| /* |
| * Copyright (c) 2000, 2002 Silicon Graphics, Inc. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * Further, this software is distributed without any warranty that it is |
| * free of the rightful claim of any third person regarding infringement |
| * or the like. Any license provided herein, whether implied or |
| * otherwise, applies only to this software file. Patent licenses, if |
| * any, provided herein do not apply to combinations of this program with |
| * other software, or any other product whatsoever. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., 59 |
| * Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| * |
| * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, |
| * Mountain View, CA 94043, or: |
| * |
| * http://www.sgi.com |
| * |
| * For further information regarding this notice, see: |
| * |
| * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ |
| */ |
| #ifndef __XFS_DINODE_H__ |
| #define __XFS_DINODE_H__ |
| |
| struct xfs_buf; |
| struct xfs_mount; |
| |
| #define XFS_DINODE_VERSION_1 1 |
| #define XFS_DINODE_VERSION_2 2 |
| #define XFS_DINODE_GOOD_VERSION(v) \ |
| (((v) == XFS_DINODE_VERSION_1 || (v) == XFS_DINODE_VERSION_2)) |
| #define XFS_DINODE_MAGIC 0x494e /* 'IN' */ |
| |
| /* |
| * Disk inode structure. |
| * This is just the header; the inode is expanded to fill a variable size |
| * with the last field expanding. It is split into the core and "other" |
| * because we only need the core part in the in-core inode. |
| */ |
| typedef struct xfs_timestamp { |
| __int32_t t_sec; /* timestamp seconds */ |
| __int32_t t_nsec; /* timestamp nanoseconds */ |
| } xfs_timestamp_t; |
| |
| /* |
| * Note: Coordinate changes to this structure with the XFS_DI_* #defines |
| * below and the offsets table in xfs_ialloc_log_di(). |
| */ |
| typedef struct xfs_dinode_core |
| { |
| __uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */ |
| __uint16_t di_mode; /* mode and type of file */ |
| __int8_t di_version; /* inode version */ |
| __int8_t di_format; /* format of di_c data */ |
| __uint16_t di_onlink; /* old number of links to file */ |
| __uint32_t di_uid; /* owner's user id */ |
| __uint32_t di_gid; /* owner's group id */ |
| __uint32_t di_nlink; /* number of links to file */ |
| __uint16_t di_projid; /* owner's project id */ |
| __uint8_t di_pad[8]; /* unused, zeroed space */ |
| __uint16_t di_flushiter; /* incremented on flush */ |
| xfs_timestamp_t di_atime; /* time last accessed */ |
| xfs_timestamp_t di_mtime; /* time last modified */ |
| xfs_timestamp_t di_ctime; /* time created/inode modified */ |
| xfs_fsize_t di_size; /* number of bytes in file */ |
| xfs_drfsbno_t di_nblocks; /* # of direct & btree blocks used */ |
| xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ |
| xfs_extnum_t di_nextents; /* number of extents in data fork */ |
| xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/ |
| __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ |
| __int8_t di_aformat; /* format of attr fork's data */ |
| __uint32_t di_dmevmask; /* DMIG event mask */ |
| __uint16_t di_dmstate; /* DMIG state info */ |
| __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ |
| __uint32_t di_gen; /* generation number */ |
| } xfs_dinode_core_t; |
| |
| #define DI_MAX_FLUSH 0xffff |
| |
| typedef struct xfs_dinode |
| { |
| xfs_dinode_core_t di_core; |
| /* |
| * In adding anything between the core and the union, be |
| * sure to update the macros like XFS_LITINO below and |
| * XFS_BMAP_RBLOCK_DSIZE in xfs_bmap_btree.h. |
| */ |
| xfs_agino_t di_next_unlinked;/* agi unlinked list ptr */ |
| union { |
| xfs_bmdr_block_t di_bmbt; /* btree root block */ |
| xfs_bmbt_rec_32_t di_bmx[1]; /* extent list */ |
| xfs_dir_shortform_t di_dirsf; /* shortform directory */ |
| xfs_dir2_sf_t di_dir2sf; /* shortform directory v2 */ |
| char di_c[1]; /* local contents */ |
| xfs_dev_t di_dev; /* device for S_IFCHR/S_IFBLK */ |
| uuid_t di_muuid; /* mount point value */ |
| char di_symlink[1]; /* local symbolic link */ |
| } di_u; |
| union { |
| xfs_bmdr_block_t di_abmbt; /* btree root block */ |
| xfs_bmbt_rec_32_t di_abmx[1]; /* extent list */ |
| xfs_attr_shortform_t di_attrsf; /* shortform attribute list */ |
| } di_a; |
| } xfs_dinode_t; |
| |
| /* |
| * The 32 bit link count in the inode theoretically maxes out at UINT_MAX. |
| * Since the pathconf interface is signed, we use 2^31 - 1 instead. |
| * The old inode format had a 16 bit link count, so its maximum is USHRT_MAX. |
| */ |
| #define XFS_MAXLINK ((1U << 31) - 1U) |
| #define XFS_MAXLINK_1 65535U |
| |
| /* |
| * Bit names for logging disk inodes only |
| */ |
| #define XFS_DI_MAGIC 0x0000001 |
| #define XFS_DI_MODE 0x0000002 |
| #define XFS_DI_VERSION 0x0000004 |
| #define XFS_DI_FORMAT 0x0000008 |
| #define XFS_DI_ONLINK 0x0000010 |
| #define XFS_DI_UID 0x0000020 |
| #define XFS_DI_GID 0x0000040 |
| #define XFS_DI_NLINK 0x0000080 |
| #define XFS_DI_PROJID 0x0000100 |
| #define XFS_DI_PAD 0x0000200 |
| #define XFS_DI_ATIME 0x0000400 |
| #define XFS_DI_MTIME 0x0000800 |
| #define XFS_DI_CTIME 0x0001000 |
| #define XFS_DI_SIZE 0x0002000 |
| #define XFS_DI_NBLOCKS 0x0004000 |
| #define XFS_DI_EXTSIZE 0x0008000 |
| #define XFS_DI_NEXTENTS 0x0010000 |
| #define XFS_DI_NAEXTENTS 0x0020000 |
| #define XFS_DI_FORKOFF 0x0040000 |
| #define XFS_DI_AFORMAT 0x0080000 |
| #define XFS_DI_DMEVMASK 0x0100000 |
| #define XFS_DI_DMSTATE 0x0200000 |
| #define XFS_DI_FLAGS 0x0400000 |
| #define XFS_DI_GEN 0x0800000 |
