| /* |
| * Copyright (c) 2000-2005 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 __LIBXFS_H__ |
| #define __LIBXFS_H__ |
| |
| #include "libxfs_api_defs.h" |
| #include "platform_defs.h" |
| #include "xfs.h" |
| |
| #include "list.h" |
| #include "hlist.h" |
| #include "cache.h" |
| #include "bitops.h" |
| #include "kmem.h" |
| #include "radix-tree.h" |
| #include "atomic.h" |
| |
| #include "xfs_types.h" |
| #include "xfs_fs.h" |
| #include "xfs_arch.h" |
| |
| #include "xfs_shared.h" |
| #include "xfs_format.h" |
| #include "xfs_log_format.h" |
| #include "xfs_quota_defs.h" |
| #include "xfs_trans_resv.h" |
| |
| |
| /* CRC stuff, buffer API dependent on it */ |
| extern uint32_t crc32_le(uint32_t crc, unsigned char const *p, size_t len); |
| extern uint32_t crc32c_le(uint32_t crc, unsigned char const *p, size_t len); |
| |
| #define crc32(c,p,l) crc32_le((c),(unsigned char const *)(p),(l)) |
| #define crc32c(c,p,l) crc32c_le((c),(unsigned char const *)(p),(l)) |
| |
| #include "xfs_cksum.h" |
| |
| /* |
| * This mirrors the kernel include for xfs_buf.h - it's implicitly included in |
| * every files via a similar include in the kernel xfs_linux.h. |
| */ |
| #include "libxfs_io.h" |
| |
| #include "xfs_bit.h" |
| #include "xfs_sb.h" |
| #include "xfs_mount.h" |
| #include "xfs_defer.h" |
| #include "xfs_errortag.h" |
| #include "xfs_da_format.h" |
| #include "xfs_da_btree.h" |
| #include "xfs_dir2.h" |
| #include "xfs_bmap_btree.h" |
| #include "xfs_alloc_btree.h" |
| #include "xfs_ialloc_btree.h" |
| #include "xfs_attr_sf.h" |
| #include "xfs_inode_fork.h" |
| #include "xfs_inode_buf.h" |
| #include "xfs_inode.h" |
| #include "xfs_alloc.h" |
| #include "xfs_btree.h" |
| #include "xfs_btree_trace.h" |
| #include "xfs_bmap.h" |
| #include "xfs_trace.h" |
| #include "xfs_trans.h" |
| #include "xfs_rmap_btree.h" |
| #include "xfs_rmap.h" |
| #include "xfs_refcount_btree.h" |
| #include "xfs_refcount.h" |
| |
| #ifndef ARRAY_SIZE |
| #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
| #endif |
| |
| #ifndef XFS_SUPER_MAGIC |
| #define XFS_SUPER_MAGIC 0x58465342 |
| #endif |
| |
| #define xfs_isset(a,i) ((a)[(i)/(sizeof(*(a))*NBBY)] & (1ULL<<((i)%(sizeof(*(a))*NBBY)))) |
| |
| /* |
| * Argument structure for libxfs_init(). |
| */ |
| typedef struct libxfs_xinit { |
| /* input parameters */ |
| char *volname; /* pathname of volume */ |
| char *dname; /* pathname of data "subvolume" */ |
| char *logname; /* pathname of log "subvolume" */ |
| char *rtname; /* pathname of realtime "subvolume" */ |
| int isreadonly; /* filesystem is only read in applic */ |
| int isdirect; /* we can attempt to use direct I/O */ |
| int disfile; /* data "subvolume" is a regular file */ |
| int dcreat; /* try to create data subvolume */ |
| int lisfile; /* log "subvolume" is a regular file */ |
| int lcreat; /* try to create log subvolume */ |
| int risfile; /* realtime "subvolume" is a reg file */ |
| int rcreat; /* try to create realtime subvolume */ |
| int setblksize; /* attempt to set device blksize */ |
| int usebuflock; /* lock xfs_buf_t's - for MT usage */ |
| /* output results */ |
| dev_t ddev; /* device for data subvolume */ |
| dev_t logdev; /* device for log subvolume */ |
| dev_t rtdev; /* device for realtime subvolume */ |
| long long dsize; /* size of data subvolume (BBs) */ |
| long long logBBsize; /* size of log subvolume (BBs) */ |
| /* (blocks allocated for use as |
| * log is stored in mount structure) */ |
| long long logBBstart; /* start block of log subvolume (BBs) */ |
| long long rtsize; /* size of realtime subvolume (BBs) */ |
| int dbsize; /* data subvolume device blksize */ |
| int lbsize; /* log subvolume device blksize */ |
| int rtbsize; /* realtime subvolume device blksize */ |
| int dfd; /* data subvolume file descriptor */ |
| int logfd; /* log subvolume file descriptor */ |
| int rtfd; /* realtime subvolume file descriptor */ |
| int icache_flags; /* cache init flags */ |
| int bcache_flags; /* cache init flags */ |
| } libxfs_init_t; |
