RFSD_BUGCHK_CREATE (0x00050000)
#define RFSD_BUGCHK_DEBUG (0x00060000)
#define RFSD_BUGCHK_DEVCTL (0x00070000)
#define RFSD_BUGCHK_DIRCTL (0x00080000)
#define RFSD_BUGCHK_DISPATCH (0x00090000)
#define RFSD_BUGCHK_EXCEPT (0x000A0000)
#define RFSD_BUGCHK_RFSD (0x000B0000)
#define RFSD_BUGCHK_FASTIO (0x000C0000)
#define RFSD_BUGCHK_FILEINFO (0x000D0000)
#define RFSD_BUGCHK_FLUSH (0x000E0000)
#define RFSD_BUGCHK_FSCTL (0x000F0000)
#define RFSD_BUGCHK_INIT (0x00100000)
#define RFSD_BUGCHK_LOCK (0x0011000)
#define RFSD_BUGCHK_MEMORY (0x0012000)
#define RFSD_BUGCHK_MISC (0x0013000)
#define RFSD_BUGCHK_READ (0x00140000)
#define RFSD_BUGCHK_SHUTDOWN (0x00150000)
#define RFSD_BUGCHK_VOLINFO (0x00160000)
#define RFSD_BUGCHK_WRITE (0x00170000)
#define RFSD_BUGCHK_LAST (0x00170000)
#define RfsdBugCheck(A,B,C,D) { KeBugCheckEx(RFSD_FILE_SYSTEM, A | __LINE__, B, C, D ); }
/* Rfsd file system definions *******************************************/
#define RFSD_MIN_BLOCK 1024
#define RFSD_MIN_FRAG 1024
//
// Inode flags (Linux uses octad number, but why ? strange!!!)
//
#define S_IFMT 0x0F000 /* 017 0000 */
#define S_IFSOCK 0x0C000 /* 014 0000 */
#define S_IFLNK 0x0A000 /* 012 0000 */
#define S_IFREG 0x08000 /* 010 0000 */
#define S_IFBLK 0x06000 /* 006 0000 */
#define S_IFDIR 0x04000 /* 004 0000 */
#define S_IFCHR 0x02000 /* 002 0000 */
#define S_IFIFO 0x01000 /* 001 0000 */
#define S_ISUID 0x00800 /* 000 4000 */
#define S_ISGID 0x00400 /* 000 2000 */
#define S_ISVTX 0x00200 /* 000 1000 */
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
#define S_ISFIL(m) (((m) & S_IFMT) == S_IFFIL)
#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
#define S_IPERMISSION_MASK 0x1FF /* */
#define S_IRWXU 0x1C0 /* 0 0700 */
#define S_IRUSR 0x100 /* 0 0400 */
#define S_IWUSR 0x080 /* 0 0200 */
#define S_IXUSR 0x040 /* 0 0100 */
#define S_IRWXG 0x038 /* 0 0070 */
#define S_IRGRP 0x020 /* 0 0040 */
#define S_IWGRP 0x010 /* 0 0020 */
#define S_IXGRP 0x008 /* 0 0010 */
#define S_IRWXO 0x007 /* 0 0007 */
#define S_IROTH 0x004 /* 0 0004 */
#define S_IWOTH 0x002 /* 0 0002 */
#define S_IXOTH 0x001 /* 0 0001 */
#define S_IRWXUGO (S_IRWXU|S_IRWXG|S_IRWXO)
#define S_IALLUGO (S_ISUID|S_ISGID|S_ISVTX|S_IRWXUGO)
#define S_IRUGO (S_IRUSR|S_IRGRP|S_IROTH)
#define S_IWUGO (S_IWUSR|S_IWGRP|S_IWOTH)
#define S_IXUGO (S_IXUSR|S_IXGRP|S_IXOTH)
#define S_ISREADABLE(m) (((m) & S_IPERMISSION_MASK) == (S_IRUSR | S_IRGRP | S_IROTH))
#define S_ISWRITABLE(m) (((m) & S_IPERMISSION_MASK) == (S_IWUSR | S_IWGRP | S_IWOTH))
#define RfsdSetReadable(m) (m) = ((m) | (S_IRUSR | S_IRGRP | S_IROTH))
#define RfsdSetWritable(m) (m) = ((m) | (S_IWUSR | S_IWGRP | S_IWOTH))
#define RfsdSetReadOnly(m) (m) = ((m) & (~(S_IWUSR | S_IWGRP | S_IWOTH)))
#define RfsdIsReadOnly(m) (!((m) & (S_IWUSR | S_IWGRP | S_IWOTH)))
//
// Inode state bits
//
#define I_DIRTY_SYNC 1 /* Not dirty enough for O_DATASYNC */
#define I_DIRTY_DATASYNC 2 /* Data-related inode changes pending */
#define I_DIRTY_PAGES 4 /* Data-related inode changes pending */
#define I_LOCK 8
#define I_FREEING 16
#define I_CLEAR 32
#define I_DIRTY (I_DIRTY_SYNC | I_DIRTY_DATASYNC | I_DIRTY_PAGES)
//
// Rfsd Driver Definitions
//
//
// RFSD_IDENTIFIER_TYPE
//
// Identifiers used to mark the structures
//
typedef enum _RFSD_IDENTIFIER_TYPE {
RFSDFGD = ':DGF',
RFSDVCB = ':BCV',
RFSDFCB = ':BCF',
RFSDCCB = ':BCC',
RFSDICX = ':XCI',
RFSDMCB = ':BCM'
} RFSD_IDENTIFIER_TYPE;
//
// RFSD_IDENTIFIER
//
// Header used to mark the structures
//
typedef struct _RFSD_IDENTIFIER {
RFSD_IDENTIFIER_TYPE Type;
ULONG Size;
} RFSD_IDENTIFIER, *PRFSD_IDENTIFIER;
#define NodeType(Ptr) (*((RFSD_IDENTIFIER_TYPE *)(Ptr)))
typedef struct _RFSD_MCB RFSD_MCB, *PRFSD_MCB;
typedef PVOID PBCB;
//
// REPINNED_BCBS List
//
#define RFSD_REPINNED_BCBS_ARRAY_SIZE (8)
typedef struct _RFSD_REPINNED_BCBS {
//
// A pointer to the next structure contains additional repinned bcbs
//
struct _RFSD_REPINNED_BCBS *Next;
//
// A fixed size array of pinned bcbs. Whenever a new bcb is added to
// the repinned bcb structure it is added to this array. If the
// array is already full then another repinned bcb structure is allocated
// and pointed to with Next.
