#! /bin/bash
BR=${1:-"br549"}
ETH=${2:-"eth0"}
maxports=${3:-1000}

echo "Ethernet Bridge functional test"

echo -n "Testing kernel: " ; uname -a
echo -n "Utilities:      " ; brctl -V

# fetch ip of working $ETH
IP=`/sbin/ifconfig $ETH | sed -n -e 's/^.*inet addr:\([0-9][0-9\.]*\).*$/\1/p'`
echo "Using IP address $IP"

# All commands in this part must succeed
set -e

echo "0. Creating  $maxports dummy devices"
modprobe dummy numdummies=$maxports

echo "1. Creating bridge $BR"
brctl addbr $BR 
brctl stp $BR on

echo "2. Add $ETH"
ifconfig $ETH 0.0.0.0
brctl addif $BR $ETH

echo "3. Bring up bridge"
ifconfig $BR $IP

echo "4 Bring up another bridge"
brctl addbr "brx%d"
ifconfig brx0 1.1.1.1

echo "5 Bring down bridge"
ifconfig brx0 down
brctl delbr brx0

echo -n  "6. Add " $maxports " ports:"
for (( i=1; i < $maxports; i++))
do
	brctl addif $BR dummy$i
	if [[ $(( $i % 10 )) -eq 10 ]]
	then echo -n '.'
	fi
done
echo

echo -n "7. Delete those ports:"
for (( i=1; i < $maxports; i++))
do
  	brctl delif $BR dummy$i
	if [[ $(( $i % 10 )) -eq 10 ]]
	then echo -n '.'
	fi
done
echo

echo "8. Notififer cases"
brctl addif $BR dummy0

echo "8a Device down"
ifconfig dummy0 down

echo "8b Change device address"
ifconfig dummy0 hw ether 00:0d:02:03:04:05

echo "8c. Device up"
ifconfig dummy0 up

echo "8d Unregister device (slow)"
rmmod dummy
echo "** Done"

modprobe dummy numdummies=2

set +e

echo "10 Error cases"
echo -n "  duplicate bridge - "
brctl addbr $BR

echo -n "  bridge to bridge - "
brctl addbr brTmp
brctl addif $BR brTmp

echo -n "  already in other bridge - "
brctl addif brTmp $ETH

echo -n "  already in this bridge - "
brctl addif $BR $ETH

echo -n "  remove from wrong bridge - "
brctl delif brTmp $ETH
brctl delbr brTmp

echo -n "  remove bridge $ETH - "
brctl delbr $ETH 

echo -n "  remove bridge bogus - "
brctl delbr bogus 

echo -n "  remove still active bridge - "
brctl delbr $BR 

echo -n "  zero hw address - "
ifconfig dummy0 hw ether 00:00:00:00:00:00
brctl addif $BR dummy0

echo -n "  duplicate hw address - "
ifconfig dummy0 hw ether 00:0d:01:00:00:00
ifconfig dummy1 hw ether 00:0d:01:00:00:00
brctl addif $BR dummy0
brctl addif $BR dummy1
# leave dummy0 for next test.

echo "10 Tuning"
set -e
brctl stp $BR off
brctl stp $BR on
brctl setageing $BR 4000
brctl setbridgeprio $BR 1
brctl setfd $BR 120
brctl sethello $BR 20
brctl setmaxage $BR 1000
brctl setpathcost $BR dummy0 50
brctl setportprio $BR dummy0 2

echo "Status check"
brctl show
read  -p "Ok?"
brctl showstp $BR
read  -p "Ok?"
brctl showmacs $BR
read  -p "Ok?"


echo "30 Shutdown"
ifconfig $BR down
brctl delbr $BR
ifconfig $ETH $IP

echo "31 Remove bridge module"
rmmod bridge
rmmod dummy
rmmod bridge

echo "32 Check for dead bridge cleanup"
brctl addbr $BR
rmmod bridge
modprobe bridge
sleep 1

echo "33 Remove module with race"
brctl addbr $BR 
ifconfig $BR 9.9.9.9

rmmod --wait bridge &
sleep 2
brctl addbr brXX 
if ifconfig brXX 1.1.1.1 ; then
    echo "?? ifconfig succeeded"
    ifconfig brXX down
fi

ifconfig $BR down
wait

echo "*** Done ***"