[linux-block.git] / fs / affs / amigaffs.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef AMIGAFFS_H
#define AMIGAFFS_H

#include <linux/types.h>
#include <asm/byteorder.h>

#define FS_OFS		0x444F5300
#define FS_FFS		0x444F5301
#define FS_INTLOFS	0x444F5302
#define FS_INTLFFS	0x444F5303
#define FS_DCOFS	0x444F5304
#define FS_DCFFS	0x444F5305
#define MUFS_FS		0x6d754653   /* 'muFS' */
#define MUFS_OFS	0x6d754600   /* 'muF\0' */
#define MUFS_FFS	0x6d754601   /* 'muF\1' */
#define MUFS_INTLOFS	0x6d754602   /* 'muF\2' */
#define MUFS_INTLFFS	0x6d754603   /* 'muF\3' */
#define MUFS_DCOFS	0x6d754604   /* 'muF\4' */
#define MUFS_DCFFS	0x6d754605   /* 'muF\5' */

#define T_SHORT		2
#define T_LIST		16
#define T_DATA		8

#define ST_LINKFILE	-4
#define ST_FILE		-3
#define ST_ROOT		1
#define ST_USERDIR	2
#define ST_SOFTLINK	3
#define ST_LINKDIR	4

#define AFFS_ROOT_BMAPS		25

/* Seconds since Amiga epoch of 1978/01/01 to UNIX */
#define AFFS_EPOCH_DELTA ((8 * 365 + 2) * 86400LL)

struct affs_date {
	__be32 days;
	__be32 mins;
	__be32 ticks;
};

struct affs_short_date {
	__be16 days;
	__be16 mins;
	__be16 ticks;
};

struct affs_root_head {
	__be32 ptype;
	/* The following fields are not used, but kept as documentation. */
	__be32 spare1;
	__be32 spare2;
	__be32 hash_size;
	__be32 spare3;
	__be32 checksum;
	__be32 hashtable[];
};

struct affs_root_tail {
	__be32 bm_flag;
	__be32 bm_blk[AFFS_ROOT_BMAPS];
	__be32 bm_ext;
	struct affs_date root_change;
	u8 disk_name[32];
	__be32 spare1;
	__be32 spare2;
	struct affs_date disk_change;
	struct affs_date disk_create;
	__be32 spare3;
	__be32 spare4;
	__be32 dcache;
	__be32 stype;
};

struct affs_head {
	__be32 ptype;
	__be32 key;
	__be32 block_count;
	__be32 spare1;
	__be32 first_data;
	__be32 checksum;
	__be32 table[];
};

struct affs_tail {
	__be32 spare1;
	__be16 uid;
	__be16 gid;
	__be32 protect;
	__be32 size;
	u8 comment[92];
	struct affs_date change;
	u8 name[32];
	__be32 spare2;
	__be32 original;
	__be32 link_chain;
	__be32 spare[5];
	__be32 hash_chain;
	__be32 parent;
	__be32 extension;
	__be32 stype;
};

struct slink_front
{
	__be32 ptype;
	__be32 key;
	__be32 spare1[3];
	__be32 checksum;
	u8 symname[];	/* depends on block size */
};

struct affs_data_head
{
	__be32 ptype;
	__be32 key;
	__be32 sequence;
	__be32 size;
	__be32 next;
	__be32 checksum;
	u8 data[];	/* depends on block size */
};

/* Permission bits */

#define FIBF_OTR_READ		0x8000
#define FIBF_OTR_WRITE		0x4000
#define FIBF_OTR_EXECUTE	0x2000
#define FIBF_OTR_DELETE		0x1000
#define FIBF_GRP_READ		0x0800
#define FIBF_GRP_WRITE		0x0400
#define FIBF_GRP_EXECUTE	0x0200
#define FIBF_GRP_DELETE		0x0100

#define FIBF_HIDDEN		0x0080
#define FIBF_SCRIPT		0x0040
#define FIBF_PURE		0x0020		/* no use under linux */
#define FIBF_ARCHIVED		0x0010		/* never set, always cleared on write */
#define FIBF_NOREAD		0x0008		/* 0 means allowed */
#define FIBF_NOWRITE		0x0004		/* 0 means allowed */
#define FIBF_NOEXECUTE		0x0002		/* 0 means allowed, ignored under linux */
#define FIBF_NODELETE		0x0001		/* 0 means allowed */

#define FIBF_OWNER		0x000F		/* Bits pertaining to owner */
#define FIBF_MASK		0xEE0E		/* Bits modified by Linux */

