mdadm/tests/utils

# set of functions used to test policy framework with assemble, incremental and Monitor

set +e
#create links to be able to use domains
for d in 0 1 2 3 4 5 6 7 8 9 10 11 12
do
       eval ln -s \$dev$d /dev/disk/by-path/loop$d
       eval d$d="loop$d"
       eval mdadm --zero-superblock \$dev$d
done

devices="/dev/loop[0-9] /dev/loop10 /dev/loop11 /dev/loop12"

# on failure print out few things before exit
# uses testdsc and platform global variables
err(){
       echo >&2 "ERROR: $*"
       cat $config >&2 || true
       cat /proc/mdstat >&2
       [ -z "$testdsc" ] || { echo >&2 $platform: $testdsc "- failed"; }
       ps -e | grep mdadm >&2 || true
       if [ $listfailed == "yes" ]; then
               [ "$verbose" != "yes" ] || echo ---FAILED---
               flist="$flist \n $platform $testdsc"
               failed=1
       else
               exit 1
       fi
}

# set test description
dsc(){
       failed=0
       testdsc="$*"
       [ "$verbose" != "yes" ] || echo $testdsc
}

killmonitor(){
       [ -z "$monitorpid" ] || { kill -9 $monitorpid; unset monitorpid; }
}

tidyup(){
       killmonitor
       mdadm -Ss || true
       mdadm -Ss
       mdadm --zero-superblock $devices || true
       udevadm settle
       rm -f $config
}

trap tidyup 0 1 2 3 15

# create a RAID 1 array or container and subarray(s) on 2 disks
# if platform not specified imsm is used
# if subsize is given, first subarray is created with given size and second one on remaining space
ccv(){
       # mddevno used to name created array
       local mddevno="$1"
       # numbers of devices to be used in array
       local devno1="$2"
       local devno2="$3"
       local platform="$4"
       local subsize="$5"
       local onearray="$6"
       [ -n "$platform" ] || platform="imsm"
       if [ "$platform" == "imsm" ] || [ "$platform" == "ddf" ]; then
               eval mdadm -CR /dev/md/con$mddevno -e $platform -n 2 \$dev$devno1 \$dev$devno2
               udevadm settle
               [ -z "$subsize" ] || eval mdadm -CR sub$mddevno"_" -l 1 -n 2 /dev/md/con$mddevno -z $subsize
               [ -n "$onearray" ] || eval mdadm -CR sub$mddevno -l 1 -n 2 /dev/md/con$mddevno
       else
               [ -z "$subsize" ] || sizepar="-z $subsize"
               eval mdadm -CR arr$mddevno -e $platform -l 1 -n 2 \$dev$devno1 \$dev$devno2 $sizepar
               unset sizepar
       fi
}

# get container and subarray using given device from mdstat
# sets global variables c and v
getarray(){
       local devname=`basename $1`
       local platformtype=`grep -A 1 $devname /proc/mdstat | awk '/active/ {getline; print $4 }' | awk -F ":" 'END {print $1}'`
       c=`grep "inactive.*$devname" /proc/mdstat | awk -F " " '{print $1}'`
       v=`grep " active.*$devname" /proc/mdstat | awk -F " " '{print $1}'`
       [ "$platformtype" == "external" ] || c=$v
}

# check if given device belongs to any container and subarray
# if $2 given then only container checked
chkarray(){
       local devname="$1"
       local subcheck="$2"
       getarray $devname
       [ -n "$c" ] || err "$devname not in any container"
       [ -n "$subcheck" ] || [ -n "$v" ] || err " $devname not in subarray"
}

# test if two devices in the same container/subarray
# $1 $2 - devices
# $3 don't check subarrays, only containers
tst(){
       local device1=`basename $1`
       local device2=`basename $2`
       local subcheck="$3"
       chkarray $device1 $subcheck
       local x="$c"
       local y="$v"
       chkarray $device2 $subcheck
       [ "$c" == "$x" ] || err "$device1 and $device2 not in the same container"
       [ -n "$subcheck" ] || [ "$v" == "$y" ] || err "$device1 and $device2 not in the same subarray"
}

# same as tst, just use numbers of devices instead of names as parameters
dtst(){
       local devno1="$1"
       local devno2="$2"
       local subcheck="$3"
       eval tst \$dev$devno1 \$dev$devno2 $subcheck
}

# create containers/subarrays, check if created properly,
# set global variables c$mddevno v$mddevno, usually c0=md127, v0=md126 , etc.
setupdevs(){
       local mddevno="$1"
       local devno1="$2"
       local devno2="$3"
       local p="$4"
       local subsize="$5"
       local onearray="$6"
       [ -n "$p" ] || p=$platform
       ccv $mddevno $devno1 $devno2 $p $subsize $onearray
       dtst $devno1 $devno2
       eval c$mddevno=\"$c\"
       eval v$mddevno=\"$v\"
}

# check if given spare in container
# usage: chkspare container spare [n]  (n if spare shouldn't be in container)
chkspare(){
       local container=`basename $1`
       local spare=$2
       local expected=$3
       getarray $spare
       [ -n "$expected" ] || expected="y"
       if [ "$expected" == "y" ]; then
               [ "$c" == "$container" ] || err "$spare not in container $container"
       else
               [ "$c" != "$container" ] || err "$spare in container $container"
       fi
}

#check if spare was moved from one container to another
# args: from_container to_container spare [yn]
# n when spare should remain in original container
chksparemoved(){
       sleep $sleeptime
       from_container="$1"
       to_container="$2"
       spare="$3"
       expected="$4"
       [ -n "$expected" ] || expected="y"
       notexpected="n"; [ "$expected" == "y" ] || notexpected="y"
       chkspare $from_container $spare $notexpected
       [ $failed -eq 1 ] || chkspare $to_container $spare $expected
}


# for domains defined through policy
createconfig(){
if [ "$1" != "a" ]; then
{
       domain=$1
       metadata=$2
       action=$3
       while [ -n "$4" ]; do
               echo="policy domain=$domain"
               [ "$metadata" == "noplatform" ] ||  echo="$echo metadata=$metadata"
               echo="$echo path=loop$4"
               echo="$echo action=$action"
               echo "$echo"
               shift
       done
} >> $config
else
{
       echo "DEVICES $devlist /dev/md1*"
       mdadm -Ebs
} >  $config
fi
#[ "$verbose" != "yes" ] || cat $config | grep policy || true
}