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 */
31 static inline ino_t
cifs_uniqueid_to_ino_t(u64 fileid)32 cifs_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
40 extern struct file_system_type cifs_fs_type;
41 extern const struct address_space_operations cifs_addr_ops;
42 extern const struct address_space_operations cifs_addr_ops_smallbuf;
43
44 /* Functions related to super block operations */
45 extern void cifs_sb_active(struct super_block *sb);
46 extern void cifs_sb_deactive(struct super_block *sb);
47
48 /* Functions related to inodes */
49 extern const struct inode_operations cifs_dir_inode_ops;
50 extern struct inode *cifs_root_iget(struct super_block *, unsigned long);
51 extern int cifs_create(struct inode *, struct dentry *, int,
52 struct nameidata *);
53 extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
54 struct nameidata *);
55 extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
56 extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
57 extern int cifs_mknod(struct inode *, struct dentry *, int, dev_t);
58 extern int cifs_mkdir(struct inode *, struct dentry *, int);
59 extern int cifs_rmdir(struct inode *, struct dentry *);
60 extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
61 struct dentry *);
62 extern int cifs_revalidate_file(struct file *filp);
63 extern int cifs_revalidate_dentry(struct dentry *);
64 extern void cifs_invalidate_mapping(struct inode *inode);
65 extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
66 extern int cifs_setattr(struct dentry *, struct iattr *);
67
68 extern const struct inode_operations cifs_file_inode_ops;
69 extern const struct inode_operations cifs_symlink_inode_ops;
70 extern const struct inode_operations cifs_dfs_referral_inode_operations;
71
72
73 /* Functions related to files and directories */
74 extern const struct file_operations cifs_file_ops;
75 extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
76 extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
77 extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
78 extern const struct file_operations cifs_file_direct_nobrl_ops;
79 extern const struct file_operations cifs_file_strict_nobrl_ops;
80 extern int cifs_open(struct inode *inode, struct file *file);
81 extern int cifs_close(struct inode *inode, struct file *file);
82 extern int cifs_closedir(struct inode *inode, struct file *file);
83 extern ssize_t cifs_user_read(struct file *file, char __user *read_data,
84 size_t read_size, loff_t *poffset);
85 extern ssize_t cifs_strict_readv(struct kiocb *iocb, const struct iovec *iov,
86 unsigned long nr_segs, loff_t pos);
87 extern ssize_t cifs_user_write(struct file *file, const char __user *write_data,
88 size_t write_size, loff_t *poffset);
89 extern ssize_t cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
90 unsigned long nr_segs, loff_t pos);
91 extern int cifs_lock(struct file *, int, struct file_lock *);
92 extern int cifs_fsync(struct file *, int);
93 extern int cifs_strict_fsync(struct file *, int);
94 extern int cifs_flush(struct file *, fl_owner_t id);
95 extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
96 extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
97 extern const struct file_operations cifs_dir_ops;
98 extern int cifs_dir_open(struct inode *inode, struct file *file);
99 extern int cifs_readdir(struct file *file, void *direntry, filldir_t filldir);
100
101 /* Functions related to dir entries */
102 extern const struct dentry_operations cifs_dentry_ops;
103 extern const struct dentry_operations cifs_ci_dentry_ops;
104
105 #ifdef CONFIG_CIFS_DFS_UPCALL
106 extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
107 #else
108 #define cifs_dfs_d_automount NULL
109 #endif
110
111 /* Functions related to symlinks */
112 extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
113 extern void cifs_put_link(struct dentry *direntry,
114 struct nameidata *nd, void *);
115 extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
116 int buflen);
117 extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
118 const char *symname);
119 extern int cifs_removexattr(struct dentry *, const char *);
120 extern int cifs_setxattr(struct dentry *, const char *, const void *,
121 size_t, int);
122 extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
123 extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
124 extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
125
126 #ifdef CONFIG_CIFS_EXPERIMENTAL
127 extern const struct export_operations cifs_export_ops;
128 #endif /* EXPERIMENTAL */
129
130 #define CIFS_VERSION "1.71"
131 #endif /* _CIFSFS_H */
132