dumpfs.c revision 187814 
1/*
2 * Copyright (c) 2009 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * This software was developed at the University of Cambridge Computer
6 * Laboratory with support from a grant from Google, Inc.
7 *
8 * Copyright (c) 2002 Networks Associates Technology, Inc.
9 * All rights reserved.
10 *
11 * This software was developed for the FreeBSD Project by Marshall
12 * Kirk McKusick and Network Associates Laboratories, the Security
13 * Research Division of Network Associates, Inc. under DARPA/SPAWAR
14 * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
15 * research program.
16 *
17 * Copyright (c) 1983, 1992, 1993
18 *	The Regents of the University of California.  All rights reserved.
19 *
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
22 * are met:
23 * 1. Redistributions of source code must retain the above copyright
24 *    notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 *    notice, this list of conditions and the following disclaimer in the
27 *    documentation and/or other materials provided with the distribution.
28 * 4. Neither the name of the University nor the names of its contributors
29 *    may be used to endorse or promote products derived from this software
30 *    without specific prior written permission.
31 *
32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
42 * SUCH DAMAGE.
43 */
44
45#ifndef lint
46static const char copyright[] =
47"@(#) Copyright (c) 1983, 1992, 1993\n\
48	The Regents of the University of California.  All rights reserved.\n";
49#endif /* not lint */
50
51#ifndef lint
52#if 0
53static char sccsid[] = "@(#)dumpfs.c	8.5 (Berkeley) 4/29/95";
54#endif
55static const char rcsid[] =
56  "$FreeBSD: head/sbin/dumpfs/dumpfs.c 187814 2009-01-28 09:33:00Z rwatson $";
57#endif /* not lint */
58
59#include <sys/param.h>
60#include <sys/time.h>
61#include <sys/disklabel.h>
62
63#include <ufs/ufs/dinode.h>
64#include <ufs/ffs/fs.h>
65
66#include <err.h>
67#include <errno.h>
68#include <fcntl.h>
69#include <fstab.h>
70#include <libufs.h>
71#include <stdint.h>
72#include <stdio.h>
73#include <stdlib.h>
74#include <unistd.h>
75
76#define	afs	disk.d_fs
77#define	acg	disk.d_cg
78
79struct uufsd disk;
80
81int	dumpfs(const char *);
82int	dumpcg(void);
83int	dumpfreespace(const char *, int);
84void	dumpfreespacecg(int);
85int	marshal(const char *);
86void	pbits(void *, int);
87void	pblklist(void *, int, off_t, int);
88void	ufserr(const char *);
89void	usage(void) __dead2;
90
91int
92main(int argc, char *argv[])
93{
94	const char *name;
95	int ch, dofreespace, domarshal, eval;
96
97	dofreespace = domarshal = eval = 0;
98
99	while ((ch = getopt(argc, argv, "fm")) != -1) {
100		switch (ch) {
101		case 'f':
102			dofreespace++;
103			break;
104		case 'm':
105			domarshal = 1;
106			break;
107		case '?':
108		default:
109			usage();
110		}
111	}
112	argc -= optind;
113	argv += optind;
114
115	if (argc < 1)
116		usage();
117	if (dofreespace && domarshal)
118		usage();
119	if (dofreespace > 2)
120		usage();
121
122	while ((name = *argv++) != NULL) {
123		if (ufs_disk_fillout(&disk, name) == -1) {
124			ufserr(name);
125			eval |= 1;
126			continue;
127		}
128		if (dofreespace)
129			eval |= dumpfreespace(name, dofreespace);
130		else if (domarshal)
131			eval |= marshal(name);
132		else
133			eval |= dumpfs(name);
134		ufs_disk_close(&disk);
135	}
136	exit(eval);
137}
138
139int
140dumpfs(const char *name)
141{
142	time_t fstime;
143	int64_t fssize;
144	int32_t fsflags;
145	int i;
146
147	switch (disk.d_ufs) {
148	case 2:
149		fssize = afs.fs_size;
150		fstime = afs.fs_time;
151		printf("magic\t%x (UFS2)\ttime\t%s",
