Exemplo n.º 1
0
void
CAuxPow::initAuxPow (CBlockHeader& header)
{
  /* Set auxpow flag right now, since we take the block hash below.  */
  header.SetAuxpowVersion(true);

  /* Build a minimal coinbase script input for merge-mining.  */
  const uint256 blockHash = header.GetHash ();
  valtype inputData(blockHash.begin (), blockHash.end ());
  std::reverse (inputData.begin (), inputData.end ());
  inputData.push_back (1);
  inputData.insert (inputData.end (), 7, 0);

  /* Fake a parent-block coinbase with just the required input
     script and no outputs.  */
  CMutableTransaction coinbase;
  coinbase.vin.resize (1);
  coinbase.vin[0].prevout.SetNull ();
  coinbase.vin[0].scriptSig = (CScript () << inputData);
  assert (coinbase.vout.empty ());
  CTransactionRef coinbaseRef = MakeTransactionRef (coinbase);

  /* Build a fake parent block with the coinbase.  */
  CBlock parent;
  parent.nVersion = 1;
  parent.vtx.resize (1);
  parent.vtx[0] = coinbaseRef;
  parent.hashMerkleRoot = BlockMerkleRoot (parent);

  /* Construct the auxpow object.  */
  header.SetAuxpow (new CAuxPow (coinbaseRef));
  assert (header.auxpow->vChainMerkleBranch.empty ());
  header.auxpow->nChainIndex = 0;
  assert (header.auxpow->vMerkleBranch.empty ());
  header.auxpow->nIndex = 0;
  header.auxpow->parentBlock = parent;
}
Exemplo n.º 2
0
/**
 * Build the genesis block. Note that the output of its generation
 * transaction cannot be spent since it did not originally exist in the
 * database.
 *
 * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
 *   CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
 *     CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
 *     CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
 *   vMerkleTree: 4a5e1e
 */
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
    const char* pszTimestamp = "RevolverCoin: Bitcoin Price Hits Six-Month High Amid 5% Surge - Coindesk 27.05";
    const CScript genesisOutputScript = CScript() << ParseHex("04e6b3ff62fe1e27e35cabd879eac29e39b45811d061851f790453fc5109c5218bc2a5925a4d2496a38b07a9f531ec037a6207d0f370c1fc41cddd81d202e44203") << OP_CHECKSIG;
    return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
Exemplo n.º 3
0
// Test suite for ancestor feerate transaction selection.
// Implemented as an additional function, rather than a separate test case,
// to allow reusing the blockchain created in CreateNewBlock_validity.
// Note that this test assumes blockprioritysize is 0.
void TestPackageSelection(const CChainParams& chainparams, CScript scriptPubKey, std::vector<CTransaction *>& txFirst)
{
    // Test the ancestor feerate transaction selection.
    TestMemPoolEntryHelper entry;

    // Test that a medium fee transaction will be selected after a higher fee
    // rate package with a low fee rate parent.
    CMutableTransaction tx;
    tx.vin.resize(1);
    tx.vin[0].scriptSig = CScript() << OP_1;
    tx.vin[0].prevout.hash = txFirst[0]->GetHash();
    tx.vin[0].prevout.n = 0;
    tx.vout.resize(1);
    tx.vout[0].nValue = 5000000000LL - 1000;
    // This tx has a low fee: 1000 satoshis
    uint256 hashParentTx = tx.GetHash(); // save this txid for later use
    mempool.addUnchecked(hashParentTx, entry.Fee(1000).Time(GetTime()).SpendsCoinbase(true).FromTx(tx));

    // This tx has a medium fee: 10000 satoshis
    tx.vin[0].prevout.hash = txFirst[1]->GetHash();
    tx.vout[0].nValue = 5000000000LL - 10000;
    uint256 hashMediumFeeTx = tx.GetHash();
    mempool.addUnchecked(hashMediumFeeTx, entry.Fee(10000).Time(GetTime()).SpendsCoinbase(true).FromTx(tx));

    // This tx has a high fee, but depends on the first transaction
    tx.vin[0].prevout.hash = hashParentTx;
    tx.vout[0].nValue = 5000000000LL - 1000 - 50000; // 50k satoshi fee
    uint256 hashHighFeeTx = tx.GetHash();
    mempool.addUnchecked(hashHighFeeTx, entry.Fee(50000).Time(GetTime()).SpendsCoinbase(false).FromTx(tx));

    CBlockTemplate *pblocktemplate = BlockAssembler(chainparams).CreateNewBlock(scriptPubKey);
    BOOST_CHECK(pblocktemplate->block.vtx[1].GetHash() == hashParentTx);
    BOOST_CHECK(pblocktemplate->block.vtx[2].GetHash() == hashHighFeeTx);
    BOOST_CHECK(pblocktemplate->block.vtx[3].GetHash() == hashMediumFeeTx);

    // Test that a package below the min relay fee doesn't get included
    tx.vin[0].prevout.hash = hashHighFeeTx;
    tx.vout[0].nValue = 5000000000LL - 1000 - 50000; // 0 fee
    uint256 hashFreeTx = tx.GetHash();
    mempool.addUnchecked(hashFreeTx, entry.Fee(0).FromTx(tx));
    size_t freeTxSize = ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION);

    // Calculate a fee on child transaction that will put the package just
    // below the min relay fee (assuming 1 child tx of the same size).
    CAmount feeToUse = minRelayTxFee.GetFee(2*freeTxSize) - 1;

    tx.vin[0].prevout.hash = hashFreeTx;
    tx.vout[0].nValue = 5000000000LL - 1000 - 50000 - feeToUse;
    uint256 hashLowFeeTx = tx.GetHash();
    mempool.addUnchecked(hashLowFeeTx, entry.Fee(feeToUse).FromTx(tx));
    pblocktemplate = BlockAssembler(chainparams).CreateNewBlock(scriptPubKey);
    // Verify that the free tx and the low fee tx didn't get selected
    for (size_t i=0; i<pblocktemplate->block.vtx.size(); ++i) {
        BOOST_CHECK(pblocktemplate->block.vtx[i].GetHash() != hashFreeTx);
        BOOST_CHECK(pblocktemplate->block.vtx[i].GetHash() != hashLowFeeTx);
    }

    // Test that packages above the min relay fee do get included, even if one
    // of the transactions is below the min relay fee
    // Remove the low fee transaction and replace with a higher fee transaction
    std::list<CTransaction> dummy;
    mempool.removeRecursive(tx, dummy);
    tx.vout[0].nValue -= 2; // Now we should be just over the min relay fee
    hashLowFeeTx = tx.GetHash();
    mempool.addUnchecked(hashLowFeeTx, entry.Fee(feeToUse+2).FromTx(tx));
    pblocktemplate = BlockAssembler(chainparams).CreateNewBlock(scriptPubKey);
    BOOST_CHECK(pblocktemplate->block.vtx[4].GetHash() == hashFreeTx);
    BOOST_CHECK(pblocktemplate->block.vtx[5].GetHash() == hashLowFeeTx);

    // Test that transaction selection properly updates ancestor fee
    // calculations as ancestor transactions get included in a block.
    // Add a 0-fee transaction that has 2 outputs.
    tx.vin[0].prevout.hash = txFirst[2]->GetHash();
    tx.vout.resize(2);
    tx.vout[0].nValue = 5000000000LL - 100000000;
    tx.vout[1].nValue = 100000000; // 1BTC output
    uint256 hashFreeTx2 = tx.GetHash();
    mempool.addUnchecked(hashFreeTx2, entry.Fee(0).SpendsCoinbase(true).FromTx(tx));

    // This tx can't be mined by itself
    tx.vin[0].prevout.hash = hashFreeTx2;
    tx.vout.resize(1);
    feeToUse = minRelayTxFee.GetFee(freeTxSize);
    tx.vout[0].nValue = 5000000000LL - 100000000 - feeToUse;
    uint256 hashLowFeeTx2 = tx.GetHash();
    mempool.addUnchecked(hashLowFeeTx2, entry.Fee(feeToUse).SpendsCoinbase(false).FromTx(tx));
    pblocktemplate = BlockAssembler(chainparams).CreateNewBlock(scriptPubKey);

    // Verify that this tx isn't selected.
    for (size_t i=0; i<pblocktemplate->block.vtx.size(); ++i) {
        BOOST_CHECK(pblocktemplate->block.vtx[i].GetHash() != hashFreeTx2);
        BOOST_CHECK(pblocktemplate->block.vtx[i].GetHash() != hashLowFeeTx2);
    }

    // This tx will be mineable, and should cause hashLowFeeTx2 to be selected
    // as well.
    tx.vin[0].prevout.n = 1;
    tx.vout[0].nValue = 100000000 - 10000; // 10k satoshi fee
    mempool.addUnchecked(tx.GetHash(), entry.Fee(10000).FromTx(tx));
    pblocktemplate = BlockAssembler(chainparams).CreateNewBlock(scriptPubKey);
    BOOST_CHECK(pblocktemplate->block.vtx[8].GetHash() == hashLowFeeTx2);
}
Exemplo n.º 4
0
/**
 * Build the genesis block. Note that the output of its generation
 * transaction cannot be spent since it did not originally exist in the
 * database.
 *
 * CBlock(hash=00000ffd590b14, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=e0028e, nTime=1390095618, nBits=1e0ffff0, nNonce=28917698, vtx=1)
 *   CTransaction(hash=e0028e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
 *     CTxIn(COutPoint(000000, -1), coinbase 04ffff001d01044c5957697265642030392f4a616e2f3230313420546865204772616e64204578706572696d656e7420476f6573204c6976653a204f76657273746f636b2e636f6d204973204e6f7720416363657074696e6720426974636f696e73)
 *     CTxOut(nValue=50.00000000, scriptPubKey=0xA9037BAC7050C479B121CF)
 *   vMerkleTree: e0028e
 */
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward, int iNetworkID)
{
    const char* pszTimestamp = "The Independent 11/21/17 Elon Musk slams proposal to create an Artificial Intelligence God";
    const CScript genesisOutputScript = CScript() << ParseHex("040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9") << OP_CHECKSIG;
    return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward, iNetworkID);
}
Exemplo n.º 5
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
        pchMessageStart[0] = 0x04;
        pchMessageStart[1] = 0x05;
        pchMessageStart[2] = 0x05;
        pchMessageStart[3] = 0x04;
        nDefaultPort = 25536;
        nRPCPort = 25537;
        bnProofOfWorkLimit = CBigNum(~uint256(0) >> 20);
        nSubsidyHalvingInterval = 100000;

        // Build the genesis block. Note that the output of the genesis coinbase cannot
        // be spent as it did not originally exist in the database.
  
        const char* pszTimestamp = "Scotcoin!";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 1 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1392946703;
        genesis.nBits    = 0x1e0fffff;
        genesis.nNonce   = 168193;
        
        //// debug print
        hashGenesisBlock = genesis.GetHash();
        //while (hashGenesisBlock > bnProofOfWorkLimit.getuint256()){
        //    if (++genesis.nNonce==0) break;
        //    hashGenesisBlock = genesis.GetHash();
        //}

        printf("%s\n", hashGenesisBlock.ToString().c_str());
        printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("%x\n", bnProofOfWorkLimit.GetCompact());
        genesis.print();
        
        
        assert(hashGenesisBlock == uint256("0x0000020b9d4db902554e1131eee9d0a016e201215b2fd6e7279e4321f99a3e15"));
        assert(genesis.hashMerkleRoot == uint256("0xa887ab6f2204b79e5af2878efc78e5da804013f94f4e23cb73239b6abbf95ce4"));

        vSeeds.push_back(CDNSSeedData("someaddress.com or IP addy", "someaddress.com"));


        base58Prefixes[PUBKEY_ADDRESS] = 63;
        base58Prefixes[SCRIPT_ADDRESS] = 30;
        base58Prefixes[SECRET_KEY] = 224;

        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
Exemplo n.º 6
0
bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::vector<unsigned char> >& vSolutionsRet)
{
    // Templates
    static std::multimap<txnouttype, CScript> mTemplates;
    if (mTemplates.empty())
    {
        // Standard tx, sender provides pubkey, receiver adds signature
        mTemplates.insert(std::make_pair(TX_PUBKEY, CScript() << OP_PUBKEY << OP_CHECKSIG));

        // Bitcoin address tx, sender provides hash of pubkey, receiver provides signature and pubkey
        mTemplates.insert(std::make_pair(TX_PUBKEYHASH, CScript() << OP_DUP << OP_HASH160 << OP_PUBKEYHASH << OP_EQUALVERIFY << OP_CHECKSIG));

