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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 | ||
6b803e5a CH |
19 | #include "libxfs.h" |
20 | #include "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 | 31 | |
9c4e12fb ES |
32 | #define uuid_equal(s,d) (platform_uuid_compare((s),(d)) == 0) |
33 | ||
2bd0ea18 NS |
34 | static int sb_f(int argc, char **argv); |
35 | static void sb_help(void); | |
4ca431fc NS |
36 | static int uuid_f(int argc, char **argv); |
37 | static void uuid_help(void); | |
38 | static int label_f(int argc, char **argv); | |
39 | static void label_help(void); | |
40 | static int version_f(int argc, char **argv); | |
41 | static void version_help(void); | |
2bd0ea18 NS |
42 | |
43 | static const cmdinfo_t sb_cmd = | |
9ee7055c AM |
44 | { "sb", NULL, sb_f, 0, 1, 1, N_("[agno]"), |
45 | N_("set current address to sb header"), sb_help }; | |
4ca431fc | 46 | static const cmdinfo_t uuid_cmd = |
9ee7055c AM |
47 | { "uuid", NULL, uuid_f, 0, 1, 1, N_("[uuid]"), |
48 | N_("write/print FS uuid"), uuid_help }; | |
4ca431fc | 49 | static const cmdinfo_t label_cmd = |
9ee7055c AM |
50 | { "label", NULL, label_f, 0, 1, 1, N_("[label]"), |
51 | N_("write/print FS label"), label_help }; | |
4ca431fc | 52 | static const cmdinfo_t version_cmd = |
9ee7055c AM |
53 | { "version", NULL, version_f, 0, -1, 1, N_("[feature | [vnum fnum]]"), |
54 | N_("set feature bit(s) in the sb version field"), version_help }; | |
2bd0ea18 | 55 | |
4ca431fc NS |
56 | void |
57 | sb_init(void) | |
58 | { | |
59 | add_command(&sb_cmd); | |
60 | add_command(&uuid_cmd); | |
61 | add_command(&label_cmd); | |
62 | add_command(&version_cmd); | |
63 | } | |
2bd0ea18 NS |
64 | |
65 | #define OFF(f) bitize(offsetof(xfs_sb_t, sb_ ## f)) | |
66 | #define SZC(f) szcount(xfs_sb_t, sb_ ## f) | |
67 | const field_t sb_flds[] = { | |
68 | { "magicnum", FLDT_UINT32X, OI(OFF(magicnum)), C1, 0, TYP_NONE }, | |
69 | { "blocksize", FLDT_UINT32D, OI(OFF(blocksize)), C1, 0, TYP_NONE }, | |
70 | { "dblocks", FLDT_DRFSBNO, OI(OFF(dblocks)), C1, 0, TYP_NONE }, | |
71 | { "rblocks", FLDT_DRFSBNO, OI(OFF(rblocks)), C1, 0, TYP_NONE }, | |
72 | { "rextents", FLDT_DRTBNO, OI(OFF(rextents)), C1, 0, TYP_NONE }, | |
73 | { "uuid", FLDT_UUID, OI(OFF(uuid)), C1, 0, TYP_NONE }, | |
74 | { "logstart", FLDT_DFSBNO, OI(OFF(logstart)), C1, 0, TYP_LOG }, | |
75 | { "rootino", FLDT_INO, OI(OFF(rootino)), C1, 0, TYP_INODE }, | |
76 | { "rbmino", FLDT_INO, OI(OFF(rbmino)), C1, 0, TYP_INODE }, | |
77 | { "rsumino", FLDT_INO, OI(OFF(rsumino)), C1, 0, TYP_INODE }, | |
78 | { "rextsize", FLDT_AGBLOCK, OI(OFF(rextsize)), C1, 0, TYP_NONE }, | |
79 | { "agblocks", FLDT_AGBLOCK, OI(OFF(agblocks)), C1, 0, TYP_NONE }, | |
80 | { "agcount", FLDT_AGNUMBER, OI(OFF(agcount)), C1, 0, TYP_NONE }, | |
81 | { "rbmblocks", FLDT_EXTLEN, OI(OFF(rbmblocks)), C1, 0, TYP_NONE }, | |
82 | { "logblocks", FLDT_EXTLEN, OI(OFF(logblocks)), C1, 0, TYP_NONE }, | |
83 | { "versionnum", FLDT_UINT16X, OI(OFF(versionnum)), C1, 0, TYP_NONE }, | |
84 | { "sectsize", FLDT_UINT16D, OI(OFF(sectsize)), C1, 0, TYP_NONE }, | |
85 | { "inodesize", FLDT_UINT16D, OI(OFF(inodesize)), C1, 0, TYP_NONE }, | |
86 | { "inopblock", FLDT_UINT16D, OI(OFF(inopblock)), C1, 0, TYP_NONE }, | |
87 | { "fname", FLDT_CHARNS, OI(OFF(fname)), CI(SZC(fname)), 0, TYP_NONE }, | |
88 | { "blocklog", FLDT_UINT8D, OI(OFF(blocklog)), C1, 0, TYP_NONE }, | |
89 | { "sectlog", FLDT_UINT8D, OI(OFF(sectlog)), C1, 0, TYP_NONE }, | |
90 | { "inodelog", FLDT_UINT8D, OI(OFF(inodelog)), C1, 0, TYP_NONE }, | |
91 | { "inopblog", FLDT_UINT8D, OI(OFF(inopblog)), C1, 0, TYP_NONE }, | |
92 | { "agblklog", FLDT_UINT8D, OI(OFF(agblklog)), C1, 0, TYP_NONE }, | |
93 | { "rextslog", FLDT_UINT8D, OI(OFF(rextslog)), C1, 0, TYP_NONE }, | |
94 | { "inprogress", FLDT_UINT8D, OI(OFF(inprogress)), C1, 0, TYP_NONE }, | |
95 | { "imax_pct", FLDT_UINT8D, OI(OFF(imax_pct)), C1, 0, TYP_NONE }, | |
96 | { "icount", FLDT_UINT64D, OI(OFF(icount)), C1, 0, TYP_NONE }, | |
97 | { "ifree", FLDT_UINT64D, OI(OFF(ifree)), C1, 0, TYP_NONE }, | |
