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Diffstat (limited to 'qemu/tests/qemu-iotests/060')
| -rwxr-xr-x | qemu/tests/qemu-iotests/060 | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/qemu/tests/qemu-iotests/060 b/qemu/tests/qemu-iotests/060 deleted file mode 100755 index 8e95c450e..000000000 --- a/qemu/tests/qemu-iotests/060 +++ /dev/null @@ -1,248 +0,0 @@ -#!/bin/bash -# -# Test case for image corruption (overlapping data structures) in qcow2 -# -# Copyright (C) 2013 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 <http://www.gnu.org/licenses/>. -# - -# creator -owner=mreitz@redhat.com - -seq="$(basename $0)" -echo "QA output created by $seq" - -here="$PWD" -status=1 # failure is the default! - -_cleanup() -{ - _cleanup_test_img -} -trap "_cleanup; exit \$status" 0 1 2 3 15 - -# get standard environment, filters and checks -. ./common.rc -. ./common.filter - -# This tests qocw2-specific low-level functionality -_supported_fmt qcow2 -_supported_proto file -_supported_os Linux - -rt_offset=65536 # 0x10000 (XXX: just an assumption) -rb_offset=131072 # 0x20000 (XXX: just an assumption) -l1_offset=196608 # 0x30000 (XXX: just an assumption) -l2_offset=262144 # 0x40000 (XXX: just an assumption) -l2_offset_after_snapshot=524288 # 0x80000 (XXX: just an assumption) - -IMGOPTS="compat=1.1" - -OPEN_RW="open -o overlap-check=all $TEST_IMG" -# Overlap checks are done before write operations only, therefore opening an -# image read-only makes the overlap-check option irrelevant -OPEN_RO="open -r $TEST_IMG" - -echo -echo "=== Testing L2 reference into L1 ===" -echo -_make_test_img 64M -# Link first L1 entry (first L2 table) onto itself -# (Note the MSb in the L1 entry is set, ensuring the refcount is one - else any -# later write will result in a COW operation, effectively ruining this attempt -# on image corruption) -poke_file "$TEST_IMG" "$l1_offset" "\x80\x00\x00\x00\x00\x03\x00\x00" -_check_test_img - -# The corrupt bit should not be set anyway -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features - -# Try to write something, thereby forcing the corrupt bit to be set -$QEMU_IO -c "$OPEN_RW" -c "write -P 0x2a 0 512" | _filter_qemu_io - -# The corrupt bit must now be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features - -# This information should be available through qemu-img info -_img_info --format-specific - -# Try to open the image R/W (which should fail) -$QEMU_IO -c "$OPEN_RW" -c "read 0 512" 2>&1 | _filter_qemu_io \ - | _filter_testdir \ - | _filter_imgfmt - -# Try to open it RO (which should succeed) -$QEMU_IO -c "$OPEN_RO" -c "read 0 512" | _filter_qemu_io - -# We could now try to fix the image, but this would probably fail (how should an -# L2 table linked onto the L1 table be fixed?) - -echo -echo "=== Testing cluster data reference into refcount block ===" -echo -_make_test_img 64M -# Allocate L2 table -truncate -s "$(($l2_offset+65536))" "$TEST_IMG" -poke_file "$TEST_IMG" "$l1_offset" "\x80\x00\x00\x00\x00\x04\x00\x00" -# Mark cluster as used -poke_file "$TEST_IMG" "$(($rb_offset+8))" "\x00\x01" -# Redirect new data cluster onto refcount block -poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x02\x00\x00" -_check_test_img -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features -$QEMU_IO -c "$OPEN_RW" -c "write -P 0x2a 0 512" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features - -# Try to fix it -_check_test_img -r all - -# The corrupt bit should be cleared -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features - -# Look if it's really really fixed -$QEMU_IO -c "$OPEN_RW" -c "write -P 0x2a 0 512" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features - -echo -echo "=== Testing cluster data reference into inactive L2 table ===" -echo -_make_test_img 64M -$QEMU_IO -c "$OPEN_RW" -c "write -P 1 0 512" | _filter_qemu_io -$QEMU_IMG snapshot -c foo "$TEST_IMG" -$QEMU_IO -c "$OPEN_RW" -c "write -P 2 0 512" | _filter_qemu_io -# The inactive L2 table remains at its old offset -poke_file "$TEST_IMG" "$l2_offset_after_snapshot" \ - "\x80\x00\x00\x00\x00\x04\x00\x00" -_check_test_img -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features -$QEMU_IO -c "$OPEN_RW" -c "write -P 3 0 512" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features -_check_test_img -r all -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features -$QEMU_IO -c "$OPEN_RW" -c "write -P 4 0 512" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features - -# Check data -$QEMU_IO -c "$OPEN_RO" -c "read -P 4 0 512" | _filter_qemu_io -$QEMU_IMG snapshot -a foo "$TEST_IMG" -_check_test_img -$QEMU_IO -c "$OPEN_RO" -c "read -P 1 0 512" | _filter_qemu_io - -echo -echo "=== Testing overlap while COW is in flight ===" -echo -# compat=0.10 is required in order to make the following discard actually -# unallocate the sector rather than make it a zero sector - we want COW, after -# all. -IMGOPTS='compat=0.10' _make_test_img 1G -# Write two clusters, the second one enforces creation of an L2 table after -# the first data cluster. -$QEMU_IO -c 'write 0k 64k' -c 'write 512M 64k' "$TEST_IMG" | _filter_qemu_io -# Discard the first cluster. This cluster will soon enough be reallocated and -# used for COW. -$QEMU_IO -c 'discard 0k 64k' "$TEST_IMG" | _filter_qemu_io -# Now, corrupt the image by marking the second L2 table cluster as free. -poke_file "$TEST_IMG" '131084' "\x00\x00" # 0x2000c -# Start a write operation requiring COW on the image stopping it right before -# doing the read; then, trigger the corruption prevention by writing anything to -# any unallocated cluster, leading to an attempt to overwrite the second L2 -# table. Finally, resume the COW write and see it fail (but not crash). -echo "open -o file.driver=blkdebug $TEST_IMG -break cow_read 0 -aio_write 0k 1k -wait_break 0 -write 64k 64k -resume 0" | $QEMU_IO | _filter_qemu_io - -echo -echo "=== Testing unallocated image header ===" -echo -_make_test_img 64M -# Create L1/L2 -$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io -poke_file "$TEST_IMG" "$rb_offset" "\x00\x00" -$QEMU_IO -c "write 64k 64k" "$TEST_IMG" | _filter_qemu_io - -echo -echo "=== Testing unaligned L1 entry ===" -echo -_make_test_img 64M -$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io -# This will be masked with ~(512 - 1) = ~0x1ff, so whether the lower 9 bits are -# aligned or not does not matter -poke_file "$TEST_IMG" "$l1_offset" "\x80\x00\x00\x00\x00\x04\x2a\x00" -$QEMU_IO -c "read 0 64k" "$TEST_IMG" | _filter_qemu_io - -# Test how well zero cluster expansion can cope with this -_make_test_img 64M -$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io -poke_file "$TEST_IMG" "$l1_offset" "\x80\x00\x00\x00\x00\x04\x2a\x00" -$QEMU_IMG amend -o compat=0.10 "$TEST_IMG" - -echo -echo "=== Testing unaligned L2 entry ===" -echo -_make_test_img 64M -$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io -poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00" -$QEMU_IO -c "read 0 64k" "$TEST_IMG" | _filter_qemu_io - -echo -echo "=== Testing unaligned pre-allocated zero cluster ===" -echo -_make_test_img 64M -$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io -poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x01" -# zero cluster expansion -$QEMU_IMG amend -o compat=0.10 "$TEST_IMG" - -echo -echo "=== Testing unaligned reftable entry ===" -echo -_make_test_img 64M -poke_file "$TEST_IMG" "$rt_offset" "\x00\x00\x00\x00\x00\x02\x2a\x00" -$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io - -echo -echo "=== Testing non-fatal corruption on freeing ===" -echo -_make_test_img 64M -$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io -poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00" -$QEMU_IO -c "discard 0 64k" "$TEST_IMG" | _filter_qemu_io - -echo -echo "=== Testing read-only corruption report ===" -echo -_make_test_img 64M -$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io -poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00" -# Should only emit a single error message -$QEMU_IO -c "$OPEN_RO" -c "read 0 64k" -c "read 0 64k" | _filter_qemu_io - -echo -echo "=== Testing non-fatal and then fatal corruption report ===" -echo -_make_test_img 64M -$QEMU_IO -c "write 0 128k" "$TEST_IMG" | _filter_qemu_io -poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00" -poke_file "$TEST_IMG" "$(($l2_offset+8))" "\x80\x00\x00\x00\x00\x06\x2a\x00" -# Should emit two error messages -$QEMU_IO -c "discard 0 64k" -c "read 64k 64k" "$TEST_IMG" | _filter_qemu_io - -# success, all done -echo "*** done" -rm -f $seq.full -status=0 |