Example #1
0
def _validateNetworkSetup(networks, bondings):
    for network, networkAttrs in networks.iteritems():
        if networkAttrs.get('remove', False):
            if set(networkAttrs) - set(['remove']):
                raise ConfigNetworkError(ne.ERR_BAD_PARAMS, 'Cannot specify '
                                         'any attribute when removing')

    currentBondings = netinfo.bondings()
    currentNicsSet = set(netinfo.nics())
    for bonding, bondingAttrs in bondings.iteritems():
        Bond.validateName(bonding)
        if 'options' in bondingAttrs:
            Bond.validateOptions(bonding, bondingAttrs['options'])

        if bondingAttrs.get('remove', False):
            if bonding not in currentBondings:
                raise ConfigNetworkError(ne.ERR_BAD_BONDING, "Cannot remove "
                                         "bonding %s: Doesn't exist" % bonding)
            continue

        nics = bondingAttrs.get('nics', None)
        if not nics:
            raise ConfigNetworkError(ne.ERR_BAD_PARAMS,
                                     "Must specify nics for bonding")
        if not set(nics).issubset(currentNicsSet):
            raise ConfigNetworkError(ne.ERR_BAD_NIC,
                                     "Unknown nics in: %r" % list(nics))
Example #2
0
def _handleBondings(bondings, configurator):
    """ Add/Edit/Remove bond interface """
    logger = logging.getLogger("_handleBondings")

    _netinfo = netinfo.NetInfo()

    edition = []
    addition = []
    for name, attrs in bondings.items():
        if 'remove' in attrs:
            bond = Bond.objectivize(name, configurator, attrs.get('options'),
                                    attrs.get('nics'), mtu=None,
                                    _netinfo=_netinfo,
                                    destroyOnMasterRemoval='remove' in attrs)
            bond.remove()
            del _netinfo.bondings[name]
        elif name in _netinfo.bondings:
            edition.append((name, attrs))
        else:
            addition.append((name, attrs))

    for name, attrs in edition:
        bond = Bond.objectivize(name, configurator, attrs.get('options'),
                                attrs.get('nics'), mtu=None, _netinfo=_netinfo,
                                destroyOnMasterRemoval='remove' in attrs)
        logger.debug("Editing bond %r with options %s", bond, bond.options)
        configurator.editBonding(bond, _netinfo)
    for name, attrs in addition:
        bond = Bond.objectivize(name, configurator, attrs.get('options'),
                                attrs.get('nics'), mtu=None, _netinfo=_netinfo,
                                destroyOnMasterRemoval='remove' in attrs)
        logger.debug("Creating bond %r with options %s", bond, bond.options)
        configurator.configureBond(bond)
Example #3
0
def _validateNetworkSetup(networks, bondings):
    _netinfo = netinfo.NetInfo()

    for network, networkAttrs in networks.iteritems():
        if networkAttrs.get('remove', False):
            if set(networkAttrs) - set(['remove']):
                raise ConfigNetworkError(
                    ne.ERR_BAD_PARAMS, 'Cannot specify '
                    'any attribute when removing')

    for bonding, bondingAttrs in bondings.iteritems():
        Bond.validateName(bonding)
        if 'options' in bondingAttrs:
            Bond.validateOptions(bonding, bondingAttrs['options'])

        if bondingAttrs.get('remove', False):
            if bonding not in _netinfo.bondings:
                raise ConfigNetworkError(
                    ne.ERR_BAD_BONDING, "Cannot remove "
                    "bonding %s: Doesn't exist" % bonding)
            continue

        nics = bondingAttrs.get('nics', None)
        if not nics:
            raise ConfigNetworkError(ne.ERR_BAD_PARAMS,
                                     "Must specify nics for bonding")
        if not set(nics).issubset(set(_netinfo.nics)):
            raise ConfigNetworkError(ne.ERR_BAD_NIC,
                                     "Unknown nics in: %r" % list(nics))
Example #4
0
    def testValidateBondingOptions(self):
        if not os.path.exists(netinfo.BONDING_MASTERS):
            raise SkipTest("bonding kernel module could not be found.")

        opts = 'mode=802.3ad miimon=150'
        badOpts = 'foo=bar badopt=one'

        with self.assertRaises(neterrors.ConfigNetworkError) as cne:
            Bond.validateOptions('bond0', badOpts)
        self.assertEqual(cne.exception.errCode, neterrors.ERR_BAD_BONDING)
        self.assertEqual(Bond.validateOptions('bond0', opts), None)
Example #5
0
    def testValidateBondingOptions(self):
        if not os.path.exists(netinfo.BONDING_MASTERS):
            raise SkipTest("bonding kernel module could not be found.")

