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Commit | Line | Data |
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2bd0ea18 | 1 | /* |
da23017d NS |
2 | * Copyright (c) 2000-2001,2005 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 | ||
1d7e80ee NS |
19 | #include <xfs/libxfs.h> |
20 | #include <xfs/libxlog.h> | |
2bd0ea18 | 21 | #include "command.h" |
2bd0ea18 NS |
22 | #include "type.h" |
23 | #include "faddr.h" | |
24 | #include "fprint.h" | |
25 | #include "field.h" | |
26 | #include "io.h" | |
27 | #include "sb.h" | |
28 | #include "bit.h" | |
29 | #include "output.h" | |
4ca431fc | 30 | #include "init.h" |
2bd0ea18 NS |
31 | |
32 | static int sb_f(int argc, char **argv); | |
33 | static void sb_help(void); | |
4ca431fc NS |
34 | static int uuid_f(int argc, char **argv); |
35 | static void uuid_help(void); | |
36 | static int label_f(int argc, char **argv); | |
37 | static void label_help(void); | |
38 | static int version_f(int argc, char **argv); | |
39 | static void version_help(void); | |
2bd0ea18 NS |
40 | |
41 | static const cmdinfo_t sb_cmd = | |
42 | { "sb", NULL, sb_f, 0, 1, 1, "[agno]", | |
43 | "set current address to sb header", sb_help }; | |
4ca431fc NS |
44 | static const cmdinfo_t uuid_cmd = |
45 | { "uuid", NULL, uuid_f, 0, 1, 1, "[uuid]", | |
46 | "write/print FS uuid", uuid_help }; | |
47 | static const cmdinfo_t label_cmd = | |
48 | { "label", NULL, label_f, 0, 1, 1, "[label]", | |
49 | "write/print FS label", label_help }; | |
50 | static const cmdinfo_t version_cmd = | |
d2df702b | 51 | { "version", NULL, version_f, 0, -1, 1, "[feature | [vnum fnum]]", |
4ca431fc | 52 | "set feature bit(s) in the sb version field", version_help }; |
2bd0ea18 | 53 | |
4ca431fc NS |
54 | void |
55 | sb_init(void) | |
56 | { | |
57 | add_command(&sb_cmd); | |
58 | add_command(&uuid_cmd); | |
59 | add_command(&label_cmd); | |
60 | add_command(&version_cmd); | |
61 | } | |
2bd0ea18 NS |
62 | |
63 | #define OFF(f) bitize(offsetof(xfs_sb_t, sb_ ## f)) | |
64 | #define SZC(f) szcount(xfs_sb_t, sb_ ## f) | |
65 | const field_t sb_flds[] = { | |
66 | { "magicnum", FLDT_UINT32X, OI(OFF(magicnum)), C1, 0, TYP_NONE }, | |
67 | { "blocksize", FLDT_UINT32D, OI(OFF(blocksize)), C1, 0, TYP_NONE }, | |
68 | { "dblocks", FLDT_DRFSBNO, OI(OFF(dblocks)), C1, 0, TYP_NONE }, | |
69 | { "rblocks", FLDT_DRFSBNO, OI(OFF(rblocks)), C1, 0, TYP_NONE }, | |
70 | { "rextents", FLDT_DRTBNO, OI(OFF(rextents)), C1, 0, TYP_NONE }, | |
71 | { "uuid", FLDT_UUID, OI(OFF(uuid)), C1, 0, TYP_NONE }, | |
72 | { "logstart", FLDT_DFSBNO, OI(OFF(logstart)), C1, 0, TYP_LOG }, | |
73 | { "rootino", FLDT_INO, OI(OFF(rootino)), C1, 0, TYP_INODE }, | |
74 | { "rbmino", FLDT_INO, OI(OFF(rbmino)), C1, 0, TYP_INODE }, | |
75 | { "rsumino", FLDT_INO, OI(OFF(rsumino)), C1, 0, TYP_INODE }, | |
76 | { "rextsize", FLDT_AGBLOCK, OI(OFF(rextsize)), C1, 0, TYP_NONE }, | |
77 | { "agblocks", FLDT_AGBLOCK, OI(OFF(agblocks)), C1, 0, TYP_NONE }, | |
78 | { "agcount", FLDT_AGNUMBER, OI(OFF(agcount)), C1, 0, TYP_NONE }, | |
79 | { "rbmblocks", FLDT_EXTLEN, OI(OFF(rbmblocks)), C1, 0, TYP_NONE }, | |
80 | { "logblocks", FLDT_EXTLEN, OI(OFF(logblocks)), C1, 0, TYP_NONE }, | |
81 | { "versionnum", FLDT_UINT16X, OI(OFF(versionnum)), C1, 0, TYP_NONE }, | |
82 | { "sectsize", FLDT_UINT16D, OI(OFF(sectsize)), C1, 0, TYP_NONE }, | |
