fs/ntfs/struct.h

   1 /*
   2  * struct.h
   3  * Structure definitions
   4  *
   5  *  Copyright (C) 1997 Régis Duchesne
   6  */
   7
   8 /* Necessary forward definition */
   9 struct ntfs_inode;
  10
  11 #ifdef __FreeBSD__
  12 #include <sys/queue.h>
  13 /* Define the struct ntfs_head type */
  14 LIST_HEAD(ntfs_head,ntfs_inode);
  15 #endif
  16
  17 /* which files should be returned from a director listing */
  18 /* only short names, no hidden files */
  19 #define ngt_dos   1
  20 /* only long names, all-uppercase becomes all-lowercase, no hidden files */
  21 #define ngt_nt    2
  22 /* all names except hidden files */
  23 #define ngt_posix 3
  24 /* all entries */
  25 #define ngt_full  4
  26
  27 #ifdef NTFS_IN_LINUX_KERNEL
  28 typedef struct ntfs_sb_info ntfs_volume;
  29 #else
  30 typedef struct _ntfs_volume{
  31         /* NTFS_SB_INFO_START */
  32         /* Configuration provided by user at mount time */
  33         ntfs_uid_t uid;
  34         ntfs_gid_t gid;
  35         ntmode_t umask;
  36         unsigned int nct;
  37         void *nls_map;
  38         unsigned int ngt;
  39         /* Configuration provided by user with ntfstools */
  40         ntfs_size_t partition_bias;     /* for access to underlying device */
  41         /* Attribute definitions */
  42         ntfs_u32 at_standard_information;
  43         ntfs_u32 at_attribute_list;
  44         ntfs_u32 at_file_name;
  45         ntfs_u32 at_security_descriptor;
  46         ntfs_u32 at_data;
  47         ntfs_u32 at_index_root;
  48         ntfs_u32 at_index_allocation;
  49         ntfs_u32 at_bitmap;
  50         ntfs_u32 at_symlink; /* aka SYMBOLIC_LINK or REPARSE_POINT */
  51         /* Data read from the boot file */
  52         int blocksize;
  53         int clusterfactor;
  54         int clustersize;
  55         int mft_recordsize;
  56         int mft_clusters_per_record;
  57         int index_recordsize;
  58         int index_clusters_per_record;
  59         int mft_cluster;
  60         /* data read from special files */
  61         unsigned char *mft;
  62         unsigned short *upcase;
  63         unsigned int upcase_length;
  64         /* inodes we always hold onto */
  65         struct ntfs_inode *mft_ino;
  66         struct ntfs_inode *mftmirr;
  67         struct ntfs_inode *bitmap;
  68         /* NTFS_SB_INFO_END */
  69         union{
  70                 int fd;         /* file descriptor for the tools */
  71                 void *sb;       /* pointer to super block for the kernel */
  72         }u;
  73 #ifdef __FreeBSD__
  74         dev_t rdev;
  75         struct vnode *devvp;
  76         struct ntfs_head *inode_hash;   /* not really a hash */
  77 #endif
  78 }ntfs_volume;
  79 #endif
  80
  81 typedef struct {
  82         ntfs_cluster_t cluster;
  83         ntfs_cluster_t len;
  84 }ntfs_runlist;
  85
  86 typedef struct ntfs_attribute{
  87         int type;
  88         ntfs_u16 *name;
  89         int namelen;
  90         int attrno;
  91         int size,allocated,initialized,compsize;
  92         int compressed,resident,indexed;
  93         int cengine;
  94         union{
  95                 void *data;             /* if resident */
  96                 struct {
  97                         ntfs_runlist *runlist;
  98                         int len;
  99                 }r;
 100         }d;
 101 }ntfs_attribute;
 102
 103 /* Structure to define IO to user buffer. do_read means that
 104    the destination has to be written using fn_put, do_write means
 105    that the destination has to read using fn_get. So, do_read is
 106    from a user's point of view, while put and get are from the driver's
 107    point of view. The first argument is always the destination of the IO
 108 */
 109 #ifdef NTFS_IN_LINUX_KERNEL
 110 typedef struct ntfs_inode_info ntfs_inode;
 111 #else
 112 typedef struct ntfs_inode{
 113         ntfs_volume *vol;
 114         /* NTFS_INODE_INFO_START */
 115         int i_number;                /* should be really 48 bits */
 116         unsigned sequence_number;
 117         unsigned char* attr;         /* array of the attributes */
 118         int attr_count;              /* size of attrs[] */
 119         struct ntfs_attribute *attrs;
 120         int record_count;            /* size of records[] */
 121         /* array of the record numbers of the MFT
 122            whose attributes have been inserted in the inode */
 123         int *records;
 124         union{
 125                 struct{
 126                         int recordsize;
 127                         int clusters_per_record;
 128                 }index;
 129         } u;
 130         /* NTFS_INODE_INFO_END */
 131 #ifdef __FreeBSD__
 132         struct vnode *vp;
 133         LIST_ENTRY(ntfs_inode) h_next;
 134 #endif
 135 }ntfs_inode;
 136 #endif
 137
 138 typedef struct ntfs_io{
 139         int do_read;
 140         void (*fn_put)(struct ntfs_io *dest, void *buf, ntfs_size_t);
 141         void (*fn_get)(void *buf, struct ntfs_io *src, ntfs_size_t len);
 142         void *param;
 143         int size;
 144 }ntfs_io;
 145
 146 #if 0
 147 typedef struct {
 148         ntfs_volume *vol;
 149         ntfs_inode *ino;
 150         int type;
 151         char *name;
 152         int mftno;
 153         int start_vcn;
 154 } ntfs_attrlist_item;
 155 #endif