#ifndef __HFS__
#define __HFS__
#define HFS_SPARSE_DEV 1
#if DEBUG
#define HFS_CHECK_LOCK_ORDER 1
#endif
#include <sys/appleapiopts.h>
#ifdef KERNEL
#ifdef __APPLE_API_PRIVATE
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/quota.h>
#include <sys/dirent.h>
#include <sys/event.h>
#include <sys/disk.h>
#include <kern/thread_call.h>
#include <kern/locks.h>
#include <vfs/vfs_journal.h>
#include <hfs/hfs_format.h>
#include <hfs/hfs_catalog.h>
#include <hfs/hfs_cnode.h>
#include <hfs/hfs_macos_defs.h>
#include <hfs/hfs_encodings.h>
#include <hfs/hfs_hotfiles.h>
#if CONFIG_HFS_ALLOC_RBTREE
#include <hfs/hfscommon/headers/HybridAllocator.h>
#endif
#define VERSION_STRING "hfs-2 (4-12-99)"
#define HFS_LINK_MAX 32767
#define HFS_MAX_DEFERED_ALLOC (1024*1024)
#define HFS_BIGFILE_SIZE (400LL * 1024LL * 1024LL)
enum { kMDBSize = 512 };
enum { kMasterDirectoryBlock = 2 };
enum { kMDBOffset = kMasterDirectoryBlock * 512 };
#define kRootDirID kHFSRootFolderID
#define kMaxLockedMetaBuffers 32
extern struct timezone gTimeZone;
#define kMaxFreeExtents 10
#define HFS_MINFREE 1
#define HFS_MAXRESERVE ((u_int64_t)(250*1024*1024))
#define HFS_ROOTVERYLOWDISKTRIGGERFRACTION 5
#define HFS_ROOTVERYLOWDISKTRIGGERLEVEL ((u_int64_t)(512*1024*1024))
#define HFS_ROOTLOWDISKTRIGGERFRACTION 10
#define HFS_ROOTLOWDISKTRIGGERLEVEL ((u_int64_t)(1024*1024*1024))
#define HFS_ROOTLOWDISKSHUTOFFFRACTION 11
#define HFS_ROOTLOWDISKSHUTOFFLEVEL ((u_int64_t)(1024*1024*1024 + 250*1024*1024))
#define HFS_VERYLOWDISKTRIGGERFRACTION 1
#define HFS_VERYLOWDISKTRIGGERLEVEL ((u_int64_t)(100*1024*1024))
#define HFS_LOWDISKTRIGGERFRACTION 2
#define HFS_LOWDISKTRIGGERLEVEL ((u_int64_t)(150*1024*1024))
#define HFS_LOWDISKSHUTOFFFRACTION 3
#define HFS_LOWDISKSHUTOFFLEVEL ((u_int64_t)(200*1024*1024))
typedef struct hfsmount {
u_int32_t hfs_flags;
u_int32_t hfs_logical_block_size;
daddr64_t hfs_logical_block_count;
daddr64_t hfs_alt_id_sector;
u_int32_t hfs_physical_block_size;
u_int32_t hfs_log_per_phys;
struct mount *hfs_mp;
struct vnode *hfs_devvp;
struct vnode * hfs_extents_vp;
struct vnode * hfs_catalog_vp;
struct vnode * hfs_allocation_vp;
struct vnode * hfs_attribute_vp;
struct vnode * hfs_startup_vp;
struct vnode * hfs_attrdata_vp;
struct cnode * hfs_extents_cp;
struct cnode * hfs_catalog_cp;
struct cnode * hfs_allocation_cp;
struct cnode * hfs_attribute_cp;
struct cnode * hfs_startup_cp;
dev_t hfs_raw_dev;
u_int32_t hfs_logBlockSize;
uid_t hfs_uid;
gid_t hfs_gid;
mode_t hfs_dir_mask;
mode_t hfs_file_mask;
u_int32_t hfs_encoding;
time_t hfs_mtime;
u_int32_t hfs_filecount;
u_int32_t hfs_dircount;
u_int32_t freeBlocks;
u_int32_t nextAllocation;
u_int32_t sparseAllocation;
