111f6fc50SMax Reitz#!/usr/bin/env bash 211f6fc50SMax Reitz# 311f6fc50SMax Reitz# Tests for rebasing COW images that require zero cluster support 411f6fc50SMax Reitz# 511f6fc50SMax Reitz# Copyright (C) 2019 Red Hat, Inc. 611f6fc50SMax Reitz# 711f6fc50SMax Reitz# This program is free software; you can redistribute it and/or modify 811f6fc50SMax Reitz# it under the terms of the GNU General Public License as published by 911f6fc50SMax Reitz# the Free Software Foundation; either version 2 of the License, or 1011f6fc50SMax Reitz# (at your option) any later version. 1111f6fc50SMax Reitz# 1211f6fc50SMax Reitz# This program is distributed in the hope that it will be useful, 1311f6fc50SMax Reitz# but WITHOUT ANY WARRANTY; without even the implied warranty of 1411f6fc50SMax Reitz# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1511f6fc50SMax Reitz# GNU General Public License for more details. 1611f6fc50SMax Reitz# 1711f6fc50SMax Reitz# You should have received a copy of the GNU General Public License 1811f6fc50SMax Reitz# along with this program. If not, see <http://www.gnu.org/licenses/>. 1911f6fc50SMax Reitz# 2011f6fc50SMax Reitz 2111f6fc50SMax Reitz# creator 2211f6fc50SMax Reitzowner=mreitz@redhat.com 2311f6fc50SMax Reitz 2411f6fc50SMax Reitzseq=$(basename $0) 2511f6fc50SMax Reitzecho "QA output created by $seq" 2611f6fc50SMax Reitz 2711f6fc50SMax Reitzstatus=1 # failure is the default! 2811f6fc50SMax Reitz 2911f6fc50SMax Reitz_cleanup() 3011f6fc50SMax Reitz{ 3111f6fc50SMax Reitz _cleanup_test_img 32f91ecbd7SMax Reitz _rm_test_img "$TEST_IMG.base_new" 3311f6fc50SMax Reitz} 3411f6fc50SMax Reitztrap "_cleanup; exit \$status" 0 1 2 3 15 3511f6fc50SMax Reitz 3611f6fc50SMax Reitz# get standard environment, filters and checks 3711f6fc50SMax Reitz. ./common.rc 3811f6fc50SMax Reitz. ./common.filter 3911f6fc50SMax Reitz. ./common.pattern 4011f6fc50SMax Reitz 4111f6fc50SMax Reitz# Currently only qcow2 and qed support rebasing, and only qcow2 v3 has 4211f6fc50SMax Reitz# zero cluster support 4311f6fc50SMax Reitz_supported_fmt qcow2 4411f6fc50SMax Reitz_unsupported_imgopts 'compat=0.10' 4511f6fc50SMax Reitz_supported_proto file 4611f6fc50SMax Reitz_supported_os Linux 4711f6fc50SMax Reitz 4811f6fc50SMax ReitzCLUSTER_SIZE=65536 4911f6fc50SMax Reitz 5011f6fc50SMax Reitzecho 5111f6fc50SMax Reitzecho "=== Test rebase without input base ===" 5211f6fc50SMax Reitzecho 5311f6fc50SMax Reitz 5411f6fc50SMax Reitz# Cluster allocations to be tested: 5511f6fc50SMax Reitz# 5611f6fc50SMax Reitz# Backing (new) 11 -- 11 -- 11 -- 5711f6fc50SMax Reitz# COW image 22 22 11 11 -- -- 5811f6fc50SMax Reitz# 5911f6fc50SMax Reitz# Expected result: 6011f6fc50SMax Reitz# 6111f6fc50SMax Reitz# COW image 22 22 11 11 00 -- 6211f6fc50SMax Reitz# 6311f6fc50SMax Reitz# (Cluster 2 might be "--" after the rebase, too, but rebase just 6411f6fc50SMax Reitz# compares the new backing file to the old one and disregards the 6511f6fc50SMax Reitz# overlay. Therefore, it will never discard overlay clusters.) 