98 | { "fdblocks", FLDT_UINT64D, OI(OFF(fdblocks)), C1, 0, TYP_NONE }, | |
99 | { "frextents", FLDT_UINT64D, OI(OFF(frextents)), C1, 0, TYP_NONE }, | |
100 | { "uquotino", FLDT_INO, OI(OFF(uquotino)), C1, 0, TYP_INODE }, | |
b36eef04 | 101 | { "gquotino", FLDT_INO, OI(OFF(gquotino)), C1, 0, TYP_INODE }, |
2bd0ea18 NS |
102 | { "qflags", FLDT_UINT16X, OI(OFF(qflags)), C1, 0, TYP_NONE }, |
103 | { "flags", FLDT_UINT8X, OI(OFF(flags)), C1, 0, TYP_NONE }, | |
104 | { "shared_vn", FLDT_UINT8D, OI(OFF(shared_vn)), C1, 0, TYP_NONE }, | |
105 | { "inoalignmt", FLDT_EXTLEN, OI(OFF(inoalignmt)), C1, 0, TYP_NONE }, | |
106 | { "unit", FLDT_UINT32D, OI(OFF(unit)), C1, 0, TYP_NONE }, | |
107 | { "width", FLDT_UINT32D, OI(OFF(width)), C1, 0, TYP_NONE }, | |
108 | { "dirblklog", FLDT_UINT8D, OI(OFF(dirblklog)), C1, 0, TYP_NONE }, | |
9440d84d NS |
109 | { "logsectlog", FLDT_UINT8D, OI(OFF(logsectlog)), C1, 0, TYP_NONE }, |
110 | { "logsectsize", FLDT_UINT16D, OI(OFF(logsectsize)), C1, 0, TYP_NONE }, | |
73bf5988 | 111 | { "logsunit", FLDT_UINT32D, OI(OFF(logsunit)), C1, 0, TYP_NONE }, |
465e76a9 | 112 | { "features2", FLDT_UINT32X, OI(OFF(features2)), C1, 0, TYP_NONE }, |
a23fa047 DC |
113 | { "bad_features2", FLDT_UINT32X, OI(OFF(bad_features2)), |
114 | C1, 0, TYP_NONE }, | |
115 | { "features_compat", FLDT_UINT32X, OI(OFF(features_compat)), | |
116 | C1, 0, TYP_NONE }, | |
117 | { "features_ro_compat", FLDT_UINT32X, OI(OFF(features_ro_compat)), | |
118 | C1, 0, TYP_NONE }, | |
119 | { "features_incompat", FLDT_UINT32X, OI(OFF(features_incompat)), | |
120 | C1, 0, TYP_NONE }, | |
121 | { "features_log_incompat", FLDT_UINT32X, OI(OFF(features_log_incompat)), | |
122 | C1, 0, TYP_NONE }, | |
0522f1cc | 123 | { "crc", FLDT_CRC, OI(OFF(crc)), C1, 0, TYP_NONE }, |
061e316e | 124 | { "spino_align", FLDT_EXTLEN, OI(OFF(spino_align)), C1, 0, TYP_NONE }, |
a23fa047 DC |
125 | { "pquotino", FLDT_INO, OI(OFF(pquotino)), C1, 0, TYP_INODE }, |
126 | { "lsn", FLDT_UINT64X, OI(OFF(lsn)), C1, 0, TYP_NONE }, | |
9c4e12fb | 127 | { "meta_uuid", FLDT_UUID, OI(OFF(meta_uuid)), C1, 0, TYP_NONE }, |
2bd0ea18 NS |
128 | { NULL } |
129 | }; | |
130 | ||
4ca431fc NS |
131 | const field_t sb_hfld[] = { |
132 | { "", FLDT_SB, OI(0), C1, 0, TYP_NONE }, | |
133 | { NULL } | |
134 | }; | |
135 | ||
2bd0ea18 NS |
136 | static void |
137 | sb_help(void) | |
138 | { | |
9ee7055c | 139 | dbprintf(_( |
2bd0ea18 NS |
140 | "\n" |
141 | " set allocation group superblock\n" | |
142 | "\n" | |
143 | " Example:\n" | |
144 | "\n" | |
145 | " 'sb 7' - set location to 7th allocation group superblock, set type to 'sb'\n" | |
146 | "\n" | |
9440d84d NS |
147 | " Located in the first sector of each allocation group, the superblock\n" |
148 | " contains the base information for the filesystem.\n" | |
2bd0ea18 NS |
149 | " The superblock in allocation group 0 is the primary. The copies in the\n" |
150 | " remaining allocation groups only serve as backup for filesystem recovery.\n" | |
151 | " The icount/ifree/fdblocks/frextents are only updated in superblock 0.\n" | |
152 | "\n" | |
9ee7055c | 153 | )); |
2bd0ea18 NS |
154 | } |
155 | ||
156 | static int | |
157 | sb_f( | |
158 | int argc, | |
159 | char **argv) | |
160 | { | |
161 | xfs_agnumber_t agno; | |
162 | char *p; | |
163 | ||
164 | if (argc > 1) { | |
165 | agno = (xfs_agnumber_t)strtoul(argv[1], &p, 0); | |
166 | if (*p != '\0' || agno >= mp->m_sb.sb_agcount) { | |
9ee7055c | 167 | dbprintf(_("bad allocation group number %s\n"), argv[1]); |
2bd0ea18 NS |
168 | return 0; |
169 | } | |
170 | cur_agno = agno; | |
171 | } else if (cur_agno == NULLAGNUMBER) | |
172 | cur_agno = 0; | |
173 | ASSERT(typtab[TYP_SB].typnm == TYP_SB); | |
9440d84d NS |
174 | set_cur(&typtab[TYP_SB], |
175 | XFS_AG_DADDR(mp, cur_agno, XFS_SB_DADDR), | |
176 | XFS_FSS_TO_BB(mp, 1), DB_RING_ADD, NULL); | |
2bd0ea18 NS |
177 | return 0; |
178 | } | |
179 | ||
2bd0ea18 NS |
180 | /*ARGSUSED*/ |
181 | int | |
182 | sb_size( | |
183 | void *obj, | |
184 | int startoff, | |
185 | int idx) | |
186 | { | |
187 | return bitize(mp->m_sb.sb_sectsize); | |
