The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/fs/ntfs/ntfs.h

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    1 /*      $NetBSD: ntfs.h,v 1.19 2008/05/05 17:11:16 ad Exp $     */
    2 
    3 /*-
    4  * Copyright (c) 1998, 1999 Semen Ustimenko
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  *      Id: ntfs.h,v 1.5 1999/05/12 09:42:51 semenu Exp
   29  */
   30 
   31 #ifndef _NTFS_NTFS_H_
   32 #define _NTFS_NTFS_H_
   33 
   34 #if defined(_KERNEL_OPT)
   35 #include "opt_ntfs.h"
   36 #endif
   37 
   38 typedef u_int64_t cn_t;
   39 typedef u_int16_t wchar;
   40 
   41 #pragma pack(1)
   42 #define BBSIZE                  1024
   43 #define BBOFF                   ((off_t)(0))
   44 #define BBLOCK                  ((daddr_t)(0))
   45 #define NTFS_MFTINO             0
   46 #define NTFS_VOLUMEINO          3
   47 #define NTFS_ATTRDEFINO         4
   48 #define NTFS_ROOTINO            5
   49 #define NTFS_BITMAPINO          6
   50 #define NTFS_BOOTINO            7
   51 #define NTFS_BADCLUSINO         8
   52 #define NTFS_UPCASEINO          10
   53 #define NTFS_MAXFILENAME        255
   54 
   55 struct fixuphdr {
   56         u_int32_t       fh_magic;
   57         u_int16_t       fh_foff;
   58         u_int16_t       fh_fnum;
   59 };
   60 
   61 #define NTFS_AF_INRUN   0x00000001
   62 struct attrhdr {
   63         u_int32_t       a_type;
   64         u_int32_t       reclen;
   65         u_int8_t        a_flag;
   66         u_int8_t        a_namelen;
   67         u_int8_t        a_nameoff;
   68         u_int8_t        reserved1;
   69         u_int8_t        a_compression;
   70         u_int8_t        reserved2;
   71         u_int16_t       a_index;
   72 };
   73 #define NTFS_A_STD      0x10
   74 #define NTFS_A_ATTRLIST 0x20
   75 #define NTFS_A_NAME     0x30
   76 #define NTFS_A_VOLUMENAME       0x60
   77 #define NTFS_A_DATA     0x80
   78 #define NTFS_A_INDXROOT 0x90
   79 #define NTFS_A_INDX     0xA0
   80 #define NTFS_A_INDXBITMAP 0xB0
   81 
   82 #define NTFS_MAXATTRNAME        255
   83 struct attr {
   84         struct attrhdr  a_hdr;
   85         union {
   86                 struct {
   87                         u_int16_t       a_datalen;
   88                         u_int16_t       reserved1;
   89                         u_int16_t       a_dataoff;
   90                         u_int16_t       a_indexed;
   91                 }               a_S_r;
   92                 struct {
   93                         cn_t            a_vcnstart;
   94                         cn_t            a_vcnend;
   95                         u_int16_t       a_dataoff;
   96                         u_int16_t       a_compressalg;
   97                         u_int32_t       reserved1;
   98                         u_int64_t       a_allocated;
   99                         u_int64_t       a_datalen;
  100                         u_int64_t       a_initialized;
  101                 }               a_S_nr;
  102         }               a_S;
  103 };
  104 #define a_r     a_S.a_S_r
  105 #define a_nr    a_S.a_S_nr
  106 
  107 typedef struct {
  108         u_int64_t       t_create;
  109         u_int64_t       t_write;
  110         u_int64_t       t_mftwrite;
  111         u_int64_t       t_access;
  112 }               ntfs_times_t;
  113 
  114 #define NTFS_FFLAG_RDONLY       0x01LL
  115 #define NTFS_FFLAG_HIDDEN       0x02LL
  116 #define NTFS_FFLAG_SYSTEM       0x04LL
  117 #define NTFS_FFLAG_ARCHIVE      0x20LL
  118 #define NTFS_FFLAG_COMPRESSED   0x0800LL
  119 #define NTFS_FFLAG_DIR          0x10000000LL
  120 
  121 struct attr_name {
  122         u_int32_t       n_pnumber;      /* Parent ntnode */
  123         u_int32_t       reserved;
  124         ntfs_times_t    n_times;
  125         u_int64_t       n_size;
  126         u_int64_t       n_attrsz;
  127         u_int64_t       n_flag;
  128         u_int8_t        n_namelen;
  129         u_int8_t        n_nametype;
  130         u_int16_t       n_name[1];
  131 };
  132 
  133 #define NTFS_IRFLAG_INDXALLOC   0x00000001
  134 struct attr_indexroot {
  135         u_int32_t       ir_unkn1;       /* always 0x30 */