//
PBCB Bcb[ RFSD_REPINNED_BCBS_ARRAY_SIZE ];
} RFSD_REPINNED_BCBS, *PRFSD_REPINNED_BCBS;
#define CODEPAGE_MAXLEN 0x20
//
// RFSD_GLOBAL_DATA
//
// Data that is not specific to a mounted volume
//
typedef struct _RFSD_GLOBAL {
// Identifier for this structure
RFSD_IDENTIFIER Identifier;
// Syncronization primitive for this structure
ERESOURCE Resource;
// Syncronization primitive for Counting
ERESOURCE CountResource;
// Syncronization primitive for LookAside Lists
ERESOURCE LAResource;
// Table of pointers to the fast I/O entry points
FAST_IO_DISPATCH FastIoDispatch;
// Table of pointers to the Cache Manager callbacks
CACHE_MANAGER_CALLBACKS CacheManagerCallbacks;
CACHE_MANAGER_CALLBACKS CacheManagerNoOpCallbacks;
// Pointer to the driver object
PDRIVER_OBJECT DriverObject;
// Pointer to the main device object
PDEVICE_OBJECT DeviceObject;
// List of mounted volumes
LIST_ENTRY VcbList;
// Look Aside table of IRP_CONTEXT, FCB, MCB, CCB
USHORT MaxDepth;
NPAGED_LOOKASIDE_LIST RfsdIrpContextLookasideList;
NPAGED_LOOKASIDE_LIST RfsdFcbLookasideList;
NPAGED_LOOKASIDE_LIST RfsdCcbLookasideList;
PAGED_LOOKASIDE_LIST RfsdMcbLookasideList;
// Mcb Count ...
USHORT McbAllocated;
#if DBG
// Fcb Count
USHORT FcbAllocated;
// IRP_MJ_CLOSE : FCB
USHORT IRPCloseCount;
#endif
// Global flags for the driver
ULONG Flags;
// User specified codepage name
struct {
WCHAR UniName[CODEPAGE_MAXLEN];
UCHAR AnsiName[CODEPAGE_MAXLEN];
struct nls_table * PageTable;
} CodePage;
} RFSD_GLOBAL, *PRFSD_GLOBAL;
#define PAGE_TABLE RfsdGlobal->CodePage.PageTable
//
// Flags for RFSD_GLOBAL_DATA
//
#define RFSD_UNLOAD_PENDING 0x00000001
#define RFSD_SUPPORT_WRITING 0x00000002
#define EXT3_FORCE_WRITING 0x00000004
#define RFSD_CHECKING_BITMAP 0x00000008
//
// Driver Extension define
//
typedef struct {
RFSD_GLOBAL RfsdGlobal;
} RFSDFS_EXT, *PRFSDFS_EXT;
typedef struct _RFSD_FCBVCB {
// FCB header required by NT
FSRTL_COMMON_FCB_HEADER CommonFCBHeader;
SECTION_OBJECT_POINTERS SectionObject;
ERESOURCE MainResource;
ERESOURCE PagingIoResource;
// end FCB header required by NT
// Identifier for this structure
RFSD_IDENTIFIER Identifier;
} RFSD_FCBVCB, *PRFSD_FCBVCB;
//
// RFSD_VCB Volume Control Block
//
// Data that represents a mounted logical volume
// It is allocated as the device extension of the volume device object
//
typedef struct _RFSD_VCB {
// FCB header required by NT
// The VCB is also used as an FCB for file objects
// that represents the volume itself
FSRTL_COMMON_FCB_HEADER Header;
SECTION_OBJECT_POINTERS SectionObject;
ERESOURCE MainResource;
ERESOURCE PagingIoResource;
// end FCB header required by NT
// Identifier for this structure
RFSD_IDENTIFIER Identifier;
LIST_ENTRY Next;
// Share Access for the file object
SHARE_ACCESS ShareAccess;
// Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP
// for files on this volume.
ULONG OpenFileHandleCount;
// Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLOSE
// for both files on this volume and open instances of the
// volume itself.
ULONG ReferenceCount;
ULONG OpenHandleCount;
//
// Disk change count
//
ULONG ChangeCount;
// Pointer to the VPB in the target device object
PVPB Vpb;
// The FileObject of Volume used to lock the volume
PFILE_OBJECT LockFile;
// List of FCBs for open files on this volume
LIST_ENTRY FcbList;
// List of IRPs pending on directory change notify requests
LIST_ENTRY NotifyList;
// Pointer to syncronization primitive for this list
PNOTIFY_SYNC NotifySync;
// This volumes device object
PDEVICE_OBJECT DeviceObject;
// The physical device object (the disk)
PDEVICE_OBJECT TargetDeviceObject;
// The physical device object (the disk)
PDEVICE_OBJECT RealDevice;
// Information about the physical device object
DISK_GEOMETRY DiskGeometry;
PARTITION_INFORMATION PartitionInformation;
PRFSD_SUPER_BLOCK SuperBlock;
PVOID GroupDesc; // (NOTE: unused in ReiserFS, but preserved in order to minimize changes to existing code)
// PVOID GroupDescBcb;
// Number of Group Decsciptions
ULONG NumOfGroups;
/*
// Bitmap Block per group
PRTL_BITMAP BlockBitMaps;
PRTL_BITMAP InodeBitMaps;
*/
// Block / Cluster size
ULONG BlockSize;
// Sector size in bits (NOTE: unused in ReiserFS)
//ULONG SectorBits;
ULONG dwData[RFSD_BLOCK_TYPES];
ULONG dwMeta[RFSD_BLOCK_TYPES];
// Flags for the volume
ULONG Flags;
// Streaming File Object
PFILE_OBJECT StreamObj;
// Resource Lock for Mcb
ERESOURCE McbResource;
// Dirty Mcbs of modifications for volume stream
LARGE_MCB DirtyMcbs;
// Entry of Mcb Tree (Root Node)
PRFSD_MCB McbTree;
LIST_ENTRY McbList;
} RFSD_VCB, *PRFSD_VCB;
//
// Flags for RFSD_VCB
//
#define VCB_INITIALIZED 0x00000001
#define VCB_VOLUME_LOCKED 0x00000002
#define VCB_MOUNTED 0x00000004
#define VCB_DISMOUNT_PENDING 0x00000008
#define VCB_READ_ONLY 0x00000010
#define VCB_WRITE_PROTECTED 0x10000000
#define VCB_FLOPPY_DISK 0x20000000
#define VCB_REMOVAL_PREVENTED 0x40000000
#define VCB_REMOVABLE_MEDIA 0x80000000
#define IsMounted(Vcb) (IsFlagOn(Vcb->Flags, VCB_MOUNTED))
//
// RFSD_FCB File Control Block
//
// Data that represents an open file
// There is a single instance of the FCB for every open file
//
typedef struct _RFSD_FCB {
// FCB header required by NT
FSRTL_COMMON_FCB_HEADER Header;
SECTION_OBJECT_POINTERS SectionObject;
ERESOURCE MainResource;
ERESOURCE PagingIoResource;
// end FCB header required by NT
// Identifier for this structure
RFSD_IDENTIFIER Identifier;
// List of FCBs for this volume
LIST_ENTRY Next;
// Share Access for the file object
SHARE_ACCESS ShareAccess;
// List of byte-range locks for this file
FILE_LOCK FileLockAnchor;
// Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP
ULONG OpenHandleCount;
// Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLOSE
ULONG ReferenceCount;
// Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP
// But only for Files with FO_NO_INTERMEDIATE_BUFFERING flag
ULONG NonCachedOpenCount;
// Flags for the FCB
ULONG Flags;
// Pointer to the inode / stat data structure
PRFSD_INODE Inode;
// Hint block for next allocation
ULONG BlkHint;
// Vcb
PRFSD_VCB Vcb;
// Mcb Node ...
PRFSD_MCB RfsdMcb;
// Full Path Name
UNICODE_STRING LongName;
#if DBG
// The Ansi Filename for debugging
OEM_STRING AnsiFileName;
#endif
} RFSD_FCB, *PRFSD_FCB;
//
// Flags for RFSD_FCB
//
#define FCB_FROM_POOL 0x00000001
#define FCB_PAGE_FILE 0x00000002
#define FCB_DELETE_ON_CLOSE 0x00000004
#define FCB_DELETE_PENDING 0x00000008
#define FCB_FILE_DELETED 0x00000010
#define FCB_FILE_MODIFIED 0x00000020
// Mcb Node
struct _RFSD_MCB {
// Identifier for this structure
RFSD_IDENTIFIER Identifier;
// Flags
ULONG Flags;
// Link List Info
PRFSD_MCB Parent; // Parent
PRFSD_MCB Child; // Children
PRFSD_MCB Next; // Brothers
// Mcb Node Info
// -> Fcb
PRFSD_FCB RfsdFcb;
// Short name
UNICODE_STRING ShortName;
// Inode number (ReiserFS uses 128-bit keys instead of inode numbers)
RFSD_KEY_IN_MEMORY Key;
// Dir entry offset in parent (relative to the start of the directory listing)
ULONG DeOffset;
// File attribute
ULONG FileAttr;
// List Link to Vcb->McbList
LIST_ENTRY Link;
};
//
// Flags for MCB
//
#define MCB_FROM_POOL 0x00000001
#define MCB_IN_TREE 0x00000002
#define MCB_IN_USE 0x00000004
#define IsMcbUsed(Mcb) IsFlagOn(Mcb->Flags, MCB_IN_USE)
//
// RFSD_CCB Context Control Block
//
// Data that represents one instance of an open file
// There is one instance of the CCB for every instance of an open file
//
typedef struct _RFSD_CCB {
// Identifier for this structure
RFSD_IDENTIFIER Identifier;
// Flags
ULONG Flags;
// State that may need to be maintained
ULONG CurrentByteOffset;
USHORT deh_location;
UNICODE_STRING DirectorySearchPattern;
} RFSD_CCB, *PRFSD_CCB;
//
// Flags for CCB
//
#define CCB_FROM_POOL 0x00000001
#define CCB_ALLOW_EXTENDED_DASD_IO 0x80000000
//
// RFSD_IRP_CONTEXT
//
// Used to pass information about a request between the drivers functions
//
typedef struct _RFSD_IRP_CONTEXT {
// Identifier for this structure
RFSD_IDENTIFIER Identifier;
// Pointer to the IRP this request describes
PIRP Irp;
// Flags
ULONG Flags;
// The major and minor function code for the request
UCHAR MajorFunction;
UCHAR MinorFunction;
// The device object
PDEVICE_OBJECT DeviceObject;
// The real device object
PDEVICE_OBJECT RealDevice;
// The file object
PFILE_OBJECT FileObject;
PRFSD_FCB Fcb;
PRFSD_CCB Ccb;
// If the request is synchronous (we are allowed to block)
BOOLEAN IsSynchronous;
// If the request is top level
BOOLEAN IsTopLevel;
// Used if the request needs to be queued for later processing
WORK_QUEUE_ITEM WorkQueueItem;
// If an exception is currently in progress
BOOLEAN ExceptionInProgress;
// The exception code when an exception is in progress
NTSTATUS ExceptionCode;
// Repinned BCBs List
RFSD_REPINNED_BCBS Repinned;
} RFSD_IRP_CONTEXT, *PRFSD_IRP_CONTEXT;
#define IRP_CONTEXT_FLAG_FROM_POOL (0x00000001)
#define IRP_CONTEXT_FLAG_WAIT (0x00000002)
#define IRP_CONTEXT_FLAG_WRITE_THROUGH (0x00000004)
#define IRP_CONTEXT_FLAG_FLOPPY (0x00000008)
#define IRP_CONTEXT_FLAG_RECURSIVE_CALL (0x00000010)
#define IRP_CONTEXT_FLAG_DISABLE_POPUPS (0x00000020)
#define IRP_CONTEXT_FLAG_DEFERRED (0x00000040)
#define IRP_CONTEXT_FLAG_VERIFY_READ (0x00000080)
#define IRP_CONTEXT_STACK_IO_CONTEXT (0x00000100)
#define IRP_CONTEXT_FLAG_REQUEUED (0x00000200)
#define IRP_CONTEXT_FLAG_USER_IO (0x00000400)
#define IRP_CONTEXT_FLAG_DELAY_CLOSE (0x00000800)
//
// RFSD_ALLOC_HEADER
//
// In the checked version of the driver this header is put in the beginning of
// every memory allocation
//
typedef struct _RFSD_ALLOC_HEADER {
RFSD_IDENTIFIER Identifier;
} RFSD_ALLOC_HEADER, *PRFSD_ALLOC_HEADER;
typedef struct _FCB_LIST_ENTRY {
PRFSD_FCB Fcb;
LIST_ENTRY Next;
} FCB_LIST_ENTRY, *PFCB_LIST_ENTRY;
// Block Description List
typedef struct _RFSD_BDL {
ULONGLONG Lba;
ULONGLONG Offset;
ULONG Length;
PIRP Irp;
} RFSD_BDL, *PRFSD_BDL;
#pragma pack()
/* FUNCTIONS DECLARATION *****************************************************/
//
// The following macro is used to determine if an FSD thread can block
// for I/O or wait for a resource. It returns TRUE if the thread can
// block and FALSE otherwise. This attribute can then be used to call
// the FSD & FSP common work routine with the proper wait value.