188 | } | |
4ca431fc NS |
189 | |
190 | static int | |
191 | get_sb(xfs_agnumber_t agno, xfs_sb_t *sb) | |
192 | { | |
193 | push_cur(); | |
194 | set_cur(&typtab[TYP_SB], | |
195 | XFS_AG_DADDR(mp, agno, XFS_SB_DADDR), | |
196 | XFS_FSS_TO_BB(mp, 1), DB_RING_IGN, NULL); | |
dfc130f3 | 197 | |
4ca431fc | 198 | if (!iocur_top->data) { |
9ee7055c | 199 | dbprintf(_("can't read superblock for AG %u\n"), agno); |
4ca431fc NS |
200 | pop_cur(); |
201 | return 0; | |
202 | } | |
203 | ||
5e656dbb | 204 | libxfs_sb_from_disk(sb, iocur_top->data); |
dfc130f3 | 205 | |
4ca431fc | 206 | if (sb->sb_magicnum != XFS_SB_MAGIC) { |
9ee7055c | 207 | dbprintf(_("bad sb magic # %#x in AG %u\n"), |
4ca431fc | 208 | sb->sb_magicnum, agno); |
dfc130f3 | 209 | return 0; |
4ca431fc | 210 | } |
5e656dbb | 211 | if (!xfs_sb_good_version(sb)) { |
9ee7055c | 212 | dbprintf(_("bad sb version # %#x in AG %u\n"), |
4ca431fc | 213 | sb->sb_versionnum, agno); |
dfc130f3 | 214 | return 0; |
4ca431fc NS |
215 | } |
216 | if (agno == 0 && sb->sb_inprogress != 0) { | |
9ee7055c | 217 | dbprintf(_("mkfs not completed successfully\n")); |
dfc130f3 | 218 | return 0; |
4ca431fc NS |
219 | } |
220 | return 1; | |
221 | } | |
222 | ||
223 | /* workaround craziness in the xlog routines */ | |
999f0b9c DC |
224 | int xlog_recover_do_trans(struct xlog *log, xlog_recover_t *t, int p) |
225 | { | |
226 | return 0; | |
227 | } | |
4ca431fc | 228 | |
add013da NS |
229 | int |
230 | sb_logcheck(void) | |
4ca431fc | 231 | { |
7ac353a9 | 232 | int dirty; |
4ca431fc NS |
233 | |
234 | if (mp->m_sb.sb_logstart) { | |
235 | if (x.logdev && x.logdev != x.ddev) { | |
9ee7055c AM |
236 | dbprintf(_("aborting - external log specified for FS " |
237 | "with an internal log\n")); | |
4ca431fc NS |
238 | return 0; |
239 | } | |
240 | } else { | |
241 | if (!x.logdev || (x.logdev == x.ddev)) { | |
9ee7055c AM |
242 | dbprintf(_("aborting - no external log specified for FS " |
243 | "with an external log\n")); | |
4ca431fc NS |
244 | return 0; |
245 | } | |
246 | } | |
247 | ||
75c8b434 | 248 | libxfs_buftarg_init(mp, x.ddev, x.logdev, x.rtdev); |
999f0b9c | 249 | |
7f725646 | 250 | dirty = xlog_is_dirty(mp, mp->m_log, &x, 0); |
7ac353a9 | 251 | if (dirty == -1) { |
9ee7055c | 252 | dbprintf(_("ERROR: cannot find log head/tail, run xfs_repair\n")); |
4ca431fc | 253 | return 0; |
7ac353a9 | 254 | } else if (dirty == 1) { |
9ee7055c | 255 | dbprintf(_( |
4ca431fc NS |
256 | "ERROR: The filesystem has valuable metadata changes in a log which needs to\n" |
257 | "be replayed. Mount the filesystem to replay the log, and unmount it before\n" | |
258 | "re-running %s. If you are unable to mount the filesystem, then use\n" | |
259 | "the xfs_repair -L option to destroy the log and attempt a repair.\n" | |
260 | "Note that destroying the log may cause corruption -- please attempt a mount\n" | |
9ee7055c | 261 | "of the filesystem before doing this.\n"), progname); |
4ca431fc NS |
262 | return 0; |
263 | } | |
7ac353a9 | 264 | /* Log is clean */ |
add013da NS |
265 | return 1; |
266 | } | |
267 | ||
268 | static int | |
269 | sb_logzero(uuid_t *uuidp) | |
270 | { | |
7f725646 BF |
271 | int cycle = XLOG_INIT_CYCLE; |
272 | int error; | |
273 | ||
add013da NS |
274 | if (!sb_logcheck()) |
275 | return 0; | |
4ca431fc | 276 | |
7f725646 BF |
277 | /* |
278 | * The log must always move forward on v5 superblocks. Bump it to the | |
279 | * next cycle. | |
280 | */ | |
281 | if (xfs_sb_version_hascrc(&mp->m_sb)) | |
282 | cycle = mp->m_log->l_curr_cycle + 1; | |
283 | ||
9ee7055c | 284 | dbprintf(_("Clearing log and setting UUID\n")); |
4ca431fc | 285 | |
1c12a814 | 286 | error = libxfs_log_clear(mp->m_logdev_targp, NULL, |
4ca431fc NS |
287 | XFS_FSB_TO_DADDR(mp, mp->m_sb.sb_logstart), |
288 | (xfs_extlen_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks), | |
289 | uuidp, | |
5e656dbb | 290 | xfs_sb_version_haslogv2(&mp->m_sb) ? 2 : 1, |
571a78a7 | 291 | mp->m_sb.sb_logsunit, XLOG_FMT, cycle, true); |
7f725646 | 292 | if (error) { |
9ee7055c | 293 | dbprintf(_("ERROR: cannot clear the log\n")); |
