Use 'ping' to test send/recive multicat packets. Flood ping test is also added. Limit guest network as 'bridge' mode, because multicast packets could not be transmitted to guest when using 'user' network. Add join_mcast.py for joining machine into multicast groups. Signed-off-by: Amos Kong <akong@xxxxxxxxxx> --- 0 files changed, 0 insertions(+), 0 deletions(-) diff --git a/client/tests/kvm/scripts/join_mcast.py b/client/tests/kvm/scripts/join_mcast.py new file mode 100755 index 0000000..0d90e5c --- /dev/null +++ b/client/tests/kvm/scripts/join_mcast.py @@ -0,0 +1,29 @@ +import socket, struct, os, signal, sys +# this script is used to join machine into multicast groups +# author: Amos Kong <akong@xxxxxxxxxx> + +if len(sys.argv) < 4: + print """%s [mgroup_count] [prefix] [suffix] + mgroup_count: count of multicast addresses + prefix: multicast address prefix + suffix: multicast address suffix""" % sys.argv[0] + sys.exit() + +mgroup_count = int(sys.argv[1]) +prefix = sys.argv[2] +suffix = int(sys.argv[3]) + +s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) +for i in range(mgroup_count): + mcast = prefix + "." + str(suffix + i) + try: + mreq = struct.pack("4sl", socket.inet_aton(mcast), socket.INADDR_ANY) + s.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq) + except: + s.close() + print "Could not join multicast: %s" % mcast + raise + +print "join_mcast_pid:%s" % os.getpid() +os.kill(os.getpid(), signal.SIGSTOP) +s.close() diff --git a/client/tests/kvm/tests/multicast.py b/client/tests/kvm/tests/multicast.py new file mode 100644 index 0000000..6b0e106 --- /dev/null +++ b/client/tests/kvm/tests/multicast.py @@ -0,0 +1,67 @@ +import logging, commands, os, re +from autotest_lib.client.common_lib import error +import kvm_test_utils, kvm_net_utils + + +def run_multicast(test, params, env): + """ + Test multicast function of nic (rtl8139/e1000/virtio) + + 1) Create a VM + 2) Join guest into multicast groups + 3) Ping multicast addresses on host + 4) Flood ping test with different size of packets + 5) Final ping test and check if lose packet + + @param test: Kvm test object + @param params: Dictionary with the test parameters. + @param env: Dictionary with test environment. + """ + vm = kvm_test_utils.get_living_vm(env, params.get("main_vm")) + session = kvm_test_utils.wait_for_login(vm, + timeout=int(params.get("login_timeout", 360))) + + # stop iptable/selinux on guest/host + cmd = "/etc/init.d/iptables stop && echo 0 > /selinux/enforce" + session.get_command_status(cmd) + commands.getoutput(cmd) + # make sure guest replies to broadcasts + session.get_command_status("echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore" + "_broadcasts && echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all") + + # base multicast address + mcast = params.get("mcast", "225.0.0.1") + # count of multicast addresses, less than 20 + mgroup_count = int(params.get("mgroup_count", 5)) + flood_minutes = float(params.get("flood_minutes", 10)) + ifname = vm.get_ifname() + prefix = re.findall("\d+.\d+.\d+", mcast)[0] + suffix = int(re.findall("\d+", mcast)[-1]) + # copy python script to guest for joining guest to multicast groups + mcast_path = os.path.join(test.bindir, "scripts/join_mcast.py") + vm.copy_files_to(mcast_path, "/tmp") + output = session.get_command_output("python /tmp/join_mcast.py %d %s %d" % + (mgroup_count, prefix, suffix)) + # if success to join multicast the process will be paused, and return pid. + if not re.findall("join_mcast_pid:(\d+)", output): + raise error.TestFail("Can't join multicast groups,output:%s" % output) + pid = output.split()[0] + + try: + for i in range(mgroup_count): + new_suffix = suffix + i + mcast = "%s.%d" % (prefix, new_suffix) + logging.info("Initial ping test, mcast: %s", mcast) + s, o = kvm_net_utils.ping(mcast, 10, interface=ifname, timeout=20) + if s != 0: + raise error.TestFail(" Ping return non-zero value %s" % o) + logging.info("Flood ping test, mcast: %s", mcast) + kvm_net_utils.ping(mcast, None, interface=ifname, flood=True, + output_func=None, timeout=flood_minutes*60) + logging.info("Final ping test, mcast: %s", mcast) + s, o = kvm_net_utils.ping(mcast, 10, interface=ifname, timeout=20) + if s != 0: + raise error.TestFail(" Ping return non-zero value %s" % o) + finally: + session.get_command_output("kill -s SIGCONT %s" % pid) + session.close() diff --git a/client/tests/kvm/tests_base.cfg.sample b/client/tests/kvm/tests_base.cfg.sample index 9e2b9a0..9594a38 100644 --- a/client/tests/kvm/tests_base.cfg.sample +++ b/client/tests/kvm/tests_base.cfg.sample @@ -374,6 +374,13 @@ variants: type = nic_promisc file_size = 1, 1460, 65000, 100000000 + - multicast: install setup unattended_install.cdrom + type = multicast + nic_mode = tap + mcast = 225.0.0.1 + mgroup_count = 20 + flood_minutes = 1 + - physical_resources_check: install setup unattended_install.cdrom type = physical_resources_check catch_uuid_cmd = dmidecode | awk -F: '/UUID/ {print $2}' @@ -1050,7 +1057,7 @@ variants: # Windows section - @Windows: - no autotest linux_s3 vlan_tag ioquit unattended_install.(url|nfs|remote_ks) jumbo file_transfer nicdriver_unload nic_promisc + no autotest linux_s3 vlan_tag ioquit unattended_install.(url|nfs|remote_ks) jumbo file_transfer nicdriver_unload nic_promisc multicast shutdown_command = shutdown /s /f /t 0 reboot_command = shutdown /r /f /t 0 status_test_command = echo %errorlevel% -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html