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d4a42334d4
7c70438Get rid of the dummy CCoinsViewCache constructor arg (Pieter Wuille)ed27e53Add coins_tests with a large randomized CCoinViewCache test. (Pieter Wuille)058b08cDo not keep fully spent but unwritten CCoins entries cached. (Pieter Wuille)c9d1a81Get rid of CCoinsView's SetCoins and SetBestBlock. (Pieter Wuille)f28aec0Use ModifyCoins instead of mutable GetCoins. (Pieter Wuille)
375 lines
13 KiB
C++
375 lines
13 KiB
C++
// Copyright (c) 2012-2013 The Bitcoin Core developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "key.h"
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#include "keystore.h"
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#include "main.h"
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#include "script/script.h"
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#include "script/sign.h"
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#ifdef ENABLE_WALLET
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#include "wallet_ismine.h"
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#endif
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#include <vector>
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#include <boost/test/unit_test.hpp>
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using namespace std;
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// Helpers:
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static std::vector<unsigned char>
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Serialize(const CScript& s)
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{
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std::vector<unsigned char> sSerialized(s);
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return sSerialized;
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}
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static bool
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Verify(const CScript& scriptSig, const CScript& scriptPubKey, bool fStrict)
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{
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// Create dummy to/from transactions:
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CMutableTransaction txFrom;
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txFrom.vout.resize(1);
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txFrom.vout[0].scriptPubKey = scriptPubKey;
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CMutableTransaction txTo;
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txTo.vin.resize(1);
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txTo.vout.resize(1);
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txTo.vin[0].prevout.n = 0;
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txTo.vin[0].prevout.hash = txFrom.GetHash();
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txTo.vin[0].scriptSig = scriptSig;
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txTo.vout[0].nValue = 1;
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return VerifyScript(scriptSig, scriptPubKey, fStrict ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, SignatureChecker(txTo, 0));
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}
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BOOST_AUTO_TEST_SUITE(script_P2SH_tests)
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BOOST_AUTO_TEST_CASE(sign)
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{
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LOCK(cs_main);
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// Pay-to-script-hash looks like this:
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// scriptSig: <sig> <sig...> <serialized_script>
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// scriptPubKey: HASH160 <hash> EQUAL
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// Test SignSignature() (and therefore the version of Solver() that signs transactions)
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CBasicKeyStore keystore;
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CKey key[4];
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for (int i = 0; i < 4; i++)
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{
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key[i].MakeNewKey(true);
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keystore.AddKey(key[i]);
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}
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// 8 Scripts: checking all combinations of
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// different keys, straight/P2SH, pubkey/pubkeyhash
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CScript standardScripts[4];
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standardScripts[0] << key[0].GetPubKey() << OP_CHECKSIG;
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standardScripts[1] = GetScriptForDestination(key[1].GetPubKey().GetID());
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standardScripts[2] << key[1].GetPubKey() << OP_CHECKSIG;
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standardScripts[3] = GetScriptForDestination(key[2].GetPubKey().GetID());
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CScript evalScripts[4];
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for (int i = 0; i < 4; i++)
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{
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keystore.AddCScript(standardScripts[i]);
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evalScripts[i] = GetScriptForDestination(standardScripts[i].GetID());
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}
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CMutableTransaction txFrom; // Funding transaction:
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string reason;
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txFrom.vout.resize(8);
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for (int i = 0; i < 4; i++)
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{
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txFrom.vout[i].scriptPubKey = evalScripts[i];
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txFrom.vout[i].nValue = COIN;
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txFrom.vout[i+4].scriptPubKey = standardScripts[i];
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txFrom.vout[i+4].nValue = COIN;
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}
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BOOST_CHECK(IsStandardTx(txFrom, reason));
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CMutableTransaction txTo[8]; // Spending transactions
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for (int i = 0; i < 8; i++)
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{
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txTo[i].vin.resize(1);
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txTo[i].vout.resize(1);
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txTo[i].vin[0].prevout.n = i;
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txTo[i].vin[0].prevout.hash = txFrom.GetHash();
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txTo[i].vout[0].nValue = 1;
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#ifdef ENABLE_WALLET
