Exemple #1
0
def run(test, params, env):
    """
    Test virsh interface related commands.

    (1) If using given exist interface for testing(eg. lo or ethX):
        1.1 Dumpxml for the interface(with --inactive option)
        1.2 Destroy the interface
        1.3 Undefine the interface
    (2) Define an interface from XML file
    (3) List interfaces with '--inactive' optioin
    (4) Start the interface
    (5) List interfaces with no option
    (6) Dumpxml for the interface
    (7) Get interface MAC address by interface name
    (8) Get interface name by interface MAC address
    (9) Delete interface if not use the exist interface for testing
        9.1 Destroy the interface
        9.2 Undefine the interface

    Caveat, this test may affect the host network, so using the loopback(lo)
    device by default. You can specify the interface which you want, but be
    careful.
    """

    iface_name = params.get("iface_name")
    iface_xml = params.get("iface_xml")
    iface_type = params.get("iface_type", "ethernet")
    iface_pro = params.get("iface_pro", "")
    iface_eth = params.get("iface_eth", "")
    iface_tag = params.get("iface_tag", "0")
    if iface_type == "vlan":
        iface_name = iface_eth + "." + iface_tag
    iface_eth_using = "yes" == params.get("iface_eth_using", "no")
    ping_ip = params.get("ping_ip", "localhost")
    use_exist_iface = "yes" == params.get("use_exist_iface", "no")
    status_error = "yes" == params.get("status_error", "no")
    net_restart = "yes" == params.get("iface_net_restart", "no")
    if ping_ip.count("ENTER"):
        raise error.TestNAError("Please input a valid ip address")
    if iface_name.count("ENTER"):
        raise error.TestNAError("Please input a existing bridge/ethernet name")
    vm_name = params.get("main_vm")
    vm = env.get_vm(vm_name)
    if vm:
        xml_bak = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
    iface_script = NETWORK_SCRIPT + iface_name
    iface_script_bk = os.path.join(test.tmpdir, "iface-%s.bk" % iface_name)
    net_bridge = utils_net.Bridge()
    if use_exist_iface:
        if iface_type == "bridge":
            if iface_name not in net_bridge.list_br():
                raise error.TestError("Bridge '%s' not exists" % iface_name)
            ifaces = net_bridge.get_structure()[iface_name]
            if len(ifaces) < 1:
                # In this situation, dhcp maybe cannot get ip address
                # Unless you use static, we'd better skip such case
                raise error.TestNAError("Bridge '%s' has no interface"
                                        " bridged, perhaps cannot get"
                                        " ipaddress" % iface_name)
    net_iface = utils_net.Interface(name=iface_name)
    iface_is_up = True
    list_option = "--all"
    if use_exist_iface:
        if not libvirt.check_iface(iface_name, "exists", "--all"):
            raise error.TestError("Interface '%s' not exists" % iface_name)
        iface_xml = os.path.join(test.tmpdir, "iface.xml.tmp")
        iface_is_up = net_iface.is_up()
    else:
        # Note, if not use the interface which already exists, iface_name must
        # be equal to the value specified in XML file
        if libvirt.check_iface(iface_name, "exists", "--all"):
            raise error.TestError("Interface '%s' already exists" % iface_name)
        if not iface_xml:
            raise error.TestError("XML file is needed.")
        iface_xml = os.path.join(test.tmpdir, iface_xml)
        create_xml_file(iface_xml, params)

    # Stop NetworkManager as which may conflict with virsh iface commands
    try:
        NM = utils_misc.find_command("NetworkManager")
    except ValueError:
        logging.debug("No NetworkManager service.")
        NM = None
    NM_is_running = False
    if NM is not None:
        NM_service = service.Factory.create_service("NetworkManager")
        NM_is_running = NM_service.status()
        if NM_is_running:
            NM_service.stop()

    # run test cases
    try:
        if use_exist_iface:
            # back up the interface script
            utils.run("cp %s %s" % (iface_script, iface_script_bk))
            # step 1.1
            # dumpxml for interface
            xml = virsh.iface_dumpxml(iface_name,
                                      "--inactive",
                                      to_file=iface_xml,
                                      debug=True)
            # Step 1.2
            # Destroy interface
            if iface_is_up:
                result = virsh.iface_destroy(iface_name, debug=True)
                libvirt.check_exit_status(result, status_error)

            # Step 1.3
            # Undefine interface
            result = virsh.iface_undefine(iface_name, debug=True)
            libvirt.check_exit_status(result, status_error)
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("%s is still present." % iface_name)

        # Step 2
        # Define interface
        result = virsh.iface_define(iface_xml, debug=True)
        if iface_type == "bond" and not ping_ip:
            libvirt.check_exit_status(result, True)
            return
        else:
            libvirt.check_exit_status(result, status_error)

        if net_restart:
            network = service.Factory.create_service("network")
            network.restart()

        # After network restart, (ethernet)interface will be started
        if (not net_restart and iface_type in ("bridge", "ethernet")) or\
           (not use_exist_iface and iface_type in ("vlan", "bond")):
            # Step 3
            # List inactive interfaces
            list_option = "--inactive"
            if not status_error:
                if not libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("Fail to find %s." % iface_name)

            # Step 4
            # Start interface
            result = virsh.iface_start(iface_name, debug=True)
            if not net_restart and not use_exist_iface and\
               (iface_type == "ethernet" and iface_pro in ["", "dhcp"] or
                    iface_type == "bridge" and iface_pro == "dhcp"):
                libvirt.check_exit_status(result, True)
            else:
                libvirt.check_exit_status(result, status_error)
            if not status_error:
                iface_ip = net_iface.get_ip()
                ping_ip = ping_ip if not iface_ip else iface_ip
                if ping_ip:
                    if not libvirt.check_iface(iface_name, "ping", ping_ip):
                        raise error.TestFail("Ping %s fail." % ping_ip)

        # Step 5
        # List active interfaces
        if use_exist_iface or\
           (iface_pro != "dhcp" and iface_type == "bridge") or\
           (iface_eth_using and iface_type == "vlan"):
            list_option = ""
            if not status_error:
                if not libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("Fail to find %s in active "
                                         "interface list" % iface_name)
            if vm:
                iface_mac_list = vm_xml.VMXML.get_iface_dev(vm_name)
                # Before test, detach all interfaces in guest
                for mac in iface_mac_list:
                    iface_info = vm_xml.VMXML.get_iface_by_mac(vm_name, mac)
                    type = iface_info.get('type')
                    virsh.detach_interface(
                        vm_name, "--type %s --mac %s"
                        " --config" % (type, mac))
                virsh.attach_interface(
                    vm_name, "--type %s --source %s"
                    " --config" % (iface_type, iface_name))
                vm.start()
                try:
                    # Test if guest can be login
                    vm.wait_for_login()
                except remote.LoginError:
                    raise error.TestFail("Cannot login guest with %s" %
                                         iface_name)

