From a92652f4ad4722fb249bf24c45d70a9a0b391694 Mon Sep 17 00:00:00 2001
From: Jeff Becker <ampernand@gmail.com>
Date: Thu, 24 Nov 2016 10:11:46 -0500
Subject: [PATCH] add ifname4 and ifname6 options

---
 Config.cpp        |  6 ++++--
 RouterContext.cpp | 16 ++++++++++++++++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/Config.cpp b/Config.cpp
index d8dd6a27..6f4014ba 100644
--- a/Config.cpp
+++ b/Config.cpp
@@ -41,6 +41,8 @@ namespace config {
 	  ("datadir",   value<std::string>()->default_value(""),     "Path to storage of i2pd data (RI, keys, peer profiles, ...)")
       ("host",      value<std::string>()->default_value("0.0.0.0"),     "External IP")
       ("ifname",    value<std::string>()->default_value(""), "Network interface to bind to")
+			("ifname4",   value<std::string>()->default_value(""), "Network interface to bind to for ipv4")
+			("ifname6",   value<std::string>()->default_value(""), "Network interface to bind to for ipv6")
       ("nat",       value<bool>()->zero_tokens()->default_value(true), "Should we assume we are behind NAT?")
       ("port",      value<uint16_t>()->default_value(0),                "Port to listen for incoming connections (default: auto)")
       ("ipv4",      value<bool>()->zero_tokens()->default_value(true),  "Enable communication through ipv4")
@@ -59,7 +61,7 @@ namespace config {
       ("close", value<std::string>()->default_value("ask"), "Action on close: minimize, exit, ask") // TODO: add custom validator or something
 #endif
       ;
-
+		
     options_description limits("Limits options");
     limits.add_options()
       ("limits.coresize",         value<uint32_t>()->default_value(0),    "Maximum size of corefile in Kb (0 - use system limit)")
@@ -192,7 +194,7 @@ namespace config {
       ("trust.family", value<std::string>()->default_value(""), "Router Familiy to trust for first hops")
 			("trust.routers", value<std::string>()->default_value(""), "Only Connect to these routers")
       ("trust.hidden", value<bool>()->default_value(false), "Should we hide our router from other routers?");
-
+		
     options_description websocket("Websocket Options");
     websocket.add_options()
       ("websockets.enabled", value<bool>()->default_value(false), "enable websocket server")
diff --git a/RouterContext.cpp b/RouterContext.cpp
index 7847bef7..c1341a62 100644
--- a/RouterContext.cpp
+++ b/RouterContext.cpp
@@ -74,6 +74,22 @@ namespace i2p
 			routerInfo.AddSSUAddress (host.c_str(), port, routerInfo.GetIdentHash ());
 			routerInfo.AddNTCPAddress (host.c_str(), port);
 		}
+
+		std::string ifname4; i2p::config::GetOption("ifname4", ifname4);
+		if(ifname4.size())
+		{
+			std::string host = i2p::util::net::GetInterfaceAddress(ifname4, false).to_string();
+			routerInfo.AddSSUAddress (host.c_str(), port, routerInfo.GetIdentHash());
+			routerInfo.AddNTCPAddress (host.c_str(), port);
+		}
+		std::string ifname6; i2p::config::GetOption("ifname6", ifname6);
+		if (ifname6.size())
+		{
+			std::string host = i2p::util::net::GetInterfaceAddress(ifname6, true).to_string();
+			routerInfo.AddSSUAddress (host.c_str(), port, routerInfo.GetIdentHash());
+			routerInfo.AddNTCPAddress (host.c_str(), port);	
+		}
+		
 		routerInfo.SetCaps (i2p::data::RouterInfo::eReachable | 
 			i2p::data::RouterInfo::eSSUTesting | i2p::data::RouterInfo::eSSUIntroducer); // LR, BC
         routerInfo.SetProperty ("netId", std::to_string (m_NetID));