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-rw-r--r--test/test_gtpu.py185
1 files changed, 105 insertions, 80 deletions
diff --git a/test/test_gtpu.py b/test/test_gtpu.py
index e4a2bfa3670..a6d54f53357 100644
--- a/test/test_gtpu.py
+++ b/test/test_gtpu.py
@@ -21,7 +21,7 @@ from vpp_ip import INVALID_INDEX
@tag_fixme_vpp_workers
class TestGtpuUDP(VppTestCase):
- """ GTPU UDP ports Test Case """
+ """GTPU UDP ports Test Case"""
def setUp(self):
super(TestGtpuUDP, self).setUp()
@@ -39,15 +39,16 @@ class TestGtpuUDP(VppTestCase):
def _check_udp_port_ip4(self, enabled=True):
- pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) /
- IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
- UDP(sport=self.dport, dport=self.dport, chksum=0))
+ pkt = (
+ Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac)
+ / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4)
+ / UDP(sport=self.dport, dport=self.dport, chksum=0)
+ )
self.pg0.add_stream(pkt)
self.pg_start()
- err = self.statistics.get_counter(
- '/err/ip4-udp-lookup/no_listener')[0]
+ err = self.statistics.get_counter("/err/ip4-udp-lookup/no_listener")[0]
if enabled:
self.assertEqual(err, self.ip4_err)
@@ -58,15 +59,16 @@ class TestGtpuUDP(VppTestCase):
def _check_udp_port_ip6(self, enabled=True):
- pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) /
- IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
- UDP(sport=self.dport, dport=self.dport, chksum=0))
+ pkt = (
+ Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac)
+ / IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6)
+ / UDP(sport=self.dport, dport=self.dport, chksum=0)
+ )
self.pg0.add_stream(pkt)
self.pg_start()
- err = self.statistics.get_counter(
- '/err/ip6-udp-lookup/no_listener')[0]
+ err = self.statistics.get_counter("/err/ip6-udp-lookup/no_listener")[0]
if enabled:
self.assertEqual(err, self.ip6_err)
@@ -76,46 +78,54 @@ class TestGtpuUDP(VppTestCase):
self.ip6_err = err
def test_udp_port(self):
- """ test UDP ports
+ """test UDP ports
Check if there are no udp listeners before gtpu is enabled
"""
# UDP ports should be disabled unless a tunnel is configured
self._check_udp_port_ip4(False)
self._check_udp_port_ip6(False)
- r = self.vapi.gtpu_add_del_tunnel(is_add=True,
- mcast_sw_if_index=0xFFFFFFFF,
- decap_next_index=0xFFFFFFFF,
- src_address=self.pg0.local_ip4,
- dst_address=self.pg0.remote_ip4)
+ r = self.vapi.gtpu_add_del_tunnel(
+ is_add=True,
+ mcast_sw_if_index=0xFFFFFFFF,
+ decap_next_index=0xFFFFFFFF,
+ src_address=self.pg0.local_ip4,
+ dst_address=self.pg0.remote_ip4,
+ )
# UDP port 2152 enabled for ip4
self._check_udp_port_ip4()
- r = self.vapi.gtpu_add_del_tunnel(is_add=True,
- mcast_sw_if_index=0xFFFFFFFF,
- decap_next_index=0xFFFFFFFF,
- src_address=self.pg0.local_ip6,
- dst_address=self.pg0.remote_ip6)
+ r = self.vapi.gtpu_add_del_tunnel(
+ is_add=True,
+ mcast_sw_if_index=0xFFFFFFFF,
+ decap_next_index=0xFFFFFFFF,
+ src_address=self.pg0.local_ip6,
+ dst_address=self.pg0.remote_ip6,
+ )
# UDP port 2152 enabled for ip6
self._check_udp_port_ip6()
- r = self.vapi.gtpu_add_del_tunnel(is_add=False,
- mcast_sw_if_index=0xFFFFFFFF,
- decap_next_index=0xFFFFFFFF,
- src_address=self.pg0.local_ip4,
- dst_address=self.pg0.remote_ip4)
+ r = self.vapi.gtpu_add_del_tunnel(
+ is_add=False,
+ mcast_sw_if_index=0xFFFFFFFF,
+ decap_next_index=0xFFFFFFFF,
+ src_address=self.pg0.local_ip4,
+ dst_address=self.pg0.remote_ip4,
+ )
- r = self.vapi.gtpu_add_del_tunnel(is_add=False,
- mcast_sw_if_index=0xFFFFFFFF,
- decap_next_index=0xFFFFFFFF,
- src_address=self.pg0.local_ip6,
- dst_address=self.pg0.remote_ip6)
+ r = self.vapi.gtpu_add_del_tunnel(
+ is_add=False,
+ mcast_sw_if_index=0xFFFFFFFF,
+ decap_next_index=0xFFFFFFFF,
+ src_address=self.pg0.local_ip6,