        # Step 6
        # Dumpxml for interface
        xml = virsh.iface_dumpxml(iface_name, "", to_file="", debug=True)
        logging.debug("Interface '%s' XML:\n%s", iface_name, xml)

        # Step 7
        # Get interface MAC address by name
        result = virsh.iface_mac(iface_name, debug=True)
        libvirt.check_exit_status(result, status_error)
        if not status_error and result.stdout.strip():
            if not libvirt.check_iface(iface_name, "mac",
                                       result.stdout.strip()):
                raise error.TestFail("Mac address check fail")

        # Step 8
        # Get interface name by MAC address
        # Bridge's Mac equal to bridged interface's mac
        if iface_type not in ("bridge", "vlan") and result.stdout.strip():
            iface_mac = net_iface.get_mac()
            result = virsh.iface_name(iface_mac, debug=True)
            libvirt.check_exit_status(result, status_error)

        # Step 9
        if not use_exist_iface:
            # Step 9.1
            # Destroy interface
            result = virsh.iface_destroy(iface_name, debug=True)
            if not net_restart and\
               iface_type == "ethernet" and iface_pro in ["", "dhcp"] or\
               iface_type == "bridge" and iface_pro == "dhcp":
                libvirt.check_exit_status(result, True)
            else:
                libvirt.check_exit_status(result, status_error)

            # Step 9.2
            # Undefine interface
            result = virsh.iface_undefine(iface_name, debug=True)
            libvirt.check_exit_status(result, status_error)
            list_option = "--all"
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("%s is still present." % iface_name)
    finally:
        if os.path.exists(iface_xml):
            os.remove(iface_xml)
        if os.path.exists(iface_script):
            os.remove(iface_script)

        if use_exist_iface:
            if not os.path.exists(iface_script):
                utils.run("mv %s %s" % (iface_script_bk, iface_script))
            if iface_is_up and\
               not libvirt.check_iface(iface_name, "exists", ""):
                # Need reload script
                utils.run("ifup %s" % iface_name)
            elif not iface_is_up and libvirt.check_iface(
                    iface_name, "exists", ""):
                net_iface.down()
            if vm:
                xml_bak.sync()
        else:
            if libvirt.check_iface(iface_name, "exists", "--all"):
                # Remove the interface
                try:
                    utils_net.bring_down_ifname(iface_name)
                except utils_net.TAPBringDownError:
                    pass
            if iface_type == "bridge":
                if iface_name in net_bridge.list_br():
                    try:
                        net_bridge.del_bridge(iface_name)
                    except IOError:
                        pass
        if NM_is_running:
            NM_service.start()
def run(test, params, env):
    """
    Test virsh interface related commands.

    As the netcf is deprecated on rhel 9, most of the iface* command will not be supported.
    Even on rhel 8, most of the commands are not recommended. Only iface-mac, iface-name,
    iface-list, iface-dumpxml are still supported. And the backend change to be udev.
    (1) Using exist interface for testing(eg. lo or ethX)
        1.1 List interfaces with '--inactive' optioin
        1.2 List interfaces with '--all' optioin
        1.3 List interfaces with no option
    (2) Dumpxml for the interface
        2.1 Dumpxml for the interface(with --inactive option)
        2.2 Dumpxml for the interface
    (3) Get interface MAC address by interface name
    (4) Get interface name by interface MAC address
    """
    vm_name = params.get("main_vm")
    vm = env.get_vm(vm_name)
    opt = params.get('opt', '')
    test_list = "yes" == params.get("test_list", "no")
    test_info = "yes" == params.get("test_info", "no")
    test_mac = "yes" == params.get("test_mac", "no")
    test_name = "yes" == params.get("test_name", "no")

    def check_host_version():
        get_hostos_version = astring.to_text(
            process.run("cat /etc/redhat-release", shell=True).stdout)
        if re.search(r'(\d+(\.\d+)?)', get_hostos_version) is not None:
            hostos_version = float(
                re.search(r'(\d+(\.\d+)?)', get_hostos_version).group(0))
            if hostos_version < float(9.0):
                test.cancel(
                    "Skip the virsh iface-* command test, only test it on RHEL 9 or above"
                )
        else:
            test.cancel("Skip the test as failed to get the os version")

    def check_status(iface_name, status):
        """
        Test the status in the iface-list output for interface

        param iface_name: the interface to be checked
        status: the expected status of the interface, active or inactive
        return: True or False
        """
        o = process.run("cat /sys/class/net/%s/carrier" % iface_name,
                        shell=True).stdout_text
        if o.strip() == '0' and status == 'active':
            return False
        elif o.strip() == '1' and status == 'inactive':
            return False
        return True

    def test_dumpxml_info(iface_name):
        """
        Check the information from iface-dumpxml for interface iface_name, including mac, mtu, link state

        Param iface_name: the interface name
        Return: True or False
        """
        # get the info from iface-dumpxml virsh cmd
        logging.debug("Check the dumpxml info for interface %s", iface_name)
        output = virsh.iface_dumpxml(iface_name)
        logging.debug("the dumpxml of interface %s is %s", iface, output)
        mtu = re.search(r"size='(.*)'", output, re.M | re.I).group(1)
        link_state = re.search(r"state='(.*)'", output, re.M | re.I).group(1)
        mac = re.search(r"address='(.*)'", output, re.M | re.I).group(1)
        # check the info in the output, includes interface type, mtu, link state, mac
        # compared with system device info
        mac_file = process.run("cat /sys/class/net/%s/address" % iface_name,
                               shell=True).stdout_text.strip()
        carrier = process.run("cat /sys/class/net/%s/carrier" % iface_name,
                              shell=True).stdout_text.strip()
        mtu_file = process.run("cat /sys/class/net/%s/mtu" % iface_name,
                               shell=True).stdout_text.strip()
        if mac != mac_file:
            logging.debug("Interface %s mac check fail", iface_name)
            return False
        if (link_state == "up" and carrier != "1") or (link_state == "down"
                                                       and carrier != "0"):
            logging.debug("Interface %s carrier check fail", iface_name)
            return False
        if mtu != mtu_file:
            logging.debug("Interface %s mtu check fail", iface_name)
            return False
        return True

    check_host_version()
    # run test cases
    if vm.is_alive():
        vm.destroy()

