1 /*
2 * Squashfs - a compressed read only filesystem for Linux
3 *
4 * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
5 * Phillip Lougher <phillip@lougher.demon.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2,
10 * or (at your option) any later version.
11 *
12 * This program 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 the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 * squashfs.h
22 */
23
24 #define TRACE(s, args...) pr_debug("SQUASHFS: "s, ## args)
25
26 #define ERROR(s, args...) pr_err("SQUASHFS error: "s, ## args)
27
28 #define WARNING(s, args...) pr_warning("SQUASHFS: "s, ## args)
29
squashfs_i(struct inode * inode)30 static inline struct squashfs_inode_info *squashfs_i(struct inode *inode)
31 {
32 return list_entry(inode, struct squashfs_inode_info, vfs_inode);
33 }
34
35 /* block.c */
36 extern int squashfs_read_data(struct super_block *, void **, u64, int, u64 *,
37 int);
38
39 /* cache.c */
40 extern struct squashfs_cache *squashfs_cache_init(char *, int, int);
41 extern void squashfs_cache_delete(struct squashfs_cache *);
42 extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *,
43 struct squashfs_cache *, u64, int);
44 extern void squashfs_cache_put(struct squashfs_cache_entry *);
45 extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int);
46 extern int squashfs_read_metadata(struct super_block *, void *, u64 *,
47 int *, int);
48 extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *,
49 u64, int);
50 extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *,
51 u64, int);
52 extern int squashfs_read_table(struct super_block *, void *, u64, int);
53
54 /* export.c */
55 extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64,
56 unsigned int);
57
58 /* fragment.c */
59 extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *);
60 extern __le64 *squashfs_read_fragment_index_table(struct super_block *,
61 u64, unsigned int);
62
63 /* id.c */
64 extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
65 extern __le64 *squashfs_read_id_index_table(struct super_block *, u64,
66 unsigned short);
67
68 /* inode.c */
69 extern struct inode *squashfs_iget(struct super_block *, long long,
70 unsigned int);
71 extern int squashfs_read_inode(struct inode *, long long);
72
73 /*
74 * Inodes and files operations
75 */
76
77 /* dir.c */
78 extern const struct file_operations squashfs_dir_ops;
79
80 /* export.c */
81 extern const struct export_operations squashfs_export_ops;
82
83 /* file.c */
84 extern const struct address_space_operations squashfs_aops;
85
86 /* namei.c */
87 extern const struct inode_operations squashfs_dir_inode_ops;
88
89 /* symlink.c */
90 extern const struct address_space_operations squashfs_symlink_aops;
91