RPC: add 'getpeerinfo', returning easy-to-retrieve per-CNode data

src/bitcoinrpc.cpp

@@ -47,6 +47,7 @@ static int64 nWalletUnlockTime;
 static CCriticalSection cs_nWalletUnlockTime;
 
 extern Value getconnectioncount(const Array& params, bool fHelp);
+extern Value getpeerinfo(const Array& params, bool fHelp);
 extern Value dumpprivkey(const Array& params, bool fHelp);
 extern Value importprivkey(const Array& params, bool fHelp);
 
@@ -2300,6 +2301,7 @@ static const CRPCCommand vRPCCommands[] =
     { "stop",                   &stop,                   true },
     { "getblockcount",          &getblockcount,          true },
     { "getconnectioncount",     &getconnectioncount,     true },
+    { "getpeerinfo",            &getpeerinfo,            true },
     { "getdifficulty",          &getdifficulty,          true },
     { "getgenerate",            &getgenerate,            true },
     { "setgenerate",            &setgenerate,            true },

src/net.cpp

@@ -606,7 +606,23 @@ bool CNode::Misbehaving(int howmuch)
     return false;
 }
 
-
+#undef X
+#define X(name) stats.name = name
+void CNode::copyStats(CNodeStats &stats)
+{
+    X(nServices);
+    X(nLastSend);
+    X(nLastRecv);
+    X(nTimeConnected);
+    X(addrName);
+    X(nVersion);
+    X(strSubVer);
+    X(fInbound);
+    X(nReleaseTime);
+    X(nStartingHeight);
+    X(nMisbehavior);
+}
+#undef X
 
 
 

src/net.h

@@ -128,6 +128,24 @@ extern std::map<CInv, int64> mapAlreadyAskedFor;
 
 
 
+class CNodeStats
+{
+public:
+    uint64 nServices;
+    int64 nLastSend;
+    int64 nLastRecv;
+    int64 nTimeConnected;
+    std::string addrName;
+    int nVersion;
+    std::string strSubVer;
+    bool fInbound;
+    int64 nReleaseTime;
+    int nStartingHeight;
+    int nMisbehavior;
+};
+
+
+
 
 
 /** Information about a peer */
@@ -617,6 +635,7 @@ public:
     static void ClearBanned(); // needed for unit testing
     static bool IsBanned(CNetAddr ip);
     bool Misbehaving(int howmuch); // 1 == a little, 100 == a lot
+    void copyStats(CNodeStats &stats);
 };
 
 

src/rpcnet.cpp

@@ -15,7 +15,53 @@ Value getconnectioncount(const Array& params, bool fHelp)
             "getconnectioncount\n"
             "Returns the number of connections to other nodes.");
 
+    LOCK(cs_vNodes);
     return (int)vNodes.size();
 }
 
+static void CopyNodeStats(std::vector<CNodeStats>& vstats)
+{
+    vstats.clear();
+
+    LOCK(cs_vNodes);
+    vstats.reserve(vNodes.size());
+    BOOST_FOREACH(CNode* pnode, vNodes) {
+        CNodeStats stats;
+        pnode->copyStats(stats);
+        vstats.push_back(stats);
+    }
+}
+
+Value getpeerinfo(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() != 0)
+        throw runtime_error(
+            "getpeerinfo\n"
+            "Returns data about each connected network node.");
+
+    vector<CNodeStats> vstats;
+    CopyNodeStats(vstats);
+
+    Array ret;
+
+    BOOST_FOREACH(const CNodeStats& stats, vstats) {
+        Object obj;
+
+        obj.push_back(Pair("addr", stats.addrName));
+        obj.push_back(Pair("services", strprintf("%08"PRI64x, stats.nServices)));
+        obj.push_back(Pair("lastsend", (boost::int64_t)stats.nLastSend));
+        obj.push_back(Pair("lastrecv", (boost::int64_t)stats.nLastRecv));
+        obj.push_back(Pair("conntime", (boost::int64_t)stats.nTimeConnected));
+        obj.push_back(Pair("version", stats.nVersion));
+        obj.push_back(Pair("subver", stats.strSubVer));
+        obj.push_back(Pair("inbound", stats.fInbound));
+        obj.push_back(Pair("releasetime", (boost::int64_t)stats.nReleaseTime));
+        obj.push_back(Pair("height", stats.nStartingHeight));
+        obj.push_back(Pair("banscore", stats.nMisbehavior));
+
+        ret.push_back(obj);
+    }
+    
+    return ret;
+}