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#!/usr/bin/python
import subprocess
import os
import re
import sys
import json
TINC_NETWORK =os.environ.get("TINC_NETWORK","retiolum")
# is_legacy is the parameter which defines if the tinc config files are handled old fashioned (parse from syslog),
# or if the new and hip tincctl should be used
# Tags and Delimiters
TINC_TAG="tinc.%s" % TINC_NETWORK
BEGIN_NODES = "Nodes:"
END_NODES = "End of nodes."
BEGIN_SUBNET = "Subnet list:"
END_SUBNET = "End of subnet list"
BEGIN_EDGES = "Edges:"
END_EDGES = "End of edges."
def usage():
from sys import argv,exit
print("""usage: %s
This tool dumps all tinc node informations as json
ENVIRONMENT VARIABLES:
TINC_NETWORK The tinc network to dump
(default: retiolum)
LOG_FILE If legacy tinc is used, defines the log file where tinc stats are dumped in
(default: /var/log/everything.log)
""" % argv[0])
exit(1)
def debug(func):
from functools import wraps
@wraps(func)
def with_debug(*args,**kwargs):
print( func.__name__ + " (args: %s | kwargs %s)"% (args,kwargs))
return func(*args,**kwargs)
return with_debug
def parse_tinc_stats():
import subprocess
from time import sleep
from distutils.spawn import find_executable as which
#newest tinc
if which("tinc"):
return parse_new_input("tinc")
#new tinc
elif which("tincctl"):
return parse_new_input("tincctl")
#old tinc
else:
raise Exception("no tinc executable found!")
#@debug
def get_tinc_block(log_file):
""" returns an iterateable block from the given log file (syslog)
This function became obsolete with the introduction of tincctl
"""
from BackwardsReader import BackwardsReader
tinc_block = []
in_block = False
bf = BackwardsReader(log_file)
BOL = re.compile(".*tinc.%s\[[0-9]+\]: " % TINC_NETWORK)
while True:
line = bf.readline()
if not line:
raise Exception("end of file at log file? This should not happen!")
line = BOL.sub('',line).strip()
if END_SUBNET in line:
in_block = True
if not in_block:
continue
tinc_block.append(line)
if BEGIN_NODES in line:
break
return reversed(tinc_block)
def parse_new_input(tinc_bin):
nodes = {}
pnodes = subprocess.Popen(
[tinc_bin,"-n",TINC_NETWORK,"dump","reachable","nodes"],
stdout=subprocess.PIPE).communicate()[0].decode()
#pnodes = subprocess.check_output(["tincctl","-n",TINC_NETWORK,"dump","reachable","nodes"])
for line in pnodes.split('\n'):
if not line: continue
l = line.split()
nodes[l[0]]= { 'external-ip': l[2], 'external-port' : l[4] }
psubnets = subprocess.check_output(
[tinc_bin,"-n",TINC_NETWORK,"dump","subnets"]).decode()
for line in psubnets.split('\n'):
if not line: continue
l = line.split()
try:
if not nodes[l[2]].get('internal-ip',False):
nodes[l[2]]['internal-ip'] = []
nodes[l[2]]['internal-ip'].append(l[0].split('#')[0])
except KeyError:
pass # node does not exist (presumably)
pedges = subprocess.check_output(
[tinc_bin,"-n",TINC_NETWORK,"dump","edges"]).decode()
for line in pedges.split('\n'):
if not line: continue
l = line.split()
try:
if not 'to' in nodes[l[0]] :
nodes[l[0]]['to'] = []
nodes[l[0]]['to'].append(
{'name':l[2],'addr':l[4],'port':l[6],'weight' : l[10] })
except KeyError:
pass #node does not exist
return nodes
if __name__ == '__main__':
from sys import argv
if len(argv) > 1:
usage()
else:
print (json.dumps(parse_tinc_stats()))
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