ff4a549a34
Add Linux compatibility header stubs needed to compile extents_status.c: - backing-dev.h: Backing device info stub - dax.h: Direct Access (DAX) stubs - iomap.h: I/O mapping operations and structures - mman.h: Memory mapping flags - mount.h: VFS mount structures - pagevec.h: Page vector batching - pfn_t.h: Page frame number type - posix_acl_xattr.h: POSIX ACL xattr definitions - proc_fs.h: Proc filesystem stub - uio.h: User I/O vector definitions - xattr.h: Extended attributes - trace/events/ext4.h: Trace event stubs Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com> Signed-off-by: Simon Glass <simon.glass@canonical.com>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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File: linux/xattr.h
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Extended attributes handling.
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Copyright (C) 2001 by Andreas Gruenbacher <a.gruenbacher@computer.org>
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Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved.
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Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
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*/
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#ifndef _LINUX_XATTR_H
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#define _LINUX_XATTR_H
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#include <linux/types.h>
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/* XATTR namespace prefixes */
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#define XATTR_USER_PREFIX "user."
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#define XATTR_USER_PREFIX_LEN 5
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#define XATTR_TRUSTED_PREFIX "trusted."
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#define XATTR_TRUSTED_PREFIX_LEN 8
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#define XATTR_SECURITY_PREFIX "security."
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#define XATTR_SECURITY_PREFIX_LEN 9
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#define XATTR_SYSTEM_PREFIX "system."
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#define XATTR_SYSTEM_PREFIX_LEN 7
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/* Maximum size of an xattr value */
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#define XATTR_SIZE_MAX 65536
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/* Maximum length of an xattr name */
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#define XATTR_NAME_MAX 255
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/* Maximum size of a listxattr buffer */
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#define XATTR_LIST_MAX 65536
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struct xattr_handler {
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const char *name;
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const char *prefix;
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int flags;
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bool (*list)(struct dentry *dentry);
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int (*get)(const struct xattr_handler *handler,
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struct dentry *dentry, struct inode *inode,
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const char *name, void *buffer, size_t size);
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int (*set)(const struct xattr_handler *handler,
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struct mnt_idmap *idmap, struct dentry *dentry,
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struct inode *inode, const char *name, const void *value,
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size_t size, int flags);
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};
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/* Common flags */
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#define XATTR_CREATE 0x1
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#define XATTR_REPLACE 0x2
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#endif /* _LINUX_XATTR_H */
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