1 /*
2 * linux/include/linux/ufs_fs.h
3 *
4 * Copyright (C) 1996
5 * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu)
6 * Laboratory for Computer Science Research Computing Facility
7 * Rutgers, The State University of New Jersey
8 *
9 * Clean swab support by Fare <fare@tunes.org>
10 * just hope no one is using NNUUXXI on __?64 structure elements
11 * 64-bit clean thanks to Maciej W. Rozycki <macro@ds2.pg.gda.pl>
12 *
13 * 4.4BSD (FreeBSD) support added on February 1st 1998 by
14 * Niels Kristian Bech Jensen <nkbj@image.dk> partially based
15 * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>.
16 *
17 * NeXTstep support added on February 5th 1998 by
18 * Niels Kristian Bech Jensen <nkbj@image.dk>.
19 *
20 * Write support by Daniel Pirkl <daniel.pirkl@email.cz>
21 *
22 * HP/UX hfs filesystem support added by
23 * Martin K. Petersen <mkp@mkp.net>, August 1999
24 *
25 */
26
27 #ifndef __LINUX_UFS_FS_H
28 #define __LINUX_UFS_FS_H
29
30 #include <linux/types.h>
31 #include <linux/kernel.h>
32 #include <linux/time.h>
33 #include <linux/stat.h>
34
35 #define UFS_BBLOCK 0
36 #define UFS_BBSIZE 8192
37 #define UFS_SBLOCK 8192
38 #define UFS_SBSIZE 8192
39
40 #define UFS_SECTOR_SIZE 512
41 #define UFS_SECTOR_BITS 9
42 #define UFS_MAGIC 0x00011954
43 #define UFS_CIGAM 0x54190100 /* byteswapped MAGIC */
44
45
46 /* HP specific MAGIC values */
47
48 #define UFS_MAGIC_LFN 0x00095014 /* fs supports filenames > 14 chars */
49 #define UFS_CIGAM_LFN 0x14500900 /* srahc 41 < semanelif stroppus sf */
50
51 #define UFS_MAGIC_SEC 0x00612195 /* B1 security fs */
52 #define UFS_CIGAM_SEC 0x95216100
53
54 #define UFS_MAGIC_FEA 0x00195612 /* fs_featurebits supported */
55 #define UFS_CIGAM_FEA 0x12561900
56
57 #define UFS_MAGIC_4GB 0x05231994 /* fs > 4 GB && fs_featurebits */
58 #define UFS_CIGAM_4GB 0x94192305
59
60 /* Seems somebody at HP goofed here. B1 and lfs are both 0x2 !?! */
61 #define UFS_FSF_LFN 0x00000001 /* long file names */
62 #define UFS_FSF_B1 0x00000002 /* B1 security */
63 #define UFS_FSF_LFS 0x00000002 /* large files */
64 #define UFS_FSF_LUID 0x00000004 /* large UIDs */
65
66 /* End of HP stuff */
67
68
69 #define UFS_BSIZE 8192
70 #define UFS_MINBSIZE 4096
71 #define UFS_FSIZE 1024
72 #define UFS_MAXFRAG (UFS_BSIZE / UFS_FSIZE)
73
74 #define UFS_NDADDR 12
75 #define UFS_NINDIR 3
76
77 #define UFS_IND_BLOCK (UFS_NDADDR + 0)
78 #define UFS_DIND_BLOCK (UFS_NDADDR + 1)
79 #define UFS_TIND_BLOCK (UFS_NDADDR + 2)
80
81 #define UFS_NDIR_FRAGMENT (UFS_NDADDR << uspi->s_fpbshift)
82 #define UFS_IND_FRAGMENT (UFS_IND_BLOCK << uspi->s_fpbshift)
83 #define UFS_DIND_FRAGMENT (UFS_DIND_BLOCK << uspi->s_fpbshift)
84 #define UFS_TIND_FRAGMENT (UFS_TIND_BLOCK << uspi->s_fpbshift)
85
86 #define UFS_ROOTINO 2
87 #define UFS_FIRST_INO (UFS_ROOTINO + 1)
88
89 #define UFS_USEEFT ((__u16)65535)
90
91 #define UFS_FSOK 0x7c269d38
92 #define UFS_FSACTIVE ((char)0x00)
93 #define UFS_FSCLEAN ((char)0x01)
94 #define UFS_FSSTABLE ((char)0x02)
95 #define UFS_FSOSF1 ((char)0x03) /* is this correct for DEC OSF/1? */
96 #define UFS_FSBAD ((char)0xff)
97
98 /* From here to next blank line, s_flags for ufs_sb_info */
99 /* endianness */
