1/*
2 *   fs/cifs/cifs_fs_sb.h
3 *
4 *   Copyright (c) International Business Machines  Corp., 2002,2004
5 *   Author(s): Steve French (sfrench@us.ibm.com)
6 *
7 *   This library is free software; you can redistribute it and/or modify
8 *   it under the terms of the GNU Lesser General Public License as published
9 *   by the Free Software Foundation; either version 2.1 of the License, or
10 *   (at your option) any later version.
11 *
12 *   This library is distributed in the hope that it will be useful,
13 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
15 *   the GNU Lesser General Public License for more details.
16 *
17 */
18#include <linux/rbtree.h>
19
20#ifndef _CIFS_FS_SB_H
21#define _CIFS_FS_SB_H
22
23#include <linux/backing-dev.h>
24
25#define CIFS_MOUNT_NO_PERM      1 /* do not do client vfs_perm check */
26#define CIFS_MOUNT_SET_UID      2 /* set current's euid in create etc. */
27#define CIFS_MOUNT_SERVER_INUM  4 /* inode numbers from uniqueid from server  */
28#define CIFS_MOUNT_DIRECT_IO    8 /* do not write nor read through page cache */
29#define CIFS_MOUNT_NO_XATTR     0x10  /* if set - disable xattr support       */
30#define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames   */
31#define CIFS_MOUNT_POSIX_PATHS  0x40  /* Negotiate posix pathnames if possible*/
32#define CIFS_MOUNT_UNX_EMUL     0x80  /* Network compat with SFUnix emulation */
33#define CIFS_MOUNT_NO_BRL       0x100 /* No sending byte range locks to srv   */
34#define CIFS_MOUNT_CIFS_ACL     0x200 /* send ACL requests to non-POSIX srv   */
35#define CIFS_MOUNT_OVERR_UID    0x400 /* override uid returned from server    */
36#define CIFS_MOUNT_OVERR_GID    0x800 /* override gid returned from server    */
37#define CIFS_MOUNT_DYNPERM      0x1000 /* allow in-memory only mode setting   */
38#define CIFS_MOUNT_NOPOSIXBRL   0x2000 /* mandatory not posix byte range lock */
39#define CIFS_MOUNT_NOSSYNC      0x4000 /* don't do slow SMBflush on every sync*/
40#define CIFS_MOUNT_FSCACHE	0x8000 /* local caching enabled */
41#define CIFS_MOUNT_MF_SYMLINKS	0x10000 /* Minshall+French Symlinks enabled */
42#define CIFS_MOUNT_MULTIUSER	0x20000 /* multiuser mount */
43#define CIFS_MOUNT_STRICT_IO	0x40000 /* strict cache mode */
44#define CIFS_MOUNT_RWPIDFORWARD	0x80000 /* use pid forwarding for rw */
45#define CIFS_MOUNT_POSIXACL	0x100000 /* mirror of MS_POSIXACL in mnt_cifs_flags */
46#define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */
47#define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */
48#define CIFS_MOUNT_MAP_SFM_CHR	0x800000 /* SFM/MAC mapping for illegal chars */
49
50struct cifs_sb_info {
51	struct rb_root tlink_tree;
52	spinlock_t tlink_tree_lock;
53	struct tcon_link *master_tlink;
54	struct nls_table *local_nls;
55	unsigned int rsize;
56	unsigned int wsize;
57	unsigned long actimeo; /* attribute cache timeout (jiffies) */
58	atomic_t active;
59	kuid_t	mnt_uid;
60	kgid_t	mnt_gid;
61	kuid_t	mnt_backupuid;
62	kgid_t	mnt_backupgid;
63	umode_t	mnt_file_mode;
64	umode_t	mnt_dir_mode;
65	unsigned int mnt_cifs_flags;
66	char   *mountdata; /* options received at mount time or via DFS refs */
67	struct backing_dev_info bdi;
68	struct delayed_work prune_tlinks;
69	struct rcu_head rcu;
70};
71#endif				/* _CIFS_FS_SB_H */
72