| """ |
| Basic protocol and dataplane test cases |
| |
| It is recommended that these definitions be kept in their own |
| namespace as different groups of tests will likely define |
| similar identifiers. |
| |
| Current Assumptions: |
| |
| The switch is actively attempting to contact the controller at the address |
| indicated in oftest.config. |
| |
| """ |
| |
| import time |
| import sys |
| import logging |
| |
| import unittest |
| import random |
| |
| from oftest import config |
| import oftest.controller as controller |
| import oftest.cstruct as ofp |
| import oftest.message as message |
| import oftest.dataplane as dataplane |
| import oftest.action as action |
| import oftest.base_tests as base_tests |
| |
| import oftest.illegal_message as illegal_message |
| |
| from oftest.testutils import * |
| |
| TEST_VID_DEFAULT = 2 |
| |
| class Echo(base_tests.SimpleProtocol): |
| """ |
| Test echo response with no data |
| """ |
| def runTest(self): |
| request = message.echo_request() |
| response, pkt = self.controller.transact(request) |
| self.assertTrue(response is not None, |
| "Did not get echo reply") |
| self.assertEqual(response.header.type, ofp.OFPT_ECHO_REPLY, |
| 'response is not echo_reply') |
| self.assertEqual(request.header.xid, response.header.xid, |
| 'response xid != request xid') |
| self.assertEqual(len(response.data), 0, 'response data non-empty') |
| |
| class EchoWithData(base_tests.SimpleProtocol): |
| """ |
| Test echo response with short string data |
| """ |
| def runTest(self): |
| request = message.echo_request(data='OpenFlow Will Rule The World') |
| response, pkt = self.controller.transact(request) |
| self.assertTrue(response is not None, |
| "Did not get echo reply (with data)") |
| self.assertEqual(response.header.type, ofp.OFPT_ECHO_REPLY, |
| 'response is not echo_reply') |
| self.assertEqual(request.header.xid, response.header.xid, |
| 'response xid != request xid') |
| self.assertEqual(request.data, response.data, |
| 'response data does not match request') |
| |
| class PacketIn(base_tests.SimpleDataPlane): |
| """ |
| Test packet in function |
| |
| Send a packet to each dataplane port and verify that a packet |
| in message is received from the controller for each |
| """ |
| def runTest(self): |
| # Construct packet to send to dataplane |
| # Send packet to dataplane, once to each port |
| # Poll controller with expect message type packet in |
| |
| delete_all_flows(self.controller) |
| do_barrier(self.controller) |
| |
| vid = test_param_get('vid', default=TEST_VID_DEFAULT) |
| |
| for of_port in config["port_map"].keys(): |
| for pkt, pt in [ |
| (simple_tcp_packet(), "simple TCP packet"), |
| (simple_tcp_packet(dl_vlan_enable=True,dl_vlan=vid,pktlen=108), |
| "simple tagged TCP packet"), |
| (simple_eth_packet(), "simple Ethernet packet"), |
| (simple_eth_packet(pktlen=40), "tiny Ethernet packet")]: |
| |
| logging.info("PKT IN test with %s, port %s" % (pt, of_port)) |
| self.dataplane.send(of_port, str(pkt)) |
| #@todo Check for unexpected messages? |
| count = 0 |
| while True: |
| (response, raw) = self.controller.poll(ofp.OFPT_PACKET_IN) |
| if not response: # Timeout |
| break |
| if dataplane.match_exp_pkt(pkt, response.data): # Got match |
| break |
| if not config["relax"]: # Only one attempt to match |
| break |
| count += 1 |
| if count > 10: # Too many tries |
| break |
| |
| self.assertTrue(response is not None, |
| 'Packet in message not received on port ' + |
| str(of_port)) |
| if not dataplane.match_exp_pkt(pkt, response.data): |
