/* This file is part of solidity. solidity is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. solidity is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with solidity. If not, see . */ // SPDX-License-Identifier: GPL-3.0 /** * EVM execution host, i.e. component that implements a simulated Ethereum blockchain * for testing purposes. */ #include #include #include #include #include #include #include using namespace std; using namespace solidity; using namespace solidity::util; using namespace solidity::test; using namespace evmc::literals; using StorageMap = std::unordered_map; evmc::VM& EVMHost::getVM(string const& _path) { static evmc::VM NullVM{nullptr}; static map> vms; if (vms.count(_path) == 0) { evmc_loader_error_code errorCode = {}; auto vm = evmc::VM{evmc_load_and_configure(_path.c_str(), &errorCode)}; if (vm && errorCode == EVMC_LOADER_SUCCESS) { if (vm.get_capabilities() & (EVMC_CAPABILITY_EVM1 | EVMC_CAPABILITY_EWASM)) vms[_path] = make_unique(evmc::VM(move(vm))); else cerr << "VM loaded neither supports EVM1 nor EWASM" << endl; } else { cerr << "Error loading VM from " << _path; if (char const* errorMsg = evmc_last_error_msg()) cerr << ":" << endl << errorMsg; cerr << endl; } } if (vms.count(_path) > 0) return *vms[_path]; return NullVM; } bool EVMHost::checkVmPaths(vector const& _vmPaths) { bool evmVmFound = false; bool ewasmVmFound = false; for (auto const& path: _vmPaths) { evmc::VM& vm = EVMHost::getVM(path.string()); if (!vm) return false; if (vm.has_capability(EVMC_CAPABILITY_EVM1)) { if (evmVmFound) BOOST_THROW_EXCEPTION(runtime_error("Multiple evm1 evmc vms defined. Please only define one evm1 evmc vm.")); evmVmFound = true; } if (vm.has_capability(EVMC_CAPABILITY_EWASM)) { if (ewasmVmFound) BOOST_THROW_EXCEPTION(runtime_error("Multiple ewasm evmc vms where defined. Please only define one ewasm evmc vm.")); ewasmVmFound = true; } } return evmVmFound; } EVMHost::EVMHost(langutil::EVMVersion _evmVersion, evmc::VM& _vm): m_vm(_vm), m_evmVersion(_evmVersion) { if (!m_vm) { cerr << "Unable to find evmone library" << endl; assertThrow(false, Exception, ""); } if (_evmVersion == langutil::EVMVersion::homestead()) m_evmRevision = EVMC_HOMESTEAD; else if (_evmVersion == langutil::EVMVersion::tangerineWhistle()) m_evmRevision = EVMC_TANGERINE_WHISTLE; else if (_evmVersion == langutil::EVMVersion::spuriousDragon()) m_evmRevision = EVMC_SPURIOUS_DRAGON; else if (_evmVersion == langutil::EVMVersion::byzantium()) m_evmRevision = EVMC_BYZANTIUM; else if (_evmVersion == langutil::EVMVersion::constantinople()) m_evmRevision = EVMC_CONSTANTINOPLE; else if (_evmVersion == langutil::EVMVersion::petersburg()) m_evmRevision = EVMC_PETERSBURG; else if (_evmVersion == langutil::EVMVersion::istanbul()) m_evmRevision = EVMC_ISTANBUL; else if (_evmVersion == langutil::EVMVersion::berlin()) m_evmRevision = EVMC_BERLIN; else assertThrow(false, Exception, "Unsupported EVM version"); tx_context.block_difficulty = evmc::uint256be{200000000}; tx_context.block_gas_limit = 20000000; tx_context.block_coinbase = 0x7878787878787878787878787878787878787878_address; tx_context.tx_gas_price = evmc::uint256be{3000000000}; tx_context.tx_origin = 0x9292929292929292929292929292929292929292_address; // Mainnet according to EIP-155 tx_context.chain_id = evmc::uint256be{1}; reset(); } void EVMHost::reset() { accounts.clear(); m_currentAddress = {}; // Clear