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-rw-r--r--test/test_ip4.py268
1 files changed, 266 insertions, 2 deletions
diff --git a/test/test_ip4.py b/test/test_ip4.py
index d219ec9f981..f67c3b9ce32 100644
--- a/test/test_ip4.py
+++ b/test/test_ip4.py
@@ -1,7 +1,7 @@
#!/usr/bin/env python
-
-import unittest
+import random
import socket
+import unittest
from framework import VppTestCase, VppTestRunner
from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
@@ -201,5 +201,269 @@ class TestIPv4(VppTestCase):
self.verify_capture(i, pkts)
+class TestIPv4FibCrud(VppTestCase):
+ """ FIB - add/update/delete - ip4 routes
+
+ Test scenario:
+ - add 1k,
+ - del 100,
+ - add new 1k,
+ - del 1.5k
+
+ ..note:: Python API is to slow to add many routes, needs C code replacement.
+ """
+
+ def config_fib_many_to_one(self, start_dest_addr, next_hop_addr, count):
+ """
+
+ :param start_dest_addr:
+ :param next_hop_addr:
+ :param count:
+ :return list: added ips with 32 prefix
+ """
+ added_ips = []
+ dest_addr = int(
+ socket.inet_pton(socket.AF_INET, start_dest_addr).encode('hex'), 16)
+ dest_addr_len = 32
+ n_next_hop_addr = socket.inet_pton(socket.AF_INET, next_hop_addr)
+ for _ in range(count):
+ n_dest_addr = '{:08x}'.format(dest_addr).decode('hex')
+ self.vapi.ip_add_del_route(n_dest_addr, dest_addr_len,
+ n_next_hop_addr)
+ added_ips.append(socket.inet_ntoa(n_dest_addr))
+ dest_addr += 1
+ return added_ips
+
+ def unconfig_fib_many_to_one(self, start_dest_addr, next_hop_addr, count):
+
+ removed_ips = []
+ dest_addr = int(
+ socket.inet_pton(socket.AF_INET, start_dest_addr).encode('hex'), 16)
+ dest_addr_len = 32
+ n_next_hop_addr = socket.inet_pton(socket.AF_INET, next_hop_addr)
+ for _ in range(count):
+ n_dest_addr = '{:08x}'.format(dest_addr).decode('hex')
+ self.vapi.ip_add_del_route(n_dest_addr, dest_addr_len,
+ n_next_hop_addr, is_add=0)
+ removed_ips.append(socket.inet_ntoa(n_dest_addr))
+ dest_addr += 1
+ return removed_ips
+
+ def create_stream(self, src_if, dst_if, dst_ips, count):
+ pkts = []
+
+ for _ in range(count):
+ dst_addr = random.choice(dst_ips)
+ info = self.create_packet_info(
+ src_if.sw_if_index, dst_if.sw_if_index)
+ payload = self.info_to_payload(info)
+ p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
+ IP(src=src_if.remote_ip4, dst=dst_addr) /
+ UDP(sport=1234, dport=1234) /
+ Raw(payload))
+ info.data = p.copy()
+ size = random.choice(self.pg_if_packet_sizes)
+ self.extend_packet(p, random.choice(self.pg_if_packet_sizes))
+ pkts.append(p)
+
+ return pkts
+
+ def _find_ip_match(self, find_in, pkt):
+ for p in find_in:
+ if self.payload_to_info(str(p[Raw])) == self.payload_to_info(str(pkt[Raw])):
+ if p[IP].src != pkt[IP].src:
+ break
+ if p[IP].dst != pkt[IP].dst:
+ break
+ if p[UDP].sport != pkt[UDP].sport:
+ break
+ if p[UDP].dport != pkt[UDP].dport:
+ break
+ return p
+ return None
+
+ @staticmethod
+ def _match_route_detail(route_detail, ip, address_length=32, table_id=0):
+ if route_detail.address == socket.inet_pton(socket.AF_INET, ip):
+ if route_detail.table_id != table_id:
+ return False
+ elif route_detail.address_length != address_length:
+ return False
+ else:
+ return True
+ else:
+ return False
+
+ def verify_capture(self, dst_interface, received_pkts, expected_pkts):
+ self.assertEqual(len(received_pkts), len(expected_pkts))
+ to_verify = list(expected_pkts)
+ for p in received_pkts:
+ self.assertEqual(p.src, dst_interface.local_mac)
+ self.assertEqual(p.dst, dst_interface.remote_mac)
+ x = self._find_ip_match(to_verify, p)
+ to_verify.remove(x)
+ self.assertListEqual(to_verify, [])
+
+ def verify_route_dump(self, fib_dump, ips):
+
+ def _ip_in_route_dump(ip, fib_dump):
+ return next((route for route in fib_dump
+ if self._match_route_detail(route, ip)),
+ False)
+
+ for ip in ips:
+ self.assertTrue(_ip_in_route_dump(ip, fib_dump),
+ 'IP {} is not in fib dump.'.format(ip))
+
+ def verify_not_in_route_dump(self, fib_dump, ips):
+
+ def _ip_in_route_dump(ip, fib_dump):
+ return next((route for route in fib_dump
+ if self._match_route_detail(route, ip)),
+ False)
+
+ for ip in ips:
+ self.assertFalse(_ip_in_route_dump(ip, fib_dump),
+ 'IP {} is in fib dump.'.format(ip))
+
+ @classmethod
+ def setUpClass(cls):
+ """
+ #. Create and initialize 3 pg interfaces.
