1#!/usr/local/bin/ksh93 -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. $STF_SUITE/include/libtest.kshlib 28 29################################################################################# 30# 31# __stc_assertion_start 32# 33# ID: zfs_snapshot_004_neg 34# 35# DESCRIPTION: 36# Verify recursive snapshotting could not break ZFS. 37# 38# STRATEGY: 39# 1. Create deeply-nested filesystems until it is too long to create snap 40# 2. Verify zfs snapshot -r pool@snap will not break ZFS 41# 42# TESTABILITY: explicit 43# 44# TEST_AUTOMATION_LEVEL: automated 45# 46# CODING_STATUS: COMPLETED (2007-08-08) 47# 48# __stc_assertion_end 49# 50################################################################################ 51 52verify_runnable "both" 53 54function cleanup 55{ 56 if datasetexists $initfs ; then 57 log_must $ZFS destroy -rf $initfs 58 fi 59} 60 61log_assert "Verify recursive snapshotting could not break ZFS." 62log_onexit cleanup 63 64initfs=$TESTPOOL/$TESTFS/$TESTFS 65basefs=$initfs 66typeset -i ret=0 len snaplen 67while ((ret == 0)); do 68 $ZFS create $basefs 69 $ZFS snapshot $basefs@snap1 70 ret=$? 71 72 len=$($ECHO $basefs| $WC -c) 73 if ((ret != 0)); then 74 log_note "The deeply-nested filesystem len: $len" 75 # 76 # Make sure there are at lease 2 characters left 77 # for snapshot name space, otherwise snapshot name 78 # is incorrect 79 # 80 if ((len >= 255)); then 81 if datasetexists $basefs; then 82 log_must $ZFS destroy -r $basefs 83 fi 84 basefs=${basefs%/*} 85 len=$($ECHO $basefs| $WC -c) 86 fi 87 break 88 else 89 log_note "ZFS snapshot suceeded. len: $len" 90 fi 91 92 basefs=$basefs/$TESTFS 93done 94 95# Make snapshot name is longer than the max length 96((snaplen = 256 - len + 10)) 97snap=$(gen_dataset_name $snaplen "s") 98log_mustnot $ZFS snapshot -r $TESTPOOL@$snap 99 100log_must datasetnonexists $TESTPOOL@$snap 101while [[ $basefs != $TESTPOOL ]]; do 102 log_must datasetnonexists $basefs@$snap 103 basefs=${basefs%/*} 104done 105 106log_pass "Verify recursive snapshotting could not break ZFS." 107