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-rw-r--r--fs/hpfs/hpfs.h439
1 files changed, 257 insertions, 182 deletions
diff --git a/fs/hpfs/hpfs.h b/fs/hpfs/hpfs.h
index 0e84c73cd9c4..8b0650aae328 100644
--- a/fs/hpfs/hpfs.h
+++ b/fs/hpfs/hpfs.h
@@ -19,9 +19,13 @@
19 For definitive information on HPFS, ask somebody else -- this is guesswork. 19 For definitive information on HPFS, ask somebody else -- this is guesswork.
20 There are certain to be many mistakes. */ 20 There are certain to be many mistakes. */
21 21
22#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
23#error unknown endian
24#endif
25
22/* Notation */ 26/* Notation */
23 27
24typedef unsigned secno; /* sector number, partition relative */ 28typedef u32 secno; /* sector number, partition relative */
25 29
26typedef secno dnode_secno; /* sector number of a dnode */ 30typedef secno dnode_secno; /* sector number of a dnode */
27typedef secno fnode_secno; /* sector number of an fnode */ 31typedef secno fnode_secno; /* sector number of an fnode */
@@ -38,28 +42,28 @@ typedef u32 time32_t; /* 32-bit time_t type */
38 42
39struct hpfs_boot_block 43struct hpfs_boot_block
40{ 44{
41 unsigned char jmp[3]; 45 u8 jmp[3];
42 unsigned char oem_id[8]; 46 u8 oem_id[8];
43 unsigned char bytes_per_sector[2]; /* 512 */ 47 u8 bytes_per_sector[2]; /* 512 */
44 unsigned char sectors_per_cluster; 48 u8 sectors_per_cluster;
45 unsigned char n_reserved_sectors[2]; 49 u8 n_reserved_sectors[2];
46 unsigned char n_fats; 50 u8 n_fats;
47 unsigned char n_rootdir_entries[2]; 51 u8 n_rootdir_entries[2];
48 unsigned char n_sectors_s[2]; 52 u8 n_sectors_s[2];
49 unsigned char media_byte; 53 u8 media_byte;
50 unsigned short sectors_per_fat; 54 u16 sectors_per_fat;
51 unsigned short sectors_per_track; 55 u16 sectors_per_track;
52 unsigned short heads_per_cyl; 56 u16 heads_per_cyl;
53 unsigned int n_hidden_sectors; 57 u32 n_hidden_sectors;
54 unsigned int n_sectors_l; /* size of partition */ 58 u32 n_sectors_l; /* size of partition */
55 unsigned char drive_number; 59 u8 drive_number;
56 unsigned char mbz; 60 u8 mbz;
57 unsigned char sig_28h; /* 28h */ 61 u8 sig_28h; /* 28h */
58 unsigned char vol_serno[4]; 62 u8 vol_serno[4];
59 unsigned char vol_label[11]; 63 u8 vol_label[11];
60 unsigned char sig_hpfs[8]; /* "HPFS " */ 64 u8 sig_hpfs[8]; /* "HPFS " */
61 unsigned char pad[448]; 65 u8 pad[448];
62 unsigned short magic; /* aa55 */ 66 u16 magic; /* aa55 */
63}; 67};
64 68
65 69
@@ -71,31 +75,29 @@ struct hpfs_boot_block
71 75
72struct hpfs_super_block 76struct hpfs_super_block
73{ 77{
74 unsigned magic; /* f995 e849 */ 78 u32 magic; /* f995 e849 */
75 unsigned magic1; /* fa53 e9c5, more magic? */ 79 u32 magic1; /* fa53 e9c5, more magic? */
76 /*unsigned huh202;*/ /* ?? 202 = N. of B. in 1.00390625 S.*/ 80 u8 version; /* version of a filesystem usually 2 */
77 char version; /* version of a filesystem usually 2 */ 81 u8 funcversion; /* functional version - oldest version
78 char funcversion; /* functional version - oldest version
79 of filesystem that can understand 82 of filesystem that can understand
80 this disk */ 83 this disk */
81 unsigned short int zero; /* 0 */ 84 u16 zero; /* 0 */
82 fnode_secno root; /* fnode of root directory */ 85 fnode_secno root; /* fnode of root directory */
