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166 lines
4.5 KiB
166 lines
4.5 KiB
#!/bin/sh
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# Wonder Shaper
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# please read the README before filling out these values
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#
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# Set the following values to somewhat less than your actual download
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# and uplink speed. In kilobits. Also set the device that is to be shaped.
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# All config needs to be done in /etc/config/wshaper
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. /lib/functions.sh
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. /lib/functions/network.sh
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config_load wshaper
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for s in downlink uplink network nopriohostdst nopriohostsrc noprioportdst noprioportsrc; do
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config_get $s settings $s
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done
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if ! network_get_device device "$network"; then
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logger -t wondershaper "Error: Could not find the device for network $network, aborting."
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exit 1
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fi
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[ -z "$downlink" ] && logger -t wondershaper "Error: Downlink speed not set, aborting." && exit 1
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[ -z "$uplink" ] && logger -t wondershaper "Error: Uplink speed not set, aborting." && exit 1
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MODULES='sch_ingress sch_sfq sch_htb cls_u32 act_police'
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DOWNLINK="$downlink"
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UPLINK="$uplink"
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DEV="$device"
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# low priority OUTGOING traffic - you can leave this blank if you want
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# low priority source netmasks
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NOPRIOHOSTSRC="$nopriohostsrc"
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# low priority destination netmasks
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NOPRIOHOSTDST="$nopriohostdst"
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# low priority source ports
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NOPRIOPORTSRC="$noprioportsrc"
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# low priority destination ports
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NOPRIOPORTDST="$noprioportdst"
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if [ "$1" = "status" ]
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then
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tc -s qdisc ls dev $DEV
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tc -s class ls dev $DEV
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exit
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fi
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# clean existing down- and uplink qdiscs, hide errors
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tc qdisc del dev $DEV root 2> /dev/null > /dev/null
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tc qdisc del dev $DEV ingress 2> /dev/null > /dev/null
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if [ "$1" = "stop" ]
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then
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for i in $MODULES ; do
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rmmod $i
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done
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exit
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fi
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for i in $MODULES ; do
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insmod $i
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done
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###### uplink
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# install root HTB, point default traffic to 1:20:
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tc qdisc add dev $DEV root handle 1: htb default 20
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# shape everything at $UPLINK speed - this prevents huge queues in your
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# DSL modem which destroy latency:
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tc class add dev $DEV parent 1: classid 1:1 htb rate ${UPLINK}kbit burst 6k
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# high prio class 1:10:
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tc class add dev $DEV parent 1:1 classid 1:10 htb rate ${UPLINK}kbit \
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burst 6k prio 1
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# bulk & default class 1:20 - gets slightly less traffic,
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# and a lower priority:
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tc class add dev $DEV parent 1:1 classid 1:20 htb rate $((9*$UPLINK/10))kbit \
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burst 6k prio 2
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tc class add dev $DEV parent 1:1 classid 1:30 htb rate $((8*$UPLINK/10))kbit \
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burst 6k prio 2
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# all get Stochastic Fairness:
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tc qdisc add dev $DEV parent 1:10 handle 10: sfq perturb 10
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tc qdisc add dev $DEV parent 1:20 handle 20: sfq perturb 10
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tc qdisc add dev $DEV parent 1:30 handle 30: sfq perturb 10
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# TOS Minimum Delay (ssh, NOT scp) in 1:10:
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tc filter add dev $DEV parent 1:0 protocol ip prio 10 u32 \
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match ip tos 0x10 0xff flowid 1:10
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# ICMP (ip protocol 1) in the interactive class 1:10 so we
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# can do measurements & impress our friends:
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tc filter add dev $DEV parent 1:0 protocol ip prio 10 u32 \
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match ip protocol 1 0xff flowid 1:10
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# To speed up downloads while an upload is going on, put ACK packets in
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# the interactive class:
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tc filter add dev $DEV parent 1: protocol ip prio 10 u32 \
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match ip protocol 6 0xff \
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match u8 0x05 0x0f at 0 \
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match u16 0x0000 0xffc0 at 2 \
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match u8 0x10 0xff at 33 \
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flowid 1:10
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# rest is 'non-interactive' ie 'bulk' and ends up in 1:20
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# some traffic however suffers a worse fate
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for a in $NOPRIOPORTDST
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do
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tc filter add dev $DEV parent 1: protocol ip prio 14 u32 \
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match ip dport $a 0xffff flowid 1:30
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done
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for a in $NOPRIOPORTSRC
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do
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tc filter add dev $DEV parent 1: protocol ip prio 15 u32 \
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match ip sport $a 0xffff flowid 1:30
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done
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for a in $NOPRIOHOSTSRC
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do
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tc filter add dev $DEV parent 1: protocol ip prio 16 u32 \
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match ip src $a flowid 1:30
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done
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for a in $NOPRIOHOSTDST
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do
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tc filter add dev $DEV parent 1: protocol ip prio 17 u32 \
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match ip dst $a flowid 1:30
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done
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# rest is 'non-interactive' ie 'bulk' and ends up in 1:20
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tc filter add dev $DEV parent 1: protocol ip prio 18 u32 \
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match ip dst 0.0.0.0/0 flowid 1:20
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########## downlink #############
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# slow downloads down to somewhat less than the real speed to prevent
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# queuing at our ISP. Tune to see how high you can set it.
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# ISPs tend to have *huge* queues to make sure big downloads are fast
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#
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# attach ingress policer:
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tc qdisc add dev $DEV handle ffff: ingress
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# filter *everything* to it (0.0.0.0/0), drop everything that's
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# coming in too fast:
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tc filter add dev $DEV parent ffff: protocol ip prio 50 u32 match ip src \
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0.0.0.0/0 police rate ${DOWNLINK}kbit burst 10k drop flowid :1
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logger -t wondershaper "Wondershaper was started on device $device."
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