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BOOST_CHECK_MESSAGE(IsMine(keystore, txFrom.vout[i].scriptPubKey), strprintf("IsMine %d", i));
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#endif
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}
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for (int i = 0; i < 8; i++)
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{
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BOOST_CHECK_MESSAGE(SignSignature(keystore, txFrom, txTo[i], 0), strprintf("SignSignature %d", i));
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}
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// All of the above should be OK, and the txTos have valid signatures
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// Check to make sure signature verification fails if we use the wrong ScriptSig:
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for (int i = 0; i < 8; i++)
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for (int j = 0; j < 8; j++)
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{
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CScript sigSave = txTo[i].vin[0].scriptSig;
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txTo[i].vin[0].scriptSig = txTo[j].vin[0].scriptSig;
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bool sigOK = CScriptCheck(CCoins(txFrom, 0), txTo[i], 0, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_STRICTENC, false)();
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if (i == j)
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BOOST_CHECK_MESSAGE(sigOK, strprintf("VerifySignature %d %d", i, j));
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else
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BOOST_CHECK_MESSAGE(!sigOK, strprintf("VerifySignature %d %d", i, j));
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txTo[i].vin[0].scriptSig = sigSave;
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}
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}
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BOOST_AUTO_TEST_CASE(norecurse)
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{
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// Make sure only the outer pay-to-script-hash does the
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// extra-validation thing:
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CScript invalidAsScript;
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invalidAsScript << OP_INVALIDOPCODE << OP_INVALIDOPCODE;
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CScript p2sh = GetScriptForDestination(invalidAsScript.GetID());
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CScript scriptSig;
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scriptSig << Serialize(invalidAsScript);
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// Should not verify, because it will try to execute OP_INVALIDOPCODE
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BOOST_CHECK(!Verify(scriptSig, p2sh, true));
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// Try to recur, and verification should succeed because
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// the inner HASH160 <> EQUAL should only check the hash:
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CScript p2sh2 = GetScriptForDestination(p2sh.GetID());
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CScript scriptSig2;
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scriptSig2 << Serialize(invalidAsScript) << Serialize(p2sh);
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BOOST_CHECK(Verify(scriptSig2, p2sh2, true));
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}
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BOOST_AUTO_TEST_CASE(set)
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{
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LOCK(cs_main);
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// Test the CScript::Set* methods
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CBasicKeyStore keystore;
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CKey key[4];
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std::vector<CPubKey> keys;
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for (int i = 0; i < 4; i++)
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{
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key[i].MakeNewKey(true);
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keystore.AddKey(key[i]);
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keys.push_back(key[i].GetPubKey());
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}
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CScript inner[4];
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inner[0] = GetScriptForDestination(key[0].GetPubKey().GetID());
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inner[1] = GetScriptForMultisig(2, std::vector<CPubKey>(keys.begin(), keys.begin()+2));
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inner[2] = GetScriptForMultisig(1, std::vector<CPubKey>(keys.begin(), keys.begin()+2));
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inner[3] = GetScriptForMultisig(2, std::vector<CPubKey>(keys.begin(), keys.begin()+3));
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CScript outer[4];
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for (int i = 0; i < 4; i++)
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{
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outer[i] = GetScriptForDestination(inner[i].GetID());
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keystore.AddCScript(inner[i]);
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}
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CMutableTransaction txFrom; // Funding transaction:
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string reason;
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txFrom.vout.resize(4);
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for (int i = 0; i < 4; i++)
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{
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txFrom.vout[i].scriptPubKey = outer[i];
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txFrom.vout[i].nValue = CENT;
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}
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BOOST_CHECK(IsStandardTx(txFrom, reason));
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CMutableTransaction txTo[4]; // Spending transactions
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for (int i = 0; i < 4; i++)
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{
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txTo[i].vin.resize(1);
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txTo[i].vout.resize(1);
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txTo[i].vin[0].prevout.n = i;
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txTo[i].vin[0].prevout.hash = txFrom.GetHash();
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txTo[i].vout[0].nValue = 1*CENT;
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txTo[i].vout[0].scriptPubKey = inner[i];
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#ifdef ENABLE_WALLET
