11da177e4SLinus Torvalds /* 263f83c9fSDave Kleikamp * Copyright (C) International Business Machines Corp., 2000-2001 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 51da177e4SLinus Torvalds * it under the terms of the GNU General Public License as published by 61da177e4SLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 71da177e4SLinus Torvalds * (at your option) any later version. 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * This program is distributed in the hope that it will be useful, 101da177e4SLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 111da177e4SLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 121da177e4SLinus Torvalds * the GNU General Public License for more details. 131da177e4SLinus Torvalds * 141da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License 151da177e4SLinus Torvalds * along with this program; if not, write to the Free Software 161da177e4SLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 171da177e4SLinus Torvalds */ 181da177e4SLinus Torvalds #ifndef _H_JFS_DINODE 191da177e4SLinus Torvalds #define _H_JFS_DINODE 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds /* 221da177e4SLinus Torvalds * jfs_dinode.h: on-disk inode manager 231da177e4SLinus Torvalds */ 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define INODESLOTSIZE 128 261da177e4SLinus Torvalds #define L2INODESLOTSIZE 7 271da177e4SLinus Torvalds #define log2INODESIZE 9 /* log2(bytes per dinode) */ 281da177e4SLinus Torvalds 291da177e4SLinus Torvalds 301da177e4SLinus Torvalds /* 311da177e4SLinus Torvalds * on-disk inode : 512 bytes 321da177e4SLinus Torvalds * 331da177e4SLinus Torvalds * note: align 64-bit fields on 8-byte boundary. 341da177e4SLinus Torvalds */ 351da177e4SLinus Torvalds struct dinode { 361da177e4SLinus Torvalds /* 371da177e4SLinus Torvalds * I. base area (128 bytes) 381da177e4SLinus Torvalds * ------------------------ 391da177e4SLinus Torvalds * 401da177e4SLinus Torvalds * define generic/POSIX attributes 411da177e4SLinus Torvalds */ 421da177e4SLinus Torvalds __le32 di_inostamp; /* 4: stamp to show inode belongs to fileset */ 431da177e4SLinus Torvalds __le32 di_fileset; /* 4: fileset number */ 441da177e4SLinus Torvalds __le32 di_number; /* 4: inode number, aka file serial number */ 451da177e4SLinus Torvalds __le32 di_gen; /* 4: inode generation number */ 461da177e4SLinus Torvalds 471da177e4SLinus Torvalds pxd_t di_ixpxd; /* 8: inode extent descriptor */ 481da177e4SLinus Torvalds 491da177e4SLinus Torvalds __le64 di_size; /* 8: size */ 501da177e4SLinus Torvalds __le64 di_nblocks; /* 8: number of blocks allocated */ 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds __le32 di_nlink; /* 4: number of links to the object */ 531da177e4SLinus Torvalds 541da177e4SLinus Torvalds __le32 di_uid; /* 4: user id of owner */ 551da177e4SLinus Torvalds __le32 di_gid; /* 4: group id of owner */ 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds __le32 di_mode; /* 4: attribute, format and permission */ 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds struct timestruc_t di_atime; /* 8: time last data accessed */ 601da177e4SLinus Torvalds struct timestruc_t di_ctime; /* 8: time last status changed */ 611da177e4SLinus Torvalds struct timestruc_t di_mtime; /* 8: time last data modified */ 621da177e4SLinus