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 https://opensource.org/licenses/CDDL-1.0. 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 datasetexists $initfs && destroy_dataset $initfs -rf 49} 50 51log_assert "Verify long name filesystem with snapshot should not break ZFS." 52log_onexit cleanup 53 54initfs=$TESTPOOL/$TESTFS/$TESTFS 55basefs=$initfs 56typeset -i ret=0 len snaplen 57while ((ret == 0)); do 58 zfs create $basefs 59 zfs snapshot $basefs@snap1 60 ret=$? 61 62 if ((ret != 0)); then 63 len=$(( ${#basefs} + 1 )) # +1 for NUL 64 log_note "The deeply-nested filesystem len: $len" 65 66 # 67 # Make sure there are at lease 2 characters left 68 # for snapshot name space, otherwise snapshot name 69 # is incorrect 70 # 71 if ((len >= 255)); then 72 datasetexists $basefs && destroy_dataset $basefs -r 73 basefs=${basefs%/*} 74 len=$(( ${#basefs} + 1 )) 75 fi 76 break 77 fi 78 79 basefs=$basefs/$TESTFS 80done 81 82# Make snapshot name length match the longest one 83((snaplen = 256 - len - 1)) # 1: @ 84snap=$(gen_dataset_name $snaplen "s") 85log_must zfs snapshot $basefs@$snap 86 87log_mustnot zfs rename $basefs ${basefs}a 88log_mustnot zfs rename $basefs ${basefs}-new 89log_mustnot zfs rename $initfs ${initfs}-new 90log_mustnot zfs rename $TESTPOOL/$TESTFS $TESTPOOL/$TESTFS-new 91 92log_pass "Verify long name filesystem with snapshot should not break ZFS." 93