//
#define CanRfsdWait(IRP) IoIsOperationSynchronous(Irp)
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
//
// RfsdBlock.c
//
// TODO move allocate and load block here
NTSTATUS
RfsdFindItemHeaderInBlock(
IN PRFSD_VCB Vcb,
IN PRFSD_KEY_IN_MEMORY pKey, // The key to match against
IN PUCHAR pBlockBuffer, // A filled disk block, provided by the caller
OUT PRFSD_ITEM_HEAD* ppTargetItemHeader, // A pointer to a PRFSD_ITEM_HEAD. The PRFSD_ITEM_HEAD will point to the item head matching Key, or NULL if there was no such item head in the given block.
IN RFSD_KEY_COMPARISON (*fpComparisonFunction)(PRFSD_KEY_IN_MEMORY, PRFSD_KEY_IN_MEMORY)
);
NTSTATUS
RfsdLoadItem(
IN PRFSD_VCB Vcb,
IN PRFSD_KEY_IN_MEMORY pItemKey, // The key of the item to find
OUT PRFSD_ITEM_HEAD* ppMatchingItemHeader,
OUT PUCHAR* ppItemBuffer,
OUT PUCHAR* ppBlockBuffer, // Block buffer, which backs the other output data structures. The caller must free this (even in the case of an error)!
OUT PULONG pBlockNumber, // The ordinal disk block number at which the item was found
IN RFSD_KEY_COMPARISON (*fpComparisonFunction)(PRFSD_KEY_IN_MEMORY, PRFSD_KEY_IN_MEMORY)
);
//
// Block.c
//
NTSTATUS
RfsdLockUserBuffer (
IN PIRP Irp,
IN ULONG Length,
IN LOCK_OPERATION Operation);
PVOID
RfsdGetUserBuffer (IN PIRP Irp);
NTSTATUS
RfsdReadWriteBlocks(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_BDL RfsdBDL,
IN ULONG Length,
IN ULONG Count,
IN BOOLEAN bVerify );
PUCHAR
RfsdAllocateAndLoadBlock(
IN PRFSD_VCB Vcb,
IN ULONG BlockIndex );
NTSTATUS
RfsdReadSync(
IN PRFSD_VCB Vcb,
IN ULONGLONG Offset,
IN ULONG Length,
OUT PVOID Buffer,
IN BOOLEAN bVerify );
NTSTATUS
RfsdReadDisk(
IN PRFSD_VCB Vcb,
IN ULONGLONG Offset,
IN ULONG Size,
IN PVOID Buffer,
IN BOOLEAN bVerify );
NTSTATUS
RfsdDiskIoControl (
IN PDEVICE_OBJECT DeviceOjbect,
IN ULONG IoctlCode,
IN PVOID InputBuffer,
IN ULONG InputBufferSize,
IN OUT PVOID OutputBuffer,
IN OUT PULONG OutputBufferSize );
VOID
RfsdMediaEjectControl (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN BOOLEAN bPrevent );
NTSTATUS
RfsdDiskShutDown(PRFSD_VCB Vcb);
//
// Cleanup.c
//
NTSTATUS
RfsdCleanup (IN PRFSD_IRP_CONTEXT IrpContext);
//
// Close.c
//
NTSTATUS
RfsdClose (IN PRFSD_IRP_CONTEXT IrpContext);
VOID
RfsdQueueCloseRequest (IN PRFSD_IRP_CONTEXT IrpContext);
#ifdef _PREFAST_
IO_WORKITEM_ROUTINE RfsdDeQueueCloseRequest;
#endif // _PREFAST_
VOID NTAPI
RfsdDeQueueCloseRequest (IN PVOID Context);
//
// Cmcb.c
//
BOOLEAN NTAPI
RfsdAcquireForLazyWrite (
IN PVOID Context,
IN BOOLEAN Wait );
VOID NTAPI
RfsdReleaseFromLazyWrite (IN PVOID Context);
BOOLEAN NTAPI
RfsdAcquireForReadAhead (
IN PVOID Context,
IN BOOLEAN Wait );
BOOLEAN NTAPI
RfsdNoOpAcquire (
IN PVOID Fcb,
IN BOOLEAN Wait );
VOID NTAPI
RfsdNoOpRelease (IN PVOID Fcb );
VOID NTAPI
RfsdReleaseFromReadAhead (IN PVOID Context);
//
// Create.c
//
PRFSD_FCB
RfsdSearchFcbList(
IN PRFSD_VCB Vcb,
IN ULONG inode);
NTSTATUS
RfsdScanDir (IN PRFSD_VCB Vcb,
IN PRFSD_MCB ParentMcb, // Mcb of the directory to be scanned
IN PUNICODE_STRING FileName, // Short file name (not necisarilly null-terminated!)
