Add bin/ap-ref.sh
This commit is contained in:
parent
99fffc5a12
commit
8008463215
252
bin/ap-ref.sh
Normal file
252
bin/ap-ref.sh
Normal file
@ -0,0 +1,252 @@
|
|||||||
|
#!/bin/bash
|
||||||
|
# Created by srepac@kvmnerds.com
|
||||||
|
#
|
||||||
|
# Filename: hotspot
|
||||||
|
VER=1.6
|
||||||
|
## CHANGELOG:
|
||||||
|
# 1.0 03/02/22 Created
|
||||||
|
# 1.1 03/03/22 Added ability to always run services at boot (also otgnet network DHCP entry for dnsmasq)
|
||||||
|
# 1.2 03/04/22 Add ap0 interface on top of wlan0 for use as hotspot AP
|
||||||
|
# 1.3 03/11/22 Create script/service so that AP starts up on boot and make it easy to change hotspot network
|
||||||
|
# 1.4 03/12/22 Updated SSID to be hostname-AP; DNSport pick between 53 and 5553; refactoring
|
||||||
|
# 1.5 03/14/22 Use the current nameservers for use with dnsmasq
|
||||||
|
# 1.6 03/22/22 Consolidated to one script for usage on both Arch and Raspbian
|
||||||
|
#
|
||||||
|
# This script was written to allow PiKVM to run its wifi as hotspot AP akin to how GoPro is first configured
|
||||||
|
#
|
||||||
|
# SSID: $(hostname)-AP
|
||||||
|
# Passphrase: pikvmisawesome
|
||||||
|
#
|
||||||
|
# Hotspot network IP 10.5.4.1/24 DHCP range 10.5.4.10 - 10.5.4.250
|
||||||
|
###
|
||||||
|
# Change SSID and PASSPHRASE here
|
||||||
|
SSID="$(hostname)-AP"
|
||||||
|
PASSPHRASE='pikvmisawesome'
|
||||||
|
# Replace the first 3 octets of hotspot network here (change it to whatever you want) Default: NETWORK="10.5.4"
|
||||||
|
NETWORK="10.5.4"
|
||||||
|
###
|
||||||
|
: '
|
||||||
|
Before running this script, you should connect your wifi to SSID first, and then run this script creating ap0
|
||||||
|
... that acts like a wifi hotspot that other systems can connect to.
|
||||||
|
|
||||||
|
In addition, if the pi eth0/wlan0 is connected to internet, the systems connected to the wifi
|
||||||
|
... hotspot will also have internet access.
|
||||||
|
' ### end of comments ###
|
||||||
|
|
||||||
|
### unblock wifi in the very beginning just in case
|
||||||
|
rfkill unblock wifi
|
||||||
|
|
||||||
|
if [[ "$1" == "-h" || "$1" == "--help" ]]; then
|
||||||
|
echo "usage: $0 [-f] where -f forces hotspot to run at boot; default is to run on this session only"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ -e /usr/local/bin/rw ]; then rw; fi
|
||||||
|
set -x
|
||||||
|
|
||||||
|
### added 03/14/22 - create list of DNS servers from /etc/resolv.conf
|
||||||
|
if [ ! -e /etc/kvmd/custom.dns ]; then
|
||||||
|
NAMESERVERS=$( for i in `grep ^nameserver /etc/resolv.conf | awk '{print $2}' | sort -r -u`; do echo -n "$i,"; done | sed 's/,$//' )
|
||||||
|
else
|
||||||
|
# comma separated list of DNS servers to use
|
||||||
|
NAMESERVERS=$( egrep -v '^#' /etc/kvmd/custom.dns )
|
||||||
|
fi
|
||||||
|
|
||||||
|
### Added on 03/22/22 to allow usage on both Arch and Debian (Raspbian) ###
|
||||||
|
case $( grep ^NAME= /etc/os-release | cut -d'"' -f 2 | cut -d' ' -f1 ) in
|
||||||
|
"Arch")
|
||||||
|
# Install required packages if not already installed
|
||||||
|
if [ $( pacman -Q | grep -wc hostapd ) -ne 1 ]; then
|
||||||
|
# first, update db's
|
||||||
|
pacman -Syy
|
||||||
|
# then, install hostapd and dnsmasq packages
|
||||||
|
pacman --noconfirm -S hostapd dnsmasq
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
"Debian"|"Raspbian")
|
||||||
|
# install required packages if not already installed
|
||||||
|
if [ $( apt list 2> /dev/null | grep hostapd | grep -cw installed ) -ne 1 ]; then
|
||||||
|
# first, update db's
|
||||||
|
apt-get update
|
||||||
|
# then, install hostapd and dnsmasq packages
|
||||||
|
apt-get install -y hostapd dnsmasq wireless-tools iw
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
echo "Running on unsupported OS. Exiting."
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# Delete and re-create ap0 interface on top of wlan0
|
||||||
|
iw dev ap0 del 2> /dev/null
|
||||||
|
iw dev wlan0 interface add ap0 type __ap
|
||||||
|
|
||||||
|
# Stop any dnsmasq and hostapd services in case already running
|
||||||
|
systemctl disable --now hostapd dnsmasq kvmd-otgnet-dnsmasq
|
||||||
|
|
||||||
|
sed -i 's#^DAEMON_CONF=.*#DAEMON_CONF=/etc/hostapd/hostapd.conf#' /etc/init.d/hostapd
|
||||||
|
|
||||||
|
### Add /var/lib/misc entry in /etc/fstab
|
||||||
|
# Required for dnsmasq to keep track of leased IPs and logs
|
||||||
|
if [ $( grep -wc misc /etc/fstab ) -ne 1 ]; then
|
||||||
|
|
||||||
|
cat <<FSTAB >> /etc/fstab
|
||||||
|
tmpfs /var/lib/misc tmpfs mode=0755 0 0
|
||||||
|
FSTAB
|
||||||
|
|
||||||
|
# mount /var/lib/misc
|
||||||
|
mount /var/lib/misc
|
||||||
|
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Backup original /etc/dnsmasq.conf
|
||||||
|
if [ ! -e /etc/dnsmas.conf.orig ]; then cp /etc/dnsmasq.conf /etc/dnsmasq.conf.orig; fi
|
||||||
|
|
||||||
|
### Create custom /etc/dnsmasq.conf file
|
||||||
|
if [[ $( netstat -nap | grep :53\ | grep -v dnsmasq | wc -l ) -eq 0 ]]; then
|
||||||
|
# use dnsmasq default port
|
||||||
|
DNSPORT=53
|
||||||
|
else
|
||||||
|
# another dns resolver is listening on port 53, so use different port
|
||||||
|
DNSPORT=5553
|
||||||
|
fi
|
||||||
|
|
||||||
|
cat <<DNSMASQ > /etc/dnsmasq.conf
|
||||||
|
log-facility=/var/lib/misc/dnsmasq.log
|
||||||
|
dhcp-range=interface:ap0,${NETWORK}.10,${NETWORK}.250,12h
|
||||||
|
port=${DNSPORT} # use this to listen for DNS requests
|
||||||
|
dhcp-option=6,${NAMESERVERS}
|
||||||
|
log-queries
|
||||||
|
DNSMASQ
|
||||||
|
|
||||||
|
ifconfig ap0 down
|
||||||
|
ifconfig ap0 up
|
||||||
|
ifconfig ap0 ${NETWORK}.1/24
|
||||||
|
|
||||||
|
### Add firewall rule to allow ap0 routed through current default static route interface ###
|
||||||
|
iptables -t nat -F
|
||||||
|
iptables -F
|
||||||
|
|
||||||
|
# use the first default static route interface
|
||||||
|
IFACE=$( ip route | grep default | awk '{print $5}' | head -1 )
