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Commit | Line | Data |
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2bd0ea18 | 1 | /* |
da23017d NS |
2 | * Copyright (c) 2000-2001,2004-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
dfc130f3 | 4 | * |
da23017d NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
2bd0ea18 | 7 | * published by the Free Software Foundation. |
dfc130f3 | 8 | * |
da23017d NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
dfc130f3 | 13 | * |
da23017d NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
2bd0ea18 NS |
17 | */ |
18 | ||
6b803e5a | 19 | #include "libxfs.h" |
2bd0ea18 NS |
20 | #include "bit.h" |
21 | #include "type.h" | |
22 | #include "faddr.h" | |
23 | #include "fprint.h" | |
24 | #include "field.h" | |
25 | #include "attr.h" | |
26 | #include "io.h" | |
4ca431fc | 27 | #include "init.h" |
2847273f | 28 | #include "output.h" |
2bd0ea18 NS |
29 | |
30 | static int attr_leaf_entries_count(void *obj, int startoff); | |
31 | static int attr_leaf_hdr_count(void *obj, int startoff); | |
32 | static int attr_leaf_name_local_count(void *obj, int startoff); | |
33 | static int attr_leaf_name_local_name_count(void *obj, int startoff); | |
34 | static int attr_leaf_name_local_value_count(void *obj, int startoff); | |
35 | static int attr_leaf_name_local_value_offset(void *obj, int startoff, | |
36 | int idx); | |
37 | static int attr_leaf_name_remote_count(void *obj, int startoff); | |
38 | static int attr_leaf_name_remote_name_count(void *obj, int startoff); | |
39 | static int attr_leaf_nvlist_count(void *obj, int startoff); | |
40 | static int attr_leaf_nvlist_offset(void *obj, int startoff, int idx); | |
41 | static int attr_node_btree_count(void *obj, int startoff); | |
42 | static int attr_node_hdr_count(void *obj, int startoff); | |
43 | ||
29b90b5b DW |
44 | static int attr_remote_data_count(void *obj, int startoff); |
45 | static int attr3_remote_hdr_count(void *obj, int startoff); | |
46 | static int attr3_remote_data_count(void *obj, int startoff); | |
47 | ||
2bd0ea18 NS |
48 | const field_t attr_hfld[] = { |
49 | { "", FLDT_ATTR, OI(0), C1, 0, TYP_NONE }, | |
50 | { NULL } | |
51 | }; | |
52 | ||
53 | #define LOFF(f) bitize(offsetof(xfs_attr_leafblock_t, f)) | |
54 | #define NOFF(f) bitize(offsetof(xfs_da_intnode_t, f)) | |
55 | const field_t attr_flds[] = { | |
56 | { "hdr", FLDT_ATTR_LEAF_HDR, OI(LOFF(hdr)), attr_leaf_hdr_count, | |
57 | FLD_COUNT, TYP_NONE }, | |
58 | { "hdr", FLDT_ATTR_NODE_HDR, OI(NOFF(hdr)), attr_node_hdr_count, | |
59 | FLD_COUNT, TYP_NONE }, | |
29b90b5b DW |
60 | { "data", FLDT_CHARNS, OI(0), attr_remote_data_count, FLD_COUNT, |
61 | TYP_NONE }, | |
2bd0ea18 NS |
62 | { "entries", FLDT_ATTR_LEAF_ENTRY, OI(LOFF(entries)), |
63 | attr_leaf_entries_count, FLD_ARRAY|FLD_COUNT, TYP_NONE }, | |
88b32f06 | 64 | { "btree", FLDT_ATTR_NODE_ENTRY, OI(NOFF(__btree)), attr_node_btree_count, |
2bd0ea18 NS |
65 | FLD_ARRAY|FLD_COUNT, TYP_NONE }, |
66 | { "nvlist", FLDT_ATTR_LEAF_NAME, attr_leaf_nvlist_offset, | |
67 | attr_leaf_nvlist_count, FLD_ARRAY|FLD_OFFSET|FLD_COUNT, TYP_NONE }, | |
68 | { NULL } | |
69 | }; | |
70 | ||
71 | #define BOFF(f) bitize(offsetof(xfs_da_blkinfo_t, f)) | |
72 | const field_t attr_blkinfo_flds[] = { | |