| |
| #define LIBXFS_EXIT_ON_FAILURE 0x0001 /* exit the program if a call fails */ |
| #define LIBXFS_ISREADONLY 0x0002 /* disallow all mounted filesystems */ |
| #define LIBXFS_ISINACTIVE 0x0004 /* allow mounted only if mounted ro */ |
| #define LIBXFS_DANGEROUSLY 0x0008 /* repairing a device mounted ro */ |
| #define LIBXFS_EXCLUSIVELY 0x0010 /* disallow other accesses (O_EXCL) */ |
| #define LIBXFS_DIRECT 0x0020 /* can use direct I/O, not buffered */ |
| |
| extern char *progname; |
| extern xfs_lsn_t libxfs_max_lsn; |
| extern int libxfs_init (libxfs_init_t *); |
| extern void libxfs_destroy (void); |
| extern int libxfs_device_to_fd (dev_t); |
| extern dev_t libxfs_device_open (char *, int, int, int); |
| extern void libxfs_device_close (dev_t); |
| extern int libxfs_device_alignment (void); |
| extern void libxfs_report(FILE *); |
| extern void platform_findsizes(char *path, int fd, long long *sz, int *bsz); |
| extern int platform_nproc(void); |
| |
| /* check or write log footer: specify device, log size in blocks & uuid */ |
| typedef char *(libxfs_get_block_t)(char *, int, void *); |
| |
| /* |
| * Helpers to clear the log to a particular log cycle. |
| */ |
| #define XLOG_INIT_CYCLE 1 |
| extern int libxfs_log_clear(struct xfs_buftarg *, char *, xfs_daddr_t, |
| uint, uuid_t *, int, int, int, int, bool); |
| extern int libxfs_log_header(char *, uuid_t *, int, int, int, xfs_lsn_t, |
| xfs_lsn_t, libxfs_get_block_t *, void *); |
| |
| |
| /* Shared utility routines */ |
| |
| extern int libxfs_alloc_file_space (struct xfs_inode *, xfs_off_t, |
| xfs_off_t, int, int); |
| |
| extern void libxfs_fs_repair_cmn_err(int, struct xfs_mount *, char *, ...); |
| extern void libxfs_fs_cmn_err(int, struct xfs_mount *, char *, ...); |
| |
| /* XXX: this is messy and needs fixing */ |
| #ifndef __LIBXFS_INTERNAL_XFS_H__ |
| extern void cmn_err(int, char *, ...); |
| enum ce { CE_DEBUG, CE_CONT, CE_NOTE, CE_WARN, CE_ALERT, CE_PANIC }; |
| #endif |
| |
| |
| extern int libxfs_nproc(void); |
| extern unsigned long libxfs_physmem(void); /* in kilobytes */ |
| |
| #include "xfs_ialloc.h" |
| |
| #include "xfs_attr_leaf.h" |
| #include "xfs_attr_remote.h" |
| #include "xfs_trans_space.h" |
| |
| #define XFS_INOBT_IS_FREE_DISK(rp,i) \ |
| ((be64_to_cpu((rp)->ir_free) & XFS_INOBT_MASK(i)) != 0) |
| |
| static inline bool |
| xfs_inobt_is_sparse_disk( |
| struct xfs_inobt_rec *rp, |
| int offset) |
| { |
| int spshift; |
| uint16_t holemask; |
| |
| holemask = be16_to_cpu(rp->ir_u.sp.ir_holemask); |
| spshift = offset / XFS_INODES_PER_HOLEMASK_BIT; |
| if ((1 << spshift) & holemask) |
| return true; |
| |
| return false; |
| } |
| |
| static inline void |
| libxfs_bmbt_disk_get_all( |
| struct xfs_bmbt_rec *rec, |
| struct xfs_bmbt_irec *irec) |
| { |
| uint64_t l0 = get_unaligned_be64(&rec->l0); |
| uint64_t l1 = get_unaligned_be64(&rec->l1); |
| |
| irec->br_startoff = (l0 & xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN)) >> 9; |
| irec->br_startblock = ((l0 & xfs_mask64lo(9)) << 43) | (l1 >> 21); |
| irec->br_blockcount = l1 & xfs_mask64lo(21); |
| if (l0 >> (64 - BMBT_EXNTFLAG_BITLEN)) |
| irec->br_state = XFS_EXT_UNWRITTEN; |
| else |
| irec->br_state = XFS_EXT_NORM; |
| } |
| |
| /* XXX: this is clearly a bug - a shared header needs to export this */ |
| /* xfs_rtalloc.c */ |
| int libxfs_rtfree_extent(struct xfs_trans *, xfs_rtblock_t, xfs_extlen_t); |
| |
| /* XXX: need parts of xfs_attr.h in userspace */ |
| #define LIBXFS_ATTR_ROOT 0x0002 /* use attrs in root namespace */ |
| #define LIBXFS_ATTR_SECURE 0x0008 /* use attrs in security namespace */ |
| #define LIBXFS_ATTR_CREATE 0x0010 /* create, but fail if attr exists */ |
| #define LIBXFS_ATTR_REPLACE 0x0020 /* set, but fail if attr not exists */ |
| |
| int xfs_attr_remove(struct xfs_inode *dp, const unsigned char *name, int flags); |
| int xfs_attr_set(struct xfs_inode *dp, const unsigned char *name, |
| unsigned char *value, int valuelen, int flags); |
| |
| #endif /* __LIBXFS_H__ */ |