4ca431fc NS |
294 | return 0; |
295 | } | |
7f725646 | 296 | |
4ca431fc NS |
297 | return 1; |
298 | } | |
299 | ||
300 | ||
301 | static void | |
302 | uuid_help(void) | |
303 | { | |
9ee7055c | 304 | dbprintf(_( |
4ca431fc NS |
305 | "\n" |
306 | " write/print FS uuid\n" | |
307 | "\n" | |
308 | " Example:\n" | |
309 | "\n" | |
310 | " 'uuid' - print UUID\n" | |
311 | " 'uuid 01234567-0123-0123-0123-0123456789ab' - write UUID\n" | |
312 | " 'uuid generate' - generate and write\n" | |
313 | " 'uuid rewrite' - copy UUID from SB 0\n" | |
314 | "\n" | |
315 | "The print function checks the UUID in each SB and will warn if the UUIDs\n" | |
316 | "differ between AGs (the log is not checked). The write commands will\n" | |
317 | "set the uuid in all AGs to either a specified value, a newly generated\n" | |
318 | "value or the value found in the first superblock (SB 0) respectively.\n" | |
319 | "As a side effect of writing the UUID, the log is cleared (which is fine\n" | |
320 | "on a CLEANLY unmounted FS).\n" | |
321 | "\n" | |
9ee7055c | 322 | )); |
4ca431fc NS |
323 | } |
324 | ||
325 | static uuid_t * | |
326 | do_uuid(xfs_agnumber_t agno, uuid_t *uuid) | |
327 | { | |
328 | xfs_sb_t tsb; | |
329 | static uuid_t uu; | |
330 | ||
331 | if (!get_sb(agno, &tsb)) | |
332 | return NULL; | |
333 | ||
334 | if (!uuid) { /* get uuid */ | |
335 | memcpy(&uu, &tsb.sb_uuid, sizeof(uuid_t)); | |
336 | pop_cur(); | |
337 | return &uu; | |
338 | } | |
339 | /* set uuid */ | |
9c4e12fb ES |
340 | if (!xfs_sb_version_hascrc(&tsb)) |
341 | goto write; | |
342 | /* | |
343 | * If we have CRCs, and this UUID differs from that stamped in the | |
344 | * metadata, set the incompat flag and copy the old one to the | |
345 | * metadata-specific location. | |
346 | * | |
347 | * If we are setting the user-visible UUID back to match the metadata | |
348 | * UUID, clear the metadata-specific location and the incompat flag. | |
349 | */ | |
350 | if (!xfs_sb_version_hasmetauuid(&tsb) && | |
351 | !uuid_equal(uuid, &mp->m_sb.sb_meta_uuid)) { | |
352 | mp->m_sb.sb_features_incompat |= XFS_SB_FEAT_INCOMPAT_META_UUID; | |
353 | tsb.sb_features_incompat |= XFS_SB_FEAT_INCOMPAT_META_UUID; | |
354 | memcpy(&tsb.sb_meta_uuid, &tsb.sb_uuid, sizeof(uuid_t)); | |
355 | } else if (xfs_sb_version_hasmetauuid(&tsb) && | |
356 | uuid_equal(uuid, &mp->m_sb.sb_meta_uuid)) { | |
357 | memset(&tsb.sb_meta_uuid, 0, sizeof(uuid_t)); | |
358 | /* Write those zeros now; it's ignored once we clear the flag */ | |
359 | libxfs_sb_to_disk(iocur_top->data, &tsb); | |
360 | mp->m_sb.sb_features_incompat &= | |
361 | ~XFS_SB_FEAT_INCOMPAT_META_UUID; | |
362 | tsb.sb_features_incompat &= ~XFS_SB_FEAT_INCOMPAT_META_UUID; | |
363 | } | |
364 | ||
365 | write: | |
4ca431fc | 366 | memcpy(&tsb.sb_uuid, uuid, sizeof(uuid_t)); |
19ebedcf | 367 | libxfs_sb_to_disk(iocur_top->data, &tsb); |
4ca431fc NS |
368 | write_cur(); |
369 | return uuid; | |
370 | } | |
371 | ||
372 | static int | |
373 | uuid_f( | |
374 | int argc, | |
375 | char **argv) | |
376 | { | |
377 | char bp[40]; | |
378 | xfs_agnumber_t agno; | |
379 | uuid_t uu; | |
380 | uuid_t *uup = NULL; | |
381 | ||
382 | if (argc != 1 && argc != 2) { | |
9ee7055c | 383 | dbprintf(_("invalid parameters\n")); |
4ca431fc NS |
384 | return 0; |
385 | } | |
386 | ||
387 | if (argc == 2) { /* WRITE UUID */ | |
388 | ||
389 | if ((x.isreadonly & LIBXFS_ISREADONLY) || !expert_mode) { | |
9ee7055c | 390 | dbprintf(_("%s: not in expert mode, writing disabled\n"), |
4ca431fc NS |
391 | progname); |
392 | return 0; | |
393 | } | |
394 | ||
395 | if (!strcasecmp(argv[1], "generate")) { | |
4d32d744 | 396 | platform_uuid_generate(&uu); |
4ca431fc | 397 | } else if (!strcasecmp(argv[1], "nil")) { |
4d32d744 | 398 | platform_uuid_clear(&uu); |
4ca431fc NS |
399 | } else if (!strcasecmp(argv[1], "rewrite")) { |
400 | uup = do_uuid(0, NULL); | |
401 | if (!uup) { | |
9ee7055c | 402 | dbprintf(_("failed to read UUID from AG 0\n")); |
4ca431fc NS |
403 | return 0; |
404 | } | |
6699422d | 405 | memcpy(&uu, uup, sizeof(uuid_t)); |
