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/*
* e2fsck.c - a consistency checker for the new extended file system.
*
* Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*/
#include <errno.h>
#include "e2fsck.h"
#include "problem.h"
/*
* This function allocates an e2fsck context
*/
errcode_t e2fsck_allocate_context(e2fsck_t *ret)
{
e2fsck_t context;
errcode_t retval;
retval = ext2fs_get_mem(sizeof(struct e2fsck_struct),
(void **) &context);
if (retval)
return retval;
memset(context, 0, sizeof(struct e2fsck_struct));
context->process_inode_size = 256;
*ret = context;
return 0;
}
/*
* This function resets an e2fsck context; it is called when e2fsck
* needs to be restarted.
*/
errcode_t e2fsck_reset_context(e2fsck_t ctx)
{
ctx->flags = 0;
if (ctx->inode_used_map) {
ext2fs_free_inode_bitmap(ctx->inode_used_map);
ctx->inode_used_map = 0;
}
if (ctx->inode_dir_map) {
ext2fs_free_inode_bitmap(ctx->inode_dir_map);
ctx->inode_dir_map = 0;
}
if (ctx->block_found_map) {
ext2fs_free_block_bitmap(ctx->block_found_map);
ctx->block_found_map = 0;
}
if (ctx->inode_link_info) {
ext2fs_free_icount(ctx->inode_link_info);
ctx->inode_link_info = 0;
}
if (ctx->fs->dblist) {
ext2fs_free_dblist(ctx->fs->dblist);
ctx->fs->dblist = 0;
}
e2fsck_free_dir_info(ctx);
if (ctx->block_dup_map) {
ext2fs_free_block_bitmap(ctx->block_dup_map);
ctx->block_dup_map = 0;
}
if (ctx->inode_bb_map) {
ext2fs_free_inode_bitmap(ctx->inode_bb_map);
ctx->inode_bb_map = 0;
}
if (ctx->inode_bad_map) {
ext2fs_free_inode_bitmap(ctx->inode_bad_map);
ctx->inode_bad_map = 0;
}
/*
* Clear the array of invalid meta-data flags
*/
if (ctx->invalid_inode_bitmap_flag) {
ext2fs_free_mem((void **) &ctx->invalid_inode_bitmap_flag);
ctx->invalid_inode_bitmap_flag = 0;
}
if (ctx->invalid_block_bitmap_flag) {
ext2fs_free_mem((void **) &ctx->invalid_block_bitmap_flag);
ctx->invalid_block_bitmap_flag = 0;
}
if (ctx->invalid_inode_table_flag) {
ext2fs_free_mem((void **) &ctx->invalid_inode_table_flag);
ctx->invalid_inode_table_flag = 0;
}
/* Clear statistic counters */
ctx->fs_directory_count = 0;
ctx->fs_regular_count = 0;
ctx->fs_blockdev_count = 0;
ctx->fs_chardev_count = 0;
ctx->fs_links_count = 0;
ctx->fs_symlinks_count = 0;
ctx->fs_fast_symlinks_count = 0;
ctx->fs_fifo_count = 0;
ctx->fs_total_count = 0;
ctx->fs_badblocks_count = 0;
ctx->fs_sockets_count = 0;
ctx->fs_ind_count = 0;
ctx->fs_dind_count = 0;
ctx->fs_tind_count = 0;
ctx->fs_fragmented = 0;
/* Reset the superblock to the user's requested value */
ctx->superblock = ctx->use_superblock;
return 0;
}
void e2fsck_free_context(e2fsck_t ctx)
{
if (!ctx)
return;
e2fsck_reset_context(ctx);
ext2fs_free_mem((void **) &ctx);
}
/*
* This function runs through the e2fsck passes and calls them all,
* returning restart, abort, or cancel as necessary...
*/
typedef void (*pass_t)(e2fsck_t ctx);
pass_t e2fsck_passes[] = {
e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4,
e2fsck_pass5, 0 };
int e2fsck_run(e2fsck_t ctx)
{
int i;
pass_t e2fsck_pass;
#ifdef HAVE_SETJMP_H
if (setjmp(ctx->abort_loc))
return (ctx->flags & E2F_FLAG_SIGNAL_MASK);
ctx->flags |= E2F_FLAG_SETJMP_OK;
#endif
for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) {
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
break;
e2fsck_pass(ctx);
}
ctx->flags &= ~E2F_FLAG_SETJMP_OK;
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
return (ctx->flags & E2F_FLAG_SIGNAL_MASK);
return 0;
}
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