1#!/bin/ksh
2
3#
4# This file and its contents are supplied under the terms of the
5# Common Development and Distribution License ("CDDL"), version 1.0.
6# You may only use this file in accordance with the terms of version
7# 1.0 of the CDDL.
8#
9# A full copy of the text of the CDDL should have accompanied this
10# source.  A copy of the CDDL is also available via the Internet at
11# http://www.illumos.org/license/CDDL.
12#
13
14#
15# Copyright (c) 2019 by Lawrence Livermore National Security, LLC.
16#
17
18. $STF_SUITE/include/properties.shlib
19. $STF_SUITE/include/libtest.shlib
20. $STF_SUITE/tests/functional/rsend/rsend.kshlib
21
22#
23# Description:
24# Verify incremental receive properly handles reallocation.
25#
26# Strategy:
27# 1. Create a pool containing an encrypted filesystem.
28# 2. Use 'zfs send -wp' to perform a raw send of the initial filesystem.
29# 3. Repeat the following steps N times to verify raw incremental receives.
30#   a) Randomly change several key dataset properties.
31#   b) Modify the contents of the filesystem such that dnode reallocation
32#      is likely during the 'zfs receive', and receive_object() exercises
33#      as much of its functionality as possible.
34#   c) Create a new snapshot and generate an raw incremental stream.
35#   d) Receive the raw incremental stream and verify the received contents.
36#   e) Destroy the incremental stream and old snapshot.
37#
38
39verify_runnable "both"
40
41log_assert "Verify incremental receive handles reallocation"
42
43function cleanup
44{
45	rm -f $BACKDIR/fs@*
46	destroy_dataset $POOL/fs "-rR"
47	destroy_dataset $POOL/newfs "-rR"
48}
49
50log_onexit cleanup
51
52log_must zfs create $POOL/fs
53
54last_snap=1
55log_must zfs snapshot $POOL/fs@snap${last_snap}
56log_must eval "zfs send $POOL/fs@snap${last_snap} >$BACKDIR/fs@snap${last_snap}"
57log_must eval "zfs recv $POOL/newfs < $BACKDIR/fs@snap${last_snap}"
58
59# Set atime=off to prevent the recursive_cksum from modifying newfs.
60log_must zfs set atime=off $POOL/newfs
61
62if is_kmemleak; then
63	# Use fewer files and passes on debug kernels
64	# to avoid timeout due to reduced performance.
65	nr_files=100
66	passes=2
67else
68	nr_files=300
69	passes=3
70fi
71
72for i in {1..$passes}; do
73	# Randomly modify several dataset properties in order to generate
74	# more interesting incremental send streams.
75	rand_set_prop $POOL/fs checksum "off" "fletcher4" "sha256"
76	rand_set_prop $POOL/fs compression "${compress_prop_vals[@]}"
77	rand_set_prop $POOL/fs recordsize "32K" "128K"
78	rand_set_prop $POOL/fs dnodesize "legacy" "auto" "4k"
79	rand_set_prop $POOL/fs xattr "on" "sa"
80
81	# Churn the filesystem in such a way that we're likely to be both
82	# allocating and reallocating objects in the incremental stream.
83	log_must churn_files $nr_files 524288 $POOL/fs
84	expected_cksum=$(recursive_cksum /$POOL/fs)
85
86	# Create a snapshot and use it to send an incremental stream.
87	this_snap=$((last_snap + 1))
88	log_must zfs snapshot $POOL/fs@snap${this_snap}
89	log_must eval "zfs send -i $POOL/fs@snap${last_snap} \
90	    $POOL/fs@snap${this_snap} > $BACKDIR/fs@snap${this_snap}"
91
92	# Receive the incremental stream and verify the received contents.
93	log_must eval "zfs recv $POOL/newfs < $BACKDIR/fs@snap${this_snap}"
94	actual_cksum=$(recursive_cksum /$POOL/newfs)
95
96	if [[ "$expected_cksum" != "$actual_cksum" ]]; then
97		log_fail "Checksums differ ($expected_cksum != $actual_cksum)"
98	fi
99
100	# Destroy the incremental stream and old snapshot.
101	rm -f $BACKDIR/fs@snap${last_snap}
102	log_must zfs destroy $POOL/fs@snap${last_snap}
103	log_must zfs destroy $POOL/newfs@snap${last_snap}
104	last_snap=$this_snap
105done
106
107log_pass "Verify incremental receive handles dnode reallocation"
108