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Path: /opt/alt/python311/lib/python3.11/site-packages/pyroute2/requests/

Viewing File: address.py

import ipaddress
from socket import AF_INET, AF_INET6

from pyroute2.common import dqn2int, get_address_family, getbroadcast
from pyroute2.netlink.rt_files import RtAddrProtosFile

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_proto(self, context, value):
        if isinstance(value, str):
            value = RtAddrProtosFile().get_rt_id(value)
        return {'proto': value}

    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']
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