        // Sender provides N pubkeys, receivers provides M signatures
        mTemplates.insert(std::make_pair(TX_MULTISIG, CScript() << OP_SMALLINTEGER << OP_PUBKEYS << OP_SMALLINTEGER << OP_CHECKMULTISIG));
    }

    vSolutionsRet.clear();

    // If we have a name script, strip the prefix
    const CNameScript nameOp(scriptPubKey);
    const CScript& script1 = nameOp.getAddress();

    // Shortcut for pay-to-script-hash, which are more constrained than the other types:
    // it is always OP_HASH160 20 [20 byte hash] OP_EQUAL
    if (script1.IsPayToScriptHash(false))
    {
        typeRet = TX_SCRIPTHASH;
        std::vector<unsigned char> hashBytes(script1.begin()+2, script1.begin()+22);
        vSolutionsRet.push_back(hashBytes);
        return true;
    }

    int witnessversion;
    std::vector<unsigned char> witnessprogram;
    if (scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) {
        if (witnessversion == 0 && witnessprogram.size() == 20) {
            typeRet = TX_WITNESS_V0_KEYHASH;
            vSolutionsRet.push_back(witnessprogram);
            return true;
        }
        if (witnessversion == 0 && witnessprogram.size() == 32) {
            typeRet = TX_WITNESS_V0_SCRIPTHASH;
            vSolutionsRet.push_back(witnessprogram);
            return true;
        }
        if (witnessversion != 0) {
            typeRet = TX_WITNESS_UNKNOWN;
            vSolutionsRet.push_back(std::vector<unsigned char>{(unsigned char)witnessversion});
            vSolutionsRet.push_back(std::move(witnessprogram));
            return true;
        }
        return false;
    }

    // Provably prunable, data-carrying output
    //
    // So long as script passes the IsUnspendable() test and all but the first
    // byte passes the IsPushOnly() test we don't care what exactly is in the
    // script.
    if (scriptPubKey.size() >= 1 && scriptPubKey[0] == OP_RETURN && scriptPubKey.IsPushOnly(scriptPubKey.begin()+1)) {
        typeRet = TX_NULL_DATA;
        return true;
    }

    // Scan templates
    for (const std::pair<txnouttype, CScript>& tplate : mTemplates)
    {
        const CScript& script2 = tplate.second;
        vSolutionsRet.clear();

        opcodetype opcode1, opcode2;
        std::vector<unsigned char> vch1, vch2;

        // Compare
        CScript::const_iterator pc1 = script1.begin();
        CScript::const_iterator pc2 = script2.begin();
        while (true)
        {
            if (pc1 == script1.end() && pc2 == script2.end())
            {
                // Found a match
                typeRet = tplate.first;
                if (typeRet == TX_MULTISIG)
                {
                    // Additional checks for TX_MULTISIG:
                    unsigned char m = vSolutionsRet.front()[0];
                    unsigned char n = vSolutionsRet.back()[0];
                    if (m < 1 || n < 1 || m > n || vSolutionsRet.size()-2 != n)
                        return false;
                }
                return true;
            }
            if (!script1.GetOp(pc1, opcode1, vch1))
                break;
            if (!script2.GetOp(pc2, opcode2, vch2))
                break;

            // Template matching opcodes:
            if (opcode2 == OP_PUBKEYS)
            {
                while (vch1.size() >= 33 && vch1.size() <= 65)
                {
                    vSolutionsRet.push_back(vch1);
                    if (!script1.GetOp(pc1, opcode1, vch1))
                        break;
                }
                if (!script2.GetOp(pc2, opcode2, vch2))
                    break;
                // Normal situation is to fall through
                // to other if/else statements
            }

            if (opcode2 == OP_PUBKEY)
            {
                if (vch1.size() < 33 || vch1.size() > 65)
                    break;
                vSolutionsRet.push_back(vch1);
            }
            else if (opcode2 == OP_PUBKEYHASH)
            {
                if (vch1.size() != sizeof(uint160))
                    break;
                vSolutionsRet.push_back(vch1);
            }
            else if (opcode2 == OP_SMALLINTEGER)
            {   // Single-byte small integer pushed onto vSolutions
                if (opcode1 == OP_0 ||
                    (opcode1 >= OP_1 && opcode1 <= OP_16))
                {
                    char n = (char)CScript::DecodeOP_N(opcode1);
                    vSolutionsRet.push_back(valtype(1, n));
                }
                else
                    break;
            }
            else if (opcode1 != opcode2 || vch1 != vch2)
            {
                // Others must match exactly
                break;
            }
        }
    }

    vSolutionsRet.clear();
    typeRet = TX_NONSTANDARD;
    return false;
}
Exemplo n.º 7
0
BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup)
{
    // Test that passing CheckInputs with one set of script flags doesn't imply
    // that we would pass again with a different set of flags.
    {
        LOCK(cs_main);
        InitScriptExecutionCache();
    }

    CScript p2pk_scriptPubKey = CScript() << ToByteVector(coinbaseKey.GetPubKey()) << OP_CHECKSIG;
    CScript p2sh_scriptPubKey = GetScriptForDestination(CScriptID(p2pk_scriptPubKey));
    CScript p2pkh_scriptPubKey = GetScriptForDestination(coinbaseKey.GetPubKey().GetID());
    CScript p2wpkh_scriptPubKey = GetScriptForWitness(p2pkh_scriptPubKey);

    CBasicKeyStore keystore;
    keystore.AddKey(coinbaseKey);
    keystore.AddCScript(p2pk_scriptPubKey);

    // flags to test: SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, SCRIPT_VERIFY_CHECKSEQUENCE_VERIFY, SCRIPT_VERIFY_NULLDUMMY, uncompressed pubkey thing

    // Create 2 outputs that match the three scripts above, spending the first
    // coinbase tx.
    CMutableTransaction spend_tx;

    spend_tx.nVersion = 1;
    spend_tx.vin.resize(1);
    spend_tx.vin[0].prevout.hash = m_coinbase_txns[0]->GetHash();
    spend_tx.vin[0].prevout.n = 0;
    spend_tx.vout.resize(4);
    spend_tx.vout[0].nValue = 11*CENT;
    spend_tx.vout[0].scriptPubKey = p2sh_scriptPubKey;
    spend_tx.vout[1].nValue = 11*CENT;
    spend_tx.vout[1].scriptPubKey = p2wpkh_scriptPubKey;
    spend_tx.vout[2].nValue = 11*CENT;
    spend_tx.vout[2].scriptPubKey = CScript() << OP_CHECKLOCKTIMEVERIFY << OP_DROP << ToByteVector(coinbaseKey.GetPubKey()) << OP_CHECKSIG;
    spend_tx.vout[3].nValue = 11*CENT;
    spend_tx.vout[3].scriptPubKey = CScript() << OP_CHECKSEQUENCEVERIFY << OP_DROP << ToByteVector(coinbaseKey.GetPubKey()) << OP_CHECKSIG;

    // Sign, with a non-DER signature
    {
        std::vector<unsigned char> vchSig;
        uint256 hash = SignatureHash(p2pk_scriptPubKey, spend_tx, 0, SIGHASH_ALL, 0, SigVersion::BASE);
        BOOST_CHECK(coinbaseKey.Sign(hash, vchSig));
        vchSig.push_back((unsigned char) 0); // padding byte makes this non-DER
        vchSig.push_back((unsigned char)SIGHASH_ALL);
        spend_tx.vin[0].scriptSig << vchSig;
    }

    // Test that invalidity under a set of flags doesn't preclude validity
    // under other (eg consensus) flags.
    // spend_tx is invalid according to DERSIG
    {
        LOCK(cs_main);

        CValidationState state;
        PrecomputedTransactionData ptd_spend_tx(spend_tx);

        BOOST_CHECK(!CheckInputs(spend_tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, nullptr));

        // If we call again asking for scriptchecks (as happens in
        // ConnectBlock), we should add a script check object for this -- we're
        // not caching invalidity (if that changes, delete this test case).
        std::vector<CScriptCheck> scriptchecks;
        BOOST_CHECK(CheckInputs(spend_tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, &scriptchecks));
        BOOST_CHECK_EQUAL(scriptchecks.size(), 1U);

        // Test that CheckInputs returns true iff DERSIG-enforcing flags are
        // not present.  Don't add these checks to the cache, so that we can
        // test later that block validation works fine in the absence of cached
        // successes.
        ValidateCheckInputsForAllFlags(spend_tx, SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S | SCRIPT_VERIFY_STRICTENC, false);
    }

    // And if we produce a block with this tx, it should be valid (DERSIG not
    // enabled yet), even though there's no cache entry.
    CBlock block;

    block = CreateAndProcessBlock({spend_tx}, p2pk_scriptPubKey);
    BOOST_CHECK(chainActive.Tip()->GetBlockHash() == block.GetHash());
    BOOST_CHECK(pcoinsTip->GetBestBlock() == block.GetHash());

    LOCK(cs_main);

    // Test P2SH: construct a transaction that is valid without P2SH, and
    // then test validity with P2SH.
    {
        CMutableTransaction invalid_under_p2sh_tx;
        invalid_under_p2sh_tx.nVersion = 1;
        invalid_under_p2sh_tx.vin.resize(1);
        invalid_under_p2sh_tx.vin[0].prevout.hash = spend_tx.GetHash();
        invalid_under_p2sh_tx.vin[0].prevout.n = 0;
        invalid_under_p2sh_tx.vout.resize(1);
        invalid_under_p2sh_tx.vout[0].nValue = 11*CENT;
        invalid_under_p2sh_tx.vout[0].scriptPubKey = p2pk_scriptPubKey;
        std::vector<unsigned char> vchSig2(p2pk_scriptPubKey.begin(), p2pk_scriptPubKey.end());
        invalid_under_p2sh_tx.vin[0].scriptSig << vchSig2;

        ValidateCheckInputsForAllFlags(invalid_under_p2sh_tx, SCRIPT_VERIFY_P2SH, true);
    }

    // Test CHECKLOCKTIMEVERIFY
    {
        CMutableTransaction invalid_with_cltv_tx;
        invalid_with_cltv_tx.nVersion = 1;
        invalid_with_cltv_tx.nLockTime = 100;
        invalid_with_cltv_tx.vin.resize(1);
        invalid_with_cltv_tx.vin[0].prevout.hash = spend_tx.GetHash();
        invalid_with_cltv_tx.vin[0].prevout.n = 2;
        invalid_with_cltv_tx.vin[0].nSequence = 0;
        invalid_with_cltv_tx.vout.resize(1);
        invalid_with_cltv_tx.vout[0].nValue = 11*CENT;
        invalid_with_cltv_tx.vout[0].scriptPubKey = p2pk_scriptPubKey;

        // Sign
        std::vector<unsigned char> vchSig;
        uint256 hash = SignatureHash(spend_tx.vout[2].scriptPubKey, invalid_with_cltv_tx, 0, SIGHASH_ALL, 0, SigVersion::BASE);
        BOOST_CHECK(coinbaseKey.Sign(hash, vchSig));
        vchSig.push_back((unsigned char)SIGHASH_ALL);
        invalid_with_cltv_tx.vin[0].scriptSig = CScript() << vchSig << 101;

        ValidateCheckInputsForAllFlags(invalid_with_cltv_tx, SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, true);

        // Make it valid, and check again
        invalid_with_cltv_tx.vin[0].scriptSig = CScript() << vchSig << 100;
        CValidationState state;
        PrecomputedTransactionData txdata(invalid_with_cltv_tx);
        BOOST_CHECK(CheckInputs(invalid_with_cltv_tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, true, true, txdata, nullptr));
    }

    // TEST CHECKSEQUENCEVERIFY
    {
        CMutableTransaction invalid_with_csv_tx;
        invalid_with_csv_tx.nVersion = 2;
        invalid_with_csv_tx.vin.resize(1);
        invalid_with_csv_tx.vin[0].prevout.hash = spend_tx.GetHash();
        invalid_with_csv_tx.vin[0].prevout.n = 3;
        invalid_with_csv_tx.vin[0].nSequence = 100;
        invalid_with_csv_tx.vout.resize(1);
        invalid_with_csv_tx.vout[0].nValue = 11*CENT;
        invalid_with_csv_tx.vout[0].scriptPubKey = p2pk_scriptPubKey;