Torvalds struct timestruc_t di_otime; /* 8: time created */ 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds dxd_t di_acl; /* 16: acl descriptor */ 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds dxd_t di_ea; /* 16: ea descriptor */ 671da177e4SLinus Torvalds 681da177e4SLinus Torvalds __le32 di_next_index; /* 4: Next available dir_table index */ 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds __le32 di_acltype; /* 4: Type of ACL */ 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds /* 731da177e4SLinus Torvalds * Extension Areas. 741da177e4SLinus Torvalds * 751da177e4SLinus Torvalds * Historically, the inode was partitioned into 4 128-byte areas, 761da177e4SLinus Torvalds * the last 3 being defined as unions which could have multiple 771da177e4SLinus Torvalds * uses. The first 96 bytes had been completely unused until 781da177e4SLinus Torvalds * an index table was added to the directory. It is now more 791da177e4SLinus Torvalds * useful to describe the last 3/4 of the inode as a single 801da177e4SLinus Torvalds * union. We would probably be better off redesigning the 811da177e4SLinus Torvalds * entire structure from scratch, but we don't want to break 821da177e4SLinus Torvalds * commonality with OS/2's JFS at this time. 831da177e4SLinus Torvalds */ 841da177e4SLinus Torvalds union { 851da177e4SLinus Torvalds struct { 861da177e4SLinus Torvalds /* 871da177e4SLinus Torvalds * This table contains the information needed to 881da177e4SLinus Torvalds * find a directory entry from a 32-bit index. 891da177e4SLinus Torvalds * If the index is small enough, the table is inline, 901da177e4SLinus Torvalds * otherwise, an x-tree root overlays this table 911da177e4SLinus Torvalds */ 921da177e4SLinus Torvalds struct dir_table_slot _table[12]; /* 96: inline */ 931da177e4SLinus Torvalds 941da177e4SLinus Torvalds dtroot_t _dtroot; /* 288: dtree root */ 951da177e4SLinus Torvalds } _dir; /* (384) */ 961da177e4SLinus Torvalds #define di_dirtable u._dir._table 971da177e4SLinus Torvalds #define di_dtroot u._dir._dtroot 981da177e4SLinus Torvalds #define di_parent di_dtroot.header.idotdot 991da177e4SLinus Torvalds #define di_DASD di_dtroot.header.DASD 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds struct { 1021da177e4SLinus Torvalds union { 1031da177e4SLinus Torvalds u8 _data[96]; /* 96: unused */ 1041da177e4SLinus Torvalds struct { 1051da177e4SLinus Torvalds void *_imap; /* 4: unused */ 1061da177e4SLinus Torvalds __le32 _gengen; /* 4: generator */ 1071da177e4SLinus Torvalds } _imap; 1081da177e4SLinus Torvalds } _u1; /* 96: */ 1091da177e4SLinus Torvalds #define di_gengen u._file._u1._imap._gengen 1101da177e4SLinus Torvalds 1111da177e4SLinus Torvalds union { 1121da177e4SLinus Torvalds xtpage_t _xtroot; 1131da177e4SLinus Torvalds struct { 1141da177e4SLinus Torvalds u8 unused[16]; /* 16: */ 1151da177e4SLinus Torvalds dxd_t _dxd; /* 16: */ 1161da177e4SLinus Torvalds union { 1171da177e4SLinus Torvalds __le32 _rdev; /* 4: */ 1181da177e4SLinus Torvalds u8 _fastsymlink[128]; 1191da177e4SLinus Torvalds } _u; 1201da177e4SLinus Torvalds u8 _inlineea[128]; 1211da177e4SLinus Torvalds } _special; 1221da177e4SLinus Torvalds } _u2; 1231da177e4SLinus Torvalds } _file; 1241da177e4SLinus Torvalds #define di_xtroot u._file._u2._xtroot 