    try:
        output_all = virsh.iface_list("--all").stdout_text
        logging.debug("the outputs of the iface_list is %s", output_all)
        # Get the list for all the interface, active interface, inactive interface based on the iface-list --all output
        interface = []
        inactive_interface = []
        active_interface = []
        for line in output_all.splitlines():
            logging.debug("the line is %s", line)
            iface_ = [x for x in line.split() if x]
            if "active" in iface_:
                active_interface.append(iface_[0])
                interface.append(iface_[0])
            elif "inactive" in iface_:
                inactive_interface.append(iface_[0])
                interface.append(iface_[0])
        logging.debug("all interface get from the virsh iface-list is %s",
                      interface)
        logging.debug("inactive interface get from the virsh iface-list is %s",
                      inactive_interface)
        logging.debug("active interface is %s", active_interface)
        # check all the interface has been listed compared with system udev info
        if test_list:
            all_iface = process.run("ls /sys/class/net",
                                    shell=True).stdout_text.split('\n')[:-1]
            logging.debug("all interfaces get from the /sys/class/net is %s",
                          all_iface)
            # do not include the tap device
            tuntap = process.run("ip tuntap", shell=True).stdout_text
            for x in all_iface:
                if x in tuntap:
                    all_iface.remove(x)
            logging.debug("after delete the tuntap device: %s", all_iface)
            interface_ = set(interface)
            all_iface_ = set(all_iface)
            if interface_ != all_iface_:
                test.fail(
                    "Interface existence check for 'iface-list --all' fail compared with system device info!"
                )
            # check the active and inactive attribute from the iface-list is correct
            for item in active_interface:
                if not check_status(item, 'active'):
                    test.fail(
                        "The interface %s should be inactive in virsh iface-list, but it is not."
                        % item)
            for item in inactive_interface:
                if not check_status(item, 'inactive'):
                    test.fail(
                        "The interface %s should be active in virsh iface-list, but it is not."
                        % item)
            # check the filter of the flag is effective, as above check compares all interfaces with /sys/class/net,
            # now comparing with the the "iface-list --all" outputs is enough
            output = virsh.iface_list(opt).stdout_text
            cmd_iface = []
            for line in output.splitlines():
                iface_ = [x for x in line.split() if x]
                if "active" in iface_ or "inactive" in iface_:
                    cmd_iface.append(iface_[0])
            if opt == '--inactive' and set(cmd_iface) != set(
                    inactive_interface):
                test.fail(
                    "iface-list --inactive should list all inactive interface, but it is not"
                )
            elif opt == '' and set(cmd_iface) != set(active_interface):
                test.fail(
                    "iface-list should list all active interface by default, but it is not"
                )
        elif test_info:
            for iface in interface:
                if not iface.startswith("virbr"):
                    s = test_dumpxml_info(iface)
                    if not s:
                        test.fail("Checking info in dumpxml fail for %s" %
                                  iface)
                else:
                    out = process.run('ip addr show %s' % iface,
                                      shell=True).stdout_text.strip()
                    mac = re.search(r"ether (.*) brd", out,
                                    re.M | re.I).group(1)
                if test_mac:
                    # test iface-mac command
                    mac_cmd = virsh.iface_mac(iface).stdout_text.strip()
                    if mac_cmd not in process.run("ip l show %s" %
                                                  iface).stdout_text:
                        test.fail(
                            "the mac address get from virsh iface-mac for %s does not match"
                            % iface)
                if test_name:
                    # test iface-name command
                    name_cmd = virsh.iface_name(mac).stdout_text.strip()
                    if iface != name_cmd:
                        test.fail(
                            "The name get from virsh iface-name for %s is not expexted"
                            % mac)
    finally:
        logging.info(
            "Test case finished, and no need to restore any environment")
Exemple #3
0
def run(test, params, env):
    """
    Test virsh interface related commands.

    (1) If using given exist interface for testing(eg. lo or ethX):
        1.1 Dumpxml for the interface(with --inactive option)
        1.2 Destroy the interface
        1.3 Undefine the interface
    (2) Define an interface from XML file
    (3) List interfaces with '--inactive' optioin
    (4) Start the interface
    (5) List interfaces with no option
    (6) Dumpxml for the interface
    (7) Get interface MAC address by interface name
    (8) Get interface name by interface MAC address
    (9) Delete interface if not use the exist interface for testing
        9.1 Destroy the interface
        9.2 Undefine the interface

    Caveat, this test may affect the host network, so using the loopback(lo)
    device by default. You can specify the interface which you want, but be
    careful.
    """

    iface_name = params.get("iface_name", "ENTER.BRIDGE.NAME")
    iface_xml = params.get("iface_xml")
    iface_type = params.get("iface_type", "ethernet")
    iface_pro = params.get("iface_pro", "")
    iface_eth = params.get("iface_eth", "")
    iface_tag = params.get("iface_tag", "0")
    if iface_type == "vlan":
        iface_name = iface_eth + "." + iface_tag
    iface_eth_using = "yes" == params.get("iface_eth_using", "no")
    ping_ip = params.get("ping_ip", "localhost")
    use_exist_iface = "yes" == params.get("use_exist_iface", "no")
    status_error = "yes" == params.get("status_error", "no")
    net_restart = "yes" == params.get("iface_net_restart", "no")
    list_dumpxml_acl = "yes" == params.get("list_dumpxml_acl", "no")
    if ping_ip.count("ENTER"):
        raise error.TestNAError("Please input a valid ip address")
    if iface_name.count("ENTER"):
        raise error.TestNAError("Please input a existing bridge/ethernet name")

    uri = params.get("virsh_uri")
    unprivileged_user = params.get('unprivileged_user', "EXAMPLE")
    if unprivileged_user:
        if unprivileged_user.count('EXAMPLE'):
            unprivileged_user = '******'

    if not libvirt_version.version_compare(1, 1, 1):
        if params.get('setup_libvirt_polkit') == 'yes':
            raise error.TestNAError("API acl test not supported in current"
                                    + " libvirt version.")

    virsh_dargs = {'debug': True}
    list_dumpxml_dargs = {'debug': True}
    if params.get('setup_libvirt_polkit') == 'yes':
        if not list_dumpxml_acl:
            virsh_dargs['uri'] = uri
            virsh_dargs['unprivileged_user'] = unprivileged_user
        else:
            list_dumpxml_dargs['uri'] = uri
            list_dumpxml_dargs['unprivileged_user'] = unprivileged_user
            list_dumpxml_dargs['ignore_status'] = False

