macspoof

#!/bin/bash

cleanup() {
    echo -e "\nCleaning up..."
    pkill -P $$
    wait
    echo "Done."
    exit 0
}

trap cleanup SIGINT SIGTERM

change_mac() {
    local main_interface=$1
    local main_mon_interface="${main_interface}mon"

    if [ "$main_interface" == "wlan2" ]; then
        echo "Warning: Changing MAC address of $main_interface may result in connection loss if you are connected over this interface."

        read -e -p "Do you want to proceed? (y/n): " confirm
        if [ "$confirm" != "y" ]; then
            echo "Operation canceled. No changes made."
            exit 0
        fi

        ip link set $main_interface down
        generated_mac=$(macchanger -r $main_interface | grep "New MAC:" | awk '{print $3}')
        wlan2_manuf=$(macchanger -s $main_interface | grep "Current MAC:" | grep -o -E '\(.*\)')
        echo "New MAC for $main_interface: $generated_mac $wlan2_manuf"
        ip link set $main_interface address $generated_mac
        ip link set $main_interface up
    fi

    read -e -p "Enter the desired MAC address for $main_interface (leave blank for random generation): " manual_mac

    monitor_vif $main_interface > /dev/null
    sleep 2
#    iwconfig $main_interface mode monitor
    iwconfig $main_interface channel 1

    ip link set $main_interface down
    [ -n "$main_mon_interface" ] && ip link set $main_mon_interface down

    if [ -z "$manual_mac" ]; then
        generated_mac=$(macchanger -r $main_interface | grep "New MAC:" | awk '{print $3}')
    else
        generated_mac=$manual_mac
    fi

    ip link set $main_interface address $generated_mac

    if [ -n "$main_mon_interface" ] && [ "$main_interface" != "$main_mon_interface" ]; then
        ip link set $main_mon_interface address $generated_mac
    fi

    [ -n "$main_mon_interface" ] && ip link set $main_mon_interface up

    show_main_mac=$(ip link show $main_interface | awk '/link/ {print $2}')
    show_mon_mac=$(ip link show $main_mon_interface | awk '/link/ {print $2}')
    manuf=$(macchanger -s $main_interface | grep "Current MAC:" | grep -o -E '\(.*\)')
    manuf_mon=$(macchanger -s $main_mon_interface | grep "Current MAC:" | grep -o -E '\(.*\)')    

    echo "New MAC for $main_interface: $show_main_mac $manuf"
    echo "New MAC for $main_mon_interface: $show_mon_mac $manuf_mon"
}

wlan1="wlan1"
wlan3="wlan3"
wlan2="wlan2"

echo "Which interface(s) do you want to change?"
echo "1. $wlan1 (2.4GHz)"
echo "2. $wlan3 (2.4GHz + 5.0GHz)"
echo "3. $wlan2 (client iface)"
read -e -p "Enter your choice (1, 2, or 3): " choice

case $choice in
    1)
        change_mac $wlan1
        ;;
    2)
        change_mac $wlan3
        ;;
    3)
        change_mac $wlan2
        ;;
    *)
        echo "Invalid choice. Please enter 1, 2, or 3."
        ;;
esac