83 | { "inodesize", FLDT_UINT16D, OI(OFF(inodesize)), C1, 0, TYP_NONE }, | |
84 | { "inopblock", FLDT_UINT16D, OI(OFF(inopblock)), C1, 0, TYP_NONE }, | |
85 | { "fname", FLDT_CHARNS, OI(OFF(fname)), CI(SZC(fname)), 0, TYP_NONE }, | |
86 | { "blocklog", FLDT_UINT8D, OI(OFF(blocklog)), C1, 0, TYP_NONE }, | |
87 | { "sectlog", FLDT_UINT8D, OI(OFF(sectlog)), C1, 0, TYP_NONE }, | |
88 | { "inodelog", FLDT_UINT8D, OI(OFF(inodelog)), C1, 0, TYP_NONE }, | |
89 | { "inopblog", FLDT_UINT8D, OI(OFF(inopblog)), C1, 0, TYP_NONE }, | |
90 | { "agblklog", FLDT_UINT8D, OI(OFF(agblklog)), C1, 0, TYP_NONE }, | |
91 | { "rextslog", FLDT_UINT8D, OI(OFF(rextslog)), C1, 0, TYP_NONE }, | |
92 | { "inprogress", FLDT_UINT8D, OI(OFF(inprogress)), C1, 0, TYP_NONE }, | |
93 | { "imax_pct", FLDT_UINT8D, OI(OFF(imax_pct)), C1, 0, TYP_NONE }, | |
94 | { "icount", FLDT_UINT64D, OI(OFF(icount)), C1, 0, TYP_NONE }, | |
95 | { "ifree", FLDT_UINT64D, OI(OFF(ifree)), C1, 0, TYP_NONE }, | |
96 | { "fdblocks", FLDT_UINT64D, OI(OFF(fdblocks)), C1, 0, TYP_NONE }, | |
97 | { "frextents", FLDT_UINT64D, OI(OFF(frextents)), C1, 0, TYP_NONE }, | |
98 | { "uquotino", FLDT_INO, OI(OFF(uquotino)), C1, 0, TYP_INODE }, | |
b36eef04 | 99 | { "gquotino", FLDT_INO, OI(OFF(gquotino)), C1, 0, TYP_INODE }, |
2bd0ea18 NS |
100 | { "qflags", FLDT_UINT16X, OI(OFF(qflags)), C1, 0, TYP_NONE }, |
101 | { "flags", FLDT_UINT8X, OI(OFF(flags)), C1, 0, TYP_NONE }, | |
102 | { "shared_vn", FLDT_UINT8D, OI(OFF(shared_vn)), C1, 0, TYP_NONE }, | |
103 | { "inoalignmt", FLDT_EXTLEN, OI(OFF(inoalignmt)), C1, 0, TYP_NONE }, | |
104 | { "unit", FLDT_UINT32D, OI(OFF(unit)), C1, 0, TYP_NONE }, | |
105 | { "width", FLDT_UINT32D, OI(OFF(width)), C1, 0, TYP_NONE }, | |
106 | { "dirblklog", FLDT_UINT8D, OI(OFF(dirblklog)), C1, 0, TYP_NONE }, | |
9440d84d NS |
107 | { "logsectlog", FLDT_UINT8D, OI(OFF(logsectlog)), C1, 0, TYP_NONE }, |
108 | { "logsectsize", FLDT_UINT16D, OI(OFF(logsectsize)), C1, 0, TYP_NONE }, | |
73bf5988 | 109 | { "logsunit", FLDT_UINT32D, OI(OFF(logsunit)), C1, 0, TYP_NONE }, |
465e76a9 | 110 | { "features2", FLDT_UINT32X, OI(OFF(features2)), C1, 0, TYP_NONE }, |
2bd0ea18 NS |
111 | { NULL } |
112 | }; | |
113 | ||
4ca431fc NS |
114 | const field_t sb_hfld[] = { |
115 | { "", FLDT_SB, OI(0), C1, 0, TYP_NONE }, | |
116 | { NULL } | |
117 | }; | |
118 | ||
2bd0ea18 NS |
119 | static void |
120 | sb_help(void) | |
121 | { | |
122 | dbprintf( | |
123 | "\n" | |
124 | " set allocation group superblock\n" | |
125 | "\n" | |
126 | " Example:\n" | |
127 | "\n" | |
128 | " 'sb 7' - set location to 7th allocation group superblock, set type to 'sb'\n" | |
129 | "\n" | |
9440d84d NS |
130 | " Located in the first sector of each allocation group, the superblock\n" |
131 | " contains the base information for the filesystem.\n" | |
2bd0ea18 NS |
132 | " The superblock in allocation group 0 is the primary. The copies in the\n" |
133 | " remaining allocation groups only serve as backup for filesystem recovery.\n" | |
134 | " The icount/ifree/fdblocks/frextents are only updated in superblock 0.\n" | |
135 | "\n" | |
136 | ); | |
137 | } | |
138 | ||
139 | static int | |
140 | sb_f( | |
141 | int argc, | |
142 | char **argv) | |
143 | { | |
144 | xfs_agnumber_t agno; | |
145 | char *p; | |
146 | ||
147 | if (argc > 1) { | |