83 secno n_sectors; /* size of filesystem */ 86 secno n_sectors; /* size of filesystem */
84 unsigned n_badblocks; /* number of bad blocks */ 87 u32 n_badblocks; /* number of bad blocks */
85 secno bitmaps; /* pointers to free space bit maps */ 88 secno bitmaps; /* pointers to free space bit maps */
86 unsigned zero1; /* 0 */ 89 u32 zero1; /* 0 */
87 secno badblocks; /* bad block list */ 90 secno badblocks; /* bad block list */
88 unsigned zero3; /* 0 */ 91 u32 zero3; /* 0 */
89 time32_t last_chkdsk; /* date last checked, 0 if never */ 92 time32_t last_chkdsk; /* date last checked, 0 if never */
90 /*unsigned zero4;*/ /* 0 */ 93 time32_t last_optimize; /* date last optimized, 0 if never */
91 time32_t last_optimize; /* date last optimized, 0 if never */
92 secno n_dir_band; /* number of sectors in dir band */ 94 secno n_dir_band; /* number of sectors in dir band */
93 secno dir_band_start; /* first sector in dir band */ 95 secno dir_band_start; /* first sector in dir band */
94 secno dir_band_end; /* last sector in dir band */ 96 secno dir_band_end; /* last sector in dir band */
95 secno dir_band_bitmap; /* free space map, 1 dnode per bit */ 97 secno dir_band_bitmap; /* free space map, 1 dnode per bit */
96 char volume_name[32]; /* not used */ 98 u8 volume_name[32]; /* not used */
97 secno user_id_table; /* 8 preallocated sectors - user id */ 99 secno user_id_table; /* 8 preallocated sectors - user id */
98 unsigned zero6[103]; /* 0 */ 100 u32 zero6[103]; /* 0 */
99}; 101};
100 102
101 103
@@ -107,44 +109,65 @@ struct hpfs_super_block
107 109
108struct hpfs_spare_block 110struct hpfs_spare_block
109{ 111{
110 unsigned magic; /* f991 1849 */ 112 u32 magic; /* f991 1849 */
111 unsigned magic1; /* fa52 29c5, more magic? */ 113 u32 magic1; /* fa52 29c5, more magic? */
112 114
113 unsigned dirty: 1; /* 0 clean, 1 "improperly stopped" */ 115#ifdef __LITTLE_ENDIAN
114 /*unsigned flag1234: 4;*/ /* unknown flags */ 116 u8 dirty: 1; /* 0 clean, 1 "improperly stopped" */
115 unsigned sparedir_used: 1; /* spare dirblks used */ 117 u8 sparedir_used: 1; /* spare dirblks used */
116 unsigned hotfixes_used: 1; /* hotfixes used */ 118 u8 hotfixes_used: 1; /* hotfixes used */
117 unsigned bad_sector: 1; /* bad sector, corrupted disk (???) */ 119 u8 bad_sector: 1; /* bad sector, corrupted disk (???) */
118 unsigned bad_bitmap: 1; /* bad bitmap */ 120 u8 bad_bitmap: 1; /* bad bitmap */
119 unsigned fast: 1; /* partition was fast formatted */ 121 u8 fast: 1; /* partition was fast formatted */
120 unsigned old_wrote: 1; /* old version wrote to partion */ 122 u8 old_wrote: 1; /* old version wrote to partion */
121 unsigned old_wrote_1: 1; /* old version wrote to partion (?) */ 123 u8 old_wrote_1: 1; /* old version wrote to partion (?) */
122 unsigned install_dasd_limits: 1; /* HPFS386 flags */ 124#else
123 unsigned resynch_dasd_limits: 1; 125 u8 old_wrote_1: 1; /* old version wrote to partion (?) */
124 unsigned dasd_limits_operational: 1; 126 u8 old_wrote: 1; /* old version wrote to partion */
125 unsigned multimedia_active: 1; 127 u8 fast: 1; /* partition was fast formatted */
126 unsigned dce_acls_active: 1; 128 u8 bad_bitmap: 1; /* bad bitmap */
127 unsigned dasd_limits_dirty: 1; 129 u8 bad_sector: 1; /* bad sector, corrupted disk (???) */
