From 34e2ad0dfc3207252cd27c865a4eff0d6b8388b0 Mon Sep 17 00:00:00 2001
From: Adam Ierymenko <adam.ierymenko@gmail.com>
Date: Wed, 24 Jan 2018 14:43:04 -0500
Subject: [PATCH] Stub out NetworkConfig for GitHub issue #666

---
 node/NetworkConfig.hpp | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/node/NetworkConfig.hpp b/node/NetworkConfig.hpp
index 4f3432063..b67641075 100644
--- a/node/NetworkConfig.hpp
+++ b/node/NetworkConfig.hpp
@@ -93,15 +93,20 @@
 #define ZT_NETWORKCONFIG_FLAG_DISABLE_COMPRESSION 0x0000000000000010ULL
 
 /**
- * Device is an active bridge
+ * Device can bridge to other Ethernet networks and gets unknown recipient multicasts
  */
 #define ZT_NETWORKCONFIG_SPECIALIST_TYPE_ACTIVE_BRIDGE 0x0000020000000000ULL
 
 /**
- * Anchors are stable devices on this network that can cache multicast info, etc.
+ * Anchors are stable devices on this network that can act like roots when none are up
  */
 #define ZT_NETWORKCONFIG_SPECIALIST_TYPE_ANCHOR 0x0000040000000000ULL
 
+/**
+ * Designated multicast replicators replicate multicast in place of sender-side replication
+ */
+#define ZT_NETWORKCONFIG_SPECIALIST_TYPE_MULTICAST_REPLICATOR 0x0000080000000000ULL
+
 namespace ZeroTier {
 
 // Dictionary capacity needed for max size network config
@@ -312,16 +317,16 @@ public:
 	}
 
 	/**
-	 * @param a Address to check
-	 * @return True if address is an anchor
+	 * @return ZeroTier addresses of "anchor" devices on this network
 	 */
-	inline bool isAnchor(const Address &a) const
+	inline std::vector<Address> multicastReplicators() const
 	{
+		std::vector<Address> r;
 		for(unsigned int i=0;i<specialistCount;++i) {
-			if ((a == specialists[i])&&((specialists[i] & ZT_NETWORKCONFIG_SPECIALIST_TYPE_ANCHOR) != 0))
-				return true;
+			if ((specialists[i] & ZT_NETWORKCONFIG_SPECIALIST_TYPE_MULTICAST_REPLICATOR) != 0)
+				r.push_back(Address(specialists[i]));
 		}
-		return false;
+		return r;
 	}
 
 	/**