        opts = 'mode=802.3ad miimon=150'
        badOpts = 'foo=bar badopt=one'

        with self.assertRaises(neterrors.ConfigNetworkError) as cne:
            Bond.validateOptions('bond0', badOpts)
        self.assertEqual(cne.exception.errCode, neterrors.ERR_BAD_BONDING)
        self.assertEqual(Bond.validateOptions('bond0', opts), None)
Example #6
0
    def testIsBondingNameValid(self):
        bondNames = ('badValue', ' bond14', 'bond14 ', 'bond14a', 'bond0 0')

        for bondName in bondNames:
            with self.assertRaises(neterrors.ConfigNetworkError) \
                    as cneContext:
                Bond.validateName(bondName)
            self.assertEqual(cneContext.exception.errCode,
                             neterrors.ERR_BAD_BONDING)

        self.assertEqual(Bond.validateName('bond11'), None)
        self.assertEqual(Bond.validateName('bond11128421982'), None)
Example #7
0
    def testIsBondingNameValid(self):
        bondNames = ('badValue', ' bond14', 'bond14 ', 'bond14a', 'bond0 0')

        for bondName in bondNames:
            with self.assertRaises(neterrors.ConfigNetworkError) \
                    as cneContext:
                Bond.validateName(bondName)
            self.assertEqual(cneContext.exception.errCode,
                             neterrors.ERR_BAD_BONDING)

        self.assertEqual(Bond.validateName('bond11'), None)
        self.assertEqual(Bond.validateName('bond11128421982'), None)
Example #8
0
def _handleBondings(bondings, configurator):
    """ Add/Edit/Remove bond interface """
    logger = logging.getLogger("_handleBondings")

    _netinfo = netinfo.NetInfo()

    for bondName, bondAttrs in bondings.items():
        bond = Bond.objectivize(bondName,
                                configurator,
                                bondAttrs.get('options'),
                                bondAttrs.get('nics'),
                                mtu=None,
                                _netinfo=_netinfo,
                                destroyOnMasterRemoval='remove' in bondAttrs)
        if 'remove' in bondAttrs:
            logger.debug("Removing bond %s with attributes %s", bondName,
                         bondAttrs)
            configurator.removeBond(bond)
            del bondings[bondName]
            del _netinfo.bondings[bondName]
        elif bondName in _netinfo.bondings:
            logger.debug("Editing bond %s with attributes %s", bondName,
                         bondAttrs)
            configurator.editBonding(bond, _netinfo)
        else:
            logger.debug("Creating bond %s with attributes %s", bondName,
                         bondAttrs)
            configurator.configureBond(bond)
def _handleBondings(bondings, configurator):
    """ Add/Edit/Remove bond interface """
    logger = logging.getLogger("_handleBondings")

    _netinfo = netinfo.NetInfo()

    for bondName, bondAttrs in bondings.items():
        bond = Bond.objectivize(bondName, configurator,
                                bondAttrs.get('options'),
                                bondAttrs.get('nics'), mtu=None,
                                _netinfo=_netinfo,
                                destroyOnMasterRemoval='remove' in bondAttrs)
        if 'remove' in bondAttrs:
            logger.debug("Removing bond %s with attributes %s", bondName,
                         bondAttrs)
            configurator.removeBond(bond)
            del bondings[bondName]
            del _netinfo.bondings[bondName]
        elif bondName in _netinfo.bondings:
            logger.debug("Editing bond %s with attributes %s", bondName,
                         bondAttrs)
            configurator.editBonding(bond, _netinfo)
        else:
            logger.debug("Creating bond %s with attributes %s", bondName,
                         bondAttrs)
            configurator.configureBond(bond)
Example #10
0
 def testTextualRepr(self):
     _netinfo = {
         'networks': {},
         'vlans': {},
         'nics': ['testnic1', 'testnic2'],
         'bondings': {}
     }
     fakeInfo = netinfo.NetInfo(_netinfo)
     nic1 = Nic('testnic1', None, _netinfo=fakeInfo)
     nic2 = Nic('testnic2', None, _netinfo=fakeInfo)
     bond1 = Bond('bond42', None, slaves=(nic1, nic2))
     vlan1 = Vlan(bond1, '4', None)
     bridge1 = Bridge('testbridge', None, port=vlan1)
     self.assertEqual(
         '%r' % bridge1, 'Bridge(testbridge: Vlan(bond42.4: '
         'Bond(bond42: (Nic(testnic1), Nic(testnic2)))))')
Example #11
0
def objectivizeNetwork(bridge=None, vlan=None, bonding=None,
                       bondingOptions=None, nics=None, mtu=None, ipaddr=None,
                       netmask=None, gateway=None, bootproto=None,
                       ipv6addr=None, ipv6gateway=None, ipv6autoconf=None,
                       dhcpv6=None, defaultRoute=None, _netinfo=None,
                       configurator=None, blockingdhcp=None,
                       implicitBonding=None, **opts):
    """
    Constructs an object hierarchy that describes the network configuration
    that is passed in the parameters.