|
||||||
|
|
||||||
|
iptables -t nat -A POSTROUTING -o $IFACE -j MASQUERADE
|
||||||
|
iptables -A FORWARD -i ap0 -o $IFACE -j ACCEPT
|
||||||
|
echo '1' > /proc/sys/net/ipv4/ip_forward
|
||||||
|
|
||||||
|
## Add entry in /etc/dhcpcd.conf so that wifi doesn't get a DHCP address
|
||||||
|
if [ $( grep -wc nohook /etc/dhcpcd.conf ) -ne 1 ]; then
|
||||||
|
|
||||||
|
cat <<DHCPCD >> /etc/dhcpcd.conf
|
||||||
|
interface ap0
|
||||||
|
static ip_address=${NETWORK}.1/24
|
||||||
|
nohook wpa_supplicant
|
||||||
|
DHCPCD
|
||||||
|
|
||||||
|
fi
|
||||||
|
|
||||||
|
### Add required routed-ap configuration
|
||||||
|
if [ ! -e /etc/sysctl.d/routed-ap.conf ]; then
|
||||||
|
|
||||||
|
cat <<ROUTEDAP > /etc/sysctl.d/routed-ap.conf
|
||||||
|
# Enable IPv4 routing
|
||||||
|
net.ipv4.ip_forward=1
|
||||||
|
ROUTEDAP
|
||||||
|
|
||||||
|
fi
|
||||||
|
|
||||||
|
### overwrite /etc/hostapd/hostapd.conf config
|
||||||
|
cat <<EOF > /etc/hostapd/hostapd.conf
|
||||||
|
country_code=US
|
||||||
|
interface=ap0
|
||||||
|
driver=nl80211
|
||||||
|
channel=1
|
||||||
|
hw_mode=g
|
||||||
|
macaddr_acl=0
|
||||||
|
auth_algs=1
|
||||||
|
ignore_broadcast_ssid=0
|
||||||
|
|
||||||
|
ssid=${SSID}
|
||||||
|
wpa=2
|
||||||
|
wpa_passphrase=${PASSPHRASE}
|
||||||
|
|
||||||
|
wpa_key_mgmt=WPA-PSK
|
||||||
|
wpa_pairwise=CCMP
|
||||||
|
# Change the broadcasted/multicasted keys after this many seconds.
|
||||||
|
wpa_group_rekey=600
|
||||||
|
# Change the master key after this many seconds. Master key is used as a basis
|
||||||
|
wpa_gmk_rekey=86400
|
||||||
|
EOF
|
||||||
|
|
||||||
|
systemctl unmask hostapd
|
||||||
|
# If -f (force) option is passed in, then enable services to run at boot
|
||||||
|
if [[ "$1" == "-f" || "$1" == "--firstboot" ]]; then
|
||||||
|
|
||||||
|
rm -f /usr/bin/hotspot-enable
|
||||||
|
cat <<SCRIPT > /usr/bin/hotspot-enable
|
||||||
|
#!/bin/bash
|
||||||
|
# Script to enable hotspot at anytime
|
||||||
|
set -x
|
||||||
|
# Delete and re-create ap0 interface on top of wlan0
|
||||||
|
iw dev ap0 del 2> /dev/null
|
||||||
|
iw dev wlan0 interface add ap0 type __ap
|
||||||
|
|
||||||
|
ifconfig ap0 down
|
||||||
|
ifconfig ap0 up
|
||||||
|
ifconfig ap0 ${NETWORK}.1/24
|
||||||
|
|
||||||
|
iptables -t nat -F
|
||||||
|
iptables -F
|
||||||
|
iptables -t nat -A POSTROUTING -o $IFACE -j MASQUERADE
|
||||||
|
iptables -A FORWARD -i ap0 -o $IFACE -j ACCEPT
|
||||||
|
echo '1' > /proc/sys/net/ipv4/ip_forward
|
||||||
|
|
||||||
|
systemctl restart hostapd dnsmasq
|
||||||
|
SCRIPT
|
||||||
|
|
||||||
|
chmod +x /usr/bin/hotspot-enable
|
||||||
|
|
||||||
|
# Create service file to run hotspot-enable script at boot (that runs with -f option)
|
||||||
|
rm -f /usr/lib/systemd/system/hotspot.service
|
||||||
|
cat <<FWSVC > /usr/lib/systemd/system/hotspot.service
|
||||||
|
[Unit]
|
||||||
|
Description=Run Hotspot AP at boot
|
||||||
|
After=network.target network-online.target nss-lookup.target
|
||||||
|
|
||||||
|
[Service]
|
||||||
|
User=root
|
||||||
|
Type=simple
|
||||||
|
ExecStart=/usr/bin/hotspot-enable
|
||||||
|
|
||||||
|
[Install]
|
||||||
|
WantedBy=multi-user.target
|
||||||
|
FWSVC
|
||||||
|
|
||||||
|
# enable and start hotspot.service to start at boot
|
||||||
|
systemctl enable --now hotspot.service hostapd dnsmasq
|
||||||
|
|
||||||
|
else
|
||||||
|
|
||||||
|
# disable hotspot.service
|
||||||
|
systemctl disable --now hotspot.service
|
||||||
|
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Restat hostapd and dnsmasq so the config changes take effect
|
||||||
|
systemctl restart hostapd dnsmasq
|
||||||
|
|
||||||
|
### Added on 03/03/22 -- just in case kvmd-otgnet-dnsmasq was already running
|
||||||
|
# fix it by adding entry for usb0 DHCP
|
||||||
|
if [ ! -e /usr/bin/otgnet.sh ]; then
|
||||||
|
wget -O /usr/bin/otgnet.sh https://kvmnerds.com/PiKVM/otgnet.sh 2> /dev/null
|
||||||
|
chmod +x /usr/bin/otgnet.sh
|
||||||
|
fi
|
||||||
|
/usr/bin/otgnet.sh
|
||||||
|
|
||||||
|
sleep 3
|
||||||
|
ip -br a | grep ap0
|
||||||
|
iwconfig ap0
|
||||||
|
systemctl status hostapd dnsmasq
|
||||||
|
|
||||||
|
if [ -e /usr/local/bin/ro ]; then ro; fi
|
||||||
Loading…
Reference in New Issue
Block a user