def removeBond(self, bonding):
if not self.owned_device(bonding.name):
IfcfgAcquire.acquire_device(bonding.name)
to_be_removed = self._ifaceDownAndCleanup(bonding)
if to_be_removed:
self.configApplier.removeBonding(bonding.name)
if bonding.on_removal_just_detach_from_network:
# Recreate the bond with ip and master info cleared
bonding.ipv4 = address.IPv4()
bonding.ipv6 = address.IPv6()
bonding.master = None
bonding.configure()
else:
for slave in bonding.slaves:
slave.remove()
self.runningConfig.removeBonding(bonding.name)
else:
vlans = link_vlan.get_vlans_on_base_device(bonding.name)
set_mtu = self._setNewMtu(bonding, vlans)
# Since we are not taking the device up again, ifcfg will not be
# read at this point and we need to set the live mtu value.
# Note that ip link set dev bondX mtu Y sets Y on all its links
if set_mtu is not None:
ipwrapper.linkSet(bonding.name, ['mtu', str(set_mtu)])
# If the bond was bridged, we must remove BRIDGE parameter from its
# ifcfg configuration file.
if bonding.bridge:
self.configApplier.dropBridgeParameter(bonding.name)
bond_used_by_net = self.net_info.getNetworkForIface(bonding.name)
bond_info = self.net_info.bondings[bonding.name]
if not bond_used_by_net and (bond_info['ipv4addrs']
or bond_info['ipv6addrs']):
ipwrapper.addrFlush(bonding.name)
def removeBond(self, bonding):
if not self.owned_device(bonding.name):
IfcfgAcquire.acquire_device(bonding.name)
to_be_removed = self._ifaceDownAndCleanup(bonding)
if to_be_removed:
self.configApplier.removeBonding(bonding.name)
if bonding.on_removal_just_detach_from_network:
# Recreate the bond with ip and master info cleared
bonding.ipv4 = address.IPv4()
bonding.ipv6 = address.IPv6()
bonding.master = None
bonding.configure()
else:
for slave in bonding.slaves:
slave.remove()
self.runningConfig.removeBonding(bonding.name)
else:
vlans = link_vlan.get_vlans_on_base_device(bonding.name)
set_mtu = self._setNewMtu(bonding, vlans)
# Since we are not taking the device up again, ifcfg will not be
# read at this point and we need to set the live mtu value.
# Note that ip link set dev bondX mtu Y sets Y on all its links
if set_mtu is not None:
ipwrapper.linkSet(bonding.name, ['mtu', str(set_mtu)])
# If the bond was bridged, we must remove BRIDGE parameter from its
# ifcfg configuration file.
if bonding.bridge:
self.configApplier.dropBridgeParameter(bonding.name)
bond_used_by_net = self.net_info.getNetworkForIface(bonding.name)
bond_info = self.net_info.bondings[bonding.name]
if (not bond_used_by_net and
(bond_info['ipv4addrs'] or bond_info['ipv6addrs'])):
ipwrapper.addrFlush(bonding.name)
def kill_dhclient(device_name, family=4):
for pid in pgrep('dhclient'):
try:
with open('/proc/%s/cmdline' % pid) as cmdline:
args = cmdline.read().strip('\0').split('\0')
except IOError as ioe:
if ioe.errno == errno.ENOENT: # exited before we read cmdline
continue
if args[-1] != device_name: # dhclient of another device
continue
tokens = iter(args)
pid_file = '/var/run/dhclient.pid' # Default client pid location
running_family = 4
for token in tokens:
if token == '-pf':
pid_file = next(tokens)
elif token == '--no-pid':
pid_file = None
elif token == '-6':
running_family = 6
if running_family != family:
continue
logging.info('Stopping dhclient -%s before running our own on %s',
family, device_name)
kill_and_rm_pid(pid, pid_file)
# In order to be able to configure the device with dhclient again. It is
# necessary that dhclient does not find it configured with any IP address
# (except 0.0.0.0 which is fine, or IPv6 link-local address needed for
# DHCPv6).
ipwrapper.addrFlush(device_name, family)
def kill_dhclient(device_name, family=4):
for pid in pgrep('dhclient'):
try:
with open('/proc/%s/cmdline' % pid) as cmdline:
args = cmdline.read().strip('\0').split('\0')
except IOError as ioe:
if ioe.errno == errno.ENOENT: # exited before we read cmdline
continue
if args[-1] != device_name: # dhclient of another device
continue
tokens = iter(args)
pid_file = '/var/run/dhclient.pid' # Default client pid location
running_family = 4
for token in tokens:
if token == '-pf':
pid_file = next(tokens)
elif token == '--no-pid':
pid_file = None
elif token == '-6':
running_family = 6
if running_family != family:
continue
logging.info('Stopping dhclient -%s before running our own on %s',
family, device_name)
kill_and_rm_pid(pid, pid_file)
# In order to be able to configure the device with dhclient again. It is
# necessary that dhclient does not find it configured with any IP address
# (except 0.0.0.0 which is fine, or IPv6 link-local address needed for
# DHCPv6).
ipwrapper.addrFlush(device_name, family)
def test_routes_device_to(self, ip_addr, ip_netmask, nic0):
addr_in_net = ipaddress.ip_address(ip_addr) + 1
ip_version = addr_in_net.version
ipwrapper.addrAdd(nic0, ip_addr, ip_netmask, family=ip_version)
try:
ipwrapper.linkSet(nic0, ['up'])
assert routes.getRouteDeviceTo(str(addr_in_net)) == nic0
finally:
ipwrapper.addrFlush(nic0, ip_version)
def _remove_network_ip_config(ip_config):
"""Remove IP configuration from Vdsm controlled OVS network"""
iface = ip_config.top_dev
ipv4 = ip_config.ipv4
ipv6 = ip_config.ipv6
net_dev = NetDevice(iface, iproute2, ipv4=ipv4, ipv6=ipv6)
DynamicSourceRoute.addInterfaceTracking(net_dev)
DhcpClient(iface).shutdown()
iproute2._removeSourceRoute(net_dev, DynamicSourceRoute)
if ipv4.address or ipv6.address:
with suppress(ipwrapper.IPRoute2Error): # device does not exist
ipwrapper.addrFlush(iface)
def testGetRouteDeviceTo(self):
with dummyIf(1) as nics:
nic, = nics
addrAdd(nic, IP_ADDRESS, IP_CIDR)
try:
linkSet(nic, ['up'])
self.assertEqual(getRouteDeviceTo(IP_ADDRESS_IN_NETWORK), nic)
finally:
addrFlush(nic)
sysctl.disable_ipv6(nic, False)
addrAdd(nic, IPv6_ADDRESS, IPv6_CIDR, family=6)
try:
linkSet(nic, ['up'])
self.assertEqual(getRouteDeviceTo(IPv6_ADDRESS_IN_NETWORK),
nic)
finally:
addrFlush(nic)
def flush(iface, family='both'):
ipwrapper.addrFlush(iface, family)
def removeIpConfig(self, iface):
ipwrapper.addrFlush(iface.name)
def flush(iface, family='both'):
ipwrapper.addrFlush(iface, family)