        // Sign
        std::vector<unsigned char> vchSig;
        uint256 hash = SignatureHash(spend_tx.vout[3].scriptPubKey, invalid_with_csv_tx, 0, SIGHASH_ALL, 0, SigVersion::BASE);
        BOOST_CHECK(coinbaseKey.Sign(hash, vchSig));
        vchSig.push_back((unsigned char)SIGHASH_ALL);
        invalid_with_csv_tx.vin[0].scriptSig = CScript() << vchSig << 101;

        ValidateCheckInputsForAllFlags(invalid_with_csv_tx, SCRIPT_VERIFY_CHECKSEQUENCEVERIFY, true);

        // Make it valid, and check again
        invalid_with_csv_tx.vin[0].scriptSig = CScript() << vchSig << 100;
        CValidationState state;
        PrecomputedTransactionData txdata(invalid_with_csv_tx);
        BOOST_CHECK(CheckInputs(invalid_with_csv_tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_CHECKSEQUENCEVERIFY, true, true, txdata, nullptr));
    }

    // TODO: add tests for remaining script flags

    // Test that passing CheckInputs with a valid witness doesn't imply success
    // for the same tx with a different witness.
    {
        CMutableTransaction valid_with_witness_tx;
        valid_with_witness_tx.nVersion = 1;
        valid_with_witness_tx.vin.resize(1);
        valid_with_witness_tx.vin[0].prevout.hash = spend_tx.GetHash();
        valid_with_witness_tx.vin[0].prevout.n = 1;
        valid_with_witness_tx.vout.resize(1);
        valid_with_witness_tx.vout[0].nValue = 11*CENT;
        valid_with_witness_tx.vout[0].scriptPubKey = p2pk_scriptPubKey;

        // Sign
        SignatureData sigdata;
        ProduceSignature(keystore, MutableTransactionSignatureCreator(&valid_with_witness_tx, 0, 11*CENT, SIGHASH_ALL), spend_tx.vout[1].scriptPubKey, sigdata);
        UpdateTransaction(valid_with_witness_tx, 0, sigdata);

        // This should be valid under all script flags.
        ValidateCheckInputsForAllFlags(valid_with_witness_tx, 0, true);

        // Remove the witness, and check that it is now invalid.
        valid_with_witness_tx.vin[0].scriptWitness.SetNull();
        ValidateCheckInputsForAllFlags(valid_with_witness_tx, SCRIPT_VERIFY_WITNESS, true);
    }

    {
        // Test a transaction with multiple inputs.
        CMutableTransaction tx;

        tx.nVersion = 1;
        tx.vin.resize(2);
        tx.vin[0].prevout.hash = spend_tx.GetHash();
        tx.vin[0].prevout.n = 0;
        tx.vin[1].prevout.hash = spend_tx.GetHash();
        tx.vin[1].prevout.n = 1;
        tx.vout.resize(1);
        tx.vout[0].nValue = 22*CENT;
        tx.vout[0].scriptPubKey = p2pk_scriptPubKey;

        // Sign
        for (int i=0; i<2; ++i) {
            SignatureData sigdata;
            ProduceSignature(keystore, MutableTransactionSignatureCreator(&tx, i, 11*CENT, SIGHASH_ALL), spend_tx.vout[i].scriptPubKey, sigdata);
            UpdateTransaction(tx, i, sigdata);
        }

        // This should be valid under all script flags
        ValidateCheckInputsForAllFlags(tx, 0, true);

        // Check that if the second input is invalid, but the first input is
        // valid, the transaction is not cached.
        // Invalidate vin[1]
        tx.vin[1].scriptWitness.SetNull();

        CValidationState state;
        PrecomputedTransactionData txdata(tx);
        // This transaction is now invalid under segwit, because of the second input.
        BOOST_CHECK(!CheckInputs(tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, nullptr));

        std::vector<CScriptCheck> scriptchecks;
        // Make sure this transaction was not cached (ie because the first
        // input was valid)
        BOOST_CHECK(CheckInputs(tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, &scriptchecks));
        // Should get 2 script checks back -- caching is on a whole-transaction basis.
        BOOST_CHECK_EQUAL(scriptchecks.size(), 2U);
    }
}
Exemplo n.º 8
0
/**
 * Return public keys or hashes from scriptPubKey, for 'standard' transaction types.
 */
bool Solver(const CScript& scriptPubKeyIn, txnouttype& typeRet, std::vector<std::vector<unsigned char> >& vSolutionsRet)
{
    // Templates
    static std::multimap<txnouttype, CScript> mTemplates;
    if (mTemplates.empty())
    {
        // Standard tx, sender provides pubkey, receiver adds signature
        mTemplates.insert(std::make_pair(TX_PUBKEY, CScript() << OP_PUBKEY << OP_CHECKSIG));

        // Syscoin address tx, sender provides hash of pubkey, receiver provides signature and pubkey
        mTemplates.insert(std::make_pair(TX_PUBKEYHASH, CScript() << OP_DUP << OP_HASH160 << OP_PUBKEYHASH << OP_EQUALVERIFY << OP_CHECKSIG));

        // Sender provides N pubkeys, receivers provides M signatures
        mTemplates.insert(std::make_pair(TX_MULTISIG, CScript() << OP_SMALLINTEGER << OP_PUBKEYS << OP_SMALLINTEGER << OP_CHECKMULTISIG));
    }

	// SYSCOIN check to see if this is a syscoin service transaction, if so get the scriptPubKey by extracting service specific script information
	CScript scriptPubKey;
	CScript scriptPubKeyOut;
	if (RemoveSyscoinScript(scriptPubKeyIn, scriptPubKeyOut))
		scriptPubKey = scriptPubKeyOut;
	else
		scriptPubKey = scriptPubKeyIn;
    vSolutionsRet.clear();

    // Shortcut for pay-to-script-hash, which are more constrained than the other types:
    // it is always OP_HASH160 20 [20 byte hash] OP_EQUAL
    if (scriptPubKey.IsPayToScriptHash())
    {
        typeRet = TX_SCRIPTHASH;
        std::vector<unsigned char> hashBytes(scriptPubKey.begin()+2, scriptPubKey.begin()+22);
        vSolutionsRet.push_back(hashBytes);
        return true;
    }

    // Provably prunable, data-carrying output
    //
    // So long as script passes the IsUnspendable() test and all but the first
    // byte passes the IsPushOnly() test we don't care what exactly is in the
    // script.
    if (scriptPubKey.size() >= 1 && scriptPubKey[0] == OP_RETURN && scriptPubKey.IsPushOnly(scriptPubKey.begin()+1)) {
        typeRet = TX_NULL_DATA;
        return true;
    }

    // Scan templates
    const CScript& script1 = scriptPubKey;
    BOOST_FOREACH(const PAIRTYPE(txnouttype, CScript)& tplate, mTemplates)
    {
        const CScript& script2 = tplate.second;
        vSolutionsRet.clear();

        opcodetype opcode1, opcode2;
        std::vector<unsigned char> vch1, vch2;

        // Compare
        CScript::const_iterator pc1 = script1.begin();
        CScript::const_iterator pc2 = script2.begin();
        while (true)
        {
            if (pc1 == script1.end() && pc2 == script2.end())
            {
                // Found a match
                typeRet = tplate.first;
                if (typeRet == TX_MULTISIG)
                {
                    // Additional checks for TX_MULTISIG:
                    unsigned char m = vSolutionsRet.front()[0];
                    unsigned char n = vSolutionsRet.back()[0];
                    if (m < 1 || n < 1 || m > n || vSolutionsRet.size()-2 != n)
                        return false;
                }
                return true;
            }
            if (!script1.GetOp(pc1, opcode1, vch1))
                break;
            if (!script2.GetOp(pc2, opcode2, vch2))
                break;

            // Template matching opcodes:
            if (opcode2 == OP_PUBKEYS)
            {
                while (vch1.size() >= 33 && vch1.size() <= 65)
                {
                    vSolutionsRet.push_back(vch1);
                    if (!script1.GetOp(pc1, opcode1, vch1))
                        break;
                }
                if (!script2.GetOp(pc2, opcode2, vch2))
                    break;
                // Normal situation is to fall through
                // to other if/else statements
            }

            if (opcode2 == OP_PUBKEY)
            {
                if (vch1.size() < 33 || vch1.size() > 65)
                    break;
                vSolutionsRet.push_back(vch1);
            }
            else if (opcode2 == OP_PUBKEYHASH)
            {
                if (vch1.size() != sizeof(uint160))
                    break;
                vSolutionsRet.push_back(vch1);
            }
            else if (opcode2 == OP_SMALLINTEGER)
            {   // Single-byte small integer pushed onto vSolutions
                if (opcode1 == OP_0 ||
                    (opcode1 >= OP_1 && opcode1 <= OP_16))
                {
                    char n = (char)CScript::DecodeOP_N(opcode1);
                    vSolutionsRet.push_back(valtype(1, n));
                }
                else
                    break;
            }
            else if (opcode1 != opcode2 || vch1 != vch2)
            {
                // Others must match exactly
                break;
            }
        }
    }

    vSolutionsRet.clear();
    typeRet = TX_NONSTANDARD;
    return false;
}
Exemplo n.º 9
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
        pchMessageStart[0] = 0xaf;
        pchMessageStart[1] = 0x45;
        pchMessageStart[2] = 0x76;
        pchMessageStart[3] = 0xee;
        vAlertPubKey = ParseHex("04a82e43bebee0af77bb6d4f830c5b2095b7479a480e91bbbf3547fb261c5e6d1be2c27e3c57503f501480f5027371ec62b2be1b6f00fc746e4b3777259e7f6a78");
        nDefaultPort = 10888;
        nRPCPort = 10889;
        bnProofOfWorkLimit[ALGO_SHA256D] = CBigNum(~uint256(0) >> 20);
        bnProofOfWorkLimit[ALGO_SCRYPT]  = CBigNum(~uint256(0) >> 20);
        bnProofOfWorkLimit[ALGO_GROESTL] = CBigNum(~uint256(0) >> 20);
        bnProofOfWorkLimit[ALGO_SKEIN]   = CBigNum(~uint256(0) >> 20);
        bnProofOfWorkLimit[ALGO_QUBIT]   = CBigNum(~uint256(0) >> 20);
        nSubsidyHalvingInterval = 80640 * 12;

        // Build the genesis block. Note that the output of the genesis coinbase cannot
        // be spent as it did not originally exist in the database.
  
        const char* pszTimestamp = "2014-02-23 FT - G20 aims to add $2tn to global economy";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 1000 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("04e941763c7750969e751bee1ffbe96a651a0feb131db046546c219ea40bff40b95077dc9ba1c05af991588772d8daabbda57386c068fb9bc7477c5e28702d5eb9") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = BLOCK_VERSION_DEFAULT;
        genesis.nTime    = 1393164995;
        genesis.nBits    = 0x1e0fffff;
        genesis.nNonce   = 2092903596;
        
        //// debug print
        hashGenesisBlock = genesis.GetHash();
        //while (hashGenesisBlock > bnProofOfWorkLimit[ALGO_SHA256D].getuint256()){
        //    if (++genesis.nNonce==0) break;
        //    hashGenesisBlock = genesis.GetHash();
        //}

        //printf("MAIN: %s\n", hashGenesisBlock.ToString().c_str());
        //printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        //printf("%x\n", bnProofOfWorkLimit[ALGO_SHA256D].GetCompact());
        //genesis.print();
        
        assert(hashGenesisBlock == uint256("0x00000ffde4c020b5938441a0ea3d314bf619eff0b38f32f78f7583cffa1ea485"));
        assert(genesis.hashMerkleRoot == uint256("0x3f75db3c18e92f46c21530dc1222e1fddf4ccebbf88e289a6c9dc787fd6469da"));

        vSeeds.push_back(CDNSSeedData("seed1.myriadcoin.org", "seed1.myriadcoin.org"));
        vSeeds.push_back(CDNSSeedData("seed2.myriadcoin.org", "seed2.myriadcoin.org"));
        vSeeds.push_back(CDNSSeedData("seed3.myriadcoin.org", "seed3.myriadcoin.org"));
        vSeeds.push_back(CDNSSeedData("seed4.myriadcoin.org", "seed4.myriadcoin.org"));

        base58Prefixes[PUBKEY_ADDRESS] = 50;
        base58Prefixes[SCRIPT_ADDRESS] = 9;
        base58Prefixes[SECRET_KEY] = 178;

