remoting/jingle_glue/network_settings.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef REMOTING_JINGLE_GLUE_NETWORK_SETTINGS_H_
   6 #define REMOTING_JINGLE_GLUE_NETWORK_SETTINGS_H_
   7
   8 namespace remoting {
   9
  10 struct NetworkSettings {
  11
  12   // When hosts are configured with NAT traversal disabled they will
  13   // typically also limit their P2P ports to this range, so that
  14   // sessions may be blocked or un-blocked via firewall rules.
  15   static const int kDefaultMinPort = 12400;
  16   static const int kDefaultMaxPort = 12409;
  17
  18   enum NatTraversalMode {
  19     // Active NAT traversal using STUN and relay servers.
  20     NAT_TRAVERSAL_ENABLED,
  21
  22     // Don't use STUN or relay servers. Accept incoming P2P connection
  23     // attempts, but don't initiate any. This ensures that the peer is
  24     // on the same network. Note that connection will always fail if
  25     // both ends use this mode.
  26     NAT_TRAVERSAL_DISABLED,
  27
  28     // Don't use STUN or relay servers but make outgoing connections.
  29     NAT_TRAVERSAL_OUTGOING,
  30   };
  31
  32   NetworkSettings()
  33       : nat_traversal_mode(NAT_TRAVERSAL_DISABLED),
  34         min_port(0),
  35         max_port(0) {
  36   }
  37
  38   explicit NetworkSettings(NatTraversalMode nat_traversal_mode)
  39       : nat_traversal_mode(nat_traversal_mode),
  40         min_port(0),
  41         max_port(0) {
  42   }
  43
  44   NatTraversalMode nat_traversal_mode;
  45
  46   // |min_port| and |max_port| specify range (inclusive) of ports used by
  47   // P2P sessions. Any port can be used when both values are set to 0.
  48   int min_port;
  49   int max_port;
  50 };
  51
  52 }  // namespace remoting
  53
  54 #endif  // REMOTING_HOST_NETWORK_SETTINGS_H_