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Added Full view for Bird

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This commit is contained in:
dsx 2015-01-27 11:22:16 -05:00
parent c67f4644ae
commit 1ea13f80f4
5 changed files with 124 additions and 71 deletions
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6
lg.cfg
View file

@ -37,3 +37,9 @@ BIRD_HAS_FULL_VIEW = True
# Set to True if your BIRD doesn't pretent to be a router
BIRD_IS_NOT_A_ROUTER = True
# Maximum number of paths to show
MAX_PATHS = 7
# Shorten router names (xxx-yyy-zzz.telecom.local -> xxx-yyy-zzz, provided you specify '.telecom.local' as a value)
ROUTER_NAME_REMOVE = '.telecom.local.'

96
lg.py
View file

@ -20,6 +20,7 @@
#
###
from collections import defaultdict
from logging.handlers import TimedRotatingFileHandler
from urllib import quote, unquote
from urllib2 import urlopen
@ -30,12 +31,11 @@ import random
import re
import subprocess
from toolbox import mask_is_valid, ipv6_is_valid, ipv4_is_valid, resolve, save_cache_pickle, load_cache_pickle, unescape
# from xml.sax.saxutils import escape
from toolbox import mask_is_valid, ipv6_is_valid, ipv4_is_valid, resolve, resolve_ptr, save_cache_pickle, load_cache_pickle, unescape
import pydot
from dns.resolver import NXDOMAIN
from flask import Flask, render_template, jsonify, redirect, session, request, abort, Response, Markup
import pydot
app = Flask(__name__)
app.config.from_pyfile('lg.cfg')
@ -143,12 +143,7 @@ def bird_proxy(host, proto, service, query):
elif not path:
return False, 'Proto "%s" invalid' % proto
else:
if app.config.get('BIRD_HAS_FULL_VIEW'):
url = 'http://{}:{}/{}?q={}'.format(app.config['ROUTER_IP'][host][0], port, path, quote(query))
else:
# FIXME: debug
url = 'http://{}:{}/{}?q={}'.format(app.config['ROUTER_IP'][host][0], port, path, quote(query))
# url = "http://%s.%s:%d/%s?q=%s" % (host, app.config["DOMAIN"], port, path, quote(query))
url = 'http://{}:{}/{}?q={}'.format(app.config['ROUTER_IP'][host][0], port, path, quote(query))
try:
f = urlopen(url)
resultat = f.read()
@ -451,8 +446,7 @@ def show_bgpmap():
for host, asmaps in data.iteritems():
add_node(host, label="%s\r%s" % (host.upper(), app.config["DOMAIN"].upper()), shape="box", fillcolor="#F5A9A9")
# as_number = app.config["AS_NUMBER"].get(host, None)
as_number = app.config["AS_NUMBER"].get(host, '6453') # FIXME: debug
as_number = app.config["AS_NUMBER"].get(host, None)
if as_number:
node = add_node(as_number, fillcolor="#F5A9A9")
edge = add_edge(as_number, nodes[host])
@ -475,8 +469,11 @@ def show_bgpmap():
continue
if not hop:
hop = True
if _as not in hosts:
if app.config.get('BIRD_HAS_FULL_VIEW', False):
hop = True
hop_label = ''
continue
elif _as not in hosts:
hop_label = _as
if first:
hop_label = hop_label + "*"
@ -567,24 +564,9 @@ def build_as_tree_from_raw_bird_ouput(host, proto, text):
def build_as_tree_from_full_view(host, proto, res):
