| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_JINGLE_GLUE_NETWORK_SETTINGS_H_ |
| #define REMOTING_JINGLE_GLUE_NETWORK_SETTINGS_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/logging.h" |
| |
| namespace remoting { |
| |
| struct NetworkSettings { |
| |
| // When hosts are configured with NAT traversal disabled they will |
| // typically also limit their P2P ports to this range, so that |
| // sessions may be blocked or un-blocked via firewall rules. |
| static const int kDefaultMinPort = 12400; |
| static const int kDefaultMaxPort = 12409; |
| |
| enum Flags { |
| // Don't use STUN or relay servers. Accept incoming P2P connection |
| // attempts, but don't initiate any. This ensures that the peer is |
| // on the same network. Note that connection will always fail if |
| // both ends use this mode. |
| NAT_TRAVERSAL_DISABLED = 0x0, |
| |
| // Allow outgoing connections, even when STUN and RELAY are not enabled. |
| NAT_TRAVERSAL_OUTGOING = 0x1, |
| |
| // Active NAT traversal using STUN. |
| NAT_TRAVERSAL_STUN = 0x2, |
| |
| // Allow the use of relay servers when a direct connection is not available. |
| NAT_TRAVERSAL_RELAY = 0x4, |
| |
| // Active NAT traversal using STUN and relay servers. |
| NAT_TRAVERSAL_FULL = NAT_TRAVERSAL_STUN | NAT_TRAVERSAL_RELAY | |
| NAT_TRAVERSAL_OUTGOING |
| }; |
| |
| NetworkSettings() |
| : flags(NAT_TRAVERSAL_DISABLED), |
| min_port(0), |
| max_port(0) { |
| DCHECK(!(flags & (NAT_TRAVERSAL_STUN | NAT_TRAVERSAL_RELAY)) || |
| (flags & NAT_TRAVERSAL_OUTGOING)); |
| } |
| |
| explicit NetworkSettings(uint32 flags) |
| : flags(flags), |
| min_port(0), |
| max_port(0) { |
| } |
| |
| // Parse string in the form "<min_port>-<max_port>". E.g. "12400-12409". |
| // Returns true if string was parsed successfuly. |
| static bool ParsePortRange(const std::string& port_range, |
| int* out_min_port, |
| int* out_max_port); |
| |
| uint32 flags; |
| |
| // |min_port| and |max_port| specify range (inclusive) of ports used by |
| // P2P sessions. Any port can be used when both values are set to 0. |
| int min_port; |
| int max_port; |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_HOST_NETWORK_SETTINGS_H_ |