148 | agno = (xfs_agnumber_t)strtoul(argv[1], &p, 0); | |
149 | if (*p != '\0' || agno >= mp->m_sb.sb_agcount) { | |
150 | dbprintf("bad allocation group number %s\n", argv[1]); | |
151 | return 0; | |
152 | } | |
153 | cur_agno = agno; | |
154 | } else if (cur_agno == NULLAGNUMBER) | |
155 | cur_agno = 0; | |
156 | ASSERT(typtab[TYP_SB].typnm == TYP_SB); | |
9440d84d NS |
157 | set_cur(&typtab[TYP_SB], |
158 | XFS_AG_DADDR(mp, cur_agno, XFS_SB_DADDR), | |
159 | XFS_FSS_TO_BB(mp, 1), DB_RING_ADD, NULL); | |
2bd0ea18 NS |
160 | return 0; |
161 | } | |
162 | ||
2bd0ea18 NS |
163 | /*ARGSUSED*/ |
164 | int | |
165 | sb_size( | |
166 | void *obj, | |
167 | int startoff, | |
168 | int idx) | |
169 | { | |
170 | return bitize(mp->m_sb.sb_sectsize); | |
171 | } | |
4ca431fc NS |
172 | |
173 | static int | |
174 | get_sb(xfs_agnumber_t agno, xfs_sb_t *sb) | |
175 | { | |
176 | push_cur(); | |
177 | set_cur(&typtab[TYP_SB], | |
178 | XFS_AG_DADDR(mp, agno, XFS_SB_DADDR), | |
179 | XFS_FSS_TO_BB(mp, 1), DB_RING_IGN, NULL); | |
dfc130f3 | 180 | |
4ca431fc NS |
181 | if (!iocur_top->data) { |
182 | dbprintf("can't read superblock for AG %u\n", agno); | |
183 | pop_cur(); | |
184 | return 0; | |
185 | } | |
186 | ||
46eca962 | 187 | libxfs_xlate_sb(iocur_top->data, sb, 1, XFS_SB_ALL_BITS); |
dfc130f3 | 188 | |
4ca431fc NS |
189 | if (sb->sb_magicnum != XFS_SB_MAGIC) { |
190 | dbprintf("bad sb magic # %#x in AG %u\n", | |
191 | sb->sb_magicnum, agno); | |
dfc130f3 | 192 | return 0; |
4ca431fc NS |
193 | } |
194 | if (!XFS_SB_GOOD_VERSION(sb)) { | |
195 | dbprintf("bad sb version # %#x in AG %u\n", | |
196 | sb->sb_versionnum, agno); | |
dfc130f3 | 197 | return 0; |
4ca431fc NS |
198 | } |
199 | if (agno == 0 && sb->sb_inprogress != 0) { | |
200 | dbprintf("mkfs not completed successfully\n"); | |
dfc130f3 | 201 | return 0; |
4ca431fc NS |
202 | } |
203 | return 1; | |
204 | } | |
205 | ||
206 | /* workaround craziness in the xlog routines */ | |
207 | int xlog_recover_do_trans(xlog_t *log, xlog_recover_t *t, int p) { return 0; } | |
208 | ||
add013da NS |
209 | int |
210 | sb_logcheck(void) | |
4ca431fc NS |
211 | { |
212 | xlog_t log; | |
213 | xfs_daddr_t head_blk, tail_blk; | |
214 | ||
215 | if (mp->m_sb.sb_logstart) { | |
216 | if (x.logdev && x.logdev != x.ddev) { | |
217 | dbprintf("aborting - external log specified for FS " | |
218 | "with an internal log\n"); | |
219 | return 0; | |
220 | } | |
221 | } else { | |
222 | if (!x.logdev || (x.logdev == x.ddev)) { | |
223 | dbprintf("aborting - no external log specified for FS " | |
224 | "with an external log\n"); | |
225 | return 0; | |
226 | } | |
227 | } | |
228 | ||
229 | memset(&log, 0, sizeof(log)); | |
230 | if (!x.logdev) | |
231 | x.logdev = x.ddev; | |
232 | x.logBBsize = XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); | |
233 | x.logBBstart = XFS_FSB_TO_DADDR(mp, mp->m_sb.sb_logstart); | |
234 | log.l_dev = (mp->m_sb.sb_logstart == 0) ? x.logdev : x.ddev; | |
235 | log.l_logsize = BBTOB(log.l_logBBsize); | |
236 | log.l_logBBsize = x.logBBsize; | |
237 | log.l_logBBstart = x.logBBstart; | |
238 | log.l_mp = mp; | |
239 | ||
240 | if (xlog_find_tail(&log, &head_blk, &tail_blk, 0)) { | |
241 | dbprintf("ERROR: cannot find log head/tail, run xfs_repair\n"); | |
242 | return 0; | |
243 | } | |
244 | if (head_blk != tail_blk) { | |
