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SNAT: Remove the oldest translation fix (VPP-568)

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Fixed bug and add test.

Change-Id: Ibe70dfc81e6c264223050d316cf6a2a3a0e1524e
Signed-off-by: Matus Fabian <matfabia@cisco.com>
This commit is contained in:
Matus Fabian
2016-12-21 23:58:46 -08:00
committed by Damjan Marion
parent 20d1232532
commit 9902fcd3e0
4 changed files with 41 additions and 8 deletions
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27
test/test_snat.py
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@ -589,6 +589,33 @@ class TestSNAT(VppTestCase):
self.logger.error(ppp("Unexpected or invalid packet:"), p)
raise
def test_max_translations_per_user(self):
""" MAX translations per user - recycle the least recently used """
self.snat_add_address(self.snat_addr)
self.vapi.snat_interface_add_del_feature(self.pg0.sw_if_index)
self.vapi.snat_interface_add_del_feature(self.pg1.sw_if_index,
is_inside=0)
# get maximum number of translations per user
snat_config = self.vapi.snat_show_config()
# send more than maximum number of translations per user packets
pkts_num = snat_config.max_translations_per_user + 5
pkts = []
for port in range(0, pkts_num):
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
TCP(sport=1025 + port))
pkts.append(p)
self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# verify number of translated packet
capture = self.pg1.get_capture()
self.assertEqual(pkts_num, len(capture))
def tearDown(self):
super(TestSNAT, self).tearDown()
if not self.vpp_dead: