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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / e89d3a46710908c3973397849e758f6ca42db77d / . / fs / cifs / cifsfs.h
blob: 15a5c5db038b8230cd36afab81274096f1e21db2 [file] [log] [blame]
Steve French929be902021-06-18 00:31:49 -0500[diff] [blame]1/* SPDX-License-Identifier: LGPL-2.1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]2/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]3 *
Steve French297647c2007-10-12 04:11:59 +0000[diff] [blame]4 * Copyright (c) International Business Machines Corp., 2002, 2007
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]5 * Author(s): Steve French (sfrench@us.ibm.com)
6 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]7 */
8
9#ifndef _CIFSFS_H
10#define _CIFSFS_H
11
Jeff Layton02323db2014-05-02 13:50:02 -0400[diff] [blame]12#include <linux/hash.h>
13
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]14#define ROOT_I 2
15
Jeff Laytoncc0bad72009-06-25 00:56:52 -0400[diff] [blame]16/*
17 * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
Jeff Layton02323db2014-05-02 13:50:02 -0400[diff] [blame]18 * so that it will fit. We use hash_64 to convert the value to 31 bits, and
19 * then add 1, to ensure that we don't end up with a 0 as the value.
Jeff Laytoncc0bad72009-06-25 00:56:52 -0400[diff] [blame]20 */
21static inline ino_t
22cifs_uniqueid_to_ino_t(u64 fileid)
23{
Yadan Fan1ee9f4b2016-02-29 14:44:57 +0800[diff] [blame]24 if ((sizeof(ino_t)) < (sizeof(u64)))
25 return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
26
Jeff Layton02323db2014-05-02 13:50:02 -0400[diff] [blame]27 return (ino_t)fileid;
Yadan Fan1ee9f4b2016-02-29 14:44:57 +0800[diff] [blame]28
Jeff Laytoncc0bad72009-06-25 00:56:52 -0400[diff] [blame]29}
30
Miklos Szeredia00be0e2016-09-16 12:44:21 +0200[diff] [blame]31static inline void cifs_set_time(struct dentry *dentry, unsigned long time)
32{
33 dentry->d_fsdata = (void *) time;
34}
35
36static inline unsigned long cifs_get_time(struct dentry *dentry)
37{
38 return (unsigned long) dentry->d_fsdata;
39}
40
Igor Mammedove6ab1582008-01-11 01:49:48 +0000[diff] [blame]41extern struct file_system_type cifs_fs_type;
Christoph Hellwigf5e54d62006-06-28 04:26:44 -0700[diff] [blame]42extern const struct address_space_operations cifs_addr_ops;
43extern const struct address_space_operations cifs_addr_ops_smallbuf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]44
Mateusz Guzik24261fc2013-03-08 16:30:03 +0100[diff] [blame]45/* Functions related to super block operations */
46extern void cifs_sb_active(struct super_block *sb);
47extern void cifs_sb_deactive(struct super_block *sb);
48
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]49/* Functions related to inodes */
Arjan van de Ven754661f2007-02-12 00:55:38 -0800[diff] [blame]50extern const struct inode_operations cifs_dir_inode_ops;
Shirish Pargaonkar9b6763e2011-02-21 23:56:59 -0600[diff] [blame]51extern struct inode *cifs_root_iget(struct super_block *);
Christian Brauner549c7292021-01-21 14:19:43 +0100[diff] [blame]52extern int cifs_create(struct user_namespace *, struct inode *,
53 struct dentry *, umode_t, bool excl);
Al Virod9585272012-06-22 12:39:14 +0400[diff] [blame]54extern int cifs_atomic_open(struct inode *, struct dentry *,
Al Viro44907d72018-06-08 13:32:02 -0400[diff] [blame]55 struct file *, unsigned, umode_t);
Steve French50c2f752007-07-13 00:33:32 +0000[diff] [blame]56extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
Al Viro00cd8dd2012-06-10 17:13:09 -0400[diff] [blame]57 unsigned int);
Jeff Layton5f0319a2008-09-16 14:05:16 -0400[diff] [blame]58extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]59extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
