X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fcheckpoints.h;h=a2b9731e0a62d8a0e2eb73c3fbc6456ed2a2ef50;hb=HEAD;hp=db3fe196db23c68b704e73791bec496d909a4d9b;hpb=dffda08fddf00889dd710ab704e9e99929be325a;p=novacoin.git

diff --git a/src/checkpoints.h b/src/checkpoints.h
index db3fe19..d5c0b06 100644
--- a/src/checkpoints.h
+++ b/src/checkpoints.h
@@ -1,20 +1,77 @@
-// Copyright (c) 2011 The Bitcoin developers
-// Copyright (c) 2011-2012 The PPCoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_CHECKPOINT_H
 #define  BITCOIN_CHECKPOINT_H
 
-#include <map>
 #include "util.h"
+#include "serialize.h"
+#include "sync.h"
+#include "uint256.h"
+
+#include <map>
 
-// ppcoin: auto checkpoint min at 8 hours; max at 16 hours
-#define AUTO_CHECKPOINT_MIN_SPAN   (60 * 60 * 8)
-#define AUTO_CHECKPOINT_MAX_SPAN   (60 * 60 * 16)
-#define AUTO_CHECKPOINT_TRUST_SPAN (60 * 60 * 24)
+// max 1 hour before latest block
+static const int64_t CHECKPOINT_MAX_SPAN = nOneHour;
+
+#ifdef WIN32
+#undef STRICT
+#undef PERMISSIVE
+#undef ADVISORY
+#endif
 
-class uint256;
 class CBlockIndex;
+class CSyncCheckpoint;
+class CNode;
+
+/** Block-chain checkpoints are compiled-in sanity checks.
+ * They are updated every release or three.
+ */
+namespace Checkpoints
+{
+    /** Checkpointing mode */
+    enum CPMode
+    {
+        // Scrict checkpoints policy, perform conflicts verification and resolve conflicts
+        STRICT = 0,
+        // Advisory checkpoints policy, perform conflicts verification but don't try to resolve them
+        ADVISORY = 1,
+        // Permissive checkpoints policy, don't perform any checking
+        PERMISSIVE = 2
+    };
+
+    // Returns true if block passes checkpoint checks
+    bool CheckHardened(int nHeight, const uint256& hash);
+
+    // Returns true if block passes banlist checks
+    bool CheckBanned(const uint256 &nHash);
+
+    // Return conservative estimate of total number of blocks, 0 if unknown
+    int GetTotalBlocksEstimate();
+
+    // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
+    CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);
+
+    // Returns last checkpoint timestamp
+    unsigned int GetLastCheckpointTime();
+
+    extern uint256 hashSyncCheckpoint;
+    extern CSyncCheckpoint checkpointMessage;
+    extern uint256 hashInvalidCheckpoint;
+    extern CCriticalSection cs_hashSyncCheckpoint;
+
+    CBlockIndex* GetLastSyncCheckpoint();
+    bool WriteSyncCheckpoint(const uint256& hashCheckpoint);
+    bool AcceptPendingSyncCheckpoint();
+    uint256 AutoSelectSyncCheckpoint();
+    bool CheckSync(const uint256& hashBlock, const CBlockIndex* pindexPrev);
+    bool WantedByPendingSyncCheckpoint(uint256 hashBlock);
+    bool ResetSyncCheckpoint();
+    void AskForPendingSyncCheckpoint(CNode* pfrom);
+    bool SetCheckpointPrivKey(std::string strPrivKey);
+    bool SendSyncCheckpoint(uint256 hashCheckpoint);
+    bool IsMatureSyncCheckpoint();
+}
 
 // ppcoin: synchronized checkpoint
 class CUnsignedSyncCheckpoint
@@ -46,23 +103,18 @@ public:
             nVersion,
             hashCheckpoint.ToString().c_str());
     }
-
-    void print() const
-    {
-        printf("%s", ToString().c_str());
-    }
 };
 
 class CSyncCheckpoint : public CUnsignedSyncCheckpoint
 {
 public:
+    static const std::string strMasterPubKey;
+    static std::string strMasterPrivKey;
+
     std::vector<unsigned char> vchMsg;
     std::vector<unsigned char> vchSig;
 
-    CSyncCheckpoint()
-    {
-        SetNull();
-    }
+    CSyncCheckpoint();
 
     IMPLEMENT_SERIALIZE
     (
@@ -70,84 +122,12 @@ public:
         READWRITE(vchSig);
     )
 
-    void SetNull()
-    {
-        CUnsignedSyncCheckpoint::SetNull();
-        vchMsg.clear();
-        vchSig.clear();
-    }
-
-    bool IsNull() const
-    {
-        return (hashCheckpoint == 0);
-    }
-
-    uint256 GetHash() const
-    {
-        return SerializeHash(*this);
-    }
-
-    bool RelayTo(CNode* pnode) const
-    {
-        // returns true if wasn't already sent
-        if (pnode->hashCheckpointKnown != hashCheckpoint)
-        {
-            pnode->hashCheckpointKnown = hashCheckpoint;
-            pnode->PushMessage("checkpoint", *this);
-            return true;
-        }
-        return false;
-    }
-
-    bool CheckSignature()
-    {
-        CKey key;
-        if (!key.SetPubKey(ParseHex("04ea21daea8c15559870b5e93750ddc2f0c16bd0cb16636ba88c0746cfac07912ec7ad14111cc4aedda12c2687c920c7b7b62fd67ca14eed53f2d1704ec72362ce")))
-            return error("CSyncCheckpoint::CheckSignature() : SetPubKey failed");
-        if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
-            return error("CSyncCheckpoint::CheckSignature() : verify signature failed");
-
-        // Now unserialize the data
-        CDataStream sMsg(vchMsg);
-        sMsg >> *(CUnsignedSyncCheckpoint*)this;
-        return true;
-    }
-
+    void SetNull();
+    bool IsNull() const;
+    uint256 GetHash() const;
+    bool RelayTo(CNode* pnode) const;
+    bool CheckSignature();
     bool ProcessSyncCheckpoint(CNode* pfrom);
 };
 
-//
-// Block-chain checkpoints are compiled-in sanity checks.
-// They are updated every release or three.
-//
-namespace Checkpoints
-{
-    // Returns true if block passes checkpoint checks
-    bool CheckHardened(int nHeight, const uint256& hash);
-
-    // Return conservative estimate of total number of blocks, 0 if unknown
-    int GetTotalBlocksEstimate();
-
-    // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
-    CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);
-
-    extern uint256 hashSyncCheckpoint;
-    extern CSyncCheckpoint checkpointMessage;
-    extern CCriticalSection cs_hashSyncCheckpoint;
-
-    bool AcceptPendingSyncCheckpoint();
-    uint256 AutoSelectSyncCheckpoint();
-    bool CheckSync(int nHeight, const uint256& hashBlock);
-
-    // ppcoin: automatic checkpoint
-    extern int nAutoCheckpoint;
-    extern int nBranchPoint;
-
-    bool CheckAuto(const CBlockIndex *pindex);
-    int  GetNextChainCheckpoint(const CBlockIndex *pindex);
-    int  GetNextAutoCheckpoint(int nCheckpoint);
-    void AdvanceAutoCheckpoint(int nCheckpoint);
-    bool ResetAutoCheckpoint(int nCheckpoint);
-}
-
 #endif