From patchwork Tue Oct 5 13:17:13 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Meneghel Rodrigues X-Patchwork-Id: 232741 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o95DEkro020938 for ; Tue, 5 Oct 2010 13:14:46 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752724Ab0JENOn (ORCPT ); Tue, 5 Oct 2010 09:14:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55898 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752699Ab0JENOn (ORCPT ); Tue, 5 Oct 2010 09:14:43 -0400 Received: from int-mx03.intmail.prod.int.phx2.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.16]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o95DEeH2018367 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 5 Oct 2010 09:14:40 -0400 Received: from virtlab105.virt.bos.redhat.com (virtlab105.virt.bos.redhat.com [10.16.72.124]) by int-mx03.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o95DEbO7009606; Tue, 5 Oct 2010 09:14:38 -0400 From: Lucas Meneghel Rodrigues To: autotest@test.kernel.org Cc: kvm@vger.kernel.org, mst@redhat.com, psuriset@linux.vnet.ibm.com, akong@redhat.com, jasowang@redhat.com, mgoldish@redhat.com Subject: [PATCH 11/19] KVM test: Add a subtest of multicast Date: Tue, 5 Oct 2010 09:17:13 -0400 Message-Id: <1286284633-17394-1-git-send-email-lmr@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.16 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Tue, 05 Oct 2010 13:14:46 +0000 (UTC) diff --git a/client/tests/kvm/scripts/join_mcast.py b/client/tests/kvm/scripts/join_mcast.py new file mode 100755 index 0000000..350cd5f --- /dev/null +++ b/client/tests/kvm/scripts/join_mcast.py @@ -0,0 +1,37 @@ +#!/usr/bin/python +import socket, struct, os, signal, sys +# -*- coding: utf-8 -*- + +""" +Script used to join machine into multicast groups. + +@author Amos Kong +""" + +if __name__ == "__main__": + 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..a47779a --- /dev/null +++ b/client/tests/kvm/tests/multicast.py @@ -0,0 +1,91 @@ +import logging, os, re +from autotest_lib.client.common_lib import error +from autotest_lib.client.bin import utils +import kvm_test_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))) + + def run_guest(cmd): + s, o = session.get_command_status_output(cmd) + if s: + logging.warning('Command %s executed in guest returned exit code ' + '%s, output: %s', cmd, s, o.strip()) + + def run_host_guest(cmd): + run_guest(cmd) + utils.system(cmd, ignore_status=True) + + # flush the firewall rules + cmd_flush = "iptables -F" + cmd_selinux = ("if [ -e /selinux/enforce ]; then setenforce 0; " + "else echo 'no /selinux/enforce file present'; fi") + run_host_guest(cmd_flush) + run_host_guest(cmd_selinux) + # make sure guest replies to broadcasts + cmd_broadcast = "echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts" + cmd_broadcast_2 = "echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all" + run_guest(cmd_broadcast) + run_guest(cmd_broadcast_2) + + # 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") + if not vm.copy_files_to(mcast_path, "/tmp"): + raise error.TestError("Fail to copy %s to guest" % mcast_path) + 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. + try: + pid = re.findall("join_mcast_pid:(\d+)", output)[0] + except IndexError: + raise error.TestFail("Can't join multicast groups,output:%s" % output) + + 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_test_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_test_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_test_utils.ping(mcast, 10, interface=ifname, timeout=20) + if s != 0: + raise error.TestFail("Ping failed, status: %s, output: %s" % + (s, o)) + + finally: + logging.debug(session.get_command_output("ipmaddr show")) + 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 68cb726..504f98d 100644 --- a/client/tests/kvm/tests_base.cfg.sample +++ b/client/tests/kvm/tests_base.cfg.sample @@ -496,6 +496,13 @@ 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}' @@ -1273,7 +1280,7 @@ 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%