128 unsigned flag67: 2; 130 u8 hotfixes_used: 1; /* hotfixes used */
129 unsigned char mm_contlgulty; 131 u8 sparedir_used: 1; /* spare dirblks used */
130 unsigned char unused; 132 u8 dirty: 1; /* 0 clean, 1 "improperly stopped" */
133#endif
134
135#ifdef __LITTLE_ENDIAN
136 u8 install_dasd_limits: 1; /* HPFS386 flags */
137 u8 resynch_dasd_limits: 1;
138 u8 dasd_limits_operational: 1;
139 u8 multimedia_active: 1;
140 u8 dce_acls_active: 1;
141 u8 dasd_limits_dirty: 1;
142 u8 flag67: 2;
143#else
144 u8 flag67: 2;
145 u8 dasd_limits_dirty: 1;
146 u8 dce_acls_active: 1;
147 u8 multimedia_active: 1;
148 u8 dasd_limits_operational: 1;
149 u8 resynch_dasd_limits: 1;
150 u8 install_dasd_limits: 1; /* HPFS386 flags */
151#endif
152
153 u8 mm_contlgulty;
154 u8 unused;
131 155
132 secno hotfix_map; /* info about remapped bad sectors */ 156 secno hotfix_map; /* info about remapped bad sectors */
133 unsigned n_spares_used; /* number of hotfixes */ 157 u32 n_spares_used; /* number of hotfixes */
134 unsigned n_spares; /* number of spares in hotfix map */ 158 u32 n_spares; /* number of spares in hotfix map */
135 unsigned n_dnode_spares_free; /* spare dnodes unused */ 159 u32 n_dnode_spares_free; /* spare dnodes unused */
136 unsigned n_dnode_spares; /* length of spare_dnodes[] list, 160 u32 n_dnode_spares; /* length of spare_dnodes[] list,
137 follows in this block*/ 161 follows in this block*/
138 secno code_page_dir; /* code page directory block */ 162 secno code_page_dir; /* code page directory block */
139 unsigned n_code_pages; /* number of code pages */ 163 u32 n_code_pages; /* number of code pages */
140 /*unsigned large_numbers[2];*/ /* ?? */ 164 u32 super_crc; /* on HPFS386 and LAN Server this is
141 unsigned super_crc; /* on HPFS386 and LAN Server this is
142 checksum of superblock, on normal 165 checksum of superblock, on normal
143 OS/2 unused */ 166 OS/2 unused */
144 unsigned spare_crc; /* on HPFS386 checksum of spareblock */ 167 u32 spare_crc; /* on HPFS386 checksum of spareblock */
145 unsigned zero1[15]; /* unused */ 168 u32 zero1[15]; /* unused */
146 dnode_secno spare_dnodes[100]; /* emergency free dnode list */ 169 dnode_secno spare_dnodes[100]; /* emergency free dnode list */
147 unsigned zero2[1]; /* room for more? */ 170 u32 zero2[1]; /* room for more? */
148}; 171};
149 172
150/* The bad block list is 4 sectors long. The first word must be zero, 173/* The bad block list is 4 sectors long. The first word must be zero,
@@ -179,18 +202,18 @@ struct hpfs_spare_block
179 202
180struct code_page_directory 203struct code_page_directory
181{ 204{
182 unsigned magic; /* 4945 21f7 */ 205 u32 magic; /* 4945 21f7 */
183 unsigned n_code_pages; /* number of pointers following */ 206 u32 n_code_pages; /* number of pointers following */
184 unsigned zero1[2]; 207 u32 zero1[2];
185 struct { 208 struct {
186 unsigned short ix; /* index */ 209 u16 ix; /* index */
187 unsigned short code_page_number; /* code page number */ 210 u16 code_page_number; /* code page number */
188 unsigned bounds; /* matches corresponding word 211 u32 bounds; /* matches corresponding word
189 in data block */ 212 in data block */
190 secno code_page_data; /* sector number of a code_page_data 213 secno code_page_data; /* sector number of a code_page_data
191 containing c.p. array */ 214 containing c.p. array */
