usr/src/uts/common/fs/zfs/sys/dmu_send.h

   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 */