I am trying to remove a sub layer is scapy and was wondering how I can I select the sublayer?
For context the "Multipath TCP option" is the sub layer that I am interested in removing. This layer as seen below falls under the TCP layer in scapy. Any help would be great.
###[ TCP ]###
sport = http
dport = 35446
seq = 2431624968
ack = 3319728884
dataofs = 13L
reserved = 0L
flags = A
window = 233
chksum = 0xb518
urgptr = 0
\options \
|###[ No Operation ]###
| kind = NOP
|###[ No Operation ]###
| kind = NOP
|###[ Timestamp ]###
| kind = Timestamp
| length = 10
| timestamp_value= 3970740631
| timestamp_echo= 11847444
|###[ Multipath TCP option ]###
| kind = MpTCP
| \mptcp \
| |###[ Multipath TCP Data Sequence Signal ]###
| | length = 20
| | subtype = DSS
| | reserved = 0L
| | flags = AM
| | data_ack = 2484809684
| | dsn = 2431624968
| | subflow_seqnum= 1429
| | datalevel_len= 1428
| | checksum = 0xa08b
I am not sure, but scapy has the method remove_"eg payload"()
. Maybe you will find more information in the documentation. TCPOptions is defined in scapy->layers->inet.py.
Another way is to build a new pcap. Thats the unclean way, but this works too.
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