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SNAT: Additional tests for SNAT interfaces without a configured ip address

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Change-Id: I7edea5d7b105ba66e0e04d509968b92cfb64c84a
Signed-off-by: Martin Gálik <magalik@cisco.com>
This commit is contained in:
Martin Gálik
2017-05-04 04:35:04 -07:00
committed by Ole Trøan
parent 5d73eecd63
commit 406eb1df44
1 changed files with 161 additions and 1 deletions
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162
test/test_snat.py
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@ -313,7 +313,7 @@ class TestSNAT(MethodHolder):
cls.icmp_id_out = 6305
cls.snat_addr = '10.0.0.3'
cls.create_pg_interfaces(range(8))
cls.create_pg_interfaces(range(9))
cls.interfaces = list(cls.pg_interfaces[0:4])
for i in cls.interfaces:
@ -344,6 +344,7 @@ class TestSNAT(MethodHolder):
i.resolve_arp()
cls.pg7.admin_up()
cls.pg8.admin_up()
except Exception:
super(TestSNAT, cls).tearDownClass()
@ -353,6 +354,26 @@ class TestSNAT(MethodHolder):
"""
Clear SNAT configuration.
"""
# I found no elegant way to do this
self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n,
dst_address_length=32,
next_hop_address=self.pg7.remote_ip4n,
next_hop_sw_if_index=self.pg7.sw_if_index,
is_add=0)
self.vapi.ip_add_del_route(dst_address=self.pg8.remote_ip4n,
dst_address_length=32,
next_hop_address=self.pg8.remote_ip4n,
next_hop_sw_if_index=self.pg8.sw_if_index,
is_add=0)
for intf in [self.pg7, self.pg8]:
neighbors = self.vapi.ip_neighbor_dump(intf.sw_if_index)
for n in neighbors:
self.vapi.ip_neighbor_add_del(intf.sw_if_index,
n.mac_address,
n.ip_address,
is_add=0)
if self.pg7.has_ip4_config:
self.pg7.unconfig_ip4()
@ -1311,6 +1332,145 @@ class TestSNAT(MethodHolder):
capture = self.pg2.get_capture(len(pkts))
self.verify_capture_out(capture, nat_ip1)
def test_dynamic_ipless_interfaces(self):
""" SNAT interfaces without configured ip dynamic map """
self.vapi.ip_neighbor_add_del(self.pg7.sw_if_index,
self.pg7.remote_mac,
self.pg7.remote_ip4n,
is_static=1)
self.vapi.ip_neighbor_add_del(self.pg8.sw_if_index,
self.pg8.remote_mac,
self.pg8.remote_ip4n,
is_static=1)
self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n,
dst_address_length=32,
next_hop_address=self.pg7.remote_ip4n,
next_hop_sw_if_index=self.pg7.sw_if_index)
self.vapi.ip_add_del_route(dst_address=self.pg8.remote_ip4n,
dst_address_length=32,
next_hop_address=self.pg8.remote_ip4n,
next_hop_sw_if_index=self.pg8.sw_if_index)
self.snat_add_address(self.snat_addr)
self.vapi.snat_interface_add_del_feature(self.pg7.sw_if_index)
self.vapi.snat_interface_add_del_feature(self.pg8.sw_if_index,
is_inside=0)
# in2out
pkts = self.create_stream_in(self.pg7, self.pg8)
self.pg7.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.pg8.get_capture(len(pkts))
self.verify_capture_out(capture)
# out2in
pkts = self.create_stream_out(self.pg8, self.snat_addr)
self.pg8.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.pg7.get_capture(len(pkts))
self.verify_capture_in(capture, self.pg7)
def test_static_ipless_interfaces(self):
""" SNAT 1:1 NAT interfaces without configured ip """
self.vapi.ip_neighbor_add_del(self.pg7.sw_if_index,
self.pg7.remote_mac,
self.pg7.remote_ip4n,
is_static=1)
self.vapi.ip_neighbor_add_del(self.pg8.sw_if_index,
self.pg8.remote_mac,
self.pg8.remote_ip4n,
is_static=1)
self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n,
dst_address_length=32,
next_hop_address=self.pg7.remote_ip4n,
next_hop_sw_if_index=self.pg7.sw_if_index)
self.vapi.ip_add_del_route(dst_address=self.pg8.remote_ip4n,
dst_address_length=32,
next_hop_address=self.pg8.remote_ip4n,
next_hop_sw_if_index=self.pg8.sw_if_index)
self.snat_add_static_mapping(self.pg7.remote_ip4, self.snat_addr)
self.vapi.snat_interface_add_del_feature(self.pg7.sw_if_index)
self.vapi.snat_interface_add_del_feature(self.pg8.sw_if_index,
is_inside=0)
# out2in
pkts = self.create_stream_out(self.pg8)
self.pg8.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.pg7.get_capture(len(pkts))
self.verify_capture_in(capture, self.pg7)
# in2out
pkts = self.create_stream_in(self.pg7, self.pg8)
self.pg7.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.pg8.get_capture(len(pkts))
self.verify_capture_out(capture, self.snat_addr, True)
def test_static_with_port_ipless_interfaces(self):
""" SNAT 1:1 NAT with port interfaces without configured ip """
self.tcp_port_out = 30606
self.udp_port_out = 30607
self.icmp_id_out = 30608
self.vapi.ip_neighbor_add_del(self.pg7.sw_if_index,
self.pg7.remote_mac,
self.pg7.remote_ip4n,
is_static=1)
self.vapi.ip_neighbor_add_del(self.pg8.sw_if_index,
self.pg8.remote_mac,
self.pg8.remote_ip4n,
is_static=1)
self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n,
dst_address_length=32,
next_hop_address=self.pg7.remote_ip4n,
next_hop_sw_if_index=self.pg7.sw_if_index)
self.vapi.ip_add_del_route(dst_address=self.pg8.remote_ip4n,
dst_address_length=32,
next_hop_address=self.pg8.remote_ip4n,
next_hop_sw_if_index=self.pg8.sw_if_index)
self.snat_add_address(self.snat_addr)
self.snat_add_static_mapping(self.pg7.remote_ip4, self.snat_addr,
self.tcp_port_in, self.tcp_port_out,
proto=IP_PROTOS.tcp)
self.snat_add_static_mapping(self.pg7.remote_ip4, self.snat_addr,
self.udp_port_in, self.udp_port_out,
proto=IP_PROTOS.udp)
self.snat_add_static_mapping(self.pg7.remote_ip4, self.snat_addr,
self.icmp_id_in, self.icmp_id_out,
proto=IP_PROTOS.icmp)
self.vapi.snat_interface_add_del_feature(self.pg7.sw_if_index)
self.vapi.snat_interface_add_del_feature(self.pg8.sw_if_index,
is_inside=0)
# out2in
pkts = self.create_stream_out(self.pg8)
self.pg8.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.pg7.get_capture(len(pkts))
self.verify_capture_in(capture, self.pg7)
# in2out
pkts = self.create_stream_in(self.pg7, self.pg8)
self.pg7.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.pg8.get_capture(len(pkts))
self.verify_capture_out(capture)
def tearDown(self):
super(TestSNAT, self).tearDown()
if not self.vpp_dead: