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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * e2fsck.c - a consistency checker for the new extended file system. | |
efc6f628 | 3 | * |
21c84b71 TT |
4 | * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o. |
5 | * | |
6 | * %Begin-Header% | |
7 | * This file may be redistributed under the terms of the GNU Public | |
8 | * License. | |
9 | * %End-Header% | |
3839e657 TT |
10 | */ |
11 | ||
d1154eb4 | 12 | #include "config.h" |
50e1e10f | 13 | #include <errno.h> |
3839e657 | 14 | |
3839e657 | 15 | #include "e2fsck.h" |
21c84b71 | 16 | #include "problem.h" |
3839e657 TT |
17 | |
18 | /* | |
efc6f628 | 19 | * This function allocates an e2fsck context |
3839e657 | 20 | */ |
1b6bf175 | 21 | errcode_t e2fsck_allocate_context(e2fsck_t *ret) |
3839e657 | 22 | { |
1b6bf175 | 23 | e2fsck_t context; |
08b21301 | 24 | errcode_t retval; |
1f3ad14a | 25 | char *time_env; |
3839e657 | 26 | |
c4e3d3f3 | 27 | retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &context); |
08b21301 TT |
28 | if (retval) |
29 | return retval; | |
efc6f628 | 30 | |
1b6bf175 | 31 | memset(context, 0, sizeof(struct e2fsck_struct)); |
3839e657 | 32 | |
1b6bf175 | 33 | context->process_inode_size = 256; |
0684a4f3 | 34 | context->ext_attr_ver = 2; |
9f0288d3 | 35 | context->blocks_per_page = 1; |
7dca4c88 | 36 | context->htree_slack_percentage = 255; |
efc6f628 | 37 | |
1f3ad14a TT |
38 | time_env = getenv("E2FSCK_TIME"); |
39 | if (time_env) | |
40 | context->now = strtoul(time_env, NULL, 0); | |
177839e2 | 41 | else { |
1f3ad14a | 42 | context->now = time(0); |
177839e2 TT |
43 | if (context->now < 1262322000) /* January 1 2010 */ |
44 | context->flags |= E2F_FLAG_TIME_INSANE; | |
45 | } | |
3839e657 | 46 | |
1b6bf175 TT |
47 | *ret = context; |
48 | return 0; | |
3839e657 | 49 | } |
521e3685 | 50 | |
1b6bf175 TT |
51 | /* |
52 | * This function resets an e2fsck context; it is called when e2fsck | |
53 | * needs to be restarted. | |
54 | */ | |
55 | errcode_t e2fsck_reset_context(e2fsck_t ctx) | |
3839e657 | 56 | { |
8da6d1a1 TT |
57 | int i; |
58 | ||
177839e2 | 59 | ctx->flags &= E2F_RESET_FLAGS; |
850d05e9 TT |
60 | ctx->lost_and_found = 0; |
61 | ctx->bad_lost_and_found = 0; | |
1b6bf175 TT |
62 | if (ctx->inode_used_map) { |
63 | ext2fs_free_inode_bitmap(ctx->inode_used_map); | |
64 | ctx->inode_used_map = 0; | |
5c576477 | 65 | } |
1b6bf175 TT |
66 | if (ctx->inode_dir_map) { |
67 | ext2fs_free_inode_bitmap(ctx->inode_dir_map); | |
68 | ctx->inode_dir_map = 0; | |
3839e657 | 69 | } |
aa4115a4 TT |
70 | if (ctx->inode_reg_map) { |
71 | ext2fs_free_inode_bitmap(ctx->inode_reg_map); | |
7142db08 | 72 | ctx->inode_reg_map = 0; |
aa4115a4 | 73 | } |
1b6bf175 TT |
74 | if (ctx->block_found_map) { |
75 | ext2fs_free_block_bitmap(ctx->block_found_map); | |
76 | ctx->block_found_map = 0; | |
