1 /* $NetBSD: udf.h,v 1.50 2015/08/24 08:31:56 hannken Exp $ */
4 * Copyright (c) 2006, 2008 Reinoud Zandijk
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #ifndef _FS_UDF_UDF_H_
30 #define _FS_UDF_UDF_H_
32 #include <sys/queue.h>
33 #include <sys/rbtree.h>
35 #include <sys/mutex.h>
38 #include "ecma167-udf.h"
42 #include <sys/kthread.h>
43 #include <miscfs/genfs/genfs_node.h>
46 extern int udf_verbose
;
48 /* undefine UDF_COMPLETE_DELETE to need `purge'; but purge is not implemented */
49 #define UDF_COMPLETE_DELETE
51 /* debug categories */
52 #define UDF_DEBUG_VOLUMES 0x0000001
53 #define UDF_DEBUG_LOCKING 0x0000002
54 #define UDF_DEBUG_NODE 0x0000004
55 #define UDF_DEBUG_LOOKUP 0x0000008
56 #define UDF_DEBUG_READDIR 0x0000010
57 #define UDF_DEBUG_FIDS 0x0000020
58 #define UDF_DEBUG_DESCRIPTOR 0x0000040
59 #define UDF_DEBUG_TRANSLATE 0x0000080
60 #define UDF_DEBUG_STRATEGY 0x0000100
61 #define UDF_DEBUG_READ 0x0000200
62 #define UDF_DEBUG_WRITE 0x0000400
63 #define UDF_DEBUG_CALL 0x0000800
64 #define UDF_DEBUG_ATTR 0x0001000
65 #define UDF_DEBUG_EXTATTR 0x0002000
66 #define UDF_DEBUG_ALLOC 0x0004000
67 #define UDF_DEBUG_ADWLK 0x0008000
68 #define UDF_DEBUG_DIRHASH 0x0010000
69 #define UDF_DEBUG_NOTIMPL 0x0020000
70 #define UDF_DEBUG_SHEDULE 0x0040000
71 #define UDF_DEBUG_ECCLINE 0x0080000
72 #define UDF_DEBUG_SYNC 0x0100000
73 #define UDF_DEBUG_PARANOIA 0x0200000
74 #define UDF_DEBUG_PARANOIDADWLK 0x0400000
75 #define UDF_DEBUG_NODEDUMP 0x0800000
76 #define UDF_DEBUG_RESERVE 0x1000000
78 /* initial value of udf_verbose */
79 #define UDF_DEBUGGING 0
82 #define DPRINTF(name, arg) { \
83 if (udf_verbose & UDF_DEBUG_##name) {\
87 #define DPRINTFIF(name, cond, arg) { \
88 if (udf_verbose & UDF_DEBUG_##name) { \
89 if (cond) printf arg;\
93 #define DPRINTF(name, arg) {}
94 #define DPRINTFIF(name, cond, arg) {}
99 /* constants to identify what kind of identifier we are dealing with */
100 #define UDF_REGID_DOMAIN 1
101 #define UDF_REGID_UDF 2
102 #define UDF_REGID_IMPLEMENTATION 3
103 #define UDF_REGID_APPLICATION 4
104 #define UDF_REGID_NAME 99
107 /* DON'T change these: they identify 13thmonkey's UDF implementation */
108 #define APP_NAME "*NetBSD UDF"
109 #define APP_VERSION_MAIN 0
110 #define APP_VERSION_SUB 5
111 #define IMPL_NAME "*NetBSD kernel UDF"
114 /* Configuration values */
115 #define UDF_INODE_HASHBITS 10
116 #define UDF_INODE_HASHSIZE (1<<UDF_INODE_HASHBITS)
117 #define UDF_INODE_HASHMASK (UDF_INODE_HASHSIZE - 1)
118 #define UDF_ECCBUF_HASHBITS 10
119 #define UDF_ECCBUF_HASHSIZE (1<<UDF_ECCBUF_HASHBITS)
120 #define UDF_ECCBUF_HASHMASK (UDF_ECCBUF_HASHSIZE -1)
122 #define UDF_ECCLINE_MAXFREE 5 /* picked, needs calculation */
123 #define UDF_ECCLINE_MAXBUSY 100 /* picked, needs calculation */
125 #define UDF_MAX_MAPPINGS (MAXPHYS/DEV_BSIZE) /* 128 */
126 #define UDF_VAT_CHUNKSIZE (64*1024) /* picked */
127 #define UDF_SYMLINKBUFLEN (64*1024) /* picked */
129 #define UDF_DISC_SLACK (128) /* picked, at least 64 kb or 128 */
130 #define UDF_ISO_VRS_SIZE (32*2048) /* 32 ISO `sectors' */
132 #define UDF_MAX_INDIRS_FOLLOW 1024 /* picked */
135 /* structure space */
136 #define UDF_ANCHORS 4 /* 256, 512, N-256, N */
137 #define UDF_PARTITIONS 4 /* overkill */
