^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * fs/cifs/cifs_fs_sb.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) International Business Machines Corp., 2002,2004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author(s): Steve French (sfrench@us.ibm.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * This library is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * it under the terms of the GNU Lesser General Public License as published
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * by the Free Software Foundation; either version 2.1 of the License, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * This library is distributed in the hope that it will be useful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * but WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * the GNU Lesser General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/rbtree.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #ifndef _CIFS_FS_SB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define _CIFS_FS_SB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/backing-dev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define CIFS_MOUNT_NO_PERM 1 /* do not do client vfs_perm check */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define CIFS_MOUNT_SET_UID 2 /* set current's euid in create etc. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define CIFS_MOUNT_SERVER_INUM 4 /* inode numbers from uniqueid from server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define CIFS_MOUNT_DIRECT_IO 8 /* do not write nor read through page cache */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define CIFS_MOUNT_NO_XATTR 0x10 /* if set - disable xattr support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define CIFS_MOUNT_NO_BRL 0x100 /* No sending byte range locks to srv */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define CIFS_MOUNT_CIFS_ACL 0x200 /* send ACL requests to non-POSIX srv */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define CIFS_MOUNT_OVERR_UID 0x400 /* override uid returned from server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define CIFS_MOUNT_OVERR_GID 0x800 /* override gid returned from server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define CIFS_MOUNT_DYNPERM 0x1000 /* allow in-memory only mode setting */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define CIFS_MOUNT_NOPOSIXBRL 0x2000 /* mandatory not posix byte range lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define CIFS_MOUNT_NOSSYNC 0x4000 /* don't do slow SMBflush on every sync*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define CIFS_MOUNT_FSCACHE 0x8000 /* local caching enabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define CIFS_MOUNT_MF_SYMLINKS 0x10000 /* Minshall+French Symlinks enabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define CIFS_MOUNT_MULTIUSER 0x20000 /* multiuser mount */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define CIFS_MOUNT_STRICT_IO 0x40000 /* strict cache mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define CIFS_MOUNT_RWPIDFORWARD 0x80000 /* use pid forwarding for rw */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define CIFS_MOUNT_POSIXACL 0x100000 /* mirror of SB_POSIXACL in mnt_cifs_flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define CIFS_MOUNT_MAP_SFM_CHR 0x800000 /* SFM/MAC mapping for illegal chars */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define CIFS_MOUNT_USE_PREFIX_PATH 0x1000000 /* make subpath with unaccessible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * root mountable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define CIFS_MOUNT_UID_FROM_ACL 0x2000000 /* try to get UID via special SID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define CIFS_MOUNT_NO_HANDLE_CACHE 0x4000000 /* disable caching dir handles */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define CIFS_MOUNT_NO_DFS 0x8000000 /* disable DFS resolving */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define CIFS_MOUNT_MODE_FROM_SID 0x10000000 /* retrieve mode from special ACE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define CIFS_MOUNT_RO_CACHE 0x20000000 /* assumes share will not change */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define CIFS_MOUNT_RW_CACHE 0x40000000 /* assumes only client accessing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct cifs_sb_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct rb_root tlink_tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) spinlock_t tlink_tree_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct tcon_link *master_tlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct nls_table *local_nls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) unsigned int bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) unsigned int rsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) unsigned int wsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) unsigned long actimeo; /* attribute cache timeout (jiffies) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) atomic_t active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) kuid_t mnt_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) kgid_t mnt_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) kuid_t mnt_backupuid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) kgid_t mnt_backupgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) umode_t mnt_file_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) umode_t mnt_dir_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) unsigned int mnt_cifs_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) char *mountdata; /* options received at mount time or via DFS refs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct delayed_work prune_tlinks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /* only used when CIFS_MOUNT_USE_PREFIX_PATH is set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) char *prepath;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * Path initially provided by the mount call. We might connect
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * to something different via DFS but we want to keep it to do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * failover properly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) char *origin_fullpath; /* \\HOST\SHARE\[OPTIONAL PATH] */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * Indicate whether serverino option was turned off later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * (cifs_autodisable_serverino) in order to match new mounts.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) bool mnt_cifs_serverino_autodisabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #endif /* _CIFS_FS_SB_H */