21c84b71 | 77 | } |
1b6bf175 TT |
78 | if (ctx->inode_link_info) { |
79 | ext2fs_free_icount(ctx->inode_link_info); | |
80 | ctx->inode_link_info = 0; | |
3839e657 | 81 | } |
adee8d75 | 82 | if (ctx->journal_io) { |
1e16526b | 83 | if (ctx->fs && ctx->fs->io != ctx->journal_io) |
adee8d75 TT |
84 | io_channel_close(ctx->journal_io); |
85 | ctx->journal_io = 0; | |
86 | } | |
1dde43f0 | 87 | if (ctx->fs && ctx->fs->dblist) { |
1b6bf175 TT |
88 | ext2fs_free_dblist(ctx->fs->dblist); |
89 | ctx->fs->dblist = 0; | |
21c84b71 | 90 | } |
08b21301 | 91 | e2fsck_free_dir_info(ctx); |
8fdc9985 TT |
92 | #ifdef ENABLE_HTREE |
93 | e2fsck_free_dx_dir_info(ctx); | |
94 | #endif | |
342d847d TT |
95 | if (ctx->refcount) { |
96 | ea_refcount_free(ctx->refcount); | |
97 | ctx->refcount = 0; | |
98 | } | |
99 | if (ctx->refcount_extra) { | |
100 | ea_refcount_free(ctx->refcount_extra); | |
101 | ctx->refcount_extra = 0; | |
102 | } | |
1b6bf175 TT |
103 | if (ctx->block_dup_map) { |
104 | ext2fs_free_block_bitmap(ctx->block_dup_map); | |
105 | ctx->block_dup_map = 0; | |
f3db3566 | 106 | } |
342d847d TT |
107 | if (ctx->block_ea_map) { |
108 | ext2fs_free_block_bitmap(ctx->block_ea_map); | |
109 | ctx->block_ea_map = 0; | |
110 | } | |
1b6bf175 TT |
111 | if (ctx->inode_bb_map) { |
112 | ext2fs_free_inode_bitmap(ctx->inode_bb_map); | |
113 | ctx->inode_bb_map = 0; | |
521e3685 | 114 | } |
1b6bf175 TT |
115 | if (ctx->inode_bad_map) { |
116 | ext2fs_free_inode_bitmap(ctx->inode_bad_map); | |
117 | ctx->inode_bad_map = 0; | |
1e3472c5 | 118 | } |
aa4115a4 TT |
119 | if (ctx->inode_imagic_map) { |
120 | ext2fs_free_inode_bitmap(ctx->inode_imagic_map); | |
121 | ctx->inode_imagic_map = 0; | |
122 | } | |
b7a00563 TT |
123 | if (ctx->dirs_to_hash) { |
124 | ext2fs_u32_list_free(ctx->dirs_to_hash); | |
125 | ctx->dirs_to_hash = 0; | |
126 | } | |
1e3472c5 | 127 | |
3839e657 | 128 | /* |
1b6bf175 | 129 | * Clear the array of invalid meta-data flags |
3839e657 | 130 | */ |
1b6bf175 | 131 | if (ctx->invalid_inode_bitmap_flag) { |
c4e3d3f3 | 132 | ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag); |
1b6bf175 TT |
133 | ctx->invalid_inode_bitmap_flag = 0; |
134 | } | |
135 | if (ctx->invalid_block_bitmap_flag) { | |
c4e3d3f3 | 136 | ext2fs_free_mem(&ctx->invalid_block_bitmap_flag); |
1b6bf175 TT |
137 | ctx->invalid_block_bitmap_flag = 0; |
138 | } | |
139 | if (ctx->invalid_inode_table_flag) { | |
c4e3d3f3 | 140 | ext2fs_free_mem(&ctx->invalid_inode_table_flag); |
1b6bf175 TT |
141 | ctx->invalid_inode_table_flag = 0; |
142 | } | |
143 | ||
144 | /* Clear statistic counters */ | |
145 | ctx->fs_directory_count = 0; | |
146 | ctx->fs_regular_count = 0; | |
147 | ctx->fs_blockdev_count = 0; | |
148 | ctx->fs_chardev_count = 0; | |
149 | ctx->fs_links_count = 0; | |
150 | ctx->fs_symlinks_count = 0; | |
151 | ctx->fs_fast_symlinks_count = 0; | |