    :param bridge: name of the bridge.
    :param vlan: vlan tag id.
    :param bonding: name of the bond.
    :param bondingOptions: bonding options separated by spaces.
    :param nics: list of nic names.
    :param mtu: the desired network maximum transmission unit.
    :param ipaddr: IPv4 address in dotted decimal format.
    :param netmask: IPv4 mask in dotted decimal format.
    :param gateway: IPv4 address in dotted decimal format.
    :param bootproto: protocol for getting IP config for the net, e.g., 'dhcp'
    :param ipv6addr: IPv6 address in format address[/prefixlen].
    :param ipv6gateway: IPv6 address in format address[/prefixlen].
    :param ipv6autoconf: whether to use IPv6's stateless autoconfiguration.
    :param dhcpv6: whether to use DHCPv6.
    :param _netinfo: network information snapshot.
    :param configurator: instance to use to apply the network configuration.
    :param blockingdhcp: whether to acquire dhcp IP config in a synced manner.
    :param implicitBonding: whether the bond's existance is tied to it's
                            master's.
    :param defaultRoute: Should this network's gateway be set in the main
                         routing table?

    :returns: the top object of the hierarchy.
    """
    if configurator is None:
        configurator = ConfiguratorClass()
    if _netinfo is None:
        _netinfo = netinfo.NetInfo()
    if bondingOptions and not bonding:
        raise ConfigNetworkError(ne.ERR_BAD_BONDING, 'Bonding options '
                                 'specified without bonding')
    topNetDev = None
    if bonding:
        topNetDev = Bond.objectivize(bonding, configurator, bondingOptions,
                                     nics, mtu, _netinfo, implicitBonding)
    elif nics:
        try:
            nic, = nics
        except ValueError:
            raise ConfigNetworkError(ne.ERR_BAD_BONDING, 'Multiple nics '
                                     'require a bonding device')
        else:
            bond = _netinfo.getBondingForNic(nic)
            if bond:
                raise ConfigNetworkError(ne.ERR_USED_NIC, 'nic %s already '
                                         'enslaved to %s' % (nic, bond))
            topNetDev = Nic(nic, configurator, mtu=mtu, _netinfo=_netinfo)
    if vlan is not None:
        topNetDev = Vlan(topNetDev, vlan, configurator, mtu=mtu)
    if bridge:
        topNetDev = Bridge(bridge, configurator, port=topNetDev, mtu=mtu,
                           stp=opts.get('stp'))
    if topNetDev is None:
        raise ConfigNetworkError(ne.ERR_BAD_PARAMS, 'Network defined without '
                                 'devices.')
    ipv6 = IPv6(ipv6addr, ipv6gateway, defaultRoute)
    ipv4 = IPv4(ipaddr, netmask, gateway, defaultRoute)
    topNetDev.ip = IpConfig(inet4=ipv4, inet6=ipv6, bootproto=bootproto,
                            blocking=utils.tobool(blockingdhcp),
                            ipv6autoconf=ipv6autoconf, dhcpv6=dhcpv6)
    return topNetDev
Example #12
0
def objectivizeNetwork(bridge=None,
                       vlan=None,
                       bonding=None,
                       bondingOptions=None,
                       nics=None,
                       mtu=None,
                       ipaddr=None,
                       netmask=None,
                       gateway=None,
                       bootproto=None,
                       _netinfo=None,
                       configurator=None,
                       blockingdhcp=None,
                       implicitBonding=None,
                       defaultRoute=None,
                       **opts):
    """
    Constructs an object hierarchy that describes the network configuration
    that is passed in the parameters.