    # acl api negative testing params
    write_save_status_error = "yes" == params.get("write_save_status_error",
                                                  "no")
    start_status_error = "yes" == params.get("start_status_error", "no")
    stop_status_error = "yes" == params.get("stop_status_error", "no")
    delete_status_error = "yes" == params.get("delete_status_error", "no")

    vm_name = params.get("main_vm")
    vm = env.get_vm(vm_name)
    if vm:
        xml_bak = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
    iface_script = NETWORK_SCRIPT + iface_name
    iface_script_bk = os.path.join(test.tmpdir, "iface-%s.bk" % iface_name)
    net_bridge = utils_net.Bridge()
    if use_exist_iface:
        if iface_type == "bridge":
            if iface_name not in net_bridge.list_br():
                raise error.TestError("Bridge '%s' not exists" % iface_name)
            ifaces = net_bridge.get_structure()[iface_name]
            if len(ifaces) < 1:
                # In this situation, dhcp maybe cannot get ip address
                # Unless you use static, we'd better skip such case
                raise error.TestNAError("Bridge '%s' has no interface"
                                        " bridged, perhaps cannot get"
                                        " ipaddress" % iface_name)
    net_iface = utils_net.Interface(name=iface_name)
    iface_is_up = True
    list_option = "--all"
    if use_exist_iface:
        if not libvirt.check_iface(iface_name, "exists", "--all"):
            raise error.TestError("Interface '%s' not exists" % iface_name)
        iface_xml = os.path.join(test.tmpdir, "iface.xml.tmp")
        iface_is_up = net_iface.is_up()
    else:
        # Note, if not use the interface which already exists, iface_name must
        # be equal to the value specified in XML file
        if libvirt.check_iface(iface_name, "exists", "--all"):
            raise error.TestError("Interface '%s' already exists" % iface_name)
        if not iface_xml:
            raise error.TestError("XML file is needed.")
        iface_xml = os.path.join(test.tmpdir, iface_xml)
        create_xml_file(iface_xml, params)

    # Stop NetworkManager as which may conflict with virsh iface commands
    try:
        NM = utils_misc.find_command("NetworkManager")
    except ValueError:
        logging.debug("No NetworkManager service.")
        NM = None
    NM_is_running = False
    if NM is not None:
        NM_service = service.Factory.create_service("NetworkManager")
        NM_is_running = NM_service.status()
        if NM_is_running:
            NM_service.stop()

    # run test cases
    try:
        if use_exist_iface:
            # back up the interface script
            utils.run("cp %s %s" % (iface_script, iface_script_bk))
            # step 1.1
            # dumpxml for interface
            if list_dumpxml_acl:
                virsh.iface_list(**list_dumpxml_dargs)
            xml = virsh.iface_dumpxml(iface_name, "--inactive",
                                      to_file=iface_xml,
                                      **list_dumpxml_dargs)
            # Step 1.2
            # Destroy interface
            if iface_is_up:
                result = virsh.iface_destroy(iface_name, **virsh_dargs)
                if (params.get('setup_libvirt_polkit') == 'yes' and
                        stop_status_error):
                    # acl_test negative test
                    libvirt.check_exit_status(result, stop_status_error)
                    virsh.iface_destroy(iface_name, debug=True)
                else:
                    libvirt.check_exit_status(result, status_error)

            # Step 1.3
            # Undefine interface
            result = virsh.iface_undefine(iface_name, **virsh_dargs)
            if (params.get('setup_libvirt_polkit') == 'yes' and
                    delete_status_error):
                # acl_test negative test
                libvirt.check_exit_status(result, delete_status_error)
                virsh.iface_undefine(iface_name, debug=True)
            else:
                libvirt.check_exit_status(result, status_error)
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("%s is still present." % iface_name)

        # Step 2
        # Define interface
        result = virsh.iface_define(iface_xml, **virsh_dargs)
        if (params.get('setup_libvirt_polkit') == 'yes' and
                write_save_status_error):
            # acl_test negative test
            libvirt.check_exit_status(result, write_save_status_error)
            virsh.iface_define(iface_xml, debug=True)
        elif iface_type == "bond" and not ping_ip:
            libvirt.check_exit_status(result, True)
            return
        else:
            libvirt.check_exit_status(result, status_error)

        if net_restart:
            network = service.Factory.create_service("network")
            network.restart()

        # After network restart, (ethernet)interface will be started
        if (not net_restart and iface_type in ("bridge", "ethernet")) or\
           (not use_exist_iface and iface_type in ("vlan", "bond")):
            # Step 3
            # List inactive interfaces
            list_option = "--inactive"
            if not status_error:
                if not libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("Fail to find %s." % iface_name)

            # Step 4
            # Start interface
            result = virsh.iface_start(iface_name, **virsh_dargs)
            if (params.get('setup_libvirt_polkit') == 'yes' and
                    start_status_error):
                # acl_test negative test
                libvirt.check_exit_status(result, start_status_error)
                virsh.iface_start(iface_name, debug=True)
            elif (not net_restart and not use_exist_iface and
                    (iface_type == "ethernet" and iface_pro in ["", "dhcp"] or
                        iface_type == "bridge" and iface_pro == "dhcp")):
                libvirt.check_exit_status(result, True)
            else:
                libvirt.check_exit_status(result, status_error)
            if not status_error:
                iface_ip = net_iface.get_ip()
                ping_ip = ping_ip if not iface_ip else iface_ip
                if ping_ip:
                    if not libvirt.check_iface(iface_name, "ping", ping_ip):
                        raise error.TestFail("Ping %s fail." % ping_ip)

        # Step 5
        # List active interfaces
        if use_exist_iface or\
           (iface_pro != "dhcp" and iface_type == "bridge") or\
           (iface_eth_using and iface_type == "vlan"):
            list_option = ""
            if not status_error:
                if not libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("Fail to find %s in active "
                                         "interface list" % iface_name)
            if vm:
                iface_mac_list = vm_xml.VMXML.get_iface_dev(vm_name)
                # Before test, detach all interfaces in guest
                for mac in iface_mac_list:
                    iface_info = vm_xml.VMXML.get_iface_by_mac(vm_name, mac)
                    type = iface_info.get('type')
                    virsh.detach_interface(vm_name,
                                           "--type %s --mac %s"
                                           " --config" % (type, mac))
                virsh.attach_interface(vm_name,
                                       "--type %s --source %s"
                                       " --config" % (iface_type, iface_name))
                vm.start()
                try:
                    # Test if guest can be login
                    vm.wait_for_login()
                except remote.LoginError:
                    raise error.TestFail("Cannot login guest with %s" %
                                         iface_name)

        # Step 6
        # Dumpxml for interface
        if list_dumpxml_acl:
            virsh.iface_list(**list_dumpxml_dargs)
        xml = virsh.iface_dumpxml(iface_name, "", to_file="",
                                  **list_dumpxml_dargs)
        logging.debug("Interface '%s' XML:\n%s", iface_name, xml)

        # Step 7
        # Get interface MAC address by name
        result = virsh.iface_mac(iface_name, debug=True)
        libvirt.check_exit_status(result, status_error)
        if not status_error and result.stdout.strip():
            if not libvirt.check_iface(iface_name, "mac",
                                       result.stdout.strip()):
                raise error.TestFail("Mac address check fail")