u_int32_t vcbNxtCNID;
u_int32_t vcbWrCnt;
u_int64_t encodingsBitmap;
u_int16_t vcbNmFls;
u_int16_t vcbNmRtDirs;
u_int16_t vcbSigWord;
int16_t vcbFlags;
u_int32_t vcbAtrb;
u_int32_t vcbJinfoBlock;
u_int32_t localCreateDate;
time_t hfs_itime;
time_t hfs_btime;
u_int32_t blockSize;
u_int32_t totalBlocks;
u_int32_t allocLimit;
int32_t vcbClpSiz;
u_int32_t vcbFndrInfo[8];
int16_t vcbVBMSt;
int16_t vcbAlBlSt;
u_int8_t vcbVN[256];
u_int32_t volumeNameEncodingHint;
u_int32_t hfsPlusIOPosOffset;
u_int32_t vcbVBMIOSize;
u_int32_t vcbFreeExtCnt;
HFSPlusExtentDescriptor vcbFreeExt[kMaxFreeExtents];
lck_spin_t vcbFreeExtLock;
#if CONFIG_HFS_ALLOC_RBTREE
extent_tree_offset_t offset_tree;
u_int32_t offset_free_extents;
u_int32_t offset_block_end;
#endif
u_int32_t extent_tree_flags;
u_int32_t reserveBlocks;
u_int32_t loanedBlocks;
struct cat_desc hfs_private_desc[2];
struct cat_attr hfs_private_attr[2];
u_int32_t hfs_metadata_createdate;
hfs_to_unicode_func_t hfs_get_unicode;
unicode_to_hfs_func_t hfs_get_hfsname;
struct quotafile hfs_qfiles[MAXQUOTAS];
void *jnl; struct vnode *jvp; u_int32_t jnl_start; u_int32_t jnl_size;
u_int32_t hfs_jnlfileid;
u_int32_t hfs_jnlinfoblkid;
lck_rw_t hfs_global_lock;
u_int32_t hfs_global_lock_nesting;
void* hfs_global_lockowner;
u_int32_t hfs_notification_conditions;
u_int32_t hfs_freespace_notify_dangerlimit;
u_int32_t hfs_freespace_notify_warninglimit;
u_int32_t hfs_freespace_notify_desiredlevel;
time_t hfs_mount_time;
time_t hfs_last_mounted_mtime;
u_int32_t hfs_metazone_start;
u_int32_t hfs_metazone_end;
u_int32_t hfs_hotfile_start;
u_int32_t hfs_hotfile_end;
u_int32_t hfs_min_alloc_start;
u_int32_t hfs_freed_block_count;
int hfs_hotfile_freeblks;
int hfs_hotfile_maxblks;
int hfs_overflow_maxblks;
int hfs_catalog_maxblks;
lck_mtx_t hfc_mutex;
enum hfc_stage hfc_stage;
time_t hfc_timebase;
time_t hfc_timeout;
void * hfc_recdata;
int hfc_maxfiles;
struct vnode * hfc_filevp;
#if HFS_SPARSE_DEV
struct vnode * hfs_backingfs_rootvp;
u_int32_t hfs_last_backingstatfs;
int hfs_sparsebandblks;
u_int64_t hfs_backingfs_maxblocks;
#endif
size_t hfs_max_inline_attrsize;
lck_mtx_t hfs_mutex;
void *hfs_freezing_proc;
void *hfs_downgrading_proc;
lck_rw_t hfs_insync;
u_int32_t hfs_resize_blocksmoved;
u_int32_t hfs_resize_totalblocks;
u_int32_t hfs_resize_progress;
lck_mtx_t hfs_chash_mutex;
u_long hfs_cnodehash;
LIST_HEAD(cnodehashhead, cnode) *hfs_cnodehashtbl;
int32_t hfs_sync_scheduled;
int32_t hfs_sync_incomplete;
u_int64_t hfs_last_sync_request_time;
u_int64_t hfs_last_sync_time;
u_int32_t hfs_active_threads;
u_int64_t hfs_max_pending_io;
thread_call_t hfs_syncer;
} hfsmount_t;
#define HFS_META_DELAY (100)
