#!/usr/bin/env bash

# Copyright (C) 2020 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

test_description='devices file with devnames'

. lib/inittest

aux prepare_devs 7

RUNDIR="/run"
test -d "$RUNDIR" || RUNDIR="/var/run"
PVS_ONLINE_DIR="$RUNDIR/lvm/pvs_online"
VGS_ONLINE_DIR="$RUNDIR/lvm/vgs_online"
PVS_LOOKUP_DIR="$RUNDIR/lvm/pvs_lookup"

_clear_online_files() {
        # wait till udev is finished
        aux udev_wait
        rm -f "$PVS_ONLINE_DIR"/*
        rm -f "$VGS_ONLINE_DIR"/*
        rm -f "$PVS_LOOKUP_DIR"/*
}

DFDIR="$LVM_SYSTEM_DIR/devices"
mkdir $DFDIR || true
DF="$DFDIR/system.devices"
ORIG="$DFDIR/orig.devices"

aux lvmconf 'devices/use_devicesfile = 1'

pvcreate $dev1
ls $DF
grep $dev1 $DF

pvcreate $dev2
grep $dev2 $DF

pvcreate $dev3
grep $dev3 $DF

vgcreate $vg1 $dev1 $dev2

# PVID with dashes for matching pvs -o+uuid output
OPVID1=`pvs $dev1 --noheading -o uuid | awk '{print $1}'`
OPVID2=`pvs $dev2 --noheading -o uuid | awk '{print $1}'`
OPVID3=`pvs $dev3 --noheading -o uuid | awk '{print $1}'`

# PVID without dashes for matching devices file fields
PVID1=`pvs $dev1 --noheading -o uuid | tr -d - | awk '{print $1}'`
PVID2=`pvs $dev2 --noheading -o uuid | tr -d - | awk '{print $1}'`
PVID3=`pvs $dev3 --noheading -o uuid | tr -d - | awk '{print $1}'`

lvmdevices --deldev $dev3

not grep $dev3 $DF
not grep $PVID3 $DF
not pvs $dev3

cp $DF $ORIG

lvcreate -l4 -an -i2 -n $lv1 $vg1

#
# when wrong idname devname is outside DF it's corrected if search_for=1
# by a general cmd, or by lvmdevices --addpvid
#
# when wrong idname devname is outside DF it's not found or corrected if
# search_for=0 by a general cmd, but will be by lvmdevices --addpvid
#
# when wrong idname devname is inside DF it's corrected if search_for=0|1
# by a general cmd, or by lvmdevices --addpvid
# 
# pvscan --cache -aay does not update DF when devname= is wrong
#
# pvscan --cache -aay when idname devname is wrong:
# every dev is read and then skipped if pvid is not in DF
#
# commands still work with incorrect devname=
# . and they automatically correct the devname=
#


#
# idname changes to become incorrect, devname remains unchanged and correct
# . change idname to something outside DF
# . change idname to match another DF entry
# . swap idname of two DF entries
#

# edit DF idname, s/dev1/dev3/, where new dev is not in DF

sed -e "s|IDNAME=$dev1|IDNAME=$dev3|" $ORIG > $DF
cat $DF
# pvs reports correct info 
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
not grep $OPVID3 out
not grep $dev3 out
grep $OPVID1 out |tee out2
grep $dev1 out2
# pvs fixed the DF
not grep $PVID3 $DF
not grep $dev3 $DF
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
cat $DF

sed -e "s|IDNAME=$dev1|IDNAME=$dev3|" $ORIG > $DF
cat $DF
# lvcreate uses correct dev
lvcreate -l1 -n $lv2 -an $vg1 $dev1
# lvcreate fixed the DF
not grep $PVID3 $DF
not grep $dev3 $DF
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
# pvs reports correct dev
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
not grep $OPVID3 out
not grep $dev3 out
grep $OPVID1 out |tee out2
grep $dev1 out2
lvremove $vg1/$lv2
cat $DF

sed -e "s|IDNAME=$dev1|IDNAME=$dev3|" $ORIG > $DF
cat $DF
# lvmdevices fixes the DF
lvmdevices --update
not grep $PVID3 $DF
not grep $dev3 $DF
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
cat $DF