    :param bridge: name of the bridge.
    :param vlan: vlan tag id.
    :param bonding: name of the bond.
    :param bondingOptions: bonding options separated by spaces.
    :param nics: list of nic names.
    :param mtu: the desired network maximum transmission unit.
    :param ipaddr: IPv4 address in dotted decimal format.
    :param netmask: IPv4 mask in dotted decimal format.
    :param gateway: IPv4 address in dotted decimal format.
    :param bootproto: protocol for getting IP config for the net, e.g., 'dhcp'
    :param _netinfo: network information snapshot.
    :param configurator: instance to use to apply the network configuration.
    :param blockingdhcp: whether to acquire dhcp IP config in a synced manner.
    :param implicitBonding: whether the bond's existance is tied to it's
                            master's.
    :param defaultRoute: Should this network's gateway be set in the main
                         routing table?

    :returns: the top object of the hierarchy.
    """
    if configurator is None:
        configurator = Ifcfg()
    if _netinfo is None:
        _netinfo = netinfo.NetInfo()
    if bondingOptions and not bonding:
        raise ConfigNetworkError(
            ne.ERR_BAD_BONDING, 'Bonding options '
            'specified without bonding')
    topNetDev = None
    if bonding:
        topNetDev = Bond.objectivize(bonding, configurator, bondingOptions,
                                     nics, mtu, _netinfo, implicitBonding)
    elif nics:
        try:
            nic, = nics
        except ValueError:
            raise ConfigNetworkError(
                ne.ERR_BAD_BONDING, 'Multiple nics '
                'require a bonding device')
        else:
            bond = _netinfo.getBondingForNic(nic)
            if bond:
                raise ConfigNetworkError(
                    ne.ERR_USED_NIC, 'nic %s already '
                    'enslaved to %s' % (nic, bond))
            topNetDev = Nic(nic, configurator, mtu=mtu, _netinfo=_netinfo)
    if vlan:
        topNetDev = Vlan(topNetDev, vlan, configurator, mtu=mtu)
    if bridge:
        topNetDev = Bridge(bridge,
                           configurator,
                           port=topNetDev,
                           mtu=mtu,
                           stp=opts.get('stp'),
                           forwardDelay=int(opts.get('forward_delay', 0)))
    if topNetDev is None:
        raise ConfigNetworkError(ne.ERR_BAD_PARAMS, 'Network defined without'
                                 'devices.')
    topNetDev.ip = IpConfig(inet=IPv4(ipaddr, netmask, gateway, defaultRoute),
                            bootproto=bootproto,
                            blocking=utils.tobool(blockingdhcp))
    return topNetDev
Example #13
0
def objectivizeNetwork(bridge=None, vlan=None, bonding=None,
                       bondingOptions=None, nics=None, mtu=None, ipaddr=None,
                       netmask=None, gateway=None, bootproto=None,
                       _netinfo=None, configurator=None, blockingdhcp=None,
                       **opts):
    """
    Constructs an object hierarchy that describes the network configuration
    that is passed in the parameters.

    :param bridge: name of the bridge.
    :param vlan: vlan tag id.
    :param bonding: name of the bond.
    :param bondingOptions: bonding options separated by spaces.
    :param nics: list of nic names.
    :param mtu: the desired network maximum transmission unit.
    :param ipaddr: IPv4 address in dotted decimal format.
    :param netmask: IPv4 mask in dotted decimal format.
    :param gateway: IPv4 address in dotted decimal format.
    :param bootproto: protocol for getting IP config for the net, e.g., 'dchp'
    :param _netinfo: network information snapshot.
    :param configurator: instance to use to apply the network configuration.
    :param blockingdhcp: whether to acquire dhcp IP config in a synced manner.