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef AMIGAFFS_H
	3	#define AMIGAFFS_H
	4
	5	#include <linux/types.h>
	6	#include <asm/byteorder.h>
	7
	8	#define FS_OFS 0x444F5300
	9	#define FS_FFS 0x444F5301
	10	#define FS_INTLOFS 0x444F5302
	11	#define FS_INTLFFS 0x444F5303
	12	#define FS_DCOFS 0x444F5304
	13	#define FS_DCFFS 0x444F5305
	14	#define MUFS_FS 0x6d754653 /* 'muFS' */
	15	#define MUFS_OFS 0x6d754600 /* 'muF\0' */
	16	#define MUFS_FFS 0x6d754601 /* 'muF\1' */
	17	#define MUFS_INTLOFS 0x6d754602 /* 'muF\2' */
	18	#define MUFS_INTLFFS 0x6d754603 /* 'muF\3' */
	19	#define MUFS_DCOFS 0x6d754604 /* 'muF\4' */
	20	#define MUFS_DCFFS 0x6d754605 /* 'muF\5' */
	21
	22	#define T_SHORT 2
	23	#define T_LIST 16
	24	#define T_DATA 8
	25
	26	#define ST_LINKFILE -4
	27	#define ST_FILE -3
	28	#define ST_ROOT 1
	29	#define ST_USERDIR 2
	30	#define ST_SOFTLINK 3
	31	#define ST_LINKDIR 4
	32
	33	#define AFFS_ROOT_BMAPS 25
	34
487b25bc DD	35	/* Seconds since Amiga epoch of 1978/01/01 to UNIX */
	36	#define AFFS_EPOCH_DELTA ((8 * 365 + 2) * 86400LL)
	37
1da177e4 LT	38	struct affs_date {
	39	__be32 days;
	40	__be32 mins;
	41	__be32 ticks;
	42	};
	43
	44	struct affs_short_date {
	45	__be16 days;
	46	__be16 mins;
	47	__be16 ticks;
	48	};
	49
	50	struct affs_root_head {
	51	__be32 ptype;
bf751ad0	52	/* The following fields are not used, but kept as documentation. */
1da177e4 LT	53	__be32 spare1;
	54	__be32 spare2;
	55	__be32 hash_size;
	56	__be32 spare3;
	57	__be32 checksum;
bf751ad0	58	__be32 hashtable[];
1da177e4 LT	59	};
	60
	61	struct affs_root_tail {
	62	__be32 bm_flag;
	63	__be32 bm_blk[AFFS_ROOT_BMAPS];
	64	__be32 bm_ext;
	65	struct affs_date root_change;
	66	u8 disk_name[32];
	67	__be32 spare1;
	68	__be32 spare2;
	69	struct affs_date disk_change;
	70	struct affs_date disk_create;
	71	__be32 spare3;
	72	__be32 spare4;
	73	__be32 dcache;
	74	__be32 stype;
	75	};
	76
	77	struct affs_head {
	78	__be32 ptype;
	79	__be32 key;
	80	__be32 block_count;
	81	__be32 spare1;
	82	__be32 first_data;
	83	__be32 checksum;
38a381a0	84	__be32 table[];
1da177e4 LT	85	};
	86
	87	struct affs_tail {
	88	__be32 spare1;
	89	__be16 uid;
	90	__be16 gid;
	91	__be32 protect;
	92	__be32 size;
	93	u8 comment[92];
	94	struct affs_date change;
	95	u8 name[32];
	96	__be32 spare2;
	97	__be32 original;
	98	__be32 link_chain;
	99	__be32 spare[5];
	100	__be32 hash_chain;
	101	__be32 parent;
	102	__be32 extension;
	103	__be32 stype;
	104	};
	105
	106	struct slink_front
	107	{
	108	__be32 ptype;
	109	__be32 key;
	110	__be32 spare1[3];
	111	__be32 checksum;
0aef1d41	112	u8 symname[]; /* depends on block size */
1da177e4 LT	113	};
	114
	115	struct affs_data_head
	116	{
	117	__be32 ptype;
	118	__be32 key;
	119	__be32 sequence;
	120	__be32 size;
	121	__be32 next;
	122	__be32 checksum;
e5f5ee82	123	u8 data[]; /* depends on block size */
1da177e4 LT	124	};
	125
	126	/* Permission bits */
	127
	128	#define FIBF_OTR_READ 0x8000
	129	#define FIBF_OTR_WRITE 0x4000
	130	#define FIBF_OTR_EXECUTE 0x2000
	131	#define FIBF_OTR_DELETE 0x1000
	132	#define FIBF_GRP_READ 0x0800
	133	#define FIBF_GRP_WRITE 0x0400
	134	#define FIBF_GRP_EXECUTE 0x0200
	135	#define FIBF_GRP_DELETE 0x0100
	136
	137	#define FIBF_HIDDEN 0x0080
	138	#define FIBF_SCRIPT 0x0040
	139	#define FIBF_PURE 0x0020 /* no use under linux */
	140	#define FIBF_ARCHIVED 0x0010 /* never set, always cleared on write */
	141	#define FIBF_NOREAD 0x0008 /* 0 means allowed */
	142	#define FIBF_NOWRITE 0x0004 /* 0 means allowed */
	143	#define FIBF_NOEXECUTE 0x0002 /* 0 means allowed, ignored under linux */
	144	#define FIBF_NODELETE 0x0001 /* 0 means allowed */
	145
	146	#define FIBF_OWNER 0x000F /* Bits pertaining to owner */
	147	#define FIBF_MASK 0xEE0E /* Bits modified by Linux */
	148
	149	#endif