mirror of https://gitee.com/openkylin/qemu.git
97 lines
2.6 KiB
Bash
Executable File
97 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# group: rw auto backing
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#
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# Test that qemu-img info --backing-chain detects infinite loops
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#
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# Copyright (C) 2012 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=stefanha@redhat.com
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seq=`basename $0`
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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for img in "$TEST_IMG".[123].base; do
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_rm_test_img "$img"
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done
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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# Any format supporting backing files
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_supported_fmt qcow2 qed
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_supported_proto file
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size=128M
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_make_test_img $size
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$QEMU_IMG rebase -u -b "$TEST_IMG" -F $IMGFMT "$TEST_IMG"
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echo
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echo "== backing file references self =="
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_img_info --backing-chain
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_make_test_img $size
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mv "$TEST_IMG" "$TEST_IMG.base"
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_make_test_img -b "$TEST_IMG.base" -F $IMGFMT $size
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$QEMU_IMG rebase -u -b "$TEST_IMG" -F $IMGFMT "$TEST_IMG.base"
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echo
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echo "== parent references self =="
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_img_info --backing-chain
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_make_test_img $size
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mv "$TEST_IMG" "$TEST_IMG.1.base"
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_make_test_img -b "$TEST_IMG.1.base" -F $IMGFMT $size
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mv "$TEST_IMG" "$TEST_IMG.2.base"
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_make_test_img -b "$TEST_IMG.2.base" -F $IMGFMT $size
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mv "$TEST_IMG" "$TEST_IMG.3.base"
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_make_test_img -b "$TEST_IMG.3.base" -F $IMGFMT $size
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$QEMU_IMG rebase -u -b "$TEST_IMG.2.base" -F $IMGFMT "$TEST_IMG.1.base"
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echo
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echo "== ancestor references another ancestor =="
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_img_info --backing-chain
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_make_test_img $size
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mv "$TEST_IMG" "$TEST_IMG.1.base"
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_make_test_img -b "$TEST_IMG.1.base" -F $IMGFMT $size
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mv "$TEST_IMG" "$TEST_IMG.2.base"
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_make_test_img -b "$TEST_IMG.2.base" -F $IMGFMT $size
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echo
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echo "== finite chain of length 3 (human) =="
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# Exclude backing format, since qed differs from qcow2 on what gets stored
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_img_info --backing-chain | grep -v '^backing file format:'
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echo
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echo "== finite chain of length 3 (json) =="
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_img_info --backing-chain --output=json | grep -v 'backing-filename-format'
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
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