4d32d744 | 406 | platform_uuid_unparse(&uu, bp); |
9ee7055c | 407 | dbprintf(_("old UUID = %s\n"), bp); |
9c4e12fb ES |
408 | } else if (!strcasecmp(argv[1], "restore")) { |
409 | xfs_sb_t tsb; | |
410 | ||
411 | if (!get_sb(0, &tsb)) | |
412 | return 0; | |
413 | ||
414 | /* Not set; nothing to do. Success! */ | |
415 | if (!xfs_sb_version_hasmetauuid(&tsb)) | |
416 | return 0; | |
f8149110 | 417 | |
9c4e12fb | 418 | memcpy(&uu, mp->m_sb.sb_meta_uuid, sizeof(uuid_t)); |
4ca431fc | 419 | } else { |
4d32d744 | 420 | if (platform_uuid_parse(argv[1], &uu)) { |
9ee7055c | 421 | dbprintf(_("invalid UUID\n")); |
4ca431fc NS |
422 | return 0; |
423 | } | |
424 | } | |
425 | ||
ff1f79a7 | 426 | /* clear the log (setting uuid) if it's not dirty */ |
add013da | 427 | if (!sb_logzero(&uu)) |
4ca431fc NS |
428 | return 0; |
429 | ||
9ee7055c | 430 | dbprintf(_("writing all SBs\n")); |
4ca431fc NS |
431 | for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) |
432 | if (!do_uuid(agno, &uu)) { | |
9ee7055c | 433 | dbprintf(_("failed to set UUID in AG %d\n"), agno); |
4ca431fc NS |
434 | break; |
435 | } | |
436 | ||
4d32d744 | 437 | platform_uuid_unparse(&uu, bp); |
9ee7055c | 438 | dbprintf(_("new UUID = %s\n"), bp); |
4ca431fc NS |
439 | return 0; |
440 | ||
441 | } else { /* READ+CHECK UUID */ | |
dfc130f3 | 442 | |
4ca431fc NS |
443 | for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) { |
444 | uup = do_uuid(agno, NULL); | |
445 | if (!uup) { | |
9ee7055c | 446 | dbprintf(_("failed to read UUID from AG %d\n"), |
4ca431fc NS |
447 | agno); |
448 | return 0; | |
449 | } | |
450 | if (agno) { | |
451 | if (memcmp(&uu, uup, sizeof(uuid_t))) { | |
9ee7055c AM |
452 | dbprintf(_("warning: UUID in AG %d " |
453 | "differs to the primary SB\n"), | |
4ca431fc NS |
454 | agno); |
455 | break; | |
456 | } | |
457 | } else { | |
6699422d | 458 | memcpy(&uu, uup, sizeof(uuid_t)); |
4ca431fc NS |
459 | } |
460 | } | |
461 | if (mp->m_sb.sb_logstart) { | |
462 | if (x.logdev && x.logdev != x.ddev) | |
9ee7055c AM |
463 | dbprintf(_("warning - external log specified " |
464 | "for FS with an internal log\n")); | |
4ca431fc | 465 | } else if (!x.logdev || (x.logdev == x.ddev)) { |
9ee7055c AM |
466 | dbprintf(_("warning - no external log specified " |
467 | "for FS with an external log\n")); | |
4ca431fc NS |
468 | } |
469 | ||
4d32d744 | 470 | platform_uuid_unparse(&uu, bp); |
9ee7055c | 471 | dbprintf(_("UUID = %s\n"), bp); |
4ca431fc NS |
472 | } |
473 | ||
474 | return 0; | |
475 | } | |
476 | ||
477 | ||
478 | static void | |
479 | label_help(void) | |
480 | { | |
9ee7055c | 481 | dbprintf(_( |
4ca431fc NS |
482 | "\n" |
483 | " write/print FS label\n" | |
484 | "\n" | |
485 | " Example:\n" | |
486 | "\n" | |
487 | " 'label' - print label\n" | |
488 | " 'label 123456789012' - write label\n" | |
489 | " 'label --' - write an empty label\n" | |
490 | "\n" | |
491 | "The print function checks the label in each SB and will warn if the labels\n" | |
492 | "differ between AGs. The write commands will set the label in all AGs to the\n" | |
493 | "specified value. The maximum length of a label is 12 characters - use of a\n" | |
494 | "longer label will result in truncation and a warning will be issued.\n" | |
495 | "\n" | |
9ee7055c | 496 | )); |
4ca431fc NS |
497 | } |
498 | ||
499 | static char * | |
500 | do_label(xfs_agnumber_t agno, char *label) | |
501 | { | |
502 | size_t len; | |
503 | xfs_sb_t tsb; | |
dfc130f3 | 504 | static char lbl[sizeof(tsb.sb_fname) + 1]; |
4ca431fc NS |
505 | |
506 | if (!get_sb(agno, &tsb)) | |
507 | return NULL; | |
508 | ||
509 | memset(&lbl[0], 0, sizeof(lbl)); | |
510 | ||
511 | if (!label) { /* get label */ | |
512 | pop_cur(); | |
513 | memcpy(&lbl[0], &tsb.sb_fname, sizeof(tsb.sb_fname)); | |
514 | return &lbl[0]; | |
515 | } | |
516 | /* set label */ | |
517 | if ((len = strlen(label)) > sizeof(tsb.sb_fname)) { | |
518 | if (agno == 0) | |
9ee7055c | 519 | dbprintf(_("%s: truncating label length from %d to %d\n"), |
4ca431fc NS |
