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# Copyright (C) 2014,2015 Nippon Telegraph and Telephone Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import time
import json
import requests
import quagga_access as qaccess
import toml
from peer_info import Peer
from peer_info import Destination
from peer_info import Path
from ciscoconfparse import CiscoConfParse
# get address of each neighbor from gobpg configration
def get_neighbor_address(config):
address = []
neighbors_config = config['NeighborList']
for neighbor_config in neighbors_config:
neighbor_ip = neighbor_config['NeighborAddress']
address.append(neighbor_ip)
return address
# get route information on quagga
def get_routing_table(neighbor_address, target_prefix, retry=3, interval=5):
print "check route %s on quagga : %s" % (target_prefix, neighbor_address)
retry_count = 0
while True:
tn = qaccess.login(neighbor_address)
q_rib = qaccess.show_rib(tn)
qaccess.logout(tn)
for q_path in q_rib:
if target_prefix == q_path['Network']:
return q_path
retry_count += 1
if retry_count > retry:
break
else:
print "target_prefix %s is none" % target_prefix
print "wait (" + str(interval) + " seconds)"
time.sleep(interval)
print "route : %s is none" % target_prefix
return None
def get_adj_rib_in(url, neighbor_address, target_prefix, retry=3, interval=5):
return get_adj_rib(url, neighbor_address, target_prefix, retry, interval, type="in")
def get_adj_rib_out(url, neighbor_address, target_prefix, retry=3, interval=5):
return get_adj_rib(url, neighbor_address, target_prefix, retry, interval, type="out")
def get_adj_rib(base_url, neighbor_address, target_prefix, retry, interval, type="in"):
url = base_url + neighbor_address + "/adj-rib-" +type +"/ipv4"
retry_count = 0
while True:
r = requests.get(url)
in_rib = json.loads(r.text)
print in_rib
paths = [p for p in in_rib if p['Network'] == target_prefix]
if len(paths) > 0:
assert len(paths) == 1
return paths[0]
else:
retry_count += 1
if retry_count > retry:
break
else:
print "adj_rib_%s is none" % type
print "wait (" + str(interval) + " seconds)"
time.sleep(interval)
print "adj_rib_%s is none" % type
return None
def get_neighbor_state(base_url, neighbor_address):
print "check neighbor state for %s" % (neighbor_address)
state = None
url = base_url + neighbor_address
try:
r = requests.get(url)
neighbor = json.loads(r.text)
state = neighbor['info']['bgp_state']
remote_ip = neighbor['conf']['remote_ip']
assert remote_ip == neighbor_address
return state
except Exception as e:
print e
return state
def get_paths_in_localrib(base_url, neighbor_address, target_prefix, retry=3, interval=5):
url = base_url + neighbor_address + "/local-rib" + "/ipv4"
retry_count = 0
while True:
r = requests.get(url)
local_rib = json.loads(r.text)
g_dests = local_rib['Destinations']
g_dest = [dest for dest in g_dests if dest['Prefix'] == target_prefix]
if len(g_dest) > 0:
assert len(g_dest) == 1
d = g_dest[0]
return d['Paths']
else:
retry_count += 1
if retry_count > retry:
break
else:
print "destination is none : %s" % neighbor_address
print "please wait more (" + str(interval) + " second)"
time.sleep(interval)
print "destination is none"
return None
def load_gobgp_config(gobgp_config_file):
config = None
try:
config = toml.loads(open(gobgp_config_file).read())
except IOError, (errno, strerror):
print "I/O error(%s): %s" % (errno, strerror)
return config
# load configration from quagga(bgpd.conf)
def load_quagga_config(base_dir):
configs = []
dirs = []
try:
content = os.listdir(base_dir)
for item in content:
if "q" != item[0]:
continue
if os.path.isdir(os.path.join(base_dir, item)):
dirs.append(item)
except OSError, (errno, strerror):
print "I/O error(%s): %s" % (errno, strerror)
for dir in dirs:
config_path = base_dir + dir + "/bgpd.conf"
config = CiscoConfParse(config_path)
peer_ip = config.find_objects(r"^!\smy\saddress")[0].text.split(" ")[3]
peer_ip_version = config.find_objects(r"^!\smy\sip_version")[0].text.split(" ")[3]
peer_id = config.find_objects(r"^bgp\srouter-id")[0].text.split(" ")[2]
peer_as = config.find_objects(r"^router\sbgp")[0].text.split(" ")[2]
quagga_config = Peer(peer_ip, peer_id, peer_as, peer_ip_version)
networks = config.find_objects(r"^network")
if len(networks) == 0:
continue
for network in networks:
elems = network.text.split(" ")
prefix = elems[1].split("/")[0]
network = elems[1]
nexthop = peer_ip
path = Path(network, nexthop)
dest = Destination(prefix)
dest.paths.append(path)
quagga_config.destinations[prefix] = dest
# print "prefix: " + prefix
# print "network: " + network
# print "nexthop: " + nexthop
neighbors = config.find_objects(r"^neighbor\s.*\sremote-as")
if len(neighbors) == 0:
continue
for neighbor in neighbors:
elems = neighbor.text.split(" ")
neighbor = Peer(elems[1], None, elems[3], None)
quagga_config.neighbors.append(neighbor)
configs.append(quagga_config)
return configs
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