105 lines
3.1 KiB
Plaintext
105 lines
3.1 KiB
Plaintext
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#!/bin/bash
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#
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# Test case for VDI header corruption; image too large, and too many blocks
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#
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# Copyright (C) 2013 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=jcody@redhat.com
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seq=`basename $0`
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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# This tests vdi-specific header fields
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_supported_fmt vdi
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_supported_proto generic
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_supported_os Linux
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ds_offset=368 # disk image size field offset
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bs_offset=376 # block size field offset
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bii_offset=384 # block in image field offset
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echo
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echo "=== Testing image size bounds ==="
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echo
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_make_test_img 64M
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# check for image size too large
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# poke max image size, and appropriate blocks_in_image value
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echo "Test 1: Maximum size (1024 TB):"
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poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\xf0\xff\xff\xff\x03\x00"
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poke_file "$TEST_IMG" "$bii_offset" "\xff\xff\xff\x3f"
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_img_info
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echo
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echo "Test 2: Size too large (1024TB + 1)"
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# This should be too large (-EINVAL):
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poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\xf1\xff\xff\xff\x03\x00"
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_img_info
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echo
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echo "Test 3: Size valid (64M), but Blocks In Image too small (63)"
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# This sets the size to 64M, but with a blocks_in_image size that is
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# too small
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poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x00\x04\x00\x00\x00\x00"
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# For a 64M image, we would need a blocks_in_image value of at least 64,
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# so 63 should be too small and give us -ENOTSUP
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poke_file "$TEST_IMG" "$bii_offset" "\x3f\x00\x00\x00"
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_img_info
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echo
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echo "Test 4: Size valid (64M), but Blocks In Image exceeds max allowed"
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# Now check the bounds of blocks_in_image - 0x3fffffff should be the max
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# value here, and we should get -ENOTSUP
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poke_file "$TEST_IMG" "$bii_offset" "\x00\x00\x00\x40"
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_img_info
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# Finally, 1MB is the only block size supported. Verify that
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# a value != 1MB results in error, both smaller and larger
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echo
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echo "Test 5: Valid Image: 64MB, Blocks In Image 64, Block Size 1MB"
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poke_file "$TEST_IMG" "$bii_offset" "\x40\x00\x00\x00" # reset bii to valid
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poke_file "$TEST_IMG" "$bs_offset" "\x00\x00\x10\x00" # valid
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_img_info
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echo
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echo "Test 6: Block Size != 1MB; too small test (1MB - 1)"
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poke_file "$TEST_IMG" "$bs_offset" "\xff\xff\x0f\x00" # invalid (too small)
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_img_info
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echo
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echo "Test 7: Block Size != 1MB; too large test (1MB + 64KB)"
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poke_file "$TEST_IMG" "$bs_offset" "\x00\x00\x11\x00" # invalid (too large)
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_img_info
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# success, all done
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echo
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echo "*** done"
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rm -f $seq.full
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status=0
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