#!/usr/bin/env bash # # Test reading dirty bitmap over NBD # # Copyright (C) 2018 Red Hat, Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # seq="$(basename $0)" echo "QA output created by $seq" status=1 # failure is the default! _cleanup() { nbd_server_stop _cleanup_test_img _cleanup_qemu rm -f "$TEST_DIR/nbd" } trap "_cleanup; exit \$status" 0 1 2 3 15 # get standard environment, filters and checks . ./common.rc . ./common.filter . ./common.qemu . ./common.nbd _supported_fmt qcow2 _supported_proto file # uses NBD as well _supported_os Linux # Persistent dirty bitmaps require compat=1.1 _unsupported_imgopts 'compat=0.10' do_run_qemu() { echo Testing: "$@" $QEMU -nographic -qmp stdio -serial none "$@" echo } run_qemu() { do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp \ | _filter_qemu | _filter_imgfmt \ | _filter_actual_image_size } echo echo "=== Create partially sparse image, then add dirty bitmaps ===" echo # Two bitmaps, to contrast granularity issues # Also note that b will be disabled, while b2 is left enabled, to # check for read-only interactions _make_test_img -o cluster_size=4k 4M $QEMU_IO -c 'w -P 0x11 1M 2M' "$TEST_IMG" | _filter_qemu_io run_qemu < >(_filter_nbd) # Intentionally provoke some errors as well, to check error handling silent= _send_qemu_cmd $QEMU_HANDLE '{"execute":"qmp_capabilities"}' "return" _send_qemu_cmd $QEMU_HANDLE '{"execute":"blockdev-add", "arguments":{"driver":"qcow2", "node-name":"n", "file":{"driver":"file", "filename":"'"$TEST_IMG"'"}}}' "return" _send_qemu_cmd $QEMU_HANDLE '{"execute":"block-dirty-bitmap-disable", "arguments":{"node":"n", "name":"b"}}' "return" _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", "arguments":{"device":"n"}}' "error" # Attempt add without server _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-start", "arguments":{"addr":{"type":"unix", "data":{"path":"'"$TEST_DIR/nbd"'"}}}}' "return" _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-start", "arguments":{"addr":{"type":"unix", "data":{"path":"'"$TEST_DIR/nbd"1'"}}}}' "error" # Attempt second server $QEMU_NBD_PROG -L -k "$TEST_DIR/nbd" _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", "arguments":{"device":"n", "bitmap":"b"}}' "return" _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", "arguments":{"device":"nosuch"}}' "error" # Attempt to export missing node _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", "arguments":{"device":"n"}}' "error" # Attempt to export same name twice _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", "arguments":{"device":"n", "name":"n2", "bitmap":"b2"}}' "error" # enabled vs. read-only _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", "arguments":{"device":"n", "name":"n2", "bitmap":"b3"}}' "error" # Missing bitmap _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", "arguments":{"device":"n", "name":"n2", "writable":true, "bitmap":"b2"}}' "return" $QEMU_NBD_PROG -L -k "$TEST_DIR/nbd" echo echo "=== Contrast normal status to large granularity dirty-bitmap ===" echo QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT IMG="driver=nbd,export=n,server.type=unix,server.path=$TEST_DIR/nbd" $QEMU_IO -r -c 'r -P 0x22 512 512' -c 'r -P 0 512k 512k' -c 'r -P 0x11 1m 1m' \ -c 'r -P 0x33 2m 2m' --image-opts "$IMG" | _filter_qemu_io $QEMU_IMG map --output=json --image-opts \ "$IMG" | _filter_qemu_img_map $QEMU_IMG map --output=json --image-opts \ "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b" | _filter_qemu_img_map echo echo "=== Contrast to small granularity dirty-bitmap ===" echo IMG="driver=nbd,export=n2,server.type=unix,server.path=$TEST_DIR/nbd" $QEMU_IMG map --output=json --image-opts \ "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map echo echo "=== End qemu NBD server ===" echo _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-remove", "arguments":{"name":"n"}}' "return" _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-remove", "arguments":{"name":"n2"}}' "return" _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-remove", "arguments":{"name":"n2"}}' "error" # Attempt duplicate clean _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-stop"}' "return" _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-stop"}' "error" # Again _send_qemu_cmd $QEMU_HANDLE '{"execute":"quit"}' "return" echo echo "=== Use qemu-nbd as server ===" echo nbd_server_start_unix_socket -r -f $IMGFMT -B b "$TEST_IMG" IMG="driver=nbd,server.type=unix,server.path=$nbd_unix_socket" $QEMU_IMG map --output=json --image-opts \ "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b" | _filter_qemu_img_map nbd_server_start_unix_socket -f $IMGFMT -B b2 "$TEST_IMG" IMG="driver=nbd,server.type=unix,server.path=$nbd_unix_socket" $QEMU_IMG map --output=json --image-opts \ "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map # success, all done echo '*** done' rm -f $seq.full status=0