dumpfs(8): Staticize
[dragonfly.git] / sbin / dumpfs / dumpfs.c
CommitLineData
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1/*
2 * Copyright (c) 1983, 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
dc71b7ab 13 * 3. Neither the name of the University nor the names of its contributors
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14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
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28 *
29 * @(#) Copyright (c) 1983, 1992, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)dumpfs.c 8.5 (Berkeley) 4/29/95
31 * $FreeBSD: src/sbin/dumpfs/dumpfs.c,v 1.13.2.1 2001/01/22 18:10:11 iedowse Exp $
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32 */
33
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34#include <sys/param.h>
35#include <sys/time.h>
36
67ad9090 37#include <vfs/ufs/dinode.h>
38a690d7 38#include <vfs/ufs/fs.h>
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39
40#include <err.h>
41#include <fcntl.h>
42#include <fstab.h>
43#include <stdio.h>
44#include <stdlib.h>
39754106 45#include <string.h>
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46#include <unistd.h>
47
481bf185 48static union {
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49 struct fs fs;
50 char pad[MAXBSIZE];
51} fsun;
52#define afs fsun.fs
53
481bf185 54static union {
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55 struct cg cg;
56 char pad[MAXBSIZE];
57} cgun;
58#define acg cgun.cg
59
481bf185 60static long dev_bsize = 1;
984263bc 61
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62static int dumpfs(char *);
63static int dumpcg(char *, int, int);
64static int marshal(const char*);
65static void pbits(void *, int);
66static void usage(void);
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67
68int
b5744197 69main(int argc, char **argv)
984263bc 70{
d2e67f89 71 struct fstab *fs;
39754106 72 int ch, domarshal, eval;
984263bc 73
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74 domarshal = 0;
75
76 while ((ch = getopt(argc, argv, "m")) != -1)
984263bc 77 switch(ch) {
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78 case 'm':
79 domarshal = 1;
80 break;
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81 case '?':
82 default:
83 usage();
84 }
85 argc -= optind;
86 argv += optind;
87
88 if (argc < 1)
89 usage();
90
91 for (eval = 0; *argv; ++argv)
92 if ((fs = getfsfile(*argv)) == NULL)
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93 if (domarshal)
94 eval |= marshal(*argv);
95 else
96 eval |= dumpfs(*argv);
984263bc 97 else
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98 if (domarshal)
99 eval |= marshal(fs->fs_spec);
100 else
101 eval |= dumpfs(fs->fs_spec);
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102 exit(eval);
103}
104
481bf185 105static int
b5744197 106dumpfs(char *name)
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107{
108 ssize_t n;
109 int fd, c, i, j, k, size;
110
111 if ((fd = open(name, O_RDONLY, 0)) < 0)
112 goto err;
113 if (lseek(fd, (off_t)SBOFF, SEEK_SET) == (off_t)-1)
114 goto err;
115 if ((n = read(fd, &afs, SBSIZE)) == -1)
116 goto err;
117
118 if (n != SBSIZE) {
119 warnx("%s: non-existent or truncated superblock, skipped",
120 name);
7cee7052 121 close(fd);
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122 return (1);
123 }
124 if (afs.fs_magic != FS_MAGIC) {
125 warnx("%s: superblock has bad magic number, skipped", name);
7cee7052 126 close(fd);
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127 return (1);
128 }
129
130 if (afs.fs_postblformat == FS_42POSTBLFMT)
131 afs.fs_nrpos = 8;
132 dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1);
133 printf("magic\t%x\ttime\t%s", afs.fs_magic,
e62b5614 134 ctime((time_t *)&afs.fs_time));
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135 printf("id\t[ %x %x ]\n", afs.fs_id[0], afs.fs_id[1]);
136 printf("cylgrp\t%s\tinodes\t%s\n",
137 afs.fs_postblformat == FS_42POSTBLFMT ? "static" : "dynamic",
138 afs.fs_inodefmt < FS_44INODEFMT ? "4.2/4.3BSD" : "4.4BSD");
139 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
140 afs.fs_cstotal.cs_nbfree, afs.fs_cstotal.cs_ndir,
141 afs.fs_cstotal.cs_nifree, afs.fs_cstotal.cs_nffree);
142 printf("ncg\t%d\tncyl\t%d\tsize\t%d\tblocks\t%d\n",
143 afs.fs_ncg, afs.fs_ncyl, afs.fs_size, afs.fs_dsize);
144 printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
145 afs.fs_bsize, afs.fs_bshift, afs.fs_bmask);
146 printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
147 afs.fs_fsize, afs.fs_fshift, afs.fs_fmask);
148 printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
149 afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb);
150 printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n",
151 afs.fs_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg);
152 printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n",
153 afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time",
