Disable non-working checks in load-balancer test and rename ip->ip4

Change-Id: If62011e29e912bf0c47625b0d3b3624ef6375013
Signed-off-by: Klement Sekera <ksekera@cisco.com>

1 files changed, 165 insertions, 0 deletions

diff --git a/test/test_ip4.py b/test/test_ip4.py
new file mode 100644
index 00000000000..48155a5a025
--- /dev/null
+++ b/test/test_ip4.py
@@ -0,0 +1,165 @@
+#!/usr/bin/env python
+
+import unittest
+import socket
+from logging import *
+
+from framework import VppTestCase, VppTestRunner
+from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
+
+from scapy.packet import Raw
+from scapy.layers.l2 import Ether, Dot1Q, ARP
+from scapy.layers.inet import IP, UDP
+
+
+class TestIPv4(VppTestCase):
+    """ IPv4 Test Case """
+
+    @classmethod
+    def setUpClass(cls):
+        super(TestIPv4, cls).setUpClass()
+
+    def setUp(self):
+        super(TestIPv4, self).setUp()
+
+        # create 3 pg interfaces
+        self.create_pg_interfaces(range(3))
+
+        # create 2 subinterfaces for pg1 and pg2
+        self.sub_interfaces = [
+            VppDot1QSubint(self, self.pg1, 100),
+            VppDot1ADSubint(self, self.pg2, 200, 300, 400)]
+
+        # packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
+        self.flows = dict()
+        self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
+        self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
+        self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
+
+        # packet sizes
+        self.pg_if_packet_sizes = [64, 512, 1518, 9018]
+        self.sub_if_packet_sizes = [64, 512, 1518 + 4, 9018 + 4]
+
+        self.interfaces = list(self.pg_interfaces)
+        self.interfaces.extend(self.sub_interfaces)
+
+        # setup all interfaces
+        for i in self.interfaces:
+            i.admin_up()
+            i.config_ip4()
+            i.resolve_arp()
+
+        # config 2M FIB enries
+        self.config_fib_entries(200)
+
+    def tearDown(self):
+        super(TestIPv4, self).tearDown()
+        if not self.vpp_dead:
+            info(self.vapi.cli("show ip arp"))
+            # info(self.vapi.cli("show ip fib"))  # many entries
+
+    def config_fib_entries(self, count):
+        n_int = len(self.interfaces)
+        percent = 0
+        counter = 0.0
+        dest_addr = socket.inet_pton(socket.AF_INET, "10.0.0.1")
+        dest_addr_len = 32
+        for i in self.interfaces:
+            next_hop_address = i.local_ip4n
+            for j in range(count / n_int):
+                self.vapi.ip_add_del_route(
+                    dest_addr, dest_addr_len, next_hop_address)
+                counter = counter + 1
+                if counter / count * 100 > percent:
+                    info("Configure %d FIB entries .. %d%% done" %
+                         (count, percent))
+                    percent = percent + 1
+
+    def create_stream(self, src_if, packet_sizes):
+        pkts = []
+        for i in range(0, 257):
+            dst_if = self.flows[src_if][i % 2]
+            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_if.remote_ip4) /
+                 UDP(sport=1234, dport=1234) /
+                 Raw(payload))
+            info.data = p.copy()
+            if isinstance(src_if, VppSubInterface):
+                p = src_if.add_dot1_layer(p)
+            size = packet_sizes[(i // 2) % len(packet_sizes)]
+            self.extend_packet(p, size)
+            pkts.append(p)
+        return pkts
+
+    def verify_capture(self, dst_if, capture):
+        info("Verifying capture on interface %s" % dst_if.name)
+        last_info = dict()
+        for i in self.interfaces:
+            last_info[i.sw_if_index] = None
+        is_sub_if = False
+        dst_sw_if_index = dst_if.sw_if_index
+        if hasattr(dst_if, 'parent'):
+            is_sub_if = True
+        for packet in capture:
+            if is_sub_if:
+                # Check VLAN tags and Ethernet header
+                packet = dst_if.remove_dot1_layer(packet)
+            self.assertTrue(Dot1Q not in packet)
+            try:
+                ip = packet[IP]
+                udp = packet[UDP]
+                payload_info = self.payload_to_info(str(packet[Raw]))
+                packet_index = payload_info.index
+                self.assertEqual(payload_info.dst, dst_sw_if_index)
+                debug("Got packet on port %s: src=%u (id=%u)" %
+                      (dst_if.name, payload_info.src, packet_index))
+                next_info = self.get_next_packet_info_for_interface2(
+                    payload_info.src, dst_sw_if_index,
+                    last_info[payload_info.src])
+                last_info[payload_info.src] = next_info
+                self.assertTrue(next_info is not None)
+                self.assertEqual(packet_index, next_info.index)
+                saved_packet = next_info.data
+                # Check standard fields
+                self.assertEqual(ip.src, saved_packet[IP].src)
+                self.assertEqual(ip.dst, saved_packet[IP].dst)
+                self.assertEqual(udp.sport, saved_packet[UDP].sport)
+                self.assertEqual(udp.dport, saved_packet[UDP].dport)
+            except:
+                error("Unexpected or invalid packet:")
+                error(packet.show())
+                raise
+        for i in self.interfaces:
+            remaining_packet = self.get_next_packet_info_for_interface2(
+                i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
+            self.assertTrue(
+                remaining_packet is None,
+                "Interface %s: Packet expected from interface %s didn't arrive" %
+                (dst_if.name, i.name))
+
+    def test_fib(self):
+        """ IPv4 FIB test """
+
+        pkts = self.create_stream(self.pg0, self.pg_if_packet_sizes)
+        self.pg0.add_stream(pkts)
+
+        for i in self.sub_interfaces:
+            pkts = self.create_stream(i, self.sub_if_packet_sizes)
+            i.parent.add_stream(pkts)
+
+        self.pg_enable_capture(self.pg_interfaces)
+        self.pg_start()
+
+        pkts = self.pg0.get_capture()
+        self.verify_capture(self.pg0, pkts)
+
+        for i in self.sub_interfaces:
+            pkts = i.parent.get_capture()
+            self.verify_capture(i, pkts)
+
+
+if __name__ == '__main__':
+    unittest.main(testRunner=VppTestRunner)