1 #ifndef _MINIX_FS_H
2 #define _MINIX_FS_H
3
4
5
6
7
8 #define MINIX_NAME_LEN 14
9 #define MINIX_ROOT_INO 1
10
11 #define MINIX_I_MAP_SLOTS 8
12 #define MINIX_Z_MAP_SLOTS 8
13 #define MINIX_SUPER_MAGIC 0x137F
14
15 #define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))
16 #define MINIX_DIR_ENTRIES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_dir_entry)))
17
18 struct minix_inode {
19 unsigned short i_mode;
20 unsigned short i_uid;
21 unsigned long i_size;
22 unsigned long i_time;
23 unsigned char i_gid;
24 unsigned char i_nlinks;
25 unsigned short i_zone[9];
26 };
27
28
29
30
31 struct minix_super_block {
32 unsigned short s_ninodes;
33 unsigned short s_nzones;
34 unsigned short s_imap_blocks;
35 unsigned short s_zmap_blocks;
36 unsigned short s_firstdatazone;
37 unsigned short s_log_zone_size;
38 unsigned long s_max_size;
39 unsigned short s_magic;
40 };
41
42 struct minix_dir_entry {
43 unsigned short inode;
44 char name[MINIX_NAME_LEN];
45 };
46
47 extern int minix_open(struct inode * inode, struct file * filp);
48 extern void minix_release(struct inode * inode, struct file * filp);
49 extern int minix_lookup(struct inode * dir,const char * name, int len,
50 struct inode ** result);
51 extern int minix_create(struct inode * dir,const char * name, int len, int mode,
52 struct inode ** result);
53 extern int minix_mkdir(struct inode * dir, const char * name, int len, int mode);
54 extern int minix_rmdir(struct inode * dir, const char * name, int len);
55 extern int minix_unlink(struct inode * dir, const char * name, int len);
56 extern int minix_symlink(struct inode * inode, const char * name, int len,
57 const char * symname);
58 extern int minix_link(struct inode * oldinode, struct inode * dir, const char * name, int len);
59 extern int minix_mknod(struct inode * dir, const char * name, int len, int mode, int rdev);
60 extern int minix_rename(struct inode * old_dir, const char * old_name, int old_len,
61 struct inode * new_dir, const char * new_name, int new_len);
62 extern struct inode * minix_new_inode(int dev);
63 extern void minix_free_inode(struct inode * inode);
64 extern unsigned long minix_count_free_inodes(struct super_block *sb);
65 extern int minix_new_block(int dev);
66 extern int minix_free_block(int dev, int block);
67 extern unsigned long minix_count_free_blocks(struct super_block *sb);
68
69 extern int minix_create_block(struct inode *, int);
70 extern int minix_bmap(struct inode *,int);
71
72 extern void minix_truncate(struct inode *);
73 extern void minix_put_super(struct super_block *);
74 extern struct super_block *minix_read_super(struct super_block *,void *);
75 extern void minix_read_inode(struct inode *);
76 extern void minix_write_inode(struct inode *);
77 extern void minix_put_inode(struct inode *);
78 extern void minix_statfs(struct super_block *, struct statfs *);
79
80 extern int minix_lseek(struct inode *, struct file *, off_t, int);
81 extern int minix_read(struct inode *, struct file *, char *, int);
82 extern int minix_write(struct inode *, struct file *, char *, int);
83 extern int minix_file_read(struct inode *, struct file *, char *, int);
84
85 extern struct inode_operations minix_file_inode_operations;
86 extern struct inode_operations minix_dir_inode_operations;
87 extern struct inode_operations minix_symlink_inode_operations;
88 extern struct inode_operations minix_chrdev_inode_operations;
89 extern struct inode_operations minix_blkdev_inode_operations;
90 extern struct inode_operations minix_fifo_inode_operations;
91
92 extern struct file_operations minix_file_operations;
93 extern struct file_operations minix_dir_operations;
94
95 #endif