ReactOS 0.4.15-dev-8348-gc1b9bb5
ext2_fs.h
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1/*
2 * linux/include/linux/ext2_fs.h
3 *
4 * Copyright (C) 1992, 1993, 1994, 1995
5 * Remy Card (card@masi.ibp.fr)
6 * Laboratoire MASI - Institut Blaise Pascal
7 * Universite Pierre et Marie Curie (Paris VI)
8 *
9 * from
10 *
11 * linux/include/linux/minix_fs.h
12 *
13 * Copyright f(C) 1991, 1992 Linus Torvalds
14 */
15
16#pragma once
17
18#include "types.h" /* Changed from linux/types.h */
19
20/*
21 * The second extended filesystem constants/structures
22 */
23
24/*
25 * Define EXT2FS_DEBUG to produce debug messages
26 */
27#undef EXT2FS_DEBUG
28
29/*
30 * Define EXT2_PREALLOCATE to preallocate data blocks for expanding files
31 */
32#define EXT2_PREALLOCATE
33#define EXT2_DEFAULT_PREALLOC_BLOCKS 8
34
35/*
36 * The second extended file system version
37 */
38#define EXT2FS_DATE "95/08/09"
39#define EXT2FS_VERSION "0.5b"
40
41/*
42 * Special inodes numbers
43 */
44#define EXT2_BAD_INO 1 /* Bad blocks inode */
45#define EXT2_ROOT_INO 2 /* Root inode */
46#define EXT2_ACL_IDX_INO 3 /* ACL inode */
47#define EXT2_ACL_DATA_INO 4 /* ACL inode */
48#define EXT2_BOOT_LOADER_INO 5 /* Boot loader inode */
49#define EXT2_UNDEL_DIR_INO 6 /* Undelete directory inode */
50#define EXT2_RESIZE_INO 7 /* Reserved group descriptors inode */
51#define EXT2_JOURNAL_INO 8 /* Journal inode */
52
53/* First non-reserved inode for old ext2 filesystems */
54#define EXT2_GOOD_OLD_FIRST_INO 11
55
56/*
57 * The second extended file system magic number
58 */
59#define EXT2_SUPER_MAGIC 0xEF53
60
61/*
62 * Maximal count of links to a file
63 */
64#define EXT2_LINK_MAX 32000
65
66/*
67 * Macro-instructions used to manage several block sizes
68 */
69#define EXT2_MIN_BLOCK_SIZE 1024
70#define EXT2_MAX_BLOCK_SIZE 4096
71#define EXT2_MIN_BLOCK_LOG_SIZE 10
72#ifdef __KERNEL__
73# define EXT2_BLOCK_SIZE(s) ((s)->s_blocksize)
74#else
75# define EXT2_BLOCK_SIZE(s) (EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size)
76#endif
77#define EXT2_ACLE_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_acl_entry))
78#define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (__u32))
79#ifdef __KERNEL__
80# define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
81#else
82# define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
83#endif
84#ifdef __KERNEL__
85#define EXT2_ADDR_PER_BLOCK_BITS(s) ((s)->u.ext2_sb.s_addr_per_block_bits)
86#define EXT2_INODE_SIZE(s) ((s)->u.ext2_sb.s_inode_size)
87#define EXT2_FIRST_INO(s) ((s)->u.ext2_sb.s_first_ino)
88#else
89#define EXT2_INODE_SIZE(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \
90 EXT2_GOOD_OLD_INODE_SIZE : \
91 (s)->s_inode_size)
92#define EXT2_FIRST_INO(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \
93 EXT2_GOOD_OLD_FIRST_INO : \
94 (s)->s_first_ino)
95#endif
96
97/*
98 * Macro-instructions used to manage fragments
99 */
100#define EXT2_MIN_FRAG_SIZE 1024
101#define EXT2_MAX_FRAG_SIZE 4096
102#define EXT2_MIN_FRAG_LOG_SIZE 10
103#ifdef __KERNEL__
104# define EXT2_FRAG_SIZE(s) ((s)->u.ext2_sb.s_frag_size)
105# define EXT2_FRAGS_PER_BLOCK(s) ((s)->u.ext2_sb.s_frags_per_block)
106#else
107# define EXT2_FRAG_SIZE(s) (EXT2_MIN_FRAG_SIZE << (s)->s_log_frag_size)
108# define EXT2_FRAGS_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / EXT2_FRAG_SIZE(s))
109#endif
110
111/*
112 * ACL structures
113 */
114struct ext2_acl_header /* Header of Access Control Lists */
115{
120};
121
122struct ext2_acl_entry /* Access Control List Entry */
123{
125 __u16 acle_perms; /* Access permissions */
126 __u16 acle_type; /* Type of entry */
127 __u16 acle_tag; /* User or group identity */
129 __u32 acle_next; /* Pointer on next entry for the */
130 /* same inode or on next free entry */
131};
132
133/*
134 * Structure of a blocks group descriptor
135 */
136struct ext2_group_desc
137{
138 __u32 bg_block_bitmap; /* Blocks bitmap block */
139 __u32 bg_inode_bitmap; /* Inodes bitmap block */
140 __u32 bg_inode_table; /* Inodes table block */
141 __u16 bg_free_blocks_count; /* Free blocks count */
142 __u16 bg_free_inodes_count; /* Free inodes count */
143 __u16 bg_used_dirs_count; /* Directories count */
146};
147
148/*
149 * Data structures used by the directory indexing feature
150 *
151 * Note: all of the multibyte integer fields are little endian.
152 */
153
154/*
155 * Note: dx_root_info is laid out so that if it should somehow get
156 * overlaid by a dirent the two low bits of the hash version will be
157 * zero. Therefore, the hash version mod 4 should never be 0.
158 * Sincerely, the paranoia department.
159 */
162 __u8 hash_version; /* 0 now, 1 at release */
166};
167
171};
172
176};
177
178
179/*
180 * Macro-instructions used to manage group descriptors
181 */
182#ifdef __KERNEL__
183# define EXT2_BLOCKS_PER_GROUP(s) ((s)->u.ext2_sb.s_blocks_per_group)
184# define EXT2_DESC_PER_BLOCK(s) ((s)->u.ext2_sb.s_desc_per_block)
185# define EXT2_INODES_PER_GROUP(s) ((s)->u.ext2_sb.s_inodes_per_group)
186# define EXT2_DESC_PER_BLOCK_BITS(s) ((s)->u.ext2_sb.s_desc_per_block_bits)
187#else
188# define EXT2_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group)
189# define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_group_desc))
190# define EXT2_INODES_PER_GROUP(s) ((s)->s_inodes_per_group)
191#endif
192
193/*
194 * Constants relative to the data blocks
195 */
196#define EXT2_NDIR_BLOCKS 12
197#define EXT2_IND_BLOCK EXT2_NDIR_BLOCKS
198#define EXT2_DIND_BLOCK (EXT2_IND_BLOCK + 1)
199#define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1)
200#define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1)
201
202/*
203 * Inode flags
204 */
205#define EXT2_SECRM_FL 0x00000001 /* Secure deletion */
206#define EXT2_UNRM_FL 0x00000002 /* Undelete */
207#define EXT2_COMPR_FL 0x00000004 /* Compress file */
208#define EXT2_SYNC_FL 0x00000008 /* Synchronous updates */
209#define EXT2_IMMUTABLE_FL 0x00000010 /* Immutable file */
210#define EXT2_APPEND_FL 0x00000020 /* writes to file may only append */
211#define EXT2_NODUMP_FL 0x00000040 /* do not dump file */
212#define EXT2_NOATIME_FL 0x00000080 /* do not update atime */
213/* Reserved for compression usage... */
214#define EXT2_DIRTY_FL 0x00000100
215#define EXT2_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
216#define EXT2_NOCOMPR_FL 0x00000400 /* Access raw compressed data */
217#define EXT2_ECOMPR_FL 0x00000800 /* Compression error */
218/* End compression flags --- maybe not all used */
219#define EXT2_BTREE_FL 0x00001000 /* btree format dir */
220#define EXT2_INDEX_FL 0x00001000 /* hash-indexed directory */
221#define EXT2_IMAGIC_FL 0x00002000
222#define EXT3_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
223#define EXT2_NOTAIL_FL 0x00008000 /* file tail should not be merged */
224#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
225
226#define EXT2_FL_USER_VISIBLE 0x0000DFFF /* User visible flags */
227#define EXT2_FL_USER_MODIFIABLE 0x000080FF /* User modifiable flags */
228
229/*
230 * ioctl commands
231 */
232#define EXT2_IOC_GETFLAGS _IOR('f', 1, long)
233#define EXT2_IOC_SETFLAGS _IOW('f', 2, long)
234#define EXT2_IOC_GETVERSION _IOR('v', 1, long)
235#define EXT2_IOC_SETVERSION _IOW('v', 2, long)
236
237/*
238 * Structure of an inode on the disk
239 */
240struct ext2_inode {
241 __u16 i_mode; /* File mode */
242 __u16 i_uid; /* Low 16 bits of Owner Uid */
243 __u32 i_size; /* Size in bytes */
244 __u32 i_atime; /* Access time */