    :returns: the top object of the hierarchy.
    """
    if configurator is None:
        configurator = Ifcfg()
    if _netinfo is None:
        _netinfo = netinfo.NetInfo()
    if bondingOptions and not bonding:
        raise ConfigNetworkError(ne.ERR_BAD_BONDING, 'Bonding options '
                                 'specified without bonding')
    topNetDev = None
    if bonding:
        topNetDev = Bond.objectivize(bonding, configurator, bondingOptions,
                                     nics, mtu, _netinfo)
    elif nics:
        try:
            nic, = nics
        except ValueError:
            raise ConfigNetworkError(ne.ERR_BAD_BONDING, 'Multiple nics '
                                     'require a bonding device')
        else:
            bond = _netinfo.getBondingForNic(nic)
            if bond:
                raise ConfigNetworkError(ne.ERR_USED_NIC, 'nic %s already '
                                         'enslaved to %s' % (nic, bond))
            topNetDev = Nic(nic, configurator, mtu=mtu, _netinfo=_netinfo)
    if vlan:
        topNetDev = Vlan(topNetDev, vlan, configurator, mtu=mtu)
    if bridge:
        topNetDev = Bridge(bridge, configurator, port=topNetDev, mtu=mtu,
                           stp=opts.get('stp'),
                           forwardDelay=opts.get('forward_delay', 0))
    if topNetDev is None:
        raise ConfigNetworkError(ne.ERR_BAD_PARAMS, 'Network defined without'
                                 'devices.')
    topNetDev.ip = IpConfig(inet=IPv4(ipaddr, netmask, gateway),
                            bootproto=bootproto,
                            blocking=utils.tobool(blockingdhcp))
    return topNetDev
Example #14
0
def delNetwork(network, vlan=None, bonding=None, nics=None, force=False,
               configWriter=None, implicitBonding=True, _netinfo=None,
               **options):
    if _netinfo is None:
        _netinfo = netinfo.NetInfo()

    if configWriter is None:
        configWriter = ConfigWriter()

    if network not in _netinfo.networks:
        logging.info("Network %r: doesn't exist in libvirt database", network)
        if network in netinfo.bridges():
            configWriter.removeBridge(network)
        else:
            raise ConfigNetworkError(ne.ERR_BAD_BRIDGE, "Cannot delete network"
                                     " %r: It doesn't exist in the system" %
                                     network)

        if vlan:
            configWriter.removeVlan(vlan, bonding or nics[0])

        return

    nics, vlan, bonding = _netinfo.getNicsVlanAndBondingForNetwork(network)
    bridged = _netinfo.networks[network]['bridged']

    logging.info("Removing network %s with vlan=%s, bonding=%s, nics=%s,"
                 "options=%s" % (network, vlan, bonding, nics, options))

    if not utils.tobool(force):
        if bonding:
            Bond.validateName(bonding)
            if set(nics) != set(_netinfo.bondings[bonding]["slaves"]):
                raise ConfigNetworkError(ne.ERR_BAD_NIC, 'delNetwork: %s are '
                                         'not all nics enslaved to %s' %
                                         (nics, bonding))
        if vlan:
            Vlan.validateTag(vlan)
        if bridged:
            assertBridgeClean(network, vlan, bonding, nics)

    configWriter.setNewMtu(network=network, bridged=bridged, _netinfo=_netinfo)
    configWriter.removeLibvirtNetwork(network)

    # We need to gather NetInfo again to refresh networks info from libvirt.
    # The deleted bridge should never be up at this stage.
    _netinfo = netinfo.NetInfo()
    if network in _netinfo.networks:
        raise ConfigNetworkError(ne.ERR_USED_BRIDGE, 'delNetwork: bridge %s '
                                 'still exists' % network)

    if network and bridged:
        configWriter.removeBridge(network)

    nic = nics[0] if nics else None
    iface = bonding if bonding else nic
    if iface:
        ifdown(iface)
        if vlan:
            configWriter.removeVlan(vlan, iface)
        else:
            cf = netinfo.NET_CONF_PREF + iface
            if not bridged:
                # When removing bridgeless non-VLANed network
                # we need to remove IP/NETMASK from the cfg file
                for key in ('IPADDR', 'NETMASK', 'GATEWAY', 'BOOTPROTO'):
                    configWriter._updateConfigValue(cf, key, '', True)
            else:
                # When removing bridged non-VLANed network
                # we need to remove BRIDGE from the cfg file
                configWriter._updateConfigValue(cf, 'BRIDGE', '', True)

        # Now we can restart changed interface
        ifup(iface)

    # The (relatively) new setupNetwork verb allows to remove a network
    # defined on top of an bonding device without break the bond itself.
    _netinfo = netinfo.NetInfo()
    if implicitBonding:
        if bonding and not _netinfo.ifaceUsers(bonding):
            ifdown(bonding)
            configWriter.removeBonding(bonding)

        _removeUnusedNics(network, vlan, bonding, nics, configWriter)
    elif not bonding:
        _removeUnusedNics(network, vlan, bonding, nics, configWriter)
    elif not _netinfo.ifaceUsers(bonding):
        ifdown(bonding)
        configWriter.setBondingMtu(bonding, DEFAULT_MTU)
        ifup(bonding)