Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Squashfs - a compressed read only filesystem for Linux |
| 3 | * |
| 4 | * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
Phillip Lougher | d7f2ff6 | 2011-05-26 10:39:56 +0100 | [diff] [blame] | 5 | * Phillip Lougher <phillip@squashfs.org.uk> |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 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 | |
Fabian Frederick | 2201083 | 2014-06-04 16:05:52 -0700 | [diff] [blame] | 28 | #define WARNING(s, args...) pr_warn("SQUASHFS: "s, ## args) |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 29 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 30 | /* block.c */ |
Adrien Schildknecht | 6c8928f | 2016-10-17 18:22:32 -0700 | [diff] [blame] | 31 | extern int squashfs_init_read_wq(void); |
| 32 | extern void squashfs_destroy_read_wq(void); |
Phillip Lougher | 846b730 | 2013-11-18 02:59:12 +0000 | [diff] [blame] | 33 | extern int squashfs_read_data(struct super_block *, u64, int, u64 *, |
| 34 | struct squashfs_page_actor *); |
Adrien Schildknecht | 6c8928f | 2016-10-17 18:22:32 -0700 | [diff] [blame] | 35 | extern int squashfs_read_data_async(struct super_block *, u64, int, u64 *, |
| 36 | struct squashfs_page_actor *); |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 37 | |
| 38 | /* cache.c */ |
| 39 | extern struct squashfs_cache *squashfs_cache_init(char *, int, int); |
| 40 | extern void squashfs_cache_delete(struct squashfs_cache *); |
| 41 | extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *, |
| 42 | struct squashfs_cache *, u64, int); |
| 43 | extern void squashfs_cache_put(struct squashfs_cache_entry *); |
| 44 | extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int); |
| 45 | extern int squashfs_read_metadata(struct super_block *, void *, u64 *, |
| 46 | int *, int); |
| 47 | extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *, |
| 48 | u64, int); |
| 49 | extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *, |
| 50 | u64, int); |
Phillip Lougher | 82de647 | 2011-05-20 02:26:43 +0100 | [diff] [blame] | 51 | extern void *squashfs_read_table(struct super_block *, u64, int); |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 52 | |
Phillip Lougher | 4c0f0bb | 2009-10-06 04:04:15 +0100 | [diff] [blame] | 53 | /* decompressor.c */ |
| 54 | extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int); |
Phillip Lougher | 9508c6b | 2013-11-13 02:56:26 +0000 | [diff] [blame] | 55 | extern void *squashfs_decompressor_setup(struct super_block *, unsigned short); |
| 56 | |
| 57 | /* decompressor_xxx.c */ |
| 58 | extern void *squashfs_decompressor_create(struct squashfs_sb_info *, void *); |
| 59 | extern void squashfs_decompressor_destroy(struct squashfs_sb_info *); |
Phillip Lougher | 846b730 | 2013-11-18 02:59:12 +0000 | [diff] [blame] | 60 | extern int squashfs_decompress(struct squashfs_sb_info *, struct buffer_head **, |
| 61 | int, int, int, struct squashfs_page_actor *); |
Phillip Lougher | 9508c6b | 2013-11-13 02:56:26 +0000 | [diff] [blame] | 62 | extern int squashfs_max_decompressors(void); |
Phillip Lougher | 4c0f0bb | 2009-10-06 04:04:15 +0100 | [diff] [blame] | 63 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 64 | /* export.c */ |
Phillip Lougher | ac51a0a | 2011-05-24 04:15:21 +0100 | [diff] [blame] | 65 | extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64, u64, |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 66 | unsigned int); |
| 67 | |
| 68 | /* fragment.c */ |
| 69 | extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *); |
| 70 | extern __le64 *squashfs_read_fragment_index_table(struct super_block *, |
Phillip Lougher | 1cac63c | 2011-05-24 04:33:34 +0100 | [diff] [blame] | 71 | u64, u64, unsigned int); |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 72 | |
Phillip Lougher | 5f55dbc | 2013-10-31 19:24:27 +0000 | [diff] [blame] | 73 | /* file.c */ |
| 74 | void squashfs_copy_cache(struct page *, struct squashfs_cache_entry *, int, |
| 75 | int); |
| 76 | |
Adrien Schildknecht | d840c1d | 2016-10-14 21:03:54 -0700 | [diff] [blame] | 77 | /* file_direct.c */ |
| 78 | extern int squashfs_readpages_block(struct page *, struct list_head *, |
| 79 | unsigned int *, struct address_space *, int, u64, int); |
Phillip Lougher | 5f55dbc | 2013-10-31 19:24:27 +0000 | [diff] [blame] | 80 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 81 | /* id.c */ |
| 82 | extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *); |
Phillip Lougher | 37986f6 | 2011-05-24 04:05:22 +0100 | [diff] [blame] | 83 | extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, u64, |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 84 | unsigned short); |
| 85 | |
| 86 | /* inode.c */ |
| 87 | extern struct inode *squashfs_iget(struct super_block *, long long, |
| 88 | unsigned int); |
| 89 | extern int squashfs_read_inode(struct inode *, long long); |
| 90 | |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 91 | /* xattr.c */ |
| 92 | extern ssize_t squashfs_listxattr(struct dentry *, char *, size_t); |
| 93 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 94 | /* |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 95 | * Inodes, files, decompressor and xattr operations |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 96 | */ |
| 97 | |
| 98 | /* dir.c */ |
| 99 | extern const struct file_operations squashfs_dir_ops; |
| 100 | |
| 101 | /* export.c */ |
| 102 | extern const struct export_operations squashfs_export_ops; |
| 103 | |
| 104 | /* file.c */ |
| 105 | extern const struct address_space_operations squashfs_aops; |
| 106 | |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 107 | /* inode.c */ |
| 108 | extern const struct inode_operations squashfs_inode_ops; |
| 109 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 110 | /* namei.c */ |
| 111 | extern const struct inode_operations squashfs_dir_inode_ops; |
| 112 | |
| 113 | /* symlink.c */ |
| 114 | extern const struct address_space_operations squashfs_symlink_aops; |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 115 | extern const struct inode_operations squashfs_symlink_inode_ops; |
| 116 | |
| 117 | /* xattr.c */ |
Phillip Lougher | f6db25a | 2010-05-23 03:29:26 +0100 | [diff] [blame] | 118 | extern const struct xattr_handler *squashfs_xattr_handlers[]; |