From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 19 Mar 2017 19:13:26 +0000 (+0000)
Subject: wip
X-Git-Tag: hippotat/1.0.0~55^2~243
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=hippotat.git;a=commitdiff_plain;h=e75e9c176dde9a52258bc43631c8a4a2973d59fe

wip
---

diff --git a/server b/server
index 6c229a9..9d83386 100755
--- a/server
+++ b/server
@@ -5,7 +5,9 @@ from twisted.web.resource import Resource
 from twisted.web.server import NOT_DONE_YET
 from twisted.internet import reactor
 
-import configparser
+from optparse import OptionParser
+from configparser import ConfigParser
+from configparser import NoOptionError
 import ipaddress
 
 import collections
@@ -28,12 +30,21 @@ def ipnetwork(input):
     r = ipaddress.IPv6Network(input)
   return r
 
-defcfg = u'''
+defcfg = '''
 [DEFAULT]
 max_batch_down = 65536
 max_queue_time = 10
 max_request_time = 54
 
+[virtual]
+mtu = 1500
+# network
+# [host]
+# [relay]
+
+[server]
+ipif_program = userv root ipif %(host),%(relay),%(mtu),slip %(network)
+
 [limits]
 max_batch_down = 262144
 max_queue_time = 121
@@ -136,13 +147,25 @@ class Client():
 
 def process_cfg():
   global network
-  global ourself
+  global host
+  global relay
 
   network = ipnetwork(cfg.get('virtual','network'))
+  if network.num_addresses < 3 + 2:
+    raise ValueError('network needs at least 2^3 addresses')
+
   try:
-    ourself = cfg.get('virtual','server')
-  except ConfigParser.NoOptionError:
-    ourself = network.hosts().next()
+    host = cfg.get('virtual','host')
+  except NoOptionError:
+    host = network.hosts().next()
+
+  try:
+    relay = cfg.get('virtual','relay')
+  except OptionError:
+    for search in network.hosts():
+      if search = host: continue
+      relay = search
+      break
 
   for cs in cfg.sections():
     if not (':' in cs or '.' in cs): continue
@@ -175,3 +198,14 @@ class FormPage(Resource):
 
     c.process_arriving_data(d)
     c.new_request(request)
+
+def startup():
+  op = OptionParser()
+  op.add_option('-c', '--config', dest='configfile',
+                default='/etc/hippottd/server.conf')
+  global opts
+  (opts, args) = op.parse_args()
+  if len(args): op.error('no non-option arguments please')
+
+  cfg = ConfigParser()
+