105 lines
4.1 KiB
Plaintext
105 lines
4.1 KiB
Plaintext
################################################################################
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# simplest.qos (Cero3 Simple Shaper)
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#
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# Abstract:
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# This is a single band fq_codel and ipv6 enabled shaping script for Ethernet
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# gateways. This is nearly the simplest possible. With FQ_CODEL, the sparseness
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# priority will work pretty well for a casual network. Flow-hashes should not
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# overlap much with only a few users.
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#
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# References:
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# This alternate shaper attempts to go for 1/u performance in a clever way
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# http://git.coverfire.com/?p=linux-qos-scripts.git;a=blob;f=src-3tos.sh;hb=HEAD
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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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. ${SQM_LIB_DIR}/defaults.sh
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################################################################################
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cake_egress()
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{
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$TC qdisc add dev $IFACE root `get_stab_string` cake bandwidth ${UPLINK}kbit besteffort `get_cake_lla_string` ${EQDISC_OPTS}
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}
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egress() {
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LQ="quantum `get_htb_quantum $IFACE ${UPLINK} ${ESHAPER_QUANTUM_DUR_US}`"
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BURST="`get_htb_burst $IFACE ${UPLINK} ${ESHAPER_BURST_DUR_US}`"
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SILENT=1 $TC qdisc del dev $IFACE root
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case $QDISC in
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cake*) cake_egress; return ;;
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esac
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$TC qdisc add dev $IFACE root handle 1: `get_stab_string` htb default 10
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$TC class add dev $IFACE parent 1: classid 1:1 htb $LQ rate ${UPLINK}kbit ceil ${UPLINK}kbit $BURST `get_htb_adsll_string`
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$TC class add dev $IFACE parent 1:1 classid 1:10 htb $LQ rate ${UPLINK}kbit ceil ${UPLINK}kbit $BURST prio 0 `get_htb_adsll_string`
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$TC qdisc add dev $IFACE parent 1:10 handle 110: $QDISC \
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`get_limit ${ELIMIT}` `get_target "${ETARGET}" ${UPLINK}` `get_ecn ${EECN}` `get_flows ${UPLINK}` ${EQDISC_OPTS}
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}
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cake_ingress()
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{
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$TC qdisc add dev $DEV root `get_stab_string` cake bandwidth ${DOWNLINK}kbit besteffort `get_cake_lla_string` ${IQDISC_OPTS}
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$IP link set dev $DEV up
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# redirect all IP packets arriving in $IFACE to $DEV
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$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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ingress() {
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sqm_debug "ingress"
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SILENT=1 $TC qdisc del dev $IFACE handle ffff: ingress
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$TC qdisc add dev $IFACE handle ffff: ingress
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LQ="quantum `get_htb_quantum $IFACE ${DOWNLINK} ${ISHAPER_QUANTUM_DUR_US}`"
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BURST="`get_htb_burst $IFACE ${DOWNLINK} ${ISHAPER_BURST_DUR_US}`"
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SILENT=1 $TC qdisc del dev $DEV root
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case $QDISC in
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cake*) cake_ingress; return ;;
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esac
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$TC qdisc add dev $DEV root handle 1: `get_stab_string` htb default 10
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$TC class add dev $DEV parent 1: classid 1:1 htb $LQ rate ${DOWNLINK}kbit ceil ${DOWNLINK}kbit $BURST `get_htb_adsll_string`
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$TC class add dev $DEV parent 1:1 classid 1:10 htb $LQ rate ${DOWNLINK}kbit ceil ${DOWNLINK}kbit $BURST prio 0 `get_htb_adsll_string`
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# FIXME: I'd prefer to use a pre-nat filter but we need to detect if nat is on this interface
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# AND we need to permute by a random number which we can't do from userspace filters
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# Most high rate flows are REALLY close. This stomps on those harder, but hurts on high rate long distance
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#$TC qdisc add dev $DEV parent 1:10 handle 110: $QDISC limit $LIMIT $ECN interval 20ms target 3ms `get_flows ${DOWNLINK}`
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$TC qdisc add dev $DEV parent 1:10 handle 110: $QDISC \
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`get_limit ${ILIMIT}` `get_target "${ITARGET}" ${DOWNLINK}` `get_ecn ${IECN}` `get_flows ${DOWNLINK}` ${IQDISC_OPTS}
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$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_prepare_script() {
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do_modules
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verify_qdisc "htb" || return 1
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}
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################################################################################
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