http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/xfs/xfs_dinode.h

/* * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms 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. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #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_DSIZE_HOST(dip,mp) \ XFS_CFORK_DSIZE(&(dip)->di_core, mp) #define XFS_DFORK_ASIZE(dip,mp) \ XFS_CFORK_ASIZE_DISK(&(dip)->di_core, mp) #define XFS_DFORK_ASIZE_HOST(dip,mp) \ XFS_CFORK_ASIZE(&(dip)->di_core, mp) #define XFS_DFORK_SIZE(dip,mp,w) \ XFS_CFORK_SIZE_DISK(&(dip)->di_core, mp, w) #define XFS_DFORK_SIZE_HOST(dip,mp,w) \ XFS_CFORK_SIZE(&(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_DFORK_FORMAT(dip,w) XFS_CFORK_FORMAT(&(dip)->di_core, w) #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_DFORK_NEXTENTS(dip,w) XFS_CFORK_NEXTENTS_DISK(&(dip)->di_core, w) #define XFS_DFORK_NEXTENTS_HOST(dip,w) XFS_CFORK_NEXTENTS(&(dip)->di_core, w) #define XFS_CFORK_NEXT_SET(dcp,w,n) \ ((w) == XFS_DATA_FORK ? \ ((dcp)->di_nextents = (n)) : ((dcp)->di_anextents = (n))) #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_EXTSIZE_BIT 11 /* inode extent size allocator hint */ #define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */ #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_EXTSIZE (1 << XFS_DIFLAG_EXTSIZE_BIT) #define XFS_DIFLAG_EXTSZINHERIT (1 << XFS_DIFLAG_EXTSZINHERIT_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 | XFS_DIFLAG_EXTSIZE | \ XFS_DIFLAG_EXTSZINHERIT) #endif /* __XFS_DINODE_H__ */