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-rw-r--r--src/consensus/validation.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/src/consensus/validation.h b/src/consensus/validation.h
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+++ b/src/consensus/validation.h
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+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_CONSENSUS_VALIDATION_H
+#define BITCOIN_CONSENSUS_VALIDATION_H
+
+#include <string>
+
+/** "reject" message codes */
+static const unsigned char REJECT_MALFORMED = 0x01;
+static const unsigned char REJECT_INVALID = 0x10;
+static const unsigned char REJECT_OBSOLETE = 0x11;
+static const unsigned char REJECT_DUPLICATE = 0x12;
+static const unsigned char REJECT_NONSTANDARD = 0x40;
+static const unsigned char REJECT_DUST = 0x41;
+static const unsigned char REJECT_INSUFFICIENTFEE = 0x42;
+static const unsigned char REJECT_CHECKPOINT = 0x43;
+
+/** Capture information about block/transaction validation */
+class CValidationState {
+private:
+ enum mode_state {
+ MODE_VALID, //! everything ok
+ MODE_INVALID, //! network rule violation (DoS value may be set)
+ MODE_ERROR, //! run-time error
+ } mode;
+ int nDoS;
+ std::string strRejectReason;
+ unsigned char chRejectCode;
+ bool corruptionPossible;
+public:
+ CValidationState() : mode(MODE_VALID), nDoS(0), chRejectCode(0), corruptionPossible(false) {}
+ bool DoS(int level, bool ret = false,
+ unsigned char chRejectCodeIn=0, std::string strRejectReasonIn="",
+ bool corruptionIn=false) {
+ chRejectCode = chRejectCodeIn;
+ strRejectReason = strRejectReasonIn;
+ corruptionPossible = corruptionIn;
+ if (mode == MODE_ERROR)
+ return ret;
+ nDoS += level;
+ mode = MODE_INVALID;
+ return ret;
+ }
+ bool Invalid(bool ret = false,
+ unsigned char _chRejectCode=0, std::string _strRejectReason="") {
+ return DoS(0, ret, _chRejectCode, _strRejectReason);
+ }
+ bool Error(const std::string& strRejectReasonIn) {
+ if (mode == MODE_VALID)
+ strRejectReason = strRejectReasonIn;
+ mode = MODE_ERROR;
+ return false;
+ }
+ bool IsValid() const {
+ return mode == MODE_VALID;
+ }
+ bool IsInvalid() const {
+ return mode == MODE_INVALID;
+ }
+ bool IsError() const {
+ return mode == MODE_ERROR;
+ }
+ bool IsInvalid(int &nDoSOut) const {
+ if (IsInvalid()) {
+ nDoSOut = nDoS;
+ return true;
+ }
+ return false;
+ }
+ bool CorruptionPossible() const {
+ return corruptionPossible;
+ }
+ unsigned char GetRejectCode() const { return chRejectCode; }
+ std::string GetRejectReason() const { return strRejectReason; }
+};
+
+#endif // BITCOIN_CONSENSUS_VALIDATION_H