        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
Exemplo n.º 10
0
// Old script.cpp SignatureHash function
uint256 static SignatureHashOld(CScript scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType)
{
    static const uint256 one(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
    if (nIn >= txTo.vin.size())
    {
        printf("ERROR: SignatureHash(): nIn=%d out of range\n", nIn);
        return one;
    }
    CMutableTransaction txTmp(txTo);

    // In case concatenating two scripts ends up with two codeseparators,
    // or an extra one at the end, this prevents all those possible incompatibilities.
    scriptCode.FindAndDelete(CScript(OP_CODESEPARATOR));

    // Blank out other inputs' signatures
    for (unsigned int i = 0; i < txTmp.vin.size(); i++)
        txTmp.vin[i].scriptSig = CScript();
    txTmp.vin[nIn].scriptSig = scriptCode;

    // Blank out some of the outputs
    if ((nHashType & 0x1f) == SIGHASH_NONE)
    {
        // Wildcard payee
        txTmp.vout.clear();

        // Let the others update at will
        for (unsigned int i = 0; i < txTmp.vin.size(); i++)
            if (i != nIn)
                txTmp.vin[i].nSequence = 0;
    }
    else if ((nHashType & 0x1f) == SIGHASH_SINGLE)
    {
        // Only lock-in the txout payee at same index as txin
        unsigned int nOut = nIn;
        if (nOut >= txTmp.vout.size())
        {
            printf("ERROR: SignatureHash(): nOut=%d out of range\n", nOut);
            return one;
        }
        txTmp.vout.resize(nOut+1);
        for (unsigned int i = 0; i < nOut; i++)
            txTmp.vout[i].SetNull();

        // Let the others update at will
        for (unsigned int i = 0; i < txTmp.vin.size(); i++)
            if (i != nIn)
                txTmp.vin[i].nSequence = 0;
    }

    // Blank out other inputs completely, not recommended for open transactions
    if (nHashType & SIGHASH_ANYONECANPAY)
    {
        txTmp.vin[0] = txTmp.vin[nIn];
        txTmp.vin.resize(1);
    }

    // Serialize and hash
    CHashWriter ss(SER_GETHASH, SERIALIZE_TRANSACTION_NO_WITNESS);
    ss << txTmp << nHashType;
    return ss.GetHash();
}
Exemplo n.º 11
0
/**
 * Build the genesis block. Note that the output of its generation
 * transaction cannot be spent since it did not originally exist in the
 * database.
 *
 * CBlock(hash=00000ffd590b14, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=e0028e, nTime=1390095618, nBits=1e0ffff0, nNonce=28917698, vtx=1)
 *   CTransaction(hash=e0028e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
 *     CTxIn(COutPoint(000000, -1), coinbase 04ffff001d01044c5957697265642030392f4a616e2f3230313420546865204772616e64204578706572696d656e7420476f6573204c6976653a204f76657273746f636b2e636f6d204973204e6f7720416363657074696e6720426974636f696e73)
 *     CTxOut(nValue=50.00000000, scriptPubKey=0xA9037BAC7050C479B121CF)
 *   vMerkleTree: e0028e
 */
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
    const char* pszTimestamp = "The history of Bangkok dates at least back to the early 15th century";
    const CScript genesisOutputScript = CScript() << ParseHex("040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9") << OP_CHECKSIG;
    return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
Exemplo n.º 12
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
        pchMessageStart[0] = 0x1a;
        pchMessageStart[1] = 0x2b;
        pchMessageStart[2] = 0x3c;
        pchMessageStart[3] = 0x4e;
        vAlertPubKey = ParseHex("045337216002ca6a71d63edf062895417610a723d453e722bf4728996c58661cdac3d4dec5cecd449b9086e9602b35cc726a9e0163e1a4d40f521fbdaebb674658");
        nDefaultPort = 7921;
        nRPCPort = 7920;
        bnProofOfWorkLimit = CBigNum(~uint256(0) >> 20);
        nSubsidyHalvingInterval = 80640;

        // Build the genesis block. Note that the output of the genesis coinbase cannot
        // be spent as it did not originally exist in the database.
        
        //00000e1b77bd39ddb4b76f58a766ba0f40653977d3d9a20ded261a28b51074df
		//f592dac23841d61ab7b74c5f13e73e7db5e176fae4aa8b37048af74ce9d46005
		//1e0fffff
		//CBlock(hash=00000e1b77bd39ddb4b76f58a766ba0f40653977d3d9a20ded261a28b51074df, ver=1, hashPrevBlock=0000000000000000000000000000000000000000000000000000000000000000, hashMerkleRoot=f592dac23841d61ab7b74c5f13e73e7db5e176fae4aa8b37048af74ce9d46005, nTime=1388822738, nBits=1e0fffff, nNonce=238626, vtx=1)
  		//CTransaction(hash=f592dac238, ver=1, vin.size=1, vout.size=1, nLockTime=0)
    	//CTxIn(COutPoint(0000000000, 4294967295), coinbase 04ffff001d010408312d342d32303134)
    	//CTxOut(nValue=1000.00000000, scriptPubKey=04678afdb0fe5548271967f1a67130)
  		//vMerkleTree: f592dac23841d61ab7b74c5f13e73e7db5e176fae4aa8b37048af74ce9d46005 
  
  
  
        const char* pszTimestamp = "1-4-2014";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 1000 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1388874174;
        genesis.nBits    = 0x1e0fffff;
        genesis.nNonce   = 758274;
        
        //// debug print
        hashGenesisBlock = genesis.GetHash();
        //comment out
        //while (hashGenesisBlock > bnProofOfWorkLimit.getuint256()){
        //    if (++genesis.nNonce==0) break;
        //    hashGenesisBlock = genesis.GetHash();
        //}
		//comment out

        printf("%s\n", hashGenesisBlock.ToString().c_str());
        printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("%x\n", bnProofOfWorkLimit.GetCompact());
        genesis.print();
        
        
        assert(hashGenesisBlock == uint256("0x00000887c81496d79ff7d6467a25cc6a52d9ed457e787c8b9a6bca4e5441b012"));
        assert(genesis.hashMerkleRoot == uint256("0xf592dac23841d61ab7b74c5f13e73e7db5e176fae4aa8b37048af74ce9d46005"));

        //vSeeds.push_back(CDNSSeedData("192.168.1.112", "192.168.1.112"));
        //vSeeds.push_back(CDNSSeedData("", ""));
        //vSeeds.push_back(CDNSSeedData("", ""));
        //vSeeds.push_back(CDNSSeedData("", ""));
        //vSeeds.push_back(CDNSSeedData("", ""));
        //vSeeds.push_back(CDNSSeedData("", ""));
        //vSeeds.push_back(CDNSSeedData("", ""));
        //vSeeds.push_back(CDNSSeedData("", ""));
        //vSeeds.push_back(CDNSSeedData("", ""));

        base58Prefixes[PUBKEY_ADDRESS] = 50;
        base58Prefixes[SCRIPT_ADDRESS] = 9;
        base58Prefixes[SECRET_KEY] = 224;

        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
Exemplo n.º 13
0
WalletModel::SendCoinsReturn WalletModel::sendCoins(const QList<SendCoinsRecipient> &recipients, const CCoinControl *coinControl)
{
    qint64 total = 0;
    QSet<QString> setAddress;
    QString hex;

    if(recipients.empty())
    {
        return OK;
    }

    // Pre-check input data for validity
    foreach(const SendCoinsRecipient &rcp, recipients)
    {
        if(!validateAddress(rcp.address))
        {
            return InvalidAddress;
        }
        setAddress.insert(rcp.address);

        if(rcp.amount <= 0)
        {
            return InvalidAmount;
        }
        total += rcp.amount;
    }

    if(recipients.size() > setAddress.size())
    {
        return DuplicateAddress;
    }

    int64_t nBalance = 0;
    std::vector<COutput> vCoins;
    wallet->AvailableCoins(vCoins, true, coinControl);

    BOOST_FOREACH(const COutput& out, vCoins)
        nBalance += out.tx->vout[out.i].nValue;

    if(total > nBalance)
    {
        return AmountExceedsBalance;
    }

    if((total + nTransactionFee) > nBalance)
    {
        return SendCoinsReturn(AmountWithFeeExceedsBalance, nTransactionFee);
    }

    {
        LOCK2(cs_main, wallet->cs_wallet);

        // Sendmany
        std::vector<std::pair<CScript, int64_t> > vecSend;

        std::string sNarr;
        foreach(const SendCoinsRecipient &rcp, recipients)
        {
            CScript scriptPubKey;
            scriptPubKey.SetDestination(CBitcoinAddress(rcp.address.toStdString()).Get());
            vecSend.push_back(make_pair(scriptPubKey, rcp.amount));

            sNarr = rcp.reference.toStdString();
            if (sNarr.length() > 0)
            {
               if (sNarr.length() > 50)
               {
                   printf("Reference is too long.\n");
                   return ReferenceTooLong;
               };

               std::vector<uint8_t> vNarr(sNarr.c_str(), sNarr.c_str() + sNarr.length());

               CScript scriptN = CScript() << OP_RETURN << vNarr;

               vecSend.push_back(make_pair(scriptN, 0));
            }
        }

        CWalletTx wtx;
        if (sNarr.length() > 0) {
            wtx.mapValue["reference"] = sNarr;
        }
        CReserveKey keyChange(wallet);
        int64_t nFeeRequired = 0;
        bool fCreated = wallet->CreateTransaction(vecSend, wtx, keyChange, nFeeRequired, coinControl);

        if(!fCreated)
        {
            if((total + nFeeRequired) > nBalance) // FIXME: could cause collisions in the future
            {
                return SendCoinsReturn(AmountWithFeeExceedsBalance, nFeeRequired);
            }
            return TransactionCreationFailed;
        }
        if(!uiInterface.ThreadSafeAskFee(nFeeRequired, tr("Sending...").toStdString()))
        {
            return Aborted;
        }
        if(!wallet->CommitTransaction(wtx, keyChange))
        {
            return TransactionCommitFailed;
        }
        hex = QString::fromStdString(wtx.GetHash().GetHex());
    }
Exemplo n.º 14
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
            // The characters are rarely used upper ASCII, not valid as UTF-8, and produce
            // a large 4-byte int at any alignment.
            pchMessageStart[0] = 0xc7;
            pchMessageStart[1] = 0xa1;
            pchMessageStart[2] = 0xf6;
            pchMessageStart[3] = 0xc9; //chimark
            vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
            nDefaultPort = 58778;
            nRPCPort = 58777;
            bnProofOfWorkLimit = CBigNum(~uint256(0) >> 20);
            nSubsidyHalvingInterval = 770000;

            // Build the genesis block. Note that the output of the genesis coinbase cannot
            // be spent as it did not originally exist in the database.
            //

        const char* pszTimestamp = "Dec 2013 light speed X-day";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 1 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1389429187;
        genesis.nBits    = 0x1e0fffff; //chimark
        genesis.nNonce   = 1030111;
        hashGenesisBlock = genesis.GetHash();

        //// debug print
        //while (hashGenesisBlock > bnProofOfWorkLimit.getuint256()){
        //    if (++genesis.nNonce==0) break;
        //   hashGenesisBlock = genesis.GetHash();
        //}

        printf("%s\n", hashGenesisBlock.ToString().c_str());
        printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("%x\n", bnProofOfWorkLimit.GetCompact());
        genesis.print();
        
        
        assert(hashGenesisBlock == uint256("0x00000a8f9572e068cffbdb30c23f698e659e1e2e13e51cfcb8114fa5df38ffee"));
        assert(genesis.hashMerkleRoot == uint256("0x91c7edee50dd32d8544412f4cef06f8812723eefe8fec24fd3e66d92f83b1b9e"));

        vSeeds.push_back(CDNSSeedData("chicoin.sipa.be", "seed.chicoin.sipa.be"));
        vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me"));
        vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.chicoin.dashjr.org"));
        vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org"));

        base58Prefixes[PUBKEY_ADDRESS] = 27;
        base58Prefixes[SCRIPT_ADDRESS] = 29;
        base58Prefixes[SECRET_KEY] =     127;


        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
Exemplo n.º 15
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
        pchMessageStart[0] = 0x03;
        pchMessageStart[1] = 0xd5;
        pchMessageStart[2] = 0xb5;
        pchMessageStart[3] = 0x03;
        nDefaultPort = 65534;
        nRPCPort = 65535;
        bnProofOfWorkLimit = CBigNum(~uint256(0) >> 20);
        nSubsidyHalvingInterval = 100000;