# FIXME: debug
# {u'noc.chi1.us': [[u'chi1', u'31133', u'6697', u'193.232.248.0/22']],
# u'noc.dal1.us': [[u'dal1', u'31133', u'6697', u'193.232.248.0/22']],
# u'noc.sng2.sg': [[u'sng2', u'31133', u'6697', u'193.232.248.0/22']],
# u'noc.war1.pl': [[u'war1', u'31133', u'6697', u'193.232.248.0/22']],
# u'rc1.ash1.us': [[u'ash1', u'31133', u'6697', u'193.232.248.0/22']],
# u'rc1.atl1.us': [[u'atl1', u'31133', u'6697', u'193.232.248.0/22']],
# u'rc1.fra6.de': [[u'fra6', u'31133', u'6697', u'193.232.248.0/22']],
# u'rc1.lax1.us': [[u'lax1', u'31133', u'6697', u'193.232.248.0/22']],
# u'rc1.lon1.uk': [[u'lon1', u'31133', u'6697', u'193.232.248.0/22']],
# u'rc1.nyc1.us': [[u'nyc1', u'31133', u'6697', u'193.232.248.0/22']],
# u'rc1.par2.fr': [[u'par2', u'31133', u'6697', u'193.232.248.0/22']],
# u'rc1.sjo1.us': [[u'sjo1', u'31133', u'6697', u'193.232.248.0/22']]}
# {'ginwyntcore2': [['ginwyntcore2', '9002', '6697', '193.232.248.0/22']]}
re_chunk_start = re.compile(r'(.*)unreachable\s+\[(.*)\s+.*\s+from\s+(.*)\].*\(.*\)\s\[.*\]')
result = dict()
dest_subnet = None
raw = defaultdict(dict)
for line in res:
line = line.strip()
@ -597,7 +579,12 @@ def build_as_tree_from_full_view(host, proto, res):
router_tag = expr.group(2).strip()
router_ip = expr.group(3).strip()
result[router_ip] = list()
try:
router_ip = resolve_ptr(router_ip)
except NXDOMAIN:
# If PTR record can't be found, IP will do too
pass
elif line.startswith('BGP.as_path:'):
# BGP AS path
@ -608,24 +595,57 @@ def build_as_tree_from_full_view(host, proto, res):
if as_num:
path.append(as_num)
path.append(dest_subnet)
result[router_ip].append(path)
path_tag = '+'.join(path[1:])
if path_tag not in raw:
raw[path_tag] = list()
raw[path_tag].append(dict(router_tag=router_tag, router_ip=router_ip, path=path))
elif line.startswith('BGP.community:'):
# BGP community
line = line.replace('BGP.community:', '')
line = line.strip()
raw[path_tag][-1]['community'] = line.split(' ')
elif line.startswith('BGP.cluster_list:'):
# BGP cluster size
line = line.replace('BGP.cluster_list:', '')
line = line.strip()
raw[path_tag][-1]['cluster_size'] = len(line.split(' '))
# Sort and filter out result
# 0. Breakdown by possible BGP pathes
# 1. Sort by BGP path length, shortest first
# 2. Sort by cluster size, smallest first
# 3. Sort by community (?)
for path_tag in raw:
raw[path_tag] = iter(raw[path_tag])
result = defaultdict(list)
exhausted_tags = set()
existing_paths_num = len(raw)
if len(raw) > app.config.get('MAX_PATHS', 10):
max_paths = existing_paths_num
else:
max_paths = app.config.get('MAX_PATHS', 10)
path_count = 0
while path_count < max_paths:
for path_tag in sorted(raw, key=lambda x: x.count('+')):
if path_tag in exhausted_tags:
continue
try:
path = next(raw[path_tag])
except StopIteration:
exhausted_tags.add(path_tag)
continue
result[path['router_ip']].append(path['path'])
result[path['router_ip']][-1].append(dest_subnet)
path_count += 1
if path_count == max_paths:
break
if path_count == max_paths or len(exhausted_tags) == existing_paths_num:
break
return result