192 unsigned short index; /* index in c.p. array in that sector*/ 215 u16 index; /* index in c.p. array in that sector*/
193 unsigned short unknown; /* some unknown value; usually 0; 216 u16 unknown; /* some unknown value; usually 0;
194 2 in Japanese version */ 217 2 in Japanese version */
195 } array[31]; /* unknown length */ 218 } array[31]; /* unknown length */
196}; 219};
@@ -201,21 +224,21 @@ struct code_page_directory
201 224
202struct code_page_data 225struct code_page_data
203{ 226{
204 unsigned magic; /* 8945 21f7 */ 227 u32 magic; /* 8945 21f7 */
205 unsigned n_used; /* # elements used in c_p_data[] */ 228 u32 n_used; /* # elements used in c_p_data[] */
206 unsigned bounds[3]; /* looks a bit like 229 u32 bounds[3]; /* looks a bit like
207 (beg1,end1), (beg2,end2) 230 (beg1,end1), (beg2,end2)
208 one byte each */ 231 one byte each */
209 unsigned short offs[3]; /* offsets from start of sector 232 u16 offs[3]; /* offsets from start of sector
210 to start of c_p_data[ix] */ 233 to start of c_p_data[ix] */
211 struct { 234 struct {
212 unsigned short ix; /* index */ 235 u16 ix; /* index */
213 unsigned short code_page_number; /* code page number */ 236 u16 code_page_number; /* code page number */
214 unsigned short unknown; /* the same as in cp directory */ 237 u16 unknown; /* the same as in cp directory */
215 unsigned char map[128]; /* upcase table for chars 80..ff */ 238 u8 map[128]; /* upcase table for chars 80..ff */
216 unsigned short zero2; 239 u16 zero2;
217 } code_page[3]; 240 } code_page[3];
218 unsigned char incognita[78]; 241 u8 incognita[78];
219}; 242};
220 243
221 244
@@ -255,50 +278,84 @@ struct code_page_data
255#define DNODE_MAGIC 0x77e40aae 278#define DNODE_MAGIC 0x77e40aae
256 279
257struct dnode { 280struct dnode {
258 unsigned magic; /* 77e4 0aae */ 281 u32 magic; /* 77e4 0aae */
259 unsigned first_free; /* offset from start of dnode to 282 u32 first_free; /* offset from start of dnode to
260 first free dir entry */ 283 first free dir entry */
261 unsigned root_dnode:1; /* Is it root dnode? */ 284#ifdef __LITTLE_ENDIAN
262 unsigned increment_me:31; /* some kind of activity counter? 285 u8 root_dnode: 1; /* Is it root dnode? */
263 Neither HPFS.IFS nor CHKDSK cares 286 u8 increment_me: 7; /* some kind of activity counter? */
287 /* Neither HPFS.IFS nor CHKDSK cares
288 if you change this word */
289#else
290 u8 increment_me: 7; /* some kind of activity counter? */
291 /* Neither HPFS.IFS nor CHKDSK cares
264 if you change this word */ 292 if you change this word */
293 u8 root_dnode: 1; /* Is it root dnode? */
294#endif
295 u8 increment_me2[3];
265 secno up; /* (root dnode) directory's fnode 296 secno up; /* (root dnode) directory's fnode
266 (nonroot) parent dnode */ 297 (nonroot) parent dnode */
267 dnode_secno self; /* pointer to this dnode */ 298 dnode_secno self; /* pointer to this dnode */
268 unsigned char dirent[2028]; /* one or more dirents */ 299 u8 dirent[2028]; /* one or more dirents */
269}; 300};
270 301
271struct hpfs_dirent { 302struct hpfs_dirent {
272 unsigned short length; /* offset to next dirent */ 303 u16 length; /* offset to next dirent */
273 unsigned first: 1; /* set on phony ^A^A (".") entry */ 304
274 unsigned has_acl: 1; 305#ifdef __LITTLE_ENDIAN
