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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 | ||
56 | void do_icheck(int argc, char **argv) | |
57 | { | |
58 | struct block_walk_struct bw; | |
59 | struct block_info *binfo; | |
60 | int i; | |
61 | ext2_inode_scan scan = 0; | |
b044c2e0 | 62 | ext2_ino_t ino; |
3839e657 TT |
63 | struct ext2_inode inode; |
64 | errcode_t retval; | |
3839e657 | 65 | char *block_buf; |
efc6f628 | 66 | |
3839e657 TT |
67 | if (argc < 2) { |
68 | com_err(argv[0], 0, "Usage: icheck <block number> ..."); | |
69 | return; | |
70 | } | |
71 | if (check_fs_open(argv[0])) | |
72 | return; | |
73 | ||
74 | bw.barray = malloc(sizeof(struct block_info) * argc); | |
75 | if (!bw.barray) { | |
76 | com_err("icheck", ENOMEM, | |
77 | "while allocating inode info array"); | |
78 | return; | |
79 | } | |
80 | memset(bw.barray, 0, sizeof(struct block_info) * argc); | |
81 | ||
fc6d9d51 | 82 | block_buf = malloc(current_fs->blocksize * 3); |
3839e657 TT |
83 | if (!block_buf) { |
84 | com_err("icheck", ENOMEM, "while allocating block buffer"); | |
85 | goto error_out; | |
86 | } | |
87 | ||
88 | for (i=1; i < argc; i++) { | |
a25fffae | 89 | if (strtoblk(argv[0], argv[i], NULL, &bw.barray[i-1].blk)) |
2f1ecfa5 | 90 | goto error_out; |
3839e657 TT |
91 | } |
92 | ||
93 | bw.num_blocks = bw.blocks_left = argc-1; | |
94 | ||
fc6d9d51 | 95 | retval = ext2fs_open_inode_scan(current_fs, 0, &scan); |
3839e657 TT |
96 | if (retval) { |
97 | com_err("icheck", retval, "while opening inode scan"); | |
98 | goto error_out; | |
99 | } | |
100 | ||
643efb8a TT |
101 | do { |
102 | retval = ext2fs_get_next_inode(scan, &ino, &inode); | |
103 | } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); | |
3839e657 TT |
104 | if (retval) { |
105 | com_err("icheck", retval, "while starting inode scan"); | |
106 | goto error_out; | |
107 | } | |
efc6f628 | 108 | |
3839e657 | 109 | while (ino) { |
1d8f5ae3 AD |
110 | blk64_t blk; |
111 | ||
3839e657 TT |
112 | if (!inode.i_links_count) |
113 | goto next; | |
ed909bbe | 114 | |
6a2efe04 TT |
115 | bw.inode = ino; |
116 | ||
0c80c44b | 117 | blk = ext2fs_file_acl_block(current_fs, &inode); |
1d8f5ae3 | 118 | if (blk) { |
048786d7 | 119 | icheck_proc(current_fs, &blk, 0, |
0ccd488a | 120 | 0, 0, &bw); |
ed909bbe TT |
121 | if (bw.blocks_left == 0) |
122 | break; | |
0c80c44b | 123 | ext2fs_file_acl_block_set(current_fs, &inode, blk); |
ed909bbe TT |
124 | } |
125 | ||
0c80c44b | 126 | if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode)) |
ce5ee995 | 127 | goto next; |
3839e657 TT |
128 | /* |
129 | * To handle filesystems touched by 0.3c extfs; can be | |
130 | * removed later. | |
131 | */ | |
132 | if (inode.i_dtime) | |
133 | goto next; | |
134 | ||
048786d7 | 135 | retval = ext2fs_block_iterate3(current_fs, ino, |
43323be9 | 136 | BLOCK_FLAG_READ_ONLY, block_buf, |
89e25cfd | 137 | icheck_proc, &bw); |
3839e657 TT |
138 | if (retval) { |
139 | com_err("icheck", retval, | |
89e25cfd | 140 | "while calling ext2fs_block_iterate"); |
3839e657 TT |
141 | goto next; |
142 | } | |
143 | ||
144 | if (bw.blocks_left == 0) | |
145 | break; | |
146 | ||
147 | next: | |
643efb8a TT |
148 | do { |
149 | retval = ext2fs_get_next_inode(scan, &ino, &inode); | |
150 | } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE); | |
3839e657 TT |
151 | if (retval) { |
152 | com_err("icheck", retval, | |
153 | "while doing inode scan"); | |
154 | goto error_out; | |
155 | } | |
156 | } | |
157 | ||
158 | printf("Block\tInode number\n"); | |
159 | for (i=0, binfo = bw.barray; i < bw.num_blocks; i++, binfo++) { | |
160 | if (binfo->ino == 0) { | |
048786d7 | 161 | printf("%llu\t<block not found>\n", binfo->blk); |
3839e657 TT |
162 | continue; |
163 | } | |
048786d7 | 164 | printf("%llu\t%u\n", binfo->blk, binfo->ino); |
3839e657 TT |
165 | } |
166 | ||
167 | error_out: | |
168 | free(bw.barray); | |
45e338f5 | 169 | free(block_buf); |
3839e657 TT |
170 | if (scan) |
171 | ext2fs_close_inode_scan(scan); | |
172 | return; | |
173 | } |