X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_neighbor.py;h=f01f536770392d121ad2fd00d10aa002c9f3aaf9;hb=2646c80db8d3d1a3cd7555328d5a0038798f861e;hp=7798fdd5e7c51c49f8b4b80ed7754f37266ee347;hpb=c819fc612f9a79eaba2981dc2e8f7c31552db5ea;p=vpp.git

diff --git a/test/test_neighbor.py b/test/test_neighbor.py
index 7798fdd5e7c..f01f5367703 100644
--- a/test/test_neighbor.py
+++ b/test/test_neighbor.py
@@ -296,6 +296,10 @@ class ARPTestCase(VppTestCase):
         #
         self.pg2.set_unnumbered(self.pg1.sw_if_index)
 
+        unnum = self.vapi.ip_unnumbered_dump()
+        self.assertEqual(unnum[0].ip_sw_if_index, self.pg1.sw_if_index)
+        self.assertEqual(unnum[0].sw_if_index, self.pg2.sw_if_index)
+
         #
         # We should respond to ARP requests for the unnumbered to address
         # once an attached route to the source is known
@@ -1214,6 +1218,135 @@ class ARPTestCase(VppTestCase):
         self.vapi.sw_interface_set_mac_address(self.pg2.sw_if_index,
                                                mac_string)
 
+    def test_garp(self):
+        """ GARP """
+
+        #
+        # Generate some hosts on the LAN
+        #
+        self.pg1.generate_remote_hosts(4)
+
+        #
+        # And an ARP entry
+        #
+        arp = VppNeighbor(self,
+                          self.pg1.sw_if_index,
+                          self.pg1.remote_hosts[1].mac,
+                          self.pg1.remote_hosts[1].ip4)
+        arp.add_vpp_config()
+
+        self.assertTrue(find_nbr(self,
+                                 self.pg1.sw_if_index,
+                                 self.pg1.remote_hosts[1].ip4,
+                                 mac=self.pg1.remote_hosts[1].mac))
+
+        #
+        # Send a GARP (request) to swap the host 1's address to that of host 2
+        #
+        p1 = (Ether(dst="ff:ff:ff:ff:ff:ff",
+                    src=self.pg1.remote_hosts[2].mac) /
+              ARP(op="who-has",
+                  hwdst=self.pg1.local_mac,
+                  hwsrc=self.pg1.remote_hosts[2].mac,
+                  pdst=self.pg1.remote_hosts[1].ip4,
+                  psrc=self.pg1.remote_hosts[1].ip4))
+
+        self.pg1.add_stream(p1)
+        self.pg_enable_capture(self.pg_interfaces)
+        self.pg_start()
+
+        self.assertTrue(find_nbr(self,
+                                 self.pg1.sw_if_index,
+                                 self.pg1.remote_hosts[1].ip4,
+                                 mac=self.pg1.remote_hosts[2].mac))
+
+        #
+        # Send a GARP (reply) to swap the host 1's address to that of host 3
+        #
+        p1 = (Ether(dst="ff:ff:ff:ff:ff:ff",
+                    src=self.pg1.remote_hosts[3].mac) /
+              ARP(op="is-at",
+                  hwdst=self.pg1.local_mac,
+                  hwsrc=self.pg1.remote_hosts[3].mac,
+                  pdst=self.pg1.remote_hosts[1].ip4,
+                  psrc=self.pg1.remote_hosts[1].ip4))
+
+        self.pg1.add_stream(p1)
+        self.pg_enable_capture(self.pg_interfaces)
+        self.pg_start()
+
+        self.assertTrue(find_nbr(self,
+                                 self.pg1.sw_if_index,
+                                 self.pg1.remote_hosts[1].ip4,
+                                 mac=self.pg1.remote_hosts[3].mac))
+
+        #
+        # GARPs (requets nor replies) for host we don't know yet
+        # don't result in new neighbour entries
+        #
+        p1 = (Ether(dst="ff:ff:ff:ff:ff:ff",
+                    src=self.pg1.remote_hosts[3].mac) /
+              ARP(op="who-has",
+                  hwdst=self.pg1.local_mac,
+                  hwsrc=self.pg1.remote_hosts[3].mac,
+                  pdst=self.pg1.remote_hosts[2].ip4,
+                  psrc=self.pg1.remote_hosts[2].ip4))
+
+        self.pg1.add_stream(p1)
+        self.pg_enable_capture(self.pg_interfaces)
+        self.pg_start()
+
+        self.assertFalse(find_nbr(self,
+                                  self.pg1.sw_if_index,
+                                  self.pg1.remote_hosts[2].ip4))
+
+        p1 = (Ether(dst="ff:ff:ff:ff:ff:ff",
+                    src=self.pg1.remote_hosts[3].mac) /
+              ARP(op="is-at",
+                  hwdst=self.pg1.local_mac,
+                  hwsrc=self.pg1.remote_hosts[3].mac,
+                  pdst=self.pg1.remote_hosts[2].ip4,
+                  psrc=self.pg1.remote_hosts[2].ip4))
+
+        self.pg1.add_stream(p1)
+        self.pg_enable_capture(self.pg_interfaces)
+        self.pg_start()
+
+        self.assertFalse(find_nbr(self,
+                                  self.pg1.sw_if_index,
+                                  self.pg1.remote_hosts[2].ip4))
+
+    def test_arp_incomplete(self):
+
+        #
+        # ensure that we throttle the ARP requests
+        #
+        self.pg0.generate_remote_hosts(2)
+
+        ip_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
+                                 [VppRoutePath(self.pg0.remote_hosts[1].ip4,
+                                               self.pg0.sw_if_index,
+                                               labels=[55])])
+        ip_10_0_0_1.add_vpp_config()
+
+        p1 = (Ether(dst=self.pg1.local_mac,
+                    src=self.pg1.remote_mac) /
+              IP(src=self.pg1.remote_ip4,
+                 dst="10.0.0.1") /
+              UDP(sport=1234, dport=1234) /
+              Raw())
+
+        self.pg1.add_stream(p1 * 257)
+        self.pg_enable_capture(self.pg_interfaces)
+        self.pg_start()
+        rx = self.pg0._get_capture(1)
+
+        #
+        # how many we get is going to be dependent on the time for packet
+        # processing but it should be small
+        #
+        self.assertTrue(len(rx) < 64)
+
 
 if __name__ == '__main__':
     unittest.main(testRunner=VppTestRunner)