        # Step 8
        # Get interface name by MAC address
        # Bridge's Mac equal to bridged interface's mac
        if iface_type not in ("bridge", "vlan") and result.stdout.strip():
            iface_mac = net_iface.get_mac()
            result = virsh.iface_name(iface_mac, debug=True)
            libvirt.check_exit_status(result, status_error)

        # Step 9
        if not use_exist_iface:
            # Step 9.1
            # Destroy interface
            result = virsh.iface_destroy(iface_name, **virsh_dargs)
            if (params.get('setup_libvirt_polkit') == 'yes' and
                    stop_status_error):
                # acl_test negative test
                libvirt.check_exit_status(result, stop_status_error)
                virsh.iface_destroy(iface_name, debug=True)
            elif (not net_restart and iface_type == "ethernet"
                    and iface_pro in ["", "dhcp"] or iface_type == "bridge"
                    and iface_pro == "dhcp"):
                libvirt.check_exit_status(result, True)
            else:
                libvirt.check_exit_status(result, status_error)

            # Step 9.2
            # Undefine interface
            result = virsh.iface_undefine(iface_name, **virsh_dargs)
            if (params.get('setup_libvirt_polkit') == 'yes' and
                    delete_status_error):
                # acl_test negative test
                libvirt.check_exit_status(result, delete_status_error)
                virsh.iface_undefine(iface_name, debug=True)
            else:
                libvirt.check_exit_status(result, status_error)
            list_option = "--all"
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("%s is still present." % iface_name)
    finally:
        if os.path.exists(iface_xml):
            os.remove(iface_xml)
        if os.path.exists(iface_script):
            os.remove(iface_script)

        if use_exist_iface:
            if not os.path.exists(iface_script):
                utils.run("mv %s %s" % (iface_script_bk, iface_script))
            if iface_is_up and\
               not libvirt.check_iface(iface_name, "exists", ""):
                # Need reload script
                utils.run("ifup %s" % iface_name)
            elif not iface_is_up and libvirt.check_iface(iface_name,
                                                         "exists", ""):
                net_iface.down()
            if vm:
                xml_bak.sync()
        else:
            if libvirt.check_iface(iface_name, "exists", "--all"):
                # Remove the interface
                try:
                    utils_net.bring_down_ifname(iface_name)
                except utils_net.TAPBringDownError:
                    pass
            if iface_type == "bridge":
                if iface_name in net_bridge.list_br():
                    try:
                        net_bridge.del_bridge(iface_name)
                    except IOError:
                        pass
        if NM_is_running:
            NM_service.start()
Exemple #4
0
def run(test, params, env):
    """
    Test virsh interface related commands.

    (1) If using given exist interface for testing(eg. lo or ethX):
        1.1 Dumpxml for the interface(with --inactive option)
        1.2 Destroy the interface
        1.3 Undefine the interface
    (2) Define an interface from XML file
    (3) List interfaces with '--inactive' optioin
    (4) Start the interface
    (5) List interfaces with no option
    (6) Dumpxml for the interface
    (7) Get interface MAC address by interface name
    (8) Get interface name by interface MAC address
    (9) Delete interface if not use the exist interface for testing
        9.1 Destroy the interface
        9.2 Undefine the interface

    Caveat, this test may affect the host network, so using the loopback(lo)
    device by default. You can specify the interface which you want, but be
    careful.
    """

    iface_name = params.get("iface_name")
    iface_xml = params.get("iface_xml")
    ping_ip = params.get("ping_ip", "localhost")
    use_exist_iface = "yes" == params.get("use_exist_iface", "no")
    status_error = "yes" == params.get("status_error", "no")
    iface_script = NETWORK_SCRIPT + iface_name
    iface_script_bk = os.path.join(test.tmpdir, "iface-%s.bk" % iface_name)
    net_iface = utils_net.Interface(name=iface_name)
    iface_is_up = True
    list_option = "--all"
    if use_exist_iface:
        if not libvirt.check_iface(iface_name, "exists", "--all"):
            raise error.TestError("Interface '%s' not exists" % iface_name)
        iface_xml = os.path.join(test.tmpdir, "iface.xml.tmp")
        iface_is_up = net_iface.is_up()
    else:
        # Note, if not use the interface which already exists, iface_name must
        # be equal to the value specified in XML file
        if libvirt.check_iface(iface_name, "exists", "--all"):
            raise error.TestError("Interface '%s' already exists" % iface_name)
        if not iface_xml:
            raise error.TestError("XML file is needed.")

    # Stop NetworkManager as which may conflict with virsh iface commands
    try:
        NM = utils_misc.find_command("NetworkManager")
    except ValueError:
        logging.debug("No NetworkManager service.")
        NM = None
    NM_is_running = False
    if NM is not None:
        NM_service = service.Factory.create_service("NetworkManager")
        NM_is_running = NM_service.status()
        if NM_is_running:
            NM_service.stop()

    # run test cases
    try:
        if use_exist_iface:
            # back up the interface script
            utils.run("cp %s %s" % (iface_script, iface_script_bk))
            # step 1.1
            # dumpxml for interface
            xml = virsh.iface_dumpxml(iface_name, "--inactive",
                                      to_file=iface_xml, debug=True)
            # Step 1.2
            # Destroy interface
            if iface_is_up:
                result = virsh.iface_destroy(iface_name, debug=True)
                libvirt.check_exit_status(result, status_error)

            # Step 1.3
            # Undefine interface
            result = virsh.iface_undefine(iface_name, debug=True)
            libvirt.check_exit_status(result, status_error)
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("%s is still present." % iface_name)

        # Step 2
        # Define interface
        result = virsh.iface_define(iface_xml, debug=True)
        libvirt.check_exit_status(result, status_error)

        # Step 3
        # List inactive interfaces
        list_option = "--inactive"
        if not status_error:
            if not libvirt.check_iface(iface_name, "exists", list_option):
                raise error.TestFail("Fail to find %s." % iface_name)

        # Step 4
        # Start interface
        result = virsh.iface_start(iface_name, debug=True)
        libvirt.check_exit_status(result, status_error)
        if not status_error:
            if not libvirt.check_iface(iface_name, "ping", ping_ip):
                raise error.TestFail("Ping %s fail." % ping_ip)

        # Step 5
        # List active interfaces
        list_option = ""
        if not status_error:
            if not libvirt.check_iface(iface_name, "exists", list_option):
                raise error.TestFail("Fail to find %s in active interface list."
                                     % iface_name)

        # Step 6
        # Dumpxml for interface
        xml = virsh.iface_dumpxml(iface_name, "", to_file="", debug=True)
        logging.debug("Interface '%s' XML:\n%s", iface_name, xml)

        # Step 7
        # Get interface MAC address by name
        result = virsh.iface_mac(iface_name, debug=True)
        libvirt.check_exit_status(result, status_error)
        if not status_error:
            if not libvirt.check_iface(iface_name, "mac", result.stdout.strip()):
                raise error.TestFail("Mac address check fail")

