1997-04-26 17:21:57 +04:00
|
|
|
/*
|
|
|
|
* mkdir.c --- make a directory in the filesystem
|
2008-08-28 07:07:54 +04:00
|
|
|
*
|
1997-04-29 20:17:09 +04:00
|
|
|
* Copyright (C) 1994, 1995 Theodore Ts'o.
|
|
|
|
*
|
|
|
|
* %Begin-Header%
|
2010-05-18 05:31:56 +04:00
|
|
|
* This file may be redistributed under the terms of the GNU Library
|
|
|
|
* General Public License, version 2.
|
1997-04-29 20:17:09 +04:00
|
|
|
* %End-Header%
|
1997-04-26 17:21:57 +04:00
|
|
|
*/
|
|
|
|
|
2011-09-19 01:34:37 +04:00
|
|
|
#include "config.h"
|
1997-04-26 17:21:57 +04:00
|
|
|
#include <stdio.h>
|
|
|
|
#include <string.h>
|
1997-08-11 03:07:40 +04:00
|
|
|
#if HAVE_UNISTD_H
|
1997-04-26 17:21:57 +04:00
|
|
|
#include <unistd.h>
|
1997-08-11 03:07:40 +04:00
|
|
|
#endif
|
1997-04-26 17:21:57 +04:00
|
|
|
#include <fcntl.h>
|
|
|
|
#include <time.h>
|
1997-10-20 03:00:21 +04:00
|
|
|
#if HAVE_SYS_STAT_H
|
1997-04-26 17:21:57 +04:00
|
|
|
#include <sys/stat.h>
|
1997-10-20 03:00:21 +04:00
|
|
|
#endif
|
|
|
|
#if HAVE_SYS_TYPES_H
|
1997-04-26 17:21:57 +04:00
|
|
|
#include <sys/types.h>
|
1997-10-20 03:00:21 +04:00
|
|
|
#endif
|
1997-04-26 17:21:57 +04:00
|
|
|
|
Many files:
inode.c (ext2fs_open_inode_scan): Initialize the group variables
so that we don't need to call get_next_blockgroup() the first
time around. Saves a bit of time, and prevents us from
needing to assign -1 to current_group (which is an unsigned
value).
icount.c (insert_icount_el): Cast the estimated number of inodes
from a float to an ino_t.
alloc.c, alloc_tables.c, badlbocks.c, bb_compat.c, bb_inode.c,
bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c,
check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c,
dblist_dir.c, dir_iterate.c, dirblock.c, dupfs.c, expanddir.c,
ext2fs.h, fileio.c, freefs.c, get_pathname.c, getsize.c,
icount.c, initialize.c, inline.c, inode.c, irel_ma.c,
ismounted.c, link.c, lookup.c, mkdir.c, namei.c, native.c,
newdir.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c,
rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c,
tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c,
version.c: If EXT2_FLAT_INCLUDES is defined, then assume all
of the ext2-specific header files are in a flat directory.
block.c, bmove.c, dirblock.c, fileio.c: Explicitly cast
all assignments from void * to be compatible with C++.
closefs.c (ext2fs_flush): Add a call to io_channel_flush() to
make sure the contents of the disk are flushed to disk.
dblist.c (ext2fs_add_dir_block): Change new to be new_entry to
avoid C++ namespace clash.
bitmaps.c (ext2fs_copy_bitmap): Change new to be new_map to
avoid C++ namespace clash.