        // Build the genesis block. Note that the output of the genesis coinbase cannot
        // be spent as it did not originally exist in the database.
  
        const char* pszTimestamp = "San Francisco plaza evacuated after suspicious package is found";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 1 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1375548986;
        genesis.nBits    = 0x1e0fffff;
        genesis.nNonce   = 1211565;
        
        //// debug print
        hashGenesisBlock = genesis.GetHash();
        //while (hashGenesisBlock > bnProofOfWorkLimit.getuint256()){
        //    if (++genesis.nNonce==0) break;
        //    hashGenesisBlock = genesis.GetHash();
        //}

        printf("%s\n", hashGenesisBlock.ToString().c_str());
        printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("%x\n", bnProofOfWorkLimit.GetCompact());
        genesis.print();
        
        
        assert(hashGenesisBlock == uint256("0x000004c2fc5fffb810dccc197d603690099a68305232e552d96ccbe8e2c52b75"));
        assert(genesis.hashMerkleRoot == uint256("0x36a192e90f70131a884fe541a1e8a5643a28ba4cb24cbb2924bd0ee483f7f484"));

        vSeeds.push_back(CDNSSeedData("andarazoroflove.org", "andarazoroflove.org"));
        vSeeds.push_back(CDNSSeedData("rockchain.info", "rockchain.info"));

        base58Prefixes[PUBKEY_ADDRESS] = 130;
        base58Prefixes[SCRIPT_ADDRESS] = 30;
        base58Prefixes[SECRET_KEY] = 224;

        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
Exemplo n.º 16
0
// Right now this is only testing eviction performance in an extremely small
// mempool. Code needs to be written to generate a much wider variety of
// unique transactions for a more meaningful performance measurement.
static void MempoolEviction(benchmark::State& state)
{
    CMutableTransaction tx1 = CMutableTransaction();
    tx1.vin.resize(1);
    tx1.vin[0].scriptSig = CScript() << OP_1;
    tx1.vout.resize(1);
    tx1.vout[0].scriptPubKey = CScript() << OP_1 << OP_EQUAL;
    tx1.vout[0].nValue = 10 * COIN;

    CMutableTransaction tx2 = CMutableTransaction();
    tx2.vin.resize(1);
    tx2.vin[0].scriptSig = CScript() << OP_2;
    tx2.vout.resize(1);
    tx2.vout[0].scriptPubKey = CScript() << OP_2 << OP_EQUAL;
    tx2.vout[0].nValue = 10 * COIN;

    CMutableTransaction tx3 = CMutableTransaction();
    tx3.vin.resize(1);
    tx3.vin[0].prevout = COutPoint(tx2.GetHash(), 0);
    tx3.vin[0].scriptSig = CScript() << OP_2;
    tx3.vout.resize(1);
    tx3.vout[0].scriptPubKey = CScript() << OP_3 << OP_EQUAL;
    tx3.vout[0].nValue = 10 * COIN;

    CMutableTransaction tx4 = CMutableTransaction();
    tx4.vin.resize(2);
    tx4.vin[0].prevout.SetNull();
    tx4.vin[0].scriptSig = CScript() << OP_4;
    tx4.vin[1].prevout.SetNull();
    tx4.vin[1].scriptSig = CScript() << OP_4;
    tx4.vout.resize(2);
    tx4.vout[0].scriptPubKey = CScript() << OP_4 << OP_EQUAL;
    tx4.vout[0].nValue = 10 * COIN;
    tx4.vout[1].scriptPubKey = CScript() << OP_4 << OP_EQUAL;
    tx4.vout[1].nValue = 10 * COIN;

    CMutableTransaction tx5 = CMutableTransaction();
    tx5.vin.resize(2);
    tx5.vin[0].prevout = COutPoint(tx4.GetHash(), 0);
    tx5.vin[0].scriptSig = CScript() << OP_4;
    tx5.vin[1].prevout.SetNull();
    tx5.vin[1].scriptSig = CScript() << OP_5;
    tx5.vout.resize(2);
    tx5.vout[0].scriptPubKey = CScript() << OP_5 << OP_EQUAL;
    tx5.vout[0].nValue = 10 * COIN;
    tx5.vout[1].scriptPubKey = CScript() << OP_5 << OP_EQUAL;
    tx5.vout[1].nValue = 10 * COIN;

    CMutableTransaction tx6 = CMutableTransaction();
    tx6.vin.resize(2);
    tx6.vin[0].prevout = COutPoint(tx4.GetHash(), 1);
    tx6.vin[0].scriptSig = CScript() << OP_4;
    tx6.vin[1].prevout.SetNull();
    tx6.vin[1].scriptSig = CScript() << OP_6;
    tx6.vout.resize(2);
    tx6.vout[0].scriptPubKey = CScript() << OP_6 << OP_EQUAL;
    tx6.vout[0].nValue = 10 * COIN;
    tx6.vout[1].scriptPubKey = CScript() << OP_6 << OP_EQUAL;
    tx6.vout[1].nValue = 10 * COIN;

    CMutableTransaction tx7 = CMutableTransaction();
    tx7.vin.resize(2);
    tx7.vin[0].prevout = COutPoint(tx5.GetHash(), 0);
    tx7.vin[0].scriptSig = CScript() << OP_5;
    tx7.vin[1].prevout = COutPoint(tx6.GetHash(), 0);
    tx7.vin[1].scriptSig = CScript() << OP_6;
    tx7.vout.resize(2);
    tx7.vout[0].scriptPubKey = CScript() << OP_7 << OP_EQUAL;
    tx7.vout[0].nValue = 10 * COIN;
    tx7.vout[1].scriptPubKey = CScript() << OP_7 << OP_EQUAL;
    tx7.vout[1].nValue = 10 * COIN;

    CTxMemPool pool(CFeeRate(1000));

    while (state.KeepRunning()) {
        AddTx(tx1, 10000LL, pool);
        AddTx(tx2, 5000LL, pool);
        AddTx(tx3, 20000LL, pool);
        AddTx(tx4, 7000LL, pool);
        AddTx(tx5, 1000LL, pool);
        AddTx(tx6, 1100LL, pool);
        AddTx(tx7, 9000LL, pool);
        pool.TrimToSize(pool.DynamicMemoryUsage() * 3 / 4);
        pool.TrimToSize(GetVirtualTransactionSize(tx1));
    }
}
Exemplo n.º 17
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
        pchMessageStart[0] = 0xa5;
        pchMessageStart[1] = 0xc0;
        pchMessageStart[2] = 0x79;
        pchMessageStart[3] = 0x55;
        vAlertPubKey = ParseHex("000000000007840aaf100de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
        nDefaultPort = 32333;
        nRPCPort = 32332;
        bnProofOfWorkLimit = CBigNum(~uint256(0) >> 32);
        nSubsidyHalvingInterval = 126000; // 1 year

        // Build the genesis block. Note that the output of the genesis coinbase cannot
        // be spent as it did not originally exist in the database.
  
        const char* pszTimestamp = "CNN 23/10/2013 Scientists find gold growing on trees in Australia";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 50 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1382532797;
        genesis.nBits    = 0x1d00ffff;
        genesis.nNonce   = 704106316;
        
        //// debug print
        hashGenesisBlock = genesis.GetHash();
        //while (hashGenesisBlock > bnProofOfWorkLimit.getuint256()){
        //    if (++genesis.nNonce==0) break;
        //    hashGenesisBlock = genesis.GetHash();
        //}

        printf("%s\n", hashGenesisBlock.ToString().c_str());
        printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("%x\n", bnProofOfWorkLimit.GetCompact());
        genesis.print();
        
        
        assert(hashGenesisBlock == uint256("0x000000008ef7da946aa3f4dd81b240c6bdedac0dc038cb04e7cf8e60f37d9281"));
        assert(genesis.hashMerkleRoot == uint256("0xd25dbe3a2852926fc2ec6591a95983bbcde80c449f30ced37fd657361073fa96"));

 
        vSeeds.push_back(CDNSSeedData("seed1.betacoin.org", "seed1.betacoin.org"));
        vSeeds.push_back(CDNSSeedData("seed2.betacoin.org", "seed2.betacoin.org"));
         vSeeds.push_back(CDNSSeedData("seed3.betacoin.org", "seed3.betacoin.org"));
          vSeeds.push_back(CDNSSeedData("seed4.betacoin.org", "seed4.betacoin.org"));
        vSeeds.push_back(CDNSSeedData("seed5.betacoin.org", "seed5.betacoin.org"));
         vSeeds.push_back(CDNSSeedData("seed6.betacoin.org", "seed6.betacoin.org"));

        base58Prefixes[PUBKEY_ADDRESS] = 25;
        base58Prefixes[SCRIPT_ADDRESS] = 11;
        base58Prefixes[SECRET_KEY] = 143;

        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
Exemplo n.º 18
0
std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& scriptPubKeyIn, bool fMineWitnessTx)
{
    int64_t nTimeStart = GetTimeMicros();

    resetBlock();

    pblocktemplate.reset(new CBlockTemplate());

    if(!pblocktemplate.get())
        return nullptr;
    pblock = &pblocktemplate->block; // pointer for convenience

    // Add dummy coinbase tx as first transaction
    pblock->vtx.emplace_back();
    pblocktemplate->vTxFees.push_back(-1); // updated at end
    pblocktemplate->vTxSigOpsCost.push_back(-1); // updated at end

    LOCK2(cs_main, mempool.cs);
    CBlockIndex* pindexPrev = chainActive.Tip();
    assert(pindexPrev != nullptr);
    nHeight = pindexPrev->nHeight + 1;

    pblock->nVersion = ComputeBlockVersion(pindexPrev, chainparams.GetConsensus());
    // -regtest only: allow overriding block.nVersion with
    // -blockversion=N to test forking scenarios
    if (chainparams.MineBlocksOnDemand())
        pblock->nVersion = gArgs.GetArg("-blockversion", pblock->nVersion);

    pblock->nTime = GetAdjustedTime();
    const int64_t nMedianTimePast = pindexPrev->GetMedianTimePast();

    nLockTimeCutoff = (STANDARD_LOCKTIME_VERIFY_FLAGS & LOCKTIME_MEDIAN_TIME_PAST)
                       ? nMedianTimePast
                       : pblock->GetBlockTime();

    // Decide whether to include witness transactions
    // This is only needed in case the witness softfork activation is reverted
    // (which would require a very deep reorganization) or when
    // -promiscuousmempoolflags is used.
    // TODO: replace this with a call to main to assess validity of a mempool
    // transaction (which in most cases can be a no-op).
    fIncludeWitness = IsWitnessEnabled(pindexPrev, chainparams.GetConsensus()) && fMineWitnessTx;

    int nPackagesSelected = 0;
    int nDescendantsUpdated = 0;
    addPackageTxs(nPackagesSelected, nDescendantsUpdated);

    int64_t nTime1 = GetTimeMicros();

    nLastBlockTx = nBlockTx;
    nLastBlockWeight = nBlockWeight;

    // Create coinbase transaction.
    CMutableTransaction coinbaseTx;
    coinbaseTx.vin.resize(1);
    coinbaseTx.vin[0].prevout.SetNull();
    coinbaseTx.vout.resize(1);
    coinbaseTx.vout[0].scriptPubKey = scriptPubKeyIn;
    coinbaseTx.vout[0].nValue = nFees + GetBlockSubsidy(nHeight, chainparams.GetConsensus());
    coinbaseTx.vin[0].scriptSig = CScript() << nHeight << OP_0;
    pblock->vtx[0] = MakeTransactionRef(std::move(coinbaseTx));
    pblocktemplate->vchCoinbaseCommitment = GenerateCoinbaseCommitment(*pblock, pindexPrev, chainparams.GetConsensus());
    pblocktemplate->vTxFees[0] = -nFees;

    LogPrintf("CreateNewBlock(): block weight: %u txs: %u fees: %ld sigops %d\n", GetBlockWeight(*pblock), nBlockTx, nFees, nBlockSigOpsCost);

    // Fill in header
    pblock->hashPrevBlock  = pindexPrev->GetBlockHash();
    UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev);
    pblock->nBits          = GetNextWorkRequired(pindexPrev, pblock, chainparams.GetConsensus());
    pblock->nNonce         = 0;
    pblocktemplate->vTxSigOpsCost[0] = WITNESS_SCALE_FACTOR * GetLegacySigOpCount(*pblock->vtx[0]);

