2 * e2fsck.c - a consistency checker for the new extended file system.
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
19 * This function allocates an e2fsck context
21 errcode_t e2fsck_allocate_context(e2fsck_t *ret)
27 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &context);
31 memset(context, 0, sizeof(struct e2fsck_struct));
33 context->process_inode_size = 256;
34 context->ext_attr_ver = 2;
35 context->blocks_per_page = 1;
36 context->htree_slack_percentage = 255;
38 time_env = getenv("E2FSCK_TIME");
40 context->now = strtoul(time_env, NULL, 0);
42 context->now = time(0);
43 if (context->now < 1262322000) /* January 1 2010 */
44 context->flags |= E2F_FLAG_TIME_INSANE;
52 * This function resets an e2fsck context; it is called when e2fsck
53 * needs to be restarted.
55 errcode_t e2fsck_reset_context(e2fsck_t ctx)
59 ctx->flags &= E2F_RESET_FLAGS;
60 ctx->lost_and_found = 0;
61 ctx->bad_lost_and_found = 0;
62 if (ctx->inode_used_map) {
63 ext2fs_free_inode_bitmap(ctx->inode_used_map);
64 ctx->inode_used_map = 0;
66 if (ctx->inode_dir_map) {
67 ext2fs_free_inode_bitmap(ctx->inode_dir_map);
68 ctx->inode_dir_map = 0;
70 if (ctx->inode_reg_map) {
71 ext2fs_free_inode_bitmap(ctx->inode_reg_map);
72 ctx->inode_reg_map = 0;
74 if (ctx->block_found_map) {
75 ext2fs_free_block_bitmap(ctx->block_found_map);
76 ctx->block_found_map = 0;
78 if (ctx->inode_link_info) {
79 ext2fs_free_icount(ctx->inode_link_info);
80 ctx->inode_link_info = 0;
82 if (ctx->journal_io) {
83 if (ctx->fs && ctx->fs->io != ctx->journal_io)
84 io_channel_close(ctx->journal_io);
87 if (ctx->fs && ctx->fs->dblist) {
88 ext2fs_free_dblist(ctx->fs->dblist);
91 e2fsck_free_dir_info(ctx);
93 e2fsck_free_dx_dir_info(ctx);
96 ea_refcount_free(ctx->refcount);
99 if (ctx->refcount_extra) {
100 ea_refcount_free(ctx->refcount_extra);
101 ctx->refcount_extra = 0;
103 if (ctx->block_dup_map) {
104 ext2fs_free_block_bitmap(ctx->block_dup_map);
105 ctx->block_dup_map = 0;
107 if (ctx->block_ea_map) {
108 ext2fs_free_block_bitmap(ctx->block_ea_map);
109 ctx->block_ea_map = 0;
111 if (ctx->block_metadata_map) {
112 ext2fs_free_block_bitmap(ctx->block_metadata_map);
113 ctx->block_metadata_map = 0;
115 if (ctx->inode_bb_map) {
116 ext2fs_free_inode_bitmap(ctx->inode_bb_map);
117 ctx->inode_bb_map = 0;
119 if (ctx->inode_bad_map) {
120 ext2fs_free_inode_bitmap(ctx->inode_bad_map);
121 ctx->inode_bad_map = 0;
123 if (ctx->inode_imagic_map) {
124 ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
125 ctx->inode_imagic_map = 0;
127 if (ctx->dirs_to_hash) {
128 ext2fs_u32_list_free(ctx->dirs_to_hash);
129 ctx->dirs_to_hash = 0;
133 * Clear the array of invalid meta-data flags
135 if (ctx->invalid_inode_bitmap_flag) {
136 ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag);
137 ctx->invalid_inode_bitmap_flag = 0;
139 if (ctx->invalid_block_bitmap_flag) {
140 ext2fs_free_mem(&ctx->invalid_block_bitmap_flag);
141 ctx->invalid_block_bitmap_flag = 0;
143 if (ctx->invalid_inode_table_flag) {
144 ext2fs_free_mem(&ctx->invalid_inode_table_flag);
145 ctx->invalid_inode_table_flag = 0;
148 /* Clear statistic counters */
149 ctx->fs_directory_count = 0;
150 ctx->fs_regular_count = 0;
151 ctx->fs_blockdev_count = 0;
152 ctx->fs_chardev_count = 0;
153 ctx->fs_links_count = 0;
154 ctx->fs_symlinks_count = 0;
155 ctx->fs_fast_symlinks_count = 0;
156 ctx->fs_fifo_count = 0;
157 ctx->fs_total_count = 0;
158 ctx->fs_badblocks_count = 0;
159 ctx->fs_sockets_count = 0;
160 ctx->fs_ind_count = 0;
161 ctx->fs_dind_count = 0;
162 ctx->fs_tind_count = 0;
163 ctx->fs_fragmented = 0;
164 ctx->fs_fragmented_dir = 0;
165 ctx->large_files = 0;
167 for (i=0; i < MAX_EXTENT_DEPTH_COUNT; i++)
168 ctx->extent_depth_count[i] = 0;
170 /* Reset the superblock to the user's requested value */
171 ctx->superblock = ctx->use_superblock;
176 void e2fsck_free_context(e2fsck_t ctx)
181 e2fsck_reset_context(ctx);
183 blkid_put_cache(ctx->blkid);
186 profile_release(ctx->profile);
188 if (ctx->filesystem_name)
189 ext2fs_free_mem(&ctx->filesystem_name);
191 if (ctx->device_name)
192 ext2fs_free_mem(&ctx->device_name);
197 ext2fs_free_mem(&ctx);
201 * This function runs through the e2fsck passes and calls them all,
202 * returning restart, abort, or cancel as necessary...
204 typedef void (*pass_t)(e2fsck_t ctx);
206 static pass_t e2fsck_passes[] = {
207 e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4,
210 #define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK|E2F_FLAG_RESTART)
212 int e2fsck_run(e2fsck_t ctx)
218 if (setjmp(ctx->abort_loc)) {
219 ctx->flags &= ~E2F_FLAG_SETJMP_OK;
220 return (ctx->flags & E2F_FLAG_RUN_RETURN);
222 ctx->flags |= E2F_FLAG_SETJMP_OK;
225 for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) {
226 if (ctx->flags & E2F_FLAG_RUN_RETURN)
228 if (e2fsck_mmp_update(ctx->fs))
232 (void) (ctx->progress)(ctx, 0, 0, 0);
234 ctx->flags &= ~E2F_FLAG_SETJMP_OK;
236 if (ctx->flags & E2F_FLAG_RUN_RETURN)
237 return (ctx->flags & E2F_FLAG_RUN_RETURN);