Python VppIpRoute.modify方法代码示例

# 需要导入模块: from vpp_ip_route import VppIpRoute [as 别名]
# 或者: from vpp_ip_route.VppIpRoute import modify [as 别名]
    def test_gre_loop(self):
        """ GRE tunnel loop Tests """

        #
        # Create an L3 GRE tunnel.
        #  - set it admin up
        #  - assign an IP Addres
        #
        gre_if = VppGreInterface(self,
                                 self.pg0.local_ip4,
                                 "1.1.1.2")
        gre_if.add_vpp_config()
        gre_if.admin_up()
        gre_if.config_ip4()

        #
        # add a route to the tunnel's destination that points
        # through the tunnel, hence forming a loop in the forwarding
        # graph
        #
        route_dst = VppIpRoute(self, "1.1.1.2", 32,
                               [VppRoutePath("0.0.0.0",
                                             gre_if.sw_if_index)])
        route_dst.add_vpp_config()

        #
        # packets to the tunnels destination should be dropped
        #
        tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "1.1.1.2")
        self.send_and_assert_no_replies(self.pg2, tx)

        self.logger.info(self.vapi.ppcli("sh adj 7"))

        #
        # break the loop
        #
        route_dst.modify([VppRoutePath(self.pg1.remote_ip4,
                                       self.pg1.sw_if_index)])
        route_dst.add_vpp_config()

        rx = self.send_and_expect(self.pg0, tx, self.pg1)

        #
        # a good route throught the tunnel to check it restacked
        #
        route_via_tun_2 = VppIpRoute(self, "2.2.2.2", 32,
                                     [VppRoutePath("0.0.0.0",
                                                   gre_if.sw_if_index)])
        route_via_tun_2.add_vpp_config()

        tx = self.create_stream_ip4(self.pg0, "2.2.2.3", "2.2.2.2")
        rx = self.send_and_expect(self.pg0, tx, self.pg1)
        self.verify_tunneled_4o4(self.pg1, rx, tx,
                                 self.pg0.local_ip4, "1.1.1.2")

        #
        # cleanup
        #
        route_via_tun_2.remove_vpp_config()
        gre_if.remove_vpp_config()

# 需要导入模块: from vpp_ip_route import VppIpRoute [as 别名]
# 或者: from vpp_ip_route.VppIpRoute import modify [as 别名]

#.........这里部分代码省略.........
        v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
              IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) /
              UDP(sport=20000, dport=10000) /
              Raw('\xa5' * 100))
        rx = self.send_and_expect(self.pg0, v4*1, self.pg0)
        v4_reply = v4[1]
        v4_reply.ttl -= 1
        for p in rx:
            self.validate(p[1], v4_reply)

        #
        # Fire in a v4 packet that will be encapped to the BR
        #
        v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
              IP(src=self.pg0.remote_ip4, dst='192.168.1.1') /
              UDP(sport=20000, dport=10000) /
              Raw('\xa5' * 100))

        self.send_and_assert_encapped(v4, "3000::1", "2001::c0a8:0:0")

        # Enable MAP on interface.
        self.vapi.map_if_enable_disable(is_enable=1,
                                        sw_if_index=self.pg1.sw_if_index,
                                        is_translation=0)

        # Ensure MAP doesn't steal all packets
        v6 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
              IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) /
              UDP(sport=20000, dport=10000) /
              Raw('\xa5' * 100))
        rx = self.send_and_expect(self.pg1, v6*1, self.pg1)
        v6_reply = v6[1]
        v6_reply.hlim -= 1
        for p in rx:
            self.validate(p[1], v6_reply)

        #
        # Fire in a V6 encapped packet.
        #  expect a decapped packet on the inside ip4 link
        #
        p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
             IPv6(dst='3000::1', src="2001::1") /
             IP(dst=self.pg0.remote_ip4, src='192.168.1.1') /
             UDP(sport=20000, dport=10000) /
             Raw('\xa5' * 100))

        self.pg1.add_stream(p)

        self.pg_enable_capture(self.pg_interfaces)
        self.pg_start()

        rx = self.pg0.get_capture(1)
        rx = rx[0]

        self.assertFalse(rx.haslayer(IPv6))
        self.assertEqual(rx[IP].src, p[IP].src)
        self.assertEqual(rx[IP].dst, p[IP].dst)

        #
        # Pre-resolve. No API for this!!
        #
        self.vapi.ppcli("map params pre-resolve ip6-nh 4001::1")

        self.send_and_assert_no_replies(self.pg0, v4,
                                        "resovled via default route")

        #
        # Add a route to 4001::1. Expect the encapped traffic to be
        # sent via that routes next-hop
        #
        pre_res_route = VppIpRoute(
            self, "4001::1", 128,
            [VppRoutePath(self.pg1.remote_hosts[2].ip6,
                          self.pg1.sw_if_index,
                          proto=DpoProto.DPO_PROTO_IP6)],
            is_ip6=1)
        pre_res_route.add_vpp_config()

        self.send_and_assert_encapped(v4, "3000::1",
                                      "2001::c0a8:0:0",
                                      dmac=self.pg1.remote_hosts[2].mac)

        #
        # change the route to the pre-solved next-hop
        #
        pre_res_route.modify([VppRoutePath(self.pg1.remote_hosts[3].ip6,
                                           self.pg1.sw_if_index,
                                           proto=DpoProto.DPO_PROTO_IP6)])
        pre_res_route.add_vpp_config()

        self.send_and_assert_encapped(v4, "3000::1",
                                      "2001::c0a8:0:0",
                                      dmac=self.pg1.remote_hosts[3].mac)

        #
        # cleanup. The test infra's object registry will ensure
        # the route is really gone and thus that the unresolve worked.
        #
        pre_res_route.remove_vpp_config()
        self.vapi.ppcli("map params pre-resolve del ip6-nh 4001::1")