void e2fsck_pass5(e2fsck_t ctx)
{
#ifdef RESOURCE_TRACK
struct resource_track rtrack;
#endif
struct problem_context pctx;
#ifdef MTRACE
mtrace_print("Pass 5");
#endif
#ifdef RESOURCE_TRACK
init_resource_track(&rtrack);
#endif
clear_problem_context(&pctx);
if (!(ctx->options & E2F_OPT_PREEN))
fix_problem(ctx, PR_5_PASS_HEADER, &pctx);
if (ctx->progress)
if ((ctx->progress)(ctx, 5, 0, ctx->fs->group_desc_count*2))
return;
e2fsck_read_bitmaps(ctx);
check_block_bitmaps(ctx);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
return;
check_inode_bitmaps(ctx);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
return;
check_inode_end(ctx);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
return;
check_block_end(ctx);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
return;
ext2fs_free_inode_bitmap(ctx->inode_used_map);
ctx->inode_used_map = 0;
ext2fs_free_inode_bitmap(ctx->inode_dir_map);
ctx->inode_dir_map = 0;
ext2fs_free_block_bitmap(ctx->block_found_map);
ctx->block_found_map = 0;
#ifdef RESOURCE_TRACK
if (ctx->options & E2F_OPT_TIME2) {
e2fsck_clear_progbar(ctx);
print_resource_track(_("Pass 5"), &rtrack);
}
#endif
}
void ext2fs_free_icount(ext2_icount_t icount)
{
if (!icount)
return;
icount->magic = 0;
if (icount->list)
ext2fs_free_mem(&icount->list);
if (icount->single)
ext2fs_free_inode_bitmap(icount->single);
if (icount->multiple)
ext2fs_free_inode_bitmap(icount->multiple);
ext2fs_free_mem(&icount);
}
void ext2fs_free(ext2_filsys fs)
{
if (!fs || (fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS))
return;
if (fs->image_io != fs->io) {
if (fs->image_io)
io_channel_close(fs->image_io);
}
if (fs->io) {
io_channel_close(fs->io);
}
ext2fs_free_mem(&fs->device_name);
ext2fs_free_mem(&fs->super);
ext2fs_free_mem(&fs->orig_super);
ext2fs_free_mem(&fs->group_desc);
ext2fs_free_block_bitmap(fs->block_map);
ext2fs_free_inode_bitmap(fs->inode_map);
ext2fs_badblocks_list_free(fs->badblocks);
fs->badblocks = 0;
ext2fs_free_dblist(fs->dblist);
if (fs->icache)
ext2fs_free_inode_cache(fs->icache);
fs->magic = 0;
ext2fs_free_mem(&fs);
}
void ext2fs_free_icount(ext2_icount_t icount)
{
if (!icount)
return;
icount->magic = 0;
if (icount->list)
ext2fs_free_mem(&icount->list);
if (icount->single)
ext2fs_free_inode_bitmap(icount->single);
if (icount->multiple)
ext2fs_free_inode_bitmap(icount->multiple);
if (icount->tdb)
tdb_close(icount->tdb);
if (icount->tdb_fn) {
unlink(icount->tdb_fn);
free(icount->tdb_fn);
}
ext2fs_free_mem(&icount);
}
void free_empty_dirblock(empty_dir_info edi)
{
if (!edi)
return;
if (edi->empty_dblist)
ext2fs_free_dblist(edi->empty_dblist);
if (edi->empty_dir_blocks)
ext2fs_free_block_bitmap(edi->empty_dir_blocks);
if (edi->dir_map)
ext2fs_free_inode_bitmap(edi->dir_map);
memset(edi, 0, sizeof(struct empty_dir_info_struct));
free(edi);
}
static void setup_filesystem(const char *name,
unsigned int blocks, unsigned int inodes,
unsigned int type, int flags)
{
struct ext2_super_block param;
errcode_t retval;
memset(¶m, 0, sizeof(param));
ext2fs_blocks_count_set(¶m, blocks);
param.s_inodes_count = inodes;
retval = ext2fs_initialize("test fs", flags, ¶m,
test_io_manager, &test_fs);
if (retval) {
com_err(name, retval, "while initializing filesystem");
return;
}
test_fs->default_bitmap_type = type;
ext2fs_free_block_bitmap(test_fs->block_map);
test_fs->block_map = 0;
ext2fs_free_inode_bitmap(test_fs->inode_map);
test_fs->inode_map = 0;
retval = ext2fs_allocate_block_bitmap(test_fs, "block bitmap",
&test_fs->block_map);
if (retval) {
com_err(name, retval, "while allocating block bitmap");
goto errout;
}
retval = ext2fs_allocate_inode_bitmap(test_fs, "inode bitmap",
&test_fs->inode_map);
if (retval) {
com_err(name, retval, "while allocating inode bitmap");
goto errout;
}
return;
errout:
ext2fs_close_free(&test_fs);
}
static errcode_t read_bitmaps(ext2_filsys fs, int do_inode, int do_block)
{
dgrp_t i;
char *block_bitmap = 0, *inode_bitmap = 0;
char *buf;
errcode_t retval;
int block_nbytes = (int) EXT2_BLOCKS_PER_GROUP(fs->super) / 8;
int inode_nbytes = (int) EXT2_INODES_PER_GROUP(fs->super) / 8;
int lazy_flag = 0;
blk_t blk;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
fs->write_bitmaps = ext2fs_write_bitmaps;
if (EXT2_HAS_COMPAT_FEATURE(fs->super,
EXT2_FEATURE_COMPAT_LAZY_BG))
lazy_flag = 1;
retval = ext2fs_get_mem(strlen(fs->device_name) + 80, &buf);
if (retval)
return retval;
if (do_block) {
if (fs->block_map)
ext2fs_free_block_bitmap(fs->block_map);
sprintf(buf, "block bitmap for %s", fs->device_name);
retval = ext2fs_allocate_block_bitmap(fs, buf, &fs->block_map);
if (retval)
goto cleanup;
block_bitmap = fs->block_map->bitmap;
}
if (do_inode) {
if (fs->inode_map)
ext2fs_free_inode_bitmap(fs->inode_map);
sprintf(buf, "inode bitmap for %s", fs->device_name);
retval = ext2fs_allocate_inode_bitmap(fs, buf, &fs->inode_map);
if (retval)
goto cleanup;
inode_bitmap = fs->inode_map->bitmap;
}
ext2fs_free_mem(&buf);
if (fs->flags & EXT2_FLAG_IMAGE_FILE) {
if (inode_bitmap) {
blk = (fs->image_header->offset_inodemap /
fs->blocksize);
retval = io_channel_read_blk(fs->image_io, blk,
-(inode_nbytes * fs->group_desc_count),
inode_bitmap);
if (retval)
goto cleanup;
}
if (block_bitmap) {
blk = (fs->image_header->offset_blockmap /
fs->blocksize);
retval = io_channel_read_blk(fs->image_io, blk,
-(block_nbytes * fs->group_desc_count),
block_bitmap);
if (retval)
goto cleanup;
}
return 0;
}
for (i = 0; i < fs->group_desc_count; i++) {
if (block_bitmap) {
blk = fs->group_desc[i].bg_block_bitmap;
if (lazy_flag && fs->group_desc[i].bg_flags &
EXT2_BG_BLOCK_UNINIT)
blk = 0;
if (blk) {
retval = io_channel_read_blk(fs->io, blk,
-block_nbytes, block_bitmap);
if (retval) {
retval = EXT2_ET_BLOCK_BITMAP_READ;
goto cleanup;
}
#ifdef EXT2_BIG_ENDIAN_BITMAPS
if (!((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
(fs->flags & EXT2_FLAG_SWAP_BYTES_READ)))
ext2fs_swap_bitmap(fs, block_bitmap, block_nbytes);
#endif
} else
memset(block_bitmap, 0xff, block_nbytes);
