From cd339486b70d8d43ea9fd64c764e63c65730f4cb Mon Sep 17 00:00:00 2001
From: Adam Ierymenko <adam.ierymenko@gmail.com>
Date: Mon, 10 Feb 2014 14:22:57 -0800
Subject: [PATCH] local.conf in NodeConfig

---
 node/NodeConfig.cpp | 23 +++++++++++++++++++++++
 node/NodeConfig.hpp | 11 +++++++++--
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/node/NodeConfig.cpp b/node/NodeConfig.cpp
index acdcd49d8..ea2b59466 100644
--- a/node/NodeConfig.cpp
+++ b/node/NodeConfig.cpp
@@ -109,10 +109,13 @@ NodeConfig::NodeConfig(const RuntimeEnvironment *renv,const char *authToken,unsi
 			LOG("unable to create network %.16llx: (unknown exception)",(unsigned long long)*nwid);
 		}
 	}
+
+	_readLocalConfig();
 }
 
 NodeConfig::~NodeConfig()
 {
+	_writeLocalConfig();
 }
 
 void NodeConfig::clean()
@@ -122,6 +125,9 @@ void NodeConfig::clean()
 		n->second->clean();
 }
 
+/////////////////////////////////////////////////////////////////////////////
+// UDP localhost control bus
+
 // Macro used in execute() to push lines onto the return packet
 #undef _P
 #define _P(f,...) { r.push_back(std::string()); Utils::stdsprintf(r.back(),(f),##__VA_ARGS__); }
@@ -389,4 +395,21 @@ void NodeConfig::_CBcontrolPacketHandler(UdpSocket *sock,void *arg,const InetAdd
 	}
 }
 
+/////////////////////////////////////////////////////////////////////////////
+
+void NodeConfig::_readLocalConfig()
+{
+	std::string localDotConf(_r->homePath + ZT_PATH_SEPARATOR_S + "local.conf");
+	std::string buf;
+	if (Utils::readFile(localDotConf.c_str(),buf)) {
+		Mutex::Lock _l(_localConfig_m);
+		_localConfig.fromString(buf.c_str());
+	}
+}
+
+void NodeConfig::_writeLocalConfig()
+{
+	Utils::writeFile(((_r->homePath + ZT_PATH_SEPARATOR_S + "local.conf")).c_str(),_localConfig.toString());
+}
+
 } // namespace ZeroTier
diff --git a/node/NodeConfig.hpp b/node/NodeConfig.hpp
index b26d180be..d7a3984ae 100644
--- a/node/NodeConfig.hpp
+++ b/node/NodeConfig.hpp
@@ -41,6 +41,7 @@
 #include "Utils.hpp"
 #include "UdpSocket.hpp"
 #include "Buffer.hpp"
+#include "Dictionary.hpp"
 
 namespace ZeroTier {
 
@@ -121,7 +122,7 @@ public:
 	}
 
 	/**
-	 * Execute a command
+	 * Execute a control command (called when stuff comes in via control bus)
 	 *
 	 * @param command Command and arguments separated by whitespace (must already be trimmed of CR+LF, etc.)
 	 * @return One or more command results (lines of output)
@@ -159,12 +160,18 @@ public:
 private:
 	static void _CBcontrolPacketHandler(UdpSocket *sock,void *arg,const InetAddress &remoteAddr,const void *data,unsigned int len);
 
+	void _readLocalConfig();
+	void _writeLocalConfig();
+
 	const RuntimeEnvironment *_r;
 
 	unsigned char _controlSocketKey[32];
 	UdpSocket _controlSocket;
 
-	std::map< uint64_t,SharedPtr<Network> > _networks;
+	Dictionary _localConfig; // persisted as local.conf
+	Mutex _localConfig_m;
+
+	std::map< uint64_t,SharedPtr<Network> > _networks; // persisted in networks.d/
 	Mutex _networks_m;
 };