Move ntfs_set_volume_flags() from attrib[ch] to volume.[ch]
2002/07/14 12:36:04-00:00 !szaka
Increase NTFS_BUF_SIZE to 8192 (better average performance)
2002/07/12 12:38:54-00:00 !szaka
Rewrote $LogFile reset using new inode API and moved it from ntfsfix to
libntfs as ntfs_reset_logfile(). ntfsresize also resets log file.
2002/07/12 07:10:44-00:00 !szaka
NTFS_V* version macros and ntfs_is_version_supported() added.
Modified ntfsfix and ntfsresize to use them.
2002/07/11 16:20:33-00:00 !flatcap
whitespace and include guards
2002/07/11 13:18:11-00:00 !flatcap
start to break up the dependency loops in the header files
2002/07/02 23:47:10-00:00 !antona
Global replacement of __[su]{8,16,32,64} with [su]{8,16,32,64} and layout.h define it.
2002/06/06 20:47:32-00:00 !antona
The beginning of the directory operations! Introduce dir.[hc] and ntfs_lookup_inode_by_name().
2002/06/02 23:02:20-00:00 !antona
More fixes and updates.
2002/06/01 00:41:45-00:00 !antona
huge update!
2002/04/29 01:53:55-00:00 !antona
Loads of stuff. Improvements, start on attr pread and attr mst_pread. Write to follow. ntfslabel cleanup and extensions. libntfs cleanups, fixes, etc.
2002/04/27 19:49:09-00:00 !antona
Update library, new APIs ntfs_attr_find_vcn(), misc fixes and cleanups, make all the utilities compile, fix bugs I noticed in ntfslabel and it now works properly.
2002/04/23 23:27:33-00:00 !antona
Fixup the force option in mkntfs.c. Change the ntfs_check_if_mounted so it works on system not implementing {set,get,end}mntent, too. Also make it more powerful in telling us not only if something is mounted but also if it is the fs root and if it is read-only.
2002/04/22 10:34:31-00:00 !antona
Attribute list support (merging done, part 2, some stuff still incomplete). mkntfs ntfs volume creation. See the changelog...
2002/04/20 23:09:42-00:00 !antona
Port attribute lookup functions with attribute list support from ntfs tng driver. Port/reimplement extent mft record handling code as well. Rename out all dollar signs from type names and constants. Adapt all callers to new API. Note mkntfs is currently broken due to some needed work.
2002/04/14 13:56:45-00:00 !antona
cleanup header files.
2001/12/06 01:14:52-00:00 !antona
Added mount flags to ntfs_mount and adapted utilities to new mount syntax.
2001/06/01 02:07:24-00:00 !antona
It has been a long time since last commit. At moment have done a lot of work
on mkntfs but also at the moment ntfsfix and ntfsdump_logfile and libntfs are
broken. Basically only mkntfs works and that is not complete either.
2001/04/11 11:49:16-00:00 !antona
Header file reorganisation so that it compiles.
2001/04/10 23:37:19-00:00 !antona
Ok, ntfsd was a mistake for userspace. It increases complexity no end while
not giving us much functionality. Lets get it working and then worry about the
kernel. - As it was the idea originally anyway, so this is just a return on the
right track. (-8
We keep the timer and signal handler but the only thing we do is to set a bool
flag (ntfs_need_sync) and we will just check this in appropriate places and
if it is true we call ntfs_sync_volumes() which sets it back to false. This
means no more locking at all of any description and no need to worry about the
signal handler interrupting things in bad ways and/or at bad times in the main
code.
2001/04/10 22:20:19-00:00 !antona
Ok, ntfsd was a mistake for userspace. It increases complexity no end while
not giving us much functionality. Lets get it working and then worry about the
kernel. - As it was the idea originally anyway, so this is just a return on the
right track. (-8
We keep the timer and signal handler but the only thing we do is to set a bool
flag (ntfs_need_sync) and we will just check this in appropriate places and
if it is true we call ntfs_sync_volumes() which sets it back to false. This
means no more locking at all of any description and no need to worry about the
signal handler interrupting things in bad ways and/or at bad times in the main
code.
2001/04/09 00:05:37-00:00 !antona
More or less finished file handling. (Probably some useful functions are
still missing but they will be implemented as need arises.)
One thing that is stupid at the moment is we don't limit the amount of
cached mft_records so if you were to load loads the machine would eventually
run out of memory... Can't happen with files as they are limited to 1000,
unless you are short of memory. (Hard limit at the moment, set in ntfs_mount().
