102 lines
2.7 KiB
Bash
Executable File
102 lines
2.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# Display information about the required options
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usage() {
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cat <<'EOF'
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Usage: $(basename "$0") -i <interface>
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Options:
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-i, --iface Network interface name (e.g., wlan1, eth1). Required.
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-h, --help Show this help and exit.
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Example:
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$(basename "$0") -i wlan1
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EOF
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}
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iface="wlan1"
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# Check if script is run as root
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if [[ $EUID -ne 0 ]]; then
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echo "[!] This script requires root permissions." >&2
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exit 1
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fi
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# Translate long options to short for getopts
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# Keeping the script POSIX-friendly without relying on GNU getopt
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if [[ $# -gt 0 ]]; then
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args=()
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--iface) args+=("-i"); shift ;;
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--help) args+=("-h"); shift ;;
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*) args+=("$1"); shift ;;
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esac
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done
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set -- "${args[@]}"
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fi
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# Parse short options
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while getopts ":i:h" opt; do
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case "$opt" in
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i) iface="$OPTARG" ;;
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h) usage; exit 0 ;;
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\?) echo "Error: Invalid option -$OPTARG" >&2; usage; exit 1 ;;
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:) echo "Error: Option -$OPTARG requires an argument." >&2; usage; exit 1 ;;
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esac
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done
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# Require -i/--iface
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if [[ -z "${iface}" ]]; then
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echo "Error: A network interface must be pecified with -i/--iface." >&2
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echo "Example: $(basename "$0") -i wlan1" >&2
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exit 1
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fi
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# Validate the interface exists on the system
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if ! ip link show "$iface" &>/dev/null; then
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echo "Error: Interface '$iface' does not exist on this system." >&2
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exit 1
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fi
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# Check if airodump-ng is installed
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if ! command -v airodump-ng &>/dev/null; then
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read -r -p "[!] airodump-ng is not installed. Install it now? (Y/n): " choice
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choice=${choice:-Y}
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if [[ $choice =~ ^[Yy]$ ]]; then
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if ! apt update || ! apt install -y aircrack-ng; then
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echo "[!] Installation failed. Exiting."
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exit 1
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fi
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else
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echo "[!] airodump-ng is required. Exiting."
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exit 1
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fi
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fi
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echo "[+] Preparing $iface for monitor mode..."
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nmcli device set "$iface" managed no
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ip link set "$iface" down
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iw dev "$iface" set type monitor
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ip link set "$iface" up
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# Check for hostapd-wpe.conf in the current directory
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# For monitoring only used for using the same channel as the ap
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if [[ -f "hostapd-wpe.conf" ]]; then
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echo "[+] Found hostapd-wpe.conf in the current directory. Using it."
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# Import channel variable only
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source <(grep -E '^[[:space:]]*channel[[:space:]]*=' hostapd-wpe.conf)
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else
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echo "[!] hostapd-wpe.conf not found in the current directory. Using the default: /etc/hostapd-wpe/hostapd-wpe.conf"
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source <(grep -E '^[[:space:]]*channel[[:space:]]*=' /etc/hostapd-wpe/hostapd-wpe.conf)
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fi
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TIMESTAMP="$(date '+%Y-%m-%d_%H-%M-%S')"
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# Start monitoring
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if ! airodump-ng --channel $channel -w wpa-${TIMESTAMP} "$iface"; then
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echo "[!] Failed to start airodump-ng. Exiting."
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exit 1
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fi
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