added bonding mode configuration support

@@ -18,6 +18,8 @@
 
 CMD="$1"; shift;
 
+DEFAULT_BONDING_MODE='802.3ad'
+
 eerror() {
 	echo "$@" >&2
 }
@@ -363,12 +365,27 @@ case "$CMD" in
 		#CREATING OF NECESSARY D1Q
 
 		for D1Q_IFACE in ${D1Q_IFACES[@]}; do
+
+			# Fixing bond-ifaces if exists
 			SLAVES_VARIABLE="${D1Q_IFACE}_SLAVES"
 			SLAVES_VARIABLE="${SLAVES_VARIABLE//[.]/_}[@]"
+			MODE_VARIABLE="${D1Q_IFACE}_MODE"
+			MODE="${!MODE_VARIABLE}"; [[ "$MODE" = "" ]] && MODE="$DEFAULT_BONDING_MODE"
 			D1Q_EXISTS=0
 			for OLD_D1Q_IFACE in ${OLD_D1Q_IFACES[@]}; do
 				if [[ "$D1Q_IFACE" == "$OLD_D1Q_IFACE" ]]; then #it's here. Let's fix it.
 					OLD_SLAVES="`cat /sys/class/net/"$OLD_D1Q_IFACE"/bonding/slaves`"
+					OLD_BONDING_MODE="`cat /sys/class/net/"$OLD_D1Q_IFACE"/bonding/mode`"
+
+					if [[ "$OLD_BONDING_MODE" != "${MODE}" ]]; then
+						for OLD_SLAVE in ${OLD_SLAVES[@]}; do
+							echo "-$OLD_SLAVE" > /sys/class/net/"$OLD_D1Q_IFACE"/bonding/slaves
+						done
+						ip link set dev "$OLD_D1Q_IFACE" down
+						echo "$MODE" > /sys/class/net/"$OLD_D1Q_IFACE"/bonding/mode
+						OLD_SLAVES=()
+					fi
+
 					for SLAVE in "${!SLAVES_VARIABLE}"; do
 						SLAVE_EXISTS=0
 						for OLD_SLAVE in ${OLD_SLAVES[@]}; do
@@ -389,9 +406,11 @@ case "$CMD" in
 				fi
 			done
 
+			# Creating bond-ifaces
 			if [[ "$D1Q_EXISTS" == 0 ]]; then #make all
 				#echo "echo '+$D1Q_IFACE' > /sys/class/net/bonding_masters"
 				echo "+$D1Q_IFACE" > /sys/class/net/bonding_masters
+				echo "$MODE" > /sys/class/net/"$D1Q_IFACE"/bonding/mode
 
 				for SLAVE in "${!SLAVES_VARIABLE}"; do
 					#echo "ip link set dev $SLAVE down"  #enslaved int should be shutted down

@@ -5,6 +5,8 @@ D1Q_IFACES=(bond0 bond1)
 bond0_SLAVES=(eth0 eth1)
 bond1_SLAVES=(eth2)
 
+bond0_MODE=balance-rr
+
 # vlan.subvlan:bridge-name 
 #     if vlan.subvlan is set to "" then bridge is created without creating (and enslaving) the vlan interface
 #     if bridge is set to "" then vlan interface is created without creating the bridge (to be enslaved by)