HwsimTestTemplate

#! /bin/bash
# Test template for open80211s tests using mac80211_hwsim
#
# Copyright (c) 2008-2012 cozybit Inc.
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

NUM_PHYS=4
modprobe -rq mac80211_hwsim
modprobe mac80211_hwsim radios=$NUM_PHYS

mount -t debugfs | grep debugfs &> /dev/null || mount -t debugfs null /sys/kernel/debug

PHYS=`find /sys/kernel/debug/ieee80211 -name hwsim | cut -d/ -f 6 | sort`

i=0
for phy in ${PHYS}; do
	# Force a linear topology
	echo $((3 << i)) > /sys/kernel/debug/ieee80211/$phy/hwsim/group
	if [ $i == 0 ]
	then
		# The usual stuff
		iw phy ${phy} interface add mesh${i} type mesh
		ifconfig mesh${i} hw ether 42:00:00:00:0${i}:00
		ip address add dev mesh${i} 192.168.77.$((10 + i))/24
		ip link set mesh${i} up
		iw dev mesh${i} mesh join bazooka
	else
		# This interface will live under a separate network namespace
		# bound to a different shell
		echo iw phy ${phy} set netns \$BASHPID > mesh${i}_up_in_netns.sh
                # ^^^^ This does not work anymore ^^^
                # we cannot pull phy's from a different namespace only push 
                # them, which requires knowing the target PID in advance :(
		echo iw phy ${phy} interface add mesh${i} type mesh >> mesh${i}_up_in_netns.sh
		echo ifconfig mesh${i} hw ether 42:00:00:00:0${i}:00 >> mesh${i}_up_in_netns.sh
		echo ip address add dev mesh${i} 192.168.77.$((10 + i))/24 >> mesh${i}_up_in_netns.sh
		echo ip link set mesh${i} up >> mesh${i}_up_in_netns.sh
		echo iw dev mesh${i} mesh join bazooka >> mesh${i}_up_in_netns.sh
		echo sleep 10000 >> mesh${i}_up_in_netns.sh

		unshare -n -- /bin/bash mesh${i}_up_in_netns.sh & &> /dev/null
		NETNS_PID[i]=$!
	fi

	i=$((i+1))
done


ping 192.168.77.13 -W 5 -c 1 | grep '1 received' &> /dev/null || { echo FAIL; exit -1; }

for pid in ${NETNS_PID[*]}; do kill $pid; done

echo PASS