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authorVladimir Isaev <visaev@netgate.com>2020-05-21 16:34:17 +0300
committerJohn Lo <loj@cisco.com>2020-06-08 14:17:59 +0000
commit698eb87a8eed847fe555ef327bcc99a4467ed59a (patch)
tree102c29c5d96a23a3e185e4d2d765f763445e8076 /test/test_vxlan6.py
parente3621518046ad7f37ccf77c549a93375ab89da19 (diff)
vxlan: Fixed checksum caclculation offset
VXLAN uses csum_offload for IPv6 packets. But without gso node we have csum calculated only for inner packet. This patch adds support for outer header csum calculation. Checksum for inner packet should be calculated before interface-output node (for example in vxlan node). Type: fix Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Signed-off-by: Vladimir Isaev <visaev@netgate.com> Change-Id: Ica68429ede4426293769207cd83c791ebe72fe56
Diffstat (limited to 'test/test_vxlan6.py')
-rw-r--r--test/test_vxlan6.py35
1 files changed, 33 insertions, 2 deletions
diff --git a/test/test_vxlan6.py b/test/test_vxlan6.py
index 3a11ea91db1..d9e2d8159d1 100644
--- a/test/test_vxlan6.py
+++ b/test/test_vxlan6.py
@@ -6,7 +6,8 @@ from framework import VppTestCase, VppTestRunner
from template_bd import BridgeDomain
from scapy.layers.l2 import Ether
-from scapy.layers.inet6 import IPv6, UDP
+from scapy.packet import Raw
+from scapy.layers.inet6 import IP, IPv6, UDP
from scapy.layers.vxlan import VXLAN
import util
@@ -80,7 +81,8 @@ class TestVxlan6(BridgeDomain, VppTestCase):
# Verify UDP destination port is VXLAN 4789, source UDP port could be
# arbitrary.
self.assertEqual(pkt[UDP].dport, type(self).dport)
- # TODO: checksum check
+ # Verify UDP checksum
+ self.assert_udp_checksum_valid(pkt, ignore_zero_checksum=False)
# Verify VNI
self.assertEqual(pkt[VXLAN].vni, vni)
@@ -190,6 +192,35 @@ class TestVxlan6(BridgeDomain, VppTestCase):
self.logger.info(self.vapi.cli("show bridge-domain 3 detail"))
self.logger.info(self.vapi.cli("show vxlan tunnel"))
+ def test_encap_fragmented_packet(self):
+ """ Encapsulation test send fragments from pg1
+ Verify receipt of encapsulated frames on pg0
+ """
+
+ frame = (Ether(src='00:00:00:00:00:02', dst='00:00:00:00:00:01') /
+ IP(src='4.3.2.1', dst='1.2.3.4') /
+ UDP(sport=20000, dport=10000) /
+ Raw(b'\xa5' * 1000))
+
+ frags = util.fragment_rfc791(frame, 400)
+
+ self.pg1.add_stream(frags)
+
+ self.pg0.enable_capture()
+
+ self.pg_start()
+
+ out = self.pg0.get_capture(3)
+
+ payload = []
+ for pkt in out:
+ payload.append(self.decapsulate(pkt))
+ self.check_encapsulation(pkt, self.single_tunnel_vni)
+
+ reassembled = util.reassemble4(payload)
+
+ self.assertEqual(Ether(raw(frame))[IP], reassembled[IP])
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)