def convert_rt_msg(msg):
ret = rtmsg()
ret['header']['type'] = (RTNL_NEWROUTE if msg['header']['type'] == RTM_ADD
else RTNL_DELROUTE)
ret['family'] = msg['DST']['header']['family']
ret['attrs'] = []
if 'address' in msg['DST']:
ret['attrs'].append(['RTA_DST', msg['DST']['address']])
if ('NETMASK' in msg
and msg['NETMASK']['header']['family'] == ret['family']):
ret['dst_len'] = dqn2int(msg['NETMASK']['address'], ret['family'])
if 'GATEWAY' in msg:
if msg['GATEWAY']['header']['family'] not in (AF_INET, AF_INET6):
# interface routes, table 255
# discard for now
return None
ret['attrs'].append(['RTA_GATEWAY', msg['GATEWAY']['address']])
if 'IFA' in msg:
ret['attrs'].append(['RTA_SRC', msg['IFA']['address']])
if 'IFP' in msg:
ret['attrs'].append(['RTA_OIF', msg['IFP']['index']])
elif msg['rtm_index'] != 0:
ret['attrs'].append(['RTA_OIF', msg['rtm_index']])
del ret['value']
return ret
def get_routes(self, *argv, **kwarg):
ifc = self._ifc.parse(self._ifc.run())
rta = self._route.parse(self._route.run())
ret = []
for spec in rta:
if spec['ifname'] not in ifc['links']:
continue
idx = ifc['links'][spec['ifname']]['index']
spec['attrs'].append(['RTA_OIF', idx])
msg = rtmsg().load(spec)
msg['header']['type'] = RTM_NEWROUTE
del msg['value']
ret.append(msg)
return ret
def match_metrics(msg):
if msg.get_attr('RTA_GATEWAY') != gateway1:
return False
mtu = (msg.get_attr('RTA_METRICS', rtmsg()).get_attr('RTAX_MTU', 0))
return mtu == target