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
18 * This function allocates an e2fsck context
20 errcode_t e2fsck_allocate_context(e2fsck_t *ret)
25 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct),
30 memset(context, 0, sizeof(struct e2fsck_struct));
32 context->process_inode_size = 256;
33 context->ext_attr_ver = 2;
40 * This function resets an e2fsck context; it is called when e2fsck
41 * needs to be restarted.
43 errcode_t e2fsck_reset_context(e2fsck_t ctx)
46 ctx->lost_and_found = 0;
47 ctx->bad_lost_and_found = 0;
48 if (ctx->inode_used_map) {
49 ext2fs_free_inode_bitmap(ctx->inode_used_map);
50 ctx->inode_used_map = 0;
52 if (ctx->inode_dir_map) {
53 ext2fs_free_inode_bitmap(ctx->inode_dir_map);
54 ctx->inode_dir_map = 0;
56 if (ctx->inode_reg_map) {
57 ext2fs_free_inode_bitmap(ctx->inode_reg_map);
58 ctx->inode_reg_map = 0;
60 if (ctx->block_found_map) {
61 ext2fs_free_block_bitmap(ctx->block_found_map);
62 ctx->block_found_map = 0;
64 if (ctx->inode_link_info) {
65 ext2fs_free_icount(ctx->inode_link_info);
66 ctx->inode_link_info = 0;
68 if (ctx->journal_io) {
69 if (ctx->fs && ctx->fs->io != ctx->journal_io)
70 io_channel_close(ctx->journal_io);
73 if (ctx->fs && ctx->fs->dblist) {
74 ext2fs_free_dblist(ctx->fs->dblist);
77 e2fsck_free_dir_info(ctx);
79 e2fsck_free_dx_dir_info(ctx);
82 ea_refcount_free(ctx->refcount);
85 if (ctx->refcount_extra) {
86 ea_refcount_free(ctx->refcount_extra);
87 ctx->refcount_extra = 0;
89 if (ctx->block_dup_map) {
90 ext2fs_free_block_bitmap(ctx->block_dup_map);
91 ctx->block_dup_map = 0;
93 if (ctx->block_ea_map) {
94 ext2fs_free_block_bitmap(ctx->block_ea_map);
95 ctx->block_ea_map = 0;
97 if (ctx->inode_bb_map) {
98 ext2fs_free_inode_bitmap(ctx->inode_bb_map);
99 ctx->inode_bb_map = 0;
101 if (ctx->inode_bad_map) {
102 ext2fs_free_inode_bitmap(ctx->inode_bad_map);
103 ctx->inode_bad_map = 0;
105 if (ctx->inode_imagic_map) {
106 ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
107 ctx->inode_imagic_map = 0;
109 if (ctx->dirs_to_hash) {
110 ext2fs_u32_list_free(ctx->dirs_to_hash);
111 ctx->dirs_to_hash = 0;
115 * Clear the array of invalid meta-data flags
117 if (ctx->invalid_inode_bitmap_flag) {
118 ext2fs_free_mem((void **) &ctx->invalid_inode_bitmap_flag);
119 ctx->invalid_inode_bitmap_flag = 0;
121 if (ctx->invalid_block_bitmap_flag) {
122 ext2fs_free_mem((void **) &ctx->invalid_block_bitmap_flag);
123 ctx->invalid_block_bitmap_flag = 0;
125 if (ctx->invalid_inode_table_flag) {
126 ext2fs_free_mem((void **) &ctx->invalid_inode_table_flag);
127 ctx->invalid_inode_table_flag = 0;
130 /* Clear statistic counters */
131 ctx->fs_directory_count = 0;
132 ctx->fs_regular_count = 0;
133 ctx->fs_blockdev_count = 0;
134 ctx->fs_chardev_count = 0;
135 ctx->fs_links_count = 0;
136 ctx->fs_symlinks_count = 0;
137 ctx->fs_fast_symlinks_count = 0;
138 ctx->fs_fifo_count = 0;
139 ctx->fs_total_count = 0;
140 ctx->fs_badblocks_count = 0;
141 ctx->fs_sockets_count = 0;
142 ctx->fs_ind_count = 0;
143 ctx->fs_dind_count = 0;
144 ctx->fs_tind_count = 0;
145 ctx->fs_fragmented = 0;
146 ctx->large_files = 0;
148 /* Reset the superblock to the user's requested value */
149 ctx->superblock = ctx->use_superblock;
154 void e2fsck_free_context(e2fsck_t ctx)
159 e2fsck_reset_context(ctx);
161 ext2fs_free_mem((void **) &ctx);
165 * This function runs through the e2fsck passes and calls them all,
166 * returning restart, abort, or cancel as necessary...
168 typedef void (*pass_t)(e2fsck_t ctx);
170 pass_t e2fsck_passes[] = {
171 e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4,
174 #define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK|E2F_FLAG_RESTART)
176 int e2fsck_run(e2fsck_t ctx)
182 if (setjmp(ctx->abort_loc))
183 return (ctx->flags & E2F_FLAG_RUN_RETURN);
184 ctx->flags |= E2F_FLAG_SETJMP_OK;
187 for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) {
188 if (ctx->flags & E2F_FLAG_RUN_RETURN)
192 (void) (ctx->progress)(ctx, 0, 0, 0);
194 ctx->flags &= ~E2F_FLAG_SETJMP_OK;
196 if (ctx->flags & E2F_FLAG_RUN_RETURN)
197 return (ctx->flags & E2F_FLAG_RUN_RETURN);