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#!/bin/sh
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################################################################################
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# test_WAN_triple-isolate__piece_of_cake.qos (Cero3 Shaper)
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#
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# Abstract:
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# This is a one band cake and ipv6 enabled shaping script for Ethernet
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# gateways. This exists for the purpose of testing cake's different isolation
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# options, specifically the non-directional triple-isolate feature that promises
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# to finally tackle the bit-torrent hole in simple.qos.
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# This specific version is supposed to be used on WAN interfaces:
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# the script's ingress direction equals the internet/WAN download direction
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# the script's egress direction equals the internet/WAN upload direction
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#
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################################################################################
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# Copyright (C) 2012-2016
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# Michael D. Taht, Toke Høiland-Jørgensen, Sebastian Moeller
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#
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################################################################################
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. ${SQM_LIB_DIR}/defaults.sh
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################################################################################
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# this will only work with cake as qdisc...
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QDISC=cake
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# to keep this as simple as possible we ignore the *_CAKE_OPTS from defaults.sh
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INGRESS_CAKE_OPTS="besteffort triple-isolate"
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EGRESS_CAKE_OPTS="besteffort triple-isolate"
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egress() {
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sqm_debug "egress"
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$TC qdisc del dev $IFACE root 2>/dev/null
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$TC qdisc add dev $IFACE root $( get_stab_string ) cake bandwidth ${UPLINK}kbit $( get_cake_lla_string ) ${EGRESS_CAKE_OPTS} ${EQDISC_OPTS}
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}
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ingress() {
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sqm_debug "ingress"
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$TC qdisc del dev $IFACE handle ffff: ingress 2>/dev/null
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$TC qdisc add dev $IFACE handle ffff: ingress
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$TC qdisc del dev $DEV root 2>/dev/null
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$TC qdisc add dev $DEV root $( get_stab_string ) cake bandwidth ${DOWNLINK}kbit $( get_cake_lla_string ) ${INGRESS_CAKE_OPTS} ${IQDISC_OPTS}
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$IP link set dev $DEV up
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# redirect all IP packets arriving in $IFACE to ifb0
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$TC filter add dev $IFACE parent ffff: protocol all prio 10 u32 \
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match u32 0 0 flowid 1:1 action mirred egress redirect dev $DEV
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}
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sqm_start() {
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[ -n "$IFACE" ] || return 1
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do_modules
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verify_qdisc $QDISC "cake" || return 1
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sqm_debug "Starting ${SCRIPT}"
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[ -z "$DEV" ] && DEV=$( get_ifb_for_if ${IFACE} )
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if [ "${UPLINK}" -ne 0 ];
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then
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egress
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sqm_debug "egress shaping activated"
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else
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sqm_debug "egress shaping deactivated"
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$TC qdisc del dev ${IFACE} root 2> /dev/null
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fi
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if [ "${DOWNLINK}" -ne 0 ];
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then
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verify_qdisc ingress "ingress" || return 1
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ingress
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sqm_debug "ingress shaping activated"
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else
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sqm_debug "ingress shaping deactivated"
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$TC qdisc del dev ${DEV} root 2> /dev/null
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$TC qdisc del dev ${IFACE} ingress 2> /dev/null
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fi
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return 0
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}
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