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4
5 #ifndef _MINIX_FS_H
6 #define _MINIX_FS_H
7
8 #include <sys/types.h>
9
10 #define MINIX_NAME_LEN 14
11 #define MINIX_ROOT_INO 1
12
13 #define MINIX_I_MAP_SLOTS 8
14 #define MINIX_Z_MAP_SLOTS 8
15 #define MINIX_SUPER_MAGIC 0x137F
16
17 #define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))
18 #define MINIX_DIR_ENTRIES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_dir_entry)))
19
20 struct minix_inode {
21 unsigned short i_mode;
22 unsigned short i_uid;
23 unsigned long i_size;
24 unsigned long i_time;
25 unsigned char i_gid;
26 unsigned char i_nlinks;
27 unsigned short i_zone[9];
28 };
29
30 struct minix_super_block {
31 unsigned short s_ninodes;
32 unsigned short s_nzones;
33 unsigned short s_imap_blocks;
34 unsigned short s_zmap_blocks;
35 unsigned short s_firstdatazone;
36 unsigned short s_log_zone_size;
37 unsigned long s_max_size;
38 unsigned short s_magic;
39 };
40
41 struct minix_dir_entry {
42 unsigned short inode;
43 char name[MINIX_NAME_LEN];
44 };
45
46 extern int minix_open(struct inode * inode, struct file * filp);
47 extern void minix_release(struct inode * inode, struct file * filp);
48 extern struct inode * minix_follow_link(struct inode * dir, struct inode * inode);
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 int minix_readlink(struct inode * inode, char * buffer, int buflen);
63 extern struct inode * minix_new_inode(int dev);
64 extern void minix_free_inode(struct inode * inode);
65 extern int minix_new_block(int dev);
66 extern int minix_free_block(int dev, int block);
67
68 extern int minix_create_block(struct inode * inode, int block);
69 extern int minix_bmap(struct inode * inode,int block);
70
71 extern int minix_lseek(struct inode * inode, struct file * filp, off_t offset, int origin);
72 extern int minix_read(struct inode * inode, struct file * filp, char * buf, int count);
73 extern int minix_write(struct inode * inode, struct file * filp, char * buf, int count);
74
75 extern struct inode_operations minix_inode_operations;
76 extern struct file_operations minix_file_operations;
77
78 #endif