100 #define UFS_BYTESEX 0x00000001 /* mask; leave room to 0xF */
101 #if defined(__LITTLE_ENDIAN) || defined(__BIG_ENDIAN)
102 /* these are for sane architectures */
103 #define UFS_NATIVE_ENDIAN 0x00000000
104 #define UFS_SWABBED_ENDIAN 0x00000001
105 #else
106 /* these are for pervert architectures */
107 #define UFS_LITTLE_ENDIAN 0x00000000
108 #define UFS_BIG_ENDIAN 0x00000001
109 #endif
110 /* directory entry encoding */
111 #define UFS_DE_MASK 0x00000010 /* mask for the following */
112 #define UFS_DE_OLD 0x00000000
113 #define UFS_DE_44BSD 0x00000010
114 /* uid encoding */
115 #define UFS_UID_MASK 0x00000060 /* mask for the following */
116 #define UFS_UID_OLD 0x00000000
117 #define UFS_UID_44BSD 0x00000020
118 #define UFS_UID_EFT 0x00000040
119 /* superblock state encoding */
120 #define UFS_ST_MASK 0x00000700 /* mask for the following */
121 #define UFS_ST_OLD 0x00000000
122 #define UFS_ST_44BSD 0x00000100
123 #define UFS_ST_SUN 0x00000200
124 #define UFS_ST_SUNx86 0x00000400
125 /*cylinder group encoding */
126 #define UFS_CG_MASK 0x00003000 /* mask for the following */
127 #define UFS_CG_OLD 0x00000000
128 #define UFS_CG_44BSD 0x00002000
129 #define UFS_CG_SUN 0x00001000
130
131 /* fs_inodefmt options */
132 #define UFS_42INODEFMT -1
133 #define UFS_44INODEFMT 2
134
135 /* mount options */
136 #define UFS_MOUNT_ONERROR 0x0000000F
137 #define UFS_MOUNT_ONERROR_PANIC 0x00000001
138 #define UFS_MOUNT_ONERROR_LOCK 0x00000002
139 #define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
140 #define UFS_MOUNT_ONERROR_REPAIR 0x00000008
141
142 #define UFS_MOUNT_UFSTYPE 0x00000FF0
143 #define UFS_MOUNT_UFSTYPE_OLD 0x00000010
144 #define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
145 #define UFS_MOUNT_UFSTYPE_SUN 0x00000040
146 #define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080
147 #define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100
148 #define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200
149 #define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400
150 #define UFS_MOUNT_UFSTYPE_HP 0x00000800
151
152 #define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
153 #define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt
154 #define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
155
156 /*
157 * MINFREE gives the minimum acceptable percentage of file system
158 * blocks which may be free. If the freelist drops below this level
159 * only the superuser may continue to allocate blocks. This may
160 * be set to 0 if no reserve of free blocks is deemed necessary,
161 * however throughput drops by fifty percent if the file system
162 * is run at between 95% and 100% full; thus the minimum default
163 * value of fs_minfree is 5%. However, to get good clustering
164 * performance, 10% is a better choice. hence we use 10% as our
165 * default value. With 10% free space, fragmentation is not a
166 * problem, so we choose to optimize for time.
167 */
168 #define UFS_MINFREE 5
169 #define UFS_DEFAULTOPT UFS_OPTTIME
170
171 /*
172 * Turn file system block numbers into disk block addresses.
173 * This maps file system blocks to device size blocks.
