1 /* SPDX-License-Identifier: LGPL-2.1 */
5 * Copyright (c) International Business Machines Corp., 2002,2004
6 * Author(s): Steve French (sfrench@us.ibm.com)
9 #include <linux/rbtree.h>
14 #include <linux/backing-dev.h>
16 #define CIFS_MOUNT_NO_PERM 1 /* do not do client vfs_perm check */
17 #define CIFS_MOUNT_SET_UID 2 /* set current's euid in create etc. */
18 #define CIFS_MOUNT_SERVER_INUM 4 /* inode numbers from uniqueid from server */
19 #define CIFS_MOUNT_DIRECT_IO 8 /* do not write nor read through page cache */
20 #define CIFS_MOUNT_NO_XATTR 0x10 /* if set - disable xattr support */
21 #define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */
22 #define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible*/
23 #define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
24 #define CIFS_MOUNT_NO_BRL 0x100 /* No sending byte range locks to srv */
25 #define CIFS_MOUNT_CIFS_ACL 0x200 /* send ACL requests to non-POSIX srv */
26 #define CIFS_MOUNT_OVERR_UID 0x400 /* override uid returned from server */
27 #define CIFS_MOUNT_OVERR_GID 0x800 /* override gid returned from server */
28 #define CIFS_MOUNT_DYNPERM 0x1000 /* allow in-memory only mode setting */
29 #define CIFS_MOUNT_NOPOSIXBRL 0x2000 /* mandatory not posix byte range lock */
30 #define CIFS_MOUNT_NOSSYNC 0x4000 /* don't do slow SMBflush on every sync*/
31 #define CIFS_MOUNT_FSCACHE 0x8000 /* local caching enabled */
32 #define CIFS_MOUNT_MF_SYMLINKS 0x10000 /* Minshall+French Symlinks enabled */
33 #define CIFS_MOUNT_MULTIUSER 0x20000 /* multiuser mount */
34 #define CIFS_MOUNT_STRICT_IO 0x40000 /* strict cache mode */
35 #define CIFS_MOUNT_RWPIDFORWARD 0x80000 /* use pid forwarding for rw */
36 #define CIFS_MOUNT_POSIXACL 0x100000 /* mirror of SB_POSIXACL in mnt_cifs_flags */
37 #define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */
38 #define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */
39 #define CIFS_MOUNT_MAP_SFM_CHR 0x800000 /* SFM/MAC mapping for illegal chars */
40 #define CIFS_MOUNT_USE_PREFIX_PATH 0x1000000 /* make subpath with unaccessible
43 #define CIFS_MOUNT_UID_FROM_ACL 0x2000000 /* try to get UID via special SID */
44 #define CIFS_MOUNT_NO_HANDLE_CACHE 0x4000000 /* disable caching dir handles */
45 #define CIFS_MOUNT_NO_DFS 0x8000000 /* disable DFS resolving */
46 #define CIFS_MOUNT_MODE_FROM_SID 0x10000000 /* retrieve mode from special ACE */
47 #define CIFS_MOUNT_RO_CACHE 0x20000000 /* assumes share will not change */
48 #define CIFS_MOUNT_RW_CACHE 0x40000000 /* assumes only client accessing */
49 #define CIFS_MOUNT_SHUTDOWN 0x80000000
52 struct rb_root tlink_tree;
53 spinlock_t tlink_tree_lock;
54 struct tcon_link *master_tlink;
55 struct nls_table *local_nls;
56 struct smb3_fs_context *ctx;
58 unsigned int mnt_cifs_flags;
59 struct delayed_work prune_tlinks;
62 /* only used when CIFS_MOUNT_USE_PREFIX_PATH is set */
66 * Canonical DFS path initially provided by the mount call. We might connect to something
67 * different via DFS but we want to keep it to do failover properly.
69 char *origin_fullpath; /* \\HOST\SHARE\[OPTIONAL PATH] */
70 /* randomly generated 128-bit number for indexing dfs mount groups in referral cache */
73 * Indicate whether serverino option was turned off later
74 * (cifs_autodisable_serverino) in order to match new mounts.
76 bool mnt_cifs_serverino_autodisabled;
78 * Available once the mount has completed.
82 #endif /* _CIFS_FS_SB_H */