152		    afs.fs_magic, ctime(&fstime));
153		printf("superblock location\t%jd\tid\t[ %x %x ]\n",
154		    (intmax_t)afs.fs_sblockloc, afs.fs_id[0], afs.fs_id[1]);
155		printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
156		    afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
157		break;
158	case 1:
159		fssize = afs.fs_old_size;
160		fstime = afs.fs_old_time;
161		printf("magic\t%x (UFS1)\ttime\t%s",
162		    afs.fs_magic, ctime(&fstime));
163		printf("id\t[ %x %x ]\n", afs.fs_id[0], afs.fs_id[1]);
164		printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
165		    afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
166		break;
167	default:
168		goto err;
169	}
170	printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
171	    afs.fs_bsize, afs.fs_bshift, afs.fs_bmask);
172	printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
173	    afs.fs_fsize, afs.fs_fshift, afs.fs_fmask);
174	printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
175	    afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb);
176	printf("minfree\t%d%%\toptim\t%s\tsymlinklen %d\n",
177	    afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time",
178	    afs.fs_maxsymlinklen);
179	switch (disk.d_ufs) {
180	case 2:
181		printf("%s %d\tmaxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
182		    "maxbsize", afs.fs_maxbsize, afs.fs_maxbpg,
183		    afs.fs_maxcontig, afs.fs_contigsumsize);
184		printf("nbfree\t%jd\tndir\t%jd\tnifree\t%jd\tnffree\t%jd\n",
185		    (intmax_t)afs.fs_cstotal.cs_nbfree,
186		    (intmax_t)afs.fs_cstotal.cs_ndir,
187		    (intmax_t)afs.fs_cstotal.cs_nifree,
188		    (intmax_t)afs.fs_cstotal.cs_nffree);
189		printf("bpg\t%d\tfpg\t%d\tipg\t%d\tunrefs\t%jd\n",
190		    afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg,
191		    (intmax_t)afs.fs_unrefs);
192		printf("nindir\t%d\tinopb\t%d\tmaxfilesize\t%ju\n",
193		    afs.fs_nindir, afs.fs_inopb,
194		    (uintmax_t)afs.fs_maxfilesize);
195		printf("sbsize\t%d\tcgsize\t%d\tcsaddr\t%jd\tcssize\t%d\n",
196		    afs.fs_sbsize, afs.fs_cgsize, (intmax_t)afs.fs_csaddr,
197		    afs.fs_cssize);
198		break;
199	case 1:
200		printf("maxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
201		    afs.fs_maxbpg, afs.fs_maxcontig, afs.fs_contigsumsize);
202		printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
203		    afs.fs_old_cstotal.cs_nbfree, afs.fs_old_cstotal.cs_ndir,
204		    afs.fs_old_cstotal.cs_nifree, afs.fs_old_cstotal.cs_nffree);
205		printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n",
206		    afs.fs_old_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg,
207		    afs.fs_ipg);
208		printf("nindir\t%d\tinopb\t%d\tnspf\t%d\tmaxfilesize\t%ju\n",
209		    afs.fs_nindir, afs.fs_inopb, afs.fs_old_nspf,
210		    (uintmax_t)afs.fs_maxfilesize);
211		printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n",
212		    afs.fs_sbsize, afs.fs_cgsize, afs.fs_old_cgoffset,
213		    afs.fs_old_cgmask);
214		printf("csaddr\t%d\tcssize\t%d\n",
215		    afs.fs_old_csaddr, afs.fs_cssize);
216		printf("rotdelay %dms\trps\t%d\ttrackskew %d\tinterleave %d\n",
217		    afs.fs_old_rotdelay, afs.fs_old_rps, afs.fs_old_trackskew,
218		    afs.fs_old_interleave);
219		printf("nsect\t%d\tnpsect\t%d\tspc\t%d\n",
220		    afs.fs_old_nsect, afs.fs_old_npsect, afs.fs_old_spc);
221		break;
222	default:
223		goto err;
224	}
225	printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
226	    afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno);
227	printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t%d\n",
