1 |
|
|
/* $OpenBSD: main.c,v 1.50 2016/09/09 15:37:15 tb Exp $ */ |
2 |
|
|
/* $NetBSD: main.c,v 1.22 1996/10/11 20:15:48 thorpej Exp $ */ |
3 |
|
|
|
4 |
|
|
/* |
5 |
|
|
* Copyright (c) 1980, 1986, 1993 |
6 |
|
|
* The Regents of the University of California. All rights reserved. |
7 |
|
|
* |
8 |
|
|
* Redistribution and use in source and binary forms, with or without |
9 |
|
|
* modification, are permitted provided that the following conditions |
10 |
|
|
* are met: |
11 |
|
|
* 1. Redistributions of source code must retain the above copyright |
12 |
|
|
* notice, this list of conditions and the following disclaimer. |
13 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright |
14 |
|
|
* notice, this list of conditions and the following disclaimer in the |
15 |
|
|
* documentation and/or other materials provided with the distribution. |
16 |
|
|
* 3. Neither the name of the University nor the names of its contributors |
17 |
|
|
* may be used to endorse or promote products derived from this software |
18 |
|
|
* without specific prior written permission. |
19 |
|
|
* |
20 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
21 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
22 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
23 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
24 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
25 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
26 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
27 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
28 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
29 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
30 |
|
|
* SUCH DAMAGE. |
31 |
|
|
*/ |
32 |
|
|
|
33 |
|
|
#include <sys/time.h> |
34 |
|
|
#include <sys/signal.h> |
35 |
|
|
#include <sys/mount.h> |
36 |
|
|
#include <ufs/ufs/dinode.h> |
37 |
|
|
#include <ufs/ffs/fs.h> |
38 |
|
|
#include <stdlib.h> |
39 |
|
|
#include <string.h> |
40 |
|
|
#include <ctype.h> |
41 |
|
|
#include <stdio.h> |
42 |
|
|
#include <unistd.h> |
43 |
|
|
#include <err.h> |
44 |
|
|
|
45 |
|
|
#include "fsck.h" |
46 |
|
|
#include "extern.h" |
47 |
|
|
#include "fsutil.h" |
48 |
|
|
|
49 |
|
|
volatile sig_atomic_t returntosingle; |
50 |
|
|
|
51 |
|
|
int argtoi(int, char *, char *, int); |
52 |
|
|
int checkfilesys(char *, char *, long, int); |
53 |
|
|
int main(int, char *[]); |
54 |
|
|
|
55 |
|
|
extern char *__progname; |
56 |
|
|
|
57 |
|
|
void |
58 |
|
|
usage(void) |
59 |
|
|
{ |
60 |
|
|
fprintf(stderr, "usage: %s [-fnpy] [-b block#] [-c level] " |
61 |
|
|
"[-m mode] filesystem\n", __progname); |
62 |
|
|
exit(1); |
63 |
|
|
} |
64 |
|
|
int |
65 |
|
|
main(int argc, char *argv[]) |
66 |
|
|
{ |
67 |
|
|
int ch; |
68 |
|
|
int ret = 0; |
69 |
|
|
|
70 |
|
|
sync(); |
71 |
|
|
skipclean = 1; |
72 |
|
|
while ((ch = getopt(argc, argv, "dfpnNyYb:c:m:")) != -1) { |
73 |
|
|
switch (ch) { |
74 |