275 unsigned down: 1; /* down pointer present (after name) */ 306 u8 first: 1; /* set on phony ^A^A (".") entry */
276 unsigned last: 1; /* set on phony \377 entry */ 307 u8 has_acl: 1;
277 unsigned has_ea: 1; /* entry has EA */ 308 u8 down: 1; /* down pointer present (after name) */
278 unsigned has_xtd_perm: 1; /* has extended perm list (???) */ 309 u8 last: 1; /* set on phony \377 entry */
279 unsigned has_explicit_acl: 1; 310 u8 has_ea: 1; /* entry has EA */
280 unsigned has_needea: 1; /* ?? some EA has NEEDEA set 311 u8 has_xtd_perm: 1; /* has extended perm list (???) */
312 u8 has_explicit_acl: 1;
313 u8 has_needea: 1; /* ?? some EA has NEEDEA set
314 I have no idea why this is
315 interesting in a dir entry */
316#else
317 u8 has_needea: 1; /* ?? some EA has NEEDEA set
281 I have no idea why this is 318 I have no idea why this is
282 interesting in a dir entry */ 319 interesting in a dir entry */
283 unsigned read_only: 1; /* dos attrib */ 320 u8 has_explicit_acl: 1;
284 unsigned hidden: 1; /* dos attrib */ 321 u8 has_xtd_perm: 1; /* has extended perm list (???) */
285 unsigned system: 1; /* dos attrib */ 322 u8 has_ea: 1; /* entry has EA */
286 unsigned flag11: 1; /* would be volume label dos attrib */ 323 u8 last: 1; /* set on phony \377 entry */
287 unsigned directory: 1; /* dos attrib */ 324 u8 down: 1; /* down pointer present (after name) */
288 unsigned archive: 1; /* dos attrib */ 325 u8 has_acl: 1;
289 unsigned not_8x3: 1; /* name is not 8.3 */ 326 u8 first: 1; /* set on phony ^A^A (".") entry */
290 unsigned flag15: 1; 327#endif
328
329#ifdef __LITTLE_ENDIAN
330 u8 read_only: 1; /* dos attrib */
331 u8 hidden: 1; /* dos attrib */
332 u8 system: 1; /* dos attrib */
333 u8 flag11: 1; /* would be volume label dos attrib */
334 u8 directory: 1; /* dos attrib */
335 u8 archive: 1; /* dos attrib */
336 u8 not_8x3: 1; /* name is not 8.3 */
337 u8 flag15: 1;
338#else
339 u8 flag15: 1;
340 u8 not_8x3: 1; /* name is not 8.3 */
341 u8 archive: 1; /* dos attrib */
342 u8 directory: 1; /* dos attrib */
343 u8 flag11: 1; /* would be volume label dos attrib */
344 u8 system: 1; /* dos attrib */
345 u8 hidden: 1; /* dos attrib */
346 u8 read_only: 1; /* dos attrib */
347#endif
348
291 fnode_secno fnode; /* fnode giving allocation info */ 349 fnode_secno fnode; /* fnode giving allocation info */
292 time32_t write_date; /* mtime */ 350 time32_t write_date; /* mtime */
293 unsigned file_size; /* file length, bytes */ 351 u32 file_size; /* file length, bytes */
294 time32_t read_date; /* atime */ 352 time32_t read_date; /* atime */
295 time32_t creation_date; /* ctime */ 353 time32_t creation_date; /* ctime */
296 unsigned ea_size; /* total EA length, bytes */ 354 u32 ea_size; /* total EA length, bytes */
297 unsigned char no_of_acls : 3; /* number of ACL's */ 355 u8 no_of_acls; /* number of ACL's (low 3 bits) */
298 unsigned char reserver : 5; 356 u8 ix; /* code page index (of filename), see
299 unsigned char ix; /* code page index (of filename), see
300 struct code_page_data */ 357 struct code_page_data */
301 unsigned char namelen, name[1]; /* file name */ 358 u8 namelen, name[1]; /* file name */
302 /* dnode_secno down; btree down pointer, if present, 359 /* dnode_secno down; btree down pointer, if present,
