1#!/bin/bash 2# 3# Test case for VDI header corruption; image too large, and too many blocks. 4# Also simple test for creating dynamic and static VDI images. 5# 6# Copyright (C) 2013 Red Hat, Inc. 7# 8# This program is free software; you can redistribute it and/or modify 9# it under the terms of the GNU General Public License as published by 10# the Free Software Foundation; either version 2 of the License, or 11# (at your option) any later version. 12# 13# This program is distributed in the hope that it will be useful, 14# but WITHOUT ANY WARRANTY; without even the implied warranty of 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16# GNU General Public License for more details. 17# 18# You should have received a copy of the GNU General Public License 19# along with this program. If not, see <http://www.gnu.org/licenses/>. 20# 21 22# creator 23owner=jcody@redhat.com 24 25seq=`basename $0` 26echo "QA output created by $seq" 27 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39 40# This tests vdi-specific header fields 41_supported_fmt vdi 42_supported_proto file 43_supported_os Linux 44 45size=64M 46ds_offset=368 # disk image size field offset 47bs_offset=376 # block size field offset 48bii_offset=384 # block in image field offset 49 50echo 51echo "=== Statically allocated image creation ===" 52echo 53_make_test_img $size -o static 54_img_info 55stat -c"disk image file size in bytes: %s" "${TEST_IMG}" 56_cleanup_test_img 57 58echo 59echo "=== Testing image size bounds ===" 60echo 61_make_test_img $size 62_img_info 63stat -c"disk image file size in bytes: %s" "${TEST_IMG}" 64 65# check for image size too large 66# poke max image size, and appropriate blocks_in_image value 67echo "Test 1: Maximum size (512 TB - 128 MB):" 68poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x00\xf8\xff\xff\x01\x00" 69poke_file "$TEST_IMG" "$bii_offset" "\x80\xff\xff\x1f" 70_img_info 71 72echo 73echo "Test 2: Size too large (512 TB - 128 MB + 64 kB)" 74# This should be too large (-EINVAL): 75poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x01\xf8\xff\xff\x01\x00" 76_img_info 77 78echo 79echo "Test 3: Size valid (64M), but Blocks In Image too small (63)" 80# This sets the size to 64M, but with a blocks_in_image size that is 81# too small 82poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x00\x04\x00\x00\x00\x00" 83# For a 64M image, we would need a blocks_in_image value of at least 64, 84# so 63 should be too small and give us -ENOTSUP 85poke_file "$TEST_IMG" "$bii_offset" "\x3f\x00\x00\x00" 86_img_info 87 88echo 89echo "Test 4: Size valid (64M), but Blocks In Image exceeds max allowed" 90# Now check the bounds of blocks_in_image - 0x1fffff80 should be the max 91# value here, and we should get -ENOTSUP 92poke_file "$TEST_IMG" "$bii_offset" "\x81\xff\xff\x1f" 93_img_info 94 95# Finally, 1MB is the only block size supported. Verify that 96# a value != 1MB results in error, both smaller and larger 97echo 98echo "Test 5: Valid Image: 64MB, Blocks In Image 64, Block Size 1MB" 99poke_file "$TEST_IMG" "$bii_offset" "\x40\x00\x00\x00" # reset bii to valid 100poke_file "$TEST_IMG" "$bs_offset" "\x00\x00\x10\x00" # valid 101_img_info 102echo 103echo "Test 6: Block Size != 1MB; too small test (1MB - 1)" 104poke_file "$TEST_IMG" "$bs_offset" "\xff\xff\x0f\x00" # invalid (too small) 105_img_info 106echo 107echo "Test 7: Block Size != 1MB; too large test (1MB + 64KB)" 108poke_file "$TEST_IMG" "$bs_offset" "\x00\x00\x11\x00" # invalid (too large) 109_img_info 110# success, all done 111echo 112echo "*** done" 113rm -f $seq.full 114status=0 115