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 28here=`pwd` 29status=1 # failure is the default! 30 31_cleanup() 32{ 33 _cleanup_test_img 34} 35trap "_cleanup; exit \$status" 0 1 2 3 15 36 37# get standard environment, filters and checks 38. ./common.rc 39. ./common.filter 40 41# This tests vdi-specific header fields 42_supported_fmt vdi 43_supported_proto file 44_supported_os Linux 45 46size=64M 47ds_offset=368 # disk image size field offset 48bs_offset=376 # block size field offset 49bii_offset=384 # block in image field offset 50 51echo 52echo "=== Statically allocated image creation ===" 53echo 54_make_test_img $size -o static 55_img_info 56stat -c"disk image file size in bytes: %s" "${TEST_IMG}" 57_cleanup_test_img 58 59echo 60echo "=== Testing image size bounds ===" 61echo 62_make_test_img $size 63_img_info 64stat -c"disk image file size in bytes: %s" "${TEST_IMG}" 65 66# check for image size too large 67# poke max image size, and appropriate blocks_in_image value 68echo "Test 1: Maximum size (512 TB - 128 MB):" 69poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x00\xf8\xff\xff\x01\x00" 70poke_file "$TEST_IMG" "$bii_offset" "\x80\xff\xff\x1f" 71_img_info 72 73echo 74echo "Test 2: Size too large (512 TB - 128 MB + 64 kB)" 75# This should be too large (-EINVAL): 76poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x01\xf8\xff\xff\x01\x00" 77_img_info 78 79echo 80echo "Test 3: Size valid (64M), but Blocks In Image too small (63)" 81# This sets the size to 64M, but with a blocks_in_image size that is 82# too small 83poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x00\x04\x00\x00\x00\x00" 84# For a 64M image, we would need a blocks_in_image value of at least 64, 85# so 63 should be too small and give us -ENOTSUP 86poke_file "$TEST_IMG" "$bii_offset" "\x3f\x00\x00\x00" 87_img_info 88 89echo 90echo "Test 4: Size valid (64M), but Blocks In Image exceeds max allowed" 91# Now check the bounds of blocks_in_image - 0x1fffff80 should be the max 92# value here, and we should get -ENOTSUP 93poke_file "$TEST_IMG" "$bii_offset" "\x81\xff\xff\x1f" 94_img_info 95 96# Finally, 1MB is the only block size supported. Verify that 97# a value != 1MB results in error, both smaller and larger 98echo 99echo "Test 5: Valid Image: 64MB, Blocks In Image 64, Block Size 1MB" 100poke_file "$TEST_IMG" "$bii_offset" "\x40\x00\x00\x00" # reset bii to valid 101poke_file "$TEST_IMG" "$bs_offset" "\x00\x00\x10\x00" # valid 102_img_info 103echo 104echo "Test 6: Block Size != 1MB; too small test (1MB - 1)" 105poke_file "$TEST_IMG" "$bs_offset" "\xff\xff\x0f\x00" # invalid (too small) 106_img_info 107echo 108echo "Test 7: Block Size != 1MB; too large test (1MB + 64KB)" 109poke_file "$TEST_IMG" "$bs_offset" "\x00\x00\x11\x00" # invalid (too large) 110_img_info 111# success, all done 112echo 113echo "*** done" 114rm -f $seq.full 115status=0 116