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#!/usr/bin/env bash
# Copyright (C) 2018 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
SKIP_WITH_LVMPOLLD=1
. lib/inittest
which mkfs.ext4 || skip
aux have_integrity 1 5 0 || skip
# Avoid 4K ramdisk devices on older kernels
aux kernel_at_least 5 10 || export LVM_TEST_PREFER_BRD=0
mnt="mnt"
mkdir -p $mnt
aux prepare_devs 3 40
# Use awk instead of anoyingly long log out from printf
#printf "%0.sA" {1..16384} >> fileA
awk 'BEGIN { while (z++ < 16384) printf "A" }' > fileA
awk 'BEGIN { while (z++ < 4096) printf "B" ; while (z++ < 16384) printf "b" }' > fileB
awk 'BEGIN { while (z++ < 16384) printf "C" }' > fileC
_prepare_vg() {
# zero devs so we are sure to find the correct file data
# on the underlying devs when corrupting it
aux clear_devs "$dev1" "$dev2" "$dev3"
vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3"
pvs
}
_test1() {
mkfs.ext4 "$DM_DEV_DIR/$vg/$lv1"
mount "$DM_DEV_DIR/$vg/$lv1" $mnt
cp fileA $mnt
cp fileB $mnt
cp fileC $mnt
umount $mnt
lvchange -an $vg/$lv1
# Corrupting raid1 is simple - 1 leg needs to be modified
# For raid5 corrupted block can be places on any of its leg.
for i in "$@" ; do
aux corrupt_dev "$i" BBBBBBBBBBBBBBBBB BBBBBBBBCBBBBBBBB |& tee out
grep -q "copied" out && break # leg found and corrupted
done
lvchange -ay $vg/$lv1
# so without synchecking the array - integrity doesn't know yet about failure
check lv_field $vg/${lv1}_rimage_0 integritymismatches "0"
check lv_field $vg/${lv1}_rimage_1 integritymismatches "0"
[ $# -gt 2 ] && check lv_field $vg/${lv1}_rimage_2 integritymismatches "0"
lvchange --syncaction check $vg/$lv1
aux wait_recalc $vg/$lv1
# after synaction check - integrity should recognize faulty devices
baddev=0
for i in 0 1 2 ; do
[ "$i" -gt 1 ] && [ $# -lt 3 ] && continue # only raid5 has rimage_2
[ "$(get lv_field $vg/${lv1}_rimage_${i} integritymismatches)" = "0" ] || baddev=$(( baddev + 1 ))
done
[ "$baddev" -eq 1 ] || die "Unexpected number of integritymismatched devices ($baddev)!"
mount "$DM_DEV_DIR/$vg/$lv1" $mnt
cmp -b $mnt/fileA fileA
cmp -b $mnt/fileB fileB
cmp -b $mnt/fileC fileC
umount $mnt
}
_test2() {
mkfs.ext4 "$DM_DEV_DIR/$vg/$lv1"
mount "$DM_DEV_DIR/$vg/$lv1" $mnt
cp fileA $mnt
cp fileB $mnt
cp fileC $mnt
umount $mnt
lvchange -an $vg/$lv1
# corrupt fileB and fileC on dev1
aux corrupt_dev "$dev1" BBBBBBBBBBBBBBBBB BBBBBBBBCBBBBBBBB
aux corrupt_dev "$dev1" CCCCCCCCCCCCCCCCC DDDDDDDDDDDDDDDDD
# corrupt fileA on dev2
aux corrupt_dev "$dev2" AAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAEAA
lvchange -ay $vg/$lv1
check lv_field $vg/${lv1}_rimage_0 integritymismatches "0"
check lv_field $vg/${lv1}_rimage_1 integritymismatches "0"
lvchange --syncaction check $vg/$lv1
aux wait_recalc $vg/$lv1
not check lv_field $vg/${lv1}_rimage_0 integritymismatches "0"
not check lv_field $vg/${lv1}_rimage_1 integritymismatches "0"
mount "$DM_DEV_DIR/$vg/$lv1" $mnt
cmp -b $mnt/fileA fileA
cmp -b $mnt/fileB fileB
cmp -b $mnt/fileC fileC
umount $mnt
}
_prepare_vg
lvcreate --type raid1 -m1 --raidintegrity y -n $lv1 -l 6 $vg "$dev1" "$dev2"
aux wait_recalc $vg/${lv1}_rimage_0
aux wait_recalc $vg/${lv1}_rimage_1
aux wait_recalc $vg/$lv1
_test1 "$dev1"
not check $vg/$lv1 integritymismatches "0"
lvchange -an $vg/$lv1
lvconvert --raidintegrity n $vg/$lv1
lvremove $vg/$lv1
vgremove -ff $vg
_prepare_vg
lvcreate --type raid1 -m1 --raidintegrity y -n $lv1 -l 6 $vg "$dev1" "$dev2"
aux wait_recalc $vg/${lv1}_rimage_0
aux wait_recalc $vg/${lv1}_rimage_1
aux wait_recalc $vg/$lv1
_test2
not check $vg/$lv1 integritymismatches "0"
lvchange -an $vg/$lv1
lvconvert --raidintegrity n $vg/$lv1
lvremove $vg/$lv1
vgremove -ff $vg
_prepare_vg
lvcreate --type raid5 --raidintegrity y -n $lv1 -I 4K -l 6 $vg "$dev1" "$dev2" "$dev3"
aux wait_recalc $vg/${lv1}_rimage_0
aux wait_recalc $vg/${lv1}_rimage_1
aux wait_recalc $vg/${lv1}_rimage_2
aux wait_recalc $vg/$lv1
_test1 "$dev1" "$dev2" "$dev3"
not check $vg/$lv1 integritymismatches "0"
lvchange -an $vg/$lv1
lvconvert --raidintegrity n $vg/$lv1
lvremove $vg/$lv1
vgremove -ff $vg
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