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