6611f6fc50SMax Reitz 6711f6fc50SMax Reitz_make_test_img $((6 * CLUSTER_SIZE)) 6811f6fc50SMax ReitzTEST_IMG="$TEST_IMG.base_new" _make_test_img $((6 * CLUSTER_SIZE)) 6911f6fc50SMax Reitz 7011f6fc50SMax Reitzecho 7111f6fc50SMax Reitz 7211f6fc50SMax Reitz$QEMU_IO "$TEST_IMG" \ 7311f6fc50SMax Reitz -c "write -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ 7411f6fc50SMax Reitz -c "write -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ 7511f6fc50SMax Reitz | _filter_qemu_io 7611f6fc50SMax Reitz 7711f6fc50SMax Reitz$QEMU_IO "$TEST_IMG.base_new" \ 7811f6fc50SMax Reitz -c "write -P 0x11 $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ 7911f6fc50SMax Reitz -c "write -P 0x11 $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ 8011f6fc50SMax Reitz -c "write -P 0x11 $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ 8111f6fc50SMax Reitz | _filter_qemu_io 8211f6fc50SMax Reitz 8311f6fc50SMax Reitzecho 8411f6fc50SMax Reitz 8511f6fc50SMax Reitz# This should be a no-op 8611f6fc50SMax Reitz$QEMU_IMG rebase -b "" "$TEST_IMG" 8711f6fc50SMax Reitz 8811f6fc50SMax Reitz# Verify the data is correct 8911f6fc50SMax Reitz$QEMU_IO "$TEST_IMG" \ 9011f6fc50SMax Reitz -c "read -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ 9111f6fc50SMax Reitz -c "read -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ 9211f6fc50SMax Reitz -c "read -P 0x00 $((4 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ 9311f6fc50SMax Reitz | _filter_qemu_io 9411f6fc50SMax Reitz 9511f6fc50SMax Reitzecho 9611f6fc50SMax Reitz 9711f6fc50SMax Reitz# Verify the allocation status (first four cluster should be allocated 9811f6fc50SMax Reitz# in TEST_IMG, clusters 4 and 5 should be unallocated (marked as zero 9911f6fc50SMax Reitz# clusters here because there is no backing file)) 10011f6fc50SMax Reitz$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map 10111f6fc50SMax Reitz 10211f6fc50SMax Reitzecho 10311f6fc50SMax Reitz 104*b66ff2c2SEric Blake$QEMU_IMG rebase -b "$TEST_IMG.base_new" -F $IMGFMT "$TEST_IMG" 10511f6fc50SMax Reitz 10611f6fc50SMax Reitz# Verify the data is correct 10711f6fc50SMax Reitz$QEMU_IO "$TEST_IMG" \ 10811f6fc50SMax Reitz -c "read -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ 10911f6fc50SMax Reitz -c "read -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ 11011f6fc50SMax Reitz -c "read -P 0x00 $((4 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ 11111f6fc50SMax Reitz | _filter_qemu_io 11211f6fc50SMax Reitz 11311f6fc50SMax Reitzecho 11411f6fc50SMax Reitz 11511f6fc50SMax Reitz# Verify the allocation status (first four cluster should be allocated 11611f6fc50SMax Reitz# in TEST_IMG, cluster 4 should be zero, and cluster 5 should be 11711f6fc50SMax Reitz# unallocated (signified by '"depth": 1')) 11811f6fc50SMax Reitz$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map 11911f6fc50SMax Reitz 12011f6fc50SMax Reitz 12111f6fc50SMax Reitz# success, all done 12211f6fc50SMax Reitzecho "*** done" 12311f6fc50SMax Reitzrm -f $seq.full 12411f6fc50SMax Reitzstatus=0 125