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adds AUTH and AUTHCALL opcodes to Prague evms. adds a mutable authorizedBy:Address field to the MessageFrame adds AUTH opcode costing to gas calculators --------- Signed-off-by: Justin Florentine <justin+github@florentine.us>
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102 changes: 102 additions & 0 deletions
102
evm/src/main/java/org/hyperledger/besu/evm/operation/AuthCallOperation.java
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/* | ||
* Copyright contributors to Hyperledger Besu. | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with | ||
* the License. You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on | ||
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
* specific language governing permissions and limitations under the License. | ||
* | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
package org.hyperledger.besu.evm.operation; | ||
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import static org.hyperledger.besu.evm.internal.Words.clampedToLong; | ||
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import org.hyperledger.besu.datatypes.Address; | ||
import org.hyperledger.besu.datatypes.Wei; | ||
import org.hyperledger.besu.evm.EVM; | ||
import org.hyperledger.besu.evm.frame.ExceptionalHaltReason; | ||
import org.hyperledger.besu.evm.frame.MessageFrame; | ||
import org.hyperledger.besu.evm.gascalculator.GasCalculator; | ||
import org.hyperledger.besu.evm.internal.Words; | ||
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import org.apache.tuweni.bytes.Bytes32; | ||
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/** Introduced via EIP-3074 to call another contract with a different authorization context. */ | ||
public class AuthCallOperation extends AbstractCallOperation { | ||
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/** | ||
* Instantiates a new AuthCallOperation. | ||
* | ||
* @param gasCalculator a Prague or later gas calculator | ||
*/ | ||
public AuthCallOperation(final GasCalculator gasCalculator) { | ||
super(0xF7, "AUTHCALL", 7, 1, gasCalculator); | ||
} | ||
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@Override | ||
protected Address to(final MessageFrame frame) { | ||
return Words.toAddress(frame.getStackItem(1)); | ||
} | ||
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@Override | ||
protected Wei value(final MessageFrame frame) { | ||
return Wei.wrap(frame.getStackItem(2)); | ||
} | ||
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@Override | ||
protected Wei apparentValue(final MessageFrame frame) { | ||
return value(frame); | ||
} | ||
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@Override | ||
protected long inputDataOffset(final MessageFrame frame) { | ||
return clampedToLong(frame.getStackItem(3)); | ||
} | ||
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@Override | ||
protected long inputDataLength(final MessageFrame frame) { | ||
return clampedToLong(frame.getStackItem(4)); | ||
} | ||
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@Override | ||
protected long outputDataOffset(final MessageFrame frame) { | ||
return clampedToLong(frame.getStackItem(5)); | ||
} | ||
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@Override | ||
protected long outputDataLength(final MessageFrame frame) { | ||
return clampedToLong(frame.getStackItem(6)); | ||
} | ||
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@Override | ||
protected Address address(final MessageFrame frame) { | ||
return to(frame); | ||
} | ||
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@Override | ||
protected Address sender(final MessageFrame frame) { | ||
return frame.getAuthorizedBy(); | ||
} | ||
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@Override | ||
public long gasAvailableForChildCall(final MessageFrame frame) { | ||
return gasCalculator().gasAvailableForChildCall(frame, gas(frame), !value(frame).isZero()); | ||
} | ||
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@Override | ||
public OperationResult execute(final MessageFrame frame, final EVM evm) { | ||
if (frame.isStatic() && !value(frame).isZero()) { | ||
return new OperationResult(cost(frame, true), ExceptionalHaltReason.ILLEGAL_STATE_CHANGE); | ||
} else if (frame.getAuthorizedBy() != null) { | ||
return super.execute(frame, evm); | ||
} else { | ||
frame.pushStackItem(Bytes32.ZERO); | ||
return new OperationResult(cost(frame, true), null); | ||
} | ||
} | ||
} |
109 changes: 109 additions & 0 deletions
109
evm/src/main/java/org/hyperledger/besu/evm/operation/AuthOperation.java
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/* | ||
