# Copyright (c) 2007-2008 Roy Marples # All rights reserved. Released under the 2-clause BSD license. bonding_depend() { before interface macchanger } _config_vars="$_config_vars slaves" _is_bond() { [ -f "/proc/net/bonding/${IFACE}" ] } bonding_pre_start() { local x= s= n= slaves= primary= slaves="$(_get_array "slaves_${IFVAR}")" unset slaves_${IFVAR} eval primary="\$primary_${IFVAR}" unset primary_${IFVAR} [ -z "${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 # Interface must be down in order to configure _down # Configure the bond mode, then we can reloop to ensure we configure # All other options for x in /sys/class/net/"${IFACE}"/bonding/mode; do [ -f "${x}" ] || continue n=${x##*/} eval s=\$${n}_${IFVAR} if [ -n "${s}" ]; then einfo "Setting ${n}: ${s}" echo "${s}" >"${x}" || \ eerror "Failed to configure $n (${n}_${IFVAR})" fi done # Nice and dynamic for remaining options:) for x in /sys/class/net/"${IFACE}"/bonding/*; do [ -f "${x}" ] || continue n=${x##*/} eval s=\$${n}_${IFVAR} [ "${n}" != "mode" ] || continue if [ -n "${s}" ]; then einfo "Setting ${n}: ${s}" echo "${s}" >"${x}" || \ eerror "Failed to configure $n (${n}_${IFVAR})" fi done 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 ${slaves}; do _delete_addresses _down done ) # now force the master to up _up # finally add in slaves eoutdent if [ -d /sys/class/net ]; then if [ -n "${primary}" ]; then echo "+${primary}" >/sys/class/net/"${IFACE}"/bonding/slaves echo "${primary}" >/sys/class/net/"${IFACE}"/bonding/primary slaves="${slaves/${primary}/}" fi for s in ${slaves}; do echo "+${s}" >/sys/class/net/"${IFACE}"/bonding/slaves done else /sbin/ifenslave "${IFACE}" ${slaves} >/dev/null fi 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 if [ -d /sys/class/net ]; then for s in ${slaves}; do echo -"${s}" > /sys/class/net/"${IFACE}"/bonding/slaves done else /sbin/ifenslave -d "${IFACE}" ${slaves} fi # reset all slaves ( for IFACE in ${slaves}; do if _exists; then _delete_addresses _down fi done ) _down if [ -d /sys/class/net ]; then echo "-${IFACE}" > /sys/class/net/bonding_masters fi eend 0 return 0 }