int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
dgrp_t group,
ext2fs_block_bitmap bmap)
{
blk_t super_blk, old_desc_blk, new_desc_blk;
int j, old_desc_blocks, num_blocks;
num_blocks = ext2fs_super_and_bgd_loc(fs, group, &super_blk,
&old_desc_blk, &new_desc_blk, 0);
if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG)
old_desc_blocks = fs->super->s_first_meta_bg;
else
old_desc_blocks =
fs->desc_blocks + fs->super->s_reserved_gdt_blocks;
if (super_blk || (group == 0))
ext2fs_mark_block_bitmap(bmap, super_blk);
if (old_desc_blk) {
for (j=0; j < old_desc_blocks; j++)
ext2fs_mark_block_bitmap(bmap, old_desc_blk + j);
}
if (new_desc_blk)
ext2fs_mark_block_bitmap(bmap, new_desc_blk);
return num_blocks;
}
void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse)
{
int group = ext2fs_group_of_blk(fs, blk);
#ifndef OMIT_COM_ERR
if (blk >= fs->super->s_blocks_count) {
com_err("ext2fs_block_alloc_stats", 0,
"Illegal block number: %lu", (unsigned long) blk);
return;
}
#endif
if (inuse > 0)
ext2fs_mark_block_bitmap(fs->block_map, blk);
else
ext2fs_unmark_block_bitmap(fs->block_map, blk);
fs->group_desc[group].bg_free_blocks_count -= inuse;
fs->group_desc[group].bg_flags &= ~EXT2_BG_BLOCK_UNINIT;
ext2fs_group_desc_csum_set(fs, group);
fs->super->s_free_blocks_count -= inuse;
ext2fs_mark_super_dirty(fs);
ext2fs_mark_bb_dirty(fs);
if (fs->block_alloc_stats)
(fs->block_alloc_stats)(fs, (blk64_t) blk, inuse);
}
static int process_block(ext2_filsys fs, blk_t *block_nr,
e2_blkcnt_t blockcnt, blk_t ref_block,
int ref_offset, void *priv_data)
{
struct process_block_struct *pb;
errcode_t retval;
int ret;
blk_t block, orig;
pb = (struct process_block_struct *) priv_data;
block = orig = *block_nr;
ret = 0;
/*
* Let's see if this is one which we need to relocate
*/
if (ext2fs_test_block_bitmap(pb->reserve, block)) {
do {
if (++block >= fs->super->s_blocks_count)
block = fs->super->s_first_data_block;
if (block == orig) {
pb->error = EXT2_ET_BLOCK_ALLOC_FAIL;
return BLOCK_ABORT;
}
} while (ext2fs_test_block_bitmap(pb->reserve, block) ||
ext2fs_test_block_bitmap(pb->alloc_map, block));
retval = io_channel_read_blk(fs->io, orig, 1, pb->buf);
if (retval) {
pb->error = retval;
return BLOCK_ABORT;
}
retval = io_channel_write_blk(fs->io, block, 1, pb->buf);
if (retval) {
pb->error = retval;
return BLOCK_ABORT;
}
*block_nr = block;
ext2fs_mark_block_bitmap(pb->alloc_map, block);
ret = BLOCK_CHANGED;
if (pb->flags & EXT2_BMOVE_DEBUG)
printf("ino=%ld, blockcnt=%lld, %u->%u\n", pb->ino,
blockcnt, orig, block);
}
if (pb->add_dir) {
retval = ext2fs_add_dir_block(fs->dblist, pb->ino,
block, (int) blockcnt);
if (retval) {
pb->error = retval;
ret |= BLOCK_ABORT;
}
}
return ret;
}
void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse)
{
int group = ext2fs_group_of_blk(fs, blk);
if (inuse > 0)
ext2fs_mark_block_bitmap(fs->block_map, blk);
else
ext2fs_unmark_block_bitmap(fs->block_map, blk);
fs->group_desc[group].bg_free_blocks_count -= inuse;
fs->super->s_free_blocks_count -= inuse;
ext2fs_mark_super_dirty(fs);
ext2fs_mark_bb_dirty(fs);
}
static void check_block_end(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
blk_t end, save_blocks_count, i;
struct problem_context pctx;
clear_problem_context(&pctx);
end = fs->block_map->start +
(EXT2_BLOCKS_PER_GROUP(fs->super) * fs->group_desc_count) - 1;
pctx.errcode = ext2fs_fudge_block_bitmap_end(fs->block_map, end,
