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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#include <linux/hash.h>
26
27#define ROOT_I 2
28
29/*
30 * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
31 * so that it will fit. We use hash_64 to convert the value to 31 bits, and
32 * then add 1, to ensure that we don't end up with a 0 as the value.
33 */
34static inline ino_t
35cifs_uniqueid_to_ino_t(u64 fileid)
36{
37 if ((sizeof(ino_t)) < (sizeof(u64)))
38 return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
39
40 return (ino_t)fileid;
41
42}
43
44extern struct file_system_type cifs_fs_type;
45extern const struct address_space_operations cifs_addr_ops;
46extern const struct address_space_operations cifs_addr_ops_smallbuf;
47
48/* Functions related to super block operations */
49extern void cifs_sb_active(struct super_block *sb);
50extern void cifs_sb_deactive(struct super_block *sb);
51
52/* Functions related to inodes */
53extern const struct inode_operations cifs_dir_inode_ops;
54extern struct inode *cifs_root_iget(struct super_block *);
55extern int cifs_create(struct inode *, struct dentry *, umode_t,
56 bool excl);
57extern int cifs_atomic_open(struct inode *, struct dentry *,
58 struct file *, unsigned, umode_t,
59 int *);
60extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
61 unsigned int);
62extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
63extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
64extern int cifs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
65extern int cifs_mkdir(struct inode *, struct dentry *, umode_t);
66extern int cifs_rmdir(struct inode *, struct dentry *);
67extern int cifs_rename2(struct inode *, struct dentry *, struct inode *,
68 struct dentry *, unsigned int);
69extern int cifs_revalidate_file_attr(struct file *filp);
70extern int cifs_revalidate_dentry_attr(struct dentry *);
71extern int cifs_revalidate_file(struct file *filp);
72extern int cifs_revalidate_dentry(struct dentry *);
73extern int cifs_invalidate_mapping(struct inode *inode);
74extern int cifs_revalidate_mapping(struct inode *inode);
75extern int cifs_zap_mapping(struct inode *inode);
76extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
77extern int cifs_setattr(struct dentry *, struct iattr *);
78
79extern const struct inode_operations cifs_file_inode_ops;
80extern const struct inode_operations cifs_symlink_inode_ops;
81extern const struct inode_operations cifs_dfs_referral_inode_operations;
82
83
84/* Functions related to files and directories */
85extern const struct file_operations cifs_file_ops;
86extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
87extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
88extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
89extern const struct file_operations cifs_file_direct_nobrl_ops;
90extern const struct file_operations cifs_file_strict_nobrl_ops;
91extern int cifs_open(struct inode *inode, struct file *file);
92extern int cifs_close(struct inode *inode, struct file *file);
93extern int cifs_closedir(struct inode *inode, struct file *file);
94extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to);
95extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to);
96extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from);
97extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from);
98extern int cifs_lock(struct file *, int, struct file_lock *);
99extern int cifs_fsync(struct file *, loff_t, loff_t, int);
100extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
101extern int cifs_flush(struct file *, fl_owner_t id);
102extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
103extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
104extern const struct file_operations cifs_dir_ops;
105extern int cifs_dir_open(struct inode *inode, struct file *file);
106extern int cifs_readdir(struct file *file, struct dir_context *ctx);
107
108/* Functions related to dir entries */
109extern const struct dentry_operations cifs_dentry_ops;
110extern const struct dentry_operations cifs_ci_dentry_ops;
111
112#ifdef CONFIG_CIFS_DFS_UPCALL
113extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
114#else
115#define cifs_dfs_d_automount NULL
116#endif
117
118/* Functions related to symlinks */
119extern const char *cifs_get_link(struct dentry *, struct inode *,
120 struct delayed_call *);
121extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
122 const char *symname);
123extern int cifs_removexattr(struct dentry *, const char *);
124extern int cifs_setxattr(struct dentry *, const char *, const void *,
125 size_t, int);
126extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
127extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
128extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
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 "2.08"
134#endif /* _CIFSFS_H */
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 inodes */
45extern const struct inode_operations cifs_dir_inode_ops;
46extern struct inode *cifs_root_iget(struct super_block *);
47extern int cifs_create(struct inode *, struct dentry *, umode_t,
48 struct nameidata *);
49extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
50 struct nameidata *);
51extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
52extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
53extern int cifs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
54extern int cifs_mkdir(struct inode *, struct dentry *, umode_t);
55extern int cifs_rmdir(struct inode *, struct dentry *);
56extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
57 struct dentry *);
58extern int cifs_revalidate_file_attr(struct file *filp);
59extern int cifs_revalidate_dentry_attr(struct dentry *);
60extern int cifs_revalidate_file(struct file *filp);
61extern int cifs_revalidate_dentry(struct dentry *);
62extern int cifs_invalidate_mapping(struct inode *inode);
63extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
64extern int cifs_setattr(struct dentry *, struct iattr *);
65
66extern const struct inode_operations cifs_file_inode_ops;
67extern const struct inode_operations cifs_symlink_inode_ops;
68extern const struct inode_operations cifs_dfs_referral_inode_operations;
69
70
71/* Functions related to files and directories */
72extern const struct file_operations cifs_file_ops;
73extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
74extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
75extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
76extern const struct file_operations cifs_file_direct_nobrl_ops;
77extern const struct file_operations cifs_file_strict_nobrl_ops;
78extern int cifs_open(struct inode *inode, struct file *file);
79extern int cifs_close(struct inode *inode, struct file *file);
80extern int cifs_closedir(struct inode *inode, struct file *file);
81extern ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
82 unsigned long nr_segs, loff_t pos);
83extern ssize_t cifs_strict_readv(struct kiocb *iocb, const struct iovec *iov,
84 unsigned long nr_segs, loff_t pos);
85extern ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
86 unsigned long nr_segs, loff_t pos);
87extern ssize_t cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
88 unsigned long nr_segs, loff_t pos);
89extern int cifs_lock(struct file *, int, struct file_lock *);
90extern int cifs_fsync(struct file *, loff_t, loff_t, int);
91extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
92extern int cifs_flush(struct file *, fl_owner_t id);
93extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
94extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
95extern const struct file_operations cifs_dir_ops;
96extern int cifs_dir_open(struct inode *inode, struct file *file);
97extern int cifs_readdir(struct file *file, void *direntry, filldir_t filldir);
98
99/* Functions related to dir entries */
100extern const struct dentry_operations cifs_dentry_ops;
101extern const struct dentry_operations cifs_ci_dentry_ops;
102
103#ifdef CONFIG_CIFS_DFS_UPCALL
104extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
105#else
106#define cifs_dfs_d_automount NULL
107#endif
108
109/* Functions related to symlinks */
110extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
111extern void cifs_put_link(struct dentry *direntry,
112 struct nameidata *nd, void *);
113extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
114 int buflen);
115extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
116 const char *symname);
117extern int cifs_removexattr(struct dentry *, const char *);
118extern int cifs_setxattr(struct dentry *, const char *, const void *,
119 size_t, int);
120extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
121extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
122extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
123
124#ifdef CONFIG_CIFS_NFSD_EXPORT
125extern const struct export_operations cifs_export_ops;
126#endif /* CONFIG_CIFS_NFSD_EXPORT */
127
128#define CIFS_VERSION "1.78"
129#endif /* _CIFSFS_H */