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import warnings
from pyroute2 import netns
from pyroute2.common import basestring
from pyroute2.netlink.rtnl.nsinfmsg import nsinfmsg
from pyroute2.requests.netns import NetNSFieldFilter
from ..objects import RTNL_Object
def load_nsinfmsg(schema, target, event):
#
# check if there is corresponding source
#
netns_path = event.get_attr('NSINFO_PATH')
if netns_path is None:
schema.log.debug('ignore %s %s' % (target, event))
return
if schema.config['auto_netns']:
warnings.warn(
'automatic netns sourcing is being refactored', DeprecationWarning
)
schema.load_netlink('netns', target, event)
schema = nsinfmsg.sql_schema().unique_index('NSINFO_PATH')
init = {
'specs': [['netns', schema]],
'classes': [['netns', nsinfmsg]],
'event_map': {nsinfmsg: [load_nsinfmsg]},
}
class NetNS(RTNL_Object):
table = 'netns'
msg_class = nsinfmsg
table_alias = 'n'
api = 'netns'
field_filter = NetNSFieldFilter
def __init__(self, *argv, **kwarg):
kwarg['iclass'] = nsinfmsg
self.event_map = {nsinfmsg: "load_rtnlmsg"}
super(NetNS, self).__init__(*argv, **kwarg)
@classmethod
def spec_normalize(cls, spec):
if isinstance(spec, basestring):
spec = {'path': spec}
path = netns._get_netnspath(spec['path'])
# on Python3 _get_netnspath() returns bytes, not str, so
# we have to decode it here in order to avoid issues with
# cache keys and DB inserts
if hasattr(path, 'decode'):
path = path.decode('utf-8')
spec['path'] = path
return spec
def __setitem__(self, key, value):
if self.state == 'system':
raise ValueError('attempt to change a readonly object')
if key == 'path':
value = netns._get_netnspath(value).decode('utf-8')
return super(NetNS, self).__setitem__(key, value)