245 __u32 i_ctime; /* Creation time */
246 __u32 i_mtime; /* Modification time */
247 __u32 i_dtime; /* Deletion Time */
248 __u16 i_gid; /* Low 16 bits of Group Id */
249 __u16 i_links_count; /* Links count */
250 __u32 i_blocks; /* Blocks count */
251 __u32 i_flags; /* File flags */
252 union {
253 struct {
256 struct {
259 struct {
262 } osd1; /* OS dependent 1 */
263 __u32 i_block[EXT2_N_BLOCKS];/* Pointers to blocks */
264 __u32 i_generation; /* File version (for NFS) */
265 __u32 i_file_acl; /* File ACL */
266 __u32 i_dir_acl; /* Directory ACL */
267 __u32 i_faddr; /* Fragment address */
268 union {
269 struct {
270 __u8 l_i_frag; /* Fragment number */
271 __u8 l_i_fsize; /* Fragment size */
273 __u16 l_i_uid_high; /* these 2 fields */
274 __u16 l_i_gid_high; /* were reserved2[0] */
277 struct {
278 __u8 h_i_frag; /* Fragment number */
279 __u8 h_i_fsize; /* Fragment size */
285 struct {
286 __u8 m_i_frag; /* Fragment number */
287 __u8 m_i_fsize; /* Fragment size */
291 } osd2; /* OS dependent 2 */
292};
293
294#define i_size_high i_dir_acl
295
296#if defined(__KERNEL__) || defined(__linux__)
297#define i_reserved1 osd1.linux1.l_i_reserved1
298#define i_frag osd2.linux2.l_i_frag
299#define i_fsize osd2.linux2.l_i_fsize
300#define i_uid_low i_uid
301#define i_gid_low i_gid
302#define i_uid_high osd2.linux2.l_i_uid_high
303#define i_gid_high osd2.linux2.l_i_gid_high
304#define i_reserved2 osd2.linux2.l_i_reserved2
305
306#elif defined(__GNU__)
307
308#define i_translator osd1.hurd1.h_i_translator
309#define i_frag osd2.hurd2.h_i_frag;
310#define i_fsize osd2.hurd2.h_i_fsize;
311#define i_uid_high osd2.hurd2.h_i_uid_high
312#define i_gid_high osd2.hurd2.h_i_gid_high
313#define i_author osd2.hurd2.h_i_author
314
315#elif defined(__masix__)
316
317#define i_reserved1 osd1.masix1.m_i_reserved1
318#define i_frag osd2.masix2.m_i_frag
319#define i_fsize osd2.masix2.m_i_fsize
320#define i_reserved2 osd2.masix2.m_i_reserved2
321
322#endif /* defined(__KERNEL) || defined(__linux__) */
323
324/*
325 * File system states
326 */
327#define EXT2_VALID_FS 0x0001 /* Unmounted cleanly */
328#define EXT2_ERROR_FS 0x0002 /* Errors detected */
329
330/*
331 * Mount flags
332 */
333#define EXT2_MOUNT_CHECK 0x0001 /* Do mount-time checks */
334#define EXT2_MOUNT_GRPID 0x0004 /* Create files with directory's group */
335#define EXT2_MOUNT_DEBUG 0x0008 /* Some debugging messages */
336#define EXT2_MOUNT_ERRORS_CONT 0x0010 /* Continue on errors */
337#define EXT2_MOUNT_ERRORS_RO 0x0020 /* Remount fs ro on errors */
338#define EXT2_MOUNT_ERRORS_PANIC 0x0040 /* Panic on errors */
339#define EXT2_MOUNT_MINIX_DF 0x0080 /* Mimics the Minix statfs */
340#define EXT2_MOUNT_NO_UID32 0x0200 /* Disable 32-bit UIDs */
341
342#define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt
343#define set_opt(o, opt) o |= EXT2_MOUNT_##opt
344#define test_opt(sb, opt) ((sb)->u.ext2_sb.s_mount_opt & \
345 EXT2_MOUNT_##opt)
346/*
347 * Maximal mount counts between two filesystem checks
348 */
349#define EXT2_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */
350#define EXT2_DFL_CHECKINTERVAL 0 /* Don't use interval check */
351
352/*
353 * Behaviour when detecting errors
354 */
355#define EXT2_ERRORS_CONTINUE 1 /* Continue execution */
356#define EXT2_ERRORS_RO 2 /* Remount fs read-only */
357#define EXT2_ERRORS_PANIC 3 /* Panic */
358#define EXT2_ERRORS_DEFAULT EXT2_ERRORS_CONTINUE
359
360/*
361 * Structure of the super block
362 */
363struct ext2_super_block {
364 __u32 s_inodes_count; /* Inodes count */
365 __u32 s_blocks_count; /* Blocks count */
366 __u32 s_r_blocks_count; /* Reserved blocks count */
367 __u32 s_free_blocks_count; /* Free blocks count */
368 __u32 s_free_inodes_count; /* Free inodes count */
369 __u32 s_first_data_block; /* First Data Block */
370 __u32 s_log_block_size; /* Block size */
371 __s32 s_log_frag_size; /* Fragment size */
372 __u32 s_blocks_per_group; /* # Blocks per group */
373 __u32 s_frags_per_group; /* # Fragments per group */
374 __u32 s_inodes_per_group; /* # Inodes per group */
375 __u32 s_mtime; /* Mount time */
376 __u32 s_wtime; /* Write time */
377 __u16 s_mnt_count; /* Mount count */
378 __s16 s_max_mnt_count; /* Maximal mount count */
379 __u16 s_magic; /* Magic signature */
380 __u16 s_state; /* File system state */
381 __u16 s_errors; /* Behaviour when detecting errors */
382 __u16 s_minor_rev_level; /* minor revision level */
383 __u32 s_lastcheck; /* time of last check */
384 __u32 s_checkinterval; /* max. time between checks */
385 __u32 s_creator_os; /* OS */
386 __u32 s_rev_level; /* Revision level */
387 __u16 s_def_resuid; /* Default uid for reserved blocks */
388 __u16 s_def_resgid; /* Default gid for reserved blocks */
389 /*
390 * These fields are for EXT2_DYNAMIC_REV superblocks only.
391 *
392 * Note: the difference between the compatible feature set and
393 * the incompatible feature set is that if there is a bit set
394 * in the incompatible feature set that the kernel doesn't
395 * know about, it should refuse to mount the filesystem.
396 *
397 * e2fsck's requirements are more strict; if it doesn't know
398 * about a feature in either the compatible or incompatible
399 * feature set, it must abort and not try to meddle with
400 * things it doesn't understand...
401 */
402 __u32 s_first_ino; /* First non-reserved inode */
403 __u16 s_inode_size; /* size of inode structure */
404 __u16 s_block_group_nr; /* block group # of this superblock */
405 __u32 s_feature_compat; /* compatible feature set */
406 __u32 s_feature_incompat; /* incompatible feature set */
407 __u32 s_feature_ro_compat; /* readonly-compatible feature set */
408 __u8 s_uuid[16]; /* 128-bit uuid for volume */
409 char s_volume_name[16]; /* volume name */
410 char s_last_mounted[64]; /* directory where last mounted */
411 __u32 s_algorithm_usage_bitmap; /* For compression */
412 /*
413 * Performance hints. Directory preallocation should only
414 * happen if the EXT2_FEATURE_COMPAT_DIR_PREALLOC flag is on.
415 */
416 __u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/
417 __u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */
419 /*
420 * Journaling support valid if EXT2_FEATURE_COMPAT_HAS_JOURNAL set.