Maybe ntfsd should be monitoring memory usage and be throwing out unused cache
entries and closed_files? That would mean to have locking everywhere, though.)
Still missing: - Convert old code to use new stuff. - Add non-resident
attributes somewhere. Either into the mft_entry structure or into the
ntfs_file structure, but which? At the moment I tend to mft_entry so they can
be synced together with the entries by ntfsd.
2001/04/08 03:02:55-00:00 !antona
Added cvs Id header.
2001/04/08 01:58:29-00:00 !antona
User space conversion of locking complete. I settled for using simple spinlocks
and atomic variables and instead of deadlocking/livelocking when using
spin_lock(), use spin_trylock() in a while letting go of the cpu between each
call and making a maximum of 100 iterations (or we return EDEADLK error code).
This is not the most efficient way, especially as can't have multiple readers
but it is the simplest way to go about things.
Should now have (almost) all required helper functions for dealing with mft
entries implemented.
Now need the file handling and then convert the whole project to use the new
code and then can finally get back to work on attribute searching...
2001/04/07 17:30:10-00:00 !antona
ntfsd should be finished now
2001/04/03 22:41:30-00:00 !antona
We now have files and keep track of them on a per volume basis and same
for inodes (mft_records). At least conceptually anyway.
2001/04/02 02:04:37-00:00 !antona
Everything compiles again! Yey! (Don't know about working though, haven't tried
it... So be careful...)
The definitely final find_{first_}attr() functions are in place. Currently
still no support for attribute lists.
The two new _RE files contain the C-fied and more or less (more less than more
actually) cleaned up functions from the ntfs driver. Once they are cleaned
up (find_attr() is already completed but I left it in the _RE files for future
reference/educational value) and modified to suit my ideas of how they should
work, which are not quite the same as the driver way, they will make it into
attrib.[ch].
If anyone gives the new code a try, I would be interested in whether it worked
or not... (-;
2001/03/06 02:10:55-00:00 !antona
Allow variable length upcase table.
Progressing on find_next_attr().
2001/01/30 12:55:21-00:00 !antona
Fixed the compilation issues.
2001/01/25 14:00:43-00:00 !antona
Added volume.c code and fixed some typos and inconsistencies.
2001/01/24 02:13:24-00:00 !antona
Add a bunch of headers (attrib.h is work in progress).
(Logical change 1.5)
edge.strict_endians
!szaka
parent
e80befbfb5
commit
1935ac9421
155
include/volume.h
155
include/volume.h
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@ -0,0 +1,155 @@
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/*
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* $Id$
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*
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* volume.h - Exports for NTFS volume handling. Part of the Linux-NTFS project.
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*
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* Copyright (c) 2000-2002 Anton Altaparmakov.
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*
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* This program/include file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program/include file is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (in the main directory of the Linux-NTFS
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* distribution in the file COPYING); if not, write to the Free Software
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* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _NTFS_VOLUME_H
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#define _NTFS_VOLUME_H
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#include "config.h"
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#include <sys/mount.h>
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#ifdef HAVE_MNTENT_H
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# include <mntent.h>
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#endif
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/* Forward declaration */
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typedef struct _ntfs_volume ntfs_volume;
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#include "types.h"
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#include "support.h"
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#include "inode.h"
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/*
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* Flags returned by the ntfs_check_if_mounted() function.
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*/
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typedef enum {
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NTFS_MF_MOUNTED = 1, /* Device is mounted. */
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NTFS_MF_ISROOT = 2, /* Device is mounted as system root. */
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NTFS_MF_READONLY = 4, /* Device is mounted read-only. */
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} ntfs_mount_flags;
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extern int ntfs_check_if_mounted(const char *file, unsigned long *mnt_flags);
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/*
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* Defined bits for the state field in the ntfs_volume structure.
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*/
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typedef enum {
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NV_ReadOnly, /* 1: Volume is read-only. */
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NV_CaseSensitive, /* 1: Volume is mounted case-sensitive. */
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} ntfs_volume_state_bits;
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#define test_nvol_flag(nv, flag) test_bit(NV_##flag, (nv)->state)
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#define set_nvol_flag(nv, flag) set_bit(NV_##flag, (nv)->state)
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#define clear_nvol_flag(nv, flag) clear_bit(NV_##flag, (nv)->state)
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#define NVolReadOnly(nv) test_nvol_flag(nv, ReadOnly)
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#define NVolSetReadOnly(nv) set_nvol_flag(nv, ReadOnly)
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#define NVolClearReadOnly(nv) clear_nvol_flag(nv, ReadOnly)
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#define NVolCaseSensitive(nv) test_nvol_flag(nv, CaseSensitive)
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#define NVolSetCaseSensitive(nv) set_nvol_flag(nv, CaseSensitive)
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#define NVolClearCaseSensitive(nv) clear_nvol_flag(nv, CaseSensitive)
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/*
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* NTFS version 1.1 and 1.2 are used by Windows NT4.