IN OUT PULONG Index, // Offset (in bytes) of the dentry relative to the start of the directory listing
IN OUT PRFSD_DENTRY_HEAD rfsd_dir); // Directory entry of the found item
NTSTATUS
RfsdLookupFileName (
IN PRFSD_VCB Vcb,
IN PUNICODE_STRING FullFileName,
IN PRFSD_MCB ParentMcb,
OUT PRFSD_MCB * RfsdMcb,
IN OUT PRFSD_INODE Inode);
NTSTATUS
RfsdCreateFile(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb );
NTSTATUS
RfsdCreateVolume(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb );
NTSTATUS
RfsdCreate (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdCreateInode(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_FCB pParentFcb,
IN ULONG Type,
IN ULONG FileAttr,
IN PUNICODE_STRING FileName);
NTSTATUS
RfsdSupersedeOrOverWriteFile(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_FCB Fcb,
IN ULONG Disposition);
//
// Debug.c
//
#define DBG_VITAL 0
#define DBG_ERROR 1
#define DBG_USER 2
#define DBG_TRACE 3
#define DBG_INFO 4
#define DBG_FUNC 5
#if DBG
#define RfsdPrint(arg) RfsdPrintf arg
#define RfsdPrintNoIndent(arg) RfsdNIPrintf arg
#define RfsdCompleteRequest(Irp, bPrint, PriorityBoost) \
RfsdDbgPrintComplete(Irp, bPrint); \
IoCompleteRequest(Irp, PriorityBoost)
#else
#define RfsdPrint(arg)
#define RfsdPrintNoIndent(arg)
#define RfsdCompleteRequest(Irp, bPrint, PriorityBoost) \
IoCompleteRequest(Irp, PriorityBoost)
#endif // DBG
VOID
__cdecl
RfsdPrintf(
LONG DebugPrintLevel,
PCHAR DebugMessage,
...
);
VOID
__cdecl
RfsdNIPrintf(
LONG DebugPrintLevel,
PCHAR DebugMessage,
...
);
extern ULONG ProcessNameOffset;
#define RfsdGetCurrentProcessName() ( \
(PUCHAR) PsGetCurrentProcess() + ProcessNameOffset \
)
ULONG
RfsdGetProcessNameOffset (VOID);
VOID
RfsdDbgPrintCall (
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp );
VOID
RfsdDbgPrintComplete (
IN PIRP Irp,
IN BOOLEAN bPrint
);
PUCHAR
RfsdNtStatusToString (IN NTSTATUS Status );
//
// Devctl.c
//
NTSTATUS
RfsdDeviceControlNormal (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdPrepareToUnload (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdDeviceControl (IN PRFSD_IRP_CONTEXT IrpContext);
//
// Dirctl.c
//
ULONG
RfsdGetInfoLength(IN FILE_INFORMATION_CLASS FileInformationClass);
ULONG
RfsdProcessDirEntry(
IN PRFSD_VCB Vcb,
IN FILE_INFORMATION_CLASS FileInformationClass,
IN __u32 Key_ParentID,
IN __u32 Key_ObjectID,
IN PVOID Buffer,
IN ULONG UsedLength,
IN ULONG Length,
IN ULONG FileIndex,
IN PUNICODE_STRING pName,
IN BOOLEAN Single,
IN PVOID pPreviousEntry );
NTSTATUS
RfsdQueryDirectory (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdNotifyChangeDirectory (
IN PRFSD_IRP_CONTEXT IrpContext
);
VOID
RfsdNotifyReportChange (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_FCB Fcb,
IN ULONG Filter,
IN ULONG Action
);
NTSTATUS
RfsdDirectoryControl (IN PRFSD_IRP_CONTEXT IrpContext);
BOOLEAN
RfsdIsDirectoryEmpty (
IN PRFSD_VCB Vcb,
IN PRFSD_FCB Fcb
);
//
// Dispatch.c
//
NTSTATUS
RfsdQueueRequest (IN PRFSD_IRP_CONTEXT IrpContext);
#ifdef _PREFAST_
IO_WORKITEM_ROUTINE RfsdDeQueueRequest;
#endif // _PREFAST_
VOID NTAPI
RfsdDeQueueRequest (IN PVOID Context);
NTSTATUS
RfsdDispatchRequest (IN PRFSD_IRP_CONTEXT IrpContext);
#ifdef _PREFAST_
__drv_dispatchType(IRP_MJ_CREATE)
__drv_dispatchType(IRP_MJ_CLOSE)
__drv_dispatchType(IRP_MJ_READ)
__drv_dispatchType(IRP_MJ_WRITE)
__drv_dispatchType(IRP_MJ_FLUSH_BUFFERS)
__drv_dispatchType(IRP_MJ_QUERY_INFORMATION)
__drv_dispatchType(IRP_MJ_SET_INFORMATION)
__drv_dispatchType(IRP_MJ_QUERY_VOLUME_INFORMATION)
__drv_dispatchType(IRP_MJ_SET_VOLUME_INFORMATION)
__drv_dispatchType(IRP_MJ_DIRECTORY_CONTROL)
__drv_dispatchType(IRP_MJ_FILE_SYSTEM_CONTROL)
__drv_dispatchType(IRP_MJ_DEVICE_CONTROL)
__drv_dispatchType(IRP_MJ_LOCK_CONTROL)
__drv_dispatchType(IRP_MJ_CLEANUP)
__drv_dispatchType(IRP_MJ_PNP)
__drv_dispatchType(IRP_MJ_SHUTDOWN)
DRIVER_DISPATCH RfsdBuildRequest;
#endif // _PREFAST_
NTSTATUS NTAPI
RfsdBuildRequest (
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
);
//
// Except.c
//
NTSTATUS
RfsdExceptionFilter (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PEXCEPTION_POINTERS ExceptionPointer
);
NTSTATUS
RfsdExceptionHandler (IN PRFSD_IRP_CONTEXT IrpContext);
//
// Rfsd.c
//
PRFSD_SUPER_BLOCK
RfsdLoadSuper(
IN PRFSD_VCB Vcb,
IN BOOLEAN bVerify
