17336d0e6SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2307cf6e6SSteven Whitehouse /* 3307cf6e6SSteven Whitehouse * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 4307cf6e6SSteven Whitehouse * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 5307cf6e6SSteven Whitehouse */ 6307cf6e6SSteven Whitehouse 7307cf6e6SSteven Whitehouse #ifndef __EATTR_DOT_H__ 8307cf6e6SSteven Whitehouse #define __EATTR_DOT_H__ 9307cf6e6SSteven Whitehouse 10307cf6e6SSteven Whitehouse struct gfs2_inode; 11307cf6e6SSteven Whitehouse struct iattr; 12307cf6e6SSteven Whitehouse 13307cf6e6SSteven Whitehouse #define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len) 14307cf6e6SSteven Whitehouse #define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len) 15307cf6e6SSteven Whitehouse 16307cf6e6SSteven Whitehouse #define GFS2_EA_SIZE(ea) \ 17307cf6e6SSteven Whitehouse ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \ 18307cf6e6SSteven Whitehouse ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \ 19307cf6e6SSteven Whitehouse (sizeof(__be64) * (ea)->ea_num_ptrs)), 8) 20307cf6e6SSteven Whitehouse 21307cf6e6SSteven Whitehouse #define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs) 22307cf6e6SSteven Whitehouse #define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST) 23307cf6e6SSteven Whitehouse 24307cf6e6SSteven Whitehouse #define GFS2_EAREQ_SIZE_STUFFED(er) \ 25307cf6e6SSteven Whitehouse ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8) 26307cf6e6SSteven Whitehouse 27307cf6e6SSteven Whitehouse #define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1)) 28307cf6e6SSteven Whitehouse #define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len) 29307cf6e6SSteven Whitehouse 30307cf6e6SSteven Whitehouse #define GFS2_EA2DATAPTRS(ea) \ 31307cf6e6SSteven Whitehouse ((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8))) 32307cf6e6SSteven Whitehouse 33307cf6e6SSteven Whitehouse #define GFS2_EA2NEXT(ea) \ 34307cf6e6SSteven Whitehouse ((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea))) 35307cf6e6SSteven Whitehouse 36307cf6e6SSteven Whitehouse #define GFS2_EA_BH2FIRST(bh) \ 37307cf6e6SSteven Whitehouse ((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header))) 38307cf6e6SSteven Whitehouse 39307cf6e6SSteven Whitehouse struct gfs2_ea_request { 40307cf6e6SSteven Whitehouse const char *er_name; 41307cf6e6SSteven Whitehouse char *er_data; 42307cf6e6SSteven Whitehouse unsigned int er_name_len; 43307cf6e6SSteven Whitehouse unsigned int er_data_len; 44307cf6e6SSteven Whitehouse unsigned int er_type; /* GFS2_EATYPE_... */ 45307cf6e6SSteven Whitehouse }; 46307cf6e6SSteven Whitehouse 47307cf6e6SSteven Whitehouse struct gfs2_ea_location { 48307cf6e6SSteven Whitehouse struct buffer_head *el_bh; 49307cf6e6SSteven Whitehouse struct gfs2_ea_header *el_ea; 50307cf6e6SSteven Whitehouse struct gfs2_ea_header *el_prev; 51307cf6e6SSteven Whitehouse }; 52307cf6e6SSteven Whitehouse 53*d312fbf6SAndreas Gruenbacher int __gfs2_xattr_set(struct inode *inode, const char *name, 54431547b3SChristoph Hellwig const void *value, size_t size, 55431547b3SChristoph Hellwig int flags, int type); 56*d312fbf6SAndreas Gruenbacher ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size); 57*d312fbf6SAndreas Gruenbacher int gfs2_ea_dealloc(struct gfs2_inode *ip); 58307cf6e6SSteven Whitehouse 59307cf6e6SSteven Whitehouse /* Exported to acl.c */ 60307cf6e6SSteven Whitehouse 61*d312fbf6SAndreas Gruenbacher int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **data); 62307cf6e6SSteven Whitehouse 63307cf6e6SSteven Whitehouse #endif /* __EATTR_DOT_H__ */ 64