303 follows name on next word boundary, or maybe it 360 follows name on next word boundary, or maybe it
304 precedes next dirent, which is on a word boundary. */ 361 precedes next dirent, which is on a word boundary. */
@@ -318,38 +375,50 @@ struct hpfs_dirent {
318 375
319struct bplus_leaf_node 376struct bplus_leaf_node
320{ 377{
321 unsigned file_secno; /* first file sector in extent */ 378 u32 file_secno; /* first file sector in extent */
322 unsigned length; /* length, sectors */ 379 u32 length; /* length, sectors */
323 secno disk_secno; /* first corresponding disk sector */ 380 secno disk_secno; /* first corresponding disk sector */
324}; 381};
325 382
326struct bplus_internal_node 383struct bplus_internal_node
327{ 384{
328 unsigned file_secno; /* subtree maps sectors < this */ 385 u32 file_secno; /* subtree maps sectors < this */
329 anode_secno down; /* pointer to subtree */ 386 anode_secno down; /* pointer to subtree */
330}; 387};
331 388
332struct bplus_header 389struct bplus_header
333{ 390{
334 unsigned hbff: 1; /* high bit of first free entry offset */ 391#ifdef __LITTLE_ENDIAN
335 unsigned flag1: 1; 392 u8 hbff: 1; /* high bit of first free entry offset */
336 unsigned flag2: 1; 393 u8 flag1234: 4;
337 unsigned flag3: 1; 394 u8 fnode_parent: 1; /* ? we're pointed to by an fnode,
338 unsigned flag4: 1;
339 unsigned fnode_parent: 1; /* ? we're pointed to by an fnode,
340 the data btree or some ea or the 395 the data btree or some ea or the
341 main ea bootage pointer ea_secno */ 396 main ea bootage pointer ea_secno */
342 /* also can get set in fnodes, which 397 /* also can get set in fnodes, which
343 may be a chkdsk glitch or may mean 398 may be a chkdsk glitch or may mean
344 this bit is irrelevant in fnodes, 399 this bit is irrelevant in fnodes,
345 or this interpretation is all wet */ 400 or this interpretation is all wet */
346 unsigned binary_search: 1; /* suggest binary search (unused) */ 401 u8 binary_search: 1; /* suggest binary search (unused) */
347 unsigned internal: 1; /* 1 -> (internal) tree of anodes 402 u8 internal: 1; /* 1 -> (internal) tree of anodes
403 0 -> (leaf) list of extents */
404#else
405 u8 internal: 1; /* 1 -> (internal) tree of anodes
348 0 -> (leaf) list of extents */ 406 0 -> (leaf) list of extents */
349 unsigned char fill[3]; 407 u8 binary_search: 1; /* suggest binary search (unused) */
350 unsigned char n_free_nodes; /* free nodes in following array */ 408 u8 fnode_parent: 1; /* ? we're pointed to by an fnode,
351 unsigned char n_used_nodes; /* used nodes in following array */ 409 the data btree or some ea or the
352 unsigned short first_free; /* offset from start of header to 410 main ea bootage pointer ea_secno */
411 /* also can get set in fnodes, which
412 may be a chkdsk glitch or may mean
413 this bit is irrelevant in fnodes,
414 or this interpretation is all wet */
415 u8 flag1234: 4;
416 u8 hbff: 1; /* high bit of first free entry offset */
417#endif
418 u8 fill[3];
419 u8 n_free_nodes; /* free nodes in following array */
420 u8 n_used_nodes; /* used nodes in following array */
421 u16 first_free; /* offset from start of header to
353 first free node in array */ 422 first free node in array */
354 union { 423 union {
355 struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving 424 struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
