#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 {
static const int kDefaultMinPort = 12400;
static const int kDefaultMaxPort = 12409;
- enum NatTraversalMode {
- // Active NAT traversal using STUN and relay servers.
- NAT_TRAVERSAL_ENABLED,
-
+ 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,
+ NAT_TRAVERSAL_DISABLED = 0x0,
+
+ // Allow outgoing connections, even when STUN and RELAY are not enabled.
+ NAT_TRAVERSAL_OUTGOING = 0x1,
- // Don't use STUN or relay servers but make outgoing connections.
- NAT_TRAVERSAL_OUTGOING,
+ // 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()
- : nat_traversal_mode(NAT_TRAVERSAL_DISABLED),
+ : flags(NAT_TRAVERSAL_DISABLED),
min_port(0),
max_port(0) {
+ DCHECK(!(flags & (NAT_TRAVERSAL_STUN | NAT_TRAVERSAL_RELAY)) ||
+ (flags & NAT_TRAVERSAL_OUTGOING));
}
- explicit NetworkSettings(NatTraversalMode nat_traversal_mode)
- : nat_traversal_mode(nat_traversal_mode),
+ explicit NetworkSettings(uint32 flags)
+ : flags(flags),
min_port(0),
max_port(0) {
}
- NatTraversalMode nat_traversal_mode;
+ // 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.