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/* * Copyright (c) 1995-2005 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 Lesser 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser 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_FS_H__ #define __XFS_FS_H__ /* * SGI's XFS filesystem's major stuff (constants, structures) */ #define XFS_NAME "xfs" /* * Direct I/O attribute record used with XFS_IOC_DIOINFO * d_miniosz is the min xfer size, xfer size multiple and file seek offset * alignment. */ #ifndef HAVE_DIOATTR struct dioattr { __u32 d_mem; /* data buffer memory alignment */ __u32 d_miniosz; /* min xfer size */ __u32 d_maxiosz; /* max xfer size */ }; #endif /* * Structure for XFS_IOC_FSGETXATTR[A] and XFS_IOC_FSSETXATTR. */ #ifndef HAVE_FSXATTR struct fsxattr { __u32 fsx_xflags; /* xflags field value (get/set) */ __u32 fsx_extsize; /* extsize field value (get/set)*/ __u32 fsx_nextents; /* nextents field value (get) */ __u32 fsx_projid; /* project identifier (get/set) */ unsigned char fsx_pad[12]; }; #endif /* * Flags for the bs_xflags/fsx_xflags field * There should be a one-to-one correspondence between these flags and the * XFS_DIFLAG_s. */ #define XFS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */ #define XFS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */ #define XFS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */ #define XFS_XFLAG_APPEND 0x00000010 /* all writes append */ #define XFS_XFLAG_SYNC 0x00000020 /* all writes synchronous */ #define XFS_XFLAG_NOATIME 0x00000040 /* do not update access time */ #define XFS_XFLAG_NODUMP 0x00000080 /* do not include in backups */ #define XFS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */ #define XFS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */ #define XFS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */ #define XFS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */ #define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */ #define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */ /* * Structure for XFS_IOC_GETBMAP. * On input, fill in bmv_offset and bmv_length of the first structure * to indicate the area of interest in the file, and bmv_entry with the * number of array elements given. The first structure is updated on * return to give the offset and length for the next call. */ #ifndef HAVE_GETBMAP struct getbmap { __s64 bmv_offset; /* file offset of segment in blocks */ __s64 bmv_block; /* starting block (64-bit daddr_t) */ __s64 bmv_length; /* length of segment, blocks */ __s32 bmv_count; /* # of entries in array incl. 1st */ __s32 bmv_entries; /* # of entries filled in (output) */ }; #endif /* * Structure for XFS_IOC_GETBMAPX. Fields bmv_offset through bmv_entries * are used exactly as in the getbmap structure. The getbmapx structure * has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field * is only used for the first structure. It contains input flags * specifying XFS_IOC_GETBMAPX actions. The bmv_oflags field is filled * in by the XFS_IOC_GETBMAPX command for each returned structure after * the first. */ #ifndef HAVE_GETBMAPX struct getbmapx { __s64 bmv_offset; /* file offset of segment in blocks */ __s64 bmv_block; /* starting block (64-bit daddr_t) */ __s64 bmv_length; /* length of segment, blocks */ __s32 bmv_count; /* # of entries in array incl. 1st */ __s32 bmv_entries; /* # of entries filled in (output). */ __s32 bmv_iflags; /* input flags (1st structure) */ __s32 bmv_oflags; /* output flags (after 1st structure)*/ __s32 bmv_unused1; /* future use */ __s32 bmv_unused2; /* future use */ }; #endif /* bmv_iflags values - set by XFS_IOC_GETBMAPX caller. */ #define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */ #define BMV_IF_NO_DMAPI_READ 0x2 /* Do not generate DMAPI read event */ #define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */ #define BMV_IF_VALID (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC) #ifdef __KERNEL__ #define BMV_IF_EXTENDED 0x40000000 /* getpmapx if set */ #endif /* bmv_oflags values - returned for for each non-header segment */ #define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */ /* Convert getbmap <-> getbmapx - move fields from p1 to p2. */ #define GETBMAP_CONVERT(p1,p2) { \ p2.bmv_offset = p1.bmv_offset; \ p2.bmv_block = p1.bmv_block; \ p2.bmv_length = p1.bmv_length; \ p2.bmv_count = p1.bmv_count; \ p2.bmv_entries = p1.bmv_entries; } /* * Structure for XFS_IOC_FSSETDM. * For use by backup and restore programs to set the XFS on-disk inode * fields di_dmevmask and di_dmstate. These must be set to exactly and * only values previously obtained via xfs_bulkstat! (Specifically the * xfs_bstat_t fields bs_dmevmask and bs_dmstate.) */ #ifndef HAVE_FSDMIDATA struct fsdmidata { __u32 fsd_dmevmask; /* corresponds to di_dmevmask */ __u16 fsd_padding; __u16 fsd_dmstate; /* corresponds to di_dmstate */ }; #endif /* * File segment locking set data type for 64 bit access. * Also used for all the RESV/FREE interfaces. */ typedef struct xfs_flock64 { __s16 l_type; __s16 l_whence; __s64 l_start; __s64 l_len; /* len == 0 means until end of file */ __s32 l_sysid; __u32 l_pid; __s32 l_pad[4]; /* reserve area */ } xfs_flock64_t; /* * Output for XFS_IOC_FSGEOMETRY_V1 */ typedef struct xfs_fsop_geom_v1 { __u32 blocksize; /* filesystem (data) block size */ __u32 rtextsize; /* realtime extent size */ __u32 agblocks; /* fsblocks in an AG */ __u32 agcount; /* number of allocation groups */ __u32 logblocks; /* fsblocks in the log */ __u32 sectsize; /* (data) sector size, bytes */ __u32 inodesize; /* inode size in bytes */ __u32 imaxpct; /* max allowed inode space(%) */ __u64 datablocks; /* fsblocks in data subvolume */ __u64 rtblocks; /* fsblocks in realtime subvol */ __u64 rtextents; /* rt extents in realtime subvol*/ __u64 logstart; /* starting fsblock of the log */ unsigned char uuid[16]; /* unique id of the filesystem */ __u32 sunit; /* stripe unit, fsblocks */ __u32 swidth; /* stripe width, fsblocks */ __s32 version; /* structure version */ __u32 flags; /* superblock version flags */ __u32 logsectsize; /* log sector size, bytes */ __u32 rtsectsize; /* realtime sector size, bytes */ __u32 dirblocksize; /* directory block size, bytes */ } xfs_fsop_geom_v1_t; /* * Output for XFS_IOC_FSGEOMETRY */ typedef struct xfs_fsop_geom { __u32 blocksize; /* filesystem (data) block size */ __u32 rtextsize; /* realtime extent size */ __u32 agblocks; /* fsblocks in an AG */ __u32 agcount; /* number of allocation groups */ __u32 logblocks; /* fsblocks in the log */ __u32 sectsize; /* (data) sector size, bytes */ __u32 inodesize; /* inode size in bytes */ __u32 imaxpct; /* max allowed inode space(%) */ __u64 datablocks; /* fsblocks in data subvolume */ __u64 rtblocks; /* fsblocks in realtime subvol */ __u64 rtextents; /* rt extents in realtime subvol*/ __u64 logstart; /* starting fsblock of the log */ unsigned char uuid[16]; /* unique id of the filesystem */ __u32 sunit; /* stripe unit, fsblocks */ __u32 swidth; /* stripe width, fsblocks */ __s32 version; /* structure version */ __u32 flags; /* superblock version flags */ __u32 logsectsize; /* log sector size, bytes */ __u32 rtsectsize; /* realtime sector size, bytes */ __u32 dirblocksize; /* directory block size, bytes */ __u32 logsunit; /* log stripe unit, bytes */ } xfs_fsop_geom_t; /* Output for XFS_FS_COUNTS */ typedef struct xfs_fsop_counts { __u64 freedata; /* free data section blocks */ __u64 freertx; /* free rt extents */ __u64 freeino; /* free inodes */ __u64 allocino; /* total allocated inodes */ } xfs_fsop_counts_t; /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */ typedef struct xfs_fsop_resblks { __u64 resblks; __u64 resblks_avail; } xfs_fsop_resblks_t; #define XFS_FSOP_GEOM_VERSION 0 #define XFS_FSOP_GEOM_FLAGS_ATTR 0x0001 /* attributes in use */ #define XFS_FSOP_GEOM_FLAGS_NLINK 0x0002 /* 32-bit nlink values */ #define XFS_FSOP_GEOM_FLAGS_QUOTA 0x0004 /* quotas enabled */ #define XFS_FSOP_GEOM_FLAGS_IALIGN 0x0008 /* inode alignment */ #define XFS_FSOP_GEOM_FLAGS_DALIGN 0x0010 /* large data alignment */ #define XFS_FSOP_GEOM_FLAGS_SHARED 0x0020 /* read-only shared */ #define XFS_FSOP_GEOM_FLAGS_EXTFLG 0x0040 /* special extent flag */ #define XFS_FSOP_GEOM_FLAGS_DIRV2 0x0080 /* directory version 2 */ #define XFS_FSOP_GEOM_FLAGS_LOGV2 0x0100 /* log format version 2 */ #define XFS_FSOP_GEOM_FLAGS_SECTOR 0x0200 /* sector sizes >1BB */ #define XFS_FSOP_GEOM_FLAGS_ATTR2 0x0400 /* inline attributes rework */ /* * Minimum and maximum sizes need for growth checks */ #define XFS_MIN_AG_BLOCKS 64 #define XFS_MIN_LOG_BLOCKS 512 #define XFS_MAX_LOG_BLOCKS (64 * 1024) #define XFS_MIN_LOG_BYTES (256 * 1024) #define XFS_MAX_LOG_BYTES (128 * 1024 * 1024) /* * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT */ typedef struct xfs_growfs_data { __u64 newblocks; /* new data subvol size, fsblocks */ __u32 imaxpct; /* new inode space percentage limit */ } xfs_growfs_data_t; typedef struct xfs_growfs_log { __u32 newblocks; /* new log size, fsblocks */ __u32 isint; /* 1 if new log is internal */ } xfs_growfs_log_t; typedef struct xfs_growfs_rt { __u64 newblocks; /* new realtime size, fsblocks */ __u32 extsize; /* new realtime extent size, fsblocks */ } xfs_growfs_rt_t; /* * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE */ typedef struct xfs_bstime { time_t tv_sec; /* seconds */ __s32 tv_nsec; /* and nanoseconds */ } xfs_bstime_t; typedef struct xfs_bstat { __u64 bs_ino; /* inode number */ __u16 bs_mode; /* type and mode */ __u16 bs_nlink; /* number of links */ __u32 bs_uid; /* user id */ __u32 bs_gid; /* group id */ __u32 bs_rdev; /* device value */ __s32 bs_blksize; /* block size */ __s64 bs_size; /* file size */ xfs_bstime_t bs_atime; /* access time */ xfs_bstime_t bs_mtime; /* modify time */ xfs_bstime_t bs_ctime; /* inode change time */ int64_t bs_blocks; /* number of blocks */ __u32 bs_xflags; /* extended flags */ __s32 bs_extsize; /* extent size */ __s32 bs_extents; /* number of extents */ __u32 bs_gen; /* generation count */ __u16 bs_projid; /* project id */ unsigned char bs_pad[14]; /* pad space, unused */ __u32 bs_dmevmask; /* DMIG event mask */ __u16 bs_dmstate; /* DMIG state info */ __u16 bs_aextents; /* attribute number of extents */ } xfs_bstat_t; /* * The user-level BulkStat Request interface structure. */ typedef struct xfs_fsop_bulkreq { __u64 __user *lastip; /* last inode # pointer */ __s32 icount; /* count of entries in buffer */ void __user *ubuffer;/* user buffer for inode desc. */ __s32 __user *ocount; /* output count pointer */ } xfs_fsop_bulkreq_t; /* * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS). */ typedef struct xfs_inogrp { __u64 xi_startino; /* starting inode number */ __s32 xi_alloccount; /* # bits set in allocmask */ __u64 xi_allocmask; /* mask of allocated inodes */ } xfs_inogrp_t; /* * Error injection. */ typedef struct xfs_error_injection { __s32 fd; __s32 errtag; } xfs_error_injection_t; /* * The user-level Handle Request interface structure. */ typedef struct xfs_fsop_handlereq { __u32 fd; /* fd for FD_TO_HANDLE */ void __user *path; /* user pathname */ __u32 oflags; /* open flags */ void __user *ihandle;/* user supplied handle */ __u32 ihandlen; /* user supplied length */ void __user *ohandle;/* user buffer for handle */ __u32 __user *ohandlen;/* user buffer length */ } xfs_fsop_handlereq_t; /* * Compound structures for passing args through Handle Request interfaces * xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and * XFS_IOC_ATTRMULTI_BY_HANDLE */ typedef struct xfs_fsop_setdm_handlereq { struct xfs_fsop_handlereq hreq; /* handle information */ struct fsdmidata __user *data; /* DMAPI data */ } xfs_fsop_setdm_handlereq_t; typedef struct xfs_attrlist_cursor { __u32 opaque[4]; } xfs_attrlist_cursor_t; typedef struct xfs_fsop_attrlist_handlereq { struct xfs_fsop_handlereq hreq; /* handle interface structure */ struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */ __u32 flags; /* which namespace to use */ __u32 buflen; /* length of buffer supplied */ void __user *buffer; /* returned names */ } xfs_fsop_attrlist_handlereq_t; typedef struct xfs_attr_multiop { __u32 am_opcode; __s32 am_error; void __user *am_attrname; void __user *am_attrvalue; __u32 am_length; __u32 am_flags; } xfs_attr_multiop_t; typedef struct xfs_fsop_attrmulti_handlereq { struct xfs_fsop_handlereq hreq; /* handle interface structure */ __u32 opcount;/* count of following multiop */ struct xfs_attr_multiop __user *ops; /* attr_multi data */ } xfs_fsop_attrmulti_handlereq_t; /* * per machine unique filesystem identifier types. */ typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */ #ifndef HAVE_FID #define MAXFIDSZ 46 typedef struct fid { __u16 fid_len; /* length of data in bytes */ unsigned char fid_data[MAXFIDSZ]; /* data (fid_len worth) */ } fid_t; #endif typedef struct xfs_fid { __u16 xfs_fid_len; /* length of remainder */ __u16 xfs_fid_pad; __u32 xfs_fid_gen; /* generation number */ __u64 xfs_fid_ino; /* 64 bits inode number */ } xfs_fid_t; typedef struct xfs_fid2 { __u16 fid_len; /* length of remainder */ __u16 fid_pad; /* padding, must be zero */ __u32 