src/script/bitcoinconsensus.h

   1 // Copyright (c) 2009-2010 Satoshi Nakamoto
   2 // Copyright (c) 2009-2016 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_BITCOINCONSENSUS_H
   7 #define BITCOIN_BITCOINCONSENSUS_H
   8
   9 #include <stdint.h>
  10
  11 #if defined(BUILD_BITCOIN_INTERNAL) && defined(HAVE_CONFIG_H)
  12 #include "config/bitcoin-config.h"
  13   #if defined(_WIN32)
  14     #if defined(DLL_EXPORT)
  15       #if defined(HAVE_FUNC_ATTRIBUTE_DLLEXPORT)
  16         #define EXPORT_SYMBOL __declspec(dllexport)
  17       #else
  18         #define EXPORT_SYMBOL
  19       #endif
  20     #endif
  21   #elif defined(HAVE_FUNC_ATTRIBUTE_VISIBILITY)
  22     #define EXPORT_SYMBOL __attribute__ ((visibility ("default")))
  23   #endif
  24 #elif defined(MSC_VER) && !defined(STATIC_LIBBITCOINCONSENSUS)
  25   #define EXPORT_SYMBOL __declspec(dllimport)
  26 #endif
  27
  28 #ifndef EXPORT_SYMBOL
  29   #define EXPORT_SYMBOL
  30 #endif
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 #define BITCOINCONSENSUS_API_VER 1
  37
  38 typedef enum bitcoinconsensus_error_t
  39 {
  40     bitcoinconsensus_ERR_OK = 0,
  41     bitcoinconsensus_ERR_TX_INDEX,
  42     bitcoinconsensus_ERR_TX_SIZE_MISMATCH,
  43     bitcoinconsensus_ERR_TX_DESERIALIZE,
  44     bitcoinconsensus_ERR_AMOUNT_REQUIRED,
  45     bitcoinconsensus_ERR_INVALID_FLAGS,
  46 } bitcoinconsensus_error;
  47
  48 /** Script verification flags */
  49 enum
  50 {
  51     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_NONE                = 0,
  52     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH                = (1U << 0), // evaluate P2SH (BIP16) subscripts
  53     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG              = (1U << 2), // enforce strict DER (BIP66) compliance
  54     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_NULLDUMMY           = (1U << 4), // enforce NULLDUMMY (BIP147)
  55     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKLOCKTIMEVERIFY = (1U << 9), // enable CHECKLOCKTIMEVERIFY (BIP65)
  56     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKSEQUENCEVERIFY = (1U << 10), // enable CHECKSEQUENCEVERIFY (BIP112)
  57     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_WITNESS             = (1U << 11), // enable WITNESS (BIP141)
  58     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_ALL                 = bitcoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH | bitcoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG |
  59                                                                bitcoinconsensus_SCRIPT_FLAGS_VERIFY_NULLDUMMY | bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKLOCKTIMEVERIFY |
  60                                                                bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKSEQUENCEVERIFY | bitcoinconsensus_SCRIPT_FLAGS_VERIFY_WITNESS
  61 };
  62
  63 /// Returns 1 if the input nIn of the serialized transaction pointed to by
  64 /// txTo correctly spends the scriptPubKey pointed to by scriptPubKey under
  65 /// the additional constraints specified by flags.
  66 /// If not nullptr, err will contain an error/success code for the operation
  67 EXPORT_SYMBOL int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen,
  68                                                  const unsigned char *txTo        , unsigned int txToLen,
  69                                                  unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err);
  70
  71 EXPORT_SYMBOL int bitcoinconsensus_verify_script_with_amount(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, int64_t amount,
  72                                     const unsigned char *txTo        , unsigned int txToLen,
  73                                     unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err);
  74
  75 EXPORT_SYMBOL unsigned int bitcoinconsensus_version();
  76
  77 #ifdef __cplusplus
  78 } // extern "C"
  79 #endif
  80
  81 #undef EXPORT_SYMBOL
  82
  83 #endif // BITCOIN_BITCOINCONSENSUS_H