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# Copyright (C) 2008-2009 Free Software Foundation, Inc.
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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 3 of the License, or
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# (at your option) any later version.
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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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# 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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test_description='enforce limits on partition start sector and length'
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# Need root privileges to use mount.
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privileges_required_=1
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####################################################
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# Create and mount a file system capable of dealing with >=2TB files.
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# We must be able to create a file with an apparent length of 2TB or larger.
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# It needn't be a large file system.
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'create an XFS file system' \
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dd if=/dev/zero of=$fs bs=1MB count=2 seek=20 &&
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# Unmount upon interrupt, failure, etc., as well as upon normal completion.
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cleanup_() { cd "$test_dir_" && umount "$mp" > /dev/null 2>&1; }
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mount -o loop $fs "$mp" &&
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# echo '********' $(echo $end_sector - $start_sector + 1 |bc)
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dd if=/dev/zero of=$dev bs=$ss count=2k seek=$end_sector 2> /dev/null &&
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parted -s $dev mklabel $table_type &&
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parted -s $dev mkpart p xfs ${start_sector}s ${end_sector}s
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# Specify the starting sector number and length in sectors,
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# rather than start and end.
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do_mkpart_start_and_len()
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end_sector=$(echo $start_sector + $len - 1|bc)
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do_mkpart $start_sector $end_sector
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for table_type in msdos; do
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"$table_type: a partition length of 2^32-1 works." \
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end=$(echo $n+2^32-2|bc) &&
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'parted -s $dev unit s p > out 2>&1 &&
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sed -n "/^ *1 *$n/s/ */ /gp" out|sed "s/ *\$//" > k && mv k out &&
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echo " 1 ${n}s ${end}s 4294967295s primary" > exp &&
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"$table_type: a partition length of exactly 2^32 sectors provokes failure." \
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'do_mkpart $n $(echo $n+2^32-1|bc) > err 2>&1'
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{ echo "Error: partition length of $1 sectors exceeds the"\
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"$table_type-partition-table-imposed maximum of 4294967295"; }
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test_expect_success \
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'check for new diagnostic' \
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'bad_part_length 4294967296 > exp && diff -u err exp'
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# FIXME: investigate this.
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# Unexpectedly to me, both of these failed with this same diagnostic:
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# Error: partition length of 4294967296 sectors exceeds the \
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# DOS-partition-table-imposed maximum of 2^32-1" > exp &&
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# I expected the one below to fail with a length of _4294967297_.
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# Debugging, I see that _check_partition *does* detect this,
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# but the diagnostic doesn't get displayed because of the wonders
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# of parted's exception mechanism.
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test_expect_failure \
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"$table_type: a partition length of 2^32+1 sectors provokes failure." \
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'do_mkpart $n $(echo $n+2^32|bc) > err 2>&1'
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# FIXME: odd that we asked for 2^32+1, yet the diagnostic says 2^32
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# FIXME: Probably due to constraints.
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# FIXME: For now, just accept the current output.
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test_expect_success \
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'check for new diagnostic' \
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'bad_part_length 4294967296 > exp && diff -u err exp'
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# =========================================================
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# Now consider partition starting sector numbers.
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{ echo "Error: starting sector number, $1 exceeds the"\
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"$table_type-partition-table-imposed maximum of 4294967295"; }
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test_expect_success \
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"$table_type: a partition start sector number of 2^32-1 works." \
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'do_mkpart_start_and_len $(echo 2^32-1|bc) 1000'
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Sector size (logical/physical): ${ss}B/${ss}B
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Partition Table: $table_type
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Number Start End Size Type File system Flags
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1 4294967295s 4294968294s 1000s primary
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test_expect_success \
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'parted -s $dev unit s p > out 2>&1 &&
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sed "s/Disk .*:/Disk:/;s/ *$//" out > k && mv k out &&
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test_expect_failure \
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"$table_type: a partition start sector number of 2^32 must fail." \
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'do_mkpart_start_and_len $(echo 2^32|bc) 1000 > err 2>&1'
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test_expect_success \
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'check for new diagnostic' \
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'bad_start_sector 4294967296 > exp && diff -u err exp'
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test_expect_failure \
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"$table_type: a partition start sector number of 2^32+1 must fail, too." \
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'do_mkpart_start_and_len $(echo 2^32+1|bc) 1000 > err 2>&1'
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test_expect_success \
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'check for new diagnostic' \
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'bad_start_sector 4294967296 > exp && diff -u err exp'