mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Eric Sandeen
a092363bbd
Tests xfs_db's ability to change & restore UUIDs on V5 filesystems, and tests xfs_copy's ability to change the UUID on the copy. Update to _filter_uuid is so that it will catch the UUID output from xfs_admin -u, which is slightly different than the regexp it was expecting. This requires new userspace which knows how to change the UUID on a V5 superblock. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
144 lines
4.2 KiB
Bash
Executable File
144 lines
4.2 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test 077
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#
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# test UUID modification of CRC-enabled filesystems
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#
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# CRC-enabled / V5 superblock filesystems have a UUID stamped into
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# every piece of metadata, and a mechanism was added later to allow
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# changing the user-visible UUID by copying the original UUID (which
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# matches all the existing metadata) to a new superblock location.
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# Exercise some of that behavior.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2015 Red Hat, Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would 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, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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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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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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}
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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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# real QA test starts here
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_supported_fs xfs
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_supported_os Linux
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_require_scratch
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_require_xfs_crc
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_require_meta_uuid
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# Takes 2 args, 2nd optional:
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# 1: generate, rewrite, or restore
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# 2: Expected UUID after the action. Blank if new uuid generated
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# After the action check the fs, and make sure it can be mounted
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# Sets NEW_UUID to the resulting UUID.
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_test_uuid()
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{
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ACTION=$1
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EXPECTED_UUID=$2
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$XFS_DB_PROG -x -c "uuid $ACTION" $SCRATCH_DEV \
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| _filter_uuid $EXPECTED_UUID
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NEW_UUID=`$XFS_DB_PROG -c "uuid" $SCRATCH_DEV | awk '{print $NF}'`
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_check_scratch_fs
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_scratch_mount || _fail "Mount failed after UUID $ACTION"
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_scratch_unmount
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}
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_fs_has_META_UUID()
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{
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FS=$1
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$XFS_DB_PROG -r -c version $FS | grep -q META_UUID
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}
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rm -f $seqres.full
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_scratch_mkfs_xfs -m crc=1 >> $seqres.full 2>&1 || _fail "mkfs failed"
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ORIG_UUID=`$XFS_DB_PROG -c "uuid" $SCRATCH_DEV | awk '{print $NF}'`
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_scratch_mount
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# Put some stuff on the fs
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$FSSTRESS_PROG -d $SCRATCH_MNT -n 100 -p 4 >> $seqres.full 2>&1
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_scratch_unmount
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# Can xfs_db change it?
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echo "== Generate new UUID"
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_test_uuid generate
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[ "$NEW_UUID" == "$ORIG_UUID" ] && _fail "Failed to change UUID"
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_fs_has_META_UUID $SCRATCH_DEV || _fail "META_UUID feature not set"
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# This should be a no-op
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echo "== Rewrite UUID"
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_test_uuid rewrite $NEW_UUID
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_fs_has_META_UUID $SCRATCH_DEV || _fail "META_UUID feature not set"
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# Can we change it back?
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echo "== Restore old UUID"
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_test_uuid restore $ORIG_UUID
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[ "$NEW_UUID" != "$ORIG_UUID" ] && _fail "Failed to restore UUID"
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_fs_has_META_UUID $SCRATCH_DEV && _fail "META_UUID feature should not be not set"
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# This should be a no-op too.
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echo "== Rewrite UUID"
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_test_uuid rewrite $ORIG_UUID
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_fs_has_META_UUID $SCRATCH_DEV && _fail "META_UUID feature should not be not set"
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# Ok, now what does xfs_copy do; it changes UUID by default
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IMGFILE=$TEST_DIR/$seq.copy.img
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rm -f $IMGFILE
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# xfs_copy changes the UUID by default
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echo "== xfs_copy with new UUID"
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$XFS_COPY_PROG $SCRATCH_DEV $IMGFILE 2>&1 >> $seqres.full || \
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_fail "xfs_copy (new UUID) failed"
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_check_xfs_filesystem $IMGFILE none none || _fail "Copy looks corrupted"
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# The copy should have META_UUID feature set
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_fs_has_META_UUID $IMGFILE || _fail "META_UUID feature not set on copy"
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_scratch_mount || _fail "Mount failed after UUID rewrite"
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_scratch_unmount
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rm -f $IMGFILE
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# duplicating the UUID should be fine too
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echo "== xfs_copy with duplicate UUID"
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$XFS_COPY_PROG -d $SCRATCH_DEV $IMGFILE 2>&1 >> $seqres.full || \
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_fail "xfs_copy (duplicate) failed"
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_check_xfs_filesystem $IMGFILE none none || _fail "Duplicate copy looks corrupted"
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# The copy should not have META_UUID feature set
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_fs_has_META_UUID $IMGFILE && _fail "META_UUID feature should not be set on copy"
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# success, all done
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status=0
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exit
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