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3839e657 TT |
1 | /* |
2 | * e2fsck.h | |
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 | ||
9 | #include <stdio.h> | |
10 | #include <string.h> | |
11 | #include <unistd.h> | |
12 | #include <stdlib.h> | |
3839e657 TT |
13 | #include <sys/types.h> |
14 | #include <sys/time.h> | |
15 | ||
50e1e10f | 16 | #ifdef HAVE_LINUX_FS_H |
3839e657 | 17 | #include <linux/fs.h> |
50e1e10f | 18 | #endif |
3839e657 TT |
19 | #include <linux/ext2_fs.h> |
20 | ||
21 | #include "ext2fs/ext2fs.h" | |
22 | ||
23 | #ifdef __STDC__ | |
24 | #define NOARGS void | |
25 | #else | |
26 | #define NOARGS | |
27 | #define const | |
28 | #endif | |
29 | ||
30 | /* | |
31 | * Exit codes used by fsck-type programs | |
32 | */ | |
33 | #define FSCK_OK 0 /* No errors */ | |
34 | #define FSCK_NONDESTRUCT 1 /* File system errors corrected */ | |
35 | #define FSCK_REBOOT 2 /* System should be rebooted */ | |
36 | #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */ | |
37 | #define FSCK_ERROR 8 /* Operational error */ | |
38 | #define FSCK_USAGE 16 /* Usage or syntax error */ | |
39 | #define FSCK_LIBRARY 128 /* Shared library error */ | |
40 | ||
f3db3566 TT |
41 | /* |
42 | * The last ext2fs revision level that this version of e2fsck is able to | |
43 | * support | |
44 | */ | |
1e3472c5 | 45 | #define E2FSCK_CURRENT_REV 1 |
f3db3566 | 46 | |
3839e657 TT |
47 | /* |
48 | * Inode count arrays | |
49 | */ | |
21c84b71 TT |
50 | extern ext2_icount_t inode_count; |
51 | extern ext2_icount_t inode_link_info; | |
3839e657 TT |
52 | |
53 | /* | |
54 | * The directory information structure; stores directory information | |
55 | * collected in earlier passes, to avoid disk i/o in fetching the | |
21c84b71 | 56 | * directory information. |
3839e657 TT |
57 | */ |
58 | struct dir_info { | |
59 | ino_t ino; /* Inode number */ | |
60 | ino_t dotdot; /* Parent according to '..' */ | |
61 | ino_t parent; /* Parent according to treewalk */ | |
62 | }; | |
63 | ||
3839e657 TT |
64 | /* |
65 | * This structure is used for keeping track of how much resources have | |
66 | * been used for a particular pass of e2fsck. | |
67 | */ | |
68 | struct resource_track { | |
69 | struct timeval time_start; | |
70 | struct timeval user_start; | |
71 | struct timeval system_start; | |
72 | void *brk_start; | |
73 | }; | |
74 | ||
75 | /* | |
76 | * Variables | |
77 | */ | |
78 | extern const char * program_name; | |
79 | extern const char * device_name; | |
80 | ||
f3db3566 TT |
81 | extern ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */ |
82 | extern ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */ | |
83 | extern ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */ | |
21c84b71 | 84 | extern ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */ |
3839e657 | 85 | |
f3db3566 TT |
86 | extern ext2fs_block_bitmap block_found_map; /* Blocks which are in use */ |
87 | extern ext2fs_block_bitmap block_dup_map; /* Blocks which are used by more than once */ | |
521e3685 | 88 | extern ext2fs_block_bitmap block_illegal_map; /* Meta-data blocks */ |
3839e657 TT |
89 | |
90 | extern const char *fix_msg[2]; /* Fixed or ignored! */ | |
91 | extern const char *clear_msg[2]; /* Cleared or ignored! */ | |
92 | ||
f3db3566 TT |
93 | extern int *invalid_inode_bitmap; |
94 | extern int *invalid_block_bitmap; | |
95 | extern int *invalid_inode_table; | |
96 | extern int restart_e2fsck; | |
97 | ||
3839e657 TT |
98 | /* Command line options */ |
99 | extern int nflag; | |
100 | extern int yflag; | |
101 | extern int tflag; | |
102 | extern int preen; | |
103 | extern int verbose; | |
104 | extern int list; | |
105 | extern int debug; | |
106 | extern int force; | |
107 | ||
108 | extern int rwflag; | |
109 | ||
110 | extern int inode_buffer_blocks; | |
111 | extern int process_inode_size; | |
112 | extern int directory_blocks; | |
113 | ||
114 | extern int no_bad_inode; | |