174 */
175 #define ufs_fsbtodb(uspi, b) ((b) << (uspi)->s_fsbtodb)
176 #define ufs_dbtofsb(uspi, b) ((b) >> (uspi)->s_fsbtodb)
177
178 /*
179 * Cylinder group macros to locate things in cylinder groups.
180 * They calc file system addresses of cylinder group data structures.
181 */
182 #define ufs_cgbase(c) (uspi->s_fpg * (c))
183 #define ufs_cgstart(c) (ufs_cgbase(c) + uspi->s_cgoffset * ((c) & ~uspi->s_cgmask))
184 #define ufs_cgsblock(c) (ufs_cgstart(c) + uspi->s_sblkno) /* super blk */
185 #define ufs_cgcmin(c) (ufs_cgstart(c) + uspi->s_cblkno) /* cg block */
186 #define ufs_cgimin(c) (ufs_cgstart(c) + uspi->s_iblkno) /* inode blk */
187 #define ufs_cgdmin(c) (ufs_cgstart(c) + uspi->s_dblkno) /* 1st data */
188
189 /*
190 * Macros for handling inode numbers:
191 * inode number to file system block offset.
192 * inode number to cylinder group number.
193 * inode number to file system block address.
194 */
195 #define ufs_inotocg(x) ((x) / uspi->s_ipg)
196 #define ufs_inotocgoff(x) ((x) % uspi->s_ipg)
197 #define ufs_inotofsba(x) (ufs_cgimin(ufs_inotocg(x)) + ufs_inotocgoff(x) / uspi->s_inopf)
198 #define ufs_inotofsbo(x) ((x) % uspi->s_inopf)
199
200 /*
201 * Give cylinder group number for a file system block.
202 * Give cylinder group block number for a file system block.
203 */
204 #define ufs_dtog(d) ((d) / uspi->s_fpg)
205 #define ufs_dtogd(d) ((d) % uspi->s_fpg)
206
207 /*
208 * Compute the cylinder and rotational position of a cyl block addr.
209 */
210 #define ufs_cbtocylno(bno) \
211 ((bno) * uspi->s_nspf / uspi->s_spc)
212 #define ufs_cbtorpos(bno) \
213 ((((bno) * uspi->s_nspf % uspi->s_spc / uspi->s_nsect \
214 * uspi->s_trackskew + (bno) * uspi->s_nspf % uspi->s_spc \
215 % uspi->s_nsect * uspi->s_interleave) % uspi->s_nsect \
216 * uspi->s_nrpos) / uspi->s_npsect)
217
218 /*
219 * The following macros optimize certain frequently calculated
220 * quantities by using shifts and masks in place of divisions
221 * modulos and multiplications.
222 */
223 #define ufs_blkoff(loc) ((loc) & uspi->s_qbmask)
224 #define ufs_fragoff(loc) ((loc) & uspi->s_qfmask)
225 #define ufs_lblktosize(blk) ((blk) << uspi->s_bshift)
226 #define ufs_lblkno(loc) ((loc) >> uspi->s_bshift)
227 #define ufs_numfrags(loc) ((loc) >> uspi->s_fshift)
228 #define ufs_blkroundup(size) (((size) + uspi->s_qbmask) & uspi->s_bmask)
229 #define ufs_fragroundup(size) (((size) + uspi->s_qfmask) & uspi->s_fmask)
230 #define ufs_fragstoblks(frags) ((frags) >> uspi->s_fpbshift)
231 #define ufs_blkstofrags(blks) ((blks) << uspi->s_fpbshift)
232 #define ufs_fragnum(fsb) ((fsb) & uspi->s_fpbmask)
233 #define ufs_blknum(fsb) ((fsb) & ~uspi->s_fpbmask)
234
235 #define UFS_MAXNAMLEN 255
236 #define UFS_MAXMNTLEN 512
237 #define UFS_MAXCSBUFS 31
238 #define UFS_LINK_MAX 32000
239
240 /*
241 * UFS_DIR_PAD defines the directory entries boundaries
242 * (must be a multiple of 4)
243 */
244 #define UFS_DIR_PAD 4
245 #define UFS_DIR_ROUND (UFS_DIR_PAD - 1)
246 #define UFS_DIR_REC_LEN(name_len) (((name_len) + 1 + 8 + UFS_DIR_ROUND) & ~UFS_DIR_ROUND)
247
248 struct ufs_timeval {
249 __s32 tv_sec;
250 __s32 tv_usec;
251 };
252
253 struct ufs_dir_entry {
254 __u32 d_ino; /* inode number of this entry */
255 __u16 d_reclen; /* length of this entry */
256 union {
257 __u16 d_namlen; /* actual length of d_name */
258 struct {
259 __u8 d_type; /* file type */
260 __u8 d_namlen; /* length of string in d_name */
261 } d_44;
262 } d_u;
263 __u8 d_name[UFS_MAXNAMLEN + 1]; /* file name */
264 };
265
266 struct ufs_csum {
267 __u32 cs_ndir; /* number of directories */
268 __u32 cs_nbfree; /* number of free blocks */
269 __u32 cs_nifree; /* number of free inodes */
270 __u32 cs_nffree; /* number of free frags */
271 };
272
273 /*
274 * This is the actual superblock, as it is laid out on the disk.
