diff options
| author |   Klement Sekera <ksekera@cisco.com> | 2022-01-10 21:57:27 +0000 |
|---|---|---|
| committer |   Ole Tr�an <otroan@employees.org> | 2022-01-24 12:59:46 +0000 |
| commit | 56c492aa0502751de2dd9d890096a82c5f04776d (patch) | |
| tree | a2b8a1c300853070b26f9953a10bd1a4e41f3bdd /test/framework.py | |
| parent | 4634d02501235d3803a17839eeaf076110abcb18 (diff) | |
nat: TCP state tracking based on RFC 7857/RFC 6146
Implement proper state machine based on above RFCs. ACKs to SYNs/FINs
are no longer required/tracked. This is more friendly to peers and
accounts for lost packets and retransmits.
This change also means that all traffic is translated and forwarded
while in transitory timeout, which helps delivering e.g. retransmitted
FINs, FINACKs and other messages.
Also support reopening a session in transitory timeout after seeing both
FINs by seeing both SYNs again. This helps quick connection
reestablishment if the peers want to.
Type: improvement
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Signed-off-by: Miklos Tirpak <miklos.tirpak@gmail.com>
Change-Id: Ibf521c79463472db97e593bfa02b32b4a06dfd2a
Diffstat (limited to 'test/framework.py')
| -rw-r--r-- | test/framework.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/test/framework.py b/test/framework.py index f4b168b3c75..8c0df282153 100644 --- a/test/framework.py +++ b/test/framework.py @@ -26,7 +26,7 @@ from abc import ABC, abstractmethod from struct import pack, unpack import scapy.compat -from scapy.packet import Raw +from scapy.packet import Raw, Packet import hook as hookmodule from vpp_pg_interface import VppPGInterface from vpp_sub_interface import VppSubInterface @@ -1308,7 +1308,7 @@ class VppTestCase(CPUInterface, unittest.TestCase): def send_and_expect(self, intf, pkts, output, n_rx=None, worker=None, trace=True): if not n_rx: - n_rx = len(pkts) + n_rx = 1 if isinstance(pkts, Packet) else len(pkts) self.pg_send(intf, pkts, worker=worker, trace=trace) rx = output.get_capture(n_rx) if trace: |