| 1 | #!/usr/bin/env python
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| 2 | #
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| 3 | # vim:ts=2:et:sw=2:ai
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| 4 | # Wireless Leiden configuration generator, based on yaml files'
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| 5 | # Rick van der Zwet <info@rickvanderzwet.nl>
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| 6 |
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| 7 | # Hack to make the script directory is also threated as a module search path.
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| 8 | import sys
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| 9 | import os
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| 10 | import re
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| 11 | sys.path.append(os.path.dirname(__file__))
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| 12 |
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| 13 | import cgi
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| 14 | import cgitb
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| 15 | import copy
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| 16 | import glob
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| 17 | import socket
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| 18 | import string
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| 19 | import subprocess
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| 20 | import time
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| 21 | import rdnap
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| 22 | from pprint import pprint
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| 23 | try:
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| 24 | import yaml
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| 25 | except ImportError, e:
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| 26 | print e
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| 27 | print "[ERROR] Please install the python-yaml or devel/py-yaml package"
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| 28 | exit(1)
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| 29 |
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| 30 | try:
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| 31 | from yaml import CLoader as Loader
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| 32 | from yaml import CDumper as Dumper
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| 33 | except ImportError:
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| 34 | from yaml import Loader, Dumper
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| 35 |
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| 36 |
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| 37 |
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| 38 | if os.environ.has_key('CONFIGROOT'):
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| 39 | NODE_DIR = os.environ['CONFIGROOT']
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| 40 | else:
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| 41 | NODE_DIR = os.path.abspath(os.path.dirname(__file__)) + '/../nodes'
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| 42 | __version__ = '$Id: gformat.py 9286 2011-06-23 19:33:04Z rick $'
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| 43 |
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| 44 |
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| 45 | files = [
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| 46 | 'authorized_keys',
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| 47 | 'dnsmasq.conf',
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| 48 | 'rc.conf.local',
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| 49 | 'resolv.conf',
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| 50 | 'wleiden.yaml'
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| 51 | ]
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| 52 |
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| 53 | # Global variables uses
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| 54 | OK = 10
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| 55 | DOWN = 20
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| 56 | UNKNOWN = 90
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| 57 |
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| 58 |
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| 59 | def get_proxylist():
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| 60 | """Get all available proxies proxyX sorting based on X number"""
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| 61 | os.chdir(NODE_DIR)
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| 62 | proxylist = sorted(glob.glob("proxy*"),
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| 63 | key=lambda name: int(''.join([c for c in name if c in string.digits])),
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| 64 | cmp=lambda x,y: x - y)
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| 65 | return proxylist
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| 66 |
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| 67 |
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| 68 |
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| 69 | def valid_addr(addr):
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| 70 | """ Show which address is valid in which are not """
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| 71 | return str(addr).startswith('172.')
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| 72 |
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| 73 |
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| 74 | def get_nodelist():
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| 75 | """ Get all available nodes - sorted """
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| 76 | os.chdir(NODE_DIR)
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| 77 | nodelist = sorted(glob.glob("CNode*"))
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| 78 | return nodelist
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| 79 |
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| 80 | def get_hostlist():
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| 81 | """ Combined hosts and proxy list"""
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| 82 | return get_nodelist() + get_proxylist()
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| 83 |
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| 84 | def angle_between_points(lat1,lat2,long1,long2):
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| 85 | """
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| 86 | Return Angle in radians between two GPS coordinates
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| 87 | See: http://stackoverflow.com/questions/3809179/angle-between-2-gps-coordinates
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| 88 | """
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| 89 | dy = lat2 - lat1
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| 90 | dx = math.cos(math.pi/180*lat1)*(long2 - long1)
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| 91 | angle = math.atan2(dy,dx)
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| 92 | return angle
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| 93 |
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| 94 | def angle_to_cd(angle):
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| 95 | """ Return Dutch Cardinal Direction estimation in 'one digit' of radian angle """
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| 96 |
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| 97 | # For easy conversion get positive degree