73 | { "forw", FLDT_ATTRBLOCK, OI(BOFF(forw)), C1, 0, TYP_ATTR }, | |
74 | { "back", FLDT_ATTRBLOCK, OI(BOFF(back)), C1, 0, TYP_ATTR }, | |
75 | { "magic", FLDT_UINT16X, OI(BOFF(magic)), C1, 0, TYP_NONE }, | |
76 | { "pad", FLDT_UINT16X, OI(BOFF(pad)), C1, FLD_SKIPALL, TYP_NONE }, | |
77 | { NULL } | |
78 | }; | |
79 | ||
80 | #define LEOFF(f) bitize(offsetof(xfs_attr_leaf_entry_t, f)) | |
81 | const field_t attr_leaf_entry_flds[] = { | |
82 | { "hashval", FLDT_UINT32X, OI(LEOFF(hashval)), C1, 0, TYP_NONE }, | |
83 | { "nameidx", FLDT_UINT16D, OI(LEOFF(nameidx)), C1, 0, TYP_NONE }, | |
84 | { "flags", FLDT_UINT8X, OI(LEOFF(flags)), C1, FLD_SKIPALL, TYP_NONE }, | |
85 | { "incomplete", FLDT_UINT1, | |
14f8b681 | 86 | OI(LEOFF(flags) + bitsz(uint8_t) - XFS_ATTR_INCOMPLETE_BIT - 1), C1, |
2bd0ea18 NS |
87 | 0, TYP_NONE }, |
88 | { "root", FLDT_UINT1, | |
14f8b681 | 89 | OI(LEOFF(flags) + bitsz(uint8_t) - XFS_ATTR_ROOT_BIT - 1), C1, 0, |
2bd0ea18 | 90 | TYP_NONE }, |
4b0c5771 | 91 | { "secure", FLDT_UINT1, |
14f8b681 | 92 | OI(LEOFF(flags) + bitsz(uint8_t) - XFS_ATTR_SECURE_BIT - 1), C1, 0, |
4b0c5771 | 93 | TYP_NONE }, |
2bd0ea18 | 94 | { "local", FLDT_UINT1, |
14f8b681 | 95 | OI(LEOFF(flags) + bitsz(uint8_t) - XFS_ATTR_LOCAL_BIT - 1), C1, 0, |
2bd0ea18 NS |
96 | TYP_NONE }, |
97 | { "pad2", FLDT_UINT8X, OI(LEOFF(pad2)), C1, FLD_SKIPALL, TYP_NONE }, | |
98 | { NULL } | |
99 | }; | |
100 | ||
101 | #define LHOFF(f) bitize(offsetof(xfs_attr_leaf_hdr_t, f)) | |
102 | const field_t attr_leaf_hdr_flds[] = { | |
103 | { "info", FLDT_ATTR_BLKINFO, OI(LHOFF(info)), C1, 0, TYP_NONE }, | |
104 | { "count", FLDT_UINT16D, OI(LHOFF(count)), C1, 0, TYP_NONE }, | |
105 | { "usedbytes", FLDT_UINT16D, OI(LHOFF(usedbytes)), C1, 0, TYP_NONE }, | |
106 | { "firstused", FLDT_UINT16D, OI(LHOFF(firstused)), C1, 0, TYP_NONE }, | |
107 | { "holes", FLDT_UINT8D, OI(LHOFF(holes)), C1, 0, TYP_NONE }, | |
108 | { "pad1", FLDT_UINT8X, OI(LHOFF(pad1)), C1, FLD_SKIPALL, TYP_NONE }, | |
109 | { "freemap", FLDT_ATTR_LEAF_MAP, OI(LHOFF(freemap)), | |
110 | CI(XFS_ATTR_LEAF_MAPSIZE), FLD_ARRAY, TYP_NONE }, | |
111 | { NULL } | |
112 | }; | |
113 | ||
114 | #define LMOFF(f) bitize(offsetof(xfs_attr_leaf_map_t, f)) | |
115 | const field_t attr_leaf_map_flds[] = { | |
116 | { "base", FLDT_UINT16D, OI(LMOFF(base)), C1, 0, TYP_NONE }, | |
117 | { "size", FLDT_UINT16D, OI(LMOFF(size)), C1, 0, TYP_NONE }, | |
118 | { NULL } | |
119 | }; | |
120 | ||
121 | #define LNOFF(f) bitize(offsetof(xfs_attr_leaf_name_local_t, f)) | |
122 | #define LVOFF(f) bitize(offsetof(xfs_attr_leaf_name_remote_t, f)) | |
123 | const field_t attr_leaf_name_flds[] = { | |
124 | { "valuelen", FLDT_UINT16D, OI(LNOFF(valuelen)), | |
125 | attr_leaf_name_local_count, FLD_COUNT, TYP_NONE }, | |
126 | { "namelen", FLDT_UINT8D, OI(LNOFF(namelen)), | |
127 | attr_leaf_name_local_count, FLD_COUNT, TYP_NONE }, | |
128 | { "name", FLDT_CHARNS, OI(LNOFF(nameval)), | |
129 | attr_leaf_name_local_name_count, FLD_COUNT, TYP_NONE }, | |
130 | { "value", FLDT_CHARNS, attr_leaf_name_local_value_offset, | |
131 | attr_leaf_name_local_value_count, FLD_COUNT|FLD_OFFSET, TYP_NONE }, | |
132 | { "valueblk", FLDT_UINT32X, OI(LVOFF(valueblk)), | |
133 | attr_leaf_name_remote_count, FLD_COUNT, TYP_NONE }, | |
