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Viewing changes to network-hooks.d/bridge

  • Committer: Teddy Hogeborn
  • Date: 2010-10-11 17:32:23 UTC
  • mfrom: (458 mandos-local)
  • mto: (237.4.29 release)
  • mto: This revision was merged to the branch mainline in revision 459.
  • Revision ID: teddy@fukt.bsnet.se-20101011173223-tgrfs9i3dweqt0kn
Merge from trunk.

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network-hooks.d/bridge
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#!/bin/sh
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#
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# This is an example of a Mandos client network hook.  This hook
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# brings up a bridge interface as specified in a separate
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# configuration file.  To be used, this file and any needed
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# configuration file(s) should be copied into the
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# /etc/mandos/network-hooks.d directory.
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# 
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# Copyright © 2011 Teddy Hogeborn
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# Copyright © 2011 Björn Påhlsson
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# 
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# Copying and distribution of this file, with or without modification,
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# are permitted in any medium without royalty provided the copyright
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# notice and this notice are preserved.  This file is offered as-is,
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# without any warranty.
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set -e
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CONFIG="$MANDOSNETHOOKDIR/bridge.conf"
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addrtoif(){
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    grep -liFe "$1" /sys/class/net/*/address \
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        | sed -e 's,.*/\([^/]*\)/[^/]*,\1,' -e "/^${BRIDGE}\$/d"
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}
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# Read config file, which must set "BRIDGE", "PORT_ADDRESSES", and
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# optionally "IPADDRS" and "ROUTES".
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if [ -e "$CONFIG" ]; then
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    . "$CONFIG"
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fi
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if [ -z "$BRIDGE" -o -z "$PORT_ADDRESSES" ]; then
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    exit
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fi
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if [ -n "$DEVICE" -a "$DEVICE" != "$BRIDGE" ]; then
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    exit
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fi
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brctl="/sbin/brctl"
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for b in "$brctl" /usr/sbin/brctl; do
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    if [ -e "$b" ]; then
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        brctl="$b"
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        break
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    fi
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done
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case "$1" in
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    start)
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        "$brctl" addbr "$BRIDGE"
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        for address in $PORT_ADDRESSES; do
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            interface=`addrtoif "$address"`
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            "$brctl" addif "$BRIDGE" "$interface"
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            ip link set dev "$interface" up
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        done
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        ip link set dev "$BRIDGE" up
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        sleep "${DELAY%%.*}"
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        if [ -n "$IPADDRS" ]; then
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            for ipaddr in $IPADDRS; do
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                ip addr add "$ipaddr" dev "$BRIDGE"
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            done
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        fi
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        if [ -n "$ROUTES" ]; then
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            for route in $ROUTES; do
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                ip route add "$route" dev "$BRIDGE"
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            done
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        fi
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        ;;
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    stop)
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        ip link set dev "$BRIDGE" down
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        for address in $PORT_ADDRESSES; do
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            interface=`addrtoif "$address"`
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            ip link set dev "$interface" down
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            "$brctl" delif "$BRIDGE" "$interface"
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        done
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        "$brctl" delbr "$BRIDGE"
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        ;;
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    files)
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        echo /bin/ip
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        echo "$brctl"
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        ;;
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    modules)
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        echo bridge
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        ;;
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esac