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->inode_bb_map) {
112 ext2fs_free_inode_bitmap(ctx->inode_bb_map);
113 ctx->inode_bb_map = 0;
115 if (ctx->inode_bad_map) {
116 ext2fs_free_inode_bitmap(ctx->inode_bad_map);
117 ctx->inode_bad_map = 0;
119 if (ctx->inode_imagic_map) {
120 ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
121 ctx->inode_imagic_map = 0;
123 if (ctx->dirs_to_hash) {
124 ext2fs_u32_list_free(ctx->dirs_to_hash);
125 ctx->dirs_to_hash = 0;
129 * Clear the array of invalid meta-data flags
131 if (ctx->invalid_inode_bitmap_flag) {
132 ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag);
133 ctx->invalid_inode_bitmap_flag = 0;
135 if (ctx->invalid_block_bitmap_flag) {
136 ext2fs_free_mem(&ctx->invalid_block_bitmap_flag);
137 ctx->invalid_block_bitmap_flag = 0;
139 if (ctx->invalid_inode_table_flag) {
140 ext2fs_free_mem(&ctx->invalid_inode_table_flag);
141 ctx->invalid_inode_table_flag = 0;
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;
160 ctx->fs_fragmented_dir = 0;
161 ctx->large_files = 0;
163 for (i=0; i < MAX_EXTENT_DEPTH_COUNT; i++)
164 ctx->extent_depth_count[i] = 0;
166 /* Reset the superblock to the user's requested value */
167 ctx->superblock = ctx->use_superblock;
172 void e2fsck_free_context(e2fsck_t ctx)
177 e2fsck_reset_context(ctx);
179 blkid_put_cache(ctx->blkid);
182 profile_release(ctx->profile);
184 if (ctx->filesystem_name)
185 ext2fs_free_mem(&ctx->filesystem_name);
187 if (ctx->device_name)
188 ext2fs_free_mem(&ctx->device_name);
193 ext2fs_free_mem(&ctx);
197 * This function runs through the e2fsck passes and calls them all,
198 * returning restart, abort, or cancel as necessary...
200 typedef void (*pass_t)(e2fsck_t ctx);
202 pass_t e2fsck_passes[] = {
203 e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4,
206 #define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK|E2F_FLAG_RESTART)
208 int e2fsck_run(e2fsck_t ctx)
214 if (setjmp(ctx->abort_loc)) {
215 ctx->flags &= ~E2F_FLAG_SETJMP_OK;
216 return (ctx->flags & E2F_FLAG_RUN_RETURN);
218 ctx->flags |= E2F_FLAG_SETJMP_OK;
221 for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) {
222 if (ctx->flags & E2F_FLAG_RUN_RETURN)
224 if (e2fsck_mmp_update(ctx->fs))
228 (void) (ctx->progress)(ctx, 0, 0, 0);
230 ctx->flags &= ~E2F_FLAG_SETJMP_OK;
232 if (ctx->flags & E2F_FLAG_RUN_RETURN)
233 return (ctx->flags & E2F_FLAG_RUN_RETURN);