livefiles_hfs_plugin/lf_hfs_vfsutils.h

   1 /*  Copyright © 2017-2018 Apple Inc. All rights reserved.
   2  *
   3  *  lf_hfs_vfsutils.h
   4  *  livefiles_hfs
   5  *
   6  *  Created by Yakov Ben Zaken on 20/03/2018.
   7  */
   8
   9 #ifndef lf_hfs_vfsutils_h
  10 #define lf_hfs_vfsutils_h
  11
  12 #include "lf_hfs.h"
  13
  14 u_int32_t   BestBlockSizeFit(u_int32_t allocationBlockSize, u_int32_t blockSizeLimit, u_int32_t baseMultiple);
  15 int         hfs_MountHFSPlusVolume(struct hfsmount *hfsmp, HFSPlusVolumeHeader *vhp, off_t embeddedOffset, u_int64_t disksize, bool bFailForDirty);
  16 int         hfs_CollectBtreeStats(struct hfsmount *hfsmp, HFSPlusVolumeHeader *vhp, off_t embeddedOffset, void *args);
  17 int         hfs_ValidateHFSPlusVolumeHeader(struct hfsmount *hfsmp, HFSPlusVolumeHeader *vhp);
  18 int         hfs_start_transaction(struct hfsmount *hfsmp);
  19 int         hfs_end_transaction(struct hfsmount *hfsmp);
  20 void*       hfs_malloc( size_t size );
  21 void        hfs_free( void* ptr );
  22 void*       hfs_mallocz( size_t size);
  23 int         hfsUnmount( register struct hfsmount *hfsmp);
  24 void        hfs_lock_mount(struct hfsmount *hfsmp);
  25 void        hfs_unlock_mount(struct hfsmount *hfsmp);
  26 int         hfs_systemfile_lock(struct hfsmount *hfsmp, int flags, enum hfs_locktype locktype);
  27 void        hfs_systemfile_unlock(struct hfsmount *hfsmp, int flags);
  28 u_int32_t   hfs_freeblks(struct hfsmount * hfsmp, int wantreserve);
  29 short       MacToVFSError(OSErr err);
  30
  31 void hfs_reldirhint(struct cnode *dcp, directoryhint_t * relhint);
  32 void hfs_insertdirhint(struct cnode *dcp, directoryhint_t * hint);
  33 void hfs_reldirhints(struct cnode *dcp, int stale_hints_only);
  34
  35 directoryhint_t* hfs_getdirhint(struct cnode *dcp, int index, int detach);
  36
  37 int  hfs_systemfile_lock(struct hfsmount *hfsmp, int flags, enum hfs_locktype locktype);
  38 void hfs_systemfile_unlock(struct hfsmount *hfsmp, int flags);
  39 bool overflow_extents(struct filefork *fp);
  40 int  hfs_namecmp(const u_int8_t *str1, size_t len1, const u_int8_t *str2, size_t len2);
  41 int  hfs_strstr(const u_int8_t *str1, size_t len1, const u_int8_t *str2, size_t len2);
  42 int  hfs_apendixcmp(const u_int8_t *str1, size_t len1, const u_int8_t *str2, size_t len2);
  43 void hfs_remove_orphans(struct hfsmount * hfsmp);
  44 int  hfs_erase_unused_nodes(struct hfsmount *hfsmp);
  45
  46 int hfs_lock_global (struct hfsmount *hfsmp, enum hfs_locktype locktype);
  47 void hfs_unlock_global (struct hfsmount *hfsmp);
  48
  49
  50 // Journaing
  51 int hfs_early_journal_init(struct hfsmount *hfsmp, HFSPlusVolumeHeader *vhp,
  52                                            void *_args, off_t embeddedOffset, daddr64_t mdb_offset,
  53                                            HFSMasterDirectoryBlock *mdbp);
  54 errno_t hfs_flush(struct hfsmount *hfsmp, hfs_flush_mode_t mode);
  55
  56 #endif /* lf_hfs_vfsutils_h */