X-Git-Url: https://git.novaco.in/?p=novacoin.git;a=blobdiff_plain;f=src%2Fscript.h;h=8dd7ce986d319608f85eb806700ddd797e4e605f;hp=f490631662c8dc9f57e3c8a9cc3b923fb403aa56;hb=9e58e0a8ca28b15a4bfa677f5b23891972db40fd;hpb=42c55f2e8a14a2f1c504cfe62e3d1717e8ac5454 diff --git a/src/script.h b/src/script.h index f490631..8dd7ce9 100644 --- a/src/script.h +++ b/src/script.h @@ -12,14 +12,37 @@ #include "keystore.h" #include "bignum.h" +#include "base58.h" typedef std::vector valtype; class CTransaction; +class CBitcoinAddress; static const unsigned int MAX_SCRIPT_ELEMENT_SIZE = 520; // bytes -/** IsMine() return codes */ +// Setting nSequence to this value for every input in a transaction +// disables nLockTime. +static const uint32_t SEQUENCE_FINAL = 0xffffffff; + +// Threshold for inverted nSequence: below this value it is interpreted +// as a relative lock-time, otherwise ignored. +//static const uint32_t SEQUENCE_THRESHOLD = 0x80000000; + +// If this flag set, CTxIn::nSequence is NOT interpreted as a +// relative lock-time. +static const uint32_t SEQUENCE_LOCKTIME_DISABLE_FLAG = 0x80000000; + +// If CTxIn::nSequence encodes a relative lock-time and this flag +// is set, the relative lock-time has units of 512 seconds, +// otherwise it specifies blocks with a granularity of 1. +static const uint32_t SEQUENCE_LOCKTIME_TYPE_FLAG = 0x00400000; + +// If CTxIn::nSequence encodes a relative lock-time, this mask is +// applied to extract that lock-time from the sequence field. +static const uint32_t SEQUENCE_LOCKTIME_MASK = 0x0000ffff; + +// IsMine() return codes enum isminetype { MINE_NO = 0, @@ -30,16 +53,16 @@ enum isminetype typedef uint8_t isminefilter; -/** Signature hash types/flags */ +// Signature hash types/flags enum { SIGHASH_ALL = 1, SIGHASH_NONE = 2, SIGHASH_SINGLE = 3, - SIGHASH_ANYONECANPAY = 0x80, + SIGHASH_ANYONECANPAY = 0x80 }; -/** Script verification flags */ +// Script verification flags enum { SCRIPT_VERIFY_NONE = 0, @@ -48,6 +71,8 @@ enum SCRIPT_VERIFY_LOW_S = (1U << 2), // enforce low S values in signatures (depends on STRICTENC) SCRIPT_VERIFY_NOCACHE = (1U << 3), // do not store results in signature cache (but do query it) SCRIPT_VERIFY_NULLDUMMY = (1U << 4), // verify dummy stack item consumed by CHECKMULTISIG is of zero-length + SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY = (1U << 9), + SCRIPT_VERIFY_CHECKSEQUENCEVERIFY = (1U << 10) }; // Strict verification: @@ -71,23 +96,21 @@ static const unsigned int MANDATORY_SCRIPT_VERIFY_FLAGS = SCRIPT_VERIFY_P2SH; // blocks and we must accept those blocks. static const unsigned int STRICT_FLAGS = MANDATORY_SCRIPT_VERIFY_FLAGS | STRICT_FORMAT_FLAGS; -// Soft verifications, no extended signature format checkings -static const unsigned int SOFT_FLAGS = STRICT_FLAGS & ~STRICT_FORMAT_FLAGS; - enum txnouttype { TX_NONSTANDARD, // 'standard' transaction types: TX_PUBKEY, + TX_PUBKEY_DROP, TX_PUBKEYHASH, TX_SCRIPTHASH, TX_MULTISIG, - TX_NULL_DATA, + TX_NULL_DATA }; const char* GetTxnOutputType(txnouttype t); -/** Script opcodes */ +// Script opcodes enum opcodetype { // push value @@ -127,6 +150,8 @@ enum opcodetype OP_ENDIF = 0x68, OP_VERIFY = 0x69, OP_RETURN = 0x6a, + OP_CHECKLOCKTIMEVERIFY = 0xb1, + OP_CHECKSEQUENCEVERIFY = 0xb2, // stack ops OP_TOALTSTACK = 0x6b, @@ -212,8 +237,6 @@ enum opcodetype // expansion OP_NOP1 = 0xb0, - OP_NOP2 = 0xb1, - OP_NOP3 = 0xb2, OP_NOP4 = 0xb3, OP_NOP5 = 0xb4, OP_NOP6 = 0xb5, @@ -222,16 +245,15 @@ enum opcodetype OP_NOP9 = 0xb8, OP_NOP10 = 0xb9, - - // template matching params OP_SMALLDATA = 0xf9, OP_SMALLINTEGER = 0xfa, OP_PUBKEYS = 0xfb, + OP_INTEGER = 0xfc, OP_PUBKEYHASH = 0xfd, OP_PUBKEY = 0xfe, - OP_INVALIDOPCODE = 0xff, + OP_INVALIDOPCODE = 0xff }; const char* GetOpName(opcodetype opcode); @@ -256,7 +278,7 @@ inline std::string StackString(const std::vector >& v return str; } -/** Serialized script, used inside transaction inputs and outputs */ +// Serialized script, used inside transaction inputs and outputs class CScript : public std::vector { protected: @@ -358,7 +380,7 @@ public: CScript& operator<<(const CPubKey& key) { - std::vector vchKey = key.Raw(); + std::vector vchKey(key.begin(), key.end()); return (*this) << vchKey; } @@ -489,7 +511,7 @@ public: if (opcode == OP_0) return 0; assert(opcode >= OP_1 && opcode <= OP_16); - return (int)opcode - (int)(OP_1 - 1); + return (opcode - (OP_1 - 1)); } static opcodetype EncodeOP_N(int n) { @@ -540,10 +562,8 @@ public: bool IsPayToScriptHash() const; - // Called by CTransaction::IsStandard and P2SH VerifyScript (which makes it consensus-critical). - bool IsPushOnly() const + bool IsPushOnly(const_iterator pc) const { - const_iterator pc = begin(); while (pc < end()) { opcodetype opcode; @@ -555,11 +575,18 @@ public: return true; } + // Called by CTransaction::IsStandard and P2SH VerifyScript (which makes it consensus-critical). + bool IsPushOnly() const + { + return this->IsPushOnly(begin()); + } + // Called by CTransaction::IsStandard. bool HasCanonicalPushes() const; void SetDestination(const CTxDestination& address); - void SetMultisig(int nRequired, const std::vector& keys); + void SetAddress(const CBitcoinAddress& dest); + void SetMultisig(int nRequired, const std::vector& keys); void PrintHex() const @@ -610,9 +637,11 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector >& vSolutions); bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType); isminetype IsMine(const CKeyStore& keystore, const CScript& scriptPubKey); -isminetype IsMine(const CKeyStore& keystore, const CTxDestination& dest); +//isminetype IsMine(const CKeyStore& keystore, const CTxDestination& dest); +isminetype IsMine(const CKeyStore& keystore, const CBitcoinAddress& dest); void ExtractAffectedKeys(const CKeyStore &keystore, const CScript& scriptPubKey, std::vector &vKeys); bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet); +bool ExtractAddress(const CKeyStore &keystore, const CScript& scriptPubKey, CBitcoinAddress& addressRet); bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, std::vector& addressRet, int& nRequiredRet); bool SignSignature(const CKeyStore& keystore, const CScript& fromPubKey, CTransaction& txTo, unsigned int nIn, int nHashType=SIGHASH_ALL); bool SignSignature(const CKeyStore& keystore, const CTransaction& txFrom, CTransaction& txTo, unsigned int nIn, int nHashType=SIGHASH_ALL); @@ -620,6 +649,6 @@ bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const C // Given two sets of signatures for scriptPubKey, possibly with OP_0 placeholders, // combine them intelligently and return the result. -CScript CombineSignatures(CScript scriptPubKey, const CTransaction& txTo, unsigned int nIn, const CScript& scriptSig1, const CScript& scriptSig2); +CScript CombineSignatures(const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, const CScript& scriptSig1, const CScript& scriptSig2); #endif