1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 #ifndef _ZFS_CTLDIR_H 26 #define _ZFS_CTLDIR_H 27 28 #include <sys/pathname.h> 29 #include <sys/vnode.h> 30 #include <sys/zfs_vfsops.h> 31 #include <sys/zfs_znode.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #define ZFS_CTLDIR_NAME ".zfs" 38 39 #define zfs_has_ctldir(zdp) \ 40 ((zdp)->z_id == (zdp)->z_zfsvfs->z_root && \ 41 ((zdp)->z_zfsvfs->z_ctldir != NULL)) 42 #define zfs_show_ctldir(zdp) \ 43 (zfs_has_ctldir(zdp) && \ 44 ((zdp)->z_zfsvfs->z_show_ctldir)) 45 46 void zfsctl_create(zfsvfs_t *); 47 void zfsctl_destroy(zfsvfs_t *); 48 vnode_t *zfsctl_root(znode_t *); 49 void zfsctl_init(void); 50 void zfsctl_fini(void); 51 boolean_t zfsctl_is_node(vnode_t *); 52 53 int zfsctl_rename_snapshot(const char *from, const char *to); 54 int zfsctl_destroy_snapshot(const char *snapname, int force); 55 int zfsctl_umount_snapshots(vfs_t *, int, cred_t *); 56 57 int zfsctl_root_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, pathname_t *pnp, 58 int flags, vnode_t *rdir, cred_t *cr, caller_context_t *ct, 59 int *direntflags, pathname_t *realpnp); 60 61 int zfsctl_make_fid(zfsvfs_t *zfsvfsp, uint64_t object, uint32_t gen, 62 fid_t *fidp); 63 int zfsctl_lookup_objset(vfs_t *vfsp, uint64_t objsetid, zfsvfs_t **zfsvfsp); 64 65 #define ZFSCTL_INO_ROOT 0x1 66 #define ZFSCTL_INO_SNAPDIR 0x2 67 68 #ifdef __cplusplus 69 } 70 #endif 71 72 #endif /* _ZFS_CTLDIR_H */ 73