# edit DF idname, s/dev1/dev2/, creating two entries with same idname

sed -e "s|IDNAME=$dev1|IDNAME=$dev2|" $ORIG > $DF
cat $DF
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
grep $OPVID1 out |tee out2
grep $dev1 out2
grep $OPVID2 out |tee out2
grep $dev2 out2
# pvs fixed the DF
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep IDNAME=$dev2 out
cat $DF

sed -e "s|IDNAME=$dev1|IDNAME=$dev2|" $ORIG > $DF
cat $DF
# lvcreate uses correct dev
lvcreate -l1 -n $lv2 -an $vg1 $dev1
# lvcreate fixed the DF
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep IDNAME=$dev2 out
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
grep $OPVID1 out |tee out2
grep $dev1 out2
grep $OPVID2 out |tee out2
grep $dev2 out2
lvremove $vg1/$lv2
cat $DF

sed -e "s|IDNAME=$dev1|IDNAME=$dev2|" $ORIG > $DF
cat $DF
# lvmdevices fixes the DF
lvmdevices --update
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep IDNAME=$dev2 out
cat $DF

# edit DF idname, swap dev1 and dev2

sed -e "s|IDNAME=$dev1|IDNAME=tmpname|" $ORIG > tmp1.devices
sed -e "s|IDNAME=$dev2|IDNAME=$dev1|" tmp1.devices > tmp2.devices
sed -e "s|IDNAME=tmpname|IDNAME=$dev2|" tmp2.devices > $DF
cat $DF
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
grep $OPVID1 out |tee out2
grep $dev1 out2
grep $OPVID2 out |tee out2
grep $dev2 out2
# pvs fixed the DF
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep IDNAME=$dev2 out
cat $DF

sed -e "s|IDNAME=$dev1|IDNAME=tmpname|" $ORIG > tmp1.devices
sed -e "s|IDNAME=$dev2|IDNAME=$dev1|" tmp1.devices > tmp2.devices
sed -e "s|IDNAME=tmpname|IDNAME=$dev2|" tmp2.devices > $DF
cat $DF
# lvcreate uses correct dev
lvcreate -l1 -n $lv2 -an $vg1 $dev1
# lvcreate fixed the DF
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep IDNAME=$dev2 out
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
grep $OPVID1 out |tee out2
grep $dev1 out2
grep $OPVID2 out |tee out2
grep $dev2 out2
lvremove $vg1/$lv2
cat $DF

sed -e "s|IDNAME=$dev1|IDNAME=tmpname|" $ORIG > tmp1.devices
sed -e "s|IDNAME=$dev2|IDNAME=$dev1|" tmp1.devices > tmp2.devices
sed -e "s|IDNAME=tmpname|IDNAME=$dev2|" tmp2.devices > $DF
cat $DF
# lvmdevices fixes the DF
lvmdevices --update
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep IDNAME=$dev2 out
cat $DF


#
# idname remains correct, devname changes to become incorrect
# . change devname to something outside DF
# . change devname to match another DF entry
# . swap devname of two DF entries
#

# edit DF devname, s/dev1/dev3/, where new dev is not in DF

sed -e "s|DEVNAME=$dev1|DEVNAME=$dev3|" $ORIG > $DF
cat $DF
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
not grep $OPVID3 out
not grep $dev3 out
grep $OPVID1 out |tee out2
grep $dev1 out2
# pvs fixed the DF
not grep $PVID3 $DF
not grep $dev3 $DF
grep $PVID1 $DF |tee out
grep DEVNAME=$dev1 out
cat $DF

sed -e "s|DEVNAME=$dev1|DEVNAME=$dev3|" $ORIG > $DF
cat $DF
# lvmdevices fixes the DF
lvmdevices --update
not grep $PVID3 $DF
not grep $dev3 $DF
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
cat $DF

# edit DF devname, s/dev1/dev2/, creating two entries with same devname

sed -e "s|DEVNAME=$dev1|DEVNAME=$dev2|" $ORIG > $DF
cat $DF
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
grep $OPVID1 out |tee out2
grep $dev1 out2
grep $OPVID2 out |tee out2
grep $dev2 out2
# pvs fixed the DF
grep $PVID1 $DF |tee out
grep DEVNAME=$dev1 out
grep $PVID2 $DF |tee out
grep DEVNAME=$dev2 out
cat $DF

sed -e "s|DEVNAME=$dev1|DEVNAME=$dev2|" $ORIG > $DF
cat $DF
# lvmdevices fixes the DF
lvmdevices --update
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep IDNAME=$dev2 out
cat $DF

