1 files changed, 84 insertions, 0 deletions
diff --git a/tests/mininet/l3/icmp/test_icmp.py b/tests/mininet/l3/icmp/test_icmp.py
new file mode 100644
index 00000000..090f83e5
--- /dev/null
+++ b/tests/mininet/l3/icmp/test_icmp.py
@@ -0,0 +1,84 @@
+# Copyright (C) 2012 Nippon Telegraph and Telephone Corporation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+import struct
+
+from ryu.base import app_manager
+from ryu.controller import ofp_event
+from ryu.controller import dpset
+from ryu.controller.handler import MAIN_DISPATCHER
+from ryu.controller.handler import set_ev_cls
+from ryu.ofproto import ofproto_v1_2
+from ryu.lib.mac import haddr_to_str
+
+
+LOG = logging.getLogger(__name__)
+
+
+class RunTestMininet(app_manager.RyuApp):
+
+    _CONTEXTS = {'dpset': dpset.DPSet}
+    OFP_VERSIONS = [ofproto_v1_2.OFP_VERSION]
+
+    def __init__(self, *args, **kwargs):
+        super(RunTestMininet, self).__init__(*args, **kwargs)
+
+    def _add_flow(self, dp, match, actions):
+        inst = [dp.ofproto_parser.OFPInstructionActions(
+            dp.ofproto.OFPIT_APPLY_ACTIONS, actions)]
+
+        mod = dp.ofproto_parser.OFPFlowMod(
+            dp, cookie=0, cookie_mask=0, table_id=0,
+            command=dp.ofproto.OFPFC_ADD, idle_timeout=0, hard_timeout=0,
+            priority=0xff, buffer_id=0xffffffff,
+            out_port=dp.ofproto.OFPP_ANY, out_group=dp.ofproto.OFPG_ANY,
+            flags=0, match=match, instructions=inst)
+
+        dp.send_msg(mod)
+
+    def _define_flow(self, dp):
+        in_port = 1
+        out_port = 2
+
+        # port:1 -> port:2
+        match = dp.ofproto_parser.OFPMatch()
+        match.set_in_port(in_port)
+        actions = [dp.ofproto_parser.OFPActionOutput(out_port, 0)]
+        self._add_flow(dp, match, actions)
+
+        # port:1 -> port:2
+        match = dp.ofproto_parser.OFPMatch()
+        match.set_in_port(out_port)
+        actions = [dp.ofproto_parser.OFPActionOutput(in_port, 0)]
+        self._add_flow(dp, match, actions)
+
+    @set_ev_cls(dpset.EventDP, dpset.DPSET_EV_DISPATCHER)
+    def handler_datapath(self, ev):
+        if ev.enter:
+            self._define_flow(ev.dp)
+
+    @set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
+    def packet_in_handler(self, ev):
+        msg = ev.msg
+        dst, src, eth_type = struct.unpack_from('!6s6sH', buffer(msg.data), 0)
+        in_port = msg.match.fields[0].value
+
+        LOG.info("----------------------------------------")
+        LOG.info("* PacketIn")
+        LOG.info("in_port=%d, eth_type: %s", in_port, hex(eth_type))
+        LOG.info("packet reason=%d buffer_id=%d", msg.reason, msg.buffer_id)
+        LOG.info("packet in datapath_id=%s src=%s dst=%s",
+                 msg.datapath.id, haddr_to_str(src), haddr_to_str(dst))