include/sys/dmu_recv.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 https://opensource.org/licenses/CDDL-1.0.
  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, 2020 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) 2019 Datto Inc.
  28  */
  29
  30 #ifndef _DMU_RECV_H
  31 #define _DMU_RECV_H
  32
  33 #include <sys/inttypes.h>
  34 #include <sys/dsl_bookmark.h>
  35 #include <sys/dsl_dataset.h>
  36 #include <sys/spa.h>
  37 #include <sys/objlist.h>
  38
  39 extern const char *const recv_clone_name;
  40
  41 typedef struct dmu_recv_cookie {
  42         struct dsl_dataset *drc_ds;
  43         struct dmu_replay_record *drc_drr_begin;
  44         struct drr_begin *drc_drrb;
  45         const char *drc_tofs;
  46         const char *drc_tosnap;
  47         boolean_t drc_newfs;
  48         boolean_t drc_byteswap;
  49         uint64_t drc_featureflags;
  50         boolean_t drc_force;
  51         boolean_t drc_heal;
  52         boolean_t drc_resumable;
  53         boolean_t drc_should_save;
  54         boolean_t drc_raw;
  55         boolean_t drc_clone;
  56         boolean_t drc_spill;
  57         nvlist_t *drc_keynvl;
  58         uint64_t drc_fromsnapobj;
  59         uint64_t drc_ivset_guid;
  60         void *drc_owner;
  61         cred_t *drc_cred;
  62         proc_t *drc_proc;
  63         nvlist_t *drc_begin_nvl;
  64
  65         objset_t *drc_os;
  66         zfs_file_t *drc_fp; /* The file to read the stream from */
  67         uint64_t drc_voff; /* The current offset in the stream */
  68         uint64_t drc_bytes_read;
  69         /*
  70          * A record that has had its payload read in, but hasn't yet been handed
  71          * off to the worker thread.
  72          */
  73         struct receive_record_arg *drc_rrd;
  74         /* A record that has had its header read in, but not its payload. */
  75         struct receive_record_arg *drc_next_rrd;
  76         zio_cksum_t drc_cksum;
  77         zio_cksum_t drc_prev_cksum;
  78         /* Sorted list of objects not to issue prefetches for. */
  79         objlist_t *drc_ignore_objlist;
  80 } dmu_recv_cookie_t;
  81
  82 int dmu_recv_begin(const char *, const char *, dmu_replay_record_t *,
  83     boolean_t, boolean_t, boolean_t, nvlist_t *, nvlist_t *, const char *,
  84     dmu_recv_cookie_t *, zfs_file_t *, offset_t *);
  85 int dmu_recv_stream(dmu_recv_cookie_t *, offset_t *);
  86 int dmu_recv_end(dmu_recv_cookie_t *, void *);
  87 boolean_t dmu_objset_is_receiving(objset_t *);
  88
  89 #endif /* _DMU_RECV_H */