#define HFS_MILLISEC_SCALE (1000*1000)
typedef hfsmount_t ExtendedVCB;
#define vcbLsMod hfs_mtime
#define vcbVolBkUp hfs_btime
#define extentsRefNum hfs_extents_vp
#define catalogRefNum hfs_catalog_vp
#define allocationsRefNum hfs_allocation_vp
#define vcbFilCnt hfs_filecount
#define vcbDirCnt hfs_dircount
static __inline__ void MarkVCBDirty(ExtendedVCB *vcb)
{
vcb->vcbFlags |= 0xFF00;
}
static __inline__ void MarkVCBClean(ExtendedVCB *vcb)
{
vcb->vcbFlags &= 0x00FF;
}
static __inline__ Boolean IsVCBDirty(ExtendedVCB *vcb)
{
return (vcb->vcbFlags & 0xFF00 ? true : false);
}
enum privdirtype {FILE_HARDLINKS, DIR_HARDLINKS};
#define HFS_ALLOC_RB_ENABLED 0x000001
#define HFS_ALLOC_RB_ERRORED 0x000002
#define HFS_ALLOC_RB_MZACTIVE 0x000004
#define HFS_ALLOC_RB_ACTIVE 0x000008
#define HFS_ALLOC_TREEBUILD_INFLIGHT 0x000010
#define HFS_ALLOC_TEARDOWN_INFLIGHT 0x000020
#define HFS_READ_ONLY 0x00001
#define HFS_UNKNOWN_PERMS 0x00002
#define HFS_WRITEABLE_MEDIA 0x00004
#define HFS_CLEANED_ORPHANS 0x00008
#define HFS_X 0x00010
#define HFS_CASE_SENSITIVE 0x00020
#define HFS_STANDARD 0x00040
#define HFS_METADATA_ZONE 0x00080
#define HFS_FRAGMENTED_FREESPACE 0x00100
#define HFS_NEED_JNL_RESET 0x00200
#define HFS_HAS_SPARSE_DEVICE 0x00400
#define HFS_RESIZE_IN_PROGRESS 0x00800
#define HFS_QUOTAS 0x01000
#define HFS_CREATING_BTREE 0x02000
#define HFS_SKIP_UPDATE_NEXT_ALLOCATION 0x04000
#define HFS_XATTR_EXTENTS 0x08000
#define HFS_FOLDERCOUNT 0x10000
#define HFS_VIRTUAL_DEVICE 0x20000
#define HFS_IN_CHANGEFS 0x40000
#define HFS_RDONLY_DOWNGRADE 0x80000
#define HFS_DID_CONTIG_SCAN 0x100000
#define HFS_SSD 0x400000
#define HFS_UPDATE_NEXT_ALLOCATION(hfsmp, new_nextAllocation) \
{ \
if ((hfsmp->hfs_flags & HFS_SKIP_UPDATE_NEXT_ALLOCATION) == 0)\
hfsmp->nextAllocation = new_nextAllocation; \
} \
#define HFS_MOUNT_LOCK(hfsmp, metadata) \
{ \
if ((metadata) && 1) \
lck_mtx_lock(&(hfsmp)->hfs_mutex); \
} \
#define HFS_MOUNT_UNLOCK(hfsmp, metadata) \
{ \
if ((metadata) && 1) \
lck_mtx_unlock(&(hfsmp)->hfs_mutex); \
} \
#define INC_FOLDERCOUNT(hfsmp, cattr) \
if ((hfsmp->hfs_flags & HFS_FOLDERCOUNT) && \
(cattr.ca_recflags & kHFSHasFolderCountMask)) { \
cattr.ca_dircount++; \
} \
#define DEC_FOLDERCOUNT(hfsmp, cattr) \
if ((hfsmp->hfs_flags & HFS_FOLDERCOUNT) && \
(cattr.ca_recflags & kHFSHasFolderCountMask) && \
(cattr.ca_dircount > 0)) { \
cattr.ca_dircount--; \
} \
typedef struct filefork FCB;
#define MAKE_INODE_NAME(name, size, linkno) \
(void) snprintf((name), size, "%s%d", HFS_INODE_PREFIX, (linkno))
#define HFS_INODE_PREFIX_LEN 5
#define MAKE_DIRINODE_NAME(name, size, linkno) \
(void) snprintf((name), size, "%s%d", HFS_DIRINODE_PREFIX, (linkno))
