1 files changed, 78 insertions, 0 deletions
diff --git a/c_src/include/linux/xattr.h b/c_src/include/linux/xattr.h
new file mode 100644
index 00000000..dcdff6e8
--- /dev/null
+++ b/c_src/include/linux/xattr.h
@@ -0,0 +1,78 @@
+/*
+  File: linux/xattr.h
+
+  Extended attributes handling.
+
+  Copyright (C) 2001 by Andreas Gruenbacher <a.gruenbacher@computer.org>
+  Copyright (c) 2001-2002 Silicon Graphics, Inc.  All Rights Reserved.
+  Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
+*/
+#ifndef _LINUX_XATTR_H
+#define _LINUX_XATTR_H
+
+
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <uapi/linux/xattr.h>
+
+#ifndef XATTR_CREATE
+#define XATTR_CREATE	0x1
+#endif
+
+#ifndef XATTR_REPLACE
+#define XATTR_REPLACE	0x2
+#endif
+
+struct inode;
+struct dentry;
+struct user_namespace;
+
+/*
+ * struct xattr_handler: When @name is set, match attributes with exactly that
+ * name.  When @prefix is set instead, match attributes with that prefix and
+ * with a non-empty suffix.
+ */
+struct xattr_handler {
+	const char *name;
+	const char *prefix;
+	int flags;      /* fs private flags */
+	bool (*list)(struct dentry *dentry);
+	int (*get)(const struct xattr_handler *, struct dentry *dentry,
+		   struct inode *inode, const char *name, void *buffer,
+		   size_t size);
+	int (*set)(const struct xattr_handler *,
+		   struct mnt_idmap *idmap, struct dentry *dentry,
+		   struct inode *inode, const char *name, const void *buffer,
+		   size_t size, int flags);
+};
+
+const char *xattr_full_name(const struct xattr_handler *, const char *);
+
+struct xattr {
+	const char *name;
+	void *value;
+	size_t value_len;
+};
+
+ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t);
+ssize_t vfs_getxattr(struct dentry *, const char *, void *, size_t);
+ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
+int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, int);
+int vfs_setxattr(struct dentry *, const char *, const void *, size_t, int);
+int vfs_removexattr(struct dentry *, const char *);
+
+ssize_t generic_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size);
+ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size);
+int generic_setxattr(struct dentry *dentry, struct inode *inode,
+		     const char *name, const void *value, size_t size, int flags);
+int generic_removexattr(struct dentry *dentry, const char *name);
+ssize_t vfs_getxattr_alloc(struct dentry *dentry, const char *name,
+			   char **xattr_value, size_t size, gfp_t flags);
+
+static inline const char *xattr_prefix(const struct xattr_handler *handler)
+{
+	return handler->prefix ?: handler->name;
+}
+
+#endif	/* _LINUX_XATTR_H */