ext2fs.h, bb_inode.c, block.c, bmove.c, brel.h, brel_ma.c,
irel.h, irel_ma.c, dblist.c, dblist_dir.c, dir_iterate.c,
ext2fsP.h, expanddir.c, get_pathname.c, inode.c, link.c,
unlink.c: Change private to be priv_data (to avoid C++
namespace clash)
1998-01-19 17:47:53 +03:00
|
|
|
#include "ext2_fs.h"
|
1997-04-26 17:21:57 +04:00
|
|
|
#include "ext2fs.h"
|
2014-03-14 17:34:10 +04:00
|
|
|
#include "ext2fsP.h"
|
1997-04-26 17:21:57 +04:00
|
|
|
|
1999-10-23 04:58:54 +04:00
|
|
|
#ifndef EXT2_FT_DIR
|
|
|
|
#define EXT2_FT_DIR 2
|
|
|
|
#endif
|
|
|
|
|
Many files:
alloc.c, bb_inode.c, bitmaps.c, bitops.h, block.c, bmap.c, bmove.c,
brel.h, cmp_bitmaps.c, dblist.c, dblist_dir.c, dir_iterate.c,
expanddir.c, ext2fs.h, ext2fsP.h, fileio.c, finddev.c, get_pathname.c,
icount.c, inode.c, irel.h, irel_ma.c, ismounted.c, link.c, lookup.c,
mkdir.c, mkjournal.c, namei.c, newdir.c, read_bb_file.c, test_io.c,
tst_iscan.c, unix_io.c, unlink.c: Change use of ino_t to ext2_ino_t,
to protect applications that attempt to compile
-D_FILE_OFFSET_BITS=64, since this inexplicably changes ino_t(!?). So
we use ext2_ino_t to avoid an unexpected ABI change.
2001-01-11 07:54:39 +03:00
|
|
|
errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
|
1997-04-26 17:21:57 +04:00
|
|
|
const char *name)
|
|
|
|
{
|
2011-06-10 21:58:18 +04:00
|
|
|
ext2_extent_handle_t handle;
|
1997-04-26 17:21:57 +04:00
|
|
|
errcode_t retval;
|
ChangeLog, debug_cmds.ct, debugfs.8.in, debugfs.c, dump.c, ls.c:
debugfs.8.in: Documented new behaviour.
ls.c (ls_l_file): Fix Y2K bug -- was printing 22-May-100 for recent
files. Switched to 4-digit years.
dump.c, debug_cmds.ct (do_rdump): Add new debugfs command "rdump",
which recursively dumps a directory and its contents.
(fix_perms): New function. Break permission-fixing code out of
dump_file() so it can be called by rdump code as well.
(dump_file): Call fix_perms().
debugfs.c, debug_cmds.ct (do_lcd): Add new debugfs command "lcd",
which changes the cwd on the native filesystem.
debugfs.c (open_filesystem): Extra args for superblock, blocksize, and
catastrophic mode. Changed callers.
(do_open_filesys, main): Accept new -b, -s, -c options for
open_filesystem.
ChangeLog, mkdir.c:
mkdir.c (ext2fs_mkdir): Read the parent directory's inode earlier, so
that if there's an error reading it, we can more cleanly back out of
the operation.
version.h:
Update version file for WIP release.
2000-05-27 19:15:40 +04:00
|
|
|
struct ext2_inode parent_inode, inode;
|
Many files:
alloc.c, bb_inode.c, bitmaps.c, bitops.h, block.c, bmap.c, bmove.c,
brel.h, cmp_bitmaps.c, dblist.c, dblist_dir.c, dir_iterate.c,
expanddir.c, ext2fs.h, ext2fsP.h, fileio.c, finddev.c, get_pathname.c,
icount.c, inode.c, irel.h, irel_ma.c, ismounted.c, link.c, lookup.c,
mkdir.c, mkjournal.c, namei.c, newdir.c, read_bb_file.c, test_io.c,
tst_iscan.c, unix_io.c, unlink.c: Change use of ino_t to ext2_ino_t,
to protect applications that attempt to compile
-D_FILE_OFFSET_BITS=64, since this inexplicably changes ino_t(!?). So
we use ext2_ino_t to avoid an unexpected ABI change.