245 | dbprintf( | |
246 | "ERROR: The filesystem has valuable metadata changes in a log which needs to\n" | |
247 | "be replayed. Mount the filesystem to replay the log, and unmount it before\n" | |
248 | "re-running %s. If you are unable to mount the filesystem, then use\n" | |
249 | "the xfs_repair -L option to destroy the log and attempt a repair.\n" | |
250 | "Note that destroying the log may cause corruption -- please attempt a mount\n" | |
251 | "of the filesystem before doing this.\n", progname); | |
252 | return 0; | |
253 | } | |
add013da NS |
254 | return 1; |
255 | } | |
256 | ||
257 | static int | |
258 | sb_logzero(uuid_t *uuidp) | |
259 | { | |
260 | if (!sb_logcheck()) | |
261 | return 0; | |
4ca431fc NS |
262 | |
263 | dbprintf("Clearing log and setting UUID\n"); | |
264 | ||
add013da NS |
265 | if (libxfs_log_clear( |
266 | (mp->m_sb.sb_logstart == 0) ? x.logdev : x.ddev, | |
4ca431fc NS |
267 | XFS_FSB_TO_DADDR(mp, mp->m_sb.sb_logstart), |
268 | (xfs_extlen_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks), | |
269 | uuidp, | |
270 | XFS_SB_VERSION_HASLOGV2(&mp->m_sb) ? 2 : 1, | |
271 | mp->m_sb.sb_logsunit, XLOG_FMT)) { | |
272 | dbprintf("ERROR: cannot clear the log\n"); | |
273 | return 0; | |
274 | } | |
275 | return 1; | |
276 | } | |
277 | ||
278 | ||
279 | static void | |
280 | uuid_help(void) | |
281 | { | |
282 | dbprintf( | |
283 | "\n" | |
284 | " write/print FS uuid\n" | |
285 | "\n" | |
286 | " Example:\n" | |
287 | "\n" | |
288 | " 'uuid' - print UUID\n" | |
289 | " 'uuid 01234567-0123-0123-0123-0123456789ab' - write UUID\n" | |
290 | " 'uuid generate' - generate and write\n" | |
291 | " 'uuid rewrite' - copy UUID from SB 0\n" | |
292 | "\n" | |
293 | "The print function checks the UUID in each SB and will warn if the UUIDs\n" | |
294 | "differ between AGs (the log is not checked). The write commands will\n" | |
295 | "set the uuid in all AGs to either a specified value, a newly generated\n" | |
296 | "value or the value found in the first superblock (SB 0) respectively.\n" | |
297 | "As a side effect of writing the UUID, the log is cleared (which is fine\n" | |
298 | "on a CLEANLY unmounted FS).\n" | |
299 | "\n" | |
300 | ); | |
301 | } | |
302 | ||
303 | static uuid_t * | |
304 | do_uuid(xfs_agnumber_t agno, uuid_t *uuid) | |
305 | { | |
306 | xfs_sb_t tsb; | |
307 | static uuid_t uu; | |
308 | ||
309 | if (!get_sb(agno, &tsb)) | |
310 | return NULL; | |
311 | ||
312 | if (!uuid) { /* get uuid */ | |
313 | memcpy(&uu, &tsb.sb_uuid, sizeof(uuid_t)); | |
314 | pop_cur(); | |
315 | return &uu; | |
316 | } | |
317 | /* set uuid */ | |
318 | memcpy(&tsb.sb_uuid, uuid, sizeof(uuid_t)); | |
46eca962 | 319 | libxfs_xlate_sb(iocur_top->data, &tsb, -1, XFS_SB_UUID); |
4ca431fc NS |
320 | write_cur(); |
321 | return uuid; | |
322 | } | |
323 | ||
324 | static int | |
325 | uuid_f( | |
326 | int argc, | |
327 | char **argv) | |
328 | { | |
329 | char bp[40]; | |
330 | xfs_agnumber_t agno; | |
331 | uuid_t uu; | |
332 | uuid_t *uup = NULL; | |
333 | ||
334 | if (argc != 1 && argc != 2) { | |
335 | dbprintf("invalid parameters\n"); | |
336 | return 0; | |
337 | } | |
338 | ||
339 | if (argc == 2) { /* WRITE UUID */ | |
340 | ||
341 | if ((x.isreadonly & LIBXFS_ISREADONLY) || !expert_mode) { | |
