Commit | Line | Data |
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76797561 DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
19052d90 | 7 | #ifndef lint |
958be3d3 | 8 | static char sccsid[] = "@(#)pass1.c 5.3 (Berkeley) %G%"; |
76797561 | 9 | #endif not lint |
19052d90 KM |
10 | |
11 | #include <sys/param.h> | |
12 | #include <sys/inode.h> | |
13 | #include <sys/fs.h> | |
14 | #include "fsck.h" | |
15 | ||
993a756c KM |
16 | static daddr_t badblk; |
17 | static daddr_t dupblk; | |
18 | int pass1check(); | |
19052d90 KM |
19 | |
20 | pass1() | |
21 | { | |
993a756c | 22 | register int c, i, j; |
19052d90 | 23 | register DINODE *dp; |
82dc9a9e | 24 | struct zlncnt *zlnp; |
7718c0e6 | 25 | int ndb, partial, cgd; |
19052d90 KM |
26 | struct inodesc idesc; |
27 | ino_t inumber; | |
28 | ||
7718c0e6 KM |
29 | /* |
30 | * Set file system reserved blocks in used block map. | |
31 | */ | |
32 | for (c = 0; c < sblock.fs_ncg; c++) { | |
33 | cgd = cgdmin(&sblock, c); | |
34 | if (c == 0) { | |
35 | i = cgbase(&sblock, c); | |
36 | cgd += howmany(sblock.fs_cssize, sblock.fs_fsize); | |
37 | } else | |
38 | i = cgsblock(&sblock, c); | |
39 | for (; i < cgd; i++) | |
40 | setbmap(i); | |
41 | } | |
42 | /* | |
43 | * Find all allocated blocks. | |
44 | */ | |
19052d90 KM |
45 | bzero((char *)&idesc, sizeof(struct inodesc)); |
46 | idesc.id_type = ADDR; | |
47 | idesc.id_func = pass1check; | |
48 | inumber = 0; | |
993a756c | 49 | n_files = n_blks = 0; |
19052d90 | 50 | for (c = 0; c < sblock.fs_ncg; c++) { |
19052d90 | 51 | for (i = 0; i < sblock.fs_ipg; i++, inumber++) { |
993a756c | 52 | if (inumber < ROOTINO) |
19052d90 | 53 | continue; |
39c18287 | 54 | dp = ginode(inumber); |
993a756c KM |
55 | if (!ALLOC(dp)) { |
56 | if (bcmp((char *)dp->di_db, (char *)zino.di_db, | |
57 | NDADDR * sizeof(daddr_t)) || | |
58 | bcmp((char *)dp->di_ib, (char *)zino.di_ib, | |
59 | NIADDR * sizeof(daddr_t)) || | |
60 | dp->di_mode || dp->di_size) { | |
19052d90 KM |
61 | pfatal("PARTIALLY ALLOCATED INODE I=%u", |
62 | inumber); | |
63 | if (reply("CLEAR") == 1) { | |
64 | zapino(dp); | |
65 | inodirty(); | |
19052d90 KM |
66 | } |
67 | } | |
993a756c KM |
68 | statemap[inumber] = USTATE; |
69 | continue; | |
70 | } | |
71 | lastino = inumber; | |
72 | if (dp->di_size < 0) { | |
73 | if (debug) | |
74 | printf("bad size %d:", dp->di_size); | |
75 | goto unknown; | |
76 | } | |
958be3d3 KM |
77 | if (!preen && (dp->di_mode & IFMT) == IFMT && |
78 | reply("HOLD BAD BLOCK") == 1) { | |
79 | dp->di_size = sblock.fs_fsize; | |
80 | dp->di_mode = IFREG|0600; | |
81 | inodirty(); | |
82 | } | |
993a756c KM |
83 | ndb = howmany(dp->di_size, sblock.fs_bsize); |
84 | if (SPECIAL(dp)) | |
85 | ndb++; | |
86 | for (j = ndb; j < NDADDR; j++) | |
87 | if (dp->di_db[j] != 0) { | |
88 | if (debug) | |
89 | printf("bad direct addr: %d\n", | |
90 | dp->di_db[j]); | |
91 | goto unknown; | |
92 | } | |
93 | for (j = 0, ndb -= NDADDR; ndb > 0; j++) | |
94 | ndb /= NINDIR(&sblock); | |
95 | for (; j < NIADDR; j++) | |
96 | if (dp->di_ib[j] != 0) { | |
97 | if (debug) | |
98 | printf("bad indirect addr: %d\n", | |
99 | dp->di_ib[j]); | |
100 | goto unknown; | |
101 | } | |
958be3d3 | 102 | if (ftypeok(dp) == 0) |
993a756c KM |
103 | goto unknown; |
104 | n_files++; | |
105 | lncntp[inumber] = dp->di_nlink; | |
106 | if (dp->di_nlink <= 0) { | |
82dc9a9e KM |
107 | zlnp = (struct zlncnt *)malloc(sizeof *zlnp); |
108 | if (zlnp == NULL) { | |
993a756c KM |
