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