#!/bin/bash
# 13/08/2013
#This is dicamarques edition of the script with mac changed to the ones from the list here https://docs.google.com/spreadsheet/lv?key=0AvvH5W4E2lIwdEFCUkxrM085ZGp0UkZlenp6SkJablE and easier wlan config 
#
# 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 hotsopts 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 gbatemp forums.
#
# Shutdown: call the script with the parameter "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=$2
zone=wlan0
#  * this is the network interface used to access the internet; can be almost anything
#world=$3
world=eth0

# some local variables; using default values so that something is there
ssid="attwifi"
mac=4E:53:50:4F:4F:46
country=DE
name="Main MAC (All/Any)"

#
# 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 $1 in
    "stop")
      # emergency exit - restore old network state
      echo "Stopping Nintendo Zone hotspot"
      exit
    ;;
    "random") #thanks to duke_srg for this. Edit the title line with the games you have. The default has Mk7, Super Mario 3D world and AC:NL
#For more codes see https://docs.google.com/spreadsheet/ccc?key=0Ajsweg1Cjr5_dGhlaDNfd2Fid0ZpNTBYQ2pwVUlLT3c#gid=0 just add the ctr code here
#everytime you run random it picks a different mac, so once you get mk, then ac...
TITLES=AMKAREEGD
BASE=NSP
RANDOM=$(head -c 2 /dev/urandom | hexdump -e '1/2 "%u"')
CTR=$(($RANDOM%$(($(expr length $TITLES)/3))))
mac=$(echo $BASE$TITLES | cut -c 1-3,$(($CTR*3+4))-$(($CTR*3+6)) | hexdump -e '6/1 "%02X:"' | head -c 17)
      ssid="attwifi"
      country=DE
      name="Random MAC from custom title list"
    ;;
    "default")
      # default settings, my old WiFi card that recently died
      ;;
    "nash1")
      ssid="attwifi"
      mac=00:19:e8:d8:51:e3
      country=US
      name="McDonalds, 6600 Charlotte Pike (3)"
    ;;
    "nash2")
      ssid="attwifi"
      mac=1C:AF:F7:35:4A:E3
      country=US
      name="Starbucks, 3706 Hillsboro Pike (1)"
    ;;
    "nash3")
      ssid="attwifi"
      mac=00:0D:67:1C:2C:BD
      country=US
      name="McDonalds, 4700 Charlotte Pike (3)"
    ;;
    "nash4")
      ssid="attwifi"
      mac=00:26:5A:0A:BB:CE
      country=US
      name="Starbucks, 4416 Ridgefield Way (1)"
    ;;
    "nash5")
      ssid="attwifi"
      mac=00:21:d8:de:f8:30
      country=US
      name="Starbucks, 402 21st Avenue South"
    ;;
    "nash6")
      ssid="attwifi"
      mac=00:22:55:c3:3b:60
      country=US
      name="Starbucks, 424 Church Street (1)"
    ;;
    "nash7")
      ssid="attwifi"
      mac=88:75:56:6f:da:01
      country=US
      name="Morton's, 618 Church Street"
    ;;
    "nash8")
      ssid="attwifi"
      mac=1c:af:f7:35:4c:c0
      country=US
      name="Fed-Ex 0752, 212 Broadway (1)"
    ;;
    "nash9")
      ssid="attwifi"
      mac=00:3a:98:ba:5d:e0
      country=US
      name="Union Station, 1001 Broadway"
    ;;
    "nash10")
      ssid="attwifi"
      mac=1c:af:f7:35:4c:ac
      country=US
      name="Gamestop, 2306 West End Avenue (5)"
    ;;
    "nash11")
      ssid="attwifi"
      mac=00:3A:9A:7E:74:20
      country=US
      name="Starbucks, 315 4th Ave North (silent)"
    ;;
    "nash12")
      ssid="attwifi"
      mac=68:BC:0C:F7:EF:31
      country=US
      name="Starbucks, Nashville Airport (4)"
    ;;
    "nash13")
      ssid="attwifi"
      mac=00:11:93:05:ce:80
      country=US
      name="Opry Mills, North-West Corner (silent)"
    ;;
    "nash14")
      ssid="attwifi"
      mac=00:0D:67:1C:0C:22
      country=US
      name="McDonalds, 201 Rudy Circle (5)"
    ;;
    "nash15")
      ssid="attwifi"
      mac=00:0d:67:12:77:4e
      country=US
      name="McDonalds, 2806 Gallatin Pike (6)"
    ;;
    "nash16")
      ssid="attwifi"
      mac=00:0D:67:14:18:6D	
      country=US
      name="McDonalds, 4114 Hillsboro Pike (2)"
    ;;
    "nash17")
      ssid="attwifi"
      mac=00
      country=US
      name=""
    ;;
    "nj1")
      ssid="attwifi"
      mac=00:0f:8f:63:60:20
      country=US
      name="Barnes & Noble, 528 Shoppes Blvd (3)"
    ;;
    "nyc1")
      ssid="attwifi"
      mac=00:0D:67:15:2D:82
      country=US
      name="Nintendo World NYC 1 (bogus) (6)"
    ;;
    "nyc2")
      ssid="attwifi"
      mac=00:0D:67:15:D7:21
      country=US
      name="Nintendo World NYC 2 (bogus) (6)"
    ;;
    "nyc3")
      ssid="attwifi"
      mac=00:0D:67:15:D5:44
      country=US
      name="Nintendo World NYC 3 (bogus) (6)"
    ;;
    "acnl")
      ssid="attwifi"
      mac=4E:53:50:4F:4F:47
      country=US
      name="Global Spoof (AC:NL)"
    ;;
    "pkmn")
      ssid="attwifi"
      mac=4E:53:50:4f:4f:45
      country=US
      name="Global Spoof (Pokemon X/Y)"
    ;;
    "spoof3")
      ssid="attwifi"
      mac=4E:53:50:4F:4F:48
      country=DE
      name="3nd Global Spoof (Fire Emblem / EO4 / SMT4)"
    ;;
    "spoof4")
      ssid="attwifi"
      mac=4E:53:50:4F:4F:49
      country=DE
      name="4nd Global Spoof (...)"
    ;;
    "spoof5")
      ssid="attwifi"
      mac=4E:53:50:4F:4F:50
      country=DE
      name="5nd Global Spoof (...)"
    ;;
    "spoof6")
      ssid="attwifi"
      mac=4E:53:50:4F:4F:51
      country=DE
      name="6nd Global Spoof (...)"
    ;;
    "milan")
      ssid="attwifi"
      mac=d8:6c:e9:f3:eb:96
      country=DE
      name="DONT UsE THis ONE!"
;;

  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
#dnsmasq -i $zone

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

# set basic routes so that our associated devices can reach the web
#iptables --flush
#iptables --table nat --flush
#iptables --delete-chain
#iptables -P INPUT DROP
#iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
#iptables -A INPUT -p tcp --dport 22 -j ACCEPT
#iptables -A INPUT -i lo -j ACCEPT
#iptables --table nat --delete-chain
#iptables --table nat --append POSTROUTING --out-interface $world -j MASQUERADE
#iptables --append FORWARD --in-interface $zone -j ACCEPT

sysctl -w net.ipv4.ip_forward=1

# 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=6" >> $tmpfile
echo "ssid=${ssid}" >> $tmpfile
echo "hw_mode=g" >> $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=/etc/hostapd/macaddr_whitelist" >> $tmpfile

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

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

rm -rf $TMPDIR