109 | pfatal("LINK COUNT TABLE OVERFLOW"); |
110 | if (reply("CONTINUE") == 0) | |
111 | errexit(""); | |
82dc9a9e KM |
112 | } else { |
113 | zlnp->zlncnt = inumber; | |
114 | zlnp->next = zlnhead; | |
115 | zlnhead = zlnp; | |
993a756c KM |
116 | } |
117 | } | |
118 | statemap[inumber] = DIRCT(dp) ? DSTATE : FSTATE; | |
119 | badblk = dupblk = 0; maxblk = 0; | |
120 | idesc.id_number = inumber; | |
993a756c | 121 | (void)ckinode(dp, &idesc); |
f0ed004a KM |
122 | idesc.id_entryno *= btodb(sblock.fs_fsize); |
123 | if (dp->di_blocks != idesc.id_entryno) { | |
993a756c | 124 | pwarn("INCORRECT BLOCK COUNT I=%u (%ld should be %ld)", |
f0ed004a | 125 | inumber, dp->di_blocks, idesc.id_entryno); |
993a756c KM |
126 | if (preen) |
127 | printf(" (CORRECTED)\n"); | |
128 | else if (reply("CORRECT") == 0) | |
129 | continue; | |
f0ed004a | 130 | dp->di_blocks = idesc.id_entryno; |
993a756c KM |
131 | inodirty(); |
132 | } | |
133 | continue; | |
134 | unknown: | |
135 | pfatal("UNKNOWN FILE TYPE I=%u", inumber); | |
7b9b1d1f | 136 | statemap[inumber] = FCLEAR; |
993a756c | 137 | if (reply("CLEAR") == 1) { |
7b9b1d1f | 138 | statemap[inumber] = USTATE; |
993a756c KM |
139 | zapino(dp); |
140 | inodirty(); | |
19052d90 KM |
141 | } |
142 | } | |
19052d90 KM |
143 | } |
144 | } | |
145 | ||
146 | pass1check(idesc) | |
147 | register struct inodesc *idesc; | |
148 | { | |
19052d90 KM |
149 | int res = KEEPON; |
150 | int anyout, nfrags; | |
151 | daddr_t blkno = idesc->id_blkno; | |
62e6c152 KM |
152 | register struct dups *dlp; |
153 | struct dups *new; | |
19052d90 | 154 | |
7718c0e6 KM |
155 | if ((anyout = outrange(blkno, idesc->id_numfrags)) != 0) { |
156 | blkerr(idesc->id_number, "BAD", blkno); | |
157 | if (++badblk >= MAXBAD) { | |
158 | pwarn("EXCESSIVE BAD BLKS I=%u", | |
159 | idesc->id_number); | |
160 | if (preen) | |
161 | printf(" (SKIPPING)\n"); | |
162 | else if (reply("CONTINUE") == 0) | |
163 | errexit(""); | |
164 | return (STOP); | |
165 | } | |
166 | } | |
19052d90 KM |
167 | for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) { |
168 | if (anyout && outrange(blkno, 1)) { | |
19052d90 | 169 | res = SKIP; |
7718c0e6 KM |
170 | } else if (!getbmap(blkno)) { |
171 | n_blks++; | |
172 | setbmap(blkno); | |
173 | } else { | |
19052d90 KM |
174 | blkerr(idesc->id_number, "DUP", blkno); |
175 | if (++dupblk >= MAXDUP) { | |
176 | pwarn("EXCESSIVE DUP BLKS I=%u", | |
177 | idesc->id_number); | |
178 | if (preen) | |
179 | printf(" (SKIPPING)\n"); | |
180 | else if (reply("CONTINUE") == 0) | |
181 | errexit(""); | |
182 | return (STOP); | |
183 | } | |
62e6c152 KM |
184 | new = (struct dups *)malloc(sizeof(struct dups)); |
185 | if (new == NULL) { | |
19052d90 KM |
186 | pfatal("DUP TABLE OVERFLOW."); |
187 | if (reply("CONTINUE") == 0) | |
188 | errexit(""); | |
189 | return (STOP); | |
190 | } | |
62e6c152 KM |
191 | new->dup = blkno; |
192 | if (muldup == 0) { | |
193 | duplist = muldup = new; | |
194 | new->next = 0; | |
195 | } else { | |
196 | new->next = muldup->next; | |
197 | muldup->next = new; | |
19052d90 | 198 | } |
62e6c152 KM |
199 | for (dlp = duplist; dlp != muldup; dlp = dlp->next) |
200 | if (dlp->dup == blkno) | |
201 | break; | |
202 | if (dlp == muldup && dlp->dup != blkno) | |
203 | muldup = new; | |
19052d90 | 204 | } |
f0ed004a KM |
205 | /* |
206 | * count the number of blocks found in id_entryno | |
207 | */ | |
208 | idesc->id_entryno++; | |
19052d90 KM |
209 | } |
210 | return (res); | |
211 | } |