421 */
422 __u8 s_journal_uuid[16]; /* uuid of journal superblock */
423 __u32 s_journal_inum; /* inode number of journal file */
424 __u32 s_journal_dev; /* device number of journal file */
425 __u32 s_last_orphan; /* start of list of inodes to delete */
426
427 __u32 s_reserved[197]; /* Padding to the end of the block */
428};
429
430#ifdef __KERNEL__
431#define EXT2_SB(sb) (&((sb)->u.ext2_sb))
432#else
433/* Assume that user mode programs are passing in an ext2fs superblock, not
434 * a kernel struct super_block. This will allow us to call the feature-test
435 * macros from user land. */
436#define EXT2_SB(sb) (sb)
437#endif
438
439/*
440 * Codes for operating systems
441 */
442#define EXT2_OS_LINUX 0
443#define EXT2_OS_HURD 1
444#define EXT2_OS_MASIX 2
445#define EXT2_OS_FREEBSD 3
446#define EXT2_OS_LITES 4
447#define EXT2_OS_WINNT 5
448
449/*
450 * Revision levels
451 */
452#define EXT2_GOOD_OLD_REV 0 /* The good old (original) format */
453#define EXT2_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
454
455#define EXT2_CURRENT_REV EXT2_GOOD_OLD_REV
456#define EXT2_MAX_SUPP_REV EXT2_DYNAMIC_REV
457
458#define EXT2_GOOD_OLD_INODE_SIZE 128
459
460/*
461 * Feature set definitions
462 */
463
464#define EXT2_HAS_COMPAT_FEATURE(sb,mask) \
465 ( EXT2_SB(sb)->s_feature_compat & (mask) )
466#define EXT2_HAS_RO_COMPAT_FEATURE(sb,mask) \
467 ( EXT2_SB(sb)->s_feature_ro_compat & (mask) )
468#define EXT2_HAS_INCOMPAT_FEATURE(sb,mask) \
469 ( EXT2_SB(sb)->s_feature_incompat & (mask) )
470
471#define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001
472#define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002
473#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
474#define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008
475#define EXT2_FEATURE_COMPAT_RESIZE_INODE 0x0010
476#define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020
477
478#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
479#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
480#define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
481
482#define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001
483#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
484#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
485#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
486
487#define EXT2_FEATURE_COMPAT_SUPP 0
488#define EXT2_FEATURE_INCOMPAT_SUPP EXT2_FEATURE_INCOMPAT_FILETYPE
489#define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \
490 EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \
491 EXT2_FEATURE_RO_COMPAT_BTREE_DIR)
492
493/*
494 * Default values for user and/or group using reserved blocks
495 */
496#define EXT2_DEF_RESUID 0
497#define EXT2_DEF_RESGID 0
498
499/*
500 * Structure of a directory entry
501 */
502#define EXT2_NAME_LEN 255
503
504struct ext2_dir_entry {
505 __u32 inode; /* Inode number */
506 __u16 rec_len; /* Directory entry length */
507 __u16 name_len; /* Name length */
508 char name[EXT2_NAME_LEN]; /* File name */
509};
510
511/*
512 * The new version of the directory entry. Since EXT2 structures are
513 * stored in intel byte order, and the name_len field could never be
514 * bigger than 255 chars, it's safe to reclaim the extra byte for the
515 * file_type field.
516 */
517struct ext2_dir_entry_2 {
518 __u32 inode; /* Inode number */
519 __u16 rec_len; /* Directory entry length */
520 __u8 name_len; /* Name length */
522 char name[EXT2_NAME_LEN]; /* File name */
523};
524
525/*
526 * Ext2 directory file types. Only the low 3 bits are used. The
527 * other bits are reserved for now.
528 */
529#define EXT2_FT_UNKNOWN 0
530#define EXT2_FT_REG_FILE 1
531#define EXT2_FT_DIR 2
532#define EXT2_FT_CHRDEV 3
533#define EXT2_FT_BLKDEV 4
534#define EXT2_FT_FIFO 5
535#define EXT2_FT_SOCK 6
536#define EXT2_FT_SYMLINK 7
537
538#define EXT2_FT_MAX 8
539
540/*
541 * EXT2_DIR_PAD defines the directory entries boundaries
542 *
543 * NOTE: It must be a multiple of 4
544 */
545#define EXT2_DIR_PAD 4
546#define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1)
547#define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) & \
548 ~EXT2_DIR_ROUND)
549
550#ifdef __KERNEL__
551/*
552 * Function prototypes
553 */
554
555/*
556 * Ok, these declarations are also in <linux/kernel.h> but none of the
557 * ext2 source programs needs to include it so they are duplicated here.