fid_gen; /* generation number */ __u64 fid_ino; /* inode number */ } xfs_fid2_t; typedef struct xfs_handle { union { __s64 align; /* force alignment of ha_fid */ xfs_fsid_t _ha_fsid; /* unique file system identifier */ } ha_u; xfs_fid_t ha_fid; /* file system specific file ID */ } xfs_handle_t; #define ha_fsid ha_u._ha_fsid #define XFS_HSIZE(handle) (((char *) &(handle).ha_fid.xfs_fid_pad \ - (char *) &(handle)) \ + (handle).ha_fid.xfs_fid_len) #define XFS_HANDLE_CMP(h1, h2) memcmp(h1, h2, sizeof(xfs_handle_t)) #define FSHSIZE sizeof(fsid_t) /* * Flags for going down operation */ #define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */ #define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */ #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */ /* * ioctl commands that are used by Linux filesystems */ #define XFS_IOC_GETXFLAGS _IOR('f', 1, long) #define XFS_IOC_SETXFLAGS _IOW('f', 2, long) #define XFS_IOC_GETVERSION _IOR('v', 1, long) /* * ioctl commands that replace IRIX fcntl()'s * For 'documentation' purposed more than anything else, * the "cmd #" field reflects the IRIX fcntl number. */ #define XFS_IOC_ALLOCSP _IOW ('X', 10, struct xfs_flock64) #define XFS_IOC_FREESP _IOW ('X', 11, struct xfs_flock64) #define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr) #define XFS_IOC_FSGETXATTR _IOR ('X', 31, struct fsxattr) #define XFS_IOC_FSSETXATTR _IOW ('X', 32, struct fsxattr) #define XFS_IOC_ALLOCSP64 _IOW ('X', 36, struct xfs_flock64) #define XFS_IOC_FREESP64 _IOW ('X', 37, struct xfs_flock64) #define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap) #define XFS_IOC_FSSETDM _IOW ('X', 39, struct fsdmidata) #define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64) #define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64) #define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64) #define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64) #define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap) #define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr) /* XFS_IOC_SETBIOSIZE ---- deprecated 46 */ /* XFS_IOC_GETBIOSIZE ---- deprecated 47 */ #define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap) /* * ioctl commands that replace IRIX syssgi()'s */ #define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1) #define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq) #define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq) #define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq) #define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq) #define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq) #define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq) #define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq) #define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq) #define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext) #define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data) #define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log) #define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt) #define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts) #define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks) #define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks) #define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection) #define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection) /* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */ #define XFS_IOC_FREEZE _IOWR('X', 119, int) #define XFS_IOC_THAW _IOWR('X', 120, int) #define XFS_IOC_FSSETDM_BY_HANDLE _IOW ('X', 121, struct xfs_fsop_setdm_handlereq) #define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq) #define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq) #define XFS_IOC_FSGEOMETRY _IOR ('X', 124, struct xfs_fsop_geom) #define XFS_IOC_GOINGDOWN _IOR ('X', 125, __uint32_t) /* XFS_IOC_GETFSUUID ---------- deprecated 140 */ #ifndef HAVE_BBMACROS /* * Block I/O parameterization. A basic block (BB) is the lowest size of * filesystem allocation, and must equal 512. Length units given to bio * routines are in BB's. */ #define BBSHIFT 9 #define BBSIZE (1<<BBSHIFT) #define BBMASK (BBSIZE-1) #define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT) #define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT) #define BBTOB(bbs) ((bbs) << BBSHIFT) #endif #endif /* __XFS_FS_H__ */