usr/src/sys/ufs/ffs/dinode.h

/*
 * Copyright (c) 1982, 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)dinode.h	7.10 (Berkeley) %G%
 */

/*
 * A dinode contains all the meta-data associated with a UFS file.
 * This structure defines the on-disk format of a dinode.
 */

#define	NDADDR	12		/* direct addresses in inode */
#define	NIADDR	3		/* indirect addresses in inode */

struct dinode {
	u_short	di_mode;	/*  0: mode and type of file */
	short	di_nlink;	/*  2: number of links to file */
	uid_t	di_uid;		/*  4: owner's user id */
	gid_t	di_gid;		/*  6: owner's group id */
	u_quad	di_qsize;	/*  8: number of bytes in file */
	time_t	di_atime;	/* 16: time last accessed */
	long	di_atspare;
	time_t	di_mtime;	/* 24: time last modified */
	long	di_mtspare;
	time_t	di_ctime;	/* 32: last time inode changed */
	long	di_ctspare;
	daddr_t	di_db[NDADDR];	/* 40: disk block addresses */
	daddr_t	di_ib[NIADDR];	/* 88: indirect blocks */
	long	di_flags;	/* 100: status, currently unused */
	long	di_blocks;	/* 104: blocks actually held */
	long	di_gen;		/* 108: generation number */
	long	di_spare[4];	/* 112: reserved, currently unused */
};

#if BYTE_ORDER == LITTLE_ENDIAN || defined(tahoe) /* ugh! -- must be fixed */
#define	di_size		di_qsize.val[0]
#else /* BYTE_ORDER == BIG_ENDIAN */
#define	di_size		di_qsize.val[1]
#endif
#define	di_rdev		di_db[0]

/* file modes */
#define	IFMT		0170000		/* mask of file type */
#define	IFIFO		0010000		/* named pipe (fifo) */
#define	IFCHR		0020000		/* character special device */
#define	IFDIR		0040000		/* directory */
#define	IFBLK		0060000		/* block special device */
#define	IFREG		0100000		/* regular file */
#define	IFLNK		0120000		/* symbolic link */
#define	IFSOCK		0140000		/* UNIX domain socket */

#define	ISUID		04000		/* set user identifier when exec'ing */
#define	ISGID		02000		/* set group identifier when exec'ing */
#define	ISVTX		01000		/* save execution information on exit */
#define	IREAD		0400		/* read permission */
#define	IWRITE		0200		/* write permission */
#define	IEXEC		0100		/* execute permission */
Commit	Line	Data
	1	/*
	2	* Copyright (c) 1982, 1989 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* %sccs.include.redist.c%
	6	*
	7	* @(#)dinode.h 7.10 (Berkeley) %G%
	8	*/
	9
	10	/*
	11	* A dinode contains all the meta-data associated with a UFS file.
	12	* This structure defines the on-disk format of a dinode.
	13	*/
	14
	15	#define NDADDR 12 /* direct addresses in inode */
	16	#define NIADDR 3 /* indirect addresses in inode */
	17
	18	struct dinode {
	19	u_short di_mode; /* 0: mode and type of file */
	20	short di_nlink; /* 2: number of links to file */
	21	uid_t di_uid; /* 4: owner's user id */
	22	gid_t di_gid; /* 6: owner's group id */
	23	u_quad di_qsize; /* 8: number of bytes in file */
	24	time_t di_atime; /* 16: time last accessed */
	25	long di_atspare;
	26	time_t di_mtime; /* 24: time last modified */
	27	long di_mtspare;
	28	time_t di_ctime; /* 32: last time inode changed */
	29	long di_ctspare;
	30	daddr_t di_db[NDADDR]; /* 40: disk block addresses */
	31	daddr_t di_ib[NIADDR]; /* 88: indirect blocks */
	32	long di_flags; /* 100: status, currently unused */
	33	long di_blocks; /* 104: blocks actually held */
	34	long di_gen; /* 108: generation number */
	35	long di_spare[4]; /* 112: reserved, currently unused */
	36	};
	37
	38	#if BYTE_ORDER == LITTLE_ENDIAN \|\| defined(tahoe) /* ugh! -- must be fixed */
	39	#define di_size di_qsize.val[0]
	40	#else /* BYTE_ORDER == BIG_ENDIAN */
	41	#define di_size di_qsize.val[1]
	42	#endif
	43	#define di_rdev di_db[0]
	44
	45	/* file modes */
	46	#define IFMT 0170000 /* mask of file type */
	47	#define IFIFO 0010000 /* named pipe (fifo) */
	48	#define IFCHR 0020000 /* character special device */
	49	#define IFDIR 0040000 /* directory */
	50	#define IFBLK 0060000 /* block special device */
	51	#define IFREG 0100000 /* regular file */
	52	#define IFLNK 0120000 /* symbolic link */
	53	#define IFSOCK 0140000 /* UNIX domain socket */
	54
	55	#define ISUID 04000 /* set user identifier when exec'ing */
	56	#define ISGID 02000 /* set group identifier when exec'ing */
	57	#define ISVTX 01000 /* save execution information on exit */
	58	#define IREAD 0400 /* read permission */
	59	#define IWRITE 0200 /* write permission */
	60	#define IEXEC 0100 /* execute permission */