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| 98 | degrees = math.degrees(angle)
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| 99 | if degrees < 0:
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| 100 | 360 - abs(degrees)
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| 101 |
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| 102 | # Numbers can be confusing calculate from the 4 main directions
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| 103 | p = 22.5
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| 104 | if degrees < p:
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| 105 | return "n"
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| 106 | elif degrees < (90 - p):
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| 107 | return "no"
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| 108 | elif degrees < (90 + p):
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| 109 | return "o"
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| 110 | elif degrees < (180 - p):
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| 111 | return "zo"
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| 112 | elif degrees < (180 + p):
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| 113 | return "z"
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| 114 | elif degrees < (270 - p):
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| 115 | return "zw"
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| 116 | elif degrees < (270 + p):
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| 117 | return "w"
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| 118 | elif degrees < (360 - p):
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| 119 | return "nw"
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| 120 | else:
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| 121 | return "n"
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| 122 |
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| 123 |
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| 124 | def generate_title(nodelist):
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| 125 | """ Main overview page """
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| 126 | items = {'root' : "." }
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| 127 | output = """
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| 128 | <html>
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| 129 | <head>
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| 130 | <title>Wireless leiden Configurator - GFormat</title>
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| 131 | <style type="text/css">
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| 132 | th {background-color: #999999}
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| 133 | tr:nth-child(odd) {background-color: #cccccc}
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| 134 | tr:nth-child(even) {background-color: #ffffff}
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| 135 | th, td {padding: 0.1em 1em}
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| 136 | </style>
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| 137 | </head>
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| 138 | <body>
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| 139 | <center>
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| 140 | <form type="GET" action="%(root)s">
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| 141 | <input type="hidden" name="action" value="update">
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| 142 | <input type="submit" value="Update Configuration Database (SVN)">
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| 143 | </form>
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| 144 | <table>
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| 145 | <caption><h3>Wireless Leiden Configurator</h3></caption>
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| 146 | """ % items
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| 147 |
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| 148 | for node in nodelist:
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| 149 | items['node'] = node
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| 150 | output += '<tr><td><a href="%(root)s/%(node)s">%(node)s</a></td>' % items
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| 151 | for config in files:
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| 152 | items['config'] = config
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| 153 | output += '<td><a href="%(root)s/%(node)s/%(config)s">%(config)s</a></td>' % items
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| 154 | output += "</tr>"
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| 155 | output += """
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| 156 | </table>
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| 157 | <hr />
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| 158 | <em>%s</em>
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| 159 | </center>
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| 160 | </body>
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| 161 | </html>
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| 162 | """ % __version__
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| 163 |
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| 164 | return output
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| 165 |
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| 166 |
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| 167 |
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| 168 | def generate_node(node):
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| 169 | """ Print overview of all files available for node """
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| 170 | return "\n".join(files)
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| 171 |
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| 172 |
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| 173 |
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| 174 | def generate_header(ctag="#"):
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| 175 | return """\
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| 176 | %(ctag)s
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| 177 | %(ctag)s DO NOT EDIT - Automatically generated by 'gformat'
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| 178 | %(ctag)s Generated at %(date)s by %(host)s
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| 179 | %(ctag)s
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| 180 | """ % { 'ctag' : ctag, 'date' : time.ctime(), 'host' : socket.gethostname() }
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| 181 |
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| 182 |
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| 183 |
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| 184 | def parseaddr(s):
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| 185 | """ Process IPv4 CIDR notation addr to a (binary) number """
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| 186 | f = s.split('.')
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| 187 | return (long(f[0]) << 24L) + \
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| 188 | (long(f[1]) << 16L) + \
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| 189 | (long(f[2]) << 8L) + \
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| 190 | long(f[3])
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| 191 |
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| 192 |
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| 193 |
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| 194 | def showaddr(a):
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| 195 | """ Display IPv4 addr in (dotted) CIDR notation """
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| 196 | return "%d.%d.%d.%d" % ((a >> 24) & 0xff, (a >> 16) & 0xff, (a >> 8) & 0xff, a & 0xff)
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| 197 |
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| 198 |
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| 199 | def is_member(ip, mask, canidate):
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| 200 | """ Return True if canidate is part of ip/mask block"""
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| 201 | ip_addr = gformat.parseaddr(ip)
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| 202 | ip_canidate = gformat.parseaddr(canidate)
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| 203 | mask = int(mask)
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| 204 | ip_addr = ip_addr & ~((1 << (32 - mask)) - 1)
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| 205 | ip_canidate = ip_canidate & ~((1 << (32 - mask)) - 1)
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| 206 | return ip_addr == ip_canidate
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| 207 |
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| 208 |
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| 209 |
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| 210 |
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| 211 | def netmask2subnet(netmask):
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| 212 | """ Given a 'netmask' return corresponding CIDR """
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| 213 | return showaddr(0xffffffff & (0xffffffff << (32 - int(netmask))))
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| 214 |
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| 215 |
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| 216 |
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| 217 | def generate_dnsmasq_conf(datadump):
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| 218 | """ Generate configuration file '/usr/local/etc/dnsmasq.conf' """
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| 219 | output = generate_header()
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| 220 | output += """\
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| 221 | # DHCP server options
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| 222 | dhcp-authoritative
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| 223 | dhcp-fqdn
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| 224 | domain=dhcp.%(nodename_lower)s.%(domain)s
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| 225 | domain-needed
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| 226 | expand-hosts
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| 227 |
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| 228 | # Low memory footprint
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| 229 | cache-size=10000
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| 230 | \n""" % datadump
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| 231 |
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| 232 | for iface_key in datadump['iface_keys']:
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| 233 | if not datadump[iface_key].has_key('comment'):
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| 234 | datadump[iface_key]['comment'] = None
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| 235 | output += "## %(interface)s - %(desc)s - %(comment)s\n" % datadump[iface_key]
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| 236 |
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| 237 | try:
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| 238 | (dhcp_start, dhcp_stop) = datadump[iface_key]['dhcp'].split('-')
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| 239 | (ip, netmask) = datadump[iface_key]['ip'].split('/')
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| 240 | datadump[iface_key]['subnet'] = netmask2subnet(netmask)
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| 241 | except (AttributeError, ValueError):
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| 242 | output += "# not autoritive\n\n"
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| 243 | continue
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| 244 |
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| 245 | dhcp_part = ".".join(ip.split('.')[0:3])
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| 246 | datadump[iface_key]['dhcp_start'] = dhcp_part + "." + dhcp_start
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| 247 | datadump[iface_key]['dhcp_stop'] = dhcp_part + "." + dhcp_stop
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| 248 | output += "dhcp-range=%(interface)s,%(dhcp_start)s,%(dhcp_stop)s,%(subnet)s,24h\n\n" % datadump[iface_key]
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| 249 |
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| 250 | return output
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| 251 |
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| 252 |
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| 253 |
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| 254 | def generate_rc_conf_local(datadump):
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| 255 | """ Generate configuration file '/etc/rc.conf.local' """
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| 256 | output = generate_header("#");
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| 257 | output += """\
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| 258 | hostname='%(nodetype)s%(nodename)s.%(domain)s'
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| 259 | location='%(location)s'
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| 260 | """ % datadump
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| 261 |
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| 262 | # TProxy configuration
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| 263 | output += "\n"
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| 264 | try:
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| 265 | if datadump['tproxy']:
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| 266 | output += """\
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| 267 | tproxy_enable='YES'
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| 268 | tproxy_range='%(tproxy)s'
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| 269 | """ % datadump
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| 270 | except KeyError:
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| 271 | output += "tproxy_enable='NO'\n"
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| 272 |
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| 273 | output += '\n'
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| 274 | # lo0 configuration:
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| 275 | # - 172.32.255.1/32 is the proxy.wleiden.net deflector
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| 276 | # - masterip is special as it needs to be assigned to at
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| 277 | # least one interface, so if not used assign to lo0
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| 278 | addrs_list = { 'lo0' : ["127.0.0.1/8", "172.31.255.1/32"] }
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| 279 | iface_map = {'lo0' : 'lo0'}
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| 280 |
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| 281 | masterip_used = False
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| 282 | for iface_key in datadump['iface_keys']:
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| 283 | if datadump[iface_key]['ip'].startswith(datadump['masterip']):
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| 284 | masterip_used = True
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| 285 | break
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| 286 | if not masterip_used:
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| 287 | addrs_list['lo0'].append(datadump['masterip'] + "/32")
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| 288 |
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| 289 | wlan_count = 0
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| 290 | for iface_key in datadump['iface_keys']:
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| 291 | ifacedump = datadump[iface_key]
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| 292 | interface = ifacedump['interface']
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| 293 | # By default no special interface mapping
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| 294 | iface_map[interface] = interface
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| 295 |
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| 296 | # Add interface IP to list
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| 297 | if addrs_list.has_key(interface):
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| 298 | addrs_list[interface].append(ifacedump['ip'])
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| 299 | else:
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| 300 | addrs_list[interface] = [ifacedump['ip']]
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| 301 |
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| 302 | # Alias only needs IP assignment for now, this might change if we
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| 303 | # are going to use virtual accesspoints
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| 304 | if "alias" in iface_key:
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| 305 | continue
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| 306 |
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| 307 | # XXX: Might want to deduct type directly from interface name
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| 308 | if ifacedump['type'] in ['11a', '11b', '11g', 'wireless']:
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| 309 | # Create wlanX interface
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| 310 | ifacedump['wlanif'] ="wlan%i" % wlan_count
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| 311 | iface_map[interface] = ifacedump['wlanif']
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| 312 | wlan_count += 1
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| 313 |
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| 314 | # Default to station (client) mode
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| 315 | ifacedump['wlanmode'] = "sta"
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| 316 | if ifacedump['mode'] in ['master', 'master-wds']:
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| 317 | ifacedump['wlanmode'] = "ap"
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| 318 | # Default to 802.11b mode
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| 319 | ifacedump['mode'] = '11b'
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| 320 | if ifacedump['type'] in ['11a', '11b' '11g']:
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| 321 | ifacedump['mode'] = ifacedump['type']
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| 322 |
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| 323 | if not ifacedump.has_key('channel'):
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| 324 | if ifacedump['type'] == '11a':
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| 325 | ifacedump['channel'] = 36
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| 326 | else:
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| 327 | ifacedump['channel'] = 1
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| 328 |
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| 329 | # Allow special hacks at the back like wds and stuff
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| 330 | if not ifacedump.has_key('extra'):
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| 331 | ifacedump['extra'] = 'regdomain ETSI country NL'
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| 332 |
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| 333 | output += "wlans_%(interface)s='%(wlanif)s'\n" % ifacedump
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| 334 | output += ("create_args_%(wlanif)s='wlanmode %(wlanmode)s mode " +\
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| 335 | "%(mode)s ssid %(ssid)s %(extra)s channel %(channel)s'\n") % ifacedump
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| 336 |
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| 337 | elif ifacedump['type'] in ['ethernet', 'eth']:
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| 338 | # No special config needed besides IP
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| 339 | pass
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| 340 | else:
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| 341 | assert False, "Unknown type " + ifacedump['type']
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| 342 |
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| 343 | # Print IP address which needs to be assigned over here
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| 344 | output += "\n"
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| 345 | for iface,addrs in sorted(addrs_list.iteritems()):
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| 346 | output += "ipv4_addrs_%s='%s'\n" % (iface_map[iface], " ".join(addrs))
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| 347 |
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| 348 | return output
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| 349 |
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| 350 |
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| 351 |
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| 352 | def get_yaml(item):
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| 353 | """ Get configuration yaml for 'item'"""
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| 354 | gfile = os.path.join(NODE_DIR,item,'wleiden.yaml')
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| 355 |
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| 356 | f = open(gfile, 'r')
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| 357 | datadump = yaml.load(f,Loader=Loader)
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| 358 | f.close()
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| 359 |
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| 360 | return datadump
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| 361 |
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| 362 | def store_yaml(datadump):
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| 363 | """ Store configuration yaml for 'item'"""
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| 364 | gfile = os.path.join(NODE_DIR,item,'wleiden.yaml')
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| 365 |
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| 366 | f = open(gfile, 'w')
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| 367 | f.write(generate_wleiden_yaml(datadump))
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| 368 | f.close()
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| 369 |
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| 370 |
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| 371 |
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| 372 | def get_all_configs():
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| 373 | """ Get dict with key 'host' with all configs present """
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| 374 | configs = dict()
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| 375 | for host in get_hostlist():
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| 376 | datadump = get_yaml(host)
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| 377 | configs[host] = datadump
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| 378 | return configs
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| 379 |
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| 380 |
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| 381 | def get_interface_keys(config):
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| 382 | """ Quick hack to get all interface keys, later stage convert this to a iterator """
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| 383 | return [elem for elem in config.keys() if (elem.startswith('iface_') and not "lo0" in elem)]
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| 384 |
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| 385 |
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| 386 | def get_used_ips(configs):
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| 387 | """ Return array of all IPs used in config files"""
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| 388 | ip_list = []
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| 389 | for config in configs:
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| 390 | ip_list.append(config['masterip'])
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| 391 | for iface_key in get_interface_keys(config):
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| 392 | l = config[iface_key]['ip']
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| 393 | addr, mask = l.split('/')
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| 394 | # Special case do not process
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| 395 | if valid_addr(addr):
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| 396 | ip_list.append(addr)
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| 397 | else:
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| 398 | print "## IP '%s' in '%s' not valid" % (addr, config['nodename'])
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| 399 | return sorted(ip_list)
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| 400 |
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| 401 |
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| 402 |
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| 403 | def write_yaml(item, datadump):
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| 404 | """ Write configuration yaml for 'item'"""
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| 405 | gfile = os.path.join(NODE_DIR,item,'wleiden.yaml')
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| 406 |
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| 407 | f = open(gfile, 'w')
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| 408 | f.write(format_wleiden_yaml(datadump))
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| 409 | f.close()
|
|---|
| 410 |
|
|---|
| 411 |
|
|---|
| 412 |
|
|---|
| 413 | def generate_resolv_conf(datadump):
|
|---|
| 414 | """ Generate configuration file '/etc/resolv.conf' """
|
|---|
| 415 | output = generate_header("#");
|
|---|
| 416 | output += """\
|
|---|
| 417 | search wleiden.net
|
|---|
| 418 | # Try local (cache) first
|
|---|
| 419 | nameserver 127.0.0.1
|
|---|
| 420 |
|
|---|
| 421 | # Proxies are recursive nameservers
|
|---|
| 422 | # needs to be in resolv.conf for dnsmasq as well
|
|---|
| 423 | """ % datadump
|
|---|
| 424 |
|
|---|
| 425 | for proxy in get_proxylist():
|
|---|
| 426 | proxy_ip = get_yaml(proxy)['masterip']
|
|---|
| 427 | output += "nameserver %-15s # %s\n" % (proxy_ip, proxy)
|
|---|
| 428 | return output
|
|---|
| 429 |
|
|---|
| 430 |
|
|---|
| 431 |
|
|---|
| 432 | def format_yaml_value(value):
|
|---|
| 433 | """ Get yaml value in right syntax for outputting """
|
|---|
| 434 | if isinstance(value,str):
|
|---|
| 435 | output = "'%s'" % value
|
|---|
| 436 | else:
|
|---|
| 437 | output = value
|
|---|
| 438 | return output
|
|---|
| 439 |
|
|---|
| 440 |
|
|---|
| 441 |
|
|---|
| 442 | def format_wleiden_yaml(datadump):
|
|---|
| 443 | """ Special formatting to ensure it is editable"""
|
|---|
| 444 | output = "# Genesis config yaml style\n"
|
|---|
| 445 | output += "# vim:ts=2:et:sw=2:ai\n"
|
|---|
| 446 | output += "#\n"
|
|---|
| 447 | iface_keys = [elem for elem in datadump.keys() if elem.startswith('iface_')]
|
|---|
| 448 | for key in sorted(set(datadump.keys()) - set(iface_keys)):
|
|---|
| 449 | output += "%-10s: %s\n" % (key, format_yaml_value(datadump[key]))
|
|---|
| 450 |
|
|---|
| 451 | output += "\n\n"
|
|---|
| 452 |
|
|---|
| 453 | key_order = [ 'comment', 'interface', 'ip', 'desc', 'sdesc', 'mode', 'type',
|
|---|
| 454 | 'extra_type', 'channel', 'ssid', 'dhcp' ]
|
|---|
| 455 |
|
|---|
| 456 | for iface_key in sorted(iface_keys):
|
|---|
| 457 | output += "%s:\n" % iface_key
|
|---|
| 458 | for key in key_order + list(sorted(set(datadump[iface_key].keys()) - set(key_order))):
|
|---|
| 459 | if datadump[iface_key].has_key(key):
|
|---|
| 460 | output += " %-11s: %s\n" % (key, format_yaml_value(datadump[iface_key][key]))
|
|---|
| 461 | output += "\n\n"
|
|---|
| 462 |
|
|---|
| 463 | return output
|
|---|
| 464 |
|
|---|
| 465 |
|
|---|
| 466 |
|
|---|
| 467 | def generate_wleiden_yaml(datadump):
|
|---|
| 468 | """ Generate (petty) version of wleiden.yaml"""
|
|---|
| 469 | output = generate_header("#")
|
|---|
| 470 | output += format_wleiden_yaml(datadump)
|
|---|
| 471 | return output
|
|---|
| 472 |
|
|---|
| 473 |
|
|---|
| 474 | def generate_yaml(datadump):
|
|---|
| 475 | return generate_config(datadump['nodename'], "wleiden.yaml", datadump)
|
|---|
| 476 |
|
|---|
| 477 |
|
|---|
| 478 |
|
|---|
| 479 | def generate_config(node, config, datadump=None):
|
|---|
| 480 | """ Print configuration file 'config' of 'node' """
|
|---|
| 481 | output = ""
|
|---|
| 482 | try:
|
|---|
| 483 | # Load config file
|
|---|
| 484 | if datadump == None:
|
|---|
| 485 | datadump = get_yaml(node)
|
|---|
| 486 |
|
|---|
| 487 | # Preformat certain needed variables for formatting and push those into special object
|
|---|
| 488 | datadump_extra = copy.deepcopy(datadump)
|
|---|
| 489 | if not datadump_extra.has_key('domain'):
|
|---|
| 490 | datadump_extra['domain'] = 'wleiden.net'
|
|---|
| 491 | datadump_extra['nodename_lower'] = datadump_extra['nodename'].lower()
|
|---|
| 492 | datadump_extra['iface_keys'] = sorted([elem for elem in datadump.keys() if elem.startswith('iface_')])
|
|---|
| 493 |
|
|---|
| 494 | if config == 'wleiden.yaml':
|
|---|
| 495 | output += generate_wleiden_yaml(datadump)
|
|---|
| 496 | elif config == 'authorized_keys':
|
|---|
| 497 | f = open("global_keys", 'r')
|
|---|
| 498 | output += f.read()
|
|---|
| 499 | f.close()
|
|---|
| 500 | elif config == 'dnsmasq.conf':
|
|---|
| 501 | output += generate_dnsmasq_conf(datadump_extra)
|
|---|
| 502 | elif config == 'rc.conf.local':
|
|---|
| 503 | output += generate_rc_conf_local(datadump_extra)
|
|---|
| 504 | elif config == 'resolv.conf':
|
|---|
| 505 | output += generate_resolv_conf(datadump_extra)
|
|---|
| 506 | else:
|
|---|
| 507 | assert False, "Config not found!"
|
|---|
| 508 | except IOError, e:
|
|---|
| 509 | output += "[ERROR] Config file not found"
|
|---|
| 510 | return output
|
|---|
| 511 |
|
|---|
| 512 |
|
|---|
| 513 |
|
|---|
| 514 | def process_cgi_request():
|
|---|
| 515 | """ When calling from CGI """
|
|---|
| 516 | # Update repository if requested
|
|---|
| 517 | form = cgi.FieldStorage()
|
|---|
| 518 | if form.getvalue("action") == "update":
|
|---|
| 519 | print "Refresh: 5; url=."
|
|---|
| 520 | print "Content-type:text/plain\r\n\r\n",
|
|---|
| 521 | print "[INFO] Updating subverion, please wait..."
