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Dir : //proc/self/root/opt/saltstack/salt/extras-3.10/pyroute2/ndb/objects/rule.py

from collections import OrderedDict

from pyroute2.common import get_address_family
from pyroute2.netlink.rtnl.fibmsg import fibmsg

from ..objects import RTNL_Object

schema = fibmsg.sql_schema().unique_index(
    'family',
    'dst_len',
    'src_len',
    'tos',
    'action',
    'flags',
    'FRA_DST',
    'FRA_SRC',
    'FRA_IIFNAME',
    'FRA_GOTO',
    'FRA_PRIORITY',
    'FRA_FWMARK',
    'FRA_FLOW',
    'FRA_TUN_ID',
    'FRA_SUPPRESS_IFGROUP',
    'FRA_SUPPRESS_PREFIXLEN',
    'FRA_TABLE',
    'FRA_FWMASK',
    'FRA_OIFNAME',
    'FRA_L3MDEV',
    'FRA_UID_RANGE',
    'FRA_PROTOCOL',
    'FRA_IP_PROTO',
    'FRA_SPORT_RANGE',
    'FRA_DPORT_RANGE',
)

init = {
    'specs': [['rules', schema]],
    'classes': [['rules', fibmsg]],
    'event_map': {fibmsg: ['rules']},
}


class Rule(RTNL_Object):
    table = 'rules'
    msg_class = fibmsg
    api = 'rule'
    _replace_on_key_change = True

    @classmethod
    def summary(cls, view):
        req = '''
              SELECT
                f_target, f_tflags, f_family,
                f_FRA_PRIORITY, f_action, f_FRA_TABLE
              FROM
                rules
              '''
        yield ('target', 'tflags', 'family', 'priority', 'action', 'table')
        for record in view.ndb.task_manager.db_fetch(req):
            yield record

    def __init__(self, *argv, **kwarg):
        kwarg['iclass'] = fibmsg
        self._fields = [x[0] for x in fibmsg.fields]
        self.event_map = {fibmsg: "load_rtnlmsg"}
        key = argv[1]
        families = set(
            [
                get_address_family(x)
                for x in (key.get('src'), key.get('dst'))
                if x != '' and x is not None
            ]
        )
        if len(families) > 1:
            raise TypeError('src and dst must be of the same IP family')
        elif len(families) == 1:
            key['family'] = families.pop()
        super(Rule, self).__init__(*argv, **kwarg)

    def load_sql(self, *argv, **kwarg):
        spec = super(Rule, self).load_sql(*argv, **kwarg)
        if spec is None:
            return
        nkey = OrderedDict()
        for name_norm, name_raw, value in zip(self.names, self.spec, spec):
            if name_raw in self.kspec:
                nkey[name_raw] = value
            if name_norm not in self._fields and value in (0, ''):
                dict.__setitem__(self, name_norm, None)
        self._key = nkey
        return spec