1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 4*4882a593Smuzhiyun * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef __EATTR_DOT_H__ 8*4882a593Smuzhiyun #define __EATTR_DOT_H__ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun struct gfs2_inode; 11*4882a593Smuzhiyun struct iattr; 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len) 14*4882a593Smuzhiyun #define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len) 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #define GFS2_EA_SIZE(ea) \ 17*4882a593Smuzhiyun ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \ 18*4882a593Smuzhiyun ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \ 19*4882a593Smuzhiyun (sizeof(__be64) * (ea)->ea_num_ptrs)), 8) 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs) 22*4882a593Smuzhiyun #define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST) 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #define GFS2_EAREQ_SIZE_STUFFED(er) \ 25*4882a593Smuzhiyun ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8) 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun #define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1)) 28*4882a593Smuzhiyun #define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len) 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #define GFS2_EA2DATAPTRS(ea) \ 31*4882a593Smuzhiyun ((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8))) 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #define GFS2_EA2NEXT(ea) \ 34*4882a593Smuzhiyun ((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea))) 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun #define GFS2_EA_BH2FIRST(bh) \ 37*4882a593Smuzhiyun ((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header))) 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun struct gfs2_ea_request { 40*4882a593Smuzhiyun const char *er_name; 41*4882a593Smuzhiyun char *er_data; 42*4882a593Smuzhiyun unsigned int er_name_len; 43*4882a593Smuzhiyun unsigned int er_data_len; 44*4882a593Smuzhiyun unsigned int er_type; /* GFS2_EATYPE_... */ 45*4882a593Smuzhiyun }; 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun struct gfs2_ea_location { 48*4882a593Smuzhiyun struct buffer_head *el_bh; 49*4882a593Smuzhiyun struct gfs2_ea_header *el_ea; 50*4882a593Smuzhiyun struct gfs2_ea_header *el_prev; 51*4882a593Smuzhiyun }; 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun extern int __gfs2_xattr_set(struct inode *inode, const char *name, 54*4882a593Smuzhiyun const void *value, size_t size, 55*4882a593Smuzhiyun int flags, int type); 56*4882a593Smuzhiyun extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size); 57*4882a593Smuzhiyun extern int gfs2_ea_dealloc(struct gfs2_inode *ip); 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun /* Exported to acl.c */ 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun extern int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **data); 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun #endif /* __EATTR_DOT_H__ */ 64