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 */
45/* extern const struct super_operations cifs_super_ops;*/
46extern void cifs_read_inode(struct inode *);
47/*extern void cifs_delete_inode(struct inode *);*/  /* BB not needed yet */
48/* extern void cifs_write_inode(struct inode *); */ /* BB not needed yet */
49
50/* Functions related to inodes */
51extern const struct inode_operations cifs_dir_inode_ops;
52extern struct inode *cifs_root_iget(struct super_block *, unsigned long);
53extern int cifs_create(struct inode *, struct dentry *, int,
54		       struct nameidata *);
55extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
56				  struct nameidata *);
57extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
58extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
59extern int cifs_mknod(struct inode *, struct dentry *, int, dev_t);
60extern int cifs_mkdir(struct inode *, struct dentry *, int);
61extern int cifs_rmdir(struct inode *, struct dentry *);
62extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
63		       struct dentry *);
64extern int cifs_revalidate_file(struct file *filp);
65extern int cifs_revalidate_dentry(struct dentry *);
66extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
67extern int cifs_setattr(struct dentry *, struct iattr *);
68
69extern const struct inode_operations cifs_file_inode_ops;
70extern const struct inode_operations cifs_symlink_inode_ops;
71extern const struct inode_operations cifs_dfs_referral_inode_operations;
72
73
74/* Functions related to files and directories */
75extern const struct file_operations cifs_file_ops;
76extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
77extern const struct file_operations cifs_file_nobrl_ops;
78extern const struct file_operations cifs_file_direct_nobrl_ops; /* no brlocks */
79extern int cifs_open(struct inode *inode, struct file *file);
80extern int cifs_close(struct inode *inode, struct file *file);
81extern int cifs_closedir(struct inode *inode, struct file *file);
82extern ssize_t cifs_user_read(struct file *file, char __user *read_data,
83			 size_t read_size, loff_t *poffset);
84extern ssize_t cifs_user_write(struct file *file, const char __user *write_data,
85			 size_t write_size, loff_t *poffset);
86extern int cifs_lock(struct file *, int, struct file_lock *);
87extern int cifs_fsync(struct file *, int);
88extern int cifs_flush(struct file *, fl_owner_t id);
89extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
90extern const struct file_operations cifs_dir_ops;
91extern int cifs_dir_open(struct inode *inode, struct file *file);
92extern int cifs_readdir(struct file *file, void *direntry, filldir_t filldir);
93
94/* Functions related to dir entries */
95extern const struct dentry_operations cifs_dentry_ops;
96extern const struct dentry_operations cifs_ci_dentry_ops;
97
98/* Functions related to symlinks */
99extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
100extern void cifs_put_link(struct dentry *direntry,
101			  struct nameidata *nd, void *);
102extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
103			 int buflen);
104extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
105			const char *symname);
106extern int	cifs_removexattr(struct dentry *, const char *);
107extern int 	cifs_setxattr(struct dentry *, const char *, const void *,
108			size_t, int);
109extern ssize_t	cifs_getxattr(struct dentry *, const char *, void *, size_t);
110extern ssize_t	cifs_listxattr(struct dentry *, char *, size_t);
111extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
112
113#ifdef CONFIG_CIFS_EXPERIMENTAL
114extern const struct export_operations cifs_export_ops;
115#endif /* EXPERIMENTAL */
116
117#define CIFS_VERSION   "1.65"
118#endif				/* _CIFSFS_H */
119