134 | { "valuelen", FLDT_UINT32D, OI(LVOFF(valuelen)), | |
135 | attr_leaf_name_remote_count, FLD_COUNT, TYP_NONE }, | |
136 | { "namelen", FLDT_UINT8D, OI(LVOFF(namelen)), | |
137 | attr_leaf_name_remote_count, FLD_COUNT, TYP_NONE }, | |
138 | { "name", FLDT_CHARNS, OI(LVOFF(name)), | |
139 | attr_leaf_name_remote_name_count, FLD_COUNT, TYP_NONE }, | |
140 | { NULL } | |
141 | }; | |
142 | ||
143 | #define EOFF(f) bitize(offsetof(xfs_da_node_entry_t, f)) | |
144 | const field_t attr_node_entry_flds[] = { | |
145 | { "hashval", FLDT_UINT32X, OI(EOFF(hashval)), C1, 0, TYP_NONE }, | |
146 | { "before", FLDT_ATTRBLOCK, OI(EOFF(before)), C1, 0, TYP_ATTR }, | |
147 | { NULL } | |
148 | }; | |
149 | ||
150 | #define HOFF(f) bitize(offsetof(xfs_da_node_hdr_t, f)) | |
151 | const field_t attr_node_hdr_flds[] = { | |
152 | { "info", FLDT_ATTR_BLKINFO, OI(HOFF(info)), C1, 0, TYP_NONE }, | |
a24374f4 | 153 | { "count", FLDT_UINT16D, OI(HOFF(__count)), C1, 0, TYP_NONE }, |
88b32f06 | 154 | { "level", FLDT_UINT16D, OI(HOFF(__level)), C1, 0, TYP_NONE }, |
2bd0ea18 NS |
155 | { NULL } |
156 | }; | |
157 | ||
2bd0ea18 NS |
158 | static int |
159 | attr_leaf_entries_count( | |
160 | void *obj, | |
161 | int startoff) | |
162 | { | |
ad04ef4a | 163 | struct xfs_attr_leafblock *leaf = obj; |
dfc130f3 | 164 | |
2bd0ea18 | 165 | ASSERT(startoff == 0); |
ad04ef4a | 166 | if (be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR_LEAF_MAGIC) |
2bd0ea18 | 167 | return 0; |
ad04ef4a DC |
168 | return be16_to_cpu(leaf->hdr.count); |
169 | } | |
170 | ||
171 | static int | |
172 | attr3_leaf_entries_count( | |
173 | void *obj, | |
174 | int startoff) | |
175 | { | |
176 | struct xfs_attr3_leafblock *leaf = obj; | |
177 | ||
178 | ASSERT(startoff == 0); | |
e13d0f78 | 179 | if (be16_to_cpu(leaf->hdr.info.hdr.magic) != XFS_ATTR3_LEAF_MAGIC) |
ad04ef4a DC |
180 | return 0; |
181 | return be16_to_cpu(leaf->hdr.count); | |
2bd0ea18 NS |
182 | } |
183 | ||
2bd0ea18 NS |
184 | static int |
185 | attr_leaf_hdr_count( | |
186 | void *obj, | |
187 | int startoff) | |
188 | { | |
ad04ef4a | 189 | struct xfs_attr_leafblock *leaf = obj; |
dfc130f3 | 190 | |
2bd0ea18 | 191 | ASSERT(startoff == 0); |
ad04ef4a | 192 | return be16_to_cpu(leaf->hdr.info.magic) == XFS_ATTR_LEAF_MAGIC; |
2bd0ea18 NS |
193 | } |
194 | ||
195 | static int | |
ad04ef4a | 196 | attr3_leaf_hdr_count( |
2bd0ea18 NS |
197 | void *obj, |
198 | int startoff) | |
199 | { | |
ad04ef4a DC |
200 | struct xfs_attr3_leafblock *leaf = obj; |
201 | ||
202 | ASSERT(startoff == 0); | |
203 | return be16_to_cpu(leaf->hdr.info.hdr.magic) == XFS_ATTR3_LEAF_MAGIC; | |
204 | } | |
205 | ||
29b90b5b DW |
206 | static int |
207 | attr_remote_data_count( | |
208 | void *obj, | |
209 | int startoff) | |
210 | { | |
211 | if (attr_leaf_hdr_count(obj, startoff) == 0 && | |
212 | attr_node_hdr_count(obj, startoff) == 0) | |
213 | return mp->m_sb.sb_blocksize; | |
214 | return 0; | |
215 | } | |
216 | ||
217 | static int | |
218 | attr3_remote_data_count( | |
219 | void *obj, | |
220 | int startoff) | |
221 | { | |
222 | struct xfs_attr3_rmt_hdr *hdr = obj; | |
223 | size_t buf_space; | |
224 | ||
225 | ASSERT(startoff == 0); | |
226 | ||
227 | if (hdr->rm_magic != cpu_to_be32(XFS_ATTR3_RMT_MAGIC)) | |
