/*
   *   fs/cifs/cifs_fs_sb.h
   *
   *   Copyright (c) International Business Machines  Corp., 2002,2004
   *   Author(s): Steve French (sfrench@us.ibm.com)
   *
   *   This library is free software; you can redistribute it and/or modify
   *   it under the terms of the GNU Lesser General Public License as published
   *   by the Free Software Foundation; either version 2.1 of the License, or
   *   (at your option) any later version.
   *
   *   This library 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 Lesser General Public License for more details.
   *
   */

  #include <linux/rbtree.h>

  #ifndef _CIFS_FS_SB_H
  #define _CIFS_FS_SB_H

  #include <linux/backing-dev.h>

  #define CIFS_MOUNT_NO_PERM      1 /* do not do client vfs_perm check */

  #define CIFS_MOUNT_SET_UID      2 /* set current's euid in create etc. */

  #define CIFS_MOUNT_SERVER_INUM  4 /* inode numbers from uniqueid from server  */

  #define CIFS_MOUNT_DIRECT_IO    8 /* do not write nor read through page cache */

  #define CIFS_MOUNT_NO_XATTR     0x10  /* if set - disable xattr support       */
  #define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames   */
  #define CIFS_MOUNT_POSIX_PATHS  0x40  /* Negotiate posix pathnames if possible*/
  #define CIFS_MOUNT_UNX_EMUL     0x80  /* Network compat with SFUnix emulation */
  #define CIFS_MOUNT_NO_BRL       0x100 /* No sending byte range locks to srv   */
  #define CIFS_MOUNT_CIFS_ACL     0x200 /* send ACL requests to non-POSIX srv   */
  #define CIFS_MOUNT_OVERR_UID    0x400 /* override uid returned from server    */
  #define CIFS_MOUNT_OVERR_GID    0x800 /* override gid returned from server    */

  #define CIFS_MOUNT_DYNPERM      0x1000 /* allow in-memory only mode setting   */
  #define CIFS_MOUNT_NOPOSIXBRL   0x2000 /* mandatory not posix byte range lock */

  #define CIFS_MOUNT_NOSSYNC      0x4000 /* don't do slow SMBflush on every sync*/

  #define CIFS_MOUNT_FSCACHE	0x8000 /* local caching enabled */

  #define CIFS_MOUNT_MF_SYMLINKS	0x10000 /* Minshall+French Symlinks enabled */

  #define CIFS_MOUNT_MULTIUSER	0x20000 /* multiuser mount */

  #define CIFS_MOUNT_STRICT_IO	0x40000 /* strict cache mode */

  #define CIFS_MOUNT_RWPIDFORWARD	0x80000 /* use pid forwarding for rw */

  #define CIFS_MOUNT_POSIXACL	0x100000 /* mirror of SB_POSIXACL in mnt_cifs_flags */

  #define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */
  #define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */

  #define CIFS_MOUNT_MAP_SFM_CHR	0x800000 /* SFM/MAC mapping for illegal chars */

  #define CIFS_MOUNT_USE_PREFIX_PATH 0x1000000 /* make subpath with unaccessible
  					      * root mountable
  					      */

  #define CIFS_MOUNT_UID_FROM_ACL 0x2000000 /* try to get UID via special SID */

  #define CIFS_MOUNT_NO_HANDLE_CACHE 0x4000000 /* disable caching dir handles */

  #define CIFS_MOUNT_NO_DFS 0x8000000 /* disable DFS resolving */

  #define CIFS_MOUNT_MODE_FROM_SID 0x10000000 /* retrieve mode from special ACE */

  #define CIFS_MOUNT_RO_CACHE	0x20000000  /* assumes share will not change */

  #define CIFS_MOUNT_RW_CACHE	0x40000000  /* assumes only client accessing */

  
  struct cifs_sb_info {

  	struct rb_root tlink_tree;

  	spinlock_t tlink_tree_lock;

  	struct tcon_link *master_tlink;

  	struct nls_table *local_nls;

  	unsigned int bsize;

  	unsigned int rsize;
  	unsigned int wsize;

  	unsigned long actimeo; /* attribute cache timeout (jiffies) */

  	atomic_t active;

  	kuid_t	mnt_uid;
  	kgid_t	mnt_gid;
  	kuid_t	mnt_backupuid;
  	kgid_t	mnt_backupgid;

  	umode_t	mnt_file_mode;
  	umode_t	mnt_dir_mode;

  	unsigned int mnt_cifs_flags;

  	char   *mountdata; /* options received at mount time or via DFS refs */

  	struct delayed_work prune_tlinks;

  	struct rcu_head rcu;

  
  	/* only used when CIFS_MOUNT_USE_PREFIX_PATH is set */

  	char *prepath;

  
  	/*
  	 * Path initially provided by the mount call. We might connect
  	 * to something different via DFS but we want to keep it to do
  	 * failover properly.
  	 */
  	char *origin_fullpath; /* \\HOST\SHARE\[OPTIONAL PATH] */

  	/*
  	 * Indicate whether serverino option was turned off later
  	 * (cifs_autodisable_serverino) in order to match new mounts.
  	 */
  	bool mnt_cifs_serverino_autodisabled;

  };
  #endif				/* _CIFS_FS_SB_H */