def _update_ips_for_pd_subnet(self,
context,
subnets,
fixed_ips,
mac_address=None):
fixed_ip_list = []
subnet_set = {
fixed['subnet_id']
for fixed in fixed_ips if 'subnet_id' in fixed
}
pd_subnets = [
s for s in subnets
if (s['id'] in subnet_set and ipv6_utils.is_ipv6_pd_enabled(s))
]
for subnet in pd_subnets:
# Already checked subnet validity in _get_subnet_for_fixed_ip
if mac_address:
fixed_ip_list.append({
'subnet_id': subnet['id'],
'subnet_cidr': subnet['cidr'],
'eui64_address': True,
'mac': mac_address
})
else:
fixed_ip_list.append({'subnet_id': subnet['id']})
return fixed_ip_list
def get_assigned_pd_interfaces(router):
pd_intfs = []
for intf in router[lib_constants.INTERFACE_KEY]:
for subnet in intf['subnets']:
if (ipv6_utils.is_ipv6_pd_enabled(subnet) and subnet['cidr'] !=
lib_constants.PROVISIONAL_IPV6_PD_PREFIX):
pd_intfs.append(intf)
return pd_intfs
def get_unassigned_pd_interfaces(router):
pd_intfs = []
for intf in router[lib_constants.INTERFACE_KEY]:
for subnet in intf['subnets']:
if (ipv6_utils.is_ipv6_pd_enabled(subnet) and
subnet['cidr'] == n_const.PROVISIONAL_IPV6_PD_PREFIX):
pd_intfs.append(intf)
return pd_intfs
def assign_prefix_for_pd_interfaces(router):
pd_intfs = []
for ifno, intf in enumerate(router[lib_constants.INTERFACE_KEY]):
for subnet in intf['subnets']:
if (ipv6_utils.is_ipv6_pd_enabled(subnet) and subnet['cidr']
== lib_constants.PROVISIONAL_IPV6_PD_PREFIX):
subnet['cidr'] = "2001:db8:%d::/64" % ifno
pd_intfs.append(intf)
return pd_intfs
def _is_ip_required_by_subnet(self, context, subnet_id, device_owner):
# For ports that are not router ports, retain any automatic
# (non-optional, e.g. IPv6 SLAAC) addresses.
if device_owner in constants.ROUTER_INTERFACE_OWNERS:
return True
subnet = self._get_subnet(context, subnet_id)
return not (ipv6_utils.is_auto_address_subnet(subnet) and
not ipv6_utils.is_ipv6_pd_enabled(subnet))
def _is_ip_required_by_subnet(self, context, subnet_id, device_owner):
# For ports that are not router ports, retain any automatic
# (non-optional, e.g. IPv6 SLAAC) addresses.
if device_owner in constants.ROUTER_INTERFACE_OWNERS:
return True
subnet = self._get_subnet(context, subnet_id)
return not (ipv6_utils.is_auto_address_subnet(subnet)
and not ipv6_utils.is_ipv6_pd_enabled(subnet))
def assign_prefix_for_pd_interfaces(router):
pd_intfs = []
for ifno, intf in enumerate(router[lib_constants.INTERFACE_KEY]):
for subnet in intf['subnets']:
if (ipv6_utils.is_ipv6_pd_enabled(subnet) and
subnet['cidr'] == n_const.PROVISIONAL_IPV6_PD_PREFIX):
subnet['cidr'] = "2001:db8:%d::/64" % ifno
pd_intfs.append(intf)
return pd_intfs
def _is_ip_required_by_subnet(self, context, subnet_id, device_owner):
# For ports that are not router ports, retain any automatic
# (non-optional, e.g. IPv6 SLAAC) addresses.
# NOTE: Need to check the SNAT ports for DVR routers here since
# they consume an IP.
if device_owner in const.ROUTER_INTERFACE_OWNERS_SNAT:
return True
subnet = self._get_subnet(context, subnet_id)
return not (ipv6_utils.is_auto_address_subnet(subnet) and
not ipv6_utils.is_ipv6_pd_enabled(subnet))
def _is_ip_required_by_subnet(self, context, subnet_id, device_owner):
# For ports that are not router ports, retain any automatic
# (non-optional, e.g. IPv6 SLAAC) addresses.
# NOTE: Need to check the SNAT ports for DVR routers here since
# they consume an IP.
if device_owner in const.ROUTER_INTERFACE_OWNERS_SNAT:
return True
subnet_obj = self._get_subnet_object(context, subnet_id)
return not (ipv6_utils.is_auto_address_subnet(subnet_obj)
and not ipv6_utils.is_ipv6_pd_enabled(subnet_obj))
def _test_fixed_ips_for_port(self, context, network_id, fixed_ips,
device_owner):
"""Test fixed IPs for port.