2001-01-11 07:54:39 +03:00
|
|
|
ext2_ino_t ino = inum;
|
|
|
|
ext2_ino_t scratch_ino;
|
2010-06-13 19:00:00 +04:00
|
|
|
blk64_t blk;
|
1997-04-26 17:21:57 +04:00
|
|
|
char *block = 0;
|
2014-03-03 09:31:27 +04:00
|
|
|
int inline_data = 0;
|
1997-04-26 17:21:57 +04:00
|
|
|
|
1997-04-26 17:34:30 +04:00
|
|
|
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
|
|
|
|
|
2014-03-03 09:31:27 +04:00
|
|
|
/*
|
|
|
|
* Create a new dir with inline data iff this feature is enabled
|
|
|
|
* and ino >= EXT2_FIRST_INO.
|
|
|
|
*/
|
|
|
|
if ((!ino || ino >= EXT2_FIRST_INO(fs->super)) &&
|
|
|
|
EXT2_HAS_INCOMPAT_FEATURE(fs->super,
|
|
|
|
EXT4_FEATURE_INCOMPAT_INLINE_DATA))
|
|
|
|
inline_data = 1;
|
|
|
|
|
1997-04-26 17:21:57 +04:00
|
|
|
/*
|
|
|
|
* Allocate an inode, if necessary
|
|
|
|
*/
|
|
|
|
if (!ino) {
|
1997-04-26 17:58:21 +04:00
|
|
|
retval = ext2fs_new_inode(fs, parent, LINUX_S_IFDIR | 0755,
|
|
|
|
0, &ino);
|
1997-04-26 17:21:57 +04:00
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Allocate a data block for the directory
|
|
|
|
*/
|
2014-03-03 09:31:27 +04:00
|
|
|
if (!inline_data) {
|
|
|
|
retval = ext2fs_new_block2(fs, 0, 0, &blk);
|
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
|
|
|
}
|
1997-04-26 17:21:57 +04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Create a scratch template for the directory
|
|
|
|
*/
|
2014-03-03 09:31:27 +04:00
|
|
|
memset(&inode, 0, sizeof(struct ext2_inode));
|
|
|
|
if (inline_data)
|
|
|
|
retval = ext2fs_new_dir_inline_data(fs, ino, parent,
|
|
|
|
inode.i_block);
|
|
|
|
else
|
|
|
|
retval = ext2fs_new_dir_block(fs, ino, parent, &block);
|
1997-04-26 17:21:57 +04:00
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
|
|
|
|
ChangeLog, debug_cmds.ct, debugfs.8.in, debugfs.c, dump.c, ls.c:
debugfs.8.in: Documented new behaviour.
ls.c (ls_l_file): Fix Y2K bug -- was printing 22-May-100 for recent
files. Switched to 4-digit years.
dump.c, debug_cmds.ct (do_rdump): Add new debugfs command "rdump",
which recursively dumps a directory and its contents.
(fix_perms): New function. Break permission-fixing code out of
dump_file() so it can be called by rdump code as well.
(dump_file): Call fix_perms().
debugfs.c, debug_cmds.ct (do_lcd): Add new debugfs command "lcd",
which changes the cwd on the native filesystem.
debugfs.c (open_filesystem): Extra args for superblock, blocksize, and
catastrophic mode. Changed callers.
(do_open_filesys, main): Accept new -b, -s, -c options for
open_filesystem.
ChangeLog, mkdir.c:
mkdir.c (ext2fs_mkdir): Read the parent directory's inode earlier, so
that if there's an error reading it, we can more cleanly back out of
the operation.
version.h:
Update version file for WIP release.
