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)
26 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &context);
30 memset(context, 0, sizeof(struct e2fsck_struct));
32 context->process_inode_size = 256;
33 context->ext_attr_ver = 2;
35 time_env = getenv("E2FSCK_TIME");
37 context->now = strtoul(time_env, NULL, 0);
39 context->now = time(0);
46 * This function resets an e2fsck context; it is called when e2fsck
47 * needs to be restarted.
49 errcode_t e2fsck_reset_context(e2fsck_t ctx)
52 ctx->lost_and_found = 0;
53 ctx->bad_lost_and_found = 0;
54 if (ctx->inode_used_map) {
55 ext2fs_free_inode_bitmap(ctx->inode_used_map);
56 ctx->inode_used_map = 0;
58 if (ctx->inode_dir_map) {
59 ext2fs_free_inode_bitmap(ctx->inode_dir_map);
60 ctx->inode_dir_map = 0;
62 if (ctx->inode_reg_map) {
63 ext2fs_free_inode_bitmap(ctx->inode_reg_map);
64 ctx->inode_reg_map = 0;
66 if (ctx->block_found_map) {
67 ext2fs_free_block_bitmap(ctx->block_found_map);
68 ctx->block_found_map = 0;
70 if (ctx->inode_link_info) {
71 ext2fs_free_icount(ctx->inode_link_info);
72 ctx->inode_link_info = 0;
74 if (ctx->journal_io) {
75 if (ctx->fs && ctx->fs->io != ctx->journal_io)
76 io_channel_close(ctx->journal_io);
79 if (ctx->fs && ctx->fs->dblist) {
80 ext2fs_free_dblist(ctx->fs->dblist);
83 e2fsck_free_dir_info(ctx);
85 e2fsck_free_dx_dir_info(ctx);
88 ea_refcount_free(ctx->refcount);
91 if (ctx->refcount_extra) {
92 ea_refcount_free(ctx->refcount_extra);
93 ctx->refcount_extra = 0;
95 if (ctx->block_dup_map) {
96 ext2fs_free_block_bitmap(ctx->block_dup_map);
97 ctx->block_dup_map = 0;
99 if (ctx->block_ea_map) {
100 ext2fs_free_block_bitmap(ctx->block_ea_map);
101 ctx->block_ea_map = 0;
103 if (ctx->inode_bb_map) {
104 ext2fs_free_inode_bitmap(ctx->inode_bb_map);
105 ctx->inode_bb_map = 0;
107 if (ctx->inode_bad_map) {
108 ext2fs_free_inode_bitmap(ctx->inode_bad_map);
109 ctx->inode_bad_map = 0;
111 if (ctx->inode_imagic_map) {
112 ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
113 ctx->inode_imagic_map = 0;
115 if (ctx->dirs_to_hash) {
116 ext2fs_u32_list_free(ctx->dirs_to_hash);
117 ctx->dirs_to_hash = 0;
121 * Clear the array of invalid meta-data flags
123 if (ctx->invalid_inode_bitmap_flag) {
124 ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag);
125 ctx->invalid_inode_bitmap_flag = 0;
127 if (ctx->invalid_block_bitmap_flag) {
128 ext2fs_free_mem(&ctx->invalid_block_bitmap_flag);
129 ctx->invalid_block_bitmap_flag = 0;
131 if (ctx->invalid_inode_table_flag) {
132 ext2fs_free_mem(&ctx->invalid_inode_table_flag);
133 ctx->invalid_inode_table_flag = 0;
136 /* Clear statistic counters */
137 ctx->fs_directory_count = 0;
138 ctx->fs_regular_count = 0;
139 ctx->fs_blockdev_count = 0;
140 ctx->fs_chardev_count = 0;
141 ctx->fs_links_count = 0;
142 ctx->fs_symlinks_count = 0;
143 ctx->fs_fast_symlinks_count = 0;
144 ctx->fs_fifo_count = 0;
145 ctx->fs_total_count = 0;
146 ctx->fs_badblocks_count = 0;
147 ctx->fs_sockets_count = 0;
148 ctx->fs_ind_count = 0;
149 ctx->fs_dind_count = 0;
150 ctx->fs_tind_count = 0;
151 ctx->fs_fragmented = 0;
152 ctx->large_files = 0;
154 /* Reset the superblock to the user's requested value */
155 ctx->superblock = ctx->use_superblock;
160 void e2fsck_free_context(e2fsck_t ctx)
165 e2fsck_reset_context(ctx);
167 blkid_put_cache(ctx->blkid);
169 ext2fs_free_mem(&ctx);
173 * This function runs through the e2fsck passes and calls them all,
174 * returning restart, abort, or cancel as necessary...
176 typedef void (*pass_t)(e2fsck_t ctx);
178 pass_t e2fsck_passes[] = {
179 e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4,
182 #define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK|E2F_FLAG_RESTART)
184 int e2fsck_run(e2fsck_t ctx)
190 if (setjmp(ctx->abort_loc)) {
191 ctx->flags &= ~E2F_FLAG_SETJMP_OK;
192 return (ctx->flags & E2F_FLAG_RUN_RETURN);
194 ctx->flags |= E2F_FLAG_SETJMP_OK;
197 for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) {
198 if (ctx->flags & E2F_FLAG_RUN_RETURN)
202 (void) (ctx->progress)(ctx, 0, 0, 0);
204 ctx->flags &= ~E2F_FLAG_SETJMP_OK;
206 if (ctx->flags & E2F_FLAG_RUN_RETURN)
207 return (ctx->flags & E2F_FLAG_RUN_RETURN);