1997-04-26 17:21:57 +04:00
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/*
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* mkdir.c --- make a directory in the filesystem
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*
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1997-04-29 20:17:09 +04:00
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* Copyright (C) 1994, 1995 Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Public
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* License.
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* %End-Header%
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1997-04-26 17:21:57 +04:00
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*/
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#include <stdio.h>
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#include <string.h>
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1997-08-11 03:07:40 +04:00
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#if HAVE_UNISTD_H
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1997-04-26 17:21:57 +04:00
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#include <unistd.h>
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1997-08-11 03:07:40 +04:00
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#endif
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1997-04-26 17:21:57 +04:00
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#include <fcntl.h>
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#include <time.h>
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1997-10-20 03:00:21 +04:00
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#if HAVE_SYS_STAT_H
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1997-04-26 17:21:57 +04:00
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#include <sys/stat.h>
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1997-10-20 03:00:21 +04:00
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#endif
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#if HAVE_SYS_TYPES_H
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1997-04-26 17:21:57 +04:00
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#include <sys/types.h>
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1997-10-20 03:00:21 +04:00
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#endif
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1997-04-26 17:21:57 +04:00
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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
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#include "ext2_fs.h"
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1997-04-26 17:21:57 +04:00
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#include "ext2fs.h"
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1999-10-23 04:58:54 +04:00
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#ifndef EXT2_FT_DIR
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#define EXT2_FT_DIR 2
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#endif
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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
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errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
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1997-04-26 17:21:57 +04:00
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const char *name)
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{
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errcode_t retval;
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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
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struct ext2_inode parent_inode, inode;
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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
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ext2_ino_t ino = inum;
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ext2_ino_t scratch_ino;
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1997-04-26 17:21:57 +04:00
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blk_t blk;
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char *block = 0;
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1997-04-26 17:34:30 +04:00
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EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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1997-04-26 17:21:57 +04:00
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/*
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* Allocate an inode, if necessary
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*/
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if (!ino) {
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1997-04-26 17:58:21 +04:00
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retval = ext2fs_new_inode(fs, parent, LINUX_S_IFDIR | 0755,
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0, &ino);
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1997-04-26 17:21:57 +04:00
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if (retval)
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goto cleanup;
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}
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/*
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* Allocate a data block for the directory
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*/
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retval = ext2fs_new_block(fs, 0, 0, &blk);
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if (retval)
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goto cleanup;
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/*
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* Create a scratch template for the directory
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*/
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retval = ext2fs_new_dir_block(fs, ino, parent, &block);
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if (retval)
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goto cleanup;
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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
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/*
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* Get the parent's inode, if necessary
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*/
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if (parent != ino) {
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retval = ext2fs_read_inode(fs, parent, &parent_inode);
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if (retval)
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goto cleanup;
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} else
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memset(&parent_inode, 0, sizeof(parent_inode));
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1997-04-26 17:21:57 +04:00
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/*
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* Create the inode structure....
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*/
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memset(&inode, 0, sizeof(struct ext2_inode));
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2001-12-24 17:40:00 +03:00
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inode.i_mode = LINUX_S_IFDIR | (0777 & ~fs->umask);
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1997-04-26 17:21:57 +04:00
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inode.i_uid = inode.i_gid = 0;
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inode.i_blocks = fs->blocksize / 512;
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inode.i_block[0] = blk;
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inode.i_links_count = 2;
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2005-09-25 04:14:51 +04:00
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inode.i_ctime = inode.i_atime = inode.i_mtime = fs->now ? fs->now : time(NULL);
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1997-04-26 17:21:57 +04:00
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inode.i_size = fs->blocksize;
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/*
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* Write out the inode and inode data block
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*/
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1997-04-26 17:58:21 +04:00
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retval = ext2fs_write_dir_block(fs, blk, block);
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1997-04-26 17:21:57 +04:00
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if (retval)
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goto cleanup;
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2005-03-21 04:05:22 +03:00
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retval = ext2fs_write_new_inode(fs, ino, &inode);
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1997-04-26 17:21:57 +04:00
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if (retval)
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goto cleanup;
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/*
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* Link the directory into the filesystem hierarchy
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*/
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if (name) {
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retval = ext2fs_lookup(fs, parent, name, strlen(name), 0,
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&scratch_ino);
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if (!retval) {
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1997-10-31 09:07:47 +03:00
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retval = EXT2_ET_DIR_EXISTS;
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1997-04-26 17:21:57 +04:00
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name = 0;
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goto cleanup;
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}
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1997-10-31 09:07:47 +03:00
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if (retval != EXT2_ET_FILE_NOT_FOUND)
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1997-04-26 17:21:57 +04:00
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goto cleanup;
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1999-10-23 04:58:54 +04:00
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retval = ext2fs_link(fs, parent, name, ino, EXT2_FT_DIR);
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1997-04-26 17:21:57 +04:00
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if (retval)
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goto cleanup;
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}
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1999-11-19 21:49:27 +03:00
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/*
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* Update parent inode's counts
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*/
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if (parent != ino) {
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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
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parent_inode.i_links_count++;
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retval = ext2fs_write_inode(fs, parent, &parent_inode);
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1999-11-19 21:49:27 +03:00
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if (retval)
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goto cleanup;
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}
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1997-04-26 17:21:57 +04:00
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/*
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* Update accounting....
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*/
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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
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ext2fs_block_alloc_stats(fs, blk, +1);
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2002-02-03 09:28:52 +03:00
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ext2fs_inode_alloc_stats2(fs, ino, +1, 1);
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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
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1997-04-26 17:21:57 +04:00
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cleanup:
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if (block)
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2003-08-01 17:41:07 +04:00
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ext2fs_free_mem(&block);
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1997-04-26 17:21:57 +04:00
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return retval;
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}
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