        # Step 8
        # Get interface name by MAC address
        iface_mac = net_iface.get_mac()
        result = virsh.iface_name(iface_mac, debug=True)
        libvirt.check_exit_status(result, status_error)

        # Step 9
        if not use_exist_iface:
            # Step 9.1
            # Destroy interface
            result = virsh.iface_destroy(iface_name, debug=True)
            libvirt.check_exit_status(result, status_error)

            # Step 9.2
            # Undefine interface
            result = virsh.iface_undefine(iface_name, debug=True)
            libvirt.check_exit_status(result, status_error)
            list_option = "--all"
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("%s is still present." % iface_name)
    finally:
        if use_exist_iface:
            if os.path.exists(iface_xml):
                os.remove(iface_xml)
            if not os.path.exists(iface_script):
                utils.run("mv %s %s" % (iface_script_bk, iface_script))
            if iface_is_up:
                # Need reload script
                utils.run("ifup %s" % iface_name)
            else:
                net_iface.down()
        else:
            if libvirt.check_iface(iface_name, "exists", "--all"):
                # Remove the interface
                if os.path.exists(iface_script):
                    os.remove(iface_script)
                utils_net.bring_down_ifname(iface_name)
        if NM_is_running:
            NM_service.start()
Exemple #5
0
def run(test, params, env):
    """
    Test virsh interface related commands.

    (1) If using given exist interface for testing(eg. lo or ethX):
        1.1 Dumpxml for the interface(with --inactive option)
        1.2 Destroy the interface
        1.3 Undefine the interface
    (2) Define an interface from XML file
    (3) List interfaces with '--inactive' option
    (4) Start the interface
    (5) List interfaces with no option
    (6) Dumpxml for the interface
    (7) Get interface MAC address by interface name
    (8) Get interface name by interface MAC address
    (9) Delete interface if not use the exist interface for testing
        9.1 Destroy the interface
        9.2 Undefine the interface

    Caveat, this test may affect the host network, so using the loopback(lo)
    device by default. You can specify the interface which you want, but be
    careful.
    """

    iface_name = params.get("iface_name", "ENTER.BRIDGE.NAME")
    iface_xml = params.get("iface_xml")
    iface_type = params.get("iface_type", "ethernet")
    iface_pro = params.get("iface_pro", "")
    iface_eth = params.get("iface_eth", "")
    iface_tag = params.get("iface_tag", "0")
    if iface_type == "vlan":
        iface_name = iface_eth + "." + iface_tag
    iface_eth_using = "yes" == params.get("iface_eth_using", "no")
    ping_ip = params.get("ping_ip", "localhost")
    use_exist_iface = "yes" == params.get("use_exist_iface", "no")
    status_error = "yes" == params.get("status_error", "no")
    net_restart = "yes" == params.get("iface_net_restart", "no")
    list_dumpxml_acl = "yes" == params.get("list_dumpxml_acl", "no")
    if ping_ip.count("ENTER"):
        test.cancel("Please input a valid ip address")
    if iface_name.count("ENTER"):
        test.cancel("Please input a existing bridge/ethernet name")

    uri = params.get("virsh_uri")
    unprivileged_user = params.get('unprivileged_user', "EXAMPLE")
    if unprivileged_user:
        if unprivileged_user.count('EXAMPLE'):
            unprivileged_user = '******'

    if not libvirt_version.version_compare(1, 1, 1):
        if params.get('setup_libvirt_polkit') == 'yes':
            test.cancel("API acl test not supported in current"
                        " libvirt version.")

    virsh_dargs = {'debug': True}
    list_dumpxml_dargs = {'debug': True}
    if params.get('setup_libvirt_polkit') == 'yes':
        if not list_dumpxml_acl:
            virsh_dargs['uri'] = uri
            virsh_dargs['unprivileged_user'] = unprivileged_user
        else:
            list_dumpxml_dargs['uri'] = uri
            list_dumpxml_dargs['unprivileged_user'] = unprivileged_user
            list_dumpxml_dargs['ignore_status'] = False

    # acl api negative testing params
    write_save_status_error = "yes" == params.get("write_save_status_error",
                                                  "no")
    start_status_error = "yes" == params.get("start_status_error", "no")
    stop_status_error = "yes" == params.get("stop_status_error", "no")
    delete_status_error = "yes" == params.get("delete_status_error", "no")

    vm_name = params.get("main_vm")
    vm = env.get_vm(vm_name)
    if vm:
        xml_bak = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
    iface_script = NETWORK_SCRIPT + iface_name
    iface_script_bk = os.path.join(data_dir.get_tmp_dir(),
                                   "iface-%s.bk" % iface_name)
    net_bridge = utils_net.Bridge()
    if use_exist_iface:
        if iface_type == "bridge":
            if iface_name not in net_bridge.list_br():
                test.error("Bridge '%s' not exists" % iface_name)
            ifaces = net_bridge.get_structure()[iface_name]
            if len(ifaces) < 1:
                # In this situation, dhcp maybe cannot get ip address
                # Unless you use static, we'd better skip such case
                test.cancel("Bridge '%s' has no interface"
                            " bridged, perhaps cannot get"
                            " ipaddress" % iface_name)
    net_iface = utils_net.Interface(name=iface_name)
    iface_is_up = True
    list_option = "--all"
    if use_exist_iface:
        if not libvirt.check_iface(iface_name, "exists", "--all"):
            test.error("Interface '%s' not exists" % iface_name)
        iface_xml = os.path.join(data_dir.get_tmp_dir(), "iface.xml.tmp")
        iface_is_up = net_iface.is_up()
    else:
        # Note, if not use the interface which already exists, iface_name must
        # be equal to the value specified in XML file
        if libvirt.check_iface(iface_name, "exists", "--all"):
            test.error("Interface '%s' already exists" % iface_name)
        if not iface_xml:
            test.error("XML file is needed.")
        iface_xml = os.path.join(data_dir.get_tmp_dir(), iface_xml)
        create_xml_file(iface_xml, params)

    # Stop NetworkManager as which may conflict with virsh iface commands
    try:
        NM = utils_path.find_command("NetworkManager")
    except utils_path.CmdNotFoundError:
        logging.debug("No NetworkManager service.")
        NM = None
    NM_is_running = False
    if NM is not None:
        NM_service = service.Factory.create_service("NetworkManager")
        NM_is_running = NM_service.status()
        if NM_is_running:
            NM_service.stop()

