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# Copyright 2004-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
bridge_depend() {
before interface macnet
program /sbin/brctl
}
_config_vars="$_config_vars bridge bridge_add brctl"
_is_bridge() {
brctl show 2>/dev/null | grep -q "^${IFACE}[[:space:]]"
}
bridge_pre_start() {
local ports= brif= iface="${IFACE}" e= x=
local ports="$(_get_array "bridge_${IFVAR}")"
local opts="$(_get_array "brctl_${IFVAR}")"
eval brif=\$bridge_add_${IFVAR}
[ -z "${ports}" -a -z "${brif}" -a -z "${opts}" ] && return 0
[ -n "${ports}" ] && bridge_post_stop
(
if [ -z "${ports}" -a -n "${brif}" ] ; then
ports="${IFACE}"
IFACE="${brif}"
else
ports="${ports}"
metric=1000
fi
if ! _is_bridge; then
ebegin "Creating bridge ${IFACE}"
if ! brctl addbr "${IFACE}" ; then
eend 1
return 1
fi
fi
local IFS="
"
for x in ${opts}; do
unset IFS
set -- ${x}
x=$1
shift
set -- "${x}" "${IFACE}" "$@"
brctl "$@"
done
if [ -n "${ports}" ] ; then
einfo "Adding ports to ${IFACE}"
eindent
for x in ${ports}; do
ebegin "${x}"
ifconfig "${x}" promisc up
if ! brctl addif "${IFACE}" "${x}" ; then
ifconfig "${x}" -promisc 2>/dev/null
eend 1
return 1
fi
eend 0
done
eoutdent
fi
) || return 1
# Bring up the bridge
_up
}
bridge_post_stop() {
local port= ports= delete=false extra=
if _is_bridge ; then
ebegin "Destroying bridge ${IFACE}"
_down
ports="$( brctl show 2>/dev/null | \
sed -n -e '/^'"${IFACE}"'[[:space:]]/,/^\S/ { /^\('"${IFACE}"'[[:space:]]\|\t\)/s/^.*\t//p }')"
delete=true
iface=${IFACE}
eindent
else
# Work out if we're added to a bridge for removal or not
eval set -- $(brctl show 2>/dev/null | sed -e "s/'/'\\\\''/g" -e "s/$/'/g" -e "s/^/'/g")
local line=
for line in "$@" ; do
set -- ${line}
if [ "$3" = "${IFACE}" ] ; then
iface=$1
break
fi
done
[ -z "${iface}" ] && return 0
extra=" from ${iface}"
fi
for port in ${ports} ; do
ebegin "Removing port ${port}${extra}"
ifconfig "${port}" -promisc
brctl delif "${iface}" "${port}"
eend $?
done
if ${delete} ; then
eoutdent
brctl delbr "${iface}"
eend $?
fi
return 0
}
# vim: set ts=4 :
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