xattr.c File Reference

#include <linux/capability.h>
#include <linux/fs.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/uio.h>
#include <linux/sched.h>
#include <linux/splice.h>
#include <linux/mount.h>
#include <linux/writeback.h>
#include <linux/falloc.h>
#include <linux/sort.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/security.h>
#include <cluster/masklog.h>
#include "ocfs2.h"
#include "alloc.h"
#include "blockcheck.h"
#include "dlmglue.h"
#include "file.h"
#include "symlink.h"
#include "sysfile.h"
#include "inode.h"
#include "journal.h"
#include "ocfs2_fs.h"
#include "suballoc.h"
#include "uptodate.h"
#include "buffer_head_io.h"
#include "super.h"
#include "xattr.h"
#include "refcounttree.h"
#include "acl.h"
#include "ocfs2_trace.h"

Go to the source code of this file.

Data Structures
struct	ocfs2_xattr_def_value_root
struct	ocfs2_xattr_bucket
struct	ocfs2_xattr_set_ctxt
struct	ocfs2_xattr_info
struct	ocfs2_xattr_search
struct	ocfs2_xa_loc_operations
struct	ocfs2_xa_loc
struct	ocfs2_rm_xattr_bucket_para
struct	ocfs2_xattr_tree_list
struct	ocfs2_xattr_tree_value_refcount_para
struct	ocfs2_xattr_reflink
struct	ocfs2_reflink_xattr_tree_args
struct	ocfs2_value_tree_metas

Macros
#define	OCFS2_XATTR_ROOT_SIZE   (sizeof(struct ocfs2_xattr_def_value_root))
#define	OCFS2_XATTR_INLINE_SIZE   80
#define	OCFS2_XATTR_HEADER_GAP   4
#define	OCFS2_XATTR_FREE_IN_IBODY
#define	OCFS2_XATTR_FREE_IN_BLOCK(ptr)
#define	bucket_blkno(_b)   ((_b)->bu_bhs[0]->b_blocknr)
#define	bucket_block(_b, _n)   ((_b)->bu_bhs[(_n)]->b_data)
#define	bucket_xh(_b)   ((struct ocfs2_xattr_header *)bucket_block((_b), 0))

Typedefs
typedef int(	xattr_tree_rec_func )(struct inode *inode, struct buffer_head *root_bh, u64 blkno, u32 cpos, u32 len, void *para)
typedef int(	xattr_bucket_func )(struct inode *inode, struct ocfs2_xattr_bucket *bucket, void *para)
typedef int(	should_xattr_reflinked )(struct ocfs2_xattr_entry *xe)
typedef int(	get_xattr_value_root )(struct super_block *sb, struct buffer_head *bh, struct ocfs2_xattr_header *xh, int offset, struct ocfs2_xattr_value_root **xv, struct buffer_head **ret_bh, void *para)

Functions
int	ocfs2_calc_security_init (struct inode *dir, struct ocfs2_security_xattr_info *si, int *want_clusters, int *xattr_credits, struct ocfs2_alloc_context **xattr_ac)
int	ocfs2_calc_xattr_init (struct inode *dir, struct buffer_head *dir_bh, umode_t mode, struct ocfs2_security_xattr_info *si, int *want_clusters, int *xattr_credits, int *want_meta)
int	ocfs2_has_inline_xattr_value_outside (struct inode *inode, struct ocfs2_dinode *di)
ssize_t	ocfs2_listxattr (struct dentry *dentry, char *buffer, size_t size)
int	ocfs2_xattr_get_nolock (struct inode *inode, struct buffer_head *di_bh, int name_index, const char *name, void *buffer, size_t buffer_size)
int	ocfs2_xattr_remove (struct inode *inode, struct buffer_head *di_bh)
int	ocfs2_xattr_set_handle (handle_t *handle, struct inode *inode, struct buffer_head *di_bh, int name_index, const char *name, const void *value, size_t value_len, int flags, struct ocfs2_alloc_context *meta_ac, struct ocfs2_alloc_context *data_ac)
int	ocfs2_xattr_set (struct inode *inode, int name_index, const char *name, const void *value, size_t value_len, int flags)
int	ocfs2_xattr_attach_refcount_tree (struct inode *inode, struct buffer_head *fe_bh, struct ocfs2_caching_info *ref_ci, struct buffer_head *ref_root_bh, struct ocfs2_cached_dealloc_ctxt *dealloc)
int	ocfs2_reflink_xattrs (struct inode *old_inode, struct buffer_head *old_bh, struct inode *new_inode, struct buffer_head *new_bh, bool preserve_security)
int	ocfs2_init_security_and_acl (struct inode *dir, struct inode *inode, const struct qstr *qstr)
int	ocfs2_initxattrs (struct inode *inode, const struct xattr *xattr_array, void *fs_info)
int	ocfs2_init_security_get (struct inode *inode, struct inode *dir, const struct qstr *qstr, struct ocfs2_security_xattr_info *si)
int	ocfs2_init_security_set (handle_t *handle, struct inode *inode, struct buffer_head *di_bh, struct ocfs2_security_xattr_info *si, struct ocfs2_alloc_context *xattr_ac, struct ocfs2_alloc_context *data_ac)