+ dst_address=self.pg0.remote_ip6,
+ )
class TestGtpu(BridgeDomain, VppTestCase):
- """ GTPU Test Case """
+ """GTPU Test Case"""
def __init__(self, *args):
BridgeDomain.__init__(self)
@@ -126,14 +136,16 @@ class TestGtpu(BridgeDomain, VppTestCase):
Encapsulate the original payload frame by adding GTPU header with its
UDP, IP and Ethernet fields
"""
- return (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
- IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
- UDP(sport=self.dport, dport=self.dport, chksum=0) /
- GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) /
- pkt)
+ return (
+ Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
+ / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4)
+ / UDP(sport=self.dport, dport=self.dport, chksum=0)
+ / GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150)
+ / pkt
+ )
def ip_range(self, start, end):
- """ range of remote ip's """
+ """range of remote ip's"""
return ip4_range(self.pg0.remote_ip4, start, end)
def encap_mcast(self, pkt, src_ip, src_mac, vni):
@@ -141,11 +153,13 @@ class TestGtpu(BridgeDomain, VppTestCase):
Encapsulate the original payload frame by adding GTPU header with its
UDP, IP and Ethernet fields
"""
- return (Ether(src=src_mac, dst=self.mcast_mac) /
- IP(src=src_ip, dst=self.mcast_ip4) /
- UDP(sport=self.dport, dport=self.dport, chksum=0) /
- GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) /
- pkt)
+ return (
+ Ether(src=src_mac, dst=self.mcast_mac)
+ / IP(src=src_ip, dst=self.mcast_ip4)
+ / UDP(sport=self.dport, dport=self.dport, chksum=0)
+ / GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150)
+ / pkt
+ )
def decapsulate(self, pkt):
"""
@@ -178,7 +192,7 @@ class TestGtpu(BridgeDomain, VppTestCase):
self.assertEqual(pkt[GTP_U_Header].teid, vni)
def test_encap(self):
- """ Encapsulation test
+ """Encapsulation test
Send frames from pg1
Verify receipt of encapsulated frames on pg0
"""
@@ -197,7 +211,7 @@ class TestGtpu(BridgeDomain, VppTestCase):
# self.assert_eq_pkts(payload, self.frame_reply)
def test_ucast_flood(self):
- """ Unicast flood test
+ """Unicast flood test
Send frames from pg3
Verify receipt of encapsulated frames on pg0
"""
@@ -215,7 +229,7 @@ class TestGtpu(BridgeDomain, VppTestCase):
# self.assert_eq_pkts(payload, self.frame_reply)
def test_mcast_flood(self):
- """ Multicast flood test
+ """Multicast flood test
Send frames from pg2
Verify receipt of encapsulated frames on pg0
"""
@@ -228,8 +242,9 @@ class TestGtpu(BridgeDomain, VppTestCase):
# Pick first received frame and check if it's correctly encapsulated.
out = self.pg0.get_capture(1)
pkt = out[0]
- self.check_encapsulation(pkt, self.mcast_flood_bd,
- local_only=False, mcast_pkt=True)
+ self.check_encapsulation(
+ pkt, self.mcast_flood_bd, local_only=False, mcast_pkt=True
+ )
# payload = self.decapsulate(pkt)
# self.assert_eq_pkts(payload, self.frame_reply)
@@ -240,13 +255,15 @@ class TestGtpu(BridgeDomain, VppTestCase):
ip_range_start = 10
ip_range_end = ip_range_start + n_ucast_tunnels
next_hop_address = cls.pg0.remote_ip4
- for dest_ip4 in ip4_range(next_hop_address, ip_range_start,
- ip_range_end):
+ for dest_ip4 in ip4_range(next_hop_address, ip_range_start, ip_range_end):
# add host route so dest_ip4 will not be resolved
- rip = VppIpRoute(cls, dest_ip4, 32,
- [VppRoutePath(next_hop_address,
- INVALID_INDEX)],
- register=False)
+ rip = VppIpRoute(
+ cls,
+ dest_ip4,
+ 32,
+ [VppRoutePath(next_hop_address, INVALID_INDEX)],
+ register=False,
+ )
rip.add_vpp_config()
r = cls.vapi.gtpu_add_del_tunnel(
is_add=True,
@@ -254,9 +271,11 @@ class TestGtpu(BridgeDomain, VppTestCase):
decap_next_index=0xFFFFFFFF,
src_address=cls.pg0.local_ip4,
dst_address=dest_ip4,
- teid=teid)
- cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