&save_blocks_count);
if (pctx.errcode) {
pctx.num = 3;
fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT; /* fatal */
return;
}
if (save_blocks_count == end)
return;
/* Protect loop from wrap-around if end is maxed */
for (i = save_blocks_count + 1; i <= end && i > save_blocks_count; i++) {
if (!ext2fs_test_block_bitmap(fs->block_map, i)) {
if (fix_problem(ctx, PR_5_BLOCK_BMAP_PADDING, &pctx)) {
for (i = save_blocks_count + 1; i <= end; i++)
ext2fs_mark_block_bitmap(fs->block_map,
i);
ext2fs_mark_bb_dirty(fs);
} else
ext2fs_unmark_valid(fs);
break;
}
}
pctx.errcode = ext2fs_fudge_block_bitmap_end(fs->block_map,
save_blocks_count, 0);
if (pctx.errcode) {
pctx.num = 4;
fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT; /* fatal */
return;
}
}
void add_empty_dirblock(empty_dir_info edi,
struct ext2_db_entry *db)
{
if (!edi || !db)
return;
if (db->ino == 11)
return;
printf(_("Empty directory block %u (#%d) in inode %u\n"),
db->blk, db->blockcnt, db->ino);
ext2fs_mark_block_bitmap(edi->empty_dir_blocks, db->blk);
if (ext2fs_test_inode_bitmap(edi->dir_map, db->ino))
return;
ext2fs_mark_inode_bitmap(edi->dir_map, db->ino);
ext2fs_add_dir_block(edi->empty_dblist, db->ino,
db->blk, db->blockcnt);
}
static void test_read_blk(unsigned long block, int count, errcode_t err)
{
int i;
if (first_no_comma)
first_no_comma = 0;
else
printf(", ");
if (count > 1)
printf("%lu-%lu", block, block+count-1);
else
printf("%lu", block);
for (i=0; i < count; i++, block++) {
if (ext2fs_test_block_bitmap(touched_map, block)) {
printf("\nDuplicate block?!? --- %lu\n", block);
failed++;
first_no_comma = 1;
}
ext2fs_mark_block_bitmap(touched_map, block);
}
}
/*
* Verify the touched map
*/
static void check_map(void)
{
int i, j, first=1;
unsigned long blk;
for (i=0; test_vec[i]; i++) {
if (ext2fs_test_block_bitmap(touched_map, test_vec[i])) {
printf("Bad block was touched --- %u\n", test_vec[i]);
failed++;
first_no_comma = 1;
}
ext2fs_mark_block_bitmap(touched_map, test_vec[i]);
}
for (i = 0; i < test_fs->group_desc_count; i++) {
for (j=0, blk = test_fs->group_desc[i].bg_inode_table;
j < test_fs->inode_blocks_per_group;
j++, blk++) {
if (!ext2fs_test_block_bitmap(touched_map, blk) &&
!ext2fs_test_block_bitmap(bad_block_map, blk)) {
printf("Missing block --- %lu\n", blk);
failed++;
}
}
}
printf("Bad inodes: ");
for (i=1; i <= test_fs->super->s_inodes_count; i++) {
if (ext2fs_test_inode_bitmap(bad_inode_map, i)) {
if (first)
first = 0;
else
printf(", ");
printf("%u", i);
}
}
printf("\n");
}
static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
{
dgrp_t i;
blk_t j;
unsigned must_be_good;
blk_t blk;
badblocks_iterate bb_iter;
errcode_t retval;
blk_t group_block;
int group;
int group_bad;
if (!bb_list)
return;
/*
* The primary superblock and group descriptors *must* be
* good; if not, abort.
*/
must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
if (ext2fs_badblocks_list_test(bb_list, i)) {
fprintf(stderr, _("Block %d in primary "
"superblock/group descriptor area bad.\n"), i);
fprintf(stderr, _("Blocks %u through %d must be good "
"in order to build a filesystem.\n"),
fs->super->s_first_data_block, must_be_good);
fputs(_("Aborting....\n"), stderr);
exit(1);
}
}
/*
* See if any of the bad blocks are showing up in the backup
* superblocks and/or group descriptors. If so, issue a
* warning and adjust the block counts appropriately.