  136         u_int32_t       ir_unkn2;       /* always 0x1 */
  137         u_int32_t       ir_size;/* ??? */
  138         u_int32_t       ir_unkn3;       /* number of cluster */
  139         u_int32_t       ir_unkn4;       /* always 0x10 */
  140         u_int32_t       ir_datalen;     /* sizeof simething */
  141         u_int32_t       ir_allocated;   /* same as above */
  142         u_int16_t       ir_flag;/* ?? always 1 */
  143         u_int16_t       ir_unkn7;
  144 };
  145 
  146 struct attr_attrlist {
  147         u_int32_t       al_type;        /* Attribute type */
  148         u_int16_t       reclen;         /* length of this entry */
  149         u_int8_t        al_namelen;     /* Attribute name len */
  150         u_int8_t        al_nameoff;     /* Name offset from entry start */
  151         u_int64_t       al_vcnstart;    /* VCN number */
  152         u_int32_t       al_inumber;     /* Parent ntnode */
  153         u_int32_t       reserved;
  154         u_int16_t       al_index;       /* Attribute index in MFT record */
  155         u_int16_t       al_name[1];     /* Name */
  156 };
  157 
  158 #define NTFS_INDXMAGIC  (u_int32_t)(0x58444E49)
  159 struct attr_indexalloc {
  160         struct fixuphdr ia_fixup;
  161         u_int64_t       unknown1;
  162         cn_t            ia_bufcn;
  163         u_int16_t       ia_hdrsize;
  164         u_int16_t       unknown2;
  165         u_int32_t       ia_inuse;
  166         u_int32_t       ia_allocated;
  167 };
  168 
  169 #define NTFS_IEFLAG_SUBNODE     0x00000001
  170 #define NTFS_IEFLAG_LAST        0x00000002
  171 
  172 struct attr_indexentry {
  173         u_int32_t       ie_number;
  174         u_int32_t       unknown1;
  175         u_int16_t       reclen;
  176         u_int16_t       ie_size;
  177         u_int32_t       ie_flag;/* 1 - has subnodes, 2 - last */
  178         u_int32_t       ie_fpnumber;
  179         u_int32_t       unknown2;
  180         ntfs_times_t    ie_ftimes;
  181         u_int64_t       ie_fallocated;
  182         u_int64_t       ie_fsize;
  183         u_int64_t       ie_fflag;
  184         u_int8_t        ie_fnamelen;
  185         u_int8_t        ie_fnametype;
  186         wchar           ie_fname[NTFS_MAXFILENAME];
  187         /* cn_t         ie_bufcn;        buffer with subnodes */
  188 };
  189 
  190 #define NTFS_FILEMAGIC  (u_int32_t)(0x454C4946)
  191 #define NTFS_FRFLAG_DIR 0x0002
  192 struct filerec {
  193         struct fixuphdr fr_fixup;
  194         u_int8_t        reserved[8];
  195         u_int16_t       fr_seqnum;      /* Sequence number */
  196         u_int16_t       fr_nlink;
  197         u_int16_t       fr_attroff;     /* offset to attributes */
  198         u_int16_t       fr_flags;       /* 1-nonresident attr, 2-directory */
  199         u_int32_t       fr_size;/* hdr + attributes */
  200         u_int32_t       fr_allocated;   /* allocated length of record */
  201         u_int64_t       fr_mainrec;     /* main record */
  202         u_int16_t       fr_attrnum;     /* maximum attr number + 1 ??? */
  203 };
  204 
  205 #define NTFS_ATTRNAME_MAXLEN    0x40
  206 #define NTFS_ADFLAG_NONRES      0x0080  /* Attrib can be non resident */
  207 #define NTFS_ADFLAG_INDEX       0x0002  /* Attrib can be indexed */
  208 struct attrdef {
  209         wchar           ad_name[NTFS_ATTRNAME_MAXLEN];
  210         u_int32_t       ad_type;
  211         u_int32_t       reserved1[2];
  212         u_int32_t       ad_flag;
  213         u_int64_t       ad_minlen;
  214         u_int64_t       ad_maxlen;      /* -1 for nonlimited */
  215 };
  216 
  217 struct ntvattrdef {
  218         char            ad_name[0x40];
  219         int             ad_namelen;
  220         u_int32_t       ad_type;
  221 };
  222 
  223 #define NTFS_BBID       "NTFS    "
  224 #define NTFS_BBIDLEN    8
  225 struct bootfile {
  226         u_int8_t        reserved1[3];   /* asm jmp near ... */
  227         u_int8_t        bf_sysid[8];    /* 'NTFS    ' */
  228         u_int16_t       bf_bps;         /* bytes per sector */
  229         u_int8_t        bf_spc;         /* sectors per cluster */
