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#!/usr/bin/env bash
# nbd client library in userspace
# Copyright Red Hat
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Use nbdkit-pattern-plugin to test we can read from the correct place
# in the file, essentially a test of data integrity.
. ../tests/functions.sh
set -e
set -x
requires_fuse
requires $DD --version
requires $DD iflag=count_bytes,skip_bytes </dev/null
requires hexdump -C /dev/null
requires $NBDKIT --version
requires $NBDKIT pattern --version
# Difficult to arrange for this test to be run this test under
# valgrind, so don't bother.
if [ "x$LIBNBD_VALGRIND" = "x1" ]; then
echo "$0: test skipped under valgrind"
exit 77
fi
mp=test-pattern.d
out=test-pattern.out
pidfile=test-pattern.pid
cleanup_fn fusermount3 -u $mp
cleanup_fn rm -rf $mp $out $pidfile
mkdir $mp
$VG nbdfuse -P $pidfile $mp [ $NBDKIT --exit-with-parent pattern size=1G ] &
wait_for_pidfile nbdfuse $pidfile
ls -al $mp
# Read from various places in the file and ensure what we read is
# correct.
$DD if=$mp/nbd skip=4096 count=128 iflag=count_bytes,skip_bytes |
hexdump -C > $out
cat $out
if [ "$(cat $out)" != '00000000 00 00 00 00 00 00 10 00 00 00 00 00 00 00 10 08 |................|
00000010 00 00 00 00 00 00 10 10 00 00 00 00 00 00 10 18 |................|
00000020 00 00 00 00 00 00 10 20 00 00 00 00 00 00 10 28 |....... .......(|
00000030 00 00 00 00 00 00 10 30 00 00 00 00 00 00 10 38 |.......0.......8|
00000040 00 00 00 00 00 00 10 40 00 00 00 00 00 00 10 48 |.......@.......H|
00000050 00 00 00 00 00 00 10 50 00 00 00 00 00 00 10 58 |.......P.......X|
00000060 00 00 00 00 00 00 10 60 00 00 00 00 00 00 10 68 |.......`.......h|
00000070 00 00 00 00 00 00 10 70 00 00 00 00 00 00 10 78 |.......p.......x|
00000080' ]; then
echo "$0: error: pattern data did not match expected"
exit 1
fi
$DD if=$mp/nbd skip=1000000 count=128 iflag=count_bytes,skip_bytes |
hexdump -C > $out
cat $out
if [ "$(cat $out)" != '00000000 00 00 00 00 00 0f 42 40 00 00 00 00 00 0f 42 48 |......B@......BH|
00000010 00 00 00 00 00 0f 42 50 00 00 00 00 00 0f 42 58 |......BP......BX|
00000020 00 00 00 00 00 0f 42 60 00 00 00 00 00 0f 42 68 |......B`......Bh|
00000030 00 00 00 00 00 0f 42 70 00 00 00 00 00 0f 42 78 |......Bp......Bx|
00000040 00 00 00 00 00 0f 42 80 00 00 00 00 00 0f 42 88 |......B.......B.|
00000050 00 00 00 00 00 0f 42 90 00 00 00 00 00 0f 42 98 |......B.......B.|
00000060 00 00 00 00 00 0f 42 a0 00 00 00 00 00 0f 42 a8 |......B.......B.|
00000070 00 00 00 00 00 0f 42 b0 00 00 00 00 00 0f 42 b8 |......B.......B.|
00000080' ]; then
echo "$0: error: pattern data did not match expected"
exit 1
fi
$DD if=$mp/nbd skip=0 count=128 iflag=count_bytes,skip_bytes |
hexdump -C > $out
cat $out
if [ "$(cat $out)" != '00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 |................|
00000010 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 18 |................|
00000020 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 28 |....... .......(|
00000030 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 38 |.......0.......8|
00000040 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 48 |.......@.......H|
00000050 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 58 |.......P.......X|
00000060 00 00 00 00 00 00 00 60 00 00 00 00 00 00 00 68 |.......`.......h|
00000070 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 78 |.......p.......x|
00000080' ]; then
echo "$0: error: pattern data did not match expected"
exit 1
fi
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