Adding initial support for broadcasting transactions over Tor

  - Support for ".onion" in --add-exclusive-node and --add-peer
  - Add --anonymizing-proxy for outbound Tor connections
  - Add --anonymous-inbounds for inbound Tor connections
  - Support for sharing ".onion" addresses over Tor connections
  - Support for broadcasting transactions received over RPC exclusively
    over Tor (else broadcast over public IP when Tor not enabled).

1 files changed, 69 insertions, 11 deletions

diff --git a/src/p2p/net_peerlist_boost_serialization.h b/src/p2p/net_peerlist_boost_serialization.h
index 2f4a7e661..d2e9efa3d 100644
--- a/src/p2p/net_peerlist_boost_serialization.h
+++ b/src/p2p/net_peerlist_boost_serialization.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2018, The Monero Project
+	// Copyright (c) 2014-2018, The Monero Project
 // 
 // All rights reserved.
 // 
@@ -30,7 +30,11 @@
 
 #pragma once
 
+#include <cstring>
+
+#include "common/expect.h"
 #include "net/net_utils_base.h"
+#include "net/tor_address.h"
 #include "p2p/p2p_protocol_defs.h"
 
 #ifdef CRYPTONOTE_PRUNING_DEBUG_SPOOF_SEED
@@ -42,24 +46,37 @@ namespace boost
   namespace serialization
   {
     template <class T, class Archive>
-    inline void do_serialize(Archive &a, epee::net_utils::network_address& na, T local)
+    inline void do_serialize(boost::mpl::false_, Archive &a, epee::net_utils::network_address& na)
     {
-      if (typename Archive::is_saving()) local = na.as<T>();
-      a & local;
-      if (!typename Archive::is_saving()) na = local;
+      T addr{};
+      a & addr;
+      na = std::move(addr);
     }
+
+    template <class T, class Archive>
+    inline void do_serialize(boost::mpl::true_, Archive &a, const epee::net_utils::network_address& na)
+    {
+      a & na.as<T>();
+    }
+
     template <class Archive, class ver_type>
     inline void serialize(Archive &a, epee::net_utils::network_address& na, const ver_type ver)
     {
+      static constexpr const typename Archive::is_saving is_saving{};
+
       uint8_t type;
-      if (typename Archive::is_saving())
-        type = na.get_type_id();
+      if (is_saving)
+        type = uint8_t(na.get_type_id());
       a & type;
-      switch (type)
+      switch (epee::net_utils::address_type(type))
       {
-        case epee::net_utils::ipv4_network_address::ID:
-	  do_serialize(a, na, epee::net_utils::ipv4_network_address{0, 0});
-	  break; 
+        case epee::net_utils::ipv4_network_address::get_type_id():
+          do_serialize<epee::net_utils::ipv4_network_address>(is_saving, a, na);
+          break;
+        case net::tor_address::get_type_id():
+          do_serialize<net::tor_address>(is_saving, a, na);
+          break;
+        case epee::net_utils::address_type::invalid:
         default:
           throw std::runtime_error("Unsupported network address type");
       }
@@ -76,6 +93,47 @@ namespace boost
     }
 
     template <class Archive, class ver_type>
+    inline void save(Archive& a, const net::tor_address& na, const ver_type)
+    {
+      const size_t length = std::strlen(na.host_str());
+      if (length > 255)
+        MONERO_THROW(net::error::invalid_tor_address, "Tor address too long");
+
+      const uint16_t port{na.port()};
+      const uint8_t len = length;
+      a & port;
+      a & len;
+      a.save_binary(na.host_str(), length);
+    }
+
+    template <class Archive, class ver_type>
+    inline void load(Archive& a, net::tor_address& na, const ver_type)
+    {
+      uint16_t port = 0;
+      uint8_t length = 0;
+      a & port;
+      a & length;
+
+      if (length > net::tor_address::buffer_size())
+        MONERO_THROW(net::error::invalid_tor_address, "Tor address too long");
+
+      char host[net::tor_address::buffer_size()] = {0};
+      a.load_binary(host, length);
+      host[sizeof(host) - 1] = 0;
+
+      if (std::strcmp(host, net::tor_address::unknown_str()) == 0)
+        na = net::tor_address::unknown();
+      else
+        na = MONERO_UNWRAP(net::tor_address::make(host, port));
+    }
+
+    template <class Archive, class ver_type>
+    inline void serialize(Archive &a, net::tor_address& na, const ver_type ver)
+    {
+      boost::serialization::split_free(a, na, ver);
+    }
+
+    template <class Archive, class ver_type>
     inline void serialize(Archive &a,  nodetool::peerlist_entry& pl, const ver_type ver)
     {
       a & pl.adr;