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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * icheck.c --- given a list of blocks, generate a list of inodes | |
efc6f628 | 3 | * |
3839e657 TT |
4 | * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed |
5 | * under the terms of the GNU Public License. | |
6 | */ | |
7 | ||
d1154eb4 | 8 | #include "config.h" |
3839e657 TT |
9 | #include <stdio.h> |
10 | #include <unistd.h> | |
11 | #include <stdlib.h> | |
12 | #include <ctype.h> | |
13 | #include <string.h> | |
14 | #include <time.h> | |
50e1e10f TT |
15 | #ifdef HAVE_ERRNO_H |
16 | #include <errno.h> | |
17 | #endif | |
3839e657 | 18 | #include <sys/types.h> |
3839e657 TT |
19 | |
20 | #include "debugfs.h" | |
21 | ||
22 | struct block_info { | |
048786d7 | 23 | blk64_t blk; |
b044c2e0 | 24 | ext2_ino_t ino; |
3839e657 TT |
25 | }; |
26 | ||
27 | struct block_walk_struct { | |
28 | struct block_info *barray; | |
89e25cfd AD |
29 | e2_blkcnt_t blocks_left; |
30 | e2_blkcnt_t num_blocks; | |
b044c2e0 | 31 | ext2_ino_t inode; |
3839e657 TT |
32 | }; |
33 | ||
54434927 | 34 | static int icheck_proc(ext2_filsys fs EXT2FS_ATTR((unused)), |
048786d7 | 35 | blk64_t *block_nr, |
54434927 | 36 | e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), |
048786d7 | 37 | blk64_t ref_block EXT2FS_ATTR((unused)), |
54434927 | 38 | int ref_offset EXT2FS_ATTR((unused)), |
50e1e10f | 39 | void *private) |
3839e657 TT |
40 | { |
41 | struct block_walk_struct *bw = (struct block_walk_struct *) private; | |
89e25cfd | 42 | e2_blkcnt_t i; |
3839e657 TT |
43 | |
44 | for (i=0; i < bw->num_blocks; i++) { | |
ed909bbe | 45 | if (!bw->barray[i].ino && bw->barray[i].blk == *block_nr) { |
3839e657 TT |
46 | bw->barray[i].ino = bw->inode; |
47 | bw->blocks_left--; | |
48 | } | |
49 | } | |
50 | if (!bw->blocks_left) | |
51 | return BLOCK_ABORT; | |
efc6f628 | 52 | |
3839e657 TT |
53 | return 0; |
54 | } | |
55 | ||
49125d40 | 56 | void do_icheck(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)), |
2fcbcb1b | 57 | void *infop EXT2FS_ATTR((unused))) |
3839e657 TT |
58 | { |
59 | struct block_walk_struct bw; | |
60 | struct block_info *binfo; | |
61 | int i; | |
62 | ext2_inode_scan scan = 0; | |
b044c2e0 | 63 | ext2_ino_t ino; |
3839e657 TT |
64 | struct ext2_inode inode; |
65 | errcode_t retval; | |
3839e657 | 66 | char *block_buf; |
efc6f628 | 67 | |
3839e657 TT |
68 | if (argc < 2) { |
69 | com_err(argv[0], 0, "Usage: icheck <block number> ..."); | |
70 | return; | |
71 | } | |
72 | if (check_fs_open(argv[0])) | |
73 | return; | |
74 | ||
75 | bw.barray = malloc(sizeof(struct block_info) * argc); | |
76 | if (!bw.barray) { | |
77 | com_err("icheck", ENOMEM, | |
78 | "while allocating inode info array"); | |
79 | return; | |
80 | } | |
81 | memset(bw.barray, 0, sizeof(struct block_info) * argc); | |
82 | ||
fc6d9d51 | 83 | block_buf = malloc(current_fs->blocksize * 3); |
3839e657 TT |
84 | if (!block_buf) { |
85 | com_err("icheck", ENOMEM, "while allocating block buffer"); | |
