1 files changed, 173 insertions, 0 deletions
diff --git a/uts/common/sys/gfs.h b/uts/common/sys/gfs.h
new file mode 100644
index 000000000000..71c7c2ef78c9
--- /dev/null
+++ b/uts/common/sys/gfs.h
@@ -0,0 +1,173 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ */
+
+/*
+ * These are Consolidation Private interfaces and are subject to change.
+ */
+
+#ifndef _SYS_GFS_H
+#define	_SYS_GFS_H
+
+#include <sys/types.h>
+#include <sys/vnode.h>
+#include <sys/vfs_opreg.h>
+#include <sys/mutex.h>
+#include <sys/dirent.h>
+#include <sys/extdirent.h>
+#include <sys/uio.h>
+#include <sys/list.h>
+#include <sys/pathname.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+typedef struct gfs_opsvec {
+	const char		*gfsv_name;	/* vnode description */
+	const fs_operation_def_t *gfsv_template; /* ops template */
+	vnodeops_t		**gfsv_ops;	/* ptr to result */
+} gfs_opsvec_t;
+
+int gfs_make_opsvec(gfs_opsvec_t *);
+
+#define	GFS_CACHE_VNODE		0x1
+
+typedef struct gfs_dirent {
+	char			*gfse_name;	/* entry name */
+	vnode_t *(*gfse_ctor)(vnode_t *);	/* constructor */
+	int			gfse_flags;	/* flags */
+	list_node_t		gfse_link;	/* dynamic list */
+	vnode_t			*gfse_vnode;	/* cached vnode */
+} gfs_dirent_t;
+
+typedef enum gfs_type {
+	GFS_DIR,
+	GFS_FILE
+} gfs_type_t;
+
+typedef struct gfs_file {
+	vnode_t		*gfs_vnode;	/* current vnode */
+	vnode_t		*gfs_parent;	/* parent vnode */
+	size_t		gfs_size;	/* size of private data structure */
+	gfs_type_t	gfs_type;	/* type of vnode */
+	int		gfs_index;	/* index in parent dir */
+	ino64_t		gfs_ino;	/* inode for this vnode */
+} gfs_file_t;
+
+typedef int (*gfs_readdir_cb)(vnode_t *, void *, int *, offset_t *,
+    offset_t *, void *, int);
+typedef int (*gfs_lookup_cb)(vnode_t *, const char *, vnode_t **, ino64_t *,
+    cred_t *, int, int *, pathname_t *);
+typedef ino64_t (*gfs_inode_cb)(vnode_t *, int);
+
+typedef struct gfs_dir {
+	gfs_file_t	gfsd_file;	/* generic file attributes */
+	gfs_dirent_t	*gfsd_static;	/* statically defined entries */
+	int		gfsd_nstatic;	/* # static entries */
+	kmutex_t	gfsd_lock;	/* protects entries */
+	int		gfsd_maxlen;	/* maximum name length */
+	gfs_readdir_cb	gfsd_readdir;	/* readdir() callback */
+	gfs_lookup_cb	gfsd_lookup;	/* lookup() callback */
+	gfs_inode_cb	gfsd_inode;	/* get an inode number */
+} gfs_dir_t;
+
+struct vfs;
+
+extern vnode_t *gfs_file_create(size_t, vnode_t *, vnodeops_t *);
+extern vnode_t *gfs_dir_create(size_t, vnode_t *, vnodeops_t *,
+    gfs_dirent_t *, gfs_inode_cb, int, gfs_readdir_cb, gfs_lookup_cb);
+extern vnode_t *gfs_root_create(size_t, struct vfs *, vnodeops_t *, ino64_t,
+    gfs_dirent_t *, gfs_inode_cb, int, gfs_readdir_cb, gfs_lookup_cb);
+extern vnode_t *gfs_root_create_file(size_t, struct vfs *, vnodeops_t *,
+    ino64_t);
+
+extern void *gfs_file_inactive(vnode_t *);
+extern void *gfs_dir_inactive(vnode_t *);
+
+extern int gfs_dir_case_lookup(vnode_t *, const char *, vnode_t **, cred_t *,
+    int, int *, pathname_t *);
+extern int gfs_dir_lookup(vnode_t *, const char *, vnode_t **, cred_t *,
+    int, int *, pathname_t *);
+extern int gfs_dir_readdir(vnode_t *, uio_t *, int *, void *, cred_t *,
+    caller_context_t *, int flags);
+
+#define	gfs_dir_lock(gd)	mutex_enter(&(gd)->gfsd_lock)
+#define	gfs_dir_unlock(gd)	mutex_exit(&(gd)->gfsd_lock)
+#define	GFS_DIR_LOCKED(gd)	MUTEX_HELD(&(gd)->gfsd_lock)
+
+#define	gfs_file_parent(vp)	(((gfs_file_t *)(vp)->v_data)->gfs_parent)
+
+#define	gfs_file_index(vp)	(((gfs_file_t *)(vp)->v_data)->gfs_index)
+#define	gfs_file_set_index(vp, idx)	\
+	(((gfs_file_t *)(vp)->v_data)->gfs_index = (idx))
+
+#define	gfs_file_inode(vp)	(((gfs_file_t *)(vp)->v_data)->gfs_ino)
+#define	gfs_file_set_inode(vp, ino)	\
+	(((gfs_file_t *)(vp)->v_data)->gfs_ino = (ino))
+
+typedef struct gfs_readdir_state {
+	void		*grd_dirent;	/* directory entry buffer */
+	size_t		grd_namlen;	/* max file name length */
+	size_t		grd_ureclen;	/* exported record size */
+	ssize_t		grd_oresid;	/* original uio_resid */
+	ino64_t		grd_parent;	/* inode of parent */
+	ino64_t		grd_self;	/* inode of self */
+	int		grd_flags;	/* flags from VOP_READDIR */
+} gfs_readdir_state_t;
+
+extern int gfs_readdir_init(gfs_readdir_state_t *, int, int, uio_t *, ino64_t,
+    ino64_t, int);
+extern int gfs_readdir_emit(gfs_readdir_state_t *, uio_t *, offset_t, ino64_t,
+    const char *, int);
+extern int gfs_readdir_emitn(gfs_readdir_state_t *, uio_t *, offset_t, ino64_t,
+    unsigned long);
+extern int gfs_readdir_pred(gfs_readdir_state_t *, uio_t *, offset_t *);
+extern int gfs_readdir_fini(gfs_readdir_state_t *, int, int *, int);
+extern int gfs_get_parent_ino(vnode_t *, cred_t *, caller_context_t *,
+    ino64_t *, ino64_t *);
+
+/*
+ * Objects with real extended attributes will get their . and ..
+ * readdir entries from the real xattr directory. GFS_STATIC_ENTRY_OFFSET
+ * lets us skip right to the static entries in the GFS directory.
+ */
+#define	GFS_STATIC_ENTRY_OFFSET	((offset_t)2)
+
+extern int gfs_lookup_dot(vnode_t **, vnode_t *, vnode_t *, const char *);
+
+extern int gfs_vop_lookup(vnode_t *, char *, vnode_t **, pathname_t *,
+    int, vnode_t *, cred_t *, caller_context_t *, int *, pathname_t *);
+extern int gfs_vop_readdir(vnode_t *, uio_t *, cred_t *, int *,
+    caller_context_t *, int);
+extern int gfs_vop_map(vnode_t *, offset_t, struct as *, caddr_t *,
+    size_t, uchar_t, uchar_t, uint_t, cred_t *, caller_context_t *);
+extern void gfs_vop_inactive(vnode_t *, cred_t *, caller_context_t *);
+
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_GFS_H */