1251da177e4SLinus Torvalds #define di_dxd u._file._u2._special._dxd 1261da177e4SLinus Torvalds #define di_btroot di_xtroot 1271da177e4SLinus Torvalds #define di_inlinedata u._file._u2._special._u 1281da177e4SLinus Torvalds #define di_rdev u._file._u2._special._u._rdev 1291da177e4SLinus Torvalds #define di_fastsymlink u._file._u2._special._u._fastsymlink 1301da177e4SLinus Torvalds #define di_inlineea u._file._u2._special._inlineea 1311da177e4SLinus Torvalds } u; 1321da177e4SLinus Torvalds }; 1331da177e4SLinus Torvalds 1341da177e4SLinus Torvalds /* extended mode bits (on-disk inode di_mode) */ 1351da177e4SLinus Torvalds #define IFJOURNAL 0x00010000 /* journalled file */ 1361da177e4SLinus Torvalds #define ISPARSE 0x00020000 /* sparse file enabled */ 1371da177e4SLinus Torvalds #define INLINEEA 0x00040000 /* inline EA area free */ 1381da177e4SLinus Torvalds #define ISWAPFILE 0x00800000 /* file open for pager swap space */ 1391da177e4SLinus Torvalds 1401da177e4SLinus Torvalds /* more extended mode bits: attributes for OS/2 */ 1411da177e4SLinus Torvalds #define IREADONLY 0x02000000 /* no write access to file */ 1421da177e4SLinus Torvalds #define IHIDDEN 0x04000000 /* hidden file */ 143fa3241d2SHerbert Poetzl #define ISYSTEM 0x08000000 /* system file */ 144fa3241d2SHerbert Poetzl 1451da177e4SLinus Torvalds #define IDIRECTORY 0x20000000 /* directory (shadow of real bit) */ 146fa3241d2SHerbert Poetzl #define IARCHIVE 0x40000000 /* file archive bit */ 147fa3241d2SHerbert Poetzl #define INEWNAME 0x80000000 /* non-8.3 filename format */ 148fa3241d2SHerbert Poetzl 149fa3241d2SHerbert Poetzl #define IRASH 0x4E000000 /* mask for changeable attributes */ 1501da177e4SLinus Torvalds #define ATTRSHIFT 25 /* bits to shift to move attribute 1511da177e4SLinus Torvalds specification to mode position */ 1521da177e4SLinus Torvalds 153fa3241d2SHerbert Poetzl /* extended attributes for Linux */ 154fa3241d2SHerbert Poetzl 155fa3241d2SHerbert Poetzl #define JFS_NOATIME_FL 0x00080000 /* do not update atime */ 156fa3241d2SHerbert Poetzl 157fa3241d2SHerbert Poetzl #define JFS_DIRSYNC_FL 0x00100000 /* dirsync behaviour */ 158fa3241d2SHerbert Poetzl #define JFS_SYNC_FL 0x00200000 /* Synchronous updates */ 159fa3241d2SHerbert Poetzl #define JFS_SECRM_FL 0x00400000 /* Secure deletion */ 160fa3241d2SHerbert Poetzl #define JFS_UNRM_FL 0x00800000 /* allow for undelete */ 161fa3241d2SHerbert Poetzl 162fa3241d2SHerbert Poetzl #define JFS_APPEND_FL 0x01000000 /* writes to file may only append */ 163fa3241d2SHerbert Poetzl #define JFS_IMMUTABLE_FL 0x02000000 /* Immutable file */ 164fa3241d2SHerbert Poetzl 165fa3241d2SHerbert Poetzl #define JFS_FL_USER_VISIBLE 0x03F80000 166fa3241d2SHerbert Poetzl #define JFS_FL_USER_MODIFIABLE 0x03F80000 167fa3241d2SHerbert Poetzl #define JFS_FL_INHERIT 0x03C80000 168fa3241d2SHerbert Poetzl 169fa3241d2SHerbert Poetzl /* These are identical to EXT[23]_IOC_GETFLAGS/SETFLAGS */ 170fa3241d2SHerbert Poetzl #define JFS_IOC_GETFLAGS _IOR('f', 1, long) 171fa3241d2SHerbert Poetzl #define JFS_IOC_SETFLAGS _IOW('f', 2, long) 172fa3241d2SHerbert Poetzl 173*ef1fc2f0SAndi Kleen #define JFS_IOC_GETFLAGS32 _IOR('f', 1, int) 174*ef1fc2f0SAndi Kleen #define JFS_IOC_SETFLAGS32 _IOW('f', 2, int) 175fa3241d2SHerbert Poetzl 1761da177e4SLinus Torvalds #endif /*_H_JFS_DINODE */ 177