#!/bin/sh

IFACE="wlan1"
SSID="vegeta black"
PSK="supermarioinreallife"
CHANNEL="6"
AP_IP="192.168.43.1"
NET="192.168.43.0/24"
DHCP_RANGE="192.168.43.10,192.168.43.50,12h"

[ "$(id -u)" -ne 0 ] && exit 1

killall hostapd dnsmasq 2>/dev/null
sleep 1

# Simple, highly compatible hostapd config
cat > /tmp/hostapd-$IFACE.conf <<EOF
interface=$IFACE
driver=nl80211
ssid=$SSID
hw_mode=g
channel=$CHANNEL
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=$PSK
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
rsn_pairwise=CCMP
EOF

hostapd -B /tmp/hostapd-$IFACE.conf
sleep 1

ip addr flush dev $IFACE
ip addr add $AP_IP/24 broadcast 192.168.43.255 dev $IFACE
ip link set $IFACE up
ip route add $NET dev $IFACE src $AP_IP

iptables -I INPUT  -i $IFACE -j ACCEPT
iptables -I OUTPUT -o $IFACE -j ACCEPT

dnsmasq --interface=$IFACE --bind-interfaces \
        --dhcp-range=$DHCP_RANGE \
        --dhcp-option=3,$AP_IP \
        --dhcp-option=6,$AP_IP \
        --port=0 --no-resolv &

echo
echo "Hotspot should be up."
echo "SSID: $SSID"
echo "Password: $PSK"
echo
iw dev $IFACE info | head -10