57 lines
1.7 KiB
Python
57 lines
1.7 KiB
Python
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#!/usr/bin/env python3
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import subprocess
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import re
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CONFIG_FILE = "/etc/hostapd/hostapd.conf"
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def find_ap_interface():
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try:
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iw_dev_output = subprocess.check_output(["iw", "dev"], text=True)
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except Exception as e:
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print(f"Error running iw dev: {e}")
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return None
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interfaces = re.findall(r"Interface\s+(\w+)", iw_dev_output)
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for iface in interfaces:
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try:
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modes_output = subprocess.check_output(["iw", "dev", iface, "info"], text=True)
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# Check for AP mode support
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phy_output = subprocess.check_output(["iw", iface, "info"], text=True, stderr=subprocess.DEVNULL)
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except Exception:
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continue
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try:
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phy_name = re.search(r"wiphy (\d+)", modes_output)
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if not phy_name:
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continue
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phy_info = subprocess.check_output(["iw", "phy", f"phy{phy_name.group(1)}", "info"], text=True)
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if "AP" in phy_info:
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return iface
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except Exception:
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continue
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return None
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def update_config(interface_name):
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try:
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with open(CONFIG_FILE, "r") as f:
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lines = f.readlines()
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with open(CONFIG_FILE, "w") as f:
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for line in lines:
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if line.strip().startswith("interface="):
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f.write(f"interface={interface_name}\n")
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else:
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f.write(line)
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print(f"Updated {CONFIG_FILE} to use interface: {interface_name}")
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except Exception as e:
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print(f"Error updating config: {e}")
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if __name__ == "__main__":
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iface = find_ap_interface()
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if iface:
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update_config(iface)
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else:
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print("No AP-capable interface found.")
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