342 | dbprintf("%s: not in expert mode, writing disabled\n", | |
343 | progname); | |
344 | return 0; | |
345 | } | |
346 | ||
347 | if (!strcasecmp(argv[1], "generate")) { | |
4d32d744 | 348 | platform_uuid_generate(&uu); |
4ca431fc | 349 | } else if (!strcasecmp(argv[1], "nil")) { |
4d32d744 | 350 | platform_uuid_clear(&uu); |
4ca431fc NS |
351 | } else if (!strcasecmp(argv[1], "rewrite")) { |
352 | uup = do_uuid(0, NULL); | |
353 | if (!uup) { | |
354 | dbprintf("failed to read UUID from AG 0\n"); | |
355 | return 0; | |
356 | } | |
6699422d | 357 | memcpy(&uu, uup, sizeof(uuid_t)); |
4d32d744 | 358 | platform_uuid_unparse(&uu, bp); |
4ca431fc NS |
359 | dbprintf("old UUID = %s\n", bp); |
360 | } else { | |
4d32d744 | 361 | if (platform_uuid_parse(argv[1], &uu)) { |
4ca431fc NS |
362 | dbprintf("invalid UUID\n"); |
363 | return 0; | |
364 | } | |
365 | } | |
366 | ||
367 | /* clear the log (setting uuid) if its not dirty */ | |
add013da | 368 | if (!sb_logzero(&uu)) |
4ca431fc NS |
369 | return 0; |
370 | ||
371 | dbprintf("writing all SBs\n"); | |
372 | for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) | |
373 | if (!do_uuid(agno, &uu)) { | |
374 | dbprintf("failed to set UUID in AG %d\n", agno); | |
375 | break; | |
376 | } | |
377 | ||
4d32d744 | 378 | platform_uuid_unparse(&uu, bp); |
4ca431fc NS |
379 | dbprintf("new UUID = %s\n", bp); |
380 | return 0; | |
381 | ||
382 | } else { /* READ+CHECK UUID */ | |
dfc130f3 | 383 | |
4ca431fc NS |
384 | for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) { |
385 | uup = do_uuid(agno, NULL); | |
386 | if (!uup) { | |
387 | dbprintf("failed to read UUID from AG %d\n", | |
388 | agno); | |
389 | return 0; | |
390 | } | |
391 | if (agno) { | |
392 | if (memcmp(&uu, uup, sizeof(uuid_t))) { | |
393 | dbprintf("warning: UUID in AG %d " | |
394 | "differs to the primary SB\n", | |
395 | agno); | |
396 | break; | |
397 | } | |
398 | } else { | |
6699422d | 399 | memcpy(&uu, uup, sizeof(uuid_t)); |
4ca431fc NS |
400 | } |
401 | } | |
402 | if (mp->m_sb.sb_logstart) { | |
403 | if (x.logdev && x.logdev != x.ddev) | |
404 | dbprintf("warning - external log specified " | |
405 | "for FS with an internal log\n"); | |
406 | } else if (!x.logdev || (x.logdev == x.ddev)) { | |
407 | dbprintf("warning - no external log specified " | |
408 | "for FS with an external log\n"); | |
409 | } | |
410 | ||
4d32d744 | 411 | platform_uuid_unparse(&uu, bp); |
4ca431fc NS |
412 | dbprintf("UUID = %s\n", bp); |
413 | } | |
414 | ||
415 | return 0; | |
416 | } | |
417 | ||
418 | ||
419 | static void | |
420 | label_help(void) | |
421 | { | |
422 | dbprintf( | |
423 | "\n" | |
424 | " write/print FS label\n" | |
425 | "\n" | |
426 | " Example:\n" | |
427 | "\n" | |
428 | " 'label' - print label\n" | |
429 | " 'label 123456789012' - write label\n" | |
430 | " 'label --' - write an empty label\n" | |
431 | "\n" | |
432 | "The print function checks the label in each SB and will warn if the labels\n" | |
433 | "differ between AGs. The write commands will set the label in all AGs to the\n" | |
434 | "specified value. The maximum length of a label is 12 characters - use of a\n" | |
435 | "longer label will result in truncation and a warning will be issued.\n" | |
436 | "\n" | |
437 | ); | |
438 | } | |
439 | ||
440 | static char * | |
441 | do_label(xfs_agnumber_t agno, char *label) | |