* Copyright contributors to Hyperledger Besu. | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with | ||
* the License. You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on | ||
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
* specific language governing permissions and limitations under the License. | ||
* | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
package org.hyperledger.besu.evm.operation; | ||
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import static org.hyperledger.besu.evm.internal.Words.clampedToLong; | ||
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import org.hyperledger.besu.crypto.Hash; | ||
import org.hyperledger.besu.crypto.SECPPublicKey; | ||
import org.hyperledger.besu.crypto.SECPSignature; | ||
import org.hyperledger.besu.crypto.SignatureAlgorithm; | ||
import org.hyperledger.besu.crypto.SignatureAlgorithmFactory; | ||
import org.hyperledger.besu.datatypes.Address; | ||
import org.hyperledger.besu.evm.EVM; | ||
import org.hyperledger.besu.evm.frame.MessageFrame; | ||
import org.hyperledger.besu.evm.gascalculator.GasCalculator; | ||
import org.hyperledger.besu.evm.internal.Words; | ||
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import java.util.Optional; | ||
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import org.apache.tuweni.bytes.Bytes; | ||
import org.apache.tuweni.bytes.Bytes32; | ||
import org.apache.tuweni.units.bigints.UInt256; | ||
import org.slf4j.Logger; | ||
import org.slf4j.LoggerFactory; | ||
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/** The AUTH operation. */ | ||
public class AuthOperation extends AbstractOperation { | ||
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/** The constant MAGIC defined by EIP-3074 */ | ||
public static final byte MAGIC = 0x4; | ||
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private static final Logger LOG = LoggerFactory.getLogger(AuthOperation.class); | ||
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private static final SignatureAlgorithm signatureAlgorithm = | ||
SignatureAlgorithmFactory.getInstance(); | ||
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/** | ||
* Instantiates a new AuthOperation. | ||
* | ||
* @param gasCalculator a Prague or later gas calculator | ||
*/ | ||
public AuthOperation(final GasCalculator gasCalculator) { | ||
super(0xF6, "AUTH", 3, 1, gasCalculator); | ||
} | ||
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@Override | ||
public OperationResult execute(final MessageFrame frame, final EVM evm) { | ||
// create authority from stack | ||
Address authority = Words.toAddress(frame.getStackItem(0)); | ||
long offset = clampedToLong(frame.getStackItem(1)); | ||
long length = clampedToLong(frame.getStackItem(2)); | ||
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byte yParity = frame.readMemory(offset, 1).get(0); | ||
Bytes32 r = Bytes32.wrap(frame.readMemory(offset + 1, 32)); | ||
Bytes32 s = Bytes32.wrap(frame.readMemory(offset + 33, 32)); | ||
Bytes32 commit = Bytes32.wrap(frame.readMemory(offset + 65, 32)); | ||
Bytes32 invoker = Bytes32.leftPad(frame.getContractAddress()); | ||
Bytes32 senderNonce = | ||
Bytes32.leftPad( | ||
Bytes.ofUnsignedLong(frame.getWorldUpdater().getAccount(authority).getNonce())); | ||
if (evm.getChainId().isEmpty()) { | ||
frame.pushStackItem(UInt256.ZERO); | ||
LOG.error("ChainId is not set"); | ||
return new OperationResult(0, null); | ||
} | ||
Bytes authPreImage = | ||
Bytes.concatenate( | ||
Bytes.ofUnsignedShort(MAGIC), evm.getChainId().get(), senderNonce, invoker, commit); | ||
Bytes32 messageHash = Hash.keccak256(authPreImage); | ||
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final long gasCost = | ||
super.gasCalculator().authOperationGasCost(frame, offset, length, authority); | ||
Optional<SECPPublicKey> publicKey; | ||
try { | ||
SECPSignature signature = | ||
signatureAlgorithm.createSignature( | ||
r.toUnsignedBigInteger(), s.toUnsignedBigInteger(), yParity); | ||
publicKey = signatureAlgorithm.recoverPublicKeyFromSignature(messageHash, signature); | ||
} catch (IllegalArgumentException e) { | ||
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frame.pushStackItem(UInt256.ZERO); | ||
return new OperationResult(gasCost, null); | ||
} | ||
if (publicKey.isPresent()) { | ||
Address signerAddress = Address.extract(publicKey.get()); | ||
if (signerAddress.equals(authority)) { | ||
frame.setAuthorizedBy(authority); | ||
frame.pushStackItem(UInt256.ONE); | ||
} else { | ||
frame.pushStackItem(UInt256.ZERO); | ||
} | ||
} else { | ||
frame.pushStackItem(UInt256.ZERO); | ||
} | ||
return new OperationResult(gasCost, null); | ||
} | ||
} |
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