| logging.debug("Sent %s" % format_packet(pkt)) |
| logging.debug("Resp %s" % format_packet(response.data)) |
| self.assertTrue(False, |
| 'Response packet does not match send packet' + |
| ' for port ' + str(of_port)) |
| |
| class PacketInDefaultDrop(base_tests.SimpleDataPlane): |
| """ |
| Test packet in function |
| |
| Send a packet to each dataplane port and verify that a packet |
| in message is received from the controller for each |
| """ |
| |
| priority = -1 |
| |
| def runTest(self): |
| delete_all_flows(self.controller) |
| do_barrier(self.controller) |
| |
| for of_port in config["port_map"].keys(): |
| pkt = simple_tcp_packet() |
| self.dataplane.send(of_port, str(pkt)) |
| count = 0 |
| while True: |
| (response, raw) = self.controller.poll(ofp.OFPT_PACKET_IN) |
| if not response: # Timeout |
| break |
| if dataplane.match_exp_pkt(pkt, response.data): # Got match |
| break |
| if not config["relax"]: # Only one attempt to match |
| break |
| count += 1 |
| if count > 10: # Too many tries |
| break |
| |
| self.assertTrue(response is None, |
| 'Packet in message received on port ' + |
| str(of_port)) |
| |
| class PacketInBroadcastCheck(base_tests.SimpleDataPlane): |
| """ |
| Check if bcast pkts leak when no flows are present |
| |
| Clear the flow table |
| Send in a broadcast pkt |
| Look for the packet on other dataplane ports. |
| """ |
| |
| priority = -1 |
| |
| def runTest(self): |
| # Need at least two ports |
| self.assertTrue(len(config["port_map"]) > 1, "Too few ports for test") |
| |
| delete_all_flows(self.controller) |
| do_barrier(self.controller) |
| |
| of_ports = config["port_map"].keys() |
| d_port = of_ports[0] |
| pkt = simple_eth_packet(dl_dst='ff:ff:ff:ff:ff:ff') |
| |
| logging.info("BCast Leak Test, send to port %s" % d_port) |
| self.dataplane.send(d_port, str(pkt)) |
| |
| (of_port, pkt_in, pkt_time) = self.dataplane.poll(exp_pkt=pkt) |
| self.assertTrue(pkt_in is None, |
| 'BCast packet received on port ' + str(of_port)) |
| |
| class PacketOut(base_tests.SimpleDataPlane): |
| """ |
| Test packet out function |
| |
| Send packet out message to controller for each dataplane port and |
| verify the packet appears on the appropriate dataplane port |
| """ |
| def runTest(self): |
| # Construct packet to send to dataplane |
| # Send packet to dataplane |
| # Poll controller with expect message type packet in |
| |
| delete_all_flows(self.controller) |
| |
| # These will get put into function |
| of_ports = config["port_map"].keys() |
| of_ports.sort() |
| for dp_port in of_ports: |
| for outpkt, opt in [ |
| (simple_tcp_packet(), "simple TCP packet"), |
| (simple_eth_packet(), "simple Ethernet packet"), |
| (simple_eth_packet(pktlen=40), "tiny Ethernet packet")]: |
| |
| logging.info("PKT OUT test with %s, port %s" % (opt, dp_port)) |
| msg = message.packet_out(in_port=ofp.OFPP_NONE, |
| data=str(outpkt)) |
| act = action.action_output(port=dp_port) |
| msg.actions.add(act) |
| |
| logging.info("PacketOut to: " + str(dp_port)) |
| self.controller.message_send(msg) |
| |
| exp_pkt_arg = None |
| exp_port = None |
| if config["relax"]: |
| exp_pkt_arg = outpkt |
| exp_port = dp_port |
| (of_port, pkt, pkt_time) = self.dataplane.poll(port_number=exp_port, |
| exp_pkt=exp_pkt_arg) |
| |
| self.assertTrue(pkt is not None, 'Packet not received') |
| logging.info("PacketOut: got pkt from " + str(of_port)) |
| if of_port is not None: |
| self.assertEqual(of_port, dp_port, "Unexpected receive port") |
| if not dataplane.match_exp_pkt(outpkt, pkt): |
| logging.debug("Sent %s" % format_packet(outpkt)) |