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BOOST_CHECK_MESSAGE(IsMine(keystore, txFrom.vout[i].scriptPubKey), strprintf("IsMine %d", i));
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#endif
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}
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for (int i = 0; i < 4; i++)
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{
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BOOST_CHECK_MESSAGE(SignSignature(keystore, txFrom, txTo[i], 0), strprintf("SignSignature %d", i));
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BOOST_CHECK_MESSAGE(IsStandardTx(txTo[i], reason), strprintf("txTo[%d].IsStandard", i));
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}
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}
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BOOST_AUTO_TEST_CASE(is)
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{
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// Test CScript::IsPayToScriptHash()
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uint160 dummy;
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CScript p2sh;
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p2sh << OP_HASH160 << dummy << OP_EQUAL;
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BOOST_CHECK(p2sh.IsPayToScriptHash());
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// Not considered pay-to-script-hash if using one of the OP_PUSHDATA opcodes:
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static const unsigned char direct[] = { OP_HASH160, 20, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, OP_EQUAL };
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BOOST_CHECK(CScript(direct, direct+sizeof(direct)).IsPayToScriptHash());
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static const unsigned char pushdata1[] = { OP_HASH160, OP_PUSHDATA1, 20, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, OP_EQUAL };
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BOOST_CHECK(!CScript(pushdata1, pushdata1+sizeof(pushdata1)).IsPayToScriptHash());
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static const unsigned char pushdata2[] = { OP_HASH160, OP_PUSHDATA2, 20,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, OP_EQUAL };
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BOOST_CHECK(!CScript(pushdata2, pushdata2+sizeof(pushdata2)).IsPayToScriptHash());
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static const unsigned char pushdata4[] = { OP_HASH160, OP_PUSHDATA4, 20,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, OP_EQUAL };
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BOOST_CHECK(!CScript(pushdata4, pushdata4+sizeof(pushdata4)).IsPayToScriptHash());
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CScript not_p2sh;
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BOOST_CHECK(!not_p2sh.IsPayToScriptHash());
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not_p2sh.clear(); not_p2sh << OP_HASH160 << dummy << dummy << OP_EQUAL;
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BOOST_CHECK(!not_p2sh.IsPayToScriptHash());
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not_p2sh.clear(); not_p2sh << OP_NOP << dummy << OP_EQUAL;
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BOOST_CHECK(!not_p2sh.IsPayToScriptHash());
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not_p2sh.clear(); not_p2sh << OP_HASH160 << dummy << OP_CHECKSIG;
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BOOST_CHECK(!not_p2sh.IsPayToScriptHash());
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}
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BOOST_AUTO_TEST_CASE(switchover)
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{
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// Test switch over code
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CScript notValid;
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notValid << OP_11 << OP_12 << OP_EQUALVERIFY;
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CScript scriptSig;
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scriptSig << Serialize(notValid);
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CScript fund = GetScriptForDestination(notValid.GetID());
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// Validation should succeed under old rules (hash is correct):
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BOOST_CHECK(Verify(scriptSig, fund, false));
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// Fail under new:
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BOOST_CHECK(!Verify(scriptSig, fund, true));
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}
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BOOST_AUTO_TEST_CASE(AreInputsStandard)
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{
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LOCK(cs_main);
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CCoinsView coinsDummy;
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CCoinsViewCache coins(&coinsDummy);
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CBasicKeyStore keystore;
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CKey key[6];
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vector<CPubKey> keys;
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for (int i = 0; i < 6; i++)
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{
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key[i].MakeNewKey(true);
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keystore.AddKey(key[i]);
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}
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for (int i = 0; i < 3; i++)
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keys.push_back(key[i].GetPubKey());
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CMutableTransaction txFrom;
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txFrom.vout.resize(7);
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// First three are standard:
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CScript pay1 = GetScriptForDestination(key[0].GetPubKey().GetID());
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keystore.AddCScript(pay1);
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CScript pay1of3 = GetScriptForMultisig(1, keys);
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txFrom.vout[0].scriptPubKey = GetScriptForDestination(pay1.GetID()); // P2SH (OP_CHECKSIG)
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txFrom.vout[0].nValue = 1000;
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txFrom.vout[1].scriptPubKey = pay1; // ordinary OP_CHECKSIG
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txFrom.vout[1].nValue = 2000;
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txFrom.vout[2].scriptPubKey = pay1of3; // ordinary OP_CHECKMULTISIG
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txFrom.vout[2].nValue = 3000;
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// vout[3] is complicated 1-of-3 AND 2-of-3
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// ... that is OK if wrapped in P2SH:
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CScript oneAndTwo;
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oneAndTwo << OP_1 << key[0].GetPubKey() << key[1].GetPubKey() << key[2].GetPubKey();