    CValidationState state;
    if (!TestBlockValidity(state, chainparams, *pblock, pindexPrev, false, false)) {
        throw std::runtime_error(strprintf("%s: TestBlockValidity failed: %s", __func__, FormatStateMessage(state)));
    }
    int64_t nTime2 = GetTimeMicros();

    LogPrint(BCLog::BENCH, "CreateNewBlock() packages: %.2fms (%d packages, %d updated descendants), validity: %.2fms (total %.2fms)\n", 0.001 * (nTime1 - nTimeStart), nPackagesSelected, nDescendantsUpdated, 0.001 * (nTime2 - nTime1), 0.001 * (nTime2 - nTimeStart));

    return std::move(pblocktemplate);
}
Exemplo n.º 19
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
        pchMessageStart[0] = 0xf7;
        pchMessageStart[1] = 0x26;
        pchMessageStart[2] = 0xa1;
        pchMessageStart[3] = 0xbf;
        vAlertPubKey = ParseHex("04e41db2a8b8dc3981f819d46060875ce483bf303613b108e673d7bb636f7786bd0458e2ced6e8b337be32d024562f3e69776412b55a7210396ad7a9944812b445");
        nDefaultPort = 48481;
        nRPCPort = 48480;
        bnProofOfWorkLimit = CBigNum(~uint256(0) >> 20);
        nSubsidyHalvingInterval = 262800;

        // Build the genesis block. Note that the output of the genesis coinbase cannot
        // be spent as it did not originally exist in the database.
  
        const char* pszTimestamp = "Tone Abbet Does it again";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = COIN / 10000;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1403852000;
        genesis.nBits    = 0x1e0fffff;
        genesis.nNonce   = 1376737;
        
        //// debug print
        hashGenesisBlock = genesis.GetHash();
        while (hashGenesisBlock > bnProofOfWorkLimit.getuint256()){
            if (++genesis.nNonce==0) break;
            hashGenesisBlock = genesis.GetHash();
        }

        printf("%s\n", hashGenesisBlock.ToString().c_str());
        printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("%x\n", bnProofOfWorkLimit.GetCompact());
        genesis.print();

        /*if (false && (genesis.GetHash() != hashGenesisBlock)) {

        // This will figure out a valid hash and Nonce if you're
        // creating a different genesis block:
            uint256 hashTarget = CBigNum().SetCompact(genesis.nBits).getuint256();
            while (genesis.GetHash() > hashTarget)
               {
                   ++genesis.nNonce;
                   if (genesis.nNonce == 0)
                   {
                       printf("NONCE WRAPPED, incrementing time");
                       ++genesis.nTime;
                   }
               }
        }

        //// debug print
        genesis.print();
        printf("genesis.GetHash() == %s\n", genesis.GetHash().ToString().c_str());
        printf("genesis.hashMerkleRoot == %s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("genesis.nTime = %u \n", genesis.nTime);
        printf("genesis.nNonce = %u \n", genesis.nNonce);
              */
        assert(hashGenesisBlock == uint256("0x00000dffc654ad0a8d9055536135b69d71dcd878d901508fc9381bde67bf0645"));
        assert(genesis.hashMerkleRoot == uint256("0x94076775c950c86d89bc2225c87bcb4e29621b57d5e9b430d7fa190078b0e980"));

        vSeeds.push_back(CDNSSeedData("162.248.4.167", "162.248.4.167"));
        vSeeds.push_back(CDNSSeedData("seed2.whirlcoin.org", "seed2.whirlcoin.org"));
        vSeeds.push_back(CDNSSeedData("seed3.whirlcoin.org", "seed3.whirlcoin.org"));
        vSeeds.push_back(CDNSSeedData("whirlcoin.zapto.org", "whirlcoin.zapto.org"));
        vSeeds.push_back(CDNSSeedData("whirlcoin.no-ip.org", "whirlcoin.no-ip.org"));
        vSeeds.push_back(CDNSSeedData("whirlcoin.strangled.net", "whirlcoin.strangled.net"));
        vSeeds.push_back(CDNSSeedData("whirlcoin.ignorelist.com", "whirlcoin.ignorelist.com"));

        base58Prefixes[PUBKEY_ADDRESS] = 73;
        base58Prefixes[SCRIPT_ADDRESS] = 12;
        base58Prefixes[SECRET_KEY] = 226;

        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
BOOST_FIXTURE_TEST_CASE(tx_mempool_block_doublespend, TestChain100Setup)
{
    // Make sure skipping validation of transactions that were
    // validated going into the memory pool does not allow
    // double-spends in blocks to pass validation when they should not.

    CScript scriptPubKey = CScript() <<  ToByteVector(coinbaseKey.GetPubKey()) << OP_CHECKSIG;

    // Create a double-spend of mature coinbase txn:
    std::vector<CMutableTransaction> spends;
    spends.resize(2);
    for (int i = 0; i < 2; i++)
    {
        spends[i].nVersion = 1;
        spends[i].vin.resize(1);
        spends[i].vin[0].prevout.hash = m_coinbase_txns[0]->GetHash();
        spends[i].vin[0].prevout.n = 0;
        spends[i].vout.resize(1);
        spends[i].vout[0].nValue = 11*CENT;
        spends[i].vout[0].scriptPubKey = scriptPubKey;

        // Sign:
        std::vector<unsigned char> vchSig;
        uint256 hash = SignatureHash(scriptPubKey, spends[i], 0, SIGHASH_ALL, 0, SigVersion::BASE);
        BOOST_CHECK(coinbaseKey.Sign(hash, vchSig));
        vchSig.push_back((unsigned char)SIGHASH_ALL);
        spends[i].vin[0].scriptSig << vchSig;
    }

    CBlock block;

    // Test 1: block with both of those transactions should be rejected.
    block = CreateAndProcessBlock(spends, scriptPubKey);
    {
        LOCK(cs_main);
        BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() != block.GetHash());
    }

    // Test 2: ... and should be rejected if spend1 is in the memory pool
    BOOST_CHECK(ToMemPool(spends[0]));
    block = CreateAndProcessBlock(spends, scriptPubKey);
    {
        LOCK(cs_main);
        BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() != block.GetHash());
    }
    mempool.clear();

    // Test 3: ... and should be rejected if spend2 is in the memory pool
    BOOST_CHECK(ToMemPool(spends[1]));
    block = CreateAndProcessBlock(spends, scriptPubKey);
    {
        LOCK(cs_main);
        BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() != block.GetHash());
    }
    mempool.clear();

    // Final sanity test: first spend in mempool, second in block, that's OK:
    std::vector<CMutableTransaction> oneSpend;
    oneSpend.push_back(spends[0]);
    BOOST_CHECK(ToMemPool(spends[1]));
    block = CreateAndProcessBlock(oneSpend, scriptPubKey);
    {
        LOCK(cs_main);
        BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() == block.GetHash());
    }
    // spends[1] should have been removed from the mempool when the
    // block with spends[0] is accepted:
    BOOST_CHECK_EQUAL(mempool.size(), 0U);
}
Exemplo n.º 21
0
CScript GetScriptForRawPubKey(const CPubKey& pubKey)
{
    return CScript() << std::vector<unsigned char>(pubKey.begin(), pubKey.end()) << OP_CHECKSIG;
}
Exemplo n.º 22
0
static UniValue getblocktemplate(const JSONRPCRequest& request)
{
    if (request.fHelp || request.params.size() > 1)
        throw std::runtime_error(
            "getblocktemplate ( TemplateRequest )\n"
            "\nIf the request parameters include a 'mode' key, that is used to explicitly select between the default 'template' request or a 'proposal'.\n"
            "It returns data needed to construct a block to work on.\n"
            "For full specification, see BIPs 22, 23, 9, and 145:\n"
            "    https://github.com/bitcoin/bips/blob/master/bip-0022.mediawiki\n"
            "    https://github.com/bitcoin/bips/blob/master/bip-0023.mediawiki\n"
            "    https://github.com/bitcoin/bips/blob/master/bip-0009.mediawiki#getblocktemplate_changes\n"
            "    https://github.com/bitcoin/bips/blob/master/bip-0145.mediawiki\n"

            "\nArguments:\n"
            "1. template_request         (json object, optional) A json object in the following spec\n"
            "     {\n"
            "       \"mode\":\"template\"    (string, optional) This must be set to \"template\", \"proposal\" (see BIP 23), or omitted\n"
            "       \"capabilities\":[     (array, optional) A list of strings\n"
            "           \"support\"          (string) client side supported feature, 'longpoll', 'coinbasetxn', 'coinbasevalue', 'proposal', 'serverlist', 'workid'\n"
            "           ,...\n"
            "       ],\n"
            "       \"rules\":[            (array, optional) A list of strings\n"
            "           \"support\"          (string) client side supported softfork deployment\n"
            "           ,...\n"
            "       ]\n"
            "     }\n"
            "\n"

            "\nResult:\n"
            "{\n"
            "  \"version\" : n,                    (numeric) The preferred block version\n"
            "  \"rules\" : [ \"rulename\", ... ],    (array of strings) specific block rules that are to be enforced\n"
            "  \"vbavailable\" : {                 (json object) set of pending, supported versionbit (BIP 9) softfork deployments\n"
            "      \"rulename\" : bitnumber          (numeric) identifies the bit number as indicating acceptance and readiness for the named softfork rule\n"
            "      ,...\n"
            "  },\n"
            "  \"vbrequired\" : n,                 (numeric) bit mask of versionbits the server requires set in submissions\n"
            "  \"previousblockhash\" : \"xxxx\",     (string) The hash of current highest block\n"
            "  \"transactions\" : [                (array) contents of non-coinbase transactions that should be included in the next block\n"
            "      {\n"
            "         \"data\" : \"xxxx\",             (string) transaction data encoded in hexadecimal (byte-for-byte)\n"
            "         \"txid\" : \"xxxx\",             (string) transaction id encoded in little-endian hexadecimal\n"
            "         \"hash\" : \"xxxx\",             (string) hash encoded in little-endian hexadecimal (including witness data)\n"
            "         \"depends\" : [                (array) array of numbers \n"
            "             n                          (numeric) transactions before this one (by 1-based index in 'transactions' list) that must be present in the final block if this one is\n"
            "             ,...\n"
            "         ],\n"
            "         \"fee\": n,                    (numeric) difference in value between transaction inputs and outputs (in satoshis); for coinbase transactions, this is a negative Number of the total collected block fees (ie, not including the block subsidy); if key is not present, fee is unknown and clients MUST NOT assume there isn't one\n"
            "         \"sigops\" : n,                (numeric) total SigOps cost, as counted for purposes of block limits; if key is not present, sigop cost is unknown and clients MUST NOT assume it is zero\n"
            "         \"weight\" : n,                (numeric) total transaction weight, as counted for purposes of block limits\n"
            "      }\n"
            "      ,...\n"
            "  ],\n"
            "  \"coinbaseaux\" : {                 (json object) data that should be included in the coinbase's scriptSig content\n"
            "      \"flags\" : \"xx\"                  (string) key name is to be ignored, and value included in scriptSig\n"
            "  },\n"
            "  \"coinbasevalue\" : n,              (numeric) maximum allowable input to coinbase transaction, including the generation award and transaction fees (in satoshis)\n"
            "  \"coinbasetxn\" : { ... },          (json object) information for coinbase transaction\n"
            "  \"target\" : \"xxxx\",                (string) The hash target\n"
            "  \"mintime\" : xxx,                  (numeric) The minimum timestamp appropriate for next block time in seconds since epoch (Jan 1 1970 GMT)\n"
            "  \"mutable\" : [                     (array of string) list of ways the block template may be changed \n"
            "     \"value\"                          (string) A way the block template may be changed, e.g. 'time', 'transactions', 'prevblock'\n"
            "     ,...\n"
            "  ],\n"
            "  \"noncerange\" : \"00000000ffffffff\",(string) A range of valid nonces\n"
            "  \"sigoplimit\" : n,                 (numeric) limit of sigops in blocks\n"
            "  \"sizelimit\" : n,                  (numeric) limit of block size\n"
            "  \"weightlimit\" : n,                (numeric) limit of block weight\n"
            "  \"curtime\" : ttt,                  (numeric) current timestamp in seconds since epoch (Jan 1 1970 GMT)\n"
            "  \"bits\" : \"xxxxxxxx\",              (string) compressed target of next block\n"
            "  \"height\" : n                      (numeric) The height of the next block\n"
            "}\n"