|
|
case 'p': |
75 |
|
|
preen = 1; |
76 |
|
|
break; |
77 |
|
|
|
78 |
|
|
case 'b': |
79 |
|
|
skipclean = 0; |
80 |
|
|
bflag = argtoi('b', "number", optarg, 10); |
81 |
|
|
printf("Alternate super block location: %d\n", bflag); |
82 |
|
|
break; |
83 |
|
|
|
84 |
|
|
case 'c': |
85 |
|
|
skipclean = 0; |
86 |
|
|
cvtlevel = argtoi('c', "conversion level", optarg, 10); |
87 |
|
|
if (cvtlevel < 3) |
88 |
|
|
errexit("cannot do level %d conversion\n", |
89 |
|
|
cvtlevel); |
90 |
|
|
break; |
91 |
|
|
|
92 |
|
|
case 'd': |
93 |
|
|
debug = 1; |
94 |
|
|
break; |
95 |
|
|
|
96 |
|
|
case 'f': |
97 |
|
|
skipclean = 0; |
98 |
|
|
break; |
99 |
|
|
|
100 |
|
|
case 'm': |
101 |
|
|
lfmode = argtoi('m', "mode", optarg, 8); |
102 |
|
|
if (lfmode &~ 07777) |
103 |
|
|
errexit("bad mode to -m: %o\n", lfmode); |
104 |
|
|
printf("** lost+found creation mode %o\n", lfmode); |
105 |
|
|
break; |
106 |
|
|
|
107 |
|
|
case 'n': |
108 |
|
|
case 'N': |
109 |
|
|
nflag = 1; |
110 |
|
|
yflag = 0; |
111 |
|
|
break; |
112 |
|
|
|
113 |
|
|
case 'y': |
114 |
|
|
case 'Y': |
115 |
|
|
yflag = 1; |
116 |
|
|
nflag = 0; |
117 |
|
|
break; |
118 |
|
|
|
119 |
|
|
default: |
120 |
|
|
usage(); |
121 |
|
|
} |
122 |
|
|
} |
123 |
|
|
argc -= optind; |
124 |
|
|
argv += optind; |
125 |
|
|
|
126 |
|
|
if (argc != 1) |
127 |
|
|
usage(); |
128 |
|
|
|
129 |
|
|
if (signal(SIGINT, SIG_IGN) != SIG_IGN) |
130 |
|
|
(void)signal(SIGINT, catch); |
131 |
|
|
if (preen) |
132 |
|
|
(void)signal(SIGQUIT, catchquit); |
133 |
|
|
catchinfo(0); |
134 |
|
|
|
135 |
|
|
(void)checkfilesys(blockcheck(*argv), 0, 0L, 0); |
136 |
|
|
|
137 |
|
|
if (returntosingle) |
138 |
|
|
ret = 2; |
139 |
|
|
|
140 |
|
|
exit(ret); |
141 |
|
|
} |
142 |
|
|
|
143 |
|
|
int |
144 |
|
|
argtoi(int flag, char *req, char *str, int base) |
145 |
|
|
{ |
146 |
|
|
char *cp; |
147 |
|
|
int ret; |
148 |
|
|
|
149 |
|
|
ret = (int)strtol(str, &cp, base); |
150 |
|
|
if (cp == str || *cp) |
151 |
|
|
errexit("-%c flag requires a %s\n", flag, req); |
152 |
|
|
return (ret); |
153 |
|
|
} |
154 |
|
|
|
155 |
|
|
/* |
156 |
|
|
* Check the specified filesystem. |
157 |
|
|
*/ |
158 |
|
|
/* ARGSUSED */ |
159 |
|
|
int |
160 |
|
|
checkfilesys(char *filesys, char *mntpt, long auxdata, int child) |
161 |
|
|
{ |
162 |
|
|
daddr_t n_ffree, n_bfree; |
163 |
|
|
struct dups *dp; |
164 |
|
|
struct zlncnt *zlnp; |
165 |
|
|
int cylno; |
166 |
|
|
|
167 |
|
|
if (preen && child) |
168 |
|
|
(void)signal(SIGQUIT, voidquit); |
169 |
|
|
setcdevname(filesys, NULL, preen); |
170 |
|
|
if (debug && preen) |
171 |
|
|
pwarn("starting\n"); |
172 |
|
|
|
173 |
|
|
switch (setup(filesys, 0)) { |
174 |
|
|
case 0: |
175 |
|
|
if (preen) |
176 |
|
|
pfatal("CAN'T CHECK FILE SYSTEM."); |
177 |
|
|
/* FALLTHROUGH */ |
178 |
|
|
case -1: |
179 |
|
|
if (fsreadfd != -1) { |
180 |
|
|
(void)close(fsreadfd); |
181 |
|
|
fsreadfd = -1; |
182 |
|