block_bitmap += block_nbytes;
}
if (inode_bitmap) {
blk = fs->group_desc[i].bg_inode_bitmap;
if (lazy_flag && fs->group_desc[i].bg_flags &
EXT2_BG_INODE_UNINIT)
blk = 0;
if (blk) {
retval = io_channel_read_blk(fs->io, blk,
-inode_nbytes, inode_bitmap);
if (retval) {
retval = EXT2_ET_INODE_BITMAP_READ;
goto cleanup;
}
#ifdef EXT2_BIG_ENDIAN_BITMAPS
if (!((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
(fs->flags & EXT2_FLAG_SWAP_BYTES_READ)))
ext2fs_swap_bitmap(fs, inode_bitmap, inode_nbytes);
#endif
} else
memset(inode_bitmap, 0xff, inode_nbytes);
inode_bitmap += inode_nbytes;
}
}
return 0;
cleanup:
if (do_block) {
ext2fs_free_mem(&fs->block_map);
fs->block_map = 0;
}
if (do_inode) {
ext2fs_free_mem(&fs->inode_map);
fs->inode_map = 0;
}
if (buf)
ext2fs_free_mem(&buf);
return retval;
}
static errcode_t read_bitmaps(ext2_filsys fs, int do_inode, int do_block)
{
dgrp_t i;
char *block_bitmap = 0, *inode_bitmap = 0;
char *buf;
errcode_t retval;
int block_nbytes = EXT2_CLUSTERS_PER_GROUP(fs->super) / 8;
int inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8;
int csum_flag;
unsigned int cnt;
blk64_t blk;
blk64_t blk_itr = EXT2FS_B2C(fs, fs->super->s_first_data_block);
blk64_t blk_cnt;
ext2_ino_t ino_itr = 1;
ext2_ino_t ino_cnt;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
if ((block_nbytes > (int) fs->blocksize) ||
(inode_nbytes > (int) fs->blocksize))
return EXT2_ET_CORRUPT_SUPERBLOCK;
fs->write_bitmaps = ext2fs_write_bitmaps;
csum_flag = ext2fs_has_group_desc_csum(fs);
retval = ext2fs_get_mem(strlen(fs->device_name) + 80, &buf);
if (retval)
return retval;
if (do_block) {
if (fs->block_map)
ext2fs_free_block_bitmap(fs->block_map);
strcpy(buf, "block bitmap for ");
strcat(buf, fs->device_name);
retval = ext2fs_allocate_block_bitmap(fs, buf, &fs->block_map);
if (retval)
goto cleanup;
retval = io_channel_alloc_buf(fs->io, 0, &block_bitmap);
if (retval)
goto cleanup;
} else
block_nbytes = 0;
if (do_inode) {
if (fs->inode_map)
ext2fs_free_inode_bitmap(fs->inode_map);
strcpy(buf, "inode bitmap for ");
strcat(buf, fs->device_name);
retval = ext2fs_allocate_inode_bitmap(fs, buf, &fs->inode_map);
if (retval)
goto cleanup;
retval = io_channel_alloc_buf(fs->io, 0, &inode_bitmap);
if (retval)
goto cleanup;
} else
inode_nbytes = 0;
ext2fs_free_mem(&buf);
if (fs->flags & EXT2_FLAG_IMAGE_FILE) {
blk = (ext2fs_le32_to_cpu(fs->image_header->offset_inodemap) / fs->blocksize);
ino_cnt = fs->super->s_inodes_count;
while (inode_bitmap && ino_cnt > 0) {
retval = io_channel_read_blk64(fs->image_io, blk++,
1, inode_bitmap);
if (retval)
goto cleanup;
cnt = fs->blocksize << 3;
if (cnt > ino_cnt)
cnt = ino_cnt;
retval = ext2fs_set_inode_bitmap_range2(fs->inode_map,
ino_itr, cnt, inode_bitmap);
if (retval)
goto cleanup;
ino_itr += cnt;
ino_cnt -= cnt;
}
blk = (ext2fs_le32_to_cpu(fs->image_header->offset_blockmap) /
fs->blocksize);
blk_cnt = EXT2_GROUPS_TO_CLUSTERS(fs->super,
fs->group_desc_count);
while (block_bitmap && blk_cnt > 0) {
retval = io_channel_read_blk64(fs->image_io, blk++,
1, block_bitmap);
if (retval)
goto cleanup;
cnt = fs->blocksize << 3;
if (cnt > blk_cnt)
cnt = blk_cnt;
retval = ext2fs_set_block_bitmap_range2(fs->block_map,
blk_itr, cnt, block_bitmap);
if (retval)
goto cleanup;
blk_itr += cnt;
blk_cnt -= cnt;
}
goto success_cleanup;
}
for (i = 0; i < fs->group_desc_count; i++) {
if (block_bitmap) {
blk = ext2fs_block_bitmap_loc(fs, i);
if (csum_flag &&
ext2fs_bg_flags_test(fs, i, EXT2_BG_BLOCK_UNINIT) &&
ext2fs_group_desc_csum_verify(fs, i))
blk = 0;
if (blk) {
retval = io_channel_read_blk64(fs->io, blk,
1, block_bitmap);
if (retval) {
retval = EXT2_ET_BLOCK_BITMAP_READ;
goto cleanup;
}
/* verify block bitmap checksum */
if (!(fs->flags &
EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
!ext2fs_block_bitmap_csum_verify(fs, i,
block_bitmap, block_nbytes)) {
retval =
EXT2_ET_BLOCK_BITMAP_CSUM_INVALID;
goto cleanup;
}
} else
memset(block_bitmap, 0, block_nbytes);
cnt = block_nbytes << 3;
retval = ext2fs_set_block_bitmap_range2(fs->block_map,
blk_itr, cnt, block_bitmap);
if (retval)
goto cleanup;
blk_itr += block_nbytes << 3;
}
if (inode_bitmap) {
blk = ext2fs_inode_bitmap_loc(fs, i);
if (csum_flag &&
ext2fs_bg_flags_test(fs, i, EXT2_BG_INODE_UNINIT) &&
ext2fs_group_desc_csum_verify(fs, i))
blk = 0;
if (blk) {
retval = io_channel_read_blk64(fs->io, blk,
1, inode_bitmap);
if (retval) {
retval = EXT2_ET_INODE_BITMAP_READ;
goto cleanup;
}
/* verify inode bitmap checksum */
if (!(fs->flags &
EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
!ext2fs_inode_bitmap_csum_verify(fs, i,
inode_bitmap, inode_nbytes)) {
retval =
EXT2_ET_INODE_BITMAP_CSUM_INVALID;
goto cleanup;
}
} else
memset(inode_bitmap, 0, inode_nbytes);
cnt = inode_nbytes << 3;
retval = ext2fs_set_inode_bitmap_range2(fs->inode_map,
ino_itr, cnt, inode_bitmap);
if (retval)
goto cleanup;
ino_itr += inode_nbytes << 3;
}
}
/* Mark group blocks for any BLOCK_UNINIT groups */
if (do_block) {
retval = mark_uninit_bg_group_blocks(fs);
if (retval)
goto cleanup;
}
success_cleanup:
if (inode_bitmap)
ext2fs_free_mem(&inode_bitmap);
if (block_bitmap)
ext2fs_free_mem(&block_bitmap);
return 0;
cleanup:
if (do_block) {
ext2fs_free_mem(&fs->block_map);
fs->block_map = 0;
}
if (do_inode) {
ext2fs_free_mem(&fs->inode_map);
fs->inode_map = 0;
}
if (inode_bitmap)
ext2fs_free_mem(&inode_bitmap);
if (block_bitmap)
ext2fs_free_mem(&block_bitmap);
if (buf)
ext2fs_free_mem(&buf);
return retval;
}
void e2fsck_pass3(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
struct dir_info_iter *iter;
#ifdef RESOURCE_TRACK
struct resource_track rtrack;
#endif
struct problem_context pctx;
struct dir_info *dir;
unsigned long maxdirs, count;
init_resource_track(&rtrack, ctx->fs->io);
clear_problem_context(&pctx);
#ifdef MTRACE
mtrace_print("Pass 3");
#endif
if (!(ctx->options & E2F_OPT_PREEN))
fix_problem(ctx, PR_3_PASS_HEADER, &pctx);
/*
* Allocate some bitmaps to do loop detection.