*/
group_block = fs->super->s_first_data_block +
fs->super->s_blocks_per_group;
for (i = 1; i < fs->group_desc_count; i++) {
group_bad = 0;
for (j=0; j < fs->desc_blocks+1; j++) {
if (ext2fs_badblocks_list_test(bb_list,
group_block + j)) {
if (!group_bad)
fprintf(stderr,
_("Warning: the backup superblock/group descriptors at block %u contain\n"
" bad blocks.\n\n"),
group_block);
group_bad++;
group = ext2fs_group_of_blk(fs, group_block+j);
fs->group_desc[group].bg_free_blocks_count++;
fs->super->s_free_blocks_count++;
}
}
group_block += fs->super->s_blocks_per_group;
}
/*
* Mark all the bad blocks as used...
*/
retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
if (retval) {
com_err("ext2fs_badblocks_list_iterate_begin", retval,
_("while marking bad blocks as used"));
exit(1);
}
while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
ext2fs_mark_block_bitmap(fs->block_map, blk);
ext2fs_badblocks_list_iterate_end(bb_iter);
}
errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
ext2fs_block_bitmap bmap)
{
errcode_t retval;
blk_t group_blk, start_blk, last_blk, new_blk, blk;
int j;
group_blk = ext2fs_group_first_block(fs, group);
last_blk = ext2fs_group_last_block(fs, group);
if (!bmap)
bmap = fs->block_map;
/*
* Allocate the block and inode bitmaps, if necessary
*/
if (fs->stride) {
retval = ext2fs_get_free_blocks(fs, group_blk, last_blk,
1, bmap, &start_blk);
if (retval)
return retval;
start_blk += fs->inode_blocks_per_group;
start_blk += ((fs->stride * group) %
(last_blk - start_blk + 1));
if (start_blk >= last_blk)
start_blk = group_blk;
} else
start_blk = group_blk;
if (!fs->group_desc[group].bg_block_bitmap) {
retval = ext2fs_get_free_blocks(fs, start_blk, last_blk,
1, bmap, &new_blk);
if (retval == EXT2_ET_BLOCK_ALLOC_FAIL)
retval = ext2fs_get_free_blocks(fs, group_blk,
last_blk, 1, bmap, &new_blk);
if (retval)
return retval;
ext2fs_mark_block_bitmap(bmap, new_blk);
fs->group_desc[group].bg_block_bitmap = new_blk;
}
if (!fs->group_desc[group].bg_inode_bitmap) {
retval = ext2fs_get_free_blocks(fs, start_blk, last_blk,
1, bmap, &new_blk);
if (retval == EXT2_ET_BLOCK_ALLOC_FAIL)
retval = ext2fs_get_free_blocks(fs, group_blk,
last_blk, 1, bmap, &new_blk);
if (retval)
return retval;
ext2fs_mark_block_bitmap(bmap, new_blk);
fs->group_desc[group].bg_inode_bitmap = new_blk;
}
/*
* Allocate the inode table
*/
if (!fs->group_desc[group].bg_inode_table) {
retval = ext2fs_get_free_blocks(fs, group_blk, last_blk,
fs->inode_blocks_per_group,
bmap, &new_blk);
if (retval)
return retval;
for (j=0, blk = new_blk;
j < fs->inode_blocks_per_group;
j++, blk++)
ext2fs_mark_block_bitmap(bmap, blk);
fs->group_desc[group].bg_inode_table = new_blk;
}
return 0;
}
/*
* Setup the variables for doing the inode scan test.
