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