520 | progname, (int)len, (int)sizeof(tsb.sb_fname)); |
521 | len = sizeof(tsb.sb_fname); | |
522 | } | |
523 | if ( len == 2 && | |
524 | (strcmp(label, "\"\"") == 0 || | |
525 | strcmp(label, "''") == 0 || | |
526 | strcmp(label, "--") == 0) ) | |
527 | label[0] = label[1] = '\0'; | |
528 | memset(&tsb.sb_fname, 0, sizeof(tsb.sb_fname)); | |
529 | memcpy(&tsb.sb_fname, label, len); | |
530 | memcpy(&lbl[0], &tsb.sb_fname, sizeof(tsb.sb_fname)); | |
19ebedcf | 531 | libxfs_sb_to_disk(iocur_top->data, &tsb); |
4ca431fc NS |
532 | write_cur(); |
533 | return &lbl[0]; | |
534 | } | |
535 | ||
536 | static int | |
537 | label_f( | |
538 | int argc, | |
539 | char **argv) | |
540 | { | |
541 | char *p = NULL; | |
542 | xfs_sb_t sb; | |
543 | xfs_agnumber_t ag; | |
544 | ||
545 | if (argc != 1 && argc != 2) { | |
9ee7055c | 546 | dbprintf(_("invalid parameters\n")); |
4ca431fc NS |
547 | return 0; |
548 | } | |
549 | ||
550 | if (argc == 2) { /* WRITE LABEL */ | |
551 | ||
552 | if ((x.isreadonly & LIBXFS_ISREADONLY) || !expert_mode) { | |
9ee7055c | 553 | dbprintf(_("%s: not in expert mode, writing disabled\n"), |
4ca431fc NS |
554 | progname); |
555 | return 0; | |
556 | } | |
557 | ||
9ee7055c | 558 | dbprintf(_("writing all SBs\n")); |
4ca431fc NS |
559 | for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) |
560 | if ((p = do_label(ag, argv[1])) == NULL) { | |
9ee7055c | 561 | dbprintf(_("failed to set label in AG %d\n"), ag); |
4ca431fc NS |
562 | break; |
563 | } | |
9ee7055c | 564 | dbprintf(_("new label = \"%s\"\n"), p); |
4ca431fc NS |
565 | |
566 | } else { /* READ LABEL */ | |
567 | ||
568 | for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) { | |
569 | p = do_label(ag, NULL); | |
570 | if (!p) { | |
9ee7055c | 571 | dbprintf(_("failed to read label in AG %d\n"), ag); |
4ca431fc NS |
572 | return 0; |
573 | } | |
574 | if (!ag) | |
575 | memcpy(&sb.sb_fname, p, sizeof(sb.sb_fname)); | |
576 | else if (memcmp(&sb.sb_fname, p, sizeof(sb.sb_fname))) | |
9ee7055c | 577 | dbprintf(_("warning: AG %d label differs\n"), ag); |
4ca431fc | 578 | } |
9ee7055c | 579 | dbprintf(_("label = \"%s\"\n"), p); |
4ca431fc NS |
580 | } |
581 | return 0; | |
582 | } | |
583 | ||
584 | ||
585 | static void | |
586 | version_help(void) | |
587 | { | |
9ee7055c | 588 | dbprintf(_( |
4ca431fc NS |
589 | "\n" |
590 | " set/print feature bits in sb version\n" | |
591 | "\n" | |
592 | " Example:\n" | |
593 | "\n" | |
594 | " 'version' - print current feature bits\n" | |
595 | " 'version extflg' - enable unwritten extents\n" | |
70476e54 NS |
596 | " 'version attr1' - enable v1 inline extended attributes\n" |
597 | " 'version attr2' - enable v2 inline extended attributes\n" | |
66997473 | 598 | " 'version log2' - enable v2 log format\n" |
4ca431fc NS |
599 | "\n" |
600 | "The version function prints currently enabled features for a filesystem\n" | |
ff1f79a7 | 601 | "according to the version field of its primary superblock.\n" |
4ca431fc | 602 | "It can also be used to enable selected features, such as support for\n" |
ff1f79a7 | 603 | "unwritten extents. The updated version is written into all AGs.\n" |
4ca431fc | 604 | "\n" |
9ee7055c | 605 | )); |
4ca431fc NS |
606 | } |
607 | ||
608 | static int | |
70476e54 | 609 | do_version(xfs_agnumber_t agno, __uint16_t version, __uint32_t features) |
4ca431fc NS |
610 | { |
611 | xfs_sb_t tsb; | |
612 | ||
613 | if (!get_sb(agno, &tsb)) | |
614 | return 0; | |
615 | ||
72f11257 ES |
616 | if (xfs_sb_has_mismatched_features2(&tsb)) { |
617 | dbprintf(_("Superblock has mismatched features2 fields, " | |
618 | "skipping modification\n")); | |
619 | return 0; | |
620 | } | |
621 | ||
66997473 | 622 | if ((version & XFS_SB_VERSION_LOGV2BIT) && |
5e656dbb | 623 | !xfs_sb_version_haslogv2(&tsb)) { |
66997473 | 624 | tsb.sb_logsunit = 1; |
66997473 NS |
625 | } |
626 | ||
70476e54 NS |
627 | tsb.sb_versionnum = version; |
628 | tsb.sb_features2 = features; | |
72f11257 | 629 | tsb.sb_bad_features2 = features; |
19ebedcf | 630 | libxfs_sb_to_disk(iocur_top->data, &tsb); |
4ca431fc NS |
631 | write_cur(); |
