1#!/bin/ksh -p 2# 3# This file and its contents are supplied under the terms of the 4# Common Development and Distribution License ("CDDL"), version 1.0. 5# You may only use this file in accordance with the terms of version 6# 1.0 of the CDDL. 7# 8# A full copy of the text of the CDDL should have accompanied this 9# source. A copy of the CDDL is also available via the Internet at 10# http://www.illumos.org/license/CDDL. 11# 12 13# 14# Copyright 2017, loli10K <ezomori.nozomu@gmail.com>. All rights reserved. 15# 16 17. $STF_SUITE/include/libtest.shlib 18 19# 20# DESCRIPTION: 21# 'zfs send' should be able to send (big) sparse files correctly. 22# 23# STRATEGY: 24# 1. Create sparse files of various size 25# 2. Snapshot and send these sparse files 26# 3. Verify these files are received correctly and we don't trigger any issue 27# like the one described in https://github.com/openzfs/zfs/pull/6760 28# 29 30verify_runnable "both" 31 32function cleanup 33{ 34 datasetexists $SENDFS && log_must zfs destroy -r $SENDFS 35 datasetexists $RECVFS && log_must zfs destroy -r $RECVFS 36} 37 38# 39# Write 1 random byte at $offset of "source" file in $sendfs dataset 40# Snapshot and send $sendfs dataset to $recvfs 41# Compare the received file with its source 42# 43function write_compare_files # <sendfs> <recvfs> <offset> 44{ 45 typeset sendfs="$1" 46 typeset recvfs="$2" 47 typeset offset="$3" 48 49 # create source filesystem 50 log_must zfs create $sendfs 51 # write sparse file 52 sendfile="$(get_prop mountpoint $sendfs)/data.bin" 53 log_must dd if=/dev/urandom of=$sendfile bs=1 count=1 seek=$offset 54 # send/receive the file 55 log_must zfs snapshot $sendfs@snap 56 log_must eval "zfs send $sendfs@snap | zfs receive $recvfs" 57 # compare sparse files 58 recvfile="$(get_prop mountpoint $recvfs)/data.bin" 59 log_must cmp $sendfile $recvfile $offset $offset 60 sendsz=$(stat_size $sendfile) 61 recvsz=$(stat_size $recvfile) 62 if [[ $sendsz -ne $recvsz ]]; then 63 log_fail "$sendfile ($sendsz) and $recvfile ($recvsz) differ." 64 fi 65 # cleanup 66 log_must zfs destroy -r $sendfs 67 log_must zfs destroy -r $recvfs 68} 69 70log_assert "'zfs send' should be able to send (big) sparse files correctly." 71log_onexit cleanup 72 73SENDFS="$TESTPOOL/sendfs" 74RECVFS="$TESTPOOL/recvfs" 75OFF_T_MAX="$(echo '2 ^ 40 * 8 - 1' | bc)" 76 77for i in {1..60}; do 78 offset=$(echo "2 ^ $i" | bc) 79 [[ is_32bit ]] && [[ $offset -ge $OFF_T_MAX ]] && continue; 80 write_compare_files $SENDFS $RECVFS $offset 81done 82 83log_pass "'zfs send' sends (big) sparse files correctly." 84