src/add-ons/kernel/file_systems/bfs/bfs_control.h

   1 /*
   2  * Copyright 2001-2014, Axel Dörfler, axeld@pinc-software.de
   3  * This file may be used under the terms of the MIT License.
   4  */
   5 #ifndef BFS_CONTROL_H
   6 #define BFS_CONTROL_H
   7
   8
   9 //! additional functionality exported via ioctl()
  10
  11
  12 #ifdef FS_SHELL
  13 #       include "system_dependencies.h"
  14 #else
  15 #       include <SupportDefs.h>
  16 #endif
  17
  18
  19 /* ioctl to check the version of BFS used - parameter is a uint32 *
  20  * where the number is stored
  21  */
  22 #define BFS_IOCTL_VERSION                       14200
  23
  24 #define BFS_IOCTL_UPDATE_BOOT_BLOCK     14204
  25
  26 struct update_boot_block {
  27         uint32                  offset;
  28         const uint8*    data;
  29         uint32                  length;
  30 };
  31
  32 /* ioctls to use the "chkbfs" feature from the outside
  33  * all calls use a struct check_result as single parameter
  34  */
  35 #define BFS_IOCTL_START_CHECKING        14201
  36 #define BFS_IOCTL_STOP_CHECKING         14202
  37 #define BFS_IOCTL_CHECK_NEXT_NODE       14203
  38
  39 /* The "pass" field constants */
  40 #define BFS_CHECK_PASS_BITMAP           0
  41 #define BFS_CHECK_PASS_INDEX            1
  42
  43 /* All fields except "flags", and "name" must be set to zero before
  44  * BFS_IOCTL_START_CHECKING is called, and magic must be set.
  45  */
  46 struct check_control {
  47         uint32          magic;
  48         uint32          pass;
  49         uint32          flags;
  50         char            name[B_FILE_NAME_LENGTH];
  51         ino_t           inode;
  52         uint32          mode;
  53         uint32          errors;
  54         struct {
  55                 uint64  missing;
  56                 uint64  already_set;
  57                 uint64  freed;
  58
  59                 uint64  direct_block_runs;
  60                 uint64  indirect_block_runs;
  61                 uint64  indirect_array_blocks;
  62                 uint64  double_indirect_block_runs;
  63                 uint64  double_indirect_array_blocks;
  64                 uint64  blocks_in_direct;
  65                 uint64  blocks_in_indirect;
  66                 uint64  blocks_in_double_indirect;
  67                 uint64  partial_block_runs;
  68                 uint32  block_size;
  69         } stats;
  70         status_t        status;
  71 };
  72
  73 /* values for the flags field */
  74 #define BFS_FIX_BITMAP_ERRORS   1
  75 #define BFS_REMOVE_WRONG_TYPES  2
  76         /* files that shouldn't be part of its parent will be removed
  77          * (i.e. a directory contains an attribute, ...)
  78          * Works only if B_FIX_BITMAP_ERRORS is set, too
  79          */
  80 #define BFS_REMOVE_INVALID              4
  81         /* removes nodes that couldn't be opened at all from its parent
  82          * directory.
  83          * Also requires the B_FIX_BITMAP_ERRORS to be set.
  84          */
  85 #define BFS_FIX_NAME_MISMATCHES 8
  86 #define BFS_FIX_BPLUSTREES              16
  87
  88 /* values for the errors field */
  89 #define BFS_MISSING_BLOCKS              1
  90 #define BFS_BLOCKS_ALREADY_SET  2
  91 #define BFS_INVALID_BLOCK_RUN   4
  92 #define BFS_COULD_NOT_OPEN              8
  93 #define BFS_WRONG_TYPE                  16
  94 #define BFS_NAMES_DONT_MATCH    32
  95 #define BFS_INVALID_BPLUSTREE   64
  96
  97 /* check control magic value */
  98 #define BFS_IOCTL_CHECK_MAGIC   'BChk'
  99
 100
 101 #endif  /* BFS_CONTROL_H */