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dansiemondansiemon
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‎3tos.sh

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#!/bin/bash
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DEVICE="ppp0"
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# RATE should be set to just under your upload link rate.
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RATE="620kbit"
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# Below three rates should add up to RATE.
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RATE_1="220kbit"
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RATE_2="220kbit"
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#RATE_3="200kbit"
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RATE_3="180kbit"
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SFQ_LEN="4"
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PERTURB="15"
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# Delete the existing qdiscs etc if they exist.
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tc qdisc del dev ${DEVICE} root
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# HTB QDisc at the root. Default all traffic into the prio qdisc.
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tc qdisc add dev ${DEVICE} root handle 1: htb default 30
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# Shape all traffic to RATE.
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tc class add dev ${DEVICE} parent 1: classid 1:1 htb rate ${RATE}
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# Create three taffic classes.
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tc class add dev ${DEVICE} parent 1:1 classid 1:10 htb rate ${RATE_1} ceil ${RATE} prio 0
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tc class add dev ${DEVICE} parent 1:1 classid 1:20 htb rate ${RATE_2} ceil ${RATE} prio 1
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tc class add dev ${DEVICE} parent 1:1 classid 1:30 htb rate ${RATE_3} ceil ${RATE} prio 2
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# Within each traffic class use an SFQ to ensure inter-flow fairness.
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tc qdisc add dev ${DEVICE} parent 1:10 handle 10 sfq perturb ${PERTURB} limit ${SFQ_LEN}
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tc qdisc add dev ${DEVICE} parent 1:20 handle 20 sfq perturb ${PERTURB} limit ${SFQ_LEN}
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tc qdisc add dev ${DEVICE} parent 1:30 handle 30 sfq perturb ${PERTURB} limit ${SFQ_LEN}
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# Add some filters to match on the TOS bits in the IPv6 header (IPv6 over v4 tunnel).
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# Unfortunately it looks like Transmission and OpenSSH don't set the bits for IPv6.
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# The below matches all IPv6 in IPv6 tunneled traffic.
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip protocol 41 0xff flowid 1:30
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# Only mask against the three (used) TOS bits. The final two bits are used for ECN.
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip tos 0x00 0x1c flowid 1:20
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip tos 0x04 0x1c flowid 1:20
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip tos 0x08 0x1c flowid 1:30
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip tos 0x0c 0x1c flowid 1:30
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip tos 0x10 0x1c flowid 1:10
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip tos 0x14 0x1c flowid 1:10
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip tos 0x18 0x1c flowid 1:20
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip tos 0x1c 0x1c flowid 1:20
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# Diffserv expedited forwarding. Put this in the high priority class.
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tc filter add dev ${DEVICE} parent 1:0 protocol ip prio 10 u32 match ip tos 0xb8 0xfc flowid 1:10

‎README

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Linux QoS scripts.