| logging.debug("Resp %s" % format_packet( |
| str(pkt)[:len(str(outpkt))])) |
| self.assertEqual(str(outpkt), str(pkt)[:len(str(outpkt))], |
| 'Response packet does not match send packet') |
| |
| class PacketOutMC(base_tests.SimpleDataPlane): |
| """ |
| Test packet out to multiple output ports |
| |
| Send packet out message to controller for 1 to N dataplane ports and |
| verify the packet appears on the appropriate ports |
| """ |
| def runTest(self): |
| # Construct packet to send to dataplane |
| # Send packet to dataplane |
| # Poll controller with expect message type packet in |
| |
| delete_all_flows(self.controller) |
| |
| # These will get put into function |
| of_ports = config["port_map"].keys() |
| random.shuffle(of_ports) |
| for num_ports in range(1,len(of_ports)+1): |
| for outpkt, opt in [ |
| (simple_tcp_packet(), "simple TCP packet"), |
| (simple_eth_packet(), "simple Ethernet packet"), |
| (simple_eth_packet(pktlen=40), "tiny Ethernet packet")]: |
| |
| dp_ports = of_ports[0:num_ports] |
| logging.info("PKT OUT test with " + opt + |
| ", ports " + str(dp_ports)) |
| msg = message.packet_out(in_port=ofp.OFPP_NONE, |
| data=str(outpkt)) |
| for i in range(0,num_ports): |
| act = action.action_output(port=dp_ports[i]) |
| msg.actions.add(act) |
| |
| logging.info("PacketOut to: " + str(dp_ports)) |
| self.controller.message_send(msg) |
| |
| receive_pkt_check(self.dataplane, outpkt, dp_ports, |
| set(of_ports).difference(dp_ports), |
| self) |
| |
| class FlowStatsGet(base_tests.SimpleProtocol): |
| """ |
| Get stats |
| |
| Simply verify stats get transaction |
| """ |
| |
| priority = -1 |
| |
| def runTest(self): |
| logging.info("Running StatsGet") |
| logging.info("Inserting trial flow") |
| request = flow_mod_gen(config["port_map"], True) |
| self.controller.message_send(request) |
| |
| logging.info("Sending flow request") |
| request = message.flow_stats_request(out_port=ofp.OFPP_NONE, |
| table_id=0xff) |
| request.match.wildcards = 0 # ofp.OFPFW_ALL |
| response, pkt = self.controller.transact(request) |
| self.assertTrue(response is not None, |
| "Did not get response for flow stats") |
| logging.debug(response.show()) |
| |
| class TableStatsGet(base_tests.SimpleProtocol): |
| """ |
| Get table stats |
| |
| Simply verify table stats get transaction |
| """ |
| def runTest(self): |
| logging.info("Running TableStatsGet") |
| logging.info("Inserting trial flow") |
| request = flow_mod_gen(config["port_map"], True) |
| self.controller.message_send(request) |
| |
| logging.info("Sending table stats request") |
| request = message.table_stats_request() |
| response, pkt = self.controller.transact(request) |
| self.assertTrue(response is not None, |
| "Did not get reply for table stats") |
| logging.debug(response.show()) |
| |
| class DescStatsGet(base_tests.SimpleProtocol): |
| """ |
| Get stats |
| |
| Simply verify stats get transaction |
| """ |
| def runTest(self): |
| logging.info("Running DescStatsGet") |
| |
| logging.info("Sending stats request") |
| request = message.desc_stats_request() |
| response, pkt = self.controller.transact(request) |
| self.assertTrue(response is not None, |
| "Did not get reply for desc stats") |
| logging.debug(response.show()) |
| |
| class FlowMod(base_tests.SimpleProtocol): |
| """ |
| Insert a flow |
| |
| Simple verification of a flow mod transaction |
| """ |
| |
| def runTest(self): |
| logging.info("Running " + str(self)) |
| request = flow_mod_gen(config["port_map"], True) |
| self.controller.message_send(request) |
| |