@@ -369,37 +438,38 @@ struct bplus_header
369 438
370struct fnode 439struct fnode
371{ 440{
372 unsigned magic; /* f7e4 0aae */ 441 u32 magic; /* f7e4 0aae */
373 unsigned zero1[2]; /* read history */ 442 u32 zero1[2]; /* read history */
374 unsigned char len, name[15]; /* true length, truncated name */ 443 u8 len, name[15]; /* true length, truncated name */
375 fnode_secno up; /* pointer to file's directory fnode */ 444 fnode_secno up; /* pointer to file's directory fnode */
376 /*unsigned zero2[3];*/
377 secno acl_size_l; 445 secno acl_size_l;
378 secno acl_secno; 446 secno acl_secno;
379 unsigned short acl_size_s; 447 u16 acl_size_s;
380 char acl_anode; 448 u8 acl_anode;
381 char zero2; /* history bit count */ 449 u8 zero2; /* history bit count */
382 unsigned ea_size_l; /* length of disk-resident ea's */ 450 u32 ea_size_l; /* length of disk-resident ea's */
383 secno ea_secno; /* first sector of disk-resident ea's*/ 451 secno ea_secno; /* first sector of disk-resident ea's*/
384 unsigned short ea_size_s; /* length of fnode-resident ea's */ 452 u16 ea_size_s; /* length of fnode-resident ea's */
385 453
386 unsigned flag0: 1; 454#ifdef __LITTLE_ENDIAN
387 unsigned ea_anode: 1; /* 1 -> ea_secno is an anode */ 455 u8 flag0: 1;
388 unsigned flag2: 1; 456 u8 ea_anode: 1; /* 1 -> ea_secno is an anode */
389 unsigned flag3: 1; 457 u8 flag234567: 6;
390 unsigned flag4: 1; 458#else
391 unsigned flag5: 1; 459 u8 flag234567: 6;
392 unsigned flag6: 1; 460 u8 ea_anode: 1; /* 1 -> ea_secno is an anode */
393 unsigned flag7: 1; 461 u8 flag0: 1;
394 unsigned dirflag: 1; /* 1 -> directory. first & only extent 462#endif
463
464#ifdef __LITTLE_ENDIAN
465 u8 dirflag: 1; /* 1 -> directory. first & only extent
395 points to dnode. */ 466 points to dnode. */
396 unsigned flag9: 1; 467 u8 flag9012345: 7;
397 unsigned flag10: 1; 468#else
398 unsigned flag11: 1; 469 u8 flag9012345: 7;
399 unsigned flag12: 1; 470 u8 dirflag: 1; /* 1 -> directory. first & only extent
400 unsigned flag13: 1; 471 points to dnode. */
401 unsigned flag14: 1; 472#endif
402 unsigned flag15: 1;
403 473
404 struct bplus_header btree; /* b+ tree, 8 extents or 12 subtrees */ 474 struct bplus_header btree; /* b+ tree, 8 extents or 12 subtrees */
405 union { 475 union {
@@ -407,17 +477,16 @@ struct fnode
407 struct bplus_internal_node internal[12]; 477 struct bplus_internal_node internal[12];
408 } u; 478 } u;
409 479
410 unsigned file_size; /* file length, bytes */ 480 u32 file_size; /* file length, bytes */
411 unsigned n_needea; /* number of EA's with NEEDEA set */ 481 u32 n_needea; /* number of EA's with NEEDEA set */
412 char user_id[16]; /* unused */ 482 u8 user_id[16]; /* unused */
413 unsigned short ea_offs; /* offset from start of fnode 483 u16 ea_offs; /* offset from start of fnode
414 to first fnode-resident ea */ 484 to first fnode-resident ea */
415 char dasd_limit_treshhold; 485 u8 dasd_limit_treshhold;
416 char dasd_limit_delta; 486 u8 dasd_limit_delta;
417 unsigned dasd_limit; 487 u32 dasd_limit;
418 unsigned dasd_usage; 488 u32 dasd_usage;
419 /*unsigned zero5[2];*/ 489 u8 ea[316]; /* zero or more EA's, packed together
420 unsigned char ea[316]; /* zero or more EA's, packed together
421 with no alignment padding. 490 with no alignment padding.
