def do_peer_check(ztaddr):
"""
Try and ping the gateway/peer and goose the network if down.
:param addr: target addr
"""
import os
from node_tools.ctlr_funcs import netcfg_get_ipnet
addr = ztaddr
try:
netobj = netcfg_get_ipnet(ztaddr)
except ValueError as exc:
logger.error('netobj error is {}'.format(exc))
raise exc
for host in list(netobj.hosts()):
if str(host) != ztaddr:
addr = str(host)
break
logger.debug('PEER: found target IP addr {}'.format(addr))
home = NODE_SETTINGS['home_dir']
cmd_file = os.path.join(home, 'ping_gateway.sh')
cmd = [cmd_file, addr]
result = do_net_cmd(cmd)
logger.debug('do_gateway_check {} returned: {}'.format(cmd, result))
return result
def get_neighbor_ids(trie, node_id):
"""
Given the node ID, get the payloads from the net trie and return
the attached network and neighbor node IDs.
:param trie: net data trie
:param node_id: node ID to lookup
:return: tuple of net and node IDs
"""
from node_tools.ctlr_funcs import ipnet_get_netcfg
from node_tools.ctlr_funcs import is_exit_node
from node_tools.ctlr_funcs import netcfg_get_ipnet
from node_tools.helper_funcs import find_ipv4_iface
node_list = []
key_list = []
src_net = None
exit_net = None
src_node = None
exit_node = None
for key in trie:
if node_id in key:
key_list.append(key[0:16])
node_list.append(trie[key])
if len(key_list) != 2 and (len(key_list) == 1
and not is_exit_node(node_id)):
raise AssertionError('Node {} keys {} are invalid!'.format(
node_id, key_list))
else:
for key, data in zip(key_list, node_list):
node_ip = data['ipAssignments'][0]
ipnet = netcfg_get_ipnet(node_ip)
netcfg = ipnet_get_netcfg(ipnet)
gw_ip = find_ipv4_iface(netcfg.gateway[0])
if node_ip == gw_ip:
src_net = key
for node in trie.suffixes(src_net)[1:]:
if node_id != node:
src_node = node
else:
exit_net = key
for node in trie.suffixes(exit_net)[1:]:
if node_id != node:
exit_node = node
return src_net, exit_net, src_node, exit_node
def get_dangling_net_data(trie, net_id):
"""
Given the net ID, get the payload from the net data trie and return
the target network cfg from the `routes` list.
:notes: The return format matches the cfg_dict payload used by
config_network_object()
:param trie: net data trie
:param net_id: network ID to retrive
:return: Attrdict <netcfg> or None
"""
from node_tools.ctlr_funcs import ipnet_get_netcfg
from node_tools.ctlr_funcs import netcfg_get_ipnet
payload = trie[net_id]
# logger.debug('TRIE: net {} has payload {}'.format(net_id, payload))
netcfg = None
for route in payload['routes']:
if route['via'] is not None:
tgt_route = route['via']
netobj = netcfg_get_ipnet(tgt_route)
netcfg = ipnet_get_netcfg(netobj)
return netcfg
def test_get_invalid_obj(self):
"""Raise IPv4 address error"""
with self.assertRaises(ipaddress.AddressValueError):
netobj = netcfg_get_ipnet('172.16.0.261')
def test_get_valid_obj(self):
"""Return IPv4 network object"""
netobj = netcfg_get_ipnet('172.16.0.241')
self.assertIsInstance(netobj, ipaddress.IPv4Network)
self.assertEqual(str(netobj), '172.16.0.240/30')
