#!/bin/bash

while [ "$(whoami)" != "root" ]; do

echo "You must be root!"

exit 1

done

grn=$'\x1b[32m'

red=$'\x1b[31m'

pur=$'\x1b[35m'

ylw=$'\x1b[33m'

rst=$'\x1b[0m'

if [ ! "$(cat /etc/environment | grep -o 'IFACE[^ ]*')" ]; then

clear

echo -e "${grn}Your global interface variable is not set.${rst}"

echo -e "${grn}It should only need to be set once.${rst}\n"

read -p "${ylw}Press <${red}enter${ylw}> to continue${rst}"

clear

echo -e "

${ylw}#${grn}~~~~~~~~~~~~~~~~${ylw}#${rst}

${pur}$(iw dev | grep -o 'Interface [^ ]*' | sed -e 's/Interface //g' | sort -n)${rst}

${ylw}#${grn}~~~~~~~~~~~~~~~~${ylw}#${rst}\n"

read -p "${grn}Enter a wireless interface to use, [press enter to set later]:${rst} " i_face

if [ "$i_face" ]; then

echo -e "\nIFACE=$i_face" >> /etc/environment && wait

echo -e "${grn}Your interface has been set. You won't have to set it again so long

as it remains in ${ylw}/etc/environment${grn}. To reload ${ylw}/etc/environment${grn},

for system-wide use, log out and then log back in or reboot.${rst}\n"

read -p "${grn}press ${ylw}<${red}enter${ylw}>${grn} to continue${rst}"

clear

fi

fi

# For live ISO compatibility IFACE set with iw output.

if [ ! "$IFACE" ]; then

IFACE="$(iw dev | grep -m1 -o 'Interface w[^ ]*' | sed -e 's/Interface //g')"

fi

clear

echo -e "

${grn}#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~# ${rst}

${ylw} 1${red}.${grn}) ${rst}${pur}Make 1 monitor interface ${rst}

${ylw} 2${red}.${grn}) ${rst}${pur}Make multiple interfaces ${rst}

${ylw} 3${red}.${grn}) ${rst}${pur}Delete monitor interfaces ${rst}

${ylw} 4${red}.${grn}) ${rst}${red}Exit ${rst}

${grn}#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~# ${rst}\n"

read -p "${grn}Enter an option:${rst} " CHOICE

if [ "$CHOICE" == "4" ]; then

clear && exit

fi

clear

remove_mon() {

m_count="$(echo -n $(iw dev | grep -o 'mon[0-9]' | wc -l))"

if [ "$m_count" -gt "0" ]; then

n_count=$(($m_count-1))

for n in $(seq 1 $m_count); do

iw dev mon$n del 2>&1>/dev/null; wait

done

fi

}

MASTER() {

#################

# Randomize Mac #

#################

RAND_MAC() {

gen() {

NUM="$(tr -dc '0-9a-f' </dev/urandom | head -c 2)"

echo -n $NUM:

}

for c in {1..6}; do

if [ "$c" -lt "6" ]; then

gen

else

gen | tr -d ':'

fi

done

}

# Save Randomize mac to variable "nmac" #

nmac="$(RAND_MAC)"

##########################################

# Create a single new mon interface with #

# a randomized mac address #

##########################################

if [ "$CHOICE" == "1" ]; then

remove_mon

ifconfig $IFACE down; wait

iw dev $IFACE interface add mon1 type monitor; wait

add_mac() { macchanger mon1 -m $nmac 2>&1 | grep -o '\[ERROR\]'; wait; }

if [ "$(add_mac)" == "[ERROR]" ]; then

iw mon1 del && MASTER

else

ifconfig mon1 up; wait

echo -e "\x1b[32mmon1 is up\x1b[0m"

fi

#############################

# Delete all mon interfaces #

#############################

elif [ "$CHOICE" == "3" ]; then

# Check if any mons exist #

m_count="$(echo -n $(iw dev | grep -o 'mon[0-9]' | wc -l))"

if [ "$m_count" == "0" ]; then

echo -e "\x1b[91mNo mon interfaces to destroy!\x1b[0m"

exit 1

else

n_count=$(($m_count-1))

for n in $(seq 1 $m_count); do

iw dev mon$n del 2>&1>/dev/null; wait

done

ifconfig $IFACE up; wait

systemctl restart NetworkManager.service; wait

echo -e "\x1b[91mAll mons are gone\x1b[0m"

fi

######################################

# Create more than "1" mon interface #

######################################

elif [ "$CHOICE" == "2" ]; then

ifconfig $IFACE down; wait

remove_mon

echo -e "${grn}Set up to 10 new virtual NICs${rst}"

read -p "${grn}How many new VNICs do you want?:${rst} " VNICS

if [ "$VNICS" -gt "10" ]; then

echo -e "${red}Cannot set more than 10 VNICS!${rst}"

exit 1

elif [ "$VNICS" -lt "2" ]; then

echo -e "${red}If not more than 1 VNIC use option 1!${rst}"

exit 1

fi

clear

for i in $(seq 1 $VNICS); do

create_iface() {

nmacs="$(RAND_MAC)"

iw dev $IFACE interface add mon$i type monitor; wait

add_mac() { macchanger mon$i -m $nmacs 2>&1 | grep -o '\[ERROR\]'; wait; }

while [ "$(add_mac)" == "[ERROR]" ]; do

iw mon$i del && wait && create_iface

if [ "$(add_mac)" != "[ERROR]" ]; then

break

fi; done; }

create_iface && wait

ifconfig mon$i up && wait

echo -e "${grn}mon$i is up!${rst}"

done

fi

}

MASTER