| class PortConfigMod(base_tests.SimpleProtocol): |
| """ |
| Modify a bit in port config and verify changed |
| |
| Get the switch configuration, modify the port configuration |
| and write it back; get the config again and verify changed. |
| Then set it back to the way it was. |
| """ |
| |
| def runTest(self): |
| logging.info("Running " + str(self)) |
| for of_port, ifname in config["port_map"].items(): # Grab first port |
| break |
| |
| (hw_addr, port_config, advert) = \ |
| port_config_get(self.controller, of_port) |
| self.assertTrue(port_config is not None, "Did not get port config") |
| |
| logging.debug("No flood bit port " + str(of_port) + " is now " + |
| str(port_config & ofp.OFPPC_NO_FLOOD)) |
| |
| rv = port_config_set(self.controller, of_port, |
| port_config ^ ofp.OFPPC_NO_FLOOD, ofp.OFPPC_NO_FLOOD) |
| self.assertTrue(rv != -1, "Error sending port mod") |
| do_barrier(self.controller) |
| |
| # Verify change took place with same feature request |
| (hw_addr, port_config2, advert) = \ |
| port_config_get(self.controller, of_port) |
| logging.debug("No flood bit port " + str(of_port) + " is now " + |
| str(port_config2 & ofp.OFPPC_NO_FLOOD)) |
| self.assertTrue(port_config2 is not None, "Did not get port config2") |
| self.assertTrue(port_config2 & ofp.OFPPC_NO_FLOOD != |
| port_config & ofp.OFPPC_NO_FLOOD, |
| "Bit change did not take") |
| # Set it back |
| rv = port_config_set(self.controller, of_port, port_config, |
| ofp.OFPPC_NO_FLOOD) |
| self.assertTrue(rv != -1, "Error sending port mod") |
| do_barrier(self.controller) |
| |
| class PortConfigModErr(base_tests.SimpleProtocol): |
| """ |
| Modify a bit in port config on an invalid port and verify |
| error message is received. |
| """ |
| |
| def runTest(self): |
| logging.info("Running " + str(self)) |
| |
| # pick a random bad port number |
| bad_port = random.randint(1, ofp.OFPP_MAX) |
| count = 0 |
| while (count < 50) and (bad_port in config["port_map"].keys()): |
| bad_port = random.randint(1, ofp.OFPP_MAX) |
| count = count + 1 |
| self.assertTrue(count < 50, "Error selecting bad port") |
| logging.info("Select " + str(bad_port) + " as invalid port") |
| |
| rv = port_config_set(self.controller, bad_port, |
| ofp.OFPPC_NO_FLOOD, ofp.OFPPC_NO_FLOOD) |
| self.assertTrue(rv != -1, "Error sending port mod") |
| |
| # poll for error message |
| while True: |
| (response, raw) = self.controller.poll(ofp.OFPT_ERROR) |
| if not response: # Timeout |
| break |
| if response.code == ofp.OFPPMFC_BAD_PORT: |
| logging.info("Received error message with OFPPMFC_BAD_PORT code") |
| break |
| if not config["relax"]: # Only one attempt to match |
| break |
| count += 1 |
| if count > 10: # Too many tries |
| break |
| |
| self.assertTrue(response is not None, 'Did not receive error message') |
| |
| class BadMessage(base_tests.SimpleProtocol): |
| """ |
| Send a message with a bad type and verify an error is returned |
| """ |
| |
| def runTest(self): |
| logging.info("Running " + str(self)) |
| request = illegal_message.illegal_message_type() |
| |
| reply, pkt = self.controller.transact(request) |
| self.assertTrue(reply is not None, "Did not get response to bad req") |
| self.assertTrue(reply.header.type == ofp.OFPT_ERROR, |
| "reply not an error message") |
| self.assertTrue(reply.type == ofp.OFPET_BAD_REQUEST, |
| "reply error type is not bad request") |
| self.assertTrue(reply.code == ofp.OFPBRC_BAD_TYPE, |
| "reply error code is not bad type") |
| |
| if __name__ == "__main__": |
| print "Please run through oft script: ./oft --test_spec=basic" |