blob: 64990ccd1b9c9900984931187db93d8ebeacef94 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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 */
Jeff Laytonb647c352010-10-28 11:16:44 -040018#include <linux/rbtree.h>
Jeff Layton9d002df2010-10-06 19:51:11 -040019
Linus Torvalds1da177e2005-04-16 15:20:36 -070020#ifndef _CIFS_FS_SB_H
21#define _CIFS_FS_SB_H
22
Jens Axboe8044f7f2010-04-22 12:09:48 +020023#include <linux/backing-dev.h>
24
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#define CIFS_MOUNT_NO_PERM 1 /* do not do client vfs_perm check */
David Howellsa001e5b2008-11-14 10:38:47 +110026#define CIFS_MOUNT_SET_UID 2 /* set current's euid in create etc. */
Steve French13a6e422008-12-02 17:24:33 +000027#define CIFS_MOUNT_SERVER_INUM 4 /* inode numbers from uniqueid from server */
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#define CIFS_MOUNT_DIRECT_IO 8 /* do not write nor read through page cache */
Steve French4523cc32007-04-30 20:13:06 +000029#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 */
Steve French13a6e422008-12-02 17:24:33 +000037#define CIFS_MOUNT_DYNPERM 0x1000 /* allow in-memory only mode setting */
38#define CIFS_MOUNT_NOPOSIXBRL 0x2000 /* mandatory not posix byte range lock */
Steve French4717bed2009-02-24 14:44:19 +000039#define CIFS_MOUNT_NOSSYNC 0x4000 /* don't do slow SMBflush on every sync*/
Suresh Jayaramanfa1df752010-07-05 18:13:36 +053040#define CIFS_MOUNT_FSCACHE 0x8000 /* local caching enabled */
Stefan Metzmacher1b12b9c2010-08-05 21:19:56 +020041#define CIFS_MOUNT_MF_SYMLINKS 0x10000 /* Minshall+French Symlinks enabled */
Jeff Layton6508d902010-09-29 19:51:11 -040042#define CIFS_MOUNT_MULTIUSER 0x20000 /* multiuser mount */
Pavel Shilovsky4f8ba8a2010-11-21 22:36:12 +030043#define CIFS_MOUNT_STRICT_IO 0x40000 /* strict cache mode */
Pavel Shilovskyd4ffff12011-05-26 06:02:00 +000044#define CIFS_MOUNT_RWPIDFORWARD 0x80000 /* use pid forwarding for rw */
Linus Torvalds1751e8a2017-11-27 13:05:09 -080045#define CIFS_MOUNT_POSIXACL 0x100000 /* mirror of SB_POSIXACL in mnt_cifs_flags */
Shirish Pargaonkar3d3ea8e2011-09-26 09:56:44 -050046#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 */
Steve Frenchb6938552014-09-25 13:20:05 -050048#define CIFS_MOUNT_MAP_SFM_CHR 0x800000 /* SFM/MAC mapping for illegal chars */
Aurelien Aptela6b50582016-05-25 19:59:09 +020049#define CIFS_MOUNT_USE_PREFIX_PATH 0x1000000 /* make subpath with unaccessible
50 * root mountable
51 */
Steve French95932652016-09-23 01:36:34 -050052#define CIFS_MOUNT_UID_FROM_ACL 0x2000000 /* try to get UID via special SID */
Steve French3d4ef9a2018-04-25 22:19:09 -050053#define CIFS_MOUNT_NO_HANDLE_CACHE 0x4000000 /* disable caching dir handles */
Aurelien Aptel83930722018-09-20 18:10:25 -070054#define CIFS_MOUNT_NO_DFS 0x8000000 /* disable DFS resolving */
Steve French412094a2019-06-24 02:01:42 -050055#define CIFS_MOUNT_MODE_FROM_SID 0x10000000 /* retrieve mode from special ACE */
Steve French83bbfa72019-08-27 23:58:54 -050056#define CIFS_MOUNT_RO_CACHE 0x20000000 /* assumes share will not change */
Steve French41e033f2019-08-30 02:12:41 -050057#define CIFS_MOUNT_RW_CACHE 0x40000000 /* assumes only client accessing */
Steve French087f7572021-04-29 00:18:43 -050058#define CIFS_MOUNT_SHUTDOWN 0x80000000
Linus Torvalds1da177e2005-04-16 15:20:36 -070059
60struct cifs_sb_info {
Jeff Laytonb647c352010-10-28 11:16:44 -040061 struct rb_root tlink_tree;
Jeff Layton9d002df2010-10-06 19:51:11 -040062 spinlock_t tlink_tree_lock;
Jeff Layton413e6612010-10-28 13:33:38 -040063 struct tcon_link *master_tlink;
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 struct nls_table *local_nls;
Ronnie Sahlbergd17abdf72020-11-10 08:59:26 +100065 struct smb3_fs_context *ctx;
Jeff Laytond7c86ff2010-10-11 15:07:19 -040066 atomic_t active;
Jeff Layton6508d902010-09-29 19:51:11 -040067 unsigned int mnt_cifs_flags;
Jeff Layton2de970f2010-10-06 19:51:12 -040068 struct delayed_work prune_tlinks;
Al Viro2e32cf52013-10-03 12:53:37 -040069 struct rcu_head rcu;
Paulo Alcantara93d5cb52018-11-14 17:13:25 -020070
71 /* only used when CIFS_MOUNT_USE_PREFIX_PATH is set */
Aurelien Aptela6b50582016-05-25 19:59:09 +020072 char *prepath;
Paulo Alcantara93d5cb52018-11-14 17:13:25 -020073
74 /*
Paulo Alcantarac870a8e2021-06-04 19:25:30 -030075 * Canonical DFS path initially provided by the mount call. We might connect to something
76 * different via DFS but we want to keep it to do failover properly.
Paulo Alcantara93d5cb52018-11-14 17:13:25 -020077 */
78 char *origin_fullpath; /* \\HOST\SHARE\[OPTIONAL PATH] */
Paulo Alcantarac9f71102021-06-04 19:25:29 -030079 /* randomly generated 128-bit number for indexing dfs mount groups in referral cache */
80 uuid_t dfs_mount_id;
Paulo Alcantara (SUSE)29fbeb72019-06-18 16:16:02 -030081 /*
82 * Indicate whether serverino option was turned off later
83 * (cifs_autodisable_serverino) in order to match new mounts.
84 */
85 bool mnt_cifs_serverino_autodisabled;
Ronnie Sahlberg269f67e2021-03-09 09:07:30 +100086 /*
87 * Available once the mount has completed.
88 */
89 struct dentry *root;
Linus Torvalds1da177e2005-04-16 15:20:36 -070090};
91#endif /* _CIFS_FS_SB_H */