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validation: only check input scripts once

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Previously, we would check failing input scripts twice when considering
a transaction for the mempool, in order to distinguish policy failures
from consensus failures. This allowed us both to provide a different
error message and to discourage peers for consensus failures. Because we
are no longer discouraging peers for consensus failures during tx relay,
and because checking a script can be expensive, only do this once.

Also renames non-mandatory-script-verify-flag error to
mempool-script-verify-flag-failed.
This commit is contained in:
Anthony Towns
2025-07-23 10:51:06 +10:00
parent 266dd0e10d
commit b29ae9efdf
10 changed files with 57 additions and 68 deletions
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4
test/functional/feature_dersig.py
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@@ -121,8 +121,8 @@ class BIP66Test(BitcoinTestFramework):
'txid': spendtx_txid,
'wtxid': spendtx_wtxid,
'allowed': False,
'reject-reason': 'mandatory-script-verify-flag-failed (Non-canonical DER signature)',
'reject-details': 'mandatory-script-verify-flag-failed (Non-canonical DER signature), ' +
'reject-reason': 'mempool-script-verify-flag-failed (Non-canonical DER signature)',
'reject-details': 'mempool-script-verify-flag-failed (Non-canonical DER signature), ' +
f"input 0 of {spendtx_txid} (wtxid {spendtx_wtxid}), spending {coin_txid}:0"
}],
self.nodes[0].testmempoolaccept(rawtxs=[spendtx.serialize().hex()], maxfeerate=0),