134 lines
4.7 KiB
Bash
134 lines
4.7 KiB
Bash
#!/bin/bash
|
|
# Script to set fixed MAC address and disable Wi-Fi if eth0 configuration succeeds
|
|
# Must be run with sudo!
|
|
|
|
# --- Configuration ---
|
|
ETH0_MAC="00:00:00:00:00:00" # Default MAC - will be changed by setup script
|
|
# WLAN0_MAC="XX:XX:XX:XX:XX:XX" # Uncomment and set if needed
|
|
|
|
# Verify root privileges
|
|
if [ "$(id -u)" -ne 0 ]; then
|
|
echo "This script must be run as root" >&2
|
|
exit 1
|
|
fi
|
|
|
|
# --- Functions ---
|
|
# Function to set MAC and verify success
|
|
set_mac() {
|
|
local interface="$1"
|
|
local mac="$2"
|
|
local success=false
|
|
local log_file="/var/log/set_mac.log"
|
|
|
|
# Verifica se a interface existe
|
|
if ! ip link show "$interface" &> /dev/null; then
|
|
echo "$(date): Interface $interface não encontrada." | tee -a "$log_file"
|
|
return 1
|
|
fi
|
|
|
|
# Verifica se macchanger está instalado
|
|
if command -v macchanger >/dev/null 2>&1; then
|
|
echo "$(date): Usando macchanger para definir MAC de $interface para $mac" | tee -a "$log_file"
|
|
# Tenta usar macchanger
|
|
if ip link set "$interface" down && \
|
|
macchanger -m "$mac" "$interface" >/dev/null 2>&1 && \
|
|
ip link set "$interface" up; then
|
|
echo "$(date): Sucesso ao definir MAC com macchanger para $interface (novo: $mac)" | tee -a "$log_file"
|
|
success=true
|
|
else
|
|
echo "$(date): Falha ao definir MAC com macchanger para $interface. Tentando fallback com ip link..." | tee -a "$log_file"
|
|
fi
|
|
fi
|
|
|
|
# Fallback para ip link (se macchanger não estiver disponível ou falhar)
|
|
if [ "$success" = false ]; then
|
|
# Tenta com ip link diretamente
|
|
if ip link set "$interface" down && \
|
|
ip link set dev "$interface" address "$mac" && \
|
|
ip link set "$interface" up; then
|
|
echo "$(date): Sucesso ao definir MAC com 'ip link' para $interface (novo: $mac)" | tee -a "$log_file"
|
|
success=true
|
|
else
|
|
echo "$(date): Falha ao definir MAC para $interface com ambos os métodos." | tee -a "$log_file"
|
|
return 1
|
|
fi
|
|
fi
|
|
|
|
# Retorna sucesso (0) ou falha (1)
|
|
return $([ "$success" = true ] && echo 0 || echo 1)
|
|
}
|
|
|
|
# Function to configure static IP
|
|
configure_static_ip() {
|
|
local ip_script="/usr/local/bin/set_static_ip.sh"
|
|
|
|
if [ -f "$ip_script" ]; then
|
|
# Get current IP configuration
|
|
local interface
|
|
if interface=$(get_active_interface); then
|
|
local current_ip=$(ip -4 addr show "$interface" | grep -oP '(?<=inet\s)\d+(\.\d+){3}')
|
|
if [[ "$current_ip" =~ ^169\.254\. ]]; then
|
|
# Link-local address, likely no DHCP
|
|
log "No valid IP address found for $interface, configuring static IP..."
|
|
IP_ADDRESS_ENV="10.10.0.100/24" bash "$ip_script"
|
|
fi
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# Function to check if interface has IP address
|
|
has_ip_address() {
|
|
local interface="$1"
|
|
# Check if interface is UP and has an IPv4 address
|
|
if ip link show "$interface" | grep -q "state UP" && \
|
|
ip -4 addr show "$interface" | grep -q "inet "; then
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
# Function to disable Wi-Fi
|
|
disable_wifi() {
|
|
# Create log directory if it doesn't exist
|
|
mkdir -p /var/log
|
|
|
|
# Wait for 1 minute (60 seconds) before disabling Wi-Fi
|
|
echo "$(date): Waiting 60 seconds before checking eth0 IP and disabling Wi-Fi..." | tee -a /var/log/set_mac.log
|
|
sleep 60
|
|
|
|
# Check if eth0 has an IP address before disabling Wi-Fi
|
|
if has_ip_address "eth0"; then
|
|
if ip link show "wlan0" &> /dev/null; then
|
|
if ip link set "wlan0" down; then
|
|
echo "$(date): Wi-Fi (wlan0) disabled successfully (eth0 has IP)" | tee -a /var/log/set_mac.log
|
|
else
|
|
echo "$(date): Failed to disable Wi-Fi (wlan0)" | tee -a /var/log/set_mac.log
|
|
fi
|
|
else
|
|
echo "$(date): wlan0 interface not found (Wi-Fi already disabled?)" | tee -a /var/log/set_mac.log
|
|
fi
|
|
else
|
|
echo "$(date): eth0 does not have an IP address. Wi-Fi remains active." | tee -a /var/log/set_mac.log
|
|
fi
|
|
}
|
|
|
|
# --- Execution ---
|
|
# Set MAC for eth0 and disable Wi-Fi if successful
|
|
if set_mac "eth0" "$ETH0_MAC"; then
|
|
# Check if disable_wifi is already running
|
|
if ! pgrep -f "disable_wifi" > /dev/null; then
|
|
#configure_static_ip
|
|
disable_wifi &
|
|
else
|
|
echo "$(date): disable_wifi is already running" | tee -a /var/log/set_mac.log
|
|
fi
|
|
else
|
|
echo "$(date): Could not set MAC for eth0. Wi-Fi remains active" | tee -a /var/log/set_mac.log
|
|
fi
|
|
|
|
# Uncomment if you want to set MAC for wlan0 (optional)
|
|
# if [[ -n "$WLAN0_MAC" ]]; then
|
|
# set_mac "wlan0" "$WLAN0_MAC"
|
|
# fi
|