138 #define UDF_PMAPS 5 /* overkill */
139 #define UDF_LVDINT_SEGMENTS 100 /* big overkill */
140 #define UDF_LVINT_LOSSAGE 4 /* lose 2 openings */
141 #define UDF_MAX_ALLOC_EXTENTS 50 /* overkill */
145 #define UDF_MAXNAMLEN 255 /* as per SPEC */
146 #define UDF_TRANS_ZERO ((uint64_t) -1)
147 #define UDF_TRANS_UNMAPPED ((uint64_t) -2)
148 #define UDF_TRANS_INTERN ((uint64_t) -3)
149 #define UDF_MAX_SECTOR ((uint64_t) -10) /* high water mark */
152 /* RW content hint for allocation and other purposes */
153 #define UDF_C_ABSOLUTE 0 /* blob to write at absolute */
154 #define UDF_C_PROCESSED 0 /* not relevant */
155 #define UDF_C_USERDATA 1 /* all but userdata is metadata */
156 #define UDF_C_DSCR 2 /* update sectornr and CRC */
157 #define UDF_C_FLOAT_DSCR 3 /* update sectornr and CRC; sequential */
158 #define UDF_C_NODE 4 /* file/dir node, update sectornr and CRC */
159 #define UDF_C_FIDS 5 /* update all contained fids */
160 #define UDF_C_METADATA_SBM 6 /* space bitmap, update sectornr and CRC */
161 #define UDF_C_EXTATTRS 7 /* dunno what to do yet */
163 /* use unused b_freelistindex for our UDF_C_TYPE */
164 #define b_udf_c_type b_freelistindex
167 /* virtual to physical mapping types */
168 #define UDF_VTOP_RAWPART UDF_PMAPS /* [0..UDF_PMAPS> are normal */
170 #define UDF_VTOP_TYPE_RAW 0
171 #define UDF_VTOP_TYPE_UNKNOWN 0
172 #define UDF_VTOP_TYPE_PHYS 1
173 #define UDF_VTOP_TYPE_VIRT 2
174 #define UDF_VTOP_TYPE_SPARABLE 3
175 #define UDF_VTOP_TYPE_META 4
178 /* allocation strategies */
179 #define UDF_ALLOC_INVALID 0
180 #define UDF_ALLOC_SEQUENTIAL 1 /* linear on NWA */
181 #define UDF_ALLOC_VAT 2 /* VAT handling */
182 #define UDF_ALLOC_SPACEMAP 3 /* spacemaps */
183 #define UDF_ALLOC_METABITMAP 4 /* metadata bitmap */
184 #define UDF_ALLOC_METASEQUENTIAL 5 /* in chunks seq., nodes not seq */
185 #define UDF_ALLOC_RELAXEDSEQUENTIAL 6 /* only nodes not seq. */
188 /* logical volume open/close actions */
189 #define UDF_OPEN_SESSION 0x01 /* if needed writeout VRS + VDS */
190 #define UDF_CLOSE_SESSION 0x02 /* close session after writing VAT */
191 #define UDF_FINALISE_DISC 0x04 /* close session after writing VAT */
192 #define UDF_WRITE_VAT 0x08 /* sequential VAT filesystem */
193 #define UDF_WRITE_LVINT 0x10 /* write out open lvint */
194 #define UDF_WRITE_PART_BITMAPS 0x20 /* write out partition space bitmaps */
195 #define UDF_APPENDONLY_LVINT 0x40 /* no shifting, only appending */
196 #define UDF_WRITE_METAPART_NODES 0x80 /* write out metadata partition nodes*/
197 #define UDFLOGVOL_BITS "\20\1OPEN_SESSION\2CLOSE_SESSION\3FINALISE_DISC" \
198 "\4WRITE_VAT\5WRITE_LVINT\6WRITE_PART_BITMAPS" \
199 "\7APPENDONLY_LVINT\10WRITE_METAPART_NODES"
201 /* logical volume error handling actions */
202 #define UDF_UPDATE_TRACKINFO 0x01 /* update trackinfo and re-shedule */
203 #define UDF_REMAP_BLOCK 0x02 /* remap the failing block length */
204 #define UDFONERROR_BITS "\20\1UPDATE_TRACKINFO\2REMAP_BLOCK"
207 /* readdir cookies */
208 #define UDF_DIRCOOKIE_DOT 1
212 MALLOC_DECLARE(M_UDFMNT
);
213 MALLOC_DECLARE(M_UDFVOLD
);
214 MALLOC_DECLARE(M_UDFTEMP
);
216 extern struct pool udf_node_pool
;
230 uint8_t *blob
; /* allocated */
231 uint8_t *bits
; /* bits themselves */
