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Diffstat (limited to 'tests/qemu-iotests/084')
| -rwxr-xr-x | tests/qemu-iotests/084 | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/tests/qemu-iotests/084 b/tests/qemu-iotests/084 new file mode 100755 index 0000000000..cb4d7b729e --- /dev/null +++ b/tests/qemu-iotests/084 @@ -0,0 +1,104 @@ +#!/bin/bash +# +# Test case for VDI header corruption; image too large, and too many blocks +# +# 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=jcody@redhat.com + +seq=`basename $0` +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +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 vdi-specific header fields +_supported_fmt vdi +_supported_proto generic +_supported_os Linux + +ds_offset=368 # disk image size field offset +bs_offset=376 # block size field offset +bii_offset=384 # block in image field offset + +echo +echo "=== Testing image size bounds ===" +echo +_make_test_img 64M + +# check for image size too large +# poke max image size, and appropriate blocks_in_image value +echo "Test 1: Maximum size (1024 TB):" +poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\xf0\xff\xff\xff\x03\x00" +poke_file "$TEST_IMG" "$bii_offset" "\xff\xff\xff\x3f" +_img_info + +echo +echo "Test 2: Size too large (1024TB + 1)" +# This should be too large (-EINVAL): +poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\xf1\xff\xff\xff\x03\x00" +_img_info + +echo +echo "Test 3: Size valid (64M), but Blocks In Image too small (63)" +# This sets the size to 64M, but with a blocks_in_image size that is +# too small +poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x00\x04\x00\x00\x00\x00" +# For a 64M image, we would need a blocks_in_image value of at least 64, +# so 63 should be too small and give us -ENOTSUP +poke_file "$TEST_IMG" "$bii_offset" "\x3f\x00\x00\x00" +_img_info + +echo +echo "Test 4: Size valid (64M), but Blocks In Image exceeds max allowed" +# Now check the bounds of blocks_in_image - 0x3fffffff should be the max +# value here, and we should get -ENOTSUP +poke_file "$TEST_IMG" "$bii_offset" "\x00\x00\x00\x40" +_img_info + +# Finally, 1MB is the only block size supported. Verify that +# a value != 1MB results in error, both smaller and larger +echo +echo "Test 5: Valid Image: 64MB, Blocks In Image 64, Block Size 1MB" +poke_file "$TEST_IMG" "$bii_offset" "\x40\x00\x00\x00" # reset bii to valid +poke_file "$TEST_IMG" "$bs_offset" "\x00\x00\x10\x00" # valid +_img_info +echo +echo "Test 6: Block Size != 1MB; too small test (1MB - 1)" +poke_file "$TEST_IMG" "$bs_offset" "\xff\xff\x0f\x00" # invalid (too small) +_img_info +echo +echo "Test 7: Block Size != 1MB; too large test (1MB + 64KB)" +poke_file "$TEST_IMG" "$bs_offset" "\x00\x00\x11\x00" # invalid (too large) +_img_info +# success, all done +echo +echo "*** done" +rm -f $seq.full +status=0 |