442 | { | |
443 | size_t len; | |
444 | xfs_sb_t tsb; | |
dfc130f3 | 445 | static char lbl[sizeof(tsb.sb_fname) + 1]; |
4ca431fc NS |
446 | |
447 | if (!get_sb(agno, &tsb)) | |
448 | return NULL; | |
449 | ||
450 | memset(&lbl[0], 0, sizeof(lbl)); | |
451 | ||
452 | if (!label) { /* get label */ | |
453 | pop_cur(); | |
454 | memcpy(&lbl[0], &tsb.sb_fname, sizeof(tsb.sb_fname)); | |
455 | return &lbl[0]; | |
456 | } | |
457 | /* set label */ | |
458 | if ((len = strlen(label)) > sizeof(tsb.sb_fname)) { | |
459 | if (agno == 0) | |
460 | dbprintf("%s: truncating label length from %d to %d\n", | |
461 | progname, (int)len, (int)sizeof(tsb.sb_fname)); | |
462 | len = sizeof(tsb.sb_fname); | |
463 | } | |
464 | if ( len == 2 && | |
465 | (strcmp(label, "\"\"") == 0 || | |
466 | strcmp(label, "''") == 0 || | |
467 | strcmp(label, "--") == 0) ) | |
468 | label[0] = label[1] = '\0'; | |
469 | memset(&tsb.sb_fname, 0, sizeof(tsb.sb_fname)); | |
470 | memcpy(&tsb.sb_fname, label, len); | |
471 | memcpy(&lbl[0], &tsb.sb_fname, sizeof(tsb.sb_fname)); | |
46eca962 | 472 | libxfs_xlate_sb(iocur_top->data, &tsb, -1, XFS_SB_FNAME); |
4ca431fc NS |
473 | write_cur(); |
474 | return &lbl[0]; | |
475 | } | |
476 | ||
477 | static int | |
478 | label_f( | |
479 | int argc, | |
480 | char **argv) | |
481 | { | |
482 | char *p = NULL; | |
483 | xfs_sb_t sb; | |
484 | xfs_agnumber_t ag; | |
485 | ||
486 | if (argc != 1 && argc != 2) { | |
487 | dbprintf("invalid parameters\n"); | |
488 | return 0; | |
489 | } | |
490 | ||
491 | if (argc == 2) { /* WRITE LABEL */ | |
492 | ||
493 | if ((x.isreadonly & LIBXFS_ISREADONLY) || !expert_mode) { | |
494 | dbprintf("%s: not in expert mode, writing disabled\n", | |
495 | progname); | |
496 | return 0; | |
497 | } | |
498 | ||
499 | dbprintf("writing all SBs\n"); | |
500 | for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) | |
501 | if ((p = do_label(ag, argv[1])) == NULL) { | |
502 | dbprintf("failed to set label in AG %d\n", ag); | |
503 | break; | |
504 | } | |
505 | dbprintf("new label = \"%s\"\n", p); | |
506 | ||
507 | } else { /* READ LABEL */ | |
508 | ||
509 | for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) { | |
510 | p = do_label(ag, NULL); | |
511 | if (!p) { | |
512 | dbprintf("failed to read label in AG %d\n", ag); | |
513 | return 0; | |
514 | } | |
515 | if (!ag) | |
516 | memcpy(&sb.sb_fname, p, sizeof(sb.sb_fname)); | |
517 | else if (memcmp(&sb.sb_fname, p, sizeof(sb.sb_fname))) | |
518 | dbprintf("warning: AG %d label differs\n", ag); | |
519 | } | |
520 | dbprintf("label = \"%s\"\n", p); | |
521 | } | |
522 | return 0; | |
523 | } | |
524 | ||
525 | ||
526 | static void | |
527 | version_help(void) | |
528 | { | |
529 | dbprintf( | |
530 | "\n" | |
531 | " set/print feature bits in sb version\n" | |
532 | "\n" | |
533 | " Example:\n" | |
534 | "\n" | |
535 | " 'version' - print current feature bits\n" | |
536 | " 'version extflg' - enable unwritten extents\n" | |
70476e54 NS |
537 | " 'version attr1' - enable v1 inline extended attributes\n" |
538 | " 'version attr2' - enable v2 inline extended attributes\n" | |
66997473 | 539 | " 'version log2' - enable v2 log format\n" |
4ca431fc NS |
540 | "\n" |
541 | "The version function prints currently enabled features for a filesystem\n" | |
