Attachment 310524 Details for Bug 453291 – Shell script to trigger the problem.

Shell script to trigger the problem.

filttest.sh (text/plain), 4.32 KB, created by Karl Auerbach on 2008-06-29 00:21:57 UTC

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Filename:

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Creator: Karl Auerbach

Created: 2008-06-29 00:21:57 UTC

Size: 4.32 KB

patch

obsolete

>#!/bin/sh
>
>if [ -z "$1" ] ; then
>   echo "Usage: $0 interface-name"
>   exit 1
>fi
>
>IFACE=$1
>
>OUR_ID=`id -u`
>if [ ${OUR_ID} != 0 ] ; then
>   echo This script must be run as root.
>   exit 1
>fi
>
>echo "Using interface ${IFACE}"
>
>echo ""
>echo "Loading modules."
>echo "modprobe sch_netem"
>modprobe sch_netem
>echo "modprobe cls_u32"
>modprobe cls_u32
>
>echo ""
>echo "When there there is no pre-existing item you may get the following:"
>echo "RTNETLINK answers: No such file or directory"
>echo "But 'We have an error talking to the kernel' is bad."
>echo ""
>
>echo ""
>echo "Clear out everything"
>echo tc qdisc del dev ${IFACE} root
>tc qdisc del dev ${IFACE} root
>echo tc qdisc del dev ${IFACE} ingress
>tc qdisc del dev ${IFACE} ingress
>
>echo ""
>echo "Create some nearly vacuous netem settings.."
>echo "tc qdisc add dev ${IFACE} root handle 1: prio bands 5 priomap 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4"
>tc qdisc add dev ${IFACE} root handle 1: prio bands 5 priomap 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
>echo "tc qdisc add dev ${IFACE} parent 1:1 handle 10: netem"
>tc qdisc add dev ${IFACE} parent 1:1 handle 10: netem
>echo "tc qdisc add dev ${IFACE} parent 1:2 handle 20: netem"
>tc qdisc add dev ${IFACE} parent 1:2 handle 20: netem
>echo "tc qdisc add dev ${IFACE} parent 1:3 handle 30: netem"
>tc qdisc add dev ${IFACE} parent 1:3 handle 30: netem
>echo "tc qdisc add dev ${IFACE} parent 1:4 handle 40: netem"
>tc qdisc add dev ${IFACE} parent 1:4 handle 40: netem
>echo "tc qdisc add dev ${IFACE} parent 1:5 handle 50: netem"
>tc qdisc add dev ${IFACE} parent 1:5 handle 50: netem
>
>echo ""
>echo "Clean out any previous filters"
>tc filter del dev eth1 prio 3
>RC=$?
>if [ ${RC} != 0 ]; then
>   echo "********************"
>   echo "*  ERROR OCCURRED  *"
>   echo "********************"
>fi
>
>echo ""
>echo "Create classifier root:"
>echo "tc filter add dev ${IFACE} parent 1:0 prio 3 protocol ip u32"
>tc filter add dev ${IFACE} parent 1:0 prio 3 protocol ip u32
>RC=$?
>if [ ${RC} != 0 ]; then
>   echo "********************"
>   echo "*  ERROR OCCURRED  *"
>   echo "********************"
>fi
>
>echo ""
>echo "Generate one item hash table:"
>echo "tc filter add dev ${IFACE} parent 1:0 prio 3 handle 2: u32 divisor 1"
>tc filter add dev ${IFACE} parent 1:0 prio 3 handle 2: u32 divisor 1
>RC=$?
>if [ ${RC} != 0 ]; then
>   echo "********************"
>   echo "*  ERROR OCCURRED  *"
>   echo "********************"
>fi
>
>echo ""
>echo "Generate a filter for IP"
>echo "tc filter add dev ${IFACE} parent 1:0 handle ::1 prio 3 u32 match u8 0x40 0xF0 at 0 offset mask 0x0F00 at 0 shift 6 plus 0 ht 800:: link 2:"
>tc filter add dev ${IFACE} parent 1:0 handle ::1 prio 3 u32 match u8 0x40 0xF0 at 0 offset mask 0x0F00 at 0 shift 6 plus 0 ht 800:: link 2:
>RC=$?
>if [ ${RC} != 0 ]; then
>   echo "********************"
>   echo "*  ERROR OCCURRED  *"
>   echo "********************"
>fi
>
>echo ""
>echo "Generate a filter for ICMP"
>echo "tc filter add dev ${IFACE} protocol ip parent 1:0 prio 3 u32 match u8 0x01 0xff at 9 flowid 1:1 ht 2:0:"
>tc filter add dev ${IFACE} protocol ip parent 1:0 prio 3 u32 match u8 0x01 0xff at 9 flowid 1:1 ht 2:0:
>RC=$?
>if [ ${RC} != 0 ]; then
>   echo "********************"
>   echo "*  ERROR OCCURRED  *"
>   echo "********************"
>fi
>
>REAL_OUT=`mktemp -t real_output.XXXXXXXXXX`
>SHOULD_BE_OUT=`mktemp -t should_be_output.XXXXXXXXXX`
>
>cat - >> ${SHOULD_BE_OUT} <<EOF
>filter parent 1: protocol ip pref 3 u32 
>filter parent 1: protocol ip pref 3 u32 fh 2: ht divisor 1 
>filter parent 1: protocol ip pref 3 u32 fh 2::800 order 2048 key ht 2 bkt 0 flowid 1:1 
>  match 00010000/00ff0000 at 8
>filter parent 1: protocol ip pref 3 u32 fh 800: ht divisor 1 
>filter parent 1: protocol ip pref 3 u32 fh 800::1 order 1 key ht 800 bkt 0 link 2: 
>  match 40000000/f0000000 at 0
>    offset 0f00>>6 at 0 
>EOF
>
>tc filter show dev ${IFACE} >> ${REAL_OUT}
>
>echo ""
>echo "The final result should be:"
>cat ${SHOULD_BE_OUT}
>
>echo ""
>echo "The actual result we got was:"
>cat ${REAL_OUT}
>
>cmp ${SHOULD_BE_OUT} ${REAL_OUT} 
>if [ $? != 0 ]; then
>   echo ""
>   echo "*************************************"
>   echo "* Output was not what was expected! *"
>   echo "*                                   *"
>   echo "* Differences are shown below.      *"
>   echo "*************************************"
>   echo ""
>   diff -c ${SHOULD_BE_OUT} ${REAL_OUT}
>else
>   echo ""
>   echo "The actual result matched the expected result."
>   echo ""
>fi
>
>rm -f ${REAL_OUT}
>rm -f ${SHOULD_BE_OUT}

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Attachments on bug 453291: 310524 | 310957 | 310958