Description
Brief description
How i understand the problem:
- In Wireshark i see "Known MCS information: 0x00" which results in all Fields (Bandwith, MCS index, Guard interval...) are Absent. maybe odd of Wireshark too, it highlights 3 Bytes but only 7 bits (the previous mentioned Fields) are shown to me.
- dot11.py RadioTap is parsing to the Antenna signal correctly, but then everything is off by one byte. (Type, Subtype, MAC Address.....). I guess if known mcs information is 0x00 set everything to None or something.
- RadioTap documentation i don't understand it.
Scapy version
2.5.0+git20240324.2858b51
Python version
3.12.4
Operating system
Linux 6.9.9
Additional environment information
No response
How to reproduce
could take some time and compare it with Wireshark.
def write_mcs(pkt):
wrpcap(filename='/tmp/mcs_issue.pcap', pkt=pkt, append=True)
print(f'{pkt} written.', flush=True)
sniff(
iface=interface,
store=False,
count=100,
prn=write_mcs,
lfilter=lambda x: x.present.value & 0x80000,
)
Actual result
No response
Expected result
No response
Related resources
I think maybe PR #3963 is the Solution. Yes, parsing works.