xref: /illumos-gate/usr/src/uts/common/fs/zfs/sys/dmu_send.h (revision 148434206d3ba623dff65e4b591dffc0ddadebf3)
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 /*
23  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24  * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
25  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
26  * Copyright (c) 2013, Joyent, Inc. All rights reserved.
27  * Copyright (c) 2014 Integros [integros.com]
28  */
29 
30 #ifndef _DMU_SEND_H
31 #define	_DMU_SEND_H
32 
33 #include <sys/inttypes.h>
34 #include <sys/spa.h>
35 
36 struct vnode;
37 struct dsl_dataset;
38 struct drr_begin;
39 struct avl_tree;
40 struct dmu_replay_record;
41 
42 extern const char *recv_clone_name;
43 
44 int dmu_send(const char *tosnap, const char *fromsnap, boolean_t embedok,
45     boolean_t large_block_ok, boolean_t compressok, int outfd,
46     uint64_t resumeobj, uint64_t resumeoff,
47     struct vnode *vp, offset_t *off);
48 int dmu_send_estimate(struct dsl_dataset *ds, struct dsl_dataset *fromds,
49     boolean_t stream_compressed, uint64_t *sizep);
50 int dmu_send_estimate_from_txg(struct dsl_dataset *ds, uint64_t fromtxg,
51     boolean_t stream_compressed, uint64_t *sizep);
52 int dmu_send_obj(const char *pool, uint64_t tosnap, uint64_t fromsnap,
53     boolean_t embedok, boolean_t large_block_ok, boolean_t compressok,
54     int outfd, struct vnode *vp, offset_t *off);
55 
56 typedef struct dmu_recv_cookie {
57 	struct dsl_dataset *drc_ds;
58 	struct dmu_replay_record *drc_drr_begin;
59 	struct drr_begin *drc_drrb;
60 	const char *drc_tofs;
61 	const char *drc_tosnap;
62 	boolean_t drc_newfs;
63 	boolean_t drc_byteswap;
64 	boolean_t drc_force;
65 	boolean_t drc_resumable;
66 	struct avl_tree *drc_guid_to_ds_map;
67 	zio_cksum_t drc_cksum;
68 	uint64_t drc_newsnapobj;
69 	void *drc_owner;
70 	cred_t *drc_cred;
71 } dmu_recv_cookie_t;
72 
73 int dmu_recv_begin(char *tofs, char *tosnap,
74     struct dmu_replay_record *drr_begin,
75     boolean_t force, boolean_t resumable, char *origin, dmu_recv_cookie_t *drc);
76 int dmu_recv_stream(dmu_recv_cookie_t *drc, struct vnode *vp, offset_t *voffp,
77     int cleanup_fd, uint64_t *action_handlep);
78 int dmu_recv_end(dmu_recv_cookie_t *drc, void *owner);
79 boolean_t dmu_objset_is_receiving(objset_t *os);
80 
81 #endif /* _DMU_SEND_H */
82