From 433fb1a95d7a96a033d7454e198d274e92108865 Mon Sep 17 00:00:00 2001
From: Jonas Schnelli <jonas.schnelli@include7.ch>
Date: Mon, 25 May 2015 20:03:51 +0200
Subject: [RPC] extend setban to allow subnets

---
 src/net.cpp | 50 +++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 43 insertions(+), 7 deletions(-)

(limited to 'src/net.cpp')

diff --git a/src/net.cpp b/src/net.cpp
index a065bb29bb..3ba2379ea0 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -332,6 +332,15 @@ CNode* FindNode(const CNetAddr& ip)
     return NULL;
 }
 
+CNode* FindNode(const CSubNet& subNet)
+{
+    LOCK(cs_vNodes);
+    BOOST_FOREACH(CNode* pnode, vNodes)
+    if (subNet.Match((CNetAddr)pnode->addr))
+        return (pnode);
+    return NULL;
+}
+
 CNode* FindNode(const std::string& addrName)
 {
     LOCK(cs_vNodes);
@@ -434,7 +443,7 @@ void CNode::PushVersion()
 
 
 
-std::map<CNetAddr, int64_t> CNode::setBanned;
+std::map<CSubNet, int64_t> CNode::setBanned;
 CCriticalSection CNode::cs_setBanned;
 
 void CNode::ClearBanned()
@@ -447,7 +456,24 @@ bool CNode::IsBanned(CNetAddr ip)
     bool fResult = false;
     {
         LOCK(cs_setBanned);
-        std::map<CNetAddr, int64_t>::iterator i = setBanned.find(ip);
+        for (std::map<CSubNet, int64_t>::iterator it = setBanned.begin(); it != setBanned.end(); it++)
+        {
+            CSubNet subNet = (*it).first;
+            int64_t t = (*it).second;
+
+            if(subNet.Match(ip) && GetTime() < t)
+                fResult = true;
+        }
+    }
+    return fResult;
+}
+
+bool CNode::IsBanned(CSubNet subnet)
+{
+    bool fResult = false;
+    {
+        LOCK(cs_setBanned);
+        std::map<CSubNet, int64_t>::iterator i = setBanned.find(subnet);
         if (i != setBanned.end())
         {
             int64_t t = (*i).second;
@@ -458,24 +484,34 @@ bool CNode::IsBanned(CNetAddr ip)
     return fResult;
 }
 
-void CNode::Ban(const CNetAddr &addr, int64_t bantimeoffset) {
+void CNode::Ban(const CNetAddr& addr, int64_t bantimeoffset) {
+    CSubNet subNet(addr.ToString()+(addr.IsIPv4() ? "/32" : "/128"));
+    Ban(subNet, bantimeoffset);
+}
+
+void CNode::Ban(const CSubNet& subNet, int64_t bantimeoffset) {
     int64_t banTime = GetTime()+GetArg("-bantime", 60*60*24);  // Default 24-hour ban
     if (bantimeoffset > 0)
         banTime = GetTime()+bantimeoffset;
 
     LOCK(cs_setBanned);
-    if (setBanned[addr] < banTime)
-        setBanned[addr] = banTime;
+    if (setBanned[subNet] < banTime)
+        setBanned[subNet] = banTime;
 }
 
 bool CNode::Unban(const CNetAddr &addr) {
+    CSubNet subNet(addr.ToString()+(addr.IsIPv4() ? "/32" : "/128"));
+    return Unban(subNet);
+}
+
+bool CNode::Unban(const CSubNet &subNet) {
     LOCK(cs_setBanned);
-    if (setBanned.erase(addr))
+    if (setBanned.erase(subNet))
         return true;
     return false;
 }
 
-void CNode::GetBanned(std::map<CNetAddr, int64_t> &banMap)
+void CNode::GetBanned(std::map<CSubNet, int64_t> &banMap)
 {
     LOCK(cs_setBanned);
     banMap = setBanned; //create a thread safe copy
-- 
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