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-rw-r--r--node/Constants.hpp11
-rw-r--r--node/Node.cpp2
-rw-r--r--node/Peer.cpp3
-rw-r--r--node/Peer.hpp2
-rw-r--r--node/SocketManager.cpp2
-rw-r--r--node/SocketManager.hpp3
-rw-r--r--node/Switch.cpp2
-rw-r--r--node/Topology.hpp2
8 files changed, 24 insertions, 3 deletions
diff --git a/node/Constants.hpp b/node/Constants.hpp
index 7650de8b..620f9b0d 100644
--- a/node/Constants.hpp
+++ b/node/Constants.hpp
@@ -228,7 +228,7 @@
/**
* Default number of bits in multicast propagation prefix
*/
-#define ZT_DEFAULT_MULTICAST_PREFIX_BITS 1
+#define ZT_DEFAULT_MULTICAST_PREFIX_BITS 2
/**
* Default max depth (TTL) for multicast propagation
@@ -272,8 +272,10 @@
*
* This should be lower than the UDP conversation entry timeout in most
* stateful firewalls.
+ *
+ * Uncomment to disable firewall openers.
*/
-#define ZT_FIREWALL_OPENER_DELAY 30000
+//#define ZT_FIREWALL_OPENER_DELAY 30000
/**
* Number of hops to open via firewall opener packets
@@ -284,7 +286,7 @@
* 2 should permit traversal of double-NAT configurations, such as from inside
* a VM running behind local NAT on a host that is itself behind NAT.
*/
-#define ZT_FIREWALL_OPENER_HOPS 2
+//#define ZT_FIREWALL_OPENER_HOPS 2
/**
* Delay between requests for updated network autoconf information
@@ -363,6 +365,9 @@
/**
* Delay in milliseconds between firewall opener and real packet for NAT-t
+ *
+ * If firewall openers are disbled, it just waits this long before sending
+ * NAT-t packets.
*/
#define ZT_RENDEZVOUS_NAT_T_DELAY 500
diff --git a/node/Node.cpp b/node/Node.cpp
index f2e6b3e4..7500e736 100644
--- a/node/Node.cpp
+++ b/node/Node.cpp
@@ -656,7 +656,9 @@ Node::ReasonForTermination Node::run()
lastPingCheck = now;
try {
_r->topology->eachPeer(Topology::PingPeersThatNeedPing(_r,now));
+#ifdef ZT_FIREWALL_OPENER_DELAY
_r->topology->eachPeer(Topology::OpenPeersThatNeedFirewallOpener(_r,now));
+#endif
} catch (std::exception &exc) {
LOG("unexpected exception running ping check cycle: %s",exc.what());
} catch ( ... ) {
diff --git a/node/Peer.cpp b/node/Peer.cpp
index e61631e2..b10cc1f2 100644
--- a/node/Peer.cpp
+++ b/node/Peer.cpp
@@ -25,6 +25,7 @@
* LLC. Start here: http://www.zerotier.com/
*/
+#include "Constants.hpp"
#include "Peer.hpp"
#include "Switch.hpp"
#include "AntiRecursion.hpp"
@@ -180,6 +181,7 @@ Path::Type Peer::send(const RuntimeEnvironment *_r,const void *data,unsigned int
return Path::PATH_TYPE_NULL;
}
+#ifdef ZT_FIREWALL_OPENER_DELAY
bool Peer::sendFirewallOpener(const RuntimeEnvironment *_r,uint64_t now)
{
bool sent = false;
@@ -194,6 +196,7 @@ bool Peer::sendFirewallOpener(const RuntimeEnvironment *_r,uint64_t now)
return sent;
}
+#endif
bool Peer::sendPing(const RuntimeEnvironment *_r,uint64_t now)
{
diff --git a/node/Peer.hpp b/node/Peer.hpp
index edb66e21..ce0b79a6 100644
--- a/node/Peer.hpp
+++ b/node/Peer.hpp
@@ -142,6 +142,7 @@ public:
*/
Path::Type send(const RuntimeEnvironment *_r,const void *data,unsigned int len,uint64_t now);
+#ifdef ZT_FIREWALL_OPENER_DELAY
/**
* Send firewall opener to all UDP paths
*
@@ -150,6 +151,7 @@ public:
* @return True if send appears successful for at least one address type
*/
bool sendFirewallOpener(const RuntimeEnvironment *_r,uint64_t now);
+#endif
/**
* Send HELLO to a peer via all direct paths available
diff --git a/node/SocketManager.cpp b/node/SocketManager.cpp
index 6f491012..37e83b5a 100644
--- a/node/SocketManager.cpp
+++ b/node/SocketManager.cpp
@@ -463,6 +463,7 @@ bool SocketManager::send(const InetAddress &to,bool tcp,bool autoConnectTcp,cons
return false;
}
+#ifdef ZT_FIREWALL_OPENER_DELAY
bool SocketManager::sendFirewallOpener(const InetAddress &to,int hopLimit)
{
if (to.isV4()) {
@@ -474,6 +475,7 @@ bool SocketManager::sendFirewallOpener(const InetAddress &to,int hopLimit)
}
return false;
}
+#endif
void SocketManager::poll(unsigned long timeout)
{
diff --git a/node/SocketManager.hpp b/node/SocketManager.hpp
index 40a0c1df..8dee7e91 100644
--- a/node/SocketManager.hpp
+++ b/node/SocketManager.hpp
@@ -35,6 +35,7 @@
#include <stdexcept>
#include "Constants.hpp"
+
#include "SharedPtr.hpp"
#include "InetAddress.hpp"
#include "Socket.hpp"
@@ -108,7 +109,9 @@ public:
* @param to Destination address
* @param hopLimit IP TTL
*/
+#ifdef ZT_FIREWALL_OPENER_DELAY
bool sendFirewallOpener(const InetAddress &to,int hopLimit);
+#endif
/**
* Perform I/O polling operation (e.g. select())
diff --git a/node/Switch.cpp b/node/Switch.cpp
index 9b0e3e6e..1a28d4a5 100644
--- a/node/Switch.cpp
+++ b/node/Switch.cpp
@@ -461,7 +461,9 @@ bool Switch::unite(const Address &p1,const Address &p2,bool force)
void Switch::contact(const SharedPtr<Peer> &peer,const InetAddress &atAddr)
{
+#ifdef ZT_FIREWALL_OPENER_HOPS
_r->sm->sendFirewallOpener(atAddr,ZT_FIREWALL_OPENER_HOPS);
+#endif
{
Mutex::Lock _l(_contactQueue_m);
diff --git a/node/Topology.hpp b/node/Topology.hpp
index 293ac446..0585ad1f 100644
--- a/node/Topology.hpp
+++ b/node/Topology.hpp
@@ -194,6 +194,7 @@ public:
f(*this,*p);
}
+#ifdef ZT_FIREWALL_OPENER_DELAY
/**
* Function object to collect peers that need a firewall opener sent
*/
@@ -214,6 +215,7 @@ public:
uint64_t _now;
const RuntimeEnvironment *_r;
};
+#endif
/**
* Pings all peers that need a ping sent, excluding supernodes