104 lines
2.8 KiB
Bash
Executable File
104 lines
2.8 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 "$0") -i <interface>
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Options:
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-i, --iface Network interface name (e.g., wlan0, eth0). Required.
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-h, --help Show this help and exit.
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Example:
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$(basename "$0") -i wlan0
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EOF
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}
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iface="wlan0"
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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 "$0") -i wlan0" >&2
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exit 1
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fi
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# Validate the interface exists on the system
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if ! ip link show "$iface" &>/dev/null; then
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echo "Error: Interface '$iface' does not exist on this system." >&2
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exit 1
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fi
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# Check if hostapd-wpe is installed
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if ! command -v hostapd-wpe &>/dev/null; then
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read -r -p "[!] hostapd-wpe is not installed. Install it now? (Y/n): " choice
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choice=${choice:-Y}
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if [[ $choice =~ ^[Yy]$ ]]; then
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if ! apt update || ! apt install -y hostapd-wpe; 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 "[!] hostapd-wpe 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 $iface for hostapd-wpe..."
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nmcli device set "$iface" managed no
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ip link set "$iface" down
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ip link set "$iface" up
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# Check for hostapd-wpe.conf in the current directory
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if [[ -f "hostapd-wpe.conf" ]]; then
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if grep -q '^interface=' hostapd-wpe.conf; then
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sed -i "s/^interface=.*/interface=$iface/" hostapd-wpe.conf
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echo "[+] Updated existing interface definition in hostapd-wpe.conf."
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else
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echo "interface=$iface" >> hostapd-wpe.conf
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echo "[+] Added missing interface definition to hostapd-wpe.conf."
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fi
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echo "[+] Found hostapd-wpe.conf in the current directory. Using it."
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config_file="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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config_file="/etc/hostapd-wpe/hostapd-wpe.conf"
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fi
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# Launch hostapd-wpe
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if ! hostapd-wpe -k "$config_file"; then
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echo "[!] Failed to start hostapd-wpe. Exiting."
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exit 1
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fi
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