#define HFS_DIRINODE_PREFIX_LEN 4
#define MAKE_DELETED_NAME(NAME, size, FID) \
(void) snprintf((NAME), size, "%s%d", HFS_DELETE_PREFIX, (FID))
#define HFS_DELETE_PREFIX_LEN 4
#define HFS_AVERAGE_NAME_SIZE 22
#define AVERAGE_HFSDIRENTRY_SIZE (8+HFS_AVERAGE_NAME_SIZE+4)
#define STD_DIRENT_LEN(namlen) \
((sizeof(struct dirent) - (NAME_MAX+1)) + (((namlen)+1 + 3) &~ 3))
#define EXT_DIRENT_LEN(namlen) \
((sizeof(struct direntry) + (namlen) - (MAXPATHLEN-1) + 3) & ~3)
enum { kHFSPlusMaxFileNameBytes = kHFSPlusMaxFileNameChars * 3 };
#define ISHFSPLUS(VCB) ((VCB)->vcbSigWord == kHFSPlusSigWord)
#define ISHFS(VCB) ((VCB)->vcbSigWord == kHFSSigWord)
#define VTOVFS(VP) vnode_mount((VP))
#define HFSTOVFS(HFSMP) ((HFSMP)->hfs_mp)
#define VCBTOVFS(VCB) HFSTOVFS(VCB)
#define VTOHFS(VP) ((struct hfsmount *)vfs_fsprivate(vnode_mount((VP))))
#define VFSTOHFS(MP) ((struct hfsmount *)vfs_fsprivate((MP)))
#define VCBTOHFS(VCB) (VCB)
#define FCBTOHFS(FCB) ((struct hfsmount *)vfs_fsprivate(vnode_mount((FCB)->ff_cp->c_vp)))
#define VTOVCB(VP) VTOHFS(VP)
#define VFSTOVCB(MP) VFSTOHFS(MP)
#define HFSTOVCB(HFSMP) (HFSMP)
#define FCBTOVCB(FCB) FCBTOHFS(FCB)
#define E_NONE 0
#define kHFSBlockSize 512
#define HFS_PRI_SECTOR(blksize) (1024 / (blksize))
#define HFS_PRI_OFFSET(blksize) ((blksize) > 1024 ? 1024 : 0)
#define HFS_ALT_SECTOR(blksize, blkcnt) (((blkcnt) - 1) - (512 / (blksize)))
#define HFS_ALT_OFFSET(blksize) ((blksize) > 1024 ? (blksize) - 1024 : 0)
#define HFS_PHYSBLK_ROUNDDOWN(sector_num, log_per_phys) ((sector_num / log_per_phys) * log_per_phys)
#define HFS_GET_BOOT_INFO (FCNTL_FS_SPECIFIC_BASE + 0x00004)
#define HFS_SET_BOOT_INFO (FCNTL_FS_SPECIFIC_BASE + 0x00005)
#define MAC_GMT_FACTOR 2082844800UL
int hfs_vnop_readdirattr(struct vnop_readdirattr_args *);
int hfs_vnop_inactive(struct vnop_inactive_args *);
int hfs_vnop_reclaim(struct vnop_reclaim_args *);
int hfs_set_backingstore (struct vnode *vp, int val);
int hfs_is_backingstore (struct vnode *vp, int *val);
int hfs_vnop_link(struct vnop_link_args *);
int hfs_vnop_lookup(struct vnop_lookup_args *);
int hfs_vnop_search(struct vnop_searchfs_args *);
int hfs_vnop_read(struct vnop_read_args *);
int hfs_vnop_write(struct vnop_write_args *);
int hfs_vnop_ioctl(struct vnop_ioctl_args *);
int hfs_vnop_select(struct vnop_select_args *);
int hfs_vnop_strategy(struct vnop_strategy_args *);
int hfs_vnop_allocate(struct vnop_allocate_args *);
int hfs_vnop_pagein(struct vnop_pagein_args *);
int hfs_vnop_pageout(struct vnop_pageout_args *);
int hfs_vnop_bwrite(struct vnop_bwrite_args *);
int hfs_vnop_blktooff(struct vnop_blktooff_args *);