*/
pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("inode done bitmap"),
EXT2FS_BMAP64_AUTODIR,
"inode_done_map", &inode_done_map);
if (pctx.errcode) {
pctx.num = 2;
fix_problem(ctx, PR_3_ALLOCATE_IBITMAP_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
goto abort_exit;
}
print_resource_track(ctx, _("Peak memory"), &ctx->global_rtrack, NULL);
check_root(ctx);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
goto abort_exit;
ext2fs_mark_inode_bitmap2(inode_done_map, EXT2_ROOT_INO);
maxdirs = e2fsck_get_num_dirinfo(ctx);
count = 1;
if (ctx->progress)
if ((ctx->progress)(ctx, 3, 0, maxdirs))
goto abort_exit;
iter = e2fsck_dir_info_iter_begin(ctx);
while ((dir = e2fsck_dir_info_iter(ctx, iter)) != 0) {
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
goto abort_exit;
if (ctx->progress && (ctx->progress)(ctx, 3, count++, maxdirs))
goto abort_exit;
if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, dir->ino))
if (check_directory(ctx, dir->ino, &pctx))
goto abort_exit;
}
e2fsck_dir_info_iter_end(ctx, iter);
/*
* Force the creation of /lost+found if not present
*/
if ((ctx->flags & E2F_OPT_READONLY) == 0)
e2fsck_get_lost_and_found(ctx, 1);
/*
* If there are any directories that need to be indexed or
* optimized, do it here.
*/
e2fsck_rehash_directories(ctx);
abort_exit:
e2fsck_free_dir_info(ctx);
if (inode_loop_detect) {
ext2fs_free_inode_bitmap(inode_loop_detect);
inode_loop_detect = 0;
}
if (inode_done_map) {
ext2fs_free_inode_bitmap(inode_done_map);
inode_done_map = 0;
}
print_resource_track(ctx, _("Pass 3"), &rtrack, ctx->fs->io);
}
void e2fsck_pass2(e2fsck_t ctx)
{
struct ext2_super_block *sb = ctx->fs->super;
struct problem_context pctx;
ext2_filsys fs = ctx->fs;
char *buf;
#ifdef RESOURCE_TRACK
struct resource_track rtrack;
#endif
struct check_dir_struct cd;
struct dx_dir_info *dx_dir;
struct dx_dirblock_info *dx_db, *dx_parent;
unsigned int save_type;
int b;
int i, depth;
problem_t code;
int bad_dir;
init_resource_track(&rtrack, ctx->fs->io);
clear_problem_context(&cd.pctx);
#ifdef MTRACE
mtrace_print("Pass 2");
#endif
if (!(ctx->options & E2F_OPT_PREEN))
fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx);
e2fsck_setup_tdb_icount(ctx, EXT2_ICOUNT_OPT_INCREMENT,
&ctx->inode_count);
if (ctx->inode_count)
cd.pctx.errcode = 0;
else {
e2fsck_set_bitmap_type(fs, EXT2FS_BMAP64_RBTREE,
"inode_count", &save_type);
cd.pctx.errcode = ext2fs_create_icount2(fs,
EXT2_ICOUNT_OPT_INCREMENT,
0, ctx->inode_link_info,
&ctx->inode_count);
fs->default_bitmap_type = save_type;
}
if (cd.pctx.errcode) {
fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
buf = (char *) e2fsck_allocate_memory(ctx, 2*fs->blocksize,
"directory scan buffer");
/*
* Set up the parent pointer for the root directory, if
* present. (If the root directory is not present, we will
* create it in pass 3.)
*/
(void) e2fsck_dir_info_set_parent(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO);
cd.buf = buf;
cd.ctx = ctx;
cd.count = 1;
cd.max = ext2fs_dblist_count2(fs->dblist);
if (ctx->progress)
(void) (ctx->progress)(ctx, 2, 0, cd.max);
if (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX)
ext2fs_dblist_sort2(fs->dblist, special_dir_block_cmp);
cd.pctx.errcode = ext2fs_dblist_iterate2(fs->dblist, check_dir_block,
&cd);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK || ctx->flags & E2F_FLAG_RESTART)
return;
if (ctx->flags & E2F_FLAG_RESTART_LATER) {
ctx->flags |= E2F_FLAG_RESTART;
return;
}
if (cd.pctx.errcode) {
fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
#ifdef ENABLE_HTREE
for (i=0; (dx_dir = e2fsck_dx_dir_info_iter(ctx, &i)) != 0;) {
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
return;
if (dx_dir->numblocks == 0)
continue;
clear_problem_context(&pctx);
bad_dir = 0;
pctx.dir = dx_dir->ino;
dx_db = dx_dir->dx_block;
if (dx_db->flags & DX_FLAG_REFERENCED)
dx_db->flags |= DX_FLAG_DUP_REF;
else
dx_db->flags |= DX_FLAG_REFERENCED;
/*
* Find all of the first and last leaf blocks, and
* update their parent's min and max hash values
*/
for (b=0, dx_db = dx_dir->dx_block;
b < dx_dir->numblocks;
b++, dx_db++) {
if ((dx_db->type != DX_DIRBLOCK_LEAF) ||
!(dx_db->flags & (DX_FLAG_FIRST | DX_FLAG_LAST)))
continue;
dx_parent = &dx_dir->dx_block[dx_db->parent];
/*
* XXX Make sure dx_parent->min_hash > dx_db->min_hash
*/
if (dx_db->flags & DX_FLAG_FIRST)
dx_parent->min_hash = dx_db->min_hash;
/*
* XXX Make sure dx_parent->max_hash < dx_db->max_hash
*/
if (dx_db->flags & DX_FLAG_LAST)
dx_parent->max_hash = dx_db->max_hash;
}
for (b=0, dx_db = dx_dir->dx_block;
b < dx_dir->numblocks;
b++, dx_db++) {
pctx.blkcount = b;
pctx.group = dx_db->parent;
code = 0;
if (!(dx_db->flags & DX_FLAG_FIRST) &&
(dx_db->min_hash < dx_db->node_min_hash)) {
pctx.blk = dx_db->min_hash;
pctx.blk2 = dx_db->node_min_hash;
code = PR_2_HTREE_MIN_HASH;
fix_problem(ctx, code, &pctx);
bad_dir++;
}
if (dx_db->type == DX_DIRBLOCK_LEAF) {
depth = htree_depth(dx_dir, dx_db);
if (depth != dx_dir->depth) {
pctx.num = dx_dir->depth;
code = PR_2_HTREE_BAD_DEPTH;
fix_problem(ctx, code, &pctx);
bad_dir++;
}
}
/*
* This test doesn't apply for the root block
* at block #0
*/
if (b &&
(dx_db->max_hash > dx_db->node_max_hash)) {
pctx.blk = dx_db->max_hash;
pctx.blk2 = dx_db->node_max_hash;
code = PR_2_HTREE_MAX_HASH;
fix_problem(ctx, code, &pctx);
bad_dir++;
}
if (!(dx_db->flags & DX_FLAG_REFERENCED)) {
code = PR_2_HTREE_NOTREF;
fix_problem(ctx, code, &pctx);
bad_dir++;
} else if (dx_db->flags & DX_FLAG_DUP_REF) {
code = PR_2_HTREE_DUPREF;
fix_problem(ctx, code, &pctx);
bad_dir++;
}
}
if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) {
clear_htree(ctx, dx_dir->ino);
dx_dir->numblocks = 0;
}
}
e2fsck_free_dx_dir_info(ctx);
#endif
ext2fs_free_mem(&buf);
ext2fs_free_dblist(fs->dblist);
if (ctx->inode_bad_map) {
ext2fs_free_inode_bitmap(ctx->inode_bad_map);
ctx->inode_bad_map = 0;
}
if (ctx->inode_reg_map) {
ext2fs_free_inode_bitmap(ctx->inode_reg_map);
ctx->inode_reg_map = 0;
}
clear_problem_context(&pctx);
if (ctx->large_files) {
if (!(sb->s_feature_ro_compat &
EXT2_FEATURE_RO_COMPAT_LARGE_FILE) &&
fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) {
sb->s_feature_ro_compat |=
EXT2_FEATURE_RO_COMPAT_LARGE_FILE;
fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
ext2fs_mark_super_dirty(fs);
}
if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
ext2fs_update_dynamic_rev(fs);
ext2fs_mark_super_dirty(fs);
}
}
print_resource_track(ctx, _("Pass 2"), &rtrack, fs->io);
}
void e2fsck_pass2(e2fsck_t ctx)
{
struct ext2_super_block *sb = ctx->fs->super;
struct problem_context pctx;
ext2_filsys fs = ctx->fs;
char *buf;
#ifdef RESOURCE_TRACK