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* NTFS version 2.x is used by Windows 2000 Beta
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* NTFS version 3.0 is used by Windows 2000.
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* NTFS version 3.1 is used by Windows XP and .NET.
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*/
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#define NTFS_V1_1(major, minor) ((major) == 1 && (minor) == 1)
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#define NTFS_V1_2(major, minor) ((major) == 1 && (minor) == 2)
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#define NTFS_V2_X(major, minor) ((major) == 2)
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#define NTFS_V3_0(major, minor) ((major) == 3 && (minor) == 0)
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#define NTFS_V3_1(major, minor) ((major) == 3 && (minor) == 1)
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#define NTFS_BUF_SIZE 8192
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/*
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* ntfs_volume - structure describing an open volume in memory
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*/
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struct _ntfs_volume {
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int fd; /* File descriptor associated with volume. */
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char *dev_name; /* Name of the device/file the volume is in. */
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char *vol_name; /* Name of the volume. */
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unsigned long state; /* NTFS specific flags describing this volume.
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See ntfs_volume_state_bits above. */
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u8 major_ver; /* Ntfs major version of volume. */
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u8 minor_ver; /* Ntfs minor version of volume. */
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u16 flags; /* Bit array of VOLUME_* flags. */
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u16 sector_size; /* Byte size of a sector. */
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u8 sector_size_bits; /* Log(2) of the byte size of a sector. */
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u32 cluster_size; /* Byte size of a cluster. */
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u32 mft_record_size; /* Byte size of a mft record. */
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u8 cluster_size_bits; /* Log(2) of the byte size of a cluster. */
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u8 mft_record_size_bits;/* Log(2) of the byte size of a mft record. */
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s64 nr_clusters; /* Volume size in clusters, hence also the
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number of bits in lcn_bitmap. */
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ntfs_inode *lcnbmp_ni; /* ntfs_inode structure for FILE_Bitmap. */
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ntfs_attr *lcnbmp_na; /* ntfs_attr structure for the data attribute
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of FILE_Bitmap. Each bit represents a
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cluster on the volume, bit 0 representing
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lcn 0 and so on. A set bit means that the
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cluster and vice versa. */
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s64 nr_mft_records; /* Number of records in the mft, equals the
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number of bits in mft_bitmap. */
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s64 mft_lcn; /* Logical cluster number of the data attribute
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for FILE_MFT. */
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ntfs_inode *mft_ni; /* ntfs_inode structure for FILE_MFT. */
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ntfs_attr *mft_na; /* ntfs_attr structure for the data attribute
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of FILE_MFT. */
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ntfs_attr *mftbmp_na; /* ntfs_attr structure for the bitmap attribute
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of FILE_MFT. Each bit represents an mft
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record in the $DATA attribute, bit 0
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representing mft record 0 and so on. A set
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bit means that the mft record is in use and
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vice versa. */
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int mftmirr_size; /* Size of the FILE_MFTMirr in mft records. */
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s64 mftmirr_lcn; /* Logical cluster number of the data attribute
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for FILE_MFTMirr. */
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ntfs_inode *mftmirr_ni; /* ntfs_inode structure for FILE_MFTMirr. */
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ntfs_attr *mftmirr_na; /* ntfs_attr structure for the data attribute
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of FILE_MFTMirr. */
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uchar_t *upcase; /* Upper case equivalents of all 65536 2-byte
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Unicode characters. Obtained from
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FILE_UpCase. */
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u32 upcase_len; /* Length in Unicode characters of the upcase
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table. */
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};
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extern ntfs_volume *ntfs_startup_volume(const char *name, unsigned long rwflag);
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extern ntfs_volume *ntfs_mount(const char *name, unsigned long rwflag);
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extern int ntfs_umount(ntfs_volume *vol, const BOOL force);
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extern int ntfs_is_version_supported(ntfs_volume *vol);
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extern int ntfs_reset_logfile(ntfs_volume *vol);
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extern int ntfs_set_volume_flags(ntfs_volume *v, const u16 flags);
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#endif /* defined _NTFS_VOLUME_H */
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Loading…
Reference in New Issue