+ #. initialize class attributes configured_routes and deleted_routes
+ to store information between tests.
+ """
+ super(TestIPv4FibCrud, cls).setUpClass()
+
+ try:
+ # create 3 pg interfaces
+ cls.create_pg_interfaces(range(3))
+
+ cls.interfaces = list(cls.pg_interfaces)
+
+ # setup all interfaces
+ for i in cls.interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ cls.configured_routes = []
+ cls.deleted_routes = []
+ cls.pg_if_packet_sizes = [64, 512, 1518, 9018]
+
+ except Exception:
+ super(TestIPv4FibCrud, cls).tearDownClass()
+ raise
+
+ def setUp(self):
+ super(TestIPv4FibCrud, self).setUp()
+ self.packet_infos = {}
+
+ def test_1_add_routes(self):
+ """ Add 1k routes
+
+ - add 100 routes check with traffic script.
+ """
+ # config 1M FIB entries
+ self.configured_routes.extend(self.config_fib_many_to_one(
+ "10.0.0.0", self.pg0.remote_ip4, 100))
+
+ fib_dump = self.vapi.ip_fib_dump()
+ self.verify_route_dump(fib_dump, self.configured_routes)
+
+ self.stream_1 = self.create_stream(
+ self.pg1, self.pg0, self.configured_routes, 100)
+ self.stream_2 = self.create_stream(
+ self.pg2, self.pg0, self.configured_routes, 100)
+ self.pg1.add_stream(self.stream_1)
+ self.pg2.add_stream(self.stream_2)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ pkts = self.pg0.get_capture()
+ self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
+
+
+ def test_2_del_routes(self):
+ """ Delete 100 routes
+
+ - delete 10 routes check with traffic script.
+ """
+ self.deleted_routes.extend(self.unconfig_fib_many_to_one(
+ "10.0.0.10", self.pg0.remote_ip4, 10))
+ for x in self.deleted_routes:
+ self.configured_routes.remove(x)
+
+ fib_dump = self.vapi.ip_fib_dump()
+ self.verify_route_dump(fib_dump, self.configured_routes)
+
+ self.stream_1 = self.create_stream(
+ self.pg1, self.pg0, self.configured_routes, 100)
+ self.stream_2 = self.create_stream(
+ self.pg2, self.pg0, self.configured_routes, 100)
+ self.stream_3 = self.create_stream(
+ self.pg1, self.pg0, self.deleted_routes, 100)
+ self.stream_4 = self.create_stream(
+ self.pg2, self.pg0, self.deleted_routes, 100)
+ self.pg1.add_stream(self.stream_1 + self.stream_3)
+ self.pg2.add_stream(self.stream_2 + self.stream_4)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ pkts = self.pg0.get_capture()
+ self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
+
+ def test_3_add_new_routes(self):
+ """ Add 1k routes
+
+ - re-add 5 routes check with traffic script.
+ - add 100 routes check with traffic script.
+ """
+ tmp = self.config_fib_many_to_one(
+ "10.0.0.10", self.pg0.remote_ip4, 5)
+ self.configured_routes.extend(tmp)
+ for x in tmp:
+ self.deleted_routes.remove(x)
+
+ self.configured_routes.extend(self.config_fib_many_to_one(
+ "10.0.1.0", self.pg0.remote_ip4, 100))
+
+ fib_dump = self.vapi.ip_fib_dump()
+ self.verify_route_dump(fib_dump, self.configured_routes)
+
+ self.stream_1 = self.create_stream(
+ self.pg1, self.pg0, self.configured_routes, 300)
+ self.stream_2 = self.create_stream(
+ self.pg2, self.pg0, self.configured_routes, 300)
+ self.stream_3 = self.create_stream(
+ self.pg1, self.pg0, self.deleted_routes, 100)
+ self.stream_4 = self.create_stream(
+ self.pg2, self.pg0, self.deleted_routes, 100)
+
+ self.pg1.add_stream(self.stream_1 + self.stream_3)
+ self.pg2.add_stream(self.stream_2 + self.stream_4)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ pkts = self.pg0.get_capture()
+ self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
+
+ def test_4_del_routes(self):
+ """ Delete 1.5k routes
+
+ - delete 5 routes check with traffic script.
+ - add 100 routes check with traffic script.
+ """
+ self.deleted_routes.extend(self.unconfig_fib_many_to_one(
+ "10.0.0.0", self.pg0.remote_ip4, 15))
+ self.deleted_routes.extend(self.unconfig_fib_many_to_one(
+ "10.0.0.20", self.pg0.remote_ip4, 85))
+ self.deleted_routes.extend(self.unconfig_fib_many_to_one(
+ "10.0.1.0", self.pg0.remote_ip4, 100))
+ fib_dump = self.vapi.ip_fib_dump()
+ self.verify_not_in_route_dump(fib_dump, self.deleted_routes)
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)