int hfs_vnop_offtoblk(struct vnop_offtoblk_args *);
int hfs_vnop_blockmap(struct vnop_blockmap_args *);
int hfs_vnop_getxattr(struct vnop_getxattr_args *);
int hfs_vnop_setxattr(struct vnop_setxattr_args *);
int hfs_vnop_removexattr(struct vnop_removexattr_args *);
int hfs_vnop_listxattr(struct vnop_listxattr_args *);
#if NAMEDSTREAMS
extern int hfs_vnop_getnamedstream(struct vnop_getnamedstream_args*);
extern int hfs_vnop_makenamedstream(struct vnop_makenamedstream_args*);
extern int hfs_vnop_removenamedstream(struct vnop_removenamedstream_args*);
#endif
time_t to_bsd_time(u_int32_t hfs_time);
u_int32_t to_hfs_time(time_t bsd_time);
u_int32_t hfs_pickencoding(const u_int16_t *src, int len);
u_int32_t hfs_getencodingbias(void);
void hfs_setencodingbias(u_int32_t bias);
void hfs_converterinit(void);
int hfs_getconverter(u_int32_t encoding, hfs_to_unicode_func_t *get_unicode,
unicode_to_hfs_func_t *get_hfsname);
int hfs_relconverter(u_int32_t encoding);
int hfs_to_utf8(ExtendedVCB *vcb, const Str31 hfs_str, ByteCount maxDstLen,
ByteCount *actualDstLen, unsigned char* dstStr);
int utf8_to_hfs(ExtendedVCB *vcb, ByteCount srcLen, const unsigned char* srcStr,
Str31 dstStr);
int mac_roman_to_utf8(const Str31 hfs_str, ByteCount maxDstLen, ByteCount *actualDstLen,
unsigned char* dstStr);
int utf8_to_mac_roman(ByteCount srcLen, const unsigned char* srcStr, Str31 dstStr);
int mac_roman_to_unicode(const Str31 hfs_str, UniChar *uni_str, u_int32_t maxCharLen, u_int32_t *usedCharLen);
int unicode_to_hfs(ExtendedVCB *vcb, ByteCount srcLen, u_int16_t* srcStr, Str31 dstStr, int retry);
void hfs_generate_volume_notifications(struct hfsmount *hfsmp);
extern int hfs_relocate(struct vnode *, u_int32_t, kauth_cred_t, struct proc *);
extern int hfs_truncate(struct vnode *, off_t, int, int, int, vfs_context_t);
extern int hfs_release_storage (struct hfsmount *hfsmp, struct filefork *datafork,
struct filefork *rsrcfork, u_int32_t fileid);
extern int hfs_prepare_release_storage (struct hfsmount *hfsmp, struct vnode *vp);
extern int hfs_bmap(struct vnode *, daddr_t, struct vnode **, daddr64_t *, unsigned int *);
extern int hfs_fsync(struct vnode *, int, int, struct proc *);
extern int hfs_access(struct vnode *, mode_t, kauth_cred_t, struct proc *);
extern int hfs_removeallattr(struct hfsmount *hfsmp, u_int32_t fileid);
extern int hfs_set_volxattr(struct hfsmount *hfsmp, unsigned int xattrtype, int state);
extern int hfs_isallocated(struct hfsmount *hfsmp, u_int32_t startingBlock, u_int32_t numBlocks);
extern int hfs_count_allocated(struct hfsmount *hfsmp, u_int32_t startBlock,
u_int32_t numBlocks, u_int32_t *alloc_count);
extern int hfs_isrbtree_active (struct hfsmount *hfsmp);
