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| 1 | +// Copyright (c) 2009-2010 Satoshi Nakamoto |
| 2 | +// Copyright (c) 2009-2014 The Bitcoin Core developers |
| 3 | +// Distributed under the MIT software license, see the accompanying |
| 4 | +// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
| 5 | + |
| 6 | +#ifndef BITCOIN_CONSENSUS_VALIDATION_H |
| 7 | +#define BITCOIN_CONSENSUS_VALIDATION_H |
| 8 | + |
| 9 | +#include <string> |
| 10 | + |
| 11 | +/** "reject" message codes */ |
| 12 | +static const unsigned char REJECT_MALFORMED = 0x01; |
| 13 | +static const unsigned char REJECT_INVALID = 0x10; |
| 14 | +static const unsigned char REJECT_OBSOLETE = 0x11; |
| 15 | +static const unsigned char REJECT_DUPLICATE = 0x12; |
| 16 | +static const unsigned char REJECT_NONSTANDARD = 0x40; |
| 17 | +static const unsigned char REJECT_DUST = 0x41; |
| 18 | +static const unsigned char REJECT_INSUFFICIENTFEE = 0x42; |
| 19 | +static const unsigned char REJECT_CHECKPOINT = 0x43; |
| 20 | + |
| 21 | +/** Capture information about block/transaction validation */ |
| 22 | +class CValidationState { |
| 23 | +private: |
| 24 | + enum mode_state { |
| 25 | + MODE_VALID, //! everything ok |
| 26 | + MODE_INVALID, //! network rule violation (DoS value may be set) |
| 27 | + MODE_ERROR, //! run-time error |
| 28 | + } mode; |
| 29 | + int nDoS; |
| 30 | + std::string strRejectReason; |
| 31 | + unsigned char chRejectCode; |
| 32 | + bool corruptionPossible; |
| 33 | +public: |
| 34 | + CValidationState() : mode(MODE_VALID), nDoS(0), chRejectCode(0), corruptionPossible(false) {} |
| 35 | + bool DoS(int level, bool ret = false, |
| 36 | + unsigned char chRejectCodeIn=0, std::string strRejectReasonIn="", |
| 37 | + bool corruptionIn=false) { |
| 38 | + chRejectCode = chRejectCodeIn; |
| 39 | + strRejectReason = strRejectReasonIn; |
| 40 | + corruptionPossible = corruptionIn; |
| 41 | + if (mode == MODE_ERROR) |
| 42 | + return ret; |
| 43 | + nDoS += level; |
| 44 | + mode = MODE_INVALID; |
| 45 | + return ret; |
| 46 | + } |
| 47 | + bool Invalid(bool ret = false, |
| 48 | + unsigned char _chRejectCode=0, std::string _strRejectReason="") { |
| 49 | + return DoS(0, ret, _chRejectCode, _strRejectReason); |
| 50 | + } |
| 51 | + bool Error(std::string strRejectReasonIn="") { |
| 52 | + if (mode == MODE_VALID) |
| 53 | + strRejectReason = strRejectReasonIn; |
| 54 | + mode = MODE_ERROR; |
| 55 | + return false; |
| 56 | + } |
| 57 | + bool IsValid() const { |
| 58 | + return mode == MODE_VALID; |
| 59 | + } |
| 60 | + bool IsInvalid() const { |
| 61 | + return mode == MODE_INVALID; |
| 62 | + } |
| 63 | + bool IsError() const { |
| 64 | + return mode == MODE_ERROR; |
| 65 | + } |
| 66 | + bool IsInvalid(int &nDoSOut) const { |
| 67 | + if (IsInvalid()) { |
| 68 | + nDoSOut = nDoS; |
| 69 | + return true; |
| 70 | + } |
| 71 | + return false; |
| 72 | + } |
| 73 | + bool CorruptionPossible() const { |
| 74 | + return corruptionPossible; |
| 75 | + } |
| 76 | + unsigned char GetRejectCode() const { return chRejectCode; } |
| 77 | + std::string GetRejectReason() const { return strRejectReason; } |
| 78 | +}; |
| 79 | + |
| 80 | +#endif // BITCOIN_CONSENSUS_VALIDATION_H |
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