diff options
Diffstat (limited to 'src/policy/policy.h')
| -rw-r--r-- | src/policy/policy.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/policy/policy.h b/src/policy/policy.h index 9d6ff1233b..fb528d7486 100644 --- a/src/policy/policy.h +++ b/src/policy/policy.h @@ -30,6 +30,12 @@ static const unsigned int MAX_STANDARD_TX_SIGOPS_COST = MAX_BLOCK_SIGOPS_COST/5; static const unsigned int DEFAULT_MAX_MEMPOOL_SIZE = 300; /** Default for -bytespersigop */ static const unsigned int DEFAULT_BYTES_PER_SIGOP = 20; +/** The maximum number of witness stack items in a standard P2WSH script */ +static const unsigned int MAX_STANDARD_P2WSH_STACK_ITEMS = 100; +/** The maximum size of each witness stack item in a standard P2WSH script */ +static const unsigned int MAX_STANDARD_P2WSH_STACK_ITEM_SIZE = 80; +/** The maximum size of a standard witnessScript */ +static const unsigned int MAX_STANDARD_P2WSH_SCRIPT_SIZE = 3600; /** * Standard script verification flags that standard transactions will comply * with. However scripts violating these flags may still be present in valid @@ -69,6 +75,12 @@ bool IsStandardTx(const CTransaction& tx, std::string& reason, const bool witnes * @return True if all inputs (scriptSigs) use only standard transaction forms */ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs); + /** + * Check if the transaction is over standard P2WSH resources limit: + * 3600bytes witnessScript size, 80bytes per witness stack element, 100 witness stack elements + * These limits are adequate for multi-signature up to n-of-100 using OP_CHECKSIG, OP_ADD, and OP_EQUAL, + */ +bool IsWitnessStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs); extern unsigned int nBytesPerSigOp; |