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From 36dbb9edadf3cd22fd6f0da96cf293da35b0234c Mon Sep 17 00:00:00 2001
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From: Max Reitz <mreitz@redhat.com>
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Date: Sat, 13 Jun 2015 16:22:05 +0200
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Subject: [PATCH 11/42] iotests: Add more tests for qcow2 corruption
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Message-id: <1434212556-3927-12-git-send-email-mreitz@redhat.com>
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Patchwork-id: 66030
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O-Subject: [RHEL-7.2 qemu-kvm PATCH 11/42] iotests: Add more tests for qcow2 corruption
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Bugzilla: 1129893
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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BZ: 1129893
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Add tests for unaligned L1/L2/reftable entries and non-fatal corruption
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reports.
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Message-id: 1409926039-29044-6-git-send-email-mreitz@redhat.com
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit 5b0ed2be883238f52567ba2635ea38f34e8eb90d)
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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tests/qemu-iotests/060 | 56 ++++++++++++++++++++++++++++++++++++++++++++--
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tests/qemu-iotests/060.out | 51 +++++++++++++++++++++++++++++++++++++++++
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2 files changed, 105 insertions(+), 2 deletions(-)
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diff --git a/tests/qemu-iotests/060 b/tests/qemu-iotests/060
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index 5180e23..e1187a3 100644
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--- a/tests/qemu-iotests/060
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+++ b/tests/qemu-iotests/060
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@@ -169,9 +169,61 @@ echo "=== Testing unallocated image header ==="
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echo
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_make_test_img 64M
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# Create L1/L2
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-$QEMU_IO -c "$OPEN_RW" -c "write 0 64k" | _filter_qemu_io
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+$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
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poke_file "$TEST_IMG" "$rb_offset" "\x00\x00"
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-$QEMU_IO -c "$OPEN_RW" -c "write 64k 64k" | _filter_qemu_io
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+$QEMU_IO -c "write 64k 64k" "$TEST_IMG" | _filter_qemu_io
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+
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+echo
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+echo "=== Testing unaligned L1 entry ==="
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+echo
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+_make_test_img 64M
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+$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
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+# This will be masked with ~(512 - 1) = ~0x1ff, so whether the lower 9 bits are
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+# aligned or not does not matter
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+poke_file "$TEST_IMG" "$l1_offset" "\x80\x00\x00\x00\x00\x04\x2a\x00"
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+$QEMU_IO -c "read 0 64k" "$TEST_IMG" | _filter_qemu_io
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+
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+echo
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+echo "=== Testing unaligned L2 entry ==="
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+echo
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+_make_test_img 64M
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+$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
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+poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00"
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+$QEMU_IO -c "read 0 64k" "$TEST_IMG" | _filter_qemu_io
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+
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+echo
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+echo "=== Testing unaligned reftable entry ==="
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+echo
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+_make_test_img 64M
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+poke_file "$TEST_IMG" "$rt_offset" "\x00\x00\x00\x00\x00\x02\x2a\x00"
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+$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
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+
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+echo
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+echo "=== Testing non-fatal corruption on freeing ==="
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+echo
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+_make_test_img 64M
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+$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
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+poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00"
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+$QEMU_IO -c "discard 0 64k" "$TEST_IMG" | _filter_qemu_io
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+
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+echo
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+echo "=== Testing read-only corruption report ==="
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+echo
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+_make_test_img 64M
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+$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
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+poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00"
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+# Should only emit a single error message
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+$QEMU_IO -c "$OPEN_RO" -c "read 0 64k" -c "read 0 64k" | _filter_qemu_io
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+
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+echo
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+echo "=== Testing non-fatal and then fatal corruption report ==="
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+echo
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+_make_test_img 64M
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+$QEMU_IO -c "write 0 128k" "$TEST_IMG" | _filter_qemu_io
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+poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00"
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+poke_file "$TEST_IMG" "$(($l2_offset+8))" "\x80\x00\x00\x00\x00\x06\x2a\x00"
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+# Should emit two error messages
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+$QEMU_IO -c "discard 0 64k" -c "read 64k 64k" "$TEST_IMG" | _filter_qemu_io
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# success, all done
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echo "*** done"
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diff --git a/tests/qemu-iotests/060.out b/tests/qemu-iotests/060.out
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index 30806da..4f0c6d0 100644
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--- a/tests/qemu-iotests/060.out
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+++ b/tests/qemu-iotests/060.out
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@@ -101,4 +101,55 @@ wrote 65536/65536 bytes at offset 0
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with qcow2_header); further corruption events will be suppressed
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write failed: Input/output error
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+
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+=== Testing unaligned L1 entry ===
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+
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+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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+wrote 65536/65536 bytes at offset 0
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+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+qcow2: Marking image as corrupt: L2 table offset 0x42a00 unaligned (L1 index: 0); further corruption events will be suppressed
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+read failed: Input/output error
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+
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+=== Testing unaligned L2 entry ===
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+
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+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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+wrote 65536/65536 bytes at offset 0
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+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+qcow2: Marking image as corrupt: Data cluster offset 0x52a00 unaligned (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed
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+read failed: Input/output error
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+
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+=== Testing unaligned reftable entry ===
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+
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+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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+qcow2: Marking image as corrupt: Refblock offset 0x22a00 unaligned (reftable index: 0); further corruption events will be suppressed
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+write failed: Input/output error
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+
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+=== Testing non-fatal corruption on freeing ===
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+
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+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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+wrote 65536/65536 bytes at offset 0
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+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+qcow2: Image is corrupt: Cannot free unaligned cluster 0x52a00; further non-fatal corruption events will be suppressed
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+discard 65536/65536 bytes at offset 0
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+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+
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+=== Testing read-only corruption report ===
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+
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+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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+wrote 65536/65536 bytes at offset 0
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+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+qcow2: Image is corrupt: Data cluster offset 0x52a00 unaligned (L2 offset: 0x40000, L2 index: 0); further non-fatal corruption events will be suppressed
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+read failed: Input/output error
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+read failed: Input/output error
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+
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+=== Testing non-fatal and then fatal corruption report ===
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+
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+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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+wrote 131072/131072 bytes at offset 0
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+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+qcow2: Image is corrupt: Cannot free unaligned cluster 0x52a00; further non-fatal corruption events will be suppressed
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+qcow2: Marking image as corrupt: Data cluster offset 0x62a00 unaligned (L2 offset: 0x40000, L2 index: 0x1); further corruption events will be suppressed
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+discard 65536/65536 bytes at offset 0
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+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+read failed: Input/output error
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*** done
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--
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1.8.3.1
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