cli_root/zfs_snapshot/zfs_snapshot_005_neg.ksh

	zfs_snapshot_005_neg.ksh revision d583b39bfb4e2571d3e41097c5c357ffe353ad45
#!/bin/ksh -p
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
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#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
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#
# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

. $STF_SUITE/include/libtest.shlib

#
# DESCRIPTION:
#   Long name filesystem with snapshot should not break ZFS.
#
# STRATEGY:
#   1. Create filesystem and snapshot.
#   2. When the snapshot length is 256, rename the filesystem.
#   3. Verify it does not break ZFS
#

verify_runnable "both"

function cleanup
{
    if datasetexists $initfs ; then
        log_must $ZFS destroy -rf $initfs
    fi
}

log_assert "Verify long name filesystem with snapshot should not break ZFS."
log_onexit cleanup

initfs=$TESTPOOL/$TESTFS/$TESTFS
basefs=$initfs
typeset -i ret=0 len snaplen
while ((ret == 0)); do
    $ZFS create $basefs
    $ZFS snapshot $basefs@snap1
    ret=$?

    if ((ret != 0)); then
        len=$($ECHO $basefs | $WC -c)
        log_note "The deeply-nested filesystem len: $len"

        #
        # Make sure there are at lease 2 characters left
        # for snapshot name space, otherwise snapshot name
        # is incorrect
        #
        if ((len >= 255)); then
            if datasetexists $basefs; then
                log_must $ZFS destroy -r $basefs
            fi
            basefs=${basefs%/*}
            len=$($ECHO $basefs| $WC -c)
        fi
        break
    fi

    basefs=$basefs/$TESTFS
done

# Make snapshot name length match the longest one
((snaplen = 256 - len - 1)) # 1: @
snap=$(gen_dataset_name $snaplen "s")
log_must $ZFS snapshot $basefs@$snap

log_mustnot $ZFS rename $basefs ${basefs}a
log_mustnot $ZFS rename $basefs ${basefs}-new
log_mustnot $ZFS rename $initfs ${initfs}-new
log_mustnot $ZFS rename $TESTPOOL/$TESTFS $TESTPOOL/$TESTFS-new

log_pass "Verify long name filesystem with snapshot should not break ZFS."