|
|---|
| 522 | print subprocess.Popen(['svn', 'up', NODE_DIR], stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0],
|
|---|
| 523 | print "[INFO] All done, redirecting in 5 seconds"
|
|---|
| 524 | sys.exit(0)
|
|---|
| 525 |
|
|---|
| 526 |
|
|---|
| 527 | uri = os.environ['PATH_INFO'].strip('/').split('/')
|
|---|
| 528 | output = ""
|
|---|
| 529 | if not uri[0]:
|
|---|
| 530 | output += "Content-type:text/html\r\n\r\n"
|
|---|
| 531 | output += generate_title(get_hostlist())
|
|---|
| 532 | elif len(uri) == 1:
|
|---|
| 533 | output += "Content-type:text/plain\r\n\r\n"
|
|---|
| 534 | output += generate_node(uri[0])
|
|---|
| 535 | elif len(uri) == 2:
|
|---|
| 536 | output += "Content-type:text/plain\r\n\r\n"
|
|---|
| 537 | output += generate_config(uri[0], uri[1])
|
|---|
| 538 | else:
|
|---|
| 539 | assert False, "Invalid option"
|
|---|
| 540 | print output
|
|---|
| 541 |
|
|---|
| 542 | def get_fqdn(datadump):
|
|---|
| 543 | # Proxy naming convention is special
|
|---|
| 544 | if datadump['nodetype'] == 'Proxy':
|
|---|
| 545 | fqdn = datadump['nodename']
|
|---|
| 546 | else:
|
|---|
| 547 | # By default the full name is listed and also a shortname CNAME for easy use.
|
|---|
| 548 | fqdn = datadump['nodetype'] + datadump['nodename']
|
|---|
| 549 | return(fqdn)
|
|---|
| 550 |
|
|---|
| 551 |
|
|---|
| 552 |
|
|---|
| 553 | def make_dns(output_dir = 'dns'):
|
|---|
| 554 | items = dict()
|
|---|
| 555 |
|
|---|
| 556 | # hostname is key, IP is value
|
|---|
| 557 | wleiden_zone = dict()
|
|---|
| 558 | wleiden_cname = dict()
|
|---|
| 559 |
|
|---|
| 560 | pool = dict()
|
|---|
| 561 | for node in get_hostlist():
|
|---|
| 562 | datadump = get_yaml(node)
|
|---|
| 563 |
|
|---|
| 564 | # Proxy naming convention is special
|
|---|
| 565 | fqdn = get_fqdn(datadump)
|
|---|
| 566 | if datadump['nodetype'] == 'CNode':
|
|---|
| 567 | wleiden_cname[datadump['nodename']] = fqdn
|
|---|
| 568 |
|
|---|
| 569 | wleiden_zone[fqdn] = datadump['masterip']
|
|---|
| 570 |
|
|---|
| 571 | # Hacking to get proper DHCP IPs and hostnames
|
|---|
| 572 | for iface_key in get_interface_keys(datadump):
|
|---|
| 573 | iface_name = datadump[iface_key]['interface'].replace(':',"-alias-")
|
|---|
| 574 | (ip, netmask) = datadump[iface_key]['ip'].split('/')
|
|---|
| 575 | try:
|
|---|
| 576 | (dhcp_start, dhcp_stop) = datadump[iface_key]['dhcp'].split('-')
|
|---|
| 577 | datadump[iface_key]['subnet'] = netmask2subnet(netmask)
|
|---|
| 578 | dhcp_part = ".".join(ip.split('.')[0:3])
|
|---|
| 579 | if ip != datadump['masterip']:
|
|---|
| 580 | wleiden_zone["dhcp-gateway-%s.%s" % (iface_name, fqdn)] = ip
|
|---|
| 581 | for i in range(int(dhcp_start), int(dhcp_stop) + 1):
|
|---|
| 582 | wleiden_zone["dhcp-%s-%s.%s" % (i, iface_name, fqdn)] = "%s.%s" % (dhcp_part, i)
|
|---|
| 583 | except (AttributeError, ValueError):
|
|---|
| 584 | # First push it into a pool, to indentify the counter-part later on
|
|---|
| 585 | addr = parseaddr(ip)
|
|---|
| 586 | netmask = int(netmask)
|
|---|
| 587 | addr = addr & ~((1 << (32 - netmask)) - 1)
|
|---|
| 588 | if pool.has_key(addr):
|
|---|
| 589 | pool[addr] += [(iface_name, fqdn, ip)]
|
|---|
| 590 | else:
|
|---|
| 591 | pool[addr] = [(iface_name, fqdn, ip)]
|
|---|
| 592 | continue
|
|---|
| 593 |
|
|---|
| 594 |
|
|---|
| 595 | def pool_to_name(node, pool_members):
|
|---|
| 596 | """Convert the joined name to a usable pool name"""
|
|---|
| 597 |
|
|---|
| 598 | # Get rid of the own entry
|
|---|
| 599 | pool_members = list(set(pool_members) - set([fqdn]))
|
|---|
| 600 |
|
|---|
| 601 | target = oldname = ''
|
|---|
| 602 | for node in sorted(pool_members):
|
|---|
| 603 | (name, number) = re.match('^([A-Za-z]+)([0-9]*)$',node).group(1,2)
|
|---|
| 604 | target += "-" + number if name == oldname else "-" + node if target else node
|
|---|
| 605 | oldname = name
|
|---|
| 606 |
|
|---|
| 607 | return target
|
|---|
| 608 |
|
|---|
| 609 |
|
|---|
| 610 | # Automatic naming convention of interlinks namely 2 + remote.lower()
|
|---|
| 611 | for (key,value) in pool.iteritems():
|
|---|
| 612 | if len(value) == 1:
|
|---|
| 613 | (iface_name, fqdn, ip) = value[0]
|
|---|
| 614 | wleiden_zone["2unused-%s.%s" % (iface_name, fqdn)] = ip
|
|---|
| 615 | elif len(value) == 2:
|
|---|
| 616 | (a_iface_name, a_fqdn, a_ip) = value[0]
|
|---|
| 617 | (b_iface_name, b_fqdn, b_ip) = value[1]
|
|---|
| 618 | wleiden_zone["2%s.%s" % (b_fqdn,a_fqdn)] = a_ip
|
|---|
| 619 | wleiden_zone["2%s.%s" % (a_fqdn,b_fqdn)] = b_ip
|
|---|
| 620 | else:
|
|---|
| 621 | pool_members = [k[1] for k in value]
|
|---|
| 622 | for item in value:
|
|---|
| 623 | (iface_name, fqdn, ip) = item
|
|---|
| 624 | pool_name = "2pool-" + showaddr(key).replace('.','-') + "-" + pool_to_name(fqdn,pool_members)
|
|---|
| 625 | wleiden_zone["%s.%s" % (pool_name, fqdn)] = ip
|
|---|
| 626 |
|
|---|
| 627 | # Include static DNS entries
|
|---|
| 628 | # XXX: Should they override the autogenerated results?
