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use linux security mechanisms
Merge of 2.3.99pre2-xfs:slinx:46379a by ananth.

  Merge of 2.3.42-xfs:slinx:46379a by ananth.

/*
 * Copyright (C) 1999 Silicon Graphics, Inc.  All Rights Reserved.
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 */
#ifndef __XFS_UTILS_H__
#define __XFS_UTILS_H__

#define IRELE(ip)	VN_RELE(XFS_ITOV(ip))
#define IHOLD(ip)	VN_HOLD(XFS_ITOV(ip))
#define	ITRACE(ip)	vn_trace_ref(XFS_ITOV(ip), __FILE__, __LINE__, \
				(inst_t *)__return_address)

#define DLF_IGET	0x01	/* get entry inode if name lookup succeeds */
#define	DLF_NODNLC	0x02	/* don't use the dnlc */
#define	DLF_LOCK_SHARED	0x04	/* directory locked shared */

struct bhv_desc;
struct cred;
struct ncfastdata;
struct pathname;
struct vnode;
struct xfs_inode;
struct xfs_mount;
struct xfs_trans;

extern int
xfs_rename(
	struct bhv_desc	*src_dir_bdp,
	char		*src_name,
	struct vnode	*target_dir_vp,
	char		*target_name,
	struct pathname	*target_pnp,
	struct cred	*credp);

extern int
xfs_link(
	bhv_desc_t	*target_dir_bdp,
	struct vnode	*src_vp,
	char		*target_name,
	struct cred	*credp);

#ifdef	CELL_CAPABLE
extern int
cxfs_rename(
	struct bhv_desc	*src_dir_bdp,
	char		*src_name,
	struct vnode	*target_dir_vp,
	char		*target_name,
	struct pathname	*target_pnp,
	struct cred	*credp);

extern int
cxfs_link(
	bhv_desc_t	*target_dir_bdp,
	struct vnode	*src_vp,
	char		*target_name,
	struct cred	*credp);

#endif	/* CELL_CAPABLE */

extern int
xfs_dir_lookup_int(
	struct xfs_trans	*tp,
	struct bhv_desc		*dir_bdp,
	int		 	flags,
	char         		*name,
	struct pathname   	*pnp,
	xfs_ino_t    		*inum,
	struct xfs_inode	**ipp,
	struct ncfastdata	*fd,
	uint			*dir_unlocked);

extern int
xfs_truncate_file(
	struct xfs_mount	*mp,
	struct xfs_inode	*ip);

extern int 	
xfs_dir_ialloc(
	struct xfs_trans 	**tpp, 
	struct xfs_inode 	*dp, 
	mode_t 			mode, 
	nlink_t 		nlink, 
	dev_t 			rdev,
	struct cred 		*credp,
	prid_t 			prid,
	int			okalloc,
	struct xfs_inode	**ipp,
	int 			*committed);

extern int
xfs_stickytest(
	struct xfs_inode	*dp,
	struct xfs_inode	*ip);

extern int
xfs_droplink(
	struct xfs_trans	*tp,
	struct xfs_inode	*ip);

extern int
xfs_bumplink(
	struct xfs_trans	*tp,
	struct xfs_inode	*ip);

extern void
xfs_bump_ino_vers2(
	struct xfs_trans	*tp,
	struct xfs_inode	*ip);

#if defined(DEBUG) || defined(INDUCE_IO_ERROR)
extern int
xfs_get_fsinfo(
	int		fd,
	char		**fsname,
	int64_t		*fsid);
#endif

extern int
xfs_mk_sharedro(
	int		fd);

extern int
xfs_clear_sharedro(
	int		fd);

extern int      xfs_pre_rename(struct vnode *vp);
extern int      xfs_pre_remove(struct vnode *vp);
extern int      xfs_pre_rmdir(struct vnode *vp);
extern void     xfs_post_rename(struct vnode *vp);
extern void     xfs_post_remove(struct vnode * vp, int last_unlink);
extern void     xfs_post_rmdir(struct vnode * vp, int last_unlink);


#ifdef DEBUG
extern int
xfs_isshutdown(
	struct bhv_desc	*bhv);
#endif

#endif /* XFS_UTILS_H */