232 uint8_t *pages
; /* dirty pages */
233 uint32_t max_offset
; /* in bits */
234 uint32_t data_pos
; /* position in data */
235 uint32_t metadata_pos
; /* .. in metadata */
239 struct udf_strat_args
{
240 struct udf_mount
*ump
;
241 struct udf_node
*udf_node
;
249 struct udf_strategy
{
250 int (*create_logvol_dscr
) (struct udf_strat_args
*args
);
251 void (*free_logvol_dscr
) (struct udf_strat_args
*args
);
252 int (*read_logvol_dscr
) (struct udf_strat_args
*args
);
253 int (*write_logvol_dscr
) (struct udf_strat_args
*args
);
254 void (*queuebuf
) (struct udf_strat_args
*args
);
255 void (*discstrat_init
) (struct udf_strat_args
*args
);
256 void (*discstrat_finish
) (struct udf_strat_args
*args
);
259 extern struct udf_strategy udf_strat_bootstrap
;
260 extern struct udf_strategy udf_strat_sequential
;
261 extern struct udf_strategy udf_strat_direct
;
262 extern struct udf_strategy udf_strat_rmw
;
267 struct mount
*vfs_mountp
;
269 struct mmc_discinfo discinfo
;
270 struct udf_args mount_args
;
272 /* format descriptors */
273 kmutex_t logvol_mutex
;
274 struct anchor_vdp
*anchors
[UDF_ANCHORS
]; /* anchors to VDS */
275 struct pri_vol_desc
*primary_vol
; /* identification */
276 struct logvol_desc
*logical_vol
; /* main mapping v->p */
277 struct unalloc_sp_desc
*unallocated
; /* free UDF space */
278 struct impvol_desc
*implementation
; /* likely reduntant */
279 struct logvol_int_desc
*logvol_integrity
; /* current integrity */
280 struct part_desc
*partitions
[UDF_PARTITIONS
]; /* partitions */
281 /* logvol_info is derived; points *into* other structures */
282 struct udf_logvol_info
*logvol_info
; /* integrity descr. */
284 /* fileset and root directories */
285 struct fileset_desc
*fileset_desc
; /* normally one */
287 /* tracing logvol integrity history */
288 struct udf_lvintq lvint_trace
[UDF_LVDINT_SEGMENTS
];
289 int lvopen
; /* logvol actions */
290 int lvclose
; /* logvol actions */
292 /* logical to physical translations */
293 int vtop
[UDF_PMAPS
+1]; /* vpartnr trans */
294 int vtop_tp
[UDF_PMAPS
+1]; /* type of trans */
296 /* disc allocation / writing method */
297 kmutex_t allocate_mutex
;
298 int lvreadwrite
; /* error handling */
299 int vtop_alloc
[UDF_PMAPS
+1]; /* alloc scheme */
304 /* sequential track info */
305 struct mmc_trackinfo data_track
;
306 struct mmc_trackinfo metadata_track
;
309 uint32_t first_possible_vat_location
;
310 uint32_t last_possible_vat_location
;
311 uint32_t vat_entries
;
312 uint32_t vat_offset
; /* offset in table */
313 uint32_t vat_last_free_lb
; /* last free lb_num */
314 uint32_t vat_table_len
;
315 uint32_t vat_table_alloc_len
;
317 uint8_t *vat_pages
; /* TODO */
318 struct udf_node
*vat_node
; /* system node */
320 /* space bitmaps for physical partitions */
321 struct space_bitmap_desc
*part_unalloc_dscr
[UDF_PARTITIONS
];
322 struct space_bitmap_desc
*part_freed_dscr
[UDF_PARTITIONS
];
323 struct udf_bitmap part_unalloc_bits
[UDF_PARTITIONS
];
324 struct udf_bitmap part_freed_bits
[UDF_PARTITIONS
];
327 uint32_t sparable_packet_size
;
328 uint32_t packet_size
;
329 struct udf_sparing_table
*sparing_table
;
332 struct udf_node
*metadata_node
; /* system node */
333 struct udf_node