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oneAndTwo << OP_3 << OP_CHECKMULTISIGVERIFY;
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oneAndTwo << OP_2 << key[3].GetPubKey() << key[4].GetPubKey() << key[5].GetPubKey();
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oneAndTwo << OP_3 << OP_CHECKMULTISIG;
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keystore.AddCScript(oneAndTwo);
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txFrom.vout[3].scriptPubKey = GetScriptForDestination(oneAndTwo.GetID());
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txFrom.vout[3].nValue = 4000;
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// vout[4] is max sigops:
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CScript fifteenSigops; fifteenSigops << OP_1;
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for (unsigned i = 0; i < MAX_P2SH_SIGOPS; i++)
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fifteenSigops << key[i%3].GetPubKey();
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fifteenSigops << OP_15 << OP_CHECKMULTISIG;
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keystore.AddCScript(fifteenSigops);
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txFrom.vout[4].scriptPubKey = GetScriptForDestination(fifteenSigops.GetID());
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txFrom.vout[4].nValue = 5000;
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// vout[5/6] are non-standard because they exceed MAX_P2SH_SIGOPS
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CScript sixteenSigops; sixteenSigops << OP_16 << OP_CHECKMULTISIG;
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keystore.AddCScript(sixteenSigops);
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txFrom.vout[5].scriptPubKey = GetScriptForDestination(fifteenSigops.GetID());
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txFrom.vout[5].nValue = 5000;
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CScript twentySigops; twentySigops << OP_CHECKMULTISIG;
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keystore.AddCScript(twentySigops);
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txFrom.vout[6].scriptPubKey = GetScriptForDestination(twentySigops.GetID());
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txFrom.vout[6].nValue = 6000;
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coins.ModifyCoins(txFrom.GetHash())->FromTx(txFrom, 0);
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CMutableTransaction txTo;
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txTo.vout.resize(1);
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txTo.vout[0].scriptPubKey = GetScriptForDestination(key[1].GetPubKey().GetID());
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txTo.vin.resize(5);
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for (int i = 0; i < 5; i++)
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{
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txTo.vin[i].prevout.n = i;
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txTo.vin[i].prevout.hash = txFrom.GetHash();
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}
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BOOST_CHECK(SignSignature(keystore, txFrom, txTo, 0));
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BOOST_CHECK(SignSignature(keystore, txFrom, txTo, 1));
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BOOST_CHECK(SignSignature(keystore, txFrom, txTo, 2));
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// SignSignature doesn't know how to sign these. We're
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// not testing validating signatures, so just create
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// dummy signatures that DO include the correct P2SH scripts:
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txTo.vin[3].scriptSig << OP_11 << OP_11 << static_cast<vector<unsigned char> >(oneAndTwo);
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txTo.vin[4].scriptSig << static_cast<vector<unsigned char> >(fifteenSigops);
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BOOST_CHECK(::AreInputsStandard(txTo, coins));
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// 22 P2SH sigops for all inputs (1 for vin[0], 6 for vin[3], 15 for vin[4]
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BOOST_CHECK_EQUAL(GetP2SHSigOpCount(txTo, coins), 22U);
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// Make sure adding crap to the scriptSigs makes them non-standard:
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for (int i = 0; i < 3; i++)
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{
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CScript t = txTo.vin[i].scriptSig;
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txTo.vin[i].scriptSig = (CScript() << 11) + t;
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BOOST_CHECK(!::AreInputsStandard(txTo, coins));
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txTo.vin[i].scriptSig = t;
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}
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CMutableTransaction txToNonStd1;
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txToNonStd1.vout.resize(1);
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txToNonStd1.vout[0].scriptPubKey = GetScriptForDestination(key[1].GetPubKey().GetID());
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txToNonStd1.vout[0].nValue = 1000;
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txToNonStd1.vin.resize(1);
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txToNonStd1.vin[0].prevout.n = 5;
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txToNonStd1.vin[0].prevout.hash = txFrom.GetHash();
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txToNonStd1.vin[0].scriptSig << static_cast<vector<unsigned char> >(sixteenSigops);
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BOOST_CHECK(!::AreInputsStandard(txToNonStd1, coins));
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BOOST_CHECK_EQUAL(GetP2SHSigOpCount(txToNonStd1, coins), 16U);
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CMutableTransaction txToNonStd2;
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txToNonStd2.vout.resize(1);
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txToNonStd2.vout[0].scriptPubKey = GetScriptForDestination(key[1].GetPubKey().GetID());
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txToNonStd2.vout[0].nValue = 1000;
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txToNonStd2.vin.resize(1);
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txToNonStd2.vin[0].prevout.n = 6;
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txToNonStd2.vin[0].prevout.hash = txFrom.GetHash();
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txToNonStd2.vin[0].scriptSig << static_cast<vector<unsigned char> >(twentySigops);
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BOOST_CHECK(!::AreInputsStandard(txToNonStd2, coins));
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BOOST_CHECK_EQUAL(GetP2SHSigOpCount(txToNonStd2, coins), 20U);
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}
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BOOST_AUTO_TEST_SUITE_END()
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