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-rw-r--r--uts/common/sys/gfs.h173
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diff --git a/uts/common/sys/gfs.h b/uts/common/sys/gfs.h
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+/*
+ * 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 */