fsck/fsck.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  Copyright (C) 2020 Hyunchul Lee <hyc.lee@gmail.com>
   4  */
   5 #ifndef _FSCK_H
   6 #define _FSCK_H
   7
   8 #include "list.h"
   9
  10 typedef __u32 clus_t;
  11
  12 struct exfat_inode {
  13         struct exfat_inode      *parent;
  14         struct list_head        children;
  15         struct list_head        sibling;
  16         struct list_head        list;
  17         clus_t                  first_clus;
  18         clus_t                  last_lclus;
  19         clus_t                  last_pclus;
  20         __u16                   attr;
  21         uint64_t                size;
  22         bool                    is_contiguous;
  23         off_t                   dentry_file_offset;
  24         __le16                  name[0];        /* only for directory */
  25 };
  26
  27 #define EXFAT_NAME_MAX                  255
  28 #define NAME_BUFFER_SIZE                ((EXFAT_NAME_MAX+1)*2)
  29
  30 struct exfat_de_iter {
  31         struct exfat            *exfat;
  32         struct exfat_inode      *parent;
  33         unsigned char           *dentries;      /* cluster * 2 allocated */
  34         unsigned int            read_size;      /* cluster size */
  35         off_t                   de_file_offset; /* offset in dentries buffer */
  36         off_t                   next_read_offset;
  37         int                     max_skip_dentries;
  38 };
  39
  40 enum fsck_ui_options {
  41         FSCK_OPTS_REPAIR_ASK    = 0x01,
  42         FSCK_OPTS_REPAIR_YES    = 0x02,
  43         FSCK_OPTS_REPAIR_NO     = 0x04,
  44         FSCK_OPTS_REPAIR        = 0x07,
  45 };
  46
  47 struct exfat {
  48         enum fsck_ui_options    options;
  49         struct exfat_blk_dev    *blk_dev;
  50         struct pbr              *bs;
  51         char                    volume_label[VOLUME_LABEL_BUFFER_SIZE];
  52         struct exfat_inode      *root;
  53         struct list_head        dir_list;
  54         struct exfat_de_iter    de_iter;
  55         __u32                   *alloc_bitmap;
  56         __u64                   bit_count;
  57 };
  58
  59 #define EXFAT_CLUSTER_SIZE(pbr) (1 << ((pbr)->bsx.sect_size_bits +      \
  60                                         (pbr)->bsx.sect_per_clus_bits))
  61 #define EXFAT_SECTOR_SIZE(pbr) (1 << (pbr)->bsx.sect_size_bits)
  62
  63 #endif