228 | return 0; | |
229 | buf_space = XFS_ATTR3_RMT_BUF_SPACE(mp, mp->m_sb.sb_blocksize); | |
230 | if (be32_to_cpu(hdr->rm_bytes) > buf_space) | |
231 | return buf_space; | |
232 | return be32_to_cpu(hdr->rm_bytes); | |
233 | } | |
234 | ||
ad04ef4a DC |
235 | typedef int (*attr_leaf_entry_walk_f)(struct xfs_attr_leafblock *, |
236 | struct xfs_attr_leaf_entry *, int); | |
237 | static int | |
238 | attr_leaf_entry_walk( | |
239 | void *obj, | |
240 | int startoff, | |
241 | attr_leaf_entry_walk_f func) | |
242 | { | |
243 | struct xfs_attr_leafblock *leaf = obj; | |
244 | struct xfs_attr3_icleaf_hdr leafhdr; | |
245 | struct xfs_attr_leaf_entry *entries; | |
246 | struct xfs_attr_leaf_entry *e; | |
247 | int i; | |
248 | int off; | |
2bd0ea18 NS |
249 | |
250 | ASSERT(bitoffs(startoff) == 0); | |
ad04ef4a DC |
251 | if (be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR_LEAF_MAGIC && |
252 | be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR3_LEAF_MAGIC) | |
2bd0ea18 | 253 | return 0; |
ad04ef4a DC |
254 | |
255 | off = byteize(startoff); | |
19ebedcf | 256 | xfs_attr3_leaf_hdr_from_disk(mp->m_attr_geo, &leafhdr, leaf); |
ad04ef4a DC |
257 | entries = xfs_attr3_leaf_entryp(leaf); |
258 | ||
259 | for (i = 0; i < leafhdr.count; i++) { | |
260 | e = &entries[i]; | |
5e656dbb | 261 | if (be16_to_cpu(e->nameidx) == off) |
ad04ef4a | 262 | return func(leaf, e, i); |
2bd0ea18 NS |
263 | } |
264 | return 0; | |
265 | } | |
266 | ||
ad04ef4a DC |
267 | static int |
268 | __attr_leaf_name_local_count( | |
269 | struct xfs_attr_leafblock *leaf, | |
270 | struct xfs_attr_leaf_entry *e, | |
271 | int i) | |
272 | { | |
273 | return (e->flags & XFS_ATTR_LOCAL) != 0; | |
274 | } | |
275 | ||
276 | static int | |
277 | attr_leaf_name_local_count( | |
278 | void *obj, | |
279 | int startoff) | |
280 | { | |
281 | return attr_leaf_entry_walk(obj, startoff, | |
282 | __attr_leaf_name_local_count); | |
283 | } | |
284 | ||
285 | static int | |
286 | __attr_leaf_name_local_name_count( | |
287 | struct xfs_attr_leafblock *leaf, | |
288 | struct xfs_attr_leaf_entry *e, | |
289 | int i) | |
290 | { | |
291 | struct xfs_attr_leaf_name_local *l; | |
292 | ||
293 | if (!(e->flags & XFS_ATTR_LOCAL)) | |
294 | return 0; | |
295 | ||
296 | l = xfs_attr3_leaf_name_local(leaf, i); | |
297 | return l->namelen; | |
298 | } | |
299 | ||
2bd0ea18 NS |
300 | static int |
301 | attr_leaf_name_local_name_count( | |
302 | void *obj, | |
303 | int startoff) | |
304 | { | |
ad04ef4a DC |
305 | return attr_leaf_entry_walk(obj, startoff, |
306 | __attr_leaf_name_local_name_count); | |
307 | } | |
2bd0ea18 | 308 | |
ad04ef4a DC |
309 | static int |
310 | __attr_leaf_name_local_value_count( | |
311 | struct xfs_attr_leafblock *leaf, | |
312 | struct xfs_attr_leaf_entry *e, | |
313 | int i) | |
314 | { | |
315 | struct xfs_attr_leaf_name_local *l; | |
316 | ||
317 | if (!(e->flags & XFS_ATTR_LOCAL)) | |
2bd0ea18 | 318 | return 0; |
ad04ef4a DC |
319 | |
320 | l = xfs_attr3_leaf_name_local(leaf, i); | |
321 | return be16_to_cpu(l->valuelen); | |
2bd0ea18 NS |
322 | } |
323 | ||
324 | static int | |
325 | attr_leaf_name_local_value_count( | |
326 | void *obj, | |
327 | int startoff) | |
328 | { | |
ad04ef4a DC |