Check that configured subnets are valid prior to allocating any
IPs. Include the subnet_id in the result if only an IP address is
configured.
:raises: InvalidInput, IpAddressInUse, InvalidIpForNetwork,
InvalidIpForSubnet
"""
fixed_ip_set = []
for fixed in fixed_ips:
subnet = self._get_subnet_for_fixed_ip(context, fixed, network_id)
is_auto_addr_subnet = ipv6_utils.is_auto_address_subnet(subnet)
if ('ip_address' in fixed and
subnet['cidr'] != constants.PROVISIONAL_IPV6_PD_PREFIX):
# Ensure that the IP's are unique
if not IpamNonPluggableBackend._check_unique_ip(
context, network_id, subnet['id'],
fixed['ip_address']):
raise n_exc.IpAddressInUse(net_id=network_id,
ip_address=fixed['ip_address'])
if (is_auto_addr_subnet and device_owner
not in constants.ROUTER_INTERFACE_OWNERS):
msg = (_("IPv6 address %(address)s can not be directly "
"assigned to a port on subnet %(id)s since the "
"subnet is configured for automatic addresses") %
{
'address': fixed['ip_address'],
'id': subnet['id']
})
raise n_exc.InvalidInput(error_message=msg)
fixed_ip_set.append({
'subnet_id': subnet['id'],
'ip_address': fixed['ip_address']
})
else:
# A scan for auto-address subnets on the network is done
# separately so that all such subnets (not just those
# listed explicitly here by subnet ID) are associated
# with the port.
if (device_owner in constants.ROUTER_INTERFACE_OWNERS_SNAT
or ipv6_utils.is_ipv6_pd_enabled(subnet)
or not is_auto_addr_subnet):
fixed_ip_set.append({'subnet_id': subnet['id']})
self._validate_max_ips_per_port(fixed_ip_set)
return fixed_ip_set
def _test_fixed_ips_for_port(self, context, network_id, fixed_ips,
device_owner):
"""Test fixed IPs for port.
Check that configured subnets are valid prior to allocating any
IPs. Include the subnet_id in the result if only an IP address is
configured.
:raises: InvalidInput, IpAddressInUse, InvalidIpForNetwork,
InvalidIpForSubnet
"""
fixed_ip_set = []
for fixed in fixed_ips:
subnet = self._get_subnet_for_fixed_ip(context, fixed, network_id)
is_auto_addr_subnet = ipv6_utils.is_auto_address_subnet(subnet)
if ('ip_address' in fixed and
subnet['cidr'] != constants.PROVISIONAL_IPV6_PD_PREFIX):
# Ensure that the IP's are unique
if not IpamNonPluggableBackend._check_unique_ip(
context, network_id,
subnet['id'], fixed['ip_address']):
raise n_exc.IpAddressInUse(net_id=network_id,
ip_address=fixed['ip_address'])
if (is_auto_addr_subnet and
device_owner not in
constants.ROUTER_INTERFACE_OWNERS):
msg = (_("IPv6 address %(address)s can not be directly "
"assigned to a port on subnet %(id)s since the "
"subnet is configured for automatic addresses") %
{'address': fixed['ip_address'],
'id': subnet['id']})
raise n_exc.InvalidInput(error_message=msg)
fixed_ip_set.append({'subnet_id': subnet['id'],
'ip_address': fixed['ip_address']})
else:
