79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/*
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* The minix filesystem constants/structures
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*/
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#ifndef _MINIX_FS_H
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#define _MINIX_FS_H
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#include <sys/types.h>
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#define MINIX_NAME_LEN 14
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#define MINIX_ROOT_INO 1
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#define MINIX_I_MAP_SLOTS 8
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#define MINIX_Z_MAP_SLOTS 8
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#define MINIX_SUPER_MAGIC 0x137F
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#define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))
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#define MINIX_DIR_ENTRIES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_dir_entry)))
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struct minix_inode {
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unsigned short i_mode;
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unsigned short i_uid;
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unsigned long i_size;
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unsigned long i_time;
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unsigned char i_gid;
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unsigned char i_nlinks;
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unsigned short i_zone[9];
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};
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struct minix_super_block {
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unsigned short s_ninodes;
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unsigned short s_nzones;
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unsigned short s_imap_blocks;
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unsigned short s_zmap_blocks;
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unsigned short s_firstdatazone;
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unsigned short s_log_zone_size;
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unsigned long s_max_size;
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unsigned short s_magic;
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};
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struct minix_dir_entry {
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unsigned short inode;
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char name[MINIX_NAME_LEN];
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};
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extern int minix_open(struct inode * inode, struct file * filp);
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extern void minix_release(struct inode * inode, struct file * filp);
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extern struct inode * minix_follow_link(struct inode * dir, struct inode * inode);
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extern int minix_lookup(struct inode * dir,const char * name, int len,
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struct inode ** result);
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extern int minix_create(struct inode * dir,const char * name, int len, int mode,
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struct inode ** result);
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extern int minix_mkdir(struct inode * dir, const char * name, int len, int mode);
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extern int minix_rmdir(struct inode * dir, const char * name, int len);
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extern int minix_unlink(struct inode * dir, const char * name, int len);
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extern int minix_symlink(struct inode * inode, const char * name, int len,
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const char * symname);
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extern int minix_link(struct inode * oldinode, struct inode * dir, const char * name, int len);
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extern int minix_mknod(struct inode * dir, const char * name, int len, int mode, int rdev);
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extern int minix_rename(struct inode * old_dir, const char * old_name, int old_len,
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struct inode * new_dir, const char * new_name, int new_len);
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extern int minix_readlink(struct inode * inode, char * buffer, int buflen);
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extern struct inode * minix_new_inode(int dev);
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extern void minix_free_inode(struct inode * inode);
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extern int minix_new_block(int dev);
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extern int minix_free_block(int dev, int block);
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extern int minix_create_block(struct inode * inode, int block);
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extern int minix_bmap(struct inode * inode,int block);
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extern int minix_lseek(struct inode * inode, struct file * filp, off_t offset, int origin);
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extern int minix_read(struct inode * inode, struct file * filp, char * buf, int count);
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extern int minix_write(struct inode * inode, struct file * filp, char * buf, int count);
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extern struct inode_operations minix_inode_operations;
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extern struct file_operations minix_file_operations;
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#endif
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