86 | goto error_out; | |
87 | } | |
88 | ||
89 | for (i=1; i < argc; i++) { | |
a25fffae | 90 | if (strtoblk(argv[0], argv[i], NULL, &bw.barray[i-1].blk)) |
2f1ecfa5 | 91 | goto error_out; |
3839e657 TT |
92 | } |
93 | ||
94 | bw.num_blocks = bw.blocks_left = argc-1; | |
95 | ||
fc6d9d51 | 96 | retval = ext2fs_open_inode_scan(current_fs, 0, &scan); |
3839e657 TT |
97 | if (retval) { |
98 | com_err("icheck", retval, "while opening inode scan"); | |
99 | goto error_out; | |
100 | } | |
101 | ||
643efb8a TT |
102 | do { |
103 | retval = ext2fs_get_next_inode(scan, &ino, &inode); | |
104 | } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); | |
3839e657 TT |
105 | if (retval) { |
106 | com_err("icheck", retval, "while starting inode scan"); | |
107 | goto error_out; | |
108 | } | |
efc6f628 | 109 | |
3839e657 | 110 | while (ino) { |
1d8f5ae3 AD |
111 | blk64_t blk; |
112 | ||
3839e657 TT |
113 | if (!inode.i_links_count) |
114 | goto next; | |
ed909bbe | 115 | |
6a2efe04 TT |
116 | bw.inode = ino; |
117 | ||
0c80c44b | 118 | blk = ext2fs_file_acl_block(current_fs, &inode); |
1d8f5ae3 | 119 | if (blk) { |
048786d7 | 120 | icheck_proc(current_fs, &blk, 0, |
0ccd488a | 121 | 0, 0, &bw); |
ed909bbe TT |
122 | if (bw.blocks_left == 0) |
123 | break; | |
0c80c44b | 124 | ext2fs_file_acl_block_set(current_fs, &inode, blk); |
ed909bbe TT |
125 | } |
126 | ||
0c80c44b | 127 | if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode)) |
ce5ee995 | 128 | goto next; |
3839e657 TT |
129 | /* |
130 | * To handle filesystems touched by 0.3c extfs; can be | |
131 | * removed later. | |
132 | */ | |
133 | if (inode.i_dtime) | |
134 | goto next; | |
135 | ||
048786d7 | 136 | retval = ext2fs_block_iterate3(current_fs, ino, |
43323be9 | 137 | BLOCK_FLAG_READ_ONLY, block_buf, |
89e25cfd | 138 | icheck_proc, &bw); |
3839e657 TT |
139 | if (retval) { |
140 | com_err("icheck", retval, | |
89e25cfd | 141 | "while calling ext2fs_block_iterate"); |
3839e657 TT |
142 | goto next; |
143 | } | |
144 | ||
145 | if (bw.blocks_left == 0) | |
146 | break; | |
147 | ||
148 | next: | |
643efb8a TT |
149 | do { |
150 | retval = ext2fs_get_next_inode(scan, &ino, &inode); | |
151 | } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); | |
3839e657 TT |
152 | if (retval) { |
153 | com_err("icheck", retval, | |
154 | "while doing inode scan"); | |
155 | goto error_out; | |
156 | } | |
157 | } | |
158 | ||
159 | printf("Block\tInode number\n"); | |
160 | for (i=0, binfo = bw.barray; i < bw.num_blocks; i++, binfo++) { | |
161 | if (binfo->ino == 0) { | |
33b9a60c TT |
162 | printf("%llu\t<block not found>\n", |
163 | (unsigned long long) binfo->blk); | |
3839e657 TT |
164 | continue; |
165 | } | |
33b9a60c TT |
166 | printf("%llu\t%u\n", (unsigned long long) binfo->blk, |
167 | binfo->ino); | |
3839e657 TT |
168 | } |
169 | ||
170 | error_out: | |
171 | free(bw.barray); | |
45e338f5 | 172 | free(block_buf); |
3839e657 TT |
173 | if (scan) |
174 | ext2fs_close_inode_scan(scan); | |
175 | return; | |
176 | } |