After committing the qcow2 image contents into the base image, qemu-img will call bdrv_make_empty to drop the payload in the layered image. When this is done for qcow2 images, it blows away the LUKS encryption header, making the resulting image unusable. There are two codepaths for emptying a qcow2 image, and the second (slower) codepath leaves the LUKS header intact, so force use of that codepath. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
189 lines
5.8 KiB
Bash
189 lines
5.8 KiB
Bash
#!/bin/bash
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#
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# Copyright (C) 2009 Red Hat, Inc.
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# Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would 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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#
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# standard filters
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#
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# ctime(3) dates
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#
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_filter_date()
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{
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sed \
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-e 's/[A-Z][a-z][a-z] [A-z][a-z][a-z] *[0-9][0-9]* [0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9][0-9][0-9][0-9]$/DATE/'
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}
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_filter_generated_node_ids()
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{
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sed -re 's/\#block[0-9]{3,}/NODE_NAME/'
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}
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# replace occurrences of the actual TEST_DIR value with TEST_DIR
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_filter_testdir()
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{
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sed -e "s#$TEST_DIR/#TEST_DIR/#g"
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}
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# replace occurrences of the actual IMGFMT value with IMGFMT
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_filter_imgfmt()
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{
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sed -e "s#$IMGFMT#IMGFMT#g"
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}
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# Replace error message when the format is not supported and delete
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# the output lines after the first one
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_filter_qemu_img_check()
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{
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sed -e '/allocated.*fragmented.*compressed clusters/d' \
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-e 's/qemu-img: This image format does not support checks/No errors were found on the image./' \
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-e '/Image end offset: [0-9]\+/d'
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}
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# Removes \r from messages
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_filter_win32()
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{
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sed -e 's/\r//g'
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}
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# sanitize qemu-io output
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_filter_qemu_io()
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{
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_filter_win32 | sed -e "s/[0-9]* ops\; [0-9/:. sec]* ([0-9/.inf]* [EPTGMKiBbytes]*\/sec and [0-9/.inf]* ops\/sec)/X ops\; XX:XX:XX.X (XXX YYY\/sec and XXX ops\/sec)/" \
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-e "s/: line [0-9][0-9]*: *[0-9][0-9]*\( Aborted\| Killed\)/:\1/" \
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-e "s/qemu-io> //g"
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}
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# replace occurrences of QEMU_PROG with "qemu"
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_filter_qemu()
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{
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sed -e "s#\\(^\\|(qemu) \\)$(basename $QEMU_PROG):#\1QEMU_PROG:#" \
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-e 's#^QEMU [0-9]\+\.[0-9]\+\.[0-9]\+ monitor#QEMU X.Y.Z monitor#' \
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-e '/main-loop: WARNING: I\/O thread spun for [0-9]\+ iterations/d' \
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-e $'s#\r##' # QEMU monitor uses \r\n line endings
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}
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# replace problematic QMP output like timestamps
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_filter_qmp()
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{
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_filter_win32 | \
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sed -e 's#\("\(micro\)\?seconds": \)[0-9]\+#\1 TIMESTAMP#g' \
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-e 's#^{"QMP":.*}$#QMP_VERSION#' \
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-e '/^ "QMP": {\s*$/, /^ }\s*$/ c\' \
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-e ' QMP_VERSION'
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}
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# readline makes HMP command strings so long that git complains
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_filter_hmp()
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{
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sed -e $'s/^\\((qemu) \\)\\?.*\e\\[D/\\1/g' \
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-e $'s/\e\\[K//g'
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}
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# replace block job offset
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_filter_block_job_offset()
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{
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sed -e 's/, "offset": [0-9]\+,/, "offset": OFFSET,/'
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}
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# replace block job len
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_filter_block_job_len()
