#!/bin/sh
# Script to start/stop a hostapd-based access point
# edited for slackware distro
# Symbols for needed programs
IPTABLES=/usr/sbin/iptables
IFCONFIG=/sbin/ifconfig
DHCPD=/usr/sbin/dhcpd
HOSTAPD=/usr/sbin/hostapd
# Symbols for internal and external interfaces
NET_INT=wlan0
NET_EXT=ppp0
# IP address for the AP
INT_ADDR=192.168.0.1
case "$1" in
start)
echo "Starting AP mode for $NET_INT at address $INT_ADDR"
# Disable packet forwarding
echo 0 > /proc/sys/net/ipv4/ip_forward
# Stop any existing hostapd and dhcpd daemons
killall hostapd
killall dhcpd
#Set up forwarding
$IPTABLES -t nat -A POSTROUTING -o $NET_EXT -j MASQUERADE
$IPTABLES -A FORWARD -i $NET_EXT -o $NET_INT -m state
--state RELATED,ESTABLISHED -j ACCEPT
$IPTABLES -A FORWARD -i $NET_INT -o $NET_EXT -j ACCEPT
# Enable packet forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# Get the internal interface in the right state
$IFCONFIG $NET_INT down
$IFCONFIG $NET_INT up
$IFCONFIG $NET_INT $INT_ADDR
# dhcpd needs to have a leases file available - create it if needed
if [ ! -f /var/state/dhcp/dhcpd.leases ]; then
touch /var/state/dhcp/dhcpd.leases
fi
# Bring up the DHCP server
$DHCPD -cf /etc/dhcpd.conf $NET_INT
# Bring up hostapd
$HOSTAPD -B -P /var/run/hostapd.pid /etc/hostapd/hostapd.conf
;;
stop)
echo "Stopping AP mode on $NET_INT"
# Stop hostapd and dhcpd daemons
kill -INT $(cat /var/run/hostapd.pid)
kill -INT $(cat /var/run/dhcpd.pid)
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
;;
esac