struct resource_track rtrack;
#endif
struct dir_info *dir;
struct check_dir_struct cd;
#ifdef RESOURCE_TRACK
init_resource_track(&rtrack);
#endif
clear_problem_context(&cd.pctx);
#ifdef MTRACE
mtrace_print("Pass 2");
#endif
if (!(ctx->options & E2F_OPT_PREEN))
fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx);
cd.pctx.errcode = ext2fs_create_icount2(fs, EXT2_ICOUNT_OPT_INCREMENT,
0, ctx->inode_link_info,
&ctx->inode_count);
if (cd.pctx.errcode) {
fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize,
"directory scan buffer");
/*
* Set up the parent pointer for the root directory, if
* present. (If the root directory is not present, we will
* create it in pass 3.)
*/
dir = e2fsck_get_dir_info(ctx, EXT2_ROOT_INO);
if (dir)
dir->parent = EXT2_ROOT_INO;
cd.buf = buf;
cd.ctx = ctx;
cd.count = 1;
cd.max = ext2fs_dblist_count(fs->dblist);
if (ctx->progress)
(void) (ctx->progress)(ctx, 2, 0, cd.max);
cd.pctx.errcode = ext2fs_dblist_iterate(fs->dblist, check_dir_block,
&cd);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
return;
if (cd.pctx.errcode) {
fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
ext2fs_free_mem((void **) &buf);
ext2fs_free_dblist(fs->dblist);
if (ctx->inode_bad_map) {
ext2fs_free_inode_bitmap(ctx->inode_bad_map);
ctx->inode_bad_map = 0;
}
if (ctx->inode_reg_map) {
ext2fs_free_inode_bitmap(ctx->inode_reg_map);
ctx->inode_reg_map = 0;
}
clear_problem_context(&pctx);
if (ctx->large_files) {
if (!(sb->s_feature_ro_compat &
EXT2_FEATURE_RO_COMPAT_LARGE_FILE) &&
fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) {
sb->s_feature_ro_compat |=
EXT2_FEATURE_RO_COMPAT_LARGE_FILE;
ext2fs_mark_super_dirty(fs);
}
if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
ext2fs_update_dynamic_rev(fs);
ext2fs_mark_super_dirty(fs);
}
} else if (!ctx->large_files &&
(sb->s_feature_ro_compat &
EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) {
if (fs->flags & EXT2_FLAG_RW) {
sb->s_feature_ro_compat &=
~EXT2_FEATURE_RO_COMPAT_LARGE_FILE;
ext2fs_mark_super_dirty(fs);
}
}
#ifdef RESOURCE_TRACK
if (ctx->options & E2F_OPT_TIME2) {
e2fsck_clear_progbar(ctx);
print_resource_track("Pass 2", &rtrack);
}
#endif
}
/*
* This function resets an e2fsck context; it is called when e2fsck
* needs to be restarted.
*/
errcode_t e2fsck_reset_context(e2fsck_t ctx)
{
int i;
ctx->flags &= E2F_RESET_FLAGS;
ctx->lost_and_found = 0;
ctx->bad_lost_and_found = 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->inode_reg_map) {
ext2fs_free_inode_bitmap(ctx->inode_reg_map);
ctx->inode_reg_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->journal_io) {
if (ctx->fs && ctx->fs->io != ctx->journal_io)
io_channel_close(ctx->journal_io);
ctx->journal_io = 0;
}
if (ctx->fs && ctx->fs->dblist) {
ext2fs_free_dblist(ctx->fs->dblist);
ctx->fs->dblist = 0;
}
e2fsck_free_dir_info(ctx);
e2fsck_free_dx_dir_info(ctx);
if (ctx->refcount) {
ea_refcount_free(ctx->refcount);
ctx->refcount = 0;
}
if (ctx->refcount_extra) {
ea_refcount_free(ctx->refcount_extra);
ctx->refcount_extra = 0;
}
if (ctx->block_dup_map) {
ext2fs_free_block_bitmap(ctx->block_dup_map);
ctx->block_dup_map = 0;
}
if (ctx->block_ea_map) {
ext2fs_free_block_bitmap(ctx->block_ea_map);
ctx->block_ea_map = 0;
}
if (ctx->block_metadata_map) {
ext2fs_free_block_bitmap(ctx->block_metadata_map);
ctx->block_metadata_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;
}
if (ctx->inode_imagic_map) {
ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
ctx->inode_imagic_map = 0;
}
if (ctx->dirs_to_hash) {
ext2fs_u32_list_free(ctx->dirs_to_hash);
ctx->dirs_to_hash = 0;
}
/*
* Clear the array of invalid meta-data flags
*/
if (ctx->invalid_inode_bitmap_flag) {
ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag);
ctx->invalid_inode_bitmap_flag = 0;
}
if (ctx->invalid_block_bitmap_flag) {
ext2fs_free_mem(&ctx->invalid_block_bitmap_flag);
ctx->invalid_block_bitmap_flag = 0;
}
if (ctx->invalid_inode_table_flag) {
ext2fs_free_mem(&ctx->invalid_inode_table_flag);
ctx->invalid_inode_table_flag = 0;
}
if (ctx->encrypted_dirs) {
ext2fs_u32_list_free(ctx->encrypted_dirs);
ctx->encrypted_dirs = 0;
}
if (ctx->inode_count) {
ext2fs_free_icount(ctx->inode_count);
ctx->inode_count = 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;
ctx->fs_fragmented_dir = 0;
ctx->large_files = 0;
for (i=0; i < MAX_EXTENT_DEPTH_COUNT; i++)
ctx->extent_depth_count[i] = 0;
/* Reset the superblock to the user's requested value */
ctx->superblock = ctx->use_superblock;
return 0;
}
static void check_inode_bitmaps(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
ext2_ino_t i;
unsigned int free_inodes = 0;
int group_free = 0;
int dirs_count = 0;
int group = 0;
unsigned int inodes = 0;
ext2_ino_t *free_array;
ext2_ino_t *dir_array;
int actual, bitmap;
errcode_t retval;
struct problem_context pctx;
int problem, save_problem, fixit, had_problem;
int csum_flag;
int skip_group = 0;
int redo_flag = 0;
ext2_ino_t first_free = fs->super->s_inodes_per_group + 1;
clear_problem_context(&pctx);
free_array = (ext2_ino_t *) e2fsck_allocate_memory(ctx,
fs->group_desc_count * sizeof(ext2_ino_t), "free inode count array");
dir_array = (ext2_ino_t *) e2fsck_allocate_memory(ctx,
fs->group_desc_count * sizeof(ext2_ino_t), "directory count array");
if ((1 < ext2fs_get_inode_bitmap_start2(ctx->inode_used_map)) ||
(fs->super->s_inodes_count >
ext2fs_get_inode_bitmap_end2(ctx->inode_used_map))) {
pctx.num = 3;
pctx.blk = 1;
pctx.blk2 = fs->super->s_inodes_count;
pctx.ino = ext2fs_get_inode_bitmap_start2(ctx->inode_used_map);
pctx.ino2 = ext2fs_get_inode_bitmap_end2(ctx->inode_used_map);
fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
ctx->flags |= E2F_FLAG_ABORT; /* fatal */
goto errout;
}
if ((1 < ext2fs_get_inode_bitmap_start2(fs->inode_map)) ||
(fs->super->s_inodes_count >
ext2fs_get_inode_bitmap_end2(fs->inode_map))) {
pctx.num = 4;
pctx.blk = 1;
pctx.blk2 = fs->super->s_inodes_count;
pctx.ino = ext2fs_get_inode_bitmap_start2(fs->inode_map);
pctx.ino2 = ext2fs_get_inode_bitmap_end2(fs->inode_map);
fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
ctx->flags |= E2F_FLAG_ABORT; /* fatal */
goto errout;
}
csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
redo_counts:
had_problem = 0;
save_problem = 0;
pctx.ino = pctx.ino2 = 0;
if (csum_flag &&
(ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)))
skip_group++;
/* Protect loop from wrap-around if inodes_count is maxed */
for (i = 1; i <= fs->super->s_inodes_count && i > 0; i++) {
bitmap = 0;
if (skip_group &&
i % fs->super->s_inodes_per_group == 1) {
/*
* Current inode is the first inode
* in the current block group.
