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authorOle Troan <otroan@employees.org>2023-09-01 14:15:39 +0200
committerAndrew Yourtchenko <ayourtch@gmail.com>2023-09-04 15:14:46 +0000
commit34850e01876005422ba9523df5ae0400964e1c91 (patch)
treeb0d538e9dd54d6fa183e9e8fedb587edd41bae79 /test/test_npt66.py
parent77812045e720d1434dd36a1db90c35daad0c8e00 (diff)
npt66: checksum applied to src address instead of dst address on rx
Applied the checksum delta to the source address instead of the destination address in the RX direction. Cleaned up tests a little. Type: fix Change-Id: I871f3448365587e5319dfbca6ea356935321ff9b Signed-off-by: Ole Troan <otroan@employees.org>
Diffstat (limited to 'test/test_npt66.py')
-rw-r--r--test/test_npt66.py45
1 files changed, 27 insertions, 18 deletions
diff --git a/test/test_npt66.py b/test/test_npt66.py
index 5173c62d44f..6565c38aae0 100644
--- a/test/test_npt66.py
+++ b/test/test_npt66.py
@@ -29,35 +29,43 @@ class TestNPT66(VppTestCase):
i.admin_down()
super(TestNPT66, self).tearDown()
- def send_and_verify(self, in2out, internal, external):
- if in2out:
- sendif = self.pg0
- recvif = self.pg1
- local_mac = self.pg0.local_mac
- remote_mac = self.pg0.remote_mac
- src = ipaddress.ip_interface(internal).ip + 1
- dst = self.pg1.remote_ip6
- else:
- sendif = self.pg1
- recvif = self.pg0
- local_mac = self.pg1.local_mac
- remote_mac = self.pg1.remote_mac
- src = self.pg1.remote_ip6
- dst = ipaddress.ip_interface(external).ip + 1
+ def send_and_verify(self, internal):
+ sendif = self.pg0
+ recvif = self.pg1
+ local_mac = self.pg0.local_mac
+ remote_mac = self.pg0.remote_mac
+ src = ipaddress.ip_interface(internal).ip + 1
+ dst = self.pg1.remote_ip6
p = (
Ether(dst=local_mac, src=remote_mac)
/ IPv6(src=src, dst=dst)
/ ICMPv6EchoRequest()
+ / Raw(b"Request")
)
rxs = self.send_and_expect(sendif, p, recvif)
for rx in rxs:
- rx.show2()
original_cksum = rx[ICMPv6EchoRequest].cksum
del rx[ICMPv6EchoRequest].cksum
rx = rx.__class__(bytes(rx))
self.assertEqual(original_cksum, rx[ICMPv6EchoRequest].cksum)
+ # Generate a replies
+ reply = (
+ Ether(dst=rx[Ether].src, src=local_mac)
+ / IPv6(src=rx[IPv6].dst, dst=rx[IPv6].src)
+ / ICMPv6EchoRequest()
+ / Raw(b"Reply")
+ )
+
+ replies = self.send_and_expect(recvif, reply, sendif)
+ for r in replies:
+ self.assertEqual(str(p[IPv6].src), r[IPv6].dst)
+ original_cksum = r[ICMPv6EchoRequest].cksum
+ del r[ICMPv6EchoRequest].cksum
+ r = r.__class__(bytes(r))
+ self.assertEqual(original_cksum, r[ICMPv6EchoRequest].cksum)
+
def do_test(self, internal, external):
self.vapi.npt66_binding_add_del(
sw_if_index=self.pg1.sw_if_index,
@@ -65,10 +73,10 @@ class TestNPT66(VppTestCase):
external=external,
is_add=True,
)
+ ## TODO use route api
self.vapi.cli(f"ip route add {internal} via {self.pg0.remote_ip6}")
- self.send_and_verify(True, internal, external)
- self.send_and_verify(False, internal, external)
+ self.send_and_verify(internal)
self.vapi.npt66_binding_add_del(
sw_if_index=self.pg1.sw_if_index,
@@ -80,6 +88,7 @@ class TestNPT66(VppTestCase):
def test_npt66_simple(self):
"""Send and receive a packet through NPT66"""
+ self.do_test("fd00:0000:0000::/48", "2001:4650:c3ed::/48")
self.do_test("fc00:1::/48", "2001:db8:1::/48")
self.do_test("fc00:1234::/32", "2001:db8:1::/32")
self.do_test("fc00:1234::/63", "2001:db8:1::/56")