275 */
276 struct ufs_super_block {
277 __u32 fs_link; /* UNUSED */
278 __u32 fs_rlink; /* UNUSED */
279 __u32 fs_sblkno; /* addr of super-block in filesys */
280 __u32 fs_cblkno; /* offset of cyl-block in filesys */
281 __u32 fs_iblkno; /* offset of inode-blocks in filesys */
282 __u32 fs_dblkno; /* offset of first data after cg */
283 __u32 fs_cgoffset; /* cylinder group offset in cylinder */
284 __u32 fs_cgmask; /* used to calc mod fs_ntrak */
285 __u32 fs_time; /* last time written -- time_t */
286 __u32 fs_size; /* number of blocks in fs */
287 __u32 fs_dsize; /* number of data blocks in fs */
288 __u32 fs_ncg; /* number of cylinder groups */
289 __u32 fs_bsize; /* size of basic blocks in fs */
290 __u32 fs_fsize; /* size of frag blocks in fs */
291 __u32 fs_frag; /* number of frags in a block in fs */
292 /* these are configuration parameters */
293 __u32 fs_minfree; /* minimum percentage of free blocks */
294 __u32 fs_rotdelay; /* num of ms for optimal next block */
295 __u32 fs_rps; /* disk revolutions per second */
296 /* these fields can be computed from the others */
297 __u32 fs_bmask; /* ``blkoff'' calc of blk offsets */
298 __u32 fs_fmask; /* ``fragoff'' calc of frag offsets */
299 __u32 fs_bshift; /* ``lblkno'' calc of logical blkno */
300 __u32 fs_fshift; /* ``numfrags'' calc number of frags */
301 /* these are configuration parameters */
302 __u32 fs_maxcontig; /* max number of contiguous blks */
303 __u32 fs_maxbpg; /* max number of blks per cyl group */
304 /* these fields can be computed from the others */
305 __u32 fs_fragshift; /* block to frag shift */
306 __u32 fs_fsbtodb; /* fsbtodb and dbtofsb shift constant */
307 __u32 fs_sbsize; /* actual size of super block */
308 __u32 fs_csmask; /* csum block offset */
309 __u32 fs_csshift; /* csum block number */
310 __u32 fs_nindir; /* value of NINDIR */
311 __u32 fs_inopb; /* value of INOPB */
312 __u32 fs_nspf; /* value of NSPF */
313 /* yet another configuration parameter */
314 __u32 fs_optim; /* optimization preference, see below */
315 /* these fields are derived from the hardware */
316 union {
317 struct {
318 __u32 fs_npsect; /* # sectors/track including spares */
319 } fs_sun;
320 struct {
321 __s32 fs_state; /* file system state time stamp */
322 } fs_sunx86;
323 } fs_u1;
324 __u32 fs_interleave; /* hardware sector interleave */
325 __u32 fs_trackskew; /* sector 0 skew, per track */
326 /* a unique id for this filesystem (currently unused and unmaintained) */
327 /* In 4.3 Tahoe this space is used by fs_headswitch and fs_trkseek */
328 /* Neither of those fields is used in the Tahoe code right now but */
329 /* there could be problems if they are. */
330 __u32 fs_id[2]; /* file system id */
331 /* sizes determined by number of cylinder groups and their sizes */
332 __u32 fs_csaddr; /* blk addr of cyl grp summary area */
333 __u32 fs_cssize; /* size of cyl grp summary area */
334 __u32 fs_cgsize; /* cylinder group size */
335 /* these fields are derived from the hardware */