329 | return attr_leaf_entry_walk(obj, startoff, |
330 | __attr_leaf_name_local_value_count); | |
331 | } | |
2bd0ea18 | 332 | |
ad04ef4a DC |
333 | static int |
334 | __attr_leaf_name_local_value_offset( | |
335 | struct xfs_attr_leafblock *leaf, | |
336 | struct xfs_attr_leaf_entry *e, | |
337 | int i) | |
338 | { | |
339 | struct xfs_attr_leaf_name_local *l; | |
340 | char *vp; | |
341 | ||
342 | l = xfs_attr3_leaf_name_local(leaf, i); | |
343 | vp = (char *)&l->nameval[l->namelen]; | |
344 | ||
345 | return (int)bitize(vp - (char *)l); | |
2bd0ea18 NS |
346 | } |
347 | ||
2bd0ea18 NS |
348 | static int |
349 | attr_leaf_name_local_value_offset( | |
350 | void *obj, | |
351 | int startoff, | |
352 | int idx) | |
353 | { | |
ad04ef4a DC |
354 | return attr_leaf_entry_walk(obj, startoff, |
355 | __attr_leaf_name_local_value_offset); | |
356 | } | |
dfc130f3 | 357 | |
ad04ef4a DC |
358 | static int |
359 | __attr_leaf_name_remote_count( | |
360 | struct xfs_attr_leafblock *leaf, | |
361 | struct xfs_attr_leaf_entry *e, | |
362 | int i) | |
363 | { | |
364 | return (e->flags & XFS_ATTR_LOCAL) == 0; | |
2bd0ea18 NS |
365 | } |
366 | ||
367 | static int | |
368 | attr_leaf_name_remote_count( | |
ad04ef4a DC |
369 | void *obj, |
370 | int startoff) | |
2bd0ea18 | 371 | { |
ad04ef4a DC |
372 | return attr_leaf_entry_walk(obj, startoff, |
373 | __attr_leaf_name_remote_count); | |
374 | } | |
2bd0ea18 | 375 | |
ad04ef4a DC |
376 | static int |
377 | __attr_leaf_name_remote_name_count( | |
378 | struct xfs_attr_leafblock *leaf, | |
379 | struct xfs_attr_leaf_entry *e, | |
380 | int i) | |
381 | { | |
382 | struct xfs_attr_leaf_name_remote *r; | |
383 | ||
384 | if (e->flags & XFS_ATTR_LOCAL) | |
2bd0ea18 | 385 | return 0; |
ad04ef4a DC |
386 | |
387 | r = xfs_attr3_leaf_name_remote(leaf, i); | |
388 | return r->namelen; | |
2bd0ea18 NS |
389 | } |
390 | ||
391 | static int | |
392 | attr_leaf_name_remote_name_count( | |
393 | void *obj, | |
394 | int startoff) | |
395 | { | |
ad04ef4a DC |
396 | return attr_leaf_entry_walk(obj, startoff, |
397 | __attr_leaf_name_remote_name_count); | |
2bd0ea18 NS |
398 | } |
399 | ||
2bd0ea18 NS |
400 | int |
401 | attr_leaf_name_size( | |
402 | void *obj, | |
403 | int startoff, | |
404 | int idx) | |
405 | { | |
ad04ef4a DC |
406 | struct xfs_attr_leafblock *leaf = obj; |
407 | struct xfs_attr_leaf_entry *e; | |
408 | struct xfs_attr_leaf_name_local *l; | |
409 | struct xfs_attr_leaf_name_remote *r; | |
2bd0ea18 NS |
410 | |
411 | ASSERT(startoff == 0); | |
ad04ef4a DC |
412 | if (be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR_LEAF_MAGIC && |
413 | be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR3_LEAF_MAGIC) | |
2bd0ea18 | 414 | return 0; |
ad04ef4a | 415 | e = &xfs_attr3_leaf_entryp(leaf)[idx]; |
5e656dbb | 416 | if (e->flags & XFS_ATTR_LOCAL) { |
ad04ef4a | 417 | l = xfs_attr3_leaf_name_local(leaf, idx); |
56b2de80 | 418 | return (int)bitize(xfs_attr_leaf_entsize_local(l->namelen, |
5e656dbb | 419 | be16_to_cpu(l->valuelen))); |
2bd0ea18 | 420 | } else { |
ad04ef4a | 421 | r = xfs_attr3_leaf_name_remote(leaf, idx); |
56b2de80 | 422 | return (int)bitize(xfs_attr_leaf_entsize_remote(r->namelen)); |
2bd0ea18 NS |
423 | } |
424 | } | |
425 | ||
2bd0ea18 NS |
426 | static int |
