174 lines
3.5 KiB
Bash
174 lines
3.5 KiB
Bash
# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
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# Released under the 2-clause BSD license.
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bonding_depend()
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{
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before interface macchanger
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}
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_config_vars="$_config_vars slaves"
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_is_bond()
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{
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[ -f "/proc/net/bonding/${IFACE}" ]
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}
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bonding_pre_start()
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{
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local x= s= n= slaves= primary=
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slaves="$(_get_array "slaves_${IFVAR}")"
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unset slaves_${IFVAR}
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eval primary="\$primary_${IFVAR}"
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unset primary_${IFVAR}
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[ -z "${slaves}" ] && return 0
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# Load the kernel module if required
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if [ ! -d /proc/net/bonding ]; then
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if ! modprobe bonding; then
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eerror "Cannot load the bonding module"
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return 1
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fi
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fi
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# We can create the interface name we like now, but this
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# requires sysfs
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if ! _exists && [ -d /sys/class/net ]; then
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echo "+${IFACE}" > /sys/class/net/bonding_masters
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fi
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_exists true || return 1
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if ! _is_bond; then
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eerror "${IFACE} is not capable of bonding"
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return 1
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fi
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# Interface must be down in order to configure
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_down
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# Configure the bond mode, then we can reloop to ensure we configure
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# All other options
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for x in /sys/class/net/"${IFACE}"/bonding/mode; do
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[ -f "${x}" ] || continue
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n=${x##*/}
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eval s=\$${n}_${IFVAR}
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if [ -n "${s}" ]; then
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einfo "Setting ${n}: ${s}"
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echo "${s}" >"${x}" || \
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eerror "Failed to configure $n (${n}_${IFVAR})"
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fi
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done
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# Nice and dynamic for remaining options:)
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for x in /sys/class/net/"${IFACE}"/bonding/*; do
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[ -f "${x}" ] || continue
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n=${x##*/}
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eval s=\$${n}_${IFVAR}
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[ "${n}" != "mode" ] || continue
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if [ -n "${s}" ]; then
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einfo "Setting ${n}: ${s}"
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echo "${s}" >"${x}" || \
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eerror "Failed to configure $n (${n}_${IFVAR})"
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fi
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done
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ebegin "Adding slaves to ${IFACE}"
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eindent
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einfo "${slaves}"
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# Check that our slaves exist
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(
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for IFACE in ${slaves}; do
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_exists true || return 1
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done
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# Must force the slaves to a particular state before adding them
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for IFACE in ${slaves}; do
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_delete_addresses
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_down
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done
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)
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# now force the master to up
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_up
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# finally add in slaves
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# things needed in the process, and if they are done by ifenslave, openrc, and/or the kernel.
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# down new slave interface: ifenslave, openrc
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# set mtu: ifenslave, kernel
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# set slave MAC: ifenslave, kernel
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eoutdent
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if [ -d /sys/class/net ]; then
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sys_bonding_path=/sys/class/net/"${IFACE}"/bonding
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local oiface
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oiface=$IFACE
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if [ -n "${primary}" ]; then
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IFACE=$primary
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_down
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IFACE=$oiface
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echo "+${primary}" >$sys_bonding_path/slaves
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echo "${primary}" >$sys_bonding_path/primary
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fi
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for s in ${slaves}; do
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[ "${s}" = "${primary}" ] && continue
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if ! grep -q ${s} $sys_bonding_path/slaves; then
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IFACE=$s
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_down
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IFACE=$oiface
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echo "+${s}" >$sys_bonding_path/slaves
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fi
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done
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else
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/sbin/ifenslave "${IFACE}" ${slaves} >/dev/null
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fi
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eend $?
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return 0 #important
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}
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bonding_stop()
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{
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_is_bond || return 0
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local slaves= s=
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slaves=$( \
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sed -n -e 's/^Slave Interface: //p' "/proc/net/bonding/${IFACE}" \
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| tr '\n' ' ' \
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)
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[ -z "${slaves}" ] && return 0
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# remove all slaves
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ebegin "Removing slaves from ${IFACE}"
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eindent
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einfo "${slaves}"
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eoutdent
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if [ -d /sys/class/net ]; then
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for s in ${slaves}; do
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echo -"${s}" > /sys/class/net/"${IFACE}"/bonding/slaves
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done
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else
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/sbin/ifenslave -d "${IFACE}" ${slaves}
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fi
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# reset all slaves
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(
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for IFACE in ${slaves}; do
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if _exists; then
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_delete_addresses
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_down
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fi
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done
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)
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_down
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if [ -d /sys/class/net ]; then
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echo "-${IFACE}" > /sys/class/net/bonding_masters
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fi
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eend 0
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return 0
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}
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