self destruct records recorded_selfdestructs.clear(); // Mark all precompiled contracts as existing. Existing here means to have a balance (as per EIP-161). // NOTE: keep this in sync with `EVMHost::call` below. // // A lot of precompile addresses had a balance before they became valid addresses for precompiles. // For example all the precompile addresses allocated in Byzantium had a 1 wei balance sent to them // roughly 22 days before the update went live. for (unsigned precompiledAddress = 1; precompiledAddress <= 8; precompiledAddress++) { evmc::address address{precompiledAddress}; // 1wei accounts[address].balance = evmc::uint256be{1}; // Set according to EIP-1052. if (precompiledAddress < 5 || m_evmVersion >= langutil::EVMVersion::byzantium()) accounts[address].codehash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470_bytes32; } } void EVMHost::selfdestruct(const evmc::address& _addr, const evmc::address& _beneficiary) noexcept { // TODO actual selfdestruct is even more complicated. evmc::uint256be balance = accounts[_addr].balance; accounts.erase(_addr); accounts[_beneficiary].balance = balance; // Record self destructs recorded_selfdestructs.push_back({_addr, _beneficiary}); } evmc::result EVMHost::call(evmc_message const& _message) noexcept { if (_message.destination == 0x0000000000000000000000000000000000000001_address) return precompileECRecover(_message); else if (_message.destination == 0x0000000000000000000000000000000000000002_address) return precompileSha256(_message); else if (_message.destination == 0x0000000000000000000000000000000000000003_address) return precompileRipeMD160(_message); else if (_message.destination == 0x0000000000000000000000000000000000000004_address) return precompileIdentity(_message); else if (_message.destination == 0x0000000000000000000000000000000000000005_address && m_evmVersion >= langutil::EVMVersion::byzantium()) return precompileModExp(_message); else if (_message.destination == 0x0000000000000000000000000000000000000006_address && m_evmVersion >= langutil::EVMVersion::byzantium()) return precompileALTBN128G1Add(_message); else if (_message.destination == 0x0000000000000000000000000000000000000007_address && m_evmVersion >= langutil::EVMVersion::byzantium()) return precompileALTBN128G1Mul(_message); else if (_message.destination == 0x0000000000000000000000000000000000000008_address && m_evmVersion >= langutil::EVMVersion::byzantium()) return precompileALTBN128PairingProduct(_message); auto const stateBackup = accounts; u256 value{convertFromEVMC(_message.value)}; auto& sender = accounts[_message.sender]; evmc::bytes code; evmc_message message = _message; if (message.depth == 0) { message.gas -= message.kind == EVMC_CREATE ? evmasm::GasCosts::txCreateGas : evmasm::GasCosts::txGas; for (size_t i = 0; i < message.input_size; ++i) message.gas -= message.input_data[i] == 0 ? evmasm::GasCosts::txDataZeroGas : evmasm::GasCosts::txDataNonZeroGas(m_evmVersion); if (message.gas < 0) { evmc::result result({}); result.status_code = EVMC_OUT_OF_GAS; accounts = stateBackup; return result; } } if (message.kind == EVMC_CREATE) { // TODO this is not the right formula // TODO is the nonce incremented on failure, too? h160 createAddress(keccak256( bytes(begin(message.sender.bytes), end(message.sender.bytes)) + asBytes(to_string(sender.nonce++)) )); message.destination = convertToEVMC(createAddress); code = evmc::bytes(message.input_data, message.input_data + message.input_size); } else if (message.kind == EVMC_CREATE2) { h160 createAddress(keccak256( bytes(1, 0xff) + bytes(begin(message.sender.bytes), end(message.sender.bytes)) + bytes(begin(message.create2_salt.bytes), end(message.create2_salt.bytes)) + keccak256(bytes(message.input_data, message.input_data + message.input_size)).asBytes() )); message.destination = convertToEVMC(createAddress); if (accounts.count(message.destination) && ( accounts[message.destination].nonce > 0 || !accounts[message.destination].code.empty() )) { evmc::result result({}); result.status_code = EVMC_OUT_OF_GAS; accounts = stateBackup; return result; } code = evmc::bytes(message.input_data, message.input_data + message.input_size); } else if (message.kind == EVMC_DELEGATECALL) { code = accounts[message.destination].code; message.destination = m_currentAddress; } else if (message.kind == EVMC_CALLCODE) { code = accounts[message.destination].code; message.destination = m_currentAddress; } else code = accounts[message.destination].code; auto& destination = accounts[message.destination]; if (value != 0 && message.kind != EVMC_DELEGATECALL && message.kind != EVMC_CALLCODE) { sender.balance = convertToEVMC(u256(convertFromEVMC(sender.balance)) - value); destination.balance = convertToEVMC(u256(convertFromEVMC(destination.balance)) + value); } evmc::address currentAddress = m_currentAddress; m_currentAddress = message.destination; evmc::result result = m_vm.execute(*this, m_evmRevision, message, code.data(), code.size()); m_currentAddress = currentAddress; if (message.kind == EVMC_CREATE || message.kind == EVMC_CREATE2) { result.gas_left -= static_cast(evmasm::GasCosts::createDataGas * result.output_size); if (result.gas_left < 0) { result.gas_left = 0; result.status_code = EVMC_OUT_OF_GAS; // TODO clear some fields? } else { result.create_address = message.destination; destination.code = evmc::bytes(result.output_data, result.output_data + result.output_size); destination.codehash = convertToEVMC(keccak256({result.output_data, result.output_size})); } } if (result.status_code != EVMC_SUCCESS) accounts = stateBackup; return result; } evmc::bytes32 EVMHost::get_block_hash(int64_t _number) const noexcept { return convertToEVMC(u256("0x3737373737373737373737373737373737373737373737373737373737373737") + _number); } h160 EVMHost::convertFromEVMC(evmc::address const& _addr) { return h160(bytes(begin(_addr.bytes), end(_addr.bytes))); } evmc::address EVMHost::convertToEVMC(h160 const& _addr) { evmc::address a; for (unsigned i = 0; i < 20; ++i) a.bytes[i] = _addr[i]; return a; } h256 EVMHost::convertFromEVMC(evmc::bytes32 const& _data) { return h256(bytes(begin(_data.bytes), end(_data.bytes))); } evmc::bytes32 EVMHost::convertToEVMC(h256 const& _data) { evmc::bytes32 d; for (unsigned i = 0; i < 32; ++i) d.bytes[i] = _data[i]; return d; } evmc::result EVMHost::precompileECRecover(evmc_message const& _message) noexcept { // NOTE this is a partial implementation for some inputs. static map const inputOutput{ { fromHex( "18c547e4f7b0f325ad1e56f57e26c745b09a3e503d86e00e5255ff7f715d3d1c" "000000000000000000000000000000000000000000000000000000000000001c" "73b1693892219d736caba55bdb67216e485557ea6b6af75f37096c9aa6a5a75f" "eeb940b1d03b21e36b0e47e79769f095fe2ab855bd91e3a38756b7d75a9c4549" ), fromHex("000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b") }, { fromHex( "47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad" "000000000000000000000000000000000000000000000000000000000000001c" "debaaa0cddb321b2dcaaf846d39605de7b97e77ba6106587855b9106cb104215" "61a22d94fa8b8a687ff9c911c844d1c016d1a685a9166858f9c7c1bc85128aca" ), fromHex("0000000000000000000000008743523d96a1b2cbe0c6909653a56da18ed484af") } }; evmc::result result = precompileGeneric(_message, inputOutput); result.status_code = EVMC_SUCCESS; result.gas_left = _message.gas; return result; } evmc::result EVMHost::precompileSha256(evmc_message const& _message) noexcept { // static data so that we do not need a release routine... bytes static hash; hash = picosha2::hash256(bytes( _message.input_data, _message.input_data + _message.input_size )); evmc::result result({}); result.gas_left = _message.gas; result.output_data = hash.data(); result.output_size = hash.size(); return result; } evmc::result EVMHost::precompileRipeMD160(evmc_message const& _message) noexcept { // NOTE this is a partial implementation for some inputs. static map const inputOutput{ { bytes{}, fromHex("0000000000000000000000009c1185a5c5e9fc54612808977ee8f548b2258d31") }, { fromHex("0000000000000000000000000000000000000000000000000000000000000004"), fromHex("0000000000000000000000001b0f3c404d12075c68c938f9f60ebea4f74941a0") }, { fromHex("0000000000000000000000000000000000000000000000000000000000000005"), fromHex("000000000000000000000000ee54aa84fc32d8fed5a5fe160442ae84626829d9") }, { fromHex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), fromHex("0000000000000000000000001cf4e77f5966e13e109703cd8a0df7ceda7f3dc3") }, { fromHex("0000000000000000000000000000000000000000000000000000000000000000"), fromHex("000000000000000000000000f93175303eba2a7b372174fc9330237f5ad202fc") }, { fromHex( "0800000000000000000000000000000000000000000000000000000000000000" "0401000000000000000000000000000000000000000000000000000000000000" "0000000400000000000000000000000000000000000000000000000000000000" "00000100" ), fromHex("000000000000000000000000f93175303eba2a7b372174fc9330237f5ad202fc") }, { fromHex( "0800000000000000000000000000000000000000000000000000000000000000" "0501000000000000000000000000000000000000000000000000000000000000" "0000000500000000000000000000000000000000000000000000000000000000" "00000100" ), fromHex("0000000000000000000000004f4fc112e2bfbe0d38f896a46629e08e2fcfad5") }, { fromHex( "08ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff" "ff010000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff" "ffffffff00000000000000000000000000000000000000000000000000000000" "00000100" ), fromHex("000000000000000000000000c0a2e4b1f3ff766a9a0089e7a410391730872495") }, { fromHex( "6162636465666768696a6b6c6d6e6f707172737475767778797a414243444546" "4748494a4b4c4d4e4f505152535455565758595a303132333435363738393f21" ), fromHex("00000000000000000000000036c6b90a49e17d4c1e1b0e634ec74124d9b207da") }, { fromHex("6162636465666768696a6b6c6d6e6f707172737475767778797a414243444546"), fromHex("000000000000000000000000ac5ab22e07b0fb80c69b6207902f725e2507e546") } }; return precompileGeneric(_message, inputOutput); } evmc::result EVMHost::precompileIdentity(evmc_message const& _message) noexcept { // static data so that we do not need a release routine... bytes static data; data = bytes(_message.input_data, _message.input_data + _message.input_size); evmc::result