| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
| * All Rights Reserved. |
| */ |
| #ifndef __XFS_TYPES_H__ |
| #define __XFS_TYPES_H__ |
| |
| typedef uint32_t prid_t; /* project ID */ |
| |
| typedef uint32_t xfs_agblock_t; /* blockno in alloc. group */ |
| typedef uint32_t xfs_agino_t; /* inode # within allocation grp */ |
| typedef uint32_t xfs_extlen_t; /* extent length in blocks */ |
| typedef uint32_t xfs_agnumber_t; /* allocation group number */ |
| typedef int32_t xfs_extnum_t; /* # of extents in a file */ |
| typedef int16_t xfs_aextnum_t; /* # extents in an attribute fork */ |
| typedef int64_t xfs_fsize_t; /* bytes in a file */ |
| typedef uint64_t xfs_ufsize_t; /* unsigned bytes in a file */ |
| |
| typedef int32_t xfs_suminfo_t; /* type of bitmap summary info */ |
| typedef uint32_t xfs_rtword_t; /* word type for bitmap manipulations */ |
| |
| typedef int64_t xfs_lsn_t; /* log sequence number */ |
| |
| typedef uint32_t xfs_dablk_t; /* dir/attr block number (in file) */ |
| typedef uint32_t xfs_dahash_t; /* dir/attr hash value */ |
| |
| typedef uint64_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */ |
| typedef uint64_t xfs_rfsblock_t; /* blockno in filesystem (raw) */ |
| typedef uint64_t xfs_rtblock_t; /* extent (block) in realtime area */ |
| typedef uint64_t xfs_fileoff_t; /* block number in a file */ |
| typedef uint64_t xfs_filblks_t; /* number of blocks in a file */ |
| |
| typedef int64_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */ |
| |
| /* |
| * New verifiers will return the instruction address of the failing check. |
| * NULL means everything is ok. |
| */ |
| typedef void * xfs_failaddr_t; |
| |
| /* |
| * Null values for the types. |
| */ |
| #define NULLFSBLOCK ((xfs_fsblock_t)-1) |
| #define NULLRFSBLOCK ((xfs_rfsblock_t)-1) |
| #define NULLRTBLOCK ((xfs_rtblock_t)-1) |
| #define NULLFILEOFF ((xfs_fileoff_t)-1) |
| |
| #define NULLAGBLOCK ((xfs_agblock_t)-1) |
| #define NULLAGNUMBER ((xfs_agnumber_t)-1) |
| |
| #define NULLCOMMITLSN ((xfs_lsn_t)-1) |
| |
| #define NULLFSINO ((xfs_ino_t)-1) |
| #define NULLAGINO ((xfs_agino_t)-1) |
| |
| /* |
| * Max values for extlen, extnum, aextnum. |
| */ |
| #define MAXEXTLEN ((xfs_extlen_t)0x001fffff) /* 21 bits */ |
| #define MAXEXTNUM ((xfs_extnum_t)0x7fffffff) /* signed int */ |
| #define MAXAEXTNUM ((xfs_aextnum_t)0x7fff) /* signed short */ |
| |
| /* |
| * Minimum and maximum blocksize and sectorsize. |
| * The blocksize upper limit is pretty much arbitrary. |
| * The sectorsize upper limit is due to sizeof(sb_sectsize). |
| * CRC enable filesystems use 512 byte inodes, meaning 512 byte block sizes |
| * cannot be used. |
| */ |
| #define XFS_MIN_BLOCKSIZE_LOG 9 /* i.e. 512 bytes */ |
| #define XFS_MAX_BLOCKSIZE_LOG 16 /* i.e. 65536 bytes */ |
| #define XFS_MIN_BLOCKSIZE (1 << XFS_MIN_BLOCKSIZE_LOG) |
| #define XFS_MAX_BLOCKSIZE (1 << XFS_MAX_BLOCKSIZE_LOG) |
| #define XFS_MIN_CRC_BLOCKSIZE (1 << (XFS_MIN_BLOCKSIZE_LOG + 1)) |
| #define XFS_MIN_SECTORSIZE_LOG 9 /* i.e. 512 bytes */ |
| #define XFS_MAX_SECTORSIZE_LOG 15 /* i.e. 32768 bytes */ |
| #define XFS_MIN_SECTORSIZE (1 << XFS_MIN_SECTORSIZE_LOG) |
| #define XFS_MAX_SECTORSIZE (1 << XFS_MAX_SECTORSIZE_LOG) |
| |
| /* |
| * Inode fork identifiers. |
| */ |
| #define XFS_DATA_FORK 0 |
| #define XFS_ATTR_FORK 1 |
| #define XFS_COW_FORK 2 |
| |
| /* |
| * Min numbers of data/attr fork btree root pointers. |
| */ |
| #define MINDBTPTRS 3 |
| #define MINABTPTRS 2 |
| |
| /* |