*/
static void setup(void)
{
errcode_t retval;
int i;
struct ext2_super_block param;
initialize_ext2_error_table();
memset(¶m, 0, sizeof(param));
param.s_blocks_count = 12000;
test_io_cb_read_blk = test_read_blk;
retval = ext2fs_initialize("test fs", 0, ¶m,
test_io_manager, &test_fs);
if (retval) {
com_err("setup", retval,
"While initializing filesystem");
exit(1);
}
retval = ext2fs_allocate_tables(test_fs);
if (retval) {
com_err("setup", retval,
"While allocating tables for test filesystem");
exit(1);
}
retval = ext2fs_allocate_block_bitmap(test_fs, "bad block map",
&bad_block_map);
if (retval) {
com_err("setup", retval,
"While allocating bad_block bitmap");
exit(1);
}
retval = ext2fs_allocate_block_bitmap(test_fs, "touched map",
&touched_map);
if (retval) {
com_err("setup", retval,
"While allocating touched block bitmap");
exit(1);
}
retval = ext2fs_allocate_inode_bitmap(test_fs, "bad inode map",
&bad_inode_map);
if (retval) {
com_err("setup", retval,
"While allocating bad inode bitmap");
exit(1);
}
retval = ext2fs_badblocks_list_create(&test_badblocks, 5);
if (retval) {
com_err("setup", retval, "while creating badblocks list");
exit(1);
}
for (i=0; test_vec[i]; i++) {
retval = ext2fs_badblocks_list_add(test_badblocks, test_vec[i]);
if (retval) {
com_err("setup", retval,
"while adding test vector %d", i);
exit(1);
}
ext2fs_mark_block_bitmap(bad_block_map, test_vec[i]);
}
test_fs->badblocks = test_badblocks;
}
errcode_t ext2fs_check_desc(ext2_filsys fs)
{
ext2fs_block_bitmap bmap;
errcode_t retval;
dgrp_t i;
blk_t first_block = fs->super->s_first_data_block;
blk_t last_block = fs->super->s_blocks_count-1;
blk_t blk, b;
int j;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
retval = ext2fs_allocate_block_bitmap(fs, "check_desc map", &bmap);
if (retval)
return retval;
for (i = 0; i < fs->group_desc_count; i++)
ext2fs_reserve_super_and_bgd(fs, i, bmap);
for (i = 0; i < fs->group_desc_count; i++) {
if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
first_block = ext2fs_group_first_block(fs, i);
last_block = ext2fs_group_last_block(fs, i);
if (i == (fs->group_desc_count - 1))
last_block = fs->super->s_blocks_count-1;
}
blk = fs->group_desc[i].bg_block_bitmap;
if (blk < first_block || blk > last_block ||
ext2fs_test_block_bitmap(bmap, blk)) {
retval = EXT2_ET_GDESC_BAD_BLOCK_MAP;
goto errout;
}
ext2fs_mark_block_bitmap(bmap, blk);
blk = fs->group_desc[i].bg_inode_bitmap;
if (blk < first_block || blk > last_block ||
ext2fs_test_block_bitmap(bmap, blk)) {
retval = EXT2_ET_GDESC_BAD_INODE_MAP;
goto errout;
}
ext2fs_mark_block_bitmap(bmap, blk);
blk = fs->group_desc[i].bg_inode_table;
if (blk < first_block ||
((blk + fs->inode_blocks_per_group - 1) > last_block)) {
retval = EXT2_ET_GDESC_BAD_INODE_TABLE;
goto errout;
}
for (j = 0, b = blk; j < fs->inode_blocks_per_group;
j++, b++) {
if (ext2fs_test_block_bitmap(bmap, b)) {
retval = EXT2_ET_GDESC_BAD_INODE_TABLE;
goto errout;
}
ext2fs_mark_block_bitmap(bmap, b);
}
}
errout:
ext2fs_free_block_bitmap(bmap);
return retval;
}
/*
* allocate_dir_block --- this function allocates a new directory
* block for a particular inode; this is done if a directory has
* a "hole" in it, or if a directory has a illegal block number
* that was zeroed out and now needs to be replaced.
*/
static int allocate_dir_block(e2fsck_t ctx,
struct ext2_db_entry *db,
char *buf, struct problem_context *pctx)
{
ext2_filsys fs = ctx->fs;
blk_t blk;
char *block;
struct ext2_inode inode;
if (fix_problem(ctx, PR_2_DIRECTORY_HOLE, pctx) == 0)
return 1;
/*
* Read the inode and block bitmaps in; we'll be messing with
* them.