336 __u32 fs_ntrak; /* tracks per cylinder */
337 __u32 fs_nsect; /* sectors per track */
338 __u32 fs_spc; /* sectors per cylinder */
339 /* this comes from the disk driver partitioning */
340 __u32 fs_ncyl; /* cylinders in file system */
341 /* these fields can be computed from the others */
342 __u32 fs_cpg; /* cylinders per group */
343 __u32 fs_ipg; /* inodes per group */
344 __u32 fs_fpg; /* blocks per group * fs_frag */
345 /* this data must be re-computed after crashes */
346 struct ufs_csum fs_cstotal; /* cylinder summary information */
347 /* these fields are cleared at mount time */
348 __s8 fs_fmod; /* super block modified flag */
349 __s8 fs_clean; /* file system is clean flag */
350 __s8 fs_ronly; /* mounted read-only flag */
351 __s8 fs_flags; /* currently unused flag */
352 __s8 fs_fsmnt[UFS_MAXMNTLEN]; /* name mounted on */
353 /* these fields retain the current block allocation info */
354 __u32 fs_cgrotor; /* last cg searched */
355 __u32 fs_csp[UFS_MAXCSBUFS]; /* list of fs_cs info buffers */
356 __u32 fs_maxcluster;
357 __u32 fs_cpc; /* cyl per cycle in postbl */
358 __u16 fs_opostbl[16][8]; /* old rotation block list head */
359 union {
360 struct {
361 __s32 fs_sparecon[53];/* reserved for future constants */
362 __s32 fs_reclaim;
363 __s32 fs_sparecon2[1];
364 __s32 fs_state; /* file system state time stamp */
365 __u32 fs_qbmask[2]; /* ~usb_bmask */
366 __u32 fs_qfmask[2]; /* ~usb_fmask */
367 } fs_sun;
368 struct {
369 __s32 fs_sparecon[53];/* reserved for future constants */
370 __s32 fs_reclaim;
371 __s32 fs_sparecon2[1];
372 __u32 fs_npsect; /* # sectors/track including spares */
373 __u32 fs_qbmask[2]; /* ~usb_bmask */
374 __u32 fs_qfmask[2]; /* ~usb_fmask */
375 } fs_sunx86;
376 struct {
377 __s32 fs_sparecon[50];/* reserved for future constants */
378 __s32 fs_contigsumsize;/* size of cluster summary array */
379 __s32 fs_maxsymlinklen;/* max length of an internal symlink */
380 __s32 fs_inodefmt; /* format of on-disk inodes */
381 __u32 fs_maxfilesize[2]; /* max representable file size */
382 __u32 fs_qbmask[2]; /* ~usb_bmask */
383 __u32 fs_qfmask[2]; /* ~usb_fmask */
384 __s32 fs_state; /* file system state time stamp */
385 } fs_44;
386 } fs_u2;
387 __s32 fs_postblformat; /* format of positional layout tables */
388 __s32 fs_nrpos; /* number of rotational positions */
389 __s32 fs_postbloff; /* (__s16) rotation block list head */
390 __s32 fs_rotbloff; /* (__u8) blocks for each rotation */
391 __s32 fs_magic; /* magic number */
392 __u8 fs_space[1]; /* list of blocks for each rotation */
393 };
394
395 /*
396 * Preference for optimization.
397 */
398 #define UFS_OPTTIME 0 /* minimize allocation time */
399 #define UFS_OPTSPACE 1 /* minimize disk fragmentation */
400
401 /*
402 * Rotational layout table format types
403 */
404 #define UFS_42POSTBLFMT -1 /* 4.2BSD rotational table format */
405 #define UFS_DYNAMICPOSTBLFMT 1 /* dynamic rotational table format */
406
407 /*
408 * Convert cylinder group to base address of its global summary info.