);
BOOLEAN
RfsdSaveSuper(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb
);
BOOLEAN
RfsdLoadGroup(IN PRFSD_VCB Vcb);
BOOLEAN
RfsdSaveGroup(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN ULONG Group
);
BOOLEAN
RfsdGetInodeLba (IN PRFSD_VCB Vcb,
IN __u32 DirectoryID,
IN __u32 ParentID,
OUT PLONGLONG offset);
BOOLEAN
RfsdLoadInode (IN PRFSD_VCB Vcb,
IN PRFSD_KEY_IN_MEMORY pKey,
IN OUT PRFSD_INODE Inode);
BOOLEAN
RfsdLoadInode2 (IN PRFSD_VCB Vcb,
IN __u32 a,
IN __u32 b,
IN OUT PRFSD_INODE Inode);
BOOLEAN
RfsdSaveInode (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN ULONG inode,
IN PRFSD_INODE Inode
);
BOOLEAN
RfsdLoadBlock (
IN PRFSD_VCB Vcb,
IN ULONG dwBlk,
IN PVOID Buffer
);
BOOLEAN
RfsdSaveBlock (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN ULONG dwBlk,
IN PVOID Buf
);
BOOLEAN
RfsdSaveBuffer(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN LONGLONG Offset,
IN ULONG Size,
IN PVOID Buf
);
NTSTATUS
RfsdGetBlock(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN ULONG dwContent,
IN ULONG Index,
IN ULONG Layer,
IN BOOLEAN bAlloc,
OUT PULONG pBlock
);
NTSTATUS
RfsdBlockMap(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN ULONG InodeNo,
IN PRFSD_INODE Inode,
IN ULONG Index,
IN BOOLEAN bAlloc,
OUT PULONG pBlock
);
NTSTATUS
RfsdBuildBDL2(
IN PRFSD_VCB Vcb,
IN PRFSD_KEY_IN_MEMORY pKey,
IN PRFSD_INODE pInode,
OUT PULONG out_Count,
OUT PRFSD_BDL* out_ppBdl );
NTSTATUS
RfsdBuildBDL(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_KEY_IN_MEMORY InodeNo,
IN PRFSD_INODE Inode,
IN ULONGLONG Offset,
IN ULONG Size,
IN BOOLEAN bAlloc,
OUT PRFSD_BDL * Bdls,
OUT PULONG Count
);
NTSTATUS
RfsdNewBlock(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
ULONG GroupHint,
ULONG BlockHint,
PULONG dwRet );
NTSTATUS
RfsdFreeBlock(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
ULONG Block );
NTSTATUS
RfsdExpandBlock(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
PRFSD_FCB Fcb,
ULONG dwContent,
ULONG Index,
ULONG layer,
BOOLEAN bNew,
ULONG *dwRet );
NTSTATUS
RfsdExpandInode(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
PRFSD_FCB Fcb,
ULONG *dwRet );
NTSTATUS
RfsdNewInode(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
ULONG GroupHint,
ULONG mode,
PULONG Inode );
BOOLEAN
RfsdFreeInode(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
ULONG Inode,
ULONG Type );
NTSTATUS
RfsdAddEntry (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_FCB Dcb,
IN ULONG FileType,
IN ULONG Inode,
IN PUNICODE_STRING FileName );
NTSTATUS
RfsdRemoveEntry (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_FCB Dcb,
IN ULONG FileType,
IN ULONG Inode );
NTSTATUS
RfsdSetParentEntry (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_FCB Dcb,
IN ULONG OldParent,
IN ULONG NewParent );
NTSTATUS
RfsdTruncateBlock(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_FCB Fcb,
IN ULONG dwContent,
IN ULONG Index,
IN ULONG layer,
OUT BOOLEAN *bFreed );
NTSTATUS
RfsdTruncateInode(
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_FCB Fcb );
BOOLEAN
RfsdAddMcbEntry (
IN PRFSD_VCB Vcb,
IN LONGLONG Lba,
IN LONGLONG Length );
VOID
RfsdRemoveMcbEntry (
IN PRFSD_VCB Vcb,
IN LONGLONG Lba,
IN LONGLONG Length );
BOOLEAN
RfsdLookupMcbEntry (
IN PRFSD_VCB Vcb,
IN LONGLONG Offset,
OUT PLONGLONG Lba OPTIONAL,
OUT PLONGLONG Length OPTIONAL,
OUT PLONGLONG RunStart OPTIONAL,
OUT PLONGLONG RunLength OPTIONAL,
OUT PULONG Index OPTIONAL );
BOOLEAN
SuperblockContainsMagicKey(PRFSD_SUPER_BLOCK sb);
__u32
ConvertKeyTypeUniqueness(__u32 k_uniqueness);
void
FillInMemoryKey(
IN PRFSD_KEY_ON_DISK pKeyOnDisk,
IN RFSD_KEY_VERSION KeyVersion,
IN OUT PRFSD_KEY_IN_MEMORY pKeyInMemory );
RFSD_KEY_VERSION DetermineOnDiskKeyFormat(const PRFSD_KEY_ON_DISK key);
RFSD_KEY_COMPARISON
CompareShortKeys(
IN PRFSD_KEY_IN_MEMORY a,
IN PRFSD_KEY_IN_MEMORY b );
RFSD_KEY_COMPARISON
CompareKeysWithoutOffset(
IN PRFSD_KEY_IN_MEMORY a,
IN PRFSD_KEY_IN_MEMORY b );
RFSD_KEY_COMPARISON
CompareKeys(
IN PRFSD_KEY_IN_MEMORY a,
IN PRFSD_KEY_IN_MEMORY b );
NTSTATUS
NavigateToLeafNode(
IN PRFSD_VCB Vcb,
IN PRFSD_KEY_IN_MEMORY Key,
IN ULONG StartingBlockNumber,
OUT PULONG out_NextBlockNumber );
NTSTATUS
RfsdParseFilesystemTree(
IN PRFSD_VCB Vcb,
IN PRFSD_KEY_IN_MEMORY Key, // Key to search for.
