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| author | Pieter Wuille <pieter@wuille.net> | 2020-09-11 14:34:10 -0700 |
|---|---|---|
| committer | Pieter Wuille <pieter@wuille.net> | 2020-10-12 17:18:47 -0700 |
| commit | e9a021d7e6a454d610a45cb9b3995f0d96a5fbb6 (patch) | |
| tree | 010e43f4b0a219779aaa562f6636e20ac18e848c /src/policy/policy.h | |
| parent | 865d2c37e2e44678498b7f425b65e01b1e231cde (diff) | |
| download | bitcoin-e9a021d7e6a454d610a45cb9b3995f0d96a5fbb6.tar.xz | |
Make Taproot spends standard + policy limits
This adds a `TxoutType::WITNESS_V1_TAPROOT` for P2TR outputs, and permits spending
them in standardness rules. No corresponding `CTxDestination` is added for it,
as that isn't needed until we want wallet integration. The taproot validation flags
are also enabled for mempool transactions, and standardness rules are added
(stack item size limit, no annexes).
Diffstat (limited to 'src/policy/policy.h')
| -rw-r--r-- | src/policy/policy.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/policy/policy.h b/src/policy/policy.h index 7f168ee20f..51d67b9390 100644 --- a/src/policy/policy.h +++ b/src/policy/policy.h @@ -40,6 +40,8 @@ static const bool DEFAULT_PERMIT_BAREMULTISIG = true; 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 each witness stack item in a standard BIP 342 script (Taproot, leaf version 0xc0) */ +static const unsigned int MAX_STANDARD_TAPSCRIPT_STACK_ITEM_SIZE = 80; /** The maximum size of a standard witnessScript */ static const unsigned int MAX_STANDARD_P2WSH_SCRIPT_SIZE = 3600; /** Min feerate for defining dust. Historically this has been based on the @@ -68,7 +70,11 @@ static constexpr unsigned int STANDARD_SCRIPT_VERIFY_FLAGS = MANDATORY_SCRIPT_VE SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE | - SCRIPT_VERIFY_CONST_SCRIPTCODE; + SCRIPT_VERIFY_CONST_SCRIPTCODE | + SCRIPT_VERIFY_TAPROOT | + SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_TAPROOT_VERSION | + SCRIPT_VERIFY_DISCOURAGE_OP_SUCCESS | + SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_PUBKEYTYPE; /** For convenience, standard but not mandatory verify flags. */ static constexpr unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS = STANDARD_SCRIPT_VERIFY_FLAGS & ~MANDATORY_SCRIPT_VERIFY_FLAGS; |