diff options
Diffstat (limited to 'qa')
| -rwxr-xr-x | qa/rpc-tests/p2p-segwit.py | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/qa/rpc-tests/p2p-segwit.py b/qa/rpc-tests/p2p-segwit.py index c2ea20bb84..16d1e86802 100755 --- a/qa/rpc-tests/p2p-segwit.py +++ b/qa/rpc-tests/p2p-segwit.py @@ -1706,6 +1706,116 @@ class SegWitTest(BitcoinTestFramework): assert(block_version & (1 << VB_WITNESS_BIT) != 0) self.nodes[0].setmocktime(0) # undo mocktime + def test_non_standard_witness(self): + print("\tTesting detection of non-standard P2WSH witness") + pad = chr(1).encode('latin-1') + + # Create scripts for tests + scripts = [] + scripts.append(CScript([OP_DROP] * 100)) + scripts.append(CScript([OP_DROP] * 99)) + scripts.append(CScript([pad * 59] * 59 + [OP_DROP] * 60)) + scripts.append(CScript([pad * 59] * 59 + [OP_DROP] * 61)) + + p2wsh_scripts = [] + + assert(len(self.utxo)) + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + + # For each script, generate a pair of P2WSH and P2SH-P2WSH output. + outputvalue = (self.utxo[0].nValue - 1000) // (len(scripts) * 2) + for i in scripts: + p2wsh = CScript([OP_0, sha256(i)]) + p2sh = hash160(p2wsh) + p2wsh_scripts.append(p2wsh) + tx.vout.append(CTxOut(outputvalue, p2wsh)) + tx.vout.append(CTxOut(outputvalue, CScript([OP_HASH160, p2sh, OP_EQUAL]))) + tx.rehash() + txid = tx.sha256 + self.test_node.test_transaction_acceptance(tx, with_witness=False, accepted=True) + + self.nodes[0].generate(1) + sync_blocks(self.nodes) + + # Creating transactions for tests + p2wsh_txs = [] + p2sh_txs = [] + for i in range(len(scripts)): + p2wsh_tx = CTransaction() + p2wsh_tx.vin.append(CTxIn(COutPoint(txid,i*2))) + p2wsh_tx.vout.append(CTxOut(outputvalue - 5000, CScript([OP_0, hash160(hex_str_to_bytes(""))]))) + p2wsh_tx.wit.vtxinwit.append(CTxInWitness()) + p2wsh_tx.rehash() + p2wsh_txs.append(p2wsh_tx) + p2sh_tx = CTransaction() + p2sh_tx.vin.append(CTxIn(COutPoint(txid,i*2+1), CScript([p2wsh_scripts[i]]))) + p2sh_tx.vout.append(CTxOut(outputvalue - 5000, CScript([OP_0, hash160(hex_str_to_bytes(""))]))) + p2sh_tx.wit.vtxinwit.append(CTxInWitness()) + p2sh_tx.rehash() + p2sh_txs.append(p2sh_tx) + + # Testing native P2WSH + # Witness stack size, excluding witnessScript, over 100 is non-standard + p2wsh_txs[0].wit.vtxinwit[0].scriptWitness.stack = [pad] * 101 + [scripts[0]] + self.std_node.test_transaction_acceptance(p2wsh_txs[0], True, False, b'bad-witness-nonstandard') + # Non-standard nodes should accept + self.test_node.test_transaction_acceptance(p2wsh_txs[0], True, True) + + # Stack element size over 80 bytes is non-standard + p2wsh_txs[1].wit.vtxinwit[0].scriptWitness.stack = [pad * 81] * 100 + [scripts[1]] + # It can't be used to blind a node to the transaction + self.std_node.announce_tx_and_wait_for_getdata(p2wsh_txs[1]) + self.std_node.test_transaction_acceptance(p2wsh_txs[1], True, False, b'bad-witness-nonstandard') + self.std_node.announce_tx_and_wait_for_getdata(p2wsh_txs[1]) + self.std_node.test_transaction_acceptance(p2wsh_txs[1], True, False, b'bad-witness-nonstandard') + # Non-standard nodes should accept + self.test_node.test_transaction_acceptance(p2wsh_txs[1], True, True) + # Standard nodes should accept if element size is not over 80 bytes + p2wsh_txs[1].wit.vtxinwit[0].scriptWitness.stack = [pad * 80] * 100 + [scripts[1]] + self.std_node.announce_tx_and_wait_for_getdata(p2wsh_txs[1]) + self.std_node.test_transaction_acceptance(p2wsh_txs[1], True, True) + + # witnessScript size at 3600 bytes is standard + p2wsh_txs[2].wit.vtxinwit[0].scriptWitness.stack = [pad, pad, scripts[2]] + self.test_node.test_transaction_acceptance(p2wsh_txs[2], True, True) + self.std_node.test_transaction_acceptance(p2wsh_txs[2], True, True) + + # witnessScript size at 3601 bytes is non-standard + p2wsh_txs[3].wit.vtxinwit[0].scriptWitness.stack = [pad, pad, pad, scripts[3]] + self.std_node.test_transaction_acceptance(p2wsh_txs[3], True, False, b'bad-witness-nonstandard') + # Non-standard nodes should accept + self.test_node.test_transaction_acceptance(p2wsh_txs[3], True, True) + + # Repeating the same tests with P2SH-P2WSH + p2sh_txs[0].wit.vtxinwit[0].scriptWitness.stack = [pad] * 101 + [scripts[0]] + self.std_node.test_transaction_acceptance(p2sh_txs[0], True, False, b'bad-witness-nonstandard') + self.test_node.test_transaction_acceptance(p2sh_txs[0], True, True) + p2sh_txs[1].wit.vtxinwit[0].scriptWitness.stack = [pad * 81] * 100 + [scripts[1]] + self.std_node.announce_tx_and_wait_for_getdata(p2sh_txs[1]) + self.std_node.test_transaction_acceptance(p2sh_txs[1], True, False, b'bad-witness-nonstandard') + self.std_node.announce_tx_and_wait_for_getdata(p2sh_txs[1]) + self.std_node.test_transaction_acceptance(p2sh_txs[1], True, False, b'bad-witness-nonstandard') + self.test_node.test_transaction_acceptance(p2sh_txs[1], True, True) + p2sh_txs[1].wit.vtxinwit[0].scriptWitness.stack = [pad * 80] * 100 + [scripts[1]] + self.std_node.announce_tx_and_wait_for_getdata(p2sh_txs[1]) + self.std_node.test_transaction_acceptance(p2sh_txs[1], True, True) + p2sh_txs[2].wit.vtxinwit[0].scriptWitness.stack = [pad, pad, scripts[2]] + self.test_node.test_transaction_acceptance(p2sh_txs[2], True, True) + self.std_node.test_transaction_acceptance(p2sh_txs[2], True, True) + p2sh_txs[3].wit.vtxinwit[0].scriptWitness.stack = [pad, pad, pad, scripts[3]] + self.std_node.test_transaction_acceptance(p2sh_txs[3], True, False, b'bad-witness-nonstandard') + self.test_node.test_transaction_acceptance(p2sh_txs[3], True, True) + + self.nodes[0].generate(1) # Mine and clean up the mempool of non-standard node + # Valid but non-standard transactions in a block should be accepted by standard node + sync_blocks(self.nodes) + assert_equal(len(self.nodes[0].getrawmempool()), 0) + assert_equal(len(self.nodes[1].getrawmempool()), 0) + + self.utxo.pop(0) + + def run_test(self): # Setup the p2p connections and start up the network thread. self.test_node = TestNode() # sets NODE_WITNESS|NODE_NETWORK @@ -1778,6 +1888,7 @@ class SegWitTest(BitcoinTestFramework): self.test_segwit_versions() self.test_premature_coinbase_witness_spend() self.test_signature_version_1() + self.test_non_standard_witness() sync_blocks(self.nodes) if self.test_upgrade: self.test_upgrade_after_activation(self.nodes[2], 2) |