From be6b61b1bc7e207144faf99a2aeda874ff3a0055 Mon Sep 17 00:00:00 2001
From: Adam Ierymenko <adam.ierymenko@gmail.com>
Date: Thu, 14 Aug 2014 18:06:18 -0400
Subject: [PATCH] Accept supernode dictionaries in Topology, also fix (unused)
 field name in one of these.

---
 node/Topology.cpp                   | 22 ++++++++++++++++++++++
 node/Topology.hpp                   | 11 +++++++++++
 root-topology/supernodes/9d219039f3 |  2 +-
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/node/Topology.cpp b/node/Topology.cpp
index d74179fec..4fae1372e 100644
--- a/node/Topology.cpp
+++ b/node/Topology.cpp
@@ -30,6 +30,7 @@
 #include "Topology.hpp"
 #include "NodeConfig.hpp"
 #include "CMWC4096.hpp"
+#include "Dictionary.hpp"
 
 #define ZT_PEER_WRITE_BUF_SIZE 131072
 
@@ -75,6 +76,27 @@ void Topology::setSupernodes(const std::map< Identity,std::vector< std::pair<Ine
 	_amSupernode = (_supernodes.find(_r->identity) != _supernodes.end());
 }
 
+void Topology::setSupernodes(const Dictionary &sn)
+{
+	std::map< Identity,std::vector< std::pair<InetAddress,bool> > > m;
+	for(Dictionary::const_iterator d(sn.begin());d!=sn.end();++d) {
+		if ((d->first.length() == ZT_ADDRESS_LENGTH_HEX)&&(d->second.length() > 0)) {
+			try {
+				Dictionary snspec(d->second);
+				std::vector< std::pair<InetAddress,bool> > &a = m[Identity(snspec.get("id"))];
+				std::string udp(snspec.get("udp",std::string()));
+				if (udp.length() > 0)
+					a.push_back(std::pair<InetAddress,bool>(InetAddress(udp),false));
+				std::string tcp(snspec.get("tcp",std::string()));
+					a.push_back(std::pair<InetAddress,bool>(InetAddress(tcp),true));
+			} catch ( ... ) {
+				LOG("supernode list contained invalid entry for: %s",d->first.c_str());
+			}
+		}
+	}
+	this->setSupernodes(m);
+}
+
 SharedPtr<Peer> Topology::addPeer(const SharedPtr<Peer> &peer)
 {
 	if (peer->address() == _r->identity.address()) {
diff --git a/node/Topology.hpp b/node/Topology.hpp
index 0585ad1fa..375112084 100644
--- a/node/Topology.hpp
+++ b/node/Topology.hpp
@@ -48,6 +48,7 @@
 namespace ZeroTier {
 
 class RuntimeEnvironment;
+class Dictionary;
 
 /**
  * Database of network topology
@@ -65,6 +66,16 @@ public:
 	 */
 	void setSupernodes(const std::map< Identity,std::vector< std::pair<InetAddress,bool> > > &sn);
 
+	/**
+	 * Set up supernodes for this network
+	 *
+	 * This performs no signature verification of any kind. The caller must
+	 * check the signature of the root topology dictionary first.
+	 *
+	 * @param sn Supernodes dictionary from root-topology
+	 */
+	void setSupernodes(const Dictionary &sn);
+
 	/**
 	 * Add a peer to database
 	 *
diff --git a/root-topology/supernodes/9d219039f3 b/root-topology/supernodes/9d219039f3
index 5b21cf629..1602f35e4 100644
--- a/root-topology/supernodes/9d219039f3
+++ b/root-topology/supernodes/9d219039f3
@@ -2,4 +2,4 @@ id=9d219039f3:0:01f0922a98e3b34ebcbff333269dc265d7a020aab69d72be4d4acc9c8c929478
 udp=128.199.197.217/9993
 tcp=128.199.197.217/443
 desc=Singapore
-hn=mi-go.zerotier.com
+dns=mi-go.zerotier.com