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1/* SPDX-License-Identifier: LGPL-2.1 */2/*3 *4 * Copyright (c) International Business Machines Corp., 2002,20045 * Author(s): Steve French (sfrench@us.ibm.com)6 *7 */8#include <linux/rbtree.h>9 10#ifndef _CIFS_FS_SB_H11#define _CIFS_FS_SB_H12 13#include <linux/backing-dev.h>14 15#define CIFS_MOUNT_NO_PERM 1 /* do not do client vfs_perm check */16#define CIFS_MOUNT_SET_UID 2 /* set current's euid in create etc. */17#define CIFS_MOUNT_SERVER_INUM 4 /* inode numbers from uniqueid from server */18#define CIFS_MOUNT_DIRECT_IO 8 /* do not write nor read through page cache */19#define CIFS_MOUNT_NO_XATTR 0x10 /* if set - disable xattr support */20#define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */21#define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible*/22#define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */23#define CIFS_MOUNT_NO_BRL 0x100 /* No sending byte range locks to srv */24#define CIFS_MOUNT_CIFS_ACL 0x200 /* send ACL requests to non-POSIX srv */25#define CIFS_MOUNT_OVERR_UID 0x400 /* override uid returned from server */26#define CIFS_MOUNT_OVERR_GID 0x800 /* override gid returned from server */27#define CIFS_MOUNT_DYNPERM 0x1000 /* allow in-memory only mode setting */28#define CIFS_MOUNT_NOPOSIXBRL 0x2000 /* mandatory not posix byte range lock */29#define CIFS_MOUNT_NOSSYNC 0x4000 /* don't do slow SMBflush on every sync*/30#define CIFS_MOUNT_FSCACHE 0x8000 /* local caching enabled */31#define CIFS_MOUNT_MF_SYMLINKS 0x10000 /* Minshall+French Symlinks enabled */32#define CIFS_MOUNT_MULTIUSER 0x20000 /* multiuser mount */33#define CIFS_MOUNT_STRICT_IO 0x40000 /* strict cache mode */34#define CIFS_MOUNT_RWPIDFORWARD 0x80000 /* use pid forwarding for rw */35#define CIFS_MOUNT_POSIXACL 0x100000 /* mirror of SB_POSIXACL in mnt_cifs_flags */36#define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */37#define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */38#define CIFS_MOUNT_MAP_SFM_CHR 0x800000 /* SFM/MAC mapping for illegal chars */39#define CIFS_MOUNT_USE_PREFIX_PATH 0x1000000 /* make subpath with unaccessible40 * root mountable41 */42#define CIFS_MOUNT_UID_FROM_ACL 0x2000000 /* try to get UID via special SID */43#define CIFS_MOUNT_NO_HANDLE_CACHE 0x4000000 /* disable caching dir handles */44#define CIFS_MOUNT_NO_DFS 0x8000000 /* disable DFS resolving */45#define CIFS_MOUNT_MODE_FROM_SID 0x10000000 /* retrieve mode from special ACE */46#define CIFS_MOUNT_RO_CACHE 0x20000000 /* assumes share will not change */47#define CIFS_MOUNT_RW_CACHE 0x40000000 /* assumes only client accessing */48#define CIFS_MOUNT_SHUTDOWN 0x8000000049 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 struct smb3_fs_context *ctx;56 atomic_t active;57 unsigned int mnt_cifs_flags;58 struct delayed_work prune_tlinks;59 struct rcu_head rcu;60 61 /* only used when CIFS_MOUNT_USE_PREFIX_PATH is set */62 char *prepath;63 64 /*65 * Indicate whether serverino option was turned off later66 * (cifs_autodisable_serverino) in order to match new mounts.67 */68 bool mnt_cifs_serverino_autodisabled;69 /*70 * Available once the mount has completed.71 */72 struct dentry *root;73};74#endif /* _CIFS_FS_SB_H */75