Add IPv6 support

new cli options (RPC ones also apply to wallet):
  --p2p-bind-ipv6-address (default = "::")
  --p2p-bind-port-ipv6    (default same as ipv4 port for given nettype)
  --rpc-bind-ipv6-address (default = "::1")

  --p2p-use-ipv6          (default false)
  --rpc-use-ipv6          (default false)

  --p2p-require-ipv4      (default true, if ipv4 bind fails and this is
                           true, will not continue even if ipv6 bind
                           successful)
  --rpc-require-ipv4      (default true, description as above)

ipv6 addresses are to be specified as "[xx:xx:xx::xx:xx]:port" except
in the cases of the cli args for bind address.  For those the square
braces can be omitted.

1 files changed, 19 insertions, 2 deletions

diff --git a/src/p2p/net_node.cpp b/src/p2p/net_node.cpp
index a44297c17..bb51be242 100644
--- a/src/p2p/net_node.cpp
+++ b/src/p2p/net_node.cpp
@@ -108,10 +108,11 @@ namespace
 
 namespace nodetool
 {
-    const command_line::arg_descriptor<std::string> arg_p2p_bind_ip        = {"p2p-bind-ip", "Interface for p2p network protocol", "0.0.0.0"};
+    const command_line::arg_descriptor<std::string> arg_p2p_bind_ip        = {"p2p-bind-ip", "Interface for p2p network protocol (IPv4)", "0.0.0.0"};
+    const command_line::arg_descriptor<std::string> arg_p2p_bind_ipv6_address        = {"p2p-bind-ipv6-address", "Interface for p2p network protocol (IPv6)", "::"};
     const command_line::arg_descriptor<std::string, false, true, 2> arg_p2p_bind_port = {
         "p2p-bind-port"
-      , "Port for p2p network protocol"
+      , "Port for p2p network protocol (IPv4)"
       , std::to_string(config::P2P_DEFAULT_PORT)
       , {{ &cryptonote::arg_testnet_on, &cryptonote::arg_stagenet_on }}
       , [](std::array<bool, 2> testnet_stagenet, bool defaulted, std::string val)->std::string {
@@ -122,6 +123,20 @@ namespace nodetool
           return val;
         }
       };
+    const command_line::arg_descriptor<std::string, false, true, 2> arg_p2p_bind_port_ipv6 = {
+        "p2p-bind-port-ipv6"
+      , "Port for p2p network protocol (IPv6)"
+      , std::to_string(config::P2P_DEFAULT_PORT)
+      , {{ &cryptonote::arg_testnet_on, &cryptonote::arg_stagenet_on }}
+      , [](std::array<bool, 2> testnet_stagenet, bool defaulted, std::string val)->std::string {
+          if (testnet_stagenet[0] && defaulted)
+            return std::to_string(config::testnet::P2P_DEFAULT_PORT);
+          else if (testnet_stagenet[1] && defaulted)
+            return std::to_string(config::stagenet::P2P_DEFAULT_PORT);
+          return val;
+        }
+      };
+
     const command_line::arg_descriptor<uint32_t>    arg_p2p_external_port  = {"p2p-external-port", "External port for p2p network protocol (if port forwarding used with NAT)", 0};
     const command_line::arg_descriptor<bool>        arg_p2p_allow_local_ip = {"allow-local-ip", "Allow local ip add to peer list, mostly in debug purposes"};
     const command_line::arg_descriptor<std::vector<std::string> > arg_p2p_add_peer   = {"add-peer", "Manually add peer to local peerlist"};
@@ -136,6 +151,8 @@ namespace nodetool
 
     const command_line::arg_descriptor<bool>        arg_no_igd  = {"no-igd", "Disable UPnP port mapping"};
     const command_line::arg_descriptor<std::string> arg_igd = {"igd", "UPnP port mapping (disabled, enabled, delayed)", "delayed"};
+    const command_line::arg_descriptor<bool>        arg_p2p_use_ipv6  = {"p2p-use-ipv6", "Enable IPv6 for p2p", false};
+    const command_line::arg_descriptor<bool>        arg_p2p_require_ipv4  = {"p2p-require-ipv4", "Require successful IPv4 bind for p2p", true};
     const command_line::arg_descriptor<int64_t>     arg_out_peers = {"out-peers", "set max number of out peers", -1};
     const command_line::arg_descriptor<int64_t>     arg_in_peers = {"in-peers", "set max number of in peers", -1};
     const command_line::arg_descriptor<int> arg_tos_flag = {"tos-flag", "set TOS flag", -1};