558 */
559# define NORET_TYPE
560# define ATTRIB_NORET __attribute__((noreturn))
561# define NORET_AND noreturn,
562
563/* acl.c */
564extern int ext2_permission (struct inode *, int);
565
566/* balloc.c */
567extern int ext2_bg_has_super(struct super_block *sb, int group);
568extern unsigned long ext2_bg_num_gdb(struct super_block *sb, int group);
569extern int ext2_new_block (const struct inode *, unsigned long,
570 __u32 *, __u32 *, int *);
571extern void ext2_free_blocks (const struct inode *, unsigned long,
572 unsigned long);
573extern unsigned long ext2_count_free_blocks (struct super_block *);
574extern void ext2_check_blocks_bitmap (struct super_block *);
575extern struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
576 unsigned int block_group,
577 struct buffer_head ** bh);
578
579/* bitmap.c */
580extern unsigned long ext2_count_free (struct buffer_head *, unsigned);
581
582/* dir.c */
583extern int ext2_check_dir_entry (const char *, struct inode *,
584 struct ext2_dir_entry_2 *, struct buffer_head *,
585 unsigned long);
586
587/* file.c */
588extern int ext2_read (struct inode *, struct file *, char *, int);
589extern int ext2_write (struct inode *, struct file *, char *, int);
590
591/* fsync.c */
592extern int ext2_sync_file (struct file *, struct dentry *, int);
593extern int ext2_fsync_inode (struct inode *, int);
594
595/* ialloc.c */
596extern struct inode * ext2_new_inode (const struct inode *, int);
597extern void ext2_free_inode (struct inode *);
598extern unsigned long ext2_count_free_inodes (struct super_block *);
599extern void ext2_check_inodes_bitmap (struct super_block *);
600
601/* inode.c */
602
603extern struct buffer_head * ext2_getblk (struct inode *, long, int, int *);
604extern struct buffer_head * ext2_bread (struct inode *, int, int, int *);
605
606extern void ext2_read_inode (struct inode *);
607extern void ext2_write_inode (struct inode *, int);
608extern void ext2_put_inode (struct inode *);
609extern void ext2_delete_inode (struct inode *);
610extern int ext2_sync_inode (struct inode *);
611extern void ext2_discard_prealloc (struct inode *);
612
613/* ioctl.c */
614extern int ext2_ioctl (struct inode *, struct file *, unsigned int,
615 unsigned long);
616
617/* namei.c */
618extern struct inode_operations ext2_dir_inode_operations;
619
620/* super.c */
621extern void ext2_error (struct super_block *, const char *, const char *, ...)
622 __attribute__ ((format (printf, 3, 4)));
623extern NORET_TYPE void ext2_panic (struct super_block *, const char *,
624 const char *, ...)
625 __attribute__ ((NORET_AND format (printf, 3, 4)));
626extern void ext2_warning (struct super_block *, const char *, const char *, ...)
627 __attribute__ ((format (printf, 3, 4)));
629extern void ext2_put_super (struct super_block *);
630extern void ext2_write_super (struct super_block *);
631extern int ext2_remount (struct super_block *, int *, char *);
632extern struct super_block * ext2_read_super (struct super_block *,void *,int);
633extern int ext2_statfs (struct super_block *, struct statfs *);
634
635/* truncate.c */
636extern void ext2_truncate (struct inode *);
637
638/*
639 * Inodes and files operations
640 */
641
642/* dir.c */
643extern struct file_operations ext2_dir_operations;
644
645/* file.c */