result({}); result.gas_left = _message.gas; result.output_data = data.data(); result.output_size = data.size(); return result; } evmc::result EVMHost::precompileModExp(evmc_message const&) noexcept { // TODO implement evmc::result result({}); result.status_code = EVMC_FAILURE; return result; } evmc::result EVMHost::precompileALTBN128G1Add(evmc_message const& _message) noexcept { // NOTE this is a partial implementation for some inputs. static map const inputOutput{ { fromHex( "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" "1385281136ff5b2c326807ff0a824b6ca4f21fcc7c8764e9801bc4ad497d5012" "02254594be8473dcf018a2aa66ea301e38fc865823acf75a9901721d1fc6bf4c" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "1385281136ff5b2c326807ff0a824b6ca4f21fcc7c8764e9801bc4ad497d5012" "02254594be8473dcf018a2aa66ea301e38fc865823acf75a9901721d1fc6bf4c" ) }, { fromHex( "0000000000000000000000000000000000000000000000000000000000000001" "0000000000000000000000000000000000000000000000000000000000000002" "0000000000000000000000000000000000000000000000000000000000000001" "0000000000000000000000000000000000000000000000000000000000000002" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "030644e72e131a029b85045b68181585d97816a916871ca8d3c208c16d87cfd3" "15ed738c0e0a7c92e7845f96b2ae9c0a68a6a449e3538fc7ff3ebf7a5a18a2c4" ) }, { fromHex( "0000000000000000000000000000000000000000000000000000000000000001" "0000000000000000000000000000000000000000000000000000000000000002" "0000000000000000000000000000000000000000000000000000000000000001" "30644e72e131a029b85045b68181585d97816a916871ca8d3c208c16d87cfd45" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ) }, { fromHex( "10b4876441e14a6be92a7fe66550848c01c676a12ac31d7cc13b21f49c4307c8" "09f5528bdb0ef9354837a0f4b4c9da973bd5b805d359976f719ab0b74e0a7368" "28d3c57516712e7843a5b3cfa7d7274a037943f5bd57c227620ad207728e4283" "2795fa9df21d4b8b329a45bae120f1fd9df9049ecacaa9dd1eca18bc6a55cd2f" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "16aed5ed486df6b2fb38015ded41400009ed4f34bef65b87b1f90f47052f8d94" "16dabf21b3f25b9665269d98dc17b1da6118251dc0b403ae50e96dfe91239375" ) }, { fromHex( "1385281136ff5b2c326807ff0a824b6ca4f21fcc7c8764e9801bc4ad497d5012" "02254594be8473dcf018a2aa66ea301e38fc865823acf75a9901721d1fc6bf4c" "1644e84fef7b7fdc98254f0654580173307a3bc44db990581e7ab55a22446dcf" "28c2916b7e875692b195831945805438fcd30d2693d8a80cf8c88ec6ef4c315d" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "1e018816fc9bbd91313301ae9c254bb7d64d6cd54f3b49b92925e43e256b5faa" "1d1f2259c715327bedb42c095af6c0267e4e1be836b4e04b3f0502552f93cca9" ) }, { fromHex( "16aed5ed486df6b2fb38015ded41400009ed4f34bef65b87b1f90f47052f8d94" "16dabf21b3f25b9665269d98dc17b1da6118251dc0b403ae50e96dfe91239375" "25ff95a3abccf32adc6a4c3c8caddca67723d8ada802e9b9f612e3ddb40b2005" "0d82b09bb4ec927bbf182bdc402790429322b7e2f285f2aad8ea135cbf7143d8" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "29d160febeef9770d47a32ee3b763850eb0594844fa57dd31b8ed02c78fdb797" "2c7cdf62c2498486fd52646e577a06723ce97737b3c958262d78c4a413661e8a" ), }, { fromHex( "18014701594179c6b9ccae848e3d15c1f76f8a68b8092578296520e46c9bae0c" "1b5ed0e9e8f3ff35589ea81a45cf63887d4a92c099a3be1d97b26f0db96323dd" "16a1d378d1a98cf5383cdc512011234287ca43b6a078d1842d5c58c5b1f475cc" "1309377a7026d08ca1529eab74381a7e0d3a4b79d80bacec207cd52fc8e3769c" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "2583ed10e418133e44619c336f1be5ddae9e20d634a7683d9661401c750d7df4" "0185fbba22de9e698262925665735dbc4d6e8288bc3fc39fae10ca58e16e77f7" ) }, { fromHex( "1c76476f4def4bb94541d57ebba1193381ffa7aa76ada664dd31c16024c43f59" "3034dd2920f673e204fee2811c678745fc819b55d3e9d294e45c9b03a76aef41" "0f25929bcb43d5a57391564615c9e70a992b10eafa4db109709649cf48c50dd2" "16da2f5cb6be7a0aa72c440c53c9bbdfec6c36c7d515536431b3a865468acbba" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "1496064626ba8bffeb7805f0d16143a65649bb0850333ea512c03fcdaf31e254" "07b4f210ab542533f1ee5633ae4406cd16c63494b537ce3f1cf4afff6f76a48f" ), }, { fromHex( "1e018816fc9bbd91313301ae9c254bb7d64d6cd54f3b49b92925e43e256b5faa" "1d1f2259c715327bedb42c095af6c0267e4e1be836b4e04b3f0502552f93cca9" "2364294faf6b89fedeede9986aa777c4f6c2f5c4a4559ee93dfec9b7b94ef80b" "05aeae62655ea23865ae6661ae371a55c12098703d0f2301f4223e708c92efc6" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "2801b21090cbc48409e352647f3857134d373f81741f9d5e3d432f336d76f517" "13cf106acf943c2a331de21c7d5e3351354e7412f2dba2918483a6593a6828d4" ) }, { fromHex( "2583ed10e418133e44619c336f1be5ddae9e20d634a7683d9661401c750d7df4" "0185fbba22de9e698262925665735dbc4d6e8288bc3fc39fae10ca58e16e77f7" "258f1faa356e470cca19c928afa5ceed6215c756912af5725b8db5777cc8f3b6" "175ced8a58d0c132c2b95ba14c16dde93e7f7789214116ff69da6f44daa966e6" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "10b4876441e14a6be92a7fe66550848c01c676a12ac31d7cc13b21f49c4307c8" "09f5528bdb0ef9354837a0f4b4c9da973bd5b805d359976f719ab0b74e0a7368" ) }, { fromHex( "26dcfbc2e0bc9d82efb4acd73cb3e99730e27e10177fcfb78b6399a4bfcdf391" "27c440dbd5053253a3a692f9bf89b9b6e9612127cf97db1e11ffa9679acc933b" "1496064626ba8bffeb7805f0d16143a65649bb0850333ea512c03fcdaf31e254" "07b4f210ab542533f1ee5633ae4406cd16c63494b537ce3f1cf4afff6f76a48f" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "186bac5188a98c45e6016873d107f5cd131f3a3e339d0375e58bd6219347b008" "1e396bc242de0214898b0f68035f53ad5a6f96c6c8390ac56ed6ec9561d23159" ) }, { fromHex( "26dcfbc2e0bc9d82efb4acd73cb3e99730e27e10177fcfb78b6399a4bfcdf391" "27c440dbd5053253a3a692f9bf89b9b6e9612127cf97db1e11ffa9679acc933b" "1c76476f4def4bb94541d57ebba1193381ffa7aa76ada664dd31c16024c43f59" "3034dd2920f673e204fee2811c678745fc819b55d3e9d294e45c9b03a76aef41" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "20a754d2071d4d53903e3b31a7e98ad6882d58aec240ef981fdf0a9d22c5926a" "29c853fcea789887315916bbeb89ca37edb355b4f980c9a12a94f30deeed3021" ) }, { fromHex( "27231d5cdd0011259ff75678cf5a8f7840c22cb71d52b25e21e071205e8d9bc4" "26dd3d225c9a71476db0cf834232eba84020f3073c6d20c519963e0b98f235e1" "2174f0221490cd9c15b0387f3251ec3d49517a51c37a8076eac12afb4a95a707" "1d1c3fcd3161e2a417b4df0955f02db1fffa9005210fb30c5aa3755307e9d1f5" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "18014701594179c6b9ccae848e3d15c1f76f8a68b8092578296520e46c9bae0c" "1b5ed0e9e8f3ff35589ea81a45cf63887d4a92c099a3be1d97b26f0db96323dd" ), }, { fromHex( "2801b21090cbc48409e352647f3857134d373f81741f9d5e3d432f336d76f517" "13cf106acf943c2a331de21c7d5e3351354e7412f2dba2918483a6593a6828d4" "2a49621e12910cd90f3e731083d454255bf1c533d6e15b8699156778d0f27f5d" "2590ee31824548d159aa2d22296bf149d564c0872f41b89b7dc5c6e6e3cd1c4d" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "27231d5cdd0011259ff75678cf5a8f7840c22cb71d52b25e21e071205e8d9bc4" "26dd3d225c9a71476db0cf834232eba84020f3073c6d20c519963e0b98f235e1" ) }, { fromHex( "29d160febeef9770d47a32ee3b763850eb0594844fa57dd31b8ed02c78fdb797" "2c7cdf62c2498486fd52646e577a06723ce97737b3c958262d78c4a413661e8a" "0aee46a7ea6e80a3675026dfa84019deee2a2dedb1bbe11d7fe124cb3efb4b5a" "044747b6e9176e13ede3a4dfd0d33ccca6321b9acd23bf3683a60adc0366ebaf" "0000000000000000000000000000000000000000000000000000000000000000" "0000000000000000000000000000000000000000000000000000000000000000" ), fromHex( "26dcfbc2e0bc9d82efb4acd73cb3e99730e27e10177fcfb78b6399a4bfcdf391" "27c440dbd5053253a3a692f9bf89b9b6e9612127cf97db1e11ffa9679acc933b" ) } }; return precompileGeneric(_message, inputOutput); } evmc::result EVMHost::precompileALTBN128G1Mul(evmc_message const& _message) noexcept { // NOTE this is a partial implementation for some inputs. static map const inputOutput{ { fromHex("0000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000"), fromHex("030644e72e131a029b85045b68181585d97816a916871ca8d3c208c16d87cfd315ed738c0e0a7c92e7845f96b2ae9c0a68a6a449e3538fc7ff3ebf7a5a18a2c4") }, { fromHex("0000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000050000000000000000000000000000000000000000000000000000000000000000"), fromHex("17c139df0efee0f766bc0204762b774362e4ded88953a39ce849a8a7fa163fa901e0559bacb160664764a357af8a9fe70baa9258e0b959273ffc5718c6d4cc7c") }, { fromHex("09b54f111d3b2d1b2fe1ae9669b3db3d7bf93b70f00647e65c849275de6dc7fe18b2e77c63a3e400d6d1f1fbc6e1a1167bbca603d34d03edea231eb0ab7b14b4030f7b0c405c888aff922307ea2cd1c70f64664bab76899500341f4260a209290000000000000000000000000000000000000000000000000000000000000000"), fromHex("16a1d378d1a98cf5383cdc512011234287ca43b6a078d1842d5c58c5b1f475cc1309377a7026d08ca1529eab74381a7e0d3a4b79d80bacec207cd52fc8e3769c") }, { fromHex("0a6de0e2240aa253f46ce0da883b61976e3588146e01c9d8976548c145fe6e4a04fbaa3a4aed4bb77f30ebb07a3ec1c7d77a7f2edd75636babfeff97b1ea686e1551dcd4965285ef049512d2d30cbfc1a91acd5baad4a6e19e22e93176197f170000000000000000000000000000000000000000000000000000000000000000"), fromHex("28d3c57516712e7843a5b3cfa7d7274a037943f5bd57c227620ad207728e42832795fa9df21d4b8b329a45bae120f1fd9df9049ecacaa9dd1eca18bc6a55cd2f") }, { fromHex("0c54b42137b67cc268cbb53ac62b00ecead23984092b494a88befe58445a244a18e3723d37fae9262d58b548a0575f59d9c3266db7afb4d5739555837f6b8b3e0c692b41f1acc961f6ea83bae2c3a1a55c54f766c63ba76989f52c149c17b5e70000000000000000000000000000000000000000000000000000000000000000"), fromHex("258f1faa356e470cca19c928afa5ceed6215c756912af5725b8db5777cc8f3b6175ced8a58d0c132c2b95ba14c16dde93e7f7789214116ff69da6f44daa966e6") }, { fromHex("0f103f14a584d4203c27c26155b2c955f8dfa816980b24ba824e1972d6486a5d0c4165133b9f5be17c804203af781bcf168da7386620479f9b885ecbcd27b17b0ea71d0abb524cac7cfff5323e1d0b14ab705842426c978f96753ccce258ed930000000000000000000000000000000000000000000000000000000000000000"), fromHex("2a49621e12910cd90f3e731083d454255bf1c533d6e15b8699156778d0f27f5d2590ee31824548d159aa2d22296bf149d564c0872f41b89b7dc5c6e6e3cd1c4d") }, { fromHex("111e2e2a5f8828f80ddad08f9f74db56dac1cc16c1cb278036f79a84cf7a116f1d7d62e192b219b9808faa906c5ced871788f6339e8d91b83ac1343e20a16b3000000000000000000000000000000000000000e40800000000000000008cdcbc0000000000000000000000000000000000000000000000000000000000000000"), fromHex("25ff95a3abccf32adc6a4c3c8caddca67723d8ada802e9b9f612e3ddb40b20050d82b09bb4ec927bbf182bdc402790429322b7e2f285f2aad8ea135cbf7