409 */
410 #define fs_cs(indx) \
411 u.ufs_sb.s_csp[(indx) >> uspi->s_csshift][(indx) & ~uspi->s_csmask]
412
413 /*
414 * Cylinder group block for a file system.
415 *
416 * Writable fields in the cylinder group are protected by the associated
417 * super block lock fs->fs_lock.
418 */
419 #define CG_MAGIC 0x090255
420 #define ufs_cg_chkmagic(ucg) (SWAB32((ucg)->cg_magic) == CG_MAGIC)
421
422 /*
423 * size of this structure is 172 B
424 */
425 struct ufs_cylinder_group {
426 __u32 cg_link; /* linked list of cyl groups */
427 __u32 cg_magic; /* magic number */
428 __u32 cg_time; /* time last written */
429 __u32 cg_cgx; /* we are the cgx'th cylinder group */
430 __u16 cg_ncyl; /* number of cyl's this cg */
431 __u16 cg_niblk; /* number of inode blocks this cg */
432 __u32 cg_ndblk; /* number of data blocks this cg */
433 struct ufs_csum cg_cs; /* cylinder summary information */
434 __u32 cg_rotor; /* position of last used block */
435 __u32 cg_frotor; /* position of last used frag */
436 __u32 cg_irotor; /* position of last used inode */
437 __u32 cg_frsum[UFS_MAXFRAG]; /* counts of available frags */
438 __u32 cg_btotoff; /* (__u32) block totals per cylinder */
439 __u32 cg_boff; /* (short) free block positions */
440 __u32 cg_iusedoff; /* (char) used inode map */
441 __u32 cg_freeoff; /* (u_char) free block map */
442 __u32 cg_nextfreeoff; /* (u_char) next available space */
443 union {
444 struct {
445 __u32 cg_clustersumoff; /* (u_int32) counts of avail clusters */
446 __u32 cg_clusteroff; /* (u_int8) free cluster map */
447 __u32 cg_nclusterblks; /* number of clusters this cg */
448 __u32 cg_sparecon[13]; /* reserved for future use */
449 } cg_44;
450 __u32 cg_sparecon[16]; /* reserved for future use */
451 } cg_u;
452 __u8 cg_space[1]; /* space for cylinder group maps */
453 /* actually longer */
454 };
455
456 /*
457 * structure of an on-disk inode
458 */
459 struct ufs_inode {
460 __u16 ui_mode; /* 0x0 */
461 __u16 ui_nlink; /* 0x2 */
462 union {
463 struct {
464 __u16 ui_suid; /* 0x4 */
465 __u16 ui_sgid; /* 0x6 */
466 } oldids;
467 __u32 ui_inumber; /* 0x4 lsf: inode number */
468 __u32 ui_author; /* 0x4 GNU HURD: author */
469 } ui_u1;
470 __u64 ui_size; /* 0x8 */
471 struct ufs_timeval ui_atime; /* 0x10 access */
472 struct ufs_timeval ui_mtime; /* 0x18 modification */
473 struct ufs_timeval ui_ctime; /* 0x20 creation */
474 union {
475 struct {
476 __u32 ui_db[UFS_NDADDR];/* 0x28 data blocks */
477 __u32 ui_ib[UFS_NINDIR];/* 0x58 indirect blocks */
478 } ui_addr;
479 __u8 ui_symlink[4*(UFS_NDADDR+UFS_NINDIR)];/* 0x28 fast symlink */
480 } ui_u2;
481 __u32 ui_flags; /* 0x64 immutable, append-only... */
482 __u32 ui_blocks; /* 0x68 blocks in use */
483 __u32 ui_gen; /* 0x6c like ext2 i_version, for NFS support */
484 union {
485 struct {
486 __u32 ui_shadow; /* 0x70 shadow inode with security data */
487 __u32 ui_uid; /* 0x74 long EFT version of uid */
488 __u32 ui_gid; /* 0x78 long EFT version of gid */
489 __u32 ui_oeftflag; /* 0x7c reserved */
490 } ui_sun;
491 struct {
492 __u32 ui_uid; /* 0x70 File owner */
493 __u32 ui_gid; /* 0x74 File group */
494 __s32 ui_spare[2]; /* 0x78 reserved */
495 } ui_44;
496 struct {
497 __u32 ui_uid; /* 0x70 */
