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 2016 Nexenta Systems, Inc. 15# Copyright (c) 2019 by Lawrence Livermore National Security, LLC. 16# Copyright 2020 Joyent, Inc. 17# 18 19. $STF_SUITE/tests/functional/cli_root/zpool_labelclear/labelclear.cfg 20 21# DESCRIPTION: 22# Check that `zpool labelclear` only clears valid labels. Expected 23# label offsets which do not contain intact labels are left untouched. 24# 25# STRATEGY: 26# 1. Create a pool with primary, log, spare and cache devices. 27# 2. Export the pool. 28# 3. Write a known pattern over the first two device labels. 29# 4. Verify with zdb that only the last two device labels are intact. 30# 5. Verify the pool could be imported using those labels. 31# 6. Run `zpool labelclear` to destroy those last two labels. 32# 7. Verify the pool can no longer be found; let alone imported. 33# 8. Verify the pattern is intact to confirm `zpool labelclear` did 34# not write to first two label offsets. 35# 9. Verify that no valid label remain. 36# 37 38verify_runnable "global" 39 40function cleanup 41{ 42 poolexists $TESTPOOL && destroy_pool $TESTPOOL 43 rm -f $PATTERN_FILE $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4 44} 45 46log_onexit cleanup 47log_assert "zpool labelclear will only clear valid labels" 48 49PATTERN_FILE=$TEST_BASE_DIR/pattern 50 51DEVICE1="$TEST_BASE_DIR/device-1" 52DEVICE2="$TEST_BASE_DIR/device-2" 53DEVICE3="$TEST_BASE_DIR/device-3" 54DEVICE4="$TEST_BASE_DIR/device-4" 55 56log_must dd if=/dev/urandom of=$PATTERN_FILE bs=1048576 count=4 57 58log_must truncate -s $SPA_MINDEVSIZE $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4 59 60log_must zpool create -O mountpoint=none -f $TESTPOOL $DEVICE1 \ 61 log $DEVICE2 cache $DEVICE3 spare $DEVICE4 62log_must zpool export $TESTPOOL 63 64# Overwrite the first 4M of each device and verify the expected labels. 65for dev in $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4; do 66 dd if=$PATTERN_FILE of=$dev bs=1048576 conv=notrunc 67 log_must eval "zdb -l $dev | grep 'labels = 2 3'" 68done 69 70# Verify the pool could be imported using those labels. 71log_must eval "zpool import -d $TEST_BASE_DIR | grep $TESTPOOL" 72 73# Verify the last two labels on each vdev can be cleared. 74for dev in $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4; do 75 log_must zpool labelclear -f $dev 76done 77 78# Verify there is no longer a pool which can be imported. 79log_mustnot eval "zpool import -d $TEST_BASE_DIR | grep $TESTPOOL" 80 81# Verify the original pattern over the first two labels is intact 82for dev in $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4; do 83 log_must dd if=$dev bs=1048576 count=4 | cmp -- - $PATTERN_FILE 84 log_mustnot zdb -lq $dev 85done 86 87# Verify an error is reported when there are no labels to clear. 88for dev in $DEVICE1 $DEVICE2 $DEVICE3 $DEVICE4; do 89 log_mustnot zpool labelclear -f $dev 90done 91 92log_pass "zpool labelclear will only clear valid labels" 93