|
|---|
| 629 | # XXX: Convert input to yaml more useable.
|
|---|
| 630 | # Format:
|
|---|
| 631 | ##; this is a comment
|
|---|
| 632 | ## roomburgh=CNodeRoomburgh1
|
|---|
| 633 | ## apkerk1.CNodeVosko=172.17.176.8 ;this as well
|
|---|
| 634 | dns = yaml.load(open(os.path.join(NODE_DIR,'../dns/staticDNS.yaml'),'r'))
|
|---|
| 635 | for comment, block in dns.iteritems():
|
|---|
| 636 | for k,v in block.iteritems():
|
|---|
| 637 | if valid_addr(v):
|
|---|
| 638 | wleiden_zone[k] = v
|
|---|
| 639 | else:
|
|---|
| 640 | wleiden_cname[k] = v
|
|---|
| 641 |
|
|---|
| 642 | details = dict()
|
|---|
| 643 | # 24 updates a day allowed
|
|---|
| 644 | details['serial'] = time.strftime('%Y%m%d%H')
|
|---|
| 645 |
|
|---|
| 646 | dns_header = '''
|
|---|
| 647 | $TTL 3h
|
|---|
| 648 | %(zone)s. SOA sunny.wleiden.net. beheer.lijst.wirelessleiden.nl. ( %(serial)s 1d 12h 1w 3h )
|
|---|
| 649 | ; Serial, Refresh, Retry, Expire, Neg. cache TTL
|
|---|
| 650 |
|
|---|
| 651 | NS sunny.wleiden.net.
|
|---|
| 652 | \n'''
|
|---|
| 653 |
|
|---|
| 654 |
|
|---|
| 655 | if not os.path.isdir('dns'):
|
|---|
| 656 | os.makedirs('dns')
|
|---|
| 657 | details['zone'] = 'wleiden.net'
|
|---|
| 658 | f = open(os.path.join(output_dir,"db." + details['zone']), "w")
|
|---|
| 659 | f.write(dns_header % details)
|
|---|
| 660 |
|
|---|
| 661 | for host,ip in wleiden_zone.iteritems():
|
|---|
| 662 | if valid_addr(ip):
|
|---|
| 663 | f.write("%s.wleiden.net. IN A %s \n" % (host.lower(), ip))
|
|---|
| 664 | for source,dest in wleiden_cname.iteritems():
|
|---|
| 665 | f.write("%s.wleiden.net. IN CNAME %s.wleiden.net.\n" % (source.lower(), dest.lower()))
|
|---|
| 666 | f.close()
|
|---|
| 667 |
|
|---|
| 668 | # Create whole bunch of specific sub arpa zones. To keep it compliant
|
|---|
| 669 | for s in range(16,32):
|
|---|
| 670 | details['zone'] = '%i.172.in-addr.arpa' % s
|
|---|
| 671 | f = open(os.path.join(output_dir,"db." + details['zone']), "w")
|
|---|
| 672 | f.write(dns_header % details)
|
|---|
| 673 |
|
|---|
| 674 | #XXX: Not effient, fix to proper data structure and do checks at other
|
|---|
| 675 | # stages
|
|---|
| 676 | for host,ip in wleiden_zone.iteritems():
|
|---|
| 677 | if valid_addr(ip):
|
|---|
| 678 | if int(ip.split('.')[1]) == s:
|
|---|
| 679 | rev_ip = '.'.join(reversed(ip.split('.')))
|
|---|
| 680 | f.write("%s.in-addr.arpa. IN PTR %s.wleiden.net.\n" % (rev_ip.lower(), host.lower()))
|
|---|
| 681 | f.close()
|
|---|
| 682 |
|
|---|
| 683 |
|
|---|
| 684 | def usage():
|
|---|
| 685 | print """Usage: %s <standalone [port] |test [test arguments]|static|dns>
|
|---|
| 686 | Examples:
|
|---|
| 687 | \tdns [outputdir] = Generate BIND compliant zone files in dns.