# A scan for auto-address subnets on the network is done
# separately so that all such subnets (not just those
# listed explicitly here by subnet ID) are associated
# with the port.
if (device_owner in constants.ROUTER_INTERFACE_OWNERS_SNAT or
ipv6_utils.is_ipv6_pd_enabled(subnet) or
not is_auto_addr_subnet):
fixed_ip_set.append({'subnet_id': subnet['id']})
self._validate_max_ips_per_port(fixed_ip_set)
return fixed_ip_set
def _update_ips_for_pd_subnet(self, context, subnets,
fixed_ips, mac_address=None):
fixed_ip_list = []
subnet_set = {fixed['subnet_id'] for fixed in fixed_ips
if 'subnet_id' in fixed}
pd_subnets = [s for s in subnets
if (s['id'] in subnet_set and
ipv6_utils.is_ipv6_pd_enabled(s))]
for subnet in pd_subnets:
# Already checked subnet validity in _get_subnet_for_fixed_ip
if mac_address:
fixed_ip_list.append({'subnet_id': subnet['id'],
'subnet_cidr': subnet['cidr'],
'eui64_address': True,
'mac': mac_address})
else:
fixed_ip_list.append({'subnet_id': subnet['id']})
return fixed_ip_list
def _update_subnet_allocation_pools(self, context, subnet_id, s):
context.session.query(models_v2.IPAllocationPool).filter_by(
subnet_id=subnet_id).delete()
pools = [(netaddr.IPAddress(p.first, p.version).format(),
netaddr.IPAddress(p.last, p.version).format())
for p in s['allocation_pools']]
new_pools = [models_v2.IPAllocationPool(first_ip=p[0],
last_ip=p[1],
subnet_id=subnet_id)
for p in pools]
context.session.add_all(new_pools)
# Call static method with self to redefine in child
# (non-pluggable backend)
if not ipv6_utils.is_ipv6_pd_enabled(s):
self._rebuild_availability_ranges(context, [s])
# Gather new pools for result
result_pools = [{'start': p[0], 'end': p[1]} for p in pools]
del s['allocation_pools']
return result_pools
def _update_subnet_allocation_pools(self, context, subnet_id, s):
context.session.query(models_v2.IPAllocationPool).filter_by(
subnet_id=subnet_id).delete()
pools = [(netaddr.IPAddress(p.first, p.version).format(),
netaddr.IPAddress(p.last, p.version).format())
for p in s['allocation_pools']]
new_pools = [models_v2.IPAllocationPool(first_ip=p[0],
last_ip=p[1],
subnet_id=subnet_id)
for p in pools]
context.session.add_all(new_pools)
# Call static method with self to redefine in child
# (non-pluggable backend)
if not ipv6_utils.is_ipv6_pd_enabled(s):
self._rebuild_availability_ranges(context, [s])
# Gather new pools for result
result_pools = [{'start': p[0], 'end': p[1]} for p in pools]
del s['allocation_pools']
return result_pools
def _process_internal_ports(self, pd):
existing_port_ids = set(p['id'] for p in self.internal_ports)
internal_ports = self.router.get(l3_constants.INTERFACE_KEY, [])
current_port_ids = set(p['id'] for p in internal_ports
if p['admin_state_up'])
new_port_ids = current_port_ids - existing_port_ids
new_ports = [p for p in internal_ports if p['id'] in new_port_ids]
old_ports = [p for p in self.internal_ports
if p['id'] not in current_port_ids]
updated_ports = self._get_updated_ports(self.internal_ports,
internal_ports)
enable_ra = False
for p in new_ports:
self.internal_network_added(p)
LOG.debug("appending port %s to internal_ports cache", p)
self.internal_ports.append(p)
enable_ra = enable_ra or self._port_has_ipv6_subnet(p)
for subnet in p['subnets']:
if ipv6_utils.is_ipv6_pd_enabled(subnet):
interface_name = self.get_internal_device_name(p['id'])
pd.enable_subnet(self.router_id, subnet['id'],
subnet['cidr'],
interface_name, p['mac_address'])
for p in old_ports:
self.internal_network_removed(p)
LOG.debug("removing port %s from internal_ports cache", p)
self.internal_ports.remove(p)
enable_ra = enable_ra or self._port_has_ipv6_subnet(p)
for subnet in p['subnets']:
if ipv6_utils.is_ipv6_pd_enabled(subnet):
pd.disable_subnet(self.router_id, subnet['id'])
updated_cidrs = []
if updated_ports:
for index, p in enumerate(internal_ports):
if not updated_ports.get(p['id']):
continue
self.internal_ports[index] = updated_ports[p['id']]
interface_name = self.get_internal_device_name(p['id'])
