ShadowArch/AdminScripts/netcli

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2018-12-11 17:07:05 -06:00
#!/bin/bash
# Global variables
unset conf
unset network
unset type
interface="wlp4s0"
# Print helptext
function usage() {
echo Usage: $0 '[-i interface] -f conf_name'
echo " $0 -a # Connect to any known secured network"
echo " $0 -l # List networks and arp"
echo " $0 -o SSID # Connect to open network "
echo " $0 -u # Bring up interface"
echo " $0 -d # Stop the interface"
echo " $0 -I # Info "
echo " $0 -h # Usage"
echo
echo Add -v to increase verbosity.
echo "Add -t TYPE to override type guessing, where type is eth or wifi"
echo Default interface is "${interface}"
}
# Try to guess if we're ether or wifi
function guessType() {
if [ "$(echo "${interface}" | egrep -c '^enp|^eth|^eno')" -ne 1 ]; then
echo "wifi"
else
echo "ether"
fi
}
# Clean up running processes
function cleanUp() {
killall wpa_supplicant dhcpcd 2>&1
ip link set "$interface" down
}
# Connect to a given open network
# param network: an open ESSID
function connectOpen() {
network="$1"
cleanUp
ip link set "$interface" up
if [ "$type" == "wifi" ]; then
iw dev "$interface" connect "$network"
fi
}
# Connect to any known secured access point
function connectAny() {
cleanUp
ip link set "$interface" up
if [ "$type" == "wifi" ]; then
for i in `iwlist "$interface" scanning | grep ESSID | cut -f 2 -d \" | tr '[:upper:]' '[:lower:]'`; do
if [ -f /etc/wpa_supplicant/"$i".conf ]; then
/root/bin/wifi "$i" "$interface"
if [ $? -eq 0 ]; then
exit 0;
fi
fi
done
fi
}
# Connect using the WPA Conf file saved
# param conf: the conf file
function connect() {
conf="$1"
cleanUp
ip link set "${interface}" up
if [ "$type" == wifi ]; then
wpa_supplicant -i "$interface" -c "$conf" -B
fi
}
# Get the information on current interfaces
function netInfo() {
ip addr list
ip route list
iwlist scanning
}
### MAIN FUNCTION ###
if [ `echo "$0" | egrep -c '(^|/)netcli$'` -eq 1 ]; then
type=`guessType`
while getopts 'adf:hIi:lo:t:uv' OPTION 2>/dev/null; do
case "${OPTION}" in
a) connectAny ;;
f) connect "/etc/wpa_supplicant/${OPTARG}.conf" ;;
d) cleanUp; exit 0 ;;
h) usage; exit 0 ;;
i) interface="${OPTARG}"; type=`guessType` ;;
I) netInfo; exit 0; ;;
l) if [ "$type" == "wifi" ]; then echo SSID Broadcasts:; iwlist "${interface}" scanning | egrep Encryption\|ESSID | sed 's/ *//' | sed 's/ESSID://' ; fi; echo; echo ARP list:; arp -a; exit $? ;;
o) connectOpen "${OPTARG}" ;;
t) if [ "$OPTARG" != "wifi" ] && [ "$OPTARG" != "eth" ]; then usage; exit 1; fi; type="${OPTARG}" ;;
u) if ! [ "$(ip link list "${interface}" | grep -m 1 -c \ UP\ )" -ne 1 ]; then ip link set "${interface}" up; fi ;;
v) set -x ;;
*) usage; exit 1 ;;
esac
done
# Attempt DHCP Lease -- if this fails, static routing will need to be added TODO
sleep 3
dhcpcd "$interface"
exit $?
fi