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