# edit DF devname, swap dev1 and dev2

sed -e "s|DEVNAME=$dev1|DEVNAME=tmpname|" $ORIG > tmp1.devices
sed -e "s|DEVNAME=$dev2|DEVNAME=$dev1|" tmp1.devices > tmp2.devices
sed -e "s|DEVNAME=tmpname|DEVNAME=$dev2|" tmp2.devices > $DF
cat $DF
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
grep $OPVID1 out |tee out2
grep $dev1 out2
grep $OPVID2 out |tee out2
grep $dev2 out2
# pvs fixed the DF
grep $PVID1 $DF |tee out
grep DEVNAME=$dev1 out
grep $PVID2 $DF |tee out
grep DEVNAME=$dev2 out
cat $DF

sed -e "s|DEVNAME=$dev1|DEVNAME=tmpname|" $ORIG > tmp1.devices
sed -e "s|DEVNAME=$dev2|DEVNAME=$dev1|" tmp1.devices > tmp2.devices
sed -e "s|DEVNAME=tmpname|DEVNAME=$dev2|" tmp2.devices > $DF
cat $DF
# lvmdevices fixes the DF
lvmdevices --update
grep $PVID1 $DF |tee out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep IDNAME=$dev2 out
cat $DF


#
# idname and devname change, both become incorrect
# . change idname&devname to something outside DF
# . change idname&devname to match another DF entry
# . swap idname&devname of two DF entries
#

# edit DF idname&devname, s/dev1/dev3/, where new dev is not in DF

sed -e "s|DEVNAME=$dev1|DEVNAME=$dev3|" $ORIG > tmp1.devices
sed -e "s|IDNAME=$dev1|IDNAME=$dev3|" tmp1.devices > $DF
cat $DF
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
not grep $OPVID3 out
not grep $dev3 out
grep $OPVID1 out |tee out2
grep $dev1 out2
# pvs fixed the DF
not grep $PVID3 $DF
not grep $dev3 $DF
grep $PVID1 $DF |tee out
grep DEVNAME=$dev1 out
grep IDNAME=$dev1 out
cat $DF

sed -e "s|DEVNAME=$dev1|DEVNAME=$dev3|" $ORIG > tmp1.devices
sed -e "s|IDNAME=$dev1|IDNAME=$dev3|" tmp1.devices > $DF
cat $DF
# lvmdevices fixes the DF
lvmdevices --update
not grep $PVID3 $DF
not grep $dev3 $DF
grep $PVID1 $DF |tee out
grep DEVNAME=$dev1 out
grep IDNAME=$dev1 out
cat $DF

# edit DF idname&devname, s/dev1/dev2/, creating two entries with same devname

sed -e "s|DEVNAME=$dev1|DEVNAME=$dev2|" tmp1.devices > $DF
sed -e "s|IDNAME=$dev1|IDNAME=$dev2|" tmp1.devices > $DF
cat $DF
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
grep $OPVID1 out |tee out2
grep $dev1 out2
grep $OPVID2 out |tee out2
grep $dev2 out2
# pvs fixed the DF
grep $PVID1 $DF |tee out
grep DEVNAME=$dev1 out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep DEVNAME=$dev2 out
grep IDNAME=$dev2 out
cat $DF

sed -e "s|DEVNAME=$dev1|DEVNAME=$dev2|" tmp1.devices > $DF
sed -e "s|IDNAME=$dev1|IDNAME=$dev2|" tmp1.devices > $DF
cat $DF
# lvmdevices fixes the DF
lvmdevices --update
grep $PVID1 $DF |tee out
grep DEVNAME=$dev1 out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep DEVNAME=$dev2 out
grep IDNAME=$dev2 out
cat $DF

# edit DF devname, swap dev1 and dev2

sed -e "s|DEVNAME=$dev1|DEVNAME=tmpname|" $ORIG > tmp1.devices
sed -e "s|DEVNAME=$dev2|DEVNAME=$dev1|" tmp1.devices > tmp2.devices
sed -e "s|DEVNAME=tmpname|DEVNAME=$dev2|" tmp2.devices > tmp3.devices
sed -e "s|IDNAME=$dev1|IDNAME=tmpname|" tmp3.devices > tmp4.devices
sed -e "s|IDNAME=$dev2|IDNAME=$dev1|" tmp4.devices > tmp5.devices
sed -e "s|IDNAME=tmpname|IDNAME=$dev2|" tmp5.devices > $DF
cat $DF
# pvs reports correct info
pvs -o+uuid | tee pvs.out
grep $vg1 pvs.out > out
grep $OPVID1 out |tee out2
grep $dev1 out2
grep $OPVID2 out |tee out2
grep $dev2 out2
# pvs fixed the DF
grep $PVID1 $DF |tee out
grep DEVNAME=$dev1 out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep DEVNAME=$dev2 out
grep IDNAME=$dev2 out
cat $DF

