Merge pull request #4605

aa82795 Add detailed network info to getnetworkinfo RPC (Wladimir J. van der Laan)
075cf49 Add GetNetworkName function (Wladimir J. van der Laan)
c91a947 Add IsReachable(net) function (Wladimir J. van der Laan)
60dc8e4 Allow -onlynet=onion to be used (Wladimir J. van der Laan)

src/init.cpp

@@ -247,7 +247,7 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += "  -maxreceivebuffer=<n>  " + _("Maximum per-connection receive buffer, <n>*1000 bytes (default: 5000)") + "\n";
     strUsage += "  -maxsendbuffer=<n>     " + _("Maximum per-connection send buffer, <n>*1000 bytes (default: 1000)") + "\n";
     strUsage += "  -onion=<ip:port>       " + _("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: -proxy)") + "\n";
-    strUsage += "  -onlynet=<net>         " + _("Only connect to nodes in network <net> (IPv4, IPv6 or Tor)") + "\n";
+    strUsage += "  -onlynet=<net>         " + _("Only connect to nodes in network <net> (ipv4, ipv6 or onion)") + "\n";
     strUsage += "  -permitbaremultisig    " + _("Relay non-P2SH multisig (default: 1)") + "\n";
     strUsage += "  -port=<port>           " + _("Listen for connections on <port> (default: 8333 or testnet: 18333)") + "\n";
     strUsage += "  -proxy=<ip:port>       " + _("Connect through SOCKS5 proxy") + "\n";

src/net.cpp

@@ -307,12 +307,18 @@ bool IsLocal(const CService& addr)
     return mapLocalHost.count(addr) > 0;
 }
 
+/** check whether a given network is one we can probably connect to */
+bool IsReachable(enum Network net)
+{
+    LOCK(cs_mapLocalHost);
+    return vfReachable[net] && !vfLimited[net];
+}
+
 /** check whether a given address is in a network we can probably connect to */
 bool IsReachable(const CNetAddr& addr)
 {
-    LOCK(cs_mapLocalHost);
     enum Network net = addr.GetNetwork();
-    return vfReachable[net] && !vfLimited[net];
+    return IsReachable(net);
 }
 
 bool GetMyExternalIP2(const CService& addrConnect, const char* pszGet, const char* pszKeyword, CNetAddr& ipRet)

src/net.h

@@ -106,6 +106,7 @@ bool AddLocal(const CNetAddr& addr, int nScore = LOCAL_NONE);
 bool SeenLocal(const CService& addr);
 bool IsLocal(const CService& addr);
 bool GetLocal(CService &addr, const CNetAddr *paddrPeer = NULL);
+bool IsReachable(enum Network net);
 bool IsReachable(const CNetAddr &addr);
 void SetReachable(enum Network net, bool fFlag = true);
 CAddress GetLocalAddress(const CNetAddr *paddrPeer = NULL);

src/netbase.cpp

@@ -47,10 +47,20 @@ enum Network ParseNetwork(std::string net) {
     boost::to_lower(net);
     if (net == "ipv4") return NET_IPV4;
     if (net == "ipv6") return NET_IPV6;
-    if (net == "tor")  return NET_TOR;
+    if (net == "tor" || net == "onion")  return NET_TOR;
     return NET_UNROUTABLE;
 }
 
+std::string GetNetworkName(enum Network net) {
+    switch(net)
+    {
+    case NET_IPV4: return "ipv4";
+    case NET_IPV6: return "ipv6";
+    case NET_TOR: return "onion";
+    default: return "";
+    }
+}
+
 void SplitHostPort(std::string in, int &portOut, std::string &hostOut) {
     size_t colon = in.find_last_of(':');
     // if a : is found, and it either follows a [...], or no other : is in the string, treat it as port separator

src/netbase.h

@@ -26,7 +26,7 @@ extern bool fNameLookup;
 
 enum Network
 {
-    NET_UNROUTABLE,
+    NET_UNROUTABLE = 0,
     NET_IPV4,
     NET_IPV6,
     NET_TOR,
@@ -164,6 +164,7 @@ class CService : public CNetAddr
 typedef CService proxyType;
 
 enum Network ParseNetwork(std::string net);
+std::string GetNetworkName(enum Network net);
 void SplitHostPort(std::string in, int &portOut, std::string &hostOut);
 bool SetProxy(enum Network net, CService addrProxy);
 bool GetProxy(enum Network net, proxyType &proxyInfoOut);

src/rpcnet.cpp

@@ -338,6 +338,26 @@ Value getnettotals(const Array& params, bool fHelp)
     return obj;
 }
 
+static Array GetNetworksInfo()
+{
+    Array networks;
+    for(int n=0; n<NET_MAX; ++n)
+    {
+        enum Network network = static_cast<enum Network>(n);
+        if(network == NET_UNROUTABLE)
+            continue;
+        proxyType proxy;
+        Object obj;
+        GetProxy(network, proxy);
+        obj.push_back(Pair("name", GetNetworkName(network)));
+        obj.push_back(Pair("limited", IsLimited(network)));
+        obj.push_back(Pair("reachable", IsReachable(network)));
+        obj.push_back(Pair("proxy", proxy.IsValid() ? proxy.ToStringIPPort() : string()));
+        networks.push_back(obj);
+    }
+    return networks;
+}
+
 Value getnetworkinfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
@@ -351,7 +371,13 @@ Value getnetworkinfo(const Array& params, bool fHelp)
             "  \"localservices\": \"xxxxxxxxxxxxxxxx\",   (string) the services we offer to the network\n"
             "  \"timeoffset\": xxxxx,        (numeric) the time offset\n"
             "  \"connections\": xxxxx,       (numeric) the number of connections\n"
-            "  \"proxy\": \"host:port\",     (string, optional) the proxy used by the server\n"
+            "  \"networks\": [               (array) information per network\n"
+            "      \"name\": \"xxx\",        (string) network (ipv4, ipv6 or onion)\n"
+            "      \"limited\": xxx,         (boolean) is the network limited using -onlynet?\n"
+            "      \"reachable\": xxx,       (boolean) is the network reachable?\n"
+            "      \"proxy\": \"host:port\"  (string) the proxy that is used for this network, or empty if none\n"
+            "    },\n"
+            "  ],\n"
             "  \"relayfee\": x.xxxx,         (numeric) minimum relay fee for non-free transactions in btc/kb\n"
             "  \"localaddresses\": [,        (array) list of local addresses\n"
             "    \"address\": \"xxxx\",      (string) network address\n"
@@ -364,16 +390,13 @@ Value getnetworkinfo(const Array& params, bool fHelp)
             + HelpExampleRpc("getnetworkinfo", "")
         );
 
-    proxyType proxy;
-    GetProxy(NET_IPV4, proxy);
-
     Object obj;
     obj.push_back(Pair("version",       (int)CLIENT_VERSION));
     obj.push_back(Pair("protocolversion",(int)PROTOCOL_VERSION));
     obj.push_back(Pair("localservices",       strprintf("%016x", nLocalServices)));
     obj.push_back(Pair("timeoffset",    GetTimeOffset()));
     obj.push_back(Pair("connections",   (int)vNodes.size()));
-    obj.push_back(Pair("proxy",         (proxy.IsValid() ? proxy.ToStringIPPort() : string())));
+    obj.push_back(Pair("networks",      GetNetworksInfo()));
     obj.push_back(Pair("relayfee",      ValueFromAmount(::minRelayTxFee.GetFeePerK())));
     Array localAddresses;
     {