*/
if (ext2fs_test_inode_bitmap_range(
ctx->inode_used_map, i,
fs->super->s_inodes_per_group)) {
/*
* When the compared inodes in inodes bitmap
* are 0, count the free inode,
* skip the current block group.
*/
first_free = 1;
inodes = fs->super->s_inodes_per_group - 1;
group_free = inodes;
free_inodes += inodes;
i += inodes;
skip_group = 0;
goto do_counts;
}
}
actual = ext2fs_fast_test_inode_bitmap2(ctx->inode_used_map, i);
if (redo_flag)
bitmap = actual;
else if (!skip_group)
bitmap = ext2fs_fast_test_inode_bitmap2(fs->inode_map, i);
if (!actual == !bitmap)
goto do_counts;
if (!actual && bitmap) {
/*
* Inode wasn't used, but marked in bitmap
*/
problem = PR_5_INODE_UNUSED;
} else /* if (actual && !bitmap) */ {
/*
* Inode used, but not in bitmap
*/
problem = PR_5_INODE_USED;
/* We should never hit this, because it means that
* inodes were marked in use that weren't noticed
* in pass1 or pass 2. It is easier to fix the problem
* than to kill e2fsck and leave the user stuck. */
if (skip_group) {
struct problem_context pctx2;
pctx2.blk = i;
pctx2.group = group;
if (fix_problem(ctx, PR_5_INODE_UNINIT,&pctx2)){
ext2fs_bg_flags_clear(fs, group, EXT2_BG_INODE_UNINIT);
skip_group = 0;
}
}
}
if (pctx.ino == 0) {
pctx.ino = pctx.ino2 = i;
save_problem = problem;
} else {
if ((problem == save_problem) &&
(pctx.ino2 == i-1))
pctx.ino2++;
else {
print_bitmap_problem(ctx, save_problem, &pctx);
pctx.ino = pctx.ino2 = i;
save_problem = problem;
}
}
ctx->flags |= E2F_FLAG_PROG_SUPPRESS;
had_problem++;
/*
* If there a problem we should turn off the discard so we
* do not compromise the filesystem.
*/
ctx->options &= ~E2F_OPT_DISCARD;
do_counts:
inodes++;
if (bitmap) {
if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, i))
dirs_count++;
if (inodes > first_free) {
e2fsck_discard_inodes(ctx, group, first_free,
inodes - first_free);
first_free = fs->super->s_inodes_per_group + 1;
}
} else {
group_free++;
free_inodes++;
if (first_free > inodes)
first_free = inodes;
}
if ((inodes == fs->super->s_inodes_per_group) ||
(i == fs->super->s_inodes_count)) {
/*
* If the last inode is free, we can discard it as well.
*/
if (!bitmap && inodes >= first_free)
e2fsck_discard_inodes(ctx, group, first_free,
inodes - first_free + 1);
/*
* If discard zeroes data and the group inode table
* was not zeroed yet, set itable as zeroed
*/
if ((ctx->options & E2F_OPT_DISCARD) &&
io_channel_discard_zeroes_data(fs->io) &&
!(ext2fs_bg_flags_test(fs, group,
EXT2_BG_INODE_ZEROED))) {
ext2fs_bg_flags_set(fs, group,
EXT2_BG_INODE_ZEROED);
ext2fs_group_desc_csum_set(fs, group);
}
first_free = fs->super->s_inodes_per_group + 1;
free_array[group] = group_free;
dir_array[group] = dirs_count;
group ++;
inodes = 0;
skip_group = 0;
group_free = 0;
dirs_count = 0;
if (ctx->progress)
if ((ctx->progress)(ctx, 5,
group + fs->group_desc_count,
fs->group_desc_count*2))
goto errout;
if (csum_flag &&
(i != fs->super->s_inodes_count) &&
(ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)
))
skip_group++;
}
}
if (pctx.ino)
print_bitmap_problem(ctx, save_problem, &pctx);
if (had_problem)
fixit = end_problem_latch(ctx, PR_LATCH_IBITMAP);
else
fixit = -1;
ctx->flags &= ~E2F_FLAG_PROG_SUPPRESS;
if (fixit == 1) {
ext2fs_free_inode_bitmap(fs->inode_map);
retval = ext2fs_copy_bitmap(ctx->inode_used_map,
&fs->inode_map);
if (retval) {
clear_problem_context(&pctx);
fix_problem(ctx, PR_5_COPY_IBITMAP_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
goto errout;
}
ext2fs_set_bitmap_padding(fs->inode_map);
ext2fs_mark_ib_dirty(fs);
/* redo counts */
inodes = 0; free_inodes = 0; group_free = 0;
dirs_count = 0; group = 0;
memset(free_array, 0, fs->group_desc_count * sizeof(int));
memset(dir_array, 0, fs->group_desc_count * sizeof(int));
redo_flag++;
goto redo_counts;
} else if (fixit == 0)
ext2fs_unmark_valid(fs);
for (i = 0; i < fs->group_desc_count; i++) {
if (free_array[i] != ext2fs_bg_free_inodes_count(fs, i)) {
pctx.group = i;
pctx.ino = ext2fs_bg_free_inodes_count(fs, i);
pctx.ino2 = free_array[i];
if (fix_problem(ctx, PR_5_FREE_INODE_COUNT_GROUP,
&pctx)) {
ext2fs_bg_free_inodes_count_set(fs, i, free_array[i]);
ext2fs_mark_super_dirty(fs);
} else
ext2fs_unmark_valid(fs);
}
if (dir_array[i] != ext2fs_bg_used_dirs_count(fs, i)) {
pctx.group = i;
pctx.ino = ext2fs_bg_used_dirs_count(fs, i);
pctx.ino2 = dir_array[i];
if (fix_problem(ctx, PR_5_FREE_DIR_COUNT_GROUP,
&pctx)) {
ext2fs_bg_used_dirs_count_set(fs, i, dir_array[i]);
ext2fs_mark_super_dirty(fs);
} else
ext2fs_unmark_valid(fs);
}
}
if (free_inodes != fs->super->s_free_inodes_count) {
pctx.group = -1;
pctx.ino = fs->super->s_free_inodes_count;
pctx.ino2 = free_inodes;
if (fix_problem(ctx, PR_5_FREE_INODE_COUNT, &pctx)) {
fs->super->s_free_inodes_count = free_inodes;
ext2fs_mark_super_dirty(fs);
}
}
errout:
ext2fs_free_mem(&free_array);
ext2fs_free_mem(&dir_array);
}
void e2fsck_pass4(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
ext2_ino_t i;
struct ext2_inode inode;
#ifdef RESOURCE_TRACK
struct resource_track rtrack;
#endif
struct problem_context pctx;
__u16 link_count, link_counted;
char *buf = 0;
int group, maxgroup;
#ifdef RESOURCE_TRACK
init_resource_track(&rtrack);
#endif
#ifdef MTRACE
mtrace_print("Pass 4");
#endif
clear_problem_context(&pctx);
if (!(ctx->options & E2F_OPT_PREEN))
fix_problem(ctx, PR_4_PASS_HEADER, &pctx);
