1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc. 4 * All Rights Reserved. 5 */ 6 #ifndef __XFS_ATTR_SF_H__ 7 #define __XFS_ATTR_SF_H__ 8 9 /* 10 * Attribute storage when stored inside the inode. 11 * 12 * Small attribute lists are packed as tightly as possible so as 13 * to fit into the literal area of the inode. 14 */ 15 typedef struct xfs_attr_sf_hdr xfs_attr_sf_hdr_t; 16 typedef struct xfs_attr_sf_entry xfs_attr_sf_entry_t; 17 18 /* 19 * We generate this then sort it, attr_list() must return things in hash-order. 20 */ 21 typedef struct xfs_attr_sf_sort { 22 uint8_t entno; /* entry number in original list */ 23 uint8_t namelen; /* length of name value (no null) */ 24 uint8_t valuelen; /* length of value */ 25 uint8_t flags; /* flags bits (see xfs_attr_leaf.h) */ 26 xfs_dahash_t hash; /* this entry's hash value */ 27 unsigned char *name; /* name value, pointer into buffer */ 28 } xfs_attr_sf_sort_t; 29 30 #define XFS_ATTR_SF_ENTSIZE_BYNAME(nlen,vlen) /* space name/value uses */ \ 31 (((int)sizeof(xfs_attr_sf_entry_t)-1 + (nlen)+(vlen))) 32 #define XFS_ATTR_SF_ENTSIZE_MAX /* max space for name&value */ \ 33 ((1 << (NBBY*(int)sizeof(uint8_t))) - 1) 34 #define XFS_ATTR_SF_ENTSIZE(sfep) /* space an entry uses */ \ 35 ((int)sizeof(xfs_attr_sf_entry_t)-1 + (sfep)->namelen+(sfep)->valuelen) 36 #define XFS_ATTR_SF_NEXTENTRY(sfep) /* next entry in struct */ \ 37 ((xfs_attr_sf_entry_t *)((char *)(sfep) + XFS_ATTR_SF_ENTSIZE(sfep))) 38 #define XFS_ATTR_SF_TOTSIZE(dp) /* total space in use */ \ 39 (be16_to_cpu(((xfs_attr_shortform_t *) \ 40 ((dp)->i_afp->if_u1.if_data))->hdr.totsize)) 41 42 #endif /* __XFS_ATTR_SF_H__ */ 43