*/
e2fsck_read_bitmaps(ctx);
/*
* First, find a free block
*/
pctx->errcode = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk);
if (pctx->errcode) {
pctx->str = "ext2fs_new_block";
fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
return 1;
}
ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
ext2fs_mark_block_bitmap(fs->block_map, blk);
ext2fs_mark_bb_dirty(fs);
/*
* Now let's create the actual data block for the inode
*/
if (db->blockcnt)
pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block);
else
pctx->errcode = ext2fs_new_dir_block(fs, db->ino,
EXT2_ROOT_INO, &block);
if (pctx->errcode) {
pctx->str = "ext2fs_new_dir_block";
fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
return 1;
}
pctx->errcode = ext2fs_write_dir_block(fs, blk, block);
ext2fs_free_mem((void **) &block);
if (pctx->errcode) {
pctx->str = "ext2fs_write_dir_block";
fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
return 1;
}
/*
* Update the inode block count
*/
e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block");
inode.i_blocks += fs->blocksize / 512;
if (inode.i_size < (db->blockcnt+1) * fs->blocksize)
inode.i_size = (db->blockcnt+1) * fs->blocksize;
e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block");
/*
* Finally, update the block pointers for the inode
*/
db->blk = blk;
pctx->errcode = ext2fs_block_iterate2(fs, db->ino, BLOCK_FLAG_HOLE,
0, update_dir_block, db);
if (pctx->errcode) {
pctx->str = "ext2fs_block_iterate";
fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
return 1;
}
return 0;
}
/*
* This routine gets the lost_and_found inode, making it a directory
* if necessary
*/
ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix)
{
ext2_filsys fs = ctx->fs;
ext2_ino_t ino;
blk_t blk;
errcode_t retval;
struct ext2_inode inode;
char * block;
static const char name[] = "lost+found";
struct problem_context pctx;
if (ctx->lost_and_found)
return ctx->lost_and_found;
clear_problem_context(&pctx);
retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name,
sizeof(name)-1, 0, &ino);
if (retval && !fix)
return 0;
if (!retval) {
if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, ino)) {
ctx->lost_and_found = ino;
return ino;
}
/* Lost+found isn't a directory! */
if (!fix)
return 0;
pctx.ino = ino;
if (!fix_problem(ctx, PR_3_LPF_NOTDIR, &pctx))
return 0;
/* OK, unlink the old /lost+found file. */
pctx.errcode = ext2fs_unlink(fs, EXT2_ROOT_INO, name, ino, 0);
if (pctx.errcode) {
pctx.str = "ext2fs_unlink";
fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
return 0;
}
(void) e2fsck_dir_info_set_parent(ctx, ino, 0);
e2fsck_adjust_inode_count(ctx, ino, -1);
} else if (retval != EXT2_ET_FILE_NOT_FOUND) {
pctx.errcode = retval;
fix_problem(ctx, PR_3_ERR_FIND_LPF, &pctx);
}
if (!fix_problem(ctx, PR_3_NO_LF_DIR, 0))
return 0;
/*
* Read the inode and block bitmaps in; we'll be messing with
* them.
*/
e2fsck_read_bitmaps(ctx);
/*
* First, find a free block
*/
retval = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk);
if (retval) {
pctx.errcode = retval;
fix_problem(ctx, PR_3_ERR_LPF_NEW_BLOCK, &pctx);
return 0;
}
ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
ext2fs_block_alloc_stats(fs, blk, +1);
/*
* Next find a free inode.
*/
retval = ext2fs_new_inode(fs, EXT2_ROOT_INO, 040700,
ctx->inode_used_map, &ino);
if (retval) {
pctx.errcode = retval;
fix_problem(ctx, PR_3_ERR_LPF_NEW_INODE, &pctx);
return 0;
}
ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
ext2fs_mark_inode_bitmap(ctx->inode_dir_map, ino);
ext2fs_inode_alloc_stats2(fs, ino, +1, 1);
/*
* Now let's create the actual data block for the inode
*/
retval = ext2fs_new_dir_block(fs, ino, EXT2_ROOT_INO, &block);
if (retval) {
pctx.errcode = retval;
fix_problem(ctx, PR_3_ERR_LPF_NEW_DIR_BLOCK, &pctx);
return 0;
}
retval = ext2fs_write_dir_block(fs, blk, block);
ext2fs_free_mem(&block);
if (retval) {
pctx.errcode = retval;
fix_problem(ctx, PR_3_ERR_LPF_WRITE_BLOCK, &pctx);
return 0;
}
/*
* Set up the inode structure
*/
memset(&inode, 0, sizeof(inode));
inode.i_mode = 040700;
inode.i_size = fs->blocksize;
inode.i_atime = inode.i_ctime = inode.i_mtime = ctx->now;
inode.i_links_count = 2;
ext2fs_iblk_set(fs, &inode, 1);
inode.i_block[0] = blk;
/*
* Next, write out the inode.