            "\nExamples:\n"
            + HelpExampleCli("getblocktemplate", "{\"rules\": [\"segwit\"]}")
            + HelpExampleRpc("getblocktemplate", "{\"rules\": [\"segwit\"]}")
         );

    LOCK(cs_main);

    std::string strMode = "template";
    UniValue lpval = NullUniValue;
    std::set<std::string> setClientRules;
    int64_t nMaxVersionPreVB = -1;
    if (!request.params[0].isNull())
    {
        const UniValue& oparam = request.params[0].get_obj();
        const UniValue& modeval = find_value(oparam, "mode");
        if (modeval.isStr())
            strMode = modeval.get_str();
        else if (modeval.isNull())
        {
            /* Do nothing */
        }
        else
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");
        lpval = find_value(oparam, "longpollid");

        if (strMode == "proposal")
        {
            const UniValue& dataval = find_value(oparam, "data");
            if (!dataval.isStr())
                throw JSONRPCError(RPC_TYPE_ERROR, "Missing data String key for proposal");

            CBlock block;
            if (!DecodeHexBlk(block, dataval.get_str()))
                throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block decode failed");

            uint256 hash = block.GetHash();
            const CBlockIndex* pindex = LookupBlockIndex(hash);
            if (pindex) {
                if (pindex->IsValid(BLOCK_VALID_SCRIPTS))
                    return "duplicate";
                if (pindex->nStatus & BLOCK_FAILED_MASK)
                    return "duplicate-invalid";
                return "duplicate-inconclusive";
            }

            CBlockIndex* const pindexPrev = chainActive.Tip();
            // TestBlockValidity only supports blocks built on the current Tip
            if (block.hashPrevBlock != pindexPrev->GetBlockHash())
                return "inconclusive-not-best-prevblk";
            CValidationState state;
            TestBlockValidity(state, Params(), block, pindexPrev, false, true);
            return BIP22ValidationResult(state);
        }

        const UniValue& aClientRules = find_value(oparam, "rules");
        if (aClientRules.isArray()) {
            for (unsigned int i = 0; i < aClientRules.size(); ++i) {
                const UniValue& v = aClientRules[i];
                setClientRules.insert(v.get_str());
            }
        } else {
            // NOTE: It is important that this NOT be read if versionbits is supported
            const UniValue& uvMaxVersion = find_value(oparam, "maxversion");
            if (uvMaxVersion.isNum()) {
                nMaxVersionPreVB = uvMaxVersion.get_int64();
            }
        }
    }

    if (strMode != "template")
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");

    if(!g_connman)
        throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");

    if (g_connman->GetNodeCount(CConnman::CONNECTIONS_ALL) == 0)
        throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Bitcoin is not connected!");

    if (IsInitialBlockDownload())
        throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "Bitcoin is downloading blocks...");

    static unsigned int nTransactionsUpdatedLast;

    if (!lpval.isNull())
    {
        // Wait to respond until either the best block changes, OR a minute has passed and there are more transactions
        uint256 hashWatchedChain;
        std::chrono::steady_clock::time_point checktxtime;
        unsigned int nTransactionsUpdatedLastLP;

        if (lpval.isStr())
        {
            // Format: <hashBestChain><nTransactionsUpdatedLast>
            std::string lpstr = lpval.get_str();

            hashWatchedChain = ParseHashV(lpstr.substr(0, 64), "longpollid");
            nTransactionsUpdatedLastLP = atoi64(lpstr.substr(64));
        }
        else
        {
            // NOTE: Spec does not specify behaviour for non-string longpollid, but this makes testing easier
            hashWatchedChain = chainActive.Tip()->GetBlockHash();
            nTransactionsUpdatedLastLP = nTransactionsUpdatedLast;
        }

        // Release the wallet and main lock while waiting
        LEAVE_CRITICAL_SECTION(cs_main);
        {
            checktxtime = std::chrono::steady_clock::now() + std::chrono::minutes(1);

            WAIT_LOCK(g_best_block_mutex, lock);
            while (g_best_block == hashWatchedChain && IsRPCRunning())
            {
                if (g_best_block_cv.wait_until(lock, checktxtime) == std::cv_status::timeout)
                {
                    // Timeout: Check transactions for update
                    if (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLastLP)
                        break;
                    checktxtime += std::chrono::seconds(10);
                }
            }
        }
        ENTER_CRITICAL_SECTION(cs_main);

        if (!IsRPCRunning())
            throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Shutting down");
        // TODO: Maybe recheck connections/IBD and (if something wrong) send an expires-immediately template to stop miners?
    }

    const struct VBDeploymentInfo& segwit_info = VersionBitsDeploymentInfo[Consensus::DEPLOYMENT_SEGWIT];
    // If the caller is indicating segwit support, then allow CreateNewBlock()
    // to select witness transactions, after segwit activates (otherwise
    // don't).
    bool fSupportsSegwit = setClientRules.find(segwit_info.name) != setClientRules.end();

    // Update block
    static CBlockIndex* pindexPrev;
    static int64_t nStart;
    static std::unique_ptr<CBlockTemplate> pblocktemplate;
    // Cache whether the last invocation was with segwit support, to avoid returning
    // a segwit-block to a non-segwit caller.
    static bool fLastTemplateSupportsSegwit = true;
    if (pindexPrev != chainActive.Tip() ||
        (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5) ||
        fLastTemplateSupportsSegwit != fSupportsSegwit)
    {
        // Clear pindexPrev so future calls make a new block, despite any failures from here on
        pindexPrev = nullptr;

        // Store the pindexBest used before CreateNewBlock, to avoid races
        nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
        CBlockIndex* pindexPrevNew = chainActive.Tip();
        nStart = GetTime();
        fLastTemplateSupportsSegwit = fSupportsSegwit;

        // Create new block
        CScript scriptDummy = CScript() << OP_TRUE;
        pblocktemplate = BlockAssembler(Params()).CreateNewBlock(scriptDummy, fSupportsSegwit);
        if (!pblocktemplate)
            throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory");

        // Need to update only after we know CreateNewBlock succeeded
        pindexPrev = pindexPrevNew;
    }
    assert(pindexPrev);
    CBlock* pblock = &pblocktemplate->block; // pointer for convenience
    const Consensus::Params& consensusParams = Params().GetConsensus();

    // Update nTime
    UpdateTime(pblock, consensusParams, pindexPrev);
    pblock->nNonce = 0;

    // NOTE: If at some point we support pre-segwit miners post-segwit-activation, this needs to take segwit support into consideration
    const bool fPreSegWit = (ThresholdState::ACTIVE != VersionBitsState(pindexPrev, consensusParams, Consensus::DEPLOYMENT_SEGWIT, versionbitscache));

    UniValue aCaps(UniValue::VARR); aCaps.push_back("proposal");

    UniValue transactions(UniValue::VARR);
    std::map<uint256, int64_t> setTxIndex;
    int i = 0;
    for (const auto& it : pblock->vtx) {
        const CTransaction& tx = *it;
        uint256 txHash = tx.GetHash();
        setTxIndex[txHash] = i++;

        if (tx.IsCoinBase())
            continue;

        UniValue entry(UniValue::VOBJ);

        entry.pushKV("data", EncodeHexTx(tx));
        entry.pushKV("txid", txHash.GetHex());
        entry.pushKV("hash", tx.GetWitnessHash().GetHex());

        UniValue deps(UniValue::VARR);
        for (const CTxIn &in : tx.vin)
        {
            if (setTxIndex.count(in.prevout.hash))
                deps.push_back(setTxIndex[in.prevout.hash]);
        }
        entry.pushKV("depends", deps);

        int index_in_template = i - 1;
        entry.pushKV("fee", pblocktemplate->vTxFees[index_in_template]);
        int64_t nTxSigOps = pblocktemplate->vTxSigOpsCost[index_in_template];
        if (fPreSegWit) {
            assert(nTxSigOps % WITNESS_SCALE_FACTOR == 0);
            nTxSigOps /= WITNESS_SCALE_FACTOR;
        }
        entry.pushKV("sigops", nTxSigOps);
        entry.pushKV("weight", GetTransactionWeight(tx));

        transactions.push_back(entry);
    }

    UniValue aux(UniValue::VOBJ);
    aux.pushKV("flags", HexStr(COINBASE_FLAGS.begin(), COINBASE_FLAGS.end()));

    arith_uint256 hashTarget = arith_uint256().SetCompact(pblock->nBits);

    UniValue aMutable(UniValue::VARR);
    aMutable.push_back("time");
    aMutable.push_back("transactions");
    aMutable.push_back("prevblock");

    UniValue result(UniValue::VOBJ);
    result.pushKV("capabilities", aCaps);

    UniValue aRules(UniValue::VARR);
    UniValue vbavailable(UniValue::VOBJ);
    for (int j = 0; j < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) {
        Consensus::DeploymentPos pos = Consensus::DeploymentPos(j);
        ThresholdState state = VersionBitsState(pindexPrev, consensusParams, pos, versionbitscache);
        switch (state) {
            case ThresholdState::DEFINED:
            case ThresholdState::FAILED:
                // Not exposed to GBT at all
                break;
            case ThresholdState::LOCKED_IN:
                // Ensure bit is set in block version
                pblock->nVersion |= VersionBitsMask(consensusParams, pos);
                // FALL THROUGH to get vbavailable set...
            case ThresholdState::STARTED:
            {
                const struct VBDeploymentInfo& vbinfo = VersionBitsDeploymentInfo[pos];
                vbavailable.pushKV(gbt_vb_name(pos), consensusParams.vDeployments[pos].bit);
                if (setClientRules.find(vbinfo.name) == setClientRules.end()) {
                    if (!vbinfo.gbt_force) {
                        // If the client doesn't support this, don't indicate it in the [default] version
                        pblock->nVersion &= ~VersionBitsMask(consensusParams, pos);
                    }
                }
                break;
            }
            case ThresholdState::ACTIVE:
            {
                // Add to rules only
                const struct VBDeploymentInfo& vbinfo = VersionBitsDeploymentInfo[pos];
                aRules.push_back(gbt_vb_name(pos));
                if (setClientRules.find(vbinfo.name) == setClientRules.end()) {
                    // Not supported by the client; make sure it's safe to proceed
                    if (!vbinfo.gbt_force) {
                        // If we do anything other than throw an exception here, be sure version/force isn't sent to old clients
                        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Support for '%s' rule requires explicit client support", vbinfo.name));
                    }
                }
                break;
            }
        }
    }
    result.pushKV("version", pblock->nVersion);
    result.pushKV("rules", aRules);
    result.pushKV("vbavailable", vbavailable);
    result.pushKV("vbrequired", int(0));

    if (nMaxVersionPreVB >= 2) {
        // If VB is supported by the client, nMaxVersionPreVB is -1, so we won't get here
        // Because BIP 34 changed how the generation transaction is serialized, we can only use version/force back to v2 blocks
        // This is safe to do [otherwise-]unconditionally only because we are throwing an exception above if a non-force deployment gets activated
        // Note that this can probably also be removed entirely after the first BIP9 non-force deployment (ie, probably segwit) gets activated
        aMutable.push_back("version/force");
    }

    result.pushKV("previousblockhash", pblock->hashPrevBlock.GetHex());
    result.pushKV("transactions", transactions);
    result.pushKV("coinbaseaux", aux);
    result.pushKV("coinbasevalue", (int64_t)pblock->vtx[0]->vout[0].nValue);
    result.pushKV("longpollid", chainActive.Tip()->GetBlockHash().GetHex() + i64tostr(nTransactionsUpdatedLast));
    result.pushKV("target", hashTarget.GetHex());
    result.pushKV("mintime", (int64_t)pindexPrev->GetMedianTimePast()+1);
    result.pushKV("mutable", aMutable);
    result.pushKV("noncerange", "00000000ffffffff");
    int64_t nSigOpLimit = MAX_BLOCK_SIGOPS_COST;
    int64_t nSizeLimit = MAX_BLOCK_SERIALIZED_SIZE;
    if (fPreSegWit) {
        assert(nSigOpLimit % WITNESS_SCALE_FACTOR == 0);
        nSigOpLimit /= WITNESS_SCALE_FACTOR;
        assert(nSizeLimit % WITNESS_SCALE_FACTOR == 0);
        nSizeLimit /= WITNESS_SCALE_FACTOR;
    }
    result.pushKV("sigoplimit", nSigOpLimit);
    result.pushKV("sizelimit", nSizeLimit);
    if (!fPreSegWit) {
        result.pushKV("weightlimit", (int64_t)MAX_BLOCK_WEIGHT);
    }
    result.pushKV("curtime", pblock->GetBlockTime());
    result.pushKV("bits", strprintf("%08x", pblock->nBits));
    result.pushKV("height", (int64_t)(pindexPrev->nHeight+1));

    if (!pblocktemplate->vchCoinbaseCommitment.empty() && fSupportsSegwit) {
        result.pushKV("default_witness_commitment", HexStr(pblocktemplate->vchCoinbaseCommitment.begin(), pblocktemplate->vchCoinbaseCommitment.end()));
    }

    return result;
}
Exemplo n.º 23
0
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
    const char* pszTimestamp = "NY Times 05/Oct/2011 Steve Jobs, Apple’s Visionary, Dies at 56";
    const CScript genesisOutputScript = CScript() << ParseHex("040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9") << OP_CHECKSIG;
    return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
Exemplo n.º 24
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
        printf("main params\n");
        pchMessageStart[0] = 0x09;
        pchMessageStart[1] = 0x08;
        pchMessageStart[2] = 0x2c;
        pchMessageStart[3] = 0xab;
        nDefaultPort = 46110;
        nRPCPort = 46111;
        bnProofOfWorkLimit = CBigNum(~uint256(0) >> 20);
        nSubsidyHalvingInterval = 100000;

