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Commit | Line | Data |
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929be906 | 1 | /* SPDX-License-Identifier: LGPL-2.1 */ |
1da177e4 | 2 | /* |
1da177e4 | 3 | * |
297647c2 | 4 | * Copyright (c) International Business Machines Corp., 2002, 2007 |
1da177e4 LT |
5 | * Author(s): Steve French (sfrench@us.ibm.com) |
6 | * | |
1da177e4 LT |
7 | */ |
8 | ||
9 | #ifndef _CIFSFS_H | |
10 | #define _CIFSFS_H | |
11 | ||
02323db1 JL |
12 | #include <linux/hash.h> |
13 | ||
1da177e4 LT |
14 | #define ROOT_I 2 |
15 | ||
cc0bad75 JL |
16 | /* |
17 | * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down | |
02323db1 JL |
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. | |
cc0bad75 | 20 | */ |
02323db1 JL |
21 | static inline ino_t |
22 | cifs_uniqueid_to_ino_t(u64 fileid) | |
23 | { | |
1ee9f4bd YF |
24 | if ((sizeof(ino_t)) < (sizeof(u64))) |
25 | return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1; | |
26 | ||
02323db1 | 27 | return (ino_t)fileid; |
1ee9f4bd | 28 | |
02323db1 | 29 | } |
cc0bad75 | 30 | |
a00be0e3 MS |
31 | static inline void cifs_set_time(struct dentry *dentry, unsigned long time) |
32 | { | |
33 | dentry->d_fsdata = (void *) time; | |
34 | } | |
35 | ||
36 | static inline unsigned long cifs_get_time(struct dentry *dentry) | |
37 | { | |
38 | return (unsigned long) dentry->d_fsdata; | |
39 | } | |
40 | ||
e6ab1582 | 41 | extern struct file_system_type cifs_fs_type; |
f5e54d6e CH |
42 | extern const struct address_space_operations cifs_addr_ops; |
43 | extern const struct address_space_operations cifs_addr_ops_smallbuf; | |
1da177e4 | 44 | |
24261fc2 MG |
45 | /* Functions related to super block operations */ |
46 | extern void cifs_sb_active(struct super_block *sb); | |
47 | extern void cifs_sb_deactive(struct super_block *sb); | |
48 | ||
1da177e4 | 49 | /* Functions related to inodes */ |
754661f1 | 50 | extern const struct inode_operations cifs_dir_inode_ops; |
9b6763e0 | 51 | extern struct inode *cifs_root_iget(struct super_block *); |
549c7297 CB |
52 | extern int cifs_create(struct user_namespace *, struct inode *, |
53 | struct dentry *, umode_t, bool excl); | |
d9585277 | 54 | extern int cifs_atomic_open(struct inode *, struct dentry *, |
44907d79 | 55 | struct file *, unsigned, umode_t); |
50c2f753 | 56 | extern struct dentry *cifs_lookup(struct inode *, struct dentry *, |
00cd8dd3 | 57 | unsigned int); |
5f0319a7 | 58 | extern int cifs_unlink(struct inode *dir, struct dentry *dentry); |
1da177e4 | 59 | extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *); |
549c7297 CB |
60 | extern int cifs_mknod(struct user_namespace *, struct inode *, struct dentry *, |
61 | umode_t, dev_t); | |
62 | extern int cifs_mkdir(struct user_namespace *, struct inode *, struct dentry *, | |
63 | umode_t); | |
1da177e4 | 64 | extern int cifs_rmdir(struct inode *, struct dentry *); |
549c7297 CB |
65 | extern int cifs_rename2(struct user_namespace *, struct inode *, |
66 | struct dentry *, struct inode *, struct dentry *, | |
67 | unsigned int); | |
6feb9891 PS |
68 | extern int cifs_revalidate_file_attr(struct file *filp); |
69 | extern int cifs_revalidate_dentry_attr(struct dentry *); | |
abab095d | 70 | extern int cifs_revalidate_file(struct file *filp); |
df2cf170 | 71 | extern int cifs_revalidate_dentry(struct dentry *); |
6feb9891 | 72 | extern int cifs_invalidate_mapping(struct inode *inode); |
e284e53f | 73 | extern int cifs_revalidate_mapping(struct inode *inode); |
4f73c7d3 | 74 | extern int cifs_zap_mapping(struct inode *inode); |
549c7297 CB |
75 | extern int cifs_getattr(struct user_namespace *, const struct path *, |
76 | struct kstat *, u32, unsigned int); | |
77 | extern int cifs_setattr(struct user_namespace *, struct dentry *, | |
78 | struct iattr *); | |
2f3ebaba RS |
79 | extern int cifs_fiemap(struct inode *, struct fiemap_extent_info *, u64 start, |
80 | u64 len); | |
1da177e4 | 81 | |
754661f1 AV |
82 | extern const struct inode_operations cifs_file_inode_ops; |
83 | extern const struct inode_operations cifs_symlink_inode_ops; | |