|
} |
183 |
|
|
if (fswritefd != -1) { |
184 |
|
|
(void)close(fswritefd); |
185 |
|
|
fswritefd = -1; |
186 |
|
|
} |
187 |
|
|
return (0); |
188 |
|
|
} |
189 |
|
|
info_filesys = filesys; |
190 |
|
|
|
191 |
|
|
/* |
192 |
|
|
* Cleared if any questions answered no. Used to decide if |
193 |
|
|
* the superblock should be marked clean. |
194 |
|
|
*/ |
195 |
|
|
resolved = 1; |
196 |
|
|
|
197 |
|
|
/* |
198 |
|
|
* 1: scan inodes tallying blocks used |
199 |
|
|
*/ |
200 |
|
|
if (preen == 0) { |
201 |
|
|
printf("** Last Mounted on %s\n", sblock.fs_fsmnt); |
202 |
|
|
if (hotroot()) |
203 |
|
|
printf("** Root file system\n"); |
204 |
|
|
printf("** Phase 1 - Check Blocks and Sizes\n"); |
205 |
|
|
} |
206 |
|
|
pass1(); |
207 |
|
|
|
208 |
|
|
/* |
209 |
|
|
* 1b: locate first references to duplicates, if any |
210 |
|
|
*/ |
211 |
|
|
if (duplist) { |
212 |
|
|
if (preen || usedsoftdep) |
213 |
|
|
pfatal("INTERNAL ERROR: dups with -p"); |
214 |
|
|
printf("** Phase 1b - Rescan For More DUPS\n"); |
215 |
|
|
pass1b(); |
216 |
|
|
} |
217 |
|
|
|
218 |
|
|
/* |
219 |
|
|
* 2: traverse directories from root to mark all connected directories |
220 |
|
|
*/ |
221 |
|
|
if (preen == 0) |
222 |
|
|
printf("** Phase 2 - Check Pathnames\n"); |
223 |
|
|
pass2(); |
224 |
|
|
|
225 |
|
|
/* |
226 |
|
|
* 3: scan inodes looking for disconnected directories |
227 |
|
|
*/ |
228 |
|
|
if (preen == 0) |
229 |
|
|
printf("** Phase 3 - Check Connectivity\n"); |
230 |
|
|
pass3(); |
231 |
|
|
|
232 |
|
|
/* |
233 |
|
|
* 4: scan inodes looking for disconnected files; check reference counts |
234 |
|
|
*/ |
235 |
|
|
if (preen == 0) |
236 |
|
|
printf("** Phase 4 - Check Reference Counts\n"); |
237 |
|
|
pass4(); |
238 |
|
|
|
239 |
|
|
/* |
240 |
|
|
* 5: check and repair resource counts in cylinder groups |
241 |
|
|
*/ |
242 |
|
|
if (preen == 0) |
243 |
|
|
printf("** Phase 5 - Check Cyl groups\n"); |
244 |
|
|
pass5(); |
245 |
|
|
|
246 |
|
|
/* |
247 |
|
|
* print out summary statistics |
248 |
|
|
*/ |
249 |
|
|
n_ffree = sblock.fs_cstotal.cs_nffree; |
250 |
|
|
n_bfree = sblock.fs_cstotal.cs_nbfree; |
251 |
|
|
pwarn("%lld files, %lld used, %lld free ", |
252 |
|
|
n_files, (long long)n_blks, |
253 |
|
|
(long long)(n_ffree + sblock.fs_frag * n_bfree)); |
254 |
|
|
printf("(%lld frags, %lld blocks, %lld.%lld%% fragmentation)\n", |
255 |
|
|
(long long)n_ffree, (long long)n_bfree, |
256 |
|
|
(long long)((n_ffree * 100) / sblock.fs_dsize), |
257 |
|
|
(long long)(((n_ffree * 1000 + sblock.fs_dsize / 2) / |
258 |
|
|
sblock.fs_dsize) % 10)); |
259 |
|
|
if (debug && |
260 |
|
|
(n_files -= maxino - ROOTINO - sblock.fs_cstotal.cs_nifree)) |
261 |
|
|
printf("%lld files missing\n", n_files); |
262 |
|
|
if (debug) { |
263 |
|
|
n_blks += sblock.fs_ncg * |
264 |
|
|
(cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); |
265 |
|
|
n_blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); |