427 | attr_leaf_nvlist_count( | |
428 | void *obj, | |
429 | int startoff) | |
430 | { | |
ad04ef4a DC |
431 | struct xfs_attr_leafblock *leaf = obj; |
432 | ||
433 | ASSERT(startoff == 0); | |
434 | if (be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR_LEAF_MAGIC) | |
435 | return 0; | |
436 | return be16_to_cpu(leaf->hdr.count); | |
437 | } | |
438 | ||
439 | static int | |
440 | attr3_leaf_nvlist_count( | |
441 | void *obj, | |
442 | int startoff) | |
443 | { | |
444 | struct xfs_attr3_leafblock *leaf = obj; | |
2bd0ea18 NS |
445 | |
446 | ASSERT(startoff == 0); | |
ad04ef4a | 447 | if (be16_to_cpu(leaf->hdr.info.hdr.magic) != XFS_ATTR3_LEAF_MAGIC) |
2bd0ea18 | 448 | return 0; |
ad04ef4a | 449 | return be16_to_cpu(leaf->hdr.count); |
2bd0ea18 NS |
450 | } |
451 | ||
2bd0ea18 NS |
452 | static int |
453 | attr_leaf_nvlist_offset( | |
454 | void *obj, | |
455 | int startoff, | |
456 | int idx) | |
457 | { | |
ad04ef4a DC |
458 | struct xfs_attr_leafblock *leaf = obj; |
459 | struct xfs_attr_leaf_entry *e; | |
2bd0ea18 NS |
460 | |
461 | ASSERT(startoff == 0); | |
ad04ef4a | 462 | e = &xfs_attr3_leaf_entryp(leaf)[idx]; |
5e656dbb | 463 | return bitize(be16_to_cpu(e->nameidx)); |
2bd0ea18 NS |
464 | } |
465 | ||
2bd0ea18 NS |
466 | static int |
467 | attr_node_btree_count( | |
468 | void *obj, | |
469 | int startoff) | |
470 | { | |
ad04ef4a | 471 | struct xfs_da_intnode *node = obj; |
2bd0ea18 NS |
472 | |
473 | ASSERT(startoff == 0); /* this is a base structure */ | |
ad04ef4a | 474 | if (be16_to_cpu(node->hdr.info.magic) != XFS_DA_NODE_MAGIC) |
2bd0ea18 | 475 | return 0; |
ad04ef4a | 476 | return be16_to_cpu(node->hdr.__count); |
2bd0ea18 NS |
477 | } |
478 | ||
ad04ef4a DC |
479 | static int |
480 | attr3_node_btree_count( | |
481 | void *obj, | |
482 | int startoff) | |
483 | { | |
484 | struct xfs_da3_intnode *node = obj; | |
485 | ||
486 | ASSERT(startoff == 0); | |
487 | if (be16_to_cpu(node->hdr.info.hdr.magic) != XFS_DA3_NODE_MAGIC) | |
488 | return 0; | |
489 | return be16_to_cpu(node->hdr.__count); | |
490 | } | |
491 | ||
492 | ||
2bd0ea18 NS |
493 | static int |
494 | attr_node_hdr_count( | |
495 | void *obj, | |
496 | int startoff) | |
497 | { | |
ad04ef4a | 498 | struct xfs_da_intnode *node = obj; |
dfc130f3 | 499 | |
2bd0ea18 | 500 | ASSERT(startoff == 0); |
ad04ef4a DC |
501 | return be16_to_cpu(node->hdr.info.magic) == XFS_DA_NODE_MAGIC; |
502 | } | |
503 | ||
504 | static int | |
505 | attr3_node_hdr_count( | |
506 | void *obj, | |
507 | int startoff) | |
508 | { | |
509 | struct xfs_da3_intnode *node = obj; | |
510 | ||
511 | ASSERT(startoff == 0); | |
512 | return be16_to_cpu(node->hdr.info.hdr.magic) == XFS_DA3_NODE_MAGIC; | |
2bd0ea18 NS |
513 | } |
514 | ||
29b90b5b DW |
515 | static int |
516 | attr3_remote_hdr_count( | |
517 | void *obj, | |
518 | int startoff) | |
519 | { | |
520 | struct xfs_attr3_rmt_hdr *node = obj; | |
521 | ||
522 | ASSERT(startoff == 0); | |
523 | return be32_to_cpu(node->rm_magic) == XFS_ATTR3_RMT_MAGIC; | |
524 | } | |
525 | ||
2bd0ea18 NS |
526 | int |
527 | attr_size( | |
528 | void *obj, | |
529 | int startoff, | |
530 | int idx) | |
531 | { | |
532 | return bitize(mp->m_sb.sb_blocksize); | |
533 | } | |
ad04ef4a DC |
534 | |
535 | /* | |