2000-05-27 19:15:40 +04:00
|
|
|
/*
|
|
|
|
* Get the parent's inode, if necessary
|
|
|
|
*/
|
|
|
|
if (parent != ino) {
|
|
|
|
retval = ext2fs_read_inode(fs, parent, &parent_inode);
|
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
|
|
|
} else
|
|
|
|
memset(&parent_inode, 0, sizeof(parent_inode));
|
|
|
|
|
1997-04-26 17:21:57 +04:00
|
|
|
/*
|
|
|
|
* Create the inode structure....
|
|
|
|
*/
|
2001-12-24 17:40:00 +03:00
|
|
|
inode.i_mode = LINUX_S_IFDIR | (0777 & ~fs->umask);
|
1997-04-26 17:21:57 +04:00
|
|
|
inode.i_uid = inode.i_gid = 0;
|
2014-03-03 09:31:27 +04:00
|
|
|
if (inline_data) {
|
|
|
|
inode.i_flags |= EXT4_INLINE_DATA_FL;
|
|
|
|
inode.i_size = EXT4_MIN_INLINE_DATA_SIZE;
|
|
|
|
} else {
|
|
|
|
if (fs->super->s_feature_incompat &
|
|
|
|
EXT3_FEATURE_INCOMPAT_EXTENTS)
|
|
|
|
inode.i_flags |= EXT4_EXTENTS_FL;
|
|
|
|
else
|
|
|
|
inode.i_block[0] = blk;
|
|
|
|
inode.i_size = fs->blocksize;
|
|
|
|
ext2fs_iblk_set(fs, &inode, 1);
|
|
|
|
}
|
1997-04-26 17:21:57 +04:00
|
|
|
inode.i_links_count = 2;
|
|
|
|
|
|
|
|
/*
|
2012-07-31 02:46:04 +04:00
|
|
|
* Write out the inode and inode data block. The inode generation
|
|
|
|
* number is assigned by write_new_inode, which means that the call
|
|
|
|
* to write_dir_block must come after that.
|
1997-04-26 17:21:57 +04:00
|
|
|
*/
|
2012-07-31 02:46:04 +04:00
|
|
|
retval = ext2fs_write_new_inode(fs, ino, &inode);
|
1997-04-26 17:21:57 +04:00
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
2014-03-03 09:31:27 +04:00
|
|
|
if (inline_data) {
|
|
|
|
/* init "system.data" for new dir */
|
|
|
|
retval = ext2fs_inline_data_init(fs, ino);
|
|
|
|
} else {
|
|
|
|
retval = ext2fs_write_dir_block4(fs, blk, block, 0, ino);
|
2011-06-10 21:58:18 +04:00
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
2014-03-03 09:31:27 +04:00
|
|
|
|
|
|
|
if (fs->super->s_feature_incompat &
|
|
|
|
EXT3_FEATURE_INCOMPAT_EXTENTS) {
|
|
|
|
retval = ext2fs_extent_open2(fs, ino, &inode, &handle);
|
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
|
|
|
retval = ext2fs_extent_set_bmap(handle, 0, blk, 0);
|
|
|
|
ext2fs_extent_free(handle);
|
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
|
|
|
}
|
2011-06-10 21:58:18 +04:00
|
|
|
}
|
|
|
|
|
1997-04-26 17:21:57 +04:00
|
|
|
/*
|
|
|
|
* Link the directory into the filesystem hierarchy
|
|
|
|
*/
|
|
|
|
if (name) {
|
|
|
|
retval = ext2fs_lookup(fs, parent, name, strlen(name), 0,
|
|
|
|
&scratch_ino);
|
|
|
|
if (!retval) {
|
1997-10-31 09:07:47 +03:00
|
|
|
retval = EXT2_ET_DIR_EXISTS;
|
1997-04-26 17:21:57 +04:00
|
|
|
name = 0;
|
|
|
|
goto cleanup;
|
|
|
|
}
|
1997-10-31 09:07:47 +03:00
|
|
|
if (retval != EXT2_ET_FILE_NOT_FOUND)
|
1997-04-26 17:21:57 +04:00
|
|
|
goto cleanup;
|
1999-10-23 04:58:54 +04:00
|
|
|
retval = ext2fs_link(fs, parent, name, ino, EXT2_FT_DIR);
|
1997-04-26 17:21:57 +04:00
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
|
|
|
}
|
|
|
|
|
1999-11-19 21:49:27 +03:00
|
|
|
/*
|
|
|
|
* Update parent inode's counts
|
|
|
|
*/
|
|
|
|
if (parent != ino) {
|
2014-03-03 09:31:27 +04:00
|
|
|
/* reload parent inode due to inline data */
|
|
|
|
retval = ext2fs_read_inode(fs, parent, &parent_inode);
|
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
ChangeLog, debug_cmds.ct, debugfs.8.in, debugfs.c, dump.c, ls.c:
debugfs.8.in: Documented new behaviour.
