This version implements the support for Multipath TCP.
It affects the way TCP is handled by adding a packet type for TCP options. It
also adds a packet type MPTCP as subtype of a TCP option (see
scapy/layers/mptcp.py for details).
You can use the script "launcher" to start scapy with the modified script. It
works only if you are in the same directory that the python "scapy" module.
EXAMPLE RUN
===========
$ ./laucher
Welcome to Scapy (2.2.0)
>>> a=rdpcap("dumps/mptcp-capable.pcap")
>>> a
<mptcp-capable.pcap: TCP:1 UDP:0 ICMP:0 Other:0>
>>> a[0]
<CookedLinux pkttype=sent-by-us lladdrtype=0x1 lladdrlen=6 src='\x00%\xb3\x02\xd24' proto=0x800 |<IP version=4L ihl=5L tos=0x0 len=80 id=32501 flags=DF frag=0L ttl=64 proto=tcp chksum=0xa5a7 src=10.0.1.11 dst=10.0.1.1 options=[] |<TCP sport=44437 dport=www seq=559395504 ack=169850675 dataofs=15L reserved=0L flags=A window=28 chksum=0x164e urgptr=0 options=[<TCPOption_NOP kind=NOP |>, <TCPOption_NOP kind=NOP |>, <TCPOption_Timestamp kind=Timestamp length=10 timestamp_value=183387 timestamp_echo=178863 |>, <TCPOption_MP kind=MpTCP mptcp=<MPTCP_Capable length=20 subtype=MP_CAPABLE version=0L checksum_req=1L reserved=0L hmac_sha1=1L snd_key=1815828401224581229 rcv_key=8653733315196113643 |> |>, <TCPOption_MP kind=MpTCP mptcp=<MPTCP_AddAddr length=8 subtype=ADD_ADDR ipver=4L address_id=1 adv_addr=10.0.0.7 |> |>] |>>>
>> a[0].show2()
###[ cooked linux ]###
pkttype= sent-by-us
lladdrtype= 0x1
lladdrlen= 6
src= '\x00%\xb3\x02\xd24'
proto= 0x800
###[ IP ]###
version= 4L
ihl= 5L
tos= 0x0
len= 80
id= 32501
flags= DF
frag= 0L
ttl= 64
proto= tcp
chksum= 0xa5a7
src= 10.0.1.11
dst= 10.0.1.1
\options\
###[ TCP ]###
sport= 44437
dport= www
seq= 559395504
ack= 169850675
dataofs= 15L
reserved= 0L
flags= A
window= 28
chksum= 0x164e
urgptr= 0
\options\
|###[ No Operation ]###
| kind= NOP
|###[ No Operation ]###
| kind= NOP
|###[ Timestamp ]###
| kind= Timestamp
| length= 10
| timestamp_value= 183387
| timestamp_echo= 178863
|###[ Multipath TCP option ]###
| kind= MpTCP
| \mptcp\
| |###[ Multipath TCP capability ]###
| | length= 20
| | subtype= MP_CAPABLE
| | version= 0L
| | checksum_req= 1L
| | reserved= 0L
| | hmac_sha1= 1L
| | snd_key= 1815828401224581229
| | rcv_key= 8653733315196113643
|###[ Multipath TCP option ]###
| kind= MpTCP
| \mptcp\
| |###[ Multipath TCP Add Address ]###
| | length= 8
| | subtype= ADD_ADDR
| | ipver= 4L
| | address_id= 1
| | adv_addr= 10.0.0.7