#!/bin/bash
#
# wifi_zone_new
# A script that emulates a Nintendo Zone in a way that you can actually connect to
# other people all over the world.
#
# Initial version written by Somebunny (9. August 2013).
#

#
# documentation (sort of)
#
# You will need the following packages/programs:
# - rfkill
# - dnsmasq (will be killed if already running)
# - hostapd (will be killed if already running)
# You should not need any additional configuration work.
#
# This script MUST be run as root, or using sudo, reconfiguring network
# interfaces does not seem to work when run by non-root.
#
# Please adapt the following sections to your own computer:
# - variables "zone" and "world", found below
# - you can add hotsoptr in "InitZone()", just copy what is there
#
# Usage: call the script with one extra parameter that describes the
# MAC address to use. I have prepared some options that work from
# the thread in the gmatemp forums.
#
# Shutdown: call the script with the parameer "stop".
#

#
# A first attempt to organise everything in a somewhat smarter way.
#

# First, some obligatory checks.
if [[ $EUID -ne 0 ]]; then
echo "This script must be run as root or with sudo."
echo "I don't like this either, but some calls here are really picky!"
exit 1
fi

# some global settings; you should only need to adapt them for your system once
# * this is the network interface used for your custom AP; must be wireless
zone=wlan1
# * this is the network interface used to access the internet; can be almost anything
world=wlan2

# some local variables; using default values so that something is there
ssid="_The Cloud"
mac=f4:6d:04:a1:6b:86
country=DE
name="Somebunny, WiFi card that recently died"

#
# local function that sets up the local variables;
# crude but better than having to change the script every time
# NOTE: this part should be heavily modified so that it doesn't
# depend on a static config. Maybe something with an external
# file or something, so you don't have to share your relay point
# with the entire world if you don't want to.
#
InitZone() {
# kill all existing support tools
killall dnsmasq 2> /dev/null
killall hostapd 2> /dev/null
# flush routing entries
iptables --flush
# deconfigure network interface
/sbin/ifconfig $zone down
case $1 in
"stop")
# emergency exit - restore old network state
echo "Stopping Nintendo Zone hotspot"
/etc/init.d/network-manager restart # yeah... didn't find a better way to fix it...
exit
;;
"default")
# default settings, my old WiFi card that recently died
;;
"stick1")
# this is my old and trusty WiFi stick
ssid="_The Cloud"
mac=00:25:86:d1:d8:a3
country=DE
name="Somebunny, old and trusty WiFi stick"
;;
"duke")
# my first tester, who helped me figure out how it works!
mac=5C:3C:27:F3:D 1:CA
country=RU
name="Dukes second MAC address"
;;
# "duke2")
# # my first tester, who helped me figure out how it works!
# # doesn't work, even with country code! werid...
# mac=20:CF:30:CE:1C:C8
# country=RU
# name="Dukes first MAC address"
# ;;
"signz")
# from the gbatemp forums
# couldn't get it working yet!
mac=40:53:50:4f:4f:46
#country=DE # doesn't work!
#country=US # doesn't work!
name="Provided by SignZ; couldn't make it work yet"
;;
"neocrux")
# from the gbatemp forums
mac=00:eb:2d:d8:62:aa
country=US
name="Provided by neocrux"
;;
"jhjsaat")
# from the gbatemp forums
mac=34:08:04:BF:AC:8A
#country=US
#country=US # doesn't work!
name="jhjsaat's personal router, from Google docs"
;;
"kaleoomega")
# from the gbatemp forums
mac=CC:FE:3C:92:D F:43
#country=US
#country=US # doesn't work!
name="kaleoOmega's personal phone"
;;
esac
}

# networkmanager often leaves a lock on the wireless hardware, remove it
rfkill unblock wifi

# set up parameters
InitZone $1

# give our wifi device a static IP address in the correct range so hostapd can associate with it
/sbin/ifconfig $zone hw ether $mac
/sbin/ifconfig $zone 192.168.23.1 up

# start dnsmasq
dnsmasq -i $zone --dhcp-range=192.168.23.50,192.168.23.150,255.255.255.0,12h

# enable IP forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward

# set basic routes so that our associated devices can reach the web
iptables -t nat -A POSTROUTING -o $zone -j MASQUERADE
iptables -A FORWARD -i $zone -o $world -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i $world -o $zone -j ACCEPT

# start hostapd, spawn a temporary file
TMPDIR=`mktemp -d`
tmpfile=$TMPDIR/nztmp
echo $tmpfile
trap "rm -rf $TMPDIR" EXIT

echo "interface=${zone}" >> $tmpfile
echo "driver=nl80211" >> $tmpfile
echo "channel=1" >> $tmpfile
echo "ssid=${ssid}" >> $tmpfile
echo "auth_algs=1" >> $tmpfile
echo "wpa=0" >> $tmpfile
echo "country_code=${country}" >> $tmpfile
# uncomment the following two lines if you want MAC filtering
#echo "macaddr_acl=1" >> $tmpfile
#echo "accept_mac_file=/home/ms/hostapd/hostapd_mac_file" >> $tmpfile

echo "Starting Nintendo Zone hotspot, using config ''${name}''"
echo "SSID: ${ssid}"
echo "Country: ${country}"

hostapd $tmpfile -B -d > /dev/null 2> /dev/null

rm -rf $TMPDIR

- Download TMac and Virtual Router Manager and install them both.

- Run CMD as Admin and enter this code:



- On TMac, change the MAC address of your Wi-Fi to the desired MAC from the spreadsheet. If you're only connected to the Internet through Wi-Fi, it should be the only connection that reads "Up" and "Operational".

- On VRM, create a new hotspot with SSID "attwifi". Use whatever password you want. On "Shared Connection" choose your Wireless connection. Name may vary, but the only other option should be "None", so don't pick that. Click "Start Virtual Router"

- Go to System Settings on your 3DS, and search for a new connection. It should find one named "attwifi". Try connecting to that one, and enter the password you chose at VRM. Try connecting to it until it fully succeeds, as it may not work on first try.

- Go back to the 3DS main menu and wait a few seconds until it detects Nintendo Zone. Wait a couple of minutes and you should get a StreetPass.

- To try a different MAC, you have to stop VRM, change the MAC on TMac, and go to 3DS System Setting, delete the connection and start all over. I couldn't get it to work by simply changing the MAC.