646extern struct inode_operations ext2_file_inode_operations;
647extern struct file_operations ext2_file_operations;
648
649/* symlink.c */
650extern struct inode_operations ext2_fast_symlink_inode_operations;
651
652extern struct address_space_operations ext2_aops;
653
654#endif /* __KERNEL__ */
bool ext2_bg_has_super(PEXT2_SUPER_BLOCK pExt2Sb, int group_block)
Definition: Group.c:30
bool ext2_read_inode(PEXT2_FILESYS Ext2Sys, ULONG ino, ULONG offset, PVOID Buffer, ULONG size, PULONG dwReturn)
Definition: Inode.c:494
bool ext2_new_inode(PEXT2_FILESYS fs, ULONG dir, int mode, PEXT2_INODE_BITMAP map, ULONG *ret)
Definition: Inode.c:84
bool ext2_write_inode(PEXT2_FILESYS Ext2Sys, ULONG ino, ULONG offset, PVOID Buffer, ULONG size, PULONG dwReturn)
Definition: Inode.c:541
bool ext2_new_block(PEXT2_FILESYS fs, ULONG goal, PEXT2_BLOCK_BITMAP map, ULONG *ret)
Definition: Memory.c:254
void ext2_update_dynamic_rev(PEXT2_FILESYS fs)
Definition: Mke2fs.c:510
u16 __u16
Definition: btrfs.h:18
u8 __u8
Definition: btrfs.h:17
u32 __u32
Definition: btrfs.h:19
superblock * sb
Definition: btrfs.c:4261
signed __int16 __s16
Definition: types.h:20
signed __int32 __s32
Definition: types.h:23
#define printf
Definition: freeldr.h:97
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: gl.h:1546
GLboolean GLuint group
Definition: glext.h:11120
int statfs(const char *name, struct statfs *info)
#define EXT2_NAME_LEN
Definition: ext2_fs.h:502
#define EXT2_N_BLOCKS
Definition: ext2_fs.h:200
Definition: fs.h:117
Definition: ext2_fs.h:135
__u16 acle_pad1
Definition: ext2_fs.h:140
__u32 acle_next
Definition: ext2_fs.h:141
__u16 acle_type
Definition: ext2_fs.h:138
__u16 acle_perms
Definition: ext2_fs.h:137
__u16 acle_tag
Definition: ext2_fs.h:139
__u32 acle_size
Definition: ext2_fs.h:136
__u32 aclh_acle_count
Definition: ext2_fs.h:130
__u32 aclh_size
Definition: ext2_fs.h:128
__u32 aclh_first_acle
Definition: ext2_fs.h:131
__u32 aclh_file_count
Definition: ext2_fs.h:129
Definition: ext2_fs.h:505
__u8 file_type
Definition: ext2_fs.h:509
__u8 name_len
Definition: ext2_fs.h:508
__u32 inode
Definition: ext2_fs.h:506
__u16 rec_len
Definition: ext2_fs.h:507
Definition: ext2_fs.h:492
__u32 inode
Definition: ext2_fs.h:493
__u16 name_len
Definition: ext2_fs.h:495
__u16 rec_len
Definition: ext2_fs.h:494
Definition: ext2_fs.h:168
__u32 block
Definition: ext2_fs.h:170
__u32 hash
Definition: ext2_fs.h:169
__u8 indirect_levels
Definition: ext2_fs.h:164
__u32 reserved_zero
Definition: ext2_fs.h:161
__u32 bg_block_bitmap
Definition: ext2_fs.h:150
__u32 bg_inode_bitmap
Definition: ext2_fs.h:151
__u32 bg_reserved[3]
Definition: ext2_fs.h:157
__u16 bg_used_dirs_count
Definition: ext2_fs.h:155
__u16 bg_free_blocks_count
Definition: ext2_fs.h:153
__u16 bg_pad
Definition: ext2_fs.h:156
__u32 bg_inode_table
Definition: ext2_fs.h:152
__u16 bg_free_inodes_count
Definition: ext2_fs.h:154
__u16 i_uid
Definition: ext2_fs.h:226
ULONG osd2[3]
Definition: ext2.h:152
__u8 h_i_fsize
Definition: ext2_fs.h:263
__u16 h_i_mode_high
Definition: ext2_fs.h:264
__u32 i_generation
Definition: ext2_fs.h:248
__u8 l_i_fsize
Definition: ext2_fs.h:255
__u16 l_i_uid_high
Definition: ext2_fs.h:257
struct ext2_inode::@692::@695 hurd1
__u16 h_i_gid_high
Definition: ext2_fs.h:266
__u16 i_mode
Definition: ext2_fs.h:225
__u16 i_pad1
Definition: ext2_fs.h:256
