| import unittest |
| from nose.tools import * |
| from nose.twistedtools import reactor, deferred |
| from twisted.internet import defer |
| from scapy.all import * |
| import time, monotonic |
| import os, sys |
| import tempfile |
| import json |
| import random |
| import threading |
| |
| CORD_TEST_UTILS = 'utils' |
| test_root = os.getenv('CORD_TEST_ROOT') or './' |
| sys.path.append(test_root + CORD_TEST_UTILS) |
| from IGMP import * |
| from McastTraffic import * |
| from Stats import Stats |
| log.setLevel('INFO') |
| |
| IGMP_DST_MAC = "01:00:5e:00:01:01" |
| IGMP_SRC_MAC = "5a:e1:ac:ec:4d:a1" |
| IP_SRC = '1.2.3.4' |
| IP_DST = '224.0.1.1' |
| |
| igmp_eth = Ether(dst = IGMP_DST_MAC, src = IGMP_SRC_MAC, type = ETH_P_IP) |
| igmp_ip = IP(dst = IP_DST, src = IP_SRC) |
| |
| class IGMPTestState: |
| |
| def __init__(self, groups = [], df = None, state = 0): |
| self.df = df |
| self.state = state |
| self.counter = 0 |
| self.groups = groups |
| self.group_map = {} ##create a send/recv count map |
| for g in groups: |
| self.group_map[g] = (Stats(), Stats()) |
| |
| def update(self, group, tx = 0, rx = 0, t = 0): |
| self.counter += 1 |
| index = 0 if rx == 0 else 1 |
| v = tx if rx == 0 else rx |
| if self.group_map.has_key(group): |
| self.group_map[group][index].update(packets = v, t = t) |
| |
| def update_state(self): |
| self.state = self.state ^ 1 |
| |
| class igmp_exchange(unittest.TestCase): |
| |
| IGMP_TEST_TIMEOUT = 5 |
| MCAST_TRAFFIC_TIMEOUT = 10 |
| max_packets = 100 |
| |
| def onos_ssm_table_load(self, groups, src_list): |
| ssm_dict = {'apps' : { 'org.onosproject.igmp' : { 'ssmTranslate' : [] } } } |
| ssm_xlate_list = ssm_dict['apps']['org.onosproject.igmp']['ssmTranslate'] |
| for g in groups: |
| for s in src_list: |
| d = {} |
| d['source'] = s |
| d['group'] = g |
| ssm_xlate_list.append(d) |
| json_dict = json.JSONEncoder().encode(ssm_dict) |
| with tempfile.NamedTemporaryFile(delete=False) as temp: |
| temp.write(json_dict) |
| temp.flush() |
| temp.close() |
| log.debug('Loading SSM config in file %s to ONOS.' %temp.name) |
| os.system('./igmp_ssm_load.sh %s' %temp.name) |
| os.unlink(temp.name) |
| ##Wait for ONOS to populate the SSM map before sending join.Huh |
| time.sleep(2) |
| |
| def igmp_verify_join(self, igmpStateList): |
| sendState, recvState = igmpStateList |
| ## check if the send is received for the groups |
| for g in sendState.groups: |
| tx_stats = sendState.group_map[g][0] |
| tx = tx_stats.count |
| assert_greater(tx, 0) |
| rx_stats = recvState.group_map[g][1] |
| rx = rx_stats.count |
| assert_greater(rx, 0) |
| log.info('Receive stats %s for group %s' %(rx_stats, g)) |
| |
| log.info('IGMP test verification success') |
| |
| def igmp_verify_leave(self, igmpStateList, leave_groups): |
| sendState, recvState = igmpStateList[0], igmpStateList[1] |
| ## check if the send is received for the groups |
| for g in sendState.groups: |
| tx_stats = sendState.group_map[g][0] |
| rx_stats = recvState.group_map[g][1] |
| tx = tx_stats.count |
| rx = rx_stats.count |
| assert_greater(tx, 0) |
| if g not in leave_groups: |
| log.info('Received %d packets for group %s' %(rx, g)) |
| for g in leave_groups: |
| rx = recvState.group_map[g][1].count |
| assert_equal(rx, 0) |
| |
| log.info('IGMP test verification success') |
| |
| def mcast_traffic_timer(self): |
| self.mcastTraffic.stopReceives() |
| |
| def send_mcast_cb(self, send_state): |
| for g in send_state.groups: |
| send_state.update(g, tx = 1) |
| return 0 |
| |
| ##Runs in the context of twisted reactor thread |
| def igmp_recv(self, igmpState, iface = 'veth0'): |
| p = self.recv_socket.recv() |
| send_time = float(p.payload.load) |
| recv_time = monotonic.monotonic() |
| #log.info( 'Recv in %.6f secs' %(recv_time - send_time)) |
| igmpState.update(p.dst, rx = 1, t = recv_time - send_time) |
| return 0 |
| |
| def send_igmp_join(self, groups, src_list = ['1.2.3.4'], iface = 'veth0', delay = 2): |
| self.onos_ssm_table_load(groups, src_list) |
| igmp = IGMPv3(type = IGMP_TYPE_V3_MEMBERSHIP_REPORT, max_resp_code=30, |
| gaddr='224.0.1.1') |
| for g in groups: |
| gr = IGMPv3gr(rtype=IGMP_V3_GR_TYPE_EXCLUDE, mcaddr=g) |
| gr.sources = src_list |
| igmp.grps.append(gr) |
| |
| pkt = igmp_eth/igmp_ip/igmp |
| IGMPv3.fixup(pkt) |
| sendp(pkt, iface=iface) |
| if delay != 0: |
| time.sleep(delay) |
| |
| def send_igmp_leave(self, groups, src_list = ['1.2.3.4'], iface = 'veth0', delay = 2): |
| igmp = IGMPv3(type = IGMP_TYPE_V3_MEMBERSHIP_REPORT, max_resp_code=30, |
| gaddr='224.0.1.1') |
| for g in groups: |
| gr = IGMPv3gr(rtype=IGMP_V3_GR_TYPE_INCLUDE, mcaddr=g) |
| gr.sources = src_list |
| igmp.grps.append(gr) |
| |
| pkt = igmp_eth/igmp_ip/igmp |
| IGMPv3.fixup(pkt) |
| sendp(pkt, iface = iface) |
| if delay != 0: |
| time.sleep(delay) |
| |
| @deferred(timeout=MCAST_TRAFFIC_TIMEOUT+10) |
| def test_igmp_join_verify_traffic(self): |
| groups = ['224.0.1.1', '225.0.0.1'] |
| df = defer.Deferred() |
| igmpState = IGMPTestState(groups = groups, df = df) |
| igmpStateRecv = IGMPTestState(groups = groups, df = df) |
| igmpStateList = (igmpState, igmpStateRecv) |
| mcastTraffic = McastTraffic(groups, iface= 'veth2', cb = self.send_mcast_cb, arg = igmpState) |
| self.df = df |
| self.mcastTraffic = mcastTraffic |
| self.recv_socket = L3PacketSocket(iface = 'veth0', type = ETH_P_IP) |
| |
| def igmp_srp_task(stateList): |
| igmpSendState, igmpRecvState = stateList |
| if not mcastTraffic.isRecvStopped(): |
| result = self.igmp_recv(igmpRecvState) |
| reactor.callLater(0, igmp_srp_task, stateList) |
| else: |
| self.mcastTraffic.stop() |
| self.recv_socket.close() |
| self.igmp_verify_join(stateList) |
| self.df.callback(0) |
| |
| self.send_igmp_join(groups) |
| mcastTraffic.start() |
| self.test_timer = reactor.callLater(self.MCAST_TRAFFIC_TIMEOUT, self.mcast_traffic_timer) |
| reactor.callLater(0, igmp_srp_task, igmpStateList) |
| return df |
| |
| @deferred(timeout=MCAST_TRAFFIC_TIMEOUT+10) |
| def test_igmp_leave_verify_traffic(self): |
| groups = ['224.0.1.10', '225.0.0.10'] |
| leave_groups = ['224.0.1.10'] |
| df = defer.Deferred() |
| igmpState = IGMPTestState(groups = groups, df = df) |
| igmpStateRecv = IGMPTestState(groups = groups, df = df) |
| igmpStateList = (igmpState, igmpStateRecv) |
| mcastTraffic = McastTraffic(groups, iface= 'veth2', cb = self.send_mcast_cb, |
| arg = igmpState) |
| self.df = df |
| self.mcastTraffic = mcastTraffic |
| self.recv_socket = L3PacketSocket(iface = 'veth0', type = ETH_P_IP) |
| |
| def igmp_srp_task(stateList): |
| igmpSendState, igmpRecvState = stateList |
| if not mcastTraffic.isRecvStopped(): |
| result = self.igmp_recv(igmpRecvState) |
| reactor.callLater(0, igmp_srp_task, stateList) |
| else: |
| self.mcastTraffic.stop() |
| self.recv_socket.close() |
| self.igmp_verify_leave(stateList, leave_groups) |
| self.df.callback(0) |
| |
| self.send_igmp_join(groups) |
| self.send_igmp_leave(leave_groups, delay = 3) |
| mcastTraffic.start() |