536 | * CRC enabled attribute block field definitions | |
537 | */ | |
538 | const field_t attr3_hfld[] = { | |
539 | { "", FLDT_ATTR3, OI(0), C1, 0, TYP_NONE }, | |
540 | { NULL } | |
541 | }; | |
542 | ||
543 | #define L3OFF(f) bitize(offsetof(struct xfs_attr3_leafblock, f)) | |
544 | #define N3OFF(f) bitize(offsetof(struct xfs_da3_intnode, f)) | |
545 | const field_t attr3_flds[] = { | |
546 | { "hdr", FLDT_ATTR3_LEAF_HDR, OI(L3OFF(hdr)), attr3_leaf_hdr_count, | |
547 | FLD_COUNT, TYP_NONE }, | |
73a423b1 | 548 | { "hdr", FLDT_ATTR3_NODE_HDR, OI(N3OFF(hdr)), attr3_node_hdr_count, |
ad04ef4a | 549 | FLD_COUNT, TYP_NONE }, |
29b90b5b DW |
550 | { "hdr", FLDT_ATTR3_REMOTE_HDR, OI(0), attr3_remote_hdr_count, |
551 | FLD_COUNT, TYP_NONE }, | |
552 | { "data", FLDT_CHARNS, OI(bitize(sizeof(struct xfs_attr3_rmt_hdr))), | |
553 | attr3_remote_data_count, FLD_COUNT, TYP_NONE }, | |
ad04ef4a DC |
554 | { "entries", FLDT_ATTR_LEAF_ENTRY, OI(L3OFF(entries)), |
555 | attr3_leaf_entries_count, FLD_ARRAY|FLD_COUNT, TYP_NONE }, | |
556 | { "btree", FLDT_ATTR_NODE_ENTRY, OI(N3OFF(__btree)), | |
557 | attr3_node_btree_count, FLD_ARRAY|FLD_COUNT, TYP_NONE }, | |
558 | { "nvlist", FLDT_ATTR_LEAF_NAME, attr_leaf_nvlist_offset, | |
559 | attr3_leaf_nvlist_count, FLD_ARRAY|FLD_OFFSET|FLD_COUNT, TYP_NONE }, | |
560 | { NULL } | |
561 | }; | |
562 | ||
563 | #define LH3OFF(f) bitize(offsetof(struct xfs_attr3_leaf_hdr, f)) | |
564 | const field_t attr3_leaf_hdr_flds[] = { | |
73a423b1 | 565 | { "info", FLDT_ATTR3_BLKINFO, OI(LH3OFF(info)), C1, 0, TYP_NONE }, |
ad04ef4a DC |
566 | { "count", FLDT_UINT16D, OI(LH3OFF(count)), C1, 0, TYP_NONE }, |
567 | { "usedbytes", FLDT_UINT16D, OI(LH3OFF(usedbytes)), C1, 0, TYP_NONE }, | |
568 | { "firstused", FLDT_UINT16D, OI(LH3OFF(firstused)), C1, 0, TYP_NONE }, | |
569 | { "holes", FLDT_UINT8D, OI(LH3OFF(holes)), C1, 0, TYP_NONE }, | |
570 | { "pad1", FLDT_UINT8X, OI(LH3OFF(pad1)), C1, FLD_SKIPALL, TYP_NONE }, | |
571 | { "freemap", FLDT_ATTR_LEAF_MAP, OI(LH3OFF(freemap)), | |
572 | CI(XFS_ATTR_LEAF_MAPSIZE), FLD_ARRAY, TYP_NONE }, | |
573 | { NULL } | |
574 | }; | |
575 | ||
73a423b1 DW |
576 | #define B3OFF(f) bitize(offsetof(struct xfs_da3_blkinfo, f)) |
577 | const field_t attr3_blkinfo_flds[] = { | |
578 | { "hdr", FLDT_ATTR_BLKINFO, OI(B3OFF(hdr)), C1, 0, TYP_NONE }, | |
579 | { "crc", FLDT_CRC, OI(B3OFF(crc)), C1, 0, TYP_NONE }, | |
580 | { "bno", FLDT_DFSBNO, OI(B3OFF(blkno)), C1, 0, TYP_BMAPBTD }, | |
581 | { "lsn", FLDT_UINT64X, OI(B3OFF(lsn)), C1, 0, TYP_NONE }, | |
582 | { "uuid", FLDT_UUID, OI(B3OFF(uuid)), C1, 0, TYP_NONE }, | |
583 | { "owner", FLDT_INO, OI(B3OFF(owner)), C1, 0, TYP_NONE }, | |
584 | { NULL } | |
585 | }; | |
586 | ||
587 | #define H3OFF(f) bitize(offsetof(struct xfs_da3_node_hdr, f)) | |
588 | const field_t attr3_node_hdr_flds[] = { | |
589 | { "info", FLDT_ATTR3_BLKINFO, OI(H3OFF(info)), C1, 0, TYP_NONE }, | |
590 | { "count", FLDT_UINT16D, OI(H3OFF(__count)), C1, 0, TYP_NONE }, | |
591 | { "level", FLDT_UINT16D, OI(H3OFF(__level)), C1, 0, TYP_NONE }, | |
31df6ad1 | 592 | { "pad", FLDT_UINT32X, OI(H3OFF(__pad32)), C1, FLD_SKIPALL, TYP_NONE }, |
73a423b1 DW |
593 | { NULL } |
594 | }; | |
595 | ||
29b90b5b DW |
596 | #define RM3OFF(f) bitize(offsetof(struct xfs_attr3_rmt_hdr, rm_ ## f)) |