int hfs_mountroot(mount_t mp, vnode_t rvp, vfs_context_t context);
extern void hfs_sync_metadata(void *arg);
extern int hfs_vget(struct hfsmount *, cnid_t, struct vnode **, int, int);
extern void hfs_setencodingbits(struct hfsmount *hfsmp, u_int32_t encoding);
enum volop {VOL_UPDATE, VOL_MKDIR, VOL_RMDIR, VOL_MKFILE, VOL_RMFILE};
extern int hfs_volupdate(struct hfsmount *hfsmp, enum volop op, int inroot);
int hfs_flushvolumeheader(struct hfsmount *hfsmp, int waitfor, int altflush);
#define HFS_ALTFLUSH 1
extern int hfs_extendfs(struct hfsmount *, u_int64_t, vfs_context_t);
extern int hfs_truncatefs(struct hfsmount *, u_int64_t, vfs_context_t);
extern int hfs_resize_progress(struct hfsmount *, u_int32_t *);
void hfs_mark_volume_inconsistent(struct hfsmount *hfsmp);
u_int32_t BestBlockSizeFit(u_int32_t allocationBlockSize,
u_int32_t blockSizeLimit,
u_int32_t baseMultiple);
OSErr hfs_MountHFSVolume(struct hfsmount *hfsmp, HFSMasterDirectoryBlock *mdb,
struct proc *p);
OSErr hfs_MountHFSPlusVolume(struct hfsmount *hfsmp, HFSPlusVolumeHeader *vhp,
off_t embeddedOffset, u_int64_t disksize, struct proc *p, void *args, kauth_cred_t cred);
extern int hfsUnmount(struct hfsmount *hfsmp, struct proc *p);
extern int overflow_extents(struct filefork *fp);
extern int hfs_owner_rights(struct hfsmount *hfsmp, uid_t cnode_uid, kauth_cred_t cred,
struct proc *p, int invokesuperuserstatus);
extern int check_for_tracked_file(struct vnode *vp, time_t ctime, uint64_t op_type, void *arg);
extern int check_for_dataless_file(struct vnode *vp, uint64_t op_type);
int hfs_lock_global (struct hfsmount *hfsmp, enum hfslocktype locktype);
void hfs_unlock_global (struct hfsmount *hfsmp);
#define SFL_CATALOG 0x0001
#define SFL_EXTENTS 0x0002
#define SFL_BITMAP 0x0004
#define SFL_ATTRIBUTE 0x0008
#define SFL_STARTUP 0x0010
#define SFL_VALIDMASK (SFL_CATALOG | SFL_EXTENTS | SFL_BITMAP | SFL_ATTRIBUTE | SFL_STARTUP)
extern int hfs_systemfile_lock(struct hfsmount *, int, enum hfslocktype);
extern void hfs_systemfile_unlock(struct hfsmount *, int);
extern u_int32_t GetFileInfo(ExtendedVCB *vcb, u_int32_t dirid, const char *name,
struct cat_attr *fattr, struct cat_fork *forkinfo);
extern void hfs_remove_orphans(struct hfsmount *);
u_int32_t GetLogicalBlockSize(struct vnode *vp);
extern u_int32_t hfs_freeblks(struct hfsmount * hfsmp, int wantreserve);
short MacToVFSError(OSErr err);
void hfs_metadatazone_init(struct hfsmount *hfsmp, int disable);
extern directoryhint_t * hfs_getdirhint(struct cnode *, int, int);
extern void hfs_reldirhint(struct cnode *, directoryhint_t *);
extern void hfs_reldirhints(struct cnode *, int);