| #define XFS_DI_NEXT_UNLINKED 0x1000000 |
| #define XFS_DI_U 0x2000000 |
| #define XFS_DI_A 0x4000000 |
| #define XFS_DI_NUM_BITS 27 |
| #define XFS_DI_ALL_BITS ((1 << XFS_DI_NUM_BITS) - 1) |
| #define XFS_DI_CORE_BITS (XFS_DI_ALL_BITS & ~(XFS_DI_U|XFS_DI_A)) |
| |
| /* |
| * Values for di_format |
| */ |
| typedef enum xfs_dinode_fmt |
| { |
| XFS_DINODE_FMT_DEV, /* CHR, BLK: di_dev */ |
| XFS_DINODE_FMT_LOCAL, /* DIR, REG: di_c */ |
| /* LNK: di_symlink */ |
| XFS_DINODE_FMT_EXTENTS, /* DIR, REG, LNK: di_bmx */ |
| XFS_DINODE_FMT_BTREE, /* DIR, REG, LNK: di_bmbt */ |
| XFS_DINODE_FMT_UUID /* MNT: di_uuid */ |
| } xfs_dinode_fmt_t; |
| |
| /* |
| * Inode minimum and maximum sizes. |
| */ |
| #define XFS_DINODE_MIN_LOG 8 |
| #define XFS_DINODE_MAX_LOG 11 |
| #define XFS_DINODE_MIN_SIZE (1 << XFS_DINODE_MIN_LOG) |
| #define XFS_DINODE_MAX_SIZE (1 << XFS_DINODE_MAX_LOG) |
| |
| /* |
| * Inode size for given fs. |
| */ |
| #define XFS_LITINO(mp) ((mp)->m_litino) |
| #define XFS_BROOT_SIZE_ADJ \ |
| (sizeof(xfs_bmbt_block_t) - sizeof(xfs_bmdr_block_t)) |
| |
| /* |
| * Inode data & attribute fork sizes, per inode. |
| */ |
| #define XFS_CFORK_Q(dcp) ((dcp)->di_forkoff != 0) |
| #define XFS_CFORK_Q_DISK(dcp) ((dcp)->di_forkoff != 0) |
| |
| #define XFS_CFORK_BOFF(dcp) ((int)((dcp)->di_forkoff << 3)) |
| #define XFS_CFORK_BOFF_DISK(dcp) \ |
| ((int)(INT_GET((dcp)->di_forkoff, ARCH_CONVERT) << 3)) |
| |
| #define XFS_CFORK_DSIZE_DISK(dcp,mp) \ |
| (XFS_CFORK_Q_DISK(dcp) ? XFS_CFORK_BOFF_DISK(dcp) : XFS_LITINO(mp)) |
| #define XFS_CFORK_DSIZE(dcp,mp) \ |
| (XFS_CFORK_Q(dcp) ? XFS_CFORK_BOFF(dcp) : XFS_LITINO(mp)) |
| |
| #define XFS_CFORK_ASIZE_DISK(dcp,mp) \ |
| (XFS_CFORK_Q_DISK(dcp) ? XFS_LITINO(mp) - XFS_CFORK_BOFF_DISK(dcp) : 0) |
| #define XFS_CFORK_ASIZE(dcp,mp) \ |
| (XFS_CFORK_Q(dcp) ? XFS_LITINO(mp) - XFS_CFORK_BOFF(dcp) : 0) |
| |
| #define XFS_CFORK_SIZE_DISK(dcp,mp,w) \ |
| ((w) == XFS_DATA_FORK ? \ |
| XFS_CFORK_DSIZE_DISK(dcp, mp) : \ |
| XFS_CFORK_ASIZE_DISK(dcp, mp)) |
| #define XFS_CFORK_SIZE(dcp,mp,w) \ |
| ((w) == XFS_DATA_FORK ? \ |
| XFS_CFORK_DSIZE(dcp, mp) : XFS_CFORK_ASIZE(dcp, mp)) |
| |
| #define XFS_DFORK_DSIZE(dip,mp) \ |
| XFS_CFORK_DSIZE_DISK(&(dip)->di_core, mp) |
| #define XFS_DFORK_ASIZE(dip,mp) \ |
| XFS_CFORK_ASIZE_DISK(&(dip)->di_core, mp) |
| #define XFS_DFORK_SIZE(dip,mp,w) \ |
| XFS_CFORK_SIZE_DISK(&(dip)->di_core, mp, w) |
| |
| #define XFS_DFORK_Q(dip) XFS_CFORK_Q_DISK(&(dip)->di_core) |
| #define XFS_DFORK_BOFF(dip) XFS_CFORK_BOFF_DISK(&(dip)->di_core) |
| #define XFS_DFORK_DPTR(dip) ((dip)->di_u.di_c) |
| #define XFS_DFORK_APTR(dip) \ |
| ((dip)->di_u.di_c + XFS_DFORK_BOFF(dip)) |
| #define XFS_DFORK_PTR(dip,w) \ |
| ((w) == XFS_DATA_FORK ? XFS_DFORK_DPTR(dip) : XFS_DFORK_APTR(dip)) |