154 afs.fs_maxcontig, afs.fs_maxbpg);
155 printf("rotdelay %dms\trps\t%d\n",
156 afs.fs_rotdelay, afs.fs_rps);
157 printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n",
158 afs.fs_ntrak, afs.fs_nsect, afs.fs_npsect, afs.fs_spc);
159 printf("symlinklen %d\ttrackskew %d\tinterleave %d\tcontigsumsize %d\n",
160 afs.fs_maxsymlinklen, afs.fs_trackskew, afs.fs_interleave,
161 afs.fs_contigsumsize);
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162 printf("nindir\t%d\tinopb\t%d\tnspf\t%d\tmaxfilesize\t%ju\n",
163 afs.fs_nindir, afs.fs_inopb, afs.fs_nspf,
164 (intmax_t)afs.fs_maxfilesize);
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165 printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
166 afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno);
167 printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n",
168 afs.fs_sbsize, afs.fs_cgsize, afs.fs_cgoffset, afs.fs_cgmask);
169 printf("csaddr\t%d\tcssize\t%d\tshift\t%d\tmask\t0x%08x\n",
170 afs.fs_csaddr, afs.fs_cssize, afs.fs_csshift, afs.fs_csmask);
171 printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t%d\n",
172 afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean);
173 printf("flags\t");
174 if (afs.fs_flags == 0)
175 printf("none");
176 if (afs.fs_flags & FS_UNCLEAN)
177 printf("unclean ");
178 if (afs.fs_flags & FS_DOSOFTDEP)
179 printf("soft-updates ");
180 if ((afs.fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP)) != 0)
181 printf("unknown flags (%#x)",
182 afs.fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP));
183 putchar('\n');
184 if (afs.fs_cpc != 0)
185 printf("blocks available in each of %d rotational positions",
186 afs.fs_nrpos);
187 else
188 printf("(no rotational position table)\n");
189 for (c = 0; c < afs.fs_cpc; c++) {
190 printf("\ncylinder number %d:", c);
191 for (i = 0; i < afs.fs_nrpos; i++) {
192 if (fs_postbl(&afs, c)[i] == -1)
193 continue;
194 printf("\n position %d:\t", i);
195 for (j = fs_postbl(&afs, c)[i], k = 1; ;
196 j += fs_rotbl(&afs)[j], k++) {
197 printf("%5d", j);
198 if (k % 12 == 0)
199 printf("\n\t\t");
200 if (fs_rotbl(&afs)[j] == 0)
201 break;
202 }
203 }
204 }
205 printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
206 afs.fs_csp = calloc(1, afs.fs_cssize);
207 for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) {
208 size = afs.fs_cssize - i < afs.fs_bsize ?
209 afs.fs_cssize - i : afs.fs_bsize;
210 if (lseek(fd,
211 (off_t)(fsbtodb(&afs, (afs.fs_csaddr + j * afs.fs_frag))) *
212 (off_t)dev_bsize, SEEK_SET) == (off_t)-1)
213 goto err;
214 if (read(fd, (char *)afs.fs_csp + i, size) != size)
215 goto err;
216 }
217 for (i = 0; i < afs.fs_ncg; i++) {
218 struct csum *cs = &afs.fs_cs(&afs, i);
219 if (i && i % 4 == 0)
220 printf("\n\t");
221 printf("(%d,%d,%d,%d) ",
222 cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree);
223 }
224 printf("\n");
225 if (afs.fs_ncyl % afs.fs_cpg) {
226 printf("cylinders in last group %d\n",
227 i = afs.fs_ncyl % afs.fs_cpg);
228 printf("blocks in last group %d\n",
229 i * afs.fs_spc / NSPB(&afs));
230 }
231 printf("\n");
232 for (i = 0; i < afs.fs_ncg; i++)
233 if (dumpcg(name, fd, i))
234 goto err;
7cee7052 235 close(fd);
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236 return (0);
237
238err: if (fd != -1)
7cee7052 239 close(fd);
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240 warn("%s", name);
241 return (1);
242};
243
481bf185 244static int
b5744197 245dumpcg(char *name, int fd, int c)
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246{
247 off_t cur;
248 int i, j;
249
250 printf("\ncg %d:\n", c);
251 if ((cur = lseek(fd, (off_t)(fsbtodb(&afs, cgtod(&afs, c))) *
252 (off_t)dev_bsize, SEEK_SET)) == (off_t)-1)
253 return (1);
254 if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) {
255 warnx("%s: error reading cg", name);
256 return (1);
257 }
a276dc6b 258 printf("magic\t%x\ttell\t%jx\ttime\t%s",
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259 afs.fs_postblformat == FS_42POSTBLFMT ?
260 ((struct ocg *)&acg)->cg_magic : acg.cg_magic,
a276dc6b 261 (intmax_t)cur, ctime((time_t *)&acg.cg_time));
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262 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
263 acg.cg_cgx, acg.cg_ncyl, acg.cg_niblk, acg.cg_ndblk);
264 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
265 acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir,
266 acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree);
267 printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum",
268 acg.cg_rotor, acg.cg_irotor, acg.cg_frotor);
269 for (i = 1, j = 0; i < afs.fs_frag; i++) {
270 printf("\t%d", acg.cg_frsum[i]);
271 j += i * acg.cg_frsum[i];
272 }
273 printf("\nsum of frsum: %d", j);
274 if (afs.fs_contigsumsize > 0) {
275 for (i = 1; i < afs.fs_contigsumsize; i++) {
276 if ((i - 1) % 8 == 0)
277 printf("\nclusters %d-%d:", i,
278 afs.fs_contigsumsize - 1 < i + 7 ?
279 afs.fs_contigsumsize - 1 : i + 7);
280 printf("\t%d", cg_clustersum(&acg)[i]);
281 }
282 printf("\nclusters size %d and over: %d\n",
283 afs.fs_contigsumsize,
284 cg_clustersum(&acg)[afs.fs_contigsumsize]);
285 printf("clusters free:\t");
286 pbits(cg_clustersfree(&acg), acg.cg_nclusterblks);
287 } else
288 printf("\n");
289 printf("iused:\t");
290 pbits(cg_inosused(&acg), afs.fs_ipg);
291 printf("free:\t");
292 pbits(cg_blksfree(&acg), afs.fs_fpg);
293 printf("b:\n");
294 for (i = 0; i < afs.fs_cpg; i++) {
295 if (cg_blktot(&acg)[i] == 0)
296 continue;
297 printf(" c%d:\t(%d)\t", i, cg_blktot(&acg)[i]);
298 for (j = 0; j < afs.fs_nrpos; j++) {
299 if (afs.fs_cpc > 0 &&
300 fs_postbl(&afs, i % afs.fs_cpc)[j] == -1)
301 continue;
302 printf(" %d", cg_blks(&afs, &acg, i)[j]);
303 }
304 printf("\n");
305 }
306 return (0);
307};
308
481bf185 309static int
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310marshal(const char *name)
311{
312 ssize_t n;
313 int fd;
5fa5ed52 314 static char realname[PATH_MAX];
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315
316 if ((fd = open(name, O_RDONLY, 0)) < 0)
317 goto err;
318 if (lseek(fd, (off_t)SBOFF, SEEK_SET) == (off_t)-1)
319 goto err;
320 if ((n = read(fd, &afs, SBSIZE)) == -1)
321 goto err;
322
323 if (n != SBSIZE) {
324 warnx("%s: non-existent or truncated superblock, skipped",
325 name);
326 close(fd);
327 return (1);
328 }
329 if (afs.fs_magic != FS_MAGIC) {
330 warnx("%s: superblock has bad magic number, skipped", name);
331 close(fd);
332 return (1);
333 }
334
335 if(strncmp(name, "/dev", 4) == 0) {
5fa5ed52 336 snprintf(realname, PATH_MAX, "%s", name);
39754106 337 } else {
5fa5ed52 338 snprintf(realname, PATH_MAX, "/dev/%s", name);
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339 }
340
341 printf("# newfs command for %s (%s)\n", name, realname);
342 printf("newfs ");
343 if (afs.fs_flags & FS_DOSOFTDEP)
344 printf("-U ");
345 printf("-a %d ", afs.fs_maxcontig);
346 printf("-b %d ", afs.fs_bsize);
347 /* -c calculated */
348 /* -d should be 0 per manpage */
349 printf("-e %d ", afs.fs_maxbpg);
350 printf("-f %d ", afs.fs_fsize);
351 printf("-g %d ", afs.fs_avgfilesize);
352 printf("-h %d ", afs.fs_avgfpdir);
353 /* -i calculated */
354 /* -j..l not implemented */
355 printf("-m %d ", afs.fs_minfree);
356 /* -n not implemented */
357 printf(" -o ");
358 switch (afs.fs_optim) {
359 case FS_OPTSPACE:
360 printf("space ");
361 break;
362 case FS_OPTTIME:
363 printf("time ");
364 break;
365 default:
366 printf("unknown ");
367 break;
368 }
369 /* -p..r not implemented */
370 printf("-s %jd ", (intmax_t)afs.fs_size);
371 printf("%s ", realname);
372 printf("\n");
373
374 return (0);
375
376err: if (fd != -1)
377 close(fd);
378 warn("%s", name);
379 return (1);
380
381}
382
481bf185 383static void
d2e67f89 384pbits(void *vp, int max)
984263bc 385{
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386 int i;
387 char *p;
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388 int count, j;
389
390 for (count = i = 0, p = vp; i < max; i++)
391 if (isset(p, i)) {
392 if (count)
393 printf(",%s", count % 6 ? " " : "\n\t");
394 count++;
395 printf("%d", i);
396 j = i;
397 while ((i+1)<max && isset(p, i+1))
398 i++;
399 if (i != j)
400 printf("-%d", i);
401 }
402 printf("\n");
403}
404
481bf185 405static void
b5744197 406usage(void)
984263bc 407{
7cee7052 408 fprintf(stderr, "usage: dumpfs filesys | device\n");
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409 exit(1);
410}