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/* 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
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