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#!/usr/bin/env python

import unittest

from framework import VppTestCase, VppTestRunner, running_extended_tests
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath


class TestQUIC(VppTestCase):
    """ QUIC Test Case """

    @classmethod
    def setUpClass(cls):
        super(TestQUIC, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(TestQUIC, cls).tearDownClass()

    def setUp(self):
        super(TestQUIC, self).setUp()
        self.vapi.session_enable_disable(is_enabled=1)
        self.create_loopback_interfaces(2)

        table_id = 1

        for i in self.lo_interfaces:
            i.admin_up()

            if table_id != 0:
                tbl = VppIpTable(self, table_id)
                tbl.add_vpp_config()

            i.set_table_ip4(table_id)
            i.config_ip4()
            table_id += 1

        # Configure namespaces
        self.vapi.app_namespace_add_del(namespace_id=b"1",
                                        sw_if_index=self.loop0.sw_if_index)
        self.vapi.app_namespace_add_del(namespace_id=b"2",
                                        sw_if_index=self.loop1.sw_if_index)

    def tearDown(self):
        for i in self.lo_interfaces:
            i.unconfig_ip4()
            i.set_table_ip4(0)
            i.admin_down()
        self.vapi.session_enable_disable(is_enabled=0)
        super(TestQUIC, self).tearDown()

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_quic_transfer(self):
        """ QUIC echo client/server transfer """

        # Add inter-table routes
        ip_t01 = VppIpRoute(self, self.loop1.local_ip4, 32,
                            [VppRoutePath("0.0.0.0",
                                          0xffffffff,
                                          nh_table_id=2)], table_id=1)
        ip_t10 = VppIpRoute(self, self.loop0.local_ip4, 32,
                            [VppRoutePath("0.0.0.0",
                                          0xffffffff,
                                          nh_table_id=1)], table_id=2)
        ip_t01.add_vpp_config()
        ip_t10.add_vpp_config()
        self.logger.debug(self.vapi.cli("show ip fib"))

        # Start builtin server and client
        uri = "quic://%s/1234" % self.loop0.local_ip4
        error = self.vapi.cli("test echo server appns 1 fifo-size 4 uri %s" %
                              uri)
        if error:
            self.logger.critical(error)
            self.assertNotIn("failed", error)
        error = self.vapi.cli("test echo client bytes 1024 appns 2 " +
                              "fifo-size 4 test-bytes no-output " +
                              "uri %s" % uri)
        self.logger.critical(error)
        if error:
            self.logger.critical(error)
            self.assertNotIn("failed", error)

        # Delete inter-table routes
        ip_t01.remove_vpp_config()
        ip_t10.remove_vpp_config()

if __name__ == '__main__':
    unittest.main(testRunner=VppTestRunner)
flags='DF') current_mtu = self.get_mtu(self.pg1.sw_if_index) p_payload = UDP(sport=1234, dport=1234) / self.payload( current_mtu - 20 - 8) p4 = p_ether / p_ip4 / p_payload p4_reply = p_ip4 / p_payload p4_reply.ttl -= 1 rx = self.send_and_expect(self.pg0, p4*11, self.pg1) for p in rx: self.validate(p[1], p4_reply) # MTU self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [576, 0, 0, 0]) self.assertEqual(576, self.get_mtu(self.pg1.sw_if_index)) # Should fail. Too large MTU p_icmp4 = ICMP(type='dest-unreach', code='fragmentation-needed', nexthopmtu=576, chksum=0x2dbb) icmp4_reply = (IP(src=self.pg0.local_ip4, dst=self.pg0.remote_ip4, ttl=254, len=576, id=0) / p_icmp4 / p_ip4 / p_payload) n = icmp4_reply.__class__(icmp4_reply) s = bytes(icmp4_reply) icmp4_reply = s[0:576] rx = self.send_and_expect(self.pg0, p4*11, self.pg0) for p in rx: # p.show2() # n.show2() self.validate_bytes(bytes(p[1]), icmp4_reply) # Now with DF off. Expect fragments. # First go with 1500 byte packets. p_payload = UDP(sport=1234, dport=1234) / self.payload( 1500 - 20 - 8) p4 = p_ether / p_ip4 / p_payload p4.flags = 0 p4_reply = p_ip4 / p_payload p4_reply.ttl = p_ip4.ttl - 1 p4_reply.flags = 0 p4_reply.id = 256 self.pg_enable_capture() self.pg0.add_stream(p4*1) self.pg_start() rx = self.pg1.get_capture(3) reass_pkt = reassemble4(rx) self.validate(reass_pkt, p4_reply) ''' # Now what happens with a 9K frame p_payload = UDP(sport=1234, dport=1234) / self.payload( current_mtu - 20 - 8) p4 = p_ether / p_ip4 / p_payload p4.flags = 0 p4_reply = p_ip4 / p_payload p4_reply.ttl = 62 # check this p4_reply.flags = 0 p4_reply.id = 512 self.pg_enable_capture() self.pg0.add_stream(p4*1) self.pg_start() rx = self.pg1.get_capture(16) reass_pkt = reassemble4(rx) reass_pkt.show2() p4_reply.show2() self.validate(reass_pkt, p4_reply) ''' # Reset MTU self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [current_mtu, 0, 0, 0]) def test_ip6_mtu(self): """ IP6 MTU test """ current_mtu = self.get_mtu(self.pg1.sw_if_index) p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) p_ip6 = IPv6(src=self.pg0.remote_ip6, dst=self.pg1.remote_ip6) p_payload = UDP(sport=1234, dport=1234) / self.payload( current_mtu - 40 - 8) p6 = p_ether / p_ip6 / p_payload p6_reply = p_ip6 / p_payload p6_reply.hlim -= 1 rx = self.send_and_expect(self.pg0, p6*9, self.pg1) for p in rx: self.validate(p[1], p6_reply) # MTU (only checked on encap) self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1280, 0, 0, 0]) self.assertEqual(1280, self.get_mtu(self.pg1.sw_if_index)) # Should fail. Too large MTU p_icmp6 = ICMPv6PacketTooBig(mtu=1280, cksum=0x4c7a) icmp6_reply = (IPv6(src=self.pg0.local_ip6, dst=self.pg0.remote_ip6, hlim=255, plen=1240) / p_icmp6 / p_ip6 / p_payload) icmp6_reply[2].hlim -= 1 n = icmp6_reply.__class__(icmp6_reply) s = bytes(icmp6_reply) icmp6_reply_str = s[0:1280] rx = self.send_and_expect(self.pg0, p6*9, self.pg0) for p in rx: self.validate_bytes(bytes(p[1]), icmp6_reply_str) # Reset MTU self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [current_mtu, 0, 0, 0]) if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)