extern void hfs_insertdirhint(struct cnode *, directoryhint_t *);
extern int hfs_namecmp(const u_int8_t *str1, size_t len1, const u_int8_t *str2, size_t len2);
extern int hfs_early_journal_init(struct hfsmount *hfsmp, HFSPlusVolumeHeader *vhp,
void *_args, off_t embeddedOffset, daddr64_t mdb_offset,
HFSMasterDirectoryBlock *mdbp, kauth_cred_t cred);
extern int hfs_virtualmetafile(struct cnode *);
extern int hfs_start_transaction(struct hfsmount *hfsmp);
extern int hfs_end_transaction(struct hfsmount *hfsmp);
extern int hfs_journal_flush(struct hfsmount *hfsmp, boolean_t wait_for_IO);
extern void hfs_sync_ejectable(struct hfsmount *hfsmp);
extern void hfs_trim_callback(void *arg, uint32_t extent_count, const dk_extent_t *extents);
extern int hfs_erase_unused_nodes(struct hfsmount *hfsmp);
int hfs_write_access(struct vnode *vp, kauth_cred_t cred, struct proc *p, Boolean considerFlags);
int hfs_chmod(struct vnode *vp, int mode, kauth_cred_t cred, struct proc *p);
int hfs_chown(struct vnode *vp, uid_t uid, gid_t gid, kauth_cred_t cred, struct proc *p);
#define kMaxSecsForFsync 5
#define HFS_SYNCTRANS 1
extern int hfs_btsync(struct vnode *vp, int sync_transaction);
extern void replace_desc(struct cnode *cp, struct cat_desc *cdp);
extern int hfs_vgetrsrc(struct hfsmount *hfsmp, struct vnode *vp,
struct vnode **rvpp, int can_drop_lock, int error_on_unlink);
extern int hfs_update(struct vnode *, int);
#define HFS_XATTR_MAXSIZE (128 * 1024)
#define HFS_XATTR_SIZE_BITS 18
int hfs_attrkeycompare(HFSPlusAttrKey *searchKey, HFSPlusAttrKey *trialKey);
int hfs_buildattrkey(u_int32_t fileID, const char *attrname, HFSPlusAttrKey *key);
void hfs_xattr_init(struct hfsmount * hfsmp);
int file_attribute_exist(struct hfsmount *hfsmp, uint32_t fileID);
int init_attrdata_vnode(struct hfsmount *hfsmp);
int hfs_getxattr_internal(struct cnode *, struct vnop_getxattr_args *,
struct hfsmount *, u_int32_t);
int hfs_setxattr_internal(struct cnode *, caddr_t, size_t,
struct vnop_setxattr_args *, struct hfsmount *, u_int32_t);
extern int hfs_unlink(struct hfsmount *hfsmp, struct vnode *dvp, struct vnode *vp,
struct componentname *cnp, int skip_reserve);
extern int hfs_lookup_siblinglinks(struct hfsmount *hfsmp, cnid_t linkfileid,
cnid_t *prevlinkid, cnid_t *nextlinkid);
extern void hfs_privatedir_init(struct hfsmount *, enum privdirtype);
extern void hfs_savelinkorigin(cnode_t *cp, cnid_t parentcnid);
extern void hfs_relorigins(struct cnode *cp);
extern void hfs_relorigin(struct cnode *cp, cnid_t parentcnid);
extern int hfs_haslinkorigin(cnode_t *cp);
extern cnid_t hfs_currentparent(cnode_t *cp);
extern cnid_t hfs_currentcnid(cnode_t *cp);
#endif
#endif
#endif