ls.c (ls_l_file): Fix Y2K bug -- was printing 22-May-100 for recent
files. Switched to 4-digit years.
dump.c, debug_cmds.ct (do_rdump): Add new debugfs command "rdump",
which recursively dumps a directory and its contents.
(fix_perms): New function. Break permission-fixing code out of
dump_file() so it can be called by rdump code as well.
(dump_file): Call fix_perms().
debugfs.c, debug_cmds.ct (do_lcd): Add new debugfs command "lcd",
which changes the cwd on the native filesystem.
debugfs.c (open_filesystem): Extra args for superblock, blocksize, and
catastrophic mode. Changed callers.
(do_open_filesys, main): Accept new -b, -s, -c options for
open_filesystem.
ChangeLog, mkdir.c:
mkdir.c (ext2fs_mkdir): Read the parent directory's inode earlier, so
that if there's an error reading it, we can more cleanly back out of
the operation.
version.h:
Update version file for WIP release.
2000-05-27 19:15:40 +04:00
|
|
|
parent_inode.i_links_count++;
|
|
|
|
retval = ext2fs_write_inode(fs, parent, &parent_inode);
|
1999-11-19 21:49:27 +03:00
|
|
|
if (retval)
|
|
|
|
goto cleanup;
|
|
|
|
}
|
2008-08-28 07:07:54 +04:00
|
|
|
|
1997-04-26 17:21:57 +04:00
|
|
|
/*
|
|
|
|
* Update accounting....
|
|
|
|
*/
|
2014-03-03 09:31:27 +04:00
|
|
|
if (!inline_data)
|
|
|
|
ext2fs_block_alloc_stats2(fs, blk, +1);
|
2002-02-03 09:28:52 +03:00
|
|
|
ext2fs_inode_alloc_stats2(fs, ino, +1, 1);
|
dir_iterate.c (ext2fs_dir_iterate2, ext2fs_process_dir_block):
Add support for a new flag, DIRENT_FLAG_INCLUDE_REMOVED,
which will return deleted directory entries.
ext2fs_dir_iterate2 takes a new callback function which
is identical with the one used by
ext2fs_dblist_dir_iterate(). If the directory entry is
deleted, the callback function will be called with the
entry paraemter set to DIRENT_DELETED_FILE.
Makefile.in, alloc_stats.c (ext2fs_inode_alloc_stats,
ext2fs_block_alloc_stats): New functions which update
block/inode allocation statistics in the bitmaps, block
group descriptors, and superblock.
mkjournal.c (mkjournal_proc), mkdir.c (ext2fs_mkdir),
expanddir.c (expand_dir_proc), bb_inode.c
(clear_bad_block_proc, set_bad_block_proc,
ext2fs_update_bb_inode), alloc.c (ext2fs_alloc_block):
Update to use new block/inode allocation statistics.
2002-01-03 11:29:19 +03:00
|
|
|
|
1997-04-26 17:21:57 +04:00
|
|
|
cleanup:
|
|
|
|
if (block)
|
2003-08-01 17:41:07 +04:00
|
|
|
ext2fs_free_mem(&block);
|
1997-04-26 17:21:57 +04:00
|
|
|
return retval;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|