static executor: Add support for IPv4 'pointopoint' addresses.

Closes #96

Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>

executor-scripts/linux/static

@@ -2,6 +2,8 @@
 
 set -e
 
+[ -z "$VERBOSE" ] || set -x
+
 [ -z "$IF_METRIC" ] && IF_METRIC="1"
 [ -n "$IF_VRF_TABLE" ] && VRF_TABLE="table $IF_VRF_TABLE"
 [ -n "$IF_VRF_MEMBER" ] && VRF_TABLE="vrf $IF_VRF_MEMBER"
@@ -20,7 +22,13 @@ addr_family() {
 configure_addresses() {
 	for i in $(ifquery -p address -i $INTERFACES_FILE $IFACE); do
 		addrfam=$(addr_family $i)
-		${MOCK} ip $addrfam addr $1 $i dev $IFACE
+		if [ "${IF_POINTOPOINT}" -a "${addrfam}" = "-4" ]; then
+			PEER="peer ${IF_POINTOPOINT}"
+		else
+			PEER=""
+		fi
+
+		${MOCK} ip $addrfam addr $1 $i $PEER dev $IFACE
 	done
 }
 
@@ -31,8 +39,6 @@ configure_gateways() {
 	done
 }
 
-[ -z "$VERBOSE" ] || set -x
-
 case "$PHASE" in
 up)
 	configure_addresses add