632 | return 1; | |
633 | } | |
634 | ||
635 | static char * | |
636 | version_string( | |
637 | xfs_sb_t *sbp) | |
638 | { | |
639 | static char s[1024]; | |
640 | ||
641 | if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_1) | |
642 | strcpy(s, "V1"); | |
643 | else if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_2) | |
644 | strcpy(s, "V2"); | |
645 | else if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_3) | |
646 | strcpy(s, "V3"); | |
647 | else if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) | |
648 | strcpy(s, "V4"); | |
a23fa047 DC |
649 | else if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) |
650 | strcpy(s, "V5"); | |
4ca431fc | 651 | |
5f6f3660 DC |
652 | /* |
653 | * We assume the state of these features now, so macros don't exist for | |
654 | * them any more. | |
655 | */ | |
656 | if (sbp->sb_versionnum & XFS_SB_VERSION_NLINKBIT) | |
657 | strcat(s, ",NLINK"); | |
658 | if (sbp->sb_versionnum & XFS_SB_VERSION_SHAREDBIT) | |
659 | strcat(s, ",SHARED"); | |
660 | if (sbp->sb_versionnum & XFS_SB_VERSION_DIRV2BIT) | |
661 | strcat(s, ",DIRV2"); | |
662 | ||
5e656dbb | 663 | if (xfs_sb_version_hasattr(sbp)) |
4ca431fc | 664 | strcat(s, ",ATTR"); |
5e656dbb | 665 | if (xfs_sb_version_hasquota(sbp)) |
4ca431fc | 666 | strcat(s, ",QUOTA"); |
5e656dbb | 667 | if (xfs_sb_version_hasalign(sbp)) |
4ca431fc | 668 | strcat(s, ",ALIGN"); |
5e656dbb | 669 | if (xfs_sb_version_hasdalign(sbp)) |
4ca431fc | 670 | strcat(s, ",DALIGN"); |
5e656dbb | 671 | if (xfs_sb_version_haslogv2(sbp)) |
4ca431fc | 672 | strcat(s, ",LOGV2"); |
5e656dbb | 673 | if (xfs_sb_version_hasextflgbit(sbp)) |
4ca431fc | 674 | strcat(s, ",EXTFLG"); |
5e656dbb | 675 | if (xfs_sb_version_hassector(sbp)) |
4ca431fc | 676 | strcat(s, ",SECTOR"); |
51ca7008 BN |
677 | if (xfs_sb_version_hasasciici(sbp)) |
678 | strcat(s, ",ASCII_CI"); | |
5e656dbb | 679 | if (xfs_sb_version_hasmorebits(sbp)) |
ca86e759 | 680 | strcat(s, ",MOREBITS"); |
5e656dbb | 681 | if (xfs_sb_version_hasattr2(sbp)) |
ca86e759 | 682 | strcat(s, ",ATTR2"); |
5e656dbb | 683 | if (xfs_sb_version_haslazysbcount(sbp)) |
cdded3d8 | 684 | strcat(s, ",LAZYSBCOUNT"); |
22bc10ed AM |
685 | if (xfs_sb_version_hasprojid32bit(sbp)) |
686 | strcat(s, ",PROJID32BIT"); | |
a23fa047 DC |
687 | if (xfs_sb_version_hascrc(sbp)) |
688 | strcat(s, ",CRC"); | |
42737f1a MT |
689 | if (xfs_sb_version_hasftype(sbp)) |
690 | strcat(s, ",FTYPE"); | |
b7fc3b36 ES |
691 | if (xfs_sb_version_hasfinobt(sbp)) |
692 | strcat(s, ",FINOBT"); | |
b8db0171 BF |
693 | if (xfs_sb_version_hassparseinodes(sbp)) |
694 | strcat(s, ",SPARSE_INODES"); | |
9c4e12fb ES |
695 | if (xfs_sb_version_hasmetauuid(sbp)) |
696 | strcat(s, ",META_UUID"); | |
9fb2cb27 DW |
697 | if (xfs_sb_version_hasreflink(sbp)) |
698 | strcat(s, ",REFLINK"); | |
4ca431fc NS |
699 | return s; |
700 | } | |
701 | ||
a23fa047 DC |
702 | /* |
703 | * XXX: this only supports reading and writing to version 4 superblock fields. | |
704 | * V5 superblocks always define certain V4 feature bits - they are blocked from | |
705 | * being changed if a V5 sb is detected, but otherwise v5 superblock features | |
706 | * are not handled here. | |
707 | */ | |
4ca431fc NS |
708 | static int |
709 | version_f( | |
710 | int argc, | |
711 | char **argv) | |
712 | { | |
713 | __uint16_t version = 0; | |
70476e54 | 714 | __uint32_t features = 0; |
4ca431fc NS |
715 | xfs_agnumber_t ag; |
716 | ||
717 | if (argc == 2) { /* WRITE VERSION */ | |
718 | ||
719 | if ((x.isreadonly & LIBXFS_ISREADONLY) || !expert_mode) { | |
9ee7055c | 720 | dbprintf(_("%s: not in expert mode, writing disabled\n"), |
4ca431fc NS |
721 | progname); |
722 | return 0; | |
723 | } | |
724 | ||
725 | /* Logic here derived from the IRIX xfs_chver(1M) script. */ | |
726 | if (!strcasecmp(argv[1], "extflg")) { | |
727 | switch (XFS_SB_VERSION_NUM(&mp->m_sb)) { | |
728 | case XFS_SB_VERSION_1: | |
729 | version = 0x0004 | XFS_SB_VERSION_EXTFLGBIT; | |
730 | break; | |
731 | case XFS_SB_VERSION_2: | |
732 | version = 0x0014 | XFS_SB_VERSION_EXTFLGBIT; | |