Christian Brauner549c7292021-01-21 14:19:43 +0100[diff] [blame]60extern int cifs_mknod(struct user_namespace *, struct inode *, struct dentry *,
61 umode_t, dev_t);
62extern int cifs_mkdir(struct user_namespace *, struct inode *, struct dentry *,
63 umode_t);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]64extern int cifs_rmdir(struct inode *, struct dentry *);
Christian Brauner549c7292021-01-21 14:19:43 +0100[diff] [blame]65extern int cifs_rename2(struct user_namespace *, struct inode *,
66 struct dentry *, struct inode *, struct dentry *,
67 unsigned int);
Pavel Shilovsky6feb9892011-04-07 18:18:11 +0400[diff] [blame]68extern int cifs_revalidate_file_attr(struct file *filp);
69extern int cifs_revalidate_dentry_attr(struct dentry *);
Jeff Laytonabab0952010-02-12 07:44:18 -0500[diff] [blame]70extern int cifs_revalidate_file(struct file *filp);
Jeff Laytondf2cf172010-02-12 07:44:16 -0500[diff] [blame]71extern int cifs_revalidate_dentry(struct dentry *);
Pavel Shilovsky6feb9892011-04-07 18:18:11 +0400[diff] [blame]72extern int cifs_invalidate_mapping(struct inode *inode);
Jeff Laytone284e532014-04-30 09:31:46 -0400[diff] [blame]73extern int cifs_revalidate_mapping(struct inode *inode);
Jeff Layton4f73c7d2014-04-30 09:31:47 -0400[diff] [blame]74extern int cifs_zap_mapping(struct inode *inode);
Christian Brauner549c7292021-01-21 14:19:43 +0100[diff] [blame]75extern int cifs_getattr(struct user_namespace *, const struct path *,
76 struct kstat *, u32, unsigned int);
77extern int cifs_setattr(struct user_namespace *, struct dentry *,
78 struct iattr *);
Ronnie Sahlberg2f3ebab2019-04-25 16:45:29 +1000[diff] [blame]79extern int cifs_fiemap(struct inode *, struct fiemap_extent_info *, u64 start,
80 u64 len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]81
Arjan van de Ven754661f2007-02-12 00:55:38 -0800[diff] [blame]82extern const struct inode_operations cifs_file_inode_ops;
83extern const struct inode_operations cifs_symlink_inode_ops;
Alexey Dobriyan6e1d5dc2009-09-21 17:01:11 -0700[diff] [blame]84extern const struct inode_operations cifs_dfs_referral_inode_operations;
Igor Mammedov6d5ae0d2008-01-25 03:28:31 +0000[diff] [blame]85
86
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]87/* Functions related to files and directories */
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -0800[diff] [blame]88extern const struct file_operations cifs_file_ops;
Steve Frenchd38d8c72007-06-28 19:44:13 +0000[diff] [blame]89extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
Pavel Shilovsky8be7e6b2010-12-12 13:11:13 +0300[diff] [blame]90extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
91extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
92extern const struct file_operations cifs_file_direct_nobrl_ops;
93extern const struct file_operations cifs_file_strict_nobrl_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]94extern int cifs_open(struct inode *inode, struct file *file);
95extern int cifs_close(struct inode *inode, struct file *file);
96extern int cifs_closedir(struct inode *inode, struct file *file);
Al Viroe6a7bcb2014-04-02 19:53:36 -0400[diff] [blame]97extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to);
Long Li6e6e2b82018-10-31 22:13:09 +0000[diff] [blame]98extern ssize_t cifs_direct_readv(struct kiocb *iocb, struct iov_iter *to);
Al Viroe6a7bcb2014-04-02 19:53:36 -0400[diff] [blame]99extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to);
Al Viro3dae8752014-04-03 12:05:17 -0400[diff] [blame]100extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from);
Long Li8c5f9c12018-10-31 22:13:10 +0000[diff] [blame]101extern ssize_t cifs_direct_writev(struct kiocb *iocb, struct iov_iter *from);
Al Viro3dae8752014-04-03 12:05:17 -0400[diff] [blame]102extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from);
