bond: add minimal support for interface bonding (FS#24802)

Contributed-by: Byron Williams <byron@112percent.com>
Signed-off-by: Rémy Oudompheng <remy@archlinux.org>

README

@@ -14,6 +14,9 @@ For wireless support:
 - wpa_supplicant
 - wpa_actiond: for automatic connection
 
+For bonding support
+- ifenslave
+
 Deprecated dependencies:
 - net-tools (only used in IFOPTS option)
 - wireless_tools (only used for IWCONFIG option, still necessary for wireless connection)

src/connections/bond

+#! /bin/bash
+. /usr/lib/network/network
+IFENSLAVE="/sbin/ifenslave"
+
+bond_up() {
+    load_profile "$1"
+
+    if [ -e /sys/class/net/$INTERFACE ]; then
+        report_fail "Interface $INTERFACE already exists."
+        exit 1
+    else
+        ip link add dev $INTERFACE type bond
+    fi
+    bring_interface up "$INTERFACE"
+    "$CONN_DIR/ethernet" up "$1"
+
+    for slave in ${SLAVE_INTERFACES[@]}; do
+        bring_interface up "$INTERFACE"
+        $IFENSLAVE $INTERFACE $slave
+    done
+
+    return 0
+}
+
+bond_down() {
+    load_profile "$1"
+
+    for slave in ${SLAVE_INTERFACES[@]}; do
+        $IFENSLAVE $INTERFACE -d $slave
+    done
+
+    "$CONN_DIR/ethernet" down "$1"
+    bring_interface down "$INTERFACE"
+    ip link delete $INTERFACE &>/dev/null
+    return 0
+}
+
+bond_status() {
+    if [ -e /sys/class/net/$INTERFACE ]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+bond_$1 "$2"
+exit $?
+
+# vim: set ts=4 et sw=4: