+import math
+import time
+
+import ovstest.util as util
+
+DEFAULT_TEST_BRIDGE = "ovstestbr0"
+DEFAULT_TEST_PORT = "ovstestport0"
+DEFAULT_TEST_TUN = "ovstestport1"
+NO_HANDLE = -1
+
+
+def do_udp_tests(receiver, sender, tbwidth, duration, port_sizes):
+ """Schedule UDP tests between receiver and sender"""
+ server1 = util.rpc_client(receiver[0], receiver[1])
+ server2 = util.rpc_client(sender[0], sender[1])
+
+ udpformat = '{0:>15} {1:>15} {2:>15} {3:>15} {4:>15}'
+
+ print ("UDP test from %s:%u to %s:%u with target bandwidth %s" %
+ (sender[0], sender[1], receiver[0], receiver[1],
+ util.bandwidth_to_string(tbwidth)))
+ print udpformat.format("Datagram Size", "Snt Datagrams", "Rcv Datagrams",
+ "Datagram Loss", "Bandwidth")
+
+ for size in port_sizes:
+ listen_handle = NO_HANDLE
+ send_handle = NO_HANDLE
+ try:
+ packetcnt = (tbwidth * duration) / size
+
+ listen_handle = server1.create_udp_listener(receiver[3])
+ if listen_handle == NO_HANDLE:
+ print ("Server could not open UDP listening socket on port"
+ " %u. Try to restart the server.\n" % receiver[3])
+ return
+ send_handle = server2.create_udp_sender(
+ (util.ip_from_cidr(receiver[2]),
+ receiver[3]), packetcnt, size,
+ duration)
+
+ # Using sleep here because there is no other synchronization
+ # source that would notify us when all sent packets were received
+ time.sleep(duration + 1)
+
+ rcv_packets = server1.get_udp_listener_results(listen_handle)
+ snt_packets = server2.get_udp_sender_results(send_handle)
+
+ loss = math.ceil(((snt_packets - rcv_packets) * 10000.0) /
+ snt_packets) / 100
+ bwidth = (rcv_packets * size) / duration
+
+ print udpformat.format(size, snt_packets, rcv_packets,
+ '%.2f%%' % loss, util.bandwidth_to_string(bwidth))
+ finally:
+ if listen_handle != NO_HANDLE:
+ server1.close_udp_listener(listen_handle)
+ if send_handle != NO_HANDLE:
+ server2.close_udp_sender(send_handle)
+ print "\n"
+
+
+def do_tcp_tests(receiver, sender, duration):
+ """Schedule TCP tests between receiver and sender"""
+ server1 = util.rpc_client(receiver[0], receiver[1])
+ server2 = util.rpc_client(sender[0], sender[1])
+
+ tcpformat = '{0:>15} {1:>15} {2:>15}'
+ print "TCP test from %s:%u to %s:%u (full speed)" % (sender[0], sender[1],
+ receiver[0], receiver[1])
+ print tcpformat.format("Snt Bytes", "Rcv Bytes", "Bandwidth")
+
+ listen_handle = NO_HANDLE
+ send_handle = NO_HANDLE
+ try:
+ listen_handle = server1.create_tcp_listener(receiver[3])
+ if listen_handle == NO_HANDLE:
+ print ("Server was unable to open TCP listening socket on port"
+ " %u. Try to restart the server.\n" % receiver[3])
+ return
+ send_handle = server2.create_tcp_sender(util.ip_from_cidr(receiver[2]),
+ receiver[3], duration)
+
+ time.sleep(duration + 1)
+
+ rcv_bytes = long(server1.get_tcp_listener_results(listen_handle))
+ snt_bytes = long(server2.get_tcp_sender_results(send_handle))
+
+ bwidth = rcv_bytes / duration
+
+ print tcpformat.format(snt_bytes, rcv_bytes,
+ util.bandwidth_to_string(bwidth))
+ finally:
+ if listen_handle != NO_HANDLE:
+ server1.close_tcp_listener(listen_handle)
+ if send_handle != NO_HANDLE:
+ server2.close_tcp_sender(send_handle)
+ print "\n"
+
+
+def do_l3_tests(node1, node2, bandwidth, duration, ps, type):
+ """
+ Do L3 tunneling tests. Each node is given as 4 tuple - physical
+ interface IP, control port, test IP and test port.
+ """
+ server1 = util.rpc_client(node1[0], node1[1])
+ server2 = util.rpc_client(node2[0], node2[1])
+ servers_with_bridges = []
+ try:
+ server1.create_bridge(DEFAULT_TEST_BRIDGE)
+ servers_with_bridges.append(server1)
+ server2.create_bridge(DEFAULT_TEST_BRIDGE)
+ servers_with_bridges.append(server2)
+
+ server1.interface_up(DEFAULT_TEST_BRIDGE)
+ server2.interface_up(DEFAULT_TEST_BRIDGE)
+
+ server1.interface_assign_ip(DEFAULT_TEST_BRIDGE, node1[2], None)
+ server2.interface_assign_ip(DEFAULT_TEST_BRIDGE, node2[2], None)
+
+ server1.add_port_to_bridge(DEFAULT_TEST_BRIDGE, DEFAULT_TEST_TUN)
+ server2.add_port_to_bridge(DEFAULT_TEST_BRIDGE, DEFAULT_TEST_TUN)
+
+ server1.ovs_vsctl_set("Interface", DEFAULT_TEST_TUN, "type",
+ None, type)
+ server2.ovs_vsctl_set("Interface", DEFAULT_TEST_TUN, "type",
+ None, type)
+ server1.ovs_vsctl_set("Interface", DEFAULT_TEST_TUN, "options",
+ "remote_ip", node2[0])
+ server2.ovs_vsctl_set("Interface", DEFAULT_TEST_TUN, "options",
+ "remote_ip", node1[0])
+
+ do_udp_tests(node1, node2, bandwidth, duration, ps)
+ do_udp_tests(node2, node1, bandwidth, duration, ps)
+ do_tcp_tests(node1, node2, duration)
+ do_tcp_tests(node2, node1, duration)
+
+ finally:
+ for server in servers_with_bridges:
+ server.del_bridge(DEFAULT_TEST_BRIDGE)
+
+
+
+def do_vlan_tests(node1, node2, bandwidth, duration, ps, tag):
+ """
+ Do VLAN tests between node1 and node2. Each node is given
+ as 4 tuple - physical interface IP, control port, test IP and
+ test port.
+ """
+ server1 = util.rpc_client(node1[0], node1[1])
+ server2 = util.rpc_client(node2[0], node2[1])
+
+ br_name1 = None
+ br_name2 = None
+
+ servers_with_test_ports = []
+
+ try:
+ interface_node1 = server1.get_interface(node1[0])
+ interface_node2 = server2.get_interface(node2[0])
+
+ if server1.is_ovs_bridge(interface_node1):
+ br_name1 = interface_node1
+ else:
+ br_name1 = DEFAULT_TEST_BRIDGE
+ server1.create_test_bridge(br_name1, interface_node1)
+
+ if server2.is_ovs_bridge(interface_node2):
+ br_name2 = interface_node2
+ else:
+ br_name2 = DEFAULT_TEST_BRIDGE
+ server2.create_test_bridge(br_name2, interface_node2)
+
+ server1.add_port_to_bridge(br_name1, DEFAULT_TEST_PORT)
+ servers_with_test_ports.append(server1)
+ server2.add_port_to_bridge(br_name2, DEFAULT_TEST_PORT)
+ servers_with_test_ports.append(server2)
+
+ server1.ovs_vsctl_set("Port", DEFAULT_TEST_PORT, "tag", None, tag)
+ server2.ovs_vsctl_set("Port", DEFAULT_TEST_PORT, "tag", None, tag)
+
+ server1.ovs_vsctl_set("Interface", DEFAULT_TEST_PORT, "type", None,
+ "internal")
+ server2.ovs_vsctl_set("Interface", DEFAULT_TEST_PORT, "type", None,
+ "internal")
+
+ server1.interface_assign_ip(DEFAULT_TEST_PORT, node1[2], None)
+ server2.interface_assign_ip(DEFAULT_TEST_PORT, node2[2], None)
+
+ server1.interface_up(DEFAULT_TEST_PORT)
+ server2.interface_up(DEFAULT_TEST_PORT)
+
+ do_udp_tests(node1, node2, bandwidth, duration, ps)
+ do_udp_tests(node2, node1, bandwidth, duration, ps)
+ do_tcp_tests(node1, node2, duration)
+ do_tcp_tests(node2, node1, duration)
+
+ finally:
+ for server in servers_with_test_ports:
+ server.del_port_from_bridge(DEFAULT_TEST_PORT)
+ if br_name1 == DEFAULT_TEST_BRIDGE:
+ server1.del_test_bridge(br_name1, interface_node1)
+ if br_name2 == DEFAULT_TEST_BRIDGE:
+ server2.del_test_bridge(br_name2, interface_node2)
+
+
+def do_direct_tests(node1, node2, bandwidth, duration, ps):
+ """
+ Do tests between outer IPs without involving Open vSwitch. Each
+ node is given as 4 tuple - physical interface IP, control port,
+ test IP and test port. Direct tests will use physical interface
+ IP as the test IP address.
+ """
+ n1 = (node1[0], node1[1], node1[0], node1[3])
+ n2 = (node2[0], node2[1], node2[0], node2[3])
+
+ do_udp_tests(n1, n2, bandwidth, duration, ps)
+ do_udp_tests(n2, n1, bandwidth, duration, ps)
+ do_tcp_tests(n1, n2, duration)
+ do_tcp_tests(n2, n1, duration)
+
+
+def configure_l3(conf, tunnel_mode):
+ """
+ This function creates a temporary test bridge and adds an L3 tunnel.
+ """
+ s = util.start_local_server(conf[1][1])
+ server = util.rpc_client("127.0.0.1", conf[1][1])
+ server.create_bridge(DEFAULT_TEST_BRIDGE)
+ server.add_port_to_bridge(DEFAULT_TEST_BRIDGE, DEFAULT_TEST_PORT)
+ server.interface_up(DEFAULT_TEST_BRIDGE)
+ server.interface_assign_ip(DEFAULT_TEST_BRIDGE, conf[1][0],
+ None)
+ server.ovs_vsctl_set("Interface", DEFAULT_TEST_PORT, "type",
+ None, tunnel_mode)
+ server.ovs_vsctl_set("Interface", DEFAULT_TEST_PORT, "options",
+ "remote_ip", conf[0])
+ return s