542 | "according to its the version field of the primary superblock.\n" | |
543 | "It can also be used to enable selected features, such as support for\n" | |
66997473 | 544 | "unwritten extents. The upated version is written into all AGs.\n" |
4ca431fc NS |
545 | "\n" |
546 | ); | |
547 | } | |
548 | ||
549 | static int | |
70476e54 | 550 | do_version(xfs_agnumber_t agno, __uint16_t version, __uint32_t features) |
4ca431fc NS |
551 | { |
552 | xfs_sb_t tsb; | |
66997473 | 553 | __int64_t fields = 0; |
4ca431fc NS |
554 | |
555 | if (!get_sb(agno, &tsb)) | |
556 | return 0; | |
557 | ||
66997473 NS |
558 | if ((version & XFS_SB_VERSION_LOGV2BIT) && |
559 | !XFS_SB_VERSION_HASLOGV2(&tsb)) { | |
560 | tsb.sb_logsunit = 1; | |
561 | fields |= (1LL << XFS_SBS_LOGSUNIT); | |
562 | } | |
563 | ||
70476e54 NS |
564 | tsb.sb_versionnum = version; |
565 | tsb.sb_features2 = features; | |
66997473 NS |
566 | fields |= XFS_SB_VERSIONNUM | XFS_SB_FEATURES2; |
567 | libxfs_xlate_sb(iocur_top->data, &tsb, -1, fields); | |
4ca431fc NS |
568 | write_cur(); |
569 | return 1; | |
570 | } | |
571 | ||
572 | static char * | |
573 | version_string( | |
574 | xfs_sb_t *sbp) | |
575 | { | |
576 | static char s[1024]; | |
577 | ||
578 | if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_1) | |
579 | strcpy(s, "V1"); | |
580 | else if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_2) | |
581 | strcpy(s, "V2"); | |
582 | else if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_3) | |
583 | strcpy(s, "V3"); | |
584 | else if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) | |
585 | strcpy(s, "V4"); | |
586 | ||
587 | if (XFS_SB_VERSION_HASATTR(sbp)) | |
588 | strcat(s, ",ATTR"); | |
589 | if (XFS_SB_VERSION_HASNLINK(sbp)) | |
590 | strcat(s, ",NLINK"); | |
591 | if (XFS_SB_VERSION_HASQUOTA(sbp)) | |
592 | strcat(s, ",QUOTA"); | |
593 | if (XFS_SB_VERSION_HASALIGN(sbp)) | |
594 | strcat(s, ",ALIGN"); | |
595 | if (XFS_SB_VERSION_HASDALIGN(sbp)) | |
596 | strcat(s, ",DALIGN"); | |
597 | if (XFS_SB_VERSION_HASSHARED(sbp)) | |
598 | strcat(s, ",SHARED"); | |
599 | if (XFS_SB_VERSION_HASDIRV2(sbp)) | |
600 | strcat(s, ",DIRV2"); | |
601 | if (XFS_SB_VERSION_HASLOGV2(sbp)) | |
602 | strcat(s, ",LOGV2"); | |
603 | if (XFS_SB_VERSION_HASEXTFLGBIT(sbp)) | |
604 | strcat(s, ",EXTFLG"); | |
605 | if (XFS_SB_VERSION_HASSECTOR(sbp)) | |
606 | strcat(s, ",SECTOR"); | |
ca86e759 NS |
607 | if (XFS_SB_VERSION_HASMOREBITS(sbp)) |
608 | strcat(s, ",MOREBITS"); | |
609 | if (XFS_SB_VERSION_HASATTR2(sbp)) | |
610 | strcat(s, ",ATTR2"); | |
cdded3d8 DC |
611 | if (XFS_SB_VERSION_LAZYSBCOUNT(sbp)) |
612 | strcat(s, ",LAZYSBCOUNT"); | |
4ca431fc NS |
613 | return s; |
614 | } | |
615 | ||
616 | static int | |
617 | version_f( | |
618 | int argc, | |
619 | char **argv) | |
620 | { | |
621 | __uint16_t version = 0; | |
70476e54 | 622 | __uint32_t features = 0; |
4ca431fc NS |
623 | xfs_agnumber_t ag; |
624 | ||
625 | if (argc == 2) { /* WRITE VERSION */ | |
626 | ||
627 | if ((x.isreadonly & LIBXFS_ISREADONLY) || !expert_mode) { | |
628 | dbprintf("%s: not in expert mode, writing disabled\n", | |
629 | progname); | |
630 | return 0; | |
631 | } | |
632 | ||
633 | /* Logic here derived from the IRIX xfs_chver(1M) script. */ | |
634 | if (!strcasecmp(argv[1], "extflg")) { | |
635 | switch (XFS_SB_VERSION_NUM(&mp->m_sb)) { | |