115 | extern int no_lpf; | |
116 | extern int lpf_corrupted; | |
117 | ||
118 | /* Files counts */ | |
119 | extern int fs_directory_count; | |
120 | extern int fs_regular_count; | |
121 | extern int fs_blockdev_count; | |
122 | extern int fs_chardev_count; | |
123 | extern int fs_links_count; | |
124 | extern int fs_symlinks_count; | |
125 | extern int fs_fast_symlinks_count; | |
126 | extern int fs_fifo_count; | |
127 | extern int fs_total_count; | |
128 | extern int fs_badblocks_count; | |
129 | extern int fs_sockets_count; | |
50e1e10f TT |
130 | extern int fs_ind_count; |
131 | extern int fs_dind_count; | |
132 | extern int fs_tind_count; | |
74becf3c | 133 | extern int fs_fragmented; |
3839e657 TT |
134 | |
135 | extern struct resource_track global_rtrack; | |
136 | ||
f3db3566 TT |
137 | extern int invalid_bitmaps; |
138 | ||
1e3472c5 TT |
139 | /* |
140 | * For pass1_check_directory and pass1_get_blocks | |
141 | */ | |
142 | extern ino_t stashed_ino; | |
143 | extern struct ext2_inode *stashed_inode; | |
144 | ||
3839e657 TT |
145 | /* |
146 | * Procedure declarations | |
147 | */ | |
148 | ||
149 | extern void pass1(ext2_filsys fs); | |
150 | extern void pass1_dupblocks(ext2_filsys fs, char *block_buf); | |
151 | extern void pass2(ext2_filsys fs); | |
152 | extern void pass3(ext2_filsys fs); | |
153 | extern void pass4(ext2_filsys fs); | |
154 | extern void pass5(ext2_filsys fs); | |
155 | ||
1e3472c5 TT |
156 | /* pass1.c */ |
157 | extern errcode_t pass1_check_directory(ext2_filsys fs, ino_t ino); | |
158 | extern errcode_t pass1_get_blocks(ext2_filsys fs, ino_t ino, blk_t *blocks); | |
159 | extern errcode_t pass1_read_inode(ext2_filsys fs, ino_t ino, | |
160 | struct ext2_inode *inode); | |
161 | extern errcode_t pass1_write_inode(ext2_filsys fs, ino_t ino, | |
162 | struct ext2_inode *inode); | |
163 | ||
3839e657 TT |
164 | /* badblock.c */ |
165 | extern void read_bad_blocks_file(ext2_filsys fs, const char *bad_blocks_file, | |
166 | int replace_bad_blocks); | |
167 | extern void test_disk(ext2_filsys fs); | |
168 | ||
169 | /* dirinfo.c */ | |
21c84b71 | 170 | extern void add_dir_info(ext2_filsys fs, ino_t ino, ino_t parent); |
3839e657 TT |
171 | extern struct dir_info *get_dir_info(ino_t ino); |
172 | extern void free_dir_info(ext2_filsys fs); | |
173 | extern int get_num_dirs(ext2_filsys fs); | |
21c84b71 | 174 | extern struct dir_info *dir_info_iter(int *control); |
3839e657 TT |
175 | |
176 | /* ehandler.c */ | |
177 | extern const char *ehandler_operation(const char *op); | |
178 | extern void ehandler_init(io_channel channel); | |
179 | ||
1e3472c5 TT |
180 | /* swapfs.c */ |
181 | void swap_filesys(ext2_filsys fs); | |
182 | ||
3839e657 TT |
183 | /* util.c */ |
184 | extern void *allocate_memory(int size, const char *description); | |
185 | extern int ask(const char * string, int def); | |
186 | extern int ask_yn(const char * string, int def); | |
187 | extern void fatal_error (const char * fmt_string); | |
188 | extern void read_bitmaps(ext2_filsys fs); | |
189 | extern void write_bitmaps(ext2_filsys fs); | |
50e1e10f | 190 | extern void preenhalt(ext2_filsys fs); |
3839e657 TT |
191 | extern void print_resource_track(struct resource_track *track); |
192 | extern void init_resource_track(struct resource_track *track); | |
193 | extern int inode_has_valid_blocks(struct ext2_inode *inode); | |
f3db3566 TT |
194 | extern void e2fsck_read_inode(ext2_filsys fs, unsigned long ino, |
195 | struct ext2_inode * inode, const char * proc); | |
196 | extern void e2fsck_write_inode(ext2_filsys fs, unsigned long ino, | |
197 | struct ext2_inode * inode, const char * proc); | |
3839e657 TT |
198 | #ifdef MTRACE |
199 | extern void mtrace_print(char *mesg); | |
200 | #endif | |
201 | ||
202 | #define die(str) fatal_error(str) | |
203 | ||
204 | /* | |
205 | * pass3.c | |
206 | */ | |
207 | extern int reconnect_file(ext2_filsys fs, ino_t inode); |