IN ULONG StartingBlockNumber, // Block number of an internal or leaf node, to start the search from
IN RFSD_CALLBACK(fpDirectoryCallback), // A function ptr to trigger on hitting a matching leaf block
IN PVOID Context
);
NTSTATUS
_NavigateToLeafNode(
IN PRFSD_VCB Vcb,
IN PRFSD_KEY_IN_MEMORY Key,
IN ULONG StartingBlockNumber,
OUT PULONG out_NextBlockNumber,
IN BOOLEAN ReturnOnFirstMatch,
IN RFSD_KEY_COMPARISON (*fpComparisonFunction)(PRFSD_KEY_IN_MEMORY, PRFSD_KEY_IN_MEMORY),
RFSD_CALLBACK(fpDirectoryCallback),
IN PVOID pContext
);
//
// Fastio.c
//
#ifdef _PREFAST_
FAST_IO_CHECK_IF_POSSIBLE RfsdFastIoCheckIfPossible;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoCheckIfPossible (
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN ULONG Length,
IN BOOLEAN Wait,
IN ULONG LockKey,
IN BOOLEAN CheckForReadOperation,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject );
#ifdef _PREFAST_
FAST_IO_READ RfsdFastIoRead;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoRead (IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN ULONG Length,
IN BOOLEAN Wait,
IN ULONG LockKey,
OUT PVOID Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject);
#ifdef _PREFAST_
FAST_IO_WRITE RfsdFastIoWrite;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoWrite (
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN ULONG Length,
IN BOOLEAN Wait,
IN ULONG LockKey,
OUT PVOID Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject);
#ifdef _PREFAST_
FAST_IO_QUERY_BASIC_INFO RfsdFastIoQueryBasicInfo;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoQueryBasicInfo (
IN PFILE_OBJECT FileObject,
IN BOOLEAN Wait,
OUT PFILE_BASIC_INFORMATION Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject);
#ifdef _PREFAST_
FAST_IO_QUERY_STANDARD_INFO RfsdFastIoQueryStandardInfo;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoQueryStandardInfo (
IN PFILE_OBJECT FileObject,
IN BOOLEAN Wait,
OUT PFILE_STANDARD_INFORMATION Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject);
#ifdef _PREFAST_
FAST_IO_LOCK RfsdFastIoLock;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoLock (
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN PLARGE_INTEGER Length,
IN PEPROCESS Process,
IN ULONG Key,
IN BOOLEAN FailImmediately,
IN BOOLEAN ExclusiveLock,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef _PREFAST_
FAST_IO_UNLOCK_SINGLE RfsdFastIoUnlockSingle;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoUnlockSingle (
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN PLARGE_INTEGER Length,
IN PEPROCESS Process,
IN ULONG Key,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef _PREFAST_
FAST_IO_UNLOCK_ALL RfsdFastIoUnlockAll;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoUnlockAll (
IN PFILE_OBJECT FileObject,
IN PEPROCESS Process,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef _PREFAST_
FAST_IO_UNLOCK_ALL_BY_KEY RfsdFastIoUnlockAllByKey;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoUnlockAllByKey (
IN PFILE_OBJECT FileObject,
#ifdef __REACTOS__
IN PVOID Process,
#else
IN PEPROCESS Process,
#endif
IN ULONG Key,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef _PREFAST_
FAST_IO_QUERY_NETWORK_OPEN_INFO RfsdFastIoQueryNetworkOpenInfo;
#endif // _PREFAST_
BOOLEAN NTAPI
RfsdFastIoQueryNetworkOpenInfo (
IN PFILE_OBJECT FileObject,
IN BOOLEAN Wait,
OUT PFILE_NETWORK_OPEN_INFORMATION Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject );
//
// FileInfo.c
//
NTSTATUS
RfsdQueryInformation (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdSetInformation (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdExpandFile (
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
PRFSD_FCB Fcb,
PLARGE_INTEGER AllocationSize );
NTSTATUS
RfsdTruncateFile (
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
PRFSD_FCB Fcb,
PLARGE_INTEGER AllocationSize );
NTSTATUS
RfsdSetDispositionInfo(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
PRFSD_FCB Fcb,
BOOLEAN bDelete);
NTSTATUS
RfsdSetRenameInfo(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
PRFSD_FCB Fcb );
NTSTATUS
RfsdDeleteFile(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
PRFSD_FCB Fcb );
//
// Flush.c
//
NTSTATUS
RfsdFlushFiles (IN PRFSD_VCB Vcb, BOOLEAN bShutDown);
NTSTATUS
RfsdFlushVolume (IN PRFSD_VCB Vcb, BOOLEAN bShutDown);
NTSTATUS
RfsdFlushFile (IN PRFSD_FCB Fcb);
NTSTATUS
RfsdFlush (IN PRFSD_IRP_CONTEXT IrpContext);
//
// Fsctl.c
//
VOID
RfsdSetVpbFlag (IN PVPB Vpb,
IN USHORT Flag );
VOID
RfsdClearVpbFlag (IN PVPB Vpb,
IN USHORT Flag );
BOOLEAN
RfsdCheckDismount (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN BOOLEAN bForce );
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdPurgeVolume (IN PRFSD_VCB Vcb,
IN BOOLEAN FlushBeforePurge);
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdPurgeFile (IN PRFSD_FCB Fcb,
IN BOOLEAN FlushBeforePurge);
BOOLEAN
RfsdIsHandleCountZero(IN PRFSD_VCB Vcb);
NTSTATUS
RfsdLockVcb (IN PRFSD_VCB Vcb,
IN PFILE_OBJECT FileObject);
NTSTATUS
RfsdLockVolume (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdUnlockVcb (IN PRFSD_VCB Vcb,
IN PFILE_OBJECT FileObject);
NTSTATUS
