1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* -*- mode: c; c-basic-offset: 8; -*- 3 * vim: noexpandtab sw=8 ts=8 sts=0: 4 * 5 * xattr.h 6 * 7 * Copyright (C) 2004, 2008 Oracle. All rights reserved. 8 */ 9 10 #ifndef OCFS2_XATTR_H 11 #define OCFS2_XATTR_H 12 13 #include <linux/init.h> 14 #include <linux/xattr.h> 15 16 enum ocfs2_xattr_type { 17 OCFS2_XATTR_INDEX_USER = 1, 18 OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS, 19 OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT, 20 OCFS2_XATTR_INDEX_TRUSTED, 21 OCFS2_XATTR_INDEX_SECURITY, 22 OCFS2_XATTR_MAX 23 }; 24 25 struct ocfs2_security_xattr_info { 26 int enable; 27 const char *name; 28 void *value; 29 size_t value_len; 30 }; 31 32 extern const struct xattr_handler ocfs2_xattr_user_handler; 33 extern const struct xattr_handler ocfs2_xattr_trusted_handler; 34 extern const struct xattr_handler ocfs2_xattr_security_handler; 35 extern const struct xattr_handler *ocfs2_xattr_handlers[]; 36 37 ssize_t ocfs2_listxattr(struct dentry *, char *, size_t); 38 int ocfs2_xattr_get_nolock(struct inode *, struct buffer_head *, int, 39 const char *, void *, size_t); 40 int ocfs2_xattr_set(struct inode *, int, const char *, const void *, 41 size_t, int); 42 int ocfs2_xattr_set_handle(handle_t *, struct inode *, struct buffer_head *, 43 int, const char *, const void *, size_t, int, 44 struct ocfs2_alloc_context *, 45 struct ocfs2_alloc_context *); 46 int ocfs2_has_inline_xattr_value_outside(struct inode *inode, 47 struct ocfs2_dinode *di); 48 int ocfs2_xattr_remove(struct inode *, struct buffer_head *); 49 int ocfs2_init_security_get(struct inode *, struct inode *, 50 const struct qstr *, 51 struct ocfs2_security_xattr_info *); 52 int ocfs2_init_security_set(handle_t *, struct inode *, 53 struct buffer_head *, 54 struct ocfs2_security_xattr_info *, 55 struct ocfs2_alloc_context *, 56 struct ocfs2_alloc_context *); 57 int ocfs2_calc_security_init(struct inode *, 58 struct ocfs2_security_xattr_info *, 59 int *, int *, struct ocfs2_alloc_context **); 60 int ocfs2_calc_xattr_init(struct inode *, struct buffer_head *, 61 umode_t, struct ocfs2_security_xattr_info *, 62 int *, int *, int *); 63 64 /* 65 * xattrs can live inside an inode, as part of an external xattr block, 66 * or inside an xattr bucket, which is the leaf of a tree rooted in an 67 * xattr block. Some of the xattr calls, especially the value setting 68 * functions, want to treat each of these locations as equal. Let's wrap 69 * them in a structure that we can pass around instead of raw buffer_heads. 70 */ 71 struct ocfs2_xattr_value_buf { 72 struct buffer_head *vb_bh; 73 ocfs2_journal_access_func vb_access; 74 struct ocfs2_xattr_value_root *vb_xv; 75 }; 76 77 int ocfs2_xattr_attach_refcount_tree(struct inode *inode, 78 struct buffer_head *fe_bh, 79 struct ocfs2_caching_info *ref_ci, 80 struct buffer_head *ref_root_bh, 81 struct ocfs2_cached_dealloc_ctxt *dealloc); 82 int ocfs2_reflink_xattrs(struct inode *old_inode, 83 struct buffer_head *old_bh, 84 struct inode *new_inode, 85 struct buffer_head *new_bh, 86 bool preserve_security); 87 int ocfs2_init_security_and_acl(struct inode *dir, 88 struct inode *inode, 89 const struct qstr *qstr); 90 #endif /* OCFS2_XATTR_H */ 91