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import ipaddress
from socket import AF_INET, AF_INET6
from pyroute2.common import dqn2int, get_address_family, getbroadcast
from .common import Index, IPRouteFilter, NLAKeyTransform
class AddressFieldFilter(Index, NLAKeyTransform):
_nla_prefix = 'IFA_'
def get_flags(self, context, mode):
if mode == 'field':
return 0
return context['flags']
def set_prefixlen(self, context, value):
if isinstance(value, str):
if '.' in value:
value = dqn2int(value)
value = int(value)
return {'prefixlen': value}
def set_address(self, context, value):
if not value:
return {}
ret = {'address': value}
if isinstance(value, str):
addr_spec = value.split('/')
ret['address'] = addr_spec[0]
if len(addr_spec) > 1:
ret.update(self.set_prefixlen(context, addr_spec[1]))
if ':' in ret['address']:
ret['address'] = ipaddress.ip_address(
ret['address']
).compressed
return ret
def set_local(self, context, value):
if not value:
return {}
return {'local': value}
def set_mask(self, context, value):
return {'prefixlen': value}
def _cacheinfo(self, key, value):
return {key: value, 'cacheinfo': {}}
def set_preferred_lft(self, context, value):
return self._cacheinfo('preferred', value)
def set_preferred(self, context, value):
return self._cacheinfo('preferred', value)
def set_valid_lft(self, context, value):
return self._cacheinfo('valid', value)
def set_valid(self, context, value):
return self._cacheinfo('valid', value)
class AddressIPRouteFilter(IPRouteFilter):
def set_cacheinfo(self, context, value):
cacheinfo = value.copy()
if self.command != 'dump':
for i in ('preferred', 'valid'):
cacheinfo[f'ifa_{i}'] = context.get(i, pow(2, 32) - 1)
return {'cacheinfo': cacheinfo}
return {}
def set_broadcast(self, context, value):
ret = {}
if self.command != 'dump' and isinstance(value, bool):
keys = set(context.keys())
if value and 'address' in keys and 'prefixlen' in keys:
if 'family' in keys:
family = context['family']
else:
ret['family'] = family = get_address_family(
context['address']
)
ret['broadcast'] = getbroadcast(
context['address'], context['prefixlen'], family
)
else:
ret['broadcast'] = value
return ret
def finalize(self, context):
if self.command != 'dump':
if 'cacheinfo' in context:
context.pop('preferred', None)
context.pop('valid', None)
if (
context['cacheinfo']['ifa_valid']
< context['cacheinfo']['ifa_preferred']
):
raise ValueError('preferred_lft is greater than valid_lft')
if 'family' not in context and 'address' in context:
context['family'] = get_address_family(context['address'])
if 'prefixlen' not in context:
if context['family'] == AF_INET:
context['prefixlen'] = 32
elif context['family'] == AF_INET6:
context['prefixlen'] = 128
if (
'local' not in context
and 'address' in context
and context['family'] == AF_INET
):
# inject IFA_LOCAL, if family is AF_INET and
# IFA_LOCAL is not set
context['local'] = context['address']