New RPC command disconnectnode

src/rpcnet.cpp

@@ -214,6 +214,28 @@ UniValue addnode(const UniValue& params, bool fHelp)
     return NullUniValue;
 }
 
+UniValue disconnectnode(const UniValue& params, bool fHelp)
+{
+    if (fHelp || params.size() != 1)
+        throw runtime_error(
+            "disconnectnode \"node\" \n"
+            "\nImmediately disconnects from the specified node.\n"
+            "\nArguments:\n"
+            "1. \"node\"     (string, required) The node (see getpeerinfo for nodes)\n"
+            "\nExamples:\n"
+            + HelpExampleCli("disconnectnode", "\"192.168.0.6:8333\"")
+            + HelpExampleRpc("disconnectnode", "\"192.168.0.6:8333\"")
+        );
+
+    CNode* pNode = FindNode(params[0].get_str());
+    if (pNode == NULL)
+        throw JSONRPCError(RPC_CLIENT_NODE_NOT_CONNECTED, "Node not found in connected nodes");
+
+    pNode->CloseSocketDisconnect();
+
+    return NullUniValue;
+}
+
 UniValue getaddednodeinfo(const UniValue& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)

src/rpcprotocol.h

@@ -64,6 +64,7 @@ enum RPCErrorCode
     RPC_CLIENT_IN_INITIAL_DOWNLOAD  = -10, //! Still downloading initial blocks
     RPC_CLIENT_NODE_ALREADY_ADDED   = -23, //! Node is already added
     RPC_CLIENT_NODE_NOT_ADDED       = -24, //! Node has not been added before
+    RPC_CLIENT_NODE_NOT_CONNECTED   = -29, //! Node to disconnect not found in connected nodes
 
     //! Wallet errors
     RPC_WALLET_ERROR                = -4,  //! Unspecified problem with wallet (key not found etc.)

src/rpcserver.cpp

@@ -280,6 +280,7 @@ static const CRPCCommand vRPCCommands[] =
     /* P2P networking */
     { "network",            "getnetworkinfo",         &getnetworkinfo,         true  },
     { "network",            "addnode",                &addnode,                true  },
+    { "network",            "disconnectnode",         &disconnectnode,         true  },
     { "network",            "getaddednodeinfo",       &getaddednodeinfo,       true  },
     { "network",            "getconnectioncount",     &getconnectioncount,     true  },
     { "network",            "getnettotals",           &getnettotals,           true  },

src/rpcserver.h

@@ -158,6 +158,7 @@ extern UniValue getconnectioncount(const UniValue& params, bool fHelp); // in rp
 extern UniValue getpeerinfo(const UniValue& params, bool fHelp);
 extern UniValue ping(const UniValue& params, bool fHelp);
 extern UniValue addnode(const UniValue& params, bool fHelp);
+extern UniValue disconnectnode(const UniValue& params, bool fHelp);
 extern UniValue getaddednodeinfo(const UniValue& params, bool fHelp);
 extern UniValue getnettotals(const UniValue& params, bool fHelp);