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{
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sed -e 's/, "len": [0-9]\+,/, "len": LEN,/g'
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}
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# replace actual image size (depends on the host filesystem)
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_filter_actual_image_size()
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{
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sed -s 's/\("actual-size":\s*\)[0-9]\+/\1SIZE/g'
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}
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# replace driver-specific options in the "Formatting..." line
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_filter_img_create()
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{
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sed -e "s#$IMGPROTO:$TEST_DIR#TEST_DIR#g" \
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-e "s#$TEST_DIR#TEST_DIR#g" \
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-e "s#$IMGFMT#IMGFMT#g" \
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-e 's#nbd:127.0.0.1:10810#TEST_DIR/t.IMGFMT#g' \
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-e "s# encryption=off##g" \
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-e "s# cluster_size=[0-9]\\+##g" \
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-e "s# table_size=[0-9]\\+##g" \
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-e "s# compat=[^ ]*##g" \
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-e "s# compat6=\\(on\\|off\\)##g" \
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-e "s# static=\\(on\\|off\\)##g" \
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-e "s# zeroed_grain=\\(on\\|off\\)##g" \
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-e "s# subformat='[^']*'##g" \
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-e "s# adapter_type='[^']*'##g" \
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-e "s# hwversion=[^ ]*##g" \
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-e "s# lazy_refcounts=\\(on\\|off\\)##g" \
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-e "s# block_size=[0-9]\\+##g" \
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-e "s# block_state_zero=\\(on\\|off\\)##g" \
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-e "s# log_size=[0-9]\\+##g" \
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-e "s# refcount_bits=[0-9]\\+##g" \
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-e "s# key-secret=[a-zA-Z0-9]\\+##g" \
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-e "s# iter-time=[0-9]\\+##g"
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}
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_filter_img_info()
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{
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sed -e "s#$IMGPROTO:$TEST_DIR#TEST_DIR#g" \
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-e "s#$TEST_DIR#TEST_DIR#g" \
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-e "s#$IMGFMT#IMGFMT#g" \
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-e 's#nbd://127.0.0.1:10810$#TEST_DIR/t.IMGFMT#g' \
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-e 's#json.*vdisk-id.*vxhs"}}#TEST_DIR/t.IMGFMT#' \
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-e "/encrypted: yes/d" \
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-e "/cluster_size: [0-9]\\+/d" \
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-e "/table_size: [0-9]\\+/d" \
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-e "/compat: '[^']*'/d" \
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-e "/compat6: \\(on\\|off\\)/d" \
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-e "/static: \\(on\\|off\\)/d" \
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-e "/zeroed_grain: \\(on\\|off\\)/d" \
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-e "/subformat: '[^']*'/d" \
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-e "/adapter_type: '[^']*'/d" \
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-e "/hwversion: '[^']*'/d" \
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-e "/lazy_refcounts: \\(on\\|off\\)/d" \
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-e "/block_size: [0-9]\\+/d" \
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-e "/block_state_zero: \\(on\\|off\\)/d" \
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-e "/log_size: [0-9]\\+/d" \
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-e "s/iters: [0-9]\\+/iters: 1024/" \
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-e "s/uuid: [-a-f0-9]\\+/uuid: 00000000-0000-0000-0000-000000000000/"
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}
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# filter out offsets and file names from qemu-img map; good for both
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# human and json output
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_filter_qemu_img_map()
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{
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sed -e 's/\([0-9a-fx]* *[0-9a-fx]* *\)[0-9a-fx]* */\1/g' \
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-e 's/"offset": [0-9]\+/"offset": OFFSET/g' \
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-e 's/Mapped to *//' | _filter_testdir | _filter_imgfmt
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}
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_filter_nbd()
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{
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# nbd.c error messages contain function names and line numbers that are
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# prone to change. Message ordering depends on timing between send and
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# receive callbacks sometimes, making them unreliable.
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#
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# Filter out the TCP port number since this changes between runs.
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sed -e '/nbd\/.*\.c:/d' \
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-e 's#127\.0\.0\.1:[0-9]*#127.0.0.1:PORT#g' \
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-e "s#?socket=$TEST_DIR#?socket=TEST_DIR#g" \
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-e 's#\(foo\|PORT/\?\|.sock\): Failed to .*$#\1#'
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}
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# make sure this script returns success
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true
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