sed -e "s|DEVNAME=$dev1|DEVNAME=tmpname|" $ORIG > tmp1.devices
sed -e "s|DEVNAME=$dev2|DEVNAME=$dev1|" tmp1.devices > tmp2.devices
sed -e "s|DEVNAME=tmpname|DEVNAME=$dev2|" tmp2.devices > tmp3.devices
sed -e "s|IDNAME=$dev1|IDNAME=tmpname|" tmp3.devices > tmp4.devices
sed -e "s|IDNAME=$dev2|IDNAME=$dev1|" tmp4.devices > tmp5.devices
sed -e "s|IDNAME=tmpname|IDNAME=$dev2|" tmp5.devices > $DF
cat $DF
# lvmdevices fixes the DF
lvmdevices --update
grep $PVID1 $DF |tee out
grep DEVNAME=$dev1 out
grep IDNAME=$dev1 out
grep $PVID2 $DF |tee out
grep DEVNAME=$dev2 out
grep IDNAME=$dev2 out
cat $DF

#
# check that pvscan --cache -aay does the right thing:
#
# idname and devname change, both become incorrect
# . change idname&devname to something outside DF
# . swap idname&devname of two DF entries
#

# edit DF idname&devname, s/dev1/dev3/, where new dev is not in DF

sed -e "s|DEVNAME=$dev1|DEVNAME=$dev3|" $ORIG > tmp1.devices
sed -e "s|IDNAME=$dev1|IDNAME=$dev3|" tmp1.devices > $DF
cat $DF
_clear_online_files
pvscan --cache -aay $dev1
pvscan --cache -aay $dev2
pvscan --cache -aay $dev3
cat $DF
# pvscan does not fix DF
grep $dev3 $DF
not grep $dev1 $DF
ls "$RUNDIR/lvm/pvs_online/$PVID1"
ls "$RUNDIR/lvm/pvs_online/$PVID2"
not ls "$RUNDIR/lvm/pvs_online/$PVID3"
check lv_field $vg1/$lv1 lv_active "active"
# pvs updates the DF
pvs |tee out
grep $dev1 out
grep $dev2 out
not grep $dev3 out
grep $dev1 $DF
grep $dev2 $DF
not grep $dev3 $DF
vgchange -an $vg1

# edit DF idname&devname, swap dev1 and dev2

vgremove -y $vg1
vgcreate $vg1 $dev1
lvcreate -n $lv1 -l1 -an $vg1
vgcreate $vg2 $dev2
lvcreate -n $lv2 -l1 -an $vg2

cat $DF
sed -e "s|DEVNAME=$dev1|DEVNAME=tmpname|" $ORIG > tmp1.devices
sed -e "s|DEVNAME=$dev2|DEVNAME=$dev1|" tmp1.devices > tmp2.devices
sed -e "s|DEVNAME=tmpname|DEVNAME=$dev2|" tmp2.devices > tmp3.devices
sed -e "s|IDNAME=$dev1|IDNAME=tmpname|" tmp3.devices > tmp4.devices
sed -e "s|IDNAME=$dev2|IDNAME=$dev1|" tmp4.devices > tmp5.devices
sed -e "s|IDNAME=tmpname|IDNAME=$dev2|" tmp5.devices > $DF
cat $DF

_clear_online_files

# pvscan creates the correct online files and activates correct vg
pvscan --cache -aay $dev1
ls "$RUNDIR/lvm/pvs_online/$PVID1"
ls "$RUNDIR/lvm/vgs_online/$vg1"
not ls "$RUNDIR/lvm/pvs_online/$PVID2"
not ls "$RUNDIR/lvm/vgs_online/$vg2"
# don't use lvs because it would fix DF before we check it
dmsetup status $vg1-$lv1
not dmsetup status $vg2-$lv2

pvscan --cache -aay $dev2
ls "$RUNDIR/lvm/pvs_online/$PVID2"
ls "$RUNDIR/lvm/vgs_online/$vg2"
dmsetup status $vg2-$lv2

pvscan --cache -aay $dev3
not ls "$RUNDIR/lvm/pvs_online/$PVID3"

# pvscan did not correct DF
cat $DF
grep $PVID1 $DF |tee out
grep $dev2 out
not grep $dev1 out
grep $PVID2 $DF |tee out
grep $dev1 out
not grep $dev2 out

# pvs corrects DF
pvs
grep $PVID1 $DF |tee out
grep $dev1 out
not grep $dev2 out
grep $PVID2 $DF |tee out
grep $dev2 out
not grep $dev1 out

vgremove -ff $vg1