Variables
struct xattr_handler *	ocfs2_xattr_handlers []
struct xattr_handler	ocfs2_xattr_security_handler
struct xattr_handler	ocfs2_xattr_trusted_handler
struct xattr_handler	ocfs2_xattr_user_handler

Macro Definition Documentation

#define bucket_blkno

(

_b

)

((_b)->bu_bhs[0]->b_blocknr)

Definition at line 326 of file xattr.c.

#define bucket_block	(		_b,
			_n
	)		((_b)->bu_bhs[(_n)]->b_data)

Definition at line 327 of file xattr.c.

#define bucket_xh

(

_b

)

((struct ocfs2_xattr_header *)bucket_block((_b), 0))

Definition at line 328 of file xattr.c.

#define OCFS2_XATTR_FREE_IN_BLOCK

(

ptr

)

Value:

((ptr)->i_sb->s_blocksize \
                     - sizeof(struct ocfs2_xattr_block) \
                     - sizeof(struct ocfs2_xattr_header) \
                     - OCFS2_XATTR_HEADER_GAP)

Definition at line 91 of file xattr.c.

#define OCFS2_XATTR_FREE_IN_IBODY

Value:

(OCFS2_MIN_XATTR_INLINE_SIZE \
                     - sizeof(struct ocfs2_xattr_header) \
                     - OCFS2_XATTR_HEADER_GAP)

Definition at line 88 of file xattr.c.

#define OCFS2_XATTR_HEADER_GAP   4

Definition at line 87 of file xattr.c.

#define OCFS2_XATTR_INLINE_SIZE   80

Definition at line 86 of file xattr.c.

#define OCFS2_XATTR_ROOT_SIZE   (sizeof(struct ocfs2_xattr_def_value_root))

Definition at line 85 of file xattr.c.

Typedef Documentation

typedef int( get_xattr_value_root)(struct super_block *sb, struct buffer_head *bh, struct ocfs2_xattr_header *xh, int offset, struct ocfs2_xattr_value_root **xv, struct buffer_head **ret_bh, void *para)

Definition at line 6182 of file xattr.c.

typedef int( should_xattr_reflinked)(struct ocfs2_xattr_entry *xe)

Definition at line 6161 of file xattr.c.

typedef int( xattr_bucket_func)(struct inode *inode, struct ocfs2_xattr_bucket *bucket, void *para)

Definition at line 3719 of file xattr.c.

typedef int( xattr_tree_rec_func)(struct inode *inode, struct buffer_head *root_bh, u64 blkno, u32 cpos, u32 len, void *para)

Definition at line 281 of file xattr.c.

Function Documentation

int ocfs2_calc_security_init	(	struct inode *	dir,
		struct ocfs2_security_xattr_info *	si,
		int *	want_clusters,
		int *	xattr_credits,
		struct ocfs2_alloc_context **	xattr_ac
	)

Definition at line 586 of file xattr.c.

int ocfs2_calc_xattr_init	(	struct inode *	dir,
		struct buffer_head *	dir_bh,
		umode_t	mode,
		struct ocfs2_security_xattr_info *	si,
		int *	want_clusters,
		int *	xattr_credits,
		int *	want_meta
	)

Definition at line 624 of file xattr.c.

int ocfs2_has_inline_xattr_value_outside	(	struct inode *	inode,
		struct ocfs2_dinode *	di
	)

