101 lines
3.2 KiB
Bash
Executable file
101 lines
3.2 KiB
Bash
Executable file
#!/usr/bin/env bash
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# group: rw quick
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#
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# Test qemu-nbd vs. unaligned images
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#
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# Copyright (C) 2018-2019 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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seq="$(basename $0)"
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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rm -f "$TEST_DIR/server.log"
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nbd_server_stop
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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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. ./common.nbd
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_supported_fmt raw
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_supported_proto nbd
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_supported_os Linux
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_require_command QEMU_NBD
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# can't use _make_test_img, because qemu-img rounds image size up,
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# and because we want to use Unix socket rather than TCP port. Likewise,
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# we have to redirect TEST_IMG to our server.
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# This tests that we can deal with the hole at the end of an unaligned
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# raw file (either because the server doesn't advertise alignment too
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# large, or because the client ignores the server's noncompliance - even
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# though we can't actually wire iotests into checking trace messages).
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printf %01000d 0 > "$TEST_IMG_FILE"
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TEST_IMG="nbd:unix:$nbd_unix_socket"
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echo
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echo "=== Exporting unaligned raw image, natural alignment ==="
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echo
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nbd_server_start_unix_socket -f $IMGFMT "$TEST_IMG_FILE"
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$QEMU_NBD_PROG --list -k $nbd_unix_socket | _filter_qemu_nbd_exports
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$QEMU_IMG map -f raw --output=json "$TEST_IMG" | _filter_qemu_img_map
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$QEMU_IO -f raw -c map "$TEST_IMG"
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nbd_server_stop
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echo
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echo "=== Exporting unaligned raw image, forced server sector alignment ==="
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echo
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# Intentionally omit '-f' to force image probing, which in turn forces
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# sector alignment, here at the server.
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nbd_server_start_unix_socket "$TEST_IMG_FILE" 2> "$TEST_DIR/server.log"
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$QEMU_NBD_PROG --list -k $nbd_unix_socket | _filter_qemu_nbd_exports
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$QEMU_IMG map -f raw --output=json "$TEST_IMG" | _filter_qemu_img_map
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$QEMU_IO -f raw -c map "$TEST_IMG"
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nbd_server_stop
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cat "$TEST_DIR/server.log" | _filter_testdir
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echo
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echo "=== Exporting unaligned raw image, forced client sector alignment ==="
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echo
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# Now force sector alignment at the client.
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nbd_server_start_unix_socket -f $IMGFMT "$TEST_IMG_FILE"
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$QEMU_NBD_PROG --list -k $nbd_unix_socket | _filter_qemu_nbd_exports
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$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
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$QEMU_IO -c map "$TEST_IMG"
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nbd_server_stop
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# Not tested yet: we also want to ensure that qemu as NBD client does
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# not access beyond the end of a server's advertised unaligned size:
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# nbdkit -U - memory size=513 --run 'qemu-io -f raw -c "r 512 512" $nbd'
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# However, since qemu as server always rounds up to a sector alignment,
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# we would have to use nbdkit to provoke the current client failures.
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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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