Enhance get_aps_on_channel function to include BSSID parameter and improve packet handling with debug output

This commit is contained in:
Yaro Kasear 2025-04-14 15:59:22 -05:00
parent 9b19c07b7a
commit d69890fc3c

View file

@ -148,7 +148,7 @@ def get_clients_on_channel(capture, ap_channel, ap_bssid):
return len(clients)
def get_aps_on_channel(capture, ap_channel):
def get_aps_on_channel(capture, ap_channel, ap_bssid):
try:
ap_channel = int(ap_channel)
except ValueError:
@ -162,37 +162,45 @@ def get_aps_on_channel(capture, ap_channel):
if not hasattr(packet, 'radiotap') or not hasattr(packet, 'wlan'):
continue
# Pull the radiotap channel frequency
packet_freq = getattr(packet.radiotap.channel, 'freq', None)
if packet_freq is None:
print("[DEBUG] No channel frequency found.")
continue
packet_freq = int(packet_freq)
packet_channel = get_channel_from_freq(packet_freq)
if packet_channel != ap_channel:
print(f"[DEBUG] Skipped packet on channel {packet_channel}, looking for {ap_channel}")
continue
# Manually decode frame control field
fc_raw = getattr(packet.wlan, 'fc', None)
if not fc_raw:
print("[DEBUG] No FC field found.")
continue
fc_int = int(fc_raw, 16)
frame_type = (fc_int >> 2) & 0b11
subtype = (fc_int >> 4) & 0b1111
# Beacon (8) or Probe Response (5) frames only
print(f"[DEBUG] FC: {fc_raw}, frame_type: {frame_type}, subtype: {subtype}")
if frame_type != 0 or subtype not in (5, 8):
print("[DEBUG] Not a Beacon or Probe Response.")
continue
bssid = getattr(packet.wlan, 'bssid', '').lower()
if bssid:
print(f"[DEBUG] Adding BSSID: {bssid}")
aps.add(bssid)
else:
print("[DEBUG] No BSSID found.")
except Exception as e:
print(f"[DEBUG] Failed packet: {e}")
continue
print(f"[DEBUG] Final AP count: {len(aps)} | APs: {sorted(aps)}")
return len(aps)
def analyze_pcap(pcapng_path, start_ts, end_ts, ap_bssid, ap_channel):