Cleaner handling of reading lines for routes

TODO

@@ -8,20 +8,14 @@ To be done :
         favorise most used roads
 
     Handle LAN internally in order not to have catastrophic results ....
-        the first thing to do is to include the LAN iface on the intarfaces
-        given to babel => pb : someone who has a lan acces to our network can 
-        provide false informations. Needs of signature
-        If it is not sufficient, we could use avahi (dm-dns for linux)
+        pb : someone who has a lan acces to our network can provide false
+        informations. Needs of signature
+        => yeah it is a security problem to fix
 
     Write docstrings for all class/methods/functions
 
 
 To be discussed:
-    G : There is a blacklist system now ( blacklisted prefixes are deleted from
-        the peers database ). Since all nodes whose packets are routed through
-        the local network are blacklisted, I think we should reset the blacklist
-        from time to time....
-
     U : Babel seems to be very long to establish the routes : maybe we should
         tell him thant we are not on a wired network but on a mobile network ?
     G : babel establish routes quickly enough i'd say. There are two new

db.py

@@ -135,3 +135,4 @@ class PeerManager:
         else:
             utils.log('Unknow message recieved from the openvpn pipe : '
                     + msg, 1)
+

tunnel.py

@@ -5,7 +5,6 @@ log = None
 smooth = 0.3    # this is used to smooth the traffic sampling. Lower value
                  # mean more smooth
 
-
 # Be carfull the refresh interval should let the routes be established
 
 
@@ -153,15 +152,13 @@ class TunnelManager:
         self._peer_db.clear_blacklist(0)
         for iface in self._iface_to_prefix.keys():
             self._connection_dict[self._iface_to_prefix[iface]].routes = 0
-        f = open('/proc/net/ipv6_route', 'r')
-        for line in f:
-            ip, subnet_size, iface = struct.unpack('32s x 2s 106x %ss x'
-                % (len(line) - 142), line)
-            ip = bin(int(ip, 16))[2:].rjust(128, '0')
+        for line in open('/proc/net/ipv6_route'):
+            line = line.split()
+            ip = bin(int(line[0], 16))[2:].rjust(128, '0')
 
             if ip.startswith(self._network):
-                iface = iface.strip()
-                subnet_size = int(subnet_size, 16)
+                iface = line[-1]
+                subnet_size = int(line[1], 16)
                 utils.log('Route on iface %s detected to %s/%s'
                         % (iface, ip, subnet_size), 8)
                 if iface in self._iface_to_prefix.keys():