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bb3cf335
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体验新版 GitCode,发现更多精彩内容 >>
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bb3cf335
编写于
4月 06, 2005
作者:
A
Anton Altaparmakov
浏览文件
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电子邮件补丁
差异文件
NTFS: Update attribute definition handling.
Signed-off-by:
N
Anton Altaparmakov
<
aia21@cantab.net
>
上级
b0d2374d
变更
4
隐藏空白更改
内联
并排
Showing
4 changed file
with
40 addition
and
27 deletion
+40
-27
fs/ntfs/ChangeLog
fs/ntfs/ChangeLog
+1
-0
fs/ntfs/attrib.c
fs/ntfs/attrib.c
+7
-14
fs/ntfs/layout.h
fs/ntfs/layout.h
+30
-12
fs/ntfs/ntfs.h
fs/ntfs/ntfs.h
+2
-1
未找到文件。
fs/ntfs/ChangeLog
浏览文件 @
bb3cf335
...
...
@@ -110,6 +110,7 @@ ToDo/Notes:
only emit a warning when the checksum is incorrect rather than
refusing the mount. Thanks to Bernd Casimir for pointing this
problem out.
- Update attribute definition handling.
2.1.22 - Many bug and race fixes and error handling improvements.
...
...
fs/ntfs/attrib.c
浏览文件 @
bb3cf335
...
...
@@ -1138,28 +1138,21 @@ int ntfs_attr_size_bounds_check(const ntfs_volume *vol, const ATTR_TYPE type,
* Check whether the attribute of @type on the ntfs volume @vol is allowed to
* be non-resident. This information is obtained from $AttrDef system file.
*
* Return 0 if the attribute is allowed to be non-resident, -EPERM if not,
or
* Return 0 if the attribute is allowed to be non-resident, -EPERM if not,
and
* -ENOENT if the attribute is not listed in $AttrDef.
*/
int
ntfs_attr_can_be_non_resident
(
const
ntfs_volume
*
vol
,
const
ATTR_TYPE
type
)
{
ATTR_DEF
*
ad
;
/*
* $DATA and $EA are always allowed to be non-resident even if $AttrDef
* does not specify this in the flags of the $DATA attribute definition
* record.
*/
if
(
type
==
AT_DATA
||
type
==
AT_EA
)
return
0
;
/* Find the attribute definition record in $AttrDef. */
ad
=
ntfs_attr_find_in_attrdef
(
vol
,
type
);
if
(
unlikely
(
!
ad
))
return
-
ENOENT
;
/* Check the flags and return the result. */
if
(
ad
->
flags
&
CAN_BE_NON
_RESIDENT
)
return
0
;
return
-
EPERM
;
if
(
ad
->
flags
&
ATTR_DEF
_RESIDENT
)
return
-
EPERM
;
return
0
;
}
/**
...
...
@@ -1182,9 +1175,9 @@ int ntfs_attr_can_be_non_resident(const ntfs_volume *vol, const ATTR_TYPE type)
*/
int
ntfs_attr_can_be_resident
(
const
ntfs_volume
*
vol
,
const
ATTR_TYPE
type
)
{
if
(
type
!=
AT_INDEX_ALLOCATION
&&
type
!
=
AT_EA
)
return
0
;
return
-
EPERM
;
if
(
type
==
AT_INDEX_ALLOCATION
||
type
=
=
AT_EA
)
return
-
EPERM
;
return
0
;
}
/**
...
...
fs/ntfs/layout.h
浏览文件 @
bb3cf335
...
...
@@ -547,26 +547,44 @@ enum {
COLLATION_NTOFS_ULONG
=
const_cpu_to_le32
(
0x10
),
COLLATION_NTOFS_SID
=
const_cpu_to_le32
(
0x11
),
COLLATION_NTOFS_SECURITY_HASH
=
const_cpu_to_le32
(
0x12
),
COLLATION_NTOFS_ULONGS
=
const_cpu_to_le32
(
0x13
)
COLLATION_NTOFS_ULONGS
=
const_cpu_to_le32
(
0x13
)
,
};
typedef
le32
COLLATION_RULE
;
/*
* The flags (32-bit) describing attribute properties in the attribute
* definition structure. FIXME: This information is from Regis's information
* and, according to him, it is not certain and probably incomplete.
* The INDEXABLE flag is fairly certainly correct as only the file name
* attribute has this flag set and this is the only attribute indexed in NT4.
* definition structure. FIXME: This information is based on Regis's
* information and, according to him, it is not certain and probably
* incomplete. The INDEXABLE flag is fairly certainly correct as only the file
* name attribute has this flag set and this is the only attribute indexed in
* NT4.
*/
enum
{
INDEXABLE
=
const_cpu_to_le32
(
0x02
),
/* Attribute can be
indexed. */
NEED_TO_REGENERATE
=
const_cpu_to_le32
(
0x40
),
/* Need to regenerate
during regeneration
phase. */
CAN_BE_NON_RESIDENT
=
const_cpu_to_le32
(
0x80
),
/* Attribute can be
non-resident. */
ATTR_DEF_INDEXABLE
=
const_cpu_to_le32
(
0x02
),
/* Attribute can be
indexed. */
ATTR_DEF_MULTIPLE
=
const_cpu_to_le32
(
0x04
),
/* Attribute type
can be present multiple times in the
mft records of an inode. */
ATTR_DEF_NOT_ZERO
=
const_cpu_to_le32
(
0x08
),
/* Attribute value
must contain at least one non-zero
byte. */
ATTR_DEF_INDEXED_UNIQUE
=
const_cpu_to_le32
(
0x10
),
/* Attribute must be
indexed and the attribute value must be
unique for the attribute type in all of
the mft records of an inode. */
ATTR_DEF_NAMED_UNIQUE
=
const_cpu_to_le32
(
0x20
),
/* Attribute must be
named and the name must be unique for
the attribute type in all of the mft
records of an inode. */
ATTR_DEF_RESIDENT
=
const_cpu_to_le32
(
0x40
),
/* Attribute must be
resident. */
ATTR_DEF_ALWAYS_LOG
=
const_cpu_to_le32
(
0x80
),
/* Always log
modifications to this attribute,
regardless of whether it is resident or
non-resident. Without this, only log
modifications if the attribute is
resident. */
};
typedef
le32
ATTR_DEF_FLAGS
;
...
...
fs/ntfs/ntfs.h
浏览文件 @
bb3cf335
...
...
@@ -2,7 +2,7 @@
* ntfs.h - Defines for NTFS Linux kernel driver. Part of the Linux-NTFS
* project.
*
* Copyright (c) 2001-200
4
Anton Altaparmakov
* Copyright (c) 2001-200
5
Anton Altaparmakov
* Copyright (C) 2002 Richard Russon
*
* This program/include file is free software; you can redistribute it and/or
...
...
@@ -41,6 +41,7 @@ typedef enum {
NTFS_BLOCK_SIZE_BITS
=
9
,
NTFS_SB_MAGIC
=
0x5346544e
,
/* 'NTFS' */
NTFS_MAX_NAME_LEN
=
255
,
NTFS_MAX_ATTR_NAME_LEN
=
255
,
}
NTFS_CONSTANTS
;
/* Global variables. */
...
...
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