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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * badblocks.c --- replace/append bad blocks to the bad block inode | |
3 | * | |
4 | * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be | |
5 | * redistributed under the terms of the GNU Public License. | |
6 | */ | |
7 | ||
8 | #include <time.h> | |
50e1e10f TT |
9 | #ifdef HAVE_ERRNO_H |
10 | #include <errno.h> | |
11 | #endif | |
3839e657 TT |
12 | |
13 | #include <et/com_err.h> | |
14 | #include "e2fsck.h" | |
15 | ||
f3db3566 TT |
16 | static int check_bb_inode_blocks(ext2_filsys fs, blk_t *block_nr, int blockcnt, |
17 | void *private); | |
18 | ||
19 | ||
3839e657 TT |
20 | static void invalid_block(ext2_filsys fs, blk_t blk) |
21 | { | |
50e1e10f | 22 | printf("Bad block %u out of range; ignored.\n", blk); |
3839e657 TT |
23 | return; |
24 | } | |
25 | ||
1b6bf175 | 26 | void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file, |
3839e657 TT |
27 | int replace_bad_blocks) |
28 | { | |
1b6bf175 | 29 | ext2_filsys fs = ctx->fs; |
3839e657 TT |
30 | errcode_t retval; |
31 | badblocks_list bb_list = 0; | |
32 | FILE *f; | |
74becf3c | 33 | char buf[1024]; |
3839e657 | 34 | |
f8188fff | 35 | e2fsck_read_bitmaps(ctx); |
f3db3566 TT |
36 | |
37 | /* | |
38 | * Make sure the bad block inode is sane. If there are any | |
39 | * illegal blocks, clear them. | |
40 | */ | |
41 | retval = ext2fs_block_iterate(fs, EXT2_BAD_INO, 0, 0, | |
42 | check_bb_inode_blocks, 0); | |
43 | if (retval) { | |
44 | com_err("ext2fs_block_iterate", retval, | |
45 | "while sanity checking the bad blocks inode"); | |
f8188fff | 46 | goto fatal; |
f3db3566 TT |
47 | } |
48 | ||
3839e657 TT |
49 | /* |
50 | * If we're appending to the bad blocks inode, read in the | |
51 | * current bad blocks. | |
52 | */ | |
53 | if (!replace_bad_blocks) { | |
54 | retval = ext2fs_read_bb_inode(fs, &bb_list); | |
55 | if (retval) { | |
56 | com_err("ext2fs_read_bb_inode", retval, | |
57 | "while reading the bad blocks inode"); | |
f8188fff | 58 | goto fatal; |
3839e657 TT |
59 | } |
60 | } | |
61 | ||
62 | /* | |
74becf3c TT |
63 | * Now read in the bad blocks from the file; if |
64 | * bad_blocks_file is null, then try to run the badblocks | |
65 | * command. | |
3839e657 | 66 | */ |
74becf3c TT |
67 | if (bad_blocks_file) { |
68 | f = fopen(bad_blocks_file, "r"); | |
69 | if (!f) { | |
70 | com_err("read_bad_blocks_file", errno, | |
71 | "while trying to open %s", bad_blocks_file); | |
f8188fff | 72 | goto fatal; |
74becf3c TT |
73 | } |
74 | } else { | |
f635d7f6 | 75 | sprintf(buf, "badblocks -b %d %s%s %d", fs->blocksize, |
1b6bf175 TT |
76 | (ctx->options & E2F_OPT_PREEN) ? "" : "-s ", |
77 | fs->device_name, fs->super->s_blocks_count); | |
74becf3c TT |
78 | f = popen(buf, "r"); |
79 | if (!f) { | |
80 | com_err("read_bad_blocks_file", errno, | |
81 | "while trying popen '%s'", buf); | |
f8188fff | 82 | goto fatal; |
74becf3c | 83 | } |
3839e657 TT |
84 | } |
85 | retval = ext2fs_read_bb_FILE(fs, f, &bb_list, invalid_block); | |
74becf3c TT |
86 | if (bad_blocks_file) |
87 | fclose(f); | |
88 | else | |
89 | pclose(f); | |
3839e657 TT |
90 | if (retval) { |
91 | com_err("ext2fs_read_bb_FILE", retval, | |
92 | "while reading in list of bad blocks from file"); | |
f8188fff | 93 | goto fatal; |
3839e657 TT |
94 | } |
95 | ||
96 | /* | |
97 | * Finally, update the bad blocks from the bad_block_map | |
98 | */ | |
99 | retval = ext2fs_update_bb_inode(fs, bb_list); | |
100 | if (retval) { | |
101 | com_err("ext2fs_update_bb_inode", retval, | |
102 | "while updating bad block inode"); | |
f8188fff | 103 | goto fatal; |
3839e657 TT |
104 | } |
105 | ||
106 | badblocks_list_free(bb_list); | |
107 | return; | |
f8188fff TT |
108 | |
109 | fatal: | |
110 | ctx->flags |= E2F_FLAG_ABORT; | |
111 | return; | |
112 | ||
3839e657 TT |
113 | } |
114 | ||
1b6bf175 | 115 | void test_disk(e2fsck_t ctx) |
74becf3c | 116 | { |
1b6bf175 | 117 | read_bad_blocks_file(ctx, 0, 1); |
74becf3c TT |
118 | } |
119 | ||
f3db3566 TT |
120 | static int check_bb_inode_blocks(ext2_filsys fs, blk_t *block_nr, int blockcnt, |
121 | void *private) | |
122 | { | |
123 | if (!*block_nr) | |
124 | return 0; | |
125 | ||
126 | /* | |
127 | * If the block number is outrageous, clear it and ignore it. | |
128 | */ | |
129 | if (*block_nr >= fs->super->s_blocks_count || | |
130 | *block_nr < fs->super->s_first_data_block) { | |
50e1e10f | 131 | printf("Warning illegal block %u found in bad block inode. Cleared.\n", *block_nr); |
f3db3566 TT |
132 | *block_nr = 0; |
133 | return BLOCK_CHANGED; | |
134 | } | |
135 | ||
136 | return 0; | |
137 | } | |
138 |