group = 0;
maxgroup = fs->group_desc_count;
if (ctx->progress)
if ((ctx->progress)(ctx, 4, 0, maxgroup))
return;
/* Protect loop from wrap-around if s_inodes_count maxed */
for (i=1; i <= fs->super->s_inodes_count && i > 0; i++) {
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
goto errout;
if ((i % fs->super->s_inodes_per_group) == 0) {
group++;
if (ctx->progress)
if ((ctx->progress)(ctx, 4, group, maxgroup))
goto errout;
}
if (i == EXT2_BAD_INO ||
(i > EXT2_ROOT_INO && i < EXT2_FIRST_INODE(fs->super)))
continue;
if (!(ext2fs_test_inode_bitmap(ctx->inode_used_map, i)) ||
(ctx->inode_imagic_map &&
ext2fs_test_inode_bitmap(ctx->inode_imagic_map, i)) ||
(ctx->inode_bb_map &&
ext2fs_test_inode_bitmap(ctx->inode_bb_map, i)))
continue;
ext2fs_icount_fetch(ctx->inode_link_info, i, &link_count);
ext2fs_icount_fetch(ctx->inode_count, i, &link_counted);
if (link_counted == 0) {
if (!buf)
buf = e2fsck_allocate_memory(ctx,
fs->blocksize, "bad_inode buffer");
if (e2fsck_process_bad_inode(ctx, 0, i, buf))
continue;
if (disconnect_inode(ctx, i))
continue;
ext2fs_icount_fetch(ctx->inode_link_info, i,
&link_count);
ext2fs_icount_fetch(ctx->inode_count, i,
&link_counted);
}
if (link_counted != link_count) {
e2fsck_read_inode(ctx, i, &inode, "pass4");
pctx.ino = i;
pctx.inode = &inode;
if (link_count != inode.i_links_count) {
pctx.num = link_count;
fix_problem(ctx,
PR_4_INCONSISTENT_COUNT, &pctx);
}
pctx.num = link_counted;
if (fix_problem(ctx, PR_4_BAD_REF_COUNT, &pctx)) {
inode.i_links_count = link_counted;
e2fsck_write_inode(ctx, i, &inode, "pass4");
}
}
}
ext2fs_free_icount(ctx->inode_link_info); ctx->inode_link_info = 0;
ext2fs_free_icount(ctx->inode_count); ctx->inode_count = 0;
ext2fs_free_inode_bitmap(ctx->inode_bb_map);
ctx->inode_bb_map = 0;
ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
ctx->inode_imagic_map = 0;
errout:
if (buf)
ext2fs_free_mem(&buf);
#ifdef RESOURCE_TRACK
if (ctx->options & E2F_OPT_TIME2) {
e2fsck_clear_progbar(ctx);
print_resource_track(_("Pass 4"), &rtrack);
}
#endif
}
static void check_inode_bitmaps(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
ext2_ino_t i;
unsigned int free_inodes = 0;
int group_free = 0;
int dirs_count = 0;
int group = 0;
unsigned int inodes = 0;
int *free_array;
int *dir_array;
int actual, bitmap;
errcode_t retval;
struct problem_context pctx;
int problem, save_problem, fixit, had_problem;
int lazy_bg = 0;
int skip_group = 0;
clear_problem_context(&pctx);
free_array = (int *) e2fsck_allocate_memory(ctx,
fs->group_desc_count * sizeof(int), "free inode count array");
dir_array = (int *) e2fsck_allocate_memory(ctx,
fs->group_desc_count * sizeof(int), "directory count array");
if ((1 < ext2fs_get_inode_bitmap_start(ctx->inode_used_map)) ||
(fs->super->s_inodes_count >
ext2fs_get_inode_bitmap_end(ctx->inode_used_map))) {
pctx.num = 3;
pctx.blk = 1;
pctx.blk2 = fs->super->s_inodes_count;
pctx.ino = ext2fs_get_inode_bitmap_start(ctx->inode_used_map);
pctx.ino2 = ext2fs_get_inode_bitmap_end(ctx->inode_used_map);
fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
ctx->flags |= E2F_FLAG_ABORT; /* fatal */
goto errout;
}
if ((1 < ext2fs_get_inode_bitmap_start(fs->inode_map)) ||
(fs->super->s_inodes_count >
ext2fs_get_inode_bitmap_end(fs->inode_map))) {
pctx.num = 4;
pctx.blk = 1;
pctx.blk2 = fs->super->s_inodes_count;
pctx.ino = ext2fs_get_inode_bitmap_start(fs->inode_map);
pctx.ino2 = ext2fs_get_inode_bitmap_end(fs->inode_map);
fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
ctx->flags |= E2F_FLAG_ABORT; /* fatal */
goto errout;
}
if (EXT2_HAS_COMPAT_FEATURE(fs->super,
EXT2_FEATURE_COMPAT_LAZY_BG))
lazy_bg++;
redo_counts:
had_problem = 0;
save_problem = 0;
pctx.ino = pctx.ino2 = 0;
if (lazy_bg && (fs->group_desc[group].bg_flags &
EXT2_BG_INODE_UNINIT))
skip_group++;
/* Protect loop from wrap-around if inodes_count is maxed */
for (i = 1; i <= fs->super->s_inodes_count && i > 0; i++) {
actual = ext2fs_fast_test_inode_bitmap(ctx->inode_used_map, i);
if (skip_group)
bitmap = 0;
else
bitmap = ext2fs_fast_test_inode_bitmap(fs->inode_map, i);
if (actual == bitmap)
goto do_counts;
if (!actual && bitmap) {
/*
* Inode wasn't used, but marked in bitmap
*/
problem = PR_5_INODE_UNUSED;
} else /* if (actual && !bitmap) */ {
/*
* Inode used, but not in bitmap
*/
problem = PR_5_INODE_USED;
}
if (pctx.ino == 0) {
pctx.ino = pctx.ino2 = i;
save_problem = problem;
} else {
if ((problem == save_problem) &&
(pctx.ino2 == i-1))
pctx.ino2++;
else {
print_bitmap_problem(ctx, save_problem, &pctx);
pctx.ino = pctx.ino2 = i;
save_problem = problem;
}
}
ctx->flags |= E2F_FLAG_PROG_SUPPRESS;
had_problem++;
do_counts:
if (bitmap) {
if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, i))
dirs_count++;
} else if (!skip_group) {
group_free++;
free_inodes++;
}
inodes++;
if ((inodes == fs->super->s_inodes_per_group) ||
(i == fs->super->s_inodes_count)) {
free_array[group] = group_free;
dir_array[group] = dirs_count;
group ++;
inodes = 0;
skip_group = 0;
group_free = 0;
dirs_count = 0;
if (ctx->progress)
if ((ctx->progress)(ctx, 5,
group + fs->group_desc_count,
fs->group_desc_count*2))
goto errout;
if (lazy_bg &&
(i != fs->super->s_inodes_count) &&
(fs->group_desc[group].bg_flags &
EXT2_BG_INODE_UNINIT))
skip_group++;
}
}
if (pctx.ino)
print_bitmap_problem(ctx, save_problem, &pctx);