152 | ctx->fs_fifo_count = 0; | |
153 | ctx->fs_total_count = 0; | |
154 | ctx->fs_badblocks_count = 0; | |
155 | ctx->fs_sockets_count = 0; | |
156 | ctx->fs_ind_count = 0; | |
157 | ctx->fs_dind_count = 0; | |
158 | ctx->fs_tind_count = 0; | |
159 | ctx->fs_fragmented = 0; | |
ce44d8ca | 160 | ctx->fs_fragmented_dir = 0; |
246501c6 | 161 | ctx->large_files = 0; |
1b6bf175 | 162 | |
8da6d1a1 TT |
163 | for (i=0; i < MAX_EXTENT_DEPTH_COUNT; i++) |
164 | ctx->extent_depth_count[i] = 0; | |
165 | ||
1b6bf175 TT |
166 | /* Reset the superblock to the user's requested value */ |
167 | ctx->superblock = ctx->use_superblock; | |
efc6f628 | 168 | |
1b6bf175 TT |
169 | return 0; |
170 | } | |
3839e657 | 171 | |
1b6bf175 TT |
172 | void e2fsck_free_context(e2fsck_t ctx) |
173 | { | |
174 | if (!ctx) | |
175 | return; | |
efc6f628 | 176 | |
1b6bf175 | 177 | e2fsck_reset_context(ctx); |
f364093b TT |
178 | if (ctx->blkid) |
179 | blkid_put_cache(ctx->blkid); | |
1017f651 TT |
180 | |
181 | if (ctx->profile) | |
182 | profile_release(ctx->profile); | |
1dc506cb TT |
183 | |
184 | if (ctx->filesystem_name) | |
185 | ext2fs_free_mem(&ctx->filesystem_name); | |
efc6f628 | 186 | |
1dc506cb TT |
187 | if (ctx->device_name) |
188 | ext2fs_free_mem(&ctx->device_name); | |
efc6f628 | 189 | |
c4e3d3f3 | 190 | ext2fs_free_mem(&ctx); |
3839e657 | 191 | } |
08b21301 TT |
192 | |
193 | /* | |
194 | * This function runs through the e2fsck passes and calls them all, | |
195 | * returning restart, abort, or cancel as necessary... | |
196 | */ | |
197 | typedef void (*pass_t)(e2fsck_t ctx); | |
198 | ||
199 | pass_t e2fsck_passes[] = { | |
200 | e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4, | |
201 | e2fsck_pass5, 0 }; | |
202 | ||
2df1f6aa TT |
203 | #define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK|E2F_FLAG_RESTART) |
204 | ||
08b21301 TT |
205 | int e2fsck_run(e2fsck_t ctx) |
206 | { | |
207 | int i; | |
208 | pass_t e2fsck_pass; | |
209 | ||
210 | #ifdef HAVE_SETJMP_H | |
bbbc92f2 TT |
211 | if (setjmp(ctx->abort_loc)) { |
212 | ctx->flags &= ~E2F_FLAG_SETJMP_OK; | |
2df1f6aa | 213 | return (ctx->flags & E2F_FLAG_RUN_RETURN); |
bbbc92f2 | 214 | } |
08b21301 TT |
215 | ctx->flags |= E2F_FLAG_SETJMP_OK; |
216 | #endif | |
efc6f628 | 217 | |
08b21301 | 218 | for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) { |
2df1f6aa | 219 | if (ctx->flags & E2F_FLAG_RUN_RETURN) |
08b21301 | 220 | break; |
0f5eba75 AD |
221 | if (e2fsck_mmp_update(ctx->fs)) |
222 | fatal_error(ctx, 0); | |
08b21301 | 223 | e2fsck_pass(ctx); |
f75c28de TT |
224 | if (ctx->progress) |
225 | (void) (ctx->progress)(ctx, 0, 0, 0); | |
08b21301 TT |
226 | } |
227 | ctx->flags &= ~E2F_FLAG_SETJMP_OK; | |
efc6f628 | 228 | |
2df1f6aa TT |
229 | if (ctx->flags & E2F_FLAG_RUN_RETURN) |
230 | return (ctx->flags & E2F_FLAG_RUN_RETURN); | |
08b21301 TT |
231 | return 0; |
232 | } |