1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
#ifndef MKSQUASHFS_H
#define MKSQUASHFS_H
/*
* Squashfs
*
* Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
* 2012, 2013, 2014
* Phillip Lougher <phillip@squashfs.org.uk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2,
* or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* mksquashfs.h
*
*/
/* ANDROID CHANGES START*/
#ifdef ANDROID
#include <stdint.h>
#endif
/* ANDROID CHANGES END */
#include <pthread.h>
struct dir_info {
char *pathname;
char *subpath;
unsigned int count;
unsigned int directory_count;
int depth;
unsigned int excluded;
char dir_is_ldir;
struct dir_ent *dir_ent;
struct dir_ent *list;
DIR *linuxdir;
};
struct dir_ent {
char *name;
char *source_name;
char *nonstandard_pathname;
struct inode_info *inode;
struct dir_info *dir;
struct dir_info *our_dir;
struct dir_ent *next;
/* ANDROID CHANGES START*/
#ifdef ANDROID
uint64_t capabilities;
#endif
/* ANDROID CHANGES END */
};
struct inode_info {
struct stat buf;
struct inode_info *next;
squashfs_inode inode;
unsigned int inode_number;
unsigned int nlink;
int pseudo_id;
char type;
char read;
char root_entry;
char pseudo_file;
char no_fragments;
char always_use_fragments;
char noD;
char noF;
char symlink[0];
};
/* in memory file info */
struct file_info {
long long file_size;
long long bytes;
long long start;
unsigned int *block_list;
struct file_info *next;
struct fragment *fragment;
unsigned short checksum;
unsigned short fragment_checksum;
char have_frag_checksum;
char have_checksum;
};
/* fragment block data structures */
struct fragment {
unsigned int index;
int offset;
int size;
};
/* in memory uid tables */
#define ID_ENTRIES 256
#define ID_HASH(id) (id & (ID_ENTRIES - 1))
#define ISA_UID 1
#define ISA_GID 2
struct id {
unsigned int id;
int index;
char flags;
struct id *next;
};
/* fragment to file mapping used when appending */
struct append_file {
struct file_info *file;
struct append_file *next;
};
#define PSEUDO_FILE_OTHER 1
#define PSEUDO_FILE_PROCESS 2
#define IS_PSEUDO(a) ((a)->pseudo_file)
#define IS_PSEUDO_PROCESS(a) ((a)->pseudo_file & PSEUDO_FILE_PROCESS)
#define IS_PSEUDO_OTHER(a) ((a)->pseudo_file & PSEUDO_FILE_OTHER)
/*
* Amount of physical memory to use by default, and the default queue
* ratios
*/
#define SQUASHFS_TAKE 4
#define SQUASHFS_READQ_MEM 4
#define SQUASHFS_BWRITEQ_MEM 4
#define SQUASHFS_FWRITEQ_MEM 4
/*
* Lowest amount of physical memory considered viable for Mksquashfs
* to run in Mbytes
*/
#define SQUASHFS_LOWMEM 64
/* offset of data in compressed metadata blocks (allowing room for
* compressed size */
#define BLOCK_OFFSET 2
extern struct cache *reader_buffer, *fragment_buffer, *reserve_cache;
struct cache *bwriter_buffer, *fwriter_buffer;
extern struct queue *to_reader, *to_deflate, *to_writer, *from_writer,
*to_frag, *locked_fragment, *to_process_frag;
extern struct append_file **file_mapping;
extern struct seq_queue *to_main;
extern pthread_mutex_t fragment_mutex, dup_mutex;
extern struct squashfs_fragment_entry *fragment_table;
extern struct compressor *comp;
extern int block_size;
extern struct file_info *dupl[];
extern int read_fs_bytes(int, long long, int, void *);
extern void add_file(long long, long long, long long, unsigned int *, int,
unsigned int, int, int);
extern struct id *create_id(unsigned int);
extern unsigned int get_uid(unsigned int, int);
extern unsigned int get_guid(unsigned int, int);
extern int read_bytes(int, void *, int);
extern unsigned short get_checksum_mem(char *, int);
#endif
|