Definition at line 939 of file xattr.c.

int ocfs2_init_security_and_acl	(	struct inode *	dir,
		struct inode *	inode,
		const struct qstr *	qstr
	)

Definition at line 7184 of file xattr.c.

int ocfs2_init_security_get	(	struct inode *	inode,
		struct inode *	dir,
		const struct qstr *	qstr,
		struct ocfs2_security_xattr_info *	si
	)

Definition at line 7265 of file xattr.c.

int ocfs2_init_security_set	(	handle_t *	handle,
		struct inode *	inode,
		struct buffer_head *	di_bh,
		struct ocfs2_security_xattr_info *	si,
		struct ocfs2_alloc_context *	xattr_ac,
		struct ocfs2_alloc_context *	data_ac
	)

Definition at line 7282 of file xattr.c.

int ocfs2_initxattrs	(	struct inode *	inode,
		const struct xattr *	xattr_array,
		void *	fs_info
	)

Definition at line 7249 of file xattr.c.

ssize_t ocfs2_listxattr	(	struct dentry *	dentry,
		char *	buffer,
		size_t	size
	)

Definition at line 1010 of file xattr.c.

int ocfs2_reflink_xattrs	(	struct inode *	old_inode,
		struct buffer_head *	old_bh,
		struct inode *	new_inode,
		struct buffer_head *	new_bh,
		bool	preserve_security
	)

Definition at line 7102 of file xattr.c.

int ocfs2_xattr_attach_refcount_tree	(	struct inode *	inode,
		struct buffer_head *	fe_bh,
		struct ocfs2_caching_info *	ref_ci,
		struct buffer_head *	ref_root_bh,
		struct ocfs2_cached_dealloc_ctxt *	dealloc
	)

Definition at line 6119 of file xattr.c.

int ocfs2_xattr_get_nolock	(	struct inode *	inode,
		struct buffer_head *	di_bh,
		int	name_index,
		const char *	name,
		void *	buffer,
		size_t	buffer_size
	)

Definition at line 1260 of file xattr.c.

int ocfs2_xattr_remove	(	struct inode *	inode,
		struct buffer_head *	di_bh
	)

Definition at line 2539 of file xattr.c.

int ocfs2_xattr_set	(	struct inode *	inode,
		int	name_index,
		const char *	name,
		const void *	value,
		size_t	value_len,
		int	flags
	)

Definition at line 3504 of file xattr.c.

int ocfs2_xattr_set_handle	(	handle_t *	handle,
		struct inode *	inode,
		struct buffer_head *	di_bh,
		int	name_index,
		const char *	name,
		const void *	value,
		size_t	value_len,
		int	flags,
		struct ocfs2_alloc_context *	meta_ac,
		struct ocfs2_alloc_context *	data_ac
	)

Definition at line 3421 of file xattr.c.

Variable Documentation

struct xattr_handler* ocfs2_xattr_handlers[]

Initial value:

= {
    &ocfs2_xattr_user_handler,
    &ocfs2_xattr_acl_access_handler,
    &ocfs2_xattr_acl_default_handler,
    &ocfs2_xattr_trusted_handler,
    &ocfs2_xattr_security_handler,
    NULL
}

Definition at line 100 of file xattr.c.

struct xattr_handler ocfs2_xattr_security_handler

Initial value:

= {
    .prefix = XATTR_SECURITY_PREFIX,
    .list   = ocfs2_xattr_security_list,
    .get    = ocfs2_xattr_security_get,
    .set    = ocfs2_xattr_security_set,
}

Definition at line 7295 of file xattr.c.

struct xattr_handler ocfs2_xattr_trusted_handler

Initial value:

= {
    .prefix = XATTR_TRUSTED_PREFIX,
    .list   = ocfs2_xattr_trusted_list,
    .get    = ocfs2_xattr_trusted_get,
    .set    = ocfs2_xattr_trusted_set,
}

Definition at line 7339 of file xattr.c.

struct xattr_handler ocfs2_xattr_user_handler

Initial value:

= {
    .prefix = XATTR_USER_PREFIX,
    .list   = ocfs2_xattr_user_list,
    .get    = ocfs2_xattr_user_get,
    .set    = ocfs2_xattr_user_set,
}

Definition at line 7395 of file xattr.c.