/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_ATTR_SF_H__
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#define __XFS_ATTR_SF_H__
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/*
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* Attribute storage when stored inside the inode.
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*
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* Small attribute lists are packed as tightly as possible so as
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* to fit into the literal area of the inode.
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*/
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typedef struct xfs_attr_sf_hdr xfs_attr_sf_hdr_t;
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/*
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* We generate this then sort it, attr_list() must return things in hash-order.
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*/
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typedef struct xfs_attr_sf_sort {
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uint8_t entno; /* entry number in original list */
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uint8_t namelen; /* length of name value (no null) */
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uint8_t valuelen; /* length of value */
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uint8_t flags; /* flags bits (see xfs_attr_leaf.h) */
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xfs_dahash_t hash; /* this entry's hash value */
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unsigned char *name; /* name value, pointer into buffer */
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} xfs_attr_sf_sort_t;
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#define XFS_ATTR_SF_ENTSIZE_MAX /* max space for name&value */ \
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((1 << (NBBY*(int)sizeof(uint8_t))) - 1)
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/* space name/value uses */
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static inline int xfs_attr_sf_entsize_byname(uint8_t nlen, uint8_t vlen)
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{
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return sizeof(struct xfs_attr_sf_entry) + nlen + vlen;
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}
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/* space an entry uses */
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static inline int xfs_attr_sf_entsize(struct xfs_attr_sf_entry *sfep)
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{
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return struct_size(sfep, nameval, sfep->namelen + sfep->valuelen);
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}
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/* next entry in struct */
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static inline struct xfs_attr_sf_entry *
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xfs_attr_sf_nextentry(struct xfs_attr_sf_entry *sfep)
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{
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return (void *)sfep + xfs_attr_sf_entsize(sfep);
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}
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#endif /* __XFS_ATTR_SF_H__ */
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