# Copyright (C) 2008 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
test_description="foo" # silence test-lib for now
./test-lib.sh
aux() {
# use just "$@" for verbose operation
"$@" > /dev/null 2> /dev/null
#"$@"
}
STACKTRACE() {
trap - ERR;
i=0;
while FUNC=${FUNCNAME[$i]}; test "$FUNC" != "main"; do
echo "$i ${FUNC}() called from ${BASH_SOURCE[$i]}:${BASH_LINENO[$i]}"
i=$(($i + 1));
done
}
teardown() {
echo $LOOP
echo $PREFIX
test -n "$PREFIX" && {
rm -rf $G_root_/dev/$PREFIX*
while dmsetup table | grep -q ^$PREFIX; do
for s in `dmsetup table | grep ^$PREFIX| awk '{ print substr($1,1,length($1)-1) }'`; do
dmsetup resume $s 2>/dev/null > /dev/null || true
dmsetup remove $s 2>/dev/null > /dev/null || true
done
done
}
test -n "$LOOP" && losetup -d $LOOP
test -n "$LOOPFILE" && rm -f $LOOPFILE
}
prepare_loop() {
size=$1
test -n "$size" || size=32
test -n "$LOOP" && return 0
trap 'aux teardown_' EXIT # don't forget to clean up
trap 'set +vex; STACKTRACE; set -vex' ERR
#trap - ERR
LOOPFILE="$PWD/test.img"
dd if=/dev/zero of="$LOOPFILE" bs=$((1024*1024)) count=1 seek=$(($size-1))
if LOOP=`losetup -s -f "$LOOPFILE" 2>/dev/null`; then
return 0
elif LOOP=`losetup -f` && losetup $LOOP "$LOOPFILE"; then
# no -s support
return 0
else
# no -f support
# Iterate through $G_dev_/loop{,/}{0,1,2,3,4,5,6,7}
for slash in '' /; do
for i in 0 1 2 3 4 5 6 7; do
local dev=$G_dev_/loop$slash$i
! losetup $dev >/dev/null 2>&1 || continue
# got a free
losetup "$dev" "$LOOPFILE"
LOOP=$dev
break
done
if [ -n "$LOOP" ]; then
break
fi
done
test -n "$LOOP" # confirm or fail
return 0
fi
exit 1 # should not happen
}
prepare_devs() {
local n="$1"
test -z "$n" && n=3
local devsize="$2"
test -z "$devsize" && devsize=33
local pvname="$3"
test -z "$pvname" && pvname="pv"
prepare_loop $(($n*$devsize))
PREFIX="LVMTEST$$"
if ! loopsz=`blockdev --getsz $LOOP 2>/dev/null`; then
loopsz=`blockdev --getsize $LOOP 2>/dev/null`
fi
local size=$(($loopsz/$n))
for i in `seq 1 $n`; do
local name="${PREFIX}$pvname$i"
local dev="$G_dev_/mapper/$name"
eval "dev$i=$dev"
devs="$devs $dev"
echo 0 $size linear $LOOP $((($i-1)*$size)) > $name.table
dmsetup create $name $name.table
dmsetup resume $name
done
# set up some default names
vg=${PREFIX}vg
vg1=${PREFIX}vg1
vg2=${PREFIX}vg2
lv=LV
lv1=LV1
lv2=LV2
lv3=LV3
lv4=LV4
}
disable_dev() {
for dev in "$@"; do
# first we make the device inaccessible
echo 0 10000000 error | dmsetup load $dev
dmsetup resume $dev
# now let's try to get rid of it if it's unused
#dmsetup remove $dev
done
}
enable_dev() {
for dev in "$@"; do
local name=`echo "$dev" | sed -e 's,.*/,,'`
dmsetup create $name $name.table || dmsetup load $name $name.table
dmsetup resume $dev
done
}
backup_dev() {
for dev in "$@"; do
dd if=$dev of=$dev.backup bs=1024
done
}
restore_dev() {
for dev in "$@"; do
test -e $dev.backup || {
echo "Internal error: $dev not backed up, can't restore!"
exit 1
}
dd of=$dev if=$dev.backup bs=1024
done
}