OpenWrt Forum Archive

Post #1

brak

1 May 2006, 23:57

Hi I am looking for a script which works like that:

ip upload_limi down_limit

eg. 192.168.1.5 64kb download limit 32kb upload limit

Post #2

bx

5 May 2006, 21:18

brak wrote:

Hi I am looking for a script which works like that:
ip upload_limi down_limit
eg. 192.168.1.5 64kb download limit 32kb upload limit

it's good idea, but come on and make it

Post #3

Ephraim

5 May 2006, 22:41

I'm limiting the upload at each of the client radios, but the downloads I limit in the router with this script:

#!/bin/sh
#
#   Custom Bandwidth Management
#
#   
#
#

IPFILE=/etc/anr/ipaddresses

WIFI=eth1
RATE=1mbit
BURST=15k
COUNT=2

while getopts ":sxv" opt; do
    case $opt in
    s  )
            START=1 ;;
    x  )
            START=0 ;;
    v  )
            DEBUG=echo ;;
    \? )
            echo 'usage: cbm [-s|x] [-v]'
            exit 1
    esac
done

start_filters()
{
    $DEBUG tc qdisc del dev $WIFI root >&- 2>&-
    $DEBUG tc qdisc add dev $WIFI root handle 1: htb default 2
    $DEBUG tc class add dev $WIFI parent 1: classid 1:1 htb rate 36mbit burst 15k
    $DEBUG tc class add dev $WIFI parent 1:1 classid 1:2 htb rate 8mbit burst 15k

    for i in $( cat $IPFILE ); do

        IPADDR=$( echo $i | awk -F"|" '{ print $2 }')
        RATE=$( echo $i | awk -F"|" '{ print $3 }')
        BURST=$( echo $i | awk -F"|" '{ print $4 }')
        COUNT=$(($COUNT + 1))

        $DEBUG tc class add dev $WIFI parent 1:1 classid 1:$COUNT htb rate $RATE burst $BURST
        $DEBUG tc filter add dev $WIFI parent 1:0 protocol ip prio 1 u32 match ip dst $IPADDR/32 flowid 1:$COUNT

    done
}

stop_filters()
{
    $DEBUG tc qdisc del dev $WIFI root >&- 2>&-
}

if [ $START = "" ]; then
    echo "You must specify -s to start or -x to stop"
    exit 1
elif [ $START = 1 ]; then
    start_filters
    exit 0
else
    stop_filters
    exit 0
fi

The format of the ipaddresses file is:

linkname|ipaddress|rate|burst

I have the debug statements in there because I'm not finished and I keep tinkering with it. Right now, I'm letting the clients borrow bandwidth from each other in excess of what I gurantee on the link, but I'm probably going to shut that down and make it a hard limit. I'm not using iptables for the filtering because I don't want to mess with the marks in place for established links that I'm using for qos on the wan side. This script allows me to set different limits for each customer.