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https://github.com/brain-hackers/linux-brain.git
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487b25bc4b
Fill in the appropriate limits to avoid inconsistencies in the vfs cached inode times when timestamps are outside the permitted range. Also fix timestamp calculation to avoid overflow while converting from days to seconds. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: David Sterba <dsterba@suse.com> Acked-by: Jeff Layton <jlayton@kernel.org> Cc: dsterba@suse.com
149 lines
3.0 KiB
C
149 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef AMIGAFFS_H
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#define AMIGAFFS_H
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#include <linux/types.h>
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#include <asm/byteorder.h>
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#define FS_OFS 0x444F5300
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#define FS_FFS 0x444F5301
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#define FS_INTLOFS 0x444F5302
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#define FS_INTLFFS 0x444F5303
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#define FS_DCOFS 0x444F5304
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#define FS_DCFFS 0x444F5305
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#define MUFS_FS 0x6d754653 /* 'muFS' */
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#define MUFS_OFS 0x6d754600 /* 'muF\0' */
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#define MUFS_FFS 0x6d754601 /* 'muF\1' */
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#define MUFS_INTLOFS 0x6d754602 /* 'muF\2' */
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#define MUFS_INTLFFS 0x6d754603 /* 'muF\3' */
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#define MUFS_DCOFS 0x6d754604 /* 'muF\4' */
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#define MUFS_DCFFS 0x6d754605 /* 'muF\5' */
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#define T_SHORT 2
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#define T_LIST 16
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#define T_DATA 8
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#define ST_LINKFILE -4
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#define ST_FILE -3
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#define ST_ROOT 1
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#define ST_USERDIR 2
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#define ST_SOFTLINK 3
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#define ST_LINKDIR 4
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#define AFFS_ROOT_BMAPS 25
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/* Seconds since Amiga epoch of 1978/01/01 to UNIX */
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#define AFFS_EPOCH_DELTA ((8 * 365 + 2) * 86400LL)
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struct affs_date {
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__be32 days;
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__be32 mins;
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__be32 ticks;
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};
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struct affs_short_date {
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__be16 days;
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__be16 mins;
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__be16 ticks;
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};
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struct affs_root_head {
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__be32 ptype;
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__be32 spare1;
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__be32 spare2;
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__be32 hash_size;
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__be32 spare3;
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__be32 checksum;
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__be32 hashtable[1];
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};
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struct affs_root_tail {
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__be32 bm_flag;
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__be32 bm_blk[AFFS_ROOT_BMAPS];
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__be32 bm_ext;
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struct affs_date root_change;
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u8 disk_name[32];
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__be32 spare1;
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__be32 spare2;
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struct affs_date disk_change;
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struct affs_date disk_create;
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__be32 spare3;
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__be32 spare4;
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__be32 dcache;
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__be32 stype;
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};
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struct affs_head {
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__be32 ptype;
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__be32 key;
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__be32 block_count;
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__be32 spare1;
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__be32 first_data;
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__be32 checksum;
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__be32 table[1];
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};
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struct affs_tail {
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__be32 spare1;
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__be16 uid;
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__be16 gid;
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__be32 protect;
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__be32 size;
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u8 comment[92];
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struct affs_date change;
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u8 name[32];
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__be32 spare2;
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__be32 original;
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__be32 link_chain;
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__be32 spare[5];
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__be32 hash_chain;
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__be32 parent;
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__be32 extension;
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__be32 stype;
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};
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struct slink_front
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{
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__be32 ptype;
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__be32 key;
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__be32 spare1[3];
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__be32 checksum;
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u8 symname[1]; /* depends on block size */
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};
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struct affs_data_head
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{
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__be32 ptype;
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__be32 key;
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__be32 sequence;
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__be32 size;
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__be32 next;
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__be32 checksum;
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u8 data[1]; /* depends on block size */
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};
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/* Permission bits */
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#define FIBF_OTR_READ 0x8000
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#define FIBF_OTR_WRITE 0x4000
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#define FIBF_OTR_EXECUTE 0x2000
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#define FIBF_OTR_DELETE 0x1000
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#define FIBF_GRP_READ 0x0800
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#define FIBF_GRP_WRITE 0x0400
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#define FIBF_GRP_EXECUTE 0x0200
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#define FIBF_GRP_DELETE 0x0100
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#define FIBF_HIDDEN 0x0080
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#define FIBF_SCRIPT 0x0040
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#define FIBF_PURE 0x0020 /* no use under linux */
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#define FIBF_ARCHIVED 0x0010 /* never set, always cleared on write */
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#define FIBF_NOREAD 0x0008 /* 0 means allowed */
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#define FIBF_NOWRITE 0x0004 /* 0 means allowed */
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#define FIBF_NOEXECUTE 0x0002 /* 0 means allowed, ignored under linux */
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#define FIBF_NODELETE 0x0001 /* 0 means allowed */
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#define FIBF_OWNER 0x000F /* Bits pertaining to owner */
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#define FIBF_MASK 0xEE0E /* Bits modified by Linux */
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#endif
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