6e1d5dcc | 84 | extern const struct inode_operations cifs_dfs_referral_inode_operations; |
6d5ae0de IM |
85 | |
86 | ||
1da177e4 | 87 | /* Functions related to files and directories */ |
4b6f5d20 | 88 | extern const struct file_operations cifs_file_ops; |
d38d8c74 | 89 | extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */ |
8be7e6ba PS |
90 | extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */ |
91 | extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */ | |
92 | extern const struct file_operations cifs_file_direct_nobrl_ops; | |
93 | extern const struct file_operations cifs_file_strict_nobrl_ops; | |
1da177e4 LT |
94 | extern int cifs_open(struct inode *inode, struct file *file); |
95 | extern int cifs_close(struct inode *inode, struct file *file); | |
96 | extern int cifs_closedir(struct inode *inode, struct file *file); | |
e6a7bcb4 | 97 | extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to); |
6e6e2b86 | 98 | extern ssize_t cifs_direct_readv(struct kiocb *iocb, struct iov_iter *to); |
e6a7bcb4 | 99 | extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to); |
3dae8750 | 100 | extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from); |
8c5f9c1a | 101 | extern ssize_t cifs_direct_writev(struct kiocb *iocb, struct iov_iter *from); |
3dae8750 | 102 | extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from); |
d0677992 | 103 | extern int cifs_flock(struct file *pfile, int cmd, struct file_lock *plock); |
1da177e4 | 104 | extern int cifs_lock(struct file *, int, struct file_lock *); |
02c24a82 JB |
105 | extern int cifs_fsync(struct file *, loff_t, loff_t, int); |
106 | extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int); | |
75e1fcc0 | 107 | extern int cifs_flush(struct file *, fl_owner_t id); |
1da177e4 | 108 | extern int cifs_file_mmap(struct file * , struct vm_area_struct *); |
7a6a19b1 | 109 | extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *); |
4b6f5d20 | 110 | extern const struct file_operations cifs_dir_ops; |
1da177e4 | 111 | extern int cifs_dir_open(struct inode *inode, struct file *file); |
be4ccdcc | 112 | extern int cifs_readdir(struct file *file, struct dir_context *ctx); |
1da177e4 LT |
113 | |
114 | /* Functions related to dir entries */ | |
4fd03e84 AV |
115 | extern const struct dentry_operations cifs_dentry_ops; |
116 | extern const struct dentry_operations cifs_ci_dentry_ops; | |
1da177e4 | 117 | |
01c64fea DH |
118 | #ifdef CONFIG_CIFS_DFS_UPCALL |
119 | extern struct vfsmount *cifs_dfs_d_automount(struct path *path); | |
120 | #else | |
121 | #define cifs_dfs_d_automount NULL | |
122 | #endif | |
123 | ||
1da177e4 | 124 | /* Functions related to symlinks */ |
fceef393 AV |
125 | extern const char *cifs_get_link(struct dentry *, struct inode *, |
126 | struct delayed_call *); | |
549c7297 CB |
127 | extern int cifs_symlink(struct user_namespace *mnt_userns, struct inode *inode, |
128 | struct dentry *direntry, const char *symname); | |
a9ae008f AG |
129 | |
130 | #ifdef CONFIG_CIFS_XATTR | |
131 | extern const struct xattr_handler *cifs_xattr_handlers[]; | |
1da177e4 | 132 | extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); |
a9ae008f AG |
133 | #else |
134 | # define cifs_xattr_handlers NULL | |
135 | # define cifs_listxattr NULL | |
136 | #endif | |
137 | ||
620d8745 SP |
138 | extern 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 | ||
f9ddcca4 | 143 | extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); |
8bd0d701 RS |
144 | extern void cifs_setsize(struct inode *inode, loff_t offset); |
145 | extern int cifs_truncate_page(struct address_space *mapping, loff_t from); | |
146 | ||
24e0a1ef RS |
147 | struct smb3_fs_context; |
148 | extern struct dentry *cifs_smb3_do_mount(struct file_system_type *fs_type, | |
149 | int flags, struct smb3_fs_context *ctx); | |
150 | ||
f3a6a60e | 151 | #ifdef CONFIG_CIFS_NFSD_EXPORT |
39655164 | 152 | extern const struct export_operations cifs_export_ops; |
f3a6a60e | 153 | #endif /* CONFIG_CIFS_NFSD_EXPORT */ |
297647c2 | 154 | |
4d069f60 | 155 | #define CIFS_VERSION "2.33" |
1da177e4 | 156 | #endif /* _CIFSFS_H */ |