143d8") }, { fromHex("17d5d09b4146424bff7e6fb01487c477bbfcd0cdbbc92d5d6457aae0b6717cc502b5636903efbf46db9235bbe74045d21c138897fda32e079040db1a16c1a7a11887420878c0c8e37605291c626585eabbec8d8b97a848fe8d58a37b004583510000000000000000000000000000000000000000000000000000000000000000"), fromHex("2364294faf6b89fedeede9986aa777c4f6c2f5c4a4559ee93dfec9b7b94ef80b05aeae62655ea23865ae6661ae371a55c12098703d0f2301f4223e708c92efc6") }, { fromHex("1c36e713d4d54e3a9644dffca1fc524be4868f66572516025a61ca542539d43f042dcc4525b82dfb242b09cb21909d5c22643dcdbe98c4d082cc2877e96b24db016086cc934d5cab679c6991a4efcedbab26d7e4fb23b6a1ad4e6b5c2fb59ce50000000000000000000000000000000000000000000000000000000000000000"), fromHex("1644e84fef7b7fdc98254f0654580173307a3bc44db990581e7ab55a22446dcf28c2916b7e875692b195831945805438fcd30d2693d8a80cf8c88ec6ef4c315d") }, { fromHex("1e39e9f0f91fa7ff8047ffd90de08785777fe61c0e3434e728fce4cf35047ddc2e0b64d75ebfa86d7f8f8e08abbe2e7ae6e0a1c0b34d028f19fa56e9450527cb1eec35a0e955cad4bee5846ae0f1d0b742d8636b278450c534e38e06a60509f90000000000000000000000000000000000000000000000000000000000000000"), fromHex("1385281136ff5b2c326807ff0a824b6ca4f21fcc7c8764e9801bc4ad497d501202254594be8473dcf018a2aa66ea301e38fc865823acf75a9901721d1fc6bf4c") }, { fromHex("232063b584fb76c8d07995bee3a38fa7565405f3549c6a918ddaa90ab971e7f82ac9b135a81d96425c92d02296322ad56ffb16299633233e4880f95aafa7fda70689c3dc4311426ee11707866b2cbdf9751dacd07245bf99d2113d3f5a8cac470000000000000000000000000000000000000000000000000000000000000000"), fromHex("2174f0221490cd9c15b0387f3251ec3d49517a51c37a8076eac12afb4a95a7071d1c3fcd3161e2a417b4df0955f02db1fffa9005210fb30c5aa3755307e9d1f5") } }; return precompileGeneric(_message, inputOutput); } evmc::result EVMHost::precompileALTBN128PairingProduct(evmc_message const& _message) noexcept { // This is a partial implementation - it always returns "success" bytes static data = fromHex("0000000000000000000000000000000000000000000000000000000000000001"); return resultWithGas(_message, data); } evmc::result EVMHost::precompileGeneric( evmc_message const& _message, map const& _inOut) noexcept { bytes input(_message.input_data, _message.input_data + _message.input_size); if (_inOut.count(input)) return resultWithGas(_message, _inOut.at(input)); else { evmc::result result({}); result.status_code = EVMC_FAILURE; return result; } } evmc::result EVMHost::resultWithGas( evmc_message const& _message, bytes const& _data ) noexcept { evmc::result result({}); result.status_code = EVMC_SUCCESS; result.gas_left = _message.gas; result.output_data = _data.data(); result.output_size = _data.size(); return result; } void EVMHost::print_all_storage(ostringstream& _os) { for (auto const& [addr, mockedAccount]: accounts) { _os << "Address: " << convertFromEVMC(addr) << endl; for (auto const& [slot, value]: get_address_storage(addr)) if (get_storage(addr, slot)) _os << convertFromEVMC(slot) << ": " << convertFromEVMC(value.value) << endl; } } void EVMHost::print_storage_at(evmc::address const& _addr, ostringstream& _os) { for (auto const& [slot, value]: get_address_storage(_addr)) if (get_storage(_addr, slot)) _os << convertFromEVMC(slot) << ": " << convertFromEVMC(value.value) << endl; } StorageMap const& EVMHost::get_address_storage(evmc::address const& _addr) { assertThrow(account_exists(_addr), Exception, "Account does not exist."); return accounts[_addr].storage; }