Steve Frenchd0677992019-07-16 18:55:38 -0500[diff] [blame]103extern int cifs_flock(struct file *pfile, int cmd, struct file_lock *plock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]104extern int cifs_lock(struct file *, int, struct file_lock *);
Josef Bacik02c24a82011-07-16 20:44:56 -0400[diff] [blame]105extern int cifs_fsync(struct file *, loff_t, loff_t, int);
106extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
Miklos Szeredi75e1fcc2006-06-23 02:05:12 -0700[diff] [blame]107extern int cifs_flush(struct file *, fl_owner_t id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]108extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
Pavel Shilovsky7a6a19b2010-12-14 11:29:51 +0300[diff] [blame]109extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -0800[diff] [blame]110extern const struct file_operations cifs_dir_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]111extern int cifs_dir_open(struct inode *inode, struct file *file);
Al Virobe4ccdc2013-05-22 16:17:25 -0400[diff] [blame]112extern int cifs_readdir(struct file *file, struct dir_context *ctx);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]113
114/* Functions related to dir entries */
Al Viro4fd03e82009-02-20 05:57:07 +0000[diff] [blame]115extern const struct dentry_operations cifs_dentry_ops;
116extern const struct dentry_operations cifs_ci_dentry_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]117
David Howells01c64fe2011-01-14 18:45:47 +0000[diff] [blame]118#ifdef CONFIG_CIFS_DFS_UPCALL
119extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
120#else
121#define cifs_dfs_d_automount NULL
122#endif
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]124/* Functions related to symlinks */
Al Virofceef392015-12-29 15:58:39 -0500[diff] [blame]125extern const char *cifs_get_link(struct dentry *, struct inode *,
126 struct delayed_call *);
Christian Brauner549c7292021-01-21 14:19:43 +0100[diff] [blame]127extern int cifs_symlink(struct user_namespace *mnt_userns, struct inode *inode,
128 struct dentry *direntry, const char *symname);
Andreas Gruenbachera9ae0082016-04-22 12:11:38 +0200[diff] [blame]129
130#ifdef CONFIG_CIFS_XATTR
131extern const struct xattr_handler *cifs_xattr_handlers[];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]132extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
Andreas Gruenbachera9ae0082016-04-22 12:11:38 +0200[diff] [blame]133#else
134# define cifs_xattr_handlers NULL
135# define cifs_listxattr NULL
136#endif
137
Sachin Prabhu620d8742017-02-10 16:03:51 +0530[diff] [blame]138extern ssize_t cifs_file_copychunk_range(unsigned int xid,
139 struct file *src_file, loff_t off,
140 struct file *dst_file, loff_t destoff,
141 size_t len, unsigned int flags);
142
Steve Frenchf9ddcca2008-05-15 05:51:55 +0000[diff] [blame]143extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
Ronnie Sahlberg8bd0d702020-01-17 11:45:02 +1000[diff] [blame]144extern void cifs_setsize(struct inode *inode, loff_t offset);
145extern int cifs_truncate_page(struct address_space *mapping, loff_t from);
146
Ronnie Sahlberg24e0a1e2020-12-10 00:06:02 -0600[diff] [blame]147struct smb3_fs_context;
148extern struct dentry *cifs_smb3_do_mount(struct file_system_type *fs_type,
149 int flags, struct smb3_fs_context *ctx);
150
Paul Bollef3a6a602011-10-12 14:14:04 +0200[diff] [blame]151#ifdef CONFIG_CIFS_NFSD_EXPORT
Christoph Hellwig39655162007-10-21 16:42:17 -0700[diff] [blame]152extern const struct export_operations cifs_export_ops;
Paul Bollef3a6a602011-10-12 14:14:04 +0200[diff] [blame]153#endif /* CONFIG_CIFS_NFSD_EXPORT */
Steve French297647c2007-10-12 04:11:59 +0000[diff] [blame]154
Steve French51620152022-01-19 22:11:33 -0600[diff] [blame]155#define SMB3_PRODUCT_BUILD 35
156#define CIFS_VERSION "2.35"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]157#endif /* _CIFSFS_H */