498 __u32 ui_gid; /* 0x74 */
499 __u16 ui_modeh; /* 0x78 mode high bits */
500 __u16 ui_spare; /* 0x7A unused */
501 __u32 ui_trans; /* 0x7c filesystem translator */
502 } ui_hurd;
503 } ui_u3;
504 };
505
506 /* FreeBSD has these in sys/stat.h */
507 /* ui_flags that can be set by a file owner */
508 #define UFS_UF_SETTABLE 0x0000ffff
509 #define UFS_UF_NODUMP 0x00000001 /* do not dump */
510 #define UFS_UF_IMMUTABLE 0x00000002 /* immutable (can't "change") */
511 #define UFS_UF_APPEND 0x00000004 /* append-only */
512 #define UFS_UF_OPAQUE 0x00000008 /* directory is opaque (unionfs) */
513 #define UFS_UF_NOUNLINK 0x00000010 /* can't be removed or renamed */
514 /* ui_flags that only root can set */
515 #define UFS_SF_SETTABLE 0xffff0000
516 #define UFS_SF_ARCHIVED 0x00010000 /* archived */
517 #define UFS_SF_IMMUTABLE 0x00020000 /* immutable (can't "change") */
518 #define UFS_SF_APPEND 0x00040000 /* append-only */
519 #define UFS_SF_NOUNLINK 0x00100000 /* can't be removed or renamed */
520
521 #ifdef __KERNEL__
522
523 /* balloc.c */
524 extern void ufs_free_fragments (struct inode *, unsigned, unsigned);
525 extern void ufs_free_blocks (struct inode *, unsigned, unsigned);
526 extern unsigned ufs_new_fragments (struct inode *, u32 *, unsigned, unsigned, unsigned, int *);
527
528 /* cylinder.c */
529 extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
530 extern void ufs_put_cylinder (struct super_block *, unsigned);
531
532 /* dir.c */
533 extern struct inode_operations ufs_dir_inode_operations;
534 extern int ufs_check_dir_entry (const char *, struct inode *, struct ufs_dir_entry *, struct buffer_head *, unsigned long);
535
536 /* file.c */
537 extern struct inode_operations ufs_file_inode_operations;
538 extern struct file_operations ufs_file_operations;
539
540 extern struct address_space_operations ufs_aops;
541
542 /* ialloc.c */
543 extern void ufs_free_inode (struct inode *inode);
544 extern struct inode * ufs_new_inode (const struct inode *, int, int *);
545
546 /* inode.c */
547 extern int ufs_frag_map (struct inode *, int);
548 extern void ufs_read_inode (struct inode *);
549 extern void ufs_put_inode (struct inode *);
550 extern void ufs_write_inode (struct inode *, int);
551 extern int ufs_sync_inode (struct inode *);
552 extern void ufs_delete_inode (struct inode *);
553 extern struct buffer_head * ufs_getfrag (struct inode *, unsigned, int, int *);
554 extern struct buffer_head * ufs_bread (struct inode *, unsigned, int, int *);
555
556 /* namei.c */
557 extern struct file_operations ufs_dir_operations;
558
559 /* super.c */
560 extern struct file_system_type ufs_fs_type;
561 extern void ufs_warning (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
562 extern void ufs_error (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
563 extern void ufs_panic (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
564 extern void ufs_write_super (struct super_block *);
565
566 /* symlink.c */
567 extern struct inode_operations ufs_fast_symlink_inode_operations;
568
569 /* truncate.c */
570 extern void ufs_truncate (struct inode *);
571
572 #endif /* __KERNEL__ */
573
574 #endif /* __LINUX_UFS_FS_H */
575
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