*metadatamirror_node
; /* system node */
334 struct udf_node
*metadatabitmap_node
; /* system node */
335 struct space_bitmap_desc
*metadata_unalloc_dscr
;
336 struct udf_bitmap metadata_unalloc_bits
;
337 uint32_t metadata_alloc_unit_size
;
338 uint16_t metadata_alignment_unit_size
;
339 uint8_t metadata_flags
;
341 /* rb tree for lookup icb to udf_node and sorted list for sync */
342 struct rb_tree udf_node_tree
;
345 int syncing
; /* are we syncing? */
346 kmutex_t sync_lock
; /* serialize syncing */
348 /* late allocation */
349 int32_t uncommitted_lbs
[UDF_PARTITIONS
];
350 struct long_ad
*la_node_ad_cpy
; /* issue buf */
351 uint64_t *la_lmapping
, *la_pmapping
; /* issue buf */
354 STAILQ_HEAD(udfmntpts
, udf_mount
) all_udf_mntpnts
;
356 /* device strategy */
357 struct udf_strategy
*strategy
;
358 void *strategy_private
;
362 * UDF node describing a file/directory.
364 * BUGALERT claim node_mutex before reading/writing to prevent inconsistencies !
367 struct genfs_node i_gnode
; /* has to be first */
368 struct vnode
*vnode
; /* vnode associated */
369 struct udf_mount
*ump
;
372 kcondvar_t node_lock
; /* sleeping lock */
373 char const *lock_fname
;
376 /* rb_node for fast lookup and fast sequential visiting */
377 struct rb_node rbnode
;
379 /* one of `fe' or `efe' can be set, not both (UDF file entry dscr.) */
380 struct file_entry
*fe
;
381 struct extfile_entry
*efe
;
382 struct alloc_ext_entry
*ext
[UDF_MAX_ALLOC_EXTENTS
];
385 /* location found, recording location & hints */
386 struct long_ad loc
; /* FID/hash loc. */
387 struct long_ad write_loc
; /* strat 4096 loc */
388 int needs_indirect
; /* has missing indr. */
389 struct long_ad ext_loc
[UDF_MAX_ALLOC_EXTENTS
];
391 struct dirhash
*dir_hash
;
394 uint32_t i_flags
; /* associated flags */
395 struct lockf
*lockf
; /* lock list */
396 uint32_t outstanding_bufs
; /* file data */
397 uint32_t outstanding_nodedscr
; /* node dscr */
398 int32_t uncommitted_lbs
; /* in UBC */
400 /* references to associated nodes */
401 struct udf_node
*extattr
;
402 struct udf_node
*streamdir
;
403 struct udf_node
*my_parent
; /* if extended attr. */
407 /* misc. flags stored in i_flags (XXX needs cleaning up) */
408 #define IN_ACCESS 0x0001 /* Inode access time update request */
409 #define IN_CHANGE 0x0002 /* Inode change time update request */
410 #define IN_UPDATE 0x0004 /* Inode was written to; update mtime*/
411 #define IN_MODIFY 0x0008 /* Modification time update request */
412 #define IN_MODIFIED 0x0010 /* node has been modified */
413 #define IN_ACCESSED 0x0020 /* node has been accessed */
414 #define IN_RENAME 0x0040 /* node is being renamed. XXX ?? */
415 #define IN_DELETED 0x0080 /* node is unlinked, no FID reference*/
416 #define IN_LOCKED 0x0100 /* node is locked by condvar */
417 #define IN_SYNCED 0x0200 /* node is being used by sync */
418 #define IN_CALLBACK_ULK 0x0400 /* node will be unlocked by callback */
419 #define IN_NODE_REBUILD 0x0800 /* node is rebuild */
422 #define IN_FLAGBITS \
423 "\10\1IN_ACCESS\2IN_CHANGE\3IN_UPDATE\4IN_MODIFY\5IN_MODIFIED" \
424 "\6IN_ACCESSED\7IN_RENAME\10IN_DELETED\11IN_LOCKED\12IN_SYNCED" \
425 "\13IN_CALLBACK_ULK\14IN_NODE_REBUILD"
427 #endif /* !_FS_UDF_UDF_H_ */