| #define XFS_CFORK_FORMAT(dcp,w) \ |
| ((w) == XFS_DATA_FORK ? (dcp)->di_format : (dcp)->di_aformat) |
| #define XFS_CFORK_FMT_SET(dcp,w,n) \ |
| ((w) == XFS_DATA_FORK ? \ |
| ((dcp)->di_format = (n)) : ((dcp)->di_aformat = (n))) |
| |
| #define XFS_CFORK_NEXTENTS_DISK(dcp,w) \ |
| ((w) == XFS_DATA_FORK ? \ |
| INT_GET((dcp)->di_nextents, ARCH_CONVERT) : \ |
| INT_GET((dcp)->di_anextents, ARCH_CONVERT)) |
| #define XFS_CFORK_NEXTENTS(dcp,w) \ |
| ((w) == XFS_DATA_FORK ? (dcp)->di_nextents : (dcp)->di_anextents) |
| |
| #define XFS_CFORK_NEXT_SET(dcp,w,n) \ |
| ((w) == XFS_DATA_FORK ? \ |
| ((dcp)->di_nextents = (n)) : ((dcp)->di_anextents = (n))) |
| |
| #define XFS_DFORK_NEXTENTS(dip,w) XFS_CFORK_NEXTENTS_DISK(&(dip)->di_core, w) |
| |
| #define XFS_BUF_TO_DINODE(bp) ((xfs_dinode_t *)XFS_BUF_PTR(bp)) |
| |
| /* |
| * Values for di_flags |
| * There should be a one-to-one correspondence between these flags and the |
| * XFS_XFLAG_s. |
| */ |
| #define XFS_DIFLAG_REALTIME_BIT 0 /* file's blocks come from rt area */ |
| #define XFS_DIFLAG_PREALLOC_BIT 1 /* file space has been preallocated */ |
| #define XFS_DIFLAG_NEWRTBM_BIT 2 /* for rtbitmap inode, new format */ |
| #define XFS_DIFLAG_IMMUTABLE_BIT 3 /* inode is immutable */ |
| #define XFS_DIFLAG_APPEND_BIT 4 /* inode is append-only */ |
| #define XFS_DIFLAG_SYNC_BIT 5 /* inode is written synchronously */ |
| #define XFS_DIFLAG_NOATIME_BIT 6 /* do not update atime */ |
| #define XFS_DIFLAG_NODUMP_BIT 7 /* do not dump */ |
| #define XFS_DIFLAG_RTINHERIT_BIT 8 /* create with realtime bit set */ |
| #define XFS_DIFLAG_PROJINHERIT_BIT 9 /* create with parents projid */ |
| #define XFS_DIFLAG_NOSYMLINKS_BIT 10 /* disallow symlink creation */ |
| #define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT) |
| #define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT) |
| #define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT) |
| #define XFS_DIFLAG_IMMUTABLE (1 << XFS_DIFLAG_IMMUTABLE_BIT) |
| #define XFS_DIFLAG_APPEND (1 << XFS_DIFLAG_APPEND_BIT) |
| #define XFS_DIFLAG_SYNC (1 << XFS_DIFLAG_SYNC_BIT) |
| #define XFS_DIFLAG_NOATIME (1 << XFS_DIFLAG_NOATIME_BIT) |
| #define XFS_DIFLAG_NODUMP (1 << XFS_DIFLAG_NODUMP_BIT) |
| #define XFS_DIFLAG_RTINHERIT (1 << XFS_DIFLAG_RTINHERIT_BIT) |
| #define XFS_DIFLAG_PROJINHERIT (1 << XFS_DIFLAG_PROJINHERIT_BIT) |
| #define XFS_DIFLAG_NOSYMLINKS (1 << XFS_DIFLAG_NOSYMLINKS_BIT) |
| |
| #define XFS_DIFLAG_ANY \ |
| (XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \ |
| XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \ |
| XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \ |
| XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS) |
| |
| #endif /* __XFS_DINODE_H__ */ |