if (had_problem)
fixit = end_problem_latch(ctx, PR_LATCH_IBITMAP);
else
fixit = -1;
ctx->flags &= ~E2F_FLAG_PROG_SUPPRESS;
if (fixit == 1) {
ext2fs_free_inode_bitmap(fs->inode_map);
retval = ext2fs_copy_bitmap(ctx->inode_used_map,
&fs->inode_map);
if (retval) {
clear_problem_context(&pctx);
fix_problem(ctx, PR_5_COPY_IBITMAP_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
goto errout;
}
ext2fs_set_bitmap_padding(fs->inode_map);
ext2fs_mark_ib_dirty(fs);
/* redo counts */
inodes = 0; free_inodes = 0; group_free = 0;
dirs_count = 0; group = 0;
memset(free_array, 0, fs->group_desc_count * sizeof(int));
memset(dir_array, 0, fs->group_desc_count * sizeof(int));
goto redo_counts;
} else if (fixit == 0)
ext2fs_unmark_valid(fs);
for (i = 0; i < fs->group_desc_count; i++) {
if (free_array[i] != fs->group_desc[i].bg_free_inodes_count) {
pctx.group = i;
pctx.ino = fs->group_desc[i].bg_free_inodes_count;
pctx.ino2 = free_array[i];
if (fix_problem(ctx, PR_5_FREE_INODE_COUNT_GROUP,
&pctx)) {
fs->group_desc[i].bg_free_inodes_count =
free_array[i];
ext2fs_mark_super_dirty(fs);
} else
ext2fs_unmark_valid(fs);
}
if (dir_array[i] != fs->group_desc[i].bg_used_dirs_count) {
pctx.group = i;
pctx.ino = fs->group_desc[i].bg_used_dirs_count;
pctx.ino2 = dir_array[i];
if (fix_problem(ctx, PR_5_FREE_DIR_COUNT_GROUP,
&pctx)) {
fs->group_desc[i].bg_used_dirs_count =
dir_array[i];
ext2fs_mark_super_dirty(fs);
} else
ext2fs_unmark_valid(fs);
}
}
if (free_inodes != fs->super->s_free_inodes_count) {
pctx.group = -1;
pctx.ino = fs->super->s_free_inodes_count;
pctx.ino2 = free_inodes;
if (fix_problem(ctx, PR_5_FREE_INODE_COUNT, &pctx)) {
fs->super->s_free_inodes_count = free_inodes;
ext2fs_mark_super_dirty(fs);
} else
ext2fs_unmark_valid(fs);
}
errout:
ext2fs_free_mem(&free_array);
ext2fs_free_mem(&dir_array);
}
/*
* 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;
ctx->lost_and_found = 0;
ctx->bad_lost_and_found = 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->inode_reg_map) {
ext2fs_free_inode_bitmap(ctx->inode_reg_map);
ctx->inode_reg_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->journal_io) {
if (ctx->fs && ctx->fs->io != ctx->journal_io)
io_channel_close(ctx->journal_io);
ctx->journal_io = 0;
}
if (ctx->fs && ctx->fs->dblist) {
ext2fs_free_dblist(ctx->fs->dblist);
ctx->fs->dblist = 0;
}
e2fsck_free_dir_info(ctx);
#ifdef ENABLE_HTREE
e2fsck_free_dx_dir_info(ctx);
#endif
if (ctx->refcount) {
ea_refcount_free(ctx->refcount);
ctx->refcount = 0;
}
if (ctx->refcount_extra) {
ea_refcount_free(ctx->refcount_extra);
ctx->refcount_extra = 0;
}
if (ctx->block_dup_map) {
ext2fs_free_block_bitmap(ctx->block_dup_map);
ctx->block_dup_map = 0;
}
if (ctx->block_ea_map) {
ext2fs_free_block_bitmap(ctx->block_ea_map);
ctx->block_ea_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;
}
if (ctx->inode_imagic_map) {
ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
ctx->inode_imagic_map = 0;
}
if (ctx->dirs_to_hash) {
ext2fs_u32_list_free(ctx->dirs_to_hash);
ctx->dirs_to_hash = 0;
}
/*
* Clear the array of invalid meta-data flags
*/
if (ctx->invalid_inode_bitmap_flag) {
ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag);
ctx->invalid_inode_bitmap_flag = 0;
}
if (ctx->invalid_block_bitmap_flag) {
ext2fs_free_mem(&ctx->invalid_block_bitmap_flag);
ctx->invalid_block_bitmap_flag = 0;
}
if (ctx->invalid_inode_table_flag) {
ext2fs_free_mem(&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;
ctx->large_files = 0;
/* Reset the superblock to the user's requested value */
ctx->superblock = ctx->use_superblock;
return 0;
}
static errcode_t read_bitmaps(ext2_filsys fs, int do_inode, int do_block)
{
dgrp_t i;
char *block_bitmap = 0, *inode_bitmap = 0;
char *buf;
errcode_t retval;
int block_nbytes = EXT2_CLUSTERS_PER_GROUP(fs->super) / 8;
int inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8;
int csum_flag = 0;
unsigned int cnt;
blk64_t blk;
blk64_t blk_itr = EXT2FS_B2C(fs, fs->super->s_first_data_block);
blk64_t blk_cnt;
ext2_ino_t ino_itr = 1;
ext2_ino_t ino_cnt;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
if ((block_nbytes > fs->blocksize) || (inode_nbytes > fs->blocksize))
return EXT2_ET_CORRUPT_SUPERBLOCK;
fs->write_bitmaps = ext2fs_write_bitmaps;
if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
csum_flag = 1;
retval = ext2fs_get_mem(strlen(fs->device_name) + 80, &buf);
if (retval)
return retval;
if (do_block) {
if (fs->block_map)
ext2fs_free_block_bitmap(fs->block_map);
strcpy(buf, "block bitmap for ");
strcat(buf, fs->device_name);
retval = ext2fs_allocate_block_bitmap(fs, buf, &fs->block_map);
if (retval)
goto cleanup;
retval = io_channel_alloc_buf(fs->io, 0, &block_bitmap);
if (retval)
goto cleanup;
} else
block_nbytes = 0;
if (do_inode) {
if (fs->inode_map)
ext2fs_free_inode_bitmap(fs->inode_map);
strcpy(buf, "inode bitmap for ");
strcat(buf, fs->device_name);
retval = ext2fs_allocate_inode_bitmap(fs, buf, &fs->inode_map);
if (retval)
goto cleanup;
retval = io_channel_alloc_buf(fs->io, 0, &inode_bitmap);
if (retval)
goto cleanup;
} else
inode_nbytes = 0;
ext2fs_free_mem(&buf);
if (fs->flags & EXT2_FLAG_IMAGE_FILE) {
blk = (fs->image_header->offset_inodemap / fs->blocksize);
ino_cnt = fs->super->s_inodes_count;
while (inode_nbytes > 0) {
retval = io_channel_read_blk64(fs->image_io, blk++,
1, inode_bitmap);
