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1/*
2 * fs/cifs/cifsfs.h
3 *
4 * Copyright (c) International Business Machines Corp., 2002, 2007
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 * You should have received a copy of the GNU Lesser General Public License
18 * along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#ifndef _CIFSFS_H
23#define _CIFSFS_H
24
25#define ROOT_I 2
26
27/*
28 * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
29 * so that it will fit.
30 */
31static inline ino_t
32cifs_uniqueid_to_ino_t(u64 fileid)
33{
34 ino_t ino = (ino_t) fileid;
35 if (sizeof(ino_t) < sizeof(u64))
36 ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
37 return ino;
38}
39
40extern struct file_system_type cifs_fs_type;
41extern const struct address_space_operations cifs_addr_ops;
42extern const struct address_space_operations cifs_addr_ops_smallbuf;
43
44/* Functions related to super block operations */
45extern void cifs_sb_active(struct super_block *sb);
46extern void cifs_sb_deactive(struct super_block *sb);
47
48/* Functions related to inodes */
49extern const struct inode_operations cifs_dir_inode_ops;
50extern struct inode *cifs_root_iget(struct super_block *);
51extern int cifs_create(struct inode *, struct dentry *, umode_t,
52 bool excl);
53extern int cifs_atomic_open(struct inode *, struct dentry *,
54 struct file *, unsigned, umode_t,
55 int *);
56extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
57 unsigned int);
58extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
59extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
60extern int cifs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
61extern int cifs_mkdir(struct inode *, struct dentry *, umode_t);
62extern int cifs_rmdir(struct inode *, struct dentry *);
63extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
64 struct dentry *);
65extern int cifs_revalidate_file_attr(struct file *filp);
66extern int cifs_revalidate_dentry_attr(struct dentry *);
67extern int cifs_revalidate_file(struct file *filp);
68extern int cifs_revalidate_dentry(struct dentry *);
69extern int cifs_invalidate_mapping(struct inode *inode);
70extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
71extern int cifs_setattr(struct dentry *, struct iattr *);
72
73extern const struct inode_operations cifs_file_inode_ops;
74extern const struct inode_operations cifs_symlink_inode_ops;
75extern const struct inode_operations cifs_dfs_referral_inode_operations;
76
77
78/* Functions related to files and directories */
79extern const struct file_operations cifs_file_ops;
80extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
81extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
82extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
83extern const struct file_operations cifs_file_direct_nobrl_ops;
84extern const struct file_operations cifs_file_strict_nobrl_ops;
85extern int cifs_open(struct inode *inode, struct file *file);
86extern int cifs_close(struct inode *inode, struct file *file);
87extern int cifs_closedir(struct inode *inode, struct file *file);
88extern ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
89 unsigned long nr_segs, loff_t pos);
90extern ssize_t cifs_strict_readv(struct kiocb *iocb, const struct iovec *iov,
91 unsigned long nr_segs, loff_t pos);
92extern ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
93 unsigned long nr_segs, loff_t pos);
94extern ssize_t cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
95 unsigned long nr_segs, loff_t pos);
96extern int cifs_lock(struct file *, int, struct file_lock *);
97extern int cifs_fsync(struct file *, loff_t, loff_t, int);
98extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
99extern int cifs_flush(struct file *, fl_owner_t id);
100extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
101extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
102extern const struct file_operations cifs_dir_ops;
103extern int cifs_dir_open(struct inode *inode, struct file *file);
104extern int cifs_readdir(struct file *file, struct dir_context *ctx);
105
106/* Functions related to dir entries */
107extern const struct dentry_operations cifs_dentry_ops;
108extern const struct dentry_operations cifs_ci_dentry_ops;
109
110#ifdef CONFIG_CIFS_DFS_UPCALL
111extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
112#else
113#define cifs_dfs_d_automount NULL
114#endif
115
116/* Functions related to symlinks */
117extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
118extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
119 int buflen);
120extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
121 const char *symname);
122extern int cifs_removexattr(struct dentry *, const char *);
123extern int cifs_setxattr(struct dentry *, const char *, const void *,
124 size_t, int);
125extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
126extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
127extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
128
129#ifdef CONFIG_CIFS_NFSD_EXPORT
130extern const struct export_operations cifs_export_ops;
131#endif /* CONFIG_CIFS_NFSD_EXPORT */
132
133#define CIFS_VERSION "2.02"
134#endif /* _CIFSFS_H */