Wifi bridge

gistfile1.sh

#!/bin/sh
#
# eth0-eth1 Bridge
#

###### Config

WIFI_SSID="your ssid"
WIFI_PASS="your pass"

######

# Strict mode
set -e
set -u

# Force root
if [ `id -u` -ne 0 ]; then
  echo "Please run the script as root"
  exit 1
fi

# Install dependencies
if ! which brctl >/dev/null 2>&1; then
  apt-get update
  apt-get install bridge-utils
fi

# Stop network manager
/etc/init.d/NetworkManager stop
/etc/init.d/wpa-ifupdown stop

## Kernel settings
sysctl -w net.ipv4.ip_forward=1

# disable reverse-path filtering
sysctl -w net.ipv4.conf.eth0.rp_filter=0
sysctl -w net.ipv4.conf.eth1.rp_filter=0
#sysctl -w net.ipv4.conf.all.log_martians=1

## Network settings

ifconfig eth0 down
ifconfig eth0 0.0.0.0 promisc up

ifconfig eth1 down
ifconfig eth1 0.0.0.0 promisc up

brctl addbr br0
brctl addif br0 eth0
brctl addif br0 eth1

## Wifi setup

cat <<WPA_CONF > /tmp/wpa_supplicant.conf
network {
  ssid="${WIFI_SSID}"
  psk="${WIFI_PASS}"
}
WPA_CONF

wpa_supplicant -Dipw -ieth1 -c/tmp/wpa_supplicant.conf &

dhclient -d br0 &

wait