1036dc70be
Here is the list: a.BEP-227: Implement EIP-3198: BASEFEE opcode b.BEP-226: Implement EIP-1559 with base fee of 0 c.BEP-228: Implement EIP-3541: Prevent deploying contracts starting with 0xEF d.BEP-212: Implement EIP-3529: Reduction in Refunds
50 lines
1.7 KiB
Go
50 lines
1.7 KiB
Go
// Copyright 2021 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package misc
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import (
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"fmt"
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"math/big"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/params"
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)
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// VerifyEip1559Header verifies some header attributes which were changed in EIP-1559,
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// - gas limit check
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// - basefee check
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func VerifyEip1559Header(config *params.ChainConfig, parent, header *types.Header) error {
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// Verify the header is not malformed
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if header.BaseFee == nil {
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return fmt.Errorf("header is missing baseFee")
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}
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// Verify the baseFee is correct based on the parent header.
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expectedBaseFee := CalcBaseFee(config, parent)
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if header.BaseFee.Cmp(expectedBaseFee) != 0 {
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return fmt.Errorf("invalid baseFee: have %s, want %s, parentBaseFee %s, parentGasUsed %d",
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expectedBaseFee, header.BaseFee, parent.BaseFee, parent.GasUsed)
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}
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return nil
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}
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// CalcBaseFee calculates the basefee of the header.
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func CalcBaseFee(config *params.ChainConfig, parent *types.Header) *big.Int {
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return new(big.Int).SetUint64(params.InitialBaseFee)
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}
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