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