|
|---|
| 688 | \tstandalone = Run configurator webserver [default port=8000]
|
|---|
| 689 | \tstatic = Generate all config files and store on disk
|
|---|
| 690 | \t with format ./static/%%NODE%%/%%FILE%%
|
|---|
| 691 | \ttest CNodeRick dnsmasq.conf = Receive output of CGI script
|
|---|
| 692 | \t for arguments CNodeRick/dnsmasq.conf
|
|---|
| 693 | """
|
|---|
| 694 | exit(0)
|
|---|
| 695 |
|
|---|
| 696 |
|
|---|
| 697 |
|
|---|
| 698 | def main():
|
|---|
| 699 | """Hard working sub"""
|
|---|
| 700 | # Allow easy hacking using the CLI
|
|---|
| 701 | if not os.environ.has_key('PATH_INFO'):
|
|---|
| 702 | if len(sys.argv) < 2:
|
|---|
| 703 | usage()
|
|---|
| 704 |
|
|---|
| 705 | if sys.argv[1] == "standalone":
|
|---|
| 706 | import SocketServer
|
|---|
| 707 | import CGIHTTPServer
|
|---|
| 708 | # CGI does not go backward, little hack to get ourself in the right working directory.
|
|---|
| 709 | os.chdir(os.path.dirname(__file__) + '/..')
|
|---|
| 710 | try:
|
|---|
| 711 | PORT = int(sys.argv[2])
|
|---|
| 712 | except (IndexError,ValueError):
|
|---|
| 713 | PORT = 8000
|
|---|
| 714 |
|
|---|
| 715 | class MyCGIHTTPRequestHandler(CGIHTTPServer.CGIHTTPRequestHandler):
|
|---|
| 716 | """ Serve this CGI from the root of the webserver """
|
|---|
| 717 | def is_cgi(self):
|
|---|
| 718 | if "favicon" in self.path:
|
|---|
| 719 | return False
|
|---|
| 720 |
|
|---|
| 721 | self.cgi_info = (__file__, self.path)
|
|---|
| 722 | self.path = ''
|
|---|
| 723 | return True
|
|---|
| 724 | handler = MyCGIHTTPRequestHandler
|
|---|
| 725 | httpd = SocketServer.TCPServer(("", PORT), handler)
|
|---|
| 726 | httpd.server_name = 'localhost'
|
|---|
| 727 | httpd.server_port = PORT
|
|---|
| 728 |
|
|---|
| 729 | print "serving at port", PORT
|
|---|
| 730 | try:
|
|---|
| 731 | httpd.serve_forever()
|
|---|
| 732 | except KeyboardInterrupt:
|
|---|
| 733 | httpd.shutdown()
|
|---|
| 734 | elif sys.argv[1] == "test":
|
|---|
| 735 | os.environ['PATH_INFO'] = "/".join(sys.argv[2:])
|
|---|
| 736 | os.environ['SCRIPT_NAME'] = __file__
|
|---|
| 737 | process_cgi_request()
|
|---|
| 738 | elif sys.argv[1] == "static":
|
|---|
| 739 | items = dict()
|
|---|
| 740 | for node in get_hostlist():
|
|---|
| 741 | items['node'] = node
|
|---|
| 742 | items['wdir'] = "./static/%(node)s" % items
|
|---|
| 743 | if not os.path.isdir(items['wdir']):
|
|---|
| 744 | os.makedirs(items['wdir'])
|
|---|
| 745 | datadump = get_yaml(node)
|
|---|
| 746 | for config in files:
|
|---|
| 747 | items['config'] = config
|
|---|
| 748 | print "## Generating %(node)s %(config)s" % items
|
|---|
| 749 | f = open("%(wdir)s/%(config)s" % items, "w")
|
|---|
| 750 | f.write(generate_config(node, config, datadump))
|
|---|
| 751 | f.close()
|
|---|
| 752 | elif sys.argv[1] == "dns":
|
|---|
| 753 | make_dns(sys.argv[2] if len(sys.argv) > 2 else 'dns')
|
|---|
| 754 | elif sys.argv[1] == "cleanup":
|
|---|
| 755 | # First generate all datadumps
|
|---|
| 756 | datadumps = dict()
|
|---|
| 757 | for host in get_hostlist():
|
|---|
| 758 | datadump = get_yaml(host)
|
|---|
| 759 | datadumps[get_fqdn(datadump)] = datadump
|
|---|
| 760 |
|
|---|
| 761 | datadump['latitude'], datadump['longitude'] = rdnap.rd2etrs(datadump['rdnap_x'], datadump['rdnap_y'])
|
|---|
| 762 | write_yaml(host, datadump)
|
|---|
| 763 | else:
|
|---|
| 764 | usage()
|
|---|
| 765 | else:
|
|---|
| 766 | cgitb.enable()
|
|---|
| 767 | process_cgi_request()
|
|---|
| 768 |
|
|---|
| 769 |
|
|---|
| 770 | if __name__ == "__main__":
|
|---|
| 771 | main()
|
|---|