422 (Do not use this name, get here 491 (Do not use this name, get here
423 via fnode + ea_offs. I think.) */ 492 via fnode + ea_offs. I think.) */
@@ -430,7 +499,7 @@ struct fnode
430 499
431struct anode 500struct anode
432{ 501{
433 unsigned magic; /* 37e4 0aae */ 502 u32 magic; /* 37e4 0aae */
434 anode_secno self; /* pointer to this anode */ 503 anode_secno self; /* pointer to this anode */
435 secno up; /* parent anode or fnode */ 504 secno up; /* parent anode or fnode */
436 505
@@ -440,7 +509,7 @@ struct anode
440 struct bplus_internal_node internal[60]; 509 struct bplus_internal_node internal[60];
441 } u; 510 } u;
442 511
443 unsigned fill[3]; /* unused */ 512 u32 fill[3]; /* unused */
444}; 513};
445 514
446 515
@@ -461,25 +530,31 @@ struct anode
461 530
462struct extended_attribute 531struct extended_attribute
463{ 532{
464 unsigned indirect: 1; /* 1 -> value gives sector number 533#ifdef __LITTLE_ENDIAN
534 u8 indirect: 1; /* 1 -> value gives sector number
465 where real value starts */ 535 where real value starts */
466 unsigned anode: 1; /* 1 -> sector is an anode 536 u8 anode: 1; /* 1 -> sector is an anode
537 that points to fragmented value */
538 u8 flag23456: 5;
539 u8 needea: 1; /* required ea */
540#else
541 u8 needea: 1; /* required ea */
542 u8 flag23456: 5;
543 u8 anode: 1; /* 1 -> sector is an anode
467 that points to fragmented value */ 544 that points to fragmented value */
468 unsigned flag2: 1; 545 u8 indirect: 1; /* 1 -> value gives sector number
469 unsigned flag3: 1; 546 where real value starts */
470 unsigned flag4: 1; 547#endif
471 unsigned flag5: 1; 548 u8 namelen; /* length of name, bytes */
472 unsigned flag6: 1; 549 u8 valuelen_lo; /* length of value, bytes */
473 unsigned needea: 1; /* required ea */ 550 u8 valuelen_hi; /* length of value, bytes */
474 unsigned char namelen; /* length of name, bytes */ 551 u8 name[0];
475 unsigned short valuelen; /* length of value, bytes */
476 unsigned char name[0];
477 /* 552 /*
478 unsigned char name[namelen]; ascii attrib name 553 u8 name[namelen]; ascii attrib name
479 unsigned char nul; terminating '\0', not counted 554 u8 nul; terminating '\0', not counted
480 unsigned char value[valuelen]; value, arbitrary 555 u8 value[valuelen]; value, arbitrary
481 if this.indirect, valuelen is 8 and the value is 556 if this.indirect, valuelen is 8 and the value is
482 unsigned length; real length of value, bytes 557 u32 length; real length of value, bytes
483 secno secno; sector address where it starts 558 secno secno; sector address where it starts
484 if this.anode, the above sector number is the root of an anode tree 559 if this.anode, the above sector number is the root of an anode tree
485 which points to the value. 560 which points to the value.