if (retval)
goto cleanup;
cnt = fs->blocksize << 3;
if (cnt > ino_cnt)
cnt = ino_cnt;
retval = ext2fs_set_inode_bitmap_range2(fs->inode_map,
ino_itr, cnt, inode_bitmap);
if (retval)
goto cleanup;
ino_itr += fs->blocksize << 3;
ino_cnt -= fs->blocksize << 3;
inode_nbytes -= fs->blocksize;
}
blk = (fs->image_header->offset_blockmap /
fs->blocksize);
blk_cnt = (blk64_t)EXT2_CLUSTERS_PER_GROUP(fs->super) *
fs->group_desc_count;
while (block_nbytes > 0) {
retval = io_channel_read_blk64(fs->image_io, blk++,
1, block_bitmap);
if (retval)
goto cleanup;
cnt = fs->blocksize << 3;
if (cnt > blk_cnt)
cnt = blk_cnt;
retval = ext2fs_set_block_bitmap_range2(fs->block_map,
blk_itr, cnt, block_bitmap);
if (retval)
goto cleanup;
blk_itr += fs->blocksize << 3;
blk_cnt -= fs->blocksize << 3;
block_nbytes -= fs->blocksize;
}
goto success_cleanup;
}
for (i = 0; i < fs->group_desc_count; i++) {
if (block_bitmap) {
blk = ext2fs_block_bitmap_loc(fs, i);
if (csum_flag &&
ext2fs_bg_flags_test(fs, i, EXT2_BG_BLOCK_UNINIT) &&
ext2fs_group_desc_csum_verify(fs, i))
blk = 0;
if (blk) {
retval = io_channel_read_blk64(fs->io, blk,
1, block_bitmap);
if (retval) {
retval = EXT2_ET_BLOCK_BITMAP_READ;
goto cleanup;
}
} else
memset(block_bitmap, 0, block_nbytes);
cnt = block_nbytes << 3;
retval = ext2fs_set_block_bitmap_range2(fs->block_map,
blk_itr, cnt, block_bitmap);
if (retval)
goto cleanup;
blk_itr += block_nbytes << 3;
}
if (inode_bitmap) {
blk = ext2fs_inode_bitmap_loc(fs, i);
if (csum_flag &&
ext2fs_bg_flags_test(fs, i, EXT2_BG_INODE_UNINIT) &&
ext2fs_group_desc_csum_verify(fs, i))
blk = 0;
if (blk) {
retval = io_channel_read_blk64(fs->io, blk,
1, inode_bitmap);
if (retval) {
retval = EXT2_ET_INODE_BITMAP_READ;
goto cleanup;
}
} else
memset(inode_bitmap, 0, inode_nbytes);
cnt = inode_nbytes << 3;
retval = ext2fs_set_inode_bitmap_range2(fs->inode_map,
ino_itr, cnt, inode_bitmap);
if (retval)
goto cleanup;
ino_itr += inode_nbytes << 3;
}
}
success_cleanup:
if (inode_bitmap)
ext2fs_free_mem(&inode_bitmap);
if (block_bitmap)
ext2fs_free_mem(&block_bitmap);
return 0;
cleanup:
if (do_block) {
ext2fs_free_mem(&fs->block_map);
fs->block_map = 0;
}
if (do_inode) {
ext2fs_free_mem(&fs->inode_map);
fs->inode_map = 0;
}
if (inode_bitmap)
ext2fs_free_mem(&inode_bitmap);
if (block_bitmap)
ext2fs_free_mem(&block_bitmap);
if (buf)
ext2fs_free_mem(&buf);
return retval;
}
void e2fsck_pass4(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
ext2_ino_t i;
struct ext2_inode *inode;
#ifdef RESOURCE_TRACK
struct resource_track rtrack;
#endif
struct problem_context pctx;
__u16 link_count, link_counted;
char *buf = 0;
dgrp_t group, maxgroup;
init_resource_track(&rtrack, ctx->fs->io);
#ifdef MTRACE
mtrace_print("Pass 4");
#endif
clear_problem_context(&pctx);
if (!(ctx->options & E2F_OPT_PREEN))
fix_problem(ctx, PR_4_PASS_HEADER, &pctx);
group = 0;
maxgroup = fs->group_desc_count;
if (ctx->progress)
if ((ctx->progress)(ctx, 4, 0, maxgroup))
return;
inode = e2fsck_allocate_memory(ctx, EXT2_INODE_SIZE(fs->super),
"scratch inode");
/* Protect loop from wrap-around if s_inodes_count maxed */
for (i=1; i <= fs->super->s_inodes_count && i > 0; i++) {
int isdir;
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
goto errout;
if ((i % fs->super->s_inodes_per_group) == 0) {
group++;
if (ctx->progress)
if ((ctx->progress)(ctx, 4, group, maxgroup))
goto errout;
}
if (i == EXT2_BAD_INO ||
(i > EXT2_ROOT_INO && i < EXT2_FIRST_INODE(fs->super)))
continue;
if (!(ext2fs_test_inode_bitmap2(ctx->inode_used_map, i)) ||
(ctx->inode_imagic_map &&
ext2fs_test_inode_bitmap2(ctx->inode_imagic_map, i)) ||
(ctx->inode_bb_map &&
ext2fs_test_inode_bitmap2(ctx->inode_bb_map, i)))
continue;
ext2fs_icount_fetch(ctx->inode_link_info, i, &link_count);
ext2fs_icount_fetch(ctx->inode_count, i, &link_counted);
if (link_counted == 0) {
if (!buf)
buf = e2fsck_allocate_memory(ctx,
fs->blocksize, "bad_inode buffer");
if (e2fsck_process_bad_inode(ctx, 0, i, buf))
continue;
if (disconnect_inode(ctx, i, inode))
continue;
ext2fs_icount_fetch(ctx->inode_link_info, i,
&link_count);
ext2fs_icount_fetch(ctx->inode_count, i,
&link_counted);
}
isdir = ext2fs_test_inode_bitmap2(ctx->inode_dir_map, i);
if (isdir && (link_counted > EXT2_LINK_MAX))
link_counted = 1;
if (link_counted != link_count) {
e2fsck_read_inode(ctx, i, inode, "pass4");
pctx.ino = i;
pctx.inode = inode;
if ((link_count != inode->i_links_count) && !isdir &&
(inode->i_links_count <= EXT2_LINK_MAX)) {
pctx.num = link_count;
fix_problem(ctx,
PR_4_INCONSISTENT_COUNT, &pctx);
}
pctx.num = link_counted;
/* i_link_count was previously exceeded, but no longer
* is, fix this but don't consider it an error */
if ((isdir && link_counted > 1 &&
(inode->i_flags & EXT2_INDEX_FL) &&
link_count == 1 && !(ctx->options & E2F_OPT_NO)) ||
fix_problem(ctx, PR_4_BAD_REF_COUNT, &pctx)) {
inode->i_links_count = link_counted;
e2fsck_write_inode(ctx, i, inode, "pass4");
}
}
}
ext2fs_free_icount(ctx->inode_link_info); ctx->inode_link_info = 0;
ext2fs_free_icount(ctx->inode_count); ctx->inode_count = 0;
ext2fs_free_inode_bitmap(ctx->inode_bb_map);
ctx->inode_bb_map = 0;
ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
ctx->inode_imagic_map = 0;
errout:
if (buf)
ext2fs_free_mem(&buf);
ext2fs_free_mem(&inode);
print_resource_track(ctx, _("Pass 4"), &rtrack, ctx->fs->io);
}