RfsdUnlockVolume (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdAllowExtendedDasdIo(IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdUserFsRequest (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdMountVolume (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdVerifyVolume (IN PRFSD_IRP_CONTEXT IrpContext);
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdIsVolumeMounted (IN PRFSD_IRP_CONTEXT IrpContext);
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdDismountVolume (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdFileSystemControl (IN PRFSD_IRP_CONTEXT IrpContext);
//
// Init.c
//
BOOLEAN
RfsdQueryParameters (IN PUNICODE_STRING RegistryPath);
#ifdef _PREFAST_
DRIVER_INITIALIZE DriverEntry;
#endif // _PREFAST_
#ifdef _PREFAST_
DRIVER_UNLOAD DriverUnload;
#endif // _PREFAST_
VOID NTAPI
DriverUnload (IN PDRIVER_OBJECT DriverObject);
//
// Lock.c
//
NTSTATUS
RfsdLockControl (IN PRFSD_IRP_CONTEXT IrpContext);
//
// Memory.c
//
PRFSD_IRP_CONTEXT
RfsdAllocateIrpContext (IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp );
VOID
RfsdFreeIrpContext (IN PRFSD_IRP_CONTEXT IrpContext);
PRFSD_FCB
RfsdAllocateFcb (IN PRFSD_VCB Vcb,
IN PRFSD_MCB RfsdMcb,
IN PRFSD_INODE Inode );
VOID
RfsdFreeFcb (IN PRFSD_FCB Fcb);
PRFSD_CCB
RfsdAllocateCcb (VOID);
VOID
RfsdFreeMcb (IN PRFSD_MCB Mcb);
PRFSD_FCB
RfsdCreateFcbFromMcb(PRFSD_VCB Vcb, PRFSD_MCB Mcb);
VOID
RfsdFreeCcb (IN PRFSD_CCB Ccb);
PRFSD_MCB
RfsdAllocateMcb ( PRFSD_VCB,
PUNICODE_STRING FileName,
ULONG FileAttr);
PRFSD_MCB
RfsdSearchMcbTree( PRFSD_VCB Vcb,
PRFSD_MCB RfsdMcb,
PRFSD_KEY_IN_MEMORY Key);
PRFSD_MCB
RfsdSearchMcb( PRFSD_VCB Vcb, PRFSD_MCB Parent,
PUNICODE_STRING FileName);
BOOLEAN
RfsdGetFullFileName( PRFSD_MCB Mcb,
PUNICODE_STRING FileName);
VOID
RfsdRefreshMcb(PRFSD_VCB Vcb, PRFSD_MCB Mcb);
VOID
RfsdAddMcbNode( PRFSD_VCB Vcb,
PRFSD_MCB Parent,
PRFSD_MCB Child );
BOOLEAN
RfsdDeleteMcbNode(
PRFSD_VCB Vcb,
PRFSD_MCB McbTree,
PRFSD_MCB RfsdMcb);
VOID
RfsdFreeMcbTree(PRFSD_MCB McbTree);
BOOLEAN
RfsdCheckSetBlock( PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb, ULONG Block);
BOOLEAN
RfsdCheckBitmapConsistency( PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb);
VOID
RfsdInsertVcb(PRFSD_VCB Vcb);
VOID
RfsdRemoveVcb(PRFSD_VCB Vcb);
NTSTATUS
RfsdInitializeVcb(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb,
PRFSD_SUPER_BLOCK RfsdSb,
PDEVICE_OBJECT TargetDevice,
PDEVICE_OBJECT VolumeDevice,
PVPB Vpb );
VOID
RfsdFreeVcb (IN PRFSD_VCB Vcb );
VOID
RfsdRepinBcb (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PBCB Bcb );
VOID
RfsdUnpinRepinnedBcbs (
IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdCompleteIrpContext (
IN PRFSD_IRP_CONTEXT IrpContext,
IN NTSTATUS Status );
VOID
RfsdSyncUninitializeCacheMap (
IN PFILE_OBJECT FileObject );
//
// Misc.c
//
/** Returns the length of a string (not including a terminating null), or MaximumLength if no terminator is found within MaximumLength characters. */
static inline USHORT RfsdStringLength(PUCHAR buffer, USHORT MaximumLength)
{
USHORT i = 0;
while ((i < MaximumLength) && (buffer[i] != '\0')) { i++; }
return i;
}
ULONG
RfsdLog2(ULONG Value);
LARGE_INTEGER
RfsdSysTime (IN ULONG i_time);
ULONG
RfsdInodeTime (IN LARGE_INTEGER SysTime);
ULONG
RfsdOEMToUnicodeSize(
IN PANSI_STRING Oem
);
NTSTATUS
RfsdOEMToUnicode(
IN OUT PUNICODE_STRING Oem,
IN POEM_STRING Unicode
);
ULONG
RfsdUnicodeToOEMSize(
IN PUNICODE_STRING Unicode
);
NTSTATUS
RfsdUnicodeToOEM (
IN OUT POEM_STRING Oem,
IN PUNICODE_STRING Unicode
);
//
// nls/nls_rtl.c
//
int
RfsdLoadAllNls();
VOID
RfsdUnloadAllNls();
//
// Pnp.c
//
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdPnp(IN PRFSD_IRP_CONTEXT IrpContext);
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdPnpQueryRemove(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb );
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdPnpRemove(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb );
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdPnpCancelRemove(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb );
__drv_mustHoldCriticalRegion
NTSTATUS
RfsdPnpSurpriseRemove(
PRFSD_IRP_CONTEXT IrpContext,
PRFSD_VCB Vcb );
//
// Read.c
//
BOOLEAN
RfsdCopyRead(
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN ULONG Length,
IN BOOLEAN Wait,
OUT PVOID Buffer,
OUT PIO_STATUS_BLOCK IoStatus );
NTSTATUS
RfsdReadInode (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PRFSD_KEY_IN_MEMORY Key,
IN PRFSD_INODE Inode,
IN ULONGLONG Offset,
IN PVOID Buffer,
IN ULONG Size,
OUT PULONG dwReturn
);
NTSTATUS
RfsdRead (IN PRFSD_IRP_CONTEXT IrpContext);
//
// Shutdown.c
//
NTSTATUS
RfsdShutDown (IN PRFSD_IRP_CONTEXT IrpContext);
//
// Volinfo.c
//
NTSTATUS
RfsdQueryVolumeInformation (IN PRFSD_IRP_CONTEXT IrpContext);
NTSTATUS
RfsdSetVolumeInformation (IN PRFSD_IRP_CONTEXT IrpContext);
//
// Write.c
//
NTSTATUS
RfsdWriteInode (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN ULONG InodeNo,
IN PRFSD_INODE Inode,
IN ULONGLONG Offset,
IN PVOID Buffer,
IN ULONG Size,
IN BOOLEAN bWriteToDisk,
OUT PULONG dwReturn
);
VOID
RfsdStartFloppyFlushDpc (
PRFSD_VCB Vcb,
PRFSD_FCB Fcb,
PFILE_OBJECT FileObject );
BOOLEAN
RfsdZeroHoles (
IN PRFSD_IRP_CONTEXT IrpContext,
IN PRFSD_VCB Vcb,
IN PFILE_OBJECT FileObject,
IN LONGLONG Offset,
IN LONGLONG Count );
NTSTATUS
RfsdWrite (IN PRFSD_IRP_CONTEXT IrpContext);
#endif /* _RFSD_HEADER_ */
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