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Diffstat (limited to 'src/policy/policy.h')
| -rw-r--r-- | src/policy/policy.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/policy/policy.h b/src/policy/policy.h new file mode 100644 index 0000000000..29a8cc57c2 --- /dev/null +++ b/src/policy/policy.h @@ -0,0 +1,73 @@ +// Copyright (c) 2009-2010 Satoshi Nakamoto +// Copyright (c) 2009-2015 The Bitcoin developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_POLICY_POLICY_H +#define BITCOIN_POLICY_POLICY_H + +#include "consensus/consensus.h" +#include "script/interpreter.h" +#include "script/standard.h" + +#include <string> + +class CCoinsViewCache; + +/** Default for -blockmaxsize, which controls the maximum size of block the mining code will create **/ +static const unsigned int DEFAULT_BLOCK_MAX_SIZE = 750000; +/** Default for -blockprioritysize, maximum space for zero/low-fee transactions **/ +static const unsigned int DEFAULT_BLOCK_PRIORITY_SIZE = 0; +/** Default for -blockmaxcost, which control the range of block costs the mining code will create **/ +static const unsigned int DEFAULT_BLOCK_MAX_COST = 3000000; +/** The maximum size for transactions we're willing to relay/mine */ +static const unsigned int MAX_STANDARD_TX_COST = 400000; +/** Maximum number of signature check operations in an IsStandard() P2SH script */ +static const unsigned int MAX_P2SH_SIGOPS = 15; +/** The maximum number of sigops we're willing to relay/mine in a single tx */ +static const unsigned int MAX_STANDARD_TX_SIGOPS_COST = MAX_BLOCK_SIGOPS_COST/5; +/** Default for -maxmempool, maximum megabytes of mempool memory usage */ +static const unsigned int DEFAULT_MAX_MEMPOOL_SIZE = 300; +/** + * Standard script verification flags that standard transactions will comply + * with. However scripts violating these flags may still be present in valid + * blocks and we must accept those blocks. + */ +static const unsigned int STANDARD_SCRIPT_VERIFY_FLAGS = MANDATORY_SCRIPT_VERIFY_FLAGS | + SCRIPT_VERIFY_DERSIG | + SCRIPT_VERIFY_STRICTENC | + SCRIPT_VERIFY_MINIMALDATA | + SCRIPT_VERIFY_NULLDUMMY | + SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS | + SCRIPT_VERIFY_CLEANSTACK | + SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY | + SCRIPT_VERIFY_CHECKSEQUENCEVERIFY | + SCRIPT_VERIFY_LOW_S | + SCRIPT_VERIFY_WITNESS | + SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM; + +/** For convenience, standard but not mandatory verify flags. */ +static const unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS = STANDARD_SCRIPT_VERIFY_FLAGS & ~MANDATORY_SCRIPT_VERIFY_FLAGS; + +/** Used as the flags parameter to sequence and nLocktime checks in non-consensus code. */ +static const unsigned int STANDARD_LOCKTIME_VERIFY_FLAGS = LOCKTIME_VERIFY_SEQUENCE | + LOCKTIME_MEDIAN_TIME_PAST; + +bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType); + /** + * Check for standard transaction types + * @return True if all outputs (scriptPubKeys) use only standard transaction forms + */ +bool IsStandardTx(const CTransaction& tx, std::string& reason); + /** + * Check for standard transaction types + * @param[in] mapInputs Map of previous transactions that have outputs we're spending + * @return True if all inputs (scriptSigs) use only standard transaction forms + */ +bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs); + +/** Compute the virtual transaction size (cost reinterpreted as bytes). */ +int64_t GetVirtualTransactionSize(int64_t nCost); +int64_t GetVirtualTransactionSize(const CTransaction& tx); + +#endif // BITCOIN_POLICY_POLICY_H |