        // Build the genesis block. Note that the output of the genesis coinbase cannot
        // be spent as it did not originally exist in the database.
  
        const char* pszTimestamp = "The Times 5-6-14 30 rebels die in battle to retake Slovyansk";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 1 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1399374629;
        genesis.nBits    = 0x1e0fffff;
        genesis.nNonce   = 1141676;
        
        //// debug print
        hashGenesisBlock = genesis.GetHash();
/*
        while (hashGenesisBlock > bnProofOfWorkLimit.getuint256()){
            if (++genesis.nNonce==0) break;
            hashGenesisBlock = genesis.GetHash();
        }

        printf("%s\n", hashGenesisBlock.ToString().c_str());
        printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("%x\n", bnProofOfWorkLimit.GetCompact());
        genesis.print();

  */
        assert(hashGenesisBlock == uint256("0x00000303a4dc1ffd6b7bf5419ac44798d089eb788aa2e521a42b6f20810b2438"));
        assert(genesis.hashMerkleRoot == uint256("0x8c5a7bbd33316019cfbf75a6ec78c02ab7ff2529abc36dd31e3b3aaa193c9e82"));

        //vSeeds.push_back(CDNSSeedData("someaddress.com or IP addy", "someaddress.com"));


        base58Prefixes[PUBKEY_ADDRESS] = 73; //W
        base58Prefixes[SCRIPT_ADDRESS] = 30;
        base58Prefixes[SECRET_KEY] = 224;

        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
Exemplo n.º 25
0
CScript* CScriptManager::AddScript(tstring sName)
{
    m_aScripts[sName] = CScript();
    return &m_aScripts[sName];
}
Exemplo n.º 26
0
/**
 * Build the genesis block. Note that the output of its generation
 * transaction cannot be spent since it did not originally exist in the
 * database.
 *
 * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=167230846, vtx=1)
 *   CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
 *     CTxIn(COutPoint(000000, -1), coinbase 04ffff001d01043f5468652054696d65732031382f4a616e2f323031382042696c6c696f6e616972652042756666657474207374696c6c2064656e79696e6720426974636f696e)
 *     CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
 *   vMerkleTree: 4a5e1e
 */
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
    const char* pszTimestamp = "The Times 14/Mar/2018 Stephen Hawking dies aged 76";
    const CScript genesisOutputScript = CScript() << ParseHex("04908afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
    return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
Exemplo n.º 27
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
        pchMessageStart[0] = 0xb6;
        pchMessageStart[1] = 0xb6;
        pchMessageStart[2] = 0xb6;
        pchMessageStart[3] = 0xb6;
        nDefaultPort = 48327;
        nRPCPort = 48328;
        bnProofOfWorkLimit = CBigNum(~uint256(0) >> 20);
        nSubsidyHalvingInterval = 100000;

        // Build the genesis block. Note that the output of the genesis coinbase cannot
        // be spent as it did not originally exist in the database.
  
        const char* pszTimestamp = "Nadecoin";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 1 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1300000000;
        genesis.nBits    = 0x1e0fffff;
        genesis.nNonce   = 0;
        
        //// debug print
        hashGenesisBlock = genesis.GetHash();
        //while (hashGenesisBlock > bnProofOfWorkLimit.getuint256()){
        //    if (++genesis.nNonce==0) break;
        //    hashGenesisBlock = genesis.GetHash();
        //}

        printf("%s\n", hashGenesisBlock.ToString().c_str());
        printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("%x\n", bnProofOfWorkLimit.GetCompact());
        genesis.print();
        
        
        assert(hashGenesisBlock == uint256("0x5c85b50a51b3437abdf0ed22d984278d4f95e60650966ecc179e84d7d1a1a271"));
        assert(genesis.hashMerkleRoot == uint256("0xc3ab53bcf6c4174ab22abec6923320e6f2af142fc3ec9c6c6f36065db7d02940"));

        vSeeds.push_back(CDNSSeedData("google.org", "google.org"));


        base58Prefixes[PUBKEY_ADDRESS] = 36;
        base58Prefixes[SCRIPT_ADDRESS] = 30;
        base58Prefixes[SECRET_KEY] = 224;

        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
Exemplo n.º 28
0
    CMainParams() {
        // The message start string is designed to be unlikely to occur in normal data.
        pchMessageStart[0] = 0x0A;
        pchMessageStart[1] = 0x05;
        pchMessageStart[2] = 0x03;
        pchMessageStart[3] = 0x0C;
        nDefaultPort = 10240;
        nRPCPort = 10241;
        bnProofOfWorkLimit = CBigNum(~uint256(0) >> 20);
        nSubsidyHalvingInterval = 102400;

        // Build the genesis block. Note that the output of the genesis coinbase cannot
        // be spent as it did not originally exist in the database.
  
        const char* pszTimestamp = "ImperialCoin's Reign Has Started!";
        CTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 1 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1393638000;
        genesis.nBits    = 0x1e0fffff;
        genesis.nNonce   = 0;
        
        //// debug print
        hashGenesisBlock = genesis.GetHash();
        while (hashGenesisBlock > bnProofOfWorkLimit.getuint256()){
            if (++genesis.nNonce==0) break;
            hashGenesisBlock = genesis.GetHash();
        }

        printf("%s\n", hashGenesisBlock.ToString().c_str());
        printf("%s\n", genesis.hashMerkleRoot.ToString().c_str());
        printf("%x\n", bnProofOfWorkLimit.GetCompact());
        genesis.print();
        
        
        assert(hashGenesisBlock == uint256("0x"));
        assert(genesis.hashMerkleRoot == uint256("0x"));

        vSeeds.push_back(CDNSSeedData("68.232.180.111", "68.232.180.111"));


        base58Prefixes[PUBKEY_ADDRESS] = 1;
        base58Prefixes[SCRIPT_ADDRESS] = 30;
        base58Prefixes[SECRET_KEY] = 224;

        // Convert the pnSeeds array into usable address objects.
        for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
        {
            // It'll only connect to one or two seed nodes because once it connects,
            // it'll get a pile of addresses with newer timestamps.
            // Seed nodes are given a random 'last seen time' 
            const int64 nTwoDays = 2 * 24 * 60 * 60;
            struct in_addr ip;
            memcpy(&ip, &pnSeed[i], sizeof(ip));
            CAddress addr(CService(ip, GetDefaultPort()));
            addr.nTime = GetTime() - GetRand(nTwoDays) - nTwoDays;
            vFixedSeeds.push_back(addr);
        }
    }
Exemplo n.º 29
0
/**
 * Build the genesis block. Note that the output of its generation
 * transaction cannot be spent since it did not originally exist in the
 * database.
 *
 * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
 *   CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
 *     CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
 *     CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
 *   vMerkleTree: 4a5e1e
 */
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
    const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
    const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
    return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
Exemplo n.º 30
0
//
// Bootup the masternode, look for a 10000 PEPE input and register on the network
//
void CActiveMasternode::ManageStatus()
{
    std::string errorMessage;

    if (fDebug) LogPrintf("CActiveMasternode::ManageStatus() - Begin\n");

    if(!fMasterNode) return;

    //need correct adjusted time to send ping
    bool fIsInitialDownload = IsInitialBlockDownload();
    if(fIsInitialDownload) {
        status = MASTERNODE_SYNC_IN_PROCESS;
        LogPrintf("CActiveMasternode::ManageStatus() - Sync in progress. Must wait until sync is complete to start masternode.\n");
        return;
    }

    if(status == MASTERNODE_INPUT_TOO_NEW || status == MASTERNODE_NOT_CAPABLE || status == MASTERNODE_SYNC_IN_PROCESS){
        status = MASTERNODE_NOT_PROCESSED;
    }

    if(status == MASTERNODE_NOT_PROCESSED) {
        if(strMasterNodeAddr.empty()) {
            if(!GetLocal(service)) {
                notCapableReason = "Can't detect external address. Please use the masternodeaddr configuration option.";
                status = MASTERNODE_NOT_CAPABLE;
                LogPrintf("CActiveMasternode::ManageStatus() - not capable: %s\n", notCapableReason.c_str());
                return;
            }
        } else {
        	service = CService(strMasterNodeAddr, true);
        }

        LogPrintf("CActiveMasternode::ManageStatus() - Checking inbound connection to '%s'\n", service.ToString().c_str());


            if(!ConnectNode((CAddress)service, service.ToString().c_str())){
                notCapableReason = "Could not connect to " + service.ToString();
                status = MASTERNODE_NOT_CAPABLE;
                LogPrintf("CActiveMasternode::ManageStatus() - not capable: %s\n", notCapableReason.c_str());
                return;
            }


        if(pwalletMain->IsLocked()){
            notCapableReason = "Wallet is locked.";
            status = MASTERNODE_NOT_CAPABLE;
            LogPrintf("CActiveMasternode::ManageStatus() - not capable: %s\n", notCapableReason.c_str());
            return;
        }

        // Set defaults
        status = MASTERNODE_NOT_CAPABLE;
        notCapableReason = "Unknown. Check debug.log for more information.\n";

        // Choose coins to use
        CPubKey pubKeyCollateralAddress;
        CKey keyCollateralAddress;

        if(GetMasterNodeVin(vin, pubKeyCollateralAddress, keyCollateralAddress)) {

            if(GetInputAge(vin) < MASTERNODE_MIN_CONFIRMATIONS){
                notCapableReason = "Input must have least " + boost::lexical_cast<string>(MASTERNODE_MIN_CONFIRMATIONS) +
                        " confirmations - " + boost::lexical_cast<string>(GetInputAge(vin)) + " confirmations";
                LogPrintf("CActiveMasternode::ManageStatus() - %s\n", notCapableReason.c_str());
                status = MASTERNODE_INPUT_TOO_NEW;
                return;
            }

            LogPrintf("CActiveMasternode::ManageStatus() - Is capable master node!\n");

            status = MASTERNODE_IS_CAPABLE;
            notCapableReason = "";

            pwalletMain->LockCoin(vin.prevout);

            // send to all nodes
            CPubKey pubKeyMasternode;
            CKey keyMasternode;

            if(!darkSendSigner.SetKey(strMasterNodePrivKey, errorMessage, keyMasternode, pubKeyMasternode))
            {
            	LogPrintf("ActiveMasternode::Dseep() - Error upon calling SetKey: %s\n", errorMessage.c_str());
            	return;
            }

            /* donations are not supported in pepecoin.conf */
            CScript donationAddress = CScript();
            int donationPercentage = 0;

            if(!Register(vin, service, keyCollateralAddress, pubKeyCollateralAddress, keyMasternode, pubKeyMasternode, donationAddress, donationPercentage, errorMessage)) {
                LogPrintf("CActiveMasternode::ManageStatus() - Error on Register: %s\n", errorMessage.c_str());
            }

            return;
        } else {
            notCapableReason = "Could not find suitable coins!";
        	LogPrintf("CActiveMasternode::ManageStatus() - Could not find suitable coins!\n");
        }
    }

    //send to all peers
    if(!Dseep(errorMessage)) {
    	LogPrintf("CActiveMasternode::ManageStatus() - Error on Ping: %s\n", errorMessage.c_str());
    }
}