*/
pctx.errcode = ext2fs_write_new_inode(fs, ino, &inode);
if (pctx.errcode) {
pctx.str = "ext2fs_write_inode";
fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
return 0;
}
/*
* Finally, create the directory link
*/
pctx.errcode = ext2fs_link(fs, EXT2_ROOT_INO, name, ino, EXT2_FT_DIR);
if (pctx.errcode) {
pctx.str = "ext2fs_link";
fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
return 0;
}
/*
* Miscellaneous bookkeeping that needs to be kept straight.
*/
e2fsck_add_dir_info(ctx, ino, EXT2_ROOT_INO);
e2fsck_adjust_inode_count(ctx, EXT2_ROOT_INO, 1);
ext2fs_icount_store(ctx->inode_count, ino, 2);
ext2fs_icount_store(ctx->inode_link_info, ino, 2);
ctx->lost_and_found = ino;
#if 0
printf("/lost+found created; inode #%lu\n", ino);
#endif
return ino;
}
/*
* This makes sure the root inode is present; if not, we ask if the
* user wants us to create it. Not creating it is a fatal error.
*/
static void check_root(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
blk_t blk;
struct ext2_inode inode;
char * block;
struct problem_context pctx;
clear_problem_context(&pctx);
if (ext2fs_test_inode_bitmap(ctx->inode_used_map, EXT2_ROOT_INO)) {
/*
* If the root inode is not a directory, die here. The
* user must have answered 'no' in pass1 when we
* offered to clear it.
*/
if (!(ext2fs_test_inode_bitmap(ctx->inode_dir_map,
EXT2_ROOT_INO))) {
fix_problem(ctx, PR_3_ROOT_NOT_DIR_ABORT, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
}
return;
}
if (!fix_problem(ctx, PR_3_NO_ROOT_INODE, &pctx)) {
fix_problem(ctx, PR_3_NO_ROOT_INODE_ABORT, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
e2fsck_read_bitmaps(ctx);
/*
* First, find a free block
*/
pctx.errcode = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk);
if (pctx.errcode) {
pctx.str = "ext2fs_new_block";
fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
ext2fs_mark_block_bitmap(fs->block_map, blk);
ext2fs_mark_bb_dirty(fs);
/*
* Now let's create the actual data block for the inode
*/
pctx.errcode = ext2fs_new_dir_block(fs, EXT2_ROOT_INO, EXT2_ROOT_INO,
&block);
if (pctx.errcode) {
pctx.str = "ext2fs_new_dir_block";
fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
pctx.errcode = ext2fs_write_dir_block(fs, blk, block);
if (pctx.errcode) {
pctx.str = "ext2fs_write_dir_block";
fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
ext2fs_free_mem(&block);
/*
* Set up the inode structure
*/
memset(&inode, 0, sizeof(inode));
inode.i_mode = 040755;
inode.i_size = fs->blocksize;
inode.i_atime = inode.i_ctime = inode.i_mtime = ctx->now;
inode.i_links_count = 2;
ext2fs_iblk_set(fs, &inode, 1);
inode.i_block[0] = blk;
/*
* Write out the inode.
*/
pctx.errcode = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
if (pctx.errcode) {
pctx.str = "ext2fs_write_inode";
fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
/*
* Miscellaneous bookkeeping...
*/
e2fsck_add_dir_info(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO);
ext2fs_icount_store(ctx->inode_count, EXT2_ROOT_INO, 2);
ext2fs_icount_store(ctx->inode_link_info, EXT2_ROOT_INO, 2);
ext2fs_mark_inode_bitmap(ctx->inode_used_map, EXT2_ROOT_INO);
ext2fs_mark_inode_bitmap(ctx->inode_dir_map, EXT2_ROOT_INO);
ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_ROOT_INO);
ext2fs_mark_ib_dirty(fs);
}