597 | const struct field attr3_remote_crc_flds[] = { | |
598 | { "magic", FLDT_UINT32X, OI(RM3OFF(magic)), C1, 0, TYP_NONE }, | |
599 | { "offset", FLDT_UINT32D, OI(RM3OFF(offset)), C1, 0, TYP_NONE }, | |
600 | { "bytes", FLDT_UINT32D, OI(RM3OFF(bytes)), C1, 0, TYP_NONE }, | |
601 | { "crc", FLDT_CRC, OI(RM3OFF(crc)), C1, 0, TYP_NONE }, | |
602 | { "uuid", FLDT_UUID, OI(RM3OFF(uuid)), C1, 0, TYP_NONE }, | |
603 | { "owner", FLDT_INO, OI(RM3OFF(owner)), C1, 0, TYP_NONE }, | |
604 | { "bno", FLDT_DFSBNO, OI(RM3OFF(blkno)), C1, 0, TYP_BMAPBTD }, | |
605 | { "lsn", FLDT_UINT64X, OI(RM3OFF(lsn)), C1, 0, TYP_NONE }, | |
606 | { NULL } | |
607 | }; | |
608 | ||
89baf918 DW |
609 | /* Set the CRC. */ |
610 | void | |
611 | xfs_attr3_set_crc( | |
612 | struct xfs_buf *bp) | |
613 | { | |
614 | __be32 magic32; | |
615 | __be16 magic16; | |
616 | ||
617 | magic32 = *(__be32 *)bp->b_addr; | |
618 | magic16 = ((struct xfs_da_blkinfo *)bp->b_addr)->magic; | |
619 | ||
620 | switch (magic16) { | |
621 | case cpu_to_be16(XFS_ATTR3_LEAF_MAGIC): | |
622 | xfs_buf_update_cksum(bp, XFS_ATTR3_LEAF_CRC_OFF); | |
623 | return; | |
624 | case cpu_to_be16(XFS_DA3_NODE_MAGIC): | |
625 | xfs_buf_update_cksum(bp, XFS_DA3_NODE_CRC_OFF); | |
626 | return; | |
627 | default: | |
628 | break; | |
629 | } | |
630 | ||
631 | switch (magic32) { | |
632 | case cpu_to_be32(XFS_ATTR3_RMT_MAGIC): | |
633 | xfs_buf_update_cksum(bp, XFS_ATTR3_RMT_CRC_OFF); | |
634 | return; | |
635 | default: | |
636 | dbprintf(_("Unknown attribute buffer type!\n")); | |
637 | break; | |
638 | } | |
639 | } | |
640 | ||
2847273f DC |
641 | /* |
642 | * Special read verifier for attribute buffers. Detect the magic number | |
643 | * appropriately and set the correct verifier and call it. | |
644 | */ | |
645 | static void | |
646 | xfs_attr3_db_read_verify( | |
647 | struct xfs_buf *bp) | |
648 | { | |
649 | __be32 magic32; | |
650 | __be16 magic16; | |
651 | ||
652 | magic32 = *(__be32 *)bp->b_addr; | |
653 | magic16 = ((struct xfs_da_blkinfo *)bp->b_addr)->magic; | |
654 | ||
655 | switch (magic16) { | |
656 | case cpu_to_be16(XFS_ATTR3_LEAF_MAGIC): | |
657 | bp->b_ops = &xfs_attr3_leaf_buf_ops; | |
658 | goto verify; | |
659 | case cpu_to_be16(XFS_DA3_NODE_MAGIC): | |
660 | bp->b_ops = &xfs_da3_node_buf_ops; | |
661 | goto verify; | |
662 | default: | |
663 | break; | |
664 | } | |
665 | ||
666 | switch (magic32) { | |
667 | case cpu_to_be32(XFS_ATTR3_RMT_MAGIC): | |
668 | bp->b_ops = &xfs_attr3_rmt_buf_ops; | |
669 | break; | |
670 | default: | |
671 | dbprintf(_("Unknown attribute buffer type!\n")); | |
66fc04e0 | 672 | xfs_buf_ioerror(bp, -EFSCORRUPTED); |
2847273f DC |
673 | return; |
674 | } | |
675 | verify: | |
676 | bp->b_ops->verify_read(bp); | |
677 | } | |
678 | ||
679 | static void | |
680 | xfs_attr3_db_write_verify( | |
681 | struct xfs_buf *bp) | |
682 | { | |
683 | dbprintf(_("Writing unknown attribute buffer type!\n")); | |
66fc04e0 | 684 | xfs_buf_ioerror(bp, -EFSCORRUPTED); |
2847273f DC |
685 | } |
686 | ||
687 | const struct xfs_buf_ops xfs_attr3_db_buf_ops = { | |
a3fac935 | 688 | .name = "xfs_attr3", |
2847273f DC |
689 | .verify_read = xfs_attr3_db_read_verify, |
690 | .verify_write = xfs_attr3_db_write_verify, | |
691 | }; |