636 | case XFS_SB_VERSION_1: | |
637 | version = 0x0004 | XFS_SB_VERSION_EXTFLGBIT; | |
638 | break; | |
639 | case XFS_SB_VERSION_2: | |
640 | version = 0x0014 | XFS_SB_VERSION_EXTFLGBIT; | |
641 | break; | |
642 | case XFS_SB_VERSION_3: | |
643 | version = 0x0034 | XFS_SB_VERSION_EXTFLGBIT; | |
644 | break; | |
645 | case XFS_SB_VERSION_4: | |
646 | if (XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) | |
647 | dbprintf("unwritten extents flag" | |
648 | " is already enabled\n"); | |
649 | else | |
650 | version = mp->m_sb.sb_versionnum | | |
651 | XFS_SB_VERSION_EXTFLGBIT; | |
652 | break; | |
653 | } | |
66997473 NS |
654 | } else if (!strcasecmp(argv[1], "log2")) { |
655 | switch (XFS_SB_VERSION_NUM(&mp->m_sb)) { | |
656 | case XFS_SB_VERSION_1: | |
657 | version = 0x0004 | XFS_SB_VERSION_LOGV2BIT; | |
658 | break; | |
659 | case XFS_SB_VERSION_2: | |
660 | version = 0x0014 | XFS_SB_VERSION_LOGV2BIT; | |
661 | break; | |
662 | case XFS_SB_VERSION_3: | |
663 | version = 0x0034 | XFS_SB_VERSION_LOGV2BIT; | |
664 | break; | |
665 | case XFS_SB_VERSION_4: | |
666 | if (XFS_SB_VERSION_HASLOGV2(&mp->m_sb)) | |
667 | dbprintf("version 2 log format" | |
668 | " is already in use\n"); | |
669 | else | |
670 | version = mp->m_sb.sb_versionnum | | |
671 | XFS_SB_VERSION_LOGV2BIT; | |
672 | break; | |
673 | } | |
70476e54 NS |
674 | } else if (!strcasecmp(argv[1], "attr1")) { |
675 | if (XFS_SB_VERSION_HASATTR2(&mp->m_sb)) { | |
676 | if (!(mp->m_sb.sb_features2 &= | |
677 | ~XFS_SB_VERSION2_ATTR2BIT)) | |
678 | mp->m_sb.sb_versionnum &= | |
679 | ~XFS_SB_VERSION_MOREBITSBIT; | |
680 | } | |
681 | XFS_SB_VERSION_ADDATTR(&mp->m_sb); | |
682 | version = mp->m_sb.sb_versionnum; | |
683 | features = mp->m_sb.sb_features2; | |
684 | } else if (!strcasecmp(argv[1], "attr2")) { | |
685 | XFS_SB_VERSION_ADDATTR(&mp->m_sb); | |
686 | XFS_SB_VERSION_ADDATTR2(&mp->m_sb); | |
687 | version = mp->m_sb.sb_versionnum; | |
688 | features = mp->m_sb.sb_features2; | |
4ca431fc NS |
689 | } else { |
690 | dbprintf("%s: invalid version change command \"%s\"\n", | |
691 | progname, argv[1]); | |
692 | return 0; | |
693 | } | |
694 | ||
695 | if (version) { | |
696 | dbprintf("writing all SBs\n"); | |
697 | for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) | |
70476e54 | 698 | if (!do_version(ag, version, features)) { |
4ca431fc NS |
699 | dbprintf("failed to set versionnum " |
700 | "in AG %d\n", ag); | |
701 | break; | |
702 | } | |
703 | mp->m_sb.sb_versionnum = version; | |
70476e54 | 704 | mp->m_sb.sb_features2 = features; |
4ca431fc NS |
705 | } |
706 | } | |
d2df702b NS |
707 | |
708 | if (argc == 3) { /* VERSIONNUM + FEATURES2 */ | |
709 | char *sp; | |
710 | ||
711 | version = mp->m_sb.sb_versionnum; | |
712 | features = mp->m_sb.sb_features2; | |
713 | mp->m_sb.sb_versionnum = strtoul(argv[1], &sp, 0); | |
714 | mp->m_sb.sb_features2 = strtoul(argv[2], &sp, 0); | |
715 | } | |
716 | ||
ca86e759 NS |
717 | dbprintf("versionnum [0x%x+0x%x] = %s\n", mp->m_sb.sb_versionnum, |
718 | mp->m_sb.sb_features2, version_string(&mp->m_sb)); | |
d2df702b NS |
719 | |
720 | if (argc == 3) { /* now reset... */ | |
721 | mp->m_sb.sb_versionnum = version; | |
722 | mp->m_sb.sb_features2 = features; | |
723 | return 0; | |
724 | } | |
725 | ||
4ca431fc NS |
726 | return 0; |
727 | } |