1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or http://www.opensolaris.org/os/licensing. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22 23# 24# Copyright 2008 Sun Microsystems, Inc. All rights reserved. 25# Use is subject to license terms. 26# 27 28# 29# Copyright (c) 2016 by Delphix. All rights reserved. 30# 31 32. $STF_SUITE/include/libtest.shlib 33 34# 35# DESCRIPTION: 36# Long name filesystem with snapshot should not break ZFS. 37# 38# STRATEGY: 39# 1. Create filesystem and snapshot. 40# 2. When the snapshot length is 256, rename the filesystem. 41# 3. Verify it does not break ZFS 42# 43 44verify_runnable "both" 45 46function cleanup 47{ 48 if datasetexists $initfs ; then 49 log_must zfs destroy -rf $initfs 50 fi 51} 52 53log_assert "Verify long name filesystem with snapshot should not break ZFS." 54log_onexit cleanup 55 56initfs=$TESTPOOL/$TESTFS/$TESTFS 57basefs=$initfs 58typeset -i ret=0 len snaplen 59while ((ret == 0)); do 60 zfs create $basefs 61 zfs snapshot $basefs@snap1 62 ret=$? 63 64 if ((ret != 0)); then 65 len=$(echo $basefs | wc -c) 66 log_note "The deeply-nested filesystem len: $len" 67 68 # 69 # Make sure there are at lease 2 characters left 70 # for snapshot name space, otherwise snapshot name 71 # is incorrect 72 # 73 if ((len >= 255)); then 74 if datasetexists $basefs; then 75 log_must zfs destroy -r $basefs 76 fi 77 basefs=${basefs%/*} 78 len=$(echo $basefs| wc -c) 79 fi 80 break 81 fi 82 83 basefs=$basefs/$TESTFS 84done 85 86# Make snapshot name length match the longest one 87((snaplen = 256 - len - 1)) # 1: @ 88snap=$(gen_dataset_name $snaplen "s") 89log_must zfs snapshot $basefs@$snap 90 91log_mustnot zfs rename $basefs ${basefs}a 92log_mustnot zfs rename $basefs ${basefs}-new 93log_mustnot zfs rename $initfs ${initfs}-new 94log_mustnot zfs rename $TESTPOOL/$TESTFS $TESTPOOL/$TESTFS-new 95 96log_pass "Verify long name filesystem with snapshot should not break ZFS." 97