__u16 h_i_uid_high
Definition: ext2_fs.h:265
__u32 h_i_translator
Definition: ext2_fs.h:241
__u32 i_dir_acl
Definition: ext2_fs.h:250
__u8 l_i_frag
Definition: ext2_fs.h:254
__u32 i_blocks
Definition: ext2_fs.h:234
__u16 i_gid
Definition: ext2_fs.h:232
__u32 i_faddr
Definition: ext2_fs.h:251
struct ext2_inode::@692::@696 masix1
__u32 l_i_reserved2
Definition: ext2_fs.h:259
struct ext2_inode::@693::@698 hurd2
__u32 i_dtime
Definition: ext2_fs.h:231
struct ext2_inode::@693::@699 masix2
__u32 m_i_reserved1
Definition: ext2_fs.h:244
__u8 m_i_fsize
Definition: ext2_fs.h:271
__u16 m_pad1
Definition: ext2_fs.h:272
__u32 i_size
Definition: ext2_fs.h:227
__u32 i_ctime
Definition: ext2_fs.h:229
__u32 i_atime
Definition: ext2_fs.h:228
__u32 i_file_acl
Definition: ext2_fs.h:249
__u32 i_mtime
Definition: ext2_fs.h:230
__u32 h_i_author
Definition: ext2_fs.h:267
__u32 i_block[EXT2_N_BLOCKS]
Definition: ext2_fs.h:247
struct ext2_inode::@692::@694 linux1
__u16 l_i_gid_high
Definition: ext2_fs.h:258
__u8 h_i_frag
Definition: ext2_fs.h:262
ULONG osd1
Definition: ext2.h:136
__u32 i_flags
Definition: ext2_fs.h:235
__u32 m_i_reserved2[2]
Definition: ext2_fs.h:273
__u8 m_i_frag
Definition: ext2_fs.h:270
__u32 l_i_reserved1
Definition: ext2_fs.h:238
__u16 i_links_count
Definition: ext2_fs.h:233
struct ext2_inode::@693::@697 linux2
__u16 s_mnt_count
Definition: ext2_fs.h:360
__u32 s_blocks_count
Definition: ext2_fs.h:348
__u16 s_padding1
Definition: ext2_fs.h:401
char s_volume_name[16]
Definition: ext2_fs.h:392
__u8 s_prealloc_blocks
Definition: ext2_fs.h:399
__u32 s_first_ino
Definition: ext2_fs.h:385
__u8 s_prealloc_dir_blocks
Definition: ext2_fs.h:400
__u32 s_log_block_size
Definition: ext2_fs.h:353
__u32 s_rev_level
Definition: ext2_fs.h:369
__u32 s_journal_inum
Definition: ext2_fs.h:423
__u32 s_journal_dev
Definition: ext2_fs.h:424
__u8 s_journal_uuid[16]
Definition: ext2_fs.h:422
__u16 s_def_resgid
Definition: ext2_fs.h:371
__u16 s_inode_size
Definition: ext2_fs.h:386
__u32 s_algorithm_usage_bitmap
Definition: ext2_fs.h:394
__u16 s_errors
Definition: ext2_fs.h:364
__u32 s_free_inodes_count
Definition: ext2_fs.h:351
__u16 s_minor_rev_level
Definition: ext2_fs.h:365
__u32 s_last_orphan
Definition: ext2_fs.h:425
__u32 s_inodes_count
Definition: ext2_fs.h:347
__u32 s_first_data_block
Definition: ext2_fs.h:352
__u32 s_reserved[204]
Definition: ext2_fs.h:402
__u32 s_feature_ro_compat
Definition: ext2_fs.h:390
__u32 s_checkinterval
Definition: ext2_fs.h:367
__u16 s_block_group_nr
Definition: ext2_fs.h:387
__u32 s_feature_compat
Definition: ext2_fs.h:388
__u32 s_r_blocks_count
Definition: ext2_fs.h:349
__s32 s_log_frag_size
Definition: ext2_fs.h:354
__u32 s_lastcheck
Definition: ext2_fs.h:366
__u32 s_inodes_per_group
Definition: ext2_fs.h:357
__u32 s_creator_os
Definition: ext2_fs.h:368
__u32 s_feature_incompat
Definition: ext2_fs.h:389
char s_last_mounted[64]
Definition: ext2_fs.h:393
__u32 s_free_blocks_count
Definition: ext2_fs.h:350
__u32 s_blocks_per_group
Definition: ext2_fs.h:355
__u32 s_frags_per_group
Definition: ext2_fs.h:356
__s16 s_max_mnt_count
Definition: ext2_fs.h:361
__u8 s_uuid[16]
Definition: ext2_fs.h:391
__u16 s_def_resuid
Definition: ext2_fs.h:370
Definition: fci.c:127
Definition: fs.h:78
Definition: name.c:39
Definition: fs.h:64
#define const
Definition: zconf.h:233