1 files changed, 101 insertions, 0 deletions
diff --git a/net/bonding.sh b/net/bonding.sh
new file mode 100644
index 00000000..69de32aa
--- /dev/null
+++ b/net/bonding.sh
@@ -0,0 +1,101 @@
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+bonding_depend()
+{
+	before interface macchanger
+	program /sbin/ifenslave
+}
+
+_config_vars="$_config_vars slaves"
+
+_is_bond()
+{
+	[ -f "/proc/net/bonding/${IFACE}" ]
+}
+
+bonding_pre_start()
+{
+	local s= slaves="$(_get_array "slaves_${IFVAR}")" 
+
+	[ -z "${slaves}" ] && return 0
+
+	# Load the kernel module if required
+	if [ ! -d /proc/net/bonding ]; then
+		if ! modprobe bonding; then
+			eerror "Cannot load the bonding module"
+			return 1
+		fi
+	fi
+
+	# We can create the interface name we like now, but this
+	# requires sysfs
+	if ! _exists && [ -d /sys/class/net ]; then
+		echo "+${IFACE}" > /sys/class/net/bonding_masters
+	fi
+	_exists true || return 1
+
+	if ! _is_bond; then
+		eerror "${IFACE} is not capable of bonding"
+		return 1
+	fi
+
+	ebegin "Adding slaves to ${IFACE}"
+	eindent
+	einfo "${slaves}"
+
+	# Check that our slaves exist
+	(
+	for IFACE in ${slaves}; do
+		_exists true || return 1
+	done
+
+	# Must force the slaves to a particular state before adding them
+	for IFACE in ${slaves}; do
+		_delete_addresses
+		_up
+	done
+	)
+
+	# now force the master to up
+	_up
+
+	# finally add in slaves
+	eoutdent
+	/sbin/ifenslave "${IFACE}" ${slaves} >/dev/null
+	eend $?
+
+	return 0 #important
+}
+
+bonding_stop()
+{
+	_is_bond || return 0	
+
+	local slaves= s=
+	slaves=$( \
+		sed -n -e 's/^Slave Interface: //p' "/proc/net/bonding/${IFACE}" \
+		| tr '\n' ' ' \
+	)
+	[ -z "${slaves}" ] && return 0
+
+	# remove all slaves
+	ebegin "Removing slaves from ${IFACE}"
+	eindent
+	einfo "${slaves}"
+	eoutdent
+	/sbin/ifenslave -d "${IFACE}" ${slaves}
+
+	# reset all slaves
+	(
+	for IFACE in ${slaves}; do
+		if _exists; then
+			_delete_addresses
+			_down
+		fi
+	done
+	)
+
+	eend 0
+	return 0
+}