3
lgproxy.cfg
View file

@ -5,3 +5,6 @@ LOG_LEVEL="WARNING"
ACCESS_LIST = ["91.224.149.206", "178.33.111.110", "2a01:6600:8081:ce00::1"]
IPV4_SOURCE=""
IPV6_SOURCE=""
FEATURES=['traceroute', 'bird' ]
SOCKET_PATH={4: '/var/run/bird.ctl', 6: '/var/run/bird6.ctl'}

76
lgproxy.py
View file

@ -35,60 +35,69 @@ app = Flask(__name__)
app.debug = app.config["DEBUG"]
app.config.from_pyfile('lgproxy.cfg')
file_handler = TimedRotatingFileHandler(filename=app.config["LOG_FILE"], when="midnight")
file_handler = TimedRotatingFileHandler(filename=app.config["LOG_FILE"], when="midnight")
app.logger.setLevel(getattr(logging, app.config["LOG_LEVEL"].upper()))
app.logger.addHandler(file_handler)
@app.before_request
def access_log_before(*args, **kwargs):
app.logger.info("[%s] request %s, %s", request.remote_addr, request.url, "|".join(["%s:%s"%(k,v) for k,v in request.headers.items()]))
app.logger.info("[%s] request %s, %s", request.remote_addr, request.url, "|".join(["%s:%s" % (k, v) for k, v in request.headers.items()]))
@app.after_request
def access_log_after(response, *args, **kwargs):
app.logger.info("[%s] reponse %s, %s", request.remote_addr, request.url, response.status_code)
app.logger.info("[%s] reponse %s, %s", request.remote_addr, request.url, response.status_code)
return response
def check_accesslist():
if app.config["ACCESS_LIST"] and request.remote_addr not in app.config["ACCESS_LIST"]:
if app.config["ACCESS_LIST"] and request.remote_addr not in app.config["ACCESS_LIST"]:
abort(401)
def check_features():
features = app.config.get('FEATURES', [])
if request.endpoint not in features:
abort(401)
@app.route("/traceroute")
@app.route("/traceroute6")
def traceroute():
check_accesslist()
if sys.platform.startswith('freebsd') or sys.platform.startswith('netbsd') or sys.platform.startswith('openbsd'):
traceroute4 = [ 'traceroute' ]
traceroute6 = [ 'traceroute6' ]
else: # For Linux
traceroute4 = [ 'traceroute', '-4' ]
traceroute6 = [ 'traceroute', '-6' ]
traceroute4 = ['traceroute']
traceroute6 = ['traceroute6']
else: # For Linux
traceroute4 = ['traceroute', '-4']
traceroute6 = ['traceroute', '-6']
src = []
if request.path == '/traceroute6':
traceroute = traceroute6
if app.config.get("IPV6_SOURCE",""):
src = [ "-s", app.config.get("IPV6_SOURCE") ]
if request.path == '/traceroute6':
traceroute = traceroute6
if app.config.get("IPV6_SOURCE", ""):
src = ["-s", app.config.get("IPV6_SOURCE")]
else:
traceroute = traceroute4
if app.config.get("IPV4_SOURCE",""):
src = [ "-s", app.config.get("IPV4_SOURCE") ]
else:
traceroute = traceroute4
if app.config.get("IPV4_SOURCE", ""):
src = ["-s", app.config.get("IPV4_SOURCE")]
query = request.args.get("q","")
query = request.args.get("q", "")
query = unquote(query)
if sys.platform.startswith('freebsd') or sys.platform.startswith('netbsd'):
options = [ '-a', '-q1', '-w1', '-m15' ]
options = ['-a', '-q1', '-w1', '-m15']
elif sys.platform.startswith('openbsd'):
options = [ '-A', '-q1', '-w1', '-m15' ]
else: # For Linux
options = [ '-A', '-q1', '-N32', '-w1', '-m15' ]
command = traceroute + src + options + [ query ]
result = subprocess.Popen( command , stdout=subprocess.PIPE).communicate()[0].decode('utf-8', 'ignore').replace("\n","<br>")
return result
options = ['-A', '-q1', '-w1', '-m15']
else: # For Linux
options = ['-A', '-q1', '-N32', '-w1', '-m15']
command = traceroute + src + options + [query]
result = subprocess.Popen(command, stdout=subprocess.PIPE).communicate()[0].decode('utf-8', 'ignore').replace("\n", "<br>")
return result
@app.route("/bird")
@ -96,18 +105,21 @@ def traceroute():
def bird():
check_accesslist()
if request.path == "/bird": b = BirdSocket(file="/var/run/bird.ctl")
elif request.path == "/bird6": b = BirdSocket(file="/var/run/bird6.ctl")
else: return "No bird socket selected"
if request.path == "/bird":
b = BirdSocket(file=app.config.get('SOCKET_PATH').get(4))
elif request.path == "/bird6":
b = BirdSocket(file=app.config.get('SOCKET_PATH').get(6))
else:
return "No bird socket selected"
query = request.args.get("q","")
query = request.args.get("q", "")
query = unquote(query)
status, result = b.cmd(query)
b.close()
# FIXME: use status
return result
if __name__ == "__main__":
app.logger.info("lgproxy start")

14
toolbox.py
View file

@ -19,20 +19,32 @@
#
###
from dns import resolver
from dns import resolver, reversename
import socket
import pickle
import xml.parsers.expat
from flask import Flask
resolv = resolver.Resolver()
resolv.timeout = 0.5
resolv.lifetime = 1
app = Flask(__name__)
app.config.from_pyfile('lg.cfg')
def resolve(n, q):
return str(resolv.query(n, q)[0])
def resolve_ptr(ip):
ptr = str(resolve(reversename.from_address(ip), 'PTR')).lower()
ptr = ptr.replace(app.config.get('ROUTER_NAME_REMOVE', ''), '')
return ptr
def mask_is_valid(n):
if not n:
return True