266 |
|
|
n_blks += howmany(sblock.fs_cssize, sblock.fs_fsize); |
267 |
|
|
if (n_blks -= maxfsblock - (n_ffree + sblock.fs_frag * n_bfree)) |
268 |
|
|
printf("%lld blocks missing\n", (long long)n_blks); |
269 |
|
|
if (duplist != NULL) { |
270 |
|
|
printf("The following duplicate blocks remain:"); |
271 |
|
|
for (dp = duplist; dp; dp = dp->next) |
272 |
|
|
printf(" %lld,", (long long)dp->dup); |
273 |
|
|
printf("\n"); |
274 |
|
|
} |
275 |
|
|
if (zlnhead != NULL) { |
276 |
|
|
printf("The following zero link count inodes remain:"); |
277 |
|
|
for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) |
278 |
|
|
printf(" %llu,", |
279 |
|
|
(unsigned long long)zlnp->zlncnt); |
280 |
|
|
printf("\n"); |
281 |
|
|
} |
282 |
|
|
} |
283 |
|
|
zlnhead = NULL; |
284 |
|
|
duplist = NULL; |
285 |
|
|
muldup = NULL; |
286 |
|
|
inocleanup(); |
287 |
|
|
if (fsmodified) { |
288 |
|
|
sblock.fs_time = (time_t)time(NULL); |
289 |
|
|
sbdirty(); |
290 |
|
|
} |
291 |
|
|
if (cvtlevel && sblk.b_dirty) { |
292 |
|
|
/* |
293 |
|
|
* Write out the duplicate super blocks |
294 |
|
|
*/ |
295 |
|
|
for (cylno = 0; cylno < sblock.fs_ncg; cylno++) |
296 |
|
|
bwrite(fswritefd, (char *)&sblock, |
297 |
|
|
fsbtodb(&sblock, cgsblock(&sblock, cylno)), SBSIZE); |
298 |
|
|
} |
299 |
|
|
if (rerun) |
300 |
|
|
resolved = 0; |
301 |
|
|
ckfini(resolved); /* Don't mark fs clean if fsck needs to be re-run */ |
302 |
|
|
|
303 |
|
|
for (cylno = 0; cylno < sblock.fs_ncg; cylno++) |
304 |
|
|
free(inostathead[cylno].il_stat); |
305 |
|
|
free(inostathead); |
306 |
|
|
inostathead = NULL; |
307 |
|
|
|
308 |
|
|
free(blockmap); |
309 |
|
|
blockmap = NULL; |
310 |
|
|
free(sblock.fs_csp); |
311 |
|
|
free(sblk.b_un.b_buf); |
312 |
|
|
free(asblk.b_un.b_buf); |
313 |
|
|
|
314 |
|
|
if (!fsmodified) |
315 |
|
|
return (0); |
316 |
|
|
if (!preen) |
317 |
|
|
printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); |
318 |
|
|
if (rerun || !resolved) |
319 |
|
|
printf("\n***** PLEASE RERUN FSCK *****\n"); |
320 |
|
|
if (hotroot()) { |
321 |
|
|
struct statfs stfs_buf; |
322 |
|
|
/* |
323 |
|
|
* We modified the root. Do a mount update on |
324 |
|
|
* it, unless it is read-write, so we can continue. |
325 |
|
|
*/ |
326 |
|
|
if (statfs("/", &stfs_buf) == 0) { |
327 |
|
|
long flags = stfs_buf.f_flags; |
328 |
|
|
struct ufs_args args; |
329 |
|
|
int ret; |
330 |
|
|
|
331 |
|
|
if (flags & MNT_RDONLY) { |
332 |
|
|
args.fspec = 0; |
333 |
|
|
args.export_info.ex_flags = 0; |
334 |
|
|
args.export_info.ex_root = 0; |
335 |
|
|
flags |= MNT_UPDATE | MNT_RELOAD; |
336 |
|
|
ret = mount(MOUNT_FFS, "/", flags, &args); |
337 |
|
|
if (ret == 0) |
338 |
|
|
return(0); |
339 |
|
|
} |
340 |
|
|
} |
341 |
|
|
if (!preen) |
342 |
|
|
printf("\n***** REBOOT NOW *****\n"); |
343 |
|
|
sync(); |
344 |
|
|
return (4); |
345 |
|
|
} |
346 |
|
|
return (0); |
347 |
|
|
} |