setup-netns.sh

#!/bin/bash

BATDIR="/mnt/batman-adv-t_x"
BATALGO="BATMAN_IV"

NUMNODES=3

modules="batman-adv"
modules_extern=

cleanup() {
	modprobe -r bridge 2> /dev/null
	modprobe -r veth 2> /dev/null
	modprobe -r batman-adv 2> /dev/null

	for n in `ip netns list | grep "^sim42" | cut -f1 -d' '`; do
		ip netns delete "$n"
	done
}

setup_modules() {
	modprobe veth
	modprobe llc
	modprobe stp
	modprobe crc16
	modprobe libcrc32c
	modprobe cfg80211
	#insmod /mnt/linux/linux/net/bridge/bridge.ko
	modprobe bridge
	insmod $BATDIR/build/net/batman-adv/batman-adv.ko
}

setup_netns() {
	for i in `seq -w 0001 $NUMNODES`; do
		ip netns add sim42-$i
	done
}



setup_line_topology() {
	for i in `seq -w 0001 $(($NUMNODES-1))`; do
		j=`printf "%.4d\n" $(($i+1))`

		ip link add sim42-$i-$j type veth peer name sim42-$j-$i
		ip link set dev sim42-$i-$j address 12:00:${i:0:2}:${i:2:2}:${j:0:2}:${j:2:2}
		ip link set dev sim42-$j-$i address 12:00:${j:0:2}:${j:2:2}:${i:0:2}:${i:2:2}
		ip link set dev sim42-$i-$j netns sim42-$i
		ip link set dev sim42-$j-$i netns sim42-$j
	done
}

get_netns_ifaces() {
	local netns="ip netns exec sim42-$1"

	$netns ip -o link | grep '^[0-9]*: sim42-.*$' | \
		sed "s/^[0-9]*: \([^@:]*\)[@]*[^:]*: .*/\1/"
}

setup_batman_netns() {
	local netns="ip netns exec sim42-$1"

	for iface in `get_netns_ifaces $1`; do
		$netns /bin/bash -c "echo '1' > /proc/sys/net/ipv6/conf/$iface/disable_ipv6"
		$netns batctl -m bat$1 interface add $iface
		$netns ip link set up dev $iface
	done

	$netns /bin/bash -c "echo '1' > /proc/sys/net/ipv6/conf/bat$1/disable_ipv6"
	$netns ip link set dev bat$1 address 02:00:00:00:${1:0:2}:${1:2:2}
	$netns ip link set up dev bat$1

	$netns brctl addbr br$1
	$netns /bin/bash -c "echo '1' > /proc/sys/net/ipv6/conf/br$1/disable_ipv6"
	$netns brctl addif br$1 bat$1
	$netns ip link set up dev br$1
}

setup_batman() {
	batctl ra "$BATALGO"

	for i in `seq -w 0001 $NUMNODES`; do
		setup_batman_netns "$i"
	done
}

setup() {
	setup_modules
	setup_netns

	setup_line_topology

	setup_batman
}

cleanup
setup

test-batman-bla.sh

#!/bin/sh

netns1="ip netns exec sim42-0001"
netns2="ip netns exec sim42-0002"
netns3="ip netns exec sim42-0003"

for p in `ps -Af | grep "ping6.*sim42" | grep -v "grep" | sed "s/^[^ ]*[ ]*\([0-9]*\) .*/\1/"`; do
	kill "$p"
done

./setup-batman-netns.sh 3

$netns2 batctl -m bat0002 mark 0x06/0xFFFFFFFF

$netns1 batctl -m bat0001 ll tt
$netns2 batctl -m bat0002 ll tt
$netns3 batctl -m bat0003 ll tt


ip link add sim42-bb2 type veth peer name sim42-bb3
ip link add sim42-provider type veth peer name sim42-client

ip link set dev sim42-bb2 address 22:00:00:02:00:03
ip link set dev sim42-bb3 address 22:00:00:03:00:02
ip link set dev sim42-provider address 22:00:00:00:00:02
ip link set dev sim42-client address 32:00:00:00:00:02

ip link set dev sim42-bb2 netns sim42-0002
ip link set dev sim42-bb3 netns sim42-0003
ip link set dev sim42-provider netns sim42-0002
ip link set dev sim42-client netns sim42-0002

$netns2 /bin/bash -c "echo '1' > /proc/sys/net/ipv6/conf/sim42-bb2/disable_ipv6"
$netns3 /bin/bash -c "echo '1' > /proc/sys/net/ipv6/conf/sim42-bb3/disable_ipv6"
$netns2 /bin/bash -c "echo '1' > /proc/sys/net/ipv6/conf/sim42-provider/disable_ipv6"

$netns2 brctl addif br0002 sim42-bb2
$netns3 brctl addif br0003 sim42-bb3
$netns2 brctl addif br0002 sim42-provider

$netns2 ebtables -t nat -F POSTROUTING
$netns2 ebtables -t nat -I POSTROUTING -o bat0002 -j mark --set-mark 0x06 --mark-target ACCEPT

$netns2 ip link set up dev sim42-bb2
$netns3 ip link set up dev sim42-bb3
$netns2 ip link set up dev sim42-provider
$netns2 ip link set up dev sim42-client

# Waiting for IPv6 to configure sim42-client
echo "Transmitting with isolation flag"
sleep 5
$netns2 ping6 -q -c 3 ff02::1%sim42-client > /dev/null
sleep 5

echo "Deleting isolation mark"
$netns2 ebtables -t nat -D POSTROUTING -o bat0002 -j mark --set-mark 0x06 --mark-target ACCEPT

echo "Transmitting without isolation flag"
sleep 5
$netns2 ping6 -q -c 3 ff02::1%sim42-client > /dev/null
sleep 5

$netns2 ping6 -q -i 10 ff02::1%sim42-client > /dev/null &