228	    afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean);
229	printf("avgfpdir %d\tavgfilesize %d\n",
230	    afs.fs_avgfpdir, afs.fs_avgfilesize);
231	printf("flags\t");
232	if (afs.fs_old_flags & FS_FLAGS_UPDATED)
233		fsflags = afs.fs_flags;
234	else
235		fsflags = afs.fs_old_flags;
236	if (fsflags == 0)
237		printf("none");
238	if (fsflags & FS_UNCLEAN)
239		printf("unclean ");
240	if (fsflags & FS_DOSOFTDEP)
241		printf("soft-updates ");
242	if (fsflags & FS_NEEDSFSCK)
243		printf("needs fsck run ");
244	if (fsflags & FS_INDEXDIRS)
245		printf("indexed directories ");
246	if (fsflags & FS_ACLS)
247		printf("acls ");
248	if (fsflags & FS_MULTILABEL)
249		printf("multilabel ");
250	if (fsflags & FS_GJOURNAL)
251		printf("gjournal ");
252	if (fsflags & FS_FLAGS_UPDATED)
253		printf("fs_flags expanded ");
254	fsflags &= ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK | FS_INDEXDIRS |
255		     FS_ACLS | FS_MULTILABEL | FS_GJOURNAL | FS_FLAGS_UPDATED);
256	if (fsflags != 0)
257		printf("unknown flags (%#x)", fsflags);
258	putchar('\n');
259	printf("fsmnt\t%s\n", afs.fs_fsmnt);
260	printf("volname\t%s\tswuid\t%ju\n",
261		afs.fs_volname, (uintmax_t)afs.fs_swuid);
262	printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
263	afs.fs_csp = calloc(1, afs.fs_cssize);
264	if (bread(&disk, fsbtodb(&afs, afs.fs_csaddr), afs.fs_csp, afs.fs_cssize) == -1)
265		goto err;
266	for (i = 0; i < afs.fs_ncg; i++) {
267		struct csum *cs = &afs.fs_cs(&afs, i);
268		if (i && i % 4 == 0)
269			printf("\n\t");
270		printf("(%d,%d,%d,%d) ",
271		    cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree);
272	}
273	printf("\n");
274	if (fssize % afs.fs_fpg) {
275		if (disk.d_ufs == 1)
276			printf("cylinders in last group %d\n",
277			    howmany(afs.fs_old_size % afs.fs_fpg,
278			    afs.fs_old_spc / afs.fs_old_nspf));
279		printf("blocks in last group %ld\n\n",
280		    (long)((fssize % afs.fs_fpg) / afs.fs_frag));
281	}
282	while ((i = cgread(&disk)) != 0) {
283		if (i == -1 || dumpcg())
284			goto err;
285	}
286	return (0);
287
288err:	ufserr(name);
289	return (1);
290}
291
292int
293dumpcg(void)
294{
295	time_t cgtime;
296	off_t cur;
297	int i, j;
298
299	printf("\ncg %d:\n", disk.d_lcg);
300	cur = fsbtodb(&afs, cgtod(&afs, disk.d_lcg)) * disk.d_bsize;
301	switch (disk.d_ufs) {
302	case 2:
303		cgtime = acg.cg_time;
304		printf("magic\t%x\ttell\t%jx\ttime\t%s",
305		    acg.cg_magic, (intmax_t)cur, ctime(&cgtime));
306		printf("cgx\t%d\tndblk\t%d\tniblk\t%d\tinitiblk %d\tunrefs %d\n",
307		    acg.cg_cgx, acg.cg_ndblk, acg.cg_niblk, acg.cg_initediblk,
308		    acg.cg_unrefs);
309		break;
310	case 1:
311		cgtime = acg.cg_old_time;
312		printf("magic\t%x\ttell\t%jx\ttime\t%s",
313		    acg.cg_magic, (intmax_t)cur, ctime(&cgtime));
314		printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
315		    acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk,
316		    acg.cg_ndblk);
317		break;
318	default:
319		break;
320	}
321	printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
322	    acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir,
323	    acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree);
324	printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum",
325	    acg.cg_rotor, acg.cg_irotor, acg.cg_frotor);
326	for (i = 1, j = 0; i < afs.fs_frag; i++) {
327		printf("\t%d", acg.cg_frsum[i]);
328		j += i * acg.cg_frsum[i];
329	}
330	printf("\nsum of frsum: %d", j);
331	if (afs.fs_contigsumsize > 0) {
332		for (i = 1; i < afs.fs_contigsumsize; i++) {
333			if ((i - 1) % 8 == 0)
334				printf("\nclusters %d-%d:", i,
335				    afs.fs_contigsumsize - 1 < i + 7 ?