- bd_id=teid)
+ teid=teid,
+ )
+ cls.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=r.sw_if_index, bd_id=teid
+ )
@classmethod
def add_del_shared_mcast_dst_load(cls, is_add):
@@ -274,8 +293,9 @@ class TestGtpu(BridgeDomain, VppTestCase):
dst_address=cls.mcast_ip4,
mcast_sw_if_index=1,
teid=teid,
- is_add=is_add)
- if r.sw_if_index == 0xffffffff:
+ is_add=is_add,
+ )
+ if r.sw_if_index == 0xFFFFFFFF:
raise ValueError("bad sw_if_index: ~0")
@classmethod
@@ -294,16 +314,16 @@ class TestGtpu(BridgeDomain, VppTestCase):
n_distinct_dst_tunnels = 20
ip_range_start = 10
ip_range_end = ip_range_start + n_distinct_dst_tunnels
- for dest_ip4 in ip4_range(cls.mcast_ip4, ip_range_start,
- ip_range_end):
- teid = int(dest_ip4.split('.')[3])
+ for dest_ip4 in ip4_range(cls.mcast_ip4, ip_range_start, ip_range_end):
+ teid = int(dest_ip4.split(".")[3])
cls.vapi.gtpu_add_del_tunnel(
decap_next_index=0xFFFFFFFF,
src_address=cls.pg0.local_ip4,
dst_address=dest_ip4,
mcast_sw_if_index=1,
teid=teid,
- is_add=is_add)
+ is_add=is_add,
+ )
@classmethod
def add_mcast_tunnels_load(cls):
@@ -324,7 +344,7 @@ class TestGtpu(BridgeDomain, VppTestCase):
try:
cls.dport = 2152
- cls.gtp_type = 0xff
+ cls.gtp_type = 0xFF
# Create 2 pg interfaces.
cls.create_pg_interfaces(range(4))
@@ -338,7 +358,7 @@ class TestGtpu(BridgeDomain, VppTestCase):
cls.pg0.resolve_arp()
# Our Multicast address
- cls.mcast_ip4 = '239.1.1.1'
+ cls.mcast_ip4 = "239.1.1.1"
cls.mcast_mac = util.mcast_ip_to_mac(cls.mcast_ip4)
# Create GTPU VTEP on VPP pg0, and put gtpu_tunnel0 and pg1
@@ -351,28 +371,33 @@ class TestGtpu(BridgeDomain, VppTestCase):
decap_next_index=0xFFFFFFFF,
src_address=cls.pg0.local_ip4,
dst_address=cls.pg0.remote_ip4,
- teid=cls.single_tunnel_vni)
- cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
- bd_id=cls.single_tunnel_bd)
+ teid=cls.single_tunnel_vni,
+ )
cls.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=cls.pg1.sw_if_index, bd_id=cls.single_tunnel_bd)
+ rx_sw_if_index=r.sw_if_index, bd_id=cls.single_tunnel_bd
+ )
+ cls.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=cls.pg1.sw_if_index, bd_id=cls.single_tunnel_bd
+ )
# Setup teid 2 to test multicast flooding
cls.n_ucast_tunnels = 10
cls.mcast_flood_bd = 12
- cls.create_gtpu_flood_test_bd(cls.mcast_flood_bd,
- cls.n_ucast_tunnels)
+ cls.create_gtpu_flood_test_bd(cls.mcast_flood_bd, cls.n_ucast_tunnels)
r = cls.vapi.gtpu_add_del_tunnel(
is_add=True,
src_address=cls.pg0.local_ip4,
dst_address=cls.mcast_ip4,
mcast_sw_if_index=1,
decap_next_index=0xFFFFFFFF,
- teid=cls.mcast_flood_bd)
- cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
- bd_id=cls.mcast_flood_bd)
+ teid=cls.mcast_flood_bd,
+ )
+ cls.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=r.sw_if_index, bd_id=cls.mcast_flood_bd
+ )
cls.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=cls.pg2.sw_if_index, bd_id=cls.mcast_flood_bd)
+ rx_sw_if_index=cls.pg2.sw_if_index, bd_id=cls.mcast_flood_bd
+ )
# Add and delete mcast tunnels to check stability
cls.add_shared_mcast_dst_load()
@@ -382,10 +407,10 @@ class TestGtpu(BridgeDomain, VppTestCase):
# Setup teid 3 to test unicast flooding
cls.ucast_flood_bd = 13
- cls.create_gtpu_flood_test_bd(cls.ucast_flood_bd,
- cls.n_ucast_tunnels)
+ cls.create_gtpu_flood_test_bd(cls.ucast_flood_bd, cls.n_ucast_tunnels)
cls.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=cls.pg3.sw_if_index, bd_id=cls.ucast_flood_bd)
+ rx_sw_if_index=cls.pg3.sw_if_index, bd_id=cls.ucast_flood_bd
+ )
except Exception:
super(TestGtpu, cls).tearDownClass()
raise
@@ -409,5 +434,5 @@ class TestGtpu(BridgeDomain, VppTestCase):
self.logger.info(self.vapi.cli("show trace"))
-if __name__ == '__main__':
+if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)