ip_cidrs = common_utils.fixed_ip_cidrs(p['fixed_ips'])
LOG.debug("updating internal network for port %s", p)
updated_cidrs += ip_cidrs
self.internal_network_updated(interface_name, ip_cidrs)
enable_ra = enable_ra or self._port_has_ipv6_subnet(p)
# Check if there is any pd prefix update
for p in internal_ports:
if p['id'] in (set(current_port_ids) & set(existing_port_ids)):
for subnet in p.get('subnets', []):
if ipv6_utils.is_ipv6_pd_enabled(subnet):
old_prefix = pd.update_subnet(self.router_id,
subnet['id'],
subnet['cidr'])
if old_prefix:
self._internal_network_updated(p, subnet['id'],
subnet['cidr'],
old_prefix,
updated_cidrs)
enable_ra = True
# Enable RA
if enable_ra:
self.enable_radvd(internal_ports)
existing_devices = self._get_existing_devices()
current_internal_devs = set(n for n in existing_devices
if n.startswith(INTERNAL_DEV_PREFIX))
current_port_devs = set(self.get_internal_device_name(port_id)
for port_id in current_port_ids)
stale_devs = current_internal_devs - current_port_devs
for stale_dev in stale_devs:
LOG.debug('Deleting stale internal router device: %s',
stale_dev)
pd.remove_stale_ri_ifname(self.router_id, stale_dev)
self.driver.unplug(stale_dev,
namespace=self.ns_name,
prefix=INTERNAL_DEV_PREFIX)
def _process_internal_ports(self, pd):
existing_port_ids = set(p['id'] for p in self.internal_ports)
internal_ports = self.router.get(lib_constants.INTERFACE_KEY, [])
current_port_ids = set(p['id'] for p in internal_ports
if p['admin_state_up'])
new_port_ids = current_port_ids - existing_port_ids
new_ports = [p for p in internal_ports if p['id'] in new_port_ids]
old_ports = [
p for p in self.internal_ports if p['id'] not in current_port_ids
]
updated_ports = self._get_updated_ports(self.internal_ports,
internal_ports)
enable_ra = False
for p in new_ports:
self.internal_network_added(p)
LOG.debug("appending port %s to internal_ports cache", p)
self.internal_ports.append(p)
enable_ra = enable_ra or self._port_has_ipv6_subnet(p)
for subnet in p['subnets']:
if ipv6_utils.is_ipv6_pd_enabled(subnet):
interface_name = self.get_internal_device_name(p['id'])
pd.enable_subnet(self.router_id, subnet['id'],
subnet['cidr'], interface_name,
p['mac_address'])
for p in old_ports:
self.internal_network_removed(p)
LOG.debug("removing port %s from internal_ports cache", p)
self.internal_ports.remove(p)
enable_ra = enable_ra or self._port_has_ipv6_subnet(p)
for subnet in p['subnets']:
if ipv6_utils.is_ipv6_pd_enabled(subnet):
pd.disable_subnet(self.router_id, subnet['id'])
updated_cidrs = []
if updated_ports:
for index, p in enumerate(internal_ports):
if not updated_ports.get(p['id']):
continue
self.internal_ports[index] = updated_ports[p['id']]
interface_name = self.get_internal_device_name(p['id'])
ip_cidrs = common_utils.fixed_ip_cidrs(p['fixed_ips'])
LOG.debug("updating internal network for port %s", p)
updated_cidrs += ip_cidrs
self.internal_network_updated(interface_name, ip_cidrs)
enable_ra = enable_ra or self._port_has_ipv6_subnet(p)
# Check if there is any pd prefix update
for p in internal_ports:
if p['id'] in (set(current_port_ids) & set(existing_port_ids)):
for subnet in p.get('subnets', []):
if ipv6_utils.is_ipv6_pd_enabled(subnet):
old_prefix = pd.update_subnet(self.router_id,
subnet['id'],
subnet['cidr'])
if old_prefix:
self._internal_network_updated(
p, subnet['id'], subnet['cidr'], old_prefix,
updated_cidrs)
enable_ra = True
# Enable RA
if enable_ra:
self.enable_radvd(internal_ports)
existing_devices = self._get_existing_devices()
current_internal_devs = set(n for n in existing_devices
if n.startswith(INTERNAL_DEV_PREFIX))
current_port_devs = set(
self.get_internal_device_name(port_id)
for port_id in current_port_ids)
stale_devs = current_internal_devs - current_port_devs
for stale_dev in stale_devs:
LOG.debug('Deleting stale internal router device: %s', stale_dev)
pd.remove_stale_ri_ifname(self.router_id, stale_dev)
self.driver.unplug(stale_dev,
namespace=self.ns_name,
prefix=INTERNAL_DEV_PREFIX)