336				    afs.fs_contigsumsize - 1 : i + 7);
337			printf("\t%d", cg_clustersum(&acg)[i]);
338		}
339		printf("\nclusters size %d and over: %d\n",
340		    afs.fs_contigsumsize,
341		    cg_clustersum(&acg)[afs.fs_contigsumsize]);
342		printf("clusters free:\t");
343		pbits(cg_clustersfree(&acg), acg.cg_nclusterblks);
344	} else
345		printf("\n");
346	printf("inodes used:\t");
347	pbits(cg_inosused(&acg), afs.fs_ipg);
348	printf("blks free:\t");
349	pbits(cg_blksfree(&acg), afs.fs_fpg);
350	return (0);
351}
352
353int
354dumpfreespace(const char *name, int fflag)
355{
356	int i;
357
358	while ((i = cgread(&disk)) != 0) {
359		if (i == -1)
360			goto err;
361		dumpfreespacecg(fflag);
362	}
363	return (0);
364err:
365	ufserr(name);
366	return (1);
367}
368
369void
370dumpfreespacecg(int fflag)
371{
372
373	pblklist(cg_blksfree(&acg), afs.fs_fpg, disk.d_lcg * afs.fs_fpg,
374	    fflag);
375}
376
377int
378marshal(const char *name)
379{
380	struct fs *fs;
381
382	fs = &disk.d_fs;
383
384	printf("# newfs command for %s (%s)\n", name, disk.d_name);
385	printf("newfs ");
386	if (fs->fs_volname[0] != '\0')
387		printf("-L %s ", fs->fs_volname);
388	printf("-O %d ", disk.d_ufs);
389	if (fs->fs_flags & FS_DOSOFTDEP)
390		printf("-U ");
391	printf("-a %d ", fs->fs_maxcontig);
392	printf("-b %d ", fs->fs_bsize);
393	/* -c is dumb */
394	printf("-d %d ", fs->fs_maxbsize);
395	printf("-e %d ", fs->fs_maxbpg);
396	printf("-f %d ", fs->fs_fsize);
397	printf("-g %d ", fs->fs_avgfilesize);
398	printf("-h %d ", fs->fs_avgfpdir);
399	/* -i is dumb */
400	/* -j..l unimplemented */
401	printf("-m %d ", fs->fs_minfree);
402	/* -n unimplemented */
403	printf("-o ");
404	switch (fs->fs_optim) {
405	case FS_OPTSPACE:
406		printf("space ");
407		break;
408	case FS_OPTTIME:
409		printf("time ");
410		break;
411	default:
412		printf("unknown ");
413		break;
414	}
415	/* -p..r unimplemented */
416	printf("-s %jd ", (intmax_t)fs->fs_size);
417	printf("%s ", disk.d_name);
418	printf("\n");
419
420	return 0;
421}
422
423void
424pbits(void *vp, int max)
425{
426	int i;
427	char *p;
428	int count, j;
429
430	for (count = i = 0, p = vp; i < max; i++)
431		if (isset(p, i)) {
432			if (count)
433				printf(",%s", count % 6 ? " " : "\n\t");
434			count++;
435			printf("%d", i);
436			j = i;
437			while ((i+1)<max && isset(p, i+1))
438				i++;
439			if (i != j)
440				printf("-%d", i);
441		}
442	printf("\n");
443}
444
445void
446pblklist(void *vp, int max, off_t offset, int fflag)
447{
448	int i, j;
449	char *p;
450
451	for (i = 0, p = vp; i < max; i++) {
452		if (isset(p, i)) {
453			printf("%jd", (intmax_t)(i + offset));
454			if (fflag < 2) {
455				j = i;
456				while ((i+1)<max && isset(p, i+1))
457					i++;
458				if (i != j)
459					printf("-%lld", i + offset);
460			}
461			printf("\n");
462		}
463	}
464}
465
466void
467ufserr(const char *name)
468{
469	if (disk.d_error != NULL)
470		warnx("%s: %s", name, disk.d_error);
471	else if (errno)
472		warn("%s", name);
473}
474
475void
476usage(void)
477{
478	(void)fprintf(stderr, "usage: dumpfs [-fm] filesys | device\n");
479	exit(1);
480}
481