  230         u_int8_t        reserved2[7];   /* unused (zeroed) */
  231         u_int8_t        bf_media;       /* media desc. (0xF8) */
  232         u_int8_t        reserved3[2];
  233         u_int16_t       bf_spt;         /* sectors per track */
  234         u_int16_t       bf_heads;       /* number of heads */
  235         u_int8_t        reserver4[12];
  236         u_int64_t       bf_spv;         /* sectors per volume */
  237         cn_t            bf_mftcn;       /* $MFT cluster number */
  238         cn_t            bf_mftmirrcn;   /* $MFTMirr cn */
  239         u_int8_t        bf_mftrecsz;    /* MFT record size (clust) */
  240                                         /* 0xF6 inducates 1/4 */
  241         u_int32_t       bf_ibsz;        /* index buffer size */
  242         u_int32_t       bf_volsn;       /* volume ser. num. */
  243 };
  244 
  245 #pragma pack()
  246 
  247 typedef wchar (ntfs_wget_func_t)(const char **, size_t *);
  248 typedef int (ntfs_wput_func_t)(char *, size_t, wchar);
  249 typedef int (ntfs_wcmp_func_t)(wchar, wchar);
  250 
  251 #define NTFS_SYSNODESNUM        0x0B
  252 struct ntfsmount {
  253         struct mount   *ntm_mountp;     /* filesystem vfs structure */
  254         struct bootfile ntm_bootfile;
  255         dev_t           ntm_dev;        /* device mounted */
  256         struct vnode   *ntm_devvp;      /* block device mounted vnode */
  257         struct vnode   *ntm_sysvn[NTFS_SYSNODESNUM];
  258         u_int32_t       ntm_bpmftrec;
  259         uid_t           ntm_uid;
  260         gid_t           ntm_gid;
  261         mode_t          ntm_mode;
  262         u_long          ntm_flag;
  263         cn_t            ntm_cfree;
  264         struct ntvattrdef *ntm_ad;
  265         int             ntm_adnum;
  266         ntfs_wget_func_t *ntm_wget;     /* decode string to Unicode string */
  267         ntfs_wput_func_t *ntm_wput;     /* encode Unicode string to string */
  268         ntfs_wcmp_func_t *ntm_wcmp;     /* compare to wide characters */
  269 };
  270 
  271 #define ntm_mftcn       ntm_bootfile.bf_mftcn
  272 #define ntm_mftmirrcn   ntm_bootfile.bf_mftmirrcn
  273 #define ntm_mftrecsz    ntm_bootfile.bf_mftrecsz
  274 #define ntm_spc         ntm_bootfile.bf_spc
  275 #define ntm_bps         ntm_bootfile.bf_bps
  276 
  277 #define NTFS_NEXTREC(s, type) ((type)(((char *) s) + (s)->reclen))
  278 
  279 /* Convert mount ptr to ntfsmount ptr. */
  280 #define VFSTONTFS(mp)   ((struct ntfsmount *)((mp)->mnt_data))
  281 #define VTONT(v)        FTONT(VTOF(v))
  282 #define VTOF(v)         ((struct fnode *)((v)->v_data))
  283 #define FTOV(f)         ((f)->f_vp)
  284 #define FTONT(f)        ((f)->f_ip)
  285 #define ntfs_cntobn(cn) (daddr_t)((cn) * (ntmp->ntm_spc))
  286 #define ntfs_cntob(cn)  (off_t)((cn) * (ntmp)->ntm_spc * (ntmp)->ntm_bps)
  287 #define ntfs_btocn(off) (cn_t)((off) / ((ntmp)->ntm_spc * (ntmp)->ntm_bps))
  288 #define ntfs_btocl(off) (cn_t)((off + ntfs_cntob(1) - 1) / ((ntmp)->ntm_spc * (ntmp)->ntm_bps))
  289 #define ntfs_btocnoff(off)      (off_t)((off) % ((ntmp)->ntm_spc * (ntmp)->ntm_bps))
  290 #define ntfs_bntob(bn)  (daddr_t)((bn) * (ntmp)->ntm_bps)
  291 
  292 #define ntfs_bpbl       (daddr_t)((ntmp)->ntm_bps)
  293 
  294 #ifdef _KERNEL
  295 MALLOC_DECLARE(M_NTFSMNT);
  296 MALLOC_DECLARE(M_NTFSNTNODE);
  297 MALLOC_DECLARE(M_NTFSFNODE);
  298 MALLOC_DECLARE(M_NTFSDIR);
  299 MALLOC_DECLARE(M_NTFSNTVATTR);
  300 MALLOC_DECLARE(M_NTFSRDATA);
  301 MALLOC_DECLARE(M_NTFSDECOMP);
  302 MALLOC_DECLARE(M_NTFSRUN);
  303 #endif /* _KERNEL */
  304 
  305 typedef int (vop_t)(void *);
  306 #define HASHINIT(a, b, c, d)    hashinit((a), HASH_LIST, (b), (c), (d))
  307 #define bqrelse(bp)             brelse(bp, 0)
  308 
  309 #ifdef NTFS_DEBUG
  310 extern int ntfs_debug;
  311 #define DPRINTF(X, Y) do { if(ntfs_debug >= (X)) printf Y; } while(0)
  312 #define dprintf(a) DPRINTF(1, a)
  313 #define ddprintf(a) DPRINTF(2, a)
  314 #else /* NTFS_DEBUG */
  315 #define DPRINTF(X, Y)
  316 #define dprintf(a)
  317 #define ddprintf(a)
  318 #endif
  319 
  320 extern vop_t  **ntfs_vnodeop_p;
  321 #endif /* _NTFS_NTFS_H_ */

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