‎src-3tos.sh

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#!/bin/bash
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DEVICE="ppp0"
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NUM_HOST_BUCKETS=4
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NUM_FLOW_BUCKETS=64
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# All rates are kbit/sec.
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# RATE should be set to just under your upload link rate.
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RATE="620"
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# TODO - take RATE /3 to get the below ??
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# Below three rates should add up to RATE.
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RATE_1="220"
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RATE_2="220"
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RATE_3="180"
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FIFO_LEN=4
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PERTURB=15
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OVERHEAD=40 # PPPoE
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R2Q=2
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###############
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###############
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function dec_to_hex {
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echo `printf %x $1`
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}
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function drr {
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PARENT=$1
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HANDLE=$2
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# Create the QDisc.
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tc qdisc add dev ${DEVICE} parent ${PARENT} handle ${HANDLE} drr
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# Create NUM_FLOW_BUCKETS classes.
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for J in `seq ${NUM_FLOW_BUCKETS}`; do
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tc class add dev ${DEVICE} parent ${HANDLE} classid ${HANDLE}:`dec_to_hex ${J}` drr
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tc qdisc add dev ${DEVICE} parent ${HANDLE}:`dec_to_hex ${J}` pfifo limit ${FIFO_LEN}
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done
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# Add a filter to direct the packets.
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tc filter add dev ${DEVICE} prio 1 protocol ip parent ${HANDLE}: handle 1 flow hash keys src,dst,proto,proto-src,proto-dst divisor ${NUM_FLOW_BUCKETS} perturb ${PERTURB} baseclass ${HANDLE}:1
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}
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function sfq {
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PARENT=$1
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HANDLE=$2
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tc qdisc add dev ${DEVICE} parent ${PARENT} handle ${HANDLE} sfq perturb ${PERTURB} limit ${FIFO_LEN}
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}
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# Get the dividied rate values for use later.
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DIV_RATE=`expr ${RATE} / ${NUM_HOST_BUCKETS}`
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DIV_RATE_1=`expr ${RATE_1} / ${NUM_HOST_BUCKETS}`
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DIV_RATE_2=`expr ${RATE_2} / ${NUM_HOST_BUCKETS}`
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DIV_RATE_3=`expr ${RATE_3} / ${NUM_HOST_BUCKETS}`
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echo "DIV_RATE:" ${DIV_RATE}
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echo "DIV_RATE_1:" ${DIV_RATE_1}
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echo "DIV_RATE_2:" ${DIV_RATE_2}
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echo "DIV_RATE_3:" ${DIV_RATE_3}
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# Delete the existing qdiscs etc if they exist.
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tc qdisc del dev ${DEVICE} root
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# HTB QDisc at the root. Default all traffic into the prio qdisc.
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tc qdisc add dev ${DEVICE} root handle 1: htb r2q ${R2Q}
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# Create a top level class with the max rate.
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tc class add dev ${DEVICE} parent 1: classid 1:1 htb rate ${RATE}kbit linklayer atm overhead ${OVERHEAD}
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###
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# Create NUM_HOST_BUCKETS classes within the top-level class.
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###
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for HOST_NUM in `seq ${NUM_HOST_BUCKETS}`; do
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echo "Create host class:" $HOST_NUM
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QID=`expr ${HOST_NUM} '+' 9` # 1+9=10 - Start classes at 10.
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tc class add dev ${DEVICE} parent 1:1 classid 1:${QID} htb rate ${DIV_RATE}kbit ceil ${RATE}kbit prio 0 linklayer atm overhead ${OVERHEAD}
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###
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# Within each top level class add three classes, high, normal and low priority.
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###
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QID_1=`expr $QID '*' 100 + 1`
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tc class add dev ${DEVICE} parent 1:${QID} classid 1:${QID_1} htb rate ${DIV_RATE_1}kbit ceil ${RATE}kbit prio 0 linklayer atm overhead ${OVERHEAD}
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QID_2=`expr $QID '*' 100 + 2`
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tc class add dev ${DEVICE} parent 1:${QID} classid 1:${QID_2} htb rate ${DIV_RATE_2}kbit ceil ${RATE}kbit prio 1 linklayer atm overhead ${OVERHEAD}
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QID_3=`expr $QID '*' 100 + 3`
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tc class add dev ${DEVICE} parent 1:${QID} classid 1:${QID_3} htb rate ${DIV_RATE_3}kbit ceil ${RATE}kbit prio 2 linklayer atm overhead ${OVERHEAD}
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###
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# Within each priority class add a QDisc for flow fairness.
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###
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QID_1_1=`expr ${QID_1} + 1`
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drr 1:${QID_1} ${QID_1_1}
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#sfq 1:${QID_1} ${QID_1_1}
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QID_2_1=`expr ${QID_2} + 1`
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drr 1:${QID_2} ${QID_2_1}
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#sfq ${QID_2} ${QID_2_1}
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QID_3_1=`expr ${QID_3} + 1`
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drr 1:${QID_3} ${QID_3_1}
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#sfq 1:${QID_3} ${QID_3_1}
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###
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# Add filters to classify based on the TOS bits.
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# Only mask against the three (used) TOS bits. The final two bits are used for ECN.
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# TODO: Just look at delay 100 and throughput 001, everthing else to default.
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###
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tc filter add dev ${DEVICE} parent 1:${QID} protocol ip prio 10 u32 match ip tos 0x00 0x1c flowid 1:${QID_2}
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tc filter add dev ${DEVICE} parent 1:${QID} protocol ip prio 10 u32 match ip tos 0x04 0x1c flowid 1:${QID_2}
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tc filter add dev ${DEVICE} parent 1:${QID} protocol ip prio 10 u32 match ip tos 0x08 0x1c flowid 1:${QID_3}
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tc filter add dev ${DEVICE} parent 1:${QID} protocol ip prio 10 u32 match ip tos 0x0c 0x1c flowid 1:${QID_3}
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tc filter add dev ${DEVICE} parent 1:${QID} protocol ip prio 10 u32 match ip tos 0x10 0x1c flowid 1:${QID_1}
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tc filter add dev ${DEVICE} parent 1:${QID} protocol ip prio 10 u32 match ip tos 0x14 0x1c flowid 1:${QID_1}
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tc filter add dev ${DEVICE} parent 1:${QID} protocol ip prio 10 u32 match ip tos 0x18 0x1c flowid 1:${QID_2}
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tc filter add dev ${DEVICE} parent 1:${QID} protocol ip prio 10 u32 match ip tos 0x1c 0x1c flowid 1:${QID_2}
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# Diffserv expedited forwarding. Put this in the high priority class.
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tc filter add dev ${DEVICE} parent 1:${QID} protocol ip prio 10 u32 match ip tos 0xb8 0xfc flowid 1:${QID_1}
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done
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# Send everything that hits the top level QDisc to the top class.
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tc filter add dev ${DEVICE} prio 1 protocol ip parent 1:0 u32 match u32 0 0 flowid 1:1
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# From the top level class hash into the host classes.
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tc filter add dev ${DEVICE} prio 1 protocol ip parent 1:1 handle 1 flow hash keys src divisor ${NUM_HOST_BUCKETS} perturb ${PERTURB} baseclass 1:10

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