    # run test cases
    try:
        if use_exist_iface:
            # back up the interface script
            process.run("cp %s %s" % (iface_script, iface_script_bk),
                        shell=True)
            # step 1.1
            # dumpxml for interface
            if list_dumpxml_acl:
                virsh.iface_list(**list_dumpxml_dargs)
            xml = virsh.iface_dumpxml(iface_name,
                                      "--inactive",
                                      to_file=iface_xml,
                                      **list_dumpxml_dargs)
            # Step 1.2
            # Destroy interface
            if iface_is_up:
                result = virsh.iface_destroy(iface_name, **virsh_dargs)
                if (params.get('setup_libvirt_polkit') == 'yes'
                        and stop_status_error):
                    # acl_test negative test
                    libvirt.check_exit_status(result, stop_status_error)
                    virsh.iface_destroy(iface_name, debug=True)
                else:
                    libvirt.check_exit_status(result, status_error)

            # Step 1.3
            # Undefine interface
            result = virsh.iface_undefine(iface_name, **virsh_dargs)
            if (params.get('setup_libvirt_polkit') == 'yes'
                    and delete_status_error):
                # acl_test negative test
                libvirt.check_exit_status(result, delete_status_error)
                virsh.iface_undefine(iface_name, debug=True)
            else:
                libvirt.check_exit_status(result, status_error)
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    test.fail("%s is still present." % iface_name)

        # Step 2
        # Define interface
        result = virsh.iface_define(iface_xml, **virsh_dargs)
        if (params.get('setup_libvirt_polkit') == 'yes'
                and write_save_status_error):
            # acl_test negative test
            libvirt.check_exit_status(result, write_save_status_error)
            virsh.iface_define(iface_xml, debug=True)
        elif iface_type == "bond" and not ping_ip:
            libvirt.check_exit_status(result, True)
            return
        else:
            libvirt.check_exit_status(result, status_error)

        if net_restart:
            network = service.Factory.create_service("network")
            network.restart()

        # After network restart, (ethernet)interface will be started
        if (not net_restart and iface_type in ("bridge", "ethernet")) or\
           (not use_exist_iface and iface_type in ("vlan", "bond")):
            # Step 3
            # List inactive interfaces
            list_option = "--inactive"
            if not status_error:
                if not libvirt.check_iface(iface_name, "exists", list_option):
                    test.fail("Fail to find %s." % iface_name)

            # Step 4
            # Start interface
            result = virsh.iface_start(iface_name, **virsh_dargs)
            if (params.get('setup_libvirt_polkit') == 'yes'
                    and start_status_error):
                # acl_test negative test
                libvirt.check_exit_status(result, start_status_error)
                virsh.iface_start(iface_name, debug=True)
            elif (not net_restart and not use_exist_iface
                  and (iface_type == "ethernet" and iface_pro in ["", "dhcp"]
                       or iface_type == "bridge" and iface_pro == "dhcp")):
                libvirt.check_exit_status(result, True)
            else:
                libvirt.check_exit_status(result, status_error)
            if not status_error:
                iface_ip = net_iface.get_ip()
                ping_ip = ping_ip if not iface_ip else iface_ip
                if ping_ip:
                    if not libvirt.check_iface(iface_name, "ping", ping_ip):
                        test.fail("Ping %s fail." % ping_ip)

        # Step 5
        # List active interfaces
        if use_exist_iface or\
           (iface_pro != "dhcp" and iface_type == "bridge") or\
           (iface_eth_using and iface_type == "vlan"):
            list_option = ""
            if not status_error:
                if not libvirt.check_iface(iface_name, "exists", list_option):
                    test.fail("Fail to find %s in active "
                              "interface list" % iface_name)
            if vm:
                if vm.is_alive():
                    vm.destroy()
                iface_index = 0
                iface_mac_list = vm_xml.VMXML.get_iface_dev(vm_name)
                # Before test, detach all interfaces in guest
                for mac in iface_mac_list:
                    iface_info = vm_xml.VMXML.get_iface_by_mac(vm_name, mac)
                    type = iface_info.get('type')
                    virsh.detach_interface(
                        vm_name, "--type %s --mac %s"
                        " --config" % (type, mac))
                    # After detach interface, vm.virtnet also need update, the
                    # easy way is free these mac addresses before start VM
                    vm.free_mac_address(iface_index)
                    iface_index += 1
                virsh.attach_interface(
                    vm_name, "--type %s --source %s"
                    " --config" % (iface_type, iface_name))
                vm.start()
                try:
                    # Test if guest can be login
                    vm.wait_for_login()
                except remote.LoginError:
                    test.fail("Cannot login guest with %s" % iface_name)

        # Step 6
        # Dumpxml for interface
        if list_dumpxml_acl:
            virsh.iface_list(**list_dumpxml_dargs)
        xml = virsh.iface_dumpxml(iface_name,
                                  "",
                                  to_file="",
                                  **list_dumpxml_dargs)
        logging.debug("Interface '%s' XML:\n%s", iface_name, xml)

        # Step 7
        # Get interface MAC address by name
        result = virsh.iface_mac(iface_name, debug=True)
        libvirt.check_exit_status(result, status_error)
        if not status_error and result.stdout.strip():
            if not libvirt.check_iface(iface_name, "mac",
                                       result.stdout.strip()):
                test.fail("Mac address check fail")

        # Step 8
        # Get interface name by MAC address
        # Bridge's Mac equal to bridged interface's mac
        if iface_type not in ("bridge", "vlan") and result.stdout.strip():
            iface_mac = net_iface.get_mac()
            result = virsh.iface_name(iface_mac, debug=True)
            libvirt.check_exit_status(result, status_error)

        # Step 9
        if not use_exist_iface:
            # Step 9.0
            # check if interface's state is active before destroy
            if libvirt.check_iface(iface_name, "state", "--all"):
                # Step 9.1
                # Destroy interface
                result = virsh.iface_destroy(iface_name, **virsh_dargs)
                if (params.get('setup_libvirt_polkit') == 'yes'
                        and stop_status_error):
                    # acl_test negative test
                    libvirt.check_exit_status(result, stop_status_error)
                    virsh.iface_destroy(iface_name, debug=True)
                elif (not net_restart and iface_type == "ethernet"
                      and iface_pro in ["", "dhcp"]
                      or iface_type == "bridge" and iface_pro == "dhcp"):
                    libvirt.check_exit_status(result, True)
                else:
                    libvirt.check_exit_status(result, status_error)