| * MAXNAMELEN is the length (including the terminating null) of |
| * the longest permissible file (component) name. |
| */ |
| #define MAXNAMELEN 256 |
| |
| /* |
| * This enum is used in string mapping in xfs_trace.h; please keep the |
| * TRACE_DEFINE_ENUMs for it up to date. |
| */ |
| typedef enum { |
| XFS_LOOKUP_EQi, XFS_LOOKUP_LEi, XFS_LOOKUP_GEi |
| } xfs_lookup_t; |
| |
| #define XFS_AG_BTREE_CMP_FORMAT_STR \ |
| { XFS_LOOKUP_EQi, "eq" }, \ |
| { XFS_LOOKUP_LEi, "le" }, \ |
| { XFS_LOOKUP_GEi, "ge" } |
| |
| /* |
| * This enum is used in string mapping in xfs_trace.h and scrub/trace.h; |
| * please keep the TRACE_DEFINE_ENUMs for it up to date. |
| */ |
| typedef enum { |
| XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_RMAPi, XFS_BTNUM_BMAPi, |
| XFS_BTNUM_INOi, XFS_BTNUM_FINOi, XFS_BTNUM_REFCi, XFS_BTNUM_MAX |
| } xfs_btnum_t; |
| |
| #define XFS_BTNUM_STRINGS \ |
| { XFS_BTNUM_BNOi, "bnobt" }, \ |
| { XFS_BTNUM_CNTi, "cntbt" }, \ |
| { XFS_BTNUM_RMAPi, "rmapbt" }, \ |
| { XFS_BTNUM_BMAPi, "bmbt" }, \ |
| { XFS_BTNUM_INOi, "inobt" }, \ |
| { XFS_BTNUM_FINOi, "finobt" }, \ |
| { XFS_BTNUM_REFCi, "refcbt" } |
| |
| struct xfs_name { |
| const unsigned char *name; |
| int len; |
| int type; |
| }; |
| |
| /* |
| * uid_t and gid_t are hard-coded to 32 bits in the inode. |
| * Hence, an 'id' in a dquot is 32 bits.. |
| */ |
| typedef uint32_t xfs_dqid_t; |
| |
| /* |
| * Constants for bit manipulations. |
| */ |
| #define XFS_NBBYLOG 3 /* log2(NBBY) */ |
| #define XFS_WORDLOG 2 /* log2(sizeof(xfs_rtword_t)) */ |
| #define XFS_NBWORDLOG (XFS_NBBYLOG + XFS_WORDLOG) |
| #define XFS_NBWORD (1 << XFS_NBWORDLOG) |
| #define XFS_WORDMASK ((1 << XFS_WORDLOG) - 1) |
| |
| struct xfs_iext_cursor { |
| struct xfs_iext_leaf *leaf; |
| int pos; |
| }; |
| |
| typedef enum { |
| XFS_EXT_NORM, XFS_EXT_UNWRITTEN, |
| } xfs_exntst_t; |
| |
| typedef struct xfs_bmbt_irec |
| { |
| xfs_fileoff_t br_startoff; /* starting file offset */ |
| xfs_fsblock_t br_startblock; /* starting block number */ |
| xfs_filblks_t br_blockcount; /* number of blocks */ |
| xfs_exntst_t br_state; /* extent state */ |
| } xfs_bmbt_irec_t; |
| |
| /* per-AG block reservation types */ |
| enum xfs_ag_resv_type { |
| XFS_AG_RESV_NONE = 0, |
| XFS_AG_RESV_AGFL, |
| XFS_AG_RESV_METADATA, |
| XFS_AG_RESV_RMAPBT, |
| }; |
| |
| /* |
| * Type verifier functions |
| */ |
| struct xfs_mount; |
| |
| xfs_agblock_t xfs_ag_block_count(struct xfs_mount *mp, xfs_agnumber_t agno); |
| bool xfs_verify_agbno(struct xfs_mount *mp, xfs_agnumber_t agno, |
| xfs_agblock_t agbno); |
| bool xfs_verify_fsbno(struct xfs_mount *mp, xfs_fsblock_t fsbno); |
| |
| void xfs_agino_range(struct xfs_mount *mp, xfs_agnumber_t agno, |
| xfs_agino_t *first, xfs_agino_t *last); |
| bool xfs_verify_agino(struct xfs_mount *mp, xfs_agnumber_t agno, |
| xfs_agino_t agino); |
| bool xfs_verify_agino_or_null(struct xfs_mount *mp, xfs_agnumber_t agno, |
| xfs_agino_t agino); |
| bool xfs_verify_ino(struct xfs_mount *mp, xfs_ino_t ino); |
| bool xfs_internal_inum(struct xfs_mount *mp, xfs_ino_t ino); |
| bool xfs_verify_dir_ino(struct xfs_mount *mp, xfs_ino_t ino); |
| bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno); |
| bool xfs_verify_icount(struct xfs_mount *mp, unsigned long long icount); |
| bool xfs_verify_dablk(struct xfs_mount *mp, xfs_fileoff_t off); |
| void xfs_icount_range(struct xfs_mount *mp, unsigned long long *min, |
| unsigned long long *max); |
| |
| #endif /* __XFS_TYPES_H__ */ |