1 #!/bin/bash 2 # 3 # Test change-backing-file command 4 # 5 # Copyright (C) 2017 Red Hat, Inc. 6 # 7 # This program is free software; you can redistribute it and/or modify 8 # it under the terms of the GNU General Public License as published by 9 # the Free Software Foundation; either version 2 of the License, or 10 # (at your option) any later version. 11 # 12 # This program is distributed in the hope that it will be useful, 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 # GNU General Public License for more details. 16 # 17 # You should have received a copy of the GNU General Public License 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. 19 # 20 21 # creator 22 owner=kwolf@redhat.com 23 24 seq=`basename $0` 25 echo "QA output created by $seq" 26 27 here=`pwd` 28 status=1 # failure is the default! 29 30 _cleanup() 31 { 32 _cleanup_test_img 33 rm -f "$TEST_IMG.mid" 34 } 35 trap "_cleanup; exit \$status" 0 1 2 3 15 36 37 # get standard environment, filters and checks 38 . ./common.rc 39 . ./common.filter 40 41 _supported_fmt qcow2 42 _supported_proto file 43 _supported_os Linux 44 45 function do_run_qemu() 46 { 47 echo Testing: "$@" 48 $QEMU -nographic -qmp-pretty stdio -serial none "$@" 49 echo 50 } 51 52 function run_qemu() 53 { 54 do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_imgfmt | _filter_qemu \ 55 | _filter_qmp | _filter_qemu_io \ 56 | _filter_generated_node_ids 57 } 58 59 size=64M 60 TEST_IMG="$TEST_IMG.base" _make_test_img $size 61 TEST_IMG="$TEST_IMG.mid" _make_test_img -b "$TEST_IMG.base" 62 _make_test_img -b "$TEST_IMG.mid" 63 64 echo 65 echo "Change backing file of mid (opened read-only)" 66 echo 67 68 run_qemu -drive if=none,file="$TEST_IMG",backing.node-name=mid <<EOF 69 {"execute":"qmp_capabilities"} 70 {"execute":"change-backing-file", "arguments":{"device":"none0","image-node-name":"mid","backing-file":"/dev/null"}} 71 {"execute":"quit"} 72 EOF 73 74 TEST_IMG="$TEST_IMG.mid" _img_info 75 76 echo 77 echo "Change backing file of top (opened writable)" 78 echo 79 80 TEST_IMG="$TEST_IMG.mid" _make_test_img -b "$TEST_IMG.base" 81 82 run_qemu -drive if=none,file="$TEST_IMG",node-name=top <<EOF 83 {"execute":"qmp_capabilities"} 84 {"execute":"change-backing-file", "arguments":{"device":"none0","image-node-name":"top","backing-file":"/dev/null"}} 85 {"execute":"quit"} 86 EOF 87 88 _img_info 89 90 # success, all done 91 echo "*** done" 92 rm -f $seq.full 93 status=0 94