            # Step 9.2
            # Undefine interface
            result = virsh.iface_undefine(iface_name, **virsh_dargs)
            if (params.get('setup_libvirt_polkit') == 'yes'
                    and delete_status_error):
                # acl_test negative test
                libvirt.check_exit_status(result, delete_status_error)
                virsh.iface_undefine(iface_name, debug=True)
            else:
                libvirt.check_exit_status(result, status_error)
            list_option = "--all"
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    test.fail("%s is still present." % iface_name)
    finally:
        if os.path.exists(iface_xml):
            os.remove(iface_xml)
        if os.path.exists(iface_script):
            os.remove(iface_script)

        if use_exist_iface:
            if not os.path.exists(iface_script):
                process.run("mv %s %s" % (iface_script_bk, iface_script),
                            shell=True)
            if iface_is_up and\
               not libvirt.check_iface(iface_name, "exists", ""):
                # Need reload script
                process.run("ifup %s" % iface_name, shell=True)
            elif not iface_is_up and libvirt.check_iface(
                    iface_name, "exists", ""):
                net_iface.down()
            if vm:
                xml_bak.sync()
        else:
            if libvirt.check_iface(iface_name, "exists", "--all"):
                # Remove the interface
                try:
                    utils_net.bring_down_ifname(iface_name)
                except utils_net.TAPBringDownError:
                    pass
            if iface_type == "bridge":
                if iface_name in net_bridge.list_br():
                    try:
                        net_bridge.del_bridge(iface_name)
                    except IOError:
                        pass
        if NM_is_running:
            NM_service.start()
Exemple #6
0
def run(test, params, env):
    """
    Test virsh interface related commands.

    (1) If using given exist interface for testing(eg. lo or ethX):
        1.1 Dumpxml for the interface(with --inactive option)
        1.2 Destroy the interface
        1.3 Undefine the interface
    (2) Define an interface from XML file
    (3) List interfaces with '--inactive' optioin
    (4) Start the interface
    (5) List interfaces with no option
    (6) Dumpxml for the interface
    (7) Get interface MAC address by interface name
    (8) Get interface name by interface MAC address
    (9) Delete interface if not use the exist interface for testing
        9.1 Destroy the interface
        9.2 Undefine the interface

    Caveat, this test may affect the host network, so using the loopback(lo)
    device by default. You can specify the interface which you want, but be
    careful.
    """

    iface_name = params.get("iface_name")
    iface_xml = params.get("iface_xml")
    ping_ip = params.get("ping_ip", "localhost")
    use_exist_iface = "yes" == params.get("use_exist_iface", "no")
    status_error = "yes" == params.get("status_error", "no")
    iface_script = NETWORK_SCRIPT + iface_name
    iface_script_bk = os.path.join(test.tmpdir, "iface-%s.bk" % iface_name)
    net_iface = utils_net.Interface(name=iface_name)
    iface_is_up = True
    list_option = "--all"
    if use_exist_iface:
        if not libvirt.check_iface(iface_name, "exists", "--all"):
            raise error.TestError("Interface '%s' not exists" % iface_name)
        iface_xml = os.path.join(test.tmpdir, "iface.xml.tmp")
        iface_is_up = net_iface.is_up()
    else:
        # Note, if not use the interface which already exists, iface_name must
        # be equal to the value specified in XML file
        if libvirt.check_iface(iface_name, "exists", "--all"):
            raise error.TestError("Interface '%s' already exists" % iface_name)
        if not iface_xml:
            raise error.TestError("XML file is needed.")

    # Stop NetworkManager as which may conflict with virsh iface commands
    try:
        NM = utils_misc.find_command("NetworkManager")
    except ValueError:
        logging.debug("No NetworkManager service.")
        NM = None
    NM_is_running = False
    if NM is not None:
        NM_service = service.Factory.create_service("NetworkManager")
        NM_is_running = NM_service.status()
        if NM_is_running:
            NM_service.stop()

    # run test cases
    try:
        if use_exist_iface:
            # back up the interface script
            utils.run("cp %s %s" % (iface_script, iface_script_bk))
            # step 1.1
            # dumpxml for interface
            xml = virsh.iface_dumpxml(iface_name,
                                      "--inactive",
                                      to_file=iface_xml,
                                      debug=True)
            # Step 1.2
            # Destroy interface
            if iface_is_up:
                result = virsh.iface_destroy(iface_name, debug=True)
                libvirt.check_exit_status(result, status_error)

            # Step 1.3
            # Undefine interface
            result = virsh.iface_undefine(iface_name, debug=True)
            libvirt.check_exit_status(result, status_error)
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("%s is still present." % iface_name)

        # Step 2
        # Define interface
        result = virsh.iface_define(iface_xml, debug=True)
        libvirt.check_exit_status(result, status_error)

        # Step 3
        # List inactive interfaces
        list_option = "--inactive"
        if not status_error:
            if not libvirt.check_iface(iface_name, "exists", list_option):
                raise error.TestFail("Fail to find %s." % iface_name)

        # Step 4
        # Start interface
        result = virsh.iface_start(iface_name, debug=True)
        libvirt.check_exit_status(result, status_error)
        if not status_error:
            if not libvirt.check_iface(iface_name, "ping", ping_ip):
                raise error.TestFail("Ping %s fail." % ping_ip)

        # Step 5
        # List active interfaces
        list_option = ""
        if not status_error:
            if not libvirt.check_iface(iface_name, "exists", list_option):
                raise error.TestFail(
                    "Fail to find %s in active interface list." % iface_name)

        # Step 6
        # Dumpxml for interface
        xml = virsh.iface_dumpxml(iface_name, "", to_file="", debug=True)
        logging.debug("Interface '%s' XML:\n%s", iface_name, xml)

        # Step 7
        # Get interface MAC address by name
        result = virsh.iface_mac(iface_name, debug=True)
        libvirt.check_exit_status(result, status_error)
        if not status_error:
            if not libvirt.check_iface(iface_name, "mac",
                                       result.stdout.strip()):
                raise error.TestFail("Mac address check fail")

        # Step 8
        # Get interface name by MAC address
        iface_mac = net_iface.get_mac()
        result = virsh.iface_name(iface_mac, debug=True)
        libvirt.check_exit_status(result, status_error)

        # Step 9
        if not use_exist_iface:
            # Step 9.1
            # Destroy interface
            result = virsh.iface_destroy(iface_name, debug=True)
            libvirt.check_exit_status(result, status_error)

            # Step 9.2
            # Undefine interface
            result = virsh.iface_undefine(iface_name, debug=True)
            libvirt.check_exit_status(result, status_error)
            list_option = "--all"
            if not status_error:
                if libvirt.check_iface(iface_name, "exists", list_option):
                    raise error.TestFail("%s is still present." % iface_name)
    finally:
        if use_exist_iface:
            if os.path.exists(iface_xml):
                os.remove(iface_xml)
            if not os.path.exists(iface_script):
                utils.run("mv %s %s" % (iface_script_bk, iface_script))
            if iface_is_up:
                # Need reload script
                utils.run("ifup %s" % iface_name)
            else:
                net_iface.down()
        else:
            if libvirt.check_iface(iface_name, "exists", "--all"):
                # Remove the interface
                if os.path.exists(iface_script):
                    os.remove(iface_script)
                utils_net.bring_down_ifname(iface_name)
        if NM_is_running:
            NM_service.start()