| self.test_timer = reactor.callLater(self.MCAST_TRAFFIC_TIMEOUT, self.mcast_traffic_timer) |
| reactor.callLater(0, igmp_srp_task, igmpStateList) |
| return df |
| |
| @deferred(timeout=100) |
| def test_igmp_leave_join_loop(self): |
| self.groups = ['226.0.1.1', '227.0.0.1', '228.0.0.1', '229.0.0.1', '230.0.0.1' ] |
| self.src_list = ['3.4.5.6', '7.8.9.10'] |
| df = defer.Deferred() |
| self.df = df |
| self.iterations = 0 |
| self.num_groups = len(self.groups) |
| self.MAX_TEST_ITERATIONS = 10 |
| |
| def igmp_srp_task(v): |
| if self.iterations < self.MAX_TEST_ITERATIONS: |
| if v == 1: |
| ##join test |
| self.num_groups = random.randint(0, len(self.groups)) |
| self.send_igmp_join(self.groups[:self.num_groups], |
| src_list = self.src_list, |
| iface = 'veth0', delay = 0) |
| else: |
| self.send_igmp_leave(self.groups[:self.num_groups], |
| src_list = self.src_list, |
| iface = 'veth0', delay = 0) |
| self.iterations += 1 |
| v ^= 1 |
| reactor.callLater(1.0 + 0.5*self.num_groups, |
| igmp_srp_task, v) |
| else: |
| self.df.callback(0) |
| |
| reactor.callLater(0, igmp_srp_task, 1) |
| return df |
| |
| def igmp_join_task(self, intf, groups, state, src_list = ['1.2.3.4']): |
| self.onos_ssm_table_load(groups, src_list) |
| igmp = IGMPv3(type = IGMP_TYPE_V3_MEMBERSHIP_REPORT, max_resp_code=30, |
| gaddr='224.0.1.1') |
| for g in groups: |
| gr = IGMPv3gr(rtype = IGMP_V3_GR_TYPE_EXCLUDE, mcaddr = g) |
| gr.sources = src_list |
| igmp.grps.append(gr) |
| |
| for g in groups: |
| state.group_map[g][0].update(1, t = monotonic.monotonic()) |
| |
| pkt = igmp_eth/igmp_ip/igmp |
| IGMPv3.fixup(pkt) |
| sendp(pkt, iface=intf) |
| log.debug('Returning from join task') |
| |
| def igmp_recv_task(self, intf, groups, join_state): |
| recv_socket = L3PacketSocket(iface = intf, type = ETH_P_IP) |
| group_map = {} |
| for g in groups: |
| group_map[g] = [0,0] |
| |
| while True: |
| p = recv_socket.recv() |
| if p.dst in groups and group_map[p.dst][0] == 0: |
| group_map[p.dst][0] += 1 |
| group_map[p.dst][1] = monotonic.monotonic() |
| c = 0 |
| for g in groups: |
| c += group_map[g][0] |
| if c == len(groups): |
| break |
| for g in groups: |
| join_start = join_state.group_map[g][0].start |
| recv_time = group_map[g][1] * 1000000 |
| delta = (recv_time - join_start) |
| log.info('Join for group %s received in %.3f usecs' % |
| (g, delta)) |
| |
| recv_socket.close() |
| log.debug('Returning from recv task') |
| |
| def group_latency_check(self, groups): |
| tasks = [] |
| self.send_igmp_leave(groups = groups) |
| join_state = IGMPTestState(groups = groups) |
| tasks.append(threading.Thread(target=self.igmp_join_task, args = ('veth0', groups, join_state,))) |
| traffic_state = IGMPTestState(groups = groups) |
| mcast_traffic = McastTraffic(groups, iface= 'veth2', cb = self.send_mcast_cb, |
| arg = traffic_state) |
| mcast_traffic.start() |
| tasks.append(threading.Thread(target=self.igmp_recv_task, args = ('veth0', groups, join_state))) |
| for t in tasks: |
| t.start() |
| for t in tasks: |
| t.join() |
| |
| mcast_traffic.stop() |
| self.send_igmp_leave(groups = groups) |
| return |
| |
| def test_igmp_1group_join_latency(self): |
| groups = ['239.0.1.1'] |
| self.group_latency_check(groups) |
| |
| def test_igmp_2group_join_latency(self): |
| groups = ['239.0.1.1', '240.0.1.1'] |
| self.group_latency_check(groups) |
| |
| def test_igmp_Ngroup_join_latency(self): |
| groups = ['239.0.1.1', '240.0.1.1', '241.0.1.1', '242.0.1.1'] |
| self.group_latency_check(groups) |
| |
| |