X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_reassembly.py;h=96e00c6bb608ae521f57ad1a3e13fde6cd8178e0;hb=4ee633e84af18e9237554df2015a332749dc358a;hp=1fa05a4efb614c2d7dd18b15acae1a7d1acc2833;hpb=ae8098350cb7b96f7495fa4d4180238064256e14;p=vpp.git

diff --git a/test/test_reassembly.py b/test/test_reassembly.py
index 1fa05a4efb6..96e00c6bb60 100644
--- a/test/test_reassembly.py
+++ b/test/test_reassembly.py
@@ -180,6 +180,7 @@ class TestIPv4Reassembly(VppTestCase):
 
     def test_5737(self):
         """ fragment length + ip header size > 65535 """
+        self.vapi.cli("clear errors")
         raw = ('E\x00\x00\x88,\xf8\x1f\xfe@\x01\x98\x00\xc0\xa8\n-\xc0\xa8\n'
                '\x01\x08\x00\xf0J\xed\xcb\xf1\xf5Test-group: IPv4.IPv4.ipv4-'
                'message.Ethernet-Payload.IPv4-Packet.IPv4-Header.Fragment-Of'
@@ -200,8 +201,11 @@ class TestIPv4Reassembly(VppTestCase):
         self.pg_start()
 
         self.dst_if.get_capture(1)
-        self.assert_packet_counter_equal(
-            "/err/ip4-reassembly-feature/malformed packets", 1)
+        self.assert_packet_counter_equal("ip4-reassembly-feature", 1)
+        # TODO remove above, uncomment below once clearing of counters
+        # is supported
+        # self.assert_packet_counter_equal(
+        #     "/err/ip4-reassembly-feature/malformed packets", 1)
 
     def test_44924(self):
         """ compress tiny fragments """
@@ -234,6 +238,42 @@ class TestIPv4Reassembly(VppTestCase):
 
         self.dst_if.get_capture(1)
 
+    def test_frag_1(self):
+        """ fragment of size 1 """
+        self.vapi.cli("clear errors")
+        malformed_packets = [(Ether(dst=self.src_if.local_mac,
+                                    src=self.src_if.remote_mac) /
+                              IP(id=7, len=21, flags="MF", frag=0, ttl=64,
+                                 src=self.src_if.remote_ip4,
+                                 dst=self.dst_if.remote_ip4) /
+                              ICMP(type="echo-request")),
+                             (Ether(dst=self.src_if.local_mac,
+                                    src=self.src_if.remote_mac) /
+                              IP(id=7, len=21, frag=1, ttl=64,
+                                 src=self.src_if.remote_ip4,
+                                 dst=self.dst_if.remote_ip4) /
+                              Raw(load='\x08')),
+                             ]
+
+        p = (Ether(dst=self.src_if.local_mac, src=self.src_if.remote_mac) /
+             IP(id=1000, src=self.src_if.remote_ip4,
+                dst=self.dst_if.remote_ip4) /
+             UDP(sport=1234, dport=5678) /
+             Raw("X" * 1000))
+        valid_fragments = fragment_rfc791(p, 400)
+
+        self.pg_enable_capture()
+        self.src_if.add_stream(malformed_packets + valid_fragments)
+        self.pg_start()
+
+        self.dst_if.get_capture(1)
+
+        self.assert_packet_counter_equal("ip4-reassembly-feature", 1)
+        # TODO remove above, uncomment below once clearing of counters
+        # is supported
+        # self.assert_packet_counter_equal(
+        #     "/err/ip4-reassembly-feature/malformed packets", 1)
+
     @unittest.skipIf(is_skip_aarch64_set() and is_platform_aarch64(),
                      "test doesn't work on aarch64")
     def test_random(self):