733 | break; | |
734 | case XFS_SB_VERSION_3: | |
735 | version = 0x0034 | XFS_SB_VERSION_EXTFLGBIT; | |
736 | break; | |
737 | case XFS_SB_VERSION_4: | |
5e656dbb | 738 | if (xfs_sb_version_hasextflgbit(&mp->m_sb)) |
a23fa047 DC |
739 | dbprintf( |
740 | _("unwritten extents flag is already enabled\n")); | |
4ca431fc NS |
741 | else |
742 | version = mp->m_sb.sb_versionnum | | |
743 | XFS_SB_VERSION_EXTFLGBIT; | |
744 | break; | |
a23fa047 DC |
745 | case XFS_SB_VERSION_5: |
746 | dbprintf( | |
747 | _("unwritten extents always enabled for v5 superblocks.\n")); | |
748 | break; | |
4ca431fc | 749 | } |
66997473 NS |
750 | } else if (!strcasecmp(argv[1], "log2")) { |
751 | switch (XFS_SB_VERSION_NUM(&mp->m_sb)) { | |
752 | case XFS_SB_VERSION_1: | |
753 | version = 0x0004 | XFS_SB_VERSION_LOGV2BIT; | |
754 | break; | |
755 | case XFS_SB_VERSION_2: | |
756 | version = 0x0014 | XFS_SB_VERSION_LOGV2BIT; | |
757 | break; | |
758 | case XFS_SB_VERSION_3: | |
759 | version = 0x0034 | XFS_SB_VERSION_LOGV2BIT; | |
760 | break; | |
761 | case XFS_SB_VERSION_4: | |
5e656dbb | 762 | if (xfs_sb_version_haslogv2(&mp->m_sb)) |
a23fa047 DC |
763 | dbprintf( |
764 | _("version 2 log format is already in use\n")); | |
66997473 NS |
765 | else |
766 | version = mp->m_sb.sb_versionnum | | |
767 | XFS_SB_VERSION_LOGV2BIT; | |
768 | break; | |
a23fa047 DC |
769 | case XFS_SB_VERSION_5: |
770 | dbprintf( | |
771 | _("Version 2 logs always enabled for v5 superblocks.\n")); | |
772 | break; | |
66997473 | 773 | } |
a23fa047 DC |
774 | } else if (XFS_SB_VERSION_NUM(&mp->m_sb) == XFS_SB_VERSION_5) { |
775 | dbprintf( | |
776 | _("%s: Cannot change %s on v5 superblocks.\n"), | |
777 | progname, argv[1]); | |
778 | return 0; | |
70476e54 | 779 | } else if (!strcasecmp(argv[1], "attr1")) { |
a23fa047 | 780 | |
5e656dbb | 781 | if (xfs_sb_version_hasattr2(&mp->m_sb)) { |
70476e54 NS |
782 | if (!(mp->m_sb.sb_features2 &= |
783 | ~XFS_SB_VERSION2_ATTR2BIT)) | |
784 | mp->m_sb.sb_versionnum &= | |
785 | ~XFS_SB_VERSION_MOREBITSBIT; | |
786 | } | |
5e656dbb | 787 | xfs_sb_version_addattr(&mp->m_sb); |
70476e54 NS |
788 | version = mp->m_sb.sb_versionnum; |
789 | features = mp->m_sb.sb_features2; | |
790 | } else if (!strcasecmp(argv[1], "attr2")) { | |
5e656dbb BN |
791 | xfs_sb_version_addattr(&mp->m_sb); |
792 | xfs_sb_version_addattr2(&mp->m_sb); | |
22bc10ed AM |
793 | version = mp->m_sb.sb_versionnum; |
794 | features = mp->m_sb.sb_features2; | |
795 | } else if (!strcasecmp(argv[1], "projid32bit")) { | |
796 | xfs_sb_version_addprojid32bit(&mp->m_sb); | |
70476e54 NS |
797 | version = mp->m_sb.sb_versionnum; |
798 | features = mp->m_sb.sb_features2; | |
4ca431fc | 799 | } else { |
9ee7055c | 800 | dbprintf(_("%s: invalid version change command \"%s\"\n"), |
4ca431fc NS |
801 | progname, argv[1]); |
802 | return 0; | |
803 | } | |
804 | ||
805 | if (version) { | |
9ee7055c | 806 | dbprintf(_("writing all SBs\n")); |
4ca431fc | 807 | for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) |
70476e54 | 808 | if (!do_version(ag, version, features)) { |
9ee7055c AM |
809 | dbprintf(_("failed to set versionnum " |
810 | "in AG %d\n"), ag); | |
4ca431fc NS |
811 | break; |
812 | } | |
813 | mp->m_sb.sb_versionnum = version; | |
70476e54 | 814 | mp->m_sb.sb_features2 = features; |
4ca431fc NS |
815 | } |
816 | } | |
d2df702b NS |
817 | |
818 | if (argc == 3) { /* VERSIONNUM + FEATURES2 */ | |
819 | char *sp; | |
820 | ||
821 | version = mp->m_sb.sb_versionnum; | |
822 | features = mp->m_sb.sb_features2; | |
823 | mp->m_sb.sb_versionnum = strtoul(argv[1], &sp, 0); | |
824 | mp->m_sb.sb_features2 = strtoul(argv[2], &sp, 0); | |
825 | } | |
826 | ||
9ee7055c | 827 | dbprintf(_("versionnum [0x%x+0x%x] = %s\n"), mp->m_sb.sb_versionnum, |
ca86e759 | 828 | mp->m_sb.sb_features2, version_string(&mp->m_sb)); |
d2df702b NS |
829 | |
830 | if (argc == 3) { /* now reset... */ | |
831 | mp->m_sb.sb_versionnum = version; | |
832 | mp->m_sb.sb_features2 = features; | |
833 | return 0; | |
834 | } | |
835 | ||
4ca431fc NS |
836 | return 0; |
837 | } |